INSPECTION Inspection services may apply to any and all sewer collection system infrastructure, primarily pipes and manholes of varying size and material. Specific equipment to be used must include closed-circuit television (CCTV) with sufficient lighting to allow observation and recording of defects, small-diameter push camera, lateral-launch mainline camera, sonar equipment, and acoustic Sewer Line Rapid Assessment Tool (SL-RATTM). Contractor must list and describe all inspection techniques and equipment available in its proposal. The CCTV inspection information received from the Contractor must be compatible with the current software version being used by Metro Water Services (Granite.Net 2019), and utilize PACP codes and reporting so that the software program can assign inspection data, attach video, and update inspection information for assets in the Computerized Maintenance Management System and version being used by Metro Water Services (currently Hansen Information System). All CCTV inspection operators must be PACP certified. All cameras must be operative in 100 percent humidity conditions. Video quality and definition shall be to the satisfaction of the Contractor Manager. Sewer line video shall include video of all manholes on the line segment including invert, walls, and any other components. If inspection of a sewer line segment cannot be completed from one end, the contractor must perform a reverse setup to complete the inspection at no additional cost to Metro. CCTV equipment/software must be capable of producing digital still images from the inspection in .jpeg format. Inspections must be performed in low-flow conditions in which the pipe is approximately 20% full or less unless otherwise directed by Contractor Manager. The contractor is expected to control flow to reach these conditions if necessary at no additional cost to Metro. Camera equipment must be equipped with a sonde-type locating device. Contractor must deliver CCTV data to MWS directly from CCTV equipment/truck each Monday or as directed by the Contractor Manager. All other data including SL-RAT must be delivered in the format required by MWS on a regular basis or as directed by the Contractor Manager. The Contractor must deliver an inspection log in the format specified by MWS including, at a minimum: location and description of each defect/damage, location of each service connection, location and length of any pipe sag, and pipe material, depth, and diameter. Payment for deliverables will be made only after MWS review and approval. Contractor must maintain the same inspection software and version (planned transition to Granite.Net in 2019) and other required software as MWS System Services Division. Bidding contractors will be given a test assignment using Granite as part of their evaluation. Required Granite Test All prospective bidders shall complete a test CCTV inspection using Granite in the version required by MWS. Nashville Metro Water Services will provide a flash drive with a database loaded that has a line segment with asset I.D. information from the Nashville Granite database. The prospective bidder shall synchronize the CCTV database and the Hansen Code database to their truck Granite inspection units. The prospective bidder shall complete the CCTV inspection in this database using Granite with video and coded with PACP observation codes. The Nashville Hansen Code System uses PACP coding and will be loaded onto the flash drive along with the CCTV database. It will be the responsibility of the bidder to load the code system and the CCTV database to their Granite truck databases and complete the inspection using at least three different structural problem codes and three different OandM problem codes.
