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HomeMy WebLinkAboutRA-978_6508_G_NORR_20221216_SA MRP CAP RQST ROY COOPER Governor ELIZABETH S. BISER Secretary MICHAEL SCOTT Director North Carolina Department of Environmental Quality | Division of Waste Management | UST Section Washington Regional Office | 943 Washington Square Mall | Washington, NC 27889 | (252) 946-6481 December 16, 2022 Ms. Yvonne Jones Eastern Petroleum Corporation Post Office Box 398 Enfield, NC 27823 Re: Notice of Regulatory Requirements 15A NCAC 2L .0407(d) [Intermediate Risk] Risk-based Assessment and Corrective Action For Petroleum Underground Storage Tanks EP Mart #2 1300 Raleigh Road, Rocky Mount Edgecombe County Incident Number: 6508 Risk Classification: Intermediate Ranking: I 140 D Dear Ms. Jones: The Underground Storage Tank (UST) Section, Division of Waste Management, Department of Environmental Quality (Department) has received the December 15, 2022 Ground Water Monitoring Report, documenting the results from groundwater sampling efforts conducted onsite on December 1, 2022. During this most recent sampling event, groundwater samples from multiple monitoring wells demonstrated petroleum compounds at concentrations above the applicable groundwater quality standards (GWQS) defined in Title 15A of the North Carolina Administrative Code (NCAC) Subchapter 2L .0202. Additionally, benzene was detected in the ground water sample from monitoring well MW-3 at a concentration in excess of the Gross Contaminant Level (GCL) defined for that compound under Title 15A NCAC 2L .0406(2)(e). Accordingly, the risk classification for this release remains Intermediate. A semiannual groundwater sampling event should be scheduled for the 2nd quarter of 2023, with a report documenting the results submitted no later than July 29, 2023. As GCL exceedances continue to be observed at this site, additional remedial activities and/or supplemental assessment efforts are necessary to assist in the restoration of groundwater. No proposed remedial strategy was provided among the recommendations in the report. Such recommendations must be made for review by the Department to determine if formal evaluation via a Feasibility Study is appropriate. Effective October 1, 2004, the Department requires that all work not determined to be an emergency response or associated with risk assessment (i.e., the Limited Site Assessment Report, per Title 15A NCAC 2L .0405) must be preapproved if Commercial Leaking Petroleum Underground Storage Tank Cleanup Fund (Trust Fund) reimbursement is anticipated. To comply with this requirement, a completed Preapproval/Claim Authorization Form encompassing the scope of work described above must be received and approved by this office well prior to the start of any tasks for which you intend to seek reimbursement. Recommended remedial alternatives may be proposed in the scope of work explanation associated with a preapproval request that includes any appropriate measures to evaluate the feasibility of that strategy (e.g., a pilot study for the utilization of air sparging, oxygen demand testing for evaluation of oxygen releasing compound injections, etc.) Upon completion of any preapproved activities, you should submit your claim promptly. Reimbursement funds are budgeted based on completed preapprovals, but delays in reimbursement or even denial due to a failure to meet the statute of limitations on claiming a completed task can result if the work is not completed in a timely fashion or if claims are not submitted immediately following work completion. If you have any questions regarding eligibility or reimbursement from the Trust Fund, please contact the UST Section Trust Fund Branch at (919) 707-8171. If you have questions about the information contained in this letter, please contact me at the physical address, telephone number, or email address below. Sincerely, Jared M. Edwards Environmental Program Consultant - Washington Region UST Section, Division of Waste Management, NCDEQ (252) 948-3949 / jared.edwards@ncdenr.gov cc: Geological Resources, Inc., Ms. Rae Troiano Brown (electronic copy) Washington Regional Office | 943 Washington Square Mall | Washington, NC 27889 | (252) 946-6481