NC0023337_NOV-2020-LV-0392 Response_20200706

TOWN OF SCOTLAND NECK
P.O. Box 537
1310 MAIN STREET
SCOTLAND NECK, NC 27874
Eddie Braxton, Mayor
Town of Scotland Neck
PO Box 53
Scotland Neck, NC 27874
Vanessa E. Manuel
Assistant Regional Supervisor
Water Quality Regional Operations Section
Raleigh Regional Office
Division of Water Resources, NCDEQ
NC Dept of Environmental Quality
JUL 13 2020
Raleigh Regional Office
July 6, 2020
Dear Mrs. Manuel_
n, ° coo c2 3 3 3 7
1 am writing in response to the NOV letter (# NOV-2020-LV-0392 ) received by the Town
of Scotland Neck on May 9, 2020, In our previous response letter we addressed several
issues that we are dealing with concerning broken or missing equipment at the WWTP. In
addition, the plant was loaded down with solids in both the oxidation ditch, which had a
MLSS of 8000+, and the aerobic digester. We also had intermittent leaks in our disinfection
system that caused fecal coliform results to vary. In that letter we mapped out a plan of
action to correct these issues and achieve compliance.
We located and fixed all the leaks in the disinfection system by March 15, 2020 and
contracted with WaterGuard to refurbish our chemical pumps. We have been compliant
with our fecal limits since March 16, 2020. On March 23111 we had a new RAS pump and
controller installed. By April 101" Granville Farms began hauling sludge from the digester
and finished up later in the month with a total of 280,000 gallons being removed. We
immediately began to waste sludge back to the digester until we got our MLSS in the
oxidation ditch down to around 4000 MLSS. By the last week of April we were meeting our
BOD limits but not our NH3N limits. At this point we had Dwight Lancaster from NC Rural
Water come in to advise us on things we could do to help with the nitrification and
denitrification process. By the last week of May we had met all our permit parameter limits
and are still in full compliance as of the date of this letter.
We are continuing to replace and repair equipment at the WWTP as needed. We also
have future plans in place to address other challenges affecting the operation of the plant
during high flows.
Sincerely,
Eddie Brax on, Mayor
Town of Scotland Neck