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HomeMy WebLinkAboutNC0083925_Draft Permit_20181003 • a,.1' ethyl .1--- se: NORTh CAROLINA ROY COOPER Environmental Quality Governor MICHAEL S.REGAN Secretary LINDA CULPEPPER Interim Director October 03, 2018 Ms.Amanda Owens Aqua North Carolina, Inc. 202 Mackenan Court Cary, North Carolina 27511 Subject: DRAFT NPDES PERMIT Permit Number NC0083925 Salem Glen Subdivision WWTP—Class II Davidson County Dear Ms.Owens: Enclosed with this letter is a copy of the draft permit for your facility. Please review the draft very carefully to ensure thorough understanding of the conditions and requirements it contains. The draft . permit contains no significant changes in its terms from those found in your current permit. You may submit any comments to me no later than thirty(30)days following your receipt of the draft. Comments should be sent to the address listed at the bottom of this page. If no adverse comments are received from the public or from you, this permit will likely be issued in late December 2018, with an effective date of February 1, 2019. If you have any questions or comments concerning this draft permit, please contact me at Emilv.delduco@ncdenr.gov or the number listed at the bottom of this page. Sincerely, 7 Lao_ Emily DelDuco Environmental Specialist NPDES Program cc: NPDES program 11'.7"—D 1-----"E Q i North Carolina Department of Environmental Quality I Division of Water Resources 512 North Salisbury Street 11617 Mail Service Center I Raleigh,North Carolina 27699-1617 919.707.9125 Permit NC0083925 Grade II Biological Water Pollution Control System[15A NCAC 08G.0302] STATE OF NORTH CAROLINA DEPARTMENT OF ENVIRONMENTAL QUALITY DIVISION OF WATER RESOURCES 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 Salem Glen Subdivision WWTP Dock Davis Road Clemmons Davidson County to receiving waters designated as the Yadkin River in the Yadkin-Pee Dee 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 2019. This permit and authorization to discharge shall expire at midnight on December 31,2023. Signed this day 2018. Linda Culpepper, Interim Director Division of Water Resources By Authority of the Environmental Management Commission Page 1 of 6 Permit NC0083925 Grade II Biological Water Pollution Control System[15A NCAC 08G.0302] 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 operate an existing 0.10 MGD extended-aeration package wastewater treatment system with a discharge of treated domestic wastewater that includes the following components: • Effluent flow control chamber w/bar screen • Flow equalization tank • Two (2) 50,000 gallon aeration basins with coarse air bubblers • Two (2)rectangular clarifiers w/air sludge wasting and return • UV disinfection w/backup tablet chlorination/dechlorination • Effluent clear well • Effluent pump station • Flow measuring device • Stationary generator(backup) The facility is located at the Salem Glen WWTP (Dock Davis Road) near Clemmons in Davidson County. 2. After receiving Authorization to Construct permit from the Division, expand the facility to a 0.20 MGD WWTP. 3. Discharge from said treatment works via outfall 001 at the location specified on the attached map into the Yadkin River [sub-basin: 03-07-02; Stream Index: 12-(93.5)], currently classified WS-V waters in the Yadkin-Pee Dee River Basin [HUC: 030401011501]. Page 2 of 6 Permit NC0083925 Grade II Biological Water Pollution Control System[15A NCAC 08G.0302] PART I A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS—0.1 MGD [15A NCAC 02B.0400 et seq., 02B.0500 et seq.] During the period beginning on the effective date of this permit and lasting until expiration or expansion above 0.10 MGD,the Permittee is authorized to discharge treated domestic wastewater from outfall 001. Such discharges shall be limited and monitored)by the Permittee as specified below: EFFLUENT LIMITS MONITORING REQUIREMENTS CHARACTERISTICS Monthly Daily Measurement Sample Sample eDMR Code Average Maximum Frequency Type Location Flow 0.10 MGD Continuous Recording Influent or Effluent 50050 BOD5,5-day,20° • C0310 30.0 mg/L 45.0 mg/L Weekly Composite Effluent Total Suspended Solids CO530 30.0 mg/L 45.0 mg/L Weekly Composite Effluent NH3 as N 2/Month Composite Effluent CO610 Temperature 00010 Weekly Grab Effluent Fecal Coliform(geometric mean) Weekly Grab Effluent 31616 pH Not<6.O nor>9.0 00400 Standard Units Weekly Grab Effluent Total Residual Chlorine2' 50060 28 µg/L 2/Month Grab Effluent Total Nitrogen(NO2+NO3+ TKN) Monthly Composite Effluent CO600 Total Phosphorus C0600 Monthly Composite' Effluent Footnotes: 1. The permittee shall submit discharge monitoring reports electronically using NC DWR's eDMR system. See Special Condition A.(3.). 2. Total Residual Chlorine (TRC) monitoring requirements and limits are applicable only if chlorine compounds are used for disinfection. 3. The Division shall consider all effluent TRC values reported below 50 µg/1 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. 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. Page 3 of 6 Permit NC0083925 Grade II Biological Water Pollution Control System[15A NCAC 08G.0302] A. (2.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS—0.2 MGD [15A NCAC 02B.0400 et seq., 02B.0500 et seq.] Beginning upon authorized expansion above 0.10 MGD and lasting until expiration, the Permittee is authorized to discharge treated domestic wastewater from outfall 001. Such discharges shall be limited and monitored'by the Permittee as specified below: EFFLUENT LIMITS MONITORING REQUIREMENTS CHARACTERISTICS Monthly Daily Measurement Sample Sample Parameter Code Average Maximum Frequency Type Location Flow 50050 0.20 MGD Continuous Recording Influent or Effluent BOD5,5-day,20° C0310 30.0 mg/L 45.0 mg/L Weekly Composite Effluent Total Suspended Solids C0530 30.0 mg/L 45.0 mg/L Weekly Composite Effluent NH3 as N 2/Month Composite Effluent C0610 Temperature 00010 Weekly Grab Effluent Fecal Coliform(geometric mean) Weekly Grab Effluent 31616 pH 00400 (6.0—9.0 s.u.) Weekly Grab Effluent Total Residual Chlorinee-3 50060 28 ug/L 2/Month Grab Effluent Total Nitrogen(NO2+NO3+TKN) C0600 Monthly Composite Effluent Total Phosphorus C0665 Monthly Composite Effluent Footnotes: 1. The permittee shall submit discharge monitoring reports electronically using NC DWR's eDMR application system. See Special Condition A.(3.). 2. Total Residual Chlorine (TRC) monitoring requirements and limits are applicable only if chlorine compounds are used for disinfection. 3. The Division shall consider all effluent TRC values reported below 50 µg/1 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. 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. Page 4 of 6 Permit NC0083925 Grade II Biological Water Pollution Control System[15A NCAC 08G.0302] A. (3.) ELECTRONIC REPORTING OF DISCHARGE MONITORING REPORTS [G.S. 143-215.1(B)] Proposed federal regulations require electronic submittal of all discharge monitoring reports (DMRs) and specify that, if a state does not establish a system to receive such submittals,then permittees must submit DMRs electronically to the Environmental Protection Agency(EPA). The Division anticipates that these regulations will be adopted and is beginning implementation in late 2013. NOTE: This special condition supplements or supersedes the following sections within Part II of this permit(Standard Conditions for NPDES Permits): • Section B. (11.) Signatory Requirements • Section D. (2.) Reporting • Section D. (6.) Records Retention • Section E. (5.) Monitoring Reports 1. Reporting [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: NC DENR/DWR/Information Processing Unit ATTENTION: Central Files/eDMR 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. Requests for temporary waivers from the NPDES electronic reporting requirements 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 using eDMR. Temporary waivers shall be valid for twelve(12)months and shall thereupon expire. At such time,DMRs shall be submitted electronically to the Division unless the permittee re-applies for and is granted a new temporary waiver by the Division. Page 5 of 6 Permit NC0083925 Grade II Biological Water Pollution Control System[15A NCAC 08G.0302] Information on eDMR and application for a temporary waiver from the NPDES electronic reporting requirements is found on the following web page: http://portal.nedenr.org/web/wq/admin/bogjipu/edmr Regardless of the submission method, the first DMR is due on the last day of the month following the issuance of the permit or in the case of a new facility, on the last day of the month following the commencement of discharge. 2. Signatory Requirements [Supplements Section B. (11.) (b) and supersedes Section B. (11.) (d)1 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 authorized representative of that person as described in Part II, Section B. (11.)(b). A person, and not a position,must be delegated signatory authority for eDMR reporting purposes. For eDMR submissions, the person signing and submitting 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, registering for eDMR and obtaining an eDMR user account,please visit the following web page: http://portal.ncdenr.org/web/wq/admin/bog/ipu/edmr 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: "I 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." 3. Records Retention [Supplements Section D. (6.)1 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]. A. (4.) NUTRIENT REOPENER FOR HIGH ROCK LAKE [NCGS 143.215.1 (b)] This permit may be reopened and modified to implement nutrient requirements in accordance with any future TMDL and/or nutrient management strategy for High Rock Lake. Page 6 of 6 • 44 r• " ,s `: , \ ^- '_ter-'-3 , - 1 -,f; efX 1- 4. Substa:,o �� . Yadkin River , . - , h _-.. • 728, i .�' •: --!- , `-�, , =- /- 177 oe,..A. - _ • "- } • 0 o �' =/l e , . ` ,� "N. i .. � -\ \ f\�a / � \�. \ ,\ / \ ) . ,( / ' " s !? / emc\a • pyo t �)„ 1' _ Oll > •` ' � l - L r �iGutfall001 // r 7 �! .�—vS 1 75 ( \ \ - • \ '. '. '-----.1--‘---r- ..„,,.. cri\.c-\--.2\'i' ' ,.---.„ 6 \'•1 • / •. --i-: 4•-- 4.--") 111 % . '-''' '; .—--- --- % -,,-.)' o J Y' 7 —� 1 , , Th ianc- • 7� �J ;~ I � , \�� _ /_`, opyright.©2013 ptionalsGeog ar phiyooiety,1''cubed Aqua North Carolina, Inc. _ ` ,,. Salem Glen Subdivision WWTP � �� ��+/�`, ,, NPDES Permit NC0083925 '_ '�►`'�►j� 041.r� A1:15,000.000 - • �o�~ Receiving Stream:Yadkin River Stream Class:WS-V adt Stream Segment: 12-(93.5) Sub-Basin#:03-07-02 River Basin:Yadkin-Pee Dee HUC:030401011501 SCALE County:Davidson 1:24,000 35.965833°N, -80.386389°W