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SANITARY SEWERS 02 7300-14 A. The CONTRACTOR shall determine if the lateral is common/shared or active prior to abandonment. CONTRACTOR shall be responsible for any additional cost to reinstate the active lateral that is abandoned. 1. The downstream end of the lateral shall be sealed with a manufactured watertight cap/stopper made specifically for the purpose of sealing/capping the end of a sanitary sewer. The cap/stopper shall be installed per manufacturer’s recommendation and in such a way to prevent any source of water from entering the sanitary sewer system. Any device or material that may slide into the lateral and potentially cause a blockage or obstruction in the mainline sewer will not be allowed. The cap/stopper shall be installed on a defect free portion of the lateral immediately before the wye connection to the city main. If defects are found in the wye connection, the CONTRACTOR shall excavate toward the main and the wye shall be removed and replaced with a new portion of equally sized pipe. 2. The remaining portion of the lateral from the point of termination to structure shall be sealed at both ends with a manufactured watertight cap/stopper made specifically for the purpose of sealing/capping the end of a sanitary sewer. The cap/stopper shall be installed on a defect free portion of the lateral. If defects are found then the CONTRACTOR shall excavate the lateral until a defect free portion of the lateral is located. 3. If at least one service from the common lateral is intended to remain, the connecting fitting for the laterals shall be removed and replaced with a new section of straight pipe or an elbow of sufficient angle to provide a smooth transition between the existing portions of the lateral. Elbow shall be a manufactured fitting and shall be installed per manufacturer’s recommendation to assure a watertight seal. 3.06 CLEANING SANITARY SEWERS A. The Project is ready for cleaning when the following work has been completed: 1. All sewer mains and laterals are rehabilitated/installed, backfilled, and compacted. 2. All structures are in place, all channeling is complete, and pipelines are accessible from structures. 3. All other underground facilities, utility piping, and conduits are installed. 4. Placement of aggregate base has been completed. 5. Final air test has been completed. Acceptance of the cleaning shall be based upon the subsequent video inspection of the line. B. CONTRACTOR shall clean all sewer mains in accordance with Section 02 7310 of these specifications by hydraulically flushing, means of pneumatic, and sewer