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HomeMy WebLinkAboutWQ0018753_Application_20030730FAST -TRACK APPLICATION for GRAVITY .,SEWERS, PUMP STATIONS, AND FORCE MAINS PAGE 3 Y USE THE TAB KEY TO MOVE FROM FIELD TO FIELD! Application Number: � (to be completed by DWQ) '�Q 0 1. Owner: _-__—_-_ ___----------_�—.__. 1 a. Town of Polkton Full Legal Name (company, municipality, HOA, utility, etc.) Z 1 b. Libby Cameron, Town Manager O Signing Official Name and Title (Please review 15A NCAC 2H .0206(b) for authorized signing officials!) Q1 c. The legal entity who will own this system is: < ❑ Individual ElFederal ® Municipality ❑ State/County ElPrivate Partnership ElCorporation ElOther (specify): C 1 d. P.O. Box 99 1 e. Polkton 0 Street Address City LL Z 1f. North Carolina 1g. 28135 Z State Zip Code 0 _ 1 h. 704-272-7463 1 i. 1 j. QTelephone Facsimile E-mail () 2. Project (Facility) Information: J a 2a. U.S. 74 Sanitary Sewer Improvements 2b. Anson County IL Brief Project Name (permit will refer to this name) County Where Project is Located Q 3. Contact Person: Q 3a. James M. Dennis, PE, PLS Name and Affiliation of Someone Who Can Answer Questions About this Application 3b. 704-575-3852 3c. idennis@mulkevi Phone Number . ...... _ _....... ........... __.. _. ..... .....- 1. Project is ❑ New ® Modification (of an existing permit) E-mail .com If Modification, Permit No.: W00018753 For modifications, attach a separate sheet clearly explaining the reason for the modification (i.e. adding another phase, changing line size/length, etc.). Only include the modified information in this permit application - do not duplicate project information in B(7) and B(10-11) that has already been included in the original permit. 2. Owner is ® Public (skip to Item B(3)) ❑ Private (go to Item 2(a)) 2a^If private, applicant will be — _ 2b. If sold, facilities owned by a (must choose one) 003223 FIRST BANK TOWN OF POLKTON POLKTON, NORTH CAROLINA 28135 PH. 704-272-7463 3223 P.O. BOX 99 / 113 W. POLK ST. 66-456/531 POLKTON, NC 28135 Q 0 This instrument has been preaudited in the mannerrequired by the Local Government Budget and Fiscal Control Act. Provision for the payment of moneys to fail due under this agreement has been made by the appropriation duly authorized as required by the Local Government Finance Act. 07--17-2003 $400. 00 PAY' DATE AMOUNT TO THE Four Hundred Dollars and 00 Center ORDER OF DEPT OF ENVIR & NAT RESOURCES 1634 MAIL SERVICE 'CENTER RALEIGH NC 21699-1634 r A AU ORI DSIGNATURE 11' Interceptor Line - Flow will be permitted is subsequent permits that connect to this line ❑ Flow has already been allocated in Permit No. ❑ Rehabilitation or replacement of existing sewer with no new flow expected FTA 02/03 -Rev. 1 06/03 FAST -TRACK APPLICATIONxfor GR,AVITk SEWFRSj PUNIP STATIONS, AND FORCE MAINS PAGE 1 OF W ATFR 1 State of North Carolina Department of Environment and Natural Resources 5 1LLa\ Division of Water Quality a� -- FAST -TRACK APPLICATION for GRAVITY SEWERS, PUMP STATIONS, AND FORCE MAINS (Pressure sewers systems are not to be included as part of this application package) INSTRUCTIONS: Indicate that you have included the following list of required application package items by checking the space provided next to each item. Failure to submit all required items will lead to your application being returned as incomplete or additional processing and review time. This form may be photocopied for use as an original. ® I. Application Form - Submit one original and one copy of the completed and appropriately executed application form. Any changes to this form will result in the application being returned. The Division of Water Quality (Division) will only accept application packages that have been fully completed with all applicable items addressed. You do not need to submit detailed plans and specifications unless you respond NO to Item B(12) ® II. Application Fee - Submit a check in the amount of $400 made payable to: North Carolina Department of Environment and Natural Resources (NCDENR). ❑ III. Certificates of Public Convenience and Necessity — If the application is being submitted in the name of a privately -owned public utility, submit two copies of the Certificate of Public Convenience and Necessity (CPCN) which demonstrates that the public utility is authorized to hold the utility franchise for the area to be served by the sewer extension. If a CPCN has not been issued, provide two copies of a letter from the North Carolina Utilities Commission's Public Staff that states that an application for a franchise has been received, that the service area is contiguous to an existing franchised area, and/or that franchise approval is expected. The project name in the CPCN or letter must match that provided in Item A(2a) of this application. ❑ IV. Operational Agreements — Submit one original and two copies of a properly executed operational agreement if the sewer extension is permitted by a private applicant and will be serving residential or commercial lots (e.g., houses, condominiums, townhomes, outparcels, etc.) that will be sold to another entity. If the applicant is a homeowners' association, use Form HOA 02/03. If the applicant is a developer, use Form DEV 02/03. EVEN IF THE PROJECT WILL BE TURNED OVER TO A MUNICIPALITY, FORM DEV 02/03 IS REQUIRED. ❑ V. Flow Acceptance Letters — If the owner of the downstream sewers and/or WWTF is different from the applicant, submit two copies of a flow acceptance letter from the owner of the downstream sewers and WWTF, if different. Flow acceptance letters must contain the following minimum information: applicant and project name, amount of flow accepted, and name and permit number of the receiving sewers/WWTF. The flow acceptance must not expire prior to permit issuance and must be dated less than a year prior to the application date. Intergovernmental agreements or other contracts will not be accepted in lieu of a project -specific flow acceptance letter. ® VI. Map — Submit an 8.5-inch by 11-inch COLOR copy of the portion of a 7.5-minute USGS Topographic Map along with this form. The map should identify the entire project area location as well as the closest downslope surface waters as clearly as possible. Each map portion must be labeled with the map name and number, the identified location of the sewer line and pump stations, and be of clear and reproducible quality. For instance, if the project involves 4 miles of interceptor sewer that traverses over or near several different waterbodies (or counties, basins, etc.), the map should have location ID's shown for each different waterbody (where the sewer line is within 100 feet of such waterbody - see Instruction VII). This location ID is self chosen and used to cross reference the location in Section C of the permit application. ❑ VII. Stream Classifications — Section C • If any portion of the project is within 100 feet of any down slope surface water, Section C must be completed for the pertinent sections. • If the entire project area is a minimum of 100 feet away from any down slope surface waters BUT there is a pump station involved where a history of power outage is to be used to provide adequate design storage instead of dual feed or permanent or portable generator, Section C must be completed to demonstrate that the closest down slope surface water is Class C (see 15A NCAC 2H .0219(h)(3)(D)). • Use the guidance document entitled, "Determining Watershed Classifications for Form FTA 02/03 (Fast -Track Sewer Systems)" available from http://h2o.enr.state.nc.us/ndpu or by contacting the appropriate regional office. FTA 02/03 - Rev. 1 06/03 FAST -TRACK APPLICATIONJor GR,AVIT`46EWWRS, PUMP STATIONS, AND FORCE MAINS PAGE 2 ❑ Vill. Environmental Assessments — If this project is subject to an Environmental Assessment (EA) [15A NCAC 01 C .0500], this application can not be used. Send the project application on Form PSFMGSA 10/99 to the Non -Discharge Permitting Unit, 1617 Mail Service Center, Raleigh, NC 27699-1617. Applications can not be processed until a Finding of No Significant Impact (FONSI) or Environmental Impact Statement (EIS) has been issued. A copy is to be submitted with that permit application. ® IX. Certifications — Section D The application must be certified by both the applicant and a North Carolina Registered Professional Engineer (PE). The applicant signature must match the signing official listed in Item A(1 b). The PE should NOT certify the application if he/she is unfamiliar with 15A NCAC 2H .0200, the Gravity Sewer Minimum Design Criteria (most recent version) and the Minimum Design Criteria for the Fast -Track Permitting of Pump Stations and Force Mains (most recent version), as applicable to the project. Certification by a PE who is unfamiliar with these documents is subject to NC Board referral. THE COMPLETED FTA 02/03 APPLICATION PACKAGE, INCLUDING ALL SUPPORTING DOCUMENTS AND $400 FEE, SHOULD BE SENT TO THE APPROPRIATE REGIONAL OFFICE REGIONAL OFFICE ADDRESS COUNTIES SERVED Asheville Regional Office Avery, Buncombe, Burke, Caldwell, 59 Woodfin Place Cherokee, Clay, Graham, Haywood, Asheville, North Carolina 28801 Henderson, Jackson, Macon, (828) 251-6208 Madison, McDowell, Mitchell, Polk, (828) 251-6452 Fax Rutherford, Swain, Transylvania, Yancey Fayetteville Regional Office 225 Green Street Suite 714 Fayetteville, North Carolina 28301 Anson, Bladen, Cumberland, Harnett, (910) 486-1541 Hoke, Montgomery, Moore, Robeson, (910) 486-0707 Fax Richmond, Sampson, Scotland Mooresville Regional Office 919 N Main Street Moor N Mooresville, North Carolina 28115 Alexander, Cabarrus, Catawba, 66ille, Cleveland, Gaston, Iredell, Lincoln, (704) 663-6040 Fax Mecklenburg, Rowan, Stanly, Union Raleigh Regional Office 1628 Mail Service Center Chatham, Durham, Edgecombe, Raleigh, North Carolina 27699-1628 Franklin, Granville, Halifax, Johnston, (919) 571-47 Lee, Nash, Northampton, Orange, (919) 571-4718 Fax Person, Vance, Wake, Warren, Wilson Washington Regional Office Beaufort, Bertie, Camden, Chowan, 943 Washington Square Mall Craven, Currituck, Dare, Gates, Washington, North Carolina 27889 Greene, Hertford, Hyde, Jones, (252) 946-6481 Lenoir, Martin, Pamlico, Pasquotank, (252) 975-3716 Fax Perquimans, Pitt, Tyrrell, Washington, Wayne Wilmington Regional Office 127 Cardinal Drive Extension Wilmington, North Carolina 28405 Brunswick, Carteret, Columbus, (910) 395-3900 Duplin, New Hanover, Onslow, (910) 350-2004 Fax Pender Winston-Salem Regional Office 585 Waughtown Street Alamance, Alleghany, Ashe, Caswell, Winston-Salem, North Carolina 27107 Davidson, Davie, Forsyth, Guilford, (336) 771-4600 Rockingham, Randolph, Stokes, (336) 771-4631 Fax Surry, Watauga, Wilkes, Yadkin For more information, visit our web site at: http://h2o.enr.state.nc.us/ndpu/ FTA 02/03 - Rev. 1 06/03 FAST -TRACK APPLICATION�for GR,AVITY*SEWj~RS, PUMP STATIONS, AND FORCE MAINS PAGE 3 i Z _0 F— Q 0 LL Z F— LU a T USE THE TAB KEY TO MOVE FROM FIELD TO FIELD! Application Number: (to be completed by DWQ) 1. Owner: 1 a. Town of Polkton Full Legal Name (company, municipality, HOA, utility, etc.) 1 b. LibbyCameron, Town Manager Signing Official Name and Title (Please review 15A NCAC 2H .0206(b) for authorized signing officials!) 1c. The legal entity who will own this system is: El Individual El Federal ® Municipality ElState/County El Private Partnership El Corporation ❑ Other (specify): 1 d. P.O. Box 99 1 e. Polkton Street Address City 1f. North Carolina 1g. 28135 State Zip Code 1 h. 704-272-7463 1 i. 1 j. Telephone Facsimile E-mail 2. Project (Facility) Information: 2a. U.S. 74 Sanitary Sewer Improvements 2b. Anson Count Brief Project Name (permit will refer to this name) County Where Project is Located 3. Contact Person: 3a. James M. Dennis, PE, PLS Name and Affiliation of Someone Who Can Answer Questions About this Application 3b. 704-575-3852 3c: idennis@mulkeyinc.com Phone Number E-mail ....... - ..._...... _ .... _.._ . __ .. ... 1. Project is ❑ New ® Modification (of an existing permit) If Modification, Permit No.: W00018753 For modifications, attach a separate sheet clearly explaining the reason for the modification (i.e. adding another phase, changing line sizellength, etc.). Only include the modified information in this permit application - do not duplicate project information in B(7) and B(10-11) that has already been included in the original permit. 2. Owner is ® Public (skip to Item 8(3)) ❑ Private (go to Item 2(a)) 2a. If private, applicant will be: 2b. If sold, facilities owned by a (must choose one ❑ Retaining Ownership (i.e. store, church, single office, etc.) or ❑ Public Utility (Instruction III) El Leasing units (lots, townhomes, etc. - skip to Item 8(3)) ❑ Homeowner Assoc./Developer (Instruction IV) El Selling units (lots, townhomes, etc. - go to Item B(2b)) �Owner of Wastewater Treatment Facility (WWTF) Treating Wastewater From This Project 4a. Anson County WWTF 4b. NC0041408 Name of WWTF_ WWTF Permit No. _ 5a. Townf P oolkton - Sb. 8" BSc. W00018753 Owner of Downstream Sewer Receiving Sewer Size Permit Number of Downstream Sewer (if known) 6. The origin of this wastewater is (check all that apply): El Residential Subdivision ® Car Wash ElApartments/Condominiums ❑ Institution 100 % Domestic/Commercial ❑ Mobile Home Park ❑ Hospital ❑ School El Church % Industrial ❑ Restaurant [I Nursing Home ❑ Office ❑ Other (specify): %Other (specify): 7. Volume of wastewater to be permitted in this project: 5,760 gallons per day 8. If the permitted flow is zero, indicate why: El interceptor Line - Flow will be permitted is subsequent permits that connect to this line [I Flow has already been allocated in Permit No. ❑ Rehabilitation or replacement of existing sewer with no new ow expected fl (........................ Ff A 02/03 - Rev. 1 06/03 . FAST -TRACK APPLICATIONjor GR,AV1T3iSEWERS, PUMP STATIONS, AND FORCE MAINS PAGE 4 9. Provide the wastewater flow calculations used in determining the permitted flow in accordance with 15A NCAC 2H .0219(I) for Item B(7) or the design flow for line or pump station sizing if zero flow in the space below. Values other than that in 15A NCAC 2H .0219(1)(1-2) must be approved prior to submittal of this application. Submit a separate request to the Division of Water Quality, Non -Discharge Permitting Unit, 1617 Mail Service Center, Raleigh, NC 27699-1617 in accordance with 15A NCAC 2H .0219(1)(3). 60 gallons/vehicle (International Car Wash Association & from "Water Use in the Professional Car Wash Industry & Car Wash Association", Chris Brown, 2002. Using 4 bays with 24 vehicles/bay/day you get: 4x24x60 = 5,760 gal/day 10. Summary of Sewer Lines to be Permitted (attach additional sheets if necessary) Size (inches) 11 Length (feet) Gravity or Force Main (use the pull down menu) 294 Gravity W D Z f— Z O U Z ENTER TOTAL LINE LENGTH IN MILES 0.0557 miles O Q11. Summary of Pump Stations to be Permitted (attach additional sheets as necessary) 2 Location ID Power Reliability Option (self chosen - as shown on Design Flow Operational Point (1- dual line feed; 2- permanent generator w/ATS; 3- 0 plans for cross-reference) (MGD) GPM @ TDH portable generator w/telemetry; 4-wet well storage) Z F— W d 12. Does the sewer system comply with the Minimum Design Criteria for the Fast Track Permitting of Pump Stations and Force m Mains (latest version), the Gravity Sewer Minimum Design Criteria (latest version) and 15A NCAC 2H .0200 as applicable? Z Yes ❑ No If no, please reference the pertinent minimum design criteria or regulation and indicate why a variance is requested: SUBMIT TWO COPIES OF PLANS, SPECIFICATIONS OR CALCULATIONS PERTINENT TO THE VARIANCE WITH YOUR APPLICATION 13. Have the following permits/certifications been submitted for approval? Wetland/Stream Crossings - General Permit or 401 Certification? [:]Yes []No Z WA Sedimentation and Erosion Control Plan? ❑ Yes ❑ No Z N/A Stormwater? ❑ Yes ❑ No Z N/A FTA 02/03 - Rev. 1 06/03 FAST -TRACK APPLICATION,for GR,AVITI#EWF,RS, PUMP STATIONS, AND FORCE MAINS PAGE 5 Z _O F- Q U u) W Q J U Q W F— r4k u W Use the Division's guidance document entitled, "DETERMINING STREAM CLASSIFICATIONS FOR FORM FTA 02/03 (FAST -TRACK SEWER SYSTEMS)" to collect and record the stream classification data below (attach additional sheets as necessary). This document is available from our web site or by contacting the appropriate Division of Water Quality regional office (see instructions for addresses) OR indicate the following: ® A Stream Classification is not needed because all parts of the project are at least 100 feet away from any down slope waterbody; AND, ® A Stream Classification is not needed because the design does not depend on wet well storage as a power reliability option for any pump station near a Class C down slope waterbody. Location ID on Map (self chosen - as shown on Name of map for cross-reference) Waterbody County Waterbody Stream Waterbody River Basin Index Classification Submit the 8.5" x 11 " COLOR topographic map as required in Instruction VI regardless of whether a classification is provided! 1. Applicant's Certification: 1, Libby Cameron, attest that this application for U.S. 74 Sanitary Sewer Improvements 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. Note: In accordance with North Carolina General Statutes 143-215.6A and 143-215.6B, any person who knowingly makes any false statement, representation, or certification in any application 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 $25,0 per violation. 1 a. Signing Official SignaN 2. Professional Engineer's Certification: Date I attest that this application for the Town of Polkton has been reviewed by me and is accurate, complete and consistent with the information in the engineering plans, 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 adopted February 12, 1996, and the Minimum Design Criteria for the Fast -Track Permitting of Pump Stations and Force Mains adopted June 1, 2000 and the watershed classification in accordance with Division guidance. Although certain portions of this submittal package may have been developed by other professionals, 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 NC General Statutes 143-215.6A and 143-215.6B, any person who knowingly makes any false statement, representation, or certification in any application 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. 2a. James M. Dennis, PE, PLS Professional Engineer Name 2b. Mulkey Engineers and Consultants Engineering Firm 2c. 7516 East Independence Blvd. — Suite 100 Address 2d. Charlotte City 2g. 704-537-7300 Telephone 2h. 704-537-2811 Facsimile 2e. NC 2f. 28227 State Zip 2i. idennis@mulkeyinc.com E-mail "4111111trtrti *, �N CARci M M;pE ���•` Seal, Signature & Date FTA 02/03 - Rev. 1 06/03 ,;UL 18 2003 Town of Polkton U.S. 74 Sewer Improvements Anson County North Carolina SEWER SPECIFICATIONS July 2003 r ,' Addendum The modification is required due to changes in the previous U.S. 74 Sanitary Sewer Improvements project (Permit No. WQ0019753). The modifications include a manhole location change and a grade revision (See plan and profile). r •- Utility Construction Sewer Town of Polkton U.S. 74 Sewer Improvements DESCRIPTION The work covered by these provisions consists of constructing utilities as required by the plans and provisions herein or as directed by the Engineer, The Contractor shall furnish any and all materials, labor, equipment, and incidentals necessary to complete the proposed utility work. II. GENERAL CONSTRUCTION REQUIREMENTS Specifications: The proposed utility construction shall meet the applicable requirements of the NC Department of Transportation's "Standard Specifications for Roads and Structures" dated January 2002, all applicable permits, and the standard details as shown on the plans, as outlined in the following provisions, or as directed by the Engineer. Existing Utilities: The Contractor will be required to excavate to determine the precise location of utilities, or other underground obstructions, which are shown on the Construction Plans. Such location and excavation shall be at least 500 feet ahead of construction or as noted in the Special Provision Section of this document. All utility owners will be notified prior to excavation as required by the 1985 Underground Damage Prevention Act, Owners who are members of NC One -Call may be notified in accordance with current NC One -Call procedures. The Contractor will be fully responsible for damage to any utilities if the owners have not been properly notified as required by the Underground Damage Prevention Act. Utility owners may, at their option, have representatives present to supervise excavation in the vicinity of their utilities, The cost of such supervision, if any, shall be borne by the Contractor. Conflicts with underground utilities may necessitate changes in alignment and/or grade of this construction. All such changes will be approved by the ENGINEER before construction proceeds. When underground obstructions not shown on the Construction Plans are encountered, the Contractor shall promptly report the conflict to the ENGINEER and shall not proceed with construction until the conflict is resolved by the ENGINEER. Sanitary Sewer Pipe: PVC Pipe: a. Solid Wall PVC: Unless amended on the construction drawings or elsewhere in these specifications, sewer pipe 4-inches through 15-inches in diameter may be Poly Vinyl Chloride (PVC) sewer pipe with a Standard Dimension Ratio (SDR) of 35, and shall meet all requirements of ASTM Specification D-3034. Sewer pipe 18- inches through 27-inches in diameter may be Polyvinyl Chloride Pipe (PVC) large diameter sewer pipe with a minimum pipe stiffness of 46 PSI in accordance with ASTM Specification F-679. Pipe joining shall be push on elastomeric joints only and joints shall be manufactured in accordance with ASTM Specification D-3212. The pipe shall be furnished with integral bells and with gaskets that are permanently installed at the factory. The pipe shall be furnished in nominal lengths of 13 feet. PVC sewer pipe shall be green or white in color. PVC pipe shall contain the markings required by ASTM D-3034 or F-679 as applicable. The manufacturer shall submit certification that the pipe has been tested in accordance with ASTM D-3034 or F-679 as applicable and has been found to meet all requirements. Test samples shall be as selected by the manufacturer or testing laboratory unless otherwise stipulated in the Special Provision Section of these specifications. Fittings shall be in accordance with ASTM D-3034, F-679, and/or D-3212 as applicable, with stiffness and wall thickness equal to or greater than the pipe. Adapters shall be provided to join different materials. b. PVC Profile Gravity Sewer Pipe: Unless amended on the construction drawings or elsewhere in these specifications, sewer pipe 8-inches through 48-inches may be PVC profile gravity sewer pipe manufactured in accordance with the requirements of ASTM F-794. The minimum pipe stiffness shall be 46 PSI. All seams on the completed pipe shall be thermally fused. Glued seams will not be allowed. The pipe shall be produced with integral bell and spigot end construction with elastomeric seals and shall conform to all requirements of ASTM D-3212. Joining shall be by rubber gaskets that conform in all respects to the physical requirements specified by ASTM F-477 for low head applications. The lubricant used for assembly shall be as recommended by the manufacturer and shall have no detrimental effect on either the pipe or the rubber gasket. The average nominal inside diameter and manufacturing tolerance shall be as listed for stiffness Series 46 in Table IA for open profile pipe and Table IB for closed profile pipe of ASTM F-794. The pipe shall be furnished in nominal lengths of 13 feet and shall contain all markings required by ASTM F-794. One sample of each size pipe specified, from the production runs for this project, shall be tested in accordance with the requirements of ASTM F-794. The manufacturer shall furnish certification that the pipe was manufactured, sampled, tested and inspected in accordance with and has been found to meet the requirements of ASTM F-794 in all respects. Fittings shall be in accordance with ASTM F-794, D-3212, and/or D-3034 as applicable, with stiffness and wall thickness equal to or greater than the pipe. Adapters shall be provided to join different materials. c. PVC Corrugated Sewer Pipe: Unless amended on the construction drawings or elsewhere in these specifications, sewer pipe 8-inches through 18-inches may be Polyvinyl Chloride Corrugated Sewer Pipe with a smooth interior, manufactured in accordance with ASTM F-949. The pipe shall be produced with integral bell and spigot construction with elastomeric seals and shall conform to all requirements of ASTM D-3212. Joining shall be by rubber gaskets that conform to the requirements to ASTM F-477. The pipe shall be furnished in nominal lengths of 12.5 feet and shall contain all markings required by ASTM F-949. One sample of each pipe size specified, from the production runs of this project, shall be tested in accordance with the requirements of ASTM F-949. The manufacturer shall furnish certification that the pipe was manufactured, sampled, tested, and inspected in accordance with and has been found to meet the requirements of ASTM F-949 in all respects, Fittings shall be in accordance with ASTM F-949, D-3034, and/or D-3212 as applicable, with stiffness and wall thickness equal to or greater than the pipe. Adapters shall be provided to join different materials. 4-Inch Sanitary Sewer Laterals: All 4-inch laterals shall be SDR 35 PVC, Schedule 40 PVC, Ductile Iron, or Cast Iron Soil Pipe. SDR 35 PVC and ductile iron laterals shall be as hereinbefore specified. 4-inch laterals may connect at manholes or tees. Schedule 40 PVC: Schedule 40 PVC laterals shall be in accordance with ASTM D-2665, NSF 14, and D-1785. Fittings shall be socket type in accordance with ASTM D-2466. Joining shall be through solvent cement in accordance with ASTM D-2564. Couplings/Saddles: Couplings used to join various types of 12-inch and smaller pipe shall be elastometric PVC sleeve couplings with stainless steel compression bands and stainless steel shear rings. Couplings for 12-inch and smaller pipe may also be elastomeric PVC with internally molded rigid fiberglass insert and stainless steel bands. The coupling shall provide a water and/or gas tight connection. Saddles for lateral connections shall be ABS Plastic, PVC, Elastomeric PVC, or approved equivalent. Saddles shall be connected to PVC pipe using a flat or profile gasket, as applicable to the type of pipe, and at least two stainless steel bands around the pipe and saddle. The lateral shall be connected to the saddle with a compression gasket, solvent weld adapter, and/or stainless steel band, as applicable. Manholes: All sewer manholes shall be constructed of precast concrete sections only in conformance with the following specifications and Standard Detail Drawings. Special cast in place manhole structures shall be as shown on the plans and shall comply with the various other applicable sections in these specifications. r , t Manholes will be furnished with the following clear inside diameters according to the sewer main diameter unless amended by the Plans or Special Provisions: 8" to 18" pipe 4' Manhole 21 " to 36" pipe 5' Manhole 39" to 54" pipe 6' Manhole 54" and larger 8' Manhole The manhole diameter for a given pipe size may be increased from that shown above for applications where the angle between the influent and effluent pipes precludes proper installation of the pipe connections in the standard size manhole. Manholes shall be furnished with pre -cast bottom slabs and flexible watertight boots for 15-inch and smaller pipe. The boots shall be cast in as integral parts of the base or installed in cored openings with stainless steel compressions bands, and shall conform to ASTM C-923. Manholes for 18-inch and larger pipe may be furnished with pre -cast bottom slabs and flexible boots, flexible seals, or concrete collars. The flexible seals shall be A-Lok or Contour Seal. Flexible connectors shall conform to ASTM C-923. The concrete collars shall be according to the applicable Standard Detail. Manholes to be placed over existing pipelines shall be furnished with "doghouse" openings cast in the bottom section allowing it to be set over the existing pipe. A concrete base and invert shall be poured around the bottom section and the pipe according to the applicable Standard Detail. Shop drawings which show dimensions, openings for pipe, reinforcing steel dimensions and layout and other essential details shall be submitted for approval. Pre -cast Reinforced Concrete Manhole Sections: All pre -cast reinforced concrete manholes shall conform to CMUD Standard Detail drawings and to ASTM C-478. The following minimum standards shall also apply: a. Wall thickness shall be 1 / 12rh of the inside diameter with a minimum thickness of five (5") inches. b. Base sections shall be cast monolithically or have a waterstop cast in the cold joint between the walls and the base slab. c, Cone sections shall normally be eccentric with the inside face of one side vertical and flush with the inside face of the barrel section. Eccentric cones with bolt down frame and cover shall have a minimum vertical height, as measured from the top of the cone to the bottom of the bell, of 32-inches. Eccentric cones without bolt down frame an cover to be installed flush to finish grade may have a minimum vertical height of 24- inches. Concentric cones with a vertical height of 20-inches may be used on manholes less than five (5') feet deep (4' diameter manhole only). Transition cone sections may be provided for an eccentric transition from a 60-inch riser to a 48-inch cone section to be placed directly beneath the 48-inch cone. d. Transition slabs may be placed a minimum of five (5) feet above the invert shelf for six (6) feet and larger diameter manholes where the slab will be buried. Flat top slabs may be used for six (6) feet and larger diameter manholes, unless the manhole is located within pavement or maintained lawns. e. Joints between sections shall be manufactured in accordance with ASTM C-443. Joints may be sealed with rubber gaskets in accordance with ASTM C-443 or with butyl rubber sealants conforming to Federal Specification SS-S-210A and AASHTO M-198, Type B. f. All markings required by ASTM C-478 shall be clearly stamped on the inside of each section. g. Aggregate shall be sound, crushed, angular granitic stone only, substantially in accordance with ASTM C-33, except that the requirement for graduation in that standard shall not apply. Smooth or rounded stone (river rock) shall not be acceptable. h. The cement shall be Type II with a maximum tricalcium aluminate (3CaOAl2O3) content 8%. In lieu of Type II cement and granitic aggregate, pre -cast manhole sections may be furnished of Type III cement with calcareous (limestone) aggregate. The manufacturer will submit lab tests certifying the amount of Alkalinity (minimum 78%) present in the complete mix. i. Manhole riser sections, transition slabs, flat top slabs, and cone sections shall be designed for H-20 loadings. j. The manufacturer shall furnish the Engineer with test results on compression and absorption for one section in every twenty-five sections poured, and certification from cement manufacturer and aggregate supplier certifying chemical content. The Engineer reserves the right to pick random sections for the required testing. 2. Steas: Manhole steps will be furnished in accordance with Standard Detail Drawings ASTM C-478 and current OSHA regulations. In addition to the testing requirements of ASTM C-478 each step installed in pre -cast manholes will be tested to resist a 1000 lb. pullout. The manhole manufacturer will furnish certification of each test with each shipment showing manhole location, date of test, and results, 3. PVC Liner: Where indicated on the plans or elsewhere in these specifications, manholes shall be furnished with a PVC Liner for resistance to corrosive sewers. The liner shall be as hereinbefore specified for RCP. Concrete: Portland Cement: All concrete shall conform to the Standard Specifications for READY MIXED CONCRETE, ASTM C-94. An air -entraining admixture, conforming to ASTM C-260, shall be added to either Type I, Type II, or Type III Portland Cement. Fly Ash conforming to ASTM C-618 for Class C Fly Ash may be added to the concrete mix but shall not be considered as replacement for more than 10% of the cement therein (strengths shall not be less than hereinafter required). Types I, IA, III and IIIA Portland Cement shall only be used for manhole inverts, concrete encasement, concrete blocking, and/or as directed by the Engineer, and shall conform to ASTM C-150. Types II and IIA Portland Cement shall be used in pre -cast manholes, cast in place manhole structures, reinforced concrete pipe, reinforced concrete piers and concrete or reinforced concrete rip -rap as directed by the Engineer, and shall conform to ASTM C-150 except that Tricalcium Aluminate (3CaOAl2O3) content shall not exceed 8%, Aggregates: All aggregates used for concreting shall conform to ASTM C-33 and shall be checked daily for any variances in moisture content. Said variances shall be corrected and/or taken into consideration for each batch. a. Course Aggregates: Shall be uniformly and evenly graded for each application in accordance with A.C.I. Standard 318. Unless otherwise approved, aggregate shall be sound, crushed, angular granitic stone. Smooth or rounded stone (river rock) shall not be acceptable. b. Fine Aggregates: Shall consist of natural sand, manufactured sand or a combination thereof. Fine aggregates shall conform to the sieve analysis as specified in paragraph 4.1 of the standard except that the percent passing a No. 50 sieve shall not exceed 5% and the percent passing a No. 100 sieve shall be 0% as provided for in paragraph 4.2 of the standard. 3. Mix Design: Concrete shall be watertight, resistant to freeze -thaw cycles and moderate sulfate attack, abrasion resistant, workable, and/or finishable. These qualities may be met through the use of admixtures (if and only if approved in the mix design as hereinafter specified) conforming to the appropriate ASTM with the exception of the use of calcium chloride, which shall be limited to no more than 1 % by cement weight - thoroughly mixed to insure uniform distribution within the mix, If the concrete is used with reinforcing steel, no calcium chloride will be allowed. The Contractor shall assume responsibility for concrete mixture. The concrete shall be proportioned to meet the following requirements: (Note: The mix does not apply "in total" to pre -cast manhole or reinforced concrete pipe). A. Compressive Strength Maximum 3600 PSI B. Water -Cement Ratio by Weight Maximum 0.50 C. Slump Min. 3" Max. 5" D. Air Content (Entrained & Entrapped) Min. 4% Max. 6% E. Coarse Aggregate 3/4" - 1 1 /2 (as required by the application) When required by the Engineer, and prior to beginning construction, the Contractor, at his expense, shall obtain from an approved commercial testing laboratory a design for a suitable concrete mix and submit same with his list of materials and material suppliers for approval. 4. Curing Compound: All concrete curing compounds shall conform to the standard specifications for LIQUID MEMBRANE - FORMING COMPOUNDS FOR CURING CONCRETE, ASTM C-309, Type 2. Curing compounds shall be applied as forms are stripped. 5. Grouts: All grouts shall be of a non -shrink nature (as may be achieved through additives or proportioning) and depending upon application range from plastic to flowable cement water paste. Testing as specified above for concrete may be required for acceptance of grouts to include frequent checks for consistency by a time -of -flow measurement. Acceptable range of testing requirements: Compressive Strength 10,500 to 12,500 PSI Bond Strength 1,350 to 1,700 PSI % Expansion +.025% to +0,75% Expansion grouts shall be used only as directed by the Engineer. Grouts shall be mixed (if applicable) and placed in accordance with the manufacturer's current recommendations, for each specific application. 6. Mortar: Mortar used in sanitary sewer manholes shall be hydraulic cement mortar in accordance with ASTM C-398. Mortar used in water meter vaults and water valve vaults shall be Type M mortar in accordance with ASTM C-270. Stone and Brick: 1. Granular Bedding Material: All bedding material shall be angular, clean washed crushed stone graded in accordance with Size # 67 in ASTM D-448 for "Standard Sizes of Coarse Aggregate", (NCDOT Standard size # 67). Bedding material will be used only as instructed in the Specifications and/or as specifically directed by the Engineer. 2. Brick: All brick used to construct manhole inverts or adjust frames shall be made from clay or shale, shall be solid only and shall be of standard building size. All brick shall meet or exceed the compressive strength and water absorption properties specified in ASTM C-32 for Grade MS brick or in ASTM C-216 and ASTM C-62 for Grade SW brick. Ferrous Castings: 1. Soecial Castings: All cast iron pipe fittings and special castings shall be furnished in weight, classes, and/or special thickness as specified elsewhere. The castings shall conform to ASTM A-126 and shall be manufactured in domestic foundries. 2. Frames, Covers and Grates: All manhole frames and covers shall conform to ASTM A-48, Class 30 and shall be manufactured in domestic foundries. Dimensions shall conform to the Standard Details. Manhole frames and covers shall be furnished with the common contact surfaces between frame and cover machined. Connection to Existing Sewers: Tie-ins to existing activated sewer lines will be allowed when proper precautions are taken to protect the existing main. The Contractor will be required to install watertight masonry plugs in the proposed pipelines at the existing manhole and at the first proposed manhole until all construction is completed and tested begun, If the proposed sewer does not begin at an existing manhole, a straddle type manhole as shown on the Standard Details will be constructed over (and around) the undisturbed existing pipeline and the proposed pipeline plugged as specified, The existing pipeline will not be broken - out and the new invert formed until all testing has been successfully completed. Any connection with 18-inch and smaller pipe at an existing pre -cast or cast -in -place manhole will require the Contractor to core the necessary opening through the manhole wall. Connections to existing manholes with 21-inch and larger pipe may be cored or sawed as approved by the Engineer. Temporary Watertight Plugs: The Contractor shall install temporary watertight plugs in the proposed sewer line at any manhole that is incomplete, at the open end of the pipeline prior to leaving the job site daily and elsewhere as dictated by good engineering and construction practices. All installed pipe shall be backfilled or otherwise securely tied down to prevent flotation in the event water enters or rises in the trench. The plugs as installed shall prevent infiltration of the introduction of any foreign material into either the existing or proposed systems. The Contractor shall at his own expense, flush, or otherwise cause the line (and manholes) to be cleaned out without any discharge into the existing system. Upon completion of all construction, the Contractor will be responsible for the complete removal of all watertight plugs, in the sequence necessary to allow testing and subsequent activation, all under the direction of the Engineer. 2. Scheduling; When the flow of an existing sewer must be interrupted and/or bypassed, the Contractor shall, before beginning any construction, submit a work schedule which will minimize the interruption and/or bypassing of wastewater flow during construction. This schedule must be approved by the appropriate controlling agencies and Engineer and may require night, holiday and/or weekend work. 3. Bypass Pumping_ If pumping is required, an identical standby pump shall be on site in the event of failure of the primary pump. If, at any time during construction, effluent from the existing sewer is not fully contained but the bypass system, gravity service will be restored by a temporary tie to the new construction and work shall be suspended until the problem is resolved to the satisfaction of the Engineer. The Contractor shall be responsible for any fines levied as a result of effluent reaching the creek. The Contractor will be required to verify his method of handling sewer flows during construction by pumping at peak flows for 1 hour as approved by the Engineer. Existing Utilities: The Contractor will be required to excavate to determine the precise location of utilities, or other underground obstructions, which are shown on the Construction Plans. Such location and excavation shall be at least 500 feet ahead of construction or as noted in the Special Provision Section of this document. All utility owners will be notified prior to excavation as required by the 1985 Underground Damage Prevention Act. Owners who are members of NC One -Call may be notified in accordance with current NC One -Call procedures, The Contractor will be fully responsible for damage to any utilities if the owners have not been properly notified as required by the Underground Damage Prevention Act. Utility owners may, at their option, have representatives present to supervise excavation in the vicinity of their utilities. The cost of such supervision, if any, shall be borne by the Contractor. Conflicts with underground utilities may necessitate changes in alignment and/or grade of this construction. All such changes will be approved by the Engineer before construction proceeds. When underground obstructions not shown on the Construction Plans are encountered, the Contractor shall promptly report the conflict to the Engineer and shall not proceed with construction until the conflict is resolved by the Engineer. Whenever a sewer main crosses under other utility lines (gas, telephone conduit, storm drain, etc.) there shall be 2 feet clearance between the top of the sewer and the bottom of the affected utility. Stone bedding shall be used from 6-inches below the sewer to 12-inches above the sewer from one foot outside the utility trench. If this clearance is not possible, the sewer line shall be Ductile Iron Pipe from one foot outside the utility trench with a minimum length of 10 feet. Whenever a sewer main crosses over other utility lines (storm drain, gas, encased or capped telephone conduit, etc.) the following will apply: • For PVC sewer lines - There shall be one foot clearance from the top of the utility to the bottom of the sewer. If this clearance is not possible the sewer line shall be ductile iron pipe from one foot outside the utility trench with a minimum length of 10 feet. Sewer Line/Water Line Clearance: When a sewer main of lateral crosses or is parallel to an existing water main, the Contractor shall install ductile iron pipe (including laterals) for the sewer main and water main as described below. 1. Vertical Separation of Sewer Lines & Water Lines: Whenever it is necessary for a sewer main to cross under a water main with less than 18-inches of vertical separation, the sewer main and water main shall be constructed of ductile iron pipe, with joints meeting water main standards, for a distance of 10 feet on each side of the point of crossing. Whenever it is necessary for a sewer main to cross over a water main, the sewer main and water main shall be constructed of ductile iron pipe, with joints meeting water main standards, for a distance of 10 feet on each side of the point of crossing. Horizontal Separation of Sewer Lines and Water Lines: Sewer mains shall be laid at least 10 feet horizontally from existing or proposed water mains unless local conditions or barriers prevent a 10-foot horizontal separation. In that case, the sewer main will be laid in a separate trench, with the elevation of the bottom of the water main at least 18-inches above the top of the sewer. When these conditions are not met, the sewer main and water main shall be constructed of Ductile Iron Pipe with joints meeting water main standards. Horizontal Separation of Sewer Lines and Water Lines: Sewer lines shall be installed at least 100 feet from water wells. Where this separation is not possible the sewer line shall be ductile iron pipe. Sewer lines shall not be installed within 25 feet of any private well or within 50 feet of any community well. Excavation: All excavations for pipe laying, manholes, piers, drainage ditches, grading and any other excavation required for the proper completion of this contract shall be included herein, Excavation within street rights -of -way shall be backfilled when left unattended for more than 1 hour unless otherwise approved by the controlling agency. Excavations within sewer/water rights -of -way shall be backfilled, fenced or otherwise protected when left unattended for more than 1 hour. Fencing or other protection methods shall be designed to reasonably prevent people and large animals from entering the excavation. 1. Trench Excavation: No more trench (100 +/- LF) shall be opened in advance of the pipe laying than is necessary to expedite the work unless prior approval is given by the Engineer. Ground conditions and/or location requirements shall govern the amount of trench open at any one time as determined by the Engineer. a. Trench Width: The maximum trench width shall be as indicated for each type of pipe specified, If the actual trench width exceeds the specified width, due to shoring methods, the Contractor much obtain approval from the Engineer. Trench width shall be measured between faces of cut at the top of the pipe bell. If the Contractor varies from this requirement without prior approval of the Engineer, or if specified trench widths cannot be maintained, improved bedding and/or improved pipe material shall be installed as directed by the Engineer. b. Trench Bottom Conformation: The excavation shall be made to the elevations, grades, and lines shown on the Construction Plans unless otherwise approved by the Engineer. The trench bottom shall be excavated slightly above grade and cut down to the pipe grade by hand in the fine grading operation. The trench bottom shall be true and even with bell holes at each joint to provide the barrel of the pipe with soil and/or granular bedding (as applicable) support for its full length. This should prevent point loading at the bells. If the trench bottom is inadvertently cut below grade, the Contractor shall fit it to grade with approved material thorouahly tamped. Pipe depth and/or soil conditions may dictate a granular embedment as specified below. Such bedding shall also be shaped to allow adequate support of the pipe along the full length of the barrel. If the trench passes either under or over another pipeline or previous excavation, the trench bottom in this area shall be tamped, if necessary, so the disturbed soil has approximately the same supportive strength as the native soil. 2. De -watering: the Contractor shall at all times provide and maintain ample means and equipment with which to remove and properly dispose of any and all water entering the excavation or other parts of the work and keep all excavations dry until such time as pipe laying and grading is completed and structures to be built therein are completed. No water shall be allowed to rise around the pipe in unbackfilled trenches nor shall it be allowed to rise over masonry until the concrete or mortar has set (minimum 24 hours). All water pumped or drained from the work shall be disposed of in such a manner as to prevent siltation and erosion to adjacent property or other construction. 3. Shoring and Shielding: The Contractor shall comply with OSHA trenching and excavation regulations as revised in Subpart P of Part 1926 in the Federal Register. Shoring and/or shielding systems shall be used as specified in Subpart P to prevent caving of trench banks and to provide a safe excavation. The Contractor will be responsible for excavation safety and shall designate his "competent person" (as defined in Subpart P) for the determination of proper shielding/shoring systems, If, in the opinion of the Engineer, the trench/excavation is not in compliance with OSHA regulations, the Contractor may be directed to stop work. Continued unsafe conditions will be reported to the appropriate regulatory agency. The Contractor will be responsible for paying all fines resulting from safety violations. Pipe Laying: In all instances pipe shall be laid in a workmanlike manner, true to line and grade, with bell ends facing up -grade in the direction of laying. The various pipes referred to herein shall be handled, belled up and laid in accordance with the manufacture's requirements and good engineering practices as defined in the various publications referenced in this document. 1. Pipe Bedding: Unless otherwise specified or noted on the Plans the following bedding classes are as commonly required by this Department. When granular material embedment is required, the Contractor will follow the layered procedure specified in Type I for soil placement, above the granular bedding, to an elevation one (1) foot above the top of the pipe bell. a. Tvpe I - Shaped Bottom Bedding: The trench bottom shall be shaped so the pipe bears uniformly upon undisturbed native earth. Soil shall then be placed by hand around the pipe and completely under the pipe haunches in uniform layers no exceeding six (6) inches in depth up to an elevation one (1) foot above the top of the pipe bell. Each layer shall be placed and then carefully and uniformly tamped, so that the pipe is not damaged nor the alignment disturbed. b. Type II - Granular Material Embedment: The trench bottom shall be undercut a minimum of six (6) inches below the pipe barrel grade and filled with an approved stone to an elevation such that the pipe will be completely and uniformly bedded to a vertical height of one-third the outside diameter of the pipe bell for the pipe's entire length and for the entire width of the ditch. Depending upon soil and ground water conditions, greater depths (undercut) may be required to create a stable condition. Type II granular material embedment shall be used as directed by the Engineer. c. Type III -Granular Material Embedment: The trench bottom shall be undercut a minimum of six (6) inches below the pipe barrel grade and filled with an approved stone to an elevation such that the pipe will be completely and uniformly bedded to vertical height of one-half the outside diameter of the pipe bell for the pipe's entire length and for the entire width of the ditch. Depending upon soil and ground water conditions, greater depths (undercut) may be required to create a stable condition. Type III granular material embedment shall be used as directed by the Engineer. d. Stone Stabilization: When the bottom of the trench is not sufficiently stable to prevent vertical or lateral displacement of the pipe after installation with Type II or Type III bedding, stone stabilization will be required to develop a non -yielding foundation for the bedding and pipe, When such conditions are encountered, the trench will be excavated to a depth determined by the Engineer, and # 467 crushed stone will be placed to an elevation six -inches below the bottom of the pipe. The pipe will then be laid with Type II or Type III bedding as directed by the Engineer. e. Concrete Encasement and Cradles: Shall be as designed for each individual case and will be noted on the Plans and in the Special Provisions when applicable. 2. Installation Depth Limitations: The following are limitation and bedding requirements for supportive strength and shall be adhered to at all times. Granular material embedment may still be required for lesser depths of cover should groundwater and/or soil conditions warrant its use, as determined by the Engineer. • The standard trench width for 8"-15" pipe shall be limited to the nominal pipe size plus 30-inches. • The standard trench width for 18"-30" pipe shall be limited to the nominal pipe size plus 36-inches. The standard trench width for 36" and larger pipe shall be limited to the nominal pipe size plus 42-inches. Deviations from the standard trench width shall be as approved by the Engineer. Trench widths must be maintained constant as measured at the top of the pipe. Deviation from the standard trench width will necessitate an increase in the stone bedding around the pipe and/or a change in the type or class of pipe being installed at the Contractor's expense. All pipes regardless of bedding or pipe type shall require adequate tamping of backfill as specified for Type I, Shaped Bottom Bedding. .A . Poly Vinyl Chloride (PVC) Pipe: PVC pipe shall be installed with a minimum of 3.0 feet of cover and a maximum of 20 feet cover. When the cover isles than 3.0 feet or more than 20 feet, Ductile Iron Pipe must be used subject to the specified bedding limits, PVC pipe shall be installed in accordance with ASTM D-2321 with the following modifications: • All PVC pipe shall be installed using Type III Granular Embedment. The bedding shall extend from the pipe to the trench wall or to two and one half pipe diameters (OD) on each side of the pipe, whichever is less. 3. Grade and Line for Pipe: As a minimum, centerline hubs will be set at each manhole and offset stakes set at each manhole, and if required at 100 foot intervals between manholes. Cut sheets will show the vertical distance from the offset stakes to the inlet and outlet pipe invert at each manhole and to the pipe invert at each offset stake. Grade and line may be transferred to "batter boards" set at intervals not to exceed fifty (50) feet. Unless otherwise approved byt the Engineer, three (3) batter boards will be in place at all times while pipe laying is in progress. Each joint shall be checked with a grade rod and plumb line with care being taken to keep the string line taut at all times, Laser beams may be used to set line and grade when the Contractor provides adequate and accurate equipment for the Engineer to check his line and grade at each cut stake (lock levels shall not be considered adequate), If laser equipment is used, the grade shall be checked at each manhole and at benchmarks every 500 feet. The Contractor shall keep close check of his laser for variations in line and grade. No variations between manholes shall be corrected without relaying that portion of line which has deviated from line or grade unless otherwise approved by the Engineer. Lateral Installation: 4-inch and 6-inch Laterals: Four inch and six inch laterals shall be connected to the main with tees as previously specified if the lateral is installed during the construction of the main. Four inch and six inch lateral shall be connected to existing mains with saddles placed in holes cored by an approved coring machine. Saddles and tees shall be as previously specified and as shown on the Standard Details. Laterals shall be completed to the property line using 22 1 /2 degree bends at the tee or saddle and pipe as previously specified and as shown in these Standard Details. The lateral shall be laid with a minimum slope of 1/8-inch per foot (1 %). The end of the lateral will be plugged water/air tight. All tees, saddles and bends shall be completely encased in # 67 washed stone. An "S" shall be cut in the curb at the location where lateral crosses under curb. In subdivisions constructed without curb, the Contractor will paint an"S" on the edge of pavement at the location where the lateral crosses under the edge of pavement. Markings will be made using green paint, All laterals except those serving lots adjacent to in line manholes or upstream from dead-end manholes in cul-de-sacs shall be connected to the sewer main. Laterals connected to manholes shall be laid on a line from the center of the lot to the center of the manhole and shall extend not more than six inches inside the manhole wall. Manholes in cul-de-sacs shall have a maximum of three (3) laterals. Any in line manhole shall have a maximum of two (2) laterals. The lateral elevation entering the manhole shall match crown to crown with the main entering the manhole and a trough shall be formed for the lateral invert. Laterals that are connected to outfall lines shall enter the manhole at the shelf and an invert shall be formed to carry the lateral flow to the main invert. The laterals shall be installed with a minimum of four (4) feet of cover at the property line. The depth of the lateral at the property line shall not be greater than five (5) feet unless greater depth is required to serve the building. The Contractor will not backfill any portion of the lateral until the installation is approved by the Inspector. 2. Measurements: The Inspector, assisted by the Contractor, will measure the distance to the tee or tap from the down -stream manhole to obtain the information required for the "As -Built" records. Backfill: All backfill shall be of a non -plastic nature free from roots, vegetative matter, waste, construction material, rock larger than 3/4 cubic foot, or other objectionable material. Small rock (less than 3/4 cubic foot) shall not exceed 10% of the fill material. Rock shall not be placed within 3-feet of the pipeline or within 3-feet of the finished grade. Rock larger than 3/4 cubic foot will not be permitted within the trench. No objectionable or unsuitable material will be allowed in the backfill. Backfill material shall be capable of being tamped by mechanical tamps using relatively low velocity and heavy blows. The material shall have no tendency to flow or behave in a plastic manner under the tamping blows. Material deemed by the Engineer as unsuitable for backfill shall be removed from the job site before backfilling operations begin. When the Engineer determines that the material excavated from the trench is unsuitable for backfill because of the material type or because it contains excessive debris, rock or organics, it shall be removed from the project and replaced with a backfill material approved by the Engineer. When the moisture content of an otherwise suitable material is too high to achieve specified compaction, as determined by a moisture content and density test, the Contractor shall replace the material as necessary to meet backfill requirements. The wet material maybe dried to optimum moisture content and used for backfill in subsequent phases of the project. Should an otherwise suitable material be found too dry to achieve compaction requirements, water may be added to the material to raise the moisture content to optimum. Borrow material placed at the direction of the Engineer shall be clean earth at optimum moisture content, concord (pit) gravel or ABC stone. Backfill shall be accomplished immediately after the pipe is laid. Backfill around pipe and to an elevation of one (1) foot above the pipe bell shall be done only by hand and in layers not exceeding six (6) inches with each and every layer thoroughly tamped. The first three (3) feet of fill shall be completely free of rocks. Successive layers of backfill shall be compacted in place as specified below. Under no circumstances shall water be permitted to rise in unbackfilled trenches after the pipe has been placed. Should water rise in an unbackfilled ditch after the pipe has been placed, the Engineer may require the Contractor to remove the pipe, muck the trench and follow the procedure for either Type II or Type III granular embedment when relaying the pipe. 1. Backfill of trenches within sewer main rights -of -way: Trenches excavated outside of existing roadway and railway right-of-way may be backfilled, above the initial one (1) foot, by mechanical means in layers up to twelve (12) inches thick, unless otherwise approved by the Engineer. 2. Backfill of trenches within road and railway rights -of -way: Trenches excavated within existing road and railway rights -of -way shall be backfilled in layers not to exceed six (6) inches and each successive layer shall be thoroughly tamped, as specified. Compaction Requirements: Compaction shall be attained by the use of mechanical tamps only. Each layer of backfill shall be placed loose and thoroughly compacted in place. Heavy rollers, vehicles or other equipment shall not be used for compacting backfill nor allowed to cross over completed work except at points adjudged capable of adequately protecting the pipeline, Pneumatic tamps, gasoline ram type tamps or vibrating tamps with sheepsfoot rollers will be required to meet the specifications of "Mechanical Tamp" Variances shall only be with the explicit approval of the Engineer, 1. Compaction Within Sewer Rights -of -way: Trenches excavated outside existing road and railway rights -of -way shall be backfilled as hereinbefore specified and tamped thoroughly: a. All material shall have an in -place density of at least 85% of maximum dry density or as directed by the Engineer. b. Should any public or private roadways, service road, drive, etc. be encountered during this construction, the Contractor shall at the Engineer's direction comply with the compaction requirements specified below for work within road and railway rights -of -way. 2. Compaction Within Road and Railway Rights -of -way: Unless otherwise approved by the controlling agencies, trenches excavated within existing road and railway rights -of -way, and all structure excavation regardless of location, shall be backfilled as hereinbefore specified and thoroughly tamped: a. Unless otherwise directed by the Engineer, all material from the bottom of trench to within six (6) inches of the subgrade shall have an in -place density of 95% of the maximum dry density as defined by a standard proctor curve for the material. b. All materials within six (6) inches of the subgrade level shall have an in place density of 100% of the maximum dry density, c. On roadway shoulders, all material shall have an in place density of 95%of maximum dry density. The Contractor shall remove and replace all material failing to meet these requirements with suitable material. The extent of this removal shall be determined by the Engineer. 3. Compaction Testing: Tests will be performed within all street, highway and railway rights -of -way to insure that the specified compaction requirements are met. The Contractor will cooperate fully with the soils technicians in providing access to backfill at any requested depth for the purpose of performing moisture content/density testing. When requested, the Contractor shall excavate a backfilled ditch to any specified depth for a compaction test and shall insure that the ditch meets all OSHA safety standards before the technician enters to perform the test. A "standard proctor curve" which establishes the relationship between the moisture content and dry density for soil will be determined by the method described in ASTM D-698 or by AASHTO Method T-99, Field density tests will be performed using either the sand cone method of a nuclear moisture/density gauge. Any backfill which does not meet the specified compaction will be re - tamped, or removed and replaced as approved by the Engineer, Manhole Construction: All manholes outside street rights -of -way or landscaped areas shall be constructed to a height of two (2) feet above the adjacent ground unless otherwise indicated on the Plans or by the Special Provisions. Manholes within street rights -of -way or landscaped areas shall have finished rim elevations flush with the pavement or adjacent finished grade. After final inspection is complete and all deficiencies have been corrected, the Contractor shall seal all manholes (rings to covers) with penetration type asphaltic cement No. AC-20 as manufactured by Exxon Oil Company or equal. 1. Pre -cast Reinforced Concrete Structures: All pre -cast manhole sections shall conform to the Material Specifications and Standard Details. Pre -cast manholes shall be treated similar to reinforced concrete pipe for installation. That is, if ground water and/or soil conditions require stabilization for pipe installation comparable measures will be required for pre -cast manhole installation. Under no circumstances will a pre -cast base section be placed on unstable soil as solely determined by the Engineer. Jointing of pre -cast sections will be done in accordance with the manufactures recommendation, with special attention called to the amount of forced used. All backfill around structures shall be thoroughly tamped in layers as specified for placing backfill, Regardless of the type manhole construction used, the Contractor will do that which is necessary to stabilize the soil intended to support the structure. A stable condition shall only be so adjudged by the Construction Engineer or his authorized representative, Any cost incurred by the Contractor in stabilizing the area to support a manhole shall be considered incidental to the manhole construction. Outside Drops: Depending on the particular fittings used, elevation differences of 2.0 to 2.5 feet are required to accommodate an outside drop. When there is not sufficient elevation difference to permit construction of an outside drop, the grade of the influent pipe shall be lowered such that the vertical separation of the influent and effluent pipes is 0.2 feet, as measured at the center of the manhole when the grades of both pipes are projected to that point. Outside drops shall not enter the cone section of pre -cast manholes. 3. Inside Drops: When connecting a proposed sewer main to an existing manhole at an elevation significantly higher than the existing invert elevation, and where safety considerations or working space limitations preclude building an outside drop, the connection may be made with an inside drop constructed in conformance with the Standard Details. Inside drops will be used only where shown on the plans or specifically approved by the Engineer. They may not be used in lieu of outside drops shown on the plans. Inside drops shall not enter the manhole in the cone section. Inside drops are not allowed on four (4) feet diameter manholes. 4. Installation of Frames and Covers: The frame shall be installed on the manhole with anchor bolts on all manholes that are not flush with the ground. 8-inch tall or 4-inch tall frames may be used for manholes with bolt down frames. These frames shall have four (4) holes in the support flange to permit installation on the cone with anchor bolts. Holes shall be equally spaced in the flange. Complete anchor bolt assemblies shall be zinc plated steel and shall consist of a drive in type anchor sleeve, a threaded stud and two nuts. Anchors shall be installed in field drilled holes in the cone. Minimum diameter of the threaded stud shall be 1 /2 inch. The Contractor shall seal the frame to the manhole by installing a length of butyl rubber joint sealant shall have a one inch cross section, and shall make two full circles when placed on the cone section, and shall be compressed by the frame with the anchor bolts. Butyl rubber joint sealant shall be "Rubber Seal" as manufactured by Ru Van, Inc., or approved equal. Cement mortar grouting of the frame shall be required. Brick may not be used to adjust rim elevations of above grade manholes. Manholes that are installed flush with pavement or grade shall have frames attached to the manhole with a bed of cement mortar grout. 8-inch tall frames are required for all manholes that are flush with pavement or finished grade unless otherwise approved, Standard size brick or reinforced concrete grade rings may be used to adjust the finished rim elevation of such manholes. This adjustment may not exceed 21-inches in height, 5. Manhole Step Testing The Contractor will furnish a hydraulic driven system consisting of cylinder, connecting hose and above ground pump with gauge to test manhole steps to exceed 1000 lbs. of resistance of pullout. All field installed steps will be tested. In lieu of field testing steps installed at the plant, certified shop reports by the manufacturer showing that each step passed the required 1000 lb. pullout will be accepted. The certificates will be furnished to the Inspector prior to field installation. Unless the Contractor can furnish the manufacturer's certification on step tests, the Contractor will be required to test 10% of the plant installed steps. An additional 10% will be tested for each failure. Testing and Internal Inspection: The Contractor shall provide ventilation of sewer lines and manholes during any test or inspection procedure. The Contractor shall be responsible for providing all equipment and personnel necessary to comply with OSHA confined spaces regulations. Gravity Sewer Pipe Leakage Testing: No sooner than 10 days following completion of backfill, the Contractor along with the project inspector will be required to determine the level of ground water table. If the level of ground water table is above the top of the pipe, the sewer line shall be tested for infiltration. If there is no ground water above the top of the pipe the sewer line shall be low pressure air tested. Each test shall be performed as follows: a. Infiltration: The infiltration shall not exceed 100 gallons per day per inch diameter per mile as measured for a reach of pipe the same diameter up to one mile long. However, when excessive infiltration can be isolated to a particular section (manhole -manhole) the limit will be applied to that section. There shall be no visible points of infiltration. Any section (manhole -manhole) must be isolated and tested separately if so directed by the Engineer. b. Low Pressure Air Test: Tests shall be performed in accordance with ASTM C-828 and C-924 on sewer lines 42-inches in diameter and smaller. 2. Manhole Leakage Testing Manholes shall be tested by plugging the inlet and outlet pipes with airtight plugs and using one of the following procedures: a. Exfiltration: Fill the manhole to the rim with water and allow the level to equalize due to saturation. Refill the manhole and mark the level to begin the test. The test shall last at least 2 hours and allowable leakage shall be 3 gallons per hour. The Engineer will select 25% of the manholes on the project to be tested. If any manhole fails, an additional manhole will be tested. Manholes that fail the test shall be repaired as specified and retested until they pass. b. Vacuum Air: Manhole vacuum air testing shall be performed in accordance with ASTM C-1244. The Engineer will select 25% of the manholes on the project to be tested. Manholes that fail the test shall be repaired as specified and retested until they pass. Manholes that show leaks and are repaired prior to testing shall be tested as specified. 3. Deflection Testing of PVC Pipe: Not less than 30 days following completion of backfill, the pipe shall be tested for deflection with a 5% mandrel sized as defined in ASTM D-3034. The mandrel shall be pulled through each section of pipe from manhole to manhole. The mandrel must slide freely through the pipe with only a nominal hand force applied. No mechanical device shall be used in pulling the mandrel. Any pipe which refuses the mandrel shall be removed and replaced or re -rounded and the bedding shall be properly constructed as specified to prevent excessive deflection. Such sections shall be retested for deflection after completion of backfill. Repairs: All leaks shall be repaired by identifying and exposing the defective section of pipe and completing repairs as follows: 1. PVC, VCP, or Ductile Iron Pipe: Defective or damaged pipe including leaking joints shall be removed and replaced with sound new pipe. The pipe shall be re- connected with approved couplings as specified in the MS section of this document. 2. RCP: Defective or damaged pipe shall be removed and replaced with sound new pipe. Pipe re -connections shall be made, and joint leaks repaired, using concrete collars per Standard Details. Chemical grouting or internal or external wiping of joints with cement grout are specifically not approved as methods for repairing leaks on new pipelines, regardless of the pipe material. Repair couplings and/or collars shall be limited to one every one hundred feet not to exceed three pipe repairs between manholes. Deficiencies in excess of these limitations shall be corrected by relaying the section of pipe. 3. Manholes: Any damage to the interior wall of the manhole resulting from penetration of the lift holes shall be repaired with non -shrink cement grout. Leaks through manhole joints or walls or around pipe collars, may be repaired from inside the manhole with non -shrink cement grout. If the size of the leak, or the external water pressure, prevents such repairs, the manhole shall be excavated and repaired from outside. Leaks around boots or gaskets used to join pipe to manholes shall be repaired by external concrete collars or as approved by the Engineer. I Lf, vvv � ,,"\l�'`` (7 � \/, `� ,`\ +� `.�� � � /jJ / o dt` i�O j� J���;�`-..a ( c �,} f 3 ��✓'� �':� t\ � ` `I t �`V- � .�,�, �� �! ���f� •—c,---� �. "a ,, i .lam, � {\ •� s�•;t.. 37 04 lap Ll�Branch _ o g 8 N2 ;1��%I �, I�;` 41L ca `r ,..11 VF Q � � .r r► ZC --------- ----------- -- n wpynyrn lam/ raao, maptecn, utc. COMMISSIONERS: HENRY. C FURR MINNIE P. STURDIVANT JOHN W. WILLIAMS WALTER A. McDANIEL MAYOR PRO-TEM BRUCELANDON TREASURER TOWN OF POLKTON P.O. BOX 99 — 113 WEST POLK STREET POLKTON, NORTH CAROLINA 28135-0099 PHONE: (704) 272-7463 • FAX: (704) 272-7493 E-MAIL: TOWNOFPOLKTON@VNET.NET Mr. Grady Dobson NCDENR 225 Green St., Suite 714 Fayetteville NC 28301 RE: Permit Dear Mr. Dobson: 29 July 2003 P 4 . G f O ?D03 Will you call me please as soon as the permit is approved. Thanks. Sincerely, Elizabeth Bane Cameron,CMC Town Manager W. CLIFF MARTIN MAYOR ELIZABETH B. CAMERON TOWN MANAGER CLERK TO THE BOARD FINANCE OFFICER RICHARD BROADAWAY ASSISTANT MANAGER FREDERICK LILES UTILITIES DIRECTOR