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HomeMy WebLinkAboutNC0080071_Fact Sheet_20200709FACT SHEET FOR EXPEDITED PERMIT RENEWALS This form must be completed by Permit Writers for all expedited permits which do not require full Fact Sheets. Expedited permits are generally simple 100% domestics (e.g., schools, mobile home parks, etc) that can be administratively renewed with minor changes, but can include facilities with more complex issues (Special Conditions, 303(d) listed water, toxicity testing, instream monitoring, compliance concerns). Basic Information for Expedited Permit Renewals Permit Writer / Date Brianna Young 7/9/2020 Permit Number NCO080071 Facility Name / Facility Class Vanceboro WTP / PCNC Basin Name / Sub -basin number Neuse / 03-04-09 Receiving Stream / HUC UT to Mauls Swam / 030202020502 Stream Classification / Stream Segment C; Sw, NSW / 27-97-5.7 Does permit need Daily Maximum NH3 limits? N/A Does permit need TRC limits/language? Already resent Does permit have toxicity testing? IWC (%) if so Yes; IWC = 90% Does permit have Special Conditions? Yes — compliance schedule added during renewal Does permit have instream monitoring? No Is the stream impaired on 303 d list)? No Any obvious compliance concerns? Yes — failed toxicity tests Any permit mods since lastpermit? None New expiration date 4/30/2023 Comments on Draft Permit? Yes See Section 7 below Section 1. Facility Overview: The Vanceboro WTP operates an ion exchange WTP designed for a potable flowrate of 0.432 MGD. The facility generates backflow and filter regeneration with a intermittent discharge. The maximum, monthly average discharge between January 2017 and December 2019 was 0.016 MGD. Per the Washington Regional Office (via email 2/26/2020), the discharge goes to an effluent channel that consists of a ditch flowing along railroad tracks, therefore instream sampling would be problematic. WaRO also stated that the flow volume reported is based on the known, automated periodic backwash flow amount, hence why the flow volume is the same for each discharge. Per the previous permit factsheet: Raw well water is aerated and collected in a surge tank as demand dictates. From the tank, water is then pumped through a dual train pressure sand filter and water softener. As the treated well water exits the plant chlorine is added before entering the drinking water distribution system. No other chemicals are added. Filtered well water is used to intermittently backwash and rinse the sand filters and water softeners and is discharged to the permitted outfall. A bulk salt solution tank provides the regeneration salt solution to the softeners. There is one area storm drain connected to the permitted outfall that collects storm water from the grassy area adjacent to the treatment building. The operator initiates the backwash and rinse cycles based on treated water throughput and utilizes the influent flow meter to determine wastewater flows and to coordinate effluent sampling. Per Randy Sipe (WaRO, via email 2/26/2020): The reported discharge is the same because they base it on the known, automated periodic backwash flow amount. The discharge is to a effluent channel that consists of a ditch that flows along railroad tracks approx. 600 feet east to Maul Creek so instream sampling would be problematic. We have no comments on the discharge alternatives analysis. Per Harry Bailey (permittee representative; via email 3/13/2020), there are no drying beds as part of this facility, therefore there has been no solids handling historically and there are none proposed. Section 2. Compliance History: • No NOVs or enforcements in the previous 5 years • Failed 11 of last 12 toxicity tests A discharge alternatives analysis (DAA) was required in the previous permit renewal. This analysis was submitted with the permit renewal application. Per the DAA, the toxicity failures are due to chloride levels associated with regeneration of the softener. The facility evaluated the alternatives in the DAA and came to the following conclusions (no present worth cost analysis was completed for the alternatives): • Connect discharge to a WWTP: Based on discussions with WaRO staff, addition of the discharge from the WTP to the sanitary sewer system may create issues with the WWTP effluent. It is therefore not recommended as a viable alternative. A possible viable option would be the blending of raw water with the WTP discharge prior to entering the sanitary sewer system. This would reduce the chloride concentration in the flow along with other contaminants of concern and not create any issues with regard to permitted capacity at the WWTP. Conversations with WaRO staff have indicated that this would not be a permitted alternative. • Obtain a non -discharge permit: In accordance with the Engineering Alternatives Analysis (EAA) Guidance Document provided by NCDEQ, waste streams from ion exchange treatment units do not have to be evaluated for land application. Discharge high in salt concentration is typically not suitable for land application, as excess salts can adversely affect plants via osmotic effect; specific ion toxicity; and soil particle dispersion, which reduces soil permeability and the water infiltration rate. The waste brine is not suitable for irrigation or landscape irrigation. State of North Carolina code 15A NCAC 02U .1101 prohibits discharge to saltwater wetlands, so this discharge alternative is not available. Additionally, the quality of the discharge would prohibit the use of the discharge for non- potable uses. The brine content does not allow the beneficial use of this waste stream for reuse application. Wastewater reuse is not a feasible alternative for disposal of this discharge. • Install wastewater treatment: A candidate treatment technology for removal of chlorides is reverse osmosis (RO) technology. However, with such a high chloride content in the feed water, the RO system would need very high pressure and the percent recovery through the process would be 75% or less. Thus, RO process would produce a discharge with a concentrate still requiring discharge to a large water body. There are evaporative type systems that could evaporate the water off the brine wastewater to produce a solid (salt), but they are energy intensive and expensive. Thus, the RO treatment and/or brine evaporation option does not solve the original discharge problem and is not economically feasible. • Use alternative water treatment source: Due to the CCPCUA Rules, the Craven County water system has been subject to withdrawal reductions since 2008. The 2018 Local Water Supply Plan indicates that demand as percent of supply is approximately 60% and will approach 80% between 2040 and 2050. At this time, it does not appear that this would be viable alternative source. The Division of Water Resources may not permit new groundwater sources located in deeper aquifers that are subject to the CCPCUA Rules. Since there are no public water supply wells located in the deeper aquifers in this area of Craven County, it is not known what raw water quality may exist or what treatment may be required. This alternative would require two new groundwater wells being installed along with the possible construction of a new water treatment plant that would have a discharge. Due to the amount of required infrastructure, this alternative is not financially feasible. • Use alternative treatment method: In effect, this would mean eliminating the softener (and ion exchange) and using a different technology that does not produce the brine/salt discharge in the form of RO. However, these technologies produce a brine/ saline discharge in the form of concentrate stream that must be disposed of. Thus, use of nanofiltration or RO would need to be combined with a large water body discharge to be applicable. This alternative does not solve the original discharge problem and is not economically feasible. • Discharge to a larger waterbody/perform a dilution model: Due to the salty nature of the discharges, the best choice for a new discharge location would be to a tidally influenced area where the salinity of the discharge will not have as great an impact. A larger water body around the Town of Vanceboro is the Neuse River. The Neuse River is located south of the Town of Vanceboro. The advantage to a new discharge into Neuse River segment 27-(96) is that it is classified SC; Sw; NSW. A discharge to SC waters would change the WET test requirements and also chloride limits. A discharge force main from the WTP would be approximately 8 miles. Due to the amount of required infrastructure, this alternative is not financially feasible. • Combination of alternatives: Each of the alternatives stated above either do not solve the original discharge problem and/or are not financially feasible for the Town of Vanceboro. Therefore, a combination of these alternatives would also not solve the original discharge problem and/or would not be financially feasible. The Town indicated they would prefer to work with DWR on a new sampling procedure, but if that is not possible, then the Town would like to install an approximately 20,000 gallon holding tank with a mixer to properly combine the filter backwash and softener regeneration prior to discharge. Section 3. RPA: The maximum monthly average flow between January 2017 and March 2020 was 0.016 MGD (the same flow volume was reported every month as the permittee bases flow reporting on the known, automated periodic backwash flow amount). Effluent hardness sampling was conducted by the permittee from 5/9/2020 through 5/14/2020. Hardness values were reported as: • 5/9/20: 238 mg/L • 5/10/20: 238 mg/L • 5/12/20: 425 mg/L • 5/13/20: 408 mg/L • 5/14/20: 391 mg/L Per 15A NCAC 02B .0211 (1 1)(c)(i), the maximum hardness concentration that can be used when determining limits for hardness -dependent metals in class C waters is 400 mg/L. Chloride — RP; limits with monthly monitoring applied as reasonable potential to exceed water quality standards Copper — No RP; monitoring maintained at quarterly as monitoring data indicates copper has the potential to be discharged Zinc — No RP; monitoring maintained at quarterly as monitoring data indicates zinc has the potential to be discharged Section 4. NCG59 General Permit Eligibility: • They use IE treatment technology, therefore they are not eligible • Conclusion: They are not eligible for the NCG59 Section 5. Changes from previous permit to draft: • Updated eDMR footnote inA(1) and language in A(4) • Updated outfall map • Updated Cover Sheet to reflect Parts I, II, III, and IV as boilerplate has 4 sections • Updated expiration date per basin schedule — permit has been short -cycled due to this • Updated language on the Supplement to Permit Cover Sheet • Added components list on Supplement to Permit Cover Sheet • Added facility grade and citation in A(1) • Added parameter codes in A(1) • Limits added and monitoring increased to monthly for chloride in A(1) per RPA o Compliance schedule added as A(3) • Monitoring for iron removed in A(1) as there are no longer water quality standards • Added effluent monitoring and associated footnote for total hardness in A(1) as there are hardness dependent metals • Updated eDMR, flow, TRC, and tox footnotes in A(1) • Toxicity language updated in A(2) • Discharge alternatives analysis was completed so former condition A(3) has been removed Section 6. Changes from draft to final: • eDMR footnote corrected in A(1) to reference correct condition • TRC footnote updated in A(1) to reference optional monitoring as permittee stated chlorine is not in the effluent • Compliance schedule in A(3) has been updated to end when the permit expires based on WaRO comments • eDMR condition A(4) updated to current language used Section 7. Comments received on draft permit: • Randy Sipe (WaRO, via email 6/2/2020): o The permit expiration date given on the title page is 4/30/23. Isn't it standard practice for permits to be valid for 5 years, especially since the total chloride compliance schedule in Section A. (3) extends out for 5 years. ■ DWR Response: The permit has been shortcyled in order to get it back on the proper basin permitting schedule. The compliance schedule can be corrected to expire with the permit in 2023. o The cover letter and Section A. (1) describe requiring effluent and instream monitoring for hardness to be used for calculation of permit limits for zinc and copper; however; the permit does not include any limits for these metals. If the permit does not have limits for these metals, why should the permittee have to go through the exercise of the hardness monitoring. ■ DWR Response: As monitoring for hardness dependent metals is in the permit, and the facility discharges to freshwater, hardness sampling will need to be conducted in order to determine any future permit limits. o Footnote I on the effluent monitoring table in Section A.(1) should reference the electronic reporting requirements in Section A.(4), not A.(3). ■ DWR Response: This error will be corrected in the final permit. • Harry Bailey (representative for the permittee; via email 6/17/20): o The first is regarding the Total Residual Chlorine monitoring requirement. The WTP utilizes raw water to backwash the filters and regenerate the softeners. There is no chlorine in the effluent. It is my understanding that the previous Town Clerk spoke to Ron Berry after the last permit was issued and the sampling for that characteristic was no longer required. Don't think the permit was revised/modified. Please let me know if there is anything that the Town can provide to have this requirement removed from the permit. ■ DWR Response: Based on monitoring data provided to the Division, the Town of Vanceboro has not been monitoring for Total Residual Chlorine. A review of the Division's database shows that monitoring is optional. The Total Residual Chlorine footnote in Section A. (1) will be updated to reflect this optional monitoring. o The second is regarding the new Total Chloride monitoring requirement and the accompanying Schedule of Compliance A. (3). It states that a Corrective Action Plan is to be submitted within one year summarizing actions or strategy to achieve compliance. Is there any guidance for what should or must be included in the Corrective Action Plan? Any examples? ■ DWR Response: There is not specific guidance regarding what is required of a Corrective Action Plan. Each WTP facility is allowed to create a CAP that is reflective of the efforts that work best for their specific facility to address elevated pollutant discharge concentrations. 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, µg/1 (Dissolved) Chronic SW, µg/1 (Dissolved) Arsenic 340 150 69 36 Beryllium 65 6.5 --- --- Cadmium Calculation Calculation 40 8.8 Chromium III Calculation Calculation --- --- Chromium VI 16 11 1100 50 Copper Calculation Calculation 4.8 3.1 Lead Calculation Calculation 210 8.1 Nickel Calculation Calculation 74 8.2 Silver Calculation 0.06 1.9 0.1 Zinc Calculation Calculation 90 81 Table 1 Notes: 1. FW= Freshwater, SW= Saltwater 2. Calculation = Hardness dependent standard 3. Only the aquatic life standards listed above are expressed in dissolved form. Aquatic life standards for Mercury and selenium are still expressed as Total Recoverable Metals due to bioaccumulative concerns (as are all human health standards for all metals). It is still necessary to evaluate total recoverable aquatic life and human health standards listed in 15A NCAC 213.0200 (e.g., arsenic at 10 µg/l 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/1 Cadmium,Acute WER*{1.136672-[lnhardness](0.041838)] e^{0.9151 [ln hardness]-3.1485} Cadmium, Acute Trout waters WER* {1.136672-[ln hardness](0.041838)] e^{0.9151 [ln hardness]-3.6236} Cadmium,Chronic WER* {1.101672-[ln hardness](0.041838)] e^{0.7998[ln hardness]-4.4451 } Chromium III, Acute WER*0.316 e^{0.8190[lnhardness]+3.7256} Chromium III, Chronic WER*0.860 e^{o.8190[lnhardness]+0.6848} Copper, Acute WER*0.960 e^10.9422[ln hardness]-1.7001 Copper, Chronic WER*0.960 e^10.8545[ln hardness]-1.7021 Lead, Acute WER* 11.46203-[ln hardness](0.145712)) • e^11.273 [In hardness]-1.4601 Lead, Chronic WER*11.46203-[ln hardness](0.145712)) • e^11.273[In hardness]-4.705} Nickel, Acute WER*0.998 • e^10.8460[ln hardness]+2.2551 Nickel, Chronic WER*0.997 • e^10.8460[ln hardness]+0.05841 Silver, Acute WER*0.85 • e^11.72[ln hardness]-6.591 Silver, Chronic Not applicable Zinc, Acute WER*0.978 e^10.8473[ln hardness]+0.8841 Zinc, Chronic WER*0.986 e^10.8473[ln hardness]+0.8841 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, 7Q 10 (the spreadsheet automatically calculates the IQ 10 using the formula IQ 10 = 0.843 (s7Q 10, CfS) 0.993 • Effluent hardness and upstream hardness, site -specific data is preferred • Permitted flow • Receiving stream classification 2. In order to establish the numeric standard for each hardness -dependent metal of concern and for each individual discharge, the Permit Writer must first determine what effluent and instream (upstream) hardness values to use in the equations. The permit writer reviews DMR's, Effluent Pollutant Scans, and Toxicity Test results for any hardness data and contacts the Permittee to see if any additional data is available for instream hardness values, upstream of the discharge. If no hardness data is available, the permit writer may choose to do an initial evaluation using a default hardness of 25 mg/L (CaCO3 or (Ca + Mg)). Minimum and maximum limits on the hardness value used for water quality calculations are 25 mg/L and 400 mg/L, respectively. If the use of a default hardness value results in a hardness -dependent metal showing reasonable potential, the permit writer contacts the Permittee and requests 5 site -specific effluent and upstream hardness samples over a period of one week. The RPA is rerun using the new data. 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) x (s7Q 10, cfs *Avg. Upstream Hardness, mjg/L) (Permitted Flow, cfs + s7Q 10, cfs) The Combined Hardness for acute is the same but the calculation uses the IQ 10 flow. 3. The permit writer converts the numeric standard for each metal of concern to a total recoverable metal, using the EPA Default Partition Coefficients (DPCs) or site -specific translators, if any have been developed using federally approved methodology. EPA default partition coefficients or the "Fraction Dissolved" converts the value for dissolved metal at laboratory conditions to total recoverable metal at in -stream ambient conditions. This factor is calculated using the linear partition coefficients found in The Metals Translator: Guidance for Calculating a Total Recoverable Permit Limit from a Dissolved Criterion (EPA 823-B-96-007, June 1996) and the equation: Caiss = 1 Ctotal I + { [Kpo] [Ss('+a)] [10-6] } Where: ss = in -stream suspended solids concentration [mg/1], minimum of 10 mg/L used, and Kpo and a = constants that express the equilibrium relationship between dissolved and adsorbed forms of metals. A list of constants used for each hardness -dependent metal can also be found in the RPA program under a 4. The numeric standard for each metal of concern is divided by the default partition coefficient (or site -specific translator) to obtain a Total Recoverable Metal at ambient conditions. In some cases, where an EPA default partition coefficient translator does not exist (ie. silver), the dissolved numeric standard for each metal of concern is divided by the EPA conversion factor to obtain a Total Recoverable Metal at ambient conditions. This method presumes that the metal is dissolved to the same extent as it was during EPA's criteria development for metals. For more information on conversion factors see the June, 1996 EPA Translator Guidance Document. 5. The RPA spreadsheet uses a mass balance equation to determine the total allowable concentration (permit limits) for each pollutant using the following equation: Ca = (s7Q 10 + Qw)(Cwgs) — (s7Q 10) (Cb) Qw Where: Ca = allowable effluent concentration (µg/L or mg/L) Cwqs = NC Water Quality Standard or federal criteria (µg/L or mg/L) Cb = background concentration: assume zero for all toxicants except NH3* (µg/L or mg/L) Qw = permitted effluent flow (cfs, match s7Q 10) s7Q 10 = summer low flow used to protect aquatic life from chronic toxicity and human health through the consumption of water, fish, and shellfish from noncarcinogens (cfs) * Discussions are on -going with EPA on how best to address background concentrations Flows other than s7Q 10 may be incorporated as applicable: IQ 10 = used in the equation to protect aquatic life from acute toxicity 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 Facility data submitted during (mg/L) 340 mg/L renewal [Total as, CaCO3 or (Ca+Mg)] Average Upstream Hardness No facility data provided (mg/L) 25 mg/L [Total as, CaCO3 or (Ca+Mg)] 7Q 10 summer (cfs) 0 cfs No flow data in BIMS 1Q10 (cfs) 0 cfs No flow data in BIMS Permittee bases flow reporting Permitted Flow (MGD) 0.016 on the known, automated periodic backwash flow amount 368537 Affidavit of Publication 15513156 New Bern Sun Journal Page 1 of 2 New Bern, NC Personally appeared before me, a Notary Public of the County of Craven, State of North Carolina, on this the 5th day of June, 2020 L 4YIA of The Sun Journal, who being duly sworn, states that the advertisement entitled Wastewater Permit NCO080071 Vanceboro WTP a true copy of which is printed herewith, appeared in The Sun Journal, a newspaper published in the City of New Bern, NC, County of Craven, State of North Carolina, 1 day a week for _ weeks on the following dates: June 5, 2020 NORTH CAROLINA CRAVEN COUNTY As required by the laws of the State of North Carolina, New Bern Sun Journal meets the requirements of NC statute 1-597 as the newspaper of record for Craven County. PUBLIC NOTICE NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION/NPDES UNIT 1617 MAIL SERVICE CENTER RALEIGH, NC 27699-1617 NOTICE OF INTENT TO ISSUE A NPDES WASTEWATER PERMIT NCO080071 VANCEBORO WTP The North Carolina Environmental Management Commission proposes to issue a NPDES wastewater discharge permit to the person(s) listed below. Written comments regarding the proposed permit will be accepted until 30 days after the publish date of this notice. The Director of the NC Division of Water Resources (DWR) may hold a public hearing should there be a significant degree of public interest. Please mail comments and/or information requests to DWR at the above address. Interested persons may visit the DWR at 512 N. Salisbury Street, Raleigh, NC to review information on file. Additional information on NPDES permits and this notice may be found on our website: http://deq. nc.gov/about/divisions/water-resources/water-resources-permits/wastewater-branch/npdes-wastewater/public -noti ces,or by calling (919)707-3601. Town of Vanceboro has requested renewal of its NPDES permit NCO080071 for the Va an unnamed tributary to Mauls Swamp in the Neuse River Basin. This discharge may affect future allocations in this portion of the Neuse River Basin. June 5, 2020 (adv) 368537 15513156 Page 2 of 2 Affidavit of Publication New Bern Sun Journal New Bern, NC Subscribed and sworn to this 5th day of June, 2020 1 X` of ry Public L sion �•._F rpTARY `�' Otis ••:�pnY �'.�' Young, Brianna A From: Harry Bailey <potablewatersolutions@yahoo.com> Sent: Wednesday, June 17, 2020 4:46 PM To: Young, Brianna A Subject: [External] Town of Vanceboro (Permit NC0080071) External email. Do not click links or open attachments unless you verify. Send all suspicious email as an attachment to report.spam@nc.gov Ms. Young, Hope you are doing well this afternoon. Reviewed the draft permit issued for the Town of Vanceboro with their staff and we had a couple questions/comments. The first is regarding the Total Residual Chlorine monitoring requirement. The WTP utilizes raw water to backwash the filters and regenerate the softeners. There is no chlorine in the effluent. It is my understanding that the previous Town Clerk spoke to Ron Berry after the last permit was issued and the sampling for that characteristic was no longer required. Don't think the permit was revised/modified. Please let me know if there is anything that the Town can provide to have this requirement removed from the permit. The second is regarding the new Total Chloride monitoring requirement and the accompanying Schedule of Compliance A.(3). It states that a Corrective Action Plan is to be submitted within one year summarizing actions or strategy to achieve compliance. Is there any guidance for what should or must be included in the Corrective Action Plan? Any examples? Thanks for all your help and look forward to your reply. Have a great evening! Harry Potable Water Solutions, LLC 252-945-8948 Freshwater RPA - 95% Probability/95% Confidence Using Metal Translators MAXIMUM DATA POINTS = 58 rREQUIRED DATA ENTRY Table 1. Project Information Facility Name WWTP/WTP Class NPDES Permit Outfal I Flow, Qw (MGD) Receiving Stream HUC Number Stream Class ❑ CHECK IF HQW OR ORW WQS Vanceboro WTP PCNC NCO080071 001 0.016 UT to Mauls Swamp 030202020502 C; Sw NSW ❑ Apply WS Hardness WQC 7Q10s (cfs) 7Q10w (cfs) 30Q2 (cfs) CIA (cfs) 1Q10s (cfs) 0.00 0.00 0.00 0.00 0.00 Effluent Hardness ---- Upstream Hardness Combined Hardness Chronic Combined Hardness Acute 333.4 mg/L (Avg) -------------------- 25 mg/L (Avg) 333.4 m /L 333.4 m /L Data Source(s) I —I CHECK TO APPLY MODEL Par01 Par02 Par03 Par04 Par05 Par06E Par07 Par08 Par09 Par10 Par11 Par12 Par13 Par14 Par15 Par16 Par17 Par18 Par19 Par20 Par21 Par22 Par23 Par24 Table 2. Parameters of Concern Name wos Type Chronic Modifier Acute PQL Units Arsenic Aquactic Life C 150 FW 340 ug/L Arsenic Human Health Water Supply C 10 HH/WS N/A ug/L Beryllium Aquatic Life NC 6.5 FW 65 ug/L Cadmium Aquatic Life NC 4.1585 FW 30.9235 ug/L Chlorides Aquatic Life NC 230 FW mg/L. 11, Chlorinated Phenolic Compounds Water Supply NC 1 A ug/L Total Phenolic Compounds Aquatic Life NC 300 A ug/L Chromium III Aquatic Life NC 982.4094 FW 7552.3791 ug/L Chromium VI Aquatic Life NC 11 FW 16 pg/L Chromium, Total Aquatic Life NC N/A FW N/A pg/L Copper Aquatic Life NC 72.0934 FW 120.2343 ug/L Cyanide Aquatic Life NC 5 FW 22 10 ug/L Fluoride Aquatic Life NC 1,800 FW ug/L Lead Aquatic Life NC 49.3231 FW 1265.7157 ug/L Mercury Aquatic Life NC 12 FW 0.5 ng/L Molybdenum Human Health NC 2000 HH ug/L Nickel Aquatic Life NC 333.1810 FW 2999.7629 pg/L Nickel Water Supply NC 25.0000 WS N/A pg/L Selenium Aquatic Life NC 5 FW 56 ug/L Silver Aquatic Life NC 0.06 FW 25.5223 ug/L Zinc Aquatic Life NC 1137.9561 FW 1128.7232 ug/L NCO080071 FW RPA 2020, input 7/9/2020 H1 1 2 3 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 REASONABLE POTENTIAL ANALYSIS H2 Use "PASTE SPECIAL Effluent Hardness Values then "COPY" Maximum data Upstream Hardness . points = 58 Use "PASTE SPECIAL Values" then "COPY' . Maximum data points = 58 Date Data BDL=1/2DL Results I Date Data BDL=1/2DL Results 5/9/2020 238 238 Std Dev. 87.1654 1 25 25 Std Dev. N/A 5/10/2020 238 238 Mean 333.4000 2 Mean 25.0000 5/12/2020 400 400 C.V. (default) 0.6000 3 C.V. 0.0000 5/13/2020 400 400 n 5 4 n 1 5/14/2020 391 391 10th Per value 238.00 mg/L 5 10th Per value 25.00 mg/L Average Value 333.40 mg/L 6 Average Value 25.00 mg/L Max. Value 400.00 mg/L 7 Max. Value 25.00 mg/L 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 NCO080071 FW RPA 2020, data -2- 7/9/2020 REASONABLE POTENTIAL ANALYSIS Par05 Date Data 1 9/15/2015 2 12/8/2015 3 3/3/2016 4 6/9/2016 5 9/20/2016 6 12/13/2016 7 3/14/2017 8 6/13/2017 9 9/19/2017 10 12/12/2017 11 3/13/2018 12 6/8/2018 13 6/14/2018 14 9/25/2018 15 12/11/2018 16 3/19/2019 17 6/18/2019 18 9/17/2019 19 12/10/2019 20 3/17/2020 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 Chlorides BDL=1/2DL Results 7400 7400 Std Dev. 9590 9590 Mean 25 25 C.V. 6050 6050 n 5650 5650 6500 6500 Mult Factor = 7120 7120 Max. Value 7550 7550 Max. Fred Cw 5850 5850 6200 6200 9100 9100 7 7 8150 8150 5050 5050 5370 5370 6950 6950 5750 5750 3500 3500 6550 6550 7450 7450 Use "PASTE SPECIAL- Pall Values" then "COPY" . Maximum data points = 58 5,990.6 0.4119 20 1.3 9590.0 mg/L 11,987.5 mg/L Date Data 1 9/15/2015 2 12/8/2015 < 3 3/3/2016 < 4 6/14/2016 < 5 9/20/2016 < 6 12/13/2016 < 7 3/14/2017 < 8 6/13/2017 < 9 9/19/2017 < 10 12/12/2017 < 11 3/13/2018 < 12 6/8/2018 < 13 6/14/2018 < 14 9/25/2018 15 12/11/2018 < 16 3/19/2019 < 17 6/18/2019 < 18 9/17/2019 < 19 12/10/2019 20 3/17/2020 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 Copper BDL=1/2DL Results 13 13 Std Dev. 10 5 Mean 10 5 C.V. 10 5 n 10 5 10 5 Mult Factor = 10 5 Max. Value 10 5 Max. Pred Cw 10 5 10 5 10 5 10 5 10 5 16 16 10 5 10 5 10 5 10 5 19 19 15 15 Use "PASTE SPECIAL Values" then "COPY" . Maximum data points = 58 7.1500 0.6325 20 1.38 19.00 ug/L 26.22 ug/L -3- NCO080071 FW RPA 2020, data 7/9/2020 REASONABLE POTENTIAL ANALYSIS Par21 Use "PASTE SPECIAL Zinc Values" then "COPY" . Maximum data points = 58 1 2 3 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 Date Data BDL=1/2DL Results 9/15/2015 < 10 5 Std Dev. 12/8/2015 < 10 5 Mean 3/3/2016 11 11 C.V. 6/14/2016 11 11 n 9/20/2016 < 10 5 12/13/2016 < 10 5 Mult Factor = 3/14/2017 < 10 5 Max. Value 6/13/2017 < 10 5 Max. Fred Cw 9/19/2017 < 10 5 12/12/2017 < 10 5 3/13/2018 < 10 5 6/8/2018 < 10 5 6/14/2018 13 13 9/25/2018 26 26 12/11/2018 32 32 3/19/2019 < 10 5 6/18/2019 24 24 9/17/2019 19 19 12/10/2019 30 30 3/17/2020 36 36 12.8500 0.8405 20 1.51 36.0 ug/L 54.4 ug/L -4- NC0080071 FW RPA 2020, data 7/9/2020 Vanceboro WTP - Outfall 001 NCO080071 Freshwater RPA - 95% Probability/95% Confidence Using Metal Translators Qw = 0.016 MGD MAXIMUM DATA POINTS = 58 Qw (MGD) = 0.0160 WWTP/WTP Class: PCNC 1Q10S (cfs) = 0.00 IWC% @ 1Q10S = 100 7Q10S (cfs) = 0.00 IWC% @ 7Q10S = 100 7Q10W (cfs) = 0.00 IWC% @ 7Q10W = 100 30Q2 (cfs) = 0.00 IWC% @ 30Q2 = 100 Avg. Stream Flow, QA (cfs) = 0.00 rW%C @ QA = 100 Receiving Stream: UT to Mauls Swamp HUC 030202020502 Stream Class: C; Sw NSW COMBINED HARDNESS (mg/L) Acute = 333.4 mg/L Chronic = 333.4 mg/L PARAMETER NC STANDARDS OR EPA CRITERIA REASONABLE POTENTIAL RESULTS RECOMMENDED ACTION TYPE J a D Applied Chronic Acute n # Det. Max Pred Cw Allowable Cw d StandAcute: NO WQS Chlorides NC 230 FW mg/L 20 20 11,987.5 Chronic: 230.0 RP shown - apply Monthly Monitoring with Limit 18 values > Allowable Cw Acute: 120.23 No RP, Predicted Max < 50% of Allowable Cw - Copper NC 72.0934 FW 120.2343 ug/L 20 4 26.22 monitoring maintained at quarterly No RP, Predicted Max < 50% of Allowable Cw - Chronic: 72.09 No value > Allowable Cw monitoring maintained at quarterly Acute: 1,128.7 No RP, Predicted Max < 50% of Allowable Cw - Zinc NC 1137.9561 FW 1128.7232 ug/L 20 9 54.4 1 monitoring maintained at quarterly Chronic: 1,138.0 INo RP, Predicted Max < 50% of Allowable Cw - No value > Allowable Cw monitoring maintained at quarterly NCO080071 FW RPA 2020, rpa Page 5 of 50 7/9/2020 NH3/TRC WLA Calculations Facility: Vanceboro WTP PermitNo. NCO080071 Prepared By: Brianna Young Enter Design Flow (MGD): 0.016 Enter s7Q10 (cfs): 0 Enter w7Q10 (cfs): 0 Total Residual Chlorine (TRC) Daily Maximum Limit (ug/1) Ammonia (Summer) Monthly Average Limit (mg NH3-N/1) s7Q10 (CFS) 0 s7Q10 (CFS) 0 DESIGN FLOW (MGD) 0.016 DESIGN FLOW (MGD) 0.016 DESIGN FLOW (CFS) 0.0248 DESIGN FLOW (CFS) 0.0248 STREAM STD (UG/L) 17.0 STREAM STD (MG/L) 1.0 Upstream Bkgd (ug/1) 0 Upstream Bkgd (mg/1) 0.22 IWC (%) 100.00 IWC (%) 100.00 Allowable Conc. (ug/1) 17 Allowable Conc. (mg/1) 1.0 Ammonia (Winter) Monthly Average Limit (mg NH3-N/1) Fecal Coliform w7Q10 (CFS) 0 Monthly Average Limit: 200/100ml DESIGN FLOW (MGD) 0.016 (If DF >331; Monitor) DESIGN FLOW (CFS) 0.0248 (If DF<331; Limit) STREAM STD (MG/L) 1.8 Dilution Factor (DF) 1.00 Upstream Bkgd (mg/1) 0.22 IWC (%) 100.00 Allowable Conc. (mg/1) 1.8 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/l, Monitor Only 2. Monthly Avg limit x 3 = Weekly Avg limit (Municipals) 3. Monthly Avg limit x 5 = Daily Max limit (Non-Munis) If the allowable ammonia concentration is > 35 mg/L, no limit shall be imposed Fecal Coliform 1. Monthly Avg limit x 2 = 400/100 ml = Weekly Avg limit (Municipals) = Daily Max limit (Non -Muni) Whole Effluent Toxicity Testing and Self Monitoring Summary Town of Plymouth WTP NC0002313/001 County: Washington Region: WARO Basin: ROA09 Mar Jun Sep Dec Ceri7dPF Begin: 10/1/2007 Chr Monit: 90% NonComp: 7Q10: PF: na IWC: Freq: Q J F M A M J J A S O 2016 - - H - - H - - H - 2017 - - H - - H - - H - 2018 - - H - - H - - H - 2019 - - H - - H - - Pass - Town of Vanceboro WTP NCO080071 County: Craven Region: WARO Basin: NEU09 Mar Jun Sep Dec Ceri7dPF Begin: 3/1/2015 Chr Monit: 90% NonComp: 7Q10: PF: 0.016 IWC: Freq: Q J F M A M J J A S O 2016 - - Fail - - Fail - - Pass - 2017 - - Fail - - Fail - - Fail - 2018 - - Fail - - Pass - - Fail - 2019 - - Fail - - Fail - - Fail - Transmontaigne Charlotte Paw Creek #1 NC0005771/001 County: Mecklenburg Region: MRO Basin: CTB34 Fthd24Ac Begin: 9/1/2015 24hr LC50 ac monit a NonComp: 7Q10: 0.0 PF: VARIE IWC: 100 Freq: A J F M A M J J A S O 2016 >100 - - - - - - - - - 2017 - >100 - - - - - - - - 2019 - >100 - - - - - - - - TransMontaigneTerminaling/Selma NC0003549/002 County: Johnston Region: RRO Basin: NEU02 Fthd24Ac Begin: 6/1/2008 24hr LC50 ac monit a NonComp: 7Q10: 0.0 PF: VAR IWC: 100 Freq: A J F M A M J J A S O 2016 - >100 - - - - - - - - 2016 - >100 - - - - - - - - 2017 - - - >100 - - - - - - 2017 - - - >100 - - - - - - 2019 - - >100 - - - - - - - 2019 - - >100 - - - - - - - Transmontaigne-Blanchard Company NCO021971/009 County: Mecklenburg Region: MRO Basin: CTB34 Fthd24PF Begin: 7/1/2015 Ac LC50 Monit: Epis F NonComp: 7Q10: 0.0 PF: VAR IWC: 100 Freq: A J F M A M J J A S O 2016 >100 - - - - - - - - - 2017 - - - - - >100 - - - - 2017 - - - - - >100 - - - - 2018 - >100 - - - - - - - - 2018 - >100 - - - - - - - - 2019 - >100 - - - - - - - - 2019 - >100 - - - - - - - - SOC JOC: N SOC JOC: N SOC JOC: N SOC JOC: N SOC JOC: N D H H H H D Fail Fail Fail Fail C C C Leeend: P= Fathead minnow (Pimohales oromelas). H=No Flow (facilitv is active). s = Solit test between Certified Labs Page 98 of 109 MONITORING REPORT(MR) VIOLATIONS for: Report Date: 02/20/20 Page: 1 of 1 Permit: nc0080071 MRS Between 12 - 2015 and 2 - 2020 Region: % Violation Category% Program Category: Facility Name: % Param Name % County: % Subbasin:% Violation Action: % Major Minor: % L pr PERMIT: NCO080071 FACILITY: Town of Vanceboro - Vanceboro WTP COUNTY: Craven REGION: Washington Limit Violation MONITORING VIOLATION UNIT OF CALCULATED % REPORT OUTFALL LOCATION PARAMETER DATE FREQUENCY MEASURE LIMIT VALUE Over VIOLATION TYPE VIOLATION ACTION 01 -2019 001 Effluent Solids, Total Suspended - 01/31/19 2 X month mg/I 30 32 6.7 Monthly Average No Action, BPJ Concentration Exceeded 02 -2019 001 Effluent Solids, Total Suspended - 02/28/19 2 X month mg/I 30 32.5 8.3 Monthly Average No Action, BPJ Concentration Exceeded Monitoring Violation MONITORING VIOLATION UNIT OF CALCULATED % REPORT OUTFALL LOCATION PARAMETER DATE FREQUENCY MEASURE LIMIT VALUE Over VIOLATION TYPE VIOLATION ACTION 04 - 2016 001 Effluent Flow, in conduit or thru 04/02/16 Weekly mgd treatment plant 07 - 2017 001 Effluent Flow, in conduit or thru 07/01/17 Weekly mgd treatment plant 03 -2019 001 Effluent Flow, in conduit or thru 03/02/19 Weekly mgd treatment plant 12-2015 001 Effluent Nitrogen, Total- 12/31/15 Semi-annually mg/I Concentration 12-2016 001 Effluent Pass/Fail Static Renewal 12/31/16 Quarterly pass/fail 7Day Chronic Ceriodaphnia 12-2015 001 Effluent Phosphorus, Total (as P)- 12/31/15 Semi-annually mg/I Concentration Frequency Violation No Action, Facility Reporting Error Frequency Violation No Action, BPJ Frequency Violation No Action, Facility Reporting Error Frequency Violation No Action, Facility Reporting Error Frequency Violation No Action, BPJ Frequency Violation No Action, Facility Reporting Error Young, Brianna A From: Harry Bailey <potablewatersolutions@yahoo.com> Sent: Tuesday, May 19, 2020 7:03 AM To: Young, Brianna A Subject: Re: [External] Town of Vanceboro WTP External email. Do not click links or open attachments unless you verify. Send all suspicious email as an attachment to report.spam@nc.gov Ms. Young, Thanks for your email and here is the data that you requested: 5/9 - 238 mg/l 5/ 10 - 238 mg/l 5/ 12 - 425 mg/l 5/ 13 - 408 mg/l 5/ 14 - 391 mg/l I hope you have a great Tuesday! Harry Potable Water Solutions, LLC 252-945-8948 On Monday, May 18, 2020, 10:05:29 AM EDT, Young, Brianna A <brianna.young@ncdenr.gov> wrote: If you could just provide the dates the samples were taken, as well as confirm the units the data was reported in, that will be sufficient. Thank you, Brianna Brianna Young Environmental Specialist II Compliance and Expedited Permitting Branch Division of Water Resources Department of Environmental Quality 1 Office: 919-707-3619 Brian na.Young(c�ncdenr.gov Mailing address: 1617 Mail Service Center Raleigh, NC 27699-1617 Email correspondence to and from this address is subject to the North Carolina Public Records Law and may be disclosed to third parties. From: Harry Bailey<potablewatersoIutions@yahoo.com> Sent: Monday, May 18, 2020 10:02 AM To: Young, Brianna A <Brianna.Young@ncdenr.gov> Subject: Re: [External] Town of Vanceboro WTP CAUTION: Ms. Young, Good morning and hope you had a great weekend. The hardness readings were obtained utilizing a Hach test kit which you stated was acceptable. There are no lab data sheets. Don't know of any other form of documentation that the Town or I could provide. Please let me know if there is anything additional that you need to complete your review. Thanks for all your help and have a great day! Harry Potable Water Solutions, LLC 252-945-8948 On Monday, May 18, 2020, 07:49:55 AM EDT, Young, Brianna A <brianna.young(@ncdenr.gov> wrote: Harry, Could you please send me the lab data sheets with this information? Or some form of documentation along those lines if such is available? Thank you, Brianna Young Environmental Specialist II Compliance and Expedited Permitting Branch Division of Water Resources Department of Environmental Quality Office: 919-707-3619 Brian na.Young(Dncdenr.gov Mailing address: 1617 Mail Service Center Raleigh, NC 27699-1617 Email correspondence to and from this address is subject to the North Carolina Public Records Law and may be disclosed to third parties. From: Harry Bailey<potablewatersolutions(a�yahoo.com> Sent: Friday, May 15, 2020 2:03 PM To: Young, Brianna A <Brianna.Young(@ncdenr.gov> Subject: [External] Town of Vanceboro WTP �xternal t GW ink& jX open attachments unless you verify. Send all suspic' rep Ms. Young, Hope you are doing well and are having a great Friday. It appears that the effluent hardness levels collected from the WTP discharge are as follows: 238, 238, 391, 408 and 425. I would assume that the IOth percentile would be 238 since the two lowest numbers are the same. Let me know if that is a correct calculation and what will be the proposed copper limits. Please let me know if you need additional information and I hope you have a great weekend! Harry Potable Water Solutions, LLC 252-945-8948 Young, Brianna A From: Harry Bailey <potablewatersolutions@yahoo.com> Sent: Friday, March 13, 2020 10:21 AM To: Young, Brianna A Cc: Bullock, Robert Subject: [External] Town of Vanceboro, Craven County (NC0080071) CAUTION:I email. Do not click links or open attachments unless you verify. Send all suspicious email as an attachment to c. ov Ms. Young, Haven't spoken to you in some time and I hope you are doing well. Recently the Town of Vanceboro received a letter dated March 9th concerning their renewal application. Item # 1 in the letter stated that a solids handling plan is required to be submitted. There are no drying beds as part of this facility. Therefore there has been no solids handling historically and there are none proposed. Please let me know how to address this item stated in your letter so that the permit renewal can proceed. Thanks for all your help and have a great day! Harry Potable Water Solutions, LLC 252-945-8948 ROY COOPER Governor MICHAEL S. REGAN Secretary S. DANIEL SMITH Director NORTH CAROLINA Environmental Quality March 9, 2020 CERTIFIED MAIL 70181830 0001 8037 0403 RETURN RECEIPT REQUESTED Mayor Chad Braxton Town of Vanceboro PO Box 306 Vanceboro, NC 28586-0306 Subject: Dear Mayor Braxton: Request for Additional Information NPDES Renewal Application Vanceboro WTP NPDES permit NCO080071 Craven County The Division has reviewed your application, received on September 30, 2019, for renewal of NPDES permit NC0080071. To enable us to complete our review in accordance with N.C.G.S. 143- 215.1 and 15A NCAC 02H .0105, we need additional or revised information regarding your discharge: 1. Per Section 15 of Short Form C, a solids handling plan is required to be submitted with the permit renewal application. The plan was not submitted with the renewal application received on September 30, 2019. In order to proceed with the permit renewal, this plan must be submitted. 2. On November 30, 2017, discharge monitoring report (DMR) data shows an effluent discharge of 16 MGD. Please verify this discharge volume, and if not correct, submit an amended DMR. 3. Please provide five (5) days of Total Hardness (CaCO3 or [Ca + Mg]) data for the water treatment plant effluent and upstream from Outfall 001 to the unnamed tributary to Mauls Swamp. The NC 2007-2014 Water Quality Standard (WQS) Triennial Review was approved by the NC Environmental Management Committee (EMC) on November 13, 2014. The US EPA subsequently approved the WQS revisions on April 6, 2016 with some exceptions. The NC Division of Water Resources NPDES Permitting Unit is required to implement the new dissolved metal standards in all permits public noticed after April 6, 2016. The new standards for most metals include acute standards. Further, the freshwater standards for several metals are expressed as the dissolved form of the metals, and seven metals have hardness - dependent equations. As a result, the NPDES Permitting Unit will need site -specific effluent D E Qbi�� North Carolina Department of Environmental Quality Division of Water Resources 512 North Salisbury Street 1 1617 Mail Service Center Raleigh, North Carolina 27699-1617 NoHrN r..x:eO�aNn ^ 919.707.9000 Mayor Braxton March 9, 2020 Page 2 of 2 hardness data and instream hardness data, upstream of the discharge, for each facility monitoring these metals in order to calculate permit limitations. The metal of concern for the Vanceboro WTP permit is Total Copper. If no response is received within 60 calendar days [per 15A NCAC 02H .0107(b)], the permit will be renewed without the benefit of the additional information. Therefore, a default hardness of 25 mg/L (CaCO3 or [Ca + Mg]) will be used to calculate an effluent limit for Total Copper giving a daily maximum limit of 10.47 µg/L and a monthly maximum limit of 7.88 µg/L. If you have any questions, please contact me at 919-707-3619 or via email at brianna.young@ncdenr.gov. Sincerely, f Brianna Young Compliance and Expedited Permitting Unit cc: NPDES Permit Files DWR/WaRO/WQROPS ■ Complete Items 1, 2, and 3. * Print your name and address. on the reverse so that we can return the card to you. ® Attach this card to the back of the mailpiece, _ or on the front if space permits. Town of Vanceboro Attn: Chad Braxton, Mayor PO Box 306 Vanceboro, NC 28586 A. Signature X �A �`6^- Agent ❑Addressee B. Received by (Prin Name) : C. Date of Delivery 3 Do D. is delivery address. diffemaLfrom item 1? ❑ Yes If YES, enter delivery address below: ❑ No 3. Service Type ❑RegiseredM III�I��II�IIII�IIIIIIIIII�I�II IIII� IIIIIIIIII ❑Adult Signature- HTM ❑Registered MaHTM Ij ❑ Adult Signature Restricted Delivery ❑ Registered Mail Restricted 9590 9402 3950 8060 7363 53 ❑ Certified WHO ❑ Certified Mail Restricted Delivery Delivery ❑ Return Receipt for ❑ Collect on Delivery Merchandise 7 018 1830 0001 8037 0403 AaDelivery.Restricted Delivery El Signature Confirmation*^+ ❑ Signature Confirmation ail Restricted Delivery Restricted Delivery (over$500) _ PS Form 3811, July 2015. PSN 7530-02-000-9053 Domestic Return Receipt =�s�tal Service TM .o CERTIFIED RECEIPT m --Domestic Mail Oniy 0 �- rr1 Certified Mail Fee C1 $ cO Extra Services & Fees (check box, add roe as appropriate) ❑ Return Receipt (hardcopy) $ r-1 p ❑ Return Receipt (electronic) $ Postmark O ❑ Certified Mail Restricted Delivery $ Here O ❑ Adult Signature Required $_ ❑ Adult Signature Restricted Delivery $ _ Q Nostage co ` Town of Vanceboro a Attn: Chad Braxton, Mayor Co a PO Box 306 r_ rti Vanceboro. NC 28SAA va rurm aauu, Apni'Lutb PSN 753o-0a0o0-g047�for Instructions OWiuHi�iiiwd�iiixiiim 9590 940= 39=0 8060 7363 53 United States Postal Seo&e LLI °V O L11 r` a W First -Class Mail Postage & Fees Paid USPS Permit No, G-10 "ende'r: Please print your name, address, and ZIP+4® in this box• U1 0 a NC DEQ-DWR Water Quality Permitting Section C3 Attn: Brianna Young-9th Floor 1617 Mail Service Center Llj 0 Raleigh, NC 27699-1617 IilJill I 111111111111i11111Ili ItA111111111111111111ifIIII I1fl111 Certified Mail service provides ■ A the following benefits; fit rumpt Ri+is portion or rw Genii,, Mall 6 si, • A tn quo identifier for yoyu mailp ore. far an ealow return rlCBlpt, a serail ■ Ei"amr1k vedfkalJ% of dAlyery or attempted assacknta for assistance, 7ld receive a r[t nficate return racaiP1 tar rid add iinP7at fm, delivery. It A record of delivery I15P5�•paahnu iced Cedihed Met WOOD l Irds r>na tho llncfudfng I* rdrJplont's sfgnahual tnat is retahted by dw Paafxl Suvitie' iris a specHfed folaII asI&Ma,5. Rrrstricted do llvdry service, whkh pravldns parlod, Imponwt Reminder& delivery to !hc addresseespecftldd byname. tar to the addnpsyrte'S autfrpdred agent ■ Ynu mxy plurhase Codified fuF3O service myth F, 1-CIa56 Maif°, riret-Ctgos Package Service°, I,, - Priority hr3 'service. • C011119ed MAP service is 001aysPable for intemahodal mail- ■ Insurance coverage la netav3llabfe for pumflase Valli Certified Maif sorvice. Homyer, If, purcryase Of CerOfierl Mau service duos nil rhangs lire immanre courage rtutarnogcagy!nClulded with cart* =1Y Maff item, ■ rw an addittprwl fee, and with 8 pallor ondorsertle Mt on the magplece, You may request the fnflowirtg services: - Return receipt smko. WNI,,h prmidos a record of delnrery trncfllUing the reedpiom's signal¢rey- Ynu ran rnquesi a hardcopy rellim rep lot fir an e!echprrlr. W:5111n. rer a hardcmpy return recmw. complete PS Form 361 T. tbMesk RsNrrr R-erAf, attach PS FVM 33I1 to your mailprei;e, - Adult dgrnhire EaryiCO. which requires" srgnou io be at feast 21 years et age trot avaih&r, at retaN Adrift stgnatura reatdrtad Gaprery>v1cs, which regions the signec m i>a'd least 2l ye rs of ega mild PrOvid� delivery to the addrassce spoc!red by nnme, or to theaddresssa's authorised agent tndt a4aOble at r WI). • Te insure that your Cartlfled Bill rdceipt is accepled as fogal Mop of mEiirng, if stood Nara LISPS 0051 nark. If you would +Ikea pogalark on this Certified riall reoofpt, pfe3se present your Certihad Mail item at a Por, Office` for mtmarkingif you don't Wend a postmark on this Cerhfled Wi receipt, dOWrh the Oarcoded bortum of bli8 tehet, affix it to hta rnailpiefe. apply WJaf* posing, and deposit the malipieea- IMPORTAN'p 511ve thfa remlpt for your regards. P5 Fenn 38Vu. AprP ao 15 {Fr„rrenaa p% rsw-R2-0dD9et: ROY COOPER Governor MICHAEL S. REGAN secretary LINDA CULPEPPER Dirwor Town of Vanceboro Attn: Chad E. Braxton, Mayor PO Box 306 Vanceboro, NC 28586-0306 Subject: Permit Renewal Application No. NCO080071 Vanceboro WTP Craven County Dear Applicant: NORTH CAROLINA Environmental Quality September 30, 2019 The Water Quality Permitting Section acknowledges the September 30, 2019 receipt of your permit renewal application and supporting documentation. Your application will be assigned to a permit writer within the Section's NPDES WW permitting branch. Per G.S. 15OB-3 your current permit does not expire until permit decision on the application is made. Continuation of the current permit is contingent on timely and sufficient application for renewal of the current permit. The permit writer will contact you if additional information is required to complete your permit renewal. Please respond in a timely manner to requests for additional information necessary to allow a complete review of the application and renewal of the permit. Information regarding the status of your renewal application can be found online using the Department of Environmental Quality's Environmental Application Tracker at: https://deg.nc.gov/permits-regulations/permit-guidance/environmental-application-tracker If you have any additional questions about the permit, please contact the primary reviewer of the application using the links available within the Application Tracker. Sincerely, �Z� Wren The ford Administrative Assistant Water Quality Permitting Section ec: WQPS Laserfiche File w/application A North Carobna Department of Environmental QuaKty I Divis6an of Water Resouro=_s 4:��Fwqq 1A Washington Regional Qffce 1943 Washington Sgmars Mali I Washington, North cerorina 27839 ytra-Zs'� 252$4S-S481 Mayor Chad Braxton Town Clerk Beverly Drake ,1 September 26, 2019 NC DEC., Division of Water Resources Water Quality Permitting Section-NPDES 1617 Mail Service Center Raleigh, N. C. 27699-1617 Attn: Mr. Wren Thedford Alderman Stephen Belrose Alderman Keith Cannon Alderman Todd McMillen Alderman Dennis Smith Alderman Billy Whitford RECEIVE® SEP 3 0 7019 NDDEQIDWRINPDES The Town of Vanceboro is submitting our Permit Application for the Water Treatment Plant, Permit #NC0080071. The discharge evaluation report will be submitted separately. If you have any questions please give us a call at 252-244-0919. Sincerely, goi (� &*k Chad E. Braxton Mayor NPDES PERMIT APPLICATION - SHORT FORM C - WTP For discharges associated with water treatment plants Mail the complete application to: N. C. Department of Environment and Natural Resources Division of Water Quality / NPDES Unit 1617 Mail Service Center, Raleigh, NC 27699-1617 NPDES Permit Number INCO080071 If you are completing this form in computer use the TAB key or the up - down arrows to move from one field to the next. To check the, boxes, click your mouse on top of the box. Otherwise, please print or type. 1. Contact Information: Owner Name Facility Name Mailing Address City State / Zip Code Telephone Number Fax Number e-mail Address The Honorable Chad E. Braxton, Mayor Town of Vanceboro P.O. Box 306 Vanceboro North Carolina 28586 (252)244-0919 (252)244-1387 2. Location of facility producing discharge: Check here if same as above ❑ Street Address or State Road City State / Zip Code County l 923 Farm Life Avenue Vanceboro North Carolina 28586 Craven 3. Operator Information: Name of the firm, consultant or other entity that operates the facility. (Note that this is not referring to the Operator in Responsible Charge or ORQ Name Vernon M. Edwards,, Public Works Director Mailing Address P.O. Box 306 City Vanceboro State / Zip Code 28586 Telephone Number (252)244-0919 Fax Number (252)244-1387 4. Ownership Status: Federal ❑ State ❑ Private ❑ Public X Page 1 of 4 Version 5/2012 NPDES PERMIT APPLICATION - SHORT FORM C - WTP For discharges associated with water treatment plants 5. Type of treatment plant: ❑ Conventional (Includes coagulation, flocculation, and sedimentation, usually followed by filtration and disinfection) X Ion Exchange (Sodium Cycle Cationic ion exchange) ❑ Green Sand Filter (No sodium recharge) ❑ Membrane Technology (RO, nanofiltration) Check here if the treatment process also uses a water softener X 6. Description of source water(s) (i.e. groundwater, surface water) Two groundwater well sources. 7. Describe the treatment process(es) for the raw water: Aeration, Filtration, Softening, and then gas chlorination. 8. Describe the wastewater and the treatment process(es) for wastewater generated by the facility: Wastewater generated by the water treatment plant comes from backwashing of the filter and the regeneration cycle of the ion exchange softener. 9. Number of separate discharge points: 1 Outfall Identification number(s) 001 10. Frequency of discharge: Continuous ❑ Intermittent X If intermittent: Days per week discharge occurs: 2-3 Duration: 88 minutes 11; Plant design potable flowrate 0.432 MGD Backwash or reject flow 0.016 MGD 12. Name of receiving stream(s) (Provide a map showing the exact location of each outfall, including latitude and longitude): Unnamed tributary to Mauls Swamp. 13. Please list all water treatment additives, including cleaning chemicals or disinfection treatments, that have the potential to be discharged. Page 2 of 4 1 Version 5/2012 NPDES PERMIT APPLICATION_- SHORT FORM C - ,WTP For discharges associated with water treatment plants Alum / aluminum sulfate Yes No X Iron sulfate / ferrous sulfate Yes No X Fluoride Yes No X Ammonia nitrogen / Chloramines Yes No X Zinc -orthophosphate or sweetwater CP1236 Yes No X List any other additives below: Gas chlorination utilized for disinfection. 14. Is this facility located on Indian country? (check one) Yes ❑ No X 15. Additional Information: ➢ Provide a schematic of flow through the facility, include flow volumes at all points in the water treatment process. The plan should show the point[s] of addition for chemicals and all discharges routed to an outfall [including stormwater]. ➢ Solids Handling Plan 16. NEW Applicants Information needed in addition to items 1-15: ➢ New applicants are highly encouraged to contact a permit coordinator with the NCDENR Customer Service Center. Was the Customer Service Center contacted? ❑ Yes ❑ No ➢ Analyses of source water collected ➢ Engineering Alternative Analysis ➢ Discharges from Ion Exchange and Reverse Osmosis plants shall be evaluated using a water quality model. 17. Applicant Certification I certify that I am familiar with the information contained in the application and that to the best of my knowledge and belief such information is true, complete, and accurate. The Honorable Chad E. Braxton Mayor oignature of Appucant Lace North Carolina General Statute 143-215.6 (b)(2) provides that Any person who knowingly makes any false statement representation, or certification in any application, record, report, plan, or other document files or required to be maintained under Article 21 or regulations of the Environmental Management Commission implementing that Article, or who falsifies, tampers with, or knowingly renders inaccurate any recording or monitoring device or method required to be operated or maintained under Article 21 or regulations of the Environmental Management Commission implementing that Article, shall be guilty of a misdemeanor punishable by a fine not to exceed $25,000, or by Page 3 of 4 1Version 5/2012 NPDES PERMIT APPLICATION - SHORT FORM C - WTP For discharges associated with water treatment plants imprisonment not to exceed six months, or by both (18 U.S.C. Section 1001 provides a punishment by a fine of not more than $25,000 or imprisonment not more than 5 years, or both, for a similar offense.) Page 4 of 4 Version 5/2012 1 VanceboraVJTP • A. • ` Discharge r i /� (SM "it),� w •, � 'l_ Ci NC0080071 `'=• � ���' F,_ �� • —(j{`_�__ +� b r ` "44 �'� _ 1'f � ((•'��,�y,t(`��.f Y,7 �- r ���--• •. . �� �_ -R . ' rf' ( �-{_r�, � GiS.f' "�•^ \� ,i'.`"f � ft'�) � � t >� } i � a`' �Ji'�� 1 s � �.fr� .-�E'�-' ^�^�' •�� � t: ••~ -� ' �--�='� � J j �"" i -�'�'' P r.. _,�' Us 17 ��ti �; may'/} " B !.4z, i � ti- ��� � ` •r /� rn lwzs i '" r-'-~ -� ` a_.•q-_ _ .. 1 ��� l '��,,- `.per: �'+� �--. � ti� NO jif SCALE: 1 in-240008 USGS Quad: F30S W Vancebbro NC Outfall Facili •� tom.F - _ sae,& Y HK ' r� '�y - 7r h` ` "3i.r.�Ts kP7 I Latitude: 35° 18' 13.b" N 35° 18' 15.1" N ,fs -:u� 1i%y. y,FQ�,,T£z•,-g Longitude: 77° 8' 51.1" W 770 8' S0.3" W Stream Class: C, Sw, NSW North Facility Location Subbasin: 03-04-09 HUC: 03020202 Vanceboro WTP NC0080071 Receiving Stream: UT to Mauls Swamp I Craven County GAS CHLORINATION WELL #1 \ AERATOR ►FILTER 10 ION EXCHANGE SOFTENER DISTRIBUTION SYSTEM Well #2/ 10,880 GALLONS 5,400 GALLONS 0.016 MGD UNNAMED TRIBUTARY TO MAULS SWAMP OUTFALL 001 Town of Vanceboro WTP Discharge NC0080071 Potable Water Solutions ti Wren Thedford Division of Water Resources Water Quality Permitting Section — NPDES 1617 Mail Service Center Raleigh, North Carolina 27699-1617 RE: Town of Vanceboro, Craven County Permit NCOO8O071 September 30, 2019 Dear Ms. Thedford, RECEIVED OCT 0 2 2019 NCDEUDWRINPDES Please see attached Discharge Alternatives Evaluation for the Town of Vanceboro, located in Craven County. The renewal application form for this permit was previously submitted under separate cover. Please contact myself or Mr. Vernon Edwards with the Town of Vanceboro if you have any questions concerning this renewal request or if additional information is required. Harry Bailey 1402 Harrington Street Washington, NC 27889 252.945.8948 potablewatersolutions@yahoo.com DISCHARGE ALTERNATIVES EVALUATION Va nceboro WTP N PDES PERMIT NCO080071 TOWN OF VANCEBORO NORTH CAROLINA SEPTEMBER 2019 TABLE OF CONTENTS 1.0 BACKGROUND AND PURPOSE 1.1 BACKGROUND 1.2 PURPOSE 2.0 EXISTING CONDITIONS 2.1 SOURCE WELLS AND WTP RECEIVED 2.2 DISCHARGE WASTEWATER CHARACTERISTICS 2.3 TOXICITY ASSESSMENT OCT 02 2019 3.0 ALTERNATIVES EVALUATION NCDEQIDWRINPDES 3.1 CONNECT DISCHARGE TO A WWTP 3.2 OBTAIN A NON -DISCHARGE PERMIT 3.3 INSTALL WASTEWATER TREATMENT 3.4 USE ALTERNATIVE WATER TREATMENT SOURCE 3.5 USE ALTERNATIVE WATER TREATMENT METHOD 3.6 DISCHARGE TO A LARGER WATERBODY/PERFORM A DILUTION MODEL 3.7 COMBINATION OF ALTERNATIVES 3.8 DISCHARGE VARIANCE 4.0 ALTERNATIVES PRESENT WORTH COSTS 5.0 PREFERRED ALTERNATIVE 5.1 ALTERNATIVE IMPLEMENTATION 5.2 PROJECT SCHEDULE INDEX OF FIGURES FIGURE 2.1 FIGURE 2.2 INDEX OF TABLES TABLE 2.1 NPDES LOCATION MAP TREATMENT & DISCHARGE SCHEMATIC RECEIVED OCT 6 2 7019 EXISTING WELL DATA NppEQjpWRINPDES INDEX OF APPENDICES APPENDIX A NPDES PERMIT INFORMATION APEPNDIX B TOWN OF VANCEBORO 2018 LOCAL WATER SUPPLY PLAN APPENDIX C MAULS SWAMP STREAM CLASSIFICATION APPENDIX D CRAVEN COUNTY 2018 LOCAL WATER SUPPLY PLAN APPENDIX E CCPCUA DATA FOR CRAVEN COUNTY APPENDIX F NEUSE RIVER STREAM CLASSIFICATION APPENDIX G ROUTE FOR ALTERNATIVE DISCHARGE 1.0 BACKGROUND AND PURPOSE 1.1 BACKGROUND The Vanceboro Water Treatment Plant (WTP) is operated by the Town of Vanceboro to provide potable water for Town customers. The WTP treats groundwater from two wells screened in the Castle Hayne aquifer and pumps the finished water into the Town distribution system. The current treatment techniques consist of aeration, filtration, softening, and disinfection. As part of the filtration and softening process, the filter vessels must undergo a backwash process and the softening vessels must undergo a regeneration cycle. The filtration backwash process only utilizes raw water. The softener regeneration cycle also utilizes raw water and a salt (brine) is injected during a small portion of the cycle to restore the softener resin. The wastewater generated by the filtration backwash and softener regeneration is discharged to an unnamed tributary to Mauls Swamp in the Neuse River Basin, under NPDES Permit NC0080071. Due to failed Whole Effluent Toxicity tests (WET), the Town is required by Part A. (3) of the permit to submit a Discharge Alternatives Evaluation with the next permit renewal application. Appendix A contains a copy of the existing discharge permit and the fact sheet for the permit. According to permit requirements, the following options must be evaluated: 1. Connect Discharge to a Wastewater Treatment Plant (WWTP) 2. Obtain a Non -discharge Permit 3. Install Wastewater Treatment 4. Use Alternative Water Treatment Source 5. Use Alternative Water Treatment Method 6. Discharge to a Large Waterbody/Perform a Dilution Model 7. Combination of Alternatives This evaluation is to include a present worth cost analysis for all technically feasible options in accordance with Division of Water Resources guideline "Engineering Alternatives Analysis Guidance Document". 1.2 PURPOSE This evaluation is being requested to determine whether there are any economical and technologically feasible alternatives available to the Town to address aquatic toxicity in the plant effluent. Based upon the evaluation, please identify viable alternatives and present an implementation schedule and project timeline for the preferred alternative. The Town shall submit the Discharge Alternatives Evaluation to the Division along with the submission of their next permit renewal application (due 6 months prior to permit expiration). EXISTING CONDITIONS The Town of Vanceboro WTP was designed to receive and treat groundwater pumped from two wells (Well #1 and Well #2). The location of the wells, the WTP, and the NPDES discharge location are shown in Figure 2.1. Information of the two wells supplying the WTP is shown in Table 2.1. Table 2.1 Vanceboro WTP Well #1 Well #2 Chloride (mg/1) 7 mg/I (9/11/18) 7 mg/I (9/11/18) Current Average Daily Pumped 0.094 MGD 0.094 MGD The average daily demand for the Town varies from 0.176 MGD to 0.218 MGD. This information obtained from monthly operational reports and the 2018 Local Water Supply Plans submitted to NC DEQ Water Supply Section. Appendix B contains a copy of the 2018 Local Water Supply Plan for the Town of Vanceboro. The current treatment train for the Town of Vanceboro WTP is shown in Figure 2.2. The existing treatment techniques utilized at the WTP are as follows (raw to finished): • Aerator • Raw Water Reservoir • High Service Pumps • Filtration • Cation Exchange Softener • Chlorine Gas addition • Discharge of Filter Backwash and Softener Regeneration water to Mauls Swamp There are two existing filter vessels and two existing softeners at the WTP. The filter backwash and softener regeneration cycles occur for every 300,000 gallons of water treated. The cleaning of the filter starts with a filter backwash with a flow rate of 560 gpm for approximately 18 minutes. It is then followed by a filter rinse with a flow rate of 160 gpm for approximately 5 minutes. The regeneration cycle of the softener includes a 10-minute ion exchange backwash with a flow rate of approximately 170 gpm, a 25-minute brine injection with a flow rate of 10 gpm, and a 30-minute ion exchange rinse with a flow rate of approximately 115 gpm. Raw water is used for the filter backwash and softener regeneration cycle. The volume generated during the filter backwash and regeneration cycle are reported on discharge monitoring reports as estimated values because the cleaning processes are completed manually. 2.1 SOURCE WELLS AND WTP DISCHARGE OF REGENERATION WASTE WATER EFFLUENT TO MAULS SWAMP As stated earlier, water generated during the filter backwash and regeneration cycles is currently discharged to Mauls Swamp in accordance with the NPDES permit issued. The discharge location is show in Figure 2.1. Based on discussions with the North Carolina Department of Environmental Quality (NCDEQ) and USGS, Mauls Swamp has no stream gauging station. According to NC DEQ, Mauls Swamp has a Class C freshwater classification. Appendix C contains a copy of page 24 of the Neuse River Basin hydro order that documents this classification. Thus, the existing permit does not allow any dilution factor for toxicity testing on the effluent at present. 2.2 DISCHARGE WASTEWATER CHARACTERISTICS The discharge from the filter backwash and softening regeneration process produces a wastewater that is discharged to Mauls Swamp. Data from permit Discharge Monitoring Reports (DMR) from January 2017 to April 2017 were reviewed for flowrate and water quality parameters to determine the character of the discharges. It is important to note that discharge samples are representative samples and thus reflect the filter backwash and regeneration cycle. The routine compliance sampling data indicates that the discharge has TDS, chlorides and conductivity values characteristic of a strong brine. In June 2012, representatives of NC DEQ Washington Regional Office met with the Town to review the WET testing procedures. It was determined that the current procedure for collection of samples were not adequately representing the filter backwash and softener regeneration cycle. A new sampling procedure was created and provided to the Town. Once the plan was implemented, the WET sample tests have since been failures. As part of the Evaluation project, the plan given to the Town was reviewed and determined to be flow volume skewed with regard to the softener regeneration brine cycle. A new plan was developed to address the flow volume discrepancies in the current plan. This updated plan was reviewed by the WaRO staff before implementation. The WET tests after implementation were determined to be failures. Since the WET tests results did not improve, the updated procedures were reviewed and sampling of the regeneration cycle was completed. The sampling determined that the chloride levels associated with the brine cycle injection was detected at the beginning of the rinse cycle and not during the brine cycle. This is due to the low flow volume associated with the brine injection and increased flow rate during the rinse cycle. The sampling was revised to address this new information and data. The plan appears to better address the chloride levels based on when they appear during the softener regeneration cycle. To date however, the Town has not received approval from the WaRO staff for implementation. Based upon existing data from the DMRs, the following data represents current discharges from the WTP: Filter Backwash and Regeneration Volume/Cycle 16,280 gpd Total Chlorides —5,000 mg/L Total Dissolved Solids Salinity Conductivity 2.3 TOXICITY ASSESSMENT —20-30 mg/L —7 ppt —5,000-13,000 umhos/cm Toxicity testing is currently conducted on a composite sample of filter backwash and softener regeneration discharge water. Due to the rating of Mauls Swamp as a zero - flow stream, 90% effluent strength is used in the toxicity testing procedure. Toxicity tests are conducted using Ceriodaphinia dubia (water fleas). The Town has had failures since the representative sampling plan was modified by the WaRO staff. In general, failure of the test occurs due to the chloride levels associated with the regeneration of the softener. 3.o ALTERNATIVES EVALUATION 3.1 Connect discharge to a WWTP: Determine whether the wastewater can be discharged to a wastewater treatment plant. Approval or disapproval from the plant operator should be acquired. This alternative would eliminate the surface water discharge by connection to a wastewater treatment plant (WWTP). If a discharge line to the sanitary sewer system were constructed, this line would accept the discharge effluent flows from both the filter backwash and the softener regeneration. The Town of Vanceboro owns and operates a Wastewater Treatment Plant WWTP under Permit Number NC0031828. The WWTP has a permitted capacity of 0.30 MGD and discharges into Swift Creek. Based on discussions with WaRO staff, addition of the discharge from the WTP to the sanitary sewer system may create issues with the WWTP effluent. It is therefore not recommended as a viable alternative. A possible viable option would be the blending of raw water with the WTP discharge prior to entering the sanitary sewer system. This would reduce the chloride concentration in the flow along with other contaminants of concern and not create any issues with regard to permitted capacity at the WWTP. Conversations with WaRO staff have indicated that this would not be a permitted alternative. 3.2 Obtain a Non -discharge permit: Eliminate the surface water discharge by obtaining a non -discharge permit for spray irrigation, infiltration, or subsurface disposal (on -site drain field, infiltration gallery, injection wells). This option eliminates the surface water discharge by obtaining a non -discharge permit for spray irrigation, infiltration, or subsurface disposal. In accordance with the Engineering Alternatives Analysis (EAA) Guidance Document provided by NCDEQ, waste streams from ion exchange treatment units do not have to be evaluated for land application. Discharge high in salt concentration is typically not suitable for land application, as excess salts can adversely affect plants via osmotic effect; specific ion toxicity; and soil particle dispersion, which reduces soil permeability and the water infiltration rate. Chloride levels above 350 mg/I and conductivity levels above 3,000 umhos/cm are considered severe potential irrigation problems for land application. Wastewater reuse disposal alternatives include agricultural and landscape irrigation, industrial activities, groundwater recharge, non -potable urban uses (i.e.: toilet flushing, construction water). As explained previously, the waste brine is not suitable for irrigation or landscape irrigation. State of North Carolina code 15A NCAC 02U.1101 prohibits discharge to saltwater wetlands, so this discharge alternative is not available. Additionally, the quality of the discharge would prohibit the use of the discharge for non -potable uses. The brine content does not allow the beneficial use of this waste stream for reuse application. Wastewater reuse is not a feasible alternative for disposal of this discharge. 3.3 Install wastewater treatment: Install improved wastewater treatment to enable the facility effluent to consistently pass the WET test. If this is not technically feasible or cost prohibitive, please explain and provide estimated costs. This alternative requires installation of a wastewater treatment method to enable the facility effluent to consistently pass the WET test. A candidate treatment technology for removal of chlorides is reverse osmosis (RO) technology. However, with such a high chloride content in the feed water, the RO system would need very high pressure and the percent recovery through the process would be 75% or less. Thus, RO process would produce a discharge with a concentrate still requiring discharge to a large water body. There are evaporative type systems that could evaporate the water off the brine wastewater to produce a solid (salt), but they are energy intensive and expensive. Thus, the RO treatment and/or brine evaporation option does not solve the original discharge problem and is not economically feasible. 3.4 Use Alternative Water Treatment Source: Obtain drinking water from another source (nearest County, City, or Town or other wells) so the discharge or toxicity problem is eliminated. This alternative explores the possibility of obtaining drinking water from another source (nearest County, City, or Town or other wells) so the discharge or toxicity problem is eliminated. Based upon the 2018 Local Water Supply Plan, the Town of Vanceboro average daily use ranged from 0.176 to 0.218 MGD and had a maximum day use of 0.3830 MGD (September 2018). The 2018 Local Water Supply Plan also estimated the Town will have a 2060 average daily demand (ADD) of 0.2537 million gallons per day (MGD). Appendix D contains a copy of the Craven County water system Local Water Supply Plan for 2018. The Town of Vanceboro currently has an emergency interconnection with the Craven County water system (NC0425055). Craven County is located within the Central Coastal Plain Capacity Use Area (CCPCUA) and the Craven County water system is a registered permit holder (CU3108). Appendix E contains a copy of the CCPCUA Permit Data for Craven County. Due to the CCPCUA Rules, the Craven County water system has been subject to withdrawal reductions since 2008. The 2018 Local Water Supply Plan indicates that demand as percent of supply is approximately 60% and will approach 80% between 2040 and 2050. At this time, it does not appear that this would be viable alternative source. The Town of Vanceboro utilizes groundwater sources that are in the Castle Hayne aquifer and are currently not subject to withdrawal reductions based on the Central Coastal Capacity Use Area (CCPCUA) Rules. The Division of Water Resources may not permit new groundwater sources located in deeper aquifers that are subject to the CCPCUA Rules. Since there are no public water supply wells located in the deeper aquifers in this area of Craven County, it is not known what raw water quality may exist or what treatment may be required. This alternative would require two new groundwater wells being installed along with the possible construction of a new water treatment plant that would have a discharge. Due to the amount of required infrastructure, this alternative is not financially feasible. 3.5 Use Alternative Water Treatment Method: Install alternative and/or innovative water treatment methods or operational improvements that do not produce toxic wastewaters. For example, install a recycle iron/manganese filtration system with no discharge or combine discharge with WWTP or cooling water effluents. This category includes evaluating alternative and/or innovative water treatment methods or operational improvements that do not produce toxic wastewaters. In effect, this would mean eliminating the softener (and ion exchange) and using a different technology that does not produce the brine/salt discharge in the form of reverse osmosis (RO). However, these technologies produce a brine/saline discharge in the form of concentrate stream that must be disposed of. Thus, use of nanofiltration or RO would need to be combined with a large water body discharge to be applicable. This alternative does not solve the original discharge problem and is not economically feasible. 3.6 Discharge to a Larger waterbody/Perform a dilution model: Relocate the facility's discharge to a larger receiving waterbody to eliminate or reduce toxic impacts to the receiving waterbody given the increased dilution. If applicable, perform a dilution model to receive allowance for steam dilution in WET test. In this alternative, the WTP's discharge line would be lengthened and rerouted to a larger receiving waterbody to eliminate or reduce toxic impacts to the receiving waterbody given the increased dilution. For any receiving body, a dilution mixing model effort would be needed to receive allowance for dilution in WET test. A wastewater pump station would be installed at the WTP and the pump station would discharge via a discharge line leading to a single diffuser outlet. The backwash and regeneration cycle volume are produced in approximately 88 minutes. The highest discharge rate during the filter backwash and softener regeneration cycle is 560 gpm. This occurs during the initial segment of the filter backwash. Due to the salty nature of the discharges, the best choice for a new discharge location would be to a tidally influenced area where the salinity of the discharge will not have as great an impact. A larger water body around the Town of Vanceboro is the Neuse River. The Neuse River is located south of the Town of Vanceboro. The advantage to a new discharge into Neuse River segment 27-(96) is that it is classified SC; Sw; NSW. Appendix F contains a copy of page 23 of the Neuse River Basin hydro order that documents this classification. A discharge to SC waters would change the WET test requirements and also chloride limits. A discharge force main from the WTP would be approximately 8 miles along Mill Avenue to Hwy 17 Business and then Streets Ferry Road to NC Hwy 55. Appendix G contains a map showing the route required. Due to the amount of required infrastructure, this alternative is not financially feasible. 3.7 Combination of Alternatives: Employ any combination of the alternatives listed above that would result in eliminating or decreasing toxicity until a more feasible solution becomes available. Each Of the alternatives stated above either do not solve the original discharge problem and/or are not financially feasible for the Town of Vanceboro. Therefore, a combination of these alternatives would also not solve the original discharge problem and/or would not be financially feasible. 3.8 Discharge Variance The Town of Vanceboro may apply to the Environmental Management Commission (EMC) for a variance to the NPDES permit discharge requirements under State Statute 143-215.3 (e). This statute reads as follows: "Variances. — Any person subject to the provisions of G.S. 143-215.1 or 143-214.1, 143- 215, or 143-215.107. The Commission may grant such variance, for fixed or indefinite periods after public hearing on due notice, or where it is found that circumstances so require, for a period not to exceed 90 days without prior hearing and notice. Prior to granting a variance here under, the Commission shall find that: (1) The discharge of waste or the emission of air contaminants occurring or proposed to occur do not endanger human health or safety; and (2) Compliance with the rules, standards, or limitations from which variance is sought cannot be achieved by application of best available technology found to be economically reasonable at the time of application for such variances, and would produce hardship without equal or greater benefits to the public, provided that such variances shall be consistent with the provision of the Federal Water Pollution Control Act as amended or the Clean air Act as amended; and provided further, that any person who would otherwise be entitled to a variance or modification under the Federal Water Pollution Control Act as amended or the Clean Air Act as amended shall also be entitled to the same variance from or modification in rules, standards, or limitations established pursuant to G>S> 143-214.1, 143-215, and 143- 215.107, respectively." If NPDES variances were to be granted for the WTPs by the DWR, the variance must be applied for, re-evaluated by DWR, and granted every five years for each NPDES permit renewal. It is not clear at this point what cost would be incurred for the variance requests for the WTP in the future as the requirements are determined on a case by case basis. 4.0 ALTERNATIVES PRESENT WORTH COSTS A present worth costs analysis was not completed because the alternatives would either not solve the original discharge problem and/or would not be financially feasible for the Town of Vanceboro. 5.0 PREFERRED ALTERNATIVE This study has been conducted to meet NPDES permit requirements to assess methods for treatment/discharge of wastewater from the WTP to avoid the toxicity impact on Mauls Swamp. The feasibility of alternative methods was presented in Section 3. The cost of the alternatives is significant and most do not solve the original discharge problem. The Town would prefer to work with NC DEQ Water Resources staff on an updated sampling plan that would assist in securing pass results for the WET tests. This is an alternative that would not add a financial burden to the Town and should meet the goal of regulatory compliance. If this plan of action does not meet the goal of compliance, the next preferred method would be the installation of a holding tank. The tank would have a volume of approximately 20,000 gallons with a mixer to properly combine the filter backwash and softener regeneration prior to discharge. Based on calculations of the chloride loading during the brine cycle compared to the total discharge volume, WET testing conducted using Ceriodaphinia dubia (water fleas) should provide a pass for chronic test results. 5.1 ALTERNATIVE IMPLEMENTATION It is important to note that the preferred alternative is not part of the seven (7) alternative choices that are listed on page 5 of 7 of the permit. The recommended implementation steps are as follows: 1. Contact NC DEQ Water Resources staff in the Washington Regional Office for a meeting to discuss the representative sampling plan for collection of WET samples from the WTP discharge. 2. Based on the results of the meeting(s), an updated sampling plan may be created for approval of use by the Town of Vanceboro. 3. Conduct WET sampling based on the updated representative sampling plan to determine compliance. 4. If compliance is achieved, no further actions must be taken. 5. If compliance is not achieved, or an updated representative sampling plan cannot be secured, then a meeting with the WaRO staff will be scheduled to discuss the possibility of utilizing a holding tank. After determining what would be required by the State for implementation (i.e. permitting, compliance monitoring, etc.), the Town of Vanceboro would have to review and discuss the financial viability of this alternative. 5.2 PROJECT SCHEDULE The project schedule for implementation steps 1 & 2 are dependent on the availability of the NC DEQ WaRO staff, Town of Vanceboro staff, and consultant. If steps 1 & 2 can be implemented, scheduling of step 3 is strictly based on the WET test compliance monitoring schedule. Figure 2.1 NPDES LOCATION MAP USGS Quad: F30SW Vancebbro, NC Outfall Facili _Latitude: 35° 18' 13.6" N 350 18' 15.1" N ngitude: 77° 8' 51.1" W 770 8' 50.3" W Stream Class: C, Sw, NSW Subbasin:03-04-09 HUC:03020202 }ar Facility Location North Vanceboro WTP NC0080071 iving Stream: UT to Mauls Swam Craven Co Figure 2.2 TREATMENT & DISCHARGE SCHEMATIC WELL #1 \ AERATOR FILTER Well #2 10,880 GALLONS GAS CHLORINATION ION EXCHANGE SOFTENER 5,400 GALLONS DISTRIBUTION SYSTEM 0.016 MGD UNNAMED TRIBUTARY TO MAULS SWAMP OUTFALL 001 Town of Vanceboro WTP Discharge N C0080071 Appendix A NPDES PERMIT INFORMATION FIFWA ��� NCDEENR North Carolina Department of Environment and Natural Resources Pat McCrory Donald R. van der Vaart Governor Secretary RECEIVE004110 1MR/DM February 5, 2015 E. Renee Ipok FEB 19 2015 Town of Vanceboro P. O. Box 306 water QualityRegio" Vanceboro, NC 28586 w Regl openitlMe Subject: Issuance ofNPDES Permit Permit NCO080071 Vanceboro WTP Craven County Class I Dear Ms. Ipok : Division personnel have reviewed and approved your application for renewal of the subject permit. Accordingly, we are forwarding the attached NPDES permit. This permit is issued pursuant to the requirements of North Carolina General Statute 143-215.1 and the Memorandum of Agreement between North Carolina and the U.S. Environmental Protection Agency dated October 15, 2007 (or as subsequently amended). Summary of Changes in Final Permit from Existing Permit 1) Removed monthly average flow limit. Weekly monitoring to continue. Applied the 2009 Water Treatment Plant Strategy which removes the flow limit. [See A.(1.)] . 2) Reduced monitoring for total chloride, total copper, total iron, and total zinc to quarterly to coincide with chronic toxicity sampling. Edited chronic toxicity footnote. As action level toxicity parameters of concern, these ,parameters are to be evaluated in conjunction with the Whole Effluent Toxicity (WET) test. Note, this permit may be reopened and limits added for these parameters if WET tests continue to demonstrate aquatic toxicity. [See A.(l.)] 3) Reduced monitoring for total manganese to quarterly to coincide with chronic toxicity sampling. Edited chronic toxicity footnote. As a toxicity parameter of concern, monitoring'in conjunction with the quarterly toxicity test was implemented. [See A.(1.)] 4) Reduced monitoring for Total Nitrogen (TN) and Total Phosphorus (TP) to semi-annual. Removed reporting of Total Kfeldahl Nitrogen (continue to measure to determine TN), Nitrite/Nitrate Nitrogen (continue to measure to determine. TN), and Total Nitrogen Load Removed Calculation of Total Nitrogen Loads special condition. Removed Total Monthly Flow footnote. The 2012 Neuse River Basin Strategy reduced nutrient requirements from monthly to semi-annual monitoring and reporting for TN and TP. [See A.(L)] 1617 Mail Service Center, Raleigh, North Carolina 27699.1617 Location: 512 N. Salisbury St Raleigh, North Carolina 27604 Phone: 919-807-63001 Pax: 9IM7-6494 Internet www.nodenr.gov An Equal OpportunityWffirmative Action Employer E. Rene Ipok February 5, 2015 Page 3 of 3 If you have any questions concerning this permit, please contact Ron Berry at telephone number (919) 807-6396 or at email ron.berry@ncdenr.gov. Sincerely, P2� vZimme -ctiyg Director, Division of Water Resources Attachments Cc: Washington Regional Office/Water Quality Programs WSS/Aquatic Toxicology Branch/Susan Meadows (email) Central Fires NPDES Fite k. Permit NCO080071 STATE OF NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES DIVISION OF WATER RESOURCES PERMIT TO DISCHARGE WASTEWATER UNDER THE. NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM In compliance with the provision of North Carolina General Statute 143-215.1, other lawful standards and regulations promulgated and adopted by the North Carolina Environmental Management Commission, and the Federal Water Pollution Control Act, as amended, the Town of Vanceboro is hereby authorized to discharge wastewater from a facility located at the Vanceboro WTP 923 Farm Life Avenue northeast of Vanceboro Craven County to receiving waters designated as an unnamed tributary to Mauls Swamp in the Neuse River Basin in accordance with effluent limitations, monitoring requirements, and other conditions set forth in Parts I, H, and III hereof ' The permit shall become effective .................................. March 1, 2015. This permit and the authorization to discharge shall expire at midnight on February 29, 2020. Signed this day ...................... February 5, 2015. Iry y Zimmerm Ling Director, Division of Water Resources By Authority of the Environmental Management Commission Page I of 7 Permit NCO080071 Part I A. (1) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS [15A NCAC 02B .0400 et seq., 02B .0500 et seq.] a. During the period beginning on the effective date of this permit and lasting until expiration, -'the Permittee is authorized to discharge backwash/rinse wastewater from Outfall 001. Such discharges shall be limited and monitored 1 by the Permittee as specified below: EFFLUENT CHARACTERISTICS LIMITS MONITORING REQUIREMENTS , Monthly Aver ' e Daily Maximum Measurement Frequency Sample Type ` Sample Location Flow, MOD Weekly Estimated Effluent Total Suspended Solids 30.0 mg/L 45.0 mg/L 2/Month Grab Effluent pH Not les than 6.0 S.U. nor eater than 9.0 S.U. 2/Month Grab Effluent Total Residual Chlorine 17 µg/L 2/Month Grab Effluent Salinity, ppt Monthly Grab Effluent Conductivity, µmhos/cm Monthly . Grab Effluent Total Dissolved "Solids, mg/L Monthly Grab Effluent Ammonia as Nitrogen, mg/L Monthly Grab Effluent Turbidity, NTU Monthly Grab Effluent Total Chloride, m Quarterly Grab Effluent Total Copper, µg/L4 Quarterly Grab Effluent Total Iron, mg/L 4 Quarterly Grab Effluent Total Manganese, m Quarterly Grab Effluent Total Zinc, µg/0 Quarterly Grab Effluent Chronic Toxicity 4 . Quarterly Grab Effluent Total Nitrogen, mg/L Monitor & Report Semi-annual Grab Effluent Total Phosphorus, mg/L Monitor & Report Semi-annual Grab Effluent Footnotes: l . No later than 270 days from the effective date of this permit; begin submitting discharge monitoring reports electronically using NC DWR's eDMR application system. See Special Condition A.(4.). 2. Flow is estimated based on influent meter flow rates and duration of discharges events that occur daily. Records shall be maintained and available for inspection indicating the flow rates and duration of daily events used to calculate the reported flow. 3. Limit and monitor only if the facility adds chlorine or a chlorine derivative to water that is eventually discharged. The Division shall consider all effluent TRC values reported below 50 µg/L to be compliant with the permit. However, the Permittee shall continue to record and submit all values reported by a North Carolina laboratory (including field certified), even if these values fall below 50 µg/L 4. Chronic toxicity (Ceriodaphnia dubia) @ 90% conducted in March, June, September, and December. Sampling for total chloride, total copper, total iron, total manganese, and total zinc shall be conducted in conjunction with toxicity testing. See Special Condition A. (2.). 5. For a given wastewater sample, TN = TKN + (NOZ-N + NO3-N), where TN is Total Nitrogen, (NO2- N +NO3-N) is Nitrite/Nitrate Nitrogen, and TKN is Total Kjeldahl Nitrogen. b. All samples collected shall be from a representative discharge event. c. There shall be no discharge of floating solids or visible foam in other than trace amounts. Page 3 of 7 Permit NCO080071 A. (3) DISCHARGE ALTERNATIVES EVALUATION [G.S. 143-215.3(a)(2)] The Permittee shall assess potential. alternatives to eliminate Whole Effluent Toxicity (WET) test failures. This evaluation shall assess the feasibility of all the following alternatives: 1. Connect discharge to a WWTP: Determine whether the wastewater can be discharged to a wastewater treatment plant. Approval or disapproval from the plant operator should be acquired. 2. Obtain a Noe -discharge permit: Eliminate the surface water discharge by obtaining a non - discharge permit for spray irrigation, infiltration, or subsurface disposal (on -site drainfield, infiltration gallery, injection wells). 3. Install Wastewater Treatment: Install improved wastewater treatment to enable the facility effluent to consistently pass the WET test. If this is not technically feasible or cost prohibitive, please explain and provide estimated costs. 4. Use Alternative Water Treatment Source: Obtain drinking water from another source (nearest County, City, or Town or other wells) so the discharge or toxicity problem is eliminated. 5. Use Alternative Water Treatment Method: Install alternative and/or innovative water treatment methods or operational improvements that do not produce toxic wastewaters. "= For example, install a recycle iron/manganese filtration system with no discharge or combine discharge with WWTP or cooling water effluents. 6. Discharge to a Larger waterbody/Perform a dilution model: Relocate the facility's discharge to a larger receiving waterbody to eliminate or reduce toxic impacts to the receiving waterbody given the increased dilution. If applicable, perform a dilution model to receive allowance for stream dilution in WET test. 7. Combination of Alternatives: Employ any combination of the alternatives listed above that would result in eliminating or decreasing toxicity until a more feasible solution becomes available. The evaluation shall include a present value of costs analysis for all technologically feasible options as outlined in the Division's "Engineering Alternatives Analysis Guidance Document." This Document can be found at: http://portal.nedeur.org/web/wq/swp/Ps/npdes/pennits. This evaluation is being requested to determine whether there are any economical and technologically feasible alternatives available to the Permittee to address aquatic toxicity in the plant effluent. Based upon the evaluation, please identify viable alternatives and present an implementation schedule and project timeline for the preferred alternative. The Permittee shall submit the Discharge Alternatives Evaluation to the Division along with the submission of their next permit renewal application (due 6 months prior to permit expiration on March 1, 2015) to: NC DENR / Division of Water Resources / Water Quality Permitting NPDES, Wastewater Branch 1617 Mail Service Center, Raleigh, NC 27699-1617 Page 5 of 7 Permit NCO080071 (Continued A. (4) ELECTRONIC REPORTING OF DISCHARGE MONITORING REPORTS) http://portal.nedenr.org/web/wq/admin/bog/ipu/edmr Regardless of the submission method, the first DMR is due on the last day of the month following the issuance of the permit or in the case of a new facility, on the last day of the month following the commencement of discharge. 2. Signatory Reaui cements [Supplements Section B. (11.) (b) and supersedes Section B. (11.) (d)] All eDMRs submitted to the permit issuing authority shall be signed by a person described in Part II, Section B. (I1.)(a) or by a duly authorized representative of that person as described in Part II, Section B. (I l.)(b). A person, and not a position, must be delegated signatory authority for eDMR reporting purposes. For eDMR submissions, the person signing and submitting the DMR must obtain an eDMR user account and login credentials to access the eDMR system. For more information on North Carolina's eDMR system, registering for eDMR and obtaining an eDMR user account, please visit the following web page: http://portal.ncdenr.org/web/wq/admin/bog/ipu/edmr Certification. Any person submitting an electronic DMR using the state's eDMR system shall make the following certification [40 CFR 122.221. NO OTHER STATEMENTS OF CERTIFICATION WILL BE ACCEPTED: V 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 offines and imprisonment for knowing violations. " 3. Records Retention [Supplements Section D. (6.)] The permittee shall retain records of all Discharge Monitoring Reports, including eDMR submissions. These records or copies shall be maintained for a period of at least 3 years from the date of the report. This period may be extended by request of the Director at any time [40 CFR 122.41]. Page 7 of 7 1 saela>no d `ti 1 � 4 IW lop �'^�'� !-r....•...,.:..._... �.''.�, �`�' _.. Vanceboro WTP <. � _. .......�. •�' '� '• is / `� <.. : " rc' �- Gr f Discharge ! � l�;ia«rawell;, • 1_ (i • NCO080071 l YM })k 1. .r•„ , �t •. f � j ... ••j a. JjF jY Wf � ± = r'w,.., � i � . � j _ J � \. 1 �•, j f� • t 7 i �y�' f % ' (%` -` , `: 1 US 17� ti4++AAF'^"' 11 .� ` ♦ • 4� .) 1 �.—"'`ice t �F :ar •�. .4 'F .ze:. �'" .._a- m —1}i e?'{.+` -y f •+�,~^%T• • 1 tk C: � �._. �, lam' � . �`� ~'`-•r�---'''� ,% S ALE: 1 in = 24000 ft USGS Quad: F30SW Vanceboro, NC- Outfall Facili T atitude: 35 18 13.6 N 35 18 15.1 N tude: 77' 8' 51.1" W 770 8' 50.3" W ngl Stream Class: C North Sw NSW Facility Location Subbasin: 03-04-09 HUC: 03020202 Vanceboro WTP NC0080071 Receiving Stream: UT to Mauls Swamp Craven County Appendix B TOWN OF VANCEBORO 2018 LOCAL WATER SUPPLY PLAN Vanceboro 2018 v The Division of Water Resources (DWR) provides the data contained within this Local Water Supply Plan (LWSP) as a courtesy and service to our customers. DWR staff does not field verify data. Neither DWR, nor any other party involved in the preparation of this LWSP attests that the data is completely free of errors and omissions. Furthermore, data users are cautioned that LWSPs labeled PROVISIONAL have yet to be reviewed by DWR staff. Subsequent review may result in significant revision. Questions regarding the accuracy or limitations of usage of this data should be directed to the water system and/or DWR. 1. System Information Contact Information Water System Name: Vanceboro PWSID: 04-25-020 Complete Mailing Address: PO Box 306 Ownership: Municipality Vanceboro, NC 28586 Contact Person: Beverly W. Drake Title: Town Clerk Phone: 252-244-0919 Cell/Mobile: -- Secondary Contact: Mike Hill Phone: 919-812-6088 Mailing Address: 100 Stroud Ave. Cell/Mobile: — Pink Hill, NC 28572 Distribution System Line Type Size Range (Inches) Estimated % of lines Asbestos Cement 8 5.00 % Polyvinyl Chloride 2-6 95.00 % What are the estimated total miles of distribution system lines? 16 Miles How many feet of distribution lines were replaced during 2018? 0 Feet How many feet of new water mains were added during 2018? 0 Feet How many meters were replaced in 20187 8 How old are the oldest meters in this system? 50 Year(s) How many meters for outdoor water use, such as irrigation, are not billed for sewer services? 0 What is this system's finished water storage capacity? 0.5500 Million Gallons Has water pressure been inadequate in any part of the system since last update? Line breaks that were repaired quickly should not be included. No Programs Does this system have a program to work or flush hydrants? Yes, As Needed Does this system have a valve exercise program? No Does this system have a cross -connection program? No Does this system have a program to replace meters? Yes Does this system have a plumbing retrofit program? No Does this system have an active water conservation public education program? Yes Does this system have a leak detection program? Yes As employees ride through out town they are looking leaks. Water Conservation What type of rate structure is used? Increasing Block How much reclaimed water does this system use? 0.0000 MGD For how many connections? 0 Does this system have an interconnection with another system capable of providing water in an emergency? Yes 2. Water Use Information Service Area Sub-Basin(s) % of Service Population County(s) % of Service Population Neuse River (10-1) 100 % Craven 100 % What was the year-round population served in 2018? 1,864 Has this system acquired another system since last report? No Water Use by Type Type of Use Metered Metered Non -Metered Non -Metered Connections Average Use (MGD) Connections Estimated Use (MGD) Residential 428 0.0670 0 0.0000 Commercial 41 0.0080 0 0.0000 Industrial 1 0.0020 0 0.0000 Institutional 20 0.0710 0 0.0000 How much water was used for system processes (backwash, line cleaning, flushing, etc.)? 0.0150 MGD Water Sales Average Days Contract Required to Pipe Size(s) Use Purchaser PWSID Daily Sold Used comply with water (Inches) Type (MGD) MGD Expiration Recurring use restrictions? Craven County 04-25-055 0.0000 0 Yes Emergency 3. Water Supply Sources Monthly Withdrawals & Purchases Average Daily Max Day Average Daily Max Day Average Daily Max Day Use (MGD) Use (MGD) Use (MGD) Use (MGD) Use (MGD) Use (MGD) Jan 0.2180 0.3150 May 0.1870 0.3420 Sep 0.1950 0.3830 Feb 0.1820 0.2840 Jun 0.1810 0.2950 Oct 0.1870 0.3050 Mar 0.1790 0.2720 Jul 0.1900 0.2870 Nov 0.1900 0.2810 Apr 0.1820 0.2700 Aug 0.1760 0.2750 Dec 0.1780 0.2920 The meters at the wells had not be calibrated in 20 years. This could be the the 11.000 gpd they is being used for backwash. The system is using raw water to backwash.The ORC is going to have the well meters calibrated vanceboro's 2018 Monthly Withdrawals & Purchases � 1 ■ Avg Daily > . Max Day A v a c A t7 c 0 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ground Water Sources Average Daily Withdrawal (MGD) 12-Hour Supply Name or Number Max Day Withdrawal (MGD) (MGD) CILIA Reduction Year Offline Use Type MGD Days Used 1 0.0940 363 0.268 0.2160 CUAO Regular 2 0.0940 364 0.249 0.2160 CUAO Regular Ground Water Sources (continued) Name or Number Well Depth (Feet) Casing Depth Screen Depth (Feet)Well Diameter (Inches) Pump Intake Depth (Feet) Metered? (Feet) Top Bottom 1 165 160 128 160 8 105 Yes 2 165 160 128 160 8 106 Yes Are ground water levels monitored? Yes, Monthly Does this system have a wellhead protection program? Yes Water Purchases From Other Systems Average Days Contract Required to pipe Size(s) Seller PWSID Daily Purchased comply with water (MGD) Used MGD Expiration Recurring use restrictions? (Inches) Craven County 04-25-055 0.0000 0 Yes No 8 Water Treatment Plants Plant Name Permitted Capacity Is Raw Water Metered? Is Finished Water Ouput Metered? (MGDVanceboro Water Plant 0.4320 Yes Yes Did average daily water production exceed 80% of approved plant capacity for five consecutive days during 2018? No If yes, was any water conservation implemented? No Did average daily water production exceed 90% of approved plant capacity for five consecutive days during 20189 No If yes, was any water conservation implemented? No Are peak day demands expected to exceed the water treatment plant capacity in the next 10 years? No 4. Wastewater Information Monthly Discharges Use Type Emergency Source Groundwater Castle Haynes Average Daily Average Daily Average Daily Discharge (MGD) Discharge (MGD) Discharge (MGD) Jan 0.2190 May 0.2030 Sep 0.2070 Feb 0.2630 Jun 0.1950 Oct 0.1680 Mar 0.2530 Jul 0.1630 Nov 0.2160 Apr 0.2370 Aug 0.2370 Dec 0.2380 Vanceboro's 2018 Monthly Discharges O 1 T ■ Avg Daily A O c 0 A 1.7 C 0 0 i Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec How many sewer connections does this system have? 481 How many water service connections with septic systems does this system have? 2 Are there plans to build or expand wastewater treatment facilities in the next 10 years? No Wastewater Permits Average Annual Permit Number Permitted Capacity Design Capacity Daily Discharge Maximum Day Discharge Receiving Stream Receiving Basin (MGD) (MGD) (MGD) (MGD) NCO031828 0.3000 0.3000 0.2170 Swift Creek Neuse River (10-1) NCO080071 0.0000 0.0000 0.0110 Maul Swamp Neuse River (10-1) Total discharge from both plants 0.228 MGD. Maul Swamp is the discharge from water plant the 2 wells pump to one water plant. 5. Planning Projections 2018 2020 2030 2040 2050 2060 Year -Round Population 1,864 1,875 1,914 1,949 2,017 2,111 Seasonal Population 0 0 0 0 0 0 Residential 0.0670 0.0680 0.0700 0.0730 0.0763 0.0801 Commercial 0.0080 0.0071 0.0079 0.0086 0.0095 0.0105 Industrial 0.0020 0.0021 0.0024 0.0027 0.0030 0.0033 Institutional 0.0710 0.0724 0.0797 0.0876 0.0964 0.1060 System Process 0.0150 0.0170 0.0180 0.0190 0.0200 0.0210 Unaccounted-for 0.0242 0.0247 0.0264 0.0283 0.0305 0.0328 The meters at the wells had not be calibrated in 20 years. This could be the the 11,000 gpd they is being used for backwash. The system is using raw water to backwash.The ORC is going to have the well meters calibrated Demand v/s Percent of Supply 2018 2020 2030 2040 2050 2060 Surface Water Supply 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Ground Water Supply 0.4320 0.4320 0.4320 0.4320 0.4320 0.4320 Purchases 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Future Supplies 0.0000 0.0000 0.0000 0.0000 0.0000 Total Available Supply (MGD) 0.4320 0.4320 0.4320 0.4320 0.4320 0.4320 Service Area Demand 0.1872 0.1913 0.2044 0.2192 0.2357 0.2537 Sales 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Future Sales 0.0000 0.0000 0.0000 0.0000 0.0000 Total Demand (MGD) 0.1872 0.1913 0.2044 0.2192 0.2357 0.2537 Demand as Percent of Supply 43% 44 % 47 % 51 % 55% 59% JpGraph Error: 25121 QEmpty input data array specified for plot. Must have at ' least one data point. The purpose of the above chart is to show a general indication of how the long-term per capita water demand changes over time. The per capita water demand may actually be different than indicated due to seasonal populations and the accuracy of data submitted. Water systems that have calculated long-term per capita water demand based on a methodology that produces different results may submit their information in the notes field. Your long-term water demand is 36 gallons per capita per day. What demand management practices do you plan to implement to reduce the per capita water demand (i.e. conduct regular water audits, implement a plumbing retrofit program, employ practices such as rainwater harvesting or reclaimed water)? If these practices are covered elsewhere in your plan, indicate where the practices are discussed here. Are there other demand management practices you will implement to reduce your future supply needs? What supplies other than the ones listed in future supplies are being considered to meet your future supply needs? How does the water system intend to implement the demand management and supply planning components above? Additional Information Has this system participated in regional water supply or water use planning? Yes, CCPCUA What major water supply reports or studies were used for planning? CCPCUA Please describe any other needs or issues regarding your water supply sources, any water system deficiencies or needed improvements (storage, treatment, etc.) or your ability to meet present and future water needs Include both quantity and quality considerations, as well as financial. technical, managerial, permitting, and compliance issues: Radio read meters. The Division of Water Resources (DWR) provides the data contained within this Local Water Supply Plan (LWSP) as a courtesy and service to our customers. DWR staff does not field verify data. Neither DWR, nor any other party involved in the preparation of this LWSP attests that the data is completely free of errors and omissions. Furthermore. data users are cautioned that LWSPs labeled PROVISIONAL have yet to be reviewed by DWR staff. Subsequent review may result in significant revision. Questions regarding the accuracy or limitations of usage of this data should be directed to the water system and/or DWR. Appendix C MAULS SWAMP STREAM CLASSIFICATION NC DENR - DIVISON OF WATER RESOURCES 2B .0300 .0315 NEUSE RIVER BASIN Name of Stream Description Class Class Date Index No. rham Swamp From source to Creeping Swamp C;Sw,NSW 05/01/88 27-97-5-3-0.5 Pollard Swamp From source to Creeping Swamp C;Sw,NSW 05/01/88 27-97-5-3-1 Palmetto Swamp From source to Swift Creek C;Sw,NSW 05/01/88 27-97-5.3 Fork Swamp From source to Palmetto Swamp C;Sw,NSW 05/01/88 27-97-5.3-1 Mauls Swamp From source to Swift Creek C;Sw,NSW 05/01/88 27-97-5.7 Swift Creek From mouth of Bear Branch to Neuse SC;Sw,NSW 05/01/88 27-97-(6) River Bear Branch From source to Swift Creek C;Sw,NSW 05/01/88 27-97-7 Little Swift Creek From source to Swift Creek C;Sw,NSW 05/01/88 27-97-8 Bushy Fork From source to Little Swift Creek C;Sw,NSW 05/01/88 27-97-8-1 Pine Tree Swamp From source to Little Swift Creek C;Sw,NSW 05/01/88 27-97-8-2 Kit Swamp From source to Little Swift Creek C;Sw,NSW 05/01/88 27-97-8-2.5 Fisher Swamp From source to Little Swift Creek C;Sw,NSW 05/01/88 27-97-8-3 Beaverdam Swamp From source to Fisher Swamp C;Sw,NSW 05/01/88 27-97-8-3-1 Bachelor Creek From source to mouth in Neuse River C;Sw,NSW 05/01/88 27-98 located 3.2 miles more or less downstream from The Gut Hollis Branch From source to Bachelor C;Sw,NSW 05/01/88 27-98-1 (Batchelder) Creek "-llover Creek From source to Bachelor C;Sw,NSW 05/01/88 27-98-2 (Batchelder) Creek ueep Branch From source to Bachelor C;Sw,NSW 05/01/88 27-98-2.1 (Batchelder) Creek Beaverdam Branch From source to Bachelor C;Sw,NSW 05/01/88 27-98-2.2 (Batchelder) Creek Jumping Run From source to Bachelor C;Sw,NSW 05/01/88 27-98-2.3 (Batchelder) Creek Beech Tree Branch From source to Bachelor C;Sw,NSW 05/01/88 27-98-2.4 (Batchelder) Creek Round Tree Branch From source to Bachelor C;Sw,NSW 05/01/88 27-98-2.5 (Batchelder) Creek Caswell Branch From source to Bachelor C;Sw,NSW 05/01/88 27-98-2.6 (Batchelder) Creek The Gut From source to Bachelor C;Sw,NSW 05/01/88 27-98-3 (Batchelder) Creek Renny Creek From source to Neuse River SC;Sw,NSW 05/01/88 27-99 Mills Branch From source to Neuse River SC;Sw,NSW 05/01/88 27-99.5 Jack Smith Creek From source to Neuse River C;Sw,NSW 05/01/88 27-100 Trent River From source to mouth of Deep Gully C;Sw,NSW 05/01/88 27-101-(1) Running Branch From source to Trent River C;Sw,NSW 05/01/88 27-101-1.5 Horse Branch From source to Trent River C;Sw,NSW 05/01/88 27-101-2 Beaverdam Swamp From source to Trent River C;Sw,NSW 05/01/88 27-101-3 ;hua Creek From source to Trent River C;Sw,NSW 05/01/88 27-101-4 _ ,kyard Branch From source to Joshua Creek C,Sw,NSW 05/01/88 27-101-4-1 Bearwell Branch From source to Joshua Creek C;Sw,NSW 05/01/88 27-101-4-2 24 Appendix D CRAVEN COUNTY 2018 LOCAL WATER SUPPLY PLAN Craven County The Division of Water Resources (DWR) provides the data contained within this Local Water Supply Plan (LWSP) as a courtesy and service to our customers. DWR staff does not field verify data. Neither DWR, nor any other party involved in the preparation of this LWSP attests that the data is completely free of errors and omissions. Furthermore, data users are cautioned that LWSPs labeled PROVISIONAL have yet to be reviewed by DWR staff. Subsequent review may result in significant revision. Questions regarding the accuracy or limitations of usage of this data should be directed to the water system and/or DWR. 1. System Information Contact Information Water System Name. Craven County Mailing Address: 406 Craven Street New Bern. NC 28560 Contact Person: Phone: Secondary Contact: Mailing Address: Distribution System Elliot Thomas 252-636-6181 Nadyne Bentley 2830 Neuse Blvd New Bern. NC 28562 Line Type Ductile Iron Other Polyvinyl Chloride PWSID. 04-25-055 Ownership. County Title: Water Treatment Plant Supervisor Cell/Mobile 252-670-8010 Phone: 252-636-6181 C ell/Mobile: 252-671-3392 Size Range (Inches) 4-16 6-14 2-18 Complete Estimated % of lines 1.00 % 1.00 % 98.00 % What are the estimated total miles of distribution system lines? 650 Miles How many feet of distribution lines were replaced during 2018? 0 Feet How many feet of new water mains were added during 2018? 0 Feet How many meters were replaced in 2018? 170 How old are the oldest meters in this system? 35 Year(s) How many meters for outdoor water use, such as irrigation, are not billed for sewer services? 43 What is this system's finished water storage capacity? 3,4000 Million Gallons Has water pressure been inadequate in any part of the system since last update? Line breaks that were repaired quickly should not be included. No Programs Does this system have a program to work or flush hydrants? Yes, Annually Does this system have a valve exercise program? Yes, As Needed Does this system have a cross -connection program? Yes Does this system have a program to replace meters? Yes Does this system have a plumbing retrofit program? No Does this system have an active water conservation public education program? Yes Does this system have a leak detection program? No Water Conservation What type of rate structure is used? Increasing Block How much reclaimed water does this system use? 0.0000 MGD For how many connections? 0 Does this system have an interconnection with another system capable of providing water in an emergency? Yes 2. Water Use Information Service Area Sub-Basin(s) Neuse River(10-1) of Service Population County(s) % of Service Population 100 % Craven 100 % What was the year-round population served in 2018? 36,250 Has this system acquired another system since last report? No Water Use by Type Type of Use Metered Metered Non -Metered Non -Metered Connections Average Use (MGD) Connections Estimated Use (MGD) Residential 14,470 1.9832 0 0.0000 Commercial 1,073 0.2031 0 0.0000 Industrial 0 0.0000 0 0.0000 Institutional 0 0.0000 0 0.0000 How much water was used for system processes (backwash, line cleaning, Flushing, etc.)? 0.6592 MGD Water Sales Average Days Contract Required to Pipe Size(s) Use Purchaser PWSID Daily Sold Used comply with water (Inches) Type (MGD) MGD Expiration Recurring use restrictions? Cove City 04-25-045 0.0310 365 0.2500 2025 Yes Yes 6 Regular First Craven SD 04-25-040 0.0000 0 0.0000 2050 No No 6 Emergency Havelock 04-25-015 0.4500 14 0.0000 2050 Yes Yes 8 Emergency Jones County 04-52-020 0.5000 5 No 8 Emergency New Bern 04-25-010 0.0000 0 0.0000 2050 Yes No 12 Emergency North River 04-16-197 0.1600 63 0.0000 2050 Yes Yes 6 Emergency Town of Dover 04-25-025 0.0000 0 0.2500 2050 Yes Yes 6 Emergency Vanceboro 04-25-020 0.0000 0 0.0000 2050 Yes No 6 Emergency 3. Water Supply Sources Monthly Withdrawals & Purchases Average Daily Max Day Average Daily Max Day Average Daily Max Day Use (MGD) Use (MGD) Use (MGD) Use (MGD) Use (MGD) Use (MGD) Jan 3.6020 5.6040 May 3.0200 5.5430 Sep 3.5760 6.2490 Feb 2.7160 3.8730 Jun 2.9030 4.0430 Oct 3.2080 4.8700 Mar 2.9240 3.9080 Jul 3.0520 4.3650 Nov 2.6720 3.5890 Apr 2.9710 5.3470 Aug 2.9640 4.5550 Dec 2.6380 5.0300 Craven County's 2018 Monthly Withdrawals & Purchases 0 8 f a 6 Q. 4 ♦ 0 4 c 0 2 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec ■ Avg Daily Max Day Ground Water Sources Average Daily Withdrawal 12-Hour Name or Number (MGD) Max Day Withdrawal Supply CUA Year Use (MGD) (MGD) Reduction Offline Type MGD Days Used Bryan 0.3270 212 1.004 0.7200 CUA25 Regular Bryan PD 0.0690 210 0.175 0.1120 CUAO Regular Davis 0.2840 82 1.273 0.5760 CUA25 Regular Davis PD 0.0660 41 0.237 0.1150 CUAO Regular Flanners Beach #2 - 0.2550 342 0.805 0.5760 CUAO Regular W13 Flanners Beach #3 - 0.3470 332 0.849 0.5760 CUAO Regular W08 Flanners Beach #4 - 0.3450 333 0.774 0.5760 CUAO Regular W06 Flanners Beach #5 - 0.2380 68 0.659 0.5760 CUAO Regular W09 Ft Barnwell 0.3110 250 1.281 0.5400 CUA25 Regular Ft Barnwell PD 0.0560 64 0.176 0.0860 CUAO Regular Lewis Farm Rd #1 - W11 0.3340 340 0.762 0.5760 CUAO Regular Stately Pines #2 - W12 0.2640 339 0.736 0.5760 CUAO Regular Stately Pines #3 - W10 0.3000 341 0.881 0.5760 CUAO Regular Water Plant Well - W07 0.3380 338 0.818 0.5760 CUAO Regular Well 0.3640 244 1.513 0.5400 CUA25 Regular Well 5 PD 0.0590 237 0.230 0.0940 CUAO Regular Wintergreen 0.3270 272 1.272 0.5760 CUA25 Regular Wintergreen PD 0.0690 45 0.169 0.1800 CUAO Regular Ground Water Sources (continued) Casing Depth Screen Depth (Feet)Well Name or Number Well Depth (Feet) Diameter (Inches) Pump Intake Depth (Feet) Metered? (Feet) Top Bottom Bryan 804 535 535 788 10 320 Yes Bryan PD 312 262 262 302 10 252 Yes Davis 828 714 714 818 10 240 Yes Davis PD 338 303 303 338 10 296 Yes Planners Beach #2 - W13 250 250 205 245 12 100 Yes Flanners Beach #3 - W08 247 247 202 242 12 100 Yes Planners Beach #4 - W06 250 250 205 245 12 115 Yes Flanners Beach #5 - W09 255 255 210 250 12 100 Yes Ft Barnwell 800 495 495 698 10 270 Yes Ft Barnwell PD 242 197 197 237 10 191 Yes Lewis Farm Rd #1 - W11 280 280 235 275 12 115 Yes Stately Pines #2 - W12 271 271 226 266 12 110 Yes Stately Pines #3 - W10 261 261 216 256 12 100 Yes Water Plant Well - W07 280 280 235 275 12 115 Yes Wells 708 606 606 698 10 287 Yes Well 5 PD 283 253 253 273 10 242 Yes Wintergreen 800 535 535 780 10 270 Yes Wintergreen PD 330 280 280 320 10 276 Yes Are ground water levels monitored? Yes, Monthly Does this system have a wellhead protection program? No The Division of Water Resources Local Water Supply Plan database does not currently accurately track allowable groundwater withdrawals regulated by Central Coastal Plain Capacity Use Area Permits These allowable withdrawals are regulated by that Permit rather than the design capacity of the system's wells. Therefore, the allowable withdrawal from the system's wells in 2018 was only 6.2283 MGD rather than the 12-hr well capacity of 8.1470 MGD. This reduction effectively increases the Demand as Percent of Supply shown in Section 5 of the Plan from 38% to 50%, Water Purchases From Other Systems Required to Average Contract comply with Pipe Seller PWSID Daily Days water Size(s) Use Purchased Used MGD Expiration Recurring use (Inches) Type (MGD) restrictions? First Craven 0 -2 0.0000 0 0.0000 2050 No No 6 Emergency 40 Havelock 00 0.0000 0 0.0000 2050 Yes Yes 8 Emergency 55 Jones County Regional Water 04-52- 0.0000 0 0.0000 2050 Yes Yes 8 Emergency System 020 New Bern 00 0.0000 0 0.0000 2050 Yes Yes 8 Emergency 05_ North River 0197 0.0000 0 0.0000 2050 No Yes 3 Emergency Vanceboro 04-25- 0.0000 0 0.0000 2050 Yes Yes 8 Emergency 020 Water Treatment Plants Plant Name Permi (MGD) ed panty Is Raw Water Metered? Is Finished Water Ouput Metered? Bryan/PeeDee Well 0.8320 Yes Yes Craven County Water Treatment 3.0000 Yes Yes Davis/PeeDee Well 0.6910 Yes Yes Dover/ Pee Dee Well 0.6260 Yes Yes Well# 5/ PeeDee 0.6340 Yes Yes Wintergreen/PeeDee Well 0.7560 Yes Yes Did average daily water production exceed 80% of approved plant capacity for rive consecutive days during 2018? No If yes, was any water conservation implemented? No Did average daily water production exceed 90% of approved plant capacity for five consecutive days during 2018? No If yes, was any water conservation implemented? No Are peak day demands expected to exceed the water treatment plant capacity in the next 10 years? No 4. Wastewater Information Monthly Discharges Source Black Creek/PeeDee Castle Hayne Aquifer BlackCreek/PeeDee Black Creek/ PeeDee Black Creek/PeeDee BlackCreek/PeeDee Average Daily Average Daily Average Daily Discharge (MGD) Discharge (MGD) Discharge (MGD) Jan 0.7106 May 0.6451 Sep 0.7814 Feb 0.5732 Jun 0,6308 Oct 0.6593 Mar 0.6347 Jul 0.6587 Nov 0.5818 Apr 0.6455 Aug 0.6038 Dec 0.5646 E Jan Craven County's 2018 Monthly Discharges Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec ■ Avg Daily How many sewer connections does this system have? 0 How many water service connections with septic systems does this system have? 9,910 Are there plans to build or expand wastewater treatment facilities in the next 10 years? No Wastewater Permits Permit Number Permitted Capacity Design Capacity Average Annual Daily Discharge Maximum Day Discharge Receiving Stream Receiving Basin (MGD) (MGD) (MGD) (MGD) NCO089460 1.2000 1.2000 0.6396 1.1920 Neuse River Neuse River (10-1) Although we state that we have a 1.2 MGD flow limit we do not actually have a maximum flow limit. At our current production of 3 MGD, 1.2 MGD would be the most we could discharge. 5. Planning Projections 2018 2020 2030 2040 2050 2060 Year -Round Population 36,250 35,564 41,593 48,645 56,892 62,500 Seasonal Population 0 0 0 0 0 0 Residential 1.9832 1.9560 2.2876 2.6755 3.1291 3.4375 Commercial 0.2031 0.2800 0.3300 0.3900 0.4500 0.5000 Industrial 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Institutional 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 System Process 0.6592 0.6600 0.6700 0.6800 0.6900 0.7000 Unaccounted-for 0.1925 0.3210 0.3210 0.3210 0.3210 0.3210 Future Water Sales Contract Purchaser PWSID Pipe Size(s)(Inches) Use Type MGD Year Begin Year End CCPCUA 00-00-000 0.0800 2019 2061 Regular The sale identified as to the CCPCUA is not actually a sale but a reduction in the available supply due to the conditions of the CCPCUA Permit issued to the County. 7 Demand v/s Percent of Supply 2018 2020 2030 2040 2050 2060 Surface Water Supply 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Ground Water Supply 8.1470 5.9330 5.9330 5.9330 5.9330 5.9330 Purchases 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Future Supplies 0.0000 0.0000 0.0000 0.0000 0.0000 Total Available Supply (MGD) 8.1470 5.9330 5.9330 5.9330 5.9330 5.9330 Service Area Demand 3.0380 3.2170 3.6086 4.0665 4.5901 4.9585 Sales 0.0827 0.2500 0.2500 0.2500 0.2500 0.2500 Future Sales 0.0800 0.0800 0.0800 0.0800 0.0800 Total Demand (MGD) 3.1207 3.5470 3.9386 4.3965 4.9201 5.2885 Demand as Percent of Supply 38% 60 % 66 % 74% 83 % 89% JpGraph Error: 25121 /� Empty input data array specified for plot. Must have at A/1\ least one data point. The purpose of the above chart is to show a general indication of how the long-term per capita water demand changes over time. The per capita water demand may actually be different than indicated due to seasonal populations and the accuracy of data submitted. Water systems that have calculated long-term per capita water demand based on a methodology that produces different results may submit their information in the notes field. Your long-term water demand is 55 gallons per capita per day. What demand management practices do you plan to implement to reduce the per capita water demand (i.e. conduct regular water audits, implement a plumbing retrofit program, employ practices such as rainwater harvesting or reclaimed water)? If these practices are covered elsewhere in your plan, indicate where the practices are discussed here. Are there other demand management practices you will implement to reduce your future supply needs? Continue to promote Water Conservation Education. What supplies other than the ones listed in future supplies are being considered to meet your future supply needs? Our Water Treatment Plant is easily expandable by an additional 2MGD for a total supply of 7.933MGD How does the water system intend to implement the demand management and supply planning components above? Continue to promote Water Conservation by the customer. Carefully monitor the growth of our customer base and plan according to large growth suddenly. Additional Information Has this system participated in regional water supply or water use planning? No What major water supply reports or studies were used for planning? Please describe any other needs or issues regarding your water supply sources, any water system deficiencies or needed improvements (storage, treatment, etc.) or your ability to meet present and future water needs Include both quantity and quality considerations, as well as financial, technical managerial, permitting, and compliance issues: The Division of Water Resources (DWR) provides the data contained within this Local Water Supply Plan (LWSP) as a courtesy and service to our customers. DWR staff does not field verify data. Neither DWR, nor any other party involved in the preparation of this LWSP attests that the data is completely free of errors and omissions. Furthermore, data users are cautioned that LWSPs labeled PROVISIONAL have yet to be reviewed by DWR staff. Subsequent review may result in significant revision. Questions regarding the accuracy or limitations of usage of this data should be directed to the water system and/or DWR. Appendix E CCPCUA DATA FOR CRAVEN COUNTY Division of Water Resources Central Coastal Plain Capacity Use Area Permit Data for Craven County Water Permit holder Craven County Water Application Received 06/11/2019 Permit number CU3108 Application Complete 06/10/2019 Permit status Active Application Public Notice 06/19/2019 County Craven Draft Permit Public Notice 07109/2019 Type of Use Public Supply Issue Date 08/02/2019 Cretaceous Water Bank Yes Expiration Date 07/31/2024 Bank Start Date 08/01/2007 Date First Issued 11/08/2004 Withdrawals Not Subiect to .0503 Reductions 5,767,200 Aquifer: Tch, No. of 14 Permitted Maximum Daily Ground Water Kpd Wells: Withdrawal (in GPD): Withdrawals Subied to .0503 Reductions 952,790,700 Aquifer. Kbc, No. of 5 Approved Base Rate (in GPY): Kud Wells: Future Permitted Annual Withdrawal Rates (in GPY) Temporary Permit Withdrawal Rate (in GPY) August 1, 2008 through July 31, 2013 714,593,025 Beginning on 2019-08-02 476,395,350 August 1, 2013 through July 31, 2018 476,395,350 August 1, 2018 238,197,675 About DM • Contact Us • Jobs • News • Calendar • Staff Google Search Abbreviation Aquifer S urfiofal u pperTertiary y orktown ch astle Ha ne Th Beaufort K d Peedee Kbc Black Creek Kud Upper Cape Fea Kld Lower Ca a Fea Br Basement Rock rvorvr i drul— -- .s.ier uuonnauun Ground Water Management Branch web site This pennittee has filed a Local Water Supply Plan. Click to review their plan. Access this permit holders withdrawal data formatted for Local Water Supply Planning for all wells and individual wells. Access any Local Water Supply Plan Water Withdrawal Statistics for Craven County Water (CU3108) wou. Nnf Cuhi—f to n5n4 Rodueti— Calendar Yea Type Year Total allonsjAverage Da (gallons/day)Maximum Day allons/day of Days jog lWell 11 140,518,20 443,26911 846,90 317 2010 Well 146,611,30 431,210 811,70 340 2011 Well 161,448, 445,991 927,70 362 2012 Well 150,922,50 412,357 868,20 366 2013 Well 142,838,50 391,338 998,50 365 2014 Well 147,345,60 403,687 812,5F 365 2015 Well 129,595,20 372,400 775175701348 Well 125,772,40 345,52 582,00 364 2017 Well 256,876,54 703,771 2,830, 365 2018 Well 795,045,00 2,178,205 3,671,2 365 2019 Well 534,495720 2,199,56911 4,049,2 243 wens supiect to .uou3 Reductions A—...# 1 ♦h--h rury 41 V— Year Year Total gallons Average Day (gallonsida Maximum Da (allons/day of Days 8-1-1996thru 7-31-16 345,922,55 2,203,328 8,511,10 157 1-1997thru 731-1E 292.234.5 2,301,05 9,178,30 127 8-1-1999thru 731-21 742,550,7 2,911,964 12,416,40 255 1-2001 thru 7-31-2C 450,194,2 2,981,419 11,970,90 151 1-2002 thru 731-2C 578,502,2 3,060,858 10,807,20 189 1-2003 thru 731-20t: 1 780,371,6 2,645,327 11,584,70 295 8-1-2004 thru 7-31-200 834,865,5 2,293,587 4,105,60 364 8-1-2005thru 731-2 846,481,5 2,331,905 7,761,40 363 8-1-2006thru 731-200 880,057,6 2,411,117 4,171,60 365 1-2007thru 731- 898,660,E 2,455,357 4,109, 366 8-1-2008thru 731-200 785,592,70 2,152,309 3,998,80 365 8-1-2009thru 731-201 729,695,0 1,999,164 4,011,7 365 8-1-2010 thru 731-2011 679,178,4 1,860,763 3,549.10 365 1-2011 thru 731-2012 733,212,20 2,014,31 5,298,00 364 1-2012thru 7-31-201 627,253,5 1,718,503 3,343,10 365 8-1-2013thru 731-201 t383,546,60 1,872,730 3,273,20 365 B-1-2014 thru 731-201 692,014,1 1,895,92 3,449,90 365 B-1-2015thru 731-201 684,839,80 1,871,147 3,455,00 366 8-1-2016thru731-201 717,277,70ql 1,969,1441 3,303.40 365 8-1-2017thru 731-20t 391,475,3 1,072,5351 3,158,10 365 8-1-2018thru7-31-2^' 352,930,10 966,932 2,631,90 365 1-2019 thru 7-31-2024F2 7—,-55 1 , OMI 888,742 1,856004 31 ABR Calculation Year Rule .0503 lYear Total allons vera a Da allons/da Maximum Da allons/da of Days 1-19Wthru 7-31-20 es 742,550,7 2,911,9641F 255 1997 es 638,157,05 2,247,0321 9,178,301F284 Craven Countv Water [CU31081 Well Information Pump Production Land Surface Diameter Capacity Pump Intake Top Green Bottom Screen Well quife Top .0503 or Pmp(gallons DepthDepth Depth epth (feet) Depth quifer(s Type Reduction WeII? StatusMonitoring(inches) JI..e WelMPor HMD.aug ram mnute(feet)(feet) (feet) (feet) t Barnwer 49 00 20 800 300 495 696 800 364 Kbc, Kuct Well es Existin 25 P es w-1 es ryan 40.00 20 1,000 3001 5351 7881 798 424 bc, Kucf Fe-1111 yes I Existin 25 P no w-1 es 3 ntergree . 45.00 19 800 300 5351 7801 800 430 bc, Kucf Fweii]l yes I Existin 25 P no w-1 es 4 aws 41.00 20 790 2401 7141 8181 828]F 464 bc, Kucf Well es I Existin 25 P no w-1 no 40.00 19 75 2871 6061 6981 708 420 Kbc, Kucf Fw-1-1 yes I Existing 25 P es w-1 es D tergreer 44.00 10 250 E 280 320 330 E274 pd Well no Existing 0 P ? sketch no "'rarely ines 2 30.00 12 80 226 266 271 61 ch Well no I Existing 0 P no gw-1 yes ewis Fanr 26.00 12 8000 235 275 280 67 ch Well I no Existing 0 P no gw-1 yes Hardison 0 28.00 24 66 2Z^,. 234 274 300 60 ch Well no Proposed 0 P t Bamwen D 49.00 10 12 191 197 237 242 172 Kpd Well no Existing 0 P ? sketch no tatel ines ines 3 30,00 12 80 107 216 256 261 57 ch Well no Existing 0 P no gw-1 yes ch 5lanners 28.00 12 80 107 210 250 256 55 ch Well no Existing 0 P no gw-1 yes lanne�> Bch 4 28.00 12 80 122 205 245 249 52 ch Well no Existing 0 P no gw-1 yes ,a ners 26.00 12 80EA 202 242 247 47 ch Well no Existing 0 P no gw-1 yes 1 I Zers 26.00 12 80 E 205 245 250 51 ch Well no Existing 0 P no gw-1 yes 16 avis PD 43.00 10 200 2961 3031 338 348 30 Well no I Existing 0 ©sketch no 17 ryan PD 40 00 10 250 2 5 2]1 2621 3021 312 25 d© Well no I Existing 0 ©sketch no 13 P Sde 22.00 12 8001 2351 275 280 ©0 w—e—i 111 no I Existing 0 P no gw-1 yes 19 PD 41.00 10 130 —24-211 2531 2731 2831F 246jFp—d----jFWel1jj no I Existing 1 0 11 P I ? Isketch no pump intake below top of screen; pump intake below top of screen and top of € itake below top of aquifer Return to the Central Coastal Plain Capacity Use Area Web Page NC Division of Water Resources, DEQ - 1611 Mail Service Center- Raleigh, NC 27699-1611 Last Modified: 04.15.2019 Phone: (919) 707-9000 - Fax: (919) 733-3558 Comments, questions, or problems? Please contact the DWR Webmaster. Appendix F NEUSE RIVER STREAM CLASSIFICATION NC DENR - DI VISON OF WATER RESOURCES 213.0300 .0315 NEUSE RIVER BASIN Name of Stream Description Class Class Date Index No. ack Swamp From source to Little Contentnea C;Sw,NSW 05/01/88 27-86-26-2 Creek Langs Mill Run From source to Black Swamp C;Sw,NSW 05/01/88 27-86-26-2-1 Jacob Branch From source to Black Swamp C;Sw,NSW 05/01/88 27-86-26-2-2 Oldwoman Branch From source to Little Contentnea C;Sw,NSW 05/01/88 27-86-26-3 Creek Pinelog Branch From source to Little Contentnea C;Sw,NSW 05/01/88 27-86-26-4 Creek Middle Swamp From source to Little Contentnea C;Sw,NSW 05/01/88 27-86-26-5 Creek Sandy Run From source to Middle Swamp C;Sw,NSW 05/01/88 27-86-26-5-1 Eagle Swamp From source to Contentnea Creek C;Sw,NSW 05/01/88 27-86-27 Alum Springs Branch From source to Neuse River C;Sw,NSW 05/01/88 27-86.5 Grinnel Slough From soruce to Neuse River C;Sw,NSW 05/01/88 27-87 Grinnel Creek From source to Neuse River C;Sw,NSW 05/01/88 27-87.5 Halfmoon Creek From source to Neuse River C;Sw,NSW 05/01/88 27-88 Village Creek From source to Neuse River C;Sw,NSW 05/01/88 27-89 Core Creek From source to Neuse River C;Sw,NSW 05/01/88 27-90 Grape Creek From source to Core Creek C;Sw,NSW 05/01/88 27-90-1 Mill Branch From source to Core Creek C;Sw,NSW 05/01/88 27-90-2 at Swamp From source to Core Creek C;Sw,NSW 05/01/88 27-90-3 Turkey Quarter Creek From source to Neuse River C;Sw,NSW 05/01/88 27-91 Mill Run From source to Turkey Quarter Creek C;Sw,NSW 05/01/88 27-91-1 McCoy Branch From source to Mill Run C;Sw,NSW 05/01/88 27-91-1-1 Taylor Creek From source to Neuse River C;Sw,NSW 05/01/88 27-92 Greens Thoroughfare From source to Neuse River C;Sw,NSW 05/01/88 27-93 Stony Branch From source to Neuse River C;Sw,NSW 05/01/88 27-94 Pinetree Creek From source to Neuse River C;Sw,NSW 05/01/88 27-95 NEUSE RIVER From Streets Ferry to a line across SC;Sw,NSW 05/01/88 27-(96) Neuse River from Johnson Point to McCotter Point Swift Creek From source to mouth of Bear C;Sw,NSW 05/01/88 27-97-(0.5) Branch Gum Swamp From source to Swift Creek C;Sw,NSW 05/01/88 27-97-1 Nobel Canal From source to Swift Creek C;NSW 05/01/88 27-97-2 Horsepen Swamp From source to Swift Creek C;Sw,NSW 05/01/88 27-97-3 Simmon Branch From source to Swift Creek C;Sw,NSW 05/01/88 27-97-3.5 Fork Swamp From source to Swift Creek C;Sw,NSW 05/01/88 27-97-4 Clayroot Swamp From source to Swift Creek C;Sw,NSW 05/01/88 27-97-5 iorofare Swamp From souce to Clayroot Swamp C;Sw,NSW 05/01/88 27-97-5-1 Indian Well Swamp From source to Clayroot Swamp C;Sw,NSW 05/01/88 27-97-5-2 Creeping Swamp From source to Clayroot Swamp C;Sw,NSW 05/01/88 27-97-5-3 23 Appendix G ROUTE FOR ALTERNATIVE DISCHARGE Craven County GIS Vanceboro WTP ' r� � 1 inch = 5000 feet Craven County does NOT warrant the information shown on this map and should be used ONLY for tax assessment purposes. Printed on September 9. 2019 at 5. 1929 PM Ampwil Po 40 C.A"%9 �rr0 Rd eboro \GS �1 U tag' NC Surface Water Clas....'ication A k En�ul