25001_dynatech II_Brownfields Kickoff Meeting Presentation (2.25.21)

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PARTNER
Engineering and Science, Inc:
"Now I 1 W- V T it
Dynatech I I —
Kickoff Meeting
North Carolina Department of Environmental
Quality (DEQ) Brownfields Program
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PARTNER
Engineering and Science, Inc.
Brownfields Project Number 25001-21-060
Prospective Developer — Abacus Acquisitions, LLC
Attorney - Alexander Ricks PLLC
Consultant — Partner Engineering North Carolina, PLLC

Site Address / Location / Prospective Developer
• 22071 2213, 2301, 2325
Toomey Ave; 728 & 704 W.
Tremont Ave, Charlotte, North
Carolina 28203
• Amend the Brownfields
Application to add 2320
Toomey Avenue and change
the Prospective Developer
entity.
• Possible removal of 2325
Toomey Avenue parcel (corner
lot) from Brownfields
Application.
• An affiliate of Prospective
Developer acquired 2213
Toomey Avenue (Dynatech
Brownfields Property) in 2020
2/26/2021
Q Q PARTNER
Site Plan 1 Location Prospective Developer41
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Addition of 2320 Toomey Avenue' `
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A. IMAGE SIiV E: p1��REhLAP
)ective Brownfields Properties
2213, & 2301 Toomey Avenue;
704 W. Tre-ont Avenue
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W TREMONT AVENUE
704
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2213 Toomey Avenue — Existing Brownfields Data
• Historical Use of Note: Dynatech Industries, Inc. (1985-
1990)
• Existing Brownfields Agreement in Place
Soil
a. Soil samples contained detectable concentrations of inorganic and organic compounds.
Contaminants detected (in milligrams per kilogram (mg/kg), the equivalent of parts per million (ppm)) include:
Contaminant Maximum Concentration
ound
Arsenic
3.4
Barium
270
Cadmium
1.8
Chromium
220*
Lead
22
Mercury
0.79
Chlorobenzene
0.62
1,4-dichlorobenzene
0.033
'Total Chromium (Leachable Chromium <0.5
mglL)
Groundwater
b. Groundwater samples contained detectable concentrations of inorganic and organic
compounds were present in the groundwater samples collected.
Contaminants detected (in micrograms per liter
(pg/L), the equivalent of part per billion (ppb)) include;
Contaminant MaXrnyungConcentration
Found
Arsenic
0.012
Barium
2.3
Cadmium
0.008
Chromium
3A
Hexavalent Chromium
2.5
Lead
0.069
Acetone
0.17
2-13utanone (MEK)
9.6
10 10 10 0 PARTNER
2/26/2021

Methane Data
2213 Toomey Avenue
Methane in each sample was below the
method detection limit (<0.11 or <0.12 %
by volume): < < 10% LEL
C,I Cr::
Subject Property Building
2213 Toomey Ave
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Sol
egetata
Vegetated
Floor Drain and Concrete
Sump Pump
Former
Chrome Plating
AreaiSump o
SG2
Vegetated
Concrete
0
S03
Vegetated
U ndeve lopedl
"Power Site' Brownfield Site
10 S U 10 20 536 West Tremont Ave
pprarnnaie ea e:
10 10 A 10 PARTNER
2/26/2021

Multi -family Parcel -
2020 Phase II Limited
Site Assessment (LSA)
Sample Location Map
• No on -site historical uses of concern
• Residential
• Commercial (Plumbing Supplier/Shoemaker/Office/Martial
Arts and Fitness Studio)
• Light industrial (Fleet Maintenance / Fencing and Grading
Contractor)
• Off -site concerns
• Powers Site (536 W. Tremont Ave.) — landfill/Methane
• Adams site (510 W. Tremont Ave.) — Landfill/methane
• Dynatech site (2213 Toomey Ave.) — Metals
Legend
Subject Property
Soil Boring
Methane Sail Gas Probe
ethane/OC Soil Gas
Probe
iervice Metall
2320 Toomey
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2/26/2021