22081_Former PE Valve_ Brownfields Assessment Work Plan_08.13.2019

BROWNFIELDS ASSESSMENT WORK PLAN
FORMER PE VALVE MANUFACTURING
1140 SWEETEN CREEK ROAD
ASHEVILLE, BUNCOMBE COUNTY, NORTH CAROLINA
BROWNFIELDS PROJECT ID: 22081-18-11
ECS PROJECT NO. 49-7572-B
PREPARED FOR
PETER HALL
AUGUST 9, 2019
Brownfields Assessment Work Plan
Former PE Valve Manufacturing
1140 Sweeten Creek Road
Asheville, Buncombe County, North Carolina
Brownfileds Project ID: 22081-18-11
ECS Project No. 49-7572-B
August 9, 2019

2
Table of Contents
1.0 PROJECT INFORMATION ........................................................................................................................................ 3
2.0 SCOPE OF WORK .................................................................................................................................................... 5
3.0 SAMPLING METHODOLOGY & LABORATORY ANALYSIS ....................................................................................... 5
4.0 REPORTING ............................................................................................................................................................. 7

TABLES

Table 1 Proposed Sample Locations and Analyses

FIGURES

Figure 1 Site Topographic Map
Figure 2 Proposed Soil Gas Sample Location Map

APPENDICES

Appendix A Target Analyte List from Pace Analytical Services, LLC for EPA Method TO-15

Brownfields Assessment Work Plan
Former PE Valve Manufacturing
1140 Sweeten Creek Road
Asheville, Buncombe County, North Carolina
Brownfileds Project ID: 22081-18-11
ECS Project No. 49-7572-B
August 9, 2019

3
1.0 PROJECT INFORMATION

The former PE Valve property is located at 1140 Sweeten Creek Road in Ashville, Buncombe County,
North Carolina (Figure 1). The property is approximately 1.63 acres in size and is currently utilized as a
vacant lot. A Limited Phase II Environmental Site Assessment (Phase II ESA) dated March 8, 2010 and
completed by Bunnell-Lammons Engineering, Inc. (BLE) indicated that BLE also previously completed a
Phase I ESA dated March 4, 2010 for the subject property. The Phase I ESA indicated that a 30,302
square foot industrial manufacturing building was developed on the subject property which was
previously used for textile manufacturing. In 1968, the building was used as a valve manufacturing
facility. During the completion of the Phase I ESA, the building was vacant. The Phase I ESA identified the
following recognized environmental conditions (RECs) with respect to the subject site:

 Rusted 55-gallon drums located on the southern side of the building, of which the historic
contents are unknown;
 An above ground storage tank (AST) located on the southern side of the building;
 Staining along the northern wall of the building;
 A loading dock with floor drains;
 Two ASTs located on the interior of the building;
 Multiple 55-gallon drums and 5-gallon buckets of waste oil, waste coolant, and unidentified
liquids inside the building;
 Heavy staining on the floor of the building; and
 A network of floor drains located inside the building.

As part of the assessment activities conducted by BLE for the Limited Phase II ESA, four borings were
advanced for the purposes of collecting groundwater samples. The borings were located downgradient
and west of the building (BL-1), downgradient and near the northwest corner of the subject property
(BL-2), downgradient of an AST and near the southwest corner of the building (BL-3), and adjacent to the
loading dock (BL-4). The borings were advanced with a Geoprobe® drill rig to refusal, which was
approximately 25 feet below the ground surface (bgs). Groundwater was identified at approximately 20
feet bgs. Four hand auger borings were advanced within the building for the purposes of collecting soil
samples. The borings were located adjacent to 55-gallon drums, ASTs, and 5-gallon buckets (HAB-1),
inside the machining room where heavy staining was observed (HAB-2), inside the paint room (HAB-3),
and adjacent to a floor drain in the southern portion of the building (HAB-4).

Trichloroethene (TCE) was identified at concentrations above the North Carolina 2L Groundwater
Quality Standard (NC2LGWQS) in groundwater samples BL-2, BL-3, and BL-4. Chromium was identified at
concentrations above the Inactive Hazardous Sites Branch (IHSB) Preliminary Soil Remediation Goal
(PSRG) in soil samples HAB-1, HAB-2, and HAB-2. Selenium was identified at a concentration above the
IHSB PSRG in soil sample HAB-4.

ECS conducted a Soil and Groundwater Assessment at the subject property similar in scope to the Phase
II ESA conducted by BLE (ECS Project Number 49-7572, dated October 11, 2018). However, during the
assessment conducted by ECS, the building was no longer present and the property was undeveloped.
ECS’ Soil and Groundwater Assessment included six soil borings for the collection of soil samples. Arsenic
Brownfields Assessment Work Plan
Former PE Valve Manufacturing
1140 Sweeten Creek Road
Asheville, Buncombe County, North Carolina
Brownfileds Project ID: 22081-18-11
ECS Project No. 49-7572-B
August 9, 2019

4
and hexavalent chromium were identified at concentrations exceeding the IHSB Health-Based PSRGs in
each of the soil samples. Three of the soil borings were advanced for the collection of groundwater
samples. A fourth groundwater sample was collected from the northwestern corner of the subject
property. The groundwater sample collected from the southern portion of the subject property
identified TCE at a concentration exceeding the NC2LGWQS and the Vapor Intrusion Screening Levels
(VISLs). ECS recommended a soil gas assessment be conducted to evaluate vapor intrusion concerns and
concluded that the property appears to be a candidate for eligibility into the North Carolina Brownfields
Program (NCBP).

After ECS conducted the assessment, the property owner, Mr. Peter Hall, applied for eligibility into the
NCBP. On May 2, 2019, Mr. Hall obtained a Letter of Eligibility from the NCBP. The NCBP also requested
additional assessment. According to a Request for Additional Assessment (RAA) letter dated June 14,
2019, the NCBP is requesting soil gas sampling, a historical file review, and the completion of a
Brownfields Receptor Survey.

The purpose of this work plan is to address data gaps in the previous assessment activities and create a
baseline for the Brownfields Redevelopment by conducting additional sampling activities. This work plan
is intended for use by the NCBP and no other agencies. ECS intends to implement the assessment
activities which are included in this work plan addendum to address remaining points in the RAA letter:

 The advancement of 5 soil borings for the purposes of soil gas sampling at locations evenly
dispersed across the subject property. The locations were provided by the NCBP and are
depicted on the attached figure.
 Completion of a Brownfields Receptor Survey.
 Completion of a Phase I Environmental Site Assessment (Phase I ESA).

The contact information for the property owner, environmental consultant, and the NCBP is as follows:

Owner and Developer’s Representative:
Mr. Peter Hall
63 Mountain View Drive
Arden, North Carolina 28704
Phone: [phone]
[e-mail]

Site Environmental Representative:
Mr. James Bevers, PE
ECS Southeast, LLP
1900 Hendersonville Road, Suite 10
Asheville, North Carolina 28803
Phone: [phone]
[e-mail]

Brownfields Assessment Work Plan
Former PE Valve Manufacturing
1140 Sweeten Creek Road
Asheville, Buncombe County, North Carolina
Brownfileds Project ID: 22081-18-11
ECS Project No. 49-7572-B
August 9, 2019

5
North Carolina Brownfields Program (NCBP) Contact:
Mr. Cody Cannon, Brownfields Project Manager
Phone: [phone]
[e-mail]
Mr. Cody Cannon, the NCBP Project Manager, will be notified (5) days prior to starting the field work.

2.0 SCOPE OF WORK

Based on the on RAA by the NCBP, ECS recommends the compeltion of Soil Gas sampling, a historical file
review in the form of a Phase I ESA, and a Brownfields Receptor Survey for the subject property. The
assessment will be conducted in general accordance with the October 2015 IHSB Guidelines for
Assessment and Cleanup and EPA Region IV's Science and Ecosystem Support Division (SESD) Field
Branches Quality System and Technical Procedures.

SOIL GAS SAMPLING
 Five soil gas sample locations will be evenly dispersed across the subject property. A duplicate soil
gas sample will be collected at one of the locations per the NCBP RAA. The locations of the soil gas
samples are provided on the attached figure and were the suggested locations by the NCBP.
 Soil gas samples will be analyzed for volatile organic compounds (VOCs) by EPA Method TO-15.

HISTORCAL FILE REVIEW
Phase I ESA
The Phase I ESA will be prepared in general accordance with ASTM Standard E1527-13, Standard
Practice for Phase I Environmental Site Assessments.

BROWNFIELDS RECEPTOR SURVEY
ECS will conduct a Brownfields Receptor Survey, which includes: determining the current and proposed
use(s) of the site; location of buried utilities; conducting a driving reconnaissance to identify wells
and/or a municipal water supply within 1,000 feet of the site; and contacting the municipality to identify
locations of the municipal water system and properties that are not provided with municipal water. The
information will be included on a Brownfields Receptor form.

3.0 SAMPLING METHODOLOGY & LABORATORY ANALYSIS

The soil gas sampling will be conducted in general accordance with the North Carolina Department of
Environmental Quality - Division of Waste Management’s (NCDEQ-DWM) Inactive Hazardous Site
Program’s Guidelines for Assessment and Cleanup (Revised October 2015) and the NCDEQ-DWM Vapor
Intrusion Guidance (March 2018).

 The soil gas sample points will be drilled with the Geoprobe® drill rig to an approximate depth of 10
feet bgs or to a depth above the groundwater table if groundwater is encountered less than 10 feet
bgs. Investigative derived waste (IDW) generated from the soil borings (ie., soil cuttings) will be
thinly spread onsite in the vicinity of the boring location, unless impacted soil is apparent based on
Brownfields Assessment Work Plan
Former PE Valve Manufacturing
1140 Sweeten Creek Road
Asheville, Buncombe County, North Carolina
Brownfileds Project ID: 22081-18-11
ECS Project No. 49-7572-B
August 9, 2019

6
field observations (i.e. visual and/or olfactory senses or elevated PID readings). If soil cuttings
appear to be impacted, the soil cuttings will be containerized. If soil cuttings are is containerized,
additional waste characterization will be proposed and detailed in a separate work plan.
 A probe consisting of vapor implant and Nylafow or teflon® tubing will be placed into the hole. The
space around and approximetely 6 inches above the vapor impant will be backfilled with sand. The
space above the sand will be sealed with hydrated bentonite. The vapor probe and tubing will be
purged by removing three volumes of the probe and associated tubing prior to sampling after
allowing the bentonite to hydrate for at least 30 minutes.
 Before collecting the soil gas sample, a tracer gas will be used to serve as a quality assurance/quality
control measure to verify the integrity of the probe seal. A plastic container will be placed and
sealed over the sampling point and purged with laboratory grade helium. During the purging stage,
a steady supply of helium will be released from the tank via a hose placed through the wall of the
plastic container. A Model MGD-2002 Multi-Gas Leak detector or similar device will be connected to
the sampling port and the air stream being purged will be measured for helium using the detector to
evaluate the integrity of the slab seal. If the concentration of measured helium concentration is less
than 10 percent of the helium concentration inside the shroud, the seal on the soil gas probe will be
considered to be tight and not leaking. If the test results are not acceptable, ECS will take steps to
achieve a better seal and repeat the test until the results are acceptable. A shut-in test will also be
conducted to check the sampling set-up for leaks prior to initiating sampling.
 Following purging, the tubing will be connected to a 1 liter (L) Summa canister, which will be used to
collect soil gas from the pores in the soil. The Summa canister will be fitted with an air flow regulator
set to collect the soil gas sample at a rate of 0.2 L/min. The Summa canisters used for this project
will be batch certified.
 ECS will check and note the vacuum on each Summa canister before initiating the sampling
procedure. ECS will terminate the sampling procedure at each sampling point while vacuum is still
present in the canister. ECS anticipates terminating sampling when vacuum decreases below 8
inches of mercury (in-Hg) and before it decreases below 5 in-Hg. ECS will note the vacuum for each
canister at the end of the sampling procedure.
 Following sample collection, each Summa canister will be labeled and maintained under chain-of-
custody (COC) until delivered to Con-Test Analytical Laboratory (Con-Test) located in East
Longmeadow, Massachusetes. A COC document will be utilized throughout the collection and
transportation of the samples. The samples will be analyzed for volatile organic compounds (VOCs)
using EPA Method TO-15. Con-Test is accredited by the Industrial Hygiene Laboratory Accreditation
Program (IHLAP) (Laboratory Identification 100033) for EPA Method TO-15.
 The laboratory analytical results will be included with the report. The laboratory analytical results
will include a Level II Quality Assurance/Quality Control (QA/QC). QC concerns and data qualifiers or
flags will be reported in the laboratory analytical results and the reporting/method detection limits
will meet applicable screening criteria. ECS will request that the method detection limits (MDL) and
J-flags (estimated concentrations between the method detection limits and the laboratory reporting
limit) be included in laboratory reports. COC and a signed statement from the lab attesting good
sample conditions will also be included with the laboratory analytical results.
Brownfields Assessment Work Plan
Former PE Valve Manufacturing
1140 Sweeten Creek Road
Asheville, Buncombe County, North Carolina
Brownfileds Project ID: 22081-18-11
ECS Project No. 49-7572-B
August 9, 2019

7
 The probes will be removed and the borings sealed with grout upon completion.

4.0 REPORTING

SOIL GAS SAMPLING
At the completion of the environmental assessment activities, ECS will prepare a written report
documenting the field activities for the activities outlined in this work plan. The report will summarize
sampling procedures, sample locations, laboratory procedures and results, conclusions, and
recommendations for submission and approval by the NCBP. Soil gas sampling forms, field data, and the
Brownfields receptor survey will be included in the report. The report will include applicable tables with
comparisons against the NCDEQ Residential and Non-Residential Vapor Intrusion Screening Levels,
figures depicting the sample locations, and media sampled. The report will include the ECS License
Number and an individual PE/PG seal and signature.

HISTORCAL FILE REVIEW
The Phase I ESA, which will be prepared in general accordance with ASTM Standard E1527-13, Standard
Practice for Phase I Environmental Site Assessments, will be submitted in a separate report from the soil
gas sampling report.

BROWNFIELDS RECEPTOR SURVEY
The Brownfields Receptor Survey will be completed using the Brownfields Receptor form. The
Brownfields Receptor form and associated attachments will be submitted in a separate report from the
soil gas sampling report.

TABLES
TABLE 1: PROPOSED SAMPLE LOCATIONS & ANALYSIS
FORMER PE VALVE MANUFACTURING
1140 SWEETEN CREEK ROAD
ASHEVILLE, BUNCOMBE COUNTY, NORTH CAROLINA
BROWNFIELDS PROJECT NUMBER: 22081-18-11
ECS PROJECT NO. 49-7572-B
SG-1
SG-2
SG-3
SG-4
SG-5
SG DUPLICATE
Notes:
VOCs = Volatile Organic Compounds
TO-15
Sample Media
Soil Gas Samples
VOCs
TO-15
Laboratory Analysis
& Analytical Method
TO-15
TO-15
TO-15
TO-15

FIGURES
FIGURE 1SITE TOPOGRAPHIC MAP
FORMER PE VALVE
1140 SWEETEN CREEK ROAD
ASHEVILLE, BUNCOMBE COUNTY,
NORTH CAROLINA
ECS PROJECT NO. 49-7572-B
SOURCE:
USGS TOPOGRAPHIC MAP
ASHEVILLE, NORTH CAROLINAQUADRANGLE
DATED 1961, PHOTOREVISED 1991
SITE
FIGURE 2
PROPOSED SOIL GAS SAMPLE LOCATION
MAPFORMER PE VALVE FACILITY
1140 SWEETEN CREEK ROAD
ASHEVILLE, BUNCOMBE COUNTY,
NORTH CAROLINA
ECS PROJECT NO. 49-7572-B
SOURCE:
GOOGLE EARTH, DATED 2015
SCALE:
PROPOSED SOIL GAS SAMPLE LOCATION
APPROXIMATE SITE BOUNDARY
LEGEND
= 100 FEET
SG-5
SG-3
SG-2SG-1
SG-4

APPENDIX

Con-Test Analytical Laboratory 1/3/2019
Reporting
LimitMDL
Surrogate
%R
Duplicate
RPD
Matrix Spike
%R RPD
Blank Spike / LCS
%R RPDAnalyte
Analytical Method Information
TO-15 ppbv low level in Air (EPA TO-15)
30 daysSUMMA Canister
NA
Amount Required:
Preservation:
Container: Hold Time:
0.69 2.0 ppbv 25 70 - 130Acetone
0.021 0.050 ppbv 25 70 - 130Benzene
0.011 0.050 ppbv 25 70 - 130Benzyl chloride
0.018 0.050 ppbv 25 70 - 130Bromodichloromethane
0.022 0.050 ppbv 25 70 - 130Bromoform
0.034 0.050 ppbv 25 70 - 130Bromomethane
0.032 0.050 ppbv 25 70 - 1301,3-Butadiene
0.078 2.0 ppbv 25 70 - 1302-Butanone (MEK)
0.034 0.50 ppbv 25 70 - 130Carbon Disulfide
0.016 0.050 ppbv 25 70 - 130Carbon Tetrachloride
0.024 0.050 ppbv 25 70 - 130Chlorobenzene
0.030 0.050 ppbv 25 70 - 130Chloroethane
0.019 0.050 ppbv 25 70 - 130Chloroform
0.034 0.10 ppbv 25 70 - 130Chloromethane
0.036 0.050 ppbv 25 70 - 130Cyclohexane
0.017 0.050 ppbv 25 70 - 130Dibromochloromethane
0.020 0.050 ppbv 25 70 - 1301,2-Dibromoethane (EDB)
0.024 0.050 ppbv 25 70 - 1301,2-Dichlorobenzene
0.026 0.050 ppbv 25 70 - 1301,3-Dichlorobenzene
0.030 0.050 ppbv 25 70 - 1301,4-Dichlorobenzene
0.022 0.050 ppbv 25 70 - 130Dichlorodifluoromethane (Freon 12)
0.015 0.050 ppbv 25 70 - 1301,1-Dichloroethane
0.019 0.050 ppbv 25 70 - 1301,2-Dichloroethane
0.020 0.050 ppbv 25 70 - 1301,1-Dichloroethylene
0.020 0.050 ppbv 25 70 - 130cis-1,2-Dichloroethylene
0.020 0.050 ppbv 25 70 - 130trans-1,2-Dichloroethylene
0.018 0.050 ppbv 25 70 - 1301,2-Dichloropropane
0.018 0.050 ppbv 25 70 - 130cis-1,3-Dichloropropene
0.018 0.050 ppbv 25 70 - 130trans-1,3-Dichloropropene
0.025 0.050 ppbv 25 70 - 1301,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)
0.32 0.50 ppbv 25 70 - 1301,4-Dioxane
0.89 2.0 ppbv 25 70 - 130Ethanol
0.037 0.050 ppbv 25 70 - 130Ethyl Acetate
0.029 0.050 ppbv 25 70 - 130Ethylbenzene
0.030 0.050 ppbv 25 70 - 1304-Ethyltoluene
0.029 0.050 ppbv 25 70 - 130Heptane
0.023 0.050 ppbv 25 70 - 130Hexachlorobutadiene
0.088 2.0 ppbv 25 70 - 130Hexane
0.030 0.050 ppbv 25 70 - 1302-Hexanone (MBK)
0.061 2.0 ppbv 25 70 - 130Isopropanol
0.025 0.050 ppbv 25 70 - 130Methyl tert-Butyl Ether (MTBE)
0.061 0.50 ppbv 25 70 - 130Methylene Chloride
0.024 0.050 ppbv 25 70 - 1304-Methyl-2-pentanone (MIBK)
0.038 0.050 ppbv 25 70 - 130Naphthalene
0.050 2.0 ppbv 25 70 - 130Propene
0.031 0.050 ppbv 25 70 - 130Styrene
Page 1 of 2
Con-Test Analytical Laboratory 1/3/2019
Reporting
LimitMDL
Surrogate
%R
Duplicate
RPD
Matrix Spike
%R RPD
Blank Spike / LCS
%R RPDAnalyte
Analytical Method Information
0.022 0.050 ppbv 25 70 - 1301,1,2,2-Tetrachloroethane
0.028 0.050 ppbv 25 70 - 130Tetrachloroethylene
0.033 0.050 ppbv 25 70 - 130Tetrahydrofuran
0.026 0.050 ppbv 25 70 - 130Toluene
0.034 0.050 ppbv 25 70 - 1301,2,4-Trichlorobenzene
0.019 0.050 ppbv 25 70 - 1301,1,1-Trichloroethane
0.021 0.050 ppbv 25 70 - 1301,1,2-Trichloroethane
0.020 0.050 ppbv 25 70 - 130Trichloroethylene
0.029 0.20 ppbv 25 70 - 130Trichlorofluoromethane (Freon 11)
0.030 0.20 ppbv 25 70 - 1301,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)
0.032 0.050 ppbv 25 70 - 1301,2,4-Trimethylbenzene
0.031 0.050 ppbv 25 70 - 1301,3,5-Trimethylbenzene
0.024 1.0 ppbv 25 70 - 130Vinyl Acetate
0.032 0.050 ppbv 25 70 - 130Vinyl Chloride
0.058 0.10 ppbv 25 70 - 130m&p-Xylene
0.031 0.050 ppbv 25 70 - 130o-Xylene
70 - 130surr: 4-Bromofluorobenzene (1)
Bromochloromethane (1)
1,4-Difluorobenzene (1)
Chlorobenzene-d5 (1)
Page 2 of 2