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HomeMy WebLinkAboutWQ0044233_Application (FTSE)_20230316Vo- ZU13 State of North Carolina Department of Environmental Quality DWR Division of Water Resources FAST TRACK SEWER SYSTEM EXTENSION APPLICATION Division of Water Resources FTA 06-21 & SUPPORTING DOCUMENTATION Application Number: (to be completed by DWR) All items must be completed or the application will be returned I. APPLICANT INFORMATION: 1. Applicant's name: City of Trinity (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: Stevie Cox per 15A NCAC 02T .0106(b) Title: City Manager 4. Applicant's mailing address: PO Box 50 City: Trini1y State: NC Zip: 27370- 5. Applicant's contact information: Phone number: (336) 431-2841 Email Address: citymanager@trinity-nc.gov II. PROJECT INFORMATION: l . Project name: Rockford Drive Subdivision 2. Application/Project status: ® Proposed (New Permit) ❑ Existing Permit/Project If a modification, provide the existing permit number: WQ00 and issued date: , 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: Randolph 4. Approximate Coordinates (Decimal Degrees): Latitude: 35.901537' Longitude:-79.991740' 5. Parcel ID (if applicable): 7708547619 (or Parcel ID to closest downstream sewer) III. CONSULTANT INFORMATION: 1. Professional Engineer: H. Mack Summe, Jr. PE License Number: 26447 Firm: Summey Engineering Associates, PLLC Mailing address: PO Box 968 City: Asheboro State: NC Zip: 27204-1106 Phone number: (336) 328-0902 Email Address: mack@summeyen ing eering.com IV. WASTEWATER TREATMENT FACILITY (WWTF) INFORMATION: 1. Facility Name: Hamby Creek WWTP Permit Number: NCO024112 Owner Name: City of Thomasville V. RECEIVING DOWNSTREAM SEWER INFORMATION: 1. Permit Number(s): WQ0035225 2. Downstream (Receiving) Sewer Information: 8 inch Z Gravity ❑ Force Main 3. System Wide Collection System Permit Number(s) (if applicable): WQCS Owner Name(s): City of Trinity FORM: FTA 06-21 Page 1 of 5 V1. GENERAL REQUIREMENTS I . If the Applicant is a Privately -Owned Public Utility, has a Certificate of Public Convenience and Necessity been attached? ❑ Yes ❑ No ® N/A 2. If the Applicant is a Developer of lots to be sold, has a Developer's Operational Agreement (FORM: DEV) been attached? ❑ Yes [—]No ® N/A 3. If the Applicant is a Home/Property Owners' Association, has an HOA/POA Operational Aareement (FORM: HOA) and supplementary documentation as required by 15A NCAC 02T.0I 15(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: 100 % Domestic 0 % Commercial 0 % Industrial (See 15A NCAC 02T .0103(20)) If Industrial, is there a Pretreatment Program in effect? ❑ Yes ❑ No 6. Has a flow reduction been approved under 15A NCAC 02T .0114(t)? ❑ 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 Single Family Residential 360 gal/day 20 7200 GPD gal/ GPD gal/ GPD gal/ GPD gal/ GPD gal/ GPD Total 7200 GPD a See 15A NCAC 02T .01 14(b), (d), (e)(I) and (e)(2) for caveats to wastewater design flow rates (i.e., minimum flow per dwelling; 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 .0114(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: 1440 GPD (per 15A NCAC 02T .0114) ➢ 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 information indicating the approximate timeframe for permitting upstream sewers with flow. ❑ Flow has already been allocated in Permit Number: Issuance Date: ❑ Rehabilitation or replacement of existing sewers with no new flow expected ❑ Other (Explain): FORM: FTA 06-21 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 1483 PVC 8 131 DIP ➢ Section II & III of the MDC for Permitting of Gravity Sewers contains information related to design criteria ➢ Section III contains information 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 1. Pump station number or name: 2. Approximate Coordinates (Decimal Degrees): Latitude: 0Longitude: - 3. Total number of pumps at the pump 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 15A 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 06-21 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) & (g)? ❑ Yes ❑ No 15A NCAC 02T.0305(f) contains minimum separations that shall be provided for sewers stems: Setback Parameter* Separation Required Storm sewers and other utilities not listed below (vertical) 18 inches 'Water mains (vertical - water over sewer preferred, including in benched trenches) 18 inches 2Water 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-I 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-I 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 (Q), see Section X.l 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 webpaU 2. Does this project comply with the minimum separation requirements for water mains? ® Yes ❑ No ❑ N/A ➢ 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-conformance. ➢ 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, stormwater 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 permittee 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 06-21 Page 4 of 5 X. CERTIFICATIONS: 1. Does the submitted system comply with 15A NCAC 02T, the Minimum Design Criteria for the Permitting of Pump 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 projects requiring two or more variances or where the variance is determined by the Division to be a significant portion of the proiect, the full technical review is required. 2. Professional Engineer's Certification: I, H. Mack Summe. Jr. PE , attest that this application for Rockford Drive Subdivision (Professional Engineer's name from Application Item III.1.) (Project Name from Application Item II.I ) 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 version) 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 143-215.613, 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. Misrepresentation of the application information, including failure to disclose any design non-compliance with the applicable Rules and design criteria, may subject the North Carolina -licensed Professional Engineer to referral to the licensing board. (21 NCAC 5P,0701) AIlk North Carolina Professional Engineer's seal, signature, and date: P VWZAP-0 t:AL ' 2644® y ' " � e p e �UMN�..����� Applicant's Certification per 15A NCAC 02T .0106(b): 1, _Stevie Cox, City Manager , attest that this application for _Rockford Drive Subdivision (Signature Authority Name from Application Item I.3.) (Project Name from Application Item 11.1) 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. l Signature: 1.C.t,¢.R, Date: -c,�Vl t AL FORM: FTA 06-21 Page 5 of 5 State of North Carolina Department of Environmental Quality Division of Water Resources Flow Tracking for Sewer Extension Applications (FTSE 10-18) Entity Requesting Allocation: City of Trinity Project Name for which flow is being requested: Covington Ridge Phase 1B More than one FTSE inay be required for a single project if the owner of the WWTP is not responsible for all pump stations along the route of the proposed wastewater flow. I. Complete this section only if you are the owner of the wastewater treatment plant. a. WWTP Facility Name: City of Thomasville Hamby Creek WWTP b. WWTP Facility Permit #: NCO024112 c. WWTP facility's permitted flow d. Estimated obligated flow not yet tributary to the WWTP e. WWTP facility's actual avg. flow f. Total flow for this specific request g. Total actual and obligated flows to the facility h Aarront of r�armittart flncv ncarl All flows are in MGD 6.0 0.9492 2.28 0.02736 3.25656 SA 77ra/ II. Complete this section for each pump station you are responsible for along the route of this proposed wastewater flow. List pump stations located between the project connection point and the WWTP: (A) (B) Design Pump Pump Average Approx. Station Station Firm Daily Flow** Current (Name or Permit Capacity, * (Firm / po, Avg. Daily Number) No. MGD MGD Flow, MGD (C) (D)=(B+C) (E)=(A-D) Obligated, Not Yet Total Current Tributary Flow Plus Daily Flow, Obligated Available MGD Flow Capacity**" * The Firm Capacity (design flow) of any pump station is defined as the maximum pumped flow that can be achieved with the largest pump taken out of service. ** Design Average Daily Flow is the firm capacity of the pump station divided by a peaking factor (pf) not less than 2.5, per Section 2.02(A)(4)(c) of the Minimum Design Criteria. ** A Planning Assessment Addendum shall be attached for each pump station located between the project connection point and the WWTP where the Available Capacity is < 0. Downstream Facility Name (Sewer): Stone Gables (Trinity Sewer) Downstream Pern-dt Number: Page 1 of 6 FTSE 10-18 III. Certification Statement: I Morgan Huffman certify to the best of my knowledge that the addition of the volume of wastewater to be permitted in this project has been evaluated along the route to the receiving wastewater treatment facility and that the flow from this project is not anticipated to cause any capacity related sanitary sewer overflows or overburden any downstream pump station en route to the receiving treatment plant under normal circumstances, given the implementation of the planned improvements identified in the planning assessment where applicable. This analysis has been performed in accordance with local established policies and procedures using the best available data. This certification applies to those items listed above in Sections I and II plus all attached planning assessment addendums for which I am the responsible party. Signature of this form certifies that the receiving collection system or treatment works has adequate capacity to transport and treat the proposed new wastewater. Title of Signing Official Page 2of6 FTSE 10-18 State of North Carolina Department of Environmental Quality Division of Water Resources Flow Tracking for Sewer Extension Applications (FTSE 10-18) Entity Requesting Allocation: City of Trinity Project Name for which flow is being requested: Rockford Drive Subdivision More than one FTSE may be required for a single project if the owner of the WWTP is not responsible for all pump stations along the route o f the proposed wastewater, flow. 1. Complete this section only if you are the owner of the wastewater treatment plant. a. WWTP Facility Name: Treated by Thomasville, separate FTSE to be submitted b. WWTP Facility Permit #: NCO024112 All flows are in MGD c. WWTP facility's permitted flow d. Estimated obligated flow not yet tributary to the WWTP e. WWTP facility's actual avg. flow f. Total flow for this specific request 0.0072 g. Total actual and obligated flows to the facility h. Percent of permitted flow used II. Complete this section for each pump station you are responsible for along the route of this proposed wastewater flow. List pump stations located between the project connection point and the WWTP: (A) (B) (C) (D)=(B+C) (E)=(A-D) Design Average Approx. Obligated, Total Pump Daily Current Not Yet Current Flow Pump Station Station Firm Flow** Avg, Daily Tributary Plus (Name or Permit Capacity, * (Firm / pt), Flow, Daily Flow, Obligated Available Number) No. MGD MGD MGD MGD Flow Capacity*** Morgan 1.152 0.4608 0.1008 0.0875 0.1883 0.2725 Twinwood 1.296 0.5184 0.110 0.1105 0.2205 0.2979 Steeplegate .0.72 0.288 0.1983 0.201 0.3993 -0.1113 * The Firm Capacity (design flow) of any pump station is defined as the maximum pumped flow that can be achieved with the largest pump taken out of service. ** Design Average Daily Flow is the firm capacity of the pump station divided by a peaking factor (pf) not less than 2.5, per Section 2.02(A)(4)(c) of the Minimum Design Criteria. *** A Planning Assessment Addendum shall be attached for each pump station located between the project connection point and the WWTP where the Available Capacity is < 0. Downstream Facility Name (Sewer): City of Trinity Downstream Permit Number: WQ0035225 Page 1 of 6 FTSE 10-18 III. Certification Statement: I Stevie Cox certify to the best of my knowledge that the addition of the volume of wastewater to be permitted in this project has been evaluated along the route to the receiving wastewater treatment facility and that the flow from this project is not anticipated to cause any capacity related sanitary sewer overflows or overburden any downstream pump station en route to the receiving treatment plant under normal circumstances, given the implementation of the planned improvements identified in the planning assessment where applicable. This analysis has been performed in accordance with local established policies and procedures using the best available data. This certification applies to those items listed above in Sections I and II plus all attached planning assessment addendums for which I am the responsible party. Signature of this form certifies that the receiving collection system or treatment works has adequate capacity to transport and treat the proposed new wastewater. Signing Official Signature Title 10.0,1) .2 Date Page 2 of 6 FTSE 10-18 PLANNING ASSESSMENT ADDENDUM (PAA) Submit a planning assessment addendum for each pump station listed in Section iI where Available Capacity is < 0. Pump Station (Name or Number): Given that: a. The proportion and amount of Obligated, Not Yet Tributary Daily Flow (C) accounts for 69.8 % and-0.1113 MGD of the Available Capacity (E) in Pump Station Steeplegate PS ; and that b. The rate of activation of this obligated, not yet tributary capacity is currently approximately 0A5 avg per yr MGD per year; and that c. A funded Capital Project that will provide the required planned capacity, namely Steeplegate PS capacity expansion is in design or under construction with planned completion in end 2024 ; and/or d. The following applies: The overall project based obligations not built result in -0.1 113 mgd below the caculated available flow for the Steeplegate PS, includes flows from homes that will be built out over the next 3 years that will range from 0.011 mgd in 2022, .057 mgd in 2023, and 0.051 mgd in 2024. During the same period homes will be constructed reducing the obligated flow since only 5000 gal per month adf (or only 170 gpd ) vs the oblicated calculation base on 360 gal per bedroom The exisitng ADF for each PS is based on 5 months of historical SCADA records SCADA is not available for a few months in mid 2022 Therefore: Given reasonably expected conditions and planning information, there is sufficient justification to allow this flow to be permitted, without a significant likelihood of over -allocating capacity in the system infrastructure. I understand that this does not relieve the collection system owner from complying with G.S. 143- 215.67(a) which prohibits the introduction of any waste in excess of the capacity of the waste disposal system. Signing Official Signature ­OK(e"'L.; A, nc)�L 2 Date Page 3 of 6 FTSE 10-18 f w ry w Q) CO =0 CL Rockford Dr LU Date: March 15, 2023 To Summey Engineering Associates I ILO o of tQuy Engineering • Land Planning • Consulting Received PO Box 968 — Asheboro, NC 27204 map 16 anaq (336) 328-0902 / Fax: (336) 328-0922 / Mack@summeyengi%pring.com inston TRANSMITTAL Regio,,,_. Jenny Graznak NCDEQ-DWR 450 West Hanes Mill Road, Suite 300 Winston-Salem, NC 27105 We are sending you attached the following items: ❑ Shop Drawings ❑ Samples ❑ Prints ❑ Specifications ® Plans ❑ Disk Rockford Subdivision Ph.1 Davidson County, NC Sanitary Sewer Extension Sea Job No. E-8140 ❑ Copy of Letter ❑ Other # Copies I Drawing #7 Description Disposition 1 $480.00 Application Fee 1 Cover Letter 2 Fast Track Sewer Application (1 original & 1 copy) 2 Flow Tracking Acceptance Form (1 original & 1 copy) 1 USGS Topo Map 1 Aerial Photo Remarks Jenny, We have enclosed the information for your review. Please let us know if you have any questions, concerns or need any additional information from us. Thank you, Christian Vestal Christian(d-)summeyengineering.com 336-328-0902 NC �E Environmental Quality Received NC Departmena ��� 6 �n� nvironmental quality Project Narrative Received For Winston-Salem The City of Trinity Regional Office 8" Sewer Line Extension For the r; - - Rockford Drive Subdivision Ph. 1 The purpose of this sewer line extension is to provide a new residential subdivision with 38 total lots but only 20 current lots within phase one with an adequate sewage disposal source and to meet the future needs of these residents. This submission is for a complete certification of phase 1 design. The new subdivision is located on Rockford Drive 2500 ft north of Intersection of Mendenhall Rd extension and Rockford Drive. The sewer service will be connected to an existing 8" Sanitary Sewer flowing back to Mendenhall Rd Extension. The City of Trinity/ Thomasville wastewater treatment Systems have the capacity to serve this new development and many other residences. The only other alternative for this development would be individual septic systems on each lot which would not be economically feasible or desirable due to bad soil conditions when compared to the advantages provided by this proposed extension. Prepared By: H. Mack Summey, Jr., PE Address: P.O. Box 968 Asheboro, NC 27204 Phone: (336)-328-0902 Project: Rockford Drive Subdivision Ph. 1