MO-28176_47436_CA_O_20200910_Tank Inspection

Cedar Rock
ENVIRONMENTAL
September 10, 2020
Mr. Ryan Kozusko
7527 Glencannon Drive
Charlotte, NC 28227
CEDAR ROCK ENVIRONMENTAL, P.C.
107 Pioneer Trail
Graham, NC 27253
[phone]
Reference: Inspection of an underground storage tank (UST) located at 7527 Glencannon Drive,
Charlotte, North Carolina
Cedar Rock Project # 302222590
Dear Mr. Kozusko:
Cedar Rock Environmental, P. C. (Cedar Rock) performed a site inspection on September 7, 2020 at the
above referenced location. The purpose of the inspection was to determine if the UST previously used for
storing heating oil had leaked causing significant contamination of the underlying soils. It is our
understanding the residence was built in 1967 which is most likely when the UST was installed.
An inactive UST was observed to be located parallel to and centered beneath the easternmost northern
foundation wall the house (sunroom) and about 6.0 feet west of the easternmost northeastern corner of the
house (sunroom). Both the fill and vent pipe(?) of the UST were observed to be intact and elbowed out
from beneath the sunroom slab with the suspected vent pipe being capped. The depth to the top of the UST
is approximately 26 inches below land surface (bls). The UST has a length of about 62 inches with an
estimated diameter of approximately 35 inches and an estimated capacity of about 270 gallons. The
contents of the UST could not be determined as there was no direct access to the interior of the tank,
however, based on sounding with a probing rod, the tank does not appear to be full. White flagging was
installed to mark the ends of the UST. No other USTs on the property were discovered using a metal
detector to survey the outside perimeter of the residence where USTs are usually located. A single copper
fuel delivery line was observed to be cut and crimped inside the crawlspace. No petroleum odors were
observed in the crawlspace from the crawlspace entry in the sunroom.
Once the orientation of the UST was determined, a soil boring was performed along the northern side of
the tank at its western end using a 3.25-inch diameter stainless steel hand auger. The soil boring was
advanced to a depth of approximately 3.0 feet bls, about 3.0 feet above the bottom of the UST. A strong
petroleum odor and local discoloration was observed in the soils from a depth of approximately 2.5 to 3.0
feet bls suggesting significant leakage from the UST has occurred. The soils at the base of the boring
consist of an orange brown sandy silt.
The property is currently serviced by a municipal water supply. No water supply wells were observed
within 150 feet of the petroleum release. For this reason, the property should be classified as "Low Risk"
by the State.
Based on the results of this investigation, significant contamination of the soils surrounding the UST has
been confirmed. Current law (NCGS 143-215.85 (a) and (b)) requires that any significant release of
petroleum be immediately reported to the North Carolina Department of Environmental Quality (DEQ),
Division of Waste Management, Mooresville Regional Office (704-663-1699). According to State law,
upon reporting the release, the current property owner where a release is discovered is identified by the

Mr. Ryan Kozusko
September 10, 2020
Page 2
State as the "Responsible Party" for any State required action relating to the UST leakage. Upon your
request, Cedar Rock will submit a UST-61 form to satisfy the State's notification requirement for the
release.
Currently, the property cannot be legally conveyed until a Notice of Residual Petroleum (NRP) is filed with
the Mecklenburg County Register of Deeds office pursuant to NCGS 14313- 279.11 (d). The NRP will
contain applicable land use restrictions to minimize the risk of exposure to existing contamination. The
land use restrictions prohibit any disturbance of site soils within a specified radius of the estimated extent
of soil contamination and prohibit the future operation or installation of any water supply wells on the
property. Once classified as "Low Risk" and upon approval of the NRP, the DEQ will issue a "Conditional"
Notice of No Further Action (NFA) letter to formally close out the release incident. The "Conditional"
provision in the NFA letter will be removed upon receiving a certified copy of the filed NRP and
the completion of Public Notification requirements. Filing the NRP and performing Public Notification
would not be required if all soil contamination exceeding applicable standards has been removed.
The State currently will not require any initial abatement or remedial action regarding the release of heating
oil from a UST on a "Low Risk" property. However, once the presence of the UST and confirmed
contaminated soil is disclosed to other interested parties as required by State law, future
buyers, homeowner's insurance providers, or lenders may require initial abatement and/or remedial actions
relating to the UST prior to making any commitments towards the property. In addition, there exists a
potential for further environmental impact to the property from continued leakage from the UST.
Currently, the presence of the soil contamination does not appear to pose any known health risk. Attempting
to remove the UST and associated contaminated soils is costly, would be disruptive to the property, and
may not result in a clean closure. For these reasons, we recommend the in -place abandonment of the UST.
The tank abandonment would consist of exposing a portion of the UST by hand excavation, cutting a hole
about two feet in diameter on the topside of the UST, removing all tank and fuel line contents, cleaning of
the tank interior, and filling the tank with an excavatable flowable fill cement slurry. A summary report
signed by a licensed geologist would be generated that would include photographs of each step of the
abandonment process, including a photograph of the interior of the UST to show the UST was properly
cleaned. Cedar Rock can provide this service for a charge of $3,300.00 plus $1.25 per gallon of recovered
fluid. Preparing and filing the NRP and performing the Public Notification requirement will cost an
additional $1,250.00.
Included with this report is our invoice. We appreciate the opportunity to be of service to you. If you have
any questions regarding the content of this report, please call me at 336-376-0394.
Sincerely,
0�ct Pa
Robert A. Payne, N.C. Geologist #0970
Attachment

Beverly, Trudy
From: Beverly, Trudy
Sent: Tuesday, December 22, 2020 11:06 AM
To: [e-mail]
Subject: RE: [External] Ryan Kozusko Property reports
Received.
Trudy
Trudy Beverly, L.G.
D
IE �1
Hydrogeologist, Division of Waste Management
_ North Carolina Department of Environmental Quality
Q�
LF Pa.rI n. of Lnorun,w 0MOT ` UST Section, Mooresville Regional Office
704.235.2182 (Office)
Trudy. B everlykncdenn gov
Email correspondence to and from this address is subject to the
North Carolina Public Records Law and may be disclosed to third parties.
Office Mailing Address:
610 East Center Avenue, Suite 301
Mooresville, NC 28115
Branch's Underground Storage Tanks Website Address: ht_pt s://deg.nc.gov/about/divisions/waste-management/ust
Branch's Above Ground Storage Tanks Website Address: hgps:Hdeg.nc.gov/about/divisions/waste-management/ust/ast-proeram
INTERACTIVE MAPS WITH DWM SITES AND PERMITTED FACILITIES:
httns://deu.nc. eov/about/divisions/waste-manaeement/waste-manaeement-rules-data/waste-manaeement-eis-mans
File Review Procedures:
ht_pt s://deq.nc.gov/about/divisions/waste-manaeement/ust/file-review-procedures#mooresville-regional-office
ONLINE ACCESS TO UST SECTION DOCUMENTS (Laserfiche):
httns: //dea.nc. eov/about/divisions/waste-manaeement/laserfiche
Document Submittal & UST File Names for Laserfiche Policies:
httys:Hfiles.nc.eov/nedea/Waste%2OMana2ement/DWM/UST[WhatsNew/Final-Electronic-Document-Submittal-Policy.odf
https:Hfiles.nc.gov/ncdeg/Waste%2OManagement/D WM/UST/Corrective%2OAction/UST%20file%20names%20for%2OLaserfiche.docx
From: [e-mail] [mailto:[e-mail]]
Sent: Tuesday, December 22, 2020 11:03 AM
To: Beverly, Trudy <[e-mail]>
Subject: [External] Ryan Kozusko Property reports
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Ryan Kozusko property reports attached.
Damien