Asbestos_Lead_Paint_Survey_2014.pdf

Asbestos & Lead‐Paint Survey Report

USIBWC Falcon Heights Facility

Falcon Heights, Texas

Prepared for:

Submitted by:

7600 North 16th Street, Suite 110

Phoenix, Arizona 85020 Telephone: (602) 266-8288 Facsimile: (602) 266-9355

April 9, 2014

TRC Project No: 209058

Limited Asbestos and Lead-Based Paint Survey Page 1 IBWC Falcon Dam Facility, Falcon Heights, TX March 19, 2014

Table of Contents

1.0 INTRODUCTION

2.0 BUILDING DESCRIPTIONS

3.0 BACKGROUND

3.1 ACM Categories

3.2 Asbestos Sampling and Analytical Procedures

4.0 ASBESTOS FINDINGS

4.1 Asbestos Containing Materials – Positive (>1%) – TRC Survey November, 2013

4.2 Assumed Asbestos Containing Materials – TRC Survey November, 2013

4.3 Previously Identified Asbestos Containing Materials – Positive (>1%)

4.4 Negative Materials – No Asbestos Detected – TRC Survey November, 2013

4.5 Previously Identified Negative Materials – No Asbestos Detected

5.0 ASBESTOS RECOMMENDATIONS

6.0 LEAD-BASED PAINT INSPECTION

6.1 Definition of Lead-Based Paint

6.2 Sampling and Analytical Procedures

7.0 SUMMARY OF LEAD-BASED PAINT TESTING RESULTS

7.1 LBP – Positive (≥1.0 mg/cm2) – TRC Survey November, 2013

7.2 Previously Identified LBP – Positive (≥1.0 mg/cm2)

8.0 LEAD-BASED PAINT RECOMMENDATIONS

8.1 Lead-Based Paint General Recommendations

9.0 DISCLAIMER

10.0 SIGNATORY

10.0 TABLES

Appendices

Appendix A – Bulk Asbestos Sample laboratory Report Appendix B – Lead-Based Paint XRF Field Data sheets Appendix C – Sample Location Drawings Appendix D – Photographs Appendix E – Inspector Certifications Appendix F – Previous Asbestos Inspection Reports

Limited Asbestos and Lead-Based Paint Survey Page 1 IBWC Falcon Heights Facility, Falcon Heights, TX April 9, 2014

1.0 Introduction

TRC Environmental Corporation (TRC) was contracted by the United States International Boundary and Water Commission (IBWC) to conduct a limited asbestos and a lead based paint survey at the Falcon Dam Facility located at 1 Reservoir Road, Falcon Heights, Texas. The survey was performed on November 13, 14, and 15, 2013, by Mr. Douglas Coburn, an EPA Accredited AHERA Asbestos Building inspector and EPA Lead Risk assessor, and Mr. Joe Bohnaker employed by TRC. The survey included the inspection and assessment of accessible interior and exterior construction materials associated with the building structures on site not previously surveyed by VIVA Environmental Inc.

The limited asbestos and lead-based paint survey findings will be used to effectively manage asbestos-containing materials (ACM) and Lead-Based Paint (LBP) in the scope areas of the Falcon Dam Facility 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 and LBP.

The previous asbestos and lead-based paint inspection report completed by VIVA Environmental, Inc., is included in Appendix E. A summary of the sampling results from the previous inspections are provided in the results section of this report along with the findings produced during this inspection.

2.0 Building Descriptions

The following provides a summary of the Falcon Heights facility areas defined as the scope of work areas under Contract # IBM09D0010. All of the structures are located on federal land, were considered non-public buildings, are secured by fencing/locked gates, and have industrial processes. A description of the building structures are as follows:

Building Name Year of Construction Construction Type

Main Office Building 1954 Masonry brick and wood frame

Hydro Building 1961 CMU block and wood frame and siding

Mechanic Shop 1954 Masonry brick and wood frame

Carpentry Shop 1954 Wood frame and metal siding and roof

Warehouse 1954 Wood frame and metal siding and roof

Welding Shop 1987 Metal frame, metal siding and roof

Training Hall 1954 Masonry brick and wood frame

Water Treatment Plant 1951 Concrete structure with flat asphalt roof

Large Warehouse 1954 Wood frame and metal siding/roof

Paint Room 2007 Metal frame, metal exterior

Hydro Electric Power Plant 1954 Concrete and steel construction

Limited Asbestos and Lead-Based Paint Survey Page 2

Building Name Year of Construction Construction Type

Residences B, C, D, F, & G 1961 Masonry Block walls, wood frame roof, on concrete slab

Residences C 102, 104, 106 H, I & L

1972 Masonry Block walls, wood frame roof, on concrete slab

Carport 2005 Metal frame, metal roof

Carport attached to Mechanic Shop

1954 Wood Frame and asphalt shingle roof

Carports (2) 1954 Metal frame, metal roof

Carport 1995 Metal frame, one metal wall, metal roof

Carport (attached to Welding Shop)

1987 Metal frame, metal roof

Carport (Power Plant) 2004 Metal frame, metal roof

Radio Room (Falcon) 2004 Concrete aggregate walls, lightweight concrete roof, on concrete slab.

Radio Room (Zapata) 2004 Concrete aggregate walls, lightweight concrete roof, on concrete slab.

Gauging Stations: Rio Grande City, Roma, Chapeno, Laredo

1994 Block walls, metal roof

Storage Sheds and containers 2004 Metal construction, some have wood floors

3.0 Background

3.1 ACM Categories

The Occupational Safety and Health Administration (OSHA) and the Environmental Protection Agency (EPA) define an asbestos-containing material (ACM) as any material containing more than one percent (>1.0%) asbestos by weight. In addition, ACM are designated by the EPA into one of three characteristic categories as follows:

Friable asbestos - material which can be crumbled, pulverized or reduced to powder by hand pressure, a.k.a. Regulated Asbestos Containing Materials (RACM)

Category I Non-friable - includes resilient floor coverings, asphalt roofing products, gaskets and packing. These materials may become friable if degraded or damaged to the point where the material can be crumbled, pulverized or reduced to powder by hand pressure.

Category II Non-friable - any non-friable ACM that is not in Category I (i.e. Asbestos-cement (Transite®) siding or roofing mastics).

Limited Asbestos and Lead-Based Paint Survey Page 3

3.2 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.

4.0 Asbestos Findings

Suspect Asbestos-Containing Materials (ACM), including interior and exterior building materials/finishes were inspected, sampled and analyzed for asbestos. Typical suspect building materials include finishes (e.g. drywall systems, suspended ceiling panels, glued ceiling tiles, floor tiles, vinyl sheet flooring, floor finish adhesives, cove base, cove base adhesive, textured coatings, roofing materials, caulks, sealants, and plasters). Non-suspect asbestos materials are items purely composed of glass, metal, concrete, rubber, brick, ceramic, grouts, fiberglass, foam, Styrofoam, and paper.

According to federal regulations, regulated ACMs are ACMs containing greater than 1% asbestos.

4.1 Asbestos Containing Materials – Positive (>1%) – TRC Survey November, 2013

Asbestos was either detected in concentrations exceeding one percent in the following materials sampled during the asbestos survey or the listed component/materials was presumed to have asbestos, based on limitations of sampling feasibility. Results of the asbestos survey indicated the presence of detectable asbestos in the following materials:

Limited Asbestos and Lead-Based Paint Survey Page 4

Water Treatment Plant

Material Location Percentage /Type

Approx.

Quantity*

NESHAP

Category

Condition

Black Penetration Mastic

Roof Curbs and Parapets

10% Chrysotile

90 SF Cat II Good

Large Warehouse

/Type

Approx.

Quantity*

NESHAP

Category

Condition

White Window Glazing

Throughout Windows

3%

1,050 LF Cat I Good

Building J – Recreational Hall / Meeting Room

/Type

Approx.

Quantity*

NESHAP

Category

Condition

9” x 9” Beige Vinyl Floor Tile

Hallway and Kitchen

5% Chrysotile

441 SF Cat I Good

Brown Exterior Door Caulking

Doorways 5% Chrysotile

50 LF Cat I Good

Gray Exterior Window Caulking

Windows 5% Chrysotile

250 LF Cat I Damaged

White Opening Caulking

Entry Door Opening in Brick

3%

20 LF Cat I Good

Mechanic Shop

/Type

Approx.

Quantity*

NESHAP

Category

Condition

White Window Glazing Putty

Exterior Windows 3% Chrysotile

420 LF Cat I Good

Gray Caulk Exterior Window Frames

20% Chrysotile

140 LF Cat I Good

Built Up Gravel Roof, Felt Layers

Mechanic Shop Roof and Attached

Carport

5%

8,100 SF Cat I Good

Warehouse Storage

/Type

Approx.

Quantity*

NESHAP

Category

Condition

Black Floor Tile Mastic

Center Office 3% Chrysotile

320 SF Cat I Good

Gray and White Window Glazing

Exterior Windows

3% Chrysotile

400 LF Cat I Damaged

Black Roof Mastic Roof Penetrations

10% Chrysotile

60 SF Cat I Good

Glue Associated with 12” x 12” White

Ceiling Tiles

Center Office, West Side of

Building

Assumed 320 SF Cat I Good

Limited Asbestos and Lead-Based Paint Survey Page 5

Power Plant/Dam

/Type

Approx.

Quantity*

NESHAP

Category

Condition

Corrugated Asbestos Cement

Board

Outdoor Storage Shed Roof &

Outdoor Break Tables Patio Roof

Assumed

ACM

850 SF Cat II Good

*Estimated quantities of ACMs listed in the tables above are provided as a guide to the building owner. The material quantities listed in the table are approximations and TRC is not responsible for the accuracy of the quantities and measurements provided.

4.2 Assumed Asbestos Containing Materials – TRC Survey November, 2013

The site has 35 residential structures in the residence village and of the residences, six randomly selected structures were surveyed and sampled by VIVA Environmental. The results of the sampling indicated similar findings for each residence in terms of types of ACMs and their locations. Based on findings observed in the residential village structures, the following assumed asbestos containing materials were observed by TRC at the site:

Residential Housing (1,890 SF Layout)

/Type

Approx.

Quantity*

NESHAP

Category

Condition

Floor Tile and Black Mastic (All Floor Areas)

Residences:

C101, F401, F402, F408, G502, H501, H503, H505, I401, I403, I405, I407, C102, C104, C106, & L101

Assumed

ACM

1,500 SF

Per

Residence Cat I Good

Sheetrock Joint Compound and Texture (Interior Walls and Ceilings)

Assumed

ACM

8,500 SF

Per

Residence RACM Good

Caulking (Interior Doors)

Assumed

ACM

200 LF Per Residence

Cat II Good

Caulking (Interior Windows)

Assumed

ACM

200 LF Per Residence

Cat II Good

Plaster (Exterior Walls)

Assumed

ACM

4,000 SF

Per

Residence RACM Good

Residential Housing (2,100 SF Layout)

/Type

Approx.

Quantity*

NESHAP

Category

Condition

Floor Tile and Black Mastic (All Floor Areas)

Residences:

C107, D208, G507

Assumed

ACM

1,200 SF

Per

Residence Cat I Good

Sheetrock Joint Compound and Texture (Interior Walls and Ceilings)

Assumed

ACM

8,500 SF

Per

Limited Asbestos and Lead-Based Paint Survey Page 6

Residential Housing (2,100 SF Layout)

/Type

Approx.

Quantity*

NESHAP

Category

Condition

Caulking (Interior Doors & Windows)

Assumed

ACM

350 LF Per Residence

Cat II Good

Plaster (Exterior Walls) Assumed

ACM

4,000 SF

Per

Residential Housing (1,530 SF Layout)

/Type

Approx.

Quantity*

NESHAP

Category

Condition

Floor Tile and Black Mastic (All Floor Areas)

Residences:

C103, C105, D203, D205, F403, F406, G503, G504, G505

Assumed

ACM

1,800 SF

Per

Residence Cat I Good

Sheetrock Joint Compound and Texture (Interior Walls and Ceilings)

Assumed

ACM

6,000 SF

Per

Residence RACM Good

Caulking (Interior Doors & Windows)

Assumed

ACM

350 LF Per Residence

Cat II Good

Plaster (Exterior Walls) Assumed

ACM

4,000 SF

Per

Residence RACM Good

*Quantities were documented by VIVA Environmental and observed by TRC.

4.3 Previously Identified Asbestos Containing Materials – Positive (>1%)

Asbestos was detected in concentrations exceeding one percent in the following materials sampled during previous asbestos surveys:

VIVA Environmental, Inc. Inspection Report – December 17, 2004

Project Office (Building A)

Material Location Percentage/Type Approx.

Quantity*

NESHAP

Category

Condition

12” x 12” White with Streaks

Tile (Top Layer)

Throughout Except

Restrooms and Storage Room

3% Chrysotile 2,400 SF Cat I Good

9” x 9” Floor Tile (Bottom Layer) and

Black Mastic

Throughout Except

Restrooms and Storage Room

5% Chrysotile 2,400 SF Cat I Good

Glazing Exterior Windows

2% Chrysotile 330 LF RACM Significantly Damaged

Caulking Exterior Windows

3% Chrysotile 109 LF RACM Good

Limited Asbestos and Lead-Based Paint Survey Page 7

Hydro Office (Building B)

/Type

Approx.

Quantity*

NESHAP

Category

Condition

Black Mastic Under Carpet 3% Chrysotile

1,100 SF Cat I Good

9” x 9” Green Floor Tile and Black Mastic

B3 through B5 and Hall Closet

5% Chrysotile (Tile), 3% Chrysotile (Mastic)

650 SF Cat I Good

Sheetrock Joint Compound and

Texture

Interior Walls and Ceilings

2% Chrysotile

(Joint Compound)

4,500 SF RACM Good

Residential B-3 (Building C)

/Type

Approx.

Quantity*

NESHAP

Category

Condition

9” x 9” Beige Floor Tile and Black Mastic

Throughout Except Restrooms

10% Chrysotile

1,200 SF Cat I Good

Sheetrock Joint Compound and

Texture

Interior Walls and Ceilings Except Restroom Walls

2% Chrysotile

(Joint Compound)

8,500 SF RACM Good

Caulking Interior Door 2%

350 SF Cat II Good

Residential 201 (Building D)

/Type

Approx.

Quantity*

NESHAP

Category

Condition

Black Mastic Throughout Floors 2% Chrysotile

1,750 SF Cat I Good

Sheetrock Joint Compound and

Texture

Throughout Interior Walls and

Ceiling

2% Chrysotile

(Joint Compound and Texture)

10,000 SF RACM Good

Residential 407 (Building E)

/Type

Approx.

Quantity*

NESHAP

Category

Condition

9” x 9” Floor Tile and Black Mastic

Throughout 5%

1,600 SF Cat I Good

Limited Asbestos and Lead-Based Paint Survey Page 8

/Type

Approx.

Quantity*

NESHAP

Category

Condition

Sheetrock Joint Compound and

Texture

Interior Wall Partitions

2% Chrysotile

(Joint Compound and Texture)

10,000 SF RACM Good

Caulking Interior Doors 2% Chrysotile

500 LF Cat II Good

Caulking Interior Windows 2% Chrysotile

250 LF Cat II Good

Plaster Exterior Walls Beneath Siding

Material

2% Chrysotile

4,000 SF RACM Localized Damaged

Residential 501 (Building F)

/Type

Approx.

Quantity*

NESHAP

Category

Condition

9” x 9” Floor Tile and Black Mastic

Throughout 2% Chrysotile (Tile), 5% Chrysotile (Mastic)

1,500 SF Cat I Good

Sheetrock Joint Compound and

Texture

Interior Walls and Ceilings

3% Chrysotile

(Joint Compound and Texture)

8,500 SF RACM Good

Caulking Interior Doors 2% Chrysotile

400 LF Cat II Good

Caulking Interior Windows 2% Chrysotile

200 LF Cat II Good

Plaster Exterior Walls Beneath Siding

Material

2%

4,000 SF RACM Good

Residential 405 (Building G)

/Type

Approx.

Quantity*

NESHAP

Category

Condition

9” x 9” Floor Tile and Black Mastic

Throughout 5% Chrysotile

1,800 SF Cat I Good

Sheetrock Joint Compound and

Texture

Interior Wall Partitions

3% Chrysotile

(Joint Compound and Texture)

6,000 SF RACM Good

Limited Asbestos and Lead-Based Paint Survey Page 9

/Type

Approx.

Quantity*

NESHAP

Category

Condition

Caulking Interior Doors 2% Chrysotile

350 LF Cat II Good

Plaster Exterior Walls Beneath Siding

Material

<1%

4,000 SF RACM Good

Residential 207 (Building H)

/Type

Approx.

Quantity*

NESHAP

Category

Condition

12” x 12” Floor Tile / Black and

Yellow

Throughout 5% Chrysotile

(Black Mastic)

1,500 SF Cat I Good

Sheetrock Joint Compound and

Texture

Interior Walls and Ceilings

2% Chrysotile

(Joint Compound and Texture)

8,500 SF RACM Good

Plaster Exterior Walls Beneath Siding

2% Chrysotile

4,000 SF RACM Localized

Water Plant (Building 1)

Material Location Percentage/Type Approx.

Quantity*

NESHAP

Category

Condition

Window Glazing

Throughout Building

2% Chrysotile 1,200 LF RACM Significantly

Power Plant (Building J)

/Type

Approx.

Quantity*

NESHAP

Category

Condition

Caulking Floor Expansion Joints

5% Chrysotile

1,500 LF RACM Damaged

Caulking Exterior Doors 5% Chrysotile

50 LF Cat II Good

Caulking Wall Expansion Joints

5% Chrysotile

1,600 LF Cat II Good

Caulking Interior Doors 5% Chrysotile

600 LF Cat II Good

Caulking Control Room Front Panels

5% Chrysotile

1,600 LF Cat II Good

Transite (Cement Board)

Electric Raceway Covers

20%

2,500 SF Cat II Good

Limited Asbestos and Lead-Based Paint Survey Page 10

4.4 Negative Materials – No Asbestos Detected – TRC Survey November, 2013

Samples of the following suspect materials were collected in the locations noted below and were reported with no detectable asbestos, as indicated by laboratory PLM analysis:

Water Treatment Plant

Material Location(s) Cement Wall Panels with White Finish Coat Main Building Walls – Upper Level

Stair Tread and Yellow Glue West End of Building on Stairs 2” Black Cove Base with Yellow Glue Office / Lab Counter Base

Black Built-Up Roof / Gravel with Felt Roof

Weather Strip Cloth Sliding Doors

Metal Shed Under Water Tower (Water Meter)

Light Gray Exterior Caulk North Wall

Radio Room

12” x 12” White with Gray Specks Floor Tile and Yellow Glue Radio Room

4” Gray Cove Base and Tan Glue Radio Room Black / Dark Brown Exterior Caulk Sealant Exterior Wall Vents

White Interior Silicone Sealant Interior Wall Partitions

Building J – Recreational Hall / Meeting Room

Dark Yellow Mastic

(Note Associated 9” x 9” Beige Tile is Positive)

Hallway and Kitchen

Plaster Men and Women Restroom Walls 9” x 9” Tan Vinyl Floor Tile and Dark Yellow

Mastic Office Room

Sheetrock Kitchen Walls and Ceilings 1’ x 1’ Ceiling Tile, Fissured and Pinhole Recreational Room and Hallway

Black / White Roofing Shingles Roof

Interior Plaster Walls Tool Room, Restroom, and Office

12” x 12” Light Tan Floor Tile and Yellow Mastic

Office

White Window Frame Caulking Interior Window Frames

Limited Asbestos and Lead-Based Paint Survey Page 11

Warehouse Storage

Insulation Tar Paper Backing Interior Roof and Walls on Batt Insulation

Gray Window Glazing Interior Side Windows Gray Cement Wall Panels Warehouse Shop Conference Room

12” x 12” Light Tan Floor Tile and Glue (Top Layer)

Center Office

12” x 12” White Ceiling Tiles Center Office, West Side of Building

4.5 Previously Identified Negative Materials – No Asbestos Detected

The following suspect materials were sampled in the locations noted below during previous asbestos inspections (Viva Environmental) and were reported with no detectable asbestos:

VIVA Environmental, Inc. Inspection Report – December 17, 2004

Material Sample Locations Plaster Interior Walls

1’ x 1’ Ceiling Tile (Holes) Bathroom and Storage Rooms 1’ x 1’ Ceiling Tile (Pinholes) Throughout Interior

Caulking Bathroom Walls Caulking Interior Door Jambs Caulking Interior Windows Caulking Exterior Door

Brown Insulation Above Ceiling

Plaster Perimeter Walls

Blown Insulation Above Ceiling

Residential (Building C)

Caulking Walls Plaster Interior Perimeter Walls and Restroom Walls

Caulking Kitchen Countertop Caulking Interior Windows Plaster Exterior

White Blown-In Insulation Above Ceiling

Caulking Interior Windows Plaster Bathroom Walls

Caulking Interior Windows Sink Coating Kitchen

Caulking Interior Door

Limited Asbestos and Lead-Based Paint Survey Page 12

Plaster Interior Perimeter and Restroom Wall

Caulking Interior Walls

Caulking Exterior Window Siding

Residential 501 (Building F)

Caulking Interior Walls Plaster Interior Perimeter and Restroom Wall

Sink Coating Kitchen

Plaster Interior Perimeter and Restroom Wall

Caulking Interior Walls Caulking Interior Windows

Blown Insulation Above Ceiling Plaster Exterior Walls

Residential 207 (Building H)

Plaster Interior Perimeter and Restroom Wall

Caulking Interior Walls Sink Coating Kitchen

Caulking Interior Windows Caulking Interior Doors

Water Plant (Building I)

Plaster Interior Walls

Caulking A/C Window Units Caulking Exterior Door

Caulking Exterior Windows

Limited Asbestos and Lead-Based Paint Survey Page 13

Plaster Storage Walls

12” x 12” Brown Floor Tile and Cream Mastic Control Room and Office

Dam (Building K)

Caulking Exterior Doors Levels 4 and 5 Caulking Interior Doors Levels 4 and 5

5.0 Asbestos Recommendations

Results of bulk sample analysis confirmed that asbestos was identified in regulated concentrations within some of the building materials sampled at the site. The ACM was found to be in significantly damaged to good condition at the time of the inspection. The significantly damaged (exterior window glazing) or damaged (wall plaster) ACM which was encountered, should be repaired, encapsulated, or removed as soon as feasible. Access to the significant damaged and damaged ACM by building occupants should be restricted in the areas of damage until abatement response actions can be completed. Such abatement methods should be performed by a qualified/licensed asbestos abatement contractor, and ACM should be handled, stored, and disposed of according to all local, state, and federal regulations.

Persons performing construction or maintenance work at the Site should be aware of the types and locations of ACM and any additional materials (not identified in this report), which are either inaccessible or hidden, may exist at the Site. Care should be used when performing work that disturbs building materials. Any suspect asbestos containing materials uncovered during maintenance, renovation, or demolition 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.

6.0 Lead-Based Paint Inspection

TRC conducted a limited lead-based paint (LBP) inspection for the determination of LBP and/or lead-based components at the Power Plant and Warehouse building structures (the “Site”). The LBP inspection was conducted in accordance with the United States Housing and Urban Development (HUD) guidance document, entitled “Guidelines for the Evaluation and Control of Lead-Based Paint Hazards in Housing,” 1997 Revision.

The LBP inspection and testing performed by TRC was limited to building/structures built prior to 1979. For such structures, the general purpose of this investigation was to document the general condition of interior and exterior painted building surfaces, to characterize the composition of painted surfaces with regard to lead content, and to quantify areas/components to define the magnitude to which LBP is present, where encountered. Information derived from this investigation may be used to further refine the scope of LBP abatement activities in support of future procurement activities with regard to LBP. The scope of work associated with this investigation included the following elements:

Identify and focus efforts on buildings built prior to 1979;

Visual inspection of interior and exterior building painted surfaces and components;

Limited Asbestos and Lead-Based Paint Survey Page 14

Identify whether coated surfaces were previously sampled during previous survey inspections;

Field testing of painted surfaces and components (if not previously using an X-Ray Fluorescence (XRF) analyzer; and

Assess condition and quantities of LBP for reporting purposes

The lead based paint testing was conducted by Mr. Douglas Coburn, an EPA, Department of Housing and Urban Development (HUD) certified Lead-Based Paint Building Inspector/Risk Assessor. The inspection was conducted on November 13, 14, and 15, 2013.

6.1 Definition of Lead-Based Paint

The United States Department of Housing and Urban Development (HUD), and United States Environmental Protection Agency define lead-based paint as a paint or other surface coatings that contain an amount of lead equal to, or in excess of:

One milligram per square centimeter (1.0 mg/cm2); or One-half percent (0.5%) by weight.

6.2 Sampling and Analytical Procedures

All lead-based paint testing was performed using a RMD Model LPA-1B, X-ray Fluorescence (XRF) spectrum analyzer, serial #1124. Assessment activities and XRF testing were performed in accordance with the United States HUD guidance document, entitled “Guidelines for the Evaluation and Control of Lead-Based Paint Hazards in Housing,” 1997 Revision.

The RMD Model LPA-1B XRF uses a 12 millicurie Cobalt 57 sealed radioactive source which has a half-life of 18 months. The XRF measures the L & K electron shell energy released by the excited atoms of the test material such as the painted and/or coated surface location to calculate the concentrations of a specific metal on the surface coating down to the substrate. The RMD Model LPA-1B XRF does not have an inconclusive range such as the older generation XRF machines.

At the beginning and end of each work day and at various times during the day, the XRF was calibrated in order to ensure that the instrument was functioning properly. A series of three calibrated readings were obtained using a 1.04 mg/cm2 NIST Paint Film Standard in accordance with the instrument manufacturer’s protocol. In all cases, the instrument was functioning within the standard deviation as defined by the manufacturer and the Performance Characteristic Sheets. All validation readings were recorded in a logbook, which accompanies the instrument. A total of twelve (12) calibration tests were performed during the course of this investigation.

During this investigation, a total of ninety-two (92) painted or coated substrate measurements were obtained using the XRF. The XRF field test data sheets with the results of the paint test measurements are presented in Appendix B – Lead-Based Paint XRF Field Data Sheets.

Limited Asbestos and Lead-Based Paint Survey Page 15

7.0 Summary of Lead-Based Paint Testing Results

7.1 LBP – Positive (≥1.0 mg/cm2) – TRC Survey November, 2013

The XRF test results indicate that select painted surfaces and building components were found to contain lead above the United States Department of Housing and Urban Development, and United States Environmental Protection Agency definition of lead-based paint. A summary of paints/coatings determined to be LBP by XRF analysis is provided below. Note: Only paints identified as LBP (≥1.0 mg/cm2) by XRF are listed below. Paints that were not identified as LBP by XRF are not included in the table below, however a complete listing of components tested may be referenced in Appendix B.

Component(s) Color Location(s) Lead XRF

Result (mg/cm²)

Approx.

Quantity

Paint Condition

Brick and Plaster Walls

White / Blue

Interior 11.8 2,880 SF Intact – Fair

Wood Door White Interior 6.1 12 SF Fair

Wood Door White Interior – Tool

Room

8.7 12 SF Intact

Parking Cover

Lead XRF

Result (mg/cm²)

Approx.

Quantity

Paint Condition

Wood Rafter White Ceiling 5.0 4,000 SF Fair Wood Eave White Ceiling 4.2 1,300 SF Fair

Carport / Warehouse

Lead XRF

Result (mg/cm²)

Approx.

Quantity

Paint Condition

Wood Wall White Restroom 2.6 80 SF Intact Ceramic Baseboard Orange Restroom 4.6 26 SF Intact

Fuel Station

Lead XRF

Result (mg/cm²)

Approx.

Quantity

Paint Condition

Metal Bollard Red Maintenance Yard 1.4 6 posts Intact

Lead XRF

Result (mg/cm²)

Approx.

Quantity

Paint Condition

Metal Wall Silver Interior 1.1 12,000 SF Fair Metal Beam Crane Yellow Shop area 3.0 30 SF Intact

Metal Wall Silver Exterior 2.1 12,000 SF Fair Metal Door Silver Entry 1.2 18 SF Intact

Limited Asbestos and Lead-Based Paint Survey Page 16

Roof Water Treatment

Lead XRF

Result (mg/cm²)

Approx.

Quantity

Paint Condition

Metal Stair Rail Yellow Downstairs 4.4 16 SF Intact Metal Surge Tank Yellow Ground Level 2.1 600 SF Intact

Metal Tank 1 Yellow Ground Level 1.4 600 SF Intact Metal Step Access Red Exterior 1.3 18 SF Intact

Building J – Recreational Hall

Lead XRF

Result (mg/cm²)

Approx.

Quantity

Paint Condition

Ceramic Cove Base Yellow Restrooms 9.9 24 SF Intact Ceramic Walls White Restrooms 9.9 80 SF Intact

7.2 Previously Identified LBP – Positive (≥1.0 mg/cm2)

VIVA Environmental, Inc., Inspection Report – December 17, 2004

Component(s) Color Location(s)* Lead XRF

Result (mg/cm²)

Approx.

Quantity

Paint Condition

Wood Cabinet White Area 5 1.22 80 SF Fair Wood Cabinet Green Area 8 4.43 80 SF Fair Wood Porch Beige Porch 12 14.08 65 SF Fair Wood Roof White Area 12 10.61 1, 240 SF Fair

*note areas may be referenced on VIVA Environmental drawings

Lead XRF

Result (mg/cm²)

Approx.

Quantity

Paint Condition

Metal Door White Area 1 5.1 18 SF Fair Metal Door White Area 11 4.3 18 SF Fair

Village House B3 (Building C)

Lead XRF

Result (mg/cm²)

Approx.

Quantity

Paint Condition

Metal Door Brown Area 1 5.1 18 SF Fair Wood Door Brown Area 12 2.47 18 SF Fair Metal Door Brown Area 12 2.34 18 SF Fair

Metal Flashing White Area 12 2.53 88 LF Poor Wood Door Brown Area 2.75 18 SF Fair

Limited Asbestos and Lead-Based Paint Survey Page 17

Village House 201 (Building D)

Lead XRF

Result (mg/cm²)

Approx.

Quantity

Paint Condition

Wood Door White Area 8 5.1 18 SF Fair Wood Door White Area 11 5.1 18 SF Fair Metal Door White Area 11 3.19 18 SF Fair

Metal Gutter Beige Area 12 2.82 70 SF Poor

Village Housing 501 (Building F)

Lead XRF

Result (mg/cm²)

Approx.

Quantity

Paint Condition

Metal Door Brown Area 11 1.01 18 SF Fair Metal Gutter Brown Area 100 1.08 70 SF Fair

Metal Flashing White Area 100 1.05 88 LF Fair

Village Housing 405 (Building G)

Lead XRF

Result (mg/cm²)

Approx.

Quantity

Paint Condition

Metal Door Brown Area 1 5.1 18 SF Fair Wood Door White Area 2 5.1 18 SF Fair Metal Door Brown Area 2 5.1 18 SF Fair Wood Door Brown Area 2 4.86 18 SF Fair Metal Door Brown Area 7 5.1 18 SF Fair

Village Housing 207 (Building H)

Lead XRF

Result (mg/cm²)

Approx.

Quantity

Paint

Metal Flashing White Area 11 2.71 88 LF Fair

Water Plant (Building I)

Lead XRF

Result (mg/cm²)

Approx.

Quantity

Paint Condition

Concrete Floor Yellow Area 11 5.1 80 LF Fair Metal Handrail Brown Area 40 3.03 60 SF Fair

Metal Steps Orange Area 5 1.53 200 SF Fair Metal Accelerator Brown Area 5 2.25 600 SF Fair Metal Surge Tank Brown Area 5 2.42 600 SF Fair Metal Tank Filter Brown Area 5 2.61 600 SF Fair

Metal Piping Brown Area 5 5.1 900 SF Fair Wood Stair Handrail Gray Area 5 2.67 30 SF Fair Metal Stair Handrail Brown Area 5 5.1 50 SF Fair

Metal Catwalk Brown Area 5 6.45 200 SF Fair Metal Pipe Silver Area 70 2.35 220 SF Fair

Limited Asbestos and Lead-Based Paint Survey Page 18

Lead XRF

Result (mg/cm²)

Approx.

Quantity

Paint Condition

Metal Door Gray Area 1 3.46 18 SF Fair Metal Door Green Area 2 4.26 18 SF Fair Metal Door Gray Area 2 1.86 18 SF Fair Metal Door Gray Area 4 3.54 18 SF Fair Metal Door Gray Area 5 2.11 18 SF Fair

Metal Handrail Yellow Area 6 5.1 60 SF Fair Metal Door White Area 7 4.78 18 SF Fair Metal Door White Area 8 5.1 18 SF Fair

Metal Handrail Yellow Area 10 5.1 30 SF Fair Metal Handrail Yellow Area 11 3.24 28 SF Fair Metal Ladder Gray Area 11 5.1 24 SF Fair

Metal Handrail Yellow Area 11 5.1 30 SF Fair Metal Crane Yellow Area 11 2.49 240 SF Fair Metal Deck Gray Area 11 5.1 400 SF Fair

Metal Generator Housing

Green Area 11 1.68 400 SF Fair

Metal Stairs Green Area 11 1.74 1,000 SF Fair Metal Handrail Yellow Area 11 1.65 40 SF Fair

Metal Door Jamb Gray Area 11 5.1 18 SF Fair Metal Pipe Gray Area 11 2.31 70 SF Fair

Metal Door Frame Green Area 11 5.1 18 SF Fair Metal Generator

Handrail Yellow Area 11 5.1 34 SF Fair

Metal Electric Handrail

Gray Area 11 5.1 50 SF Fair

Metal Door Casing Gray Area 11 3.42 18 SF Fair Metal Ladder Gray Area 11 1.71 34 SF Fair Metal Hoist Green Area 11 4.25 30 SF Fair

Wood Cabinet Green Area 11 1.65 40 SF Fair Metal Door Gray Area 11 5.1 18 SF Fair Metal Steps Gray Area 11 2.25 200 SF Fair

Metal Pipe Support Gray Area 11 2.88 30 SF Fair Metal Door Gray Area 11 5.1 38 SF Fair

Metal Floor Access Cover

Green Area 11 1.03 40 SF Fair

Wood Door Gray Area 11 5.1 28 SF Fair Metal Pipe Silver Area 11 5.1 40 SF Fair Metal Rail Silver Area 11 31.8 30 SF Fair

Metal Window Frame Gray Area 11 5.1 50 SF Fair

Lead XRF

Result (mg/cm²)

Approx.

Quantity

Paint Condition

Metal Handrail Gray Level 4 5.1 300 SF Fair Metal Stairs Gray Level 4 5.1 1,200 SF Fair

Limited Asbestos and Lead-Based Paint Survey Page 19

Lead XRF

Result (mg/cm²)

Approx.

Quantity

Paint Condition

Metal Stairs Gray Level 5 1.79 -- Fair Metal Ladder Yellow Level 5 5.1 40 SF Fair Metal Floor Gray Level 5 5.1 300 SF Fair Metal Plate Gray Level 5 5.1 50 SF Fair

Metal Floor Access Cover

Gray Level 5 3.49 100 SF Fair

Metal Electric Frame Silver Level 5 2.99 30 SF Fair Metal Electric Panel Silver Level 5 2.72 50 SF Fair

Metal Motor Base Silver Level 5 5.1 40 SF Fair Metal Cable Red Level 3 1.15 80 LF Fair Metal Floor Gray Level 3 1.29 300 SF Fair

Metal Electric Panel Gray Level 3 2.54 50 SF Fair Metal Wall Panel Gray Level 3 3.19 50 SF Fair

Metal Sump Pump Gray Level 3 26.85 24 SF Fair Metal Tank Yellow Level 2 2.94 80 SF Fair Metal Crane Red Road Level 1.86 60 SF Fair

Metal Floor Access Beige Road Level 5.1 100 SF Fair Metal Fence Silver Road Level 2.66 750 SF Fair

Metal Handrail Silver Road Level 5.1 40 SF Fair

8.0 Lead-Based Paint Recommendations

Disturbance of lead based paint should be performed by a contractor who has experience and expertise in LBP, abatement, handling and disposal and who can protect the employees of IBWC Falcon Dam Facility, and the environment from lead exposure hazards. For construction work where an employee may be occupationally exposed to lead in any amount, the workers and contractor must comply with Federal Occupational Safety and Health (OSHA) worker lead exposure regulations 29 CFR 1910.1025 and 1926.62 (lead in construction). Additionally, lead containing waste must be characterized and profiled for proper disposal according to applicable federal State and local regulations.

TRC recommends that interior and exterior painted surfaces containing lead at concentrations greater than or equal to 1.0 mg/cm2 and that are in poor condition be abated and/or stabilized.

Based on the results of this assessment, the following materials meet the criteria for abatement and/or stabilization:

Village House B3 (Building C)

Lead XRF

Result (mg/cm²)

Approx.

Quantity

Paint

Metal Flashing White Area 12 2.53 120 LF Poor

Limited Asbestos and Lead-Based Paint Survey Page 20

Village House 201 (Building D)

Lead XRF

Result (mg/cm²)

Approx.

Quantity

Paint Condition

Metal Gutter Beige Area 12 2.82 50 SF Poor

8.1 Lead-Based Paint General Recommendations

Lead is a hazardous substance and its condition, handling and disposal are regulated by Federal, State and local agencies. Lead-containing materials, Lead-based paint, and Lead-Containing Paint generally do not pose a health risk unless the material is disturbed or sufficiently deteriorated to produce dust, which may become airborne and inhaled or ingested. Future site maintenance activities, including surface preparation and painting, may involve practices that could disturb lead-containing materials. The following paragraphs provide a general overview of applicable regulatory standards that relate to the management and/or disposal of lead-based paint:

The Federal Occupational Safety and Health (OSHA) 29 CFR 1910.1025 and 1926.62 (lead in construction) do not provide a definition for “lead-based paint”. Rather, the Lead Construction Standard provides a Permissible Exposure Limit (PEL) for worker exposure to airborne lead particles of 50 micrograms per cubic meter of air (50 µg/m3 for an 8-hour time-weighted average). All employees (workers) and supervisors, who are engaged in lead-related construction activities and shown to be exposed to lead at or above the Permissible Exposure Limit, shall be trained by state-accredited training providers and certified by the Environmental Protection Agency. The OSHA Lead in Construction Standard states that “negative” readings i.e. those below the HUD/EPA definition of what constitutes LBP (1.0 mg/cm2), “DO NOT” relieve contractors from performing exposure assessments (personal exposure monitoring) on their employees per the OSHA Lead Standard, and should not be interpreted as lead is not present.

Although a reading may indicate “negative” result or lead concentration, concentrations of airborne lead may still exceed the OSHA Action Level or the OSHA Permissible Exposure Limit (PEL) depending on the work activity.

Future site maintenance activities, including repair, surface preparation and painting, sand/shot blasting, and sanding, in areas where lead-based paint has been identified may result in the liberation of lead at concentrations in excess of the OSHA PEL. TRC recommends the removal and/or stabilization of building materials during planned renovation. Lead-based painted materials should only be removed, handled or stabilized by lead trained personnel in accordance with all applicable federal, state, and local regulations. These requirements include, but are not limited to, the following: Exposure Assessments; Methods of Compliance including work practices, administrative, and engineering controls; Respiratory Protection; Protective Clothing and Equipment;

Housekeeping; Hygiene Facilities; Medical Surveillance; and Employee Information and Training. The waste materials generated must be segregated accordingly and must be subjected to waste characterization testing and disposed of according to applicable regulations.

Lead containing waste must be disposed of in accordance with all applicable federal, state, county or local regulations and guidelines. It is the sole responsibility of the Contractor to assure compliance with all laws and regulations relating to the disposal.

The abatement contractor should comply with the requirements of the Resource

Limited Asbestos and Lead-Based Paint Survey Page 21

Conservation and Recovery Act (RCRA). Waste materials shall be segregated into separate waste streams (i.e. paint chips, personal protective equipment, plastic, etc.) and placed into labeled, leak-tight containers. Wastewater from the washing facilities should be captured, filtered, and sampled for lead content prior to disposal into the sanitary sewer system. Additional details regarding waste characterization sampling and analysis are provided in the following section.

9.0 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.

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

10.0 SIGNATORY

This asbestos and lead-based paint survey activities and report of the findings were provided by TRC, was conducted by a licensed professional, experienced in the inspection and survey for asbestos containing materials and lead-based paint in building structures and associated components thereof. If there are any questions concerning information contained in this report, you may contact Doug Coburn at 949.727.9336.

Sincerely, TRC Environmental Corporation

K. Heath Howard Douglas W. Coburn, CAC, REA Industrial Hygienist Senior Project Manager TX DSHS Asbestos Consultant #105708

Limited Asbestos and Lead-Based Paint Survey Page 22

10.0 TABLES

TABLES – HOMOGENOUS MATERIALS SUMMARY

International Boundary & Water Commission – Falcon – Falcon Heights, TX

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

Quantity

NESHAP

Category

Water Treatment Plant

FAL-WTP-01

through

FAL-WTP-03

Cement Board Wall Panels, White Finish

Main Building Walls – Upper Level ND 3,000 SF NA

Water Treatment Plant

FAL-WTP-07

through

FAL-WTP-09

Yellow Stair Tread West End of Building on

Stairs ND 170 SF NA

Water Treatment Plant

FAL-WTP-10

through

FAL-WTP-12

2” Black Cove Base with Yellow Mastic

Office / Lab Counter Base ND 18 LF NA

Water Treatment Plant

FAL-WTP-13

through

FAL-WTP-15

Black Built Up Roof / Gravel with Felt Roof ND 1,440 SF NA

Water Treatment Plant

FAL-WTP-16

through

FAL-WTP-18

Black Penetration Mastic Roof Curbs and Parapets 10% Chrysotile 90 SF Cat II

NESHAP

Category

Large Warehouse

FAL-MWH-01

through

FAL-MWH-03

White Window Glazing Throughout Windows 3% Chrysotile 1,050 LF Cat I

Large Warehouse

FAL-MWH-01

through

FAL-MWH-03

Weather Strip Cloth Sliding Doors ND 90 LF NA

NESHAP

Category

Metal Shed Under Water Tower (Water Meter)

FAL-MET-01

through

FAL-MET-03

Light Gray Exterior Caulk North Wall ND 30 LF NA

NESHAP

Category

Radio Room

FAL-RAD-01

Through

FAL-RAD-03

12” x 12” White with Gray Specks Floor Tile and

Yellow Glue Radio Room ND 110 SF NA

Radio Room

FAL-RAD-04

Through

FAL-RAD-06

4” Gray Cove Base and Tan Glue Radio Room ND 50 LF NA

Radio Room

FAL-RAD-07

Through

FAL-RAD-09

Black/Dark Brown Exterior Caulk Sealant Exterior Wall Vents ND 36 LF NA

Radio Room

FAL-RAD-10

Through

FAL-RAD-12

White Interior Silicone Sealant

Interior Wall Penetrations ND 30 LF NA

NESHAP

Category

Building J – Recreation Hall / Meeting Room

FAL-REC-01

Through

FAL-REC-03

9” x 9” Beige Vinyl Floor Tile and Mastic Hallway and Kitchen

Tile – 5% Chysotile

Mastic – ND 441 SF Cat I

Building J – Recreation Hall / Meeting Room

FAL-REC-04

Through

FAL-REC-06

White Plaster Walls Men and Women

Restrooms ND 1,800 SF NA

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

NESHAP

Category

Building J – Recreation Hall / Meeting Room

FAL-REC-07

Through

FAL-REC-09

9” x 9” Tan Vinyl Floor Tile and Mastic Office Room ND 441 SF NA

Building J – Recreation Hall / Meeting Room

FAL-REC-10

Through

FAL-REC-12

Sheetrock Kitchen Walls and

Ceiling ND 450 SF NA

Building J – Recreation Hall / Meeting Room

FAL-REC-13

Through

FAL-REC-15

1’ x 1’ Ceiling Tile, Fissured and Pinhole Rec Room and Hallway ND 1,450 SF NA

Building J – Recreation Hall / Meeting Room

FAL-REC-16

Through

FAL-REC-18

Brown Exterior Door Caulking Doorways 5% Chysotile 50 LF Cat I

Building J – Recreation Hall / Meeting Room

FAL-REC-19

Through

FAL-REC-21

Gray Exterior Window Caulking Windows 5% Chysotile 250 LF Cat I

Building J – Recreation Hall / Meeting Room

FAL-REC-22

Through

FAL-REC-24

White Opening Caulking at Entry Door Opening in Brick 3% Chysotile 20 LF Cat I

Building J – Recreation Hall / Meeting Room

FAL-REC-25

Through

FAL-REC-27

Black / White Roofing Shingles Roof ND 2,800 SF NA

NESHAP

Category

Mechanic Shop

FAL-MS-01

through

FAL-MS-03

Interior Plaster Walls Tool Room, Restroom, Office ND 2,200 SF NA

Mechanic Shop

FAL-MS-04

through

FAL-MS-06

12” x 12” Light Tan Floor Tile with Yellow Mastic Office ND 110 SF NA

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

NESHAP

Category

Mechanic Shop

FAL-MS-07

through

FAL-MS-09

White Window Frame Caulking Interior Window Frames ND 12 LF NA

Mechanic Shop

FAL-MS-10

through

FAL-MS-12

White Window Glazing Putty Exterior Windows 3% Chrysotile 420 LF Cat I

Mechanic Shop

FAL-MS-13

through

FAL-MS-15

Gray Caulk on Window Frames Exterior Window Frames 20% Chrysotile 140 LF Cat I

Mechanic Shop

FAL-MS-16

through

FAL-MS-18

Built Up Gravel Roof, Felt Layers

Mechanic Shop Roof and Attached Carport 5% Chrysotile 8,100 SF Cat I

NESHAP

Category

Warehouse Storage

FAL-WH-01

through

FAL-WH-03

Insulation Tar Paper Backing Interior Roof and Walls on Batt Insulation ND 13,000 SF NA

Warehouse Storage

FAL-WH-04

through

FAL-WH-06

Gray Window Glazing Interior Side Windows ND 300 LF NA

Warehouse Storage

FAL-WH-07

through

FAL-WH-09

Gray Cementitious Wall Panels

Warehouse Shop Conference Room ND 1,200 SF NA

Warehouse Storage

FAL-WH-10

through

FAL-WH-12

12” x 12” Light Tan Floor Tile and Glue (Top Layer) Center Office ND 320 SF NA

Warehouse Storage

FAL-WH-10

through

FAL-WH-12

Brown Floor Tile and Black Mastic (Bottom Layer) Center Office

Tile – ND Mastic – 3%

320 SF Cat I

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

NESHAP

Category

Warehouse Storage

FAL-WH-13

through

FAL-WH-15

12” x 12” White Ceiling Tiles

Center Office, West Side of Building ND 320 SF NA

Warehouse Storage

FAL-WH-16

through

FAL-WH-18

Gray and White Exteior Window Glazing Exterior Windows 3% Chrysotile 400 LF Cat I

Warehouse Storage

FAL-WH-19

through

FAL-WH-21

Black Roof Mastic Roof Penetrations 10% Chrysotile 60 SF Cat II

Warehouse Storage No Samples Glue associated with 12” x 12” White Ceiling Tiles

Center Office, West Side of Building Assumed ACM 320 SF Cat II

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)

Asbestos and Lead-Based Paint Survey Report IBWC Mercedes Field Office, Mercedes, TX April 9, 2014

Appendix A

Bulk Asbestos Sample Laboratory Analytical Report

And Chain of Custody

Industrial Hygiene Laboratory 21 Griffin Road North Windsor, CT 06095

(860) 298-6308

43216.IBWC.doc

Lab Log #: 0043216

Falcon Dam, Water Treatment, Falcon Heights, TX

CLIENT: International Boundary & Water Commission

Site:

Date Analyzed:

Date Received:

11/20/2013

11/19/2013

Project #: 209058.0003.0000

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

- - - None1FAL-WTP-01 NDNo YesWhite (finish coat)

- - - None2FAL-WTP-01 NDNo YesGrey (cement board)

- - - None1FAL-WTP-02 NDNo YesWhite (finish coat)

- - - None2FAL-WTP-02 NDNo YesGrey (cement board)

- - - None1FAL-WTP-03 NDNo YesWhite (finish coat)

- - - None2FAL-WTP-03 NDNo YesGrey (cement board)

- - - None1FAL-WTP-07 NDNo YesYellow (glue)

- - - None2FAL-WTP-07 NDNo YesGrey (stair tread)

- - - None1FAL-WTP-08 NDNo YesYellow (glue)

- - - None2FAL-WTP-08 NDNo YesGrey (stair tread)

- - - None1FAL-WTP-09 NDNo YesYellow (glue)

- - - None2FAL-WTP-09 NDNo YesGrey (stair tread)

- - - None1FAL-WTP-10 NDNo YesYellow (mastic)

- - - None2FAL-WTP-10 NDNo YesBlack (cove base)

- - - None1FAL-WTP-11 NDNo YesYellow (mastic)

- - - None2FAL-WTP-11 NDNo YesBlack (cove base)

- - - None1FAL-WTP-12 NDNo YesYellow (mastic)

- - - None2FAL-WTP-12 NDNo YesBlack (cove base) fibrous glass None1FAL-WTP-13 ND20%No YesBlack (felt) cellulose None2FAL-WTP-13 ND30%No YesBlack (roofing)

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

43216.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 None1FAL-WTP-14 ND20%No YesBlack (felt) cellulose None2FAL-WTP-14 ND30%No YesBlack (roofing) fibrous glass None1FAL-WTP-15 ND20%No YesBlack (felt) cellulose None2FAL-WTP-15 ND30%No YesBlack (roofing)

- - - Chrysotile- -FAL-WTP-16 10%Yes NoBlack

- - - -- -FAL-WTP-17 NA/PS- - - -- -

- - - -- -FAL-WTP-18 NA/PS- - - -- -

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:…