NC0025402_Annual Report_20110101

ANNUAL PERFORMANCE REPORT
For the Calendar Year 2010
prepared: January 2011
TOWN OF ENFIELD
WASTEWATER TREATMENT FACILITY
I.General Information
Facility/System Name:Town of Enfield Wastewater Treatment Plant
Responsible Entity:Town of Enfield
Person in Charge/Contact:
Description of Collection System or Treatment Process:
II.Compliance Performance
The Town of Enfield Wastewater Treatment Plant is a 1.0 MGD design capacity
facility. The facility treats a combination of domestic, commercial, and industrial
wastewaters. The current treatment scheme includes a mechanical bar screen, grit
removal system, activated sludge and secondary clarification. The treated effluent
is disinfected by chlorination followed by dechlorination through the use of Sulfur
Dioxide. Sludge stabilization is accomplished by an aerobic digester and sludge
thickening/holding tank. Stabilized sludge is currently land applied in liquid form on
permitted sites.
Bobby Davis________
Public Works Director
105 Railroad Street
Enfield, NC 27823
[phone]
The North Carolina Department of Environment and Natural Resources
(NCDENR) regulates the Town of Enfield effluent discharge under the National
Pollutant Discharge Elimination System (NPDES). The NCDENR issued to the
Town a NPDES Permit, which includes water quality limits and sampling and
monitoring requirements. The NPDES Permit requires the Town to test more
than 13 different constituents in the treated water. The monitoring frequency for
these constituents are set at various intervals such as continuous, daily, weekly,
monthly, and quarterly. During the reporting period, the Town conducted 2,342
tests of the treated water before it was discharged to the creek. The WWTP
achieved a compliance level of 99.83% with the NPDES Permit requirements.
Following is a summary of the testing for the parameters, which are, assigned
Water Quality standards by the NPDES Permit. Please note the summary does
not include parameters, which incorporates a monitoring requirement only, nor
does it include daily process control testing.
2010 Annual Performance Report
for the
Town of Enfield
Wastewater Treatment Facility
Constituent
‘Testing is not required on holidays or during inclement weather.
Following is a summary of permit violations, which occurred during the year:
June 2010
August 2010
In addition to the required testing, the Town conducted over 1,196 in-house test
to ensure the proper operation of the wastewater treatment plant.
Flow _______________________
Biochemical Oxygen Demand (BOD)
Total Suspended Solids (TSS)_____
Ammonia_____________________
Fecal Coliform_________________
Chlorine______________________
Total Nitrogen__________________
Total Phosphorus_______________
Toxicity
Number of Test
Required
Continuous
312__________
312__________
52___________
156__________
156__________
12___________
12___________
4
Number of Test
Conducted*
Continuous_____
313___________
313___________
106___________
156 ___________
157 ___________
38____________
38____________
4
The weekly average limit for Ammonia-Nitrogen was exceeded during the week
of June 3, 2010, as well as the monthly average limit. The weekly average limit
for BOD was exceeded during the week of June 7, 2010.
The weekly average limit for Ammonia-Nitrogen was exceeded during the weeks
of August 16, 23, and 30, 2010. The monthly average limit for Ammonia-Nitrogen
was also exceeded.
CertificationIII.
3131 , 2011.day of Signed this
Town Administrator
(Signature)
Bobby Davis
(Name)
I have personally examined and am familiar with the information submitted in this
document and attachments. Based upon my inquiry of those individuals
immediately responsible for obtaining the information reported herein, I believe
that the submitted information is true, accurate and complete. I am aware that
there are significant penalties for submitting false information.