NC0072877_NPDES Draft Permit_20120613

AVA,
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Charles, Wakild, P.E. Dee Freeman
Governor Director Secretary
May 9, 2012
Mr. Steve Ward
Director of Harnett County Public Utilities
P.O. Box 1119
Lillington, North Carolina 27546
Subject: Draft Renewal of
Permit No. NC0021636
North Harnett County Regional WWTP
Harnett County
Class IV Facility
Dear Mr. Ward:
Enclosed with this letter is a copy of the draft renewal permit for your facility. Please review the draft
carefully to understand the conditions, measurement units, and requirements.
This draft permit has the following changes from your current permit:
• Supplement to Permit Cover Sheet: Part 1 the facility description has been updated to match the current
5.6 MGD plant.
o Part 2 regarding the AtC for the new plant has been removed, as the new plant is built and in
operation.
• Effluent Limitations and Monitoring Requirements page A.(1.) for 0.75 MGD has been deleted.
• Old page A.(2.) has been renumbered as A.(1.).
• On the new A.(1.), TRC monitoring, limit and footnote have been removed as UV light is now used
instead of chlorine for disinfection.
• Acute Toxicity testing at 90% has been deleted as it is no longer applicable.
• The Annual Pollutant Analysis has been changed to 3 tests during the permit cycle during specified
years.
• Old Special Condition A.(3.) regarding Supplemental Nutrient Monitoring Requirements has been
deleted. Nutrient monitoring remains unchanged in the permit (3/ Week summer, Monthly in winter) for
both TN and TP.
• Old Special Condition A.(4.) regarding acutetoxicity pass/ fail permit limit has been deleted.
• Old Special Condition A.(9) Effluent Pollutant Scan has been replaced with our current language
requiring three tests instead of annual testing in keeping with EPA requirements.
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
Location: 512 N. Salisbury St. Raleigh, North Carolina 27604
Phone: [phone] \ FAX: [phone] Customer Service: 1-877-623-6748
Internet: www.ncwaterquality.org
An Equal Opportunity 1 Affirmative Action Employer
NorthCarolina
Naturally

• Quarterly monitoring for mercury will remain in the LTMP and not added to the permit, but EPA
Method 1631 E is required; there will be no limit at this time.
Concurrent with this notification, the Division is publishing a notice in the newspaper having circulation in
the general Harnett County area, soliciting public comments on this permit draft. Please provide any comments
you may have regarding this draft to DENR — DWQ, NPDES Program no later than 30 days after receiving this
draft permit.
Following the 30-day public comment period, the Division will review all pertinent comments and take
appropriate action prior to issuing a final permit. If you have questions concerning the draft for your facility,
please call me at [phone] or by email at [e-mail].
If no adverse comments are received from the public or from you, this permit will likely be issued in June
2012, with an effective date of August 1, 2012, expiring on April 30, 2016.
Attachments
CC:
Sincerely,
Jim McKay
Complex NPDES Permitting
Fayetteville Regional Office/ Attn: Belinda Hinson - via email
Fayetteville Regional Office/ Attn: Debra Benoy.with application and fact sheet
Central Files
NPDES File
Aquatic Toxicology Attn: Susan Meadows - via. email
Monitoring Coalition Program - Steve Kroeger & Carrie Ruhlman - via email
TACU ; Steve Reid - via. email
EPA Region IV with application and Fact Sheet
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
Location: 512 N. Salisbury St. Raleigh, North Carolina 27604
Phone: [phone] FAX: [phone] \ Customer Service: 1-877-623-6748
Internet: www.ncwaterquality.org
An Equal Opportunity \ Affirmative Action Employer
NorthCarolina
Natural/

Permit NC0021636
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF ENVIRONMENTAL MANAGEMENT
DRAFT PERMIT
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance with the provisions of North Carolina General Statute 143-215.1,other lawful standards
and regulations promulgated and adopted by the North Carolina Environmental Management
Commission, and the Federal Water Pollution Control Act, as amended,
Harnett County Public Utilities
is hereby authorized to discharge wastewater from a facility located at
North Harnett Regional WWTP
607 Edwards Drive
Lillington
Harnett County
to receiving waters designated as the Cape Fear River in the Cape Fear River Basin
in accordance with effluent limitations, monitoring requirements, and other conditions set forth
in Parts I, II, III and IV hereof.
This permit shall become effective.
This permit and authorization to discharge shall expire at midnight on July 31, 2016.
Signed this day.
DRAFT
Charles Wakild, P.E., Director
Division of Water Quality
By Authority of the Environmental Management Commission

Permit NC0021636
SUPPLEMENT TO PERMIT COVER SHEET
All previous NPDES Permits issued to this facility, whether for operation or discharge are hereby
revoked. As of this permit issuance, any previously issued permit bearing this number is no
longer effective. Therefore, the exclusive authority to operate and discharge from this facility
arises under the permit conditions, requirements, terms, and provisions included herein.
Harnett County Public Utilities is hereby authorized to:
1. Continue to operate an existing 5.6 MGD wastewater treatment plant consisting of the
following:
• Influent pump station
• Aerated flow equalization
• Mechanical and manual bar screens
• Grit classifier with auger
• Instrumented influent and effluent flow measurement
• Dual oxidation ditches
• Three centrifugal blowers
• Two 434,000 gallon non -aerated tanks with submersible mixers
• Dual clarifiers
• Four traveling bridge tertiary filters
• Ultraviolet disinfection facility
• Cascade post aeration
• Backup generator facility
• Septage receiving station
• Lime storage facility
• Sludge lagoon
This facility is located at Harnett County Public Utilities North Harnett Regional Wastewater
Treatment Plant, Edwards Drive, Lillington, Harnett County.
2. Discharge from said treatment works at the location specified on the attached map into the
Cape Fear River, classified WS-IV waters in the Cape Fear River Basin.

Permit NC0021636
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NPDES NC 0021636
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Permit NC0021636
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 treated wastewater from outfall 001 subject to the following effluent limitations and monitoring requirements.
EFFLUENT
CHARACTERISTICS
LIMITS
MONITORING REQUIREMENTS
Monthly -
Average
Weekly
Average '
Daily
Maximum
Measurement
Frequency
Sample Type
Sample Location
Flow
5.6 MGD
Continuous
Recording
Influent or Effluent
BOD, 5-day, 20°C
2
(April 1 - October 31)
5.0 mg/L
7.5 mg/L
Daily
Composite
Influent & Effluent
BOD, 5-day, 20°C
2
(November 1 - March 31)
10.0 mg/L
15.0 mg/L
Daily
Composite
Influent & Effluent
2
Total Suspended Solids
30.0 mDailyComposite
�
45.0 mg/L
P
Influent & Effluent
NH3 as N
(April 1 — October 31)
1.0 mg/L
3.0 mg/1
Daily
Composite
Effluent
NH3 as N
(November 1 — March 31)
2.0 mg/L
6.0 mg/1
Daily
Composite
Effluent
3
Dissolved Oxygen
Daily
Grab
Effluent
4
Dissolved Oxygen
•
See Footnote 4
Grab
Upstream & Downstream
Temperature, °C
Daily
Grab
Effluent
4
Temperature, °C
See Footnote 4
Grab
Upstream & Downstream
pH
6.0 — 9.0 standard units
Daily
Grab
Effluent
Total Nitrogen 5
(April 1 - October 31)
Monitor & Report (mg/L)
Monitor & Report (Ib/mo)
59,968 lb/yr (summer mass loading)
3/Week
Monthly
Annually
Composite
Calculated
Calculated
Effluent
Total Nitrogen
(November 1 - March 31)
Monitor & Report
Monthly
Composite
Effluent
Total Phosphorus 6
(April 1 - October 31)
Monitor & Report (Ib/mo)
Monitor & Report (lb/mo)
19,989 lb/yr (summer mass loading)
3/Week
Monthly
Annually
Composite
Calculated
Calculated
Effluent
Total Phosphorus
(November 1 - March 31)
Monitor & Report
Monthly
Composite
Effluent
Fecal Coliform
(geometric mean)
200 / 100 ml
400 / 100 ml
3/Week
Grab
Effluent
Chronic Toxicity
Quarterly
Composite
Effluent
Effluent Pollutant Scan 8
Monitor and Report
Footnote 8
Footnote 8
Effluent
Notes:
1.
Upstream = at the US Highway 401 Bridge. Downstream = 1.3 miles downstream at the boat ramp. Instream monitoring is
provisionally waived in light of the permittee's participation in the Middle Cape Fear River Basin Association. Instream
monitoring will be immediately reinstated should the permittee end its participation in the Association.
2. The monthly average effluent BODS and Total Suspended Solids concentrations shall not exceed 15% of the respective
influent value (85% removal).
3. The daily average dissolved oxygen effluent concentration shall not be less than 5.0 mg/L.
4. Monitoring is to be conducted three times per week during June, July, August, and September, and once per week
during the rest of the year.
5. TN = TKN + NO3-N + NO2-N, where TN is Total Nitrogen, TKN is Total Kjeldahl Nitrogen, and NO3-N and NO2-N
are Nitrate and Nitrite Nitrogen, respectively. See A.(3)
6. Total Phosphorus, see A.(4)
7. Chronic Toxicity (Ceriodaphnia) P/F @ 1.6%; January, April, July, and October. See Special Condition A. (2.)
8. The permittee shall perform three Effluent Pollutant Scans during the term of this permit [see A. (6)].
There shall be no discharge of floating solids or visible foam in other than trace amounts.

Permit NC0021636
A. (2.) CHRONIC TOXICITY PERMIT LIMIT (QUARTERLY)
The effluent discharge shall at no time exhibit observable inhibition of reproduction or significant mortality to
Ceriodaphnia dubia at an effluent concentration of 1.6 %.
The permit holder shall perform at a minimum, quarterly monitoring using test procedures outlined in the "North
Carolina Ceriodaphnia Chronic Effluent Bioassay Procedure," Revised February 1998, or subsequent versions or
"North Carolina Phase II Chronic Whole Effluent Toxicity Test Procedure" (Revised -February 1998) or subsequent
versions. The tests will be performed during the months of January, April, July and October. Effluent sampling
for this testing shall be performed at the NPDES permitted final effluent discharge below all treatment processes.
If the test procedure performed as the first test of any single quarter results in a failure or ChV below the
permit limit, then multiple -concentration testing shall be performed at a minimum, in each of the two
following months as described in "North Carolina Phase II Chronic Whole Effluent Toxicity Test Procedure"
(Revised -February 1998) or subsequent versions.
The chronic value for multiple concentration tests will be determined using the geometric mean of the highest
concentration having no detectable impairment of reproduction or survival and the lowest concentration that does
have a detectable impairment of reproduction or survival. The definition of "detectable impairment," collection
methods, exposure regimes, and further statistical methods are specified in the "North Carolina Phase II Chronic
Whole Effluent Toxicity Test Procedure" (Revised -February 1998) or.subsequent versions.
All toxicity testing results required as part of this permit condition will be entered on the Effluent Discharge
Monitoring Form (MR-1) for the months in which tests were performed, using the parameter code TGP3B for the
pass/fail results and THP3B for the Chronic Value. Additionally, DWQ Form AT-3 (original) is to be sent to the
following address:
Attention: North Carolina Division of Water Quality
Environmental Sciences Section
1621 Mail Service Center
Raleigh, North Carolina 27699-1621
Completed Aquatic Toxicity Test Forms shall be filed with the Environmental Sciences Section no later than 30 days
after the end of the reporting period for which the report is made.
Test data shall be complete, accurate, include all supporting chemical/physical measurements and all
concentration/response data, and be certified by laboratory supervisor and ORC or approved designate signature.
Total residual chlorine of the effluent toxicity sample must be measured and reported if chlorine is employed for
disinfection of the waste stream.
Should there be no discharge of flow from the facility during a month in which toxicity monitoring is required, the
permittee will complete the information located at the top of the aquatic toxicity (AT) test form indicating the facility
name, permit number, pipe number, county, and the month/year of the report with the notation of "No Flow" in the
comment area of the.form. The report shall be submitted to the Environmental Sciences Section at the address cited
above.
Should the permittee fail to monitor during a month in which toxicity monitoring is required, monitoring will be
required during the following month.
Should any test data from this monitoring requirement or tests performed by the North Carolina Division of Water
Quality indicate potential impacts to the receiving stream, this permit may be re -opened and modified to include
alternate monitoring requirements or limits.
NOTE:. Failure to achieve test conditions as specified in the cited document, such as minimum control organism
survival, minimum control organism reproduction, and appropriate environmental controls, shall constitute an invalid
test and will require immediate follow-up testing to be completed no later than the last day of the month following
the month of the initial monitoring.

Permit NC0021636
A. (3.) TOTAL NITROGEN MONITORING/LIMIT
The Permittee shall calculate the summer mass loading of total nitrogen as the sum of monthly
loadings for April through October, according to the following equations:
Monthly Mass Loading (lb/month) = TN x Q x 8.34 where:
TN = The average total nitrogen concentration (mg/L) of the
composite samples collected during the month
Q = The total wastewater flow discharged during the month
(MG/mo)
8.34 = Conversion factor, from (mg/L x MG) to pounds
Summer Mass Loading (lb/yr) = Sum of (Monthly Mass Loadings) for the summer months
The Permittee shall report the total nitrogen concentrations for each sample and the monthly
mass loading in the appropriate self -monitoring report and the summer mass loading of total
nitrogen in the October self -monitoring report for the year.
A. (4.) TOTAL PHOSPHORUS MONITORING/LIMIT
The Permittee shall calculate the summer mass loading of total phosphorus as the sum of
monthly loadings for April through October, according to the following equations:
Monthly Mass Loading (lb/month) = TP x Q x 8.34 where:
TP = The average total phosphorus concentration (mg/L) of the
composite samples collected during the month
Q = The total wastewater flow discharged during the month
(MG/mo)
8.34 = Conversion factor, from (mg/L x MG) to pounds
Summer Mass Loading (lb/yr) = Sum of (Monthly Mass Loadings) for the summer months
The Permittee shall report the total phosphorus concentration for each sample and the monthly
mass loading in the appropriate self -monitoring report and the summer mass loading of total
phosphorus in the October self -monitoring report for the year.
A. (5.) PERMIT RE -OPENER: SUPPLEMENTARY MONITORING FOR TOTAL
NITROGEN AND PHOSPHORUS
The Division may, upon written notification to the permittee, require additional effluent
monitoring that it deems necessary to support its water quality protection and restoration efforts
in the receiving stream.

Permit NC0021636
A. (6) EFFLUENT POLLUTANT SCAN
The Permittee shall perform a total of three (3) Effluent Pollutant Scans for all parameters listed below.
One scan must be performed in each of the following years: 2013, 2014, and 2015. Analytical methods
shall be in accordance with 40 CFR Part 136 and shall be sufficiently sensitive to determine whether
parameters are present in concentrations greater than applicable standards and criteria. Samples should
be collected with one quarterly toxicity test each year, and must represent seasonal variation [i.e., do not
sample in the same quarter every year]. Unless otherwise indicated, metals shall be analyzed as "total
recoverable."
Ammonia (as N)
Chlorine (total residual, TRC)
Dissolved oxygen
Nitrate/Nitrite
Kjeldahl nitrogen
Oil and grease
Phosphorus
Total dissolved solids
Hardness
Antimony
Arsenic
Beryllium
Cadmium
Chromium
Copper
Lead
Mercury (EPA Method 1631E)
Nickel
Selenium
Silver
Thallium
Zinc
Cyanide
Total phenolic compounds
Volatile organic compounds:
Acrolein •
Acrylonitrile
Benzene
Bromoform
Carbon tetrachloride
Chlorobenzene
Chlorodibromomethane
Chloroethane
2-chloroethylvinyl ether
Chloroform
Dichlorobromomethane
1,1-dichloroethane
1,2-dichloroethane
Trans-1,2-dichloroethylene
1,1-dichloroethylene
1,2-dichloropropane
1,3-dichloropropylene
Ethylbenzene
Methyl bromide
Methyl chloride
Methylene chloride
1,1,2,2-tetrachloroethane
Tetrachloroethylene
Toluene
1,1,1-trichloroethane
1,1,2-trichloroethane
Trichloroethylene
Vinyl chloride
Acid -extractable compounds:
P-chloro-m-cresol
2-chlorophenol
2,4-dichlorophenol
2,4-dimethylphenol
4,6-dinitro-o-cresol
2,4-dinitrophenol
2-nitrophenol
4-nitrophenol
Pentachlorophenol
Phenol
2,4,6-trichlorophenol
Base -neutral compounds:
Acenaphthene
Acenaphthylene
Anthracene
Benzidine
Benzo(a)anthracene
Benzo(a)pyrene
3,4 benzofluoranthene
Benzo(ghi)perylene
Benzo(k)fluoranthene
Bis (2-chloroethoxy) methane
Bis (2-chloroethyl) ether
Bis (2-chloroisopropyl) ether
Bis (2-ethylhexyl) phthalate
4-bromophenyl phenyl ether
Butyl benzyl phthalate
2-chloronaphthalene
4-chlorophenyl phenyl ether
Chrysene
Di-n-butyl phthalate
Di-n-octyl phthalate
Dibenzo(a,h)anthracene
1,2-dichlorobenzene
1,3-dichlorobenzene
1,4-dichlorobenzene
3,3-dichlorobenzidine
Diethyl phthalate
Dimethyl phthalate
2,4-dinitrotoluene
2,6-dinitrotoluene
1,2-diphenylhydrazine
Fluoranthene
Fluorene
Hexachlorobenzene
Hexachlorobutadiene
Hexachlorocyclo-pentadiene
Hexachloroethane
Indeno(1,2,3-cd)pyrene
Isophorone
Naphthalene
Nitrobenzene
N-nitrosodi-n-propylamine
N-nitrosodimethylamine
N-nitrosodiphenylamine
Phenanthrene
Pyrene
1,2,4-trichlorobenzene
Reporting. Test results shall be reported on DWQ Form -A MR-PPA1 (or in a form approved by the
Director) by December 31' of each designated sampling year. The report shall be submitted to the
following address: NC DENR / DWQ / Central Files, 1617 Mail Service Center, Raleigh, North
Carolina 27699-1617.

DENR/DWQ
FACT SHEET FOR NPDES PERMIT DEVELOPMENT
NPDES No. NC0021636
Facility Information
Applicant/Facility Name:
Harnett County Public Utilities/North Harnett County WWTP
Applicant Address:
P.O. Box 1119; Lillington, North Carolina 27546
Facility Address:
607 Edwards Drive; Lillington, North Carolina 27546
Permitted Flow
5.6 MGD
Type of Waste:
Domestic
Facility/Permit Status:
Class IV/ Renewal
County:
Harnett County
Miscellaneous
Receiving Stream:
Cape Fear River
Regional Office:
Fayetteville (FRO)
Stream Classification:
WS-IV
State Grid / USGS Quad:
F23NE/ Lillington
303(d) Listed?
Yes, listed on 2012 Draft
303(d) list as impaired for
Cu. All waters of NC are
listed as impaired for
mercury
Permit Writer:
Jim McKay
•
Subbasin:
03-06-07
Date:
April 23, 2012
Drainage Area (mi2):
3460
,3
Lat. 35° 21' 50" N Long. 78° 47' 25" W
Summer 7Q10 (cfs)
550
Winter 7Q10 (cfs)
600
Average Flow (cfs):
3360
IWC (%): 11.6
SUMMARY
The Harnett County Public Utilities Department operates the North Harnett County Regional WWTP
with permitted flow of 5.6 MGD. The NPDES permit expired on July 31, 2011; the application for
renewal was received on January 31, 2011.
The facility contains: headworks with an automatic self-cleaning mechanical bar screen, a manually
cleaned bar screen, a vortex grit separator, a Parshall flume with influent flow recorder and totalizer; a jet
aerated 1.74 MG capacity earthen flow equalization basin lined with a membrane to receive headworks
overflow; a 450 gpm pump station with dual pumps for equalization basin return flow; two parallel
treatment trains designed for biological nutrient removal, each consisting of a 434,000-gallon capacity
non -aerated tank with submersible mixers to be operated as an anoxic cell in conjunction with a 1.87-MG
capacity oxidation ditch aerated with fine bubble diffusers and designed with hydraulic jumps to
maintain counter -clockwise circulation of wastewater through the basins; three 3,000 SCFM centrifugal
blowers for oxidation ditch aeration housed in a blower building; two 110-ft diameter peripheral feed
clarifiers with 14-ft sidewater depth, each equipped with scum pumps and telescopic sludge valves; a
new sludge return pump station with three submersible pumps of 1,500 gpm, 3,000 gpm, and 4,000 gpm
capacity; a dual -channel ultraviolet disinfection system with open channel design containing four
ultraviolet lamp modules with a total of 160 low-pressure, high —intensity quartz lamps in each channel; a
lamp -cleaning tank; effluent flow metering through a V-notch weir; a 1,310 feet long 48-inch diameter
effluent outfall, with a cascade aerator discharging to the Cape Fear River; upgraded and expanded
sludge treatment and handling facilities including an aerated sludge -holding tank converted from an
existing 530,000-gallon aeration basin, two converted 32-ft diameter by 10-ft deep clarifier tanks
retrofitted with submersible mixers for stabilization of sludge with 25% liquid lime slurry, two new
16,000-gallon steel storage tanks and feed pumps for the lime slurry, a new decanting system for an
existing holding pond for stabilized sludge; and a septage receiving station equipped with a mechanical
screen for trash removal.
Fact Sheet
NPDES NC0021636 Permit Renewal 5/9/2012
Page 1

The facility has a modified pretreatment program with no permitted facilities; so sampling is conducted
quarterly in the year before its Headworks. analysis (every 5th year). The next Headworks analysis is
scheduled for 2012.
RECEIVING STREAM
The receiving stream is the Cape Fear River, classified WS-IV in Subbasin 03-06-07. This segment of
the Cape Fear River from US Highway 401 near Lillington to the Upper Little River is listed on North
Carolina's 2012 Draft-303(d) list as Impaired for copper. All North Carolina waters are classified as
impaired for mercury from aerial deposition.
COMPLIANCE SUMMARY: BASED ON THE PREVIOUS 3 YEARS (2009 - 2011)
Report
Month
Parameter
Violation
Date
Frequency
Units
Limit
Calculated
Value
Violation
Type
Action
2/2011
Ammonia-
Nitrogen
2/28/2011
Monthly
mg/ L
2.0
3.12
Monthly
Average
Exceeded
NOV
DMR DATA REVIEW: 1-2009 / 12-2011
Monthly `'
data
; `FLOW
MGD
TSS
mg/ L
BOD
mg/ L
Ammonia Total (as N)
mg/ L
Total Nitrogen
mg/ L
Total Phosphorus
mg/ L
Avg
2.263
1.30
2.83
< 1
5.77
1.79
Max
5.681
10.90
65.00
9.13
Min
0.992
0.00
0.00
0.0
Permit
limits
5.6 MGD
30/45
5.0/7.5 mg/L summer
10.0/15.0 mg/L winter
1.0/3.0 mg/L summer
2.0/6.0 mg/L winter
Monitor &
Report
Monitor &
Report
INSTREAM MONITORING:
Harnett County Public Utilities is a participant in the Middle Cape Fear River Basin Association
(MCFBA). Individual in -stream monitoring requirements for DO and temperature are waived as long as
the permit holder is a member of this Association.
Toxicant Analysis:
No toxicants are monitored in the permit. Antimony, arsenic, cadmium, total copper, total chromium,
total lead, mercury, molybdenum, total nickel, selenium, and total zinc are monitored by the LTMP. A
reasonable potential analysis (RPA) was conducted for copper, mercury and zinc. Copper did show RP,
but is an Action Level Parameter. No limit will be added. Mercury did not show RP, but only 4 samples
were available from the annual pollutant scans. Quarterly monitoring will be added to the permit for
mercury, using EPA Method 1631 E, with no limit. Zinc did not show RP, so no limit is required. The
other metals either were all below, the detection level, or only had one hit above detection just barely.
Aquatic Toxicity Testing
Testing results from January 2008 through January 2012 (17 consecutive tests) reflects all passing.
New Basin Policy:
Nutrients:
The Division is working toward a TMDL for nutrients for this basin, but such a document will not be
complete for several years. Since the county could not wait for its completion to expand their plant, they
have indicated their willingness to build the expanded plant with the capability to meet interim nutrient
limits until the TMDL is complete, at which time they expect to conform to that.
Fact Sheet
NPDES NC0021636 Permit Renewal 5/9/2012
Page 2

The Division has developed permitting strategies which address Nutrients and oxygen -demanding wastes
in the Cape Fear River basin. The strategy consists of general requirements that apply basin -wide and
specific requirements for each sub -watershed. Within each sub -watershed, the Department has grouped
the dischargers by size and type, and then set specific permit requirements for each category. The
categories vary from one sub -watershed to another, depending on the particular needs in each area.
The Division will not implement new discharge limits for oxygen -consuming wastes (BOD, CBOD, NH3-
N) or nutrients (Total Nitrogen (TN) and Total Phosphorus (TP)) on a broad scale as part of this strategy.
Existing limits for these parameters (unless permit -specific circumstances require otherwise) will be
carried over. However, where the Department expects to implement a TMDL or nutrient control strategy,
the sub watershed strategy may call for a re -opener clause in the affected permits allowing the Division
to add limits later in the permit cycle.
Nitrogen Species. Many dischargers in the basin already monitor and report Total Nitrogen (TN). To
support nutrient -sensitive modeling efforts in the basin, we now require dischargers in certain sub -
watersheds to report the component species (TKN and (NO3-N + NO2-N)) as well as TN. We will not
require testing of phosphorus species in this round of renewals.
Units of Measure. In geneal, we specify that TN and TP monitoring results be to be reported as
concentrations. However, if mass nutrient limits are in effect or are anticipated, we also require the
dischargers to calculate and report the equivalent mass loads. We will continue this approach in the Cape
Fear. See the strategies below for details. Note that this applies only to TN and TP; we will not require
dischargers to report the nitrogen species as mass loads.
Proposed Changes:
• Supplement to Permit Cover Sheet: Part 1 the facility description has been updated to match the
current 5.6 MGD plant.
o Part 2 regarding the AtC for the new plant has been removed, as the new plant is built
and in operation.
• Effluent Limitations and Monitoring Requirements page A.(1.) for 0.75 MGD has been deleted.
• Old page A.(2.) has been renumbered as A.(1.).
• On the new A.(1.), TRC monitoring, limit and footnote have been removed as UV light is now
used instead of chlorine for disinfection.
• Acute Toxicity testing at 90% has been deleted as it is no longer applicable.
• The Annual Pollutant Analysis has been changed to 3 tests during the permit cycle during
specified years.
• Old Special Condition A.(3.) regarding Supplemental Nutrient Monitoring Requirements has
been deleted. Nutrient monitoring remains unchanged in the permit (3/ Week summer, Monthly
in winter) for both TN and TP.
• Old Special Condition A.(4.) regarding acute toxicity pass/ fail permit limit has been deleted.
• Old Special Condition A.(9) Effluent Pollutant Scan has been replaced with our current language
requiring three tests instead of annual testing in keeping with EPA requirements.
• Quarterly monitoring for mercury will remain in the LTMP and not added to the permit,
but EPA Method 1631 E is required; there will be no limit at this time.
Fact Sheet
NPDES NC0021636 Permit Renewal 5/9/2012
Page 3

PROPOSED SCHEDULE FOR PERMIT ISSUANCE
Draft Permit to Public Notice: May 9, 2012(est)
Permit Scheduled to Issue: July, 2012 (est)
NPDES DIVISION CONTACT:
If you have questions regarding any of the above information or on the attached permit, please contact me
at [phone], or by email at [e-mail].
Name: Date:
Regional Office Comments
Name: Date:
Supervisor: Date:
Fact Sheet .
NPDES .NC0021636 .Permit Renewal 5/9/2012
Page 4

North Harnett Co. Regional WWTP REASONABLE POTENTIAL ANALYSIS
NC0021636
Qw (MGD) = 5.60
1QIOS(cfs)= 443.62
7Q I OS (cfs) = 550.00
7Q1OW (cfs)= 600.00
30Q2 (cfs) = NO 30Q2 DATA
Avg. Stream Flow, QA (cfs) = 3360.00
Receiving Stream: Cape Fear River
WWTP/WTP Class: IV
IWC @ IQ1OS = 1.92%
IWC @ 7QIOS = 1.55%
IWC @ 7Q1OW = 1.43%
IWC @ 30Q2 = N/A
IWC @QA= 0.26%
Stream Class: C
Outfall 001
Qw = 5.6 MGD.
CI -IRONIC TEST CONCENTRATION = 1.6 %
PARAMETER
TYPE
(1)
STANDARDS & CRITERIA (2)
PQL
UNITS
REASONABLE POTENTIAL RESULTS
RECOMMENDED ACTION
NC WQS / Applied %2 FAV /
Chronic Standard Acute
Max Pred
n # Det. Cw Allowable Cw
Copper (AL)
NC
7 FW(7Q10s) 7
ug/L
21 9
538
Acute: 380.2
_ _ _ _ _
Chronic: 451.6
No value > Allowable Cw
RP for AL(Cu,Zn,Ag,Fe,CI) - apply Quarterly
Monitoring in conjunction with TOX Test
Mercury
NC
12 FW(7Q10s)
0.5
ng/L
4 0
Note: n <9
Limited data set
2.4
Default C.V.
Acute: . NO WQS
___ _ ___ __ _ ___
Chronic: 774.2
No value =• Allowable Cw
_ _ _ ___ _ _ _ _ _ _______
No RP, No Limit
Add Quarterly Monitoring EPA Method 1631 E.
Zinc (AL)
NC
50 FW(7Q10s) 67
ug/L
20 20
224.4
Acute: 3,489.6
Chronic: 3,225.8
No value > Allowable C'w-
No RP, Predicted Max < 50% of Allowable Cw - No
Monitoring required
No RP, Predicted Max < 50% of Allowable Cw - No
Monitoring required
Page 1 of 1
21636, rpa
5/1/2012

Freshwater RPA
15 REQUIRED DATA ENTRY
Table 1. Project Information
❑ CHECK if HQW or ORW only
Facility Name
WWTP/WTP Class
NPDES Permit
Outfal I
Flow, Qw (MGD)
Receiving Stream
Stream Class
7Q10s (cfs)
7Q10w (cfs)
30Q2 (cfs)
QA (cfs)
1Q10s (cfs)
Data Source(s)
❑ CHECK for MODEL
North Hamett Co. Regional WWTP
IV
NC0021636
001
5.600
Cape Fear River
C
550.00
600.00
3360.00
443.62
2009 - 2011 DMRs, LTMP + Application Data
Follow directions for data entiyIn some eases a
comment menu list the available'choices ora
dropdown menu will provide a list you may select
from. Error message occur if data entry does not
meet input criteria. `.
Table 2. Parameters of Concern
Par01
Par02
Par03
Par04
Par05
Par06
Par07
Par08
Par09
Par10
Par11
Par12
Par13
Par14
Par15
Par16
Par17
Par18
Par19
Par20
Par21
Par22
Name
Type Chronic Modifier Acute
PQL Units
Arsenic
C
50
' FW
ug/L
Arsenic
C
10
HH/WS
ug/L
Beryllium
NC
6.5
FW
ug/L
Cadmium
NC
2
FW
15
ug/L
Chlorides' (AL).
° NC
230
FW
mg/L
Chlorinated Phenolic Compounds
NC
1
A
ug/L
Total Phenolic Compounds
NC
300
A
ug/L
Chromium
NC
50
FW
1,022
ug/L
Copper (AL) °
NC
7
FW'
7.3 ° ,
ug/L
Cyanide
NC
5
` °FW '
22
10
ug/L
Fluoride
NC
1,800
FW
ug/L
Lead
NC
25 °
FW
33.8
ug/L
Mercury
NC
12
FW
0.5
ng/L
Molybdenum
NC
2,000
. HH
ug/L
Nickel .T
NC
88
FW °
7, 261
ug/L
Selenium
NC
5
FW`
56
ug/L
Silver (AL)
NC
0.06
FW °
1.23
ug/L
Zinc (AL) '"
NC
50
. 'FW
67
ug/L
21636, input
5/1/2012

REASONABLE POTENTIAL ANALYSIS
21636, data
-1-
5/1/2012

2 Feb-09
3' Mar-09
4 Apr-09
5 May-09
6 Jun-09
7 Jul-09
8 Aug-09
9 Sep-09
10' Oct-09
11 Nov-09
12 Dec-09
13 Jan-10
14 Feb-10
15 Mar-10
16 Apr-10
17 May-10
18 Jun-10
19 Jul-10
20 Aug-10
21 Sep-10
22 Oct-10
23 Nov-10
24 Dec-10
25 Jan-11
26j Feb-11
27 Mar-11
28 Apr-11
29j May-11
301 Jun-11
311 Jul-11
321 Aug-11
33! Sep-11
34 ' Oct-11
351 Nov-11
36 Dec-11
37 PPA
38
39,
40_--
REASONABLE POTENTIAL ANALYSIS
Copper (AL)
Date Data BDL=1/2DL Results
1 - Jan-09106 106 Std Dev.
13 13 Mean
< 10, 5 C.V.
<� 10 5 n
10, 5
is y
22.8727
14.8452
1.5407
21
Mult Factor = 5.08
Max. Value 106.0 ug/L
10! 5 Max. Pred Cw 538.5 ug/L
301 30
19: 19
10, 5
10 5
10 5
39 39
10' 5
10
5
10' 5
Ys 10; 5
10 5
20 20
8.25: 8.25
8.25. 8.25
8.25' 8.25
Date
1, •
21
3!
41
5
6'
7
8,
9,
10
11:
121
13;
141
15
161
17
181
19
20:
21,
22!
23
24!
25:
26;
27'
28
291
30i
311
32;
331
34,
35'
36!
37
38:
39!
40t.
Mercury
Data BDL=1/2DL Results
1 0.5 Std Dev.
1 • 0:5 Mean
1,' 0.5 C.V. (default)
1, 0.5 n
Mult Factor =
Max. Value
Max. Pred Cw
SPECIAL-
Values"WITH
-"COPY."
0.0000
0.5000
0.6000
4
4.74
0.5 ng/L
2.4 ng/L
21636, data
- 2 - 5/1/2012

Date
•Jan-09
2' Feb-09
31 Mar-09.
4 Apr-09
51 May-09
6 Jun-09
7 Jul-09
8, Aug-09
9; Sep-09
10 . Oct-09
11 Nov-09
12; Dec-09
13', Jan-10
14, Feb-10
151 Mar-10
16: Apr-10
17 May-10
18 Jun-10
19 ' Jul-10
201 Aug-10
21 Sep-10
22: Oct-10
23! Nov-10
24, Dec-10
25 Jan-11
26; Feb-11
27: Mar-11
281 Apr-11
29 . May-11
301 Jun-11
311 Jul-11
32' Aug-11
33 Sep-11
34' Oct-11
35 Nov-11
36. Dec-11
37: PPA
381
39
401
REASONABLE POTENTIAL ANALYSIS
Zinc (AL)
Data BDL=1/2DL Results _
48 48 Std Dev. 20.5250
55 55 Mean 56.7250
56 56 C.V. 0.3618
64 64 n 20
58 58
Mult Factor = 1.70
Max. Value 132.0 ug/L
68 68 Max. Pred Cw 224.4 ug/L
41 - 41
49 49
46 46
56 56
132 132
7474
38. 38
42 42
49 49
57 57
71 • 71
43.5 43.5
43.5 43.5
43.5 43.5
21636, data
- 3 - 5/1/2012

NCDENR
North Carolina Department of Environment and Natural Resources
Beverly Eaves Perdue
Governor
The Honorable Gerald W. Darden
Mayor, Town of Newton Grove
P.O. Box 4
Newton Grove, North Carolina 28366
Dear Mayor Darden:
Division of Water Quality
Charles Wakild, P.E. Dee Freeman
Director Secretary
June 13, 2012
Subject: DRAFT NPDES PERMIT
Permit Number NC0072877
Newton Grove WWTP — Class WW-2
Sampson County
Enclosed with this letter is a copy of the draft permit for your facility. Please review the draft very
carefully to ensure thorough understanding of the conditions and requirements it contains. Your permit is
among several in the White Oak River Basin that the Division has targeted for expedited renewal. No
major changes have taken place to the Division's management strategy for the White Oak River.
The following modifications have been made to the draft permit:
• Updated list of treatment components. Please confirm this is accurate.
• Parameter codes have been added to Section A.(1.)
• Total Residual Chlorine footnote has been updated in Section A.(1.)
• Fecal Coliform limit/monitoring has been removed since there is no impairment.
• The frequency for TN and TP monitoring will remain quarterly.
Please submit any comments to me no later than thirty (30) days following your receipt of the draft.
Comments should be sent to the address listed at the bottom of this page. If no adverse comments are
received from the public or from you, this permit will likely be issued in late -July 2012, with an effective
date of September 1, 2012.
If you have any questions or comments concerning this draft permit, please contact me at (919)
807-6388 or [e-mail].
Sincerely,
1 / s
Maureen Scardina
cc: NPDES Unit
ec: Fayetteville Regional Office, Surface Water Protection Section
Steve Reid, Technical Assistance & Certification Unit
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
Location: 512 N. Salisbury St. Raleigh, North Carolina 27604
Phone: [phone] FAX: [phone]
Internet: http://portal.ncdenr.org/web/wq/home
An Equal Opportunity \ Affirmative Action Employer
or hCarol i na
Na!uurai

Permit NC0072877
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
PERMIT
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance with the provisions of North Carolina General Statute 143-215.1, other lawful standards
and regulations promulgated and adopted by the North Carolina Environmental Management
Commission, and the Federal Water Pollution Control Act, as amended, the
Town of Newton Grove
is hereby authorized to discharge wastewater from a facility located at the
Newton Grove WWTP
Pork Chop Hill Road
Sampson County
to receiving waters designated as Beaverdam Swamp in the Cape Fear River Basin in accordance with
effluent limitations, monitoring requirements, and other conditions set forth in Parts I, II, III and IV
hereof
This permit shall become effective , 2012.
This permit and authorization to discharge shall expire at midnight on January 31, 2017.
Signed this day , 2012.
DRAFT
Charles Wakild, P.E., Director
Division of Water Quality
By Authority of the Environmental Management Commission

Permit NC0072877
SUPPLEMENT TO PERMIT COVER SHEET
All previous NPDES Permits issued to this facility, whether for operation or discharge are hereby
revoked. As of this permit issuance, any previously issued permit bearing this number is no longer
effective. Therefore, the exclusive authority to operate and discharge from this facility arises under the
permit conditions, requirements, terms, and provisions included herein.
The Town of Newton Grove is hereby authorized to:
1. Continue to operate an existing 0.125 MGD wastewater treatment facility with the following
components:
• Manual bar screen
• Equalization basin
• Circular one -rotor aerated oxidation ditch w/center clarifier
• Rectangular traveling bridge sand filter
• Ultrasonic open -channel flow meter with totalizer
• Ultraviolet disinfection
• Cascade post -aeration
• Sludge pump station
• Back up generator
• Aerobic sludge digester
This facility is located south of Newton Grove off Pork Chop Hill Road at the Newton Grove
WWTP in Sampson County.
2. Discharge from said treatment works at the location specified on the attached map into Beaverdam
Swamp, currently classified C-Swamp waters in sub -basin 03-06-19 of the Cape Fear River Basin.

Permit NC0072877
A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - DRAFT
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
CHARACTERISTIC
Parameter Code
LIMITS
MONITORING REQUIREMENTS
Monthly
Average
Weekly
Average
Measurement
Frequency
Sample
Type
Sample
Location1
Flow
50050
0.125 MGD
Continuous
Recording
Influent or Effluent
BOD, 5 day (20°C)2 —Summer*
C0310
5.0 mg/L
7.5 mg/L
Weekly
Composite
Influent & Effluent
BOD, 5 day (20°C)2 —Winter*
C0310
10.0 mg/L
15.0 mg/L
Weekly
Composite
Influent & Effluent
Total Suspended Solids2
C0530
30.0 mg/L
45.0 mg/L
Weekly
Composite
Influent & Effluent
NH3 as N —Summer*
C0610
2.0 mg/L
6.0 mg/L
Weekly
Composite
Effluent
NH3 as N — Winter*
C0610
4.0 mg/L
12.0 mg/L
Weekly
Composite
Effluent
Fecal Coliform (geometric mean)
31616
200/100 ml
400/100 ml
Weekly
Grab
Effluent
Total Residual Chlorine3
50060
Daily Maximum 25 µg/L
2/Week
Grab
Effluent
Total Nitrogen4
C0600
Quarterly
Composite
Effluent
Total Phosphorus
C0665
Quarterly
Composite
Effluent
Dissolved Oxygen
00300
Daily average > 5.0 mg/L
Weekly
Grab
Effluent
pH
00400
> 6.0 and < 9.0
Standard Units
Weekly
Grab
Effluent
Temperature (°C)
00010
Weekly
Grab
Effluent
Dissolved Oxygen
00300
Weekly
Grab
Upstream &
Downstream
Temperature (°C)
00010
Weekly
Grab
Upstream &
Downstream
*Summer: April 1 — October 31
*Winter: November 1 — March 31
Footnotes:
1. Upstream = at least 50 feet upstream from the outfall. Downstream = near the mouth of Beaverdam Swamp.
2. The monthly average effluent BOD5 and Total Suspended Solids concentrations shall not exceed 15% of the respective
influent value (85% removal).
3. Monitoring is required only if chlorine is used for disinfection. The Division shall consider all effluent TRC values reported
below 50 µg/L to be in compliance with the permit. However, the Permittee shall continue to record and submit all values
reported by a North Carolina certified laboratory (including field certified), even if these values fall below 50 µg/L.
4. TN = TKN + NO3-N + NO2-N, where TN is Total Nitrogen, TKN is Total Kjeldahl Nitrogen, and NO3-N and NO2-N
are Nitrate and Nitrite Nitrogen, respectively.
THERE SHALL BE NO DISCHARGE OF FLOATING SOLIDS OR VISIBLE FOAM IN OTHER THAN TRACE AMOUNTS. •

Permit NC0072877
A. (2.) SUPPLEMENTAL NUTRIENT MONITORING REQUIREMENTS
Pursuant to N.C. General Statutes Section 143-215.1 and the implementing rules found in Title 15A of the
North Carolina Administrative Code, Subchapter 02H (specifically, 15A NCAC 02H.0112(b)(1) and
02H.0114(a)), and Part II, Sections B.12. and B.13. of this Permit, the Director may reopen this permit to
require supplemental nutrient monitoring of the discharge. The additional monitoring will be to support water
quality modeling efforts within the Cape Fear River Basin, and shall be consistent with a monitoring plan
developed jointly by the Division and affected stakeholders.

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Town of Newton Grove
Newton Grove WWTP
Coun : Sampson Stream Class: C-Swamp
Facility
Location
(not to scale)
Receiving Stream: Beaverdam
Swamp Sub -Basin: 03-06-19
Latitude: 35° 13' 30" Grid/Quad: Newton Grove South
Longitude: 78° 21' 32" HUC: 03030006
NORTH
NPDES Permit: NC0072877