HomeMy WebLinkAbout19070-15-025 - Indoor Air Sampling Summary Dec 2018
100 E. Ruffin Street ∙Mebane, North Carolina 27302
Telephone (919) 563‐9091 ∙Facsimile (919) 563‐9095
www.terraquestpc.com
January 26, 2019
Kelly Johnson
Project Manager
Division of Waste Management ‐ Brownfields
NC Department of Environmental Quality
217 W Jones St.
Raleigh, NC 27603
Re: Indoor Air Sampling Report
Polo Enterprises Redevelopment
223 Craven Street
New Bern, Craven County, NC
NCDEQ DWM Brownfields Project #: 19070‐15‐025
Terraquest Project Number: 06815
Dear Mr. Johnson:
Terraquest Environmental Consultants, P.C. (Terraquest) has completed this Indoor Air Sampling
letter summarizing the indoor air sampling event at the Polo Enterprises Redevelopment
property located at 223 Craven St., New Bern, Craven County, NC (herein referred to as the
subject property). The attached Figure 1 depicts the location of the subject property. The
attached Figure 2 depicts the site layout of the subject property.
Site History
On November 28, 2016 during the removal of the steam boiler and the boiler room floor, a
Varsol/petroleum odor was noted in the soils beneath the boiler room floor. Soil samples
collected from beneath the slab revealed Varsol‐type contaminant concentrations in excess of
the North Carolina Department of Environmental Quality Division of Waste Management‐
Underground Storage Tank (NCDEQ DWM‐UST) Soil‐to‐Groundwater Maximum Soil Contaminant
Concentrations (S‐t‐G MSCCs). The C9‐C18 Aliphatic and C9‐C22 Aromatic Carbon Fractions and
lead were detected in concentrations greater than their Residential MSCCs. On March 21, 2017,
Terraquest supervised the excavation of contaminated soils located beneath the former boiler
room. Confirmation soil samples were collected at the final limits of the soil excavation to
determine in‐situ soil quality along the sidewalls (SW1, SW2, SW2‐West, SW3, and SW4). No
base of the excavation soil sample was collected since groundwater was encountered at a depth
of 8 feet BGL. The excavation was backfilled with a clean sand from Jimmie L. Morris & Sons, Inc.
borrow pit located in Vanceboro, NC. A total of 120.23 tons of Varsol‐contaminated soil was
excavated and hauled offsite to the Waste Industries Sampson County Subtitle D Landfill in
Roseboro, NC.
Indoor Air Sampling Summary
Polo Enterprises Redevelopment
223 Craven St., New Bern, NC
NCDEQ DWM Brownfields Project #: 19070‐15‐025
January 26,2019 Page 2
Analytical results of soil samples collected from the sidewalls of the excavation revealed
contaminant concentrations of the C9‐C22 Aromatics compound above its Residential MSCC in
the limit of excavation soil samples SW1 and SW3. S‐t‐G MSCC violations were reported in the
SW2‐West and SW3 sidewall soil samples. Groundwater was encountered in the excavation and
soil contamination extended to the water table based upon PID measurements from soils
collected immediately above the estimated depth to water and at the water table interface. The
locations of the sidewalls samples and the limits of the excavation are depicted in the attached
Figure 3.
Contaminated soils have been determined to be limited to a small area of the subject site
beneath former concrete slab at the western end of the property. Groundwater contamination
also appears to be limited in horizontal extent to an area around monitoring well MW‐1 and to
the west toward the parking lot portion of the property. The depth to groundwater in the area
of soil and groundwater contamination is approximately 7 feet below existing land surface. The
area of impact is below the current automotive garage and courtyard entry on the ground level
with a carriage house guest living quarters located on the second floor. The locations of the
monitoring wells are depicted in Figure 3.
Vapor Intrusion Prevention Measures
To prevent future potential vapor intrusion the following vapor intrusion prevention measures
have been implemented:
1) The targeted source area soil remediation has been completed with the excavation of
120.23 tons of impacted soil as a means of reducing the contaminant mass and
consequently, the potential for vapor intrusion;
2) The installation of the passive venting system to divert potential subsurface vapors above
the former UST location and groundwater contaminant plume;
3) The installation of a vapor barrier to retard vapor intrusion into the proposed structure.
The location of the vapor barrier is indicated in the attached Figure 3;
4) The installation of a concrete floor slab garage above the vapor barrier;
5) Construction of a two‐car garage beneath the Carriage House guest living quarters;
Scope of Work
In accordance with the Brownfields Section request, the scope of work conducted by Terraquest
consisted of the collection of one indoor air sample to assess the potential vapor intrusion
contaminants of concern in the guest living quarters interior of the Carriage House. This letter
report presents the fields methods followed for the sampling, the laboratory analytical results of
air samples, comparison of the sample concentrations to applicable levels, and conclusions.
Indoor Air Sampling Summary
Polo Enterprises Redevelopment
223 Craven St., New Bern, NC
NCDEQ DWM Brownfields Project #: 19070‐15‐025
January 26,2019 Page 3
Areas Sampled
The indoor air sample was collected from the middle of the Carriage House interior. The Carriage
House interior is located on the second floor and is accessed from a single door. The interior
consists of a living room/kitchen area, a bedroom, and a bathroom and is approximately 600 sq.
feet.
Indoor Air Sampling
Terraquest prepared a site‐specific Health and Safety Plan (HASP) in general accordance with 29
CFR 1910.120, which addressed the contaminants known or suspected to be present on‐site,
personal protective equipment, monitoring performed during the field activities, and response
actions to be taken in the event monitoring thresholds are exceeded.
Prior to the indoor air sampling event, Terraquest conducted site reconnaissance at the 223
Craven St. Carriage House interior and garage portions of the residence on December 20, 2018
to identify issues or background sources of VOCs that could impact sampling results and request
the property owner’s cooperation to prepare the area for air sampling. No overt sources of
background VOCs were noted; however, the first‐floor garage is an active garage with two
automobiles being stored in the garage. The property owners were instructed to leave the
Carriage House exterior door closed during the 24‐hour period and to not disturb the Summa
canisters.
On December 20, 2018, Terraquest commenced the indoor air and ambient air assessment. A
six‐liter Summa canister with 24‐hour regulator was set up in living room of carriage house
(Carriage House Indoor Air) at a height of approximately three feet above the floor surface, and
a six‐liter Summa canister with 24‐hour regulator was set up outside on the deck of the Carriage
House (Carriage House Outdoor Air). Terraquest personnel opened the Carriage House Indoor
Air regulator at 1327 on December 20, 2018, and opened the Carriage House Outdoor Air
regulator at 1330 on December 20, 2018. The HVAC system was in operation for 48 hours prior
to the sampling event commenced and operated during the entire sampling event. All of the
windows and doors were closed during the duration of the event except to periodically assess
the regulator readings. During these assessments, the exterior door was quickly opened and
closed. Terraquest personnel closed the Carriage House Indoor Air regulator at 1327 on
December 21, 2018, and closed the Carriage House Outdoor regulator at 1330 on December 21,
2018. The attached Table 1 presents the Property Information. Site photographs are also
attached. The locations of the Carriage House Indoor Air Indoor Air and Carriage House Outdoor
Air sample locations are shown on the attached Figure 3. Initial vacuum, weather conditions and
time were recorded for each sample container. The field sampling form is attached.
Indoor Air Sampling Summary
Polo Enterprises Redevelopment
223 Craven St., New Bern, NC
NCDEQ DWM Brownfields Project #: 19070‐15‐025
January 26,2019 Page 4
After collecting the Carriage House Indoor Air Indoor and Outdoor air samples, the Summa
canisters were shipped under standard chain‐of‐custody protocol to Pace Analytical of Mt. Juliet,
Tennessee, a North Carolina‐Certified laboratory, for analysis. The samples were analyzed for
VOCs by EPA Method TO‐15.
Quality Assurance/Quality Control
During the indoor sampling activities, no split or duplicate air samples were collected.
Indoor Air Sampling Results
The laboratory analytical results of the Carriage House Indoor Air sample indicated numerous
compounds; however, only two compounds was detected at a concentration of above their
NCDEQ DWM Residential Vapor Intrusion Screening Concentrations, Indoor Air and Crawlspace
Screening Concentrations (IASLs), Benzene at 1.03 micrograms per cubic meter (µg/m3) and 1,4‐
Dioxane at 2.01 µg/m3. A summary of the air sample results is included on the attached Table 3
and Figure 3. A copy of the laboratory analytical report and chain‐of‐custody form are attached
Quality Assurance/Quality Control Results
During the sampling, Terraquest personnel were on site to maintain chain‐of‐custody and to
monitor the vacuum on each flow regulator, except during hours outside of normal business
hours. In accordance with Terraquest sampling protocol and the NCDEQ Gas Intrusion Guidance
(April 2014), the vacuum was not allowed to reduce to 0 inches‐Hg in either sample collected.
Conclusions
Based on the indoor air sampling results from the December 2018 sampling event, the following
conclusions are presented:
Only two compounds were detected above the Residential Vapor Intrusion Screening
Concentration, Benzene and 1,4‐Diozane;
Indoor Air Sampling Summary
Polo Enterprises Redevelopment
223 Craven St., New Bern, NC
NCDEQ DWM Brownfields Project #: 19070‐15‐025
January 26,2019 Page 5
If you have any questions regarding this letter, please call me at (919) 563‐9091.
Sincerely,
TERRAQUEST ENVIRONMENTAL CONSULTANTS, P.C.
Jonathan R. Grubbs, P.G.
Vice President
Attachments
Table 1: Property Information
Table 2: Coordinates of Indoor Air Sampling Locations
Table 3: Summary of Air Sampling Results
Figure 1: Site Location Map
Figure 2: Site Layout Out
Figure 3: Air Sample & Monitoring Well Location Map
Pictures of Air Sample Locations
Field Sampling Form
Analytical Report
Table 1Date: 1/16/19Sample ID Address Property Desription Owner Name Owner AddressCarriage House Indoor Air 223 Craven St., New Bern, NC Residence Polo Enterprises, LLC P.O. Box 922, New Bern, NC 28563Carriage House Outdoor Air 223 Craven St., New Bern, NC ResidencePolo Enterprises, LLC P.O. Box 922, New Bern, NC 28563Notes:1. Refer to Figure 2 for sample locationsPROPERTY INFORMATIONSite Name: Polo Redevelopment 223 Craven St., New Bern, NC
Table 2Date: 1/16/19Sample IDAddressLatitude LongitudeCarriage House Indoor Air 223 Craven St., New Bern, NC 35.10579 ‐77.03902Carriage House Outdoor Air 223 Craven St., New Bern, NC 35.10603 ‐77.03933Notes:1. Latitude and Longitude are repoted in decimal degreesCOORDINATES OF INDOOR AIR SAMPLING LOCATIONSSite Name: Polo Redevelopment 223 Craven St., New Bern, NC
EPA Method TO‐15EPA Method TO‐15EPA Method TO‐15EPA Method TO‐15EPA Method TO‐15EPA Method TO‐15EPA Method TO‐15EPA Method TO‐15EPA Method TO‐15EPA Method TO‐15EPA Method TO‐15EPA Method TO‐15EPA Method TO‐15EPA Method TO‐15EPA Method TO‐15EPA Method TO‐15EPA Method TO‐15EPA Method TO‐15EPA Method TO‐15EPA Method TO‐15EPA Method TO‐15EPA Method TO‐15EPA Method TO‐15Sample ID Date CollectedSample Depth Sample DurationCarriage House Indoor Air 12/21/2018 ‐ 24 hr.1.03 * 4.01*<0.8674 * 348 ‐ E * 1.58* 39.7* 563 ‐ E 1.35 1.85*<5.1118.4* 3.49 * 1.33 * 0.714* 119*<3.3027.6* 2.01* 2.92* 1.98* 4.3* 3.03*Carriage House Outdoor Air 12/21/2018 ‐24 hr.<0.6391.24<0.867 <2.59722.3 1.62<0.9837.92 1.42 2.03 5.39 * 4.79<0.818 <0.705 <0.694 <0.819 <3.30 <3.07 <0.721 <0.689 <0.8510.591 1.650.36 1,000 1.1 21 6,500 19 83 NE NE 21 6.3 1,000 83 150 100 150 0.083 42 0.56 630 210 420 133.6 1,000 11 21 6,500 19 83 NE NE 21 6.3 1,000 83 150 130 150 0.63 42 5.6 630 210 420136.3 1,000 110 21 6,500 19 83 NE NE 21 6.3 1,000 83 150 130 150 0.63 42 6.3 630 210 420 13120 35,000 370 700 220,000 630 2,800 NE NE 700 210 35,000 2,800 4,900 4,200 4,900 21.0 1,400 190 21,000 7,000 14,000 420Notes:1. All results are displayed in parts per ug/m3; detected concentrations are noted in BOLD.2. Shading indicates a NCDWM Residential Indoor Air Screening Level exceedence.3. E ‐ The analyte concentration exceeds the upper limit of the calibration range of the instrument established by the initial calibration (ICAL).4. * ‐ Chemical Has a Non‐Cancer EffectNCDWM Residential Indoor Air Screening Level ‐ 1.0E‐04NCDWM Residential Exterior Air Screening Leveln‐HexaneStyreneMethyl Butyl Ketone1,4‐DioxanePropeneContaminant of ConcernBenzeneTolueneEthylbenzeneTotal XylenesTetrahydrofuran1,2,4‐TrimethylbenzeneNCDWM Residential Indoor Air Screening Level ‐ 1.0E‐06NCDWM Residential Indoor Air Screening Level ‐ 1.0E‐052‐Butanone (MEK)HeptaneMethylene ChlorideMethyl methacrylateNaphthalene2‐PropanolAcetoneChloromethaneIsopropylbenzeneEthanolTrichlorofluoromethaneDichlorodifluoromethaneTable 3SUMMARY OF AIR SAMPLING RESULTSDate: 1/18/19Site Name: Polo Redevelopment 223 Craven St., New Bern, NCAnalytical Method
EPA Method TO‐15EPA Method TO‐15EPA Method TO‐15EPA Method TO‐15EPA Method TO‐15EPA Method TO‐15EPA Method TO‐15EPA Method TO‐15EPA Method TO‐15EPA Method TO‐15EPA Method TO‐15EPA Method TO‐15EPA Method TO‐15EPA Method TO‐15EPA Method TO‐15EPA Method TO‐15EPA Method TO‐15EPA Method TO‐15EPA Method TO‐15EPA Method TO‐15EPA Method TO‐15EPA Method TO‐15EPA Method TO‐15Sample ID
Date
Collected
Sample
Duration
Carriage House Indoor Air 12/21/2018 24 hr.1.03 * 4.01*<0.867 4 * 348 ‐ E * 1.58* 39.7* 563 ‐ E 1.35 1.85*<5.11 18.4* 3.49 * 1.33 * 0.714* 119*<3.30 27.6* 2.01* 2.92* 1.98* 4.3* 3.03*
Carriage House Outdoor Air 12/21/2018 24 hr.<0.639 1.24 <0.867 <2.597 22.3 1.62 <0.983 7.92 1.42 2.03 5.39 * 4.79 <0.818 <0.705 <0.694 <0.819 <3.30 <3.07 <0.721 <0.689 <0.851 0.591 1.65
0.36 1,000 1.1 21 6,500 19 83 NE NE 21 6.3 1,000 83 150 100 150 0.083 42 0.56 630 210 420 13
3.6 1,000 11 21 6,500 19 83 NE NE 21 6.3 1,000 83 150 130 150 0.63 42 5.6 630 210 42013
6.3 1,000 110 21 6,500 19 83 NE NE 21 6.3 1,000 83 150 130 150 0.63 42 6.3 630 210 420 13
120 35,000 370 700 220,000 630 2,800 NE NE 700 210 35,000 2,800 4,900 4,200 4,900 21.0 1,400 190 21,000 7,000 14,000 420
Notes:
1. All results are displayed in parts per ug/m3; detected concentrations are noted in BOLD.
2. Shading indicates a NCDWM Residential Indoor Air Screening Level exceedence.
3. E ‐ The analyte concentration exceeds the upper limit of the calibration range of the instrument established by the initial calibration (ICAL).
4. * ‐ Chemical Has a Non‐Cancer Effect Total XylenesAnalytical Method
Contaminant of Concern
BenzeneTolueneEthylbenzeneMethyl methacrylateAcetoneChloromethaneIsopropylbenzeneEthanolTrichlorofluoromethaneDichlorodifluoromethane1,2,4‐TrimethylbenzeneNCDWM Residential Indoor Air Screening Level ‐ 1.0E‐06
NCDWM Residential Indoor Air Screening Level ‐ 1.0E‐05
NCDWM Residential Indoor Air Screening Level ‐ 1.0E‐04
NCDWM Residential Exterior Air Screening Level Naphthalene2‐Propanol1,4‐DioxanePropeneStyreneTetrahydrofuranMethyl Butyl Ketone2‐Butanone (MEK)Heptanen‐HexaneMethylene Chloride
Figure 1: Carriage House Indoor Air
Figure 2 Carriage House Outdoor Air
Project Name Project NumberDate LocationWeather Terraquest PersonnelSample TypeIndoor Air Ambient AirSample ID Carriage House Indoor Air Carriage House Outdoor AirCanister ID8944 5237Regulator ID6509 5862Canister Volume (L)66Ambient Temp (F)65 65Barometric Pressure (in Hg)29.67 29.67Start Time1327 1330Initial Vacuum ( in Hg)28 30End Time1327 1330Final Vacuum (in Hg)46Approximate Total Time (min)1440 1440Sample AnalysisTO‐15 TO‐15Description223 Craven St. Carriage House Interior223 Craven St. Carriage House Ambient Air on DeckSampled by:Date: 12/21/18Indoor Air, Ambient Air, or Crawl Space Field Sampling Form06815223 Craven St., New Bern, NCJonathan GrubbsSample InformationSample CollectionPotential Contaminant SourcesSampler InformationJonathan R. GrubbsPolo Redevelopment12/20‐21/201812/20 ‐ Cloudy Rainy 65° 10‐15 mph wind 12/21 ‐ Partly Cloudy/Sunny 67° 15‐20 mph wind Sample Signature
ANALYTICAL REPORT
December 31, 2018
TerraQuest Environmental Consultants PC
Sample Delivery Group:L1055834
Samples Received:12/22/2018
Project Number:06815
Description:Pob Enterprises Redevelopment 223 Craven SL
Report To:Jonathan Grubbs
100 East Ruffin Street
Mebane, NC 27302
Entire Report Reviewed By:
December 31, 2018
[Preliminary Report]
Heather J Wagner
Project Manager
Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Nationalis performed per guidance provided in laboratory standard operating procedures: 060302, 060303, and 060304.
12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 www.pacenational.com
January 02, 2019
Heather J Wagner
Project Manager
ONE LAB. NATIONWIDE.TABLE OF CONTENTS
Cp: Cover Page 1
Tc: Table of Contents 2
Ss: Sample Summary 3
Cn: Case Narrative 4
Sr: Sample Results 5
#1 L1055834-01 5
#2 L1055834-02 7
Qc: Quality Control Summary 9
Volatile Organic Compounds (MS) by Method TO-15 9
Gl: Glossary of Terms 13
Al: Accreditations & Locations 14
Sc: Sample Chain of Custody 15
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ONE LAB. NATIONWIDE.SAMPLE SUMMARY
Collected by Collected date/time Received date/time
#1 L1055834-01 Air Jonathan Grubbs 12/21/18 13:27 12/22/18 09:10
Method Batch Dilution Preparation Analysis Analyst
date/time date/time
Volatile Organic Compounds (MS) by Method TO-15 WG1217222 1 12/29/18 14:09 12/29/18 14:09 AMC
Collected by Collected date/time Received date/time
#2 L1055834-02 Air Jonathan Grubbs 12/21/18 13:30 12/22/18 09:10
Method Batch Dilution Preparation Analysis Analyst
date/time date/time
Volatile Organic Compounds (MS) by Method TO-15 WG1217222 1 12/29/18 14:59 12/29/18 14:59 AMC
1 Cp
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ONE LAB. NATIONWIDE.CASE NARRATIVE
All sample aliquots were received at the correct temperature, in the proper containers, with the
appropriate preservatives, and within method specified holding times, unless qualified or notated within
the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples
have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control
are within established criteria except where addressed in this case narrative, a non-conformance form
or properly qualified within the sample results. By my digital signature below, I affirm to the best of my
knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the
quality of the data have been identified by the laboratory, and no information or data have been
knowingly withheld that would affect the quality of the data.
[Preliminary Report]
Heather J Wagner
Project Manager
1 Cp
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Heather J Wagner
Project Manager
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ONE LAB. NATIONWIDE.SAMPLE RESULTS - 01
L1055834
#1
Collected date/time: 12/21/18 13:27
Volatile Organic Compounds (MS) by Method TO-15
CAS #Mol. Wt.RDL1 RDL2 Result Result Qualifier Dilution Batch
Analyte ppbv ug/m3 ppbv ug/m3
Acetone 67-64-1 58.10 1.25 2.97 146 348 E 1 WG1217222
Allyl chloride 107-05-1 76.53 0.200 0.626 ND ND 1 WG1217222
Benzene 71-43-2 78.10 0.200 0.639 0.324 1.03 1 WG1217222
Benzyl Chloride 100-44-7 127 0.200 1.04 ND ND 1 WG1217222
Bromodichloromethane 75-27-4 164 0.200 1.34 ND ND 1 WG1217222
Bromoform 75-25-2 253 0.600 6.21 ND ND 1 WG1217222
Bromomethane 74-83-9 94.90 0.200 0.776 ND ND 1 WG1217222
1,3-Butadiene 106-99-0 54.10 2.00 4.43 ND ND 1 WG1217222
Carbon disulfide 75-15-0 76.10 0.200 0.622 ND ND 1 WG1217222
Carbon tetrachloride 56-23-5 154 0.200 1.26 ND ND 1 WG1217222
Chlorobenzene 108-90-7 113 0.200 0.924 ND ND 1 WG1217222
Chloroethane 75-00-3 64.50 0.200 0.528 ND ND 1 WG1217222
Chloroform 67-66-3 119 0.200 0.973 ND ND 1 WG1217222
Chloromethane 74-87-3 50.50 0.200 0.413 0.764 1.58 1 WG1217222
2-Chlorotoluene 95-49-8 126 0.200 1.03 ND ND 1 WG1217222
Cyclohexane 110-82-7 84.20 0.200 0.689 ND ND 1 WG1217222
Dibromochloromethane 124-48-1 208 0.200 1.70 ND ND 1 WG1217222
1,2-Dibromoethane 106-93-4 188 0.200 1.54 ND ND 1 WG1217222
1,2-Dichlorobenzene 95-50-1 147 0.200 1.20 ND ND 1 WG1217222
1,3-Dichlorobenzene 541-73-1 147 0.200 1.20 ND ND 1 WG1217222
1,4-Dichlorobenzene 106-46-7 147 0.200 1.20 ND ND 1 WG1217222
1,2-Dichloroethane 107-06-2 99 0.200 0.810 ND ND 1 WG1217222
1,1-Dichloroethane 75-34-3 98 0.200 0.802 ND ND 1 WG1217222
1,1-Dichloroethene 75-35-4 96.90 0.200 0.793 ND ND 1 WG1217222
cis-1,2-Dichloroethene 156-59-2 96.90 0.200 0.793 ND ND 1 WG1217222
trans-1,2-Dichloroethene 156-60-5 96.90 0.200 0.793 ND ND 1 WG1217222
1,2-Dichloropropane 78-87-5 113 0.200 0.924 ND ND 1 WG1217222
cis-1,3-Dichloropropene 10061-01-5 111 0.200 0.908 ND ND 1 WG1217222
trans-1,3-Dichloropropene 10061-02-6 111 0.200 0.908 ND ND 1 WG1217222
1,4-Dioxane 123-91-1 88.10 0.200 0.721 0.559 2.01 1 WG1217222
Ethanol 64-17-5 46.10 0.630 1.19 299 563 E 1 WG1217222
Ethylbenzene 100-41-4 106 0.200 0.867 ND ND 1 WG1217222
4-Ethyltoluene 622-96-8 120 0.200 0.982 ND ND 1 WG1217222
Trichlorofluoromethane 75-69-4 137.40 0.200 1.12 0.241 1.35 1 WG1217222
Dichlorodifluoromethane 75-71-8 120.92 0.200 0.989 0.374 1.85 1 WG1217222
1,1,2-Trichlorotrifluoroethane 76-13-1 187.40 0.200 1.53 ND ND 1 WG1217222
1,2-Dichlorotetrafluoroethane 76-14-2 171 0.200 1.40 ND ND 1 WG1217222
Heptane 142-82-5 100 0.200 0.818 0.853 3.49 1 WG1217222
Hexachloro-1,3-butadiene 87-68-3 261 0.630 6.73 ND ND 1 WG1217222
n-Hexane 110-54-3 86.20 0.200 0.705 0.376 1.33 1 WG1217222
Isopropylbenzene 98-82-8 120.20 0.200 0.983 8.07 39.7 1 WG1217222
Methylene Chloride 75-09-2 84.90 0.200 0.694 0.206 0.714 1 WG1217222
Methyl Butyl Ketone 591-78-6 100 1.25 5.11 ND ND 1 WG1217222
2-Butanone (MEK)78-93-3 72.10 1.25 3.69 6.26 18.4 1 WG1217222
4-Methyl-2-pentanone (MIBK)108-10-1 100.10 1.25 5.12 ND ND 1 WG1217222
Methyl methacrylate 80-62-6 100.12 0.200 0.819 29.0 119 1 WG1217222
MTBE 1634-04-4 88.10 0.200 0.721 ND ND 1 WG1217222
Naphthalene 91-20-3 128 0.630 3.30 ND ND 1 WG1217222
2-Propanol 67-63-0 60.10 1.25 3.07 11.2 27.6 1 WG1217222
Propene 115-07-1 42.10 0.400 0.689 1.70 2.92 1 WG1217222
Styrene 100-42-5 104 0.200 0.851 0.465 1.98 1 WG1217222
1,1,2,2-Tetrachloroethane 79-34-5 168 0.200 1.37 ND ND 1 WG1217222
Tetrachloroethylene 127-18-4 166 0.200 1.36 ND ND 1 WG1217222
Tetrahydrofuran 109-99-9 72.10 0.200 0.590 1.46 4.30 1 WG1217222
Toluene 108-88-3 92.10 0.200 0.753 1.06 4.01 1 WG1217222
1,2,4-Trichlorobenzene 120-82-1 181 0.630 4.66 ND ND 1 WG1217222
1 Cp
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ONE LAB. NATIONWIDE.SAMPLE RESULTS - 01
L1055834
#1
Collected date/time: 12/21/18 13:27
Volatile Organic Compounds (MS) by Method TO-15
CAS #Mol. Wt.RDL1 RDL2 Result Result Qualifier Dilution Batch
Analyte ppbv ug/m3 ppbv ug/m3
1,1,1-Trichloroethane 71-55-6 133 0.200 1.09 ND ND 1 WG1217222
1,1,2-Trichloroethane 79-00-5 133 0.200 1.09 ND ND 1 WG1217222
Trichloroethylene 79-01-6 131 0.200 1.07 ND ND 1 WG1217222
1,2,4-Trimethylbenzene 95-63-6 120 0.200 0.982 0.617 3.03 1 WG1217222
1,3,5-Trimethylbenzene 108-67-8 120 0.200 0.982 ND ND 1 WG1217222
2,2,4-Trimethylpentane 540-84-1 114.22 0.200 0.934 ND ND 1 WG1217222
Vinyl chloride 75-01-4 62.50 0.200 0.511 ND ND 1 WG1217222
Vinyl Bromide 593-60-2 106.95 0.200 0.875 ND ND 1 WG1217222
Vinyl acetate 108-05-4 86.10 0.200 0.704 ND ND 1 WG1217222
m&p-Xylene 1330-20-7 106 0.400 1.73 0.676 2.93 1 WG1217222
o-Xylene 95-47-6 106 0.200 0.867 0.246 1.07 1 WG1217222
(S) 1,4-Bromofluorobenzene 460-00-4 175 60.0-140 107 WG1217222
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
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ONE LAB. NATIONWIDE.SAMPLE RESULTS - 02
L1055834
#2
Collected date/time: 12/21/18 13:30
Volatile Organic Compounds (MS) by Method TO-15
CAS #Mol. Wt.RDL1 RDL2 Result Result Qualifier Dilution Batch
Analyte ppbv ug/m3 ppbv ug/m3
Acetone 67-64-1 58.10 1.25 2.97 9.40 22.3 1 WG1217222
Allyl chloride 107-05-1 76.53 0.200 0.626 ND ND 1 WG1217222
Benzene 71-43-2 78.10 0.200 0.639 ND ND 1 WG1217222
Benzyl Chloride 100-44-7 127 0.200 1.04 ND ND 1 WG1217222
Bromodichloromethane 75-27-4 164 0.200 1.34 ND ND 1 WG1217222
Bromoform 75-25-2 253 0.600 6.21 ND ND 1 WG1217222
Bromomethane 74-83-9 94.90 0.200 0.776 ND ND 1 WG1217222
1,3-Butadiene 106-99-0 54.10 2.00 4.43 ND ND 1 WG1217222
Carbon disulfide 75-15-0 76.10 0.200 0.622 ND ND 1 WG1217222
Carbon tetrachloride 56-23-5 154 0.200 1.26 ND ND 1 WG1217222
Chlorobenzene 108-90-7 113 0.200 0.924 ND ND 1 WG1217222
Chloroethane 75-00-3 64.50 0.200 0.528 ND ND 1 WG1217222
Chloroform 67-66-3 119 0.200 0.973 ND ND 1 WG1217222
Chloromethane 74-87-3 50.50 0.200 0.413 0.786 1.62 1 WG1217222
2-Chlorotoluene 95-49-8 126 0.200 1.03 ND ND 1 WG1217222
Cyclohexane 110-82-7 84.20 0.200 0.689 ND ND 1 WG1217222
Dibromochloromethane 124-48-1 208 0.200 1.70 ND ND 1 WG1217222
1,2-Dibromoethane 106-93-4 188 0.200 1.54 ND ND 1 WG1217222
1,2-Dichlorobenzene 95-50-1 147 0.200 1.20 ND ND 1 WG1217222
1,3-Dichlorobenzene 541-73-1 147 0.200 1.20 ND ND 1 WG1217222
1,4-Dichlorobenzene 106-46-7 147 0.200 1.20 ND ND 1 WG1217222
1,2-Dichloroethane 107-06-2 99 0.200 0.810 ND ND 1 WG1217222
1,1-Dichloroethane 75-34-3 98 0.200 0.802 ND ND 1 WG1217222
1,1-Dichloroethene 75-35-4 96.90 0.200 0.793 ND ND 1 WG1217222
cis-1,2-Dichloroethene 156-59-2 96.90 0.200 0.793 ND ND 1 WG1217222
trans-1,2-Dichloroethene 156-60-5 96.90 0.200 0.793 ND ND 1 WG1217222
1,2-Dichloropropane 78-87-5 113 0.200 0.924 ND ND 1 WG1217222
cis-1,3-Dichloropropene 10061-01-5 111 0.200 0.908 ND ND 1 WG1217222
trans-1,3-Dichloropropene 10061-02-6 111 0.200 0.908 ND ND 1 WG1217222
1,4-Dioxane 123-91-1 88.10 0.200 0.721 ND ND 1 WG1217222
Ethanol 64-17-5 46.10 0.630 1.19 4.20 7.92 1 WG1217222
Ethylbenzene 100-41-4 106 0.200 0.867 ND ND 1 WG1217222
4-Ethyltoluene 622-96-8 120 0.200 0.982 ND ND 1 WG1217222
Trichlorofluoromethane 75-69-4 137.40 0.200 1.12 0.252 1.42 1 WG1217222
Dichlorodifluoromethane 75-71-8 120.92 0.200 0.989 0.410 2.03 1 WG1217222
1,1,2-Trichlorotrifluoroethane 76-13-1 187.40 0.200 1.53 ND ND 1 WG1217222
1,2-Dichlorotetrafluoroethane 76-14-2 171 0.200 1.40 ND ND 1 WG1217222
Heptane 142-82-5 100 0.200 0.818 ND ND 1 WG1217222
Hexachloro-1,3-butadiene 87-68-3 261 0.630 6.73 ND ND 1 WG1217222
n-Hexane 110-54-3 86.20 0.200 0.705 ND ND 1 WG1217222
Isopropylbenzene 98-82-8 120.20 0.200 0.983 ND ND 1 WG1217222
Methylene Chloride 75-09-2 84.90 0.200 0.694 ND ND 1 WG1217222
Methyl Butyl Ketone 591-78-6 100 1.25 5.11 1.37 5.59 1 WG1217222
2-Butanone (MEK)78-93-3 72.10 1.25 3.69 1.62 4.79 1 WG1217222
4-Methyl-2-pentanone (MIBK)108-10-1 100.10 1.25 5.12 ND ND 1 WG1217222
Methyl methacrylate 80-62-6 100.12 0.200 0.819 ND ND 1 WG1217222
MTBE 1634-04-4 88.10 0.200 0.721 ND ND 1 WG1217222
Naphthalene 91-20-3 128 0.630 3.30 ND ND 1 WG1217222
2-Propanol 67-63-0 60.10 1.25 3.07 ND ND 1 WG1217222
Propene 115-07-1 42.10 0.400 0.689 ND ND 1 WG1217222
Styrene 100-42-5 104 0.200 0.851 ND ND 1 WG1217222
1,1,2,2-Tetrachloroethane 79-34-5 168 0.200 1.37 ND ND 1 WG1217222
Tetrachloroethylene 127-18-4 166 0.200 1.36 ND ND 1 WG1217222
Tetrahydrofuran 109-99-9 72.10 0.200 0.590 0.200 0.591 1 WG1217222
Toluene 108-88-3 92.10 0.200 0.753 0.328 1.24 1 WG1217222
1,2,4-Trichlorobenzene 120-82-1 181 0.630 4.66 ND ND 1 WG1217222
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
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ONE LAB. NATIONWIDE.SAMPLE RESULTS - 02
L1055834
#2
Collected date/time: 12/21/18 13:30
Volatile Organic Compounds (MS) by Method TO-15
CAS #Mol. Wt.RDL1 RDL2 Result Result Qualifier Dilution Batch
Analyte ppbv ug/m3 ppbv ug/m3
1,1,1-Trichloroethane 71-55-6 133 0.200 1.09 ND ND 1 WG1217222
1,1,2-Trichloroethane 79-00-5 133 0.200 1.09 ND ND 1 WG1217222
Trichloroethylene 79-01-6 131 0.200 1.07 ND ND 1 WG1217222
1,2,4-Trimethylbenzene 95-63-6 120 0.200 0.982 0.336 1.65 1 WG1217222
1,3,5-Trimethylbenzene 108-67-8 120 0.200 0.982 ND ND 1 WG1217222
2,2,4-Trimethylpentane 540-84-1 114.22 0.200 0.934 ND ND 1 WG1217222
Vinyl chloride 75-01-4 62.50 0.200 0.511 ND ND 1 WG1217222
Vinyl Bromide 593-60-2 106.95 0.200 0.875 ND ND 1 WG1217222
Vinyl acetate 108-05-4 86.10 0.200 0.704 ND ND 1 WG1217222
m&p-Xylene 1330-20-7 106 0.400 1.73 ND ND 1 WG1217222
o-Xylene 95-47-6 106 0.200 0.867 ND ND 1 WG1217222
(S) 1,4-Bromofluorobenzene 460-00-4 175 60.0-140 98.4 WG1217222
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
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ONE LAB. NATIONWIDE.QUALITY CONTROL SUMMARYWG1217222
Volatile Organic Compounds (MS) by Method TO-15 L1055834-01,02
Method Blank (MB)
(MB) R3372242-3 12/29/18 10:14
MB Result MB Qualifier MB MDL MB RDL
Analyte ppbv ppbv ppbv
Acetone 0.116 J 0.0569 1.25
Allyl Chloride U 0.0546 0.200
Benzene U 0.0460 0.200
Benzyl Chloride U 0.0598 0.200
Bromodichloromethane U 0.0436 0.200
Bromoform U 0.0786 0.600
Bromomethane U 0.0609 0.200
1,3-Butadiene U 0.0563 2.00
Carbon disulfide U 0.0544 0.200
Carbon tetrachloride U 0.0585 0.200
Chlorobenzene U 0.0601 0.200
Chloroethane U 0.0489 0.200
Chloroform U 0.0574 0.200
Chloromethane U 0.0544 0.200
2-Chlorotoluene U 0.0605 0.200
Cyclohexane U 0.0534 0.200
Dibromochloromethane U 0.0494 0.200
1,2-Dibromoethane U 0.0185 0.200
1,2-Dichlorobenzene U 0.0603 0.200
1,3-Dichlorobenzene U 0.0597 0.200
1,4-Dichlorobenzene U 0.0557 0.200
1,2-Dichloroethane U 0.0616 0.200
1,1-Dichloroethane U 0.0514 0.200
1,1-Dichloroethene U 0.0490 0.200
cis-1,2-Dichloroethene U 0.0389 0.200
trans-1,2-Dichloroethene U 0.0464 0.200
1,2-Dichloropropane U 0.0599 0.200
cis-1,3-Dichloropropene U 0.0588 0.200
trans-1,3-Dichloropropene U 0.0435 0.200
1,4-Dioxane U 0.0554 0.200
Ethylbenzene U 0.0506 0.200
4-Ethyltoluene U 0.0666 0.200
Trichlorofluoromethane U 0.0673 0.200
Dichlorodifluoromethane U 0.0601 0.200
1,1,2-Trichlorotrifluoroethane U 0.0687 0.200
1,2-Dichlorotetrafluoroethane U 0.0458 0.200
Heptane U 0.0626 0.200
Hexachloro-1,3-butadiene U 0.0656 0.630
n-Hexane U 0.0457 0.200
Isopropylbenzene U 0.0563 0.200
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
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ONE LAB. NATIONWIDE.QUALITY CONTROL SUMMARYWG1217222
Volatile Organic Compounds (MS) by Method TO-15 L1055834-01,02
Method Blank (MB)
(MB) R3372242-3 12/29/18 10:14
MB Result MB Qualifier MB MDL MB RDL
Analyte ppbv ppbv ppbv
Methylene Chloride U 0.0465 0.200
Methyl Butyl Ketone U 0.0682 1.25
2-Butanone (MEK)U 0.0493 1.25
4-Methyl-2-pentanone (MIBK)U 0.0650 1.25
Methyl Methacrylate U 0.0773 0.200
MTBE U 0.0505 0.200
Naphthalene U 0.154 0.630
2-Propanol U 0.0882 1.25
Propene U 0.0932 0.400
Styrene U 0.0465 0.200
1,1,2,2-Tetrachloroethane U 0.0576 0.200
Tetrachloroethylene U 0.0497 0.200
Tetrahydrofuran U 0.0508 0.200
Toluene U 0.0499 0.200
1,2,4-Trichlorobenzene U 0.148 0.630
1,1,1-Trichloroethane U 0.0665 0.200
1,1,2-Trichloroethane U 0.0287 0.200
Trichloroethylene U 0.0545 0.200
1,2,4-Trimethylbenzene U 0.0483 0.200
1,3,5-Trimethylbenzene U 0.0631 0.200
2,2,4-Trimethylpentane U 0.0456 0.200
Vinyl chloride U 0.0457 0.200
Vinyl Bromide U 0.0727 0.200
Vinyl acetate U 0.0639 0.200
m&p-Xylene U 0.0946 0.400
o-Xylene U 0.0633 0.200
Ethanol U 0.0832 0.630
(S) 1,4-Bromofluorobenzene 96.8 60.0-140
Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD)
(LCS) R3372242-1 12/29/18 08:44 • (LCSD) R3372242-2 12/29/18 09:28
Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits
Analyte ppbv ppbv ppbv %%%%%
Ethanol 3.75 3.77 3.76 101 100 55.0-148 0.498 25
Propene 3.75 4.17 4.19 111 112 64.0-144 0.505 25
Dichlorodifluoromethane 3.75 4.36 4.37 116 117 64.0-139 0.187 25
1,2-Dichlorotetrafluoroethane 3.75 4.22 4.20 112 112 70.0-130 0.407 25
Chloromethane 3.75 4.34 4.34 116 116 70.0-130 0.0770 25
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
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ONE LAB. NATIONWIDE.QUALITY CONTROL SUMMARYWG1217222
Volatile Organic Compounds (MS) by Method TO-15 L1055834-01,02
Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD)
(LCS) R3372242-1 12/29/18 08:44 • (LCSD) R3372242-2 12/29/18 09:28
Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits
Analyte ppbv ppbv ppbv %%%%%
Vinyl chloride 3.75 4.20 4.34 112 116 70.0-130 3.32 25
1,3-Butadiene 3.75 4.12 4.16 110 111 70.0-130 0.789 25
Bromomethane 3.75 4.35 4.09 116 109 70.0-130 6.21 25
Chloroethane 3.75 4.20 4.18 112 111 70.0-130 0.513 25
Trichlorofluoromethane 3.75 4.18 4.18 111 111 70.0-130 0.0534 25
1,1,2-Trichlorotrifluoroethane 3.75 4.18 4.19 111 112 70.0-130 0.329 25
1,1-Dichloroethene 3.75 4.15 4.13 111 110 70.0-130 0.355 25
1,1-Dichloroethane 3.75 4.10 4.10 109 109 70.0-130 0.167 25
Acetone 3.75 4.22 4.20 112 112 70.0-130 0.294 25
2-Propanol 3.75 4.17 4.13 111 110 70.0-139 0.911 25
Carbon disulfide 3.75 4.13 4.11 110 110 70.0-130 0.609 25
Methylene Chloride 3.75 3.89 3.89 104 104 70.0-130 0.0192 25
MTBE 3.75 4.13 4.11 110 110 70.0-130 0.330 25
trans-1,2-Dichloroethene 3.75 4.16 4.15 111 111 70.0-130 0.221 25
n-Hexane 3.75 4.09 4.07 109 109 70.0-130 0.400 25
Vinyl acetate 3.75 4.26 4.26 113 114 70.0-130 0.103 25
Methyl Ethyl Ketone 3.75 4.10 4.12 109 110 70.0-130 0.513 25
cis-1,2-Dichloroethene 3.75 4.07 4.08 109 109 70.0-130 0.251 25
Chloroform 3.75 4.05 4.06 108 108 70.0-130 0.242 25
Cyclohexane 3.75 4.08 4.06 109 108 70.0-130 0.618 25
1,1,1-Trichloroethane 3.75 4.10 4.07 109 109 70.0-130 0.538 25
Carbon tetrachloride 3.75 4.16 4.14 111 110 70.0-130 0.407 25
Benzene 3.75 4.07 4.04 108 108 70.0-130 0.682 25
1,2-Dichloroethane 3.75 4.12 4.11 110 110 70.0-130 0.365 25
Heptane 3.75 4.08 4.06 109 108 70.0-130 0.522 25
Trichloroethylene 3.75 3.89 3.89 104 104 70.0-130 0.175 25
1,2-Dichloropropane 3.75 4.05 4.03 108 108 70.0-130 0.527 25
1,4-Dioxane 3.75 4.11 4.09 110 109 70.0-140 0.483 25
Bromodichloromethane 3.75 4.14 4.09 110 109 70.0-130 1.04 25
cis-1,3-Dichloropropene 3.75 4.22 4.18 113 111 70.0-130 1.06 25
4-Methyl-2-pentanone (MIBK)3.75 4.26 4.25 114 113 70.0-139 0.214 25
Toluene 3.75 4.12 4.08 110 109 70.0-130 0.950 25
trans-1,3-Dichloropropene 3.75 4.24 4.23 113 113 70.0-130 0.226 25
1,1,2-Trichloroethane 3.75 4.04 3.98 108 106 70.0-130 1.56 25
Tetrachloroethylene 3.75 4.08 4.06 109 108 70.0-130 0.402 25
Methyl Butyl Ketone 3.75 4.31 4.34 115 116 70.0-149 0.648 25
Dibromochloromethane 3.75 4.23 4.19 113 112 70.0-130 1.00 25
1,2-Dibromoethane 3.75 4.20 4.16 112 111 70.0-130 1.10 25
Chlorobenzene 3.75 4.14 4.07 110 109 70.0-130 1.58 25
Ethylbenzene 3.75 4.13 4.10 110 109 70.0-130 0.643 25
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
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ONE LAB. NATIONWIDE.QUALITY CONTROL SUMMARYWG1217222
Volatile Organic Compounds (MS) by Method TO-15 L1055834-01,02
Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD)
(LCS) R3372242-1 12/29/18 08:44 • (LCSD) R3372242-2 12/29/18 09:28
Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits
Analyte ppbv ppbv ppbv %%%%%
m&p-Xylene 7.50 8.23 8.16 110 109 70.0-130 0.874 25
o-Xylene 3.75 4.10 4.08 109 109 70.0-130 0.347 25
Styrene 3.75 4.29 4.26 115 114 70.0-130 0.866 25
Bromoform 3.75 4.27 4.25 114 113 70.0-130 0.618 25
1,1,2,2-Tetrachloroethane 3.75 4.09 4.06 109 108 70.0-130 0.682 25
4-Ethyltoluene 3.75 4.24 4.21 113 112 70.0-130 0.710 25
1,3,5-Trimethylbenzene 3.75 4.23 4.21 113 112 70.0-130 0.473 25
1,2,4-Trimethylbenzene 3.75 4.24 4.21 113 112 70.0-130 0.719 25
1,3-Dichlorobenzene 3.75 4.25 4.27 113 114 70.0-130 0.463 25
1,4-Dichlorobenzene 3.75 4.35 4.39 116 117 70.0-130 0.844 25
Benzyl Chloride 3.75 4.47 4.49 119 120 70.0-152 0.493 25
1,2-Dichlorobenzene 3.75 4.24 4.23 113 113 70.0-130 0.243 25
1,2,4-Trichlorobenzene 3.75 4.07 4.21 109 112 70.0-160 3.27 25
Hexachloro-1,3-butadiene 3.75 4.31 4.22 115 113 70.0-151 2.07 25
Naphthalene 3.75 4.09 4.28 109 114 70.0-159 4.58 25
Allyl Chloride 3.75 4.20 4.16 112 111 70.0-130 1.01 25
2-Chlorotoluene 3.75 4.17 4.15 111 111 70.0-130 0.415 25
Methyl Methacrylate 3.75 4.14 4.09 110 109 70.0-130 1.16 25
Tetrahydrofuran 3.75 4.03 4.03 107 107 70.0-137 0.0236 25
2,2,4-Trimethylpentane 3.75 4.15 4.13 111 110 70.0-130 0.519 25
Vinyl Bromide 3.75 4.08 4.10 109 109 70.0-130 0.303 25
Isopropylbenzene 3.75 4.17 4.15 111 111 70.0-130 0.445 25
(S) 1,4-Bromofluorobenzene 97.6 98.3 60.0-140
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
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ONE LAB. NATIONWIDE.GLOSSARY OF TERMS
Guide to Reading and Understanding Your Laboratory Report
The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not
intended as a comprehensive explanation, and if you have additional questions please contact your project representative.
Abbreviations and Definitions
MDL Method Detection Limit.
ND Not detected at the Reporting Limit (or MDL where applicable).
RDL Reported Detection Limit.
Rec.Recovery.
RPD Relative Percent Difference.
SDG Sample Delivery Group.
(S)
Surrogate (Surrogate Standard) - Analytes added to every blank, sample, Laboratory Control Sample/Duplicate and
Matrix Spike/Duplicate; used to evaluate analytical efficiency by measuring recovery. Surrogates are not expected to be
detected in all environmental media.
U Not detected at the Reporting Limit (or MDL where applicable).
Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes
reported.
Dilution
If the sample matrix contains an interfering material, the sample preparation volume or weight values differ from the
standard, or if concentrations of analytes in the sample are higher than the highest limit of concentration that the
laboratory can accurately report, the sample may be diluted for analysis. If a value different than 1 is used in this field, the
result reported has already been corrected for this factor.
Limits
These are the target % recovery ranges or % difference value that the laboratory has historically determined as normal
for the method and analyte being reported. Successful QC Sample analysis will target all analytes recovered or
duplicated within these ranges.
Qualifier
This column provides a letter and/or number designation that corresponds to additional information concerning the result
reported. If a Qualifier is present, a definition per Qualifier is provided within the Glossary and Definitions page and
potentially a discussion of possible implications of the Qualifier in the Case Narrative if applicable.
Result
The actual analytical final result (corrected for any sample specific characteristics) reported for your sample. If there was
no measurable result returned for a specific analyte, the result in this column may state “ND” (Not Detected) or “BDL”
(Below Detectable Levels). The information in the results column should always be accompanied by either an MDL
(Method Detection Limit) or RDL (Reporting Detection Limit) that defines the lowest value that the laboratory could detect
or report for this analyte.
Uncertainty
(Radiochemistry)Confidence level of 2 sigma.
Case Narrative (Cn)
A brief discussion about the included sample results, including a discussion of any non-conformances to protocol
observed either at sample receipt by the laboratory from the field or during the analytical process. If present, there will
be a section in the Case Narrative to discuss the meaning of any data qualifiers used in the report.
Quality Control
Summary (Qc)
This section of the report includes the results of the laboratory quality control analyses required by procedure or
analytical methods to assist in evaluating the validity of the results reported for your samples. These analyses are not
being performed on your samples typically, but on laboratory generated material.
Sample Chain of
Custody (Sc)
This is the document created in the field when your samples were initially collected. This is used to verify the time and
date of collection, the person collecting the samples, and the analyses that the laboratory is requested to perform. This
chain of custody also documents all persons (excluding commercial shippers) that have had control or possession of the
samples from the time of collection until delivery to the laboratory for analysis.
Sample Results (Sr)
This section of your report will provide the results of all testing performed on your samples. These results are provided
by sample ID and are separated by the analyses performed on each sample. The header line of each analysis section for
each sample will provide the name and method number for the analysis reported.
Sample Summary (Ss)This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and
times of preparation and/or analysis.
Qualifier Description
E The analyte concentration exceeds the upper limit of the calibration range of the instrument established by the initial
calibration (ICAL).
J The identification of the analyte is acceptable; the reported value is an estimate.
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
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ONE LAB. NATIONWIDE.
Pace National is the only environmental laboratory accredited/certified to support your work nationwide from one location. One phone call, one point of contact, one laboratory. No other lab is as
accessible or prepared to handle your needs throughout the country. Our capacity and capability from our single location laboratory is comparable to the collective totals of the network
laboratories in our industry. The most significant benefit to our one location design is the design of our laboratory campus. The model is conducive to accelerated productivity, decreasing
turn-around time, and preventing cross contamination, thus protecting sample integrity. Our focus on premium quality and prompt service allows us to be YOUR LAB OF CHOICE.
* Not all certifications held by the laboratory are applicable to the results reported in the attached report.
* Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace National.
State Accreditations
Alabama 40660 Nebraska NE-OS-15-05
Alaska 17-026 Nevada TN-03-2002-34
Arizona AZ0612 New Hampshire 2975
Arkansas 88-0469 New Jersey–NELAP TN002
California 2932 New Mexico ¹n/a
Colorado TN00003 New York 11742
Connecticut PH-0197 North Carolina Env375
Florida E87487 North Carolina ¹DW21704
Georgia NELAP North Carolina ³41
Georgia ¹923 North Dakota R-140
Idaho TN00003 Ohio–VAP CL0069
Illinois 200008 Oklahoma 9915
Indiana C-TN-01 Oregon TN200002
Iowa 364 Pennsylvania 68-02979
Kansas E-10277 Rhode Island LAO00356
Kentucky ¹ ⁶90010 South Carolina 84004
Kentucky ²16 South Dakota n/a
Louisiana AI30792 Tennessee ¹ ⁴2006
Louisiana ¹LA180010 Texas T 104704245-17-14
Maine TN0002 Texas ⁵LAB0152
Maryland 324 Utah TN00003
Massachusetts M-TN003 Vermont VT2006
Michigan 9958 Virginia 460132
Minnesota 047-999-395 Washington C847
Mississippi TN00003 West Virginia 233
Missouri 340 Wisconsin 9980939910
Montana CERT0086 Wyoming A2LA
Third Party Federal Accreditations
A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789
A2LA – ISO 17025 ⁵1461.02 DOD 1461.01
Canada 1461.01 USDA P330-15-00234
EPA–Crypto TN00003
ACCREDITATIONS & LOCATIONS
¹ Drinking Water ² Underground Storage Tanks ³ Aquatic Toxicity ⁴ Chemical/Microbiological ⁵ Mold ⁶ Wastewater n/a Accreditation not applicable
Our Locations
Pace National has sixty-four client support centers that provide sample pickup and/or the delivery of sampling supplies. If you would like assistance from one of our support offices, please contactour main office. Pace National performs all testing at our central laboratory.
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