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HomeMy WebLinkAboutNC0066150_Draft Permit_20230808ROY COOPER Governor ELIZABETH S. BISER Secretary RICHARD E. ROGERS, JR. Director Adam Mitchell Town Manager 134 N. Main Street Fuquay-Varina, NC 27526 Mr. Mitchell: NORTH CAROLINA Environmental Quality August 8, 2023 Subject: Draft NPDES Permit NC0066150 Brighton Forest WWTP Grade II Biological WPCS Wake County Attached with this letter is a copy of the Draft NPDES permit renewal for the Town's Brighton Forest WWTP. Please review this draft carefully to ensure thorough understanding of the requirements and conditions it contains. There are a few changes in the draft attached here from the existing permit. These changes and other considerations are summarized below. • Regulatory Citations - Language has been added where necessary in the permit to provide regulatory citations for permit requirements. This includes updates to citations that have been changed with recent rule revisions. • Electronic Reporting - Permit language has been modified to be consistent with the finalization of federal requirements for electronic reporting. • Ammonia (NH3-N) Limits - In 2007 the town took over ownership and operation of the Brighton Forest WWTP. Previously the WWTP was a private treatment system and had limits that were monthly average and daily max limits. Daily maximum limits were set at five (5) times the monthly average. When the system changed to a public treatment system the limits were changed to monthly average and weekly average limits consistent with requirements for other publicly owned treatment works. The daily maximum limits were reassigned as weekly average limits. However, weekly average limits are to be set at three (3) times the monthly average, not five (5) times as with a daily max. This draft permit has corrected these weekly average limits. The new weekly average limits will be: summer — 6 mg/L and winter — 12 mg/L. Based on reviews of the previous permit cycle data these weekly average limits should be readily obtained by the current treatment system. • Dissolved Oxygen (DO) - The DO limit in the permit was changed in the last permit renewal to 5 mg/L. 15A NCAC 2B .0206 requires discharge to a zero -flow stream to have a DO limit of 6 mg/L. The draft permit changes the DO limit back to its required level of 6 mg/L. The town will have to evaluate needed operational changes to assure compliance with the required permit limit of 6 mg/L. • Receiving Stream Segment — The stream segment for Middle Creek has been incorrectly shown as 27-43-15-(1) in previous permits. This segment is for Middle Creek from its source to the dam at D Q �� North Carolina Department of Environmental Quality I Division of Water Resources 512 North Salisbury Street 1 1617 Mail Service Center I Raleigh, North Carolina 27699-1617 NORTH GAFF - + • oeoeraiemm�a.on�nemzi 0.x", 919.707.9000 Adam Mitchell Brighton Forest WWTP Page 2 Sunset Lake. This treatment system discharges to Middle Creek below Sunset Lake and in stream segment 27-43-15-(4). This has been corrected at various locations in the draft permit. • Updates to Footnotes on Effluent Table — Language in the footnotes has been updated to be consistent with our current descriptions. • Nutrient Language — Language in the permit has been modified associated with TN load. Previous permits had included language implying a TN load limit for this facility. The permit maintains the TN load allocation, however, 15A NCAC 02B .0713 does not specifically set TN load limits for dischargers < 0.5 MGD. Please note, however, that the TN load from this facility regularly exceeds the TN annual load allocation. It may be necessary in the future to address these loading levels. • Nutrient Management Re -Opener — A Special Condition [A.(4.)] has been added to the permit to address re -opening of the permit for the potential inclusion of additional nutrient control requirements. • Map Update — The map and descriptive information have been updated. The NPDES standard conditions (Parts II, III, and IV) that are a part of the permit are not included in this draft document (cover, map, and Part I). The conditions are the same as in your current permit. The latest version of the standard conditions is available at https://bit.ly/3k5NFaL and can be viewed online or downloaded as a PDF file. Concurrent with this notification the Division is publishing a notice in a newspaper having general circulation in the Wake County area soliciting public comments on this draft permit. Please provide any written comments you may have to me no later than 30 days after receipt of this draft permit Following the 30-day public comment period, the Division will review all pertinent comments and take appropriate action prior to issuing a final permit. If you have questions concerning this draft permit, please contact me by email at bradley.bennett@deq.nc.gov or at (919) 707-3629. At this time, contact by email is the most effective method. If we need to set up a call to discuss any issues, we can set that up through email. Sincerely, Bradley Bennett Compliance and Expedited Permitting Unit cc: Chris Grimes — Utilities Operations Manager — Town of Fuquay-Varina - electronic NPDES Files - electronic Raleigh Regional Office / Water Quality — electronic Operator Certification Program/Maureen Kinney — electronic Draft Permit NCO066150 STATE OF NORTH CAROLINA DEPARTMENT OF ENVIRONMENTAL QUALITY DIVISION OF WATER RESOURCES PF,R MIT 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 Fuquay-Varina is hereby authorized to discharge wastewater from a facility located at the Brighton Forest WWTP 4809 Goldleaf Court Fuquay-Varina Wake County to receiving waters designated as 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. This permit shall become effective This permit and authorization to discharge shall expire at midnight on April 30, 2028. If the permittee intends to continue discharging at the facility beyond the term of this permit, a renewal application must be submitted no later than November 2, 2027 (180 days before the expiration of this permit) Signed this day Richard E. Rogers, Jr. Director, Division of Water Resources By Authority of the Environmental Management Commission Page 1 of 9 Draft Permit NC0066150 SUPPLEMENT TO PERMIT COVER SHEET All previous NPDES Permits issued to this facility, whether for operation or discharge are hereby revoked, and as of this 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. The Town of Fuquay-Varina is hereby authorized to: Continue to operate a 0.117 MGD wastewater treatment facility that includes the following components: ➢ Influent pump station ➢ Two train carbon steel package treatment plant with ➢ Equalization basin ➢ Sludge holding basin ➢ Aeration basin ➢ Hopper bottom clarifiers ➢ Cloth media disc filter ➢ Tertiary filters (backup) ➢ Ultraviolet disinfection system ➢ Dechlorination system (backup) This facility is located at the Brighton Forest WWTP, 4809 Goldleaf Court, Fuquay-Varina, Wake County. 2. Discharge from said treatment works at the location specified on the attached map into Middle Creek [Stream Segment 27-43-15-(4)], a waterbody currently classified C; NSW within subbasin 03-04-03 [HUC 03 0202010901 ] of the Neuse River Basin. Page 2 of 9 Draft Permit NCO066150 PART I A. (1) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS [15A NCAC 02B .0400 et seq., 15A NCAC 02B .0500 et seq.] Grade III Biological WPCS [15A NCAC 08G .0302] During the period beginning on the effective day of this permit and lasting until expiration, the Permittee is authorized to discharge treated wastewater from outfall 001. Such discharges shall be limited and monitored' by the Permittee as specified below: PARAMETER LIMITS MONITORING REQUIREMENTS Monthly Weekly Daily Measurement Sample Sample eDMR Code Average Average Maximum Frequency Type Location 2 Flow 50050 [ ] 0.117 MGD Continuous RecordingInfluent or Effluent Total Monthly Flow [82220] Monitor & Report (MG/ Month) Monthly Calculated Influent or Effluent BOD, 5-day (20°C) 3 [C0310] 5.0 mg/L 7.5 mg/L 3/Week Composite Influent & April 1 through October 31 Effluent BOD, 5-day (20°C) 3 [C0310] 10.0 mg/L 15.0 mg/L 3/Week Composite Influent & November 1 through March 31 Effluent Total Suspended Solids 3 [C0530] 30.0 mg/L 45.0 mg/L 3/Week Composite Influent & Effluent NH3 as N [C0610] 2.0 mg/L 6.0 mg/L 3/Week Composite Effluent April 1 through October 31 NH3 as N [C0610] 4.0 mg/L 12.0 mg/L 3/Week Composite Effluent (November 1 through March 31 Dissolved Oxygen [00300] Daily average >_ 6.0 m /L 3/Week Grab Effluent Dissolved Oxygen [00300] Footnote 2 Footnote 2 Upstream & Downstream Temperature (°C) [00010] Footnote 2 Footnote 2 Upstream & Downstream Fecal Coliform [31616] 200/100 ml 400/100 ml 3/Week Grab Effluent (geometric mean Total Residual Chlorine TRC a, 5 [50060] 17 u /L 3/Week Grab Effluent Temperature °C [00010] Daily Grab Effluent TKN m /L [00625] Monitor & Report 2/Month Composite Effluent NO2-N + NO3-N m /L [00630] Monitor & Report 2/Month Composite Effluent TN m /L 6 [C0600] Monitor & Report 2/Month Composite Effluent Total Nitrogen Load 7 [QM600] Monitor & Report (pounds/month) Monthly Calculated Effluent [QY6001 Monitor & Report (pounds/year Annually Calculated Effluent Total Phosphorus $ [C06651 2.0 m /L quarterly average 2/Month Composite Effluent H 00400 > 6.0 and < 9.0 standard units 3/Week Grab Effluent Footnotes: 1. The permittee shall submit discharge monitoring reports electronically using the Division's eDMR system [see A. (5)]. 2. Upstream= at least 100 feet upstream from the outfall. Downstream = at U.S. Highway 401. Instream samples shall be grab samples collected 3 times per week during June, July, August, September, and October; weekly sampling is required during the other months of the year. Instream monitoring is provisionally waived in light of the permittee's participation in the Lower Neuse Basin Association. If at any time during the term of this permit membership in the association is terminated, the Division shall be notified immediately and instream monitoring shall be immediately conducted as stipulated in this permit. Page 3 of 9 Draft Permit NCO066150 Footnotes Continued: 3. The monthly average effluent BOD5 and Total Suspended Solids concentrations shall not exceed 15% of the respective influent value (85% removal). 4. This limit and associated monitoring will apply only if chlorine is used for disinfection. 5. 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. 6. For a given wastewater sample, TN=TKN+NO3-N+NO2-N, where TN is Total Nitrogen, TKN is Total Kjeldahl Nitrogen, and NO3-N and NO2-N are Nitrate and Nitrite Nitrogen, respectively. 7. TN Load is the mass load of Total Nitrogen discharged in a given period of time [see A. (2)]. 8. The quarterly average for total phosphorus shall be the average of composite samples collected 2/month during each calendar quarter (January -March, April -June, July -September, October -December). There shall be no discharge of floating solids or visible foam in other than trace amounts. A. (2) CALCULATION OF TOTAL NITROGEN LOADS [G. S. 143-215.1(b)] The Permittee shall calculate monthly and annual TN Loads as follows: i. Monthly TN Load (pounds/month) = TN x TMF x 8.34 where: TN = average Total Nitrogen concentration (mg/L) of the composite samples collected during the month TMF = Total Monthly Flow of wastewater discharged during the month (MG/month) 8.34 = conversion factor, from (mg/L x MG) to pounds ii. Annual TN Load (pounds/year) = Sum of the twelve Monthly TN Loads for the calendar year The Permittee shall report monthly Total Nitrogen results (mg/L and pounds/month) in the discharge monitoring report for each month and shall report each year's results (pounds/year) with the December report for that year. Page 4 of 9 Draft Permit NCO066150 A. (3) TOTAL NITROGEN ALLOCATIONS [G.S. 143-215.1 (b)] a. The following table lists the Total Nitrogen (TN) allocation(s) assigned to, acquired by, or transferred to the Permittee in accordance with the Neuse River nutrient management rule (T15A NCAC 02B .0713) and the status of each as of permit issuance. The allocations in this table are not enforceable limits nor do they supersede any TN limit(s) established elsewhere in this permit or in the NPDES permit of a compliance association of which the Permittee is a Co-Permittee Member. ALLOCATION TYPE SOURCE DATE ALLOCATION AMOUNT (') STATUS Estuary Discharge (pounds/year) (pounds/year) Base Assigned by Rule 12/7/1997; 1,183 2,366 Active (T15A NCAC 02B .0713) 4/1/2003 (1) Transport Factor = 50% b. Any addition, deletion, or modification of the listed allocation(s) (other than to correct typographical errors) or any change to Active status of any of the listed allocations shall be considered a major modification of this permit and shall be subject to the public review process afforded such modifications under state and federal rules. A. (4) PERMIT RE -OPENER: NUTRIENT MANAGEMENT [NCGS 143-215.1 (b)] a) Pursuant to N.C. General Statues Section 143-215.1 and implementing rules found in Title 15A of North Carolina Administrative Code, Subchapter 02H, specifically, 15A NCAC 02H.0112(b)(1) and 02H.0I 14(a), and Part II, Sections B.12 and B.13. of this Permit, the Director of DWR may reopen this permit to require nutrient management measures for the discharge. The results of water quality monitoring, modelling or other evaluations may require that conditions for total nitrogen and total phosphorus control be imposed on this permit. b) The Division may, upon written notification to the permittee, re -open this permit in order to incorporate or modify effluent limits, monitoring and reporting requirements, and other permit conditions when it deems such action is necessary to implement TMDL(s) approved by the USEPA. A. (5) ELECTRONIC REPORTING OF DISCHARGE MONITORING REPORTS [NCGS 143-215.1 (b)] Federal regulations require electronic submittal of all discharge monitoring reports (DMRs) and program reports. The final NPDES Electronic Reporting Rule was adopted and became effective on December 21, 2015. Page 5 of 9 Draft Permit NC0066150 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 Requirements [Supersedes Section D. (2.) and Section E. (5.) (a)l 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. The eDMR system may be accessed at: https://deq.nc.gov/about/divisions/water-resources/edmr. 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 following address: NC DEQ / Division of Water Resources / Water Quality Permitting Section ATTENTION: Central Files 1617 Mail Service Center Raleigh, North Carolina 27699-1617 See "How to Request a Waiver from Electronic Reporting" section below. Monitoring results obtained during the previous month(s) shall be summarized for each month and reported via the eDMR system no later than the last calendar day of the month following the completed reporting period. 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. Starting on December 21, 2025, the permittee must electronically report the following compliance monitoring data and reports, when applicable: Sewer Overflow/Bypass Event Reports; Pretreatment Program Annual Reports; and Clean Water Act (CWA) Section 316(b) Annual Reports. The permittee may seek an electronic reporting waiver from the Division (see "How to Request a Waiver from Electronic Reporting" section below). Page 6 of 9 Draft Permit NC0066150 2. Electronic Submissions In accordance with 40 CFR 122.41(1)(9), the permittee must identify the initial recipient at the time of each electronic submission. The permittee should use the EPA's website resources to identify the initial recipient for the electronic submission. Initial recipient of electronic NPDES information from NPDES-regulated 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: https://www.federalre ig ster.gov/documents/2Ol5/lO/22/2015-24954/national-pollutant-discharge- elimination-system-npdes-electronic-reporting-rule Electronic submissions must start by the dates listed in the "Reporting Requirements" section above. 3. 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 temporary electronic reporting waiver are found on the following web page: http://deq.nc.gov/about/divisions/water-resources/edmr 4. 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. (I 1.)(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: Page 7 of 9 Draft Permit NC0066150 http://deq.nc.gov/about/divisions/water-resources/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. " 5. 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 8 of 9 Ice FU -NA-LIJ At �Canopy Woods Dr. �- - Brighton - Forest — — WWTP Goldleaf Court 7 '4't _. LL 5,r Outfall O o 400 Ln Town of Fuquay-Varina Brighton Forest WWTP Receiving Stream: Middle Creek Stream Class: C; NSW River Basin: Neuse Sub -Basin: 03-04-03 Outfall Latitude: 35' 38' 09" Outfall Longitude: 78' 43' 45" Stream Segment 27-43-15-(4) HUC#: 030202010901 Grid/Quad: E23NE/ Lake Wheeler County: Wake Facility Location (not to scale) 7TH NPDES Permit NCO066150 Page 9 of 9