NC0024333_5-Day Bypass Rpt._20230130

�OF WA7-F� Form WWTP-BYPASS/UPSET
�O G Treatment Plant (WWTP) Bypass/Upset Reporting Form 5-Day Report
This form shall be submitted to the appropriate DWQ Regional Office within five days of the first knowledge
of the unanticipated bypass or upset.
Permittee: City of Monroe
Facility Name: City of Monroe, WWTP
Incident Started: Date: 1/28/2024
Incident Ended: Date: 1/28/2024
Permit Number: NG0024333
County: Union
Time: 12:05 AM
Time: 3:04PM
Weather Conditions during Bypass/Upset event: Rain event 1.7 inches of rain on 1/27124.
Level of Treatment:
None X Primary Treatment X Secondary Treatment X Chlorination/Disinfection Only
Estimated Volume of Spill/Bypass. (Est. 2,724,500 gallons) (must be given even if it is a rough estimate)
Describe how the volume was determined: Based on bypass valve position and effluent flow meter_
Did the Spill/Bypass reach the Surface Waters? X Yes No
If yes, please list the following:
Volume Reaching Surface Waters: (Est. 2,724,500 gallons Surface Water Name: Richardson
Creek
Did the Spill/Bypass result in a Fish Kill? Yes X No
Was WWTP compliant with permit requirements? Yes X No:
Were samples taken during event? _X—Yes X No (Composite samplers were started as normal 10:05
AM 1/28/24
Source of the Upset/Spill/Bypass Location or Treatment Unit): Filter bypass valve
Cause or reason for the Upset/Spill/Bypass: Rain event 1.7 inches of rain on 1/27/24.

Form WWTP-BYPASS/UPSET
Page 2
Describe the repairs made or actions taken: Once the Influent flow started back down and were able to
start running EQ return pump, some of the filters were washed and the valve was closed.
Action taken to contain lessen the impact, clean up, and remediate the site if applicable) due to the
bypass: NIA
Action taken or proposed to be taken to prevent occurrences: Continue our I&I Program. We are currents
under construction for an additional flow equalization basin.
Were adequate equipment and resources available to fix the roblem? ® Yes ❑ No
Additional comments about the event:

24-Hour Report Made To. Division of Water Quality
Form WWTP-BYPASSIUPSET
Page 3
Emergency Management X—
Contact Name: Mike Bennett Date: 1/28/2024 Time: Approx. 2:04 AM
Other Agencies Notified (Health Dept, etc):
Person Reporting Event: Kyle Ketchum Phone Number: [phone]
Did DWQ request an additional written report? X Yes No
If Yes, what additional information is needed:
As a representative for the responsible party, I certify that the information contained in this
report is true and accurate to the best of my knowledge.
Person Submitting Claim: Kyle Ketchum
Signature: 1
Title: WWTP Superintendent
Date: 1 /29/2024
Telephone Number: 704-282-4612 704-226-6093 Cell
Any additional information to be submitted should be sent to the appropriate Division Regional
Office within five days of first knowledge of the Bypass with reference to the incident number
(the incident number is only generated when electronic entry of this form is completed, if used).