Agmt15 Professional Pipe Services

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EXH- SCOPE OF WORK. DEADLINE AND PAYMENT TERMS PROJECT DESCRIPTION: Cbsed circu� television (CCN) inspection, and cleanng for that purpose, of selected pQelines n sanitary sewer basins 5A and 5D. SCOPE OF WORK: The scope of work described herein is the minimum necessary to meet the City's objectives. The CONTRACTOR's expected to expand on the scope by ncorporating their expertise and proposed method of approach. The scope of work for the project shall inciude the furnishing of all labor, materials, and equipment necessary to clean the sewer pipelnes,inspect manholes and provide a closed- circu� telev'sion nspection in dig�al format of the sewer pipelines listed above. The word "clean" is defined as the removal of all accumulations including sludge, dirt, sand, rocks, grease, roots, and other solid or sem'soid material�the pipe and manhole. Cleaning The CONTRACTOR shali perfo�rn a mhimum of two (2) passes using the high-vebcity hydraulic cleaning method. The contractor shail clean the line until the ine is ready for cbsed-circuit television nspection that is acceptable to Cty. No additional compensation will be made to the CONTRACTOR n performing three or more passes in cleaning the sewer line. All pipe cleanng cost method and duration shall be ncluded in the agreed cost 'rrespective of the type and size of the existing sewer ines. f a video and/or the capture inages inthe database do not clearly show the p�e conditions due to nadequate clean-up or are of such poor quality that the Engineer's unable to evaluate the conditan of the sewer or bcate sewer service connections, the CONTRACTOR shall re-televise that section of the pipe at CONTRACTOR'S expense. The CONTRACTOR shali protect the manholes to withstand forces generated by equipment, water, and air pressure.The CONTRACTOR shall clean the sewer pipe of any obstruction and debris ncluding roots in accordance with the "Standard Specifications for Public Wo�ks Construction (Green book)", latest edition. CONTRACTOR shall use a jet/vacuum combination unit for deaning all sewer lines. The combination unit shail operate at 80 gallons per minute at a pressure of 2,500 psi, and be equipped with approximately 800 linear feet of hose. CONTRACTOR' S operating technicians shall have a minimum of 3 years of experience cleaning with this piece of equQment. CONTRACTOR shall clean the hes in a downstream di�ectian, beginning from the most upstream manhole of a particular reach or set of reaches, and begn cleaning so that the debris will continually be pulled downstream. In order to jet clean the lines, a high pressure water pump on the combination truck shall deliver water from attached tanks through a high pressure hose to a cleaning noale. The water pumped through the cleaning noale shall propel the nozzle and attached high pressure hose through the sewer. Once the cleaning noule has arrived at an upstream manhole, the noule shall be pulled back through the ppe at a veloc�ty controlled by the operator. During the cleaning process, the cleaning noule will not travel faster than one foot per second in the line.While the cleaning noule is pulled back, the vacuum system shall be used to simu�aneousy remove debris flushed bythe cleaning nozzle. REV:OS-22-15 Page 6 of 12 ATTY/AGR.2015.102/Professional Pipe Services