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8.5 Agr Sani Sewer RehabCITY OF SALINA REQUEST FOR COMMISSION ACTION DATE TIME 04/07/97 4:00 P.M. AGENDA SECTION: ORIGINATING DEPARTMENT: APPROVED FOR NO. 8 AGENDA: Engineering & Utilities NO. 5 BY: Don Hoff BY: ~ Item Approval of a proposal from Insituform Plains, Inc. to rehabilitate a sanitary sewer pipeline. Backeround As you may recall, Mowery Clinic received permission recently to construct an expansion to their facility that involved positioning the new structure in a public utility easement. They were required, however, to properly protect an existing 21" diameter public sanitary sewer located in the easement. After several meetings with representatives of Mowery Clinic to discuss various protection options, it was concluded a trenchless method would best serve the City's and Mowery's interests. We contacted a company with considerable experience in this area to investigate this option and submit a priced proposal to line approximately 530 L.F. of 21" diameter sewer main between Elmore Dr. and Roach St. with a resin impregnated tube (Insitupipe) placed inside the existing main. This liner will add structural strength and provide chemical resistance to the existing sanitary sewer system. The total cost of the proposal submitted was $62,375. Mowery Clinic has agreed to pay $13,534.38 as their share of the liner for constructing over the west portion of this sewer main. We should be able to recover a similar amount in the future if other building activity occurs in the utility easement between the two Mowery facilities. This project would be funded under System Enhancement (Wastewater Division - 1997 Budget). Only Insituform Plains, Inc., Wichita can perform this type of work in our area and their work schedule will allow the Mowery Clinic expansion to proceed without delay and with minimal interruption to their existing clinic. COMMISSION ACTION MOTION BY SECOND BY THAT: CITY OF SALINA REQUEST FOR COMMISSION ACTION DATE TIME 04/07/97 4:00 P.M. AGENDA SECTION: ORIGINATING DEPARTMENT: APPROVED FOR NO. AGENDA: Engineering & Utilities ITEM NO. BY: Don Hoff BY: Recommendation We have reviewed the proposal as submitted and conclude the scope of work and schedule will provide the additional pipe strength to adequately protect our pipeline and also satisfy Mowery Clinic's needs. It is recommended the City Commission approve the attached proposal as submitted by Insimform Plains, Inc. in the amount of $62,375. Attachment: Proposal ResolutJ_on Number 97-5141 I rl.slCU® I ~ · PLAINS, INC. Trenchless Pipeline Technologies February 24, 1997 City of Salina, Kansas City Hall-300 W. Ash Salina, KS 67402-0736 Attention: Mr. Don Hoff, City Engineer PROPOSAL Insituform Plains, Inc. proposes to furnish all labor, equipment and materials required to reconstruct the 530 lineal feet of 21 inch diameter sanitary sewer described below, using the Insituform process for trenchless pipeline reconstruction, all in accordance with the Construction Specifications and the "Standard Proposal Terms and Conditions", attached. These attachments should be reviewed carefully since they contain the detailed particulars of this proposaL Project Description. The subject sanitary sewer section runs parallel to and a half block North of Crawford Street, from the manhole (#.47) in Roach Street to the manhole (~45) in Elmore Street, with one intermediate abandoned manhole. Insituform Pipe Wall Thickness. We propose to use a wall thickness of 0.37". By-pass Pumpin.q and Traffic Control. The City, utilizing their own forces and equipment, has agreed to furnish by-pass pumping and traffic control for the project. Proposed Contract Price. We propose to perform the work described herein for a Lump Sum price of $62,375.00. Project Schedule.. The project would take three to four days to complete. The time for commencement is negotiable. In order to avoid the disruption of the Clinic and other businesses on this line, the inversion would be scheduled to begin at noon on a Saturday. We would need the by-passing and traffic control operating by 8:00 am Friday morning to allow time for cleaning and identifing service connections before the inversion. We would be finished by the beginning of business on the following Monday morning. (Continued) 4421 W, Harry. Wichita, Kansas 67209 · 1-800-292-6329. Fax: (316) 942-4012 This proposal is submitted in duplicate for consideration by the City of Salina. If the City wishes to proceed with this project please sign and return one copy of this proposal and issue a Tax Exemption Certificate. By the execution of the signature lines below both parties mutually agree to the stipulations contained herein. ACCEPTANCE OWNER CITY OF SALINA, KANSAS By. CONTRACTOR INSITUFORM pxLAINS, INC. INSITUFORM PLAINS, LNC. STANDARD PROPOSAL TERMS AND CONDITIONS Proposal Inclusions The prices stated in this proposal include: * Contract Bonds * Certificate of insurance with standard coverage's * Mobilization and demobilization * Pipeline cleaning * Preliminary video and service connection identification * Insitutube wetout, inversion, curing and finishing * Active service connection reinstatements * As-built video inspection and video tape * Standard one year warranty Proposal Exclusions Not included in the prices stated in this proposal are costs associated with the items listed below. These items would be at an additional cost or would be furnished by others at no cost to the contractor: * By-pass pumping of sewage and traffic control by others * Premiums for special insurance coverage requirements * Water from a fire hydrant or other high volume source within a convenient distance from each inversion location * Water meter charge or deposit * Point repairs ( none required according to video tape of line ) * Manhole rehabilitation and/or replacement * Permits or licenses * Sales and/or use taxes. Owner to furnish Contractor with a tax exemption certificate. If this is not a tax exempt proiect add 5.9% to the Contract Price * Construction access easements * Disposal site for debris resulting from cleaning * If any hazardous or toxic materials are encountered during the project, the Owner will be responsible for the removal and disposal of the materials. * Limits of liability. In consideration of Contractor's agreement,to maintain not less than $10,000,000 of comprehensive general liability insurance in the form required by the Contract, Contractor's liability to the Owner for any matter covered by such insurance will be limited to the extent of such insurance and the Owner will indemnify and hold Contractor harmless from any third party claims covered by such insurance to the extent such claims exceed the limits of such insurance. Neither party shall be liable to the other for consequential damages relating to the contract. In case of conflict between this provision and any other provision in the Contract as ultimately executed, this provision shall govern and prevail. conflict between this provision and any other provision in the Contract as ultimately executed, this provision shall govern and prevail. Proposal Terms Final payment due within thirty days of completion of the project Prices stated are in effect for ninety days from the date of this proposal and may be extended at the sole option of Insituform Plains, Inc. SPECIFICATIONS FOR INSITUFORM® 1. INTENT 1.1 It is the intent of this specification to provide for the reconstruction of pipelines and conduits by the installation of a resin-impregnated flexible tube (Insitutube®) which is inverted into the original conduit by use of a hydrostatic head. The resin is cured by circulating hot water within the tube. When cured, the finished Insitupipe® will be continuous and tight fitting. 2. REFERENCED DOCUMENTS 2.1 This specification references ASTM F1216 which is made a part hereof by such reference and shall be the latest edition and revision thereof. In case,of conflicting requirements between this specification and ASTM F1216, this specification will govern. The methods, materials and workmanship shall also meet the standards of Insituform Technologies, Inc.,'Memphis, Tennessee, the Licensor of the process, and the manufacturer of the Insitutube. 3. PRE-QUALIFICATION 3.1 'Only bids for pre-qualified products will be read. Bids submitted for products or from Contractors that have not been pre-qualified will be returned unopened. The Contractor and the proposed method of reconstruction and the product manufacturers name shall be clearly identified on the bid envelope. 4. MATERIALS 4.1 Tube - The tube material shall meet the requirements of ASTM F1216, Section 5.1. 4.1.1 The tubes shall have a uniform thickness that when compressed at installation pressures will equal the specified nominal tube thickness. 4.1.2 The tube shall be fabricated to a size that when installed will tightly fit the internal circumference and length of the original pipe. Allowance should be made for circumferential stretching during inversion. 4.1.3 The outside layer of the tube (before inversion) shall be plastic coated with a translucent flexible material that clearly allows inspection of the resin impregnation (wetouD) procedure. The plastic coating shall not be subject to delamination after curing. 4.1.4 The tube shall be homogeneous across the entire wall thickness containing no intermediate or encapsulated elastomeric layers. materials shall be included in the tube that are subject to delamination in the cured Insitupipe. No -1- 9303INSIT 4.2 5. 5.1 5.2 5.3 6~2 6.3 o 4.1.5 The wall color of the interior pipe surface of the Insitupipe after installation shall be a light reflective color so that a clear detailed examination with closed circuit television inspection equipment may be made. Resin - The resin system shall meet the requirements of ASTM F1216. STRUCTURAL REQUIREMENTS The Insitupipe shall be designed as per ASTM F1216, Appendix X1. The design shall assume no bonding to the original pipe wall. The layers of the cured Insitupipe shall be uniformly bonded. It shall not be possible to separate any two layers with a probe or point of a knife blade so that the layers separate cleanly or the probe or knife blade moves freely between the layers; nor shall separation of the layers occur during testing performed under the requirements of this specification. The cured Insitupipe shall.conform to the minimum structural standards, as listed below. Cured Pipe Standard Results Flexural Stress ASTM D-790 4,000 psi Modulus of Elasticity ASTM D-790 400,000 psi TESTING REQUIREMENTS Chemical Resistance The Contractor shall certify that the Insitupipe shall meet the chemical resistance requirements of ASTM F1216, Appendix X2. Samples for testing shall be of tube and resin system similar to that proposed for actual construction. It is required that samples with and without plastic coating meet these chemical testing requirements. Hydraulic Capacity - The Contractor shall certify that the Insitupipe shall have a minimum of the full flow capacity of the original pipe before rehabilitation. Calculated capacities may be derived using a commonly accepted roughness coefficient for the existing pipe material taking into consideration its age and condition. The roughness coefficient of the Insitupipe shall be verified by third party test data. Insitupipe Field Samples - When requested by the Owner, the Contractor shall submit test results from previous field installations of the same resin system and tube materials as proposed for the actual installation. These test results must be relevant to the size and nature of this pending project and verify that the Insitupipe physical properties specified in Section 5.3 have been achieved in previous field applications. Testing samples for this project shall be made and tested as described in Section 10.1. INSTALLATION RESPONSIBILITIES FOR INCIDENTAL ITEMS It shall be the responsibility of the owner to locate and designate all manhole access points open and accessible for the work, and provide rights of access to these points. If a street must be closed to traffic because of the -2- 9303INSIT 7.2 7.3 7.4 7.5 orientation of the sewer, the Owner shall institute the actions necessary to do this for the mutually agreed time period. The Owner shall also previde free access to water hydrants for cleaning, inversion and other work items requiring water. Cleaning of Sewer Lines The Contractor, when required, shall remove all internal debris out of the sewer line that will interfere with the installation of the Insitupipe (refer to sewer cleaning specifications contained elsewhere in this document). The Owner shall also provide a dump site for all debris removed from the sewers during the cleaning operation. Unless stated otherwise, it is assumed this site will be at or near the sewage treatment facility to which the debris would have arrived in absence of the cleaning operation. Any hazardous waste material encountered during this project will be considered as a changed condition. Bypassing Sewage The Contractor, when required, shall provide for the flow of sewage around the section or sections of pipe designated for repair. The bypass shall be made by plugging the line at an existing upstream manhole, and pumping the flow into a downstream manhole or adjacent system. The pump and bypass lines shall be of adequate capacity and size to handle the flow. The Owner may require a detail of the bypass plan to be submitted. Inspection of Pipelines Inspection of pipelines shall be performed by experienced personnel trained in locating breaks, obstacles and service connections by closed circuit television. The interior of the pipeline shall be carefully inspected to determine the location of any conditions which may prevent proper installation of the Insitutube into the pipelines, and it shall be noted so that these conditions can be corrected. A video tape and suitable log shall be kept for later reference bY the Owner. Line Obstructions It shall be the responsibility of the Contractor to clear the line of obstructions, such as solids and roots that will prevent the insertion of the Insitutube. If pre-installation inspection reveals an obstruction such as a protruding service connection, dropped joint, or a collapse that will prevent the inversion process, and it cannot be removed by conventional sewer cleaning equipment, then the Contractor shall make a point repair excavation to uncover and remove or repair the obstruction. Such excavation shall be approved in writing by the Owner's representative prior to the commencement of the work and shall be considered as a separate pay item. INSTALLATION The Insitupipe installation shall be in accordance with ASTM F1216, Section 7, with the following additional requirements: 8.1.1 Resin Impregnation - The quantity of resin used for tube impregnation shall be sufficient to fill the ~olume of air voids in the tube with additional allowances for polymerization shrinkage and the loss of resin through cracks and irregularities in the original pipe wall. A vacuum impregnation process shall be used. A roller system shall be used to uniformly distribute the resin throughout the tube. 9303INSIT -3- 8.1.2 8.1.3 Temperature gauges shall be placed to determine the gemperature of the incoming and outgoing water from the heat source. Another such gauge shall be placed inside the tube at the remote end to determine the temperature at that location during the cure cycle. Installation and curing shall be accomplished by inversion utilizing water under hydrostatic pressure of a vertical standpipe. Compressible gases such as air or steam are not allowed. 9. REINSTATEMENT OF BRANCH CONNECTIONS 9.1 It is the intent of these specifications that branch connections to buildings be reopened without excavation, utilizing a remotely controlled cutting device, monitored by a video TV camera. The Contractor shall certify he has a minimum of 2 complete working cutter units plus spare key components on the site before each inversion. No additional payment will be made for excavations for the purpose of reopening connections and the Contractor will be responsible for all costs and liability associated with such excavatioN and restoration work. 10. INSPECTION 10.1 Insitupipe samples shall be prepared and tested in accordance with ASTM F1216, Section 8.1 using either method proposed. 10.2 Leakage testing of the Insitupipe shall be accomplished during cure while under a positive head. Products in which the pipe wall is cured while not in direct contact with the pressurizing fluid (e.g., a removable bladder) must be tested by an alternative method approved by the Owner. 10.3 Visual inspection of the Insitupipe shall be in accordance with ASTM F1216, Section 8.4. 11. CLEAN-UP 11.1 Upon acceptance of the installation work and testing, the Contractor shall reinstate the project area affected by the operations. 12. PAYMENT 12.1 Payment for the work included in this section will be in accordance with the prices set forth in the proposal for the quantity of work performed. Progress payments will be made monthly based on the work performed during that period. -4- 9303INSIT