2000-201 - Laserfiche WebLink

Home Browse Search

CJ i C�l Subsurface Facilities Task 1.0 Kickoff\Schedule Determination Meeting A meeting shall be held prior to the mobilization of the contractor to any of the well sites with the Indian River County Utilities Department, Engineer, and the Contractor at the WTP administration building. The purpose of the meeting is to discuss the proposed scope of work, coordination contacts, site constraints, procedural requirements of the County project work schedule determination, and progress review schedule. The assignment of and responsibilities for the various tasks shall also be discussed. Task 2.0 Sample Collection Water samples from each of the six wells shall be collected by the Contractor at least five days prior to the pump efficiency test. This water quality data will be combined with water quality reports supplied by the County, and be used to formulate the proper chemical blend needed to eliminate the risk of formation plugging, casing damage, and chemical interactions. Data obtained from the sampling and the proposed chemical treatment shall be provided to the County and the Engineer at least five working days before treatment is conducted. Task 3.0 Mobilization and Demobilization All equipment, materials, and labor required to conduct the work shall be provided by the Contractor. Included under this task is mobilization of labor, materials, and equipment to the well site, all setups, site preparation, moving, rigging up, maintaining, and demobilization including rigging down, cleaning, and restoring the site to its previous condition. Task 4.0 Access Port Construction The Contractor shall construct an access port in base of the pump motor at well nos. 1, 2, 3, and 4 for the purpose of inserting a water level indicator between the pump column/casing annulus so that specific capacity tests may be performed. The ports of all six wells will be tapped so that a threaded plug may be used to seal the wells. The threaded plug shall be provided by the Contractor. The diameter of the access port shall be sized so that a pressure transducer and 4-20 mA cable can be installed on a permanent. basis on all six wells. Task 5.0 Baseline Well Efficiency Test To establish existing performance conditions, a pump efficiency test shall be conducted before the pump is removed at cacti well. This test is performed to determine pump curve correlation and specific capacity. The contractor shall gather test data including flow rate, pressure, sediment content, static water level, pumping water level, volts, amps, ohms, kilowatts, and vibration level. Information shall be gathered at three separate performance rates. Each well is equipped with a flow teeter. Flow will be directed from the discharge pipe to the ground area surrounding the wells. The existing flow teeters shall be calibrated by either measuring the time it takes to fill a container of known volume or measuring the resistance to flow through an orifice plate. ,b] 02