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HomeMy WebLinkAboutWQ0045394_Application (FTSE)_202404121&0'WK community Infrastructure consultants April 11, 2024 Tyler Benson Division of Water Resources NCDEQ - Wilmington Regional Office 127 Cardinal Drive Extension Wilmington, NC 28405 RE: Fast Track Sewer System Extension Permit Sewer Line and Lift Station Replacement City of Southport ARPA Project No. SRP-W-ARP-0105 WKD Project No. 20220972.00.WL Dear Mr. Benson: PECE'VED/NCDENR/DwR APR 12 2024 Water Quality Regional Operations section Wilmington Regional 0tr1ce The City of Southport plans to upgrade existing Ninth Street, Moore Street, and Park Avenue pump stations. The three pump stations are suction -lift pump stations that were identified for replacement due to age, condition, and operational issues. The proposed pump station replacement will include installation of new polymer concrete wet wells and valve vaults, installation of new submersible wastewater pumps, control panels, and electrical work, new discharge piping, new gravity sewer connections, and force main connections to existing force mains. The proposed work will also include abandonment and demolition of the old wet wells, pumps, and piping, after the new pump stations are brought into service. The Ninth Street, Moore Street, and Park Avenue pump stations are listed under System -Wide Collection System Permit No. WQCS00137 (included in this submittal). Below is a summary of proposed work including requested permit modifications: Ninth Street Pump Station: o Proposed replacement pump capacity: 300 gpm (no change frorn current permitted capacity) o Proposed wet well diameter: 8 feet (no change from existing) 0 6 linear feet of 8-inch PVC C900 gravity sewer (connecting to existing) 0 35 linear feet of 6-inch RJPVC C900 force main (connecting to existing) Moore Street Pump Station: o Proposed replacement pump capacity: 400 gpm (no change from current permitted capacity) o Proposed wet well diameter: 8 feet (increase from existing 6-foot dia.) a 69 linear feet of 8-inch PVC C900 gravity sewer (connecting to existing) 300 N. Third Street, Suite 301 Wilmington, NC 28401 Tel. 910.762.=4200 www.wkdirkson.corn Aviation • Water Resources + Land Development • Energy Mr. Benson April 11, 2024 Page 2 o 103 linear feet of 6-inch RJPVC C900 force main (connecting to existing) Park Avenue Pump Station: o Current permitted pump capacity: 300 gpm o Proposed replacement pump capacity: 315 gpm (5% increase) o Proposed wet well diameter: 12 feet (increase from existing 6-foot dia.) 0 35 linear feet of 8-inch PVC C900 gravity sewer (connecting to existing) 0 19 Iinear feet of 6-inch RJPVC C900 force main (connecting to existing 6-inch force main) Under a separate project and sewer permit application, the Park Avenue pump station force main will be increased in diameter from 6-inch to 8-inch, and re-routed to a new discharge point. The increase in pumping capacity for Park Avenue PS from 300 gpm to 315 gpm is to maintain a minimum scour velocity of 2 feet per second in the 8-inch force main. The average daily flows into the three subject pump stations will not be increased, and no new wastewater flows will be generated as part of this project. Please find enclosed the following documents in support of the referenced permit modification: • One (1) hard copy and one (1) digital copy of the completed Fast Track Application • One (1) hard copy and one (1) digital copy of a project vicinity map depicting the project area and closest surface waters (Figure 1) • One (1) hard copy and one (1) digital copy of a USGS topographic map (Figure 2) • One (1) hard copy and one (1) digital copy of a street -level map showing the project area for each of the three pump stations (Figures 3-5) • One (1) hard copy and one (1) digital copy of sealed calculations • One (1) hard copy and one (1) digital copy of the System -Wide Collection System Permit (Permit No. WQCS00137) • One (1) Check 93608 payable to NCDEQ in the amount of $600.00 Please do not hesitate to contact us if you have any questions or comments. We look forward to hearing back from you. Sincerely, W.K. Dickson & Co., Inc. Dania] Khan, P.E. Project Engineer cc: Monroe Huckaby, P.E., WK Dickson Bonnie Therrien, City Manager, City of Southport ftwl< WDICKSON 5peq UD vilmea 'Mmeal Awmes ce I" OD i0 tD k: rn Y Z tz to UZ 0 N N U G: NEI �1 Y W U f�0 Q a O cj O z 0 — O 59 06 z 0 0 v Rn m Q C a� c 0 C d a� E V- co a a� ❑ (4 C 2 ro U L 0 z O NO �t N 0 N CV m State of North Carolina Department of Environmental Quality DWR Division of Water Resources FAST TRACK SEWER SYSTEM EXTENSION APPLICATION Division of Water Resources INSTRUCTIONS FOR FORM: FTA 10-23 & SUPPORTING DOCUMENTATION This application is for sewer extensions involving gravity sewers, pump stations and force mains, or any combination that has been certified by a professional engineer and the applicant that the project mects the requirements of ISA NCAC 02T and the Division's Minimum Design Criteria (Gravity, S+ Sewer & Pump Stations/Force Mains) and that plans, specifications and supporting documents have been prepared in accordance with 15A NCAC 02T, 15A NCAC 02T .0300, Division policies, and good engineering practices. While no upfront engineering design documents are required for submittal, in accordance with 15A NCAC 02T .0305(b), design documents must be prepared prior to submittal of a fast track permit application to the Division. This would include plans, design calculations, and project specifications referenced in 15A NCAC 02T .0305 and the applicable minimum design criteria. These documents shall be immediately available upon request by the Division. Projects that are deemed permitted (do not require a permit from the Division) are explained in 15A NCAC 02T.0303. Projects not eligible for review via the fast track process (must be submitted for full technical review): ➢ Projects that do not meet any part of the minimum design criteria (MDC) documents; ➢ Projects that involve more than one variance from the requirements of 15A NCAC 02T; ➢ Pressure sewer systems utilizing simplex septic tank -effluent pumps (STEPS) or simplex grinder pumps; ➢ Simplex STEP or simplex grinder pumps connecting to pressurized systems (e.g. force mains); ➢ Vacuum sewer systems. General — When submitting an application, please use the following instructions as a checklist in order to ensure all required items are submitted. Adherence to these instructions and checking the provided boxes will help produce a quicker review time and reduce the amount of requested additional information. Failure to submit all required items will necessitate additional processing and review time, and may result in return of the application. Unless otherwise noted, the Applicant shall submit one original and one copy of the application and supporting documentation. A. One Original and One Copy (second copy may be digital) of Application and Supporting Documents ® Required unless otherwise noted. Signatures on original must be "wet ink" or secure digital signatures. Please do not submit engineering design plans with the application unless specifically requested. B. Cover Letter/Narrative Description (Required for All Application Packages): ® List all items included in the application package, as well as a brief description of the requested permitting action. ➢ Be specific as to the system type, number of homes served, flow allocation required, etc. ➢ Include the permit number/status of any other required sewer permits (downstream/upstream) ➢ If necessary for clarity, include attachments to the application form. ➢ If the project is funded by American Rescue Plan Act (ARPA) funds, please include the ARPA project number in the cover letter and in parentheses under Project Name (Section II.1. of the application). C. Application Fee (All New and Modification Application Packages): ® Submit a check or money order in the amount of $600.00, dated no more than 90 days prior to application submittal. ➢ Payable to North Carolina Department of Environmental Quality (NCDEQ) D. Fast Track Application (Required for All Application Packages, Form FTA 10-23): M Submit the completed and appropriately executed application. ➢ If necessary for clarity or due to space restrictions, attachments to the application may be made. ❑ If the Applicant Type in Item I.2 is a corporation or company, provide documentation it is registered for business with the North Carolina Secretary of State. ❑ If the Applicant Type in Item I.2 is a partnership or d/b/a, enclose a copy of the certificate filed with the Register of Deeds in the county of business. ❑ The Project Name in Item II.1 shall be consistent with the project name on the flow acceptance letters, agreements, etc. ® The Professional Engineer's Certification on Page 5 of the application shall be signed, sealed and dated by a North Carolina licensed Professional Engineer. INSTRUCTIONS FOR FORM: FTA 10-23 & SUPPORTING DOCUMENTATION Pagel of 3 ® The Applicant's Certification on Page 5 of the application shall be signed in accordance with 15A NCAC 02T ,0106(h). Per 15A NCAC 02T .0106(c), an alternate person may be designated as the signing official if a delegation letter is provided from a person who mcets the criteria in 15A NCAC 02T .0106(b). E. Flow Tracking/Acceptance Form (Form: FTSE 10-23) (If Applicable): ❑ Submit the completed and executed FTSE form from the owners of the downstream sewers and treatment facility. ➢ Multiple forms maybe required where the downstream sewer owner and wastewater treatment facility are different. ➢ The flow acceptance indicated in form FTSE must not expire prior to permit issuance and must be dated less than one year prior to the application date. ➢ Submittal of this application and form FTSE indicates that owner has adequate capacity and will not violate G.S. 143-215.67(a). ➢ Intergovernmental agreements or other contracts will not be accepted in lieu of a project -specific FTSE. F. Site Maps (All Application Packages): ® Submit an 8.5-inch x 11-inch color copy of a USGS Topographic Map of sufficient scale to identify the entire project area, including the closest surface waters. ➢ General location of the project components (gravity sewer, pump stations, & force main) ➢ Downstream connection points and permit number (if known) for the receiving sewer ® Include an aerial location map showing general project area (such as street names or latitude/longitude) so that Division staff can easily locate it in the field. G. Existing Permit (Application Packages for Modifications to an Existing Permit): ® Submit a copy of the most recently issued existing permit. ® Include a descriptive and clear narrative identifying the previously permitted items to remain in the permit, items to be added, and/or items to be modified (the application form itself should include only include items to be added/modified). The narrative should also include whether any previously permitted items have been certified. ® The narrative should clearly identify the requested permitting action and accurately describe the sewers to he listed in the final permit. H. Power Reliability Plan (Required if portable reliability option utilized for Pump Station): ❑ Per 15A NCAC 02T .0305(h)(1), submit documentation of power reliability for pumping stations. ➢ This alternative is only available for average daily flows less than 15,000 gallons per day ➢ It shall be demonstrated to the Division that the portable source is owned or contracted by the applicant and is compatible with the station. The Division will accept a letter signed by the applicant (see 15A NCAC 02T .0106(b)) or proposed contractor, stating that "the portable power generation unit or portable, independently -powered pumping units, associated appurtenances and personnel are available for distribution and operation of this pump 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. (Required at time of certification) 1. Certificate of Public Convenience and Necessity (All Application Packages for Privately -Owned Public Utilities): ❑ Per 15A NCAC 02T .0115(a)(1) provide the Certificate of Public Convenience and Necessity from the North Carolina Utilities Commission demonstrating the Applicant is authorized to hold the utility franchise for the area to be served by the sewer extension, or ❑ Provide a letter from the North Carolina Utilities Commission's Water and Sewer Division Public Staff stating an application for a franchise has been received and that the service area is contiguous to an existing franchised area or that franchise approval is expected. Operational Agreements (Applications from HOA/POA and Developers for lots to be sold): ❑ Home/Property Owners' Associations ❑ Per 15A NCAC 02T .0115(c), submit the properly executed Operational Agreement (FORM: HOA). ❑ Per 15A NCAC 02T .0115(c), submit a copy of the Articles of Lrcorporation, Declarations and By-laws. ❑ Developers of lots to be sold ❑ Per 15A NCAC 02T .0115(b), submit the properly executed Operational Agreement (FORM: DEV). For more information, visit the Division's collection systems website INSTRUCTIONS FOR FORM: FTA 10-23 & SUPPORTING DOCUMENTATION Page 2 of 3 THE COMPLETED APPLICATION PACKAGE INCLDING ALL SUPPORTING INFORMATION AND MATERIALS, SHOULD BE SENT TO THE APPROPRIATE REGIONAL OFFICE: REGIONAL OFFICE ADDRESS COUNTIES SERVED Asheville Regional Office 2090 US Highway 70 Avery, Buncombe, Burke, Caldwell, Cherokee, Water Quality Section Swannanoa, North Carolina 28778-8211 Clay, Graham, Haywood, Henderson, Jackson, (828) 296-4500 Macon, Madison, McDowell, Mitchell, Polk, (828) 299-7043 Fax Rutherford, Swain, Transylvania, Yancey Fayetteville Regional Office 225 Green Street Suite 714 Anson, Bladen, Cumberland, Harnett, Hoke, Water Quality Section Fayetteville, North Carolina 28301-5095 Montgomery, Moore, Robeson, Richmond, (910) 433-3300 Sampson, Scotland (910) 486-0707 Fax Mooresville Regional Office 610 E. Center Avenue Alexander, Cabarrus, Catawba, Cleveland, Water Quality Section Mooresville, North Carolina 28115 Gaston, Iredell, Lincoln, Mecklenburg, Rowan, (704) 663-1699 Stanly, Union (704)663-6040 Fax Raleiqh Regional Office 3800 Barrett Drive Chatham, Durham, Edgecombe, Franklin, Water Quality Section Raleigh, North Carolina 27609 Granville, Halifax, Johnston, Lee, Nash, (919) 791-4200 Northampton, Orange, Person, Vance, Wake, (919) 571-4718 Fax Warren, Wilson Washington Regional Office 943 Washington Square Mall Beaufort, Bertie, Camden, Chowan, Craven, Water Quality Section Washington, North Carolina 27889 Currituck, Dare, Gates, Greene, Hertford, Hyde, (252) 946-6481 Jones, Lenoir, Martin, Pamlico, Pasquotank, (252) 975-3716 Fax Perquimans, Pitt, Tyrrell, Washington, Wayne Wilmington Regional Office 127 Cardinal Drive Extension Brunswick, Carteret, Columbus, Duplin, New Water Quality Section Wilmington, North Carolina 28405 Hanover, Onslow, Ponder (910) 796-7215 (910)350-2004 Fax Winston-Salem Regional Office 450 W. Hanes Mill Road Suite 300 Alamance, Alleghany, Ashe, Caswell, Davidson, Davie, Forsyth, Guilford, Rockingham, Randolph, Water Quality Section Winston-Salem, North Carolina 27105 Stokes, Surry, Watauga, Wilkes, Yadkin (336)776-9800 (336)776-9797 Fax INSTRUCTIONS FOR FORM: FTA 10-23 & SUPPORTING DOCUMENTATION Page 3 of 3 DWR Division of Water Resources Application Number: State of North Carolina Department of Environmental Quality Division of Water Resources FAST TRACK SEWER SYSTEM EXTENSION APPLICATION FTA 10-23 & SUPPORTING DOCUMENTATION (to be completed by t3WR) All items must be completed or the application will be returned I. APPLICANT INFORMATION: 1. Applicant's name: City of Southport (company, municipality, HOA, utility, etc.) 2. Applicant type: ❑ Individual ❑ Corporation ❑ General Partnership ❑ Privately -Owned Public Utility ❑ Federal ❑ State/County ® Municipal ❑ Other 3. Signature authority's name: Bonnie Therrien per 15A NCAC 02T .0106(b) Title: City Manager 4. Applicant's mailing address: 1029 Howe Street City: Southport State: NC Zip: 28461- 5. Applicant's contact information: Phone number: (910) 457-7900 Email Address: btherrien a,cityofsouth og rt.com 11. PROJECT INFORMATION: 1. Project name: Sewer Line and Lift Station Replacement (ARPA Project 1�{�SRP-W-ARP-0105) 2. Application/Project status: u Proposed (New Permit) ® Existing Permit/Project ® ARPA funded If a modification, provide the existing permit number: WQ00LN/A1 and issued date: N/A, For modifications, also attach a detailed narrative description as described in Item G of the checklist. If new construction, but part of a master plan, provide the existing permit number: WQ00 3. County where project is located: Brunswick 4. Approximate Coordinates (Decimal Degrees): Latitude: 33.924409' Longitude:-78.020073' 5. Parcel ID (if applicable): See Attachment 1 (or Parcel ID to closest downstream sewer) 11I. CONSULTANT INFORMATION: 1. Professional Engineer: Danial Khan, P.E. License Number: 053571 Firm: W.K. Dickson and Co., Inc. Mailing address: 300 N. Third Street, Suite 301 City: Wilmington State: NC Zip: 28401-_ Phone number: (910) 762-4200 Email Address: dklian wkdickson,com IV. WASTEWATER TREATMENT FACILITY (WWTF) INFORMATION: 1. Facility Name: West Brunswick WWTP Permit Number: WQ0023693 Owner Name: Brunswick County V. RECEIVING DOWNSTREAM SEWER INFORMATION: 1. Permit Number(s): WQCS00137 2. Downstream (Receiving) Sewer Information: 8 & 6 inch ❑ Gravity M Force Main 3. System Wide Collection System Permit Number(s) (if applicable): WQCS00137 Owner Name(s): City of Southport FORM: FTA 10-23 Page 1 of 5 VI. GENERAL REQUIREMENTS 1. If the Applicant is a Privately -Owned Public Utility, has a Certificate of Public Convenience and Necessity been attached? ❑ Yes ❑ No ® NIA 2. If the Applicant is a Developer of lots to be sold, has a Developer's Operational Agreement (FORM: DEV) been attached? [-]Yes [-]No ® NIA 3. If the Applicant is a Home/Property Owners' Association, has an HOA/POA Operational Agreement (FORM: HOA) and supplementary documentation as required by 15A NCAC 02T.0115(c) been attached? ❑ Yes ❑ No ® N/A 4. Origin of wastewater: (check all that apply): ® Residential (Individually Owned) ® Retail (stores, centers, malls) ❑ Car Wash ® Residential (Leased) ❑ Retail with food preparation/service ❑ Hotel and/or Motels ® School / preschool / day care ❑ Medical / dental / veterinary facilities ❑ Swimming Pool/Clubhouse ❑ Food and drink facilities ® Church ❑ Swimming Pool/Filter Backwash ❑ Businesses / offices / factories ❑ Nursing Home ❑ Other (Explain in Attachment) 5. Nature of wastewater: 95 % Domestic 5 % Commercial 0 % Industrial (See 15A NCAC. 02T .0103(20)) If Industrial, is there a Pretreatment Program in effect? ❑ Yes ❑ No G. Hasa flow reduction been approved under 15A NCAC 02T .0114(f) ❑ Yes ® No ➢ If yes, provide a copy of flow reduction approval letter with this application 7. Summarize wastewater generated by project: Establishment Type (see 02T.0114(f)) Daily Design Flow',' No. of Units Flow NIA 0 gal/min 0 0 GPD gal/ GPD gall GPD gall GPD gal/ GPD gal/ GPD Total GPD a See 15A NCAC 02T .0114(b), (d).(e)(1) and (e)(2) for caveats to wastewater design flow rates (i.e. proposed unknown non-residential development uses; public access facilities located near high public use areas; and residential property located south or east of the Atlantic Intracoastal Waterway to be used as vacation rentals as defined in G.S. 42A-4). b Per 15A NCAC 02T .0I 14(c), design flow rates for establishments not identified [in table 15A NCAC 02T.0114] shall be determined using available flow data, water using fixtures, occupancy or operation patterns, and other measured data. 8. Wastewater generated by project: 0 GPD (per 15A NCAC 02T .0114 and G.S. 143-215.1) ➢ Do not include future flows or previously permitted allocations If permitted flow is zero, please indicate why: ❑ Pump Station/Force Main or Gravity Sewer where flow will be permitted in subsequent permits that connect to this line. Please provide supplementary infonnation indicating the approximate timeframe for permitting upstream sewers with flow. ® Flow has already been allocated in Permit Number: WQCS00137 Issuance Date: March 26, 2018 ® Rehabilitation or replacement of existing sewers with no new flow expected ❑ Other (Explain): FORM: FTA 10-23 Page 2 of 5 VII. GRAVITY SEWER DESIGN CRITERIA (If Applicable) - 02T .0305 & MDC (Gravity Sewers): 1. Summarize gravity sewer to be permitted: Size (inches) Length (feet) Material 8 110 C900 DR 18 PVC ➢ Section II & III of the MDC for Permitting of Gravity Sewers contains information related to design criteria ➢ Section III contains infonmation related to minimum slopes for gravity sewer(s) ➢ Oversizing lines to meet minimum slope requirements is not allowed and a violation of the MDC VIII. PUMP STATION DESIGN CRITERIA (If Applicable) 02T .0305 & MDC (Pump Stations/Force Mains): PROVIDE A SEPARATE COPY OF THIS PAGE FOR EACH PUMP STATION INCLUDED IN THIS PROJECT l . Pump station number or name: See Attachment 1 for information pertaining to Section VIII 2, Approximate Coordinates (Decimal Degrees): Latitude: 0Longitude: - ° 3. Total number of pumps at the putnp station: 3. Design flow of the pump station: millions gallons per day (firm capacity) ➢ This should reflect the total GPM for the pump station with the largest pump out of service, 4. Operational point(s) per pump(s): gallons per minute (GPM) at feet total dynamic head (TDH) 5. Summarize the force main to be permitted (for this Pump Station): Size (inches) Length (feet) Material If any portion of the force main is less than 4-inches in diameter, please identify the method of solids reduction per MDCPSFM Section 2.01C.1.b. ❑ Grinder Pump ❑ Mechanical Bar Screen ❑ Other (please specify) 6. Power reliability in accordance with 15A NCAC 02T .0305(h)(1): ❑ Standby power source or ❑ Standby pump ➢ Must have automatic activation and telemetry - 15A NCAC 02T.0305(h)(1)(B). ➢ Required for all pump stations with an average daily flow greater than or equal to 15,000 gallons per day ➢ Must be permanent to facility and may not be portable Or if the pump station has an average daily flow less than 15,000 gallons per day I5A NCACO2T.0305(h)(1)(C): ❑ Portable power source with manual activation, quick -connection receptacle and telemetry - or ❑ Portable pumping unit with plugged emergency pump connection and telemetry: ➢ Include documentation that the portable source is owned or contracted by the applicant 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 as part of this permit application in the case of a multiple station power outage. FORM: FTA 10-23 Page 3 of 5 IX. SETBACKS & SEPARATIONS — (02B .0200 & 15A NCAC 02T.0305(f)): 1. Does the project comply with all separations/alternatives found in 15A NCAC 02T ;0305(f) & (a)? ® Yes ❑ No I SA NCAC 02T.0305(f) contains minimum separations that shall be provided for sewer systems: Setback Parameter* Separation Required Storm sewers and other utilities not listed below (vertical) 18 inches 2Water mains (vertical - water over sewer preferred, including in benched trenches) 18 inches 'Water mains (horizontal) 10 feet Reclaimed water lines (vertical - reclaimed over sewer) 18 inches Reclaimed water lines (horizontal - reclaimed over sewer) 2 feet **Any private or public water supply source, including any wells, WS-1 waters of Class I or Class 11 impounded reservoirs used as a source of drinking water, and associated wetlands. 100 feet **Waters classified WS (except WS-1 or WS-V), B, SA, ORW, HQW, or SB from normal high water (or tide elevation) and wetlands associated with these waters (see item IX.2) 50 feet **Any other stream, lake, impoundment, or ground water lowering and surface drainage ditches, as well as wetlands associated with these waters or classified as WL. 10 feet Any building foundation (horizontal) 5 feet Any basement (horizontal) 10 feet Top slope of embankment or cuts of 2 feet or more vertical height 10 feet Drainage systems and interceptor drains 5 feet Any swimming pools 10 feet Final earth grade (vertical) 36 inches ➢ If noncompliance with 02T.0305(f) or (a). see Section X.1 of this application * 15A NCAC 02T.0305(g) contains alternatives where separations in 02T.0305(f) cannot be achieved. Please check "yes" above if these alternatives are used and provide narrative information to explain. **Stream classifications can be identified using the Division's NC Surface Water Classifications webpaae 2. Does this project comply with the minimum separation requirements for water mains? ® Yes [:]No ❑ NIA ➢ If no, please refer to 15A NCAC 18C.0906(f) for documentation requirements and submit a separate document, signed/sealed by an NC licensed PE, verifying the criteria outlined in that Rule. 3. Does the project comply with separation requirements for wetlands? ❑ Yes ❑ No ® N/A ➢ Please provide supplementary information identifying the areas of non-confonuance. ➢ See the Division's draft separation requirements for situations where separation cannot be met. ➢ No variance is required if the alternative design criteria specified is utilized in design and construction. 4. Is the project located in a river basin subject to any State buffer rules? ❑ Yes Basin name: ® No If yes, does the project comply with setbacks found in the river basin rules per 15A NCAC 02B .0200? ❑ Yes ❑ No ➢ This includes Trout Buffered Streams per 15A NCAC 213.0202 5. Does the project require coverage/authorization under a 404 Nationwide/individual permits ❑ Yes ® No or 401 Water Quality Certifications? ➢ Please provide the permit number/permitting status in the cover letter if coverage/authorization is required. 6. Does project comply with 15A NCAC 02T.0105(c)(6) (additional permits/certifications)? ® Yes ❑ No Per 15A NCAC 02T.0105(c)(6), directly related environmental permits or certification applications must be being prepared, have been applied for, or have been obtained. Issuance of this permit is contingent on issuance of dependent permits (erosion and sedimentation control plans, stornwater management plans, etc.). 7. Does this project include any sewer collection lines that are deemed "high -priority?" [-]Yes ® No Per 15A NCAC 02T.0402, "high -priority sewer" means any aerial sewer, sewer contacting surface waters, siphon, or sewers positioned parallel to streambanks that are subject to erosion that undermines or deteriorates the sewer. Siphons and sewers suspended through interference/conflict boxes require a variance approval. ➢ If yes, include an attachment with details for each line, including type (aerial line, size, material, and location). High priority lines shall be inspected by the pernrittee or its representative at least once every six -months and inspections documented per 15A NCAC 02T.0403(a)(5) or the permittee's individual System -Wide Collection permit. FORM: FTA 10-23 Page 4 of 5 Y. CERTIFICATIONS: 1, Does the submitted system comply with 15A NCAC 02T, the Minimum Design Criteria for the Permitting of Purnp Stations and Force Mains (latest version), and the Gravity Sewer Minimum Design Criteria (latest version) as applicable? ® Yes ❑ No If no, for projects requiring a single variance, complete and submit the Variance/Alternative Design Request application (VADC 10-14) and supporting documents for review to the Central Office. Approval of the request will be issued concurrently with the approval of„the permit, and projects requiring a variance approval may be subject to longer review times. For proiects requiring two or more variances or where the variarce is determined by the Division to be a si nfficaut portion of the project, the full technical review is required. 2. Professional Engineer's Certification: I, Dania] Khan, P.E. _ ___ , attest that this application for Sewer Line and, Lift Station Replacement (Professional Engineer's name from Application Item IIl.1.) (Project Name from Application Item II.1) has been reviewed by me and is accurate, complete and consistent with the information supplied in the plans, specifications, engineering calculations, and all other supporting documentation to the best of my knowledge. I further attest that to the best of my knowledge the proposed design has been prepared in accordance with the applicable regulations, Minimum Design Criteria for Gravity Sewers (latest +rersion), and the Minimum Design Criteria for the Fast -Track Permitting of Pump Stations and.Force Mains (latest version). Although other professionals may have developed certain portions of this submittal package, inclusion of these materials under my signature and seal signifies that I have reviewed this material and have judged it to be consistent with the proposed design. NOTE — In accordance with General Statutes 143-215.6A and 143-215.6B, any person who knowingly makes any false statement, representation, or certification in any application package shall be guilty of a Class 2 misdemeanor, which may include a fine not to exceed M 0,000, as well as civil penalties up to $25,000 per violation. Misrepresentation of the application information, including failure to disclose any design non-compliance with the applicable Rules and esign criteria, may subject the North Carolina -licensed Professional Engineer to referral to the licensing board. (21 NCAC„�nlQl) North Carolina Professional Engineer's seal, signature, and date: 3. Applicant's Certification per 1 A NCAC 02T .0106(b): ,attest that this application for (Signature Authority Name from Application Item I.3.) (Project Name from Application Item Il. 1 ) attest that this application has been reviewed by me and is accurate and complete to the best of my knowledge. I understand that if all required parts of this application are not completed and that if all required supporting documentation and attachments are not included, this application package is subject to being returned as incomplete. I understand that any discharge of wastewater from this non -discharge system to surface waters or the land will result in an immediate enforcement action that may include civil penalties, injunctive relief, and/or criminal prosecution. I will make no claim against the Division of Water Resources should a condition of this permit be violated. I also understand that if all required parts of this application package are not completed and that if all required supporting information and attachments are not included, this application package will be returned to me as incomplete. NOTE — In accordance with General Statutes 143-215.6A and 143-215.6B, any person who knowingly makes any false statement, representation, or certification in any application package shall be guilty of a Class 2 misdemeanor, which may include a fine not to exceed $10,000 as well as civil penalties up to $25,000 per violation. . a wy f/! ! Signature. Date: FORM: FTA 10-23 Page 5 of 5 Attachment 1- Fast Track Permit Application Southport Sewer Line and Lift Station Replacement II. PROJECT INFORMATION Pump Station Name: Ninth Street Moore Street Park Avenue 1. Parcel ID: 237EB042 238HGO1501 221MCO2324 VIII. PUMP STATION DESIGN CRITERIA 1. Pump station number or name: Ninth Street Moore Street Park Avenue 2. Approximate coordinates (Decimal Lat. 33.927107°, Lat. 33.920848 , Lat. 33.934316°, degrees) Long.-78.027715°) Long.-78.014100' Long.-78.015657°) 3. Total number of pumps at the pump 2 2 2 station 4. Design flow of the pump station (MGD) p 0.432 0.576 0.4536 5. Operational point per 300 GPM @ 150' 400 GPM @ 108' 315 GPM @ 62' pump TDH TDH TDH 6. Summarize the force main to be permited for 35 LF of 6" RJPVC 103 LF of 6" 19 LF of 8" RJPVC this pump station: RJPVC 7. Power reliability in accordance with 15A Standby Generator Standby Generator Standby Generator NCAC 02T .0305(h)(1): �F I C> LL 73 5 a +_s CD Mcl O U � �� w •�'^ „�' 3 � � � to t yy J b C. w'"� �' m ti r x Cd zi As pp Firm •p a 'l;s1 1l�13t1 * s ilk" s'" um ME 11�i111� 1plllt� 1i1111. �ttil .. y tlo g'x 14rtrr �11��1��� e ,11UA1'�il��` t `� t►.� _ w 1!k i 111� y � # • ��qy,3[{}y yy �tt t�,: � - `l �43 j T�o� 0.f kTA(b'��1yU� 4411t i'+-�� yp� -y VI IMAM t ���� °` ��, ���� ��e� ��q� ��SW�' ��t��►��� weer � �r .� � (;���� y � H+4t�xFxs+til r• �x,Mr� � �1� �F�. � Vf�V � �,' IR Ib'ry f Q - _ `. o� cn v C Q f a 'S AWN , Y Jx 3J1y/+lY ' ) xL3 NIL IN s a 34£13r d 04 f+1 ji F` a 13 ECL m R1 } Ryr �1•���� { Y � n � �i ch i p 4� i 11111 P' a yea-tt►;� •1 '" i4i15�LN 4` i� a .r } 1.11111111t1 �w IT 11t1 1 1� 1Sw it AM 111'� s s .� t, r - �-,,: ,ter i.l pc� � �8���5 ��1111 • i ,��.1°,,'°'"' �l x17 j,I ,� �t��l r = z' •y_ ,.s ;� urtia w w Ra x l ri I f 1(NS _. :154,y�1 e �� �`� -.. IV 10 1 a j I►4ft, VPO I t � P, it trs4 i OirY� t1 °' m L o o Q w � a 2 a m U a N Ic W 111� ill%YZ/ rtf 111�1 W N # TS C •—• k y Q C s O OL O Q O ° 't 0 C1J 4 0e LL CD [5} tD LO � FD FD D cr N � 5 5 b .. � X t } Q c L N a 3 m CALCULATIONS FOR SEWER LINE AND LIFT STATION REPLACEMENT CITY OF SOUTHPORT, NORTH CAROLINA WKD Project No. 20220972,00.WL APRIL 10, 2024 Apr 10 2024 3:17 PM Danial Khan, P.E. W.K. Dickson, & Co., Inc. NC Firm License No. F-0374 300 N. Third Street, Suite 301 Wilmington, NC 28401 Tel. 910-762-4200 lftwl< community infrastructure consultants Wastewater Pump Station Force Main Design Calculations Moore Street PS Project Name: Sewer Line and Lift Station Replacement Location: Southport, NC Designed By: DK Checked By: RDB Date: 04/03/24 Project no.: 20220972.00.WL Design Pumping Flow Rate Peaking Factor Calculation Service Area Population — 150 Peak Factor = 18 + 4P 4 + SIP Calculated Peak Factor = 4.2 Design Peak Factor = 4.2 Determine Minimum Pump Rate Average Daily Flow = 30,731 GPD Peak Flow = 128793 GPD Minimum PumpingPLImping Rate Required — 89 GPM Design Pumping Rate = 400 GPM Eetirnated Source: PS tatalizar data vparming March 2022 to August 2022 provided L,v the City ofSouthporl Ctu'reni PS permitted capacity Cycle 'rime & 'Vet Well Geometry IC , Target Cycles Per Hour ADF = 21 gpin Pumping Rate = 400 gpm Time = 15.0 min. Cycles Per Hour = 4.0 Check Cycles Per Hour: OK Check Cycles Per Hour: OK Determine Wet well Diameter Required Volume — Pick Wet Well Diameter = Pick Wet Well Cycle = Volume in Cycle = 303 Gallons Ft Vert. Ft Gallons 8.0 1.25 1 470 Vertical Datum Used: NAVD 88 Determine Wet Well Invert & Float Elevations Wet well Dia. = 8.0 Ft *As required for complete submergence -1.42 -4.00 -5.25 -6.50 Force Main & Piping Design Off -Site Force Main 1 Data Design Pump Rate (gpm) = 400 Select Force Main Size (in) = 6 ](Average ID of FM) Velocity (fps) = 4.54 Meets Minimum Velocity Requirement? OK Meets Maximum Velocity Requirement? OK Line Length (ft) = 3,390 Account for Minor Losses = 2% Equiv Length (ft) = 3,458 Connection Point: Manifold Force Main Pump Station Piping Data Design Pump Rate (gpm) = Pick Wet Well & Valve Vault Piping Size (in) = Velocity (fps) = Meets Minimum Velocity Requirement? Meets Maximum Velocity Requirement? 400 6 4.54 OK > 2 FPS OK < 8 FPS Item Number of Fittin s L/D Ratio Equivalent Len th 45 bend 90 bend 11.25 bend Branch Tee Flow Check valve Plug Valve 0 18 0.00 2 30 30.00 0 7 0.00 1 60 30.00 1 135 67.50 2 22 22.00 0.00 0.00 0.00 Equivalent Fitting Length (ft) = Wet Well & Valve Vault Piping Length (ft) = Total Equivalent Pump Station Pipe Length (ft) = Equivalent Off -Site Diameter Length (ft) = 150 20 170 170 Total Equivalent Force Main Length (ft) = 3627 Pump Selection Force Main Diameter (in) = 6 Equivalent Force Main Length (ft) = 3627 Hazen -Williams C Factor = 110 Minimum Required Pump Rate (GPM) = 89 Design Pumping Rate (GPM) = 400 GPM Pressure Head at Connection "All On" (feet) Pressure Head at Connection "Only Proposed Pump Station On" (feet) I Static Head (feet) "All On" TDH (feet) "Only Proposed Pump Station On" TDH (feet) Velocity (fps) Pump Head (feet) 0 21 12A 19.5 1 41 32 0.0 138 100 21 12.4 19.5 46 37 1.1 130 200 21 12.4 19.5 59 51 2.3 122.0 300 21 12.4 19.5 80 72 3.4 115.0 400 21 12.4 1 %5 108 99 4.5 109 420 21 12.4 19.5 114 106 4.8 107 500 21 12.4 19.5 143 134 5.7 102.0 600 21 12.4 19.5 183 175 6.8 97 Pump Manufacturer: Barnes Model Number: SH 4XESHMB30044 Impeller Diameter: 1275 mm Horsepower: 20 Voltage: 460v 3phase 0) U E N A cn C v L 0 LL C CL E a CD O o0 co mot' CD C�CD0 N T T T T T 00 (D �t N 0 0 r— IN Q 0 0 0 "# LL 0 o UL 0 m � O d Station Operation Check Proposed Operational Point 440 GPM @ 108 TDH Check Wet well Cycle Times Wet well Wet well Wet well Wet well Diameter Area Cycle Volume (feet) (gal / VF) (ft) (gal) 8.0 376 1.3 470 Fill = Wet well Volume = 22.0 minutes ADF Run = Wet well Volume — 1.2 minutes Pump Rate - ADF Total = 23.3 minutes Cycle Time = 2.6 Cycles 1 Hour Meets Minimum Cycle Time? OK Meets Maximum Cycle Time? OK Station Operation Check Proposed Operational Point No. 2 420 GPM @ 107 TDH Check Wet well Cycle Times Wet well Wet well Wet well Wet well Diameter Area Cycle Volume (feet) (gal / VF) (ft) (gal) 8.0 376 1.3 470 Fill = Wet well Volume W 22.0 minutes ADF Run = Wet well Volume = 1.2 minutes Pump Rate - ADF Total = 23.2 minutes Cycle Time = 2.6 Cycles 1 Hour Meets Minimum Cycle Time? OK Meets Maximum Cycle Time? OK Valve Vault Buoyancy Calculations Vault Outside Length Vault Outside Width Vault Inside Length Vault Inside Width Vault Top Slab Elevation Vault Invert Elevation Extended Base length Extended Base Slab Thickness Top Slab Thickness Hatch Length Hatch Width 7.00 Feet Feet Feet Feet Feet Feet Feet Feet Feet 7.00 6.00 6.00 7.12 2.12 0.50 0.67 0.83 3.00 5.00 Calculate Total Volume of Vault Structure Volume of Vault Riser Sections 245.0 cf Volume of Vault Extended Base— 42.7 cf Total Volume of Vault Structure= 287.7 cf Calculate Total Volume of Water Displaced H2O Displaced = (Volume of Vault Structure) * (62.4 lbs/cf) H2O Displaced— 17950 lbs Calculate Weight of Vault Components Section Total Vol (Cu. Ft) Weight Top Slab (Minus Hatch Area) 28.3 3967 Riser 54.2 7583 Base Slab 42.7 5973 Totals— 125.2 17523 Total Weight of Concrete in Vault= 17523 lbs. Calculate Submerged Weight of Soil Above Extended Base/Footing Total Area of Extended Base 64 sf Total Area of Wet well Riser 49 sf Area of Extended Base less Vault 15 sf Height of Soil Above Extended Base 4.17 ft Volume of Soil Above Extended Base 63 of Weight of Soil Above Extended Base (estimated) 50 lbs/cf Total Weight of Soil Above Extended Base 3 l25 lbs/cf Flotation Protection Required? Weight of Concrete and Weight of Soil Above Extended Base: 20648 lbs Weight of Water Displaced By Vault: 17950 lbs Flotation Protection Required? [NO Vet Well Buoyancy Calculations Wet well Outside Dimensions 9.00 Feet Wet well Inside Dimensions 8.00 Feet Wet well Top Slab Elevation 7.12 Feet Wet well Invert Elevation -9.00 Feet Extended Base Slab Diameter 11.00 Feet Extended Base Slab Thickness 0.67 Feet Top Slab Thickness 0.83 Feet Calculate Total Volume of Wet well Structure Volume of Wet well Riser Sections= 1025 jcf Volume of Wet well Extended Base= 63 jef Total Volume of Wet well Structure= 1088 lcf Calculate Total Volume of Water Displaced H2O Displaced = (Volume of Wet well Structure) * (62.4 lbslcf) H2O Displaced= 67911 lbs Calculate Weight of Wet well Components Section Total Ht Weight Top Slab Thickness (ft.) 0.83 7422 Riser - Total Vertical Ft, 16.12 30132 Base Slab Thickness (ft.) 0.67 8870 Totals— 17.62 46424 Total Weight of Concrete in Wet well— 46424 lbs. Calculate Submerged Weight of Soil Above Extended Base/Footing Total Area of Extended Base Total Area of Wet well Riser Area of Extended Base less Wet well Height of Soil Above Extended Base Volume of Soil Above Extended Base Weight of Soil Above Extended Base (estimated) Total Weight of Soil Above Extended Base 95 sf sf sf ft cf lbs/cf lbs/ef 64 31 16 491 50 24536 Flotation Protection Required? Weight of Concrete and Weight of Soil Above Extended Base IM lbs Weight of Water Displaced By Wet Well: lbs Flotation Protection Required? Wastewater Pump Station Force Main Design Calculations Ninth Street PS Project Name: Sewer Line and Lift Station Replacement Location: Southport, NC Designed By: DK Checked By: RDB Date: 04/03/24 Project no.: 20220972.00.WL Design Pumping Flow Rate Peaking Factor Calculation Service Area Population — 150 Peak Factor = 18 + 4P 4+�P Calculated Peak Factor = 4.2 Design Peak Factor = 4.2 Determine Minimum Pump Rate Average Daily Flow = 78,785 GPD Peak Plow = 330190 GPD Minimum Pumping state Required = 229 GPM Design Pumping Rate = 300 GPM Estimated Source: PS (otalizar data ymming March 2022 to August 2022 provided by the Ciry of Soufhpart Currem PS permifted capacify Cycle Time & Wet Well Geometry M0 9 Target Cycles Per Hour ADF = 55 gpm Pumping Rate = 300 gpm Time = 15.0 min. Cycles Per Hour = 4.0 Check Cycles Per Hour: OK Check Cycles Per Hour: OK Determine Wet well Diameter Required Volume = Pick Wet Well Diameter = Pick Wet Well Cycle = Volume in Cycle = 671 Gallons Ft Vert. Ft Gallons 8.0 2.25 846 Vertical Datum Used: NAVD 88 Determine Wet Well Invert & Float Elevations Wet well Dia. = 8.0 Ft *As required for complete submergence -0.11 -1.00 -3.25 -5.50 Force Main & Piping Design I Off -Site Force Maid 1 Data Design Pump Rate (gpni) = 300 Select Force Main Size (in) 6 (Average 1D of FM) Velocity (fps) = 3.40 Meets Minimum Velocity Requirement? rOK K Meets Maximum Velocity Reguirentent? Line Length (ft) = 58 Account for Minor Losses = 3% Equiv Length (ft) = 60 Connection Point: Manifold Force Main Pump Station Piping Data Design Pump Rate (gpm) = Pick Wet Well & Valve Vault Piping Size (in) = Velocity (fps) = Meets Minimum Velocity Requirement? Meets Maximum Velocity Requirement? 300 6 3.40 OK > 2 FPS OK < 8 FPS Item Number of Fittings LID Ratio Equivalent Length 45 bend 90 bend 11.25 bend Branch Tee Flow Check valve Ball Valve 0 18 0.00 2 30 30.00 0 7 0.00 1 60 30.00 1 135 67.50 2 22 22.00 0.00 0.00 0.00 Equivalent Fitting Length (ft) — Wet Well & Valve Vault Piping Length (ft) = Total Equivalent Pump Station Pipe Length (ft) — Equivalent Pump Station Pipe Diameter Length (ft) = 150 405 555 555 Total Equivalent Force Main Length (ft) = 614 model includes 6"FM up to connection to 8" Central FM Pump Selection Force Main Diameter (in) = 6 Equivalent Force Main Length (ft) = 614 Hazen -Williams C Factor = 130 Minimum Required Pump Rate (GPM) - 229 Design Pumping Rate (GPM) = 300 GpM Pressure Head at Connection "All On" (feet) Pressure Head at Connection "Only Proposed Pump Station On" (feet) Static Head (feet) "All On" TDH (feet) "Only Proposed Pump Station On" TDH (feet) Velocity (fps) Pump Head (feet) 0 131.5 82 13.25 145 95 0.0 176 100 131.5 82 13.25 145 96 1.1 167 200 131.5 82 13.25 147 98 2.3 157 300 131.5 82 13.25 150 100 3.4 150 400 131.5 82 13.25 153 104 4.5 143 500 131.5 82 13.25 157 108 5.7 136 600 131.5 82 13.25 163 113 6.8 131 700 131.5 82 13.25 168 119 7.9 125 745 131.5 82 13.25 171 122 8.5 123 S00 131.5 82 13.25 175 I261 9.1 120 900 131.5 82 t3.25 182 1331 10.2 115 Pump Manufacturer: Barnes Model Number: 14XESHMB50044 Impeller Diameter: 1.310 in in Horsepower: 50 Voltage: 460v 3phase O co CO N N r r r r c0 (0 N' N 2 li• a a ti Q 0 co 0 Q N a a r M. Station Operation Check Proposed Operational Point 300 GPM @ 150 TDI I Check Wet well Cycle Times Wet well Wet well Wet well Wet well Diameter Area Cycle Volume (feet) (gal 1 VF) (ft) (gal) 8.0 376 2.3 846 Fill = Wet well Volume = 15.5 minutes ADF Run = Wet well Volume — 3.4 minutes Pump Rate - ADF Total = 18.9 minutes Cycle Time = 3.2 Cycles 1 Hour Meets Minimum Cycle Time? OK Meets Maximum Cycle Time? OK Station Operation Check Proposed Operational Point No. 2 745 GPM @ 123 TI.)I I Check Wet well Cycle Times Wet well Wet well Wet well Wet well Diameter Area Cycle Volume (feet) (gal 1 VF) (ft) (gal) 8.0 376 2.3 846 Fill = Wet well Volume = 15.5 minutes ADF Run = Wet well Volume — 1.2 minutes Pump Rate - ADF Total = 16.7 minutes Cycle Time = 3.6 Cycles 1 Hour Meets Minimum Cyele Time? OK Meets Maximum Cycle Time? OK Valve Vault Buoyancy Calculations Vault Outside Length Vault Outside Width Vault Inside Length Vault Inside Width Vault Top Slab Elevation Vault Invert Elevation Extended Base length Extended Base Slab Thickness Top Slab Thickness Hatch Length Hatch Width 7.00 Feel Feet Feet Feet Feet Feet Feet Feet Feet 7.00 6.00 6.00 11.74 6.49 0.50 0.67 0.83 3.00 5.00 Calculate Total Volume of Vault Structure Volume of Vault Riser Sections 257.3 lcf Volume of Vault Extended Base= 42.7 cf Total Volume of Vault Structure= 299.9 jcf Calculate Total Volume of Water Displaced H2O Displaced = (Volume of Vault Structure) * (62.4 lbs/cf) H2O Displaced= 18715 lbs Calculate Weight of Vault Components Section Total Vol (Cu. Ft) 'Weight Top Slab (Minus Batch Area) 28.3 3967 Miser 57.4 8038 Base Slab 42.7 5973 Totals= 128.4 17978 Total Weight of Concrete in Vault= 17978 lbs. Calculate Submerged Weight of Soil Above Extended Base/Footing Total Area of Extended Base Total Area of Wet well Riser Area of Extended Base less Vault Height of Soil Above Extended Base Volume of Soil Above Extended Base Weight of Soil Above Extended Base (es(imated) Total Weight of Soil Above Extended Base Flotation Protection Required? 641 sf 491 sf 501lbslcf 33131 lbs/cf Weight of Concrete and Weight of Soil Above Extended Base: 21291 lbs Weight of Water Displaced By Vault: 18715 lbs Flotation Protection Required? NO Wet Well Buoyancy Calculations Wet well Outside Dimensions Wet well Inside Dimensions Wet well Top Slab Elevation Wet well Invert Elevation Extended Base Slab Diameter Extended Base Slab Thickness Top Slab Thickness 9.00 Feet Feet Feet Feet Feet Feet Feet 8.00 11.74 -8.00 11.00 0.67 0.83 Calculate Total Volume of Wet well Structure Volume of Wet well Riser Sections= 1255 jef Volume of Wet well Extended Base— 63 jcf Total Volume of Wet well Stricture= 1318 jef Calculate Total Volume of Water Displaced H2O Displaced � (Volume of Wet well Structure) * (62.41bs/ef) H2O Displaced= 82274 lbs Calculate Weight of Wet well Components Section Total Ht Weight Top Slab Thickness (ft.) 0.83 7422 Riser - Total Vertical Ft. 19.74 36899 Base Slab Thickness (ft.) 0.67 8870 Totals— 21.24 53191 Total Weight of Concrete in Wet well— 53191 lbs, Calculate Submerged Weight of Soil Above Extended Base/Footing Total Area of Extended Base Total Area of Wet well Riser Area of Extended Base less Wet well Height of Soil Above Extended Base Volume of Soil Above Extended Base Weight of Soil Above Extended Base (estimated) Total Weight of Soil Above Extended Base 95 sf sf sf ft of lbs/cf lbs/cf 64 31 19 604 50 30222 Flotation Protection Required? Weight of Concrete and Weight of Soil Above Extended Base 83413 lbs Weight of Water Displaced By Wet Well; 82274 lbs Flotation Protection Required? NO Wastewater Pump Station Force Main Design Calculations Park Avenue PS Project Name: Sewer Line and Lift Station Replacement Location: Southport, NC Designed By: DK Checked By: RDB Date: 04/03/24 Project no.: 20220972.00.WL Design Pumping Flow Rate Peaking Factor Calculation Service Area Population — 150 Peak Factor = 18 + �P 4+P Calculated Peak Factor = 4.2 Design Peak Factor = 4.2 Determine Minimum Pump Rate Average Daily Flow = 78,139 GPD Peak Flow = 327482 GPD Minimum Purnping Rate Require = 227 GPM Design Pumping Rate = 315 GPM Estimated Source: PS tofalixar data spanning March 2022 to August 2022 provided by the Cih• of Southport Currud PSpennined capacitr is 300 gpnr, new rate proposed io greet 2 ft/s scour in S" FAJ Cycle 'rime & Wet Well Geometry :• • Target Cycles Per Hour ADF = 54 gpm Pumping Rate = 315 gpm Time = 24.0 mm. Cycles Per Hour = 2.5 Cheek Cycles Per Hour. OK Check Cycles Per Hour: OK Determine Wet well Diameter Required Volume = Pick Wet Well Diameter = Pick Wet Well Cycle = Volume in Cycle = 1078 Gallons Ft Vert. Ft Gallons 12.0 1.25 1057 Vertical Datum Used: NAVD 88 Determine Wet Well Invert & Float Elevations Wet well Dia. = 12.0 Ft *As required for complete submergence 1.97 -2.00 -3.25 -4.50 Force Main & Piping Design I Off -Site Force Main Data I Design Punip Rate (gpm) = 315 Select Force Main Size (in) = 8 (Average ID of FM) Velocity (fps) = 2.01 Meets Minimum Velocity Requirement? rOK K Meets Maximum Velocity Requiran+ent? Line Length (ft) =1 9,06Q Account for Minor Losses — 1% E(iuiv Length 01) = 9,151 Connection Point: ManifoId Force Main Pump Station Piping Data Design Pump Rate (gpm) = Pick Wet Well & Valve Vault Piping Size (in) = Velocity (fps) = Meets Minimum Velocity Requirement? Meets Maximum Velocity Requirement? 315 8 2.01 OK > 2 FPS OK < 8 FPS Item Number of Fittin s LID Ratio Equivalent Len th 45 bend 90 bend 11.25 bend Branch Tee Flow Check valve Plug Valve 0 18 0.00 2 30 40,00 0 7 0,00 1 60 40.00 1 l35 90.00 2 22 29.33 0.00 0.00 0.00 Equivalent Fitting Length (ft) — Wet Well & Valve Vault Piping Length (ft) = Total Equivalent Pump Station Pipe Length (fl) = Equivalent Off -Site Diameter Length (ft) = 199 20 219 219 Total Equivalent Force Main Length (ft) = 9370 8"force main under separate project Pump Selection Force Main Diameter (in) = 8 Equivalent Force Main Length (ft) = 9370 Hazen -Williams C Factor = 130 Minimum Required Pump Rate (GPM) = 227 Design Pumping Rate (GPM) = 315 GpM Pressure Head at Connection "All On" (feet) Pressure Head at Connection "Only Proposed Pump Station On" (feet) Static Head (feet) "Ali On" TDH (feet) "Only Proposed Pump Station On" TDH (feet) Velocity (fps) Pump Head (feet) 0 19.8 8.5 22.25 42 31 0.0 80 100 19.8 8.5 22.25 44 33 0.6 73 200 19.8 8.5 22.25 51 40 L3 66 300 19.8 8.5 22.25 61 49 1.9 62 315 19.8 8.5 22.25 62 51 2.0 62 380 19.8 8.5 22.25 1 P90 59 2.4 59 500 19.8 8.5 22.25 78 3.2 54 Pump Manufacturer: I Barnes Model Number: 4XESCDG150N4 Impeller Diameter: 1 220 mni Horsepower: 15 Voltage: 460v 3pl�ase 0 E (1) N e5 W u L. 0 LL CL E a N L} 7• @ L E Q O 0 ai 00 Ln M Y O ❑ a C N �pLo V) a @j ❑ E co O' Ln d M o rn 00 o� coo Lo a IT n N o 0 (l=I) WO I I 0 0 LO O O a o C7 Q ch 3 0 LL a 0 N O O 0 Station Operation Check Proposed Operational Point 315 GPM @ 62 TDH Check Wet well Cycle Times Wet well Wet well Wet well Wet well Diameter Area Cycle Volume (feet) (gal / VF) (ft) (gal) 12.0 846 1.3 1057 Fill Wet well Volume = 19.5 Minutes ADF Run = Wet well Volume = 4.1 minutes Pump Rate - ADF Total — 215 minutes Cycle Time = 2.5 Cycles / Hour Meets Minimunn Cycle Time? OK Meets Maximum Cycle Time? OK Station Operation Check Proposed Operational Point No. 2 380 GPM @ 59 TDI Check Wet well Cycle Tines Wet well Wet well Wet well Wet well Diameter Area Cycle Volume (feet) (gal / VF) (ft) (gal) 12.0 846 1.3 t057 Fill — Wet well Volume — 19.5 minutes ADF Run = Wet well Volume = 3.2 ininutes Pump Rate - ADF Total = 22.7 minutes Cycle Time 2.6 Cycles / Hour Meets Minimum Cycle Time? OK Meets Maximum Cycle Time? OK Valve Vault Buoyancy Calculations Vault Outside Length Vault Outside Width Vault Inside Length Vault Inside Width Vault Top Slab Elevation Vault Invert Elevation Extended Base length Extended Base Slab Thickness Top Slab Thickness Hatch Length Hatch Width 7.00 Feet Feet Feet Feet Feet Feet Feet Feet Feet 9.00 6.00 8.00 10.79 5.37 1.00 0.67 0.83 3.00 5.00 Calculate Total Volume of Vault Structure Volume of Vault Riser Sections= 341.5 jef Volume of Vault Extended Base= 66.3 cf Total Volume of Vault Structure= 407.8 jcf Calculate Total Volume of Water Displaced H2O Displaced = (Volume of Vault Structure) * (62.4 lbs/cf) H2O Displaced— 25446 lbs Calculate Weight of Vault Components Section Total Vol (Cu. Ft) Weight Top Slab (Minus Hatch Area) 40.0 5600 Riser 68.8 9632 Base Slab 66.3 9286 Totals= 175.1 24518 Total Weight of Concrete in Vault— 24518 lbs. Calculate Submerged Weight of Soil Above Extended Base/Footing Total Area of Extended Base 99 sf Total Area of Wet well Riser- 63 sf Area of Extended Base less Vault 36 sf Height of Soil Above Extended Base 4.59 ft Volume of Soil Above Extended Base 165 cf Weight of Soil Above Extended Base (estimated) 50 ]bs/cf Total Weight of Soil Above Extended Base 8256 ]bs/cf Flotation Protection Required? Weight of Concrete and Weight of Soil Above Extended Base 32774 lbs Weight of Water Displaced By Vault: 25446 lbs Flotation Protection Required? NO Wet Well Buoyancy Calculations Wet well Outside Dimensions 13.00 Feet Wet well Inside Dimensions 12.00 Feet Wet well Top Slab Elevation 10.79 Feet Wet well Invert Elevation -7.00 Feet Extended Base Slab Diameter 17.00 Feet Extended Base Slab Thickness 0.67 Feet Top Slab Thickness 0.83 Feet Calculate Total Volume of Wet well Structure Volume of Wet well Riser Sections= 2360 jcf Volume of Wet well Extended Base= 152 of Total Volume of Wet well Structure— 2512 1 of Calculate Total Volume of Water Displaced H2O Displaced = (Volume of Wet well Structure) * (62.4 lbs/cf) H2O Displaced 156756 lbs Calculate Weight of Wet well Components Section Total Ht Weight Top Slab Thickness (ft.) 0.83 15485 Riser - Total Vertical Ft. 17.79 48903 Base Slab Thickness (ft.) 0.67 21291 Totals= 19.29333 85679 Total Weight of Concrete in Wet well= 85679 lbs. Calculate Submerged Weight of Soil Above Extended Base/Footing Total Area of Extended Base 227 sf Total Area of Wet well Riser 133 sf Area of Extended Base less Wet well 94 sf Height of Soil Above Extended Base 17 ft Volume of Soil Above Extended Base 1630 of Weight of Soil Above Extended Base (estimated) 50 lbslcf Total Weight of Soil Above Extended Base 81477 Ibs/ef Flotation .Protection Required? Weight of Concrete and Weight of Soil Above Extended Base 167156 lbs Weight of Water Displaced By Wet Well 156756Ibs Flotation Protection Required? NO Water Resources ENVIFIONMENTAL OVALITY March 26, 2018 Mr David H Fox, Public Works Director City of Southport . 1029 N Howe Street Southport, NC 28461 Subject Permit No WQCS00137 City of Southport City of Southport Collection System Brunswick County Dear Mr Fox. ROY COOPER Gote mo! MICHAEL S REGAN Sauelar) LINDA CULPEPPER Inca un do ecra In accordance with your application received February 26, 2018, we are forwarding herewith Permit No WQCS00137, dated March 26, 2018, to the City of Southport forthe operation and maintenance of the subject wastewater collection system This permit shall be effective from March 26, 2018 until March 1, 2026 and shall be subject to the conditions and limitations specified herein it is your responsibility to thoroughly review this permit. Please pay particular attention to the monitoring and reporting requirements in this permit and any special conditions Changes have been made to the boiler plate language of the permit Most of the changes are for clarification purposes, however Condition 1(3) has been removed The Department of Environmental Quality (DEQ) believes that condition was included erroneously in previous permits It was included based on proposed rulemaking by EPA which was never promulgated and, in the continued absence of Federal regulations, DEQ lacks authority to include such language in a permit DEQ will continue to exercise enforcement discretion when evaluating sanitary sewer overflows that may be considered to be beyond the reasonable control of the Permittee. A highlighted copy of the permit identifying the changes made Is available at: htt ncdenr s3 amazonaws com s3fs- public/Water%20Quahty(Surface%20Water%20Protection/PEEZCS/WCS%20(Collection%20System)/Updated %20WQCS%20Template%2015.05.18%20(highlighted).Pdf For purposes of permitting, the collection system is considered to be any existing or newly installed system extension up to the wastewater treatment facility property or point of connection with a separately owned sewer system The collection system is considered all gravity lines, pump stations, force mains, low pressure sewer systems, STEP systems, vacuum systems, etc and associated piping, valves and appurtenances that help to collect, manage and transport wastewater to a wastewater treatment plant under the Permittee's ownership or maintained and operated by the Permittee through a perpetual legal agreement Satellite systems are systems tributary to the Permittee's collection system but those collection systems are not owned or maintained by the Permittee. The system description provided on Page I of this permit is meant to provide a general idea about the size of the system and may not be all inclusive of the collection system at the time of permit issuance or afterward. 1617 Mad Service Center, Raleigh, North Carolina 27699-1617 Phone 919-807-63001 Internet www ncwaterquality org An Equal Opportunity 1Aflirmallve Action Employer— Made in part by recycled paper City of Southport Collection System March 26, 2018 A discharge of wastewater to the environment from the Permittee's wastewater collection system prior to reaching the wastewater treatment facilities is referred to herein as a Sanitary Sewer Overflow (SSO) The evaluation of enforcement options after an SSO will be determined considering all relevant information available or requested of the Permittee Compliance with all conditions of the permit as well as all statutes and regulations pertaining to the wastewater collection system must be maintained or appropriate enforcement actions may be taken as noted in Condition Vl(2). A reportable SSO is an SSO greater than 1,000 gallons to the ground or an SSO of any amount that reaches surface water (including through ditches, storm drains, etc ) Reporting requirements including the required verbal report and written report to the appropriate regional office are referenced in Condition IV(2). Form CS-SSO can be downloaded from the SSO Reporting area at http•//ncdenr.s3.amazonaws com/s3fs- public/Water%20Quality/Surface%20Water•©20Protection/PERCS/WCS%20(SSO%20Documents)/CS- SSO(2015) doc A notice of deficiency (NOD), notice of violation (NOV), civil penalty, and/or a moratorium on the addition of waste to the system may be issued if adequate justification for an SSO is NOTsubmitted to the regional office In order to submit a claim for justification of an SSO, you must use Part II of form CS-SSO with additional documentation as necessary DWR staff will review the justification claim and determine if enforcement action is appropriate Please be advised that the information needed to justify a spill is very comprehensive 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 thirty days following the receipt of this permit. This request must be in the form of a written petition, conforming to Chapter 150E of the 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 have questions regarding compliance, contact the appropriate regional office If you need additional information concerning this permit, please contact Steve Lewis at (919) 807-6308. Sincerely, for Linda Culpepper Interim Director, Division of Water Resources by Deborah Gore, Supervisor Pretreatment, Emergency Response, Collection System Unit (PERCS) enclosure Permit No WQCS00137 cc Wilmington Regional Office, Water Quality Regional Operations West Brunswick WWTF Water Resources Central Files -- WQCS00137 (electronic) Maureen Kinney, NC Operators Certification Program (electronic) PERCS Files (electronic) STATE OF NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION DEPARTMENT OF ENVIRONMENTAL QUALITY SYSTEMWIDE COLLECTION SYSTEM PERMIT 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 Southport WQCS00137 FOR THE operation and maintenance of a wastewater collection system consisting of, at the time of permit issuance, approximately 5 85 miles of gravity sewer, approximately 18.25 miles of pressure sewer, approximately 26.1 miles of force main, 30 duplex pump stations, and all associated piping, valves, and appurtenances required to make a complete and operational wastewater collection system to serve the City of Southport and any deemed permitted satellite communities pursuant to the application received February 26, 2018, and in conformity with the documents referenced therein and othersupporting data subsequently filed and approved by the Department of Environmental Quality and considered a part of this permit This permit shall be effective from March 26, 2018 until March 1, 2026, and shall be subject to the following specified conditions and limitations - Page 1 of 7 1. PERFORMANCE STANDARDS 1. The sewage and wastewater collected by this system shall be treated in the properly permitted Wastewater Treatment Facility identified in the permit application and documented in the Division's database [15A NCAC 02T 01OS (b)] The wastewater collection system shall be effectively managed, 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 In the event that the wastewater collection system fails to perform satisfactorily, including the creation of nuisance conditions, the Permittee shall take immediate actions as per the Response Action Plan (Condition II(9)), as well as any actions that may be required by the Division of water Resources (Division), such as the construction of additional or replacement sewer lines and/or equipment [15A NCAC 02T .0108 (b)) 3. The Permittee shall establish by ordinance, inter -local agreement or contract its legal authority to require new sewers be properly constructed, to ensure proper inspection and testing of sewer mains and service laterals; to address flows from satellite systems and to take enforcement action as required by Condition 1(4). [G S 143-215 913, G.S 143-215 1(f)(1)] 4 The Permittee shall develop and implement an educational fats, oils and grease program that shall include at least semiannual distribution of educational material targeted at both residential and non- residential users The Permittee shall also develop and implement an enforceable fats, oils and grease program for non-residential users under which the Permittee can take enforcement against users who have not properly installed, operated and maintained grease traps or grease interceptors as directed or otherwise violated the terms of the enforcement program pertaining to fats, oils and grease [15A NCAC 02T .0108 (b)] 5 The Permittee shall adopt and implement a Capital Improvement Plan (CIP) to designate funding for reinvestment into the wastewater collection system infrastructure The CIP should address the short- term needs and long-term "master plan" concepts The CIP should typically cover a three to five year period and include a goal statement, description of the project area, description of the existing facilities, known deficiencies (over a reasonable period) and forecasted future needs. Cost analysis is integral to the CIP [G S 143-215.913] Overflow piping from manholes and pump stations, excluding piping to approved equalization structures, known or discovered after permit issuance shall be immediately removed or permanently capped Plugged or valved emergency pumping connections are allowable for portable pumping or rerouting without intentionally bypassing the wastewater treatment facility. [15A NCAC 02T 0108 (b)] 7 The Permittee shall maintain a contingency plan for pump failure at each pump station If one of the pumps in a pump station containing multiple pumps fails, the process of repairing or replacing the pump shall be initiated immediately and the new parts or pump shall be installed as soon as possible. The permittee shall provide justification for delay in initiating the process for repair or replacement at the Division's request. If the pump in a simplex pump station serving more than a single building or pump stations not capable of pumping at a rate of 2.5 times the average daily flow rate with the largest pump out of service fails, it shall be replaced immediately [15A NCAC 02T 0305 (h) (1)] Page 2 of 7 Each pump station shall be clearly and conspicuously posted with a pump station identifier and an emergency contact telephone number at which an individual who can initiate or perform emergency service for the wastewater collection system 24 hours per day, seven days per week can be contacted This emergency contact telephone number shall be coupled with instructions that the emergency contact should be called if the visual alarm illuminates, if the audible alarm sounds, or if an emergency is apparent [15A NCAC 02T .0305 (h) (2)] 9 Pump station sites, equipment and components shall have restricted access. 115A NCAC 02T .0305 (h) (4)] 10 Pump stations that do not employ an automatic polling feature (i a routine contact with pump stations from a central location to check operational status of the communication system) shall have both audible and visual high water alarms The alarms shall be weather-proof and placed in a clear and conspicuous location Permits issued for the construction of pump stations that included high water alarms in the description must maintain the alarms even if simple telemetry (i e. notification of an alarm condition initiated by the pump station control feature) is installed [15A NCAC 02T 0305 (h) (1)] 11 For all newly constructed, modified and rehabilitated pump stations, all equipment and components shall be sealed within a corrosion -resistant coating or encasement to the extent practicable and equivalent to the minimum design criteria unless the permittee can demonstrate it is not practicable or another form of corrosion resistance is employed [15A NCAC 02T 0108 (b)] 11. OPERATION AND MAINTENANCE REQUIREMENTS 1 Upon classification of the collection system by the Water Pollution Control System Operators Certification Commission (WPCSOCC), the Permittee shall designate and employ a certified operator to be in responsible charge (ORC) and one or more certified operator(s) to be back-up ORC(s) of the facilities in accordance with 15A NCAC 8G 0201 The ORC shall visit the system within 24 hours of knowledge of a bypass, spill, or overflow of wastewater from the system, unless visited by the Back -Up ORC, and shall comply with all other conditions of 15A NCAC 8G 0204. [15A NCAC 08G .0200 et seq.] The Permittee shall develop and adhere to a schedule for reviewing all inspection, maintenance, operational and complaint logs If the review process results in the identification of any recurring problem in the wastewater collection system that cannot be resolved in a short time period, the Permittee shall establish a plan for addressing the problem(s) [15A NCAC 02T 0108 (b)] 3 The Permittee shall develop and adhere to a schedule for testing emergency and standby equipment. 115A NCAC 02T .0108 (b)] 4 The Permittee shall develop and implement a routine pump station inspection and maintenance program which shall include the following maintenance activities a. Cleaning and removing debris from the pump station structure, outside perimeter, and wet well, b Inspecting and exercising all valves; c. Inspecting and lubricating pumps and other mechanical equipment, and d Verifying the proper operation of the alarms, telemetry system and auxiliary equipment. [15A NCAC 02T 0108 (b)] Page 3 of 7 5 For each pump station without pump reliability (Le simplex pump stations serving more than a single building or pump stations not capable of pumping at a rate of 2 5 times the average daily flow rate with the largest pump out of service), at least one fully operational spare pump capable of pumping peak flow shall be maintained on hand [15A NCAC 02T 0305 (h) (1) (A)] 6 The Permittee shall maintain on hand at least two percent of the number of pumps installed, but no less than two pumps, that discharge to a pressure sewer and serve a single budding, unless the Permittee has the abilityto purchase and install a replacement pump within 24 hours of first knowledge of the simplex pump failure or within the storage capacity provided in a sewer line extension permit. [15A NCAC 02T .0108 (b)] 7 Rights -of -way and/or easements shall be properly maintained to allow accessibility to the wastewater collection system unless the Permittee can demonstrate the ability to gain temporary access in an emergency situation where existing land -use conditions do not allow the establishment and maintenance of permanent access In this case, the Permittee shall continue to observe the lines visually, utilize remote inspection methods (e,g. CCTV) and use the opportunity of drier conditions to perform further inspections and necessary maintenance. [15A NCAC 02T .0108 (b)] The Permittee shall assess cleaning needs, and develop and implement a program for appropriately cleaning, whether by hydraulic or mechanical methods, the wastewater collection system At least 10 percent of the gravity wastewater collection system, selected at the discretion of the ORC, shall be cleaned each year. Preventative cleaning is not required for sewer lines less than five years old unless inspection otherwise reveals the need for cleaning or cleaning is required by a sewer line extension permit. [15A NCACO2T.0108 (b)] 9 The Permittee shall maintain a Response Action Plan that addresses the following minimum items: a. Contact phone numbers for 24-hour response, including weekends and holidays; b. Response time; c. Equipment list and spare parts inventory; d. Access to cleaning equipment; e Access to construction crews, contractors and/or engineers; f. Source(s) of emergency funds, g. Site restoration and clean up materials; and h. Post-SSO assessment. [15A NCAC 02T .0108 (b)] 10. The Permittee, or their authorized representative, shall conduct an on -site evaluation for all SSOs as soon as possible, but if feasible no more than two hours after first knowledge of the SSO. The Permittee shall document in its 5-day report why it was unable to initially respond to any SSO location within two hours. [15A NCAC 02T .0108 (b)] 11 In the event of an SSO or blockage within the wastewater collection system, the Permittee shall restore the system operation, remove visible solids and paper, restore any ground area and restore the surroundings. [15A NCAC 02T .0108 (b)] III. RECORDS 1. Records shall be maintained to document compliance with Conditions 1(4), 11(2)-11(4), II(7) - II(8),1V(3) and V(1) -V(4) Records shall be kept on file for a minimum of three years [15A NCAC 02T .0108 (b)] Page 4 of 7 2 The Permittee shall maintain adequate records pertaining to SSOs, and SSO or wastewater collection system complaints for a minimum of three years. These records shall include, but are not limited to, the following information a Date of 550 or complaint; b Volume of wastewater released as a result of the SSO and/or nature of complaint, c Location of the SSO and/or complaint, d. Estimated duration of the 550; e Individual from the Division who was informed about the SSO and/or complaint, when applicable, f Final destination of the SSO, g Corrective actions, h Known environmental/human health impacts resulting from the SSO; and i How the SSO was discovered. [15A NCAC 02T 0108 (b)) 3 The Permittee shall maintain an up-to-date, accurate, comprehensive map of its wastewater collection system that also notes the locations where other wastewater collection systems become tributary. If a comprehensive map of the collection system has not been established, a rough sketch shall be drawn The Permittee shall map approximately 10 percent of its existing collection system each year for the next ten years beginning at the original permit issuance date, or until complete, whichever is sooner The comprehensive map shall include, but is not limited to pipe size, pipe material, pipe location, flow direction, approximate pipe age, and each pump station identification, location and capacity [15A NCAC 02T 0108 (b)] 4 The Permittee shall maintain records of all of the modifications and extensions to the collection system permitted herein The Permittee shall maintain a copy of the construction record drawings and specifications for modifications/extensions to the wastewater collection system for the life of the modification/extension Information concerning the extension shall be incorporated into the map of the wastewater collection system within one year of the completion of construction. The system description contained within this permit shall be updated to include this modification/extension information upon permit renewal [15A NCAC 02T 0108 (b)] IV. MONITORING AND REPORTING REQUIREMENTS 1. In the event of an SSO the Division may require monitoring that is necessary to ensure surface water and groundwater protection and an acceptable sampling and reporting schedule shall be implemented [15A NCAC 02T .0108 (c)] 2 The Permittee shall verbally report to a Division of Water Resources staff member at the Wilmington Regional Office, at telephone number (910) 796-721.5 as soon as possible, but in no case more than 24 hours following first knowledge of the occurrence of the following circumstances within the collection system which is under the Permittee's ownership or maintained and operated by the Permittee through a perpetual legal agreement. a Any SSO and/or spill over 1,000 gallons to the ground; or b. Any SSO and/or spill, regardless of volume, that reaches surface water. Voice mail messages orfaxed information shall not be considered as the initial verbal report SSOs (and other types of 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. Page 5 of 7 Persons reporting any of the above occurrences shall file a spill report by completing Part I of Form CS- SSO (or the most current Division approved form), within five business days following first knowledge of the occurrence This report shall outline the actions taken or proposed to ensure that the problem does not recur [G S. 143-215.1C(a1)] 3 The Permittee shall meetthe annual reporting and notification requirements provided in North Carolina General Statute §143-215.1C V. INSPECTIONS The Permittee or the Permittee's designee shall inspect the wastewater collection system regularly to reduce the risk of malfunctions and deterioration, operator errors, and other issues that may cause or lead to the release of wastes to the environment, threaten human health or create nuisance conditions. The Permittee shall keep an inspection log or summary including, at a minimum, the date and time of inspection, observations made, and any maintenance, repairs, or corrective actions taken by the Permittee. [15A NCAC 02T 0108 (b)] Pump stations that are not connected to a telemetry system (i e., remote alarm system) shall be inspected by the permittee or its representative everyday (i e , 365 days per year) Pump stations that are connected to telemetry shall be inspected at least once per week [15A NCAC 02T 0108 (b)] 3 A general observation by the permittee or its representative of the entire wastewater collection system shall be conducted at least once per year [15A NCAC 02T 0108 (b)] 4 Inspections of all high priority lines (i a aerial line, sub -waterway crossing, line contacting surface waters, siphon, line positioned parallel to stream banks that are subject to eroding in such a manner that may threaten the sewer line, or line designated as high -priority in a permit) shall be performed at least once per every six-month period of time A list of high -priority lines is presented as Attachment A and is hereby incorporated into this permit condition New high priority lines installed or identified after permit issuance are incorporated by reference and subject to this permit condition until permit renewal where they shall be referenced in writing in Attachment A [15A NCAC 02T 0108 (b)] VI. GENERAL CONDITIONS 1 This permit is not transferable. In the event that the Permittee desires to transfer ownership of the wastewater collection system or there is a name change of the Permittee, a formal permit modification request shall be submitted to the Division The request shall be accompanied by documentation from the parties involved, and other supporting materials as may be appropriate. Such request will be considered on its merits and may or may not be approved [15A NCAC 02T 0104, G S 143-215 1(d)(3)] 2 Failure to abide by the conditions and limitations contained in this permit may subject the Permittee to an enforcement action by the Division in accordance with North Carolina General Statute §143-215 6A through §143-215 6C, and a sewer moratorium may be established [15A NCAC 02T 0104] 3. The issuance of this permit does not exempt the Permittee from complying with any and all statutes, rules, regulations, or ordinances that may be imposed by other government agencies (i.e , local, state, and federal) having jurisdiction. [G.S. 143-215 1(b)] 4 The issuance of this permit does not prohibit the Division from reopening and modifying the permit, revoking and reissuing the permit or terminating the permit as allowed by the laws, rules, and regulations or as needed to address changes in federal regulations with respect to the wastewater collection system, in accordance with required procedures [G S. 143-215.1(b)(4)] Page 6 of 7 5 The Permittee shall pay the annual fee within thirty (30) days after being billed by the Division Failure to pay the fee accordingly may cause the Division to initiate action to revoke this permit [15A NCAC 02T .0110 (4)] 6 The Permittee shall file an application for renewal of this permit at least six months prior to the expiration of this permit Upon receipt of the request, the Director will review the adequacy of the wastewater collection system described therein, and if warranted, will extend the permit for a period of time and under such conditions and limitations, as the Director may deem appropriate [15A NCAC 02T .01091 7. The Permittee shall notify the Division's Pretreatment, Emergency Response and Collection Systems Unit in writing at 1617 Mail Service Center, Raleigh, North Carolina 27699 of any changes to the name and/or address of the responsible party (i.e. mayor, city/town manager) of the wastewater collection system [15A NCAC 02T 0106 (c)] Any duly authorized officer, employee, or representative of the Division may, upon presentation of credentials, enter and inspect any property, premises or place on or related to the collection system at any reasonable time for the purpose of determining compliance with this permit, may inspect or copy any records that must be maintained under the terms and conditions of this permit, and may obtain samples of wastewater, groundwater, surface water, soil, or plant tissue [15A NCAC 02T .0110 (3)] 9 The Permittee or their authorized representative shall have available a copy of this permit to present upon request by any duly authorized officer, employee, or representative of the Division [15A NCAC 02T ,0104] VII. SPECIAL CONDITION 1 This permit shall become voidable unless the agreement between the City of Southport and the West Brunswick WWTF (WQ0023693) for the collection and final treatment of wastewater is in full force and effect. [15A NCAC 02T 0108 (b); 15A NCAC 02T 0304 (h)] Permit issued this the 2611 of March, 2018 NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION QAr6lt-4 Ao-L� for Linda Culpepper Interim Director, Division of Water Resources By Authority of the Environmental Management Commission by Deborah Gore, Pretreatment, Emergency Response, Collection System Unit Supervisor Division of Water Resources, NCDEQ Page 7 of 7 ;r 4 C rQca E CL s F- Q a a " m a 0. CL CL c4;N C7 t 0 J a c cn E a ., � i y yy `a o I c J I i L VI;vs 0 w All ev _ CL° a' 4*1 l* T U E n- a n a a 5 a E aIL CL v cc Q. U H Q. a .! _ O p E 0° � 0 C6 4 lini N Gy a 4 2 '� � �] U ✓" O 2 V U 5 0 � Q aEi m J E Ei p E E a o L co cn CL R 0 o. .o CL CL , a 0 et 'm E a U � 2� a a y a. 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