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HomeMy WebLinkAboutNC0085111_Permit Issuance_20151208NPDES DOCUMENT SCANNIN`i COVER SHEET NPDES Permit: NC0085111 Heather Glen WTP Document Type: Permit Issuance Wasteload Allocation Authorization to Construct (AtC) Permit Modification Complete File - Historical Engineering Alternatives (EAA) Staff Report Instream Assessment (67b) Speculative Limits Environmental Assessment (EA) Permit History Document Date: December 8, 2015 This document is printed on reuse paper - ignore arty content on the reYerse side PAT MCCRORY Water Resources ENVIRONMENTAL QUALITY ;11IYY7101 DONALD R. VAN DER VAART Srcrctury S. JAY ZIMMERMAN December 8, 2015 Mr. Martin Lashua, Regional Director Utilities, Inc. P.O. Box 240908 Charlotte, NC 28224 Subject: Issuance of NPDES Permit Renewal Permit No. NC0085111 Heather Glen WTP Durham County Facility Class PC-1 Dear Mr. Lashua: Director Division personnel have reviewed and approved your application for renewal of the subject permit. Accordingly, we are forwarding the attached NPDES discharge 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). As identified previously, the renewal permit contains the following significant changes from your current permit: • The previous permit only addressed wastewaters from the greensand filtration unit. To evaluate pollutants of concern from water softeners the following parameters were added to the permit for monitoring in Section A.(1.): temperature, salinity, conductivity, dissolved oxygen, total dissolved solids, total copper, total chloride, total iron, total manganese, total lead, and chronic toxicity testing. Monitoring upstream and downstream of the discharge will be required for temperature, salinity, conductivity, dissolved oxygen, and pH. This sampling is based on the state Water Treatment Plant Strategy. • The requirement to begin reporting discharge monitoring data electronically using the NC DWR's Electronic Discharge Monitoring Report (eDMR) internet application has been added to your NPDES permit. [See Special Condition A.(3.)] For information on eDMR, registering for eDMR and obtaining an eDMR user account, please visit the following web page: http://portal.ncdenr.org/web/wq/admin/boglipu/edmr. For information on EPA's proposed NPDES Electronic Reporting Rule, please visit the following web site: http:l/www2.epa.gov/compliance/proposed-npdes-electronic-reporting-rule. • Total Nitrogen and Total Phosphorus monitoring was reduced to twice per year per the Neuse Permitting Strategy for 2013. • The permit limit for flow was removed per the 2009 Water Treatment Plant Permitting Strategy. State of North Carolina I Environmental Quality I Water Resources 1611 Mail service Center I Raleigh, North Carolina 27699-1611 919 707 9000 • Special Condition A.(2.) was added to define Chronic Toxicity testing procedures, the test organism, the months to perform the testing and at what effluent concentration. If any parts, measurement frequencies or sampling requirements contained in this permit are unacceptable to you, you have the right to an adjudicatory hearing upon written request within thirty (30) days following receipt of this letter. This request must be in the form of a written petition, conforming to Chapter 150B of the North Carolina General Statutes, and filed with the Office of Administrative Hearings (6714 Mail Service Center, Raleigh, North Carolina 27699-6714). Unless such demand is made, this decision shall be final and binding. Please note that this permit is not transferable except after notice to the Division. The Division may require modification or revocation and reissuance of the permit. This permit does not affect the legal requirements to obtain other permits which may be required by the Division of Water Resources or any other Federal, State, or Local governmental permits that may be required. If you have any questions concerning this permit, please contact Julie Grzyb by email (julie.grzyb@ncdenr.gov) or phone at (919) 807-6389. Sj�cer��y/ �S! Jay Z mmerman, P.G. Director, Division of Water Resources Enclosure: NPDES Permit NC0085111 cc: NPDES Unit Central Files Raleigh Regional Office / Water Quality Program e-copy: Susan Meadows, Aquatic Toxicity Branch Permit N00085111 STATE OF NORTH CAROLINA DEPARTMENT OF ENVIRONMENTAL QUALITY DIVISION OF WATER RESOURCES PERMIT TO DISCHARGE WASTEWATER UNDER THE NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM In compliance with the provisions 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, CWS Systems, Inc. is hereby authorized to discharge wastewater from a facility located at the Heather Glen WTP Heather Ridge Subdivision Durham County to receiving waters designated as an unnamed tributary to Sevenmile Creek in the Neuse River Basin in accordance with effluent limitations, monitoring requirements, and other conditions set forth in Parts I, II, and II This permit shall become effective January 1, 2016. This permit and authorization to discharge shall expire at midnight on January 31, 2019. Signed this day December 8, 2015. . Jay Zimmerman, P.G. deg/Director, Division of Water Resources By Authority of the Environmental Management Commission Page 1 of 7 Permit NC0085111 SUPPLEMENT TO PERMIT COVER SHEET All previous NPDES Permits issued to this facility, whether for operation or discharge are hereby revoked. As of this permit issuance, any previously issued permit bearing this number is no longer effective. Therefore, the exclusive authority to operate and discharge from this facility arises under the permit conditions, requirements, terms, and provisions included herein. CWS Systems, Inc. is hereby authorized to: 1. Continue to operate a greensand and softener drinking -water treatment plant designed to produce 0.036 MGD of potable water with a discharge of filter -backwash and regenerate wastewaters of approximately 0.003 MGD. This facility is located in the Heather Ridge Subdivision at the Heather Glen WTP near Durham in Durham County. 2. Discharge from said treatment works at the location specified on the attached map into an unnamed tributary to Sevenmile Creek, classified WS-IV; NSW waters in the Neuse River Basin. Page 2 of 7 Permit NC0085111 PART I A. (1) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS [15A NCAC 02B .0400 et seq., 02B .0500 et seq.] During the period beginning upon the permit effective date and lasting until permit expiration, the Permittee is authorized to discharge fxlter-backwash and regenerate wastewaters from outfall 001. Such discharges shall be limited and monitored) by the Permitfee ac enpn;f;F+rl 1,P1• EFFLUENT CHARACTERISTICS _..° - LIMITS MONITORING REQUIREMENTS Monthly i'Average` Daily Maximum Measurement .•. Fregtiency Sample Tye Sample Location?• Flow, MGD (50050) Monthly Instantaneous E Total Suspended Solids (C0530) 30 mg/L 45 mg/L Twice/Month Grab E Total Residual Chlorine 3 (50060) 17 µg/L Twice/Month Grab E pH (00400) 6.0 — 9.0 s.u. Twice/Month Grab E, U, D Temperature, °C (00010) Monthly Grab E, U, D Salinity, ppt (00480) Monthly Grab E, U, D Conductivity, µmhos/cm (00094) Monthly Grab E, U, D Dissolved Oxygen, mg/L (00300) Monthly Grab E, U, D Total Dissolved Solids, mg/L (70295) Monthly Grab E Total Chloride, mg/L (00940) Monthly Grab E Total Iron, µg/L (01045) Monthly Grab E Turbidity, ntu (00070) Monthly Grab E Total Manganese, µg/L (01055) Monthly Grab E Total Lead 4, µg/L (01051) Monthly Grab E Total Copper 4 , µg/L (01042) Monthly Grab E Total Nitrogen (TN)5 , mg/L (C0600) Monitor & Report (mg/L) Twice/year Grab E Total Phosphorus, mg/L (C0665) Monitor & Report (mg/L) Twice/year Grab E Chronic Toxicity 6(TGP3B) Quarterly. Grab E Footnotes: 1. 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. (3). 2. E = Effluent, Upstream (U) = at least 50 feet upstream from the outfall, Downstream (D) = at least 50 feet downstream from the outfall. • 3. The Division shall consider all effluent TRC values reported below 50 µg/L to be in compliance with the permit. However, the Permittee shall continue to record and submit all values reported by a North Carolina certified laboratory (including field certified), even if these values fall below 50 µg/L. 4. Samples shall be taken in conjunction with quarterly toxicity sampling. 5. For a given wastewater sample, TN = TKN + NO3-N + NO2-N, where TN is Total Nitrogen, TKN is Total Kjeldahl Nitrogen, and NO3-N and NO2 are Nitrate and Nitrite Nitrogen, respectively. 6. Chronic Toxicity (Ceriodaphnia) P/F at 90%: March, June, September and December (see condition A. (2.)). All samples collected should be from a representative discharge event. THERE SHALL BE NO DISCHARGE OF FLOATING SOLIDS OR VISIBLE FOAM IN OTHER THAN TRACE AMOUNTS. Page3of7 Permit NC0085111 SUPPLEMENT TO EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS SPECIAL CONDITIONS A.(2.) CHRONIC TOXICITY PASS/FAIL MONITORING ONLY (QUARTERLY) [15A NCAC 02B .0200 et seq.] The permittee shall conduct quarterly chronic toxicity tests using test procedures outlined in the "North Carolina Ceriodaphnia Chronic Effluent Bioassay Procedure," Revised December 2010, or subsequent versions. The effluent concentration defined as treatment two in the procedure document is 90 %. The testing shall be performed as a Ceriodaphnia dubia 7-day pass/fail test. The tests will be performed during the months of March, June, September and December. These months signify the first month of each three month toxicity testing quarter assigned to the facility. Effluent sampling for this testing must be obtained during representative effluent discharge and shall be performed at the NPDES permitted final effluent discharge below all treatment processes. All toxicity testing results required as part of this permit condition will be entered on the Effluent Discharge Monitoring Form (MR-1) for the month in which it was performed, using the parameter code TGP3B. Additionally, DWR Form AT-1 (original) is to be sent to the following address: Attention: North Carolina Division of Water Resources Water Sciences Section/Aquatic Toxicology Branch 1623 Mail Service 'Center Raleigh, NC 27699-1623 Completed Aquatic Toxicity Test Forms shall be filed with the Water Sciences Section no later than 30 days after the end of the reporting period for which the report is made. Test data shall be complete and accurate and include all supporting chemical/physical measurements performed in association with the toxicity tests, as well as all dose/response data. Total residual chlorine of the effluent toxicity sample must be measured and reported if chlorine is employed for disinfection of the waste stream. Should there be no discharge of flow from the facility during a month in which toxicity monitoring is required, the permittee will complete the information located at the top of the aquatic toxicity (AT) test form indicating the facility name, permit number, pipe number, county, and the month/year of the report with the notation of "No Flow" in the comment area of the form. The report shall be submitted to the Water Sciences Section at the address cited above. Should the permittee fail to monitor during a month in which toxicity monitoring is required, then monthly monitoring will begin immediately. Upon submission of a valid test, this monthly test requirement will revert to quarterly in the months specified above. Should any test data from this monitoring requirement or tests performed by the North Carolina Division of Water Resources indicate potential impacts to the receiving stream, this permit may be re -opened and modified to include alternate monitoring requirements or limits. NOTE: Failure to achieve test conditions as specified in the cited document, such as minimum control organism survival, minimum control organism reproduction, and appropriate environmental controls, shall constitute an invalid test and will require immediate follow-up testing to be completed no later than the last day of the month following the month of the initial monitoring. Page 4 of 7 Permit NC0085111 A. (3.) ELECTRONIC REPORTING OF DISCHARGE MONITORING REPORTS [G.S. 143-215.1(b)] Proposed federal regulations require electronic submittal of all discharge monitoring reports (DMRs) and specify that, if a state does not establish a system to receive such submittals, then. permittees must submit DMRs electronically to the Environmental Protection Agency (EPA). The Division anticipates that these regulations.will be adopted and is beginning implementation in late 2013. NOTE: This special condition supplements or supersedes the following sections within Part II of this permit (Standard Conditions for NPDES Permits): • Section B. (11.) • Section D. (2.) • Section D. (6.) • Section E. (5.) 1. Signatory Requirements 2. Reporting 3. Records Retention 4. Monitoring Reports 1. Reporting (Supersedes Section D. (2.) and Section E. (5.) (a)1 Beginning no later than 270 days from the effective date of this permit, the permittee shall begin reporting discharge monitoring data electronically using the NC DWR's Electronic Discharge Monitoring Report (eDMR) internet application. Monitoring results obtained during the previous month(s) shall be summarized for each month and submitted electronically using eDMR. The eDMR system allows permitted facilities to enter monitoring data and submit DMRs electronically using the internet. Until such time that the state's eDMR application is compliant with EPA's Cross -Media Electronic Reporting Regulation (CROMERR), permittees will be required to submit all discharge monitoring data to the state electronically using eDMR and will be required to complete the eDMR submission by printing, signing, and submitting one signed original and a copy of the computer printed eDMR to the following address: NC DEQ / DWR / Information Processing Unit ATTENTION: Central Files / eDMR 1617 Mail Service Center Raleigh, North Carolina 27699-1617 If a permittee is unable to use the eDMR system due to a demonstrated hardship or due to the facility being physically located in an area where less than 10 percent of the households have broadband access, then a temporary waiver from the NPDES electronic reporting requirements may be granted and discharge monitoring data may be submitted on paper DMR forms (MR 1, 1.1, 2, 3) or alternative forms approved by the Director. Duplicate signed copies shall be submitted to the mailing address above. Requests for temporary waivers from the NPDES electronic reporting requirements must be submitted in writing to the Division for written approval at least sixty (60) days prior to the date the facility would be required under this permit to begin using eDMR. Temporary waivers shall be valid for twelve (12) months and shall thereupon expire. At such time, DMRs shall be submitted electronically to the Division unless the permittee re -applies for and is granted a new temporary waiver by the Division. Information on eDMR and application for a temporary waiver from the NPDES electronic reporting requirements is found on the following web page: http://portal.ncdenr.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. Page 5 of 7 Permit NC0085111 2. Signatory Requirements [Supplements Section B. (11.) (b) and supersedes Section B. (11.) (d)1 All eDMRs submitted to the permit issuing authority shall be signed by a person described in Part II, Section B. (11.)(a) or by a duly authorized representative of that person as described in Part II, Section B. (11.)(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 122.22] . NO OTHER STATEMENTS OF CERTIFICATION WILL BE ACCEPTED: "I certify, under penalty of law, that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gather and evaluate the information submitted Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fines and imprisonment for knowing violations. 3. Records Retention [Supplements Section D. (6.)1 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 f40 CFR 122.41]. Page 6 of 7 Carolina Water Service of NC, Inc. Heather Glen WTP Coun : Durham Stream Class: WS-IV, NSW Receiving Stream: UT Sevenmile Creek Sub -Basin: 030401 Latitude: 36° 05' 14" Grid/Quad: C23SWPS e Longitude: 78° 58' 34" g 31 7 Facility - Location (not to scale) NORTH NPDES Permit No. NC0085111 North Carolina Department of Environmental Quality Division of Water Resources Pat McCrory Govemor MEMORANDUM To: From: Subject: October 9, 2015 NC DEQ / DWR / PWS Regional Engineer Raleigh Regional Office Julie Grzyb 919-807-6389 NPDES Permitting Unit Review of Draft NPDES Permit NC0085111 Heather Glen WTP Durham County Donald R. van der Vaart Secretary Please indicate below your agency's position or viewpoint on the draft permit and return this form by November 13, 2015. If you have any questions on the draft permit, please feel free to contact me at the telephone number shown above. RESPONSE: (Check one) x Concur with the issuance of this permit provided the facility is operated and maintained properly, the stated effluent limits are met prior to discharge, and the discharge does not contravene the designated water quality standards. Concurs with issuance of the above permit, provided the following conditions are met: Opposes the issuance of the above permit, based on reasons stated below, or attached: Signed W Date: 11'13! jS 1617 Mail Service Center, Raleigh, North Carolina 27699-1617 Toll Free Phone: 877-623-67461 Internet: www.ncdenrgov An Equal Opportunity 1 Affirmative Action Employer - Made in pat by recycled paper • Moir ijc crab Zutt \-Vi i ni1)tuiirrAy-t ATTN: WREN THEDFORD NCDERN - WATER RESOURCES 1617 MAIL SERVICE CENTER RALEIGH, NC 27699-1617 Reference: 30632623 Affidavit of Publication State of North Carolina, Durham County To Whom it May Concern: this is to certify the advertisement attached hereto has been published in The Herald Sun On the following dates: o, . / a Is- 4. Sworn to on this (-I day of _c/ ' , 2015 Herald -Sun Representative Sworn to and Subscbed before rl}e this �� 1- day of Otho 6e.✓ , 2015 Notary Public lougaN 'ate •TAR \ACY' MY 1. COMMIS 'IONEXPIR` ES r F.F. 17.0 C� G9y PUBLti ��?•`;instimisiotoo Public Notice North Carolina Environmental management Commission/NP- DES Unit 1617 Mail Service Center Raleigh, NC 27699-1617 Notice of Intent to Issue a NP- DES Wastewater Permit The North Carolina Environ- mental Management Commis- sion proposes to issue a NP- DES wastewater discharge permit to the person(s) listed below. Written comments re- garding 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 hear- ing should there be a signific- ant degree of public interest. Please mail cornments and/or information requests to DVVR at the above address. Inter- ested persons may visit the DWR at 512 N. Salisbury Street. Raleigh. NC to review information on file. Additional information on NPDES per- mits and this notice may be found on our website: http://portal.ncdenr.org.'INeb,:v.:q Iswp/ps/npdes/calendar, or by calling (919) 807-6304. CWS. Inc., [P.O Box 240908, Charlotte NC 28224j reques- ted renewal of permit NC0085111 for its Heather Glen WTP in Durham County: this permitted discharge is fil- ter backwash and reject wastewater to an unnamed tributary to Sevenmile Creek. Neuse River Basin. H-S: 10-15-2015 FACT SHEET FOR EXPEDITED PERMIT RENEWALS ZviS �(f �2riBt47•4_ Basic Information for Expedited Permit Renewals Permit Writer/Date Julie Grzyb / Sept. 28, 2015 Permit Number NC0085111 Facility Name Heather Glen WTP Basin Name/Sub-basin number Neuse/ 030401 Receiving Stream UT to Sevenmile Creek Stream Classification in Permit WS-IV; NSW Does permit need Daily Max NH3 limits? No Does permit need TRC limits/language? Yes added TRC footnote with this renewal Does permit have toxicity testing? Yes added with this renewal Does permit have Special Conditions? No Does permit have instream monitoring? Yes Is the stream impaired (on 303(d) list)? For what parameter? No Any obvious compliance concerns? Ion Exchange to FW(could have toxicity issues) Any permit mods since last permit? No Current expiration date Jan. 31, 2013 New expiration date Jan. 31, 2018 Comments received on Draft Permit? None Carolina Water Services, Inc of NC is a Utilities, Inc company (affiliate). The original application and all other applications up to the most recent one, identify the water treatment facility as greensand having filter backwash wastewater. All permits issued since 1998 are for backwash from a greensand filtration unit. However, the plans and specifications sent to Public Water Supply in 1995 describe the system as having 4 wells, a chlorination apparatus at each well, Calgon CL-50 sequestering agent chemical feeding equipment at Well #1, soda ash chemical feeding equipment, two birm filters and two softeners at Well No. 4, four 3,000 gallon hydropneumatic storage tanks, 4-inch and 2-inch distribution piping, valves and other appurtenances to serve Heather Glen subdivision, Phase I, II, III and Heather Ridge Subdivision. The softeners were described in the PWS plans but do not appear to have been identified in the NPDES applications. The application for this permit renewal was received on Aug. 7, 2012 and it identified the system as having one well (#4), 3 greensand filters, 2 softeners, soda ash and hypochlorite chemical feeding equipment, and one finished water ground storage tank prior to distribution. Potable design flow is listed as 0.036 MGD with an estimated wastewater flow from filtration backwash and softener reject waters of 0.003 MGD. The system has not been in use for the past five years and no discharge has occurred. Danny Lassiter, the Regional Manager for Utilities, Inc stated it was not in use because the wastewater discharge exceeds its NPDES permit limitations. Existing limitations in the permit are for total suspended solids (TSS -30 mg/L monthly average/45 daily max), pH (6-9 s.u.) and total residual chlorine (17 ug/L). Mr. Lassiter believed the facility's problem was meeting the TSS limitation in the wastewater discharge. Currently, the NPDES permit is for an emergency discharge only. On Oct. 1, 2015 Mr. Lassiter requested that the permit maintain the owner as CSW, Inc. and not as Carolina Water Services, Inc of NC which is listed in the permit application. See original letter sent on Dec. 23, 2013. This facility discharges to an unnamed tributary to Sevenmile Creek in the Neuse River Basin. The receiving waters are classified as WS-IV; NSW and it is not listed on the 2014 303(d) list for impaired waters. NPDES Permit No. NC0085111 Page 1 of 2 Compliance: The facility has not had a discharge in over 5 years. Last inspection was performed in 2013 but there was no discharge at that time - no concerns were observed. Permit Limit Development: Since reject wastewaters from the softeners should be included with the filter backwash wastewaters in this permit, the Effluent Limitations and Monitoring Requirements in Section A.(1.) were expanded to include monitoring requirements for Ion Exchange units as listed in the 2009 Water Treatment Plant Strategy. The following parameters were added to the permit for monitoring in Section A.(1.): temperature, salinity, conductivity, dissolved oxygen, total dissolved solids, total copper, total chloride, total iron, total manganese, total lead, and chronic toxicity testing. Monitoring upstream and downstream of the discharge was added for temperature, salinity, conductivity, dissolved oxygen, and pH. Zinc (zinc orthophosphate) and fluoride were not added to the permit since they are not used in the process or added to finished or backwashed wastewaters. Due to toxicity concerns, the state does not allow softener wastewaters to be discharged to freshwater streams; however, this system was installed prior to that decision. Existing facilities with Ion Exchange wastewaters being discharged to freshwater streams and demonstrating toxicity failures are being given compliance schedules to assess alternatives that can eliminate toxicity in the wastewaters. This permit renewal will have chronic toxicity testing monitoring requirements per the WTP Strategy and should toxicity failures occur a compliance schedule will be placed in the permit or permit renewal. Summary of Proposed Changes: • Added eDMR reporting requirements. • Added pollutants of concern to be monitored from ion exchange units. These include temperature, salinity, conductivity, dissolved oxygen, total dissolved solids, total copper, total chloride, total iron, total manganese, total lead, and chronic toxicity testing. • Added instream sampling per the WTP Strategy for ion exchange wastewaters. • Added special condition for chronic toxicity testing. • TN and TP monitoring was reduced to Twice/year per the Neuse Permitting Strategy 2013. Proposed Schedule for Permit Issuance: Draft Permit to Public Notice: October 7, 2015 (estimate) Permit Scheduled to Issue: November 30, 2015 (estimate) NPDES Division Contact: If you have questions regarding any of the above information or on the attached permit, please contact JulieGrzyb at (919) 807-6389. /� NAME: y �L�a (,(. , �j4 DATE: /— 0 -c9a (S"� REGIONAL OFFICE COMMENTS PWS REGIONAL OFFICE COMMENTS NPDES Permit No. NC0085111 Page 2 of 2 Utilities, Inc.' August 3, 2012 Mr. Charles Weaver NC DENR / DWQ / NPDES unit 1617 Mail Service Center Raleigh, NC 27699-1617 Re: Heather Glen WTP NPDES NC0085111 Renewal Request Dear Mr. Weaver, Please find enclosed the Permit Renewal Application Package. Please consider this letter as our official request to renew the NPDES permit for the facility referenced above. If you should have any questions or need any additional information, please do not hesitate to call me at 704-319-0517 or by email at mjlashua@uiwater.com. Thank you in advance for your attention. Sinc Martin Lashua Regional Director a Utikties,Inc.companyCarolina Water Service, Inc. of North Carolina P.O. Box 240908 a Charlotte, NC 28224 o P: 704-525-7990 ® F: 704-525-8174 5701 Westpark Dr., Suite 101 o Charlotte, NC 28217 a www.uiwater.com Heather Glen WeII #4 / Heather Glen Well #4 Backwash Flow Diagram NC0085111 .-2 (2)21x60" Softeners (3)21x60" Greensand Filters Soda Ash Hypochlorite Finished Water Ground Storage Tank (..--) \f Backwash Outfall Lat 36* 05'14" Long 78*58'34" To distribution system UtilitiEs, Inca August 3, 2012 Mr. Charles H. Weaver, Jr. NC DENR / DWQ / NPDES unit 1617 Mail Service Center Raleigh, NC 27699-1617 Re: Heather Glen WTP NPDES NC0085111 Sludge Management Plan Dear Mr. Weaver, This facility is very rarely used but as a potable water treatment unit, there is no sludge generated from this facility. If you should have any questions or need any additional information, please do not hesitate to call me at 704-319-0517 or by email at mjlashua@uiwater.com. Thank you in advance for your attention. Martin Lashua Regional Director aUtilities, Inc. company Carolina Water Service, Inc. of North Carolina P.O. Box 240908 $ Charlotte, NC 28224 P: 704-525-7990 S F: 704-525-8174 5701 Westpark Dr., Suite 101 Charlotte, NC 28217 0 www.uiwater.com ate of North Carolina epartment of Environment, ealth and Natural Resources Division of Environmental Health Public Water Supply Section James B. Hunt, Jr,, Governor Jonathan B. Howes, Secretary Mr. Carl Daniel, Vice President 'C.W.S. Systems, Incorporated Post Office Box 240705 Charlotte, North Carolina 28224 Dear Mr. Daniel: ATA �' t• i) i rill l 1 t e '3''3 1;jL'1 1 1 J--1 Ft Re: Water System Additions Heather Ridge Subdivision Heather Glen Water System Durham County I.D. #03-32-121 Plans and specifications for the referenced project prepared by Duane K. Stewart, P.E., have been reviewed by engineers of this Section. The plans call for the construction of a well designated as Well No. 4 with a 2S gpm 3 horsepower motor Goulds Model No. 25EL30 submersible pump, well house, chlorination appara- tus, soda ash chemical feeding equipment, two (2) 21-inch diameter 62-inch height Lancaster Model No. E-7 birm filters, two (2) Lancaster Model No. CM26-180 softeners, a 3,000 gallon ASME coded hydronneumatic storage tank equipped with automatic air -water volume controls and an air compressor, 4-inch and 2-inch distribution piping, valves and other appurtenances to serve Heather Ridge Subdivision with 20 lots located off Tavistock Drive and Heather Ridge Court. The proposed 4-inch water main will tie into the existing Heather Glen Water System's distribution system. These plans and specifications are approved under Division. of Environmental Health serial number 95-07685, dated June 22, 1995. Backwash wastewater from the filters and softeners will be discharged into a sump located 100 feet away from the well. The Division of Environmental Manage- ment, N.C. Department of Environment, Health and Natural Resources must be contacted to obtain a discharge permit. Upon completion of construction of this project, the combined Heather Glen/Heather Ridge Water System will contain four (4) wells designated as Wells No. 1, 2, 3 and 4 with yields of 20, 16, 15 and 25 gallons per minute, chlorina- tion apparatus at each well, Calgon CL-50 sequestering agent chemical feeding equipment at Well No. ',soda ash chemical feeding equipment, two (2) birm filters and two (2) softeners at Well No. 4, four (4) 3,000 gallon hydrozneu:aatic storage tanks, 4-inch and 2-inch distribution piping, valves and other appurtenances to Yand Hea her Ride Stiff i vi - �.-. ..� c-.1 ... aa..,i i,l P. �"^^'1 i esi n]?� i\WEER i ; II and ii.T. t Ridge bd- Hydropneumatic Lank with a capacity greater than 120 gallons must be constructed and stamped in accordance with the A]Iteri caii Society of Mechanical Engineers (ASME) Pressure Vessel Coded stamped with the ASME "U" symbol stamp, and 7 >-Fcri Stared with the National Board of Boiler and Pressure -,Sur2 �. ^^^el Tesper+t"ryrC These tanks must be inspected by the Department of Labor, boiler'- and Pressure Vessel Division afLer installation but prior to operation. 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