Corcoran Gallery of Art...Corcoran Gallery of Art ECS Project 47:2199-A September 22, 2017 Page 5 contain detectable levels of respirable silica at levels ranging from 7.4 µ/m 3 (Sample

September 22, 2017

Mr. Dan Janniello, LEED AP The George Washington University 2025 F Street NW, Suite 200 Washington, DC 20052 [email protected]

ECS Project No. 47:2199-A Reference: Indoor Air Quality Monthly Testing Services, Corcoran Gallery of Art, 500 17th

Street NW, Washington, DC – August 2017 Dear Mr. Janniello: ECS Mid-Atlantic, LLC (ECS) is pleased to provide George Washington University (GWU) with the results of monthly Indoor Air Quality conducted in August 2017 at the above-referenced property. Methodology The testing parameters and acceptable limits were determined in collaboration with GWU. From the suitable methods available, ECS selected the following sample methods based on sampling feasibility, schedule, cost objectives, and prior history of performance in similar projects.

PROPOSED SAMPLE METHODS

Testing Parameter

Method Analysis Reporting

Time Sample

Locations Acceptable

Limit

Carbon Monoxide

Direct Read Instrument

Electrochemical sensor

Immediate Target Indoors,

Outdoors 9 parts per

million (ppm)

Carbon Dioxide Direct Read Instrument

Non-Dispersive Infrared Detector

Immediate Target Indoors,

Outdoors 1,000 ppm

Formaldehyde Assay 571

passive badge

NIOSH 2016, high performance liquid chromatography

24 Hours Target Indoors,

Blank 0.027 ppm

Corcoran Gallery of Art ECS Project 47:2199-A September 22, 2017 Page 2

Testing Parameter

Method Analysis Reporting

Time Sample

Locations Acceptable

Limit

Volatile Organic Compound Scan

Assay 521 passive badge

OSHA 7, Gas Chromatography

24 Hours Target Indoors,

Blank

Reference specific

parameters tested*

Mold Non-viable Spore Trap

Sampler Optical Microscopy 24 Hours

Target Indoors, Outdoors

Compare to Outdoors

Respirable Dust Indoor Air Sampler

NIOSH 0600 24 Hours Target Indoors 0.150 mg/m3 (EPA NAAQS

PM 10)

Silica Dust Indoor Air Sampler

NIOSH 7500 24 Hours Target Indoors 0.025 mg/m3 (OSHA Action

Level)

*CARB RELs = California Air Resources Board Recommended Exposure Limit, acute or 8-hour

ECS collected air samples for fungal spore count analysis. For air sample collection, a high volume sampling pump and air cassettes were utilized in sampling for airborne fungal spores, hyphal fragments, insect fragments, and pollen. Analytical background levels on the slide of skin fragments, fibers, and other debris are also reported. Samples were collected with an air flow of 15 liters/minute verified by a pre-calibrated rotameter for 5 minutes. Samples collected were shipped to Scientific Analytical institute, Inc. (SAI) located in Greensboro, North Carolina for analysis. SAI is an AIHA (American Industrial Hygiene Association) EMLAP (Environmental Microbiology Laboratory Accreditation Program) accredited laboratory. The samples were analyzed for total spore concentrations in accordance to the laboratory’s quantification methods. The analytical results and chain of custody are attached in the Appendix of the report. Formaldehyde and Volatile Organic Compound (VOC) sampling was conducted using passive indoor air quality samplers. Formaldehyde samples were analyzed by High Performance Liquid Chromatography using NIOSH Method 2016 by Assay Technology in Boardman, Ohio, an independent AIHA Accredited Laboratory. The VOC samples were analyzed by Gas Chromatograph in general accordance with OSHA Method 7 by Assay Technology. The VOC scan includes a panel of 25 common solvents, including: Acetone, Benzene, 1-Butanol, Butyl Acetate, Chloroform, Cyclohexanone, Ethyl Acetate, Ethyl Alcohol, Ethylbenzene, Heptane, Hexane, Isopropyl Alcohol, Methyl Ethyl Ketone, Methyl Isobutyl Ketone, Methyl Methacrylate, Methylene Chloride, Naphthalene, Perchloroethylene, 4-Phenyl Cyclohexene, Styrene, Tetrahydrofuran, Toluene, 1,1,1-Trichloroethane, Trichloroethylene, and m-, o-, and p-Xylenes. The Respirable Dust and Crystalline Silica samples were collected using indoor air sampling pumps fitted with pre-weighed poly-vinyl chloride filters. Respirable dust was determined by


gravimetric analysis by NIOSH Method 600 by SAI in Greensboro, North Carolina, an independent AIHA Accredited Laboratory. Crystalline silica concentrations was measured by X-Ray diffraction analysis using NIOSH Method 7500. Environmental conditions, including temperature and relative humidity (RH), were recorded using a Fluke brand meter. The purpose of these measurements was to evaluate if interior temperature and RH were sufficient to support mold growth and also to measure general indoor comfort parameters related to temperature/relative humidity. The relative humidity is the ratio of the amount of moisture contained in the air to the maximum amount of moisture the air can contain at a specific temperature. Additionally, a calibrated Air Quality Meter was used to collect measurements of carbon dioxide and carbon monoxide as general indicators of overall IAQ. Sample locations were identified by GWU representatives as areas of interest. Chemical and biological sampling was performed in occupied areas of the facility. Biological samples were also collected outdoors for comparison purposes. As required by the sample method(s), blank samples were also submitted with each set of chemical samples. Results Mold Fungal spore-trap air samples were collected from the eight locations within the subject building identified by GWU representatives as areas of interest. Two representative exterior samples were collected for comparison. The appended table summarizes the results of sample analysis reported in spore counts per cubic meter of air. The analytical results of the eight samples indicate that the total concentrations of airborne fungal spores detected were less than spore concentrations reported on the exterior samples. In addition the fungal genera identified were generally comparable with outdoor genera detected. There are currently no accepted regulatory standards or guidelines with respect to acceptable fungal levels inside buildings. It is important to note however that spore trap measurements can fluctuate rapidly and the readings reported should not be used as a definitive indication that mold and or health hazards related to mold are present or absent. Carbon Monoxide and Carbon Dioxide Carbon monoxide and carbon dioxide were measured onsite utilizing a calibrated Air Quality meter. No readings exceeded the US EPA NAAQS or limits recommended in the Occupational Safety and Health Administration (OSHA) Technical manual for carbon monoxide or carbon dioxide respectively. The appended table summarizes the results


Formaldehyde No formaldehyde levels above the laboratory detection limit or the 27 parts per billion (ppb) reference criteria (reference US Green Building Council – LEED Standard) were found. Volatile Organic Compounds Twenty-one (21) of the 25 volatile organic compounds (VOCs) analyzed for were not detected in any of the VOC samples collected. The remaining four VOCs are discussed below. Acetone was detected in five locations; however, none of the levels exceeded the Agency for Toxic Substances and Disease Registry (ATSDR) Minimal Risk Level for Acetone [(13,000 parts per million (ppm)]. The detections were identified in the following locations:

• Sample Location 1 – Sub-Basement Wood Shop (0.059 ppm, 0.140 µ/m3) • Sample Location 3 – B112 Student Work Spaces (0.062 ppm, 0.147 µ/m3) • Sample Location 4 – B130 Screen Printing Studio (0.39 ppm, 0.927 µ/m3) • Sample Location 5 – Faculty Suite 133 (0.25 ppm, 0.594 µ/m3) • Sample Location 7 – Central Portion of 2nd Floor Main Atrium (0.030 ppm, 0.071

µ/m3) Toluene was detected in two locations (Sample Location 1 at 0.121 µ/m3 and Sample Location 5 at 0.452 µ/m3); however, neither level exceeded the California Office of Environmental Health Hazard Assessment (OEHHA) Acute Reference Exposure Level (REL) for Toluene of 37,000 µ/m3. Isopropyl Alcohol was detected in one location, Sample Location 2 – B109 Basement Etching Studio, at 0.246 µ/m3 (0.10 ppm). However, the level did not exceed the California OEHHA Acute REL for Isopropyl Alcohol of 3,200 µ/m3. Heptane was detected in two locations (Sample Location 4 at 0.011 ppm and Sample Location 5 at 0.012 ppm); however, neither level exceeded the NIOSH REL (85 PPM) or ACGIH TLV (400 PPM) respectively. It should be noted, acetone is commonly found in office products and art supplies. In general, it is common to find some level of chemical compounds, especially VOCs, in the indoor air from a variety of normal office and home products such as inks, toners, and cleaners. Respirable Dust and Respirable Silica No respirable dust levels above the laboratory detection limit or the 150 µ/m3 ambient exposure limit (reference EPA NAAQS) were found. Five of the eight respirable silica samples collected were below the laboratory detection. Three samples were found to


contain detectable levels of respirable silica at levels ranging from 7.4 µ/m3 (Sample Location 1 – Sub-Basement Wood Shop) to 18 µ/m3 (Sample Location 3 – B112 Student Work Spaces); however, all eight samples analyzed were below the 25 µg/m3 Action Level under OSHA. Conclusions Based on the results of the indoor air quality sampling conducted in August 2017, no indoor air quality concerns were identified. Respectfully, ECS MID-ATLANTIC, LLC Brian Wasserstein Christopher Chapman Environmental Project Manager Director of Industrial Hygiene Attachments: Results Tables Laboratory Results Limitations T:\_e-projects\2101-2200\2199-A IAQ\August 17 Summary Letter\August Results Summary Letterdocx

Corcoran Gallery IAQ

Sample Date: August 28, 2017

ECS Project No. 47:2199-A Analytical Sample Results

Sample

Location

Formaldehyde

ppb

Acetone*

ppb (ug/m3)

Toluene*

ppb (ug/m3)

Isopropanol *

ppb (ug/m3)

Heptane *

ppb (ug/m3)

1. Sub-Basement Wood

ShopND 0.059 (0.140) 0.032 (0.121) ND ND

2. B109 Basement

Etching StudioND ND ND 0.10 (0.246) ND

3. B112 Student Work

SpacesND 0.062 (0.147) ND ND ND

4. B130 Screen Printing

StudioND 0.39 (0.927) ND ND 0.011 (0.451)

5. 133 Faculty Suite ND 0.25 (0.594) 0.12 (0.452) ND 0.012 (0.492)

6. 1st Floor Main Atrium

South SideND ND ND ND ND

7. 2nd Floor Main Atrium

CentralND 0.030 (0.071) ND ND ND

8. Auditorium ND ND ND ND ND

Blank ND ND ND ND ND

85,000 ppb

(NIOSH REL)

* - Only Detected VOCs Included

Comparison Criteria13,000 ppm

(ATSDR)

37,000 ug/m3

(California OEHHA)

27 ppb

(USGBC)

3,200 ug/m3

(California OEHHA)

Key:

ppb = parts per billion

ug/m3 = micrograms per cubic meter

ND = Not Detected

ATSDR = Agency for Toxic Substance Disease Registry

OEHHA = Office of Environmental Health Hazard Assessment page 1 of 1



ECS Project No. 47:2199-A Direct Read Measurement Results

Sample

LocationTime Collected

Temperature

(°F)

Relative

Humidity (%)

CO2

(ppm)

CO

(ppm)

Respirable

Dust (ug/m3)

VOCs

(ppm)

Outdoors / Blank 9:03 AM 74.5 57.5 545 0.5 70 0.0

1. Sub-Basement Wood

Shop9:47 AM 77.8 53.2 504 2.1 128 0.0

2. B109 Basement

Etching Studio9:59 AM 75.0 56.0 437 0.5 37 0.0

3. B112 Student Work

Spaces10:09 AM 74.6 56.6 440 0.1 263 0.1

4. B130 Screen Printing

Studio10:17 AM 75.3 44.3 533 0.6 40 0.0

5. 133 Faculty Suite 10:28 AM 78.2 49.7 576 0.5 113 0.0

6. 1st Floor Main Atrium

South Side10:39 AM 78.1 50.0 473 0.0 23 0.0

7. 2nd Floor Main

Atrium Central10:54 AM 77.8 49.7 495 0.0 77 0.0

8. Auditorium 11:06 AM 78.6 50.2 522 0.0 121 0.0

OSHA OSHA NIOSH/OSHA EPA EPAGeneral

Guidance

68 - 76 20 - 60 1,000 9 150 1.0

Comparison Criteria

Key:

°F = degrees Fahrenheit ppm = parts per million

CO2 = carbon dioxide CO = carbon monoxide

N/A = Not Sampled LEL = lower explosive limit

VOCs= volatile organic compounds ND = None Detected page 1 of 1



ECS Project No. 47:2199-A

Sample

Location

Sample Volume

(Liters)

Respirable Dust

(mg/M3)

Crystalline Silica

Concentration

(µg/M3)

1. Sub-Basement Wood Shop 850.0 0.13 7.4

2. B109 Basement Etching Studio 837.5



ECS Project No. 47:2199-A

Sample

Location

Time

Collected

Temperature

(°F)

Relative

Humidity (%)

Total Fungal Spore

Concentration

(count/cubic meter)

Pre-Survey Outdoors 9:03 AM 74.5 57.5 17600

1. Sub-Basement Wood Shop 9:47 AM 77.8 53.2 549

2. B109 Basement Etching Studio 9:59 AM 75.0 56.0 4940

3. B112 Student Work Spaces 10:09 AM 74.6 56.6 *

4. B130 Screen Printing Studio 10:17 AM 75.3 44.3 470

5. 133 Faculty Suite 10:28 AM 78.2 49.7 313

6. 1st Floor Main Atrium South Side 10:39 AM 78.1 50.0 4860

7. 2nd Floor Main Atrium Central 10:54 AM 77.8 49.7 *

8. Auditorium 11:06 AM 78.6 50.2 *

Post-Survey Outdoors 11:14 AM 54.5 37.9 14700

Spore Trap Analysis Results

Key:

* - Overloaded

ND - None Detected

Page 1 of 1

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Project ID: CORCORAN GALLERY

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September 08, 2017

Lab Work Order: 2017090012

Exposure results are the average concentration for the period of time monitored. RptLmt = Reporting Limit. ND = None Detected at or above the reporting limit. The results relate only to the

items tested. Unless noted below, samples were received in acceptable condition, all applicable quality control were within method specifications, lab blanks were subtracted before a result was

reported, and any customer supplied field blanks were not subtracted from sample results. The molar volume at 25 C (24.45 L/mole) was used to calculate parts per million, ppm. Air

concentrations reported are based upon field sampling information provided by the customer. For assistance with the content of this report, please visit the Customer Support section of our web

site at http://www.assaytech.com or contact Technical Support at 1-800-833-1258. For details of significant method modifications go to www.assaytech.com/methmod.html.

Quantity Found Sample Concentration

Analytes RequestedDate

Sampled MediaLab

Code Media Lot / Serial # RptLmt Units Vol. (L)Time

(min) RptLmt UnitsClient Sample IDLab

Sample ID Total Found

17030018 ATOH 08/28/2017 01 571A 5B17 - MK6746

FORMALDEHYDE 0.10 UG 5.51 340 0.015 PPMND ND

Analyzed By: JZATCHOK Analyzed On: 9/7/2017 Approved By: BEWING Approved On: 9/8/2017

17030020 ATOH 08/28/2017 02 571A 7C17 - MM9067



17030021 ATOH 08/28/2017 03 571A 5B17 - MK5423



17030023 ATOH 08/28/2017 04 571A 7C17 - MM8821



17030024 ATOH 08/28/2017 05 571A 7C17 - MM9112



17030025 ATOH 08/28/2017 06 571A 7C17 - MM8089


AIHA Accredited Lab #101728 (ATCA)

AIHA Accredited Lab #100903 (ATOH)

1382 Stealth Street • Livermore, CA 94551 • (800) 833-1258 • FAX: (925) 461-7149

250 DeBartolo Place #2525 • Boardman, OH 44512 • (800) 833-1258 • FAX: (330) 758-1245

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Sampled MediaLab





17030026 ATOH 08/28/2017 07 571A 7C17 - MM6811



17030027 ATOH 08/28/2017 08 571A 7C17 - MM8800



17030028 ATOH 08/28/2017 BLANK 571A 2D17 -

FORMALDEHYDE 0.10 UGND


17030029 ATOH 08/28/2017 01 521B 4A17 - MJ2809

1,1,1-TRICHLOROETHANE 3.0 UG 19.5 340 0.028 PPMND ND

1-BUTANOL 1.0 UG 23.2 340 0.014 PPMND ND

4-PHENYL CYCLOHEXENE 3.0 UG 17.7 340 0.026 PPMND ND

ACETONE 2.0 UG 33.3 340 0.025 PPM4.64 0.059

BENZENE 0.40 UG 24.8 340 0.0050 PPMND ND

CHLOROFORM 3.0 UG 23.9 340 0.026 PPMND ND

CYCLOHEXANONE 0.60 UG 21.6 340 0.0069 PPMND ND

ETHYL ACETATE 2.0 UG 23.2 340 0.024 PPMND ND

ETHYL ALCOHOL 10 UG 27.0 340 0.20 PPMND ND

ETHYLBENZENE 0.50 UG 20.6 340 0.0056 PPMND ND

HEPTANE 0.50 UG 18.2 340 0.0067 PPMND ND

HEXANE 0.60 UG 19.7 340 0.0086 PPMND ND





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Sampled MediaLab




17030029 ATOH 08/28/2017 01 521B

ISOPROPYL ALCOHOL 1.0 UG 21.8 340 0.019 PPMND ND

METHYL ETHYL KETONE 0.80 UG 26.0 340 0.010 PPMND ND

METHYL ISOBUTYL KETONE 0.70 UG 21.4 340 0.0080 PPMND ND

METHYL METHACRYLATE 1.0 UG 20.4 340 0.012 PPMND ND

METHYLENE CHLORIDE 3.0 UG 23.5 340 0.037 PPMND ND

NAPHTHALENE 6.5 UG 18.9 340 0.066 PPMND ND

N-BUTYL ACETATE 0.90 UG 18.1 340 0.010 PPMND ND

PERCHLOROETHYLENE 2.0 UG 21.5 340 0.014 PPMND ND

STYRENE 0.50 UG 18.9 340 0.0062 PPMND ND

TETRAHYDROFURAN 0.80 UG 25.2 340 0.011 PPMND ND

TOLUENE 2.0 UG 22.5 340 0.024 PPM2.68 0.032

TRICHLOROETHYLENE 2.0 UG 23.6 340 0.016 PPMND ND

XYLENES 1.0 UG 19.6 340 0.012 PPMND ND

Analyzed By: MWAGNER Analyzed On: 9/5/2017 Approved By: KTAYLOR Approved On: 9/6/2017

17030030 ATOH 08/28/2017 02 521B 4A17 - MJ2703




ACETONE 2.0 UG 32.8 335 0.026 PPMND ND










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Sampled MediaLab




17030030 ATOH 08/28/2017 02 521B




ISOPROPYL ALCOHOL 1.0 UG 21.4 335 0.019 PPM5.38 0.10










TOLUENE 2.0 UG 22.2 335 0.024 PPMND ND




17030031 ATOH 08/28/2017 03 521B 4A17 - MJ2935




ACETONE 2.0 UG 32.4 331 0.026 PPM4.75 0.062







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Sampled MediaLab




17030031 ATOH 08/28/2017 03 521B





















17030032 ATOH 08/28/2017 04 521B 4A17 - MJ3942








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Sampled MediaLab




17030032 ATOH 08/28/2017 04 521B

ACETONE 2.0 UG 32.1 328 0.026 PPM29.7 0.39







HEPTANE 0.50 UG 17.6 328 0.0069 PPM0.800 0.011












TOLUENE 2.0 UG 21.7 328 0.024 PPM17.7 0.22




17030034 ATOH 08/28/2017 05 521B 2A17 - MG1843





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Sampled MediaLab




17030034 ATOH 08/28/2017 05 521B 2A17 - MG1843




ACETONE 2.0 UG 31.7 324 0.027 PPM19.2 0.25







HEPTANE 0.50 UG 17.4 324 0.0070 PPM0.870 0.012












TOLUENE 2.0 UG 21.4 324 0.025 PPM9.82 0.12






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Sampled MediaLab




17030034 ATOH 08/28/2017 05 521B



17030036 ATOH 08/28/2017 06 521B 2A17 - MG0724


























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Sampled MediaLab




17030036 ATOH 08/28/2017 06 521B






17030038 ATOH 08/28/2017 07 521B 4A17 - MJ3443




ACETONE 2.0 UG 30.2 309 0.028 PPM2.18 0.030



















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Sampled MediaLab




17030038 ATOH 08/28/2017 07 521B









17030040 ATOH 08/28/2017 08 521B 4A17 - MJ3230




















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Sampled MediaLab




17030040 ATOH 08/28/2017 08 521B












17030042 ATOH 08/28/2017 BLANK 521B 6F16 - LX2313

1,1,1-TRICHLOROETHANE 3.0 UGND

1-BUTANOL 1.0 UGND

4-PHENYL CYCLOHEXENE 3.0 UGND

ACETONE 2.0 UGND

BENZENE 0.40 UGND

CHLOROFORM 3.0 UGND

CYCLOHEXANONE 0.60 UGND

ETHYL ACETATE 2.0 UGND

ETHYL ALCOHOL 10 UGND

ETHYLBENZENE 0.50 UGND

HEPTANE 0.50 UGND

HEXANE 0.60 UGND





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Sampled MediaLab




17030042 ATOH 08/28/2017 BLANK 521B

ISOPROPYL ALCOHOL 1.0 UGND

METHYL ETHYL KETONE 0.80 UGND

METHYL ISOBUTYL KETONE 0.70 UGND

METHYL METHACRYLATE 1.0 UGND

METHYLENE CHLORIDE 3.0 UGND

NAPHTHALENE 6.5 UGND

N-BUTYL ACETATE 0.90 UGND

PERCHLOROETHYLENE 2.0 UGND

STYRENE 0.50 UGND

TETRAHYDROFURAN 0.80 UGND

TOLUENE 2.0 UGND

TRICHLOROETHYLENE 2.0 UGND

XYLENES 1.0 UGND






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Sampled MediaLab




Method References:

Exposure UnitsRegulatory AgencyMethod ReferenceAnalytes Requested TWA Limit STEL LimitTestCode

1,1,1-TRICHLOROETHANE MOD OSHA 7 OSHA PEL/ACGIH STEL PPM350 45071556A

1-BUTANOL MOD OSHA 7 OSHA PEL/NIOSH CEIL PPM100 5071363A

4-PHENYL CYCLOHEXENE MOD OSHA 74994165A

ACETONE MOD OSHA 7 OSHA PEL/ACGIH STEL PPM1000 50067641A

BENZENE MOD OSHA 7 OSHA PEL PPM1 571432A

CHLOROFORM MOD OSHA 7 ACGIH TLV/OSHA CEIL PPM10 5067663A

CYCLOHEXANONE MOD OSHA 7 OSHA PEL/ACGIH CEIL PPM50 50108941A

ETHYL ACETATE MOD OSHA 7 OSHA PEL PPM400141786A

ETHYL ALCOHOL MOD OSHA 7 OSHA PEL/ACGIH STEL PPM1000 100064175A

ETHYLBENZENE MOD OSHA 7 OSHA PEL/NIOSH PPM100 125100414A

FORMALDEHYDE MOD OSHA 1007 OSHA PEL / STEL PPM0.75 250000A

HEPTANE MOD OSHA 7 OSHA PEL/ACGIH STEL PPM500 500142825A

HEXANE MOD OSHA 7 OSHA PEL PPM500110543A

ISOPROPYL ALCOHOL MOD OSHA 7 OSHA PEL/ACGIH STEL PPM400 40067630A

METHYL ETHYL KETONE MOD OSHA 7 OSHA PEL PPM20078933A

METHYL ISOBUTYL KETONE MOD OSHA 7 OSHA PEL/ACGIH CEIL PPM100 75108101A

METHYL METHACRYLATE MOD OSHA 7 OSHA PEL/ACGIH STEL PPM100 10080626A

METHYLENE CHLORIDE MOD OSHA 7 OSHA PEL PPM25 12575092A

N-BUTYL ACETATE MOD OSHA 7 OSHA PEL/ACGIH STEL PPM150 200123864A

NAPHTHALENE MOD OSHA 7 OSHA PEL/NIOSH STEL PPM10 1591203A

PERCHLOROETHYLENE MOD OSHA 7 OSHA PEL/CEILING PPM100 200127184A

STYRENE MOD OSHA 7 OSHA PEL/CEILING PPM100 200100425A

TETRAHYDROFURAN MOD OSHA 7 OSHA PEL/ACGIH CEIL PPM200 250109999A

TOLUENE MOD OSHA 7 OSHA PEL PPM200108883A

TRICHLOROETHYLENE MOD OSHA 7 OSHA PEL/CEILING PPM100 20079016A

XYLENES MOD OSHA 7 OSHA PEL/ACGIH STEL PPM100 1501330207A





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(703) 471-8400

Customer:

Attention:

Fax No.:

Address:

Phone No.: PO No.:


47- 2199-A

Customer No.:

Received Date:

Date Reported:

23002

September 01, 2017

September 08, 2017




Sampled MediaLab




Applicable OSHA PELs, ACGIH TLVs, or NIOSH RELS have been included in this lab report for guidance, but may not be sufficient for regulatory compliance . Clients should be aware

that more stringent international, state, local, or organizational exposure limits may supersede the limits included with this report. Visit www.OSHA.gov/dsg/annotated-pels for detailed

information on exposure limits and OSHA policies.

S. Green - Laboratory Director K. Taylor - Ohio Supervisor





Page 14 of 14

Analysis of Respirable Dust and Airborne Crystalline Silica

By X-Ray Diffraction (XRD) NIOSH 0600 / Modified from NIOSH Method 7500 & OSHA ID-142

Client: ECS Capital Services, PLLC Attn: Brain Wasserstein Lab Order ID: 1718784 655 15th Street NW Ste 4 Date Received: 09/01/2017 Washington, DC 20005 Date Reported: 09/08/2017 Project: Corcoran Gallery/47:2199-A Page: 1 of 3

Ired Gulley Analyst Lab Director

Unless otherwise noted blank sample correction was not performed on analytical results. Scientific Analytical Institute participates in the AIHA IHPAT program. IHPAT Laboratory ID: 173190. This report relates only to the samples tested and may not be reproduced, except in full, without the written approval of SAI. Analytical uncertainty available upon request. Time-weighted average (TWA) calculations are based on customer supplied data and valid only for samples included in the specified TWA group

Scientific Analytical Institute, Inc. 4604 Dundas Dr. Greensboro, NC 27407 (336) 292-3888

M-F-009 EXP: 2/27/2020

Sample ID Description Air Volume

(m3) Analyte Analyte Detected

LOD (mg Analyte) mg Analyte

CONCENTRATION mg/m3

Lab Sample ID Lab Notes

01 Sub-Basement Wood Shop

0.850

Dust N/A 0.05 0.11 0.13

Alpha Quartz Detected 0.005 0.006 0.0074

1718784XDA_1

Cristobalite BDL 0.005







M-F-009 EXP: 2/27/2020




CONCENTRATION mg/m3


04 B130b – Screen Printing Studio

0.820

Dust N/A 0.05 0.13 0.16

Alpha Quartz Detected 0.005 0.013 0.016

1718784XDA_4

Cristobalite BDL 0.005







M-F-009 EXP: 2/27/2020




CONCENTRATION mg/m3


07 Main Atrium – Central 2nd Floor

0.773

Dust N/A 0.05

Scientific Analytical Institute, Inc. 4604 Dundas Drive Greensboro, Ne 27407

Phone: 336.292.3888 Fax: 336.292.3313 [email protected]

Lab Use Only /1 JK71yLab Order ID: Client Code: ______

SAME IX]

Contact:

Address:

Contact: Brian Wasserstein

Phone 0: 571-233-6454 Fax 0:

90 Min. 0 48 HOurs 0 3 Hours 0 72 Hours 0 6 Hours 0 96 Hours !Xl 12 Hours 0 120Hours 0 24 Hours 0 144+Hours 0 A

TATs not

Name/Number: Corcoran Gallery f 47:2199-A

08 Auditorium 106

0 0 D. 0 0 0 0 0 0

A-F-OIS -01 EXP 12-1-13

mailto:[email protected]

1718786Lab Order ID:

Corcoran Gallery / 47:2199-AProject:

09/01/2017Date Received:

09/07/2017Date Reported:

Direct Exam: Spore Trap AnalysisSAI Method B-SOP-003

Brian WassersteinAttn:

1718786_STAAnalysis ID:

Client: ECS Capitol Services, PLLC655 15th Street NWWashington, DC 20005

Sample ID

Lab Sample ID

Description

Lab Notes

Volume(L)

Analytical Sensitivity(counts/m³)

Ascospores

Aspergillus/ Penicillium-like

Basidiospores

Cercospora-like

Cladosporium

Curvularia

Myxomycete/ Rust/ Smut-like

Pithomyces

TOTAL

Non-Cellulosic Fibers

Hyphal Fragments

Insect Parts

Pollen

Skin Cell % of Total Debris

Total Debris in Background

IDENTIFICATIONRaw

CountConcentration

(counts/m³)% OfTotal

01

1718786_STA_001

Sub-Basement Wood Shop

75

78

5 392 71.4%

2 157 28.6%

7 549 100.%

6 470. -

- - -

- - -

- - -

40-60%

80-100%

RawCount

Concentration(counts/m³)

% OfTotal

02

1718786_STA_002

B109-Etching Studio

75

78

51 4000 81.0%

6 470. 9.52%

5 392 7.94%

1 78.0 1.59%

63 4940 100.%

- - -

- - -

- - -

- - -

60-80%

60-80%

RawCount


% OfTotal

03

1718786_STA_003

B112-Student Work Space Studio

Overloaded*

75

78

* * *

* * *

* * *

* * *

- - -

- - -

- - -

20-40%

100%

EXTERIOR

AVERAGE

N/A

N/A

N/A

N/A

RawCount


% OfTotal

146 11400 64.3%

14 1060 6.20%

45 3530 19.8%

2 118 0.900%

16 1220 7.00%

2 118 0.900%

2 157 0.900%

227 17600 100.%

- - -

4 275 -

- - -

- - -

N/A

N/A

Disclaimer: This report relates only to the samples tested and may not be reproduced, except in full, without the written approval of SAI. Unless otherwise noted blank sample correction was not performed on analytical results. Scientific Analytical Institute participates in theAIHA EMPAT program for fungi. EMPAT Laboratory ID: 173190. Reporting Limit equals Analytical Sensitivity.

Page 1 of 4

Approved SignatoryAnalyst


Palmer Hines (10)

*Overloaded with debris. Asterisks (*) indicate observed presence and do not reflect actual counts.

B-F-028 r15 1/15/2018









Sample ID

Lab Sample ID

Description

Lab Notes

Volume(L)


Ascospores


Basidiospores

Cercospora-like

Cladosporium

Curvularia


Pithomyces

TOTAL


Hyphal Fragments

Insect Parts

Pollen



IDENTIFICATIONRaw

CountConcentration


04

1718786_STA_004

B130b - Screen Printing Studio

75

78

4 313 66.7%

2 157 33.3%

6 470. 100.%

11 862 -

- - -

- - -

- - -

40-60%

80-100%

RawCount


% OfTotal

05

1718786_STA_005

133- Faculty Suite

75

78

3 235 75.0%

1 78.0 25.0%

4 313 100.%

6 470. -

- - -

- - -

- - -

20-40%

80-100%

RawCount


% OfTotal

06

1718786_STA_006

Main Atrium - 1st Floor

75

78

18 1410 29.0%

35 2740 56.5%

6 470. 9.68%

3 235 4.84%

62 4860 100.%

- - -

- - -

- - -

- - -

60-80%

60-80%

EXTERIOR

AVERAGE

N/A

N/A

N/A

N/A

RawCount


% OfTotal

146 11400 64.3%

14 1060 6.20%

45 3530 19.8%

2 118 0.900%

16 1220 7.00%

2 118 0.900%

2 157 0.900%

227 17600 100.%

- - -

4 275 -

- - -

- - -

N/A

N/A


Page 2 of 4



Palmer Hines (10)


B-F-028 r15 1/15/2018









Sample ID

Lab Sample ID

Description

Lab Notes

Volume(L)


Ascospores


Basidiospores

Cercospora-like

Cladosporium

Curvularia


Pithomyces

TOTAL


Hyphal Fragments

Insect Parts

Pollen



IDENTIFICATIONRaw

CountConcentration


07

1718786_STA_007

Main Atrium - Central 2nd Floor

Overloaded*

75

78

* * *

* * *

* * *

* * *

* * *

* * *

- - -

- - -

20-40%

100%

RawCount


% OfTotal

08

1718786_STA_008

Auditorium

Overloaded*

75

78

* * *

* * *

* * *

* * *

* * *

* * *

- - -

- - -

- - -

20-40%

100%

RawCount


% OfTotal

09

1718786_STA_009

Pre-Survey Outdoor

75

78

205 16100 78.2%

39 3060 14.9%

1 78.0 0.382%

17 1330 6.49%

262 20500 100.%

- - -

2 157 -

- - -

- - -

0-20%

40-60%

EXTERIOR

AVERAGE

N/A

N/A

N/A

N/A

RawCount


% OfTotal

146 11400 64.3%

14 1060 6.20%

45 3530 19.8%

2 118 0.900%

16 1220 7.00%

2 118 0.900%

2 157 0.900%

227 17600 100.%

- - -

4 275 -

- - -

- - -

N/A

N/A


Page 3 of 4



Palmer Hines (10)


B-F-028 r15 1/15/2018









Sample ID

Lab Sample ID

Description

Lab Notes

Volume(L)


Ascospores


Basidiospores

Cercospora-like

Cladosporium

Curvularia


Pithomyces

TOTAL


Hyphal Fragments

Insect Parts

Pollen



IDENTIFICATIONRaw

CountConcentration


10

1718786_STA_010

Post-Survey Outdoor

75

78

87 6820 46.3%

27 2120 14.4%

51 4000 27.1%

2 157 1.06%

14 1100 7.45%

3 235 1.60%

4 313 2.13%

188 14700 100.%

- - -

5 392 -

- - -

- - -

0-20%

80-100%

EXTERIOR

AVERAGE

N/A

N/A

N/A

N/A

RawCount


% OfTotal

146 11400 64.3%

14 1060 6.20%

45 3530 19.8%

2 118 0.900%

16 1220 7.00%

2 118 0.900%

2 157 0.900%

227 17600 100.%

- - -

4 275 -

- - -

- - -

N/A

N/A


Page 4 of 4



Palmer Hines (10)


B-F-028 r15 1/15/2018

Scientific Analytical Institute 4604 Dundas Dr. Greensboro, He 27407 Phone: 336.292.3888 Fax: 336.292.3313

[email protected]

Lab Use Only Lab Order ID: Client Code: ------

Company: ECS Mid-Atlantic, LLC Contact: Brian Wasserstein

! Address: 655 15th Street NW, Suite 310 Phone D: ;'71-233-6454 DC 20005 FaxD:

Emaill!]:

Company: SAME 90 Min. D 48 Hours Contact: 3 Hours D 72 Hours Address: 6 Hours 0 96 Hours

D 0 I!l

12 Hours 0 120Hours D 4 Hours 0 144tIours D

D o

Direct Exam Swab (DES) D Direct Exam Bulk (DEB) D Fungal Culture Air (FCA) D Fungal Culture Swab (FCS)

Fungal Culture Bulk (FCB)

Bacteria Culture Air (BCA) D Bacteria Culture Bulk (BCB) 0 Bacteria Culture Swab (BCS) 0

o D

Project Name/Number: Corcoran Gallery / 47:2199-A

02

04 05

07 08

09 10

Sub-Basement Wood Shop B109

BIl2 - 'tllt1" B130b Screen Printing Studio

-1 '''LUlL'' Suite

Maint Atrium Central 2nd Floor

Post-Survey Outdoor

mailto:[email protected]

LIMITATIONS Information contained herein is based on information available to and data gathered by ECS during the performance of this project. Conclusions and recommendations pertaining to environmental conditions at the subject site are limited to the conditions observed at the time this study was undertaken. This survey is not intended to represent an exhaustive research of every potential hazard or condition that may exist, nor does it claim to represent indoor conditions or events that arise after the survey. This report has been prepared in accordance with generally accepted environmental practices. No other warranty, expressed or implied, is made. Our conclusions and findings are based, in part, upon information provided to us by others and our site observations. We have not verified the completeness or accuracy of the information provided by others. Our observations and findings are based upon conditions readily visible at the site at the time of our site visit, analytical tests, and upon current accepted industry standards. The scope of services performed was limited to those requested by the Client and does not constitute a full IAQ assessment of the site. No other warranty, expressed or implied, is made with regard to the conclusions and recommendations presented within this report. This report is provided for the exclusive use of the Client or their agents. The scope of services performed in the execution of this evaluation may not be appropriate to satisfy the needs of other users. This report is not intended to be used or relied upon in connection with other projects or by other unidentified third parties. The use of this report or the findings, conclusions, or recommendations by any undesignated third party or parties will be at such party’s sole risk and ECS disclaims liability for any such third party’s use or reliance.

Documents

Corcoran Gallery of Art...Corcoran Gallery of Art ECS Project 47:2199-A September 22, 2017 Page 5 contain detectable levels of respirable silica at levels ranging from 7.4 µ/m 3 (Sample