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our field. All Vactor units have 9-yard debris tanks and Positive Displacement pumps. The <br />Vac -Con unit has a 12-yard debris tank and uses a 3-stage fan. All combination vehicles have <br />the capabilities of 80 GPM at 2500 PSI. <br />Work Plan <br />Houston & Harris PCS, Inc. proposes the following procedures: <br />Sewer Hrdrowashinp <br />Hydrowashing shall be completed within 24 hours prior to video inspection. Various size <br />nozzles, chain flails, and root saws will be used to accommodate all sizes of pipe for the removal <br />of grease, roots, debris and other obstructions. All cleaning will be done with the flow, starting at <br />the downstream manhole and proceeding to the upstream manhole. Debris will then be removed <br />by vacuuming using one of several combination cleaning trucks. All debris will be disposed at <br />a city approved location. Houston & Harris PCS, Inc. will acquire a water meter from the City <br />of Santa Ana to accurately monitor water consumption. Video operators are in constant contact <br />with cleaning crews to ensure that any line not sufficiently cleaned can be re -cleaned without <br />delay. <br />CCTV Video Inspection <br />Houston & Harris PCS, Inc. trains all video operators involved with each project on the <br />requirements of the City's scope of work to ensure all specifications are met. Televising will <br />consist of real time image capture on VHS tapes to later be converted to a digital format by the <br />City. Operators will give audio narration of all information pertinent to the inspection to include, <br />but not limited to, street name or location of sewer if not in the street, date and time of <br />inspection, name of consultant, name of operator, pipe size, pipe material, address and City <br />designated starting and ending manhole numbers, direction of inspection, video tape number and <br />all observations, comments, and laterals referenced to the footage counter. Inspections of sewer <br />mains with high volume of flow (1/3 full or more) will be completed during a low flow period. <br />All cameras have suitable illumination to provide a clear picture of the entire peripheral of the <br />pipe. <br />Inspections will begin with the camera looking down the invert of the starting manhole. <br />The camera will then be lowered uninterrupted to the center of the manhole. The footage will be <br />calibrated at this time to document accurate footages at all defects, laterals, and manholes. <br />Inspections will consist of assessment of laterals, indicated infiltration, cracks, deflected joints, <br />collapsed sections, ex -filtration, misalignment, roots, debris, and all other conditions pertinent to <br />the physical condition of the sewer. All observations and pipe ratings conform to the US-WRC <br />assessment code format, and all VHS tapes are numbered using City specified designations. All <br />lines that are unable to be completed from the original set-up point will be attempted from the <br />opposite manhole up to it's overlap point. Any lines that do not correspond to the City's <br />database/map will be documented and brought to the City's immediate attention. <br />17 <br />