MO-28738_47974_CA_RPTS_20210721_UST Inspection

Cedar Rock
ENVIRONMENTAL
July 21, 2021
Revocable Trust of Sharon Saville Parker c/o
Ms. Jessica Parker
212 West Friendly Avenue
Greensboro, NC 27401
CEDAR ROCK ENVIRONMENTAL, P.C.
107 Pioneer Trail
Graham, NC 27253
[phone]
Reference: Inspection of an underground storage tank (UST) located at 6342 Deveron Drive,
Charlotte, North Carolina
Cedar Rock Project # 325222590
Dear Ms. Parker:
Cedar Rock Environmental, P. C. (Cedar Rock) performed a site inspection on July 21, 2021 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 1958 which is most likely when the UST was installed.
An inactive UST was observed to be located perpendicular to and centered approximately 9.6 feet off the
southeastern foundation wall and about 40.0 feet northeast of the south foundation corner of the house (see
Site Sketch). Both the fill and vent pipes to the UST were observed to be intact. The depth to the top of
the UST is approximately 29 inches below land surface (bls). The UST has an estimated length of about
75 inches with a diameter of approximately 44.75 inches and an estimated capacity of about 550 gallons.
The tank was measured to contain approximately 170 gallons of fluid. White flagging was installed to mark
the ends of the UST (see Photo). No other USTs used for storing heating oil were discovered on the property
using a metal detector to survey the outside perimeter of the residence where USTs are usually located.
Two copper fuel delivery/return lines were observed in the basement/crawlspace extending about 1.5 feet
off the foundation wall adjacent to the UST where they were cut and crimped closed. No petroleum odors
or stains were observed in the basement/crawlspace; however, plastic was lining the floor which limited the
inspection.
Once the orientation of the UST was determined, a soil boring was performed at the southeastern end of
the tank using a 3.25-inch diameter stainless steel hand auger. The boring was advanced to a depth of
approximately 5.5 feet bls, about 0.6 feet above the bottom of the UST. A strong petroleum odor and
discoloration was observed in the soils from a depth of approximately 5.0 to 5.5 feet bls suggesting
significant leakage from the UST has occurred. The soils at the base of the boring consist of a grayish blue
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,

Ms. Jessica Parker
July 21, 2021
Page 2
upon reporting the release, the current property owner where a release is discovered is identified by the
State as the "Responsible Party" for any State required action relating to the UST leakage. Upon your
request, Cedar Rock is submitting 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 143B-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 initial abatement or remedial action of the soils regarding the release of
heating oil from a UST on a "Low Risk" property, however, they will require removal of the tank contents
and properly cleaning the tank interior to abate the petroleum release. 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 also 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 a structurally supportive yet 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 $3,200.00 plus $1.25 per gallon
of recovered fluids. Preparing and filing the NRP and performing the Public Notification requirement will
cost an additional $1,250.00. The total for the project will be $4,700.00.
Attached is an invoice for the site inspection. 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,
Robert A. Payne, N.Cricensed Geologist #0970
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Ms. Jessica Parker
July 21, 2021
Page 3
40 ft
Deveron Drive
Site Sketch. Not to scale. Sketch used for reference purposes only.
Photo. View of the UST location. Both ends of the UST are marked with white flags.

Beverly, Trudy
From: Beverly, Trudy
Sent: Monday, July 26, 2021 8:12 AM
To: [e-mail]
Subject: RE: [External] UST-61 form for the Revocable Trust of Sharon Saville Parker Property
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-program
INTERACTIVE MAPS WITH DWM SITES AND PERMITTED FACILITIES:
httns://deu.nc. gov/about/divisions/waste-management/waste-management-rules-data/waste-management-gis-mans
File Review Procedures:
ht_pt s://deq.nc.gov/about/divisions/waste-management/ust/file-review-procedures#mooresville-regional-office
ONLINE ACCESS TO UST SECTION DOCUMENTS (Laserfiche):
htt2s://deg.nc.gov/about/divisions/waste-mana2ement/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: Monday, July 26, 2021 8:09 AM
To: Beverly, Trudy <[e-mail]>
Subject: [External] UST-61 form for the Revocable Trust of Sharon Saville Parker Property
CAUTION: External email. Do not click links or open attachments unless you verify. Send all suspicious email as an attachment to
Report Spam.
Hi Trudy
I think I forgot to hit send on this. UST-61 form and a copy of our inspection report attached for a release at the above
property.
Thanks
Damien Callaghan
Cedar Rock Environmental