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HomeMy WebLinkAboutNC0023876_Permit Modification_20101105NCDENR North Carolina Department of Environment and Natura Division of Water Quality Beverly Eaves Perdue Governor Mr. Robert Patterson, Jr. Director of Utilities P.O. Box 1358 Burlington, NC 27216-1358 Dear Mr. Patterson: Coleen H. Sullins Director November 5, 2010 Resources Dee Freeman Secretary Subject: Issuance of NPDES Permit Modifications Permits NCO023868 and NCO023876 East and South Burlington WWTPs 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 Burlington's subsequent request for further permit modification, and in consideration of public comments on the draft permits, the Division is forwarding herewith the revised NPDES permit for the East and South Burlington WWTPs. 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 during the public review period. The enclosed permits include the following changes as proposed: • Total Phosphorus (TP) Limits. Phosphorus limits have been removed from Condition A.(1.) of each permit. A new Condition A.(2.) describes the combined TP limit for the two facilities and how it will be administered. Other nutrient -related conditions of the permit have been modified as necessary. Each facility will continue to monitor and report its nutrient discharges individually, and we propose that the City report the combined load once each year, with the December monitoring report for one plant. Phosphorus limits in the Jordan Lake watershed became effective January 1, 2010, according to the wastewater rule. • Standard Permit Conditions. Most of the comments received from the Jordan Lake dischargers during the public review pertained to changes in the standard conditions, Parts I1,111, and IV of the permits. The permittees noted a small number of minor errors, but most comments had to do with changes in Part IV, where language was revised in anticipation of changes in the state pretreatment rules. The Division has corrected the minor errors and reversed all changes from Part IV that are not supported by existing state or federal rules. 1617 Mail Service Center, Raleigh, North Carolina 27699-1617 One Location: 512 N. Salisbury St. Ralegh, North Carolina 27604 NorthCarofina Phone: 919.807-6300 \ FAX: 919.807-6492 \ Customer Service: 1.877-623-6748 // Internet: www.ncwaterquality.org Naturally An Equal Opportunity \ Affirmative Action Employer U Mr. Robert Patterson, Jr. Issuance of NPDES Permit Modifications November 5, 2010 • Treatment Process Description. The reference to Powdered Activated Carbon Treatment on the Supplement to Cover Page for the East Plant (NC0023868) has been modified to note that the process is no longer in use. So long as the equipment remains in place and operative, it is not appropriate to remove it from the process description altogether. • pH Monitoring. Condition A.(1.) of the East Plant has been corrected to specify daily (rather than weekly) pH monitoring to satisfy the wastewater monitoring rule, T15A NCAC 02B .0508. • Nitrogen Optimization. The previous draft permit included a new condition pertaining to nitrogen optimization requirements from the wastewater rule. That compliance -date has passed, and the proposed condition has been deleted from the permit. • Nutrient Re -opener. The nutrient monitoring re -opener from the previous permit pertained to monitoring in preparation for the Jordan Lake study. It is no longer necessary and has been deleted from the permit. • Total Residual Chlorine Footnote. A footnote has been added to Condition A.(1.) indicating that the Division considers the compliance level for TRC to be 50 ug/L. All lab values must still be reported but, for compliance purposes, values below 50 ug/L meet the facility's TRC limit. 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 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 goverrunental permit. If you have any questions concerning this permit, please contact Mike Templeton at (919) 807-6402 or at mike. templeton@ncdenr.gov. Sincerely, eColeen H. Sullins �r Enclosure: Final permit modifications, NCO024325 and NCO047384 Copies: Chief, NPDES and Biosolids Permits Section, Region IV, EPA Winston-Salem Regional Office, Surface Water Protection Aquatic Toxicity Unit NPDES Files Central Files Permit No. NCO023876 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 Burlington is hereby authorized to discharge wastewater from a facility located at the South Burlington WWTP 2471 Boy Wood Road Graham Alamance County to receiving waters designated as Big Alamance 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. The permit shall become effective......................................................................................... December 1, 2010. This permit and authorization to discharge shall expire at midnight on ................................ May 31, 2011. Signed this day .................. November 5, 2010. 61r (�oleen H. Sullins, Director Division of Water Quality By Authority of the Environmental Management Commission Permit No. NC0023876 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 Burlington is hereby- authorized -to: - - . - 1. Continue to operate an existing 12.0 MGD wastewater treatment facility consisting of the following components: • Bar screen • Grit chamber • Equalization basin • ' Primary clarifiers • Anaerobic tanks F • Anoxic tanks • Aeration tanks • Secondary clarifiers • Final effluent filters • Chlorination (including non -potable water re -use) • Dechlorination • Primary and secondary sludge handling The facility is located at South Burlington Wastewater Treatment Plant on Boy Wood Road in Graham, Alamance County, and 2. Discharge from said treatment works at the location specified on the attached map into Big Alamance Creek, which is classified C-NSW waters in the Cape Fear River Basin. ii MY USGS Quad #: C21SE, Mebane, NC Lat. 3611 01' 05" Long. -790 22' 27" City of Burlington — South Burlington WWTP NCO023876 County: Receiving Stream: Stream Classification: River Basin: Sub -Basin #: Alamance Big Alamance Creek C NSW Cape Fear 03-06-02 iu Permit No. NCO023876 A.(1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - Outfall 001 During the period beginning upon 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 REQUIREMENT_ S Monthly Average Weekly Average Daily Maximum Measurement Frequency Sample Type Sample Location' Flow 12.0 MGD Continuous Recording Influent or Effluent Total Monthly Flow (MG) Monitor & Report Monthly Recorded or Calculated Influent or Effluent BOD, 5-day, (200C) Z (April 1— October 31) 9.0 mg/L 13.5 mg/L Daily Composite Influent & Effluent BOD, 5-day, (20°C) 2 (November 1— March 31) 18.0 mg/L 27.0 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) 3.0 mg/L 9.0 mg/L Daily Composite Effluent NH3 as N (November 1-March 31) 6.0 mg/L 18.0 mg/L Daily Composite Effluent Dissolved Oxygen 3 Daily Grab Effluent Fecal Coliform (geometric mean) 200/100ml- 400/100ml- Daily Grab Effluent Total Residual Chlorine 4 19 pg/L Daily Grab Effluent Temperature (°C) Daily Grab Effluent Conductivity Daily Grab Effluent pH 5 Daily Grab Effluent TKN Monitor & Report (mg/L) Weekly Composite Effluent NO3-N + NO2-N Monitor & Report (mg/L) Weekly Composite Effluent Total Nitrogen, TN 6 Monitor & Report (mg/L) Weekly Composite Effluent TN Load'$ Monitor & Report (lb/mo) Monitor & Report (lb/yr) Monthly Annually Calculated Effluent Total Phosphorus, TP Monitor & Report (mg/L) Weekly Composite Effluent TP Load',$ Monitor & Report (lb/mo) Monitor & Report (lb/yr) Monthly Annually Calculated Effluent Cyanide 9 Monthly Grab Effluent Total Mercury 10 14.0 ng/L Monthly Grab Effluent Total Copper Monthly Composite Effluent Total Zinc Monthly Composite Effluent Total Silver Monthly Composite Effluent Chronic Toxicity 11 Quarterly Composite Effluent Pollutant Scan See Condition A.(5.) Annual Grab/ Composite Effluent All footnotes are listed on the following page. PART I, Page 1 of 9 Permit No. NCO023876 A.(8.) CALCULATION AND REPORTING OF NUTRIENT LOADS The Permittee shall calculate and report monthly and annual nutrient loads for the East Burlington (NC0023868) and South Burlington (NC0023876) WWTPs as follows: (a.) Calculation of Discharge Loads: The Permittee shall calculate monthly and annual discharge loads for each facility as follows: (i.) Monthly Discharge Load (lb/mo, TN or TP) = 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 Discharge Load (lb/yr, TN or TP) = Sum of the 12 Monthly TN (or TP) Loads for the calendar year (b.) Calculation of Delivered Loads: (i.) The Permittee shall calculate delivered loads as follows: r (A) Individual, Annual Delivered Load (lb/yr, TN or TP) _ Annual Discharge Load (lb/yr, TN or TP) x TF where TF = Transport Factor, as follows: PERMIT FACILITY TFTN TFTP NC0023868 East Burlington WWTP 96% 97% NC0023876 South Burlington WWTP 80% 73% (B) Combined Annual Delivered Load (lb/yr) = Sum of the facilities' Individual Annual Delivered TN (or TP) Loads for the calendar year (c.) Reporting of Nutrient Discharges: The Permittee shall report each facility's monthly TN and TP dischargeloads in that facility's discharge monitoring report. (d.) Reporting of Combined Delivered Loads: The Permittee shall report each calendar year's combined delivered loads with the South Burlington WWTP's December report for that year and shall append the report with a summary of monthly loads and calculations. PART I, Page 9 of 9 Permit No. NC0023876 A.(7.) ANNUAL LIMITS FOR TOTAL NITROGEN AND TOTAL PHOSPHORUS (a.) Total Nitrogen (TN) and Total Phosphorus (TP) allocations and load limits for NPDES dischargers in the Jordan Lake watershed are annual loads 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) Discharge Load limit in this Permit if: (i.) the Permittee's annual TN (or TP) Discharge Load is not greater than the effective limit, or (ii.) the Permittee is a Co-Permittee Member of a compliance association. (c.) The TN (or TP) limit in this Permit may be modified as the result of allowable changes in the Permittee's allocation. (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) 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. PART I, Page 8 of 9 Permit No. NCO023876 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' ALLOCATION TYPE SOURCE DATE STATUS Delivered Discharge �(lb/yr) (lb/yr) Base Assigned by Rule 8/11/09 154,463 193,078 Active (T15A NCAC 02B .0270) TOTAL 154,463 193,078 1 Active Footnote: 1 Nitrogen Transport Factor = 80% Total Phosphorus Allocation ALLOCATION AMOUNT' ALLOCATION TYPE SOURCE DATE STATUS Delivered Discharge (lb/yr) (lb/Yr) Base Assigned by Rule 8/11/09 17,717 24,270 Active (T15A NCAC 02B .0270) TOTAL 17,717 24,270 Active Footnote: 1 Phosphorus Transport Factor = 73% (b.) Any addition, deletion, or modification of the active allocation(s) listed above (other than to correct typographical errors) or any change of allocation to `active' status 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. PART I, Page 7 of 9 Permit No. NCO023876 A.(5.) EFFLUENT POLLUTANT SCAN The Permittee shall perform an annual Effluent Pollutant Scan for all parameters listed in the attached table. The 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 shall represent seasonal variations. Unless otherwise indicated, metals shall be analyzed as "total recoverable." Ammonia (as N) Trans-1,2-dichloroethylene Bis (2-chloroethyl) ether Chlorine (total residual, TRC) 1,1-dichloroethylene Bis (2-chloroisopropyl) ether Dissolved oxygen 1,2-dichloropropane Bis (2-ethylhexyl) phthalate Nitrate/Nitrite 1,3-dichloropropylene 4-bromophenyl phenyl ether Kjeldahl nitrogen Ethylbenzene Butyl benzyl phthalate Oil and grease Methyl bromide 2-chloronaphthalene Phosphorus Methyl chloride 4-chlorophenyl phenyl ether Total dissolved solids Methylene chloride Chrysene Hardness 1,1,2,2-tetrachloroethane 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 Trichloroethylene 1,4-dichlorobenzene Copper Vinyl chloride 3,3-dichlorobenzidine 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 4,6-dinitro-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-nitrosodimethylamine Chloroethane Benzo(a)anthracene N-nitrosodiphenylamine 2-chloroethylvinyl ether Benzo(a)pyrene Phenanthrene Chloroform 3,4 benzofluoranthene Pyrene Dichlorobromomethane Benzo(ghi)perylene 1,2,4-trichlorobenzene 1,1-dichloroethane 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. The report shall be submitted 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 1631E. PART I, Page 6 of 9 Permit No. NCO023876 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 86%. 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: 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. PART I, Page 5 of 9 Permit No. NC00238,76 A.(3.) INSTREAM MONITORING REQUIREMENTS NOTE: The following need only be sampled if the permittee should elect to withdraw membership in the Upper Cape Fear River Basin Association. PARAMETERS TO BE SAMPLED: Parameter Sample Type Frequency Dissolved Oxygen Grab 3/week (June - September) 1/week (October - May) Fecal Coliform Grab 3/week (June - September) 1/week (October - May) Temperature Grab 3/week (June - September) 1/week (October - May) Conductivity Grab 3/week (June - September) 1/week (October - May) Total Phosphorus Grab 3/week (June - September) 1/week (October - May) SAMPLE LOCATIONS: .1. Upstream at Highway 87. 2. Downstream at a) Boy Wood Road (NCSR 2116) b) Saxapahaw Lake - above dam (sampling at this point shall not be required if the river flow is greater than 250 cfs at the USGS gauge 02096500) c) NCSR 1005 Upstream and downstream samples shall be grab samples. Instream sampling should be coordinated to reduce redundant sampling for the Burlington.- East, Burlington - South and Graham wastewater treatment facilities under the guidance of the Winston-Salem Regional Office. Each facility should conduct instream sampling the same day and in so far as possible at the same time of day. REPORTING REQUIREMENTS: Data entered on a form approved by the Division of Water Quality and summarized in an annual report due by January 1st of the year immediately following the summer period when sampling occurred. Yearly monitoring reports shall be sent to: NCDENR/ DWQ/ Modeling/TMDL Unit 1617 Mail Service Center Raleigh, NC 27699-1617 PART I, Page 4 of 9 Permit No. NCO023876 A.(2.) COMBINED LIMITATIONS FOR NUTRIENTS - Outfall C01 (a.) During the period beginning on the dates specified below and lasting until permit expiration, the Permittee is further authorized to discharge Total Nitrogen and Total Phosphorus from the East Burlington WWTP (NC0023868, Outfall 001) and the South Burlington WWTP (NC0023876, Outfall 001) subject to the following combined, delivered load limitations: 'dotal Nitrogen,, Total. Phosphorus'. Delivered (lb/yr)1 Delivered (lb/yr)1 Permit Facility Active Combined Active Combined' Allocations Limit Allocations . : Limit NCO023868 East Burlington WWTP 148,670 16,746 NCO023876 South Burlington WWTP 154,463 17,717 303133 �fFective 1/1/2016) Footnote: 34,463 effective 1/112010). 1 Allocations and limits in this table are expressed as delivered loads. See Condition A.(8.) regarding calculation of delivered loads from discharge loads. (b.) Compliance with these limits shall be determined in accordance with Special Conditions A.(7), Annual Limits for Total Nitrogen and Total Phosphorus, and A.(8.), Calculation and Reporting of Nutrient Loads. (c.) Nutrient monitoring and reporting requirements are specified in Special Conditions A.(1.), Effluent Limitations and Monitoring Requirements, and A.(8.), Calculation and Reporting of Nutrient Loads. (d.) Pursuant to N.C. General Statute Section 143-215.1 and the implementing rules found in Title 15A of the North Carolina Administrative Code, specifically,15A NCAC 02B.0270, and Part II, Sections B-12 and B-13 of this permit, the Division of Water Quality (Division) may reopen the permits listed above and establish more stringent nutrient limits upon finding that such limits are necessary to prevent the discharges from causing localized water -quality impacts in the receiving streams. (e.) The Permittee may request that its permits be modified to rescind these combined limits and establish individual mass discharge limits for each facility. The Division may, after written notification to the Permittee, rescind these combined limits and establish individual mass discharge limits for each facility if it determines that the combined limits do not support the objectives of the Jordan Lake Nutrient Management Strategy. The Division shall provide for public review of the proposed permit modifications and include in the permit an appropriate schedule of compliance for the proposed nutrient limits. PART I, Page 3 of 9 Permit No. NCO023876 Footnotes: 1. Sample locations: For instream monitoring requirements and sample locations, see Special Condition A. (3.). Instream monitoring requirements shall be waived as long as the facility continues to participate in the Upper Cape Fear River Basin Association. 2. The monthly average BOD5 and Total Suspended Solids concentrations shall not exceed 15% of the respective influent value (85% removal). 3. The daily dissolved,oxygen effluent concentration shall not be less than 6.0 mg/L. 4. The Division shall consider all effluent TRC values reported below 50 ug/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 ug/L. 5. The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units and shall be monitored daily at the effluent by grab sample. 6. TN is Total Nitrogen = TKN + NO3-N + NO2-N, where TKN is Total Kjeldahl Nitrogen, NO3-N and NO27N are Nitrate and Nitrite Nitrogen, respectively. 7. 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 and Reporting of Nutrient Loads. 8. The facility is subject to nutrient limitations as specified in Special Condition A. (2.), Combined Limitations for Nutrients. 9. The quantitation limit for cyanide shall be 10 ug/L (10 ppb). Levels reported at less than 10 ug/L shall be considered zero. 10. Low-level method 1631E must be used in sampling. 11. Chronic Toxicity (Ceriodaphnia) P/F at 86% in January, April, fuly and October. See Special Condition A.(3.). There shall be no discharge of floating solids or visible foam in other than trace amounts. PART I, Page 2 of 9 Final Permits, 11/5/2010 NCDENR N- CAROUNA DEPARTMENT OF ENVIRONMENT AND NAT L REBOu-E5 Fact Sheet - NPDES Permit Jordan Lake NPDES Dischargers 4 NPDES Permits PROPOSED PERMIT ACTION The Division proposed to modify four (4) NPDES permits for municipal wastewater treatment facilities in the Jordan Lake watershed of the Cape Fear River Basin. The purpose of the modifications is to set Total Phosphorus discharge limits in accordance with the Jordan Lake Nutrient Management Strategy: Wastewater Discharge Requirements, T15A NCAC 02B .0270. The Division first proposed related modifications for these permits in November 2009 and then modified the draft permits in response to comments from the Permittees. FACILITY INFORMATION The affected facilities are as follows: Permit Owner Facility Receiving Stream County NCO047384 City of Greensboro T.Z. Osborne WWTP South Buffalo Creek Guilford NCO024325 City of Greensboro North Buffalo Creek WWTP North Buffalo Creek Guilford NCO023868 City of Burlington Eastside WWTP Haw River Alamance NCO023876 City of Burlington Southside WWTP Big Alamance Creek Alamance JORDAN LAKE NUTRIENT MANAGEMENT STRATEGY The Jordan Lake Nutrient Management Strategy is a comprehensive set of rules and Session Law that became effective August 11, 2009. The Strategy aims to restore and maintain water quality, protect the lake's classified uses, and maintain or enhance protections currently implemented by local governments in existing water supply watersheds. The Strategy calls for improvements in stormwater management (existing and new development), agricultural practices, fertilizer application management, riparian buffers protection, and wastewater treatment. The Strategy establishes nitrogen and phosphorus allocations for all existing wastewater dischargers that treat nutrient -bearing wastes. For point sources, it specifies that facilities with a permitted flow of 0.1 MGD or greater must meet nutrient limits based on these allocations. The limits for both nitrogen and phosphorus are to be given as annual mass limits. The phosphorus limits become effective in CY2010, the nitrogen limits in CY2016. The figure below shows the watershed and the three subwatersheds. The strategy sets nutrient reduction targets for each subwatershed. PROPOSED MODIFICATIONS The Division proposes to incorporate the new phosphorus limits and related conditions into the affected permits. It intends to add nitrogen limits during the 2011 permit renewals. The proposed permit modifications go beyond adding the phosphorus limits, which were first proposed for the Greensboro and Burlington facilities in November 2009. The revised draft permits propose to apply combined TP limits for each City's wastewater facilities. In each case, the combined limit equals the sum of the City's individual allocations. In order to account for differences in transport losses in transit to Jordan Lake, the combined limits are expressed as delivered (as opposed to discharge) loads. Other nutrient -related conditions in the permits have been modified to reflect this arrangement. The modifications include minor changes as well. Out-of-date Special Conditions (for example, for requirements now completed) have been deleted. PUBLIC COMMENTS Greensboro noted one. additional correction in the standard permit conditions, which was corrected. 10-0,/:l 1MMUM4]-01I The four permits are being issued as proposed, except for the one correction in the standard conditions. < end of text > RECEIVED N.C. Dem. o` 11, ' SEP 0 7 2010 NCDENR iiona._, Regrc;na: Cl North Carolina Department of Environment and Natural Resources Division of Water Quality Beverly Eaves Perdue Coleen H. Sullins Dee Freeman Governor Director Secretary September 1, 2010 MEMORANDUM To: Lee Spencer NC DENR / DEH / Public Water Supply Section Regional Engineer Winston-Salem Regional Office _ p From: Mike Templeton f �y� Point Source Branch/ NPDES Opp, SEP 2 d tJill Subject: Review of Draft Permit NCO023876 _ South Burlington WWTPt :�'a I' Y s'CH Alamance County Please indicate below your agency's position or viewpoint on the draft permit and return this form by October 4, 2010. If you have any questions on the draft permit, please contact me at 919-807-6402 or mike. temp1eton@ncdenr.go7?. 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. 1-1 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: Signed Date 1617 Mail Service Center, Raleigh, North Carolina 27699-1617 Location: 512 N. Salisbury St. Raleigh, North Carolina 27604 One .Phone: 919-807-63001 FAX: 919-807-64921 Customer Service:1-877-623-6748 North Carol i n a Internet: www.ncwaterquality.org aln //� An Equal opportunity 1 Affirmative Action Employer Naturally .Templeton, Mike From: Hyatt.MarshalI@epamail.epa.gov Sent: Tuesday, September 28, 2010 2:43 PM To: Templeton, Mike Subject: NC0023876, South Burlington WWTP EPA has no comments on this draft permit. t ` Radio B. EVERFIT JORDAN LAKE cm' KINGHA WATERS iIED _I.., � .CASWELL i -r -- - � 1_ I �H •rO f tJ � / r k L Bmbna b '`� r X"1' is o \ ��`.r Hewu�wwGee�d i I an �o t�y a r p I ge�xc h='Pftn—allo<Tmue4xoas Wb d m '�f'a {'.. ._ * ^vy LL=cf ,6x,,.°r'Am:,�" �.�3..�i %JFY' _ _ s n!:"1Elan '�. ^".,.Art. "� a'Y,a'6.`{1.5� �.. � • tr wr.1 GVILF1 ° �� Y s I '`•' pper NewNewCRO Hope u nn ji Bwepsb w l "� r Q hed ORANGZ Gaa�xP� r c�Sf ,Sri`�.��,, m I:�^f{ r �•r�t r +,. �, { ���--++,,j ^._,'o�j !� Y o f tr�ff i _ i L tip / 3f 1-. /�"� +aIOURHAM ✓I rj'rf! I k✓ ,f1 ALAMANCE ^'TM�•` j mg-1 General Map olthe Cape Fear RFarBasin 1 �� � r�sn..?-• �{� r��,,,£ 2:.a! �,) ti .I � � y 1,1 � w ,._r^ C- �; ,-� �+� � i�;j� � r' GRATAAM 1.r n �',`Ly4 *awl �`C / `` , t� Y�� ' m �, '�+,C 4 ` �� � ✓brQ-"x SP !r f I WAKE , l tT' .1(.ryiy+yFs.- r` C fr arw - of Hope SO,,watershed NUTRIENT ALLOCATIONS - INITIAL , ASSIGNMENTS - - , j -T JORDAN RESERVOIR NUTRIENT MANAGEMENT STRATEGY .. ............... . ..... .. ....... . -A.u-g_qst 2009 Z�. TMDL Targets: 35 0 5% TN reduction TP reduction ... .. . ............... ....... ....... ... ........... . ......... ........ . . .. ... ....... ... ........... - ... . ...... .... ............... .. . ........... .......... . .... . ..... ............. ... .... . . . ... ........ . .. ... . ..... . . .. ..... . . . . ... .. ....... .. ..... .. . .... ....................... . ... . Transport Allocations - TIN Allocations - TP Permit Owner Facility QpmtGO (M) TIN I TP TIN at EOP (lb/yr) Avg Conc EOP (mg / L) ITNtoLake (lb/yr TP at EOP Ib/ r Avg Conc j EOP(mg/L) TPtoLake (lb/yr) NCO047597 NCO025241 NCO026051 NCO056413 City Durham ' -- - - - ---- " - - - ---' - -- '- -'-- --- ' Orange Water & Sewer Authority Durham County Whippoorwill Ll-C South Durham WRF --' --" Mason Farm WWTP Carolina Meadows WWTP __20..0 14.5 12.0 0.35 750/q _Z_ 63% 96% 63% 70b 47% 97% 47% ... . . .... t8 5,qq5 134,375 111,207 3,244 .04 3.04 3.04 3.04 139,�109. 84,656 106759 2,043 _53 14,0 10,188 8,432 246 9 - 0.23 0.23 9,415 - - - _ _ 4,789 8179 116 lNC0051314 North Chatham Water & Sewer Company, LLC Cole Park Plaza 1 0.050 81% 84% 1,826 12.00 1,479 - 304 2.00 256 NCO043257 Nature Trails Association, CLP Nature Trails Mobile Home Park WWTP 0.040 81% 84% 1,461 12.00 1,184 244 2.00. 205 Birchwood Mobile Home Park Birchwood Mobile Home Park 0.018 70% 64% 658 12.00 460 110 2E.O 0 70 NCO074446 HilltopMobile Home Park Hilltop Mobile Home Park 0.012 70% 64-/. 438 12.00 307 73 2.00 HE2 47 NCOOMC0042803 48429 Cedar clar Village ADartments Cedar Village Apartments 0.005 100% 100% 183 12.00 183 �0 2.00 .00 30 46.981 438,736 1 PS A lloc'n, lb/yr EOP 33,680 1 PS Alloc'n, lblyr EOP 3.94 1 mg/jTj Lg_l___ 0.23 mg / L TP,_ 12.00 1 mg/ L T114 Sm 2.00 1 mgi-L-Trp, Sm -------------PS . Alloc'n, lb/yr at Lake. 1 336,079 PS Alloc'nlb/yr at Lake: i 23,106 Syr T1$jL gL. 332467 _�� lb/yr TIN, Sm: 1 3,613 lb/ 1922,8 IN y r TP, Sm: 608 Calc'd redxn at Lake: 35.00/b Calc'd redxn at Lake: 5. 0 0A RN W KOPE IR M T Nutrient Reduction Targets: loads for TN and TP (0% reduction required, 0% increase allowed). I - I Transport Allocations - TIN Allocations -TP Permit Owner I Facility Qprnt I (MGO) TNI TP I at EOPAvg Conc ITNto Lake (Iblyr)I EOP (mg/L) I (lb/yr) TP at EOP I Avg Conc JTPtoll-ake (lb/yr) EOP(mg/L) I (lb/yr) INCO043559 I Fearrington Utilities, Inc iFearrington Utilities WWTP 0.5 84%1 88% 8,138 1 5.35 1 6,836 566 1 0.37 1 498 0.51 8,138 1 PS Alloc'n, lb/yr EOP 566 1 PS Alloc'n, lb/yr EOP 5.35 mg L 1 MgLL TP,_jjg . N/A -g/ L TIN, Sm _0.37 N/A 1mg/LTPSm I . . ............ . PS Alloc'n, lb/yr at Lake. 1 6,836 PS Alloc'n, lb/yr at Lake: 498 l§/yr MY Lg- 6,836 - lb/yr TIN, S- .T lb/yr TP, L Lg�- 498 -- �- -9 lb/ TP, N/A - - y Cak'd redxn at Lake: 0.00/b Calc'd redxn at Lake: 0. 0 O/C Nutrient Reduction Targets: - ..._ __..... - __ ..._.__.. ... .. ......... -:. -_.. i 8% TN reduction 50 TP reduction Transport Allocations - TN Allocations - TP Permit Owner Facility Qpmt MCA TN Till I TN at EOP Ib/ r I Avg Conc EOP /L ITNto Lake Ib/ r TP at EOP (Ill I Avg Conic EOP /Il ITPto Lake Ib/ r NC0047384 City of Greensboro T.Z. Osborne WWTP 40.0 450% 440/. 643,595 5.29 289§18 80, 0.66 35,595 NCO024325 City of Greensboro North Buffalo Creek WWTP 16.0 43% 42% 257,438 5.29 110,698 32,359 I 6.66 13,591 NC0023.868 38 NC00276 City of Burlington. - _ of City Burlington Eastside WWTP W Southside WWTP 12 0 12.0 77% 80% 69% 73% 193,078 07 193,8 5 29 5.29 148 ,670 154 463 _. _. 24,270 2.4,270 0.66 0.66 16,746 17,7 17 NCO024881 City of Reidsville - Reidsville WWTP _ 7.5 66% 56% 120,674 5.29 79 645 15 169 0.66 8,494 NC0021211 Cl of Graham Graham WWTP 3.5 81% 71% 56,315 5.29 45,615 7,079 0.66 5,026 N00021474 NCO020354 City of Mebane _.. __.. _ Town of Pittsboro Mebane WWTP Pittsboro WWTP 2.5 2.25 560/. 76% 55% 82% 40,225 36 202 5 29 5.29 22,526,. 27,514 ,5,056 44�55511 0.66 - 0.66 2,781 3,731 NC0066966 Quarterstone Farm Homeowners Assoc. Quarterstone Farm WWTP 0.20 50% 43% 3 218 5.29 1 609 404 I 0.66 174 NC0003913 Glen Raven Inc Altamahaw Division plant 0.15 58% 49% 2,413 1 5.29 1,400 303 0.66 149 NCO022691 Chateau Communities, Inc. Autumn Forest Manuf. Home Community 0.082 52% 46% 2,995 12.00 1,558 499 2.00 230 NC0001210 Monarch Hosiery Mills Inc Monarch Hosiery Mills Incorporated 0.050 58% 49% 1,826 12.00 1,059 304 2.00 149 NCO022675 NCO042285 NCO046043 NCO077968 NCO042528 NC0038156 NCO073571 Coun Club Communities LLC Trails Property Owners Assoc Oak Ridge Milit�my Homers Mobile Home Park _ B Everett Jordan & Son-1927 LLC Guilford County Schools Mervyn R. King Birmingham Place Trails WWTP Oak Ridge Milita Academy Homers Mobile Home Park B Everett Jordan 1927 LLC Northeast Middle &Senior High WWTP Countryside Manor WWTP 0.043 0.040 0.040 0.040 0.036 0.032 0.030 55% 84% 46% 58% 84% 52% 42% 52% 76% 41% 49% 76% 46% 38% 1,571 � 1 461 1,461 1,461 1,315 _ _ 1,169 1,096 12.00 12.00 12.00 12.00 12.00 12.00 12.00 864 1,227 672 847 1,105 608 460 262 244 244 244 219 195 183 2.00 2.00 2.00 2.00 2.00 2.00 1 2.00 136 185 100 119 167 90 69 NCO029726 NC Department of Correction Guilford Correctional Center WWTP 0.025 36% 34% 913 12.00 329 152 2.00 • • 52 NC0001384 Burlington Industries, Inc Williamsburg plant 0.025 48% 47% 913 12.00 438 152 2.00 72 NCO035866 County of Chatham Bynum WWTP 0.025 84% 76% 913 12.00 767 152 2.00 116 NCO065412 REA Enterprises, LLC Pleasant Ridge WWTP 0.0235 51% 45% 858 12.00 438 143 2.00 64 NCO046809 Pentecostal Holiness Church Pentecostal Holiness Church 0.020 46% 41% 731 12.00 336 122 2.00 50 NCO060259 Willow Oak Mobile Home Park Willow Oak Mobile Home Park 0.0175 51% 45% 639 12.00 326 107 2.00 48 NCO031607 Alamance-Burlington School System Western Alamance Middle School 0.015 64% 58% 548 12.00 351 91 2.00 1 53 NCO046019 E is opal Diocese of NorthCaCarolina The Summit WWTP 0.015 46% 41% 548 12.00 252 91 2.00 37 NCO045161 Alamance-Burlington School System Alta ma haw/Ossipee Elementary School 0.012 58% 49% 438 12.00 254 73 2.00 36 NC0045144 Alamance Burlington School System Western Alamance High School 0.0115 64% 58% 420 12.00 269 70 2.00 41 NCO038172 Guilford Couny Schools McLeansville Middle School WWTP 0.0113 36% 34% 413 12.00 149 69 2.00 23 NCO022098 Cedar Valley Communities LLC Cedar Valley WWTP 0.010 55% 52% 365 12.00 201 61 2.00 32 NCO045152 Alamance-Burlington School System Jordan Elementary School 0.0075 84% 76% 274 1 12.00 230 46 2.00 35 NCO055271 Shields Mobile Home Park Shields Mobile Home Park 0.006 64% 58% 219 _ _ _ _ 12.00 140 37 2.00 ry �21 NCO048241 Staley Hosiery Mills Staley Hosiery Mills _ 0.005 74% 65% 183 12.00 135 30 2.00 20 NCO038164 Guilford County Schools Nathanael Greene Elementary School WWTP 0.0045 75% 66% 164 _.._ 12.00 123 27 2.00 _ 18 NCO036994 Rockingham County Board of Education Monroeton Elementary School 0.0042 42% 38% 153 12.00 64 26 2.00 10 NCO066010 Rockingham County Board of Education Williamsburg Elementary School 0.004 51% 45% 146 � 12.00 _ 75 24 2.00 11 NCO045128 Alamance-Burlington School System S Ivan Elements School 0.003 84% 76% 110 12.00 92 18 2.00 14 96.74 1,569,542 1PS Alloc'n Ib r EOP 198,243 IPS Alloc'n Ill EOP 12.00 mg/ L TillIg Sm ( - 0.66 2.00 L TPr Lg_�-„ l / L TP Sm PS All Ill at Lake: 1 895,127 PS Alloc'n Ib r at Lake: 1 106,001 Ill Tip Ill 1 881,757 Ib/ r Sm: 13 370 Caki'd:redxn at Lake: 8.00/' Ib/yr 7p, Lg:: 104,004 Ill TP Sm: 1 1996 Calc'd redxm at:Lake: News & Record Name North Carolina, Guilford County Published by News & Record, Inc. Greensboro, North Carolina /:WWi17:V #1&0Q Before the undersigned, a Notary Public of said County and State, duly commissioned, qualified and authorized by law to administer oaths, personally appeared the Publisher's Representative who being first duly sworn, deposed and says: 1. That he/she is the Publisher's Representative of the Greensboro News & Record, Inc. a corporation, engaged in the publication of newspapers known as "News & Record", published, issued and entered as second class mail in the City of Greensboro in said County and State. 2. That he/she is authorized to make this affidavit and sworn statement; that the notice or other legal advertisement, a copy of which is attached hereto, was published in the News & Record on the dates listed below. 3. That the said newspaper (or newspapers) in which such notice, paper, document, or legal advertisement was published was, at the time of each and every such publication, a newspaper meeting all of the requirements and qualifications of Section 1-597 of the General Statutes of North C rolinA an was a alified newspaper within the meaning of Section 1-59-j of the General Statutes of North Carolina. Publisher's Representative��i �j�OTAR Y Sworn to and subscribed before me, this w day of = My Comm. Exp. — 6/15/2014 U; G)G AUBLIGwtuu/L 2� Notary Public /i/I/�C0v���` Ad # Date Edition Class PO NCDENR DWQ NPDES 33968650 09/04/10 News & Record 400 Jordan Lake Ad Copy PUBLIC NOTICESTATE OF NORTH CAROLIN Ad 0 33968650 j Date 09/02/2010 Time 12:24 PM PUBLIC NOTICE STATE OF NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION/ NPDES UNIT 1617 MAC SERVICE CENTER RALEIGH, NC 27699-1617 NOTIFICATION OF INTENT TO MODIFY NPDES WASTEWATER PERMITS IN THE JORDAN LAKE WATERSHED On the basis of through staff review and appIicaton of NC Gerip raIStatute 143,21, Public Law 92-500, and other lawfuIgardardsarid regulatiors,the North Carolina Environmental Cormrusion proposes to modify National Pollutant Discha��e EKmhation System (NPDR wastewater discharge permits to the ppeersons listed below effedhe 45 days fromthe publish date of this notice. The purpose of these modifEatons ls to set Total Phosphors discharge limits in accordance with the Jordan Lake Nutrient Managerrent StrateW. Wasteveter Discharge Requirements, T15A NCAC 026.0270. The four (,V affected facilities discharge treated v✓asteveater in the Jordan Lake watershed of the Cape Fear River Basin: NPDES Permit No. NCO047384 City of Greensboro - TZ Osborne VWVTP, discharging to South Buffalo Creek in Guilford County, NPDES Permit No NC0024325, City of Greensboro - North Buffalo Creek WWTP, dischargingto North Buffalo Creek in Guilford County, NPDES Perrrit No. NC0023868, City of Sudington - Eastside VWVTP, discharging to Haw River in Atamance County, NPDES Permit No NC0023876, City of Burtirgton-Southside WWTP, discharging to Big AJanance Creek in Aiamance County; Written comments regarding -the proposed permit will be accepted until 30 days after the pubish date of this notice. All comments receKed prior to that date are considered in the feat determinations regarding the proposed permits The Director of the NC Division of Water Quality nay decide to hold a public rreetng for the proposed pemits should the Divsion recene a significant degree of public interest. Copies of the draft permit and other supporting inforration on file used to determine conditions present in the draft permits are a✓ailabb upon request and payment of the costs of reproduction Man comments andror requests for information to the NC Division of Water Quality at the abose address or call Ms Dina Sprinkle at (919) 807-6304. Please include the NPDES permit number (attached) in anyconmunication Interested persons may also visit the Dvsion of Water Quality at 512 N. SalisburyStreet, Raleigh, NC 276041148 behwen the hours of 8fl0am and 5mpmto review iriormtiation on file. Ad shown is not actual print size NCDENR North Carolina Department of Environment and Natural Resources Division of Water Quality Beverly Eaves Perdue Coleen H. Sullins Governor Director October 1, 2009 Harold T. Owen, City Manager City of Burlington PO Box 1358 Burlington, North Carolina 27216-1358 Subject: Notification of Intent to Modify Dee Freeman Secretary NPDES Permits NCO023868 and NCO023876 to Incorporate Jordan Lake Nutrient Requirements Eastside and Southside WWTPs Alamance County Dear Mr. Owen: 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 facilities. Pursuant to Sub -Item (6)(d) of that rule, I am writing to notify you of (1) the nutrient allocations assigned to your facilities and (2) the Division of Water Quality's intent to modify the subject NPDES permits 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 the 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 facilities have 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 the City of Burlington are as follows: 1617 Mail Service Center, Raleigh, North Carolina 27699-1617 Location: 512 N. Salisbury St. Ralegh, North Carolina 27604 One Phone: 919-807-63001 FAX: 919-807-64921 Customer Service:1-877-623-6748 North Carolina Internet: www.ncwaterqualfty.org %�� /y+ // An Equal Opportunity 1 Affirmative Action Employer {/ ► atz L al Lff Harold T. Owen, City Manager Notification of Intent to Modify NPDES Permits NC0023868 and NC0023876 October 1, 2009 NC0023868 - Eastside WWTP NCO023868 Delivered Allocation (lb/yr) Transport Factor N Discharge Allocation (lb/yr) Total Nitrogen 148,670 77 193,078 Total Phosphorus 16,746 69 24,270 2001 Permitted Flow: 12 MGD NC0023876 - Southside WWTP NCO023876 Delivered Allocation (lb/yr) Transport Factor (%) Discharge Allocation (lb/yr) Total Nitrogen 154,463 80 193,078 Total Phosphorus 17,717 73 24,270 2001 Permitted Flow: 12 MGD 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 reports 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 Pa Harold T. Owen, City Manager Notification of Intent to Modify NPDES Permits NCO023868 and NCO023876 October 1, 2009 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. 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.templeton@ncdenr.gov. Sin ely, �Coleen H. Su ' s cc: Robert Patterson, Jr. - PO Box 1358, Burlington, NC 27216-1358 Winston-Salem Regional Office NDPES Files Central Files 3