notice of preparation of an environmental impact … · 2018. 10. 18. · ashley construction, inc....

NOTICE OF PREPARATION OF AN ENVIRONMENTAL IMPACT REPORT FOR

VESTING TENTATIVE MAP NO. 63567 FOR THE ASHLEY CONSTRUCTION DEVELOPMENT PROJECT

TO: State Clearinghouse Public Agencies Interested Parties

FROM: City of Hidden Hills 6165 Spring Valley Road Hidden Hills, CA 91302

This Notice of Preparation (NOP) has been prepared to notify agencies and interested parties that the City of Hidden Hills will serve as the Lead Agency, consistent with Section 15021 of the California Environmental Quality Act (CEQA) Guidelines, in preparing an Environmental Impact Report (EIR) for the proposed Vesting Tentative Map No. 63567 (the “proposed project”). The City of Hidden Hills is soliciting the views of interested persons and agencies as to the scope and content of the environmental information to be studied in the EIR. The EIR will address the potential physical environmental effects of the proposed project for each of the environmental topics determined potentially significant, as outlined in the attached Initial Study.

In accordance with Section 15082 of the CEQA Guidelines, this Notice of Preparation (NOP) is being sent to the Office of Planning and Research, Responsible Agencies, Trustee Agencies, other interested parties, and properties within 500 feet of the proposed project. Responsible Agencies are those public agencies, besides the City of Hidden Hills, that also have a role in approving or carrying out the proposed project. Agencies are requested to review the proposed project description provided in this NOP and provide comments on environmental issues related to the statutory responsibilities of the agency. If you are an authorized representative of a Responsible Agency, or a Trustee Agency, a transportation planning agency, agency with transportation facilities that may be affected, or a Federal agency involved in approving or funding the proposed project, the City of Hidden Hills encourages you to express the views of your agency as to the scope and content of the environmental information that is relevant to your agency's statutory responsibilities in connection with the proposed project. Your agency will need to use the EIR if it will consider a permit or other approval for the proposed project. In responding, please also provide the name, address, telephone number and e-mail address of the contact person for your agency.

Scoping comments on the EIR should focus on discussing possible impacts of the proposed project on the physical environment, ways in which potential adverse effects might be minimized, and alternatives to the proposed project in light of the EIR’s purpose to provide useful and accurate information about such factors.

Project Location: The project site consists of a 16.92-acre area that straddles the border between the City of Hidden Hills and the County of Los Angeles near Bridle Trail Road and Lasher Road. The site is partially bound by Bridle Trail Road to the south and Lasher Road to the east, with vacant lots and single-family properties along other

portions of the project boundary. The site is comprised of four existing full parcels (APNs 2049-022-030, 2049-022-029, 2049-028-104, 2049-028-105) and portions of an additional four parcels (APNs 2049-014-

009, 2049-014-012, 2049-028-106, 2049-028-107). Of the 16.92 acres to be subdivided, 8.96 acres are currently within the City of Hidden Hills and the remaining 7.96 acres are in unincorporated Los Angeles County. The unincorporated portion of the site is within the City’s existing Sphere of Influence and is

proposed to be annexed into the City. Refer to Figure 1 for the location of the project site and Figure 2 for the boundary of the project site and the site’s neighborhood context.

Figure 1 Regional Location

Figure 2 Project Location

Project Applicant: Ashley Construction, Inc. 5300 Whitman Road Hidden Hills, CA 91302

Project Description: The proposed project involves the subdivision of an approximately 16.9-acre site into seven lots for custom single-family residences, as well as an additional lot for an internal road. The proposed lots would range in size from 1.2 to 4.3 acres with an average lot size of 2.3 acres. Project development would also involve extension of Bridle Trail Road, creation of internal streets to access the lots, extension of existing association-maintained bridle trails (horse riding trails), and additional improvements necessary to serve each parcel with public utilities. The project would include annexation of an approximately eight-acre parcel that is currently part of unincorporated Los Angeles County and is within the City’s Sphere of Influence. Consequently, the project would require a General Plan amendment to establish a land use designation and prezoning of the eight-acre parcel. The zone change would convert the existing County-designated parcel from Heavy Agriculture (A-2-2) to Residential-Agricultural Suburban (RA-S), and would require approval of annexation by the Local Agency Formation for the County of Los Angeles (LAFCO), the Hidden Hills Community Association (HHCA), and the City of Hidden Hills. Additional information on the project is available on the City’s website: https://hiddenhillscity.org. Potential Environmental Effects: Potentially significant environmental impacts have been identified in the following issue areas: Aesthetics, Air Quality, Biological Resources, Cultural Resources, Geology/Soils, Hydrology/Water Quality, Land Use/Planning, Noise, Recreation, Transportation/Traffic, and Tribal Cultural Resources. In addition, three alternative development scenarios, including the “no project” alternative, will be examined as part of the Environmental Impact Report. Public Scoping Meeting: The City of Hidden Hills, in its role as Lead Agency, will hold a public scoping meeting to provide an opportunity for the public and representatives of public agencies to address the scope of the Environmental Impact Report. The Scoping Meeting for the Environmental Impact Report for the project is scheduled for Thursday, April 20, 2017, at 6:00 p.m., at the following location: Hidden Hills City Council Chambers 6165 Spring Valley Road Hidden Hills, California 91302 Thirty-Day Comment Period: Do to the time limits mandated by State law, your response must be sent at the earliest possible date but not later than 30 days after receipt of this notice. The Notice of Preparation comment period begins on April 6, 2017 and ends on May 6, 2017. Please send your comments by regular mail or email no later than Friday, May 6, 2017, to: Dirk Lovett, City Engineer City of Hidden Hills 6165 Spring Valley Road Hidden Hills, CA 91302

Ashley Construction VTM 63567

Initial Study

prepared by City of Hidden Hills

165 Spring Valley Road Hidden Hills, California 91302

Contact: Dirk Lovett, City Engineer

prepared with the assistance of Rincon Consultants, Inc.

706 South Hill Street, Suite 1200 Los Angeles, California 90014

April 2017

Table of Contents

Initial Study i

Table of Contents

Initial Study ............................................................................................................................................. 1 1. Project Title ......................................................................................................................... 1 2. Lead Agency Name and Address ......................................................................................... 1 3. Contact Person and Phone Number ................................................................................... 1 4. Project Sponsor’s Name and Address ................................................................................. 1 5. Project Location .................................................................................................................. 1 6. Existing Setting and Surrounding Land Uses ....................................................................... 2 7. General Plan Designation .................................................................................................... 2 8. Zoning.................................................................................................................................. 2 9. Description of Project ......................................................................................................... 2 10. Required Approvals ............................................................................................................. 9

Environmental Factors Potentially Affected .........................................................................................10

Determination ......................................................................................................................................10

Environmental Checklist .......................................................................................................................13 1 Aesthetics ..........................................................................................................................13 2 Agriculture and Forest Resources .....................................................................................15 3 Air Quality .........................................................................................................................17 4 Biological Resources ..........................................................................................................21 5 Cultural Resources ............................................................................................................23 6 Geology and Soils ..............................................................................................................25 7 Greenhouse Gas Emissions ...............................................................................................29 8 Hazards and Hazardous Materials ....................................................................................35 9 Hydrology and Water Quality ...........................................................................................39 10 Land Use and Planning ......................................................................................................45 11 Mineral Resources ............................................................................................................47 12 Noise .................................................................................................................................49 13 Population and Housing ....................................................................................................51 14 Public Services ...................................................................................................................53 15 Recreation .........................................................................................................................57 16 Transportation ..................................................................................................................59 17 Tribal Cultural Resources ..................................................................................................63 18 Utilities and Service Systems ............................................................................................65 19 Mandatory Findings of Significance ..................................................................................69

References ............................................................................................................................................71 Bibliography ..................................................................................................................................71 Personal communication ..............................................................................................................74 List of Preparers ............................................................................................................................74

City of Hidden Hills


ii

Tables

Table 1 Existing Parcels Fully or Partially included in the Project Site ............................................ 1

Table 2 Lot Summary ....................................................................................................................... 2

Table 3 Health Effects Associated with Criteria Pollutants ...........................................................18

Table 4 Estimated Construction GHG Emissions ...........................................................................33

Table 5 Combined Annual GHG Emissions ....................................................................................34

Table 6 School Capacity and Project Student Generation .............................................................54

Figures

Figure 1 Regional Location ................................................................................................................ 3

Figure 2 Project Location .................................................................................................................. 4

Figure 3 Proposed Vesting Tentative Map ........................................................................................ 5

Figure 4 Proposed Grading Plan........................................................................................................ 7

Appendices

Appendix A Air Quality and Greenhouse Gas Emissions Modeling

Initial Study

Initial Study 1

Initial Study

1. Project Title


2. Lead Agency Name and Address

City of Hidden Hills 6165 Spring Valley Road Hidden Hills, CA 91302

3. Contact Person and Phone Number

Dirk Lovett, City Engineer (818) 888-9281

4. Project Sponsor’s Name and Address

Ashley Construction, Inc. 5300 Whitman Road Hidden Hills, CA 91302

5. Project Location

The project site consists of a 16.92-acre area that straddles the border between the City of Hidden Hills and the County of Los Angeles near Bridle Trail Road and Lasher Road. The site is partially bound by Bridle Trail Road to the south and Lasher Road to the east, with vacant lots and single-family properties along other portions of the project boundary. The site is comprised of four existing full parcels and portions of an additional four parcels, as shown in Table 1.

Table 1 Existing Parcels Fully or Partially included in the Project Site

Existing Parcels Fully included in the Project Site Existing Parcels Partially included in the Project Site

Assessor Parcel Number Jurisdiction Assessor Parcel Number Jurisdiction

2049-022-030 Los Angeles County 2049-014-009 City of Hidden Hills

2049-022-029 City of Hidden Hills 2049-014-012 City of Hidden Hills



Source: Los Angeles County 2017.



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Of the 16.92 acres to be subdivided, 8.96 acres are currently within the City of Hidden Hills and the remaining 7.96 acres are in unincorporated Los Angeles County. The unincorporated portion of the site is within the City’s existing Sphere of Influence and is proposed to be annexed into the City.

Figure 1 shows the location of the site in the region; Figure 2 shows the project site in its neighborhood context; Figure 3 shows the proposed Vesting Tentative Map; and Figure 4 shows the proposed grading plan.

6. Existing Setting and Surrounding Land Uses

The existing site consists of undeveloped vacant lots in a semi-rural setting. The site is surrounded by existing single-family residences along with their associated landscaped areas. Equestrian facilities and a pet cemetery are located to the south and east, respectively. Highway 101 (US 101) is located approximately 0.4 mile south of the site.

7. General Plan Designation

RA-1, Residential Agricultural, 1-Acre Minimum Lot Size

8. Zoning

RA-S Residential-Agriculture, Suburban (City of Hidden Hills), and A-2-2 Heavy Agriculture (County of Los Angeles)

9. Description of Project

The proposed project involves the subdivision of a 16.9-acre site into 7 lots (Lots 1-7) along with the grading necessary to establish building pads for custom single-family residences, as well as an additional lot (Lot A) for an internal access road. The proposed lots would range in size from 1.2 to 4.3 acres with an average lot size of 2.3 acres. Project development would also involve extension of Bridle Trail Road, creation of internal streets to access the lots, extension of existing association-maintained bridle trails (horse riding trails), and additional improvements necessary to serve each parcel with public utilities. Figure 3 above shows the vesting tentative map (VTM) for the project, including proposed improvements and Table 2 provides the area for each lot.

Table 2 Lot Summary

Lot No. Lot Area (acres)

1 1.249

2 2.086

3 1.,999

4 1.356

5 3.146

6 1.641

7 4.281

A 1.167

Initial Study

Initial Study 3

Figure 1 Regional Location



4

Figure 2 Project Location

Initial Study

Initial Study 5

Figure 3 Proposed Vesting Tentative Map



6

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Initial Study

Initial Study 7

Figure 4 Proposed Grading Plan

Source: Delane Engineering, October 2016



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The project would include annexation of an approximately 8.0 acre parcel that is currently part of unincorporated Los Angeles County and is within the City’s Sphere of Influence. Consequently, the project would require a General Plan amendment to establish a land use designation and prezoning of the 8.0 acre parcel. The zone change would convert the existing 8.0 acre County-designated parcel from Heavy Agriculture (A-2-2) to Residential-Agricultural Suburban RA-S, and would require approval of annexation by the Local Agency Formation for the County of Los Angeles (LAFCO), the Hidden Hills Community Association (HHCA), and the City of Hidden Hills. In 2013, the area proposed for annexation was previously incorporated into the “Craftsman’s Corner” preliminary annexation proceedings initiated by the City of Calabasas (Resolution No. 2013-1393).

Access and Parking

The project includes the construction of a private road (also referred to as Lot A) that travels north along the site’s western boundary and provides direct access to Lots 1 and 4, as well as access to driveways leading to the future development areas within Lots 5 and 6. The private road would be accessed from Bridle Trail Road. Properties on Lots 2 and 3 would be accessed via private driveways that would extend west from Lasher Road. Lot 7 would be accessed via a private driveway from the eastern terminus of Bridle Trail Road, which would be extended further east as part of the project.

Water Quality and Drainage

The project site is divided into two drainage areas: Area A includes Lots 1, 4, 5, 6, and 7; and Area B includes Lots 2 and 3. Runoff from Area A would drain into the proposed internal roadway (Lot A) and be conveyed to an infiltration system in the southwest corner of Lot 5. The infiltration would be designed to capture 100 percent of runoff generated during a design storm event. Any water exceeding the required treatment volume would flow into an existing natural channel located at the southeast corner of the site. Runoff in Area B would be treated prior to leaving the site. Due to the terrain and edge conditions in Area B, an infiltration system would not be feasible. Instead, either tree-well filters and/ or bio-retention basins (aka rain gardens) would be installed upon permitting and construction of single-family homes. These systems would be designed to treat 1.5 times the design storm event flow, but would not capture 100 percent of design volume. Treated water and runoff in exceedance of the treatment volume would drain to Lasher Road via the proposed driveways (Delane Engineering 2016a).

Construction

Site preparation would involve the removal of 19 existing trees on the site, including California pepper, coast live oak, valley oak, red gum, and Shamel ash species. The site, which has a hilly topography, would be graded and filled to create level building pads and graded driveways to the building pads. Figure 4 shows the proposed grading for the site with topographical contours. Total cut and fill is expected to balance onsite and would involve movement of about 167,179 cubic yards of material.

Initial Study

Initial Study 9

10. Required Approvals

The following entitlements are required for the proposed development:


Approval of Vesting Tentative Map Annexation of 8.0 acres from the County of Los Angeles General Plan Map Amendment and Zone Change to establish a land use designation and

prezoning of the 8.0 acre parcel Ridgeline Development Permit

Hidden Hills Community Association (HHCA) and Local Agency Formation for the

County of Los Angeles (LAFCO)

Approval of annexation of a 8.0 acre parcel from the County of Los Angeles

County of Los Angeles Sheriff’s Department

Review and approval of site plans for emergency access

County of Los Angeles Public Works Department

Review and approval of sewer and drainage facilities (sewer lines are owned by the City of Hidden Hills and maintained by the County of Los Angeles, and drainage facilities are owned and maintained by the County of Los Angeles)

Las Virgenes Municipal Water District

Review and approval of water and sewer infrastructure design in the District’s service area

Los Angeles County Fire Department

Review and approval of site plans for compliance with Uniform Fire Code and Department requirements

Other Approvals

Any other ancillary approvals/permits necessary to process the application and develop the project, including incorporation of the proposed development into the Hidden Hills Community Association



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Environmental Factors Potentially Affected

This project would potentially affect the environmental factors checked below, involving at least one impact that is “Potentially Significant” or “Potentially Significant Unless Mitigation Incorporated” as indicated by the checklist on the following pages.

■ Aesthetics □ Agriculture and Forest Resources

■ Air Quality

■ Biological Resources ■ Cultural Resources ■ Geology and Soils

□ Greenhouse Gas Emissions

□ Hazards and Hazardous Materials

■ Hydrology/Water Quality

■ Land Use/Planning □ Mineral Resources ■ Noise

□ Population/Housing □ Public Services ■ Recreation

■ Transportation/Traffic ■ Tribal Cultural Resources

□ Utilities/Service Systems

■ Mandatory Findings of Significance

Determination

Based on this initial evaluation:

□ I find that the proposed project COULD NOT have a significant effect on the environment, and a NEGATIVE DECLARATION will be prepared.

□ I find that although the proposed project could have a significant effect on the environment, there will not be a significant effect in this case because revisions to the project have been made by or agreed to by the project proponent. A MITIGATED NEGATIVE DECLARATION will be prepared.

■ I find that the proposed project MAY have a significant effect on the environment, and an ENVIRONMENTAL IMPACT REPORT is required.

□ I find that the proposed project MAY have a “potentially significant impact” or “potentially significant unless mitigated” impact on the environment, but at least one effect (1) has been adequately analyzed in an earlier document pursuant to applicable legal standards, and (2) has been addressed by mitigation measures based on the earlier analysis as described on attached sheets. An ENVIRONMENTAL IMPACT REPORT is required, but it must analyze only the effects that remain to be addressed.

□ I find that although the proposed project could have a significant effect on the environment, because all potential significant effects (a) have been analyzed adequately in an earlier EIR



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Environmental Checklist

Aesthetics

Initial Study 13


1 Aesthetics

Potentially Significant

Impact

Less than Significant

with Mitigation

Incorporated


Impact No Impact

Would the project:

a. Have substantial adverse effect on a scenic vista? ■ □ □ □

b. Substantially damage scenic resources, including but not limited to trees, rock outcroppings, and historic buildings along a state scenic highway? ■ □ □ □

c. Substantially degrade the existing visual character or quality of the site and its surroundings? ■ □ □ □

d. Create a new source of substantial light or glare that would adversely affect daytime or nighttime views in the area? □ □ ■ □

a. Would the project have a substantial adverse effect on a scenic vista?

b. Would the project substantially damage scenic resources, including, but not limited to, trees, rock outcroppings, and historic buildings in a state scenic highway?

c. Would the project substantially degrade the existing visual character or quality of the site and its surroundings?

The project would allow future development of seven single-family homes in a hilly area and would involve grading activities that would modify existing slopes to create level building pads in much of the site. The City of Hidden Hills Natural Resources Element Goal 4 states that “Significant natural land forms should be maintained during development” and Policy 4.1 states “Grading practices used within the City shall minimize potential safety hazards while maintaining aesthetic qualities and natural landforms.” In addition, Policy 4.3 states “Property owners should be encouraged to design homes to fit the natural terrain.” Because the project would involve grading of the ridge that has been designated a ridgeline resource in the Santa Monica Mountains North Area Plan, and because the City has goals and policies recommending preservation of the aesthetic qualities associated with natural landforms, the project has the potential to adversely affect this resource, and the potential aesthetic impacts of these actions will be further discussed in the EIR.



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The project site is bisected by a ridge that trends southeasterly. This ridge is partially located within the unincorporated 8.0-acre parcel that is proposed for annexation to the City. Ridgeline development on this parcel is restricted by the County of Los Angeles Santa Monica Mountains North Area Community Standards District Grading and Ridgeline Ordinance 2004-0072, which regulates development within 50 vertical feet and 50 horizontal feet of designated significant ridgelines. While the project is proposed for annexation to the City and this development standard would not specifically apply under City policies, visual impacts associated with this inconsistency pursuant to Los Angeles County hillside protection standards is considered potentially significant and will be further discussed in the EIR.

The project would also involve the removal of seven coast live oak and three valley oak trees, and may also involve removal of other species of trees greater than 36 inches in circumference, which are protected by the City’s Tree Preservation Ordinance. Therefore, impacts to trees of scenic value may be potentially significant and will be discussed further in the EIR.

POTENTIALLY SIGNIFICANT IMPACT

d. Would the project create a new source of substantial light or glare which would adversely affect day or nighttime views in the area?

The project would involve future development of seven residences on the project site. The average lot size under the current proposal would be 2.25 acres, which is consistent with surrounding residential development in the area. The project site is surrounded by existing residential development in all directions. All future development plans and specifications, including lighting, will be subject to approval by the City and the Community Association and will be consistent with lighting that exists in the project area. Existing lighting requirements, including height of light standards, type of lighting fixtures, shielding and lighting orientation would reduce lighting effects of the proposed future single-family residences to a less than significant level.

LESS THAN SIGNIFICANT IMPACT


Agriculture and Forest Resources

Initial Study 15

2 Agriculture and Forest Resources


Impact


with Mitigation

Incorporated


Impact No Impact

Would the project:

a. Convert Prime Farmland, Unique Farmland, Farmland of Statewide Importance (Farmland), as shown on maps prepared pursuant to the Farmland Mapping and Monitoring Program of the California Resources Agency, to non-agricultural use? □ □ □ ■

b. Conflict with existing zoning for agricultural use or a Williamson Act contract? □ □ ■ □

c. Conflict with existing zoning for or cause rezoning of forest land (as defined in Public Resources Code Section 12220(g)); timberland (as defined by Public Resources Code Section 4526); or timberland zoned Timberland Production (as defined by Government Code Section 51104(g))? □ □ □ ■

d. Result in the loss of forest land or conversion of forest land to non-forest use? □ □ □ ■

e. Involve other changes in the existing environment which, due to their location or nature, could result in conversion of Farmland to non-agricultural use? □ □ □ ■

a. Would the project convert Prime Farmland, Unique Farmland, Farmland of Statewide Importance (Farmland), as shown on the maps prepared pursuant to the Farmland Mapping and Monitoring Program of the California Resources Agency, to non-agricultural use?

The project site contains “Other Land” and “Urban/Built-up Land” as mapped on the California Important Farmland Finder (California Department of Conservation 2017). There are no areas of Prime Farmland, Unique Farmland, Farmland of Statewide Importance, Farmland of Local Importance or Farmland of Local Potential. The project would have no impact on farmland resources.

NO IMPACT



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b. Would the project conflict with existing zoning for agricultural use, or a Williamson Act contract?

None of the parcels that make up the project site are in Williamson Act contracts. Parcels within the incorporated City portion of the project site are zoned “Residential Agriculture Suburban” (RA-S). The approximate 8.0-acre parcel that is currently under County jurisdiction is zoned “Heavy Agriculture” (A-2-2). Upon annexation to the City, this parcel would be rezoned RA-S, consistent with current City zoning.

Nurseries; nursery stock; orchards; vineyards; the raising of field, tree, berry or bush crops; or vegetable or flower gardening on a commercial scale are permitted in the City’s RA-S designation. Thus, provided that the 8.0-acre unincorporated County parcel is annexed and rezoned to RA-S as proposed, future agricultural uses as delineated above would be allowed under the RA-S designation. The differences between the existing County zoning designation and the proposed City designation are summarized below.

The County of Los Angeles A-2-2 designation requires a minimum parcel size of two acres, whereas the City R-A-S designation requires a minimum parcel size of one acre.

The A-2-2 allows more intensive agricultural uses such as feedlots; the raising of cattle, sheep, horses, goats, poultry, birds, or earthworms; dairies, and manure spreading, whereas the RA-S designation only permits the following agricultural and horticultural uses: nurseries; nursery stock; orchards; vineyards; the raising of field, tree, berry, or bush crops; or vegetable or flower gardening on a commercial scale.

The proposed lots would average 2.25 acres. The land use and planning implications of the project are also discussed in Section IX, Land Use and Planning. However, for the purposes of evaluating the project’s effect on agricultural resources, the impact is considered less than significant because the project site is not under agricultural production, and agricultural operations would be permitted under both the existing and proposed zoning designations. No additional discussion is warranted in the EIR.


c. Conflict with existing zoning for or cause rezoning of forest land (as defined in Public Resources Code Section 12220(g)); timberland (as defined by Public Resources Code Section 4526); or timberland zoned Timberland Production (as defined by Government Code Section 51104(g))?

d. Result in the loss of forest land or conversion of forest land to non-forest use?

e. Would the project involve other changes in the existing environment, which, due to their location or nature, could result in conversion of Farmland to non-agricultural use?

The project would involve development of seven single-family homes on a 16.9-acre site surrounded by large-lot single-family homes and vacant parcels. Development of the project site would be infill residential development and would not facilitate conversion of forest land or timberland to non-agricultural uses or involve changes that could result in conversion of farmland to non-agricultural use. There would be no impact to forestland, timberland, or farmland and no additional discussion is warranted in the EIR.

NO IMPACT


Air Quality

Initial Study 17

3 Air Quality


Impact


with Mitigation

Incorporated


Impact No Impact

Would the project:

a. Conflict with or obstruct implementation of the applicable air quality plan? ■ □ □ □

b. Violate any air quality standard or contribute substantially to an existing or projected air quality violation? ■ □ □ □

c. Result in a cumulatively considerable net increase of any criteria pollutant for which the project region is non-attainment under an applicable federal or state ambient air quality standard (including releasing emissions which exceed quantitative thresholds for ozone precursors)? ■ □ □ □

d. Expose sensitive receptors to substantial pollutant concentrations? ■ □ □ □

e. Create objectionable odors affecting a substantial number of people? □ □ ■ □

The project site lies within the South Coast Air Basin (the Basin), which is under the jurisdiction of the South Coast Air Quality Management District (SCAQMD). As the local air quality management agency, the SCAQMD is required to monitor air pollutant levels to ensure that state and federal air quality standards are met and, if they are not met, to develop strategies to meet the standards. Depending on whether or not the standards are met or exceeded, the Basin is classified as being in “attainment” or “nonattainment.” The health effects associated with criteria pollutants upon which attainment of state and federal air quality standards is measured are described in Table 3.

The Basin is a non-attainment area for federal standards for ozone, PM2.5, and lead, as well the state standards for ozone, PM10 and PM2.5 (SCAQMD 2016). Thus, the Basin currently exceeds several state and federal ambient air quality standards and is required to implement strategies to reduce pollutant levels to recognized acceptable standards. This non-attainment status is a result of several factors, the primary ones being the naturally adverse meteorological conditions that limit the dispersion and diffusion of pollutants, the limited capacity of the local airshed to eliminate air pollutants, and the number, type, and density of emission sources in the Basin.



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Table 3 Health Effects Associated with Criteria Pollutants

Pollutant Adverse Effects

Ozone (1) Short-term exposures: pulmonary function decrements and localized lung edema in humans and animals, risk to public health implied by alterations in pulmonary morphology and host defense in animals; (2) long-term exposures: risk to public health implied by altered connective tissue metabolism and altered pulmonary morphology in animals after long-term exposures and pulmonary function decrements in chronically exposed humans; (3) vegetation damage; and (4) property damage.

Carbon monoxide (CO) Reduces oxygen delivery leading to: (1) Aggravation of chest pain (angina pectoris) and other aspects of coronary heart disease; (2) decreased exercise tolerance in persons with peripheral vascular disease and lung disease; (3) impairment of central nervous system functions; and (4) possible increased risk to fetuses.

Nitrogen dioxide (NO2) (1) Potential to aggravate chronic respiratory disease and respiratory symptoms in sensitive groups; (2) risk to public health implied by pulmonary and extra-pulmonary biochemical and cellular changes and pulmonary structural changes; and (3) contribution to atmospheric discoloration.

Sulfur dioxide (SO2) (1) Bronchoconstriction accompanied by symptoms that may include wheezing, shortness of breath, and chest tightness during exercise or physical activity in persons with asthma.

Suspended particulate matter (PM10)

(1) Excess deaths from short-term and long-term exposures; (2) excess seasonal declines in pulmonary function, especially in children; (3) asthma exacerbation and possible induction; (4) adverse birth outcomes including low birth weight; (5) increased infant mortality; (6) increased respiratory symptoms in children such as cough and bronchitis; and (7) increased hospitalization for both cardiovascular and respiratory disease (including asthma).a

Suspended particulate matter (PM2.5)

(1) Excess deaths from short- and long-term exposures; (2) excess seasonal declines in pulmonary function, especially in children; (3) asthma exacerbation and possibly induction; (4) adverse birth outcomes, including low birth weight; (5) increased infant mortality; (6) increased respiratory symptoms in children, such as cough and bronchitis; and (7) increased hospitalization for both cardiovascular and respiratory disease, including asthma.a

Note: A more detailed discussions on the health effects associated with exposure to suspended particulate matter can be found in the following documents: Office of Environmental Health Hazard Assessment, Particulate Matter Health Effects and Standard Recommendations, www.oehha.ca.gov/air/toxic_contaminants/PM10notice.html#may, May 9, 2002; and EPA, Air Quality Criteria for Particulate Matter, October 2004.

Source: US EPA 2016a

a. Would the project conflict with or obstruct implementation of the applicable air quality plan?

b. Would the project violate any air quality standard or contribute substantially to an existing or projected air quality violation?

c. Would the project result in a cumulatively considerable net increase of any criteria pollutant for which the project region is non-attainment under an applicable federal or state ambient air quality standard (including releasing emissions that exceed quantitative thresholds for ozone precursors)?

d. Would the project expose sensitive receptors to substantial pollutant concentrations?

The project would allow the future development of seven single-family residences on 16.9 acres. Grading would involve approximately 167,179 cubic yards of cut and fill that would balance onsite. The project has the potential to contribute to adverse air quality in a region that is in a state of non-


Air Quality

Initial Study 19

attainment for ozone, PM10, and PM2.5. The project’s potential for adverse impacts to air quality and sensitive receptors in the vicinity of the project is considered potentially significant and will be further evaluated in the EIR.


e. Would the project create objectionable odors affecting a substantial number of people?

The project would involve development of up to seven single-family residences in a primarily residential area. Residential uses typically do not create objectionable odors and are not identified in Figure 5-5, Land Uses Associated with Odor Complaints, of the 1993 SCAQMD CEQA Air Quality Handbook. Odors associated with residential development generally come from the operation of equipment during construction. Odors associated with construction machinery would be those of diesel machinery, which includes the smells of oil or diesel fuels. The odors would be limited to the time that construction equipment is operating. In addition, existing residences in the area are single-family homes on large lots, so odors would have a chance to disperse and would have minimal impacts on a limited number of people. Thus, construction odors would have less than significant impacts.

The project would involve the extension of existing bridle (horse riding) trails, which would be maintained by the Community Association. There is potential for odors associated with horse manure on the trail extensions. However, because the applicant would be required to comply with Community Association requirements and because the trails are maintained by the Community Association, trail extensions should not create objectionable odors affecting a substantial number of people. There would be a less than significant impact related to odors and further analysis of this issue in an EIR is not warranted.




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Biological Resources

Initial Study 21

4 Biological Resources


Impact


with Mitigation

Incorporated


Impact No Impact

Would the project:

a. Have a substantial adverse effect, either directly or through habitat modifications, on any species identified as a candidate, sensitive, or special status species in local or regional plans, policies, or regulations, or by the California Department of Fish and Wildlife or U.S. Fish and Wildlife Service? ■ □ □ □

b. Have a substantial adverse effect on any riparian habitat or other sensitive natural community identified in local or regional plans, policies, or regulations, or by the California Department of Fish and Wildlife or U.S. Fish and Wildlife Service? ■ □ □ □

c. Have a substantial adverse effect on federally protected wetlands as defined by Section 404 of the Clean Water Act (including, but not limited to, marsh, vernal pool, coastal, etc.) through direct removal, filling, hydrological interruption, or other means? ■ □ □ □

d. Interfere substantially with the movement of any native resident or migratory fish or wildlife species or with established native resident or migratory wildlife corridors, or impede the use of native wildlife nursery sites? ■ □ □ □

e. Conflict with any local policies or ordinances protecting biological resources, such as a tree preservation policy or ordinance? ■ □ □ □

f. Conflict with the provisions of an adopted Habitat Conservation Plan, Natural Community Conservation Plan, or other approved local, regional, or state habitat conservation plan? □ □ □ ■



22

a. Would the project have a substantial adverse effect, either directly or through habitat modifications, on any species identified as candidate, sensitive, or special status in local or regional plans, policies, or regulations, or by the California Department of Fish and Wildlife or the U.S. Fish and Wildlife Service?

b. Would the project have a substantial adverse effect on any riparian habitat or other sensitive natural community identified in local or regional plans, policies, or regulations, or by the California Department of Fish and Wildlife or U.S. Fish and Wildlife Service?

c. Would the project have a substantial adverse effect on federally protected wetlands as defined by Section 404 of the Clean Water Act (including, but not limited to, marsh, vernal pool, coastal, etc.) through direct removal, filling, hydrological interruption, or other means?

d. Would the project interfere substantially with the movement of any native resident or migratory fish or wildlife species or with established native resident or migratory wildlife corridors, or impede the use of native wildlife nursery sites?

e. Would the project conflict with any local policies or ordinances protecting biological resources, such as a tree preservation policy or ordinance?

The biological resource and tree assessments prepared for the project site (Lee Newman Design Group, Inc. 2015, Glenn Lukos Associates 2015, and GPA Consulting 2015) concluded that the site has the potential for sensitive biological species, such as the monarch butterfly, Cooper’s hawk, and several bat species. The report also concluded that the project would have the potential to impact the Southern Mixed Riparian Forest Community associated with the wetland area (450 feet long by 12 to 30 feet wide) at the southeastern corner of the site, which provides nesting habitat for song birds. Residences would not be built in the wetland area, but the proposed equestrian trail extension would cross riparian habitat and project development would remove some of the existing trees onsite, including oak trees protected by the City of Hidden Hills Tree Preservation Ordinance. Construction activities would also generate dust, erosion, and runoff that could impact the riparian community. Thus, impacts to biological resources are potentially significant and will be further examined in the EIR.


f. Would the project conflict with the provisions of an adopted Habitat Conservation Plan, Natural Community Conservation Plan, or other approved local, regional, or state habitat conservation plan?

The project site is not located in an area that is subject to an adopted conservation plan (California Department of Fish and Wildlife 2015, U.S. Fish and Wildlife Service 2017). No impact would occur.

NO IMPACT


Cultural Resources

Initial Study 23

5 Cultural Resources


Impact


with Mitigation

Incorporated


Impact No Impact

Would the project:

a. Cause a substantial adverse change in the significance of a historical resource as defined in §15064.5? □ □ □ ■

b. Cause a substantial adverse change in the significance of an archaeological resource as defined in §15064.5? ■ □ □ □

c. Directly or indirectly destroy a unique paleontological resource or site or unique geological feature? ■ □ □ □

d. Disturb any human remains, including those interred outside of formal cemeteries? ■ □ □ □

a. Would the project cause a substantial adverse change in the significance of a historical resource as defined in §15064.5?

The project site was previously assessed by W & S Consultants (2015) for impacts to historical resources. The project site does not contain any known historical resources (1903 and 1947 USGS Calabasas 15’ Quadrangles, (W & S Consultants 2015) and no evidence of historical resources were observed during a field reconnaissance or revealed during a record search (W & S Consultants 2015). The northeastern portion of the site previously identified as having an existing house, barn, and swimming pool is no longer included in the revised project site analyzed in this document. Therefore, there are no historical resources present on the site and there would be no impact. Further discussion of historical resources in an EIR is not warranted.

NO IMPACT

b. Would the project cause a substantial adverse change in the significance of an archaeological resource as defined in §15064.5?

d. Disturb any human remains, including those interred outside of formal cemeteries?

Previous cultural resource surveys of the project site have not identified archaeological sites at the project site or within a 0.125-mile radius of the property, or revealed evidence of archaeological materials at the project site (W & S Consultants 2015). Thus, there is no known potential to disturb known archaeological sites. Nevertheless, there is the potential that ground-disturbing activities during construction would uncover cultural resources and/or human remains. Therefore, impacts to cultural resources would be potentially significant and will be discussed further in the EIR.




24

c. Would the project directly or indirectly destroy a unique paleontological resource or site or unique geological feature?

The project site contains a significant ridgeline as identified in the Santa Monica Mountains North Area Plan Community Standards District. The project would alter the crest of this ridgeline. This is considered a potentially significant impact and will be further discussed in the Aesthetics and Land Use sections of the EIR.



Geology and Soils

Initial Study 25

6 Geology and Soils


Impact


with Mitigation

Incorporated


Impact No Impact

Would the project:

a. Expose people or structures to potentially substantial adverse effects, including the risk of loss, injury, or death involving: ■ □ □ □

1. Rupture of a known earthquake fault, as delineated on the most recent Alquist-Priolo Earthquake Fault Zoning Map issued by the State Geologist for the area or based on other substantial evidence of a known fault? ■ □ ■ □

2. Strong seismic ground shaking? ■ □ □ □

3. Seismic-related ground failure, including liquefaction? □ □ ■ □

4. Landslides? ■ □ □ □

b. Result in substantial soil erosion or the loss of topsoil? ■ □ □ □

c. Be located on a geologic unit or soil that is made unstable as a result of the project, and potentially result in on or offsite landslide, lateral spreading, subsidence, liquefaction, or collapse? ■ □ □ □

d. Be located on expansive soil, as defined in Table 1-B of the Uniform Building Code, creating substantial risks to life or property? ■ □ □ □

e. Have soils incapable of adequately supporting the use of septic tanks or alternative wastewater disposal systems where sewers are not available for the disposal of wastewater? □ □ □ ■



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a.1. Would the project expose people or structures to potential substantial adverse effects, including the risk of loss, injury, or death involving rupture of a known earthquake fault, as delineated on the most recent Alquist-Priolo Earthquake Fault Zoning Map issued by the State Geologist for the area or based on other substantial evidence of a known fault?

a.3. Would the project expose people or structures to potential substantial adverse effects, including the risk of loss, injury, or death involving seismic-related ground failure, including liquefaction?

A geological report, Geologic and Soils Engineering Exploration, indicates that the project site has little to no potential for adverse effects from surface rupture because the project site is not specifically underlain by known faults (J. Byer Group, Inc. 2006). In addition, the report indicates that liquefaction would not be a significant hazard. Liquefaction generally occurs in areas underlain by alluvium, which is in contact with a high water table or subject to inundation. When all of the pore spaces are filled with water, the soil floats and moves, and this action is called liquefaction. Portions of the project site are underlain by relatively thin isolated deposits of alluvium, overlain by colluvium and underlain by bedrock. Thus the potential for liquefaction is less than significant due to the makeup of the geologic strata that underlie the project site. Impacts pertaining to surface rupture and liquefaction would be less than significant. Additional discussion of these issues in the EIR is not warranted.


a.2. Would the project expose people or structures to potential substantial adverse effects, including the risk of loss, injury, or death involving strong seismic ground shaking?

The project site is located in a seismically active region. Moderate to strong earthquakes can occur on numerous local faults in the region, including the Malibu Coast fault, which is located five kilometers from the project site. Therefore, this impact is considered potentially significant and will be discussed further in the EIR.


a.4. Expose people or structures to potential substantial adverse effects, including the risk of loss, injury, or death involving landslides?

b. Would the project result in substantial soil erosion or the loss of topsoil?

c. Would the project be located on a geologic unit or soil that is made unstable as a result of the project, and potentially result in on or offsite landslide, lateral spreading, subsidence, liquefaction, or collapse?

The project site is underlain by the Modelo Formation, and a portion of the project site is intersected by a ridge. The site is characterized by shale and siltstone bedrock overlain in areas with alluvium and colluvium. The colluvium is indicative of steep slopes where chunks of rock and gravel erode and slide down to deposit on the sides and toe of the slope. In addition, there are two existing thin landslide areas along the northeastern side of the ridge. The 2006 geologic and soils report and the updated 2015 geologic and soils report indicate that the project site is suitable for the proposed development provided that recommendations for grading, slope stabilization, and project design are implemented (J. Byer Group, Inc. 2006, Solid Soils and Geologic Consultants 2014). The updated geological report prepared for the project will be used to analyze potential


Geology and Soils

Initial Study 27

impacts due to landslides, erosion, and unstable soil in the EIR. The impact is potentially significant and will be further addressed in the EIR.


d. Would the project be located on expansive soil, as defined in Table 1-B of the Uniform Building Code, creating substantial risks to life or property?

Site soils have been previously tested pursuant to standards outlined in ASTM D 4829-95 to determine the expansiveness of the soil (J. Byer Group, Inc. 2006). The tests revealed that the soils on the project site were moderately expansive (expansion index of 60) as rated in Table 18-1-B of the Uniform Building Code. The Uniform Building Code states that any soil with an expansion index of greater than 20 shall require design consideration. The 2006 geological report did not explicitly define soil expansion as a hazard requiring design consideration. Generally, hazards due to expansive soils are mitigated through incorporation of standard grading specifications and design requirements. Because the onsite soils are rated as having an expansion index of greater than 20, this impact is potentially significant and will be further discussed in the EIR.


e. Would the project have soils incapable of adequately supporting the use of septic tanks or alternative wastewater disposal systems where sewers are not available for the disposal of wastewater?

The project would not involve installation of septic or alternative waste water disposal systems because the project would connect to the municipal sewer system. Therefore, there would be no impact with respect to this issue and further discussion in an EIR is not warranted.

NO IMPACT



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Greenhouse Gas Emissions

Initial Study 29

7 Greenhouse Gas Emissions


Impact


with Mitigation

Incorporated


Impact No Impact

Would the project:

a. Generate greenhouse gas emissions, either directly or indirectly, that may have a significant impact on the environment? □ □ ■ □

b. Conflict with any applicable plan, policy, or regulation adopted to reduce the emissions of greenhouse gases? □ □ ■ □

Environmental Setting

Climate change is the observed increase in the average temperature of the earth’s atmosphere and oceans along with other substantial changes in climate (such as wind patterns, precipitation, and storms) over an extended period. Climate change is the result of numerous, cumulative sources of greenhouse gases (GHG) that contribute to the “greenhouse effect,” a natural occurrence that helps regulate the temperature of the planet. The majority of radiation from the sun hits the earth’s surface and warms it. The surface in turn radiates heat back towards the atmosphere, known as infrared radiation. Gases and clouds in the atmosphere trap and prevent some of this heat from escaping into space and re-radiate it in all directions. This process is essential to support life on Earth because it warms the planet by approximately 60° Fahrenheit. Emissions from human activities since the beginning of the industrial revolution (approximately 250 years ago) are adding to the natural greenhouse effect by increasing the gases in the atmosphere that trap heat and contribute to an average increase in the earth’s temperature.

GHGs occur naturally and from human activities. Human activities that produce GHGs include fossil fuel burning (coal, oil, and natural gas for heating and electricity; gasoline and diesel for transportation), methane generated by landfill wastes and raising livestock, deforestation activities, and some agricultural practices. GHGs produced by human activities include carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O), hydrofluorocarbons (HFC), perfluorocarbons (PFC), and sulfur hexafluoride (SF6). Since 1750, estimated concentrations of CO2, CH4, and N2O in the atmosphere have increased by over 36 percent, 148 percent, and 18 percent respectively, primarily due to human activity. Emissions of GHGs affect the atmosphere directly by changing its chemical composition. Changes to the land surface indirectly affect the atmosphere by changing the way in which the earth absorbs gases from the atmosphere. Potential impacts in California of global warming may include loss of snow pack, sea level rise, more extreme heat days per year, more high ozone days, more large forest fires, and more drought years (California Energy Commission [CEC] 2009).



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Regulatory Setting

California’s major initiative for reducing GHG emissions is outlined in Assembly Bill 32 (AB 32), the California Global Warming Solutions Act of 2006, signed into law in 2006. AB 32 codifies the statewide goal of reducing GHG emissions to 1990 levels by 2020 (essentially a 15 percent reduction below 2005 emission levels; the same requirement as under S-3-05), and requires the California Air Resources Board (CARB) to prepare a Scoping Plan that outlines the main state strategies for reducing GHGs to meet the 2020 deadline. In addition, AB 32 requires CARB to adopt regulations to require reporting and verification of statewide GHG emissions.

Senate Bill (SB) 97, signed in August 2007, acknowledges that climate change is an environmental issue that requires analysis in California Environmental Quality Act (CEQA) documents. In March 2010, the California Resources Agency (Resources Agency) adopted amendments to the state CEQA guidelines for the feasible mitigation of GHG emissions or the effects of GHG emissions. The adopted guidelines give lead agencies the discretion to set quantitative or qualitative thresholds for the assessment and mitigation of GHGs and climate change impacts.

Senate Bill (SB) 375, signed in August 2008, enhances the state’s ability to reach AB 32 goals by directing CARB to develop regional GHG emission reduction targets to be achieved from vehicles for 2020 and 2035. In addition, SB 375 directs each of the state’s 18 major Metropolitan Planning Organizations to prepare a “sustainable communities strategy” that contains a growth strategy to meet these emission targets for inclusion in the Regional Transportation Plan. On September 23, 2010, ARB adopted final regional targets for reducing GHG emissions from 2005 levels by 2020 and 2035.

In September 2016, Governor Brown signed SB 32, which requires California to reduce GHG emissions by 40 percent below 1990 levels by the year 2030. State guidance for meeting the SB 32 mandated reduction will be provided by CARB in its next Scoping Plan, which is anticipated to be finalized in 2017.

Methodology

Calculations of CO2, CH4, and N2O emissions are provided to identify the magnitude of potential project effects (see Impact Analysis below). The analysis focuses on CO2, CH4, and N2O because these make up 98.9 percent of all GHG emissions by volume (IPCC 2007) and are the GHG emissions that the project would emit in the largest quantities. Fluorinated gases, such as HFCs, PFCs, and SF6, were also considered for the analysis. However, because the project is primarily a residential development, the quantity of fluorinated gases would not be significant since fluorinated gases are primarily associated with industrial processes. Emissions of all GHGs are converted into their equivalent global warming potential (GWP) in terms of CO2 (CO2e). Minimal amounts of other GHGs (such as chlorofluorocarbons [CFCs]) would be emitted. However, these other GHG emissions would not substantially add to the total calculated CO2e amounts. Calculations are based on the methodologies discussed in the California Air Pollution Control Officers Association (CAPCOA) CEQA and Climate Change white paper (CAPCOA 2008) and included the use of the California Climate Action Registry (CCAR) General Reporting Protocol (CCAR 2009).

GHG emissions were estimated primarily using the California Emissions Estimator Model (CalEEMod) version 2016.3.1. CalEEMod estimates a project’s construction and operation emissions based on a number of project-specific parameters, such the project’s location, land uses, lot size, and area of various uses, and model defaults, such as emission factors for different vehicle types and construction phase-lengths. Most defaults are customizable to better reflect a project’s specific



Initial Study 31

attributes, if known. Emissions for the project were modeled assuming development of a 16.9-acre site with road and residential land uses, and a residential home size of 7,000 square feet, This square footage is an estimate of future house sizes on the site based on sizes of homes currently for sale in the Hidden Hills area, which range in size from about 4,000 square feet to 13,000 square feet (Zillow 2017).

It was conservatively assumed that buildout of the entire site would occur at once, rather than in phases. Due to the site’s hilly topography, the CalEEMod default for the grading phase length was adjusted from one month to three months. This reflects the fact that a longer grading period would be required due to the hilly topography of the site and is consistent with a prior analysis of construction emissions for a similar project at the project site presented in the 2007 Ashley Construction VTM 63567 EIR. The timing of the architectural coating phase was also revised to begin approximately halfway through the start of construction and end one week post-construction, which better reflects standard construction practices. In total, construction is estimated to take 19 months. It is estimated that the project would involve 167,179 cubic yards of cut and fill, which is expected to balance onsite. However, it was conservatively assumed that some export and import of material would occur. Specifically it was assumed that five percent of total cut and fill would be exported and five percent imported, as was previously assumed in the 2007 Ashley Construction VTM 63567 EIR.

In addition, the project was modeled assuming compliance with applicable air quality regulations. These include: SCAQMD Rule 403, which requires control of fugitive dust emissions including daily watering; Rule 1113, which requires a maximum reactive organic gases (ROG) content of 50 grams per liter for non-flat coatings; and Rule 445, which prohibits wood-burning devices in new development. CalEEMod assumptions and results are provided in Appendix A.

Construction Emissions

CAPCOA does not discuss whether any of the suggested threshold approaches adequately address impacts from temporary construction activity. As stated in the CEQA and Climate Change white paper, “more study is needed to make this assessment or to develop separate thresholds for construction activity” (CAPCOA 2008). Nevertheless, the SCAQMD has recommended amortizing construction-related emissions over a 30-year period in conjunction with the project’s operational emissions. In order to estimate the annual emissions that would result from construction activity associated with the project, GHGs from construction projects are quantified and amortized over a 30-year period. The amortized construction emissions are added to the annual average operational emissions and then compared to the applicable operational threshold.

Future construction at the site would generate temporary GHG emissions primarily due to the operation of construction equipment onsite as well as from vehicles transporting construction workers to and from the site and heavy trucks to export earth materials offsite. Site preparation and grading typically generate the greatest amount of emissions due to the use of grading equipment and soil hauling. CalEEMod provides an estimate of emissions associated with the construction period, based on parameters such as the duration of construction activity, area of disturbance, and anticipated equipment use during construction.

Operational Emissions

CalEEMod provides operational emissions of CO2, N2O, and CH4. Emissions from energy use include electricity and natural gas use. The emissions factors for natural gas combustion are based on the



32

U.S. Environmental Protection Agency’s (USEPA) AP-42 (Compilation of Air Pollutant Emissions Factors) and CCAR. Electricity emissions are calculated by multiplying the energy use times the carbon intensity of the utility district per kilowatt hour (CAPCOA 2016). The default electricity consumption values in CalEEMod include the CEC-sponsored California Commercial End Use Survey and Residential Appliance Saturation Survey studies.

Emissions associated with area sources, including consumer products, wood- and gas-burning fireplaces/ hearths, landscape maintenance, and architectural coating were calculated in CalEEMod and utilize standard emission rates from CARB, USEPA, and emission factor values provided by the local air district (CAPCOA 2016).

Emissions from waste generation were also calculated in CalEEMod and are based on the IPCC’s methods for quantifying GHG emissions from solid waste using the degradable organic content of waste (CAPCOA 2016). Waste disposal rates by land use and overall composition of municipal solid waste in California was primarily based on data provided by the California Department of Resources, Recycling, and Recovery (CalRecycle).

Emissions from water and waste water usage calculated in CalEEMod were based on the default electricity intensity from the CEC’s 2006 Refining Estimates of Water-Related Energy Use in California using the average values for Northern and Southern California.

For mobile sources, CO2 and CH4 emissions were quantified in CalEEMod. Because CalEEMod does not calculate N2O emissions from mobile sources, N2O emissions were quantified using the California Climate Action Registry General Reporting Protocol direct emissions factors for mobile combustion (CAPCOA 2008). The estimate of total daily trips associated with the project was based on the CalEEMod defaults, which were calculated and extrapolated to derive total annual mileage. Emission rates for N2O emissions were based on the vehicle mix output generated by CalEEMod and the emission factors found in the California Climate Action Registry General Reporting Protocol.

Significance Thresholds

CEQA Guidelines provide regulatory direction for the analysis and mitigation of GHG emissions appearing in CEQA documents, while giving lead agencies the discretion to set quantitative or qualitative thresholds for the assessment and mitigation of GHGs and climate change impacts. The vast majority of individual projects do not generate sufficient GHG emissions to create significant project-specific environment effects. However, the environmental effects of a project’s GHG emissions can contribute incrementally to cumulative environmental effects that are significant, contributing to climate change, even if an individual project’s environmental effects are limited (CEQA Guidelines, §15064[h][1]). The issue of a project’s environmental effects and contribution towards climate change typically involves an analysis of whether or not a project’s contribution towards climate change is cumulatively considerable. “Cumulatively considerable” means that the incremental effects of an individual project are significant when viewed in connection with the effects of past projects, other current projects, and probable future projects (CEQA Guidelines, §15064[h][1]).

The significance of GHG emissions may be evaluated based on locally adopted quantitative thresholds, or consistency with respect to a regional GHG emissions reduction plan (such as a Climate Action Plan). The City of Hidden Hills does not have a climate action plan, GHG reduction plan, or other plans or policies that address climate change (Office of Planning and Research [OPR] 2016). Although not yet adopted, the SCAQMD has a recommended quantitative GHG emissions threshold for all land use types of 3,000 metric tons (MT) CO2e/year (SCAQMD 2010). Because no GHG emissions thresholds have been adopted by the City, the significance of projected project GHG



Initial Study 33

emissions are evaluated based on the SCAQMD’s recommended/preferred option GHG emissions threshold for all land use types of 3,000 MT CO2e/year (SCAQMD 2010).

The SCAQMD threshold was designed to achieve regional GHG reductions consistent with the AB 32 statewide emission reduction target of 1990 emission levels by 2020. However, the threshold has not yet been updated to reflect the more stringent SB 32 statewide emission reduction target of 40 percent below 1990-level emissions by 2030. Thus, the project’s conformance with SB 32 is addressed below through a qualitative discussion of project emissions. A qualitative approach is considered sufficient for this project because it is not expected to contribute significant levels of long-term GHG emissions. The majority of a residential project’s operational GHG emissions are typically generated by vehicle trips and the development of seven new single-family homes would generate about 67 new trips per week day (Appendix A).

Impact Analysis

a. Would the project generate GHG emissions, either directly or indirectly, that may have a significant impact on the environment?

b. Would the project conflict with any applicable plan, policy, or regulation adopted for the purpose of reducing the emissions of greenhouse gases?

The project would generate GHG emissions associated with construction activities, as well as operation of seven new single-family homes. As shown in Table 4 below, full buildout of the project would generate approximately 735 MT CO2e from construction activities over the three-year construction period. If amortized over the estimated lifetime of the project (30 years), construction emissions would contribute approximately 25 MT CO2e per year.

Table 4 Estimated Construction GHG Emissions

Year Project Emissions (MT CO2e per year)

2017 301

2018 348

2019 86

Total 735

Total Amortized over 30 Years 24.5

Source: Appendix A CalEEMod worksheets.



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Table 5 Combined Annual GHG Emissions

Emission Source Project Emissions (MT CO2e per year)

Total Operational 187.7

Area 1.6

Energy 30.9

Solid Waste 4.1

Water 3.5

Mobile

CO2 and CH4 141.0

N2O 6.6

Construction 24.5

Total 212.2

Source: Appendix A CalEEMod and Mobile N2O worksheets.

Table 5 summarizes project operational GHG emissions and provides the total annual emissions generated by the project, including construction emissions. Project operations would generate approximately 190 MT CO2e annually once buildout is complete with the majority (75 percent) of emissions coming from mobile sources. In total, full buildout of the project would generate approximately 212 MT CO2e per year. This is about 93 percent below the SCAQMD significance threshold of 3,000 MT CO2e per year, which was calculated to achieve reductions in the Basin consistent with AB 32 target reductions. Thus, the project would be consistent with regional plans to reduce GHG emissions, as well as AB 32. In addition, because the project would generate such a minimal amount of GHG emissions, the project would not contribute significantly to cumulative GHG emissions and would not impede the attainment of the statewide reduction target, codified in SB 32, to reduce GHG emissions to 40 percent below 1990 levels by 2030. Therefore, project GHG emissions would not have a significant environmental impact and would not conflict with applicable plans and policies to reduce GHG emissions. Impacts would be less than significant. Further analysis in an EIR is not warranted.



Hazards and Hazardous Materials

Initial Study 35

8 Hazards and Hazardous Materials


Impact


with Mitigation

Incorporated


Impact No Impact

Would the project:

a. Create a significant hazard to the public or the environment through the routine transport, use, or disposal of hazardous materials? □ □ □ ■

b. Create a significant hazard to the public or the environment through reasonably foreseeable upset and accident conditions involving the release of hazardous materials into the environment? □ □ ■ □

c. Emit hazardous emissions or handle hazardous or acutely hazardous materials, substances, or waste within 0.25 mile of an existing or proposed school? □ □ □ ■

d. Be located on a site that is included on a list of hazardous material sites compiled pursuant to Government Code Section 65962.5 and, as a result, would it create a significant hazard to the public or the environment? □ □ □ ■

e. For a project located in an airport land use plan or, where such a plan has not been adopted, within two miles of a public airport or public use airport, would the project result in a safety hazard for people residing or working in the project area? □ □ □ ■

f. For a project near a private airstrip, would it result in a safety hazard for people residing or working in the project area? □ □ □ ■

g. Impair implementation of or physically interfere with an adopted emergency response plan or emergency evacuation plan? □ □ ■ □



36


Impact


with Mitigation

Incorporated


Impact No Impact

h. Expose people or structures to a significant risk of loss, injury, or death involving wildland fires, including where wildlands are adjacent to urbanized areas or where residences are intermixed with wildlands? □ □ ■ □

a. Would the project create a significant hazard to the public or the environment through the routine transport, use, or disposal of hazardous materials?

c. Would the project emit hazardous emissions or handle hazardous or acutely hazardous materials, substances, or waste within 0.25 mile of an existing or proposed school?

The project would allow for development of seven single-family residences and would not involve the routine transport, use, or disposal of hazardous materials. The nearest school (Round Meadow Elementary) is located at 5151 Round Meadow Road, approximately 0.75 mile southwest of the project site. Therefore, the project would not emit hazardous emissions or acutely hazardous materials within 0.25 mile of a school. The project would have no impact on these issues and further discussion in the EIR is not warranted.

NO IMPACT

b. Would the project create a significant hazard to the public or the environment through reasonably foreseeable upset and accident conditions involving the release of hazardous materials into the environment?

Typically, an upset hazard would be associated with buried underground tanks, soil contamination, or improperly abandoned oil wells. The project site and immediate area is semi-rural with low density residential development. Documented uses on the project site include historical grazing, equestrian trails, and brush clearance for fire protection. The historic aerial photos reviewed in a prior cultural resources investigation (W & S Consultants 2015) revealed no prior substantial development on the property. Therefore, there would be a less than significant impact with respect to reasonably foreseeable upset or accident conditions and further analysis in an EIR is not warranted.


d. Would the project be located on a site included on a list of hazardous material sites compiled pursuant to Government Code Section 65962.5 and, as a result, would it create a significant hazard to the public or the environment?

The following databases compiled pursuant to Government Code Section 65962.5 were checked (March 2017) for known hazardous materials contamination at or near (i.e., within 1,000 feet of) the project site:

USEPA Superfund Enterprise Management System database

California State Water Resources Control Board Geotracker search for leaking underground storage tanks and other cleanup sites


Hazards and Hazardous Materials

Initial Study 37

California Department of Toxic Substances Control (DTSC) Cortese list of Hazardous Waste and Substances Sites EnviroStor: Cleanup Site and Hazardous Waste Facilities Database

No Superfund sites were identified within 1,000 feet of the project site (US EPA 2016b). Similarly, no leaking underground storage tank cleanup sites, other hazardous materials cleanup sites, hazardous waste facilities, or other hazardous waste sites were identified within 1,000 feet of the project site (Geotracker 2017, Envirostor 2017). There would be no impact resulting from proximity to a hazardous materials site and further discussion in the EIR is not warranted.

NO IMPACT

e. For a project located in an airport land use plan or, where such a plan has not been adopted, within two miles of a public airport or public use airport, would the project result in a safety hazard for people residing or working in the project area?

f. For a project near a private airstrip, would it result in a safety hazard for people residing or working in the project area?

The project site is not located in an airport land use plan (Hidden Hills 1995) and the closest airport is the Van Nuys Airport, which is approximately 13 miles to the east. In addition, Santa Monica Airport is located approximately 15 miles to the southeast, Los Angeles International Airport is located 30 miles southeast, Burbank Airport is located 20 miles east, and Camarillo Airport is located approximately 20 miles northwest. The project would have no impact with respect to hazards associated with airport activities and further discussion in the EIR is not warranted.

NO IMPACT

g. Would the project impair implementation of or physically interfere with an adopted emergency response plan or emergency evacuation plan?

The project would result in the construction of seven single-family residences in a residential community. Vehicular access to and from these new residences would be provided from Bridle Trail Road, Lasher Road, and an internal street. The project would require a 240-foot extension of Bridle Trail Road to provide immediate access to Lot 1. The City has three designated emergency evacuation routes in the immediate area (Hidden Hills 1995): Long Valley Road, Spring Valley Road, and Round Meadow Road. Round Meadow Road is the closest evacuation route accessible from Bridle Trail Road. Project development would add about 22 residents (see Section 13, Population and Housing) that would utilize the Round Meadow Road emergency evacuation route. In addition, project site residents could ride on horseback or walk out of the city via adjacent trails and roadways. The project would not involve the development of structures that could potentially impair implementation of or physically interfere with an adopted emergency response plan or emergency evacuation plan. The design of new access points would be reviewed and approved by the Los Angeles County Fire Department to ensure that emergency access meets City standards. The project’s impact would be less than significant with respect to implementation of emergency evacuation/response plans and further discussion in the EIR is not warranted.




38

h. Would the project expose people or structures to a significant risk of loss, injury, or death involving wildland fires, including where wildlands are adjacent to urbanized areas or where residences are intermixed with wildlands?

Hidden Hills is semi-rural with single-family residences on 1 to 3 acre lots, and is situated in a larger area where undeveloped open spaces are intermixed with residential communities. The southern portion of the city, including a majority of the project site, is located in a Very High Fire Hazard Severity Zone (CAL FIRE 2017). As discussed above, emergency evacuation from the project site would be available from Bridle Trail Road and Round Meadow Road. However, the project site could also be evacuated on foot or on horseback via Lasher Road or roadways to the south.

The City contracts fire protection services from the Los Angeles County Fire Department. The primary engine company is Fire Station 68, located about two miles southeast of the site on the south side of US 101 at 24130 Calabasas Road. Equipment and personnel that are available to respond to brush fires include five engine companies, two helicopters, a bulldozer and crew (Hidden Hills, City of 1995). The City and the County have a mutual aid agreement with the City of Los Angeles in the event of the need for additional backup.

Project development would place seven single-family residences and about 22 people in a high fire hazard area. However, development of the project site would decrease the hazard to adjacent residents by developing a currently undeveloped grassland hillside with staggered building pads and landscaping at varying elevations for homes, and by providing better Fire Department access by extending roads and driveways further into the project site.

Since the city is partially located in a Very High Fire Hazard Severy Zone, it has an established Fire Prevention Program. The City’s Fire Prevention Program includes development review to ensure that structures are adequately separated, brush clearance is implemented, and that fire retardant materials are used in construction. Fire retardant Class-A roofs are required. The Fire Department sponsors an annual weed-abatement and brush clearance program that requires a 100-foot clearance of native brush, grass, and hazardous vegetation around structures to minimize the risk of fire. Therefore, with implementation of existing programs that are in place to manage and minimize wildfires, the project’s impact related to the risk of loss, injury, or death involving wildland fires would be less than significant and further discussion in the EIR is not warranted.



Hydrology and Water Quality

Initial Study 39

9 Hydrology and Water Quality


Impact


with Mitigation

Incorporated


Impact No Impact

Would the project:

a. Violate any water quality standards or waste discharge requirements? ■ □ □ □

b. Substantially deplete groundwater supplies or interfere substantially with groundwater recharge such that there would be a net deficit in aquifer volume or a lowering or the local groundwater table level (e.g., the production rate of pre-existing nearby wells would drop to a level that would not support existing land uses or planned uses for which permits have been granted)? □ □ ■ □

c. Substantially alter the existing drainage pattern of the site or area, including through the alteration of the course of a stream or river, in a manner that would result in substantial erosion or siltation on- or off-site? ■ □ □ □

d. Substantially alter the existing drainage pattern of the site or area, including the course of a stream or river, or substantially increase the rate or amount of surface runoff in a manner that would result in flooding on or offsite? ■ □ □ □

e. Create or contribute runoff water that would exceed the capacity of existing or planned stormwater drainage systems or provide substantial additional sources of polluted runoff? ■ □ □ □

f. Otherwise substantially degrade water quality? ■ □ □ □

g. Place housing in a 100-year flood hazard area as mapped on a federal Flood Hazard Boundary, Flood Insurance Rate Map, or other flood hazard delineation map? □ □ ■ □



40


Impact


with Mitigation

Incorporated


Impact No Impact

h. Place structures in a 100-year flood hazard area that would impede or redirect flood flows? □ □ ■ □

i. Expose people or structures to a significant risk of loss, injury, or death involving flooding, including that occurring as a result of the failure of a levee or dam? □ □ □ ■

j. Result in inundation by seiche, tsunami, or mudflow? □ □ ■ □

a. Would the project violate any water quality standards or waste discharge requirements?

c. Would the project substantially alter the existing drainage pattern of the site or area, including by altering the course of a stream or river, in a manner that would result in substantial erosion or siltation on or offsite?

d. Would the project substantially alter the existing drainage pattern of the site or area, including the alteration of the course of a stream or river, or substantially increase the rate or amount of surface runoff in a manner that would result in flooding on or offsite?

e. Would the project create or contribute runoff water that would exceed the capacity of existing or planned stormwater drainage systems or provide substantial additional sources of polluted runoff?

f. Would the project otherwise substantially degrade water quality?

The project would result in the future development of seven single-family residences on 16.9 acres. It would not involve development of industrial or commercial uses that would have the potential to create waste that would violate waste discharge requirements.

Approval of the project would place the project site in the City of Hidden Hills. As an incorporated area of Los Angeles County, Hidden Hills is required to comply with the requirements of the National Pollutant Discharge Elimination System (NPDES) Municipal Separate Storm Sewer System (MS4) Permit for stormwater and non-stormwater discharges in the coastal watersheds of Los Angeles County (CAS003001, Order No. R42012-0175). The project would be subject to MS4 permit requirements for new development because it would disturb more than one acre and add more than 10,000 square feet of impervious surface area. As such, the project is subject to County Low Impact Development (LID) best management practices, and required to retain 100 percent of stormwater quality design volume (i.e., the amount of stormwater generated during a design storm event) onsite through infiltration, evapotranspiration, stormwater runoff harvest and use, or a combination thereof unless it is demonstrated that it is technically infeasible to do so. If infeasibility for infiltration and stormwater capture is demonstrated, the project is required to achieve onsite biofiltration of 1.5 times the stormwater quality design volume that is not reliably retained onsite.

As discussed in the Stormwater Quality report prepared by Delane Engineering for the project in December 2016, the project would use infiltration and stormwater capture methods to meet NPDES



Initial Study 41

requirements on one portion of the site (Drainage Sub-Area A), and would utilize onsite bio-filtration methods in the remainder of the site (Sub-Area B and Lot 7) where the preferred methods to capture stormwater flow are technically infeasible (Delane Engineering 2016b). The project, being a single-family hillside development project, would additionally be required to implement the following measures:

Conserve natural areas Protect slopes and channels Provide storm drain system stenciling and signage Divert roof runoff to vegetated areas before discharge unless the diversion would result in slope

instability Direct surface flow to vegetated areas before discharge unless the diversion would result in

slope instability.

The project would also be required to comply with the NPDES General Construction Permit, which applies to construction sites that disturb one acre or more. Pursuant to permit requirements, the project would be required to file a Notice of Intent and submit and implement a Stormwater Pollution Plan to limit erosion, sediment release, and stormwater pollution during construction through the application of best management practices.

Because the project would incorporate stormwater capture, infiltration, and retention systems to comply with federal, City, and County requirements to manage stormwater, the project would not result in a level of runoff that would exceed the capacity of existing and proposed stormwater drainage systems. However, the project would involve substantial modification of the site topography, including flattening of ridges, to create level building pads and otherwise prepare the site for development. This would alter drainage patterns onsite in a manner that would potentially increase runoff, erosion, and sedimentation on and offsite, and potentially affect water quality. Therefore, impacts to water quality would be potentially significant and will be further discussed in the EIR.


b. Would the project substantially deplete groundwater supplies or interfere substantially with groundwater recharge such that there would be a net deficit in aquifer volume or a lowering or the local groundwater table level (e.g., the production rate of pre-existing nearby wells would drop to a level that would not support existing land uses or planned uses for which permits have been granted)?

The Las Virgenes Municipal Water District (LVMWD) provides potable and recycled water to Hidden Hills. The majority of LVMWD imported water comes from the Metropolitan Water District, which in turn obtains water through the State Water Project and Colorado River. LVMWD relies entirely on imported water for its potable water supplies because local groundwater supplies are of poor quality (LVMWD 2016). Imported groundwater is used to augment recycled water supplies. Because groundwater would account for a nominal amount of the site’s water usage, the project would not substantially deplete groundwater supplies. Impacts would be less than significant and further discussion in the EIR is not warranted.




42

g. Would the project place housing in a 100-year flood hazard area as mapped on a federal Flood Hazard Boundary, Flood Insurance Rate Map, or other flood hazard delineation map?

h. Would the project place in a 100-year flood hazard area structures that would impede or redirect flood flows?

The project site is located in an area that is covered by two different Flood Insurance Rate Maps (FIRM panels). Most of the site lies in FIRM Panel No. 06037C1267F (September 2008), while the westernmost portion of the site lies in FIRM Panel No. 06111C1020E (January 2010). The majority of the site is mapped as Zone D, which indicates areas where flood hazards are undetermined, but possible. The portion of the site that lies in unincorporated Los Angeles County is mapped as an area outside the 500-year flood plain (Zone X, other areas).

Topographic maps of the site indicate that lower areas (elevation of about 975 feet) are present in the southernmost and northernmost portions of the project site. However, structures would be built on graded pads at higher elevations. The pads for the lots will be constructed at approximately the following elevations, given in feet above mean sea level (msl):

Lot 1: 1,062 Lot 2: 1,008 Lot 3: 1,040 Lot 4: 1,075 Lot 5: 1,085 Lot 6: 1,080 Lot 7: 1,010

Therefore, based on review of the proposed site plans, site topography, and flood hazard maps, the project would have a less than significant impact with respect to placing housing or structures in a 100-year floodplain and further discussion in the EIR is not warranted.


i. Would the project expose people or structures to a significant risk of loss, injury, or death involving flooding including that occurs as a result of the failure of a levee or dam?

The project site is not located in an area subject to inundation by dams or levees. The closest operational dam is the Sepulveda Dam, located approximately ten miles east of (and at a lower elevation than) the project site. The Chatsworth Reservoir, located approximately four miles from the site, is no longer in use. Project development would have no impact with respect to loss, injury, or death resulting from levee or dam failure and further discussion in the EIR is not warranted.

NO IMPACT

j. Would the project result in inundation by seiche, tsunami, or mudflow?

The project site is located approximately 10 miles inland from the Pacific Ocean at elevations ranging from about 975 to 1,130 feet above mean sea level. Therefore, the potential for tsunami hazard is less than significant.

Seiches occur in large standing water bodies as waves that extend beyond the normal high water mark. The closest landlocked body of water is the Encino Reservoir, which is located approximately seven miles southeast of the project site. Thus, there is a less than significant impact with respect to the potential for seiche damage.



Initial Study 43

The project site is currently exposed to landslide areas along the northern side of the ridge that traverses the project site. However, following the grading that would be part of the development of the project, these unstable areas would no longer exist, and the ridge would be graded to create building pads, thereby reducing the potential for mudslide damage to proposed and surrounding homes. Mudslide damage could also occur if it originated offsite and inundated the proposed residences. However, as previously mentioned, the building pads for the proposed developments are at elevations that are at least 30 to 100 feet above the low-lying areas. Thus, there would be a less than significant impact with respect to hazards from tsunami, seiche, or mudslide and further discussion in the EIR is not warranted.




44



Land Use and Planning

Initial Study 45

10 Land Use and Planning


Impact


with Mitigation

Incorporated


Impact No Impact

Would the project:

a. Physically divide an established community? □ □ □ ■

b. Conflict with any applicable land use plan, policy, or regulation of an agency with jurisdiction over the project (including but not limited to the general plan, specific plan, local coastal program, or zoning ordinance) adopted for the purpose of avoiding or mitigating an environmental effect? ■ □ □ □

c. Conflict with an applicable habitat conservation plan or natural community conservation plan? □ □ □ ■

a. Would the project physically divide an established community?

The project would not physically divide an established community. The project is an infill development that would link two existing residential areas of the city. Annexation of the County designated parcel, which is in the City’s existing Sphere of Influence, would eliminate this island of County land. The project would have no impact on this issue and further discussion in the EIR is not warranted.

NO IMPACT

b. Would the project conflict with any applicable land use plan, policy, or regulation of an agency with jurisdiction over the project (including but not limited to the general plan, specific plan, local coastal program, or zoning ordinance) adopted for the purpose of avoiding or mitigating an environmental effect?

The project involves a vesting tentative map, rezoning, a General Plan Amendment, and annexation. City approval of the project would require a consistency determination with the City’s General Plan and a consistency determination with the County of Los Angeles North Area Plan. As discussed under Section 1, Aesthetics, and Section 2, Agricultural Resources, the project may be inconsistent with land use policies contained in the City of Hidden Hills General Plan and the Santa Monica Mountains North Area Plan Community Standards District. These are potentially significant impacts that will be further evaluated in the EIR.




46

c. Would the project conflict with an applicable habitat conservation plan or natural community conservation plan?

The project site is not part of a habitat or natural community conservation plan (CDFW 2015, USFWS 2017), and the project would therefore have no impact with respect to habitat or natural communities conservation plans and further discussion in the EIR is not warranted.

NO IMPACT


Mineral Resources

Initial Study 47

11 Mineral Resources


Impact


with Mitigation

Incorporated


Impact No Impact

Would the project:

a. Result in the loss of availability of a known mineral resource that would be of value to the region and the residents of the state? □ □ □ ■

b. Result in the loss of availability of a locally important mineral resource recovery site delineated on a local general plan, specific plan, or other land use plan? □ □ □ ■

a. Would the project result in the loss of availability of a known mineral resource that would be of value to the region and the residents of the state?

b. Would the project result in the loss of availability of a locally important mineral resource recovery site delineated on a local general plan, specific plan, or other land use plan?

The project site is underlain by the Modelo Formation with deposits of shale and siltstone (J. Byer Group, Inc. 2006). No mineral resources of value are known to exist at the project site. Therefore, the project would not result in extraction of mineral resources or the loss of a mineral resource recovery site. There would be no impact and further discussion is not warranted in an EIR.

NO IMPACT



48



Noise

Initial Study 49

12 Noise


Impact


with Mitigation

Incorporated


Impact No Impact

Would the project result in:

a. Exposure of persons to or generation of noise levels in excess of standards established in the local general plan or noise ordinance, or applicable standards of other agencies? ■ □ □ □

b. Exposure of persons to or generation of excessive groundborne vibration or groundborne noise levels? ■ □ □ □

c. A substantial permanent increase in ambient noise levels above those existing prior to implementation of the project? ■ □ □ □

d. A substantial temporary or periodic increase in ambient noise levels in the project vicinity above those existing prior to implementation of the project? ■ □ □ □

e. For a project located in an airport land use plan or, where such a plan has not been adopted, within two miles of a public airport or public use airport, would the project expose people residing or working in the project area to excessive noise levels? □ □ □ ■

f. For a project near a private airstrip, would it expose people residing or working in the project area to excessive noise? □ □ □ ■

a. Would the project result in exposure of persons to or generation of noise levels in excess of standards established in the local general plan or noise ordinance, or applicable standards of other agencies?

b. Would the project result in exposure of persons to or generation of excessive groundborne vibration or groundborne noise levels?

c. Would the project result in a substantial permanent increase in ambient noise levels above levels existing without the project?



50

d. Would the project result in a substantial temporary or periodic increase in ambient noise levels in the project vicinity above levels existing without the project?

The project would facilitate development of the seven single-family homes in a low-density residential area. Construction of these new houses would generate temporary noise due to the use of heavy equipment associated with grading and construction. In addition, development of new residences would generate new vehicle trips on adjacent roadways that would serve the project site and contribute to an increase in ambient noise, as well as onsite noise once the residences were constructed and occupied. Lastly, the project would be constructed approximately 0.33 mile from US 101, which is the primary source of roadway noise in the vicinity of the project site. Topographic modification included as part of the project could reduce the buffering effects caused by the existing intervening ridgeline, potentially exposing the project site or nearby areas to increased traffic noise. These impacts are potentially significant and will be further evaluated in the EIR.


e. For a project located in an airport land use plan or, where such a plan has not been adopted, within two miles of a public airport or public use airport, would the project expose people residing or working in the project area to excessive noise levels?

f. For a project in the vicinity of a private airstrip, would the project expose people residing or working in the project area to excessive noise?

As discussed under Section 12, Hazards and Hazardous Materials, the project site is not located in close proximity to an airport. The closest airport (Van Nuys Airport) is located approximately 13 miles to the east. Therefore, there would be no impact with respect to exposure of project area residents and workers to airport related noise and further discussion in the EIR is not warranted.

NO IMPACT


Population and Housing

Initial Study 51

13 Population and Housing


Impact


with Mitigation

Incorporated


Impact No Impact

Would the project:

a. Induce substantial population growth in an area, either directly (e.g., by proposing new homes and businesses) or indirectly (e.g., through extension of roads or other infrastructure)? □ □ ■ □

b. Displace substantial amounts of existing housing, necessitating the construction of replacement housing elsewhere? □ □ □ ■

c. Displace substantial numbers of people, necessitating the construction of replacement housing elsewhere? □ □ □ ■

a. Would the project induce substantial population growth in an area, either directly (for example, by proposing new homes and businesses) or indirectly (for example, through extension of roads or other infrastructure)?

The project would facilitate development of seven single-family residences. Thus, based on Department of Finance 2016 estimates for the average household size in Hidden Hills, the project would accommodate approximately 22 new residents (i.e., 7 units x 3.21 persons/unit) (California Department of Finance 2016). The 2016 California Department of Finance population estimate for the city is 1,872 persons and the Southern California Association of Governments projects that the population of Hidden Hills will increase to 2,000 by 2040 (Southern California Association of Governments 2015). Thus, the project would not cause the city to exceed projected population growth for the area and would not directly induce substantial population growth.

The project would not indirectly induce substantial population growth by facilitating additional development in the area because the project is essentially an infill project; all other areas immediately surrounding the project site have either been developed or are approved for pending development. The project would thus have a less than significant impact with respect to inducing substantial population growth and further discussion in the EIR is not warranted.


b. Would the project displace substantial numbers of existing housing, necessitating the construction of replacement housing elsewhere?

c. Would the project displace substantial numbers of people, necessitating the construction of replacement housing elsewhere?



52

The project would allow for the development of seven single-family homes on a vacant 17-acre site. The project would not displace substantial numbers of existing housing or people. There would be no impact. Further discussion in an EIR is not warranted.

NO IMPACT


Public Services

Initial Study 53

14 Public Services


Impact


with Mitigation

Incorporated


Impact No Impact

Would the project:

a. Result in substantial adverse physical impacts associated with the provision of new or physically altered governmental facilities, or the need for new or physically altered governmental facilities, the construction of which could cause significant environmental impacts, in order to maintain acceptable service ratios, response times or other performance objectives for any of the public services:

1 Fire protection? □ □ ■ □

2 Police protection? □ □ ■ □

3 Schools? □ □ ■ □

4 Parks? □ □ ■ □

5 Other public facilities? □ □ ■ □

a.1. Would the project result in substantial adverse physical impacts associated with the provision of new or physically altered governmental facilities, or the need for new or physically altered governmental facilities, the construction of which could cause significant environmental impacts, in order to maintain acceptable service ratios, response times or other performance objectives for fire protection?

The project would result in the development of seven single-family residences and is anticipated to generate 22 new residents (based on an average of 3.21 residents/household and an increase of seven homes). Fire service is provided by the County of Los Angeles. The nearest fire station is Fire Station 68, located approximately two miles southeast of the project site at 24130 Calabasas Road, south of US 101. A discussion of fire service for wildfire hazards is discussed under Section 12, Hazards and Hazardous Materials.

The project would need to be designed to provide adequate fire access and water supply pressure. However, the addition of these seven proposed residences adjacent to existing serviced residential properties is not anticipated to cause demand that would require new or physically altered fire-fighting facilities (Bagwell 2017). Therefore, the impact would be less than significant.




54

a.2. Would the project result in substantial adverse physical impacts associated with the provision of new or physically altered governmental facilities, or the need for new or physically altered governmental facilities, the construction of which could cause significant environmental impacts, in order to maintain acceptable service ratios, response times or other performance objectives for police protection?

Police protection is provided by the Los Angeles County’s Sheriff’s Department. The Malibu/Lost Hills Station of the Los Angeles County’s Sheriff’s Department is responsible for providing general law and traffic-related enforcement service to the City of Hidden Hills under the provisions of a contract between the two agencies. This station is located approximately 4.5 miles southwest of the project site at 27050 Agoura Road in Agoura, west of the intersection of Agoura Road and Lost Hills Road.

The project would result in the development of seven single-family residences and is anticipated to accommodate approximately 22 new residents. This would incrementally increase the population being served by the Los Angeles County’s Sheriff’s Department and therefore would not require the construction of new facilities or physical alteration of existing facilities to accommodate this change. Therefore, impacts resulting from the need for additional police services would be less than significant and further analysis in an EIR is not warranted.


a.3. Would the project result in substantial adverse physical impacts associated with the provision of new or physically altered governmental facilities, or the need for new or physically altered governmental facilities, the construction of which could cause significant environmental impacts, in order to maintain acceptable service ratios, response times or other performance objectives for schools?

The project would result in the development of seven single-family residences and is anticipated to generate 22 new residents (based on an average of 3.21 residents/household and an increase of seven homes). The City of Hidden Hills is located in the Las Virgenes Unified School District (LVUSD). There are a total of eight elementary schools, two junior high schools, two high schools, one alternative school (K-8), and one preschool in the LVUSD (LVUSD 2017). Of these schools, Round Meadow Elementary, A.E. Wright Middle School, and Calabasas High School are the schools closest to the project site. However, some residents may be directed to other nearby elementary schools (e.g. Lupin Hill Elementary School or Bay Laurel Elementary School) (Beder 2017). Capacity at these three schools is shown in Table 2, along with current enrollment statistics (Beder 2017).

Table 6 School Capacity and Project Student Generation

School Grades Design

Capacity1 Enrollment

1

Available Capacity

Project Generated Students

2

Round Meadow Elementary School K-5 562 615 -53 2

A.E. Wright Middle School 6-8 783 877 -94 1

Calabasas High School 9-12 1,620 1,986 -366 1 1 Personal communication, Kathy Petrash, January 2007 2 Based on single-family home generation rates of 0.24 for K-5, 0.12 for 6-8, and 0.18 for 9-12, LVUSD Personal Communication, Kelly Beder, LVUSD, 2017.

Based on LVUSD student generation rates for single-family homes, the project would add two grade school students, one middle school student, and one high school student. As shown in Table 3, all three schools closest to the project site are currently operating over capacity. However, the


Public Services

Initial Study 55

mechanism by which funds are allocated to expand facilities is already in place and implemented through payment of developer fees. Section 65995 (3)(h) of the California Government Code (Senate Bill 50, chaptered August 27,1998) states that the payment of statutory fees “…is deemed to be full and complete mitigation of the impacts of any legislative or adjudicative act, or both, involving but not limited to the planning, use, or development of real property, or any change in governmental organization or reorganization.”

Therefore, although the project would generate students into a district where schools are already over capacity, the project’s impact with respect to school enrollment, after the payment of standard development impact fees, is less than significant under CEQA and further discussion in the EIR is not warranted.


a.4. Would the project result in substantial adverse physical impacts associated with the provision of new or physically altered governmental facilities, or the need for new or physically altered governmental facilities, the construction of which could cause significant environmental impacts, in order to maintain acceptable service ratios, response times, or other performance objectives for parks?

See discussion under Section 15, Recreation.


a.5. Would the project result in substantial adverse physical impacts associated with the provision of new or physically altered governmental facilities, or the need for new or physically altered governmental facilities, the construction of which could cause significant environmental impacts, in order to maintain acceptable service ratios, response times, or other performance objectives for other public facilities?

The project would result in the development of seven single-family residences and is anticipated to generate 22 new residents (based on an average of 3.21 residents/household and an increase of seven homes).

In the City of Hidden Hills, many community facilities, generally considered public facilities in other jurisdictions, are owned and maintained by the Hidden Hills Community Association. In the city, these facilities include bridle (horse riding) trails, roads, equestrian facilities, community tennis courts, gates, and other similar amenities. The project would incrementally increase usage of these community facilities. However, the project would be required to annex into the Community Association, which owns and maintains these facilities. Annexation to the Community Association would require payment of fees contributed for the purpose of maintenance. Therefore, through payment of fees and annexation to the Community Association, the potential for adverse effects to other public facilities would be less than significant and further discussion in the EIR is not warranted.




56



Recreation

Initial Study 57

15 Recreation


Impact


with Mitigation

Incorporated


Impact No Impact

Would the project:

a. Increase the use of existing neighborhood and regional parks or other recreational facilities such that substantial physical deterioration of the facility would occur or be accelerated □ □ ■ □

b. Include recreational facilities or require the construction or expansion of recreational facilities which might have an adverse physical effect on the environment? ■ □ □ □

a. Would the project increase the use of existing neighborhood and regional parks or other recreational facilities such that substantial physical deterioration of the facility would occur or be accelerated?

The city currently has more than 35 miles of bridle (horse riding) trails and three riding rings. City bridle trails are overseen by the Community Association Trails Committee, which is in charge of the expansion and maintenance of these community recreational resources. Other public recreational facilities include a community hall with tot lots, a theater, a meeting room, two sets of tennis courts, and one pool. Playground facilities are also located at the Round Meadow Elementary School playground near the city entrance on Round Meadow Road.

The project would develop seven single-family residences that would accommodate approximately 22 residents. Project site residents would be anticipated to utilize existing community recreational facilities. The addition of 22 residents is not expected to significantly increase the use of existing neighborhood and regional parks such that substantial physical deterioration of the facilities would occur as the project would only nominally increase the Hidden Hills population by about one percent (current population = about 1,872). In addition, residences on the project site would be custom homes on large lots and would likely have extensive amenities onsite. Therefore, impacts to existing recreational facilities would be less than significant and further evaluation in an EIR is not warranted.


b. Does the project include recreational facilities or require the construction or expansion of recreational facilities which might have an adverse physical effect on the environment?

The city is an equestrian-oriented community and the project would include development of bridle trails through the project site that would connect to existing bridle trails. A portion of the bridle trail would cross through the wetland area and associated riparian habitat in the southeast corner of the site. Thus, development of the trail could result in adverse physical effects to the environment and



58

impacts are potentially significant. These impacts will be evaluated further in the EIR in the analysis of impacts to biological resources and hydrology and water quality.



Transportation

Initial Study 59

16 Transportation


Impact


with Mitigation

Incorporated


Impact No Impact

Would the project:

a. Conflict with an applicable plan, ordinance or policy establishing a measure of effectiveness for the performance of the circulation system, taking into account all modes of transportation, including mass transit and non-motorized travel and relevant components of the circulation system, including but not limited to intersections, streets, highways, and freeways, pedestrian and bicycle paths, and mass transit? ■ □ □ □

b. Conflict with an applicable congestion management program, including, but not limited to level of service standards and travel demand measures, or other standards established by the county congestion management agency for designated roads or highways? ■ □ □ □

c. Result in a change in air traffic patterns, including either an increase in traffic levels or a change in location that results in substantial safety risks? □ □ □ ■

d. Substantially increase hazards due to a design feature (e.g., sharp curves or dangerous intersections) or incompatible use (e.g., farm equipment)? ■ □ □ □

e. Result in inadequate emergency access? ■ □ □ □

f. Conflict with adopted policies, plans, or programs regarding public transit, bikeways, or pedestrian facilities, or otherwise substantially decrease the performance or safety of such facilities? □ □ ■ □



60

a Would the project conflict with an applicable plan, ordinance or policy establishing a measure of effectiveness for the performance of the circulation system, taking into account all modes of transportation, including mass transit and non-motorized travel and relevant components of the circulation system, including but not limited to intersections, streets, highways, and freeways, pedestrian and bicycle paths, and mass transit?

b. Would the project conflict with an applicable congestion management program, including, but not limited to level of service standards and travel demand measures, or other standards established by the county congestion management agency for designated roads or highways?

d. Would the project substantially increase hazards due to a design feature (e.g., sharp curves or dangerous intersections) or incompatible use (e.g., farm equipment)?

The project site is located within the boundaries of Hidden Hills, which requires gate access to enter. The majority of roadways in the city are privately owned and maintained by the Hidden Hills Community Association. Traffic on the local street system is limited to those who live in, or guests of those living in, the city. The streets serve a mix of vehicles, bicycles, horses and pedestrians (Hidden Hills 1995).

The project would enable the development of seven single-family homes and involve the construction of a new road on the site to provide access to Lots 1, 4, 5, and 6. Operation of the future residences would generate new vehicle trips to and from the site. The increase in vehicle trips would contribute to traffic on area roadways. In addition, the new road onsite and project-generated traffic could potentially present new roadway hazards. Impacts to the area’s circulation system and roadways are potentially significant and will be further analyzed in the EIR.

Impacts will be analyzed using a traffic impact analysis that is being prepared for the project. While the City of Hidden Hills has not adopted thresholds for intersection capacity utilization increases or level of service increases to determine when a significant impact has occurred, the City’s CEQA guidelines state in Appendix C, Item (l) that a significant effect with respect to traffic occurs when a project “Cause(s) an increase in traffic which is substantial in relation to the existing traffic load and capacity of the street system.” Previous EIRs certified by the City have used level of service C as the minimum acceptable standard for the streets inside the city and level of service D as the minimum acceptable standard for freeway intersections (Hidden Hills 2005).


c. Would the project result in a change in air traffic patterns, including either an increase in traffic levels or a change in location that results in substantial safety risks?

As previously discussed in Section 12, Noise, and Section 8, Hazards and Hazardous Materials, the project site is not located in the vicinity of an airport. The project would have no impact on air traffic patterns and further analysis in an EIR is not warranted.

NO IMPACT

e. Would the project result in inadequate emergency access?

The project involves development of private drives, a new internal roadway (Lot A), and extension of the existing Bridle Trail Road. Some of the drives will be constructed on hill slopes, which can pose access problems for emergency crews. The project design currently includes fire department turnarounds on all lots that are accessed by private roads (Lots 2, 3, 5, 6, and 7) while the remaining lots (Lots 1 and 2) are accessible from the main roadway on Lot A, which includes a cul-de-sac. The


Transportation

Initial Study 61

project design would be evaluated by the Los Angeles County Fire department for emergency access. The project is consistent with adjoining and other similar development in the vicinity and it is anticipated that impacts to emergency access can be alleviated through specific design measures, but in order to adequately analyze this potentially significant impact, this topic requires further evaluation in the EIR.


f. Conflict with adopted policies, plans, or programs regarding public transit, bikeways, or pedestrian facilities, or otherwise substantially decrease the performance or safety of such facilities?

The project would involve development of seven single-family residences in the gated City of Hidden Hills. The city does not have transit access because all of the roads are private. The primary source of alternative transportation in the city is horseback riding. The project would include development of bridle trails consistent with City requirements. The project would not conflict with adopted policies, plans, or programs regarding, public transit, bikeways, or pedestrian facilities, or otherwise substantially decrease the performance or safety of such facilities in or outside of the city. The project would thus have a less than significant impact with respect to alternative transportation. This issue does not warrant further analysis in the EIR.




62



Tribal Cultural Resources

Initial Study 63

17 Tribal Cultural Resources


Impact


with Mitigation

Incorporated


Impact No Impact

Would the project cause a substantial adverse change in the significance of a tribal cultural resource, defined in a Public Resources Code section 21074 as either a site, feature, place, or cultural landscape that is geographically defined in terms of the size and scope of the landscape, sacred place, or object with cultural value to a California Native American tribe, and that is:

a. Listed or eligible for listing in the California Register of Historical Resources, or in a local register of historical resources as defined in Public Resources Code section 5020.1(k), or ■ □ □ □

b. A resource determined by the lead agency, in its discretion and supported by substantial evidence, to be significant pursuant to criteria set forth in subdivision (c) of Public Resources Cod Section 2024.1. In applying the criteria set forth in subdivision (c) of Public Resources Code Section 5024.1, the lead agency shall consider the significant of the resource to a California Native American tribe. ■ □ □ □

a., b. Would the project cause a substantial adverse change in the significance of a tribal cultural resource as defined in Public Resources Code 21074 that is (a) listed or eligible for listing in the California Register of Historical Resources, or in a local register of historical resources as defined in Public Resources Code section 5020.1(k), or (b) a resource determined by the lead agency, in its discretion and supported by substantial evidence, to be significant pursuant to criteria set forth in subdivision (c) of Public Resources Code Section 2024.1?

Tribal cultural resources are defined in Public Resources Code 21074 as sites, features, places, cultural landscapes, sacred places, and objects with cultural value to a California Native American tribe that are either:

Included or determined to be eligible for inclusion in the California Register of Historical Resources

Included in a local register of historical resources as defined in subdivision (k) of Section 5020.1

As previously discussed in Section 5, Cultural Resources, the project site does not contain any historical resources, and no archaeological sites or materials have been previously identified onsite. However, construction would involve ground-disturbing activities that could potentially uncover buried tribal resources. In addition, the Fernandeño Tataviam Band of Mission Indians is on record



64

as requesting consultation under AB 52. Consultation could potentially uncover tribal cultural resources on the site that have not yet been identified. Therefore, impacts would be potentially significant and tribal cultural resources will be discussed further in the EIR.



Utilities and Service Systems

Initial Study 65

18 Utilities and Service Systems


Impact


with Mitigation

Incorporated


Impact No Impact

Would the project:

a. Exceed wastewater treatment requirements of the applicable Regional Water Quality Control Board? □ □ ■ □

b. Require or result in the construction of new water or wastewater treatment facilities or expansion of existing facilities, the construction of which could cause significant environmental effects? □ □ ■ □

c. Require or result in the construction of new stormwater drainage facilities or expansion of existing facilities, the construction of which could cause significant environmental effects? □ □ ■ □

d. Have sufficient water supplies available to serve the project from existing entitlements and resources, or are new or expanded entitlements needed? □ □ ■ □

e. Result in a determination by the wastewater treatment provider which serves or may serve the project that it has adequate capacity to serve the project’s projected demand in addition to the provider’s existing commitments? □ □ ■ □

f. Be served by a landfill with sufficient permitted capacity to accommodate the project’s solid waste disposal needs? □ □ ■ □

g. Comply with federal, state, and local statutes and regulations related to solid waste? □ □ □ ■

a Would the project exceed wastewater treatment requirements of the applicable Regional Water Quality Control Board?

The project would not involve development of industrial or commercial uses that would have the potential to create the type of waste that would have a high potential to violate waste water treatment requirements. Additionally, as described under impact analysis b through e below, it



66

would not exceed the treatment capacity of the applicable waste water treatment plant. Rather, it would produce waste water that would take up 0.03 percent of the remaining capacity at the treatment plant. The project would therefore have a less than significant impact with respect to violation of Regional Water Quality Control Board waste water treatment requirements and further discussion in the EIR is not warranted.


b. Would the project require or result in the construction of new water or wastewater treatment facilities or expansion of existing facilities, the construction of which could cause significant environmental effects?

d. Would the project have sufficient water supplies available to serve the project from existing entitlements and resources, or are new or expanded entitlements needed?

e. Would the project result in a determination by the wastewater treatment provider which serves or may serve the project that it has adequate capacity to serve the project’s projected demand in addition to the provider’s existing commitments?

The project would involve the development of seven single-family residences on 16.9 acres and would require extension of existing water and waste water disposal infrastructure systems to serve the site. Existing connections are located at the terminus of Bridle Trail Road. The project would increase demand for water and waste water service.

Water

Water service to the project site and vicinity is provided and maintained by the LVMWD. The LVMWD serves a population of approximately 68,750 people over a 122-square mile area that includes the incorporated cities of Agoura Hills, Calabasas, Hidden Hills, and Westlake Village, as well as unincorporated communities in western Los Angeles County (LVMWD 2016). The LVMWD has no local sources of water and obtains all of its potable water supply from the Metropolitan Water District of Southern California (MWD), which in turn receives water from the State Water Project. The LVMWD does not have a set water allocation from the MWD. Instead, the amount of water allotted to the LVMWD from the MWD is based on long-term (usually three to five year) demand projections from the LVMWD. These projections are based on buildout projections in the LVMWD’s Water Master Plan, which in turn are based on cumulative buildout of the jurisdictions served by the LVMWD.

The LVMWD estimates that it served about 19,600 acre feet per year of potable water in 2015 and will serve about 26,750 acre feet per year in 2040 based on anticipated population growth from new development and historic water demand trends (LVMWD 2016). The LVWMD would have sufficient supplies to meet demand under average, single-dry year, and multiple-dry year conditions. As explained in Section 13, Population and Housing, the project would not induce substantial population growth exceeding LVMWD population projections and, thus, there would be sufficient water supplies to meet project demands. The LVMWD estimates that a single-family residence would consume 2,310 gallons per unit per day (Hidden Hills 2005). Thus, project buildout would increase water demand by about 16,170 gallons per day (2,310 gal/unit/day x 7 units), or 18.1 acre-feet per year.

In addition, future development on the project site would be required to comply with all water system and conservation requirements of the LVMWD and City Ordinance 259, 1- 11-93, which details requirements for water efficient landscaping. Residences would be required to utilize interior water conserving fixtures, including low flow faucets and ultra low flow toilets, consistent with the


Utilities and Service Systems

Initial Study 67

LVMWD standards and 2016 California Green Building Code requirements. The LVMWD encourages extensions of the reclaimed water system to provide landscape irrigation as part of its potable water conservation efforts, particularly in the city where large lots consume additional water for irrigation.

Project development would require the extension of waterlines and hydrants. The precise water system requirements will be determined by engineering design studies prepared subsequent to approval of the preliminary site design. Any proposed water distribution system improvements would be subject to approval by the City of Hidden Hills and the LVMWD. The applicant must also demonstrate that adequate fire flows can be maintained throughout the project site as required by the Los Angeles County Fire Department. Therefore, because adequate supplies are available and because no upgrades other than those site specific improvements would be required, the project would have a less than significant impact with respect to water supply and would not require new water facilities or expansion of existing facilities. This issue will not be discussed further in the EIR.

Waste Water

The LVMWD processes waste water generated in the City of Hidden Hills. The LVMWD provides waste water services to most residents throughout the service area (which is the same area as described above under water) and operates the Tapia Water Reclamation Facility (TWRF). The TWRF is located on Malibu Canyon Road, five miles south of US 101. The TWRF is owned and operated under a joint venture partnership of LVMWD and Triunfo Sanitation District (LVMWD 2013).

The TWRF provides tertiary treatment to waste water. After treatment, the waste water is used to irrigate public and commercial landscaping, such as golf courses, school grounds, highway medians, and parks. The treatment plant currently has a design capacity to accommodate 16 million gallons per day (gpd) of waste water. The plant processed an average flow of approximately 8 million gpd in 2015 (LVMWD 2016). Therefore, the plant is currently operating at approximately 50 percent of total daily capacity. Waste water generation per single-family residence in the LVWMD service area is estimated at about 350 gallons per day (Hidden Hills 2005). Therefore based on an increase of seven residences, the increase in waste water generation would be 2,450 gallons per day or 0.03 percent of the remaining capacity at the TWRF. Therefore, because there is adequate capacity and the only infrastructure improvements would be onsite, there would be a less than significant impact with respect to adequate capacity of the waste water treatment provider, and no new waste water treatment facilities or expansion of existing facilities would be required. This issue will not be discussed further in the EIR.


d. Would the project require or result in the construction of new stormwater drainage facilities or expansion of existing facilities, the construction of which could cause significant environmental effects?

The project would not require the construction of new stormwater drainage facilities. As previously discussed under Section 8, Hydrology and Water Quality, the project would be required to comply with NPDES MS4 permit requirements and would capture most stormwater onsite through a bio-retention/infiltration system in Lot 5, as well as a tree well filter or bio-retention (i.e., rain garden) system upon future construction of single-family homes. Therefore, the effects of the project on surrounding stormwater conveyance systems would be less than significant and further discussion in the EIR is not warranted.




68

f. Would the project be served by a landfill with sufficient permitted capacity to accommodate the project’s solid waste disposal needs?

Waste Management GI Industries (WM) provides refuse and recycling services to residential and commercial uses in the City of Hidden Hills (WM 2017a). Refuse is transported primarily to the Simi Valley Landfill and Recycling Center (SVLRC) (WM 2017b). Hidden Hills is also in the waste-shed of the Calabasas Sanitary Landfill (LACSD 2017). Based upon the availability of disposal space and/or market factors, the waste transport company may dispose at other locations as well. The SVLRC can accept up to 3,000 tons of trash per day and 6,250 tons of recyclable material (WM 2017b). As of April 2012, the SVLRC had a remaining capacity of over 119.5 million cubic yards (CalRecycle 2017a). The Calabasas Sanitary Landfill accepts 3,500 tons of solid waste per day and had a remaining capacity of 14.5 million cubic yards as of December 2014 (CalRecycle 2017b).

The project would incrementally increase waste generated at the project site by allowing for the development of seven new single-family homes. Using the waste generation estimate for residential uses provided in the Los Angeles CEQA Thresholds Guide of 12.23 pounds per household per day, full buildout of the project would generate approximately 85.6 pounds, or 0.04 tons, per day (Los Angeles 2006). This would utilize approximately 0.0006 percent of the combined daily waste processing capacity for the SVLRC and Calabasas Sanitary Landfill. Therefore, the project would be served by landfills with sufficient permitted capacity to accommodate the project’s disposal needs. Impacts would be less than significant and further analysis in an EIR is not warranted.


g. Would the project comply with federal, state, and local statutes and regulations related to solid waste?

The City of Hidden Hills is a participating member in a Joint Powers Agreement to form the Los Angeles Area Regional Agency. The purpose of this agency is to calculate a single diversion rate for all cities involved to ensure compliance with AB 939, which requires a diversion rate of 50 percent by 2000, and to coordinate efforts to achieve California’s goal of 75 percent diversion by 2020. As stated in the 2015 Annual Report, the Los Angeles Area Regional Agency met and exceeded diversion goals for 2015 (Los Angeles Area Integrated Waste Management Authority 2016). The 2015 target for the residential population was 7.1 pounds per person per day, while the actual disposal rate was 5.1 pounds per person per day.

Future development at the project site would be required to comply with applicable existing and future state and local regulations related to solid waste. For example, development would be required to comply with new standards in the 2016 California Green Building Standards Code requiring 65 percent diversion of construction and demolition waste. As such, the project would not conflict with solid waste regulations. There would be no impact and further analysis in the EIR is not warranted.

NO IMPACT


Mandatory Findings of Significance

Initial Study 69

19 Mandatory Findings of Significance


Impact


with Mitigation

Incorporated


Impact No Impact

Does the project:

a. Have the potential to substantially reduce the habitat of a fish or wildlife species, cause a fish or wildlife population to drop below self-sustaining levels, eliminate a plant or animal community, reduce the number or restrict the range of a rare or endangered plant or animal or eliminate important examples of the major periods of California history or prehistory? ■ □ □ □

b. Have impacts that are individually limited, but cumulatively considerable? (“Cumulatively considerable” means that the incremental effects of a project are considerable when viewed in connection with the effects of past projects, the effects of other current projects, and the effects of probable future projects)? ■ □ □ □

c. Have environmental effects which will cause substantial adverse effects on human beings, either directly or indirectly? ■ □ □ □

a Does the project have the potential to substantially reduce the habitat of a fish or wildlife species, cause a fish or wildlife population to drop below self-sustaining levels, eliminate a plant or animal community, reduce the number or restrict the range of a rare or endangered plant or animal or eliminate important examples of the major periods of California history or prehistory?

The project has the potential to affect biological resources and would remove existing trees onsite (see discussion under Section 4, Biological Resources). In addition, the project has the potential to affect as yet undiscovered cultural resources, if present (see discussion under Section 5, Cultural Resources). Lastly, the project would affect a ridgeline that could be classified as a unique geologic resource (see Section 5, Cultural Resources). These are potentially significant impacts that will be further examined in the EIR.




70

b. Does the project have impacts that are individually limited, but cumulatively considerable? (“Cumulatively considerable” means that the incremental effects of a project are considerable when viewed in connection with the effects of past projects, the effects of other current projects, and the effects of probable future projects)?

The project would have no impact, and therefore no cumulative effects on Mineral Resources. In addition, the project would have less than significant impacts to Agricultural Resources, Greenhouse Gas Emissions, Hazards and Hazardous Materials, Public Services, Utilities and Service Systems, and Population and Housing. Impacts to some of these resource areas, such as Hazards and Hazardous Materials are site specific and would not have a cumulative effect. Impacts to the remaining resource areas are associated with growth and lie within the scope of local and regional planning documents; therefore, there would be no cumulatively significant impacts. However, a number of resource areas were found to be potentially significant and could have cumulative effects. The following issue areas will be further examined in the EIR for cumulative effects: Aesthetics, Air Quality, Biological Resources, Cultural Resources (including Tribal Cultural Resources), Air Quality, Hydrology and Water Quality, Noise, Geology and Soils, Land Use and Planning, and Transportation. These are potentially significant impacts that will be further examined in the EIR.


c. Does the project have environmental effects which will cause substantial adverse effects on human beings, either directly or indirectly?

This preliminary determination indicates that the project may involve adverse impacts related to Hydrology and Water Quality, Geology and Soils, Noise, Air Quality, and Transportation. These could have direct or indirect potentially significant impacts on human beings. These issues will be further evaluated in the EIR.


References

Initial Study 71

References

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California Air Pollution Control Officers Association (CACOPA). 2008. CEQA and Climate Change: Addressing Climate Change through California Environmental Quality Act (CEQA).

_____. 2016. CalEEMod User’s Guide, Version 2016.3.1. http://www.aqmd.gov/docs/default-source/caleemod/upgrades/2016.3/01_user-39-s-guide2016-3-1.pdf?sfvrsn=2. (accessed March 2017).

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California Department of Forestry and Fire Protection (CAL FIRE). 2017. Very High Fire Hazard Severity Zones in LRA, As Recommended by CAL FIRE. http://www.fire.ca.gov/fire_prevention/fhsz_maps/FHSZ/los_angeles/Hidden_Hills.pdf. Accessesd on April 5, 2017.

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California Office of Planning and Research (OPR). 2016. 2016 California Jurisdictions Addressing Climate Change. https://www.opr.ca.gov/docs/2016_California_Jurisdictions_Addressing_Climate_Change_Summary.pdf. (accessed March 2017).

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http://www.envirostor.dtsc.ca.gov/public/



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CalRecycle. 2017a. “Facility/Site Summary Details: Simi Valley Landfill & Recycling Center (56-AA-0007).” http://www.calrecycle.ca.gov/SWFacilities/Directory/56-AA-0007/Detail/. (accessed March 2017).

CalRecycle. 2017b. “Facility/Site Summary Details: Calabasas Landfill (19-AA-0056).” http://www.calrecycle.ca.gov/SWFacilities/Directory/19-AA-0056/Detail/. (accessed March 2017).

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Delane Engineering. 2016b. Stormwater Quality for Tentative Tract No. 63576, Report. December 2016.

–––––. 2003b. Hidden Ridge – TT 54063, 54064 Biological Resources Assessment – Supplemental Information. Report of Sensitive Species Surveys. Hidden Hills, Los Angeles County, CA. May 2003.

Glenn Lukos Associates. 2015. Jurisdictional Delineation of the Bridle Trail Development, an Approximately 18-Acre Property Located in Hidden Hills, Los Angeles County, California (Letter). April 8, 2015.

GPA Consulting. 2015. Biological Resource Assessment: Hidden Hills Vesting Tentative Tract Number 063567. Prepared for Ashely Construction, Inc. July 2015.

Hidden Hills, City of. 1995. General Plan.

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Hidden Hills, City of. 2007. Ashley Construction VTTM 63567 EIR, Initial Study. Prepared by Rincon Consultants, Inc. February 2007.

J. Byer Group, Inc. 2006. Geologic and Soils Engineering Exploration. Proposed Residential Subdivision Tentative Tract 63567. Lots 11-13, Tract 32063 and NW1/4 of NW1/4 of Section 22; T1N; R17W East of 24279 Bridle Trail Road and West of 5351 Lasher Road. Hidden Hills, California. Revised March 1, 2006.

Las Virgenes Municipal Water District (LVWMD). 2013. Tapia Water Reclamation Facility. http://www.lvmwd.com/your-water/wastewater-services/tapia-water-reclamation-facility. (accessed March 2017).

_____. 2016. 2015 Urban Water Management Plan. http://www.lvmwd.com/home/showdocument?id=6877. Oxnard, CA. August 17, 2016 (accessed March 2017).

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SOLID Soils & Geologic Consultants. 2014. Landslide Investigation: 10-Acre Parcel Between Lasher Road and Bridle Trail Road, Tentative Tract 63567, Hidden Hills, CA. Prepared for Ashley Constuction, Inc. November 10, 2014.

Southern California Association of Governments (SCAG). 2015. 2016-2040 Regional Transportation Plan/ Sustainable Communities Strategy: Demographics and Growth Forecast. December 2015. http://scagrtpscs.net/Documents/2016/draft/d2016RTPSCS_DemographicsGrowthForecast.pdf. (accessed March 2017).

South Coast Air Quality Management District (SCAQMD). 2010. Greenhouse Gas CEQA Significance Threshold Stakeholder Working Group Meeting #15 . http://www.aqmd.gov/docs/default-source/ceqa/handbook/greenhouse-gases-(ghg)-ceqa-significance-thresholds/year-2008-2009/ghg-meeting-15/ghg-meeting-15-main-presentation.pdf?sfvrsn=2. (accessed March 2017).

_____. 2016. National Ambient Air Quality Standards (NAAQS) and California Ambient Air Quality Standards (CAAQS) Attainment Status for South Coast Air Basin. February 2016. http://www.aqmd.gov/docs/default-source/clean-air-plans/air-quality-management-plans/naaqs-caaqs-feb2016.pdf?sfvrsn=2. (March 2017).

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_____. 2016b. Superfund Enterprise Management Search (database). October 31, 2016. https://www.epa.gov/enviro/sems-search. (accessed March 2017).

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W & S Consultants. 2015. Phase I Archaeological Survey of the Tentative Vesting Map No. 63567, Hidden Hills, Los Angeles, County, CA.

Waste Management, Inc (WM). 2017a. “City of Hidden Hills.” https://www.wm.com/location/california/ventura-county/hidden-hills/index.jsp. (accessed March 2017).

_____. 2017b. “Simi Valley Landfill.” https://www.wm.com/location/california/ventura-county/hidden-hills/landfill/index.jsp. (accessed March 2017).

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Personal Communication

Beder, Kelly. Business Services, Las Virgenes Unified School District. Personal communication (email). March 24, 2017.

Bagwell, Loretta. Planning Analyst, Planning Division, Los Angeles County Fire Department. 2017. Personal communication (email). March 24, 2017.

List of Preparers

Rincon Consultants, Inc. prepared this IS under contract to the City of Hidden Hills. Persons involved in data gathering analysis, project management, and quality control include the following:

RINCON CONSULTANTS

Jasch Janowicz, Principal Bronwyn Green, MESM, Project Manager Greg Martin, AICP, Deputy Project Manager Smadar Levy, MESM, Associate Planner Jon Montgomery, GIS Analyst

Appendix A Air Quality and Greenhouse Gas Emissions Modeling

1.1 Land Usage

Land Uses Size Metric Lot Acreage Floor Surface Area Population

Other Asphalt Surfaces 1.17 1000sqft 0.03 1,167.00 0

Single Family Housing 7.00 Dwelling Unit 16.87 49,000.00 20

1.2 Other Project Characteristics

Urbanization

Climate Zone

Rural

8

Wind Speed (m/s) Precipitation Freq (Days)2.2 33

1.3 User Entered Comments

1.0 Project Characteristics

Utility Company Southern California Edison

2019Operational Year

CO2 Intensity (lb/MWhr)

702.44 0.029CH4 Intensity (lb/MWhr)

0.006N2O Intensity (lb/MWhr)

Hidden Hills VTM 63567Los Angeles-South Coast, Summary Report

Only CalEEMod defaults were used.

CalEEMod Version: CalEEMod.2016.3.1 Date: 3/22/2017 12:42 PMPage 1 of 4

Hidden Hills VTM 63567 - Los Angeles-South Coast County, Summary Report

Project Characteristics - Used CEC climate zone for Calabasas

Land Use - Increased lot size to reflect actual lot size. Assumed square footage of each house to be 7,000.

Construction Phase - Altered architectural coating to begin about halfway through building construction. Assumed 3-month grading period as in previous EIR for VTTM 036567

Grading - Conservatively assume 10% of graded material would be imported and exported (167,179 total, 10% =16,718) , with half that amount imported (8359) and half exported (8359).

Architectural Coating - Rule 1113- 50 g/L max VOC content for non-flat coatings.

Woodstoves - SCAQMD Rule 445: No wood-burning devices. Conservatively assumed all homes would have gas fireplaces.

Area Coating - Rule 1113

Energy Use -

Construction Off-road Equipment Mitigation - Rule 403 requires watering as necessary to prevent visible emissions from extending more than 100 feet

Area Mitigation -

2.0 Peak Daily Emissions

Peak Daily Construction Emissions

Peak Daily Construction Emissions



Unmitigated Mitigated

ROG NOX CO SO2 PM10 PM2.5 ROG NOX CO SO2 PM10 PM2.5

Year Phase lb/day

2017 Demolition 4.2354 W 42.8523 W 24.2261 S 0.0414 S 2.4213 S 2.1043 S 1.3940 W 32.7686 W 25.8878 S 0.0414 S 1.1414 S 0.9753 S

2017 Site Preparation 5.1196 W 52.4011 W 24.9120 S 0.0412 S 21.2182 S 12.6531 S 1.3685 W 33.8471 W 24.4167 S 0.0412 S 8.2654 S 4.8933 S

2017 Grading 6.3274 W 80.3650 W 42.9177 W 0.0940 S 12.7972 W 6.7499 W 2.3897 W 63.6640 W 40.8577 W 0.0940 S 5.7478 W 3.0595 W

2018 Grading 5.6006 W 71.0508 W 38.8782 W 0.0936 S 17.3608 W 7.5587 W 2.3210 W 62.7676 W 40.5115 W 0.0936 S 10.7504 W 4.2722 W

2018 Building Construction 2.7081 W 23.5400 W 17.8293 S 0.0277 S 1.5537 W 1.4253 W 1.1095 W 23.7044 W 18.1227 S 0.0277 S 0.9574 W 0.9190 W

2019 Building Construction 2.3871 W 21.2188 W 17.3869 S 0.0277 S 1.3436 W 1.2280 W 1.1068 W 23.6944 W 18.0969 S 0.0277 S 0.9573 W 0.9188 W

2019 Paving 1.5643 W 15.3243 W 15.6157 S 0.0253 S 1.0523 S 0.8203 S 1.0409 W 20.1949 W 18.2465 S 0.0253 S 0.8947 S 0.7286 S

2018 Architectural Coating 2.3516 W 2.0118 W 1.9252 S 3.1400e-003 S 0.1657 S 0.1547 S 2.1668 W 2.3585 W 1.9034 S 3.1400e-003 S 0.1103 S 0.0992 S

2019 Architectural Coating 2.3186 W 1.8407 W 1.9047 S 3.1300e-003 S 0.1439 S 0.1329 S 2.1661 W 2.3578 W 1.8958 S 3.1300e-003 S 0.1103 S 0.0992 S

Peak Daily Total 6.3274 W 80.3650 W 42.9177 W 0.0940 S 21.2182 S 12.6531 S 2.3897 W 63.6640 W 40.8577 W 0.0940 S 10.7504 W 4.8933 S

Air District Threshold

Exceed Significance?

Peak Daily Operational Emissions

Peak Daily Operational Emissions



3.0 Annual GHG Emissions

Annual GHG

Annual GHG


CO2 CH4 N2O CO2e CO2 CH4 N2O CO2e

GHG Activity Year MT/yr

Construction 2017 299.6052 0.0696 0.0000 301.3449 299.6049 0.0696 0.0000 301.3447

Construction 2018 346.2413 0.0809 0.0000 348.2645 346.2409 0.0809 0.0000 348.2641

Construction 2019 85.1555 0.0200 0.0000 85.6551 85.1554 0.0200 0.0000 85.6550

Operational 2019 177.8214 0.1222 7.8018e-004 181.1091 177.8214 0.1222 7.8018e-004 181.1091

Total

Significance Threshold



ROG NOX CO SO2 PM10 PM2.5 ROG NOX CO SO2 PM10 PM2.5

Operational Activity lb/day

On-Site Area 1.0840 S 0.1054 S 0.6225 S 6.6000e-004 S 0.0112 S 0.0112 S 1.0840 S 0.1054 S 0.6225 S 6.6000e-004 S 0.0112 S 0.0112 S

On-Site Energy 6.4500e-003 S 0.0551 S 0.0235 S 3.5000e-004 S 4.4600e-003 S 4.4600e-003 S 6.4500e-003 S 0.0551 S 0.0235 S 3.5000e-004 S 4.4600e-003 S 4.4600e-003 S

Off-Site Mobile 0.1737 S 0.8876 W 2.7359 S 9.1300e-003 S 0.7260 W 0.2004 W 0.1737 S 0.8876 W 2.7359 S 9.1300e-003 S 0.7260 W 0.2004 W

Peak Daily Total 1.2642 S 1.0482 W 3.3819 S 0.0101 S 0.7416 W 0.2160 W 1.2642 S 1.0482 W 3.3819 S 0.0101 S 0.7416 W 0.2160 W

Air District Threshold




1.1 Land Usage





Urbanization

Climate Zone

Rural

8


1.3 User Entered Comments & Non-Default Data







Hidden Hills VTM 63567Los Angeles-South Coast County, Winter


Hidden Hills VTM 63567 - Los Angeles-South Coast County, Winter








Energy Use -


Area Mitigation -

Table Name Column Name Default Value New Value

tblArchitecturalCoating EF_Nonresidential_Exterior 100.00 50.00

tblArchitecturalCoating EF_Nonresidential_Interior 100.00 50.00

tblArchitecturalCoating EF_Parking 100.00 50.00

tblAreaCoating Area_EF_Nonresidential_Exterior 100 50

tblAreaCoating Area_EF_Parking 100 50

tblAreaMitigation UseLowVOCPaintParkingCheck False True

tblConstDustMitigation WaterUnpavedRoadVehicleSpeed 40 15

tblConstEquipMitigation NumberOfEquipmentMitigated 0.00 1.00
















tblConstEquipMitigation Tier No Change Tier 2














tblConstructionPhase NumDays 20.00 150.00


tblConstructionPhase PhaseEndDate 10/25/2019 4/5/2019

tblConstructionPhase PhaseStartDate 3/30/2019 9/10/2018

tblFireplaces FireplaceWoodMass 1,019.20 0.00

tblFireplaces NumberNoFireplace 0.70 0.00



tblFireplaces NumberWood 0.35 0.00

tblGrading MaterialExported 0.00 8,359.00

tblGrading MaterialImported 0.00 8,359.00

tblLandUse BuildingSpaceSquareFeet 1,170.00 1,167.00


tblLandUse LandUseSquareFeet 1,170.00 1,167.00


tblLandUse LotAcreage 2.27 16.87

tblProjectCharacteristics OperationalYear 2018 2019

tblProjectCharacteristics UrbanizationLevel Urban Rural

tblVehicleEF HHD 0.73 0.68






tblVehicleEF HHD 4,761.38 4,770.40













tblVehicleEF HHD 1.3300e-004 1.0700e-004



















































tblVehicleEF LDA 7.3540e-003 6.5530e-003


tblVehicleEF LDA 0.83 0.76



























tblVehicleEF LDT1 0.02 0.02











tblVehicleEF LDT1 4.1790e-003 3.9490e-003















































tblVehicleEF LDT2 0.01 9.1430e-003





























tblVehicleEF LHD1 6.6400e-003 6.3570e-003

tblVehicleEF LHD1 0.02 0.02



















tblVehicleEF LHD2 0.01 9.7680e-003

















tblVehicleEF MCY 0.52 0.53






tblVehicleEF MCY 4.9150e-003 5.0050e-003
















































tblVehicleEF MDV 0.02 0.02











tblVehicleEF MDV 2.5190e-003 2.4830e-003















































tblVehicleEF MH 0.05 0.04






tblVehicleEF MH 1,144.86 1,138.98


tblVehicleEF MH 9.2500e-004 9.0700e-004





























tblVehicleEF MHD 0.02 0.02

tblVehicleEF MHD 0.01 8.6590e-003






tblVehicleEF MHD 1,162.43 1,158.03






tblVehicleEF MHD 3.7740e-003 2.2420e-003
















tblVehicleEF OBUS 0.01 0.01







tblVehicleEF OBUS 1,279.87 1,273.03


tblVehicleEF OBUS 2.3910e-003 2.4380e-003








tblVehicleEF OBUS 0.01 9.9080e-003












tblVehicleEF SBUS 0.88 0.88






tblVehicleEF SBUS 1,169.81 1,153.25



tblVehicleEF SBUS 6.7200e-004 6.7700e-004





















tblVehicleEF SBUS 0.01 9.8410e-003


































tblVehicleEF UBUS 3.10 2.95




tblVehicleEF UBUS 2,035.51 2,008.92


tblVehicleEF UBUS 2.4690e-003 2.3590e-003












2.0 Emissions Summary


















tblWoodstoves NumberCatalytic 0.35 0.00

tblWoodstoves NumberNoncatalytic 0.35 0.00

tblWoodstoves WoodstoveWoodMass 999.60 0.00



2.1 Overall Construction (Maximum Daily Emission)

ROG NOx CO SO2 Fugitive PM10

Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total

Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e

Year lb/day lb/day

2017 6.3274 80.3650 42.9177 0.0933 18.3372 3.1404 21.2182 10.0025 2.8916 12.6531 0.0000 9,695.5774

9,695.5774

2.1809 0.0000 9,750.0992

2018 5.6006 71.0508 38.8782 0.0930 14.6808 2.6800 17.3608 5.0915 2.4672 7.5587 0.0000 9,559.8121

9,559.8121

2.1739 0.0000 9,614.1590

2019 4.7057 23.0596 19.2721 0.0308 0.2408 1.4200 1.4875 0.0639 1.3428 1.3608 0.0000 2,964.5212

2,964.5212

0.7462 0.0000 2,981.0013

Maximum 6.3274 80.3650 42.9177 0.0933 18.3372 3.1404 21.2182 10.0025 2.8916 12.6531 0.0000 9,695.5774

9,695.5774

2.1809 0.0000 9,750.0992

Unmitigated Construction


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total


Year lb/day lb/day

2017 2.3897 63.6640 40.8577 0.0933 7.3168 1.4010 8.2654 3.9448 1.3980 4.8933 0.0000 9,695.5774

9,695.5774

2.1809 0.0000 9,750.0992

2018 3.2763 62.7676 40.5115 0.0930 9.3708 1.3796 10.7504 2.8947 1.3775 4.2722 0.0000 9,559.8121

9,559.8121

2.1739 0.0000 9,614.1590

2019 3.2729 26.0522 20.0521 0.0308 0.2408 1.0000 1.0675 0.0639 0.9999 1.0180 0.0000 2,964.5212

2,964.5212

0.7462 0.0000 2,981.0013

Maximum 3.2763 63.6640 40.8577 0.0933 9.3708 1.4010 10.7504 3.9448 1.3980 4.8933 0.0000 9,695.5774

9,695.5774

2.1809 0.0000 9,750.0992

Mitigated Construction




Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total

Bio- CO2 NBio-CO2 Total CO2 CH4 N20 CO2e

Percent Reduction

46.26 12.60 -0.35 0.00 49.10 47.78 49.87 54.46 43.66 52.79 0.00 0.00 0.00 0.00 0.00 0.00



2.2 Overall Operational


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total


Category lb/day lb/day

Area 1.0840 0.1054 0.6225 6.6000e-004

0.0112 0.0112 0.0112 0.0112 0.0000 127.0401 127.0401 3.4400e-003

2.3100e-003

127.8144

Energy 6.4500e-003

0.0551 0.0235 3.5000e-004

4.4600e-003

4.4600e-003

4.4600e-003

4.4600e-003

70.3907 70.3907 1.3500e-003

1.2900e-003

70.8090

Mobile 0.1691 0.8876 2.5686 8.6900e-003

0.7169 9.0800e-003

0.7260 0.1919 8.5100e-003

0.2004 882.5605 882.5605 0.0489 883.7822

Total 1.2595 1.0482 3.2146 9.7000e-003

0.7169 0.0247 0.7416 0.1919 0.0241 0.2160 0.0000 1,079.9913

1,079.9913

0.0537 3.6000e-003

1,082.4056

Unmitigated Operational


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Area 1.0840 0.1054 0.6225 6.6000e-004

0.0112 0.0112 0.0112 0.0112 0.0000 127.0401 127.0401 3.4400e-003

2.3100e-003

127.8144

Energy 6.4500e-003

0.0551 0.0235 3.5000e-004

4.4600e-003

4.4600e-003

4.4600e-003

4.4600e-003

70.3907 70.3907 1.3500e-003

1.2900e-003

70.8090

Mobile 0.1691 0.8876 2.5686 8.6900e-003

0.7169 9.0800e-003

0.7260 0.1919 8.5100e-003

0.2004 882.5605 882.5605 0.0489 883.7822

Total 1.2595 1.0482 3.2146 9.7000e-003

0.7169 0.0247 0.7416 0.1919 0.0241 0.2160 0.0000 1,079.9913

1,079.9913

0.0537 3.6000e-003

1,082.4056

Mitigated Operational



3.0 Construction Detail

Construction Phase

Phase Number

Phase Name Phase Type Start Date End Date Num Days Week

Num Days Phase Description

1 Demolition Demolition 9/4/2017 9/29/2017 5 20

2 Site Preparation Site Preparation 9/30/2017 10/13/2017 5 10

3 Grading Grading 10/14/2017 1/5/2018 5 60

4 Building Construction Building Construction 1/6/2018 3/1/2019 5 300

5 Paving Paving 3/2/2019 3/29/2019 5 20

6 Architectural Coating Architectural Coating 9/10/2018 4/5/2019 5 150

OffRoad Equipment


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total


Percent Reduction

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

Residential Indoor: 99,225; Residential Outdoor: 33,075; Non-Residential Indoor: 0; Non-Residential Outdoor: 0; Striped Parking Area: 70 (Architectural Coating – sqft)

Acres of Grading (Site Preparation Phase): 0

Acres of Grading (Grading Phase): 150

Acres of Paving: 0.03



Phase Name Offroad Equipment Type Amount Usage Hours Horse Power Load Factor

Demolition Concrete/Industrial Saws 1 8.00 81 0.73

Demolition Excavators 3 8.00 158 0.38

Demolition Rubber Tired Dozers 2 8.00 247 0.40

Site Preparation Rubber Tired Dozers 3 8.00 247 0.40

Site Preparation Tractors/Loaders/Backhoes 4 8.00 97 0.37

Grading Excavators 2 8.00 158 0.38

Grading Graders 1 8.00 187 0.41

Grading Rubber Tired Dozers 1 8.00 247 0.40

Grading Scrapers 2 8.00 367 0.48

Grading Tractors/Loaders/Backhoes 2 8.00 97 0.37

Building Construction Cranes 1 7.00 231 0.29

Building Construction Forklifts 3 8.00 89 0.20

Building Construction Generator Sets 1 8.00 84 0.74

Building Construction Tractors/Loaders/Backhoes 3 7.00 97 0.37

Building Construction Welders 1 8.00 46 0.45

Paving Pavers 2 8.00 130 0.42

Paving Paving Equipment 2 8.00 132 0.36

Paving Rollers 2 8.00 80 0.38

Architectural Coating Air Compressors 1 6.00 78 0.48

Trips and VMT



3.2 Demolition - 2017


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Off-Road 4.1031 42.7475 23.0122 0.0388 2.1935 2.1935 2.0425 2.0425 3,924.2833

3,924.2833

1.0730 3,951.1070

Total 4.1031 42.7475 23.0122 0.0388 2.1935 2.1935 2.0425 2.0425 3,924.2833

3,924.2833

1.0730 3,951.1070

Unmitigated Construction On-Site

3.1 Mitigation Measures Construction

Use Cleaner Engines for Construction Equipment

Water Exposed Area

Reduce Vehicle Speed on Unpaved Roads

Clean Paved Roads

Phase Name Offroad Equipment Count

Worker Trip Number

Vendor Trip Number

Hauling Trip Number

Worker Trip Length

Vendor Trip Length

Hauling Trip Length

Worker Vehicle Class

Vendor Vehicle Class

Hauling Vehicle Class

Demolition 6 15.00 0.00 0.00 19.80 7.90 20.00 LD_Mix HDT_Mix HHDT

Site Preparation 7 18.00 0.00 0.00 19.80 7.90 20.00 LD_Mix HDT_Mix HHDT

Grading 8 20.00 0.00 2,090.00 19.80 7.90 20.00 LD_Mix HDT_Mix HHDT

Building Construction 9 3.00 1.00 0.00 19.80 7.90 20.00 LD_Mix HDT_Mix HHDT

Paving 6 15.00 0.00 0.00 19.80 7.90 20.00 LD_Mix HDT_Mix HHDT

Architectural Coating 1 1.00 0.00 0.00 19.80 7.90 20.00 LD_Mix HDT_Mix HHDT





Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Vendor 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Worker 0.1323 0.1048 1.1160 2.4500e-003

0.2258 2.0600e-003

0.2279 0.0599 1.9000e-003

0.0618 243.9744 243.9744 0.0101 244.2256

Total 0.1323 0.1048 1.1160 2.4500e-003

0.2258 2.0600e-003

0.2279 0.0599 1.9000e-003

0.0618 243.9744 243.9744 0.0101 244.2256

Unmitigated Construction Off-Site


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Off-Road 1.2617 32.6638 24.6739 0.0388 0.9135 0.9135 0.9135 0.9135 0.0000 3,924.2833

3,924.2833

1.0730 3,951.1070

Total 1.2617 32.6638 24.6739 0.0388 0.9135 0.9135 0.9135 0.9135 0.0000 3,924.2833

3,924.2833

1.0730 3,951.1070

Mitigated Construction On-Site





Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Vendor 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Worker 0.1323 0.1048 1.1160 2.4500e-003

0.2258 2.0600e-003

0.2279 0.0599 1.9000e-003

0.0618 243.9744 243.9744 0.0101 244.2256

Total 0.1323 0.1048 1.1160 2.4500e-003

0.2258 2.0600e-003

0.2279 0.0599 1.9000e-003

0.0618 243.9744 243.9744 0.0101 244.2256

Mitigated Construction Off-Site

3.3 Site Preparation - 2017


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Fugitive Dust 18.0663 0.0000 18.0663 9.9307 0.0000 9.9307 0.0000 0.0000

Off-Road 4.9608 52.2754 23.4554 0.0380 2.8786 2.8786 2.6483 2.6483 3,894.9500

3,894.9500

1.1934 3,924.7852

Total 4.9608 52.2754 23.4554 0.0380 18.0663 2.8786 20.9448 9.9307 2.6483 12.5790 3,894.9500

3,894.9500

1.1934 3,924.7852






Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Vendor 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Worker 0.1588 0.1258 1.3392 2.9400e-003

0.2709 2.4800e-003

0.2734 0.0719 2.2800e-003

0.0741 292.7693 292.7693 0.0121 293.0707

Total 0.1588 0.1258 1.3392 2.9400e-003

0.2709 2.4800e-003

0.2734 0.0719 2.2800e-003

0.0741 292.7693 292.7693 0.0121 293.0707



Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Fugitive Dust 7.0458 0.0000 7.0458 3.8730 0.0000 3.8730 0.0000 0.0000

Off-Road 1.2097 33.7214 22.9600 0.0380 0.9462 0.9462 0.9462 0.9462 0.0000 3,894.9500

3,894.9500

1.1934 3,924.7852

Total 1.2097 33.7214 22.9600 0.0380 7.0458 0.9462 7.9920 3.8730 0.9462 4.8191 0.0000 3,894.9500

3,894.9500

1.1934 3,924.7852






Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Vendor 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Worker 0.1588 0.1258 1.3392 2.9400e-003

0.2709 2.4800e-003

0.2734 0.0719 2.2800e-003

0.0741 292.7693 292.7693 0.0121 293.0707

Total 0.1588 0.1258 1.3392 2.9400e-003

0.2709 2.4800e-003

0.2734 0.0719 2.2800e-003

0.0741 292.7693 292.7693 0.0121 293.0707


3.4 Grading - 2017


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Fugitive Dust 8.7049 0.0000 8.7049 3.6013 0.0000 3.6013 0.0000 0.0000

Off-Road 5.7483 67.9396 38.7826 0.0620 3.0727 3.0727 2.8269 2.8269 6,344.8863

6,344.8863

1.9441 6,393.4879

Total 5.7483 67.9396 38.7826 0.0620 8.7049 3.0727 11.7776 3.6013 2.8269 6.4282 6,344.8863

6,344.8863

1.9441 6,393.4879




3.4 Grading - 2017


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 0.4027 12.2856 2.6472 0.0281 0.6508 0.0650 0.7158 0.1772 0.0622 0.2394 3,025.3919

3,025.3919

0.2234 3,030.9772

Vendor 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Worker 0.1764 0.1397 1.4879 3.2700e-003

0.3010 2.7500e-003

0.3038 0.0798 2.5400e-003

0.0824 325.2992 325.2992 0.0134 325.6341

Total 0.5791 12.4254 4.1352 0.0313 0.9519 0.0677 1.0196 0.2570 0.0647 0.3217 3,350.6911

3,350.6911

0.2368 3,356.6113



Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Fugitive Dust 3.3949 0.0000 3.3949 1.4045 0.0000 1.4045 0.0000 0.0000

Off-Road 1.8106 51.2386 36.7226 0.0620 1.3333 1.3333 1.3333 1.3333 0.0000 6,344.8863

6,344.8863

1.9441 6,393.4878

Total 1.8106 51.2386 36.7226 0.0620 3.3949 1.3333 4.7282 1.4045 1.3333 2.7378 0.0000 6,344.8863

6,344.8863

1.9441 6,393.4878




3.4 Grading - 2017


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 0.4027 12.2856 2.6472 0.0281 0.6508 0.0650 0.7158 0.1772 0.0622 0.2394 3,025.3919

3,025.3919

0.2234 3,030.9772

Vendor 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Worker 0.1764 0.1397 1.4879 3.2700e-003

0.3010 2.7500e-003

0.3038 0.0798 2.5400e-003

0.0824 325.2992 325.2992 0.0134 325.6341

Total 0.5791 12.4254 4.1352 0.0313 0.9519 0.0677 1.0196 0.2570 0.0647 0.3217 3,350.6911

3,350.6911

0.2368 3,356.6113


3.4 Grading - 2018


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Fugitive Dust 8.7049 0.0000 8.7049 3.6013 0.0000 3.6013 0.0000 0.0000

Off-Road 5.0901 59.5218 35.0894 0.0620 2.6337 2.6337 2.4230 2.4230 6,244.4284

6,244.4284

1.9440 6,293.0278

Total 5.0901 59.5218 35.0894 0.0620 8.7049 2.6337 11.3386 3.6013 2.4230 6.0243 6,244.4284

6,244.4284

1.9440 6,293.0278




3.4 Grading - 2018


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 0.3545 11.4075 2.4910 0.0278 5.6749 0.0436 5.7185 1.4104 0.0418 1.4521 2,999.0217

2,999.0217

0.2182 3,004.4758

Vendor 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Worker 0.1560 0.1215 1.2979 3.1800e-003

0.3010 2.6400e-003

0.3037 0.0798 2.4300e-003

0.0823 316.3620 316.3620 0.0117 316.6555

Total 0.5104 11.5290 3.7889 0.0309 5.9759 0.0463 6.0222 1.4902 0.0442 1.5344 3,315.3837

3,315.3837

0.2299 3,321.1312



Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Fugitive Dust 3.3949 0.0000 3.3949 1.4045 0.0000 1.4045 0.0000 0.0000

Off-Road 1.8106 51.2386 36.7226 0.0620 1.3333 1.3333 1.3333 1.3333 0.0000 6,244.4284

6,244.4284

1.9440 6,293.0278

Total 1.8106 51.2386 36.7226 0.0620 3.3949 1.3333 4.7282 1.4045 1.3333 2.7378 0.0000 6,244.4284

6,244.4284

1.9440 6,293.0278




3.4 Grading - 2018


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 0.3545 11.4075 2.4910 0.0278 5.6749 0.0436 5.7185 1.4104 0.0418 1.4521 2,999.0217

2,999.0217

0.2182 3,004.4758

Vendor 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Worker 0.1560 0.1215 1.2979 3.1800e-003

0.3010 2.6400e-003

0.3037 0.0798 2.4300e-003

0.0823 316.3620 316.3620 0.0117 316.6555

Total 0.5104 11.5290 3.7889 0.0309 5.9759 0.0463 6.0222 1.4902 0.0442 1.5344 3,315.3837

3,315.3837

0.2299 3,321.1312


3.5 Building Construction - 2018


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Off-Road 2.6795 23.3900 17.5804 0.0269 1.4999 1.4999 1.4099 1.4099 2,620.9351

2,620.9351

0.6421 2,636.9883

Total 2.6795 23.3900 17.5804 0.0269 1.4999 1.4999 1.4099 1.4099 2,620.9351

2,620.9351

0.6421 2,636.9883






Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Vendor 5.2100e-003

0.1317 0.0392 2.9000e-004

7.3300e-003

1.0000e-003

8.3200e-003

2.1100e-003

9.5000e-004

3.0600e-003

30.6089 30.6089 2.1000e-003

30.6614

Worker 0.0234 0.0182 0.1947 4.8000e-004

0.0452 4.0000e-004

0.0456 0.0120 3.6000e-004

0.0123 47.4543 47.4543 1.7600e-003

47.4983

Total 0.0286 0.1500 0.2339 7.7000e-004

0.0525 1.4000e-003

0.0539 0.0141 1.3100e-003

0.0154 78.0632 78.0632 3.8600e-003

78.1597



Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Off-Road 1.0809 23.5544 17.8738 0.0269 0.9036 0.9036 0.9036 0.9036 0.0000 2,620.9351

2,620.9351

0.6421 2,636.9883

Total 1.0809 23.5544 17.8738 0.0269 0.9036 0.9036 0.9036 0.9036 0.0000 2,620.9351

2,620.9351

0.6421 2,636.9883






Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Vendor 5.2100e-003

0.1317 0.0392 2.9000e-004

7.3300e-003

1.0000e-003

8.3200e-003

2.1100e-003

9.5000e-004

3.0600e-003

30.6089 30.6089 2.1000e-003

30.6614

Worker 0.0234 0.0182 0.1947 4.8000e-004

0.0452 4.0000e-004

0.0456 0.0120 3.6000e-004

0.0123 47.4543 47.4543 1.7600e-003

47.4983

Total 0.0286 0.1500 0.2339 7.7000e-004

0.0525 1.4000e-003

0.0539 0.0141 1.3100e-003

0.0154 78.0632 78.0632 3.8600e-003

78.1597




Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Off-Road 2.3612 21.0788 17.1638 0.0269 1.2899 1.2899 1.2127 1.2127 2,591.5802

2,591.5802

0.6313 2,607.3635

Total 2.3612 21.0788 17.1638 0.0269 1.2899 1.2899 1.2127 1.2127 2,591.5802

2,591.5802

0.6313 2,607.3635






Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Vendor 4.7100e-003

0.1240 0.0360 2.8000e-004

7.3300e-003

8.5000e-004

8.1800e-003

2.1100e-003

8.1000e-004

2.9200e-003

30.2826 30.2826 2.0200e-003

30.3331

Worker 0.0212 0.0161 0.1733 4.6000e-004

0.0452 3.8000e-004

0.0455 0.0120 3.5000e-004

0.0123 45.9078 45.9078 1.5600e-003

45.9468

Total 0.0259 0.1400 0.2093 7.4000e-004

0.0525 1.2300e-003

0.0537 0.0141 1.1600e-003

0.0153 76.1904 76.1904 3.5800e-003

76.2799



Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Off-Road 1.0809 23.5544 17.8738 0.0269 0.9036 0.9036 0.9036 0.9036 0.0000 2,591.5802

2,591.5802

0.6313 2,607.3635

Total 1.0809 23.5544 17.8738 0.0269 0.9036 0.9036 0.9036 0.9036 0.0000 2,591.5802

2,591.5802

0.6313 2,607.3635






Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Vendor 4.7100e-003

0.1240 0.0360 2.8000e-004

7.3300e-003

8.5000e-004

8.1800e-003

2.1100e-003

8.1000e-004

2.9200e-003

30.2826 30.2826 2.0200e-003

30.3331

Worker 0.0212 0.0161 0.1733 4.6000e-004

0.0452 3.8000e-004

0.0455 0.0120 3.5000e-004

0.0123 45.9078 45.9078 1.5600e-003

45.9468

Total 0.0259 0.1400 0.2093 7.4000e-004

0.0525 1.2300e-003

0.0537 0.0141 1.1600e-003

0.0153 76.1904 76.1904 3.5800e-003

76.2799


3.6 Paving - 2019


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Off-Road 1.4544 15.2441 14.6648 0.0228 0.8246 0.8246 0.7586 0.7586 2,257.0025

2,257.0025

0.7141 2,274.8548

Paving 3.9300e-003

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Total 1.4584 15.2441 14.6648 0.0228 0.8246 0.8246 0.7586 0.7586 2,257.0025

2,257.0025

0.7141 2,274.8548




3.6 Paving - 2019


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Vendor 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Worker 0.1060 0.0803 0.8662 2.3100e-003

0.2258 1.9100e-003

0.2277 0.0599 1.7600e-003

0.0616 229.5391 229.5391 7.7900e-003

229.7339

Total 0.1060 0.0803 0.8662 2.3100e-003

0.2258 1.9100e-003

0.2277 0.0599 1.7600e-003

0.0616 229.5391 229.5391 7.7900e-003

229.7339



Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Off-Road 0.9311 20.1146 17.2957 0.0228 0.6670 0.6670 0.6670 0.6670 0.0000 2,257.0025

2,257.0025

0.7141 2,274.8548

Paving 3.9300e-003

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Total 0.9350 20.1146 17.2957 0.0228 0.6670 0.6670 0.6670 0.6670 0.0000 2,257.0025

2,257.0025

0.7141 2,274.8548




3.6 Paving - 2019


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Vendor 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Worker 0.1060 0.0803 0.8662 2.3100e-003

0.2258 1.9100e-003

0.2277 0.0599 1.7600e-003

0.0616 229.5391 229.5391 7.7900e-003

229.7339

Total 0.1060 0.0803 0.8662 2.3100e-003

0.2258 1.9100e-003

0.2277 0.0599 1.7600e-003

0.0616 229.5391 229.5391 7.7900e-003

229.7339


3.7 Architectural Coating - 2018


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Archit. Coating 2.0451 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Off-Road 0.2986 2.0058 1.8542 2.9700e-003

0.1506 0.1506 0.1506 0.1506 281.4485 281.4485 0.0267 282.1171

Total 2.3438 2.0058 1.8542 2.9700e-003

0.1506 0.1506 0.1506 0.1506 281.4485 281.4485 0.0267 282.1171






Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Vendor 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Worker 7.8000e-003

6.0700e-003

0.0649 1.6000e-004

0.0151 1.3000e-004

0.0152 3.9900e-003

1.2000e-004

4.1100e-003

15.8181 15.8181 5.9000e-004

15.8328

Total 7.8000e-003

6.0700e-003

0.0649 1.6000e-004

0.0151 1.3000e-004

0.0152 3.9900e-003

1.2000e-004

4.1100e-003

15.8181 15.8181 5.9000e-004

15.8328



Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Archit. Coating 2.0451 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Off-Road 0.1139 2.3524 1.8324 2.9700e-003

0.0951 0.0951 0.0951 0.0951 0.0000 281.4485 281.4485 0.0267 282.1171

Total 2.1590 2.3524 1.8324 2.9700e-003

0.0951 0.0951 0.0951 0.0951 0.0000 281.4485 281.4485 0.0267 282.1171






Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Vendor 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Worker 7.8000e-003

6.0700e-003

0.0649 1.6000e-004

0.0151 1.3000e-004

0.0152 3.9900e-003

1.2000e-004

4.1100e-003

15.8181 15.8181 5.9000e-004

15.8328

Total 7.8000e-003

6.0700e-003

0.0649 1.6000e-004

0.0151 1.3000e-004

0.0152 3.9900e-003

1.2000e-004

4.1100e-003

15.8181 15.8181 5.9000e-004

15.8328




Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Archit. Coating 2.0451 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Off-Road 0.2664 1.8354 1.8413 2.9700e-003

0.1288 0.1288 0.1288 0.1288 281.4481 281.4481 0.0238 282.0423

Total 2.3116 1.8354 1.8413 2.9700e-003

0.1288 0.1288 0.1288 0.1288 281.4481 281.4481 0.0238 282.0423






Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Vendor 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Worker 7.0600e-003

5.3500e-003

0.0578 1.5000e-004

0.0151 1.3000e-004

0.0152 3.9900e-003

1.2000e-004

4.1100e-003

15.3026 15.3026 5.2000e-004

15.3156

Total 7.0600e-003

5.3500e-003

0.0578 1.5000e-004

0.0151 1.3000e-004

0.0152 3.9900e-003

1.2000e-004

4.1100e-003

15.3026 15.3026 5.2000e-004

15.3156



Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Archit. Coating 2.0451 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Off-Road 0.1139 2.3524 1.8324 2.9700e-003

0.0951 0.0951 0.0951 0.0951 0.0000 281.4481 281.4481 0.0238 282.0423

Total 2.1590 2.3524 1.8324 2.9700e-003

0.0951 0.0951 0.0951 0.0951 0.0000 281.4481 281.4481 0.0238 282.0423




4.0 Operational Detail - Mobile

4.1 Mitigation Measures Mobile



Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Vendor 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Worker 7.0600e-003

5.3500e-003

0.0578 1.5000e-004

0.0151 1.3000e-004

0.0152 3.9900e-003

1.2000e-004

4.1100e-003

15.3026 15.3026 5.2000e-004

15.3156

Total 7.0600e-003

5.3500e-003

0.0578 1.5000e-004

0.0151 1.3000e-004

0.0152 3.9900e-003

1.2000e-004

4.1100e-003

15.3026 15.3026 5.2000e-004

15.3156





Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Mitigated 0.1691 0.8876 2.5686 8.6900e-003

0.7169 9.0800e-003

0.7260 0.1919 8.5100e-003

0.2004 882.5605 882.5605 0.0489 883.7822

Unmitigated 0.1691 0.8876 2.5686 8.6900e-003

0.7169 9.0800e-003

0.7260 0.1919 8.5100e-003

0.2004 882.5605 882.5605 0.0489 883.7822

4.2 Trip Summary Information

4.3 Trip Type Information

Average Daily Trip Rate Unmitigated Mitigated

Land Use Weekday Saturday Sunday Annual VMT Annual VMT

Other Asphalt Surfaces 0.00 0.00 0.00

Single Family Housing 66.64 69.37 60.34 321,380 321,380

Total 66.64 69.37 60.34 321,380 321,380

Miles Trip % Trip Purpose %

Land Use H-W or C-W H-S or C-C H-O or C-NW H-W or C-W H-S or C-C H-O or C-NW Primary Diverted Pass-by

Other Asphalt Surfaces 18.50 10.10 7.90 0.00 0.00 0.00 0 0 0

Single Family Housing 19.80 9.60 12.90 40.20 19.20 40.60 86 11 3

4.4 Fleet Mix

Land Use LDA LDT1 LDT2 MDV LHD1 LHD2 MHD HHD OBUS UBUS MCY SBUS MH

Other Asphalt Surfaces 0.548007 0.045751 0.200309 0.124119 0.017133 0.006025 0.018861 0.028423 0.002391 0.002469 0.004915 0.000672 0.000925

Single Family Housing 0.548007 0.045751 0.200309 0.124119 0.017133 0.006025 0.018861 0.028423 0.002391 0.002469 0.004915 0.000672 0.000925



5.0 Energy Detail


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



NaturalGas Mitigated

6.4500e-003

0.0551 0.0235 3.5000e-004

4.4600e-003

4.4600e-003

4.4600e-003

4.4600e-003

70.3907 70.3907 1.3500e-003

1.2900e-003

70.8090

NaturalGas Unmitigated

6.4500e-003

0.0551 0.0235 3.5000e-004

4.4600e-003

4.4600e-003

4.4600e-003

4.4600e-003

70.3907 70.3907 1.3500e-003

1.2900e-003

70.8090

5.1 Mitigation Measures Energy

Historical Energy Use: N



6.1 Mitigation Measures Area

6.0 Area Detail

5.2 Energy by Land Use - NaturalGas

NaturalGas Use


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total


Land Use kBTU/yr lb/day lb/day

Other Asphalt Surfaces

0 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Single Family Housing

598.321 6.4500e-003

0.0551 0.0235 3.5000e-004

4.4600e-003

4.4600e-003

4.4600e-003

4.4600e-003

70.3907 70.3907 1.3500e-003

1.2900e-003

70.8090

Total 6.4500e-003

0.0551 0.0235 3.5000e-004

4.4600e-003

4.4600e-003

4.4600e-003

4.4600e-003

70.3907 70.3907 1.3500e-003

1.2900e-003

70.8090

Unmitigated

NaturalGas Use


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total




0 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000


0.598321 6.4500e-003

0.0551 0.0235 3.5000e-004

4.4600e-003

4.4600e-003

4.4600e-003

4.4600e-003

70.3907 70.3907 1.3500e-003

1.2900e-003

70.8090

Total 6.4500e-003

0.0551 0.0235 3.5000e-004

4.4600e-003

4.4600e-003

4.4600e-003

4.4600e-003

70.3907 70.3907 1.3500e-003

1.2900e-003

70.8090

Mitigated



Use Low VOC Paint - Residential Interior

Use Low VOC Paint - Residential Exterior

Use Low VOC Paint - Non-Residential Exterior

Use only Natural Gas Hearths


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Mitigated 1.0840 0.1054 0.6225 6.6000e-004

0.0112 0.0112 0.0112 0.0112 0.0000 127.0401 127.0401 3.4400e-003

2.3100e-003

127.8144

Unmitigated 1.0840 0.1054 0.6225 6.6000e-004

0.0112 0.0112 0.0112 0.0112 0.0000 127.0401 127.0401 3.4400e-003

2.3100e-003

127.8144



6.2 Area by SubCategory


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total


SubCategory lb/day lb/day

Architectural Coating

0.0841 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Consumer Products

0.9706 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Hearth 0.0116 0.0987 0.0420 6.3000e-004

7.9800e-003

7.9800e-003

7.9800e-003

7.9800e-003

0.0000 126.0000 126.0000 2.4100e-003

2.3100e-003

126.7488

Landscaping 0.0178 6.7200e-003

0.5805 3.0000e-005

3.1800e-003

3.1800e-003

3.1800e-003

3.1800e-003

1.0401 1.0401 1.0200e-003

1.0657

Total 1.0840 0.1054 0.6225 6.6000e-004

0.0112 0.0112 0.0112 0.0112 0.0000 127.0401 127.0401 3.4300e-003

2.3100e-003

127.8144

Unmitigated



8.1 Mitigation Measures Waste

7.1 Mitigation Measures Water

7.0 Water Detail

8.0 Waste Detail



Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total




0.0841 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Consumer Products

0.9706 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Hearth 0.0116 0.0987 0.0420 6.3000e-004

7.9800e-003

7.9800e-003

7.9800e-003

7.9800e-003

0.0000 126.0000 126.0000 2.4100e-003

2.3100e-003

126.7488


0.5805 3.0000e-005

3.1800e-003

3.1800e-003

3.1800e-003

3.1800e-003

1.0401 1.0401 1.0200e-003

1.0657

Total 1.0840 0.1054 0.6225 6.6000e-004

0.0112 0.0112 0.0112 0.0112 0.0000 127.0401 127.0401 3.4300e-003

2.3100e-003

127.8144

Mitigated

9.0 Operational Offroad

Equipment Type Number Hours/Day Days/Year Horse Power Load Factor Fuel Type

10.0 Stationary Equipment



11.0 Vegetation

Fire Pumps and Emergency Generators

Equipment Type Number Hours/Day Hours/Year Horse Power Load Factor Fuel Type

Boilers

Equipment Type Number Heat Input/Day Heat Input/Year Boiler Rating Fuel Type

User Defined Equipment

Equipment Type Number



1.1 Land Usage





Urbanization

Climate Zone

Rural

8









Hidden Hills VTM 63567Los Angeles-South Coast County, Summer


Hidden Hills VTM 63567 - Los Angeles-South Coast County, Summer








Energy Use -


Area Mitigation -


















2.1 Overall Construction (Maximum Daily Emission)


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total


Year lb/day lb/day

2017 6.2995 80.1739 42.8739 0.0940 18.3372 3.1394 21.2182 10.0025 2.8906 12.6531 0.0000 9,765.5843

9,765.5843

2.1731 0.0000 9,819.9116

2018 5.5753 70.8849 38.8377 0.0936 14.6808 2.6792 17.3600 5.0915 2.4664 7.5579 0.0000 9,630.5095

9,630.5095

2.1664 0.0000 9,684.6698

2019 4.7025 23.0570 19.2916 0.0308 0.2408 1.4200 1.4875 0.0639 1.3428 1.3608 0.0000 2,969.0840

2,969.0840

0.7467 0.0000 2,985.5645

Maximum 6.2995 80.1739 42.8739 0.0940 18.3372 3.1394 21.2182 10.0025 2.8906 12.6531 0.0000 9,765.5843

9,765.5843

2.1731 0.0000 9,819.9116



Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total


Year lb/day lb/day

2017 2.3618 63.4730 40.8139 0.0940 7.3168 1.4000 8.2654 3.9448 1.3970 4.8933 0.0000 9,765.5843

9,765.5843

2.1731 0.0000 9,819.9116

2018 3.2728 62.6017 40.4709 0.0936 9.3708 1.3788 10.7496 2.8947 1.3767 4.2714 0.0000 9,630.5095

9,630.5095

2.1664 0.0000 9,684.6698

2019 3.2696 26.0497 20.1423 0.0308 0.2408 1.0000 1.0675 0.0639 0.9999 1.0180 0.0000 2,969.0840

2,969.0840

0.7467 0.0000 2,985.5645

Maximum 3.2728 63.4730 40.8139 0.0940 9.3708 1.4000 10.7496 3.9448 1.3970 4.8933 0.0000 9,765.5843

9,765.5843

2.1731 0.0000 9,819.9116





Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total


Percent Reduction

46.29 12.63 -0.42 0.00 49.10 47.80 49.88 54.46 43.68 52.80 0.00 0.00 0.00 0.00 0.00 0.00





Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Area 1.0840 0.1054 0.6225 6.6000e-004

0.0112 0.0112 0.0112 0.0112 0.0000 127.0401 127.0401 3.4400e-003

2.3100e-003

127.8144

Energy 6.4500e-003

0.0551 0.0235 3.5000e-004

4.4600e-003

4.4600e-003

4.4600e-003

4.4600e-003

70.3907 70.3907 1.3500e-003

1.2900e-003

70.8090

Mobile 0.1737 0.8575 2.7359 9.1300e-003

0.7169 9.0500e-003

0.7259 0.1919 8.4800e-003

0.2004 927.1627 927.1627 0.0494 928.3987

Total 1.2642 1.0180 3.3819 0.0101 0.7169 0.0247 0.7416 0.1919 0.0241 0.2160 0.0000 1,124.5935

1,124.5935

0.0542 3.6000e-003

1,127.0221



Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Area 1.0840 0.1054 0.6225 6.6000e-004

0.0112 0.0112 0.0112 0.0112 0.0000 127.0401 127.0401 3.4400e-003

2.3100e-003

127.8144

Energy 6.4500e-003

0.0551 0.0235 3.5000e-004

4.4600e-003

4.4600e-003

4.4600e-003

4.4600e-003

70.3907 70.3907 1.3500e-003

1.2900e-003

70.8090

Mobile 0.1737 0.8575 2.7359 9.1300e-003

0.7169 9.0500e-003

0.7259 0.1919 8.4800e-003

0.2004 927.1627 927.1627 0.0494 928.3987

Total 1.2642 1.0180 3.3819 0.0101 0.7169 0.0247 0.7416 0.1919 0.0241 0.2160 0.0000 1,124.5935

1,124.5935

0.0542 3.6000e-003

1,127.0221





Construction Phase

Phase Number





3 Grading Grading 10/14/2017 1/5/2018 5 60


5 Paving Paving 3/2/2019 3/29/2019 5 20


OffRoad Equipment


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total


Percent Reduction

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00



























Trips and VMT





Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Off-Road 4.1031 42.7475 23.0122 0.0388 2.1935 2.1935 2.0425 2.0425 3,924.2833

3,924.2833

1.0730 3,951.1070

Total 4.1031 42.7475 23.0122 0.0388 2.1935 2.1935 2.0425 2.0425 3,924.2833

3,924.2833

1.0730 3,951.1070




Water Exposed Area


Clean Paved Roads


Worker Trip Number

Vendor Trip Number

Hauling Trip Number

Worker Trip Length

Vendor Trip Length

Hauling Trip Length














Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Vendor 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Worker 0.1185 0.0946 1.2139 2.6100e-003

0.2258 2.0600e-003

0.2279 0.0599 1.9000e-003

0.0618 259.1020 259.1020 0.0106 259.3679

Total 0.1185 0.0946 1.2139 2.6100e-003

0.2258 2.0600e-003

0.2279 0.0599 1.9000e-003

0.0618 259.1020 259.1020 0.0106 259.3679



Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Off-Road 1.2617 32.6638 24.6739 0.0388 0.9135 0.9135 0.9135 0.9135 0.0000 3,924.2833

3,924.2833

1.0730 3,951.1070

Total 1.2617 32.6638 24.6739 0.0388 0.9135 0.9135 0.9135 0.9135 0.0000 3,924.2833

3,924.2833

1.0730 3,951.1070






Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Vendor 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Worker 0.1185 0.0946 1.2139 2.6100e-003

0.2258 2.0600e-003

0.2279 0.0599 1.9000e-003

0.0618 259.1020 259.1020 0.0106 259.3679

Total 0.1185 0.0946 1.2139 2.6100e-003

0.2258 2.0600e-003

0.2279 0.0599 1.9000e-003

0.0618 259.1020 259.1020 0.0106 259.3679




Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Fugitive Dust 18.0663 0.0000 18.0663 9.9307 0.0000 9.9307 0.0000 0.0000

Off-Road 4.9608 52.2754 23.4554 0.0380 2.8786 2.8786 2.6483 2.6483 3,894.9500

3,894.9500

1.1934 3,924.7852

Total 4.9608 52.2754 23.4554 0.0380 18.0663 2.8786 20.9448 9.9307 2.6483 12.5790 3,894.9500

3,894.9500

1.1934 3,924.7852






Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Vendor 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Worker 0.1422 0.1135 1.4567 3.1300e-003

0.2709 2.4800e-003

0.2734 0.0719 2.2800e-003

0.0741 310.9224 310.9224 0.0128 311.2414

Total 0.1422 0.1135 1.4567 3.1300e-003

0.2709 2.4800e-003

0.2734 0.0719 2.2800e-003

0.0741 310.9224 310.9224 0.0128 311.2414



Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Fugitive Dust 7.0458 0.0000 7.0458 3.8730 0.0000 3.8730 0.0000 0.0000

Off-Road 1.2097 33.7214 22.9600 0.0380 0.9462 0.9462 0.9462 0.9462 0.0000 3,894.9500

3,894.9500

1.1934 3,924.7852

Total 1.2097 33.7214 22.9600 0.0380 7.0458 0.9462 7.9920 3.8730 0.9462 4.8191 0.0000 3,894.9500

3,894.9500

1.1934 3,924.7852






Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Vendor 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Worker 0.1422 0.1135 1.4567 3.1300e-003

0.2709 2.4800e-003

0.2734 0.0719 2.2800e-003

0.0741 310.9224 310.9224 0.0128 311.2414

Total 0.1422 0.1135 1.4567 3.1300e-003

0.2709 2.4800e-003

0.2734 0.0719 2.2800e-003

0.0741 310.9224 310.9224 0.0128 311.2414


3.4 Grading - 2017


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Fugitive Dust 8.7049 0.0000 8.7049 3.6013 0.0000 3.6013 0.0000 0.0000

Off-Road 5.7483 67.9396 38.7826 0.0620 3.0727 3.0727 2.8269 2.8269 6,344.8863

6,344.8863

1.9441 6,393.4879

Total 5.7483 67.9396 38.7826 0.0620 8.7049 3.0727 11.7776 3.6013 2.8269 6.4282 6,344.8863

6,344.8863

1.9441 6,393.4879




3.4 Grading - 2017


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 0.3932 12.1082 2.4728 0.0285 0.6508 0.0640 0.7148 0.1772 0.0612 0.2384 3,075.2286

3,075.2286

0.2149 3,080.5999

Vendor 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Worker 0.1580 0.1261 1.6185 3.4800e-003

0.3010 2.7500e-003

0.3038 0.0798 2.5400e-003

0.0824 345.4694 345.4694 0.0142 345.8238

Total 0.5512 12.2343 4.0913 0.0320 0.9519 0.0667 1.0186 0.2570 0.0637 0.3208 3,420.6980

3,420.6980

0.2290 3,426.4237



Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Fugitive Dust 3.3949 0.0000 3.3949 1.4045 0.0000 1.4045 0.0000 0.0000

Off-Road 1.8106 51.2386 36.7226 0.0620 1.3333 1.3333 1.3333 1.3333 0.0000 6,344.8863

6,344.8863

1.9441 6,393.4878

Total 1.8106 51.2386 36.7226 0.0620 3.3949 1.3333 4.7282 1.4045 1.3333 2.7378 0.0000 6,344.8863

6,344.8863

1.9441 6,393.4878




3.4 Grading - 2017


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 0.3932 12.1082 2.4728 0.0285 0.6508 0.0640 0.7148 0.1772 0.0612 0.2384 3,075.2286

3,075.2286

0.2149 3,080.5999

Vendor 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Worker 0.1580 0.1261 1.6185 3.4800e-003

0.3010 2.7500e-003

0.3038 0.0798 2.5400e-003

0.0824 345.4694 345.4694 0.0142 345.8238

Total 0.5512 12.2343 4.0913 0.0320 0.9519 0.0667 1.0186 0.2570 0.0637 0.3208 3,420.6980

3,420.6980

0.2290 3,426.4237


3.4 Grading - 2018


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Fugitive Dust 8.7049 0.0000 8.7049 3.6013 0.0000 3.6013 0.0000 0.0000

Off-Road 5.0901 59.5218 35.0894 0.0620 2.6337 2.6337 2.4230 2.4230 6,244.4284

6,244.4284

1.9440 6,293.0278

Total 5.0901 59.5218 35.0894 0.0620 8.7049 2.6337 11.3386 3.6013 2.4230 6.0243 6,244.4284

6,244.4284

1.9440 6,293.0278




3.4 Grading - 2018


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 0.3458 11.2534 2.3285 0.0282 5.6749 0.0428 5.7177 1.4104 0.0410 1.4513 3,050.0574

3,050.0574

0.2100 3,055.3067

Vendor 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Worker 0.1394 0.1097 1.4199 3.3800e-003

0.3010 2.6400e-003

0.3037 0.0798 2.4300e-003

0.0823 336.0237 336.0237 0.0125 336.3353

Total 0.4852 11.3631 3.7484 0.0316 5.9759 0.0455 6.0214 1.4902 0.0434 1.5336 3,386.0811

3,386.0811

0.2224 3,391.6420



Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Fugitive Dust 3.3949 0.0000 3.3949 1.4045 0.0000 1.4045 0.0000 0.0000

Off-Road 1.8106 51.2386 36.7226 0.0620 1.3333 1.3333 1.3333 1.3333 0.0000 6,244.4284

6,244.4284

1.9440 6,293.0278

Total 1.8106 51.2386 36.7226 0.0620 3.3949 1.3333 4.7282 1.4045 1.3333 2.7378 0.0000 6,244.4284

6,244.4284

1.9440 6,293.0278




3.4 Grading - 2018


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 0.3458 11.2534 2.3285 0.0282 5.6749 0.0428 5.7177 1.4104 0.0410 1.4513 3,050.0574

3,050.0574

0.2100 3,055.3067

Vendor 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Worker 0.1394 0.1097 1.4199 3.3800e-003

0.3010 2.6400e-003

0.3037 0.0798 2.4300e-003

0.0823 336.0237 336.0237 0.0125 336.3353

Total 0.4852 11.3631 3.7484 0.0316 5.9759 0.0455 6.0214 1.4902 0.0434 1.5336 3,386.0811

3,386.0811

0.2224 3,391.6420




Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Off-Road 2.6795 23.3900 17.5804 0.0269 1.4999 1.4999 1.4099 1.4099 2,620.9351

2,620.9351

0.6421 2,636.9883

Total 2.6795 23.3900 17.5804 0.0269 1.4999 1.4999 1.4099 1.4099 2,620.9351

2,620.9351

0.6421 2,636.9883






Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Vendor 5.0100e-003

0.1311 0.0359 2.9000e-004

7.3300e-003

9.8000e-004

8.3100e-003

2.1100e-003

9.4000e-004

3.0500e-003

31.3619 31.3619 1.9700e-003

31.4112

Worker 0.0209 0.0165 0.2130 5.1000e-004

0.0452 4.0000e-004

0.0456 0.0120 3.6000e-004

0.0123 50.4036 50.4036 1.8700e-003

50.4503

Total 0.0259 0.1476 0.2489 8.0000e-004

0.0525 1.3800e-003

0.0539 0.0141 1.3000e-003

0.0154 81.7654 81.7654 3.8400e-003

81.8615



Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Off-Road 1.0809 23.5544 17.8738 0.0269 0.9036 0.9036 0.9036 0.9036 0.0000 2,620.9351

2,620.9351

0.6421 2,636.9883

Total 1.0809 23.5544 17.8738 0.0269 0.9036 0.9036 0.9036 0.9036 0.0000 2,620.9351

2,620.9351

0.6421 2,636.9883






Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Vendor 5.0100e-003

0.1311 0.0359 2.9000e-004

7.3300e-003

9.8000e-004

8.3100e-003

2.1100e-003

9.4000e-004

3.0500e-003

31.3619 31.3619 1.9700e-003

31.4112

Worker 0.0209 0.0165 0.2130 5.1000e-004

0.0452 4.0000e-004

0.0456 0.0120 3.6000e-004

0.0123 50.4036 50.4036 1.8700e-003

50.4503

Total 0.0259 0.1476 0.2489 8.0000e-004

0.0525 1.3800e-003

0.0539 0.0141 1.3000e-003

0.0154 81.7654 81.7654 3.8400e-003

81.8615




Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Off-Road 2.3612 21.0788 17.1638 0.0269 1.2899 1.2899 1.2127 1.2127 2,591.5802

2,591.5802

0.6313 2,607.3635

Total 2.3612 21.0788 17.1638 0.0269 1.2899 1.2899 1.2127 1.2127 2,591.5802

2,591.5802

0.6313 2,607.3635






Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Vendor 4.5300e-003

0.1235 0.0329 2.9000e-004

7.3300e-003

8.4000e-004

8.1600e-003

2.1100e-003

8.0000e-004

2.9100e-003

31.0363 31.0363 1.9000e-003

31.0839

Worker 0.0189 0.0145 0.1902 4.9000e-004

0.0452 3.8000e-004

0.0455 0.0120 3.5000e-004

0.0123 48.7646 48.7646 1.6600e-003

48.8061

Total 0.0234 0.1380 0.2231 7.8000e-004

0.0525 1.2200e-003

0.0537 0.0141 1.1500e-003

0.0152 79.8009 79.8009 3.5600e-003

79.8900



Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Off-Road 1.0809 23.5544 17.8738 0.0269 0.9036 0.9036 0.9036 0.9036 0.0000 2,591.5802

2,591.5802

0.6313 2,607.3635

Total 1.0809 23.5544 17.8738 0.0269 0.9036 0.9036 0.9036 0.9036 0.0000 2,591.5802

2,591.5802

0.6313 2,607.3635






Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Vendor 4.5300e-003

0.1235 0.0329 2.9000e-004

7.3300e-003

8.4000e-004

8.1600e-003

2.1100e-003

8.0000e-004

2.9100e-003

31.0363 31.0363 1.9000e-003

31.0839

Worker 0.0189 0.0145 0.1902 4.9000e-004

0.0452 3.8000e-004

0.0455 0.0120 3.5000e-004

0.0123 48.7646 48.7646 1.6600e-003

48.8061

Total 0.0234 0.1380 0.2231 7.8000e-004

0.0525 1.2200e-003

0.0537 0.0141 1.1500e-003

0.0152 79.8009 79.8009 3.5600e-003

79.8900


3.6 Paving - 2019


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Off-Road 1.4544 15.2441 14.6648 0.0228 0.8246 0.8246 0.7586 0.7586 2,257.0025

2,257.0025

0.7141 2,274.8548

Paving 3.9300e-003

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Total 1.4584 15.2441 14.6648 0.0228 0.8246 0.8246 0.7586 0.7586 2,257.0025

2,257.0025

0.7141 2,274.8548




3.6 Paving - 2019


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Vendor 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Worker 0.0946 0.0725 0.9509 2.4500e-003

0.2258 1.9100e-003

0.2277 0.0599 1.7600e-003

0.0616 243.8232 243.8232 8.2900e-003

244.0303

Total 0.0946 0.0725 0.9509 2.4500e-003

0.2258 1.9100e-003

0.2277 0.0599 1.7600e-003

0.0616 243.8232 243.8232 8.2900e-003

244.0303



Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Off-Road 0.9311 20.1146 17.2957 0.0228 0.6670 0.6670 0.6670 0.6670 0.0000 2,257.0025

2,257.0025

0.7141 2,274.8548

Paving 3.9300e-003

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Total 0.9350 20.1146 17.2957 0.0228 0.6670 0.6670 0.6670 0.6670 0.0000 2,257.0025

2,257.0025

0.7141 2,274.8548




3.6 Paving - 2019


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Vendor 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Worker 0.0946 0.0725 0.9509 2.4500e-003

0.2258 1.9100e-003

0.2277 0.0599 1.7600e-003

0.0616 243.8232 243.8232 8.2900e-003

244.0303

Total 0.0946 0.0725 0.9509 2.4500e-003

0.2258 1.9100e-003

0.2277 0.0599 1.7600e-003

0.0616 243.8232 243.8232 8.2900e-003

244.0303




Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Archit. Coating 2.0451 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Off-Road 0.2986 2.0058 1.8542 2.9700e-003

0.1506 0.1506 0.1506 0.1506 281.4485 281.4485 0.0267 282.1171

Total 2.3438 2.0058 1.8542 2.9700e-003

0.1506 0.1506 0.1506 0.1506 281.4485 281.4485 0.0267 282.1171






Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Vendor 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Worker 6.9700e-003

5.4800e-003

0.0710 1.7000e-004

0.0151 1.3000e-004

0.0152 3.9900e-003

1.2000e-004

4.1100e-003

16.8012 16.8012 6.2000e-004

16.8168

Total 6.9700e-003

5.4800e-003

0.0710 1.7000e-004

0.0151 1.3000e-004

0.0152 3.9900e-003

1.2000e-004

4.1100e-003

16.8012 16.8012 6.2000e-004

16.8168



Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Archit. Coating 2.0451 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Off-Road 0.1139 2.3524 1.8324 2.9700e-003

0.0951 0.0951 0.0951 0.0951 0.0000 281.4485 281.4485 0.0267 282.1171

Total 2.1590 2.3524 1.8324 2.9700e-003

0.0951 0.0951 0.0951 0.0951 0.0000 281.4485 281.4485 0.0267 282.1171






Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Vendor 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Worker 6.9700e-003

5.4800e-003

0.0710 1.7000e-004

0.0151 1.3000e-004

0.0152 3.9900e-003

1.2000e-004

4.1100e-003

16.8012 16.8012 6.2000e-004

16.8168

Total 6.9700e-003

5.4800e-003

0.0710 1.7000e-004

0.0151 1.3000e-004

0.0152 3.9900e-003

1.2000e-004

4.1100e-003

16.8012 16.8012 6.2000e-004

16.8168




Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Archit. Coating 2.0451 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Off-Road 0.2664 1.8354 1.8413 2.9700e-003

0.1288 0.1288 0.1288 0.1288 281.4481 281.4481 0.0238 282.0423

Total 2.3116 1.8354 1.8413 2.9700e-003

0.1288 0.1288 0.1288 0.1288 281.4481 281.4481 0.0238 282.0423






Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Vendor 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Worker 6.3000e-003

4.8300e-003

0.0634 1.6000e-004

0.0151 1.3000e-004

0.0152 3.9900e-003

1.2000e-004

4.1100e-003

16.2549 16.2549 5.5000e-004

16.2687

Total 6.3000e-003

4.8300e-003

0.0634 1.6000e-004

0.0151 1.3000e-004

0.0152 3.9900e-003

1.2000e-004

4.1100e-003

16.2549 16.2549 5.5000e-004

16.2687



Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Archit. Coating 2.0451 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Off-Road 0.1139 2.3524 1.8324 2.9700e-003

0.0951 0.0951 0.0951 0.0951 0.0000 281.4481 281.4481 0.0238 282.0423

Total 2.1590 2.3524 1.8324 2.9700e-003

0.0951 0.0951 0.0951 0.0951 0.0000 281.4481 281.4481 0.0238 282.0423








Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Vendor 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Worker 6.3000e-003

4.8300e-003

0.0634 1.6000e-004

0.0151 1.3000e-004

0.0152 3.9900e-003

1.2000e-004

4.1100e-003

16.2549 16.2549 5.5000e-004

16.2687

Total 6.3000e-003

4.8300e-003

0.0634 1.6000e-004

0.0151 1.3000e-004

0.0152 3.9900e-003

1.2000e-004

4.1100e-003

16.2549 16.2549 5.5000e-004

16.2687





Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Mitigated 0.1737 0.8575 2.7359 9.1300e-003

0.7169 9.0500e-003

0.7259 0.1919 8.4800e-003

0.2004 927.1627 927.1627 0.0494 928.3987

Unmitigated 0.1737 0.8575 2.7359 9.1300e-003

0.7169 9.0500e-003

0.7259 0.1919 8.4800e-003

0.2004 927.1627 927.1627 0.0494 928.3987







Total 66.64 69.37 60.34 321,380 321,380





4.4 Fleet Mix






5.0 Energy Detail


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total




6.4500e-003

0.0551 0.0235 3.5000e-004

4.4600e-003

4.4600e-003

4.4600e-003

4.4600e-003

70.3907 70.3907 1.3500e-003

1.2900e-003

70.8090


6.4500e-003

0.0551 0.0235 3.5000e-004

4.4600e-003

4.4600e-003

4.4600e-003

4.4600e-003

70.3907 70.3907 1.3500e-003

1.2900e-003

70.8090






6.0 Area Detail


NaturalGas Use


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total




0 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000


598.321 6.4500e-003

0.0551 0.0235 3.5000e-004

4.4600e-003

4.4600e-003

4.4600e-003

4.4600e-003

70.3907 70.3907 1.3500e-003

1.2900e-003

70.8090

Total 6.4500e-003

0.0551 0.0235 3.5000e-004

4.4600e-003

4.4600e-003

4.4600e-003

4.4600e-003

70.3907 70.3907 1.3500e-003

1.2900e-003

70.8090

Unmitigated

NaturalGas Use


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total




0 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000


0.598321 6.4500e-003

0.0551 0.0235 3.5000e-004

4.4600e-003

4.4600e-003

4.4600e-003

4.4600e-003

70.3907 70.3907 1.3500e-003

1.2900e-003

70.8090

Total 6.4500e-003

0.0551 0.0235 3.5000e-004

4.4600e-003

4.4600e-003

4.4600e-003

4.4600e-003

70.3907 70.3907 1.3500e-003

1.2900e-003

70.8090

Mitigated








Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Mitigated 1.0840 0.1054 0.6225 6.6000e-004

0.0112 0.0112 0.0112 0.0112 0.0000 127.0401 127.0401 3.4400e-003

2.3100e-003

127.8144

Unmitigated 1.0840 0.1054 0.6225 6.6000e-004

0.0112 0.0112 0.0112 0.0112 0.0000 127.0401 127.0401 3.4400e-003

2.3100e-003

127.8144





Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total




0.0841 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Consumer Products

0.9706 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Hearth 0.0116 0.0987 0.0420 6.3000e-004

7.9800e-003

7.9800e-003

7.9800e-003

7.9800e-003

0.0000 126.0000 126.0000 2.4100e-003

2.3100e-003

126.7488


0.5805 3.0000e-005

3.1800e-003

3.1800e-003

3.1800e-003

3.1800e-003

1.0401 1.0401 1.0200e-003

1.0657

Total 1.0840 0.1054 0.6225 6.6000e-004

0.0112 0.0112 0.0112 0.0112 0.0000 127.0401 127.0401 3.4300e-003

2.3100e-003

127.8144

Unmitigated





7.0 Water Detail

8.0 Waste Detail



Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total




0.0841 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Consumer Products

0.9706 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Hearth 0.0116 0.0987 0.0420 6.3000e-004

7.9800e-003

7.9800e-003

7.9800e-003

7.9800e-003

0.0000 126.0000 126.0000 2.4100e-003

2.3100e-003

126.7488


0.5805 3.0000e-005

3.1800e-003

3.1800e-003

3.1800e-003

3.1800e-003

1.0401 1.0401 1.0200e-003

1.0657

Total 1.0840 0.1054 0.6225 6.6000e-004

0.0112 0.0112 0.0112 0.0112 0.0000 127.0401 127.0401 3.4300e-003

2.3100e-003

127.8144

Mitigated






11.0 Vegetation



Boilers






1.1 Land Usage





Urbanization

Climate Zone

Rural

8









Hidden Hills VTM 63567Los Angeles-South Coast County, Annual


Hidden Hills VTM 63567 - Los Angeles-South Coast County, Annual








Energy Use -


Area Mitigation -


















2.1 Overall Construction


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total


Year tons/yr MT/yr

2017 0.2412 2.9074 1.5443 3.1900e-003

0.3807 0.1227 0.5034 0.1656 0.1132 0.2788 0.0000 299.6052 299.6052 0.0696 0.0000 301.3449

2018 0.4555 3.2732 2.4556 3.9000e-003

0.2829 0.2050 0.4879 0.1136 0.1929 0.3065 0.0000 346.2413 346.2413 0.0809 0.0000 348.2646

2019 0.1480 0.6837 0.6034 9.7000e-004

3.8600e-003

0.0411 0.0450 1.0300e-003

0.0388 0.0398 0.0000 85.1555 85.1555 0.0200 0.0000 85.6550

Maximum 0.4555 3.2732 2.4556 3.9000e-003

0.3807 0.2050 0.5034 0.1656 0.1929 0.3065 0.0000 346.2413 346.2413 0.0809 0.0000 348.2646



Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total


Year tons/yr MT/yr

2017 0.0857 2.2545 1.5018 3.1900e-003

0.1663 0.0524 0.2187 0.0694 0.0523 0.1217 0.0000 299.6049 299.6049 0.0696 0.0000 301.3447

2018 0.2352 3.2876 2.4963 3.9000e-003

0.1237 0.1231 0.2468 0.0477 0.1231 0.1708 0.0000 346.2409 346.2409 0.0809 0.0000 348.2642

2019 0.1093 0.8047 0.6450 9.7000e-004

3.8600e-003

0.0299 0.0337 1.0300e-003

0.0299 0.0309 0.0000 85.1554 85.1554 0.0200 0.0000 85.6549

Maximum 0.2352 3.2876 2.4963 3.9000e-003

0.1663 0.1231 0.2468 0.0694 0.1231 0.1708 0.0000 346.2409 346.2409 0.0809 0.0000 348.2642





Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total


Percent Reduction

49.07 7.54 -0.87 0.00 55.98 44.30 51.83 57.84 40.46 48.25 0.00 0.00 0.00 0.00 0.00 0.00

Quarter Start Date End Date Maximum Unmitigated ROG + NOX (tons/quarter) Maximum Mitigated ROG + NOX (tons/quarter)

1 9-4-2017 12-3-2017 2.3037 1.6962

2 12-4-2017 3-3-2018 1.5381 1.2819

3 3-4-2018 6-3-2018 0.8623 0.8152

4 6-4-2018 9-3-2018 0.8623 0.8151

5 9-4-2018 12-3-2018 0.9855 0.9438

6 12-4-2018 3-3-2019 0.9161 0.9402

7 3-4-2019 6-3-2019 0.2058 0.2505

Highest 2.3037 1.6962





Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total


Category tons/yr MT/yr

Area 0.1948 2.0700e-003

0.0731 1.0000e-005

5.0000e-004

5.0000e-004

5.0000e-004

5.0000e-004

0.0000 1.5468 1.5468 1.4000e-004

3.0000e-005

1.5582

Energy 1.1800e-003

0.0101 4.2800e-003

6.0000e-005

8.1000e-004

8.1000e-004

8.1000e-004

8.1000e-004

0.0000 30.7828 30.7828 1.0100e-003

3.8000e-004

30.9205

Mobile 0.0288 0.1570 0.4535 1.5300e-003

0.1220 1.5700e-003

0.1236 0.0327 1.4700e-003

0.0342 0.0000 140.7727 140.7727 7.6900e-003

0.0000 140.9649

Waste 0.0000 0.0000 0.0000 0.0000 1.6645 0.0000 1.6645 0.0984 0.0000 4.1238

Water 0.0000 0.0000 0.0000 0.0000 0.1447 2.9100 3.0547 0.0150 3.8000e-004

3.5412

Total 0.2248 0.1691 0.5309 1.6000e-003

0.1220 2.8800e-003

0.1249 0.0327 2.7800e-003

0.0355 1.8092 176.0122 177.8214 0.1222 7.9000e-004

181.1085






Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Area 0.1948 2.0700e-003

0.0731 1.0000e-005

5.0000e-004

5.0000e-004

5.0000e-004

5.0000e-004

0.0000 1.5468 1.5468 1.4000e-004

3.0000e-005

1.5582

Energy 1.1800e-003

0.0101 4.2800e-003

6.0000e-005

8.1000e-004

8.1000e-004

8.1000e-004

8.1000e-004

0.0000 30.7828 30.7828 1.0100e-003

3.8000e-004

30.9205

Mobile 0.0288 0.1570 0.4535 1.5300e-003

0.1220 1.5700e-003

0.1236 0.0327 1.4700e-003

0.0342 0.0000 140.7727 140.7727 7.6900e-003

0.0000 140.9649

Waste 0.0000 0.0000 0.0000 0.0000 1.6645 0.0000 1.6645 0.0984 0.0000 4.1238

Water 0.0000 0.0000 0.0000 0.0000 0.1447 2.9100 3.0547 0.0150 3.8000e-004

3.5412

Total 0.2248 0.1691 0.5309 1.6000e-003

0.1220 2.8800e-003

0.1249 0.0327 2.7800e-003

0.0355 1.8092 176.0122 177.8214 0.1222 7.9000e-004

181.1085



Construction Phase


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total


Percent Reduction

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00



Phase Number





3 Grading Grading 10/14/2017 1/5/2018 5 60


5 Paving Paving 3/2/2019 3/29/2019 5 20


OffRoad Equipment



























Trips and VMT





Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Off-Road 0.0410 0.4275 0.2301 3.9000e-004

0.0219 0.0219 0.0204 0.0204 0.0000 35.6005 35.6005 9.7300e-003

0.0000 35.8438

Total 0.0410 0.4275 0.2301 3.9000e-004

0.0219 0.0219 0.0204 0.0204 0.0000 35.6005 35.6005 9.7300e-003

0.0000 35.8438




Water Exposed Area


Clean Paved Roads


Worker Trip Number

Vendor Trip Number

Hauling Trip Number

Worker Trip Length

Vendor Trip Length

Hauling Trip Length














Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Vendor 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Worker 1.2000e-003

1.0800e-003

0.0115 2.0000e-005

2.2100e-003

2.0000e-005

2.2300e-003

5.9000e-004

2.0000e-005

6.1000e-004

0.0000 2.2501 2.2501 9.0000e-005

0.0000 2.2524

Total 1.2000e-003

1.0800e-003

0.0115 2.0000e-005

2.2100e-003

2.0000e-005

2.2300e-003

5.9000e-004

2.0000e-005

6.1000e-004

0.0000 2.2501 2.2501 9.0000e-005

0.0000 2.2524



Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Off-Road 0.0126 0.3266 0.2467 3.9000e-004

9.1400e-003

9.1400e-003

9.1400e-003

9.1400e-003

0.0000 35.6005 35.6005 9.7300e-003

0.0000 35.8438

Total 0.0126 0.3266 0.2467 3.9000e-004

9.1400e-003

9.1400e-003

9.1400e-003

9.1400e-003

0.0000 35.6005 35.6005 9.7300e-003

0.0000 35.8438






Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Vendor 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Worker 1.2000e-003

1.0800e-003

0.0115 2.0000e-005

2.2100e-003

2.0000e-005

2.2300e-003

5.9000e-004

2.0000e-005

6.1000e-004

0.0000 2.2501 2.2501 9.0000e-005

0.0000 2.2524

Total 1.2000e-003

1.0800e-003

0.0115 2.0000e-005

2.2100e-003

2.0000e-005

2.2300e-003

5.9000e-004

2.0000e-005

6.1000e-004

0.0000 2.2501 2.2501 9.0000e-005

0.0000 2.2524




Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Fugitive Dust 0.0903 0.0000 0.0903 0.0497 0.0000 0.0497 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Off-Road 0.0248 0.2614 0.1173 1.9000e-004

0.0144 0.0144 0.0132 0.0132 0.0000 17.6672 17.6672 5.4100e-003

0.0000 17.8025

Total 0.0248 0.2614 0.1173 1.9000e-004

0.0903 0.0144 0.1047 0.0497 0.0132 0.0629 0.0000 17.6672 17.6672 5.4100e-003

0.0000 17.8025






Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Vendor 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Worker 7.2000e-004

6.5000e-004

6.8700e-003

1.0000e-005

1.3300e-003

1.0000e-005

1.3400e-003

3.5000e-004

1.0000e-005

3.6000e-004

0.0000 1.3501 1.3501 6.0000e-005

0.0000 1.3515

Total 7.2000e-004

6.5000e-004

6.8700e-003

1.0000e-005

1.3300e-003

1.0000e-005

1.3400e-003

3.5000e-004

1.0000e-005

3.6000e-004

0.0000 1.3501 1.3501 6.0000e-005

0.0000 1.3515



Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Fugitive Dust 0.0352 0.0000 0.0352 0.0194 0.0000 0.0194 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Off-Road 6.0500e-003

0.1686 0.1148 1.9000e-004

4.7300e-003

4.7300e-003

4.7300e-003

4.7300e-003

0.0000 17.6672 17.6672 5.4100e-003

0.0000 17.8025

Total 6.0500e-003

0.1686 0.1148 1.9000e-004

0.0352 4.7300e-003

0.0400 0.0194 4.7300e-003

0.0241 0.0000 17.6672 17.6672 5.4100e-003

0.0000 17.8025






Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Vendor 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Worker 7.2000e-004

6.5000e-004

6.8700e-003

1.0000e-005

1.3300e-003

1.0000e-005

1.3400e-003

3.5000e-004

1.0000e-005

3.6000e-004

0.0000 1.3501 1.3501 6.0000e-005

0.0000 1.3515

Total 7.2000e-004

6.5000e-004

6.8700e-003

1.0000e-005

1.3300e-003

1.0000e-005

1.3400e-003

3.5000e-004

1.0000e-005

3.6000e-004

0.0000 1.3501 1.3501 6.0000e-005

0.0000 1.3515


3.4 Grading - 2017


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Fugitive Dust 0.2612 0.0000 0.2612 0.1080 0.0000 0.1080 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Off-Road 0.1581 1.8683 1.0665 1.7100e-003

0.0845 0.0845 0.0777 0.0777 0.0000 158.2896 158.2896 0.0485 0.0000 159.5021

Total 0.1581 1.8683 1.0665 1.7100e-003

0.2612 0.0845 0.3457 0.1080 0.0777 0.1858 0.0000 158.2896 158.2896 0.0485 0.0000 159.5021




3.4 Grading - 2017


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 0.0109 0.3445 0.0701 7.8000e-004

0.0176 1.7700e-003

0.0194 4.8000e-003

1.6900e-003

6.4900e-003

0.0000 76.1973 76.1973 5.4600e-003

0.0000 76.3337

Vendor 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Worker 4.4000e-003

3.9500e-003

0.0420 9.0000e-005

8.1200e-003

8.0000e-005

8.1900e-003

2.1600e-003

7.0000e-005

2.2300e-003

0.0000 8.2504 8.2504 3.4000e-004

0.0000 8.2589

Total 0.0153 0.3485 0.1121 8.7000e-004

0.0257 1.8500e-003

0.0276 6.9600e-003

1.7600e-003

8.7200e-003

0.0000 84.4477 84.4477 5.8000e-003

0.0000 84.5926



Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Fugitive Dust 0.1019 0.0000 0.1019 0.0421 0.0000 0.0421 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Off-Road 0.0498 1.4091 1.0099 1.7100e-003

0.0367 0.0367 0.0367 0.0367 0.0000 158.2894 158.2894 0.0485 0.0000 159.5019

Total 0.0498 1.4091 1.0099 1.7100e-003

0.1019 0.0367 0.1385 0.0421 0.0367 0.0788 0.0000 158.2894 158.2894 0.0485 0.0000 159.5019




3.4 Grading - 2017


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 0.0109 0.3445 0.0701 7.8000e-004

0.0176 1.7700e-003

0.0194 4.8000e-003

1.6900e-003

6.4900e-003

0.0000 76.1973 76.1973 5.4600e-003

0.0000 76.3337

Vendor 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Worker 4.4000e-003

3.9500e-003

0.0420 9.0000e-005

8.1200e-003

8.0000e-005

8.1900e-003

2.1600e-003

7.0000e-005

2.2300e-003

0.0000 8.2504 8.2504 3.4000e-004

0.0000 8.2589

Total 0.0153 0.3485 0.1121 8.7000e-004

0.0257 1.8500e-003

0.0276 6.9600e-003

1.7600e-003

8.7200e-003

0.0000 84.4477 84.4477 5.8000e-003

0.0000 84.5926


3.4 Grading - 2018


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Fugitive Dust 0.2612 0.0000 0.2612 0.1080 0.0000 0.1080 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Off-Road 0.0127 0.1488 0.0877 1.6000e-004

6.5800e-003

6.5800e-003

6.0600e-003

6.0600e-003

0.0000 14.1621 14.1621 4.4100e-003

0.0000 14.2724

Total 0.0127 0.1488 0.0877 1.6000e-004

0.2612 6.5800e-003

0.2677 0.1080 6.0600e-003

0.1141 0.0000 14.1621 14.1621 4.4100e-003

0.0000 14.2724




3.4 Grading - 2018


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 8.7000e-004

0.0291 6.0000e-003

7.0000e-005

0.0139 1.1000e-004

0.0140 3.4500e-003

1.0000e-004

3.5500e-003

0.0000 6.8688 6.8688 4.8000e-004

0.0000 6.8809

Vendor 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Worker 3.5000e-004

3.1000e-004

3.3300e-003

1.0000e-005

7.4000e-004

1.0000e-005

7.4000e-004

2.0000e-004

1.0000e-005

2.0000e-004

0.0000 0.7295 0.7295 3.0000e-005

0.0000 0.7301

Total 1.2200e-003

0.0294 9.3300e-003

8.0000e-005

0.0146 1.2000e-004

0.0147 3.6500e-003

1.1000e-004

3.7500e-003

0.0000 7.5983 7.5983 5.1000e-004

0.0000 7.6111



Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Fugitive Dust 0.1019 0.0000 0.1019 0.0421 0.0000 0.0421 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000


0.1281 0.0918 1.6000e-004

3.3300e-003

3.3300e-003

3.3300e-003

3.3300e-003

0.0000 14.1621 14.1621 4.4100e-003

0.0000 14.2723

Total 4.5300e-003

0.1281 0.0918 1.6000e-004

0.1019 3.3300e-003

0.1052 0.0421 3.3300e-003

0.0455 0.0000 14.1621 14.1621 4.4100e-003

0.0000 14.2723




3.4 Grading - 2018


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 8.7000e-004

0.0291 6.0000e-003

7.0000e-005

0.0139 1.1000e-004

0.0140 3.4500e-003

1.0000e-004

3.5500e-003

0.0000 6.8688 6.8688 4.8000e-004

0.0000 6.8809

Vendor 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Worker 3.5000e-004

3.1000e-004

3.3300e-003

1.0000e-005

7.4000e-004

1.0000e-005

7.4000e-004

2.0000e-004

1.0000e-005

2.0000e-004

0.0000 0.7295 0.7295 3.0000e-005

0.0000 0.7301

Total 1.2200e-003

0.0294 9.3300e-003

8.0000e-005

0.0146 1.2000e-004

0.0147 3.6500e-003

1.1000e-004

3.7500e-003

0.0000 7.5983 7.5983 5.1000e-004

0.0000 7.6111




Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Off-Road 0.3430 2.9939 2.2503 3.4400e-003

0.1920 0.1920 0.1805 0.1805 0.0000 304.3421 304.3421 0.0746 0.0000 306.2062

Total 0.3430 2.9939 2.2503 3.4400e-003

0.1920 0.1920 0.1805 0.1805 0.0000 304.3421 304.3421 0.0746 0.0000 306.2062






Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Vendor 6.5000e-004

0.0172 4.8100e-003

4.0000e-005

9.2000e-004

1.3000e-004

1.0500e-003

2.7000e-004

1.2000e-004

3.9000e-004

0.0000 3.6050 3.6050 2.4000e-004

0.0000 3.6109

Worker 2.7100e-003

2.4000e-003

0.0256 6.0000e-005

5.6700e-003

5.0000e-005

5.7200e-003

1.5000e-003

5.0000e-005

1.5500e-003

0.0000 5.6023 5.6023 2.1000e-004

0.0000 5.6075

Total 3.3600e-003

0.0196 0.0304 1.0000e-004

6.5900e-003

1.8000e-004

6.7700e-003

1.7700e-003

1.7000e-004

1.9400e-003

0.0000 9.2073 9.2073 4.5000e-004

0.0000 9.2184



Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Off-Road 0.1384 3.0150 2.2878 3.4400e-003

0.1157 0.1157 0.1157 0.1157 0.0000 304.3417 304.3417 0.0746 0.0000 306.2058

Total 0.1384 3.0150 2.2878 3.4400e-003

0.1157 0.1157 0.1157 0.1157 0.0000 304.3417 304.3417 0.0746 0.0000 306.2058






Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Vendor 6.5000e-004

0.0172 4.8100e-003

4.0000e-005

9.2000e-004

1.3000e-004

1.0500e-003

2.7000e-004

1.2000e-004

3.9000e-004

0.0000 3.6050 3.6050 2.4000e-004

0.0000 3.6109

Worker 2.7100e-003

2.4000e-003

0.0256 6.0000e-005

5.6700e-003

5.0000e-005

5.7200e-003

1.5000e-003

5.0000e-005

1.5500e-003

0.0000 5.6023 5.6023 2.1000e-004

0.0000 5.6075

Total 3.3600e-003

0.0196 0.0304 1.0000e-004

6.5900e-003

1.8000e-004

6.7700e-003

1.7700e-003

1.7000e-004

1.9400e-003

0.0000 9.2073 9.2073 4.5000e-004

0.0000 9.2184




Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Off-Road 0.0520 0.4637 0.3776 5.9000e-004

0.0284 0.0284 0.0267 0.0267 0.0000 51.7229 51.7229 0.0126 0.0000 52.0379

Total 0.0520 0.4637 0.3776 5.9000e-004

0.0284 0.0284 0.0267 0.0267 0.0000 51.7229 51.7229 0.0126 0.0000 52.0379






Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Vendor 1.0000e-004

2.7800e-003

7.6000e-004

1.0000e-005

1.6000e-004

2.0000e-005

1.8000e-004

5.0000e-005

2.0000e-005

6.0000e-005

0.0000 0.6131 0.6131 4.0000e-005

0.0000 0.6141

Worker 4.2000e-004

3.6000e-004

3.9200e-003

1.0000e-005

9.7000e-004

1.0000e-005

9.8000e-004

2.6000e-004

1.0000e-005

2.7000e-004

0.0000 0.9315 0.9315 3.0000e-005

0.0000 0.9323

Total 5.2000e-004

3.1400e-003

4.6800e-003

2.0000e-005

1.1300e-003

3.0000e-005

1.1600e-003

3.1000e-004

3.0000e-005

3.3000e-004

0.0000 1.5446 1.5446 7.0000e-005

0.0000 1.5464



Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Off-Road 0.0238 0.5182 0.3932 5.9000e-004

0.0199 0.0199 0.0199 0.0199 0.0000 51.7229 51.7229 0.0126 0.0000 52.0379

Total 0.0238 0.5182 0.3932 5.9000e-004

0.0199 0.0199 0.0199 0.0199 0.0000 51.7229 51.7229 0.0126 0.0000 52.0379






Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Vendor 1.0000e-004

2.7800e-003

7.6000e-004

1.0000e-005

1.6000e-004

2.0000e-005

1.8000e-004

5.0000e-005

2.0000e-005

6.0000e-005

0.0000 0.6131 0.6131 4.0000e-005

0.0000 0.6141

Worker 4.2000e-004

3.6000e-004

3.9200e-003

1.0000e-005

9.7000e-004

1.0000e-005

9.8000e-004

2.6000e-004

1.0000e-005

2.7000e-004

0.0000 0.9315 0.9315 3.0000e-005

0.0000 0.9323

Total 5.2000e-004

3.1400e-003

4.6800e-003

2.0000e-005

1.1300e-003

3.0000e-005

1.1600e-003

3.1000e-004

3.0000e-005

3.3000e-004

0.0000 1.5446 1.5446 7.0000e-005

0.0000 1.5464


3.6 Paving - 2019


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Off-Road 0.0145 0.1524 0.1467 2.3000e-004

8.2500e-003

8.2500e-003

7.5900e-003

7.5900e-003

0.0000 20.4752 20.4752 6.4800e-003

0.0000 20.6371

Paving 4.0000e-005

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Total 0.0146 0.1524 0.1467 2.3000e-004

8.2500e-003

8.2500e-003

7.5900e-003

7.5900e-003

0.0000 20.4752 20.4752 6.4800e-003

0.0000 20.6371




3.6 Paving - 2019


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Vendor 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Worker 9.6000e-004

8.2000e-004

8.9000e-003

2.0000e-005

2.2100e-003

2.0000e-005

2.2300e-003

5.9000e-004

2.0000e-005

6.1000e-004

0.0000 2.1171 2.1171 7.0000e-005

0.0000 2.1189

Total 9.6000e-004

8.2000e-004

8.9000e-003

2.0000e-005

2.2100e-003

2.0000e-005

2.2300e-003

5.9000e-004

2.0000e-005

6.1000e-004

0.0000 2.1171 2.1171 7.0000e-005

0.0000 2.1189



Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total




0.2012 0.1730 2.3000e-004

6.6700e-003

6.6700e-003

6.6700e-003

6.6700e-003

0.0000 20.4752 20.4752 6.4800e-003

0.0000 20.6371

Paving 4.0000e-005

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Total 9.3500e-003

0.2012 0.1730 2.3000e-004

6.6700e-003

6.6700e-003

6.6700e-003

6.6700e-003

0.0000 20.4752 20.4752 6.4800e-003

0.0000 20.6371




3.6 Paving - 2019


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Vendor 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Worker 9.6000e-004

8.2000e-004

8.9000e-003

2.0000e-005

2.2100e-003

2.0000e-005

2.2300e-003

5.9000e-004

2.0000e-005

6.1000e-004

0.0000 2.1171 2.1171 7.0000e-005

0.0000 2.1189

Total 9.6000e-004

8.2000e-004

8.9000e-003

2.0000e-005

2.2100e-003

2.0000e-005

2.2300e-003

5.9000e-004

2.0000e-005

6.1000e-004

0.0000 2.1171 2.1171 7.0000e-005

0.0000 2.1189




Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Archit. Coating 0.0828 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Off-Road 0.0121 0.0812 0.0751 1.2000e-004

6.1000e-003

6.1000e-003

6.1000e-003

6.1000e-003

0.0000 10.3407 10.3407 9.8000e-004

0.0000 10.3653

Total 0.0949 0.0812 0.0751 1.2000e-004

6.1000e-003

6.1000e-003

6.1000e-003

6.1000e-003

0.0000 10.3407 10.3407 9.8000e-004

0.0000 10.3653






Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Vendor 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Worker 2.9000e-004

2.5000e-004

2.7000e-003

1.0000e-005

6.0000e-004

1.0000e-005

6.0000e-004

1.6000e-004

0.0000 1.6000e-004

0.0000 0.5909 0.5909 2.0000e-005

0.0000 0.5914

Total 2.9000e-004

2.5000e-004

2.7000e-003

1.0000e-005

6.0000e-004

1.0000e-005

6.0000e-004

1.6000e-004

0.0000 1.6000e-004

0.0000 0.5909 0.5909 2.0000e-005

0.0000 0.5914



Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Archit. Coating 0.0828 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000


0.0953 0.0742 1.2000e-004

3.8500e-003

3.8500e-003

3.8500e-003

3.8500e-003

0.0000 10.3407 10.3407 9.8000e-004

0.0000 10.3653

Total 0.0874 0.0953 0.0742 1.2000e-004

3.8500e-003

3.8500e-003

3.8500e-003

3.8500e-003

0.0000 10.3407 10.3407 9.8000e-004

0.0000 10.3653






Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Vendor 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Worker 2.9000e-004

2.5000e-004

2.7000e-003

1.0000e-005

6.0000e-004

1.0000e-005

6.0000e-004

1.6000e-004

0.0000 1.6000e-004

0.0000 0.5909 0.5909 2.0000e-005

0.0000 0.5914

Total 2.9000e-004

2.5000e-004

2.7000e-003

1.0000e-005

6.0000e-004

1.0000e-005

6.0000e-004

1.6000e-004

0.0000 1.6000e-004

0.0000 0.5909 0.5909 2.0000e-005

0.0000 0.5914




Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Archit. Coating 0.0706 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000


0.0633 0.0635 1.0000e-004

4.4400e-003

4.4400e-003

4.4400e-003

4.4400e-003

0.0000 8.8087 8.8087 7.4000e-004

0.0000 8.8273

Total 0.0798 0.0633 0.0635 1.0000e-004

4.4400e-003

4.4400e-003

4.4400e-003

4.4400e-003

0.0000 8.8087 8.8087 7.4000e-004

0.0000 8.8273






Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Vendor 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Worker 2.2000e-004

1.9000e-004

2.0500e-003

1.0000e-005

5.1000e-004

0.0000 5.1000e-004

1.4000e-004

0.0000 1.4000e-004

0.0000 0.4869 0.4869 2.0000e-005

0.0000 0.4874

Total 2.2000e-004

1.9000e-004

2.0500e-003

1.0000e-005

5.1000e-004

0.0000 5.1000e-004

1.4000e-004

0.0000 1.4000e-004

0.0000 0.4869 0.4869 2.0000e-005

0.0000 0.4874



Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Archit. Coating 0.0706 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000


0.0812 0.0632 1.0000e-004

3.2800e-003

3.2800e-003

3.2800e-003

3.2800e-003

0.0000 8.8087 8.8087 7.4000e-004

0.0000 8.8273

Total 0.0745 0.0812 0.0632 1.0000e-004

3.2800e-003

3.2800e-003

3.2800e-003

3.2800e-003

0.0000 8.8087 8.8087 7.4000e-004

0.0000 8.8273








Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Vendor 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Worker 2.2000e-004

1.9000e-004

2.0500e-003

1.0000e-005

5.1000e-004

0.0000 5.1000e-004

1.4000e-004

0.0000 1.4000e-004

0.0000 0.4869 0.4869 2.0000e-005

0.0000 0.4874

Total 2.2000e-004

1.9000e-004

2.0500e-003

1.0000e-005

5.1000e-004

0.0000 5.1000e-004

1.4000e-004

0.0000 1.4000e-004

0.0000 0.4869 0.4869 2.0000e-005

0.0000 0.4874





Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Mitigated 0.0288 0.1570 0.4535 1.5300e-003

0.1220 1.5700e-003

0.1236 0.0327 1.4700e-003

0.0342 0.0000 140.7727 140.7727 7.6900e-003

0.0000 140.9649

Unmitigated 0.0288 0.1570 0.4535 1.5300e-003

0.1220 1.5700e-003

0.1236 0.0327 1.4700e-003

0.0342 0.0000 140.7727 140.7727 7.6900e-003

0.0000 140.9649







Total 66.64 69.37 60.34 321,380 321,380





4.4 Fleet Mix






5.0 Energy Detail


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Electricity Mitigated

0.0000 0.0000 0.0000 0.0000 0.0000 19.1288 19.1288 7.9000e-004

1.6000e-004

19.1972

Electricity Unmitigated

0.0000 0.0000 0.0000 0.0000 0.0000 19.1288 19.1288 7.9000e-004

1.6000e-004

19.1972


1.1800e-003

0.0101 4.2800e-003

6.0000e-005

8.1000e-004

8.1000e-004

8.1000e-004

8.1000e-004

0.0000 11.6540 11.6540 2.2000e-004

2.1000e-004

11.7232


1.1800e-003

0.0101 4.2800e-003

6.0000e-005

8.1000e-004

8.1000e-004

8.1000e-004

8.1000e-004

0.0000 11.6540 11.6540 2.2000e-004

2.1000e-004

11.7232






NaturalGas Use


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total


Land Use kBTU/yr tons/yr MT/yr


0 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000


218387 1.1800e-003

0.0101 4.2800e-003

6.0000e-005

8.1000e-004

8.1000e-004

8.1000e-004

8.1000e-004

0.0000 11.6540 11.6540 2.2000e-004

2.1000e-004

11.7232

Total 1.1800e-003

0.0101 4.2800e-003

6.0000e-005

8.1000e-004

8.1000e-004

8.1000e-004

8.1000e-004

0.0000 11.6540 11.6540 2.2000e-004

2.1000e-004

11.7232

Unmitigated

NaturalGas Use


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total


Land Use kBTU/yr tons/yr MT/yr


0 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000


218387 1.1800e-003

0.0101 4.2800e-003

6.0000e-005

8.1000e-004

8.1000e-004

8.1000e-004

8.1000e-004

0.0000 11.6540 11.6540 2.2000e-004

2.1000e-004

11.7232

Total 1.1800e-003

0.0101 4.2800e-003

6.0000e-005

8.1000e-004

8.1000e-004

8.1000e-004

8.1000e-004

0.0000 11.6540 11.6540 2.2000e-004

2.1000e-004

11.7232

Mitigated




6.0 Area Detail

5.3 Energy by Land Use - Electricity

Electricity Use

Total CO2 CH4 N2O CO2e

Land Use kWh/yr MT/yr


0 0.0000 0.0000 0.0000 0.0000


60036.1 19.1288 7.9000e-004

1.6000e-004

19.1972

Total 19.1288 7.9000e-004

1.6000e-004

19.1972

Unmitigated

Electricity Use


Land Use kWh/yr MT/yr


0 0.0000 0.0000 0.0000 0.0000


60036.1 19.1288 7.9000e-004

1.6000e-004

19.1972

Total 19.1288 7.9000e-004

1.6000e-004

19.1972

Mitigated








Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Mitigated 0.1948 2.0700e-003

0.0731 1.0000e-005

5.0000e-004

5.0000e-004

5.0000e-004

5.0000e-004

0.0000 1.5468 1.5468 1.4000e-004

3.0000e-005

1.5582

Unmitigated 0.1948 2.0700e-003

0.0731 1.0000e-005

5.0000e-004

5.0000e-004

5.0000e-004

5.0000e-004

0.0000 1.5468 1.5468 1.4000e-004

3.0000e-005

1.5582





Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total


SubCategory tons/yr MT/yr


0.0153 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Consumer Products

0.1771 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Hearth 1.4000e-004

1.2300e-003

5.3000e-004

1.0000e-005

1.0000e-004

1.0000e-004

1.0000e-004

1.0000e-004

0.0000 1.4288 1.4288 3.0000e-005

3.0000e-005

1.4373

Landscaping 2.2200e-003

8.4000e-004

0.0726 0.0000 4.0000e-004

4.0000e-004

4.0000e-004

4.0000e-004

0.0000 0.1180 0.1180 1.2000e-004

0.0000 0.1208

Total 0.1948 2.0700e-003

0.0731 1.0000e-005

5.0000e-004

5.0000e-004

5.0000e-004

5.0000e-004

0.0000 1.5468 1.5468 1.5000e-004

3.0000e-005

1.5582

Unmitigated




7.0 Water Detail



Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total


SubCategory tons/yr MT/yr


0.0153 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Consumer Products

0.1771 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Hearth 1.4000e-004

1.2300e-003

5.3000e-004

1.0000e-005

1.0000e-004

1.0000e-004

1.0000e-004

1.0000e-004

0.0000 1.4288 1.4288 3.0000e-005

3.0000e-005

1.4373

Landscaping 2.2200e-003

8.4000e-004

0.0726 0.0000 4.0000e-004

4.0000e-004

4.0000e-004

4.0000e-004

0.0000 0.1180 0.1180 1.2000e-004

0.0000 0.1208

Total 0.1948 2.0700e-003

0.0731 1.0000e-005

5.0000e-004

5.0000e-004

5.0000e-004

5.0000e-004

0.0000 1.5468 1.5468 1.5000e-004

3.0000e-005

1.5582

Mitigated




Category MT/yr

Mitigated 3.0547 0.0150 3.8000e-004

3.5412

Unmitigated 3.0547 0.0150 3.8000e-004

3.5412

7.2 Water by Land Use

Indoor/Outdoor Use


Land Use Mgal MT/yr


0 / 0 0.0000 0.0000 0.0000 0.0000


0.456078 / 0.287528

3.0547 0.0150 3.8000e-004

3.5412

Total 3.0547 0.0150 3.8000e-004

3.5412

Unmitigated




7.2 Water by Land Use

Indoor/Outdoor Use


Land Use Mgal MT/yr


0 / 0 0.0000 0.0000 0.0000 0.0000


0.456078 / 0.287528

3.0547 0.0150 3.8000e-004

3.5412

Total 3.0547 0.0150 3.8000e-004

3.5412

Mitigated

8.0 Waste Detail


MT/yr

Mitigated 1.6645 0.0984 0.0000 4.1238

Unmitigated 1.6645 0.0984 0.0000 4.1238

Category/Year



8.2 Waste by Land Use

Waste Disposed


Land Use tons MT/yr


0 0.0000 0.0000 0.0000 0.0000


8.2 1.6645 0.0984 0.0000 4.1238

Total 1.6645 0.0984 0.0000 4.1238

Unmitigated

Waste Disposed


Land Use tons MT/yr


0 0.0000 0.0000 0.0000 0.0000


8.2 1.6645 0.0984 0.0000 4.1238

Total 1.6645 0.0984 0.0000 4.1238

Mitigated





11.0 Vegetation




Boilers




