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HomeMy WebLinkAboutNC0021920_Permit (Issuance)_20100112NPDES DOCUHENT SCANNING COVER SHEET NPDES Permit: NC0021920 Whiteville WWTP Document Type: Permit Issuance .ter Wasteload Allocation Authorization to Construct (AtC) Permit Modification Complete File - Historical Engineering Alternatives (EAA) Correspondence Owner Name Change 201 Facilities Plan Instream Assessment (67b) Speculative Limits Environmental Assessment (EA) Document Date: January 12, 2010 This document is printed on reuse paper - ignore any content on the reYerse side A'A NCDENR • North Carolina Department of Environment and Natural Resources Division of Water Quality Beverly Eaves Perdue Coleen H. Sullins Dee Freeman Governor Director Secretary January 12, 2010 Newlyn McCullen Whiteville WRF Superintendent P. O. Box 607 Whiteville, NC 28472 Subject: Issuance of Renewal NPDES Permit NC0021920 Whiteville WRF Columbus County Class IV Dear Mr. McCullen: Division personnel have reviewed and approved your application for renewal of the subject permit. Accordingly, we are forwarding the attached NPDES discharge permit. This permit is issued pursuant to the requirements of North Carolina General Statute 143-215.1 and the Memorandum of Agreement between North Carolina and the U.S. Environmental Protection Agency dated October 15, 2007 (or as subsequently amended). Summary of Changes in Renewal Permit from Existing Permit 1) Total Zinc Daily Limit has been reduced and a Monthly Average Limit added. Total Zinc has a chronic WQS, 50 pg/I, and an acute WQS, 67 pg/I. The applicable compliance limit was calculated and applied. 2) Total Copper monitoring has been reduced to quarterly. Total Copper is an action level toxicant and as such its measurement only needs to coincide with the chronic toxicity test sample. 3) Total Silver monitoring has been reduced to quarterly. Total Silver is an action level toxicant and bs such its measurement only needs to coincide with the chronic toxicity test sample. 4) A Toluene Monthly Average and Daily Limit with 2/monthly monitoring has been added. Toluene was detected and could potentially exceed chronic WQS. To be consistent with EPA guidelines a daily limit was defined. 5) A footnote narrative for TRC has been added. A narrative to clarify application and -measurement/reporting protocols was added to be consistent with Division standards. 6) A nitrite/nitrate nitrogen reporting has been added. To calculate the Total Nitrogen pollutant a nitrite/nitrate nitrogen measurement is required. Reporting was added to be consistent with Division standards. 7) A total kjeldah/ nitrogen reporting has been added. To calculate the Total Nitrogen pollutant a total Kjeldahl nitrogen measurement is required. Reporting was added to be consistent with Division standards. Page 1 of 2 1617 Mail Service Center, Raleigh, North Carolina 27699-1617 Location: 512 N. Salisbury St. Raleigh, North Carolina 27604 Phone: 919-807-63001 FAX: 919-807-64951 Customer Service:1-877.623-6748 Internet: http:l / h2o.state.nc.us / • An Equal opportunity 1 Affirmative Action Employer NorthCarolina i7Vatura!!y • 8) A Special Condition A. (6) has been added. Compliance concerns caused by out of service equipment systems has prompted the Division to clarify the compliance requirements, to define reporting protocols, and to require action plans. 9) A mercury daily maximum limit has been corrected. The previous daily mass -based limit was replaced with the correct concentration -based limit of 12 ng/L. 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 demand is made, this decision shall be final and binding. Please note that this permit is not transferable except after notice to the Division. 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 or permits required by the Division of Land Resources, the Coastal Area Management Act or any other federal or local governmental permits that may be required. If you have any questions concerning this permit, please contact Ron Berry at telephone number (919) 807-6396. Coleen H. Sullins Attachments Cc: Wilmington Regional Office/Surface Water Protection Section (email with revised fact sheet) EPA Region IV/Marshall Hyatt (email with revised fact sheet) Environmental Sciences Section/Aquatic Toxicology Unit/Susan Meadows (email) Central Files NPDES Unit Page 2 of 2 . Permit No. NC0021920 • 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 Whiteville is hereby authorized to discharge wastewater from a facility located at the Whiteville WRF 1000 Nolan Avenue Whiteville, NC Columbus County to receiving waters designated as Whith Marsh Swamp in the Lumber River Basin in accordance with effluent limitations, monitoring requirements, and other conditions set forth in Parts I, II, I11, and IV hereof. The permit shall become effective February 1, 2010. This permit and the authorization to discharge shall expire at midnight on August 31, 2014. Signed this day January 7, 2010. f//�4 f s. >% : Z •�� .�� Coleen H. Sullins, Director Division of Water Quality By Authority of the Environmental Management Commission Permit No. NC0021920 SUPPLEMENT TO PERMIT COVER SHEET All previous NPDES Permits issued to this facility, whether for operation or discharge, are hereby revoked. [ The exclusive authority to operate this facility arises under this permit. The authority to operate the facility under previously issued permits bearing this number is no longer effective.] The conditions, requirements, terms and provisions of this permit authorizing discharge under the NPDES govern discharges from this facility. • is hereby authorized to: The City of Whiteville 1. Continue to operate an existing 3.0 MGD wastewater treatment system that includes the following components: 0 Mechanical bar screen 0 Influent meter 0 Influent composite sampler 0 Grit removal 0 Influent pump station 0 Anerobic basin/distribution box 0 Two (2) 1.5 MGD treatment capacity anoxic/aeration basins 0 Two (2) flow distribution boxes 0 Three (3) clarifiers 0 Two (2) tertiary disc filters 0 Post aeration basin 0 Chlorination with chlorine contact chamber 0 Dechlorination 0 Effluent flow meter 0 Effluent composite sampler 0 One (1) 182,000 gallon aerobic sludge digester 0 One (1) 843,000 gallon sludge holding tank 0 Sludge truck loading station 0 Four (4) sludge holding basin/drying beds (out of service) 0 Polishing pond (out of service) 0 Standby power This facility is located at the Whiteville WRF in Whiteville, NC off Nolan Avenue in Columbus County. 2. Discharge from said treatment works via Outfall 001 into White Marsh Swamp, a Class C, Sw stream in the Lumber River Basin, at the location specified on the attached map. in Woods r' '(- • 1r J 4.- •-•- r Boles. •41,44-••r - -'.- - r'" 71. NCUU21920 Upstream Sa'rp!e -. 4.114. 410..- 11.0. • �r JIB.. r• 0.4116. • .fir, ._. _ - -" ' -• -fir-. .Ft "4111- �� .•.. .�i'• — — -•t AP" l 1tir .4111 ..,iW- -400 uC0021920� �` Discharge -Amiab LOWY -,�... i ..4r -w ".. 4- -40" .•,ail`.. "M�•- -iil m- - - .,�.,.. - -411 4•- .+41 ..- M.. .•4I1. NC0021920 Downstream Sample um- Lpyi ht ) 141ap*, h'l -Nk 1111.1. +r... P u 10.. 0 -w ..ram .... . _� r ...r «.. USGS Quad: J24SW Whiteville, NC Outfall Facility Latitude: 34° 19' 44" 34° 19' 41.3" Longitude: 78° 40' 41.3" Stream Class: C, Sw Subbasin: 03-07-58 Receiving Stream: White Marsh Swamp 78° 40' 47.7" Whiteville WRF NC0021920 Columbus County Permit NC0021920 A. (1) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS • Beginning on the effective date of this permit and lasting through the expiration date, 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 MONITROING REQUIREMENTS Monthly Average Weekly Average Daily Maximum Measurement Frequency Sample Type Sample Location 1 Flow 3.0 MGD Continuous Recording 1 or E BOD, 5-day, 20°C 2 (April 1- October 31) 5.0 mg/L 7.5 mg/L Daily Composite I & E BOD, 5-day, 20°C 2 (November 1- March 31) 10.0 mg/L 15.0 mg/L Daily Composite I & E Total Suspended Solids 2 (TSS) 30.0 mg/L 45.0 mg/L Daily Composite I & E Ammonia as Nitrogen (NH3-N) (April 1 - October 31) 1.8 mg/L 5.4 mg/L Daily Composite E Ammonia as Nitrogen (NH3-N) (November 1- March 31) 4.9 mg/L 14.7 mg/L Daily Composite E Total Residual Chlorine (TRC) 3 • 28 µg/L Daily Grab E Fecal Coliform (geometric mean) 200/100 ml 400/100 ml Daily Grab E Fecal Coliform (geometric mean) (June 1 - September 30) 3/Week Grab U, D Fecal Coliforrn (geometric mean) (October 1- May 31) Weekly Grab U, D Dissolved Oxygen (DO) Not less than 5.0 mg/L, daily average Daily Grab E Dissolved Oxygen, mg/L (DO) (June 1- September 30) 3/Week Grab U• D Dissolved Oxygen, mg/L (DO) (October 1- May 31) Weekly Grab U• D Temperature, °C Daily Grab E Temperature, °C (June 1- September 30) 3/Week Grab U, D Temperature, °C (October 1- May 31) Weekly Grab U, D Conductivity, µmhos/cm (June 1- September 30) 3/Week Grab U, D Conductivity, µmhos/cm (October 1- May 31) •Weekly Grab U, D pH Not more than 9.0 S.U. nor less than 6.0 S.U. Daily Grab E Oil and Grease 30.0 mg/L 60.0 mg/L Weekly Grab E Total Mercury (Method 1631 E) 0.012 µg/L 0.012 µg/L Weekly Composite E Total Zinc 100.5 µg/L 67.0 µg/L Weekly Composite E Toluene 22 µg/L 22 µg/L 2/Month Grab E Nitrite/Nitrate Nitrogen (NO2-N + NO3-N) Monthly Composite E Total Kjeldahl Nitrogen (TKN) Monthly Composite E Total Nitrogen, mg/L (TN) TN = (NO2-N + NO3-N) + TKN Monthly Calculated E Total Phosphorus, mg/L (TP) Monthly Composite E Total Copper, µg/I • Quarterly Composite E Total Silver, µg/L Quarterly Composite E Chronic Toxicity 4 Quarterly Composite E Pollutant Analysis S Annually Composite E FOOTNOTES on next.page) • Permit NC0021920 (Continue A. (1) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS) Footnotes: 1. I = Influent. E = Effluent. U = Upstream at U.S. 74/76. D = Downstream at railroad crossing. 2. The monthly average effluent BOD5 and TSS concentrations shall not exceed 15% of the respective influent value (i.e., 85% removal). 3. Total Residual Chlorine compliance is required for chlorine or chlorine derivative used for disinfection. The Division shall consider all effluent TRC values reported below 50 ug/I 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/I. 4. Chronic toxicity (Ceriodaphnia) at 50%; January, April, July, and October[ see Special Condition A. (3)]. 5. See Special Condition A. (4), Effluent Pollutant Scan. There shall be no discharge of floating solids or visible foam in other than trace amounts. A. (2) MERCURY REOPENER The Division may re -open this permit to require mercury load limitation changes, mercury minimization plans, and/or source water characterization following completion of the Phase 2 Mercury TMDLs for the Lumber and Waccamaw River watersheds. , Permit NC0021920 A. (3) CHRONIC TOXICITY PERMIT LIMIT (QRTRLY) The effluent discharge shall at no time exhibit observable inhibition of reproduction or significant mortality to Ceriodaphnia dubia at an effluent concentration of 50 %. 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, Apri/, 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. If reporting pass/fail results using the parameter code TGP3B, DWQ Form AT-1 (original) is sent to the below address. If reporting Chronic Value results using the parameter code THP3B, 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. If the Permittee monitors any pollutant more frequently then required by this permit, the results of such monitoring shall be included in the calculation & reporting of the data submitted on the DMR & all AT Forms submitted. 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 NC0021920 A. (4) EFFLUENT POLLUTANT SCAN The permittee shall perform Effluent Pollutant Scans for all parameters listed in the attached table (in accordance with 40 CFR Part 136). Samples shall be collected in different calendar years, approximately annually, except to provide seasonal variation. 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 (Method 1631E) P-chloro-m-creso 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 Chiorobenzene 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 The Permittee shall report test results within 90 days of sample collection to the Division in DWQ Form- DMR- PPA1 or other form approved by the Director (see NPDES Unit web site). The report shall be submitted to the following address: Division of Water Quality Water Quality Section / Central Files 1617 Mail Service Center Raleigh, North Carolina 27699-1617 Submittal of Priority Pollutant Analysis results with NPDES renewal applications will be required. Permit NC0021920 A. (5) HOLDING POND AND SULDGE HANDLING BASINS EVALUATION During the previous treatment plant upgrade two operational functions were removed from service. These removed functions, have contributed to permit violations and continue to be potential sources of surface water contamination. A holding pond was isolated from the treatment flow and is partially filled with sludge material and is separated by means of a wooden batter board dam reinforced with gravel from the post aeration basin. Four sludge handling basins are no longer used to collect sludge waste as all wasted sludge is diverted to the sludge digester and final sludge disposal. Some sludge residual remains in the basins and support piping is still available. Requirements: 1. The wastewater from these removed functions must be recycled to the appropriate point in the active treatment process. 2. Material from the holding pond cannot be allowed to enter the post aeration pond or otherwise overflow. A better designed isolation method is strongly recommended that: a. at a minimum equals the height of the bank separating the pond from the aeration basin and b. is impermeable to liquid seepage. 3. The sludge handling basins are abandoned and cannot be allowed to overflow to the surrounding area. It is strongly recommended that a documented method/practice be developed and utilized that mitigates an overflow event. 4. The overflow and/or release of material from the confines of the holding pond or sludge handling basins containment must be reported to the Wilmington Regional office the next business day during holidays/week ends or no later than 24 hours after an event during normal business hours Monday through Friday. 5. Develop and submit to: DENR/Division of Water Quality Surface Water Protection 127 Cardinal Drive Extension Wilmington, NC 28405 a. an action plan with defined action items, no later than 18 months from the effective date of this permit, for the removal of contaminated sludge from the holding pond and sludge handling basins and b. an action plan with defined action items, no later than 24 months from the effective date of this permit, for the permanent closure and decommissioning of the holding pond and sludge holding basins and c. a status report every 6 months, after the effective date of this permit and continuing until the holding pond and sludge holding basins are decommissioned. The report should include, but is not limited to, all completed actions, on going activities, and planned actions involving the holding pond and sludge holding basins. The action plans goal should be to complete decommissioning of the holding pond and sludge holding basin prior to the next permit renewal. Berry, Ron From: Hyatt.Marshall@epamail.epa.gov Sent: Wednesday, November 18, 2009 12:45 PM To: Berry, Ron Subject: re NC0021920, Whiteville WRF EPA has no comments on this draft permit. 1 AFFIDAVIT OF PUBLICATION NORTH CAROLINA Cumberland County Public Notice North Carolina Envir®men - tal Management Commission/NPDES Unit 1617 Mail Savior Center Raleigh, NC 27699-1617 Notice of Intent to Issue a NPDES Wastewater Penult The North Carolina Envlron - mental Management Com - mission proposes to issue a NPDES wastewater dis- charge permit to the petsan(s) listed belay. Written comments regarding the proposed permit will be accepted until 30 days after the publish date of this no- tice. The Director of the NC Division of Water Quality (DWQ) may hold a public hearing should time be a significant degese of public interest Please mail com - ments and/or Information re- quests to DWQ at the above address. Interested persons may visit the DWQ at 512 N. Salisbury Street, Raleigh, NC to review information on file. Additional information on NPDES permits and this no- tice may be found on our website: wwwncwaterquall - ttyy07.63orgg, 04or. by calling (919) 8 The City of Wbiteville re- q Nuested ewal of t C0021920renfor its teville WRF In Columbus County. This permitted discharge is treated domestic and Indus - trial wastewater to White Marsh Swamp in the Lumber River Basin. The Town of Chadboum re- quested renewal of permit NC0021865 for Its Chadbourne WW1P In Co- lumbus County. This petmlt - ted discharges is treated do- mestic wastewater to Souks Swamp in the limber River Basin. Written comments regarding the proposed permit will be accepted mail 30 days after the publish date of this no - tice. 1820760 %\I:c71:g.-.9:::' ''-°'.".7-.:: - v Before the undersigned, a Notary Public of said County and state, duly commissioned and authorized to administer oaths, affirmations, etc., personally appeared. CINDY L. OROZCO Who, being duly sworn or affirmed, according to law, doth depose and say that he/she is LEGAL SECRETARY of THE FAYETTEVILLE PUBLISHING COMPANY, a corporation organized and doing business under the Laws of the State of North Carolina, and publishing a newspaper known as the FAYETTEVILLE OBSERVER, in the City of Fayetteville, County and State aforesaid, and that as such he/she makes this affidavit; that he/she is familiar with the books, files and business of said Corporation and by reference to the files of said publication the attached advertisement of CL Legal Line PUBLIC NOTICE NORTH CAROLINA of NC DENR/DAQ/BUDGET OFFICE was inserted in the aforesaid newspaper in space, and on dates as follows: 11/7/2009 and at the time of such publication The Fayetteville Observer was a newspaper meeting all the requirements and qualifications prescribed by Sec. No. 1-597 G.S. of N.C. The above is correctly copied from the books and files of the aforesaid corporation and publication. nL LEGAL SECRETARY Title Cumberland County, North Carolina Sworn or affirmed to, and subscribed before me, this 9 day of November, A.D., 2009. In Testimony Whereof, I have hereunto set my hand and affixed my official seal, the day and year aforesaid. Kirsten E! Speer, Notary Public My commission expires 12th day of September, 2011. MAIL TO: NC DENR/DAQ/BUDGET OFFICE 1641 MAIL SERVICE CENTER, , RALEIGH, NC 27699-00001641 BEN E Spc� NOTARY U— ' • PUBLIC 0001820760 DENR/DWQ FACT SHEET FOR NPDES PERMIT DEVELOPMENT NPDES No. NC0021920 Revised 1/6/10 Facility Information Applicant/Facility Name: Whiteville Water Reclamation Facility(WRF) Applicant Address: City of Whiteville; P.O. Box 607; Whiteville, North Carolina 28472 Facility Address: 1000 Nola,n Ave; Whiteville, North Carolina 28472 . Permitted Flow 3.0 MGD Type of Waste: Domestic/industrial Facility/Permit Status: Class IV /Active; Renewal County: Columbus County Miscellaneous Receiving Stream: White Marsh Swamp Stream Classification: C, Sw Subbasin: 03-07-58 Index No. 15-4a Drainage Area (mi2): 201 303(d) Listed? No (TMDL 2000) Summer 7Q10 (cfs) 4.7 Regional Office: Wilmington Winter 7Q10 (cfs): 9.1 State Grid / USGS Quad: J24SW Whiteville, NC 30Q2 (cfs) 10 Permit Writer: Ron Berry Average Flow (cfs): 201 Date: 11/3/09 IWC (%): 50% Revised: RDB 1/6/10 BACKGROUND The Town of Whiteville operates a 3.0 MGD wastewater treatment facility that serves the Whiteville community approximately population 7,800. The Water Reclamation facility discharges treated 100% domestic wastewater to White Marsh Swamp, a class C, Sw water in the Lumber River Basin. Currently, the Columbus Regional Healthcare System is the only potential industrial source discharging influent to the treatment plant. Untreated domestic/industrial waste is introduced to the plant headworks via a forced sewer main. The headworks consist of a bar screen, grit removal, an influent composite sampler, an influent wet well, and influent transfer pumps. The transfer pumps feed the BNR anarobic cell. Flow gates are used to establish the flow from the anarobic to the two (2) treatment trains anoxic zones. From the zones the flow continues to the two trains aeration basins. An adjustable overflow weir diverts flow from each basin to a collection box that then flows to flow distribution boxes. Automatic controls monitor the DO level and operate the basins air and mechanical inputs. The two distribution boxes are used to establish flow by means of adjustable weirs to the three (3) clarifiers. The clarified liquid continues to a dual tertiary disc filter system. Filter backwash is recycled. The filtered liquid enters the post aeration basin. From the post aeration basin the liquid continues to the chlorination basin, the effluent flow meter, and effluent channel. Immediately downstream from the meter dechlorination is applied followed by collection of the effluent composite sample. A pipe conveys the treated waste water a short distance to White Marsh Swamp adjacent to the facility property. The transferred WAS from the clarifiers collects in a distribution box where adjustable weirs are used to divert the solids to either the headworks wet well for recycling or to the aerobic sludge digester or sludge holding tank. Blowers are available to provide aeration to both the sludge digester and sludge holding tank. Liquid is decanted from either sludge tank to thicken the sludge. A transfer pump provides sludge to the sludge load out station. Currently, there are four drying beds which are not used and are considered surplus. A. retention pond that was part of the previous treatment process, has been isolated from its Fact Sheet NPDES NCO()21920 Page 1 of 5 service function, but is full of sludge, and has a wooden batter board scheme isolating it from the existing post aeration pond. Future plans for removal of the drying beds and elimination of the retention pond are unknown. The regional office is very concern about how well the existing isolation structure will keep material from the retention pond out of the effluent discharge. HISTORY A TMDL was completed in 2000 for mercury. A mercury mass limit was imposed and a reopener special condition added to the previous permit. These actions were consistent with the TMDL. An Authorization to Construct an upgraded treatment facility with no increase in capacity was approved in July 2006, a modification was approved in February 2007. The construction was completed and the upgraded treatment system in service 2008. The permittee initially filled the new facility oxidation basins with the sludge from the old retired plant. Unfortunately, significant concentration levels of contaminates and toxicants such as mercury were in the sludge and continue to cause compliance issues. On February 2009 the EPA sent a Notice of Violation to the City of Whiteville for effluent violations of BOD, TSS, TRC, mercury, and total zinc limits during the period from November 2005 through June 2009. In September 2009 the EPA issued a Section 308/309 letter, administrative order CWA-04-2009-4810, to the City of Whiteville for required actions for total mercury evaluation and compliance obtainment. COMPLIANCE VIOLAT)ONS The facility has a total of 26 compliance violations for TSS, BOD and Fecal Coliform beginning in 2004. In addition the facility has a total of 79 mercury compliance violations and 10 zinc compliance violations. Since the last zinc compliance issue in September 2007 the monitoring data indicates a significant shift to maintain zinc concentrations below the compliance limit. Fines of $25,880 were accessed. PERMITTING STRATEGY Reasonable Potential Analysis (RPA) The Division conducted EPA -recommended analyses to determine the reasonable potential for toxicants to be discharged by this facility, based on DMR data (effluent and PERCS) from January 2007 to February 2009 and from the 3 PPA submitted with the renewal application. Evaluations were conducted for arsenic, beryllium, cadmium, chromium, copper, cyanide, chloroform, lead, mercury, molybdenum, nickel, thallium, selenium, silver, zinc, bromodichloromethane, and toluene. Results suggest reasonable potential for the facility to discharge copper, silver, and zinc in excess of prevailing WQS. However, copper, silver, and zinc are action level toxicants. The facility has only two toxicity test failures out of the twenty five tests conducted since October 2004. Copper and silver are currently not limited and will have their monitoring frequency reduced to quarterly to coincide with the required chronic toxicity test. The Division may reopen the permit to address any future toxicity issues and impose the appropriate limits. The current permit has a zinc limit based on pre-2004 WQS. The current zinc WQS is more stringent and will be applied in this permit including the addition of a daily (acute) limit for zinc. Mercury under the current permit has both a mass based and concentration based limit. Mercury compliance has been an issue. Because this portion of the Lumber River continues to be impaired for total mercury, no IWC is applicable. The source of the mercury is most likely the sludge in the aeration basins. The permittee is adjusting the plant operation to maximize sludge removal and is also addressing the EPA administrative order. The current . It has been determined that the daily mercury mass -based limit is not supported by the most recent. Division basin evaluation, and is considered Incorrect. As a technical correction and to be consistent with EPA policy a mercury daily concentration - based daily limit of 12 ng/L will replace the Incorrect limit. The existing concentration -based mercury monthly average limit will remain. Fact Sheet NPDES NC002I92() Page 2 of 5 With only three data points, one above the detection limit, a RPA for toluene indicates. a reasonable potential for the facility to discharge toluene above its WQS. Consequently, toluene limits and monitoring were added to this permit. The dual limits were incorporated to comply with EPA guidelines. Twice a month monitoring was applied, BPJ. Data review DMRs were reviewed for the period of May 2006 to April 2008. DMR data is summarized in Table I below: Table I Flow (MGD) Dissolved Oxygen (mg/L) BOD (mg/L) TSS (mg/L) NH3-N ,(mg/I) Fecal Coliform (#//I00 ml) Total Residual Chlorine (mg/I) Average 0.814 6.5 4.5 3.1 0.59 25.2 0.12 Maximum 2.490 11.9 10.5 20.3 10.58 316.0 0.20 Minimum 0.224 5.0 2.1 < 1 < 0.1 2.0 0.01 Percent Removal: Based on BOD 95.6%-97.8%, Based on TSS 95.2% - 99.1% Whole Effluent Toxicity The permit requires quarterly chronic toxicity testing using pimephales prome/as, at 50% effluent concentration. The facility passed 23 out of the 25 toxicity tests submitted since October 2004 (including second species tests. Will continue quarterly chronic toxicity testing. Priority Pollutant Analysis The results of 3 PPA were submitted with the permit renewal application. See RPA Analysis for results. Will continue to required submittal of PPA annually. Instream Impact Temperarture, conductivity, dissolved oxygen , and fecal coliform are measured routinely at designated points upstream and downstream from the discharge into White Marsh Swamp Creek. The January 2007 through February 2009 monthly averages were reviewed and also compared to any matching monthly average effluent data. The stream data indicates that the conductivity, dissolved oxygen, and fecal coliform levels increased downstream from the outfall while temperature decreased. Will continue instream monitoring program. Effluent Limitations and Monitoring Requirements BOD BOD is a primary pollutant parameter for domestic waste effluent. BOD limits are WQS based, BOD monitoring/limits and minimum 85% removal criteria will continue. TSS TSS is a primary pollutant parameter for domestic waste effluent. TSS limits are based on secondary treatment standards. TSS monitoring/limits and minimum 85% removal criteria will continue. The pH is a primary pollutant parameter for domestic waste effluent. The pH limit range is based on secondary treatment standards. The pH monitoring/limit range will continue. Dissolved oxygen DO is a parameter of concern and its limit based on WQS. The DO monitoring/limit will continue. Seasonal upstream and downstream monitoring will continue. Fecal coliform Fecal coliform is a primary pollutant parameter for domestic waste effluent. Fecal coliform limits are based on secondary treatment standards. Fecal coliform monitoring/limits will continue. Seasonal upstream and downstream monitoring will continue. Fact Sheet NPDES NC002I920 Page 3of5 Ammonia as nitrogen • The Division had determined that seasonal ammonia as nitrogen limits were required. An IWC calculation was conducted and the seasonal limits will be revised to match current guidelines. Total Mercury The Division had determined that total mercury was a metal toxicant of concern in this facility effluent. Evaluation of reported mercury values shows historical EaRtintied compliance violations. To comply with the Lumber River impairment TA'1"e DL and WQS the concentration -based and maw limits will be applied as a daily maximum and monthly average maximum continuo. The concentration -based daily limit will replace the mass - based daily limit. Currently the facility is under an Administrative Order from the EPA. Total Zinc The Division had determined that total zinc was a metal toxicant of concern in this facility effluent. The current WQS standard was applied and new compliance limits calculated. Total zinc monitoring with revised limits will continue. Toluene The Division has determined that toluene has the potential to be present in the effluent and exceed the chronic WQS. A monthly average limit was calculated and imposed. To be consistent with EPA guidelines a daily limit equal to the calculated limit was also imposed. Monitoring 2/monthly will be required. Oil & 'Grease The Division had determined that oil & grease limits were required. Oil & grease monitoring/limits will continue. TRC TRC is a primary toxicant in effluents with chlorine based disinfection and is limited by WQS. The IWC calculation confirmed the compliance limit, monitoring/limit will continue. The Division recognizes the measurement concerns with the available TRC test method and has added narrative to define measurement and data reporting protocols. Chronic Toxicity To stay in compliance with Division standards quarterly toxicity monitoring/limit will continue. Effluent Monitoring Requirements Total Copper Total copper is a toxicant of interest, action level parameter, but does not indicate an immediate concern. Will continue to monitor to assist in quarterly chronic toxicity test evaluation. Total Silver Total silver is a toxicant of interest, action level parameter, but does not indicate an immediate concern. Will continue monitor to assist in quarterly chronic toxicity test evaluation. Total Nitrogen, Nitrite/Nitrate Nitrogen, Total Kieldahl Nitrogen Total Nitrogen, TN = (NO2-N + NO3-N) + TKN, is a calculated nutrient of interest and meets the Lumber River nutrient strategy, reporting will continue. The TN measured components, (NO2-N + NO3-N) and TKN, monitoring/reporting will be added. Total Phosphorus Total Phosphorus is a nutrient of interest and meets the Lumber River nutrient strategy, monitoring will continue. • Fact Shout NPDES NCO(.►? I92() Page 4 of 5 Temperature Temperature is a parameter of interest, monitoring will continue, Seasonal upstream and downstream monitoring will continue. Conductivity Conductivity is a parameter of interest, seasonal upstream and downstream monitoring will continue. PPA PPA annual monitoring will continue. A special condition lists the required analysis and alerts the permittee that the appropriate annual analysis must be attached with the next NPDES renewal application. Special Condition Requirements Mercury Reopener condition will remain. Holding pond and sludge drying beds evaluation and retirement study narrative will be added. Special condition for mercury mass calculation narrative will be removed as it is not required. SUMMARY OF PROPOSED CHANGES In keeping with Division policies the following will be incorporated into the permit: • Effluent limits were revised (more stringent) for total zinc. A monthly average limit was added. • Effluent monitoring for total copper was reduced to quarterly to coincide with chronic toxicity test. • Effluent monitoring for total silver was reduced to quarterly to coincide with chronic toxicity test. • Effluent limits and monitoring for toluene were added. • A footnote narrative was added for TRC. • Reporting of nitrite/nitrate as nitrogen measured values used in the TN calculation was added. • Reporting of total kjeldahl nitrogen measured values used in the TN calculation was added. • A Special Condition requiring the permittee to conduct a study and action plan for elimination of surface water issues from the isolated holding pond and sludge beds was added. • Effluent daily maximum limit for mercury was corrected. PROPOSED SCHEDULE FOR PERMIT ISSUANCE Draft Permit to Public Notice: November 4, 2009 Permit Scheduled to Issue: January 20100cccmbcr 200g NPDES DIVISION CONTACT If you have questions regarding any of the above information or on the attached permit, please contact Ron Berry at (919) 807-6396 or email ron.berry@ncdenr.gov.c NAME: DATE: I/11 ( O r 111 REGIONAL OFFICE COMMENTS NAME: DATE: SUPERVISOR: DATE: I \ri J{ :, `,( lu `1" 11 I.. 0,5 NPDES/Aquifer Protection Permitting Unit Pretreatment Information Request Form PERMIT WRITER COMPLETES THIS PART: PERMIT WRITERS - AFTER you pet this form . back from PERCS: Check all that apply - Notify PERCS if LTMP/STMP data we said should Date of Request 8/4/2009 municipal renewal x be on DMRs is not really there, so we can get it for Requestor Ron Berrry new industries you (or NOV POTW). Facility Name Whiteville 11W TP WWTP expansion - Notify PERCS if you want us to keep a specific Permit Number NC0021920 Speculative limits POC in LTMP/STMP so you will have data for next Region Wilmington stream redass. permit renewal. Email PERCS draft fact sheet, RPA. Basin Lumber stream relocation permit, - Send PERCS paper copy of permit (w/o NPDES 7Q10 change boilerplate), cover letter, final fact sheet. Email RPA other if changes. other check a plicable PERCS staff: Other Comments to PERCS: CPF - TBA (to Dana in mean time) New plant, only operational 6-8 months. X CTB, CHO, LUM, NEU, ROA - Dana Folley (523) Issues I know of: fill BRD, FRB, NEU - Monit Hassan (371) 1) High mercury, used source is sludge sludge from retired plant to new plant, mercury HIW, LTN, TAR, YAD - Tom Ascenzo (526) 2) Abandoned pond not fullly secured 3) Abandoned drying beds still in service PERCS Status of PRETREATMENT STAFF COMPLETES THIS PART: Pretreatment Program (check all that apply) 1) facility has no SIU's, does have Division approved Pretreatment Program that is INACTIVE 2) facility has no SIU's, does not have Division approved Pretreatment Program I. 3) facility has SlUs and DWQ approved Pretreatment Program (list "DEV" if program still under development) V 3a) Full Program with LTMP 3 3b) Modified Program with STMP 4 4) additional conditions regarding Pretreatment attached or listed below STMP time fr e• f A os ece t: Flow, MGD Permitted Actual Time period for Actual xt Cyc . Industrial d . ! 1 0.07- 03-0. poT1.) di f7 i1,,�, Uncontrollable n/a 1. Z4o Q 3 - D n �� �` ' , POC in LIMP/ STMP Parameter of Concem (POC) Check List POC due to NPDES/ Non- Disch Permit Limit Required by EPA* Required by 503 Sludge** POC due to Sill*** POTW POC (Explain below)•'•" STMP Effluent Freq LTMP Effluent Fre / g00�S • "I' AG '/ BOD V V4 J '/ TSS ✓ V 4 Q M Q = Quarterly uYdQ V NH3 v 4 Q M M = Monthly VArsenic V 4 Q M // ''J;L d . i�W J Cadmium �l 4 Q M r--. ( 4Chromium -_: 4 4 Q M d Copper 4 / 4 Q M � i& J22 Op b(�c-a,)._"td =) V Cyanide 4 Q,M all data on D Rs? 4 Lead •ki V 4 Q M YES V Mercury ✓ V 4 Q M NO (attach a a) V Molybdenum v 4 Q M 4 Nickel:' 4 V 4 Q M v Silver ✓ 4 Q M ✓ Selenium ✓ 4 Q M 4 Zinc ✓ 4 ✓ 4 \Q, M data in spreadsheet? Total Nitrogen 4 Q M YES (email to writer) Phosphorus 4 Q M NOI V o-{-G ✓ V 4 OW 4 Q M CC l _" 4 Q M �1,•, y ip t'b ; " 4 Q M 14)4,4- Lk)/ to *Always in the LTMP/STMP ' "• Only in LTMP/STMP while •' Only in LTMP/STMP if sludge land app or composte (dif POCs for incinerators) ti, j NI SIU still discharges to POTW ""'• Only in LTMP/STMP when pollutant is still of concern to POTW Comments to Permit Writer (ex., explanation ofPOCs: infoyou have on IU related investigations into NPDES problems): ,any — POTI4) n ofi 1-0fkGU e CN in L' j°- Go i,. (d ke od oft- ov l -h m e u ,� v — POTW Oe S l' e 04-6-- I o ✓l ((k — r i ) LA- ,sed: July 24, 2007 +0 _. f .-6,1/4 kCr cl ' 0 l„1-- 0 ÷ V- 1 ' ► l F Berry, Ron From: Newlyn McCullen [nmccullen@ci.whiteville.nc.us] Sent: Tuesday, November 10, 2009 3:25 PM To: Berry, Ron Subject: NPDES Permit NC0021920 Draft Mr. Berry: I have been reviewing the Permit Draft for the City of Whiteville which was received on November 9,2009. One of the concerns I have is regarding the Mercury Mass Loading Limit of 0.004g/d. As you are aware, the Whiteville Water Reclamation Plant has not been able to meet the limit of 0.004g/d since analyzing the effluent by Method 1631. The only way the treatment plant can meet that limit is to have non detection for the entire month. The City of Whiteville was under the assumption that the limit of 0.004g/d would be adjusted according to the Phase 2 Mercury TMDLs for the Lumber and Waccamaw River watersheds. Would you please look into this and inform me of your findings before the final permit is issued to the City of Whiteville. Thanks for your cooperation with this matter. Newlyn McCullen City of Whiteville WWRF Plant Superintendent/Pretreatment Director w-(910)642-5818 C-(910)840-5972 5-(20,2,e_ 2% 1 REASONABLE POTENTIAL ANALYSIS Whitem h`WWTP NC0021920 Time Period 2007- 2009 Qw (MGD) 3 7Q10S(cis) 4.7 7Q10W (cfs) 9.1 3002 (cis) 10 Avg. Stream Flow, QA (cis) 201 Rec'ving Stream Whitemarsh Swamp WWTP Class IV (WC (%) @ 7010S 49.733 @ 7Q10W 33.818 @ 3002 31.741 @ QA 2.2611 Stream Class C, SW Outfall 001 Qw = 3 MGD PARAMETER TYPE t9 STANDARDS & CRITERIA (2) PQL Units REASONABLE POTENTIAL RESULTS RECOMMENDED ACTION NC WOSJ Si FAVJ Monk Acut. n II De. ils: Po.d al. A11owa6N Cr „o, o.ncri„w,.e. ..r. C 17 ug/L 3 2 Note: n<12 Limited data 40.4 set Acute: N/A ^Chronic: 752 No RPA exceedence No further action required Toluene NC 11.0 ug/L 3 1 Note: n<12 Limited data 114.E set Acute: WA _ ____ _ Chronic 22 _ _ _ _ _ _ _ _ _ _ _ _ _ ____ RPA exceedence, add monthly avg limit = 22 pgll Per EPA add daily limit = 22 pgil 0 0 N/A Acute: WA Chronic: WA 0 0 NIA Acute: N/A Chronic: N/A 0 0 N/A Acute: N/A Chronic: WA 0 0 WA Acute: N/A Chronic: N/A ______ ____ 0 0 NIA Acute: N/A Chronic: Error@Type --_—•—-•—_—•-------------- 0 0 N/A Acute: N/A _ Chronic: N/A ------•—•—•—•----•—--------- 0 0 WA Acute: N/A ^_ _ Chronic: WA _ _____.—___—_—______________. 0 0 WA Acute: WA Chronic: NIA 0 0 WA Acute: N/A _-----.----------- — Chronic: N/A 0 0 WA Acute: N/A _ Chronic:• NIA '---------•---- ---------- 0 0 NIA Acute: WA -Chronic: Error © Type -- — ------ 0 0 WA Acute: WA _ Chmnic: WA 0 0 WA Acute: N/A Chronic: WA 'Legend: C = Carcinogenic NC = Non -carcinogenic A = Aesthetic " Freshwater Discharge RPA2, rpa 10123/2009 REASONABLE POTENTIAL ANALYSIS Whitemarsh WWTP NC0021920 Time Period 2007- 2009 Qw (MGD) 3 7Q10S (cfs) 4.7 7Q10W (cfs) 9.1 3002 (cfs) 10 Avg. Stream Flow, CIA (cfs) 201 Reeving Stream Whitemarsh Swamp WWTP Class IV IWC (%) (a3 7Q10S 49.733 Q 7Q10W 33.818 30Q2 31.741 OA 2.2611 Stream Class C, Sw Outfall 001 Qw = 3 MGD PARAMETER TYPE (1) STANDARDS & CRITERIA (2) PQL Units REASONABLE POTENTIAL RESULTS RECOMMENDED ACTION NC WQS/ KFAY/ Chronic Amt. n ID.. UaProd CW Allowable Cw Arsenic C 50 ug/L 15 0 2.5 Acute: WA Chronic: 2,211 M 8 °s q xs I�oRPA.exceod0 Cp i ! NofyrtheraCISiin:equlrod ?• Beryllium C 6.5 uglL 3 0 Note: n<12 Limited data 0.5 set Acute: WA Chronic: 287 - 4 ' ° , , . No RPA exceedence 2. • No further action required Cadmium NC 2 15 uglL 15 0 0.5 Acute: 15 Chronic: 4 No RPA: exceedence . - . No fiirther action:lequired No RPA exceecta o No further action 'required • Chromium NC 50 1,022 i . ug/L 15 ' 0 1 2.5 -_r Acute: 1,022 _-_--_ • Chronic: 101 No RPAexcoode ca Nofurtheraction roqutred No RPA exceedeco !i No further action':mquired Copper . N 1 1 7. Al. 703 i , i ug/L 52 50 '175.1 Acute: n . 703 _ Chronic: 14 l `,EERP ieces� QS,acute, no further action Passing`WET reduco monitoring to quarterly AL, RPA exceeds WQS'chroni : , no further action : Passing:WET. reduce monitoring to"quarterly ': Cyanide NC 5 N 22 . 10 ug/L 15 0 .. 5.0 . i , c , , Acute: 22 ,chronic: 10 No RPA;,e 04, No further action r rind - No RPA Bxce ' h.. NO further action' requfrod Chloroform C 170 + ug/L 3 1 Note: n<12 Limited data , , , r 48.0,, set Acute: N/A Chronic: 7,518 • } '< NdRPA exceedence No further action required :• Lead NC .• 25 N :. 33.8 _.- ..., ;` t:. ug/L 15 1 tr -,_ .-- 17.7 ;a. r. L. �--~_ S0 -� St' _ A. tat �rtherad�ion Iced..;`. NoRPA'exceed ce ` r i> No`hrtheraction required' . - . - . Mercury Impaired IWC=100% _.. NC - -- -• - --• 12 Mass Limit = 0.004 g/day 2.0000 nglL -- -- - 105 105 --- - - 35.1190 IWC -Acute: • NIA • - _ . - _ _ Chronic . 12 = 509( 24 :• .. : .,,, _• . 4. Rdgs.abovetin - -.;. andconc.limits . Add Monthly avg Omit a 12 vg/I per EPA . .. . Mot Y bdenum NC ---- - . --- 3,500 __-- • - ug/L - �_ _ 12 • 0 .---_ _ 5.0 _Acute: . • WA '- �_ r` �' -Chronic: 7,038 .. :� `" No RPA rN• o furrtheaction'equired . Nickel NC _ _ _ . _ _ . _. 88 281 . _ _ - .. ug/L .. _ _.. _-. 15 0 - _ -. _ -• _ 5.0 • _ Acute:. . 261 . Chronic: 177 _ _,, ,c. No RPA exceedenr u < , No furtheraction required - NoRP,Aoxcood - - - Nofug:AK:fonrequ,nd . Thallium .•- NC ----- ------ 0.47 •-• -- - --- --- -•- 3 0 -- --- - 0.50 Acute:.... NIA._. _ Chronic: • 0.95 u = :..'fur • No Aexceedenee - �- - - No turiher action required Selenium NC 5.0 56 ug/L 15 0 5.0 -Acute:-... 5. _ _ -• 1_ Chronic: 0 7 No exceeds },� > i 70:13-, No er Bac on required ; No RPA exce (r1 w ,' , *" . No further action required Silver NC - . 0.06 AL 1.23 ug/L --- -- 52 49 ., - - - - 28.8 "Acute: •-•1.23 • ' _ Chronic: • 0.121 AL, RPAexc eeda,WQS•ecuto,'no further action Passing WET; educe monitoring to quarterly A A e WQS chronic , no further action P ng WET rice monitoring to quarterly. - ;Inc DailyConc. • - •- NC Limit = - - - - - -- - • - - - 50 AL 67 222.0K;nnt {rgll (WOS =111 ug/I) - - ug/L 106 106 - 444.4 - Acute: --» 67.0 . • ' -Chronic: -; 00.5 ,Last Al. RkAexcneds current.Y1WQS acute, apply rraw runic -- Last 9 menthe rdg below WQS, sheen 2005 failed one WET AL RPA oxcc ds current W. Qs chronic, apply new limit - I ' - `� 9 ireonths rig beksiiv WQS, since 2005 failed oneWt:T ` •Legend: I,- • C = Carcinogenic NC = Non -carcinogenic A = Aesthetic • . "Freshwater Discharge ?1 . (:: c,n,( J,. RPA, rpa 12/17/2009 10/23/2009 IWC Calculations NC0021920 Prepared By: RDB Assume upstream TRC level = 0 Assume upstream Fecal level = 0 Check Box if WTP Facility ❑ Enter Design Flow (MGD): Enter s7Q10(cfs): Enter w7Q10 (cfs): 3.000 4.700 9.100 Enter Upstream NH3-N Level (mg/L): 0.220 Total Residual Chlorine 7Q10 (CFS) DESIGN FLOW (MGD) DESIGN FLOW (CFS) STREAM STD (UG/L) UPS BACKGROUND LEVEL (l IWC (%) Allowable Conc. (ug/I) Fecal Limit (If DF >331; Monitor) (If DF <331; Limit) Dilution Factor (DF) NPDES Servor/Current Versions/IWC Ammonia (NH3 as N) (summer) 4.7 7Q10 (CFS) 3 DESIGN FLOW (MGD) 4.65 DESIGN FLOW (CFS) 17.0 STREAM STD (MG/L) 0 UPS BACKGROUND LEVEL (I 49.73 IWC (%) 28 Allowable Conc. (mg/I)* WEEKLY AVG LIMIT (mg/I) 200/100m1 2.01 Ammonia (NH3 as N) (winter) 7Q10 (CFS) DESIGN FLOW (MGD) DESIGN FLOW (CFS) STREAM STD (MG/L) UPS BACKGROUND LEVEL (I IWC (%) Allowable Conc. (mg/I)* WEEKLY AVG LIMIT (mg/I) * MONTHLY AVG LIMIT 4.7 3 4.65 1.0 0.220 49.73 1.8 5.4 9.1 3 4.65 1.8 0.220 33.82 4.9 14.7 Limit MAX 35.0 mg/L NON-POTW 1.8 8.9 (MONTHLY/DAILY) NON-POTW 4.9 24.5 (MONTHLY/DAILY) 10/23/2009 Date: 10/22/09 DMR Data NC0021920 Whitemarsh WRF 14 12 10 8 6 00 E 4 2 0 ® Upstream DO 0 Downstream DO -Effluent DO n n n I, I, n n n N. t� r n 00 00 00 00 00 00 00 00 00 CO CO CO rn c+ 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 .6 u >- c d0 a > u 6 C. L L �• c 3 ca o u > u c .a 03 u g< 2; < in o Z c; u. 2< g ' < O z o LL Upstream Conductivity ❑ Downstream Conductivity 1000 900 13 800 ❑- 700 600 . ®� ® 8 ¢ E 500--0--©- ❑ 'Et -p- U 2 400 fa _0 -p 6. 300 0 Tr❑ 200 n ♦- 0 100-*-1--,�--•--- ® •--®- O 4--d- -- --iii---fil- 0 n N. N. n n n b N N n n n 00 CO 00 00 00 00 00 00 00 00 00 00 a ci O O O O O O O O O O O O O O O 90,90)0999999 _ env • =. m 7 iV O 0) ero G) ra ▪ G ev 3 dJ 0 > ate) • tea) g a - a V) O Z o u_ 2 a 2" < tn O z a"u- $4sfn dtis mi413 t 4-1, C, Date: 10/22/09 0021920 WRF t 30 25 20 • Upstream Temperature o Downstream Temperature Effluent Temperature 15 T 10 �� 5 0 n N N N. N N. N N n N N. N. co 0o o0 00 00 O O O O O O O O O O O O O 09 O O s0 - +'- >. C 3 ao a 6 > u C .b �. >. -co , u g a g� a V) o Z CO co LL 2 a 2 0 CO 00 00 O09 0 CO 0 0 C = do a.t > u C .n '' < u O 0 0 ; U. 2500 2000 1500 E § 1000 500 0 • Upstream Fecal Coliform 0 Downstream Fecal Coliform Effluent Fecal Coliform • 000000 C .6 - ? C -, 2 a 2 -, O S 0 00 L1 0 a d II N NCO0000CO0000COCOCOCOCO000,0, O O O O O O O O O O O O O O O O O CD C .� i C OD O. O. C C .a O Z O u�. a g - < sr) O Z O �i Sys�� dhi wlac-1 ii—igoe046i Date:4/17/09 pb: rdb 40.0 35.0 30.0 25.0 -o)) 20.0 - 0 E 15.0 - O 0 10.0 0 0 0 0 0 0 O 5.0 0 _ O O O O O O O O Data NC0021920 WWTP oTN Rdg 0.0 0 n n n n n n n n n n n n Oo 00oo co CO co co 00 CO CO CO CO 0) o) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 c a > c 5 m a • > b 6 .n m n >. c - 0 n. ▪ > b c a -�i LL Q m a) O o N - li Q03 0 Q cn O 0 0 -) ii Q U) Z 90.0 80.0 70.0 60.0 50.0 J 40.0 30.0 20.0 10.0 0.0 0 O O 0 0000 000 Q 00 0 0 0 oCopper Rdg 0 0 0 O O 00 0 0 000 0 . 0 0000 0 000 00 0 0 0 00 0 n n n n >, n n n co c0 Co c0 a co co co a) a) 9 9 9 9 ") O O m N 9 N O O 9 0 0 O O jl N 9 oO o o o 03 ao m a c > > Q CO • Z O C `% n 2 66 Q w v Z 0 m a�i -) LL 2 Q 0 -> LL Q -' 0 -' LL 18.0 - 16.0 - 14.0 12.0 10.0 J a) 8.0 6.0 4.0 2.0 0.0 O *Silver Rdg O 0 00000000 0000 000 00 0000 00000000 000000 0000 00 00 00 I-- n n n >, n r- n co op co co >. co co co rn 0 o 0 o «3 o o aai 0 0 0) 0 0 0 o m 0 0 g 9 o a0i 0 c @ a c m < U) i-3 Z 0 c n ra a c 5 < U) � Z 0 c co LL g Q -) 000 CO u_ 2 Q -) ' O ^ Date:4/16/09 DMR DaboNCO021920 WhitynlarmhWVVTP , 0 NH3-N Weekly Avg a wn3-*Monthly Avg umu MaxLimit -WwomyMm -Monthly 1* 12 ----' ------ -------- 10 8 ....... .... ........................ 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Appem.—. xevy Ap.ouon 6Av Aitnuon =moo 0 BAV Alleam unoilico leced o 0009 000L... licun xen win 1200d d1MM OM ZOO qpi :qd. • 60/9 1./i7:eleCI Date:4/15/09 pb: rdb • DMR Data NC0021920 Whitemarsh WWTP 0 Flow Rdg • • Flow Monthly Avg 5.000----__._.___._ 4.500 4.000 —Permitted Flow ............._...._._._._.___.____.___._.____..-_-----__-__ _ _ _ _ .__._.____._._.._....._._._..._.._............___._._._.__....._.... .____....__._._._.___.____._._._..._..._..............__........_._....._.__. _..._.__............_....._....... _- _---_._........._._......._._._......._..........._._._.. - - ...0_....._.. - 3.500 a 3.000 O • 0 2.000 1.500 O 00 $ O __.-_ . O.___ __._......... _._...___._..._._._.__ 0 0. •O O :.•.-O O O O 4• ! ' +___._.-._..__-......._____.._.__..._.._..._..........._.__-._...._.._._.._._....._.._._-___....._ .__...._ 0 .. +, . •_.......__._.... OO........��..;,M.^..-......._...._._......._.__..........._��.�._ ^ . __.._...._ �•� �... =. < . • . O 0 e 00 ®.. • •• t. , • ,�.,4 ••; • O t^ ��• v 0.000 4O 0 1 1 1 T I 1 I 1 1 1 1 ( I I I II I i I 1 1 T I 1 Ift. I'. ►• t... I• 1.... 1%.• r• I• 1•- n t+ co CO °o CO °o CO 00 CO CO CO CO CO CI) CO O 0 0 9 0 0 0 0 0 0 0 O O O 0 0 O 0 0 0 0 O 0 O O O 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 - 1 1 1 1 1 1 1 C N Q. id C7 G >0 (0 ( i9 13) iU U > 4)) id �C) 4 it g Q g -) Q U) ' Z O li 2 Q 2 ¢ v) 0 Z g 4 Il ■ BOD Monthly Avg O BOD Weekly Avg Monthly Max Limit — Avg BOD Weekly Avg Max Limit -x— % Removal • ••••••••••••••: % Removal Min Limit 30 x x 100% 25 -O 95% 20 15 ....................... ................... - 90% 0 - 80% .J - sEb E 10 -..__-_._.-___._._.___--._..__----..._...___.._..._....... 75%O- 70% —._____ _—__ __ __.�OO1....._._._____ O- 65% ���OOO - - 60% ,�Q� 0 00 i 1 1 I I p.00U0100 W04 I I 55°% I I I I I I I + + -- -L 50 /o h )• r. I- h r- I• h r- co co co 0o as °o CO CO O O O 4 O O O Ol. O_ O O O O O O 4 O_ O O 1 1 1 1 1 I 1 ( 1 I 1 � 1 1 I 4 u. 2 g 4 ¢ v) 0 0 2 Q •, "" cn 0 O u. • TSS Monthly Avg o TSS Weekly Avg — Monthy Max Limit �— Weekly x TSS % Removal Max Limit ••: % Removal Min Limit 250 150 0 100% - 95% 0 o) - E 100 80% - 75% 50 II O • 0 • A_ 70% - 65% 60% 00 0 O 0 O 4G1iOa 00* 0 00 d 0 0 - 55 /o 50% O 1... Q 5 al O O Q. G V O O O O O & O U O 1 1 1 N 1 m 1 1 1 G) 1 P 1 • co =a) 0 o Q cn V N N • O. 3 7 N V N Date:4/17/09 pb: rdb DMR Da IC0021920 Whitemarsh WTP J 150 - 350 300 250 o Zinc Rdg Daliv Max Limit — — acute —+4—chronic 0 200 - 100 50 { :0%0 04R> 00e* OO 0 O 0 0 000 0 *t0 00a9 0 0 0 O0 �0a 0v 00q)O 000 O 0,00 0 <• A 0 a co r r N- r` N- t r` r- N- r-- co co co co o co co co co co co co rn o) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 c a > c or a > b C 0 c 0) 0. > b C a an a)O_ CO > - > N U 0 CD CO Q) O ' CO > > ▪ > N U o 0) CO ) LL Q < u) z o -) u. 2 Q 2 - < u) O z o' LL J co 0.010 ____________ 0 00 X X xX X 0 O 0.005 40x CA 0 OO O O . O. 0 O 0 0.0200 WQ� O * fit' Xa O i5 Swttt O Mercury Rdg Daily Max Limit x g/day Daily Max g/day 0.025 - 0.020 - 0 0.015 - O x 0 0.1200 0.1000 0.0800 0.000 ti r` r` r- N. r- co co o co o co rn 0 9 0 0 0 0 0 0 0 0 0 0 0 co co CD • 0 co U) Z• 2 0.0600 rn 0.0400 60 50 40 J 0) E 30 0 Oil & Grease Rdg • Monthly Avg Monthly Avg Limit Daily Limit 20 - 10 0•0 ••/ •J• •••• ••• ••• •••• ••• •••• ••• rn F- n r- r- r- r-. r-. r- r- r- F- co co co co co co co co co o co co c) a) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 c a a c • > 0 c >, c 0) 0 c > 0 b CD 0O t3. c0 O ▪ 7 N 0 N N 0c0 a CZ3 ▪ O N U 0 4) CO N u_ 2 C g -) < U) O Z 0 -) LL Q g < co O z o - LL Date: 10/23/09 DMR Data PPA NC0021920 Whitemarsh WRF Permit Required Chronic Toxicity Tests Date 10/13/04 1/5/05 4/4/05 7/13/05 10/5/05 1/25/06 4/5/06 7/12/06 10/4/06 1/4/07 4/18/07 7/11/07 10/3/07 1/9/08 2/6/08 3/25/09 4/16/08 7/9/08 10/29/08 1/5/2009 4/9/08 Parameter (Chronic P/F, Dilution = 50%) TGP3B - P/F STATRE 7Day Chr Ceriodaphnia TGP3B - P/F STATRE 7Day Chr Ceriodaphnia TGP3B - P/F STATRE 7Day Chr Ceriodaphnia TGP3B - P/F STATRE 7Day Chr Ceriodaphnia TGP3B - P/F STATRE 7Day Chr Ceriodaphnia TGP3B - P/F STATRE 7Day Chr Ceriodaphnia TGP3B - P/F STATRE 7Day Chr Ceriodaphnia TGP3B - P/F STATRE 7Day Chr Ceriodaphnia TGP3B - P/F STATRE 7Day Chr Ceriodaphnia TGP3B - P/F STATRE 7Day Chr Ceriodaphnia TGP3B - P/F STATRE 7Day Chr Ceriodaphnia TGP3B - P/F STATRE 7Day Chr Ceriodaphnia TGP3B - P/F STATRE 7Day Chr Ceriodaphnia TGP3B - P/F STATRE 7Day Chr Ceriodaphnia Follow up test to determine ChV & P/F Follow up test to determine ChV & P/F TGP3B - P/F STATRE 7Day Chr Ceriodaphnia TGP3B - P/F STATRE 7Day Chr Ceriodaphnia TGP3B - P/F STATRE 7Day Chr Ceriodaphnia TGP3B - P/F STATRE 7Day Chr Ceriodaphnia TGP3B - P/F STATRE 7Day Chr Ceriodaphnia Second Species Chronic Toxicity Tests 4/14/08 Fathead Minnow 7/7/08 Fathead Minnow 10/27/08 Fathead Minnow 1/8/09 Fathead Minnow Param Class Biological Biological Biological Biological Biological Biological Biological Biological Biological Biological Biological Biological Biological Biological Biological Biological Biological Biological Biological Sample Composite Composite Composite Composite Composite Composite Composite Composite Composite Composite Composite Composite Composite Composite ChV >100% ChV = 35.4% Composite Composite Composite Composite Composite ChV > 100 ChV > 100 ChV > 100 ChV > 100 Value Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Fail Pass Fail Pass Pass Pass Pass Pass Pass Pass Pass Pass wept. A Dist Box 1� Sample Poist 3 Head works Sample Point 1 Feet Dist. Box1 Dist. Box2 Disc Filter No.1 icgcl Backwash Betura Disc Filter No. P.sote a Clarifier No.1 Clarifier No.2 larifier No.3 111111111 Olio* Chlorine fir! Contact Basins arc Dorsett's, Inc. P.O. BOX 1339 100 WOODLYN DRIVE YADKINVILLE NORTH CAM -INA ?7 Sample Point, Sludge 4 Holding Aerobic Digester Genelltor in utility Transformer PPM Sludge Holding Basins To: NPDES Permitting Unit Surface Water Protection Section Attention: Ron Berry Date: June 22, 2009 NPDES STAFF REPORT AND RECOMMENDATION County: Columbus Permit No.: NC0021920 PART I - GENERAL INFORMATION 1. Facility and Address: Facility Name: Whitemarsh WWTP Physical Address: 1000 Nolan Avenue Whiteville, NC 28472 Mailing Address: City of Whiteville P.O. Box 607 Whiteville, NC 28472 2. Date of Investigation: May 27, 2009 3. Report Prepared bv: Tom Tharrington 4. Persons Contacted and Telephone Number: Name: Newlyn McCullen Title: WWRF Superintendent Telephone: (910) 642-5818 5. Directions to Site: Follow US Highway 76 West from the Wilmington Regional Office, take the Highway 74/76 Business exit towards Whiteville, turn left on Tram Road and travel for 0.6 mile, then turn left on Nolan Ave, the WWTP is at the end of this road. 6. Discharge Point (List for all discharge points): The facility has one (1) discharge point: • Outfall 001— treated wastewater discharge Latitude: 34° 19' 42" Longitude: 78° 40' 48" U.S.G.S. Quad No: J24SW U.S.G.S. Quad Name: Whiteville, NC 7. Topography (relationship to flood plain included): Elevation of approximately 60 feet above MSL adjacent to the White Marsh Swamp, the site is not considered to be in the 100-year flood plain. 8. Location of nearest dwelling: Approximately %2 mile. 9. Receiving stream or affected surface waters: a) Classification: Class C-Swamp b) River Basin and Subbasin No.: 03-07-58 c) Describe receiving stream features and pertinent downstream uses: Low velocity swamp waters, possible fishing and secondary recreation. PART II - BACKGROUND AND HISTORY See attached violation history. PART III - DESCRIPTION OF DISCHARGE AND TREATMENT WORKS 1) Volume of wastewater to be permitted: As per permit application: • Outfall 001— 3.0 MGD 2) Actual treatment capacity of the current facility? • Outfall 001— 3.0 MGD 3) Date(s) and construction activities allowed by previous Authorizations to Construct issued in the previous two years: Recently completed construction of new facility under ATC # 021920A03 with Project # E-SEL-T-03-0036 4) Please provide a description of existing or substantially constructed wastewater treatment facilities: • Automated bar screen & grit chamber with auger and disposal chute • 3 Influent pumps rated at 3,922 gpm • Dual 1.172 MG oxidation ditches with... • Two 255,530 gallon anoxic basins • Two 119,300 gallon anaerobic basins • One 102,495 anaerobic basin • Three 3,117 square foot clarifiers • 736 gpm waste pump station • 145,888 gallon aerobic digester with 2 40 hp blowers • 884,990 gallon sludge holding tank with two 200 hp blowers • 948 gpm sludge transfer station • 'Two 361 square foot effluent disc filters • Chlorine disinfection and Dechlorination system • Post aeration basin • 400 KW back-up generator 6) Please provide a description of proposed wastewater treatment facilities: None 7) Possible toxic impacts to surface waters: None 8) Pretreatment Program (POTWs only): Last inspection of the pretreatment program was conducted on August 14, 2008 and was found to be in compliance. Inspection report is attached. 9) Residuals handling and utilization/disposal scheme: Land Application under Permit WQ0000048, disposal of approximately 300 Dry Tons on 117 acres by Synagro Southeast Inc. 10) Treatment plant classification: Type: Extended Aeration Activated Sludge with BNR Class: IV 11) SIC Code(s): 4952 PART IV - OTHER PERTINENT INFORMATION 1. Is this facility being constructed with Construction Grant Funds or are any public monies (municipals only) involved? NA 2. Special monitoring or limitations (including toxicity) requests: NA 3. Important SOC, JOC or Compliance Schedule dates: NA 4. Alternative Analysis Evaluation: NA 5. Other Special Items: See attached correspondence from Kipp Glazier from the Wilmington Regional Office regarding mercury concerns, polishing pond and sludge storage decommissioning recommendations. PART V - EVALUATION AND RECOMMENDATIONS The Wilmington Regional Office recommends reissuance of the permit in accordance with the Lumber Basinwide permitting strategy, and provided no significant adverse public comment is received. The Wilmington Regional Office also requests that the recommendations provided herein are considered in the reissuance of Permit No. NC0021920. Signature of Report Peparer Dat oI Water Quality Regional Supervisor Date cc: WiRO NPDES Permit File Whiteville WWTP (NC0021920) without attachments Central Files — DWQ/NPDES Tharrington, Tom From: Glazier, Kipp Sent: Wednesday, June 10, 2009 1:46 PM To: Berry, Ron Cc: Tharrington, Tom; Willis, Linda; Shiver, Rick Subject: Whiteville NPDES Renewal NC0021920 Ron, Tom Tharrington is doing the staff report for Whiteville's renewal but I have a couple of issue I'd like you to consider: 1. Whiteville's Hg TMDL. The current permit has a concentration and a mass limit for mercury. The facility usually (not always but usually) meets the concentration limit. However, they cannot meet the mass Hg limit. Even at less than %Z permitted flow any detect of Hg is a mass limit violation. Talk with Tom Belnick about this issue. He has a better historical perspective on the Lumber TMDL for Hg than I do. 2. Whiteville needs to work on decommissioning their old polishing pond. It is no longer used. It has sludge that may contain metal such as Hg, Cu, Zn, and Pb. Occasionally it overflows into the effluent and has caused limit violations. I would like to see something requiring Whiteville to develop a plan to properly dispose of the water and sludge in the pond and decommission it before the expiration date of the new permit. A special condition with a schedule of compliance may be a good way to accomplish this, Evaluate options by date, develop a plan by date, implement plan by date, and complete disposal and decommissioning by date. The schedule should requires periodic progress reports to WIRO, every 6 months or so. I could see this taking 3 to 5 years. 3. Whiteville needs to decommission their old "sludge storage tanks". These tanks are old drying beds that were converted to sludge holding tanks. The tanks are at ground level and subject to overflowing into White Marsh. A special condition with a schedule of compliance may be a good way to accomplish this. I think 12-18 months is enough time. kipp.glazier@ncdenr.gov North Carolina Department of Environment & Natural Resources Division of Water Quality Wilmington Regional Office 127 Cardinal Dr Ext Wilmington, NC 28405 phone (910) 796-7215 fax (910) 350-2004 Reporting a SSO, by-pass, or spill after hours, holidays, or weekends telephone 1-800-858-0368. http://www.ncwaterquality.org/ E-mails to and from this address are subject to North Carolina Public Records Law and may be disclosed to third parties. 1 Asure Spivey Plant Superintendent Newlyn McCullen Lab Supervisor / Pre-treatment Coordinator City of Whitevide Wastewater Treatment Plant Post Office Box 607 — 1000 Nolan Avenue Whiteville, North Carolina 28472 910-642-5818 — Fax: 910-642-3094 email: aspivey@ci.whiteville.nc.us nmccullen@ci.whiteville.nc.us February 27, 2009 Mr. Charles H. Weaver, Jr. NC DENR/ DWQ/NPDES 1617 Mail Service Center Raleigh, N.C. 27699-1617 Dear Mr. Weaver: The City of Whiteville is requesting renewal of the NPDES Permit number NC0021920 for Whiteville Water Reclamation Facility. Enclosed is a completed and signed application forms with supplemental information. Additional Priority Pollutant Analyses were collected and sent to the Laboratory, but the results were not received for the analysis. They have been rescheduled and the results will be sent as soon as they are received. Please advise of any further assistance we may be in processing this application by letter or feel free to call me at 910 — 642-5818. REK, , RIV v AS Enclosures DENR - WATER: QUALITY POINT SOURCE BRANCH Asure Spivey WWRF Superintendent L. Cril tilt) #111114111 04; 1410 )1 KF;)raLg3.1-ev-4 „n7,4 Disc Filter No.2 /-1,6/ 010 143 ...t.1-eY // Ciarifier No.1 ..06Sg11:118g err, 7 7.re, Holding Sludge Holding Basins 6-enevig 0 Y. 1.1 Utility ma Transformer ntact Basins eFP D.rC,4 q 7 F. Dorsett's, Inc. 1 P.O. BOX 1339 100 WOODLYN DRIVE YADKINVILLE NORTH CARDS INA ,7 Whiteville Water Reclamation Facility The Headworks Facility was put into operation in April, 2004 & consist of a Vulcan barscreen with %2 inch spacing. A Jones& Attwood grit chamber, grit pump & Classifier and a conveyer put all the waste into a 4 yard container and the hauled to the landfill. (EIMCo Water Technologies has bought out Jones & Attwood) The influent pumps consist of three 60 Hp Twelve inch Flygt pumps with VFD's controlled by a SCADA System installed by Dorsett Technologies and this system usually maintains a water level of about 5 feet in the wet well. The aeration basins are designed for and use the aerators from EIMCO Water Technologies with their BNR process. Four 100 HP Motors and gear boxes with VFD controlled by the SCADA system monitoring the DO from a DO Probe in each basin. The flow going over the weirs from the aeration basins go to distribution box # 1 and is split to the Three clarifiers. The return sludge from the clarifiers go to distribution box # 2 where sludge can be wasted to the Digester/Holding tanks or returned back to the Influent wet Well. (Headworks Facility) Clarifier equipment by EIMCo Water Technologies. The effluent from the Clarifiers go on through the Kruger Disk Filters and is chlorinated on the way to the post aeration basin. Post aeration has one twenty HP floating aerator with the flow going on into the Contact Chambers. The weir is at the end of the contact Chamber with flow measuring , PH, Do and Temp. measuring devises being recorded by the SCADA system with flow also on a chart recorder. The Effluent goes on over into the effluent channel where it is dechlorinated using Calcium thiosulfate . (Captor) The Chlorination and Dechlorination units are controlled by the SCADA system monitoring the flow meter. The Effluent flow from the channel through a pipe into the Whitemarsh, pipe 001. The Motor Control Center for all the WWRF is in the Maintenance Building , except the Headworks Facility. The Sludge digester has two (2) each forty Hp blowers and the Sludge Holding tank has two (2) two Hundred HP Blowers with diaphragm fine bubble defuses. These units are not on the Standby Generator when the Electrical Power goes out. Feburary 26, 2009 Sludge Handling (1.030Mg Capacity) The sludge holding tank and the digester tank are.both fine bubble defused aerated and when the MLSS concentrations in the treatment basin exceeds the normal operating levels the sludge levels are built up in the clarifiers and then wasted to either one or both of the sludge tanks. Both of the tanks can be decanted to thicken up the sludge before being hauled for land application. Transfer pumps can pump from one tank to the other and also to the sludge loading station for loading the trucks. The sludge is tested and applied as required by land application permit # WQ0000048. W4JF Loa Ras; • / •w • `1 ra R�1j / • SNIT.-lllf , a A G A, �.,..::,s::;/.. MIU•••• AIYR s 'Y! rR !M4 SS SI. wurallt° lu I�© not` n. 1 l 10[11_ _ _ IL EDI JL �YJL J it MILL ST 1 /X i• nivAr rE ` L —,LL! SP. LiN r RL1VDDB C L CLARENCE ST.1 I, I I U7 AM, ulrcn.! S .01 i YT•D•E!N fr trio, S.-,A NUS- L l 111 111 1,1 111 �r u' .a w 1 AAr 1r.A., / .r / /J L _ ._ Mal BEARINGS HERON ARE BASED ON THE NORTH CAROLINA GRID COORDINATE SYSTEM DISTANCES SIOVN ARE HORIZONTAL GROUND DISTANCES BOUNDARY ESTABLISHED MN AN ACTUAL MELD TRAVERSE. INACCESSIBLE LINES ARE MIMED (ROM FIELD TRAVERSE ROADS AND STREETS, OTHER THAN !MOT( TRAVERSED. ARC PLOTTED BY SCALE FROM EXISTING MAPS AND AERIAL PHOTOGRAPHS. - INDICATES PLACCNENI 1T ERlRA-TERRITORIAL LINO BOUNDARY PARKER ILL MARKERS LOCATED ON SHOULDER OF ROAD OPPOSITE POINTS IN (. AS SIOVN OM MAP CITY LIMIT LINES TAKEN FROM ERISIING IL•PS AND DESCRIPTIONS AND NOT S1AIVETED T111S DATE. PONS/ FILL ODB ,! auo w N1ER `�f.`l3D T.iTT,r]a..t w. w1[Inc VAn. i -=D_csVsTED...n •M MI• tame �yrY, uY..r s•Bi B'.1• WV ia i�f.rl' .a . .i iS. S. a�r...a MIMi'i •AMMIL•.a 'i■4.. 5.. �.a iIttiIIt• • l'; r., 11111. A MN, MN i=IIa ./MM. `.= a'A>s: B♦Trilra. p•. a1r..a `1`iilie/itii� • ,i f:i��Y` Nil♦'R[' •11141/1=1■1i Rtla:; AM, 111•111la , B: AMMO. ramTI;T_, l4.ancit ii inn'iBt"LL. a=^ SM. i.a.=.• �iti i• L� i ;=I:CY r;tl Ili BaWri NIL'. J'!s" li aM•la♦l'L. ai'sla •=11.11!.: aamrat mi B♦•.f_liY • .a r.lta BBBBBIcs sari. cart :a �R.il'•, Jt lYs RRRtarRil -1- s.ra saTy av�•Ragl �''Ll'Jiiilc�iii B♦a.BBR=RRC`B.l,,S, as1ra jai—■y]J :� B♦aril Nulls MENU• ill ES .a skis ri �I'l a�i �1�p.♦;Z3.� Y•Bslb ranamoTiRmm si!s.R.ra� cimaar•cyaTloriu: M�IMIV�I•S 'Y.:fi1.a �1!=iY1_91 I=111= MMINI1S���.l.RRyH.� 'at_.t .ii �����lai-.• Tilcli �,4 `jilf1� =41 qle •L��i INI B♦u'/.1{ /i ! a �1i'MIME/ i':;lulsi-a = = 11A a:1t7:Min EMf:Sr:[12 'a,1 :1 1— : .:: : T•a : DBBBB 1/: , nnarsTu;aSi - roo Blv„a �i�• 1f4 is Ba1 1i R. ..Ia,'1ra III .RIi.�LSlxaili _==y 1■Y�rtlil �:11� ■� tii!dB. ,'i a ;i. •i i i ,Y a 1�tS ammtrt lra a�..1 E .y 1 a �1n FACT SHEET —LUMBER RIVER BASIN REVIEW FOR EXPEDITED PERMIT RENEWALS (Instructions for Permit Writer) Basic Information To Determine Potential For Expedited Permit Renewal 11� Reviewer(s) / Date: So l4 16r42,lt—/ 1 2A (al Check IfCorrect Permit Number: NC0021920 ----- Facility Name: Whitemarsh WWTP Sub -basin number: 03-07-58 Receiving Stream: White Marsh Permit Stream Classification: C, Sw Public W P Private WWTP WTP Industrial Other * If WTP, add permitted flow 'mit(MGD) CO"V GREEN SAND RO IE Pretreatment? ft, NO (If YES then contact PERCS for data RPA) TRC limit/footnote? (ES/ADD* NO (If in permit EDIT FOOTNOTE see TRC FOOTNOTE text) WET testing/footnote? YES/ADD**., NO (If in permit EDIT SPECIAL CONDITION see WET language text, check footnote) a j1- _.� NH3 limit? I �, Ole $YES/ADD* . NO Win permit check, edit LIMIT for applicable LIMITS categories, monthly/weekly or wekly/daily) w **IWC evaluation needed? YES NO IWC calculation in file? YES (If facility has BACKUP CHLORINATION see SPECIAL CONDITION and FOOTNOTE text) Permit Special Conditions? � S/ADD) NO Instream monitoring? NO (Check, edit where warranted) 303(d) listed? YES 0 Watch Listed? ID NO Permit MODs since last renewal? YES NO Compliance issues? YES NO Existing expiration date: 8/31/2009 Next cycle expiration date: 8/31/2014 Miscellaneous Comments * Apply WTP Permitting Strategy, WET may be required * * IWC requires 7Q10 flow data, check with Basin Coordinator for best source Select Expedited Catergory That Applies To This Permit Renewal SIMPLE EXPEDITED - administrative renewal with no changes, or only minor ❑ changes such as TRC or ownership change. Includes conventional WTPs (does not include permits with Special Conditions, Reverse Osmosis, or Ion -exchange WTPs). COMPLEX EXPEDITED - includes Special Conditions such as EAA, Wastewater ❑ Management Plan, 303(d) listed, toxicity testing, instream monitoring, compliance concerns, edit NH3 limit, phased limits, stream re -class). NOT EXPEDITED - Mark all of the following that apply: Major Facility (municipal/industrial) 4ermitted flow ? 0.500 MGD (requires full Fact Sheet) ❑ Minor Municipal with Pretreatment Program (SIUs) ❑34inor Industrial subject to Federal Effluent guidelines Limits based on RPA (toxicants/metals,GW remediation for organics) g ) ❑ Other d 2009 Lumber Basin Permit Review/Shared Drive/Lumber Basin r ATA NCDENR - North_earolina Department of Environment and Natural Resources Division of Water Quality Beverly Eaves Perdue Coleen H. Sullins Dee Freeman Governor - Director Secretary November 4, 2009 Newlyn McCullen Whiteville WRF Superintendent P. O. Box 607 Whiteville, NC 28472 Subject: Draft of Renewal Permit NPDES Permit NC0021920. Whiteville WRF Columbus County (A)AClass IV Dear Mrpivey: Enclosed with this letter is a copy of the renewal draft permit for your facility. Be aware there are many changes from your existing permit. Please review the draft carefully to understand the conditions, measurement units, and new requirements. Your permit is among several in the Lumber River basin that are up for renewal. The changes made in your renewal permit comply with North Carolina water quality standards (WQS) and Division polices. These changes include: Summary of Changes 1) Total Zinc Daily Limit has been reduced and a Monthly Average Limit added. Total Zinc has a chronic WQS, 50 pg/I, and an acute WQS, 67 pg/I. The applicable compliance limit was calculated and applied. 2) Total Copper monitoring has been reduced to quarterly. Total Copper is an action level toxicant and as such its measurement only needs to coincide with the chronic toxicity test sample. 3) Total Silver monitoring has been reduced to quarterly. Total Silver is an action level toxicant and as such its measurement only needs to coincide with the chronic toxicity test sample. 4) A Toluene Monthly Average and Daily Limit with 2/monthly monitoring has been added. Toluene was detected and could potentially exceed chronic WQS. To be consistent with EPA guidelines a daily limit was defined. - 5) A footnote narrative for TRC has been added. A narrative to clarify application and measurement/reporting protocols was added to be consistent with Division standards. 6) A nitrite/nitrate nitrogen reporting has been added. To calculate the Total- Nitrogen pollutant a nitrite/nitrate nitrogen measurement is required. Reporting was added to be consistent with Division standards. Page 1of2 1617 Mail Service Center, Raleigh, North Carolina 27699.1617 Location: 512 N. Salisbury St. Raleigh, North Carolina 27604 Phone: 919-807-63001 FAX 919-807-64951 Customer Service:1-877-623-6748 Internet: http: I! h2o.state.nc.us / An Equal Opportunity 1 Affirmative Action Employer NorthCarolina• � !7atura/Iy 7) A total kje/dah/ nitrogen reporting has been added. To calculate the Total Nitrogen pollutant a total Kjeldahl nitrogen measurement is required. Reporting was added to be consistent with Division standards. 8) A Special Condition A. (6) has been added. Compliance concerns caused by out of service equipment systems has prompted the Division to clarify the compliance requirements, to define reporting protocols, and to require action plans. The permit draft will be sent to the EPA Region IV and Environmental Sciences Section for comment and approval. Concurrent with this notification the Division is publishing a notice in the newspaper having circulation in the general Columbus County area, soliciting public comments on this permit draft. P/ease provide any comments you may have regarding this draft to DENR - DWQ, NPDES Program no later th.an 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 Ron Berry at (919) 807-6396 or by email at ron.berryPncdenr.gov. If no adverse comments are received from the public or from you, this permit will likely be issued.in December 2009, with an effective date of February 1, 2010, expiring on August 31 30, 2014. Sincerely, ee/y,,,y Ron Berry Eastern NPDES Program Attachments Cc: Wilmington Regional Office/Surface Water Protection Section (email with Fact Sheet) EPA Region IV/Marshall Hyatt (with Fact Sheet and application form) Environmental Sciences Section/Aquatic Toxicology Unit/Susan Meadows (email) PERCS/Dana Folley (email with Fact Sheet and RPA) TACU/Steve Reid (email) NPDES Unit Page 2 of 2 Permit No. NC0021920 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 Whiteville is hereby authorized to discharge wastewater from a facility located at the Whiteville WRF 1000 Nolan Avenue Whiteville, NC Columbus County to receiving waters designated as White Marsh Swamp in the Lumber 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 tbd. This permit and the authorization to discharge shall expire at midnight on August 31, 2014. Signed this day tbd. DRAFT Coleen H. Sullins, Director Division of Water Quality By Authority of the Environmental Management Commission • Permit No. NC0021920 SUPPLEMENT TO PERMIT COVER SHEET All previous NPDES Permits issued to this facility, whether for operation or discharge, are hereby revoked. [ The exclusive authority to operate this facility arises under this permit. The authority to operate the facility under previously issued permits bearing this number is no longer effective. J The conditions, requirements, terms and provisions of this permit authorizing discharge under the NPDES govern discharges from this facility. The City of Whiteville is hereby authorized to: 1. Continue to operate an existing 3.0 MGD wastewater treatment system that includes the following components: p Mechanical bar screen o Influent meter o Influent composite sampler p Grit removal p Influent pump station p Anerobic basin/distribution box o Two (2) 1.5 MGD treatment capacity anoxic/aeration basins 0 Two (2) flow distribution boxes p Three (3) clarifiers p Two (2) tertiary disc filters p Post aeration basin 0 Chlorination with chlorine contact chamber 0 Dechlorination p Effluent flow meter 0 Effluent composite sampler p One (1) 182,000 gallon aerobic sludge digester p One (1) 843,000 gallon sludge holding tank p Sludge truck loading station 0 Four (4) sludge holding basin/drying beds (out of service) 0 Polishing pond (out of service) o Standby power This facility is located at the Whiteville WRF in Whiteville,. NC off Nolan Avenue in Columbus County. 2. Discharge from said treatment works via Outfall 001 into White Marsh Swamp, a Class C, Sw stream in the Lumber River Basin, at the location specified on the attached map. Permit NC0021920 • A. ,(1) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - DRAFT Beginning on the effective date of this permit and lasting through the expiration date, the Permittee is authorized to discharge treated wastewater from Outfall 001. Such discharges shall be limited and monitored by the Permittee as saecified below: EFFLUENT CHARACTERISTICS EFFLUENT LIMITATIONS MONITROING REQUIREMENTS Monthly Average Weekly Average Daily Maximum Measurement Frequency Sample Type Sample Location 1 Flow 3.0 MGD Continuous Recording I or E BOD, 5-day, 20°C 2 (April 1- October 31) 5.0 mg/L 7.5 mg/L Daily Composite I & E BOD, 5-day, 20°C 2 (November 1- March 31) 10.0 mg/L 15.0 mg/L Daily Composite I & E Total Suspended Solids 2 (TSS) 30.0 mg/L 45.0 mg/L Daily Composite I & E Ammonia as Nitrogen (NH3-N) (April 1 - October 31) 1.8 mg/L 5.4 mg/L Daily Composite E Ammonia as Nitrogen (NH3-N) (November 1- March 31) 4.9 mg/L 14.7 mg/L • Daily Composite • E Total Residual Chlorine (TRC) 3 28 µg/L Daily _ Grab E Fecal Coliform (geometric mean) 200/100 ml 400/100 ml Daily Grab E Fecal Coliform (geometric mean) (June 1- September 30) 3/Week Grab U, D Fecal Coliform (geometric mean) (October 1- May 31) Weekly • Grab U, D Dissolved Oxygen (DO) Not less than 5.0 mg/L, daily average Daily Grab E Dissolved Oxygen, mg/L (DO) (June 1- September 30) ., 3/Week Grab U• D Dissolved Oxygen, mg/L (DO) (October 1- May 31) • Weekly Grab U• D Temperature, °C • Daily Grab E Temperature, °C (June 1- September 30) 3/Week Grab U, D Temperature, °C (October 1- May 31) Weekly Grab U, D Conductivity, µmhos/cm (June 1- September 30) 3/Week Grab U, D Conductivity, µmhos/cm (October 1- May 31) Weekly Grab U, D pH Not more than 9.0 S.U. nor Tess than 6.0 S.U. Daily Grab E Oil and Grease 30.0 mg/L 60.0 mg/L Weekly Grab E Total Mercury a (Method 1631 E) 0.012 µg/L 0.004 g/day Weekly Composite E Total Zinc 100.5 µg/L 67.0 µg/L Weekly Composite E Toluene 22 µg/L 22 µg/L 2/Month Grab E Nitrite/Nitrate Nitrogen (NO2-N + NO3-N) Monthly Composite E Total Kjeldahl Nitrogen (TKN) • Monthly Composite E Total Nitrogen, mg/L (TN) TN = (NO2-N + NO3-N) + TKN Monthly Calculated E Total Phosphorus, mg/L (TP) Monthly Composite E Total Copper, µg/I • Quarterly Composite E Total Silver, µg/L Quarterly Composite E Chronic Toxicity 5 Quarterly Composite E Pollutant Analysis 6 Annually Composite E • (FOOTNOTES on next page) t' t \ ' ; • L •• ! r • •�_ / i • .+ N C0021920 Facility • I -- ..% US HWY 74/76 Bus 00- NC0021920 -4 -- .. ... "`' N % man :r 1111„6"._.: .,, rrgy . i14. - T •^r - 00* AU . Upstream Sample •�&Fe -o- 40.0 ` tr- a te. 7, tr. .4116.. • ��e• .r 7 46. • -,•%, - a 1/4 NC0021920 Discharge r- ; —*4.10 — s-r ... ter.' NC0021920 1' '46216- R ♦ . .V•. .ViA� •4e — -- -war" Downstream Sample �...�.. ` RAL. £.� py ght ) 9 ,Map " USGS Quad: J24SW Whiteville, NC Outfall Facility Latitude: 34° 19' 44" 34° 19' 41.3" Longitude: 78° 40' 41.3" 78° 40' 47.7" . Stream Class: C, Sw Subbasin: 03-07-58 Receiving Stream: White Marsh Swamp Whiteville WRF NC0021920 . Columbus County Permit NC0021920 (Cqntinue A. (1) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS) Footnotes: 1. I = Influent. E = Effluent. U = Upstream at U.S. 74/76. D = Downstream at railroad crossing. 2. The monthly average effluent BODS and TSS concentrations shall not exceed 15% of the respective influent value (i.e., 85% removal). 3. Total Residual Chlorine compliance is required for chlorine or chlorine derivative used for disinfection. The Division shall consider all effluent TRC values reported below 50 ug/I 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/I. 4. See Special Condition A. (2) for calculation of mercury mass loading. 5. Chronic toxicity (Ceriodaphnia) at 50%; January, April, July, and October[ see Special Condition.A. (4)]. 6. See Special Condition A. (5), Effluent Pollutant Scan. g/day = grams per day There shall be no discharge of floating solids or visible foam in other than trace amounts. A. (2) TOTAL MERCURY MASS LOADING CALCULATION - DRAFT The daily maximum mass loading limit for mercury is 0.004 grams/day, which is based on a mercury wasteload allocation derived from the Lumber River Basin Mercury TMDL. Both the effluent mercury concentration and mass loading should be reported on the monthly discharge monitoring reports (DMRs). Calculation of the mass daily loading is as follows: Effluent Concentration (ug/l) x Daily Flow (MGD) x 3.785 (conversion factor) = grams mercury/day A. (3) MERCURY REOPENER - DRAFT The Division may re -open this permit to require mercury load limitation changes, mercury minimization plans, and/or source water characterization following completion of the Phase 2 Mercury 'TMDLs for the Lumber and Waccamaw River watersheds. Permit NC0021920 • A. (4) CHRONIC TOXICITY PERMIT LIMIT (QRTRLY) - DRAFT •. The effluent discharge shall at no time exhibit observable inhibition of reproduction or significant mortality to Ceriodaphn/a dubia at an effluent concentration of 50 %. The permit holder -shall perform at a minimum, Quarter/v 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. If reporting pass/fail results using the parameter code TGP3B, DWQ Form AT-1 (original) is sent to the below address. If reporting Chronic Value results using the parameter code THP3B, DWQ Form AT-3 (original) is to be sent tothe 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 bemeasured 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. If the Permittee monitors any pollutant more frequently then required by this permit; the results of such monitoring. shall be included in the calculation & reporting of the data submitted on the DMR & all AT Forms submitted. 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 NC0021920 A..(5) EFFLUENT POLLUNTANT SCAN - DRAFT . The permittee shall perform Effluent Pollutant Scans for all parameters listed in the attached table (in accordance with 40 CFR Part 136). - Samples shall be collected in different calendar years, approximately annually, except to provide seasonal variation. 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 (Method 1631E) • P-chloro-m-creso 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 lsophorone Bromoform Acenaphthene Naphthalene Carbon tetrachloride Acenaphthylene Nitrobenzene Chlorobenzene Anthracene N-nitrosodi-n-propylamine Chlorodibromomethane Benzidine N-nitrosodimethylamine Chloroethane Benzo(a)anthracene N-nitrosodiphenylarnine 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 The Permittee shall report test results within 90 days of sample collection to the Division in DWQ Form- DMR- PPA1 or other form approved by the Director (see NPDES Unit web site). The report shall be submitted to the following address: Division of Water Quality Water Quality Section / Central Files 1617 Mail Service Center Raleigh, North Carolina 27699-1617 Submittal of PPA results with NPDES renewal applications will be required. Permit NC0021920 A. (6) HOLDING POND AND SULDGE HANDLING BASINS EVALUATION - DRAFT During the previous treatment plant upgrade two operational functions were removed from service. These removed functions have contributed to permit violations and continue to be potential sources of surface water contamination. - A holding pond was isolated from the treatment flow and is partially filled with sludge material and is separated by means of a wooden -batter board dam reinforced with gravel from the post aeration basin. - Four sludge handling basins are no longer used to collect sludge waste as all wasted sludge is diverted to the sludge digester and final sludge disposal. Some sludge residual remains in the basins and support piping is still available. Requirements: 1. The wastewater from these removed functions. must be recycled to the appropriate point in the active treatment process. 2. Material from the holding pond cannot be allowed to enter the post aeration pond or otherwise overflow. A better designed isolation method is strongly recommended that: a. at a minimum equals the height of the bank separating the pond from the aeration basin and b. is impermeable to liquid seepage. 3. The sludge handling basins are abandoned and cannot be allowed to overflow to the surrounding area. It is strongly recommended that a documented method/practice be developed and utilized that mitigates an overflow event. - 4. The overflow and/or release of material from the confines of the holding pond or sludge handling basins containment must be reported to the Wilmington Regional office the next business day during holidays/week ends or no later than 24 hours after an event during normal business hours Monday through Friday. 5. Develop and submit to: DENR/Division of Water Quality Surface Water Protection 127 Cardinal Drive Extension Wilmington, NC 28405 a. an action plan with defined action items, no later than 18 months from the effective date of this permit, for the removal of contaminated sludge from the holding pond and sludge handling basins and - b. an action plan with defined action items, no later than 24 months from the effective date of this permit, for the permanent closure and decommissioning of the holding pond and sludge holding basins and c. a status report every 6 months, after the effective date of this permit and continuing until the holding pond and sludge holding basins are decommissioned. The report should include, but is not limited to, all completed actions, on going activities, and planned actions involving the holding pond and sludge holding basins. The action plans goal should be to complete decommissioning of the holding pond and sludge holding basin prior to the next permit renewal. -