MO-3418_8608_G_NORR_20200717_Notice of Regulatory Requirements

ROY COOPER NORTH CAROLINA
Governor Environmental Quality
MICHAEL S. REGAN
Secretary
MICHAEL SCOTT
Director
July 17, 2020
Ray's Amoco
Attn: Larry Welch
17817 McKee Road
Charlotte, NC 28278
(via email)
Re: Notice of Regulatory Requirements
15A NCAC 2L .0407(b)
Risk -based Assessment and Corrective Action
for Petroleum Underground Storage Tanks
Ray's Gulf
1501 S Mint Street, Charlotte
Mecklenburg County
Incident Number: 8608
Risk Classification: Intermediate
Dear Mr. Welch:
The UST Section, Division of Waste Management (DWM), Mooresville Regional Office
(MRO) received the May 20, 2020 Monitoring Reports on June 10, 2020. The report recommending
additional assessment prior to conducting additional remedial actions. was reviewed and approved on
June 24, 2020. The electronic copy has been loaded to the DWM's electronic document storage
system (Laserfiche).
The report states:
• No water supply wells or surface water bodies have been identified within 1,500 feet of the
site;
• LNAPL was not measured in the wells before or after the MMPE, nor at the time of
sampling. However, during the post MMPE sampling event a film of LNAPL was observed
in the bailer while purging monitoring well MW-1;
• Approximately 4,782 gallons of water and approximately 15.86 pounds (2.58 gallons) of
VOCs in the vapor phase were removed from MW-1 during the MMPE event. Monitoring
North Carolina Department of Environmental Quality I Division of Waste Management
Mooresville Regional Office 1 610 East Center Avenue, Suite 301 1 Mooresville, North Carolina 28115
704.663.1699

well DMW-1 was connected to the MMPE system for four hours on the second day of the
MMPE event;
• During the MMPE event, groundwater levels in wells MW-2 and MW-3 decreased by 0.6
feet and 5.05 feet, respectively, suggesting groundwater flow toward well MW-1 during the
MMPE event.
• The concentration of benzene exceeded the GCL in monitoring well MW-I and the
concentration of MTBE exceeded the GCL in DMW-1;
• Other contaminants were detected at concentrations exceeding their 2L Standards in all wells
sampled;
• The depth to groundwater ranged from approximately 11.5 to 12 ft-bgs on April 14, 2020;
and
• Groundwater is estimated to flow to the northwest.
Per this Notice of Regulatory Requirements:
• The next sampling event shall be conducted near the end of August 2020. The Letter
Monitoring Report for the August 2020 sampling event is due no later than September 30,
2020.
Please note that sampling and correction action must be conducted in accordance with the
Guidelines for Assessment and Corrective Action for UST Releases. Failure to comply in the
manner and time specified may result in the assessment of civil penalties and/or the use of the other
enforcement mechanisms.
If you have any questions regarding trust fund eligibility or reimbursement from the
Commercial or Noncommercial Leaking Petroleum Underground Storage Tank Cleanup Funds,
please contact the UST Section Trust Fund Branch at [phone]. If you have any questions
regarding the actions that must be taken or the rules mentioned in this letter, please contact me by
email at Trudy.Beverlykncderingov or telephone at [phone].
Sincerely,
k-� `I 164j+
Trudy Beverly, L.G.
Hydrogeologist
Mooresville Regional Office
UST Section, Division of Waste Management, NCDEQ
cc: Al Quarles, ATC Associates of North Carolina, P.C. (via email)
Brett Morris & Shawna Caldwell, Mecklenburg County Environmental Health, Groundwater
& Wastewater Services (via email)
D F.
North Carolina Department of Environmental Quality I Division of Waste Management
Mooresville Regional Office 1 610 East Center Avenue, Suite 301 1 Mooresville, North Carolina 28115
704.663.1699

Beverly, Trudy
From: Beverly, Trudy
Sent: Friday, July 17, 2020 9:56 AM
To: Larry Welch
Cc: Morris, Brett L.; Caldwell, Shawna; Al Quarles
Subject: Ray's Gulf - UST Incident #8608 — Notice of Regulatory Requirements
Attachments: MO-3418_8608_G_NORR_20200717_Notice of Regulatory Requirements.pdf
Please see the attached Notice of Regulatory Requirements letter for Ray's Gulf located at 1501 S Mint Street, Charlotte,
Mecklenburg County, North Carolina (Incident #8608).
Have a wonderful day,
Trudy
Trudy Beverly, L.G.
D-. E W Hydrogeologist, Division of Waste Management
North Carolina Department of Environmental Quality
UST Section, Mooresville Regional Office
704.235.2182 (Office)
Trudy.B everly(cbncdenn 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: hitps://deq.nc.gov/about/divisions/waste-management/ust
Branch's Above Ground Storage Tanks Website Address: https://deq.nc.gov/about/divisions/waste-management/ust/ast-program
INTERACTIVE MAPS WITH DWM SITES AND PERMITTED FACILITIES:
httos://dea.nc. eov/about/divisions/waste-management/waste-management-rules-data/waste-management-eis-maps
File Review Procedures:
https://deq.nc. gov/about/divisions/waste-management/ust/file-review-procedures#mooresville-regional-office
ONLINE ACCESS TO UST SECTION DOCUMENTS (Laserfiche):
https: //deq.nc. gov/about/divisions/waste-management/laserfiche
Document Submittal & UST File Names for Laserfiche Policies:
https:Hfiles.nc.gov/ncdeg/Waste%2OManatiement/DWM/UST/WhatsNew/Final-Electronic-Document-Submittal-Policv.pdf
https:Hfiles.nc.gov/ncdegfWaste%20Management/D WM/UST/Corrective%2OAction/UST%20file%20names%20for%2OLaserfiche.docx