NC0024333_Bypass_20231218

C� WATfR Form WWTP-BYPASS/UPSET
`p Q� Treatment Plant (WWTP) Bypass/Upset Reporting Form 5-Day Report
'his 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 Permit Number: NC0024333
Facility Name: City of Monroe, WWTP County: Union
Incident Started: Date: 12/17/2023 Time: 4:12 PM
Incident Ended: Date: 12/18/2023 Time: 3:46 AM
Weather Conditions during Bypass/Upset event: Rain event 2.25 inches of rain on 12/17/23.
Level of Treatment:
_None X Primary Treatment X Secondary Treatment X Chlorination/Disinfection Only
Estimated Volume of Spill/Bypass: (Est. 2,373,750 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. 2,373,750 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 _No (Composite samplers were started as normal on
12/17/23.
Source of the Upset/Spill/Bypass Location or Treatment Unit): Filter bypass valve
Cause or reason for the Upset/Spill/Bypass: Rain event 2.25 inches of rain on 12/17/23.

Form WWTP-BYPASSIUPSET
Page 2
Describe the repairs made or actions taken: Once the Influent flow started back down 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 current)
under construction for an additional flow equalization basin.
Were adequate equipment and resources_ available to fix the problem? ® Yes ❑ No
Additional comments about the event:

Form WWTP-BYPASS/UPSET
Page 3
24-Hour Report Made To: Division of Water Quality X Emergency Management
Contact Name: Roberto Scheller Date: 12/18/2023 Time: Approx. 8:22 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: &410--
Title: WWTP Superintendent
Date: 12/18/2023
Telephone Number: 704-282-4612
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).