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HomeMy WebLinkAboutNC0005274_More Information (Received)_20190607Lowell Investments 1, LLC 5320 Old Pineville load, Charlotte, NC 28217 `Iel (704) 364-9100 7 June 2019 W. Corey Basinger, Regional Supervisor Water Quality Regional Operations Section Mooresville Regional Office Division of Water Resources, NCDEQ 610 East Center Avenue, Suite 301 Mooresville, NC 28115 Re: Unanticipated Wastewater Release Lowell Investments 1, LLC NPDES Permit No. NC0005274 Gaston County Dear Mr. Basinger: JUN 3 201 VVQROS Via Email Via Certified Mail On Monday, 3 June 2019 shortly after noon I met with our contract landscapers at the facility at 1602 N. Main St. in Lowell. While reviewing the area, we discovered that stainless steel valves and/or blind flanges had been unbolted and removed from ports at the base of Tanks 4 and 5, presumably by vandals scavenging the metal for scrap value, resulting in release of most of the water in those tanks. Solids in the water from Tank 4 had left a thin sediment residue on the asphalt beneath the single opened port on that tank. Two opened ports on Tank 5 showed evidence of forceful water release but no sediment residue. Subsequent further investigation' revealed that a valve had been unbolted and removed from Tank 3, which had been dewatered in a previous act of vandalism earlier this year, and some sludge from Tank 3 had been released and water was dripping from the opened port. Tanks 3, 4 and 5 are located in a gravel and asphalt lined slight depression on the northeast side of the property on a hill above the South Fork Catawba River. Discoloration indicated the presence of the released wastewater on the surrounding gravel and asphalt ground surface. There are three grating -covered sump openings in this area with visible drain pipes connected. Although we have been unable to find drawings for theses drains, we located a large pipe emerging from the hill below the tank area at the beginning of a path of discoloration down a section of larger riprap rock traceable all the way to the river below. There was no sediment or sludge deposit evident coming from this pipe, or in the path down the hill to the river. The pipe had an open gate valve, which we left closed. Based on measurements taken in December 2018, approximately 575,000 gallons of water were released from Tanks 4 and 5 sometime between 17 May 2019 (when wastewater handlers were on -site assessing Work Plan details for upcoming planned discharge) and 3 June 2019. tlnanticipatc d 11'Eistewaler Release 7 June 2019 p((ge 2 of 2 A back gate behind the tank area which leads down the hill to the river and which had been padlocked shut was found open. The chain and padlock were replaced on this gate by the end of the day Monday (3 June); however, the lock was found cut and the gate again open Tuesday morning when NCDEQ and Gaston County representatives were on -site. A report was filed with the Lowell Police Dept., and the lock was replaced again on Tuesday. Other corrective actions and measures taken: • The port on Tank 3 was sealed shut with gasket and blind flange with no further water release by approximately 11:00 a.m. on Tuesday, 4 June. • Blind flanges were bolted onto opened ports on Tanks 4 and 5. • On all flanges and valves on all tanks, nuts were welded to bolts to make it extremely difficult for these to be removed by vandals so that no further discharge can occur. • Sludge solids were scraped and shoveled from the asphalt and gravel ground areas around Tanks 3 and 4 and placed in a covered container for proper disposal. • The three sumps in the tank area were sealed shut with impervious foam, caulk and plastic caps to prevent any water from entering them. Pumping of liquids and solids from these sumps and using a camera to trace pipeline pathways are planned for next week. • Three openings cut into the property perimeter fence on the west side of the property were repaired. • Sampling of remaining tank wastewater is scheduled for next Tuesday (11 June). Please contact me at (919) 906-6559 or marijonAforsiteinc.com if you have any questions. Sincerely, MariJon Owens Site Manager, Forsite Development Cc: Ori Tuvia, NCDEQ by email only Mike Templeton, NCDEQ by email only Harry Zinn, NCDEQ by email only Joselyn Harriger, NCDEQ by email only