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HomeMy WebLinkAboutNC0020940_Permit Issuance_20131018NPDES DOCUHENT 5CANNINO COVER SHEET NPDES Permit: NC0020940 Murphy WWTP Document Type: Permit Issuance Wasteload Allocation Authorization to Construct (AtC) Permit Modification Complete File - Historical Engineering Alternatives (EAA) Compliance Instream Assessment (67b) Speculative Limits Environmental Assessment (EA) Document Date: October 18, 2013 Thin document is printed on reuse paper - ignore any content on the re-srerse aide ArA NCDENR North Carolina Department of Environment and Natural Resources Division of Water Resources Water Quality Programs Pat McCrory Thomas A. Reeder John E. Skvarla, III Governor Director Secretary October 18, 2013 Ms. Anna Payne, Town Manager Town of Murphy P.O. Box 130 Murphy, North Carolina 28906 Subject: NPDES Final Permit Permit NC0020940 Murphy WWTP Cherokee County Class III Facility Dear Ms. Payne: Division personnel have reviewed and approved your application for renewal of the subject permit. Accordingly, we are forwarding the attached NPDES 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). The final permit contains the following changes from your previous permit: • Following the Mercury Permitting Guidance for the implementation of the Statewide Mercury TMDL mercury data was reviewed to determine the need for a limit or a Mercury Minimization Plan. As a result of this evaluation an annual average limit of 47 ng/1 was added to the permit. • As a result of a reasonable potential analysis the limit and monitoring for cyanide were removed from the permit. 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. 1617 Mail Service Center, Raleigh, North Carolina 27699-1617 Location: 512 N. Salisbury St. Raleigh, North Carolina 27604 Phone: 919-807-63001 FAX: 919-807-6492 Internet: www.ncwateraualitv.orq An Equal opportunity 1 Affirmative Action Employer None Carolina Xaturaiij Town of Murphy October 18, 2013 Page 2 of 2 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 Resources 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 Teresa Rodriguez at telephone number (919) 807-6387 or at email Teresa.rodriguez@ncdenr.gov. Sincerely, Thomas A. Reeder cc: NPDES Files Central Files EPA Region 4 (e-copy) Asheville Regional Office / Surface Water Protection Section Aquatic Toxicology Unit (e-copy) Permit NC0020940 STATE OF NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES DIVISION OF WATER RESOURCES PERMIT TO DISCHARGE WASTEWATER UNDER THE NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM In compliance with the provision of North Carolina General Statute 143-215.1, other lawful standards and regulations promulgated and adopted by the North Carolina Environmental Management Commission, and the Federal Water Pollution Control Act, as amended, the Town of Murphy is hereby authorized to discharge wastewater from a facility located at the Murphy WWTP Payne Street Murphy Cherokee County to receiving waters designated as the Hiwassee River in the Hiwassee River Basin in accordance with effluent limitations, monitoring requirements, and other conditions set forth in Parts I, II, III and IV hereof. This permit shall become effective December 1, 2013. This permit and authorization to discharge shall expire at midnight on August 31, 2017. Signed this day October 18, 2013. djomas A. Reeder, Director Division of Water Resources By Authority of the Environmental Management Commission Page 1 of 7 Permit NC0020940 SUPPLEMENT TO PERMIT COVER SHEET All previous NPDES Permits issued to this facility, whether for operation or discharge are hereby revoked. As of this permit issuance, any previously issued permit bearing this number is no longer effective. Therefore, the exclusive authority. to operate and discharge from this facility arises under the permit conditions, requirements, terms, and provisions induded herein. The Town of Murphy is hereby authorized to: 1. Continue to operate a 1.4 MGD wastewater treatment facility that includes the following components: > Bar Screen > Flow splitter > Extended aeration plant (SBR) in parallel > Post Equalization Basin > Effluent chlorination and dechlorination units > Flow measurement > Aerobic sludge digestion > Sludge drying beds 2. Discharge from said treatment works at the location specified on the attached map into the Hiwassee River, classified C waters in the Hiwassee River Basin. Page 2 of 7 Permit NC0020940 PART I A.(1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS (1.4 MGD) During the period beginning on the effective date of the permit and lasting until expiration, the Permittee is authorized to discharge from outfall 001. Such discharges shall be limited and monitored by the Permittee as specified below: EFF UE,-- ;�' ' �+ sir LIMITS "' ,�' ti.� r 'Daily° ' MONITORING�REQUIREMENTS� 1 ! . . • 3' if 1. 4 Y.T ...._ YK + ! CHARACTERISTICS ..,,,.... _ ., .. _. _. _ • • Mo'r mhly _ _Average Nee r'li ' *Op _ " Maidi um Measurement ; Sa p e `. Yp ! §a 1p]e�. Damp _.. r F que 'cy, . - . Flow 1.4 MGD Continuous Recording Influent or Effluent BOD, 5-day (20°C)1 30.0 mg/L 45.0 mg/L 3/Week Composite Effluent, Influent Total Suspended Solids1 30.0 mg/L 45.0 mg/L 3/Week Composite Effluent, Influent NH3 as N 3/Week Composite Effluent pH Between 6.0 and 9.0 standard units 3/Week Grab Effluent Fecal Coliform (geometric mean) 200 / 100 ml 400 / 100 ml 3/Week Grab Effluent Total Residual Chlorine 28 µg/L 3/Week Grab Effluent Temperature (°C) Daily Grab Effluent Total Mercury3 0.047 NIL (annual average) Quarterly2 Composite Effluent Total Silver Quarterly2 Composite Effluent Total Nitrogen (NO2 + NO3 + TKN) Semi -Annually Composite Effluent Total Phosphorus Semi -Annually Composite Effluent Chronic Toxicity4 Quarterly Composite Effluent Effluent Pollutant Scan Monitor and Report Footnote 5 Footnote 5 Effluent Notes: 1. The monthly average BOD5 and Total Suspended Solids concentrations shall not exceed 15% of the respective influent value (85% removal). 2. Quarterly monitoring shall be conducted on the same months as chronic toxicity. 3. The test for Total Mercury shall be EPA Mthod1631 E. 4. Chronic Toxicity (Ceriodaphnia) P/F at 2.2%; tests shall be conducted in March, June, September and December [see A. (2) for further details]. Chronic toxicity sampling shall coincide with metals sampling. 5. The permittee shall perform three Effluent Pollutant Scans during the term of this permit [see A. (3)]• There shall be no discharge of floating solids or visible foam in other than trace amounts. Page3 of 7 Permit NC0020940 A.(2.) CHRONIC TOXICITY PERMIT LIMIT (Quarterly) The effluent discharge shall at no time exhibit observable inhibition of reproduction or significant mortality to Ceriodaphnia dubia at an effluent concentration of 2.2%. The permit holder shall perform at a minimum, quarterhi monitoring using test procedures outlined in the "North Carolina Ceriodaphnia Chronic Effluent Bioassay Procedure," Revised December 2010, or subsequent versions or "North Carolina Phase II Chronic Whole Effluent Toxicity Test Procedure" (Revised- December 2010) or subsequent versions. The tests will be performed during the months of March, June, September and December. These months signify the first month of each three month toxicity testing quarter assigned to the facility. Effluent sampling for this testing must be obtained during representative effluent discharge and 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 -December 2010) or subsequent versions. All toxicity testing results required as part of this permit condition will be entered on the Effluent Discharge Monitoring Form (MR-1) for the months in which tests were performed, using the parameter code TGP3B for the pass/fail results and THP3B for the Chronic Value. Additionally, DWR Form AT-3 (original) is to be sent to the following address: Attention: North Carolina Division of Water Resources 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. Assessment of toxicity compliance is based on the toxicity testing quarter, which is the three month time interval that begins on the first day of the month in which toxicity testing is required by this permit and continues until the final day of the third month. Should any test data from this monitoring requirement or tests performed by the North Carolina Division of Water Resources indicate potential impacts to the receiving stream, this permit may be re -opened and modified to include alternate monitoring requirements or limits. Page 4 of 7 Permit NC0020940 If the Permittee monitors any pollutant more frequently than required by this permit, the results of such monitoring shall be included in the calculation 86 reporting of the data submitted on the DMR 86 all AT Form 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. Page 5 of 7 Permit NC0020940 A.(3.) EFFLUENT POLLUTANT SCAN The Permittee shall perform a total of three (3) Effluent Pollutant Scans for all parameters listed below. One scan must be performed in each of the following years: 2014, 2015, and 2016. Analytical methods shall be in accordance with 40 CFR Part 136 and shall be sufficiently sensitive to determine whether parameters are present in concentrations greater than applicable standards and criteria. Samples should be collected with one quarterly toxicity test each year, and must represent seasonal variation [i.e., do not sample in the same quarter every year]. Unless otherwise indicated, metals shall be analyzed as "total recoverable." Ammonia (as N) Chlorine (total residual, TRC) Dissolved oxygen Nitrate/Nitrite Kjeldahl nitrogen Oil and grease Phosphorus Total dissolved solids Hardness Antimony Arsenic Beryllium Cadmium Chromium Copper Lead Mercury (EPA Method 1631E) Nickel Selenium Silver Thallium Zinc Cyanide Total phenolic compounds Volatile organic compounds: Acrolein Acrylonitrile Benzene Bromoform Carbon tetrachloride Chlorobenzene Chlorodibromomethane Chloroethane 2-chloroethylvinyl ether Chloroform Dichlorobromomethane 1, 1-dichloroethane 1,2-dichloroethane Trans-1,2-dichloroethylene 1,1-dichloroethylene 1,2-dichloropropane 1,3-dichloropropylene Ethylbenzene Methyl bromide Methyl chloride Methylene chloride 1, 1 ,2,2-tetrachloroethane Tetrachloroethylene Toluene 1,1,1-trichloroethane 1,1,2-trichloroethane Trichloroethylene Vinyl chloride Acid -extractable compounds: P-chloro-m-cresol 2-chlorophenol 2,4-dichlorophenol 2,4-dimethylphenol 4,6-dinitro-o-cresol 2,4-dinitrophenol 2-nitrophenol 4-nitrophenol Pentachlorophenol Phenol 2,4,6-trichlorophenol Base -neutral compounds: Acenaphthene Acenaphthylene Anthracene Benzidine Benzo(a)anthracene Benzo(a)pyrene 3,4 benzofluoranthene Benzo(ghi)perylene Benzo(k)fluoranthene Bis (2-chloroethoxy) methane Bis (2-chloroethyl) ether Bis (2-chloroisopropyl) ether Bis (2-ethylhexyl) phthalate 4-bromophenyl phenyl ether Butyl benzyl phthalate 2-chloronaphthalene 4-chlorophenyl phenyl ether Chrysene Di-n-butyl phthalate Di-n-octyl phthalate Dibenzo(a,h)anthracene 1,2-dichlorobenzene 1,3-dichlorobenzene 1,4-dichlorobenzene 3,3-dichlorobenzidine Diethyl phthalate Dimethyl phthalate 2,4-dinitrotoluene 2,6-dinitrotoluene 1,2-diphenylhydrazine Fluoranthene Fluorene Hexachlorobenzene Hexachlorobutadiene Hexachlorocyclo-pentadiene Hexachloroethane Indeno(1,2,3-cd)pyrene Isophorone Naphthalene Nitrobenzene N-nitrosodi-n-propylamine N-nitrosodimethylamine N-nitrosodiphenylamine Phenanthrene Pyrene 1,2,4-trichlorobenzene Reporting. Test results shall be reported on DWR Form -A MR-PPA1 (or in a form approved by the Director) by December 31st of each designated sampling year. The report shall be submitted to the following address: NC DENR / DWR / Central Files, 1617 Mail Service Center, Raleigh, North Carolina 27699-1617. Page 6 of 7 Town of Murphy VVWTP Latitude: Longitude: USGS Quad: Stream Class: Receiving Stream: Permitted Flow: 35°05'51" 84°02'29" Murphy, N.C. C Hiwassee River 1.4 MGD Sub -Basin: HUC: 04-05-02 060200020705 Facility Location NC0020940 Page 7 of 7 ASHEVILLE E aylnoS: ;aa5�na t Raleigh, NC 27699.1617 Notice of Intent to Issue a NPDES mat ater The North Carolina En- viro mental Manage- ment Co ission _pQ oo-- poses to Jssssue wastewater. soh e it to the pets s¢¢ Iis e1 e belo>1r, n Comments n the proposed ermtt wi`I be ; pt c��nt DI;°h df e� lt�hh shhe e' e. vs o aWnte al•. Itty `(D +Q `e . 4 Lob! . be a n cant e ree':of pu&�wi nter- es Pleas m, _ com- f[tents�. andr�or. informs. tjon. r c uest5:, B1NQ at t o aabb- vee ar ress.min- v SS e•CW .a� 512R1: eegp - 'lto vie ia: format(oi�-on flt .1dQ�Q- Tonal:.ive ilnfoljClato1 t�1lS fa d Icliw s� •o1- our once; e p 8dar or yv�°kca un (919) p00Z. 3so..T wn 01 Mut- of `NP _ u er .tie C 2r � t cH Imr water ao- ,was ee Riv a Ba'sin. Fi� wassee (1111r)st, 29, 2013 C1TIZENTIIMES VOICE OF THE MOUNTAINS • CTITZEN TIMES.com AFFIDAVIT OF PUBLICATION BUNCOMBE COUNTY SS. NORTH CAROLINA Before the undersigned, a Notary Public of said County and State, duly commissioned, qualified and authorized by law to administer oaths, personally appeared Rene Simpson, who, being first duly sworn, deposes and says: that she is the Legal Billing Clerk of The Asheville Citizen -Times, engaged in publication of a newspaper known as The Asheville Citizen -Times, published, issued, and entered as first class mail in the City of Asheville, in said County and State; that she is authorized to make this affidavit and sworn statement; that the notice or other legal advertisement, a true copy of which is attached hereto, was published in The Asheville Citizen -Times on the following date: August 29th, 2013. And that the said newspaper in which said notice, paper, document or legal - advertisement was published was, at the time of each and every publication, a newspaper meeting all of the requirements and qualifications of Section 1-597 of the General Statues of North Carolina and was a qualified newspaper within the meaning of Section 1-597 of the General Statutes of North Carolina. • (Signe re of person ing 'rdavit) Sworn to and subscribed before me the 29th day of August, 2013. Signed this 29t'' day of August, 2013 Qpe4Qee0oessa0Sg, otary Pub ic) �\() J�Y My Co ission expires the 5th day of October, 201.,,, v, j,% (828) 232-5830 I (828) 253-5092 FAX 14 O. HENRY AVE. I P.O. BOX 2090 I ASHEVILLE, NC 28802 ( (800) 800-4204 e) GANVER Vol PUBLIC e C.)44 o0e E O;td�,. �Dte7itl�$@tn�c DENR/DWR FACT SHEET FOR NPDES PERMIT DEVELOPMENT NPDES Permit NC0020940 Facility Information Applicant/Facility Name: Town of Murphy/ Murphy WWTP Applicant Address: P.O. Box 150; Murphy, North Carolina 28802 Facility Address: Payne Street; Murphy, North Carolina 28337 Permitted Flow 1.4 MGD Type of Waste: Domestic (98 %) and industrial (2 %) with pretreatment program Facility/Permit Status: Class III / Renewal County: Cherokee County Miscellaneous Receiving Stream: Hiwassee River Regional Office: Asheville (ARO) Stream Classification: C State Grid / USGS Quad: G2SE 303(d) Listed? No Permit Writer: Teresa Rodriguez HUC: 060200020705 Date: 8/13/2013 Drainage Area (mi2): 956 �.ex ,` '''' .:, f` Lat. 35° 05' 51" N Long. 84° 02' 29" W s7Q10 (cfs) 96.9 w7Q10 (cfs) 113 30Q2 (cfs) 245 Average Flow (cfs): 956 IWC (%): 2.2 SUMMARY The Town of Murphy currently operates a Class III WWTP with a permitted flow of 1.4 MGD. Plant upgrades were completed in 2012 to convert an existing digester into a chlorine contact chamber, convert an abandon basin into a digester, and to install new chlorination and dechlorination systems. The existing WWTP consists of: bar screen, dual SBR system, post equalization basin, chlorine disinfection, dechlorination, and two aerobic digester. The Town submitted a renewal application on March 7, 2012. The facility did not request any changes to the permit. Additional information on the application was requested on February 11, 2013 and received on August 12, 2013. RECEIVING STREAM This facility discharges to the Hiwassee River, classified C waters in the Hiwassee River watershed, HUC 060200020705. This segment of the Hiwassee River is currently rated as supporting for aquatic life. PRE-TREATMENT The facility has an active pretreatment program with 3 permitted Sills with total permitted flow of 0.032 MGD. The permit will continue to require the Town to continue to implement its pretreatment program. Pact Sheet NPI)I S NC0020940 Renewal Pau 1 DMR DATA REVIEW AND VEFIFICATION OF EXISTING CONDITIONS The permit includes limits for BOD, TSS, Fecal Coliform, TRC, pH, total residual chlorine, total cyanide, total mercury, and effluent toxicity (Chronic, Pass/Fail, 2.2%) and requires monitoring for ammonia, total nitrogen, total phosphorus, temperature, total silver, and priority pollutants. DMR data were reviewed for the period of January 2008 to November 2012. During 2009, 2010 and 2011 the facility experienced difficulties meeting total suspended solids, fecal coliform and total residual chlorine limits. Numerous violations were issued for these parameters within this time. ,An SOC was issued on May 12, 2013 with relaxed limits for fecal coliform and TSS. The SOC expired on October 28, 2012. Modifications to the POTW were completed in 2010 to improve solids handling and replace the chlorination/dechlorination system. Violations of TSS and BOD weekly average and monthly average limits occurred after the expiration of the SOC in November and December of 2011 and again in March of 2012. The facility has consistently meet TSS and BOD limits since March 2012. Reasonable Potential Analysis A reasonable potential analysis was performed for cyanide, zinc, copper and silver. Silver was the only parameter that showed reasonable potential. Silver is an action level standard therefore no limit will be implemented. See attached RPA results spreadsheet. Mercury Evaluation Following the 2013 mercury permitting guidance established for the implementation of the statewide Mercury TMDL the Division evaluated five years of mercury data to determine the need for a mercury limit. If a limit is necessary, the limit will be the most stringent of the water quality based (WQBEL) or the technology based (TBEL). Based on a IWC of 2.2 the WQBEL is 548 ng/L and according to the permitting strategy the TBEL is 47 ng/L. 2008 2009 2010 2011 2012 Average concentration (ng/L) < 200 210 < 200 208 213 Maximum concentration (ng/L) < 200 600 < 200 400 700 The maximum value reported exceeds both WQBEL and TBEL, since the TBEL limit is more stringent a limit of 47 ng/L as an annual average will be implemented in the permit replacing the WQBEL in the current permit. A Mercury Minimization Plan is not required for this facility since it discharges Tess than 2 MGD. Previous analyses were performed using EPA Method 245 which has a detection level of 200 ng/L. The permit will require the use of EPA Method 1631. Priority Pollutant Analysis The permit requires an annual pollutant scan of the effluent. The following parameters were detected in the PPA. Chloroform and bis(2-ethylexyl)phthalate were detected in the samples. The concentrations detected on these two parameters were relatively low and do not exceed criteria. Aquatic Toxicity Testing Permit requires chronic toxicity, ceriodaphnia dubia, 2.2%, the months of March, June, September and December. The facility consistently passed the toxicity tests. Instream Monitoring The permit does not include requirements for instream monitoring. Fact Sheet NPDES NC0020940 Renewal Page Limits Summary Table 2 — Limits and Monitoring Requirements Parameter Current Limit Basis Proposed changes BOD, TSS 30/45 mg/I monthly/weekly Secondary treatment limits 15A 2B .0400 No change Fecal Coliform 200/400 /100 ml monthly/weekly WQBEL, 15A NCAC 2B .0200 No change TRC 28 µg/I daily max WQBEL, 15A NCAC 2B .0200 No change Total Cyanide 22 µg/I weekly average WQBEL, 15A NCAC 2B .0200. DWR policy on calculation of acute limits now uses 1Q10 to calculate limit. Limit and monitoring will be removed as per reasonable potential results. Total Mercury 0.6 µg/L WQBEL, 15A NCAC 2B .0200 As per implementation of the Statewide Mercury TM DL new TBEL limit of 0.047 µg/L Chronic Toxicity P/F at 2.2 % 15A NCAC 2B .0500 No change Total Silver No limit AL, 15A NCAC 2B .0200 Continue monitoring Ammonia Monitor Allowable > 35 mg/I No change Temperature Monitor DWQ policy No change Total Nitrogen Monitor DWQ policy No change Total Phosphorus Monitor DWQ policy No change WQBEL — Water Quality Based Effluent Limits TBEL—Technology Based Effluent Limits AL — Action Level standard PROPOSED CHANGES 1. Based on the 2013 Mercury Permitting Guidance and an evaluation of five years of mercury data, a new technology based effluent limit will replace the water quality based effluent limit in the current permit. The new limit of 47 ng/I will be an annual average limit. The mercury test shall be EPA Method 1631 E. 2. As a result of the reasonable potential analysis the limit and monitoring for cyanide was removed from the permit. PROPOSED SCHEDULE FOR PERMIT ISSUANCE Draft Permit to Public Notice: August 27, 2013 Permit Scheduled to Issue: October 21, 2013 NPDES DIVISION CONTACT If you have questions regarding any of the above information or on the attached permit, please contact Teresa Rodriguez at 919-807-6387. Pact Sheet NPDES N000209410 Renewal Pate 3 NAME: REGIONAL OFFICE COMMENTS DATE: k/27//5 NAME: DATE: SUPERVISOR: DATE: NAME: DATE: Fact Sheet NPDES NC0020940 Renewal Page 4 Town of Murphy NC0020940 REASONABLE POTENTIAL ANALYSIS Qw (MGD) = 1.40 IQIOS(cfs)= 79.11 7Q 1 OS (cfs) = 96.90 7QIOW (cfs)= 113.00 30Q2 (cfs) = 245.00 Avg. Stream Flow, QA (cfs) = 956.00 Receiving Stream: Hiwassee River WWTP/WTP Class: Murphy WWTPIIII IWC ® IQ1OS = 2.67% IWC (a3 7Q 10S = 2.19% IWC7Q1OW= 1.88% IWC aC3 30Q2 = 0.88% IWC (a3 QA = 0.23% Stream Class: C Outfall 001 Qw=1.4MGD CHRONIC TEST CONCENTRATION = 2.2% PARAMETER TYPE (1) STANDARDS & CRITERIA (2) J . Z = REASONABLE POTENTIAL RESULTS RECOMMENDED ACTION NC WQS / Chronic Applied Standard % FAV / Acute n # Det. Max Pred Allowable Cw Cw Copper(AL) NC 7 FW(7Q10s) 7.3 ug/L 11 2 293 Acute: 273.4 _ _________ _ — _ Chronic: 319.E No value > Allowable Cw No RP ___ ______ — —-- — --- _- - - - Cyanide NC 5 FW(7Q10s) 22 10 ug/L 200 50 30.0 Acute: 824.0 _ _________ _ __ Chronic: 228.3 No value > Allowable Cw No RP _— — ___ _ ____ _ — _ -— Sliver (AL) NC 0.06 FW(7Q10s) 1.23 ug/L 200 3 35.250 Acute: 46.067 _ _ _ _ _ _ _ _ _ _ _ _ _ Chronic: 2.740 18 value(s) > Allowable Cw Continue monitoring. No limit - Action Level standard. _ _ _ _ — _ — —_— --_ --------- - Zinc (AL) NC 50 FW(7Q10s) 67 ug/L 11 11 482.4 Acute: 2,509.4 _ _ _ _ _ _ _ _ _ _ _ — _ Chronic: 2,283.1 No value > Allowable Cw No RP _ _ _ _ _ _ _ _ _ --- — _ — — - - 0 0 N/A Acute: - ------------ Chronic: ---_.— — _ _ — — — - ----- ---- 0 0 N/A Acute: - - ------------------------ Chronic: -------------- 0 0 N/A Acute: - ------------ Chronic: — —--—-------------------- 0 0 N/A Acute: Chronic: Paget of1 NC0020940 RPA Feb 2013.xlsm. rpa 8/14/2013 REASONABLE POTENTIAL ANALYSIS 9 Copper (AL) Date Data BDL=1/2DL Results Std Dev. Mean 50 50 C.V. • 50 25 n • 10 5 27 27 Mult Factor = • 10 5 Max. Value < 10 5 Max. Pred Cw • 10 5 < 10 5 • 10 5 < 10 5 < 10 5 USE ONLY "PASTE SPECIAL - Values" WITH "COPY" 14.9027 12.9091 1.1544 11 5.85 50.0 ug/L 292.5 ug/L 10 Cyanide Date Data BDL=1/2DL Results 1 1 /2/2008 11 11 Std Dev. 3.7321 2 1/9/2008 5 5 Mean 6.40 3 1/16/2008 11 11 C.V. 0.5836 4 1/23/2008 13 13 n 200 5 1/30/2008 5 5 6 2/6/2008 5 5 7 2/13/2008 8 5 8 2/20/2008 9 5 9 2/27/2008 5 5 10 3/5/2008 5 5 11 3/12/2008 5 5 12 3/19/2008 10 5 13 3/26/2008 5 5 14 4/2/2008 5 5 15 4/9/2008 7 5 16 4/16/2008 5 5 17 4/23/2008 5 5 18 4/30/2008 8 5 19 5/7/2008 6 5 20 5/14/2008 9 5 21 5/21/2008 6 5 22 5/28/2008 11 11 23 5/29/2008 11 11 24 6/4/2008 6 5 25 6/11/2008 9 5 26 6/18/2008 9 5 27 6/25/2008 5 5 28 6/26/2008 5 5 29 7/1/2008 5 5 30 7/9/2008 5 5 31 7/16/2008 5 5 32 7/23/2008 5 5 33 7/29/2008 8 5 34 8/6/2008 5 5 35 8/13/2008 10 5 36 8/20/2008 5 5 37 8/27/2008- 5 5 38 9/3/2008 11 11 39 9/10/2008 11 11 40 9/17/2008 8 5 41 9/24/2008 7 5 42 10/1/2008 9 5 43 10/8/2008 5 5 44 10/15/2008 7 5 45 10/22/2008 5 5 46 10/29/2008 5 5 47 11 /5/2008 5 5 48 11/10/2008 5 5 49 11/19/2008 7 5 50 11/24/2008 9 5 51 12/3/2008 5 5 52 12/10/2008 5 5 53 12/17/2008 5 5 54 12/22/2008 7.3 5 55 12/30/2008 5 5 56 1/7/2009 5 5 57 1/14/2009 5 5 58 1/21/2009 6.5 5 59 1/28/2009 5 5 60 2/4/2009 6.2 5 61 2/11/2009 9.3 5 62 2/18/2009 8.2 5 63 2/25/2009 5 5 64 3/4/2009 7 5 65 3/11/2009 5 5 66 3/18/2009 7.7 5 67 3/24/2009 5 5 68 4/1/2009 12 12 69 4/8/2009 5 5 USE ONLY "PASTE SPECIAL - Values" WITH "COPY" Mult Factor = 1.20 Max. Value 25.0 ug/L Max. Pred Cw 30.0 ug/L NC0020940 RPA Aug 2013.xlsm, data - 1 - 8/20/2013 REASONABLE POTENTIAL ANALYSIS 70 4/15/2009 71 4/22/2009 72 4/28/2009 73 5/6/2009 74 5/13/2009 75 5/20/2009 76 5/27/2009 77 6/3/2009 78 6/10/2009 79 6/17/2009 80 6/24/2009 81 6/30/2009 82 7/8/2009 83 7/15/2009 84 7/22/2009 85 7/28/2009 86 8/5/2009 87 8/12/2009 88 8/19/2009 89 8/26/2009 90 9/1/2009 91 9/9/2009 92 9/16/2009 93 9/23/2009 94 9/30/2009 95 10/7/2009 96 10/14/2009 97 10/21/2009 98 10/28/2009 99 11/4/2009 100 11 /11 /2009 101 11/18/2009 102 11/24/2009 103 12/2/2009 104 12/9/2009 105 12/16/2009 106 12/22/2009 107 12/29/2009 108 1/6/2010 109 1 /13/2010 110 1/20/2010 111 1/27/2010 112 2/3/2010 113 2/10/2010 114 2/17/2010 115 2/24/2010 116 3/3/2010 117 3/10/2010 118 3/17/2010 119 3/24/2010 120 3/31/2010 121 4/7/2010 122 4/14/2010 123 4/21/2010 124 4/27/2010 125 5/6/2010 126 5/12/2010 127 5/19/2010 128 5/26/2010 129 6/2/2010 130 6/9/2010 131 6/16/2010 132 6/23/2010 133 6/24/2010 134 6/30/2010 135 7/7/2010 136 7/14/2010 137 7/21/2010 138 7/28/2010 139 8/4/2010 140 8/11/2010 141 8/18/2010 142 8/25/2010 143 9/1/2010 5 5 5 5 5 5 5 5 5.9 5 8 5 10 10 10 10 20 20 5.3 5 25 25 9.5 5 24 24 5 5 5 5 20 20 12 12 10 10 9.2 5 17 17 8.5 5 10 10 7.2 5 5 5 8.5 5 8.4 5 5 5 7.7 5 11 11 13 13 5 5 5 5 12 12 12 12 5 5 6.2 5 5 5 12 12 5 5 5 5 11 11 5 5 16 16 5 5 7.6 5 10 10 8.6 5 8.6 5 7 5 5 5 8 5 5 5 8.8 5 5 5 5 5 5 5 5 5 6.8 5 5 5 5 5 5 5 5.1 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 20 20 5 5 5 5 -2- NC0020940 RPA Aug 2013.xlsm, data 8/2012013 REASONABLE POTENTIAL ANALYSIS 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 144 9/8/2010 145 9/15/2010 146 9/22/2010 147 9/23/2010 148 9/29/2010 149 10/6/2010 150 10/13/2010 151 10/20/2010 152 10/27/2010 153 11/3/2010 154 11/10/2010 155 11/17/2010 156 11 /23/2010 157 12/1/2010 158 12/8/2010 159 12/15/2010 160 12/20/2010 161 12/29/2010 162 1/5/2011 163 1/12/2011 164 1/19/2011 165 1/26/2011 166 2/2/2011 167 2/9/2011 168 2/16/2011 169 2/23/2011 170 3/2/2011 171 3/10/2011 172 3/16/2011 173 3/23/2011 174 3/30/2011 175 3/31/2011 176 4/7/2011 177 4/13/2011 178 4/20/2011 179 4/27/2011 180 5/4/2011 181 5/11/2011 182 5/18/2011 183 5/25/2011 184 6/1/2011 185 6/8/2011 186 6/17/2011 187 6/21/2011 188 6/29/2011 189 7/6/2011 190 7/13/2011 191 7/20/2011 192 7/27/2011 193 8/3/2011 194 8/10/2011 195 8/17/2011 196 8/24/2011 197 8/31/2011 198 9/7/2011 199 9/14/2011 200 9/21 /201 1 8.6 5 • 5 5 <! 5 5 < ! 5 5 < 5 5 8.6 5 • 5 5 5.8 5 • 50 25 • 5 5 8 .< 5 5 5 5 5 5 5 5 5 5 5 9.9 5 6.1 5 < 5 5 < 5 5 < 5 5 5 5 6.8 5 5 5 6.2 5 5.1 5 5 5 5 5 5 5 5 5 8.8 5 7.8 5 17 17 < 5 5 7.3 5 8.2 5 < 5 5 < 5 5 < 5 5 8.9 5 • 5 5 7.1 5 6.3 5 < 5 5 • 5 5 8.8 5 < 5 5 • 5 5 • 5 5 14 14 10 5 12 12 10 5 ▪ 5 5 <' 5 5 < 5 5 5 5 9/28/2011 < 5.00 5 10/5/2011 16.00 16 2/8/2012 < 5.00 5 2/15/2012 5.10 5 2/22/2012 12.00 12 2/29/2012 < 5.00 5 3/7/2012 < 5.00 5 3/14/2012 < 5.00 5 3/21/2012 5.70 5 3/28/2012 < 5.00 5 4/4/2012 < 5.00 5 4/11/2012 8.40 5 4/18/2012 < 5.00 5 4/25/2012 < 5.00 5 5/2/2012 5.60 5 5/9/2012 5.30 5 5/16/2012 < 5.00 NC0020940 RPA Aug 2013.xlsm, data 8/20/2013 REASONABLE POTENTIAL ANALYSIS 5/23/2012 < 5.00 5 5/31/2012 5.10 5 6/6/2012 8.70 5 6/13/2012 8.40 5 6/20/2012 10.00 10 6/27/2012 7.60 5 7/5/2012 < 5.00 5 7/11/2012 7.90 5 7/18/2012 7.90 5 7/25/2012 11.00 11 8/1/2012 6.40 5 8/8/2012 5.10 5 8/15/2012 < 5.00 5 8/22/2012 11.00 11 8/29/2012 < 5.00 5 9/5/2012 < 5.00 5 9/12/2012 12.00 12 9/19/2012 12.00 12 9/26/2012 < 50.00 25 10/3/2012 < 5.00 5 10/10/2012 7.10 5 10/17/2012 8.40 5 10/24/2012 < 5.00 5 10/31/2012 < 5.00 5 11/8/2012 9.90 5 11/14/2012 < 5.00 5 11/20/2012 5.80 5 11/28/2012 < 5.00 5 -4- NC0020940 RPA Aug 2013.xlsm, data 8/20/2013 REASONABLE POTENTIAL ANALYSIS Date Mercury Data BDL=1/2DL Results < 200 100 Std Dev. 40.4715 < 200 100 Mean 104.5000 < 200 100 C.V. 0.3873 < 200 100 n 200 < 200 100 < 200 100 Mult Factor = < 200 100 Max. Value < 200 100 Max. Pred Cw USE ONLY "PASTE SPECIAL - Values" WITH "COPY" < 200 100 < 200 100 < 200 100 < 200 100 < 200 100 < 200 100 < 200 100 < 200 100 < 200 100 < 200 100 < 200 100 < 200 100 < 200 100 < 200 100 < 200 100 < 200 100 < 200 100 < 200 100 < 200 100 < 200 100 < 200 100 < 200 100 < 200 100 < 200 100 < 200 100 < 200 100 < 200 100 < 200 100 < 200 100 < 200 100 < 200 100 < 200 100 < 200 100 < 200 100 < 200 100 < 200 100 < 200 100 < 200 100 < 200 100 < 200 100 < 200 100 < 200 100 < 200 100 < 200 100 < 200 100 < 200 100 < 200 100 < 200 100 < 200 100 < 200 100 < 200 100 < 200 100 < 200 100 < 200 100 < 200 100 < 200 100 300 300 < 200 100 < 200 100 < 200 100 < 200 100 1.13 600.0 ng/L 678.0 ng/L Silver (AL) Date Data BDL=1/2DL Results 1 5 2.5 Std Dev. 6.0198 2 E 5 2.5 Mean 4.3240 3 5 2.5 C.V. 1.3922 4 z? 5 2.5 n 200 5 ' . 5 2.5 6 5 2.5 MuIt Factor = 1.41 7 5 2.5 Max. Value 25.000 ug/L 8 5 2.5 Max. Pred Cw 35.250 ug/L USE ONLY "PASTE SPECIAL - Values" W1TH "COPY" 9 5 2.5 10 5 2.5 11 5 2.5 12 5 2.5 13 5 2.5 14 5 2.5 15 5 2.5 16 5 2.5 17 5 2.5 18 5 2.5 19 5 2.5 20 5 2.5 21 5 2.5 22 5 2.5 23 5 2.5 24 5 2.5 25 5 2.5 26 5 2.5 27 5 2.5 28 5 2.5 29 5 2.5 30 5 2.5 31 5 2.5 32 5 2.5 33 5 2.5 34 5 2.5 35 5 2.5 36 5 2.5 37 5 2.5 38 5 2.5 39 ? 5 2.5 40 ;;; 5 2.5 41 <, 5 2.5 42 5 2.5 43 5 2.5 44 5 2.5 45 5 2.5 46 5 2.5 47 5 2.5 48 5 2.5 49 5 2.5 50 - 5 2.5 51 5 2.5 52 5 2.5 53 5 2.5 54 < 5 2.5 555 2.5 56 5 2.5 57 < 5 2.5 58 5 2.5 59 5 2.5 60 5 2.5 61 5 2.5 62 5 2.5 63 5 2.5 64 5 2.5 65 14 14 66 5 2.5 67 5 2.5 68 5 2.5 69 5 2.5 -1- NC0020940 RPA Aug 2013.xlsm, data 8/20/2013 REASONABLE POTENTIAL ANALYSIS 70 < 200 100 71 < 200 100 72 < 200 100 73 < 200 100 74 < 200 100 75 < 200 100 76 < 200 100 77 < 200 100 78 < 200 100 79 600 600 80 < 200 100 81 < 200 100 82 < 200 100 83 < 200 100 84 < 200 100 85 < 200 100 86 < 200 100 87 < 200 100 88 < 200 100 89 < 200 100 90 < 200 100 91 < 200 100 92 < 200 100 93 < 200 100 94 < 200 100 95 < 200 100 96 < 200 100 97 < 200 100 98 < 200 100 99 < 200 100 100 < 200 100 101 < 200 100 102 < 200 100 103 < 200 100 104 < 200 100 105 < 200 100 106 < 200 100 107 < 200 100 108 < 200 100 109 < 200 100 110 < 200 100 111 < 200 100 112 < 200 100 113 < 200 100 114 < 200 100 115 < 200 100 116 < 200 100 117 < 200 100 118 < 200 100 119 < 200 100 120 < 200 100 121 < 200 100 122 < 200 100 123 < 200 100 124 < 200 100 125 < 200 100 126 < 200 100 127 < 200 100 128 < 200 100 129 < 200 100 130 < 200 100 131 < 200 100 132 < 200 100 133 < 200 100 134 < 200 100 135 < 200 100 136 < 200 100 137 < 200 100 138 < 200 100 139 < 200 100 140 < 200 100 141 < 200 100 142 < 200 100 143 < 200 100 70 <-. 5 2.5 71 >>`< 5 2.5 72 <! 5 2.5 73 < 5 2.5 74 <;! 5 2.5 75 <€ 5 2.5 76 <. 5 2.5 77 <. 5 2.5 78 < 5 2.5 79 < 5 2.5 80 <! 5 2.5 81 <; 5 2.5 82 < 5 2.5 83 < 5 2.5 84 s < 5 2.5 85 <" 5 2.5 86 < 5 2.5 87 < 5 2.5 88 < 5 2.5 89 < 5 2.5 90 < 5 2.5 91 < 5 2.5 92 < 5 2.5 93 < 5 2.5 94 < 5 2.5 95 < 5 2.5 96 < 5 2.5 97 < 5 2.5 98 < 5 2.5 99 < 5 2.5 100 < 5 2.5 101 < 5 2.5 102 < 5 2.5 103 < 5 2.5 104 6.8 6.8 105 < 5 2.5 106 < 5 2.5 107 < 5 2.5 108 < 5 2.5 109 < 5 2.5 110 < 5 2.5 111 < 5 2.5 112 < 5 2.5 113 < 5 2.5 114 < 5 2.5 115 < 5 2.5 116 < 5 2.5 117 < 5 2.5 118 < 5 2.5 119 < 5 2.5 120 < 5 2.5 121 < 5 2.5 122 < 5 2.5 123 < 5 2.5 124 < 5 2.5 125 < 5 2.5 126 < 5 2.5 127 < 5 2.5 128 < 5 2.5 129 < 5 2.5 130 < 5 2.5 131 < 5 2.5 132 < 5 2.5 133 < 5 2.5 134 < 5 2.5 135 < 5 2.5 136 < 5 2.5 137 < 5 2.5 138 < 5 2.5 139 < 5 2.5 140 < 5 2.5 141 < 5 2.5 142 < 5 2.5 143 < 5 2.5 NC0020940 RPA Aug 2013.xlsm, data 8/20/2013 REASONABLE POTENTIAL ANALYSIS 144 < 200 100 145 < 200 100 146 < 200 100 147 < 200 100 148 < 200 100 149 < 200 100 150 < 200 100 151 < 200 100 152 < 200 100 153 < 200 100 154 < 200 100 155 < 200 100 156 < 200 100 157 < 200 100 158 < 200 100 159 < 200 100 160 < 200 100 161 < 200 100 162 < 200 100 163 < 200 100 164 < 200 100 165 < 200 100 166 < 200 100 167 < 200 100 168 < 200 100 169 < 200 100 170 < 200 100 171 < 200 100 172 < 200 100 173 < 200 100 174 < 200 100 175 < 200 100 176 < 200 100 177 < 200 100 178 < 200 100 179 < 200 100 180 < 200 100 181 < 200 100 182 < 200 100 183 < 200 100 184 < 200 100 185 < 200 100 186 < 200 100 187 < 200 100 188 < 200 100 189 < 200 100 190 < 200 100 191 < 200 100 192 < 200 100 193 < 200 100 194 < 200 100 195 < 200 100 196 < 200 100 197 < 200 100 198 < 200 100 199 < 200 100 200 300 300 144 5 2.5 145 <" 5 2.5 146 < 5 2.5 147 14 14 148 << 5 2.5 149 < 5 2.5 150 < 5 2.5 151 <' 5 2.5 152 < 5 2.5 153 < 5 2.5 154 < 5 2.5 155 < 5 2.5 156 < 5 2.5 157 < 5 2.5 158 < 5 2.5 159 < 5 2.5 160 < 5 2.5 161 < 5 2.5 162 < 5 2.5 163 < 5 2.5 164 < 5 2.5 165 < 5 2.5 166 < 5 2.5 167 < 5 2.5 168 < 5 2.5 169 < 5 2.5 170 < 50 25 171 < 50 25 172 < 50 25 173 < 50 25 174 < 50 25 175 < 5 2.5 176 < 5 2.5 177 < 5 2.5 178 < 5 2.5 179 < 5 2.5 180 < 5 2.5 181 < 5 2.5 182 < 5 2.5 183 < 50 25 184 50 25 185 50 25 186 K' 50 25 187 ;; ` 50 25 188 5 2.5 189 5 2.5 190 5 2.5 191 5 2.5 192 » 50 25 193 50 25 194 50 25 195 50 25 196 50 25 197 5 2.5 198 i',<. 5 2.5 199 `< 5 2.5 200 < 5 2.5 < 200. < 200. < 200 < 200 < 200 < 200 < 200 < 200 < 200 700 < 200 < 200 < 200 < 200 < 200 < 200 < 200 < 50 25 < 50 25 < 50 25 < 50 25 < 50 25 < 50 25 50 25 50 25 50 25 50 25 50 25 ▪ 50 25 < 50 25 50 25 50 25 < 50 25 <. 50 25 NC0020940 RPA Aug 2013.xlsm, data 8/20/2013 REASONABLE POTENTIAL ANALYSIS < 200 < 200 < 200 < 200 < 200 < 200 < 200 < 200 < 200 < 200 < 200 < 200 < 200 < 200 < 200 < 200 < 200 < 200 < 200 < 200 < 200 < 200 < 200 < 200 < 200 < 200 < 200 300 50 25 < 50 25 < 50 25 <` 50 25 50 25 50 25 50 25 50 25 50 25 5 2.5 5 2.5 5 2.5 5 2.5 5 2.5 50 25 50 25 50 25 50 25 5 2.5 5 2.5 5 2.5 5 2.5 5 2.5 5 2.5 5 2.5 5 2.5 5 2.5 NC0020940 RPA Aug 2013.xlsm, data - 4 - 8/20/2013 NPDES/Aquifer Protection Permitting Unit Pretreatment Information Request Form PERMIT WRITER COMPLETES THIS PART: PERMIT WRITERS - AFTER you get this form back Check that from PERCS: all apply Notify PERCS if LTMP/STMP data we said should be Date of Request 2/12/2013 municipal renewal x on DMRs is not really there, so we can get it for you Requestor Teresa Rodriguez new industries (or NOV POTVV). Facility Name Town of Murphy WWTP expansion - Notify PERCS if you want us to keep a specific POC Permit Number NC0020940 Speculative limits in LTMP/STMP so you will have data for next permit Region Asheville stream reclass. renewal. - Email PERCS draft permit, fact sheet, RPA. Basin _Hiwassee outfall relocation - Send PERCS paper copy of permit (w/o NPDES 7Q10 change boilerplate), cover letter, final fact sheet. Email RPA if other changes. other check applicable PERCS staff: Other Comments to PERCS: BRD, CPF, CTB, FRB, TAR - Sarah Morrison (807-6310) x CHO, HIW, LUM, LTN, NES, NEW, ROA, YAD - Monti Hassan (807-6314) PERCS Status PRETREATMENT STAFF COMPLETES THIS PART: of 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 V 3) facility has Sills and DWQ approved Pretreatment Program (list "DEV" if program still under development) 3a) Full Program with LTMP V 3b) Modified Program with STMP 4) additional conditions regarding Pretreatment attached or listed below Flow, MGD Permitted Actual Time period for Actual STMP time frame: Industrial 0, 03 ` _ 0 j 1) IC)'')Most recent: fli0 Q — t1-c 1 Uncontrollable n/a Next Cycle: t �, POC in LTMPI , STMP Parameter of Concern (POC) Check List POC due to NPDES/ Non- Disch Permit Limit Required by EPA' Required by 503 Sludge** POC due to SIU*** POTW POC (Explain below)**** STMP Effluent Freq LTMP Effluent Freq ✓ BOD (Jr).� V Q Q M VV TSS Y Y Q M Q = Quarterly V.," NH3 1— 4 Q M M = Monthly Arsenic LAINI 4 Q M 4 Cadmium 4 V 4 Q M 4 Chromium 4 tt �I II V 4 Q M 4 Copper q V 4 Q M I/ Cyanide V- L/ 4 Q M Is all data on DMRs? J Lead 4 t,/ 4 Q M YES V 'V Mercury ./ •—V 4 Q M NO (attach data) Molybdenum 4 Q M 4 Nickel q ✓ 4 Q M VSilver ✓ V- 4 Q M Selenium / 4 Q M I Zinc 4 V 4 Q M /s data in spreadsheet? Total Nitrogen ✓ 4 Q M YES (email to writer) Phosphorus VV 4 Q M NO 4 Q M 4 Q M 4 Q M 4 Q M *Always in the LTMP/STMP ** Only in LTMP/STMP if sludge and app or composte (dif POCs for incinerators) "** Only in LTMP/STMP while SIU still discharges to POTW **** Only in LTMP/STMP when pollutant is still of concern to POTW Comments to Permit Writer (ex., explanation of any POCs: info you have on IU related investigations into NPDES problems): Pretreatment request Murphy NC0020940.xlsx Revised: July 24. 2007 Commissioners Frank E. Dickey David C. Hilton Phi_Ilip R. Mattox Tout of 1urpJjp William N. Hughes, Mayor P.O. Box 130 Murphy, North Carolina 28906 (828) 837-2510 • Fax (828) 837-9612 town of murphy@frontiercom February 22, 2012 TO: Keith Haynes FROM: Scott Helton, Town of Murphy Subject: Murphy Plant Permit Mr. Haynes, Commissioners Sandra N. Sumpter Barbara R Vicknair Karen Watson This package contains the Plant Permit Renewal request for the Town of Murphy. I have included the permit renewal application, and the four chronic toxicity tests that we discussed. I will send you the PPA results as I receive them. Thanks for your time with this matter. If there is anything else you may need, just let me know and I will take care of it for you. Li [ FFB 2,8 2012 C)UAL'iY Sincerely, Scott Helton f P 32l - //35 WWTP ORC agE, Town of Murphy FEB 24 2012 Anna A. Payne, Town Manager - Cowan & Cowan, Attorneys Commissioners Frank E. Dickey David C. Hilton Phillip R. Mattox 1totun of liflurpbp William N. Hughes, Mayor P.O. Box 130 Murphy, North Carolina 28906 (828) 837-2510 • Fax (828) 837-9612 town of murphy@frontier.com February 29, 2012 Mrs. Dina Sprinkle NC DENR/DWQ/Point Source Branch 1617 Mail Service Center Raleigh, NC 27699-1617 Commissioners Sandra N. Sumpter Barbara P. Vcknair Karen Watson Subject: Town of Murphy, NPDES Permit # NC0020940, Permit Renewal, Sludge Management Plan The Town of Murphy is requesting renewal of its NPDES wastewater permit. The current permit took effect on October 1, 2007 and is due to expire August 31, 2012. The sludge generated by the Town of Murphy is still processed in aerobic digesters until oxidized and then it is run through our sludge press. Final disposal of sludge will be in the Cherokee County Landfill. All analyses and requirements are performed by the Town of Murphy to ensure local and state regulations are met. Sincerely, Anna Payne Town Manager Anna A. Payne, Town Manager - Cowan & Cowan, Attorneys Town of Murphy NPDES #: NC0020940 Headworks Short Term Monitoring Plan I. WWTP Diagram Influent Bar Screen Return Activated Sludge Digester Supernatant Post EQ Basin Chlorine Disinfect Effluent O Sludge Slud�,Q Aerobic Digester 1 Sludge Aerobic Digester 2 Sampling Points 1 - Influent (prior to all side streams!) 2 — Effluent (After Chlorination) 3 — SBRs (activated sludge) 4 — Sludge to Disposal O Sludge to Disposal File Name Town of Murphy STMP 2010 Printed: February 29, 2012, 4:16 PM Modeled after: Chapter 4, Appendix 4-A. DWQ Model Revision Date: July 29, 2004 Page 4