SaLUT Soil and Land Use Technology, Inc.

1818 New York Avenue, N.E., Suite 231 Telephone: (301) 595-3783

Washington, DC 20002 Fax: (202) 832-1434 www.salutinc.com

Engineering Construction

March 6, 2017

Environmental Health and Safety, Facilities Division

Department of General Services

2000 14th Street, NW, 5th Floor

Washington, DC 20009

Attention: Mr. Brian Killian

Subject: Elevator Modernization – Asbestos and Lead Testing

Hendley Elementary School

425 Chesapeake Street SE

Washington, DC 20032

Job No.: 16-075

Dear Mr. Killian:

In accordance with your request our representatives, Mr. Wualter Hernandez a Licensed Asbestos

Inspector, and Mr. Dung Nguyen a Certified DC Lead Inspector, reported to Hendley Elementary

School located at 425 Chesapeake Street SE in the District of Columbia on February 21, 2017 to perform Lead-Based Paint (LBP) inspection and to conduct bulk sampling for suspect Asbestos

Contain Material (ACM) for elevator system prior to renovation or repair activities. This summary report addresses only the areas listed in Appendix A and B, therefore any other areas within the building will be assumed positive for lead and asbestos unless a test to be performed.

Lead Testing

The inspection was performed by using a Niton X-Ray Fluorescence (XRF) LBP analyzer, serial number 18595. The XRF was calibrated in accordance with the manufacturer’s instructions prior to obtaining readings from suspect painted surfaces. Housing and Urban Development (HUD) and

DC guidelines were followed to determine paint conditions. Painted surfaces on elevator system and adjacent surfaces that might be disturbed by the renovation or repair activities including but not limited to door system and wall system were analyzed at the time of inspection for lead presence.

Forty-one (41) XRF readings were conducted during this visit. The readings collected during this inspection are tabulated in Appendix A. The inspection revealed that there were no LBP hazards identified during the assessment.

Asbestos Sampling

Mr. Hernandez collected seven (7) bulk samples from twenty-one (21) homogeneous materials.

The number of samples collected complies with the minimum number of samples per material classification as specified under AHERA sampling protocols. Also, based on previous testing and sampling data, applicable samples areas were included in tabulated ACM testing results in

Appendix B.

The asbestos survey also included the review of the DGS Asbestos Hazard Emergency Response

Act (AHERA) Management Plan, consisting of floor plans, tested components, and National

Voluntary Laboratory Accreditation Program (NVLAP) approved testing results, and a re-inspection of the building to verify ACM.

The collected samples were submitted to AMA Analytical Services, Inc in Lanham, MD. Asbestos samples were analyzed by PLM analysis using EPA Method 600/R-93/116. The sample chain-of-custody and laboratory reports are provided in Appendix C.

Asbestos Sampling Results

Laboratory analysis of the asbestos bulk samples indicates three of sampled homogeneous sampling areas contain asbestos. Table 1 lists the sampled the homogeneous materials that were determined to contain asbestos. The table includes the location of the material, the sample numbers, and the highest concentration of asbestos detected in the analyzed samples.

Table 1: Summary of Positive Asbestos Testing Results

Homogenous Material

Description Location Sample ID Number

Results (at least one sample)

Floor Mastic, With Ha 23 Inside Elevator Table 4-1 (Area 024) Yes

Floor Tile, Black, 12" X 12", Solid Black Inside Elevator Table 4-1 (Area 058) Yes

Floor Tile, Gray, 9" X 9", With

Pink and Black Streaks Ground Floor Corridor 1 Table 4-1 (Area 005) Yes

Floor Mastic, With Ha 05 Ground Floor Corridor 1 Table 4-1 (Area 006) Yes

Floor Tile, Gray, 9" X 9", With

Black and White Streaks Ground Floor Corridor 1 Table 4-1 (Area 011) Yes

Floor Mastic, With Ha 11 Ground Floor Corridor 1 Table 4-1 (Area 012) Yes

Floor Tile, Blue, 9" X 9", With Light Blue Streaks

Ground Floor Corridor 1 Table 4-1 (Area 015) Yes

Homogenous Material

Description Location Sample ID Number

Results (at least one sample)

Cementitious Fitting, White, 2" - 10", Mudded Fittings

Ground Floor Corridor 1 Table 4-1 (Area 038) Yes

Floor Mastic, Beige, Mastic

With Ha 747 Ground Floor Corridor 1 Table 4-1 (Area 748) Yes

Floor Tile, Gray, 9" X 9", With

Pink and Black Streaks 1st Floor Corridor 100 Table 4-1 (Area 005) Yes

Floor Mastic, With Ha 05 1st Floor Corridor 100 Table 4-1 (Area 006) Yes

Floor Tile, Tan, 9" X 9", With

Maroon and White Streaks 1st Floor Corridor 100 Table 4-1 (Area 007) Yes

Floor Mastic, With Ha 07 1st Floor Corridor 100 Table 4-1 (Area 008) Yes

Floor Tile, Gray, 9" X 9", With

Black and White Streaks 1st Floor Corridor 100 Table 4-1 (Area 011) Yes

Floor Mastic, With Ha 11 1st Floor Corridor 100 Table 4-1 (Area 012) Yes

Cementitious Fitting, White, 2" -

10", Mudded Fittings 1st Floor Corridor 100 Table 4-1 (Area 038) Yes

Floor Mastic, Beige, Mastic with

Ha 747 1st Floor Corridor 100 Table 4-1 (Area 748) Yes

Floor Tile, Gray, 9" X 9", With Pink and Black Streaks

2nd Floor Corridor 200 Table 4-1 (Area 005) Yes

Floor Mastic, With Ha 05 2nd Floor Corridor 200 Table 4-1 (Area 006) Yes

Floor Tile, Tan, 9" X 9", With Maroon and White Streaks

2nd Floor Corridor 200 Table 4-1 (Area 007) Yes

Floor Mastic, With Ha 07 2nd Floor Corridor 200 Table 4-1 (Area 008) Yes

Floor Tile, Gray, 9" X 9", With

Black and White Streaks 2nd Floor Corridor 200 Table 4-1 (Area 011) Yes

Floor Mastic, With Ha 11 2nd Floor Corridor 200 Table 4-1 (Area 012) Yes

Floor Tile, Green, 12" X 12", With White Streaks 2nd Floor Corridor 200 Table 4-1 (Area 021) Yes

Floor Mastic, , , With Ha 21 2nd Floor Corridor 200 Table 4-1 (Area 022) Yes

Location Sample ID Number

Results (at least one sample)

Floor Mastic, Beige, Mastic with Ha 747

2nd Floor Corridor 200 Table 4-1 (Area 748) Yes

Floor Tile, Gray, 9" X 9", With

Pink and Black Streaks 3rd Floor Corridor 300 Table 4-1 (Area 005) Yes

Floor Mastic, With Ha 05 3rd Floor Corridor 300 Table 4-1 (Area 006) Yes

Floor Tile, Beige, 9" X 9", With

Tan and White Marks 3rd Floor Corridor 300 Table 4-1 (Area 009) Yes

Floor Mastic, With Ha 09 3rd Floor Corridor 300 Table 4-1 (Area 010) Yes

Floor Tile, Gray, 9" X 9", With

Black and White Streaks 3rd Floor Corridor 300 Table 4-1 (Area 011) Yes

Floor Mastic, With Ha 11 3rd Floor Corridor 300 Table 4-1 (Area 012) Yes

Cementitious Fitting, White, 2" -

10", Mudded Fittings 3rd Floor Corridor 300 Table 4-1 (Area 038) Yes

Brown Coat, With Ha 033 3rd Floor Corridor 300 Table 4-1 (Area 043) Yes

Floor Tile, Beige, 12" X 12", White and Brown Specks 3rd Floor Corridor 300 Table 4-1 (Area 053) Yes

Floor Mastic, Beige, Mastic With Ha 747

3rd Floor Corridor 300 Table 4-1 (Area 748) Yes

Recommendations

Based on the United States Environmental Protection Agency’s (USEPA) definition, a material which contains greater than one percent (1%) asbestos must be handled according to OSHA and

USEPA regulations if disturbed. Materials summarized in table 1 are considered as Category II

Non-friable material. According to 40 CFR Part 61.141 Category II Non-Friable ACM may become RACM if:

The ACM becomes friable

The ACM has a high probability of becoming or has become crumbled, pulverized, or reduced to powder by the forces expected to act on the material in the course of demolition or renovation operations

Material which contain greater than one percent (1%) asbestos must be handled according to

OSHA, USEPA and DOEE regulations if disturbed. In addition, all suspect Asbestos Containing

Waste Materials (ACWM) must be segregated from non-asbestos waste and disposed of in accordance with District & federal asbestos regulations.

SaLUT appreciates the opportunity to provide these services to DGS. If you have any questions regarding these results, please feel free to contact me at (602) 488-8435.

Best regards, Azzam Jawad.

Project Manager

Appendix A: XRF Reading Results

XRF

Reading Component Substrate Side Condition Color Floor Room Results

Lead

(mg/cm²)

1 Calibration Positive 1.1

2 Calibration Positive 1.2

3 Calibration Positive 1.1

4 Wall Concrete B Intact White Third Hall Adj Stair 1 Negative 0

5 Wall Concrete B Intact Gray Third Hall Adj Stair 1 Negative 0

6 Elevator Door Metal B Deteriorated Gray Third Hall Adj Stair 1 Negative 0.17

Elevator Door

Frame Metal B Deteriorated Gray Third Hall Adj Stair 1 Negative 0.15

Elevator Door

Frame Metal B Deteriorated Gray Third Hall Adj Stair 1 Negative 0.04

9 Wall Concrete B Intact White Second Hall Adj 201 Negative 0

10 Wall Concrete B Intact Gray Second Hall Adj 201 Negative 0.48

11 Elevator Door Metal B Intact Gray Second Hall Adj 201 Negative 0.19

Elevator Door

Frame Metal B Deteriorated Gray Second Hall Adj 201 Negative 0.11

13 Wall Concrete B Intact White Ground Hall Adj G06 Negative 0

14 Wall Concrete B Intact Orange Ground Hall Adj G06 Negative 0.4

15 Wall Concrete B Intact Orange Ground Hall Adj G06 Negative 0

16 Wall Concrete B Intact Orange Ground Hall Adj G06 Negative 0.5

17 Elevator Door Metal B Deteriorated Gray Ground Hall Adj G06 Negative 0.2

Elevator Door

Frame Metal B Deteriorated Gray Ground Hall Adj G06 Negative 0.31

19 Wall Metal A Intact Beige Inside Elevator Negative 0.13

20 Wall Metal B Intact Beige Inside Elevator Negative 0.2

21 Wall Metal C Intact Beige Inside Elevator Negative 0.32

22 Baseboard Metal B Intact Black Inside Elevator Negative 0.05

23 Door Metal D Deteriorated Beige Inside Elevator Negative 0.37

24 Wall Concrete B Intact White Third Hall Adj Stair 1 Negative 0

25 Wall Concrete B Intact Gray Third Hall Adj Stair 1 Negative 0

26 Elevator Door Metal B Deteriorated Gray Third Hall Adj Stair 1 Negative 0.17

27 Hand Rail Metal C Deteriorated White Penthouse Machine Room Negative 0.4

28 Wall String Metal A Deteriorated White Penthouse Machine Room Negative 0.5

29 Wall String Wood D Intact White Penthouse Machine Room Negative 0.08

30 Door Frame Metal D Deteriorated White Penthouse Machine Room Negative 0.02

31 Wall Concrete A Intact White Penthouse Machine Room Negative 0

32 Wall Concrete B Intact White Penthouse Machine Room Negative 0

33 Wall Concrete C Intact White Penthouse Machine Room Negative 0

34 Wall Concrete D Intact White Penthouse Machine Room Negative 0

35 Column Concrete C Deteriorated White Penthouse Machine Room Negative 0

36 Elevator Winch Metal C Deteriorated White Penthouse Machine Room Negative 0.05

37 Hand Rail Metal C Deteriorated White Penthouse Machine Room Negative 0.4

38 Wall String Metal A Deteriorated White Penthouse Machine Room Negative 0.5

39 Calibration Positive 1.1

40 Calibration Positive 1.0

41 Calibration Positive 1.2

Appendix B: ACM Testing Results

Location Sample ID Number

Results (at least one sample)

Floor Tiles, Gray, 12” X 12”, Linoleum

Ground Floor Hallway

HES-022217-1

HES-022217-2

HES-022217-3

None Detected

Glue, Yellow, with 12 X12

Floor Tiles Ground Floor Hallway

HES-022217-4

HES-022217-5

HES-022217-6

None Detected

Flooring, Black, 2” X 2”, Terrazzo 1st Floor Hallway

HES-022217-7

HES-022217-8

HES-022217-9

None Detected

Glue, Brown/Gray, with 2” X

2”, Terrazzo 1st Floor Hallway

HES-022217-10

HES-022217-11

HES-022217-12

None Detected

CT, White, 2” X 2” Ground Floor Hallway

HES-022217-13

HES-022217-14

HES-022217-15

None Detected

Mastic, Brown, Baseboard

Mastic Inside Elevator

HES-022217-16

HES-022217-17

HES-022217-18

None Detected

Leveling Compound, White 3rd Floor Hallway

HES-022217-19

HES-022217-20

HES-022217-21

None Detected

Floor Tile, White, 12" X 12", With Gray Marks

Inside Elevator Table 4-1 (Area 023) None Detected

Floor Mastic, , , With Ha 23 Inside Elevator Table 4-1 (Area 024) Yes

Floor Tile, Black, 12" X 12", Solid Black

Inside Elevator Table 4-1 (Area 058) Yes

Floor Mastic, , , With Ha 058 Inside Elevator Table 4-1 (Area 059) None Detected

Floor Tile, Gray, 9" X 9", With Pink And Black Streaks

Ground Floor Corridor 1 Table 4-1 (Area 005) Yes

Floor Mastic, , , With Ha 05 Ground Floor Corridor 1 Table 4-1 (Area 006) Yes

Floor Tile, Gray, 9" X 9", With

Black And White Streaks Ground Floor Corridor 1 Table 4-1 (Area 011) Yes

Floor Mastic, , , With Ha 11 Ground Floor Corridor 1 Table 4-1 (Area 012) Yes

Floor Tile, Blue, 9" X 9", With

Light Blue Streaks Ground Floor Corridor 1 Table 4-1 (Area 015) Yes

Floor Mastic, , , With Ha 15 Ground Floor Corridor 1 Table 4-1 (Area 016) None Detected

Location Sample ID Number

Results (at least one sample)

Floor Tile, White, 12" X 12", With Tan Marks

Ground Floor Corridor 1 Table 4-1 (Area 017) None Detected

Floor Mastic, , , With Ha 17 Ground Floor Corridor 1 Table 4-1 (Area 018) None Detected

Tile Grout, Gray, , Grout

Associated With Ceramic Wall Tile

Ground Floor Corridor 1 Table 4-1 (Area 035) None Detected

Baseboard Mastic, , , Cove Base

Adhesive Ground Floor Corridor 1 Table 4-1 (Area 037) None Detected

Cementitious Fitting, White, 2" -

10", Mudded Fittings Ground Floor Corridor 1 Table 4-1 (Area 038) Yes

Ceiling Tile, White, 2' X 4', Woven Tecum-Board Ground Floor Corridor 1 Table 4-1 (Area 045) None Detected

Floor Tile, TAN, 12" X 12", FLOOR TILE - WITH BROWN

(DARK AND LIGHT) SPECKS

Ground Floor Corridor 1 Table 4-1 (Area 747) None Detected

Floor Mastic, Beige, , Mastic

With Ha 747 Ground Floor Corridor 1 Table 4-1 (Area 748) Yes

Paper On Fiberglass Insulation, Pipe, TAN, , PAPER ON

FIBERGLASS INSULATION -

BLACK PAPER LAYER

Ground Floor Corridor 1 Table 4-1 (Area 750) None Detected

Ceiling Tile, WHITE, 2' X 4', CEILING TILE - FISSURES

(LATERAL) AND PINHOLES

Ground Floor Corridor 1 Table 4-1 (Area 751) None Detected

Ceiling Tile, White, 2' X 4', Woven Tecum-Board

Ground Floor Corridor 1 and 2 Table 4-1 (Area 045) None Detected

Plaster, WHITE, , HIGH WALL

BORDER

Ground Floor Corridor 1 and 2 Table 4-1 (Area 047) None Detected

Brown Coat, , , With Ha 047 Ground Floor Corridor 1 and 2 Table 4-1 (Area 048) None Detected

Tar Paper, Black, , Tar Paper On

Fiberglass Insulation Ground Floor Corridor 1 and 2 Table 4-1 (Area 051) None Detected

Floor Tile, Gray, 9" X 9", With

Pink And Black Streaks 1st Floor Corridor 100 Table 4-1 (Area 005) Yes

Floor Mastic, , , With Ha 05 1st Floor Corridor 100 Table 4-1 (Area 006) Yes

Floor Tile, Tan, 9" X 9", With

Maroon And White Streaks 1st Floor Corridor 100 Table 4-1 (Area 007) Yes

Location Sample ID Number

Results (at least one sample)

Floor Mastic, , , With Ha 07 1st Floor Corridor 100 Table 4-1 (Area 008) Yes

Floor Tile, Gray, 9" X 9", With

Black And White Streaks 1st Floor Corridor 100 Table 4-1 (Area 011) Yes

Floor Mastic, , , With Ha 11 1st Floor Corridor 100 Table 4-1 (Area 012) Yes

Tile Grout, Gray, , Grout

Associated With Ceramic Wall Tile

1st Floor Corridor 100 Table 4-1 (Area 035) None Detected

Baseboard Mastic, , , Cove Base

Adhesive 1st Floor Corridor 100 Table 4-1 (Area 037) None Detected

Cementitious Fitting, White, 2" -

10", Mudded Fittings 1st Floor Corridor 100 Table 4-1 (Area 038) Yes

Ceiling Tile, White, 2' X 4', Woven Tecum-Board 1st Floor Corridor 100 Table 4-1 (Area 045) None Detected

Plaster, White, , High Wall

Border 1st Floor Corridor 100 Table 4-1 (Area 047) None Detected

Brown Coat, , , With Ha 047 1st Floor Corridor 100 Table 4-1 (Area 048) None Detected

Tar Paper, Black, , Tar Paper On

Fiberglass Insulation 1st Floor Corridor 100 Table 4-1 (Area 051) None Detected

Floor Tile, Tan, 12" X 12", Floor Tile - With Brown (Dark

And Light) Specks

1st Floor Corridor 100 Table 4-1 (Area 747) None Detected

Floor Mastic, Beige, , Mastic With Ha 747

1st Floor Corridor 100 Table 4-1 (Area 748) Yes

Window Glaze, Gray, , 1st Floor Corridor 100 Table 4-1 (Area 749) None Detected

Paper On Fiberglass Insulation, Pipe, Tan, , Paper On Fiberglass

Insulation - Black Paper Layer

1st Floor Corridor 100 Table 4-1 (Area 750) None Detected

Floor Tile, Gray, 9" X 9", With

Pink And Black Streaks 2nd Floor Corridor 200 Table 4-1 (Area 005) Yes

Floor Mastic, , , With Ha 05 2nd Floor Corridor 200 Table 4-1 (Area 006) Yes

Floor Tile, Tan, 9" X 9", With

Maroon And White Streaks 2nd Floor Corridor 200 Table 4-1 (Area 007) Yes

Location Sample ID Number

Results (at least one sample)

Floor Mastic, , , With Ha 07 2nd Floor Corridor 200 Table 4-1 (Area 008) Yes

Floor Tile, Gray, 9" X 9", With

Black And White Streaks 2nd Floor Corridor 200 Table 4-1 (Area 011) Yes

Floor Mastic, , , With Ha 11 2nd Floor Corridor 200 Table 4-1 (Area 012) Yes

Floor Tile, White, 12" X 12", With Tan Marks 2nd Floor Corridor 200 Table 4-1 (Area 017) None Detected

Floor Mastic, , , With Ha 17 2nd Floor Corridor 200 Table 4-1 (Area 018) None Detected

Floor Tile, Green, 12" X 12", With White Streaks 2nd Floor Corridor 200 Table 4-1 (Area 021) Yes

Floor Mastic, , , With Ha 21 2nd Floor Corridor 200 Table 4-1 (Area 022) Yes

Plaster, White, , Old Section Of

Building 2nd Floor Corridor 200 Table 4-1 (Area 033) None Detected

Tile Grout, Gray, , Grout Associated With Ceramic Wall

Tile

2nd Floor Corridor 200 Table 4-1 (Area 035) None Detected

Baseboard Mastic, , , Cove Base

Adhesive 2nd Floor Corridor 200 Table 4-1 (Area 037) None Detected

Cementitious Fitting, White, 2" - 10", Mudded Fittings

2nd Floor Corridor 200 Table 4-1 (Area 038) None Detected

Brown Coat, , , With Ha 033 2nd Floor Corridor 200 Table 4-1 (Area 043) None Detected

Ceiling Tile, White, 2' X 4', Woven Tecum-Board

2nd Floor Corridor 200 Table 4-1 (Area 045) None Detected

Plaster, White, , High Wall

Border 2nd Floor Corridor 200 Table 4-1 (Area 047) None Detected

Brown Coat, , , With Ha 047 2nd Floor Corridor 200 Table 4-1 (Area 048) None Detected

Floor Tile, Tan, 12" X 12", Floor Tile - With Brown (Dark And Light) Specks

2nd Floor Corridor 200 Table 4-1 (Area 747) None Detected

Floor Mastic, Beige, , Mastic

With Ha 747 2nd Floor Corridor 200 Table 4-1 (Area 748) Yes

Floor Tile, Gray, 9" X 9", With

Pink And Black Streaks 3rd Floor Corridor 300 Table 4-1 (Area 005) Yes

Location Sample ID Number

Results (at least one sample)

Floor Mastic, , , With Ha 05 3rd Floor Corridor 300 Table 4-1 (Area 006) Yes

Floor Tile, Beige, 9" X 9", With

Tan And White Marks 3rd Floor Corridor 300 Table 4-1 (Area 009) Yes

Floor Mastic, , , With Ha 09 3rd Floor Corridor 300 Table 4-1 (Area 010) Yes

Floor Tile, Gray, 9" X 9", With

Black And White Streaks 3rd Floor Corridor 300 Table 4-1 (Area 011) Yes

Floor Mastic, , , With Ha 11 3rd Floor Corridor 300 Table 4-1 (Area 012) Yes

Floor Tile, White, 12" X 12", With Tan Marks 3rd Floor Corridor 300 Table 4-1 (Area 017) None Detected

Floor Mastic, , , With Ha 17 3rd Floor Corridor 300 Table 4-1 (Area 018) None Detected

Floor Tile, Gray, 12" X 12", With Tan Marks 3rd Floor Corridor 300 Table 4-1 (Area 019) None Detected

Floor Mastic, , , With Ha 19 3rd Floor Corridor 300 Table 4-1 (Area 020) None Detected

Plaster, White, , Old Section Of

Building 3rd Floor Corridor 300 Table 4-1 (Area 033) None Detected

Tile Grout, Gray, , Grout

Associated With Ceramic Wall

Tile

3rd Floor Corridor 300 Table 4-1 (Area 035) None Detected

Baseboard Mastic, , , Cove Base Adhesive

3rd Floor Corridor 300 Table 4-1 (Area 037) None Detected

Cementitious Fitting, White, 2" - 10", Mudded Fittings

3rd Floor Corridor 300 Table 4-1 (Area 038) Yes

Brown Coat, , , With Ha 033 3rd Floor Corridor 300 Table 4-1 (Area 043) Yes

Ceiling Tile, White, 2' X 4', Woven Tecum-Board 3rd Floor Corridor 300 Table 4-1 (Area 045) None Detected

Plaster, White, , High Wall

Border 3rd Floor Corridor 300 Table 4-1 (Area 047) None Detected

Brown Coat, , , With Ha 047 3rd Floor Corridor 300 Table 4-1 (Area 048) None Detected

Floor Tile, Beige, 12" X 12", White And Brown Specks 3rd Floor Corridor 300 Table 4-1 (Area 053) Yes

Location Sample ID Number

Results (at least one sample)

Floor Mastic, , , With Ha 053 3rd Floor Corridor 300 Table 4-1 (Area 054) None Detected

Floor Tile, Tan, 12" X 12", Floor Tile - With Brown (Dark And Light) Specks

3rd Floor Corridor 300 Table 4-1 (Area 747) None Detected

Floor Mastic, Beige, , Mastic

With Ha 747 3rd Floor Corridor 300 Table 4-1 (Area 748) Yes

Window Glaze, Gray, , 3rd Floor Corridor 300 Table 4-1 (Area 749) None Detected

Paper On Fiberglass Insulation, Pipe, Tan, , Paper On Fiberglass Insulation - Black Paper Layer

3rd Floor Corridor 300 Table 4-1 (Area 750) None Detected

Appendix C: Lab Results and Chain-of-Custody

Chain of Custody: 258028

Client: SaLUT, Inc.

Address: 1818 New York Avenue, NE Suite 111 Washington, DC 20002

Attention: Azzam Jawad

Job Name: Hendley Elementary School

Job Location: Elevator, Ground, 1st and 3rd Floor Hallways

Job Number: 16-075

P.O. Number: Not Provided

Date Submitted: 02/23/2017

Date Analyzed: 02/24/2017

Report Date: 02/24/2017

Date Sampled: 02/23/2017

Person Submitting: W. Hernandez

CERTIFICATE OF ANALYSIS

Summary of Polarized Light Microscopy

AMA

Sample Number

Client Sample Number

Total Asbestos

Chrysotile Percent

Amosite Percent

Crocidolite Percent

Other Asbestos Percent

Mineral Wool Percent

Fiberglass Percent

Organic Percent

Synthetic Percent

Other Percent

Particulate Percent

Sample Type

Sample Color

Homogeneity Analyst

ID

Comments

258028-1 HES-022217-1 NAD -- -- -- -- -- -- -- -- -- 100 FT Gray Homogeneous LBP

258028-2 HES-022217-2 NAD -- -- -- -- -- -- -- -- -- 100 FT Gray Homogeneous LBP

258028-3 HES-022217-3 NAD -- -- -- -- -- -- -- -- -- 100 FT Gray Homogeneous LBP

258028-4 HES-022217-4 NAD -- -- -- -- -- -- -- -- -- 100 Glue Yellow Homogeneous LBP

258028-5 HES-022217-5 NAD -- -- -- -- -- -- -- -- -- 100 Glue Yellow Homogeneous LBP

258028-6 HES-022217-6 NAD -- -- -- -- -- -- -- -- -- 100 Glue Yellow Homogeneous LBP

258028-7 HES-022217-7 NAD -- -- -- -- -- -- -- -- -- 100 TZ Black Homogeneous LBP

258028-8 HES-022217-8 NAD -- -- -- -- -- -- -- -- -- 100 TZ Black Homogeneous LBP

258028-9 HES-022217-9 NAD -- -- -- -- -- -- -- -- -- 100 TZ Black Homogeneous LBP

258028-10 HES-022217-10 NAD -- -- -- -- -- -- -- -- -- 100 Glue Brown Homogeneous LBP

258028-11 HES-022217-11 NAD -- -- -- -- -- -- -- -- -- 100 Glue Brown Homogeneous LBP

258028-12 HES-022217-12 NAD -- -- -- -- -- -- -- -- -- 100 Glue Yellow Homogeneous LBP

258028-13 HES-022217-13 NAD -- -- -- -- 70 -- -- -- -- 30 CT White Homogeneous LBP

258028-14 HES-022217-14 NAD -- -- -- -- 70 -- -- -- -- 30 CT White Homogeneous LBP

258028-15 HES-022217-15 NAD -- -- -- -- 70 -- -- -- -- 30 CT White Homogeneous LBP

258028-16 HES-022217-16 NAD -- -- -- -- -- -- -- -- -- 100 MS Brown Homogeneous LBP

258028-17 HES-022217-17 NAD -- -- -- -- -- -- -- -- -- 100 MS Brown Homogeneous LBP

258028-18 HES-022217-18 NAD -- -- -- -- -- -- -- -- -- 100 MS Brown Homogeneous LBP

258028-19 HES-022217-19 NAD -- -- -- -- -- -- -- -- -- 100 LC White Homogeneous LBP

258028-20 HES-022217-20 NAD -- -- -- -- -- -- -- -- -- 100 LC White Homogeneous LBP

258028-21 HES-022217-21 NAD -- -- -- -- -- -- -- -- -- 100 LC White Homogeneous LBP

4475 Forbes Blvd. · Lanham, MD, 20706 · (301) 459-2640 · Toll Free (800) 346-0961 · Fax (301) 459-2643 1/2

Chain of Custody: 258028

Client: SaLUT, Inc.

Address: 1818 New York Avenue, NE Suite 111 Washington, DC 20002

Attention: Azzam Jawad

Job Name: Hendley Elementary School

Job Location: Elevator, Ground, 1st and 3rd Floor Hallways

Job Number: 16-075

P.O. Number: Not Provided

Date Submitted: 02/23/2017

Date Analyzed: 02/24/2017

Report Date: 02/24/2017

Date Sampled: 02/23/2017

Person Submitting: W. Hernandez

CERTIFICATE OF ANALYSIS

Summary of Polarized Light Microscopy

AMA

Sample Number

Client Sample Number

Total Asbestos

Chrysotile Percent

Amosite Percent

Crocidolite Percent

Other Asbestos Percent

Mineral Wool Percent

Fiberglass Percent

Organic Percent

Synthetic Percent

Other Percent

Particulate Percent

Sample Type

Sample Color

Homogeneity Analyst

ID

Comments

The following footnotes only apply to those samples which the total asbestos result is flagged with a note number.

TEM RECOMMENDATION - Please note, due to resolution limitations with optical microscopy and/or interference from matrix components of this sample, results which are reported via PLM as negative or trace (<1%) for asbestos may contain a significant quantity of asbestos. It is recommended that the additional analytical technique of TEM be used to check for asbestos fibers below the resolution limits of optical microscopy.

MATRIX REDUCTION RECOMMENDATION - Please note, due to interference from the matrix components of this sample, results which are reported via PLM as negative or trace (<1%) for asbestos may contain a significant quantity of asbestos which is obscured from view. It is recommended that the additional preparation technique of gravimetric reduction be performed on this sample to minimize the obscuring effects of matrix components, followed by reanalysis by PLM and/or TEM.

Analysis Method - EPA/600/R-93/116 dated July 1993 NAD = "No Asbestos Detected" TR = "Trace equals less than 1% of this component"

Uncertainty: For samples containing asbestos in range of 1-10% the CV is 0.43, 11-35% CV=0.55, >35 CV=0.23. All results are to be considered preliminary and subject to change unless signed by the Technical Director or Deputy.

Analyst(s): Lom Butruk

Technical Director Peerawut Chaikeenee

This report applies only to the sample, or samples, investigated and is not necessarily indicative of the quality or condition of apparently identical or similar products. As a mutual protection to clients, the public, and these Laboratories, this report is submitted and accepted for the exclusive use of the client to whom it is addressed and upon the condition that it is not to be used, in whole or in part, in any advertising or publicity matter without prior written authorization from us.

Sample types, locations, and collection protocols are based upon the information provided by the persons submitting them and, unless collected by personnel of these Laboratories, we expressly disclaim any knowledge and liability for the accuracy and completeness of this information. Residual sample material will be discarded in accordance with the appropriate regulatory guidelines, unless otherwise requested by the client. NVLAP accreditation applies only to polarized light microscopy of bulk samples and transmission electron microscopy of AHERA air samples. This report must not be used to claim, and does not imply product certification, approval, or endorsement by NVLAP or any agency of the Federal Government. All rights reserved. AMA Analytical Services, Inc.

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