Specifications include, but are not limited to: The awarded Contractor shall provide all required services including dive team, ingress and egress of caisson (which is considered a confined space structure), Hydrogeologist, testing equipment, data loggers, video camera, monitoring equipment and other equipment necessary to provide a complete report on current conditions and recommendations on the status of each collector well. All work shall be supervised by a Hydrogeologist well versed in the operation and performance of radial collector wells. 3.1.2 Measurements of collector well pumping rate and water levels in the collector and nearby observation wells under normal operating conditions. 3.1.3 The water level measurements will be obtained at appropriate intervals throughout the monitoring period using an electric water level probe with automatic data collection and storage capable of being downloaded to a personal computer. Collector pumping rates will be controlled by City staff and monitored using a flow meter installed in the pump house. 3.1.4 The relative flow and water temperature from each lateral to be determined by utilizing a flow meter and telethermometer held by the Diver directly in front of each lateral inlet valve and monitored at the surface by the Hydrogeologist. 3.1.5 Underwater observations will be made by the Diver concerning the general condition of the collector well and communicated to the Hydrogeologist. In addition, the physical condition of valves, pump column, the interior of each lateral immediately adjacent to caisson, amount and description of any encrustation present along with amount and type of material on caisson floor. 3.1.6 Evaluate each well utilizing a step performance test. Pumping rates should cover 50%, 75% and 100% of well capacity. The well should be pumped a minimum of 2 hours per step listed above. Relative flow and lateral temperature need to be monitored only during the final hour of the pumping test. All test results shall be evaluated against original performance data. 3.1.7 An underwater video utilizing a color camera operated by the Diver will be used on each well. In addition to recording the condition of below water components of each collector well (caisson, pumps, valves & laterals), the camera will also be inserted into each lateral to obtain a permanent record of the condition of laterals. 3.1.8 Observations will be made by the Hydrogeologist of above water structures slab, access hatch, pump motors, pump column, discharge piping and caisson. 3.1.9 The Diver shall operate any isolation valves currently installed on well laterals...
