12_-Muskrat_Asbestos_Report_0001.pdf

ASBESTOS-CONTAINING MATERIAL (ACM) SURVEY AND

ABATEMENT COST ESTIMATE

BLM Task Order 135, BPA L09PA00228 (NAB060001 Legacy Number)

L2031 – Muskrat Springs Living Quarters

40.63777 / -112.68555

Salt Lake City Field Office, Utah

Report Date October 1, 2010 Site Survey Date August 11, 2010

ACM Identified in Building?* No ACM Abatement Cost Estimate* $0.00 *Subject to the assumptions and limitations as described in the following report.

Submitted by:

Aarcher, Inc.

910 Commerce Road Annapolis, Maryland 21401 410-897-9100 Program Manager: Mark R. Serio, P.G.

Submitted to:

U.S. Department of the Interior Bureau of Land Management Attn: Suzanne Buntrock, Engineer Building 50, Denver Federal Center Denver, Colorado 80225-0047

Tetra Tech

3801 Automation Way, Suite 100, Fort Collins, Colorado 80526

Tel 970.223.9600 Fax 970.223.7171 www.tetratech.com

October 1, 2010

Aarcher, Inc.

Mr. Mark Serio Vice President 910 Commerce Road Annapolis, Maryland 21401

RE: Asbestos-Containing Materials Survey and Asbestos Abatement Cost Estimates L2031 – Muskrat Springs Living Quarters Salt Lake Field Office, Utah Tetra Tech Project Number 114-182065, Task 100

Dear Mr. Serio:

Tetra Tech is pleased to submit the attached Asbestos-Containing Materials Survey and Asbestos Abatement Cost Estimates report for the above-referenced site. This report includes the scope of work, procedures and methodologies, tables, figures, analytical laboratory results, and abatement cost estimate for each asbestos-containing material identified during this survey.

Tetra Tech appreciates the opportunity to perform these services for Aarcher, Inc. (AARCHER) and we look forward to working with you in the future. If you have questions or comments regarding the information in this report or if we can be of further assistance please do not hesitate to contact the Tetra Tech Fort Collins, Colorado office at (970) 223-9600.

Sincerely, Tetra Tech

Ryan Egan Mark Daley AHERA & State of Utah AHERA & State of Utah Building Inspector/Management Planner Building Inspector Project Designer/Supervisor

Daniel Lawrence AHERA & State of Utah Building Inspector

L2031 – Muskrat Springs Living Quarters Salt Lake Field Office, Utah i

TABLE OF CONTENTS

1.0 PURPOSE AND SCOPE OF SERVICES

2.0 GENERAL SITE CONDITIONS

3.0 REGULATORY STANDARDS

4.0 ASBESTOS-CONTAINING MATERIALS SURVEY AND ASBESTOS ABATEMENT COST

ESTIMATES

4.1 Homogeneous Materials

4.2 Hazard Assessment Factors

4.3 Sampling Strategy

4.4 Suspect Asbestos-Containing Material

4.5 Laboratory Analytical Results

5.0 ASBESTOS-CONTAINING MATERIALS SURVEY AND ASBESTOS ABATEMENT COST

ESTIMATES SUMMARY TABLE

6.0 CONCLUSIONS

7.0 ASSUMPTIONS AND LIMITATIONS

LIST OF APPENDICES

Appendix A: ACM Laboratory Analytical Results Appendix B: Site Drawing Appendix C: Inspector and Laboratory Accreditations Appendix D: ACM Photographs

1.0 PURPOSE AND SCOPE OF SERVICES

The purpose of this project was to conduct an Asbestos-Containing Materials (ACM) survey and provide Asbestos Abatement Cost Estimates for identified ACM located in the L2031 – Muskrat Springs Living Quarters located at Salt Lake Field Office, Utah. Tetra Tech provided services as outlined below:

Conduct a representative asbestos survey of the identified building, which includes the following:

1. Review existing asbestos reports for the building areas, if provided;

2. Survey all of the interior and exterior areas of the building, including building roofs;

3. Identify accessible suspect ACMs using Environmental Protection Agency (EPA) Asbestos

Hazard Emergency Response Act (AHERA) protocols;

4. Collect and analyze bulk samples of suspect friable and non-friable materials to eliminate suspect materials as asbestos containing;

5. Quantify ACMs, including material condition and location; and

6. Provide ACM abatement cost estimates for ACM identified during the survey of the building.

2.0 GENERAL SITE CONDITIONS

The building is a one story, wood framed structure, situated on a walkout basement concrete foundation, covered by a metal roof. Reportedly, the building was constructed in 1998 and is approximately 7,375 gross square feet. Interior finishes include drywall, wood, concrete, and 12”x12” floor tile. The exterior finish consists of stucco.

3.0 REGULATORY STANDARDS

The survey was performed in accordance with Federal, State and local rules for conducting asbestos surveys to meet Occupational Safety and Health Administration (OSHA) and United States Environmental Protection Agency (EPA) / National Emission Standards for Hazardous Air Pollutants (NESHAP) requirements. The work was also performed in general accordance with AARCHER Subcontract Number 522-S004, dated May 27, 2010 and Task Orders 522- S004-001, dated June 1, 2010 and 522-S004-002, dated July 27, 2010.

Additionally, all work conducted within the State of Utah was conducted in accordance with Asbestos Certification, Asbestos Work Practices, and Implementation of Toxic Substances Control Act, Title II, Section R307-801, Utah Air Conservation Rules.

4.0 ASBESTOS-CONTAINING MATERIALS SURVEY AND ASBESTOS

ABATEMENT COST ESTIMATES

Tetra Tech representatives Mr. Ryan Egan, Mr. Daniel Lawrence, and/or Mr. Mark Daley conducted the asbestos survey of the building on August 11, 2010. Mr. Egan is an AHERA and State of Utah accredited Building Inspector, Management Planner, Project Designer and Supervisor (Certificate Number ASB-4437). Mr. Lawrence and Mr. Daley are AHERA and State of Utah accredited Building Inspectors (Certificate Numbers ASB-4457 and 4443, respectively).

Tetra Tech is a State of Utah certified Asbestos Company (certificate ASBC-358). All field work was performed by and/or under the guidance of Mr. Ryan Egan.

The scope of the Asbestos-Containing Materials Survey included all of the accessible suspect building materials and finishes of the interior and exterior areas of the building, including building roofs. If ACM was identified in the building, Asbestos Abatement Cost Estimates were provided for each identified material.

Previous ACM survey reports for the building were not made available for review.

The building areas were visually inspected for the presence of building materials that are suspected to contain asbestos. Bulk samples of identified suspect ACMs were collected and placed into individual containers for transport to a National Voluntary Laboratory Accreditation Program (NVLAP)/American Industrial Hygiene Association (AIHA)-accredited laboratory for analysis. Materials visibly identified as non-asbestos (fibrous glass, foam rubber, wood, metal, etc.) were not sampled. The asbestos survey consisted of three basic procedures: 1) conducting a visual inspection of the structure and identifying functional spaces; 2) identifying homogeneous material areas of suspect surfacing, thermal system insulation, and miscellaneous materials; and 3) sampling accessible, friable and non-friable suspect materials.

4.1 Homogeneous Materials

Prior to collecting any samples, homogenous materials were identified and listed to develop a sampling strategy. A homogeneous material sampling area can be described as one or more areas of material that are similar in appearance and texture and that have the same installation date and function. The actual number of samples collected from each homogeneous sampling area was based upon criteria detailed in the following sections.

4.2 Hazard Assessment Factors

From the list of suspect homogeneous materials, a physical assessment was performed for each material on the list. A physical assessment includes evaluating the condition, assessing the potential for disturbance, and determining the friability of each material. Friability is a term used to describe the ease in which a building material inherently lends itself to disturbance. By definition, "friable" materials are those that can be crumbled or reduced to powder by hand pressure when dry. Each material on the list was further classified into one of three categories, which have specific sampling requirements for each category.

Surfacing Materials: Refers to spray-applied or troweled surfaces such as plaster ceilings and walls, fireproofing, textured paints, textured plasters, and spray applied acoustical surfaces.

Thermal System Insulation Refers to insulation used to inhibit heat gain or loss on pipes, boilers, tanks, ducts, and various other building components.

Miscellaneous Materials Refers to friable and non-friable products and materials that do not fit in any of the above two categories such as resilient floor covering, baseboards, mastics, adhesives, roofing material, caulking, glazing, and siding. This category also contains wallboard and joint compound wall systems and acoustical ceiling tile.

All confirmed ACMs were then assessed by their condition as good (no visible damage or showing only very limited damage or deterioration), damaged (less than 25% localized damage or 10% distributed damage), significantly damaged (25% or greater localized damage or 10% or greater distributed damage) per Title 40 Code of Federal Regulations Part 63.

4.3 Sampling Strategy

The asbestos inspection was conducted in general accordance with the AHERA requirements using a minimum number of samples collected for each homogenous material, which also meet the sampling requirement found in 29 CFR 1926.1101.

If the analytical results indicated that all the samples collected per homogenous material did not contain asbestos, then the homogenous material would be considered a non-ACM. However, if the analytical results of one or more of the samples collected per homogenous material indicate that asbestos is present in quantities of greater than 1 percent asbestos by weight (as defined by EPA), all of the homogenous material would be treated as an ACM regardless of any other analytical results. Material which can visually be determined to be non-asbestos (i.e., fibrous glass, foam rubber, metal, etc.) by the accredited inspector are not required to be sampled.

Miscellaneous materials require adequately representative sampling, which is typically done by collecting from one to three samples per material. Inspectors typically rely on other survey observations such as the condition, friability, and quantity of material to determine what would be a sufficient amount of samples to accurately evaluate the presence or absence of asbestos content. For this survey, three samples per each homogenous miscellaneous material were collected.

Actual collection of a bulk asbestos sample involves physically removing a small piece of material and placing it in a marked, airtight container. Sample containers are marked with a unique identification number, which is also noted in the field notes.

4.4 Suspect Asbestos-Containing Material

51 bulk asbestos samples were collected from the building and 111 sample layers were analyzed by Polarized Light Microscopy (PLM) based on the number of distinct layers (materials) associated with each bulk sample. For example, floor tile and associated mastic are collected as one bulk sample but are analyzed as two distinct materials by the asbestos laboratory, as required by NVLAP.

4.5 Laboratory Analytical Results

Bulk samples were analyzed by FRS Geotech, Inc. analytical laboratory located in Denver, Colorado, using PLM according to EPA method 600/R-93/116. This laboratory participates in the NVLAP, a quality assurance program for PLM.

Any material that contains greater than 1 percent (>1%) asbestos by PLM is considered an ACM and must be handled according to OSHA, EPA, and applicable state and local regulations.

In addition, the U.S. Occupational Safety and Health Administration (OSHA) define asbestos as building materials containing between one tenth of one percent and one percent (0.1%-1%).

For friable materials, when the amount of asbestos in the sample material is reported as “None- Detected” by PLM analysis, no further verification of the sample results by Point Counting Methodology is recommended.

For friable materials, when the amount of asbestos in the sample material is reported as “Trace Asbestos Detected” or less than 10% asbestos by PLM analysis, the client may either assume the amount to be greater than 1% and treat the material as ACM or require further verification of the amount by Point Counting Methods. If the result obtained by Point Counting is different from the result obtained by PLM analysis, the Point Count Method result should be used.

For non-friable materials, when the amount of asbestos in the sample material is reported as greater than 1% asbestos by PLM analysis, no further verification of the sample results by alternative methods of identification such as Transmission Electron Microscopy (TEM) Chatfield Method is recommended.

For non-friable materials such as vinyl/asphaltic products (floor tiles/floor sheeting, mastics, shingles, etc.), where small, thin asbestos fibers may have been potentially milled into the nonorganic binder matrix, when the amount of asbestos in the sample material is reported as “None-Detected” by PLM analysis, due to the difficulty in analyzing such small, thin asbestos fibers in resinously bound materials by PLM analysis, EPA recommends but does not require that these types of materials, which were reported as non-ACMs by PLM, be further analyzed using TEM Chatfield Method. Tetra Tech did not conduct such analysis.

The results of the laboratory analysis are summarized in tabular form in Section 5.0. The laboratory analytical report and corresponding chain-of-custody documents are included in Appendix A. Results are reported in percent asbestos by volume and indicate the types of asbestos. Other common non-asbestos components may also be noted on the analytical reports. A drawing(s) showing bulk sample locations is provided in Appendix B. Inspector and laboratory accreditations are provided in Appendix C, and Appendix D presents photographs of all ACM’s identified in the building (if present).

5.0 ASBESTOS-CONTAINING MATERIALS SURVEY AND ASBESTOS ABATEMENT COST

ESTIMATES SUMMARY TABLE

ACM Bulk Sampling Results

Salt Lake Field Office, Utah

Homogeneous

Material

Material

Category

Required

Number of

Samples to be

Collected

Number of

Samples

Collected

Sample

Number(s) Location of Material Condition

Friable

(Yes/No)

Approximate

Material

Quantity

Asbestos

Content

ACM

Abatement

Cost

Estimate

Drywall & Joint

Compound M N/A 5

M3.1A, B, C, D, E 200, 201, 202 G Yes 1,040 SF ND $0.00

Drywall, Joint

Compound &

Texture

SM 5 5

M3.2A, B, C, D, E

201, 202, 203, 204, 205, 206, 207, 208, 209, 210, 211, 212

G Yes 4,775 SF ND $0.00

Ceiling Panel –

Small Hole M N/A 5

M5.1A, B, C, D, E

200, 201, 202, 203, 204, 205, 207, 210, 211, 212 G Yes 2,475 SF ND $0.00

Ceiling Panel –

Large Hole M N/A 3

M5.1A, B, C 200, 201, 202, 210 G Yes 120 SF ND $0.00

12”x12” Floor

Tile M N/A 5

F2.1A, B, C, D, E

104, 105, 108, 109, 112, 113, 116, 117, 120, 121, 124, 125, 128, 129, 132, 133, 203, 204, 205, 206, 207, 208, 209

G No 1,162 SF ND $0.00

Cove Base &

Mastic – Yellow M N/A 3

M11.1A, B, C

201, 202, 203, 204, 205, 206, 207, 208, 209, G No 103 SF ND $0.00

Cove Base &

Mastic – Black M N/A 3

M11.2A, B, C 210 G No 29 SF ND $0.00

Drywall, Joint

Compound &

Mastic

SM 7 7

M3.3A, B, C, D, E, F, G

Rooms 100 through 134 G Yes 13,010 SF ND $0.00

Ceiling Texture SM 5 5 S1.1A, B, C, D, E Rooms 100 through 134 G Yes 3,410 SF ND $0.00

Cove Base &

Mastic – Tan M N/A 3

M11.3A, B, C Rooms 100 through 134 G No 354 SF ND $0.00

ACM Bulk Sampling Results

Salt Lake Field Office, Utah

Homogeneous

Material

Material

Category

Required

Number of

Samples to be

Collected

Number of

Samples

Collected

Sample

Number(s) Location of Material Condition

Friable

(Yes/No)

Approximate

Material

Quantity

Asbestos

Content

ACM

Abatement

Cost

Estimate

Stucco SM 5 7 S4.1A, B, C, D, E Ext G Yes 3,722 SF ND $0.00

AHERA Guidelines for Determining the Number of Samples to Collect ND = None Detected N/A = Not Applicable

MATERIAL CATEGORY:

M = Miscellaneous Material

SM = Surfacing Material

TSI = Thermal System Insulation

APPROXIMATE MATERIAL QUANTITIES:

SF = Square Feet

LF = Linear Feet

Ea = Each

CONDITION:

G = Good

D = Damaged

SD = Significantly Damaged

Homogeneous Material

Category

Homogeneous

Material Quantity Number of Samples Required

Surfacing Materials

<1000 SF 3

1000 - 5000 SF 5

>5000 SF 7 or more

Thermal System Insulation No Stipulation 3 (Must also sample all repair patches)

Miscellaneous Materials No Stipulation

Per AHERA, these materials must be sampled "in a manner sufficient to determine whether or not they contain asbestos." To satisfy National Emission

Standards for Hazardous Air Pollutants (NESHAP) requirements, a minimum of 3 samples were collected.

6.0 CONCLUSIONS

The results of the asbestos survey conducted at the L2031 – Muskrat Springs Living Quarters, Salt Lake Field Office, Utah facility building indicate that: none of the accessible suspect building materials sampled were found to contain more than 1% asbestos.

Contractors and employees working in this building should be made aware of the possibility that concealed ACMs may be found during demolition/renovation. They should be advised not to disturb known or suspect ACMs without owner approval.

Any concealed building materials discovered during maintenance or renovation activities, which are suspected to contain asbestos, should be sampled and analyzed to confirm the presence of asbestos prior to disturbing.

The EPA has not prohibited the manufacture and import of miscellaneous materials, such as vinyl floorings, mastics, roofing materials, etc. As a result, any future replacement materials should be checked for the presence of asbestos prior to installation.

7.0 ASSUMPTIONS AND LIMITATIONS

The results, findings, conclusions, and recommendations expressed in the report are based only on conditions that were noted during Tetra Tech’s inspection of the L2031 – Muskrat Springs Living Quarters located at the Salt Lake Field Office, Utah.

The selection of sample locations and frequency of sampling was based on Tetra Tech’s observations and the assumption that like materials in the same area are homogeneous in content. Limited destructive investigation was conducted as needed. Concealed ACMs may exist in concealed areas not investigated or identified.

The report is designed to aid the client in understanding the extent of ACM issues as they pertain to the “Recognition and Measurement of Asbestos-Related Cleanup Costs,” Technical Bulletin 2006-1, prepared by the Federal Accounting Standards Advisory Board, dated September 28, 2006 and to the renovation/demolition areas of the facility building areas. It should be noted that this report is not a complete Asbestos Abatement Specification or Work Plan.

Our professional services have been performed, our findings obtained, and our conclusions prepared in accordance with customary principles and practices in the fields of environmental science and engineering. This statement is in lieu of other statements either expressed or implied. This report does not warrant against future operations or conditions, nor does it warrant against operations or conditions present of a type or at a location not investigated.

Asbestos abatement cost estimates were obtained from asbestos abatement contractors who have not visited the site and have not seen the ACM to be abated. The costs provided herein, are magnitude estimates of costs with the following assumptions made:

Assumes free and clear access to the work area during working hours.

Assumes one mobilization to complete the abatement of one ACM.

Assumes both Power and water at no cost to contractor.

Assumes protect in place all above ceiling electrical wiring, fire alarm, and WiFi cables.

Does not include the demolition of any building components other than ACM.

Pricing assumes that any required inspections and air testing is provided by the building owner or owner’s representative.

Assumes that no special conditions are added by any State or local regulatory agency.

Work hours 7:00 AM to 5:00 PM Monday through Friday.

Not be held responsible for packaging, moving or damage to items being moved, nor for providing storage and/or inventory of these items. If storage or inventory is needed the owner will provide what is necessary. Responsibility of any personal items is the owner’s.

No delays interfering with the diligent execution of the work beyond the contractor’s control will be encountered.

APPENDIX A

ACM LABORATORY ANALYTICAL RESULTS

FRS Geotech, Inc.

1441 W. 46th Ave, Ste. 14 Denver, CO 80211-2338

September 27, 2010

Mr. Ryan Egan Tetra Tech 3801 Automation Way Suite 100 Fort Collins, CO 80525

Re: Project: BLM--L2031, PO#114-182065

FRS Lab Number 115438

Phone: (303) 477-2559

(800) 386-3136

FAX: (303) 477-2580

e-mail: frsgeo@ix.netcom.com

Dear Mr. Ryan Egan:

The bulk samples submitted to FRS Geotech, Inc. have been analyzed by polarized light microscopy (PLM), the EPA-recommended method for determination of fibrous constituents in building materials. The percent of asbestos contained in the samples is a visual estimation based upon comparisons with published charts. The results of these analyses are summarized in the enclosed table. This report relates only to the items received and tested by our laboratory. According to requirements set by the National Institute of Standards and Technology/NVLAP, this report must not be used to claim endorsement by NVLAP or any agency of the US Government. Also, NVLAP guidelines specify that this report should not be reproduced, except in full, without the written approval of FRS.

A copy of your Chain of Custody is attached for your convenience. This report is considered highly confidential. Results will not be discussed with any person not associated with you.

Please call if you have any questions about this work.

Sincerely, David A. Schroeder, Ph.D.

Data Controller

Enclosures

NVLAP Accredited Lab #102078-0 AIHA Accredited Lab #101557

FRS GEOTECH, INC.

1441 W. 46th Avenue, Ste. 14 Denver, CO 80211-2338

Phone: (303) 477-2559

Fax: (303) 477-2580 e-mail: frsgeo@ix.netcom.com

(800) 386-3136RESULTS OF BULK ASBESTOS SAMPLE ANALYSIS

BY POLARIZED LIGHT MICROSCOPY (PLM) EPA-600/R-93/116

Client: Tetra Tech Project: BLM--L2031, PO#114-182065

Lab No.: 115438

Sample No. [layer] Sample

Date Summary (%) Nonasbestos

Fibrous Material (%)

Asbestos

Minerals (%)Volume (%)Description

M3.1A*

Drywall/compound [two layers]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material 94 Others .

Composite (100%)

Trace <1%

Other Fibrous Material

___M3.1A [A]

[White drywall]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material 94 Others .

Layer vol. = 99%

Trace <1%

Other Fibrous Material

___M3.1A [B]

[White compound or texture with paint]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material 100 Others .

Layer vol. = 1%

--Other Fibrous Material

M3.1B

Drywall/compound [white drywall with paint]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material 94 Others .

100%

Trace <1%

Other Fibrous Material

M3.1C

Drywall/compound [white drywall with paint]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material 93 Others .

100%

Trace <1%

Other Fibrous Material

* Composite analysis (multilayered sample, see individual layer analyses).

Analyst(s): 09/24/2010Completed:

Mark Cooperrider

Denver, CO 80211-2338

Phone: (303) 477-2559

Fax: (303) 477-2580 e-mail: frsgeo@ix.netcom.com

(800) 386-3136RESULTS OF BULK ASBESTOS SAMPLE ANALYSIS

BY POLARIZED LIGHT MICROSCOPY (PLM) EPA-600/R-93/116

Client: Tetra Tech Project: BLM--L2031, PO#114-182065

Lab No.: 115438

Sample No. [layer] Sample

Date Summary (%) Nonasbestos

Fibrous Material (%)

Asbestos

Minerals (%)Volume (%)Description

M3.1D*

Drywall/compound [two layers]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material 93 Others .

Composite (100%)

Trace <1%

Other Fibrous Material

___M3.1D [A]

[White drywall]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material 93 Others .

Layer vol. = 99%

Trace <1%

Other Fibrous Material

___M3.1D [B]

[White compound or texture with paint]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material 100 Others .

Layer vol. = 1%

--Other Fibrous Material

M3.1E

Drywall/compound [white drywall with paint]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material 94 Others .

100%

Other Fibrous Material

* Composite analysis (multilayered sample, see individual layer analyses).

Denver, CO 80211-2338

Phone: (303) 477-2559

Fax: (303) 477-2580 e-mail: frsgeo@ix.netcom.com

(800) 386-3136RESULTS OF BULK ASBESTOS SAMPLE ANALYSIS

BY POLARIZED LIGHT MICROSCOPY (PLM) EPA-600/R-93/116

Client: Tetra Tech Project: BLM--L2031, PO#114-182065

Lab No.: 115438

Sample No. [layer] Sample

Date Summary (%) Nonasbestos

Fibrous Material (%)

Asbestos

Minerals (%)Volume (%)Description

M3.2A*

Drywall/compound/texture [four layers]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material 91 Others .

Composite (100%)

Trace <1%

Other Fibrous Material

___M3.2A [A]

[White drywall]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material 93 Others .

Layer vol. = 94%

Trace <1%

Other Fibrous Material

___M3.2A [B]

[White compound]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material 100 Others .

Layer vol. = 2%

--Other Fibrous Material

___M3.2A [C]

[White tape]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material -- Others .

Layer vol. = 2%

Other Fibrous Material

___M3.2A [D]

[White texture with paint]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material 100 Others .

Layer vol. = 2%

--Other Fibrous Material

* Composite analysis (multilayered sample, see individual layer analyses).

Denver, CO 80211-2338

Phone: (303) 477-2559

Fax: (303) 477-2580 e-mail: frsgeo@ix.netcom.com

(800) 386-3136RESULTS OF BULK ASBESTOS SAMPLE ANALYSIS

BY POLARIZED LIGHT MICROSCOPY (PLM) EPA-600/R-93/116

Client: Tetra Tech Project: BLM--L2031, PO#114-182065

Lab No.: 115438

Sample No. [layer] Sample

Date Summary (%) Nonasbestos

Fibrous Material (%)

Asbestos

Minerals (%)Volume (%)Description

M3.2B*

Drywall/compound/texture [four layers]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material 91 Others .

Composite (100%)

Trace <1%

Other Fibrous Material

___M3.2B [A]

[White drywall]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material 93 Others .

Layer vol. = 94%

Trace <1%

Other Fibrous Material

___M3.2B [B]

[White compound]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material 100 Others .

Layer vol. = 2%

--Other Fibrous Material

___M3.2B [C]

[White tape]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material -- Others .

Layer vol. = 2%

Other Fibrous Material

___M3.2B [D]

[White texture with paint]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material 100 Others .

Layer vol. = 2%

--Other Fibrous Material

* Composite analysis (multilayered sample, see individual layer analyses).

Denver, CO 80211-2338

Phone: (303) 477-2559

Fax: (303) 477-2580 e-mail: frsgeo@ix.netcom.com

(800) 386-3136RESULTS OF BULK ASBESTOS SAMPLE ANALYSIS

BY POLARIZED LIGHT MICROSCOPY (PLM) EPA-600/R-93/116

Client: Tetra Tech Project: BLM--L2031, PO#114-182065

Lab No.: 115438

Sample No. [layer] Sample

Date Summary (%) Nonasbestos

Fibrous Material (%)

Asbestos

Minerals (%)Volume (%)Description

M3.2C*

Drywall/compound/texture [four layers]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material 89 Others .

Composite (100%)

Trace <1%

Other Fibrous Material

___M3.2C [A]

[White drywall]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material 91 Others .

Layer vol. = 94%

Trace <1%

Other Fibrous Material

___M3.2C [B]

[White compound]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material 100 Others .

Layer vol. = 2%

--Other Fibrous Material

___M3.2C [C]

[White tape]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material -- Others .

Layer vol. = 2%

Other Fibrous Material

___M3.2C [D]

[White texture]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material 100 Others .

Layer vol. = 2%

--Other Fibrous Material

* Composite analysis (multilayered sample, see individual layer analyses).

Denver, CO 80211-2338

Phone: (303) 477-2559

Fax: (303) 477-2580 e-mail: frsgeo@ix.netcom.com

(800) 386-3136RESULTS OF BULK ASBESTOS SAMPLE ANALYSIS

BY POLARIZED LIGHT MICROSCOPY (PLM) EPA-600/R-93/116

Client: Tetra Tech Project: BLM--L2031, PO#114-182065

Lab No.: 115438

Sample No. [layer] Sample

Date Summary (%) Nonasbestos

Fibrous Material (%)

Asbestos

Minerals (%)Volume (%)Description

M3.2D*

Drywall/compound/texture [four layers]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material 88 Others .

Composite (100%)

Trace <1%

Other Fibrous Material

___M3.2D [A]

[White drywall]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material 89 Others .

Layer vol. = 90%

Trace <1%

Other Fibrous Material

___M3.2D [B]

[White compound]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material 100 Others .

Layer vol. = 4%

--Other Fibrous Material

___M3.2D [C]

[White tape]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material -- Others .

Layer vol. = 2%

Other Fibrous Material

___M3.2D [D]

[White texture with paint]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material 100 Others .

Layer vol. = 4%

--Other Fibrous Material

* Composite analysis (multilayered sample, see individual layer analyses).

Denver, CO 80211-2338

Phone: (303) 477-2559

Fax: (303) 477-2580 e-mail: frsgeo@ix.netcom.com

(800) 386-3136RESULTS OF BULK ASBESTOS SAMPLE ANALYSIS

BY POLARIZED LIGHT MICROSCOPY (PLM) EPA-600/R-93/116

Client: Tetra Tech Project: BLM--L2031, PO#114-182065

Lab No.: 115438

Sample No. [layer] Sample

Date Summary (%) Nonasbestos

Fibrous Material (%)

Asbestos

Minerals (%)Volume (%)Description

M3.2E*

Drywall/compound/texture [four layers]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material 88 Others .

Composite (100%)

Trace <1%

Other Fibrous Material

___M3.2E [A]

[White drywall]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material 89 Others .

Layer vol. = 86%

Trace <1%

Other Fibrous Material

___M3.2E [B]

[White compound]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material 100 Others .

Layer vol. = 10%

--Other Fibrous Material

___M3.2E [C]

[White tape]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material -- Others .

Layer vol. = 2%

Other Fibrous Material

___M3.2E [D]

[White texture with paint]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material 100 Others .

Layer vol. = 2%

--Other Fibrous Material

M5.1A

Ceiling panel [gray, with white face]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material 74 Others .

100%

Trace <1%

Other Fibrous Material

* Composite analysis (multilayered sample, see individual layer analyses).

Denver, CO 80211-2338

Phone: (303) 477-2559

Fax: (303) 477-2580 e-mail: frsgeo@ix.netcom.com

(800) 386-3136RESULTS OF BULK ASBESTOS SAMPLE ANALYSIS

BY POLARIZED LIGHT MICROSCOPY (PLM) EPA-600/R-93/116

Client: Tetra Tech Project: BLM--L2031, PO#114-182065

Lab No.: 115438

Sample No. [layer] Sample

Date Summary (%) Nonasbestos

Fibrous Material (%)

Asbestos

Minerals (%)Volume (%)Description

M5.1B

Ceiling panel [gray, with white face]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material 74 Others .

100%

Trace <1%

Other Fibrous Material

M5.1C

Ceiling panel [gray, with white face]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material 69 Others .

100%

Trace <1%

Other Fibrous Material

M5.1D

Ceiling panel [gray, with white face]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material 74 Others .

100%

Other Fibrous Material

M5.1E

Ceiling panel [tan, with white face]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material 69 Others .

100%

Trace <1%

Other Fibrous Material

M5.2A

Ceiling panel [gray, with white face]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material 68 Others .

100%

Other Fibrous Material

M5.2B

Ceiling panel [gray, with white face]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material 68 Others .

100%

Other Fibrous Material

* Composite analysis (multilayered sample, see individual layer analyses).

Denver, CO 80211-2338

Phone: (303) 477-2559

Fax: (303) 477-2580 e-mail: frsgeo@ix.netcom.com

(800) 386-3136RESULTS OF BULK ASBESTOS SAMPLE ANALYSIS

BY POLARIZED LIGHT MICROSCOPY (PLM) EPA-600/R-93/116

Client: Tetra Tech Project: BLM--L2031, PO#114-182065

Lab No.: 115438

Sample No. [layer] Sample

Date Summary (%) Nonasbestos

Fibrous Material (%)

Asbestos

Minerals (%)Volume (%)Description

M5.2C

Ceiling panel [gray, with white face]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material 68 Others .

100%

Other Fibrous Material

F2.1A*

12x12 floor tile [two layers]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material 100 Others .

Composite (100%)

--Other Fibrous Material

___F2.1A [A]

[Blue floor tile]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material 100 Others .

Layer vol. = 95%

--Other Fibrous Material

___F2.1A [B]

[Yellow mastic]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material 100 Others .

Layer vol. = 5%

--Other Fibrous Material

* Composite analysis (multilayered sample, see individual layer analyses).

Denver, CO 80211-2338

Phone: (303) 477-2559

Fax: (303) 477-2580 e-mail: frsgeo@ix.netcom.com

(800) 386-3136RESULTS OF BULK ASBESTOS SAMPLE ANALYSIS

BY POLARIZED LIGHT MICROSCOPY (PLM) EPA-600/R-93/116

Client: Tetra Tech Project: BLM--L2031, PO#114-182065

Lab No.: 115438

Sample No. [layer] Sample

Date Summary (%) Nonasbestos

Fibrous Material (%)

Asbestos

Minerals (%)Volume (%)Description

F2.1B*

12x12 floor tile [three layers]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material 100 Others .

Composite (100%)

--Other Fibrous Material

___F2.1B [A]

[Blue floor tile]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material 100 Others .

Layer vol. = 93%

--Other Fibrous Material

___F2.1B [B]

[Yellow mastic]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material 100 Others .

Layer vol. = 2%

--Other Fibrous Material

___F2.1B [C]

[White filler]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material 100 Others .

Layer vol. = 5%

--Other Fibrous Material

* Composite analysis (multilayered sample, see individual layer analyses).

Denver, CO 80211-2338

Phone: (303) 477-2559

Fax: (303) 477-2580 e-mail: frsgeo@ix.netcom.com

(800) 386-3136RESULTS OF BULK ASBESTOS SAMPLE ANALYSIS

BY POLARIZED LIGHT MICROSCOPY (PLM) EPA-600/R-93/116

Client: Tetra Tech Project: BLM--L2031, PO#114-182065

Lab No.: 115438

Sample No. [layer] Sample

Date Summary (%) Nonasbestos

Fibrous Material (%)

Asbestos

Minerals (%)Volume (%)Description

F2.1C*

12x12 floor tile [three layers]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material 100 Others .

Composite (100%)

--Other Fibrous Material

___F2.1C [A]

[Blue floor tile]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material 100 Others .

Layer vol. = 93%

--Other Fibrous Material

___F2.1C [B]

[Yellow mastic]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material 100 Others .

Layer vol. = 2%

--Other Fibrous Material

___F2.1C [C]

[White filler]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material 100 Others .

Layer vol. = 5%

--Other Fibrous Material

* Composite analysis (multilayered sample, see individual layer analyses).

Denver, CO 80211-2338

Phone: (303) 477-2559

Fax: (303) 477-2580 e-mail: frsgeo@ix.netcom.com

(800) 386-3136RESULTS OF BULK ASBESTOS SAMPLE ANALYSIS

BY POLARIZED LIGHT MICROSCOPY (PLM) EPA-600/R-93/116

Client: Tetra Tech Project: BLM--L2031, PO#114-182065

Lab No.: 115438

Sample No. [layer] Sample

Date Summary (%) Nonasbestos

Fibrous Material (%)

Asbestos

Minerals (%)Volume (%)Description

F2.1D*

12x12 floor tile [three layers]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material 100 Others .

Composite (100%)

--Other Fibrous Material

___F2.1D [A]

[Blue floor tile]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material 100 Others .

Layer vol. = 96%

--Other Fibrous Material

___F2.1D [B]

[Yellow mastic]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material 100 Others .

Layer vol. = 2%

--Other Fibrous Material

___F2.1D [C]

[White filler]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material 100 Others .

Layer vol. = 2%

--Other Fibrous Material

* Composite analysis (multilayered sample, see individual layer analyses).

Denver, CO 80211-2338

Phone: (303) 477-2559

Fax: (303) 477-2580 e-mail: frsgeo@ix.netcom.com

(800) 386-3136RESULTS OF BULK ASBESTOS SAMPLE ANALYSIS

BY POLARIZED LIGHT MICROSCOPY (PLM) EPA-600/R-93/116

Client: Tetra Tech Project: BLM--L2031, PO#114-182065

Lab No.: 115438

Sample No. [layer] Sample

Date Summary (%) Nonasbestos

Fibrous Material (%)

Asbestos

Minerals (%)Volume (%)Description

F2.1E*

12x12 floor tile [three layers]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material 100 Others .

Composite (100%)

--Other Fibrous Material

___F2.1E [A]

[Blue floor tile]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material 100 Others .

Layer vol. = 93%

--Other Fibrous Material

___F2.1E [B]

[Yellow mastic]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material 100 Others .

Layer vol. = 2%

--Other Fibrous Material

___F2.1E [C]

[White filler]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material 100 Others .

Layer vol. = 5%

--Other Fibrous Material

* Composite analysis (multilayered sample, see individual layer analyses).

Denver, CO 80211-2338

Phone: (303) 477-2559

Fax: (303) 477-2580 e-mail: frsgeo@ix.netcom.com

(800) 386-3136RESULTS OF BULK ASBESTOS SAMPLE ANALYSIS

BY POLARIZED LIGHT MICROSCOPY (PLM) EPA-600/R-93/116

Client: Tetra Tech Project: BLM--L2031, PO#114-182065

Lab No.: 115438

Sample No. [layer] Sample

Date Summary (%) Nonasbestos

Fibrous Material (%)

Asbestos

Minerals (%)Volume (%)Description

M11.1A*

Cove base/mastic [two layers]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material 100 Others .

Composite (100%)

--Other Fibrous Material

___M11.1A [A]

[Tan cove base]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material 100 Others .

Layer vol. = 95%

--Other Fibrous Material

___M11.1A [B]

[White mastic]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material 100 Others .

Layer vol. = 5%

--Other Fibrous Material

M11.1B*

Cove base/mastic [two layers]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material 100 Others .

Composite (100%)

--Other Fibrous Material

___M11.1B [A]

[Tan cove base]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material 100 Others .

Layer vol. = 95%

--Other Fibrous Material

___M11.1B [B]

[White mastic]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material 100 Others .

Layer vol. = 5%

--Other Fibrous Material

* Composite analysis (multilayered sample, see individual layer analyses).

Denver, CO 80211-2338

Phone: (303) 477-2559

Fax: (303) 477-2580 e-mail: frsgeo@ix.netcom.com

(800) 386-3136RESULTS OF BULK ASBESTOS SAMPLE ANALYSIS

BY POLARIZED LIGHT MICROSCOPY (PLM) EPA-600/R-93/116

Client: Tetra Tech Project: BLM--L2031, PO#114-182065

Lab No.: 115438

Sample No. [layer] Sample

Date Summary (%) Nonasbestos

Fibrous Material (%)

Asbestos

Minerals (%)Volume (%)Description

M11.1C*

Cove base/mastic [two layers]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material 100 Others .

Composite (100%)

--Other Fibrous Material

___M11.1C [A]

[Tan cove base]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material 100 Others .

Layer vol. = 97%

--Other Fibrous Material

___M11.1C [B]

[White mastic]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material 100 Others .

Layer vol. = 3%

--Other Fibrous Material

M11.2A*

Cove base/mastic [two layers]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material 100 Others .

Composite (100%)

--Other Fibrous Material

___M11.2A [A]

[Black cove base]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material 100 Others .

Layer vol. = 94%

--Other Fibrous Material

___M11.2A [B]

[White mastic]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material 100 Others .

Layer vol. = 6%

--Other Fibrous Material

* Composite analysis (multilayered sample, see individual layer analyses).

Denver, CO 80211-2338

Phone: (303) 477-2559

Fax: (303) 477-2580 e-mail: frsgeo@ix.netcom.com

(800) 386-3136RESULTS OF BULK ASBESTOS SAMPLE ANALYSIS

BY POLARIZED LIGHT MICROSCOPY (PLM) EPA-600/R-93/116

Client: Tetra Tech Project: BLM--L2031, PO#114-182065

Lab No.: 115438

Sample No. [layer] Sample

Date Summary (%) Nonasbestos

Fibrous Material (%)

Asbestos

Minerals (%)Volume (%)Description

M11.2B*

Cove base/mastic [two layers]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material 100 Others .

Composite (100%)

--Other Fibrous Material

___M11.2B [A]

[Black cove base]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material 100 Others .

Layer vol. = 94%

--Other Fibrous Material

___M11.2B [B]

[White mastic]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material 100 Others .

Layer vol. = 6%

--Other Fibrous Material

M11.2C*

Cove base/mastic [two layers]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material 100 Others .

Composite (100%)

--Other Fibrous Material

___M11.2C [A]

[Black cove base]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material 100 Others .

Layer vol. = 94%

--Other Fibrous Material

___M11.2C [B]

[White mastic]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material 100 Others .

Layer vol. = 6%

--Other Fibrous Material

* Composite analysis (multilayered sample, see individual layer analyses).

Denver, CO 80211-2338

Phone: (303) 477-2559

Fax: (303) 477-2580 e-mail: frsgeo@ix.netcom.com

(800) 386-3136RESULTS OF BULK ASBESTOS SAMPLE ANALYSIS

BY POLARIZED LIGHT MICROSCOPY (PLM) EPA-600/R-93/116

Client: Tetra Tech Project: BLM--L2031, PO#114-182065

Lab No.: 115438

Sample No. [layer] Sample

Date Summary (%) Nonasbestos

Fibrous Material (%)

Asbestos

Minerals (%)Volume (%)Description

M3.3A*

Drywall/compound/texture [four layers]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material 92 Others .

Composite (100%)

Trace <1%

Other Fibrous Material

___M3.3A [A]

[White drywall]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material 93 Others .

Layer vol. = 97%

Trace <1%

Other Fibrous Material

___M3.3A [B]

[White compound]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material 100 Others .

Layer vol. = 1%

--Other Fibrous Material

___M3.3A [C]

[White tape]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material -- Others .

Layer vol. = 1%

Other Fibrous Material

___M3.3A [D]

[White texture with paint]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material 100 Others .

Layer vol. = 1%

--Other Fibrous Material

* Composite analysis (multilayered sample, see individual layer analyses).

Denver, CO 80211-2338

Phone: (303) 477-2559

Fax: (303) 477-2580 e-mail: frsgeo@ix.netcom.com

(800) 386-3136RESULTS OF BULK ASBESTOS SAMPLE ANALYSIS

BY POLARIZED LIGHT MICROSCOPY (PLM) EPA-600/R-93/116

Client: Tetra Tech Project: BLM--L2031, PO#114-182065

Lab No.: 115438

Sample No. [layer] Sample

Date Summary (%) Nonasbestos

Fibrous Material (%)

Asbestos

Minerals (%)Volume (%)Description

M3.3B*

Drywall/compound/texture [two layers]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material 93 Others .

Composite (100%)

Trace <1%

Other Fibrous Material

___M3.3B [A]

[White drywall]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material 93 Others .

Layer vol. = 99%

Trace <1%

Other Fibrous Material

___M3.3B [B]

[White texture or compound with paint]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material 100 Others .

Layer vol. = 1%

--Other Fibrous Material

M3.3C*

Drywall/compound/texture [two layers]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material 93 Others .

Composite (100%)

Trace <1%

Other Fibrous Material

___M3.3C [A]

[White drywall]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material 93 Others .

Layer vol. = 99%

Trace <1%

Other Fibrous Material

___M3.3C [B]

[White texture or compound with paint]

08/11/10 Amosite

Anthophyllite

Chrysotile

Crocidolite

Trem./Act.

Total Asbestos: None DetectedFiberglass

Cellulose

Synthetics

Nonfibrous Material 100 Others .

Layer vol. = 1%

--Other Fibrous Material

* Composite analysis (multilayered sample, see…