10047_ Atherton Mill_Final PM IAQ Sampling Report 20150526

May 26,2015
Ms. Carolyn Minnich, Brownfields Project Manager
North Carolina Department of Environment and Natural ResourcesDivision of Waste ManagementBrownfields Program
1646 Mail Service CenterRaleigh, North Carolina 27699-1646
Subject:Second Report of Post-Mitigation Indoor Air Quality (IAQ)Assessment
Atherton Mill Property2000South BoulevardCharlotte, Mecklenburg County, North Carolina
Brownfields Project Number:10047-06-60Amec Foster Wheeler Project:6228-12-0051
Dear Ms. Minnich:
On behalf of Atherton Mill (E&A), LLC,Amec Foster Wheeler Environment &Infrastructure,
Inc. (Amec Foster Wheeler)is pleased to present this report for the Atherton Mill Property
located in Charlotte, North Carolina (subject property)to the North Carolina Department ofEnvironment and Natural Resources (NCDENR), Division of Waste Management (DWM),
Brownfields Program (BP).
Amec Foster Wheeler references our previous submittals related to the Vapor Mitigation
effort at the subject property:
Vapor Mitigation Plan, Atherton Mill, 2000 South Boulevard, Charlotte, NorthCarolina(dated January 13, 2015).
Indoor Air Monitoring –Target Monitoring Goals (dated February 6, 2015).
Vapor Mitigation System Construction Package, Units 75 & 80 (dated February 9,
2015).
Vapor Mitigation System Construction Package (Basement Ventilation), Units 120,
140 and 150 (dated February 11, 2015).
Report of Post-Mitigation IAQ Assessment (dated April 14, 2015).
In February and March 2015, the two above-referenced vapor mitigation plans wereimplemented relative to Building 1 (Units 75, 80,120, 140 and 150).Furthermore, indoor air
target monitoring goals (dated February 6, 2015) were approved by NCDENR in a letterdated March 16, 2015.
Amec Foster Wheeler performed the initial post-Mitigation IAQ event on March 26, 2015.The results warranted additional monitoring of the air quality in Unit 120. Consequently,Amec Foster Wheeler prepared a work plan for Post-Mitigation IAQ sampling (dated April
Atherton Mill Property –Second Report of Post-Mitigation IAQ Assessment May 26, 20152000 South Boulevard, Charlotte, NCAmec Foster Wheeler Project: 6228-12-0051
2
22, 2015) and submitted the work plan to NCDENR. The BP issued an approval letter(dated April 23, 2015) for the plan.
Indoor Air Quality Sampling Activities
The purpose of this sampling second Post-Mitigation event was to evaluate theeffectiveness of the implemented vapor mitigation plans and potential vapor migrationpathways in Unit 120.On Monday, April 27, 2015,Amec Foster Wheeler collected a total of
four indoor air samples from Building 1 (from Unit 120 and the basement beneath Units 120and 140).In addition,one outdoor background sample was collected.Figure 1 depicts the
sample locations.Drawing C-001 is also included with this report to illustrate the installed
basement ventilation system and associated sample locations.A summary of eachsamplinglocation is as follows:
PM-F –Vacant basement beneath Units 120 and 140;
PM-G –Unit 120,occupied by Vin Master wine shop, sample collected in thekitchen area;
PM-H –Unit 120, occupied by Vin Master wine shop, sample collected near
Toledo scales;
PM-I –Unit 120, occupied by Vin Master wine shop, sample collected nearfront door entrance;and
Outside-3 –Outdoor background sample,downwind of building, samplecollected at western building corner near railroad tracks.
During sample collection,the HVAC system operated normally in Unit 120, but no
employees were present, because the Vin Master retail store is closed on Sunday andMonday.The basement was vacant at the time of sampling. The vapor mitigation ventilationsystem was operating normally at the time of sample collection.The sampling scope
included the following items:
The vacuum reading of each Summa canister was recorded prior to and aftersample collection.
Each sample was collected from the normal breathing level above the floor;
The samples were collected over an 8-hour time period on April 27,2015.
Each sample was collected into a “batch certified” 6-liter Summa canister ata flow rate of approximately 12.5 mL/min (8-hour sample time)and submitted
to a North Carolina certified laboratory for analysis.
The indoor air samples were maintained under a chain-of-custody protocol
and submitted to a North Carolina certified laboratory for analysis of list ofvolatile organic compounds (VOCs)to which monitoring goals were
Atherton Mill Property –Second Report of Post-Mitigation IAQ Assessment May 26, 20152000 South Boulevard, Charlotte, NCAmec Foster Wheeler Project: 6228-12-0051
4
FIGURE
POST-MITIGATION INDOOR AIR QUALITY SAMPLE (APRIL 27, 2015)
Atherton Mill Property –Second Report of Post-Mitigation IAQ Assessment May 26, 20152000 South Boulevard, Charlotte, NCAmec Foster Wheeler Project: 6228-12-0051
5
TABLE
Table 1: Summary of Post-Mitigation Indoor Air Constituent of Concern Analytical Results
Atherton Mill Property
Charlotte, North Carolina
Amec Foster Wheeler Project: 6228-12-0051
PM-A
3/26/15
PM-G
4/27/15
PM-H
4/27/15
PM-I
4/27/15
PM-B
3/26/15
PM-C
3/26/15
PM-D
3/26/15
PM-E
3/26/15
PM-F
4/27/15
Outside-1
3/26/15
Outside-2
3/26/15
Outside-3
4/27/15 Inhalation Inhalation
Units 150 120 120 120 120 140 75 80 Basement RfC Unit Risk (IUR)
Office or Retail?retail retail retail retail retail office retail retail vacant (mg/m3)(µg/m3)-1
Benzene 1.3 2.5 1.3 6.6 0.8 1.5 1.1 0.96 0.77 0.88 1.6 1.1 3.0E-02 7.8E-06 IRIS 16 130 98 130
Carbon tetrachloride <0.95 <0.95 <0.95 <0.95 <0.95 <0.99 <0.95 <0.95 <0.95 <0.95 1.1 <0.99 1.0E-01 6.0E-06 IRIS 20 440 128 440
Chloroform 9.3 <0.74 <0.74 <0.74 <0.74 1.1 <0.74 <0.74 0.76 <0.74 <0.74 <0.77 9.8E-02 2.3E-05 ATSDR/IRIS 5.3 430 33 430
1,4-Dichlorobenzene <4.6 <1.8 <1.8 <1.8 <4.6 <4.7 <4.6 <4.6 <1.8 <4.6 <4.6 <1.9 8.0E-01 1.1E-05 IRIS/CalEPA 11 3,500 70 3500
1,2-Dichloroethane <0.61 <0.61 <0.61 <0.61 <0.61 0.94 <0.61 <0.61 <0.61 <0.61 <0.61 <0.64 7.0E-03 2.6E-05 PPRTV/IRIS 4.7 31 29 31
Ethyl Acetate 11.7 3.2 3.5 3.2 5.6 <1.1 <1.1 <1.1 2.1 <1.1 <1.1 4.3 7.0E-02 NA PPRTV NA 310 NA 310
Ethylbenzene <1.3 2.8 2.4 3.0 2.3 1.4 <1.3 <1.3 <1.3 <1.3 <1.3 <1.4 1.0E+00 2.5E-06 IRIS/CalEPA 49 4,400 310 4400
Tetrachloroethene <1.0 <1.0 <1.0 <1.0 1.2 1.9 4 4 1.3 <1.0 <1.0 <1.1 4.0E-02 2.6E-07 IRIS 470 180 2900 180
Trichloroethene <4.1 15.6 22.2 19.5 16.4 6.7 <4.1 <4.1 40.1 <4.1 <4.1 <0.85 2.0E-03 4.1E-06 IRIS 30 8.8 190 8.8
1,2,4-Trimethylbenzene <7.4 <1.5 <1.5 <1.5 <7.4 <7.7 <7.4 <7.4 <1.5 <7.4 <7.4 <1.5 7.0E-03 NA PPRTV NA 30.7 NA 31
Notes:
1. Concentrations shown in µg/m3 Prepared/Date:RCF 5-5-2015
2. m3 = cubic meters Checked/Date:MTM 5-5-2015
3. mg = milligram
4. RfC = Reference Concentration
5. µg = micrograms
6. NA = Not Available
7. CalEPA - California Environmental Protection Agency
8. IRIS - Integrated Risk Information System
9. ATSDR - Agency for Toxic Substances and Disease Registry
10. PPRTV - Provisional Peer Reviewed Toxicity Values
11. (a) Target Indoor Air Monitoring Goal (Carcinogens) = (TCR * ATc)/(ET * EF * ED * IUR)
12. (b) Target Indoor Air Monitoring Goal (Non-Carcinogens) = (RfC * THI * ATnc * 1000)/(ET * EF * ED)
13. Concentration in bold font exceeded the applicable target indoor air monitoring goal (highlighted).
Office Worker
ATnc = Averaging Time (Noncarcinogen, hours)219000
ET = Exposure Time (hours per day)8 (hours/day)ATc = Averaging Time (Carcinogenic, hours)613200
EF = Exposure Frequency (days per year)250 (days/year)TCR = Target Cancer Risk 1.00E-05
ED = Exposure Duration (years)25 (years)THI = Target Hazard Index 1
Retail Worker
ATnc = Averaging Time (Noncarcinogen, hours)35040
ET = Exposure Time (hours per day)8 (hours/day)ATc = Averaging Time (Carcinogenic, hours)613200
EF = Exposure Frequency (days per year)250 (days/year)TCR = Target Cancer Risk 1.00E-05
ED = Exposure Duration (years)4 (years)THI = Target Hazard Index 1
Outside Air
Constituent of Concern
Building 1
Note: Median tenure for retail workers ranges from 2.8 years to 3.3 years for January 2004 through January 2014 (Employee Tenure in 2014, Bureau for
Labor Statistics, September 2014. Exposure duration rounded upward to 4 years.
Target Indoor
Air Monitoring
Goal for
Carcinogens (a)
µg/m3
Target Indoor Air
Monitoring Goal
for Non-
Carcinogens (b)
µg/m3
Office Worker Retail WorkerToxicity Values
Source Target Indoor
Air Monitoring
Goal for
Carcinogens
(a)µg/m3
Target Indoor
Air Monitoring
Goal for Non-
Carcinogens
(b)µg/m3
Atherton Mill Property –Second Report of Post-Mitigation IAQ Assessment May 26, 20152000 South Boulevard, Charlotte, NCAmec Foster Wheeler Project: 6228-12-0051
6
ATTACHMENT A
LABORATORY ANALYTICAL REPORTS AND CHAIN-OF-CUSTODY FORMS
#=CL#
May 05, 2015
LIMS USE: FR - ROB FOSTER
LIMS OBJECT ID: 92247731
92247731
Project:
Pace Project No.:
RE:
Rob Foster
Amec Foster Wheeler
2801 Yorkmont Road Suite 100
Charlotte, NC 28208
Atherton Mill 6228-12-0051
Dear Rob Foster:
Enclosed are the analytical results for sample(s) received by the laboratory on April 29, 2015. The
results relate only to the samples included in this report. Results reported herein conform to the
most current TNI standards and the laboratory's Quality Assurance Manual, where applicable, unless
otherwise noted in the body of the report.
Analyses were performed at the Pace Analytical Services location indicated on the sample analyte
page for analysis unless otherwise footnoted.
If you have any questions concerning this report, please feel free to contact me.
Sincerely,
Kevin Godwin
[e-mail]
Project Manager
Enclosures
REPORT OF LABORATORY ANALYSIS
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without the written consent of Pace Analytical Services, Inc..
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#=CP#
CERTIFICATIONS
Pace Project No.:
Project:
92247731
Atherton Mill 6228-12-0051
Minnesota Certification IDs1700 Elm Street SE Suite 200, Minneapolis, MN 55414A2LA Certification #: 2926.01
Alaska Certification #: UST-078Alaska Certification #MN00064Alabama Certification #40770Arizona Certification #: AZ-0014Arkansas Certification #: 88-0680
California Certification #: 01155CAColorado Certification #PaceConnecticut Certification #: PH-0256EPA Region 8 Certification #: 8TMS-LFlorida/NELAP Certification #: E87605
Guam Certification #:14-008rGeorgia Certification #: 959Georgia EPD #: PaceIdaho Certification #: MN00064Hawaii Certification #MN00064
Illinois Certification #: 200011Indiana Certification#C-MN-01Iowa Certification #: 368Kansas Certification #: E-10167Kentucky Dept of Envi. Protection - DW #90062
Kentucky Dept of Envi. Protection - WW #:90062Louisiana DEQ Certification #: 3086Louisiana DHH #: LA140001Maine Certification #: 2013011Maryland Certification #: 322
Michigan DEPH Certification #: 9909
Minnesota Certification #: 027-053-137Mississippi Certification #: Pace
Montana Certification #: MT0092Nevada Certification #: MN_00064Nebraska Certification #: PaceNew Jersey Certification #: MN-002New York Certification #: 11647
North Carolina Certification #: 530North Carolina State Public Health #: 27700North Dakota Certification #: R-036Ohio EPA #: 4150Ohio VAP Certification #: CL101
Oklahoma Certification #: 9507Oregon Certification #: MN200001Oregon Certification #: MN300001Pennsylvania Certification #: 68-00563Puerto Rico Certification
Saipan (CNMI) #:MP0003South Carolina #:74003001Texas Certification #: T104704192Tennessee Certification #: 02818Utah Certification #: MN000642013-4
Virginia DGS Certification #: 251Virginia/VELAP Certification #: PaceWashington Certification #: C486West Virginia Certification #: 382West Virginia DHHR #:9952C
Wisconsin Certification #: 999407970
REPORT OF LABORATORY ANALYSIS
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#=SA#
SAMPLE ANALYTE COUNT
Pace Project No.:
Project:
92247731
Atherton Mill 6228-12-0051
Lab ID Sample ID Method
Analytes
Reported LaboratoryAnalysts
92247731001 PM-F TO-15 10 PASI-MMJL
92247731002 PM-G TO-15 10 PASI-MMJL
92247731003 PM-H TO-15 10 PASI-MMJL
92247731004 PM-I TO-15 10 PASI-MMJL
92247731005 Outside-3 TO-15 10 PASI-MMJL
REPORT OF LABORATORY ANALYSIS
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#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92247731
Atherton Mill 6228-12-0051
Sample:PM-F Lab ID:92247731001 Collected:04/27/15 16:38 Received:04/29/15 10:15 Matrix:Air
Parameters Results Units DF Prepared Analyzed CAS No.QualReport Limit
Analytical Method: TO-15TO15 MSV AIR
Benzene 0.77 ug/m3 05/01/15 23:21 71-43-20.48 1.49
Carbon tetrachloride ND ug/m3 05/01/15 23:21 56-23-50.95 1.49
Chloroform 0.76 ug/m3 05/01/15 23:21 67-66-30.74 1.49
1,4-Dichlorobenzene ND ug/m3 05/01/15 23:21 106-46-71.8 1.49
1,2-Dichloroethane ND ug/m3 05/01/15 23:21 107-06-20.61 1.49
Ethyl acetate 2.1 ug/m3 05/01/15 23:21 141-78-61.1 1.49
Ethylbenzene ND ug/m3 05/01/15 23:21 100-41-41.3 1.49
Tetrachloroethene 1.3 ug/m3 05/01/15 23:21 127-18-41.0 1.49
Trichloroethene 40.1 ug/m3 05/01/15 23:21 79-01-60.82 1.49
1,2,4-Trimethylbenzene ND ug/m3 05/01/15 23:21 95-63-61.5 1.49
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, Inc..Date: 05/05/2015 10:55 AM
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#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92247731
Atherton Mill 6228-12-0051
Sample:PM-G Lab ID:92247731002 Collected:04/27/15 16:40 Received:04/29/15 10:15 Matrix:Air
Parameters Results Units DF Prepared Analyzed CAS No.QualReport Limit
Analytical Method: TO-15TO15 MSV AIR
Benzene 2.5 ug/m3 05/01/15 23:51 71-43-20.48 1.49
Carbon tetrachloride ND ug/m3 05/01/15 23:51 56-23-50.95 1.49
Chloroform ND ug/m3 05/01/15 23:51 67-66-30.74 1.49
1,4-Dichlorobenzene ND ug/m3 05/01/15 23:51 106-46-71.8 1.49
1,2-Dichloroethane ND ug/m3 05/01/15 23:51 107-06-20.61 1.49
Ethyl acetate 3.2 ug/m3 05/01/15 23:51 141-78-61.1 1.49
Ethylbenzene 2.8 ug/m3 05/01/15 23:51 100-41-41.3 1.49
Tetrachloroethene ND ug/m3 05/01/15 23:51 127-18-41.0 1.49
Trichloroethene 15.6 ug/m3 05/01/15 23:51 79-01-60.82 1.49
1,2,4-Trimethylbenzene ND ug/m3 05/01/15 23:51 95-63-61.5 1.49
REPORT OF LABORATORY ANALYSIS
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without the written consent of Pace Analytical Services, Inc..Date: 05/05/2015 10:55 AM
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#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92247731
Atherton Mill 6228-12-0051
Sample:PM-H Lab ID:92247731003 Collected:04/27/15 16:41 Received:04/29/15 10:15 Matrix:Air
Parameters Results Units DF Prepared Analyzed CAS No.QualReport Limit
Analytical Method: TO-15TO15 MSV AIR
Benzene 1.3 ug/m3 05/02/15 00:52 71-43-20.48 1.49
Carbon tetrachloride ND ug/m3 05/02/15 00:52 56-23-50.95 1.49
Chloroform ND ug/m3 05/02/15 00:52 67-66-30.74 1.49
1,4-Dichlorobenzene ND ug/m3 05/02/15 00:52 106-46-71.8 1.49
1,2-Dichloroethane ND ug/m3 05/02/15 00:52 107-06-20.61 1.49
Ethyl acetate 3.5 ug/m3 05/02/15 00:52 141-78-61.1 1.49
Ethylbenzene 2.4 ug/m3 05/02/15 00:52 100-41-41.3 1.49
Tetrachloroethene ND ug/m3 05/02/15 00:52 127-18-41.0 1.49
Trichloroethene 22.2 ug/m3 05/02/15 00:52 79-01-60.82 1.49
1,2,4-Trimethylbenzene ND ug/m3 05/02/15 00:52 95-63-61.5 1.49
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, Inc..Date: 05/05/2015 10:55 AM
Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 6 of 12
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92247731
Atherton Mill 6228-12-0051
Sample:PM-I Lab ID:92247731004 Collected:04/27/15 16:42 Received:04/29/15 10:15 Matrix:Air
Parameters Results Units DF Prepared Analyzed CAS No.QualReport Limit
Analytical Method: TO-15TO15 MSV AIR
Benzene 6.6 ug/m3 05/02/15 01:22 71-43-20.48 1.49
Carbon tetrachloride ND ug/m3 05/02/15 01:22 56-23-50.95 1.49
Chloroform ND ug/m3 05/02/15 01:22 67-66-30.74 1.49
1,4-Dichlorobenzene ND ug/m3 05/02/15 01:22 106-46-71.8 1.49
1,2-Dichloroethane ND ug/m3 05/02/15 01:22 107-06-20.61 1.49
Ethyl acetate 3.2 ug/m3 05/02/15 01:22 141-78-61.1 1.49
Ethylbenzene 3.0 ug/m3 05/02/15 01:22 100-41-41.3 1.49
Tetrachloroethene ND ug/m3 05/02/15 01:22 127-18-41.0 1.49
Trichloroethene 19.5 ug/m3 05/02/15 01:22 79-01-60.82 1.49
1,2,4-Trimethylbenzene ND ug/m3 05/02/15 01:22 95-63-61.5 1.49
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, Inc..Date: 05/05/2015 10:55 AM
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9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 7 of 12
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92247731
Atherton Mill 6228-12-0051
Sample:Outside-3 Lab ID:92247731005 Collected:04/27/15 16:45 Received:04/29/15 10:15 Matrix:Air
Parameters Results Units DF Prepared Analyzed CAS No.QualReport Limit
Analytical Method: TO-15TO15 MSV AIR
Benzene 1.1 ug/m3 05/02/15 00:21 71-43-20.50 1.55
Carbon tetrachloride ND ug/m3 05/02/15 00:21 56-23-50.99 1.55
Chloroform ND ug/m3 05/02/15 00:21 67-66-30.77 1.55
1,4-Dichlorobenzene ND ug/m3 05/02/15 00:21 106-46-71.9 1.55
1,2-Dichloroethane ND ug/m3 05/02/15 00:21 107-06-20.64 1.55
Ethyl acetate 4.3 ug/m3 05/02/15 00:21 141-78-61.1 1.55
Ethylbenzene ND ug/m3 05/02/15 00:21 100-41-41.4 1.55
Tetrachloroethene ND ug/m3 05/02/15 00:21 127-18-41.1 1.55
Trichloroethene ND ug/m3 05/02/15 00:21 79-01-60.85 1.55
1,2,4-Trimethylbenzene ND ug/m3 05/02/15 00:21 95-63-61.5 1.55
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, Inc..Date: 05/05/2015 10:55 AM
Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
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[phone]
Page 8 of 12
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92247731
Atherton Mill 6228-12-0051
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
QC Batch:
QC Batch Method:
Analysis Method:
Analysis Description:
AIR/23150
TO-15
TO-15
TO15 MSV AIR Low Level
Associated Lab Samples:92247731001, 92247731002, 92247731003, 92247731004, 92247731005
Parameter Units
Blank
Result
Reporting
Limit Qualifiers
METHOD BLANK:1953682
Associated Lab Samples:92247731001, 92247731002, 92247731003, 92247731004, 92247731005
Matrix:Air
Analyzed
1,2,4-Trimethylbenzene ug/m3 ND 1.0 05/01/15 13:53
1,2-Dichloroethane ug/m3 ND 0.41 05/01/15 13:53
1,4-Dichlorobenzene ug/m3 ND 1.2 05/01/15 13:53
Benzene ug/m3 ND 0.32 05/01/15 13:53
Carbon tetrachloride ug/m3 ND 0.64 05/01/15 13:53
Chloroform ug/m3 ND 0.50 05/01/15 13:53
Ethyl acetate ug/m3 ND 0.73 05/01/15 13:53
Ethylbenzene ug/m3 ND 0.88 05/01/15 13:53
Tetrachloroethene ug/m3 ND 0.69 05/01/15 13:53
Trichloroethene ug/m3 ND 0.55 05/01/15 13:53
Parameter Units
LCS
Result
% Rec
Limits Qualifiers% RecConc.
1953683LABORATORY CONTROL SAMPLE:
LCSSpike
1,2,4-Trimethylbenzene ug/m3 56.850 114 75-134
1,2-Dichloroethane ug/m3 53.8 CH41.2 131 73-139
1,4-Dichlorobenzene ug/m3 66.661.2 109 69-135
Benzene ug/m3 37.732.5 116 64-139
Carbon tetrachloride ug/m3 84.5 CH6413275-150
Chloroform ug/m3 60.449.7 122 73-136
Ethyl acetate ug/m3 41.636.6 114 64-137
Ethylbenzene ug/m3 52.744.2 119 71-136
Tetrachloroethene ug/m3 78.869 114 66-137
Trichloroethene ug/m3 66.154.6 121 70-134
REPORT OF LABORATORY ANALYSIS
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without the written consent of Pace Analytical Services, Inc..Date: 05/05/2015 10:55 AM
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Page 9 of 12
#=QL#
QUALIFIERS
Pace Project No.:
Project:
92247731
Atherton Mill 6228-12-0051
DEFINITIONS
DF - Dilution Factor, if reported, represents the factor applied to the reported data due to dilution of the sample aliquot.
ND - Not Detected at or above adjusted reporting limit.
J - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit.
MDL - Adjusted Method Detection Limit.
PQL - Practical Quantitation Limit.
RL - Reporting Limit.
S - Surrogate
1,2-Diphenylhydrazine decomposes to and cannot be separated from Azobenzene using Method 8270. The result for each analyte is
a combined concentration.
Consistent with EPA guidelines, unrounded data are displayed and have been used to calculate % recovery and RPD values.
LCS(D) - Laboratory Control Sample (Duplicate)
MS(D) - Matrix Spike (Duplicate)
DUP - Sample Duplicate
RPD - Relative Percent Difference
NC - Not Calculable.
SG - Silica Gel - Clean-Up
U - Indicates the compound was analyzed for, but not detected.
Acid preservation may not be appropriate for 2 Chloroethylvinyl ether, Styrene, and Vinyl chloride.
A separate vial preserved to a pH of 4-5 is recommended in SW846 Chapter 4 for the analysis of Acrolein and Acrylonitrile by EPA
Method 8260.
N-Nitrosodiphenylamine decomposes and cannot be separated from Diphenylamine using Method 8270. The result reported for
each analyte is a combined concentration.
Pace Analytical is TNI accredited. Contact your Pace PM for the current list of accredited analytes.
TNI - The NELAC Institute.
LABORATORIES
Pace Analytical Services - MinneapolisPASI-M
ANALYTE QUALIFIERS
The continuing calibration for this compound is outside of Pace Analytical acceptance limits. The results may be biased
high.CH
REPORT OF LABORATORY ANALYSIS
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without the written consent of Pace Analytical Services, Inc..Date: 05/05/2015 10:55 AM
Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 10 of 12
#=CR#
QUALITY CONTROL DATA CROSS REFERENCE TABLE
Pace Project No.:
Project:
92247731
Atherton Mill 6228-12-0051
Lab ID Sample ID QC Batch Method QC Batch Analytical Method
Analytical
Batch
92247731001 AIR/23150PM-F TO-15
92247731002 AIR/23150PM-G TO-15
92247731003 AIR/23150PM-H TO-15
92247731004 AIR/23150PM-I TO-15
92247731005 AIR/23150Outside-3 TO-15
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, Inc..Date: 05/05/2015 10:55 AM
Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 11 of 12
Page 12 of 12