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HomeMy WebLinkAboutWQ0043941_Application (FTSE)_20221102DWR Division of Water Resources NC Dept of Environmental Quality State of North Carolina Department of Environmental Quality Division of Water Resources NOV 2 20 L4'AST TRACK SEWER SYSTEM EXTENSION APPLICATION FTA 06-21 & SUPPORTING DOCUMENTATION Application Number pp tf 39 Ili (to be completed by DWR) All items must be completed or the application will be returned I. APPLICANT INFORMATION: I. Applicant's name: City of Mebane (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: Chris Rollins per I5A r C:AC 02T .01061b) Title: City Manager 4. Applicant's mailing address: 106 E. Washington Street City: Mebane State: NC Zip: 27302 5. Applicant's contact information: Phone number: (919) 563-5901 Email Address: crollinsacitvofinebane.com II. PROJECT INFORMATION: I. Project name: Meadowstone Townhomes 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: Orange County 4. Approximate Coordinates (Decimal Degrees): Latitude: 36.068071 Longitude: -79.255144 5. Parcel ID (if applicable): 9824-43-4841, 9824-43-5349, 9824-43-5147 (or Parcel ID to closest downstream sewer) III. CONSULTANT INFORMATION: 1. Professional Engineer: William R. Wirt License Number: 052574 Firm: Summit Design and Engineering Services Mailing address: 320 Executive Court City: Hillsborough State: NC Zip: 27278 Phone number: (919) 732-3883 Email Address: william.wirt@summitde.com IV. WASTEWATER TREATMENT FACILITY (WWTF) INFORMATION: 1. Facility Name: City of Mebane Water Resource Recovery Facility Permit Number: NC0021474 Owner Name: City of Mebane V. RECEIVING DOWNSTREAM SEWER INFORMATION: 1. Permit Number(s): WQ 2. Downstream (Receiving) Sewer Information: 18 inch ® Gravity ' Force Main 3. System Wide Collection System Permit Number(s) (if applicable): WQCS00081 Owner Name(s): City of Mebane FORM: FTA 06-21 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? El Yes No ®N/A 2. If the Applicant is a Developer of lots to be sold, has a feveloper's Operati❑nal Agreement (FORM: DEV1 been attached? ❑ Yes ❑ No ® N,'A 3. If the Applicant is a Home/Property Owners' Association, has an HOA•POA Operational Agreement (FORM: HOA) and supplementary documentation as required by I5A NCAC 02T.0115(c) been attached? ❑Yes El No ®NIA 4. Origin of wastewater: (check all that apply): ® Residential (Individually Owned) ® Residential (Leased) ❑ School / preschool / day care ❑ Food and drink facilities ❑ Businesses / offices / factories ❑ Retail (stores, centers, malls) ❑ Retail with food preparation/service ❑ Medical.. dental! veterinary facilities ❑ Church ❑ Nursing Home ❑ Car Wash ❑ Hotel and/or Motels ❑ Swimming Pool/Clubhouse ❑ Swimming Pool/Filter Backwash ❑ Other (Explain in Attachment) 5. Nature of wastewater : 100 % Domestic 0 % Commercial 0 % Industrial (See 15A NCAC 02T .(f103(20)) If Industrial, is there a Pretreatment Program in effect? ❑ Yes 6. Has a flow reduction been approved under 15A NCAC 02T .0114( ft? ❑ Yes ® No > If ves, provide a copy of flow reduction approval letter with this application 7. Summarize wastewater generated by project: ❑ No Establishment Type (see 02T.0114(0) Daily Design Flow " No. of Units Flow 3-bedroom townhomes@80gpolbedroom 240 gal/day 106 25,440 GPD gall GPD gal' GPD gal/ GPD gal/ GPD gal/ GPD Total — 25,440 GPD a See I.SA NCAC 02T _01 [4th i& Lett LI and (e f2) 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 .01 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: 25,440 GPD (per I5A 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 (1f Applicable) - 02T .0305 & MDC (Gravity Sewers): 1. Summarize gravity sewer to be permitted: Size (inches) Length (feet) Material 8" 2,093 LF PVC 8" 1,205 LF DIP > Section 11 & I1I 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: Longitude: - 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 me hod 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 02 .0305ti: ❑ Standby power source or 0 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 & ISA NCAC 02T .0305(f)): 1. Does the project comply with all separations/alternatives found in 15A NQAC {12T .0305{f) & (g)? I5A NCAC 02T.0305(i) contains minimum separations that shall be provided for sewer systems: ® Yes ❑ No 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 '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-I waters of Class 1 or Class II 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 (.0, see Section X.1 of this application *I 5A 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 NCAErface Water Classilicatir n . wcbpagc 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? ➢ Please provide supplementary information identifying the areas of non-conformance. ➢ See the Division's draft separation requirementg 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: Cape Fear If yes, does the project comply with setbacks found in the river basin rules per 15A NCAC 02B .0200? > This includes Trout Buffered Streams per,#5A, NCAC 2B.0202 5. Does the project require coverage/authorization under a 404 Nationwide/individual permits or 401 Water Quality Certifications? > Please provide the permit number/permitting status in the cover letter if coverage/authorization is requi ® Yes ❑ No ❑ N,'A ❑ No ® Yes ❑ No ❑ Yes ® No red. 6. Does project comply with 15A NCAC 00 ] 05(c)(6) (additional permits/certifications)? ❑ Yes ® No Per. A.NCAC 02T,01054c)(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 Fi C 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 I5A NCAC 02T, the Minimum Desirtn Criteria for the Permitting of Pump Stations and Force Mains (]arcs[ vcrsionJ, and the Gravity Sewer Minimum Deign Criteria (latest version) as applicable? ®Yes El 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 project, the full technical review is required. 2. Professional Engineer's Certification: 1, V 3V1Aw \N ► o---1 , attest that this application for !kilt -tw 'y10 t-1�—ToW1410 Ni t (Professional Engineer's name from Application Item III I.) (Project Name from Application Item 11.1) 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 'ers latest vc.piott), and the Minimum Design Criteria for the Fast -Track Permitting of Pump Static and Force Mains flag t_yersipn . 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 I43-215.6B, 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. 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 56.0701) North Carolina Professional Engineer's seal, signature, and date: 3. Applicant's Certification per 15A NCAC 02T _0106(b): n '}} <Iq M R x\�� �r+'�ii l� iiy55kk I, Chris Rollins, City Manager , attest that this application for Meadowstone Townhomes (Signature Authority Name from Application Item 13.) (Project Name from Application Item II t) 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. Signature: Mak, Date 02-70 FORM: FTA 06-21 Page 5 of 5 NC Dept of Environmental Quality Division of Water Resources NOV 2 20?2 State of North Carolina Department of Environmental Quality Division of Water Resources Flow Tracking for Sewer Extension Applications Raleigh Regional Office (FTSE 10-18) Entity Requesting Allocation: City of Mebane Project Name for which flow is being requested: Meadowstone Townhomes More than one FTSE may be required for a single project if the owner of the WWTP is not responsible for alpump 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 Mebane Water Resource Recovery Facility b. WWTP Facility Permit #: NC0021474 All flows are in MGD c. WWTP facility's permitted flow 2.500 d. Estimated obligated flow not yet tributary to the WWTP 0.287 e. WWTP facility's actual avg. flow 1.594 f. Total flow for this specific request 0.025 g. Total actual and obligated flows to the facility 1.907 h. Percent of permitted flow used 76% 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, Pump Pump Daily Current Not Yet Total Current Station Station Firm Flow** Avg. Daily Tributary Flow Plus (Name or Permit Capacity, * (Firm / pf), Flow, Daily Flow, Obligated Available Number) No. MGD MGD MGD MGD Flow Capacity*** SE Regnl WQ0031329 2.505 1.002 0.219 0.115 0.335 0.668 * 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 Tess 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 < O. Downstream Facility Name (Sewer): City of Mebane Downstream Permit Number: Page 1 of 6 FTSE 10-18 III, Certification Statement: I Chris Rollins 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. 7JLJlz SigniOfficial Signature Date L;a \NI \\' 3,k( Title of Signing fcial Page 2 of 6 FTSE 10- l 8 PLANNING ASSESSMENT ADDENDUM (PAA) Submit a planning assessment addendum for each pump station listed in Section II where Available Capacity is a. Pump Station (Name or Number): Given that: a. The proportion and amount of Obligated, Not Yet Tributary Daily Flow (C) accounts for % and MGD of the Available Capacity (E) in Pump Station ; and that b. The rate of activation of this obligated, not yet tributary capacity is currently approximately MGD per year; and that c. A funded Capital Project that will provide the required planned capacity, namely is in design or under construction with planned completion in ; and/or d. The following applies: 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 Page 3 of 6 (efQ7/za Date FTSE 10-18 NC Dept of Environmental Quality 111111111 SUMMITNOV 2 2022 DESIGN AND ENGINEERING SERVICES Phone 1/ 919.132.3883 Web // www.summitde.net Raleigh Regional Office Cover Letter 320 Executive Court, Hillsborough, NC 21218 Project: Meadowstone Townhomes — Phase I September 14, 2022 SDE Project #: 20-0089 Information Provided by: William Wirt, PE Contents: Cover Letter, wastewater flow calculations and project narrative, Division of Water Resources Fast Track Sewer System Extension application and attachments. Project Narrative: Meadowstone Townhomes consists of 147 townhome units (3 bedrooms each) and associated, utilities, open space and sidewalks on 25.58 acres of land. The units are distributed in "blocks" with 3-6 unit per block. The site is located on Ben Wilson Road in Mebane, North Carolina and identified with Orange County Parcel PIN # 9824-43-4841, 9824-43-5349, and 9824-43-5147. The development of this site will require a public sewer extension to connect to the City of Mebane sewer system. The gravity sewer extension will consist of 23 new manholes, 2,093 LF of 8" SDR-35 PVC pipe and 1,205 LF of 8" Class 50 DIP. The new sewer mains will connect to two existing City of Mebane sewer manholes, Phase I sewer will connect to a manhole along an unnamed tributary of Haw Creek on the property, Phase II sewer will connect to a manhole in a subdivision on the opposite side of Ben Wilson Road. Wastewater Flows (Phase 1): 106 3-bedroom @ 80gpd/bedroom/day with a 240* gpd min. * See Attached Flow Reduction for the City of Mebane 106 units x 240 gal/bdrm/day (min. flow) = 25,440 gpd Items included with this submittal: (one original and one copy) • Cover Letter • Fast Track Form and $480 fee check • Flow Tracking Form • Site Maps (USGS and Google Street Map) • Flow Reduction Letter An‘ NCDENR Nov 2 ?O2 North Carolina Department of Environment and Natural Resources Division of Water Quality Raleigh Regional Office Beverly Eaves Perdue Coleen H. Sullins Dee-FFreeman Governor Director Secretary March 15, 2011 Robert L. Wilson City Manager City of Mebane 106 East Washington Street Mebane, NC 27302 Subject: Mebane WWTP (NC0021474) Flow Reduction Request Alamance County Dear Mr. Wilson: NC Dept of Environmental Quali On February 14, 2011, the Pretreatment, Emergency Response and Collection System (PERCS) Unit of the Division of Water Quality received a flow reduction request for connections to the City of Mebane WWTP. The letter requests an allowable Clow rate of 80 gallons per day (gpd) per bedroom based on the evaluated data. As daily WWTP data is not representative of the project area, the DMR data from the City of Mebane WWTP (NC0021474) from January 2009 through December 2009 was evaluated to determine the peak sewage month. The highest flow month was December 2009. Daily wastewater flows were recorded downstream of the Holly Ridge Subdivision during December 2010. This data was reviewed by PERCS and Regional Office staff. Based on the data, the Division hereby grants a reduction in flow to 80 gpd/bedroom (minimum of 160 gpd for 1 and 2 bedroom residences) for sewer extension permits issued tributary to the City of Mebane WWTP. Regardless of the adjusted design daily wastewater flow rate, at no time shall the wastewater flows exceed the effluent limits defined in the NPDES permit for the treatment facility or exceed the capacity of the sewers downstream of any new sewer extension or service connection(s). If you have any questions or comments regarding this matter, please contact Sarah Morrison at (919) 807-6310, or email [Sarah.Morrison@ncdenr.gov] or Deborah Gore, Unit Supervisor at (919) 807-6383, or email [Deborah.Gore@ncdenr.gov]. Coleen H. Sullins cc: Darrell L. Russell, P.E., Alley, Williams, Carmen & King, Inc. (via email: drussell@awck.com) Steve Mauney, Winston-Salem Regional Office (via email) NPDES Unit, Permit File NC0021474 PERCS Flow Reduction File 1617 Mail Service Center, Ralegh, North Carolina 27699-1617 Location: 512 N. Salisbury SI. Raleigh. North Carolina 27604 Phone: 919407-63001 FAX: 919-807-6492 PERCS Unit FAX: 919-807-64891 Customer Service: 1.877-623.6748 Internet: httOloorgl.nCeenr.prp+MreWWo! PERCS Unit: ntto:flportarncoenr.onyrre two/awolve/Dret An Equal Opportunity 1 Affirmative Action Employer NoetthCaroiina attire!' 1r SUMMIT DESIGN AND ENGINEERING SERVICES LETTER OF TRANSMITTAL TO: NCDEQ - Division of Water Sources 3800 Barrett Drive Raleigh NC 27609 ATTN: Jason T. Robinson, P.E. WE ARE SENDING YOU IX1 Prints iXi Copy of Letter iXi Attached COPIES 1 1 DATE: 10/28/2022 NC Dept of Environmental Quality NOV 2 2E2 Raleigh Regional Office PROM. NO.: 20-0089 RE: Meadowstone Townhomes - Fast Track Application Reproducible ❑ Specifications Other Change Order ❑ Shop Drawings Under Separate Cover ❑ Transmitted Via DRAWING DATE T DESCRIPTION ,. N/A 9/14/2022 1 Cover Letter N/A 6/27/2022 Fast Track Form & Fee Check 1 N/A 7/21/2022 Flow Tracking Form (FTSE) 1 1 TRANSMITTED X For Approval COMMENTS: COPY TO: N/A Site Maps (USGS & Google Street) N/A 3/15/2011 1 Flow Reduction Request Letter As Requested For Your Use For Review and Comment SIGNATURE: William R. Wirt, P.E. Headquarters Office 320 Executive Court, Hillsborough, NC 27278 919.732.3883 11 www.summitde.com