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HomeMy WebLinkAboutNC0061719_Draft NPDES Permit_201105111 NCDENR North Carolina Department of Environment and Natural Resources Division of Water Quality Beverly Eaves Perdue Coleen H. Sullins Dee Freeman Governor Director Secretary May 11 2011 Thomas J. Roberts, President, COO AQUA North Carolina, Inc. 202 MacKenan Court Cary, North Carolina 27511 Subject: Review of Draft NPDES Permit NC0061719 Woodlake County Club WWTP, Grade II Merganser Way [NCSR 1001] Vass, North Carolina 28394 Moore County - Dear Mr, Roberts: In response to your request for discharge permit received December 21, 2010, the Division of Water Quality (the Division) hereby transmits this draft permit for your review and comment. Please review this document 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 Moore County area, as required by the NPDES Program. Please provide your comments, if any, to me via email [joe.corporon@ncdenr.gov] or write to my attention care of DENR / DWQ / NPDES Program no later than June 8, 2011. The Division documents that you have added dechlorination to the subject WWTP per the Division's Authorization to Construct dated February 5, 2008. We also received the Engineer's Certification form on September 17 of that year. We understand that you have made no other significant changes to your treatment system during the previous permit cycle. Concerning Your Request to Permit Ion -Exchange (IE) Filter Backwash. The Division has included IE filter backwash for treatment under your WWTP permit. We understand that you propose to continuously feed an estimated 12,000 gallons per month to the existing WWTP flow, currently averaging about 0.113 MGD (5-year average 2006-2010), or about 10% of the current effluent. The Division has no objections, and has updated your permit to include parameters and monitoring consistent with the 2007 statewide WTP policy addressing ion -exchange technology. All added parameters are to be monitored Quarterly [see permit sections A. (1.) and (2.)]. Warning. We note however the possibility that IE brine or other concentrations might disrupt existing WWTP processes. Should the proposed IE discharges prove untreatable at the WWTP, the Division may not otherwise permit an IE discharge to freshwaters of the state. Any remaining discharge alternative for IE filter backwash will be limited to a non -discharge, or 100% wholly recyclable WTP system. 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 \ Customer Service: 1-877-623-6748 Internet: www.ncwaterquality.org An Equal Opportunity \ Affirmative Action Employer NorthCarolina Naturally Other Changes to Your Previous Permit. Considering a relatively poor compliance record over the previous permit cycle, the Division has increased your monitoring frequency for several parameters (TRC and Fecal Coliform) from Weekly to 3/Week. For your convenience, we have sorted effluent parameters by Monitoring Frequency, and have added parameter codes for easy compliance (see A. (1.) and (2.)]. 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. Respectfully, Joe R. Corporon, L.G. NPDES Program Enclosure: NPDES Permit NC0089044 (DRAFT) hc: NPDES Program File, ec: FRO/SWPS, Attn: Mark Brantley [draft permit and Fact Sheet] Aquatic Toxicity, Attn: Susan Meadows [draft permit and Fact Sheet] TACU, Attn James Pugh [draft permit and Fact Sheet] FRO/ DEH, Attn: Debora Benoy [draft permit and Fact Sheet] 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 \ Customer Service: 1-877-623-6748 Internet: www.ncwaterquality.org An Equal Opportunity \ Affirmative Action Employer NorthCarolina Naturally Woodlake Country Club WWTP Approximate location AQUA North Carolina, Inc. Woodlake Country Club WWTP State Grid/Quad: G22NW / Lobelia, NC Permitted Flow: 0.500 &1.00 MGD Latitude: 35° 13' 03"N Longitude: 79° 11' 09" W Receiving Stream: Crane Creek [18-23-16] Sub -Basin: 03-06-14 Drainage Basin: Cape Fear River Basin Stream Class: WS-111 Facility Location not to scale X North NPDES Permit NC0061719 Moore County Permit NC0061719 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 (NPDES) In compliance with the provisions of North Carolina General tute 143-215.1, other lawful standards and regulations promulgated and adopted by the North Carol na Environmental Management Commission, and the Federal Water Pollution Control zt;as amended, AQUA North,Carolina, Inc. is hereby authorized to iischafge wastewvater from a facility located at the Woody le Country Club WWTP \ETC 1001 east of Vass Moore County to receiving waters designated as Crane Creek in the Cape Fear River Basin in accordance with effluent limitations, monitoring requirements, and other conditions set forth in Parts I, II, III and IV hereof. This permit shall become effective , 2011. This permit and authorization to discharge shall expire at midnight on May 31, 2016. Signed this day , 2011. Coleen H. Sullins, Director Division of Water Quality By Authority of the Environmental Management Commission Permit NC0061719 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. AQUA North Carolina, Inc. is hereby authorized to: 1 begin operating facilities to generate potable -water an6lated wastes [ion -exchange (IE) filter backwash], and to continue to operate an existing 0.500114GD wastewater treatment system to treat 100% domestic wastes utilizing: • manual bar screen • Aeromod Complete Mix aeration system- • tube settler -type clarifier • chlorination • dechlorination • post -aeration • aerobic sludge digest located at the Woodlake County; Club on NCSR 1001, east of Vass in Moore County, an 2. after receiving an Authorization to Construct (AtoC) permit from the Division of Water Quality's (DWQ's) Construction Grants and Loans (CG&L), construct components necessary to upgrade the wastewater treatment system to 1.00 MGD, and after submitting to DWQ an Engineer's Certification form and receiving Authorization to Operate, 3. discharge from said treatment works via Outfall 001, a location specified on the attached map, into Crane Creek [stream segment 18-23-16], a waterbody currently classified WS-III within sub -basin 03-06-14 of the Cape Fear River Basin. Permit NC0061719 A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS During the period beginning on the effective date of this permit and lasting until expansion to 1.00 MGD or. expiration, the Permittee is authorized to discharge from Outfall 001. Such discharges shall be limited and monitored by the Permittee as specified below: EFFLUENT CHARACTERISTICS Parameter Code LIMITS MONITORING REQUIREMENTS Monthly Average Daily Maximum Measurement Frequency Sample Type Sample Location 1 Flow 50050 0.500 MGD Continuous Recording I or E Fecal Coliform (geometric mean) 31616 200/100 ml 400/100 ml 3/Week Grab E Total Residual Chlorine 2 50060 28 µg/L 3/Week Grab E BOD, 5-day (20°C) 00310 30.0 mg/L 45.0 mg/L A Weekly Composite E Total Suspended Solids 00530 30.0 mg/L 45.0 mg/L 'r` Weekly Composite E Temperature.(°C) 00010 // \Weekly Grab E pH 00400 Not < 6.0 nor > 9: / Standard Units '\/,: f > Wkl y Grab E NH3 as N — Summer [Apr 1—Oct 31] 00610 17.0 mg/L \35,0 mg/L\ Weekly Composite E NH3 as N —Winter [Nov 1 — Mar 31 ] 00610 //rTh \\/ev-- > 2/Month Composite E Total Phosphorus 00665 \\ ,% L \\ Quarterly Composite E Total Dissolved Solids 7.02 6 Jv Quarterly Composite E Dissolved Oxygen \Q03oo \\ \N(4< 5.0 mg/L Quarterly Grab E Conductivity 3 0b094 ) ! v Quarterly Grab E Turbidity 3 0006\\ ,%j Quarterly Grab E Salinity 3 00480 \ / Quarterly Composite E Total Arsenic3 01002 Quarterly Composite E Total Copper 3 01042 Quarterly Composite E Total Iron 3 00980 Quarterly Composite E Total Manganese 3 01055 Quarterly Composite E Total Fluoride 3 00300 Quarterly Composite E Total Zinc 3 01092 Quarterly Composite E Acute Toxicity 4 TGE6C Quarterly Composite E Footnote: 1. I = Influent; E = Effluent 2. Total Residual Chlorine (TRC) - The Division shall consider all effluent TRC values reported below 50µg/L to be compliant with this 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 50µg/L. 3. Samples collected of this parameter shall reflect ion -exchange influent dosing. 4. Acute Toxicity — Monitoring only [Fathead Minnow (Pimephales promelas)], see Section A. (3.)]. Condition: The Permittee shall discharge no floating solids or foam. Permit NC0061719 A. (2.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS During the period beginning upon expansion to 1.00 MGD 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: EFFLUENT CHARACTERISTICS ° Parameter Code LIMITS `MONITORING REQUIREMENTS Monthly Average gType Daily Maximum Measurement � Frequency' Sample, �; Sampler Location t Flow 50050 1.00 MGD Continuous . Recording I or E Fecal Coliform (geometric mean) 31616 200/100 ml 400/100 ml 3/Week Grab E Total Residual Chlorine 2 50060 28 µg/L 3/Week Grab E BOD, 5-day (20°C) 00310 30.0 mg/L 45.0 mg/L Weekly Composite E Total Suspended Solids 00530 30.0 mg/L , 45.0 m \ Weekly Composite E Temperature (°C) 00010////\\ eekly Grab E pH 00400 Not < 6.0 nor \O Standard Units > Wel y Grab E NH3 as N - Summer Apr 1 -Oct 31]00610 9.1 mg/L \ -N S:fl mg/I Weekly Composite E NH3 as N -Winter [Nov 1 - Mar 31 ] 00610 �?'�r2/Month / M \'"" (� Composite E Total Phosphorus 0066 5 \\ Quarterly Composite E Total Dissolved Solids ,,70296``4,,N\<, ' `° Quarterly Composite E Dissolved Oxygen \0\0300 \\ '1 b < 5.0 mg/L Quarterly Grab E Conductivity 3 0 '0Q4\ );) Quarterly Grab E Turbidity 3 00076\\ // Quarterly Grab E Salinity 3 00480 " / Quarterly Composite E Total Arsenic3 01002 Quarterly Composite E Total Copper 3 01042 - Quarterly Composite E Total Iron 3 00980 Quarterly Composite E Total Manganese 3 01055 Quarterly Composite E Total Fluoride 3 00300 Quarterly Composite E Total Zinc 3 01092 Quarterly Composite E Acute Toxicity 4 TGE6C Quarterly Composite E Footnote: 1. I = Influent; E = Effluent 2. Total Residual Chlorine (TRC) - The Division shall consider all effluent TRC values reported below 501.tg/L to be compliant with this 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 50µg/L` 3. Samples collected of this parameter shall reflect ion -exchange influent dosing. 4. Acute Toxicity - Monitoring only [Fathead Minnow (Pimephales promelas)], see Section A. (3.)]. Condition: The Permittee shall discharge no floating solids or foam. Permit NC0061719 A. (3.) ACUTE TOXICITY MONITORING ONLY - (QUARTERLY) 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 -July, 1992 or subsequent versions). The monitoring shall be performed as a Fathead Minnow (Pimephales promelas) 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). Effluent samples for self -monitoring purposes must be obtained during representative effluent discharge below all waste treatment. The tests will be performed during the months of February, May, August, and November. The parameter code for Pimephales promelas is TGE6C. All toxicity testing results required as part of this permit condition will be entered on the Effluent Discharge Form (MR-1) for the month in which it was performed, using the appropriate parameter code. Additionally, DWQ Form AT-2 (original) is to be sent to the following address: Attention: North Carolina Division of Water Quality Environmental /Sciences Sec ion 1621 Mail 5 i vvice,Cnter Raleigh, N.C.27699-1621 Completed Aquatic Toxicity Test Forms shall be Ile d'with the Environmental Sciences Section no f.'•\g pe od or whJch the report is made. .\ later than 30 days after the end of the reporting � Test data shall be complete and.accurate anc1-ie a 1l supporting chemical/physical measurements performed in association with the toic�ty;tnc�dests, as well as all dose/response data. Total residual chlorine of the effluent toxicity sample must bye measured and reported if chlorine is employed for disinfection of the waste stream Should there be no discharge of flatfrom the facility during any month, 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 any test data from either these monitoring requirements 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 than 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 Form submitted. 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. FACT SHEET Complex EXPEDITED PERMIT RENEWAL Basic Information for Expedited Permit Renewals Permit Writer/Date Joe R. Corporon L.G. / 10May2011 Permit Number NC0061719 Facility Name AQUA North Carolina, Inc. — Woodlake Country Club WWTP Basin Name/Sub-basin number Cape Fear / 03-06-14 Receiving Stream Crane Creek [segment 18-23116] previous permit error "Little Crane Creek" herein corrected. Stream Classification in Permit WS-III Does permit need Daily Max NH3 limits? No Does permit need TRC limits/language? No Does permit have toxicity testing? No — added Quarterly Acute Monitoring only - TAE6C Does permit have Special Conditions? No Does permit have instream monitoring? No Is the stream impaired (on 303(d) list)? No Any obvious compliance concerns? YES — see BIMS Report and Staff Report Any permit mods since last permit? Yes — CG&L approved dechlor on 05Feb2008. Engineer's Cert. received 17Sep2008. Requests for Renewal Permittee requests IE discharge added to WWTP influent; IE = ---10% of actual flow (5-year average). Current expiration date May 31, 2011 New expiration date May 31, 2016 Comments received on Draft Permit? Proposed Renewal Changes • The Permittee proposes to add WTP ion -exchange (IE) filter backwash to the WWTP influent; [IE flow —12,000 gal/month; WWTP effluent —0.113 MGD (actual average, 2006- 2010)], therefore IE —10% of WWTP effluent. The Division has therefore added 2007 WTP Policy parameters of concern for IE technology, including metals and WET Testing at the WWTP outfall — Quarterly monitoring of all added parameters to be conducted concurrently with IE influent [see Section A. (1.)] • Cover letter to warn Permittee that if future IE discharges (high brine) upset the WWTP biomass, there is no discharge alternative for this technology, save reverting to a non - discharge or wholly 100%-recycling potable WTP system. Proposed discharges of IE backwash to freshwater streams may not be permitted under current statewide policy. • Updated map for renewal; added parameter codes to Effluent Table, A. (1.). • Poor compliance history prompted CO/FRO to increase monitoring frequency from Weekly to 3/Week for TRC and Fecal. BIMS Downloads and Review Results • Compliance - DMR limit and monitoring violations; Twenty (20) NOVs issued (2008- 2010) for fecal coliform, TRC, BOD5, TP and pH - eight (8) violations for Fecal Coliform proceeded to enforcement. FRO recommends increase monitoring frequencies [see memo from Mark Brantley (FRO) to Maureen Scardina (CO/ROC), dated 14Feb2011]. • TOX data Summary — No data to date; added TOX for renewal per 2007 WTP policy [see Section A. (3.)]. DMR Parameter Values Export - RPA not required; no parameters of concern.