A. This Section includes gravity-flow, nonpressure and force-main, pressure sanitary sewerage outside the building, with the following components:

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1 SECTION SANITARY SEWERAGE PART 1 - GENERAL 1.1 RELATED DOCUMENTS A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 1 Specification Sections, apply to this Section. 1.2 SUMMARY A. This Section includes gravity-flow, nonpressure and force-main, pressure sanitary sewerage outside the building, with the following components: 1. Backwater valves. 2. Cleanouts. B. Item called out to be constructed to City of Jefferson Specifications shall not use this specification. The City of Jefferson Technical Specifications and Details shall be used. 1.3 DEFINITIONS A. PVC: Polyvinyl chloride plastic. 1.4 PERFORMANCE REQUIREMENTS A. Gravity-Flow, Nonpressure, Drainage-Piping Pressure Rating: 10-foot head of water. 1.5 SUBMITTALS A. Product Data: For the following: 1. Special pipe fittings. B. Coordination Drawings: Show pipe sizes, locations, and elevations. Show other piping in same trench and clearances from sewerage system piping. Indicate interface and spatial relationship between manholes, piping, and proximate structures. C. Field quality-control test reports. 1.6 DELIVERY, STORAGE, AND HANDLING A. Do not store plastic manholes, pipe, and fittings in direct sunlight. B. Protect pipe, pipe fittings, and seals from dirt and damage. C. Handle manholes according to manufacturer's written rigging instructions. SANITARY SEWERAGE

2 1.7 PROJECT CONDITIONS A. Interruption of Existing Sanitary Sewerage Service: Do not interrupt service to facilities occupied by Owner or others unless permitted under the following conditions and then only after arranging to provide temporary service according to requirements indicated: 1. Notify Architect no fewer than two days in advance of proposed interruption of service. 2. Do not proceed with interruption of service without Architect's written permission. PART 2 - PRODUCTS 2.1 MANUFACTURERS A. In other Part 2 articles where titles below introduce lists, the following requirements apply to product selection: 1. Available Manufacturers: Subject to compliance with requirements, manufacturers offering products that may be incorporated into the Work include, but are not limited to, manufacturers specified. 2.2 PIPING MATERIALS A. Refer to Part 3 "Piping Applications" Article for applications of pipe, fitting, and joining materials. 2.3 PVC PIPE AND FITTINGS A. PVC Sewer Pipe and Fittings, NPS 15 and Smaller: ASTM D 3034, SDR 35, with bell-andspigot ends for gasketed joints with ASTM F 477, elastomeric seals. 2.4 NONPRESSURE-TYPE PIPE COUPLINGS A. Comply with ASTM C 1173, elastomeric, sleeve-type, reducing or transition coupling, for joining underground nonpressure piping. Include ends of same sizes as piping to be joined and corrosion-resistant-metal tension band and tightening mechanism on each end. B. Sleeve Materials: 1. For Plastic Pipes: ASTM F 477, elastomeric seal or ASTM D 5926, PVC. C. Unshielded, Flexible Couplings: Elastomeric sleeve with stainless-steel shear ring and corrosion-resistant-metal tension band and tightening mechanism on each end. 1. Manufacturers: a. Dallas Specialty & Mfg. Co. b. Fernco Inc. c. Logan Clay Products Company (The). d. Mission Rubber Company; a division of MCP Industries, Inc. e. NDS Inc. f. Plastic Oddities, Inc. SANITARY SEWERAGE

3 D. Shielded, Flexible Couplings: ASTM C 1460, elastomeric or rubber sleeve with full-length, corrosion-resistant outer shield and corrosion-resistant-metal tension band and tightening mechanism on each end. 1. Manufacturers: a. Cascade Waterworks Mfg. b. Dallas Specialty & Mfg. Co. c. Mission Rubber Company; a division of MCP Industries, Inc. E. Ring-Type, Flexible Couplings: Elastomeric compression seal with dimensions to fit inside bell of larger pipe and for spigot of smaller pipe to fit inside ring. 1. Manufacturers: a. Fernco Inc. b. Logan Clay Products Company (The). c. Mission Rubber Company; a division of MCP Industries, Inc. F. Nonpressure-Type, Rigid Couplings: ASTM C 1461, sleeve-type reducing- or transition-type mechanical coupling molded from ASTM C 1440, TPE material with corrosion-resistant-metal tension band and tightening mechanism on each end. 1. Manufacturers: a. ANACO. 2.5 CLEANOUTS A. PVC Cleanouts: PVC body with PVC threaded plug. Include PVC sewer pipe fitting and riser to cleanout of same material as sewer piping. 1. Manufacturers: a. Canplas Inc. b. IPS Corporation. c. NDS Inc. d. Plastic Oddities, Inc. e. Sioux Chief Manufacturing Company, Inc. f. Zurn Light Commercial Specialty Plumbing Products; Zurn Plumbing Products Group. PART 3 - EXECUTION 3.1 EARTHWORK A. Excavating, trenching, and backfilling are specified in Division 2 Section "Earthwork." SANITARY SEWERAGE

4 3.2 PIPING APPLICATIONS A. Pipe couplings and special pipe fittings with pressure ratings at least equal to piping rating may be used in applications below, unless otherwise indicated. 1. Use nonpressure-type flexible couplings where required to join gravity-flow, nonpressure sewer piping, unless otherwise indicated. a. Unshielded Shielded flexible or rigidcouplings for same or minor difference OD pipes. b. Unshielded, increaser/reducer-pattern, flexible or rigidcouplings for pipes with different OD. c. Ring-type flexible couplings for piping of different sizes where annular space between smaller piping's OD and larger piping's ID permits installation. B. Special Pipe Fittings: Use for pipe expansion and deflection. Pipe couplings and special pipe fittings with pressure ratings at least equal to piping rating may be used in applications below, unless otherwise indicated. C. Gravity-Flow, Nonpressure Sewer Piping: Use any of the following pipe materials for each size range: 1. NPS 5 and NPS 6: NPS 6 PVC sewer pipe and fittings, gaskets, and gasketed joints. 3.3 PIPING INSTALLATION A. General Locations and Arrangements: Drawing plans and details indicate general location and arrangement of underground sanitary sewerage piping. Location and arrangement of piping layout take design considerations into account. Install piping as indicated, to extent practical. Where specific installation is not indicated, follow piping manufacturer's written instructions. B. Install piping beginning at low point, true to grades and alignment indicated with unbroken continuity of invert. Place bell ends of piping facing upstream. Install gaskets, seals, sleeves, and couplings according to manufacturer's written instructions for using lubricants, cements, and other installation requirements. C. Install manholes for changes in direction, unless fittings are indicated. Use fittings for branch connections, unless direct tap into existing sewer is indicated. D. Install proper size increasers, reducers, and couplings where different sizes or materials of pipes and fittings are connected. Reducing size of piping in direction of flow is prohibited. E. Tunneling: Install pipe under streets or other obstructions that cannot be disturbed by tunneling, jacking, or combination of both. F. Install gravity-flow, nonpressure, drainage piping according to the following: 1. Install piping pitched down in direction of flow, at minimum slope of 2 percent, unless otherwise indicated. 2. Install piping NPS 6 and larger with restrained joints at tee fittings and at changes in direction. Use corrosion-resistant rods, pipe or fitting manufacturer's proprietary restraint system, or cast-in-place-concrete supports or anchors. 3. Install piping with 36-inch minimum cover. 4. Install piping below frost line. SANITARY SEWERAGE

5 5. Install PVC sewer piping according to ASTM D 2321 and ASTM F Install PVC profile gravity sewer piping according to ASTM D 2321 and ASTM F G. Clear interior of piping and manholes of dirt and superfluous material as work progresses. Maintain swab or drag in piping, and pull past each joint as it is completed. Place plug in end of incomplete piping at end of day and when work stops. 3.4 PIPE JOINT CONSTRUCTION A. Basic piping joint construction is specified in Division 2 Section "Piped Utilities - Basic Materials and Methods." Where specific joint construction is not indicated, follow piping manufacturer's written instructions. B. Join gravity-flow, nonpressure, drainage piping according to the following: 1. Join PVC sewer piping according to ASTM D 2321 and ASTM D 3034 for elastomericseal joints or ASTM D 3034 for elastomeric-gasket joints. 2. Join PVC profile gravity sewer piping according to ASTM D 2321 for elastomeric-seal joints or ASTM F 794 for gasketed joints. 3.5 CLEANOUT INSTALLATION A. Install cleanouts and riser extensions from sewer pipes to cleanouts at grade. Use cast-iron soil pipe fittings in sewer pipes at branches for cleanouts and cast-iron soil pipe for riser extensions to cleanouts. Install piping so cleanouts open in direction of flow in sewer pipe. 1. Use light-duty, top-loading classification cleanouts in earth or unpaved foot-traffic areas. 2. Use medium-duty, top-loading classification cleanouts in paved foot-traffic areas. 3. Use heavy-duty, top-loading classification cleanouts in vehicle-traffic service areas. 4. Use extra-heavy-duty, top-loading classification cleanouts in roads. B. Set cleanout frames and covers in earth in cast-in-place-concrete block, 18 by 18 by 12 inches deep. Set with tops 1 inch above surrounding grade. C. Set cleanout frames and covers in concrete pavement with tops flush with pavement surface. 3.6 CONNECTIONS A. Connect nonpressure, gravity-flow drainage piping to building's sanitary building drains specified in Division 15 Section "Sanitary Waste and Vent Piping." B. Make connections to existing piping and underground manholes. 1. Use commercially manufactured wye fittings for piping branch connections. Remove section of existing pipe; install wye fitting into existing piping; and encase entire wye fitting, plus 6-inch overlap, with not less than 6 inches of concrete with 28-day compressive strength of 3000 psi. 2. Make branch connections from side into existing piping, NPS 4 to NPS 20. Remove section of existing pipe; install wye fitting into existing piping; and encase entire wye with not less than 6 inches of concrete with 28-day compressive strength of 3000 psi. 3. Make branch connections from side into existing piping, NPS 21 or larger, or to underground manholes by cutting opening into existing unit large enough to allow 3 SANITARY SEWERAGE

6 inches of concrete to be packed around entering connection. Cut end of connection pipe passing through pipe or structure wall to conform to shape of and be flush with inside wall, unless otherwise indicated. On outside of pipe or manhole wall, encase entering connection in 6 inches of concrete for minimum length of 12 inches to provide additional support of collar from connection to undisturbed ground. a. Use concrete that will attain minimum 28-day compressive strength of 3000 psi, unless otherwise indicated. b. Use epoxy-bonding compound as interface between new and existing concrete and piping materials. 4. Protect existing piping and manholes to prevent concrete or debris from entering while making tap connections. Remove debris or other extraneous material that may accumulate. C. Connect to grease interceptors specified in Division 2 Section "Interceptors." 3.7 IDENTIFICATION A. Materials and their installation are specified in Division 2 Section "Earthwork." Arrange for installation of green warning tapes directly over piping and at outside edges of underground manholes. 1. Use warning tape or]detectable warning tape over ferrous piping. 2. Use detectable warning tape over nonferrous piping and over edges of underground manholes. 3.8 FIELD QUALITY CONTROL A. Inspect interior of piping to determine whether line displacement or other damage has occurred. Inspect after approximately 24 inches of backfill is in place, and again at completion of Project. 1. Submit separate report for each system inspection. 2. Defects requiring correction include the following: a. Alignment: Less than full diameter of inside of pipe is visible between structures. b. Deflection: Flexible piping with deflection that prevents passage of ball or cylinder of size not less than 92.5 percent of piping diameter. c. Crushed, broken, cracked, or otherwise damaged piping. d. Infiltration: Water leakage into piping. e. Exfiltration: Water leakage from or around piping. 3. Replace defective piping using new materials, and repeat inspections until defects are within allowances specified. 4. Reinspect and repeat procedure until results are satisfactory. B. Test new piping systems, and parts of existing systems that have been altered, extended, or repaired, for leaks and defects. 1. Do not enclose, cover, or put into service before inspection and approval. 2. Test completed piping systems according to requirements of authorities having jurisdiction. SANITARY SEWERAGE

7 3. Schedule tests and inspections by authorities having jurisdiction with at least 24 hours' advance notice. 4. Submit separate report for each test. 5. Hydrostatic Tests: Test sanitary sewerage according to requirements of authorities having jurisdiction and the following: a. Allowable leakage is maximum of 50 gal./inch of nominal pipe size per mile of pipe, during 24-hour period. b. Close openings in system and fill with water. c. Purge air and refill with water. d. Disconnect water supply. e. Test and inspect joints for leaks. f. Option: Test ductile-iron piping according to AWWA C600, "Hydrostatic Testing" Section. Use test pressure of at least 10 psig. 6. Air Tests: Test sanitary sewerage according to requirements of authorities having jurisdiction, UNI-B-6, and the following: a. Option: Test plastic gravity sewer piping according to ASTM F b. Option: Test concrete gravity sewer piping according to ASTM C 924. C. Leaks and loss in test pressure constitute defects that must be repaired. D. Replace leaking piping using new materials, and repeat testing until leakage is within allowances specified. 3.9 CLEANING A. Clean interior of piping of dirt and superfluous material. Flush with potable water. END OF SECTION SANITARY SEWERAGE

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9 SECTION STORM UTILITY DRAINAGE PIPING PART 1 - GENERAL 1.1 RELATED DOCUMENTS A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section. 1.2 SUMMARY A. Section Includes: 1. Pipe and fittings. 2. Nonpressure transition couplings. 3. Pressure pipe couplings. 4. Expansion joints and deflection fittings. 5. Backwater valves. 6. Cleanouts. 7. Drains. 8. Encasement for piping. 9. Manholes. 10. Channel drainage systems. 11. Catch basins. 12. Stormwater inlets. 13. Stormwater detention structures. 14. Pipe outlets. 15. Dry wells. 16. Stormwater disposal systems. 1.3 DEFINITIONS A. FRP: Fiberglass-reinforced plastic. 1.4 ACTION SUBMITTALS A. Product Data: For each type of product indicated. B. Shop Drawings: None 1.5 INFORMATIONAL SUBMITTALS A. Product Certificates: For each type of cast-iron soil pipe and fitting, from manufacturer. 1.6 DELIVERY, STORAGE, AND HANDLING A. Do not store plastic pipe and fittings in direct sunlight. STORM UTILITY DRAINAGE PIPING

10 B. Protect pipe, pipe fittings, and seals from dirt and damage. PART 2 - PRODUCTS 2.1 PVC PIPE AND FITTINGS A. PVC Cellular-Core Piping: 1. PVC Cellular-Core Pipe and Fittings: ASTM F 891, Sewer and Drain Series, PS 50 minimum stiffness, PVC cellular-core pipe with plain ends for solvent-cemented joints. 2. Fittings: ASTM D 3034, SDR 35, PVC socket-type fittings. B. PVC Corrugated Sewer Piping: 1. Pipe: ASTM F 949, PVC, corrugated pipe with bell-and-spigot ends for gasketed joints. 2. Fittings: ASTM F 949, PVC molded or fabricated, socket type. 3. Gaskets: ASTM F 477, elastomeric seals. C. PVC Profile Sewer Piping: 1. Pipe: ASTM F 794, PVC profile, gravity sewer pipe with bell-and-spigot ends for gasketed joints. 2. Fittings: ASTM D 3034, PVC with bell ends. 3. Gaskets: ASTM F 477, elastomeric seals. D. PVC Type PSM Sewer Piping: 1. Pipe: ASTM D 3034, SDR 35, PVC Type PSM sewer pipe with bell-and-spigot ends for gasketed joints. 2. Fittings: ASTM D 3034, PVC with bell ends. 3. Gaskets: ASTM F 477, elastomeric seals. E. PVC Gravity Sewer Piping: 1. Pipe and Fittings: ASTM F 679, T-1 wall thickness, PVC gravity sewer pipe with bell-andspigot ends and with integral ASTM F 477, elastomeric seals for gasketed joints. F. PVC Water-Service Piping: 1. Pipe: ASTM D 1785, Schedule 40 PVC, with plain ends for solvent-cemented joints. 2. Fittings: ASTM D 2466, Schedule 40 PVC, socket type. 2.2 NONPRESSURE TRANSITION COUPLINGS A. Comply with ASTM C 1173, elastomeric, sleeve-type, reducing or transition coupling, for joining underground nonpressure piping. Include ends of same sizes as piping to be joined, and corrosion-resistant-metal tension band and tightening mechanism on each end. B. Sleeve Materials: 1. For Plastic Pipes: ASTM F 477, elastomeric seal or ASTM D 5926, PVC. 2. For Dissimilar Pipes: ASTM D 5926, PVC or other material compatible with pipe materials being joined. STORM UTILITY DRAINAGE PIPING

11 C. Unshielded, Flexible Couplings: 1. Manufacturers: Subject to compliance with requirements, available manufacturers offering products that may be incorporated into the Work include, but are not limited to, the following: a. Dallas Specialty & Mfg. Co. b. Fernco Inc. c. Logan Clay Pipe. d. Mission Rubber Company; a division of MCP Industries, Inc. e. NDS Inc. f. Plastic Oddities; a division of Diverse Corporate Technologies, Inc.. 2. Description: Elastomeric sleeve with stainless-steel shear ring and corrosion-resistantmetal tension band and tightening mechanism on each end. D. Shielded, Flexible Couplings: 1. Manufacturers: Subject to compliance with requirements, available manufacturers offering products that may be incorporated into the Work include, but are not limited to, the following: a. Cascade Waterworks Mfg. b. Dallas Specialty & Mfg. Co. c. Mission Rubber Company; a division of MCP Industries, Inc. 2. Description: ASTM C 1460, elastomeric or rubber sleeve with full-length, corrosionresistant outer shield and corrosion-resistant-metal tension band and tightening mechanism on each end. E. Ring-Type, Flexible Couplings: 1. Manufacturers: Subject to compliance with requirements, available manufacturers offering products that may be incorporated into the Work include, but are not limited to, the following: a. Fernco Inc. b. Logan Clay Pipe. c. Mission Rubber Company; a division of MCP Industries, Inc. 2. Description: Elastomeric compression seal with dimensions to fit inside bell of larger pipe and for spigot of smaller pipe to fit inside ring. 2.3 EXPANSION JOINTS AND DEFLECTION FITTINGS 2.4 CLEANOUTS A. Cast-Iron Cleanouts: STORM UTILITY DRAINAGE PIPING

12 1. Manufacturers: Subject to compliance with requirements, available manufacturers offering products that may be incorporated into the Work include, but are not limited to, the following: a. Josam Company. b. MIFAB, Inc. c. Smith, Jay R. Mfg. Co. d. Tyler Pipe. e. Watts Water Technologies, Inc. f. Zurn Specification Drainage Operation; Zurn Plumbing Products Group. 2. Description: ASME A M, round, gray-iron housing with clamping device and round, secured, scoriated, gray-iron cover. Include gray-iron ferrule with inside calk or spigot connection and countersunk, tapered-thread, brass closure plug. 3. Top-Loading Classification(s): Heavy Duty and Extra-Heavy Duty. 4. Sewer Pipe Fitting and Riser to Cleanout: ASTM A 74, Service class, cast-iron soil pipe and fittings. B. Plastic Cleanouts: 1. Manufacturers: Subject to compliance with requirements, available manufacturers offering products that may be incorporated into the Work include, but are not limited to, the following: a. Canplas LLC. b. IPS Corporation. c. NDS Inc. d. Plastic Oddities; a division of Diverse Corporate Technologies, Inc. e. Sioux Chief Manufacturing Company, Inc. f. Zurn Light Commercial Products Operation; Zurn Plumbing Products Group. 2. Description: PVC body with PVC threaded plug. Include PVC sewer pipe fitting and riser to cleanout of same material as sewer piping. PART 3 - EXECUTION 3.1 EARTHWORK A. Excavation, trenching, and backfilling are specified in Section "Earth Moving." 3.2 PIPING INSTALLATION A. General Locations and Arrangements: Drawing plans and details indicate general location and arrangement of underground storm drainage piping. Location and arrangement of piping layout take into account design considerations. Install piping as indicated, to extent practical. Where specific installation is not indicated, follow piping manufacturer's written instructions. B. Install piping beginning at low point, true to grades and alignment indicated with unbroken continuity of invert. Place bell ends of piping facing upstream. Install gaskets, seals, sleeves, and couplings according to manufacturer's written instructions for use of lubricants, cements, and other installation requirements. STORM UTILITY DRAINAGE PIPING

13 C. Install manholes for changes in direction unless fittings are indicated. Use fittings for branch connections unless direct tap into existing sewer is indicated. D. Install proper size increasers, reducers, and couplings where different sizes or materials of pipes and fittings are connected. Reducing size of piping in direction of flow is prohibited. E. When installing pipe under streets or other obstructions that cannot be disturbed, use pipejacking process of microtunneling. F. Install gravity-flow, nonpressure drainage piping according to the following: 1. Install piping pitched down in direction of flow. 2. Install piping NPS 6 and larger with restrained joints at tee fittings and at changes in direction. Use corrosion-resistant rods, pipe or fitting manufacturer's proprietary restraint system, or cast-in-place concrete supports or anchors. 3. Install PVC cellular-core piping according to ASTM D 2321 and ASTM F Install PVC sewer piping according to ASTM D 2321 and ASTM F Install PVC profile gravity sewer piping according to ASTM D 2321 and ASTM F Install PVC water-service piping according to ASTM D 2321 and ASTM F PIPE JOINT CONSTRUCTION A. Join gravity-flow, nonpressure drainage piping according to the following: 1. Join PVC cellular-core piping according to ASTM D 2321 and ASTM F 891 for solventcemented joints. 2. Join PVC corrugated sewer piping according to ASTM D 2321 for elastomeric-seal joints. 3. Join PVC sewer piping according to ASTM D 2321 and ASTM D 3034 for elastomericseal joints or ASTM D 3034 for elastomeric-gasketed joints. 4. Join PVC profile gravity sewer piping according to ASTM D 2321 for elastomeric-seal joints or ASTM F 794 for gasketed joints. 5. Join dissimilar pipe materials with nonpressure-type flexible couplings. 3.4 CLEANOUT INSTALLATION A. Install cleanouts and riser extensions from sewer pipes to cleanouts at grade. Use cast-iron soil pipe fittings in sewer pipes at branches for cleanouts and cast-iron soil pipe for riser extensions to cleanouts. Install piping so cleanouts open in direction of flow in sewer pipe. 1. Use Light-Duty, top-loading classification cleanouts in earth or unpaved foot-traffic areas. 2. Use Medium-Duty, top-loading classification cleanouts in paved foot-traffic areas. 3. Use Heavy-Duty, top-loading classification cleanouts in vehicle-traffic service areas. 4. Use Extra-Heavy-Duty, top-loading classification cleanouts in roads. B. Set cleanout frames and covers in earth in cast-in-place concrete block, 12 by 12 by 6 inches deep. Set with tops 1 inch above surrounding earth grade. C. Set cleanout frames and covers in concrete pavement and roads with tops flush with pavement surface. D. Set drain frames and covers with tops flush with pavement surface. E. Assemble trench sections with flanged joints. STORM UTILITY DRAINAGE PIPING

14 F. Embed trench sections in 4-inch minimum concrete around bottom and sides. 3.5 CONNECTIONS A. Connect nonpressure, gravity-flow drainage piping in building's storm building drains specified in Section "Facility Storm Drainage Piping." B. Connect force-main piping to building's storm drainage force mains specified in Section "Facility Storm Drainage Piping." Terminate piping where indicated. C. Make connections to existing piping and underground manholes. 1. Use commercially manufactured wye fittings for piping branch connections. Remove section of existing pipe; install wye fitting into existing piping; and encase entire wye fitting, plus 6-inch overlap, with not less than 6 inches of concrete with 28-day compressive strength of 3000 psi. 2. Make branch connections from side into existing piping, NPS 4 to NPS 20. Remove section of existing pipe, install wye fitting into existing piping, and encase entire wye with not less than 6 inches of concrete with 28-day compressive strength of 3000 psi. 3. Make branch connections from side into existing piping, NPS 21 or larger, or to underground manholes and structures by cutting into existing unit and creating an opening large enough to allow 3 inches of concrete to be packed around entering connection. Cut end of connection pipe passing through pipe or structure wall to conform to shape of and be flush with inside wall unless otherwise indicated. On outside of pipe, manhole, or structure wall, encase entering connection in 6 inches of concrete for minimum length of 12 inches to provide additional support of collar from connection to undisturbed ground. a. Use concrete that will attain a minimum 28-day compressive strength of 3000 psi unless otherwise indicated. b. Use epoxy-bonding compound as interface between new and existing concrete and piping materials. 4. Protect existing piping, manholes, and structures to prevent concrete or debris from entering while making tap connections. Remove debris or other extraneous material that may accumulate. D. Pipe couplings, expansion joints, and deflection fittings with pressure ratings at least equal to piping rating may be used in applications below unless otherwise indicated. 1. Use nonpressure-type flexible couplings where required to join gravity-flow, nonpressure sewer piping unless otherwise indicated. a. Unshielded flexible couplings for same or minor difference OD pipes. b. Unshielded, increaser/reducer-pattern, flexible couplings for pipes with different OD. c. Ring-type flexible couplings for piping of different sizes where annular space between smaller piping's OD and larger piping's ID permits installation. 2. Use pressure-type pipe couplings for force-main joints. STORM UTILITY DRAINAGE PIPING

15 3.6 CLOSING ABANDONED STORM DRAINAGE SYSTEMS A. Abandoned Piping: Close open ends of abandoned underground piping indicated to remain in place. Include closures strong enough to withstand hydrostatic and earth pressures that may result after ends of abandoned piping have been closed. Use either procedure below: 1. Close open ends of piping with threaded metal caps, plastic plugs, or other acceptable methods suitable for size and type of material being closed. Do not use wood plugs. B. Abandoned Manholes and Structures: Excavate around manholes and structures as required and use one procedure below: 1. Remove manhole or structure and close open ends of remaining piping. 2. Remove top of manhole or structure down to at least 36 inches below final grade. Fill to within 12 inches of top with stone, rubble, gravel, or compacted dirt. Fill to top with concrete. C. Backfill to grade according to Section "Earth Moving." 3.7 IDENTIFICATION A. Materials and their installation are specified in Section "Earth Moving." Arrange for installation of green warning tape directly over piping and at outside edge of underground structures. 1. Use warning tape or detectable warning tape over ferrous piping. 2. Use detectable warning tape over nonferrous piping and over edges of underground structures. 3.8 FIELD QUALITY CONTROL A. Inspect interior of piping to determine whether line displacement or other damage has occurred. Inspect after approximately 24 inches of backfill is in place, and again at completion of Project. 1. Submit separate reports for each system inspection. 2. Defects requiring correction include the following: a. Alignment: Less than full diameter of inside of pipe is visible between structures. b. Deflection: Flexible piping with deflection that prevents passage of ball or cylinder of size not less than 92.5 percent of piping diameter. c. Damage: Crushed, broken, cracked, or otherwise damaged piping. d. Infiltration: Water leakage into piping. e. Exfiltration: Water leakage from or around piping. 3. Replace defective piping using new materials, and repeat inspections until defects are within allowances specified. 4. Reinspect and repeat procedure until results are satisfactory. B. Test new piping systems, and parts of existing systems that have been altered, extended, or repaired, for leaks and defects. 1. Do not enclose, cover, or put into service before inspection and approval. 2. Test completed piping systems according to requirements of authorities having jurisdiction. STORM UTILITY DRAINAGE PIPING

16 3. Schedule tests and inspections by authorities having jurisdiction with at least 24 hours' advance notice. 4. Submit separate report for each test. 5. Gravity-Flow Storm Drainage Piping: Test according to requirements of authorities having jurisdiction, UNI-B-6, and the following: a. Exception: Piping with soiltight joints unless required by authorities having jurisdiction. b. Option: Test plastic piping according to ASTM F C. Leaks and loss in test pressure constitute defects that must be repaired. D. Replace leaking piping using new materials, and repeat testing until leakage is within allowances specified. 3.9 CLEANING A. Clean interior of piping of dirt and superfluous materials. Flush with water. END OF SECTION STORM UTILITY DRAINAGE PIPING

17 SECTION SUBDRAINAGE PART 1 - GENERAL 1.1 RELATED DOCUMENTS A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 1 Specification Sections, apply to this Section. 1.2 SUMMARY A. This Section includes subdrainage systems for the following: 1. Foundations. 2. Retaining walls. B. Related Sections include the following: 1. Division 31 Section Earthwork for granular drainage backfill material and placement. 1.3 DEFINITIONS A. PVC: Polyvinyl chloride plastic. B. Subdrainage: Drainage system that collects and removes subsurface or seepage water. 1.4 SUBMITTALS A. Product Data: For the following: 1. Perforated-wall pipe and fittings. 2. Geotextile filter fabrics. PART 2 - PRODUCTS 2.1 PIPING MATERIALS A. Refer to the "Piping Applications" Article in Part 3 for applications of pipe, tube, fitting, and joining materials. 2.2 PERFORATED-WALL PIPES AND FITTINGS A. Perforated PVC Sewer Pipe and Fittings: Schedule 40, bell-and-spigot ends, for loose joints. 1. Gaskets: ASTM C 443 (ASTM C 443M), rubber. SUBDRAINAGE

18 2.3 SOLID-WALL PIPES AND FITTINGS A. PVC Sewer Pipe and Fittings: Schedule 40, bell-and-spigot ends, for gasketed joints. 1. Gaskets: ASTM F 477, elastomeric seal. 2.4 SPECIAL PIPE COUPLINGS A. Comply with ASTM C 1173, elastomeric, sleeve-type, reducing or transition coupling, for joining underground nonpressure piping. Include ends of same sizes as piping to be joined and corrosion-resistant metal tension band and tightening mechanism on each end. 1. Sleeve Materials: a. For Plastic Pipes: ASTM F 477, elastomeric seal or ASTM D 5926, PVC. b. For Dissimilar Pipes: ASTM D 5926, PVC or other material compatible with pipe materials being joined. 2. Unshielded Flexible Couplings: Elastomeric sleeve with stainless-steel shear ring and corrosion-resistant metal tension band and tightening mechanism on each end. 2.5 CLEANOUTS A. Cast-Iron Cleanouts: ASME A M; with round-flanged, cast-iron housing; and secured, scoriated, Medium-Duty Loading class, cast-iron cover. Include cast-iron ferrule and countersunk, brass cleanout plug. B. PVC Cleanouts: ASTM D 3034, PVC cleanout threaded plug and threaded pipe hub. 2.6 SOIL MATERIALS A. Backfill, drainage course, impervious fill, and satisfactory soil materials are specified in Division 2 Section "Earthwork." 2.7 GEOTEXTILE FILTER FABRICS A. Description: Fabric of PP or polyester fibers or combination of both, with flow rate range from 110 to 330 gpm/sq. ft. when tested according to ASTM D Structure Type: Nonwoven, needle-punched continuous filament or woven, monofilament or multifilament. 2. Style(s): Flat and sock. PART 3 - EXECUTION 3.1 EXAMINATION A. Examine surfaces and areas for suitable conditions where subdrainage systems are to be installed. SUBDRAINAGE

19 B. Proceed with installation only after unsatisfactory conditions have been corrected. 3.2 EARTHWORK A. Excavating, trenching, and backfilling are specified in Division 2 Section "Earthwork." 3.3 PIPING APPLICATIONS A. Underground Subdrainage Piping: 1. Perforated PVC sewer pipe and fittings for loose, bell-and-spigot joints. 3.4 CLEANOUT APPLICATIONS A. In Underground Subdrainage Piping: 1. At Grade in Earth: PVC cleanouts. 2. At Grade in Paved Areas: Cast-iron cleanouts. 3.5 FOUNDATION DRAINAGE INSTALLATION A. Place impervious fill on subgrade adjacent to bottom of footing and compact to dimensions indicated, but not less than 6 inches deep and 12 inches wide after concrete footing forms have been removed. B. Lay flat-style geotextile filter fabric in trench and overlap trench sides. C. Place supporting layer of drainage course over compacted subgrade and geotextile filter fabric, to compacted depth of not less than 4 inches. D. Encase pipe with sock-style geotextile filter fabric before installing pipe. Connect sock sections with adhesive or tape. E. Install drainage piping as indicated in Part 3 "Piping Installation" Article for foundation subdrainage. F. Add drainage course to width of at least 6 inches on side away from wall and to top of pipe to perform tests. G. After satisfactory testing, cover drainage piping to width of at least 6 inches on side away from footing and above top of pipe to within 12 inches of finish grade. H. Install drainage course and wrap top of drainage course with flat-style geotextile filter fabric. I. Place layer of flat-style geotextile filter fabric over top of drainage course, overlapping edges at least 4 inches. SUBDRAINAGE

20 3.6 PIPING INSTALLATION A. Install piping beginning at low points of system, true to grades and alignment indicated, with unbroken continuity of invert. Bed piping with full bearing in filtering material. Install gaskets, seals, sleeves, and couplings according to manufacturer's written instructions and other requirements indicated. 1. Foundation Subdrainage: Install piping pitched down in direction of flow, at a minimum slope of 0.5 percent and with a minimum cover of 36 inches, unless otherwise indicated. 2. Lay perforated pipe with perforations down. 3. Excavate recesses in trench bottom for bell ends of pipe. Lay pipe with bells facing upslope and with spigot end entered fully into adjacent bell. B. Use increasers, reducers, and couplings made for different sizes or materials of pipes and fittings being connected. Reduction of pipe size in direction of flow is prohibited. C. Install PVC piping according to ASTM D PIPE JOINT CONSTRUCTION A. Join perforated PVC pipe and fittings according to ASTM D 2729, with loose bell-and-spigot joints. B. Special Pipe Couplings: Join piping made of different materials and dimensions with special couplings made for this application. Use couplings that are compatible with and fit materials and dimensions of both pipes. 3.8 CLEANOUT INSTALLATION A. Cleanouts for Foundation Subdrainage: 1. Install cleanouts from piping to grade. Locate cleanouts at beginning of piping run and at changes in direction. Install fittings so cleanouts open in direction of flow in piping. 2. In vehicular-traffic areas, use NPS 4 cast-iron soil pipe and fittings for piping branch fittings and riser extensions to cleanout. Set cleanout frames and covers in a cast-inplace concrete anchor, 18 by 18 by 12 inches in depth. Set top of cleanout flush with grade. Cast-iron pipe may also be used for cleanouts in nonvehicular-traffic areas. 3. In nonvehicular-traffic areas, use NPS 4 PVC pipe and fittings for piping branch fittings and riser extensions to cleanout. Set cleanout frames and covers in a cast-in-place concrete anchor, 12 by 12 by 4 inches in depth. Set top of cleanout plug 1 inch above grade. 3.9 CONNECTIONS A. Drawings indicate general arrangement of piping, fittings, and specialties. B. Connect low elevations of subdrainage system to building's solid-wall-piping storm drainage system. SUBDRAINAGE

21 3.10 FIELD QUALITY CONTROL A. Testing: After installing drainage course to top of piping, test drain piping with water to ensure free flow before backfilling. Remove obstructions, replace damaged components, and repeat test until results are satisfactory CLEANING A. Clear interior of installed piping and structures of dirt and other superfluous material as work progresses. Maintain swab or drag in piping and pull past each joint as it is completed. Place plugs in ends of uncompleted pipe at end of each day or when work stops. END OF SECTION SUBDRAINAGE

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