NC0020354_5-Day Bypass Report Incident# 202300636_20230412

North Carolina Department of Environment and Natural Resources
DWR
Division of Water Resources
WWTP Upset , Spill, or Bypass 5-Day Reporting Form
(Please Print or Type Use Attachments if Needed)
Permittee: Town of Pittsboro Permit Number: NC0020354
Facility Name: Pittsboro WWTP County: Chatham
Incident Started: Date: 4/8/23 -Time: 7:00pm
Incident Ended: Date: 4/11/23_ Time: 1:00pm
Level of Treatment:
_None_Primary Treatment_X_Secondary Treatment_X_ UV/ Disinfection
Estimated Volume of Spill/Bypass: _3,022,898 (must be given even if it is a rough estimate)
Did the Spill/Bypass reach the Surface Waters? _X_Yes No
If yes, please list the following:
Volume Reaching Surface Waters: _3,022,898_ Surface Water Name: Roberson Creek_
Did the Spill/Bypass result in a Fish Kill? Yes_X_No
Was WWTP compliant with permit requirements? _X_Yes No
Were samples taken during event? _X_Yes No
Source of the Upset/Spill/Bypass (Location or Treatment Unit):
Bypass of the sand filters only.
Cause or Reason for the Upset/Spill/Bypass:
High flow coming in due to rain. We received_2.5 inches of rain leading up to the bypass on Saturday
evening.
Describe the Repairs Made or Actions Taken:
Actions taken were to manage flow to retain solids, the bypassing of the sand filters
to prevent damage to the filters and washout of the filter media. The filters have limited flow capacity.
All banks of U.V. disinfection were ran at 100% capacity on all banks during the entirety of the event.
Spill/Bypass Reporting Form (August 2014)

North Carolina Department of Environment and Natural Resources
Spill/Bypass Reporting Form (August 2014)

WWTP Upset , Spill, or Bypass 5-Day Reporting Form
Page 2
Action Taken to Contain Spill, Clean Up and Remediate the Site (if applicable):
Action Taken or Proposed to be Taken to Prevent Occurrences:
More aggressive flow management, future I and I studies.
Additional Comments About the Event:
24-Hour Report Made To: Division of Water Resources Emergency Management_X_
Contact Name: Jerry (@_ EM-43 Date: 4/08/2023 Time: 09:07pm
Reference number 20230408\15 Said to call in to Raleigh Regional on Monday 04/10/2023.
Raleigh Regional call in:
Contact Name: Zack Thomas Date: 4/10/2023 Time: 10:35am
Incident# 202300636
Other Agencies Notified (Health Dept, etc): N/A X
Person Reporting Event: _Jamie McLaurin Phone Number: _919-200-8927
Did DWR Request an Additional Written Report? _Yes_X_No
If Yes, What Additional Information is Needed:
Spill/Bypass Reporting Form (August 2014)