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HomeMy WebLinkAboutNC0020290_Fact Sheet_20231116Fact Sheet NPDES Permit No. NCO020290 Permit Writer/Email Contact: Nick Coco, nick.coco@deq.nc.gov Date: October 19, 2023 Division/Branch: NC Division of Water Resources/NPDES Municipal Permitting Fact Sheet Template: Version 09Jan2017 Permitting Action: ❑X Renewal ❑ Renewal with Expansion ❑ New Discharge ❑ Modification (Fact Sheet should be tailored to mod request) Note: A complete application should include the following: • For New Dischargers, EPA Form 2A or 2D requirements, Engineering Alternatives Analysis, Fee • For Existing Dischargers (POTW), EPA Form 2A, 3 effluent pollutant scans, 4 2nd species WET tests. • For Existing Dischargers (Non-POTW), EPA Form 2C with correct analytical requirements based on industry category. Complete applicable sections below. If not applicable, enter NA. 1. Basic Facility Information Facility Information Applicant/Facility Name: Town of Bumsville/Burnsville Wastewater Treatment Plant (WWTP) Applicant Address: P.O. Box 97, Burnsville, NC 28714 Facility Address: 812 Pine Swamp Road, Burnsville, NC 28714 Permitted Flow: 0.8 MGD Facility Type/Waste: MAJOR Municipal; 91.1% domestic, 0.9% industrial* Facility Class: Grade III Biological Water Pollution Control System Treatment Units: Headworks including a fine screen assembly, aerated grit chamber, and bar screens, Comminuting device, Splitter box, Contact tanks, Reaeration tanks, Dual circular clarifiers, Chlorine contact tanks, Dechlorination, Post reaeration basin, Aerobic digesters, Sludge belt filter press, Sludge drying beds, Diesel standby generator Pretreatment Program (Y/N) Y; STMP County: Yancey Region Asheville *Based off of permitted flows. Briefly describe the proposed permitting action and facility background: The Town of Burnsville has applied for an NPDES permit renewal at 0.8 MGD for the Burnsville WWTP. This facility serves a population of approximately 4,000 residents, as well as 1 non -categorical significant industrial user (SIU: Altec Industries, Inc. - SIC 3713—Truck and Bus Bodies; 40 CFR 433 Categorical, Metal Finisher) via a Division -approved pretreatment program. Treated domestic and industrial wastewater is discharged into the Cane River, a class C; Tr waterbody in the French Broad River Basin. Outfall 001 is approximately 32 miles upstream of the NC/Tenn state border. In their application, the Town noted that the volume of daily I&I is unknown. The Town hired McGill and Associates (McGill) to study I&I at the facility and McGill reported that as much as 64% of the flow at the plant over a 1-year period may be due to I&I. The Town is working with McGill and DWR on an Page 1 of 12 established SOC (SC21-003, signed 12/06/2021, attached) to complete necessary upgrades for I&I mitigation. The Town identified multiple improvement projects to be completed in 2024 and 2026, including refurbishing the sewer interceptors in both sides of the collection system, installing a new gear drive, and upgrading the plant headworks, blower electric system and laboratory. Sludge disposal: Sludge is currently dewatered and sent to the sludge compost facility (WQ0002834). 2. Receiving Waterbody Information: Receiving Waterbody Information Outfalls/Receiving Stream(s): Outfall 001 —Cane River Stream Segment: 7-3-(13.7) Stream Classification: C; Tr Drainage Area (mi2): 56.9 Summer 7Q10 (cfs) 19 Winter 7Q10 (cfs): 26 30Q2 (cfs): 40 Average Flow (cfs): 97 IWC (% effluent): 6 2022 303(d) listed/parameter: Not listed (2022 Integrated Report lists Fish Community as Data Inconclusive) Subject to TMDL/parameter: Yes- State wide Mercury TMDL implementation. Basin/HUC: French Broad River/ 06010108 USGS Topo Quad: D9NE 3. Effluent Data Summary Effluent data for Outfall 001 is summarized below for the period of January 2019 through March 2023. Table 1. Effluent Data Summary Outfall 001 Permit Parameter Units Average Max Min Limit Flow MGD 0.65 4.79 0.0684 MA 0.8 WA 45.0 BOD mg/1 15.0 77 < 2 MA 30.0 Monitor & NH3N mg/1 4.3 18.3 < 0.2 Report WA 45.0 TSS mg/1 7.7 61 < 2 MA 30.0 6.0 > pH < PH SU 6.4 7.66 5.64 9.0 (geometric) Fecal coliform #/100 ml (geoI > 6000 < 1 WA 400 I MA 200 DM 28.0 TRC µg/l 17.6 48 < 1 (< 50 compliance) Monitor & Temperature ° C 15.5 30.3 7 Report Page 2 of 12 Monitor & TN mg/1 10.6 12.41 8.73 Report TP mg/l 1.6 2.1 0.862 Monitor & Report Oil & Grease mg/1 5 7.6 2 WA 60.0 MA 30.0 Total Lead µg/l < 5 < 10 < 1 Monitor & Report Total Copper µg/l 3.8 14 < I Monitor & Report Total Silver µg/1 < 5 < 10 < I Monitor & Report Total Hardness mg/1 31.8 79.9 g Monitor & Report MA -Monthly Average, WA -Weekly Average, DM -Daily Maximum, DA=Daily Average Notification of imposition of Sewer Line Moratorium was provided to the Town of Burnsville for the Burnsville WWTP on February 11, 2020, with the statutory moratorium taking effect 45 days later. The average daily flow from January 2019 through March 2023 was 0.65 MGD, which is 85% of the permitted flow of 0.8 MGD. Annual flow data from January 2019 through March 2023 has been summarized in Table 2 below. Table 2. Annual Effluent Flow Data Summary Year Flow [MGD] Average Max Min 2019 0.66 1.4 0.0684 2020 0.83 1.936 0.354 2021 0.58 1.288 0.229 2022 0.52 4.79 0.219 2023 0.63 4.36 0.415 As described in the facility background section above, McGill conducted an I&I study on behalf of the Town and reported that as much as 64% of the flow at the plant over a 1-year period may be due to I&I. The Town is working with McGill and DWR to complete necessary upgrades for I&I mitigation as required in SOC SC21-003. The Town has identified multiple improvement projects to be completed in 2024 and 2026, including refurbishing the sewer interceptors in both sides of the collection system, installing a new gear drive, and upgrading the plant headworks, blower electric system and laboratory. 4. Instream Data Summary Instream monitoring may be required in certain situations, for example: 1) to verify model predictions when model results for instream DO are within 1 mg/l of instream standard at full permitted flow; 2) to verify model predictions for outfall diffuser; 3) to provide data for future TMDL; 4) based on other instream concerns. Instream monitoring may be conducted by the Permittee, and there are also Monitoring Coalitions established in several basins that conduct instream sampling for the Permittee (in which case instream monitoring is waived in the permit as long as coalition membership is maintained). If applicable, summarize any instream data and what instream monitoring will be proposed for this permit action: The current permit does not require instream monitoring; no data are available for review. Instream monitoring for DO, Fecal Coliform, Temperature, Conductivity, Ammonia and pH was required beginning June 2008 due to concerns of plant upsets, observed stream impacts and effluent violations. Page 3 of 12 This increased monitoring was reverted in November 2008 after reviewed plant -submitted information demonstrated three months of substantial compliance and significantly improved WWTP performance. As the facility discharges into classified Trout waters, instream temperature monitoring has been added. Instream monitoring for ammonia and pH has been added to the permit. Please see Ammonia and Total Residual Chlorine Limitations for more information. Upstream and downstream samples shall be grab samples collected 1/week. Weekly monitoring has been deemed appropriate given the size of the discharge relative to the receiving stream. Instream sampling shall be conducted at least 50 feet upstream of the discharge and at least 500 feet from the discharge. The permit does require quarterly upstream hardness monitoring. The facility reported an average upstream hardness of 16.0 mg/L (range 5.1 mg/L — 67.4 mg/L). Is this facility a member of a Monitoring Coalition with waived instream monitoring (YIN): NO Name of Monitoring Coalition: NA 5. Compliance Summary Summarize the compliance record with permit effluent limits (past 5 years): The facility reported three BOD limit violations and seven flow limit violations in 2020 resulting in enforcement. In 2023, the facility reported one pH limit violation resulting in enforcement. The facility is currently under SOC SC21-003 for improvements to the Town's collection system and WWTP. Summarize the compliance record with aquatic toxicity test limits and any second species test results (past 5 years): The facility passed 17 of 17 quarterly chronic toxicity tests as well as all 4 second species chronic toxicity tests from March 2019 to March 2023. Summarize the results from the most recent compliance inspection: The last facility inspection conducted in December 2019 reported that the facility was compliant. In January 2020, the Asheville Regional Office (ARO) was notified that draw -down of the 0.3 MGD contact stabilization unit for a planned repair of the clarifier revealed non -repairable structural failure of the clarifier. This was verified by Burnsville's consulting engineer: McGill Associates. The integrated nature of this train renders the entire train non - operable and non -repairable. ARO verified the structural failure and discussed mitigation measures with the Town. More on this technical support visitation may be found in the attached Inspection Report. In their April 2023 through June 2023 Quarterly Report as part of SOC21-003, the Town notified the Division of receipt of additional funding bringing the total funding for Burnsville WWTP improvements to $8.85 million, as well as the completion of a contract with WithersRavenel as the Town's Engineering Firm of choice for WWTP improvements. With the additional funding, the Town has altered the scope of work for rehabilitation of the Burnsville WWTP to replace the existing 0.3 MGD contact stabilization unit with a 0.5 MGD treatment unit instead of a 0.3 MGD unit. The new plan also includes rehabilitation of the existing 0.5 MGD treatment unit. The last pretreatment inspection conducted in January 2023 reported that the facility was compliant. 6. Water Quality -Based Effluent Limitations (WQBELs) Dilution and MixingZones In accordance with 15A NCAC 213.0206, the following streamflows are used for dilution considerations for development of WQBELs: 1Q10 streamflow (acute Aquatic Life); 7Q10 streamflow (chronic Aquatic Life; non -carcinogen HH); 30Q2 streamflow (aesthetics); annual average flow (carcinogen, HH). Page 4 of 12 If applicable, describe any other dilution factors considered (e.g., based on CORMIX model results): NA If applicable, describe any mixing zones established in accordance with 15,4 NCAC 2B.0204(b): NA Oxygen -Consuming Waste Limitations Limitations for oxygen -consuming waste (e.g., BOD) are generally based on water quality modeling to ensure protection of the instream dissolved oxygen (DO) water quality standard. Secondary TBEL limits (e.g., BOD= 30 mg/1 for Municipals) may be appropriate if deemed more stringent based on dilution and model results. If permit limits are more stringent than TBELs, describe how limits were developed: The existing limitations for BOD5 at TBELs and have existed in the permit since its inception in 1981. In 1996, modeling was conducted to verify that the TBELs were appropriate as part of a wasteload allocation prepared during the renewal process. No changes are proposed. Note: The 1996 modeling verified no limit or monitoring requirement was necessary for dissolved oxygen. Ammonia and Total Residual Chlorine Limitations Limitations for ammonia are based on protection of aquatic life utilizing an ammonia chronic criterion of 1.0 mg/l (summer) and 1.8 mg/1(winter). Acute ammonia limits are derived from chronic criteria, utilizing a multiplication factor of 3 for Municipals and a multiplication factor of 5 for Non -Municipals. Limitations for Total Residual Chlorine (TRC) are based on the NC water quality standard for protection of aquatic life (17 ug/1) and capped at 28 ug/1(acute impacts). Due to analytical issues, all TRC values reported below 50 ug/1 are considered compliant with their permit limit. Describe any proposed changes to ammonia and/or TRC limits for this permit renewal: TRC limits have been reviewed in the attached WLA and have been found to be protective. No changes are proposed. The current permit does not set limitations for ammonia. Ammonia requirements have been reviewed in the attached WLA for toxicity. Based on this review, a monthly average ammonia limit of 13.0 mg/L has been proposed. A weekly average limit has been determined at a 3:1 ratio of weekly average to monthly average, based on the 2002 Implementation Policy for Permits with Monthly Average NH3-N Limits. As the weekly average limit for ammonia is greater than 35.0 mg/L, the weekly average limit has been capped at 35.0 mg/L. Effluent data from January 2019 through March 2023 has been compared to the proposed limitation in Figure 1 below. Page 5 of 12 Effluent Ammonia versus Proposed Limit 0 10 • M • +�+ 8 C CV V 6 • o U 4 • • • • •• E Q 2 • •• •• • • ••• 0 I I 1 10/27/2018 7/4/2019 3/10/2020 11/15/2020 7/23/2021 3/30/2022 12/5/2022 8/12/2023 Date • Monthly Average Effluent Ammonia Monthly Average Limit Proposed Figure 1. Comparison of Monthly Average Limit to Effluent Data No violation of the proposed monthly average limit was observed and no individual sample was reported at a concentration greater than the proposed weekly average limit during the period reviewed. As such, a compliance schedule for total ammonia limits is not considered necessary. Per the July 2022 U.S. Fish and Wildlife Service report on the Appalachian Elktoe, "the Cane River formerly contained a functional subpopulation of Appalachian elktoe but following a chemical spill in 2008 associated with the Town of Burnsville Wastewater Treatment Plant near the upper end of distribution for Appalachian elktoe in the Cane River, the population died off and has not recovered. The wastewater plant has continued to have spills of raw sewage and equipment failures that likely contributes to the lack of rebound in 11 the population. Gravel mining further up the river may also contribute to limited recovery of this subpopulation. This subpopulation is currently part of reintroduction efforts by the NCWRC, but the population viability remains in question due to habitat degradation." Future evaluation of the recovery status of the endangered Appalachian elktoe may result in reassessment of ammonia requirements outlined in permit NCO020290 for the Burnsville WWTP. To aid in future assessments, instream monitoring for ammonia, pH and temperature has been added to the permit. Reasonable Potential Analysis (RPA) for Toxicants If applicable, conduct RPA analysis and complete information below. The need for toxicant limits is based upon a demonstration of reasonable potential to exceed water quality standards, a statistical evaluation that is conducted during every permit renewal utilizing the most recent effluent data for each outfall. The RPA is conducted in accordance with 40 CFR 122.44 (d) (i). The NC RPA procedure utilizes the following: 1) 95% Confidence Level/95% Probability; 2) assumption of zero background; 3) use of detection limit for "less than" values; and 4) streamflows used for dilution consideration based on 15A NCAC 2B.0206. Effective April 6, 2016, NC began implementation of dissolved metals criteria in the RPA process in accordance with guidance titled NPDES Implementation of Instream Dissolved Metals Standards, dated June 10, 2016. A reasonable potential analysis was conducted on effluent toxicant data collected between January 2019 and March 2023. Pollutants of concern included toxicants with positive detections and associated water Page 6 of 12 quality standards/criteria. Based on this analysis, the following permitting actions are proposed for this permit: • Effluent Limit with Monitoring. The following parameters will receive a water quality -based effluent limit (WQBEL) since they demonstrated a reasonable potential to exceed applicable water quality standards/criteria: Total Silver (MA 0.97 ug/L, DM 4.18 ug/L)* • MonitoringOnly. nly. The following parameters will receive a monitor -only requirement since they did not demonstrate reasonable potential to exceed applicable water quality standards/criteria, but the maximum predicted concentration was >50% of the allowable concentration: None • No Limit or Monitoring: The following parameters will not receive a limit or monitoring, since they did not demonstrate reasonable potential to exceed applicable water quality standards/criteria and the maximum predicted concentration was <50% of the allowable concentration: Total Copper, Total Lead, Oil and Grease • POTW Effluent Pollutant Scan Review: Three effluent pollutant scans (2019, 2020, 2021) were evaluated for additional pollutants of concern. o The following parameter(s) will receive a water quality -based effluent limit (WQBEL) with monitoring, since as part of a limited data set, two samples exceeded the allowable discharge concentration: None o The following parameter(s) will receive a monitor -only requirement, since as part of a limited data set, one sample exceeded the allowable discharge concentration: None o The following parameters will not receive a limit or monitoring, since they did not demonstrate reasonable potential to exceed applicable water quality standards/criteria and the maximum predicted concentration was <50% of the allowable concentration: Total Arsenic, Total Beryllium, Total Cadmium, Total Phenolic Compounds, Total Cyanide, Total Nickel, Total Selenium, Total Zinc *Total Silver monitoring shall be conducted using a PQL < 1 ug/L The current permit sets limits and weekly monitoring for Oil and Grease. The facility reported 3 detections during the period reviewed, with the highest reported value of 15 mg/L occurring during the 2019 effluent pollutant scan. As only one detection was at a level at 50% of the chronic allowable discharge concentration, the limits and monitoring requirements for Oil and Grease have been removed. If applicable, attach a spreadsheet of the RPA results as well as a copy of the Dissolved Metals Implementation Fact Sheet for freshwater/saltwater to this Fact Sheet. Include a printout of the RPA Dissolved to Total Metal Calculator sheet if this is a Municipality with a Pretreatment Program. Toxicity Testing Limitations Permit limits and monitoring requirements for Whole Effluent Toxicity (WET) have been established in accordance with Division guidance (per WET Memo, 8/2/1999). Per WET guidance, all NPDES permits issued to Major facilities or any facility discharging "complex" wastewater (contains anything other than domestic waste) will contain appropriate WET limits and monitoring requirements, with several exceptions. The State has received prior EPA approval to use an Alternative WET Test Procedure in NPDES permits, using single concentration screening tests, with multiple dilution follow-up upon a test failure. Describe proposed toxicity test requirement: A chronic WET limit at 6% effluent will continue on a quarterly frequency. Mercury Statewide TMDL Evaluation There is a statewide TMDL for mercury approved by EPA in 2012. The TMDL target was to comply with EPA's mercury fish tissue criteria (0.3 mg/kg) for human health protection. The TMDL established a wasteload allocation for point sources of 37 kg/year (81 lb/year), and is applicable to municipals and industrial facilities with known mercury discharges. Given the small contribution of mercury from point Page 7 of 12 sources (-2% of total load), the TMDL emphasizes mercury minimization plans (MMPs) for point source control. Municipal facilities > 2 MGD and discharging quantifiable levels of mercury (>1 ng/1) will receive an MMP requirement. Industrials are evaluated on a case -by -case basis, depending if mercury is a pollutant of concern. Effluent limits may also be added if annual average effluent concentrations exceed the WQBEL value (based on the NC WQS of 12 ng/1) and/or if any individual value exceeds a TBEL value of 47 ng/l. Table 3. Mercury Effluent Data Summary 2023 # of Samples 3 Annual Average Conc. n /L 1.9 Maximum Conc., n /L 2.41 TBEL, n /L 47 WQBEL, n /L 195.9 Describe proposed permit actions based on mercury evaluation: The Town had not conducted low level mercury testing using EPA Method 1631E at the time the renewal application was submitted. Upon Division request, the Town conducted 3 sampling events for low level mercury in July 2023. Since no annual average mercury concentration exceeded the WQBEL, and no individual mercury sample exceeded the TBEL, no mercury limit is required. Since the facility is < 2.0 MGD facility in capacity, no mercury minimization plan (MMP) special condition is required. Other TMDL/Nutrient Management Strategy Considerations If applicable, describe any other TMDLs/Nutrient Management Strategies and their implementation within this permit: NA Other WQBEL Considerations If applicable, describe any other parameters of concern evaluated for WQBELs: As required by Session Law 2018-5, Senate Bill 99, Section I LI r), every applicant shall submit documentation of any additional pollutants for which there are certified methods with the permit application if their discharge is anticipated via a Chemical Addendum to NPDES Application table. As an attachment to the permit application, the Town informed the Division that no monitoring for additional pollutants has been conducted (see attached chemical addendum) and therefore no additional pollutants of concern have been identified. The Burnsville WWTP received influent wastewater from 1 CIU which is a metal finisher (Altec Industries, Inc.) Per request by the Division, the Town conducted 3 sampling events for 1,4-Dioxane of their CIU per week for a 2-week span, resulting in 6 total Altec Industries, Inc. samples. The samples were collected on June 27, July 5, July 6, July 7, July 10, and July 11, 2023. All samples were reported as non -detect at < 2 µg/L. As the sole industry in the Town's pretreatment program reported no detectable levels of 1,4-dioxane during their 2-week sampling event, 1,4-dioxane requirements have not been added to the permit at this time. As the Burnsville WWTP discharges approximately 32 miles upstream of the NC/Tenn state border, monitoring of PFAS chemicals will be added to the permit at a frequency of quarterly. Since an EPA method for sampling and analyzing PFAS in wastewater is not currently available, the PFAS sampling requirement in the Permit includes a compliance schedule which delays the effective date of this requirement until the first full calendar quarter beginning 6 months after EPA has a final wastewater method in 40 CFR136 published in the Federal Register. This date may be extended upon request and if there are no NC -certified labs. If applicable, describe any special actions (HQW or ORW) this receiving stream and classification shall comply with in order to protect the designated waterbody: NA Page 8 of 12 If applicable, describe any compliance schedules proposed for this permit renewal in accordance with 15A NCAC 2K 0107( c)(2)(B), 40CFR 122.47, and EPA May 2007 Memo: As total silver demonstrated reasonable potential to exceed the facility's allowable discharge concentration based on state surface water standards, monthly average and daily maximum limits have been put in the permit for total silver. After discussing the limits with the Permittee, the Permittee requested a schedule of compliance to provide time to locate issues and come into compliance with the new limits. A 3-year compliance schedule has been put in the permit. Within 1 year of the permit's effective date, the Permittee shall submit to DWR an Action Plan for Division approval, summarizing the strategy or actions to be taken to achieve compliance with the total silver limitations. The plan will include specific dates for completion or implementation of each action. Within 2 years of the permit's effective date, the Permittee shall submit a report to the Division summarizing actions taken in accordance with the Action Plan. The Town shall achieve compliance with total silver limitations within 3 years of the permit's effective date. If applicable, describe any water quality standards variances proposed in accordance with NCGS 143- 215.3(e) and 15A NCAC 2B.0226 for this permit renewal: NA 7. Technology -Based Effluent Limitations (TBELs) Municipals if not applicable, delete and skip to Industrials) Are concentration limits in the permit at least as stringent as secondary treatment requirements (30 mg/l BODS/TSS for Monthly Average, and 45 mg/l for BODS/TSS for Weekly Average). YES If NO, provide a justification for alternative limitations (e.g., waste stabilization pond). NA Are 85% removal requirements for BOD51TSS included in the permit? YES; Overall removal of BOD and TSS was > 85% during the period reviewed. However, removal rates for both parameters dropped below 85% on occasion during the period reviewed, most notably in 2020. If NO, provide a justification (e.g., waste stabilization pond). NA 8. Antidegradation Review (New/Expanding Discharge): The objective of an antidegradation review is to ensure that a new or increased pollutant loading will not degrade water quality. Permitting actions for new or expanding discharges require an antidegradation review in accordance with 15A NCAC 2B.0201. Each applicant for a new/expanding NPDES permit must document an effort to consider non -discharge alternatives per 15A NCAC 2H.0105( c)(2). In all cases, existing instream water uses and the level of water quality necessary to protect the existing use is maintained and protected. If applicable, describe the results of the antidegradation review, including the Engineering Alternatives Analysis (EAA) and any water quality modeling results: NA 9. Antibacksliding Review: Sections 402(o)(2) and 303(d)(4) of the CWA and federal regulations at 40 CFR 122.44(1) prohibit backsliding of effluent limitations in NPDES permits. These provisions require effluent limitations in a reissued permit to be as stringent as those in the previous permit, with some exceptions where limitations may be relaxed (e.g., based on new information, increases in production may warrant less stringent TBEL limits, or WQBELs may be less stringent based on updated RPA or dilution). Are any effluent limitations less stringent than previous permit (YES/NO): Yes If YES, confirm that antibacksliding provisions are not violated: As only one detection was at a level at 50% of the chronic allowable discharge concentration, the limits and monitoring requirements for Oil and Grease have been removed. Additionally, monitoring has been removed for total copper and total lead as the reasonable potential analysis demonstrated no reasonable potential for excursions above copper and lead surface water standards. Page 9 of 12 10. Monitoring Requirements Monitoring frequencies for NPDES permitting are established in accordance with the following regulations and guidance: 1) State Regulation for Surface Water Monitoring, 15A NCAC 213.0500; 2) NPDES Guidance, Monitoring Frequency for Toxic Substances (7/15/2010 Memo); 3) NPDES Guidance, Reduced Monitoring Frequencies for Facilities with Superior Compliance (10/22/2012 Memo); 4) Best Professional Judgement (BPJ). Per US EPA (Interim Guidance, 1996), monitoring requirements are not considered effluent limitations under Section 402(o) of the Clean Water Act, and therefore anti - backsliding prohibitions would not be triggered by reductions in monitoring frequencies. For instream monitoring, refer to Section 4. 11. Electronic Reporting Requirements The US EPA NPDES Electronic Reporting Rule was finalized on December 21, 2015. Effective December 21, 2016, NPDES regulated facilities are required to submit Discharge Monitoring Reports (DMRs) electronically. While NPDES regulated facilities would initially be required to submit additional NPDES reports electronically effective December 21, 2020, EPA extended this deadline from December 21, 2020, to December 21, 2025. The current compliance date, effective January 4, 2021, was extended as a final regulation change published in the November 2, 2020 Federal Register. This permit contains the requirements for electronic reporting, consistent with Federal requirements. 12.Summary of Proposed Permitting Actions: Table 4. Current Permit Conditions and Proposed Changes Outfall 001 Parameter Current Permit Proposed Change Basis for Condition/Change Flow MA 0.8 MGD No change 15A NCAC 2B .0505 BOD5 MA 30.0 mg/l No change TBEL. 1996 Modeling confirmation for WA 45.0 mg/l applicability of TBEL; Surface Water Monitor and report Monitoring, 15A NCAC 2B. 0508 3/week NH3-N Monitor and report MA 13.0 mg/l WQBEL. 2023 WLA; Surface Water 3/week WA 35.0 mg/1 Monitoring, 15A NCAC 2B. 0508 Monitor and report 3/week TSS MA 30.0 mg/1 No change TBEL. Secondary treatment standards/40 WA 45.0 mg/1 CFR 133 / 15A NCAC 213 .0406; Monitor and report Surface Water Monitoring, 15A NCAC 3/week 2B. 0508 Fecal coliform MA 200 /100ml No change WQBEL. State WQ standard, 15A WA 400 /100ml NCAC 213 .0200; Surface Water Monitor and report Monitoring, 15A NCAC 2B. 0500 3/week Temperature Monitor and Report Daily No change Surface Water Monitoring, 15A NCAC 2B. 0508 pH 6 — 9 SU No change WQBEL. State WQ standard, 15A Monitor and Report NCAC 213 .0200; 15A NCAC 02B .0500 3/week Total Residual DM 28 ug/L No change WQBEL. 2023 WLA. Surface Water Chlorine Monitor and Report Monitoring, 15A NCAC 2B. 0500 3/week Page 10 of 12 TKN No requirement Monitor and For calculation of TN Report semi- annually Nitrate + No requirement Monitor and For calculation of TN Nitrite Report semi- annually Total Nitrogen Monitor and Report semi- No change Surface Water Monitoring, 15A NCAC annually 2B. 0500 Total Monitor and Report semi- No change Surface Water Monitoring, 15A NCAC Phosphorus annually 2B.0500 Oil & Grease MA 30.0 mg/L Remove Based on Data Review and RPA; No RP, WA 60.0 mg/L requirements single value reported at 50% Allowable Monitor and Report Cw in 2019 - no limit or monitoring Weekly Total Copper Monitor and report Remove Based on results of Reasonable Potential Quarterly requirement Analysis (RPA); No RP, Predicted Max < 50% of Allowable Cw - No Monitoring required Total Lead Monitor and Report Remove Based on results of Reasonable Potential Quarterly requirement Analysis (RPA). No RP, Predicted Max < 50% of Allowable Cw - No Monitoring required Total Silver Monitor and Report MA 0.97 ug/L Based on results of Reasonable Potential Quarterly DM 4.18 ug/L Analysis (RPA); RP shown - apply Monitor and Monthly Monitoring with Limit Report Monthly 3-year schedule of compliance Total Hardness Quarterly monitoring No changes Hardness -dependent dissolved metals Upstream and in Effluent water quality standards approved in 2016 Add quarterly Evaluation of PFAS contribution: PFAS No requirement monitoring with discharges above state border; delayed Implementation delayed until after EPA im lementation certified method becomes available. Toxicity Test Chronic limit, 6% No change WQBEL. No toxics in toxic amounts. effluent 15A NCAC 2B.0200 and 15A NCAC 213.0500 Effluent Three times per permit No change; 40 CFR 122 Pollutant Scan cycle conducted in 2025, 2026, 2027 Instream No requirement Monitor and Surface Water Monitoring, 15A NCAC Monitoring Report 2B. 0508 — Trout waters; verification of temperature, pH no impact on stream and endangered and ammonia species; assessment of site -specific 1/week ammonia requirements Electronic Electronic Reporting No change In accordance with EPA Electronic Reporting Special Condition I Reporting Rule 2015. MGD — Million gallons per day, MA - Monthly Average, WA — Weekly Average, DM — Daily Max Page 11 of 12 13. Public Notice Schedule: Permit to Public Notice: 9/6/2023 Per 15A NCAC 2H .0109 & .0111, The Division will receive comments for a period of 30 days following the publication date of the public notice. Any request for a public hearing shall be submitted to the Director within the 30 days comment period indicating the interest of the party filing such request and the reasons why a hearing is warranted. 14. NPDES Division Contact If you have any questions regarding any of the above information or on the attached permit, please contact Nick Coco at (919) 707-3609 or via email at nick.cocogdeq.nc.gov. 15. Fact Sheet Addendum (if applicable): The draft was submitted to the Town of Burnsville, EPA Region IV, the Division of Water Resources' Asheville Regional Office, Aquatic Toxicology Branch, Pretreatment Unit, and Operator Certification Program, the North Carolina Wildlife Resources Commission, US Fish and Wildlife Services, and Tennessee Department of Environment and Conservation for review. Comments were received from the North Carolina Wildlife Resources Commission and US Fish and Wildlife Services on 10/20/2023 concurring with the Division's addition of instream monitoring for ammonia, pH and temperature and requesting the Division continue to consult with the two parties regarding future actions with this permit. No comments were received from any other party. Were there any changes made since the Draft Permit was public noticed (Yes/No): YES If Yes, list changes and their basis below: • PFAS monitoring has been added to Section A.(1.) Effluent Limitations and Monitoring Requirements to reflect the requirements specified in Special condition A.(5.) PFAS Monitoring Requirement. 16. Fact Sheet Attachments (if applicable): • RPA Spreadsheet Summary • NPDES Implementation of Instream Dissolved Metals Standards — Freshwater Standards • NH3/TRC WLA Calculations • BOD & TSS Removal Rate Calculations • Mercury TMDL Calculations • Monitoring Frequency Reduction Evaluation • POC Review Form • WET Testing and Self -Monitoring Summary • Compliance Inspection Report • Requested Additional Information • Chemical Addendum • Requested Sampling Page 12 of 12 AFFIDAVIT OF PUBLICATION -September 6, 2023--Page 9 �ment E LEGAL NOTICE Public Notice North Carolina Environmental Management Commission/ NPDES Unit 1617 Mail Service Center Raleigh, NC 27699-1617 Notice of Intent to Issue a NPDES Wastewater Permit NCO020290 Burnsville WWTP The North Carolina Environ- mental Management Commis- sion proposes to issue a NPDES wastewater discharge permit to the person(s) listed below. Written comments regarding the proposed permit will be accepted until 30 days after the publish date of this notice. The Director of the NC Division of Water Resources (DWR) may hold a public hearing should there be a significant degree of public interest. Please mail comments and/or information requests to DWR at the above address. Interested persons may visit the DWR at 512 N. Salisbury Street, Raleigh, NC 27604 to review the information on file. Additional information on NPDES permits and this notice may be found on our website: https://deq.nc.gov/ public -notices -hearing s,or by calling (919) 707-3601.The Town of Burnsville [PO Box 97, Burnsville, NC 28714] has requested renewal of NP- DES permit NCO020290 for its Burnsville Wastewater Treat- ment Plant, located in Yancey County. This permitted facility discharges treated municipal and industrial wastewater to the Cane River, a class C;Trout water in the French Broad River Basin. Currently ammonia, fecal coliform, pH, total re- sidual chlorine and total silver are water quality limited. This discharge may affect future al- locations in this segment of the Cane River. Published September 6, _2W 3 NORTH CAROLINA YANCEY COUNTY Before the undersigned, a Notary Public of said County and State, duly commissioned, qualified, and authorized by law to administer oaths, personally appeared Anna Webb who being first duly sworn, deposes and says: that he (she) is Business Manager (Owner, partner, publisher, or other office or employee authorized to make this affidavit) of The Yancey Common Tunes Journal (The Yancey Journal Inc.) published, issued, and entered as second class mail in the Town of Burnsville in said County and State; that he (she) is authorized to make this affidavit and sworn statement; that the notice or other advertisement, a true copy of which is attached hereto, was published in The Yancey Common Times Journal (The Yancey Journal Inc.) on the following dates: September 6, 2023 and that the said newspaper in which such notice, paper, document, or 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. This 7 dayof September 2023 (Signature of person making affidavit) Sworn to an bscribed before me, this ,--7,, day of 1�Vl/ilJ lYYiEV My Commission e ® North Carolina Wildlife Resources Commission 9 Cameron Ingram, Executive Director October 20, 2023 Mr. Nick Coco NC Division of Water Resources 1617 Mail Service Center Raleigh, NC, 27699 SUBJECT: NPDES Permit NC0020290 Renewal Yancey County Dear Mr. Coco: Biologists with the North Carolina Wildlife Resources Commission (NCWRC) reviewed information concerning the proposed National Pollutant Discharge Elimination System (NPDES) permit renewal for the Town of Burnsville's wastewater treatment plant (NC0020290). Comments from the NCWRC on the permit action are provided under provisions of the Clean Water Act of 1977 (as amended), Fish and Wildlife Coordination Act (48 Stat. 401, as amended; 16 U.S.C. 661-667d), North Carolina General Statutes (G.S. 113-131 et seq.), and North Carolina Administrative Code 15A NCAC 10I.0102. The Town is operating under a Special Order of Consent (SOC), as it has been unable to comply with its collection system permit and NPDES permit due to frequent sanitary sewer overflows (SSOs) and NPDES permit flow limit exceedances. These problems have resulted in releases of untreated or partially treated sewage to Pine Swamp Creek and the Cane River. The Cane River is part of the Cane River Aquatic Habitat, a NC Natural Heritage Program natural area rated Very High due to its ecological importance and richness of rare species it supports, including Appalachian Elktoe [Alasmidonta raveneliana, US and NC Endangered (E)], Eastern Hellbender [Cryptobranchus alleganiensis, US Federal Species of Concern (FSC), NC Special Concern (SC)], Wavy -rayed Lampmussel (Lampsilis fasciola, NC SC), Striped Shiner (Luxilus chrysocephalus, NC SC), and Blotched Chub (Erimystax insignis, NC Significantly Rare). The SOC stipulates that the Town rehabilitate and upgrade the Burnsville Collection System and WWTP. Numerous improvements to the sewer collection system, associated pump stations, and WWTP have been made or are scheduled, and a GIS stormwater mapping project has been implemented. The NCWRC supports efforts to resolve the chronic issues with SSOs, difficulties for the Burnsville WWTP in treating waste, and other issues with the Burnsville Collection System. This should benefit the Cane River and the species it supports. Mailing Address: Habitat Conservation • 1721 Mail Service Center • Raleigh, NC 27699-1721 Telephone: (919) 707-0220 • Fax: (919) 707-0028 NPDES NCO020290 Renewal Page 2 October 20, 2023 Yancey County The NPDES permit renewal language includes new monitoring requirements for ammonia. Both effluent and in -stream monitoring will be required. Weekly in -stream monitoring of pH, temperature, and ammonia would be required, which we support in order to determine if an in -stream ammonia limit is needed. For reference, the agreed upon ammonia limits for the Micaville WWTP [specified by the US Fish and Wildlife Service (USFWS) in their 2014 Biological Opinion] are 4.3 mg/L for a single in -stream monitoring event or 0.3 mg/L from two consecutive in -stream monitoring events within a 30-day period. The Cane River and South Toe River bear many similarities in watershed land use, geology, habitat, and aquatic fauna, and these limits are likely similar to what could be applicable to the Cane River. We ask that the NC Division of Water Resources (NCDWR) work with both the USFWS and NCWRC on future ammonia monitoring and possible permit limits. We urge NC Division of Water Resources to consult with the USFWS on this permit renewal, given the involvement of the USFWS in the past with the Burnsville WWTP and its impacts to the Cane River and the federally listed Appalachian Elktoe. Thank you for the opportunity to review and comment further on this permit action. Please contact Andrea Leslie at (828) 400-4223 if there are any questions about these comments. Sincerely, Andrea Leslie Mountain Habitat Conservation Coordinator ec: Bryan Tompkins, US Fish and Wildlife Service Freshwater RPA - 95% Probability/95% Confidence Using Metal Translators MAXIMUM DATA POINTS = 58 Table 1. Project Information ❑ CHECK IF HQW OR ORW WQS Facility Name Burnsville WWTP WWTP/WTP Class III NPDES Permit NCO020290 Outfall 001 Flow, Qw (MGD) 0.800 Receiving Stream Cane River HUC Number 06010108 Stream Class ❑ Apply WS Hardness WQC C;Tr 7Q10s (cfs) 19.000 26.00 7Q10w (cfs) 30Q2 (cfs) 40.00 QA (cfs) 97.00 1 Q10s (cfs) 15.69 Effluent Hardness 31.84 mg/L (Avg) Upstream Hardness 25 mg/L (Avg) Combined Hardness Chronic 25.42 mg/L Combined Hardness Acute 25.5 mg/L Data Source(s) Default upstream hardness of 25 mg/L used due to average of reported DMR data being < 25 mg/L. ❑ CHECK TO APPLY MODEL REQUIRED DATA ENTRY Par01 Par02 Par03 Par04 Par05 Par06 E Par07 Par08 Par09 Par10 Par11 Par12 Par13 Par14 Par15 Par16 Par17 Par18 Par19 Par20 Par21 Par22 Par23 Par24 Table 2. Parameters of Concern Name WQS Type Chronic Modifier Acute PQL Units Arsenic Aquactic Life C 150 FW 340 ug/L Arsenic Human Health Water Supply C 10 HH/WS N/A ug/L Beryllium Aquatic Life NC 6.5 FW 65 ug/L Cadmium Aquatic Life NC 0.5973 FW 3.2962 ug/L Chlorides Aquatic Life NC 230 FW mg/L Chlorinated Phenolic Compounds Water Supply NC 1 A ug/L Total Phenolic Compounds Aquatic Life NC 300 A ug/L Chromium III Aquatic Life NC 119.3459 FW 919.9056 ug/L Chromium VI Aquatic Life NC 11 FW 16 pg/L Chromium, Total Aquatic Life NC N/A FW N/A pg/L Copper Aquatic Life NC 7.9933 FW 10.6696 ug/L Cyanide Aquatic Life NC 5 FW 22 10 ug/L Fluoride Aquatic Life NC 1,800 FW ug/L Lead Aquatic Life NC 2.9972 FW 77.1922 ug/L Mercury Aquatic Life NC 12 FW 0.5 -,^" Molybdenum Human Health NC 2000 HH ug/L Nickel Aquatic Life NC 37.7585 FW 340.8814 pg/L Nickel Water Supply NC 25.0000 WS N/A pg/L Selenium Aquatic Life NC 5 FW 56 ug/L Silver Aquatic Life NC 0.06 FW 0.3067 ug/L Zinc Aquatic Life NC 128.5307 FW 127.8358 ug/L Oil & Grease Human Health NC 30 HH 45 mg/L 20290 RPA, input 8/25/2023 REASONABLE POTENTIAL ANALYSIS H1 I Effluent Hardness Date 1 3/6/2019 2 6/3/2019 3 9/10/2019 4 12/3/2019 5 3/3/2020 6 6/9/2020 7 9/17/2020 8 12/8/2020 9 3/1/2021 10 6/16/2021 11 9/14/2021 12 12/1 /2021 13 3/1/2022 14 6/8/2022 15 9/7/2022 16 12/19/2022 17 3/29/2023 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 Data BDL=1/2DL Results 51.3 51.3 Std Dev. 10.5 10.5 Mean 8 8 C.V. 67.2 67.2 n 19.8 19.8 10th Per value 18.4 18.4 Average Value 26.5 26.5 Max. Value 20.1 20.1 8.47 8.47 8.88 8.88 57.9 57.9 61.6 61.6 8.9 8.9 39 39 10.1 10.1 44.7 44.7 79.9 79.9 H2 Use "PASTE SPECIAL Values" then "COPY" Maximum data points = 58 24.1196 1 31.8382 2 0.7576 3 17 4 8.72 mg/L 5 31.84 mg/L 6 79.90 mg/L 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 Upstream Hardness Date Data BDL=1/2DL Results Default 25 25 Std Dev. Mean C.V. n 10th Per value Average Value Max. Value Use "PASTE SPECIAL Values" then "COPY" Maximum data points = 58 N/A 25.0000 0.0000 1 25.00 mg/L 25.00 mg/L 25.00 mg/L 20290 RPA, data - 1 - 8/25/2023 REASONABLE POTENTIAL ANALYSIS Par01 & Par02 Date Data 1 12/17/2019 < 2 10/7/2020 < 3 8/21 /2021 < 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 Arsenic BDL=1/2DL 10 5 10 5 10 5 Results Std Dev. Mean C.V. (default) n Mult Factor = Max. Value Max. Pred Cw Use "PASTE SPECIAL Values" then "COPY" Maximum data points = 58 0.0000 5.0000 0.6000 3 3.00 5.0 ug/L 15.0 ug/L -2- 20290 RPA, data 8/25/2023 REASONABLE POTENTIAL ANALYSIS Par03 Date Data 1 12/17/2019 < 2 10/7/2020 < 3 8/21 /2021 < 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 Par04 Use "PASTE SPECIAL Use "PASTE SPECIAL Beryllium Values" then "COPY" Cadmium Values" then "COPY" Maximum data . Maximum data points = 58 points = 58 BDL=1/2DL Results Date Data BDL=1/2DL Results 5 2.5 Std Dev. 0.0000 1 12/17/2019 < 2 1 Std Dev. 0.0000 5 2.5 Mean 2.5000 2 10/7/2020 < 2 1 Mean 1.0000 5 2.5 C.V. (default) 0.6000 3 8/21/2021 < 2 1 C.V. (default) 0.6000 n 3 4 n 3 5 Mult Factor = 3.00 6 Mult Factor = 3.00 Max. Value 2.50 ug/L 7 Max. Value 1.000 ug/L Max. Pred Cw 7.50 ug/L 8 Max. Pred Cw 3.000 ug/L 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 < ERR 53 < ERR 54 < ERR 55 < ERR 56 < ERR 57 < ERR 58 < ERR 20290 RPA, data -3- 8/25/2023 REASONABLE POTENTIAL ANALYSIS Par07 Total Phenolic Compounds Use "PASTE SPECIAL - Values" then "COPY". Par10 Maximum data points = 58 Date Data BDL=1/2DL Results Date Data 1 12/17/2019 < 10 5 Std Dev. 0.0000 1 12/17/2019 < 2 10/7/2020 < 10 5 Mean 5.0000 2 10/7/2020 < 3 8/21/2021 < 10 5 C.V. (default) 0.6000 3 8/21/2021 < 4 n 3 4 5 5 6 Mult Factor = 3.00 6 7 Max. Value 5.0 ug/L 7 8 Max. Pred Cw 15.0 ug/L 8 9 9 10 10 11 11 12 12 13 13 14 14 15 15 16 16 17 17 18 18 19 19 20 20 21 21 22 22 23 23 24 24 25 25 26 26 27 27 28 28 29 29 30 30 31 31 32 32 33 33 34 34 35 35 36 36 37 37 38 38 39 39 40 40 41 41 42 42 43 43 44 44 45 45 46 46 47 47 48 48 49 49 50 50 51 51 52 52 53 53 54 54 55 55 56 56 57 57 58 58 Use "PASTE SPECIAL Chromium, Total Values" then "COPY" Maximum data points = 58 BDL=1/2DL Results 5 2.5 Std Dev. 0.0000 5 2.5 Mean 2.5000 5 2.5 C.V. (default) 0.6000 n 3 Mult Factor = 3.00 Max. Value 2.5 pg/L Max. Pred Cw 7.5 pg/L -4- 20290 RPA, data 8/25/2023 REASONABLE POTENTIAL ANALYSIS Pal Date Data 1 3/6/2019 < 2 3/11/2019 < 3 6/3/2019 < 4 9/10/2019 < 5 12/3/2019 < 6 3/3/2020 < 7 6/9/2020 < 8 9/17/2020 9 12/8/2020 < 10 3/1/2021 11 4/6/2021 12 6/16/2021 13 9/14/2021 14 12/1/2021 < 15 3/1/2022 < 16 6/8/2022 17 9/7/2022 < 18 12/19/2022 19 3/29/2023 20 12/17/2019 21 10/7/2020 22 8/21 /2021 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 Par12 Use "PASTE SPECIAL Copper Values" then "COPY" Maximum data points = 58 BDL=1/2DL Results 1 0.5 Std Dev. 1 0.5 Mean 1 0.5 C.V. 1 0.5 n 1 0.5 1 0.5 Mult Factor = 1 0.5 Max. Value 2 2 Max. Pred Cw 1 0.5 4 4 1.1 1.1 13.1 13.1 2.7 2.7 5 2.5 5 2.5 14 14 5 2.5 5.5 5.5 6.2 6.2 11 11 29 29 2.36 2.36 Cyanide Date Data BDL=1/2DL Results 6.8171 1 12/17/2019 < 5 5 Std Dev. 4.6573 2 10/7/2020 < 5 5 Mean 1.4638 3 8/21/2021 < 5 5 C.V. (default) 22 4 n 5 1.72 6 29.00 ug/L 7 49.88 ug/L 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 Mult Factor = Max. Value Max. Pred Cw Use "PASTE SPECIAL Values" then "COPY" Maximum data points = 58 0.0000 5.00 0.6000 3 3.00 5.0 ug/L 15.0 ug/L -5- 20290 RPA, data 8/25/2023 REASONABLE POTENTIAL ANALYSIS Par14 Date 1 3/6/2019 < 2 6/3/2019 < 3 9/10/2019 < 4 12/3/2019 < 5 3/3/2020 < 6 6/9/2020 < 7 9/17/2020 < 8 12/8/2020 < 9 3/1/2021 < 10 6/16/2021 11 9/14/2021 < 12 12/1/2021 < 13 3/1/2022 < 14 6/8/2022 < 15 9/7/2022 < 16 12/19/2022 < 17 3/29/2023 < 18 10/7/2020 < 19 8/21 /2021 < 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 Par17 & Par18 use "PASTE Use "PASTE SPECIAL SPECIAL - Lead values" then "COPY" Nickel values" then Maximum data "COPY". points = 58 Maximum data BDL=1/2DL Results Date Data BDL=1/2DL Results points = 58 10 5 Std Dev. 1.6327 1 12/17/2019 < 10 5 Std Dev. 1.7898 10 5 Mean 3.7126 2 10/7/2020 < 10 5 Mean 3.9667 10 5 C.V. 0.4398 3 8/21/2021 1.9 1.9 C.V. (default) 0.6000 10 5 n 19 4 n 3 10 5 5 10 5 Mult Factor = 1.28 6 Mult Factor = 3.00 10 5 Max. Value 5.000 ug/L 7 Max. Value 5.0 pg/L 10 5 Max. Pred Cw 6.400 ug/L 8 Max. Pred Cw 15.0 pg/L 2 1 9 1.54 1.54 10 1 0.5 11 5 2.5 12 5 2.5 13 10 5 14 5 2.5 15 5 2.5 16 5 2.5 17 10 5 18 10 5 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 20290 RPA, data -6- 8/25/2023 REASONABLE POTENTIAL ANALYSIS Par19 Selenium Use "PASTE SPECIAL - Values" then "COPY' . Par20 Maximum data points = 58 Date Data BDL=1/2DL Results Date Data 1 12/17/2019 < 10 5 Std Dev. 0.0000 1 3/6/2019 < 2 10/7/2020 < 10 5 Mean 5.0000 2 6/3/2019 < 3 8/21/2021 < 10 5 C.V. (default) 0.6000 3 9/10/2019 < 4 n 3 4 12/3/2019 < 5 5 3/3/2020 < 6 Mult Factor = 3.00 6 6/9/2020 < 7 Max. Value 5.0 ug/L 7 9/17/2020 < 8 Max. Pred Cw 15.0 ug/L 8 12/8/2020 < 9 9 3/1/2021 < 10 10 6/16/2021 < 11 11 9/14/2021 < 12 12 12/1/2021 < 13 13 3/1/2022 < 14 14 6/8/2022 < 15 15 9/7/2022 < 16 16 12/19/2022 < 17 17 3/29/2023 < 18 18 12/17/2019 19 19 10/7/2020 20 20 8/21 /2021 < 21 21 22 22 23 23 24 24 25 25 26 26 27 27 28 28 29 29 30 30 31 31 32 32 33 33 34 34 35 35 36 36 37 37 38 38 39 39 40 40 41 41 42 42 43 43 44 44 45 45 46 46 47 47 48 48 49 49 50 50 51 51 52 52 53 53 54 54 55 55 56 56 57 57 58 58 Silver BDL=1/2DL Results 1 0.5 Std Dev. 1 0.5 Mean 1 0.5 C.V. 1 0.5 n 1 0.5 1 0.5 Mult Factor = 1 0.5 Max. Value 1 0.5 Max. Pred Cw 2 1 1 0.5 1 0.5 5 2.5 5 2.5 10 5 5 2.5 5 2.5 5 2.5 6 6 2 2 5 2.5 Use "PASTE SPECIAL Values" then "COPY" Maximum data points = 58 1.5927 1.7000 0.9369 20 1.56 6.000 ug/L 9.360 ug/L -7- 20290 RPA, data 8/25/2023 REASONABLE POTENTIAL ANALYSIS Par21 Par22 use "PASTE Use "PASTE SPECIAL SPECIAL -Values" Zinc Values" then "COPY" Oil & Grease then "COPY". . Maximum data Maximum data points = 58 points = 58 Date Data BDL=1/2DL Results Date Data BDL=1/2DL Results 1 12/17/2019 21 21 Std Dev. 14.8071 1 4/19/2021 7.2 7.2 Std Dev. 1.8533 2 10/7/2020 38 38 Mean 36.5000 2 4/26/2021 7.6 7.6 Mean 2.8845 3 8/21/2021 50.5 50.5 C.V. (default) 0.6000 3 12/17/2019 15 15 C.V. 0.6425 4 n 3 4 3/15/2022 < 5 2.5 n 58 5 5 3/22/2022 < 5 2.5 6 Mult Factor = 3.00 6 3/29/2022 < 5 2.5 Mult Factor = 1.00 7 Max. Value 50.5 ug/L 7 4/5/2022 < 5 2.5 Max. Value 15.0 mg/L 8 Max. Pred Cw 151.5 ug/L 8 4/12/2022 < 5 2.5 Max. Pred Cw 15.0 mg/L 9 9 4/19/2022 < 5 2.5 10 10 4/26/2022 < 5 2.5 11 11 5/3/2022 < 5 2.5 12 12 5/10/2022 < 5 2.5 13 13 5/17/2022 < 5 2.5 14 14 5/24/2022 < 5 2.5 15 15 6/1/2022 < 5 2.5 16 16 6/7/2022 < 5 2.5 17 17 6/14/2022 < 5 2.5 18 18 6/21 /2022 < 5 2.5 19 19 6/28/2022 < 5 2.5 20 20 7/7/2022 < 5 2.5 21 21 7/12/2022 < 5 2.5 22 22 7/19/2022 < 5 2.5 23 23 7/27/2022 < 5 2.5 24 24 8/3/2022 < 5 2.5 25 25 8/9/2022 < 5 2.5 26 26 8/16/2022 < 5 2.5 27 27 8/24/2022 < 5 2.5 28 28 8/30/2022 < 5 2.5 29 29 9/7/2022 < 5 2.5 30 30 9/13/2022 < 5 2.5 31 31 9/20/2022 < 5 2.5 32 32 9/28/2022 < 5 2.5 33 33 10/4/2022 < 5 2.5 34 34 10/11 /2022 < 5 2.5 35 35 10/18/2022 < 5 2.5 36 36 10/25/2022 < 5 2.5 37 37 11 /1 /2022 < 5 2.5 38 38 11 /8/2022 < 5 2.5 39 39 11/15/2022 < 5 2.5 40 40 11 /22/2022 < 5 2.5 41 41 11 /30/2022 < 5 2.5 42 42 12/6/2022 < 5 2.5 43 43 12/13/2022 < 5 2.5 44 44 12/19/2022 < 5 2.5 45 45 12/29/2022 < 5 2.5 46 46 1 /5/2023 < 5 2.5 47 47 1 /10/2023 < 5 2.5 48 48 1/18/2023 < 5 2.5 49 49 1 /24/2023 < 5 2.5 50 50 1 /31 /2023 < 5 2.5 51 51 2/7/2023 < 5 2.5 52 52 2/14/2023 < 5 2.5 53 53 2/21 /2023 < 5 2.5 54 54 3/1 /2023 < 5 2.5 55 55 3/7/2023 < 5 2.5 56 56 3/15/2023 < 5 2.5 57 57 3/21 /2023 < 5 2.5 58 58 3/29/2023 < 5 2.5 20290 RPA, data -8- 8/25/2023 Burnsville WWTP Outfall 001 N00020290 Freshwater RPA - 95% Probability/95% Confidence Using Metal Translators MAXIMUM DATA POINTS = 58 Qw (MGD) = 0.8000 1Q10S (cfs) = 15.69 7Q10S (cfs) = 19.00 7Q10W (cfs) = 26.00 30Q2 (cfs) = 40.00 Avg. Stream Flow, QA (cfs) = 97.00 Receiving Stream: Cane River HUC 06010108 WWTP/WTP Class: III IWC% @ 1Q10S = 7.324276432 IWC% @ 7Q10S = 6.126482213 IWC% @ 7Q 1 OW = 4.552129222 IWC% @ 30Q2 = 3.006789525 IW%C @ QA = 1.262214984 Stream Class: C;Tr Qw = 0.8 MGD COMBINED HARDNESS (mg/L) Acute = 25.5 mg/L Chronic = 25.42 mg/L PARAMETER NC STANDARDS OR EPA CRITERIA CO REASONABLE POTENTIAL RESULTS RECOMMENDED ACTION TYPE J D Applied Chronic Acute n # Det. Max Pred Cw Allowable Cw Standard Acute (FW): 4,642.1 Arsenic C 150 FW(7Q10s) 340 ug/L 3 0 15.0 Chronic (FW): 2,448.4 C.V. (default) Max MDL10 Arsenic C 10 HH/WS(Qavg) ug/L Note: n < 9 NO DETECTS _= Chronic (HH): 792.3 No RP, Predicted Max < 50% of Allowable Cw - No Limited data set Max MDL = 10 Monitoring required Acute: 887.46 Beryllium NC 6.5 FW(7Q 1 Os) 65 ug/L 3 0 7.50 Note: n < 9 C.V. (default) Chronic: 106.10 No RP, Predicted Max < 50% of Allowable Cw - No Limited data set NO DETECTS Max MDL = 5 Monitoring required Acute: 45.004 Cadmium NC 0.5973 FW(7Q10s) 3.2962 ug/L 3 0 3.000 Note: n < 9 C.V. (default) Chronic: 9.750 No RP, Predicted Max < 50% of Allowable Cw - No Limited data set NO DETECTS Max MDL = 2 Monitoring required Acute: NO WQS Total Phenolic Compounds NC 300 A(30Q2) ug/L 3 0 15.0 Note: n < 9 C.V. (default) Chronic: 9,977.4 No RP, Predicted Max < 50% of Allowable Cw - No Limited data set NO DETECTS Max MDL = 10 Monitoring required Acute: 12,559.7 Chromium III NC 119.35 FW(7Q10s) 919.91 µg/L 0 0 N/A Chronic: -----1 948.0 - ---------------------------- Acute: 218.5 Chromium VI NC 11 FW(7Q10s) 16 µg/L 0 0 N/A Chronic:----- 179.5-- ---------------------------- a: No monitoring required if all Total Chromium Chromium, Total NC µg /L 3 0 7.5 Max reported value 2. -5 P - samples are < 5 pg/L or Pred. max for Total Cr is < Note: n < 9 C.V. (default) allowable Cw for Cr VI. Limited data set NO DETECTS Max MDL = 5 Acute: 145.67 Copper NC 7.9933 FW(7Ql Os) 10.6696 ug/L 22 11 49.88 Chronic: 130.47 No RP, Predicted Max < 50% of Allowable Cw - No No value > Allowable Cw Monitoring required Acute: 300.4 Cyanide NC 5 FW(7010s) 22 10 ua/L 3 0 15.0 Note: n < 9 C.V. (default) _ _ _ _ _ _ _ _ _ _ _ _ Chronic: 81.6 _ _ _ _ _ _ _ _ _ _ _ _ _ _ No RP, Predicted Max < 50% of Allowable Cw - No Limited data set NO DETECTS Max MDL = 10 Monitoring required Acute: 1,053.922 Lead NC 2.9972 FW(7Q l Os) 77.1922 ug/L 19 1 6.400 Chronic: 48.922 No RP, Predicted Max < 50% of Allowable Cw - No 20290 RPA, rpa Page 1 of 2 8/25/2023 Burnsville WWTP Outfall 001 NCO020290 Freshwater RPA - 95% Probability/95% Confidence Using Metal Translators Qw = 0.8 MGD No value > Allowable Cw Monitoring required Acute (FW): 4,654.1 Nickel NC 37.7585 FW(7QlOs) 340.8814 µg/L 3 1 15.0 Chronic (FW): 616.3 No RP, Predicted Max < 50% of Allowable Cw - No Note: n < 9 C.V. (default) No value > Allowable Cw Monitoring required Nickel NC 25.0000 WS(7QlOs) µg/L Limited data set Chronic (WS): 408.1 No value > Allowable Cw Acute: 764.6 Selenium NC 5 FW(7Q10s) 56 ug/L 3 0 15.0 Note: n < 9 C.V. (default) Chronic: 81.6 No RP, Predicted Max < 50% of Allowable Cw - No Limited data set NO DETECTS Max MDL = 10 Monitoring required Acute: 4.187 Silver NC 0.06 FW(7Q10s) 0.3067 ug/L 20 2 9.360 Chronic:----- 0.979-- ---------------------------- 10 values > Allowable Cw RP shown - apply Monthly Monitoring with Limit Acute: 1,745.4 No RP, Predicted Max >_ 50% of Allowable Cw - Zinc NC ####### FW(7Q10s) 127.8358 ug/L 3 3 151.5 apply Quarterly Monitoring Note: n < 9 C.V. (default) ------------------------------------------------- Chronic: 2,098.0 Limited data set No value > Allowable Cw Acute: 45.00000 Oil & Grease NC 30 HH(7Q10s) 45 mg/L 58 3 15.00000 Chronic: 30.000 No RP , single value reported at 50% Allowable Cw in No value > Allowable Cw 2019 - no limit or monitoring 20290 RPA, rpa Page 2 of 2 8/25/2023 Permit No. NCO020290 NPDES Implementation of Instream Dissolved Metals Standards - Freshwater Standards The NC 2007-2015 Water Quality Standard (WQS) Triennial Review was approved by the NC Environmental Management Commission (EMC) on November 13, 2014. The US EPA subsequently approved the WQS revisions on April 6, 2016, with some exceptions. Therefore, metal limits in draft permits out to public notice after April 6, 2016 must be calculated to protect the new standards - as approved. Table 1. NC Dissolved Metals Water Q ality Standards/A uatic Life Protection Parameter Acute FW, µg/l (Dissolved) Chronic FW, µg/l (Dissolved) Acute SW, µg/1 (Dissolved) Chronic SW, µg/1 (Dissolved) Arsenic 340 150 69 36 Beryllium 65 6.5 --- --- Cadmium Calculation Calculation 40 8.8 Chromium III Calculation Calculation --- --- Chromium VI 16 11 1100 50 Copper Calculation Calculation 4.8 3.1 Lead Calculation Calculation 210 8.1 Nickel Calculation Calculation 74 8.2 Silver Calculation 0.06 1.9 0.1 Zinc Calculation Calculation 90 81 Table 1 Notes: 1. FW= Freshwater, SW= Saltwater 2. Calculation = Hardness dependent standard 3. Only the aquatic life standards listed above are expressed in dissolved form. Aquatic life standards for Mercury and selenium are still expressed as Total Recoverable Metals due to bioaccumulative concerns (as are all human health standards for all metals). It is still necessary to evaluate total recoverable aquatic life and human health standards listed in 15A NCAC 2B.0200 (e.g., arsenic at 10 µg/1 for human health protection; cyanide at 5 µg/L and fluoride at 1.8 mg/L for aquatic life protection). Table 2. Dissolved Freshwater Standards for Hardness -Dependent Metals The Water Effects Ratio (WER) is equal to one unless determined otherwise under 15A NCAC 02B .0211 Subparagraph (11)(d) Metal NC Dissolved Standard, µg/I Cadmium, Acute WER* {1. 136672-[ln hardness](0.041838)} e^10.9151 [ln hardness]-3.1485} Cadmium, Acute Trout waters WER* {1. 136672-[ln hardness](0.041838)} e^{0.9151[In hardness]-3.62361 Cadmium, Chronic WER*{1.101672-[ln hardness](0.041838)} • e^{0.7998[ln hardness] -4.445 11 Chromium III, Acute WER*0.316 e^{0.8190[ln hardness]+3.7256} Chromium III, Chronic WER*0.860 e^{0.8190[ln hardness]+0.6848} Copper, Acute WER*0.960 e^{0.9422[ln hardness]-1.700} Copper, Chronic WER*0.960 e^{0.8545[ln hardness]-1.702} Lead, Acute WER*{1.46203-[ln hardness](0.145712)} • e^{1.273[ln hardness]-1.460} Lead, Chronic WER*{1.46203-[ln hardness](0.145712)} • e^{1.273[ln hardness]-4.705) Nickel, Acute WER*0.998 e^{0.8460[ln hardness]+2.255} Nickel, Chronic WER*0.997 e^{0.8460[ln hardness]+0.0584} Page 1 of 4 Permit No. NCO020290 Silver, Acute WER*0.85 • e"O.72[ln hardness]-6.59} Silver, Chronic Not applicable Zinc, Acute WER*0.978 e^{0.8473[ln hardness]+0.884} Zinc, Chronic WER*0.986 e^{0.8473[ln hardness]+0.884} General Information on the Reasonable Potential Analysis (RPA) The RPA process itself did not change as the result of the new metals standards. However, application of the dissolved and hardness -dependent standards requires additional consideration in order to establish the numeric standard for each metal of concern of each individual discharge. The hardness -based standards require some knowledge of the effluent and instream (upstream) hardness and so must be calculated case -by -case for each discharge. Metals limits must be expressed as `total recoverable' metals in accordance with 40 CFR 122.45(c). The discharge -specific standards must be converted to the equivalent total values for use in the RPA calculations. We will generally rely on default translator values developed for each metal (more on that below), but it is also possible to consider case -specific translators developed in accordance with established methodology. RPA Permitting Guidance/WOBELs for Hardness -Dependent Metals - Freshwater The RPA is designed to predict the maximum likely effluent concentrations for each metal of concern, based on recent effluent data, and calculate the allowable effluent concentrations, based on applicable standards and the critical low -flow values for the receiving stream. If the maximum predicted value is greater than the maximum allowed value (chronic or acute), the discharge has reasonable potential to exceed the standard, which warrants a permit limit in most cases. If monitoring for a particular pollutant indicates that the pollutant is not present (i.e. consistently below detection level), then the Division may remove the monitoring requirement in the reissued permit. To perform a RPA on the Freshwater hardness -dependent metals the Permit Writer compiles the following information: • Critical low flow of the receiving stream, 7Q10 (the spreadsheet automatically calculates the 1 Q 10 using the formula 1 Q 10 = 0.843 (s7Q 10, cfs) 0.993 • Effluent hardness and upstream hardness, site -specific data is preferred • Permitted flow • Receiving stream classification 2. In order to establish the numeric standard for each hardness -dependent metal of concern and for each individual discharge, the Permit Writer must first determine what effluent and instream (upstream) hardness values to use in the equations. The permit writer reviews DMR's, Effluent Pollutant Scans, and Toxicity Test results for any hardness data and contacts the Permittee to see if any additional data is available for instream hardness values, upstream of the discharge. If no hardness data is available, the permit writer may choose to do an initial evaluation using a default hardness of 25 mg/L (CaCO3 or (Ca + Mg)). Minimum and maximum limits on the hardness value used for water quality calculations are 25 mg/L and 400 mg/L, respectively. If the use of a default hardness value results in a hardness -dependent metal showing reasonable potential, the permit writer contacts the Permittee and requests 5 site -specific effluent and upstream hardness samples over a period of one week. The RPA is rerun using the new data. Page 2 of 4 Permit No. NCO020290 The overall hardness value used in the water quality calculations is calculated as follows: Combined Hardness (chronic) _ (Permitted Flow, cfs *Avg. Effluent Hardness, mg/L)+s7Q10, cfs *Avg. Upstream Hardness, mg/L) (Permitted Flow, cfs + s7Q 10, cfs) The Combined Hardness for acute is the same but the calculation uses the IQ 10 flow. 3. The permit writer converts the numeric standard for each metal of concern to a total recoverable metal, using the EPA Default Partition Coefficients (DPCs) or site -specific translators, if any have been developed using federally approved methodology. EPA default partition coefficients or the "Fraction Dissolved" converts the value for dissolved metal at laboratory conditions to total recoverable metal at in -stream ambient conditions. This factor is calculated using the linear partition coefficients found in The Metals Translator: Guidance for Calculating a Total Recoverable Permit Limit from a Dissolved Criterion (EPA 823-B-96-007, June 1996) and the equation: Cdiss = 1 Ctotal I + { [Kp.] [ss('+a)] [10 6] } Where: ss = in -stream suspended solids concentration [mg/1], minimum of 10 mg/L used, and Kpo and a = constants that express the equilibrium relationship between dissolved and adsorbed forms of metals. A list of constants used for each hardness -dependent metal can also be found in the RPA program under a sheet labeled DPCs. 4. The numeric standard for each metal of concern is divided by the default partition coefficient (or site -specific translator) to obtain a Total Recoverable Metal at ambient conditions. In some cases, where an EPA default partition coefficient translator does not exist (ie. silver), the dissolved numeric standard for each metal of concern is divided by the EPA conversion factor to obtain a Total Recoverable Metal at ambient conditions. This method presumes that the metal is dissolved to the same extent as it was during EPA's criteria development for metals. For more information on conversion factors see the June, 1996 EPA Translator Guidance Document. 5. The RPA spreadsheet uses a mass balance equation to determine the total allowable concentration (permit limits) for each pollutant using the following equation: Ca = (s7Q 10 + Qw) (Cwgs) — (s7Q10) (Cb) Qw Where: Ca = allowable effluent concentration (µg/L or mg/L) Cwqs = NC Water Quality Standard or federal criteria (µg/L or mg/L) Cb = background concentration: assume zero for all toxicants except NH3* (µg/L or mg/L) Qw = permitted effluent flow (cfs, match s7Q 10) s7Q 10 = summer low flow used to protect aquatic life from chronic toxicity and human health through the consumption of water, fish, and shellfish from noncarcinogens (cfs) * Discussions are on -going with EPA on how best to address background concentrations Flows other than s7Q 10 may be incorporated as applicable: IQ 10 = used in the equation to protect aquatic life from acute toxicity Page 3 of 4 Permit No. NC0020290 QA = used in the equation to protect human health through the consumption of water, fish, and shellfish from carcinogens 30Q2 = used in the equation to protect aesthetic quality 6. The permit writer enters the most recent 2-3 years of effluent data for each pollutant of concern. Data entered must have been taken within four and one-half years prior to the date of the permit application (40 CFR 122.21). The RPA spreadsheet estimates the 95th percentile upper concentration of each pollutant. The Predicted Max concentrations are compared to the Total allowable concentrations to determine if a permit limit is necessary. If the predicted max exceeds the acute or chronic Total allowable concentrations, the discharge is considered to show reasonable potential to violate the water quality standard, and a permit limit (Total allowable concentration) is included in the permit in accordance with the U.S. EPA Technical Support Document for Water Quality -Based Toxics Control published in 1991. 7. When appropriate, permit writers develop facility specific compliance schedules in accordance with the EPA Headquarters Memo dated May 10, 2007 from James Hanlon to Alexis Strauss on 40 CFR 122.47 Compliance Schedule Requirements. The Total Chromium NC WQS was removed and replaced with trivalent chromium and hexavalent chromium Water Quality Standards. As a cost savings measure, total chromium data results may be used as a conservative surrogate in cases where there are no analytical results based on chromium III or VI. In these cases, the projected maximum concentration (95th %) for total chromium will be compared against water quality standards for chromium III and chromium VI. 9. Effluent hardness sampling and instream hardness sampling, upstream of the discharge, are inserted into all permits with facilities monitoring for hardness -dependent metals to ensure the accuracy of the permit limits and to build a more robust hardness dataset. 10. Hardness and flow values used in the Reasonable Potential Analysis for this permit included: Parameter Value Comments (Data Source) Average Effluent Hardness (mg/L) [Total as, CaCO3 or (Ca+Mg)] 31.84 Average from DMR review for data from March 2019 — March 2023 Average Upstream Hardness (mg/L) [Total as, CaCO3 or (Ca+Mg)] 25 Default used; average from review period below 25 mg/L. 7Q 10 summer (cfs) 19 Historical file; previous fact sheet IQIO (cfs) 15.69 Calculated in RPA Permitted Flow (MGD) 0.8 NPDES Files Date: 6/12/2023 Permit Writer: Nick Coco Page 4 of 4 NCO020290 Burnsville WWTP BOD monthly removal rate Month January-19 February-19 March-19 April-19 May-19 June-19 July-19 August-19 September-19 October-19 November-19 December-19 January-20 February-20 March-20 April-20 May-20 June-20 July-20 August-20 September-20 October-20 November-20 December-20 January-21 February-21 March-21 April-21 May-21 June-21 RR (%) 94.58 86.60 92.98 95.10 96.28 94.57 87.01 88.84 91.50 89.37 86.56 83.17 76.09 66.31 65.66 69.64 68.61 74.80 56.31 76.45 75.32 71.63 82.15 84.73 92.64 95.35 92.60 93.00 94.46 92.42 Month July-21 August-21 September-21 October-21 November-21 December-21 January-22 February-22 March-22 April-22 May-22 June-22 July-22 August-22 September-22 October-22 November-22 December-22 January-23 February-23 March-23 April-23 May-23 June-23 July-23 August-23 September-23 October-23 November-23 December-23 Overall BOD removal rate RR (%) 91.25 88.25 95.07 92.69 89.47 92.86 92.33 84.46 83.70 83.85 85.96 87.45 93.18 97.20 93.76 96.69 95.49 96.85 93.52 94.80 95.58 87.04 6/2/2023 TSS monthly removal rate Month January-19 February-19 March-19 April-19 May-19 June-19 July-19 August-19 September-19 October-19 November-19 December-19 January-20 February-20 March-20 Apri I-20 May-20 June-20 July-20 August-20 September-20 October-20 November-20 December-20 January-21 February-21 March-21 April-21 May-21 June-21 RR (%) 94.95 95.65 95.27 95.14 96.92 96.42 94.46 88.80 92.44 91.64 88.85 88.74 91.64 81.03 82.51 78.91 84.82 94.57 90.50 84.69 83.72 95.87 94.00 96.25 96.79 95.23 92.74 95.78 95.88 96.63 Month July-21 August-21 September-21 October-21 November-21 December-21 January-22 February-22 March-22 April-22 May-22 June-22 July-22 August-22 September-22 October-22 November-22 December-22 January-23 February-23 March-23 April-23 May-23 June-23 July-23 August-23 September-23 October-23 November-23 December-23 Overall TSS removal rate RR (%) 96.72 96.73 94.56 96.21 98.16 95.61 95.77 94.36 95.95 95.52 95.33 96.77 96.90 97.55 97.37 96.89 97.12 96.94 97.85 97.82 97.75 93.70 Burnsville WWTP/NC0020290 Mercury Data Statistics (Method 1631E) 2023 # of Samples 3 Annual Average, ng/L 1.9 Maximum Value, ng/L 2.41 TBEL, ng/L 47 WQBEL, ng/L 195.9 Burnsville WWTP/NC0020290 Mercury Data Statistics (Method 1631E) 2023 # of Samples 3 Annual Average, ng/L 1.9 Maximum Value, ng/L 2.41 TBEL, ng/L 47 WQBEL, ng/L 195.9 MONITORING REPORT(MR) VIOLATIONS for: Permit: NCO020290 MRS Betweei 6 - 2018 and 6 - 2023 Region: % Facility Name: % Param Nam(% County: % Major Minor: % Report Date: 06/01/22 Page 1 of 4 Violation Category:Limit Violation Program Category: Subbasin: % Violation Action: % PERMIT: NCO020290 FACILITY: Town of Burnsville - Burnsville WWTP COUNTY: Yancey REGION: Asheville Limit Violation MONITORING VIOLATION UNIT OF CALCULATED % REPORT OUTFALL LOCATION PARAMETER DATE FREQUENCY MEASURE LIMIT VALUE Over VIOLATION TYPE VIOLATION ACTION 03 - 2020 001 Effluent BOD, 5-Day (20 Deg. C) - 03/21 /20 3 X week mg/I 45 47.13 4.7 Weekly Average Proceed to NOV Concentration Exceeded 03 - 2020 001 Effluent BOD, 5-Day (20 Deg. C) - 03/31 /20 3 X week mg/I 30 35.86 19.5 Monthly Average Proceed to NOV Concentration Exceeded 10 - 2020 001 Effluent BOD, 5-Day (20 Deg. C) - 10/31 /20 3 X week mg/I 30 39.37 31.2 Monthly Average Proceed to Concentration Exceeded Enforcement Case 04-2020 001 Effluent Chlorine, Total Residual 04/20/20 3 X week ug/I 28 40 42.9 Daily Maximum No Action, BPJ Exceeded 04-2020 001 Effluent Chlorine, Total Residual 04/27/20 3 X week ug/I 28 46 64.3 Daily Maximum No Action, BPJ Exceeded 04-2020 001 Effluent Chlorine, Total Residual 04/28/20 3 X week ug/I 28 35 25 Daily Maximum No Action, BPJ Exceeded 05-2020 001 Effluent Chlorine, Total Residual 05/04/20 3 X week ug/I 28 33 17.9 Daily Maximum No Action, BPJ Exceeded 05-2020 001 Effluent Chlorine, Total Residual 05/11/20 3 X week ug/I 28 38 35.7 Daily Maximum No Action, BPJ Exceeded 05-2020 001 Effluent Chlorine, Total Residual 05/18/20 3 X week ug/I 28 48 71.4 Daily Maximum No Action, BPJ Exceeded 05-2020 001 Effluent Chlorine, Total Residual 05/19/20 3 X week ug/I 28 39 39.3 Daily Maximum No Action, BPJ Exceeded 05-2020 001 Effluent Chlorine, Total Residual 05/27/20 3 X week ug/I 28 47 67.9 Daily Maximum No Action, BPJ Exceeded 05-2020 001 Effluent Chlorine, Total Residual 05/28/20 3 X week ug/I 28 41 46.4 Daily Maximum No Action, BPJ Exceeded 06-2020 001 Effluent Chlorine, Total Residual 06/01/20 3 X week ug/I 28 38 35.7 Daily Maximum No Action, BPJ Exceeded 06-2020 001 Effluent Chlorine, Total Residual 06/10/20 3 X week ug/I 28 40 42.9 Daily Maximum No Action, BPJ Exceeded 06-2020 001 Effluent Chlorine, Total Residual 06/15/20 3 X week ug/I 28 44 57.1 Daily Maximum No Action, BPJ Exceeded 06-2020 001 Effluent Chlorine, Total Residual 06/16/20 3 X week ug/I 28 47 67.9 Daily Maximum No Action, BPJ Exceeded MONITORING REPORT(MR) VIOLATIONS for: Permit: NCO020290 MRS Betweel 6 - 2018 and 6 - 2023 Region: % Facility Name: % Param Nam(% County: % Major Minor: % Report Date: 06/01/2� Page 2 of 4 Violation Category:Limit Violation Program Category: % Subbasin: % Violation Action: % PERMIT: NCO020290 FACILITY: Town of Burnsville - Burnsville WWTP COUNTY: Yancey REGION: Asheville Limit Violation MONITORING VIOLATION UNIT OF CALCULATED % REPORT OUTFALL LOCATION PARAMETER DATE FREQUENCY MEASURE LIMIT VALUE Over VIOLATION TYPE VIOLATION ACTION 06-2020 001 Effluent Chlorine, Total Residual 06/22/20 3 X week ug/I 28 38 35.7 Daily Maximum No Action, BPJ Exceeded 06-2020 001 Effluent Chlorine, Total Residual 06/24/20 3 X week ug/I 28 47 67.9 Daily Maximum No Action, BPJ Exceeded 06-2020 001 Effluent Chlorine, Total Residual 06/29/20 3 X week ug/I 28 47 67.9 Daily Maximum No Action, BPJ Exceeded 07-2020 001 Effluent Chlorine, Total Residual 07/06/20 3 X week ug/I 28 29 3.6 Daily Maximum No Action, BPJ Exceeded 07-2020 001 Effluent Chlorine, Total Residual 07/07/20 3 X week ug/I 28 32 14.3 Daily Maximum No Action, BPJ Exceeded 07-2020 001 Effluent Chlorine, Total Residual 07/13/20 3 X week ug/I 28 32 14.3 Daily Maximum No Action, BPJ Exceeded 09-2020 001 Effluent Chlorine, Total Residual 09/21/20 3 X week ug/I 28 36 28.6 Daily Maximum No Action, BPJ Exceeded 10 - 2020 001 Effluent Chlorine, Total Residual 10/07/20 3 X week ug/I 28 42 50 Daily Maximum No Action, BPJ Exceeded 10-2020 001 Effluent Chlorine, Total Residual 10/26/20 3 X week ug/I 28 44 57.1 Daily Maximum No Action, BPJ Exceeded 10-2020 001 Effluent Chlorine, Total Residual 10/28/20 3 X week ug/I 28 41 46.4 Daily Maximum No Action, BPJ Exceeded 11 -2020 001 Effluent Chlorine, Total Residual 11/03/20 3 X week ug/I 28 31 10.7 Daily Maximum No Action, BPJ Exceeded 11 -2020 001 Effluent Chlorine, Total Residual 11/16/20 3 X week ug/I 28 32 14.3 Daily Maximum No Action, BPJ Exceeded 11 -2020 001 Effluent Chlorine, Total Residual 11/23/20 3 X week ug/I 28 30 7.1 Daily Maximum No Action, BPJ Exceeded 11 -2020 001 Effluent Chlorine, Total Residual 11/30/20 3 X week ug/I 28 45 60.7 Daily Maximum No Action, BPJ Exceeded 12-2020 001 Effluent Chlorine, Total Residual 12/02/20 3 X week ug/I 28 41 46.4 Daily Maximum No Action, BPJ Exceeded 12-2020 001 Effluent Chlorine, Total Residual 12/15/20 3 X week ug/I 28 32 14.3 Daily Maximum No Action, BPJ Exceeded MONITORING REPORT(MR) VIOLATIONS for: Permit: NCO020290 MRS Betweel 6 - 2018 and 6 - 2023 Region: % Facility Name: % Param Nam(% County: % Major Minor: % Report Date: 06/01/2� Page 3 of 4 Violation Category:Limit Violation Program Category: % Subbasin: % Violation Action: % PERMIT: NCO020290 FACILITY: Town of Burnsville - Burnsville WWTP COUNTY: Yancey REGION: Asheville Limit Violation MONITORING VIOLATION UNIT OF CALCULATED % REPORT OUTFALL LOCATION PARAMETER DATE FREQUENCY MEASURE LIMIT VALUE Over VIOLATION TYPE VIOLATION ACTION 12-2020 001 Effluent Chlorine, Total Residual 12/30/20 3 X week ug/I 28 29 3.6 Daily Maximum No Action, BPJ Exceeded 01 -2021 001 Effluent Chlorine, Total Residual 01/12/21 3 X week ug/I 28 29 3.6 Daily Maximum No Action, BPJ Exceeded 02-2021 001 Effluent Chlorine, Total Residual 02/01/21 3 Xweek ug/I 28 38 35.7 Daily Maximum No Action, BPJ Exceeded 02-2021 001 Effluent Chlorine, Total Residual 02/08/21 3 X week ug/I 28 45 60.7 Daily Maximum No Action, BPJ Exceeded 02-2021 001 Effluent Chlorine, Total Residual 02/15/21 3 X week ug/I 28 33 17.9 Daily Maximum No Action, BPJ Exceeded 02-2021 001 Effluent Chlorine, Total Residual 02/16/21 3 X week ug/I 28 29 3.6 Daily Maximum No Action, BPJ Exceeded 02-2021 001 Effluent Chlorine, Total Residual 02/23/21 3 X week ug/I 28 31 10.7 Daily Maximum No Action, BPJ Exceeded 02-2021 001 Effluent Chlorine, Total Residual 02/24/21 3 X week ug/I 28 42 50 Daily Maximum No Action, BPJ Exceeded 03-2021 001 Effluent Chlorine, Total Residual 03/03/21 3 X week ug/I 28 33 17.9 Daily Maximum No Action, BPJ Exceeded 03-2021 001 Effluent Chlorine, Total Residual 03/16/21 3 X week ug/I 28 42 50 Daily Maximum No Action, BPJ Exceeded 07-2021 001 Effluent Chlorine, Total Residual 07/19/21 3 X week ug/I 28 45 60.7 Daily Maximum No Action, BPJ Exceeded 08-2021 001 Effluent Chlorine, Total Residual 08/03/21 3 X week ug/I 28 30 7.1 Daily Maximum No Action, BPJ Exceeded 08-2021 001 Effluent Chlorine, Total Residual 08/10/21 3 X week ug/I 28 29 3.6 Daily Maximum No Action, BPJ Exceeded 08-2021 001 Effluent Chlorine, Total Residual 08/16/21 3 X week ug/I 28 39 39.3 Daily Maximum No Action, BPJ Exceeded 08-2021 001 Effluent Chlorine, Total Residual 08/30/21 3 X week ug/I 28 46 64.3 Daily Maximum No Action, BPJ Exceeded 09-2021 001 Effluent Chlorine, Total Residual 09/01/21 3 X week ug/I 28 29 3.6 Daily Maximum No Action, BPJ Exceeded MONITORING REPORT(MR) VIOLATIONS for: Permit: NCO020290 MRS Betweel 6 - 2018 and 6 - 2023 Region: % Facility Name: % Param Nam(% County: % Major Minor: % Report Date: 06/01/2� Page 4 of 4 Violation Category:Limit Violation Program Category: % Subbasin: % Violation Action: % PERMIT: NCO020290 FACILITY: Town of Burnsville - Burnsville WWTP COUNTY: Yancey REGION: Asheville Limit Violation MONITORING VIOLATION UNIT OF CALCULATED % REPORT OUTFALL LOCATION PARAMETER DATE FREQUENCY MEASURE LIMIT VALUE Over VIOLATION TYPE VIOLATION ACTION 09-2021 001 Effluent Chlorine, Total Residual 09/07/21 3 X week ug/I 28 29 3.6 Daily Maximum No Action, BPJ Exceeded 09-2021 001 Effluent Chlorine, Total Residual 09/08/21 3 X week ug/I 28 39 39.3 Daily Maximum No Action, BPJ Exceeded 09-2021 001 Effluent Chlorine, Total Residual 09/14/21 3 X week ug/I 28 31 10.7 Daily Maximum No Action, BPJ Exceeded 02 - 2020 001 Effluent Flow, in conduit or thru 02/29/20 Continuous mgd 0.8 0.95 18.6 Monthly Average Proceed to NOV treatment plant Exceeded 03-2020 001 Effluent Flow, in conduit or thru 03/31/20 Continuous mgd 0.8 0.89 11.3 Monthly Average Proceed to NOV treatment plant Exceeded 04 - 2020 001 Effluent Flow, in conduit or thru 04/30/20 Continuous mgd 0.8 0.82 1.9 Monthly Average Proceed to NOV treatment plant Exceeded 05-2020 001 Effluent Flow, in conduit or thru 05/31/20 Continuous mgd 0.8 0.88 10.3 Monthly Average Proceed to NOV treatment plant Exceeded 07-2020 001 Effluent Flow, in conduit or thru 07/31/20 Continuous mgd 0.8 0.98 22.9 Monthly Average Proceed to treatment plant Exceeded Enforcement Case 08-2020 001 Effluent Flow, in conduit or thru 08/31/20 Continuous mgd 0.8 0.95 18.4 Monthly Average Proceed to treatment plant Exceeded Enforcement Case 09 - 2020 001 Effluent Flow, in conduit or thru 09/30/20 Continuous mgd 0.8 0.85 6.8 Monthly Average Proceed to NOV treatment plant Exceeded 03-2023 001 Effluent pH 03/28/23 3 X week su 6 5.64 6 Daily Minimum Not Proceed to NOD Reached ,e,n.v,iroehe]m ANALYTICAL & CONSULTING CHEMISTS Environmental Chemists, Inc. 6602 Windmill Way, Wilmington, NC 28405 * 910.392.0223 Lab ■ 910.392.4424 Fax 710 Howsertown Road, Manteo, NC 27954 - 252.473,5702 Lab/Fax 255-A Wilmington Highway, Jacksonville, NC 28540 • 910.347.5843 Lab/Fax in ro@envi ronmentalchemists.com WQ Labs & Operations, Inc Date of Report: Jul 17, 2023 Post Office Box 1167 Customer PO #: Banner Elk NC 28604 Customer ID: 08110023 Attention: Report #: 2023-14123 Project ID: Altec Lab ID Sample ID: Collect DatelTime Matrix Sampled by 23-35113 Site: 627 6/27/2023 12:30 PM Water Client Test Method Results Date Analyzed 1,4-Dioxane SW-846 Method 82600 <2 pg/L 07/10/2023 Lab ID Sample ID: Collect DatelTime Matrix Sampled by 23-35120 Site: 0705 7/512023 3:00 PM Water Client Test Method Results Date Analyzed 1,4-Dioxane SW-846Method8260D <2 pg/L 07/10/2023 Lab ID Sample ID: Collect Daterrime Matrix Sampled by 23-35121 Site: 0706 7/6/2023 9:30 AM Water Client Test Method Results Date Analyzed 1,4-Dioxane Comment: Reviewed by: SW-846 Method 8260D <2 pg/L 07/10/2023 Report k:: 2023-14123 Paae 1 of 1 [envirochem ANALYTICAL & CONSULTING CHEMISTS Environmental Chemists, Inc. 6602 Windmill Way, Wilmington, NC 28405 IP 910.392,0223 Lab • 910.392.4424 Fax 710 Bowsertown Road, Manteo, NC 27954 • 252.473,5702 Lab/Fax 255-A Wilmington Highway, Jacksonville, NC 28540 • 910.347,5843 Lab/Fax info@environmentalchemists.com WQ Labs & Operations, Inc Date of Report: Aug 02, 2023 Post Office Box 1167 Customer PO #: Banner Elk NC 28604 Customer ID: 08110023 Attention: Report #: 2023-15057 Project ID: Altec Lab ID Sample ID: Collect Date/Time Matrix Sampled by 23-37262 Site: 0707 7/7/2023 8:30 AM Water Client Test Method Results Date Analyzed 1,4-Dioxane SW-846 Method 8200D <2 pg/L 07/18/23 Lab ID Sample ID: Collect DatelTime Matrix Sampled by 23-37263 Site: 0710 7/10/2023 9:00 AM Water Client Test Method Results Date Analyzed 1,4-Dioxane SW-846 Method 6260D <2 pg/L 07/18/23 Lab ID Sample ID: Collect DatelTime Matrix Sampled by 23-37264 Site: 0711 7/11/2023 8:45 AM Water Client Test Method Results Date Analyzed 1,4-Dioxane SW-646 Method 8260D <2 pg/L 07/18/23 Comment: , Reviewed by: 0, W�L Report #: 2023-16057 page 1 of t Environmental. Chemists, Inc. envirochem 6602 Windmill Way, Wilmington, NC 28405 ' 910.392.0223 Lab • 910,392.4424 Fax 710 Bowsertown Road, Manteo, NC 27954 • 252.473.5702 Lab/Fax s, 255-A Wilmington Highway, Jacksonville, NC 28540 ' 910.347.5843 Lab/Fax ANALYTICAL & CONSULTING CHEMISTS info(r1.environmentalchcmists.com WQ Labs & Operations, Inc Post Office Box 1167 Banner Elk NC 28604 Attention: Date of Report: Aug 01, 2023 Customer PO M Customer ID: 08110023 Report #: 2023-14127 Project ID: Burnsville WWTP Lab ID Sample ID: Collect DatelTime Matrix Sampled by 23-35126 Site: Burnsville WWTP 7/3/2023 9.20 AM Water Client Test Method Results Date Analyzed LL Mercury EPA 1631e 2.41 ng/L 07/29/2023 Lab ID Sample ID: Collect Date/Time Matrix Sampled by 23-35126A Site: Field Blank 7/3/2023 9.20 AM Water Client Test Method _ Results _ - Date Analyzed LL Mercury EPA 1631e <0.500 ng/L 07/29/2023 Lab ID Sample ID: Collect Date/Time Matrix Sampled by 23-35127 Site: Burnsville WWTP 7/512023 9:00 AM Water Client Test Method Results Date Analyzed LL Mercury EPA 1631e 1.73 ng/L 07/29/2023 Lab ID Sample ID: Collect DatelTime Matrix Sampled by 23-35127A Site: Field Blank 7/5/2023 9:00 AM Water Client Test Method Results Date Analyzed LL Mercury EPA 1631e <0.500 ng/L 07/29/2023 Lab ID Sample ID: Collect Date/Time Matrix Sampled by 23-35128 Site: Burnsville WWTP 7/6l2023 9:15 AM Water Client Test Method Results Date Analyzed LL Mercury EPA 1631e 1.42 ng/L 07/29/2023 Lab ID Sample 10: Collect DatelTime Matrix Sampled by 23-35128A Site: Field Blank 7/6/2023 9:15 AM Water Client Test Method Results Date Analyzed LL Mercury EPA 1631a <0.500 ng/L 07/29/2023 Comment: Reviewed by, �11, Report #:: 2023.14127 Page 1 or 1 ir Environmental Testing Solutions, Inc, Certificate of Analysis Project name: Water Quality Collection date: Date received: 14-Jun-23 15-Jun-23 PO Box 7565 Asheville, NC 29802 Phone: (828)350-9364 Fax: (828)350-9368 Project number: 230619.500 Sample identification: Burnsville WWTP - Grab Sample number: 239453 Parameter Method Result RL Units Date Analyst Footnotes Analyzed Mercury 1631E <0.500 0,500 µglL 22-r.-23 LYG1 1 Sample identification: Burnsville WWTY Field Blank - Grab Sample number: 239454 Parameter Method Result RL Units Date Analyzed Analyst Footnotes Mercury 1631 E 3.29 0.500 µglL 22-Dm-23 LYG1 1 Footnotes: RL = Reporting Limit. Values are reported down to the Reporting Limit only. 1. Sample analzyed by Get Laboratories, LLC. Sample analyzed per the labels on the vials. Samples were received in vials and not the glassware from Gel Laboratories, LLC Date reviewed: 0 ro.28,Q 7j Data reviewed by: Kelley E. Keenan Signature: L t NC Certification Number: 600 SC Certification Number: 99053 NC Drinking Water Certification Number: 37786 This report should not be reproduced, exept in its entirety, without the written consent of Environmental Testing Solutions, Inc. The results in this report relate only to the samples submitted For analysis. EPA Identification Number NPDES Number Facility Name Outfall Number NC0020290 BurnsvilleWWTP 1 Method Number Estimated Concentration (If Pollutant (Required) CAS number (ifAp licable) Reason Pollutant Believed Present in Discharge Known) No additional pollutants to report. Signed by: Paul Isenhour, ORC 5/9/2023 United States Environmental Protection Agency Form Approved. EPA Washington, D.C. 20460 OMB No. 2040-0057 Water Compliance Inspection Report Approval expires 8-31-98 Section A: National Data System Coding (i.e., PCS) Transaction Code NPDES yr/mo/day Inspection Type Inspector Fac Type 1 IN 1 2 u 3 I NCO020290 111 121 19/12/16 I17 18 LC] I 19 I s I 20L] 21111I I I I I I I II I I I I I I I I I I I I I I I I I I I I I I I II I I I I I r6 Inspection Work Days Facility Self -Monitoring Evaluation Rating B1 QA ---------------------- Reserved ------------------- 67 I 72 I n, I 71 I 74 79 I I I I I I I80 701 I 71 I LL -1 I I LJ Section B: Facility Data Name and Location of Facility Inspected (For Industrial Users discharging to POTW, also include Entry Time/Date Permit Effective Date POTW name and NPDES permit Number) 09:OOAM 19/12/16 17/11/01 Burnsville WWTP 812 Pine Swamp Rd Exit Time/Date Permit Expiration Date Burnsville NC 28714 01:OOPM 19/12/16 22/09/30 Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s) Other Facility Data Jadd Wesley Brewer/ORC/828-898-6277/ Name, Address of Responsible Official/Title/Phone and Fax Number Contacted Shane Dale,PO Box 97 Burnsville NC 287140097/Public Works Director/828-682-2420/ Yes Section C: Areas Evaluated During Inspection (Check only those areas evaluated) Permit 0 Flow Measurement Operations & Maintenar Records/Reports Self -Monitoring Progran 0 Facility Site Review Effluent/Receiving Wate Laboratory Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary) (See attachment summary) Name(s) and Signature(s) of Inspector(s) Agency/Office/Phone and Fax Numbers Date Timothy H Heim DWR/ARO WQ/828-296-4665/ Signature of Management Q A Reviewer Agency/Office/Phone and Fax Numbers Date EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete. Page# NPDES yr/mo/day Inspection Type NCO020290 I11 12I 19/12/16 117 18 i c i (Cont.) Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary) Tim Heim of the Asheville Regional Office performed a routine Compliance Evaluation Inspection of the facility on December 16, 2019. Jadd Brewer (ORC), Dylan Lundy (Burnsville Public Works), Josh Cagle and Chad Prisk were present and assisted with the inspection. The facility appeared well maintained and operated at the time of the inspection, with some planned repairs and maintenance items scheduled. The following items were noted during the inspection: Complete repair of the clarifier drive. Complete repair of the grit removal system. Begin periodic testing of backup generator under load. Plan and execute diffuser rehabilitation project in both basins. Optimize auger timing to increase removal of plastic debris. Consider distributing educational material on flushable wipes to utility customers. Page# Permit: NCO020290 Inspection Date: 12/16/2019 Owner -Facility: Burnsville WWTP Inspection Type: Compliance Evaluation Operations & Maintenance Yes No NA NE Is the plant generally clean with acceptable housekeeping? 0 ❑ ❑ ❑ Does the facility analyze process control parameters, for ex: MLSS, MCRT, Settleable ❑ ❑ ❑ Solids, pH, DO, Sludge Judge, and other that are applicable? Comment: BOD, DO, Temp, pH, MLSS Permit Yes No NA NE (If the present permit expires in 6 months or less). Has the permittee submitted a new ❑ ❑ 0 ❑ application? Is the facility as described in the permit? 0 ❑ ❑ ❑ # Are there any special conditions for the permit? ❑ ■ ❑ ❑ Is access to the plant site restricted to the general public? 0 ❑ ❑ ❑ Is the inspector granted access to all areas for inspection? 0 ❑ ❑ ❑ Comment: Bar Screens Yes No NA NE Type of bar screen a.Manual ❑ b.Mechanical Are the bars adequately screening debris? 0 ❑ ❑ ❑ Is the screen free of excessive debris? 0 ❑ ❑ ❑ Is disposal of screening in compliance? 0 ❑ ❑ ❑ Is the unit in good condition? E ❑ ❑ ❑ Comment: Grit removal system was not being operated at the time of the inspection, ORC stated that repairs are expected to be completed within approximately one week. Aeration Basins Yes No NA NE Mode of operation Ext. Air Type of aeration system Diffused Is the basin free of dead spots? ❑ 0 ❑ ❑ Are surface aerators and mixers operational? ❑ ❑ ■ ❑ Are the diffusers operational? 0 ❑ ❑ ❑ Is the foam the proper color for the treatment process? 0 ❑ ❑ ❑ Does the foam cover less than 25% of the basin's surface? 0 ❑ ❑ ❑ Is the DO level acceptable? ❑ ❑ ❑ Page# 3 Permit: NCO020290 Inspection Date: 12/16/2019 Owner -Facility: Burnsville WWTP Inspection Type: Compliance Evaluation Aeration Basins Yes No NA NE Is the DO level acceptable?(1.0 to 3.0 mg/1) 0 ❑ ❑ ❑ Comment: Some dead spots were observed on the surface while the blowers were operating. It is recommended that rehabilitation of the diffusers on both aeration basins be given priority. ORC states the DO level is maintained around 2 mg/L. Secondary Clarifier Is the clarifier free of black and odorous wastewater? Is the site free of excessive buildup of solids in center well of circular clarifier? Are weirs level? Is the site free of weir blockage? Is the site free of evidence of short-circuiting? Is scum removal adequate? Is the site free of excessive floating sludge? Is the drive unit operational? Is the return rate acceptable (low turbulence)? Is the overflow clear of excessive solids/pin floc? Is the sludge blanket level acceptable? (Approximately'/4 of the sidewall depth) Yes No NA NE • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ Comment: One of the clarifier drives is only partially operating and requires manual assistance. The ORC states that the pear drive required for repair is being shipped and repairs should be completed by the beginning of 2020. ORC states the solids blanket is being maintained at a minimum level (1-2') in order to reduce the force on the drive arm. Disinfection -Liquid Yes No NA NE Is there adequate reserve supply of disinfectant? 0 ❑ ❑ ❑ (Sodium Hypochlorite) Is pump feed system operational? 0 ❑ ❑ ❑ Is bulk storage tank containment area adequate? (free of leaks/open drains) ■ ❑ ❑ ❑ Is the level of chlorine residual acceptable? ❑ ❑ ❑ Is the contact chamber free of growth, or sludge buildup? 0 ❑ ❑ ❑ Is there chlorine residual prior to de -chlorination? ❑ ❑ ❑ Comment: De -chlorination Yes No NA NE Type of system ? Liquid Is the feed ratio proportional to chlorine amount (1 to 1)? ■ ❑ ❑ ❑ Is storage appropriate for cylinders? ❑ ❑ ■ ❑ Page# 4 Permit: NC0020290 Inspection Date: 12/16/2019 Owner -Facility: Burnsville WWTP Inspection Type: Compliance Evaluation De -chlorination # Is de -chlorination substance stored away from chlorine containers? Comment: Are the tablets the proper size and type? Are tablet de -chlorinators operational? Number of tubes in use? Comment: Standby Power Is automatically activated standby power available? Is the generator tested by interrupting primary power source? Is the generator tested under load? Was generator tested & operational during the inspection? Do the generator(s) have adequate capacity to operate the entire wastewater site? Is there an emergency agreement with a fuel vendor for extended run on back-up power? Is the generator fuel level monitored? Yes No NA NE ❑ ❑ ■ ❑ ❑ ❑ ■ ❑ ❑ ❑ ■ ❑ Yes No NA NE ■ ❑ ❑ ❑ ❑ ❑ ❑ ■ ❑ ❑ ❑ ■ ❑ ■ ❑ ❑ ■ ❑ ❑ ❑ ■ ❑ ❑ ❑ ■ ❑ ❑ ❑ Comment: It is recommended that the generator be tested under load several times a year, in addition to the current reaular exercise schedule. Page# 5 United States Environmental Protection Agency Form Approved. EPA Washington, D.C. 20460 OMB No. 2040-0057 Water Compliance Inspection Report Approval expires 8-31-98 Section A: National Data System Coding (i.e., PCS) Transaction Code NPDES yr/mo/day Inspection Type Inspector Fac Type 1 IN 1 2 u 3 I NCO020290 111 121 20/01/31 117 181 „ I 191 S I 201 I 211IIIII 111111III II III III1 I I IIIII IIIIIIIII II r6 Inspection Work Days Facility Self -Monitoring Evaluation Rating B1 QA ---------------------- Reserved ------------------- 67 I 72 I n, I 71 I 74 79 I I I I I I I80 701 I 71 I LL -1 I I LJ Section B: Facility Data Name and Location of Facility Inspected (For Industrial Users discharging to POTW, also include Entry Time/Date Permit Effective Date POTW name and NPDES permit Number) 10:OOAM 20/01/31 17/11/01 Burnsville WWTP 812 Pine Swamp Rd Exit Time/Date Permit Expiration Date Burnsville NC 28714 12:OOPM 20/01/31 22/09/30 Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s) Other Facility Data Jadd Wesley Brewer/ORC/828-898-6277/ Name, Address of Responsible Official/Title/Phone and Fax Number Contacted Shane Dale,PO Box 97 Burnsville NC 287140097/Public Works Director/828-682-2420/ Yes Section C: Areas Evaluated During Inspection (Check only those areas evaluated) Permit 0 Flow Measurement Operations & Maintenar Records/Reports Self -Monitoring Progran 0 Facility Site Review Effluent/Receiving Wate Laboratory Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary) (See attachment summary) Name(s) and Signature(s) of Inspector(s) Agency/Office/Phone and Fax Numbers Date Timothy H Heim DWR/ARO WQ/828-296-4665/ Signature of Management Q A Reviewer Agency/Office/Phone and Fax Numbers Date EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete. Page# NPDES yr/mo/day Inspection Type NCO020290 I11 12I 20/01/31 117 18 IDI (Cont.) Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary) Tim Heim of the Asheville Regional Office was notified on the afternoon of 30 January, 2020 that draw -down of the 300kGPD contact stabilization train for a planned repair of the clarifier revealed non -repairable structural failure of the clarifier. This was verified by Burnsville's consulting engineer: McGill Associates. The integrated nature of this train renders the entire train non -operable and non -repairable. Tim Heim traveled to the facility on 31 January, 2020 and met with Jadd Brewer (ORC), Dylan Lundy (Burnsville Public Works), Chad Prisk (Maintenance) to assess the situation. Structural failure of the clarifier was verified, and mitigation measures were discussed. These included: Removal of the remaining wastewater from the 300kGPD contact stabilization train to the remaining 500kGPD contact stabilization train for treatment and discharge. Pumping the 300kGPD digester to the belt press for removal of solids. Maintaining minimal sludge blanket in the 500kGPD contact stabilization train to reduce the potential for loss of solids during hydraulic overloading. Increase of disinfectant (and proportional de -chlorination) in the effluent by approximately 15%. Use of the non -operating 300kGPD train as an equalization basin during rain events. It is anticipated that the 500kGPD contact stabilization train may be able to meet permit limits during dry weather flows, but rain events will result in hydraulic overload. Concerns about the structural integrity of the plant, and the need for repairs to the 300kGPD train clarifier were cited in DWR inspections in 2015 and 2019. Page# Permit: NCO020290 Inspection Date: 01/31/2020 Owner -Facility: Burnsville WWTP Inspection Type: Technical Assistance Operations & Maintenance Yes No NA NE Is the plant generally clean with acceptable housekeeping? ❑ 0 ❑ ❑ Does the facility analyze process control parameters, for ex: MLSS, MCRT, Settleable ❑ ❑ ❑ Solids, pH, DO, Sludge Judge, and other that are applicable? Comment: The 300kGPD contact stabilization unit clarifier is inoperable and non -repairable. Concerns about the structural integrity of the plant, and the need for repairs to the 300kGPD train clarifier were cited in DWR inspections in 2015 and 2019. Permit Yes No NA NE (If the present permit expires in 6 months or less). Has the permittee submitted a new ■ ❑ ❑ ❑ application? Is the facility as described in the permit? ❑ ■ ❑ ❑ # Are there any special conditions for the permit? 0 ❑ ❑ ❑ Is access to the plant site restricted to the general public? 0 ❑ ❑ ❑ Is the inspector granted access to all areas for inspection? ■ ❑ ❑ ❑ Comment: The 300kGPD contact stabilization unit clarifier is inoperable and non -repairable. The design of this contact stabilization unit means this renders the entire train inoperable and non -repairable. Primary cause is buckling of the interior secondary clarifier walls. Page# 3 United States Environmental Protection Agency Form Approved. EPA Washington, D.C. 20460 OMB No. 2040-0057 Water Compliance Inspection Report Approval expires 8-31-98 Section A: National Data System Coding (i.e., PCS) Transaction Code NPDES yr/mo/day Inspection Type Inspector Fac Type 1 IN 2 u 3 I NCO020290 111 121 23/01/24 I17 18 L�] 19 I s I 201 211IIIII 111111III II III III1 I I IIIII IIIIIIIII II r6 Inspection Work Days Facility Self -Monitoring Evaluation Rating B1 QA ---------------------- Reserved ------------------- 67 I 72 I n, I 73 � I 74 79 I I I I I I I80 70 I I 71 I LL -1 I I LJ Section B: Facility Data Name and Location of Facility Inspected (For Industrial Users discharging to POTW, also include Entry Time/Date Permit Effective Date POTW name and NPDES permit Number) 09:OOAM 23/01/24 17/11/01 Burnsville WWTP 812 Pine Swamp Rd Exit Time/Date Permit Expiration Date Burnsville NC 28714 01:OOPM 23/01/24 22/09/30 Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s) Other Facility Data Rex Robert Woody/ORC/828-898-5011/ Name, Address of Responsible Official/Title/Phone and Fax Number Contacted Shane Dale,PO Box 97 Burnsville NC 287140097/Public Works Director/828-682-2420/ No Section C: Areas Evaluated During Inspection (Check only those areas evaluated) Pretreatment Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary) (See attachment summary) Name(s) and Signature(s) of Inspector(s) Agency/Office/Phone and Fax Numbers Date Timothy H Heim DWR/ARO WQ/828-296-4665/ Signature of Management Q A Reviewer Agency/Office/Phone and Fax Numbers Date EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete. Page# NPDES yr/mo/day Inspection Type NCO020290 I11 12I 23/01/24 117 18 1,1 lul (Cont.) Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary) Tim Heim of the Asheville Regional Office (ARO) performed a Compliance Inspection of the Facility on January 24th, 2023. Paul Isenhour (Pretreatment Coordinator — Water Quality Labs), Rex Woody (ORC), and Robin Surkin (Altec Facility Environmental Manager) were present and assisted with the inspection. The pretreatment program and the single Industrial User (Altec) facility appeared well operated and maintained at the time of the inspection, and in compliance with Permit NC0020290. The following additional items were noted at the time of the inspection: It is recommended that the Pretreatment Coordinator attend the annual NC Pretreatment Consortium on a regular basis for training and continuing education opportunities. https://ncpretreatment.com/ The Pretreatment Coordinator reported a continued good working relationship and communication with the single IU: Altec. Page# Permit: NC0020290 Inspection Date: 01/24/2023 Owner -Facility: Burnsville WWTP Inspection Type: Pretreatment Audit Yes No NA NE Page# Whole Effluent Toxicity Testing and Self Monitoring Summary Burnsville WWTP NCO020290/001 County: Yancey Region: ARO Basin: FRB07 Mar Jun Sep Dec SOC JOC: Ceri7dPF Begin: 11/1/2017 chr lim: 6% NonComp: Single 7Q10: 19.0 PF: 0.8 IWC: 6.0 Freq: Q J F M A M J J A S O N D 2019 - - Pass - - >24(P) Pass - - >24(P) Pass - - >24 Pass 2020 - - >24 Pass - - Pass - - Pass - - Pass 2021 - - Pass - - Pass - - Pass - - Pass 2022 - - Pass - - Pass - - Pass - - Pass 2023 - - Pass - - - - - - - - - Camden County WTP NCO086681/001 County: Camden Region: WARO Basin: PAS50 Jan Apr Jul Oct SOC JOC: Mysd24PF Begin: 3/1/2018 24hr p/f ac monit 90 NonComp: 7Q10: Tidal PF: 0.432 IWC: NA Freq: Q J F M A M l J A S O N D 2019 Pass - - Pass - - Pass - - Pass - - 2020 Pass - - Pass - - Pass - - Pass - - 2021 Pass - - Pass - - Pass - - Pass - - 2022 Pass - - Pass - - Pass - - Pass - - 2023 Pass - - Pass - - - - - - - - Cape Fear Steam Electric Power Plant NC0003433/007 County: Chatham Region: RRO Basin: CPF07 Feb May Aug Nov SOC JOC: Ceri7dPF Begin: 2/1/2019 chr lim: 90% NonComp: Single 7Q10: 0.0 PF: NA IWC: 100 Freq: Q J F M A M J J A S O N D 2019 H H - - H - - H - - H H 2019 - - - - Pass - - Pass - - Pass Pass 2020 - H H H H H - H H H H H 2020 - Pass - H Pass Pass Pass H H Pass Pass Pass 2021 H H H H H H H H H H H H 2021 Pass Pass Pass H H H Pass H H H H H 2022 H H H Pass Pass H Pass H H H H H 2022 H H H H H H H H H H H H 2023 - Pass H - - - - - - - - - 2023 H H H - - - - - - - - - Cape Hatteras Water Assoc. (RO) WTP NCO085707/001 County: Dare Region: WARO Basin: PAS55 Jan Apr Jul Oct SOC JOC: MVsc17dPF Begin: 2/1/2016 Chrmonit6.5%(mysi + NonComp: Single 7Q10: Tidal PF: IWC: 6.5 Freq: Q J F M A M l J A S O N D 2019 Pass - - Pass - - Pass - - - Pass - 2020 Pass - - Pass - - Pass - - Pass - - 2021 Pass - - Pass - - Pass - - Pass - - 2022 Pass - - Pass - - Pass - - >6.5 - - 2023 Pass - - Pass - - - - - - - - Leeend: P= Fathead minnow (Pimohales oromelas). H=No Flow (facility is active). s = Solit test between Certified Labs Page 14 of 115 A B C D E I F I G I H I I I J K L M N O P Pollutants of Concern (POC) Review Form Version:2022.09.28 1 2 1. Facility's General Information Date of (draft) Review 6/2/2023 c. POC review due to: e. Contact Information 3 Date of (final) Review 11/16/2023 Municipal NPDES renewal ❑J Regional Office (RO) Ashevilk 4 5 NPDES Permit Writer (pw) Nick Coco HWA-AT/LTMP Review ❑ RO PT Staff Daniel Boss RO NPDES Staff Daniel Boss 6 Perm ittee-Facility Name Burnsville WWTP New Industries ❑ Facility PT Staff, email Shane Dale, sdale(a-)townofburnsville.org 7 NPDES Permit Number NCO020290 WWTP expansion ❑ f. Receiving Stream 8 NPDES Permit Effective Date 1/1/2024 Stream reclass./adjustment ❑ Outfall Chemical Addendum Submittal 3/9/2023 Outfall relocation/adjustment ❑ Receiving Stream: Cane River QA, cfs: 97 9 Date 10 NPDES Permit Public Notice Date 9/6/2023 7Q10 update ❑ Stream Class C;Tr 7Q10 (S), cfs: 19 11 eDMR data evaluated from: 1/1/2019 to 3/30/2023 Other POC review trigger, explain: Oufall Lat. 35.54.17 Outfall Long. 82.19.59 12 a. WWTP Capacity Summary Outfall II 13 Current Permitted Flow, mgd Designed Flow, 0.8 Receiving Stream: QA, cfs: 9 14 Permitted SIU Flow, mgd 0 d. IU Summary Stream Class 7Q10, cfs: 15 b. PT Docs. Summary # IUs 1 Oufall Lat. Outfall Long. 16 IWS approval date 10/12/2020 # SIUs 1 Is there a PWS intake downstream of the Facility's Outfall(s)? ❑ YES 0 NO 17 L/STMP approval date: 7/19/2006 # CIUs 1 Comments: 18 HWA-AT approval date 3/21/2017 # NSCIUs 0 # IUs w/Local 1 Permits or Other 19 -Types 20 2. Industrial Users' Information. 21 # Industrial User (IU) Name IU Activity IU Non Conventional Pollutans & Toxic Pollutant IUP Effective Date 22 1 Altec Industries, Inc. 40 CFR 433 flow, BOD, TSS, temperature, pH, cadmium, chromium, COD, copper, cyanide, lead, nickel, silver, TP, zinc, TTO 23= 2 3 24 d 25 w 4 Q 5 26 Z 6 27 7 28 s 29 9 30 10 31 11 32 12 33 13 34 14 35 Comment: 40 41 3. Status of Pretreatment Program (check all that apply) 42 Status of Pretreatment Program (check all that apply) 43 ❑ 1) facility has no SIU's, does have Division approved Pretreatment Program that is INACTIVE 44 ❑ 2) facility has no SIU's, does not have Division approved Pretreatment Program 45 ❑ 3) facility has SIUs and DWQ approved Pretreatment Program 46 ❑ 3a) Full Program with LTMP 47 p 3b) Modified Program with STMP 48 ❑ 4) additional conditions regarding Pretreatment attached or listed below 49 p 5) facility's sludge is being land applied or composted 6) facility's sludge is incinerated (add Beryllium and Mercury sampling according to § 503.43) 50 ❑ 51 ❑ 7) facility's sludge is taken to a landfill, if yes which landfill: 52 ❑ 8) other 53 Sludge Disposal Plan: Sludge is currently dewatered and sent to the sludge compost facility. 54 55 Sludge Permit No: WQ0002834 56 Page 1 POC Review Form A B C D E F G H I J K L M N O P 57 4. LTMP/STMP and HWA Review 58 PW: Find L/STMP document, HWA spreadsheet, DMR, previous and new NPDES permit for next section. 59 o- c U aPQL Parameter of Concern (POC) Check List New NPDES POC Previous NPDES POC Required by EPA PT(1) POC due to Sludge (2) POC due to SIU (3) POTW POC (4) % Removal Rate L/STMP Effluent Freq. NPDES Effluent Freq. PQLs review Comment 60 from L/STMP, ug/I Required PQL per NPDES permit Recomm. PQL, ug/I 61 0 Flow ❑ p ❑ 62 0 BOD 0 0 ❑ 63 PI TSS ❑ p p ❑ 64 0 NH3 ❑ 0 El ❑ 65 ❑ Arsenic ❑ ❑ 0 0 ❑ 2.0 66 ❑ Barium ❑ ❑ ❑ ❑ ❑ 67 ❑ Beryllium(5) ❑ ❑ ❑ ❑ ❑ 68 p Cadmium(1) ❑ ❑ p 0 0 ❑ 0.5 69 0 Chromium(l) ❑ ❑ 0 ❑ p ❑ 5.0 70 0 Copper(1) ❑ 0 0 0 p ❑ 2.0 71 p Cyanide ❑ ❑ ❑ p ❑ 72 0 Lead(1) ❑ ❑ p p 0 ❑ 2.0 73 ❑ Mercury(5) ❑ ❑ 0 ❑ ❑ 0.001 74 ❑ Molybdenum ❑ ❑ p ❑ ❑ 10.0 75 0 Nickel(l) ❑ ❑ 0 0 p ❑ 76 0 Selenium ❑ ❑ 0 ❑ ❑ 1.0 77 0 Silver ❑ ❑ ❑ 0 ❑ 1.0 78 Zinc(1) ❑ 0 0 0 ❑ 10.0 79 ❑ Sludge Flow to Disposal p ❑ ❑ 80 ❑ % Solids to Disposal p ❑ ❑ 81 ❑ Oil & Grease 0 ❑ 82 ❑ TN ❑ 0 ❑ ❑ 83 ❑ TP ❑ 0 ❑ ❑ 84 ❑ Chloride ❑ ❑ p ❑ 85 ❑ Cobalt ❑ ❑ 0 ❑ 86 ❑ Sodium ❑ ❑ 0 ❑ 87 ❑ Bis (2-ethylhexyl) phthalate ❑ 0 ❑ ❑ 88 ❑ ❑ ❑ 89 ❑ ❑ ❑ ❑ ❑ 90 ❑ ❑ ❑ ❑ ❑ 91 Footnotes: (1) Always in the LTMP/STMP due to EPA -PT requirement 92 93 (2) Only in LTMP/STMP if listed in sludge permit 94 (3) Only in LTMP/STMP while SIU still discharges to POTW 95 (4) Only in LTMP/STMP when pollutant is of concern to POTW 96 (5) In LTMP/STMP, if sewage sludge is incinerated 97 Please use blue font for the info updated by pw 98 Please use red font for POC that need to be added/modified in USTMP sampling plan 99 Please font for POC that be from L/STMP POC list/sampling use orange and strikethrough may removed plan- 100 IBlue shaded cell (D60:1-181): Parameters usually included under that POC list 101 5. Comments 102 Facility Summary/background information/NPDES-PT regulatory action: POC to be added/modified in L/STMP: 103 ORC's comments on IU/POC: 104 POC submitted through Chemical Addendum or Supplemental Chemical Datasheet: 105 Additional pollutants added to L/STMP due to POTW s concerns: 106 NPDES pw's comments on IU/POC: 107 6. Pretreatment updates in response to NPDES permit renewal 108 NPDES Permit Effective Date 1/1/2024 180 days after effective (date): 7/1/2024 Permit writer, please add list of required/recommended PT updates in NPDES permit cover letter. Page 2 POC Review Form NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION COUNTY OF YANCEY IN THE MATTER OF ) NORTH CAROLINA } SPECIAL ORDER BY CONSENT NPDES PERMIT NCO020290 and } EMC SOC S21-003 COLLECTION SYSTEM PERMIT WQCS00143 ) HELD BY THE TOWN OF BURNSVILLE ) Pursuant to provisions of North Carolina General Statute (G.S.) 143-215.2 and G.S. 143-215.67, this Special Order by Consent is entered into by the Town of Burnsville, hereinafter referred to as the Town, and the North Carolina Environmental Management Commission, an agency of the State of North Carolina created by G.S. 143B-282, and hereinafter referred to as the Commission: 1. 2. The Town and the Commission hereby stipulate the following: (a) The Town holds North Carolina Permit WQCS00143 for operation of an existing wastewater collection system but is unable to consistently comply with Condition 1.2., regarding sanitary sewer overflows (SSOs) as set forth in Collection System Permit WQCS00143, and Bypasses and Flow limits as set forth in NPDES Permit NC0020290. Specifically, frequent and repetitive SSOs and flow permit limit exceedances have occurred in the Town's Collection System and at the Wastewater Treatment Plant itself. Compliance will require preparation of plans and specifications for collection system upgrades including, but not limited to, sewer system rehabilitation between Town Hall and the Wastewater Treatment Plant, and pump station upgrades at the OMC Pump Station. (b) Noncompliance with final conditions constitutes causing and contributing to pollution of the waters of this State, and the Town is within the jurisdiction of the Commission as set forth in G.S. Chapter 143, Article 21. (c) The Town has secured or will secure financing for planning, design, or construction of a new or improved wastewater collection system which, once constructed and operated, will be sufficient to adequately collect wastewater presently being made tributary to the collection system, such that the Town will be able to comply with final permit conditions in Collection System Permit WQCS00143 and NPDES Permit NC0020290. (d) Since this Special Order is by Consent (SOC), neither party will file a petition for a contested case or for judicial review concerning its terms. The Town, desiring to comply with the Permits identified in paragraph 1. (a) above, hereby agrees to do the following: (a) As settlement of all alleged violations of Collection System Permit WQCS00143 and NPDES Permit NCO020290 currently outstanding that total $55,805, prior to entering into this Special Order by Consent, the Town of Burnsville agrees to pay the ,sum of $5,580 and provide documentation that the sum of the penalties reduced by ($50,225) has been spent or currently encumbered specifically for sewer infrastructure projects. There may be other flow violations that have not been assessed but should be coded as "No Action, SOC Pending" in BIMS. A certified check must be made payable to the Department of Environmental Quality (DEQ) and forwarded to the Director of the Division of Water Resources at 1617 Mail Service Center, Raleigh, NC 27699-1617 by no later than fifteen days following the date on which this Order is approved and executed by the Commission and received by the Town of Burnsville. Town of Burnsville — Burnsville Collection System and WWTP EMC SOC S21-043 n. 2 (b) Provide the Division of Water Resources (Division) staff of the NC DEO Asheville Regional Office (ARO), located at 2090 U.S. 70 Highway, Swannanoa, NC 28778-8211, with a list of all additions of flow (see paragraph 6) under the Town's SOC, and update this list each time flow is added to the collection system. (c) Undertake or continue to perform following activities in accordance with the indicated time schedule: I. Operation and Maintenance recommendations: a. Continue to respond to all SSOs and Bypasses as per conditions found in Collections System Permit WQCS00143 and NPDES Permit NC0020290. II. Schedules (engineering, construction & compliance): a. Project 1 - Burnsville WWTP Improvements: i. Rehabilitation of 0.3 MGD treatment train at the Burnsville WWTP- repair of tank, replacement of all mechanical components, replacement of diffusers; new steel walkways. ii. Operate in compliance with NPDES Permit NCO020290 for a period of 6 months after completing rehabilitation. iii. Funding Source - Rates, $520,000.00 iv. COMPLETED November 2020, Compliant Operation Milestone: April 30, 2021 b. Project 2 - Meadow Road Sewer Rehabilitation: i. I&I Reduction: Replacement of 4,000 linear feet of existing four (4) inch and six (6) inch sewer line with 8-inch ductile iron sewer line, 20 manholes and 40 service taps on Indian Trail and Meadow Road, Burnsville NC ii. Demonstrate significant reduction in I&I in the collection system consistent with this project for a period of 6 months after completion. iii. Funding Source - CDBG-I $1.1 million iv. COMPLETED: October 2020, Operation Milestone: March 31, 2021 c. Project 3a — OMC Pump Station Rehabilitation i. Replacement of 1000 linear feet of 8-inch C-900 PVC Force Main to OMC Pump Station and Rehabilitation of the OMC Pump Station to include new pumps and generator. ii. Operate in compliance with Collections System Permit WQCS00143 for a period of 6 months after completing rehabilitation. iii. Funding Source - North Carolina State Revolving Fund (SRF) Loan $1.14 million iv. COMPLETED November 2020 (FORCE MAIN PROJECT), Compliant Operation Milestone: April 30, 2021 d. Project 3b — OMC Pump Station Flow Reduction i. Addition of Splitter Box at OMC Pump Station and Connection to East Yancey Sewer Treatment Plant Collection System ii. Funding Source — Included with SRF loan of $1.14 million iii. Construction currently being initiated, expected completion date March, 2022 e. Project 4 — Baker's Creek Pump Station Rehabilitation Town of Burnsville — Burnsville Collection System and WWTP EMC SOC S21-003 p. 3 i. Rehabilitation of Baker's Creek Pump Station to include new pumps. Generator will be replaced/upgraded if necessary. ii. Operate in compliance with Collection System Permit WQCS00143 for a period of 6 months after completing rehabilitation. iii. Funding Source-ARPA funds, or loans/grants from State of North Carolina Division of Water Infrastructure. iv. Project to be completed by December 31, 2024. f. Project 5: West Main ,Sewer Interceptor Improvements i. I&I Reduction Sewer System Rehabilitation between Town Hall and the Wastewater Treatment Plant West Main Sewer Interceptor Project ii. Funding Source - CDBG-I project • Projected Schedule Funding Approval: Submit Engineering Report: Engineering Report Approval: Bid and Design Package Submittal: Bid and Design Package Approval: Complete Construction: April, 2021 October, 2021 March, 2022 August, 2022 December, 2022 May, 2024 g. Project 6: GIS Stormwater mapping project i. I&I Reduction efforts aimed to locate all stormwater infrastructure. It is expected that this effort will identify and any possible cross -connections into the sanitary sewer system and/or identify areas of the storm sewer system that impact the sanitary sewer system. ii. Funding Source -Town rates & 2050)Water Quality Management Planning Grant iii. COMPLETED: November 2021, Operation Milestone: April 29, 2022 h. Project 7: Burnsville WWTP Rehabilitation Funding and Design i. Overhaul and rehabilitation of the 0.5 MGD Burnsville Waste Water Treatment Plant. Work shall include replacing air diffusers, rehabilitation of the plant headworks, replacing the disinfection treatment from gaseous chlorine to liquid chlorine, repair/replacement of the blower system, and construction of a new lab building. • Projected Schedule Secure Funding Source — May 2024 Initiate Engineering Services Contact — July 2024 Town of Burnsville — Burnsville Collection System and WWTP EMC SOC S21-003 p. 4 If insufficient bidders prevent the Town from lawfully awarding a contract or legal action by prospective bidders prevents the Town from lawfully awarding contracts within the time frame stated in paragraph 2 (c) (II) above, the Town shall notify the ARO and this Order shall be amended to accommodate any such delays that are beyond the control of the Town. (d) The Town shall comply with all terms and conditions of Collection System Permit WQCS00143 and NPDES Permit NC0020290. The Permittee may also be required to monitor for other parameters as deemed necessary by the Director in future permits or administrative letters. (e) No later than thirty (30) calendar days after any date identified for accomplishment of any activity listed in 2(c) above, the Town shall submit to the ARO a written notice of compliance or noncompliance therewith. In the case of noncompliance, the notice shall include a statement of the reasons(s) for noncompliance, remedial actions(s) taken, and a statement identifying the extent to which subsequent dates or times for accomplishment of listed activities may be affected. (f) No later than fifteen (15) calendar days after the end of the calendar quarter stipulated in the schedule below, quarterly reports will be due to the ARO Regional Supervisor. Quarterl Report Report Due Date January — March April 15 April — June July 15 Jul — September October 15 October - December January 15 3. The Town agrees that unless excused under paragraph 4, the Town will pay the Director of DWR, by check payable to the NC DEQ, stipulated penalties according to the following schedule for failure to meet the deadlines set out in paragraphs 2(c) and 2(f). Violation Descri Lion Stipulated Penalty Failure to meet any milestone date identified in $250/day ara aph 2(c) above. Failure to submit any report required by $250/day paragraph 2(f) above. Any reportable spill (SSO or Bypass) $250/event 4. The Town and the Commission agree stipulated penalties are not due if the Town satisfies the Division of Water Resources that noncompliance was caused by extraordinary circumstances: (a) An act of God; (b) An act of war; (c) An intentional act or omission of a third party, but this defense shall not be available if the act or omission is that of an employee or agent of the defendant or if the act or omission occurs in connection with a contractual relationship with the Town; (d) An extraordinary event beyond the Town's control. Contractor delays or failure to obtain funding will not be considered as events beyond the Town's control; or (e) Any combination of the above causes. Town of Burnsville — Burnsville Collection System and WWTP EMC SOC S21-003 p. S Failure within thirty (30) days of receipt of written demand to pay the penalties or challenge them by a contested case petition pursuant to G.S. 150B-23, will be grounds for a collections action, which the Attorney General is hereby authorized to initiate. The only issue in such an action will be whether the thirty (30) days has elapsed. 5. In recognition of the rehabilitation work already completed, the Division is provisionally waiving the existing sewer tap moratorium. So long as continued progress is made regarding reduction of I&I, the tap moratorium will remain waived. The Division reserves the right to reinstate the moratorium if conditions at the facility deteriorate_ 6. The nature of the additional flows is such that the waste characteristics do not exceed those generally associated with domestic waste or are pretreated to domestic strengths. Waste of greater than normal domestic strength may be accepted if the parameter(s) that exceed normal domestic strength wastewater are not those for which interim limitations have been developed and it can be demonstrated to the satisfaction of the Director the additional waste will not adversely affect the treatment efficiency of the treatment system for any modified parameter or result in the violation of any other permit limitation. All new and proposed industrial waste tributary to the system must be controlled using all needed mechanisms including but not limited to adoption and implementation of industrial waste control and pretreatment ordinances. No wastewater can be accepted which will add toxic pollutants in quantities not generally associated with domestic wastewater characteristics, unless the acceptance of the additional wastewater can be supported through appropriate analyses acceptable to the Director. 7. This SOC and any terms and conditions contained herein, hereby supersede any and all previous Special Orders, Enforcement Compliance Schedule Letters, terms and conditions contained therein issued in connection with Collection System Permit WQCS00143 and NPDES Permit NC0020290. In the event of a Permit modification or renewal, requirements contained therein shall supersede those contained in this SOC, except as modified and contained herein. S. Any violation of the terms of this SOC, including paragraphs 2 (c) and 2 (e) above may, upon the discretion of the Director, terminate paragraph five (5) of this Order. 9. Noncompliance with the terms of this SOC are subject to enforcement action in addition to the above stipulations, including injunctive relief pursuant to G.S. 143-215.6(C). 10. The Town, upon signature of this SOC, will be expected to comply with all schedule dates, terms, and conditions of this document. 11. This SOC shall expire 90 days after completion of the work listed above. For the Town of Burnsville: Tom- (a-Gbut Q-r Print Name and Title of gning Official ignature of Signing Official Town of Burnsville — Burnsville Collection System and WWTP EMC SOC S21-003 p. 6 �- 6 - '201 Date For the North Carolina Environmental Management Commission: S. Daniel Smith, P.G. Director, Division of Water Resources Date DocuSign Envelope ID: 27C273BA-EO71-4C35-A61 E-CE1 2B2B79304 ROY COOPER Governor MICHAEL S. REGAN Secretory S. DANIEL SMITH Director NORTH CAROL.INA Environmental Quality February 11, 2020 CERTIFIED MAIL 7019 0700 0000 8867 5244 RETURN RECEIPT REQUESTED Mayor Theresa Coletta Town of Burnsville P.O. Box 97 Burnsville, NC 28714-0097 Subject: NPDES Statutory Moratorium NPDES Permit NCO020290 Town of Burnsville WWTP Class WW-3 Yancey County Dear Mayor Coletta: The Division of Water Resources (hereby known as the Division) has determined that the Town of Burnsville Wastewater Treatment Plant (WWTP) is unable to meet permit requirements for proper operation and maintenance and is therefore unable to adequately treat the volume of wastewater the facility is receiving. This determination is based upon the findings from an on -site inspection of the WWTP conducted on January 31. During the inspection January 31, 2020, Division personnel observed that the 300,000 gallon -per -day contact stabilization unit was completely inoperable due to structural damage to the clarifier. It is understood from subsequent conversations with Town of Burnsville staff and the town's consulting engineer, McGill Associates, that the unit cannot be repaired. This unit includes essential treatment components for compliance with the permit effluent limits and permit operations and maintenance requirements. Without this treatment unit, the facility will be continually noncompliant with permit NC0020290. Concerns about the need for repairs to the clarifier were noted in 2015 and 2019 DWR inspections. D EQ0 Nrth Carolina Department of Environmental Quality I Division of Water Resources Asheville Regional Office 1 2090 U.S. Highway 70 1 Swannanoa, North Carolina 28778 NL'R�H CAH4JLINA D,Rr1 a 10 Eou9ron 41 mwilry 828.296.4500 DocuSign Envelope ID: 27C273BA-E071-4C35-A61E-CE12B2B79304 2 1 P a g e Town of Burnsville WWTP Sewer Tap Moratorium February 11, 2020 North Carolina General Statute §145-215.67(a) states, in part, that "no person subject to the provision of NCGS 143-215.1, 143-215.108, or 143-214.109 shall cause or allow the discharge of any wastes to a waste -disposal system in excess of the capacity of the disposal system or of any wastes which the waste -disposal system cannot adequately treat." Should these terms be violated, NCGS 143-215.67 states a moratorium can be imposed "on the addition of waste to a treatment works" if the treatment works is not capable of adequately treating additional waste. Based upon the facts and determination noted above, the Town of Burnsville WWTP is hereby placed on a moratorium prohibiting the introduction of aU additional waste to the collection system tributary to the WWTP. Please note that the subject moratorium has restrictions beyond those cited in the October 21, 2019 moratorium. This moratorium prohibits: 1. the issuance of permits for new sewer lines to be connected to the WWTP; 2. any new tap-ons to the existing collection system; and, 3. the introduction of significant volumes of new wastewater flow via existing taps (subject to the provisions of the statute). This moratorium shall become effective 45 days from your receipt of this letter. This moratorium will remain in effect until the Town of Burnsville WWTP is consistently compliant with permit NC0020290 and has obtained written notification from the Division lifting this moratorium. As required by NCGS 143-215.67(d), the Town of Burnsville. (the permittee) shall give public notice that a moratorium will be placed on the discharge of additional waste to the Town of Burnsville WWTP within 15 days of the receipt of this letter. The permittee shall give public notice of the moratorium by publication of the notice one time in a newspaper having general circulation in Yancey County. The notice shall be as provided in the attached, sample public notice. The permittee shall provide an affidavit of publication and a copy of the public notice to the Division within 30 days of publication of the public notice. Placement of the public notice in no way absolves the permittee from past or present violations of North Carolina General Statutes. Failure to place the public notice may subject the permittee to additional enforcement action by the Division. DocuSign Envelope ID: 27C273BA-E071-4C35-A61E-CE12B2B79304 3 1 P a g e Town of Burnsville WWTP Sewer Tap Moratorium February 11, 2020 Correspondence pertaining to this moratorium should be sent to the Division at the address listed at the bottom of the first page of this letter. If you have any questions about this letter, please contact me at 828-296-4680 or via email at landon.davidson@ncdenr.gov. Sincerely, DocuSigned by: r--��) 7E617A38285848C... Landon Davidson, Regional Supervisor Water Quality Regional Operations Section Division of Water Resources Ec: North Carolina Public Utility Commission Laserfiche Josh Cagle, ORC - Burnsville WWTP Dillon Lundy - Burnsville Public Works Director Jonathan England - Yancey County Building Inspector Amy Herron - Yancey County Health Department G:\WR\WQ\Yancey\Wastewater\Municipal\Burnsville WWTP 20290\1an 2020 300 Plant Outage\20200211_NC00202090_SewerTapMoratorium.docx Russell Fox Mayor Heather Hockaday Town Manager/Attorney Chad Fox Town Clerk Town of �Burnoillp Town of Burnsville Public Works Department SOC Quarterly Report For January 2023-March, 2023 Mr. Landon Davidson, P. G. Regional Office Supervisor Surface Water Protection Section North Carolina Division of Water Quality 2090 U.S. Highway 70 Swannanoa, NC 28778 Councilors: Judy Buchanan Denise Collier Randy 011is Bill Wheeler 21013 APH 12 2023 Water Quality Regional Operations Asheville Regional Office SUBJECT: Environmental Management Commission Settlement Agreement Quarterly Status Report Town of Burnsville Collection System NPDES PERMIT NCO020290 and WQCS00143 Dear Mr. Davidson: This Quarterly Report documents the Town of Burnsville Sewer Collection System compliance activities during January, February and March 2023. The Town has experienced no SSO's and the Pine Swamp treatment facility has operated within permitted limits during the period of this quarterly report. • Project 3b-OMC Pump Station Flow Reduction The project to install an additional pump at the OMC Pump Station to divert between 50-70,000 GPD of flow to the EY Sewer District's treatment facility located East of Burnsville has been completed. Yancey County has committed to obligating a portion of their 2021 State Budget Infrastructure funding for the construction of force main to connect. The Town previously secured engineering services for the design and bids for the force main connection to the EYWSD collection system. We are awaiting design information from the engineering firm McGill Associates. The collection system is has just recently been completed. The County has also committed to obligate funding from their above mentioned earmark for camera inspection, cleaning and inspection of portions of the EY Sewer District's collection system and repairs and upgrades to the EY- WWTP as were outlined in document sent to the County Manager dated April 20, 2022 from the ARO. The total amount allocated for these inspections and repairs will be $1.5 million. We are awaiting budget documents from the engineering firm for the county to formally process these requests through the Division. P.O. Box 97 • Burnsville, North Carolina 28714 • Phone (828) 682-2420 0 FAX (828) 682-7757 9 www.townofburnsville.org • Project 4-Baker's Creek Pump Station Rehabilitation The Engineering Report was submitted to the Division for review within the proper timeline. The engineers have responded to comments and we are awaiting approval. • Project 5-West Main Sewer Interceptor Improvements The Design package was submitted to the Division's engineer on CDBG-1 projects in October of 2022 and the same was returned the engineering firm in late January 2023 with comments and a request for additional information. The Town was required to hold an additional public hearing to clarify the project area covered some areas of sewer easement that left the public road right of way and crossed private property easements and amend the narrative. The public hearing was held at the Town Council's regular March 2, 2023 business meeting and the minutes will be approved and submitted with the rest of the documentation after the April 6, 2023 meeting. Due to the approval delay an extension was requested and approved until May 10, 2023 for Design and Bid package approval. • Project 7- Burnsville WWTP Improvements: Funding for this project has now been increased to $8,850,000.00 after Yancey County agreed to provide, from their State earmark, the additional $2.8 million in funding when the Town's application for more grant funding from DWI was unsuccessful. The County has contracted with WithersRavenel as the Engineering Firm. With additional funding the new proposed scope of rehabilitation would include the addition of a new 0.5 treatment unit to be installed instead of a 0.3 unit. The plan includes rehabilitation of the existing 0.5 treatment unit for an EQ basin and possibly pretreatment processing as well. The Town is planning to apply to the CDBG-1 program for another $1 million in funding for this project. The engineers and working on a new budget for that grant request. The additional funding will allow for more updates and modernization at the treatment facility. Additional Projects: • The Town in has secured grant funding through Yancey County from Dogwood Health Trust for the GIS mapping of the sewer collection system. The sewer mapping project was completed in late November 2022. Additionally the same funding source will be used to complete an update of the 2016 AMP/CIP along with an infrastructure master plan study to evaluate current conditions and capacity of all Town infrastructure and future needs of both the Town and County. McGill and Associates is finishing updating the Town's AMP/CIP plan and has begun work on the updating the SDF calculator. At a joint meeting in early March McGill updated the Town and County on their progress. We do not yet have a final completion date, but work is continuing to move forward and Town staff approved final CIP project draft last week. • The Engineering Report for the East Main Sewer Interceptor Improvements was submitted to the Division and approval letters were received on March 20, 2023. The engineers are moving forward with the design and bid package for this project within the Division's timeline. The Town Council is committed to improving and planning for future maintenance of the collection and treatment systems. The Town looks forward to the forward progress of all these projects as we move through the design phase and onto bidding and construction in accordance with the Division's timelines. Please accept this information on behalf of the Town of Burnsville Sewer System. if further information is needed, please do not hesitate to contact me at 828-682-2824 or by email at hhockaday@townofburnsville.org Sincerely, Town of Burnsville V Heather Hockaday Town Manager cc: Tim Heim, ARO Environmental Specialist Shane Dale, Public Works Director, Town of Burnsville Russell Fox Mayor ToWn of 36urnf�bille Heather Hockaday Town Manager/Attorney �a of BURAr. Chad Fox �° Town Clerk i CARO���P Town of Burnsville Public Works Department SOC Quarterly Report for April 2023-June, 2023 July 11, 2023 Mr. Landon Davidson, P. G. Regional Office Supervisor Surface Water Protection Section North Carolina Division of Water Quality 2090 U.S. Highway 70 Swannanoa, NC 28778 Councilors: Judy Buchanan Denise Collier Randy 011is Bill Wheeler JUL 17 2023 " Water Quality Regional OperationF Asheville Regional Office: SUBJECT: Environmental Management Commission Settlement Agreement Quarterly Status Report Town of Burnsville Collection System NPDES PERMIT NCO020290 and WQCS00143 Dear Mr. Davidson: This Quarterly Report documents the Town of Burnsville Sewer Collection System compliance activities during April, May, and June 2023. The Town has experienced no SSO's and the Pine Swamp treatment facility has operated within permitted limits during the period of this quarterly report. Project 3b-OMC Pump Station Flow Reduction The project to install an additional pump at the OMC Pump Station to divert between 50-70,000 GPD of flow to the EY Sewer District's treatment facility located East of Burnsville has been completed. Yancey County has committed to obligating a portion of their 2021 State Budget Infrastructure funding for the construction of force main to connect. The Town previously secured engineering services for the design and bids for the force main connection to the EYWSD collection system. We are awaiting design information from the engineering firm McGill Associates. The collection system is has just recently been completed. The County has also committed to obligate funding from their above mentioned earmark for camera inspection, cleaning and inspection of portions of the EY Sewer District's collection system and repairs and upgrades to the EY-WWTP as were outlined in document sent to the County Manager dated April 20, 2022 from the ARO. The total amount allocated for these inspections and repairs will be $1.5 million. The Department has issued a LOIF to the County and a milestone schedule for this project (see attached LOIF). Project 4-Baker's Creek Pump Station Rehabilitation The Engineering Report was approved and milestone timelines established for this project. (See attached approval letter) Project 5-West Main Sewer Interceptor Improvements P.O. Box 97 • Burnsville, North Carolina 28714 9 Phone (828) 682-2420 9 FAX (828) 682-7757 9 www.townofburnsville.org The design bid package for this project was approved by the Division and advertisement for bids went out last week. (see attached advertisement) Project 7- Burnsville WWTP Improvements: Funding for this project has now been increased to $8,850,000.00 after Yancey County agreed to provide, from their State earmark, the additional $2.8 million in funding when the Town's application for more grant funding from DWI was unsuccessful. The County has contracted with WithersRavenel as the Engineering Firm. The Division has issued a LOIF for this project with milestone timelines. (see attached LIOF) Additional Projects: The Town in has secured grant funding through Yancey County from Dogwood Health Trust for the GIS mapping of the sewer collection system. The sewer mapping project was completed in late November 2022. The water line mapping project is more than 50% complete at this time. Additionally the same funding source will be used to complete an update of the 2016 AMP/CIP along with an infrastructure master plan study to evaluate current conditions and capacity of all Town infrastructure and future needs of both the Town and County. McGill and Associates is continuing to work on finishing updating the Town's AMP/CIP plan and has begun work on the updating the SDF calculator. We are awaiting word from the engineers on a completion date. The Engineering Report for the East Main Sewer Interceptor Improvements was submitted to the Division and approval letters were received on March 20, 2023. The engineers are moving forward with the design and bid package for this project within the Division's timeline. The Town Council is committed to improving and planning for future maintenance of the collection and treatment systems. The Town looks forward to the forward progress of all these projects as we move through the design phase and onto bidding and construction in accordance with the Division's timelines. Please accept this information on behalf of the Town of Burnsville Sewer System. If further information is needed, please do not hesitate to contact me at 828-682-2824 or by email at hhockadav@townofburnsville.org Sincerely, Town of Burnsville Heather Hockaday Town Manager cc: Shane Dale, Public Works Director, Town of Burnsville ROY COOPER Governor ELIZABETH S. BISER secretary SHADI ESKAF Director Ms. Lynn Austin, Manager Yancey County 110 Town Square / Room 11 Burnsville, North Carolina 28714 Dear Ms. Austin: NORTH CAROLINA Environmental Otallty June 29, 2023 Subject: Letter of Intent to Fund American Rescue Plan Act — Earmark South Toe. River WWTP & East Yancey Wastewater Collection System improvements Project DWI Project No.: SRP-W-ARP-0337 The Division of Water Infrastructure (Division) has reviewed your Request for Funding and determined your project is eligible to receive American Rescue Plan Act (ARPA) funding from the State Fiscal Recovery - Fund (SFRF), established in Session Law (S.L.) 2021-180. Projects funded from the SFRF must meet applicable federal law and guidance for the ARPA funds. The ARPA project grant will be one -hundred percent (100%) of eligible project costs, up to a maximum of $2,518,950. The first milestone is the submittal of bid-and-desip_npackage by 02-January-2024. Please note that this intent to fund is contingent on meeting all the following milestones: Milestone Date Apply for all Necessary Permits* ASAP Bid -and -Design Package Submittal obtain allpermits) 02-Jan-2024 Package Approval 01-Ma -2024 —Bid-and-Design Advertise Project, Receive Bids, Submit Bid Information, and Receive Authority to Award 03-Se -2024 Execute Construction Contracts 01-Oct-2024 Receive Last Reimbursement - Statutory 31-Dec-2026 'An engineering alternatives analysis (EAA) maybe required on certain projects. See: b=s://deg.nc.gov/about/divisions/water-resources/water-quality-perTnittin"n des-wastewater/permitting-process Failure to meet any milestone may result in the forfeiture of funding for the proposed project. All costs incurred prior to March 3, 2021, are not eligible for ARPA funds, and all ARPA funds mpst be expended prior to December 31, 2026: The Division will make no reimbursement of ARPA funds after December 31, 2026. Please also note that upon a detailed review of the project during the funding process, it may be determined that portions of your project are not eligible for funding. Upon detailed review of the project during the funding process, it may be determined that portions of your project are not eligible for funding and the total funding amount may be reduced. Additionally, changes in theme scope or priority points awarded — based on additional information that becomes apparent during project review — may also result in changes to the total funding amount and loan terms. K Q_�_nA North Carolina Department of Environmental Quality I Division of Water Infrastructure 512 N. Salisbury Street 11633 Mail Service Center I Raleigh, North Carolina 27699-1633 919.707.9160 Ms. Austin Yancey County 29-Jun-23 Page 2 of 2 Environmental Review Requirements The State Environmental Policy Act exempts projects funded by the State Reserve (such as this project) from state -mandated environmental review. Federal requirements may still apply. [North Carolina General Statute (N.C.G.S.) 113A-12(2)h.] US Treasury Requirements Projects with an expected total cost of ten million dollars ($10,000,000) or more must meet US Treasury requirements for prevailing -wage rates, project labor agreements, and related requirements. Recipients can either certij'y meeting the requirements or provide plans and reports as the SLFRF Compliance and Reporting Guidance (treasurygov) specifies. Permitting Assistance We are offering a free, permit -assistance service to address any questions you may have about potential permitting requirements, pitfalls, fees, and timelines. If interested, please complete our online form at hgps:Hdeg.nc.goy/pertnits-rules/permit-assistance-and-guidance/permit-assistance-request-form and a regional environmental coordinator will contact you. When applying for a permit, attach a copy of this letter to your permit application. We find it is helpful to identify ARPA projects not only to get your permit to you faster but also to assist with meeting the federal expenditure deadline of December 31, 2026. If you have any questions concerning this matter, or require general assistance regarding your project's Division -awarded funding, please contact your project's assigned project manager, Julia Byrd either by telephone at 828.772.1475 or by e-mail at julia.byrd@deq.nc.gov. Sincerely, 9&9- A�f� Jon Risgaard, Chief State Revolving Fund Section cc: Mike Dowd, P.E., McGill Associates, P.A., Asheville NC (e-mail: mike.dowd@mcgillassociates.com) Cory Osborne, High Country Council of Governments, Boone NC (e-mail: cosbome@hccog.org) Antonio V. Evans, P.E. (DWI, via e-mail) Julia Byrd (DWI, via e-mail) Mark Hubbard, P.E. (DWI, via e-mail) ARPA Project File (COM — LOIF) ADVERTISEMENT FOR BIDS Pursuant to NC G.S. 143-129, sealed Bids for the construction of the Burnsville CDBG-I Main Street Sewer Interceptor Project will be received by the Town of Burnsville, at 6 South Main Street, Burnsville, NC 28714 until 2:00 PM local time on Thursday, August 10, 2023, at which time the Bids received will be publicly opened and read. Bids may be submitted by mail or courier. Bids received after this time will not be accepted. Rehabilitate and replace approximately 11,477 linear feet of old and deteriorated 8" and 10" diameter vitrified clay pipe (VCP) and ductile iron pipe (DIP) along the main sewer interceptor (west) that collects wastewater from the entire town. Nearly all pipe would be repaired via trenchless rehabilitation compared to traditional dig and replace. Trenchless rehabilitation will be done by CIPP. Replace approximately 84 sanitary sewer service taps, perform approximately 4 point repair service taps, rehabilitate approximately 67 manholes, and replace approximately 3 manholes. A pre -bid conference will be held at 2:00 PM local time on Thursday, July 27, 2023 at 6 South Main Street, Burnsville, NC 28714. Interested parties are encouraged to attend this conference to review the plans, ask for additional information or clarification, and to visit the project site. Attendance at the pre - bid conference is highly encouraged, but is not mandatory. Complete digital bidding documents are available at http://withersravenel.com/bid/ or https://www.guestcdn.com/. You may download the digital documents for $25.00 by inputting Quest project # 8581811 on the website's search page. Please contact QuestCDN.com at (952) 233-1632 or info@questcdn.com for assistance in membership registration, downloading, and working with this digital project information. All bids must be accompanied by a certified or cashier's check or bid bond in the amount of 5% of the total amount bid made payable to Town of Burnsville. No bid may be withdrawn for a period of 60 consecutive calendar days after bid opening except as provided in Instructions to Bidders. Bidders must be licensed contractors in the state(s) in which the work is to be completed. All questions related to this bid shall be submitted in writing to dbolden@withersravenel.com prior to 10:00 AM local time on August 3, 2023, to receive consideration. Questions received after that time will not be answered or accepted. A Final Addendum will be provided prior to the Bid Date. The Town of Burnsville is an Equal Opportunity Employer. Small businesses, minority owned businesses, women owned businesses, and businesses owned by low and moderate -income persons are encouraged to bid. The Owner reserves the right to waive informalities and to reject any or all bids. All Bidders are required to adhere to the rules set forth in Article 1 of Chapter 87 of the NC General Statutes. This information is available in Spanish or any other language upon request. Please contact Heather Hockaday at (828) 682-2420 or at 2 Town Square, Burnsville, NC 28714 for accommodations for this request. EJCDC® C-111, Suggested Advertisement for Bids for Construction Contracts. Copyright © 2013 National Society of Professional Engineers, American Council of Engineering Companies, and American Society of Civil Engineers. All rights reserved. Page 1 Esta informacion esta disponible en espanol o en cualquier otro idioma bajo peticion. Por favor, pongase en contacto con Heather Hockaday al (828) 682-2420 o en 2 Town Square, Burnsville, NC 28714 de alojamiento para esta solicitud. EQUAL HOUSING OPPORTUNITY END OF ADVERTISEMENT FOR BIDS EJCDC® C-111, Suggested Advertisement for Bids for Construction Contracts. Copyright © 2013 National Society of Professional Engineers, American Council of Engineering Companies, and American Society of Civil Engineers. All rights reserved. Page 2 ROY COOPER Governor ELIZABETH S. BISER Secretary SHADI ESKAF Director Ms. Heather Hockaday, Town Manager Town of Burnsville PO Box 97 Burnsville, NC 28714 Dear Ms. Hockaday: NORTH CAROLINA Environmental Quality April 17, 2023 Subject: Engineering Report Funding Approval Town of Burnsville Bakers Creek Pump Station Improvements Project No. SRP-W-ARP-0140 American Rescue Plan The Division of Water Infrastructure (Division) has completed its review of the engineering report for the subject project. Based upon the review, the Division has determined that the referenced project is eligible for funding as follows: Eligible Rehabilitation of the Bakers Creek Pump Station to include replacement of two (2) existing pumps (one 656 GPM and one 499 GPM) with two (2) new 600 GPM pumps; electrical, yard piping, and associated appurtenances; and rehabilitation/replacement of backup generator. Non -Eligible Paving of roadways in excess of the excavated area. Spare parts, service contracts, maintenance contracts, and extended warranties. Based upon detailed review of the bid documents, the Division may determine that portions of the project are not eligible for funding and the total funding amount may be reduced. Please note that funding is contingent on meeting the schedule provided in your Letter of Intent to Fund, or approved Funding Deadline Extension, as tabulated below: Milestone Date Bid and Design Package Submittal November 1, 2023 Bid and Design Package Approval March 1, 2024 Advertise Project, Receive Bids, Submit Bid Information, and Receive Authority to Award July 1, 2024 Execute Construction Contracts August 1, 2024 Receive last reimbursement - Statutory December 31, 2026 NORT1, c rnt� D E Q > oa.Anen a EAWEnn�Inbl a,ar� /� North Carolina Department of Environmental Quality I DMsion of Water Infrastructure 512 N. Salisbury Street 1 1633 Mail Service Center I Raleigh, North Carolina 27699-1633 919.707.9160 Heather Hockaday, Town Manager April 17, 2023 Page 2 of 2 Note that the Division will make no reimbursements of ARP funds after December 31, 2026. If you have any questions, please contact Julia Byrd by e-mail at julia.byrd@ncdenr.gov or by telephone at 828.772.1475. Sincerely, Ken Pohlig, PE, Supervisor Wastewater and Stormwater Projects Unit cc: J. Meliski, PE, McGill Associates, Asheville Ken Pohlig, PE. DWI (via email) Mark Hubbard, PE, DWI (via email) GMU Project Manager, DWI (via email) Julia Byrd, DWI (via e-mail) ARP File (EREID/ERAL) ROY COOPER Governor ELIZABETH S. BISER Secretary SHADIESKAF Director Ms. Lynn Austin, Manager Yancey County 110 Town Square / Room 11 Burnsville, North Carolina 28714 Dear Ms. Austin: NORTH CAROLINA Environmental Quality June 29, 2023 Subject: Letter of Intent to Fund — Amended American Rescue Plan Act — Earmark Pine Swamp WWTP Project DWI Project No.: SRP-W-ARP-0173 The Division of Water Infrastructure (Division) has reviewed your amended Requests for Funding (both amended request forms provided for this specific project) and determined your project is eligible to receive additional American Rescue Plan Act (ARPA) funding from the State Fiscal Recovery Fund (SFRF), established in Session Law (S.L.) 2021-180 and S.L. 2022-74. Projects funded from the SFRF must meet applicable federal law and guidance for the ARPA funds. The amended, ARPA project grant will be one -hundred percent (100%) of eligible project costs, for up to an amended, maximum total amount of $8 850 000 (total increase of $2 800 000), which shall be structured as follows: • One subtotal of $5,800,000 (increased from original LOIF), coming from the County's S.L. 2021-180 appropriation; and • An additional subtotal of $3,050,000 (no increase from original LOIF), coming from the County's S.L. 2022-74 appropriation. The first milestone is the submittal of design -and -bid package by February 29 2024 Please note that this intent to fund is contingent on meeting all the following milestones: Milestone Date Apply for all NecessaryPermits' ASAP Design -and -Bid Package Submittal obtain all pen -nits) 29-Feb-2024*` Design -and -Bid Package Approval 01-Jul-2024" Advertise Project, Receive Bids, Submit Bid Information, and Receive Authority to Award 01-Au -2024" Execute Construction Contracts 01-Nov-2024`* Receive Last Reimbursement - Statutory31-Dec-2026 "' —",` `" • ,s .... �. ���«— u., y­ (inn,/ may ue requirea on certain projects. .. The project's milestone dates were amended as per the Finding Deadline Extension approval letter issued by the Division on 01-Feb-2023. See: hgps:Adeg.nc.Qov/about/divisions/water-resources/water-natality-Dermittina/npdes wastewater/petmittingptocess Failure to meet any milestone may result in the forfeiture of funding for the proposed project. Noan� cnaa.i D E Q �� om+�nauw�oomenmwwh V North Carolina Department of Environmental Quality I Division of Water Infrastructure 512 N. Salisbury Street 1 1633 Mail Service Center I Raleigh, North Carolina 27699-1633 919.707.9160 Ms. Austin Yancey County 29-Jun-23 Page 2 of 2 All costs incurred prior to March 3, 2021, are not eligible for ARPA funds, and all ARPA funds must be expended prior to December 31, 2026: The Division will make no reimbursement of ARPA funds after December 31, 2026. Please also note that upon a detailed review of the project during the funding process, it may be determined that portions of your project are not eligible for funding. Upon detailed review of the project during the funding process, it may be determined that portions of your project are not eligible for funding and the total funding amount may be reduced. Additionally, changes in the scope or priority points awarded — based on additional information that becomes apparent during project review — may also result in changes to the total finding amount and loan terms. Environmental Review Requirements The State Environmental Policy Act exempts projects funded by the State Reserve (such as this project) from state -mandated environmental review. Federal requirements may still apply. [North Carolina General Statute (N.C.G.S.) 113A-12(2)h.] US Treasury Requirements Projects with an expected total cost of ten million dollars ($10,000,000) or more must meet US Treasury requirements for prevailing wage rates, project labor agreements, and related requirements. Recipients can either certify meeting the requirements or provide plans and reports as the SLFRF Compliance and Reporting Guidance (treasurv.gov_) specifies. Permitting Assistance We are offering a free, permit -assistance service to address any questions you may have about potential permitting requirements, pitfalls, fees, and timelines. If interested, please complete our online form at https:Hdeq.ne.gov/permits-niles/pennit-assistance-and-g-Liidance/permit assistance request form and a regional environmental coordinator will contact you. When applying for a permit, attach a copy of this letter to your permit application. We find it is helpfiil to identify ARPA projects not only to get your permit to you faster but also to assist with meeting the federal expenditure deadline of December 31, 2026. If you have any questions concerning this matter, or require general assistance regarding your project's Division -awarded funding, please contact your project's assigned project manager, Julia Byrd either by telephone at 828.772.1475 or by e-mail at julia.byrd@deq.nc.gov. Sincerely, � Jon Risgaard, Chief State Revolving Fund Section cc: Dana J. Bolden, P.E., WithersRavenel, Asheville NC (e-mail: dbolden@withersravenel.com) Cory Osborne, High Country Council of Governments, Boone NC (e-mail: cosbome@liccog.org) Antonio V. Evans, P.E. (DWI, via e-mail) Julia Byrd (DWI, via e-mail) Mark Hubbard, P.E. (DWI, via e-mail) ARPA Project File (COM — LOIF) ROY COOPER Governor ELIZABETH S. BISER Secretary SHADI ESKAF Director Ms. Lynn Austin, Manager Yancey County 110 Town Square / Room 11 Burnsville, North Carolina 28714 Dear Ms. Austin: NORTH CAROLINA Environmental Quality June 29, 2023 Subject: Letter of Intent to Fund — Amended American Rescue Plan Act — Earmark Pine Swamp WWTP Project DWI Project No.: SRP-W-ARP-0173 The Division of Water Infrastructure (Division) has reviewed your amended Requests for Funding (both amended request forms provided for this specific project) and determined your project is eligible to receive additional American Rescue Plan Act (ARPA) fiinding from the State Fiscal Recovery Fund (SFRF), established in Session Law (S.L.) 2021-180 and S.L. 2022-74. Projects funded from the SFRF must meet applicable federal law and guidance for the ARPA funds. The amended, ARPA project grant will be one -hundred percent (100%) of eligible project costs, for up to an amended, maximum total amount of $8 850 000 (total increase of $2 800 000), which shall be structured as follows: • One subtotal of $5,800,000 (increased from original LOIF), coming from the County's S.L. 2021-180 appropriation; and • An additional subtotal of $3,050,000 (no increase from original LOIF), coming from the County's S.L. 2022-74 appropriation. The first milestone is the submittal of design -and -bid package by February 29 2024 Please note that this intent to fund is contingent on meeting all the following milestones: Milestone Date Apply for all Necessary Permits* ASAP Design -and -Bid Package Submittal obtain allpermits) 29-Feb-2024** Design -and -Bid Package Approval 0 1 -Jul-2024** Advertise Project, Receive Bids, Submit Bid Information, and Receive Authority to Award 01-Au-2024** Execute Construction Contract(s)01-Nov-2024** Receive Last Reimbursement - Statutor `An en ineer , It 31-Dec- % Is ig a "to, ves anal ysts (EAA) may be required on certain projects. The project's milestone dates were amended as per the Funding Deadline Extension approval letter issued by the Division on 01-Feb-2023. See: https://d g.ne.zovlabout/divisionslivater-resourceslwater- italioL-permittinglnpdes wastewater/permitting rocess Failure to meet any milestone may result in the forfeiture of funding for the proposed project. r ;c c 7 D E Q North Carolina Department of Environmental Quality I Division of Water Infrastructure 512 N. Salisbury Street 1 1633 Mail Service Center I Raleigh, North Carolina 27699-1633 919.707.9160 Ms. Austin Yancey County 29-Jun-23 Page 2 of 2 All costs incurred prior to March 3, 2021, are not eligible for ARPA funds, and all ARPA funds must be expended prior to December 31, 2026: The Division will make no reimbursement of ARPA funds after December 31, 2026. Please also note that upon a detailed review of the project during the funding process, it may be determined that portions of your project are not eligible for funding. Upon detailed review of the project during the funding process, it may be determined that portions of your project are not eligible for funding and the total funding amount may be reduced. Additionally, changes in the scope or priority points awarded — based on additional information that becomes apparent during project review — may also result in changes to the total funding amount and loan terms. Environmental Review Requirements The State Environmental Policy Act exempts projects funded by the State Reserve (such as this project) from state -mandated environmental review. Federal requirements may still apply. [North Carolina General Statute (N.C.G.S.) 113A-12(2)h.] US Treasury Requirements Projects with an expected total cost of ten million dollars ($10,000,000) or more must meet US Treasury requirements for prevailing wage rates, project labor agreements, and related requirements. Recipients can either certify meeting the requirements or provide plans and reports as the SLFRF Compliance and Reporting Guidance (treasM.gov) specifies. Permitting Assistance We are offering a free, permit -assistance service to address any questions you may have about potential permitting requirements, pitfalls, fees, and timelines. If interested, please complete our online form at https://deg.nc.aov/permits-rules/permit-assistance-and-guidance/permit-assistance request form and a regional environmental coordinator will contact you. When applying for a permit, attach a copy of this letter to your permit application. We find it is helpful to identify ARPA projects not only to get your permit to you faster but also to assist with meeting the federal expenditure deadline of December 31, 2026. If you have any questions concerning this matter, or require general assistance regarding your project's Division -awarded funding, please contact your project's assigned project manager, Julia Byrd either by telephone at 828.772.1475 or by e-mail at julia.byrd@deq.nc.gov. Sincerely, 2 �0� Jon Risgaard, Chief State Revolving Fund Section cc: Dana J. Bolden, P.E., WithersRavenel, Asheville NC (e-mail: dbolden@withersravenel.com) Cory Osborne, High Country Council of Governments, Boone NC (e-mail: cosbome@hccog.org) Antonio V. Evans, P.E. (DWI, via e-mail) Julia Byrd (DWI, via e-mail) Mark Hubbard, P.E. (DWI, via e-mail) ARPA Project File (COM — LOIF)