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HomeMy WebLinkAboutWQ0038968_Application (FTSE)_20210504Permit Number WQ0038968 Program Category Non -discharge Permit Type Gravity Sewer Extension, Pump Stations, & Pressure Sewer Extensions Primary Reviewer dean. hunkele Coastal SWRule Permitted Flow 12,480 Facilitv Facility Name Jensens Coastal Plantation Sewer Location Address Owner Owner Name Pluris Hampstead LLC Central Files: APS _ SWP 4/8/2021 Permit Tracking Slip Status Project Type In review Major modification Version Permit Classification D Individual Permit Contact Affiliation Major/Minor Region Minor Wilmington County Fender Facility Contact Affiliation Owner Type Non -Government Owner Affiliation Randy R. Hoffer 1095 NC Hwy 210 Dates/Events Sneads Ferry NC 28460 Scheduled Orig Issue App Received Draft Initiated Issuance Public Notice Issue Effective Expiration 2/1/2017 4/1/2021 Regulated Activities Requested iReceived Events Domestic, other Additional information requested Subdivision Additional information received Wastewater collection. Outfa Waterl Subbasin A4 Michael C. Gallant PE, PA Engineering / Consulting / Design NC Firm C-1989, AL Firm CA - 4338 —E NC Reg. No. - 25572, AL Reg. No. - 32178 April 1, 2021 Dean Hunkele Water Quality Regional Operations Section Wilmington Regional Office Division of Water Resources, NCDEQ 127 Cardinal Drive Ext, Wilmington, NC 28405 Re: Wastewater Collections System Extension Permit No. WO0038968 Jensens' Coastal Plantation Pender County Dear Dean, Clc4 V ic- 01 2021 BY: This permit modification is for the upgrade to the main lift station in the Jensen's community. This upgrade will allow for the addition of the proposed residences and tributary flow. Please note thatrecent drawdown tests show the existing pumps able to surpass 80 gpm. Despite this flow Pluris felt it was reasonable and prudent to upgrade the pumps to avoid any possible future issues. The proposed pumps will be capable of 125 gpm. I have included the application, the fee, the USE for the additional flow (total station design flow is 24,000 gpd), and the calculations for the new pumps. MX Michael C. Gallant, PE 11Pa9e State of North Carolina nWR Department of Environmental Quality Division of Water Resources 15A NCAC 02T .0300 — FAST TRACK SEWER SYSTEM EXTENSION APPLICATION Dlvlslon of Water Resources FTA 04-16 & 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: Pluris Hampstead. LLC (company, municipality, HOA, utility, etc.) 2. Applicant type: ❑ Individual ❑ Corporation ❑ General Partnership ❑ Federal ❑ State/County ❑ Municipal 3. Signature authority's name: Randy Hoffer per 15A NCAC 02T .0I06(b) Title: Regional Manager• 4. Applicant's mailing address: 1095 IIwy 210 City: Sneads Ferry State: NC Zip: 28460- 5. Applicant's contact information: Phone number: 910) 327-2880 Email Address: rhoffer@plurisusa.com plurisusa.com ® Privately -Owned Public Utility ❑ Other II. PROJECT INFORMATION: I. Project name: Jensens Coastal Plantation 2. Application/Project status: ❑ Proposed (New Permit) ® Existing Permit/Project If a modification, provide the existing permit number: W00038968 and issued date: Jul 9 q (q—Zi If new construction but part of a master plan, provide the existing permit number: W000 3. County where project is located: Pender 4, Approximate Coordinates (Decimal Degrees): Latitude: 34.373068' Longitude:-77.698627' 5. Parcel ID (if applicable): 3292-39-3667-0000 (or Parcel ID to closest downstream sewer) III. CONSULTANT INFORMATION: 1. Professional Engineer: Michael C. Gallant, PE License Number: 25572 Firm: Michael C. Gallant, PE Mailing address: PO Box 4039 City:.Surf City State: NC Zip: 2844.5-_ Phone number: (910) 448-1046 Email Address: RallantmcQryahoo.com IV. WASTEWATER TREATMENT FACILITY (W WTF) INFORMATION: 1. Facility Name: Pluris Hampstead WWTF Permit Number: — Owner Name: Pluris Hampstead, LLC V. RECEIVING DOWNSTREAM SEWER INFORMATION (if different than W WTF): 1. Permit Number(s): WQ0037287 Downstream (Receiving) Sewer Size: Which inch System Wide Collection System PermitNunrber(s) (if applicable): WQCS0037324 Owner Name(s): Pluris Hampstead, LLC FORM: FTA 04-16 Page I 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 Onerational Agreement (FORM: DM been attached? ❑ Yes ❑No ®N/A 3. If the Applicant is a Home/Property Owners' Association has in Operational Aereentent (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. Has a flow reduction been approved under 15A NCAC 021' .01 14(t)? ❑ Yes ® No ➢ If yes, provide a cony of flow reduction approval letter 7. Summarize wastewater generated by project: Establishment Type (see 02T.0114(B) Daily Design Flow No. of Units Clow 997 addition) units @ 60 gpd/bdr and 2 bdrs /unit=120 d/unit 120 gal/unit 97 11640 GPD gal/ GPD gal/ GPD gal/ GPD gal/ GPD GPD gal/ Total 11640 GPD a See 15A NCAC 02T .0114(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 properly 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.01141 shall be determined using available flow data, water using fixtures, occupancy or operation patterns, and other measured data. 8. Wastewater generated by project: 11640 GPD (per 15A NCAC 02T .01 14) ➢ 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-I6 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 ➢ Section 11 & 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 (Pumo Stations/Force Mains): COMPLETE FOR EACH PUMP STATION INCLUDED IN THIS PROJECT 1. Pump station number or name: Jensens LS 2. Approximate Coordinates (Decimal Degrees): Latitude: 34.373068° Longitude:-77.698627' 3. Design flow of the pump station:.024 millions gallons per day (firm capacity) 4. Operational point(s) of the pump(s): 125 gallons per minute at 99.2 feet total dynamic head (TDH) 5. Summarize the force main to be permitted (for this Pump Station): Size (inches) Length (feet) Material 6. Ploweerreliability inaccordance with 15ANCAC 021'.0305(h)(1): Lid' Standby power source or pump with automatic activation and telemetry - 15A NCAC 02T .0305(h)(l)(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 6 Portable pumping unit with plugged emergency pump connection and telemetry - 15A NCAC 02T .0305(h)(1)(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 thmefiames, 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(t)): 1. Does the project comply with all separations found in 15A NCAC 02"r 0305(f) & (e) ➢ 15A NCAC 02T.0305(f) contains minimum separations that shall be provider) fur sewer syste.ins- ❑ 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 swiniming pools 10 feet Final earth grade vertical 36 inches ➢ 15A NCAC 02T.0305(g) contains alternatives where separations in 02T.0305(t) cannot be achieved. )> **Stearn classifications can be identified using the Division's NC Surface Water Classifications weboage ➢ If noncompliance with 02T.0305(t) 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 _I5A NCACO2B .02009 ® Yes ❑ No ➢ This would include Trout Buffered Streams per I SA NCAC 2B.0202 4. Does the project comply with an individual404 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 Permitting Branch 5. Does project comply with 15A NCAC 02T.0 1 05(c)(6) (additional permits/certifications)? ® Yes ❑ No Per 15A NCAC 02T.0105(c)L6J, directly related environmental pennits 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, stonuwater 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, siplion, 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 he inspected by the purmiftee 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 Punm Stations and For cc 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 request is required prior to submittal of the Fast Track Application and supporting documents 2. Professional Engineer's Certification: Ac& t'Ct=� �`� attest that this application for Engineer's name from Application Item III.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, 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: Applicant's Certification per 15A NCAC 02T .0106(b): (Signature Authority's name &title from i for 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 fine not to exceed $10,000 as well as civil penalties up to $25,000 per violation. i Signature: i i — Date: FORM: FTA 04-16 Page 5 of 5 010'.1nn of Wate, Re"oune•z State of North Carolina Department of Environmental Quality Division of Water Resources Flow Tracking for Sewer Extension Applications (FTSE 10-18) Entity Requesting Allocation: Pluris Hampstead LLC Project Name for which flow is being requested: Jensens Coastal Plantation More Ilion one FTSE nury be required for a single projeet If the owner of the WWTP is not responsible for all punnp 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: Pluris, Hampstead b. WWTP Facility Permit #: WQ0037287 All flows are in MGD c. WWTP facility's permitted flow 0.250 d. Estimated obligated flow not yet tributary to the WWTP 0.015 e. WWTP facility's actual avg. flow 0.123 f. Total flow for this specific request 0.011640 g. Total actual and obligated flows to the facility 0.149640 h. Percent of permitted flow used 59% 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 Obligated, Pump Pump Average Approx, Not Yet Total Current Station Station Firm Daily Flow** Current Tributary Flow Plus (Name or Permit Capacity, * (Firm / po, Avg. Daily Daily Flow, Obligated Available Number) No. MGD MGD Flow, MGD MGD Flow Capacity*** Regional Station 1.700 0.680 0.100 0.020 0.120 0.560 * 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 (po 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): Pluris Hampstead LLC Downstream Permit Number: WQCS0037324 Page 1 of 6 FTSE 10-18 III. Certification Statement: I Randy Hoffcr, Regional Manager 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 tinder 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 Offteial Signature G Qv v Page 2 of 6 PTSE 10-18 JENSENS LIFT STATION WET WELL AND PUMP CALCULATIONS FLOW 24000 gpd PEAKFACTOR 3.0 PEAK FLOW 50.00 9prn CYCLE TIME 15 minutes Qdf 16.67 gpm DIP 125.00 gpm ACTIVE STORAGE VOLUME 216.67 gallons MANHOLE ID 8 ft MIN STORAGE DEPTH 1.58 ft EXISTING GROUND ELE 33.60 ft LOWEST INVERT IN 28.68 ft MIN WET WELL DEPTH 13 it LIFT STATION RIM INV 35.10 ft LIFT STATION BOTTOM INV 22.10 ft PUMPS OFF FLOAT ELE 26.10 ft 3/30/21 revision for new pumps 14.73333 PUMP RUN TIME 1.73 limmutes CYCLES PER HOUR 4.00 ACTUAL STORAGE DEPTH 1.58 Ift TDH CALCULATIONS ANTI -FLOTATION CALCULATIONS AREA OF WW STORAGE 50.24 sf INSIDE DEPTH OF WW 13 ft VOLUME OF WW WATER 653.12 cu ft WALLTHICKNESS 0.75 ft LID THICKNESS 0.75 ft BASE THICKNESS 1 ft BASE FLANGE EXTENSION 1.5 ft LID VOLUME 53.13 cu ft CYLINDER VOLUME 252.43 cu ft CYLINDER VOL ABOVE GRADE 14.56 cu ft BASE VOLUME 122.66 cu ft VOLUME OF CONCRETE 428.22 cu ft TOTAL WW DISPLACEMENT VOL 1013.64 cu ft WEIGHT OF WATER 64.4 Ibs/cf BOUYANCY FORCE 65278 Ibs REQRD. RESIST. 97918 Ibs WEIGHT OF SOIL 60 Ibs/cf WEIGHT OF CONCRETE 150 Ibs/cf WEIGHT OF WET WELL 64232.6 Ibs VOLUME OF SOIL ON WW FLANGE1 595.8 cu ft WEIGHT OF SOIL ON WW FLANGE1 35748.9 Ilbs TOTAL RESISTANCE PROVIDED1 99981.5 Ibs RESIST. PROV. > RESIST. REQU.1 YES