HomeMy WebLinkAbout17047_REEP_Limited Assessment Report 20160302
Via E-mail
March 2, 2016
LRC Patriot, LLC
c/o Womble Carlyle Sandridge & Rice, LLP
One West Fourth St.
Winston-Salem, NC 27101
Attn: Ms. Lori Hinnant
Re: Limited Site Assessment Report
Premier 485
1700 Continental Blvd Charlotte, North Carolina
H&H Job No. LRC-002
Dear Lori:
Attached please find the Limited Site Assessment Report for the Premier 485 property located at
1700 Continental Boulevard in Charlotte, North Carolina.
Should you have any questions or need any additional information, please feel free to contact
me.
Sincerely,
Hart & Hickman, PC
Matt Bramblett, PE
Principal and Project Manager
Enclosure
#C-1269 Engineering
#-245 Geology
Limited Site Assessment Report
Premier 485
1700 Continental Boulevard
Charlotte, North Carolina
H&H Job No. LRC-002
March 2, 2016
i S:\AAA-Master Projects\LRC Patriot (LRC)\LRC-002 Continental Assessment\Phase II Sampling Activities\Limited Assessment Report.doc
Limited Site Assessment
Premier 485
1700 Continental Boulevard
Charlotte, North Carolina H&H Job No. LRC-002
Table of Contents
1.0 Introduction and Background ...............................................................................................1
2.0 Soil Sampling ...........................................................................................................................3
3.0 Results ......................................................................................................................................5
4.0 Summary and Recommendations ..........................................................................................6
List of Tables
Table 1 Summary of Waste and Surface Soil Analytical Results
List of Figures
Figure 1 Site Location Map
Figure 2 Sample Location Map
List of Appendices
Appendix A Laboratory Analytical Report
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Limited Site Assessment
Premier 485
1700 Continental Boulevard
Charlotte, North Carolina H&H Job No. LRC-002
1.0 Introduction and Background
Hart & Hickman, PC (H&H) has prepared this report detailing Site assessment activities
conducted at the Premier 485 property located at 1700 Continental Boulevard in Charlotte, North
Carolina (Site). A Site location map is included as Figure 1. The Site is comprised of one parcel
identified as 1700 Continental Boulevard totaling 25.931 acres and a portion of a parcel
identified as 1900 Continental Boulevard that totals approximately 1.11 acres. This area is part
of a larger site where a letter of eligibility has been obtained for the Brownfields Program (site
#17047-13-60).
The former uses of the Site include a Naval Ammunitions Depot (NAD) in the 1940s and 1950s
and tire manufacturing ancillary operations in the 1960s and 1970s. Based on 1950’s era aerial
photos and a 1950 map of the former NAD, numerous bunkers to hold live ammunition were
previously located on the Site. The site is currently heavily wooded and undeveloped.
During a wetlands delineation Site reconnaissance, burned/melted rubber mixed in with drums
containing white material and burned/melted rubber on the ground surface near the drums were
observed in the southeastern portion of the Site. Also, a layer of unnatural black stained soil was
observed up to a few inches deep that is widespread in the southeast portion of the Site. At least
one discernable piece of a tire was observed next to the rubber waste materials. These materials
were observed in the vicinity of a former incinerator structure. It was initially suspected that the
observed waste materials may be associated with the NAD. However, the incinerator structure
does not appear on aerials until the late 1960s, which is during the time that the tire plant
operated next to the Site. There appears to be a linear connection (potentially a ditch) on the
aerial photography from the 1960s between the tire plant and the incinerator area. Based on this
information and the inaccessibility to the area for recent dumping (the Site is fenced with no
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access roads), the waste materials are likely associated with incineration and/or disposal from the
tire plant and date to the 1960s or 1970s.
H&H also observed discarded and partially buried roofing materials in the northern portion of the
Site and a foundation and soil berm associated with one of the former NAD live ammunition
bunkers located in the eastern portion of the Site. H&H observed Transite siding in the vicinity
of the bunker that appeared to be former siding for the bunker building. Concrete and other
potential remnants of former bunkers were observed in the wooded area, but only one intact
foundation and soil berm were observed. The Site assessment activities were conducted by H&H
to characterize representative waste materials in the areas and stained soil discussed above and to
analyze potential Asbestos Containing Materials (ACMs) associated with the discarded roofing
materials and Transite. The methods and results of the Site assessment activities are provided in
the following sections. The ACM sample results are provided under separate cover.
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2.0 Soil Sampling
On November 16, 2015, H&H conducted limited assessment activities at the Site. Based on the
unknown nature of the waste materials at the Site, H&H sampled stained soil and waste materials
for a variety of analyses, which are discussed in detail below. The approximate locations of the
soil and waste materials samples are summarized below and identified on Figure 2.
Sample ID Target Area Analyses
S-1 55-Gallon Steel Drum with
Solids (Closed top)
VOCs (8260), SVOCs (8270), HSL Metals (6010/7471), pH,
Flash Point, Paint Filter, Reactivity, and TCLP RCRA Metals
S-2 Burned Rubber and Whitish
Material in Gully
VOCs (8260), SVOCs (8270), HSL Metals (6010/7471), pH,
Flash Point, Paint Filter, Reactivity, and TCLP RCRA Metals
S-3 Open and Deteriorated Drum with White Solid VOCs (8260), SVOCs (8270), HSL Metals (6010/7471), pH, Flash Point, Paint Filter, Reactivity, and TCLP RCRA Metals
S-4 Black Surface Soil West of
Deteriorated Drum
VOCs (8260), SVOCs (8270), HSL Metals (6010/7471),
Explosives (8330A), pH, Flash Point, Paint Filter, Reactivity,
and TCLP RCRA Metals
S-5 Black Surface Soil
Downgradient of Incinerator
VOCs (8260), SVOCs (8270), HSL Metals (6010/7471), pH,
Flash Point, Paint Filter, Reactivity, and TCLP RCRA Metals
S-6 Black Surface Soil in East-
West Ditch
VOCs (8260), SVOCs (8270), HSL Metals (6010/7471),
Explosives (8330A), pH, Flash Point, Paint Filter, Reactivity,
and TCLP RCRA Metals
S-7
Black Surface Soil
Downgradient of Incinerator
Door
VOCs (8260), SVOCs (8270), HSL Metals (6010/7471), pH,
Flash Point, Paint Filter, Reactivity, and TCLP RCRA Metals
S-8 and S-9
Shallow Soil Downgradient of
Former Live Ammunition
Storage Bunker
Explosives (8330A), VOCs (8260), SVOCs (8270), and HSL Metals (6010/7471)
VOCs = volatile organic compounds; SVOCs = semi-volatile organic compound; HSL = hazardous substance list; TCLP = Toxicity Characteristic Leaching Procedure.
As part of the limited assessment, H&H collected burned rubber and materials associated with
the 55-gallon steel drums (S-1 through S-3); the black stained surface soil located in the
southeast portion of the Site (S-4 through S-7); and two shallow soil samples on the
downgradient side of the former live ammunition storage bunker foundation (S-8 and S-9).
Because the ammunition bunkers were previously widespread on the Site, H&H analyzed two
samples from the southeast portion of the Site (S-4 and S-6) and the two samples from the
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downgradient side of the bunker foundation (S-8 and S-9) for explosive residues. The sample
locations were surveyed using a Trimble GPS unit during sample collection.
The samples were collected utilizing a decontaminated stainless steel hand auger. During the
collection of soils and materials, H&H field screened the samples for the presence of potential
impacts using visual and olfactory methods and with a photoionization detector (PID). The
results of the PID screening did not indicate significant impacts.
Prior to sampling the closed top drum, H&H staff donned proper personal protection equipment
(PPE) and utilized a lower explosive limit (LEL) detector to determine if high levels of vapors
were a concern prior to opening the drum. The LEL did not indicate hazardous levels of vapors
prior to opening the drum.
After field screening, soil and material samples were placed directly into laboratory supplied
sample containers and into a chilled cooler with ice for delivery to Prism Laboratories, Inc.
(Prism) under chain-of-custody protocol. Prism is a North Carolina certified laboratory.
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3.0 Results
The results of laboratory analyses indicated that there were detections in the waste/surface soils
above North Carolina Department of Environmental Quality (DEQ) Inactive Hazardous Sites
Branch (IHSB) Preliminary Soil Remediation Goals (PSRGs) in samples S-2, S-3, S-5, S-6, and
S-7. The primary constituent with elevated impacts is zinc and zinc was historically used in
whitewall materials.
The only compound detected above the Industrial PSRG was zinc in one sample. Zinc
concentrations ranged from 1,200 mg/kg (S-5 and S-6) to 320,000 mg/kg (S-2). The
concentration in sample S-2 exceeds the Industrial PSRG of 70,000 mg/kg. Ethylbenzene, total
xylenes, cadmium, lead, and selenium were also detected above Residential and/or Protection of
Groundwater PSRGs in the gully waste sample (S-2). Although there was only the one detection
above the Industrial PSRG, low level impacts were identified in multiple other locations. Based
on the analytical results, none of the sampled materials appear to qualify as RCRA
characteristically hazardous waste for disposal purposes. Although metals were detected in each
of the soil samples, certain metal detections appear to be naturally occurring based on
comparison to typical background sample results for this area (Table 1). No other VOCs or
SVOCs were detected above their respective IHSB standards.
Because the Site was formerly used for storage of live ammunition in buildings situated within
soil bunkers in the 1940’s and 1950’s, samples S-4, S-6, S-8, and S-9 were analyzed for
explosive residues. There were detections of explosive residues such as nitrobenzene,
nitroglycerin, and 2-amino-4,6-dinitrotoluene in soil samples S-6 and S-9. The highest detected
concentration was 4.32 mg/kg nitrobenzene (S-6) which is below the Residential PSRG of 5.1
mg/kg.
The laboratory analytical results of the assessment activities are summarized in Table 1. The
laboratory report along with chain-of-custody is provided in Appendix A.
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4.0 Summary and Recommendations
On November 16, 2015, Hart & Hickman, PC (H&H) conducted Limited Site Assessment
activities at the Premier 485 property located at 1700 Continental Boulevard in Charlotte, North
Carolina. The Site is currently undeveloped and heavily wooded. Former uses of the Site
include a Naval Ammunition Depot and tire manufacturing ancillary operations.
During a wetlands delineation Site reconnaissance, burned/melted rubber mixed in with drums
containing white material and burned/melted rubber on the ground surface near the drums were
observed in the southeastern portion of the Site. Also, a layer of unnatural black stained soil was
observed up to a few inches deep that is widespread in the southeast portion of the Site. These
materials were observed in the vicinity of a former incinerator structure. The incinerator
structure does not appear on aerials until the late 1960s, which is during the time that the tire
plant operated next to the Site. There appears to be a linear connection (potentially a ditch) on
the aerial photography from the 1960s between the tire plant and the incinerator area. Based on
this information and the inaccessibility to the area for recent dumping (the Site is fenced with no
access roads), the waste materials are likely associated with incineration and/or disposal from the
tire plant and date to the 1960s or 1970s.
H&H collected nine waste or shallow soil samples for laboratory analysis of VOCs, SVOCs,
HSL metals, TCLP RCRA Metals, general waste parameters and/or explosive compound
residues. The results of laboratory analyses indicated that there were detections in the
waste/surface soils above North Carolina Department of Environmental Quality (DEQ) Inactive
Hazardous Sites Branch (IHSB) Preliminary Soil Remediation Goals (PSRGs). The primary
constituent with elevated impacts is zinc, and zinc was historically used in tire whitewall
materials.
The only compound detected above the Industrial PSRG was zinc in one sample. Zinc
concentrations ranged from 1,200 mg/kg (S-5 and S-6) to 320,000 mg/kg (S-2). The
concentration in sample S-2 exceeds the Industrial PSRG of 70,000 mg/kg. Although there was
only the one detection above the Industrial PSRG, low level impacts were identified in multiple
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other locations. Based on the analytical results, none of the sampled materials appear to qualify
as RCRA characteristically hazardous waste for disposal purposes.
This report should be provided to the Brownfields Program for incorporation into the
Brownfields Agreement. An Environmental Management Plan (EMP) will be required by the
Brownfields Program for redevelopment of this Site. The EMP will address management of
impacted soil, potential contaminated water, and potential unknown environmental conditions,
etc. during site redevelopment.
In addition, H&H recommends the removal of the discarded waste materials and drums to
facilitate redevelopment in a timely fashion.
Table 1
Summary of Waste and Surface Soil Analytical Results
Premier 4851700 Continental BoulevardCharlotte, Mecklenburg County, North Carolina
H&H Job No. LRC-002
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Table 2 (Page 1 of 1)
Hart & Hickman, PC
Sample ID S-1 S-2 S-3 S-4 S-5 S-6 S-7 S-8 S-9
Location
55-Gallon Steel
Drum with Solids (Closed Top)
Burned Rubber &
Whitish Material in
Gully
Open & Deteriorated
Drum w/
White Solid
Black Surface Soil West of
Deteriorated
Drum
Black Surface Soil
Downgradient
of Incinerator
Black Surface Soil
in East-West
Ditch
Downgradient
of Incinerator Door
Former Live Ammunition
Storage
Bunker
Former Live Ammunition
Storage
Bunker
Sample Depth (ft bgs)Contents 0-0.5 Contents 0-0.5 0-0.5 0-0.5 0-0.5 0-2 0-2
PSRG Industrial1 Hazardous Waste
VOCs (8260) (mg/kg)1,2,4-Trichlorobenzene <0.0071 0.0081 <0.0059 <0.0058 <0.0075 <0.0076 <0.0074 <0.0060 <0.0046 52
4-Isopropyltoluene <0.0071 0.13 <0.0059 <0.0058 <0.0075 <0.0076 <0.0074 <0.0060 <0.0046 NE
Acetone 0.20 0.066 <0.059 0.17 0.67 1.2 0.26 0.075 <0.046 100,000
Chloromethane <0.0071 <0.012 <0.0059 <0.0058 <0.0075 0.0084 0.011 <0.0060 <0.0046 92Ethylbenzene<0.0071 11 <0.0059 <0.0058 <0.0075 <0.0076 <0.0074 <0.0060 <0.0046 25
m&p-Xylenes <0.014 64 <0.012 <0.012 <0.015 <0.015 <0.015 <0.012 <0.0091 388
o-Xylene <0.0071 27 <0.0059 <0.0058 <0.0075 <0.0076 <0.0074 <0.006 <0.0046 434
Toluene <0.0071 0.064 <0.0059 <0.0058 <0.0075 <0.0076 <0.0074 <0.0060 <0.0046 820Total xylenes <0.021 91 <0.018 <0.017 <0.023 <0.023 <0.022 <0.018 <0.014 258
SVOCs (8270)(mg/kg)
Benzoic Acid 0.70 <2.2 <0.39 <0.42 <0.49 0.68 <0.47 <0.45 <0.36 100,000
Bis(2-Ethylhexyl)phthalate <0.50 <2.2 <0.39 <0.42 <0.49 0.65 <0.47 <0.45 <0.36 160
HSL Metals (6010/7471) (mg/kg)Range
(mg/kg)
Mean
(mg/kg)
Antimony <0.39 0.36 <0.29 <0.032 <0.38 14 1.9 <0.34 <0.27 94 <1.0 - 8.8*0.76
Arsenic <2.3 <2.0 2.0 <1.9 4.3 6.9 4.1 <2.1 4.1 3 1.0 - 18 4.80
Beryllium 1.4 <0.33 <0.29 0.70 1.4 0.41 0.95 2.0 1.3 460 ND-2.0 0.11
Cadmium <0.39 55 0.90 <0.32 0.79 1.6 2.5 <0.34 <0.27 200 1.0 - 10**4.30Chromium2911149.4 25 40 51 7.3 28 100,000 7.0-300 65
Copper 38 71 71 15 120 160 550 32 20 9,400 3.0-100 34
Lead 260 350 30 9.7 19 68 110 7.0 8.3 800 ND - 50 16
Manganese 410 64 120 280 950 280 780 400 380 5,200 8.0-3,394 594Mercury0.043 <0.027 0.050 <0.026 0.12 0.37 0.10 0.032 <0.022 3.1 0.03-0.52 0.121
Nickel 21 10 21 8.3 81 27 42 9.7 20 4,400 ND-150 23
Selenium <1.5 5.5 <1.2 <1.3 <1.5 <1.5 <1.4 <1.4 <1.1 1,200 <0.1 - 0.8 0.42
Silver <0.39 <0.33 <0.29 <0.32 <0.38 0.63 0.46 <0.34 <0.27 1,200 ND - 5.0 NSZinc230320,000 1,700 350 1,200 1,200 9,200 100 73 70,000 25-124 56
TCLP Metals by (EPA 1311) (mg/L)
Cadmium <0.025 0.035 <0.025 <0.025 <0.025 <0.025 <0.025 NA NA NE 1
General Waste
Ignitability (1030)Pass Pass Pass Pass Pass Pass Pass NA NA NE Pass
Paint Filter (9095B)Pass Pass Pass Pass Pass Pass Pass NA NA NE NE
pH (9045D)4.6 6.1 4.3 6.8 6.0 6.3 6.9 NA NA NE <2 or <12.5
Reactivity Cyanide (7.3.3.2)<250 <243 <238 <245 <250 <248 <250 NA NA NE NE
Reactivity Sulfide (7.3.4.2)<250 <243 <238 <245 <250 <248 <250 NA NA NE NE
Explosive Compounds (EPA 8330A)
(mg/kg)
Nitrobenzene NA NA NA <0.066 NA 4.32 NA <0.064 <0.073 22 NE
2-Amino-4,6-dinitrotoluene NA NA NA <0.132 NA 0.597 NA <0.129 <0.146 460 NE
Nitroglycerin NA NA NA <0.132 NA 0.761 NA <0.129 0.559 16 NE
Notes:
1) NC DEQ Inactive Hazardous Sites Branch (IHSB) Protection of Groundwater and Residential and Industrial Health Based Preliminary Soil Remediation Goals (PSRGs) - September 2015Bold concentration indicates exceedance of NC DEQ IHSB Preliminary Soil Remediation Goal (as well as background levels in the case of metals)Hazardous Waste Standard based on RCRA Characteristically Hazardous Waste ThresholdsRange and Mean background values for North Carolina or Southeast soils taken from Elements in North American Soils by Dragun and Chekiri, 2005
* = Range and mean values of background metals for Southeastern USA soils.
EPA Method follows parameter in parenthesis; NA= Not analyzed; NE = Not established;
VOCs=volatile organic compounds; SVOCs=semi-volatile organic compounds; HSL = Hazardous Substance List
Only compounds detected in at least one sample shown
NE
NE
NE
63
0.9
5.8
360,000
700
39
NENE
NE
300 130
32
24
NE
NE
130 6.0
50,000 130
6.2
PSRG Residential
Soil1
Protection of
Groundwater
PSRG1
5.8 8.1
2.2
NE 0.68
400 27036065
0.68
11/16/2015 11/16/2015 11/17/2015 11/17/2015
22
12
Screening Criteria
NE
Sample Date 11/16/2015 11/16/2015 11/16/2015 11/16/2015 11/16/2015
NE NE
78 2.1783.44,600 1,200
NE
NE
NE
5.1
30
1.3
12,000
NE
NE
820 5.5
0.015
110 NE
130
620
Background*
NE
NE NE
NE
14
1.9 1.0
24,000
7.2
SITE
0 2000 4000
APPROXIMATE
SCALE IN FEET
N
U.S.G.S. QUADRANGLE MAP
QUADRANGLE
7.5 MINUTE SERIES (TOPOGRAPHIC)
Charlotte West, North Carolina 1996
TITLE
PROJECT
SITE LOCATION MAP
PREMIER 485
1700 CONTINENTAL BLVD.
CHARLOTTE, NC
DATE:
JOB NO:
REVISION NO:
FIGURE:
12-31-15 0
1LRC-002
Appendix A
Laboratory Analytical Report
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