NC0021156_Report_20220104 (3)

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: Miles Braswell Permit Number: NC 0021156
Facility Name: City of Mount Holly WWTP County: Gaston
Incident Started: Date: 1-4-22 Time: 1130
Incident Ended: Date: 1-4-22 Time: 1400
Level of Treatment:
X None _Primary Treatment _Secondary Treatment _Chlorination/Disinfection Only
Estimated Volume of Spill/Bypass: _40392 (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: _40392 Surface Water Name: Catawba River
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? Yes _X_No
Source of the Upset/Spill/Bypass (Location or Treatment Unit):
City Ditch Influent screen area
Cause or Reason for the Upset/Spill/Bypass:
Unexpected amount of rain that came through the area.
Describe the Repairs Made or Actions Taken:
No equipment repairs needed. The cause of the spill was the amount of water coming into the plant caused
by a large amount of rainfall in a short amount of time. The continued maintenance of the collection lines
would help with the I and I into the system, and help prevent surges of storm water in the future.
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):
Ran 2 pumps to keep up with incoming flow and after rain subsided pumps started pumping down the basin
and city ditch influent area which stopped the spill event. Cleaned the water of floating debris (there was
minimal) as it came through and cleaned the area that was effected by the spill. We applied lime to the
affected area.
Action Taken or Proposed to be Taken to Prevent Occurrences:
Collection lines need more remediation to prevent inflow and infiltration.
Additional Comments About the Event:
The staff did everything that was possible to prevent this but the amount of water in such a short time was to
much for the basin to handle and pumps to keep up with. The water that was coming into the plant was brown
and muddy which shows that there is an area in the city which is sending and large amount of stormwater
during rain events. We have started tracking the water to find the source of where the muddywater in coming
from. A press release and a public notice will be sent out asap.
24-Hour Report Made to: Division of Water Resources _X_ Emergency Management
Contact Name: Wes Bell Date: 1-4-22 Time: 1537
Other Agencies Notified (Health Dept, etc):
Person Reporting Event: _Doug Shoutd Phone Number
704-827-4261
Did DWR Request an Additional Written Report? _Yes _X No
If Yes, What Additional Information is Needed:
Spill/Bypass Reporting Form (August 2014)