NC0088366_Permit Modification_20091105

NCDE SIR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen H. Sullins
Governor Director
November 5, 2009
Mr. Rodney Tart
Harnett County Public Utilities
P. O. Box 1119
Lillington, North Carolina 27546
Subject: NPDES Permit Modification
Permit Number NCO088366
South Harnett County Regional WWTP
Harnett County
Dear Mr. Tart:
Dee Freeman
Secretary
The Division issued NPDES permit NCO088366 to Harnett County Public Utilities on December 1, 2006. The South Harnett
Regional W WTPjoined the Middle Cape Fear River Basin Association (MCFRBA) through the June 2009 amendment of the
Memorandum of Agreement (MOA) between the association and the Division of Water Quality (DWQ). Instream monitoring
requirements within the facility's individual NPDES permit are waived in exchange for the MCFRBA's monitoring of the watershed
as specified within the amended MOA. Should membership in the association be terminated, DWQ must be notified immediately and
the instream monitoring requirements in the facility's permit will be reinstated.
In accordance with the MOA, the Division is forwarding herewith a modification to the subject permit. Enclosed please find
the modified permit page. This page should be inserted into your permit and the old one discarded. This permit modification is issued
pursuant to the requirements of North Carolina General Statute 143-215.1 and the Memorandum of Agreement between North
Carolina and the U.S. Environmental Protection Agency dated October 15, 2007 (or as subsequently amended).
Please take notice that this permit is not transferable. This permit does not affect the legal requirement to obtain other
permits which may be required by the Division of Water Quality or permits required by the Division of Land Resources, Coastal Area
Management Act or any other Federal or Local government permit that may be required.
6400.
If you have any questions concerning this permit modification, please contact Karen Rust at telephone number (919) 807-
Sincerely,
l4 /
{O r Coleen H. Sullins
cc: Fayetteville Regional Office, Surface Water Protection Section
Central Files
NPDES Files
U. S. EPA Region 4
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
Location: 512 N. Salisbury St. Raleigh, North Carolina 27604
Phone: 91 M07.6300 \ Fax: [phone] \ Customer Service: 1-877.623.6748
Internet: www.ncwaterquality.org
NorthCarolina
Natmally
An Equal Opportunity \ Allirmalive Action Employer

Permit NCO088366
A. (1) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
During the period beginning on the effective date of the permit and lasting until expiration, the Permittee is
authorized to discharge treated wastewater from Outfall 001. Such discharges shall be limited and monitored by the
Permittee as specified below:
Effluent
Characteristics
Discharge Limitations `:
Monitoring Requirements
Monthly
Avera e .
Weekly
Avera a
Daily
Maximum
Measurement .
Fre uency" -
Sample ,
Type -
Sample t.ocation1
Flow
5.0 MGD
Continuous
Recording
Influent or Effluent
BOD, 5-day, 200C
(April 1— October 31)2
5.0 mg/L
7.5 mg/L
Daily
Composite
Influent and Effluent
BOD, 5-day, 200C
(November 1— March 31)2
10.0 mg/L
15.0 mg/L
Daily
Composite
Influent and Effluent
Total Suspended Solids2
30.0 mg/L
45.0 mg/L
Daily
Composite
Influent and Effluent
NHs as N
(April 1— October 31)
1.0 mg/L
3.0 mg/L
Daily
Composite
Effluent
NHs as N
(November 1— March 31)
2.0 mg/L
6.0 mg/L
Daily
Composite
Effluent
Dissolved Oxygen3
Daily
Grab
Effluent
Fecal Coliform
(geometric mean)
200/100ml
400/100ml
Daily
Grab
Effluent
Total Residual Chlorine4
28 Ng/L
Daily
Grab
Effluent
Temperature
Daily
Grab
Effluent
Total Phosphorus
Monthly
Composite
Effluent
TKN
Monthly
Composite
Effluent
NO2 + NO3
Monthly
Composite
Effluent
Total Nitrogen
Monthly
Composite
Effluent
Chronic Toxicity5
Quarterly
Composite
Effluent
pH6
Daily
Grab
Effluent
Temperature?
See Footnote 1
Grab
Upstream &
Downstream
Dissolved Oxygen?
See Footnote 1
Grab
Upstream &
Downstream
NOTES:
Upstream = at least 50 feet upstream of the discharge. Downstream = at least 500 feet from the discharge. Stream samples shall be
collected three times per week during the months of June, July, August, and September and weekly during the remainder of the year.
2. The monthly average effluent BOD and Total Suspended Solids concentrations shall not exceed 15% of the respective influent value
(85% removal).
3. The daily average dissolved oxygen concentration as measured in the effluent shall not be less than 5.0 mg/L.
4. Monitoring requirement and limit applies only if chlorine is added for disinfection.
5. Chronic Toxicity (Ceriodaphnia) limit at 14 % with testing in January, April, July, and October (see Special Condition A. (2)).
6. The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units.
7. Instream sampling (Upstream and Downstream monitoring) is waived as long as the Permittee retains membership in the Middle
Cape Fear River Basin Association (tvICFRBA), which is conducting a coordinated instream monitoring effort. If the Permittee's
membership in the MCFRBA is terminated, the Permittee must immediately notify the Division in writing, and the instream
monitoring requirements specified in this permit shall be reinstated immediately.
There shall be no discharge of floating solids or visible foam in other than trace amounts.

Beverly Eaves Perdue
Governor
June 23, 2009
go( VqA �s
D
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Coleen H. Sullins
Director
Rodney Tart
Director of Public Utilities
PO Box 1119
Lillington, NC 27546
RE: Amendment to the Middle Cape Fear River Basin Association Memorandum of Agreement
NPDES Permit Modification for Instream Monitoring
NCO088366 South Harnett Regional WWTP
Harnett County
Dear Mr. Tart:
sbV,eo/le,
Dee Freeman
Secretary
The South Harnett Regional WWTP joined the Middle Cape Fear River Basin Association (MCFRBA) through the June
2009 amendment of the Memorandum of Agreement (MOA) between the association and the Division of Water Quality
(DWQ). With this letter the DWQ confirms the waiving of instream monitoring requirements within the facility's
individual NPDES permit in exchange for the MCFRBA's monitoring of the watershed as specified within the amended
MOA. Influent and effluent monitoring requirements are not affected by this waiver. Should membership in the
association be terminated, DWQ must be notified immediately and the instream monitoring requirements in the facility's
permit will be reinstated.
All other terms and conditions in the original permit remain unchanged and in full effect. These modifications are issued
pursuant to the requirements of North Carolina General Statute 143-215.1 and the Memorandum of Agreement between
North Carolina and the US Environmental Protection Agency.
If you have any questions regarding this letter or another coalition matter, please contact Jennie Atkins at [phone]
or [e-mail].
Sincerely,
Coleen H. Sullins
f, Director, Division of Water Quality
cc: Fayetteville Regional Office, Surface Water Protection NPDES Eastern Unit
Jennie Atkins, Environmental Sciences Section Central Files
1617 Mail Service Center, Raleigh, North Carolina 27699-1617 NofthCarolina
512 North Salisbury Street, Raleigh, North Carolina 27604 Naturally
Phone: [phone] FAX: [phone] Customer Service:1-877-623-6748