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HomeMy WebLinkAboutWQ0041958_Application (FTSE)_20200930Permit Number WQ0041958 Program Category Non -discharge Permit Type Gravity Sewer Extension, Pump Stations, & Pressure Sewer Extensions Primary Reviewer dean.hunkele Coastal SWRuIe Permitted Flow Facility Central Files: APS _ SWP _ 9/10/2020 Permit Tracking Slip Status Project Type In review New Project Version Permit Classification A Individual Permit Contact Affiliation Facility Name Major/Minor Region Sanctuary at Angels Trace Minor Wilmington Location Address County Brunswick Facility Contact Affiliation Owner Owner Name Owner Type Brunswick County Government - County Owner Affiliation John Nichols PE PO Box 249 Dates/Events Bolivia NC 2842202, Scheduled Ong Issue App Received Draft Initiated Issuance Public Notice Issue Effective Expiration 9/10/2020 Regulated Activities Requested /Received Events Additional information requested Jam_ ( Gt 3Q zo PARAMOUNTE E N G I N E E R I N G. 1 N C. 1 22 CINEMA DRI V E ,� .....- ... R—,^... W I L M I N G T O N, N C 2 8 4 0 3 9 1 0- 7 9 1- 6 7 0 7( O) 9 1 0- 7 9 1- 6 7 6 0 SEP 10 2020 L E T T E R O F T R A N S M I T T A --'— .- - -- To: I NCDE Date oto 9/ / e are sendin E]Originals ® Prints ElShop Drawings ® Calculations rf he followingEl Correspondence ® Plans ® Specifications ® Other as listed below Quantity Date Dw . No. Description 2 09/O1/20 Design Narrative 2 09/10/20 Sewer Layout Overview 1 CD with application materials 2 FTSE 2 F1'A 2 08/21 /20 County Approval Letter 1 09/02/20 $480 Check Isatie Status: ® For approval [:1As Requested ❑ Construction ❑ Bid ❑ For Your Use ❑ For Review and Comment ElApproved as Noted ❑ See Remarks ction Taken: [:1No Exceptions Taken E]Make Corrections Noted E] .Amend & Resubmit ❑ Rejected - See Remarks ElApproved as Submitted ❑ Other Remarks: Cc: Find attached materials for the Sanctuary at Angels Trace Fast Track Sewer Application. Thank vou, Signed: E.J. Gwin, El Quantity Date Dw . No. Description 2 09/O1/20 Design Narrative 2 09/10/20 Sewer Layout Overview 1 CD with application materials 2 FTSE 2 F1'A 2 08/21 /20 County Approval Letter 1 09/02/20 $480 Check Isatie Status: ® For approval [:1As Requested ❑ Construction ❑ Bid ❑ For Your Use ❑ For Review and Comment ElApproved as Noted ❑ See Remarks ction Taken: [:1No Exceptions Taken E]Make Corrections Noted E] .Amend & Resubmit ❑ Rejected - See Remarks ElApproved as Submitted ❑ Other Remarks: Cc: Find attached materials for the Sanctuary at Angels Trace Fast Track Sewer Application. Thank vou, Signed: E.J. Gwin, El Isatie Status: ® For approval [:1As Requested ❑ Construction ❑ Bid ❑ For Your Use ❑ For Review and Comment ElApproved as Noted ❑ See Remarks ction Taken: [:1No Exceptions Taken E]Make Corrections Noted E] .Amend & Resubmit ❑ Rejected - See Remarks ElApproved as Submitted ❑ Other Remarks: Cc: Find attached materials for the Sanctuary at Angels Trace Fast Track Sewer Application. Thank vou, Signed: E.J. Gwin, El State of North Carolina �, R Department of Environmental Quality Division of Water Resources 15A NCAC 02T .0300 — FAST TRACK SEWER SYSTEM EXTENSION APPLICATION Division of Water Resources FTA 04-16 & SUPPORTING DOCUMENTATION Application Number: f ((t 0640k 6O (to be completed by DWR) All items must be completed or the application will be returned I. APPLICANT INFORMATION: 1. Applicant's name: Brunswick County (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: William Pinnix per 15A NCAC 02T .0106(b) Title: Director of Engineering 4. Applicant's mailing address: P.O. Box 249, Bldg, I City: Bolivia State: NC Zip: 28422- 5. Applicant's contact information: Phone number: (910) 253-2500 Email Address: william.pinnix(a,brunswickcountync.gov II. PROJECT INFORMATION: 1. Project name: The Sanctuary at Angels Trace - Gravity Sewer 2. Application/Project status: ® Proposed (New Permit) ❑ Existing Permit/Project If a modification, provide the existing permit number: W000 and issued date: _ If new construction but part of a master plan, provide the existing permit number: W000_ 3. County where project is located: Brunswick 4. Approximate Coordinates (Decimal Degrees): Latitude: 33.899. Longitude:-78.493. 5. Parcel ID (if applicable): 2420000999 (or Parcel ID to closest downstream sewer) III. CONSULTANT INFORMATION: 1. Professional Engineer: Chris Millis Firm: Paramounte Engineering,Inc. Mailing address: 122 Cinema Drive City: Wilmington Phone number: (910) 791-6707 License Number: 036235 State: NC Zip: 28403- Email Address: cmillis&aramounte-eng.com IV. WASTEWATER TREATMENT FACILITY (WWTF) INFORMATION: 1. Facility Name: Sea Trail Permit Number: W00012748 Owner Name: Brunswick County V. RECEIVING DOWNSTREAM SEWER INFORMATION (if different than WWTF): 1. Permit Number(s): W00030692 Downstream (Receiving) Sewer Size: 8 inch System Wide Collection System Permit Number(s) (if applicable): WQCS00284 Owner Name(s): Brunswick County FORM: FTA 04-16 Page 1 of 5 VI. 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: DEVI been attached? ❑ Yes []No ®N/A 3. If the Applicant is a Home/Property Owners' Association, has an Operational Agreement (FORM: HOA) been attached? ❑ Yes ❑No ®N/A 4. Origin of wastewater: (check all that apply): ® Residential 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/Commercial % Commercial Industrial (See 15A NCAC 02T .0103(20)) "Is there a Pretreatment Program in effect? ❑ Yes ❑ No 6. Hasa flow reduction been approved under 15A NCAC 02T .0114(t)? ®Yes [:]No ➢ If Yes, provide a copy of flow reduction approval letter 7. Summarize wastewater generated by project: Establishment Type (see 021.01140 Daily Design Flow'-b No. of Units Flow Single Family (3-bdr) 210 gal/lot 134 28,140 GPD Clubhouse 5 gal/seat 70 350 GPD Pool 10 gal/person 100 1,000 GPD gaU GPD gal/ GPD gal/ GPD Total 29,490 GPD a See 15A NCAC 02T .01 14(b). (d), (e)(1) 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 I SA NCAC 02T.01141 shall be determined using available flow data, water using fixtures, occupancy or operation patterns, and other measured data. 8. Wastewater generated by project: 29490 GPD (per 15A NCAC 02T .0114) ➢ Do not include future flows or previously permitted allocations If permitted flow is zero, indicate why: ❑ Pump Station or Gravity Sewer where flow will be permitted in subsequent permits that connect to this line ❑ Flow has already been allocated in Permit Number: ❑ Rehabilitation or replacement of existing sewer with no new flow expected ❑ Other (Explain): FORM: FTA 04-16 Page 2 of 5 VIL GRAVITY SEWER DESIGN CRITERIA (If Applicable) - 02T .0305 & MDC (Gravity Sewersl: 1. Summarize gravity sewer to be permitted: Size (inches) Length (feet) Material 8 5,900 C-900 (DR-18) PVC ➢ 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 requirement is not allowed and a violation of the MDC VIII. PUMP STATION DESIGN CRITERIA (If Applicable) — 02T .0305 & MDC (Pump Stations/Force Mains): COMPLETE FOR EACH PUMP STATION INCLUDED IN THIS PROJECT 1. Pump station number or name: 2. Approximate Coordinates (Decimal Degrees): Latitude: Longitude: - 3. Design flow of the pump station: millions gallons per day (firm capacity) 4. Operational point(s) of the pump(s): gallons per minute at feet total dynamic head (TDH) 5. Summarize the force main to be permitted (for this Pump Station): Size (inches) Length (feet) Material 6. Power reliability in accordance with 15A NCAC 02T .0305(h)(1): ❑ Standby power source or pump with 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 Or if the pump station has an average daily flow less than 15,000 gallons per day: ❑ Portable power source with manual activation, quick -connection receptacle and telemetry - 15A NCAC 02T .0305(h)(1)(C) or ❑ Portable pumping unit with plugged emergency pump connection and telemetry - 15A NCAC 02T .0305(h)(l)(C): ➢ It shall be demonstrated to the Division that the portable source is owned or contracted by the applicant (draft agreement) and is compatible with the station. ➢ If the portable power source or pump is dedicated to multiple pump stations, an evaluation of all the pump stations' storage capacities and the rotation schedule of the portable power source or pump, including travel timeframes, shall be provided in the case of a multiple station power outage. FORM: FTA 04-16 Page 3 of 5 IX. SETBACKS & SEPARATIONS — (02B .0200 & 15A NCAC 02T .0305(f)): I. Does the project comply with all separations found in 15A NCAC 02T .0305(f) & (g) ➢ 15A NCAC 02T.0305(fl 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 24 inches Water mains vertical -water over sewer 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 I or Class II impounded reservoirs used as a source of drinking water 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 see item IX.2 50 feet **Any other stream, lake, impoundment, or ground water lowering and surface drainage ditches 10 feet Any building foundation 5 feet Any basement 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 ➢ 15A NCAC 02T.0305(g) contains alternatives where separations in 02T.0305(f) cannot be achieved. ➢ **Stream classifications can be identified using the Division's NC Surface Water Classifications webpaee ➢ If noncompliance with 02T.0305(fl or (a). see Section X of this application 2. Does the project comply with separation requirements for wetlands? (50 feet of separation) ® Yes ❑ No ➢ See the Division's draft separation requirements for situations where separation cannot be meet ➢ No variance is required if the alternative design criteria specified is utilized in design and construction ➢ As built documents should reference the location of areas effected 3. Does the project comply with all setbacks found in the river basin rules per 15A NCAC 02B .0200? ® Yes ❑ No ➢ This would include Trout Buffered Streams per 15A NCAC 2B.0202 4. Does the project comply with an individual 404 Permit or any 401 Certifications? ® Yes (—]No ➢ Wetland -related permits shall be requested, obtained, and adhered to for projects that impact wetlands or surface waters ➢ Information can be obtained from the 401 & Buffer PermittingBranch ranch 5. 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 are 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.). 6. Does this project include any sewer collection lines that are deemed "high -priority?" Per 15A NCAC 02T.0402, "high -priority sewer" means "any aerial sewer, sewer contacting surface waters, siphon, or sewer positioned parallel to streambanks that is subject to erosion that undermines or deteriorates the sewer. [-]Yes ® No ➢ 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 permitee's individual System -Wide Collection permit. FORM: FTA 04-16 Page 4 of 5 X. CERTIFICATIONS: 1. Does the submitted system comply with 15A NCAC 02T, the Minimum Design Criteria for the Permitting of Punip Stations and Force Mains (latest version), and the Gravity Sewer Minimum Design Criteria (latest version) as applicable? ® Yes ❑ No If No, complete and submit the Variance/Alternative Design Request application (VADC 10-14) and supporting documents for review. Approval of the reouest is required prior to submittal of the Fast Track Application and su000rtine documents 2. Professional Engineer's Certification: i Christopher Millis, PE attest that this application for (Professional Engineer's name from Application item 111.1.) The Sanctuary at Angels Trace - Gravity Sewer 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, Gravity Sewer 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 143-215.6B, 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. """"...... North Carolina Professional Engineer's seal, signature, and date: 3. Applicant's Certification per 15A NCAC 02T .0106(b): I William Pinnex, PE -,*b I Q P,y t' t" 'ErN 5 r,c (k j n� attest that this application for (Signature Authority's name & title from AplAication Item 1. . The Sanctuary at Angels Trace - Gravity Sewer 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 143-215.613, 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 tine not to'exceed $10,000 as well as civil penalties tip to $25,000 per violation. Signature: /v V" r — Date: D 2-0 V � _ FORM: FTA 04-16 Page 5 of 5 State of North Carolina Mdsion of Water Resources Department of Environmental Quality Division of Water Resources Flow Tracking for Sewer Extension Applications (FTSE 10-18) Entity Requesting Allocation: Brunswick County Public Utilities Project Name for which flow is being requested: Sanctuary na, Angels Trace (gravity) 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 of the proposed wastewater flow. I. Complete this section only if you are the owner of the wastewater treatment plant. a. WWTP Facility Name: SEA TRAIL WWTF b. WWTP Facility Permit #: WQ 0012748 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 g. Total actual and obligated flows to the facility h. Percent of permitted flow used 0.300 0.710 0.201 0.02949 0.940 313.33% 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*** Food WQ0013389 0.554 0.222 0.011 0.1037 0.1147 0.1073 * 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): Village Park Condominiums Downstream Permit Number: W00030692 Page 1 of 6 FTSE 10-18 III. Certification Statement: I William L. Pinnix, PE 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. Official Signature r Title of Signing Official Page 2 of 6 FTSE 10-18 TtlE SANCTUARY AT ANGELS TRACE BRUNSWICK COUNTY, NORTH CAROLINA TOWN OF SUNSET BEACH Gravity Sewer Design Narrative Prepared for: BILL CLARK HOMES, LLC 127 RACINE DRIVE, SUITE 201 WILMINGTON, NC 28403 Prepared by: -P A RAMOUNTE 122 Cinema Drive Wilmington, NC 28403 Project 919228.PE SEPTEMBER 2020 PROJECT NARRATIVE The Sanctuary at Angel Trace development is located in Brunswick County (Sunset Beach), NC. An approximate address of subject parcel is 1600 NC 179 in Sunset Beach. The latitude and longitude of the property are 31°53'10.3" N, 78°51'00.4" W. According to the latest FEMA flood panels, a minor area of this property is located within the flood plain (Zone AE; see attached FEMA Flood Map for information). According to USGS & NC Surface Water Classifications Website, the project drains to the Calabash River (15-25-13) which has a stream classification of SA; HQW and is within the Lumber River Basin. The Developer Bill Clark Homes plans to extend gravity sanitary sewer to serve all of the proposed development that can be served from an existing depth and proposed cover standpoint. The portions of the development that cannot be served by gravity sanitary sewer, the Developer is proposing to install a low-pressure sewer system to serve the remainder of the development. The initial phase of sanitary sewer infrastructure will serve 226 single family (3-bdr.) lots and an amenity area (Clubhouse/Pool) with a total proposed flow of 48,810 gpd. In the future, the development will include a later phase of approximately 137 single family (3-bdr.) lots that will be designed and permitted at a later date. The break down of what is proposed to flow to the gravity sanitary sewer extension is as follows: 134 single family (3-bdr.) lots and the Amenity area (total flow to gravity sewer = 29,490 gpd). The low-pressure sewer system will serve 92 single family (3-bdr.) lots and will discharge to the extended gravity sanitary sewer system (total flow to Low Pressure Sewer System = 19,320 gpd). Note that the future phase of 137 single family lots will be served by a low pressure sewer system and has been accounted for in the development of our Low Pressure Sewer Model but the flow and lines will be designed and permitted at a later date. Please also note that regardless of the breakdown of flow served by the low-pressure sewer system versus traditional gravity that all of the flow is charging to the same existing gravity sanitary sewer outfall. Again, please note that an entire low-pressure sewer model for all phases of development (current and future) has been developed to ensure adequate scour velocity and pump capability throughout the entire system. All low-pressure sewer lines within the development have been properly sized to account for all anticipated future development within the projected low- pressure sewer basin. Project Name: The Sanctuary at Angels Trace Client: Bill Clark Homes, LLC pARAMOUNTE Project Number: 19228.PE Prepared By: CWM F N G I N E F R I N G N C Date: 9/1/20 Amenitv Area Flow to Low Pressure Sewer Total Flow to Gravity Sewer 29,490 GPD Total Flow to LPS System 19,320 GPD Total Flow 48,810 GPD Legend North Carolina Floodplain Mapping Program Panels I I Political Areas Stream Centerline Cross S ections —rT-T-r-f' Levee Flood Hazard Areas AE ,ff OF Floodway(AE) Approximate Site Location _:. 0.2 % Chance Annual Flood Hazard Future Conditions t%Annual Chance Flood Hazard