21025_five Points_Imp-Exp Sampling Plan #1-Revision #2; 4.21.23 signed

ATTACHMENT 1
DEQ Brownfields Redevelopment Section
Assessment Work Plan Approval Signature Page
To be completed by Development Team and returned to DEQ Brownfields for review & signature.

Brownfields Project Name: Five Points Gateway
Brownfields Project Number: 21015-17-090
Work Plan Title: Import-Export Soil Sampling Plan #1 – Revision #2
Date: April 21 2023
Revision Number: 2

Be advised that this approval from DEQ Brownfields does not waive any applicable requirement to
obtain any necessary permits, licenses, or certifications for the above listed activities nor does it waive
any requirement to comply with applicable law for such activities.

Prospective Developer (PD): City of Monroe
Contact Person: Chad Splawn
Phone Numbers: Office: 7042824587 Mobile: Click or tap here to enter text.
Email: [e-mail]

Property Owner (if different from above): City of Monroe
Contact Person: Chad Splawn
Phone Numbers: Office: 7042824587 Mobile: Click or tap here to enter text.
Email: [e-mail]

Environmental Consultant: Resolve Environmental Services PLLC
Contact Person: Terry Kennedy
Phone Numbers: Office: 704-289-5881 Mobile: [phone]
Email: [e-mail]
Signature:

Brownfields Project Manager: Carolyn Minnich
Phone Numbers: Office: Mobile: [phone]
Email: [e-mail]
Signature:

Consultant: Resolve Environmental Services PLLC Date 4/21/2023
Printed Name/Title/Company: Terry D. Kennedy PG/PE SEAL HERE
Brownfields Project Manager: Carolyn Minnich Date Click or tap to enter a date.
04/21/2023
1

Import-Export Soil Sampling Plan #1 – Revision #2
Five Points Gateway
320 and 322 East Franklin Street
Union County Parcel ID Numbers 09-231-233 and 09-231-234
Monroe, North Carolina
Brownfields Project Number: 21015-17-090

Prepared for:

Project Manager
Brownfields Redevelopment Section
North Carolina Department of Environmental Quality
610 E. Center Avenue, Suite 301
Mooresville, North Carolina 28115

Prepared by:
Resolve Environmental Services, PLLC
500 Devonport Drive
Matthews, North Carolina 28104

April 21, 2023
__________________________

Terry D. Kennedy, P.G.
License #1435

Resolve Environmental Services, PLLC, is licensed to practice geology in North Carolina. The
certification number of the corporation is C-416.
2

TABLE OF CONTENTS

A. SITE INFORMATION ..................................................................................................................... 3
B. SITE HISTORY ............................................................................................................................... 4
C. BORROW SOURCE ...................................................................................................................... 6
D. SAMPLING PLAN .......................................................................................................................... 6
E. SCOPE OF WORK ........................................................................................................................ 6
F. SAMPLING METHODOLGY ........................................................................................................ 7
G. LABORATORY ANALYSES ......................................................................................................... 8
H. QUALITY ASSURANCE/QUALITY CONTROL ......................................................................... 8
I. INVESTIGATIVE DERIVED WASTE MANAGEMENT ............................................................. 9
J. REPORTING ................................................................................................................................... 9

FIGURES
Figure 1: Site Location Map
Figure 2: Borrow Source Soil Sampling Map
Figure 3: Soil Stockpile Location Map

TABLE

Table 1: Sample Locations and Analyses

APPENDIX

Appendix A: Historical Information

3

A. SITE INFORMATION
 Site Name: Five Points Gateway
 Location: 320-322 East Franklin Street
Monroe, Union County, NC (Figure 1)

 Land Use: Former Commercial/Parking Lot
 Property Owner: Parcel ID 09-231-233 and 09-231-234
City of Monroe
Post Office Box 69
Monroe, North Carolina 28111-0069

 Prospective Developer: City of Monroe
Post Office Box 69
Monroe, North Carolina 28111-0069

 Consultant: Resolve Environmental Services, PLLC (Resolve)
500 Devonport Drive
Matthews, North Carolina 28104
[phone]

 Latitude: 34.982391° North
 Longitude: 80.546556° West

 Site Summary: The site previously contained two commercial structures that were
removed in 2020. The proposed usage for the site is a parking lot for the adjacent Science
Center. Resolve submitted an Environmental Management Plan (EMP) for the
redevelopment activities on April 30, 2021. The EMP was approved by the NCDEQ on
June 17, 2021. Development includes paving the existing Brownfields property.

4

B. SITE HISTORY
The site is located at 320 and 322 East Franklin Street in Monroe, Union County, North Carolina.
Previous report submissions pertaining to assessment(s) at the subject site can be viewed at the
Brownfields Redevelopment Section of the North Carolina Department of Environmental Quality
(NCDEQ).
The western parcel located at 320 E. Franklin Street was developed by at least 1908 with
residences and remained residential into the 1930s. By 1947, according to aerial and Sanborn
maps for the parcel, residential structures were removed and replaced with a large commercial
structure used for auto sales and a smaller structure used for auto repair which included gasoline
underground storage tanks (USTs). The large commercial structure was expanded by 1959 and
the smaller structure and USTs had been removed. The western parcel has remained a
commercial property since 1959. According to a review of city directories, this portion of the
Brownfields Property was occupied by Don Moore Textiles in 1992, Majestic Textile Brokers in
1995, and Thompson Textiles and Downton Discount in 2008. This portion of the Brownfields
Property has been vacant since 2016 and the former commercial buildings were demolished by
the Prospective Developer in May 2019 in accordance with a DEQ approved Environmental
Management Plan (EMP) dated October 25, 2018.
The eastern parcel located at 322 E. Franklin Street was developed by at least 1908 with
residences and remained residential until at least 1959 according to a review of Sanborn maps
and aerial photographs. By 1964, all of the residential buildings were demolished and the former
commercial building was located along the eastern edge of the Brownfields Property boundary.
Several commercial businesses have operated out of five units located within the former
commercial building referenced as 322, 324, 326, 328, and 330 E. Franklin Street. According to
a review of city directories, the following business have utilized this portion of the Brownfields
Property: 322 E. Franklin St. was occupied by Ellis Taxi in 1992 and AAA Taxi and Anthony Belk
Painting in 1999 until at least 2003. 324 E. Franklin St. was occupied by Paramount in 1995 and
Ella’s Place and Herring and Yow Heating and Cooling in 1999. 326 E. Franklin St. was occupied
by Friendly Barber Shop in 1992 until at least 2013 and Roger’s Barber Shop in 1992. 328 E.
Franklin St. was occupied by Cliney’s Hair Styling in 1992 until at least 2003. 330 E. Franklin St.
was occupied by Gethsemane Church of God in 1995 until at least 1999, and Jerry’s Hair Styling
from 2003 until at least 2013. This portion of the Brownfields Property has also been vacant since
2016 and the former commercial buildings were demolished by the Prospective Developer in May
2019, also in accordance with the DEQ approved EMP.
Historical Report Summaries
Phase I Environmental Assessment Reports for both parcels of the Brownfields Property were
completed by Resolve Environmental Services, PLLC (Resolve) in November 2016. Resolve
identified the presence of former gasoline USTs from approximately 1947 to 1951 at the western
parcel (320 E. Franklin St.) as a Recognized Environmental Condition (REC). Additionally, the
former use of the western parcel as an automotive repair facility was considered a REC. No
RECs were identified for the eastern parcel but Potential Environmental Concerns (PECs) were
5

identified for the former gasoline service stations located at the western adjacent property (302
E. Franklin St.) and northeastern adjacent property (325 E. Franklin St.).
A Phase II Environmental Site Assessment report was completed by Resolve on November 18,
2016. Five monitoring wells were installed across the Brownfields Property. Three of the wells
were installed on the western parcel (320 E. Franklin Street) at the following locations: in the
vicinity of the former gasoline storage tanks (TMW-1) in the northwest portion of the parcel; in the
vicinity of the former auto repair shop (TMW-2) in the southwest proportion of the parcel; and on
the east side of the former building (TMW-3) in the northeast portion of the parcel. Several
petroleum related VOCs and metals were detected above the North Carolina Administrative Code
Title 15A Subchapter 2L groundwater standards (2L; July 2013). Several groundwater
constituents also exceeded the DEQ Non-Residential Vapor Intrusion Screening Level (VISL;
February 2018). Soil samples were collected from 10 feet below land surface (ft BLS) at
monitoring wells TMW-1 and TMW-2. Concentrations of Arsenic and Chromium (Total) exceeded
the DEQ Commercial/Industrial Preliminary Soil Remediation Goals (PSRGs; May 2019).
Two monitoring wells were installed on the eastern parcel (322 E. Franklin Street) near the north-
central (TMW-4) and south-central (TMW-5) borders of the Brownfields Property. Monitoring well
TMW-5 was sampled for RCRA metals. Concentrations of Arsenic, Lead, and Chromium (Total)
were above the 2L standards. Groundwater was not encountered at the total depth (28 ft BLS)
of TMW-4. Soil samples were collected from TMW-4 and TMW-5 at 8 ft BLS and 5 ft BLS
respectively. Concentrations of Arsenic and Total Chromium exceeded the Commercial/Industrial
PSRGs in both samples.
Immediately prior to the demolition of the two commercial buildings in May 2019, three surficial
samples (0.5 ft BLS) were collected from beneath the slabs of each building (320 and 322 E.
Franklin Street). No VOCs or semi-volatile organic compounds (SVOCs) were detected above
Commercial/Industrial PSRGs. Arsenic was detected above Commercial/Industrial PSRGs in
each of the six samples collected; however, these detections are believed to represent naturally
occurring/background levels.
As reported in the November 2019 Brownfields Assessment Report prepared by Resolve,
monitoring wells TMW-4 and TMW-5 were re-installed as MW-1 and MW-3 along with the
installation of a new monitoring well (MW-2) in the western portion of the 322 E. Franklin Street
parcel in an attempt to delineate VOC impacts in groundwater. Several VOCs were detected but
only concentrations of Benzene and 1,2-Dichloroethane (DCA) exceeded the 2L standard in
monitoring wells MW-1 and MW-2. No constituents were detected at concentrations exceeding
Non-Residential VISLs. Pertinent soil and ground water quality data is attached in the Appendix.

6

In accordance with the NCDEQ Brownfields Redevelopment Section approved Environmental
Management Plan (EMP) dated June 17, 2021, Resolve Environmental Services, PLLC (Resolve)
presents this sampling plan for exporting soil from subject site in addition to a sampling plan for
import soil to be used on the subject site. The developer proposes to use one (1) local borrow
source, Martin Marietta - Bakers Quarry in Monroe, NC (Permit No. 90-02).

C. BORROW SOURCE

The developer plans to import approximately 500 cubic yards of overburden material from the
Bakers Quarry to the subject site. The overburden is defined as the overlying soils above the rock
at the quarry. An aerial photograph of the area containing the overburden excavation is included
as Figure 2. The soil borrow source will require proper soil sampling and reporting prior to
importing fill to the subject site in accordance with the EMP.

D. SAMPLING PLAN

The developer currently plans to export up to 1,500 cubic yards of soil from the subject site. Based
on the amount of proposed soil to be exported off-site, one (1) composite soil sample per 1,000
cubic yards (or portion thereof), will be collected. Therefore, up to two (2) composite samples will
be collected from the soil stockpile(s). The final destination of the exported soils will be
determined once laboratory analytical data is obtained, reviewed and approved by the NCDEQ
program manager, per the EMP.

The developer currently plans to import approximately 500 cubic yards of overburden to the
subject site. Based on the amount of proposed fill to be imported to the site, one (1) primary soil
samples will be collected from borings installed across the overburden excavation area. Based
on photoionization detector field screening results, the soil sample exhibiting the highest
concentration will be submitted for laboratory analyses. In addition, a field composite sample will
be prepared for laboratory analyses.
E. SCOPE OF WORK
The following work scope is based upon Resolve’s EMP dated June 7, 2021. A Site-Specific
Health and Safety Plan will be prepared by Resolve in accordance with 29 CFR 1910.120
(HAZWOPER). All on-site Resolve personnel will be current with HAZWOPER training. The
Health and Safety Plan will be present on site during all field activities. The scopes of work for the
export and import soil sampling is detailed below.

7

EXPORT SOIL SAMPLING
1. Resolve will obtain access to the site. The proposed export soils are currently stockpiled
at the site in accordance with the EMP. The two (2) soil stockpile locations are shown on
Figure 3.
2. Up to ten (10) primary grab samples (5 primary samples for each composite sample) will
be collected from the stockpile(s) to create composite samples in the field. The primary
grab samples will be screened with a photoionization detector (PID), whichever grab
sample exhibits the highest PID reading, the sample will be submitted for laboratory
analysis of volatile organic compounds by SW-846 Method 8260B.
3. A total of up to 2 composite soil samples will be submitted to a North Carolina certified
laboratory for analysis of semi-volatile organic compounds (SVOCs) by SW-846 Method
8270D and 8 RCRA metals by Method 6020.
4. Upon receipt of the final laboratory analytical report, Resolve will prepare a sampling
report suitable for submittal to the NCDEQ. Soils will not be transported off site, prior to
NCDEQ approval.

IMPORT SOIL SAMPLING
1. Resolve will obtain access to the permitted borrow source. An employee of the borrow
source will guide Resolve to the overburden area. The approximate location of the
proposed borrow source and soil sample locations are shown on Figure 2.
2. Five (5) soil borings will be installed across the overburden excavation area. The borings
will be advanced to 3 feet below grade surface (BGS) using a hand auger. The soil cuttings
will be screened with a PID. Soil samples will be collected at the terminus of each boring.
The one (1) soil sample which exhibits the highest OVA reading will be collected and
analyzed for VOCs by SW-46 Method 8260B. One (1) composite soil sample (composited
from five primary grab samples presented in Figure 2) will be submitted for analyses of
VOCs by SW-846 Method 8260B, SVOCs by SW-846 Method 8270D and 8 RCRA metals
by EPA Method 6020.
3. Upon receipt of the final laboratory analytical report, Resolve will prepare a sampling
report suitable for submittal to the NCDEQ. Import soils will not be transported to the
subject site prior to NCDEQ approval.

F. SAMPLING METHODOLGY
Samples will be collected and analyzed in accordance with the NCDEQ, Division of Waste
Management, Inactive Hazardous Sites Program’s “Guidelines for Assessment and Cleanup”
(October, 2015, revised January 2020) and the US EPA Region 4 Science and Ecosystem
Support Division Guidance.

8

Soil Sampling: Grab primary soil samples will be collected from stockpiles to form a composite
sample for every 1,000 cubic yards, or portion thereof. Grab primary overburden soil samples
will be collected from the borrow source to form one composition sample for the approximated
500 cubic yards to be imported. A table summarizing the soil sample locations and analyses is
included as Table 1.

G. LABORATORY ANALYSES
All samples will be collected and immediately placed into laboratory-supplied glassware, placed
on ice and transported to a North Carolina certified laboratory for analyses within 24 hours of
sample collection and within the applicable hold times for each proposed method. The laboratory
will conduct the analyses using Level II QA/QC with method detection limits at or below the
applicable NCDEQ reporting requirements.
1. Soil will be analyzed for VOCs by SW-846 Method 8260B, SVOCs by SW-846 Method
8270D, and 8 RCRA Metals by EPA Method 6020. If preliminary data results indicate that
a sample could potentially contain impacts that are hazardous (i.e. fail the 20:1 rule), a
TCLP sample will be run for the COC.
2. Duplicate Samples
One (1) duplicate sample from a soil sample (during export and borrow source sampling)
will be analyzed for VOCs by SW-846 Method 8260B, for SVOCs by SW-846 Method
8270D and for 8 RCRA Metals by EPA Method 6020. If preliminary data results indicate
that a sample could potentially contain impacts that are hazardous (i.e. fail the 20:1 rule),
a TCLP sample will be run for the COC.
H. QUALITY ASSURANCE/QUALITY CONTROL

1. Soil Sampling
Soil samples will be collected using a decontaminated hand auger. All sample collection
equipment will be decontaminated prior to use and between sampling locations. Field
personnel will collect each soil sample using a new pair of nitrile gloves.

Up to two (2) composite samples (for export sampling) from up to 10 primary sampling
areas will be analyzed for VOCs by SW-846 Method 8260B, SVOCs by SW-846 Method
8270D and 8 RCRA metals by EPA Method 6020. One (1) composite sample (from borrow
source) from five (5) primary samples will be analyzed for VOCs by SW-846 Method
8260B, SVOCs by SW-846 Method 8270D and 8 RCRA metals by EPA Method 6020.
The samples will be placed directly into laboratory-supplied sample containers,
immediately placed on ice in a sample cooler and transported to the laboratory in the
manner described above within appropriate temperature range and analyses hold times.
Proper chain of custody procedures will be maintained at all times.

3. Duplicates and Trip Blanks
9

To evaluate laboratory quality control and repeatability, one duplicate soil sample will be
collected and analyzed for VOCs, SVOCs and 8 RCRA metals. One (1) trip blank sample
will accompany the samples during the sampling events. The trip blanks will be analyzed
or VOCs by SW-846 Method 8260D.

I. INVESTIGATIVE DERIVED WASTE MANAGEMENT
No investigative derived waste will be generated.

J. REPORTING

All of the results and field data from the assessment activities will be summarized and presented
in a Soil Sampling Report that will include all applicable field data, laboratory analytical results
(including J-flagged or estimated concentrations), tables, figures, field notes, conclusions and
recommendations for the site, and will be certified by signature and seal of Professional Geologist
duly licensed in North Carolina.

Copyright:© 2013 National Geographic Society, i-cubed
FIGURE 1SITE LOCATION MAP320 E. FRANKLIN STREETMONROE, UNION COUNTY,NORTH CAROLINA
PREPARED BY:RESOLVE ENVIRONMETAL SERVICES, PPLC.OCTOBER 25, 2016
0 2,000 4,0001,000 Feet
SCALE: 1 INCH = 2,000 FEET
MAP CENTER LOCATIONLATITUDE: 34.982443° NLONGITUDE: 80.547068° W
`
SITE LOCATION
³
Five Points Gateway
21015-17-090
Soil Stockpile Location
100 ft
N➤➤N
Sample ID Sample Type Objective Depth
(feet)
Screen
w/ PID VOCs 8260 SVOCs
8270
RCRA
Metals 6020
TCLP
(potential)
SB-1-3'3 X
SB-2-3'3 X
SB-3-3'3 X
SB-4-3'3 X
SB-5-3'3 X
COMP-1 Composite Borrow Source Sampling ----X X X X
SS-1 --X
SS-2 --X
SS-3 --X
SS-4 --X
SS-5 --X
SS-COMP-1 Composite ----X X X X
SS-6 --X
SS-7 --X
SS-8 --X
SS-9 --X
SS-10 --X
SS-COMP-2 Composite ----X X X X
Notes: 1.Stockpile ID locations shown on Figure 3.
2. If preliminary data results indicate that a sample could potentially contain impacts that are hazardous, a TCLP sample will be run for the COC.
Primary/Grab from
Stockpile #2
Soil Disposal Characterization
Submit
primary
sample with
highest PID
reading for
laboratory
analysis
Submit
primary
sample with
highest PID
reading for
laboratory
analysis
TABLE 1
FIVE POINTS GATEWAY
SAMPLE LOCATIONS AND ANALYSES
BROWNFIELDS PROJECT 21015-17-090
IMPORT SAMPLING
Borrow Source SamplingPrimary/Grab
EXPORT SAMPLING
Submit
primary
sample with
highest PID
reading for
laboratory
analysis
Primary/Grab from
Stockpile #1
Exhibit 2
The most recent environmental sampling at the Brownfields Property reported in the
Environmental Reports occurred on August 15, 2019. The following tables set forth, for
contaminants present at the Brownfields Property above unrestricted use standards or screening
levels, the concentration found at each sample location, and the applicable standard or screening
level. Screening levels and groundwater standards are shown for reference only and are not set
forth as cleanup levels for purposes of this Agreement.
GROUNDWATER
Groundwater contaminants in micrograms per liter (the equivalent of parts per billion),
the standards for which are contained in Title 15A ofthe North Carolina Administrative Code,
Subchapter 2L (2L), Rule .0202, (April 1, 2013 version):
Groundwater
Contaminant
Sample
Location
Date of
Sampling
Concentration
Exceeding
Standard ( g/L)
Standard
µg/L)
Arsenic
TMW-1 10/27/2016 419
10TMW-3 10/27/2016 216
TMW-5 10/27/2016 23
Benzene
MW-1 8/15/2019 2.7
1
MW-2 8/15/2019 5.0
TMW-1 10/27/2016 1,570
TMW-3 10/27/2016 1,740
n-Buylbenzene
TMW-1 10/27/2016 213
70
TMW-3 10/27/2016 80.5
Chromium
TMW-1 10/27/2016 1,030
10
TMW-2 10/27/2016 1,280
TMW-3 10/27/2016 569
TMW-5 10/27/2016 37.3
1,2-Dichloroethane MW-1 8/15/2019 7.0 0.4
MW-2 8/15/2019 13.1
Ethylbenzene TMW-3 10/27/2016 986 600
Isopropylbenzene
TMW-1 10/27/2016 362
70
TMW-3 10/27/2016 277
p-Isopropyltoluene
TMW-1 10/27/2016 83.1 25
TMW-3 10/27/2016 91.7
Lead
TMW-1 10/27/2016 3,090
10
TMW-2 10/27/2016 1,650
TMW-3 10/27/2016 1,710
TMW-5 10/27/2016 29.7
21050-17-090/Five Points Gateway 8/13/2020
Groundwater
Contaminant
Sample
Location
Date of
Sampling
Concentration
Exceeding
Standard ( g/L)
Standard
µg/L)
Mercury
TMW-1 10/27/2016 5.0
1TMW-2 10/27/2016 2.7
TMW-3 10/27/2016 1.5
2-Methylnaphthalene
TMW-1 10/27/2016 237
30
TMW-3 10/27/2016 436
Naphthalene
TMW-1 10/27/2016 1,150
6
TMW-3 10/27/2016 1,520
n-Propylbenzene
TMW-1 10/27/2016 380
70
TMW-3 10/27/2016 392
Toluene TMW-3 10/27/2016 2,180 600
1,2,4-
Trimethylbenzene
TMW-1 10/27/2016 3,230
400TMW-3 10/27/2016 1,510
1,3,5-
Trimethylbenzene
TMW-1 10/27/2016 977
400
TMW-3 10/27/2016 984
Vinyl Chloride TMW-1 10/27/2016 172 0.03
Xylenes
TMW-1 10/27/2016 2,530 500
TMW-3 10/27/2016 5,350
GROUNDWATER VAPOR INTRUSION RISK
Groundwater contaminants with potential for vapor intrusion (VI) in micrograms per liter
the equivalent of parts per billion), the vapor intrusion screening levels for which are derived
from the Residential Vapor Intrusion Screening Levels of the Division of Waste Management
February 2018 version):
Groundwater Concentration
Non -
Contaminant with
Sample Date of Exceeding
Residential VI
Potential for Vapor Location Sampling Screening Screening
Intrusion
Level (µg/L)
Level
g/L)
Benzene
TMW-1 10/27/2016 1, 5 70
69
TMW-3 10/27/2016 1,740
Ethylbenzene TMW-3 10/27/2016 986 150
Mercury
TMW-2 10/27/2016 2.7
0.75
TMW-3 10/27/2016 1.5
Naphthalene TMW-1 10/27/2016 1,150
150
TMW-3 10/27/2016 1,520
1,2,4-
Trimethylbenzene
TMW-1 10/27/2016 3,230 210
21050-17-090/Five Points Gateway 8/13/2020
2
Groundwater Concentration Residential VIContaminantwithSampleDateofExceedingScreeningPotentialforVaporLocationSamplingScreeningLevel
Intrusion
Level (µg/L) µg/L)
1,2,4-
Trimethylbenzene TMW-3 10/27/2016 1,510 210
1,3,5-
Trimethylbenzene
TMW-1 10/27/2016 977 150
Vinyl Chloride TMW-1 10/27/2016 172 25
Xylenes
TMW-1 10/27/2016 2,530
320TMW-3 10/27/2016 5,350
1 Screening levels displayed for non -carcinogens are for a hazard quotient equal to 0.2. Screening levels
displayed for carcinogens are for a 1.0E-5 lifetime incremental cancer risk.
SOIL
Soil contaminants in milligrams per kilogram (the equivalent of parts per million), the
screening levels for which are derived from the Preliminary Industrial Health- Based Soil
Remediation Goals of the Inactive Hazardous Sites Branch of DEQ's Superfund Section (May
2019 version):
Soil
Contaminant
Sample
Location
Depth
ft)
Date of
Sampling
Concentration
Exceeding
Screening Level
mg/kg)
Industrial/
Commercial
Screening Level'
mg/kg)
Arsenic
TMW-1 10 10/27/2016 6.5
3
TMW-2 10 1 10/27/2016 10.4
TMW-4 8 10/27/2016 5.7
TMW-5 5 10/27/2016 12.2
320-1 0.5 4/22/2019 18
320-2 0.5 4/22/2019 11
320-3 0.5 4/22/2019 13
322-1 0.5 4/22/2019 8.2
322-2 0.5 4/22/2019 9.1
322-3 0.5 4/22/2019 8.7
STOCKPILE 0.5 8/2/2019 9.2
Screening levels displayed for non -carcinogens are for a hazard quotient equal to 0.2. Screening levels
displayed for carcinogens are for a 1.0E-6 lifetime incremental cancer risk.
2Concentrations believed to represent naturally occurring/background levels in soil.
21050-17-090/Five Points Gateway 8/13/2020
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