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HomeMy WebLinkAboutNC0073679_Permit Issuance_20130517`t O • r NCDENR North Carolina Department of Environment and Natural Resources Division of Water Quality Pat McCrory Charles Wakild, P.E. Governor Director May 17, 2013 Mr. Thomas J. Roberts, President Aqua North Carolina, Inc. 202 MacKenan Court Cary, NC 27511 Subject: Issuance of NPDES Permit NCO073 679 Aqua North Carolina, Inc. — Oak Hollow Subdivision WTP Wake County Dear Mr. Roberts: John E. Skvarla, III Secretary 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). This final permit includes one significant change to its terms from those found in the draft permit sent to you on March 27, 2013. This change is: a Reporting of Total Kjeldahl Nitrogen and Nitrites + Nitrates concentrations have been 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 (3 0) 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 permit that may be required. 1617 Mail Service Center, Raleigh, North Carolina 27699-1617 One Location: 512 N. Salisbury St Raleigh, North Carolina 27604 NorthCarohna Phone: 919-807-63001 FAX: 919-807-6492 Internet: www.ncwaterquality.org Niaturially An Equal opportunity 1 Affrmadve Action Employer Mr. Thomas J. Roberts NC0073679 Permit Renewal 2013 p. 2 If you have any questions concerning this permit, please contact Bob Sledge at telephone number (919) 807-6398, or via e-mail at bob.sledge@ncdenr.gov. Wakild, P.E. cc: Central Files Raleigh Regional Office/Surface Water Protection Section NPDES File Permit NCO073679 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, Aqua North Carolina, Inc. is hereby authorized to discharge wastewater from a facility located at the Oak Hollow Subdivision WTP Off NC Highway 42 near Mount Pleasant Wake County to receiving waters designated as an unnamed tributary to Middle Creek in the Neuse 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 July 1, 2013. This permit and the authorization to discharge shall expire at midnight on April 30, 2018. Signed this day May 13, 2013. G Churl Makild, P.E., Director - D' ision of Water Quality By Authority of the Environmental Management Commission Permit NCO073679 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. Continue to discharge wastewater from a Greensand filter water treatment plant, with additional wastewater treatment provided by a tablet dechlorinator and a final sand bed filter prior to discharge. This facility is located at the Oak Hollow Subdivision Water Treatment Plant, off NC Highway 42, near Mount Pleasant, in Wake County. 2. Discharge at the location specified on the attached map into anunnamed tributary to Middle Creek, classified C-NSW waters in the Neuse River Basin. Peimi t NC0073679 Ij / r ..,- _a.. . J Di�cha ntnt ���✓,�° In v 322 o` Aqua North Carolina, Inc. Oak Hollow Subdivision WTP Facility Location ` USGS Quad: Angier Stream Class: C, NSW Latitude: 350 35' 25" N Subbasin: 030403 Longitude: 78' 40' 35" W Receiving Stream: UT to Middle Creek North NPDES Permit NC0073679 Wake Count Permit NCO073679 A. (1) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - FINAL During the period beginning on the effective date of the permit and lasting until expiration, the Permittee is authorized to discharge filter backwash from outfall 001. Such discharges shall be limited and monitored by the Permittee as specified below: EFFLUENT CHARACTERISTICS LIMITS MONITORING REQUIREMENTS Parameter Code Monthly Average Daily Maximum Measurement Frequency Sample Type Sample Location Flow 50050 2/Month Estimatel Effluent Total Suspended Solids (TSS) C0310 30.0 mg/L 45.0 mg/L 2/Month Grab Effluent pH 00400 > 6.0 and < 9.0 standard — units 2/Month Grab Effluent Total Residual Chlorine2 50060 T17 pg/L 2/Month Grab Effluent Turbidity 00070 Monitor & Report 2/Month Grab Effluent Total Iron 01045 Monitor & Report Quarterly Grab Effluent Total Manganese 01055 Monitor & Report Quarterly Grab Effluent Total Nitrogen (TN)3 C0600 Monitor & Report (mg/L) Semi-annually Calculated Effluent Total Phosphorus (TP) C0665 Monitor & Report (mg/L) Semi-annually Grab Effluent Footnotes: 1. Daily flow estimates are determined by the number and duration of backwash/rinse events. 2. The Division shall consider all effluent TRC values reported below 50 µg/L to be in compliance with the permit. However, the Permittee shall continue to record and submit all values reported by a North Carolina certified laboratory (including field certified), even if these values fall below 50 µg/L. 3. For a given wastewater sample, TN =(NO2-N + NO3-N) + TKN, where TN is Total Nitrogen, (NO2-N + . NO3-N) is Nitrite/Nitrate Nitrogen, a TKN is Tota eldahl Nitrogen. All samples collected should be from a representative discharge event. There shall be no discharge of floating solids or visible foam in other than trace amounts. Sledge, Bob From: Bryant, Shari L. Sent: Friday, April 26, 2013 9:08 AM To: Sledge, Bob Subject: RE: NCO073679 Oak Hollow WTP; Wake Co. Hi Bob, Thank you for the additional information. We have no further comments. Shari Bryant N.C. Wildlife Resources Commission P.O. Box 129 Sedalia, NC 27342-0129 336.449.7625 shari.bryant@ncwildlife.ore Get NC Wildlife Update -- news including season dates, bag limits, legislative updates and more -- delivered to your Inbox from the N.C. Wildlife Resources Commission. From: Sledge, Bob Sent: Thursday, April 25, 2013 8:14 AM To: Bryant, Shari L. Subject: RE: NCO073679 Oak Hollow WTP; Wake Co. Hi Shari, Thank you for the WRC's comments on this draft permit. I just wanted to pass along a few bits of information. This water treatment plant discharge is relatively small. I looked at data reported for the facility for 2011— 2012. Reported flow ranged from 1,250 to 3,900 gallons per day. The effluent does receive dechlorination and passes through a sand filter before it is discharged to the stream. During that same period of time, chlorine values ranged from <12 µg/L to 33 µg/L. Most reported values were at or near the low end of that range. Our records did not show any noncompliance with permit limits during that time (due to questionable reliability of reported chlorine values that are near the method detection levels, DWQ considers reported values that are <50 µg/L to be compliant with TRC limits). I hope this may satisfy some of your concerns about the discharge. Unless we receive further comment from you or other interested parties, it's likely that the permit will be issued as drafted. Please call or reply if you have any questions, comments or concerns. Bob From: Bryant, Shari L. Sent: Friday, April 19, 2013 3:46 PM To: Sledge, Bob Cc: Nichols, Rob B. Subject: NCO073679 Oak Hollow WTP; Wake Co. Bob, Please find attached our comments on the subject project. Thanks. Shari Bryant 1 4 North Carolina Wildlife Resources Commission 0 Gordon Myers, Executive Director MEMORANDUM TO: Bob Sledge, Surface Water Protection Section — Point Source Branch Division of Water Quality p FROM: Shari L. Bryant, Piedmont Region Coordinator Habitat Conservation Program DATE: 19 April 2013 SUBJECT: Draft NPDES Permit for Oak Hollow Water Treatment Plant, Wake County, NPDES Permit No. NC0073679 Biologists with the North Carolina Wildlife Resources Commission have reviewed the subject document. Our comments are provided in accordance with provisions of the Clean Water Act of 1977 (as amended), Fish and Wildlife Coordination Act (48 Stat. 401, as amended; 16 U.S.C. 661-667e), North Carolina General Statutes (G.S. 113-131 et seq.), and North Carolina Administrative Code 15A NCAC 10I.0102. Aqua North Carolina, Inc. has applied for a renewal of their NPDES permit to discharge treated filter backwash wastewater to an unnamed tributary to the Middle Creek in the Neuse River Basin. According to the public notice, Total Residual Chlorine is currently water quality limited. There are records for the federal and state endangered dwarf wedgemussel (Alasmidonta heterodon); the federal species of concern and state endangered Atlantic pigtoe (Fusconaia masoni); the federal species of concern and state significantly rare pinewoods shiner (Lythrurus matutinus); the state threatened creeper (Strophitus undulatus), Roanoke slabshell (Elliptio roanokensis), triangle floater (Alasmidonta unduaata), Eastern lampmussel (Lampsilis radiata), Carolina fatmucket (Lampsilis radiata conspicua), and least brook lamprey (Lampetra aepyptera); and the state special concern North Carolina spiny crayfish (Orconectes [Procericambarus] carolinensis) in Middle Creek. Also the Significant Natural Heritage Area — Middle Creek (Wake/Johnston) Aquatic Habitat — is located in this section of the Middle Creek. Chlorine is acutely toxic and can form secondary compounds that are detrimental to aquatic life. Valenti (2006) concluded the impact of long term exposure to low doses of chlorine may impact juvenile mussels and reduce the chance of them being recruited to the reproducing population. Due to the presence of several rare and sensitive species in Middle Creek, we offer the following recommendations to minimize impacts to aquatic resources. Mailing Address: Division of Inland Fisheries • 1721 Mail Service Center • Raleigh, NC 27699-1721 Telephone: (919) 707-0220 • Fax: (919) 707-0028 Page 2 19 April 2013 Oak Hollow WTP NPDES Permit No. NCO073679 1. Use a non -discharge option for filter backwash wastewater. 2. If non -discharge is not an option, then use dechlorination or settling basins to further reduce or eliminate chlorine in the discharge water. Thank you for the opportunity to comment on this permit renewal. If we can be of further assistance, please contact our office at (336) 449-7625 or shari.bryant(ancwildlife.org. Literature cited Valenti, T.W., D.S. Cherry, R.J. Currie, R.J. Neves, J.W. Jones, R. Mair, and C.M. Kane. 2006. Chlorine toxicity to early life stages of freshwater mussels (Bivalvia: Unionidae). Environmental Toxicology and Chemistry, 25(9):2512-2518. ec: Rob Nichols, WRC AFFIDAVIT OF PUBLICATION STATE OF NORTH CAROLINA COUNTY OF WAKE Advertiser Name: NCDENR/ DWQ/ POINT SOURCE Address: 1617 MAIL SERVICE CENTER PROTECTION SECTION/ RALEIGH, NC 276991617 Before the undersigned, a Notary Public of Wake County North Carolina, duly commissioned and authorized to administer oaths, affirmations, etc., personally appeared DEBORAH MAHAFFEY, who being duly sworn or affirmed, according to law, doth depose and say that he or she is Accounts Receivable Specialist of The News & Observer a corporation organized and doing business under the Laws of the State of North Carolina, and publishing a newspaper known as The News & Observer, in the City of Raleigh, Wake County and State aforesaid, the said newspaper in which such notice, paper, document, or legal advertisement was published was, at the time of each and every such publication, a newspaper meeting all of the requirements and qualifications of Section 1-597 of the General Statutes of North Carolina and was a qualified newspaper within the meaning of Section 1-597 of the General Statutes of North Carolina, and that as such he or she makes this affidavit; and is familiar with the books, files and business of said corporation and by reference to the files of said publication the attached advertisement for NCDENR/ DWQ/ POINT SOURCE was inserted in the aforesaid newspaper on dates as follows: 03/2812013 DEBORAH MAHAFFEY, Accounts R ble Specialist Wake County, North Carolina 1R 1 tW Notary Public wake county Ad Number 0000441829 Publla Notice North Carolina Environmental Marwaemerrf ConenMory NPDFS Unit 1617Ma11 Service Center Raleigh, NC 9699-1617 Notlred Intent to Issue o NPDES Wostewaler Permit NaD: March a, M13 Sworn to and subscribed before me This 29th day of March, 2013 My Commission Expires: Notary Signature FACT SHEET FOR EXPEDITED PERMIT RENEWALS This form must be completed by Permit Writers for all expedited permits which do not require full Fact Sheets. Expedited permits are generally simple 100% domestics (e.g., schools, mobile home parks, etc) that can be administratively renewed with minor changes, but can include facilities with more complex issues (Special Conditions, 303(d) listed water, toxicity testing, instream monitoring, compliance concerns). Basic Information for Expedited Permit Renewals Permit Writer/Date Bob Sledge 3/13/2013 Permit Number NCO073679 Name Aqua NC — Oak Hollow WTP -Facility Basin Name/Sub-basin number Neuse 03-04-03 Stream UT to Middle Creek -Receiving Stream Classification in Permit C-NSW Does permit need Daily Max NH3 limits? No Does permit need TRC limits/language? Existing Does permit have toxicity testing? No 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? No Any permit mods since last permit? Yes 2/8/2012 modification added some elements of 2009 WTP policy Current expiration date 4/30/2013 New expiration date 4/30/2018 Comments received on Draft Permit? The permit was drafted in accordance with the Greensand Filter section of the 2009 WTP permitting guidance. Changes to the existing permit included: • Monitoring for Flow was increased to twice per month. • Monitoring for Manganese was added to the permit with a quarterly monitoring frequency. • Monitoring for Turbidity was added with monitoring frequency of twice per month. • Reporting of nutrient loading was removed from the permit. • Footnotes were updated. AQUA. Aqua North Carolina, Inc. 202 MacKenan Court Cary, NC 27511 October 30, 2012 Mrs. Dina Sprinkle NC DEN R/ DWQ/ POINT Source Branch 1617 Mail Service Center Raleigh, NC 27699-0167 Re: Oak Hollow Permit Renewal Application Permit #: NCO073679 Wake County Dear Mrs. Sprinkle, T: 919.467.8712 F: 919.460.1788 www.aquanorthcarolina.com N O V 9 2012 DENR-'IJATER QUALITY on1NT S0URCE 5-2-0 r Enclosed you'll find our application for renewal of our NPDES Permit and required documentation. Aqua North Carolina, Inc. requests the renewal of the current limitations for this facility as recorded on the previous permit set to expire on April 30, 2013. If you have any questions feel free to contact me at (704) 489-9404, extension 57238. Sincerely, Michael A. Melton Regional Manager of Compliance Aqua North Carolina, Inc. An Aqua America Company NPDES PERMIT APPLICATION - SHORT FORM C - WTP For discharges associated with water treatment plants Mail the complete application to: N. C. Department of Environment and Natural Resources Division of Water Quality / NPDES Unit 1617 Mail Service Center, Raleigh, NC 27699-1617 NPDES Permit Number INCO073679 If you are completing this form in computer use the TAB key or the up - down arrows to move from one field to the next To check the boxes, click your mouse on top of the box. Otherwise, please print or type. 1. Contact Information: Owner Name AQUA NORTH CAROLINA, INC. Facility Name OAK HOLLOW Mailing Address 202 MACKENAN COURT City CARY State / Zip Code NORTH CAROLINA 27511 Telephone Number (919)467-8712 Fax Number (919)460-1788 e-mail Address TJRoberts@aquaamerica.com 2. Location of facility producing discharge: Check here if same as above ❑ Street Address or State Road OFF NC HIGHAY 42 NEAR MOUNT PLEASANT City RALEIGH State / Zip Code NORTH CAROLINA County WAKE 3. Operator Information: Name of the firm, consultant or other entity that operates the facility. (Note that this is not referring to the Operator in Responsible Charge or ORC) Name AQUA NORTH CAROLINA, INC. Mailing Address 202 MACKENAN COURT City CARY State / Zip Code NORTH CAROLINA 27511 Telephone .Number (919)467-8712 Fax Number (9-19)460-1788 4. Ownership Status: Federal ❑ State ❑ 5. Type of treatment plant: Private Public ❑ Pagel of 3 C-W TP 03/05 NPDES PERAHT APPLICATION - SHORT FORM C - WTP For discharges associated with water treatment plants ❑ Conventional (Includes coagulation, flocculation, and sedimentation, usually followed by filtration and disinfection) ❑ Ion Exchange (Sodium Cycle Cationic ion exchange) ® Green Sand Filter (No sodium recharge) ❑ Membrane Technology (RO, nanofiltration) Check here if the treatment process also uses a water softener ❑ 6. Description of source water(s) (Le. groundwater, surface water) Groundwater 7. Describe the treatment process(es) for the raw water: Chlorination Two (2) greensand filter unit Phosphate Caustic for PH control 8. Describe the wastewater and the treatment process(es) for wastewater generated by the facility Two (2) greensand filter unit Calcium thiosulfate (Dechlorination) 2" outfall pipe 9. Number of separate discharge points: 1 Outfall Identification number(s) -001 10. Frequency of discharge: Continuous ❑ Intermittent If intermittent: Days per week discharge occurs: 1 Dgy Duration: 30 minutes 11. Plant design potable flowrate .018 MGD Backwash or reject flow .0020 MGD 12. Name of receiving stream(s) (Provide a map showing the exact location of each outfall, including latitude and longitude): Unnamed tributary to Middle Creek in the Neuse River Basin 13. Please list all water treatment additives, including cleaning chemicals or disinfection treatments, that have the potential to be discharged. Page 2 of 3 C-WTP 03/05 NPDES PERMIT APPLICATION - SHORT FORM C - WTP For discharges associated with water treatment plants Chlorine Phosphate Calcium Thiosulfate Caustic Soda Bennefloc 14. Is this facility located on Indian country? (check one) Yes ❑ No 15. Additional Information: Provide a schematic of flow through the facility, include flow volumes at all points in the treatment process, and point of addition of chemicals. Solids Handling Plan 16. NEW Applicants Information needed in addition to items 1- I 5: New applicants must contact a permit coordinator with the NCDENR Customer Service Center. Was the Customer Service Center contacted? ❑ Yes ❑ No Analyses of source water collected Engineering Alternative Analysis Discharges from Ion Exchange and Reverse Osmosis plants shall be evaluated using a water quality model. 17. Applicant Certification I certify that I am familiar with the information contained in the application and that to the best of my knowledge and belief such information is true, complete, and accurate. North Carolina General Statute 143-215.6 (b)(2) provides that: Any person who knowingly makes any false statement representation, or certification in any application, record, report, plan, or other document files or required to be maintained under Article 21 or regulations of the Environmental Management Commission implementing that Article, or who falsifies, tampers with, or knowingly renders inaccurate any recording or monitoring device or method required to be operated or maintained under Article 21 or regulations of the Environmental Management Commission implementing that Article, shall be guilty of a misdemeanor punishable by a fine not to exceed $25,000, or by imprisonment not to exceed six months, or by both. (18 U.S.C. Section 1001 provides a punishment by a fine of not more than $25,000 or imprisonment not more than 5 years, or both, for a similar offense.) Page 3 of 3 C-WTP 03/05 co'K lio lloo ACCQ 5 F� ex lost �. S Z'^3 st Ake-S*ex 1 t i — i �kocflw ►1 2•ye i r Ff; I-rer I 51 000 1 Storm e I same. AOUA. North Carolina. Aqua North CarDIbx , Inc. T: 919.4,67.8713 110. Macb-nnn Ct F. 919.466.158E •Carp, NC 27511 www.aquanorthcaroli=com SLUDGE MANAGEMENT PLAN For Aqua Forth Carolina, Inc. No sludge will be treated on any wastewater treatment plant site operated by Aqua N.C., Central Division. ' Where practical, sludge removed from a Aqua N.C., Central Division facility will be transported via a contract hauler tQ another. Aqua N.C., Central Division facility for the purpose of 'seeding" a new or under loaded plant Unusable (or "dead") sludge will. be removed by a contract hauler and properly disposed of in accordance with NCGS.1 4�3-215.1. Contract haulers used by Aqua T.C., Central Division will be required to report the quantity of sludge transported and identify the location of the proposed disposal site if the sludge is not taken to an existing plant operated by Aqua N.C., Central Division. Aqua N.C., Central Division has not entered into any agreement to accept sludge into its facilities from plants -not owned by them Aqua N.C., Central Division will keep records on the quantity of sludge removed from each facility, the name of the contract hauler, and the destination of the sludge (whether used in another plant or disposed o fl. The information will be kept on file and will be made available to any regulatory agency having jurisdiction .over sludge treatment or disposal. Aqua N.C., Central Division includes facilities under the jurisdiction of the Raleigh, Wilmington and Fayetteville Regional Offices.