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HomeMy WebLinkAboutWQCS00210_NOI_NOV2020DV0019_Response_20200121 (2)Council Members Barry Kaufman, Mayor Jimmie Accardi, Vice Mayor Weidner Abernethy Kelly Melang Erin Gonyea 1111A BEECH MOUNTAIN N O R T H C A R O L t N A Eastern America's Highest Town Lon T. Snider, Regional Supervisor NCDEQ-DWR 450 West Hanes Mill Road, Suite 300 Winston Salem, NC, 27105 SUBJECT: RESPONSE TO NOV/NOI NOTICE Interim Town Manager Bob Pudney Town Attorney Stacy C. Eggers IN' Ives L),�Narcirient w Environmental Quality Received JAN 2 1 2u2j Winston-Salem Regional CF INCIDENT NUMBER — 201901663 267 Greenbriar Rd. Collection System Permit No. WQCS00210 Beech Mountain Collection System Watauga County J �0 The Town of Beech Mountain received notice on January 10, 2020 with a NOV/NOI issuance concerning the Sanitary Sewer Overflow at 267 Greenbriar Rd. occurring on October 22, 2019. This letter explains the situation and response. On the morning of October 22d, 2019 on or about 9AM we at the Public Utilities Department received notice of an occurring sanitary spill on Pond Creek. We took immediate action to find the spill site as it was described to us by an email from Andrea Leslie of NC Wildlife. Andrea notified us of an email she received from one of their inspectors while they were investigating another site nearby on Pond Creek. From the description given, we were able to find the problem area quickly and begin repairs. The situation we found was that an abandoned section of collection system piping had been uncovered along the creek bank from an earlier time in Beech Mountain history. About 50 feet of pipe had been exposed by summer rains that simply ended near the edge of the bank. A small waste flow was discharging from the pipe. It was off the roadway on the outfall line, about 300 feet down a walking trail along the Creekside and was hidden underneath a bank of laurel bushes. We rented a small excavator that would be able to access the site for repairs quickly and had begun digging for repair operations by 1 PM that same day. It was obviously going into the side of the nearest manhole. We found that this exposed pipe was not evident inside that manhole as an outlet. We entered the manhole for closer inspection and found that in the poured concrete of the invert there was a small broken away section of the concrete in a half moon shape and very narrow. We then understood that sometime in the past the section of pipe we were following into the manhole had been abandoned and grouted from the inside to close off the section. Over time, a piece of that grout had broken and was allowing flow from the manhole to seep down that section of pipe. We judged that this had been happening only for a short time because the edge of the breakaway was still jagged and sharp, not showing any sign of smoothing and wear from flow. www.townofbeechmountainxom Council Members Barry Kaufman, Mayor Jimmie Accardi, Vice Mayor Weidner Abernethy Kelly Melang Erin Gonyea t*A BEECH MOUNTAIN NO R T H CARO L INA Eastern America's Highest Town Interim Town Manta& Bob Pudney Town Attomey Stacy C. Eggers IV Repairs were made quickly. We knocked out and grouted again inside the manhole. We cut away and removed the pipe section outside the manhole and grouted from the outside in as well. Removed the old pieces of pipe and limed the site. There was not visible presence of solids anywhere onsite as it was a small crack allowing water to pass through. We were off the site by 5PM that same day. We had no idea that this pipe was there. It was not on any map, and the invert had to be seen up close from a side view to even see the broken area. We have spent a lot of time an effort here on Beech Mountain to accurately map and understand our collection system as it has evolved through the years. We have GIS mapping and data collection, manhole mapping systems complete with inspection and grading of the manholes and photos of interior and top of most all of them to aid us in operation and maintenance of our system into the future. We also have our own Jet/Vac truck and camera gear to allow us to continually maintain knowledge and cleaning of the system. We have had all these things for years which speaks to our commitment to proper operations in our system. I hope that this explanation shows that it was completely accidental, and we could have in no way foreseen this spill. Also, that we responded quickly and efficiently to the situation and effected proper and lasting change to this site to prevent any further occurrence. Please consider our efforts to continually provide an excellent system of use and protection for our residents and our environment. Please contact me with any questions at 828-387-9282 or BMUS@TownofBeechMountain.com. Thank you, 1 Daniel Davis Public Utilities Superintendent Town of Beech Mountain wwm.townofbeechmountain.com