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HomeMy WebLinkAboutNC0071528_Response to NOV 2023-LM-0045_20230719July 18, 2023 Mr. Andrew H. Pitner, P. G., Assistant Regional Supervisor Water Quality Regional Operations Section Mooresville Regional Office Division of Water Resources, NCDEQ Subject: Notice of Violation and Intent to Assess Civil Penalty Tracking Number: NOV-2023-LM-0045 Permit No. NCO071528 Lake Norman Woods WWTP Catawba County Mr. Pitner, Thank you for allowing the Lake Norman Woods HOA the opportunity to respond to this Notice of Violation dated July 7, 2023; received July 10, 2023. This response pertains to the (3) frequency violations for Total Residual Chlorine and Flow, (1) BOD daily maximum exceedance, (1) NH3N daily maximum exceedance, and (1) subsequent NH3N monthly average exceedance events that occurred during the May 2023 monitoring period. The BOD and NH3N exceedances were caused by various complications with plant infrastructure that have adversely affected the plant's operations at the time that these violations occurred. While no ammonia nitrogen daily maximum exceedances occurred, the overall average was enough to exceed the permitted limit. To mitigate elevated BOD levels, operators have been brushing down and agitating the bottom of the aeration basin to increase biological activity in the plant. Capital improvements to the wastewater treatment facility are currently in progress, with an anticipated completion time of 90 days maximum. Frequency Violations for Total Residual Chlorine (TRC) for the weeks ending 5/20/2023 and 5/27/2023; as well as for Flow for the week ending 5/27/2023, were due to a reporting error that has since been corrected through amendment of the eDMR. TRC samples during these weeks were collected on 5/17, 5/18, 5/24, and 5/26. Flow was collected on 5/23, 6/ 1, and 6/2. We believe that the Lake Norman Woods HOA and WWTP operational staff have responded to these issues to the best of our ability and in good faith. We are confident that upon completion of the reconstruction efforts that effluent quality will be greatly improved. It is always our goal to remain in compliance with regulations set forth by the North Carolina Division of Water Resources. As a small community association, it is very expensive for us to make such repairs. In the event of considering financial enforcement, we request that the Division take this factor into account when proceeding with enforcement. Sincerely, s Dale Norman Lake Norman Woods HOA CC: Todd Robinson, Envirolink, Inc. Josh Powers, Envirolink, Inc.