Loading...
HomeMy WebLinkAboutWQ0040955_Application (FTSE)_202005140 sq I Co " -J /'1f ytl, �l _ 71L7 State of North Carolina I) Department of Environmental Quality WRDivision of Water Resources 15A NCAC 02T .0300 — FAST TRACK SEWER SYSTEM EXTENSION APPLICATION Division of Water Resources INSTRUCTIONS FOR FORM: FTA 04-16 & SUPPORTING DOCUMENTATION This application is for sewer extensions involving gravity sewers, pump stations and force mains, or arty combination that has been certified by a professional engineer and the applicant that the project meets the requirements of 15A ,1CA�2r and the Division's Minimum Design Criteria and that plans, specifications and supporting documents have been prepared In accordance with, 15A NCAC 02T, 15A NCAC 02T .030% Division policies and -ood en ineerirt practices. _ r While no upfront engineering design documents are required for submittal, in accordance with 15A NCAC 02T .0305(b), design documents must be prepared prior to submittal of a fast track permit application to the Division. This would include plans, design calculations, and project specifications referenced in 15A NCAC 02T .0305 and the applicable minimum design criteria. These documents shall be available upon request by the Division. Projects that are deemed permitted (do not require a permit from the Division) are explained in 15 CAC 02T.0303. Projects not eligible for review via the fast track process (must be submitted for full technical review): ➢ Projects that require an environmental assessment in accordance with 15A NCAC 1 C .0100; ➢ Projects that do not meet any part of the minimum design criteria (MDC) document; ➢ Projects that involve a variance from the requirements of 15A NCAC 2T; D Pressure sewer systems utilizing septic tank -effluent pumps (STEPs) or simplex grinder pumps; D STEP or simplex grinder pumps connecting to pressurized systems (e.g. force mains); ➢ Vacuum sewer systems. General - When submitting an application, please use the following instructions as a checklist in order to ensure all required items are submitted. Adherence to these instructions and checking the provided boxes will help produce a quicker review time and reduce the amount of requested additional information. Failure to submit all required items will necessitate additional processing and review time, and may result in return of the application. Unless otherwise noted, the Applicant shall submit one original and one copy of the application and supporting documentation. A. One Original and One Copy of Application and Supporting Documents ® Required unless otherwise noted B. Cover Letter (Required for All Application Packages): ® List all items included in the application package, as well as a brief description of the requested permitting action. Be specific as to the system type, number of homes served, flow allocation required, etc. ➢ If necessary for clarity, include attachments to the application form. C. Application Fee (All New and Major Modification Application Packages): ® Submit a check or money order in the amount of $480.00 dated within 90 days of application submittal. Payable to North Carolina Department of Environmental Quality (NCDEQ) D. Fast Track (Form: FTA 04-16) Application (Required for All Application Packages): ® Submit the completed and appropriately executed application. ➢ If necessary for clarity or due to space restrictions, attachments to the application may be made. ® If the Applicant Type in Item I.2 is a corporation or company, provide documentation it is registered for business with the North Carolina Secretan of State. El If the Applicant Type in Item 1.2 is a partnership or d/b/a, enclose a copy of the certificate filed with the Register of Deeds in the county of business. ® The Project Name in Item 11.1 shall be consistent with the project name on the flow acceptance letters, agreements, etc. ® The Professional Engineer's Certification on Page 5 of the application shall be signed, sealed and dated by a North Carolina licensed Professional Engineer. ® The Applicant's Certification on Page 5 of the application shall be signed in accordance with 15A NCAC 02T _0106 1 b. Per 15A NCAC 02T .0106(c), an alternate person may be designated as the sighing official if a delegation letter is provided from a person who meets the criteria in 15A NCAC 02T .0106(b). INSTRUCTIONS FOR FORM: FTA 04-16 & SUPPORTING DOCUMENTATION Pagel of 3 E. Flow Tracking/Acceptance Form (Form: FTSE 04-16) (If Applicable): ® Submit the completed and executed FTSE form fium the owners of the downstream sewers and treatment facility. ➢ Multiple forms maybe required where the downstream sewer owner and wastewater treatment facility are different. ➢ The flow acceptance indicated in form FTSE must not expire prior to permit issuance and must be dated less than one year prior to the application date. ➢ Submittal of this application and form FTSE indicates that owner has adequate capacity and will not violate G.S. 1 =3- 2 5.b74a.1. D Intergovernmental agreements or other contracts will not be accepted in lieu of a project -specific FTSE. F. Site Maps (All Application Packages): ® Submit an 8.5-inch x I 1-inch color copy of a USGS Topograpbic Map of sufficient scale to identify the entire project area and closest surface waters. D Location of the project (gravity sewer, pump stations & force main) ➢ Downstream connection points and permit number (if known) for the receiving sewer ® Include a street level map (aerial) showing general project area so that Division staff can easily locate it in the field. G. Existing permit (All Modification Packages): ® Submit the most recently issued existing permit. ® Provide a list of any items within the permit the Applicant would like the Division to address during the permit modification (i.e., permit description, flow allocation, treatment facility, etc.). H. Power Reliability Plan (Required ifportable reliability option utilized for Pump Station): ❑ Per 15A NCAC 2T .0305f h)t1 I, submit documentation of power reliability for pumping stations. ➢ This alternative is only available for average daily flows less than 15,000 gallons per day D It shall be demonstrated to the Division that the portable source is owned or contracted by the applicant and is compatible with the station. The Division will accept a letter signed by the applicant (see I SA NCAC 02T .0106(b)) or proposed contractor, stating that "the portable power generation unit orportable, independently -powered pumping units, associated appurtenances and personnel are available for distribution and operation of this pump station." ➢ If the portable power source or pump is dedicated to multiple pump stations, an evaluation of all the pump stations' storage capacities and the rotation schedule of the portable power source or pump, including travel timeframes, shall be provided In the case of a multiple station power outage. (Required at time of certification) I. Certificate of Public Convenience and Necessity (AH Application Packages for Privately -Owned Public Utilities): ❑ Per UA NCAC 02T .0 115 1 a)i1 i provide the Certificate of Public Convenience and Necessity from the North Carolina Utilities Commission demonstrating the Applicant is authorized to hold the utility franchise for the area to be served by the sewer extension, or ❑ Provide a letter from the North Carolina Utilities Commission's Wa:er and Sewer Division Pu 1ic tati stating an application for a franchise has been received and that the service area is contiguous to an existing franchised area or that franchise approval is expected. J. Operational Agreements (Applications from HOA/POA and Developers for lots to be sold): • Home/Property Owners' Associations ❑ Per 15A NCAC 02r .01 _J. submit the properly executed c gyrational. A_ree:nent 1FORM: HOAR. ❑ Per 15A NCAC 02T .0115(c), submit a copy of the Articles of Incorporation, Declarations and By-laws. ❑ Developers of lots to be sold ❑ Per 15A NCAC 02T .0115(b), submit the properly executed Qivndtional Agreement [FORM: ut VJ. For more information, visit the Division's collection systems website INSTRUCTIONS FOR FORM: FTA 04-16 & SUPPORTING DOCUMENTATION Page 2 of 3 THE COMPLETED APPLICATION PACKAGE INCLDING ALL SUPPORTING INFORMATION AND MATERIALS, SHOULD BE SENT TO THE APPROPRIATE RE I NAL OFFI E: REGIONAL OFFICE Asheville Reuionel Office ter Quality 3amign Fayetteville ReRionar Qtflce Water QualAy Section M r stall Ra I nal Office Water quality Sactfon RaicI ah Regional Office Water Quality Sertign Washington Regional Office Wittgr Qgality $94:11on WIMInWon R Ion I Office W i r,Quality Suction Win n- Radonal Offign Water QuayS.ectlon ADDRESS 2090 US Highway 70 Swannanoa, North Carolina (826)296-4500 (828) 299-7043 Fax 225 Green Street Suite 714 Fayetteville, North Carolina (910)433.3300 (910) 486-0707 Fax COUNTIES SERVED Avery, Buncombe, Burke, Caldwell, Cherokee, 28778 Clay, Graham, Haywood, Henderson, Jackson, Macon, Madison, McDowell, Mitchell, Polk, Rutherford, Swain, Transylvania, Yancey Anson, Bladen, Cumberland, Hamett, Hoke, 28301-5094 Montgomery, Moore, Robeson, Richmond, Sampson, Scotland 610 E. Center Avenue Mooresville, North Carolina 28115 (704) 662A699 (704) 663-6040 Fax 1628 Mal Service Center Raleigh, North Carolina 27699-1628 (919) 791-4200 (919) 788-7159 Fax 943 Washington Square Mail Washington, North Carolina 27889 (252) 946-6481 (252) 975-3716 Fax 127 Cardinal Drive Extension Wilmington, North Carolina 28405 (910)796-7215 (910) 350-2004 Fax 450 W. Hanes Mill Road Suite 300 Winston-Salem, North Carolina 27105 (336) 776-9800 Alexander, Cabarrus, Catawba, Cleveland, Gaston, Iredell, Lincoln, Mecklenburg, Rowan, Stanly, Union Chatham, Durham, Edgecombe, Franklin, Granville, Halifax, Johnston, Lee, Nash, Northampton, Orange, Penton, Vance, Wake, Warren, Wilson Beaufort, Bartle, Camden, Chowan, Craven, Cunituck, Dare, Gates, Greene, Hertford, Hyde Jones, Lenoir, Martin, Pamlico, Pasquotank, Perquimans, Pitt, Tyrrell, Washington, Wayne Brunswick, Carteret, Columbus, Duplin, New Hanover, Onslow, Pender Alamance, Alleghany, Ashe, Caswell, Davidson, Davie. Forsyth, Guilford, Rockingham, Randolph, Stokes, Surry, Watauga, Wilkes, Yadkin INSTRUCTIONS FOR FORM: FTA 04-16 & SUPPORTING DOCUMENTATION Page 3 of 3 State of North Carolina DWR Department of Environmental Quality Division of Water Resources l5A NCAC 02T .0300 — FAST TRACK SEWER SYSTEM EXTENSION APPLICATION ["vision of Water Resources FTA 04-16 & SUPPORTING DOCUMENTATION Application Number. ��bl r � (,. b. w pkt d by DwR) All items must be com leted or the aDolication will be returned I. APPLICANT INFORMATION: l . Applicant's name: Town of Pittsb ro (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: IgU Rote at per 15A NCAC 02T .01.06ib1 Title: Utilities Director 4. Applicant's mailing address: 635 East Strce City. Pitt boro State: NC Zip: 27312_ 5. Applicant's contact information: Phone number: 914 4422-4621 Email Address: JPotea PittsboreNC.eov H. PROJECT INFORMATION: L Project name: Mosaic at Chatham Park - Area'A' 2. Application/Project status: ❑ Proposed (New Permit) ® Existing Permit/Project If a modification, provide the existing permit number WQ0040455 and issued date: 06/20/19 If new construction but part of a master plan, provide the existing permit number. WQOQ10602 3. County where project is located: Chatham 4. Approximate Coordinates (Decimal Degrees): Latitude: 35.755560 Longitude: -79.1 639° 5. Parcel ID (if applicable): 68503 (or Parcel ID to closest downstream sewer) III. CONSULTANT INFORMATION: I. Professional Engineer. Joseph M. CraiQ License Number: 034332 Firm: CELL Mailing address: 301 Glenwood Avenue, Suite 22Q City: Raleigh State: NC Zip: 27603- Phone number. ( D 367-8790 Email Address: Mitc aiCEGroualnc.com IV. WASTEWATER TREATMENT FACILITY (WWTF) INFORMATION: I. Facility Name: Town of Pittsboro Wastewater Treatment Facility Permit Number: NCO02035 Owner Name: Town of Pittsboro V. RECEIVING DOWNSTREAM SEWER INFORMATION (if different than WWTF): 1. Permit Number(s): WQ0010602 Downstream (Receiving) Sewer Size: 8 inch SxshemWide COEI.Oct;on Srstcm 1'cr-rtiit.NumbcT1s 1 of a�tjivablc}: WQCS Owner Name(s): Tgwt; of Pitts€roro 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 ®NIA 2. If the Applicant is a Developer of lots to be sold, has a DevelOMr's OlLe liaria] Acreement +FORM: DEVj been attached? ❑ Yes ❑No ®N/A 3. If the Applicant is a HomyPr rrtti.Q*T s' Association. has an %cm6ona] Al-eccmcnt tFORM: HOA1 been attached? ❑ Yes ❑No ®N/A 4. Origin of wastewater: (check all that apply): ❑ Residential Owned ® Retail (stores, centers, malls) ❑ Car Wash ® Residential Leased ® RetaiI with food preparation/service ❑ School / preschool 1 day care ❑ Medical / dental / veterinaryfacilities ® Swimming and/or Motels ❑Swimming Poo! !Clubhouse ® Food and drink facilities ❑ Church ® Businesses / offices / factories ❑ Nursing Home Swimming Pool/Filter in ltAttachment) Backwash ❑ Other (Explain n chment) 5. Nature of wastewater: 100 Va Domestic/Commercial % Commercial Q % Industrial See 15A NCAC 02T .01 U3; 201) bIs there a Pretreatment Program in effect? ❑ Yes ® No 6, Hasa flow reduction been approved under 1 SA NCAC 02T1141 F ? ❑ Yes ® No ➢ If yes. Providea colav of flow reduction approval letter 7. Summarize wastewater generated by project: Establishment Type (see 21I.Q114 Office (General) Retail Sales (General) Restaurant (General) Residential Condo (5-1 Bdrm, 6-2 Bdrm, 1- Pharmacy Medical Daily Design Flow'-b No, of Units Flow 25 gal/Employee 201 5,030 GPD 100 gal/1,000 sf 38,795 3,910 GPD 40 gal/Seat 687 27,480 GPD 240 gallunit 12 3,000 GPD 300 gal/1000 sf 3,000 900 GPD 250 gal/practitioner/shift 30 7,630 GPD Total 1 47,950 GPD a See 15A NCAC 02T .0 ] 14(b). JA- t--1" tin d_(eXL1 for caveats to wastewater design flow rates (i.e., minimum now 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 (s_S, 42A4). b Per 15A NCAC 02T .0I 14(c), design flow rates for establishments not identified [in table 15A NCAC 02T.0114] shall be determined using available flow data, water using fixtures, occupancy or operation patterns, and other measured data. 8. Wastewater generated by project: 47.950 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-I6 Page 2 of 5 VIL GRAVITY SEWER DESIGN CRITERIA (If Applicable) - 02T.030 & MDC fryrarltti Sewers); I. Summarize gravity sewer to be permitted: 7 Size (inches) Length (feet) Material 12 148 PVC ^� 12 315 DIP 10 235 DIP 8 1,035 I PVC 8 2,224 DIP y D Section H & III of the MDC for Permitting of Gravity Sewers contains information related to design criteria D Section III contains information related to minimum slopes for gravity sewer(s) D Oversizing lines to meet minimum slope requirement is not allowed and a violation of the MDC VIIL PUMP STATION DESIGN CRITERIA (If Applicable) — 02T .4305 & MDC f Pum a Stations Force i Iainsl: COMIPLETE FOR EACH PUMP STATION INCLUDED IN THIS PROJECT I . Pump station number or name: 2. Approximate Coordinates (Decimal Degrees): Latitude: _ Longitude: - ° 3. Design flow of the pump station: millions gallons per day (rum capacity) 4. Operational point(s) of the pump(s): gallons per minute at — feet total dynamic head CMH) 5. Summarize the force main to be permitted (for this Pump Station): FSize (inches) Length (feet) Material 6. Power reliability in accordance with 15A NCAC_02-f- ,03051h 1}: ❑ Standby power source or pump with automatic activation and telemetry - 15A NCAC 02T .0305(h)(1)(B) Y Required for all pump stations with an average daily flow greater than or equal to I5,000 gallons per day >a 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)(1)(C): D 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. D 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: FrA 04-16 Page 3 of IX. SETBACKS & SEPARATIONS — (02B .0200 & 15A NCAC 02T .0305(i)): 1. Does the project comply with all separations found in 15 A.NCAC 02T .03050 & ® Yes C1 No ➢ 15ANCACO2TG3Qg contains alternatives where separations in UT,03051 t cannot be achieved >a **Stream classifications can be identified using the Division's Surf y Water Cia ific�tiorss web a �e D If noncompliance with 02T. see Section X of this application 2. Does the project comply with separation requirements for wetlands? (50 feet of separation) ® Yes ❑ No ❑ NIA D See the Division's draft separation requirements for situations where separation cannot be meet D No variance is requited if the alternative design criteria specified is utilized in design and construction Y As built documents should reference the location of areas effected 3. Does the project comply with setbacks found in the river basin rules per 15A NCAC 02B .0200'? ❑ Yes ❑ No ® NIA ➢ This would include Trout Buffered Streams per 15:k N AC 2B.0202 - 4. Does the project require coverage/authorization under a 404 Nationwide or ❑ Yes ® No individual permits or 401 Water Quality Certifications? D Information can be obtained from the 401 & Buffer Pcrmittin.i-t Branch 5. Does project comply with L5&NCAC Q2T.0101(cj L� 1 (additional permits/certifications)? ® Yes [:]No Per 15A NCAC 2T.010 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 , "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 [:]NIA D If yes, include an attachment with details for each line, including type (aerial line, size, material, and location). High priority limes shall be inspected by the permittee or its representative at least once every six -months and inspections documented per ISA 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 (21, the Wrlim M j:7c:iL'r1Criteri for tine Permit ni& of Pum-Stations all Force Mairl's,Jjgterit versio�i , and the Gmvii% Scwer Minimum Design Criteria latest vcrsionj 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 rearrest is required Prior to submittal 2f the Fast Track Application and supporting documents. 2. Professional Engineer's Certification: attest that this application for (Professional 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 S 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, J n ri t-1► (� + 1 L1 Td ES D r fZ fi: eTo ft attest that this application for (Signature Authority's name dt title €ram Application Item I.3.) 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 and 14 ; ? 15.CB, 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. � 5 Signature: f l FORM: FTA 04-16 Date: ?/7 1,-L-e Page 5 of 5 State of North Carolina Department of Environmental Quality Division of Water Resources wat sources Flow Tracldng for Sewer Extension Applications (FTSE 10-18) Entity Requesting Allocation: Town of Pittsboro Project Name for which flow is being requested: Mosaic at Chatham Park - Area "A" More than one FTSE maybe required for a single project if the owner of the WWTP is not responsthk for all pump stations along the range of the proposed wastewater flow I. Complete this section only if you are the owner of the wastewater treatment plant. a. W)V IP Facility Name: Town of Pittsboro Wastewater Treatment Facility b. WWTP Facility Permit M NC0020354 All, flows are in MGD c. WWTP facility's permitted flow 0.75 d. Estimated obligated flow not yet tributary to the WWTP 0.1361 e. WWTP facility's actual avg. flow 0.5029 f. Total flow for this specific request 0.04795 g. Total actual and obligated flows to the facility 0.68695 h. Percent of permitted flow used 92% H. 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) (C) (D)=(B+C) IE)a(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*** CLLC W 0010602 0,2875 0.115 0.006 0 0.006 0.091 * 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 pealdng 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): CLLC Pump Station Downstream Permit Number: WQ0010602 Pagel of 6 FTSE 10-18 M. Certification Statement: I John Poteat 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 H 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. Signin icial Signature ri•�ing �.s� TYtle oial Date Page 2 of 6 FTSE 1D-l8 m n a� h � � w e �J U a E� � � is U a 4, 'o Q L 0 CO 7� V O N M 1� G1 E N Q co ,2 = ui ci IE— c7 y a� w T h � do `D ID tD Ln O W) go CD 1L� J 7d h � m O 00 to 2 Q' ll� L a 4 � J _l5 in go ETA � V T � O w Z ualit}+ NC Dept of Environmental Q MAY 14 2020 Raleigh Regional Office ROY COOPER Covemor MICHAEL S. REGAN Secretary LINDA CULPEPPER Virecrar N.)RTH CAROLINA l:nvlranmental Qualar June 20, 2019 Bryan Gruesbeck, Town Manager Town of Pittsboro 635 East Street Pittsboro, NC 27312 Subject: Permit No. WQ0040955 Town of Pittsboro Mosaic at Chatham Park —Area 'A' Wastewater Collection System Extension Permit Chatham County Dear Mr. Gruesbeck: In accordance with your application received May 6, 2019, and additional Information received on June 19, 2019, we are forwarding herewith Permit No. WQ0040955 dated June 20, 2019, to the Town of Pittsboro (Permittee) for the construction and o eration upon certification of the subject wastewater collection system extension. This permit shall be effective from the date of issuance until rescinded and shall be subject to the conditions and limitations as specified therein. This cover letter shall be considered a part of this permit and is therefore incorporated therein by reference. Please pay particular attention to the following conditions contained within this permit: Condition 11.1: This permit shall not be automatically transferable; a request must be made and approved. Condition 11.4: Requires that the wastewater collection facilities be properly operated and maintained in accordance with 15A NCAC 02T .0403 or any individual system -wide collection system permit issued to the Permittee. Condition 11.4e: This project contains an aerial, high priority line. High -priority sewer lines shall be inspected at least once per every six, months and inspections documented. Please add this line to the Town's list of high V iority lines Per condition V.4 of he Town's collection system ermi (permit number W CS 146 . Condition 11.7: Upon completion of construction and Prior to operation of these permitted facilities, the completed Engineering Certification form with checklist attached to this permit shall be submitted with the required supporting documents to the address provided on the form. Permit modifications are required for any changes resulting in non-compliance with this permit, regulations, or the Minimum Design Criteria. [15A NCAC 02T.01161 o North Carolina Department of Environmental Quality Division of Water Resources Raleigh Regional office 1628 Mail Service Center. Raleigh. NC 27699 1628 Town of Pittsboro Permit No. WQ0040955 It shall be the responsibility of the Permittee to ensure that the as -constructed project meets the appropriate design criteria and rules. Failure to comply may result in penalties in accordance with North Carolina General Statute §143-215.6A through §143-215.6C, construction of additional or replacement wastewater collection facilities, and/or referral of the North Carolina -licensed Professional Engineer to the licensing board. If any parts, requirements, or limitations contained in this permit are unacceptable, you have the right to request an adjudicatory hearing upon written request within 30 days following receipt of this permit. This request must be in the form of a written petition, conforming to Chapter 150B of North Carolina General Statutes, and filed with the Office of Administrative Hearings, 6714 Mail Service Center, Raleigh, NC 27699-6714. Unless such demands are made, this permit shall be final and binding. If you need additional information concerning this matter, please contact Ted Cashion at (919) 791-4254 or via e-mail at ted.cashion(ancdenr.gov. Sincerely, 3r r for Linda Culpepper Director, Division of Water R �*Rick Bolich, L.G., Assistant Regional Supervisor Water Quality Regional Operations Section Raleigh Regional Office Division of Water Resources, NCDEQ cc: Joseph M. Craig, P.E., CE Group, Inc. (mitch@cegroupinc.com) Regional Office Files Water Resources Central Files Anne Lowry, Chatham County Health Department P2aa 7 of R NORTH CARO-INA Environmental Quality WASTEWATER COLLECTION SYSTEM EXTENSION PERMIT In accordance with the provisions of Article 21 of Chapter 143, General Statutes of North Carolina as amended, and other applicable Laws, Rules, and Regulations, permission is hereby granted to the Town of Pittsboro Chatham County for the construction and operation of approximately 463 linear feet of 12-inch gravity sewer, 235 linear feet of 10-inch gravity sewer, and 3,264 linear feet of 8-inch gravity sewer to serve mixed use development as part of the Mosaic at Chatham Park — Area 'A' project, and the discharge of no additional gallons per day of collected domestic/commercial wastewater (flow will be permitted in subsequent permits) into the Town of Pittsboro's existing sewerage system, pursuant to the application received May 6, 2019 and additional information received on June 19, 2019 and in conformity with 15A NCAC 02T, the Division's Gravity Sewer Minimum Design Criteria adopted February 12,1996 as applicable; the Division's Minimum Design Criteria for the Fast -Track Permitting of Pump Stations and Force Mains adopted June 1, 2000 as applicable; and other supporting data subsequently filed and approved by the Department of Environmental Quality and considered a part of this permit. This permit shall be effective from the date of issuance until rescinded and shall be subject to the specified conditions and limitations contained therein. fot+l3fida Culpepper Director, Division of Water Reso es By Authority of The Environmental Management Commission Permit Number: WQ0040955 Permit Issued: June 20, 2019 Page 3 of 8 SUPPLEMENT TO PERMIT COVER SHEET Town of Pittsboro is hereby authorized to: Construct, and then operate upon certification the aforementioned wastewater collection extension. The sewage and wastewater collected by this system shall be treated in the Town of Pittsboro's Wastewater Treatment Facility in accordance with Permit Number NC0020354. Permitting of this project does not constitute an acceptance of any part of the project that does not meet 15A NCAC 02T; the Division's Gravity Sewer Minimum Design Criteria adopted February 12, 1996 as applicable; and the Division's Minimum Design Criteria for the Fast -Track Permitting of Pump Stations and Force Mains adopted June 1, 2000 as applicable, unless specifically mentioned herein. Division approval is based on acceptance of the certification provided by a North Carolina -licensed Professional Engineer in the application. It shall be the Permittee's responsibility to ensure that the as -constructed project meets the appropriate design criteria and rules. Construction and operation is contingent upon compliance with the Standard Conditions and any Special Conditions identified below. I. SPECIAL CONDITIONS NONE 11. STANDARD CONDITIONS 1. This permit shall not be transferable. In the event there is a desire for the wastewater collection facilities to change ownership, or there is a name change of the Permittee, a formal permit request shall be submitted to the Division accompanied by documentation from the parties Involved, and other supporting materials as may be appropriate. The approval of this request shall be considered on its merits and may or may not be approved. 115A NCAC 02T.0116; G.S 143-215.1(d3)i 2. This permit shall become voidable unless the wastewater collection facilities are constructed in accordance with the conditions of this permit; 15A NCAC 02T; the Division's Gravity Sewer Minimum Design Criteria adopted February 12, 1996 as applicable; the Division's Minimum Design Criteria for the Fast -Track Permitting of Pump Stations and Force Mains adopted June 1, 2000 as applicable; and other supporting materials unless specifically mentioned herein. [15A NCAC 02T.01101 3. This permit shall be effective only with respect to the nature and volume of wastes described in the application and other supporting data. (I5A NCAC 02T .0110j 4. The wastewater collection facilities shall be properly maintained and operated at all times. The Permittee shall maintain compliance with an individual system -wide collection system permit for the operation and maintenance of these facilities as required by 15A NCAC 02T .0403. If an individual permit is not required, the following performance criteria shall be met: a. The sewer system shall be effectively maintained and operated at all times to prevent discharge to land or surface waters, and to prevent any contravention of groundwater standards or surface water standards. Page 4 of 8 b. A map of the sewer system shall be developed and shall be actively maintained. c. An operation and maintenance plan including pump station inspection frequency, preventative maintenance schedule, spare parts inventory and overflow response has been developed and implemented. d. Pump stations that are not connected to a telemetry system shall be inspected every day (i.e. 365 days per year). Pump stations that are connected to a telemetry system shall be inspected at least once per week. e. High -priority sewer lines shall be inspected at least once per every six -months and inspections are documented. f. A general observation of the entire sewer system shall be conducted at least once per year. g. Overflows and bypasses shall be reported to the appropriate Division regional office in accordance with 15A NCAC 28 .0506(a), and public notice shall be provided as required by North Carolina General Statute §143-215.1C. h. A Grease Control Program is in place as follows: 1. For public owned collection systems, the Grease Control Program shall include at least biannual distribution of educational materials for both commercial and residential users and the legal means to require grease interceptors at existing establishments. The plan shall also include legal means for inspections of the grease Interceptors, enforcement for violators and the legal means to control grease entering the system from other public and private satellite sewer systems. 2. For privately owned collection systems, the Grease Control Program shall include at least bi- annual distribution of grease education materials to users of the collection system by the permittee or its representative. 3. Grease education materials shall be distributed more often than required in Parts (1) and (2) of this Subparagraph if necessary to prevent grease -related sanitary sewer overflows. 1. Right-of-ways and easements shall be maintained in the full easement width for personnel and equipment accessibility. j. Documentation shall be kept for Subparagraphs (a) through (1) of this Rule for a minimum of three years with exception of the map, which shall be maintained for the life of the system. 5. The Permittee shall report by telephone to a water resources staff member at the Raleigh Regional Office, telephone number (919) 791-4200, as soon as possible, but in no case more than 24 hours, following the occurrence or first knowledge of the occurrence of either of the following: a. Any process unit failure, due to known or unknown reasons, that renders the facility incapable of adequate wastewater transport, such as mechanical or electrical failures of pumps, line blockage or breakage, etc.; or b. Any SSO and/or spill over 1,000 gallons; or c. Any SSO and/or spill, regardless of volume, that reaches surface water Voice mail messages or faxed information is permissible, but this shall not be considered as the initial verbal report. Overflows and spills occurring outside normal business hours may also be reported to the Division of Emergency Management at telephone number (800) 858-0368 or (919) 733-3300. Persons reporting any of the above occurrences shall file a spill report by completing and submitting Part I of Form CS-SSO (or the most current Division approved form) within five days following first Page 5 of 8 knowledge of the occurrence. This report must outline the actions taken or proposed to be taken to ensure that the problem does not recur. Part II of Form CS-SSO (or the most current Division approved form) can also be completed to show that the SSO was beyond control. [G.S.143-215.iC(al)) 6. Construction of the gravity sewers, pump stations, and force mains shall be scheduled so as not to Interrupt service by the existing utilities nor result in an overflow or bypass discharge of wastewater to the surface waters of the State. [15A NCAC 02T.0108(b)) 7. Upon completion of construction and prior to operation of these permitted facilities, the completed Engineering Certification form with checklist attached to this permit shall be submitted with the required supporting documents to the address provided on the form. A complete certification is one where the form Is fully executed and the supporting documents are provided as applicable. Any wastewater flow made tributary to the wastewater collection system extension prior to completion of this Engineer's Certification shall be considered a violation of the permit and shall subject the Permittee to appropriate enforcement actions. If the permit is issued to a private entity with an Operational Agreement, then a copy of the Articles of Incorporation, Declarations/Covenants/Restrictions, and Bylaws that have been appropriately filed with the applicable County's Register of deeds office shall be submitted with the certification. A complete certification is one where the form is fully executed and the supporting documents are provided as applicable. Supporting documentation shall include the following: a. One copy of the project construction record drawings (plan & profile views of sewer lines & force mains) of the wastewater collection system extension. Final record drawings should be clear on the plans or on digital media (CD or DVD disk) and are defined as the design drawings that are marked up or annotated with after construction information and show required buffers, separation distances, material changes, etc. b. One copy of the supporting applicable design calculations including pipe and pump sizing, velocity, pump cycle times, and level control settings, pump station buoyancy, wet well storage, surge protection, detention time in the wet well, and force main, ability to flush low points in force mains with a pump cycle, and downstream sewer capacity analysis. If a portable power source or pump is dedicated to multiple stations, an evaluation of all the pump stations' storage capacities and the rotation schedule of the portable power source or pump, include travel timeframes, shall be provided. c. Changes to the project that do not result in non-compliance with this permit, regulations, or the Minimum Design Criteria should be clearly identified on the record drawings, on the certification in the space provided, or in written summary form. Prior to Certification (Final or Partial): Permit modifications are required for any changes resulting in non-compliance with this permit (including but not limited to pipe length changes of 10% or greater, Increased flow, pump station design capacity design increases of 5% or greater, and increases in the number/type of connections), regulations, or the Minimum Design Criteria. Requested modifications or variances to the Minimum Design Criteria will be reviewed on a case -by - case basis and each on its own merit. Please note that variances to the Minimum Design Criteria should be requested and approved during the permitting process prior to construction. After - Page 6 of 8 construction requests are discouraged by the Division and may not be approved, thus requiring replacement or repair prior to certification & activation. [15A NCAC 02T .0116] 8. Gravity sewers installed greater than ten percent below the minimum required slope per the Divisions Gravity Sewer Minimum Design Criteria shall not be acceptable and shall not be certified until corrected. if there Is an unforeseen obstacle in the field where all viable solutions have been examined, a slope variance can be requested from the Division with firm Supporting documentation. This shall be done through a permit modification with fee. Such variance requests will be evaluated on a case -by -case basis. Resolution of such request shall be evident priorto completing and submitting the construction certification. [ 15A NCAC 02T.0105(n)] 9. A copy of the individual permit and construction record drawings shall be maintained on file by the Permittee for the life of the wastewater collection facilities. [15A NCAC 02T .0116] 10. Failure to abide by the conditions and limitations contained in this permit; 15A NCAC 02T; the Division's Gravity Sewer Design Criteria adopted February 12, 1996 as applicable; the Division's Minimum Design Criteria for the Fast -Track Permitting of Pump Station and Force Mains adopted June 1, 2000 as applicable; and other supporting materials may subject the Permittee to an enforcement action by the Division, in accordance with North Carolina General Statutes §143-215.6A through §143- 215.6C, construction of additional or replacement wastewater collection facilities, and/or referral of the North Carolina -licensed Professional Engineer to the licensing board. 115A NCAC 02T .0108(b-c)] 11. In the event that the wastewater collection facilities fail to perform satisfactorily, Including the creation of nuisance conditions, the Permittee shall take immediate corrective action, including those as may be required by this Division, such as the construction of additional or replacement facilities. [15A NCAC 02T .0110; 15A NCAC 02T .0108(b)] 12. The issuance of this permit shall not exempt the Permittee from complying with any and all statutes, rules, regulations, or ordinances that may be imposed by the Division any other Federal, State, or Local government agencies which have jurisdiction orobtaining other permits which maybe required by the Division or any other Federal, State, of Local government agencies. [G.S.143-215.1(b)] Page 7 of 8 CERTIFICATION CHECKLIST To be completed by the certifying engineer prior to operation of the permitted sewers, per 15A NCAC 02T.0116. Certifying Engineer: Certification Review Date: Project Name: WQ00 Project County: 1) Has permittee information changed since the permit was issued (or last modified): change of mailing address, change of ownership, transfer from developer to HOA/POA, etc. ❑ Yes ❑ No • If yes, please provide either a change of ownership form or new contact information. Note that transfer of permits from the developer to the HOA/POA must occur with the first certification. 2) Have the as -built drawings have been signed, sealed, and dated by an N.C. PE? ❑ Yes ❑ No 3) Final Engineering certification? ❑ Yes ❑ No • If Partial Engineering certification, provide detailed narrative including what is being certified in the current phase, what was previously certified (if applicable), and what is left to be certified. 4) Adequate information related to sewer lines: ❑ Yes ❑ No ❑ N/A • Three feet minimum cover has been provided for all sewers unless ferrous pipe was installed. • Minimum diameters for gravity sewers are 8-inches for public lines and 6-inches for private lines. • Manholes have been installed: At the end of each line, at all changes in grade, size, or alignment, at all intersections, and at distances not greater than 425 feet; minimum diameter shall be 4 feet (48-inches). 5) Adequate information related to pump stations: ❑ Yes ❑ No ❑ N/A • Ensure power reliability option was selected per 15A NCAC 02T.0305(h). 6) Was project construction completed in accordance with ail of the following: ❑ Yes ❑ No ❑ N/A • 15A NCAC 02T. Minimum Design Criteria (MDC1 for the Permitting of Gravity Sewers latest version), and MDC for the Permitting of Pump Stations and Force Mains (latest version)? If not, a variance approval is required in accordance with 15A NCAC 02T.0105(b). priorto certification and operation. Contact the Central Office to discuss the variance to determine a course of action, Applicant must submit two copies of the variance request form, plans, specifications, calculations, and any other pertinent information to the Central Office (one hard copy, one digital copy). The central office will review the variance request, and if approvable, specific language regarding the variance will be incorporated into the permit, either via a special condition or a supplementary letter. A copy of the reissued permit with variance language or the variance letter must be maintained with the original documents. 7) Does the project contains high priority lines (15A NCAC 02T .0402(2)1? ❑ Yes ❑ No • If yes, ensure that the permit already contains the necessary condition related to high priority lines 15A NCAC 02T.0403 (a)(5). If the permit does not include this language, the Fast Track reviewer will reissue the permit with the appropriate language. 8) Are Permit modifications are required for any changes resulting in non-compliance with this permit (including but not limited to pipe length changes of 10% or greater, change inflow, pump station design capacity design change of 5% or greater, and/or change in the number/type of connections)? ❑ Yes No • if yes, a permit modification request must be submitted to the appropriate Regional Office, and a modified permit with revised certification must be issued prior to certification and operation. North Carolina Department of Environmental Quality Division of Water Resources Raleigh Regional Office 1628 Mail Service Center, Raleigh, NC 27699.1628 Physical Address: 3800 Barrett Drive, Raleigh, NC 27609 919.791.4200 FAST TRACK SEWER ENGINEERING CERTIFICATION PERMITTEE: Town of Pittsboro PERMIT ff: WQ0040955 PROJECT: Mosaic at Chatham Paris —Area 'A' ISSUE DATE: June 20, 2019 This project shall not be considered complete nor allowed to operate in accordance with Condition 7 of this permit until the Division has received this Certification and all required supporting documentation. it should be submitted in a manner that documents the Division's receipt. Send the required documentation the Regional Supervisor, Water Quality Regional Operations Section at the address at the bottom. Any wastewater flow made tributary to the wastewater collection system extension prior to completion of this Certification shall be considered a violation of the permit and shall subject the Permittee to appropriate enforcement actions. The Permittee is responsible for tracking all partial certifications up until a final certification is received. A Final Certification shall be a complete set of record drawings and design calculations regardless of whether partials have been submitted. PERMITTEE'S CERTIFICATION I, the undersigned agent for the Permittee, hereby state that this project has been constructed pursuant to the applicable standards & requirements, the Professional Engineer below has provided applicable design/construction information to the Permittee, and the Permittee is prepared to operate & maintain the wastewater collection system permitted herein or portions thereof. Printed Name, Title Signature ENGINEERS CERTIFICATION Date Ias a dul registered Professional Engineer in the State of North Carolina, having been authorized to observe {periodically, ❑ weekly, [] full time) the construction of the project name and location as referenced above for the above Permittee hereby state that, to the best of my abilities, due care and diligence was used in the observation of the following construction: a roximatel 463 linear feet of 12-inch gravity,sewer, 235 linear feet of 10-inch gravity sewer. and 3.264 linear feet of 8-inch gravity sewer such that the construction was observed to be built within substantial compliance of this permit; 15A NCAC 02T; the Division of Water Resources' (Division) Gravity Sewer Minimum Design Criteria adopted February 12, 1996 as applicable; the Division's Minimum Design Criteria for the Fast -Track Permitting of Pump Stations and Force Mains adopted June 1, 2000 as applicable; and other supporting materials. North Carolina Professional Engineer's Seal w/signature & date: ❑ Final ❑ Partial (include description) Certification Comments/Qualifiers (attach if necessary): North Carolina Department of Environmental Quality Division of Water Resources Ra eigh Regional Office 1628 Mail Service Center, Raleigh, NC 27699 1628 Physical Address. 3800 Barrett Drove. Raleigh, NC 27609 919.791.4200 vMCKQM&CREED ENGINEERS S U R V E Y O R S P L A N N E R S January 3, 2019 M&C 01561-0008 TO: Mr. Jason T. Robinson Water Quality Regional Operations Division of Water Resources, DEQ 3800 Barrett Drive Raleigh, NC 27609 CC: Ms. Elizabeth Goodson Town of Pittsboro Engineer 41 Fayetteville Street PO Box 759 Pittsboro, NC 27312 RE: CLLC Pump Station Report Dear Mr. Robinson: Please find the following Pump Station Report, describing in detail the improvements to the Town of Pittsboro CLLC pump station. If you have any questions or concerns regarding this report, please do not hesitate to contact the Engineer's office. Sincerely, 1 r ya ti4.:,47 D-6 MCKIM & CREED, INC. sull. 500 Ral—g6 HC 27606 Kenneth L. Orie, PE Senior Project Manager 010 233 6001 5A 156110008110-Cmnm %13-Comm with Regu[utory Bodies%CD-1018-04 CUC.', CD-2018-04 Cvodsm response 41h mview PUMP Fa, 019 233 8031 STA77ONREPORT — mclimc...d — v MCKIM&CREED V CLLC PUMP STATION REPORT Date: January 3, 2019 Prepared by: McKim & Creed, Inc. 1730 Varsity Drive, Suite 500 Raleigh, NC 27606 Project#01561-0008 Existing Pump Station Conditions The existing CLLC pump station is outfitted with two (2) 25-HP pumps and a 6-foot diameter wet well. The current pump capacity is approximately 200 gpm, and the flow is regulated with mechanical float control. The existing pump station schematic can be found in Figure A. The current pump station permit is shown in Attachment A. Within the pump station's existing valve vault, two (2) existing 4-inch force mains are routed from the existing wet well into one 6-inch force main. The 6-inch force main then exits the pump station and Russet Run. This then ties into Powell Place and Lowes before discharging into the gravity sewer at 15/501. The pump station is currently outfitted with an odor control tank; however, the system is not currently in use and there is no odor control at the pump station. The pump station also is outfitted with an 80kW/100kVA generator. The generator's size was the limiting factor for sizing pumps at the CLLC pump station. v MCMQ 4&CREED Page 2 of 11 9 Sanitary Sewer Manhole i Odor Control Tank i=leddc Rack y _ Generator ■ i Gravfty Sewer Aj Sanitary Sewer M anhole 8' Wet Well I Ift Two (Z 25-HP Rumps Valve veuR % 6' Chain Link Fence MS Farce M as 1 . A M SSG eoua Emcpd�a.7�otre eaersuao�rs Figure A. The existing CLLC pump station contains two 25hp pumps, a 6 ft wet well, and an 80kW generator. CLLC Pump Station's Delineated Sewer Basin M The CLLC pump station is located in the sewer basin designated as G-01 in the Chatham Park Wastewater Master PIan. The area of this basin is approximately 390 acres. A loading value for a base flow of 99.09 gpm plus 140 gpm (totaling approximately 240 gpm) of wastewater was applied to the two (2) gravity sewers in G-01 to size the lines and pump station in this area. The outline of basin G-01 and the locations of the loading are shown in Figure B. 4MCMM&CREED Page 3 of 11 ' 99.09gpm si�„�� n Y CLLC P5 Legend �'' ►ate 'Q r r'i'� l✓ Scyc Pvnp S:=pis xi t ---� GraatrSaro L 140 gpm ' f Wo ti Figure B. Wastewater model loading of sewer basin G-01 (approx. 390 acres) included approximately 100 gpm applied to one location. Based upon the results of the model, the force mains and gravity mains in sewer basin G- 01 were sized and located as shown in Figure C. MqQM&CREED Page 4 of 11 Figure C. The position and size of gravity and sewer mains in sewer basin GOI were confirmed using the wastewater model. The pattern of influent flow to the CLLC pump station is shown in the hydrograph in Figure D. 4MCMM&CREED Area_7_1 600 550 500 450 400 CL CM 350 3 0 300 o 250 200 Page 5 of 11 150 100 50 29 Wed 3AM 6AM 9AM 12PM 3PM 6PM 9PM 30 Thu Nov 2017 Daterri me Figure D. The hydrograph for the CLLC pump station shows a peak flow of approximately 600 gpm. Proposed Pump Station Design As noted above, future build -out, including a peak that is two (2) times that of the average daily flow as required, will require a pump capable of 600 gpm. This will require two (2) new 50 hp pumps capable of 600 gpm. The control system for the pump will be upgraded to two (2) new VFDs (which will initially be configured and programmed to operate and protect the existing 25 hp pump motors until the flow warrants the 50 hp pumps). When the existing two (2) 25 hp pumps within the pump station are replaced by two (2) new 50 hp motors and 600 gpm pumps, the control system will be switched from floats to flow based controls for the new pumps. In order to allow for easier maintenance and lifting of pumps, a floor mounted hoist with a 1000 lb load capacity will be installed. The existing 80 kW generator will be kept. As required per state code, the generator will power one pump at full loading. v� MCKM4&CREED Page 6 of 11 This station is designed in accordance with the NCDENR criteria. The 600 gpm pump will convey the peak hourly flow to its end point with the largest pump out of service. These pumps are not designed to run in parallel and therefore the generator is not required to provide power for both pumps. The pumps will be on a VFD that allows for "considerations" to be made in the level control of the wet well, which is preexisting and not being modified. The valve vault inside the pump station will be upgraded and the force mains from the wet well will be changed from two (2) 4-inch force mains to two (2) 8-inch force mains. These force mains will exit the pump station structure and enter a proposed second valve vault, where the two (2) 8-inch force mains will combine into one (1) 12-inch force main. A 6-foot chain link fence around the pump station structure will be replaced and expanded to include the new valve vaults as requested by Town of Pittsboro staff. The 12-inch force main will then enter another proposed valve vault, which will tie the new 12-inch force main to the existing force main. This 12-inch force main will then exit the fenced -in pump station area and will be connected to the 12-inch force main line that discharges into the existing gravity line flowing to the WRRF. A 6-inch force main that runs approximately 415 feet will allow the existing Northwood high school to reverse flow and be conveyed to CLLC PS. This will facilitate the startup of the WRRF by providing additional flows. These improvements are shown in Attachment B and summarized in Table A. Table A. Summary of CLLC Pump Station improvements v� MCMM&CREED Page 7 of 11 Component Existing Design I Proposed Design Force Mains I Two (2) 4 in. FMs combining to one 1. Two (2) 8 in. FMs combining to (1) 6 in. FM. one (1)12 in. FM, allowing multiple discharge configurations. 2. Approx. 415 ft. of 6 in. FM tying in from proposed valve vault to the ex. SS MH to allow the pump station to remain in operation during construction. Valve One (1) valve vault within PS Three (3) valve vaults: Vault(s) structure to house combination of two 1. Upgraded ex. valve vault within (2) 4 in. FMs into one (1) 6 in. FM. pump station structure. 2. VaIve vault outside PS structure and within fence line, for combination from two (2) 8 in. FMs into one (1) 12 in. FM. 3. Valve vault outside fence line to house tie-in to ex. 6 in. FM and prop. 6 in. FM to ex. SS MH. Pumps and Two (2) 25 hp motors @ 200 gpm. Two (2) 50 hp motors @ 600 gpm. Motors Hoist None. Floor mounted hoist with 1000 lb load capacity. Fence 6-foot chain link fence with 3 strands New 6-foot chain link fence. of barbed wire. Generator Existing generator serves two (2) 25 Existing generator will serve one (1) hp motors. 50-hp motor. vMCKM&CREED Page S of 11 Construction Sequence The CLLC pump station will remain in operation while improvements to the station are underway. This requires that demolition and construction be carefully sequenced. This sequencing will depend heavily upon the timing of other projects such as the Decentralized Water Resource Reclamation Facility (DWRRF) and the gravity interceptor, therefore, the sequencing suggestions in this report are general guidelines. The general sequence of construction is as follows and is summarized in Figure E. A new section of 6-inch force main from the existing line to the existing sanitary sewer manhole will be constructed. While this part of the force main is being constructed, it is expected that contractors would use the existing pump configuration until final tie-in. This will include the valve vault, which allows flows in multiple directions. V MCMMM&CREED U STEP 1. Constntct t nesv vaWt and ti- f inch force main 1 } STEP2. Connect 1lexiblecunduit to existing pomp for bypass to new & inch force main Page 9 of 11 f — _ _ '•� . STEP 5. Construct }f I Y 1 remainmg pump 0 and remove bypass. t _ _ STEP d, Construct f I controls and VFDs Install one pump construct additional vault, 1 _ I and and conned •• _ — — i pump to neW vaults - tV- TI - -{ Figure L. The CLLC Pump Station sequence of construction begins with installation of a new 6-inch force main and bypass to maintain operation of the pump station as improvements are being made. This new force main configuration is meant to allow for construction of the new discharge piping while maintaining the ability to continue pumping sewage towards Powell Place. This built in flexibility allows, on a temporary basis, to direct the flows of the Northwood High School to the manhole just upstream of the pump station. This would allow those flows to be diverted towards the new DWRRF by closing the valve at 4MCMM&CREED Page 10 of 11 the intersection of 15/501 and Powell Place, to enable start-up of the DWRRF. A map of this area is shown in Figure F. The existing line that conveys flow from Northwood to the Town would remain without flow for an extended period of time. Therefore, to minimize issues related to this situation, we propose that potable water be used to flush the line immediately after the diversion taking place. t-tgure F. Flows from Northwood Nigh School will be diverted during construction, leaving the existing line temporarily without flow. Flushing the existing line with potable water is recommended to help maintain its condition. 4MqC9\4&CREED Page 11 of 11 The pump installation will be coordinated with the transfer of sewage from Northwood. As noted above, the exact timing of the sequence depends on the timing of other projects. The intent of the proposed design is to provide what is required to deliver service to the area, while installation of the larger pumps is to be coordinated with the timing of the opening of the DWRRF as well as with the consideration that the pumps be put into service when the actual flows from Mosaic justify the larger pumps. This is to assure that the pumps are put into service when installed so as not to waste the warranty period. This sequencing will be closely coordinated with the Town of Pittsboro. Future Pump Station Modifications The initial master planning effort identified the area tributary to the CLLC pump station as requiring 900 gpm (peak flow) to accommodate 518,400 gpd (ADF). Therefore, the concurrent design for the CLLC pump station was intended as a temporary measure to gain capacity for allocating sewer capacity and diverting flow to the new DWRRF and the contemporaneous approved master plan reflected a larger pump station downstream once development was underway. However, design flow projections have become more granular and therefore more accurate, it was determined that the proposed CLLC pump station design, capable of handling a peak flow of 600 gpm to accommodate 390,600 gpd (ADF), was sufficient. Therefore, no relocation or future increase in size is necessary based on current development trends. v MCM4&CREED Robinson, Jason From: Mitch Craig <mitch@CEGROUPINC.COM> Sent Friday, July 17, 2020 8:57 AM To: Robinson, Jason Cc: Cashion, Ted; Deck, Erin M; Vinson, Scott; Manuel, Vanessa; Jacob Hudson; Mark Ashness; jpoteat@pittsboronc.gov' Subject: [External] RE: RE: Mosaic at Chatham Park - Area A fast track application mod, WQ0040955 Attachments: 2020-07-17 FTA Form - SIGNED.pdfi 2020-07-17 FTSE Form - SIGNED.pdf; CD-2018-04 Goodson response 4th review PUMP STATION REPORT.pdf end all suspicious email as an attachment to 11 Jason, Attached are PDFs of the revised forms. Please let me know if you need (lard copies. To complete the answer on 6a below: The information for the existing pump station was completely incorrect. I received a copy of a report that was completed by McKim and Creed in January of 2019 that details the revisions to the pump station that are currently being permitted. I haven't reached out to them yet to see when they think it will be constructed yet but am planning on it. Regardless, the capacity of the pump station as it sits now is plenty for the request that we are making. The design flow from the original permit application is 0.115 MGD (page 22 of the attached document) and only there is only 0.006 MGD flow currently in the station. That leaves 0.091 MGD of available capacity in its current state. According to the report, the 200 GPM pumps are slated to be replaced with 600 GPM pumps. I hope this helps answer your questions. I am not sure where the original numbers that were shown on the FTSE came from but they were completely incorrect (may have been left over from copying the form from another project). Thanks, Mitch MITCH CRAIG, PE PRINCIPAL I PROJECT MANAGER CIE GROUP 301 Glenwood Avenue, Suits 220 Raleigh, NC 27603 Phone: (919) 367.8790 ext.108 Cell: (919) 218-0990 www.cegmupinc.com US Green Building Council Member From: Robinson, Jason <jason.t.robinson@ncdenr.gov> Sent: Tuesday, June 30, 2020 2:22 PM To: Mitch Craig <mitch @CEGROUPINC.COM> Cc: Cashion, Ted <ted.cashion@ncdenr.gov>; Deck, Erin M <erin.deck@ncdenr.gov>; Vinson, Scott <scott.vinson@ncdenr.gov>; Manuel, Vanessa <vanessa.manuel@ncdenr.gov>; Jacob Hudson <jacob@CEGROUPINC.COM>; Mark Ashness <mark@CEGROUPINC.COM>;'bgruesbeck@pittsboronc.gov' <bgruesbeck@pittsboronc.gov>; 'jpoteat@pittsboronc.gov'<jpoteat@pittsboronc.gov> Subject: RE: RE: Mosaic at Chatham Park - Area A fast track application mod, WQ0040955 Thanks for looking into this Mitch. Since there are a few revisions to both the FTA and the FTSE, we will need to have the revised FTA and FTSE signed. We won't be able to issue the permit until we receive and review the newly signed documents. We were curious how Item 6.a was addressed in my earlier email. You may also try contacting the mayor and interim town manager of Pittsboro. Their emails are: 'nass ittsboronc. ov and rmor an ittsboronc. ov ------------ Jason T. Robinson, P.E. Raleigh Regional Office Water Quality Regional Operations NC Division of Water Resources, DEQ 919-791-4200 "Subscribe to Collection System & Sewer Permitting Updates" E-mail correspondence to and from this address may be subject to the North Carolina Public Records Law and maybe disclosed to third parties. Based on the current guidance to minimize the spread of COVID-19, the Department of Environmental Quality has adjusted operations to protect the health and safety of the staff and public. Many employees are working remotely or are on staggered shifts. To accommodate these staffing changes, all DEQ office locations are limiting public access to appointments only. Please check with the appropriate staff before visiting our offices, as we may be able to handle your requests by phone or email. We appreciate your patience as we continue to serve the public during this challenging time. From: Mitch Craig mailto:mitch CEGROUPINC.COM] Sent: Monday, June 22, 2020 5:29 PM To: Robinson, Jason <ason.t.robinson ncdenr,gov>;'bgruesbeck@pittsboronc.gov' <bgruesbeck@gittsboronc.gov>; 'jpoteat@pittsboronc.gov' <jpoteat@pittsboronc.sov> Cc: Cashion, Ted <ted.cashion,@ncdenr.sov>; Deck, Erin M <erin.deck ncdenr. ov>; Vinson, Scott <scott.vinson ncdenr. ov>; Manuel, Vanessa <vanessa.manuel ncdenr. ov>; Jacob Hudson <'acob CEGROUPINC.COM>; Mark Ashness <mark CEGROUPINC.COM> Subject: [External] RE: Mosaic at Chatham Park - Area A fast track application mod, WQ0040955 a email. Domatc�ick ItnksPro pen attachments urlless-yoq Rerify. Send.all suspia aus et ail as an attachr nt to J34� � . Jason, I have forwarded the request for the revised forms to the Town for signature but have not gotten a response (see email attached). See below for answers to your questions. Thanks, Mitch MITCH CRAIG, PE PRINCIPAL I PROJECT MANAGER (0 CE GROUP 301 Glenwood Avenue, Suite 220 Raleigh, NC 27603 Phone: (919) 367-8790 ext.108 Cell: (919) 218-0990 www.Cegroupinc.com (ceerouninc.coml US Green Building Council Member From: Robinson, Jason <fason.t.robinson@ncdenr.eov> Sent: Monday, June 15, 20201:36 PM To: 'bgruesbeck@pittsboronc.gov' <bgruesbeck@Dittsboronc.gov_>; 'jpoteat@pittsboronc.gov' <' oteat ittsboronc. ov>; Mitch Craig <mitch@CEGROUPINC.COM> Cc: Cashion, Ted <ted.cashion@ncdenr.sov>; Deck, Erin M <erin.deck@ncdenr.eov>; Vinson, Scott <scott.vinson@ncdenr.gov>; Manuel, Vanessa <vanessa.manuel@ncdenr.eov> Subject: RE: Mosaic at Chatham Park - Area A fast track application mod, WQ0040955 Importance: High Mr. Poteat & Mr. Craig, We are following -up on the email Ted Cashion sent on May 161h regarding the referenced sewer extension application. Ted had a few initial questions that were not answered, and after a more detailed review, we have more questions. I will list them all here: 1. This application is a modification request to existing permit WQ0040955 issued on Jun3 20, 2019. The narrative does not explain what is being modified. It appears that all the sewer line lengths are staying the same, but this modification is to add flow to the original permit. Is that correct? Yes this is a modification to add flow to the original permit. No line lengths are changing 2. Item V1.7 (flow calcs) shows 12 residential condo units @ 240 GPD. Are these all one or two bedroom units? Most of them are 1 & 2 bedroom but there is one 3 bedroom unit that I will need to adjust the numbers for will revise the application and submit a new one. 3, The narrative states that Phase 1 of this project include 47,950 GPD, and goes on to say the total estimated Daily Design flow is 175,000 GPD. Will this additional flow be included in future applications? Yes. The final number will likely be less than 275,000 GPD, Item IX.6 has "No" checked for high priority lines. However, the submittal included a document for "25-year Calcs for Aerial Sewer Crossing", so it appears that this project has an aerial crossing that would be a high - priority line. Please address this. I will revise the application to include the high -priority for the aerial crossing. a. Also, Item IX.4 was checked "No" for 404/401 permit needed for this project. Since this project is almost 4,000 LF, and it appears it includes an aerial crossing of a stream, please confirm that a 404/401 permit is not needed for any portion of this project. A 401/404 permit is not needed for any portion of this project. Item Lf of the Flow -Tracking Sheet (FTSE) shows "0" flow for this request. This will need to be modified to show the correct flow request. The request has been sent to the Town and we will resubmit a revised FTSE form. 6. Item II of the Flow -Tracking (FTSE) appears to have some errors. It appears that the Firm Capacity (.012) and Design Average Daily Flow (.030) are switched (Column A should be the firm capacity divided by the peaking factor). a. If these are switched to the correct columns, it appears that the CLLC PS may not have the capacity to accept the new flow included in this modification application (Column E). Please address this. I am working on addressing this and will have an answer when we resubmit. Will this flow that will currently be going to the Pittsboro plant be routed to the Chatham Park WWTP in the future? PBD plant until The CLLC LS is upgraded Please respond to each of the above guestions via email. After written responses are received we can decide if what needs to be modified in the apalication and resubmitted. ------------ Jason T. Robinson, P.E. Raleigh Regional Office Water Quality Regional Operations NC Division of Water Resources, DEQ 919-791-4200 "Subscribe to Collection „System & Sewer Permitting Updates" E-mail correspondence to and from this address may be subject to the North Carolina Public Records Law and may be disclosed to third parties. Based on the current guidance to minimize the spread of COVID-19, the Department of Environmental Quality has adjusted operations to protect the health and safety of the staff and public. Many employees are working remotely or are on staggered shifts. To accommodate these staffing changes, all DEQ office locations are limiting public access to appointments only. Please check with the appropriate staff before visiting our offices, as we may be able to handle your requests by phone or email. We appreciate your patience as we continue to serve the public during this challenging time. From: Cashion, Ted Sent: Saturday, May 16, 202011:35 AM To: 'bgruesbeck@pittsboronc.gov'<beruesbeckC@gittsboronc.gov>;'jpoteat@pittsboronc.gov' <' oteat ittsboronc. ov>; mitch (mitch CEGROUPINC.COM) <mitch CEGROUPINC.COM> Cc: Robinson, Jason <iason.t.robin son@ncdenr.gov> Subject: Mosaic at Chatham Park - Area A fast track application mod, WQ0040955 We have received the subject application to modify permit WQ0040955. We have a few questions after a cursory review of the application. The FTSE form signed by Bryan Gruesbeck shows the total flow for this specific request as'0' (item Lf). According to the application, 47,950 gpd will be tributary to the Pittsboro WWTP. Please have Bryan Gruesbeck complete and sign a corrected FTSE form showing the correct flow for this request. The USE form shows the CLLC PS with a firm capacity of 0.012 mgd, and a Design Average Daily Flow of 0.030 mgd. It appears these values may be reversed. Please review and correct the values and calculations as needed. Also, will any of the flow generated in this project be tributary to the Chatham Park WWTP now or in the future? Ted Cashion Water Quality Regional Operations Division of Water Resources NC Department of Environmental Quality Raleigh Regional Office 919-791-4254 ted.cashion@ncdenr.gov 1628 Mail Service Center Raleigh, NC 27699-1628 3800 Barrett Drive Raleigh, NC 27609 roor r+ DEQ� Owiwrie r h.rrrrsr prh� Subscribe to Collection System & Sewer Permitting Updates Email correspondence to and from this address may be subject to the North Carolina Public Records Low and may be disclosed to third parties unless the content is exempt by statute or other regulation.