con5316 march 2015 - winchester hs...

$: CON5316 March 2015 - Winchester HS Projectwinchesterhsproject.com/wp-content/uploads/2014/10/...CONSIGLI Winchester High School Page 2 of 8 G:\Client Files\Consigli Construction\2014-5316$
SubmittalJob:

Winchester High School

Spec Section No:

80 Skillings RoadWinchester, MA 01890

Submittal No:01 57 33

012

Sent Date:Revision No: 0

3/27/2015

1326

Due Date: 4/17/2015

Spec Section Title: Temporary Indoor Air Quality Control

Submittal Title: IAQ Monthly Report - March 2015

Contractor's Stamp

Architect's Stamp

Engineer / Government / Other Approval

Consigli Construction Co., Inc.Contractor:

Architect:Symmes Maini & MckeeFanuele, David

Consigli Construction Co., Inc.Construction Managers and General Contractors

72 Sumner Street, Milford MA 01757 ● phone: 508-473-2580 ● fax: 508-473-3588 ● web: www.consigli.comHartford CT ● Portland ME ● Milford MA

G:\Client Files\Consigli Construction\2014-5316 Winchester High School\Monthly Test Reports\CON5316 March 2015.docx

INDOOR AIR QUALITY ASSESSMENT DURINGCONSTRUCTIONMarch, 2015

WINCHESTER HIGH SCHOOL80 Skillings Road

Winchester, MA 01890

Prepared For:Justin Bolla

Assistant SuperintendentConsigli Construction

72 Sumner StMilford, MA 01757

Prepared By:Zachary Keefe

Cashins & Associates599 North Avenue, Suite 8Wakefield, MA 01880

Job #: 5316

March 24, 2015

CONSIGLIWinchester High School

Page 2 of 8


Contents1. EXECUTIVE SUMMARY .................................................................................................. 3

2. INTRODUCTION................................................................................................................. 4

3. INDOOR AIR QUALITY PARAMETERS..................................................................... 4

4. METHODOLOGIES ............................................................................................................ 4

5. FINDINGS............................................................................................................................. 55.1 Findings: Basic IAQ Parameters ...................................................................................... 5Table 1: Real-time Air Quality Readings.............................................................................. 5

6. DISCUSSION....................................................................................................................... 7


Page 3 of 8


1. EXECUTIVE SUMMARY

BACKGROUND

Consigli retained Cashins & Associates, Inc., to perform an indoor air quality (IAQ) assessmentat areas adjacent to Phase I of the project at the Winchester High School in Winchester,Massachusetts. This testing was conducted in order to determine whether various IAQparameters were in compliance with the project's Indoor Air Quality Management Plan.

SCOPE OF WORK

On March 23, 2015, a Senior Indoor Air Quality Consultant from Cashins & Associatesperformed air sampling as required by the Indoor Air Quality Management Plan developed byCashins & Associates.

Measurements were taken for the following:

x Carbon Dioxide x Carbon Monoxidex Temperature x Volatile Organic Compounds (VOCs)x Relative Humidity x Dust

It should be noted that readings for carbon dioxide are taken during these assessments not tomeasure ventilation or HVAC effectiveness, but to ensure that exhaust from combustion enginesare not entering the space. Different techniques would be employed in order to assess theeffectiveness of the school's ventilation system. Thus, carbon dioxide readings listed here are notto be read as an accurate measurement of the amount of fresh air bring brought into classroomspaces.

FINDINGS

Real-time readings for CO, VOCs, and dust were all below upper limits set forth in the IAQManagement Plan. Although CO levels were much lower than the upper limit of 9 ppm set forthin the IAQ Management Plan, some detectable levels were found. This is most likely due to thepresence of heavy equipment near the building as well as the fact that numerous outdoor airintakes are located on the side of the building immediately adjacent to the work area. Consiglishould continue the practice of keeping heavy machinery as far away from these intakes aspossible so as to continue to keep CO at acceptable levels.

It was also noted while on site that certain barriers separating the work area from the school areahad not been sealed completely. It is recommended that the construction side of these barriers besealed with the same rubber membrane used to seal other construction barriers. This should helpprevent dust and other contaminants from passing through these leaky window and wall systems.


Page 4 of 8


2. INTRODUCTION

Cashins & Associates, Inc. was retained by Consigli to provide professional industrial hygieneconsulting services. Our scope of work consisted of measuring various basic indoor air qualityparameters during construction activities at Winchester High School in Winchester,Massachusetts. This assessment took place on March 23, 2015, and focused on areas adjacent toPhase I of the project.

3. INDOOR AIR QUALITY PARAMETERS

The following is a breakdown of upper limits related to indoor air quality as stipulated in section01 81 19 of the Project Specification:

Analyte Upper LimitAirborne dust 150 µg/m3 (Occupied), 500 µg/m3 (Work Area)Volatile Organic Compounds (VOCs) 5 ppm (5,000 ppb)

Carbon Monoxide (CO) 9 ppm

4. METHODOLOGIES

A TSI Q-Track indoor air quality meter was used to measure carbon dioxide and carbonmonoxide at representative locations of the school. The range of measurements obtained isreported in Table 1.

A RAE Instruments part per billion photo-ionization detector (PID) was utilized to screen theschool building for the presence of TVOC. The PID is a screening tool that provides informationas to total volatile organic compound loading in the space. The instrument does not provideinformation pertaining to which specific compounds are present in the air.

Dust concentrations were measured using a MIE pDR-1000AN passive air sampler. This real-time aerosol monitor measures both respirable and thoracic fractions, with optimal responses toparticles in the 0.1-10 micron size range. The monitor was zeroed on June 19, 2014 prior to themonitoring event by using a hand-inflatable “zero air” pouch in conjunction with an inlet filtercartridge.


Page 5 of 8


5. FINDINGS

5.1 Findings: Basic IAQ Parameters

We have listed in Table 1 the results of the real-time air sampling. It should be noted that thesereadings are taken in areas adjacent to classrooms, not inside the classrooms themselves.

Table 1: Real-time Air Quality ReadingsLocation CO2

(ppm)

CO

(ppm)

TVOC

(ppb)

Dust

(µg/m3)

1st floorMain Office 647 <0.1 <1 22@ exit 34 626 <0.1 <1 67Blue stair @ barrier 721 <0.1 44 161@ Room A101 623 <0.1 <1 24B hall @ bubbler 1072 0.1 25 114B hall @ women's room 830 0.1 0 72@ Room B101 1023 0.7 46 11@ Photography 786 0.7 9 73@ Cafeteria 1000 0.7 52 36

East WingHall @ Music Suite 452 <0.1 <1 16@ Shop class 413 1.1 <1 7Band Room 392 0.9 <1 2West Exit 378 1.0 <1 9Men's Locker 362 0.8 <1 4@ Boiler Room 369 0.5 <1 3

2nd floorWest side @ work 836 <0.1 20 24@ Room C210 896 <0.1 26 3@ Room C207 828 <0.1 27 4@ Room C202 738 0.8 8 2@ Room C205 812 0.8 33 3@ Room B209 1241 1.6 57 21B Hall @ bubbler 1026 1.6 38 1@ Room B207 1011 1.6 48 11@ Room B203 1007 1.6 45 13@ Room B201 831 1.7 27 44@ Room A211 780 2.2 25 1Social Studies Dept. 860 2.4 44 6@ Room A210 932 2.5 28 1@ Room A201 1124 2.8 64 4@ barrier 1189 2.6 61 15Blue stair landing 822 2.6 177 51

3rd FloorBlue stair landing 775 1.7 176 106Science Teacher's Room 699 <0.1 19 3@ Room A302 642 <0.1 2 1


Page 6 of 8


Table 1: Real-time Air Quality ReadingsLocation CO2

(ppm)

CO

(ppm)

TVOC

(ppb)

Dust

(µg/m3)

Science Lecture Room 664 <0.1 26 6@ Room A305 542 <0.1 2 2@ Room B301 721 0.8 30 3@ Room B303 728 0.9 7 1B Wing Hall 733 1.6 41 2@ Room B307 690 1.7 55 2@ Room C302 750 1.9 12 1@ Room C306 731 2.4 9 3@ Room C309 673 2.4 3 1West Hall 643 2.3 11 3@ Room C308 642 2.3 1 2


Page 7 of 8


6. DISCUSSION

Real-time readings for CO, VOCs, and dust were all below upper limits set forth in the IAQManagement Plan. Although CO levels were much lower than the upper limit of 9 ppm set forthin the IAQ Management Plan, some detectable levels were found. This is most likely due to thepresence of heavy equipment near the building as well as the fact that numerous outdoor airintakes are located on the side of the building immediately adjacent to the work area. Consiglishould continue the practice of keeping heavy machinery as far away from these intakes aspossible so as to continue to keep CO at acceptable levels.

It was also noted while on site that certain barriers separating the work area from the school areahad not been sealed completely. It is recommended that the construction side of these barriers besealed with the same rubber membrane used to seal other construction barriers. This should helpprevent dust and other contaminants from passing through these leaky window and wall systems.

Indoor air quality related to construction activities will be monitored on a regular basis byCashins & Associates throughout this project in order to ensure that concentrations of variousairborne contaminants remain at acceptable levels.

Attached, please find photographs taken during this assessment.

Please call if you have any questions or if we can be of further assistance.

Sincerely,Cashins & Associates, Inc.

Zachary Keefe, CIESenior Indoor Air Quality Consultant


Page 8 of 8


APPENDIX A

PHOTO DOCUMENTATION

WINCHESTER HIGH SCHOOLMARCH 2015 MONTHLY IAQ ASSESSMENTPHOTO DOCUMENTATION

3/23/2015 11:51:20 AM

IMAG0437.jpg

Text annotationsDESCRIPTION: GAP IN BARRIER, 1ST FLOOR BLUE STAIRWELL


3/23/2015 12:34:59 PM

IMG_20150323_123459.388.jpg

Text annotationsDESCRIPTION GAP IN BARRIER WALL, 2ND FLOOR NEAR A201


3/23/2015 12:38:15 PM

IMAG0439.jpg

Text annotationsDERSCRIPTION GAP IN CONSTRUCTION BARRIER, 2ND FLOOR BLUE

STAIRWELL


3/23/2015 12:38:36 PM

IMAG0440.jpg

Text annotationsDESCRIPTION GAPS IN CONSTRUCTION BARRIER, 2ND FLOOR BLUE

STAIRWELL


3/23/2015 1:09:05 PM

IMAG0441.jpg

Text annotationsDESCRIPTION CONSTRUCTION SIDE OF BARRIER, 2ND FLOOR A-WING

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