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HomeMy WebLinkAboutNC0020621_Fact Sheet_20210813Fact Sheet NPDES Permit No. NCOO2O621 Permit Writer/Email Contact Nick Coco, nick.coco@ncdenr.gov: Date: May 6, 2021 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 2"d 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 Boone/ Jimmy Smith Wastewater Treatment Plant (WWTP) Applicant Address: PO Drawer 192, Boone, NC 28607 Facility Address: 201 Casey Lane, Boone, NC 28607 Permitted Flow: 4.82 MGD Facility Type/Waste: MAJOR Municipal; 96.1% domestic, 3.9% industrial* Facility Class: Grade IV Biological Water Pollution Control System Treatment Units: Mechanical bar screens, Parshall flume, Influent pump station, Aerated grit removal, Dual oxidation ditches (with fine bubble aeration), Flow equalization, Dual secondary clarifiers, Deep bed tertiary filtration, UV disinfection, Belt presses, Dual aerobic digesters, Sludge holding tank, Cascade aeration Pretreatment Program (Y/N) Y County: Watauga Region Winston-Salem *Based on permitted flows. Briefly describe the proposed permitting action and facility background: The Town of Boone has applied for an NPDES permit renewal at 4.82 MGD for the Jimmy Smith WWTP. This facility serves a population of approximately 25,900 residents, as well as 2 non -categorical significant industrial users (SIUs) via an approved pretreatment program. Treated domestic and industrial wastewater is discharged into the South Fork of the New River, a class C:+ water in the New River Basin. The facility has a primary Outfall 001. Page 1 of 11 2. Receiving Waterbodv Information: Receiving Waterbody Information Outfalls/Receiving Stream(s): Outfall 001 - South Fork of the New River Stream Index: 10-1-(3.5) Stream Classification': C:+ Drainage Area (mi2): 32.7 Summer 7Q10 (cfs) 9.5 Winter 7Q10 (cfs): 14 30Q2 (cfs): 20.3 Average Flow (cfs): 59 IWC (% effluent): 44 2020 303(d) listed/parameter: Not Listed Subject to TMDL/parameter: Yes- State wide Mercury TMDL implementation. Subbasin/HUC: 05-07-01/05050001 USGS Topo Quad: C12NW Boone, NC 1. Stream classification C:+. The "+" designation for the New River Basin identifies waters that are subject to a special management strategy specified in 15A NCAC 2B .0225 the Outstanding Resources Water (ORW) rule, in order to protect downstream waters designated as ORW. 3. Effluent Data Summary Effluent data for Outfall 001 is summarized below for the period of May 2017 through April 2021. Table 1. Effluent Data Summary Outfall 001 Parameter Units Average Max Min Permit Limit Flow MGD 2.6 0.98 MA 4.82 BOD (Summer) m /1 g 2 WA 7.5 MA 5.0 BOD (Winter) m /1 g 2 WA 15.0 MA 10.0 TSS mg/1 2.5 3 WA 30.0 MA 20.0 (Summer) mg/1 0.2 8.47 < 0.1 MA 2.0 NH3N (Winter) mg/1 0.2 11.1 < 0.1 WA 12.0 MA 4.0 DO mg/1 8.3 II " 6.7 DA > 6.0 Fecal coliform #/100 ml (geomean) 242n' < 1 (geometric) WA 400 MA 200 Temperature ° C 18 26 7 No requirement pH SU 7.6 7.9 60 6.0<pH< 9.0 Total Copper ug/1 9.2 14.5 < 5 Monitor & Report Page 2 of 11 Total Lead ug/1 < 5 < 5 < 5 Monitor & Report Total Zinc ug/1 52 106 34 Monitor & Report Bis (2-ethylhexyl) phthalate ug/1 9.3 < 10 < 5 Monitor & Report Total Hardness mg/1 140 278 107 Monitor & Report TN mg/1 17.7 28.7 5.46 Monitor & Report TP mg/1 0.7 1.8 0.061 Monitor & Report MA -Monthly Average, WA -Weekly Average DM -Daily Maximum, DA-Daily Average, QA- Quarterly Average, AA -Annual Average 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/1 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. The Town of Boone was the sole member of the New River Basin Coalition, which dissolved in 2019. The Division was notified on August 28, 2019. As such, only data from 2016 through 2018 were reviewed from NRBC station K2100000, located downstream of the Jimmy Smith WWTP at US Highway 421 South. Table 2. NRBC Data Summary Parameter Units K2100000 Average Max Min Temperature ° C 12.7 22.7 5.8 DO mg/1 9.4 11.63 7.47 Conductivity umhos/cm 164 265 76 Fecal Col form #/100m1 (geomean) 71 1000 8 Downstream temperature did not exceed 29 degrees during the period reviewed [per 15A NCAC 02B .0211(18)]. As no upstream data was recorded, no data comparison could be made between downstream temperature and natural water temperature. Downstream DO was not less than 5.0 mg/L during the period reviewed [per 15A NCAC 02B .0211(6)]. Downstream fecal coliform did not exceed a geometric mean of 200/100mL, nor did it exceed 400/100mL in greater than 20% of the samples taken during the period reviewed [per 15A NCAC 02B .0211(7)]. Page 3of11 While the facility is no longer a member of a monitoring coalition, instream sampling continues to be conducted downstream of the discharge via the Division's Ambient Monitoring System. The AMS station is the same as what was used by NRBC. Based on the downstream data review demonstrating no concerns with regard to surface water standards, and considering the Division shall continue using AMS to sample downstream of the facility, instream monitoring requirements have not been added at this time. However, as the Division is implementing dissolved metals standards in all permits, per the 2016 revisions to State water quality standards, the NPDES Permitting Unit will need site -specific instream hardness data, upstream of the discharge, for each facility monitoring these metals in order to calculate permit limitations. The Jimmy Smith WWTP has a pretreatment program that monitors hardness - dependent metals. Instream hardness sampling, upstream of the discharge, has been added to the permit at a monitoring frequency of quarterly. Is this facility a member of a Monitoring Coalition with waived instream monitoring (Y/N): N Name of Monitoring Coalition: NA 5. Compliance Summary Summarize the compliance record with permit effluent limits (past 5 years): The facility reported no limit violations during the period reviewed. Summarize the compliance record with aquatic toxicity test limits and any second species test results (past 5 years): The facility passed 18 of 18 quarterly chronic toxicity tests as well as 4 of 4 second species toxicity tests from March 2017 to April 2021. Summarize the results from the most recent compliance inspection: The last facility inspection conducted in May 2021 reported that the facility was compliant. 6. Water Quality -Based Effluent Limitations (WQBELs) Dilution and Mixing Zones In accordance with 15A NCAC 2B.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). 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 1SA 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 BOD limits are based on 15A NCAC 2B.0225(d)(4)(C) water quality standards for outstanding resource waters. No changes are proposed from the previous permit limits. Page 4 of 11 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/1 (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: As the facility uses UV disinfection and does not employ chlorination as a backup means of disinfection, the current permit does not include requirements for TRC. However, TRC shall still be sampled when conducting effluent pollutant scans. No changes are proposed for TRC. The existing ammonia limits are based on 15A NCAC 2B.0225(d)(4)(C) water quality standards for outstanding resource waters. The limits and have been reviewed in the attached WLA and have been found to be protective. No changes are proposed. 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 May 2017 through April 2021. Pollutants of concern included toxicants with positive detections and associated water 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: NA • Monitoring Only. 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: Total Copper • 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 Arsenic, Total Cadmium, Total Chromium, Total Lead, Total Nickel, Total Selenium, Total Silver, Total Molybdenum, Total Zinc, Bis (2-ethylhexyl) phthalate • POTW Effluent Pollutant Scan Review: Three effluent pollutant scans were evaluated for additional pollutants of concern. (PPAs from 2018, 2019 and 2020) 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: N/A Page 5 of 11 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: Acrylonitrile 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: NA Note: Total Phenolic Compounds and Total Beryllium were not analyzed in the RPA because both parameters were reported as non -detect in each of the Effluent Pollutant Scans. Additionally, bis (2- ethylhexyl) phthalate was reported as detected at 10 ug/L in the DMRs on 4/24/2018 and 5/15/2018. The Town has informed the Division that these were typographical errors and provided the lab sheets to confirm this [See attached]. 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: The permit requires quarterly chronic toxicity testing at 44% effluent concentration. No changes are proposed. 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 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/1. Table 3. Mercury Effluent Data Summary (4.82 MGD) 2017 2018 2019 2020 2021 # of Samples 3 4 4 4 1 Annual Average Conc. ng/L 3.5 1.8 4.4 2.05 5.55 Maximum Conc., ng/L 7.43 3.22 6.36 3.75 5.55 TBEL, ng/L 47 WQBEL, ng/L 13.6 Page 6 of 11 Describe proposed permit actions based on mercury evaluation:. 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 and reported quantifiable levels of mercury, a mercury minimization plan (MMP) is required. The Town requested the removal of the MMP condition in their renewal application. Based on the data, the Division will maintain the MMP requirement. Other TMDL/Nutrient Management Strategy Considerations If applicable, describe any other TMDLs/Nutrient Management Strategies and their implementation within this permit: 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 BOD5/TSS for Monthly Average, and 45 mg/l for BOD5/TSS for Weekly Average). YES If NO, provide a justification for alternative limitations (e.g., waste stabilization pond). NA Are 85% removal requirements for BOD5/TSS included in the permit? YES 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): NO If YES, confirm that antibacksliding provisions are not violated: NA 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 2B.0500; 2) Page 7 of 11 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. Currently, temperature and conductivity monitoring are not required. Per 15A NCAC 02B .0508, Grade IV Water Quality Limited facilities shall monitor for temperature and conductivity on a daily basis. As such, daily effluent temperature and conductivity monitoring has been added to the permit. The Town of Boone requested monitoring frequency reductions for BOD5, Total Suspended Solids, NH3- N and Fecal Coliform on June 2, 2021 based on DWR Guidance Regarding the Reduction of Monitoring Frequencies in NPDES Permits for Exceptionally Performing Facilities. The last three years of the facility's data for these parameters have been reviewed in accordance with the criteria outlined in the guidance. The Division has decided to grant the 2/week monitoring frequency requirements for BOD5, Total Suspended Solids, NH3-N and Fecal Coliform. 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 4.82 MGD Parameter Current Permit Proposed Change Basis for Condition/Change Flow MA 4.82 MGD No change 15A NCAC 2B .0505 BOD5 (summer) MA 5.0 mg/1 WA 7.5 mg/1 Monitor and Report Daily No change to limits 2/week monitoring WQBEL. 15A NCAC 2B.0225(d)(4)(C); DWR Guidance Regarding the Reduction of Monitoring Frequencies in NPDES Permits for Exceptionally Performing Facilities BOD5 (Winter) MA 10.0 mg/1 WA 15.0 mg/1 Monitor and Report Daily No change to limits 2/week monitoring WQBEL. 2021 WLA. 15A NCAC 2B.0225(d)(4)(C); DWR Guidance Regarding the Reduction of Monitoring Frequencies in NPDES Permits for Exceptionally Performing Facilities NH3-N (summer) MA 2.0 mg/I WA 6.0 mg/L No change to limits 2/week monitoring WQBEL. 2021 WLA. 15A NCAC 2B.0225(d)(4)(C); DWR Guidance Regarding the Reduction of Page 8 of 11 Monitor and Report 3/Week Monitoring Frequencies in NPDES Permits for Exceptionally Performing Facilities NH3-N (winter) MA 4.0 mg/L WA 12.0 mg/L Monitor and Report 3/Week No change to limits 2/week monitoring WQBEL. 15A NCAC 2B.0225(d)(4)(C); DWR Guidance Regarding the Reduction of Monitoring Frequencies in NPDES Permits for Exceptionally Performing Facilities TSS MA 20.0 mg/1 WA 30.0 mg/1 Monitor and Report Daily No change to limits 2/week monitoring WQBEL. 15A NCAC 2B.0225(d)(4)(C); DWR Guidance Regarding the Reduction of Monitoring Frequencies in NPDES Permits for Exceptionally Performing Facilities Fecal coliform MA 200 /100m1 WA 400 /100m1 Monitor and Report Daily No change to limits 2/week monitoring WQBEL. State WQ standard, 15A NCAC 2B; DWR Guidance Regarding the Reduction of Monitoring Frequencies in NPDES Permits for Exceptionally Performing Facilities DO DA > 6 mg/L Monitor and Report Daily No change WQBEL. State WQ standard, 15A NCAC 2B .0200 Temperature No requirement Monitor and Report Daily Surface Water Monitoring, 15A NCAC 2B. 0500 Conductivity No requirement Monitor and Report Daily Surface Water Monitoring, 15A NCAC 2B. 0500 pH 6 — 9 SU Monitor and Report Daily No change WQBEL. State WQ standard, 15A NCAC 2B Total Nitrogen Monitor and Report Quarterly No change Surface Water Monitoring, 15A NCAC 2B. 0500 Total Phosphorous Monitor and Report Quarterly No change Surface Water Monitoring, 15A NCAC 2B. 0500 Total Copper Monitor and Report Quarterly No change Based on results of Reasonable Potential Analysis (RPA); No RP , Predicted Max > 50% of Allowable Cw - apply Quarterly Monitoring Total Lead Monitor and Report Quarterly Remove Requirement Based on results of Reasonable Potential Analysis (RPA); No RP, Predicted Max < 50% of Allowable Cw - No Monitoring required Total Zinc Monitor and Report Quarterly Remove Requirement Based on results of Reasonable Potential Analysis (RPA); No RP, Predicted Max < 50% of Allowable Cw - No Monitoring required Bis (2-ethylhexyl) phthalate Monitor and Report Quarterly Remove Requirement Based on results of Reasonable Potential Analysis (RPA); All non - Page 9 of 11 detect < 10 ug/L and < 5 ug/L - No Monitoring required Acrylonitrile No requirement Monitor and Report Quarterly Based on results of Reasonable Potential Analysis (RPA); RP for Limited Dataset (n<8 samples) - apply Quarterly Monitoring; Grab sample, per 15A NCAC 02B .0505 Total Hardness Quarterly Effluent monitoring Add Quarterly Upstream Monitoring Hardness -dependent dissolved metals water quality standards approved in 2016; Pretreatment facility Chronic Toxicity Chronic limit, 44% effluent No change WQBEL. No toxics in toxic amounts. 15A NCAC 2B Mercury Minimization Plan (MMP) MMP required No change Consistent with 2012 Statewide Mercury TMDL Implementation. Effluent Pollutant Scan Three times per permit cycle No change; conducted in 2023, 2024, 2025 40 CFR 122 Electronic Reporting Electronic Reporting Special Condition No change In accordance with EPA Electronic Reporting Rule 2015. MGD — Million gallons per day, MA - Monthly Average, WA — Weekly Average, DM — Daily Max, QA — Quarterly Average, DA — Daily Average, AA — Annual Average 13. Public Notice Schedule: Permit to Public Notice: June 8, 2021 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. Fact Sheet Addendum (if applicable): The draft was submitted to the Town of Boone, EPA Region IV, and the Division's Winston- Salem Regional Office, Aquatic Toxicology Branch, Ecosystems Branch and Operator Certification Program for review. The Division received comments from the Town of Boone on July 7, 2021 via email which noted that the effluent conductivity monitoring that was meant to be added into the permit was not included in the permit requirements outlined in Section A.(1.), and requested that Special Condition A.(3.) Effluent Pollutant Scan include language that allows for the exclusion of total residual chlorine monitoring for the facility, since it uses UV disinfection and has no chlorine backup. As the PPA scans are the only sampling requirements that track chlorine in the effluent stream and it only occurs 3 times per permit cycle, the condition has been maintained. 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: • Per 15A NCAC 02B .0508, effluent conductivity monitoring has been added to Section A.(1.). Page 10 of 11 15. Fact Sheet Attachments (if applicable): • RPA Spreadsheet Summary • BOD and TSS Removal • Dissolved Metals Implementation/Freshwater • Waste Load Allocation Spreadsheet • Mercury TMDL Spreadsheet • Toxicity Summary • Pretreatment Summary • Inspection Report Page 11 of 11 Coco, Nick A From: Coco, Nick A Sent: Monday, August 16, 2021 10:40 AM To: Karen Reece Cc: Montebello, Michael J Subject: RE: EXTERNAL EMAIL - RE: EXTERNAL EMAIL - RE: [External] Re: EXTERNAL EMAIL - Draft Permit Jimmy Smith WWTP, NPDES Permit Number NC0020621, SIC Code 4952 Hi Karen, I hope all is well. I've just finished final review of the NPDES permit and received feedback internally regarding the total residual chlorine sampling required in the PPAs. Based on the internal discussion, I am unable to add language to waive the TRC sampling required in the PPAs, even though no chlorine is used in the treatment works. The reasoning behind this is that, while the treatment works is not adding chlorine to the wastewater, outside sources of chlorine may exist that would otherwise not be tracked. As such, the condition language has been maintained and total residual chlorine will still need to be sampled 3 times per permit cycle via the PPAs. I just wanted to give you the heads up before we sent out the final permit. Thanks and have a great day. Best, Nicholas A. Coco, El Engineer NPDES Municipal Permitting Unit NC DEQ/ Division of Water Resources / Water Quality Permitting 919 707-3609 office 919 707 9000 main office nick.coco@ncdenr.gov Physical Address: 512 North Salisbury St.,Raleigh, NC, 27604 Mailing Address: 1617 Mail Service Center, Raleigh, NC, 27699-1617 I'm working at home due to the State of Emergency and DWR policy for Covid-19. Thanks for being patient as we try to stay safe. **Email is preferred but 1 am available to talk by via Microsoft Teams** hilla Email correspondence to and from this address is subject to the North Carolina Public Records Law and may be disclosed to third parties. 1 From: Karen Reece <Karen.Reece@townofboone.net> Sent: Friday, July 2, 2021 3:11 PM To: Coco, Nick A <Nick.Coco@ncdenr.gov> Cc: Montebello, Michael J <Michael.Montebello@ncdenr.gov>; josh.eller <josh.eller@townofboone.net>; Rick Miller <Rick.Miller@townofboone.net>; Rudy Broschinski <Rudy.Broschinski@townofboone.net> Subject: Re: EXTERNAL EMAIL - RE: EXTERNAL EMAIL - RE: [External] Re: EXTERNAL EMAIL - Draft Permit Jimmy Smith WWTP, NPDES Permit Number NC0020621, SIC Code 4952 CAUTION: External email. Do not click links or open attachments unless you verify. Send all suspicious email as an attachment to Report Spam. Hi Nick, Thanks for providing that information. Our comment just includes the following items, which are being mentioned for the sake of clarity for us: Conductivity monitoring was not included in chart in section Al. Please exclude total residual chlorine monitoring found in section A3 since it is not a required parameter for PPA at this location as we only utilize UV sterilization at the plant. The mailing address for PAR still indicates the PERCS Unit. Best regards and happy fourth of July! Karen Reece Lab Supervisor/Pretreatment Coordinator Town of Boone WWTP PO Drawer 192 Boone, NC 28607 828/268-6272 office 828/268-6279 fax "The Town of Boone is an equal opportunity provider and employer." Email correspondence to and from this address is subject to public records requests pursuant to the North Carolina Public Records Law, resulting in monitoring and potential disclosure of this message to third parties. »> "Coco, Nick A" <Nick.Coco@ncdenr.gov> 6/29/2021 10:57 AM >» Hi Karen, I apologize for the late reply here. We would be looking at 12 samples over 3 years, under the quarterly monitoring regimen. Having samples over this duration would provide a better understanding of longer term operation of the facility and instances of presence for the parameters. I believe, in the case of the MMP, it has more to do with the statewide TMDL. 2 Thanks, Nicholas A. Coco, El Engineer NPDES Municipal Permitting Unit NC DEQ/ Division of Water Resources / Water Quality Permitting 919 707-3609 office 919 707 9000 main office nick.coco@ncdenr.gov Physical Address: 512 North Salisbury St.,Raleigh, NC, 27604 Mailing Address: 1617 Mail Service Center, Raleigh, NC, 27699-1617 I'm working at home due to the State of Emergency and DWR policy for Covid-19. Thanks for being patient as we try to stay safe. **Email is preferred but 1 am available to talk by via Microsoft Teams** NIZ "Nothlnq Coffporea .i...- Email correspondence to and from this address is subject to the North Carolina Public Records Law and may be disclosed to third parties. From: Karen Reece <Karen.Reece@townofboone.net> Sent: Thursday, June 24, 2021 11:05 AM To: Coco, Nick A <Nick.Coco@ncdenr.gov> Cc: Montebello, Michael J <Michael.Montebello@ncdenr.gov> Subject: Re: EXTERNAL EMAIL - RE: [External] Re: EXTERNAL EMAIL - Draft Permit Jimmy Smith WWTP, NPDES Permit Number NC0020621, SIC Code 4952 CAUTION: External email. Do not click links or open attachments unless you verify. Send all suspicious email as an attachment to Report Spam. Good morning! Thanks for the response. That will help us make an appropriate comment. 1-got it 2-12 samples over what time period? Would the division accept 12 days of samples in one month? 12 in 12 weeks, etc? 3-got it 4-got it. Do all implementation strategies require EMC approval or is it because of the TMDL? 5-got it Regards, Karen Reece Lab Supervisor/Pretreatment Coordinator 3 Town of Boone WWTP PO Drawer 192 Boone, NC 28607 828/268-6272 office 828/268-6279 fax "The Town of Boone is an equal opportunity provider and employer." Email correspondence to and from this address is subject to public records requests pursuant to the North Carolina Public Records Law, resulting in monitoring and potential disclosure of this message to third parties. »> "Coco, Nick A" <Nick.Coco@ncdenr.gov> 6/24/2021 9:20 AM >» Hi Karen, Thanks for reaching out. 1. Conductivity seems to have been overlooked in years past. 15A NCAC 02B .0508 notes that water quality limited facilities with SIC 4952 that are Grave IV should be sampling for conductivity at a daily frequency. Since the Jimmy Smith WWTP has industrial contribution, keeping track of conductivity is especially of interest. 2. Regarding acrylonitrile, after 12 samples have been collected, the Town may request a major modification to the permit to have the Division conduct an RPA to assess the need for continued sampling. However, please note that the RPA would not just cover acrylonitrile. 3. Footnote 2 of Table B. Effluent Parameters for All POTWs with a Flow Equal to or Greater Than 0.1 MGD in EPA Form 2A states, "Facilities that do not use chlorine for disinfection, do not use chlorine elsewhere in the treatment process, and have no reasonable potential to discharge chlorine in their effluent are not required to report data for total residual chlorine." Since we adopted our list based off of this EPA requirement, you are okay to continue reporting NA in your application and to continue not sampling for it in your PPA scans. As this isn't expressly stated in the Effluent Pollutant Scan special condition as is, I will add language to the condition to clarify that you do not need to conduct the TRC sampling if you do not use chlorine in your process. 4. The mercury TMDL is statewide, so I would be applying it regardless of the stream index. However, I appreciate you letting me know about this so I can look more closely at that benthos listing. With regard to the letter, I have been informed that we cannot implement this as it appears this implementation strategy was not presented to or approved by the Environment Management Commission to date. As such, the MMP condition will be maintained. 5. We are currently in the process of updating the Boiler Plate language to address this point and a few other items. Please feel free to follow up with me with any additional comments you may have regarding the permit. Thanks and have a great day, Nicholas A. Coco, El Engineer NPDES Municipal Permitting Unit NC DEQ/ Division of Water Resources / Water Quality Permitting 919 707-3609 office 919 707 9000 main office nick.coco@ncdenr.gov 4 Physical Address: 512 North Salisbury St.,Raleigh, NC, 27604 Mailing Address: 1617 Mail Service Center, Raleigh, NC, 27699-1617 I'm working at home due to the State of Emergency and DWR policy for Covid-19. Thanks for being patient as we try to stay safe. **Email is preferred but 1 am available to talk by via Microsoft Teams** KrIZ Email correspondence to and from this address is subject to the North Carolina Public Records Law and may be disclosed to third parties. From: Karen Reece <Karen.Reece@townofboone.net> Sent: Thursday, June 17, 2021 3:14 PM To: Coco, Nick A <Nick.Coco@ncdenr.gov> Subject: [External] Re: EXTERNAL EMAIL - Draft Permit Jimmy Smith WWTP, NPDES Permit Number NC0020621, SIC Code 4952 CAUTION: External email. Do not click links or open attachments unless you verify. Send all suspicious email as an attachment to Report Spam. This isn't really our comment, but some questions in order that we can make a useful comment regarding Acrylonitrile and the MMP and note corrections that may be needed for other items. 1-We noticed that conductivity monitoring was added in the cover letter, but not to section Al. Out of curiosity, was this something that had just been overlooked in the past or is there now a concern about conductivity downstream from us that made it necessary? 2-Is there information and/or data that we could submit to reduce monitoring frequency of acrylonitrile from section Al ahead of the final permit being issued? 3-In section A3 total residual chlorine is listed as a required parameter, but we have not included it in the past since we use only UV disinfection at the plant. Should we plan on adding this to our PPAs? 4-The fact sheet discussed the reasons for retaining the MMP requirement in A4, but we would like to bring the following points up for further consideration. • The 303d listing of 10-1-(3.5)a which was highlighted in the fact sheet is upstream of our plant. The next downstream sampling site is 10-1-(3.5)band is not listed. • The "End of 2018 Pretreatment Mailing" letter sent on December 13, 2018 allowed for consideration of removal even when effluent mercury concentrations are not consistently below 1 ng/L. The letter has been attached to this email and the information referenced is on the first page in item 2. 5-In the boiler plate, the mailing address for PAR still indicates PERCS Unit. Will this need updating? Rega rds- Karen Reece 5 Lab Supervisor/Pretreatment Coordinator Town of Boone WWTP PO Drawer 192 Boone, NC 28607 828/268-6272 office 828/268-6279 fax "The Town of Boone is an equal opportunity provider and employer." Email correspondence to and from this address is subject to public records requests pursuant to the North Carolina Public Records Law, resulting in monitoring and potential disclosure of this message to third parties. »> "Coco, Nick A" <Nick.Coco@ncdenr.gov> 6/16/2021 7:06 AM >» Hi Rick, I hope all is well. Please see the following links to review the draft permit and cover letter, and see attached to review the fact sheet for NPDES permit NC0020621 for the Jimmy Smith WWTP. I have also provided a link to the NPDES Standard Conditions for your reference. The Town has a 30-day period ending on 7/16/2021 to comment, ask questions, or request an extension to review this draft permit. Please contact me with any comments you might have. Draft Permit: https://edocs.deq.nc.gov/WaterResources/DocView.aspx?id=1837767&dbid=0&repo=WaterResources&cr=1 NPDES Standard Conditions: https://bit.ly/3k5NFaL Thanks and have a nice day. Nicholas A. Coco, El Engineer NPDES Municipal Permitting Unit NC DEQ/ Division of Water Resources / Water Quality Permitting 919 707-3609 office 919 707 9000 main office nick.coco@ncdenr.gov Physical Address: 512 North Salisbury St.,Raleigh, NC, 27604 Mailing Address: 1617 Mail Service Center, Raleigh, NC, 27699-1617 I'm working at home due to the State of Emergency and DWR policy for Covid-19. Thanks for being patient as we try to stay safe. **Email is preferred but 1 am available to talk by via Microsoft Teams** 111110 • `Notting Compares A Email correspondence to and from this address is subject to the 6 North Carolina Public Records Law and may be disclosed to third parties. Coco, Nick A From: Coco, Nick A Sent: Tuesday, July 6, 2021 9:24 AM To: Karen Reece Subject: RE: EXTERNAL EMAIL - RE: EXTERNAL EMAIL - RE: [External] Re: EXTERNAL EMAIL - Draft Permit Jimmy Smith WWTP, NPDES Permit Number NC0020621, SIC Code 4952 Hi Karen, Thank you for submitting these comments. I will make sure to address these points in the final permit. Best, Nicholas A. Coco, El Engineer NPDES Municipal Permitting Unit NC DEQ/ Division of Water Resources / Water Quality Permitting 919 707-3609 office 919 707 9000 main office nick.coco@ncdenr.gov Physical Address: 512 North Salisbury St.,Raleigh, NC, 27604 Mailing Address: 1617 Mail Service Center, Raleigh, NC, 27699-1617 I'm working at home due to the State of Emergency and DWR policy for Covid-19. Thanks for being patient as we try to stay safe. **Email is preferred but 1 am available to talk by via Microsoft Teams** 111110 o#NAQ C rr Email correspondence to and from this address is subject to the North Carolina Public Records Law and may be disclosed to third parties. From: Karen Reece <Karen.Reece@townofboone.net> Sent: Friday, July 2, 2021 3:11 PM To: Coco, Nick A <Nick.Coco@ncdenr.gov> Cc: Montebello, Michael J <Michael.Montebello@ncdenr.gov>; josh.eller <josh.eller@townofboone.net>; Rick Miller <Rick.Miller@townofboone.net>; Rudy Broschinski <Rudy.Broschinski@townofboone.net> Subject: Re: EXTERNAL EMAIL - RE: EXTERNAL EMAIL - RE: [External] Re: EXTERNAL EMAIL - Draft Permit Jimmy Smith WWTP, NPDES Permit Number NC0020621, SIC Code 4952 CAUTION: External email. Do not click links or open attachments unless you verify. Send all suspicious email as an attachment to Report Spam. Hi Nick, 1 Thanks for providing that information. Our comment just includes the following items, which are being mentioned for the sake of clarity for us: Conductivity monitoring was not included in chart in section Al. Please exclude total residual chlorine monitoring found in section A3 since it is not a required parameter for PPA at this location as we only utilize UV sterilization at the plant. The mailing address for PAR still indicates the PERCS Unit. Best regards and happy fourth of July! Karen Reece Lab Supervisor/Pretreatment Coordinator Town of Boone WWTP PO Drawer 192 Boone, NC 28607 828/268-6272 office 828/268-6279 fax "The Town of Boone is an equal opportunity provider and employer." Email correspondence to and from this address is subject to public records requests pursuant to the North Carolina Public Records Law, resulting in monitoring and potential disclosure of this message to third parties. »> "Coco, Nick A" <Nick.Coco@ncdenr.gov> 6/29/2021 10:57 AM >» Hi Karen, I apologize for the late reply here. We would be looking at 12 samples over 3 years, under the quarterly monitoring regimen. Having samples over this duration would provide a better understanding of longer term operation of the facility and instances of presence for the parameters. I believe, in the case of the MMP, it has more to do with the statewide TMDL. Thanks, Nicholas A. Coco, El Engineer NPDES Municipal Permitting Unit NC DEQ/ Division of Water Resources / Water Quality Permitting 919 707-3609 office 919 707 9000 main office nick.coco@ncdenr.gov Physical Address: 512 North Salisbury St.,Raleigh, NC, 27604 Mailing Address: 1617 Mail Service Center, Raleigh, NC, 27699-1617 2 I'm working at home due to the State of Emergency and DWR policy for Covid-19. Thanks for being patient as we try to stay safe. **Email is preferred but 1 am available to talk by via Microsoft Teams** NCotI* Q Compares w Email correspondence to and from this address is subject to the North Carolina Public Records Law and may be disclosed to third parties. From: Karen Reece <Karen.Reece@townofboone.net> Sent: Thursday, June 24, 2021 11:05 AM To: Coco, Nick A <Nick.Coco@ncdenr.gov> Cc: Montebello, Michael J <Michael.Montebello@ncdenr.gov> Subject: Re: EXTERNAL EMAIL - RE: [External] Re: EXTERNAL EMAIL - Draft Permit Jimmy Smith WWTP, NPDES Permit Number NC0020621, SIC Code 4952 CAUTION: External email. Do not click links or open attachments unless you verify. Send all suspicious email as an attachment to Report Spam. Good morning! Thanks for the response. That will help us make an appropriate comment. 1-got it 2-12 samples over what time period? Would the division accept 12 days of samples in one month? 12 in 12 weeks, etc? 3-got it 4-got it. Do all implementation strategies require EMC approval or is it because of the TMDL? 5-got it Regards, Karen Reece Lab Supervisor/Pretreatment Coordinator Town of Boone WWTP PO Drawer 192 Boone, NC 28607 828/268-6272 office 828/268-6279 fax "The Town of Boone is an equal opportunity provider and employer." 3 Email correspondence to and from this address is subject to public records requests pursuant to the North Carolina Public Records Law, resulting in monitoring and potential disclosure of this message to third parties. »> "Coco, Nick A" <Nick.Coco@ncdenr.gov> 6/24/2021 9:20 AM >» Hi Karen, Thanks for reaching out. 1. Conductivity seems to have been overlooked in years past. 15A NCAC 02B .0508 notes that water quality limited facilities with SIC 4952 that are Grave IV should be sampling for conductivity at a daily frequency. Since the Jimmy Smith WWTP has industrial contribution, keeping track of conductivity is especially of interest. 2. Regarding acrylonitrile, after 12 samples have been collected, the Town may request a major modification to the permit to have the Division conduct an RPA to assess the need for continued sampling. However, please note that the RPA would not just cover acrylonitrile. 3. Footnote 2 of Table B. Effluent Parameters for All POTWs with a Flow Equal to or Greater Than 0.1 MGD in EPA Form 2A states, "Facilities that do not use chlorine for disinfection, do not use chlorine elsewhere in the treatment process, and have no reasonable potential to discharge chlorine in their effluent are not required to report data for total residual chlorine." Since we adopted our list based off of this EPA requirement, you are okay to continue reporting NA in your application and to continue not sampling for it in your PPA scans. As this isn't expressly stated in the Effluent Pollutant Scan special condition as is, I will add language to the condition to clarify that you do not need to conduct the TRC sampling if you do not use chlorine in your process. 4. The mercury TMDL is statewide, so I would be applying it regardless of the stream index. However, I appreciate you letting me know about this so I can look more closely at that benthos listing. With regard to the letter, I have been informed that we cannot implement this as it appears this implementation strategy was not presented to or approved by the Environment Management Commission to date. As such, the MMP condition will be maintained. 5. We are currently in the process of updating the Boiler Plate language to address this point and a few other items. Please feel free to follow up with me with any additional comments you may have regarding the permit. Thanks and have a great day, Nicholas A. Coco, El Engineer NPDES Municipal Permitting Unit NC DEQ/ Division of Water Resources / Water Quality Permitting 919 707-3609 office 919 707 9000 main office nick.coco@ncdenr.gov Physical Address: 512 North Salisbury St.,Raleigh, NC, 27604 Mailing Address: 1617 Mail Service Center, Raleigh, NC, 27699-1617 I'm working at home due to the State of Emergency and DWR policy for Covid-19. Thanks for being patient as we try to stay safe. **Email is preferred but 1 am available to talk by via Microsoft Teams** NIZ ."`Nothing Compares raw Email correspondence to and from this address is subject to the 4 North Carolina Public Records Law and may be disclosed to third parties. From: Karen Reece <Karen.Reece@townofboone.net> Sent: Thursday, June 17, 2021 3:14 PM To: Coco, Nick A <Nick.Coco@ncdenr.gov> Subject: [External] Re: EXTERNAL EMAIL - Draft Permit Jimmy Smith WWTP, NPDES Permit Number NC0020621, SIC Code 4952 CAUTION: External email. Do not click links or open attachments unless you verify. Send all suspicious email as an attachment to Report Spam. This isn't really our comment, but some questions in order that we can make a useful comment regarding Acrylonitrile and the MMP and note corrections that may be needed for other items. 1-We noticed that conductivity monitoring was added in the cover letter, but not to section Al. Out of curiosity, was this something that had just been overlooked in the past or is there now a concern about conductivity downstream from us that made it necessary? 2-Is there information and/or data that we could submit to reduce monitoring frequency of acrylonitrile from section Al ahead of the final permit being issued? 3-In section A3 total residual chlorine is listed as a required parameter, but we have not included it in the past since we use only UV disinfection at the plant. Should we plan on adding this to our PPAs? 4-The fact sheet discussed the reasons for retaining the MMP requirement in A4, but we would like to bring the following points up for further consideration. • The 303d listing of 10-1-(3.5)a which was highlighted in the fact sheet is upstream of our plant. The next downstream sampling site is 10-1-(3.5)band is not listed. • The "End of 2018 Pretreatment Mailing" letter sent on December 13, 2018 allowed for consideration of removal even when effluent mercury concentrations are not consistently below 1 ng/L. The letter has been attached to this email and the information referenced is on the first page in item 2. 5-In the boiler plate, the mailing address for PAR still indicates PERCS Unit. Will this need updating? Rega rds- Karen Reece Lab Supervisor/Pretreatment Coordinator Town of Boone WWTP PO Drawer 192 Boone, NC 28607 828/268-6272 office 828/268-6279 fax 5 "The Town of Boone is an equal opportunity provider and employer." Email correspondence to and from this address is subject to public records requests pursuant to the North Carolina Public Records Law, resulting in monitoring and potential disclosure of this message to third parties. »> "Coco, Nick A" <Nick.Coco@ncdenr.gov> 6/16/2021 7:06 AM >» Hi Rick, I hope all is well. Please see the following links to review the draft permit and cover letter, and see attached to review the fact sheet for NPDES permit NC0020621 for the Jimmy Smith WWTP. I have also provided a link to the NPDES Standard Conditions for your reference. The Town has a 30-day period ending on 7/16/2021 to comment, ask questions, or request an extension to review this draft permit. Please contact me with any comments you might have. Draft Permit: https://edocs.deq.nc.gov/WaterResources/DocView.aspx?id=1837767&dbid=0&repo=WaterResources&cr=1 NPDES Standard Conditions: https://bit.ly/3k5NFaL Thanks and have a nice day. Nicholas A. Coco, El Engineer NPDES Municipal Permitting Unit NC DEQ/ Division of Water Resources / Water Quality Permitting 919 707-3609 office 919 707 9000 main office nick.coco@ncdenr.gov Physical Address: 512 North Salisbury St.,Raleigh, NC, 27604 Mailing Address: 1617 Mail Service Center, Raleigh, NC, 27699-1617 I'm working at home due to the State of Emergency and DWR policy for Covid-19. Thanks for being patient as we try to stay safe. **Email is preferred but 1 am available to talk by via Microsoft Teams** 0 •_J-Intiothing Compares ,4.A Email correspondence to and from this address is subject to the North Carolina Public Records Law and may be disclosed to third parties. 6 Coco, Nick A From: Coco, Nick A Sent: Monday, August 16, 2021 10:40 AM To: Karen Reece Cc: Montebello, Michael J Subject: RE: EXTERNAL EMAIL - RE: EXTERNAL EMAIL - RE: [External] Re: EXTERNAL EMAIL - Draft Permit Jimmy Smith WWTP, NPDES Permit Number NC0020621, SIC Code 4952 Hi Karen, I hope all is well. I've just finished final review of the NPDES permit and received feedback internally regarding the total residual chlorine sampling required in the PPAs. Based on the internal discussion, I am unable to add language to waive the TRC sampling required in the PPAs, even though no chlorine is used in the treatment works. The reasoning behind this is that, while the treatment works is not adding chlorine to the wastewater, outside sources of chlorine may exist that would otherwise not be tracked. As such, the condition language has been maintained and total residual chlorine will still need to be sampled 3 times per permit cycle via the PPAs. I just wanted to give you the heads up before we sent out the final permit. Thanks and have a great day. Best, Nicholas A. Coco, El Engineer NPDES Municipal Permitting Unit NC DEQ/ Division of Water Resources / Water Quality Permitting 919 707-3609 office 919 707 9000 main office nick.coco@ncdenr.gov Physical Address: 512 North Salisbury St.,Raleigh, NC, 27604 Mailing Address: 1617 Mail Service Center, Raleigh, NC, 27699-1617 I'm working at home due to the State of Emergency and DWR policy for Covid-19. Thanks for being patient as we try to stay safe. **Email is preferred but 1 am available to talk by via Microsoft Teams** hilla Email correspondence to and from this address is subject to the North Carolina Public Records Law and may be disclosed to third parties. 1 From: Karen Reece <Karen.Reece@townofboone.net> Sent: Friday, July 2, 2021 3:11 PM To: Coco, Nick A <Nick.Coco@ncdenr.gov> Cc: Montebello, Michael J <Michael.Montebello@ncdenr.gov>; josh.eller <josh.eller@townofboone.net>; Rick Miller <Rick.Miller@townofboone.net>; Rudy Broschinski <Rudy.Broschinski@townofboone.net> Subject: Re: EXTERNAL EMAIL - RE: EXTERNAL EMAIL - RE: [External] Re: EXTERNAL EMAIL - Draft Permit Jimmy Smith WWTP, NPDES Permit Number NC0020621, SIC Code 4952 CAUTION: External email. Do not click links or open attachments unless you verify. Send all suspicious email as an attachment to Report Spam. Hi Nick, Thanks for providing that information. Our comment just includes the following items, which are being mentioned for the sake of clarity for us: Conductivity monitoring was not included in chart in section Al. Please exclude total residual chlorine monitoring found in section A3 since it is not a required parameter for PPA at this location as we only utilize UV sterilization at the plant. The mailing address for PAR still indicates the PERCS Unit. Best regards and happy fourth of July! Karen Reece Lab Supervisor/Pretreatment Coordinator Town of Boone WWTP PO Drawer 192 Boone, NC 28607 828/268-6272 office 828/268-6279 fax "The Town of Boone is an equal opportunity provider and employer." Email correspondence to and from this address is subject to public records requests pursuant to the North Carolina Public Records Law, resulting in monitoring and potential disclosure of this message to third parties. »> "Coco, Nick A" <Nick.Coco@ncdenr.gov> 6/29/2021 10:57 AM >» Hi Karen, I apologize for the late reply here. We would be looking at 12 samples over 3 years, under the quarterly monitoring regimen. Having samples over this duration would provide a better understanding of longer term operation of the facility and instances of presence for the parameters. I believe, in the case of the MMP, it has more to do with the statewide TMDL. 2 Thanks, Nicholas A. Coco, El Engineer NPDES Municipal Permitting Unit NC DEQ/ Division of Water Resources / Water Quality Permitting 919 707-3609 office 919 707 9000 main office nick.coco@ncdenr.gov Physical Address: 512 North Salisbury St.,Raleigh, NC, 27604 Mailing Address: 1617 Mail Service Center, Raleigh, NC, 27699-1617 I'm working at home due to the State of Emergency and DWR policy for Covid-19. Thanks for being patient as we try to stay safe. **Email is preferred but 1 am available to talk by via Microsoft Teams** NIZ "Nothlnq Coffporea .i...- Email correspondence to and from this address is subject to the North Carolina Public Records Law and may be disclosed to third parties. From: Karen Reece <Karen.Reece@townofboone.net> Sent: Thursday, June 24, 2021 11:05 AM To: Coco, Nick A <Nick.Coco@ncdenr.gov> Cc: Montebello, Michael J <Michael.Montebello@ncdenr.gov> Subject: Re: EXTERNAL EMAIL - RE: [External] Re: EXTERNAL EMAIL - Draft Permit Jimmy Smith WWTP, NPDES Permit Number NC0020621, SIC Code 4952 CAUTION: External email. Do not click links or open attachments unless you verify. Send all suspicious email as an attachment to Report Spam. Good morning! Thanks for the response. That will help us make an appropriate comment. 1-got it 2-12 samples over what time period? Would the division accept 12 days of samples in one month? 12 in 12 weeks, etc? 3-got it 4-got it. Do all implementation strategies require EMC approval or is it because of the TMDL? 5-got it Regards, Karen Reece Lab Supervisor/Pretreatment Coordinator 3 Town of Boone WWTP PO Drawer 192 Boone, NC 28607 828/268-6272 office 828/268-6279 fax "The Town of Boone is an equal opportunity provider and employer." Email correspondence to and from this address is subject to public records requests pursuant to the North Carolina Public Records Law, resulting in monitoring and potential disclosure of this message to third parties. »> "Coco, Nick A" <Nick.Coco@ncdenr.gov> 6/24/2021 9:20 AM >» Hi Karen, Thanks for reaching out. 1. Conductivity seems to have been overlooked in years past. 15A NCAC 02B .0508 notes that water quality limited facilities with SIC 4952 that are Grave IV should be sampling for conductivity at a daily frequency. Since the Jimmy Smith WWTP has industrial contribution, keeping track of conductivity is especially of interest. 2. Regarding acrylonitrile, after 12 samples have been collected, the Town may request a major modification to the permit to have the Division conduct an RPA to assess the need for continued sampling. However, please note that the RPA would not just cover acrylonitrile. 3. Footnote 2 of Table B. Effluent Parameters for All POTWs with a Flow Equal to or Greater Than 0.1 MGD in EPA Form 2A states, "Facilities that do not use chlorine for disinfection, do not use chlorine elsewhere in the treatment process, and have no reasonable potential to discharge chlorine in their effluent are not required to report data for total residual chlorine." Since we adopted our list based off of this EPA requirement, you are okay to continue reporting NA in your application and to continue not sampling for it in your PPA scans. As this isn't expressly stated in the Effluent Pollutant Scan special condition as is, I will add language to the condition to clarify that you do not need to conduct the TRC sampling if you do not use chlorine in your process. 4. The mercury TMDL is statewide, so I would be applying it regardless of the stream index. However, I appreciate you letting me know about this so I can look more closely at that benthos listing. With regard to the letter, I have been informed that we cannot implement this as it appears this implementation strategy was not presented to or approved by the Environment Management Commission to date. As such, the MMP condition will be maintained. 5. We are currently in the process of updating the Boiler Plate language to address this point and a few other items. Please feel free to follow up with me with any additional comments you may have regarding the permit. Thanks and have a great day, Nicholas A. Coco, El Engineer NPDES Municipal Permitting Unit NC DEQ/ Division of Water Resources / Water Quality Permitting 919 707-3609 office 919 707 9000 main office nick.coco@ncdenr.gov 4 Physical Address: 512 North Salisbury St.,Raleigh, NC, 27604 Mailing Address: 1617 Mail Service Center, Raleigh, NC, 27699-1617 I'm working at home due to the State of Emergency and DWR policy for Covid-19. Thanks for being patient as we try to stay safe. **Email is preferred but 1 am available to talk by via Microsoft Teams** KrIZ Email correspondence to and from this address is subject to the North Carolina Public Records Law and may be disclosed to third parties. From: Karen Reece <Karen.Reece@townofboone.net> Sent: Thursday, June 17, 2021 3:14 PM To: Coco, Nick A <Nick.Coco@ncdenr.gov> Subject: [External] Re: EXTERNAL EMAIL - Draft Permit Jimmy Smith WWTP, NPDES Permit Number NC0020621, SIC Code 4952 CAUTION: External email. Do not click links or open attachments unless you verify. Send all suspicious email as an attachment to Report Spam. This isn't really our comment, but some questions in order that we can make a useful comment regarding Acrylonitrile and the MMP and note corrections that may be needed for other items. 1-We noticed that conductivity monitoring was added in the cover letter, but not to section Al. Out of curiosity, was this something that had just been overlooked in the past or is there now a concern about conductivity downstream from us that made it necessary? 2-Is there information and/or data that we could submit to reduce monitoring frequency of acrylonitrile from section Al ahead of the final permit being issued? 3-In section A3 total residual chlorine is listed as a required parameter, but we have not included it in the past since we use only UV disinfection at the plant. Should we plan on adding this to our PPAs? 4-The fact sheet discussed the reasons for retaining the MMP requirement in A4, but we would like to bring the following points up for further consideration. • The 303d listing of 10-1-(3.5)a which was highlighted in the fact sheet is upstream of our plant. The next downstream sampling site is 10-1-(3.5)band is not listed. • The "End of 2018 Pretreatment Mailing" letter sent on December 13, 2018 allowed for consideration of removal even when effluent mercury concentrations are not consistently below 1 ng/L. The letter has been attached to this email and the information referenced is on the first page in item 2. 5-In the boiler plate, the mailing address for PAR still indicates PERCS Unit. Will this need updating? Rega rds- Karen Reece 5 Lab Supervisor/Pretreatment Coordinator Town of Boone WWTP PO Drawer 192 Boone, NC 28607 828/268-6272 office 828/268-6279 fax "The Town of Boone is an equal opportunity provider and employer." Email correspondence to and from this address is subject to public records requests pursuant to the North Carolina Public Records Law, resulting in monitoring and potential disclosure of this message to third parties. »> "Coco, Nick A" <Nick.Coco@ncdenr.gov> 6/16/2021 7:06 AM >» Hi Rick, I hope all is well. Please see the following links to review the draft permit and cover letter, and see attached to review the fact sheet for NPDES permit NC0020621 for the Jimmy Smith WWTP. I have also provided a link to the NPDES Standard Conditions for your reference. The Town has a 30-day period ending on 7/16/2021 to comment, ask questions, or request an extension to review this draft permit. Please contact me with any comments you might have. Draft Permit: https://edocs.deq.nc.gov/WaterResources/DocView.aspx?id=1837767&dbid=0&repo=WaterResources&cr=1 NPDES Standard Conditions: https://bit.ly/3k5NFaL Thanks and have a nice day. Nicholas A. Coco, El Engineer NPDES Municipal Permitting Unit NC DEQ/ Division of Water Resources / Water Quality Permitting 919 707-3609 office 919 707 9000 main office nick.coco@ncdenr.gov Physical Address: 512 North Salisbury St.,Raleigh, NC, 27604 Mailing Address: 1617 Mail Service Center, Raleigh, NC, 27699-1617 I'm working at home due to the State of Emergency and DWR policy for Covid-19. Thanks for being patient as we try to stay safe. **Email is preferred but 1 am available to talk by via Microsoft Teams** 111110 • `Notting Compares A Email correspondence to and from this address is subject to the 6 North Carolina Public Records Law and may be disclosed to third parties. STATE OF NORTH CAROLINA WATAUGA COUNTY DEQ - DIVISION OF WATER RESOURCES 1617 Mail Service Ctr Raleigh, NC 276991617 AFFIDAVIT OF PUBLICATION Before the undersigned, a Notary Public of said County and State, duly commissioned, quail t , and authorizebyby law to administer oaths, personally appeared c ✓u,140/A. /yl r n 7 " who being first duly sworn, deposes and says: that he (she) is an employee ofADAMS PUBLISHING GROUP, LLC, engaged in the publication of a newspaper known as Watauga Democrat, published in the city of BOONE in said County and State, that he (she) is authorized to make this affidavit and sworn statement; that the notice or other legal advertisement, a true copy of which is attached hereto, was published in Watauga Democrat, a newspaper meeting all of the requirements and qualifications of Section 1-597 of the General Statues of North Carolina on the following dates: o`,_pig M. Tr: OTAf? 1 Y Public Notice NC003062 06/16/2021 Ralau���i P.O. BOX 1815, BOONE, NC 28607 828-264-6397 This 25th day of June, 2021 Signature of person making affidavit _ air • alle Sworn to and subscribed before me on this 25th day of June, 2021 �`.•' .•'•.�k� Notary Public ��► r r f f t t t� My Commission expires: ( We> per. Public Notice North Carolina Environmental Management Commission/NPDES Unit 1617 Mall Service Center Raleigh, NC 27699-1617 Notice of Intent to Issue E NPDES Wastewater Perm! NC0020621 Jimmy Smitt WWTP The North Carolina En- vironmental Management Corn mission proposes to issue NPDES wastewater discharge permit to the persons} lister below. Written comments re ggarding the proposed permit wil be accepted until 30 days ette the publish date of this notice The Director of the NC Divisior et Water Resources (DWR) ma} hold a public hearing shoulc there be a significant degree o' public Interest. Please mail com rrients and/or information re quests to DWR at the above address, intere4ed persons may visit the DWR at 512 N. Sails bury Street, Raleigh, NC 2760z to review information on tile. Ad ditionai information on NPDEE permits and this notice may be found on our website http://deq.nc.gov/about/divi sionsiwate r-resou rces/wale r-re souregkpe rmil lwgstewater •br nch/nod es-wastewaterlpublic netices,or by calling (919) 707 3601. The own of Boone [201 Casey Lane, Boone, NC 28607 has requested renewal o NPDES permit NC0020621 fo its Jimmy Smith Wastewate Treatment Plant, located it Watauga County.This permittec facility discharges treated mu• nicipal and industrial wa.stewate to the South Fork of the Nero Rivor, a class C+ water in the New River Basin. Currently BOD, ammonia, TSS, fecal col ifor.m, dissolved oxygen, and pi - are wafer quality limited. Thi; discharge may affect future alto cations in this segment of the South Fork of the New River. OVe --� Freshwater RPA - 95% Probability/95% Confidence Using Metal Translators MAXIMUM DATA POINTS = 58 REQUIRED DATA ENTRY Table 1. Project Information 2 CHECK IF HQW OR ORW WQS Facility Name WWTP/WTP Class NPDES Permit Outfall Flow, Qw (MGD) Receiving Stream HUC Number Stream Class Jimmy Smith WWTP q IV NC0020621 001 4.820 South Fork of the New River 05050001 C:+ ❑ Apply WS Hardness WQC 7Q10s (cfs) 7Q10w (cfs) 30Q2 (cfs) QA (cfs) 1 Q10s (cfs) 9.500 14.00 20.30 59.00 7.88 Effluent Hardness Upstream Hardness Combined Hardness Chronic Combined Hardness Acute 140.19 mg/L (Avg) 25 mg/L (Avg) 75.71 mg/L 81.06 mg/L Data Source(s) ❑ CHECK TO APPLY MODEL Table 2. Parameters of Concern Par01 Par02 Par03 Par04 Par05 Par06 Par07 Par08 Par09 Par10 Par11 Par12 Par13 Par14 Par15 Par16 Par17 Par18 Par19 Par20 Par21 Par22 Par23 Par24 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 1.3624 FW 9.0388 ug/L Chlorides Aquatic Life NC 230 FW Chlorinated Phenolic Compounds Water Supply NC 1 A ug/L yTotal Phenolic Compounds Aquatic Life NC 300 A ug/L Chromium III Aquatic Life NC 291.7433 FW 2371.8343 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 20.3118 FW 31.7223 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 10.0948 FW 279.1974 ug/L Mercury Aquatic Life NC 12 FW 0.5 ng/L Molybdenum Human Health NC 2000 HH ug/L Nickel Aquatic Life NC 95.0617 FW 906.7866 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 2.2416 ug/L Zinc Aquatic Life NC 324.0512 FW 340.5707 ug/L Bis (2-ethylhexyl) phthalate Human Health C 0.37 HH pg/L Acrylonitrile Human Health C 7 HH pg/L 20621 RPA, input 6/1/2021 REASONABLE POTENTIAL ANALYSIS H1 Effluent Hardness Date Data 7/18/2017 10/6/2017 1/23/2018 4/24/2018 5/15/2018 7/10/2018 10/2/2018 1/15/2019 4/9/2019 7/23/2019 10/8/2019 1/7/2020 4/21/2020 7/13/2020 10/27/2020 1/25/2021 128 107 116 114 142 142 152 278 160 128 115 133 141 128 137 122 BDL=1/2DL 128 107 116 114 142 142 152 278 160 128 115 133 141 128 137 122 Results Std Dev. Mean C.V. n 10th Per value Average Value Max. Value Use "PASTE SPECIAL. Values" then "COPY" . Maximum data points = 58 39.4769 140.1875 0.2816 16 114.50 mg/L 140.19 mg/L 278.00 mg/L H2 Upstream Hardness -1- Date Data Defau It 25 BDL=1/2DL 25 Results 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 20621 RPA, data 5/17/2021 REASONABLE POTENTIAL ANALYSIS Par01 & Par02 Arsenic Date Data BDL=1/2DL Results 1 6/13/2017 < 5 2.5 Std Dev. 2 7/18/2017 < 5 2.5 Mean 3 10/6/2017 < 5 2.5 C.V. 4 1/23/2018 < 5 2.5 n 5 4/24/2018 < 5 2.5 6 5/15/2018 < 5 2.5 Mult Factor = 7 7/10/2018 < 5 2.5 Max. Value 8 10/2/2018 < 5 2.5 Max. Pred Cw 9 1/15/2019 < 5 2.5 10 4/9/2019 < 5 2.5 11 7/23/2019 < 5 2.5 12 10/8/2019 < 5 2.5 13 1/7/2020 < 5 2.5 14 4/21/2020 < 5 2.5 15 7/13/2020 < 5 2.5 16 10/27/2020 < 10 5 17 1/25/2021 < 10 5 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 Use "PASTE SPECIAL. Values" then "COPY" . Maximum data points = 58 0.8303 2.7941 0.2971 17 1.21 5.0 ug/L 6.1 ug/L 20621 RPA, data - 2 - 5/17/2021 REASONABLE POTENTIAL ANALYSIS Par04 Cadmium Date Data BDL=1/2DL Results 1 6/13/2017 < 2 1 Std Dev. 2 7/18/2017 < 2 1 Mean 3 10/6/2017 < 2 1 C.V. 4 1/23/2018 < 2 1 n 5 4/24/2018 < 2 1 6 5/15/2018 < 2 1 Mult Factor = 7 7/10/2018 < 2 1 Max. Value 8 10/2/2018 < 2 1 Max. Pred Cw 9 1/15/2019 < 2 1 10 4/9/2019 < 2 1 11 7/23/2019 < 2 1 12 10/8/2019 < 2 1 13 1/7/2020 < 2 1 14 4/21/2020 < 2 1 15 7/13/2020 < 2 1 16 10/27/2020 < 1 0.5 17 1/25/2021 < 1 0.5 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 Use "PASTE SPECIAL. Values" then "COPY" . Maximum data points = 58 0.1661 0.9412 0.1764 17 1.12 1.000 ug/L 1.120 ug/L Par10 Chromium, Total Date Data BDL=1/2DL Results 1 6/13/2017 < 5 2.5 Std Dev. 2 7/18/2017 < 5 2.5 Mean 3 10/6/2017 < 5 2.5 C.V. 4 1/23/2018 < 5 2.5 n 5 4/24/2018 < 5 2.5 6 5/15/2018 < 5 2.5 Mult Factor = 7 7/10/2018 < 5 2.5 Max. Value 8 10/2/2018 < 5 2.5 Max. Pred Cw 9 1/15/2019 < 5 2.5 10 4/9/2019 < 5 2.5 11 7/23/2019 < 5 2.5 12 10/8/2019 < 5 2.5 13 1/7/2020 < 5 2.5 14 4/21/2020 < 5 2.5 15 7/13/2020 < 5 2.5 16 10/27/2020 < 5 2.5 17 1/25/2021 < 5 2.5 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 Use "PASTE SPECIAL. Values" then "COPY" . Maximum data points = 58 0.0000 2.5000 0.0000 17 1.00 2.5 pg/L 2.5 pg/L 20621 RPA, data - 3 - 5/17/2021 REASONABLE POTENTIAL ANALYSIS Pall Copper Date Data BDL=1/2DL Results 1 6/13/2017 14.5 14.5 Std Dev. 2 7/18/2017 11.6 11.6 Mean 3 10/6/2017 6.93 6.93 C.V. 4 1/23/2018 7.98 7.98 n 5 4/24/2018 8.06 8.06 6 5/15/2018 12.9 12.9 Mult Factor = 7 7/10/2018 12.8 12.8 Max. Value 8 10/2/2018 11.4 11.4 Max. Pred Cw 9 1/15/2019 8 8 10 4/9/2019 10.1 10.1 11 7/23/2019 7 7 12 10/8/2019 10.3 10.3 13 1/7/2020 8 8 14 4/21/2020 8 8 15 7/13/2020 5 5 16 10/27/2020 8.9 8.9 17 1/25/2021 5.2 5.2 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 Use "PASTE SPECIAL. Values" then "COPY" . Maximum data points = 58 2.7178 9.2159 0.2949 17 1.21 14.50 ug/L 17.55 ug/L Par12 Cyanide Date Data BDL=1/2DL Results 1 7/18/2017 < 5 5 Std Dev. 2 10/3/2017 < 5 5 Mean 3 1/23/2018 < 5 5 C.V. 4 4/24/2018 < 5 5 n 5 5/15/2018 < 5 5 6 7/10/2018 < 5 5 Mult Factor = 7 10/2/2018 < 5 5 Max. Value 8 1/15/2019 < 5 5 Max. Pred Cw 9 4/9/2019 < 5.0 5 10 7/23/2019 < 5.0 5 11 10/8/2019 < 5 5 12 1/7/2020 < 5 5 13 4/21/2020 < 5 5 14 7/13/2020 < 5 5 15 10/27/2020 < 8 5 16 1/25/2021 < 8 5 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 Use "PASTE SPECIAL. Values" then "COPY" . Maximum data points = 58 0.0000 5.00 0.0000 16 1.00 5.0 ug/L 5.0 ug/L 20621 RPA, data - 4 - 5/17/2021 REASONABLE POTENTIAL ANALYSIS Par14 Lead Date 6/13/2017 7/18/2017 10/6/2017 1/23/2018 4/24/2018 5/15/2018 7/10/2018 10/2/2018 1/15/2019 4/9/2019 7/23/2019 10/8/2019 1/7/2020 4/21/2020 7/13/2020 10/27/2020 1/25/2021 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 BDL=1/2DL 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 Results Std Dev. Mean C.V. n Mult Factor = Max. Value Max. Pred Cw Use "PASTE SPECIAL. Values" then "COPY" . Maximum data points = 58 0.0000 2.5000 0.0000 17 1.00 2.500 ug/L 2.500 ug/L Par16 Molybdenum -5- Date Data 6/13/2017 6/19/2017 6/26/2017 7/3/2017 7/10/2017 7/18/2017 7/26/2017 7/27/2017 7/28/2017 7/31/2017 10/6/2017 1/23/2018 4/24/2018 5/15/2018 7/10/2018 10/2/2018 1/15/2019 4/9/2019 7/23/2019 10/8/2019 1/7/2020 4/21/2020 7/13/2020 10/27/2020 1/25/2021 6.48 5.06 6.97 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 BDL=1/2DL 6.48 5.06 6.97 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 Results Std Dev. Mean C.V. n Mult Factor = Max. Value Max. Pred Cw Use "PASTE SPECIAL. Values" then "COPY" . Maximum data points = 58 1.2504 2.9404 0.4253 25 1.19 7.0 ug/L 8.3 ug/L 20621 RPA, data 5/17/2021 REASONABLE POTENTIAL ANALYSIS Par17 & Par18 Nickel Date Data 6/13/2017 7/18/2017 10/6/2017 1/23/2018 4/24/2018 5/15/2018 7/10/2018 10/2/2018 1/15/2019 4/9/2019 7/23/2019 10/8/2019 1/7/2020 4/21/2020 7/13/2020 10/27/2020 1/25/2021 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 BDL=1/2DL 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 Results Std Dev. Mean C.V. n Mult Factor = Max. Value Max. Pred Cw Use "PASTE SPECIAL. Values" then "COPY" . Maximum data points = 58 0.0000 2.5000 0.0000 17 1.00 2.5 pg/L 2.5 pg/L Par19 Selenium Date Data 6/13/2017 7/18/2017 10/6/2017 1/23/2018 4/24/2018 5/15/2018 7/10/2018 10/2/2018 1/15/2019 4/9/2019 7/23/2019 10/8/2019 1/7/2020 4/21/2020 7/13/2020 10/27/2020 1/25/2021 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 10 10 BDL=1/2DL 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 5 5 Results Std Dev. Mean C.V. n Mult Factor = Max. Value Max. Pred Cw Use "PASTE SPECIAL -Values" then "COPY" . Maximum data points = 58 0.8303 2.7941 0.2971 17 1.21 5.0 ug/L 6.1 ug/L 20621 RPA, data - 6 - 5/17/2021 REASONABLE POTENTIAL ANALYSIS Par20 Silver Date Data 5/1/2017 5/8/2017 5/15/2017 5/22/2017 5/30/2017 6/5/2017 6/13/2017 6/19/2017 6/26/2017 7/3/2017 7/10/2017 7/18/2017 10/6/2017 1/23/2018 4/24/2018 5/15/2018 7/10/2018 10/2/2018 1/15/2019 4/9/2019 7/23/2019 10/8/2019 1/7/2020 4/21/2020 7/13/2020 10/27/2020 1/25/2021 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0.4 0.4 BDL=1/2DL 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.2 0.2 Results Std Dev. Mean C.V. n Mult Factor = Max. Value Max. Pred Cw Use "PASTE SPECIAL. Values" then "COPY" . Maximum data points = 58 0.0801 0.4778 0.1676 27 1.07 0.500 ug/L 0.535 ug/L Par21 Zinc -7- Date Data 6/13/2017 7/18/2017 10/6/2017 1/23/2018 4/24/2018 5/15/2018 7/10/2018 10/2/2018 1/15/2019 4/9/2019 7/23/2019 10/8/2019 1/7/2020 4/21/2020 7/13/2020 10/27/2020 1/25/2021 106 43.1 48.6 53.1 45.2 41.1 79.2 42.5 43 49.7 50 61.3 51 35 34 38.3 61.6 BDL=1/2DL 106 43.1 48.6 53.1 45.2 41.1 79.2 42.5 43 49.7 50 61.3 51 35 34 38.3 61.6 Results Std Dev. Mean C.V. n Mult Factor = Max. Value Max. Pred Cw Use "PASTE SPECIAL. Values" then "COPY" . Maximum data points = 58 17.8074 51.9235 0.3430 17 1.24 106.0 ug/L 131.4 ug/L 20621 RPA, data 5/17/2021 REASONABLE POTENTIAL ANALYSIS Par22 Bis (2-ethylhexyl) phthalate Date Data 1/23/2018 4/24/2018 5/15/2018 7/10/2018 10/2/2018 1/15/2019 4/9/2019 7/23/2019 10/8/2019 1/7/2020 4/21/2020 7/13/2020 11/12/2020 1/25/2021 10 10 10 10 10 10 10 10 10 10 10 10 5 5 BDL=1/2DL 5 5 5 5 5 5 5 5 5 5 5 5 2.5 2.5 Results Std Dev. Mean C.V. n Mult Factor = Max. Value Max. Pred Cw Use "PASTE SPECIAL - Values" then "COPY" . Maximum data points = 58 Par23 Acrylonitrile 0.9078 4.6429 0.1955 14 1.16 5.0 pg/L 5.8 pg/L Date Data 7/10/2018 < 4/11/2019 1/7/2020 < 100 887 100 BDL=1/2DL 50 887 50 Results Std Dev. Mean C.V. (default) n Mult Factor = Max. Value Max. Pred Cw Use "PASTE SPECIAL -Values" then "COPY" . Maximum data points = 58 483.2422 329.0 0.6 3 3.00 887 pg/L 2661 pg/L 20621 RPA, data - 8 - 5/17/2021 Jimmy Smith WWTP NCOO2O621 Freshwater RPA - 95% Probability/95% Confidence Using Metal Translators MAXIMUM DATA POINTS = 58 Qw (MGD) = 4.8200 1Q10S (cfs) = 7.88 7Q10S (cfs) = 9.50 7Q10W (cfs) = 14.00 30Q2 (cfs) = 20.30 Avg. Stream Flow, QA (cfs) = 59.00 Receiving Stream: South Fork of the New River HUC 05050001 WWTP/WTP Class: IV IWC% @ 1Q10S = 48.66783923 IWC% @ 7Q10S = 44.02215544 IWC% @ 7Q10W = 34.79577104 IWC% @ 30Q2 = 26.90216413 IW%C @ QA = 11.2394879 Stream Class: C:+ Outfall 001 Qw = 4.82 MGD YOU HAVE DESIGNATED THIS RECEIVING STREAM AS HQW OR ORW COMBINED HARDNESS (mg/L) Acute = 81.06 mg/L Chronic = 75.71 mg/L PARAMETER TYPE NC STANDARDS OR EPA CRITERIA _1 = REASONABLE POTENTIAL RESULTS RECOMMENDED ACTION Chronic Stapda d Acute n # Det. Max Pred Cw Allowable Cw Arsenic Arsenic C C 75 5 FW(7Q10s) EIH/WS(Qavg) 170 ug/L ug/L 17 0 6.1 NO DETECTS Acute (FW): 349.3 _ _ _ _ _ _ Chronic (FW)-------- Max MDL = 10 ____ _____ Chronic (HH): 44.5 Max MDL = 10 ----------------------------- _ _ _ _ _ _ _ _ _ _ _ _ _ _ No RP, Predicted Max < 50% of Allowable Cw - No Monitoring required Cadmium NC 0.6812 FW(7Q10s) 4.5194 ug/L 17 0 1.120 NO DETECTS Acute: 9.286 Chronic: 1.547 Max MDL = 2 All non -detects < 2 ug/L and < 1 ug/L- No Monitoring required Chromium III NC 145.8716 FW(7Q10s) 1185.9172 µg/L 0 0 N/A Acute: 2,436.8 --_ _ ----_ _ --331.4-------------------------------- Chronic: Chromium VI NC 6 FW(7Q10s) 8 µg/L 0 0 N/A Acute: 16.4 --_ _ _ - _ -Chronic: ----- --- 125 ----------------------------- Chromium, Total NC µg/L 17 0 2.5 NO DETECTS Max reported value = 2.5 Max MDL = 5 a: No monitoring required if all Total Chromium samples are < 5 pg/L or Pred. max for Total Cr is < allowable Cw for Cr VI. Copper NC 10.1559 FW(7Q10s) 15.8611 ug/L 17 17 17.55_____ Acute: 32.59 Chronic: 23.07 No value > Allowable Cw No RP , Predicted Max >_ 50% of Allowable Cw - apply Quarterly Monitoring Cyanide NC 2.5 FW(7Q10s) 11 10 ug/L 16 0 5.0 NO DETECTS Acute: 22.6 ____ _ ____________ Chronic: 5.7 Max MDL = 10 _ _ _ _ _ _ _ _ _ _ _ _ _ _ All non -detect < 8 ug/L and < 5 ug/L - No Monitoring required Lead NC 5.0474 FW(7Q10s) 139.5987 ug/L 17 0 2.500 NO DETECTS Acute: 286.840 Chronic: 11.466 Max MDL = 5 No RP, Predicted Max < 50% of Allowable Cw - No Monitoring required Nickel Nickel NC NC 47.5308 12.5000 FW(7Q10s) WS(7Q10s) 453.3933 µg/L µg/L 17 0 2.5 NO DETECTS Acute (FW): 931.6 _ _ _ _ _ _ _ _ _ _ _ _ _ Chronic (FW): 108.0 Max MDL = 5 Chronic (WS): 28.4 Max MDL = 5 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ No RP, Predicted Max < 50% of Allowable Cw - No Monitoring required Page 1 of 2 20621 RPA, rpa 6/1/2021 Jimmy Smith WWTP NC0020621 Selenium NC Freshwater RPA - 95% Probability/95% Confidence Using Metal Translators Acute: 2.5 FW(7Q10s) 28 ug/L 17 0 6.1 57.5 Chronic: 5.7 NO DETECTS Max MDL = 10 Silver NC 0.03 FW(7Q10s) 1.1208 ug/L 27 0 0.535 NO DETECTS Acute: 2.303 Chronic: 0.068 Max MDL = 1 Zinc NC 162.0256 FW(7Q10s) 170.2853 ug/L 17 17 131.4 Acute: 349.9 Chronic: 368.1 No value > Allowable Cw Bis (2-ethylhexyl) phthalate 0.185 HH(Qavg) µg/L 14 0 5.80000 NO DETECTS Acute: NO WQS Chronic: 1.646 Max MDL = 10 Acrylonitrile 3.5 HH(Qavg) µg/L 3 1 Note: n < 9 Limited data set 2,661.00000 C.V. (default) Acute: NO WQS Chronic: 31.14021 3 value(s) > Allowable Cw Outfall 001 Qw = 4.82 MGD All non -detect < 10 ug/L and < 5 ug/L - No Monitoring required All values reported non -detect < 1 ug/L and < 0.4 ug/L - No monitoring required. No RP, Predicted Max < 50% of Allowable Cw - No Monitoring required All non -detect < 10 ug/L and < 5 ug/L - No Monitoring required RP for Limited Dataset (n<8 samples) - apply Quarterly Monitoring Page 2 of 2 20621 RPA, rpa 6/1/2021 NC0020621 Jimmy Smith WWTP 5/25/2021 BOD monthly removal rate Month RR (%) Month RR (%) May-17 June-17 July-17 August-17 September-17 October-17 November-17 December-17 January-18 February-18 March-18 April-18 May-18 June-18 July-18 August-18 September-18 October-18 November-18 December-18 January-19 February-19 March-19 April-19 May-19 June-19 July-19 August-19 September-19 October-19 99.46 99.54 99.53 99.51 99.52 99.45 99.46 99.55 99.46 99.50 99.42 99.37 99.40 99.47 99.41 99.36 99.37 99.32 99.34 99.24 99.27 99.36 99.41 99.39 99.45 99.34 99.49 99.49 99.46 99.50 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 July-21 August-21 September-21 October-21 November-21 December-21 January-22 February-22 March-22 April-22 Overall BOD removal rate 99.49 99.42 99.37 99.34 99.33 99.21 99.10 99.38 99.30 99.32 99.28 99.38 99.35 99.29 99.23 99.32 99.40 99.39 TSS monthly removal rate Month RR (%) Month RR (%) May-17 June-17 July-17 August-17 September-17 October-17 November-17 December-17 January-18 February-18 March-18 April-18 May-18 June-18 July-18 August-18 September-18 October-18 November-18 December-18 January-19 February-19 March-19 April-19 May-19 June-19 July-19 August-19 September-19 October-19 99.22 99.27 99.47 99.34 99.32 99.16 99.15 99.28 99.15 99.42 99.17 99.25 99.35 99.51 99.11 99.15 99.15 98.91 98.91 98.82 98.71 99.05 99.12 99.20 99.25 99.01 99.22 99.21 99.17 99.16 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 July-21 August-21 September-21 October-21 November-21 December-21 January-22 February-22 March-22 April-22 Overall TSSD removal rate 99.12 98.89 98.88 98.97 98.91 99.05 98.83 99.50 99.21 99.12 99.10 99.21 99.20 98.93 98.88 98.97 99.11 99.13 Permit No. NC0020621 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 April6, 2016, with some exceptions. Therefore, metal limits in draft permits out to public notice after April6, 2016 must be calculated to protect the new standards - as approved. Table 1. NC Dissolved Metals Water Quality Standards/Aquatic Life Protection Parameter Acute FW, µg/1 (Dissolved) Chronic FW, 14/1 (Dissolved) Acute SW, 14/1 (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*{1.1366724ln hardness](0.041838)} • e^{0.9151 [ln hardness]-3.1485} Cadmium, Acute Trout waters WER*{1.136672-[ln hardness](0.041838)} • e^{0.9151[ln hardness]-3.6236} Cadmium, Chronic WER* { 1.101672-[ln hardness](0.041838)} • e^{0.7998[ln hardness]-4.4451 } 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*{1.462034ln hardness](0.145712)} • e^{1.273[In hardness]-1.460} Lead, Chronic WER*{1.46203-[ln hardness](0.145712)} • e^{1.273[In 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. NC0020621 Silver, Acute WER*0.85 • e^{1.72[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/WQBELs 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. 1. 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 1Q10 using the formula 1Q10 = 0.843 (s7Q10, 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. NC0020621 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 + s7Q10, cfs) The Combined Hardness for acute is the same but the calculation uses the 1Q10 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 1 + { [Kpo] [SS(1 +1 [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 = (s7Q10 + Qw) (Cwqs) — (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 s7Q10) s7Q10 = 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 s7Q10 may be incorporated as applicable: 1Q10 = used in the equation to protect aquatic life from acute toxicity Page 3 of 4 Permit No. NC0020621 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. 8. 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)] 140.19 Based on DMR values Average Upstream Hardness (mg/L) [Total as, CaCO3 or (Ca+Mg)] 25 Default value used 7Q10 summer (cfs) 9.5 NPDES Files 1Q10 (cfs) 7.88 Calculated in RPA Permitted Flow (MGD) 4.82 NPDES Files Date: 5/17/2021 Permit Writer: Nick Coco Page 4 of 4 5/17/21 WQS = 6 ng/L Facility Name Johnny Smith WWTP/NC0020621 /Permit No. : MERCURY WQBEL/TBEL EVALUATION V:2013-6 Total Mercury 1631E PQL = 0.5 ng/L 7Q10s = Date Modifier Data Entry Value Permitted Flow = 6/13/17 7/18/17 10/3/17 1/23/18 5/15/18 7/10/18 10/4/18 1/15/19 4/9/19 7/25/19 10/11/19 2/25/20 5/13/20 7/13/20 10/27/20 1/25/21 < < 1.25 1.79 7.43 1.69 1.18 1.16 3.22 6.36 5.48 5.17 1 1.12 2.81 3.75 1 5.55 No Limit Required MMP Required 1.25 1.79 7.43 1.69 1.18 1.16 3.22 6.36 5.48 5.17 0.5 1.12 2.81 3.75 0.5 5.55 9.500 4.820 cfs WQBEL = 13.63 ng/L 47 ng/L 3.5 ng/L - Annual Average for 2017 1.8 ng/L - Annual Average for 2018 4.4 ng/L - Annual Average for 2019 2.0 ng/L - Annual Average for 2020 5.6 ng/L - Annual Average for 2021 Johnny Smith WWTP/NC0020621 Mercury Data Statistics (Method 1631E) 2017 2018 2019 2020 # of Samples 3 4 4 4 Annual Average, ng/L 3.5 1.8 4.4 2.05 Maximum Value, ng/L 7.43 3.22 6.36 3.75 TBEL, ng/L 47 WQBEL, ng/L 13.6 2021 1 5.55 5.55 NH3/TRC WLA Calculations Facility: Jimmy Smith WWTP PermitNo. NC0020621 Prepared By: Nick Coco Enter Design Flow (MGD): 4.82 Enter s7Q10 (cfs): 9.5 Enter w7Q10 (cfs): 14 Total Residual Chlorine (TRC) Daily Maximum Limit (ug/I) s7Q10 (CFS) DESIGN FLOW (MGD) DESIGN FLOW (CFS) STREAM STD (UG/L) Upstream Bkgd (ug/I) IWC (%) Allowable Conc. (ug/I) Fecal Coliform Monthly Average Limit: (If DF >331; Monitor) (If DF<331; Limit) Dilution Factor (DF) 9.5 4.82 7.471 17.0 0 44.02 39 UV disinfection used. No limit. Ammonia (Summer) Monthly Average Limit (mg NH3-N/I) s7Q10 (CFS) 9.5 DESIGN FLOW (MGD) 4.82 DESIGN FLOW (CFS) 7.471 STREAM STD (MG/L) 1.0 Upstream Bkgd (mg/I) 0.22 IWC (%) 44.02 Allowable Conc. (mg/I) 2.0 Consistent with current limit. Maintain limit. Ammonia (Winter) Monthly Average Limit (mg NH3-N/I) w7Q10 (CFS) 14 200/100mI DESIGN FLOW (MGD) 4.82 DESIGN FLOW (CFS) 7.471 STREAM STD (MG/L) 1.8 2.27 Upstream Bkgd (mg/I) 0.22 IWC (%) 34.80 Allowable Conc. (mg/I) 4.8 Consistent with current limit. Maintain limit. Total Residual Chlorine 1. Cap Daily Max limit at 28 ug/I to protect for acute toxicity Ammonia (as NH3-N) 1. If Allowable Conc > 35 mg/I, Monitor Only 2. Monthly Avg limit x 3 = Weekly Avg limit (Municipals) 3. Monthly Avg limit x 5 = Daily Max limit (Non-Munis) If the allowable ammonia concentration is > 35 mg/L, no limit shall be imposed Fecal Coliform 1. Monthly Avg limit x 2 = 400/100 ml = Weekly Avg limit (Municipals) = Daily Max limit (Non -Muni) Town ofBoone Bo ONE North Carolina Email: nick.coco@ncdenr.gov June 2, 2021 Mr. Nick Coco Division of Water Resources Water Quality Permitting Section - NPDES 1617 Mail Service Center Raleigh, NC 27699-1617 Subject: NC0020621 NPDES renewal —Request to reduce monitoring frequency Dear Mr. Coco: Town of Boone's Jimmy Smith WWTP effluent meets the criteria listed in DWQ's Guidance Regarding the Reduction of Monitoring Frequencies in NPDES Permits for Exceptionally Performing Facilities. The Town requests that consideration for reduced monitoring for the four target parameters (BOD5, TSS, NH3- N and fecal coliform) be made during the permit renewal process. • No civil penalty for permit limit violations for each target parameter during the previous three years • No permittee or employee has been convicted of criminal violations of the CWA during the previous five years • No SOC in place for target parameters at this facility • Facility is not on EPA's quarterly noncompliance report for any target parameter limit violations • Each target parameters' three-year arithmetic or geometric mean is less than 50% of the applicable monthly average limit (see data provided) • All target parameter daily sample data are below 200% the applicable monthly average limit except two fecal coliform samples (see data provided) • All target parameter daily sample data are below the applicable weekly average limit except one fecal conform sample (see data provided) • Reduced effluent monitoring is not anticipated to impair assessment of sensitive downstream uses since the plant will continue to operate as it has previously and will likely continue to monitor at the usual level during most of the year Please contact me at 828/268-6250 or by email at rick.miller@townofboone.net, or Karen Reece at 828/268-6272 or by email at karen.reece@townofboone.net if you need more information. Sincerely, icky L. Miller Director of Public Works ec: Karen Reece, Lab Supervisor/Pretreatment Coordinator Rudy Broschinski, Plant Superintendent Josh Eller, Deputy Director of Public Works P.O. DRAWER 192 • BOONE, NORTH CAROLINA 28607 Reduction in Frequency Evalaution Facility: Jimmy Smith WWTP Permit No. NC0020621 Review period (use 3 yrs) 3/2018 3/2021 Approval Criteria: Y/N? 1. Not currently under SOS Y 2. Not on EPA Quarterly noncompliance report Y 3. Facility or employees convicted of CWA violations N Data Review Units Weekly average limit Monthly average limit 50% MA 3-yr mean (geo mean for FC) < 50%? 200% MA # daily samples >200% <15? 200% WA # daily samples >200% < 20? # of non - monthly limit violations > 2? # civil penalty asessment > 1? Reduce Frequency? (Yes/No) BOD (summer) mg/L 7.5 5 2.5 1.0752784 Y 10 0 Y 0 N 0 N Y BOD (winter) mg/L 15 10 5 1.0865625 Y 20 0 Y 0 N 0 N Y TSS mg/L 30 20 10 1.2540312 Y 40 0 Y 0 N 0 N Y Ammonia (summer) mg/L 6 2 1 0.1393818 Y 4 1 Y 0 N 0 N Y Ammonia (winter) mg/L 12 4 2 0.0792157 Y 8 0 Y 0 N 0 N Y Fecal Coliform #/100 400 200 100 1.4912182 Y 800 1 Y 0 N 0 N Y NPDES/Aquifer Protection Permitting Unit Pretreatment Information Request Form PERMIT WRITER COMPLETES THIS PART: PERMIT WRITERS - AFTER you get this form back Check all that apply from PERCS: - Notify PERCS if LTMP/STMP data we said should Date of Request 5/25/2021 municipal renewal X be on DMRs is not really there, so we can get it for Requestor Nick Coco new industries you (or NOV POTW). Facility Name Jimmy Smith WWTP WWTP expansion - Notify PERCS if you want us to keep a specific POC Permit Number NC0020621 Speculative limits in LTMP/STMP so you will have data for next permit ReRegion g Winston-Salem stream reclass. renewal. - Email PERCS draft permit, fact sheet, RPA. Basin New River outfall relocation - Send PERCS paper copy of permit (w/o NPDES 7Q10 change boilerplate), cover letter, final fact sheet. Email RPA if other changes. other check applicable PERCS staff: Other Comments to PERCS: Permitted flow of 4.82 MGD with 2 SIUs BRD, CPF, CTB, FRB, TAR listed in application -I CHO, HIW, LTN, LUM, NES, NEW, ROA, YAD PERCS PRETREATMENT STAFF COMPLETES THIS PART: Status of Pretreatment Program (check all that apply) 1) facility has no SIU's, does have Division approved Pretreatment Program that is INACTIVE 2) facility has no SIU's, does not have Division approved Pretreatment Program -I 3) facility has SIUs and DWQ approved Pretreatment Program (list "DEV" if program still under development) Al 3a) Full Program with LTMP 3b) Modified Program with STMP 4) additional conditions regarding Pretreatment attached or listed below Flow, MGD Permitted Actual Time period for Actual STMP time frame: Industrial 0.165 0.0095 2017 Most recent: Uncontrollable n/a 2.3101 2017 Next Cycle: POC in LTMP/ STM P Parameter of Concern (POC) Check List POC due to NPDES/ Non- Disch Permit Limit Required by EPA* Required by 503 Sludge** POC due to SIU*** POTW POC (Explain below)**** STMP Effluent Freq LTMP Effluent Freq BOD -I -I 4 Q M TSS -I -I 4 Q M Q = Quarterly NH3 -I 4 Q M M = Monthly Arsenic Al 4 Q M Al Cadmium Al Al Al 4 Q M Al Chromium Al Al 4 Q M Al Copper Al Al Al 4 Q M Cyanide -I 4 Q M Is all data on DMRs? Al Lead Al Al Al 4 Q M YES Mercury Al 4 Q M NO (attach data) Molybdenum Al 4 Q M Al Nickel Al Al Al 4 Q M Silver -I 4 Q M Selenium Al 4 Q M Al Zinc Al Al Al 4 Q M Is data in spreadsheet? Total Nitrogen 4 Q M YES (email to writer) Phosphorus 4 Q M NO 4 Q M 4 Q M 4 Q M 4 Q M *Always in the LTMP/STMP ** Only in LTMP/STMP if sludge land app or composte (dif POCs for incinerators) *** Only in LTMP/STMP while SIU still discharges to POTW **** Only in LTMP/STMP when pollutant is still of concern to POTW Comments to Permit Writer (ex., explanation of any POCs; info you have on IU related investigations into NPDES problems): NC0020621-PERC NPDES_Pretreatment.request.form.may2016 Revised: July 24, 2007 Whole Effluent Toxicity Testing and Self Monitoring Summary Black Creek Terminal, LLC NC0089087/001 County: Wilson Region: RRO Basin: NEU07 Jan Apr Jul Oct Fthd24PF Begin: 1/1/2019 Ac P/F Monit: 90% Ft NonComp: 7Q10: PF: IWC: Freq: A SOC JOC: 2017 2018 2019 2020 J H H F M A M l J A 5 0 N D H H - - H - - - H H H HH H - - H - - - Bladen Bluffs Regional Surf. WTP NC0088781/001 County: Bladen Region: FRO Basin: CPF15 Fthd24PF Begin: 8/4/2017 Acu Fthd PF Monit: 9 NonComp: 7Q10: PF: IWC: Freq: A SOC JOC: J 2017 F M A M J J A 5 0 N D Pass - - Pass - - Pass - - - Blowing Rock WWTP NC0027286/001 Ceri7dPF Begin: 12/1/2012 chr lim: 61% County: Watauga NonComp: Single Region: WSRO 7Q10: 0.80 Basin: NEW01 Jan Apr Jul Oct PF: 0.80 IWC: 60.78 Freq: Q SOC_JOC: J F M A M J J A S 0 N D 2017 Pass - - Pass - - Pass - - Pass - 2018 Pass - - Pass - - Pass - - Pass - 2019 Pass - - Pass - - Pass - - Pass - 2020 Pass - - Pass - - Pass - - Pass - 2021 Fail Pass >100 92.2 - - - - - Blue Ridge Paper- Evergreen Pkg NC0000272/001 Cer7dChV Begin: 7/1/2010 chr lim: 90% County: Haywood NonComp: Single Region: ARO 7Q10: 52 Basin: FRB05 Mar Jun Sep Dec PF: 29.9 IWC: 100 Freq: Q SOC JOC: J F M A M J J A 5 0 N D 2017 - - 92.5 - - 97.5 - - 97.5 - - >100 2018 - - >100 - - >100 - - >100 - - >100 2019 - - >100 - - >100 - - >100 - - >100 2020 - - >100 - - >100 - - >100(P) - - >100 (P) 2021 - - >100(P) - - - - - - Bogue Banks WTP NC0083089/001 County: Carteret Region: WIRO Basin: WOK01 Feb May Aug Nov Mysd7dPF Begin: 1/1/2018 Mysid Chr P/F Monit: NonComp: 7Q10: PF: 0.480 IWC: Freq: Q SOC JOC: J 2017 2018 2019 2020 2021 F Pass Pass H Pass Pass M A Pass M J J A 5 0 N Pass - - Pass - - Pass Pass - - Pass - - Pass Pass - - Pass - - Pass Pass - - >20(P) - - Pass Boone WWTP (Jimmy Smith WWTP) NC0020621/001 Ceri7dPF Begin: 5/1/2017 chr lim: 44% County: Watauga NonComp: Single Region: WSRO 7Q10: 9.5 Basin: NEW01 Jan Apr Jul Oct PF: 4.82 IWC: 44.0 Freq: Q SOC_JOC: J 2017 2018 Pass 2019 Pass 2020 Pass>88(P) 2021 Pass F M A M J J A 5 0 N D Pass - Pass Pass - - Pass >100(P) - H Pass Pass >88(P) - - Pass - - Pass - - Pass - - Pass - - Pass - - Pass - - Pass - - Pass - - - - - Legend: P= Fathead minnow (Pimphales promelas), H=No Flow (facility is active), s = Split test between Certified Labs Page 10 of 119 United States Environmental Protection Agency E PA Washington, D.C. 20460 Water Compliance Inspection Report Form Approved. OMB No. 2040-0057 Approval expires 8-31-98 Section A: National Data System Coding (i.e., PCS) Transaction Code NPDES yr/mo/day Inspection 1 IN 2 I5 �-I 3 I NC0020621 111 121 21/05/13 117 Type 18 [ l l I i i Inspector Fac Type 19 G I 201 211111 1 1i i l l s ii i i i I I i i i l i l i i l B i i ii i i i i i 166 Inspection Work Days Facility Self -Monitoring Evaluation Rating B1 QA Reserved 671I 7° I I 711I 72 I N I 73I I 174 L� 1 751 I I I I I I 180 Section B: Facility Data Name and Location of Facility Inspected (For Industrial Users discharging to POTW, also include POTW name and NPDES permit Number) Jimmy Smith WWTP 201 Casey Ln Boone NC 28607 Entry Time/Date 10:30AM 21/05/13 Permit Effective Date 17/05/01 Exit Time/Date 02:30PM 21/05/13 Permit Expiration Date 21/03/31 Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s) /// Rudolph E Broschinski/ORC/828-268-6271/ Other Facility Data Name, Address of Responsible Official/Title/Phone and Fax Number Contacted George M Sudderth,PO Drawer 192 Boone NC 286070192//828-262-4530/ No Section C: Areas Evaluated During Inspection (Check only those areas evaluated) Permit Flow Measurement Operations & Maintenar Records/Reports Self -Monitoring Progran Sludge Handling Dispos 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 Ron Boone DWR/WSRO WQ/336-776-9690/ 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# 1 31 NPDES yr/mo/day N C 0 02 0621 111 121 21 /0 5/ 13 117 Inspection Type 18 [j (Cont.) 1 Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary) Mr. Broschinski indicated that when plant was hydraulically upgraded, the digesters were not. So, although they can handle their current sludge production in the aerated digisters, they may not be able to in the future if their flows do increase. Mr. Broschinski stated there is no backup disinfection system. He indicated they could not use chlorine. Mr. Broschinski stated they do NOT have an emergency contract with fuel vendor (priority status during emergencies). Such an arrangement should be established. Page# 2 Permit: NC0020621 Owner - Facility: Jimmy Smith \NTP Inspection Date: 05/13/2021 Inspection Type: Compliance Evaluation Laboratory Yes No NA NE Are field parameters performed by certified personnel or laboratory? • ❑ ❑ ❑ Are all other parameters(excluding field parameters) performed by a certified lab? • ❑ ❑ ❑ # Is the facility using a contract lab? • ❑ ❑ ❑ # Is proper temperature set for sample storage (kept at less than or equal to 6.0 • ❑ ❑ ❑ degrees Celsius)? Incubator (Fecal Coliform) set to 44.5 degrees Celsius+/- 0.2 degrees? ❑ ❑ ❑ • Incubator (BOD) set to 20.0 degrees Celsius +/- 1.0 degrees? ❑ ❑ ❑ • Comment: None Influent Sampling # Is composite sampling flow proportional? Is sample collected above side streams? Is proper volume collected? Is the tubing clean? # Is proper temperature set for sample storage (kept at less than or equal to 6.0 degrees Celsius)? Is sampling performed according to the permit? Comment: None Effluent Sampling Is composite sampling flow proportional? Is sample collected below all treatment units? Is proper volume collected? Is the tubing clean? # Is proper temperature set for sample storage (kept at less than or equal to 6.0 degrees Celsius)? Is the facility sampling performed as required by the permit (frequency, sampling type representative)? Comment: None Upstream / Downstream Sampling Is the facility sampling performed as required by the permit (frequency, sampling type, and sampling location)? Comment: None Yes No NA NE • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ Yes No NA NE • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ Yes No NA NE • ❑ • ❑ Page# 3 Permit: NC0020621 Owner - Facility: Jimmy Smith VVVVTP Inspection Date: 05/13/2021 Inspection Type: Compliance Evaluation Record Keeping Are records kept and maintained as required by the permit? Is all required information readily available, complete and current? Are all records maintained for 3 years (lab. reg. required 5 years)? Are analytical results consistent with data reported on DMRs? Is the chain -of -custody complete? Dates, times and location of sampling Name of individual performing the sampling Results of analysis and calibration Dates of analysis Name of person performing analyses Transported COCs Are DMRs complete: do they include all permit parameters? Has the facility submitted its annual compliance report to users and DWQ? (If the facility is = or > 5 MGD permitted flow) Do they operate 24/7 with a certified operator on each shift? Is the ORC visitation log available and current? Is the ORC certified at grade equal to or higher than the facility classification? Is the backup operator certified at one grade less or greater than the facility classification? Is a copy of the current NPDES permit available on site? Facility has copy of previous year's Annual Report on file for review? Comment: None Yes No NA NE • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • • • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ 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? ❑ • ❑ ❑ Is access to the plant site restricted to the general public? • ❑ ❑ ❑ Is the inspector granted access to all areas for inspection? • ❑ ❑ ❑ Comment: Plant description says there are drying beds in use. There haven't been drying beds in use for a very long time. Pump Station - Influent Is the pump wet well free of bypass lines or structures? • Yes No NA NE ❑ ❑ ❑ Page# 4 Permit: NC0020621 Owner - Facility: Jimmy Smith VVVVTP Inspection Date: 05/13/2021 Inspection Type: Compliance Evaluation Pump Station - Influent Yes No NA NE Is the wet well free of excessive grease? Are all pumps present? Are all pumps operable? Are float controls operable? Is SCADA telemetry available and operational? Is audible and visual alarm available and operational? • ❑ ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ Comment: One pump is out for repair but other pumps can handle the flow and there is a backup pump station for additional capacity as well. Flow Measurement - Influent # Is flow meter used for reporting? Is flow meter calibrated annually? Is the flow meter operational? (If units are separated) Does the chart recorder match the flow meter? Yes No NA NE ❑ • ❑ ❑ ❑ • ❑ ❑ • ❑ ❑ ❑ ❑ ❑ ❑ • Comment: Meter should be calibrated because it's used to pace the sampler for flowpro sampling. Equalization Basins Is the basin aerated? Is the basin free of bypass lines or structures to the natural environment? Is the basin free of excessive grease? Are all pumps present? Are all pumps operable? Are float controls operable? Are audible and visual alarms operable? # Is basin size/volume adequate? Comment: None Bar Screens Type of bar screen a.Manual b.Mechanical Are the bars adequately screening debris? Is the screen free of excessive debris? Yes No NA NE • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ Yes No NA NE • • ❑ ❑ ❑ • ❑ ❑ ❑ Page# 5 Permit: NC0020621 Owner - Facility: Jimmy Smith \NTP Inspection Date: 05/13/2021 Inspection Type: Compliance Evaluation Bar Screens Yes No NA NE Is disposal of screening in compliance? • ❑ ❑ ❑ Is the unit in good condition? • ❑ ❑ ❑ Comment: Screenings landfilled. Grit Removal Type of grit removal a.Manual b.Mechanical Is the grit free of excessive organic matter? Is the grit free of excessive odor? # Is disposal of grit in compliance? Comment: Grit is also landfilled. Oxidation Ditches Are the aerators operational? Are the aerators free of excessive solids build up? # Is the foam the proper color for the treatment process? Does the foam cover less than 25% of the basin's surface? Is the DO level acceptable? Are settleometer results acceptable (> 30 minutes)? Is the DO level acceptable?(1.0 to 3.0 mg/I) Are settelometer results acceptable?(400 to 800 ml/I in 30 minutes) Yes No NA NE • • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ Yes No NA NE • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ ❑ • ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ • • ❑ ❑ ❑ • ❑ ❑ ❑ Comment: DO was 2.78mci/I during inspection...taken from installed meter. Foam covered more than 50% of surface area. Mixed liquor looked good. No foul odor. Earthy odor. They keep MLSS at about 3,500 but wasn't measured during inspection. 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? Yes No NA NE • ❑ ❑ ❑ ❑ • ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ Page# 6 Permit: NC0020621 Owner - Facility: Jimmy Smith VVVVTP Inspection Date: 05/13/2021 Inspection Type: Compliance Evaluation Secondary Clarifier 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: Sludge blankets normally around 3'. Center well has quite a bit of solids in it but it's under control and doesn't appear to be effecting the process any. Pumps-RAS-WAS Are pumps in place? Are pumps operational? Are there adequate spare parts and supplies on site? Comment: None Filtration (High Rate Tertiary) Type of operation: Is the filter media present? Is the filter surface free of clogging? Is the filter free of growth? Is the air scour operational? Is the scouring acceptable? Is the clear well free of excessive solids and filter media? Comment: None Disinfection - UV Are extra UV bulbs available on site? Are UV bulbs clean? Is UV intensity adequate? Is transmittance at or above designed level? Is there a backup system on site? Is effluent clear and free of solids? Comment: ORC stated there is no backup disinfection system on site. Flow Measurement - Effluent # Is flow meter used for reporting? Yes No NA NE • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ Yes No NA NE Down flow • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ Yes No NA NE • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ ❑ • ❑ ❑ • ❑ ❑ ❑ Yes No NA NE • ❑ ❑ ❑ Page# 7 Permit: NC0020621 Owner - Facility: Jimmy Smith VVVVTP Inspection Date: 05/13/2021 Inspection Type: Compliance Evaluation Flow Measurement - Effluent Yes No NA NE Is flow meter calibrated annually? Is the flow meter operational? (If units are separated) Does the chart recorder match the flow meter? ■ ❑ ❑ ❑ • ❑ ❑ ❑ ❑ ❑ • ❑ Comment: Meter reports to SCADA. It is an ISCO 3010 and was last calibrated on 3/24/2021. Effluent Pipe Is right of way to the outfall properly maintained? Are the receiving water free of foam other than trace amounts and other debris? If effluent (diffuser pipes are required) are they operating properly? Comment: None Aerobic Digester Is the capacity adequate? Is the mixing adequate? Is the site free of excessive foaming in the tank? # Is the odor acceptable? # Is tankage available for properly waste sludge? Comment: None Solids Handling Equipment Is the equipment operational? Is the chemical feed equipment operational? Is storage adequate? Is the site free of high level of solids in filtrate from filter presses or vacuum filters? Is the site free of sludge buildup on belts and/or rollers of filter press? Is the site free of excessive moisture in belt filter press sludge cake? The facility has an approved sludge management plan? Comment: None Chemical Feed Is containment adequate? Is storage adequate? Are backup pumps available? Yes No NA NE • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ Yes No NA NE • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ Yes No NA NE • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ ❑ ❑ ❑ • Yes No NA NE • ❑ ❑ ❑ • ❑ ❑ ❑ ❑ ❑ ❑ • Page# 8 Permit: NC0020621 Owner - Facility: Jimmy Smith VVVVTP Inspection Date: 05/13/2021 Inspection Type: Compliance Evaluation Chemical Feed Is the site free of excessive leaking? Comment: None Drying Beds Is there adequate drying bed space? Is the sludge distribution on drying beds appropriate? Are the drying beds free of vegetation? # Is the site free of dry sludge remaining in beds? Is the site free of stockpiled sludge? Is the filtrate from sludge drying beds returned to the front of the plant? # Is the sludge disposed of through county landfill? # Is the sludge land applied? (Vacuum filters) Is polymer mixing adequate? Yes No NA NE • ❑ ❑ ❑ Yes No NA NE ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ Comment: The facility no longer uses drying beds. Drying beds should be removed from the permit's plant description. 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? Comment: Please develop a written emergency agreement with a local fuel vendor. Operations & Maintenance Is the plant generally clean with acceptable housekeeping? Does the facility analyze process control parameters, for ex: MLSS, MCRT, Settleable Solids, pH, DO, Sludge Judge, and other that are applicable? Comment: None Yes No NA NE • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ ❑ • ❑ ❑ • ❑ ❑ ❑ ❑ • ❑ ❑ • ❑ ❑ ❑ Yes No NA NE ❑ ❑ ❑ ❑ ❑ ❑ Page# 9 ffluent Toxicity Report Form -Chronic Fathead Minnow Multi -Concentration Test Date:12/15/2016 Facility: Town Of Boone NPDES # NC00 20621 Pipe #: 001 County: Watauga aborato Research & analytical Laboratories r�a�Responsible Charge ry Supervisor Comments Final Effluent RAL # 28012-01, 28230-01, 28296-01 MAIL ORIGINAL TO nvuronmen ciences 13ranc Division of Water Quality NC DENR 1621 Mail Service Center Raleigh, NC 27699-1621 E taI S h Test Initiation Date/Time 12/7/2016 % Eff. Control Repl. Surviving # Original # Wt/original (mg) 22.00 Surviving # Original # Wt/original (mg) 33.00 Surviving # Original # Wt/original (mg) 44.00 Surviving # Original # Wt/Original (mg) 66.00 Surviving # Original # Wt/original (mg) 88.00 Surviving # Original # Wt/original (mg) Water Quality Data Control pH (SU) Init/Fin DO (mg/L) Init/Fin Temp (C) Init/Fin High Concentration pH (SU) Init/Fin DO(mg/L)Int/Fin Temp (C) Init/Fin Sample Collection Start Date Grab Composite (Duration) Hardness (mg/L) Alkalinity (mg/L) Conductivity (umhos/cm) Chlorine(mg/L) Temp. at Receipt (°C) Dilution H2O Hardness (mg/L) Alkalinity (mg/L) Conductivity (umhos/cm) 1 / 1.53pm 2 3 4 Avg Wt/Surv. Control 15 15 15 15 15 15 15 15 0.7287 0.6800 0.7687 0.7340 15 15 15 15 15 15 15 15 0.8380 0.7820 0.7713 0.7633 14 15 14 15 15 15 15 15 0.8386 0.8900 0.8521 0.7533 15 15 15 15 15 15 15 15 0.8053 0.7640 0.8427 0.7967 14 14 13 14 15 15 15 15 0.8193 0.7564 0.7123 0.8450 14 14 - 14 14 15 15 15 15 0.7836 0.8343 0.7871 0.6957 Day % Survival Avg Wt (mg) % Survival Avg Wt (mg) % Survival Avg Wt (mg) % Survival Avg Wt (mg) % Survival Avg Wt (mg) % Survival Avg Wt (mg) 0.7278 100.0 0.7278 100.0 0.7887 96.7 0.8335 100.0 0.8022 91.7 0.7833 93.3 0.7752, 0 2 3 4 5 6 7.22 / 7.18 7.24 / 7.16 7.32 / 7.17 7.27 / 7.21 7.30 / 7.09 7.34 / 7.06 7.33 / 7.14 8.6 / 7.9 8.4 / 8.2 8.4 / 8.2 8.5 / 8.0 8.3 / 7.8 8.4 / 8.0 8.3 / 7.9 25.1 / 25.5 25.0 / 24.5 24.4 / 24.5 24.5 / 24.5 24.4 / 24.4 24.6 / 24.4 24.1 / 24.2 0 1 2 4 5 6 7.03 / 7.06 7.19 / 7.20 7.31 / 7.25 7.40 / 7.19 7.32 / 7.13 7.41 / 7.20 7.29 / 7.18 8.6 / 7.8 8.5 / 8.0 8.6 / 8.1 8.6 / 8.0 8.5 / 7.8 8.4 / 7.6 8.4 / 7.7 24.4 / 24.6 24.5 / 24.5 24.4 / 24.6 24.7 / 24.5 24.9 / 24.5 24.7 / 24.5 24.4 / 24.5 1 2 3 12/5/2016 12/8/2016 12/11/2016 24 24 24 56 49 54 41 39 43 435 729 766 0.03 0.01 0.03 3.0 3.4 2.3 48 37 191 Normal Horn. Var. NOEC LOEC ChV Method Stats Conc. 22.00 Survival 100.00 >100 >100 Steels Survival Critical 10 33.00 10 44.00 10 66.00 10 88.00 10 Growth 100.00 >100 >100 Dunnetts Calculated 25 25 25 22 23 Test Organisms rr Cultured In -House I✓ Outside Supplier Hatch Date: 12/5/2016 Hatch Time: >1600 Overall Result ChV >100 Growth Critical Calculated 2.41-1.7918 2.41 2.41 2.41 2.41 -3.1136 -2.1904 -1.6327 -1.3947 DWQ Form AT-5 (1/04) (11/7/2017) Rudy Broschinski - Town of Boone.pdf Page 2 Effluent Toxicity Report Form -Chronic Fathead Minnow Multi -Concentration Test Facility: Town of Boone Date:10/12/2017 NPDES # NCOO 26621 Lahq -tory: wear, Analyticalaporet s -5gn1 sponsi e Charge signep .b.f-torysupervisor MAIL URRANAL I (1: Pipe #: 001 County: Watauga Comments Final Effluent HAL #40871-01, 41089-01, 41182-U1 nvrronmental Sciences Branch Division or Water Quality NC DENR 1621 Mail Service Center Raleigh, NC 27699-1621 Test Initiation Date/Time 10/4/2017 'Control I % EN. Rept. Surviving # Original # WUoriglnal (mg) I 22.001 Surviving # Original # WI/original (mg) I 33.001 Surviving # Original # WUoriginal (mg) I 44.001 Surviving # Original # WUoriglnal (mg) I 68.00' Surviving # Original # WI/original (mg) 88.00 Surviving it Original # WUodgidal (mg) Water Quality Data Control pH (SU) Init/Ftn DO (mg/L) InIt/FIn Temp (C) InIUI9n High Concentration pH (SU) Init/Fin DO(mg/L)InUFin Temp (C) Init/Fin Sample Collection Start Date Grab Composite (Duration) Hardness (mg/L) Alkalinity (mg/L) Conductivity (umhos/cm) Chlortne(mg/L) Terrp. at Receipt (°C) Dilution H2O Hardness (mg/L) Alkalinity (mg1L) Conductivity (umhos/cm) / 1.32PM 2 3 4 Avg WUSurv. Contrail 0.84251 Teat Organisms 15 15 15 15 15 15 15 15 0.8193 0.9207 0.7933 0.8367 15 14 15 15 15 15 15 15 0.7500 0.7664 0.7887 0.7200 15 15 15 15 15 15 15 15 0.8120 0.8987 0.7567 0.8327 15 15 14 15 15 15 15 15 0.9087 0.8963 0.9814 0.9253 15 15 15 15 15 15 15 15 0.9047 0.8873 0.8747 0.6993 15 • 15 14 15 15 15 15 15 0.9040 0.8940 0.8014 1,0387 Day % Survival Avg Wt (mg) % Survival Avg Wt (mg) % Survival Avg Wt (mg) % Survival Avg Wt (mg) % Survival Avg Wt (mg) % Survival Avg Wt (mg) 100.01 0.8425] 98.3' 0.7583] loon ' 0.82501 98.3 0.92271 100.01 ( 0.84151 98.3 0.9095 0 1 2 3 7.07 / 6.83 7.14 / 8.87 7.12 / 8.92 7.17 / 7.01 7.20 / 6.89 7.15 / 7.02 7.22 / 8.87 8.5 / 8.2 8.6 / 8.3 8.6 / 8.2 8.5 / 8,2 8.6 / 8.3 8.8 1 8.3 8.5 / 8.2 24.5 /A 24.3 24.6 / 24.5 24.7 / 24.6 24.7 / 24,6 24.6 / 24.4 24.5 1 24.3 24,6 / 25.0 0 1 2 7.28 / 7.18 7.29 / 7.14 7.31 / 7.15 7.33 / 7.16 7.37 / 7.18 7.30 / 7.19 7.39 / 7.14 8.6 / 8.4 8.8 / 8.4 8.5 / 8.4 8.6 ! 8.4 8.5 / 8.3 8.5 / 8.2 8.6 / 8.4 24.7 / 24.7 24.8 1 24.7 24.7 / 24.6 24.7 / 24.6 24.8 / 24.5 24.4 I 24.5 24.6 / 24.9 1 2 3 1012/2017 10/5/2017 10/8/2017 24 23 24 52 48 49 40 35 38 783 731 654 0.03 0.01 0.03 2.1 3.0 2.2 48 39 191 Survival Normal fl Horn. Var. ❑ll NOEC 100.00 LOEC >100 Growth rl� Gil 100.00 >100 ChV >100 >100 Method Steels Dunnetts Stets Conc. 22.00 rin.�r Cultured In -House .1'- Outside Suppler Hatch Date: 10/2/2017 Hatch Time: >1600 Overall Result CIrV >100 Survival Growth Critical Calculated Critical Calculated 10 10 2.41 1.8239 33.00 10 44.00 . 10 66.00 10 88,00 10 16 2.41 0.3606 24 2.41-1-8959 19 2.41 0.0212 21 2.41-1.4178 DWQ Form AT-5 (1/04) Effluent Toxicity Report Form -Chronic Fathead Minnow Multi -Concentration Test 20621 ' Ipe 001 oun : Watauga 2Ci : Town of Boone aboatory: esearch & A Laboratories r m ' esponsl• e arge ry upervlsor Test Initiation Date/Time 7/11/2018 / 12:53PM % Eff. Control Rept. Surviving # Original # Wt/original (mg) I 22.001 Surviving # Original # Wt/original (mg) I 33.001 Surviving # Original # Wt/original (mg) 44.00l Surviving # Original #. Wt/original (mg) I 66.001 Surviving # Original # Wt/original (mg) I 88.001 Surviving # Original # Wt/original (mg) nvtronmen a eiences ranc Division of Water Quality NC DENR 1621 Mail Service Center Raleigh, NC 27699-1621 15 0.8620 15 15 0.8187 15 15 15 Avg WUSurv. Control 15 I 15 15 15 0.8180 0.7573 0.8500 15 15 0.7460 15 15 0.8920 15 15 0.8193 15 0.7727 15 0.8667 15 1.0307 15 15 15 15 15 15 I 15 0.8993 0.9073 0.9007 15 15 15 15 I 15 15 1 15 -0.9107 0.8960 0.9520 15 15 1 14 15 1 15 15 I 15 0.9393 0.9867 0.9536 % Survival Avg Wt (mg) % Survival Avg Wt (mg) 0.8218 % Survival Avg Wt (mg) % Survival Avg Wt (mg) % Survival Avg Wt (mg) % Survival Avg Wt (mg) ommen s ina Effluent 0.7928 100.0 100.0 100.0 0.8700 100.0 0.9064 Date:7/22/2018 Test Organisms Day Water Quality Data 3 4 5 6 Control 0 1 2 pH (SU) Init/Fin 7.04 / 6.99 7.11 / 7.01 7.12 / 6.97 7.16 / 7.01 7.14 / 7.04 7.17 / 7.05 7.19 / 7.06 DO (mg/L) Init/Fin 8.5 / 8.2 8.6 / 8.3 8.6 / 8.3 8.6 / 8.2 8.5 / 8.1 8.5 / 8.0 8.6 / 8.1 Temp (C) Init/Fin 24.7 / 24.5 24.5 / 24.6 24.6 / 24.8 24.5 / 24.8 24.6 / 24.5 24.5 / 24.6 24.8 / 24.5 High Concentration 0 1 2 3 4 5 6 pH (SU) Init/Fin 7.21 / 7.05 7.19 / 7.07 7.21 / 7.10 7.29 / 7.07 7.24 / 7.10 7.30 / 7.08 7.27 / 7.10 DO(mg/L)Int/Fin 8.6 / 8.4 8.6 / 8.4 8.6 / 8.1 8.4 / 8.2 8.6 / 8.2 8.5 / 8.1 8.6 / 8.0 Temp (C) Init/Fin 24.6 / 24.4 24.5 / 24.6 24.6 / 24.7 24.6 / 24.8 24.7 / 24.6 24.6 / 24.6 24.6 / 24.6 2 3 Survival Growth Sample 1 Collection Start Date 7/9/2018 7/12/2018 7/15/2018 Normal rf ° Ft Hom. Var. fly Ft Grab Composite (Duration) 88.00 88.00 24 24 24 NOEC LOEC >88% >g8% Hardness (mg/L) 48 49 48 >88% Alkalinity (mg/L) 31 36 34 ChV >88% Conductivity (umhos/cm) 823 787 754 Method Steels Dunnetts Chlorine(mg/L) Temp. at Receipt (°C) r Dilution H2O Hardness (mg/L) 0.04 2.7 48 Alkalinity (mg/L) 38 Conductivity (umhos/cm) 190 0.04 3.0 0.02 3.0 Cultured In -House Outside Supplier Hatch Date: 7/9/2018 Hatch Time: >1600 Overall Result ChV >86% Stats Survival Growth Conc. Critical Calculated Critical Calculated 22.00 10 23 2.41-0.8575 33.00 10 22 2.41 -0.7739 44.00 10 23 2.41-2.2819 66.00 10 26 2.41-3.3567 88.00 10 26 2.41-5.4627 Facility: Town of Boone x abo • tory: - ^ - earch & An lytic- Laboratories x g fir' •?Qf/ t.w : r m - esponsi • e arge `a ur•1 J ra ory upervisor MAIL ORR:INAL 7 0: Effluent Toxicity Report Form -Chronic Fathead Minnow Multi -Concentration Test NPDES # COO 20621 Pipe #: 001 county: Watauga • Test Initiation Date/Time 4/10/2019 % Eff. (Codtrol 1 Rept. Surviving # Original # WUoriginal (mg) 1 22.001 Surviving # Original # Wt/original (mg) 1 33.001 Surviving # Original # Wt/original (mg) 1 44.001 Surviving # Original # Wt/original (mg) 1 66.001 Surviving # Original # Wt/original (mg) 1 88.001 Surviving # Original # Wt/original (mg) 1 / 1:27PM 2 3 Date:4/18/2019 comments Final Effluent L # 65162-01, 65408-01, 65459-01 Environmental Sciences Branch Division of Water Quality NC DENR 1621 Mail Service Center Raleigh, NC 27699-1621 Avg Wt/Surv. Control( 0.61921 15 15 15 4 15 15 15 15 0.5780 15 0.6893 15 0.5973 15 15 0.6120 i 15 0.6613 15 15 0.6780 15 0.6933 15 15 0.6813 15 0.7607 15 15 0.5753 15 15 0.6873 15 15 0.7753 15 15 15 15 15 15 1 15 15 0.6793 0.6447 0.6473 0.6760 15 15 15 15 15 0.7120 15 0.6880 15 0.7207 15 0.6907 15 15 15 15 15 1 15 15 I 15 1 0.7327 0.7287 0.6747 0.7020 Water Quality Data Control 0 pH (SU) Init/Fin 7.09 / 7.04 7.02 / 6.99 7.00 / 6.97 7.03 / 6.98 7.00 / 7.01 7.05 / 7.00 DO (mg/L) Init/Fin 8.5 / 8.3 8.5 / 8.1 8.6 / 8.0 8.6 / 8.1 8.6 / 8.3 8.5 / 8.3 Temp (C) Init/Fin 24.5 / 24.4 24.4 / 24.5 24.5 / 24.4 24.4 / 24.5 24.3 / 24.5 24.4 / 24.5 Day % Survival 100.01 Avg Wt (mg) % Surviva 0.61921 100.01 Avg Wt (mg) % Survival Avg Wt (mg) % Survival Avg Wt (mg) % Survival Avg Wt (mg) 0.70071 100.01 0.67751 100.0I 0.66181 100.0' 0.70291 % Survival Avg Wt (mg) ioo.ol 0.70951 High Concentration pH (SU) Init/Fin DO(mglL)Int/Fin Temp (C) Init/Fin Sample Collection Start Date Grab Composite (Duration) Hardness (mg/L) Alkalinity (mg/L) Conductivity (umhos/cm) Chlorine(mg/L) Temp. at Receipt (°C) Dilution H2O Hardness (mg/L) Alkalinity (mg/L) Conductivity (umhos/cm) 1 2 3 4 5 6 Test Organisms 6.99 / 6.96 8.5 / 8.1 24.6 / 24.4 5 6 0 1 ' . 7.00 / 6.87 6.91 / 6.81 6.94 / 6.79 6.99 / 6.82 6.98 / 6.80 693 / 6.89 7.04 / 6.98 8.6 / 8.4 8.5 / 8.2 8.5 / 8.0 8.6 / 8.1 8.5 / 8.2 8.5 / 8.2 8.6 / 8.3 24.5 / 24.6 24.5 / 24.5 24.5 / 24.5 24.5 / .24.4 24.5 / 24.4 24.3 / 24.5 24.6 / 24.5 2 3 4/8/2019 4/11/2019 4/14/2019 24 24 24 44 50 52 42 39 43 849 822 622 0.01 0.03 0.05 2.5 3.1 3.0 48 39 189 Survival Normal JU Horn. Var. • NOEC 88.00 LOEC >88% ChV >88% Method Steels Stats Survival Conc. Critical 22.00 10 33.00 10 44.00 10 66.00 10 8® 10 Growth Fri 88.00 >88% >88% Dunnetts Calculated 24 20 22 25 25 1 Cultured In -House Outside Supplier Hatch Date: 4/8/2019 Hatch Time: >1600 Overall Result ChV I>88% Growth Critical Calculated 2.41-2.5592 2.41 2.41 2.41 2.41 -1.8315 -1.3401 -2.6283 -2.8379 ..••tos -__.- wr a /411141 Effluent Toxicity Report Form -Chronic Fathead Minnow Multi -Concentration Test Date:1/17/2020 Control Facility: Town of Boone x ora • Researc & A alytical Laboratories NPDES # NCOO 20621 Sig re or in Responsible Charge x big 0 oratory Supervisor Pipe #: 001 County: Watauga Comments Final Effluent RAL # 76805-01, 76979-01, 77083-01 MAIL ORIGINAL "1 nvironmen crences Brant Division of Water Quality NC DENR 1621 Mail Service Center Raleigh, NC 27699-1621 taIS h Test Initiation Date/Time 1/8/2020 % Eff. Reps. Surviving # Original it Wuoriginal (mg) 22.00 Surviving # Original # Wt/original (mg) 33.00 Surviving # Original # Wt/original (mg) 44.00 Surviving # Original # WI/original (mg) 66.00 Surviving # Original # WI/original (mg) 88.00 Surviving # Original # WUeriginal (mg) Water Quality Data Control pH (SU) Init/Fin DO (mg/L) IniVFin Temp (C) Init/Fin High Concentration pH (SU) tniUFin DO(mg/L)Int/Fin Temp (C) Init/Fin Sample Collection Start Date Grab Composite (Duration) Hardness (mg/L) Alkalinity (mg/L) Conductivity (umhos/cm) Chlorine(mg/L) Temp. at Receipt (°C) Dilution H2O Hardness (mg/L) Alkalinity (mg/L) Conductivity (umhos/cm) 1 1 2:32PM 2 3 4 Avg Wt/Surv. Controls 0.6552 15 15 15 15 15 15 15 15 0.6207 0.6380 0.6713 0.6907 15 15 15 15 15 15 15 15 0.6233 0.6547 0.7013 0.6653 15 15 15 15 15 15 15 15 0.6740 0.8787 0.7340 0.6260 15 15 15 15 15 15 15 15 0.6673 0.6613 0.6827 0.6807 15 15 15 15 15 15 15 15 0.6707 0.6713 0.7233 0.6967 15 15 15 15 15 15 15 15 0.6960 0.6973 0.7113 0.7340 Day % Survival Avg Wt (mg) % Survival Avg Wt(mg) % Survival Avg Wt (mg) % Survival Avg Wt (mg) % Survival Avg WI (mg) % Survival Avg Wt (mg) 100.0 0.6552 100.0 0.6611 100.0 0.6782 100.0 0.6730 100.0 0.6905 100.0 0.7096 0 1 2 3 4 6 7.28 / 7.21 7.30 / 7.20 7.27 / 7.22 7.31 / 7.20 7.33 / 7.24 7.35 / 7.19 7.31 1 7.22 8.6 / 8.3 8.6 / 8.4 8.5 / 8.4 8.6 / 8.3 8.6 / 8.4 8.5 / 8.3 8.5 / 8.3 24.5 / 24.4 24.6 / 24.5 24.5 / 24.5 24.4 / 24.6 24.6 / 24.5 24.5 / 24.5 24.4 / 24.6 1 2 3 4 5 6 7.27 / 7.15 7.21 / 7.17 7.24 / 7.19 7.30 / 7.22 7.31 / 7.18 7.28 / 7.19 7.21 1 7.16 8.8 / 8.4 8.5 / 8.3 8.5 / 8.3 8.6 / 8.4 8.5 / 8.3 8.5 / 8.3 8.6 / 8.3 24.4 / 24.5 24.8 1 24.6 24.6 / 24.5 24.6 / 24.6 24.4 / 24.4 24.5 / 24.4 24.4 1 24.5 1 2 3 1/6/2020 1/9/2020 1/12/2020 24 24 24 47 46 45 41 37 32 838 798 504 0.02 0.02 0.02 2.7 2.1 3.3 96 61 404 Normal Hom. Var. NOEC Survival rid rl 88.00 LOEC >88% ChV >88% Growth Fl: 88.00 >88% >88% Method Steels Dunnetts Stats Conc. 22.00 Test Organisms r Cultured In -House r Outside Supplier Hatch Date: 1/6/2020 Hatch Time: >1600 Overall Result ChV >88% Survival Growth Critical Calculated Critical Calculated 10 19 2.41-0.2918 33.00 10 44.00 10 66.00 10 88.00 10 21 20 22.5 26 2.41 2.41 2.41 2.41 -1.1231 -0.8704 -1.7250 -2.6601 DWQ Form AT-5 (1/04) RESEARCIh & ANAIyTICAL LAbORATORIES, INC. Analytical/Process Consultations Chemical Analysis for Selected Parameters and Water Samples Identified as Eff Grab (A Town of Boone WWTP. Profret. collected 10 July 20181 ), Volatile Organics EPA Method 624.1 Parameter Methylene Chloride Trichlorofluoromethane l.I-Dichloroethene 1,1-Dichloroethane Chloroform Carbon Tetrachloride 1,2-Dichloropropane Trichloroethene Dibromochloromethane I,1,2-Trichloroethane Tetrachloroethene Chlorobenzene Trans-1,2-Dichloroethene 1,2-Dichloroethane 1,1,1-Trichloroethane Bromodichloromethane Cis-1,3-Diehloropropene Benzene Trans-1,3-Dichloropropene Bromoform 1,1,2,2-Tetrachloro ethane Toluene Ethyl Benzene Chloromethane Bromomethane Vinyl Chloride Chloroethane Total Xylenes Acrolein Acrylonitrile Dilution Factor Sample Number Sample Date Sample Time (hrs) Date Analyzed Time Analyzed Surrogate Recovery (DBFM) Surrogate Recovery (Toluene-d8) Surrogate Recovery (4-BFB) Quantitation Eff Grab Limit fine/L) (me/L) 0.010 BQL 0.010 BQL 0.010 BQL 0.010 BQL 0.010 BQL 0.010 BQL 0.010 BQL 0.010 SQL 0.010 BQL 0.010 BQL 0.010 BQL 0.010 BQL 0.010 SQL 0.010 BQL 0.010 BQL 0.010 BQL 0.010 BQL 0.010 BQL 0.010 BQL 0.010 BQL 0.010 BQL 0.010 BQL 0.010 BQL 0.010 BQL 0.010 BQL 0.010 BQL 0.010 BQL 0.010 BQL 0.100 BQL 0.100 SQL Range (70-130%) Range (70-130%) Range (70-130%) BQL = BelowQuantiution Limits mg/1. • milligrams pa Liter= pans pa million (ppm) NOPI = No Other Peaks Identified 53136-04 07/10/18 0855 07/15/18 2044 100% 102% 98% II. Semi -Volatile Organics EPA Method 625 BNA Parameter 4-Chloro-3-methylphenol 2-Chlorophenol 2,4-Dichlorophenol 2,4-Dimethylphenol 2,4-Dinitrophenol 2-Methyl-4,6-dinitrophenol 2-Nitrophenol 4-Nitrophenol Pentachlorophenol Phenol 2,4.6-Trichtorophenol Acehaphttene Acenaph hylene Anthtacene Benzidinc Benzn(a)anthracene Benzo(a)pyrene Benzo(b)fluomnthcne Benzo(ghi)perylene Benzo(k)fluonanhcne Bcnzyl butyl phthalate Bis(2-chloroethoxy)methane Sis(2-chloroclhyl)cthcr Bis(2-chtoroisoproliylcther B is(2-ethyl-hexyl )phthalate 4-Bromophenyl phenyl ether 2-Chloronaphlhalene 4-Chlorophenyl phenyl ether Chrysene Dibenzo(a,h)anthracene 1,2-Dichlorobenzcne 1,3-Dichlorobenzene 1,4-Dichlorobenzeac 3,3-Dichlorobenzidine Diethyl phthalate Dimethyl phthalate Di-N-Butyl phthalate 2,4-Dinitrotoluene 2,6-Dinitrotoluene Di-N-Octyl phthalate 1,2-Diphenylhydrazine Fluoranthene Fluorcne Hexachlorobenzene Hexachlorobutadienc Hexachlorocyclopentadiene Hexachloroethane Indeno(1,2.3-cd) pyrene lsophorone Naphthalene Nitrobenzene N-Nitrosodimethylamine N-nitrosodi-n-propylaminc N-Nitrosodiphenylamine Phenanthrene Pyrene 1,2,4-Trtchlorobenzene 2-Methylnaphlhalene 1-Methylnapthalene Dilution Factor Sample Number Sample Date Sample Time (hrs) Dale Extracted Date Analyzed Time Analyzed Quantitation Eff Grab Limit (melt) lmu/L2 0.010 BQL 0.010 BQL 0.010 BQL 0.010 BQL 0.050 BQL 0.050 BQL 0.010 BQL 0.050 SQL 0.050 BQL 0.010 SQL 0.010 BQL 0.010 BQL 0.010 SQL 0.010 BQL 0.050 BQL 0.010 BQL 0.010 BQL 0.010 BQL 0.010 BQL 0.010 BQL 0.010 BQL 0.010 BQL 0.010 BQL 0.010 BQL 0.010 BQL 0.010 BQL 0.010 BQL 0.010 BQL 0.010 BQL 0.010 SQL 0.010 BQL 0.010 BQL 0.010 SQL 0.020 BQL 0.010 BQL 0,010 BQL 0.010 BQL 0.010 BQL 0.010 SQL 0.010 BQL 0.050 BQL 0.010 BQL 0.010 BQL 0.010 BQL 0.010 BQL 0.010 BQL 0.010 BQL 0.010 BQL 0.010 BQL 0.010 BQL 0.010 BQL 0.010 SQL 0.010 SQL 0.010 BQL 0.010 BQL 0.010 BQL 0.010 BQL 0.010 SQL 0.010 SQL t Surrogate Recovery Range 53136-05 07/10/18 1140 07/11/18 07/12/18 0104 2-Fluorophenol Phenol-D6 Nitrobenzene D5 2,4,6-Tribromophenol 2-Fluorobiphenyl 4-Terphenyl-D14 (5-77%) 26% (7-64%) 24% (29.149%) 54% (12-123%) 50% (10-133%) 53% (20.133%) 59% Analytical/Process Consultations Chemical Analysis for Selected Parameters and Water Sample Idenitied as Eff Grab (A Town of Boone Project, collected 11 April 2019) I. Volatile Organics Quantitation Eff Grab EPA Method 624.1 Limit Parameter (m¢/L) (mg/L) Methylene Chloride 0.010 BQL Trichlorofluoromethane 0.010 BQL 1,I-Dichloroethene 0.010 BQL 1,1-Dichloroethane 0.010 BQL Chloroform 0.010 BQL Carbon Tetrachloride 0.010 BQL 1,2-Dichloropropene 0.010 BQL Trichloroethene 0.010 BQL Dibromochloromethane 0.010 BQL 1,1,2-Trichioroethane 0.010 BQL Tetrachloroethene 0.010 BQL Chlorobenzene 0.010 BQL Trans-1,2-Dichloroethene 0.010 BQL 1,2-Dichloroethane 0.010 BQL 1,1,1-Trichloroethane 0.010 BQL Bromodichloromcthane 0.010 BQL Cis-1,3-Dichloropropene 0.010 BQL Benzene 0.010 BQL Trans-1,3-Dichloropropene 0.010 BQL, Bromoform 0.010 BQL 1,1,2,2-Tetrachloroethane 0.010 BQL Toluene 0.010 BQL Ethyl Benzene 0.010 BQL Chloromethane 0.010 BQL Bromomethane 0.010 BQL Vinyl Chloride 0.010 BQL Chloroethane 0.010 BQL Total Xylenes 0.010 BQL Acrolein 0.100 BQL Acrylonitrile 0.100 0.887 2-Chloroethyl vinyl ether 0.010 BQL Sample Number 65422-01 Sample Date 04/11/19 Sample Time (hrs) 0900 Quantitation limits must be multiplied by dilution factor mgfL = milligrams per Liter= parts per million (ppm) SQL = Below Quantitation Limits ESEARC NAlyTICA LABORATORIES, NC. Analytical/Process Consultatlons Cllelnical Analysis for Selected Parameters and Water Samples Identified as Eff Grab (A Town of Ronne WWTP. Project. rollpeted 07 Jannary 20201 1. Volatile Organics EPA Method 624.1 Parameter Methylene Chloride Trichlorot uoromethanc 1,1-Dichloroethene 1,l-Dichloroethane Chloroform Carbon Tetrachloride 1,2-Dichloropropene Trichloroethene Dibromochlommethane 1,1,2-Trichlorocthane Tetrachloroethene Chlorobenzene Trans-1 2-Dichloroethene 1,2-Dichioroethane 1,1,1-Trichloroethane Bromodichloromethane Cis-1,3-Dichloropropene Benzene Trans-1,3-Dichloropropene Bromoform 1,1,2,2-Tetrachloroethane Toluene Ethyl Benzene Chloromethane Bromomethanc Vinyl Chloride Chloroethane Total Xylenes Acrolein Acrylonitrile Dilution Factor Sample Number Sample Date Sample Time (hrs) Date Analyzed Time Analyzed Surrogate Recovery (DBFM) Surrogate Recovery (Toluene -dB) Surrogate Recovery (4-BFB) Quantitation Limit (me/L) 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.100 0.100 Range (70-130%) Range (70-130%) Range (70-130%) SS(Jl. - Below Quantitation Limits mg/L - milligrams pa Liter_ pans per million (ppm) NOPI No Ocher Peaks Identified Eff Grab p, Semi -Volatile Organics EPA Method 625 BNA ime/L) Parameter BQL SQL SQL SQL BQL BQL SQL SQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL SQL BQL BQL SQL SQL BQL BQL BQL BQL BQL SQL BQL 1 76803-04 01/07/20 0900 01/16/20 2112 113% 99% 102% 4•Chloro-3-methylphenol 2-Chlorophcnol 2.4-Dichlorophenoi 2,4-Dimethylphenol 2,4-Dinitrophcnol 2-Methyl-4,6-dinitrophcnol 2-Nitrophenoi 4-Nitrophenoi Pentachlorophenol Phenol 2.4,6-Trichlorophenol Acenaphdhcne Acenaphthylcne Anthracenc Henzidinc Benoor(a)anihraccne Benzo(n)pyrene Senzo(b)Buoranthene Benzo(ght)perylene I3enzo(k )fluoranthenc Senzyi butyl phthalate His(2.chloroethoxy)methanc 13is(2-chloroethyl)ethcr Bis(2 chlorotsopropyl)ethcr 134i4lr € t)Phihalat 4-13romophenyl phenyl ether 2-Chloronaphlhalenc 4-Chlorophenyl phenyl ether Chrysenc Dihcnzo(a,h)anthracene 1,2-Dichlorobenzene 1,3-Dichlorobenzene 1,4-Dichlorobenzene 3.3-Dichlorobenzidinc Diethyl phthalate Dimethyl phthalate Di-N-Butyl phthalate 2,4-Diniuotoluenc 2,6-Dinitrotoluenc Di-N-Octyl phthalate 1,2-Diphenylhydrazinc Fluoranthenc Fluorcnc licxachlorobenzene Hexachlorobutadiene Ilexachlorocyclopentadienc Ilcxachloructhane Indeno(1,2.3-cd) pyretic Isuphorone Naphthalene Nitrobenzene N-Nitrosodimethylaminc N-ni rosodi-n-propylamine N-Nitrosodipheny lamine Phenanthrene Pyrene 1.2,4-1riehlorobenzeno 2-Methylnaphthalcne 1-Methylnapthalene Dilution Factor Sample Number Sample Date Sample Time (hrs) Date Extracted Date Analyzed Time Analyzed Quantitation Eff Grab Limit (mg/L) (me/L) 0.010 SQL 0.010 SQL 0.010 SQL 0.010 BQi. 0.050 BQL 0.050 BQi. 0.010 BQL 0.050 SQL 0.050 SQL 0.010 SQL 0.010 SQL 0.010 BQL 0.010 SQL 0.010 BQL 0.050 SQL 0.010 SQL 0.010 SQL 0.010 SQL 0.010 SQL 0.010 SQL 0.010 BQL 0.010 SQL 0.010 SQL 0.010 SQL 0.010 SQL 0.010 SQL 0.010 SQL 0.010 SQL 0.010 BQL 0.010 BQL 0.010 SQL 0.010 BQL 0.010 SQL 0.020 SQL 0.010 SQL 0.010 BQL 0.010 BQL 0.010 SQL 0.010 SQL 0.010 BQL 0.050 SQL 0.010 BQL 0.010 SQL 0.010 SQL. 0.010 SQL 0.010 SQL. 0.010 BQL 0.010 SQL 0.010 BQL 0.010 SQL 0.010 SQL 0.010 SQL 0.010 SQL 0.010 SQL 0.010 SQL 0.010 SQL. 0.010 BQL 0.010 SQL 0.010 SQL 1 Surrogate Recovery Range 76803-05 01/07/20 01/08/20 01/15/20 2053 2-Fluorophenol Phenol-D6 Nitrobenzene-D5 2,4,6-Tribromophenol 2-Fluorobiphenyl 4-Terphenyl-D14 (5-77%) 70% (7-64%) 53% (29-149%) 75% (12-123%) 59% (10-133%) 63% (20-133%) 42% SEA C `` NA yTICA ORATORIES, C. Analytical/Process Consultations Chemical Analysis for Selected Parameters and Water Samples Identified as Eff Comp (A Town of Boone WWTP. Project, collected 24 April 2018) I. Semi -Volatile Organics Quantitation Eff Comp 2 EPA Method 625 BNA Limit Parameter (mg/LZ (mg/L) 13is(2-ethyl-hexyl)phthalate 0.010 I3QL Dilution Factor 1 Sample Number 49703-05 Sample Date 04/24/18 Sample Time (hrs) 1120 Date Extracted 04/27/18 Date Analyzed 04/30/18 Time Analyzed 1657 Surrogate Recovery Range 2-Fluorophenol (5-77%) 59% Phenol-D6 (7-64%) 44% Nitrobenzene-DS (29-149%) 85% 2,4,6-Tribromophenol (12-123%) 85% 2-Fluorobiphenyl (10-133%) 68% 4-Terphenyl-D14 (20-133%) 68% mg/L, = milligrams per Liter = pans per million (ppm) L3QI. = Below Quantitation Limits ESEA C NALyTICA A ORATORIES, C. Analytical/Process Consultations Chemical Analysis for Selected Parameters and Water Samples Identified as Eff Comp (A Town of Boone WWTP. Project, collected 15 May 2018) I. Semi -Volatile Organics Quantitation Eff Comp 2 EPA Method 625 BNA Limit Parameter (mg/L) (mg/L) Bis(2-ethyl-hexyl)phthalate 0.010 BQL Dilution Factor Sample Number 50694-02 Sample Date 05/15/18 Sample Time (hrs) 1135 Date Extracted 05/18/18 Date Analyzed 05/21/18 Time Analyzed 1801 Surrogate Recovery Range 2-Fluorophenol (5-77%) 60% Phenol-D6 (7-64%) 48% Nitrobenzene-DS (29-149%) 84% 2,4,6-Tribromophenol (12-123%) 92% 2-Fluorobiphenyl (10-133%) 73% 4-Terphenyl-Dl4 (20-133%) 85% milligrams per Liter parts per million (ppm) BQL W Below Quantitation Limits