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HomeMy WebLinkAboutWQ0041136_NOVNOI2021LV0712_RESP_20211005 P.O. Box 1325 Asheville, N.C. 28802 (828)-251-1900 (828)-251-1945 October 5, 2021 Mr. Landon Davidson Regional Supervisor NCDENR-Water Quality Section 2090 U.S. Hwy 70 Swannanoa, NC 28778 Re: NOV-2021-LV-0712/WQ0041136 Mr. Davidson, This letter is in response to your 9-29-21 letter to Cervini Farms North Carolina, Inc. attached. The system has had a hard time meeting the low ammonia limits and BOD limits as well. With the fixed media system, we are limited to the adjustments we can make to enhance the performance to the effluent. We have reviewed the system with the equipment supplier and design engineer and made adjustments to pod run times. We also tried to introduce nitrifier bacteria which only seemed to raise the BOD limits. We have reached out to all parties for assistance, so please let us know if you have any suggestions. The 1 mg/L ammonia limit will be problematic from what we have seen. Feel free to contact me anytime if I need to provide any further information or assistance. Robert Barr Robert Barr