NC0068152_NOV-2020-LV-0040 Response_20200205

D R Y
January 31, 2019
R I D G E P R O P E R T I E S
RE: NOTICE OF VIOLATION & INTENTTO ASSESS CIVIL PENALTY
Tracking p: NOV-2020-LV-0040
Permit#: nc0068152
Eden Glen Mobile Village WWTP
Buncombe County
DearNCDEQ:
Water Quality Regional Operations
Asheville Reglanal Office
During the month of October Eden Glen experienced a permit violation for the exceedance of Ammonia.
It is believed that something was introduced to the waste water plant, from the mobile home park, that
caused a disruption in the biological process. This resulted in the ammonia not being able to be broken
down by the bacteria within the waste water treatment plant.
This issue has since been addressed by changing the return sludge flow and the wasting cycle used in the
plant operation. These actions will help slow down the flow of the water through the clarifier and lower
the sludge blanket within the clarifier. The bacteria now have the time to complete the nitrification
process with a lower sludge blanket and a slower flow through the clarifier. As a final precaution, a
liquid nitrifying bacteria is being added to help further break down the ammonia in the waste water
stream. The dissolved oxygen level within the aeration basin and the clarifier have stayed within range
of proper nitrification process controls. The latest monitoring results have showed a significant drop in
the ammonia levels.
We continue to strive to keep the plant running within the permit levels. The ammonia exceedance has
warranted great concern and it has taken some time to rectify the plant operation to be in compliance.
These issues have not been a problem in the past but we will continue to evolve the waste water
treatment plan to further improve the water quality.
Sincerely,
Dan Arnold
Member -Manager
Dry Ridge Properties, LLC
Ll•
0
191
C+8283370894 [e-mail] I Bernardsville, NC 28709