25B - AGMT - CLOSED CIRCUIT TV INSPECTION OF SEWER

Home Browse Search

A. SEWER CLEANING: EXHIBIT A All sewers shall be cleaned within 24 hours prior to CCTV inspection except as directed otherwise by the Engineer. Cleaning shall include removal of grease, roots, debris and other obstructions to facilitate the CCTV inspection. All costs associated with the cleaning of sewers and sewer manholes shall be borne by the contractor. These borne expenses include and are not limited to water usage, and fees related to obtaining and securing a hydrant water meter from the City. Contractor shall return water hydrant meter to the City on an annual basis. The contractor firm shall use the appropriate nozzle or cutter head, (i.e. high velocity, water jet, root cutter, etc.), to accomplish the cleaning as required for that particular reach of sewer. Cleaning methods shall be employed to sufficiently clean the pipe so the camera can pass and can fully ascertain and document the structural and operational condition of the pipe. Any costs associated with CCTV inspection work that is necessitated by the contractor's failure to sufficiently clean the main shall be borne entirely by the contractor. The contractor shall use a tablet PC with infraMAP® software, supplied by the City, to record the location of the cleaning operation and the conditions encountered for each section of sewer main that is cleaned. The contractor shall be trained by the City in the use of infraMAP& At the end of each day that work was performed, the contractor shall synchronize the tablet PC with the City's databases at the City Corporate Yard facilities. The tablet PC shall be delivered along with the digital video, logs and other materials when a designated areaof work has been completed. The City reserves the right to use both the comprehensiveness and completeness of the cleaning reports along with the cleanliness of the pipe as evidenced by the supplied video to ascertain whether the pipe was cleaned sufficiently. Any costs required to re-clean either an unreported or an insufficiently cleaned main shall be borne entirely by the Contractor. B. TELEVISION INSPECTION: 1. The contractor shall visually inspect, digitally encode video in WMV format (or another format if mutually agreed upon) and provide digital logs, in PDF format, of all inspected City of Santa Ana, PWA RFP - Closed Circuit Television (CCTV) Inspection of Sanitary Sewer Mains sewers. The log and video formats shall be approved by the City prior to commencement of work. Only portable hard drives and flash drives are accepted as specified on item #4. 2. The contractor shall use equipment specially designed and constructed for sewer inspection and video recording. The camera must have light sources of suitable illumination output to provide a clear picture of the entire periphery of pipe. The camera must be able to be rotated to a position that will assure that the total periphery of the sewer is in focus at all times, regardless of the diameter of the pipe being inspected. The camera, transport system, and other components of the video system shall be capable of producing a picture adequate for the purposes of the inspection as stated herein. The adequacy of the proposed equipment, resulting video and the assessment logs shall be demonstrated to the City, if so requested, prior to award of contract. The cost of such demonstration shall be borne by the Contractor. 3. A cable footage counter, accurate to within one (1) foot in 1000 feet, shall be used and shall be indicated on the monitor and recorded on the video. The date of inspection, continuous forward and reverse readout of camera distance from referenced access hole, the upstream and downstream manhole with an arrow indicating flow direction (or the database number, run number and direction of flow), the 25B-11