administrative update to specific geographic information ... · pdf filebasin plan chapter 2...

Basin Plan Chapter 2 Revisions to Geographic Information March 22, 2016

ADMINISTRATIVE UPDATE TO SPECIFIC GEOGRAPHIC

INFORMATION IN CHAPTER 2 “BENEFICIAL USES” OF

THE WATER QUALITY CONTROL PLAN FOR THE LOS

ANGELES REGION

DRAFT STAFF REPORT

CALIFORNIA REGIONAL WATER QUALITY CONTROL BOARD, LOS ANGELES REGION

MARCH 22, 2016

1

INTRODUCTION

In November 2011, the Los Angeles Water Board adopted non-regulatory administrative updates to Chapter 2 of the Water Quality Control Plan for the Los Angeles Region (Basin Plan). This update included:

i. Revisions to all surface water, groundwater, and coastal features maps based on higher resolution geographical information;

ii. Revisions to the beneficial use tables to reconcile them with the higher resolution maps,

and to reflect reach name changes that have occurred as a result of total maximum daily loads or other Basin Plan amendments; and

iii. Incorporation of previously adopted Basin Plan amendments to the region’s municipal

and recreational beneficial uses as contained in Los Angeles Water Board Resolution No. R98-018, Los Angeles Water Board Resolution No. R03-010, and State Water Resources Control Board Resolution No. 2005-0015.

Details of that administrative update to Chapter 2 can be found in the Staff Report on the Los Angeles

Water Board’s website at:

http://www.waterboards.ca.gov/losangeles/water_issues/programs/basin_plan/Beneficial_Uses/ch2/Re

vised%20Draft%20Staff%20Report.pdf

The 2011 revisions to the beneficial use tables included changes to the existing hydrologic unit codes (HUCs) for the Los Angeles Region’s waterbodies. Prior to the update, the Basin Plan classified water body segments by 8-digit HUCs that identified waterbodies at four levels – region, sub-region, hydrologic basin, and hydrologic sub-basin. This was based on the CalWater 2.2.1 dataset. This hydrologic classification system was replaced by a more precise one that added two additional layers of hierarchy – watershed and sub-watershed, resulting in 12-digit HUCs. This new system was based on the National Hydrography Dataset (NHD). The NHD dataset has been updated since the Board’s HUC revisions were made in 2011, thereby warranting additional revisions to the HUCs for certain waterbody segments/reaches in the beneficial use and tributary tables of Chapter 2 of the Basin Plan. Other proposed revisions include clarifications/corrections to waterbody reach descriptions in the beneficial use tables, and corrections and additions to information in the tributary tables for Chapter 2 of the Basin Plan. Details of these proposed revisions are presented in the sections below.

A. PROPOSED REVISIONS TO THE BENEFICIAL USE TABLES The proposed revisions to the beneficial use tables in Chapter 2 of the Basin Plan include updates to the HUCs at the hydrologic sub-basin or sub-watershed level; i.e., HUC12. The HUC12 updates reflect the changes of HUC12 and its subsequent designations to the water body boundaries in NHDPlus Version 2 (2012), which includes better source data, improved production methods, and additional components to enhance utility. New watershed boundary dataset (WBD) numbers were assigned to each of the affected waterbodies. Most of the changes of HUC12 occurred in the coastal areas, particularly in the Santa Monica Bay Hydrologic Unit and the San Gabriel Hydrologic Unit. The HUC12 updates are in accordance with the Federal Standards and Procedures for the National Watershed Boundary Dataset, fourth edition (2013). Additionally, proposed revisions to the beneficial use tables in Chapter 2 include updates to some of the waterbodies within the region. These proposed revisions are made to clarify and/or correct previous waterbody reach descriptions.

http://www.waterboards.ca.gov/losangeles/water_issues/programs/basin_plan/Beneficial_Uses/ch2/Revised%20Draft%20Staff%20Report.pdf

http://www.waterboards.ca.gov/losangeles/water_issues/programs/basin_plan/Beneficial_Uses/ch2/Revised%20Draft%20Staff%20Report.pdf

2

I. REVISIONS TO TABLE 2-1. BENEFICIAL USES OF INLAND SURFACE WATERS (PAGE 2-6 TO 2-15)

HUC12 Updates:

Waterbody Current HUC New HUC

McGrath Lake 180701010202 180701030202

Canyon Streams of Palos Verdes 180701040701 180701060701

Bixby Slough 180701040701 180701060701

Machado Lake 180701040701 180701060701

Madrona Marsh 180701040701 180701060701

Los Cerritos Wetlands 180701040702 180701060702

Los Cerritos Channel Estuary 180701040702 180701060702

Sims Pond 180701040702 180701060702

Los Cerritos Channel 180701040702 180701060702

Colorado Lagoon 180701040702 180701060702

Coyote Creek (San Gabriel River Estuary to La Canada Verde Creek)

180701060506 180701060606

Bear Creek 180701060205 180701060203

Anacapa Island 180601040203 190601040202

Revisions to Waterbody Reach Descriptions:

Switch “Calleguas Creek Reach 9A” and “Calleguas Creek Reach 9B” to be consistent with the

reach definitions in the 2010 Clean Water Act Section 303(d) list.

For Calleguas Creek Reach 9B, change “Camarillo Rd” to “Camarillo Drain” as Camarillo Drain

was mistakenly identified as Camarillo Rd previously.

Split “West Fork San Gabriel River (above Bear Creek)” into two sections to reflect the changes

in HUC12:

o “West Fork San Gabriel River (Bear Creek to Cogswell Reservoir)”, “180701060205”.

o “West Fork San Gabriel River (Above Cogswell Reservoir)”, “180701060202”.

The beneficial use designations remain the same for both sections.

II. REVISIONS TO TABLE 2-1A: BENEFICIAL USES OF INLAND SURFACE WATERS (PAGE 2-16 TO 2-25)

Change the table heading to “Table 2-1a. Recreational Beneficial Uses of Inland Surface Waters” to

clarify that this table is specifically for recreational beneficial uses.

HUC12 Updates:


McGrath Lake 180701010202 180701030202

Canyon Streams of Palos Verdes 180701040701 180701060701

Bixby Slough 180701040701 180701060701

Machado Lake 180701040701 180701060701

Madrona Marsh 180701040701 180701060701

3




Sims Pond 180701040702 180701060702

Los Cerritos Channel 180701040702 180701060702

Colorado Lagoon 180701040702 180701060702

Coyote Creek (San Gabriel River Estuary to La Canada Verde Creek)

180701060506 180701060606

Bear Creek 180701060205 180701060203

Anacapa Island 180601040203 190601040202


Switch “Calleguas Creek Reach 9A” and “Calleguas Creek Reach 9B” to be consistent with the

reach definitions in the 2010 Clean Water Act Section 303(d) list.

For Calleguas Creek Reach 9B, change “Camarillo Rd” to “Camarillo Drain” as Camarillo Drain

was mistakenly identified as Camarillo Rd previously.

Split “West Fork San Gabriel River (above Bear Creek)” into two sections to reflect the changes

in HUC12:

o “West Fork San Gabriel River (Bear Creek to Cogswell Reservoir)”, “180701060205”.

o “West Fork San Gabriel River (Above Cogswell Reservoir)”, “180701060202”.

The beneficial use designations remain the same for both sections.

III. REVISIONS TO TABLE 2-1A. BENEFICIAL USES OF INLAND SURFACE WATERS (PAGE 2-26 TO 2-28)

Change the table heading to “Table 2-3a. Recreational Beneficial Uses of Coastal Features” to align

with the other beneficial uses of coastal features in Table 2-3.

HUC12 Updates


Rincon Beach 180701010201 180701010202

Ventura Keys (Marina) 180701010202 180701010203

Ventura Marina 180701010904 180701020904

Santa Clara River Estuary 180701010904 180701020904

Mandalay Beach 180701010201 180701030201

McGrath Lake 180701010201 180701030201

Edison Canal Estuary 180701010201 180701030201

Channel Islands Harbor 180701010201 180701030201

Mandalay Bay (Marina) 180701010201 180701030201

Port Hueneme (Harbor) 180701010201 180701030201

Ormond Beach 180701010201 180701030201

Ormond Beach Wetland 180701010202 180701030202

Mugu Lagoon 180701010202 180701030201

4


Calleguas Creek Estuary 180701010202 180701030107

Nicholas Canyon Beach 180701040402 180701040202

Trancas Beach 180701040403 180701040203

Zuma County (Westward) Beach 180701040403 180701040203

Dume State Beach 180701040404 180701040204

Dume Lagoon 180701040403 180701040203

Escondido Beach 180701040404 180701040204

Dan Blocker Memorial (Corral) Beach 180701040404 180701040204

Puerco Beach 180701040404 180701040204

Amarillo Beach 180701040404 180701040204

Malibu Beach 180701040404 180701040204

Malibu Lagoon 180701040404 180701040404

Carbon Beach 180701040502 180701040502

La Costa Beach 180701040502 180701040403

Las Flores Beach 180701040502 180701040403

Las Tunas Beach 180701040502 180701040403

Topanga Beach 180701040502 180701040403

Topanga Lagoon 180701040501 180701040401

Will Roger State Beach 180701040502 180701040403

Santa Monica Beach 180701040502 180701040403

Venice Beach 180701040502 180701040403

Marina Del Rey 180701040502 180701040403

Ballona Creek Estuary 180701040200 180701040300

Ballona Lagoon/Venice Canals 180701040502 180701040403

Ballona Wetlands 180701040200 180701040300

Del Rey Lagoon 180701040601 180701040500

Dockweiler Beach 180701040601 180701040500

Manhattan Beach 180701040601 180701040500

Hermosa Beach 180701040601 180701040500

King Harbor 180701040601 180701040500

Redondo Beach 180701040601 180701040500

Torrance Beach 180701040601 180701040500

Point Vicente Beach 180701040601 180701040500

Royal Palms Beach 180701040601 180701040500

White Point County Beach 180701040601 180701040500

Cabrillo Beach 180701040302 180701040403

Los Angeles – Long Beach Harbor 180701040602 180701060703

Outer Harbor 180701040602 180701060703

5


Marinas 180701040602 180701060703

Public Beach Areas 180701040602 180701060703

All Other Inner Areas 180701040602 180701060703

Dominguez Channel Estuary 180701040302 180701060102

Los Angeles River Estuary 180701040404 180701050402

Alamitos Bay 180701040600 180701060702



San Gabriel Estuary 180701040506 180701060606

Long Beach Marina 180701040600 180701060702


All Other Areas 180701040600 180701060702

Marine Stadium 180701040600 180701060702

Long Beach 180701040600 180701060703

Anacapa Island 180600140203 180600140202


Change “Port Vicente Beach” to “Point Vicente Beach” to correct a typographical error.

6

IV. REVISIONS TO TABLE 2-1A. BENEFICIAL USES OF ISLAND SURFACE WATERS (PAGE 2-29)

Change the table heading to “Table 2-4a. Recreational Beneficial Uses of Coastal Wetlands” to align

with the other beneficial uses of coastal wetlands in Table 2-4.

HUC12 Updates


McGrath Lake 180701010202 180701030202

Mugu Lagoon 180701010202 180701030201

Dume Lagoon 180701040403 180701040203

Topanga Lagoon 180701040501 180701040401



Del Rey Lagoon 180701040601 180701040500


V. REVISIONS TO TABLE 2-3. BENEFICIAL USES OF COASTAL FEATURES (PAGE 2-31 TO 2-33)

HUC12 Updates


Rincon Beach 180701010201 180701010202

Ventura Keys (Marina) 180701010202 180701010203

Ventura Marina 180701010904 180701020904

Santa Clara River Estuary 180701010904 180701020904

Mandalay Beach 180701010201 180701030201

McGrath Lake 180701010201 180701030201

Edison Canal Estuary 180701010201 180701030201

Channel Islands Harbor 180701010201 180701030201

Mandalay Bay (Marina) 180701010201 180701030201

Port Hueneme (Harbor) 180701010201 180701030201

Ormond Beach 180701010201 180701030201

Ormond Beach Wetland 180701010202 180701030202

Mugu Lagoon 180701010202 180701030201

Calleguas Creek Estuary 180701010202 180701030107

Nicholas Canyon Beach 180701040402 180701040202

Trancas Beach 180701040403 180701040203

Zuma County (Westward) Beach 180701040403 180701040203

Dume State Beach 180701040404 180701040204

Dume Lagoon 180701040403 180701040203

Escondido Beach 180701040404 180701040204

Dan Blocker Memorial (Corral) Beach 180701040404 180701040204

7


Puerco Beach 180701040404 180701040204

Amarillo Beach 180701040404 180701040204

Malibu Beach 180701040404 180701040204

Malibu Lagoon 180701040404 180701040404

Carbon Beach 180701040502 180701040502

La Costa Beach 180701040502 180701040403

Las Flores Beach 180701040502 180701040403

Las Tunas Beach 180701040502 180701040403

Topanga Beach 180701040502 180701040403

Topanga Lagoon 180701040501 180701040401

Will Roger State Beach 180701040502 180701040403

Santa Monica Beach 180701040502 180701040403

Venice Beach 180701040502 180701040403

Marina Del Rey 180701040502 180701040403

Ballona Creek Estuary 180701040200 180701040300



Del Rey Lagoon 180701040601 180701040500

Dockweiler Beach 180701040601 180701040500

Manhattan Beach 180701040601 180701040500

Hermosa Beach 180701040601 180701040500

King Harbor 180701040601 180701040500

Redondo Beach 180701040601 180701040500

Torrance Beach 180701040601 180701040500

Point Vicente Beach 180701040601 180701040500

Royal Palms Beach 180701040601 180701040500

White Point County Beach 180701040601 180701040500

Cabrillo Beach 180701040302 180701040403

Los Angeles – Long Beach Harbor 180701040602 180701060703

Outer Harbor 180701040602 180701060703

Marinas 180701040602 180701060703


All Other Inner Areas 180701040602 180701060703

Dominguez Channel Estuary 180701040302 180701060102

Los Angeles River Estuary 180701040404 180701050402

Alamitos Bay 180701040600 180701060702



8


San Gabriel Estuary 180701040506 180701060606

Long Beach Marina 180701040600 180701060702


All Other Areas 180701040600 180701060702

Marine Stadium 180701040600 180701060702

Long Beach 180701040600 180701060703

Anacapa Island 180600140203 180600140202


Change “Port Vicente Beach” to “Point Vicente Beach” to correct a typographical error.

VI. TABLE 2-4. BENEFICIAL USES OF COASTAL WETLANDS (PAGE 2-34)

HUC12 Updates

Waterbody Current WBD Number New WBD Number

McGrath Lake 180701010202 180701030202

Mugu Lagoon 180701010202 180701030201

Dume Lagoon 180701040403 180701040203

Topanga Lagoon 180701040501 180701040401



Del Rey Lagoon 180701040601 180701040500


B. PROPOSED REVISIONS TO THE TRIBUTARY TABLES

Proposed revisions to the tributary tables for Chapter 2 of the Basin Plan include updates to the hydrologic unit codes (HUCs). As previously stated, the HUC12 updates reflect the changes of HUC12 and its subsequent designations to the water body boundaries in NHDPlus Version 2 (2012), which includes better source data, improved production methods, and additional components to enhance utility. New watershed boundary dataset (WBD) numbers were assigned to each of the affected waterbodies. The HUC12 updates are in accordance with the Federal Standards and Procedures for the National Watershed Boundary Dataset, fourth edition (2013). Additionally, proposed revisions to the tributary tables include corrections and additions to assigned

tributaries of various waterbodies within the Los Angeles Region. These proposed revisions are made

to correct inadvertent errors and omissions.

9

HUC12 Updates:

Waterbody Current Hydrologic Unit Code

New Hydrologic Unit Code

Kennedy Canyon 180701010104 180701010105

Lion Canyon (tributary of Sespe Creek) 180701020302 180701020702

Lion Canyon (tributary of Burt Peak Canyon)

180701020702 180701020302

Piru Creek (Santa Clara River Reach 11) 180701020603 180701020604






Mugu Lagoon (Calleguas Creek Reach 1) 180701030202 180701030201

Dume Lagoon 180701040403 180701040203

Devils Gate Reservoir 180701050401 180701050209

Eagle Rock Reservoir 180701050402 180701050210

Echo Lake 180701040200 180701040300

Hansen Flood Control Basin & Lakes 180701050208 180701050105

Lincoln Park Lake 180701050403 180701050401

Revisions to Assigned Tributaries:

Waterbody Current Tributary of New Tributary of

Arundell Barranca Ventura Marina Ventura Keys

Hall Canyon Creek Pacific Ocean Prince Barranca

Ojai Wetland Not Identified Ventura River Reach 4

Apple Canyon Fish Creek Pyramid Lake

Canada de Los Alamos Fish Creek Gorman Creek

Elderberry Canyon Castaic Creek Elderberry Forebay

Gorman Creek Piru Creek Pyramid Lake

Grasshopper Canyon Castaic Creek Castaic Lagoon

Harmon Barranca Santa Clara River Reach 1 Santa Clara River Reach 2

Liebre Gulch Piru Creek Pyramid Lake

Long Canyon Santa Clara River Reach 8 Brown Barranca

Martingdale Canyon Bouquet Canyon Bouquet Reservoir

Necktie Canyon Castaic Creek Castaic Lake

Placerita Creek South Fork Santa Clara River

New Hall Creek

Posey Canyon Liebre Gulch Pyramid Lake

Quail Canyon Fish Creek Gorman Creek

10


Reasoner Canyon Piru Creek Lake Piru

Santa Felica Canyon Piru Creek Lake Piru

Santa Paula Creek (Santa Clara River Reach 9)

Santa Clara River Reach 3 Santa Paula Creek

Sespe Creek (Santa Clara River Reach 10)

Santa Clara River Reach 3 Sespe Creek

Spunky Canyon Bouquet Canyon Bouquet Reservoir

Trust Me Canyon Fish Creek Gorman Creek

West Fork Liebre Gulch Piru Creek Pyramid Lake

Arroyo Colorado Beardsley Wash Beardsley Wash (Calleguas Creek Reach 5)

Arroyo Conejo (Calleguas Creek Reach 10)

Conejo Creek Conejo Creek (Calleguas Creek Reach 9B)

Arroyo Conejo (Calleguas Creek Reach 13)

Arroyo Conejo Arroyo Conejo (Calleguas Creek Reach 10)

Arroyo Santa Rosa (Calleguas Creek Reach 11)

Conejo Creek Conejo Creek (Calleguas Creek Reach 9B)

Arroyo Simi (Calleguas Creek Reach 7), 190801030103

Arroyo Las Posas Arroyo Las Posas (Calleguas Creek Reach 6)


Arroyo Las Posas Arroyo Simi (Calleguas Creek Reach 7)


Arroyo Las Posas Arroyo Simi (Calleguas Creek Reach 7)

Beardsley Wash (Calleguas Creek Reach 5)

Revolon Slough Revolon Slough (Calleguas Creek Reach 4)

Black Canyon Arroyo Simi Arroyo Simi (Calleguas Creek Reach 7)

Brea Canyon Arroyo Simi Arroyo Simi (Calleguas Creek Reach 7)

Bus Canyon Arroyo Simi Arroyo Simi (Calleguas Creek Reach 7)

Chivo Canyon Arroyo Simi Arroyo Simi (Calleguas Creek Reach 7)

Conejo Creek (Calleguas Creek Reach 9B)

Calleguas Creek Reach 3 Calleguas Creek Reach 9A

Coyote Canyon Arroyo Simi Arroyo Los Posas (Calleguas Creek Reach 6)

Dry Canyon Arroyo Simi Arroyo Simi (Calleguas Creek Reach 7)

Gilibrand Canyon Tapo Canyon Tapo Canyon

(Calleguas Creek Reach 8)

Happy Camp Canyon Arroyo Simi Arroyo Simi (Calleguas Creek Reach 7)

Honda Barranca Beardsley Wash Beardsley Wash (Calleguas Creek Reach 5)

Long Canyon Arroyo Las Posas Arroyo Las Posas (Calleguas Creek Reach 6)

Meier Canyon Arroyo Simi Arroyo Simi (Calleguas Creek Reach 7)

Milligan Barranca Beardsley Wash Beardsley Wash (Calleguas Creek

11


Reach 5)

Mugu Lagoon (Calleguas Creek Reach 1) Pacific Ocean

North Folk Arroyo Conejo (Calleguas Creek Reach 12)

Arroyo Conejo Arroyo Conejo (Calleguas Creek Reach 10)

Runkle Canyon Arroyo Simi Arroyo Simi (Calleguas Creek Reach 7)

Sycamore Canyon Arroyo Simi Arroyo Simi (Calleguas Creek Reach 7)

Tapo Canyon (Calleguas Creek Reach 8) Arroyo Simi Arroyo Simi (Calleguas Creek Reach 7)

Tripas Canyon Tapo Canyon Tapo Canyon (Calleguas Creek Reach 8)

Dume Creek (Zuma Canyon) Pacific Ocean Dume Lagoon

Dume Lagoon Pacific Ocean

Newton Canyon Zuma Canyon Dume Creek (Zuma Canyon)

Lindero Creek Reach 2 Lindero Creek Reach 1 Lake Lindero

Palo Comado Canyon Medea Creek Medea Creek Reach 2

Schoolhouse Canyon Not Identified Westlake

Sepulveda Channel Ballona Creek Estuary Ballona Creek Reach 2

Arcadia Wash Rio Hondo Reach 2 Rio Hondo Reach 3

Bluegum Canyon Hanes Canyon Creek Haines Canyon Creek

Compton Creek Los Angeles River Reach 1 Los Angeles River Reach 2

Flint Canyon Channel Arroyo Seco Reach 2 Arroyo Seco Reach 3

Hog Canyon Van Norman Complex Sombrero Canyon

Lower Van Normal Reservoir Van Norman Complex Bull Creek

Mission Creek Rio Hondo Reach 2 Rio Hondo Reach 3

Santa Anita Canyon Creek Santa Anita Wash (upper) Big Santa Anita Reservoir

Santa Anita Wash (Lower) Rio Hondo Reach 2 Peck Road Park Lake

Sawpit Wash Rio Hondo Reach 2 Peck Road Park Lake

Sherer Canyon Verdugo Wash Reach 1 Los Angeles River Reach 3

Stetson Canyon Creek Van Norman Complex Sombrero Canyon

Sunset Canyon Burbank Western Channel Los Angeles River Reach 3

Sycamore Canyon Rio Hondo Reach 2 Rio Hondo Reach 3

West Fork Sombrero Canyon Van Norman Complex Sombrero Canyon

Bliss Canyon San Gabriel River Reach 5 Bradbury Canyon

Brea Canyon San Jose Creek San Jose Creek Reach 1

Hacienda Channel San Jose Creek San Jose Creek Reach 1

Legg Lake Whittier Narrows Flood Control Basin

Mission Creek

Lemon Creek San Jose Creek San Jose Creek Reach 1

Monroe Canyon Big Dalton Canyon Creek Big Dalton Dam & Reservoir

Powder Canyon San Jose Creek San Jose Creek Reach 1

12


Puddingstone Wash Walnut Creek Wash Live Oak Wash

South San Jose Creek San Jose Creek San Jose Creek Reach 1

Spinks Canyon Creek Scott Canyon San Gabriel River Reach 5

Thompson Wash San Jose Creek San Jose Creek Reach 2

Additions to Tributary Tables:

Waterbody Hydrologic Unit Code Tributary of

Castaic Lake 180701020304 Castaic Creek

Pyramid Lake 180701020507 Piru Creek

Pyramid Lake 180701020508 Piru Creek

Santa Paula Creek 180701020901 Santa Clara River Reach 3

Malibu Lagoon 180701040204 Pacific Ocean

Malibu Lagoon 180701040403 Pacific Ocean

Cogswell Reservoir 180701060201 West Fork San Gabriel River

San Gabriel River Reach 3 180701060606 San Gabriel River Reach 2

San Jose Creek Reach 1 180701060501 San Gabriel River Reach 3

Deletions from Tributary Tables:

Waterbody Hydrologic Unit Code Tributary of

Arroyo Las Posas 180701030105 Calleguas Creek Reach 3

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