NC0024333_Email_20191223

�OF W ATERQ Form WWTP-BYPASS/UPSET
�O G Treatment Plant (WWTP) Bypass/Upset Reporting Form 5-Day Report
o �
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: 12/23/2019
Incident Ended: Date: 12/24/2019
Permit Number: NCO024333
County: Union
Time: 8:59 AM
Time: 5:38 AM
Weather Conditions during Bypass/Upset event: Prolonged heavy rain event 2.8" from low pressure
front (0.50" rain on 12/23/19 and 2.30" rain on 12/24/19).
Level of Treatment:
None_X Primary Treatment X Secondary Treatment X Chlorination/Disinfection Only
Estimated Volume of Spill/Bypass: (Est. 4,778,750 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. 4,778,750 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? _Yes _X—No
Source of the Upset/Spill/Bypass (Location or Treatment Unit): Filter bypass valve
Cause or reason for the Upset/Spill/Bypass: Prolonged heavy rain event 2.8" from low pressure front
(0.50" rain on 12/23/19 and 2.30" rain on 12/24/19).

Form WWTP-BYPASS/UPSET
Page 2
Describe the repairs made or actions taken: Once the Influent flow started back down, started washing
filters and after some of the filters were washed, the valve was closed.
Action taken to contain, lessen the impact, clean up, and remediate the site (if applicable) due to the
bypass: N/A
Action taken or proposed to be taken to prevent occurrences: The valve is to only be used in extreme
circumstances to prevent a possible overflow from the filters.
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 Sheller Date: 12/23/19 Time: Approx. 9:21 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
Signature: )
Kyle Ketchum
Title: WWTP Superintendent
Date: 12/24/19
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).