16022_CHT Facility_Pre-Occupancy IAR 2016_11_16

Via Email

November 16, 2016

NC DEQ
Brownfields Program
1646 Mail Service Center
Raleigh, North Carolina 27699-1646

Attn: Mr. Carolyn Minnich

Re: Pre-Occupancy Indoor Air Sampling
CHT Brownfields Site
5046 Old Pineville Rd.
Charlotte, NC
DEQ Brownfields Project No. 16022-12-060
H&H Job No. FDP-035

Dear Carolyn:

1.0 Introduction

On behalf of Old Pineville Investments, LLC, Hart & Hickman, PC (H&H) is submitting this
report documenting Pre-Occupancy Indoor Air Sampling for the CHT Brownfields site located at
5046 Old Pineville Rd in Charlotte. A site location map is included as Figure 1. The purpose of
the indoor air sampling was to satisfy Paragraph 15.d. of the Brownfields agreement which states
that the Prospective Developer shall conduct pre-occupancy indoor air sampling in the location of
previous soil vapor sample SSVP-3 for a minimum of one additional sampling event. H&H
understands that Old Pineville Investments, LLC has recently negotiated a lease for the space
where SSVP-3 was formerly located and that occupancy of that space will occur before the end of
2016.

A brief description of previous vapor intrusion assessment is provided in Section 2.0, and the
methods and results of the indoor air sampling event are provided in Sections 3.0 and 4.0.
Ms. Carolyn Minnich
November 16, 2016
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2.0 Background Information

H&H previously collected six sub-slab soil vapor samples at the site in January 2014. The results
of the laboratory analysis indicated that only one sample, SSVP-3, contained compound
concentrations above DEQ non-residential screening levels. Based upon the results of analysis of
the sub-slab samples, H&H collected four indoor air samples from the southern portion of the
building in the vicinity of SSVP-3. Sub-slab and indoor air sample locations are shown on Figure
2. The indoor air samples were analyzed for the volatile organic compounds (VOCs)
tetrachloroethene (PCE), trichloroethene (TCE), cis-1,2-dichloroethene (cis-1,2-DCE), trans-1,2-
dichloroethene (trans-1,2-DCE), 1,1-dichloroethene (1,1-DCE), vinyl chloride (VC),
ethylbenzene, and xylenes. The VOCs selected for analysis included compounds detected above
screening levels in the sub-slab samples and their respective daughter products.

Results of the laboratory analysis of the indoor air samples did not indicate the presence of
compounds above Division of Waste Management (DWM) Non-Residential Indoor Air Screening
Levels (IASLs). The sub-slab soil vapor and indoor air samples were collected in accordance with
the approved work plan for the activities, and DEQ concurred with the indoor air sample analytes
prior to collection.

As part of the Brownfields agreement process and following the vapor intrusion assessment
activities described above, DEQ raised concerns about the elevated detections limits in sub-slab
sample SSVP-3 (due to the presence of elevated levels of PCE, TCE, ethylbenzene and xylenes),
and noted that the detection limits for some compounds (benzyl chloride, 1,3-butadiene,
chloroform, naphthalene, 1,2,4-trimethylbenzene, and 1,3,5-trimethylbenzene) were above the
DEQ non-residential soil vapor screening levels and were not analyzed for in the indoor air
samples. H&H subsequently requested that the laboratory report these compounds in a revised
laboratory report for the indoor air sample. The revised report indicated that none of these
compounds were detected above DEQ non-residential indoor air screening levels. However, DEQ
noted that the analysis for naphthalene did not meet some of the laboratory performance criteria
Ms. Carolyn Minnich
November 16, 2016
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S:\AAA-Master Projects\ForSite Development Partners (FDP)\FDP-035 cht old pineville rd\Post Agreement IA Sampling\Final to Client\Pre-Occupancy IA Report.docx
and recommended that the naphthalene indoor air data in the area of sub-slab soil vapor sample
SSVP-3 be confirmed. Therefore, Paragraph 15.d. of the Brownfields Agreement includes pre-
occupancy indoor air sampling in the location of previous sample SSVP-3. In accordance with the
Brownfields Agreement, H&H submitted a work plan for pre-occupancy indoor air sampling dated
September 1, 2016, and the work plan was approved in an email dated September 6, 2016. The
methods of the pre-occupancy indoor air sampling are provided in the following section.

3.0 Pre-Occupancy Indoor Air Sampling

3.1 Indoor Air Sampling Activities

On October 6, 2016, H&H collected two indoor air samples (IAS-1 and IAS-2) in the vicinity of
previous sub-slab soil vapor sample location SSVP-3. Indoor air sample locations are depicted on
Figure 2. The location where the samples were collected is an unconditioned, vacant warehouse
space.

The indoor air samples were collected with 6-liter Summa canisters connected to an airflow
regulator and a 3 ft long sampling cane. The typical height of a Summa canister with an attached
airflow regulator is approximately 2 ft above grade and, with the additional 3-foot long sampling
cane, the sample intake point is approximately 5 ft above grade (typical breathing zone height).

Prior to sample collection, H&H measured the wind direction and selected an exterior background
location (BAS-1) located upwind of the site building. The location of the background sample is
also shown on Figure 2. The background location Summa canister was also fitted with a regulator
and sampling cane so that the sample height is approximately 5 ft above ground level.

Following set-up of the background sample canister, the indoor and background sample valves
were opened and the samples were collected over an approximate 8-hour period. As part of the
sampling effort, H&H measured the air pressure differential between outside air and the interior
Ms. Carolyn Minnich
November 16, 2016
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sample locations near the start, middle, and end of the 8-hour sampling period. In addition, exterior
wind speed, exterior wind direction, and indoor/outdoor temperature were recorded near the start,
middle, and end of the sampling period.

The differential pressure and weather data recorded during the indoor air sampling activities is
included on Table 1. As indicated on Table 1, outdoor temperatures were in the range of 62 oF to
75 oF during the sample event, and wind was generally out of the north, with wind speed ranging
from 7 to 11 mph. The results of differential pressure measurements indicated that there was no
differential pressure between outside air and the building. No precipitation occurred during the
sampling event.

Once the indoor air samples were collected, the canisters were shipped to Con-Test Analytical
Laboratory for analysis of VOCs by EPA Method TO-15. In accordance with the approved work
plan, the indoor air samples were analyzed for the following compounds: PCE, TCE, cis-1,2-DCE,
trans-1,2-DCE, 1,1-DCE, vinyl chloride, ethylbenzene, xylenes, benzyl chloride, 1,3-butadiene,
chloroform, naphthalene, 1,2,4-trimethylbenzene, and 1,3,5-trimethylbenzene. Detection limits
below DWM Non-Residential IASLs were attained for each compound.

3.2 Indoor Air Sampling Results

A summary of the indoor and background air sample results is provided in Table 2, and the
laboratory analytical data are provided in Appendix A. The laboratory analytical results indicate
that xylenes were detected in indoor air samples IAS-1 (0.56 µg/m3) and IAS-2 (0.39 µg/m3) at
concentrations below the DWM Non-Residential IASL of 87.6 µg/m3. Xylenes were also detected
in background air sample BAS-1 (0.57 µg/m3) at a similar concentration. This data indicates that
the concentration of xylene detected in the indoor air samples is from an exterior background
source and not from vapor intrusion from underlying soil and/or groundwater impacts. No other
analyzed compounds, including naphthalene, were detected above laboratory reporting limits in
the samples.
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Table 2 (Page 1 of 1)Hart & Hickman, PC
Table 2 (Page 1 of 1)
Summary of Indoor and Background Air Analytical Data
Former CHT Facility
Charlotte, North Carolina
H&H Job No. FDP-035
S:\AAA-Master Projects\ForSite Development Partners (FDP)\FDP-035 cht old pineville rd\Post Agreement IA Sampling\Table.xlsx
Table 2 (Page 1 of 1)
Hart & Hickman, PC
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IA-1 Vacant Warehouse 12/12/14 TO-15 <0.18 <0.078 <0.17 <0.14 <0.14 <0.14 0.26 <0.18 1.6 0.32 <0.38 <0.38 <0.090 1.34
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IA-3 Vacant Warehouse 12/12/14 TO-15 <0.18 0.30 <0.17 <0.14 <0.14 <0.14 0.18 <0.18 1.3 <0.19 0.28 <0.17 <0.090 0.97
IA-4 Vacant Warehouse 12/12/14 TO-15 <0.18 0.25 <0.17 <0.14 <0.14 <0.14 0.23 <0.18 0.58 <0.19 0.28 <0.17 <0.090 1.13
IAS-1 Vacant Warehouse 10/06/16 TO-15 <0.18 <0.078 <0.17 <0.14 <0.14 <0.14 <0.15 <0.18 <0.24 <0.19 <0.17 <0.17 <0.090 0.56
IAS-2 Vacant Warehouse 10/06/16 TO-15 <0.18 <0.078 <0.17 <0.14 <0.14 <0.14 <0.15 <0.18 <0.24 <0.19 <0.17 <0.17 <0.090 0.39
BAS-1 Outdoor/Background 12/12/14 TO-15 <0.18 0.26 <0.17 <0.14 <0.14 <0.14 0.34 <0.18 0.35 <0.19 0.30 <0.17 <0.090 1.62
BAS-1 Outdoor/Background 10/06/16 TO-15 <0.18 <0.078 <0.17 <0.14 <0.14 <0.14 <0.15 <0.18 <0.24 <0.19 <0.17 <0.17 <0.090 0.57
0.250 0.409 0.533 175 NE NE 4.91 0.361 35.0 1.75 6.13 NE 2.79 87.6
Notes
Bold indicates concentration exceeds DWM Non-Residential Indoor Air Screening Level (October 2016 table)
Blue highlighting indicates sample collected during pre-occupancy assessment
NA = Not Analyzed
NE = Not Established
µg/m3 = micrograms per cubic meter
LICR = Lifetime Incremental Cancer Risk
HI = Non-carcinogenic hazard index
µg/m3
DWM Non-Residential Indoor Air Screening Level (LICR = 1 x 10-6 and HI = 0.2)
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U.S.G.S. QUADRANGLE MAP
QUADRANGLE
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Charlotte East, NC 2013
Charlotte West, NC 2013
TITLE
PROJECT
SITE LOCATION MAP
Former CHT Facility
5046 Old Pineville Road
CHARLOTTE, NORTH CAROLINA
DATE:
JOB NO:
REVISION NO:
FIGURE:
1-6-2015 0
1 FDP-035
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S:\AAA-Master Projects\ForSite Development Partners (FDP)\FDP-035 cht old pineville rd\Post Agreement IA Sampling\Figures\FIG 2.dwg, FIG 1, 10/26/2016 3:57:05 PM,

Appendix A
Laboratory Analytical Data
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
October 13, 2016
John Lopez
Hart & Hickman - Charlotte, NC
2923 South Tryon Street, Suite 100
Charlotte, NC 28203
Project Location: CHT Brownfields Site
Client Job Number:
Project Number: FDP-035
Laboratory Work Order Number: 16J0351
Enclosed are results of analyses for samples received by the laboratory on October 6, 2016. If you have any questions
concerning this report, please feel free to contact me.
Sincerely,
Lisa A. Worthington
Project Manager
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ANALYTICAL SUMMARY
10/13/2016Hart & Hickman - Charlotte, NC
2923 South Tryon Street, Suite 100
Charlotte, NC 28203
ATTN: John Lopez
FDP-035
16J0351
The results of analyses performed on the following samples submitted to the CON-TEST Analytical Laboratory are found in this report.
PROJECT LOCATION:
PURCHASE ORDER NUMBER:
PROJECT NUMBER:
REPORT DATE:
WORK ORDER NUMBER:
FIELD SAMPLE #LAB ID:MATRIX TESTSAMPLE DESCRIPTION SUB LAB
CHT Brownfields Site
BAS-1 16J0351-01 Ambient Air EPA TO-15
IAS-1 16J0351-02 Indoor air EPA TO-15
IAS-2 16J0351-03 Indoor air EPA TO-15
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39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
CASE NARRATIVE SUMMARY
All reported results are within defined laboratory quality control objectives unless listed below or otherwise qualified in this report.
EPA TO-15
Qualifications:
Continuing calibration did not meet method specifications and was biased on the high side for this compound. Increased uncertainty is
associated with the reported value which is likely to be biased on the high side.
Analyte & Samples(s) Qualified:
Benzyl chloride
B160571-BS1
The results of analyses reported only relate to samples submitted to the Con-Test Analytical Laboratory for testing.
I certify that the analyses listed above, unless specifically listed as subcontracted, if any, were performed under my direction according to the approved methodologies listed
in this document, and that based upon my inquiry of those individuals immediately responsible for obtaining the information, the material contained in this report is, to the
best of my knowledge and belief, accurate and complete.
Lisa A. Worthington
Project Manager
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39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
ANALYTICAL RESULTS
Project Location: CHT Brownfields Site
Date Received: 10/6/2016
Work Order: 16J0351Sample Description/Location:
Field Sample #: BAS-1
Sample ID: 16J0351-01
Sample Matrix: Ambient Air
Initial Vacuum(in Hg): -30
Final Vacuum(in Hg): -6
Receipt Vacuum(in Hg): -7.2
Sampled: 10/6/2016 16:05
Canister ID: 1181
Flow Controller ID: 3010
Sub Description/Location:
Canister Size: 6 liter
Flow Controller Type: Fixed-Orifice
Flow Controller Calibration
RPD Pre and Post-Sampling:
Sample Type: 8 hr
RLResults AnalystAnalyzedDilutionFlagRLResultsAnalyte
Date/Time
EPA TO-15
ppbv ug/m3
MDL
Benzyl chloride ND 0.035 10/9/16 21:00 CMRND0.7020.180.0068
1,3-Butadiene ND 0.035 10/9/16 21:00 CMRND0.7020.0780.018
Chloroform ND 0.035 10/9/16 21:00 CMRND0.7020.170.0082
1,1-Dichloroethylene ND 0.035 10/9/16 21:00 CMRND0.7020.140.0086
cis-1,2-Dichloroethylene ND 0.035 10/9/16 21:00 CMRND0.7020.140.013
trans-1,2-Dichloroethylene ND 0.035 10/9/16 21:00 CMRND0.7020.140.0093
Ethylbenzene ND 0.035 10/9/16 21:00 CMRND0.7020.150.0097
Naphthalene ND 0.035 10/9/16 21:00 CMRND0.7020.180.019
Tetrachloroethylene ND 0.035 10/9/16 21:00 CMRND0.7020.240.010
Trichloroethylene ND 0.035 10/9/16 21:00 CMRND0.7020.190.010
1,2,4-Trimethylbenzene ND 0.035 10/9/16 21:00 CMRND0.7020.170.0086
1,3,5-Trimethylbenzene ND 0.035 10/9/16 21:00 CMRND0.7020.170.0070
Vinyl Chloride ND 0.035 10/9/16 21:00 CMRND0.7020.0900.015
m&p-Xylene 0.093 0.070 10/9/16 21:00 CMR0.40 0.7020.300.018
o-Xylene 0.039 0.035 10/9/16 21:00 CMR0.17 0.7020.150.010
Surrogates % Recovery % REC Limits
4-Bromofluorobenzene (1)95.0 10/9/16 21:0070-130
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ANALYTICAL RESULTS
Project Location: CHT Brownfields Site
Date Received: 10/6/2016
Work Order: 16J0351Sample Description/Location:
Field Sample #: IAS-1
Sample ID: 16J0351-02
Sample Matrix: Indoor air
Initial Vacuum(in Hg): -29.5
Final Vacuum(in Hg): -6
Receipt Vacuum(in Hg): -7.2
Sampled: 10/6/2016 16:23
Canister ID: 2074
Flow Controller ID: 3174
Sub Description/Location:
Canister Size: 6 liter
Flow Controller Type: Fixed-Orifice
Flow Controller Calibration
RPD Pre and Post-Sampling:
Sample Type: 8 hr
RLResults AnalystAnalyzedDilutionFlagRLResultsAnalyte
Date/Time
EPA TO-15
ppbv ug/m3
MDL
Benzyl chloride ND 0.035 10/9/16 21:47 CMRND0.7020.180.0068
1,3-Butadiene ND 0.035 10/9/16 21:47 CMRND0.7020.0780.018
Chloroform ND 0.035 10/9/16 21:47 CMRND0.7020.170.0082
1,1-Dichloroethylene ND 0.035 10/9/16 21:47 CMRND0.7020.140.0086
cis-1,2-Dichloroethylene ND 0.035 10/9/16 21:47 CMRND0.7020.140.013
trans-1,2-Dichloroethylene ND 0.035 10/9/16 21:47 CMRND0.7020.140.0093
Ethylbenzene ND 0.035 10/9/16 21:47 CMRND0.7020.150.0097
Naphthalene ND 0.035 10/9/16 21:47 CMRND0.7020.180.019
Tetrachloroethylene ND 0.035 10/9/16 21:47 CMRND0.7020.240.010
Trichloroethylene ND 0.035 10/9/16 21:47 CMRND0.7020.190.010
1,2,4-Trimethylbenzene ND 0.035 10/9/16 21:47 CMRND0.7020.170.0086
1,3,5-Trimethylbenzene ND 0.035 10/9/16 21:47 CMRND0.7020.170.0070
Vinyl Chloride ND 0.035 10/9/16 21:47 CMRND0.7020.0900.015
m&p-Xylene 0.093 0.070 10/9/16 21:47 CMR0.40 0.7020.300.018
o-Xylene 0.038 0.035 10/9/16 21:47 CMR0.16 0.7020.150.010
Surrogates % Recovery % REC Limits
4-Bromofluorobenzene (1)94.5 10/9/16 21:4770-130
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ANALYTICAL RESULTS
Project Location: CHT Brownfields Site
Date Received: 10/6/2016
Work Order: 16J0351Sample Description/Location:
Field Sample #: IAS-2
Sample ID: 16J0351-03
Sample Matrix: Indoor air
Initial Vacuum(in Hg): -30
Final Vacuum(in Hg): -7.5
Receipt Vacuum(in Hg): -7.6
Sampled: 10/6/2016 16:24
Canister ID: 2068
Flow Controller ID: 3173
Sub Description/Location:
Canister Size: 6 liter
Flow Controller Type: Fixed-Orifice
Flow Controller Calibration
RPD Pre and Post-Sampling:
Sample Type: 8 hr
RLResults AnalystAnalyzedDilutionFlagRLResultsAnalyte
Date/Time
EPA TO-15
ppbv ug/m3
MDL
Benzyl chloride ND 0.035 10/9/16 22:35 CMRND0.7020.180.0068
1,3-Butadiene ND 0.035 10/9/16 22:35 CMRND0.7020.0780.018
Chloroform ND 0.035 10/9/16 22:35 CMRND0.7020.170.0082
1,1-Dichloroethylene ND 0.035 10/9/16 22:35 CMRND0.7020.140.0086
cis-1,2-Dichloroethylene ND 0.035 10/9/16 22:35 CMRND0.7020.140.013
trans-1,2-Dichloroethylene ND 0.035 10/9/16 22:35 CMRND0.7020.140.0093
Ethylbenzene ND 0.035 10/9/16 22:35 CMRND0.7020.150.0097
Naphthalene ND 0.035 10/9/16 22:35 CMRND0.7020.180.019
Tetrachloroethylene ND 0.035 10/9/16 22:35 CMRND0.7020.240.010
Trichloroethylene ND 0.035 10/9/16 22:35 CMRND0.7020.190.010
1,2,4-Trimethylbenzene ND 0.035 10/9/16 22:35 CMRND0.7020.170.0086
1,3,5-Trimethylbenzene ND 0.035 10/9/16 22:35 CMRND0.7020.170.0070
Vinyl Chloride ND 0.035 10/9/16 22:35 CMRND0.7020.0900.015
m&p-Xylene 0.090 0.070 10/9/16 22:35 CMR0.39 0.7020.300.018
o-Xylene ND 0.035 10/9/16 22:35 CMRND0.7020.150.010
Surrogates % Recovery % REC Limits
4-Bromofluorobenzene (1)94.8 10/9/16 22:3570-130
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Sample Extraction Data
Prep Method: TO-15 Prep-EPA TO-15
Lab Number [Field ID]Batch Date
Pressure
Dilution
Pre
Dilution
Pre-Dil
Initial
mL
Pre-Dil
Final
mL
Default
Injection
mL
Actual
Injection
mL
16J0351-01 [BAS-1]B160571 1.5 1 N/A 1000 400 855 10/09/16
16J0351-02 [IAS-1]B160571 1.5 1 N/A 1000 400 855 10/09/16
16J0351-03 [IAS-2]B160571 1.5 1 N/A 1000 400 855 10/09/16
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ug/m3 Spike Level
Result
Source
%REC
%REC
Limits RPD
RPD
Limit Flag Analyte
Air Toxics by EPA Compendium Methods - Quality Control
QUALITY CONTROL
RL
ppbv
Results RL Results ppbv
Batch B160571 - TO-15 Prep
Blank (B160571-BLK1)Prepared & Analyzed: 10/09/16
0.035NDBenzyl chloride
0.035ND1,3-Butadiene
0.035NDChloroform
0.035ND1,1-Dichloroethylene
0.035NDcis-1,2-Dichloroethylene
0.035NDtrans-1,2-Dichloroethylene
0.035NDEthylbenzene
0.035NDNaphthalene
0.035NDTetrachloroethylene
0.035NDTrichloroethylene
0.035ND1,2,4-Trimethylbenzene
0.035ND1,3,5-Trimethylbenzene
0.035NDVinyl Chloride
0.070NDm&p-Xylene
0.035NDo-Xylene
8.00 70-130Surrogate: 4-Bromofluorobenzene (1)95.47.63
LCS (B160571-BS1)Prepared & Analyzed: 10/09/16
5.00 V-0670-1301256.26Benzyl chloride
5.00 70-1301206.021,3-Butadiene
5.00 70-13085.54.28Chloroform
5.00 70-1301035.161,1-Dichloroethylene
5.00 70-13080.94.04cis-1,2-Dichloroethylene
5.00 70-13083.74.18trans-1,2-Dichloroethylene
5.00 70-13092.64.63Ethylbenzene
5.00 70-13096.34.82Naphthalene
5.00 70-13096.34.82Tetrachloroethylene
5.00 70-13081.64.08Trichloroethylene
5.00 70-1301055.241,2,4-Trimethylbenzene
5.00 70-1301035.141,3,5-Trimethylbenzene
5.00 70-1301246.21Vinyl Chloride
10.0 70-13094.89.48m&p-Xylene
5.00 70-13095.34.77o-Xylene
8.00 70-130Surrogate: 4-Bromofluorobenzene (1)96.87.74
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FLAG/QUALIFIER SUMMARY
*QC result is outside of established limits.
†Wide recovery limits established for difficult compound.
‡Wide RPD limits established for difficult compound.
#Data exceeded client recommended or regulatory level
Percent recoveries and relative percent differences (RPDs) are determined by the software using values in the
calculation which have not been rounded.
Continuing calibration did not meet method specifications and was biased on the high side for this compound.
Increased uncertainty is associated with the reported value which is likely to be biased on the high side.
V-06
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CertificationsAnalyte
CERTIFICATIONS
Certified Analyses included in this Report
EPA TO-15 in Air
AIHA,FL,NJ,NY,VA,MEBenzyl chloride
AIHA,NJ,NY,VA,ME1,3-Butadiene
AIHA,FL,NJ,NY,VA,MEChloroform
AIHA,FL,NJ,NY,VA,ME1,1-Dichloroethylene
AIHA,FL,NY,VA,MEcis-1,2-Dichloroethylene
AIHA,NJ,NY,VA,MEtrans-1,2-Dichloroethylene
AIHA,FL,NJ,NY,VA,MEEthylbenzene
NY,MENaphthalene
AIHA,FL,NJ,NY,VA,METetrachloroethylene
AIHA,FL,NJ,NY,VA,METrichloroethylene
AIHA,NJ,NY,ME1,2,4-Trimethylbenzene
AIHA,NJ,NY,ME1,3,5-Trimethylbenzene
AIHA,FL,NJ,NY,VA,MEVinyl Chloride
AIHA,FL,NJ,NY,VA,MEm&p-Xylene
AIHA,FL,NJ,NY,VA,MEo-Xylene
The CON-TEST Environmental Laboratory operates under the following certifications and accreditations:
Code Description Number Expires
100033AIHA-LAP, LLC - ISO17025:2005AIHA 02/1/2018
M-MA100Massachusetts DEPMA 06/30/2017
PH-0567Connecticut Department of Publilc HealthCT 09/30/2017
10899 NELAPNew York State Department of HealthNY 04/1/2017
2516 NELAPNew Hampshire Environmental LabNH-S 02/5/2017
LAO00112Rhode Island Department of HealthRI 12/30/2016
652North Carolina Div. of Water QualityNC 12/31/2016
MA007 NELAPNew Jersey DEPNJ 06/30/2017
E871027 NELAPFlorida Department of HealthFL 06/30/2017
LL015036Vermont Department of Health Lead LaboratoryVT 07/30/2017
2011028State of MaineME 06/9/2017
460217Commonwealth of VirginiaVA 12/14/2016
2557 NELAPNew Hampshire Environmental LabNH-P 09/6/2017
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