MO-4523_14987_G_C_20190205_Report Receipt Letter

ROY COOPER NORTH CAROLINA
Governor Environmental Quality
MICHAEL S. REGAN
Secrerary
MICHAEL SCOTT
Director
February 5, 2019
NCDOT
Roadside Environmental Unit
1557 Mail Service Center
Raleigh, NC 27699-1557
Attn: Jeff Walston
(via email)
Re: Acknowledgement of Report Receipt
NCDOT Mt. Pleasant Maintenance Yard
150 Dutch Rd (SR 2604), Mount Pleasant
Cabarrus County
Incident Number: 14987
Risk Classification: High
Dear Mr. Walston:
The UST Section, Division of Waste Management (DWM), Mooresville Regional Office (MRO) received the
December 6, 2018 Groundwater Monitoring Report on December 27, 2018. The report recommending conducting at least
two (2) additional sampling events of monitoring well network to monitor for temporal trends particularly in monitoring
well MW-6R and obtaining top -of -casing elevations via a survey of monitoring wells TP-1, TP-2, MW-4R, and MW-6R
during the next sampling event was reviewed and approved on February 5, 2019. The paper report copy will be
maintained in the MRO. The electronic copy has been loaded to the electronic document storage system (Laserfiche).
The report indicates:
• The groundwater flow direction in the shallow aquifer (3 to 25 feet bls) is estimated to be to the north.
• C11-C22 Aromatics were detected at a concentration above 2L Standards in MW-6R.
• Compounds were not detected above 21, Standards in the other nine monitoring wells Sampled.
• There was no visual evidence of water supply wells within a 500-foot radius of the site. Two water supply wells
were visually observed within 1,000 feet to the north of the site. WSW-3 was sampled (below detection limits).
WSW-2 did not respond to the sampling request.
• Dutch Buffalo Creek is located approximately 300 feet to the west of the source area.
• Based on measured groundwater concentrations, petroleum vapor intrusion is likely not a concern for this site.
The next semi-annual groundwater monitoring event shall occur in May 2019 with the
Groundwater Monitoring Report submittal due to this office by June 30, 2019. Please note that sampling
NORTH C.4R0.'+1A�E Q�
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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

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.Beverly(@ncdenr.gov or
telephone at [phone].
Sincerely,
Trudy Beverly, L.G.
Hydrogeologist
Mooresville Regional Office
UST Section, Division of Waste Management, NCDEQ
cc: Mike Downs, Cabarrus County Manager (via email)
David Troutman, Cabarrus County Health Department (via email)
Flora J. D'Souza, Terracon (via email)
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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: Tuesday, February 5, 2019 3:32 PM
To: Walston, Jeffrey D
Cc: 'DSouza, Flora J; 'Mike Downs'; 'David Troutman'
Subject: NCDOT Mt. Pleasant Maintenance Yard #14987 — Acknowledgement of Report Receipt
letter
Attachments: MO-4523_14987_G_C_20190205_Report Receipt Letter.pdf
Please see the attached Acknowledgement of Report Receipt letter for NCDOT Mt. Pleasant Maintenance Yard located
at 150 Dutch Rd (SR 2604), Mount Pleasant.
Trudy
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NORTH CAROLINA
Department of Environmental Dikality
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Email correspondence to and from this address is subject to ttu
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://deq.nc.gov/about/divisions/waste-management/ust
Branch's Above Ground Storage Tanks Website Address: https://deg.nc.gov/about/divisions/waste-management/ust/ast-program
INTERACTIVE MAPS WITH DWM SITES AND PERMITTED FACILITIES:
https://deg.nc.gov/about/divisions/waste-management/waste-management-rules-data/waste-management-gis-maps
File Review Procedures:
https://deq. nc.gov/about/divisions/waste-management/ust/file-review-procedures#mooresvi I le -regional -office
ONLINE ACCESS TO UST SECTION DOCUMENTS (Laserfiche):
https://edocs.deq.nc.gov/WasteManagement/Search.aspx
Document Submittal & UST File Names for Laserfiche Policies:
https://files.nc.gov/ncdea/Waste%20Manaizement/DWM/UST/Corrective%2OAction/Electronic%2ODocument%2OSubmittal%2OMe
mo%20Update.pdf
httDs:Hfiles.nc. izov/ncdea/Waste%2OMana,2ement/DWM/UST/Corrective%2OAction/UST%20file%20names%20for%2OLaserfiche.d
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