NC0020338_Corrective Action Plan_20210303

Corrective Action Plan
Total Copper RECEIVED
Yadkinville WWTP
NPDES Permit NC0020338 MAR 3 2021
NCDEQ/DWR/NPDES
The Yadkinville WWTP was issued NPDES Permit with an effective date of March 1, 2020.
The permit contains effluent monitoring and limitations for Total Copper. This limit is new and
is based on the potential of the WWTP effluent to exceed water quality standards for copper.
— The facility will take a systematic approach to achieving compliance along with a Vv'ER
(Water Effects Ratio)to possibly raise the effluent limit.
— Identification and elimination of potential sources of copper.
— Evaluate and implement operational changes if needed.
Schedule of Compliance
03 01-2021 —0. 01 3 -2022
• Testing for Total Copper
o Work with known copper contributors(SIU's) in an effort to reduce copper
loading to the POTW.
o Research and Identify other possible sources of copper to the POTW.
o Evaluation of sampling locations within the collection system and sampling
techniques.
03-01-2022 —03-01-2023
o Identify and compile sample data from uncontrollable sources and other
possible copper contributors in an effort to reduce copper loading to the
POTW.
o Continue researching and Identifying other possible sources of copper to
the POTW.

03-01-2023 —03-01-2024
o Continue to work with the SIU's and newly found copper contributors in an
effort to reduce copper loading to the POTW.
02-28-
2025
o Achieve compliance with total copper effluent limit.
Reports
■ The Town of Yadkinville WWTP will submit reports to the Winston-Salem
Regional Office and the NC DWR NPDES Complex Permitting Unit, on a yearly basis, a
summary of the actions that have been taken in accordance with this Corrective Action
Plan.
o NCDEQ/Division of Water Resources
NPDES Complex Permitting
1617 Mail Service Center
Raleigh,NC 27699-1617
o NCDEQ/Division of Water Resources
Winston-Salem Regional Office
450 Hanes Mill Road, Suite 300
Winston-Salem,NC 27105
• Reports are due:
a. 03-01-2021 —Corrective Action Plan
b. 03-01-2022—Summary of actions taken
c. 03 -01-2023 - Summary of actions taken
d. 03-01-2024— Summary of actions taken