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HomeMy WebLinkAboutNC0020184_Fact Sheet-Final_20211201Draft Fact Sheet NPDES Permit No. NC0020184 Permit Writer / Email Contact Diana Yitbarek / diana.yitbarek@ncdenr.gov Date: 12/1/2021 Division/Unit: NC DEQ Division of Water Resources / NPDES Municipal Permitting Unit Fact Sheet Template: Version 1/9/2017 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, three effluent pollutant scans, four 2nd species WET tests. • For Existing Dischargers (Non-POTW), EPA Form 2C with correct analytical requirements based on industry category. 1. Basic Facility Information Table 1. Facility Information Facility Information Applicant/Facility Name: City of Gastonia/Long Creek Wastewater Treatment Plant (WWTP) Applicant Address: PO Box 1748, Gastonia, NC 28053 Facility Address: 3000 Old Spencer Mountain Road, Dallas, NC 28034 Permitted Discharge Flow: 16 0 million gallons per day (MGD) Facility Type/Waste: Major Municipal/ Domestic & Industrial Facility Class: Class IV Biological - 15A NCAC 08G .0302 Treatment Units: Influent pump station, two mechanical bar screening and grit removal structures, three primary clarifiers, four trains of anaerobic-anoxic-oxic basins, denitrification basin, four secondary clarifiers, one tertiary filter, backwash holding tank, chlorine contact basin and dechlorination structure, static aereators, dissolved air flotation unit, six anaerobic digesters, waste activated sludge system, solids contact reactor (not in operation), intermediate lift station, and three stand by power generators Pretreatment Program (Y/N) Y County: Gaston Region: Mooresville Regional Office (MRO) Page 1 of 22 Permitting Action: This Facility is owned by the City of Gastonia and operated and maintained by Two Rivers Utilities (TRU). TRU applied for the NPDES permit renewal for Long Creek WWTP in August 2019. The WWTP has a design capacity of 16.0 MGD and is currently authorized to discharge 16.0 MGD into South Fork Catawba River, classified as WS-V. The class denotes use as water supply. The Long Creek WWTP (Facility) serves about 68,700 customers within the City and five municipalities (Ranlo, High Shoals, Stanley, and a portion of Lowell and Dallas). The City has a full pretreatment program with 16 significant industrial users (SIUs). August 1, 2019, City's cover letter for renewal application requested to increase BOD5 summer limits, reduce monitoring frequency for TSS, ammonia, and fecal coliform to twice per week, and reduce instream monitoring to once per week. These requests are addressed below in this fact sheet. Also, the City requested to add a supplemental nutrient allocation to the Eagle Road WWTP's permit. Since the Eagle Road WWTP permit and Long Creek WWTP permit have combined nutrient allocations, the nutrient section for both permits will be modified. Facility Background: The 16.0 MGD Facility consists of anaerobic sludge digestion followed by land application. In the 90s, the Facility dealt with inflow and infiltration (I/I) and effluent limitations compliance issues. Under the terms of the 1997 Special Order by Consent (SOC), the Facility enforced pretreatment and addressed I/I problems. It also entered into a Toxicity Reduction Evaluation (TRE) to determine the cause of the toxicity. Following the 1995 Lake Wylie TMDL nutrient control management strategy, the Facility undertook significant improvements to meet the nutrient limits. Since 1998, the Long Creek plant has experienced far fewer compliance problems. In 1999, the City decommissioned its Catawba Creek WWTP and re-routed the waste to the Facility. This project also involved relocating the outfall from Long Creek to its current location at the South Fork Catawba River. In 2017, TRU's staff expressed concerns about unusual plastic material in the biosolids in the digesters and the lagoons. TRU solved this issue in a process that took from December 2017 to April 2020. The process included assessing the impacted residuals on Gastonia's permitted land; installing temporary filtering systems to capture plastics and glass fibers to prevent plastic particles from escaping in the effluent and installing pretreatment for glass fibers at the industry that caused the issue at Eagle Road WWTP, Syncot Plastics. The resulting glass fiber contaminated biosolids from the digesters, and biosolids at both Eagle Road WWTP and Long Creek WWTP were pressed and landfilled. The Facility continues to operate as an advanced biological nutrient removal plant. Some of the recent upgrades mentioned in the application package included upgrading the internal reuse water system, renovation of the chlorine and sulfur dioxide feed systems, and connecting a portion of Dallas'WWTP (NC0068888) effluent flow to the system 2. Receiving Waterbody Information: Table 2. Receiving Waterbodv Information Outfalls/Receiving Stream(s): Outfall 001 [35°18'38.0"N 81°06'54.0"W]/ South Fork Catawba River Stream Segment/Assessment Unit (AU): 11-129-(15.5) Stream Classification: WS-V Page 2 of 22 Drainage Area (mi2): 558* Summer 7Q10 (cfs) 109* Winter 7Q10 (cfs): 200* 30Q2 (cfs): 272* Average Flow (cfs): 653* Instream Waste Concentration (IWC) (% effluent): 19 % at 16.0 MGD (7Q10S) 303(d) listed/parameter: Yes - 2020 draft 303(d) list/ Turbidity Subject to TMDL/parameter: Yes - Mercury Statewide TMDL implemented in 2012 Yes — Nitrogen and Phosphorous - Lake Wylie TMDL 1995 Catawba River Basinwide Water Quality Management Plan Basin/Sub-basin/ Hydrologic unit code (HUC): Catawba River Basin/03-08-36/0305010206 USGS Topo Quad/State Grid: Mount Holly/F 14SE *Low Flow values taken from previous spreadsheets per Division Guidelines. (2001 — 2017) This Facility is subject to 1995 Lake Wylie's total maximum daily load (TMDL), a nutrient control management strategy for the Lake Wylie watershed. The TMDL strategy included requirements for facilities to meet stringent nutrient removal goals. Long Creek WWTP undertook major improvements to meet the nutrient limits. The receiving stream, South Fork Catawba River, was listed in the NC draft 2020 303(d) list for Turbidity (50 Nephelometric Turbidity Units (NTU), AL, FW miles). This stream is located from a point 0.4 mile upstream of Long Creek to Cramerton Dam and Lake Wylie at Upper Armstrong Bridge. It is the Division's expectation that the TSS loading limit for discharges to streams impaired for turbidity should not be allowed to increase. When a TMDL is established, TSS permit limits are revised to be consistent with any new wasteload allocation. 3. Effluent Data Summary Effluent data for Outfall 001 is summarized below from May 2016 through February 2021. Table 3. Effluent Data Summary with permit limits Outfall 001. Parameters listed as in the last permit. Parameter Units Average Max. Min. Permit Limit Flow MGD 7.8 27.2 4.1 MA* 16.0 MGD BOD5 (Summer) mg/1 3.2 14.2 2.0 MA 5.0 mg/I WA* 7.5 mg/I BOD5 (Winter) mg/1 3.7 18.5 2.0 MA 10.0 mg/1 WA* 15.0 mg/I Total Suspended Solids (TSS) mg/1 3.0 12.8 2.5 MA 30.0 mg/I WA 45.0 mg/I NH3N (Summer) mg/1 0.2 5.0 0.1 MA 2.0 mg/I Page 3 of 22 WA 6.0 mg/I NH3N (Winter) mg/1 0.6 8.1 0.1 MA 4.0 mg/I WA 12.0 mg/I Dissolved Oxygen (DO) mg/1 9.3 13.9 6.5 DA*>_ 6.0 mg/I Fecal Conform #/100 ml 4.2 (Geomean) 5600 1.0 MA 200/100m1 WA 400/100m1 Temperature °C 21 29 11 Total Hardness mg/1 55.3 82.0 36.0 pH SU 6.9 7.8 5.9 6.0 < pH < 9.0 Total Residual Chlorine (TRC) µg/1 20.8 48.4 20.0 DM* 28.00 pg/I TKN mg/1 1.75 9.10 0.70 NO3-N + NO2-N mg/1 4.09 14.20 0.50 Total Nitrogen (TN) mg/1 5.47 16.20 0.70 TN Load lb/month 11,043 18,272 5,555 TN Load lb/season 47,395 112,921 6,924 171,3371b/season (S) 241,763 lb/season (W) Total Phosphorus (TP) mg/1 0.38 7.80 0.10 MA 1.0 mg/I TP Load lb/month 836 3,142 224 TP Load lb/year 6,340 15,309 224 48,706 lb/year *MA -Monthly Average, WA -Weekly Average, DM -Daily Maximum, DA=Daily Average. Table 4. Effluent Data Summary from expanded effluent pollutant scan Outfall 001 Parameter Units Average Max. Antimony µg/1 1.4 5.0 Arsenic µg/1 1.3 2.6 Bromoform µg/1 3.1 7.3 Cadmium µg/1 0.5 1.0 Chlorodibromomethane µg/1 5.5 9.1 Chloroform µg/1 6.8 20.0 Chromium µg/1 3.4 9.0 Copper µg/1 2.8 5.0 Cyanide µg/1 11.2 44.0 Dichlorobromomethane µg/1 6.3 12.0 Fluoride µg/1 0.15 0.2 Lead µg/1 1.03 2.0 Mercury* ng/1 1.08 1.79 Molybdenum µg/1 8.8 34.0 Nickel µg/1 5.4 42.0 Selenium µg/1 2.5 5.0 Zinc µg/1 47.5 87.0 *See section 6.6 Mercury Statewide Total Maximum Daily Load (TMDL) Evaluation Page 4 of 22 Sample results for the sampled metals not included above, such as beryllium, silver, and thallium, were less than the method detection limit. The compounds in the above table were analyzed in the reasonable potential analysis (RPA) and discussed below in the RPA section of this fact sheet. The Permittee has voluntarily collected effluent color samples. See the color data summary in the table below. Table 5. Effluent Data Summary for Color Monitoring at Outfall 001 Parameter Units Average Max. Color, Spectrophoto- Metric Filter ADMI unit 27.8 40.0 In 2001, the Facility was required to perform effluent and instream color monitoring as part of the South Fork Catawba River Water Quality Alliance, which undertook a study of color dischargers in the river to address the aesthetic concerns. The result was the 2001 NPDES Color Permitting Policy, under which Gastonia -Long Creek was classified as a Tier 2 Facility. Later, after a major industrial contributor closed, Fleishman's Yeast, the Facility requested to be re-classified as a Tier 1. With the loss of that industrial contribution, effluent color levels went from an average of 558 ADMI to 40 ADMI. Due to this dramatic decrease in color levels, it does not appear that the Facility currently has an effect on instream color levels. The requirement for color monitoring was removed from the permit in 2017, and the current levels continue to show that color is not a pollutant of concern for this Facility. 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 total maximum daily load (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). Instream data summary and instream monitoring proposed for this permit action: The current permit requires instream [upstream (U) and downstream (D)] monitoring for dissolved oxygen, temperature, conductivity, and hardness at one upstream location and two downstream locations (D1 and D2). The U location is about 2000 feet above the outfall near GW Hardy Road. DI and D2 locations are about 850 feet from the outfall near Ranlo-Spencer Mountain Road and 4.0 miles from the outfall at NC-7, respectively. The figure below summarizes instream and effluent (Eff) data from the analyzed period, June 2016 - February 2021. The outfall location is about 1.0 mile from the WWTP's effluent sampling point. Page 5 of 22 Figure 1. Average, maximum, and minimum instream and effluent data summary 16.00 14.00 12.00 10.00 8.00 6.00 4.00 2.00 0.00 ■ Average • Max • Min DO, mg/I Upstream 8.63 14.60 Effluent 9.26 13.90 5.90 6.50 200.00 180.00 160.00 140.00 120.00 100.00 80.00 60.00 40.00 20.00 0.00 • Upstream • Downstream Downstream 9.00 14.60 35.00 30.00 25.00 20.00 15.00 10.00 5.00 0.00 ■ Average • Max 6.40 • Min Conductivity, µmhos/cm Average Max 77.59 134.70 103.76 187.60 Temperature, °C Upstream 20.18 30.50 0.00 Min 28.00 38.00 T-tests were run to analyze relationships between instream sample results. A statistically significant difference is determined when the t-test p-value result is < 0.05. Effluent 20.98 29.00 11.00 Downstream 19.76 31.00 1.00 DO: The minimum downstream DO detected was 6.4 mg/1, and the maximum DO differential between the upstream and downstream samples was 2.2 mg/l. Instream DO was consistently above the standard of 5 mg/1 [per 15A NCAC 02B .0211 (6)] at both the upstream and downstream sampling sites throughout the period reviewed. It was concluded that there is no statistically significant difference between upstream and downstream DO. Temperature: The maximum downstream temperature was 31 degrees Celsius, and the maximum temperature differential between the upstream and downstream samples was three degree Celsius on July 21, 2020- this differential was greater than the standard of 2.8 degrees Celsius (15A NCAC 02b .0211 (18)). It was a one-time situation and based on the t-test was concluded that there is no statistically significant difference between the upstream and downstream temperatures. Conductivity: The maximum downstream Conductivity was 187.6 µmhos/cm, and the maximum conductivity differential between the upstream and downstream samples was 63 µmhos/cm. It was Page 6 of 22 concluded that there is a statistically significant difference between the upstream and downstream conductivity. Currently, effluent conductivity is not required by the permit. Hardness: Effluent hardness and instream hardness sampling, upstream of the discharge, are being sampled at a quarterly monitoring frequency following the 2016 Dissolved Metal Standards in order to calculate permit limitations for the seven metals that have hardness -dependent equations. See below the effluent and upstream data summary for hardness data from the analyzed period, June 2016 - February 2021. Figure 2. Average, maximum, and minimum upstream and effluent hardness summary 90.00 80.00 70.00 60.00 50.00 40.00 30.00 20.00 10.00 0.00 • Effluent • Upstream Hardness, mg/I Average Max Min 55.53 82.00 36.00 22.69 32.00 18.00 With this permit renewal package, TRU requested to reduce instream monitoring to once per week; however, per 15A NCAC 02B .0500 upstream and downstream monitoring in Water Quality -limited waters is to be conducted 3/week during June, July, August, and September, and 1/week during the rest of the year, as specified in the current permit. No changes are proposed for instream monitoring frequency. The Division maintains two ambient monitoring stations in the South Fork Catawba River. One station is at SR 7 near McAdenville downstream of the Long Creek WWTP (upstream of Eagle Road WWTP), and the other station is downstream of the Eagle Road WWTP at SR 2524. Table 6. Ambient Monitoring Stations South Fork Catawba River (SFCR) Station ID Location Parameters Monitored Collection Dates C650000 SFCR at SR 7 near McAdenville Ammonia, Nitrate & Nitrite, TKN, TP 2017 through 2019 C700000 SFCR at SR 2524 (Armstrong Rd) Ammonia, Nitrate & Nitrite, TKN, TP 2017 through 2019 Table 7. Ambient Monitoring Stations C650000 and C700000 Data Summary from January 2017 to June 2019 Parameter C650000 C700000 Ammonia, mg/1 Average 0.045 0.044 Maximum 0.22 0.13 Min 0.02 0.02 Nitrate & Nitrite, mg/1 Average 0.84 0.45 Maximum 1.4 0.76 Min 0.58 0.13 TKN, mg/1 Average 0.53 0.45 Maximum 1.5 0.98 Page 7 of 22 Min 0.28 0.28 TP, mg/1 Average 0.15 0.07 Maximum 0.48 0.26 Min 0.07 0.03 Is this Facility a member of a Monitoring Coalition with waived instream monitoring (Y/N): NO Name of Monitoring Coalition: NA 5. Compliance Summary From May 2016 to February 2021 the Facility did not receive any notices of violation (NOVs), and there were no violations that proceeded to enforcement case. There were three BOD5 exceedances and two events in which the pH daily minimum was not reached that rolled as notice of deficiency (NOD). The MRO representative, Ori Tuvia, is working with the Facility to monitor the Facility's compliance performance. The report on limit violations that proceeded to NOD were as follows: • BOD5 - 2 WA limit exceedance and 1 MA limit exceedance in 2019. • pH - 2 Daily Minimum not reached in 2020. Summary of the compliance record with aquatic toxicity test limits and any second species test results (past 5 years): The Facility passed sixteen of sixteen quarterly chronic toxicity tests from March 2017 to March 2021 and complied with all four 2nd species WET tests (6/2018, 9/2018, 12/2018, and 3/2019). Summary of the results from the most recent compliance inspection: The last Facility inspection conducted in September 2020 reported that the Facility appeared to be properly operated and well maintained. During the inspection, two of three primary clarifiers were in service, and three of the four secondary clarifiers were in operation. It was noted that the influent and effluent flow meters are calibrated twice per year, and the screenings and grit are disposed in the County landfill. The sludge is disposed under permit WQ0001793 — Resource and Recovery Farm. The Facility is equipped with three standby generators. 6. Water Quality -Based Effluent Limitations (WQBELs) 6.1 Dilution and Mixing Zones In accordance with 15A NCAC 2B.0206, the following stream flows 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 15A NCAC 2B. 0204(b): NA Stream flow values were extracted from the previous fact sheets (2001 — 2017). Page 8 of 22 6.2 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 current permit sets summer and winter limits for BOD5 and are based on the speculative wasteload allocation developed in 1994. The summer BOD5 MA limit is 5.0 mg/L, and the WA limit is 7.5 mg/L, and the winter BOD5 MA limit is 10.0 mg/1, and the WA limit is 15.0 mg/1. These limits are needed to prevent impacts on the stream. In this permit cycle, TRU requested that the winter BOD5 MA limit of 10.0 mg/1 and WA limit of 15.0 mg/1 be in effect year-round. In order to take into account this request, the Permittee would need to develop a study that demonstrates that the proposed limits would not affect the stream. The request would also need to consider 15A NCAC 02B .0404 for which the summer limit would be the year-round limit and the Permittee must also address antibacksliding during the summer period. For this permit renewal, the BOD5 limits will remain the same as the previous permit cycle. The current BOD5 limits were set with the increase in permitted flow to 16.0 MGD; the BOD5 loading decreased from about 734 to 667 lbs/day (monthly averages) in the summer and from about 1468 to 1334 lbs/day (monthly averages) in the winter. Figure 3. BOD5 Effluent Data Summary and BOD5 Percental Removal Rate 20 18 16 14 12 10 8 6 4 2 0 Effluent BOD5, mg/I • • • ile I I00 ti ° • • •• V) ti 0 Z n c n ti 0 0o ti m ti 0J m ti m Q 1 100.00 99.00 98.00 97.00 96.00 95.00 94.00 93.00 BOD5 Removal Rate (%) 92.00 lD lD r, n n 00 00 00 at at at O O O .-I .-i .-i .-i .-i .-i .-i .-i .-i .-i .-i .-i N N N N > a c > a c > a c > a c > a c aJ aJ aJ v 1 aJ 2 Over the time period evaluated, the lowest BOD5 percent removal was 94.6% and the highest effluent loading was 18.5 mg/L (1,506 lb/day). Since the BOD5 limits were set through modeling, the summer limits could be revised upon receiving a modeling study proposed by the Permittee. At the present moment, the draft Permit retains the existing BOD5 daily maximum limit. Page 9 of 22 6.3 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: Ammonia: There are no proposed changes for ammonia. The current permit sets summer and winter MA and WA limits for ammonia. The summer ammonia MA limit is 2.0 mg/L, and the WA limit is 6.0 mg/L, and the winter ammonia MA limit is 4.0 mg/1, and the WA limit is 12.0 mg/1. The MA limits were based on the 1994 speculative limits. The winter or summer MA limit was not exceeded in the evaluated period, and none of the ammonia results from the evaluated period exceeded 35 mg/1. The ammonia limits will be the same as the previous permit cycle. TRC: The Facility uses chlorination as its primary disinfection. Filter effluent is disinfected in an open chlorine contact chamber by injection of chlorine solution. Sulfur dioxide is injected into the chlorinated effluent for dechlorination. The current permit limits TRC at 28 ug/L as a daily maximum. Though several reported TRC values exceeded the 28 ug/L daily maximum limit, the Facility is considered compliant with its permit since all reported values were less than 50 ug/L. The maximum TRC value reported was 48.4 ug/L. The TRC limit has been reviewed in the attached WLA and has been found to be protective. No changes are proposed for TRC. 6.4 Reasonable Potential Analysis (RPA) for Toxicants 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 Y2 detection limit for "less than" values; and 4) stream flows used for dilution consideration based on 15A NCAC 2B.0206. Effective April6, 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. The RPAs were conducted for permitted flows of 16.0 MGD with a 7Q 1 OS of 109 cubic feet per second (cfs) and site -specific hardness values. The answers below are based on the RPA. RPAs were conducted on effluent toxicant data collected in the Permittee's 2017 to 2019 effluent pollutant scans and DMRs. Pollutants of concern included toxicants with positive detections and associated water quality standards/criteria. The data set was limited for beryllium, chloroform, chlorodibromomethane, dichlorodibromomethane, and bromoform. Based on this analysis, the following permitting actions are proposed for this permit: Page 10 of 22 • 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: Cyanide, chlorodibromomethane, and dichlorobromomethane • 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: Arsenic, beryllium, cadmium, chromium, copper, lead, molybdenum, nickel, selenium, silver, zinc, chloroform, bromoform, and total phenolic compounds • These compounds will be monitored in the pretreatment program during this permit cycle: Antimony, arsenic, cadmium, chromium, copper, cyanide, mercury, molybdenum, nickel, lead, selenium, silver, zinc, TN, TP, TKN, NOx, chlorodibromomethane, dichlorobromomethane, and fluoride • POTW Effluent Pollutant Scan Review: Three effluent pollutant scans were evaluated for additional pollutants of concern. o The following parameter(s) will receive a water quality -based effluent limit (WQBEL) with monitoring, since as part of a limited data set, two samples exceeded the allowable discharge concentration: NA 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: NA RPA results as well as a copy of the Dissolved Metals Implementation Fact Sheet for freshwater are included as attachments of this Fact Sheet. 6.5 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: This is a Major Publicly Owned Treatment Work (POTW), and a chronic WET limit will continue to be required on a quarterly frequency at Outfall 001 at 19% at 16.0 MGD using Ceriodaphnia dubia. Per 40 CFR 122.21(j)(5)(v), tests with multiple species will continue to be required as well. Permit Section A. (7.) (d) requires four (4) tests with multiple species. 6.6 Mercury Statewide Total Maximum Daily Load (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 multiple quantifiable levels of mercury (>1 ng/1) Page 11 of 22 received 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 A mercury evaluation was conducted in accordance with the Permitting Guidance developed for the implementation of the statewide Mercury TMDL to determine the need for a limit. The Facility implemented an MMP in September 2017. Below find summaries of compliance mercury data from 2017 to 2021. Based on the dataset, the water quality -based effluent limitation (WQBEL) for mercury is 64.7 ng/1, and the technology -based effluent limit (TBEL) is 47 ng/1. Table 8. Mercury Effluent Data Summary and Evaluation p2017 2018 2019 2020 2021 # of Samples 5 4 7 10 1 Mercury Annual Average (ng/1) 0.8 0.8 0.8 0.56 0.5 Mercury Annual Max (ng/1) 1.34 1.66 1.7" 1.13 0.5 TBEL, ng/L 47 WQBEL, ng/L 64.7 Describe proposed permit actions based on mercury evaluation: Mercury evaluation results used EPA method 1631E. No annual average mercury concentration exceeded the WQBEL, and no individual mercury sample exceeded the TBEL. The maximum value reported in this period was 1.79 ng/1. No mercury limit is required, and the mercury minimization plan (MMP) will continue to be required in this permit cycle because multiple quantifiable levels of mercury were >1 ng/1. 6.7 Other TMDL/Nutrient Management Strategy Considerations If applicable, describe any other TMDLs/Nutrient Management Strategies and their implementation within this permit: Lake Wylie TMDL The Facility is subject to the Lake Wylie Nutrient TMDL and Management Strategy, which addresses eutrophic conditions and chlorophyll -a water quality violations in the North Carolina portion of Lake Wylie and its tributaries. The TMDL was developed in 1995 and approved by the EPA in 1998. The Strategy set TN and TP load allocations for the lake and each major tributary. It then set individual mass load allocations (and the equivalent concentrations) for existing large WWTPs and provided a process to allow for new/expanding discharges. In the year 2000, the Division included permit limits of 6.0 mg/L (summer only) for Total Nitrogen (TN) and 1.0 mg/L (year-round) for Total Phosphorus (TP) in the affected permits. Technology -based TN and TP allowances for the existing industries (Clariant Corporation, NC0004375; Pharr Yarns, NC0004812; and Kings Mountain Venture #1, NC0005274) were set based on BAT determinations prepared by each Facility. Page 12 of 22 (For the purposes of the following explanation, "allocation" means a water -quality -based cap on the amount of nutrients that a permittee can potentially discharge, as established in a TMDL, applicable rule, or other mechanism. On the other hand, "allowance" means a technology -based cap, such as through a BAT determination.) In 2013, Clariant sold most of its TN and TP allocations to the City of Charlotte for a planned wastewater facility. Subsequently, other permittees expressed interest in transferring allocations ("trading"). In order to be transferred between facilities, allocations must be expressed as mass loads. In response to the increased interest, the Division calculated the mass load allocations for the facilities subject to the TMDL. In addition to the TMDL's summer limits for TN and year-round limits for TP, it established new winter allocations and limits for TN, equivalent to 12 mg/L TN. The Division now implements nutrient controls in Lake Wylie using the following approach: • The distribution of nutrient allocations — and any transfer of allocations — must be consistent with the approved Lake Wylie TMDL. a. The point source allocations assigned in the TMDL to the lake and its tributaries are valid only in the original study area and cannot be transferred outside that area except through modification of the TMDL and the approval of EPA Region 4. b. Similarly, the tributary allocations identified in the TMDL are only valid within the assigned subwatersheds and cannot be transferred elsewhere without EPA approval. • Within each subwatershed, transfers and other changes in allocations cannot result in exceedance of the tributary allocations in the TMDL. If additional industrial facilities request allocations based on BAT determinations (none are foreseen at this time), the Division will consider the request with Region 4. • Only those allocations that were identified in the TMDL (WWTPs) and approved allowances (industries with approved BAT determinations) are valid. Facilities within the Lake Wylie study area cannot receive credit for connecting other WWTPs located within or outside of the study area. • No transfer of allocation will be incorporated into NPDES permits until the Division is satisfied that the transfer will not result in localized impacts ("hot spots"). • TN allocations and limits will be implemented as follows: a. Summer mass TN allocations and limits for all affected dischargers will be set based on the summer daily loads in the TMDL; b. Winter allocations and limits will be based on 12 mg/L or other approved BAT determinations; c. Summer and winter mass TN allocations and limits for affected industries will be based on a proportional split of the annual values, that is, 214/365 of the annual allowance for summer and 151/365 for winter. • TP allocations and limits will be implemented as annual mass values based on daily loads specified on the TMDL or an approved BAT determination. Page 13 of 22 Applicable Nutrient Limits; Performance. In its 2013 renewal application, Gastonia requested "bubble" limits for TN and TP for its Long Creek facility (NC0020184) and its Eagle Road WWTP (NC0006033). The revised limits were included when the permits were renewed in 2017. In both permits, the monthly average TP limit of 1.0 mg/L was replaced with an annual TP Load limit, and summer and winter TN Load limits (lb/season) were added. With the 2017 permit renewal, Gastonia requested to add the loads from the following decommissioned facilities: Ranlo, High Shoals, McAdenville, and Pharr Yarns. The towns of Ranlo, High Shoals, and Stanley were connected to the Long Creek Facility but were not included in the TMDL as they were minor facilities. As such, they did not have allocations in the approved TMDL implicit or explicit. The individual allocations and combined limits at Outfall CO1 and the actual discharge loads for 2015-2020 are as follows: Table 9. Summary of Performance - Nutrients, 2015-2020 [Eagle Road WWTP (NC0006033) & Long Creek WWTP (NC0020184)] Facility Period 2015 2016 2017 2018 2019 2020 2017 Alloc'n/Limit Long Creek Summer TN load, lb/summer 32,536 40,233 48,080 62,078 61,615 74,732 171,337 Eagle Road Summer TN load, lb/summer 31,598 30,499 29,987 29,771 35,272 37,973 42,834 Combined TN Discharge, lb/summer 64,134 70,732 78,067 91,849 96,887 112,705 214,171 Long Creek Winter TN load, lb/winter 75,322 88,536 72,703 75,596 66,444 67,769 241,793 Eagle Road Winter TN load, lb/winter 20,845 21,662 21,749 21,859 26,406 32,649 60,448 Combined TN Discharge, lb/winter 96,167 110,198 94,452 97,455 92,850 100,418 302,241 Long Creek Annual TP load, lb/yr 5,515 3,774 5,968 13,706 6,629 9,996 48,706 Eagle Road Annual TP load, lb/yr 1,112 990 926 1,602 2,398 3,784 12,176 Combined TP Discharge, lb/year 6,627 4,764 6,894 15,308 9,027 13,780 60,882 Figure 4. Long Creek's seasonal TN load summary from 2017 to 2020. 80,000 70,000 60,000 50,000 40,000 30,000 20,000 10,000 Summer TN load, lb/summer Winter TN Toad, lb/winter Seasonal TN load, lb/season 2017 2018 2019 2020 48,080 62,078 61,615 74,732 72,703 75,596 66,444 67,769 Page 14 of 22 Figure 5. Long Creek's annual TP load summary from 2017 to 2020. 16,000 14,000 12,000 10,000 8,000 6,000 4,000 2,000 Annual TP load, Ib/yr 2017 2018 2019 2020 Changes in Nutrient Allocations/ Allowances. In 2017, Pharr Yarns was an industrial facility with a discharge of domestic and industrial wastewater not connected to the Long Creek Facility, discharging directly to the South Fork Catawba River. In January 1, 2021, the Pharr Yarns permit (NC0004812) was rescinded, and with this permit renewal, Gastonia requested the inclusion of Pharr Yarns' nutrient allocation in the permit for the Eagle Road WWTP. The Division is adding the nutrient allocation previously activated for Pharr Yarns (8,031 lb/season (TN Summer); 5,667 lb/season (TN Winter); and 1,522 lb/season (annual TP)). For the purpose of setting nutrient effluent limitations, the Long Creek and Eagle Road allocations continue to be combined and are being modified to reflect increases in the Eagle Road allocations resulting from its connection of the Pharr Yarns facility. The revised combined allocations and "bubble" limits for Outfall C01 are as follows: Table 10. 2021 Nutrient Allocations for Eagle Road WWTP and Long Creek WWTP Permit Facility Total Nitrogen Summer (lb/season) 1,3 Total Nitrogen Winter (lb/season) 1,3 Total Phosphorus Annual (Ib/yr) 2,3 NC0020184 Long Creek WWTP 171,337 241,793 48,706 NC0006033 Eagle Road WWTP 42,834 (effective through 60,448 (previously eff. 12,176 (effective through 10/31/2021) through 3/31/2021) 12/31/2021) Combined Load Limitations 214,171 302,242 60,882 Page 15 of 22 Permit Facility Total Nitrogen Summer (lb/season) 1,3 Total Nitrogen Winter (lb/season) 1,3 Total Phosphorus Annual (Ib/yr) 2,3 (effective through (previously eff. (effective through 10/31/2021) through 3/31/2021) 12/31/2021) 50,866 66,115 13,698 NC0006033 Eagle Road WWTP4 (revised eff. revised 4/1/2022 eff. 11/1/2021) (eff. 1/1/2022) 222,203 307,908 62,404 Combined Load Limitations4 (revised eff. Irel (eff. 1/1/2022) 4/1/2022 eff. 11/1/2021) Footnotes: 1. In accordance with the 1995 Lake Wylie TMDL, summer values apply April 1 - October 31 and winter values apply November 1 - March 31. 2. Total Phosphorus values applies for the calendar year; January 1 to December 31. 3. All values are displayed to the nearest pound. The Combined Load Limitations may not equal the apparent sum due to the effects of rounding the individual values. 4. Limitations include the addition of Pharr Yarns allocations (8,031 lb/season (TN Summer); 5,667 lb/season (TN Winter); and 1,522 lb/season (annual TP)) Allowances Held in Reserve. On December 27, 2017, the City of Gastonia entered into a contract with Lowell Investments I, LLC (NC0005274; originally owned by Crompton and Knowles, later by Kings Mountain Venture #1) for the purchase of its TN and TP allowances. Per the Contract, Lowell Investments, whose permit is now rescinded, sold its nitrogen and phosphorus allowances to the City "for the sole purpose of having the Total Allocation held in reserve under Buyer's NPDES permit," and the City has the exclusive option to activate those allocations for its own discharge in return for a final payment to Lowell Investments. Gastonia can execute its option and acquire the allowances for a period of up to 15 years (with allowable extensions), such as for a future expansion. Until that time, at least, the allocations for the Eagle Road facility are not affected by this transaction. The TMDL does not address transfers ("trades"), and the Strategy is not implemented through rule. However, other nutrient strategies include provisions that are relevant and, in the Division's best professional judgment, can be applied here. For instance, in other river basins or watersheds, facilities cannot purchase allocation to increase their original limits until those facilities are expanded; and, at that time, the increased nutrient load limits (its "active" allocations) cannot exceed the equivalent of the new permitted flow and specified treatment performance standards, given as annual average concentrations. Any allocations in excess of this amount are held in reserve until they are eligible for use. 6.8 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 16 of 22 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/l BOD5/TSS for Monthly Average, and 45 mg/l for BOD5/TSS for Weekly Average). YES If NO, provide a justification for alternative limitations (e.g., waste stabilization pond). NA Are 85% removal requirements for BOD5/TSS included in the permit? YES If NO, provide a justification (e.g., waste stabilization pond). NA 8. Antidegradation Review (New/Expanding Discharge) The objective of an antidegradation review is to ensure that a new or increased pollutant loading will not degrade water quality. Permitting actions for new or expanding discharges require an antidegradation review in accordance with 15A NCAC 2B.0201. Each applicant for a new/expanding NPDES permit must document an effort to consider non -discharge alternatives per 15A NCAC 2H.0105( c)(2). In all cases, existing instream water uses and the level of water quality necessary to protect the existing use is maintained and protected. If applicable, describe the results of the antidegradation review, including the Engineering Alternatives Analysis (EAA) and any water quality modeling results: NA, but we did not agree to the BOD adjustment without additional information. 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. On the expiration of the permit, there were no TP and TN concentration limits in effect If YES, confirm that antibacksliding provisions are not violated: NA. We did not agree to the BOD adjustment without additional information. 10. Monitoring Frequency 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 Page 17 of 22 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. TRU requested that the required monitoring frequency for total suspended solids (TSS), ammonia, and fecal coliform be kept at twice per week. Upon evaluating the monitoring data, the Facility met the approval criteria for monitoring reduction for TSS, ammonia, and fecal coliform; therefore, the Facility is granted a reduction from existing permit monitoring frequencies (3/week) to a 2/week minimum monitoring frequency for TSS, ammonia, and fecal coliform. For instream monitoring, refer to Section 4. 11. Electronic Reporting Requirements The US EPA NPDES Electronic Reporting Rule was finalized on December 21, 2015. Effective December 21, 2016, NPDES regulated facilities are required to submit Discharge Monitoring Reports (DMRs) electronically. While NPDES regulated facilities would initially be required to submit additional NPDES reports electronically effective December 21, 2020, EPA is proposing to extend this deadline from December 21, 2020, to December 21, 2025. This permit contains the requirements for electronic reporting, consistent with Federal requirements. 12.Summary of Proposed Permitting Actions Table 11. Current Permit Conditions and Proposed Changes for 16.0 M Parameter Current Permit Limits and Monitoring Frequency Proposed Change Basis for Condition/Change Flow MA 16.0 MGD Continuous monitoring No changes 15A NCAC 2B .0505 The average flow for the past five years was 7.8 MGD Total Monthly Flow Monthly monitoring No changes Needed to calculate nutrient loads BOD5 For 16.0 MGD Summer MA 5.0 mg/I WA 7.5 mg/I Winter MA 10.0 mg/I WA 15.0 mg/I Daily monitoring No changes; we did not accept the request to revise the summer limit Water quality based on 1994 speculative limits for protection of the DO standard TSS For 16.0 MGD MA 30 mg/I WA 45 mg/I Monitor 2/week Maintained monitoring frequency to 2/week TBEL. Secondary treatment standards/40 CFR 133 / 15A NCAC 2B .0406. The Facility met the approval criteria for monitoring reduction. NH3-N For 16.0 MGD Summer MA 1.5 mg/I Maintained monitoring frequency to 2/week Water quality based for protection of the DO standard - 1994 speculative limits Page 18 of 22 WA 4.4 mg/I Winter MA 1.4 mg/I WA 4.2 mg/I Monitor 2/week The Facility met the approval criteria for monitoring reduction. Conductivity Monitor and report instream at a variable** frequency Added effluent conductivity monitoring at a daily frequency Continue monitor and report instream at a variable** frequency The Facility has industrial dischargers 15A NCAC 02B .0508 - (SIC 4952) DO No less than 6.0 mg/I. Monitor and report instream at a variable** frequency Monitor effluent daily No changes WQBEL. State WQ standard, 15A NCAC 2B .0200, 15A NCAC 2B.0500 Fecal coliform (Geometric Mean) MA 200 /100m1 WA 400 /100m1 Monitor 2/week Maintained monitoring frequency to 2/week WQBEL. State WQ standard, 15A NCAC 2B .0200. The Facility met the approval criteria for monitoring reduction. Temperature Monitor effluent daily Monitor and report instream at a variable** frequency No changes 15A NCAC 2B.0200 and 15A NCAC 2B.0500 pH 6 — 9 SU. Monitor daily No changes WQBEL. State W.Q. standard, 15A NCAC 2B .0200 TRC DM 28.0 µg/I Monitor daily No changes WQBEL. State WQ standard, 15A NCAC 2B .0200. The Division considers all effluent TRC values reported below 50 ug/I to be in compliance with the permit Total Hardness Quarterly monitoring upstream and in effluent No changes Hardness -dependent dissolved metals water quality standards approved in 2016 TKN Monitor and report weekly No changes Lake Wylie TMDL permitting strategy NO3-N + NO2-N Monitor and report weekly No changes Lake Wylie TMDL permitting strategy Total Nitrogen (TN) Monitor and report weekly No changes Lake Wylie TMDL permitting strategy sets concentration limit of 6.0 mg/I (Summer) and 12.0 mg/I (Winter) for TN. In previous permit cycles, TRU Page 19 of 22 requested the removal of the TN concentration limit TN Load Monitor and report monthly and seasonally Summer combined allocation for Long Creek and Eagle Road: 214,171 lb/season Winter combined allocation for Long Creek and Eagle Road: 302,242 lb/season Monitor and report monthly and seasonally Summer combined allocation for Long Creek and Eagle Road: 222,203 lb/season Winter combined allocation for Long Creek and Eagle Road: 307,908 lb/season See table 10 for detailed effective dates. Lake Wylie TMDL permitting strategy. "Bubble Limits" for Long Creek and Eagle Road Total Phosphorus (TP) MA: 1 mg/I (through 12/31/2017) Monitor and report weekly Maintained existing weekly monitoring and reporting Lake Wylie TMDL permitting strategy set a concentration limit of 1.0 mg/I for TP. Per the permittee request, the TP concentration limit was removed in the previous permit cycle. The Division reviewed the current data projected for the full design flow and has decided not to reinstate the concentration limit. Over the past several years, the Lake Wylie permittees have focused entirely on mass limits, which are acceptable under the TMDL. TP Load Monitor and report monthly and seasonally (effective 1/1/18) Annual combined allocation for Long Creek and Eagle Road: 60,882 Ib/yr Monitor and report monthly and seasonally Annual combined allocation for Long Creek and Eagle Road: 62,404 Ib/yr See table 10 for detailed effective dates. Lake Wylie TMDL permitting strategy. "Bubble Limits" for Long Creek and Eagle Road. Total Cyanide None Added quarterly monitoring Based on results of Reasonable Potential Analysis (RPA); Predicted Max > 50% of Allowable Cw. 1 value > Allowable Cw. Apply Quarterly Monitoring Chlorodibromometha ne None Added quarterly monitoring Based on results of RPA; Predicted Max > Allowable Cw. No value > Allowable Page 20 of 22 concentration. Limited dataset - Apply quarterly monitoring Dichlorobromometha ne None Added quarterly monitoring Based on results of RPA; Predicted Max > Allowable Cw. No value > Allowable concentration. Limited dataset - Apply quarterly monitoring Toxicity Test Chronic limit, 19% at 16.0 MGD No changes WQBEL. No toxics in toxic amounts. 15A NCAC 2B.0200 and 15A NCAC 2B.0500 Effluent Pollutant Scan Three times per permit cycle for 16.0 MGD Next scans must be performed in each of the following years: 2024, 2025, and 2026. 40 CFR parts 423 and 122 Mercury Minimization Plan (MMP) MMP 'or 16.0 MGD No changes Consistent with EPA approved 2012 Statewide MercuryTMDL Implementation. Electronic Reporting Electronic reporting special condition for 16.0 MGD Added language for new electronic reporting deadline December 21, 2025 In accordance with EPA Electronic Reporting Rule 2015 and Rule -Phase 2 Extension *MA - Monthly Average, WA — Weekly Average, DM — Daily Max. * * Variable monitoring frequency is defined as follows: samples collected three times per week during June 1 through September 30 and once per week October 1 through May 31. 13. Public Notice Schedule Permit to Public Notice: September 7, 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. If you have any questions regarding any of the above information or on the attached permit, please contact Diana Yitbarek at (919) 707-9130 or via email at diana.yitbarek@ncdenr.gov 14. Fact Sheet Addendum (if applicable) Were there any changes made since the Draft Permit was public noticed (Yes/No): Yes If Yes, list changes and their basis below: • The Facility components list on the Supplement to Permit Cover Sheet (Cover Sheet) were adjusted according to TRU's October 8, 2021, Comments Letter to Draft NPDES Permit. • Part I Section A. (8.) 1 Reporting Requirements of the NPDES permit has been updated to correct language and include the following: "The Permittee shall report discharge monitoring data electronically using the NC DWR's Electronic Discharge Monitoring Report (eDMR) internet application. Monitoring results obtained during the previous month(s) shall be summarized for each month and submitted monthly electronically using eDMR. The eDMR system allows permitted facilities to enter monitoring data and submit DMRs electronically using the internet. The eDMR system may be accessed at: https://deq.nc.gov/about/divisions/water-resources/edmr If a permittee is unable to use the eDMR system due to a demonstrated hardship or due to the facility being physically located in an area where less than 10 percent of the households have broadband access, Page 21 of 22 then a temporary waiver from the NPDES electronic reporting requirements may be granted, and discharge monitoring data may be submitted on paper DMR forms (MR 1, 1.1, 2, 3) or alternative" • The TP concentration limit was removed from Part I Section A. (1.). • The permit's expiration date was updated to January 31, 2027; therefore, the Special Condition A. (7.) was modified with the specific three years in which the Effluent Pollutant Scan shall be performed (2024, 2025, and 2026). 15. Fact Sheet Attachments (upon request): 1 RPA Sheets Summary for 16.0 MGD: input information, data analyzed, and results summary 2. BOD and TSS Removal Rate calculations 3. NH3/TRC/Fecal Waste Load Allocation (WLA) Spreadsheet for 16.0 MGD 4. Mercury TMDL Calculations for 16.0 MGD 5. Toxicity Summary/WET testing 6. Instream data summary and ttest 7. Pretreatment Summary 8. Monitoring Report Violations Summary 9. Renewal Application Addendums o Signed Effluent Pollutant Scans o Addendum Form 2A o Nutrients Agreement — Lowell Investments o Nutrients Agreement — Selkirk Realty (Former Pharr Yarns) 10. Correspondence 11. NPDES Implementation of Instream Dissolved Metals Standards — Freshwater Standards 12. 2020 NC 303(d) Draft List (one page) 13. Monitoring Reduction Evaluation 14. Public Water Supply Memo 15. Affidavit 16. Public Comments and Responses Page 22 of 22 Metal Translators /95% Confidence Usi 95% Probabilit a Freshwate MAXIMUM DATA POINTS = 58 REQUIRED DATA ENTRY Table 2. Parameters of Concern Project Information J 0 0- a) co et E CHECK IF HQW OR ORW WQS J O) 7 _1 O) 7 J O) 7 J O) 7 -I a) E _1 O 7 _1 O 7 J O 7 J O 1 J O 1 _1 O 7 J O 7 J O 7 J O 7 J a) C J O 7 J O 1 J O 1 J O 7 J O 7 J O 7 J O 1 J O 1 J_ O 1 0 N— LO 0 O M Q Z in O 3.7820 1046.5070 (0 Q Z 12.3757 N N 92.1368 389.4469 Q Z CO in 0.4021 146.0785 u _ 2 u > Q Q u u u u u u uu_ 5u_ 5 u u u 1 1 1 0 LO CO in CO O 0 300 132.1014 Z 8.8867 1,800 3.4456 8 N V 25.0000 in O O 142.7679 CO - d 0 0 0 Z 0 Z 0 Z 0 Z 0 Z 0 Z 0 Z 0 Z 0 Z 0 Z 0 Z 0 Z 0 Z 0 Z 0 Z 0 Z 0 Z 0 Z 0 Z U U U Aquactic Life Human Health Water Supply Aquatic Life Aquatic Life Water Supply Water Supply Aquatic Life Aquatic Life Aquatic Life Aquatic Life Aquatic Life Aquatic Life Aquatic Life Aquatic Life Aquatic Life Water Supply Aquatic Life Water Supply Aquatic Life Aquatic Life Aquatic Life Human Health Human Health Human Health U N Q Arsenic E 7 T N co Cadmium Chlorides Chlorinated Phenolic Compounds Total Phenolic Compounds E E O t 0 Chromium VI Chromium, Total Copper Cyanide a) 6 0 LT_ Lead Mercury Molybdenum Nickel Nickel E 7 N U) 7 C N Chloroform Chlorodibromomethane Dichlorobromomethane N M lfl co N. CO W 0 N M V W O N. CO W 0 N M O O O O O O O O N N NNN 0- Long Creek WWTP NC0020184 South Fork Catawba River 0 0 O 0 rim Facility Name WWTPIWTP Class NPDES Permit Flow, Qw (MGD) Receiving Stream HUC Number Stream Class E Apply WS Hardness WQC O 0 O O 0 0 0 0 N N 0 co V) w V.... co O O N V� O5 5 Si Er 55.53 mg/L (Avg) 22.69 mg/L (Avg) Effluent Hardness a co) a) co _ a) E 0 0 V) 0 0 co R 0 0 z W U W N 1- a W eL 17 zw z < 0 jo >a 2 > N Effluent Hard: 0 value > 100 mg/L CA M o 1- co M ti cr O G) G) 1- U) N 1- 00 7/1O M M U) 00 = 00 in O M t0 N CZ > N 00 M ~ 1 73 U0C)poaaU O 2 aaa@)u8 •= 00 . o 0 o U II U (/) "0 Z_ C O d U Q 0 Q 0 N 0 0 3 in p o M O O G U a - '\ui > 01 o! Z2 Q 0 as Ce as 1_ CD = CZ CZ L O LL O O O O O L S O N O O O O O 01 j d co0000n1O o i CO N N CO co Q 44 44 44 44 4v IA 00 t+ O O N bp O a d .5 8,aat- Oa og wu; m cu cA bf) a Effluent Hard Avg = 55.53 mg/L 3 RECOMMENDED ACTION No - Reasonable Potential (RP), Predicted Max < 50 of Allowable Concentration (Cw) - No Monitoring required, other than pollutant scan (PS) Al- l values in limited dataset reported non -detect < 1 ug/L. Predicted Max < 50% of Allowable Cw - No Monitoring required, other than PS. No - RP, Predicted Max < 50% of Allowable Cw - No Monitoring required, other than PS. 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 See Chromium, Total See Chromium, Total a: No monitoring required other than PS if all Total Chromium samples are < 5 pg/L or Pred. max for Total Cr is < allowable Cw for Cr Vl. I I I I I I I I I I I I I I REASONABLE POTENTIAL RESULTS ri # Det. Max Pred Cw Allowable Cw Acute (FW): 1,559.1 Chronic (FW): 809.3 No value? AllowableCw_ Chronic (HH): 273.3 No value > Allowable Cw Acute: 298.06 - Chronic: 35.07 Max MDL = 1 Acute: 17.342 Chronic: 3.540 Max MDL = 1 Acute: NO WQS Chronic: 12.0 Acute: NO WQS - Chronic: 3,590.3 No value > Allowable Cw Acute: 4,798.7 Chronic: 712.7 Acute: 73.4 Chronic: 59.3 0lowable Cw Max reported value = 9 LAcute: _—_—_56.75 r 1.50 C.V. (default) NO DETECTS 0.550 NO DETECTS z z z 0 H in Al oc M V O rn 3 0 Note: n < 9 Limited data set 0 O Cr) 0 001 M 0 0 0 O Tot Cr value 30 23 30 25 sewn t t t t t t t t 1bd NC STANDARDS OR EPA CRITERIA Applied Chronic Acute Standard 150 FW(7Q10s) 340 10 HH/WS(Qavg) 6.5 FW(7Q10s) 65 0.6561 FW(7Q10s) 3.7820 N O r N O cn © © cn 132.1014 FW(7Q10s) 1046.5070 11 FW(7Q10s) 16 8.8867 FW(7Q10s) 12.3757 Y 0 0 0 z Z z z z 0 z PARAMETER Arsenic Arsenic E m Cadmium Chlorinated Phenolic Compounds Total Phenolic Compounds Chromium III Chromium VI Chromium, Total Copper m M a No RP Predicted Max < 50 % of Allowable Cw Monitoring required, other than PS. Predicted Max > 50% of Allowable Cw. 1 value > Allowable Cw. Apply Quarterly Monitoring No RP All values reported non -detect < 1 ug/L Predicted Max < 50% of Allowable Cw - No Monitoring required, other than PS No - RP. Predicted Max < 50% of Allowable Cw - See 2012 TMDL eval. In Fact sheet No RP. Predicted Max < 50% of Allowable Cw - No Monitoring required, other than PS No RP. Predicted Max < 50% of Allowable Cw - No Monitoring required other than PS No RP. Predicted Max < 50% of Allowable Cw - No Monitoring required other than PS Pr- edicted Max > Allowable Cw. All values reported non -detect < 1 ug/L. Method with the lowest PQL must be used No RP. Predicted Max < 50% of Allowable Cw - No Monitoring required other than PS Limited dataset. Predicted Max < 50% of Allowable Cw. No value > Allowable concentration - No Monitoring required, other than PS. - -------------------------- aa,, 3 U ) 0 A o ,, 71 U 0 z Acute: 100.9 - Chronic: 27.0 1 value(s) > Allowable Cw Acute: 422.492 - Chronic: 18.590 Max MDL = 1 Acute: NO WQS Chronic: 64.7 No value > Allowable Cw Acute: NO WQS - Chronic: 863.2 No value > Allowable Cw Acute (FW): 1,785.8 Chronic (FW): 226.2 No value? Allowable Cw Chronic (WS): 134.9 No value > Allowable Cw Acute: 256.8 - Chronic: 27.0 No value > Allowable Cw Acute: 1.844 Chronic: 0.324 Max MDL = 1 Acute: 669.8 - Chronic: 770.3 No value > Allowable Cw Acute: NO WQS Chronic: 1639.839 No value > Allowable Cw Acute: NO WQS N v-i 0.500 NO DETECTS N N VD O 7 p0 0.500 NO DETECTS cc 42.80000 C.V. (default) 27.30000 M M O OM co N N N ,..0 � O Ocn O O 6 6 Note: n < 9 Limited data set N M t t too t 0 t t t a o?� O - v? O 5 FW(7Q10s) 22 3.4456 FW(7Q10s) 92.1368 O a w cv 160 WS(7Q10s) 41.9342 FW(7Q10s) 389.4469 25.0000 WS(7Q10s) 5 FW(7Q10s) 56 0.06 FW(7Q10s) 0.4021 142.7679 FW(7Q10s) 146.0785 60 HH(Qavg) 0.8 HH(Qavg) 0 0 0 2 2 0 2 0 2 U U Cyanide v —IZ Mercury Molybdenum Z E a y N fA N Chloroform Chlorodibromomethane Note: n < 9 C.V. (default) Chronic: 21.86452 Predicted Max > Allowable Cw. No value > Allowable concentration. Limited dataset - Apply quarterly Limited data set No value > Allowable Cw monitoring Predicted Max > Allowable Cw. No value > Allowable concentration. Limited dataset - Apply quarterly monitoring Limited dataset. Predicted Max < 50% of Allowable Cw. No value > Allowable concentration - No Monitoring required, other than PS. Acute: NO WQS - Chronic: 25.96411 No value > Allowable Cw Acute: NO WQS - Chronic: 191.31452 No value > Allowable Cw 36.00000 C.V. (default) 21.90000 C.V. (default) 3 2 Note: n < 9 Limited data set 3 2 Note: n < 9 Limited data set W t Z II I I 0.95 HH(Qavg) 7 HH(Qavg) U U Dichlorobromomethane Bromoform co O l() co a REASONABLE POTENTIAL ANALYSIS H1 Effluent Hardness Date Data BDL=1/2DL Results 1 4/7/2017 74 74 Std Dev. 2 6/6/2017 48 48 Mean 3 7/7/2017 57 57 C.V. 4 10/6/2017 48 48 n 5 1/5/2018 36 36 10th Per value 6 4/6/2018 51 51 Average Value 7 7/6/2018 76 76 Max. Value 8 9/14/2018 39 39 9 10/5/2018 55 55 10 1/4/2019 55 55 11 3/7/2019 64 64 12 4/5/2019 82 82 13 7/5/2019 52 52 14 10/9/2019 58 58 15 1/3/2020 56 56 16 4/3/2020 56 56 17 7/10/2020 46 46 18 10/2/2020 52 52 19 1/15/2021 50 50 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 H2 Upstream Hardness 11.7302 55.5263 0.2113 19 44.60 mg/L 55.53 mg/L 82.00 mg/L Date Data BDL=1/2DL Results 1 4/5/2017 20 20 Std Dev. 2 7/7/2017 30 30 Mean 3 10/9/2017 28 28 C.V. 4 1/2/2018 22 22 n 5 4/6/2018 22 22 10th Per value 6 7/6/2018 24 24 Average Value 7 10/5/2018 23 23 Max. Value 8 1/4/2019 18 18 9 4/5/2019 28 28 10 7/5/2019 20 20 11 10/9/2019 32 32 12 1/3/2020 20 20 13 4/3/2020 20 20 14 7/10/2020 18 18 15 10/2/2020 20 20 16 1/15/2021 18 18 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 4.4828 22.6875 0.1976 16 18.00 mg/L 22.69 mg/L 32.00 mg/L -6- 20184 RPA 16.0.xlsm, data 4/19/2021 REASONABLE POTENTIAL ANALYSIS Par01 & Par02 Arsenic Date Mc Value BDL=1/2DL Results 1 1/6/2017 < 1 0.5 Std Dev. 2 3/3/2017 < 2 1 Mean 3 4/7/2017 < 2 1 C.V. 4 6/6/2017 2.6 2.6 n 5 7/7/2017 < 2 1 6 10/6/2017 < 2 1 Mult Factor = 7 1/5/2018 < 2 1 Max. Value 8 4/6/2018 < 2 1 Max. Pred Cw 9 7/6/2018 < 1 0.5 10 9/14/2018 < 1 0.5 11 10/5/2018 < 1 0.5 12 1/4/2019 < 1 0.5 13 3/7/2019 < 1 0.5 14 4/5/2019 < 1 0.5 15 7/5/2019 1 1 16 9/6/2019 1.2 1.2 17 10/4/2019 < 1 0.5 18 11/1/2019 < 1 0.5 19 11/15/2019 < 1 0.5 20 12/6/2019 < 1 0.5 21 1/3/2020 < 1 0.5 22 2/21/2020 < 1 0.5 23 3/6/2020 < 1 0.5 24 4/3/2020 1.1 1.1 25 4/17/2020 < 1 0.5 26 5/8/2020 < 1 0.5 27 6/5/2020 < 1 0.5 28 7/10/2020 < 1 0.5 29 10/2/2020 < 1 0.5 30 1/15/2021 < 2 1 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 0.4329 0.7467 0.5798 30 1.20 2.6 ug/L 3.1 ug/L -7- 20184 RPA 16.0.xlsm, data 4/19/2021 REASONABLE POTENTIAL ANALYSIS Par03 Beryllium Date 1 6/6/2017 2 9/14/2018 3 3/7/2019 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 Mc Value 1 1 1 BDL=1/2DL Results 0.5 Std Dev. 0.5 Mean 0.5 C.V. (default) n Mult Factor = Max. Value Max. Pred Cw Use "PASTE SPECIAL. Values" then "COPY" . Maximum 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 1/6/2017 < 0.1 0.05 Std Dev. 2 3/3/2017 < 0.5 0.25 Mean 3 4/7/2017 < 0.5 0.25 C.V. 4 6/6/2017 < 1 0.5 n 5 7/7/2017 < 1 0.5 6 10/6/2017 < 0.5 0.25 Mult Factor = 7 1/5/2018 < 0.5 0.25 Max. Value 8 4/6/2018 < 0.5 0.25 Max. Pred Cw 9 7/6/2018 < 0.5 0.25 10 9/14/2018 < 0.5 0.25 11 10/5/2018 < 0.5 0.25 12 1/4/2019 < 0.5 0.25 13 3/7/2019 < 0.5 0.25 14 4/5/2019 < 0.5 0.25 15 7/5/2019 < 0.5 0.25 16 9/6/2019 < 0.5 0.25 17 10/4/2019 < 0.5 0.25 18 11/1/2019 < 0.5 0.25 19 11/15/2019 < 0.5 0.25 20 12/6/2019 < 0.5 0.25 21 1/3/2020 < 0.5 0.25 22 2/21/2020 < 0.5 0.25 23 3/6/2020 < 0.5 0.25 24 4/3/2020 < 0.5 0.25 25 4/17/2020 < 0.5 0.25 26 5/8/2020 < 0.5 0.25 27 6/5/2020 < 0.5 0.25 28 7/10/2020 < 0.5 0.25 29 10/2/2020 < 0.5 0.25 30 1 /1 E/7071 < 0.5 0.25 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 0.0747 0.2600 0.2875 30 1.10 0.500 ug/L 0.550 ug/L -8- 20184 RPA 16.0.xlsm, data 4/19/2021 REASONABLE POTENTIAL ANALYSIS Par05 Chlorides Date Data BDL=1/2DL Results Std Dev. Mean C.V. n Mult Factor = Max. Value Max. Pred Cw Use "PASTE SPECIAL - Values" then "COPY" . Maxim um data points = 58 NO DATA NO DATA NO DATA 0 N/A N/A mg/L N/A mg/L Par06 Use "PASTE SF Values" then "( . Maximum c points = 5 Date Mc Value BDL=1/2DL Results 1 Std Dev. NO DATA 2 Mean NO DATA 3 C.V. NO DATA 4 n 0 5 6 Mult Factor = N/A 7 Max. Value N/A 8 Max. Pred Cw N/A 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 Chlorinated Phenolic Compounds -9- 20184 RPA 16.0.xlsm, data 4/19/2021 REASONABLE POTENTIAL ANALYSIS 'ECIAL. COPY" iota i8 Par07 Total Phenolic Compounds ug/L ug/L Date Mc Value BDL=1/2DL Results 1 6/22/2017 0.005 ERR Std Dev. 2 6/30/2017 0.005 ERR Mean 3 9/14/2018 < 0.005 ERR C.V. 4 4/18/2019 < 0.005 ERR n 5 5/10/2019 < 0.005 ERR 6 6/21/2019 < 0.005 ERR Mult Factor = 7 7/12/2019 < 0.005 ERR Max. Value 8 8/9/2019 < 0.005 ERR Max. Pred Cw 9 9/6/2019 < 0.005 ERR 10 10/4/2019 < 0.005 ERR 11 11/1/2019 < 0.005 ERR 12 12/6/2019 < 0.005 ERR 13 1/3/2020 < 0.005 ERR 14 2/21/2020 < 0.005 ERR 15 3/6/2020 < 0.005 ERR 16 4/3/2020 < 0.005 ERR 17 5/8/2020 < 0.005 ERR 18 6/5/2020 < 0.005 ERR 19 7/10/2020 < 0.005 ERR 20 10/2/2020 < 0.005 ERR 21 1/15/2021 < 0.005 ERR 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 NO DATA NO DATA NO DATA 0 N/A N/A ug/L N/A ug/L Par08 Use "PASTE SF Values" then "( . Maximum c points = 5 Date Data BDL=1/2DL Results 1 Std Dev. NO DATA 2 Mean NO DATA 3 C.V. NO DATA 4 n 0 5 6 Mult Factor = N/A 7 Max. Value N/A 8 Max. Pred Cw N/A 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 Chromium III -10- 20184 RPA 16.0.xlsm, data 4/19/2021 REASONABLE POTENTIAL ANALYSIS 'ECIAL. COPY" iota i8 pg/L pg/L Par09 Chromium VI Date Data BDL=1/2DL Results 1 Std Dev. 2 Mean 3 C.V. 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 Par10 Chromium, Total NO DATA NO DATA NO DATA 0 N/A N/A pg/L N/A pg/L Use "PASTE SF Values" then "( . Maximum c points = 5 Date Mc Value BDL=1/2DL Results 1 1/6/2017 < 5 2.5 Std Dev. 1.8711 2 3/3/2017 < 5 2.5 Mean 2.9133 3 4/7/2017 5.7 5.7 C.V. 0.6423 4 6/6/2017 3.3 3.3 n 30 5 7/7/2017 1.3 1.3 6 10/6/2017 < 5 2.5 Mult Factor = 1.22 7 1/5/2018 < 5 2.5 Max. Value 9.0 8 4/6/2018 < 5 2.5 Max. Pred Cw 11.0 9 7/6/2018 < 1 0.5 10 9/14/2018 2.2 2.2 11 10/5/2018 2.6 2.6 12 1/4/2019 1.4 1.4 13 3/7/2019 2.6 2.6 14 4/5/2019 2.2 2.2 15 7/5/2019 2.1 2.1 16 9/6/2019 2.4 2.4 17 10/4/2019 1.4 1.4 18 11/1/2019 1.2 1.2 19 11/15/2019 5.5 5.5 20 12/6/2019 7.1 7.1 21 1/3/2020 2.6 2.6 22 2/21/2020 2.4 2.4 23 3/6/2020 9 9 24 4/3/2020 2.6 2.6 25 4/17/2020 5.4 5.4 26 5/8/2020 4.1 4.1 27 6/5/2020 1.6 1.6 28 7/10/2020 1.7 1.7 29 10/2/2020 1.5 1.5 30 1/15/2021 < 5 2.5 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 -11- 20184 RPA 16.0.xlsm, data 4/19/2021 REASONABLE POTENTIAL ANALYSIS 'ECIAL. COPY" iota i8 Pall Copper pg/L pg/L Date Mc Value BDL=1/2DL Results 1 1/6/2017 2.8 2.8 Std Dev. 2 3/3/2017 < 5 2.5 Mean 3 4/7/2017 < 5 2.5 C.V. 4 6/6/2017 3.2 3.2 n 5 7/7/2017 2 2 6 10/6/2017 < 5 2.5 Mult Factor = 7 1/5/2018 < 5 2.5 Max. Value 8 4/6/2018 < 5 2.5 Max. Pred Cw 9 7/6/2018 1.6 1.6 10 9/14/2018 2.3 2.3 11 10/5/2018 1.6 1.6 12 1/4/2019 2 2 13 3/7/2019 2.5 2.5 14 4/5/2019 3.5 3.5 15 7/5/2019 2 2 16 9/6/2019 1.9 1.9 17 10/4/2019 1.8 1.8 18 11/1/2019 2.4 2.4 19 11/15/2019 1.8 1.8 20 12/6/2019 2 2 21 1/3/2020 2 2 22 2/21/2020 1.6 1.6 23 3/6/2020 2.8 2.8 24 4/3/2020 2.2 2.2 25 4/17/2020 2.2 2.2 26 5/8/2020 3.6 3.6 27 6/5/2020 2.8 2.8 28 7/10/2020 2.6 2.6 29 10/2/2020 2.4 2.4 30 1/15/2021 2.5 2.5 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 Par12 Cyanide 0.5117 2.3533 0.2175 30 1.07 3.60 ug/L 3.85 ug/L Use "PASTE SF Values" then "( . Maximum c points = 5 Date Mc Value BDL=1/2DL Results 1 1/6/2017 < 10 5 Std Dev. 7.0058 2 4/7/2017 < 10 5 Mean 6.63 3 6/6/2017 < 10 5 C.V. 1.0575 4 7/7/2017 < 10 5 n 32 5 10/6/2017 < 10 5 6 1/5/2018 < 10 5 Mult Factor = 1.30 7 4/6/2018 11 11 Max. Value 44.0 8 7/6/2018 < 10 5 Max. Pred Cw 57.2 9 9/14/2018 12 12 10 10/5/2018 < 10 5 11 1/4/2019 < 10 5 12 3/7/2019 < 10 5 13 4/5/2019 44 44 14 4/26/2019 < 10 5 15 5/1/2019 < 10 5 16 5/8/2019 < 10 5 17 7/5/2019 < 10 5 18 9/6/2019 < 10 5 19 10/4/2019 < 10 5 20 11/1/2019 < 10 5 21 11/15/2019 < 10 5 22 12/6/2019 < 10 5 23 1/3/2020 < 10 5 24 2/21/2020 < 10 5 25 3/6/2020 < 10 5 26 4/3/2020 < 10 5 27 4/22/2020 < 10 5 28 5/8/2020 < 10 5 29 6/5/2020 < 10 5 30 7/10/2020 < 10 5 31 10/2/2020 < 10 5 32 1/15/2021 < 10 5 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 -12- 20184 RPA 16.0.xlsm, data 4/19/2021 REASONABLE POTENTIAL ANALYSIS 'ECIAL. COPY" iota i8 Par14 Lead ug/L ug/L Date Mc Value BDL=1/2DL Results 1 1/6/2017 < 1 0.5 Std Dev. 2 3/3/2017 < 1 0.5 Mean 3 4/7/2017 < 1 0.5 C.V. 4 6/6/2017 < 1 0.5 n 5 7/7/2017 < 1 0.5 6 10/6/2017 < 1 0.5 Mult Factor = 7 1/5/2018 < 1 0.5 Max. Value 8 4/6/2018 < 1 0.5 Max. Pred Cw 9 7/6/2018 < 1 0.5 10 9/14/2018 < 1 0.5 11 10/5/2018 < 1 0.5 12 1/4/2019 < 1 0.5 13 3/7/2019 < 1 0.5 14 4/5/2019 < 1 0.5 15 7/5/2019 < 1 0.5 16 9/6/2019 < 1 0.5 17 10/4/2019 < 1 0.5 18 11/1/2019 < 1 0.5 19 11/15/2019 < 1 0.5 20 12/6/2019 < 1 0.5 21 1/3/2020 < 1 0.5 22 2/21/2020 < 1 0.5 23 3/6/2020 < 1 0.5 24 4/3/2020 < 1 0.5 25 4/17/2020 < 1 0.5 26 5/8/2020 < 1 0.5 27 6/5/2020 < 1 0.5 28 7/10/2020 < 1 0.5 29 10/2/2020 < 1 0.5 30 1/15/2021 < 1 0.5 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 Par15 Mercu ry 0.0000 0.5000 0.0000 30 1.00 0.500 ug/L 0.500 ug/L Use "PASTE SF Values" then "( . Maximum c points = 5 Date Data BDL=1/2DL Results 1 1/27/2017 1.34 1.34 Std Dev. 0.3964 2 4/13/2017 1.33 1.33 Mean 0.6974 3 6/6/2017 < 1 0.5 C.V. 0.5684 4 7/14/2017 < 1 1.66 n 27 5 10/27/2017 < 1 0.5 6 1/26/2018 1.66 0.5 Mult Factor = 1.23 7 6/15/2018 < 1 0.5 Max. Value 1.8 8 9/14/2018 < 1 1.79 Max. Pred Cw 2.2 9 10/19/2018 < 1 0.5 10 3/7/2019 1.79 0.5 11 4/24/2019 < 1 0.5 12 9/26/2019 < 1 0.5 13 10/4/2019 < 1 0.5 14 11/1/2019 1.08 1.08 15 11/20/2019 < 1 0.5 16 12/20/2019 < 1 0.5 17 1/22/2020 < 1 0.5 18 2/21/2020 < 1 0.5 19 2/27/2020 < 1 0.5 20 3/13/2020 < 1 0.5 21 4/3/2020 1.13 1.13 22 4/24/2020 < 1 0.5 23 5/8/2020 < 1 0.5 24 6/5/2020 < 1 0.5 25 7/9/2020 < 1 0.5 26 10/2/2020 < 1 0.5 27 1/14/2021 < 1 0.5 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 -13- 20184 RPA 16.0.xlsm, data 4/19/2021 REASONABLE POTENTIAL ANALYSIS 'ECIAL. COPY" iota i8 ng/L ng/L Par16 Molybdenum Date Mc Value BDL=1/2DL Results 1 1/6/2017 < 10 5 Std Dev. 2 3/3/2017 < 10 5 Mean 3 4/7/2017 < 10 5 C.V. 4 7/7/2017 11.7 11.7 n 5 10/6/2017 < 10 5 6 1/5/2018 < 10 5 Mult Factor = 7 4/6/2018 34 34 Max. Value 8 7/6/2018 27.7 27.7 Max. Pred Cw 9 9/14/2018 24.2 24.2 10 10/5/2018 24.1 24.1 11 1/4/2019 3.9 3.9 12 3/7/2019 3.2 3.2 13 4/5/2019 4.2 4.2 14 7/5/2019 10 10 15 9/6/2019 4.4 4.4 16 10/4/2019 4.4 4.4 17 11/1/2019 4.6 4.6 18 11/15/2019 2.5 2.5 19 12/6/2019 2.1 2.1 20 1/3/2020 < 1 0.5 21 2/21/2020 2 2 22 3/6/2020 4.4 4.4 23 4/3/2020 3 3 24 4/17/2020 3 3 25 5/8/2020 3.2 3.2 26 6/5/2020 6.7 6.7 27 7/10/2020 7.9 7.9 28 10/2/2020 2.8 2.8 29 1/15/2021 < 10 5 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 Par17 & Par18 Nickel 8.4922 7.7414 1.0970 29 1.37 34.0 ug/L 46.6 ug/L Date Mc Value BDL=1/2DL Results 1 5/6/2016 9.4 9.4 Std Dev. 2 5/13/2016 18.6 18.6 Mean 3 5/20/2016 11.2 11.2 C.V. 4 5/27/2016 9.9 9.9 n 5 6/3/2016 < 5 2.5 6 6/10/2016 < 5 2.5 Mult Factor = 7 6/17/2016 3.6 3.6 Max. Value 8 6/24/2016 3 3 Max. Pred Cw 9 7/1/2016 < 5 2.5 10 7/8/2016 < 5 2.5 11 7/15/2016 < 5 2.5 12 7/22/2016 < 5 2.5 13 7/29/2016 < 5 2.5 14 8/5/2016 2.2 2.2 15 8/12/2016 2.6 2.6 16 8/19/2016 2.2 2.2 17 8/26/2016 2.2 2.2 18 9/2/2016 2.6 2.6 19 9/9/2016 2.7 2.7 20 9/16/2016 2.4 2.4 21 9/23/2016 2.2 2.2 22 9/30/2016 2 2 23 10/7/2016 < 5 2.5 24 10/14/2016 2.5 2.5 25 10/21/2016 2 2 26 10/28/2016 2.4 2.4 27 11/4/2016 < 5 2.5 28 11/11/2016 < 5 2.5 29 11/18/2016 42 42 30 11/23/2016 21 21 31 12/2/2016 < 5 2.5 32 12/9/2016 5 5 33 12/16/2016 < 5 2.5 34 12/22/2016 < 5 2.5 35 12/30/2016 < 5 2.5 36 1/6/2017 < 5 2.5 37 1/13/2017 2 2 38 1/20/2017 3.6 3.6 39 1/27/2017 2.4 2.4 40 2/3/2017 2.6 2.6 41 2/10/2017 2.6 2.6 42 2/17/2017 2 2 43 2/24/2017 2.4 2.4 44 3/3/2017 < 5 2.5 45 3/10/2017 < 5 2.5 46 3/17/2017 < 5 2.5 47 3/24/2017 < 5 2.5 48 3/31/2017 3.2 3.2 49 4/7/2017 < 5 2.5 50 6/6/2017 5.8 5.8 51 7/7/2017 25.8 25.8 52 10/6/2017 7.1 7.1 53 1/5/2018 < 5 2.5 54 4/6/2018 < 5 2.5 55 7/6/2018 1.4 1.4 56 9/14/2018 1.6 1.6 57 10/5/2018 1.4 1.4 58 1/4/2019 1.3 1.3 -14- 20184 RPA 16.0.xlsm, data 4/19/2021 REASONABLE POTENTIAL ANALYSIS Use"PASTE SPECIAL -Values then "COPY" . Maximum data points = 58 Par19 Selenium 6.8218 4.6879 1.4552 58 1.00 42.0 pg/L 42.0 pg/L Date Mc Value BDL=1/2DL Results 1 1/6/2017 < 1 0.5 Std Dev. 2 3/3/2017 < 5 2.5 Mean 3 4/7/2017 < 5 2.5 C.V. 4 6/6/2017 < 1 0.5 n 5 7/7/2017 < 5 2.5 6 10/6/2017 < 5 2.5 Mult Factor = 7 1/5/2018 < 5 2.5 Max. Value 8 4/6/2018 < 5 2.5 Max. Pred Cw 9 7/6/2018 1 1 10 9/14/2018 1.4 1.4 11 10/5/2018 1.2 1.2 12 1/4/2019 < 1 0.5 13 3/7/2019 < 1 0.5 14 4/5/2019 1.5 1.5 15 7/5/2019 3.5 3.5 16 9/6/2019 4.1 4.1 17 10/4/2019 1.6 1.6 18 11/1/2019 1.8 1.8 19 11/15/2019 1.3 1.3 20 12/6/2019 < 1 0.5 21 1/3/2020 2 2 22 2/21/2020 2.8 2.8 23 3/6/2020 2.2 2.2 24 4/3/2020 1.5 1.5 25 4/17/2020 2.4 2.4 26 5/8/2020 1.4 1.4 27 6/5/2020 1.6 1.6 28 7/10/2020 1.4 1.4 29 10/2/2020 1.1 1.1 30 1/15/2021 < 5 2.5 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 Par20 Silver 0.9116 1.7933 0.5083 30 1.17 4.1 ug/L 4.8 ug/L Date Mc Value BDL=1/2DL Results 1 1/6/2017 < 1 0.5 Std Dev. 2 3/3/2017 < 1 0.5 Mean 3 4/7/2017 < 1 0.5 C.V. 4 6/6/2017 < 1 0.5 n 5 7/7/2017 < 1 0.5 6 10/6/2017 < 1 0.5 Mult Factor = 7 1/5/2018 < 1 0.5 Max. Value 8 4/6/2018 < 1 0.5 Max. Pred Cw 9 7/6/2018 < 1 0.5 10 9/14/2018 < 1 0.5 11 10/5/2018 < 1 0.5 12 1/4/2019 < 1 0.5 13 3/7/2019 < 1 0.5 14 4/5/2019 < 1 0.5 15 7/5/2019 < 1 0.5 16 9/6/2019 < 1 0.5 17 10/4/2019 < 1 0.5 18 11/1/2019 < 1 0.5 19 11/15/2019 < 1 0.5 20 12/6/2019 < 1 0.5 21 1/3/2020 < 1 0.5 22 2/21/2020 < 1 0.5 23 3/6/2020 < 1 0.5 24 4/3/2020 < 1 0.5 25 4/17/2020 < 1 0.5 26 5/8/2020 < 1 0.5 27 6/5/2020 < 1 0.5 28 7/10/2020 < 1 0.5 29 10/2/2020 < 1 0.5 30 1/15/2021 < 1 0.5 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 -15- 20184 RPA 16.0.xlsm, data 4/19/2021 REASONABLE POTENTIAL ANALYSIS Use "PASTE SPECIAL - Values" then "COPY" . Maxim um data points = 58 Par21 Zinc 0.0000 0.5000 0.0000 30 1.00 0.500 ug/L 0.500 ug/L Date Mc Value BDL=1/2DL Results 1 1/6/2017 87 87 Std Dev. 2 3/3/2017 51 51 Mean 3 4/7/2017 50 50 C.V. 4 6/6/2017 35 35 n 5 7/7/2017 33 33 6 10/6/2017 45 45 Mult Factor = 7 1/5/2018 69 69 Max. Value 8 4/6/2018 59 59 Max. Pred Cw 9 7/6/2018 42 42 10 9/14/2018 43 43 11 10/5/2018 41 41 12 1/4/2019 38 38 13 3/7/2019 44 44 14 4/5/2019 33 33 15 7/5/2019 47 47 16 9/6/2019 46 46 17 10/4/2019 49 49 18 11/1/2019 45 45 19 11/15/2019 45 45 20 12/6/2019 46 46 21 1/3/2020 39 39 22 2/21/2020 48 48 23 3/6/2020 68 68 24 4/3/2020 52 52 25 4/17/2020 46 46 26 5/8/2020 49 49 27 6/5/2020 38 38 28 7/10/2020 32 32 29 10/2/2020 37 37 30 1/15/2021 67 67 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 Par22 Chloroform 12.1903 47.4667 0.2568 30 1.09 87.0 ug/L 94.8 ug/L Date Mc Value BDL=1/2DL 1 7/1/2016 2 2 2 10/7/2016 2.8 2.8 3 1/6/2017 4.5 4.5 4 4/7/2017 7.8 7.8 5 6/6/2017 20 20 6 7/7/2017 3.4 3.4 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 -16- 20184 RPA 16.0.xlsm, data 4/19/2021 REASONABLE POTENTIAL ANALYSIS Results Std Dev. Mean C.V. (default) n Mult Factor = Max. Value Max. Pred Cw Use "PASTE SPECIAL - Values" then "COPY" . Maxim um data points - 58 Par23 Chlorodibromomethane 6.7987 6.7500 0.6000 6 2.14 20.000000 pg/L 42.800000 pg/L Use "PASTE SPECIAL -Values" then "COPY" . Maxim um data points = 58 Date Data BDL=1/2DL Results 1 6/6/2017 6.4 6.4 Std Dev. 4.3981 2 9/14/2018 9.1 9.1 Mean 5.3333 3 3/7/2019 < 1 0.5 C.V. (default) 0.6000 4 n 3 5 6 Mult Factor = 3.00 7 Max. Value 9.100000 pg/L 8 Max. Pred Cw 27.300000 pg/L 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 Par24 Date Da 1 6/6/2017 2 9/14/2018 3 3/7/2019 < 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 -17- 20184 RPA 16.0.xlsm, data 4/19/2021 REASONABLE POTENTIAL ANALYSIS Dichlorobromomethane to BDL=1/2DL Results 12 Std Dev. 5.9 Mean 0.5 C.V. (default) n Mult Factor = Max. Value Max. Pred Cw 12 5.9 1 Use "PASTE SPECIAL - Values.' then "COPY" . Maximum data points - 58 Par25 Bromoform 5.7535 6.1333 0.6000 3 3.00 12.000000 pg/L 36.000000 pg/L Use "PASTE SPECIAL. Values" then "COPY" . Maxim um data points = 58 1 3.7647 2 2.9667 3 0.6000 4 3 5 6 Mult Factor = 3.00 7 Max. Value 7.300000 pg/L 8 Max. Pred Cw 21.900000 pg/L 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 Date Data 6/6/2017 9/14/2018 3/7/2019 < BDL=1/2DL 1.1 1.1 7.3 7.3 1 0.5 Results Std Dev. Mean C.V. (default) n -18- 20184 RPA 16.0.xlsm, data 4/19/2021 Long Creek WWTP NCOO2O184 CC k k m=» e» m t» e e» m e m e t t## m o t o e= t m f m@@ e w@@@ m m e@ o m f m f@ e e e e L@- »»_»__= 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 e e e e e e e e e e e e e e e e e November-18 December-18 61 01 % % % % a a \ 2 y •'_ / § E �/2 -, ®/ m October-19 November-19 December-19 January-20 February-20 0 \ \ \ \ y = \ 6 m / ®2 -2 \ 0 / E / m October-20 November-20 December-20 January-21 February-21 t m e o e» e e t= e» e###= m# e m» m e e m m t= o t# m e o t m e o f e o t# m## m e m t m m e e### o# a a a a a a a« a= a a a a a a a a a a a a a« a a a a a a e eeeeeeeeeeeeeeeeeeeeeeeeeeee e m October-16 November-16 December-16 January-17 February-17 \ \ \ f / ••E / § b E / ®2 \ k e m October-17 November-17 December-17 January-18 February-18 00 % _ _ _ _ \ % e e e ICE » / § / / / < > 2 Q \ o ® e \ m Overall TSS removal rate k k CO m Cr) m e e e o= t e e m m o o e o e o m=»» t e m» @ g 0@ g @ m@ g g g 0 m@ e f w e w w g e@ w@ e m 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 e e e e November-18 December-18 01 % % % % \ 2 / / § > \ E / ƒ / ®2 -, -, < 0_ e m October-19 November-19 December-19 January-20 February-20 \0 \\\\ N//\ E § / ®2 -, k e m October-20 November-20 December-20 January-21 February-21 \ \ > q 0_ e= e= m m# o t o m m t» e e e e o m e e= o t# e e o» f w g o N o 0 w m g 0 m 0 g m 0@ o@ g g e@ w@@ w g@ _ _ _ _ = e e = _ = e = _ = e e = e e = _ _ » _ _ = e = _ _ e eeeeeeeeeeeeeeeeeeeeeeeeeeee m October-16 November-16 December-16 January-17 February-17 1 \\ N ,__I 2 \ \± a SE/ E § / ®2 9 \ k e m October-17 November-17 December-17 January-18 February-18 % _ _ _ _ % 00 2 / ® � % y •'_ / § \ E a / ® 2 \ k / e m Overall BOD removal rate NH3/TRC WLA Calculations Facility: City of Gastonia/Long Creek Wastewater Treatment Plant (WWTP) PermitNo. NC0020184 Prepared By: Diana Yitbarek Enter Design Flow (MGD): Enter s7Q10 (cfs): Enter w7Q10 (cfs): 16 109 200 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) Maintain limit at 28 ug/I Fecal Coliform Monthly Average Limit: (If DF >331; Monitor) (If DF<331; Limit) Dilution Factor (DF) Maintain 200/100 ml MA limit Ammonia (Summer) Monthly Average Limit (mg NH3-N/I) 109 s7Q10(CFS) 16 DESIGN FLOW (MGD) 24.8 DESIGN FLOW (CFS) 17.0 STREAM STD (MG/L) 0 Upstream Bkgd (mg/I) 18.54 IWC (%) 92 Allowable Conc. (mg/I) Current MA limit: 2.0 mg/I There were no MA ammonia exceedances in summer Daily Max (summer): 5.0 mg/I 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) 5.40 Upstream Bkgd (mg/I) IWC (%) Allowable Conc. (mg/I) Current MA limit: 4.0 mg/I There were no MA ammonia exceedances in winter Daily Max (winter): 8.1 mg/I Maintain limit Total Residual Chlorine 1. Cap Daily Max limit at 28 ug/I to protect for acute toxicity Ammonia (as NH3-N) 1. If Allowable Conc > 35 mg/I, Monitor Only 2. Monthly Avg limit x 3 = Weekly Avg limit (Municipals) 3. Monthly Avg limit x 5 = Daily Max limit (Non-Munis) If the allowable ammonia concentration is > 35 mg/L, no limit shall be imposed 109 16 24.8 1.0 0.22 18.54 4.4 200 16 24.8 1.8 0.22 11.03 14.5 Fecal Coliform 1. Monthly Avg limit x 2 = 400/100 ml = Weekly Avg limit (Municipals) = Daily Max limit (Non -Muni) Summer: April 1 - Oct 30 Winter: Nov. 1 - March 31 M O • U • co Acji co co (21 a) O O O N 0 N 0 N 0 % -1 N 00 O 00 O lD -1 N -1 O N 00 0 dr m ri N dr N # of Samples J OA a) 00 f0 a) To J OA J W CO H J OA J w CO Whole Effluent Toxicity Testing and Self Monitoring Summary Z Z ✓ V O O I I O 0 Jan Apr Jul Oct O } ro O O cc O o Cf 0 0 a) cc NC0084786/001 Furniture Illustrators, Inc. NonComp: Single chr lim: 90% 2 2 2 2 2 2 2 00 01 o 0 0 0 0 0 LL Q ro 2 2 2 2 V O VI 0 Mar Jun Sep Dec V V VD m - m V V O C C � ro • LL m LL LL LL O O ti O d' N d' C C o o a) a) cc cc County: Gaston Acu Monit: 90% © O VD 2 2 2 2 2 2 2 00 01 o 0 0 0 0 NC0074268/001 Gastonia-Crowders Creek 7010: 13.3 chr lim: 41% a) V VI 0 0 0 0 LL d d d cc� � d d d C d Q 1 d o o o oo m o 0 0 0 0 0 VD m V ro C N. c 1 d o o o 0 0 a a, cc NC0020184/001 Gastonia -Long Cr. WWTP chr lim: 19% 0 O O N m a) V n ' m o 0 0 0 0 0 V O VI 0 Jan Apr Jul Oct Z O K c1 Cf 0 0 a a, cc NC0072702/001 Glenda Drive WTP- Town of Beaufort Ac P/F Monit: 90% M LL ra c} C Oa 0 m 2 2 m Page 46 of 117 Legend: P= Fathead minnow (Pimphales promelas), H=No Flow (facility is active), s = Split test between Certified Labs Con % Eff. Repl. 1 Control Surviving # f 9 Original # Wt/original (mg) 4.75 Surviving # Original # Wt./original (mg) 9.5 Surviving # Original # Wt/original (mg) 19 Surviving # Original # Wtloriginal(mg) L.2.L1 Surviving # Original # Wt/original (mg) I 76 Surviving # Original # Wt/original (mg) Water Quality Data Control pH (SU) Init/Fin DO (mglL) lnit/Fin Temp (C) Init/Fin High Concentration pH (SU) Init/Fin DO (mglL) Init/Fin Temp (C) Init/Fin Facility: Gastonia - Long Creek rat x Signaure of Operator in Respo[ sibie Charge ry: Merit�ch, Inc. Signature of Laboratory Supervisor Effluent Toxicity Report Form -Chronic Fathead Minnow Multi -Concentration Test NPDES # NC00 20184 Pipe #: 001 County: Gaston MAIL ORIGINAL TO: Test Initiation Date/Time 6/5/2018 10 10 0.656 5:11 PM 9 10 10 'EO 0.681 0.694 10 10 0.685 10 10 0.812 Water Sciences Section Aquatic Toxicology Branch Division of Water Resources 1621 Mail Service Center Raleigh, N.C. 27699-1621 4 10 10 0.790 10 10 0.617 0 10 10 0.748 8.20 / 7.88 7.83 l 6.68 24.6 1 24.3 10 10 0.784 t 2 8.23 1 7.85 7.42 1 6.16 24.0 1 24.9 10 Avg WilSurv. Control 0.715 10 0.735 Day Date:611512018 Test Organisms Cultured In -House Survival'. 97.5 I v. Outside Supplier Avg Wt (mg)1 0.695 ( Hatch Date: 6/4/18 % Survival 97.5 Hatch Time: 3:00 pm CT Avg Wt (mg)1 0.720 I % Survival Avg Wt (mg)1. 0.660 % Survival Avg Wt (mg)l 0.823 1 % Survival) 100.0 Avg Wt (mg) % Survival 100.0 Avg Wt (mg) 97.5 J 1 97.5 0.736 3 4 8.14 / 7.68 7.74 / 6.82 24.7 24.0 0 7.61 / 7.84 8.38 / 6.79 24.8 / 24.4 7.74 / 7.80 7.6/ 6.11 24.6 1 24.4 2 7.71 / 7.81 8.40 / 6.67 24.8 / 24.3 Sample 1 2 3 Collection Start Date 6/4/2018 6/6/2018 6/7/2018 Grab Composite (Duration) Hardness (mglL) Alkalinity (mg/L) Conductivity (umhoslcm) Chlorine(mgIL) Term. at Receipt (°C) Dilution H2O Batch # Hardness (mg/L) Alkalinity (mg/L) Conductivity (umhoslcm) 8.09 1 8.11 7,55! 7.93 24.7 / 24.1 3 7.73 1 8.18 7.74 1 8.18 24.5 1 24.1 8.48 / 7.71 8.18 / 6.60 24.2 l 24.4 4 8.08 / 7.79 8.31 ! 6.67 24.3 1 25.1 I 0.721 5 8.17 / 7.90 8.10 •98 24.5 24.5 5 7.83 / 7.95 8.22 1 7.27 25.0 / 24.3 6 8.07 / 7.70 7.58 1 6.35 25.1 / 24,6 6 7.91 / 7.80 7.65 16.34 24,8 1 24.4 Survival Growth Overall Result Normal l l ChV Hom. Var. 76 76 24.0 23.9 24.1 NOEC >76 >76 48 52 LOEC 75 ChV >76 >76 - Method Steel's Dunnett's 396 441 405 1.3 1.6 0.7 1273 43 57 189 1274 46 1275 46 53 54 21 5 180 1276 44 56 185 Stats Survival Conc. Critical Calculated 4.75 10 18 9.5 10 18 15 10 18 38 10 20 76 10 20 1 >76 1 Growth Critical Calculated 2.41-0.5270 2.41 0.7378 2.41-2.6824 2.41-0.8537 2.41-0.5428 Temperature Average of Value Years 2016 Date Jun Jul Aug Day 1 2 3 6 7 8 13 14 16 20 21 22 27 28 29 5 6 8 11 12 13 18 19 20 25 26 27 1 2 3 8 9 11 15 16 17 22 23 24 29 30 31 Sep 6 8 9 13 15 16 20 22 2 1 Paramete Location 00010 - TemperE Downstre, Upstream 23.8 23.8 23.7 24.1 24.7 24.0 25.5 26.7 27.1 25.0 25.9 26.5 26.9 25.3 25.5 23.8 23.6 23.8 24.1 24.5 23.9 25.7 26.3 27.3 25.7 25.7 26.5 27.5 25.4 25.5 26.2 26.5 26.1 27.5 26.9 27.7 25.7 26.9 27.3 29.1 28.7 29.7 26.3 26.8 26.5 27.1 27.1 27.2 26.4 26.8 27.1 30.2 30.3 30.5 28.8 27.6 26.7 26.4 26.1 26.3 28.1 28.5 29.0 27.0 26.6 26.2 26.8 26.8 27.0 28.8 27.5 26.5 26.2 26.0 26.1 28.2 29.0 28.7 27.6 26.6 26.3 27.3 28.0 27.7 24.6 25.5 26.2 26.0 26.0 25.2 25.1 24.2 25.4 26.4 27.1 26.2 26.4 25.7 25.5 24.3 Diff 0.0 0.2 -0.1 0.0 0.2 0.1 -0.2 0.4 -0.2 -0.7 0.2 0.0 -0.6 -0.1 0.0 -0.1 -0.3 -0.4 0.4 -0.2 0.5 -0.7 0.1 0.2 -1.1 -1.6 -0.8 0.0 0.1 0.2 0.2 0.1 0.2 -0.1 -0.5 0.3 -0.6 0.0 -0.1 -0.5 -1.2 -0.7 -0.8 -0.9 -0.9 -0.2 -0.4 -0.5 -0.4 -0.1 F-Test Two -Sample for Variances Mean Variance Observations df F P(F<=f) one -tail F Critical one -tail Variable 1 20.18042453 50.96710998 424 423 1.061516701 0.269772025 1.173664577 Variable 2 20.40471698 48.01347914 424 423 Comment: The variance of Variable . The variances of the two sets are equal. t-Test: Two -Sample Assuming Equal Variances Mean Variance Observations Pooled Variance Hypothesized Mea df t Stat P(T<=t) one -tail t Critical one -tail P(T<=t) two -tail t Critical two -tail Variable 1 20.18042453 50.96710998 424 49.49029456 0 846 -0.464218636 0.32130527 1.646656758 0.642610541 1.962772035 Variable 2 20.40471698 48.01347914 424 Comment: We look at the p-value, tv . Conclusion: There is no statistically . 2016 Sep 23 24.2 26 24.4 29 23.2 30 22.8 2017 Oct Nov Dec Jan Feb Mar Apr May Jun 4 11 18 28 31 11 14 21 28 5 12 19 27 3 13 17 23 30 6 13 20 28 8 15 22 29 5 12 19 26 2 8 15 22 30 311 1 5 7 8 12 13 14 19 20 21 26 27 28 24.0 0.2 24.9 -0.5 22.9 0.3 23.4 -0.6 0.2 0.1 - 0.6 - 0.4 0.1 0.0 0.7 1.0 1.0 1.0 1.0 0.3 0.3 1.3 1.3 0.0 0.0 1.0 1.3 0.0 1.0 0.3 0.0 0.7 0.0 0.0 0.0 0.0 0.0 0.0 - 0.5 0.0 0.5 0.0 0.0 - 0.5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.0 0.0 0.0 0.0 0.0 26.1 -0.5 26.0 0.0 21.6 17.6 20.0 15.7 16.7 21.4 17.5 20.6 16.1 16.6 12.0 10.7 9.0 9.0 12.0 10.0 8.0 8.0 10.0 6.0 6.3 11.3 9.0 5.0 6.0 11.0 9.3 7.3 11.0 12.0 7.0 8.0 6.0 11.0 12.0 6.0 8.3 12.0 12.0 13.3 7.0 12.0 11.0 13.0 13.0 7.7 14.0 18.0 13.0 7.0 14.0 18.0 17.0 17.0 19.0 16.0 17.0 17.0 19.0 16.0 19.5 16.0 19.5 22.0 22.0 22.5 20.0 16.0 19.0 22.0 22.0 23.0 23.0 24.0 23.0 22.0 24.0 25.0 25.0 26.0 26.0 25.0 24.0 24.0 23.0 Jul 5 25.5 6 26.0 23.0 24.0 23.0 22.0 24.0 25.0 25.0 26.0 25.0 25.0 24.0 24.0 23.0 2017 Jul 7 11 12 13 17 18 19 24 25 26 31 Aug Sep Oct Nov Dec 1 2 7 9 10 14 15 16 21 22 23 28 29 30 5 7 8 11 12 13 18 19 20 26 27 28 6 9 19 26 30 6 15 20 1 7 15 19 29 26.5 26.0 27.0 28.0 27.0 27.0 27.0 28.5 28.5 27.5 25.0 27.0 26.0 27.0 28.0 27.0 27.0 27.0 28.0 29.0 27.0 26.01 25.5 25.0 25.5 25.0 24.5 26.0 26.5 26.0 28.5 28.0 28.0 24.0 23.5 23.0 26.0 25.0 26.0 24.0 25.0 26.0 26.0 26.0 28.0 29.0 29.0 25.0 23.0 23.0 23.5 21.0 20.0 18.5 19.0 18.5 22.5 23.0 23.5 23.5 23.5 24.5 24.0 20.0 20.0 19.0 18.0 18.0 23.0 23.0 24.0 23.0 24.0 25.0 20.5 21.5 17.0 15.0 13.0 21.0 21.0 17.0 15.0 12.0 16.5 10.0 10.0 16.0 9.0 9.0 9.5 10.0 5.5 7.0 4.5 8.0 9.0 4.0 6.0 4.0 2018 Jan 2 1.0 0.0 10 2.0 1.0 19 2.5 1.0 22 4.5 3.0 29 9.0 8.0 - 0.5 0.0 0.0 0.0 0.0 0.0 0.0 0.5 - 0.5 0.5 - 1.0 - 0.5 0.0 - 0.5 1.0 - 0.5 0.0 0.5 0.0 0.5 - 1.0 - 1.0 - 1.0 0.5 0.0 - 0.5 1.0 0.0 - 0.5 1.0 0.5 - 0.5 0.0 - 0.5 0.5 - 0.5 - 0.5 - 0.5 0.5 0.0 0.0 1.0 0.5 1.0 1.0 1.5 1.0 1.5 1.0 0.5 1.0 1.0 1.5 1.5 1.0 2018 Feb Mar Apr May Jun Jul Aug 9 12 19 26 5 13 19 26 2 9 16 26 30 71 14 21 291 4 5 6 11 12 13 18 19 20 25 26 271 2 3 6 9 10 12 16 17 18 23 24 26 30 31 8.0 12.0 12.5 16.0 8.0 12.0 12.0 16.0 11.0 8.0 13.0 9.0 10.0 7.0 13.0 9.0 16.0 12.0 16.0 16.0 15.0 16.0 12.0 16.0 15.0 15.0 20.0 24.0 22.5 22.5 20.0 24.0 22.0 22.0 23.5 22.5 22.0 25.0 24.0 24.0 26.5 26.5 27.0 26.5 26.0 25.5 23.0 22.0 23.0 25.0 24.0 23.0 26.0 26.0 27.0 26.0 26.0 25.0 27.0 27.0 27.5 24.5 25.0 26.5 27.0 27.0 27.0 26.0 25.0 25.5 26.5 27.0 27.0 27.0 28.0 25.0 25.0 26.0 27.0 27.0 27.0 26.0 25.0 25.0 26.0 27.0 1 26.0 25.0 6 26.5 26.0 7l 26.0 26.0 8 27.0 27.0 13 26.0 26.0 14 26.5 26.0 15 26.0 26.0 20 27.0 27.0 21 26.0 25.0 22 26.5 26.0 27 25.0 25.0 28 25.5 26.0 0.0 0.0 0.5 0.0 1.0 1.0 0.0 0.0 0.0 0.0 0.0 1.0 0.0 0.0 0.0 0.5 0.5 0.5 0.5 - 1.0 0.0 0.0 1.0 0.5 0.5 0.0 0.5 0.0 0.5 0.0 0.0 - 0.5 - 0.5 0.0 0.5 0.0 0.0 0.0 0.0 0.0 0.5 0.5 0.0 1.0 0.5 0.0 0.0 0.0 0.5 0.0 0.0 1.0 0.5 0.0 - 0.5 2018 Au• 29 26.0 26.0 2019 Sep Oct Nov Dec Jan Feb Mar Apr May 5 6 71 10 12 13 18 19 20 24 25 26 5 9 17 23 29 5 13 20 26 3 11 17 26 4 7 14 23 28 4 13 18 26 4 11 20 25 5 9 17 22 30 6 13 20 28, Jun 3 4 5 10 12 14 17 27.0 27.0 27.5 26.5 26.0 26.0 23.0 24.0 24.0 23.0 22.5 23.5 27.0 28.0 28.0 26.0 25.0 25.0 22.0 23.0 23.0 23.0 23.0 23.0 24.0 24.0 20.0 14.5 13.0 23.0 23.0 19.0 14.0 13.0 14.0 9.0 11.0 10.0 13.0 9.0 10.0 10.0 12.0 5.5 9.0 7.0 11.0 5.0 8.0 7.0 12.0 10.0 6.5 6.0 7.0 11.0 10.0 6.0 5.0 6.0 9.0 9.0 9.0 11.0 8.0 9.0 9.0 11.0 10.0 11.5 11.5 13.0 10.0 11.0 11.0 13.0 14.0 18.0 17.0 15.0 19.5 14.0 17.0 17.0 15.0 19.0 21.0 20.0 23.0 25.0 20.0 20.0 22.0 25.0 23.5 23.0 23.5 22.0 21.0 20.0 23.5 23.0 23.0 23.0 22.0 20.0 19.01 23.0 0.0 0.0 - 1.0 - 0.5 0.5 1.0 1.0 1.0 1.0 1.0 0.0 - 0.5 0.5 1.0 1.0 1.0 0.5 0.0 1.0 0.0 1.0 0.0 1.0 0.5 1.0 0.0 1.0 0.0 0.5 1.0 1.0 1.0 0.0 0.0 0.0 0.0 0.5 0.5 0.0 0.0 1.0 0.0 0.0 0.5 1.0 0.0 1.0 0.0 0.5 0.0 0.5 0.0 1.0 1.0 0.5 2019 Jun 18 23.5 23.0 19 23.5 23.0 24 24.0 24.0 26 23.5 23.0 27 25.0 24.0 Jul Aug Sep Oct Nov 2 3 55 8 11 12 15 17 18 23 24 25 29 30 31 5 7 8 12 13 14 20 21 22 26 27 281 4 5 6 9 10 11 18 19 20 24 25 26 4 9 15 22 29 4 13 20 25 26.5 26.5 26.0 27.0 26.5 26.0 27.0 27.0 27.5 26.5 24.5 24.5 25.0 25.0 25.0 27.0 26.0 26.0 27.0 26.0 26.0 27.0 27.0 27.0 26.0 24.0 24.0 25.0 25.0 25.0 25.0 26.0 26.0 26.0 27.5 26.0 26.5 26.5 27.0 22.5 22.5 23.5 25.0 26.0 26.0 27.0 28.0 26.0 26.0 26.0 27.0 22.0 22.0 23.0 26.0 25.0 25.0 26.0 27.0 27.0 25.0 23.5 22.0 24.0 23.5 24.0 25.0 25.0 26.0 26.0 27.0 26.0 25.0 23.0 22.0 24.0 24.0 24.0 25.5 21.0 18.0 17.0 18.0 26.0 21.0 18.0 16.0 18.0 12.0 8.5 10.0 10.0 11.0 8.0 9.0 10.0 Dec 41 10.0 9.0 9 8.0 8.0 0.5 0.5 0.0 0.5 1.0 - 0.5 0.5 0.0 0.0 0.5 0.0 0.0 0.0 0.5 0.5 0.5 0.5 0.0 0.0 0.0 0.0 0.0 0.0 - 1.0 - 0.5 0.0 0.5 0.5 0.0 0.5 0.5 0.5 1.0 0.0 - 1.0 0.0 0.0 1.0 0.0 0.5 0.0 0.0 - 0.5 0.0 - 0.5 0.0 0.0 1.0 0.0 1.0 0.5 1.0 0.0 1.0 0.0 2019 Dec 16 9.5 9.01 26 9.0 9.0 31 11.0 11.0I 2020 Jan Feb Mar Apr May Jun Jul Aug 8 15 23 27 5 13 18 25 4 9 18 25 1 7 15 21 27 5 13 21 26 2 3 4 8 9 10 16 17 19 22 23 24 29 30 1 7 8 10 13 14 16 21 22 23 27 29 30 8.0 14.0 4.5 8.0 7.0 14.0 4.0 7.0 12.0 13.5 10.0 10.0 11.0 13.0 10.0 10.0 11.0 10.5 15.0 14.0 11.0 10.0 14.0 14.0 15.0 17.5 16.0 15.5 17.0 15.0 17.0 16.0 15.0 16.0 18.0 15.0 15.0 19.5 18.0 15.0 14.0 20.0 21.0 22.5 23.5 25.0 24.5 25.5 19.0 17.5 19.0 22.5 23.0 23.0 24.5 24.5 20.0 22.0 23.0 25.0 24.0 25.0 20.0 17.0 19.0 23.0 23.0 23.0 24.0 24.0 24.5 25.0 25.5 26.0 27.0 27.0 27.0 29.0 26.5 27.5 26.5 27.0 26.5 24.0 25.0 25.0 26.0 26.0 27.0 27.0 26.0 26.0 27.0 26.0 27.0 26.0 3 26.0 26.0 4 25.0 25.0 51 26.0 26.0 11 26.0 26.0 0.5 0.0 0.0 1.0 0.0 0.5 1.0 1.0 0.5 0.0 0.0 0.0 0.5 1.0 0.0 0.0 0.5 0.0 0.5 1.0 0.0 0.0 1.0 - 0.5 1.0 0.5 0.5 0.0 0.5 0.5 - 1.0 0.5 0.0 - 0.5 0.0 0.0 0.5 0.5 0.5 0.0 0.5 0.0 1.0 0.0 0.0 3.0 0.5 0.5 0.5 0.0 0.5 0.0 0.0 0.0 0.0 2020 Aug 12 13 17 19 2021 DO Sep Oct Nov Dec Jan Feb 20 24 25 28 2 4 8 9 10 14 15 18 21 22 23 28 29 30 6 14 21 28 6 9 17 25 2 7 15 22 29 7 12 19 26 1 9 17 24 Average of Value Years Date 2016 Jun Day 1 26.0 25.5 24.0 24.0 24.5 23.5 23.5 25.5 25.0 25.0 23.0 24.0 24.0 23.0 23.0 25.0 24.5 25.5 25.0 22.5 23.0 23.0 24.5 23.5 20.5 17.5 17.0 17.5 19.0 20.0 19.0 24.0 25.0 25.0 22.0 23.0 23.0 24.0 23.0 20.0 17.0 17.0 17.0 18.0 19.0 18.0 16.5 18.5 17.0 17.0 16.0 18.0 16.0 17.0 13.0 16.0 14.0 11.0 12.0 15.0 13.0 11.0 9.0 9.0 10.0 9.0 6.0 9.0 9.0 10.0 9.0 6.0 7.5 7.0 6.0 8.0 8.0 6.0 6.0 8.0 6.0 8.0 7.5 10.0 6.0 8.0 7.0 9.0 2 1 Paramete Location 1.0 0.5 1.0 0.0 0.5 0.5 0.5 0.5 0.5 0.5 0.0 0.5 0.0 0.0 0.5 0.5 0.5 0.5 0.0 0.5 1.0 1.0 1.0 0.5 0.5 1.0 0.0 1.0 1.0 1.0 0.0 0.0 0.0 0.0 0.0 0.0 -0.5 1.0 0.0 0.0 0.0 0.0 0.5 1.0 00300 - Oxygen, . Diff Downstre Upstream 7.8 8.01 -0.2 F-Test Two -Sample for Variances 2016 Jun 2 3 6 71 8 13 14 16 20 21 22 27 28 29 Jul Aug Sep 5 6 8 11 12 13 18 19 20 25 26 27 1 2 3 8 9 11 15 16 17 22 23 24 29 30 31 6 8 9 13 15 16 20 22 23 26 29 30 7.6 8.4 8.3 8.1 8.1 9.0 7.4 7.4 8.0 7.8 7.9 6.9 6.7 6.9 7.4 8.5 8.2 8.3 8.2 9.0 7.4 7.4 8.0 7.8 7.7 6.8 6.8 6.9 7.2 7.8 7.1 6.8 6.7 7.3 7.1 7.1 6.9 6.6 7.1 6.7 7.3 7.9 7.1 6.8 6.5 7.4 7.2 7.1 6.8 6.5 7.1 6.7 6.7 6.6 7.0 7.1 7.2 7.2 6.5 7.5 7.0 6.6 6.6 6.9 7.7 7.0 6.8 6.5 6.5 7.1 8.0 7.1 7.1 6.4 7.5 6.6 6.6 6.6 6.8 7.7 7.1 7.2 7.4 7.2 7.2 6.4 6.7 6.4 6.4 6.6 6.7 7.8 7.3 6.6 7.8 7.3 7.3 7.1 7.1 7.1 7.0 6.8 6.9 8.3 7.4 6.5 Oct 4 8.2 7.4 11 8.8 8.3 0.2 - 0.1 0.1 - 0.2 - 0.1 0.0 0.0 0.0 0.0 0.0 0.2 0.1 - 0.1 0.0 - 0.1 - 0.1 0.0 0.0 0.2 - 0.1 - 0.1 0.0 0.1 0.1 0.0 0.0 0.2 0.1 - 0.1 - 0.9 0.1 0.1 0.1 0.0 0.4 0.0 0.0 0.1 0.0 - 0.1 - 0.4 - 0.4 - 0.1 - 0.1 - 0.7 - 0.4 - 0.7 - 0.6 - 0.2 - 0.2 - 0.5 - 0.1 0.1 0.8 0.5 Variable 1 Variable 2 Mean Variance Observations df F P(F<=f) one -tail F Critical one -tail 8.633490566 3.002279986 424 423 1.145838192 0.080968003 1.173664577 8.832036164 2.620160515 424 423 Comment: The variance of Variable . The variances of the two sets are equal. t-Test: Two -Sample Assuming Equal Variances Mean Variance Observations Pooled Variance Hypothesized Mea df t Stat P(T<=t) one -tail t Critical one -tail P(T<=t) two -tail t Critical two -tail Variable 1 8.633490566 3.002279986 424 2.81122025 0 846 -1.724172666 0.042520989 1.646656758 0.085041977 1.962772035 Variable 2 8.832036164 2.620160515 424 Comment: We look at the p-value, tv . Conclusion: There is no statistically . 2016 Oct 18 9.2 28 10.5 31 9.2 2017 Nov Dec Jan Feb Mar Apr May Jun Jul 11 14 21 28 5 12 19 27 3 13 17 23 30 6 13 20 28 8 15 22 29 5 12 19 26 21 8 15 22 30 31 1 5 7 8 12 13 14 19 20 21 26 27 28 6 7 11 12 13 17 18 10.0 10.5 11.3 11.3 9.9 10.2 11.1 11.2 8.8 0.4 10.1 0.4 8.9 0.3 0.1 0.3 0.2 0.1 0.3 0.0 0.2 0.6 0.1 -0.1 0.4 0.2 0.2 0.3 0.6 0.5 0.5 0.5 0.4 0.6 0.4 0.1 0.3 0.6 -0.2 0.4 0.2 0.4 0.5 0.6 0.7 0.4 0.4 0.4 0.4 0.4 0.5 0.4 0.5 0.5 0.5 0.3 0.4 0.3 10.6 12.1 11.5 11.7 10.3 12.1 11.3 11.1 11.1 12.4 11.0 10.0 11.9 11.0 12.5 10.6 9.8 11.7 11.7 10.9 11.0 10.6 11.4 10.3 10.5 10.1 10.8 10.8 10.7 9.6 10.3 10.4 10.1 9.2 9.6 9.4 8.4 10.7 9.5 9.1 7.8 10.9 8.5 9.7 9.0 8.6 8.9 8.9 8.1 9.5 8.6 8.1 8.3 8.2 8.6 8.2 7.8 8.1 7.8 8.0 8.1 7.9 7.5 7.4 7.8 7.9 7.9 8.2 7.8 7.4 7.7 7.4 7.5 7.7 7.4 7.0 6.9 7.5 7.5 7.6 7.6 7.9 7.7 7.5 7.6 7.5 7.4 7.5 7.1 7.4 7.3 7.1 7.1 7.1 7.1 6.9 0.5 0.5 0.4 0.4 0.5 0.4 0.3 0.6 2017 Jul 19 24 25 26 31 2018 Aug Sep Oct Nov Dec Jan Feb 1 2 7 9 10 14 15 16 21 22 23 28 29 30 5 7 8 11 12 13 18 19 20 26 27 28 6 9 19 26 30 6 15 20 1 7 15 19 29 2 10 19 22 29 12 19 26, Mar 5 13 8.0 7.1 7.4 7.1 7.5 7.61 6.4 6.7 6.7 7.0 7.4 7.6 7.4 7.8 7.6 7.5 7.7 7.9 7.2 7.3 7.5 7.5 7.4 7.4 6.9 7.2 7.0 7.3 7.1 6.9 7.5 7.5 6.8 6.8 6.9 7.0 6.9 7.0 7.6 8.4 9.2 8.6 9.0 9.4 8.2 8.0 8.1 8.1 7.6 7.6 7.2 8.2 8.7 8.2 8.7 9.2 7.6 7.6 7.7 7.5 7.1 7.1 8.7 8.4 8.6 9.7 10.3 8.5 8.4 8.2 9.5 9.1 9.6 10.6 10.6 9.4 10.4 10.3 11.8 11.5 12.4 12.2 12.8 11.7 11.3 12.4 12.2 12.6 13.3 14.1 14.5 13.0 11.7 13.1 14.0 14.6 13.1 12.1 11.6 11.1 10.2 9.5 11.4 11.2 10.0 9.1 11.1 10.9 11.8 11.7 0.4 0.6 0.6 0.4 0.5 0.5 0.4 0.4 0.5 0.5 0.6 0.2 0.4 0.4 0.5 0.6 0.5 0.5 0.4 0.4 0.2 0.4 0.4 0.3 0.2 0.6 0.4 0.4 0.6 0.5 0.5 0.1 0.0 0.4 0.2 1.2 0.2 0.2 0.3 0.1 0.1 0.0 0.0 0.2 0.2 0.1 - 0.2 - 0.2 - 0.4 0.2 - 0.1 0.2 0.4 0.2 0.1 2018 Mar 19 9.8 9.6 26 10.9 10.8 Apr May Jun Jul Aug 21 9 16 26 30 7 14 21 29 4 5 6 11 12 13 18 19 20 25 26 27 2 3 6 9 10 12 16 17 18 23 24 26 30 31 1 6 7 8 13 14 15 20 21 22 27 28 29 9.9 10.4 9.8 10.3 9.4 9.6 10.2 9.7 10.5 9.2 8.6 8.7 8.7 8.6 8.0 8.3 8.6 8.4 8.5 8.8 8.6 8.2 8.0 8.8 8.2 8.2 8.1 7.5 8.1 7.7 8.4 8.6 8.2 7.8 7.5 8.6 7.8 7.7 7.6 7.0 7.6 8.1 7.7 8.0 7.6 7.8 8.8 7.8 7.4 7.3 7.7 7.6 8.1 8.2 7.5 7.9 7.2 7.4 7.0 7.4 8.4 7.3 6.6 6.8 7.0 7.2 7.7 8.0 7.0 7.5 7.5 7.7 7.6 7.9 7.7 8.2 7.4 7.5 7.8 7.9 7.7 7.8 7.4 7.0 7.3 7.4 7.4 7.3 7.7 7.2 6.9 7.1 7.2 7.0 7.3 6.9 Sep 5 7.1 6.6 6 7.2 6.7 7 7.5 6.9 10 7.2 6.5 12 7.4 6.8 0.2 0.0 0.3 0.2 0.1 -0.2 0.2 0.6 0.4 0.1 0.2 0.0 0.2 0.4 0.4 0.5 0.2 0.4 0.5 0.5 0.5 0.5 -0.4 0.5 0.6 0.6 0.4 0.4 0.5 0.8 0.5 0.7 0.4 0.4 0.2 0.5 0.4 0.5 0.4 0.2 0.4 0.4 0.5 0.1 0.6 0.7 0.7 0.7 0.5 0.4 0.5 0.5 0.6 0.7 0.6 2018 Sep 13 7.4 7.1 18 8.6 8.7 19 8.3 8.1 20 8.1 7.7 24 7.7 7.2 25 8.0 7.3 26 8.2 7.7 2019 Oct Nov Dec Jan Feb Mar Apr May Jun Jul 5 9 17 23 29 5 13 20 26 3 11 17 26 4 7 14 23 28 4 13 18 26 4 11 20 25 5 9 17 22 30 6 13 20 28 3 4 5 10 12 14 17 18 19 24 26 27 8.1 7.7 8.7 9.9 10.4 7.3 7.1 8.5 9.8 10.4 9.9 11.2 10.9 11.7 10.0 11.5 11.0 11.4 10.7 12.7 11.7 12.3 10.8 13.1 12.0 12.2 10.5 11.2 12.2 12.3 12.1 9.6 11.2 12.3 12.5 12.2 11.4 11.3 11.8 11.4 11.5 11.2 12.2 11.4 10.8 11.3 11.0 10.7 11.0 11.4 11.2 10.7 9.8 9.0 9.9 10.2 9.4 9.8 9.8 9.9 10.1 9.3 8.8 9.1 8.4 8.1 8.7 9.1 8.2 7.9 8.1 8.1 8.2 8.1 8.5 8.6 9.0 8.7 8.3 8.1 8.1 8.2 7.6 7.8 8.0 5.9 8.6 8.5 8.9 8.5 8.0 7.9 7.6 8.0 7.8 7.4 0.3 - 0.1 0.2 0.4 0.5 0.7 0.5 0.8 0.6 0.2 0.1 - 0.1 - 0.1 - 0.4 - 0.1 0.3 - 0.1 - 0.4 - 0.3 0.1 0.9 0.0 - 0.2 - 0.3 - 0.1 - 0.1 0.1 - 0.4 0.0 - 0.2 - 0.2 - 0.2 0.0 0.0 - 0.9 0.0 0.1 0.0 0.1 0.0 0.2 0.2 0.5 0.3 0.2 2.2 - 0.1 0.1 0.1 0.2 0.3 0.2 0.5 0.2 0.4 2019 Jul 3 7.7 7.3 5 7.5 7.2 8 7.8 7.6 11 7.7 7.4 12 7.8 7.6 15 8.1 7.6 17 8.1 7.6 18 7.7 7.4 23 7.4 7.0 24 8.0 7.8 25 8.2 8.0 29 8.0 7.6 30I 7.9 7.5 31 7.9 7.5 Aug Sep Oct Nov Dec 5 7 8I 12 13 14 20 21 22 26 27 28 4 5 6 9 10 11 18 19 20 24 25 26 41 9 15 22 29 41 13 20 25 4 9 16 26 31 7.9 8.4 7.9 8.0 7.7 7.3 7.6 7.6 7.6 8.1 7.9 8.2 7.6 7.8 7.6 7.7 7.3 6.9 7.3 7.1 7.1 7.6 7.7 7.9 7.8 7.7 7.6 8.0 7.6 7.5 7.6 7.9 8.1 8.5 8.4 7.9 7.3 7.2 7.1 7.5 7.1 7.0 7.0 7.4 7.5 7.9 7.8 7.9 7.6 8.1 8.6 9.5 9.0 7.0 7.5 8.1 9.4 8.6 10.1 10.7 10.9 11.3 10.0 10.6 10.8 11.2 11.3 11.4 11.6 11.5 10.5 11.3 11.8 11.7 11.6 10.3 2020 Jan 8 11.8 11.7 15 10.1 10.4 23 12.3 12.3 0.4 0.2 0.2 0.3 0.2 0.5 0.5 0.3 0.4 0.2 0.2 0.4 0.4 0.4 0.3 0.6 0.3 0.2 0.4 0.4 0.3 0.5 0.5 0.5 0.2 0.3 0.5 0.5 0.5 0.5 0.5 0.4 0.6 0.5 0.6 0.6 0.6 0.0 0.6 0.6 0.5 0.1 0.4 0.1 0.1 0.0 0.1 0.0 - 0.5 - 0.1 - 0.1 0.1 0.1 - 0.4 0.0 2020 Jan 27 11.9 12.0 Feb Mar Apr May Jun Jul Aug 5 13 18 25 4 9 18 25 1 7 15 21 27 5 13 21 26 2 3 4 8 9 10 16 17 19 22 23 24 29 30 1 7 8 10 13 14 16 21 22 23 27 29 30 10.9 10.8 11.4 11.3 10.9 11.0 11.4 11.5 10.8 11.1 10.3 10.4 10.7 11.1 10.3 10.8 9.5 9.2 9.4 10.1 9.5 9.1 10.0 10.1 9.0 9.3 9.1 9.4 9.7 9.4 8.9 9.9 10.5 8.8 8.8 8.6 8.4 8.1 8.1 8.0 8.9 9.5 9.1 8.5 8.3 8.3 8.0 8.1 8.8 8.4 8.3 7.8 7.8 7.7 8.6 9.5 9.1 8.4 8.2 8.1 8.0 7.9 8.2 8.0 8.1 7.9 7.8 7.9 7.8 7.4 7.8 7.7 7.8 7.7 7.8 8.0 7.9 7.8 7.6 7.5 7.5 7.6 7.3 7.4 7.3 7.5 7.3 7.6 3 7.7 7.9 7.9 1 7.8 1 7.9 1 7.9 1 8.5 1 8.1 20 8.2 24 8.4 4 5 1 2 3 7 9 7.3 7.5 7.6 7.5 7.6 7.6 8.6 7.8 8.0 8.2 -0.1 -0.1 -0.3 -0.1 -0.2 0.1 0.0 -0.1 -0.5 0.2 0.1 0.0 0.4 0.1 0.2 0.1 -0.4 0.2 0.0 0.2 0.0 0.3 0.3 0.2 0.3 -0.1 0.0 0.1 0.1 0.2 0.0 0.2 0.2 0.1 0.3 0.3 0.3 0.4 0.2 0.0 0.4 0.4 0.3 0.4 0.2 0.4 0.4 0.3 0.3 0.3 0.3 -0.1 0.3 0.2 0.2 2020 Aug 25 8.3 8.0 28 8.0 7.7 2021 Sep Oct Nov Dec Jan Feb Conductivity 1 21 4 8 9 10 14 15 18 21 22 23 28 29 30 14 21 28 6 9 17 25 2 7 15 22 29 7 12 19 26 1 9 17 24 Average of Value Years Date 8.1 8.0 7.9 8.4 8.3 8.3 8.2 8.2 9.1 9.5 9.4 9.4 9.2 8.9 9.1 8.0 7.8 7.6 8.1 8.1 8.1 7.9 7.9 9.2 9.4 9.2 9.3 9.2 8.9 9.2 9.7 9.5 9.8 9.4 9.5 9.3 9.7 9.3 10.6 9.9 10.2 11.0 10.6 9.8 10.3 10.9 11.4 11.3 11.4 11.6 12.6 11.4 11.3 11.6 11.6 12.5 12.0 12.2 12.4 11.6 12.0 12.4 12.5 11.7 12.2 11.9 12.2 11.5 12.4 11.9 12.6 11.6 0.3 0.3 0.1 0.1 0.3 0.3 0.2 0.2 0.3 0.3 - 0.1 0.0 0.2 0.0 0.0 0.0 - 0.1 0.2 0.1 0.1 0.0 0.0 0.0 - 0.1 0.0 0.0 - 0.1 - 0.2 0.0 0.1 - 0.1 - 0.2 - 0.1 - 0.1 - 0.3 0.0 - 0.4 - 0.2 Paramete Location 00094 - Conductivity Diff Day Downstre, Upstream 2016 Jun 1 2I F-Test Two -Sample for Variances 115.1 94.3 20.8 129.3 90.8 38.5 Variable 1 Variable 2 3 120.5 97.9 22.6 Mean 102.1136792 77.59174528 6 128.0 97.8 30.2 Variance 576.6508815 377.0017993 2016 Jun 7I 8 13 141 16 20 21 22 27 Jul Aug Sep 28 29 5 6 8 11 12 13 18 19 20 25 26 27 1 2 3 8 9 11 15 16 17 22 23 24 29 30 31 6 8 9 13 15 16 20 22 23 26 29 30 Oct 4 11 18 28 31 124.0 134.1 152.7 162.5 152.9 170.7 170.5 187.6 147.8 134.8 129.1 94.1 97.1 115.9 124.7 119.8 127.9 126.8 129.2 132.0 123.9 103.0 104.2 110.6 105.1 129.4 121.8 140.7 101.9 100.3 119.2 139.7 118.7 125.8 79.1 76.2 80.5 91.8 91.3 89.1 68.8 64.6 82.5 98.1 90.1 95.1 116.9 126.5 140.3 114.7 96.6 108.9 119.7 126.0 123.8 156.3 131.4 125.9 162.8 150.3 116.9 104.5 100.1 103.1 87.8 73.4 74.0 84.0 81.8 86.1 103.3 93.2 100.2 104.0 108.1 108.1 118.7 130.4 153.1 136.1 134.3 130.8 136.9 156.4 152.6 154.2 86.6 92.5 100.9 103.2 104.2 113.9 119.1 122.6 131.1 131.8 127.5 134.7 73.8 81.7 111.9 112.8 145.3 129.3 137.0 93.0 96.6 111.2 110.9 116.6 29.9 37.0 36.8 37.8 33.1 42.8 43.7 58.4 15.8 10.9 26.1 25.1 34.4 24.6 37.6 30.5 51.6 33.1 35.7 36.7 41.6 28.6 30.7 12.4 26.4 37.2 26.9 23.2 34.9 35.7 44.2 37.7 53.0 38.2 25.7 58.8 42.2 8.8 17.8 27.2 48.9 22.2 15.2 8.2 5.8 24.6 25.1 19.5 12.8 10.8 18.9 16.2 34.1 18.4 20.4 Observations df F P(F<=f) one -tail F Critical one -tail 424 423 1.529570635 6.76034E-06 1.173664577 424 423 Comment: The variance of Variable . The variances of the two sets are unequal. t-Test: Two -Sample Assuming Unequal Variances Mean Variance Observations Hypothesized Mea df t Stat P(T<=t) one -tail t Critical one -tail P(T<=t) two -tail t Critical two -tail Variable 1 102.1136792 576.6508815 424 0 810 16.35093266 1.90106E-52 1.64673699 3.80213E-52 1.962897021 Variable 2 77.59174528 377.0017993 424 Comment: We look at the p-value, t' . Conclusion: There is statistically a E . 2016 2017 Nov Dec Jan Feb Mar Apr May Jun Jul 11 14 21 28 5 12 19 27 3 13 17 23 30 6 13 20 28 8 15 22 29 5 12 19 26 2 8 15 22 30 31 1 5 7 8 12 13 14 19 20 21 26 27 28 6 7 11 12 13 17 18 19 24 25 130.3 128.0 129.7 120.0 112.0 115.0 113.0 106.0 110.3 104.0 115.0 114.3 87.0 83.0 106.0 96.0 97.3 130.0 115.3 101.7 109.7 79.0 105.0 96.0 85.0 79.0 120.0 113.7 114.3 117.3 95.0 95.0 96.0 96.0 107.7 116.7 108.0 108.0 91.0 93.0 86.0 82.0 100.0 121.0 123.0 56.0 66.0 72.0 90.0 43.0 106.0 85.0 102.0 108.0 100.0 116.0 74.0 54.0 80.0 79.0 67.0 83.0 107.0 133.0 128.0 113.0 149.0 130.0 124.0 118.0 108.0 119.0 91.0 87.0 95.0 76.0 88.0 89.0 83.0 96.0 95.0 94.0 61.0 78.0 86.0 76.0 71.0 80.0 113.0 131.0 136.0 112.0 104.0 108.0 120.0 139.0 124.0 137.0 142.0 73.0 81.0 81.0 79.0 76.0 87.0 108.0 94.0 88.0 110.0 114.0 18.3 13.0 16.7 14.0 23.3 21.0 9.0 18.3 18.3 25.0 19.3 16.7 30.7 25.0 18.7 18.3 21.3 16.7 23.7 22.0 26.0 34.0 49.0 33.0 13.0 32.0 31.0 22.0 29.0 33.0 33.0 31.0 45.0 39.0 30.0 53.0 35.0 30.0 57.0 30.0 33.0 15.0 16.0 15.0 40.0 50.0 55.0 33.0 28.0 21.0 12.0 45.0 36.0 27.0 28.0 2017 2018 Aug Sep Oct Nov Dec Jan Feb Mar 11 2 7 9 10 14 15 16 21 22 23 28 29 30 5 7 8 11 12 13 18 19 20 26 27 28 6 9 19 26 30 1 7 15 19 29 2 10 19 22 29 9 12 19 26 5 13 19 26 134.0 109.0 115.0 97.0 117.0 109.0 126.0 119.0 118.0 71.0 61.0 53.0 66.0 75.0 84.0 64.0 63.0 63.0 103.0 101.0 113.0 104.0 110.0 56.0 48.0 32.0 47.0 48.0 49.0 60.0 60.0 60.0 51.0 58.0 44.0 49.0 56.0 54.0 46.0 53.0 55.0 58.0 57.0 59.0 47.0 48.0 41.0 46.0 50.0 48.0 43.0 47.0 47.0 56.0 56.0 56.0 74.0 67.0 55.0 38.0 55.0 63.0 64.0 53.0 28.0 46.0 43.0 55.0 56.0 34.0 46.0 49.0 108.0 110.0 131.0 105.0 112.0 94.0 96.0 94.0 91.0 74.0 94.0 98.0 96.0 154.0 117.0 77.0 88.0 72.0 111.0 83.0 76.0 78.0 111.0 129.0 52.0 62.0 73.0 81.0 107.0 103.0 119.0 88.0 78.0 78.0 76.0 61.0 113.0 73.0 25.0 18.0 14.0 8.0 13.0 15.0 8.0 15.0 13.0 21.0 19.0 27.0 35.0 4.0 3.0 3.0 4.0 10.0 3.0 3.0 6.0 6.0 3.0 6.0 8.0 2.0 1.0 3.0 11.0 3.0 2.0 10.0 9.0 9.0 9.0 7.0 14.0 14.0 37.0 14.0 38.0 17.0 10.0 24.0 43.0 34.0 24.0 16.0 38.0 48.0 29.0 25.0 43.0 27.0 40.0 2018 Apr 9 109.0 77.0 16 75.0 57.0 26 54.0 42.0 30 89.0 60.0 May Jun Jul Aug Sep 7 14 21 29 4 5 6 11 12 13 18 19 20 25 26 27 2 3 6 9 10 12 16 17 18 23 24 26 30 31 1 6 7 8 13 14 15 20 21 22 27 28 29 1 1 1 1 1 6 7 0 2 3 8 9 111.0 91.0 79.0 85.0 78.0 79.0 58.0 63.0 99.0 105.0 99.0 139.0 118.0 106.0 117.0 102.0 101.0 108.0 115.0 123.0 65.0 62.0 67.0 80.0 77.0 80.0 81.0 76.0 79.0 84.0 85.0 84.0 124.0 128.0 106.0 98.0 95.0 127.0 146.0 130.0 129.0 105.0 118.0 113.0 100.0 120.0 79.0 83.0 82.0 69.0 70.0 85.0 83.0 83.0 81.0 95.0 88.0 83.0 76.0 82.0 110.0 97.0 78.0 108.0 88.0 99.0 94.0 128.0 125.0 110.0 100.0 107.0 106.0 77.0 69.0 65.0 86.0 112.0 82.0 73.0 95.0 93.0 86.0 88.0 92.0 90.0 113.0 128.0 146.0 134.0 111.0 122.0 59.0 90.0 90.0 96.0 105.0 112.0 100.0 105.0 38.0 51.0 32.0 18.0 12.0 29.0 33.0 12.0 21.0 22.0 34.0 43.0 32.0 59.0 41.0 26.0 36.0 26.0 22.0 24.0 30.0 39.0 45.0 45.0 24.0 29.0 25.0 42.0 63.0 47.0 48.0 10.0 30.0 30.0 24.0 38.0 33.0 28.0 13.0 22.0 -24.0 17.0 21.0 33.0 32.0 24.0 12.0 15.0 16.0 23.0 32.0 41.0 22.0 11.0 17.0 21.0 39.0 2018 Sep 20 91.0 61.0 24 107.0 85.0 25 107.0 86.0 26 93.0 87.0 2019 Oct Nov Dec Jan Feb Mar Apr May Jun Jul 5 9 17 23 29 5 13 20 26 3 11 17 26 4 7 14 23 28 4 13 18 26 4 11 20 25 5 9 17 22 30 6 13 20 28 3 4 5 10 12 14 17 18 19 24 26 27 100.0 113.0 87.0 93.0 84.0 95.0 101.0 74.0 80.0 59.0 97.0 59.0 90.0 51.0 75.0 46.0 64.0 73.0 86.0 111.0 72.0 83.0 67.0 101.0 48.0 61.0 103.0 89.0 85.0 95.0 91.0 59.0 53.0 60.0 59.0 57.0 111.0 99.0 67.0 83.0 65.0 68.0 55.0 52.0 78.0 91.0 102.0 88.0 58.0 61.0 63.0 64.0 103.0 78.0 81.0 83.0 106.0 69.0 66.0 54.0 52.0 65.0 87.0 85.0 109.0 101.0 60.0 58.0 71.0 72.0 109.0 111.0 117.0 45.0 84.0 96.0 98.0 88.0 107.0 109.0 107.0 116.0 78.0 73.0 74.0 38.0 55.0 67.0 73.0 68.0 75.0 77.0 74.0 75.0 2 120.0 77.0 3 121.0 78.0 5' 119.0 77.01 8 112.0 75.0 30.0 22.0 21.0 6.0 5.0 12.0 13.0 13.0 25.0 22.0 13.0 26.0 -22.0 19.0 10.0 24.0 22.0 44.0 36.0 25.0 36.0 34.0 46.0 31.0 12.0 31.0 20.0 30.0 39.0 24.0 34.0 12.0 27.0 31.0 41.0 27.0 27.0 38.0 29.0 31.0 38.0 43.0 7.0 29.0 29.0 25.0 20.0 32.0 32.0 33.0 41.0 43.0 43.0 42.0 37.0 2019 Jul 2020 Aug Sep Oct Nov Dec Jan Feb 11 109.0 68.0 12 111.0 75.0 15 104.0 78.0 17 107.0 77.0 18 112.0 82.0 23 116.0 83.0 24 99.0 73.0 25 91.0 65.0 29 99.0 83.0 30 95.0 79.0 31 109.0 81.0 5 7 8 12 13 14 20 21 22 26 27 28 4 5 6 9 10 11 18 19 20 24 25 26 4 9 15 22 29 4 13 20 25 4 9 16 26 31 8 15 23 27 105.0 103.0 107.0 113.0 100.0 103.0 114.0 92.0 113.0 80.0 93.0 102.0 86.0 74.0 81.0 91.0 90.0 83.0 87.0 74.0 87.0 73.0 82.0 84.0 107.0 98.0 110.0 121.0 138.0 121.0 118.0 101.0 108.0 122.0 117.0 134.0 88.0 90.0 96.0 104.0 105.0 97.0 95.0 93.0 101.0 105.0 102.0 99.0 115.0 111.0 104.0 81.0 90.0 106.0 103.0 98.0 71.0 83.0 78.0 105.0 103.0 90.0 60.0 80.0 83.0 72.0 85.0 98.0 73.0 89.0 91.0 61.0 74.0 57.0 58.0 67.0 101.0 75.0 118.0 88.0 66.0 57.0 76.0 56.0 5 98.0 72.0 13 80.0 52.0 41.0 36.0 26.0 30.0 30.0 33.0 26.0 26.0 16.0 16.0 28.0 19.0 29.0 26.0 22.0 10.0 20.0 27.0 18.0 26.0 7.0 11.0 18.0 19.0 8.0 14.0 17.0 33.0 24.0 23.0 8.0 7.0 17.0 15.0 35.0 9.0 8.0 6.0 10.0 7.0 18.0 25.0 20.0 18.0 24.0 24.0 16.0 31.0 24.0 35.0 18.0 42.0 32.0 26.0 28.0 2020 Feb 18 80.0 59.01 25 91.0 64.0 Mar Apr May Jun Jul Aug 4 9 18 25 1 7 15 21 27 5 13 21 26 2 3 4 8 9 10 16 17 19 22 23 24 29 30 1 7 8 10 13 14 16 21 22 23 27 29 30 3 4 5 11 12 13 17 19 20 24 25 28 84.0 92.0 93.0 74.0 98.0 95.0 74.0 91.0 97.0 70.0 68.0 71.0 61.0 70.0 69.0 46.0 66.0 69.0 99.0 100.0 67.0 90.0 62.0 68.0 46.0 59.0 101.0 104.0 97.0 92.0 79.0 78.0 92.0 72.0 85.0 71.0 86.0 97.0 96.0 98.0 65.0 70.0 72.0 72.0 72.0 71.0 68.0 58.0 64.0 51.0 58.0 64.0 69.0 69.0 99.0 90.0 103.0 92.0 109.0 112.0 115.0 103.0 99.0 112.0 94.0 113.0 98.0 67.0 72.0 66.0 67.0 70.0 73.0 79.0 69.0 79.0 74.0 78.0 78.0 65.0 93.0 95.0 97.0 92.0 101.0 98.0 55.0 59.0 96.0 70.0 81.0 103.0 71.0 76.0 70.0 67.0 75.0 73.0 42.0 69.0 69.0 56.0 64.0 75.0 Sep 1 80.0 64.0 21.0 27.0 14.0 24.0 22.0 13.0 28.0 26.0 28.0 25.0 28.0 37.0 32.0 21.0 31.0 36.0 34.0 25.0 20.0 7.0 7.0 24.0 14.0 21.0 20.0 28.0 33.0 27.0 29.0 32.0 18.0 37.0 25.0 39.0 39.0 36.0 34.0 20.0 38.0 16.0 35.0 33.0 22.0 19.0 27.0 25.0 26.0 25.0 13.0 -10.0 27.0 14.0 17.0 28.0 16.0 2020 Sep 2 4 8 9 10 14 15 18 21 22 23 28 29 30 66.0 99.0 87.0 94.0 102.0 88.0 85.0 73.0 71.0 81.0 88.0 74.0 75.0 88.0 Oct 6 14 21 28 86.0 71.0 81.0 88.0 Nov 6 9 17 25 83.0 84.0 86.0 85.0 Dec 2 76.0 7 89.0 15 66.0 22 89.0 29 84.0 2021 Jan 7 101.0 12 93.0 19 90.0 26 74.0 Feb 1 78.0 9 89.0 17 65.0 24 96.0 47.0 64.0 77.0 77.0 82.0 72.0 70.0 59.0 57.0 64.0 68.0 58.0 63.0 66.0 70.0 51.0 71.0 61.0 70.0 69.0 59.0 67.0 55.0 62.0 51.0 61.0 59.0 64.0 63.0 65.0 65.0 59.0 72.0 46.OI 63.0J 19.0 35.0 10.0 17.0 20.0 16.0 15.0 14.0 14.0 17.0 20.0 16.0 12.0 22.0 16.0 20.0 10.0 27.0 13.0 15.0 27.0 18.0 21.0 27.0 15.0 28.0 25.0 37.0 30.0 25.0 9.0 19.0 17.0 19.0 33.0 Pretreatment Program Info Database for Program Name Two Rivers Utilities WWTP Name Long Creek Program Approval Date Pretreatment Status Region County NPDES Number NPDES Effective Date NPDES Expire Date POTW is Primary WWTP Design Flow mgd WWTP SIU's WWTP CIU's date Inactive 10/07/1983 Full MRO Gaston NC0020184 04/01/2017 01 /31 /2020 TRUE 16.0000 Program SIUs Program CIUs printed on: 8/20/2021 Stream Information 7Q10 Flow cfs / mgd IWC % at 7Q10 18.52 109+ / 70.41 1Q10 Flow cfs / mgd 88.92 / 57.47 Stream Classification WS-V Basin Number CTB36 Receiving Stream Name SOUTH FORK CATAWBA Last PAR Rec 03/01/2021 Current Fiscal 01/15/2020 Year PCI Done Last Audit on 07/07/2017 % Design mgd is SIU permitted 22 8 Date Next Due Date Received by DWR Date Approved Adopt Date Required Date Adopted 18.84 PAR Due Date 03/01 /2022 Audit Year Nex121/22 Permitted SIU flow (mgd) [Pt_SIU) 3.014 mercury 1631 required yes HWA LTMP � IWS SUO 08/28/2020 07/30/2019 09/06/2019 06/30/2025 06/26/2020 09/17/2020 12/06/2012 12/27/2012 12/04/2012 ERP .000 02/03/2020 02/05/2020 � 1 Info in this Box from Pt Contacts PT_Pro g.Prime Formal Name Phonel ext Fax Date Date Date Attended Attended Attended HWA Wksp IUP Wksp PAR Wksp Mr. David Shellenbarger (Prim 11704-842-5106 1704-922-0619 11 4/11/2019 15/22/2019 I I davids@tworiversutilities.com WWT Asst. Division Manager PO Box 1748 28053 Cody Austin I 11704-866-6738 1 1704-922-0619 11 4/11/2019 15/22/2019 I 1 /29/2020 codya@tworiversutilities.com Pretreatment Coordinator 3000 Old Spencer Mountain Road 28034 Mr. Michael Alexander (Prim 11704.854.6672 1 1704.922.0619 11 1/30/2020 I 11/29/2020 I mikea@tworiversutilities.com Pretreatment Supervisor 3000 Old Spencer Mountain Road 28034 Stephanie Scheringer I 11704-866-6726 1 1704.922.0619 II I I I WWT Division Manager Chris English I 11(704) 866-6058 1 1(704) 922-0619 II I I chrise@tworiversutilities.com Pretreatment Coordinator 3000 Old Spencer Mountain Road 28034 J JPretreatment Related NOVs from DWQ DWR Central Office Contact DWR Regional Contact Vivien Zhong IWes Bell Pretreatment Program Info Database for Program Name Two Rivers Utilities WWTP Name Long Creek Program Approval Date Pretreatment Status Region County NPDES Number NPDES Effective Date NPDES Expire Date POTW is Primary WWTP Design Flow mgd 10/07/1983 Full MRO Gaston NC0020184 04/01/2017 01 /31 /2020 TRUE 16.0000 WWTP SIU's 15 Program SIUs date Inactive printed on: 12/22/2020 • Last PAR Rec Current Fiscal Year PCI Done Last Audit on HWA Date Next Due Date Received by DWR 08/28/2020 Date Approved Adopt Date Required Date Adopted Stream Information 7010 Flow cfs / mgd 1Q10 Flow cfs / mgd Stream Classification Basin Number Receiving Stream Name IWC % at 7Q10 18.52 109+ / 70.41 88.92 / 57.47 WS-V CTB36 SOUTH FORK CATAWBA 02/24/2020 01/15/2020 07/07/2017 LTMP 07/30/2019 09/06/2019 PAR Due Date03/01/2021 Audit Year Next21/22 IWS 06/30/2025 06/26/2020 09/17/2020 mercury 1631 required yes 12/06/2012 02/03/2020 12/27/2012 02/05/2020 12/04/2012 i Info in this Box from Pt Contacts PT_Pro g.Prime Formal Name Phonel Mr. David Shellenbarger'Prim 11704-842-5106 davids@tworiversutilities.com If ext Fax Date Date Date Attended Attended Attended HWA Wksp IUP Wksp PAR Wksp 1704-922-0619 II 4/11/2019 15/22/2019 I WWT Asst. Division Manager PO Box 1748 28053 Cody Austin ' 11704-866-6738 codya@tworiversutilities.com 1704-922-0619 II 4/11/2019 15/22/2019 11 /29/2020 Pretreatment Coordinator 3000 Old Spencer Mountain Road 28034 Mr. Michael Alexander 'Prim 11704.854.6672 mikea@tworiversutilities.com 1 1704. 922.0619 II 1 /30/2020 I 11 /29/2020 I Pretreatment Supervisor 3000 Old Spencer Mountain Road 28034 Stephanie Scheringer ' 11704-866-6726 I 1704.922.0619 11 WWT Division Manager 1 I I Chris English 704-866-6058 chriseAtworiversutilites.com 704-922-0619 HWA-1/30/2020 1UP-5/22/2019 Pretreatment Coordinator 3000 Old Spencer Mountain Rd, 28034 JPretreatment Related NOVs from DWQ DWR Central Office Contact DWR Regional Contact Vivien Zhong (Wes Bell N 0 MONITORING REPORT(MR) VIOLATIONS for: Violation Action: % Subbasin: % Param Nam( Major Minor: REGION: Mooresville COUNTY: Gaston FACILITY: City of Gastonia - Long Creek WWTP NC0020184 F 5 W 0 Limit Violation VIOLATION ACTION VIOLATION TYPE H 2 J LL w O j I— CO zW 2 PARAMETER LOCATION J J H Proceed to NOD Proceed to NOD Proceed to NOD 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 rn rn rn E E E E E E E E E E E E E N -O N -O N -O = -O • -O • -O • -O • -O • -O • -O • -O • -O • -O • -O • -O -O a) aU aU aU a) E E E • E • E E E E E E E • E • E > -0 > -0 > -0 'X -0 'X -0 'X -0 'X -0 'X -0 'X -0 'X -0 'X -O 'X -O 'X -O 'X -O 'X -O 'X -O Q Q Q a) a) • a) • a) • a) a) a) a) a) a) a) • a) • a) _>, O O O Y X Y X t X > X > X • > X • > X • > X > X > X > X > X > X > X • > X • > X a�• w a�• w w —w —w =w =w =w =w —w —w —w —w —w —w —w O 7 co (p M I` M I-- co 0) M (0 co 4 c‘iO V IO tao co ( C• I• M• (0 (0 co — N • a)(0 N LC) — (0 V — (0 O co N 0) ap co • N N V V co () V V M M M co co N • N N co co co co co co co co co co co co co t` N N N N N N N N N N N N N N • rn rn rn rn rn rn rn rn rn rn rn rn rn rn rn E E E Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y a) a) a) a) a) a) a) a) a) a) a) a) a) a) a) a) a) a) a) a) a) a) a) a) a) a) a) a) a) a) a) a) X X X X X X X X X X X X X X X X Lo co co co Lo Lo Lo Lo Lo Lo Lo co Lo Lo Lo Lo 0) 0) 0) (0 (0 co co (0 r` r` r` r` co co co co (0 M O (0 I� M N- \ O 7 M N N 7 O O O O M — N N ✓ V V (0 (0 0) O C N t` coW 0) 0) O O O O O O O O O O O O O O U U U 7 7 7 7 7 7 7 7 7 7 7 7 7 N p a)p a)p a) • a) a) a) a) a) a) a) a) • a) a) a) a) :_ :_ro :_ 2' Q_ Q_ Q_ Q_ Q_ Q_ Q_ Q_ Q_ Q_ Q_ Q_ O E O N O N N +. N +. N +. a3 a3 a3 a3 a3 a3 a3 a3 a3 a3 a3 a3 a3 O O O O O O O O O O O O O N V N V N V F F F F F F F F F F F F F O g 0 g 0 g N ai ai ai a) a) a) a) a) N N N a) C C C C C C C C C C C C c • U in U (2) U 0 `O `O `O `O `O `O `O `O `O `O `O `O `O s s s s s s s s s s s s s m • m • m U U U U U U U U U U U U U .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. c c c c c c c c c c c c c c c c — • — • — — • — • — • — • — • — • — • — • — • — • — • — W W W w w w w W W w w W w w w w w W w w w w • w w w w w w w w w w 0 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 O 0) 0) 0) (.0 O O O (.0 I` I` I` I` co co co co Z F 0 0 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 2 W V V V (0 (0 0) 0 N - N I— co co co 0) O c O O O O O O — — O - O O O O O O O 2 N 0 as 0 0 Q N MONITORING REPORT(MR) VIOLATIONS for: Violation Action: % Subbasin: % Param Nam( % Major Minor: REGION: Mooresville COUNTY: Gaston FACILITY: City of Gastonia - Long Creek WWTP NC0020184 F 5 w a Limit Violation VIOLATION ACTION VIOLATION TYPE FREQUENCY 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 Proceed to NOD Proceed to NOD 0 0 E E E E E E E E E E E E E E z z E E E E ate) E ate) E a.) 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O O O O O O O O O O 0 C 0 0 O 2 N 0 MONITORING REPORT(MR) VIOLATIONS for: Violation Action: % Subbasin: % Param Nam( % Major Minor: REGION: Mooresville COUNTY: Gaston FACILITY: City of Gastonia - Long Creek WWTP NC0020184 1- 5 W a VIOLATION ACTION VIOLATION TYPE PARAMETER LOCATION Proceed to NOD Frequency Violation Chlorine, Total Residual O O N ri O TWNLVERS ILITIES We are TR U to our customers! May 8, 2018 Mr. Mike Templeton Wastewater Permitting Section Department of Environmental Quality/DWR 1617 Mail Service Center Raleigh, NC 27699-1617 COp TWO R1VERs t_rTIL1TIE5 (TRU) P.O. Box 1748 Gastonia, NC 28053-1748 infot4 tworiversutilitieK.corn woriversutilit+es.com RE: Request for Revision to NPDES Permit NC0006033 to Add Supplemental Nutrient Allocation Dear Mr. Templeton: As has previously been discussed, the City of Gastonia requests that NPDES Permit NC0006033 (Eagle Road Wastewater Treatment Plant) be modified to include supplemental nutrient allocation that the City of Gastonia is purchasing from Lowell Investments I, LLC (NPDES Permit NC0005274). The City of Gastonia and Lowell Investments I, LLC have entered into an agreement on December 27, 2017 for the purchase of Lowell Investment I, LLC's total allocation of 144 Ibs/day of total nitrogen and 7.6 Ibs/day of total phosphorus. An executed copy of this agreement is attached. Per earlier discussions, our understanding is that this allocation can be added to permit NC0006033 by listing it in as supplemental allocation. We understand this allocation would not become part of the active allocation until there is an expansion of the flow limit for the facility. Also from our earlier discussions, we understand that this revision will be considered a "Major Permit Modification" and therefore have included a check to NCDEQ for the amount of $1,030.00 to cover this fee. We appreciate DEQ's assistance with this permit request. Please let us know if there is anything additional needed from us to complete this request. Sincerely, r Stephanie Schering'er Division Manager Wastewater Treatment cc: Mr. David Shellenbarger, Assistant WWTD Manager Compliance Enclosures: Purchase Contract between City of Gastonia and Lowell Investments I, LLC Check # 134793 to NCDEQ Certified Mail: 7014 0150 0002 0276 0913 o-,eIgt0(4'1 STATE OF NORTH CAROLINA COUNTY OF GASTON PURCHASE CONTRACT THIS PURCHASE CONTRACT (hereinafter referred to a "Contract"), entered into this 2 7 +A\ day of Oc , , 6 , 2017, by and between LOWELL INVESTMENTS I, LLC, hereinafter referred to as the "Seller"; and CITY OF GASTONIA, a North Carolina Municipal Corporation, hereinafter referred to as "Buyer"; WITNESSETH: WHEREAS, Seller is the owner of a nutrient discharge allocation under the Lake Wylie TMDL 1995 Catawba River Basin Wide Water Quality Management Plan consisting of 144 lbs/day of Total Nitrogen and 7.6 lbs/day of Total Phosphorus (the "Total Allocation") as evidenced by NPDES Permit #NC0005274; and, WHEREAS, Seller's NPDES Permit is scheduled to be terminated in early 2018; and, WHEREAS, the Total Allocation will be eliminated upon the termination of Seller's NPDES Permit unless the Total Allocation is transferred to another active NPDES Permit; and, WHEREAS, the North Carolina Division of Water Resources of the Department of Environmental Quality has acknowledged that the Total Allocation can be transferred from Seller's NPDES Permit #NC0005274 to be held in reserve for Buyer's NPDES Permit #NC0020184 until such time as the Total Allocation would need to be activated by Buyer in order to accommodate an increase in the nutrient limits currently approved for Buyer's NPDES Permit, as evidenced by a letter from Michael E. Templeton, P.E. dated NO\KJn6e \U , 2017, attached hereto and incorporated herein by reference; and, WHEREAS, Buyer has no immediate need to increase Buyer's nutrient limits; however, Buyer has determined that it would be in the best interest of its utility service rate payers to acquire the Total Allocation to be held in reserve until such time as Buyer realizes a need to increase Buyer's nutrient limits; and, WHEREAS, Buyer and Seller have agreed that it would be in their mutual best interests to enter into an agreement whereby the elimination of the Total Allocation will be avoided by transferring the Total Allocation to be held in reserve under Buyer's NPDES Permit, with Buyer having the option to activate the Total Allocation for Buyer's use at such time as Buyer requires an increase in Buyer's nutrient limits under Buyer's NPDES Permit; NOW, THEREFORE, in consideration of the foregoing recitals, the mutual promises and covenants contained herein, and the payments from Buyer to Seller referred to below, the receipt and sufficiency of which are hereby acknowledged, the Buyer and Seller agree as follows: Agree1560 1. Purchase. Subject to the terms hereof and in consideration of the sum of two thousand dollars ($2,000.00) paid by Buyer to Seller (the "Option Money"), Seller hereby sells to Buyer the Total Allocation for the sole purpose of having the Total Allocation held in reserve under Buyer's NPDES Permit. 2. Option to Activate the Total Allocation. In further consideration of the payment of the Option Money, Buyer hereby grants to Seller the exclusive option to obtain from the State of North Carolina an activation of the Total Allocation as part of the nutrient limits Buyer is permitted to discharge under Buyer's NPDES Permit (hereinafter the "Option"). The period during which Buyer may exercise the Option shall commence upon the date of execution of this Purchase Contract and shall continue and exist for a period of fifteen (15) years (the "Option Period"). The Option Period may be extended by Buyer for two additional five (5) year Option Periods by providing Seller with written notice of Buyer's intent to extend the Option Period at least 30 days prior to the expiration of the then current Option Period. 3. Transfer of Total Allocation During Option Period. Upon execution of this Purchase Contract, Buyer and Seller shall jointly file a request with the North Carolina Wastewater Permitting Section of the Division of Water Resources of the Department of Environmental Quality to modify their respective NPDES Permits in order to transfer the Total Allocation under Seller's permit to Buyer's permit to be held as reserved allocation for Buyer's permit bubble limit during the Option Period. In the event that the transfer of the Total Allocation is not approved or cannot be accomplished for any reason, then this agreement shall terminate and Buyer shall be entitled to a full refund of the Option Money. In the event that the transfer of the Total Allocation is approved and accomplished but Buyer fails to exercise its option to activate the Total Allocation during the Option Period, or any extension thereof, Buyer's right to activate the Total Allocation shall terminate. 4. Exercise of Option. At any time during the Option Period, or any extension thereof, Buyer may exercise its option to activate the Total Allocation by written notice personally delivered to the Seller or deposited in the United States Mail, postage prepaid, registered or certified mail, return receipt requested, addressed to Seller at the notice address contained herein, or such other notice address as Seller may provide Buyer in writing after the initial execution of this agreement. 5. Additional Consideration Due Seller Upon Exercise of Option. Upon exercise of the Option by Buyer during the Option Period, or any extension thereof, the terms and conditions of such activation shall be as follows: (A) Additional Cash Payment. The Additional Cash Payment due Seller for the activation of the Total Allocation by Buyer shall be two hundred thousand dollars ($200,000.00), payable to Seller at closing. In the event that Buyer does not exercise the Option within five (5) years from the date of execution of this Purchase Agreement, the amount of the Additional Cash Payment shall increase by a percentage equal to the percentage increase in the Consumer Price Index, if any, during that time period between five years from the date of execution of this Purchase Agreement and the date that the Option is exercised by Buyer. Provided, however, that in no event shall the Additional Cash Payment exceed $ 2SD0 oc .00 Agreel560 (B) Closing. Upon exercise of the Option Buyer shall immediately request from the appropriate North Carolina regulatory authority written confirmation that the Total Allocation can and has been transferred to Buyer's NPDES permit and activated such that Buyer may increase Buyer's nutrient limits by an amount equal to the Total Allocation. The closing and payment of the Additional Cash Payment shall occur at the offices of the Buyer or at such other place in Gaston County, North Carolina as may be determined mutually by Buyer and Seller within ninety (90) days of receipt of written confirmation from the appropriate North Carolina regulatory authority that the Total Allocation has been permanently transferred to Buyer's NPDES permit and activated. The parties shall also execute and deliver at closing any other documents reasonably identified by Buyer and Seller as necessary or appropriate to complete and evidence the transaction contemplated hereby. (C) Conditions Precedent. The obligations and liabilities of the Buyer and Seller hereunder shall be in all respects conditioned upon satisfaction of each of the following conditions precedent. The failure of any condition precedent, unless waived, shall entitle either party, in addition to its other rights and remedies provided in this Purchase Contract, if any, to terminate this Purchase Contract on or before the Closing Date and upon such termination due to the failure of Seller to be able to complete the transaction, Buyer shall be entitled to a return of the Option Money. Termination by Seller due to Buyer's failure to be able to complete the transaction shall entitle Seller to retain the Option Money as liquidated damages. (i) Authorizations and Approvals. The Buyer shall have obtained the regulatory approval and Buyer shall have obtained assurances to its reasonable satisfaction that Seller has the requisite legal authority to complete the transaction contemplated herein. The Seller shall be satisfied as to the content and scope of Buyer's regulatory approval and that Buyer has the requisite legal authority to complete the transaction contemplated herein. (ii) No Change in Seller's Total Allocation. Seller shall hold and be able to transfer and/or Buyer shall be able to activate the entire Total Allocation offered. If, at the time of exercise of the Option, Seller does not hold or is not able to transfer, or Buyer is not able to activate, the entire Total Allocation offered, Buyer shall have the option, in Buyer's sole discretion, to either terminate this Contract and receive a full refund of the Option Money; or, to proceed to closing and purchase any smaller portion of the Total Allocation offered that Seller then holds and is able to transfer and/or Buyer is able to activate with the Additional Cash Payment being reduced by a percentage equal to the percentage by which the Total Allocation has been reduced. (iii) Change in Laws. There shall have been no change in statutes or regulations and no administrative or legal decision or opinion by any court or any administrative agency materially affecting Buyer's ability to acquire, hold, activate and use the Total Allocation offered by Seller for the purposes described herein, or affecting Seller's ability to transfer the Total Allocation offered. (iv) Accuracy of Representations and Warranties. All representations and warranties made by Buyer and Seller in this Contract shall be true and accurate in all material respects. Agree1560 (v) Change in or Elimination of the Lake Wylie TMDL. There shall be no change in the Lake Wylie TMDL, which would eliminate all or a portion of the Total Allocation, or prevent Buyer from activating all or a portion of the Total Allocation. Any such change in the Lake Wylie TMDL shall entitle Buyer to terminate this Purchase Contract with no further obligations or duties to Seller. (D) Representations and Warranties of Seller. To induce Buyer to enter into this Purchase Contract and to purchase the offered Total Allocation, Seller hereby makes the representations, warranties and covenants set forth in this paragraph, upon each of which Seller acknowledges and agrees that Buyer is entitled to rely and has relied. Seller has corporate power and authority to execute, deliver and perform its obligations under this Purchase Contract and this Purchase Contract has been duly authorized, executed and delivered by Seller, constitutes the valid and binding agreement of Seller and is enforceable in accordance with its terms. Seller is duly organized and validly existing under the laws of North Carolina and in good standing. The execution and delivery of and the performance by Seller of its obligations hereunder do not and will not contravene, or constitute a default under, any provisions of applicable law or regulation, or any agreement, judgment, injunction, order, decree or other instrument binding upon Seller or result in the creation of any lien or other encumbrance on any asset of Seller. To Seller's knowledge, there is no action, suit or proceeding pending or known to be threatened against or affecting Seller in any court or before any arbitrator or before any governmental body which: (a) in any manner raises any questions affecting the validity or enforceability of this Purchase Contract or any other agreement or instrument to which Seller is a party or by which it is bound and that is to be used in connection with, or is contemplated by, this Purchase Contract; (b) could adversely affect the ability of Seller to perform its obligations hereunder, or under any document to be delivered pursuant hereto; or (c) could adversely affect the offered Total Allocation or the use or purposes thereof. Seller has not filed a petition or an answer seeking reorganization or an arrangement with creditors or to take advantage of any insolvency or bankruptcy law. (E) Representations and Warranties of Buyer. To induce Seller to enter into this Purchase Contract and to sell the offered Total Allocation, Buyer hereby makes the representations and warranties set forth in this paragraph, upon each of which Buyer acknowledges and agrees that Seller is entitled to rely and has relied. This Purchase Contract has been duly executed and delivered by Buyer, constitutes the valid and binding agreement of Buyer and is enforceable in accordance with its terms. The execution and delivery of and the performance by Buyer of its obligations hereunder do not and will not contravene, or constitute a default under, any provisions of applicable law or regulation, or any agreement, judgment, injunction, order, decree or other instrument binding upon Buyer or result in the creation of any lien or other encumbrance on any asset of Buyer. (F) Seller's Covenants. Seller shall cooperate with and assist, and shall take no action that might impede, Buyer in obtaining the legal authorizations and regulatory approvals. Seller shall use commercially reasonable efforts to maintain and avoid loss of any of Seller's offered Total Allocation, and shall take no action that might reduce its value. In the event Seller becomes aware of any action or event that potentially may cause loss, totally or partially, of the offered Total Allocation, Seller shall promptly notify Buyer of such action or event. Agree 1560 (G) Buyer's Covenants. Buyer shall submit its request for the transfer of the Total Allocation to Buyer's NPDES permit immediately upon execution of this Purchase Contract; and Buyer shall submit its request for the activation of the Total Allocation for Buyer's NPDES permit immediately upon exercise of the Option and shall use its best efforts to obtain all legal and regulatory authorizations as soon thereafter as practically possible. The failure of the proper regulatory authority to issue the necessary approvals described herein shall not constitute an event of default for either party, but shall afford either party the ability to elect to terminate this Purchase Contract under sub -paragraph C hereof as an unsatisfied condition precedent. (H) Remedies on Default. In the event of a default or other failure to perform hereunder by Buyer of any of the terms, conditions and provisions of this Purchase Contract prior to closing, Seller, upon written notice to Buyer, may terminate this Purchase Contract, retain the Option Money and obtain from Buyer any reasonable costs incurred by Seller in connection with this transaction as liquidated damages and in full and complete satisfaction of any and all claims of damages or causes of action that Seller may have against Buyer. The parties hereby acknowledge that the actual damages of Seller would be difficult to ascertain. In the event of a default or other failure to perform hereunder by Seller of any of the terms, conditions and provisions of this Contract prior to closing, Buyer, upon written notice to Seller, may terminate this Contract and receive from Seller a refund of the Option Money plus any additional costs incurred by Buyer in connection with this transaction as liquidated damages. The parties hereby acknowledge that the actual damages of Buyer would be difficult to ascertain; except that, in the event Seller sells or otherwise transfers to a person or entity other than Buyer all or any part of the offered Total Allocation during the Option Period or after receiving from Buyer notice that Buyer is exercising the Option Seller refuses to transfer the offered Total Allocation, Buyer may seek through a proceeding in equity specific performance of Seller's obligations under this Contract. 6. Notice. For purposes of the Option and Contract, every notice or other communication required herein shall not be effective unless the same shall be in writing and delivered personally to either party or mailed by United States mail, Registered or Certified, postage prepaid, return receipt requested, and if intended for Buyer, shall be addressed or personally delivered to: City Manager City of Gastonia P.O. Box 1748 Gastonia, NC 28053-1748 and if intended by Seller, shall be addressed and personally delivered to: 1Dty, Mt- 1, ; ;oiC 5320 O\6 Q;t\QAM1.2 d C \0W,i k)C- 2a 2X 7 Notice to either Buyer or Seller shall be deemed effective from the time the same is deposited in the United States Post Office, in an envelope, postage prepaid, addressed to either of the parties herein. Agree1560 7. Entire Agreement. The parties acknowledge this writing to constitute the entire agreement between the parties and no amendment to the terms hereof shall be effective unless in writing and signed by the parties. 8. Assignment. This Option and Contract may not be assigned by either party without the written consent of the other party. 9. Severability. The invalidity or unenforceability of any terms or provisions hereto in any jurisdiction shall in no way affect the validity or enforceability of any of the other terms or provisions in that jurisdiction, or of the entire Agreement in any other jurisdiction. 10. Governing Law. This Agreement shall be deemed to have been made in the State of North Carolina, and its validity, construction and effect shall be governed by the laws of the State of North Carolina. The parties hereto agree that any action brought by either party to enforce the terms of this Agreement shall be filed in the Superior Court of Gaston County, State of North Carolina. Agree1560 IN WITNESS WHEREOF, the parties hereto have, by authority duly given, caused the Option and Contract to be executed as their official act the day and year first above written. Cif Gastonia By: Attest: By:Pub/tit A.-Dumai,60,„6 (Deputy) C y Clerk D. Bridgeman, Mayor STATE OF NORTH CAROLINA COUNTY OF GASTON I, and ice c £.uJen 1 a Notary Public of the aforesaid County and State, do here y certify that 5h iP yy, /4- �un a w personally appeared before me this day and acknowledged that she is life (Deputy) City Clerk he City of Gastonia and that by authority duly given and as the act of the municipal corporation, the foregoing instrument was signed in its name by its Mayor, sealed with its corporate seal and attested by her as its (Deputy) City Clerk. WITNESS my hand and Notarial Seal, this the ' day of , 20 I'7. q vp G/?, rotary Pu • is My Commission Expires: 6) i a•ifc NOTAp 20 coMMISS MY -C c ON EXPIRES 73 Agree1560 STA I b OF NORTH CAROLINA COUNTY OF GASTON a Notary Public of aforesaid County and State, do hereby certify that Y i this day and acknowledged that he is the / •► North Carolina Limited Liability Company and b authority duly given and as the act of the personally appeared before me of Lowell Investments I, LLC, a company, the foregoing instrument was signed in its name by him as its WITNESS my hand and Notarial Seal, this the 44'day of N OWA,ii.e7 20 My Commission Expires: Agree1560 R 193)20, �- tary Public •s v;A .Z' Notary Public � C) Mecklenburg County — My Comm. Exp. 09-23-2622 - %////„ hl {C A g , `\`\, -a ... PLrcr_ People. Promise. Contract Approvals/Certificates CONTRACT: 20180061 -PURCHASE OF WASTEWATER NUTRIENT ALLOCATION Approved as to form: Z.L449_1‘,4_, 12/12/2017 3:41:43PM This instrument has been preaudited in the manner required by the Local Government Budget and Fiscal Control Act, Article 3, Chapter 159 of the General Statutes of North Carolina. ("„,.e.t 12/27/2017 2:59:33PM .iliation Inquiry Summary Number: 237025392812 Account Name: CITY OF GASTONIA GENERAL ACCOUNTS PAYABLE ACCOUNT Bank ID: 053000196 GASTON ACCOUNTING DNISION PO BOX 1748 GASTONIA. NC 28063-1748 1wgammon:hesegad Fmdmagd in amen. rep..+a DvNeua OO*, era Bda�Y eM FN. Cueol Act PAY Two Thousand Dollars and No Cents TO THE ORDER OF LOWELL INVESTMENTS I, LLC 5320 OLD PINEVILLE ROAD CHARLOTTE, NC 28217 RAMe5M&: axarow xo NC NUMMI 111385 101/05/2018 132469 NECI(ANOUNT ;: 32.00600 01y Menem ua0 13 2469ua 1:0530001961: 23 70 2539 281 21P -. - .we}¢c1�' Flm Commanyemg ; 7FIC,5 • 502B32738001000 Check Details Check Number: Account Number: Account Name: Bank ID: 132469 237025392812 CITY OF GASTONIA GENERAL ACCOUNTS PAYABLE ACCOUNT 053000196 Amount: 2,000.00 Issue Date: 01/05/2018 Paid Date: 07/03/2018 Payee: LOWELL INVESTMENTS I, LLC 1 Bank ofAmeric:. Merrill Lynch .iliation Inquiry Summary Number: 237025392812 Account Name: CITY OF GASTONIA GENERAL ACCOUNTS PAYABLE ACCOUNT Bank ID: 053000196 Electronic Endorsement Information Bank ofAmeric: Merrill Lynch BOFD - Bank Of First Deposit Bank Name: FIRST COMMUNITY BANK (BOFD) Date: 07/03/2018 R/T:51501299 Sequence Number: 5015058460 Bank Name: BANK OF AMERICA, NA Date: 07/03/2018 R/T: 111012822 Sequence Number: 004492627995 Bank Name: FEDERAL RES BANK OF ATLANTA Date: 07/05/2018 R/T: 61000146 Sequence Number: 3615260732 2 Water Resources ENVIRONMENTAL QUALITY November 14, 2017 Mr. David Shellenbarger Assistant Division Manager, Compliance Two Rivers Utilities P.O. Box 1748 Gastonia, North Carolina 28053-1748 ROY COOPER Governor MICHAEL S. REGAN Secretary LINDA CULPEPPER Interim Director Subject Proposed Transfer of Lowell Investments' Nutrient Allocations Long Creek WWTP NPDES Permit NC0020184 Gaston County Dear Mr. Shellenbarger: I have reviewed your September 12, 2017, outline of a potential agreement between Two Rivers Utilities (TRU) and Lowell Investments for the transfer of nutrient allocations from the Lowell Investments facility, NC0005274, to your Long Creek WWTP. In accordance with the 1995 Lake Wylie Nutrient TMDL, Lowell Investments holds allocations of 144 lb/day of total nitrogen (TN) and 7.6 lb/day of total phosphorus (TP). I believe that, in most respects, the outline provides a satisfactory framework for the transfer of these allocations. The Division of Water Resources could transfer the allocations to your Long Creek facility in accordance with an acceptable sales agreement between the parties. The transfer would be implemented by adding the allocations to the Nutrient Allocations special condition of the Long Creek permit. The allocations would initially be designated as 'reserve' but could be activated in the future to increase the facility's nutrient limits, consistent with the Lake Wylie Nutrient TMDL. Please note that the contract must transfer ownership of the allocations to TRU immediately rather than merely provide an option for their future purchase. Each facility's nutrient allocations are associated with its NPDES permit; thus, upon termination of Lowell Investments' permit (expected in early 2018), any allocations it still holds will be eliminated and no longer available to the company or to Two Rivers. As we discussed, the parties may be able to craft a contract that executes the sale up front but defers payment until TRU needs to apply the allocations. In addition, the proposed 25-year duration of the agreement is excessive, given that significant changes in the 1 ake Wylie nutrient strategy could occur in that time. A 10- to 15-year term, with the option to extend in 5-year increments, seems a more reasonable approach. State of North Carolina I Environmental Quality I Water Resources 1617 Mad Service Center I Raleigh, North Carolina 27699-1617 919 807 6300 Proposed Transfer of Lowell Investments' Nutrient Allocations November 14, 2017 In response to your question, TRU does not in any way assume responsibility or liability for the Lowell Investments site as the result of its purchase of the nutrient allocations. Feel free to contact me at (919) 804-6402 or mike.templeton@ncdenr.gov if you have any questions. Sincerely, Michael E. Templeton, P.E. Water Quality Engineer Enclosure: Proposed Option for Purchase Structure (TRU) Copies: NPDES Files Central Files eCopies: Tom McKittrick, Lowell Investments I, LLC Wes Bell, Mooresville Regional Office 2 Outline of possible Lowell InvesLuients-Two Rivers Utilities agreement (David Shellenbarger, TRU, 9/12/2017 email to Templeton): Proposed Option for Purchase Structure: 1. The City of Gastonia will agree to pay Lowell Investments $XXXXX for an option to purchase the phosphorus and nitrogen Threshold Management Plan allocation from the site at 1602 N Main Street, Lowell. At any time prior to the expiration of this agreement, the City may purchase this allocation in its entirety for the sum of $XXXXX. 2. Lowell Investments and the City of Gastonia will request to modify their respective NPDES Permits such that 100% of the phosphorus and nitrogen allocation currently in the Lowell permit will be transferred to NPDES Permit NC0020184 for the City of Gastonia's Long Creek WVVTP. 3. Until this purchase is completed, Lowell Investments will retain ownership of the nitrogen and phosphorus allocation, but it will be temporarily transferred to the City of Gastonia with an option to purchase and will be listed as Reserved Allocation for the Eagle Road and Long Creek Bubble Limit within NPDES Permit NC0020184. 4. The transaction shall be structured as a purchase option with a term of 25 years. If the option has not been exercised the end of this term, the parties shall agree to negotiate in good faith on a renewal. In the event no renewal agreement can be reached, the City agrees to request removal of the subject reserve allocation from its NPDES permit(s). 5. If the 1995 Lake Wylie Threshold Management Plan is reopened in a manner that does not preserve this reserve allocation, the City of Gastonia is not obligated for any further compensation to Lowell Investments. 6. In the event the City of Gastonia does not utilize the Lowell Investments Allocation, no cost shall be incurred by the City of Gastonia. Obligations of Lowell Investments • Submit to NCDEQ a permit rescission letter requesting the structure outlined above. Obligations of the City of Gastonia • Submit to NCDEQ a permit modification requesting the structure outlined above. • Provide Lowell Investments notification and a report of any activation of the allocation in the permit and any usage of the allocation in any monthly monitoring period o Provide Lowell access to the City of Gastonia discharge data (DMRs) as needed. NOTE: "Threshold Management Plan" refers to the Lake Wylie TMDL. CITY OF GASTONIA, NORTH CAROLINA TWO RIVERS UTILITIES PHARR YARNS, LLC SANITARY SEWER SERVICE UTILITY AGREEMENT THIS SANLTARY. SEWER SERVICE UTILITY AGREEMENT (this "Agreement"), made and entered into the 4141lay of 2013 (the "Effective Date"), by and between the City of Gastonia, a North Carolina municipal corporation, h einafter referred to as "City" or "TRU", and Pharr Yarns, LLC, a North Carolina limited liability company, hereinafter referred to as "Customer" ("City", "TRU" and "Customer" are sometimes hereinafter referred to as "Party" or the "Parties" collectively); WITNESSETH: That in consideration of, and subject to, the terms and conditions hereinafter set forth, the parties covenant and agree as follows: 1. Purchase and Sale. Customer agrees to buy wastewater treatment services from TRU, and TRU agrees to sell wastewater treatment services to Customer on the terms and conditions set forth in this Agreement. The wastewater treatment services being sold by TRU shall at all times meet the standards for treatment of wastewater as promulgated pursuant to the terms of the Clean Water Act at 33 USCA Sections 1251 through 1387, all as amended from time to time, which standards have been adopted by the State of North Carolina Department of Health, Environment, and Natural Resources, Division of Water Quality, under which standards TRU treats wastewater at its wastewater treatment plants. TRU shall be the sole provider of wastewater treatment services to Customer; provided, however, if TRU fails to provide the Maximum Capacity or Maximum Flow Rate (defined in Section 8 herein), in addition to its other remedies, Customer may contract with another provider or construct its own facilities or otherwise provide cover to address the excess; provided further, if Customer's wastewater'treatment needs exceed the Maximum Capacity or Maximum Flow Rate, Customer may contract with another provider or construct its own facilities or otherwise provide cover to address the excess. 2. Term. (a) This Agreement shall be effective from and after the Effective Date and shall continue and remain in full force and effect for a period of twenty-five (25) years from and after the date upon which wastewater is first treated for Customer pursuant to the terms of this Agreement (the "Commencement Date"). During the ninety (90)-day period beginning on the date twenty-two (22) years from and after the Commencement Date, TRU may give notice to the Customer of its desire to renew this Agreement for another twenty-five (25) year term, and upon the giving of such notice, the Parties hereto shall negotiate in good faith with reference to a renewal of this Agreement based upon the same terms and conditions contained in this Agreement, including the Applicable Rate (defined herein). (b) If for any reason; (i) the infrastructure described in Paragraph 4 is not constructed, (ii) City fails to receive grant funds from the North Carolina Clean Water Management Trust Fund, or (iii) the City fails to receive a loan from the State Revolving Loan fund bearing an interest rate of zero percent (0%), this agreement shall terminate. 3. Contribution by Customer. Within sixty (60) days after the completion and approval of surveys as set forth in subsection 3(e), Customer or one or more of its affiliates shall: (a) Convey to TRU marketable fee simple title to such real property as necessary for the construction of a wastewater treatment pump station to TRU. The real property conveyed shall be of the size and location substantially as shown in Exhibit A which is attached hereto and incorporated by reference. The real property to be conveyed shall not exceed one (1) acre and will be located surrounding the existing wastewater treatment plant operated by the Town of McAdenville. (b) Convey to TRU easements for gravity and force sewer mains, lines and appurtenances over and across the real property shown on Exhibit B which is attached hereto and incorporated herein by reference. The easements to be conveyed shall be substantially in the locations shown on Exhibit B provided however, that should topographical or engineering constraints require the realignment of such easements, the City shall submit a map showing the requested realignment to Customer for its approval, which approval shall not be unreasonably withheld. If Customer does not respond to such submittal within 15 days, the proposed alignment shall be deemed to be approved. (c) Convey to TRU such temporary slope and construction easements for and during the period of construction as shall be reasonably requested by TRU for the construction of the Project as described in Section 4. Such easements shall expire no later than the date that is (6) months after the Project Completion Date. (d) All permanent easements conveyed pursuant to this paragraph shall be at least thirty (30) feet in width unless TRU determines that some lesser width is appropriate. If two sewer lines must be located within the easement or if the sewer line is installed at a depth of more that twelve (12) feet, Customer shall convey an easement at least forty (40) feet in width. (e) Within six (6) months after the Effective Date, TRU shall have completed surveys of all of the areas described in subsections (a), (b) and (c) above and submitted same to Customer for its approval, which approval shall not be unreasonably withheld. If Customer does not respond to such submittal within fifteen (15) days, the proposed surveyed locations shall be deemed to be approved. 4. Construction of Additional Facilities. (a) TRU shall design and construct or contract for the design and construction of such sanitary sewer infrastructure as is necessary to convey wastewater from the existing Customer wastewater treatment plant to the existing TRU collection system ("Infrastructure") as shown on the map attached hereto as Exhibit C and incorporated herein by reference, pursuant to this Agreement. Prior to commencing any work on property owned by Customer, TRU shall notify Customer of the identity of all contractors with whom TRU has entered into contracts for completion of the Infrastructure, who will be entering Customer's property and the scope of work to be completed by such contractors. All construction shall be in compliance with applicable federal, state and local statutes, rules, regulations and ordinances. All construction of Infrastructure shall be completed in a good and workmanlike manner consistent with standards for similarly -situated facilities in North Carolina within thirty (30) months of the Effective Date ("Project Completion Date"). (b) Costs associated with the design and initial construction of the Infrastructure shall be the responsibility of TRU; provided, however, that TRU may enter into agreements with third parties concerning the funding of such costs. All contractors hired by TRU to perform work on property owned by Customer shall carry insurance as provided in Section 14 with respect to such construction activities and TRU shall provide certificates of such insurance to Customer. (c) Upon completion, the Infrastructure located from the connection point with TRU's existing collection system up to and including the manifold point, as shown on Exhibit C, shall belong to TRU and become a part of its wastewater collection and treatment system. Upon completion, TRU shall have completed as -built plans showing the actual location of all portions of the Infrastructure, and TRU will provide a copy of such as -built plans to Customer. The remainder of the Infrastructure shall belong to Customer and shall be maintained and operated by Customer. (d) As soon as possible after the Commencement Date but in no event more than three months after the Commencement Date, TRU shall commence repair of any damages and restore Customer's property in a good and workmanlike manner so that the disturbed areas are substantially in the same condition existing prior to commencement of work. Such repair and restoration work shall be completed by the earlier of 6 months after the Commencement Date or the Project Completion Date. (e) Prior to construction of the metering point, TRU shall submit a representation of the proposed exterior appearance of said metering point to Customer for Customer's approval. If Customer does not respond to such submittal within fifteen (15) days, the proposed exterior appearance shall be deemed to be approved. 5. Decommissioning of Existing Plant. (a) TRU shall contract for the decommissioning and demolition of Customer's existing wastewater treatment plant, consisting of basins, buildings and associated equipment ("Plant") as shown on Exhibit D which is attached hereto and incorporated herein by reference, and pay any costs associated therewith except as hereinafter provided. TRU shall be responsible for all costs related to the disposal of materials resulting from the decommissioning and demolition provided that such materials can be disposed of by land application or in a lined landfill. To the extent that any materials require disposal in any other manner, including without limitation, a hazardous waste landfill, Customer shall reimburse TRU for all costs related to such disposal in excess of the costs TRU would have incurred had the materials been disposed of by land application or in a lined landfill. (b) Any contract entered into by TRU for the demolition of the basins shall provide that basin concrete shall be demolished and removed to a point three feet below pre -demolition grade and openings shall be placed at the bottom of each basin to provide for groundwater control. Remaining concrete shall be allowed to remain place. TRU shall provide and place sufficient clean fill on the Plant site to bring the property up to proper grade as set forth in subsection 5(c) but shall not be responsible for the compaction of such fill. Customer shall contract for the placement and compaction of the fill to the level that Customer deems appropriate. Customer hereby releases and holds TRU, its officers, employees, and agents harmless from against any and all liability, actions, debts, claims, and demands of every kind whatsoever, specifically including any claim for negligence or negligent acts or omissions, arising from or related to the portions of the concrete basins allowed to remain in place and the manner and level of compaction of fill as described herein. (c) All decommissioning and demolition work shall be performed in a good and workmanlike manner by licensed and qualified contractors in compliance with applicable federal, state and local statutes, rules, regulations and ordinances. All decommissioning and demolition work shall be commenced not later than three (3) months after the Commencement Date and be completed by the Project Completion Date. Upon completion of the decommissioning and demolition, the grade level of the property shall reflect the most efficient grading necessary to drain the site. (d) Any equipment located in the Plant shall be disposed of by TRU or TRU's contractor as part of the demolition and decommissioning. Customer shall be responsible for removing all other equipment located outside of the Plant. (e) TRU shall submit an invoice, including supporting documentation, to Customer for any costs for which Customer is responsible, which shall be due and payable within 30 days after submission. 6. Operation of System. TRU shall operate and maintain its wastewater collection and treatment system consistent with all state and federal laws and in as efficient a manner as possible consistent with standards generally observed in North Carolina by operators of similarly -situated facilities. TRU shall remedy any failures in said system with all possible dispatch. In the event of an extended inability to furnish sewage treatment services at the volumes set out herein, the services to Customer shall be maintained in the same proportion of the total services remaining after the reduction that it was entitled to before such reduction. 7 Price of Wastewater Treatment. TRU will bill and Customer will pay to TRU, on a monthly basis for all metered wastewater discharged to TRU's wastewater system from Customer, an amount equal to the prevailing rate for nonresidential customers inside the City as set forth on the then -current published Water and Sewer Rate Schedule, and such schedule is revised and published from time to time by TRU (hereinafter, the "Applicable Rate"). Monthly billing shall be defined as TRU's ongoing billing cycle for the area in which the meter involved is located. 8. Maximum Capacity and Maximum Flow Rate. TRU shall provide capacity for Customer to have a maximum monthly wastewater flow of 15,000,000 gallons per month (the "Maximum Capacity"). Wastewater flows shall not exceed a maximum instantaneous flow of 1,215 gallons per minute (the "Maximum Flow Rate"). The Maximum Capacity may be reviewed from time to time during the term of this Agreement and may be revised through written amendment to the Agreement. In the event Customer exceeds the Maximum Capacity, TRU shall have the right to increase the rate charged to Customer for the amount of wastewater treated which exceeds the Maximum Capacity, said charge not to exceed 1.9 times the then -current Applicable Rate. 9. Minimum Wastewater Flow Limit. (a) Except as provided in subsections (b) and (c) of this Section, TRU shall bill Customer for treatment of a minimum amount of wastewater flow of 2,500,000 gallons per month ("Minimum Gal/Month") whether or not such wastewater flow amount is delivered by Customer each month during the term of this Agreement. The Minimum Gal/Month may be reviewed from time to time during the term of this Agreement and may be revised through written amendment to the Agreement as provided for hereinafter. On or before January 30 of each year of the term of this Agreement, TRU shall determine the total amount of wastewater measured by the metering point or points serving both Customer and the Town of McAdenville for each month of the previous calendar year or portion thereof ("Total Cumulative Monthly Flow"). TRU shall provide Customer with an annual report showing the total amount by which the Cumulative Monthly Flow exceeds 3,400,000 gallons ("Excess Monthly Flow"), plus any Excess Monthly Flow remaining from prior years. So long as there is a balance of Excess Monthly Flow, Customer shall only be required to pay for the actual metered wastewater flow rather than the Minimum Gal/Month, provided however, that the balance of Excess Monthly Flow shall be reduced by difference between the actual metered flow and the Minimum Gal/Month for any month that the actual metered flow is less than the Minimum Gal/Month. Nothing in this paragraph shall be construed to allow the Customer to pay for less than the actual metered flow. Attached hereto as Exhibit E is an illustration of how the Parties intend the credits to work in practice. (c) If at any time during the term of the Agreement, the Customer and the Town of McAdenville have been billed and paid for wastewater treatment services for a cumulative total of 742,000,000 gallons, Customer shall for the remainder of the term of this Agreement be billed only for the actual amount discharged into TRU's system and shall no longer be subject to the Minimum Gal/Month as set forth in subsection (a) above. (b) 10. Equalization of Wastewater Flow. Customer shall be required to equalize wastewater flows delivered to the TRU's system at a flow rate based upon the wastewater flow limits established in its Significant Industrial User Permit from time to time. 11. Invoicing. Bills for wastewater treatment supplied hereunder shall be rendered and paid monthly. A "month" shall mean the period between any two regular consecutive billing period readings of the meter measuring the quantity of wastewater flow in the TRU's system. 12. Significant Industrial User. Customer shall be, in the same manner as all other significant industrial users of the sanitary sewer system of TRU, subject to all provisions of City's Sewer Use and Industrial Pretreatment Ordinance ("Ordinance") in effect at the time of execution of this Agreement and as they may be amended from time to time. Customer shall administer its own industrial pretreatment program. Notwithstanding its status as a significant industrial user, Customer shall be subject to the Applicable Rate as set forth in Section 7, provided, however, that Customer shall be subject to any surcharges, fees or penalties assessed for violations of or noncompliance with the Ordinance or Customer's significant industrial user permit. 13. Use of Wastewater Treatment Plant Capacity. During the term of this Agreement, TRU will provide to Customer wastewater treatment up to the Maximum Capacity. At such time, however, that Customer utilizes 12,000,000 gallons per month (80% of 15,000,000) of such Maximum Capacity for six consecutive billing periods, TRU and Customer agree to negotiate in good faith a higher Maximum Capacity. In the event TRU must expand its wastewater facilities in order to provide such higher flow limit to Customer, Customer agrees to pay for its proportionate share of the costs of the expansion at the time TRU incurs those costs associated with the expansion necessary to provide such higher flow to Customer. 14. Insurance. During the period beginning on the Effective Date and ending on the Project Completion Date, TRU shall maintain commercial general liability insurance which shall provide coverage for bodily injury and property damage (except automotive equipment) in the following limits of liability: For bodily injury and property damage; $1,000,000.00 each occurrence with an aggregate limit of not less than $3,000,000.00.A11 contractors hired by TRU to perform work on property owned by Customer shall maintain insurance policies, including without limitation, a commercial general liability policy, in such amounts as are generally required by the City of Gastonia for construction projects of a similar size and complexity. TRU shall require any contractor hired to perform work on property owned by Customer to name Customer as an additional insured on the contractor's commercial general liability policy. 15. Force Majeure. In the event either TRU or Customer is unable, in whole or in part, by reason of force majeure to carry out its obligations, other than to make payments for wastewater treatment services received, it is agreed that on giving notice of such force majeure as soon as possible after the occurrence of the cause relied upon, then the obligation of TRU or Customer, so far as each may be affected by such force majeure, shall be suspended from performance hereunder during the continuance of any inability so caused, but for no longer period, and such cause shall as far as possible, be remedied with all due speed. The term "force majeure" shall mean acts of God, strikes, lockouts or other industrial disturbances, acts of public enemy, war blockades, riots, landslides, droughts, storms, floods washouts, arrests and restraints of governments and people, civil disturbances, explosions, inability to obtain rights -of -way or permits or materials and equipment and supplies, and any other cause not within control of TRU or Customer, which by the exercise of reasonable diligence by TRU or Customer, is not preventable. 16. Waivers. Neither the failure nor delay on the part of either Party hereto to exercise any right, power or privilege hereunder shall operate as a waiver thereof, nor shall any single or partial exercise of any other right, power or privilege, and no custom or practice at variance with the terms of the Agreement shall constitute a waiver of the right of either Party to demand exact compliance with such terms. 17. Invalid Terms. Should any one or more of the provisions contained in this Agreement be held invalid, illegal, or unenforceable in any respect, the validity, legality and enforceability of the remaining provisions contained in this Agreement shall not in any way be affected or impaired thereby, and this Agreement shall otherwise remain in full force and effect. 18. Assignment. Neither party may assign this Agreement without the prior written consent of the other party which consent shall not be unreasonably withheld except that Customer will have the right without the consent of TRU to transfer or assign this Agreement to any affiliate of Customer or any other person or entity which controls, is controlled by or is under common control with Customer, or to any entity which succeeds Customer by merger or consolidation, or to any entity which Customer is converted into, or to any entity which acquires the goodwill and substantially all of the other assets of Customer. 19. Controlling Law/Successors Bound. This Agreement and the rights and obligations of the parties hereunder shall be construed and interpreted in accordance with the laws of the State of North Carolina and shall be binding upon and inure to the benefit of the successors and, with consent of the other party, the assigns of either party hereto. 20. Counterparts. This Agreement may be executed in any number of counterparts, each of which when so executed and delivered shall be deemed an original. 21. Notices. Any notices required or permitted in this Agreement, including address changes, shall be made in writing and shall be made either by mailing registered or certified mail, return receipt requested, and postage prepaid, to the other party at the address shown herein for that party or at such different address for that party, notice of which has been properly given hereunder, or by personally delivering such a notice to an officer or other party. The notice, if mailed as provided for herein, shall be deemed given on the day of receipt or refusal to accept receipt, and if personally delivered, on the date of delivery. The addresses are as follows: TO TRU: Director of Two Rivers Utilities City of Gastonia P.O. Box 1748 Gastonia, NC 28053 TO CUSTOMER: Pharr Yarns, LLC 100 Main Street McAdenville, NC 28101 Attn: President 22. Entire Agreement. This Agreement reflects and contains the entire and only agreement between the parties relating to the subject matter herein, and as such supersedes all negotiations, commitments, undertakings and agreements, whether oral or otherwise. 23. Amendments. This Agreement may be amended only by an instrument in writing executed by both parties hereto. 24. Dispute Resolution. In addition to and prior to litigation, the parties shall endeavor to settle disputes first by negotiation between the parties, and, if negotiation is unsuccessful, then by non -binding mediation. Demand for mediation shall be filed in writing with the other party to this Agreement. A demand for mediation shall be made within a reasonable time after the claim, dispute or other matter in question has arisen. In no event shall the demand for mediation be made after the date when institution of legal or equitable proceedings based on such claim, dispute or other matter in question would be barred by the applicable statute of repose or limitations. Each party hereto submits to the exclusive jurisdiction in the state and federal courts having jurisdiction in Gaston County, North Carolina and irrevocably waives any defenses to such venue including any defense based upon the principles of forum non conveniens. List of Exhibits Attached to This Agreement: Exhibit A — Property to be Conveyed in Fee Exhibit B — Location of Easements to be Conveyed Exhibit C — Location of Infrastructure Exhibit D — Pharr Yarns' Existing Wastewater Treatment Plant Exhibit E — Calculation of Credits [Signature(s) appear on the following page(s)] IN WITNESS WHEREOF, the undersigned have caused the Agreement to be executed in their behalf by individuals duly authorized, all as of the day and year first above written. '�_S 0' .....,.. .0,# •,..' CITY' GASTONIA, NORTH CAROLINA ?C j s y s SEAL ; By: .A/AP.-. . . 'R , John-1 Brid;lman, Mayor APPROVED AS TO FORM: (SEAL) PHARR YARNS, LLC By: William P. Carstarphen, President (Remainder of page intentionally;eft blank) STATE OF NORTH CAROLINA COUNTY OF GASTON 1, Re ji r a 1.�:Ism h41ips , a Notary Public of the aforesaid County and State, do hereby certify that \.% i r9 n • e. L. CreiR h+vlti personally appeared before me this day and acknowledged that she is the City Clerk of the City oMastonia and that by authority duly given and as the act of the municipal corporation, the foregoing instrument was signed in its name by its Mayor, sealed with its corporate seal and attested by her as its City Clerk. WITNESS my hand and Notarial Seal, this the 9 day of "S}- , 2013. \�\\\;`S oN ///// • 142 "41tgiL,. , A ,i � yam% Nota4av Public My Commission Expires: 3.11.101$ STATE OF NORTH CAROLINA COUNTY OF ,Cra.s f'Dn i 0 NOTARY N __ PUBLIC — llllllll I, 6 n A es, . J er k I ins , a Notary Public of the County and State aforesaid, certify that w i 11 i A rrn P. Cars far p i .. , personally appeared before me this day and acknowledged that s/he is n (`F_ s, �g r of Pharf Yarns, LLC., a limited liability company, and that by authority duly given and as the i act of the company, the foregoing instrument was signed in its name by him/her. WITNESS my hand and Notarial Seal, this 3D day of -u. 1 1 , 2013. My Commission Expires: )Y\a r _k /%, / Agree1308 \\\\ \c IIIIJ E NA. i,�� NOTAR PUBLIC . %.i. otary Public EXHIBIT A Real Property Description [see attached map — legal description to be drafted from survey] BELMONT LAND & INVESTMENT CO 3585056470 ELMONT LAN 3 BELMONT LA • & INV .TMENT CO 85057 .5 CATA NVES ENT CO 5 41910 Legend Proposed Pump Station Parcel Proposed Easement Parcels Owner PHARR YARNS LLC BELMONT LAND & INVESTMENT CO STOWE MILLS INC WESLEYAN DEVELOPMENT LLC MCADENVILLE TOWN OF LOWELL TOWN OF Parcels BELMONT LAND & INVESTMENT CO 3585141910 NVILLE TOWN 0 3585140559 WESLEYAN DEVELOPMENT LLC 3585133992 BELMONT LAND & INVESTMEN CO 3585049359 1 inch = 80 feet A LANDS CONSERVANCY 3585136474 Exhibit A EXHIBIT B Easements [see attached map — legal description to be drafted from survey] EXHIBIT C Location of Infrastructure [See attached Map] / • .10 Q �O= 1S`at ZS 113 / 11110. fiNis / • CO J w 11) 10 AWIM' as M31n3)1v t H h 0 o co ce o o O I=- ii p� o d 1S.1W30b0y y,e S O ' 4' %I oao./runs `4 K W ♦ ♦ ♦ ♦ ♦ ♦ S 4S:1,3.Hs co KC H ti Q-O U � U °rO y as 3 Er, Zs Proposed Sewer Mains Proposed Pump Station Parcel Proposed Easement Parcels 0 0 H 0 Z J w I- Z LI- w w 0 > a O n'S - C.)w O J p Z > H V) Z CO w w Z J 0 J CCg >- I-- g - < > cc O w w w - w - 0 ▪ a CO (/) 2 m LOWELL TOWN OF ci 0 0 0 0 0 0 W� j a2! 2l3WA2I8 • 2v p v� SN\\A-: P `zs A ���� Q� �zaKza VE 4 ACE SEVENTEENTH ST J� P asp Op b• NON S, co 2 o-v ♦ ♦ Proposed Forcemain ♦ • • X • ♦ •7M EXHIBIT D Pharr Yarns' Existing Wastewater Treatment Plant Upper Aerated Storage Basin (to be demolished in place) Proposed location of connection of existing forcemains (will require shutdown of roadway for a limited time) Lower Aerated Storage Basin (to be demolished in place) re` ."°"� .,.'� STOWE MILLS INC 3585050986 Storage Building (to be demolished in place) Solids Handling Building (to be demolished in place) Circular Clarifiers (to be demolished in place) Storage Buildings (2) (to be demolished in place) ` s Water Filtration Plant Inlet (to remain in service) Water Filtration Plant (to remain in service) Equipment Storage Area (Slab and any equipment not included decommissioning) 1 1 1 1 1 1 I f � 1 inch = 60 feet Legend • — Carolina Thread Trail =Proposed Easement Parcels RailRoads 100 Year Flood Pharr WWTP Chlorine Contact Chamber (to be demolished in place) Exhibit D EXHIBIT E Calculation of Credits [see attached Excel spreadsheet] CALCULATION OF CREDITS EXHIBIT E ILLUSTRATION - ASSUMES A JULY COMMENCEMENT DATE Month (a) (b) (a)+(b)=(c) (d) (c)-(d)=(e) (c)-(d)=(f) Pharr Town of if positive if negative Yarns McAdenville Total Monthly Monthly Cumulative Minimum Wastewater Wastewater Monthly Gallons / Earned Applied Available Flow Flow Flow Month Credit Credit Credit July Year 1 2,902,000 900,000 3,802,000 3,400,000 402,000 - August Year 1 3,675,000 932,000 4,607,000 3,400,000 1,207,000 - September Year 1 3,212,000 928,000 4,140,000 3,400,000 740,000 - October Year 1 3,860,000 931,000 4,791,000 3,400,000 1,391,000 November Year 1 4,263,000 887,000 5,150,000 3,400,000 1,750,000 - December Year 1 3,381,000 855,000 4,236,000 3,400,000 836,000 - 6,326,000 - 6,326,000 Credit carried forward to Year 2: 6,326,000 January Year 2 3,470,000 926,000 4,396,000 3,400,000 996,000 - February Year 2 3,558,000 929,000 4,487,000 3,400,000 1,087,000 - March Year2 3,841,000 833,000 4,674,000 3,400,000 1,274,000 - April Year2 3,550,000 935,000 4,485,000 3,400,000 1,085,000 May Year2 3,758,000 887,000 4,645,000 3,400,000 1,245,000 - June Year 2 3,822,000 902,000 4,724,000 3,400,000 1,324,000 - July Year2 2,902,000 1,265,000 4,167,000 3,400,000 767,000 August Year2 3,675,000 1,286,000 4,961,000 3,400,000 1,561,000 September Year2 3,212,000 1,292,000 4,504,000 3,400,000 1,104,000 October Year 2 3,860,000 1,288,000 5,148,000 3,400,000 1,748,000 November Year2 4,263,000 1,292,000 5,555,000 3,400,000 2,155,000 - December Year2 3,381,000 1,321,000 4,702,000 3,400,000 1,302,000 15,648,000 15,648,000 Credit carried forward to Year 3: 21,974,000 January Year 3 3,470,000 1,265,000 4,735,000 3,400,000 1,335,000 February Year 3 3,558,000 1,286,000 4,844,000 3,400,000 1,444,000 - March Year3 3,841,000 1,292,000 5,133,000 3,400,000 1,733,000 April Year 3 3,550,000 1,288,000 4,838,000 3,400,000 1,438,000 May Year3 2,758,000 1,292,000 4,050,000 3,400,000 650,000 June Year3 2,322,000 1,321,000 3,643,000 3,400,000 243,000 - July Year3 1,902,000 1,265,000 3,167,000 3,400,000 (233,000) (233,000) August Year 3 1,675,000 1,286,000 2,961,000 3,400,000 (439,000) (439,000) September Year 3 2,475,000 1,292,000 3,767,000 3,400,000 367,000 October Year3 2,235,000 1,288,000 3,523,000 3,400,000 123,000 November Year 3 2,450,000 1,292,000 3,742,000 3,400,000 342,000 - December Year3 1,381,000 1,321,000 2,702,000 3,400,000 - (698,000) (698,000) Total Cumulative Gallons 130,279,000 7,675,000 7,675,000 Credit carried forward to Year 4: 28,279,000 �0t 'DD1?-S8 NORTH CAROLINA GASTON COUNTY AMENDMENT TO SANITARY SEWER SERVICE UTILITY AGREEMENT THIS AMENDMENT TO SANITARY SEWER SERVICE UTILITY AGRREMENT (this "Amendment") is made and entered into the 1 1`4'1"day of skiA4U.S , 2017, by and between the City of Gastonia, a North Carolina municipal corption, hereinafter referred to as "City" or "TRU" and Pharr Yarns, LLC, a North Carolina limited liability company, hereinafter referred to as "Customer" ("City, "TRU" and "Customer" are sometimes hereinafter referred to as "Party" or "Parties" collectively). WITNESSETH: Whereas, City and Customer previously entered into that certain Sanitary Sewer Service Utility Agreement dated August 9, 2013 (the "Agreement"); and, Whereas, the Agreement provided, among other things, that the City would construct certain infrastructure within thirty months of the Effective Date of the Agreement; and, Whereas, due to changed circumstances, including, but not limited to, the failure to receive the funding specified in the Agreement, it became impossible for the infrastructure to be completed within the time stated in the Agreement and for the Parties to perform their respective obligations to each other as provided in the Agreement; and, Whereas, funding in reduced amounts have now been received; and, Whereas, the Parties wish to re -affirm the Agreement and proceed with the mutual covenants and obligations contained in the Agreement, except as amended herein; Now, Therefore, in consideration of the mutual covenants contained in this Amendment; and, in consideration of the terms and conditions set forth in the Agreement, as amended herein, the Parties covenant and agree as follows: A. Paragraph 3(c) of the Agreement is hereby amended by deleting the last sentence of said paragraph and replacing it with the following sentence: "Such easements shall expire no later than the date that is six (6) months after the infrastructure to be constructed by City has been completed." Agree1308a B. Paragraph 3(e) of the Agreement is hereby amended by deleting the first sentence of said paragraph and replacing it with the following sentence: "Within six (6) months after the date of this Amendment TRU shall have completed surveys of all of the areas described in subsections (a), (b) and (c) above and submitted same to Customer for its approval, which approval shall not be unreasonably withheld". C. Paragraph 4(a) of the Agreement is hereby amended by deleting the last sentence of said paragraph and replacing it with the following sentence: "All construction of Infrastructure shall be completed in a good and workmanlike manner consistent with standards for similarly -situated facilities in North Carolina within thirty (30) months of the date of this Amendment ("Project Completion Date")." D. Paragraph 5 of the Agreement is hereby amended by being deleted in its entirety and replacing it with the following paragraph: 5. Decommissioning of Existing Plant. "Customer shall contract for the decommissioning and demolition of Customer's existing wastewater treatment plant at Customer's cost. All decommissioning and demolition work shall be performed in a good and workmanlike manner by licensed and qualified contractors in compliance with all applicable federal, state and local statutes, rules, regulations and ordinances. All decommissioning and demolition work on the Customer's wastewater treatment plant shall be completed no later than (6) months after City has completed construction of the infrastructure referenced in this Agreement. Customer agrees to submit a written request to NCDEQ to rescind its NPDES permit as soon as City sewer is available and to provide a copy of same to the City. " E. All other terms and conditions of the Agreement are hereby ratified and confirmed by the Parties and the Parties agree to proceed with the fulfillment of their respective obligations under the Agreement, as amended, immediately upon the execution of this Amendment. IN WITNESS WHEREOF, the undersigned have caused this Amendment to be executed in their behalf by individuals duly a uttoi ads,, 11 as of the day and year first above written. Ab��,`� ofrAT% qtA d,''2,,�hoaP�4��, 17y , Attu (. P•,:„,��i CAB°4t :,��° D 0 411 Haiti _aiti Qua City Clerk Le,c�l City of Gastonia, North Carolina D. Bri e , Mayor Agree1308a Pharr Yarns, LLC By: William P. Carstarphen, Pisident STATE OF NORTH CAROLINA COUNTY OF GASTON I, 5t4 ztone 0re/35 , a Notary Public of the aforesaid County and State, do hereby certify that [ , ice Cp. biterOy , personally appeared before me this day and acknowledged that she is ���,,cjClerk of the City of Gastonia and that by authority duly given and as the act of the rui Waoxporation, the foregoing instrument was signed in its name by its Mayor, sealed with its corporate seal and attested by her as its City Clerk, Witness my hand and Notarial Seal, this the lleday of , 2017. My Commission Expires: l No at blic STATE OF NORTH CAROLINA COUNTY OF GASTON I, ir' i y j ,pen n In Notary Public of the County and State aforesaid, certify that William P. Carstarphen, pers ally appeared before me this day and acknowledged that s/he is President of Pharr Yarns, LLC., a limited liability company, and that by authority duly given and as the act of the company, the foregoing instrument was signed in its name by him/her. Witness my hand and Notarial Seal, this )d iay of A_Lx-Ti- , 2017. My Commission. Expires: A-t 15 - /31 otDt Agree1308a r ONI iv re fLreaP #rare.- i�.z:r' 3?uu��ka 3.:el-vA r promise. Supplemental Contract Approvals/Certificates CONTRACT: 201400/2 - UTILITY AGREEMENT- WWT FOR PHARR YARNS Approved as to form: "ref,z 8/11/2017 3:05:45PM This instrument has been preaudited in the manner required by the Local Government Budget and Fiscal Control Act, Article 3, Chapter 159 of the General Statutes of North Carolina. Scheringer, Stephanie From: Graham, Charles (Legal) Sent: Friday, December 18, 2020 1:46 PM To: Scheringer, Stephanie Subject: FW: Pharr Yarns Stephanie, See the email chain below. Pharr has the right to assign the SSSUA to an entity under the same control/ownership as Pharr Yarns so we can't object to the transfer. You will need to let me know what needs to happen to transfer the SIU as requested and I suppose billing should now be made to Selkirk. As soon as I Amy gives me an answer on who they deem to be the owner of the private collection system we will need to verify the state agrees and finish working toward that takeover. Charles L. Graham, Jr. Assistant City Attorney The City of Gastonia P.O. Box 1748 Gastonia, NC 28053-1748 Phone: (704) 866-6735 Fax: (704) 854-6607 Email: charlesg@cityofgastonia.com From: Graham, Charles (Legal) Sent: Friday, December 18, 2020 1:42 PM To: 'Rickers, Amy' <arickers@jahlaw.com> Cc: Kendall, Nick <nkendall@jahlaw.com> Subject: RE: Pharr Yarns Thank you for providing clarification on the assignment of the agreement. We will let you know what will be required in order to issue the SIU to Selkirk Realty, LLC. With regard to the private collection system, is Pharr or Selkirk now the owner? It also appears that with the property transfers that line now crosses properties owned by both Selkirk and Belmont Land and Investment. Is that correct? As we work through the transfer of that system we will need to accurately reflect the correct owner and secure the necessary easements from the correct property owners. Charles L. Graham, Jr. Assistant City Attorney The City of Gastonia P.O. Box 1748 Gastonia, NC 28053-1748 Phone: (704) 866-6735 Fax: (704) 854-6607 Email: charlesg@cityofgastonia.com From: Rickers, Amy [mailto:arickers@jahlaw.com] Sent: Friday, December 18, 2020 12:53 PM To: Graham, Charles (Legal) <charlesg@cityofgastonia.com> i Cc: Kendall, Nick <nkendall@jahlaw.com> Subject: RE: Pharr Yarns CAUTION: This email originated from outside of the organization. Do not click links or open attachments unless you recognize the sender and know the content is safe. Charles - If I understand your concern, you want to better understand who the customer is for the SSSUA. Pharr Yarns, LLC has assigned the rights and responsibilities under the SSSUA to Selkirk Realty LLC, an affiliated entity under common control with Pharr Yarns, LLC. IT seems that Selkirk Realty LLC would be the proper entity for billing and permitting. Please let me know if you need further information or wish to discuss further. Regards, Amy From: Graham, Charles (Legal) <charlesg@cityofgastonia.com> Sent: Monday, December 7, 2020 12:51 PM To: Rickers, Amy <arickers@jahlaw.com> Cc: Scheringer, Stephanie<stephanies@tworiversutilities.com>; Albright, Joe <JoeA@cityofgastonia.com> Subject: Pharr Yarns Amy, Our wastewater staff has received a request from representatives at Pharr to change the name on Pharr's SIU permit to Selkirk Properties, LLC. If a company simply changes its name then we would simply change the name on the permit. Since Selkirk is technically a separate legal entity it may be more involved than a simple name change. Based on your recent question regarding application of the flow from the private collection system and this name change request I would like to have some clarification. As you and I have discussed, we know the SSSUA between Pharr and Gastonia allows Pharr to assign the agreement to a related entity such as SelKirk. Has that assignment been made in whole or in part? We need to know which entity is our customer under that agreement and the SIU for several reasons. Also, since the SIU permit involves the privately owned collection system, and we have ongoing efforts to take ownership of that system we need to know which entity you now consider to be the owner of that system? Clarification on these points will help us better respond to the changes requested for the SIU, ensure we are billing the correct customer under the SSSUA and properly complete any transfer of the collection system to the City. Thank you, Charles L. Graham, Jr. Assistant City Attorney The City of Gastonia P.O. Box 1748 Gastonia, NC 28053-1748 Phone: (704) 866-6735 Fax: (704) 854-6607 Email: charlesg@cityofgastonia.com 2 Attachment A —Request for Missing Information Table 2. EPA Application Form 2A Missing Information 40 CFR 122.21(j)(1) 1.1 Email address of facility contact davids@cityofgastonia.com 1.2 Applicant email address stephanies@cityofgastonia.com 1.3 Email address of the organization transporting the discharge for treatment prior to discharge Not Applicable 1.4 Email address of the organization receiving the discharge for treatment prior to discharge Not Applicable 1.5 Do you intend to request or renew one or more of the variances with your NPDES permitting authority to determine what information Discharges into marine waters (CWA Section 301(h)) authorized at 40 CFR 122.21(n)? (Check all that apply. Consult needs to be submitted and when.) Water quality related effluent limitation (CWA Section 302(b)(2)) X Not applicable 1.6 Email address of contractor responsible for operational or maintenance aspects of the treatment works Not Applicable 40 CFR 122.21(j)(6) 1.7 Indicate the number of SIUs and NSCIUs that discharge to the POTW. Number of SIUs Number of ClUs 15 3 40 CFR 122.22(a) and (d) 1.8 Certification Statement I certify under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations. Name (print or type first and last name) Stephanie Scheringer Official title Division Manager Wastewater Treatment Signature Date signed 3/4/2021 Permit No, ; NC0020184 0utfall; 001 Annual Monitoring and Pollutant Scan Month: June Year: 2017 Facility Name : Long Creek WWTP ORC : Doug Barker Date of sampling : June 6, 2017 ( Total phenolics sampled 6-22-17 ) Phona: 704-566-6991 Analytical Laboratory : City of Gastonia, Crowders Creek Lab (NC#210) and Shealy Environmental Services Inc. (NC#329) Ammonia (as N) Chlorine (total residual, TRC) Dissolved Oxygen C0610 50060 Composite Grab SM4500 NH3 D SM4500 CL G 0.2 20 <0.2 Nitrite plus Nitrate Total (as N) Total Kjeldahl Nitrogen Oil and Grease Total Phosphorus 00300 Grab SM4500 0 G 0,1 <20 00630 00625 00556 Composite Composite Grab SM4500 NO3 F-NO2 SM4500 NORG C 1664B Total Dissolved Solids Hardness C0665 70295 Composite SM4500 P E Composite SM2540C-20 0.5 1.0 5.3 0,05 10 o f coovexa Antimony Arsenic Beryllium Cadmium Chromium Copper Lead 00900 Composite 01097 01002 01012 01027 SM2340C-20 Composite EPA 200.8 Composite Composite Composite EPA 200.8 EPA 200.8 EPA 200.8 10 1.0 1.0 1,0 1,0 01034 Composite EPA 200.8 1.0 01042 Composite EPA 200.8 1.0 8.9 1,5 1.7 .<5.3 0.3 230 mg/1 ug/1 mg/1 mg/1 mg/1 mg/I mg/ 1 rang/1 48 mg/I ug/1 1 2.6 <1.0 <1.0 Mercury (Method 1631E) Nickel Selenium Silver 01051 COMER 01067 Composite EPA 200.8 Composite Composite EPA 1613E EPA 200.8 1.0 1.0 1.0 3,3 3.2 <1.0 <1.0 01147 Composite EPA 200.8 1.0 Thallium Zinc 01077 Composite 01059 Composite EPA 200.8 EPA 200,8 1,0 1.0 Cyanide 01092 Composite EPA 200,8 10 Total phenolic compounds *** Sfol, ai�l,�e'�e Acrolein Acrylonitrile Benzene Bromoform 5 00720 32730 34210 Grab Grab Grab SM 4500 -CN EPA 420.4 EPA 624 0,010 0.005 5,0 5.8 <1.0 <1.0 <1.0 34.6 <0.010 0.0094 34215 Grab EPA 624 5,0 Carbon Tetrachloride Chlorobenzene ChlorodibromometYtane Chloroethane 2-chloroethyl vinyl ether Chloroform Dichlorobromomethane 1,1- dichloro ethane l,2-dichloroethane Trans-1,2-dichloroethylene 1,1-dichloroethylene 1,2-dichloropropane 34030 32104 32102 34301 34306 85811 34576 32106 32101 34496 32103 34546 Grab Grab Grab Grab Grab Grab Grab Grab Grab Grab Grab Grab EPA 624 EPA 624 EPA 624 1.0 1.0 1.0 EPA 624 EPA 624 EPA 624 EPA 624 EPA 624 1.0 1.0 2.0 5.0 1.0 <5.0 <5.0 <1.0 <1.0 6.4 <2.0 <5.0 34501 Grab EPA 624 EPA 624 EPA 624 EPA 624 EPA 624 1.0 1,0 1.0 1.0 1.0 1, 3-dichloropropylene Ethylbenzene 34541 Grab EPA 624 1.0 77163 Grab EPA 624 1.0 Methyl Bromide 34371 Grab EPA 624 1.0 34413 Grab EPA 624 2.0 20 12.0 <1.0 <1.0 <1,0 <1.0 <1,0 <1,0 <1.0 <2,0 „, ug/1 ug/1 ug/1 ug/1 ug/I ug/1 ng/1 ug/1 ug/I ug/1 ug/1 ug/1 nig/I mg/I ug/1 ug/1 ug/1 ug/1 ug/1 ug/1 ug/1 ug/I ug/ 1 ug/I ug/I ug/1 ug/I ug/1 ug/1 ug/1 ug/1 ug/l Form - DMR- PPA-1 ug/I Page 1 Annual IVlonitering and Pollutant Scan Permit No. : NC0020184 Outfall: 001 Month: June Year: 2017 44•Ata.., timm,,,,,,, „ ex imcter p004% ' 404. '7., ,t,, itivev,i,iytica1 VLethod„:„„ov6v0:::::,-,S...Eesult '#.0P;* :;;.' 'iii i: gl.Kits R•5fx: eifS*ViliCillt4 Methyl Chloride 34418 Grab EPA 624 2.0 <2.0 ug/1 Methylene Chloride 34423 Grab EPA 624 1.0 <1.0 ug/1 1,1,2,2-tetrachloroethane 81549 Grab EPA 624 1.0 <1,0 ug/1 Tetrachloroethylene 34475 Grab EPA 624 1.0 <1.0 ug/1 Toluene 34010 Grab EPA 624 1.0 <1.0 ug/1 1,1,1-trichloroethane 34506 Grab EPA 624 1.0 <1.0 ug/1 1,1,2-trichloroethane 34511 Grab EPA 624 1.0 <1,0 ug/I Trichloroethylene 39180 Grab EPA 624 LO <1.0 ug/1 Vinyl Chloride 39175 Grab EPA 624 1.0 <1.0 ug/1 trans-1,3-Dichloropropene ** 34699 Grab EPA 624 1.0 <1.0 ug/1 rligg1400MW4440§MageganSMW-MiggnalikhgaW,Pgga...40A.M41.0,4::MON:: P-chloro-m-creso 34452 Grab EPA 625 1.6 <1.6 ug/1 2-chlorophenol 34586 Grab EPA 625 1.6 <1,6 ug/1 2,4-diehloropheno1 34601 Grab EPA 625 1.6 <1.6 ug/1 2,4-dirnethylphenol 34606 . Grab EPA 625 1.6 <1.6 ug/1 4,6-dinitro-o-cresol 34657 Grab EPA 625 8,0 <8.0 ug/1 2,4-clinitropbenol 34616 Grab EPA 625 8.0 <8.0 ug/1 2-nitrophenol 34591 Grab EPA 625 3.2 <3.2 ug/1 4-nitrophenol 34646 Grab EPA 625 8.0 <8.0 ug/1 Pentacblorophenol 39032 Grab EPA 625 8.0 <8.0 ug/1 Phenol 34694 Grab . EPA 625 1.6 <1.6 ug/1 2,4,6chlorophenol 34621 Grab EPA 625 1.6 <1.6 ug/1 #411figaig4*C44012•StanigegtattataltiernMs-MaiiM Vallagnategn Acenaphthene 34205 Grab EPA 625 1.6 <1.6 ug/1 Acenaphthylene 34200 Grab EPA 625 1.6 <1.6 ug/1 Anthracene 00220 Grab EPA 625 1.6 <1.6 ug/1 Benzidine 39120 Grab EPA 625 8.0 <8.0 ug/1 Benzo(a)anthracene 34526 Grab EPA 625 1.6 <1.6 ug/I Benzo(a)PYrene 34247 Grab EPA 625 1.6 <1.6 ug/1 3,4 benzolluoranthene 34230 Grab EPA 625 1.6 <1.6 ug/1 Benzo(ghi)perylene 34521 Grab EPA 625 1.6 <1.6 ug/1 Benzo(k)fluoranthene 34242 Grab EPA 625 1.6 <1.6 ug/1 Bis (2-chloroethoxy) methane 34278 Grab EPA 625 1.6 <1.6 ug/1 Bis (2-ehloroethyl) ether 34273 Grab EPA 625 1.6 <1.6 ug/1 Bis (2-chloroisopropyl) ether 34283 Grab EPA 625 1.6 <1.6 ug/1 Bis (2-ethylhexyl) phthalate 39100 Grab EPA 625 1.6 <1.6 ug/1 4-bromoplien.ylphenyl ether 34636 Grab EPA 625 1.6 <1.6 ug/1 Butyl benzyl phthalate 34292 Grab EPA 625 1.6 <1.6 ug/1 2-chloronaphthalene 34581 Grab EPA 625 1.6 <1.6 ug/1 4-ehlarophenyl phenyl ether 34641 Grab EPA 625 1.6 <1.6 ug/1 Chrysene 34320 Grab EPA 625 1.6 <1.6 ug/1 Di-n-butyl phthalate 39110 Grab EPA 625 1.6 <1.6 ug/1 Di-n-octyl phthalate 34596 Grab EPA 625 1.6 <1.6 ug/1 Dibenzo(a,h)anthracene 34556 Grab EPA 625 1.6 <1.6 ug/1 1,2-dichlorobenzene 34536 Grab EPA 625 1.6 <1.6 ug/1 1,3-dichlorobenzene 34566 Grab EPA 625 1.6 <1.6 ug/1 1,4-diehlorobenzene 34571 Grab EPA 625 1.6 <1.6 ug/1 3,3-dichlorobenzidine 34631 Grab EPA 625 8.0 <8,0 ug/1 Diethyl phthalate 34336 Grab EPA 625 1.6 <1.6 ug/1 Dimethyl phthalate 34341 Grab EPA 625 1.6 <1.6 ug/1 Form - DMR- PPA-1 Page 2 Annual Monitoring and Pollutant Scan Permit No. ; NC0020184 Outfall: 001 Month: June Year: 2017 y .;s f r #g�D,,^'h�.^x�,.r.,:.��.. �r r . CE,n< a, ...:r.nCw`ae :..� PaYaxneter � (iil[i. .... Sane ie ' ri .^ w pe ...z-x.,�4 � ....Y:'".,.u.s.xe,.`�I,?�`:�'...'."'.N.,:c.�r'',-�?,. t '� �.kty�H,�--r r k: c 7]{}s 6 Ct LOt.y n..:✓=...: Quantitatiou :. C B9C� a., ...,.'..va Sauip ev. r *`)'..i ,.jr�"4. ' ' Su rv--'G .... ,..;£r:rsc-.t.-;,„; I V i rrf� w-y ez �r @RSUrCYYl+�.tlf 2,4-dinitrotoluene 34611 Grab EPA 625 3.2 <3.2 ug/1 2,6-dinitrotoluene C0626 Grab EPA 625 3.2 <3.2 ug/1 1,2-diphenylhydrazine 34346 Grab EPA 625 1.6 <1,6 ug/1 Fluoranthene C0376 Grab EPA 625 1.6 <1.6 ug/1 Fluorene 34381 Grab EPA 625 1.6 <1.6 ug/1 Hexachlorobenzene C0700 Grab EPA 625 1.6 <1.6 ug/1 Hexachlorobutadiene 39702 Grab EPA 625 1.6 <1.6 ug/1 Hexachlorocyclo-pentadiene 34386 Grab EPA 625 8,0 <8.0 ug/1 Hexachloroethane 34396 Grab EPA 625 1.6 <1.6 ug/1 lndeno(1,2,3-cd)pyrene 34403 Grab EPA 625 1.6 <1.6 ug/1 Isophorone 34408 Grab EPA 625 1.6 <1.6 ug/1 Naphthalene 34696 Grab EPA 625 1.6 <1.6 ug/1 Nitrobenzene 34447 Grab EPA 625 1.6 I <1.6 ug/1 N-nitrosodi-n-propylamine 34428 Grab EPA 625 1.6 <1.6 ug/1 N-nitrosodimethylamine 34438 Grab EPA 625 1.6 <1.6 ug/1 N-nitrosodiphenylamine 34433 Grab EPA 625 1.6 <1.6 ug/1 Phenanthrene 34461 Grab EPA 625 1.6 <1.6 ug/1 Pyrene 34469 Grab EPA 625 1.6 <1,6 ug/1 1,2,4,-trichlorobenzene 34551 Grab EPA 625 1.6 <1.6 ug/1 ** Additional parameter run per method 624, *** Total phenolic compounds sampled 6-22-17 "I certify, under penalty of law, that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person or persons who managed the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fines and imprisonment for knowing violations." Authorized Represen ative name 7na ae re V/7 Form - DMR- PPA-1 Page 3 Annual Monitoring and Pollutant Scan Permit No.: NC0020184 Outfall: 001 Month: September Year: 2018 Facility Name : Long Creek WWTP Date of sampling : September 14, 2018 Analytical Laboratory : City of Gastonia, Crowders Creek Lab (NC#210) and Shealy Environmental Services Inc. (NC#329) ORC : Doug Barker Phone : 704-866-6991 =...v�J 1 ramete pie "�.- •Banat - .-" ... di - E k r 0 1 tll0 "° -'bi°.. ,"' '. oar ®ua a►nmP o e xp1'Y 080 r- X3 U i�{' �A$ _ 1!en ' Ammonia (as N) C0610 Composite SM4500 NH3 D 0.2 <0.2 mg/1 Chlorine (total residual, TRC) 50060 Grab SM4500 CL G 20 <20 ug/1 Dissolved Oxygen 00300 Grab SM4500 0 G 0.1 9.8 mg/1 Nitrite plus Nitrate Total (as N) 00630 Composite SM4500 NO3 F-NO2 0.5 3.8 mg/1 Total Kjeldahl Nitrogen 00625 Composite SM4500 NORG C 1,0 <1.0 mg/1 Oil and Grease 00556 Grab 1664E 5.3 <5.7 mg/1 Total Phosphorus C0665 Composite SM4500 P E 0.05 0.21 mg/1 Total Dissolved Solids 70295 Composite SM2540C 25 230 mg/1 Hardness 00900 Composite SM2340C 10 39 mg/1 Antimony 01097 Composite EPA 200.8 1.0 <1.0 ug/1 Arsenic 01002 Composite EPA 200.8 1.0 <1.0 ug/1 Beryllium 01012 Composite EPA 200.8 1.0 <1.0 ug/1 Cadmium 01027 Composite EPA 200.8 0.5 <0.5 ug/1 Chromium 01034 Composite EPA 200.8 1.0 2.2 ug/1 Copper 01042 Composite EPA 200.8 1.0 2.3 ug/1 Lead 01051 Composite EPA 200.8 1.0 <1.0 ug/1 Mercury (Method 1631E) COMER Composite EPA 1613E 1.0 <1.0 ng/1 Nickel 01067 Composite EPA 200.8 1.0 1.6 ug/1 Selenium 01147 Composite EPA 200.8 1.0 1.4 ug/1 Silver 01077 Composite EPA 200.8 1.0 <1.0 ug/1 Thallium 01059 Composite EPA 200.8 1.0 <1.0 ug/1 Molybdenum*** 01062 Composite EPA 200.8 1.0 24.2 ug/1 Zinc 01092 Composite EPA 200.8 10 42.6 ug/1 Cyanide 00720 Grab SM 4500-CN 0.010 0.012 mg/1 Total phenolic compounds 32730 Grab EPA 420.4 0.005 <0.005 mg/1 0 a : ili p • e. a .. _ ._ , e . Acrolein 34210 Grab EPA 624 5.0 <5.0 ug/1 Acrylonitrile 34215 Grab EPA 624 5.0 <5.0 ug/1 Benzene 34030 Grab EPA 624 1.0 <1.0 ug/1 Bromoform 32104 Grab EPA 624 1.0 7.3 ug/1 Carbon Tetrachloride 32102 Grab EPA 624 1.0 <1.0 ug/1 Chlorobenzene 34301 Grab EPA 624 1.0 <1.0 ug/1 Chlorodibromomethane 34306 Grab EPA 624 1.0 9.1 ug/1 Chloroethane 85811 Grab EPA 624 2.0 <2.0 ug/1 2-chloroethyl vinyl ether 34576 Grab EPA 624 5.0 <5.0 ug/1 Chloroform 32106 Grab EPA 624 1.0 3.3 ug/1 Dichlorobromomethane 32101 Grab EPA 624 1.0 5.9 ug/1 1,1-dichloroethane 34496 Grab EPA 624 1,0 <1.0 ug/1 1,2-dichloroethane 32103 Grab EPA 624 1.0 <1.0 ug/1 Trans-1,2-dichloroethylene 34546 Grab EPA 624 1.0 <1.0 ug/1 1,1-dichloroethylene 34501 Grab EPA 624 1.0 <1.0 ug/1 1,2-dichloropropane 34541 Grab EPA 624 1.0 <1.0 ug/1 1,3--dichloropropylene 77163 Grab EPA 624 1.0 <1.0 ug/1 Ethylbenzene 34371 Grab EPA 624 1.0 <1.0 ug/1 Form - DMR- PPA-1 Page 1 Annual Monitoring and Pollutant Scan Permit No.: NC0020184 Outfall: 001 Month: September Year: 2018 AYrapietPF 4 ....6"_¢-..- . _ pr 0,9 e ., , Pa '4 � O 01 a u _ ... #� .., Methyl Bromide 34413 Grab EPA 624 2.0 <2.0 ug/1 Methyl Chloride 34418 Grab EPA 624 2.0 <2.0 ug/1 Methylene Chloride 34423 Grab EPA 624 1.0 <1.0 ug/1 1,1,2,2--tetrachloroethane 81549 Grab EPA 624 1.0 <1.0 ug/1 Tetrachloroethylene 34475 Grab EPA 624 1.0 <1.0 ug/I Toluene 34010 Grab EPA 624 1.0 <1.0 ug/1 1,1,1-trichloroethane 34506 Grab EPA 624 1.0 <1.0 ug/ 1 1,1,2-trichloroethane 34511 Grab EPA 624 1.0 <1.0 ug/1 Trichloroethylene 39180 Grab EPA 624 1.0 <1.0 ug/1 Vinyl Chloride 39175 Grab EPA 624 1.0 <1.0 ug/I 1,2-Dichlorobenzene** 34356 Grab EPA 624 1.0 <1.0 ug/1 1,3-Dichlorobenzene** 34566 Grab EPA 624 1.0 <1.0 ug/1 1,4-Dichlorobenzene** 34571 Grab EPA 624 1.0 <1.0 ug/1 Dichlorodifluoromethane** 34668 Grab EPA 624 2.0 <2.0 ug/1 cis-1,2-Dichloroethene** 77093 Grab EPA 624 1.0 <1.0 ug/1 1,2,4-Trichlorobenzene** 34551 Grab EPA 624 1.0 <1.0 ug/1 Trichlorofluormeth.ane** 34488 Grab EPA 624 1.0 <1.0 ug/1 lei e` acs#aU pa � � • - P-ehloro-m-creso 34452 Grab EPA 625 1.6 <1.6 ug/1 2-chlorophenol 34586 Grab EPA 625 1.6 <1.6 ug/1 2,4-dichlorophenol 34601 Grab EPA 625 1.6 <1.6 ug/1 2,4-dimethylphenol 34606 Grab EPA 625 1.6 <1.6 ug/1 4,6-dinitro-o-cresol 34657 Grab EPA 625 8.0 <8.0 ug/1 2,4-dinitrophenol 34616 Grab EPA 625 8.0 <8.0 ug/1 2-nitrophenol 34591 Grab EPA 625 3.2 <3.2 ug/1 4-nitrophenol 34646 Grab EPA 625 8.0 <8.0 ug/1 Pentachlorophenol 39032 Grab EPA 625 8.0 <8.0 ug/1 Phenol 34694 Grab EPA 625 1.6 <1.6 ug/1 2,4,6-trichlorophenol 34621 Grab EPA 625 1.6 <1.6 ug/1 Acenaphthene 34205 Grab EPA 625 1.6 <1.6 ug/1 Acenaphthylene 34200 Grab EPA 625 1.6 <1.6 ug/1 Anthracene CO220 Grab EPA 625 1.6 <1.6 ug/1 Benzidine 39120 Grab EPA 625 8.0 <8.0 ug/1 Benzo(a)anthracene 34526 Grab EPA 625 1.6 <1.6 ug/1 Benzo(a)pyrene 34247 Grab EPA 625 1.6 <1.6 ug/1 3,4 benzofluoranthene 34230 Grab EPA 625 1.6 <1.6 ug/1 Senzo(ghi)perylene 34521 Grab EPA 625 1.6 <1.6 ug/1 Benzo(k)fluoranthene 34242 Grab EPA 625 1.6 <1.6 ug/1 Bis (2--chloroethoxy) methane 34278 Grab EPA 625 1.6 <1.6 ug/1 Bis (2-chloroethyl) ether 34273 Grab EPA 625 1.6 <1.6 ug/1 Bis (2-chloroisopropyl} ether 34283 Grab EPA 625 1.6 <1.6 ug/1 Bis (2-ethylhexyl) phthalate 39100 Grab EPA 625 1.6 <1.6 ug/1 4-bromophenyl phenyl ether 34636 Grab EPA 625 1.6 <1.6 ug/1 Butyl benzyl phthalate 34292 Grab EPA 625 1.6 <1.6 ug/1 2-chloronaphthalene 34581 Grab EPA 625 1.6 <1.6 ug/1 4-chlorophenyl phenyl ether 34641 Grab EPA 625 1.6 <1.6 ug/l Chrysene 34320 Grab EPA 625 1.6 <1.6 ug/1 Di-n-butyl phthalate 39110 Grab EPA 625 1.6 <1.6 ug/1 Form - DMR- PPA-1 Page 2 Annual Monitoring and Pollutant Scan Permit No. ; NC0020184 Outfall: 001 Month: September Year: 2018 �- ae� �111 C'iil✓'}_e", r' Q -"VW �13T1S'f: Di-n-octyl phthalate 34596 Grab EPA 625 1.6 <1.6 ug/1 Dibenzo(a,h)anthracene 34556 Grab EPA 625 1.6 <1.6 ug/1 1,2-dichlorobenzene 34536 Grab EPA 625 1.6 <1.6 ug/1 1,3-dichlorobenzene 34566 Grab EPA 625 1.6 <1.6 ug/1 1,4-dichlorobenzene 34571 Grab EPA 625 1.6 <1.6 ug/1 3,3-dichlorobenzidine 34631 Grab EPA 625 8.0 <8.0 ug/1 Diethyl phthalate 34336 Grab EPA 625 1.6 <1.6 ug/1 Dimethyl phthalate 34341 Grab EPA 625 1.6 <1.6 ug/1 2,4-dinitrotoluene 34611 Grab EPA 625 3.2 <3.2 ug/1 2,6-dinitrotoluene C0626 Grab EPA 625 3.2 <3.2 ug/I 1,2-diphenylhydrazine 34346 Grab EPA 625 1.6 <1.6 ug/l Fluoranthene CO376 Grab EPA 625 1.6 <1.6 ug/1 1?luorene 34381 Grab EPA 625 1.6 <1.6 ug/1 Hexachlorobenzene CO700 Grab EPA 625 1.6 <1.6 ug/1 Hexachlorobutadiene 39702 Grab EPA 625 1.6 <1.6 ug/1 Hexachlorocyclo-pentadiene 34386 Grab EPA 625 8.0 <8.0 ug/1 Hexachloroethane 34396 Grab EPA 625 1.6 <1.6 ug/1 Indeno(1,2,3-cd)pyrene 34403 Grab EPA 625 1.6 <1.6 ug/1 lsophorone 34408 Grab EPA 625 1.6 <1.6 ug/1 Naphthalene 34696 Grab EPA 625 1.6 <1.6 ug/1 Nitrobenzene 34447 Grab EPA 625 1.6 <1.6 ug/1 N--nitrosodi-n-propylamine 34428 Grab EPA 625 1.6 <1.6 ug/1 N-nitrosodimethylarnine 34438 Grab EPA 625 1.6 <1.6 ug/1 N-nitrosodiphenylamine 34433 Grab EPA 625 1.6 <1.6 ug/1 Phenanthrene 34461 Grab EPA 625 1.6 <1.6 ug/1 Pyrene 34469 Grab EPA 625 1.6 <1.6 ug/1 1,2,4,-trichlorobenzene 34551 Grab EPA 625 1.6 <1.6 ug/1 ** Additional parameter run per method 624. *** Additional parameter run per method EPA 200.8 "I certify, under penalty of law, that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person or persons who managed the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fines and imprisonment for knowing violations." Authorized Representative na Si ature 11/4.9-AU Date Form - DMR- PPA-1 Page 3 Annual Monitoring and Pollutant Scan Permit No.: NC0020184 Outfall: 001 Facility Name : Long Creek WWTP Date of sampling : March 7, 2019 Month: March Year: 2019 ORC : Doug Barker Phone : 704-866-6991 Analytical Laboratory : City of Gastonia, Crowders Creek Lab (NC#210) and Shealy Environmental Services Inc. (NC#329) a u e :r_.... n_ :c<���� dam • le -.-:-a .:-.�r..Y=r,%��.�� ,s.. �r .,,-.,,'." �" ... SM4500 NH3 D Quuntltatran ✓ ..,'i`J.a» 0.2 Sam e .., _...`---",::...r 0.3 Units of .-.r r..... �,.,.`-,=.=€�x,:: ...,..,, mg/1 .._. „..;'�.; -..._ r. ,,,r ,-i . Ammonia (as N) C0610 Composite Chlorine (total residual, TRC) 50060 Grab SM4500 CL G 20 <20 ug/1 Dissolved Oxygen 00300 Grab SM4500 0 G 0.1 10.4 mg/1 Nitrite plus Nitrate Total (as N) 00630 Composite SM4500 NO3 F-NO2 0.5 4.5 mg/1 Total Kjeldahl Nitrogen 00625 Composite SM4500 NORG C 1.0 1.8 mg/1 Oil and Grease 00556 Grab 1664B 5.6 <5.6 mg/1 Total Phosphorus C0665 Composite SM4500 P E 0.05 0.2 mg/1 Total Dissolved Solids 70295 Composite SM2540C 25 210 mg/1 Hardness 00900 Composite SM2340C 10 64 mg/1 e ota a oc yp A aui Ii � a offal � a Antimony 01097 Composite EPA 200.8 1.0 <1.0 ug/1 Arsenic 01002 Composite EPA 200.8 1.0 <1.0 ug/1 Beryllium 01012 Composite EPA 200.8 1.0 <1.0 ug/1 Cadmium 01027 Composite EPA 200.8 0.5 <0.5 ug/1 Chromium 01034 Composite EPA 200.8 1.0 2.6 ug/1 Copper 01042 Composite EPA 200.8 1.0 2.5 ug/1 Lead 01051 Composite EPA 200.8 1.0 <1.0 ug/1 Mercury (Method 1631E) COMER Composite EPA 1613E 1.0 1.79 ng/1 Nickel 01067 Composite EPA 200.8 1.0 8.9 ug/1 Selenium 01147 Composite EPA 200.8 1.0 <1.0 ug/1 Silver 01077 Composite EPA 200.8 1.0 <1.0 ug/1 Thallium 01059 Composite EPA 200.8 1.0 <1.0 ug/1 Molybdenum*** 01062 Composite EPA 200.8 1.0 3.2 ug/1 Zinc 01092 Composite EPA 200.8 10 43.6 ug/1 Cyanide 00720 Grab SM 4500-CN 0.010 <0.010 mg/1 Total phenolic compounds 32730 Grab EPA 420.4 0.005 <0.005 mg/1 afi)C o nip _onntcls Grab EPA 624 5.0 <5.0 ug/1 Acrolein 34210 Acrylonitrile 34215 Grab EPA 624 5.0 <5.0 ug/1 Benzene 34030 Grab EPA 624 1.0 <1.0 ug/1 Bromofoiui 32104 Grab EPA 624 1.0 <1.0 ug/1 Carbon Tetrachloride 32102 Grab EPA 624 1.0 <1.0 ug/1 Chlorobenzene 34301 Grab EPA 624 1.0 <1.0 ug/1 Chlorodibromomethane 34306 Grab EPA 624 1.0 <1.0 ug/1 Chloroethane 85811 Grab EPA 624 2.0 <2.0 ug/1 2-chloroethyl vinyl ether 34576 Grab EPA 624 5.0 <5.0 ug/1 Chloroform 32106 Grab EPA 624 1.0 1.7 ug/1 Dichlorobromomethane 32101 Grab EPA 624 1.0 <1.0 ug/1 1,1-dichloroethane 34496 Grab EPA 624 1.0 <1.0 ug/1 1,2-dichloroethane 32103 Grab EPA 624 1.0 <1.0 ug/1 Trans-1,2-dichloroethylene 34546 Grab EPA 624 1.0 <1.0 ug/1 1,1-dichloroethylene 34501 Grab EPA 624 1.0 <1.0 ug/1 1,2-dichloropropane 34541 Grab EPA 624 1.0 <1.0 ug/1 1,3-dichloropropylene 77163 Grab EPA 624 1.0 <1.0 ug/1 Ethylbenzene 34371 Grab EPA 624 1.0 <1.0 ug/1 Form - DMR- PPA-1 Page 1 Annual Monitoring and Pollutant Scan Permit No.: NC0020184 Outfall: 001 Month: March Year: 2019 � Parameter : r n am le a y Anal a1 C 5 ?tatio E 2.0 dam :. , <2.0 hies o� Buren eut ug/1 Methyl Bromide 34413 Grab EPA 624 Methyl Chloride 34418 Grab EPA 624 2.0 <2.0 ug/1 Methylene Chloride 34423 Grab EPA 624 1.0 <1.0 ug/1 1,1,2,2-tetrachloroethane 81549 Grab EPA 624 1.0 <1.0 ug/1 Tetrachloroethylene 34475 Grab EPA 624 1.0 <1.0 ug/1 Toluene 34010 Grab EPA 624 1.0 <1.0 ug/1 1,1,1-trichloroethane 34506 Grab EPA 624 1.0 <1.0 ug/1 1,1,2-trichloroethane 34511 Grab EPA 624 1.0 <1.0 ug/1 Trichloroethylene 39180 Grab EPA 624 1.0 <1.0 ug/1 Vinyl Chloride 39175 Grab EPA 624 1.0 <1.0 ug/1 1,2-Dichlorobenzene** 34356 Grab EPA 624 1.0 <1.0 ug/1 1,3-Dichlorobenzene** 34566 Grab EPA 624 1.0 <1.0 ug/1 1,4-Dichlorobenzene** 34571 Grab EPA 624 1.0 <1.0 ug/1 Dichlorodifluoromethane** 34668 Grab EPA 624 2.0 <2.0 ug/1 cis-1,2-Dichloroethene** 77093 Grab EPA 624 1.0 <1.0 ug/1 1,2,4-Trichlorobenzene** 34551 Grab EPA 624 1.0 <1.0 ug/1 Trichlorofluormethane** 34488 Grab EPA 624 1.0 <1.0 ug/1 e�frae��pouns�s P-chloro-m-creso 34452 Grab EPA 625 1.6 <1.6 ug/1 2-chlorophenol 34586 Grab EPA 625 1.6 <1.6 ug/1 2,4-dichlorophenol 34601 Grab EPA 625 1.6 <1.6 ug/1 2,4-dimethylphenol 34606 Grab EPA 625 1.6 <1.6 ug/1 4,6-dinitro-o-cresol 34657 Grab EPA 625 8.0 <8.0 ug/1 2,4-dinitrophenol 34616 Grab EPA 625 8.0 <8.0 ug/1 2-nitrophenol 34591 Grab EPA 625 3.2 <3.2 ug/1 4-nitrophenol 34646 Grab EPA 625 8.0 <8.0 ug/1 Pentachlorophenol 39032 Grab EPA 625 8.0 <8.0 ug/1 Phenol 34694 Grab EPA 625 1.6 <1.6 ug/1 2,4,6-trichlorophenol 34621 Grab EPA 625 1.6 <1.6 ug/1 Ba e» a tral com u 34205 Grab EPA 625 1.6 <1.6 ug/1 Acenaphthene Acenaphthylene 34200 Grab EPA 625 1.6 <1.6 ug/1 Anthracene CO220 Grab EPA 625 1.6 <1.6 ug/1 Benzidine 39120 Grab EPA 625 8.0 <8.0 ug/1 Benzo(a)anthracene 34526 Grab EPA 625 1.6 <1.6 ug/1 Benzo(a)pyrene 34247 Grab EPA 625 1.6 <1.6 ug/1 3,4 benzofluoranthene 34230 Grab EPA 625 1.6 <1.6 ug/1 Benzo(ghi)perylene 34521 Grab EPA 625 1.6 <1.6 ug/1 Benzo(k)fluoranthene 34242 Grab EPA 625 1.6 <1.6 ug/1 Bis (2-chloroethoxy) methane 34278 Grab EPA 625 1.6 <1.6 ug/1 Bis (2-chloroethyl) ether 34273 Grab EPA 625 1.6 <1.6 ug/1 Bis (2-chloroisopropyl) ether 34283 Grab EPA 625 1.6 <1.6 ug/1 Bis (2-ethylhexyl) phthalate 39100 Grab EPA 625 8.0 <8.0 ug/1 4-bromophenyl phenyl ether 34636 Grab EPA 625 1.6 <1.6 ug/1 Butyl benzyl phthalate 34292 Grab EPA 625 1.6 <1.6 ug/1 2-chloronaphthalene 34581 Grab EPA 625 1.6 <1.6 ug/1 4-chlorophenyl phenyl ether 34641 Grab EPA 625 1.6 <1.6 ug/1 Chrysene 34320 Grab EPA 625 1.6 <1.6 ug/1 Di-n-butyl phthalate 39110 Grab EPA 625 1.6 <1.6 ug/1 Form - DMR- PPA-1 Page 2 Annual Monitoring and Pollutant Scan Permit No. : NC0020184 Outfall: 001 Month: March Year: 2019 €trametei..."' Pa ametex Code Sam le --- ^'Type ��'v'�,��w-r� , ,AII�Ca . VLe'thod EPA 625 Qu(a is do Le 1.6 Sam 1e k ,s1 t <1.6 Vnit Measure rient• ug/1 Di-n-octyl phthalate 34596 Grab Dibenzo(a,h)anthracene 34556 Grab EPA 625 1.6 <1.6 ug/1 1,2-dichlorobenzene 34536 Grab EPA 625 1.6 <1.6 ug/1 1,3-dichlorobenzene 34566 Grab EPA 625 1.6 <1.6 ug/1 1,4-dichlorobenzene 34571 Grab EPA 625 1.6 <1.6 ug/1 3,3-dichlorobenzidine 34631 Grab EPA 625 8.0 <8.0 ug/1 Diethyl phthalate 34336 Grab EPA 625 1.6 <1.6 ug/1 Dimethyl phthalate 34341 Grab EPA 625 1.6 <1.6 ug/1 2,4-dinitrotoluene 34611 Grab EPA 625 3.2 <3.2 ug/1 2,6-dinitrotoluene CO626 Grab EPA 625 3.2 <3.2 ug/1 1,2-diphenylhydrazine 34346 Grab EPA 625 1.6 <1.6 ug/1 Fluoranthene CO376 Grab EPA 625 1.6 <1.6 ug/1 Fluorene 34381 Grab EPA 625 1.6 <1.6 ug/1 Hexachlorobenzene CO700 Grab EPA 625 1.6 <1.6 ug/1 Hexachlorobutadiene 39702 Grab EPA 625 1.6 <1.6 ug/1 Hexachlorocyclo-pentadiene 34386 Grab EPA 625 8.0 <8.0 ug/1 Hexachloroethane 34396 Grab EPA 625 1.6 <1.6 ug/1 Indeno(1,2,3-cd)pyrene 34403 Grab EPA 625 1.6 <1.6 ug/1 Isophorone 34408 Grab EPA 625 1.6 <1.6 ug/1 Naphthalene 34696 Grab EPA 625 1.6 <1.6 ug/1 Nitrobenzene 34447 Grab EPA 625 1.6 <1.6 ug/1 N-nitrosodi-n-propylamine 34428 Grab EPA 625 1.6 <1.6 ug/1 N-nitrosodimethylamine 34438 Grab EPA 625 1.6 <1.6 ug/1 N-nitrosodiphenylamine 34433 Grab EPA 625 1.6 <1.6 ug/1 Phenanthrene 34461 Grab EPA 625 1.6 <1.6 ug/1 Pyrene 34469 Grab EPA 625 1.6 <1.6 ug/1 1,2,4,-trichlorobenzene 34551 Grab EPA 625 1.6 <1.6 ug/1 ** Additional parameter run per method 624. *** Additional parameter run per method EPA 200.8 "I certify, under penalty of law, that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person or persons who managed the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fines and imprisonment for knowing violations." Authorize. Re eresentative name Sid ature 2,000 yd ate Form - DMR- PPA-1 Page 3 4/10/2021 Mail - Yitbarek, Diana - Outlook [External] RE: NC0020184, Long Creek WWTP, City of Gastonia, Gaston County, MRO Shellenbarger, David <davids@tworiversutilities.com> Fri 3/5/2021 11:33 To: Yitbarek, Diana <diana.yitbarek@ncdenr.gov> Cc: Scheringer, Stephanie B <stephanies@tworiversutilities.com>; Graves, Kevin <keving@tworiversutilities.com>; Brothers, Mourice <mouriceb@tworiversutilities.com> 9 attachments (16 MB) Response to Item 1 - Toxicity 2018 06 LC TOX + ATS.pdf; Response to Item 1 - Toxicity 2018 09 LC TOX AT1 ATS.pdf; Response to Item 1 - Toxicity 2018 12 LC TOX AT1 AT5.pdf; Response to Item 1 - Toxicity 2019 03 LC TOX AT5.pdf; Response to Item 2 - PPA 2017 06.pdf; Response to Item 2 - PPA 2018 09.pdf; Response to Item 2 - PPA 2019 03.pdf; Response to Item 3 - Short Form for Updated Application form 2A.pdf; Response to Item 7 - Delegation of Signature Authority.pdf; CAUTION: External email. Do not click links or open attachments unless you verify. Send all suspicious email as an attachment to Report Spam. Ms. Yitbarek: Thank you for your work reviewing our permit application. Please see the attached responses regarding the information requested. Requested Information: 1. The permit for this facility requires four toxicity tests for a test organism other than Ceriodaphnia. In our database, we have records of three 2nd species tests (Pimephales promelas). Please double-check your records and submit the 2nd species test lab results. Response: Four 2nd species tests (pimephales promelas) were collected in June, September and December 2018; and March 2019. Copies of the submitted AT-5 reports are attached. 2. Please submit the signed Annual Monitoring and Pollutant Scans for 2017, 2018, and 2019. Response: Priority pollutant scans were collected in June 2017, September 2018, and March 2019. Copies of the submitted PPA reports are attached. 3. Please complete this short form to meet the latest application requirements for the updated application form 2A. Response: The completed short form is attached. 4. Please provide coordinates for the upstream and downstream location points (approximate coordinates to the actual location from an online map would suffice). Response: Coordinates of the sample locations are as follows: Upstream 35.316231, -81.117191 35°18'58.4"N 81°07'01.9"W Downstream (D1) 35.308702, -81.112213 35°18'31.3"N 81°06'44.0"W Downstream (D2) 35.260428, -81.074081 35°15'37.5"N 81°04'26.7"W 5. The current outfall coordinate in the permit, 35°18'37.0"N 81°06'50.0"W, appears to be off. Would it be ok if we update it to 35°18'36.7"N 81°06'53.2"W? Would this be closer to the actual location. Response: Yes, those coordinates are closer to the actual location. A more accurate set of coordinates for the outfall is 35.310561 -81.115002 (35°18'38.0"N 81°06'54.0"W). 6. If there are additional pollutants with certified methods to be reported, please submit this Chemical Addendum https://outlook.office.com/mail/search/id/AAQkADNmOTIxZjdhLTEyMWYtNDEzMS1 iOGNiLTkxNmZhYWJmZThIMAAQAIrEFQrWUidOuxGA08%2B6A... 1/4 4/10/2021 Mail - Yitbarek, Diana - Outlook Response: Information for all pollutants analyzed by certified methods have been reported on eDMRs or PPA forms and summarized in this renewal application. There are no additional pollutants to report. 7. Stephanie Scheringer, Division Manager, signed the NPDES permit application. Per 40 CFR § 122.22, the permit applications shall be signed by the principal executive officer or ranking elected official. Please confirm that the Division Manager has the authorities described on 40 CFR § 122.22. Response: As Division Manager of the Wastewater Treatment Division, Ms. Scheringer has been delegated by the City Manager of Gastonia to have signatory authority for all wastewater documentation. A copy of this delegation is attached. Please let us know if you have any questions or concerns with any of these items or if there is anything else we can provide regarding this renewal. Thanks, David Shellenbarger Assistant Division Manager Compliance Two Rivers Utilities (\l[ )\1 \ OUR MISSION: To provide fair, competent, responsive, cost-effective services at the highest level. The City of Gastonia is committed to creating and maintaining a work environment that is inclusive, equitable and welcoming. We value diversity and promise to honor your experiences, perspective and unique identity. From: Yitbarek, Diana [mailto:diana.yitbarek@ncdenr.gov] Sent: Wednesday, February 24, 2021 2:43 PM To: Shellenbarger, David <davids@tworiversutilities.com>; Scheringer, Stephanie <stephanies@tworiversutilities.com> Subject: Re: NC0020184, Long Creek WWTP, City of Gastonia, Gaston County, MRO CAUTION: This email originated from outside of the organization. Do not click links or open attachments unless you recognize the sender and know the content is safe. I noted Stephanie Scherzinger, Division Manager, signed the NPDES permit application. Per 40 CFR § 122.22, the permit applications shall be signed by the principal executive officer or ranking elected official. Please confirm that the Division Manager has the authorities described on 40 CFR § 122.22. Thank you! -Diana Diana Yitbarek Engineer T: +1-919-707-9130 diana.yitbarek@ncdenr.gov https://outlook.office.com/mail/search/id/AAQkADNmOTIxZjdhLTEyMWYtNDEzMs1 iOGNiLTkxNmZhYWJmZThIMAAQAIrEFQrWUidOuxGA08%2B6A... 2/4 4/10/2021 Mail - Yitbarek, Diana - Outlook NPDES Municipal Permitting Unit NC Department of Environmental Quality) Division of Water Resources Mailing: 1617 Mail Service Center, Raleigh, NC 27699-1617 Physical: 512 N. Salisbury Street, Rm. 125T, Raleigh, NC 27604-1170 �EQ� {l4pKlea tCI iieIChisl14 *Please check with the appropriate staff before visiting our offices, as we may be able to handle your requests by phone or email. We can also be available via Microsoft Teams if requested. Thanks for your patience and stay safe. Email correspondence to and from this address is subject to the North Carolina Public Records Law and may be disclosed to third parties. From: Yitbarek, Diana <diana.yitbareI ncdenr.gov> Sent: Wednesday, February 24, 2021 14:40 To: Shellenbarger, David <davidsjtworiversutilities.com> Cc: Scheringer, Stephanie B<stephanies@tworiversutilities.com>; Basinger, Corey <corey.basingerPncdenr.gov> Subject: NC0020184, Long Creek WWTP, City of Gastonia, Gaston County, MRO Good afternoon, David As Mike Templeton mentioned in a separate thread, I am the assigned permit writer for the subject line facility. I look forward to working with you to complete this permit renewal. Thanks for submitting the August 1, 2019, NPDES permit application. I will appreciate your support with some additional/revised information to address the following comments: 1. The permit for this facility requires four toxicity tests for a test organism other than Ceriodaphnia. In our database, we have records of three 2nd species tests (Pimephales promelas). Please double-check your records and submit the 2nd species test lab results. 2. Please submit the signed Annual Monitoring and Pollutant Scans for 2017, 2018, and 2019. 3. Please complete this short form to meet the latest application requirements for the updated application form 2A. 4. Please provide coordinates for the upstream and downstream location points (approximate coordinates to the actual location from an online map would suffice). a. The current outfall coordinate in the permit, 35°18'37.0"N 81°06'50.0"W, appears to be off. Would it be ok if we update it to 35°18'36.7"N 81°06'53.2"W? Would this be closer to the actual location? 5. If there are additional pollutants with certified methods to be reported, please submit this Chemical Addendum. Please provide this information by March 24, 2021. If you need more time, please just let me know. Thanks for your continued cooperation with the NPDES program and your work protecting public health and the environment. Please let me know if you have any questions. -Diana Diana Yitbarek Engineer T: +1-919-707-9130 diana.yitbarek@ncdenr.gov https://outlook.office.com/mail/search/id/AAQkADNmOTIxZjdhLTEyMWYtNDEzMS1 iOGNiLTkxNmZhYWJmZThIMAAQAIrEFQrWUidOuxGA08%2B6A... 3/4 4/10/2021 Mail - Yitbarek, Diana - Outlook NPDES Municipal Permitting Unit NC Department of Environmental Quality) Division of Water Resources Mailing: 1617 Mail Service Center, Raleigh, NC 27699-1617 Physical: 512 N. Salisbury Street, Rm. i25T, Raleigh, NC 27604-1170 ,nRO;EQ� 04p 1 I 91Ei7PliWrtilla I Chisl14 *Please check with the appropriate staff before visiting our offices, as we may be able to handle your requests by phone or email. We can also be available via Microsoft Teams if requested. Thanks for your patience and stay safe. Email correspondence to and from this address is subject to the North Carolina Public Records Law and may be disclosed to third parties. https://outlook.office.com/mail/search/id/AAQkADNmOTIxZjdhLTEyMWYtNDEzMS1 iOGNiLTkxNmZhYWJmZThIMAAQAIrEFQrWUidOuxGA08%2B6A... 4/4 Permit No. NC0020184 NPDES Implementation of Instream Dissolved Metals Standards - Freshwater Standards The NC 2007-2015 Water Quality Standard (WQS) Triennial Review was approved by the NC Environmental Management Commission (EMC) on November 13, 2014. The US EPA subsequently approved the WQS revisions on April 6, 2016, with some exceptions. Therefore, metal limits in draft permits out to public notice after April 6, 2016 must be calculated to protect the new standards - as approved. Table 1. NC Dissolved Metals Water Quality Standards/Aquatic Life Protection Parameter Acute FW, µg/1 (Dissolved) Chronic FW, µg/1 (Dissolved) Acute SW, 1..tg/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. See calculated values in RPA Table 2 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*{1.1366724ln hardness](0.041838)} - e^{0.9151[ln hardness]-3.6236} Cadmium, Chronic WER*{1.1016724ln 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[ln hardness]-1.460} Lead, Chronic WER*{1.462034ln hardness](0.145712)} • e^{1.273[ln hardness]-4.705} Nickel, Acute WER*0.998 • e^{0.8460[ln hardness]+2.255} Nickel, Chronic WER*0.997 • e^{0.8460[ln hardness]+0.0584} Page 1 of 4 Permit No. NC0020184 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[In 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. NC0020184 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 + { [KPoI �SS(1+a)l r 1 0-6l } 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. NC0020184 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)] 55.53 Data provided in DMRs Average Upstream Hardness (mg/L) [Total as, CaCO3 or (Ca+Mg)] 22.69 Data provided in DMRs 7Q10 summer (cfs) 109 NPDES Files 1Q10 (cfs) 88.92 Calculated in RPA Permitted Flow (MGD) 16.0 NPDES permit application Date: 4/19/2021 Permit Writer: Diana Yitbarek Page 4 of 4 AU Name AU ID Description NORTH CAROLINA 2020 303(D) LIST Upper Catawba Catawba River Basin AU Number Classification Length or Area Units Isaac Creek 1175 11-59-(2) WS-IV,B;CA 0.6 FW Miles From a point 0.6 mile upstream of mouth to Lake Hickory, Catawba River PARAMETER IR CATEGORY CRITERIA STATUS = REASON FOR RATING 303D YEAR 1 IpH (6 su, AL, FW) 5 Exceeding Criteria Legacy RAMS Assessments 2012 Falling Creek 1178 11-60 4.0 FW Miles From source to Lake Hickory, Catawba River PARAMETER IR CATEGORY CRITERIA STATUS = REASON FOR RATING 303D YEAR J Benthos (Nar, AL, FW) 5 Exceeding Criteria Fair, Poor or Severe Bioclassification 201 Lower Little River 13612 11-69-(0.5) b 6.2 FW Miles From Lambert Fork to a point 0.5 mile upstream of mouth of Stirewalt Creek PARAMETER IR CATEGORY CRITERIA STATU REASON FOR RATING 303DAilim Fish Community (Nar, AL, FW) 5 Exceeding Criteria Fair, Poor or Severe Bioclassification 2014 Muddy Fork 1204 11-69-4 6.8 FW Miles From source to SR 1409 PARAMET 11111,WrGORY -TIiITIRIA STATI—ig. REASON FOR RATING 303D YEAR . Benthos (Nar, AL, FW) 5 Exceeding Criteria Fair, Poor or Severe Bioclassification 2010 McLin Creek 1254 11-76-5-(3) WS-IV;CA 0.7 FW Miles From a point 0.2 mile upstream of Catawba County SR 1722 to Lyle Creek PARAMETER IR CATEGORY CRITERIA STATUS = REASON FOR RATING 303D YEAR ] Benthos (Nar, AL, FW) 5 Exceeding Criteria Fair, Poor or Severe Bioclassification 2010 Catawba River Basin 0305010 South Fork Catawba South Fork Catawba River L 453 11-129-(15.5) WS-V 18.1 FW Miles From a point 0.4 mile upstream of Long Creek to Cramerton Dam and Lake Wylie at Upper Armstrong Bridge PARAMETER IR CATEGORY CRITERIA STATUS REASON FOR RATING 303D YEAR Turbidity (50 NTU, AL, FW miles) 5 Exceeding Criteria Exceeding Criteria with Statistical Confidence 2008 Mauney Creek 497 11-129-15-5 WS-IV 4.4 FW Miles From source to Hoyle Creek PARAMETER IR CATEGORY CRITERIA STATUS REASON FOR RATING 303D YEAR w Benthos (Nar, AL, FW) 5 Exceeding Criteria Fair, Poor or Severe Bioclassification 2000 7/21/2021 NC 2020 303d List- Approved by EPA June 23,2021 Page 35 of 188 Reduction in Frequency Evaluation Long Creek WWTP Class IV /16.0 MGD di - co 2/28/2018 - 2/28/2021 0 N 0 0 U Z Facility: Facility Class/Flow: Permit No. Review period (use 3 yrs) z >- z z z z 11. Currently under Special Orders by Consent (SOC) (3) 2. On EPA Quarterly noncompliance i 3. Facility or employees convicted of CWA violations within the last five years (2) 4. More than one civil penalty assessment for permit limit violations for each target parameter during previous three years (1) M1• ti A asessment M1• N A c >• C o . ++ 0 C r-1 O O — O xt E '5 M1• O V N M1• LA lO V 1.0 L L C O M >• N N C V N ELL LL CQ LA o M C .�.. 2 c z >- Z Z O O Z Z O O N O z O N >- N O n n iD M Lf1 } } } } Z Z ZZ IZ Z Z Z >- 00 >- >- >- O iD 00 } } } } N N Lf) N c-I ri M iD dl c-I O Ln CS) N N O rn (N1 Lf) N O N O c-I c-I m N O O N Lf) iD N O O J J J O E E E O Ammonia (summer) a) 0 E E Fecal Coliform Z m 2 z C E LA N co O a) •— >. O Q U c. O U v) m a) °ss- 0 0 o vs v N a z no no +) v a) = v ro E v � Z > v > > C � f6 � n3 >.• o_ v (0 E - v 3 v`)i ° v to to 1—° E +° co j L^ a) D U Q V Jam+ o a)Caq- v +' - o O ° v, o 0 o a o ° O o v ° E E ,N9 N E 4- 4— O ° W vs Ca '03 > C v v Q — (a 4J a) U U f6 (6 . Q Q x x Q +� ° a)a) a° E E n°J.o n°).o c .c t co •i 0 v '� a) +.+ L O O (a (a n3 -0 c' C O T T O 0 C +-+ E a-+ I Q I UC o O° E E .v +.+ u a) a) a) °°° t t v v E _+ W a) O ( co tlbE f a) a- a) v > O v Q (a a) w a) a) a) a) t E v v co co O v co 0_ 0_-, '� T ++ Q a) 47" j i 0 2 E stY c c a.)" w E a) fo f6 >> +, _c _cO o C N p v' v' 4 +N-+ C _ a' > 4- N v' O U° CJ v v N vs c (a > O .'.v_ —^ ' v v co -c)ca `� c c no nn > i c2a v co O_ .O > wc v E E 0-E t •� (0 v U +-+ +-+ O a) 4-+ v' +-+ o 0 }• E a) >, > O - C E O E E .— •07 C (0 v' v C +_+ O n3 -0 N •y L D" •N co no Lf) O L 'i +.+ L : ' (a (a C + + • C U .0 v > > (a - .0 v ss—v a) +4 +-' q- O N Jam-.+ N v v v' N v' N a +4 Z H H H J J H a .. -1 N M d- Ln SD N 00 M 00 42c0-b4ee-cf3968502019& 0fdd082-617 s i Conclusion: The facility meets the approval criteria for monitoring reduction for TSS, ammonia, and Fecal Coliform ROY COOPER Governor ELIZABETH S. BISER Secretary S. DANIEL SMITH Director MEMORANDUM To: NORTH CAROLINA Environmental Quality September 7, 2021 Clinton Cook NC DEQ / DWR / Public Water Supply Mooresville Regional Office From: Diana Yitbarek NC DEQ / DWR / Municipal Permitting Unit Subject: Review of Draft NPDES Permit NC0020184 Long Creek WWTP Outfall 001/ South Fork Catawba River Gaston County Please indicate below your agency's position or viewpoint on the draft permit and return this form by October 7, 2021. If you have any questions on the draft permit, please contact me at 919-707-9130 or via e-mail [diana.yitbarek@ncdenr.gov]. RESPONSE: (Check one) X §§§§§§§§§§§§§§§§§§§§§§§§§§§§§§§§ Concur with the issuance of this permit provided the facility is operated and maintained properly, the stated effluent limits are met prior to discharge, and the discharge does not contravene the designated water quality standards. Concurs with issuance of the above permit, pr vi c the f 11 wing c n iti ns arc mct: I have no appreciable expertise in implementation of the Clean Water Act requirements and have minimal understanding of the information provided. As a result, I have no basis for opposing the permit. Opposes the issuance of the above permit, based on reasons stated below, or attached: Signature: U Date: 9/15/2021 LD_E N:par m n1 of E iron tlopartmenl a} Environmental Oualily North Carolina Department of Environmental Quality I Division of Water Resources 512 North Salisbury Street 11617 Mail Service Center I Raleigh, North Carolina 27699-1617 919.707.9000 LOCALIQ StarNews I The Dispatch I Times -News Sun Journal I The Daily News I The Star The Free Press I Gaston Gazette PROOF OF PUBLICATION Ncdenr-Div. Of Water Resources Ncdenr-Div. Of Water Resources 1617 MAIL SERVICE CENTER RALEIGH NC 27699 STATE OF NORTH CAROLINA, COUNTY OF GASTON The Gaston Gazette, a newspaper printed and published in the city of Gastonia, and of general circulation in the County of Gaston, State of North Carolina, and personal knowledge of the facts herein state and that the notice hereto annexed was Published in said newspapers in the issue dated: 09/09/2021 and that the fees charged are legal. Sworn to and subscribed before on 09/09/2021 (LAS- .o4‹( Legal Clerk Notary, State o I, County of wn My commision expires Publication Cost: $156.40 Order No: 6270241 Customer No: 489035 PO #: THIS IS NOT AN INVOICE! Please do not use this form for payment remittance. SA.. iFA I BERTELSEN Notary Public Site of VVisconsin # of Copies: 1 PO Box 631245 Cincinnati, OH 45263-1245 Public Notice North Carolina Environmen- tal Management Commis- sion/NPDES Unit 1617 Mail Service Center Raleigh, NC 27699-1617 Notice of Intent to Issue a NPDES Wastewater Permit NC0020184 Long Creek WWTP, and NC0006033 Eagle Road WWTP The North Carolina Environ• mental Management Commission proposes to issue a NPDES wastewater discharge permit to the Persons) listed below. Writ- ten comments regarding the proposed permit will be accepted until 30 days after the publish date of this notice. The Director of the NC Division of Water Resources (DWR) may hold a public hearing should there be a significant degree of public interest. Please mail comments and/or informa- tion requests to DWR at the above address. Interested persons may visit the DWR at 512 N. Salisbury Street, Raleigh, NC 27604 to review information an file. Addi- tional information on NPDES permits and this notice may be found on our website: http: /tdeq.nc.govlabout/d i v€si on s/wate r-resources/wa to r- r e s o u rc a s-pe r m i ts/w a ste- water-branch/nodes-waste- water/publit-notices,or by calling {919) 707-3601. The City of Gastonia (P.O. Box 1748. Gastonia. NC 28053) has requested renewal of the NPDES Permit NC0020184 and NC0006033 for its Waste- water Treatment Plants in Gaston County. These permitted facilities discharges treated domestic and pretreated industrial wastewater to South Fork in the Catawba River Basin. Ammonia, biochemical oxygen demand, dissolved oxygen, fecal coliform, pH, total residual chlorine, total nitrogen, total phosphorous, and total suspended solids are water quality limited Parameters in both permits. These discharges may affect future allocations in these segments of the South Fork Catawba River. 6270241 Page 1 of 1 The Division received comments for the Long Creek (NC0020184) WWTPs NPDES Permit Renewal and provides the following responses: Comments from Two Rivers Utilities (TRU): 1. Comment on Total Phosphorous (TP) concentration limit "The draft permit lists a monthly effluent limit for TP of 1.0 mg/L. The fact sheet states that this limit had been in effect and is continuing; however, in the current permit the total phosphorus concentration limit ended on 12/31/2017 (when the mass load limit took effect) and only monitoring and reporting is currently required regarding the total phosphorus concentration. The removal of this limit is also documented in section 6.7 of the permit's Fact Sheet and is consistent with the manner in which the allocations are described as being expressed in this section of the Fact Sheet. The City of Gastonia strongly requests that this monthly average limit be removed and that the phosphorus allocation continues to be expressed solely as a mass load limit." Response: The NPDES permit, effective on April 1, 2017, set up a TP concentration limit to end on December 31, 2017. The TP concentration limit was in effect in previous NPDES permits for this Facility and was removed per TRU's request. Upon reviewing the 1995 Lake Wylie Total Maximum Daily Load (TMDL) permitting strategy and its recommended monthly average limit of 1.0 mg/I for TP, the Division reviewed the current data projected for the full design flow and has decided not to reinstate the concentration limit. The Lake Wylie permittees have focused on mass limits, which are acceptable under the TMDL. Therefore, the Division has determined to maintain the decision from the previous permit cycle. 2. Comment on Facility components list "The facility components listed in item 1 on page 2 of the draft permit do not fully reflect the components at Long Creek WWTP. The influent pump station is listed twice. Long Creek WWTP has two mechanical bar screens. Two aeration basins is not fully representative of four trains of anaerobic, anoxic and oxic basins that are part of these structures. The current version of the permit lists these as "dual basins for biological nutrient removal." Long Creek WWTP does not have two tertiary filters. There is one tertiary filter that includes 8 cells. One solid contact reactor exists but is not an operable part of the treatment system. Long Creek WWTP has an intermediate lift station and a waste activated sludge system that are not included in this list." Response: Thanks for noting this and providing additional information. The NPDES permit has been updated to reflect the components noted above. 3. Comment on Part I Section I A. (8.) 1 Reporting Requirements "Section I A. (8.) 1. of this draft permit requires that "Until such time as the state's eDMR application is compliant with EPA's Cross -Media Electronic Reporting Regulation (CROMERR), permittees will be required to submit all discharge monitoring data to the state electronically using eDMR and will be required to complete the eDMR submission by printing, signing, and submitting one signed original and a copy of the computer printed eDMR ..." The City of Gastonia has previously been informed that signed copies of the eDMR are no longer required to be submitted and asks that this section be removed if it is no longer applicable." Response: Thanks for noting this language error, the NPDES permit has been updated to reflect the following: "The Permittee shall report discharge monitoring data electronically using the NC DWR's Electronic Discharge Monitoring Report (eDMR) Internet application. Monitoring results obtained during the previous month(s) shall be summarized for each month and submitted monthly electronically using eDMR. The eDMR system allows permitted facilities to enter monitoring data and submit DMRs electronically using the Internet. The eDMR system may be accessed at: https://deq.nc.gov/about/divisions/water-resources/edmr If a permittee is unable to use the eDMR system due to a demonstrated hardship or due to the facility being physically located in an area where less than 10 percent of the households have broadband access, then a temporary waiver from the NPDES electronic reporting requirements may be granted, and discharge monitoring data may be submitted on paper DMR forms (MR 1, 1.1, 2, 3) or alternative" 4. Comment and clarification on Fiber glass issue "Section 1 of the Fact Sheet for this permit details an issue with plastics and fiberglass contamination. There was a fiberglass contamination issue at Long Creek WWTP, but the plastics issue resulting from Syncot Plastics occurred at Eagle Road WWTP. Due to these separate issues, biosolids at both wastewater plants were pressed and landfilled." Response: Thanks for providing clarification on this issue, the fact sheet for both permits have been updated to reflect the above. 5. Comment on Fact sheet section 12. TP "In Section 12 of the Fact Sheet for this permit under the parameter for Total Phosphorus, a MA of 1 mg/L is listed for "Current Permit Limits and Monitoring Frequency" but that limit was removed 12/31/2017. Monitor and Report should be listed in that section for Total Phosphorus." Response: Please see response to the comment 1 above. Comment from public member, Lisa Stroup: Comment: "Because NPDES Permit NC0020184 and NC0006033 are Wastewater Treatment Plants in Gaston County that discharges treated domestic and pretreated industrial wastewater to South Fork in the Catawba River Basin; and includes Ammonia, biochemical oxygen demand, dissolved oxygen, fecal coliform, pH, total residual chlorine, total nitrogen, total phosphorous, and total suspended solids are water quality limited parameters in both permits. I request that more stringent requirements and testing be implemented to further protect the water quality for citizens of this county and the State of NC. Continuing to implement only a minimum requirement for testing and monitoring and reporting requirements continues to place the public health, safety and welfare and the environment at undue risk because of the cumulative impact of other nearby industrial facilities and wastewater treatment facilities. NC currently has no regulations to avoid contamination and therefore has not adequately provided effective measures to protect nor enhance the water quality of the State of NC water. We can no longer accept the minimum requirements as sufficient protection for the public nor for the environment." Response: Thanks for your comment. We appreciate public input and understand your concerns. We, NCDEQ Municipal Permit Unit, follow and implement the current federal and state regulations to protect surface water quality. We issue permits to dischargers with limitations on wastewater flow and constituents. This process includes determining the quality and quantity of treated wastewater that the receiving stream can assimilate, incorporating input from stream modeling, collaborating with Regional Office staff, and evaluation of the discharger's location. Where appropriate, the NPDES program establishes limits for flow (quantity discharged), conventional pollutants (BOD, pH, TSS, fecal coliform, oil & grease, etc.), toxicants (metals, volatile organics, etc.), and non -conventional pollutants such as ammonia and nutrients. For more information about the NPDES process and links to forms, please visit the NPDES Permitting Process page. Please let us know if you have any questions.