WQ0028693_NOVNOI2022LV0044_0035_RESP_20220131

P.O. Box 1325 Asheville, N.C. 28802
(828)-251-1900 (828)-251-1945

January 31, 2022

Mr. Landon Davidson
Regional Supervisor
NCDENR-Water Quality Section
2090 U.S. Hwy 70
Swannanoa, NC 28778

Re: NOV-2022-LV-0044 & NOV-2022-LV-0035/WQ0028693

Mr. Davidson,

This letter is in response to your 1-19-22 letter to Mountaintop Community Association
attached.

NOV-2022-LV-0044
Per your letter the 9-8-21 sample event exceeded the daily max for BOD 32.3 mg/L,
NH3N 33.2 mg/L and TSS 10.8 mg/L. The 9-22-21 sampling event exceeded the daily
max BOD 18.5 and NH3N 9.4 mg/L. These two events resulted in monthly average
violations for BOB 18.63, NH3N 10.53 mg/L and TSS 6.23 mg/L.

These results occurred after the Labor Day weekend when sewage flows reached the
highest levels in 2021. We continue to monitor dissolved oxygen and pH levels to reach
compliance. The 9-30-21 sampling event was complaint for all parameters with BOD
5.1 mg/L, NH3N <0.1 mg/L and TSS 2.6 mg/L, but all were not enough to reach a
compliant monthly average for the month.

NOV-2022-LV-0035
Per your letter the 10-7-21 sample event exceeded the daily max for NH3N 6.4 mg/L.
The 10-28-21 sampling event exceeded the daily max NH3N 8.8 mg/L. These two events
resulted in monthly average violations for NH3N 6.77 mg/L.

These results occurred during higher sewage flows. We continue to monitor dissolved
oxygen and pH levels to reach compliance. The 10-25-21 sampling event was lower
with a NH3N 5.1 mg/L, but not enough to reach a compliant monthly average for the
month.

Feel free to contact me anytime if I need to provide any further information or assistance.

Robert Barr

Robert Barr