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<br />Version 2/14/2020 Page - 15 Public Works Quote <br />c. The Owner has the authority to delete a sewer segment from the project if the sewer is in <br />such condition that normal cleaning would damage the pipe. <br />d. The Contractor shall only use equipment correctly sized for the diameter of the sewer <br />segment being cleaned, and shall have on the project an adequate number of consumable <br />parts with the appropriate diameters to minimize disruptions related to replacement of worn or <br />broken equipment. <br />11. Manhole & Inlet Cleaning <br />a. All manholes and inlets encountered shall be thoroughly cleaned of all foreign materials, <br />obstacles, and buildups. This shall include, but is not limited, to removing grit, sand, silt, <br />leaves, debris, rocks, bricks, sticks, and sludge from the manhole or inlet. <br />b. The intent of the project is to clean the manholes and inlets simultaneously with the storm <br />sewer cleaning and televising operation. <br />c. This work is considered incidental to the cleaning of the storm sewers. It will not be paid for <br />on a separate basis. <br />12. Storm Drain Dewatering <br />a. When sewer flow depth is greater than 25 percent, flow depth must be decreased by plugging <br />and/or bypass pumping. Plugs shall be designed to pass any desired portion of sewage flow. <br />If bypass pumping is required for sewer cleaning operations, Contractor shall provide all <br />necessary equipment, manpower, and expertise. Contractor is responsible for all damage to <br />public or private property resulting from these operations. Bypass pumping shall require <br />proper filtration prior to discharge release. <br />b. For systems with submerged or partially submerged outfall(s) the Contractor shall plug the <br />system, where and as needed, to allow the cleaning or cleaning and Television Inspection to <br />proceed. <br />c. During the television inspection process, every effort shall be exerted to obtain a full view of <br />the pipe interior. For instances where the camera lens becomes submerged or where a large <br />portion of the pipe shall contain water, and these conditions persist for significant portions of <br />the sewer being inspected, the Contractor shall dewater the pipe. <br />d. Dewatering can be accomplished with a pump and discharge hose or by the nozzle of a <br />hydraulic high-pressure jet machine. If the jet machine is used, it shall precede the television <br />camera through the sewer pipe. The nozzle of the jet machine shall work in conjunction with <br />the television camera’s motion and be positioned so that several feet of pipe length can be <br />viewed by the camera. The dewatering procedure shall move standing or ponded water <br />through the storm drain to a point within the storm drain downstream of the reach being <br />inspected. <br />e. Due to anticipated high ground water elevations, it is anticipated that the groundwater water <br />levels at the existing pond area will need to be depressed in addition to the normal <br />dewatering measures associated with sewer cleaning outlined above. <br />f. Dewatering of pipes are considered part of the Construction Dewatering Pay Item. <br />13. Project Cleanup <br />a. The Contractor shall leave all cleaning and televising sites neat and clean. The Contractor <br />shall not allow trash and debris to accumulate during the cleaning and televising period and <br />shall remove all trash and debris before final acceptance will be granted. <br />b. Unless otherwise approved, the Contractor will not be allowed to store equipment or <br />materials or debris on the City right-of-way, City property, or on private property. <br />c. Above ground surfaces along the line of the maintenance work shall be restored to conditions <br />equal to or better than those found at the start of the work. <br />d. Project cleanup shall not be measured for payment. Cleanup shall be considered incidental <br />and included in the respective contract unit prices. <br />14. Payment <br />a. Contractor’s compensation for sewer cleaning will be calculated together with storm sewer <br />inspection and televising by multiplying the number of linear feet of storm sewer cleaned and <br />televised times the unit price per linear foot for Clean Storm Sewer and Televise Storm <br />Sewer and shall be based on diameter of the pipe as indicated in the quote. All of the <br />Contractor’s costs for labor, equipment, materials and incidentals necessary for this work <br />shall be considered included by the Contractor in said proposed unit prices. The cost of the <br />sewer televising work shall include all information supplied to the City such as external hard <br />drives, hardcopy reports, electronic files, time spent converting data formats and other