NC0023884_Report_20180920 (13)

North Carolina Department of Environment and Natural Resources
D R
plvlslon of Water Resources
or
if Needed)
Permittee:
City
of Salisbury
Permit Number: NC 00023884
Facility Name:
City
of Salisbury
WWTP (Town Creek WWTT) County: Rowan
Incident Started
Incident Ended:
Level of Treatment:
Date: 9/16/2018 Time: 1736
Date: 9/17/2018 Time: 0225
X None _Primary Treatment _Secondary Treatment _Chlorination/Disinfection Only
Estimated Volume of Spill/Bypass: 392,309 gal (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: 100% Surface Water Name: Town 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? _Yes X No
Source of the Upset/Spill/Bypass (Location or Treatment Unit):
Influent manhole to headworks.
Cause or Reason for the Upset/Spill/Bypass:
Bypass was due to 6.1 inches of rainfall from Tropical Storm Florence in 72 hours. This resulted in hydraulic
overload of the WWTT. Note: The flow chart maxed out at 11.0 mgd (plant design is 5 mgd).
Describe the Repairs Made or Actions Taken:
We utilized all treatment processes at WWTT. Staff diverted flow to EQ basin and secondary clarifier # 2 to
help relieve hydraulic overload.
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):
The stream came out of its banks and flooded the WWTT headworks, operations building and maintenance
building. Once the stream's flow receded, the bypass ceased and the WWTT was able to contain the
elevated flow.
Action Taken or Proposed to be Taken to Prevent Occurrences:
N/A
Additional Comments About the Event:
24 -Hour Report Made To: Division of Water Resources X Emergency Management _
Contact Name: Wes Bell Date: 09/17/2018 Time: 11:45 am
Other Agencies Notified (Health Dept, etc):
Person Reporting Event: Sonia Basinger Phone Number: 704-216-7539
Did DWR Request an Additional Written Report? _Yes X No
If Yes, What Additional Information is Needed:
Spill/Bypass Reporting Form (August 2014)

North Carolina Department of Environment and Natural Resources
DW R
Division of Water Resources
Print or Type Use Attachments
Permittee: City of Salisbury Permit Number: NC 00023884
Facility Name: City of Salisbury WWTP (Town Creek WWTT) County: Rowan
Incident Started: Date: 9/16/2018 Time: 1736
Incident Ended
Level of Treatment:
Date: 9/17/2018 Time: 0340
_None X Primary Treatment _Secondary Treatment —Chlorination/Disinfection Only
Estimated Volume of Spill/Bypass: 191,899 oal (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: 100% Surface Water Name: Town 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? _Yes X No
Source of the Upset/Spill/Bypass (Location or Treatment Unit)
Manhole downstream of bar screen and grit removal treatment units.
Cause or Reason for the Upset/Spill/Bypass:
Bypass was due to 6.1 inches of rainfall from Tropical Storm Florence in 72 hours. This resulted in hydraulic
overload of the WWTT. Note: The flow chart maxed out at 11.0 mgd (plant design is 5 mgd).
Describe the Repairs Made or Actions Taken:
We utilized all treatment processes at WWTT. Staff diverted flow to EQ basin and secondary clarifier # 2 to
help relieve hydraulic overload.
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):
The stream came out of its banks and flooded the WWTT headworks, operations building and maintenance
building. Once the stream's flow receded, the bypass ceased and the WWTT was able to contain the
elevated flow.
Action Taken or Proposed to be Taken to Prevent Occurrences:
N/A
Additional Comments About the Event:
24 -Hour Report Made To: Division of Water Resources X Emergency Management
Contact Name: Wes Bell Date: 09/17/2018 Time: 11:45 am
Other Agencies Notified (Health Dept, etc):
Person Reporting Event: Sonia Basinger Phone Number: 704-216-7539
Did DWR Request an Additional Written Report? _Yes X No
If Yes, What Additional Information is Needed:
Spill/Bypass Reporting Form (August 2014)

North Carolina Department of Environment and Natural Resources
DW R
Division of Water Resources
1411
Permittee: City of Salisbury Permit Number: NC 00023884
Facility Name: City of Salisbury WWTP (Town Creek WWTT) County: Rowan
Incident Started:
Incident Ended
Level of Treatment:
Date: 9/17/2018
Date: 9/17/2018
Time: 0125
Time: 0715
_None _Primary Treatment _Secondary Treatment —X—Chlorination/Disinfection Only
Estimated Volume of Spill/Bypass: 120,400 gal (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: 100% Surface Water Name: Town 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? _Yes X No
Source of the Upset/Spill/Bypass (Location or Treatment Unit)
Chlorine Contact Chamber effluent.
Cause or Reason for the Upset/Spill/Bypass:
Bypass was due to 6.1 inches of rainfall from Tropical Storm Florence in 72 hours. This resulted in hydraulic
overload of the WWTT. Note: The flow chart maxed out at 11.0 mgd (plant design is 5 mgd).
Describe the Repairs Made or Actions Taken:
We utilized all treatment processes at WWTT. Staff diverted flow to EQ basin and secondary clarifier # 2 to
help relieve hydraulic overload.
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):
The stream came out of its banks and flooded the WWTT headworks, operations building and maintenance
building. Once the stream's flow receded, the bypass ceased and the WWTT was able to contain the
elevated flow.
Action Taken or Proposed to be Taken to Prevent Occurrences:
N/A
Additional Comments About the Event:
24 -Hour Report Made To: Division of Water Resources X Emergency Management
Contact Name: Wes Bell Date: 09/17/2018 Time: 11:45 am
Other Agencies Notified (Health Dept, etc):
Person Reporting Event: Sonia Basinger Phone Number: 704-216-7539
Did DWR Request an Additional Written Report? _Yes X No
If Yes, What Additional Information is Needed:
Spill/Bypass Reporting Form (August 2014)