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NC0039594_Fact Sheet_20210616
Fact Sheet NPDES Permit No. NC0039594 Permit Writer/Email Contact Nick Coco, nick.coco@ncdenr.gov: Date: March 25, 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 Maiden/Maiden Wastewater Treatment Plant (WWTP) Applicant Address: 19 N. Main Avenue, Maiden NC 28650 Facility Address: 2090 W. Finger Street Ext., Maiden NC 28650 Permitted Flow: 1.0 MGD Facility Type/Waste: MAJOR Municipal; 100% domestic Facility Class: Grade III Biological Water Pollution Control System Treatment Units: Mechanical screening, influent flow meter, influent composite sampler, grit removal, influent collection sump, influent transfer pumps, two (2) 475,000 gallon SBR tanks with decant pumps and blowers, one (1) 18,500 gallon equalization tank, post equalization transfer pumps, contact chamber with chlorination, dechlorination, effluent meter, effluent sampler circulation pump, effluent composite sampler, post equalization sludge transfer pumps, two (2) aerobic sludge digesters, sludge collection sump, sludge load out pumps, stand-by power Pretreatment Program (Y/N) N; last Industrial User dropped in 2018 and program deactivated County: Catawba Region Mooresville Briefly describe the proposed permitting action and facility background: The Town of Maiden has applied for an NPDES permit renewal at 1.0 MGD for the Maiden WWTP. This facility serves a population of approximately 3,500 residents. Treated domestic wastewater is discharged into Clark Creek, a class C water in the Catawba River Basin. The facility has a primary Outfall 001. Note: The facility submitted their 2017, 2018 and 2019 PPAs and the associated lab sheets. There was some inconsistency between the PPAs and the lab sheets that was discussed with the Town. The reported Page 1 of 10 results from the lab sheets were used for data analysis, as they were the most accurate reported values. Additionally, the 2017 second species test was submitted to the Division in response to an additional information request during the renewal process, completing the application. 2. Receiving Waterbodv Information: Receiving Waterbody Information Outfalls/Receiving Stream(s): Outfall 001 - Clark Creek Stream Index: 11-129-5-(0.3)b Stream Classification: C Drainage Area (mi2): 66 Summer 7Q10 (cfs) 12 Winter 7Q10 (cfs): 22 30Q2 (cfs): - Average Flow (cfs): 77 IWC (% effluent): 11 2018 303(d) listed/parameter: Yes - exceeding criteria for Benthos Subject to TMDL/parameter: Yes- State wide Mercury TMDL implementation. Subbasin/HUC: 03-08-35/03050102 USGS Topo Quad: E14SW Maiden, NC 3. Effluent Data Summary Effluent data for Outfall 001 is summarized below for the period of January 2017 through February 2021. Table 1. Effluent Data Summary Outfall 001 Parameter Units Average Max Min Permit Limit Flow MGD 0.55 2.4845 0.101 MA 1.0 BOD mg/1 6.7 56.5 < 2 WA 45.0 MA 35.0 TSS mg/1 6.2 40 2.5 WA 45.0 MA 30.0 NH3N (summer) mg/1 0.6 9.75 0.2 WA 21.0 MA 7.0 NH3N (winter) mg/1 0.6 8 0.2 WA 35.0 MA 24.2 Fecal Coliform #/100 ml g 6 5eomean 1U < 1 (geometric) WA 400 MA 200 Temperature ° C 16.9 25 0.5 Monitor & Report pH SU 6.6 7.63 5.6 6.0 < pH < 9.0 Total Residual Chlorine µg/1 21.8 38 15 DM 28 Total Silver µg/1 1.97 2.46* 0.4 Monitor & Report Total Hardness mg/1 29.2 38 24 Monitor & Report TN mg/1 6.2 14.2 2 Monitor & Report TP mg/1 2.3 4.5 0.53 Monitor & Report MA -Monthly Average, WA -Weekly Average, DM -Daily Maximum, DA-Daily Average, QA- Quarterly Average *Highest detected level of total silver reported in DMRs from January 2017 through February 2021 Page 2 of 10 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 requires instream monitoring for dissolved oxygen, conductivity and temperature upstream 100 feet above the outfall and downstream at NCSR 1282. The facility is also required to report upstream total hardness. Instream data from this facility reported from January 2017 through February 2021 have been summarized below in Table 2. Table 2. Instream Data Summary Parameter Units Upstream Downstream Average Max Min Average Max Min DO mg/1 9.5 15.2 6.15 9.5 15.74 6 Temperature ° C 15.6 25.8 1.3 15.7 25.8 0.4 Conductivity µmhos/cm 195.5 1215 20.7 199.5 1542 62 Total Hardness mg/1 31.8 122 12 - - - Students t-tests were run at a 95% confidence interval to analyze relationships between instream samples. A statistically significant difference is determined when the t-test p-value result is < 0.05 The downstream temperature did not exceed 29 degrees Celsius [per 15A NCAC 02B .0211 (18)] during the period reviewed. The temperature differential was not greater than 2.8 degrees Celsius on any occasion during the period reviewed. It was concluded that no statistically significant difference between upstream and downstream temperature exists. Downstream DO did not drop below 5 mg/L during the period reviewed [per 15A NCAC 02B .0211 (6)] during the period reviewed. It was concluded that no significant difference between upstream and downstream DO exists. It was concluded that no statistically significant difference between upstream and downstream conductivity exists. Per the 2002 memo regarding Instream Conductivity Monitoring Guidance, instream conductivity monitoring may be removed from 100% domestic wastewater permits. As the facility no longer accepts industrial wastewater and no statistically significant difference between upstream and downstream conductivity was found to exist, instream conductivity sampling has been removed from the permit. The current permit requires instream monitoring be conducted on a weekly basis. Per 15A NCAC 02B .0508, Upstream and Downstream monitoring in water quality limited waters is to be conducted three times per week during June, July, August, and September, and once per week during the rest of the year for a Grade III facility with SIC 4952. As such, the instream monitoring frequencies have been revised for temperature and dissolved oxygen to reflect 02B .0508. Is this facility a member of a Monitoring Coalition with waived instream monitoring (Y/N): N Name of Monitoring Coalition: NA Page 3 of 10 5. Compliance Summary Summarize the compliance record with permit effluent limits (past 5 years): In 2017, the facility reported two pH limit violations. Summarize the compliance record with aquatic toxicity test limits and any second species test results (past 5 years): The facility passed 17 of 17 quarterly chronic toxicity tests as well as 4 of 4 second species toxicity tests from January 2017 to January 2021. Summarize the results from the most recent compliance inspection: The last facility inspection conducted in October 2019 reported that the facility was in compliance with NPDES permit NC0039594. 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 limitations for BOD are secondary TBEL limits based on a 1994 Streeter Phelps model (Level B). No changes are proposed. 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: The current permit sets a daily maximum limit for TRC at 28 ug/L. The limits have been reviewed in the attached 2021 WLA spreadsheets and have been found to be protective. There are no proposed changes for TRC. The existing limitations for ammonia were implemented during the 2010 renewal and are based on IWC- based calculations. The limits have been reviewed in the attached 2021 WLA spreadsheets and have been found to be protective. There are no proposed changes for ammonia. Page 4 of 10 Reasonable Potential Analysis (RPA) for Toxicants If applicable, conduct RPA analysis and complete information below. The need for toxicant limits is based upon a demonstration of reasonable potential to exceed water quality standards, a statistical evaluation that is conducted during every permit renewal utilizing the most recent effluent data for each outfall. The RPA is conducted in accordance with 40 CFR 122.44 (d) (i). The NC RPA procedure utilizes the following: 1) 95% Confidence Level/95% Probability; 2) assumption of zero background; 3) use of detection limit for "less than" values; and 4) streamflows used for dilution consideration based on 15A NCAC 2B.0206. Effective April 6, 2016, NC began implementation of dissolved metals criteria in the RPA process in accordance with guidance titled NPDES Implementation of Instream Dissolved Metals Standards, dated June 10, 2016. A reasonable potential analysis was conducted on effluent toxicant data collected between January 2017 through February 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 Silver • 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: NA • POTW Effluent Pollutant Scan Review: Three effluent pollutant scans were evaluated for additional pollutants of concern. (PPAs from 2017, 2018 and 2019) 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 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: N/A o The following parameters will not receive a limit or monitoring, since they did not demonstrate reasonable potential to exceed applicable water quality standards/criteria and the maximum predicted concentration was <50% of the allowable concentration: Total Beryllium, Total Phenolic Compounds, Total Arsenic, Total Cadmium, Total Chromium, Total Copper, Total Cyanide, Total Lead, Total Nickel, Total Selenium, Total Zinc Reasonable potential to exceed surface water standards for total silver was demonstrated based on one total silver detection in January 2018. Shortly after the detection, the Town dropped its only industrial user and deactivated its Pretreatment Program. Since then, the facility has reported no detectable amount of total silver. Based on BPJ, total silver will continue to be monitored monthly, but no limit has been applied. 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. Page 5 of 10 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 11% 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 (1.0 MGD) 2017 2018 2019 # of Samples 1 1 1 Annual Average Conc. ng/L 1.8 2.2 3.3 Maximum Conc., ng/L 1.82 2.24 3.34 TBEL, ng/L 47 WQBEL, ng/L 104.9 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 MGD in design capacity, no mercury minimization plan (MMP) is required. Other TMDL/Nutrient Management Strategy Considerations If applicable, describe any other TMDLs/Nutrient Management Strategies and their implementation within this permit: NA Other WQBEL Considerations If applicable, describe any other parameters of concern evaluated for WQBELs: NA If applicable, describe any special actions (HQW or ORW) this receiving stream and classification shall comply with in order to protect the designated waterbody: NA Page 6 of 10 If applicable, describe any compliance schedules proposed for this permit renewal in accordance with 15A NCAC 2H.0107(c)(2)(B), 40CFR 122.47, and EPA May 2007 Memo: NA If applicable, describe any water quality standards variances proposed in accordance with NCGS 143- 215.3(e) and 15A NCAC 2B. 0226 for this permit renewal: NA 7. Technology -Based Effluent Limitations (TBELs) Municipals (if not applicable, delete and skip to Industrials) Are concentration limits in the permit at least as stringent as secondary treatment requirements (30 mg/1 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 BODS/TSS included in the permit? YES, Overall BOD and TSS removal was greater than 85%. 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) 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. Page 7 of 10 For instream monitoring, refer to Section 4. The existing permit requires effluent temperature monitoring be conducted on a 3/week basis. Per 15A NCAC 02B .0508, a Grade III water -quality limited facility with SIC 4952 shall sample for temperature at a daily frequency. However, as the instream monitoring indicates that effluent temperature does not appear to be impacting the receiving stream, the monitoring frequency for effluent temperature has been maintained at 3/week. 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 1.0 MGD Parameter Current Permit Proposed Change Basis for Condition/Change Flow MA 1.0 MGD No change 15A NCAC 2B .0505 BOD5 MA 30.0 mg/1 WA 45.0 mg/1 No change TBEL. 1994 Level B Model. Secondary treatment standards/40 CFR 133 / 15A NCAC 2B .0406; NH3-N Summer: MA 7.0 mg/1 WA 21.0 mg/1 Winter: MA 24.2 mg/1 WA 35.0 mg/1 No change WQBEL. 2021 WLA; 15A NCAC 2B TSS MA 30 mg/1 WA 45 mg/1 No change TBEL. Secondary treatment standards/40 CFR 133 / 15A NCAC 2B .0406 Fecal Coliform MA 200 /100m1 WA 400 /100m1 No change WQBEL. State WQ standard, 15A NCAC 2B Temperature Monitor and Report 3/week No change BPJ; Instream monitoring indicates effluent does not impact stream temperature pH 6.0 — 9.0 SU No change WQBEL. State WQ standard, 15A NCAC 2B .0224 Total Residual Chlorine DM 28 ug/L No change WQBEL. 2021 WLA; 15A NCAC 2B Total Silver Monitor and Report Monthly No change BPJ; Industrial User and PT program dropped after 2018 detection. All values non -detect since. Maintain monthly monitoring without limit. Page 8 of 10 Total Hardness Quarterly monitoring Upstream and in Effluent No change Hardness -dependent dissolved metals water quality standards approved in 2016; Pretreatment facility Total Nitrogen Monitor and Report Monthly No change Surface Water Monitoring, 15A NCAC 2B. 0500 Total Phosphorous Monitor and Report Monthly No change Surface Water Monitoring, 15A NCAC 2B. 0500 Instream Monitoring Monitor and Report Weekly Monitor and Report three times per week during June, July, August, and September, and once per week during the rest of the year Remove instream conductivity monitoring Surface Water Monitoring, 15A NCAC 2B. 0508 — SIC 4952 Grade III facility 2002 Instream Conductivity Monitoring Guidance memo Chronic Toxicity Chronic limit, 11% effluent No change WQBEL. No toxics in toxic amounts. 15A NCAC 2B 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: April 22, 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 Maiden, EPA Region IV, and the Division's Mooresville Regional Office, Aquatic Toxicology Branch and Operator Certification Program for review. No comments were received from any party. Were there any changes made since the Draft Permit was public noticed (Yes/No): Yes If Yes, list changes and their basis below: • The expiration date for the permit was modified to more closely fit a 5-year permit cycle. Accordingly, the specified years for the Effluent Pollutant Scans have been modified (2023, 2024, 2025). See Special Condition A. (3.). Page 9 of 10 15. Fact Sheet Attachments (if applicable): • RPA Spreadsheet Summaries • BOD and TSS Removal • Dissolved Metals Implementation/Freshwater • Waste Load Allocation Spreadsheets • Mercury TMDL Spreadsheet • Toxicity Summary • Renewal Application Addendum Page 10 of 10 Advertising Affidavit Observer News Enterprise 309 N College Ave Newton, NC 28658 NCDENR Wren Thedford 1617 Mail Service Center Raleigh, NC 27699-1617 Date 04/22/21 North Carolina Description-= NC0039594 Wastewater Permit Maiden WWTP Charge Balance $88.00 $88.00 Catawba County -w^ i Philip.Rogers;_BEING. DULY --SWORN SAYS: that he is the Composing Manager for the OBSERVER NEWS ENTERPRISE,.a_newspaper published at Newton, North Carolina. It is a -_: newspaper ofgeneral. circulation In -Catawba County and surrounding counties. The Notice NC0039594; Maiden WWTP, was -published in said newspaper and not a supplement thereof andisa_true-copy.of the. Notice as it was published in the regular and entire edition, -beginning on April 22, 2021, and endin0 on April 22, 2021, and that said OBSERVER NEWS ENTERPRISE.was.regularly distributed to the subscribers during said period. Sworntoand subscribed be re me this dy„ofApril 27, 2021. Composing Manager: \ j NOTARY PUBLIC:-1tet-t My Commission Expires: BETH A REEKS-LLOYD ■ NOTARY PUBLIC LINCOLN COUNTY, NORTH CAROLINA Nutlsc Notice North Carolina Environmental Management Commission/NP ES Unit 1617 Mail Servic • Center Raleigh, NC 27699-1617 Notice of Inte to Issue NPDES West water Pern NC0039594 Maiden WWTP The North Caro na Environment Management Commission pr poses to issue NPDES wasfew ter discharge pe mit to tl person(s) list( below. Writte comments r garding the pr posed permit u be accepted un 30 days after tt publish date this notice. Tt Director of tt NC Division Water Resource (DWR) may ho a public hearir should there be significant degre of public interes Please mail con ments and/or it formation rE quests to DWR ; the above ac dress. Intereste persons may vie the DWR at 51 N. Salisbui Street, Raeeigl NC 27604 to rE view informatio on file. Addition; information c NPDES permil and this notic may be found o our websitc http://deq.nc.gov, about/divisions/w ater- resources/water- resources-per- mits/wastewater- branch/npdes- wastewater/pub- lic-notices,or b calling (919) 70; 3601.. The Tow of Maiden [209 W. Finger Stree Ext., Maiden, Nt 28650] has re quested renew( of NPDES perm NC0039594 fc its Maide Wastewater Treatment Plan located in Cate wba County. Thi permitted facilit discharges treat ed municipt wastewater t. Clark Creek, class C water ii the Catawba Riv er Basin. Current Table 2. Parameters of Concern REQUIRED DATA ENTRY co Cr E z ❑ CHECK IF HQW OR ORW WQS J Q) 7 J 0) 7 J 0) 7 J a) J J O) 7 J O) 7 J 0) 7 J 0) 1 J 0) 1 J 0) 7 J O) 7 J O) 7 J 0) 7 J a) a J O) 7 J 0) 1 J 0) 1 J O) 7 J 0) 7 J_ 0) 7 O LC) O 340 Q Z LO o 3.9689 1094.9570 CO Q Z© CO N N 98.0286 L() LO OO ap 0 v Q Z O N V 0 153.0807 2 Q Q u u u u u u u u 2 u u u 150 10 LO 0Z 0.7039 230 300 142.5668 Q LO N CN9 O) Lf') O O O .- O LOCO CO (") 2000 45.3702 25.0000 ID O O 154.4847 U U 0 Z 0 Z 0 Z U Z U Z U Z 0 Z 0 Z U Z U Z 0 Z U Z 0 Z 0 Z U Z U Z U Z 0 Z U Z Aquactic Life Human Health Water Supply Aquatic Life Aquatic Life Aquatic Life Water Supply Aquatic Life Aquatic Life Aquatic Life Aquatic Life Aquatic Life Aquatic Life Aquatic Life Aquatic Life Aquatic Life Human Health Aquatic Life Water Supply Aquatic Life Aquatic Life Aquatic Life U .E N Q U •E N Q 2 m Cadmium U O 0 Chlorinated Phenolic Compounds 4 Total Phenolic Compounds Chromium III Chromium VI Chromium, Total Copper Cyanide Fluoride Lead Mercury E c N Q o Nickel Nickel E 2 .E Cr) N > U N C8,1 M L() CD f� COT O N el er L() CD f� CO 0,0 CV elO O O O 0 0 O O O N N N N er N a a a a a a a a a a a a a a a a a a a a a a a a Maiden WWTP Facility Name WWTP/WTP Class NC0036949 NPDES Permit O O O O O Clark Creek 0 Flow, Qw (MGD) Receiving Stream N O OLO OCO O HUC Number Stream Class ❑ Apply WS Hardness WQC O O O O O N N O O N w N V w O 0 CV O (r (r O JIa,1E 3)I EI%) E1°r'1M Effluent Hardness Upstream Hardness N G) 0 N R 0 0 APPLY MOD U U REASONABLE POTENTIAL ANALYSIS H1 Effluent Hardness Date Data BDL=1/2DL Results 1 7/3/2017 28 28 Std Dev. 2 8/1/2017 35 35 Mean 3 10/2/2017 38 38 C.V. 4 1/3/2018 26 26 n 5 4/2/2018 29 29 10th Per value 6 7/2/2018 24 24 Average Value 7 10/1/2018 34 34 Max. Value 8 1/2/2019 30 30 9 2/11/2019 25 25 10 4/2/2019 26 26 11 7/2/2019 28 28 12 10/7/2019 36 36 13 1/8/2020 30 30 14 4/8/2020 28 28 15 7/7/2020 27 27 16 10/5/2020 29 29 17 1/4/2021 24 24 18 8/1/2017 35 35 19 7/17/2018 38 38 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" . Maxim um data points = 58 H2 Upstream Hardness 4.6068 30.0000 0.1536 19 24.80 mg/L 30.00 mg/L 38.00 mg/L Date Data BDL=1/2DL Results 1 7/3/2017 32 32 Std Dev. 2 10/2/2017 22 22 Mean 3 1/5/2018 20 20 C.V. 4 4/2/2018 18 18 n 5 7/2/2018 22 22 10th Per value 6 10/1/2018 38 38 Average Value 7 1/2/2019 32 32 Max. Value 8 4/2/2019 12 12 9 7/2/2019 21 21 10 10/7/2019 20 20 11 2/6/2020 122 122 12 7/13/2020 32 32 13 10/5/2020 27 27 14 1/21/2021 27 27 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 Use "PASTE SPECIAL. Values" then "COPY" . Maximum data points = 58 26.8763 31.7857 0.8455 14 18.60 mg/L 31.79 mg/L 122.00 mg/L 39594 RPA, data - 1 4/12/2021 REASONABLE POTENTIAL ANALYSIS Par01 & Par02 Arsenic Date Data BDL=1/2DL Results 1 8/1/2017 < 5 2.5 Std Dev. 2 7/17/2018 < 5 2.5 Mean 3 2/11/2019 < 5 2.5 C.V. (default) 4 n 5 6 Mult Factor = 7 Max. Value 8 Max. Pred Cw 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 Use "PASTE SPECIAL. Values" then "COPY" . Maxim um data points = 58 0.0000 2.5000 0.6000 3 3.00 2.5 ug/L 7.5 ug/L 39594 RPA, data - 2 - 4/12/2021 REASONABLE POTENTIAL ANALYSIS Par03 Beryllium Date Data BDL=1/2DL Results 1 8/1/2017 < 1 0.5 Std Dev. 2 7/17/2018 < 1 0.5 Mean 3 2/11/2019 < 1 0.5 C.V. (default) 4 n 5 6 Mult Factor = 7 Max. Value 8 Max. Pred Cw 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 Use "PASTE SPECIAL. Values" then "COPY" . Maxim um data points = 58 Par04 Cadmium 0.0000 0.5000 0.6000 3 3.00 0.50 ug/L 1.50 ug/L Date Data BDL=1/2DL Results 1 8/1/2017 < 2 1 Std Dev. 2 7/17/2018 < 2 1 Mean 3 2/11/2019 < 2 1 C.V. (default) 4 n 5 6 Mult Factor = 7 Max. Value 8 Max. Pred Cw 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 Use "PASTE SPECIAL. Values" then "COPY" . Maximum data points = 58 0.0000 1.0000 0.6000 3 3.00 1.000 ug/L 3.000 ug/L 39594 RPA, data - 3 - 4/12/2021 REASONABLE POTENTIAL ANALYSIS Par07 Total Phenolic Compounds Date Data BDL=1/2DL Results 1 8/1/2017 < 5 2.5 Std Dev. 2 7/17/2018 52 52 Mean 3 2/11/2019 < 5 2.5 C.V. (default) 4 n 5 6 Mult Factor = 7 Max. Value 8 Max. Pred Cw 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 Use "PASTE SPECIAL. Values" then "COPY" . Maxim um data points = 58 Par10 Chromium, Total 28.5788 19.0000 0.6000 3 3.00 52.0 ug/L 156.0 ug/L Date Data BDL=1/2DL Results 1 8/1/2017 17 17 Std Dev. 2 7/17/2018 < 5 2.5 Mean 3 2/11/2019 < 5 2.5 C.V. (default) 4 n 5 6 Mult Factor = 7 Max. Value 8 Max. Pred Cw 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 Use "PASTE SPECIAL. Values" then "COPY" . Maximum data points = 58 8.3716 7.3333 0.6000 3 3.00 17.0 pg/L 51.0 pg/L 39594 RPA, data - 4 - 4/12/2021 REASONABLE POTENTIAL ANALYSIS Pall Copper Date Data BDL=1/2DL Results 1 1/3/2017 8 8 Std Dev. 2 4/3/2017 6 6 Mean 3 8/1/2017 11 11 C.V. (default) 4 7/17/2018 13 13 n 5 2/11/2019 23 23 6 Mult Factor = 7 Max. Value 8 Max. Pred Cw 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 Use "PASTE SPECIAL. Values" then "COPY" . Maxim um data points = 58 Par12 Cyanide 6.6106 12.2000 0.6000 5 2.32 23.00 ug/L 53.36 ug/L Date Data BDL=1/2DL Results 1 1/3/2017 < 5 5 Std Dev. 2 2/6/2017 < 5 5 Mean 3 3/1/2017 < 5 5 C.V. (default) 4 4/3/2017 < 5 5 n 5 5/1/2017 < 5 5 6 6/1/2017 < 5 5 Mult Factor = 7 8/1/2017 < 5 5 Max. Value 8 7/17/2018 < 5 5 Max. Pred Cw 9 2/11/2019 < 5 5 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 Use "PASTE SPECIAL. Values" then "COPY" . Maximum data points = 58 0.0000 5.00 0.6000 9 1.81 5.0 ug/L 9.1 ug/L 39594 RPA, data - 5 - 4/12/2021 REASONABLE POTENTIAL ANALYSIS Par14 Lead Date 8/1/2017 < 5 7/17/2018 < 5 2/11/2019 < 5 BDL=1/2DL Results 2.5 Std Dev. 2.5 Mean 2.5 C.V. (default) n Mult Factor = Max. Value Max. Pred Cw Use "PASTE SPECIAL. Values" then "COPY" . Maxim um data points = 58 Par17 & Par18 Nickel 0.0000 2.5000 0.6000 3 3.00 2.500 ug/L 7.500 ug/L Date Data BDL=1/2DL Results 1 8/1/2017 41 41 Std Dev. 2 7/17/2018 < 5 2.5 Mean 3 2/11/2019 < 5 2.5 C.V. (default) 4 n 5 6 Mult Factor = 7 Max. Value 8 Max. Pred Cw 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 Use"PASTE SPECIAL -Values" then "COPY" . Maxim um data points = 58 22.2280 15.3333 0.6000 3 3.00 41.0 pg/L 123.0 pg/L 39594 RPA, data - 6 - 4/12/2021 REASONABLE POTENTIAL ANALYSIS Par19 Selenium Date Data BDL=1/2DL Results 1 8/1/2017 < 5 2.5 Std Dev. 2 7/17/2018 < 5 2.5 Mean 3 2/11/2019 < 5 2.5 C.V. (default) 4 n 5 6 Mult Factor = 7 Max. Value 8 Max. Pred Cw 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 Use"PASTE SPECIAL -Values then "COPY" . Maxim um data points = 58 Par20 Silver 0.0000 2.5000 0.6000 3 3.00 2.5 ug/L 7.5 ug/L Date Data BDL=1/2DL Results 1 1/3/2017 < 5 2.5 Std Dev. 2 2/6/2017 < 5 2.5 Mean 3 3/1/2017 < 5 2.5 C.V. 4 4/3/2017 < 5 2.5 n 5 5/1/2017 < 5 2.5 6 6/1/2017 < 5 2.5 Mult Factor = 7 7/3/2017 < 1 0.5 Max. Value 8 8/1/2017 < 5 2.5 Max. Pred Cw 9 9/5/2017 < 1 0.5 10 10/2/2017 < 1 0.5 11 11/13/2017 < 1 0.5 12 12/4/2017 < 1 0.5 13 1/3/2018 2.46 2.46 14 2/5/2018 < 1 0.5 15 3/5/2018 < 1 0.5 16 4/2/2018 < 1 0.5 17 5/2/2018 < 1 0.5 18 6/5/2018 < 1 0.5 19 7/2/2018 < 1 0.5 20 8/6/2018 < 1 0.5 21 9/4/2018 < 5 2.5 22 10/1/2018 < 1 0.5 23 11/5/2018 < 5 2.5 24 12/3/2018 < 1 0.5 25 1/2/2019 < 1 0.5 26 2/11/2019 < 5 2.5 27 3/5/2019 < 1 0.5 28 4/2/2019 < 1 0.5 29 5/6/2019 < 1 0.5 30 6/3/2019 < 1 0.5 31 7/2/2019 < 1 0.5 32 8/5/2019 < 1 0.5 33 9/3/2019 < 1 0.5 34 10/7/2019 < 1 0.5 35 11/5/2019 < 1 0.5 36 12/2/2019 < 1 0.5 37 1/8/2020 < 1 0.5 38 2/4/2020 < 1 0.5 39 3/12/2020 < 1 0.5 40 4/22/2020 < 1 0.5 41 5/4/2020 < 1 0.5 42 6/1/2020 < 1 0.5 43 7/7/2020 < 1 0.5 44 8/11/2020 < 1 0.5 45 9/11/2020 < 1 0.5 46 10/5/2020 < 1 0.5 47 11/4/2020 < 5 2.5 48 12/15/2020 < 0.4 0.2 49 1/4/2021 < 0.4 0.2 50 2/3/2021 < 5 2.5 51 7/17/2018 < 5 2.5 52 53 54 55 56 57 58 Use "PASTE SPECIAL - Values" then "COPY" . Maximum data points= 58 0.9093 1.0365 0.8773 51 1.05 2.500 ug/L 2.625 ug/L 39594 RPA, data 7 - 4/12/2021 REASONABLE POTENTIAL ANALYSIS Par21 Zinc Date Data BDL=1/2DL Results 1 1/3/2017 84 84 Std Dev. 2 2/6/2017 174 174 Mean 3 3/1/2017 157 157 C.V. (default) 4 4/3/2017 71 71 n 5 5/1/2017 < 74 37 6 6/1/2017 104 104 Mult Factor = 7 8/1/2017 149 149 Max. Value 8 7/17/2018 127 127 Max. Pred Cw 9 2/11/2019 295 295 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 Use "PASTE SPECIAL. Values" then "COPY" . Maxim um data points = 58 75.0790 133.1111 0.6000 9 1.81 295.0 ug/L 534.0 ug/L 39594 RPA, data - 8 - 4/12/2021 Outfall 001 Maiden WWTP 0 II 0 Freshwater RPA - 95% Probability/95% Confidence Using Metal Translators NC0036949 MAXIMUM DATA POINTS = 58 TP/WTP Class: III 13.4899913 \ RECOMMENDED ACTION N- o RP, Predicted Max < 50% of Allowable Cw No Monitoring required N- o RP, Predicted Max < 50% of Allowable Cw No Monitoring required No - RP, Predicted Max < 50% of Allowable Cw - No Monitoring required N- o RP, Predicted Max < 50% of Allowable Cw No Monitoring required I i i i i i I i i i i i i i i I i i i i i I i i i i i i i i 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. - ---------------------------- BPJ; Limited dataset with all values < 30% of Allowable Cw - No Monitoring required N- o RP, Predicted Max < 50% of Allowable Cw - No Monitoring required REASONABLE POTENTIAL RESULTS n # Det. Max Pred Cw Allowable Cw Acute (FW): 2,520.4 Chronic (FW) 1,311.3 Max MDL =5 Chronic (HH): 506.8 Max MDL = 5 Acute: 481.84 Chronic: 56.82 Max MDL = 1 Acute: 29.421 Chronic: 6.154 Max MDL = 2 Acute: NO WQS Chronic: 2,622.E No value > Allowable Cw Acute: 8,116.8 Chronic: 1,246.3 Acute: 118.6 Chronic: 96.2 Tot Cr value(s) > 5 but < Cr VI Allowable Cw 3 1 51.0 Max reported value = 17 Note: n <9 C.V. (default) Limited data set Acute: 96.64 Chronic: 84.12 No value > Allowable Cw Acute: 163.1 Chronic: 43.7 Max MDL = 10 7.5 C.V. (default) NO DETECTS 1.50 C.V. (default) NO DETECTS 3.000 C.V. (default) NO DETECTS \ �_y u a a y \ QQ �_\ u 9.1 C.V. (default) NO DETECTS 3 0 Note: n < 9 Limited data set 3 0 Note: n < 9 Limited data set 3 0 Note: n < 9 Limited data set 3 1 Note: n < 9 Limited data set 5 5 Note: n < 9 Limited data set 9 0 Note: n < 9 Limited data set & wn a \ ƒ -rob ƒ ƒ \ \ \ ƒ -rob ,d e NC STANDARDS OR EPA CRITERIA Applied Chronic Acute Standard 150 FW(7Q10s) 340 10 11I/WS(Qavg) 6.5 FW(7Q10s) 65 0.7039 FW(7Q10s) 3.9689 \ / o o 142.5668 FW(7Q10s) 1094.9570 11 FW(7Q10s) 16 9.6225 FW(7Q10s) 13.0371 5 FW(7Q10s) 22 § 0 0 ; ; ;0 ;0 ;0 ; 00 ; PARAMETER Arsenic Arsenic E } to Cadmium Total Phenolic Compounds Chromium III Chromium VI Chromium, Total Copper Cyanide Maiden WWTP NC0036949 No - RP, Predicted Max < 50% of Allowable Cw - No Monitoring required N- o RP, Predicted Max < 50% of Allowable Cw No Monitoring required No - RP, Predicted Max < 50% of Allowable Cw No Monitoring required - ---------------------------- BPJ; Industrial User and PT program dropped after 2018 detection. All values non -detect since. Apply quarterly monitoring without limit. No RP, Predicted Max < 50% of Allowable Cw - No Monitoring required Acute: 726.677 Chronic: 33.43 8 Max MDL = 5 Acute (FW): 3,025.1 Chronic (FW): 396.6 No value > Allowable Cw _ Chronic (WS) No value > Allowable Cw Acute: 415.1 Chronic: 43.7 Max MDL = 5 Acute: 3.278 Chronic: 0.525 14 value(s) > Allowable Cw Acute: 1,134.8 Chronic: 1,3 50.5 No value > Allowable Cw 7.500 C.V. (default) NO DETECTS 123.0 C.V. (default) 7.5 C.V. (default) NO DETECTS 534.0 C.V. (default) 3 0 Note: n < 9 Limited data set 3 1 Note: n < 9 Limited data set 3 0 Note: n < 9 Limited data set 9 8 Note: n < 9 Limited data set a on a a on on a en a en a TD 3.8250 FW(7Q10s) 98.0286 45.3702 FW(7Q10s) 408.0855 25.0000 WS(7Q10s) 5 FW(7Q10s) 56 0.06 FW(7Q10s) 0.4422 154.4847 FW(7Q10s) 153.0807 0 2 0 0 2 2 0 2 0 2 0 2 N _1Z U U z Selenium > 6 C N Permit No. NC0039594 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. NC0039594 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. NC0039594 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. NC0039594 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)] 30 Data provided in DMRs Average Upstream Hardness (mg/L) [Total as, CaCO3 or (Ca+Mg)] 31.79 Data provided in DMRs 7Q10 summer (cfs) 12.0 NPDES Files 1 Q 10 (cfs) 9.94 Calculated in RPA Permitted Flow (MGD) 1.0 NPDES Files Date: 4/6/2021 Permit Writer: Nick Coco Page 4 of 4 -1 0 m Maiden WWTP NC0039594 @ (5 To 0 E @ � s c 0 E 1- � / k / k #» e e» o e o t e= e# e e g e g w 0 w@ w m f f@ m 0 = e e = e » _ » e = _ » m » » e » e e e e e e e e e e e e e e e e e m November-19 December-19 January-20 0 rsl \ 0 0 0 0 \ / p t t t % 2 N. / § \ j ƒ / < 2 \ LL e m October-20 November-20 December-20 NL. q e e \ / 9/ q q q 9/ 2 2 $ - / § > \ E / ƒ / ®2 - < k $ October-21 November-21 December-21 m m m e# t»»__» t=# e m e e e m m m e m##= o=» e e@@@ m@ m m@ f w@ 0 e m@ 0- m g m@@ 0 g Cr) Is)* e m# m m m m e m e e m# D m m» e» e e e m e e= m e» e e e e e e e e e e e e e e e e e e e == e e e e= e e e January-17 » _ _oo / \ \ \ \ f % % % / \ \ \ \ % % % % _ / / & $ a a a = ro _ / / & $ E _ ) / & 6 c a \ M 2/[[ M s- c a c\ m too [ E E\= a c= ƒ » ® � < 0 / / % \ ƒ G < -I-, / ® 2 m m ( NI Di F Overall TSSD removal rate cc cc co co e e t m# e m m=# m= e e=» Cr) N e f w Cr) g @ e Cr) f g@@ = e e e = _ » e » _ _ _ _ _ _ _ _ _ e e e e e e e e e e e e e e e e e e October-19 November-19 December-19 January-20 0 rsl \ 0 0 0 0 \ / p t t t % 2 N. / § \ j ƒ / < 2 \ LL e m October-20 November-20 December-20 NL. q e e \ / 9/ q q q 9/ 2 20 - / K > \ E / ƒ / ®2 - < k $ October-21 November-21 December-21 t o m o m t e o= e o# e e t» e o m o» m= e=» e e m f 71- f@ c m m g m@@@ e f @ 0 f f w@@ e g f f e@ m e m e m m e » » » » » e » = e » » = e = e = e m m m » m e = » _ e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e January-17 LL & October-17 November-17 December-17 \ \ CO CO \ 2 ƒ / § \ E / ƒ / < < m too k e m October-18 November-18 December-18 January-19 February-19 Overall BOD removal rate NH3/TRC WLA Calculations Facility: Maiden WWTP PermitNo. NC0039594 Prepared By: Nick Coco Enter Design Flow (MGD): Enter s7Q10 (cfs): Enter w7Q10 (cfs): 1 12 22 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) 12 1 1.55 17.0 0 11.44 149 Capped at 28 ug/L. Same as current permit limit. Maintain limit. Fecal Coliform Monthly Average Limit: (If DF >331; Monitor) (If DF<331; Limit) Dilution Factor (DF) Ammonia (Summer) Monthly Average Limit (mg NH3-N/I) s7Q10 (CFS) DESIGN FLOW (MGD) DESIGN FLOW (CFS) STREAM STD (MG/L) Upstream Bkgd (mg/I) IWC (%) Allowable Conc. (mg/I) 12 1 1.55 1.0 0.22 11.44 7.0 Same as current permit limit. Maintain limit. Ammonia (Winter) Monthly Average Limit (mg NH3-N/I) w7Q10 (CFS) 200/100mI DESIGN FLOW (MGD) DESIGN FLOW (CFS) STREAM STD (MG/L) 8.74 Upstream Bkgd (mg/I) IWC (%) Allowable Conc. (mg/I) Total Residual Chlorine 1. Cap Daily Max limit at 28 ug/I to protect for acute toxicity 22 1 1.55 1.8 0.22 6.58 24.2 Same as current permit limit. Maintain limit. 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) m 0 J J N O.0 o.0 C C MERCURY WQBEL/TBEL EVALUATION No Limit Required No MMP Required J 0.0 cr C 61 ul Cr) m 0 0 N 0 c-1 Z d II C7 a) f737. 2 a) .. E d co z z ,., >" E T--1 U a) N ap d N m I J W m C7 o O c-1 0' N Permitted Flow = a) 7 f6 > C W J C ▪ CO 0 in O i II a) J 4- C7 773 d O w 2 c-I m ID 0 a) c▪ o f6 O H N co rn 0 0 0 N N N i i S- O O O (1) (1) (1) OA OA OA to co co > > > Q Q Q to io io 7 7 7 C C C C C C Q Q Q J J J OA OA O▪ A C C C CO N m %-1 N m N cr cr CO N m c-1 N m N cr cr CO N m c-1 N m oo a r. co N N Maiden WWTP/NC0039594 rn 0 N m cri m cri 00 O N N N N N n O N 00 c-I N 00 c—I N Ol O # of Samples J 0.0 J W CO DIVISION OF WATER QUALITY April 22, 2002 To: Dave Goodrich, Supervisor NPDES Unit From: Susan A. Wilson, Environmental Engineer NPDES Unit Subject: Guidance Regarding Conductivity and Fecal Coliform Monitoring INSTREAM CONDUCTIVITY AND FECAL COLIFORM MONITORING GUIDANCE Fecal coliform monitoring: Instream monitoring for fecal coliform may be removed from municipal or domestic wastewater permits (major or minor), unless the water body is impaired due to coliform or is a Class B waterbody. Conductivity monitoring: Instream monitoring for conductivity may be removed from all 100% domestic wastewater permits. Instream conductivity monitoring must remain for industrial discharges and domestic discharges that have a pretreatment program. C:\Users\Nick\Downloads\OneDrive_2021-04-19\NC0039594 Maiden WWTP\fecal and conductivity monitoring.doc N 10 N CO O O O O Q 0 MONITORING REPORT(MR) VIOLATIONS for: Permit: NC0039594 MRs Betweei 1 - 2017 and 3 - 2021 Violation Action: Subbasin:% Param Nam( % Facility Name: Major Minor: % REGION: Mooresville COUNTY: Catawba FACILITY: Town of Maiden - Maiden WWTP NC0039594 F 5 W a Limit Violation VIOLATION ACTION VIOLATION TYPE H 2 J LL O ct H Q Z 2 PARAMETER LOCATION No Action, BPJ No Action, BPJ No Action, BPJ No Action, BPJ No Action, BPJ No Action, BPJ No Action, BPJ No Action, BPJ No Action, BPJ No Action, BPJ No Action, BPJ No Action, BPJ No Action, BPJ No Action, BPJ No Action, BPJ No Action, BPJ E E E E E E E E E E E E E E E E E • E • E E • E • E • E E • E • ID • 7:3 • ID E• TD Ea) Ea) E G E • W E • W E a) 'x -0 'x -0 'x -0 'x -0 'x -0 'x -0 'x -0 'x -0 'x -0 'x - 'x - 'x - 'x - 'x - 'x - 'x -D as w as w as a) as W co as co as a) as a) as W as W m CU m CU m CO m WWW CUCUCU >, x >, x >, x >, x >, x >, x >, x >, x >, x >, x >, x >, x >, x >, x >, x >, x .( W .� W .� W .� W .� W .� W .� W .( w .( w .( W .� W .� W .� W .� W .( w .( w O 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 co • co • I— co • co • co • co co • co co • co • co • co • co • co • co (3) (3) O (3) (3) (3) (3) (3) (3) (3) (3) (3) (3) (3) (3) (3) N N M N N N N N N N N N N N (N (N CO CO CO CO CO CO CO CO CO CO CO CO CO CO CO CO N N N N N N N N N N N N N N N N rn 0) 0) 0) 0) 0) 0) 0) 0) 0) 0) 0) 0) 0) 0) 0) Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y a) a) a) N N N N N N N N N N N N N a) N N N N N N N N N N N N 4) N N X X X X X X X X X X X X X X X X co co co co co co co co co co co co co co co M M O) CO W M \ M V O N N N O M V O O N O N N N O N co N \ \ N N co M M V N N N CO N- o 0 0 0 o O O O O O O O O O O O — m m m m m m m m m m m m m m m m (7(7(7(7(77 7 7 7 7 7 7 7 7 7 (7) U) U) U) U) U) N 4) 4) N N N N N N N N _ To To To To To To To To To To To To To To To To F F F F F F F F F F F F F F F F _ N ai ai ai ai ai ai ai ai ai ai ai ai ai ai N C C C C C C C C C C C C C C C C O O O O O O O O O O O O O O O O _c L L L L L L L L L L L L L L L C C C C C C C C C C C C C C C C N N N N N N N N N N N N N N N N 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 — — — — — — — — — — — — — — — W W W W W W W W W W W W W W W W J J Q LL H D O O O O O O O O O O O O O 0 0 0 O O O O O O O O O O O O O O 0 0 0 N- N- N- N- N- N- N- N- N- N- N- N- N- N- N- N- Z F E O O - O - O - O - O - O - O - O - O - O - O - O - O - O - O O 0 N N N N N N N N N N N N N N N N a Z W - N N M M M V • O N- O O - O - O - O - O O O O O O O O O O O O 2 MONITORING REPORT(MR) VIOLATIONS for: Violation Action: % Subbasin: % Param Nam( % Major Minor: REGION: Mooresville COUNTY: Catawba FACILITY: Town of Maiden - Maiden WWTP NC0039594 F 5 W a Limit Violation VIOLATION ACTION VIOLATION TYPE H 2 J LL W O j H Q Z W 2 FREQUENCY PARAMETER LOCATION J J LL H No Action, BPJ No Action, BPJ No Action, BPJ No Action, BPJ No Action, BPJ No Action, BPJ No Action, BPJ No Action, BPJ No Action, BPJ No Action, BPJ No Action, BPJ No Action, BPJ No Action, BPJ No Action, BPJ No Action, BPJ No Action, BPJ E E E E E E E E E E E E E E E E E E E E W E W Ew E W E W E W E W E W E W ii E W E W E W E G) 'x -0 'x -0 'x -0 'x -0 'x -0 'x -0 'x -0 'x -0 'x -0 'x - 'x - 'x - 'x - 'x - 'x - 'x -D X >, X >, X >, X >, X >, X >, X >, X >, X >, X >, X >, X >, X >, X >, X >, X ( w .( W .( W .( W .( W .( W .( W .( W .( W .( W .( W .( W .( W .( W .( W .( W 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 O O O O O M M M M M I— N (3) (3) (3) (3) O N N N N M O O 7 O co N- M (3) O (3) N M N co O O co co CO O N (3) (3) M M M M (V (N CO CO CO CO CO CO CO CO CO CO CO CO CO CO CO CO N N N N N N N N N N N N N N N N 0) 0) 0) Cr) Cr) Cr) Cr) Cr) Cr) Cr) 0) 0) 0) 0) Cr) Cr) Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y a) a) a) N N N N N N N N N N N N N a) N N N N N N N N N N N N N N N X X X X X X X X X X X X X X X X co co co co co co co co co co co co co co co M \ \ N O) In CO \ M W O) CO N O) O O N co O O N O O N O O 7 N N ao ao ao o) o) o) o) o) o) o) 0 0 0 O O O O O O O O O O O ( TO m m m m m m m m m m m m m m fn N N N N N N N N N N N N N N () U) N N 4) N N N N N N N N N N N U) _ TO (6 TO (6 (6 (6 (6 (6 (6 (6 (6 (6 (6 TO (6 (6 F F F F F F F F F F F F F F F F N ai ai ai ai ai ai ai ai ai ai ai ai ai ai ai C C C C C C C C C C C C C C C C O O O O O O O O O O O O O O O O _c L L L L L L L L L L L L L L L C C C C C C C C C C C C C C C C N N N N N N N N N N N N N N N N 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 W W W W W W W W W W W W W W W W O O O O O O O O O O O O O O O O 0 O O O O O O O O O O O O O O O O Z F 0 0 O O O O O O O O O O O O O O O O 0 0 N N N N N N N N N N N N N N N N Z W N- CO CO CO rn rn rn rn rn rn rn 0 0 0 O o 0 0 0 0 0 0 0 0 0 0 x— 2 MONITORING REPORT(MR) VIOLATIONS for: Violation Action: % Subbasin: % Param Nam( % Major Minor: REGION: Mooresville COUNTY: Catawba FACILITY: Town of Maiden - Maiden WWTP NC0039594 1- 5 W a Limit Violation VIOLATION ACTION VIOLATION TYPE H 2 J LL O ct H co Z W FREQUENCY Proceed to NOD (O 0) Proceed to NOD 0) N co co Y Y a) a) a) a) X X co co Z O w 1- 1- O ❑ o > o O PARAMETER LOCATION 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 NC0039594 I11 121 19/10/24 117 Type 18 [ = i Inspector Fac Type 19 i G I 201 21111111iillliliiiIIiiillliilIliiiIlliiiiiiii 166 Inspection Work Days Facility Self -Monitoring Evaluation Rating B1 QA Reserved 6712.0 I 70I4 I 71 IN I 72 I N I 73I I 174 L� 1 751 180 1 11111 Section B: Facility Data Name and Location of Facility Inspected (For Industrial Users discharging to POTW, also include POTW name and NPDES permit Number) Maiden WWTP 2090 W Finger St Maiden NC 28650 Entry Time/Date 09:35AM 19/10/24 Permit Effective Date 17/07/01 Exit Time/Date 01:OOPM 19/10/24 Permit Expiration Date 20/07/31 Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s) /// Timothy Ray Hedrick/ORC/828-428-5032/ Other Facility Data Name, Address of Responsible Official/Title/Phone and Fax Number Contacted Todd Herms,19 N Main Ave Maiden NC 28650/Town Manager/828-428-5000/8284285017 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 Wes Bell DWR/MRO WQ/704-663-1699 Ext.2192/ Signature of Management Q A Reviewer Agency/Office/Phone and Fax Numbers Date Andrew Pitner DWR/MRO WQ/704-663-1699 Ext.2180/ EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete. Page# 1 31 NPDES yr/mo/day NC0039594 111 121 19/10/24 117 Inspection Type 18 [j 1 Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary) On -site Representatives: The following Town personnel were in attendance during the inspection: Tim Hedrick/ORC, Chris Bagshaw/Backup ORC and Jeff Schronce/Operator-Maintenance. Page# 2 Permit: NC0039594 Inspection Date: 10/24/2019 Owner - Facility: Maiden VVVVTP Inspection Type: Compliance Evaluation Permit (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? Yes No NA NE ❑ ❑ • ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ Comment: The facility description will need to be updated during the next permit renewal process to remove blowers from the SBR tanks line item. Aeration is provided in the SBR tanks by surface aerators; however, blowers are used for the aerobic digesters. The last compliance evaluation inspection by DWR staff was performed on 10/17/17. 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 operatc 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? Yes No NA NE • • • ❑ ❑ • Page# 3 Permit: NC0039594 Inspection Date: 10/24/2019 Owner - Facility: Maiden VVVVTP Inspection Type: Compliance Evaluation Record Keeping Yes No NA NE Comment: The records reviewed during the inspection were organized and well maintained. Discharge Monitoring Reports (eDMRs) were reviewed for the period September 2018 through August 2019. No effluent limit violations were reported and all monitoring frequencies were correct. Revised July and August 2019 eDMRs will be submitted to correct a fecal coliform result. In addition, a March 2019 eDMR will be revised to correct an effluent silver result (incorrectly reported by contracted lab). The ORC and staff must continue to ensure that the contracted labs use the 1.0 ug/L detection level for silver. 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: On -site field analyses (dissolved oxygen, pH, temperature, conductivity, TRC) are performed under the Town's laboratory certification #5532. Water Tech Labs and R&A Labs have also been contracted to provide analytical support. The ORC and staff must ensure to report effluent total residual chlorine (TRC) values down to the lowest standard verified on the TRC meter (currently 15 ug/L based on the 4/4/19 annual curve verification). Influent Sampling Yes No NA NE # 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: The subject permit requires composite BOD and TSS and influent samples. The sampler temperature was less than four degrees Celsius and collecting 120 ml. aliquots at the time of the inspection. Effluent Sampling Is composite sampling flow proportional? Is sample collected below all treatment units? Is proper volume collected? Yes No NA NE • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ Page# 4 Permit: NC0039594 Inspection Date: 10/24/2019 Owner - Facility: Maiden VVVVTP Inspection Type: Compliance Evaluation Effluent Sampling 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)? Yes No NA NE • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ Comment: The subject permit requires composite and grab effluent samples. The sampler temperature was less than four degrees Celsius and collecting 250 ml. aliquots at the time of the inspection. The ORC and staff must ensure that all dissolved oxygen measurements on the effluent are reported on the applicable eDMR. Upstream / Downstream Sampling Is the facility sampling performed as required by the permit (frequency, sampling type, anc sampling location)? Comment: 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? Yes No NA NE • ❑ ❑ ❑ Yes No NA NE • ❑ ❑ ❑ • ❑ ❑ ❑ Comment: The wastewater treatment facility appeared to be properly operated and well maintained. Process control measurements were being documented and maintained on -site. Bar Screens Type of bar screen a.Manual b.Mechanical Are the bars adequately screening debris? Is the screen free of excessive debris? Is disposal of screening in compliance? Is the unit in good condition? Yes No NA NE • • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ Comment: Screenings and grit are disposed at the County Landfill by a contracted company. Flow Measurement - Influent # Is flow meter used for reporting? Is flow meter calibrated annually? Is the flow meter operational? Yes No NA NE • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ Page# 5 Permit: NC0039594 Inspection Date: 10/24/2019 Owner - Facility: Maiden VVVVTP Inspection Type: Compliance Evaluation Flow Measurement - Influent Yes No NA NE (If units are separated) Does the chart recorder match the flow meter? ❑ ❑ • ❑ Comment: The flow meter is calibrated annually and was last calibrated on 11/12/18 by Clearwater. This Office requests as part of the next annual flow meter calibration (by contracted company), a comparison of the head measurements from the current measurement location to the standardized head measurement location (2/3 distance in converging section from throat). A copy of this comparison/verification should be submitted to this Office once completed. 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: Pump Station - Influent Is the pump wet well free of bypass lines or structures? Is the wet well free of excessive grease? Are all pumps present? Are all pumps operable? Are float controls operable? Is SCADAtelemetry available and operational? Is audible and visual alarm available and operational? Yes No NA NE • • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ Yes No NA NE • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ ❑ ❑ • ❑ Comment: The telemetry type alarm system (high level) functioned properly during the on -site test. Sequencing Batch Reactors Type of operation: Is the reactor effluent free of solids? Does minimum fill time correspond to the peak hour flow rate of the facility? Is aeration and mixing cycled on and off during fill? The operator understands and can explain the process? Yes No NA NE Duplex • ❑ ❑ ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ • ❑ ❑ ❑ Comment: Both SBR tanks were operational and in service. Each SBR is equipped with two surface aerators and a decanter. One of the aerators was in the process of being repaired. Page# 6 Permit: NC0039594 Inspection Date: 10/24/2019 Owner - Facility: Maiden VVVVTP Inspection Type: Compliance Evaluation Sequencing Batch Reactors 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: Disinfection -Liquid Is there adequate reserve supply of disinfectant? (Sodium Hypochlorite) Is pump feed system operational? Is bulk storage tank containment area adequate? (free of leaks/open drains) Is the level of chlorine residual acceptable? Is the contact chamber free of growth, or sludge buildup? Is there chlorine residual prior to de -chlorination? Comment: Yes No NA NE Yes No NA NE • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ ❑ ❑ • ❑ • ❑ ❑ ❑ Yes No NA NE • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ De -chlorination Yes No NA NE Type of system ? Liquid Is the feed ratio proportional to chlorine amount (1 to 1)? ❑ ❑ • ❑ Is storage appropriate for cylinders? ❑ ❑ • ❑ # Is de -chlorination substance stored away from chlorine containers? • ❑ ❑ ❑ Comment: Are the tablets the proper size and type? Are tablet de -chlorinators operational? Number of tubes in use? Comment: Effluent Pipe ❑ ❑ ■ ❑ ❑ ❑ • ❑ Yes No NA NE Page# 7 Permit: NC0039594 Inspection Date: 10/24/2019 Owner - Facility: Maiden VVVVTP Inspection Type: Compliance Evaluation 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: The effluent appeared clear with no floatable solids or foam. 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? Yes No NA NE ❑ ❑ ❑ • ❑ ❑ ❑ • • ❑ • ❑ Yes No NA NE • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ Comment: Both aerobic digesters were operational and in service. Bio-solids are transported (by WWTP staff) to the Regional Compost Facility located in Hickory, N.C. for continued treatment and disposal. Standby Power Is automatically activated standby power available? Is the generator tested by interrupting primary power source? Is the generator tested under load? Was generator tested & operational during the inspection? Do the generator(s) have adequate capacity to operate the entire wastewater site? Is there an emergency agreement with a fuel vendor for extended run on back-up power? Is the generator fuel level monitored? Yes No NA NE • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ Comment: The generator is exercised weekly and placed under load monthly. The generator is tested/serviced twice per year by a contracted company (Clark Power Services). Page# 8 www.pacelabs.com ANALYTICAL RESULTS Project: TOWN OF MAIDEN EFF Pace Project No.: 92515496 Pace Analytical Services, LLC 1c6 Short Si. KernersviHe, NC 27284 336-996-2841 Sample: TOWN OF MAIDEN EFF Lab ID: 92515496001 Collected: 01/05/21 08:34 Received: 01/07/21 13:20 Matrix: Water Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qual 200.8 MET ICPMS Silver Date: 01/19/2021 08:12AM Analytical Method: EPA 200.8 Rev 5.4 Preparation Method: EPA 200.8 Rev 5.4 Pace Analytical Services - Asheville ND ug/L 0.40 1 01/16/21 01:39 01/18/21 14:29 7440-22-4 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Page 5 of 10 (eAnaIYtica/ www.peceiebs.com ANALYTICAL RESULTS Project: Town of Maiden -Effluent Pace Protect No.: 92509618 Pace Analytical Services, LLC 106 Short St, Kernersvilie, NC 27284 336-996-2841 Sample: Town of Maiden -Effluent Lab ID: 92509618001 Collected: 12/02/20 08:34 Received: 12/04/20 08:00 Matrix: Water Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qual 200.8 MET ICPMS Silver Date: 12/21/2020 09:08 AM Analytical Method: EPA 200.8 Rev 5.4 Preparation Method: EPA 200.8 Rev 5.4 Pace Analytical Services - Asheville ND ug/L 0.40 1 12/15/20 01:00 12/17/20 19:09 7440-22-4 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except In full, without the written consent of Pace Analytical Services, LLC. Page 5 of 9 Effluent Toxicity Report Form -Chronic Fathead Minnow Multi -Concentration Test Date:10/30/2017 Faddy: Town of Maiden NPDES # NC00 39594 x Sign x Control Labo - .. . Research & a cal boratories rrr. slg u ponsi arge ry supervisor MAIL ORIIi1NAL 181: Pipe #: 001 County Catawba comments Final Effluent HAL #41628-01, 41 /M-01, 41844-01 tal Set nvtrOnmen enees Branch Division of Water Quality NC DENR 1621 Mail Service Center Raleigh, NC 27699-1621 Test Initiation Date/Tlme 10/18/2017 / 2:12PM % Eff. Repi. Surviving # Original # Wt/original (mg) 5.50 Surviving # Original # WUoriginai (mg) 8.001 Surviving # Original # Wt/original (mg) 11.00 Surviving # Original # WUoriginal (mg) 18.50 Surviving # Original # Wt/original (mg) 22.00 Surviving # Original # WUoriglnal (mg) Water Quality Data Control pH (SU) Init/Fin 00 (mg/L) IrtiLFin Temp (C) Ini/Fin High Concentration pH (SU) Init/Fin D0(mg/L)tntiFin Temp (C) Init/Ftn Sample Collection Start Date Grab Composite (Duration) Hardness (mg/L) Alkalinity (mg/L) Conductivity (umhos/cm) Chtorine(mg/1.) Terrp. at Receipt (°C) Dilution H2O Hardness (mglp) Alkalinity (mg/L) Conductivity (umhos/cm) 1 2 3 4 Avg WUSurv. Control! 0.5410l Test Organisms 15 15 15 15 15 15 15 15 0.5847 0.5187 0.5520 0.5087 15 15 15 15 15 15 15 15 0.6307 0.5800 0.6113 0.5207 15 15 15 15 15 15 15 15 0.5813 0.5800 0.8320 0.5947 15 15 15 15 15 15 15 15 0.8047 0.5553 0.6380 0.8527 14 15 15 15 15 15 15 15 0.8271 0.5820 0.5780 0.5580 14 15 15 15 15 15 15 15 0.5428 0.6180 0.8033 0.5847 Day % Survival 100.0 E Cultured brHouse M. Outside Supplier Avg Wt (mg)' 0.54101 Hatch Date: 10/18/2017 % Survival 100.0 Avg Wt (mg)) % Survival Avg Wt (mg) % Survival Avg Wt (mg) % Survival Avg Wt (mg) % Survival Avg Wt (mg) 0.58071 100.01 0.59201 100.0 0.81271 98.3' 0.5863 98.3 0.5872 1 2 3 4 6 7.45 / 7.28 7.35 / 7.15 7.17 17.18 7.21 / 7.14 7.29 / 7.09 7.34 / 7.11 7.39 / 7.08 8.5 / 8.0 8.5 / 8.1 8.8 / 8.2 8.8 / 8.0 8.5 / 8.1 8.5 / 8.2 8.8 / 8.2 24.5 / 24.7 24.4 / 24.8 24.6 / 24.6 24.5 / 24.8 24.8 / 24.5 24.6 / 24.4 24.5 / 24.7 0 2 3 6 7.69 / 7.56 7.60 / 7.43 7.37 / 7.40 7.35 / 7.30 7.41 / 7.24 7.34 / 7.21 7.38 / 7.19 8.8 / 8.2 8.8 / 8.3 8.5 / 8.2 8.5 / 8.2 8.5 / 8.1 8.6 / 8.2 8.4 / 8.1 24.8 / 24.8 24.4 / 24.7 24.5 / 24.7 24.6 / 24.7 24.6 / 24.7 24.7 / 24.5 24.5 / 24.5 1 2 3 10/16/2017 10/19/2017 10/22/2017 24 24 24 43 45 40 35 36 32 335 349 358 0.01 0.02 0.04 2.1 3.1 2.1 47 38 i90 Survival Growth Normal rt; FI) Hom. Var. r; Fir NOEC 22.00 22.00 LOEC >22 >22 ChV >22 >22 Method Steels Dunnetts Hatch Time: >1600 Overall Result ChV >22 Slats Survival Growth Conc. Critical Calculated Critical Calculated 5.50 10 23 2.41 -1.5010 8.00 10 24 2.41 -1.9298 11.00 10 25 2.41-2.7125 16.50 10 23 2.41-1.7130 22.00 10 23.5 2.41-1.7481 DWQ Foml AT-5 (1/04) Permit No. NC0039594 Annual Monitoring and Pollutant Scan Month 05 Outfall 001 Facility Name Town of Maiden Date of sampling 08/01/2017 ORC Timothy R. Hedrick Phone (828) 428-5032 Analytical Laboratories Research & Analytical Labs. GEL Labs. and Water Tech Labs. Year ? / -) Parameter Sample Type Analytical Method Quantitation Sample Result Units of Measurem ent Number of samples Level Ammonia (as N) Composite SM4500NH3 0.2 <0.2 mg/L 1 Dissolved oxygen Grab SM4500-OG 0.1 5.8 mg/L 1 Nitrate/Nitrite Composite SM4500NO3 0.1 3.4 mg/L 1 Total Kjeldahl nitrogen Composite SM4500NH3 0.14 2.8 mg/L 1 Total Phosphorus Composite SM 4500P E 0.16 4.5 mg/L 1 Total dissolved solids Composite SM 2540C 1.0 225 mg/L 1 Hardness Composite EPA 200.7 1.0 35 mg/L 1 Chlorine (total residual, TRC) Grab SM4500C1 G 20 29 ug/L 1 Oil and grease Grab EPA 1664A 5.6 <5.6 mg/L 1 Metals (total recoverable), cyanide and total phenols Antimony Composite EPA 200.7 0.025 <0.005 mg/L 1 Arsenic Composite EPA 200.7 0.005 <0.005 mg/L 1 Beryllium Composite EPA 200.7 0.0010 <0.001 mg/L 1 Cadmium Composite EPA 200.7 0.002 <0.002 mg/L 1 Chromium Composite EPA 200.7 0.005 0.017 mg/L 1 Copper Composite EPA 200.7 0.005 0.011 mg/L 1 Lead Composite EPA 200.7 0.005 <0.005 mg/L 1 Mercury Composite EPA 245.1 0.200 (DL) 1.82 ng/L 1 Nickel Composite EPA 200.7 0.005 0.041 mg/L 1 Selenium Composite EPA 200.7 0.005 <0.005 mg/L 1 Silver Composite EPA 200.7 0.005 <0.005 mg/L 1 Thallium Composite EPA 200.7 0.005 <0.005 mg/L 1 Zinc Composite EPA 200.7 0.010 0.149 mg/L 1 Cyanide Grab SM4500CNE 0.005 <0.005 mg/L 1 Total phenolic compounds Grab EPA 420.1 0.005 <0.005 mg/L 1 Volatile organic compounds Acrolein Grab EPA 624 0.100 <0.100 mg/L 1 Acrylonitrile Grab EPA 624 0.100 <0.100 mg/L 1 Benzene Grab EPA 624 0.010 <0.010 mg/L 1 Bromoform Grab EPA 624 0.010 <0.010 mg/L 1 Carbon tetrachloride Grab EPA 624 0.010 <0.010 mg/L 1 Chlorobenzene Grab EPA 624 0.010 <0.010 mg/L 1 Chlorodibromomethane Grab EPA 624 0.010 <0.010 mg/L 1 Chloroethane Grab EPA 624 0.010 <0.010 mg/L 1 2-chloroethylvinyl ether Grab EPA 624 0.010 <0.010 mg/L 1 Chloroform Grab EPA 624 0.010 <0.010 mg/L 1 Dichlorobromomethane Grab EPA 624 0.010 <0.010 mg/L 1 1,1-dichloroethane Grab EPA 624 0.010 <0.010 mg/L 1 1,2-dichloroethane Grab EPA 624 0.010 <0.010 mg/L 1 Trans-1,2-dichloroethylene Grab EPA 624 0.010 <0.010 mg/L 1 Parameter Sample Type Analytical Method Quantitation Level Sample Result Units of Measurem ent Number of samples Volatile organic compounds (Cont.) 1,1-dichloroethylene I Grab EPA 624 0.010 <0.010 mg/L 1 Form - DMR- PPA-1 Page 1 Annual Monitoring and Pollutant Scan Permit No. NC0039594 Month )41.1505-1- Outfall 001 Year c90 I % 1,2-dichloropropane Grab EPA 624 0.010 <0.010 mg/L 1 i 1,3-dichloropropylene Grab EPA 624 0.010 <0.010 mg/L 1 Ethylbenzene Grab EPA 624 0.010 <0.010 mg/L 1 Methyl bromide Grab EPA 624 0.010 <0.010 mg/L 1 Methyl chloride Grab EPA 624 0.010 <0.010 mg/L 1 Methylene chloride Grab EPA 624 0.010 <0.010 mg/L 1 1,1,2,2-tetrachloroethane Grab EPA 624 0.010 <0.010 mg/L 1 Tetrachloroethylene Grab EPA 624 0.010 <0.010 mg/L 1 Toluene Grab EPA 624 0.010 <0.010 mg/L 1 1,1,1-trichloroethane Grab EPA 624 0.010 <0.010 mg/L 1 1,1,2-trichloroethane Grab EPA 624 0.010 <0.010 mg/L 1 Trichloroethylene Grab EPA 624 0.010 <0.010 mg/L 1 Vinyl chloride Grab EPA 624 0.010 <0.010 mg/L 1 Acid -extractable compounds mg/L P-chloro-m-creso Grab EPA 625 0.010 <0.010 mg/L 1 2-chlorophenol Grab EPA 625 0.010 <0.010 mg/L 1 2,4-dichlorophenol Grab EPA 625 0.010 <0.010 mg/L 1 2,4-dimethylphenol Grab EPA 625 0.010 <0.010 mg/L 1 4,6-dinitro-o-cresol Grab EPA 625 0.050 <0.050 mg/L 1 2,4-dinitrophenol Grab EPA 625 0.050 <0.050 mg/L 1 2-nitrophenol Grab EPA 625 0.010 <0.010 mg/L 1 4-nitrophenol Grab EPA 625 0.050 <0.050 mg/L 1 Pentachlorophenol Grab EPA 625 0.050 <0.050 mg/L 1 Phenol Grab EPA 625 0.010 <0.010 mg/L 1 2,4,6-trichlorophenol Grab EPA 625 0.010 <0.010 mg/L 1 Base -neutral compounds Acenaphthene Grab EPA 625 0.010 <0.010 mg/L 1 Acenaphthylene Grab EPA 625 0.010 <0.010 mg/L 1 Anthracene Grab EPA 625 0.010 <0.010 mg/L 1 Benzidine Grab EPA 625 0.050 <0.050 mg/L 1 Benzo(a)anthracene Grab EPA 625 0.010 <0.010 mg/L 1 Benzo(a)pyrene Grab EPA 625 0.010 <0.010 mg/L 1 3,4 benzofluoranthene Grab EPA 625 0.010 <0.010 mg/L 1 Benzo(ghi)perylene Grab EPA 625 0.010 <0.010 mg/L 1 Benzo(k)fluoranthene Grab EPA 625 0.010 <0.010 mg/L 1 Bis (2-chloroethoxy) methane Grab EPA 625 0.010 <0.010 mg/L 1 Bis (2-chloroethyl) ether Grab EPA 625 0.010 <0.010 mg/L 1 Bis (2-chloroisopropyl) ether Grab EPA 625 0.010 <0.010 mg/L 1 Bis (2-ethylhexyl) phthalate Grab EPA 625 0.010 <0.010 mg/L 1 4-bromophenyl phenyl ether Grab EPA 625 0.010 <0.010 mg/L 1 Butyl benzyl phthalate Grab EPA 625 0.010 <0.010 mg/L 1 2-chloronaphthalene Grab EPA 625 0.010 <0.010 mg/L 1 4-chlorophenyl phenyl ether Grab EPA 625 0.010 <0.010 mg/L 1 Parameter Sample Type Analytical Method Quantitation Level Sample Result Measurer ent Number of samples Base -neutral compounds (cont.) Chrysene Grab EPA 625 0.010 <0.010 mg/L 1 Di-n-butyl phthalate Grab EPA 625 0.010 <0.010 mg/L 1 Di-n-octyl phthalate Grab EPA 625 0.010 <0.010 mg/L 1 Dibenzo(a,h)anthracene Grab EPA 625 0.010 <0.010 mg/L 1 1,2-dichlorobenzene Grab EPA 625 0.010 <0.010 mg/L 1 1,3-dichlorobenzene Grab EPA 625 0.010 <0.010 mg/L 1 Form - DMR- PPA-1 Page 2 Annual Monitoring and Pollutant Scan Permit No. NC0039594 Month A U-"U 5 Outfall 001 go i'7 1,4-dichlorobenzene Grab EPA 625 0.010 <0.010 mg/L 1 3,3-dichlorobenzidine Grab EPA 625 0.020 <0.020 mg/L 1 Diethyl phthalate Grab EPA 625 0.010 <0.010 mg/L 1 Dimethyl phthalate Grab EPA 625 0.010 <0.010 mg/L 1 2,4-dinitrotoluene Grab EPA 625 0.010 <0.010 mg/L 1 2,6-dinitrotoluene Grab EPA 625 0.010 <0.010 mg/L 1 1,2-diphenylhydrazine Grab EPA 625 0.050 <0.050 mg/L 1 Fluoranthene Grab EPA 625 0.010 <0.010 mg/L 1 Fluorene Grab EPA 625 0.010 <0.010 mg/L 1 Hexachlorobenzene Grab EPA 625 0.010 <0.010 mg/L 1 Hexachlorobutadiene Grab EPA 625 0.010 <0.010 mg/L 1 Hexachlorocyclo-pentadiene Grab EPA 625 0.010 <0.010 mg/L 1 Hexachloroethane Grab EPA 625 0.010 <0.010 mg/L 1 Indeno(1,2,3-cd)pyrene Grab EPA 625 0.010 <0.010 mg/L 1 Isophorone Grab EPA 625 0.010 <0.010 mg/L 1 Naphthalene Grab EPA 625 0.010 <0.010 mg/L 1 Nitrobenzene Grab EPA 625 0.010 <0.010 mg/L 1 N-nitrosodi-n-propylamine Grab EPA 625 0.010 <0.010 mg/L 1 N-nitrosodimethylamine Grab EPA 625 0.010 <0.010 mg/L 1 N-nitrosodiphenylamine Grab EPA 625 0.010 <0.010 mg/L 1 Phenanthrene Grab EPA 625 0.010 <0.010 mg/L 1 Pyrene Grab EPA 625 0.010 <0.010 mg/L 1 1,2,4,-trichlorobenzene Grab EPA 625 0.010 <0.010 mg/L 1 I certify under penalty of law that this document and all attachments were prepared under my direction and supervision in accordance with a system to design to assure that qualified perdonnel properly gather and evaluat the information submitted. Based on my inquiry of the person or persons that manage the system, or those persons directly responsibel for gathering the information, the information submitted is , to the best of my knowledge and belief, true, accurate and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fines and imprisonment for knowing violations. Timothy R. Hedrick Authorized lj-present •tive na gnature 9/7/2017 Date Form - DMR- PPA-1 Page 3 RESEARCH & ANAlyTicid. LAbORATORiESI INC. Analytical /PrOCe5S Consultations Chemical AnalysA- for Selected Parameters and Water Sample Identified as Maiden-PP-1 (A Water Tech Lahs, Inc. Project, collected 01 August 2017) 1. Volatile Organics EPA Ntetbod 624 Parameter Quantita thin Maiden-PPA 11. Semi-vola tile Organics Limit Method 625 1 mol. i imull.) Parameter Quantitation Maiden -PP, I.imit (ur.1/1,) Methylene Chloride 0010 BQI, 4.•Cilloro-3-tbethylphenol 0 010 BQL Trichloraluorometharte 0 01 0 BQI., 2.Chlorophenol 0010 BQL 1,1-Dich10methenc 0010 ISQL 2,4-Dichioronhenni 0 010 B1)1. 1.I.Dichloroethane 0 010 BQI. 2,4-Ditnethylphenol 0 010 13Q1. Chloroform 0 010 BQL 2,4-Dini1rophenol 0 050 LiQL Carbon Tetrachloride 0.010 130. 2-Methy1-4,6-Lbnit rophenol (1051) BQI. I ,2-Dichloropropitne (1 010 11f,?1., 2-Nitrophenol 0 01 0 liQl. Triehloroethene 0010 [IQ]. 4-Nitrophen0 0 050 13Q1. Dibromoehloromethane 0 010 BQL Pernachlorophenol 0 030 BQL 1,1.2-Trichloroetbane DO I 0 BQI. Phenol 0010 BQ1. Tetrachloroethene 0,010 BQI. 2,4,6.Trielliorophenol 0 010 BQI. Chlorobenzene 0.010 I3Q1.. Acenaphthene 0 010 BQL Trans-1.2-Dichloroethene 0.010 BQL, Acenaphthylene 0,010 BQL 1,2-D6:Moroi:thane 0 010 BQL, Anthracene 0,010 BQI, 1 ,1,1-Trichlormithane 0,010 [SQL Benzidine 0 050 [SQL. Bromodichloromethune 0.01.0 BQL Bertzo(a)aniliracene 0.010 BQ1. Cis-1,3-Dichloropropene 0.010 BQL Benzo000YEeno 0 010 BQI. Benzene 0.010 BQL BenzoIbilluoranthene 0 010 BQI. Trans-1,3-Dichloropropenc 0,010 BQL. BenzoIgh0perylene 0 010 BQL Bromoform 0.010 13Qt. Benzo(h)fluoranthene 0.010 [SQL 1.1.,2,2-Tetrachlorouthanc 0.010 BQL Bcnzyl butyl phthalate 0 010 BQL Toluene 0.010 BQL Bistl-ehloroethosyhnethane 0.010 BQL Ethyl Benzene 0.010 BQL Big 2-chloroethy riether 0.010 BQL Chloromethane 0110 E3Q1. Et ist 2-chloroisopropyl)ether 0010 BQI. Bromomethane„ 0.010 [SQL. His( 2-ethyl-hexy)'iphthalate 0010 BQI. Vinyl Chloride 0.010 BQI, 4-Bromophenyl phenyl tribe! 0,010 BQL Chloroethane 0,010 BQL 2-Chioronaphth8lene 0,010 BQI. Total Xylenes 0 010 BQI, 4-Chlorophenyl phenyl ether 0.010 BQL Acrolein 0 100 BQL Chrysene 0 OW BQL Aerylonitrile 0.100 BQL Dihenzoia,hianthracene 0.010 E3QI, 2-Chloroethyl vinyl &et 0,010 131)I. 12-Diehlorotsanzene 0010 BQL. 1.3-Dichlorobenzene 0.010 BQL Dilution Factor 1 1.4-Diehlorobenzene 0 010 BQL 3.3-Dichlorobenzidine 0.021) BQL Di-N-Buryl phthalate 0 010 BQL Sample Number 18184-01 2,4-Dinitrotoluene 0.010 BQL Sample Date 08,01,17 2,6-Dinitrotoluene 0.010 BQL Sample Time (hrs) 0335 Di-N-Octyl phthalate 0.010 BQI. Fluoranthenc 0,010 E3Q1., Henchlorobenzene 0.010 BQI. HeNachlorobutadiene 0.010 BQL Hexachlorocyclopentadiene 0 010 BQL Llexachloroelhane 0.010 BQL Indenott.2,3-cd) pyrene 0 010 12501. Isophorone 0.010 [SQL Naphthalene 0 010 BQL, Nitrobenzene 0 010 BEA N-Nitrosoditnethylarnine 0 010 LIQI. N-nitrosodi-n-propylamine 0 010 BQL N.Nitrosodiplierwlam100 0.010 [SQL. Phenanthrene 0010 13QE. Pyrene 0 010 SQL 1.2,4-Triehlorobenzene 0 010 BQL Diethyl phthalate 0010 BQL. Dimethyl phthalate 0010 BQI. Fluorene 0 010 BQL 1,2-diphenylhydrazi Re 0 050 BQL Dilution Fedor Sample Number Sample Date Sample Time Ors) BQL BOOW QuantMatimi Lung1 mgt. mitheramm per lalsm parts per million (ppm 38184-01 08.01 17 0035 IstATEROTCH LREI5 P.aE7.',.NOC,C PLAZA cT-j•:. (828) 396 4/114 SAMPLE: Maiden, Town of COLLECTION DATE: PERMIT #: COLLECTION TIME: ADDRESS: Town of Maiden RECEIVED DATE: 19 North Main Avenue RECEIVED TIME: Maiden, NC 28650 REPORTED: 8/1/2017 09:35 8/1/2017 15:30 9/1/2017 ANALYSIS ANALYSIS EFFLUENT UNITS DATE ANALYST BOD 9.6 mg/L 8/2/17 jdg TSS 12.4 mg/L 8/3/17 jrg NH3 <0.2 mg/L 8/3/17 jrg Fec,a1Coliform 7 /100mL 8/1/2017 jrg Oil & Grease <5.6 mg/L 8/18/17 jdg NO2+NO3 3.40 mg/L 8/25/17 jdg TKN 2.80 mg/L 8/24/17 jdg T. Nitrogen 6.20 mg/L 8/25/17 jdg T. Phosphorus 4.50 mg/L 8/24/17 jdg TDS 225 mg/L 8/3/17 lag Hardness 35 mg/L 8/3/17 lag Silver <0.005 mg/L 8/8/17 ANALYSIS INFLUENT UNITS DATE ANALYST BOD 257 mg/L 8/2/17 jdg TSS 207 mg/L 8/3/17 jrg LOG ID: 1708-024 REPORTED BY: NC CERTIFIED LAB # 50 Tony Gragg, Lab Supervisor -SCARCii & c,NA, DORATORiEp S NCQ For: Water Tech Labs, Inc. P.O. Box 1056 Granite Falls, NC 28630 Attn: Joe Gragg eport of Analysis 8/21/2017 0111111111fill •v- to. ANAL ie % ... , . ..... ' S'• NC 434 zi • NC 437701 •,,IlEc-rot/c3 .• ...... ,,'/R/EDAkANvios 444181s Client Sample ID: Maiden -Effluent PPA Scan Site: WaterTech Labs Lab Sample ID: 38184-01 Collection Date: 8/1/2017 9.35 Parameter Method Result Units Rep Limit Analyst Analysis Date/Time <0.005 mg/L 0.005 KL 8/8/2017 <0.005 mg/L 0.005 KL 8/8/2017 Antimony, Total Arsenic, Total Beryl' urn,Total Cadmium, Total Chromium, Total Copper, Total Cyanide Lead, Total Nickel, Total Phenols Selenium, Total Silver, Total Thallium, Total Zinc, Total EPA 200.7 EPA 200.7 EPA 200.7 <0.001 mg/L 0.001 KL 8/8/2017 EPA 200.7 <0.002 mg/L 0 002 KL 8/8/2017 EPA 200.7 0.017 rng/L 0.005 KL 8/8/2017 EPA 200.7 0.011 mg/L 0,005 KL 8/8/2017 SM 4500 CN E-1999 <0.005 mg/L 0.005 AW 8/8/2017 EPA 200.7 <0.005 mg/L 0.005 KL 8/8/2017 EPA 200.7 0.041 mg/L 0.005 KL 8/8/2017 EPA 420.1 <0.005 ing/L 0.005 DW 8/18/2017 EPA 200,7 <0.005 mg/L 0.005 KL 8/8/2017 EPA 200.7 <0.005 ing/L 0.005 KL 8/8/2017 EPA 200.7 <0.005 mg/L 0.005 KL 8/8/2017 EPA 200.7 0.149 rng/L 0 01 KL 8/8/2017 P O. Box 473 106 Short Street Kernersville, North Carolina 27284 Tel: 336-996-2841 Fax: 336-996-0326 NA or.cyze. mr.rnisrandalabs.com Page 1 Company : Address : Contact: Project: GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Water Tech Laboratories P.O. Box 1056 Granite Falls, North Carolina 28630 Mr. Tony Gregg Routine Analysis Report Date: August 28, 2017 Client Sample ID: Sample ID: Matrix: Collect Date: Receive Date: Collector: Maiden Effluent 430557001 Water 01-AUG-17 09:35 14-AUG-17 Client Project: WATR00101 Client ID: WATR001 Parameter Qualifier Result Mercury Analysis-CVAA EPA 1631 Low Level Mercury Analysis "As Received" Mercury 1.82 The following Analytical Methods were performed: DL RL Units PF DF Analyst Date Time Batch Method 0.200 0.500 ng/L 1 BCD1 08/19/17 1726 1693320 1 Method Description 1 EPA 1631E Notes: Column headers are defined as follows: DF: Dilution Factor DL: Detection Limit MDA: Minimum Detectable Activity MDC• Minimum Detectable Concentration Lc/LC: Critical Level PF: Prep Factor RL: Reporting Limit SQL: Sample Quantitation Limit Analyst Comments Page 3 of 10 Company : Address : Contact: Project: GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Water Tech Laboratories P.O. Box 1056 Granite Falls, North Carolina 28630 Mr. Tony Gregg Routine Analysis Report Date: August 28, 2017 Client Sample ID: Sample ID: Matrix: Collect Date: Receive Date: Collector: Blank (LL-Hg) 430557002 BLANK 01-AUG-17 12:00 14-AUG-17 Client Project: WATR00101 Client ID: WATR001 Parameter Qualifier Result Mercury Analysis-CVAA EPA 1631 Low Level Mercury Analysis "As Received" Mercury J 0.23 The following Analytical Methods were performed: DL 0.200 0.500 Units PF DF Analyst Date Time Batch Method ng/L 1 BCD1 08/19/17 1645 1693320 1 Method Description 1 EPA 1631E Notes: Column headers are defined as follows: DF: Dilution Factor DL: Detection Limit MDA: Minimum Detectable Activity MDC: Minimum Detectable Concentration Lc/LC: Critical Level PF: Prep Factor RL: Reporting Limit SQL: Sample Quantitation Limit Analyst Comments Page 4 of 10 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Water Tech Laboratories P.O. Box 1056 Granite Falls, North Carolina Contact: Mr. Tony Gregg Workorder: 430557 QC Summary Report Date: August 28, 2017 Page 1 of 2 Parmname NOM Sample Qual QC Units RPD% REC% Range Anlst Date Time Metals Analysis -Mercury Batch 1693320 QC1203857894 LCS Mercury 5.00 4.56 ng/L 91.3 (77%-123%) BCD1 08/19/17 16:32 QC1203857893 MB Mercury U <0.2 ng/L 08/19/17 16:25 QC1203857895 430954002 MS Mercury 10.0 3.83 12.9 ng/L 90.5 (71%-125%) 08/19/17 18:15 QC1203857897 430954002 MSD Mercury 10.0 3.83 12.8 ng/L 0.662 89.7 (0%-24%) 08/19/17 18:22 Notes: The Qualifiers in this report are defined as follows: < Result is less than value reported > Result is greater than value reported E %difference of sample and SD is >10%. Sample concentration must meet flagging criteria FB Mercury was found present at quantifiable concentrations in field blanks received with these samples. Data associated with the blank are deemed invalid for reporting to regulatory agencies H Analytical holding time was exceeded 7 Value is estimated N Metals --The Matrix spike sample recovery is not within specified control limits N/A RPD or %Recovery limits do not apply. Ni See case narrative ND Analyte concentration is not detected above the detection limit NJ Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Q One or more quality control criteria have not been met. Refer to the applicable narrative or DER. R Sample results are rejected U Analyte was analyzed for, but not detected above the MDL, MDA, MDC or LOD. X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Y Other specific qualifiers were required to properly define the results. Consult case narrative. ^ RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL. Qualifier Not Applicable for Radiochemistry. Page 5 of 10 Workorder: 430557 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Page 2 of 2 Parmnante NOM Sample Qual QC Units RPD% REC% Range Anlst Date Time h Preparation or preservation holding time was exceeded N/A indicates that spike recovery limits do not apply when sample concentration exceeds spike conc. by a factor of 4 or more or %RPD not applicable. ^ The Relative Percent Difference (RPD) obtained from the sample duplicate (DUP) is evaluated against the acceptance criteria when the sample is greater than five times (5X) the contract required detection limit (RL). In cases where either the sample or duplicate value is less than 5X the RL, a control limit of +/- the RL is used to evaluate the DUP result. * Indicates that a Quality Control parameter was not within specifications. For PS, PSD, and SDILT results, the values listed are the measured amounts, not final concentrations. Where the analytical method has been performed under NELAP certification, the analysis has met all of the requirements of the NELAC standard unless qualified on the QC Summary. Page 6 of 10 Metals Technical Case Narrative Water Tech Laboratories (WATR) SDG #: 430557 Product: Mercury Analysis Using the PS Analytical Millennium Automated Mercury Analyzer Analytical Method: EPA 1631E Analytical Procedure: GL-MA-E-018 REV# 18 Analytical Batch: 1693320 The following samples were analyzed using the above methods and analytical procedure(s). GEL Sample ID# Client Sample Identification 430557001 Maiden Effluent 430557002 Blank (LL-Hg) 1203857893 Method Blank (MB)CVAF 1203857894 Laboratory Control Sample (LCS) 1203857895 430954002(NonSDGS) Matrix Spike (MS) 1203857897 430954002(NonSDGSD) Matrix Spike Duplicate (MSD) The samples in this SDG were analyzed on an "as received" basis. Data Summary: There are no exceptions, anomalies or deviations from the specified methods. All sample data provided in this report met the acceptance criteria specified in the analytical methods and procedures for initial calibration, continuing calibration, instrument controls and process controls where applicable. Certification Statement Where the analytical method has been performed under NELAP certification, the analysis has met all of the requirements of the NELAC standard unless otherwise noted in the analytical case narrative. Page 7 of 10 Pag GEL Laboratories, LLC 2040 Savage Road Charleston, SC 29407 Phone: (843) 556-8171 Fax: (843)766-117/1 Sample Analysis Requested (5) (Fill in the number of containers for each test) 1 <-- Preservative Type (6) Comments Note: extra sample is required for sample specific QC A PRESE Deliverable ofA ' mmary / Level 1 / Level 2 / level 1 1 I evel 4 Sample Collection Time Zone Eastern Pacific C'nc tral Other --Mountain Vo!u ne: fry mp a tip t y Details GEL PM: Method of Shipment: (Date Shipped: ac :n 2 For Lab Receiving Use Only �O SE Q oler Temp: r tD . C I.) Chain of Custody Number = Client Determined 2.) QC Codes: N = Normal Sample, TB =Trip Blank, FD = Field Duplicate, Ell = Equipment Blank, MS = Matrix Spike Sample, MSD = Matrix Spike Duplicate Sample, G = Grab, C = Composite 3.) Field Filtered: For liquid matrices, indicate with a - Y - for yes the sample was field filtered or - N - for sample was not field filtered. 4.) Matrix Codes: DW=Drinking Water, GW=Groundwater, SW=Surface Water, WW=Waste Water, W=Water, SO=Soil. SD=Sediment, SL=S)udge, SS=Solid Waste, 0=0i1, F=Filter, P=Wipe, U=Urine, F=Feenl, N=Nasal 5.) Sample Analysis Requested: Analytical method requested (i.e. 8260B, 6010B/7470A) and number of containers provided for each (i.e. 826013 -1, 6010B/7470A - 1). 6.) Preservative Type: HA = Hydrochloric Acid, NI = Nitric Acid, SH = Sodium Hydroxide, SA = Sulfuric Acid, AA = Ascorbic Acid, HX = Hexane, ST = Sodium Thiosulfate, If no preservative is added = leave field blank Remarks: Are there any known hazards applicable to these samples? if so, please list the hazards Time Analyst: GEL Chain of Custody and Analytical Request GEL Work Order Number: (4�fl 1 Aa.1 MI s.iaaiejuoa Jo aagwnu Evo/ „__ Should this sample be considered: palr.Inba'a VDU-o 0 z C4 X [i 4nlla4,0!m Chain of Custody Signatures Re eived by (signed) Date Time f 0 �pc Client Name: W / i -e 4 Phone ii07 Project/Site Name: r (� (} I -j Fax #: V , • Collected by: Send Results To: N G — C G "Time Collected (Military) (hhmm) l TAT Requested: Normal: Rush: Specify: (Subject to Surcharge) a aco f ,co r1 4. N N Ski V Sample ID • For composites - indicate start and stop date/time -- 1.4 44 S V= Relinq fished Hy igned) Date Time 'Ohl 0 ra n age: of roject #: EL Quote #: OC Number (tt. PO Number: Laboratories _4G: SAMPLE RECEIPT & REVIEW F Client: vijArg SDG/AR/COC/Work Order: ii 1 S— 7 Received By: ,(7,,UL Ill Date Received: G {1 ( O Carrier and Tracking Number Circle Applicable: FedEx ExpressdEx ground UPS Field Services Courier Other ' •- i J Y(2S)I 0003 -4/ Suspected Hazard Information 4 >' o Z *If Net Counts > l00cpm on samples not marked "radioactive", contact the Radiation Safety Group for further investigation. Shipped as a DOT Hazardous? ' Hazard Class Shipped: UN#: COC/Samples marked or classified as radioactive? y Maximum Classified Net Counts Observed* (Observed Counts - Area Background Counts):1 CPM / mR/Hr as: Rad 1 Rad 2 Rad 3 Ls package, COC, and/or Samples marked HAZ? I If yes, select Hazards below, and contact the GEL Safety Group. PCB's Flammable Foreign Soil RCRA Asbestos Beryllium Other: Sample Receipt Criteria Z z Comments/Qualifiers (Required for Non -Conforming Items) 1 Shipping containers received intact and sealed? t� Circle Applicable: Seals broken Damaged container Leaking container Other (describe) 2 Chain of custody documents included with shipment? 3 Samples requiring cold preservation within (0 < 6 deg. C)?* Preservation Method: Wet Ice Ice Packs Dry ice on Other: C"s // / *all temperatures are recorded in Celsius TEMP: C 9 t._.- 4 Daily check performed and passed on IR temperature gun? .K Temperature Device Serial #' 41502132 Secondary Temperature Device Serial # (tf Applicable): 5 Sample containers intact and sealed? Circle Applicable: Seals broken Damaged container Leaking container Other (describe) 6 Samples requiring chemical preservation at proper pH? Sample ID's and Containers Affected: If Presorvation added. I,nt#: 7 Do any samples require Volatile Analysis? �g1 ( If Yes, Are Encores or Soil Kits present? Yes__ No (If yes, take to VOA Freezer) Do VOA vials contain acid preservation? Yes No N/A ._,,.,. (If unknown, select No) VOA vials free of headspace? Yes__,_ No N/A__ Sample ID's and containers affected: 8 Samples received within holding time? • ID's and tests affected: 9 Sample ID's on COC match ID's on bottles? Sample ID's and containers affected: 10 Date & time on COC match date & time on bottles? Sample ID's affected: 11 Number of containers received match number indicated on COC? 1 s,m ptc ID's affected: 12 Are sample containers identifiable as GEL provided? , 13 COC form is properly signed in relinquished/received sections? Comments (Use Continuation Form if needed): !-11 t PM (or PMA) review: Initials 4/ ki' Date .1 tilt t / Page Lof 1 GL-CHL-SR-001 Rev 5 Page 9 of 10 List of current GEL Certifications as of 28 August 2017 State Certification Alaska UST-0110 Arkansas 88-0651 CLIA 42D0904046 California 2940 Colorado SC00012 Connecticut PH-0169 Delaware SC00012 DoD ELAP/ ISO17025 A2LA 2567.01 Florida NELAP E87156 Foreign Soils Permit P330-15-00283, P330-15-00253 Georgia SC00012 Georgia SDWA 967 Hawaii SC00012 Idaho Chemistry SC00012 Idaho Radiochemistry SC00012 Illinois NELAP 200029 Indiana C—SC-01 Kansas NELAP E-10332 Kentucky SDWA 90129 Kentucky Wastewater 90129 Louisiana NELAP 03046 (AI33904) Louisiana SDWA LA170010 Maryland 270 Massachusetts M—SC012 Michigan 9976 Mississippi SC00012 Nebraska NE—OS-26-13 Nevada SC000122018-1 New Hampshire NELAP 205415 New Jersey NELAP S0002 New Mexico SC00012 New York NELAP 11501 North Carolina 233 North Carolina SDWA 45709 North Dakota R-158 Oklahoma 9904 Pennsylvania NELAP 68-00485 Puerto Rico SC00012 S.Carolina Radchem 10120002 South Carolina Chemistry 10120001 Tennessee TN 02934 Texas NELAP T104704235-17-12 Utah NELAP SC000122017-23 Vermont VT87156 Virginia NELAP 460202 Washington C780 West Virginia 997404 Page 10 of 10 Effluent Toxicity Report Form -Chronic Fathead Minnow Multi -Concentration Test Facility: Town of Maiden Date:4/24/2018 NPDES # NCOO 39594 Pipe #: 001 County: Catawba Control x Sign x Laboratory: Research& Analy�ti I LLaaboratori-s re . 7..r in Respans i5le Chargef iatuL .ratory Supervisor MAIL ORIGINAL 1t); Comments Final Effluent r- 7492fS:UT49d.0-111 Environmental Sciences Branch Division or Water Quality NC DENR 1621 Mail Service Center Raleigh, NC 27699-1621 Test Initiation Date/Time 4/11/2018 % Eff. Rept. Surviving # Original # Wt/original (mg) 5.501 Surviving # Original # Wt/originai (mg) 8.00l Surviving # Original # Wt/original (mg) 1 11.00.1 Surviving # Original # WUoriginal (mg) 16.50 Surviving # Original # Wt/original (mg) 22.00 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)InUFin 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 / 2:25PM 2 3 4 Avg WUSurv. Control 0.6708 15 15 15 15 15 15 15 15 0.6820 0.7393 0.6760 0.5860 15 15 15 15 15 15 15 15 0.6673 0.8407 0.7633 0.7133 15 15 15 15 15 15 15 15 0.7007 0.6793 0.7667 0.7253 15 15 15 15 15 15 15 15 0.7720 0.6967 0.6940 0.6200 15 15 15 15 15 15 15 15 0.7147 0.7793 0.6887 0.6693 15 15 15 15 15 15 15 15 0.7820 0.7187 0.6700 0.6947 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) 100.0 0.6708 100.0 0.7462 100.0 0.7180 100.0 0.6957 100.01 0.7130 100.0 0.7164 0 1 2 3 7.19 1 7.14 7.20 / 7.06 7.16 / 7.08 7.19 / 7.10 7.21 / 7.14 7.22 / 7.01 7.27 / 7.07 8.6 / 8.2 8.6 / 8.3 8.5 / 8.1 8.6 / 8.2 8.5 / 8.1 8.5 / 8.0 8.5 / 8.1 24.5 / 24.8 24.7 / 24.7 24.4 / 24.7 24.6 / 24.5 24.7 / 24.6 24.7 / 24.6 24.5 / 24.6 0 1 2 3 7.46 / 7.36 7.41 / 7.23 7.32 / 7.21 7.33 / 7.22 7.30 / 7.24 7.34 / 7.20 7.40 / 7.31 8.6 / 8.4 8.5 / 8.2 8.6 / 7.9 8.6 / 8.0 8.6 / 8.1 8.6 / 8.1 8.5 / 8.3 24.5 / 24.2 24.6 / 24.5 24.6 / 24.7 24.7 / 24.6 24.7 / 24.6 24.7 / 24.5 24.4 / 24.5 1 2 3 4/9/2018 4/12/2018 4/15/2018 24 24 24 46 42 47 38 34 31 348 378 318 0.03 0.02 0.05 2.9 3.4 1.5 47 38 190 Normal Hom. Var. NOEC LOEC ChV Survival ri, 22.00 >22% >22% Method Steels Stats Conc. 5.50 Growth Fl_ vi 22.00 >22% >22% Dunnetts Survival Critical Calculated 10 22 8.00 10 11.00 10 16.50 10 22.00 10 22 21 21 21 Test Organisms i9Cultured In -House 17 Outside Supplier Hatch Date: 4/9/2018 Hatch Time: >1600 Overall Result ChV >22% Growth Critical Calculated 2.41-1.8738 2.41 2.41 2.41 2.41 -1.1735 -0.6182 -1.0491 -1.1325 DWQ Form AT-5 (1/04) Annual Monitoring and Pollutant Scan Permit No. NC0039594 Outfall 001 Facility Name Town of Maiden Date of sampling ORC Timothy R. Hedrick Phone (828) 428-5032 Analytical Laboratories Research & Analytical Labs. GEL Labs. and Water Tech Labs. Month Year 20 Parameter Sample Type Analytical Method Quantitation Sample Result Units of Measurem ent Number of samples Level Dissolved oxygen Nitrate/Nitrite Total Kjeldahl nitrogen Total Phosphorus Total dissolved solids Hardness omposite Grab Composite Composite Composite Composite Composite SM4500NH3 SM4500-OG SM4500NO3 SM4500NH3 SM 4500P E SM 2540C EPA 200.7 0.2 0.1 0.1 0.14 0.16 1.0 1.0 0.31 5.6 6.6 3.08 3.82 246 38 Chlorine (total residual, TRC) Oil and grease Metals (total recoverable), cyanide Antimony Arsenic Grab Grab and total ph Composite Composite SM4500C1 G EPA 1664A enols EPA 200.7 EPA 200.7 20 5.6 0.025 0.005 22 <5.6 <0.005 <0.005 Beryllium Cadmium Composite Composite EPA 200.7 EPA 200.7 0.0010 0.002 <0.001 <0.002 Chromium Copper Lead Mercury Nickel Selenium Composite Composite Composite Composite Composite Composite EPA 200.7 EPA 200.7 EPA 200.7 EPA 245.1 EPA 200.7 EPA 200.7 0.005 0.005 0.005 0.200 (DL) 0.005 0.005 0.017 0.011 <0.005 0.041 <0.005 Silver Thallium Zinc Cyanide Total phenolic compounds Volatile organic compounds Acrolein Acrylonitrile Benzene Bromoform Carbon tetrachloride Chlorobenzene Composite Composite Composite Grab Grab Grab Grab Grab Grab Grab Grab EPA 200.7 EPA 200.7 EPA 200.7 SM4500CNE EPA 420.1 EPA 624 EPA 624 EPA 624 EPA 624 EPA 624 EPA 624 0.005 0.005 0.010 0.005 0.005 0.100 0.100 0.010 0.010 0.010 0.010 <0.005 <0.005 0.149 <0.005 <0.005 <0.100 <0.100 <0.010 <0.010 <0.010 <0.010 Chlorodibromomethane Grab EPA 624 0.010 <0.010 Chloroethane 2-chloroethylvinyl ether Chloroform Grab Grab Grab EPA 624 EPA 624 EPA 624 0.010 0.010 0.010 <0.010 <0.010 <0.010 Dichlorobromomethane 1,1-dichloroethane 1,2-dichloroethane Grab Grab Grab EPA 624 EPA 624 EPA 624 0.010 0.010 0.010 <0.010 <0.010 <0.010 Trans-1,2-dichloroethylene Parameter Volatile organic compounds (Cont.) 1,1-dichloroethylene Grab Sample Type Grab EPA 624 Analytical Method EPA 624 0.010 Quantitation Level 0.010 <0.010 Sample Result <0.010 m g/ L mg/ L mg/ L mg/ L mg/L mg/L mg/L ug/L 1 1 1 1 1 1 1 mg/ L mg/ L mg/L mg/ L mg/L mg/L mg/ L mg/ L ng/L mg/L mg/ L mg/ L mg/L mg/ L mg/L mg/ L mg/L mg/L mg/ L mg/L mg/ L mg/ L mg/L mg/L mg/L mg/ L mg/L mg/ L mg/ L mg/ L 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 1 1 1 1 1 Units of Measurem ent mg/ L 1 Number of samples 1 Form - DMR- PPA-1 Page 1 Permit No. NC0039594 Outfall 001 Annual Monitoring and Pollutant Scan Month 1,2-dichloropropane Grab EPA 624 0.010 <0.010 mg/L 1 1,3-dichloropropylene Grab EPA 624 0.010 <0.010 mg/L 1 Ethylbenzene Grab EPA 624 0.010 <0.010 mg/L 1 Methyl bromide Grab EPA 624 0.010 <0.010 mg/L 1 Methyl chloride Grab EPA 624 0.010 <0.010 mg/L 1 Methylene chloride Grab EPA 624 0.010 <0.010 mg/L 1 1,1,2,2-tetrachloroethane Grab EPA 624 0.010 <0.010 mg/L 1 Tetrachloroethylene Grab EPA 624 0.010 <0.010 mg/L 1 Toluene Grab EPA 624 0.010 <0.010 mg/L 1 1,1,1-trichloroethane Grab EPA 624 0.010 <0.010 mg/L 1 1,1,2-trichloroethane Grab EPA 624 0.010 <0.010 mg/L 1 Trichloroethylene Grab EPA 624 0.010 <0.010 mg/L 1 Vinyl chloride Grab EPA 624 0.010 <0.010 mg/L 1 Acid -extractable compounds mg/L P-chloro-m-creso Grab EPA 625 0.010 <0.010 mg/L 1 2-chlorophenol Grab EPA 625 0.010 <0.010 mg/L 1 2,4-dichlorophenol Grab EPA 625 0.010 <0.010 mg/L 1 2,4-dimethylphenol Grab EPA 625 0.010 <0.010 mg/L 1 4,6-dinitro-o-cresol Grab EPA 625 0.050 <0.050 mg/L 1 2,4-dinitrophenol Grab EPA 625 0.050 <0.050 mg/L 1 2-nitrophenol Grab EPA 625 0.010 <0.010 mg/L 1 4-nitrophenol Grab EPA 625 0.050 <0.050 mg/L 1 Pentachlorophenol Grab EPA 625 0.050 <0.050 mg/L 1 Phenol Grab EPA 625 0.010 <0.010 mg/L 1 2,4,6-trichlorophenol Grab EPA 625 0.010 <0.010 mg/L 1 Base -neutral compounds Acenaphthene Grab EPA 625 0.010 <0.010 mg/L 1 Acenaphthylene Grab EPA 625 0.010 <0.010 mg/L 1 Anthracene Grab EPA 625 0.010 <0.010 mg/L 1 Benzidine Grab EPA 625 0.050 <0.050 mg/L 1 Benzo(a)anthracene Grab EPA 625 0.010 <0.010 mg/L 1 Benzo(a)pyrene Grab EPA 625 0.010 <0.010 mg/L 1 3,4 benzofluoranthene Grab EPA 625 0.010 <0.010 mg/L 1 Benzo(ghi)perylene Grab EPA 625 0.010 <0.010 mg/L 1 Benzo(k)fluoranthene Grab EPA 625 0.010 <0.010 mg/L 1 Bis (2-chloroethoxy) methane Grab EPA 625 0.010 <0.010 mg/L 1 Bis (2-chloroethyl) ether Grab EPA 625 0.010 <0.010 mg/L 1 Bis (2-chloroisopropyl) ether Grab EPA 625 0.010 <0.010 mg/L 1 Bis (2-ethylhexyl) phthalate Grab EPA 625 0.010 <0.010 mg/L 1 4-bromophenyl phenyl ether Grab EPA 625 0.010 <0.010 mg/L 1 Butyl benzyl phthalate Grab EPA 625 0.010 <0.010 mg/L 1 2-chloronaphthalene Grab EPA 625 0.010 <0.010 mg/L 1 4-chlorophenyl phenyl ether Grab EPA 625 0.010 <0.010 mg/L 1 Parameter Sample Type Analytical Method Quantitation Level Sample Result Measurem ent Number of samples Base -neutral compounds (cont.), Chrysene Grab EPA 625 0.010 <0.010 mg/L 1 Di-n-butyl phthalate Grab EPA 625 0.010 <0.010 mg/L 1 Di-n-octyl phthalate Grab EPA 625 0.010 <0.010 mg/L 1 Dibenzo(a,h)anthracene Grab EPA 625 0.010 <0.010 mg/L 1 1,2-dichlorobenzene Grab EPA 625 0.010 <0.010 mg/L 1 1,3-dichlorobenzene Grab EPA 625 0.010 <0.010 mg/L 1 Form - DMR- PPA-1 Page 2 Permit No. NC0039594 Annual Monitoring and Pollutant Scan Outfall 001 Month e 1,4-dichlorobenzene Grab EPA 625 0.010 <0.010 mg/L 1 3,3-dichlorobenzidine Grab EPA 625 0.020 <0.020 mg/L 1 Diethyl phthalate Grab EPA 625 0.010 <0.010 mg/L 1 Dimethyl phthalate Grab EPA 625 0.010 <0.010 mg/L 1 2,4-dinitrotoluene Grab EPA 625 0.010 <0.010 mg/L 1 2,6-dinitrotoluene Grab EPA 625 0.010 <0.010 mg/L 1 1,2-diphenylhydrazine Grab EPA 625 0.050 <0.050 mg/L 1 Fluoranthene Grab EPA 625 0.010 <0.010 mg/L 1 Fluorene Grab EPA 625 0.010 <0.010 mg/L 1 Hexachlorobenzene Grab EPA 625 0.010 <0.010 mg/L 1 Hexachlorobutadiene Grab EPA 625 0.010 <0.010 mg/L 1 Hexachlorocyclo-pentadiene Grab EPA 625 0.010 <0.010 mg/L 1 Hexachloroethane Grab EPA 625 0.010 <0.010 mg/L 1 Indeno(1,2,3-cd)pyrene Grab EPA 625 0.010 <0.010 mg/L 1 Isophorone Grab EPA 625 0.010 <0.010 mg/L 1 Naphthalene Grab EPA 625 0.010 <0.010 mg/L 1 Nitrobenzene Grab EPA 625 0.010 <0.010 mg/L 1 N-nitrosodi-n-propylamine Grab EPA 625 0.010 <0.010 mg/L 1 N-nitrosodimethylamine Grab EPA 625 0.010 <0.010 mg/L 1 N-nitrosodiphenylamine Grab EPA 625 0.010 <0.010 mg/L 1 Phenanthrene Grab EPA 625 0.010 <0.010 mg/L 1 Pyrene Grab EPA 625 0.010 <0.010 mg/L 1 1,2,4,-trichlorobenzene Grab EPA 625 0.010 <0.010 mg/L 1 I certify under penalty of law that this document and all attachments were prepared under my direction and supervision in accordance with a system to design to assure that qualified perdonnel properly gather and evaluat the information submitted. Based on my inquiry of the person or persons that manage the system, or those persons directly responsibel for gathering the information, the information submitted is , to the best of my knowledge and belief, true, accurate and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fines and imprisonment for knowing violations. Timothy R. Hedrick Authorized Representative name Signature Date Form - DMR- PPA-1 Page 3 RESEARCI1 & ANALYTICAL LABORATORIES, INC. Analytical/Process Consultations Chemical Analysis for Selected Parameters and Water Sample Identified as Maiden-PPA (A Water Tech Labs, Inc. Project, collected 17 July 2018) I. Volatile Organics Quantitation Maiden-PPA 11. Semi -volatile Organics Quantitation Malden-PPA EPA Method 624 Limit Method 625 Limit Parameter m /L OWL) Parameter (m2/L) (me/L) Methylene Chloride 0.010 BQL 4-Chloro-3-methylphenol 0.010 BQL Trichlorofluoromethane 0.010 BQL 2-Chlorophenol 0.010 BQL 1,1-Dichloroethene 0.010 BQL 2,4-Dichlorophenol 0.010 BQL 1,1-Dichloroethane 0.010 BQL 2,4-Dimethylphenol 0.010 BQL Chloroform 0.010 BQL 2,4-Dinitrophenol 0.050 BQL Carbon Tetrachloride 0.010 BQL 2-Methyl-4,6-dinitmphenol 0.050 BQL 1,2-Dichloropropane 0.010 BQL 2-Nitrophenol 0.010 BQL Trichloroethene 0.010 BQL 4-Nitrophenol 0.050 BQL Dibromochloromethane 0.010 BQL Pentachlorophenol 0.050 BQL 1,1,2-Trichloroethane 0.010 SQL Phenol 0.010 BQL Tetrachloroethene 0.010 BQL 2,4,6-Trichlorophenol 0.010 BQL Chlorobenzene 0.010 BQL Acenaphthene 0.010 BQL Trans-1,2-Dichloroethene 0.010 BQL Acenaphthylene 0.010 SQL 1,2-Dichloroethene 0.010 BQL Anthracene 0.010 BQL I,I,1-Trichloroethane 0.010 BQL Benzidine 0.050 BQL Bromodichloromethane 0.010 BQL Benzo(a)anthracene 0.010 BQL Cis-1,3-Dichloropropene 0.010 SQL Benzo(a)pyrene 0.010 SQL Benzene 0.010 BQL Benzo(b)fluoranthene 0.010 BQL Trans-1,3-Dichloropropene 0.010 BQL Benzo(ghi)perylene 0.010 BQL Bromoform 0.010 SQL Benzo(k)fluoranthene 0.010 BQL 1,1,2,2-Telrachloroethane 0.010 BQL Benzyl butyl phthalate 0.010 BQL Toluene 0.010 BQL Bis(2-chloroethoxy)methane 0.010 BQL Ethyl Benzene 0.010 BQL Bis(2-chloroethyl)ether 0.010 BQL Chloromethane 0.010 SQL Bis(2-chloroisopropyl)ether 0.010 BQL Bromomethane 0.010 SQL Bis(2-ethyl-hexyl)phthalate 0.010 BQL Vinyl Chloride 0.010 BQL 4-Bromophenyl phenyl ethei 0.010 BQL Chloroethane 0.010 BQL 2-Chloronaphthalene 0.010 BQL Total Xylenes 0.010 BQL 4-Chlorophenyl phenyl ether 0.010 BQL Acrolein 0.100 BQL Chrysene 0.010 BQL Acrylonitrile 0.100 BQL Dibenzo(a,h)anthracene 0.010 BQL 2-Chloroethyl vinyl ether 0.010 BQL I,2-Dichlorobenzene 0.010 BQL I,3-Dichlorobenzene 0,010 BQL Dilution Factor 1 1,4-Dichlorobenzene 0.010 SQL 3,3-Dichlorobenzidine 0.020 BQL Di-N-Butyl phthalate 0.010 BQL Sample Number 53668-01 2,4-Dinitrotoluene 0.010 BQL Sample Date 07/17/18 2,6-Dinitrotoluene 0.010 BQL SampleTime(hrs) 0830 Di-N-Octyl phthalate 0.010 BQL Fluoranthene 0.010 BQL Hexachlorobenzene 0.010 BQL Hexachlorobutadiene 0.010 BQL Hexachlorocyclopentadiene 0.010 BQL Hexachloroethane 0.010 BQL Indeno(1,2,3-cd) pyrene 0.010 BQL Isophorone 0.010 BQL Naphthalene 0.010 BQL Nitrobenzene 0.010 SQL N-Nitrosodimethylamine 0.010 BQL N-nitrosodi-n-propylamine 0.010 BQL N-Nitrosodiphenylamine 0.010 BQL Phenanthrene 0.010 BQL Pyrene 0.010 BQL 1,2,4-Trichlorobenzene 0.010 BQL Diethyl phthalate 0.010 BQL Dimethyl phthalate 0.010 BQL Fluorene 0.010 BQL 1,2-diphenylhydrazine 0.050 BQL Dilution Factor 1 Sample Number 53668-01 Sample Date 07/17/18 Sample Time (hrs) 0830 BQL = Below Quantitation Limit! mg/L = milligrams per Liter = parts per million (ppm: 4 L4•. Or A '4MU ES INC. For: Water Tech Labs, Inc. P.G. Box 1056 Granite Falls, NC 28630 Attn: Joe Gragg Client Sample ID: Maiden PPA Slte: Water Tech Labs [Parameter Aritt:rnony, Total EPA 2001 CAI Arsenic, Total Berylliurn,.Tetal Cadmium, Total - Chromium, Total Cyanide Le8CI, Total Nickel, Total Phenols eh3niunt, Total Sliver, Total Thallium, Total Zinc;., Total Method EPA 20'0.7 EPA 2003 EPA 200.7 EPA 200.7 EPA 200,7 SM 4500 ON E-1999 EPA 200,7 EPA 200,7 EPA 420.1 EPA 200.7 EPA 200.7 EPA 200.7 EPA 200.7 Report of Analysis 8/2/2018 Lab Sample ID: 53008701 Collection Date: 7/17/2018 8:30 Result Units step Limit Analyst Analysis Date/Time <0,005 mg/L 0.005 LP 7/25i2018 0.005 mg/L 0,005 LP <0.001 mg/L 0.001 LP 0.002 mg/L 0,002 LP '0.005 mg/L 0.005 LP 0.013 mg/L. 0,:o05 LP <0.005 mg/L 0.005 AW <Q:405 mg/L 0,005 LP <0.005 mg/L 0.005 LP 0.052 mg/L 0.005 bW <0,005 mg/L 0,005 LP <0,005 nig/L 0.005 LP <0,005 mg/L 0.005 LP 0.127 mg/L 0.01 LP 7/25/2018 7/25/2018 7/25/2018 7126/2018 7125/2018 7/26/2018 7/25/2018 7/25/2018 7/26/2018 7/25/2018 7/25/20.18 7/25/2018 7/25/2018 NA = not analyzed P.p, Box-473 108 Short Street Ker��ersvUIa, North Carolina 27284 Tel: 336-996-2841 Fax: 336-996-0326 vi�nv.ranclaiabs.eom Page 1 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Company : Address : Contact: Project: Certificate of Analysis Water Tech Laboratories P.O. Box 1056 Granite Falls, North Carolina 28630 Mr. Tony Gragg lvsis Client Sample ID: AI�D,EN EFF Sample ID: 3001 Matrix: Collect Date: Receive Date: Collector: 17- 8 08:25 23-JUL-18 Client Report Date: August 6, 2018 Project: WATR00101 Client ID: WATR001 Parameter Qualifier Result DL RL Units PF DF Analyst Date Time Batch Method vlercury Analysis-CVAA :PA 1631 Low Level Mercury Analysis " 4ercury The following Analytical Methods were pe eceived" ormed: 0.200 0.500 ng/L 1 JXH5 07/31/18 1447 1787113 1 Vlethod Description EPA 1631E Dotes: Column headers are defined as follows: DF: Dilution Factor DL: Detection Limit MDA: Minimum Detectable Activity MDC: Minimum Detectable Concentration Lc/LC: Critical Level PF: Prep Factor RL: Reporting Limit SQL: Sample Quantitation Limit Analyst Comments age 3 of 11 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Company : Address : Contact: Project: Client Sample ID: Sample ID: Matrix: Collect Date: Receive Date: Collector: Certificate of Analysis Water Tech Laboratories P.O. Box 1056 Granite Falls, North Carolina 28630 Mr. Tony Gragg is 8 12:00 23-JUL-18 Client Report Date: August 6, 2018 Project: WATR00101 Client ID: WATR001 Parameter Qualifier Result vlercury Analysis-CVAA EPA 1631 Low Level Mercury Analysis "As Received" 4ercury J 0.39 The following Analytical Methods were performed: DL RL Units PF DF Analyst Date Time Batch Method 0.200 0.500 ng/L 1 JXH5 07/31/18 1441 1787113 1 Method Description EPA 1631E Dotes: Column headers are defined as follows: DF: Dilution Factor DL: Detection Limit MDA: Minimum Detectable Activity MDC: Minimum Detectable Concentration Lc/LC: Critical Level PF: Prep Factor RL: Reporting Limit SQL: Sample Quantitation Limit Analyst Comments age 4 of 11 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Water Tech Laboratories P.O. Box 1056 Granite Falls, North Carolina Contact: Mr. Tony Gragg Workorder: 455193 QC Summary Report Date: August 6, 2018 Page 1 of Parmname NOM Sample Qual QC Units RPD% REC% Range An1st Date Time VIetals Analysis -Mercury 3atch 1787113 QC1204080245 LCS Mercury 5.00 4.01 ng/L 80.2 (77%-123%) JXH5 07/31/18 14:2 QC1204080244 MB Mercury U <0.2 ng/L 07/31/18 14:2 QC1204080246 455193001 MS Mercury 10.0 2.24 11.2 ng/L 89.6 (71%-125%) 07/31/18 15:1 QC1204080247 455193001 MSD Mercury 10.0 2.24 10.6 ng/L 5.38 83.7 (0%-24%) 07/31/18 15:2 Notes: The Qualifiers in this report are defined as follows: < Result is less than value reported > Result is greater than value reported E %difference of sample and SD is >10%. Sample concentration must meet flagging criteria FB Mercury was found present at quantifiable concentrations in field blanks received with these samples. Data associated with the blank are deemed invalid for reporting to regulatory agencies H Analytical holding time was exceeded J Value is estimated N Metals --The Matrix spike sample recovery is not within specified control limits N/A RPD or %Recovery limits do not apply. NI See case narrative ND Analyte concentration is not detected above the detection limit NJ Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Q One or more quality control criteria have not been met. Refer to the applicable narrative or DER. R Sample results are rejected U Analyte was analyzed for, but not detected above the MDL, MDA, MDC or LOD. X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Y Other specific qualifiers were required to properly define the results. Consult case narrative. RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL. Qualifier Not Applicable for Radiochemistry. age 5of11 Workorder: 455193 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Page 2 of Parmname NOM Sample Qual QC Units RPD% REC% Range Anlst Date Time h Preparation or preservation holding time was exceeded N/A indicates that spike recovery limits do not apply when sample concentration exceeds spike conc. by a factor of 4 or more or %RPD not applicable. ^ The Relative Percent Difference (RPD) obtained from the sample duplicate (DUP) is evaluated against the acceptance criteria when the sample is greater than five times (5X) the contract required detection limit (RL). In cases where either the sample or duplicate value is less than 5X the RL, a control limit of +/_ the RL is used to evaluate the DUP result. * Indicates that a Quality Control parameter was not within specifications. For PS, PSD, and SDILT results, the values listed are the measured amounts, not final concentrations. Where the analytical method has been performed under NELAP certification, the analysis has met all of the requirements of the NELAC standard unless qualified on the QC Summary. a2e6of11 Metals Technical Case Narrative Water Tech Laboratories (WATR) SDG #: 455193 Product: Mercury Analysis Using the PS Analytical Millennium Automated Mercury Analyzer Analytical Method: EPA 1631E Analytical Procedure: GL-MA-E-018 REV# 18 Analytical Batch: 1787113 The following samples were analyzed using the above methods and analytical procedure(s). GEL Sample ID# Client Sample Identification 455193001 MAIDEN EFF 455193002 BLANK (LL-HG) 1204080244 Method Blank (MB)CVAF 1204080245 Laboratory Control Sample (LCS) 1204080246 455193001(MAIDEN EFFS) Matrix Spike (MS) 1204080247 455193001(MAIDEN EFFSD) Matrix Spike Duplicate (MSD) The samples in this SDG were analyzed on an "as received" basis. Data Summary: There are no exceptions, anomalies or deviations from the specified methods. All sample data provided in this report met the acceptance criteria specified in the analytical methods and procedures for initial calibration, continuing calibration, instrument controls and process controls where applicable. Certification Statement Where the analytical method has been performed under NELAP certification, the analysis has met all of the requirements of the NELAC standard unless otherwise noted in the analytical case narrative. aae7of11 / \ a 1.) Chain of Cu e. crz \ as field filtered or - N - for san 14. e. SW==Surface 82608, 6010B/7470A) and numbe crp \� f \ 0, ! ,!, 42§ t! smart solutions® Quality System Audited & Registered by NSF-ISR to ISO 9001:2008 Certificate of Analysis Catalog No: Description: Container Lot No.: Lot No: Glove Lot No: Date Received: 190007-03-CL-250 Rev 0 8 az Field/Equipment Blank for Method 1631 (Clear) (Contains one bottle filled with mercury -free water and one empty, double bagged with gloves and certificate of analysis) 1110189 1110259 1350109560951 This certificate verifies that this Lot was cleaned to the recommended EPA wash procedure as set forth in EPA's "Specifications and Guidance for obtaining Contaminant - Free Sample Containers" and EPA Method 1631E. This Lot was tested and found to comply with or be lower than the EPA specification. Certified By: Hg <0.5 ng/L a" P Annette Goodwin Inorganics This container was analyzed by Atomic Fluorescence Spectrometry in accordance with EPA Method 1631 E. age 9 of 11 2030 Savage Road • Charleston, SC 29407 Phone: 866.272.0932 • Fax: 866.509.5146 www.o2si.com Laboratories Lie SAM Client: "`&,i lr P h la SDG/AR/COC/WorkOrder: 1 ` v`u•1 Received By: J4 /. Date Received: 6- Z.3- ^ 1' Carrier and Tracking Number Circle Applicable: FedEx Expres" FedEx Ground UPS Field Services Courier Other Tracking # 802c7 75 fp9 Suspected Hazard Information 4 ›, o z *If Net Counts > 100cpm on samples not marked "radioactive", contact the Radiation Safety Group for further investigation. Shipped as a DOT Hazardous? ✓ Hazard Class Shipped: UN#: COC/Samples marked or classified as radioactive? ✓ Maximum Net Counts Observed* (Observed Counts - Area Background Counts): 19 CPM / mR/Hr Classified as: Rad 1 Rad 2 Rad 3 Is package, COC, and/or Samples marked HAZ? ✓ If yes, select Hazards below, and contact the GEL Safety Group. PCB's Flammable Foreign Soil RCRA Asbestos Beryllium Other: Sample Receipt Criteria z z 1 Shipping containers received intact and sealed? ✓ Comments/Qualifiers (Required for Non -Conforming Items) Circle Applicable: Seals broken Damaged container Leaking container Other (describe) 2 3 4 5 6 7 8 9 Chain of custody documents included with shipment? Samples requiring cold preservation within (0 < 6 deg. C)?* Daily check performed and passed on ER temperature gun? Sample containers intact and sealed? Samples requiring chemical preservation at proper pH? Do any samples require Volatile Analysis? Samples received within holding time? Sample ID's on COC match ID's on bottles? v. Preservation Method: Wet Ice Ice Packs Dry ice *all temperatures are recorded in Celsius Temperature Device Serial #: LLHG001 Secondary Temperature Device Serial # (tf Applicable): Other: TEMP: 2 / t2 ✓ 10 Date & time on COC match date & time on bottles? ✓ 11 12 13 Number of containers received match number indicated on COC? Are sample containers identifiable as GEL provided? COC form is properly signed in relinquished/received sections? Comments (Use Continuation Form if needed): ✓ Circle Applicable: Seals broken Damaged container Leaking container Other (describe) sample ID's and Containers Affected: jf Preservation added, Loth: If Yes, Are Encores or Soil Kits present? Yes No . (If yes, take to VOA Freezer) Do VOA vials contain acid preservation? Yes No N/A(If unknown, select No) VOA vials free of headspace? YesNo_ N/A Sample ID's and containers affected: ID's and tests affected: Sample ID's and containers affected: Sample ID's affected: Sample ID's affected: PM (or PMA) review: Initials Date i! Qc{ \ Page ( of 1 age 10 of 11 GL-CHL-SR-001 Rev 5 List of current GEL Certifications as of 06 August 2018 State Certification Alaska 17-018 Arkansas 88-0651 CLIA 42D0904046 California 2940 Colorado SC00012 Connecticut PH-0169 Delaware SC00012 DoD ELAP/ ISO17025 A2LA 2567.01 Florida NELAP E87156 Foreign Soils Permit P330-15-00283, P330-15-00253 Georgia SC00012 Georgia SDWA 967 Hawaii SC00012 Idaho Chemistry SC00012 Idaho Radiochemistry SC00012 Illinois NELAP 200029 Indiana C—SC-01 Kansas NELAP E-10332 Kentucky SDWA 90129 Kentucky Wastewater 90129 Louisiana NELAP 03046 (AI33904) Louisiana SDWA LA180011 Maryland 270 Massachusetts M—SC012 Michigan 9976 Mississippi SC00012 Nebraska NE—OS-26-13 Nevada SC000122018-1 New Hampshire NELAP 205415 New Jersey NELAP SC002 New Mexico SC00012 New York NELAP 11501 North Carolina 233 North Carolina SDWA 45709 North Dakota R-158 Oklahoma 9904 Pennsylvania NELAP 68-00485 Puerto Rico SC00012 S. Carolina Radiochem 10120002 South Carolina Chemistry 10120001 Tennessee TN 02934 Texas NELAP T104704235-18-13 Utah NELAP SC000122018-26 Vermont VT87156 Virginia NELAP 460202 Washington C780 West Virginia 997404 age 11 of 11 Effluent Toxicity Report Form -Chronic Fathead Minnow Multi -Concentration Test Date:1/25/2019 Facility: Town of Maiden NPDES # NCO° 39594 Pipe #: 001 County: Catawba )Control x Laboratory: Research & Analytical Laboratories arge MAIL ORIGINAL 10: Environmental Sciences Branch Division or Water Quality NC DENR 1621 Mail Service Center Raleigh, NC 27699-1621 Comments Final Effluent RAL # 61702-01, 61845-01, 61869.01 Test Initiation DateTme 1/16/2019 % Eff. Rep!. Surviving # Original # Wt/original (rng) 5.50 Surviving # Original # VA/original (mg) 8.00 Surviving # Original # Wt/original (mg) 11.00 Surviving # Original # Wt/orginal (mg) 16.50 Surviving # Original # Wt/original (mg) 22.00 Surviving # Original # Wt/original (mg) Water Quality Data Control pH (SU) init/Fin DO (mg/L) Init/Fin Temp (C) lnit/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(mg1L) Temp. at Receipt (°C) Dilution H2O Hardness (mg/L) Alkalinity (mg/L) Conductivity (umhos/cm) 1 2:02 PM 2 3 4 Avg Wt/Surv. Control) 0.45851 Test Organisms 15 15 15 15 15 15 15 15 0.5607 0.3973 0.4620 0.4140 15 15 15 15 15 15 15 15 0.4393 0.5127 0.5207 0.5420 15 15 15 15 15 15 15 15 0.4947 0.5747 0.5073 0.4920 15 15 15 15 15 15 15 15 0.4707 0.5120 0.5387 0.5427 15 15 15 15 15 15 15 15 0.5673 0.5300 0.4753 0.5287 15 15 15 15 15 15 15 15 0.5547 0.5507 0.5000 0.5113 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) 100.0 0.4585 100.0 0.50371 100.0 0.5172 100.0 0.5160 100.0 0.5253 100.0 0.5292 0 1 2 3 4 5 6 7.04 / 7.00 7.08 / 7.03 7.07 1 7.00 7.10 1 7.02 7.15 / 7.00 7.09 / 7.00 7.11 / 7.03 8.6 / 8.4 8.6 / 8.4 8.5 1 8.2 8.6 / 8.3 8.5 / 8.1 8.5 / 8.2 8.5 / 8.2 24.5 / 24.4 24.2 / 24.5 24.4 / 24.5 24.5 / 24.5 24.3 / 24.5 24.4 / 24.4 24.5 / 24.4 0 2 4 5 8 7.07 / 7.10 7.11 / 7.04 7.10 / 7.02 7.11 / 6.99 7.10 / 7.00 7.11 / 6.98 7.13 / 7.00 8.6 / 8.3 8.5 / 8.1 8.6 / 8.2 8.6 / 8.3 8.5 / 8.1 8.5 1 8.2 8.6 / 8.1 24.5 / 24.5 24.4 / 24.5 24.3 / 24.4 24.4 / 24.3 24.3 / 24.5 24.4 / 24.3 24.5 / 24.4 2 3 1/14/2019 1 / 17/2019 1/20/2019 24 24 24 47 48 47 33 32 31 213 238 236 0.03 0.02 0.03 3.0 2.0 2.0 48 38 192 Survival Growth Normal irl4 Hom. Var. ria NOEC 22.00 22.00 LOEC >22 >22 ChV >22 >22 Method Steels Dunnetts ri r Cultured In -House f Outside Supplier Hatch Date: 1/14/2019 Hatch Time: >1800 Overall Result ChV >22 Stats Survival Growth Conc. Critical Calculated Critical Calculated 5.50 10 21 2.41 -1.4170 8.00 10 23 2.41 -1.8404 11.00 10 22 2.41-1.8043 16.50 10 23 2.41-2.0960 22.00 10 22 2.41-2.2188 DWQ Form AT-5 (1/04) RESEARCII & ANALyTicA[ LABORATORIES, INC. Analytical/proCeS9 ConStiitatPOnS Chemical Analysts for Selected Parameters and Water Sample Ident jfled as Town ofMak!en (A Water Tech Labs, Inc Project, collected 11 February 2019) r, Volatile Organics Quantitalion EPA. Method 624 Limit Parameter tmg/L) (me/L) Town otMalden I[. Semi -volatile Organics Method 625 Parameter Quantitation Town of Maiden Limit (me/L) Melitylene Chloride 0.010 SQL 4-Chloro-3-methylphcnol 0,010 'l'richiorufluoromethane 0,010 SQL 2-Chioraphcna1 0.010 l,1-Diehtoreetheno 0.010 SQL 2,4-Diehlorophenol 0,010 1,1-Dichluroetltane 0.010 SQL 2,4-Dimethylphenol 0.010 Chloroform 0.010 0.010 2,4-Dinitrophenel 0.050 CarbonTulruchloridc 0.010 SQL 2-Methyl-4,6•dinitrophenol 0.050 1;2-Dichleraprepane 0.010 SQL 2-Nitraphenol 0.010 Triehloroethene 0,010 SQL 4-Nitrophenol 0.050 Dibromocltlaremethane 0.010 SQL Pentachtamphenol 0.050 1,1,2-Triebluroethane 0,010 SQL Phenol 0.010 '1'etrachloroethene 0,010 SQL 2,4,6-Trichlorophonol 0.010 Clttorahunzenc 0.010 SQL Acenaphthene 0.010 Trans-1,2,Dichloroeihcne 0.010 SQL Acenaphthylcne 0.010 1,2-Diehloroethune 0,010 SQL Anthracene 0.010 1,1,1-Trlchloraethane 0.010 SQL Benzidirie 0.050 Bromadichioramcthane 0,010 SQL Ben o(e)anlhruccne 0.010 Cis-1,3-I)ichloropropcne 0,010 SQL Benzp(a)pyrene 0.010 Benzene 0,010 SQL Benzo(b)fluoranthenc 0.010 Truns-43-Dfchlorepropene 0,010 SQL i3enzo(ghi)perylcne 0.010 Bromolbrm 0,010 SQL Benzo(k)iluoranthene 0,010 I,:I 2,2-'fetrachleruethane 0.010 SQL Benzyl butyl phthalate 0,010 Toluene 0.010 SQL Sis(2-chlaroethoxy)tnetltane 0.010 Ethyl Benzene 0.010 SQL Sis(2-chloroetityl)ether 0.010 Chloromethane 0,010 SQL Sis(2-cbtoroisopropyl)ether 0.010 Bromonlethane 0.010 SQL Sis(2-ethyl-hexyl)phthalate 0.010 Vinyl Chloride 0,010 SQL 4-Bromophenyl phenyl ether 0.010 Chlorocthane 0.010 SQL 2-Chloronaphthatene 0.010 Total Xylcues 0.010 SQL 4-Chlorophenyi phenyl ether 0,010 Acrotein 0,100 SQL Chrysene 0.010 Aerylonitrilo 0,100 SQL Dibenzo(a,h)unthracenc 0.010 2-Chloreethyl vinyl ether 0.010 SQL 1,2-Diohlorobenzene 0.010 Dilution Factor 1,3-Dichlorobenzene 0.010 I 1,4-Drloltlorobenzenc 0.010 3,3-Dichlorobenzidine 0.020 Di-N-Butyl phthalate 0,010 Sample Number 63053-01 2,4-Dinitrotoluenu 0.010 Sample Date 02/11/19 2,6.Dinitrotoluene 0.010 Sample Time Mrs) -- Di-N-Oetyl phthalate 0.010 Fluoranthenc 0.010 hiexachtorobenzene 0.010 i{exachtorobuladiene 0.010 1lexaehlorooyclopenladiene 0.010 l•lexaehlareethane 0.010 lndeno(1,2,3•cd)pyreno 0.010 Isoplwroae 0.010 Naphthalene 0.010 Nitrobenzene 0.010 N-Nlirosodimethylamine 0.010 N-nitrosodi-n-propylarnine 0,010 N-Nitrosadiphenylatnine 0.010 Phenanthrene 0.010 Pyrene 0.0)0 1,2,4-Triehlorobenzene 0.010 Diethyl phthalate 0.010 Dimeibyl phthalate 0.010 Fluarene 0.010 I,2-diphenylhydrazine 0.050 SQL a Below Quantitation Limits Dilution Factor tine/L) SQL SQL SL SQL SQL SQt. SQL SQL SQL SQL SQL SQL SQL SQL SQL SQL SQL SQL SQL SQL SQL SQL SQL SQL SQL SQL SQL SQL SL SQL SQL SQL SQL SQL SQL SQL SQL SQL SQL SQL SQL SQL SQL SQL SQL SQL SQL SQL SQL SQL SQL SQL SQL SQL SQL SQL SQL Sample Number 63053-01 Sample Date 02/11/19 Sample Time (hrs) milligrams per Liter parts per million (ppm) Esc Anch , ANAEyTiCAE 0 LA ORAToRkks, INC. For: Water Tech Labs, Inc. P.0, Box 1056 Granite Falls, NO 28660 Attn: Jon Gragg Client Sample ID: Town of Maiden Site: Water Tech Labs Parameter Method AeItrnony, Total EPA 200.7 Arsenic, Total Beryllium, Total Cadmium, Total 'Chromium, Total Copper, Total Cyanide Lead; `total Nickel, Total Phenols Selenium, Total Silver, Total 'ihalliurn, Total Zinc, Total EPA 200.7 EPA 200.7 EPA 200.7 EPA 200,7 EPA 200.7 SM 4500 CN E-1999 EPA 200.7 EPA 200,7 EPA 420.1 EPA 200.7 EPA 200.7 EPA 200,7 EPA 200.7 Report of Analysis 2/25/2019 ostit lrrrr w;4" ,, c%'r` 0Y.j�`'r ,171 ova NC#34 z�:� Nc 1t377o1 ` .f �vro �r1960 Ag 5�40 +.4lyixt{l0> Lab Sample ID: 63053-01 Collection. Date: 2/11/2019 Result [hits Rep Limit noJ st Analysis bate/Time J <0.005 mg/L 0.005..�._ JF _ 221)2dls <0,005 mg/L <0.001 rng/L <0.002 mg/L <0.005 mg/L 0.023 mg/L <0.005 mg/L <0.005 mg/L <0.005 mg/L <0.005 mg/L <0,005 <0.005 mg/L <0,005 mg/L 0.295 mg/L mg/L 0,005 Jr 2/21/2019 0.001 J.F 2/21/2019 0.002 JF .2/21/201.9 0.005 JF 2/21/2.019 0,005 JF 2/21/2019 0.005 EE 2/20/2019 0.005 JF 2/21/2019 0.005 JF 2/21/2019 0,005 DW 2/21/2019 0.005 JF 2/21/2019" 0.005 JF 2/21/2019 0.005 JF 2/21/2019 0.01 JF 2/21/2019 P.O. Box 473 106 Short gireel Kernorsville, North Carolina 27284 Tel: 33C-996-2t341 Fax: 336996-0326 NA = not analyzed dvww.randalabs.corn Page). GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Company : Address : Contact: Project: Client Sample ID: Sample ID: Matrix: Collect Date: Receive Date: Collector: Certificate of Analysis Report Date: March 4, 2019 Water Tech Laboratories P.O. Box 1056 Granite Falls, North Carolina 28630 Mr. Tony Gragg Routine Analysis Maiden EFF 471548001 Water 11-FEB-19 10:21 18-FEB-19 Client Project: WATR00101 Client 1D: WATR001 Parameter Qualifier Result DL RL Units PF DF Analyst Date Time Batch Method Mercury Analysis-CVAA EPA 1631 Low Level Mercury Analysis "As Received" dercury 3.34 0.200 0.500 ng/L 1 BCD1 02/21/19 0621 1850438 The following Analytical Methods were performed: Method votes: Description EPA 1631E Column headers are defined as follows: DF: Dilution Factor DL: Detection Limit MDA: Minimum Detectable Activity MDC: Minimum Detectable Concentration Lc/LC: Critical Level PF: Prep Factor RL: Reporting Limit SQL: Sample Quantitation Limit Analyst Comments age 3 of 11 SDG: 471548 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Water Tech Laboratories P.O. Box 1056 Granite Falls, North Carolina Contact: Mr. Tony Gragg Workorder: 471548 QC Summary Report Date: March 4, 2019 Page 1 of Parmname NOM Sample Qual QC Units RPD% REC% Range Anlst Date Time Metals Analysis -Mercury 3atch 1850438 QC1204222022 LCS Mercury 5.00 4.76 ng/L 95.1 (77%-123%) BCD1 02/21/19 06:0 QC1204222021 MB Mercury U <0.2 ng/L 02/21/19 06:0 QC1204222023 471548001 MS Mercury 10.0 3.34 12.4 ng/L 90.2 (71%-125%) 02/21/19 06:3 QC1204222024 471548001 MSD Mercury 10.0 3.34 12.5 ng/L 0.958 91.4 (0%-24%) 02/21/19 06:3 Notes: The Qualifiers in this report are defined as follows: < Result is less than value reported > Result is greater than value reported E %difference of sample and SD is >10%. Sample concentration must meet flagging criteria FB Mercury was found present at quantifiable concentrations in field blanks received with these samples. Data associated with the blank are deemed invalid for reporting to regulatory agencies H Analytical holding time was exceeded J Value is estimated N Metals --The Matrix spike sample recovery is not within specified control limits N/A RPD or %Recovery limits do not apply. NI See case narrative ND Analyte concentration is not detected above the detection limit NJ Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Q One or more quality control criteria have not been met. Refer to the applicable narrative or DER. R Sample results are rejected U Analyte was analyzed for, but not detected above the MDL, MDA, MDC or LOD. X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Y Other specific qualifiers were required to properly define the results. Consult case narrative. RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL. Qualifier Not Applicable for Radiochemistry. age 4 of 11 SDG: 471548 Workorder: 471548 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Page 2 of Parmname NOM Sample Qual QC Units RPD% REC% Range Anlst Date Time h Preparation or preservation holding time was exceeded N/A indicates that spike recovery limits do not apply when sample concentration exceeds spike conc. by a factor of 4 or more or %RPD not applicable. ^ The Relative Percent Difference (RPD) obtained from the sample duplicate (DUP) is evaluated against the acceptance criteria when the sample is greater than five times (5X) the contract required detection limit (RL). In cases where either the sample or duplicate value is less than 5X the RL, a control limit of +/- the RL is used to evaluate the DUP result. * Indicates that a Quality Control parameter was not within specifications. For PS, PSD, and SDILT results, the values listed are the measured amounts, not final concentrations. Where the analytical method has been performed under NELAP certification, the analysis has met all of the requirements of the NELAC standard unless qualified on the QC Summary. age 5 of 11 SDG: 471548 Metals Technical Case Narrative Water Tech Laboratories (WATR) SDG #: 471548 Product: Mercury Analysis Using the PS Analytical Millennium Automated Mercury Analyzer Analytical Method: EPA 1631E Analytical Procedure: GL-MA-E-018 REV# 18 Analytical Batch: 1850438 The following samples were analyzed using the above methods and analytical procedure(s). GEL Sample ID# Client Sample Identification 471548001 Maiden EFF 1204222021 Method Blank (MB)CVAF 1204222022 Laboratory Control Sample (LCS) 1204222023 471548001(Maiden EFFS) Matrix Spike (MS) 1204222024 471548001(Maiden EFFSD) Matrix Spike Duplicate (MSD) The samples in this SDG were analyzed on an "as received" basis. Data Summary: There are no exceptions, anomalies or deviations from the specified methods. All sample data provided in this report met the acceptance criteria specified in the analytical methods and procedures for initial calibration, continuing calibration, instrument controls and process controls where applicable. Certification Statement Where the analytical method has been performed under NELAP certification, the analysis has met all of the requirements of the NELAC standard unless otherwise noted in the analytical case narrative. age 6 of 11 SDG: 471548 Labor, Client: A Pk. T 2. SDG/AR/COC/WorkOrder: ? i5 5j Received By: AN.)(-5 Date Received --, 2' --I 1 j4,,r Carrier and Tracking Number r" Applicable: cle FedEx Express FedEx Ground UPS Field Services Courier Other tLi - Th- (lot(loto lqt S G ,3 t 1 ode 3 532.. Suspected Hazard Information Z *If Net Counts > 100cpm on samples not marked "radioactive", contact the Radiation Safety Group for further investigation. as a DOT Hazardous? J/ Flazard Class Shipped: UM: If UN2910, Is the Radioactive Shipment Survey Compliant? Yes— No� B) Did the client designate the samples are to be received as radioactive? /COC no orradioacttve stickers on containers equal client designation.. `. Did the RSO classify the samples as radioactive? . ClC) aximum assified Net (Observed3 Counts - Area Background Counts): CPM / mR/llr Observed*Rad2 as: Rad its Rad D) Did the client designate samples are hazardous? CtJC notation or hazard labals oe containers equal client clesigiation. E) Did the RSO identify possible hazards? D or E is yes, select Hazards below. PCB's Flammable Foreign Soil RCRA Asbestos Beryllium Other: Sample Receipt Criteria 7 z 7 Comments/Qualifiers (Required for Non -Conforming Items) 1 Shipping containers received intact and sealed? Circle Applicable: Seals broken Damaged container Leaking container Other (describe) 2 Chain of custody documents included with shipment? Circle Applicable: Client contacted and provided COC COC created upon receipt 3 Samples requiring cold preservation Preservation Method: Wet Ice Ice Packs Dry i NoneOther. *all temperatures are recorded in Celsius TEMP: t 4 Daily check performed and passed on IR temperature gun? Temperature Device Serial #: CJ Secondary YTcmPerature Device Serial # (If plicable}:to 5 Sample containers intact and sealed? f/ �itele Applicable: Seals broke. Dama:ed container Leaking container Other (describe) rr?7'�lOj 6 Samples requiring chemical preservation at proper pH? Sample ID's and Containers Affected: If Preservation added, Lot#: 7 Do any samples require Volatile Analysis? If Yes, are Encores or Soil Kits present for solids? Yes No NA(If yes, take to VOA Freezer) Do liquid VOA vials contain acid preservation? Yes Nounknown, NA (If known, select No) Are liquid VOA vials free ofhesdspace? Yes No NA Sample ID's and containers affected: 8 Samples received within holding time? ID's and tests affected: 9 Sample ID's on COC match ID's on bottles? ID's and containers affected: 10 Date & time on COC match date & time on bottles? Circle Applicable: No dates on containers No times on containers COC missing info Other (describe) 11 Number of containers received match number indicated on COC? Circle Applicable: No container count on COC Other (describe) 12 Are sample containers identifiable as GEL provided? 13 COC form is properly signed in relinquished/received sections? Circle Applicable: Not relinquished Other (describe) Comments (Use Continuation Fomi if needed): PM (orPMA) review: Initials iC- Date aim f'i Page of age 8 of 11 SDG: 471548 GL-CHL-SR-001 Rev 6 Subject: Samples received at GEL this morning 2/18 From: Taylor Cannon <taylor.cannon@gel.com> Date: 2/18/2019 11:13 AM To: joegragg@watertechlabs.com CC: "team.taylor@gel .com" <team.taylor@gel .com> Good morning, The Field Blank for the Town of Maiden Low Level Mercury samples we received this morning was received broken. We will continue will analysis on the remaining sample (Maiden EFF). Thanks, Taylor Taylor Cannon Project Manager Assistant GEI L 2040 Savage Road, Charleston, SC 29407 I PO Box 30712, Charleston, SC 29417 Office Direct: 843.556.8171 ext. 4708 I Office Main: 843.556.8171 I Fax: 843.766.1178 E-Mail: taylor.cannon@gel.com I Website: www.gel.com Analytical Testing CONFIDENTIALITY NOTICE: This e-mail and any files transmitted with it are the property of The GEL Group, Inc. and its affiliates. All rights, including without limitation copyright, are reserved. The proprietary information contained in this e-mail message, and any files transmitted with it, is intended for the use of the recipient(s) named above. If the reader of this e-mail is not the intended recipient, you are hereby notified that you have received this e-mail in error and that any review, distribution or copying of this e-mail or any age 9 of 11 SDG: 471548 files transmitted with it is strictly prohibited. If you have received this e-mail in error, please notify the sender immediately and delete the original message and any files transmitted. The unauthorized use of this e-mail or any files transmitted with it is prohibited and disclaimed by The GEL Group, Inc. and its affiliates. http://www.gellaboratories.com CONFIDENTIALITY NOTICE: This e-mail and any files transmitted with it are the property of The GEL Group, Inc. and its affiliates. All rights, including without limitation copyright, are reserved. The proprietary information contained in this e-mail message, and any files transmitted with it, is intended for the use of the recipient(s) named above. If the reader of this e-mail is not the intended recipient, you are hereby notified that you have received this e-mail in error and that any review, distribution or copying of this e-mail or any files transmitted with it is strictly prohibited. If you have received this e-mail in error, please notify the sender immediately and delete the original message and any files transmitted. The unauthorized use of this e-mail or any files transmitted with it is prohibited and disclaimed by The GEL Group, Inc. and its affiliates. http://www.gellaboratories.com age 10 of 11 SDG: 471548 • List of current GEL Certifications as of 04 March 2019 State Certification Alaska 17-018 Arkansas 88-0651 CLIA 42D0904046 California 2940 Colorado SC00012 Connecticut PH-0169 DoD ELAP/ ISO17025 A2LA 2567.01 Florida NELAP E87156 Foreign Soils Permit P330-15-00283, P330-15-00253 Georgia SC00012 Georgia SDWA 967 Hawaii SC00012 Idaho SC00012 Illinois NELAP 200029 Indiana C—SC-01 Kansas NELAP E-10332 Kentucky SDWA 90129 Kentucky Wastewater 90129 Louisiana NELAP 03046 (AI33904) Louisiana SDWA LA024 Maryland 270 Massachusetts M—SC012 Michigan 9976 Mississippi SC00012 Nebraska NE—OS-26-13 Nevada SC000122019-1 New Hampshire NELAP 2054 New Jersey NELAP SC002 New Mexico SC00012 New York NELAP 11501 North Carolina 233 North Carolina SDWA 45709 North Dakota R-158 Oklahoma 9904 Pennsylvania NELAP 68-00485 Puerto Rico SC00012 S. Carolina Radiochem 10120002 South Carolina Chemistry 10120001 Tennessee TN 02934 Texas NELAP T104704235-19-14 Utah NELAP SC000122018-27 Vermont VT87156 Virginia NELAP 460202 Washington C780 age 11 of 11 SDG: 471548 a acdity: Town of Maiden tat • Researc& alyi.4 Laboratories r . esponsib e harge Effluent Toxicity Report Form -Chronic Fathead Minnow Multi -Concentration Test N'1 �0 39594 ipe 001 ounty: Catawba ommen s Final Effluent nvironmenta ciences ranc Division of Water Quality NC DENR 1621 Mail Service Center Raleigh, NC 27699-1621 Test Initiation Date/Time 7/22/2020 / 1:48PM % Eff. Control 1 Repi. Surviving # Original # WUoriginal (mg) 5.501 Surviving # Original # Wt/original (mg) 8.001 Surviving # Original # Wt/original (mg) 11.001 Surviving # Original # Wt/original (mg) 16.501 Surviving # Original # Wt/original (mg) 1 22.001 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)'nit/Fin DO(mg/L)IntlFin Temp (C) Init/Fin 1 2 15 15 0.7707 15 15 0.7760 15 15 0.7740 15 15 0.7820 3 4 15 15 0.7807 15 15 0.7693 15 15 0.7747 15 15 0.7613 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 (mglL) Conductivity (umhos/cm) 15 15 0.7780 15 15 0.7687 15 15 0.7713 15 15 0.7827 0 15 15 0.7787 15 15 0.7747 15 15 0.7747 15 15 0.7787 1 7.07 / 7.05 ! 7.10 / 7.04 8.6 / 8.4 8.6 / 8.3 24.6 / 24.7 ! 24.6 / 24.6 15 15 0.7740 15 15 0.7760 15 15 0.7720 15 15 0.7760 2 15 Avg vvuourv. Control 0 7750 15 0.7787 15 15 0.7807 15 15 0.7680 15 15 0.7713 Day % Survival Avg Wt (mg) Survival i oo.01 0.77501 100.0! Avg Wt (mg)) 0.77i ] % St✓vrvival Avg Wt (mg) Survival Avg Wt (mg) % Survival Avg Wt (mg) • % Survival 100.01 0.77741 100.0I 0.77501 100.0 0.77151 100.0I Avg Wt (mg) 3 4 7.09 / 7.07 7.13 / 7.10 8.6 / 8.2 8.5 / 8.1 24.5 / 24.6 24.5 / 25.6 7.08 / 7.11 8.6 / 8.3 25.6 / 25.2 0.77471 5 6 Date:7/31 /2020 Test Organisms 7.14 / 7.10 7.06 / 7,04 8.5 / 8.2 8.5 / 8.1 25.7 / 24.9 25.3 / 0 6.94 / 6.96 8.6 / 8.4 24.5 / 24.6 1 6.98 / 6.95 8.6 / 8.2 2 7.00 / 6.96 3 6.97 / 6.94 24.6 / 24.5 4 7.03 / 6.98 8.6 / 8.2 5 6 7.01 / 7.00 8.4 / 8.0 25.1 7.06 / 7.04 8.5 / 8.2 8.5 / 8.1 8.5 / 8.2 24.5 / 25.6 25.6 / 24.5 24.5 / 24.7 24.8 / 25.0 24.6 / 25.0 1 2 3 7/20/2020 24 43 36 371 0.01 2.6 7/23/2020 24 45 32 321 0.02 1.8 7/26/2020 24 40 30 311 0.02 2.5 r Cultured In -House p Outside Supplier Hatch Date: 7/20/2020 Hatch Time: >1600 Survival Growth Overall Result Normal In 1i ChV Horn. Var. (tom•(. F1':. NOEC 22.00 22.00 LOEC >22.0% >22.0% ChV >22.0% >22.0% Method Steels Dunnetts Stats Survival Growth Conc. Critical Calculated Critical Calculated 5.50 10 21 2.41-0.6118 8.00 10 20.5 2.41-0.6694 11.00 10 19 2.41 0.0000 16.50 10 14.5 2.41 1.0148 22.00 10 • 18 2.41 0.1008 >22.0°10 DWQ Form AT-5 (1/04)