NC0021474_Modification_20100708

r
NCDENR
North Carolina Department of Environment and
Division of Water Quality
Beverly Eaves Perdue
Governor
Mr. Robert L. Wilson, City Manager
City of Mebane
106 E Washington St.
Mebane, North Carolina 27302
Dear Mr. Wilson:
Coleen H. Sullins
Director
July 9, 2010
Natural Resources
Dee Freeman
Secretary
Subject: NPDES Permit Modification
Permit NCO021474
Mebane WWTP
Alamance County
Consistent with the Director's October 1, 2009, letter of intent to modify NPDES permits affected by the
Jordan Reservoir Nutrient Management Strategy rules and in consideration of public comments on the
subsequent draft permit modifications, the Division is forwarding herewith the revised NPDES permit
for the Mebane W WTP. 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.
The Division received no comments on the City's draft permit during the initial public comment period
and is issuing the permit with the proposed modifications. However, we did'receive comments from
several permittees regarding the standard permit conditions (Parts II, III, and IV) in the draft permits.
In response, Jeff Poupart of the Point Source Branch has worked with other programs within the
Division and with EPA Region 4 staff to evaluate and address those comments. The final permit
includes the resulting version of the standard conditions. We regret any inconvenience this delay may
have caused.
Implementation of Total Phosphorus (TP) Limits. The Jordan Reservoir Wastewater Discharge
Requirements (T15A NCAC 02B .0270) established annual mass phosphorus limits for fourteen
treatment facilities, to become effective with calendar year 2010. Thus, even though the effective date of
this permit modification is August 1, 2010, the new limits became effective January 1, 2010, by rule and
apply to calendar year 2010 in its entirety.
If any parts, measurement frequencies, or sampling requirements contained in this permit are
unacceptable to you, you have the right to an adjudicatory hearing upon written request within thirty
(30) days following receipt of this letter. This request must be in the form of a written petition,
conforming to Chapter 150B of the North Carolina General Statutes, and filed with the office of
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
One
Location: 512 N. Salisbury St. Ralegh, North Carolina 27604
NO Carolina
Phone: [phone] FAX: [phone] Customer Service: 1-877-623-6748
Internet: www.ncwaterqualitycrg
atut'a ly
An Equal Opportunity 1 Afimalive Action Employer
�/

Mr. Robert L. Wilson, City Manager
NPDES Permit Modification
July 9, 2010
Administrative Hearings, 6714 Mail Service Center, Raleigh, North Carolina 27699-6714. Unless such a
demand is made, this permit shall be final and binding.
This permit is not transferable except after notice to the Division of Water Quality. The Division may
require modification or revocation and reissuance of the permit. This permit does not affect the legal
requirements to obtain other permits which may be required by the Division of Water Quality, the
Division of Land Resources, the Coastal Area Management Act, or any other federal or local
governmental permit.
If you have any questions concerning this permit, please contact Mike Templeton at [phone] or at
mike. [e-mail].
Sincerely,
Coleen H. Sullins
Enclosure: Final permit modification, NC0021474
Copies: Linda R. Holt -106 E Washington St, Mebane, NC 27302
Chief, NPDES and Biosolids Permits Section, Region IV, EPA
Winston-Salem Regional Office, Surface Water Protection
Aquatic Toxicity Unit
PERCS Unit
NPDES Files
Central Files

Permit No. NCO021474
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
City of Mebane
is hereby authorized to discharge wastewater from a facility located at the
Mebane Wastewater Treatment Plant
635 Corrigidor Road (SR 1997)
southwest of Mebane
Alamance County
to receiving waters designated as Moadams Creek 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
Signed this day ............................. July 9, 2010.
August 1, 2010.
May 31, 2011.
Coleen H. Sullins, Director
Division of Water Quality
By Authority of the Environmental Management Commission

Permit No. NC0021474
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 City of Mebane
is hereby authorized to:
1. Continue to operate an existing 2.5 MGD wastewater treatment facility located at the Mebane
Wastewater Treatment Plant, on 635 Corrigidor Road (NCSR 1997), southwest of Mebane,
Alamance County, and consisting of:
• influent bar screen
• grit chamber
• dual aeration basins
• three final clarifiers
• sand filters
• chlorine contact chamber
• dechlorination
• aerobic sludge digesters
2. Discharge from said treatment works at the location specified on the attached map into the
Moadams Creek, which is classified C-NSW waters in the Cape Fear River Basin.

Permit No. NCO021474
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. Such discharges shall be
limited and monitored by the Permittee as specified below:
EFFLUENT
CHARACTERISTICS
EFFLUENT LIMITATIONS
MONITORING REQUIREMENTS
Monthly
Average
Weekly
Average
Daily
Maximum
Measurement
Frequency
Sample Type
Sample Location'
Flow
2.5 MGD
Continuous
Recording
Influent or Effluent
Total Monthly Flow (MG)
Monitor & Report
Monthly
Rec. or Calc.
Influent or Effluent
SOD, 5 day, 20°C
(April 1 - October 31) 2
5.0 mg/L
7.5 mg/L
Daily
Composite
Influent & Effluent
SOD, 5 day, 20°C (November
1 -March 31) 2
10.0 mg/L
15.0 mg/L
Daily
Composite
Influent & Effluent
Total Suspended Solids2
30.0 mg/L
45.0 mg/L
Daily
Composite
Influent & Effluent
NH3 as N
(April 1 - October 31)
2.0 mg/L
6.0 mg/L
Daily
Composite
Effluent
NH3 as N
(November 1 -March 31)
4.0 mg/L
12.0 mg/L
Daily
Composite
Effluent
Dissolved Oxygen'
Daily
Grab
Effluent
PH'
Daily
Grab
Effluent
Temperature (°C)
Daily
Grab
Effluent
Fecal nic m
(geometric mean)
200/100ml
400/100ml
Daily
Grab
Effluent
Total Residual Chlorine
17 pg/L
Daily
Grab
Effluent
Conductivity
Daily
Grab
Effluent
TKN
Monitor & Report (mg/L)
Weekly
Composite
Effluent
NO3-N + NO2-N
Monitor & Report (mg/L)
Weekly
Composite
Effluent
Total Nitrogen, TN6
Monitor & Report (mg/L)
Weekly
Composite
Effluent
TN Load 61
Monitor & Report (lb/mo)
Monitor & Report (lb/yr)
Monthly
Annually
Calculated
Effluent
Total Phosphorus, TP
Monitor & Report
Weekly
Composite
Effluent
TP Load 6,1
Monitor & Report (lb/mo)
5,056 Ib/yr (effective 1/1/2010)
Monthly
Annually
Calculated
Effluent
Fluoride
1.8 mg/L
Weekly
Composite
Effluent
Total Mercury'
0.012 pg/L
Weekly
Grab
Effluent
Total Copper
2/Month
Composite
Effluent
Total Zinc
2/Month
Composite
Effluent
Chloride
2/Month
Composite
Effluent
Chronic Toxicity 9
Quarterly
Composite
Effluent
Effluent Pollutant Scan 10
Annually
Grab
Effluent
All footnotes are listed on the following page.

Permit No. NC0021474
Footnotes:
1. See Special Condition A. (2.) for instream sampling locations and requirements. instream monitoring requirements may
be provisionally waived per Condition A.(3.).
2. The monthly average effluent BOD5 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 6.0 mg/L.
4. The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units.
5. TN = TKN + NO3-N + NO2-N, where TN is total nitrogen, TKN is is Total Kjeldahl Nitrogen, and NO3-N and NO2-N are
Nitrate and Nitrite Nitrogen, respectively.
6. TN or TP Load is the mass quantity of Total Nitrogen or Phosphorus discharged in a given period of time. See Special
Condition A.(8.), Calculation of Total Nitrogen or Total Phosphorus Loads..
7. Compliance with mass limits shall be determined in accordance with Special Condition A.(7.), Annual Limits for Total
Nitrogen or Total Phosphorus.
8. Mercury samples shall be analyzed using EPA Method 1631E.
9. Chronic Toxicity (Ceriodaphnia) P/F at 90% with testing in January, April, July and October (see Special Condition A.(4.)),
10. See Condition A.(5.), Effluent Pollutant Scan.
There shall be no discharge of floating solids or visible foam in other than trace amounts.
A.(2.) INSTREAM MONITORING REQUIREMENTS
Parameter
Sample
Type
Frequency , .
Sampling
Locationl
Dissolved Oxygen
Grab
3Meek (June -Sept)
1/Week (October -May)
U, Dt, D2, D3
Temperature
Grab
3Meek (June -Sept)
1/Week (October -May)
U, D1, D2, D3
Fecal Coliform
Grab
3Meek (June -Sept)
1Meek (October -May)
U, D1, D2, D3
Conductivity
Grab
3Neek (June -Sept)
1Meek (October -May)
U, D1, D2, D3
SAMPLE LOCATIONS
1. U -Upstream 100 feet of discharge, D1- Downstream at NCSR 1940, Moadams Creek, D2 -
Downstream at Back Creek at NCSR 1936, and D3 - Downstream at Back Creek at NC
Highway 54.
A.(3.) PROVISIONAL WAIVER OF INSTREAM MONITORING REQUIREMENTS
Instream monitoring requirements in this NPDES permit shall be provisionally waived so long as the
Permittee remains a member of the Upper Cape Fear River Basin Association and the Association
continues to function as approved by the Division and Environmental Management Commission. If
the Permittee does not participate in the Association or if the Association ceases to function, the '
instream monitoring requirements in this permit become effective immediately; and the Division may
reopen this permit by administrative letter to establish additional instream monitoring requirements, it
deems necessary to adequately characterize the effects of the discharges on water quality in the
receiving stream.

Permit No. NCO021474
A.(4.) CHRONIC TOXICITY PASS/FAIL PERMIT LIMIT
The effluent discharge shall at no time exhibit observable inhibition of reproduction or significant
mortality to Ceriodaphnia dubia at an effluent concentration of 90%.
The permit holder shall perform at a minimum, quarterl 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 11 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:
NCDENR/ DWQ/ 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 No. NCO021474
A.(5.) EFFLUENT POLLUTANT SCAN
The permittee shall perform an annual Effluent Pollutant Scan for all parameters listed in the table
below (in accordance with 40 CFR Part 136). The annual effluent pollutant scan samples shall represent
seasonal (summer, winter, fall, spring) variations over the 5-year permit cycle. Unless otherwise
indicated, metals shall be analyzed as "total recoverable." Additionally, the method detection level
and the minimum level shall be the most sensitive as provided by the appropriate analytical method.
Ammonia (as N)
Trans-1,2-dichloroethylene
Bis (2-chloroethyl) ether
Chlorine (total residual, TRC)
1,1-dichloroethylene
Bis (2-chloroisopropyl) ether
Dissolved oxygen
1,2dichloropropane
Bis (2-ethylhexyl) phthalate
Nitrate/Nitrite
1,3-dichloropropylene
4-bromophenyl phenyl ether
Total Kjeldahl nitrogen
Ethylbenzene
Butyl benzyl phthalate
Oil and grease
Methyl bromide
2-chloronaphthalene
Total Phosphorus
Methyl chloride
4-chlorophenyl phenyl ether
Total dissolved solids
Methylene chloride
Chrysene
Hardness
1,1,2,2-tetrachloroethme
Di-n-butyl phthalate
Antimony
Tetrachloroethylene
Di-n-octyl phthalate
Arsenic
Toluene
Dibenzo(a,h)anthracene
Beryllium
1,1,1-trichloroethane
1,2-dichlorobenzene
Cadmium
1,1,2-trichloroethane
1,3-dichlorobenzene
Chromium
Trichloreethylene
1,4-dichlorobenzene
Copper
Vinyl chloride
3,3-dichlorobenzidme
Lead
Acid -extractable compounds:
Diethyl phthalate
Mercury
P-chloro-m-cresol
Dimethyl phthalate
Nickel
2-chlorophenol
2,4-dinitrotoluene
Selenium
2,4-dichlorophenol
2,6-dinitrotoluene
Silver
2,4-dimethylphenol
1,2-diphenylhydrazine
Thallium
4,6dinitro-o-cresol
Fluoranthene
Zinc
2,4-dinitrophenol
Fluorene
Cyanide
2-nitrophenol
Hexachlorobenzene
Total phenolic compounds
4-nitrophenol
Hexachlorobutadiene
Volatile organic compounds:
Pentachlorophenol
Hexachlorocyclo-pentadiene
Acrolein
Phenol
Hexachloroethane
Acrylonitrile
2,4,6-trichlorophenol
Indeno(1,2,3-cd)pyrene
Benzene
Base -neutral compounds:
Isophorone
Bromoform
Acenaphthene
Naphthalene
Carbon tetrachloride
Acenaphthylene
Nitrobenzene
Chlorobenzene
Anthracene
N-nitrosodi-n-propylamine
Chlorodibromomethane
Benzidine
N-nitrosodimethylarnme
Chloroethane
Benzo(a)anthracene
N-nitrosodiphenylamine
2-chloroethylvinyl ether
Benzo(a)pyrene
Phenanthrene
Chloroform
3,4 benzofluoranthene
Pyrene
Dichlorobromomethane
Benzo(ghi)perylene
1,Z4-trichlorobenzene
1,1dichloroethane
Benzo(k)fluoranthene
1,2-dichloroethane
Bis (2-chloroethoxy) methane
Test results shall be reported to the Division in DWQ Form- DMR-PPA1 or in a form approved by the
Director, within 90 days of sampling. A copy of the report shall be submitted to Central Files to the
following address:
NCDENR/ DWQ/ Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
*Mercury samples shall be analyzed using EPA Method 1631.

Permit No. NCO021474
A.(6.) NUTRIENT ALLOCATIONS
(a.) The following table lists the Total Nitrogen (TN) and Total Phosphorus (TP) allocations assigned
to, acquired by, or transferred to the Permittee in accordance with the Jordan Lake nutrient
management rule (T15A NCAC 02B .0270) and the status of each as of permit issuance. For
compliance purposes, this table does not supersede any TN or TP limit established elsewhere in
this permit or in the NPDES permit of a compliance association of which the Permittee is a Co-
Permittee Member.
Total Nitrogen Allocation
-ALLOCATION AMOUNT (1)TYPE
ALLOCATION
SOURCE
DATE
STATUS
Delivered (lb/yr)
Discharge (lb/yr)
Base
Assigned by Rule
8/11/09
22,526
40,225
Active
(T15A NCAC 02B .0270)
TOTAL
22,526
40,225
Active
Footnote:
(1) Nitrogen Transport Factor = 56%
Total Phosphorus Allocation
ALLOCATION AMOUNT ")
ALLOCATION
SOURCE
DATE
STATUS
Delivered (Ibtyr)
Discharge (Iblyr)
TYPE
Base
Assigned by Rule
8/11/09
2,781
5,056
Active
(T15A NCAC 02B .0270)
TOTAL
2,781
5,056
Active
Footnote:
(1) Phosphorus Transport Factor = 55%
(b.) Any addition, deletion, or modification of the listed allocation(s) (other than to correct
typographical errors) or any change in status of any of the listed allocations shall be considered a
major modification of this permit and shall be subject to the public review process afforded such
modifications under state and federal rules.

Permit No. NCO021474
A.(7.) ANNUAL LIMITS FOR TOTAL NITROGEN OR TOTAL PHOSPHORUS
(a.) Total Nitrogen (TN) and Total Phosphorus (TP) allocations and load limits for NPDES
dischargers in the Jordan Lake watershed are annual limits and apply on a calendar year basis.
(b.) For any given calendar year, the Permittee shall be in compliance with the annual TN (or TP)
Load limit in this Permit if:
(i.) the Permittee's annual TN (or TP) Load is less than or equal to the effective limit, or
(ii.) the Permittee is a Co-Permittee Member of a compliance association.
(c.) The TN (or TP) Load limit in this Permit may be modified as the result of allowable changes in
the Permittee's allocations.
(i.) Allowable changes include those resulting from purchase of TN (or TP) allocation from an
authorized mitigation banker, the Ecosystem Enhancement Program, or other source
allowed under applicable regulations; purchase, sale, trade, or lease of allocation between
the Permittee and other dischargers; regionalization; and other transactions approved by
the Division.
(ii.) The Permittee may request a modification of the TN (or TP) Load limit in this Permit to
reflect allowable changes in its allocation(s).
(A) Upon receipt of timely and proper application, the Division will modify the permit as
appropriate and in accordance with state and federal program requirements.
(B) Changes in TN (or TP) limits become effective on January 1 of the year following
permit modification. The Division must receive application no later than August 31
for changes proposed for the following calendar year.
(iii.) Any requests for modification should be sent to:
NCDENR/ DWQ/ NPDES Programs
Attn: Jordan Lake Watershed Coordinator
1617 Mail Service Center
Raleigh, NC 27699-1617
(d.) If the Permittee is a member and co-permittee of an approved compliance association on January
1 of a given year, its TN and TP discharges during that year are governed by that association's
group NPDES permit and the limits therein.
(i.) The Permittee shall be considered a Co-Permittee Member for any given calendar year in
which it is identified as such in Appendix A of the association's group NPDES permit.
(ii.) Association roster(s) and members' TN and TP allocations will be updated annually and in
accordance with state and federal program requirements.
(iii.) If the Permittee intends to join or leave a compliance association, the Division must be
notified of the proposed action in accordance with the procedures defined in the
association's NPDES permit.
(A) Upon receipt of timely and proper notification, the Division will modify the permit as
appropriate and in accordance with state and federal program requirements.
(B) Membership changes in a compliance association become effective on January 1 of the
year following modification of the association's permit.
(e.) The TN and TP monitoring and reporting requirements in this Permit remain in effect
throughout the term of the Permit and are not affected by the Permittee's membership in a
compliance association.

Permit No. NC0021474
A.(8.) CALCULATION OF TOTAL NITROGEN OR TOTAL PHOSPHORUS LOADS
(a.) The Permittee shall calculate monthly and annual TN Loads as follows:
(i.) Monthly TN (or TP) Load (lb/mo) = TN (or TP) x TMF x 8.34
where:
TN or TP = the average Total Nitrogen or Total Phosphorus concentration
(mg/L) of the composite samples collected during the month
TMF = the Total Monthly Flow of wastewater discharged during the
month (MG/mo)
8.34 = conversion factor, from (mg/L x MG) to pounds
(ii.) Annual TN (or TP) Load (lb/yr) = Sum of the 12 Monthly TN (or TP) Loads for the calendar
year
(b.) The Permittee shall report monthly Total Nitrogen and Total Phosphorus results (mg/L and
lb/mo) in the appropriate discharge monitoring report for each month and shall report each
calendar year's results (lb/yr) with the December report for that year.
A.(9.) NITROGEN OPTIMIZATION
(a.) Not later than February 11, 2010, theTermittee shall:
(i.) evaluate its treatment facilities and operations,
(ii.) identify further opportunities to improve and optimize nitrogen reduction in the existing
facilities beyond those previously implemented pursuant to G.S.143-215.1B(d), and
(iii.) submit a report to the Division documenting its findings, proposing optimization measures,
and describing expected results.
(b.) No later than six months following the Divisions written acceptance of the report, or as provided
in the acceptance, the Permittee shall implement the proposed measures.
(c.) Beginning one year following the Divisions acceptance of the report and continuing through
2016, the Permittee shall submit a progress report to the Division documenting the status of the
proposed measures and the nitrogen reductions achieved at the facility during the previous
calendar year.
(d.) Reports shall be submitted to:
NCDENR/ DWQ/ NPDES Programs
Attn:Jordan Lake Watershed Coordinator
1617 Mail Service Center
Raleigh, NC 27699-1617
A.(10.) NUTRIENT MONITORING REOPENER
Pursuant to N.C. General Statute Section 143-215.1 and the implementing rules found in Title 15A of
the North Carolina Administrative Code, Subchapter 2H, specifically,15A NCAC 2H.0112(b) (1) and
2H.0114(a), and Part II, Sections B-12 and B-13 of this permit, the Director of DWQ 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.

�r;A
NCDENR
North Carolina Department of Environment and Natural
Division of Water Quality
Beverly Eaves Perdue
Governor
Coleen H. Sullins
Director
November 4, 2009
Resources
RECEIVED
N.C. Dept. of ENR
NOV 0 9 2009
Winston-Salem
Regional Office
MEMORANDUM
To: Debra BeFlej C�
NC DENR / DEH / Public Water Supply Section Regional Engineer
Winston-Salem Regional Office
From: Mike Templeton
Point Source Branch/ NPDES
Subject: Review of Draft Permit NCO021474
Mebane WWTP
Alamance County
lee Freeman
Secretary
Please indicate below your agency's position or viewpoint on the draft permit and return this form by
December 4, 2009. If you have any questions on the draft permit, please contact me at 919-807-6402 or
mike. [e-mail].
RESPONSE: (Check one)
Concurs with the issuance of this permit provided the facility is operated and maintained properly,
the stated effluent limits are met prior to discharge, and the discharge does not contravene the
designated water quality standards.
❑ Concurs with issuance of the above permit, provided the following conditions are met:
❑ Opposes the issuance of the above permit, based on reasons stated below or attached:
1617 Frail Service Center, Raleigh, North Carolina 27699-1617
Location: 512 N. Salisbury St. Raleigh, North Carolina 27604 T�r0110 7.. 1
Phone: [phone] i FAX: [phone] i Customer Service: 1-877-623.6748 1 V Ol-tlt Ciai011ilii
Internet: www.nc:vaterquality.crg /yfC
An Equal Opportunity : Aliirmauve Aclion Employer Naturally

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r, Pan+L "° N00056413.discharging Dats -
Jennifer Snead, being duly sworn, says that she is the
MJ Creek
Meatless lM/JTP, d�arcJg W Megan Cratic
Principal Clerk of PMG, LLC, doing business as The Herald-
h ch
n Qahan Cihuty.
NPDES Permit No. NC0043559, Fearrthgton Untnee,
ke - l P. oedagn9 b Ur m
Sun, a newspaper published in and of general circulation in
in them CCurWN
� . CRY Of GrOancoofo
TZ Osborne WWTP, discharging to South Buffalo
said County, and that a notice of which the annexed is a True
Y
°1�� hnd
Cr®reeetvo -
Copy, was published in said newspaper one time on the 17`"
NPDES Pmrd[ No. NMM4325, Cty Of
Effabek n Cdewr�' deda�9 to North D`
day of November, 2009.
NPOES Pemt No. N00023868, City of Sulk'gon -
Fide WWTP, d.*,gj ToHaw Pis n G11Od
Permit No. N000238]6, City Of Bui glarh -
Ba#aid VVAMP, dsiwgbo to Egg Abrtnalce Creek
M
NPOES Perk No. NC0024861, City Of Reidevile -
gctidsvie WWTP, derihagkg to Haw Rver H Rotk-
Na N0002M, City of Gherern - Ga-
nam WWTP, lsdwghg to Haw %er in Abinxce
fF ES Parrs No NODM1474. City of M9h8he - Nitr
here W,MP: dxlhagh9 th M"cans Creek nMaros A6
N Perrrii[ No. NW02Si54, Twos of P9d0ere -
to Robeson Creek ih
\� % y�
Canon CPrty,
No. Garters one Fenn
NPOES enn'd . NCODS
N��
Pr ci 1 Clerk
,srs Far WWIP,
Homeowners Assoc. - Ouard
Coune
deihagg m 9tfab h Glbtl Carty,
car rid mg PoPosedpub pant wi
30 days after
be ao�:pmd uN 30 days aPox the publish dTb d
be
the ra0os. AI carrrhers recaed poor m that dab
sl
are cersldeed rt the that de[errrirators regarting
to foPcaed font. The Dkedcr of the NC Dkzn
of Wear O.c#y may dl m hctl a Pit rreetg
for to proposed permits 'hood is Dtvebl nrd.e
Sworn to and subscribed before me this 17th dayof
ag age deli kM9
CoPre d th daft pent other supporting kb -
November, 2009.
rm
the ial, p� se! to� present par
merit of the costs of reproM.tiah. Man oomna S
� � a d °Via e
�e QLsky a the atl Dion
Sprinkle at [phone]. Please Include the
NPDFS parrs[ nrrr1eer fatbcfedi n ay mrrrari�
w[. the DMtian d
f
tan. h etl Peeorh; mry a$o
Wafsr Onsty at 512 N. 9Ebry meet, PbWKj4 PC
2�604-1148 between the hours of 8:00. and
5:0[pr^t> re+ie.v iiumatim m fle.
,; FiS NrHerdan, 20D9
otary Pubhic
My Commission Expires: 8-15-14
Durham County, North Carolina
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tltelaon •Empap
Unit
The North Carolina Environmental Management Commission proposes to Issuea NPDES
Wastewater discharge permit to the personis) listed below.
Halifax County Schools requested renewal of Permit NCO038610 for Pittman Elementary
School W WTP In Hal [fax County. This permitted facility dischargestreatedwastewaterto
an untamed tributary to Burnt Coal Swamp In the Tar -Pamlico River Basin.
Halifax County Spools requested renewal of Permit NCO038580 for Eastman Middle
School Will In Halifax County; this permitted discharge is treated wastewgter to an
unnamed tributary to Little Fishing Creek in the Tar -Pamlico River Basin
Halifax County Schools requested renewal of permit NCV alff" for Dawson Elementary
School W WTP in Halifax County; this permittetl discharge is treated wastewater to an
unnamed tributary to Deep Creek, Tar -Pamlico River Basin.
Chowan County (P.O. Box 1030, Edenton, NC 27932) has applied for renewal of NPDEB
Permit NC0032719 for the Valhalla Water Treatment Plant In Chowan County. This
permitted facility discharges treated wastewater to RockYhock Creek in the Chawat
River Basin. Currently total residual chlorine and total chloride are water quality limited.
TBIs discharge may affect future allocations in this portion of the Chowan River Basin.
UnIfI-Kmsion LLC,4693 Hwv it North, Kinston, NC 2L%2, hasapplled fora modlllmtlnot
its NPDES permit (NC0003760) discharging treated Industrial wastewater m the Neuse
tllscharge oiver in f stormwateHouse rer Basin. and law-flowNPDES
ieo hate. Is
Eisch6meied to Inclucle it*
may affect future
discharges In this Portln of the river basin
Durham County, Triangle W WTP, NC0026051, has applied for an NPDES permit renewal
This facility discharges to Northeast Creek in the Cape Fear River Basin. Currently BOD
and ammonia are water quality limited. This discharge may affect future d[sclharaes In
this Portion of the receiving stream.
The City of Durham, 101 City Hall Plaza, Durham, NC 27701 has applied for renewal of
NPDES permit NCO047597 for Its South Durham Water Reclamation Facility in Durham
County, Th[s Permitted focllltvdischorges treated wost"atertaan unramed}rlbutary to
New Hop! Creek in the Cape Fear River Basin. Currently. BOO, ammnia nitrogen, total
residual chlorine, total Phosphorus, and total nitrogen are water quality limited. This
discharge may affect future allocations in this Partin of the watershed.
Town of Macclesfield has requestetl renewal of permit NCO050661 for the Macclesfield
W WTP In Edgecombe County. This PPermitted discharges Is treated domestic wastewater
to Briery Branch in the Tar-Ponlico River Basin.
Fearritgton Utilities, Inc. (2000 Feaml bn Village, Millsboro, NC 27312) haspolled f n
renewal o NPDES permit number N559 for the Fearrington Village
Chatham County. This permitted facility discharges fllter-backwashwastewater to in the
Bush Creek. in the Cape Fear River Basin. Some parameters may be water ual lty limitetl,
which may, affect future allocations in this portion of the Cape Fear Rver Basin.
• City ollBurli�an(1P.O.8oxlS5%Burlingtan NC27216135s), has applied for renewal' of
N PDES perm inum Pr NC0023W6 for the utti Burlington WWTP. This Permitted; facility
discharges treated wastewater to the Big Alaoance Creek In the Cape Fear River Basin.
Some parameters may be water quality limited, which my affect future allocations In
this Portion othe Cope Fear River Basin.
• City of Burlinrgton, NPDES permit NC0023B69, has applied for renewal of Its permit
discharging to he How River in the Cope Fear River Basin. BOO, ammonia, total residual
chlorine and total Phosphorus am "ter qual IN limited parameters. This discharge may
affect future allocations Into the receiving stream.
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www..4th dt..

NCDENR
North Carolina Department of Environment and Natural Resources
Beverly Eaves Perdue
Governor
Division of Water Quality
Coleen H. Sullins
Director
October 1, 2009
Robert L. Wilson, City Manager
City of Mebane
106 E Washington St.
Mebane, North Carolina
Dear Mr. Wilson:
27302
Dee Freeman
Secretary
Subject: Notification of Intent to Modify NPDES Permit NCO021474
to Incorporate Jordan Lake Nutrient Requirements
Mebane WWTP
Alamance County
Governor Bev Perdue recently signed legislation to complete passage of rules for the Jordan Lake
Nutrient Management Strategy. The Strategy includes a Wastewater Discharge rule (T15A NCAC 02B
.0270) that applies to your wastewater treatment facility. Pursuant to Sub -Item (6)(d) of that rule, I am
writing to notify you of (1) the nutrient allocations assigned to your facility and (2) the Division of
Water Quahty�s intent to modify the facility's NPDES permit to include nutrient limits as provided in
the rule. I also wish to remind you of other provisions of the rule that require your prompt attention.
This letter addresses only certain provisions of the Jordan Lake Wastewater Discharge rule. I encourage
you to familiarize yourself with the remainder of this rule.
Nutrient Allocations. The Wastewater Discharge rule establishes the maximum loads of nitrogen and
phosphorus that can be released from wastewater treatment facilities into the Jordan Lake watershed.
The rule specifies that these wasteload allocations are to be divided among the existing facilities in
proportion to their 2001 permitted flows (with certain exceptions).
Your facility has been assigned nitrogen and phosphorus allocations. The allocations are expressed as
annual mass loadings delivered to the lake. Due to foreseeable losses between the discharge point and
the lake, they are also expressed as the equivalent discharge loads at the point of discharge. The
delivered and the corresponding discharge allocations assigned to your facility are as follows:
NCO021474
Delivered Allocation
(lb/yr)
Transport
Factor (°k)
Discharge Allocation
(lb/yr)
Total Nitrogen
22,526
56
40,225
Total Phosphorus
2,781
55
5,056
2001 Permitted Flow: 2.5 MGD
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
Location: 512 N. Salisbury St. Raleigh, North Carolina 27604 One
Phone: [phone] FAX: [phone] Customer Service: 1-877-623-6748 NortliCarotlina
Internet: www.ncwaterquallty.org
"Ac Nahm / f
An Equal Opportunity lAftimut6ve Action Employer /�! ski`(

Robert L. Wilson, City Manager
Notification of Intent to Modify NPDES Permit
October 1, 2009
Intent to Modify Permit. The new rule specifies that facilities with permitted flows at or above 0.1
MGD, including yours, will be subject to effluent limits for nitrogen and phosphorus. The effluent
limits will equal the facility's discharge allocations. The new phosphorus limits become effective
beginning with calendar year 2010. Nitrogen limits become effective beginning with calendar year
2016.
It is the Divisions intent to modify the affected permits by the end of 2009 to include the new
phosphorus limits. We will draft permit modifications for the affected facilities in the coming weeks.
As with any such permit action, the proposed modifications will be subject to public review, and we
will provide you with a copy of the draft permit at that time.
The Division will add nitrogen limits during the 2011 permit renewals, with a compliance date of 2016.
Process Optimization. The rule specifies that no later than six months after its effective date, each
discharger with a permitted flow greater than or equal to 0.5 MGD must "evaluate its treatment
facilities and operations and identify further opportunities to improve and minimize nitrogen
reduction in the existing facilities...; and submit a report to the Division documenting its findings,
proposing optimization measures, and describing expected results."
Please provide three copies of your report to the Division at the following address no later than
February 11, 2010:
Division of Water Quality
Surface Water Protection Section, Point Source Branch
Attn: Jordan Lake Coordinator
1617 Mail Service Center
Raleigh, NC 20699-1617
Each discharger must implement the proposed measures no later than six months after the Division
accepts the report and continue until such time as the facility is upgraded for nitrogen removal. The
affected dischargers must also submit annual progress report to the Division for a period of five years.
If you have any questions regarding these requirements, please contact Mike Templeton at (919) 807-
6402 or at mike. [e-mail].
Sincerely,
C?eel'n�H. Sullins
cc: Linda R. Holt -106 E Washington St, Mebane, NC 27302
Winston-Salem Regional Office
NDPES Files
Central Files