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Home My WebLink AboutNC0086681_Draft Permit_20171213Water Resources ENVIRONMENTAL QUALITY ROY COOPER Goi ei not MICHAEL S RAGAN Sea ermy LINDA CULPEPPER Gi[ei on Duecloi December 13, 2017 Michael Brillhart, County Manager Camden County 103 Water Plant Drive Camden, North Carolina 27921 Subject: NPDES Permit - DRAFT Review Permit NCO086681 South Camden Water and Sewer District WTP 103 Water Plant Drive, Camden Camden County Dear Mr. Brillhart: In response to your request to renew the subject NPDES permit (dated April 14, 2017), the Division of Water Resources (DWR or the Division) hereby transmits this draft for your review and comment. Please review this document carefully to assure your understanding of the permit limits and monitoring conditions, and to correct errors, if any. Concurrent with this notification, the Division will solicit public comment on this draft by publishing a notice in newspapers having circulation in the general Camden County area, as required by the NPDES Program. Please provide your written comments, if any, to me via email Doe.corporon@ncdenr.gov], or write to my attention care of NCDEQ / DWR / NPDES Program no later than January 5, 2018, approximately 30 days after receiving this letter. Your written comments are welcome, but are not mandatory. PROPOSED CHANGES FOR RENEWAL: 1. Downstream sampling location, previously designated "D," is hereby removed from the permit. Instream sampling in proximity to the outfall [samples S1, S2 and S5] have been deemed sufficient to evaluate receiving -stream impact (see DWR's letter, May 26, 2017). 2. Updated Facility Location Map to reflect revised sample locations. 3. Per latest WTP permitting strategies, monitoring for Temperature and Dissolved Oxygen [effluent and instream] are hereby discontinued -- no further monitoring required. 4. Zinc (Zn) data showed no reasonable potential to violate its water -quality standard. Furthermore, based on RP predicted concentrations reported < 50% of allowable, we have discontinued monitoring for Zinc. 5. Chromium (Cr) and Nickel (Ni) were not detected — discontinue monitoring from Chromium per permitting guidance. However, we note that samples for Total Nickel were analyzed at a practical quantitation level (PQL) of 5 ug/L, insufficiently low to consider Nickel's instream water -quality standard of 2 ug/L. Future analyses for Nickel must be conducted and reported at a PQL minimum of < 2 ug/L. Monitoring therefore will continue, but reduced from Monthly to Quarterly. Michael Brnllhart, County Manager South Camden Water and Sewer District Renewal Draft Dec2017 Page 2 of 2 6. Copper (Cu) effluent data showed no reasonable potential to violate its surface water quality standard, however, the receiving stream is impaired for Copper, therefore monitoring is hereby continued Quarterly, no limit; 7. WET -Testing text has been updated; 8. we have included regulatory citations for each permit section, Part I. 9. we have added text detailing eDMR, Section A. (5.). Division records show that you have successfully registered with the eDMR Program. Please be reminded that until the state's eDMR application is approved compliant with EPA's Cross - Media Electronic Reporting Regulation (CROMERR), all permittees must continue to submit hardcopy of DMRs as backup to eDMR reporting [see permit section A. (5.)]. Please be advised that the receiving stream, the Pasquotank River is formally listed as impaired [303d listed] for aquatic life. Should future data suggest that your facility is contributing to this impairment, the Director may reopen this permit to add Special Conditions and/or revise your permit Limits and Monitoring Conditions. Following the mandatory 30 -day public comment period, the Division will review all pertinent comments and take appropriate action prior to issuing your NPDES permit final. If you have questions concerning this draft, please e-mail me or call my direct line (919) 807-6394. Joe R. Corp on, L.G. DWR/ NP ES Permittin j/ Enclosure: NPDES Permit N�30086681 (permit DRAFT) he NPDES Program Files ec WaRO / SWPS, Robert Tankard (Draft and Fact Sheet) OCU, Maureen Kinney (Draft and Fact Sheet) ATB, Susan Meadows, Cindy Moore (Draft and Fact Sheet) STATE OF NORTH CAROLINA DEPARTMENT OF ENVIRONMENTAL QUALITY DIVISION OF WATER RESOURCES PERMIT TO DISCHARGE WASTEWATER UNDER THE NATIONAL POLLUTAT (NPDES) o In compliance with the provisions of North Carolina General -St and regulations promulgated and adopted by the,North Car Commission, and the Federal Water Pollution 0 is hereby South -Car �' 10 to receiving waters desig with effluent limitations, II, III and IV hereof. This permit shall become effective 161 Permit NCO086681 ATION SYSTEM 143-215.1, other lawful standards Environmental Management `Act as amended, ,to-discharge\ast6v ater fro \n outfall located at the en�Water\and Sewer District, WTP Fater Plant-�Drlve Camden Camden County P,asquotank River in the Pasquotank River Basin in accordance requirements, and other applicable conditions set forth in Parts I, ,2018. This permit and authorization to discharge shall expire at midnight on December 31, 2022. Signed this day 2018. Linda Culpepper, Interim Director Division of Water Resources By Authority of the Environmental Management Commission Page 1 of 8 Permit NCO086681 SUPPLEMENT TO PERMIT COVER SHEET All previous NPDES Permits issued to this facility, whether for operation or discharge are hereby revoked. As of this permit issuance, any previously issued permit bearing this number is no longer effective. Therefore, the exclusive authority to operate and discharge from this facility arises under the permit conditions, requirements, terms, and provisions included herein. Camden County is hereby authorized to: 1. continue to operate a wastewater treatment system applying Reverse Osmosis /Nanofiltration technology, in support of potable -water production �esign flow 1.44MGD) from groundwater sources utilizing treatment as; \ , Z/\ \\ • influent pump [currently 700 gpm]\\\ • two (2) each pre -filters [52-cartndges 55`m cr`ns]� • duel (2) RO Units [eight'(8)\ii odules w i/6 bundles each] • 2"a pass RO unit [eight (8) modules w/\ bundles`each] • (-'nncentrnted-tn_mitA ! i Potable Water: \ • forced dra'aerator [intrc • detention tank [9,000 Ral • pumps to elevE • gravity -feed to of CaCl, NaOH, Phosphate; chlorine (NaOCI)] system these facilities located at 103 Water Plant Drive, Camden, Camden County; and 2. discharge from said treatment works via Outfall 001 [extended offshore approximately 800 feet and fitted with a discharge diffuser], this location specified on the attached map, into the Pasquotank River [stream segment 30-3-(12)], a waterbody currently classified SB within subbasin 03-01-50 [HUC: 03010205] of the Pasquotank River Basin. Page 2 of 8 Permit NCO086681 PART I A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS [15A NCAC 02B 0400 et seq. and 02B.0500 et seq.] During the period beginning on the effective date of the permit and lasting until expiration, the Permittee is authorized to discharge reverse osmosis (RO) reject water through a diffuser via Outfall 001. Such discharges shall be limited, monitored, and reported 1 by the Permittee as specified below: Footnotes: 1. The Permittee shall submit monthly Discharge Monitoring Reports (DMRs) electronically using DWR's Electronic Discharge Monitoring Report [eDMR] Program, as detailed herein [see Section A (5.)] 2 Sample Locations E -Effluent, U -Upstream [background], for other sampling locations [S 1, S2, and S4, see Special Condition A (4.) Sl[BIMS Outfall 001A], S2 [BIMS Outfall 00113], S4 [BIMS Outfall 001D] 3 Total Residual Chlorine momtonng/lumt required oWy i chlorine or chlorine derivatives are used. The Division shall consider compliant all effluent TRC values reported below 50 ug/L However, the Permittee shall continue to record and report all values detected by a North -Carolina certified test methods (including field certified), even if these values fall below 50 ug/L 4 Whole Effluent Toxicity (WET) testing, Acute P/F (Mysidopsis bahia) @ 90%, January, April, July, and October [see A (2 )] Conditions: Effluent samples shall accurately reflect the physical and chemical character of the discharge. Discharge shall contain no floating solids or foam visible in other than trace amounts. Page 3 of 8 LIMITS MONITORING REQUIREMENTS EFFLUENT CHARACTERISTICS Monthly Daily Measurement Sample Sample (PARAMETER CODES) Average Maximum Frequency Type Location2 Flow, MGD 50050 /.-Continuous Recordin E \ g Total Residual Chlorine 3 50060 13 01/ 2/Month Grab E PH, standard units 00400 Not < 6.8 or, 8 5 Monthly., Grab S lES2,,S4 \ Conductivity, µmhos/cm 00095 �. \ \�' i 'Grab Grab \ /-Monthly Salinity, parts per thousand 00480- _. \' �\ \\ Monthly Grab E U S 1 S2 �S4 \ Ammonia Nitrogen, mg/L \00610 ~�� \� j �\Monthly Grab E Total Dissolved Solids, mg/L 70295 /j 'Monthly Grab E Turbidity, NTU ,00070 \ —�� Monthly Grab E , �\� Total Nickel, ttg/L `��\ 01'067\ �\�� Quarterly Grab E Total Copper, µg/L �� 01 042\ ��\ Quarterly Grab E Total Zinc, µg/L \'\01092 Quarterly Grab E Total Nitrogen, mg/L \Q06001 Quarterly Grab E Total Phosphorus, mg/L 00665 Quarterly Grab E WET Testing 4 TGE3E Quarterly Grab E Footnotes: 1. The Permittee shall submit monthly Discharge Monitoring Reports (DMRs) electronically using DWR's Electronic Discharge Monitoring Report [eDMR] Program, as detailed herein [see Section A (5.)] 2 Sample Locations E -Effluent, U -Upstream [background], for other sampling locations [S 1, S2, and S4, see Special Condition A (4.) Sl[BIMS Outfall 001A], S2 [BIMS Outfall 00113], S4 [BIMS Outfall 001D] 3 Total Residual Chlorine momtonng/lumt required oWy i chlorine or chlorine derivatives are used. The Division shall consider compliant all effluent TRC values reported below 50 ug/L However, the Permittee shall continue to record and report all values detected by a North -Carolina certified test methods (including field certified), even if these values fall below 50 ug/L 4 Whole Effluent Toxicity (WET) testing, Acute P/F (Mysidopsis bahia) @ 90%, January, April, July, and October [see A (2 )] Conditions: Effluent samples shall accurately reflect the physical and chemical character of the discharge. Discharge shall contain no floating solids or foam visible in other than trace amounts. Page 3 of 8 Permit NCO086681 A. (2.) ACUTE TOXICITY PASS/FAIL MONITORING (QUARTERLY) [15A NCAC 02B .0500 et seq.] The permittee shall conduct acute toxicity tests on a quarterly basis using protocols defined in the North Carolina Procedure Document entitled "Pass/Fail Methodology for Determining Acute Toxicity In A Single Effluent Concentration" (Revised -December 2010 or subsequent versions). The monitoring shall be performed as a Mysid Shrimp (Mysidopsis Bahia) 24-hour static test. The effluent concentration at which there may be at no time significant acute mortality is 90% (defined as treatment two in the procedure document). The tests will be performed during the months of January, April, July, and October. 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 f nal effluent discharge below all treatment processes. ,'X '� All toxicity testing results required as part of this permit condi ion\,will be entered on the Effluent Discharge Monitoring Form (MR -1) for the month in which it was performed, using the parameter code TGUE. Additionally, DWR Form AT -2 (onginal)is to be sent to the following address: Attention: North Carolina D Vision,of Water Resources Water Sciences Section/Aquatic Toxicology Branch -1.621 M Service Center, \ -Raleigh, NC\\27699�162I\ Completed Aquatic Toxicity Tes Fonns he W all be filed with thater Sciences Section no later than 30 days after the end of the eportin pe\ od for which the\report is made. Test data shall be complete and ac bra a'nd include all supporting chemical/physical measurements performed in association�with the toxic, `ty tests, as well as all dose/response data. Total residual chlorine of the effluent toxicity samp�e m ust 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 Water Sciences Section at the address cited above. Should the permittee fail to monitor during a month in which toxicity monitoring is required, then monthly monitoring will begin immediately. Upon submission of a valid test, this monthly test requirement will revert to quarterly in the months specified above. Should any test data from either these monitoring requirements 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. NOTE: Failure to achieve test conditions as specified in the cited document, such as minimum control organism survival 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 4 of 8 Permit NCO086681 USE OF A DIFFERENT TEST ORGANISM The permittee may request the use of a different test organism upon documentation that the alternate test organism would provide an equal or greater level of protection and is appropriate based on the characteristics of the discharge and receiving stream. Such documentation would consist of one of the following: 1. For saltwater classified streams, a fathead minnow may be assigned as the acute testing species if the salinity of the receiving stream at the point of discharge is <5 ppt throughout the tidally influenced cycle. This determination may be based on the best professional judgment of DWR staff or data collection provided by the permittee and approved by DWR staff. This evaluation should include vertical profiles of salinity/conductivity measurements at both high tide and low tide over several,14 hr cycles. 2. Three (3) consecutive "side-by-side" tests with results` ndicating that the alternate test organism is as or more sensitive to the facility's of gent. Each test series would consist of two separate toxicity tests conducted on the -same sample of 'effluent with the length of exposure specified by the permit, the only difference between the tests being the organism used. 3. An alternate plan developed by the permittee and', ap7o'ved by the Aquatic Toxicology Unit that demonstrates an equal level ofprotection is offered by the test organism. For items 2 and 3, it must also bedemonstrated`that viable,and standardized culture techniques are available for that organism and�standardized�teshng Methodologies have been developed and validated. This demonstration should meet4didanc/provided by EPA in Section 6 of EPA -821-R-02-012, "Short Term Methods for Estimating-theAcute'ToxiZ*y of Effluents and Receiving Waters to Freshwater Organisms, Fifth Edition 2002::x\ \ <� \ �� Requests to use a different�test organism organism documentation should be sent to North Carolina Division of Water sources, Water`Sciences Section (at the address listed above). A. (3.) DISCHARGE SPECIAL CONDITION [15A NCAC 02B .0500 et seq.] Should this discharge cause scouring or visible turbulence within the Pasquotank River, the Division may require the permittee to relocate this discharge. Page 5 of 8 Permit NCO086681 A. (4.) 1NSTREAM MONITORING REQUIREMENTS FOR SALINITY [15A NCAC 02B .0500 et seq.] Salinity shall be monitored within the Pasquotank River (at the locations indicated) monthly year-round. [Previous Outfalls S3 and S5 omitted as irrelevant, based on past data.] Parameter Sample Location Frequency Year -Round Salinity S1 [BIMS Outfall 001A] Monthly January through (parts per thousand) S2 [BIMS Outfall 00113] Monthly December S4 [BIMS Outfall 001D] Monthly See attached Sample Location Map (not to scale); sampling S1— background samples (outside the influence of the location near the northern end of Machelhe Island S2 - along the shoreline (at a convenient location) S4 - along the shoreline, (at a convenient lc A. (5.) ELECTRONIC REPORTIN [G. S. 143-215, 4 (b)]-�, \\ Federal regulations require elect program reports. The final NPD December 21, 2015. \X described as: o,6)\aken at a convenient on H7158; °ly 100 feet.west of the outfall; ely 100 feet`e\ast of the outfall. OF''DI;SCHARGE MONITORING REPORTS tal ofall discharge monitoring reports (DMRs) and c Reporting Rule was adopted and became effective on NOTE: This special condition suppl6m`ents or supersedes the following sections within Part II of this permit (Standard Conditions fdr\NPDES Permits): • Section B. (11.) Signatory Requirements • Section D. (2.) Reporting • Section D. (6.) Records Retention • Section E. (5.) Monitoring Reports 1. Reportiniz Requirements [Supersedes Section D. (2.) and Section E. (5.) (a)1 The permittee shall report discharge monitoring data electronically using the NC DWR's Electronic Discharge Monitoring Report (eDMR) internet application. Monitoring results obtained during the previous month(s) shall be summarized for each month and submitted electronically using eDMR. The eDMR system allows permitted facilities to enter monitoring data and submit DMRs electronically using the internet. Until such time that the state's eDMR application is compliant with EPA's Cross -Media Electronic Reporting Regulation (CROMERR), permittees will be required to submit all discharge monitoring data to the state electronically using eDMR and will be required to complete the eDMR submission by printing, signing, and submitting one signed original and a copy of the computer printed eDMR to the following address: Page 6 of 8 2. Permit NC0086681 NC DEQ / Division of Water Resources / Water Quality Permitting Section ATTENTION: Central Files 1617 Mail Service Center Raleigh, North Carolina 27699-1617 If a permittee is unable to use the eDMR system due to a demonstrated hardship or due to the facility being physically located in an area where less than 10 percent of the households have broadband access, then a temporary waiver from the NPDES electronic reporting requirements may be granted and discharge monitoring data may be submitted on paper DMR forms (MR 1, 1. 1, 2, 3) or alternative forms approved by the Director. Duplicate signed copies shall be submitted to the mailing address above. See "How to Request a Waiver from Electronic Reporting" section below. Regardless of the submission method, the first DMR is due onAe last day of the month following the issuance of the permit or in the case of a new facility,,the last day of the month following the e following compliance ,ee "How to Request a itial recipient at the time e resources to identify the facilities means the entity (EPA or the state authorized by EPA to implement the NPDES program) that is the designated entity for receiving electronic NPDES data [see 40 CFR 127.2(b)]. EPA plans to establish a website that will also link to the appropriate electronic reporting tool for each type of electronic submission and for each state. Instructions on how to access and use the appropriate electronic reporting tool will be available as well. Information on EPA's NPDES Electronic Reporting Rule is found at: http://www2.gpa.gov/compliance/final-national-pollutant- discharg_e-elimination-system-npdes-electronic-reporting-rule. Electronic submissions must start by the dates listed in the "Reporting Requirements" section above. Page 7of8 3. Permit NC0086681 How to Request a Waiver from Electronic Reporting The permittee may seek a temporary electronic reporting waiver from the Division. To obtain an electronic reporting waiver, a permittee must first submit an electronic reporting waiver request to the Division. Requests for temporary electronic reporting waivers must be submitted in writing to the Division for written approval at least sixty (60) days prior to the date the facility would be required under this permit to begin submitting monitoring data and reports. The duration of a temporary waiver shall not exceed 5 years and shall thereupon expire. At such time, monitoring data and reports shall be submitted electronically to the Division unless the permittee re -applies for and is granted a new temporary electronic reporting waiver by the Division. Approved electronic reporting waivers are not transferrable. Only permittees with an approved reporting waiver request may submit monitoring data and reports on paper to the Division for the period that the approved reporting waiver request is effective. / Information on eDMR and the application for a the following web page: http://deq.nc.gov/abou reporting waiver are found on iurces/edmr All eDMRs submitted to the permit issuing authority shall`be signed by a person described in Part II, Section B. (11.)(a) or by a duly authorizedrepresentative of that person as described in Part II, Section B. (I 1.)(b). A person ,and not'aposAion must be de - legated signatory authority for eDMR reporting purposes. For eDMR submissionthe erson siigmng iid sybmitting the DMR must obtain an eDMR user account and login\credentials\to\access the eDMR system. For more information on North Carolina's eDMR system, regi st ringXtor �eDMR and obtaining an eDMR user account, please visit the following web page 1 Certification. Any person submitting an electronic DMR using the state's eDMR system shall make the following certification [40 CFR 122.22]. NO OTHER STATEMENTS OF CERTIFICATION WILL BE ACCEPTED: 7 certify, under penalty of law, that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fines and imprisonment for knowing violations. " 4. Records Retention [Supplements Section D. (6.)] The permittee shall retain records of all Discharge Monitoring Reports, including eDMR submissions. These records or copies shall be maintained for a period of at least 3 years from the date of the report. This period may be extended by request of the Director at any time [40 CFR 122.41]. Page 8of8 Camden County South Camden W&SD RO/WTP Permitted Flow: 0.432 MGD Sub -Basin: 03-01-50 Receiving Pasquotank River Stream Class: SB Drainage Basin: Pasquotank Basin HUC: 03010205 State Grid/Ouad: B 34 SW/Elizabeth City Facility Location (not to scale) North NPDES Permit NCO086681 Camden County r; ilk fl1 NC HWY 158' •(�� t Flat JSample ! TF " Instream UgtlY -3 Locations, S2 and S4 hantil ,r 4 a Upstream Sample Location, S1 Point '++�• �..A,?�4G"�1 C�P � .x ..... r•r. . .dye Ir in � AC`Solt FOint 3 6cY " (01'. . Outfall Outfa11001 p `\ s (diffuser located 800 feet offshore) � G� Lat 360 18' 03", Long 76 ° 10' 20" (/ r, (discharge subject to ocean and wind tides) fl ; µ 1 T 1: . 93- i Y ' r( wry \✓� __. — + µV L e 1 P Tidal fiat Trciilet: Park Camden County South Camden W&SD RO/WTP Permitted Flow: 0.432 MGD Sub -Basin: 03-01-50 Receiving Pasquotank River Stream Class: SB Drainage Basin: Pasquotank Basin HUC: 03010205 State Grid/Ouad: B 34 SW/Elizabeth City Facility Location (not to scale) North NPDES Permit NCO086681 Camden County