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HomeMy WebLinkAboutWQ0040384_Issuance of Permit_20190123 ROY COOPER 7,.. Governor i �- 1�11 MICHAEL S.REGAN „r!� ` �� Secretary Aftria :- LINDA CULPEPPER Director NORTH CAROLINA Environmental Quality January 23, 2019 David Johnson, Public Works Director City of Mount Holly 400 East Central Ave. Mount Holly, NC 28120 Subject: Permit No.WQ0040384 City of Mount Holly Imagery on Mtn Island LPSS(Mains) Wastewater Collection System Extension Permit Gaston County Dear Mr.Johnson: ' In accordance with your application received October 3, 2018, and additional information received on January 15, 2019, and January 18, 2019, we are forwarding herewith Permit No. WQ0040384, dated January 23,2019,to City of Mount Holly(Permittee)for the construction and operation upon certification of the subject wastewater collection system extension. This permit shall be effective from the date of issuance until rescinded, and shall be subject to the conditions and limitations as specified therein. This cover letter and supplement shall be considered a part of this permit and are therefore incorporated therein by reference. Please pay particular attention to the following conditions contained within this permit: Condition 1.1: No wastewater flow shall be made tributary to the subject sanitary sewer system until the downstream sewer (Permit No. WQ0039843) is constructed, operational, and the engineer's certification has been received by the Division. [15A NCAC 02T.0116] Condition 1.2: A minimum separation of 100 feet for the subject sewer system shall be provided from waters classified WS-IV, as specified in the plans submitted, and is required per 15A NCAC 02T.0305(f). Condition 11.1: This permit shall not be automatically transferable; a request must be made and approved. Condition 11.4: Requires that the wastewater collection facilities be properly operated and maintained in accordance with 15A NCAC 2T.0403 or any individual system-wide collection system permit issued to the Permittee. Condition 11.7: Upon completion of construction and prior to operation of these permitted facilities,the completed Engineering Certification form attached to this permit shall be submitted with the required supporting documents to the address provided on the form. Permit NORTH D_E` Q) DecaweuaEO,R R uI waM North Carolina Department of Environmental Quality I Division of Water Resources 512 North Salisbury Street 11617 Mail Service Center I Raleigh,North Carolina 27699-1617 919.707.9000 City of Mount Holly • Permit No.WQ0040384 • modifications are required for any changes resulting in non-compliance with this permit, regulations,or the Minimum Design Criteria. [15A NCAC 02T.0116] It shall be responsibility of the Permittee to ensure that the as-constructed project meets the appropriate design criteria and rules. Failure to comply may result in penalties in accordance with North Carolina General Statute, §143-215.6A through §143-215.6C, construction of additional or replacement wastewater collection facilities, and/or referral of the North Carolina-licensed Professional Engineer to the licensing board. If any parts, requirements,or limitations contained in this permit are unacceptable,you have the right to request an adjudicatory hearing upon written request within 30 days following receipt of this permit. This request must be in the form of a written petition, conforming to Chapter 150E of North Carolina General Statutes, and filed with the Office of Administrative Hearings, 6714 Mail Service Center, Raleigh, NC 27699-6714. Unless such demands are made,this permit shall be final and binding. If you need additional information concerning this matter, please contact Monti Hassan at(919)707-3626 or via e-mail at monti.hassan@ncdenr.gov. • Sincerely, & JJ jik, . 6''`-Q— for Linda Culpepper Director, Division of Water Resources by Deborah Gore,Supervisor Pretreatment, Emergency Response,Collection System Unit cc: Hy=Nguyen, PE; DPR Associates, Inc. (hnguyen@dprassociates.riet) Mooresville Regional Office,Water Quality Section Regional Operations Water Resources Central Files:WQ0040384 PERCS(electronic copy) - _;_ - Page 2 of 8 � i. 4�,- `fin, -:"; NORTH CAROLINA Environmental Quality In accordance with the provisions of Article 21 of Chapter 143, General Statutes of North Carolina as - amended,and other applicable Laws, Rules,and Regulations, permission is hereby granted to the City of Mount Holly for the construction and operation of approximately 566 linear feet of 2-inch pressure sewer to serve 9 three-bedroom homes as,part of the Imagery on Mtn Island LPSS(Mains) project,and the discharge of 0 gallons per day of collected domestic wastewater into the City of Mount Holly's existing sewerage system, pursuant to the application received October 3,2018,and additional information received on January 15, 2019,and January 18,2019,and in conformity with the project plans,specifications,and other supporting data subsequently filed and approved by the Department of Environmental Quality and considered a part of this permit. The Individual simplex grinder pumps and service laterals tying into the described pressure sewers are permitted separately under Permit No.WQ0040385, issued January 23, 2019.Wastewater generated by the subject project was previously allocated in Permit No.WQ0039843, issued March 6,2018. This permit shall be effective from the date of issuance until rescinded and shall be subject to the specified conditions and limitations contained therein. jt:\rs, for Linda Culpepper Director, Division of Water Resources By Authority of The Environmental Management Commission Permit Number: WQ0040384 - Permit Issued: January-23,2019 — Treatment Facility: Mount Holly WWTP(NC0021156) Page 3 of 8 ' - - SUPPLEMENT TO PERMIT COVER SHEET - - - The Permittee is hereby authorized to: Construct,and then operate upon certification the aforementioned wastewater collection extension. Permitting of this project does not constitute an acceptance of any part of the project that does not meet 15A NCAC 2T; the Division's Gravity Sewer Minimum Design Criteria adopted February 12, 1996 as applicable;and the Division's Minimum Design Criteria for the Fast-Track Permitting of Pump Stations and Force Mains adopted June 1, 2000 as applicable, unless specifically mentioned herein. Division approval is based on acceptance of the certification provided by a North Carolina-licensed Professional Engineer in the application. It shall be the Permittee's responsibility to ensure that the as-constructed project meets the appropriate design criteria and rules. Construction and operation is contingent upon compliance with the Standard Conditions and any Special Conditions identified below. I. SPECIAL CONDITIONS ' 1. No wastewater flow shall be made tributary to the subject sanitary sewer system until the downstream sewer (Permit No. WQ0039843) is constructed, operational, and the engineer's certification has been received by the Division. [15A NCAC 02T.0116] 2. A minimum separation of 100 feet for the subject sewer system shall be provided from waters classified WS-IV,as specified in the plans submitted, per 15A NCAC 02T.0305(f). Page 4 of 8 II. STANDARD CONDITIONS 1. This permit shall not be transferable. In the event there is a desire for the wastewater collection facilities to change ownership, or there is a name change of the Permittee, a formal permit request shall be submitted to the Division accompanied by documentation from the parties involved, and other supporting materials as may be appropriate. The approval of this request shall be considered on its merits and may or may not be approved. [15A NCAC 02T.0104; G.S. 143-215.1(d3)] 2. This permit shall become voidable unless the wastewater collection facilities are constructed in accordance with the conditions of this permit; 15A NCAC 2T; the Division's Gravity Sewer Minimum Design Criteria adopted February 12, 1996 as applicable; the Division's Minimum Design Criteria for the Fast-Track Permitting of Pump Stations and Force Mains adopted June 1, 2000 as applicable; and other supporting materials unless specifically mentioned herein. [15A NCAC 02T.0110] 3. This permit shall be effective only with respect to the nature and volume of wastes described in the application and other supporting data. [15A NCAC 02T.0110] 4. The wastewater collection facilities shall be properly maintained and operated at all times. The Permittee shall maintain compliance with an individual system-wide collection system permit for the operation and maintenance of these facilities as required by 15A NCAC 02T.0403. If an individual permit is not required,the following performance criteria shall be met: a. The sewer system shall be effectively maintained and operated at all times to prevent discharge to land or surface waters,and to prevent any contravention of groundwater standards or surface water standards. b. A map of the sewer system shall be developed and shall be actively maintained. c. An operation and maintenance plan including pump station inspection frequency, preventative maintenance schedule, spare parts inventory and overflow response has been developed and implemented. _� ,_ d. Pump stations that are not connected to a telemetry system shall be inspected every day(i.e. 365 days per year). Pump stations that are connected to a telemetry system shall be inspected at least once per week. e. High-priority sewer lines shall be inspected at least once per every six-months and inspections are documented. f. A general observation of the entire sewer system shall be conducted at least once per year. g. Overflows and bypasses shall be reported to the appropriate Division regional office in accordance with 15A NCAC 2B .0506(a), and public notice shall be provided as required by North Carolina General Statute§143-215.1C. h. A Grease Control Program is in place as follows: 1. For public owned collection systems, the Grease Control Program shall include at least biannual distribution of educational materials for both commercial and residential users and Page 5 of 8 the legal'means to require grease interceptors at existing establishments.-The plan shall also include legal means for inspections of the grease interceptors,enforcement for violators and the legal means to control grease entering the system from other public and private satellite sewer systems. . 2. For privately owned collection systems,the Grease Control Program shall include at least bi- annual distribution of grease education materials to users of the collection system by the permittee or its representative. . 3. Grease education materials shall be distributed more often than required in Parts (1) and (2) of this Subparagraph if necessary to prevent grease-related sanitary sewer overflows. i. Right-of-ways and easements shall be maintained in the full easement width for personnel and equipment accessibility. j. Documentation shall be kept for Subparagraphs(a)through(i)of this Rule for a minimum of three years with exception of the map,which shall be maintained for the life of the system. 5. Noncompliance Notification: The Permittee shall report by telephone to a water resources staff member at the Mooresville Regional Office,telephone number(704) 663-1699, as soon as possible, but in no case more than 24 hours,following the occurrence or first knowledge of the occurrence of either of the following: a. Any process unit failure,due to known or unknown reasons,that renders the facility incapable of adequate wastewater transport, such as mechanical or electrical failures of pumps, line blockage or breakage, etc.; or b. Any SSO and/or spill over 1,000 gallons; or c. Any SSO and/or spill, regardless of volume,that reaches surface water Voice mail messages or faxed information is permissible, but this shall not be considered as the initial verbal report. Overflows and spills occurring outside normal business hours may also be reported to the Division of Emergency Management at telephone number (800) 858-0368 or•(919) 733-3300. Persons reporting any of the above occurrences shall file a spill report by completing-and submitting Part I of Form CS-SSO (or the most current Division approved form) within five days following first knowledge of the occurrence. This report must outline the actions taken or proposed to be taken-to ensure that the problem does not recur. Part II of Form CS-SSO(or the most current Division approved form)can also be completed to show-that the SSO was beyond control. [G.S. 143-215.1C(a1)] — 6. Construction of the gravity sewers, pump stations, and force mains shall be scheduled so as not to interrupt service by the existing utilities nor result in an overflow or bypass discharge of wastewater to the surface waters of the State. [15A NCAC 02T.0108(b)] 7. Upon completion of construction and prior to operation of these permitted facilities,the completed Engineering Certification form attached to this permit shall be submitted with the required supporting documents to the address provided on the form. A complete certification is one where the form is fully executed and the supporting documents are provided as applicable. Any wastewater flow made tributary to the wastewater collection system extension prior to completion of this Engineer's Certification shall be considered a violation of the permit and shall subject the Permittee to appropriate enforcement actions. Page 6 of 8 If the permit is issued to a private entity with an Operational Agreement;then a copy of the Articles of Incorporation, Declarations/Covenants/Restrictions, and Bylaws that have been appropriately filed with the applicable County's Register of Deeds office shall be submitted with the certification. A complete certification is one where the form is fully executed and the supporting documents are provided as applicable. Supporting documentation shall include the following: a. One copy of the project construction record drawings(plan&profile views of sewer lines&force mains) of the wastewater collection system extension. Final record drawings should be clear on the plans or on digital media (CD or DVD disk) and are defined as the design drawings that are marked up or annotated with after construction information and show required buffers, separation distances, material changes,etc. b. Changes to the project that do not result in non-compliance with this permit, regulations, or the Minimum Design Criteria should be clearly identified on the record drawings,on the certification in the space provided,or in written summary form. Prior to Certification (Final or Partial): Permit modifications are required for any changes resulting in non-compliance with this permit (including but not limited to pipe length changes of 10% or greater, increased flow, pump station design capacity design increases of 5% or greater, and increases in the number/type of connections), regulations, or the Minimum Design Criteria. Requested modifications or variances to the Minimum Design Criteria will be reviewed on a case-by- case basis and each on its own merit. Please note that variances to the Minimum Design Criteria should be requested and approved during the permitting process prior to construction. After- construction requests are discouraged by the Division and may not be approved, thus requiring replacement or repair prior to certification &activation. [15A NCAC 02T.0116] 8. Gravity sewers installed greater than ten percent below the minimum required slope per the Division's Gravity Sewer Minimum Design Criteria shall not be acceptable and shall not be certified until corrected. If there is an unforeseen obstacle in the field where all viable solutions have been examined, a slope variance can be requested from the Division with firm supporting documentation. R This shall be done through a permit modification with fee— Such variance requests will be evaluated on a case-by-case basis.Resolution of such request shall be-evident prior to completing and submitting -- the construction certification. [ 15A NCAC 02T.0105(n)] 97 A copy of the construction record drawings shall be maintained on file by the Permittee for the life of the wastewater collection facilities. [15A NCAC 02T.0116] 10. Failure to abide by the conditions and limitations contained in this permit;15A NCAC 2T;the Division's Gravity Sewer Design Criteria adopted February 12,1996 as applicable;the Division's Minimum Design Criteria for the Fast-Track Permitting of Pump Station and Force Mains adopted June 1, 2000 as applicable; and other supporting materials may subject the Permittee to an enforcement action by the Division, in accordance with North Carolina General Statutes §143-215.6A through §143-215.6C, construction of additional or replacement wastewater collection facilities,and/or referral of the North Carolina-licensed Professional Engineer to the licensing board. [15A NCAC 02T.0108(b-c)] 11. In the event that the wastewater collection facilities fail to perform satisfactorily, including the creation of nuisance conditions,the Permittee shall take immediate corrective action, including those Page 7 of 8 • as may be required by this Division, such as the construction of additional or replacement facilities: - - [15A NCAC 02T.0110; 15A NCAC 02T.0108(b)] 12. The issuance of this permit shall not exempt the Permittee from complying with any and all statutes, rules,regulations,or ordinances that may be imposed by the Division any other Federal,State,or Local government agencies which have jurisdiction or obtaining other permits which maybe required by the Division or any other Federal,State,of Local government agencies. [G.S.143-215.1(b)] 13. The Permittee shall provide for the pump station and force main the following items: a. Pump Station Reliability [15A NCAC 02T.0305(h)(1)]: 1. Pump stations, except when exempted by Subparagraph (j)(2) of 15A NCAC 02T.0305, shall be designed with multiple pumps such that peak flow can be pumped with the largest pump out of service. 2. A standby power source or pump is required at all pump stations except for those pump stations subject to Subparagraph(j)(2)of 15A NCAC 02T.0305. Controls shall be provided to automatically activate the standby source and signal an alarm condition. 3. As an alternative to Part(c)for pump stations with an average daily design flow less than 15,000 gallons per day as calculated using 15A NCAC 02T.0114, a portable power source or pumping capability may be utilized. It shall be demonstrated to the Division that the portable source is owned or-contracted by the permittee and is compatible with the station. If the portable power source or pump is dedicated to multiple pump stations,an evaluation of all the pump stations' storage capacities and the rotation schedule of the portable power source or pump,including travel timeframes,shall be provided in the case of a multiple station power outage. 4. As an alternative to Part (ii) for pump or vacuum stations connecting a single building to an alternative sewer system, wet well storage requirements shall be documented to provide 24-hours' worth of wastewater storage or, exceed the greatest power outage -. over the last three years or the documented response time to replace a failed pump, ._ whichever is greater. Documentation. shall be required pursuant to the permit application. A _ b. All pump stations designed for two pumps or_more shall have a telemetry system to provide remote notification of a problem condition to include power failure and high water alarm. [15A -- _ NCAC 02T.0305(h)(1)(E)] c. High water audio and visual alarm. [15A NCAC 02T.0305(h)(1)(F)] d. Pump stations shall have a permanent weatherproof sign stating the pump station identifier, 24- hour emergency number and instructions to call in case of emergency.Simplex pump or vacuum stations serving a single-family residence shall have a placard or sticker placed inside the control panel with a 24-hour emergency contact number. [15A NCAC 02T.0305(h)(2)] e. Screened vents for all wet wells. [15A NCAC 02T.0305(h)(3)] f. The public shall be restricted access to the site and equipment. [15A NCAC 02T.0305(h)(4)] g. Air relief valves shall be provided at all high points along force mains where the vertical distance exceeds ten feet. [15A NCAC 02T.0305(h)(5)] • Page 8 of 8 • • ENGINEERING CERTIFICATION Permittee: City of Mount Holly - - Issue Date:January 23,2019 Permit No: WQ0040384 County: Gaston Project: Imagery on Mtn Island LPSS(Mains) This project shall not be considered complete nor allowed to operate in accordance with Condition 7 of this permit until the Division has received this Certification and all required supporting documentation,which includes: • One copy of the project construction record drawings(plan&profile views of sewer lines&force mains)of the wastewater collection system extension. Final record drawings should be clear on the plans or on digital media(CD or DVD disk)and are defined as the design drawings that are marked up or annotated with after construction information and show required buffers,separation distances,material changes,etc. Permit modifications are required for any changes resulting in non-compliance with this permit. A detailed description for partial certifications should be attached to this form along with any certification comments. Certification should be submitted in a manner that documents the Division's receipt. The Permittee is responsible for tracking all partial certifications up until a final certification is received. PERMITTEE'S CERTIFICATION I, the undersigned agent for the Permittee, hereby state that this project has been constructed pursuant to the applicable standards&requirements,the Professional Engineer below has provided applicable design/construction information to the Permittee,and the Permittee is prepared to operate&maintain the wastewater collection system permitted herein or portions thereof. Printed Name,Title Signature Date ENGINEER'S CERTIFICATION I, , as a duly registered Professional Engineer in the State of North Carolina, having been authorized to observe (❑ periodically, ❑ weekly, ❑ full time) the construction of the project name and location as referenced above for the above Permittee hereby state that, to the best of my abilities, due care and diligence was used in the observation of theiollowing construction:approximately 566 linear feet of 2-inch pressure sewer to serve 9 three-bedroom homes as part of the Imagery on Mtn Island LPSS(Mains)project,and in conformity with the project plans,specifications,supporting documents,and design criteria subsequently filed and approved. I certify that the construction of the above referenced project was observed to be built within substantial compliance and intent of the approved plans and specifications. North Carolina Professional Engineer's Seal w/signature&date: S ` ❑ Final ❑ Partial(include description) • • • Send the Completed Form&Supporting Documentation to the Following Address: DWR WATER QUALITY PERMITTING SECTION WASTEWATER BRANCH—PERCS UNIT 1617 Mail Service Center Raleigh,NC 27699