NC0048861_technical correction_20080201

Michael F. Easley, Governor
William G. Ross, Jr., Secretary
North Carolina Department of Environment and Natural Resources
Coleen H. Sullins , Director
Division of Water Quality
February 1, 2008
Mayor William J. White, Jr.
Town of Creswell
P. O. Box 68
Creswell, NC 27928-0068
Subject: Correction of NPDES Permit NC0048861
Creswell Waste Water Treatment Plant
Washington County
Dear Mayor White:
Division personnel were contacted by Neal Place in regards to the change to the effluent pH Limit in
the issued renewal permit signed January 18, 2008. Reviewed of our records revealed that the pH should
have not been changed. The pH Limit stated in the draft is correct and is the same as the previous permit.
The pH Limit should have been unchanged in the issued renewal permit.
This corrected permit page changes the pH Limits to shall not be less than 6.0 or greater
than 9.0 standard units.
A narrative change was also made to Footnote 3 to remove unnecessary commentary. Accordingly, we
are sending you a single corrected page to insert into your active permit. Please replace the effected page and
dispose of the erroneous page. Mr. Place was given verbal approval to apply the correct pH Limits.
All other terms, conditions, and limits in the active permit are unaffected and remain as compliance
requirements. If you have any questions concerning this permit or the corrected page, please contact Ron
Berry at telephone number [phone], extension 531.
Sincerely,
4, Coleen H. Sullins
cc: Washington Regional Office/Surface Water Protection Section
Central Files
NPDES Unit
Division of Water Quality, Point Source Branch Telephone [phone]
1617 Mali Service Center, Raleigh, North Carolina 27699-1617 FAX [phone]
512 N. Salisbury Street, Raleigh, North Carolina 27604 On the Internet at http://h2o.enrstate.nc.us/
An Equal opportunity/Affirmative Action Employer
_One nhCarolina
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Permit NC0048861
A (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
During the period beginning on the effective date of this permit and lasting until expiration, the Permittee is
authorized to discharge from outfall 001. Such discharges shall be limited and monitored by the Permittee as
specified below:
EFFLUENT
CHARACTERISTICS
DISCHARGE LIMITATIONS,
MONITORING REQUIREMENTS
Monthly
Average
Weekly
Average ;
Daily
Maximum
Measurement
Frequency
Sample
Type
1 Sample Location
Flow 0.064 MGD
Continuous
Recording
Influent or Effluent
BOD, 5-Day, 20°C1 30.0 mg/L
45.0 mg/L
2/Month
Composite
Influent and Effluent
Total Suspended Solids 90.0 mg/L
(TSS)
135.0 mg/L
2/Month
Composite
Effluent
NH3 as N
Monthly
Composite
Effluent
Fecal Coliform 200 / 100 ml
(geometric mean)
400 / 100 ml
2/Month
Grab
Effluent
Total Residual Chlorine
(TRC)2
17 pg/L
2/Month
Grab
Effluent
Dissolved Oxygen (DO)3
Weekly
Grab
Effluent and Downstream4
Temperature °C
Weekly
Grab
Effluent and Downstream4
Total Phosphorus (TP)
Monitor and Report mg/L)
Quarterly
Composite
Effluent
Total Nitrogen (TN)
(NO2+NO3 + TKN)5
Total Kjeldahl Nitrogen (TKN)
NO2-N + NO3-N
Monitor and Report (mg/L)
Quarterly
Calculated
Effluent
Monitor and Report (mg/L)
Quarterly
Composite
Effluent
Monitor and Report (mg/L)
Quarterly
Composite
Effluent
pH6
2/Month
Grab
Effluent
NOTES:
1. The monthly average effluent BOD5 concentration shall not exceed 35% of the influent value (65%
removal).
2. Monitoring and limit are required only if chlorine and/or a chlorine derivative is used for disinfection.
3. The minimum measurement detection required is 1.0 mg/L.
4. Downstream = Spruills Bridge (NC1142).
5. For a given waste water sample , TN = NO2-N + NO3-N + TKN, where TN is the Total Nitrogen, TKN is
Total Kjeldahl Nitrogen, and NO2-N and NO3-N are Nitrate and Nitrite Nitrogen, respectively.
6. The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units.
There shall be no discharge of floating solids or visible foam in other than trace amounts.
All samples collected should be from a representative discharge event.