20046_Harris Rogers Tobacco_Final Work Plan_20170413

BROWNFIELDS ASSESSMENT WORK PLAN
ASSESSMENT OVERSIGHT
NCBP #20046-16-074
513, 519 and 523 South Pitt Street
Greenville, Pitt County, North Carolina
April 13, 2017
Prepared for:
North Carolina Department of Environmental Quality
Division of Waste Management
Raleigh, North Carolina
Prepared by:
Terracon Consultants, Inc.
Winterville, North Carolina
April 13, 2017
North Carolina Department of Environmental Quality
Division of Waste Management Brownfields Section
1646 Mail Service Center
Raleigh, North Carolina 27699-1646
Mr. Kelly Johnson [e-mail]
Proposed Sidewalk Development Property
513, 519 and 523 South Pitt Street
Greenville Pitt North Carolina
Dear Mr. Johnson:
On behalf of Sidewalk Greenville, LLC (PD), Terracon Consultants, Inc. (Terracon) is pleased to
submit this Brownfields Assessment Work Plan for the above referenced site. The work plan
includes a discussion of site history, past environmental investigations and outlines the proposed
assessment. The PD is seeking your approval of the proposed work so a Brownfields Agreement
can be drafted.
Terracon appreciates the opportunity to present this work plan to the NC Brownfields Program.
Should you have any questions or require additional information, please do not hesitate to contact
our office.
Sincerely,
Terracon Consultants, Inc.
Blake Neel
Staff Scientist
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Table of Contents
1. PROJECT INFORMATION ...................................................................................... 1
1.1 Site Description .............................................................................................................................. 1
1.2 Site Investigation History .............................................................................................................. 1
1.3 Regulatory Status .......................................................................................................................... 2
1.4 Purpose and Objectives ................................................................................................................ 2
2. ADDITIONAL ASSESSMENT ACTIVITIES ............................................................. 3
2.1 Utility Location ............................................................................................................................... 3
2.2 Soil Investigation ........................................................................................................................... 3
2.3 Groundwater Investigation ........................................................................................................... 4
2.4 Soil Vapor Investigation ................................................................................................................ 4
2.5 Sample Custody, Packaging, and Shipment ............................................................................... 6
2.6 Location and Elevation Survey ..................................................................................................... 6
2.7 Decontamination Procedures ....................................................................................................... 7
2.8 Investigation Derived Waste ......................................................................................................... 7
3. DATA MANAGEMENT, EVALUATION AND REPORTING..................................... 7
3.1 Field Records ................................................................................................................................. 7
3.2 Sample Designation ....................................................................................................................... 7
3.3 Document Preparation................................................................................................................... 8
4. SCHEDULE .............................................................................................................. 8
5. REFERENCES ......................................................................................................... 9
Sidewalk Greenville Soil Gas Constituents of Concern and Pace
Analytical Reporting Limits by EPA TO15.
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The site is located at 513, 519 and 523 South Pitt Street in Greenville, Pitt County, North Carolina
(Exhibit 1). Based on information from the Pitt County Online Parcel Information System (OPIS),
the site is comprised of three adjoining parcels that total approximately 2.39 acres and are Parcel
ID Numbers 16544, 11307 and 09676. The site is currently mostly developed as an asphalt
parking lot with isolated islands, with the exception of an approximately 1,900 square foot (sf)
church building located in the southwest corner of the site.
Terracon completed a geotechnical investigation in support of the proposed development. During
the investigation, site soils generally consisted of clayey sands or silty clayey sands to a depth of
75 feet. Depth to groundwater after allowing the groundwater to stabilize was approximately 10.5
to 16.5 feet below the ground surface.
Terracon completed a Phase I Environmental Site Assessment (Terracon Project No. 72167027)
for a portion of the site dated April 15, 2016. Several on-site recognized environmental conditions
(RECs) were identified in connection with the site. The RECs are listed in the table below.
On-site RECs:
A former filling station with gas tanks observed on Sanborn maps from 1929 to 1958.
in the southern portion of the site from 1929 to 1958.
A building labeled
Sanborn map.
April 2016 ESA, Sidewalk Greenville, LLC, requested an
investigation to evaluate RECs with respect to current and historical uses of the site.
A Limited Site Investigation (LSI) was conducted subsequent to the 2016 Phase I ESA. Exhibit 2
provides the sample locations from this investigation. The LSI included a ground penetrating
radar (GPR) survey in order to scan the site for orphan USTs in the southern portion of the site,
the advancement of 6 soil borings, the collection and analysis of 6 soil samples and the
installation, sampling and analysis of six temporary monitoring wells.
The GPR survey identified one area in the vicinity of the former filling station that appeared to be
an area of less dense soils, a possible indication of the location of a former UST basin. One soil
boring was conducted in this area and the samples obtained were analyzed to be below the
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The results of the soil and ground water samples collected during the LSI identified the following:
Soil Boring 6, collected in the vicinity of the former dry cleaning building and a former gas
tank was analyzed to contain 1-Methylnapthalene, p-isopropyltoluene and Naphthalene
above NCDEQs Soil-to-Water Maximum Contaminant Concentrations.
Constituents in the 5 other soil samples collected were analyzed to be non-detect (ND) and
below NCDEQs Soil-to-Water Maximum Contaminant Concentrations.
Groundwater samples 1 and 2 collected in the vicinity of the former automotive repair shop
were analyzed to contain cis-1,2-Dichloroethene, Tetracholoethene (PCE) and
Trichoroethene (TCE) above NCDEQs 2L groundwater standards.
Constituents in the 4 other groundwater samples were analyzed to be ND.
Of note, a second Phase I Environmental Site Assessment dated November 18, 2016 was
conducted for the site, which included an additional parcel to the southwest of the original
site plan (Parcel Identification Number 09676).
RECs identified during the November 2016 ESA were
1946 Sanborn map now a part of the site.
An eligibility application was submitted and subsequently approved for the property to be
accepted into the North Carolina Brownfields Program administered by NCDEQ. The application
April 15, 2016
Phase I ESA and May 2016 LSI.
The objective of this work plan is to present a plan for assessing site conditions and to
characterize potential impacts. Analytical data can be used in the evaluation of future risk as well
as identification of soil management options during redevelopment. Site assessment will consist
of the following activities:
Evaluation for potential soil vapor impacts from the on-site RECs not previously addressed
by the Terracon 2016 LSI;
Evaluation for potential soil impacts from chromium and lead in the area of the former auto
repair shop;
Evaluation of soils within the footprint of the swimming pool at the anticipated base of the
excavation to ensure worker safety during the pool construction activities;
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These activities will be completed through the completion of soil borings, soil sampling and soil
vapor sampling.
The following sections detail the proposed approach and methods to conduct additional
assessment of the site.
At least three business days prior to intrusive activities, Terracon will submit a locate request to
the public utility locator, NC 811 to arrange for the locating of underground public utilities from the
street up to the utility meter. As an added measure of safety, Terracon will subcontract a private
utility locator in an attempt to locate and mark public utilities beyond the meter.
Two soil borings will be advanced via direct push technology (DPT) drilling techniques in the
area of the former auto repair shop (SB-1 and SB-. The
borings will be placed next to the former SB-1 and SB-2 locations and advanced to 4 feet below
ground surface (bgs), the depth of soil disturbance expected during construction in this area.
Soil samples will be analyzed for total chromium and lead and volatile organic compounds
(VOCs) using EPA Method 8260.
Four borings to be placed within the footprint of the swimming pool and advanced to approximately
7 to 8 ft. bgs., the anticipated base of the excavation as part of soil assessment to ensure worker
safety during pool construction activities. These four samples will also provide background
concentrations of metals in soils at the site as this area is not believed to be impacted by a
contaminant source.
Soil samples will be collected continuously, logged for lithology and will be field screened at 2.5-
foot intervals using a photoionization detector (PID) and/or a PetroFLAG TPH Analyzer System
(PF-MTR-01). Each soil boring will be advanced to between 7 and 8 ft. bgs., the expected depth
of disturbed soil beneath the base of the proposed swimming pool excavation.
One sample will be collected from the estimated base of the disturbed soil beneath the pool. Soil
samples will be analyzed for the following:
volatile organic compounds (VOCs) using EPA Method 8260(B, or current version);
semi-volatile organic compounds (SVOCs) using EPA Method 8270(D, or current version);
and
Resource Conservation and Recovery Act (RCRA) 8 Metals using EPA Method 6010/7471.
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An additional sample may be collected from each boring at an interval exhibiting elevated
screening levels, if applicable, and analyzed for VOCs.
Should the laboratory analytical results for the soil samples indicate that any RCRA metals are
detected at 20 times the regulatory level for D-listed waste, the soil will be re-analyzed after the
same soil sample has been extracted by EPA Method 1311 (TCLP) and re-tested for those metals
that exceeded 20 times the leachate regulatory limit. Terracon staff will note on the comment
portion of the chain of custody that TCLP extraction may be required pending the results of the
total metals analysis.
Any surficial soil that will not be covered with hardscape after redevelopment will be addressed in
the Environmental Management Plan.
Currently, groundwater investigations are not required by the NCDEQ Brownfields Section as part
of this Work Plan.
Five temporary soil vapor monitoring points will be installed to evaluate soil vapor beneath the
proposed commercial club house, retail and office space areas and one in the vicinity of the
elevator/stairway/shaft identified on project documents and shown on Exhibit 3. The soil vapor points
will be installed and constructed in general accordance with
Vapor Intrusion Guidance (April 2014) and/or the IHSB Supplemental Guidelines (February 2017).
The soil vapor monitoring points will be constructed in a borehole advanced with DPT drilling
techniques. The borehole termination depth will be at the approximate depth of at least five feet
below current grade and at least two feet above the water table. If refusal is encountered prior to
advancing to the desired depth, the screen depth of the probe will be adjusted accordingly or the
point may be relocated or eliminated. Each sample point will be constructed using six-inch stainless
steel screens with barbed fittings to connect to small bore (0.25 inches O.D.) Teflon®-lined sample
tubing. A sand filter pack will be placed within the annulus to a height of six inches above the screen
point. A one-foot thick layer of dry, granular (No. 20) bentonite will be placed in the borehole annulus
above the sand pack followed by a layer of bentonite hydrated with deionized water to the land
surface.
The soil vapor monitoring point will be allowed to equilibrate for a minimum of 2 hours after installation
before a sample is collected. Prior to sample collection, a minimum of three volumes will be
evacuated followed by a tracer test. Soil vapor samples will be collected using an inline
purge/sampling manifold consisting of a 6-liter purge Summa canister and a 1-liter Summa canister
sampler and connected to a critical orifice flow restrictor (flow controller). The flow controller will be
used to reduce the vacuum induced on the tubing and soils to allow for purging and sampling at a
controlled rate of 200 milliliters per minute or less.
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Tubing and flow controller connections will be made using compression fittings (e.g., Swagelok).
Summa canisters will be obtained from the laboratory and certified at the project-specific level.
Canisters will be fitted with a vacuum gauge, under a vacuum of 25 to 30 inches of Mercury (Hg).
A shut-in test will be conducted to check for leaks in the above-ground purge/sampling
manifold. The flow controller influent will be sealed with a cap and the purge canister valve will
be opened to create a negative pressure reading on the manifold pressure gauge. If there is an
observable loss of vacuum, the fittings will be adjusted until the vacuum in the sample train does
not noticeably dissipate.
Following the shut-in test, the purge/sampling manifold will be connected to the sub-slab soil
vapor sampling point and a Helium tracer gas leak test will be conducted. The tracer gas
serves as a quality assurance/quality control (QA/QC) device to verify the integrity of the soil
vapor probe seal. A field instrument capable of detecting helium will be used to verify the
presence and concentration of tracer gas.
The protocol for using a tracer gas is to enclose the sampling manifold and tubing/ground
interface with a shroud, enrich the atmosphere within the shroud with approximately 10 percent
helium. The purge canister will be placed outside of the shroud connected with the sampling
manifold by Teflon® lined tubing running through the shroud. A minimum of three volumes will
be evacuated from the sample point using the purge canister. One purge volume includes the
internal tubing volume, volume of sand pack void space, and volume of dry bentonite void
space.
Purge samples can also be collected and screened in a Tedlar® bag using a hand pump. If the
concentration of the tracer compound in the purge sample is greater than or equal to five
percent of the tracer compound concentration in the shroud then the probe will be re-sealed or
re-constructed.
A helium tracer gas leak test will be conducted prior to sampling. The tracer gas serves as a quality
assurance/quality control (QA/QC) method to verify the integrity of the soil vapor point seal. A field
instrument capable of measuring helium concentrations down to 25 parts per million will be used to
verify the presence and concentration of tracer gas. The protocol for using a tracer gas is to enclose
the tubing and ground interface with a shroud and saturate the shroud atmosphere with helium.
Approximately three purge volumes will be manually evacuated through Teflon® lined tubing that
passes through the shroud. Purge samples will be screened for helium to assess for leaks in the
well seal after removal of each well volume. If helium concentrations are less than ten percent of the
helium concentration in the shroud, the annulus will be considered sufficiently sealed.
Following the helium leak test, the sample canister valve will be opened to collect soil vapor for
laboratory analysis. Helium concentrations inside the shroud will be monitored and maintained at
approximately 10 percent for the duration of sampling. The sample canister valve will be closed when
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the gauge measures less than 6 inches of Hg vacuum (i.e. sampling is complete). The final vacuum
will not be allowed to get to 0 inches Hg vacuum.
Pace Analytical Services will be contacted in advance of the soil vapor sampling event to ensure
that they will record the vacuum in the sample canister prior to analysis. The sampler will also ask
the lab to record -of-custody
form for the canisters. The laboratory vacuum readings will be compared to the post-sampling
vacuums recorded in the field notes.
A deadhead-test will be completed on sampling equipment connections prior to use to detect and
prevent leaks. The samples collected from each soil vapor monitoring point will be submitted for
laboratory analysis for VOCs by EPA Method TO 15 for petroleum and solvent constituents.
Soil Gas Screening Levels. Constituents of concern to be tested, the method detection and Pace
Reporting limits are provided in Appendix B. New dedicated tubing/fittings will be used for each soil
gas sampling train.
Sample custody procedures shall be performed to document preparation, handling, storage, and
shipping of all samples collected during the project. The samples collected from the site will be
the responsibility of authorized personnel from the time they are collected until they, or their
derived data, are provided to Terracon. Chain-of-custody forms will be completed and will
accompany the collected samples.
Sample packaging and shipment will be conducted in general accordance with the NCDEQ and
USEPA guidelines. Soil samples will be collected directly into laboratory-provided sample
containers. Each glass container will be bubble wrapped and placed into a sealed plastic bag.
Samples will subsequently be placed into a cooler of ice at less than 4 degrees Celsius (oC).
Signed and dated custody seals will be affixed to each cooler to ensure that no tampering with
the contents occurs.
Summa canisters will be placed into plastic shipping crates or cardboard boxes and sealed with
signed and dated custody seals. They will be shipped to the laboratory overnight at ambient
temperature.
Each soil boring and soil vapor point location will be located by based
on their location with respect to various elements of the site redevelopment plan such as the
location of the pool and first-floor commercial space. The East Group provided Terracon with the
estimated depth to the base of the swimming pool at those four locations and the depth of soil
disturbance near SB-1/SB-2.
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Drilling and sampling equipment used in the field investigation at the site will be decontaminated
prior to use and between sample collections. Cleaning of equipment is performed to prevent
cross-contamination between samples and to maintain a clean working environment for all
personnel. Drilling equipment will be decontaminated using a hot water pressure-washer.
Sampling equipment decontamination will be completed through a multi-step process. Sampling
equipment will initially be cleaned with municipal tap or distilled water and a laboratory grade non-
phosphate detergent using a brush followed by a deionized water rinse and air dried.
Decontaminated sampling equipment will be lightly covered during the air-dry procedure if
equipment will be re-used again or wrapped with aluminum foil and placed in a plastic bag for
storage.
Based on existing analytical data, soil and groundwater are impacted with petroleum and solvent
contamination. Investigation Derived Waste (IDW) for this scope of services includes soil cuttings
and decontamination water. The IDW will be containerized pending laboratory analysis and
manifested off-site to an appropriate disposal facility,
Documentation of the field operations will be achieved through written daily reports in a field
logbook. Pages in the field books shall be dated, legible, and contain accurate and inclusive
aspects of sample
collection and handling as well as visual observations. Entry errors/corrections will be initialed
and dated.
Other field records such as boring logs and sampling logs will be kept for the field investigation,
along with a collection of documents generated in the field (e.g., shipping records). At the
completion of the field investigation, the logbook will be returned to the office, and the field logs
scanned and maintained electronically in a project folder, as well as included as an appendix to
the final report.
Each field sample will be assigned a unique sample identifier. Codes used to identify re-analyzed
samples and samples re-analyzed at a secondary dilution will be appended by the laboratory and
included in all laboratory deliverables. The sample identifier will be shown on the chain-of-custody
form and sample container labels and tags. The sample identifier will be linked to a sample
location name that includes an indication of depth in field notebooks.
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Terracon has a 100% commitment to the safety of all its employees. As such, and in accordance
with our Incident and Injury Free® (IIF®) safety culture, Terracon will prepare a health and safety
plan (HASP) for use by our personnel during field services. The HASP will be prepared in
compliance with Title 29 Code of Federal Regulations 1910.120 Hazardous Waste Sites
Operations and Emergency Response and Hazard Communication. The HASP will include
activities identified in this work plan. Plans for evaluating potential site hazards and minimizing
exposure for site workers associated with the proposed site activities will be included in the HASP.
Prior to commencement of on-site activities, Terracon will hold a meeting to review health and
safety needs for this specific project. At this time, we anticipate performing fieldwork in USEPA
Level D work attire consisting of hard hats, safety glasses, protective gloves, and steel-toed boots.
It may become necessary to upgrade this level of protection, at additional cost, in the event that
petroleum or chemical constituents are encountered in soils or groundwater that present an
increased risk for personal exposure.
Upon completion of site activities and receipt of the laboratory analytical results, a Brownfields
Assessment Report will be prepared that will include the following items:
Soil boring logs;
will be conducted under the supervision of a North
Carolina registered professional geologist or engineer.
The assessment work will be completed on an as needed or requested basis. The completed
Brownfields Assessment Report will be available within four to five weeks following the completion
of field activities. The findings, comments and recommendations presented in the written report
will be based on the information collected as discussed in this proposal.
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ITRC, 2007. Interstate Technology and Research Council Vapor Intrusion Pathway: A
Practical Guidance
Division of Waste Management, 2014. NCDEQ, Vapor Intrusion Guidance
Terracon, 2016. Phase I Environmental Site Assessment dated April 15, 2016
Terracon, 2016. Limited Site Investigation dated May 27, 2016
IHSB, 2017, NCDEQ, Steps in Conducting Structural Vapor Intrusion Potential Evaluations Under
the Inactive Hazardous Sites Branch
Appendix A
Figures
Appendix B
Tables
Pace Analytical Services, LLC
Method Detection Limits and Reporting Limits
by EPA TO15
DUP
Analyte CAS #MDL (ppbv)PRL (ppbv)MW MDL (ug/m3)PRL (ug/m3)Lower Upper RPD
1,1,1-Trichloroethane 71-55-6 0.0170 0.2 133.4047 0.094 1.109 60 143 25
1,1,2,2-Tetrachloroethane 79-34-5 0.0300 0.1 167.8498 0.209 0.698 49 150 25
1,1,2-Trichloroethane 79-00-5 0.0130 0.1 133.4047 0.072 0.555 57 149 25
1,1,2-Trichlorotrifluoroethane 76-13-1 0.0190 0.2 187.3762 0.148 1.558 66 131 25
1,1-Dichloroethane 75-34-3 0.0160 0.2 98.9596 0.066 0.823 62 139 25
1,1-Dichloroethene 75-35-4 0.0160 0.2 96.9438 0.064 0.806 62 135 25
1,2,4-Trichlorobenzene 120-82-1 0.055 0.5 181.4487 0.415 3.772 55 146 25
1,2,4-Trimethylbenzene 95-63-6 0.0200 0.2 120.1938 0.100 0.999 57 143 25
1,2-Dibromoethane 106-93-4 0.0150 0.2 187.8616 0.117 1.562 63 150 25
1,2-Dichlorobenzene 95-50-1 0.0300 0.2 147.0036 0.183 1.222 57 141 25
1,2-Dichloroethane 107-06-2 0.0170 0.1 98.9596 0.070 0.411 61 144 25
1,2-Dichloropropane 78-87-5 0.0310 0.2 112.9864 0.146 0.939 63 144 25
1,3,5-Trimethylbenzene 108-67-8 0.0480 0.2 120.1938 0.240 0.999 54 147 25
1,3-Butadiene 106-99-0 0.0270 0.2 54.0914 0.061 0.450 61 140 25
1,3-Dichlorobenzene 541-73-1 0.0180 0.2 147.0036 0.110 1.222 51 150 25
1,4-Dichlorobenzene 106-46-7 0.0150 0.2 147.0036 0.092 1.222 57 143 25
2-Butanone (MEK)78-93-3 0.1000 1 72.1057 0.300 2.998 66 144 25
2-Hexanone 591-78-6 0.1000 1 100.1589 0.416 4.164 63 147 25
2-Propanol 67-63-0 0.0980 1 60.1 0.245 2.498 54 146 25
4-Ethyltoluene 622-96-8 0.0180 0.2 120.1938 0.090 0.999 56 150 25
4-Methyl-2-pentanone (MIBK)108-10-1 0.0650 1 100.1602 0.271 4.164 58 150 25
Acetone 67-64-1 0.3600 1 58.0798 0.869 2.414 46 140 25
Benzene 71-43-2 0.0280 0.1 78.1134 0.091 0.325 62 141 25
Benzyl Chloride 100-44-7 0.0420 0.2 126.58 0.221 1.052 66 138 25
Bromodichloromethane 75-27-4 0.0260 0.2 163.8289 0.177 1.362 58 149 25
Bromoform 75-25-2 0.0250 0.2 252.7309 0.263 2.101 61 150 25
Bromomethane 74-83-9 0.0280 0.2 94.9387 0.111 0.789 58 136 25
Carbon Disulfide 75-15-0 0.0190 0.2 76.131 0.060 0.633 59 135 25
Carbon tetrachloride 56-23-5 0.0260 0.1 153.823 0.166 0.639 60 149 25
Chlorobenzene 108-90-7 0.0230 0.2 112.5585 0.108 0.936 60 150 25
Chloroethane 75-00-3 0.0520 0.2 64.5145 0.139 0.536 61 136 25
LCS
JMW 11.11.16
Pace Analytical Services, LLC
1700 Elm Street SE, Suite 200 Minneapolis, MN 55414
612-607-1700
www.pacelabs.com
Pace Analytical Services, LLC
Method Detection Limits and Reporting Limits
by EPA TO15
DUP
Analyte CAS #MDL (ppbv)PRL (ppbv)MW MDL (ug/m3)PRL (ug/m3)Lower Upper RPD
Chloroform 67-66-3 0.0220 0.1 119.3779 0.109 0.496 65 138 25
Chloromethane 74-87-3 0.021 0.2 50.4877 0.044 0.420 62 133 25
cis-1,2-Dichloroethene 156-59-2 0.0220 0.2 96.9438 0.089 0.806 65 139 25
cis-1,3-Dichloropropene 10061-01-5 0.0240 0.2 110.9706 0.111 0.923 61 149 25
Cyclohexane 110-82-7 0.0390 0.2 84.1608 0.136 0.700 64 134 25
Dibromochloromethane 124-48-1 0.0220 0.2 208.2799 0.190 1.732 59 158 25
Dichlorodifluoromethane 75-71-8 0.0150 0.2 120.9138 0.075 1.005 63 134 25
Dichlorotetrafluoroethane 76-14-2 0.0140 0.2 170.9216 0.099 1.421 62 134 25
Ethanol 64-17-5 0.180 0.5 46.07 0.345 0.958 50 144 25
Ethyl Acetate 141-78-6 0.0580 0.2 88.106 0.212 0.733 55 146 25
Ethyl Benzene 100-41-4 0.0120 0.2 106.167 0.053 0.883 59 149 25
Hexachlorobutadiene 87-68-3 0.0340 0.2 260.762 0.369 2.168 42 150 25
m&p-Xylene 106-42-3 0.084 0.4 106.167 0.371 1.765 59 146 25
Methyl Tert Butyl Ether 1634-04-4 0.1000 1 88.1492 0.366 3.664 64 135 25
Methylene chloride 75-0902 0.055 1 84.9328 0.194 3.531 64 128 25
Naphthalene 91-20-3 0.0590 0.5 128.1732 0.314 2.664 46 146 25
n-Heptane 142-82-5 0.0420 0.2 100.2034 0.175 0.833 64 140 25
n-Hexane 110-54-3 0.0570 0.2 86.1766 0.204 0.716 50 138 25
o-Xylene 95-47-6 0.0570 0.2 106.167 0.252 0.883 54 149 25
Propylene 115-07-1 0.0330 0.2 42.0804 0.058 0.350 58 135 25
Styrene 100-42-5 0.0160 0.2 104.1512 0.069 0.866 54 150 25
Tetrachloroethene 127-18-4 0.0210 0.1 165.834 0.145 0.689 60 142 25
Tetrahydrofuran 109-99-9 0.0360 0.2 72.1066 0.108 0.600 56 143 25
Toluene 108-88-3 0.0610 0.2 92.1402 0.234 0.766 61 138 25
trans-1,2-dichloroethene 156-60-5 0.0270 0.2 96.9438 0.109 0.806 67 137 25
trans-1,3-Dichloropropene 10061-02-6 0.0280 0.2 110.9706 0.129 0.923 59 145 25
Trichloroethene 79-01-6 0.0250 0.1 131.3889 0.137 0.546 60 144 25
Trichlorofluoromethane 75-69-4 0.0160 0.2 137.3684 0.091 1.142 59 134 25
Vinyl Acetate 108-05-4 0.0410 0.2 86.0902 0.147 0.716 55 143 25
Vinyl chloride 75-01-4 0.0220 0.1 62.4987 0.057 0.260 63 135 25
LCS
JMW 11.11.16
Pace Analytical Services, LLC
1700 Elm Street SE, Suite 200 Minneapolis, MN 55414
612-607-1700
www.pacelabs.com
Pace Analytical Services, LLC
Method Detection Limits and Reporting Limits
by EPA TO15
EXTRA ANALYTES (available upon request at an additional cost)
DUP
Analyte CAS #MDL (ppbv)PRL (ppbv)MW MDL (ug/m3)PRL (ug/m3)Lower Upper RPD
1,2,3-Trimethylbenzene 108-67-8 0.0130 0.2 120.19 0.065 0.999 54 147 25
Chlorodifluoromethane 75-45-6 0.0270 0.2 86.47 0.097 0.719 70 130 25
Di-isopropyl Ether 108-20-3 0.1600 1 102.1748 0.680 4.248 70 130 25
Ethyl Tert-Butyl Ether 637-92-3 0.1500 1 102.1748 0.637 4.248 70 130 25
Isopentane 78-78-4 0.0680 0.2 72.15 0.204 0.600 70 130 25
Methylcyclohexane 108-87-2 0.0470 0.2 98.186 0.192 0.816 70 130 25
Methyl Methacrylate 80-62-6 0.0430 0.2 114.14 0.204 0.949 70 130 25
p-Isopropyltoluene 99-87-6 0.0550 0.2 134.22 0.307 1.116 70 130 25
Tert Amyl Methyl Ether 994-05-8 0.0920 1 102.1748 0.391 4.248 70 130 25
Tert-Butyl Benzene 98-06-6 0.0390 0.2 166.217 0.269 1.382 70 130 25
1,4-Dioxane 123-91-1 0.0880 1 88.1051 0.322 3.663 58 144 25
2,2,4-Trimethylpentane 540-84-1 0.1100 0.5 114.22 0.522 2.374 74 138 25
Acrolein 107-02-8 0.1200 0.5 56.06 0.280 1.165 68 138 25
Acrylonitrile 107-13-1 0.1200 0.5 53.06 0.265 1.103 70 141 25
Allyl Chloride 107-05-1 0.0940 0.5 76.525 0.299 1.591 65 146 25
N-Butylbenzene 104-51-8 0.0320 0.5 134.2206 0.179 2.790 63 146 25
N-Propylbenzene 103-65-1 0.0270 0.5 120.1938 0.135 2.498 66 143 25
Sec- Butylbenzene 135-98-8 0.0320 0.5 134.2206 0.179 2.790 65 142 25
Tert Butyl Alcohol (TBA)75-65-0 0.1000 1 74.12 0.308 3.081 58 150 25
Vinyl Bromide 593-60-2 0.0310 1 106.95 0.138 4.446 67 142 25
Isopropylbenzene 98-82-8 0.0190 0.5 120.194 0.095 2.498 65 150 25
THC as gas 11.95 23.9 51.875 103.750 70 130 25
Xylene (Total)1330-20-7 0.084 0.6 106.17 0.371 2.648 66 146 25
Surrogates
1,4-Dichlorobenzene-d4 (S)3855-82-1 59 125
Hexane-d14 (S)21666-38-6 75 125
Toluene-d8 (S)2037-26-5 75 125
LCS
JMW 11.11.16
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