00-31-26-01_1-4-A_2014_03_15_San_Ysidro_Asbestos_Survey.pdf

ASBESTOS SURVEY REPORT

USIBWC San Ysidro Water Treatment Plant 2225 Dairy Mart Road

San Diego, CA 92108

Submitted to

U.S. International Boundary and Water Commission 4171 N. Mesa St., Suite C-100

El Paso, Texas 79902-1441

Issue Date: March 15, 2014

123 Technology Drive

Irvine, CA 92618 Telephone: 949.727.9336

TRC Project No: 212265

Asbestos Survey Report IBWC San Ysidro Water Treatment Plant, San Diego, CA March 15, 2014

Table of Contents

EXECUTIVE SUMMARY

ASBESTOS SURVEY

INTRODUCTION

PROJECT DESCRIPTION

SAMPLING AND ANALYTICAL PROCEDURES

INTERPRETATION OF ASBESTOS RESULTS

SAMPLED MATERIALS WHERE NO ASBESTOS WAS DETECTED

CONCLUSIONS AND RECOMMENDATIONS

DISCLAIMER

CERTIFICATION AND SIGNATORY PAGE

APPENDICES

Table 1.0 – Homogeneous Materials Summary

Appendix A - Bulk Asbestos Sample Laboratory Report

Appendix B - Sample Location Figures

Appendix C – Select Photographs

Appendix D - Inspector Certifications

EXECUTIVE SUMMARY

TRC Environmental Corporation (TRC) was contracted by the United States International Boundary and Water Commission (IBWC) to conduct an asbestos survey at the San Ysidro Waste Water Treatment Plant Buildings located at 2225 Dairy mart Road, San Diego, California. The asbestos survey comprised of surveying the accessible interior and exterior building materials of eleven (11) buildings at the Plant, three off site support buildings and the San Diego Field Office.

The survey consisted of identification of suspect building materials, assessment and quantification, collection of bulk samples of suspect asbestos containing materials, submittal of the collected samples for laboratory analysis and a report of the findings. The field asbestos survey was performed on February 13 and 14, 2012 by Mr. Sam Seneviratne, and assisted by Mr. Hector Gonzalez.

A Lead-based paint survey was not conducted at this facility based on the age of the facility. Lead-based paint was banned in residential and public buildings by the Consumer Product Safety Commission (CPSC) in 1977.

Asbestos was detected in concentrations exceeding one tenth of one percent (>0.1%) in the suspect asbestos containing materials sampled during the asbestos portion of the hazardous materials survey.

Tijuana River Flood Control Project Gauging Station

Sample Numbers Material Analytical

Results Approx

Quantity

NESHAP

Category

16-88 Roof Penetration

Mastic 20% Chrysotile <1 SF Cat II

Solids Thickening Building

Results Approx

Quantity

NESHAP

Category

11-168 Roof Penetration

10% Chrysotile 200 SF Cat II

Generator Building

Results Approx

Quantity

NESHAP

Category

12-166, 12-167 Roof Penetration

10% Chrysotile 100 SF Cat II

INTRODUCTION

TRC Environmental Corporation (TRC) was contracted by the United States International Boundary and Water Commission (IBWC) to conduct an asbestos survey at the San Ysidro Waste Water Treatment Plant Buildings located at 2225 Dairy mart Road, San Diego, California. The field activities portion of the asbestos survey was performed on February 14 and 15, 2014, by Mr.

Sam Seneviratne, California Certified Asbestos Consultant (CAC #93-0886) and Mr. Hector Gonzalez, California Certified Site Surveillance Technician (CSST # 06-4072) employed by TRC.

The asbestos survey findings found in this report will be used to effectively manage asbestos-containing materials (ACM) in the scope areas of the San Ysidro Water Treatment Plant building structures (the “Site”). The accumulated assessment information may be used in operations and maintenance plans for the facility designed to prevent accidental disturbance to ACM. TRC’s scope of the survey excluded any subsurface materials and/or structures.

BUILDING DESCRIPTION

The following provides a summary of the Buildings and appurtenant structures that were surveyed and buildings defined as the scope of work areas under the Contract with IBWC. The building structures are located on federal land, were considered non-public buildings, are secured by fencing/locked gates. A description of the building structures are as follows:

San Diego Field Office: This is a 4,320 square foot Modular Trailer with a reported construction date of 1995. It is constructed of wood and consists of a metal roof. The interior finishes consist of carpeting on the floors, vinyl floor coverings in the restrooms and kitchen, suspended ceiling panels and wood paneled walls.

Maintenance and Operations Building: The Maintenance Building is 4,860 square feet in size and the Operations Building is 3,848 square feet with a reported construction date of 2011. The interior finishes consist of rubberized floor covering, suspended ceiling panels, and gypsum board wall finishes. Roof coverings consist of built-up cap sheet roof coverings with gravel ballast.

Switchgear Building: This is a 2,639 square foot building constructed on concrete slab with metal framing and a built-up cap sheet roof with gravel ballast in 1996. The interior finishes consist of unfinished concrete floors and ceilings and wallboard wall finishes. Roof coverings consist of built-up cap sheet roof coverings with gravel ballast.

Truck Loading Building: This is a 5,992 square foot poured in place concrete building constructed in 1996. It is an all concrete building with a texture painted exterior

Head Works Grit & LLC East Building: This is a combined building that is 5,992 and 2,193 square feet in size. The building construction consists of poured in place concrete and was constructed in 1996. The interior finishes consist of unfinished concrete floors and non-slip textured floors textured exterior walls and wallboard wall finishes in the restrooms.

Administration Building: This building is 8,131 in size and is constructed with metal studs on a concrete slab and was constructed in 1996. The interior finishes consist of carpeted floor coverings, suspended ceiling panels, and gypsum board wall finishes. The exterior walls are finished with the Exterior Finish Insulation System (EFIS). Roof coverings consist of built-up cap sheet roof coverings with gravel ballast.

Dewatering Building: This building is 6924 square feet in size and consists of concrete construction. The interior finishes consist of unfinished concrete with a non-slip textured floors, textured exterior walls and built-up cap sheet roof coverings with gravel ballast.

Blower Building: This is a 7,072 square foot concrete building constructed in 2011. Finishes consist of textured exterior walls and built-up cap sheet roof coverings with gravel ballast.

Solids Thickening Building: This is a 460 square foot concrete building constructed in 2011.

Finishes consist of textured exterior walls and built-up cap sheet roof coverings with gravel ballast.

Generator Building: This is a 594 square foot concrete building constructed in 1997. Finishes consist of textured exterior walls and built-up cap sheet roof coverings with gravel ballast.

Secondary Sedimentation Building: This is a 1,040 square foot concrete building constructed in 2011. Finishes consist of textured exterior walls and built-up cap sheet roof coverings with gravel ballast.

Hollister St and Goat Canyon Pump Station Buildings: These building are 838 and 754 square feet in size and are constructed with concrete masonry units (CMU) in 2011. Finishes consist of textured exterior walls and built-up cap sheet roof coverings with gravel ballast.

Tijuana River Flood Control Gauging Station: This is a 64 square foot building and is constructed with concrete masonry units (CMU) and a concrete roof. The construction date is unknown.

SAMPLING AND ANALYTICAL PROCEDURES

Asbestos Sampling and Analytical Procedures

Representative bulk samples of suspect asbestos-containing building materials were randomly collected from the identified homogenous building material applications. Homogenous material determination was based on the following criteria:

Similar physical characteristics (same appearance, age, color and texture, etc.), Application (e.g. sprayed or trowel-on, assembly into a system, etc.), Material function (e.g. thermal insulation, floor tile, wallboard system, etc.).

Laboratory services were provided by TRC’s laboratory located in Windsor, Connecticut. TRC’s analytical laboratory is a National Voluntary Laboratory Accreditation Program (NVLAP) certified laboratory (NVLAP code # 101424-0) and is in compliance with the National Environmental Laboratory Accreditation Conference (NELAC) requirements.

Bulk samples were analyzed by polarized light microscopy (PLM) utilizing the EPA’s Test Methods: Methods for the Determination of Asbestos in Bulk Building Materials (EPA 600/R- 93/116, July 1993) and the McCrone Research Institute’s The Asbestos Particle Atlas as method references.

Analysis by PLM was performed by visual observation of the bulk sample and by microscopic analysis using dispersion staining PLM methodology. The samples were analyzed for asbestiform minerals (Chrysotile, Amosite, Crocidolite, Anthophyllite, Actinolite, and Tremolite), fibrous non-asbestos constituents (mineral wool, cellulose, etc.) and non-fibrous constituents. Using a stereoscope, the microscopist visually estimates the relative amounts of each constituent by determining the estimated area of the asbestos compared with the area estimate of the total sample.

Analysis by PLM was performed by visual observation of the bulk sample and by microscopic analysis using dispersion staining PLM methodology. The samples were analyzed for asbestiform minerals (Chrysotile, Amosite, Crocidolite, Anthophyllite, Actinolite, and Tremolite), fibrous non-asbestos constituents (mineral wool, cellulose, etc.) and non-fibrous constituents. Using a stereoscope, the microscopist visually estimates the relative amounts of each constituent by determining the estimated area of the asbestos compared with the area estimate of the total sample.

INTERPRETATION OF ASBESTOS RESULTS

The Federal OSHA, the California Occupational Safety and Health Administration (Cal/OSHA), and National Emission Standards for Hazardous Air Pollutants (NESHAP) define an asbestos-containing material (ACM) as any material containing more than one percent (>1.0%) asbestos.

Both agencies have certain classifications for ACM types as well as requirements that apply when ACM is removed and disposed. Additionally, Cal/OSHA includes the term asbestos-containing construction material (ACCM); which is any manufactured construction material containing >0.1% asbestos. The ACCM designation has been established by Cal/OSHA as a criterion for the registration and certification of contractors and consultants respectively, who provide services that, involve such materials.

The lower limit of reliable detection for asbestos using the PLM analytical method is one percent (1.0%) by volume. Any sample indicating a concentration of <1.0% can be subjected to the more stringent Point Count Method of analysis to more precisely determine the actual asbestos content.

However, Cal/OSHA states that employers performing construction activities on materials containing any detectable asbestos must comply with all applicable provisions of Title 8, California Code of Regulations (CCR), Section 1529 (8 CCR 1529). Therefore, those materials which fall outside the NESHAP definition of an ACM are regulated by Cal/OSHA, and should be handled as ACCM by qualified personnel.

Per United States EPA NESHAP regulations, “friable” materials with PLM results of less than ten percent (<10%) asbestos must be assumed ACM unless it is further analyzed using the EPA Point Count Method to more precisely determine the actual asbestos content. If this material is found to contain less than 1% asbestos by point counting, then it may be disposed of as non-hazardous waste. However, if asbestos was detected above 0.1% concentration following the point count analysis, Cal/OSHA rules would still apply, and the contractor performing removal or demolition must comply with the worker protection, training, and medical surveillance portions of the asbestos standard. Note that the term “friable asbestos-containing material” means any ACM applied on ceilings, walls, structural members, piping, duct work, or any other part of a building which when dry may be crumbled, pulverized, or reduced to powder by hand pressure. The term includes non-friable ACM after such previously non-friable material becomes damaged to the extent that when dry it may be crumbled, pulverized, or reduced to powder by hand pressure.

FINDINGS

One hundred and seventy seven (177) suspect asbestos bulk samples were submitted to TRC Industrial Hygiene Laboratory, an accredited asbestos analytical laboratory, for analysis by PLM methodology. The laboratory analyzed one hundred and ninety-two (192) distinct sample layers as per the stop at first positive analytical criteria. The following listing identifies building materials that were found to contain detectable levels of asbestos by laboratory analysis. Asbestos was detected in some of the suspect asbestos containing bulk material samples analyzed by the laboratory or were assumed/presumed ACM:

ASBESTOS CONTAINING MATERIALS

Tijuana River Flood Control Project Gauging Station

Results Approx

Quantity

NESHAP

Category

16-88 Roof Penetration

20% Chrysotile <1 SF Cat II

Solids Thickening Building

Results Approx

Quantity

NESHAP

Category

12-168 Roof Penetration

10% Chrysotile 200 SF Cat II

Generator Building

Results Approx

Quantity

NESHAP

Category

12-166, 12-167 Roof Penetration

10% Chrysotile 100 SF Cat II

SAMPLED MATERIALS WHERE NO ASBESTOS WAS DETECTED

The complete listing of the suspect asbestos containing materials sampled and submitted to the laboratory can be found in Appendix B. The other suspect ACM bulk samples that were submitted to the laboratory were determined by laboratory analysis, not contain detectable amounts of asbestos.

CONCLUSIONS AND RECOMMENDATIONS

Results of bulk sample analysis confirmed that asbestos was identified in regulated concentrations within some of the building materials sampled. At the time of this survey, the ACM identified was found to be in conditions ranging from poor to good. If materials with similar physical characteristics to the identified ACM are encountered in other areas or buildings other than what is noted in this survey report, these materials must be considered to be asbestos containing unless an appropriate survey, sampling, and laboratory analysis of bulk samples obtained from these materials proves otherwise.

Persons performing demolition activities/work on Site should be aware that additional materials may be present in wall or ceiling cavities and voids and in areas not specifically identified in this report. Additionally the Contractor must be aware that suspect ACM which are either inaccessible or hidden in voids may exist and can be exposed during demolition activities. Care should be used when performing work that disturbs building materials or during subsurface work activities where piping or asbestos-contaminated soil may exist. Any suspect asbestos containing materials uncovered during maintenance, renovation, demolition, or excavation activities that are not addressed in this inspection report, or presumed asbestos containing materials (e.g. fire doors with asbestos laden cores), must be sampled by an accredited asbestos inspector prior to disturbance, or they must otherwise be assumed and treated as asbestos containing.

DISCLAIMER

The content presented in this report is based on data collected during the site inspection and survey, review of pertinent regulations, requirements, guidelines and commonly followed industry standards, and information provided (if any) by the property owner, their clients, agents, and representatives for the property described as IBWC San Ysidro Water Treatment Plant, San Diego, CA.

The work has been conducted in an objective and unbiased manner and in accordance with generally accepted professional practice for this type of work. TRC believes the data and analysis to be accurate and relevant, but cannot accept responsibility for the accuracy or completeness of available documentation or possible withholding of information of other parties. Structures or components thereof surveyed may contain hidden surfaces or materials requiring destructive access to inspect and/or sample. It is possible that additional materials could be discovered during destructive or demolition activities. In the event additional materials (not identified herein) are discovered during such activities, additional investigation and sampling may be necessary.

This asbestos and lead-based paint inspection report is designed to aid the Owner, its architect, construction manager, general contractor, and asbestos or LBP abatement contractor in locating ACM and/or LBP on this Site. This report is not intended for, and may not be utilized as, a bidding document or as an abatement project specification document.

CERTIFICATION AND SIGNATORY PAGE

TRC hereby certifies that the services conducted and described in this document and the findings resulting from those services reported herein have been provided in a manner consistent with the current standards of the profession and. to the best of our knowledge, comply with all federal, state, and local statutes, regulations, and ordinances.

Surveyed and Reported by:

TRC ENVRIONMENTAL CORPORATION

Sam Seneviratne, CAC, CDPH I/A Project Manager Cal-OSHA CAC #93-0886

CA DPH # 9658

Reviewed by:

Douglas W. Coburn, CAC, CDPH I/A Sr. Project Manager Cal-OSHA CAC # 92-0223

CA DPH # 14092

TABLE 1.0

Homogeneous Materials Summary

TABLES – HOMOGENOUS MATERIALS SUMMARY

International Boundary & Water Commission – San Yisidro, CA Page 1

Building Name Sample Numbers Material Material Location(s) Analytical Results Approx

Quantity

NESHAP

Category

Administration Building

8-1 through 8-3 2’ x 2’ Suspended Ceiling

Panel Main Entry Lobby, Hallway Corridor

ND 3,600 SF NA

Administration Building

8-4 through 8-6 Beige Wall Paper Main Entry Lobby, Hallway Corridor

ND 12,000 SF NA

Administration Building

8-7 through 8-9 Wallboard Main Entry Lobby, Hallway Corridor

ND 12,000 SF NA

Administration Building

8-10 through 8-12 Joint Compound Main Entry Lobby, Hallway Corridor

ND 12,000 SF NA

Administration Building

8-13 through 8-15 4” Beige Cove Base and

Cream Glue Main Entry Lobby, Hallway Corridor

ND 400 LF NA

Administration Building

8-16 through 8-18 Green with Wood Chip

Paper Vinyl Sheet Flooring and Brown Glue

Main Entry Lobby, Hallway Corridor

ND 1,800 SF NA

Administration Building

8-19 Concrete Main Entry Lobby, Hallway Corridor

ND 3,600 SF NA

Administration Building

8-22 through 8-24 Carpet Mastic Main Entry Lobby, Conference Room

ND 1,800 SF NA

Administration Building

8-25 through 8-27 Cream Ceramic Tile Grout Restrooms Walls and

Floors

ND 10,000 SF NA

Administration Building

8-28 through 8-30 Exterior Finish Insulation

System (EFIS) Exterior Walls ND 5,000 SF NA

Administration Building

8-31 through 8-33 Duct Sealant Mastic Roof HVAC Ducting ND 50 SF NA

Administration Building

8-34 through 8-36 Black Penetration Mastic Roof Penetrations ND 50 SF NA

Administration Building

8-37 through 8-39 Built up Cap Sheet (Top

Layer) Roof ND 6,000 SF NA

Administration Building

8-40 through 8-42 Built up Cap Sheet (2nd

Layer) Roof ND 6,000 SF NA

Administration Building

8-43 through 8-45 Roof Insulation Roof ND 6,000 SF NA

International Boundary & Water Commission – San Yisidro, CA Page 2

Quantity

NESHAP

Category

Sludge Dewatering Building

9-46 through 9-48 Non-Slip Surface/Texture Top of Concrete Floor ND 10,000 SF NA

Sludge Dewatering Building

9-49 Concrete Floor ND 20,000 SF NA

Sludge Dewatering Building

9-52 through 9-54 Caulk between Concrete

Floor Panels Floor ND 2,000 LF NA

Sludge Dewatering Building

9-55 through 9-57 Textured Paint Exterior Concrete Walls ND 8,000 SF NA

Sludge Dewatering Building

9-58 through 9-60 Duct Sealant Mastic Lower and Upper Roofs ND 16 SF NA

Sludge Dewatering Building

9-61 through 9-63 Penetration Mastic Lower and Upper Roofs ND 40 SF NA

Sludge Dewatering Building

9-64 through 9-66 Roof Cap Sheet Lower and Upper Roofs ND 7,000 SF NA

Sludge Dewatering

9-67 through 9-69 Roof Insulation Lower and Upper Roofs ND 7,000 SF NA

Quantity

NESHAP

Category

Truck Loading Building

5-70 through 5-72 Textured Paint Exterior Walls ND 10,000 SF NA

Truck Loading

5-73 Concrete Throughout ND 8,000 SF NA

International Boundary & Water Commission – San Yisidro, CA Page 3

Building Name Sample Numbers Material Material Location(s) Analytical Results Approx

Quantity

NESHAP

Category

Head Works Building (Grit and

LLC)

6/7-76 through 6/7-78

Non-Slip Textured Floor Coating

Throughout ND 3,000 SF NA

Head Works Building (Grit and

LLC)

6/7-79 Concrete Throughout ND 20,000 SF NA

Head Works Building (Grit and

LLC)

6/7-82 through 6/7-84

Textured Wall Paint Throughout ND 6,000 SF NA

Head Works Building (Grit and

LLC)

6/7-112 through 6/7-114

Wallboard Restroom Partition Walls ND 160 SF NA

Head Works Building (Grit and

LLC)

6/7-115 through 6/7-117

Joint Compound Restroom Partition Walls ND 160 SF NA

Quantity

NESHAP

Category

Tijuana River Floor Control

Gaging Station

16-85 through 16-87

Concrete CMU and Grout Walls ND 640 SF NA

Tijuana River Floor Control

Gaging Station 16-88 Penetration Mastic Penetrations ND <1 SF NA

International Boundary & Water Commission – San Yisidro, CA Page 4

Building Name Sample Numbers Material Material Location(s) Analytical Results Approx

Quantity

NESHAP

Category

Goat Canyon Pump Station

15-91 through 15-93

Sealant Caulk on Concrete Floor, Wall and

Penetrations

ND 100 LF NA

Goat Canyon Pump Station

15-94 through 15-95

Roof Cap Sheet with Gravel Roof ND 800 SF NA

Goat Canyon Pump Station

15-97 through 15-98

Mastic at Penetrations Penetrations ND 60 SF NA

Goat Canyon Pump Station

15-100 through 15-101

Textured Exterior Wall Paint

Exterior Walls ND 1,800 SF NA

Quantity

NESHAP

Category

Hollister Street Pump Station

14-103 Textured Exterior Wall

Paint Exterior Walls ND 1,800 SF NA

Hollister Street Pump Station

14-106 Roof Cap Sheet with Gravel Roof ND 800 SF NA

Hollister Street Pump Station

14-109 Mastic at Penetrations Penetrations ND 60 SF NA

Quantity

NESHAP

Category

Operations and Maintenance

Building

2/3-118 through 2/3-120

2’ x 2’ Drop Ceiling Panel Throughout ND 6,000 SF NA

Operations and Maintenance

Building

2/3-121 through 2/3-122

Wallboard Throughout ND 13,000 SF NA

Operations and Maintenance

Building

2/3-124 through 2/3-125

Joint Compound Throughout ND 13,000 SF NA

International Boundary & Water Commission – San Yisidro, CA Page 5

Building Name Sample Numbers Material Material Location(s) Analytical Results Approx

Quantity

NESHAP

Category

Operations and Maintenance

Building

2/3-127 through 2/3-129

5” Cream Cove Base and Glue

Throughout ND 800 LF NA

Operations and Maintenance

Building

2/3-130 through 2/3-132

Rubber Flooring and Clear Glue

Throughout ND 6,000 SF NA

Operations and Maintenance

Building

2/3-133 through 2/3-135

Roof Cap Sheet With Gravel

Roof ND 6,000 SF NA

Operations and Maintenance

Building

2/3-136 through 2/3-138

Mastic at Penetrations Roof Penetrations ND 100 SF NA

Operations and Maintenance

Building 2/3-139 Wallboard Throughout ND 2,000 SF NA

Operations and Maintenance

2/3-142 Joint Compound Throughout ND 2,000 SF NA

Quantity

NESHAP

Category

Main Switchgear Building

4-145 through 4-

Wallboard Throughout ND 3,000 SF NA

Main Switchgear Building

4-148 through 4-

Joint Compound Throughout ND 3,000 SF NA

Main Switchgear Building

4-151 through 4-

Roof Cap Sheet with Gravel Roof ND 2,400 SF NA

Main Switchgear Building

4-154 through 4-

Mastic at Penetrations Penetrations ND 50 SF NA

International Boundary & Water Commission – San Yisidro, CA Page 6

Building Name Sample Numbers Material Material Location(s) Analytical Results Approx

Quantity

NESHAP

Category

Generator Building (Building 11 & 12)

12-157 through 11-159

Exterior Concrete Texture Exterior Walls ND 2,000 SF NA

Generator Building (Building 11 & 12)

12-160 through 12-162

Caulk between Concrete Floor Panels

Building 12 – Floor ND 200 LF NA

Generator Building (Building 11 & 12)

12-163 through 11-165

Roof Cap Sheet Roofs ND 1,000 SF NA

Generator Building (Building 11 & 12)

12-166 through 11-168

Penetration Mastic Roof Penetrations 10% Chrysotile 120 SF Cat II

Generator Building (Building 11 & 12)

12-169 through 12-171

Duct Sealant Mastic Building 12 – HVAC

Ducting

ND 200 SF NA

Quantity

NESHAP

Category

Building 10 10-172 Roof Cap with Gravel Roofs ND 7,350 SF NA

Building 10 10-175 through

10-176 Penetration Mastic/Sealant Penetrations ND 100 SF NA

Building 10 & 13 10-178 through

13-180 Exterior Concrete Texture Exterior Walls ND 42,000 SF NA

Building 13 13-181 through

13-183 Duct Sealant Mastic Roof ND 40 SF NA

Building 13 13-184 through

13-185 Roof Penetration Sealant Roof Penetrations ND 40 SF NA

Building 13 13-187 through

13-188 Roof Cap Sheet with Foam

Insulation Roof ND 1,200 SF NA

International Boundary & Water Commission – San Yisidro, CA Page 7

Building Name Sample Numbers Material Material Location(s) Analytical Results Approx

Quantity

NESHAP

Category

Building 1 1-190 through

1-191 2’ x 4’ Suspended Ceiling

Panel Throughout ND 3,564 SF NA

Building 1 1-193 through

1-195 Carpet Glue

Throughout (excluding Restrooms and Kitchen)

ND 3,200 SF NA

Building 1 1-196 through

1-198 Cream Vinyl Sheet Flooring Kitchen and Restrooms ND 170 SF NA

Building 1 1-199 through

1-201 6” Brown Cove Base and

White Glue Kitchen and Restrooms ND 110 LF NA

Building 1 1-202 through

1-204 6” Clay Tile Grout Front Patio ND 600 SF NA

Table Key

ND – None Detected NA – Not Applicable SF – Square Feet LF – Linear Feet Cu Ft – Cubic Feet Cat I – Category I Non-Friable Asbestos Containing Material Cat II - Category II Non-Friable Asbestos Containing Material RACM – Regulated Asbestos Containing Material (Friable) ACM – Asbestos Containing Material; Contains greater than 1% asbestos by weight NESHAP – National Emissions Standards for Hazardous Air Pollutants (EPA asbestos regulation)

Appendix A

Bulk Asbestos Sample Laboratory Report

Industrial Hygiene Laboratory 21 Griffin Road North Windsor, CT 06095

(860) 298-6308

43602.IBWC.doc

Lab Log #: 0043602

2225 Dairy Mart Road, San Ysidro, CA

CLIENT: International Boundary & Water Commission

Site:

Date Analyzed:

Date Received:

02/19/2014

02/18/2014

Project #: 209058.0009.0000

BULK ASBESTOS ANALYSIS REPORT

Layer No. Asbestos Type

Other Matrix MaterialsSample No. Homogenous

Asbestos

POLARIZED LIGHT MICROSCOPY by EPA 600/R-93/116

Color Multi-

Layered cellulose mineral wool

None- -8-1 ND40% 40%

Yes NoWhite/Grey cellulose mineral wool

None- -8-2 ND40% 40%

Yes NoWhite/Grey synthetic fiber None- -8-3 ND80%Yes NoBeige synthetic fiber None- -8-4 ND80%Yes NoBeige synthetic fiber None- -8-5 ND80%Yes NoBeige synthetic fiber None- -8-6 ND80%Yes NoBeige

- - - None- -8-7 NDYes NoWhite

- - - None- -8-8 NDYes NoWhite

- - - None- -8-9 NDYes NoWhite

- - - None- -8-10 NDYes NoWhite

- - - None- -8-11 NDYes NoWhite

- - - None- -8-12 NDYes NoWhite

- - - None18-13 NDNo YesCream (glue)

- - - None28-13 NDNo YesBeige (cove base)

- - - None18-14 NDNo YesCream (glue)

- - - None28-14 NDNo YesBeige (cove base)

- - - None18-15 NDNo YesCream (glue)

- - - None28-15 NDNo YesBeige (cove base)

TRC LABORATORY ASBESTOS ANALYTICAL ACCREDITATIONS

NVLAP Lab Code 101424-0

RI #AAL-007C3 TX #300354

AIHA #100122

VT #AL014538

CT #PH-0426

VA #3333 000283

NY #10980

NJ #CT004

WV# LT000356

CA #10275CA

ME LA-0075, LB-0071

AZ #A20944

MA #AA000052

HI #L-09-004

21 Griffin Road North Windsor, CT 06095

(860) 298-6308

43602.IBWC.doc

Layer No. Asbestos Type

Other Matrix MaterialsSample No. Homogenous

Asbestos

POLARIZED LIGHT MICROSCOPY by EPA 600/R-93/116

Color Multi-

Layered

- - - None18-16 NDNo YesBrown (glue)

- - - None28-16 NDNo YesGreen (vinyl floor)

- - - None18-17 NDNo YesBrown (glue)

- - - None28-17 NDNo YesGreen (vinyl floor)

- - - None18-18 NDNo YesBrown (glue)

- - - None28-18 NDNo YesGreen (vinyl floor)

- - - None- -8-19 NDYes NoGrey

- - - None- -8-22 NDYes NoYellow

- - - None- -8-23 NDYes NoYellow

- - - None- -8-24 NDYes NoYellow

- - - None- -8-25 NDYes NoGrey

- - - None- -8-26 NDYes NoGrey

- - - None- -8-27 NDYes NoGrey

- - - None- -8-28 NDYes NoGrey

- - - None- -8-29 NDYes NoGrey

- - - None- -8-30 NDYes NoGrey

- - - None- -8-31 NDYes NoGrey

- - - None- -8-32 NDYes NoGrey

- - - None- -8-33 NDYes NoGrey

- - - None- -8-34 NDYes NoBlack

- - - None- -8-35 NDYes NoBlack

- - - None- -8-36 NDYes NoBlack synthetic fiber None- -8-37 ND10%Yes NoBlack synthetic fiber None- -8-38 ND10%Yes NoBlack

TRC LABORATORY ASBESTOS ANALYTICAL ACCREDITATIONS

NVLAP Lab Code 101424-0

RI #AAL-007C3 TX #300354

AIHA #100122

VT #AL014538

CT #PH-0426

VA #3333 000283

NY #10980

NJ #CT004

WV# LT000356

CA #10275CA

ME LA-0075, LB-0071

AZ #A20944

21 Griffin Road North Windsor, CT 06095

(860) 298-6308

43602.IBWC.doc

Layer No. Asbestos Type

Other Matrix MaterialsSample No. Homogenous

Asbestos

POLARIZED LIGHT MICROSCOPY by EPA 600/R-93/116

Color Multi-

Layered synthetic fiber None- -8-39 ND10%Yes NoBlack fibrous glass None- -8-40 ND10%Yes NoBlack fibrous glass None- -8-41 ND10%Yes NoBlack fibrous glass None- -8-42 ND10%Yes NoBlack cellulose None- -8-43 ND80%Yes NoBrown cellulose None- -8-44 ND80%Yes NoBrown cellulose None- -8-45 ND80%Yes NoBrown

- - - None- -9-46 NDYes NoBeige

- - - None- -9-47 NDYes NoBeige

- - - None- -9-48 NDYes NoBeige

- - - None- -9-49 NDYes NoGrey

- - - None- -9-52 NDYes NoGrey

- - - None- -9-53 NDYes NoGrey

- - - None- -9-54 NDYes NoGrey

- - - None- -9-55 NDYes NoBeige

- - - None- -9-56 NDYes NoBeige

- - - None- -9-57 NDYes NoBeige synthetic fiber None- -9-58 ND10%Yes NoGrey synthetic fiber None- -9-59 ND10%Yes NoGrey synthetic fiber None- -9-60 ND10%Yes NoGrey cellulose None- -9-61 ND20%Yes NoBlack cellulose None- -9-62 ND20%Yes NoBlack cellulose None- -9-63 ND20%Yes NoBlack fibrous glass None- -9-64 ND10%Yes NoBlack

TRC LABORATORY ASBESTOS ANALYTICAL ACCREDITATIONS

NVLAP Lab Code 101424-0

RI #AAL-007C3 TX #300354

AIHA #100122

VT #AL014538

CT #PH-0426

VA #3333 000283

NY #10980

NJ #CT004

WV# LT000356

CA #10275CA

ME LA-0075, LB-0071

AZ #A20944

21 Griffin Road North Windsor, CT 06095

(860) 298-6308

43602.IBWC.doc

Layer No. Asbestos Type

Other Matrix MaterialsSample No. Homogenous

Asbestos

POLARIZED LIGHT MICROSCOPY by EPA 600/R-93/116

Color Multi-

Layered fibrous glass None- -9-65 ND10%Yes NoBlack fibrous glass None- -9-66 ND10%Yes NoBlack cellulose None- -9-67 ND80%Yes NoBrown cellulose None- -9-68 ND80%Yes NoBrown cellulose None- -9-69 ND80%Yes NoBrown

- - - None- -5-70 NDYes NoBeige

- - - None- -5-71 NDYes NoBeige

- - - None- -5-72 NDYes NoBeige

- - - None- -5-73 NDYes NoGrey

- - - None- -6/7-76 NDYes NoBlack

- - - None- -6/7-77 NDYes NoBlack

- - - None- -6/7-78 NDYes NoBlack

- - - None- -6/7-79 NDYes NoGrey

- - - None- -6/7-82 NDYes NoBeige

- - - None- -6/7-83 NDYes NoBeige

- - - None- -6/7-84 NDYes NoBeige

- - - None- -6/7-112 NDYes NoWhite

- - - None- -6/7-113 NDYes NoWhite

- - - None- -6/7-114 NDYes NoWhite

- - - None- -6/7-115 NDYes NoWhite

- - - None- -6/7-116 NDYes NoWhite

- - - None- -6/7-117 NDYes NoWhite

- - - None- -16-85 NDYes NoLight Grey

- - - None- -16-86 NDYes NoGrey

TRC LABORATORY ASBESTOS ANALYTICAL ACCREDITATIONS

NVLAP Lab Code 101424-0

RI #AAL-007C3 TX #300354

AIHA #100122

VT #AL014538

CT #PH-0426

VA #3333 000283

NY #10980

NJ #CT004

WV# LT000356

CA #10275CA

ME LA-0075, LB-0071

AZ #A20944

21 Griffin Road North Windsor, CT 06095

(860) 298-6308

43602.IBWC.doc

Layer No. Asbestos Type

Other Matrix MaterialsSample No. Homogenous

Asbestos

POLARIZED LIGHT MICROSCOPY by EPA 600/R-93/116

Color Multi-

Layered

- - - None- -16-87 NDYes NoGrey

- - - Chrysotile- -16-88 20%Yes NoBlack synthetic fiber None- -15-91 ND10%Yes NoGrey synthetic fiber None- -15-92 ND10%Yes NoGrey synthetic fiber None- -15-93 ND10%Yes NoGrey fibrous glass None- -15-94 ND10%Yes NoBlack fibrous glass None- -15-95 ND10%Yes NoBlack cellulose None- -15-97 ND10%Yes NoBlack cellulose None- -15-98 ND10%Yes NoBlack

- - - None- -15-100 NDYes NoBeige

- - - None- -15-101 NDYes NoBeige

- - - None- -14-103 NDYes NoBeige cellulose None- -14-106 ND30%Yes NoBlack cellulose None- -14-109 ND10%Yes NoBlack cellulose mineral wool

None- -2/3-118 ND40% 40%

Yes NoWhite/Grey cellulose mineral wool

None- -2/3-119 ND40% 40%

Yes NoWhite/Grey cellulose mineral wool

None- -2/3-120 ND40% 40%

Yes NoWhite/Grey

- - - None- -2/3-121 NDYes NoWhite

- - - None- -2/3-122 NDYes NoWhite

- - - None- -2/3-124 NDYes NoWhite

- - - None- -2/3-125 NDYes NoWhite

- - - None12/3-127 NDNo YesCream (glue)

- - - None22/3-127 NDNo YesCream (cove base)

TRC LABORATORY ASBESTOS ANALYTICAL ACCREDITATIONS

NVLAP Lab Code 101424-0

RI #AAL-007C3 TX #300354

AIHA #100122

VT #AL014538

CT #PH-0426

VA #3333 000283

NY #10980

NJ #CT004

WV# LT000356

CA #10275CA

ME LA-0075, LB-0071

AZ #A20944

21 Griffin Road North Windsor, CT 06095

(860) 298-6308

43602.IBWC.doc

Layer No. Asbestos Type

Other Matrix MaterialsSample No. Homogenous

Asbestos

POLARIZED LIGHT MICROSCOPY by EPA 600/R-93/116

Color Multi-

Layered

- - - None12/3-128 NDNo YesCream (glue)

- - - None22/3-128 NDNo YesCream (cove base)

- - - None12/3-129 NDNo YesCream (glue)

- - - None22/3-129 NDNo YesCream (cove base)

- - - None12/3-130 NDNo YesColorless (glue)

- - - None22/3-130 NDNo YesBlue (flooring)

- - - None12/3-131 NDNo YesColorless (glue)

- - - None22/3-131 NDNo YesBlue (flooring)

- - - None12/3-132 NDNo YesColorless (glue)

- - - None22/3-132 NDNo YesBlue (flooring) cellulose None- -2/3-133 ND10%Yes NoBlack cellulose None- -2/3-134 ND10%Yes NoBlack cellulose None- -2/3-135 ND10%Yes NoBlack cellulose None- -2/3-136 ND30%Yes NoBlack cellulose None- -2/3-137 ND30%Yes NoBlack cellulose None- -2/3-138 ND30%Yes NoBlack

- - - None- -2/3-139 NDYes NoWhite

- - - None- -2/3-142 NDYes NoWhite

- - - None- -4-145 NDYes NoWhite

- - - None- -4-146 NDYes NoWhite

- - - None- -4-147 NDYes NoWhite

- - - None- -4-148 NDYes NoWhite

- - - None- -4-149 NDYes NoWhite

- - - None- -4-150 NDYes NoWhite

TRC LABORATORY ASBESTOS ANALYTICAL ACCREDITATIONS

NVLAP Lab Code 101424-0

RI #AAL-007C3 TX #300354

AIHA #100122

VT #AL014538

CT #PH-0426

VA #3333 000283

NY #10980

NJ #CT004

WV# LT000356

CA #10275CA

ME LA-0075, LB-0071

AZ #A20944

21 Griffin Road North Windsor, CT 06095

(860) 298-6308

43602.IBWC.doc

Layer No. Asbestos Type

Other Matrix MaterialsSample No. Homogenous

Asbestos

POLARIZED LIGHT MICROSCOPY by EPA 600/R-93/116

Color Multi-

Layered synthetic fiber None- -4-151 ND10%Yes NoBlack synthetic fiber None- -4-152 ND10%Yes NoBlack synthetic fiber None- -4-153 ND10%Yes NoBlack cellulose None- -4-154 ND20%Yes NoBlack cellulose None- -4-155 ND20%Yes NoBlack cellulose None- -4-156 ND20%Yes NoBlack

- - - None- -12-157 NDYes NoBeige

- - - None- -12-158 NDYes NoBeige

- - - None- -11-159 NDYes NoBeige

- - - None- -12-160 NDYes NoGrey

- - - None- -12-161 NDYes NoGrey

- - - None- -12-162 NDYes NoGrey cellulose fibrous glass

None- -12-163 ND10% 10%

Yes NoBlack cellulose fibrous glass

None- -12-164 ND10% 10%

Yes NoBlack cellulose fibrous glass

None- -11-165 ND10% 10%

Yes NoBlack

- - - Chrysotile- -12-166 10%Yes NoBlack

- - - -- -12-167 NA/PS- - - -- -

- - - -- -11-168 NA/PS- - - -- -

synthetic fiber None- -12-169 ND2%Yes NoBlack synthetic fiber None- -12-170 ND2%Yes NoBlack synthetic fiber None- -12-171 ND2%Yes NoBlack fibrous glass None- -10-172 ND10%Yes NoBlack

TRC LABORATORY ASBESTOS ANALYTICAL ACCREDITATIONS

NVLAP Lab Code 101424-0

RI #AAL-007C3 TX #300354

AIHA #100122

VT #AL014538

CT #PH-0426

VA #3333 000283

NY #10980

NJ #CT004

WV# LT000356

CA #10275CA

ME LA-0075, LB-0071

AZ #A20944

21 Griffin Road North Windsor, CT 06095

(860) 298-6308

43602.IBWC.doc

Layer No. Asbestos Type

Other Matrix MaterialsSample No. Homogenous

Asbestos

POLARIZED LIGHT MICROSCOPY by EPA 600/R-93/116

Color Multi-

Layered cellulose synthetic fiber

None- -10-175 ND10% 5%

Yes NoBlack cellulose synthetic fiber

None- -10-176 ND10% 5%

Yes NoBlack

- - - None- -10-178 NDYes NoBeige

- - - None- -10-179 NDYes NoBeige

- - - None- -13-180 NDYes NoBeige

- - - None- -13-181 NDYes NoGrey

- - - None- -13-182 NDYes NoGrey

- - - None- -13-183 NDYes NoGrey cellulose None- -13-184 ND30%Yes NoBlack fibrous glass None- -13-187 ND10%Yes NoBlack fibrous glass None- -13-188 ND10%Yes NoBlack cellulose mineral wool

None- -1-190 ND40% 40%

Yes NoWhite/Grey cellulose mineral wool

None- -1-191 ND40% 40%

Yes NoWhite/Grey cellulose mineral wool

None- -1-192 ND40% 40%

Yes NoWhite/Grey

- - - None- -1-193 NDYes NoYellow

- - - None- -1-194 NDYes NoYellow

- - - None- -1-195 NDYes NoYellow cellulose None- -1-196 ND30%Yes NoGrey cellulose None- -1-197 ND30%Yes NoGrey cellulose None- -1-198 ND30%Yes NoGrey

- - - None11-199 NDNo YesWhite (glue)

- - - None21-199 NDNo YesBrown (cove base)

TRC LABORATORY ASBESTOS ANALYTICAL ACCREDITATIONS

NVLAP Lab Code 101424-0

RI #AAL-007C3 TX #300354

AIHA #100122

VT #AL014538

CT #PH-0426

VA #3333 000283

NY #10980

NJ #CT004

WV# LT000356

CA #10275CA

ME LA-0075, LB-0071

AZ #A20944

21 Griffin Road North Windsor, CT 06095

(860) 298-6308

43602.IBWC.doc

Layer No. Asbestos Type

Other Matrix MaterialsSample No. Homogenous

Asbestos

POLARIZED LIGHT MICROSCOPY by EPA 600/R-93/116

Color Multi-

Layered

- - - None11-200 NDNo YesWhite (glue)

- - - None21-200 NDNo YesBrown (cove base)

- - - None11-201 NDNo YesWhite (glue)

- - - None21-201 NDNo YesBrown (cove base)

- - - None- -1-202 NDYes NoGrey

- - - None- -1-203 NDYes NoGrey

- - - None- -1-204 NDYes NoGrey

Reporting limit- asbestos present at 1%

Trace - asbestos was observed at level of less than 1% NA/PS - Not Analyzed / Positive Stop

The Laboratory at TRC follows the EPA's Interim Method for the Determination of Asbestos in Bulk Insulation (1982), and the EPA recommended Method for the Determination of Asbestos in Bulk Building Materials (EPA/600/R-93/116), July 1993, R.L. Perkins and B.W. Harvey which utilizes polarized light microscopy (PLM). Our analysts have completed an accredited course in asbestos identification. TRC's Laboratory is accredited under the National Voluntary Laboratory Accreditation Program (NVLAP), for Bulk Asbestos Fiber Analysis, NVLAP Code 18/A01, effective through June 30, 2014.

TRC is an American Industrial Hygiene Association (AIHA) accredited lab for PLM effective through October 1, 2014. Asbestos content is determined by visual estimate unless otherwise indicated. Quality Control is performed in-house on at least 10% of samples and the QC data related to the samples is available upon written request from the client.

This report shall not be reproduced, except in full, without the written approval of TRC. This report must not be used by the client to claim product endorsement by NVLAP or any agency of the U.S. Government. This report relates only to the items tested.

ND - asbestos was not detected

Note: Polarized-light microscopy is not consistently reliable in detecting asbestos in floor coverings and similar non-friable organically bound materials. In those cases, negative results must be confirmed by quantitative transmission electron microscopy.

Analyzed by: Reviewed by: Date Issued

02/21/2014Kathleen Williamson, Laboratory Manager Amanda Parkins, Approved Signatory

TRC LABORATORY ASBESTOS ANALYTICAL ACCREDITATIONS

NVLAP Lab Code 101424-0

RI #AAL-007C3 TX #300354

AIHA #100122

VT #AL014538

CT #PH-0426

VA #3333 000283

NY #10980

NJ #CT004

WV# LT000356

CA #10275CA

ME LA-0075, LB-0071

AZ #A20944

Appendix B

Sample Location Figures

Appendix C

Select Photographs

Photographs USIBWC San Ysidro, CA

TRC Job No. Photographs Taken By: Client: Site Name & Address:

209058 Phase 9 Sam Seneviratne USIBWC.

San Ysidro Waste Water treatment Plant

2225 Dairy Mart Rd. San Ysidro, CA

1. Main Admin Building - Metal Stud Wall on Concrete Slab

2. Truck Loading Building - Concrete

3. Head Works Building - Concrete 4. Head Works Building - Interior

5. Tijuana Flood Gauging Station 6. Tijuana Flood Gauging Station - Penetration Mastic

7. Sludge De-watering Building 8. Administration Building Roof (typical)

9. Administration Building - HVAC ducting (typical)

10. Goat Canyon and Hollister St.

Pump Station

11. Goat Canyon and Hollister St.

Pump Station - Sealant Mastic at Penetrations

12. Goat Canyon and Hollister St.

Pump Station - Sealant Mastic at Concrete Tilt-up Walls

13. Operations and Maintenance Building (O&M Bldg.)

14. O&M Building - Rubber flooring and base coves in hallways

15. O&M Building - Roof cap sheet coverings with gravel

16. Generator building

17. San Diego Field Office 18. San Diego Field Office - Vinyl flooring and base coves in restrooms and kitchen

Appendix D

Inspector Certifications