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Home My WebLink AboutMO-28796_48021_CA_O_20210823_UST InspectionCedar Rock ENVIRONMENTAL August 23, 2021 Ms. Suzanne Wittebort 3130 Fairfax Drive Charlotte, NC 28209 CEDAR ROCK ENVIRONMENTAL, P.C. 107 Pioneer Trail Graham, NC 27253 (336) 376-0394 Reference: Inspection of an underground storage tank (UST) located at 3130 Fairfax Drive, Charlotte, North Carolina Cedar Rock Project # 327022590 Dear Ms. Wittebort: Cedar Rock Environmental, P. C. (Cedar Rock) performed a site inspection on August 23, 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 1948 which is most likely when the UST was installed. An inactive UST was observed to be located beneath a brick patio perpendicular to and centered approximately 7.4 feet off the western foundation wall of the house and about 9.0 feet south of the northern foundation wall of the house (see Site Sketch). Both the fill and vent pipe of the UST were observed to be intact. The depth to the top of the UST is approximately 31 inches below land surface (bls). The UST has an estimated length of about 74 inches with a diameter of approximately 45 inches and an estimated capacity of about 550 gallons. The UST was measured to contain approximately 284 gallons of fluid. White flagging was installed to mark both ends of the UST (see Photo). 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. No petroleum odor was observed in the crawlspace from the crawlspace entry. Due to nearby unmarked utilities, no soil borings were performed to inspect the soils beneath the tank to determine if the tank had leaked. However, based on the age of the UST (over 70 years old) and the presence of oily water in the tank, we would expect the tank is most likely leaking. Confirmation of leakage would best be achieved during the abandonment of the UST after the tank has been properly cleaned. At least one access hole in the bottom of the tank will be cut in order to access the soils beneath the tank. 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, if the presence of soil contamination is later confirmed, the property should be classified as "Low Risk" by the State. In the event soil contamination is later 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 State as the "Responsible Party" for any State required action relating to the UST leakage. In such case, Cedar Rock will submit a UST-61 form to satisfy the State's notification requirement for the release upon your request. Ms. Suzanne Wittebort August 23, 2021 Page 2 In the event soil contamination exists, 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 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. If contamination does exist, it does not appear that it would pose any known health risk. However, we recommend the in -place abandonment of the UST to prevent future or further leakage and to prevent the UST from collapsing. The tank abandonment would consist of cutting a hole about one foot in diameter near 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 flowable fill cement slurry. Determining if the UST has leaked resulting in significant contamination of the surrounding soils would be made at this time. 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 $3,500.00 plus $1.25 per gallon of recovered fluids. If required, 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. .0,vri""1 uFjjq,j�e Sincerely, #O NC. Robert A. Payne, N.C�icensed Geologist #0970 =L O70 1�6 f#,,gyw off,,. Attachment Ms. Suzanne Wittebort August 23, 2021 Page 3 9ft r� Fairfax Drive Site Sketch. Not to scale. Sketch used for reference purposes only. .• - .. I_,* L Photo. View of the UST location. Both ends of the UST are marked with white flags. Beverly, Trudy From: Beverly, Trudy Sent: Tuesday, September 7, 2021 6:40 AM To: damienkc@bellsouth.net Subject: RE: [External] UST-61 form submission for the Suzanne Wittebort Property, 3130 Fairfax Drive, Charlotte Received. Trudy Trudy Beverly, L.G. D-�IE Hydrogeologist, Division of Waste Management North Carolina Department of Environmental Quality IFepnrlren[ol Gma'nn mental4w UST Section, Mooresville Regional Office 704.235.2182 (Office) Trudy. B everlykncdenr. 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: https://deg.nc.gov/about/divisions/waste-management/ust Branch's Above Ground Storage Tanks Website Address: hit2s://deq.nc.gov/about/divisions/waste-management/ust/ast-program INTERACTIVE MAPS WITH DWM SITES AND PERMITTED FACILITIES: httns://dea.nc. gov/about/divisions/waste-management/waste-management-rules-data/waste-management-gis-mans File Review Procedures: hops://deq.ne. gov/about/divisions/waste-management/ust/file-review-procedures#mooresville-regional-office ONLINE ACCESS TO UST SECTION DOCUMENTS (Laserfiche): fts://deq.nc.gov/about/divisions/waste-manaizement/laserfiche Document Submittal & UST File Names for Laserfiche Policies: htti)s:Hfiles.ne.izov/nedeafWaste%2OMana2ement/DWM/UST[WhatsNew/Final-Electronic-Document-Submittal-Policv.l)df https:Hfiles.nc.gov/ncdeq/Waste%20Management/D WM/UST/Corrective%2OAction/UST%2Ofilc%20names%20for%2OLaserfiche.docx From: damienkc@bellsouth.net [mailto:damienkc@bellsouth.net] Sent: Friday, September 3, 20214:09 PM To: Beverly, Trudy <trudy.beverly@ncdenr.gov> Subject: [External] UST-61 form submission for the Suzanne Wittebort Property, 3130 Fairfax Drive, Charlotte 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 UST-61 form and a copy of our inspection report for a release at the above address. The release was confirmed today during the abandonment of the UST. When available, I will send you a copy of the abandonment report. Thanks Damien Callaghan Cedar Rock Environmental