NC0071242_NOV Response_20180618

RECEIVED/NCDENR/DWR
JUN 18 2018
WOROS
MOORESVILLE REGIONAL OFFICE
Carolina Water Service
'� of North Carolina'"'
W. Cory Basinger, Regional Supervisor
Regional Office, Division of Water Resources
Water Quality Regional Operations Section
610 East Center Avenue Suite 310
Mooresville NC 28115
RE: Notice of Violation & Intent to Assess Civil Penalty
Tracking Number: NOV-2018-LV-0387
NPDES NC 0071242
Riverpointe WWTP
Mecklenburg County
Dear Mr. Basinger
We are in receipt of your letter dated June 4, 2018 and respond as follows:
After completing our analysis, CWSNC suspects the cause for the daily BOD and Fecal exceedances
that occurred on 1/13/2018 were related to the extreme cold weather that occurred in
January 2018. During our investigation CWSNC found that our blowers would reduce their production
by 50% when temperatures get below 15 degrees F. This is a built-in safety feature that the manufacturer
had installed on all their VFD's. We have installed our VFD's in a heated panel and all subsequent
samples including monthly averages were within NPDES permit limits.
Our staff at Carolina Water service, Inc. of NC are committed to act with integrity and protect the
environment. Please accept this letter and our stewardship as our commitment to protect our environment.
If you have any question or if I can provide any additional information. Please do not hesitate to contact
me at 704-319-0536
Sin ely
tie«
ck ]one
Area Manager
Cc: Tony Konsul
Cc: Bryce Mendenhall
• 4944 Parkway Plaza Blvd. Suite 375 • Charlotte, North Carolina 28217 • 800-525-7990