Proposed Sanitary Sewer No. 5787A, CIP TRENCHLESS TECHNOLOGY (REHABILITATION OF EXISTING SANITARY AND COMBINED SEWERS BY LINING PROCESS)

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1 Proposed Sanitary Sewer No. 5787A, CIP TRENCHLESS TECHNOLOGY (REHABILITATION OF EXISTING SANITARY AND COMBINED SEWERS BY LINING PROCESS) Detailed Provisions PAGE PART I. GENERAL 1 PART II. SPECIAL PROVISIONS 8 PART III. GENERAL PROVISIONS 10 PART IV. MATERIALS AND EXECUTION 15 PART V. CONSTRUCTION REQUIREMENTS 18 PART VI. QUALITY ASSURANCE 23 PART VII. PAYMENT FOR WORK 25

2 PART I GENERAL Section 1. Scope of Services 1.1 This contract covers the rehabilitation of existing sanitary and combined sewers by lining using the following approved process: Cured-in-place pipe (CIPP). Specific liner products shall be approved by the City of Cincinnati Metropolitan Sewer District (MSD) Trenchless Technology Products Committee (or New Products Committee) and/or the MSD Director (if approved prior to 1998) prior to use. A list of approved products to date is presented in Part I, Section 6. The primary contract objective is the structural and hydraulic renewal of the existing sewer main. The project is composed of approximately 16,611-feet of 8 to 27 sanitary and combined sewers. See Appendix A for lining locations, pipe section data and required liner thicknesses. The contractor shall complete all work performed under this contract by December 31, The contractor shall as necessary excavate and repair the sewer main prior to lining, clean and televise the sewer, reconnect existing sewer service connections, and provide all submittals as outlined in this specification. Television inspection includes televising immediately before lining, televising after lining, televising after making repairs to correct liner defects, and televising after rehabilitating lateral connections. Requirements pertaining to these activities are presented in greater detail in the upcoming sections. On an as needed basis, the contractor shall rehabilitate lateral connections using a top hat design or structural grout to repair broken, recessed, or protruding laterals. A predetermined, lump sum amount of fifty thousand dollars ($50,000.00) is included in the list of bid items to cover associated costs. The quantities and locations cannot be determined prior to bid. The post-lining tape is the source from which the lateral seal locations will be selected. When it is determined that a lateral must be repaired via a lateral seal, MSD will review the entire segment for other lateral seal applications in an attempt to minimize the mobilization/demobilization costs. The MSD Project Manager shall select the locations after the main sewer is lined. MSD reserves the right to perform or not perform work under this item based on the actual costs proposed by the contractor during the course of the contract, and no work shall be performed under this bid item without prior approval from the MSD project manager. A lump sum work allowance of ten thousand dollars ($10,000.00) is included in the list of bid items. These funds are intended to cover the costs of additional work that may be identified by the MSD project manager during the course of the contract. MSD reserves the right to perform or not perform additional work under this bid item, and no work shall be performed under this bid item without prior approval from the MSD project manager. A predetermined, lump sum amount of fifteen thousand dollars ($15,000.00) is included in the list of bid items to cover the cost of permits that may be required for the contractor to perform work in the public rightof-way (see Part III, Section 1). MSD will reimburse the contractor for actual permit fees charged by the various municipalities plus the allowable markup set forth in the General Conditions. This specification pertains to the rehabilitation of main line sewers and lateral connections where applicable. Award of the contract will be determined through an evaluation of bids and made in light of the best interest of MSD. 1.2 The contractor shall furnish all labor, components, materials, tools, and appurtenances necessary for the performance and completion of the contract. Copies of all MSD internal pipe inspection videos and reports are included in the Invitation for Bid Package. These MSD tapes and reports are the best available information. 1

3 1.3 The contractor shall be held fully liable for any damages incurred during the installation of liners that are caused by its negligence or the negligence of its subcontractor(s). The contractor shall hold harmless the City of Cincinnati and the Hamilton County Board of County Commissioners and all its representatives from all suits, actions, of claims of any character brought on account of any injuries or damages sustained by any person or persons or property in the performance of this contract. 1.4 Priority List. The priority list identifies sewer locations that require lining within 60 days of the contractor receiving the notice to proceed. The contractor is permitted to line other segments before the priority lines but must still meet the 60-day deadline. The priority listing is in the bidding documents, Detailed Provisions, Appendix B. 1.5 Patents, Trade Secrets, Copyrights. The contractor shall pay all license fees and royalties and assume all costs incident to the use in the performance of the work or the incorporation in the work of any invention, design, process, product or device which is the subject of patent rights, trade secrets protection rights, or copyrights held by others. The contractor shall indemnify and hold harmless the owner and engineer and anyone directly or indirectly employed by either of them from and against all claims, damages, losses and expenses (including attorney s fees and court and arbitration costs) arising out of any infringement of patent rights, trade secret protection rights, or copyrights incident to the use in the performance of the work or resulting from the incorporation in the work of any invention, design, process, product or device not specified in the contract documents, and shall defend all such claims in connection with any alleged infringement of such rights. Section 2. MSD Project Contacts This contract will be administered and performed under the direction and inspection of the MSD Project Engineer, Eric Saylor, P.E., Wastewater Collection Division, 225 West Galbraith Road, Cincinnati, Ohio 45215, telephone number All technical questions should be directed to the MSD Project Manager, Shawn Patton, P.E., telephone number All contract-related questions should be directed to Laura Brown, Wastewater Engineering Division, at Section 3. Liquidated Damages If MSD incurs fines or penalties due to this contract not being completed on time or due to negligent actions on the part of the contractor, MSD reserves the right to assess liquidated damages to the extent which allows the recovery of actual documented expenses incurred by MSD resulting from such delays or negligence. Section 4. Compliance and Acceptance (Sewer Rehabilitation and Lateral Sealing Only) 4.1 Compliance with this contract shall be complete when all conditions set forth in these specifications have been met, including the following: The finished liner shall be continuous over the entire length of the manhole-to-manhole section. The finished liner shall conform to the walls around the circumference of the existing (host) sewer main. No longitudinal or circumferential shrinkage between the finished liner and the existing (host) sewer main shall be visible at the manholes, sewer service connections, or other exposed points within the finished lined section. The finished liner shall be homogeneous throughout and free of any blemishes, wrinkles, ribs, protrusions, holes, visible cracks, foreign material, blisters, or other deleterious faults or any other defects, which shall affect the liner's structural integrity, strength, hydraulic performance, future maintenance access, and overall performance. 2

4 4.2 Completed point repairs shall have no offsets, open joints, bellies, deposits, protrusions, or defects that may result in the liner failing to meet final acceptance criteria. 4.3 Completed lateral seals shall have no defects that may result in the liner failing to meet final acceptance criteria as described above in subsection 4.1. The lateral seal shall yield a surface conformal with the sewer wall and the lateral connection wall. 4.4 Defects in the finished liner, which will affect the liner's structural integrity, strength, hydraulic performance, future maintenance access, and overall line performance, shall be repaired or the sewer replaced at the contractor's expense. Any lined section or segment (from manhole to manhole) exhibiting these defects shall be held for payment until such time repairs have been made to the defective liner (see Part VII, subsection 2.1). Suggested methods of repair to resolve common defects are presented below in Table A. Note that this list is not all inclusive, and the final repair method shall be approved at the MSD Project Engineer s discretion on a case-by-case basis depending on actual site conditions. When the contractor and MSD do not agree that the defect will affect the issues above and/or on a repair method, the contractor may request that the issue be sent to an MSD-selected independent engineering firm with experience in CIPP lining and trenchless technologies. If this situation arises, MSD will accept the ruling of the independent engineering firm as final. Any and all fees due to the independent engineering firm for this professional service will be paid by the contractor if the ruling favors MSD s position, or by MSD if the ruling favors the contractor s position. Table A Required Defect Repair Methods Common Defect(s) Repair Method Cracked, missing pipe or voids caused by the cleaning operation (3) Dropped pipe or shapeloss caused by the cleaning operation (3) Damaged lateral caused by overly ground tap (i.e., over-cut service, damaged PVC, etc.) Wrinkles or ridges in the flow line that may impede the flow, prevent proper maintenance of the pipe, or sacrifice the structural integrity of the liner Reinstated bulkheaded tap or inactive service connection Pre-lining Post-lining Repair with structural grout (1), thicken liner, or point repair (2) Point repair(2) Lined over debris Point repair (2) Repair with top hat, structural grout (1) repair (2) at the contractor s expense. or point Grinding allowed if not part of structural component of liner. If grinding would require removal of structural component, then contractor shall make a point repair (2) at the contractor s expense. Re-seal with structural grout (1) or point repair (2) Soft spots or lifts in the liner Point repair (2) Final liner thickness less than required thickness bid Sewer maintenance equipment cannot pass the lateral seal (4) See Part I, Section 4.5 Replace or point repair(2) 3

5 NOTES: 1. Grout shall be a structural grout system such as the KA-TE, or equal system and may be robotically-applied or hand-applied as conditions dictate. 2. The contractor can propose a cured-in-place point repair system or excavate and replace the defect. 3. This will be determined based on the bid tape and the pre-lining tape. MSD will also research its databases to ensure that no other private or public entity has been in the sewer from the point of the bid tape to the notice of the defect. 4. Current MSD camera specifications state that: 1) camera shall not exceed an overall length of 17.7, a head length of 6.6, and a camera barrel diameter of 3 ; 2) rear portion of the camera ( camera housing ) shall not exceed 3 in diameter to allow for operation in skids and self-propelled units that are designed for 3 diameter cameras; and 3) a self-propelled lateral inspection system launcher camera system when utilized in 8 diameter pipe shall not exceed 6 W x 4.75 H x 36.5 L. These specifications are subject to change and therefore are designed to give the bidder a general idea of the clearance required in the lined pipe. Decisions on whether to implement a repair method will be made on a case-by-case basis. 4.5 The minimum wall thickness of the liner shall be within 10 percent of the required thickness specified in Appendix A. The thickness of the liner will be determined by samples (see Part VI). If the liner thickness exceeds the 10 percent allowance, for every 1 percent decrease in thickness (past the 10 percent allowance) the contractor will be penalized 5 percent of the cost of all work at that specific lining location. If the contractor s liner thickness is less than 87.5 percent of the specified design thickness, MSD reserves the right to instruct the contractor to remove the liner and replace it at his/her (the contractor s) expense. It is the responsibility of the contractor to consider site conditions and their installation process in order to determine the thickness to install. Pipe conditions may change from the time of bid; therefore, the contractor shall notify the MSD Project Manager if the existing pipe has deteriorated from the condition documented on the bid tapes so that the design thickness can be changed. Changes in pipe conditions can be determined by comparing the bid tape video to the video(s) of the segment taken by the contractor prior to lining. If necessary, MSD personnel will research to determine if any other entity has been in the sewer during that period of time. 4.6 Prior to lining, the contractor shall verify manhole depths, section lengths, diameters, slopes and other pertinent information in the field. MSD uses recent TV Inspection Reports, ArcView GIS, and old drawings to provide this information to the contractor. MSD may field verify data that appears questionable; however, the contractor is ultimately responsible for confirming all site information. Section 5. Referenced Documents All work shall also conform to the latest edition of the following specifications: MSD Rules and Regulations and Standard Drawings City of Cincinnati Supplement (City Supplement) to the State of Ohio Department of Transportation, Construction and Material Specification State of Ohio Department of Transportation, Construction and Material Specification American Society for Testing and Materials (ASTM). These shall pertain to product material, installation, testing, final acceptance, etc. as applicable. Rules and Regulations of the Office of the County Engineer If there are discrepancies in these specifications, the MSD Rules and Regulations shall govern, thence the City Supplement, and then the ODOT Specification. Section 6. Approved Installers and Lining Products for Mainline Sewer Rehabilitation All bidders shall have Approved Installer status and shall have an approved lining product per the procedures established by the MSD Trenchless Technology Committee prior to bid (see Part IV subsection 1.3). 4

6 There are currently three approved installers with products in various stages of the approval process; however, none of these products has been fully approved by the MSD Trenchless Technology Committee. Because MSD is under a consent order to meet specific lining goals on an annual basis, and because each of the approved installers products has previously been given conditional approval, the conditional approvals shall be extended for the purpose of executing this contract and satisfying the consent order requirements. These specific conditional approvals will be extended to future contracts as necessary for MSD to satisfy consent order requirements and maintain a reasonably competitive bidding environment and will be revoked at such time when they are no longer necessary to achieve these goals. The following installers and conditionally approved lining products shall be permitted on this contract: Approved Installer Product Name Product Type Insituform Technologies, Inc. Insituform Cured-in-place Pipe Kokosing Construction Company, Inc. CIPP Corp. Cured-in-place Pipe Reynolds Inliner, LLC Inliner Cured-in-place Pipe Minor product changes, such as a change in resin, change in installation method, etc., may be requested by the installer during the course of the contract in accordance with the procedures established by the MSD Trenchless Technology Committee. If minor changes are approved, the MSD Project Engineer shall have the sole discretion to determine if the revised product can be used on this contract. The determination of the MSD Project Engineer will be made in light of the best interest of MSD and shall be final. Requests to use entirely new products on this contract will be considered by the MSD Project Engineer on a caseby-case basis in light of the best interest of MSD. Section 7. Submittals 7.1 All submittals are due to the MSD Project Manager as scheduled. The contractor shall not proceed with its work until all submittals are received and approved. The MSD Project Manager reserves the right to adjust the due dates of the submittals based on contractor performance. All submittals shall be labeled indicating what is represented, specification sewer number, lining location, name of firm, and project number. 7.2 Submittals Required of the Successful Bidder Prior to the Pre-construction Meeting. A. Name of the competent person(s) and resume(s) as defined in Item of the City Supplement. B. Copies of NASSCO Pipeline Assessment and Certification Program (PACP) training certificates for all CCTV inspectors. C. Site Safety Plan. A complete site safety plan shall be submitted one week prior to the pre-construction meeting and comply with Item of the City Supplement. The site safety plan shall include applicable Material Safety Data Sheets (MSDS) and safety measures to be employed in areas where air pressure/steam curing will be used. Work shall not begin until an approved site safety plan is in place. D. Materials certification from the manufacturer and contractor. The certificate of compliance shall include the following information: Identify the materials (felt, coating, resin system, end seal) to be used on this contract. Recommended physical properties for design of liner thickness (flexural modulus, flexural strength, tensile strength, creep factor). Statement that the final product shall meet or exceed requirements of this specification once installed under field conditions. 5

7 Statement that the product has not been modified from the original acceptance criteria that were used for the product acceptance by MSD. E. Liner Installation and Curing Plan. This plan shall identify the planned installation (pulled-in-place or inversion using hydrostatic head or air pressure) and curing (circulating hot water or controlled steam) methods for the various liner sections. 7.3 Submittals Required for Pre-construction Meeting. A. Copy of advanced notification to residents (see Part III, Section 6). B. Management Organization. The contractor shall provide an organization chart depicting the essential organizational elements and senior personnel of its firm and its subcontractor(s) and the functions and interrelationships of the personnel proposed to provide design, engineering, technical support, project management and supervision for this project. The contractor shall provide succinct resumes of the personnel proposed to provide design, engineering, technical support and project management for this project. The personnel designated in the management summary for essential positions shall not be changed except with the permission from the MSD Project Engineer. The MSD Project Engineer shall only approve such a change when, in his opinion, the substitute personnel have equal or greater qualifications and experience to those intended to be replaced. C. Pricing schedule showing costs for CIPP thickness changes and splices for thickness and diameter changes that may be specified by the MSD Project Manager after the contract award. D. Pricing schedule showing hourly rates for men and equipment to perform additional work at time and materials rates that may be specified by the MSD Project Manager after the contract award. 7.4 Submittals Required Prior to Lining (items A, B, and F pertain to main line sewer rehabilitation only). A. Grout mix, set time, and placement procedure. When grouting is required, this shall be submitted for approval at least 72 hours prior to use (see Part IV, subsection 1.5). B. Completed cleaning logs. C. The method of construction. This shall be provided no later than two days prior to the day of the lining to the MSD Inspector (see Part V, subsection 1.6 for details). D. One copy of each entry release as required in Part III, Section 6. E. One copy of each required permit obtained by the contractor (e.g. excavations, tree removal, traffic). F. One copy of the tube order. G. Manufacturer s recommended minimum/maximum pressures for inversion and curing, and resin cure temperature/schedule. Explanation should be included for planned deviations from manufacturer s recommendations. 7.5 Submittals Required 24 Hours Following Main Line Lining. (Note: this does not include weekends. Items to be submitted from lining operations on a Friday are not required to be submitted until Monday.) A. Samples, ready for testing (see Part VI). On its cook log the contractor shall inform MSD of their sample thickness measurements. The contractor shall subtract the coating liner thickness when providing this result. 6

8 B. Pre-lining and post-lining CCTV inspections and logs (see Part V, Section 3). C. One copy of processing records for each installed liner. The records should include logs of incoming and outgoing hot water/steam temperatures and host pipe invert-liner interface temperatures at both ends during the curing period. For steam curing, the records should also include a continuous log of pressure during the cure. Should the pressure during cure deviate from the required pressure specified by the tube manufacturer, an explanation shall be provided and MSD shall reserve the right to accept or reject the installed liner. D. Documentation showing the resin name and liner wet out date. 7.6 Weekly Submittals. A. Updates to the schedule. These shall be ed to the MSD Project Manager (or his representative) no later than 1:00 P.M. on the Thursday preceding the next week's lining-related activities (see Part V, subsection 1.5). B. Corrections to punch list items as required by the MSD Project Manager to fulfill the requirements of this specification. These shall be ed to the MSD Project Manager (or his representative). C. Documentation showing the amount of structural grout used in rehabilitating the lateral. D. Final post-tape, electronic inspection reports, and tape logs after rehabilitating the lateral connection (see Part V, subsection 3.5). 7.7 Final Submittals Prior to Payment. A. Corrections to punch list items as required by the MSD Project Manager to fulfill the requirements of this specification. 7

9 PART II SPECIAL PROVISIONS Section 1. MSD Rights 1.1 MSD reserves the right to stop the work at any time and with no prior notice when in the MSD Project Engineer's judgment the contractor's work or activities are threatening the health and safety of those directly associated with this work and the public or endangering the environment or the waters of the state. Work shall not proceed until a satisfactory resolution has been achieved, according to the MSD Project Engineer. 1.2 No contractor, or its subcontractor(s), shall perform any work without notifying MSD personnel for inspection. An MSD inspector or designated representative shall be on-site prior to installing lining materials and backfilling excavations. Notification shall be verbally given to the MSD Inspector preferably on the previous working day or no later than 7:30 A.M. on the day the work is to be performed. Daily notification shall include the location of work, nature of work, the crew, and the time it will be on-site. MSD will confirm receipt of the notification phone call from the contractor. Failure to notify MSD shall result in the contractor being held liable for all damages to the system, restoration of any areas disturbed, and all downstream pollution resulting from the contractor's actions. In addition, MSD may require the contractor to reimburse MSD $ per day for each instance it fails to provide proper notification and/or cancels work for reasons other than those beyond their control, such as main line sewer surcharged. These damages are intended to offset the cost of MSD s unproductive inspection time. Also, failure to notify MSD could result in no payment for work performed. A list of persons available to be notified shall be given at the pre-construction meeting. Section 2. Emergency Response Emergency situations as they pertain to lining operations include, but are not limited to, sewer backups due to missed connections causing sewer backups into homes/businesses, liner failure causing sewer overflows, styrene odors in a building, etc. The contractor may be responsible for costs incurred by MSD to investigate the emergency. These costs include, but are not limited to rodding, cleanup costs, and restoration. If MSD fails to notify the contractor of the emergency, the contractor shall NOT be responsible for any costs associated with investigating or remedying the emergency. If a contractor mobilizes to a location and it is determined that the MSD crew was mistaken and the contractor is not responsible for the emergency, MSD will reimburse the contractor for all costs associated with the mobilization, on-site costs, and demobilization according to the schedule of hourly rates provided by the contractor at the pre-construction meeting. Work Week: The contractor shall provide a 24 hour-per-day, 7 day-a-week cell phone number for its emergency designee to the MSD Project Manager. This emergency designee shall be responsible for contacting MSD within one hour after the first voice mail message. MSD shall give the contractor the first opportunity to remedy the emergency situation. If the contractor's crew has not responded to the site of the emergency within two hours of the first voice mail message and/or summons on the pager, MSD reserves the right to make all necessary repairs and bill the contractor for all work performed. Costs related to the emergency response shall be incidental to the contract and not measured for payment. Weekend: The contractor shall provide a 24 hour-per-day, 7 day-a-week cell phone number for its emergency designee to the MSD Project Manager. This emergency designee shall be responsible for contacting MSD within one hour after the first voice mail message. MSD shall give the contractor the first opportunity to remedy the emergency situation. In the case of a sewage backup into a home or a sewer overflow, if MSD is able to pump the sewage back into its sewer, the contractor shall have 24 hours from the first voice mail message to respond to the site. If MSD cannot pump the sewage back into the sewer, the contractor shall respond to the site within 4 hours of the first voice mail message. (Note: The contractor may be required to reimburse MSD for all expenses associated with the pumping.) In all other emergencies, if the contractor crew has not responded to the site of the emergency within four hours of the first voice mail message and/or summons on the pager, MSD reserves the right to take the necessary 8

10 action(s) and bill the contractor for all work performed. Costs related to the emergency response shall be incidental to the contract and not measured for payment. Section 3. Working Hours 3.1 The contractor shall complete all main line sewer lining and remote tap re-opening operations within a section such that no homeowner is without sewer service for more than 24 hours, unless otherwise directed by the MSD Project Manager. Local noise ordinances or agencies having control over roadway closures may control starting or stopping operations. 3.2 No linings shall be allowed on weekends, days before holidays, or holidays except at the discretion of the MSD Project Manager. The contractor shall follow MSD s holiday schedule. Section 4. Pre-construction Meeting Following award of the contract and before starting any work, the contractor and its subcontractor(s), Superintendent or Field Contract Manager shall meet with the MSD Project Engineer and Project Manager. The contractor shall be notified of the date, time, and place of the meeting. Section 5. Close-out Procedures 5.1 Progress Meetings. Project close-out shall be completed in phases, depending on the size of the project. On multiple location projects, the project closeout shall be completed each week, or as required by the MSD Project Manager. The MSD Project Manager shall hold progress meetings, as determined necessary by him. Items covered in the meeting are detailed below. A. Punch List. The contractor shall assist the MSD Project Manager in preparation and updating of the punch list. This list is a Microsoft Word document and details all items requiring correction, repair, or improvements in order to be accepted and shall be ed to the contractor on a weekly basis. Failure to show progress on the punch list may result in a reduction in the number of days per week the contractor may schedule new liner installations and delay of payment until completed to the satisfaction of the MSD Project Manager. B. Reports and Submittals. Final reports, CCTV inspections and other submittals previously described shall be finalized and submitted (see Part I, subsections 7.5 through 7.7). C. Review of the status of pay estimates. 5.2 Post-Construction Meeting. A post-construction meeting may be held at the MSD Project Engineer's discretion to review the project. Any items not previously addressed shall be reviewed at this time. 5.3 Post-Construction Services. The contractor may be required to provide post-construction services to correct deficiencies in any items that may be identified after substantial completion of the project. 9

11 PART III GENERAL PROVISIONS Section 1. Obtaining Permits The contractor shall be responsible for obtaining ALL permits associated with the performance of the work including but not limited to traffic, excavation, tree removal, etc. An Exception to this rule is work within the jurisdiction of the Ohio Department of Transportation. MSD will obtain these permits for the contractor. The contractor should note that it might take several days for ODOT to approve the permit upon notification of intent to excavate. It should be noted that if the contractor works at a location and did not acquire the proper permits, MSD may choose to not compensate him/her for any work associated with that specific lining location. Section 2. Maintenance of Traffic 2.1 This is considered incidental to the contract and not measured separately for payment. The contractor shall be responsible for maintaining local traffic at all times and for notifying the proper authorities regarding the closing of the roads. 2.2 The contractor shall not begin work until standard barricades and warning signs are in an acceptable position and the markers and signs conform to the Ohio Manual of Uniform Traffic Control Devices for Streets and Highways (Ohio Manual). The cost of all traffic control devices shall be included in the various sewer items. The contractor assumes all responsibilities and liabilities regarding strict adherence to applicable sections for the maintenance of traffic and public safety as set forth in the Ohio Manual. All traffic control devices shall be in place prior to starting construction. 2.3 The contractor shall maintain local traffic at all times during this project in a manner causing the least amount of inconvenience to the abutting property owners. Temporary driveways, temporary roadways, or run arounds as may be necessary to provide vehicular access to and from the abutting properties shall be constructed, maintained, and subsequently removed by the contractor as directed by the MSD Project Manager. 2.4 If at any time a street must be closed or traffic has to be blocked (emergencies only), the contractor shall notify the nearest fire and police departments. 2.5 The portion of the pavement not affected by the sewer reconstruction shall be kept clear of all material and equipment. 2.6 All pavement excavations within the public right-of-way shall conform to the current edition of the State of Ohio Department of Highway Construction and Material Specification, with supplements or changes thereto. Section 3. Existing Utilities 3.1 The contractor shall take the necessary precautions for the protection of any utility encountered on the project or the restoration of any utility damaged during the work. 3.2 The contractor shall notify, at least 48 hours before breaking ground, all public or private service corporations having wire, poles, pipes, conduit, manholes, or other structures that may be affected by this operation, including all structures, which are affected and not shown on these plans. Owners of underground utilities, which are members of the Ohio Utilities Protection Service, can be notified by calling Non-member underground utility owners shall be called directly. 10

12 3.3 Supporting and protecting existing water lines, gas mains, telephone conduit, etc., shall be included in payment for the various contract items of work. 3.4 All work required for the maintenance of service of existing utilities shall be done by, and at the expense of the contractor. 3.5 All maintenance, repair, and replacement of existing utilities shall be in accordance with the rules and regulations of the various utility companies having jurisdiction. 3.6 All existing storm sewers, driveway drains, and other surface drain pipes, removed or damaged during construction shall be repaired and reconnected by the contractor as directed by the MSD Project Manager at no cost to MSD. All utilities other than water and sewer lines are to be relocated as directed by the MSD Project Manager at no cost to MSD. 3.7 It is assumed there are water, gas lines, etc. serving each residence. The contractor shall repair or replace these and any other utilities if damaged at no cost to MSD. Section 4. Construction Procedure It shall be the contractor's responsibility to work equipment around poles, trees, or other obstructions and to do so at its own expense. Section 5. Request for Supplementary Information It shall be the responsibility of the contractor to make timely requests of MSD for supplemental information, which should be furnished by MSD under the terms of this contract, and as required in the planning and execution of the work. Such requests may be submitted from time to time as the need approaches, but each shall be filed in ample time to permit appropriate action to be taken by all parties involved to avoid delay. Each request shall be in writing (hard copy or ), and list the various items and the latest day by which each shall be required by the contractor. The first list shall be submitted within two (2) weeks after contract award and shall be as complete as possible at that time. The contractor shall, if required, furnish promptly any assistance and information the MSD Project Manager may require in responding to these requests of the contractor. The contractor shall be fully responsible for all delays arising from failure to comply with this section. Section 6. Use of Private Property 6.1 The contractor shall not trespass upon or in any way disturb private property without first attempting on three separate occasions to obtain an entry release from the property owner. A copy of the entry release shall be given to the MSD Inspector for each particular segment(s) on the day of lining. 6.2 If the contractor finds it necessary to obtain additional working areas, it shall be the contractor's responsibility for the acquisition of further entry releases. This includes the construction of temporary access roads and their subsequent removal. 6.3 The contractor shall, at no additional expense, restore such property to the full satisfaction of the owner. The MSD Inspector may choose to verify with the homeowner that the site was restored to his/her satisfaction. 6.4 The contractor shall not waste any excess earth, stone, or other excavated material on any property without first obtaining written permission of the owner of the property, securing any required cut and/or fill permits and securing the approval of the MSD Project Manager. 6.5 All items within the street right-of-way or sewer easement shall be removed, or removed and replaced, or restored as directed by the MSD Project Manager. 11

13 6.6 The contractor shall ensure all employees have a badge or visible identification during any time that they are on the project site or private property. This identification shall be worn so that it is readily recognized and readable to the public. 6.7 The contractor shall immediately investigate any and all reports of sewage backing up into fixtures or styrene odors in the area that is being cleaned or lined. Section 7. Protection of Trees The contractor shall avoid any unnecessary damage to trees. Branches which overhang the construction limits and which interfere with the operation of equipment shall be tied back to avoid damage, if possible. Where injury to branches is unavoidable, the branches shall be sawed off neatly at the trunk or main branch, and the cut area shall be painted with approved tree paint immediately. The contractor, at no additional expense, shall remove any trees damaged beyond saving, and make restitution to the owner (public or private). The contractor should be aware that the City of Cincinnati, Division of Urban Forestry Specifications is stringent regarding the removal and replacement of trees; its rules apply only within the limits of the City of Cincinnati. The contractor is responsible for the acquisition of any permits associated with removing a tree. Section 8. Fencing Any fences, including hedge and shrubs, that need to be removed to facilitate sewer construction operations shall be replaced, in kind or with repairs satisfactory to the owner, at the contractor's expense. Replacement of fences, hedges, and shrubs shall be considered incidental to the contract and not measured separately for payment. Section 9. Non-Landscaping Restoration 9.1 All roadway berms and drainage ditches disturbed by the contractor s work shall be restored, reshaped, and graded to drain. 9.2 Pavement restoration shall conform to: Hamilton County Engineer's Rules and Regulations Governing Driveway Regulations and Pavement and Right-of-Way Opening Provisions plates 13 through 26 inclusive as directed by the MSD Project Manager, the municipality's regulations, or the City of Cincinnati's Specifications depending upon who has jurisdiction for the street. Trench backfill and compaction shall be in conformance with the City Supplement or local street restoration jurisdiction, whichever is stricter. 9.3 The remediation of sunken trenches shall be the contractor's responsibility. Sunken areas shall be backfilled and compacted to meet adjoining grades; the surface shall be re-seeded or resurfaced with asphalt or concrete matching the existing surfacing. The contractor's responsibility for this item shall be under the terms of, and for the duration of the guarantee defined in Item of the City Supplement. 9.4 The contractor shall restore unpaved areas by seeding and mulching in accordance with Item 659 of the Ohio Department of Transportation Construction and Material Specifications. No direct payment shall be made for seeding and mulching. 9.5 Driveways shall be restored with 2 inches of Asphalt Surface Course on a 6 inch Aggregate Base or with 7 inch thick Plain Portland Cement Concrete Pavement in accordance with Items 404, 304, and 452 of the Ohio Department of Transportation Construction Materials Specifications. Concrete walks shall be restored with a 5-inch thick plain Portland cement Concrete Walk in accordance with Item 608 of the Ohio Department of Transportation Construction Materials Specifications. 9.6 All disturbed areas shall be restored as nearly as possible to their pre-construction condition. 12

14 9.7 All restoration shall be completed in strict accordance with the appropriate items of the specifications as directed by the MSD Project Manager. 9.8 The cost of all restoration of streets, drives, walks, sod, etc., shall be incidental to the contract and not measured for payment. 9.9 The restoration of sod areas and driveways shall be kept current with the installation of the liner. This shall be considered a part of the installation and failure to keep restoration of these items completed reasonably close may result in a stop work notice and delay of payment until such restoration is completed to the satisfaction of the MSD Project Manager. Section 10. Cleanup The contractor shall keep the work area in an uncluttered condition by the frequent removal of debris. The contractor shall remove all debris and unused material and leave the area in a condition similar to the condition of the area before any work was performed. Section 11. Property Damage The contractor shall make repairs immediately if it causes any damage to private or public property. Failure to complete the restoration in a timely manner shall result in the delay of payment for work performed. Section 12. Access To Municipal Water Supplies 12.1 The contractor shall obtain all the necessary permits and pay all fees required to use the various municipal water works supply systems. All costs for water usage shall be included in the various contract items. Water services to residents or other users of the municipal water works system shall not be shut off Some municipalities may restrict water usage due to outside temperature or other issues. It is the contractor s responsibility to obtain the necessary permits and be aware of any restrictions prior to lining. Failure to comply with the rules for usage of the water works systems may result in denial of any use of the water works system facility. Section 13. Notification of Residents It is the responsibility of the contractor to notify all residents that could be affected by the sewer reconstruction. Notification shall be given at least 24 hours prior to the start of the cleaning and lining operation. This notification shall consist of written information that outlines the process, explains all chemicals that shall be used and their effects and odors, and timing of the project. Section 14. Erosion Protection 14.1 Soil erosion and sedimentation controls shall be installed and maintained over the duration of the project as needed. Erosion protection shall conform to: Item 670 of the Ohio Department of Transportation Construction Materials Specifications. This work shall consist of furnishing, placing, and maintaining slope erosion protection, and ditch erosion protection by seeding, matting, paper blanket, mulching, or erosion control netting. These controls shall be located within or along the edge of construction between the proposed sewer lining operations and the watercourse or its tributaries. 13

15 14.2 The contractor shall give special attention to proper sewer construction, protection of the stream and riparian areas so that the stream can be restored to before construction condition If stated in the bid package, the MSD Project Manager shall require the contractor to submit an Erosion Control Plan for certain off-road locations prior to starting any construction work. The Plan shall include sound creek-crossing techniques, location of access, type and location of erosion control devices. The Plan shall be included with the method of construction (see Part V, subsection 1.6). The Plan may be legibly hand-drawn on an 8 ½ x 11 paper. 14

16 PART IV MATERIALS AND EXECUTION Section 1. General 1.1 Material and Equipment Acceptance. At the time of manufacture, each lot of pipe, liner, and fittings shall be inspected for defects by the installer. At the time of delivery, the liner shall be homogeneous throughout, uniform in color, and free of cracks, holes, foreign materials, blisters, kinks, or deleterious faults. Pipes with the aforementioned defects shall be rejected. The contractor shall furnish and maintain, in good condition, all equipment necessary for proper execution and inspection of the work. The contractor shall protect, store, and handle the lining material during transportation while on-site and during installation in accordance with manufacturer's recommendations to ensure that the liner material is not damaged. If any part of the lining material becomes damaged before or during installation, it shall be repaired or replaced at the contractor's expense before proceeding further. 1.2 Marking. Liner shall be marked at an interval not to exceed 5 feet with a coded number, which identifies the manufacturer, date, nominal pipe diameter, and average liner thickness. Marking requirements shall also meet or exceed applicable ASTM standards governing the use of the product. 1.3 Changes to Liner. Any changes to the chemical composition, process or installation of liners during the course of the contract shall be approved in accordance with the procedures established by the MSD Trenchless Technology Committee. If changes are approved by the committee, the MSD Project Engineer shall have the sole discretion to determine if the revised product can be used on this contract. The determination of the MSD Project Engineer will be made in light of the best interest of MSD and shall be final. 1.4 Installation Forces. Installation forces and pressures shall be limited so as not to stretch the material longitudinally by more than 5% of the original length. These forces shall also be limited so as not to damage the existing pipe, laterals, or manholes. When pulling in the liner, the contractor shall provide a gauge to measure these forces on each installation. 1.5 Pipe Invert Deterioration. If the invert of the sewer pipe is missing or deteriorated due to contractor cleaning operations, the contractor shall: 1) grout the voided area prior to insertion of the liner, 2) thicken the liner, or 3) point repair the main line (see Part I, Table A). Any depression in the pipe or trough in the invert shall not be acceptable. End Seal. Liner terminations at manholes shall be trimmed flush with the manhole walls. If the contractor improperly cuts the liner termination point or causes a defect that may impede the flow or prevent proper maintenance of the pipe, the contractor shall remedy that situation at his/her expense. The defect shall be repaired with an epoxy-based resin that is compatible with the liner. 1.6 When lining consecutive sections, the liner may be continuous through the manholes. The liner shall be cut and trimmed flush with the manhole walls and the bench walls, unless otherwise directed by the MSD inspector. 1.7 Service Connections. The contractor shall not damage or cause further deterioration to existing service connections during the cleaning and lining operation. Existing sewer service connections shall be reinstated using a closed circuit television camera and a remote controlled cutting device. 15

17 Only live sewer service connections shall be reinstated. Bulkheaded service connections shall not be reinstated. The contractor shall make a reasonable effort to confirm the status of questionable connections during the cleaning operation; however, it is not the intent of this specification to require excessive effort to perform this task (i.e.; additional mobilizations during odd hours for the sole purpose of dye testing). In cases where a service connection s status is in question, the MSD inspector will make a determination on the day of lining to reinstate or not to reinstate the connection. The contractor shall be responsible for bringing questionable service connections to the MSD inspector s attention during the pre-lining inspection. When the service connection is re-established, the invert of the service connection shall match the bottom of the reinstated service opening. The service shall be reinstated to a minimum of 95% of the original service connection unless otherwise directed by the MSD Project Manager. In the case where the host lateral material is PVC or is a break-in tap, the lateral openings shall be reinstated to a minimum of 85% of the original opening. The sewer service connection cuts shall be uniform and free of burrs and sharp edges. Any remedial work to repair a deficient cut shall be at the contractor s expense. There is a potential of incorrect tap identification or deficient tap re-opening resulting in a sewer service connection back-up. During the terms of the contract, the contractor shall maintain an emergency crew capable of cutting taps and responding to customer problems after normal working hours (see Part II, Section 2). In the event that the MSD inspector directs the contractor not to reinstate a service connection that is later found to be live, the contractor will not be responsible for damages to the attached property, and the contractor will be reimbursed at the unit price for reinstating a service connection to remobilize and reinstate the connection. However, if the contractor fails to reinstate a lateral that is later found to be live, and if the same connection was not brought to the MSD inspector s attention to determine its status, the contractor will be responsible for all damages to the affected property and the contractor will be reimbursed at the unit price for reinstating a service connection to remobilize and reinstate the connection. After laterals have been cut, the sewer main shall be flushed and all the coupons from the cut laterals shall be retrieved and properly disposed of by the contractor. Whenever possible, MSD would like to see the collection of the coupons on the post-lining CCTV inspection. Section 2. Materials and Installation Procedures 2.1 The contractor shall provide the following materials for the performance of work under this contract: A. Cured-in-place Pipe (CIPP) 1. Material Composition. The resin and tube shall meet or exceed all the requirements as approved by the City of Cincinnati Metropolitan Sewer District (MSD) Trenchless Technology Committee and/or the MSD Director (if approved prior to 1998). 2. Installation Procedure. The contractor shall follow applicable processing parameters in accordance with the manufacturer s specific specifications, instructions, and design. The general procedure to install CIPP shall be in general accordance with the appropriate current ASTM Standards and as follows: a) The outside diameter (OD) of the tube shall be sized correctly allowing stretch to fill the existing pipe completely. The existing pipe shall be cleaned of any obstructions or debris and televised prior to tube insertion. b) The wet-out tube shall be inserted through an existing manhole or approved access point by inversion using the application of a hydrostatic head or air pressure, or pulled-in-place and secondarily inflated through the inversion of a calibration hose by the use of a hydrostatic head or air pressure. The hydrostatic head or air pressure shall be sufficient to fully extend the wet-out tube to the next designated manhole or termination point. 16

18 Appropriate gauges shall be used to monitor and record the installation forces and pressures. The placement procedure shall be required to produce dimples at the service connections. c) Curing. After placement is completed, a suitable heat or steam generating source and distribution equipment shall be required to distribute and re-circulate hot water or steam throughout the entire pipe. Temperature and pressure shall be maintained during the curing period as recommended by the resin manufacturer. The heat or steam generating equipment shall be fitted with suitable gauges to monitor the temperature of the incoming and outgoing hot water or steam. Temperature sensors shall also be placed between the liner and host-pipe invert at both ends to monitor cure temperature. d) After adequate cooling and careful release of the water or air pressure, both ends of the liner shall be cut off in the manholes, and live services reinstated. B. Standard Sewer Construction Materials. 1. All proposed manholes shall be type S manholes, Acc. No All manholes on public sanitary and combined sewers shall have standard lids and frames, Acc. No A. The frame shall be securely fastened to the top manhole section by four ¾ stainless steel cinch anchors. The manhole lid shall be Neenah Foundries R or equal. 3. All sanitary and combined sewer pipe shall be PVC, SDR-35, ASTM D-3034 or approved equal. C. Lateral Seals. The MSD Project Engineer shall approve the materials and installation procedures prior to lining. MSD will consider the following products for use on this contract: T- Liner (Performance Liner ), Saddle Liner (Easy Liner), or KA-TE structural grout. Other products shall require additional review and MSD approval prior to its use. This determination shall be final and at the sole discretion of the MSD Project Engineer. 1. Material Composition. The material shall be compatible with the liner coating. 2. Installation Procedure. The contractor shall follow applicable processing parameters in accordance with the manufacturer s specifications, instructions, and design; otherwise, the general procedure shall be as follows: a) When infiltration exists at the repair area, the contractor shall attempt to stop it before installing the lateral seal. b) Preparation of the repair area. The objective is to provide a permanent structural repair; and ensure a watertight seal between the lateral seal, the main line liner, and the lateral opening. The main line shall be cleared of any debris or protrusions. If necessary, the lateral shall be reinstated to a maximum of 100% of the original opening. The liner coating shall be lightly scarified around the lateral connection area. c) Rim-type seal. The rim shall be coated with a polyester or epoxy resin to affix it to the liner coating. The rim or collar shall adhere to the main line interior. d) Cylindrical sleeve or wrap around section. Shall be designed for the pipe diameter and known conditions. This includes any pressures created by a jetting nozzle during cleaning of the main line. The wrap around section shall adhere to the main line interior. 17

19 PART V CONSTRUCTION REQUIREMENTS Section 1. General 1.1 Access to Sewer. Access to sewer to be lined shall be through existing manholes or through access pit excavations prepared at locations approved by the MSD Project Manager. 1.2 Bypassing Sewage Flow. Bypassing sewage flow around the section(s) of sewer to be lined shall be performed by plugging the existing upstream manhole or adjacent sewer system and pumping the sewage to the next unaffected downstream manhole. Pump and bypass lines shall be of adequate capacity and size to handle the flow without sewer backup. Hoses and fittings shall be in good condition, without holes, so as not to cause sewage spills. Sewer service connections within the section to be lined shall be maintained by the contractor as required or temporarily taken out of service to permit lining. The contractor shall be responsible for the continuity of sewage flows and sewer service to each facility connected to the sewer section being lined during the execution of the work. If sewage overflows or backup occurs and enters buildings, the contractor shall notify the MSD Project Manager immediately. The contractor shall be responsible for cleanup, repair, and property damage costs and claims. A copy of a written release shall be furnished to the MSD Project Manager. The contractor and its subcontractor(s) shall coordinate setup to minimize duplicating bypassing efforts. 1.3 Maintaining Flow. It shall be the responsibility of the contractor, throughout the tenure of this contract, to provide and maintain sufficient flow at all times to pass any flash of storm flow of drainage ditches and prevent any backwater flooding due to obstruction caused by construction equipment or materials. The contractor shall be responsible for prohibiting storm or subsurface water from entering the sanitary sewer during lining operations as may be caused by flash floods, high creek waters, heavy rains, etc. 1.4 Retrieval of Materials and Equipment. It shall be the contractor's responsibility to remove materials and equipment that has been lodged in the sewer from cleaning, television inspection, excavations, or rehabilitation operations. If excavation is required, the contractor is responsible for excavation and subsequent repair to prepare the sewer for the liner. Point repairs shall not be measured for payment and are considered incidental to the contract. 1.5 Weekly Schedule. This schedule shall be ed to the MSD Project Manager (or his representative) by 1:00 p.m. every Thursday. This schedule shall outline the sequence in which the contractor proposes to conduct his/her operations the following workweek and shall be approved by the MSD Project Manager before work is started. The contractor shall use a Microsoft Word table or a Microsoft Excel spreadsheet that is in a format approved by the MSD Project Manager. The schedule shall include lining, cleaning and televising, point repairs, restoration, etc. for the upcoming week. The schedule shall also indicate which segments will be lined in the evening after standard working hours. Requests by the contractor to change the schedule are subject to approval of the MSD Project Manager. The contractor may have contingency lines on his/her schedule and line those segments if inclement weather or an act of God prevents the lining of one of the primary segments. 1.6 Method of Construction. The contractor shall describe method of placement, including a drawing for each location to be lined. The drawing shall show access manholes; sewage bypass; traffic control; site specific hazards; and excavation locations, if required, with dimensions, interfering utilities, detailing the width and length of working area, access pit, limits of sheeting required, and the portion of existing sewer which shall be removed to conduct the work; and applicable erosion control plan(s). The drawing can be legibly hand-drawn onto the 8 ½ x 11 site map provided by MSD. 18

20 Section 2. Sewer Cleaning (main line sewer rehabilitation only) 2.1 The contractor shall clean every segment of sewer main that is to be lined. Compliance with this section requires substantial effort towards cleaning, chipping, cutting, grinding, etc. to remove hardened deposits, protruding laterals, roots, solids, and other matter. The contractor shall clear the sewer of protruding service connections, crushed or collapsed pipe, and other obstructions that shall prevent installation and cause damage to the liner, and shall not provide a final lined pipe product as described in Part I, subsection 4.1, of this specification until such cleaning has been completed. The contractor shall provide sewer cleaning equipment that is specifically designed and constructed for sewer cleaning. The contractor shall have a CCTV camera in the sewer during all cleaning operations that involve cutting protruding break-in services, deposit removal and/or any other types of cleaning that may cause additional damage to the sewer. The video generated shall be used as the contractor's verification that the cleaning equipment is not damaging the sewer. No submittal is required for this item and the cost for monitoring the cleaning operation shall be included in the associated unit cost for the cleaning item. This in no way waives the contractor's responsibilities for preventing further damage to the sewer. The intent is to make the contractor aware of potentially destructive cleaning operations in order to stop any such operations before additional damage is caused to the sewer. The contractor will be held fully liable for any damages that are caused by his or her negligence. Solids and debris resulting from the cleaning operation shall be collected and removed from the downstream manhole. The contractor shall be held responsible for any debris that washes into other sections of sewer. The contractor shall remove lost debris and provide documentation to the MSD Project Manager. The contractor shall assume all and complete responsibility for the legal and proper disposal of the debris. Under no circumstances shall sewage solids be dumped onto the surface, street, or into ditches, inlets, or storm drains. Any cleaning required following a point repair would be incidental to the contract and not measured for payment. The contractor is permitted to dispose of the removed debris at the MSD Wastewater Collection (WWC) Facility, 225 W. Galbraith Road. 2.2 MSD recognizes the potential for equipment being used in the sewer during normal operations to become stuck and require excavation for removal. The responsibility for the cost to excavate and retrieve lodged equipment shall be as follows: A. If equipment becomes lodged for reasons not due to negligence on the part of the contractor, MSD will bear all costs to excavate and remove the contractor s equipment and repair the sewer as a normal maintenance function. If a joint decision is made by MSD and the contractor not to excavate, but to instead attempt a forceful removal of the lodged equipment from the sewer, any costs to repair or replace damaged equipment shall be paid by MSD to the contractor at a depreciated value that reflects the condition of the equipment prior to becoming lodged taking into consideration usage, age, and wear to date. The joint decision to extricate by force would be based upon economic conditions and interruption to service. B. If equipment becomes lodged due to negligence on the part of the contractor, such as but not limited to using the wrong size cleaning tool or attempting to clean too much debris and causing the debris to pack tightly behind and around the tool, the contractor shall bear the entire cost to excavate, replace the sewer as required, backfill and restore the area. All permits and fees needed to excavate will be the contractor s responsibility. C. MSD has the right to inspect/televise the location of lodged equipment in the sewer prior to any excavation work to determine the financial responsibility. 19