Laserfiche WebLink
• Date(s) and time of well development. <br /> • Static water level from the top of well casing. <br /> • Quantity of fluid in well prior to development standing in the well and contained in <br /> saturated annulus (assume 30 percent porosity). <br /> • Field measurement of pH before, twice during, and after development using an <br /> electrometric device (EPA 150.1 - Methods for Chemical Analysis of Water and Wastes, <br /> EPA 600/4-79/020). <br /> • Field measurement of specific conductance before, twice during, and after development <br /> using a conductivity meter(EPA 150.1 -Methods for Chemical Analysis of Water and <br /> Wastes, EPA 600/4-79/020). Conductance and pH readings will be obtained <br /> concurrently. <br /> • Depth from top of well casing to bottom of well. <br /> • Screen length. <br /> • Depth from top of well casing to top of sediment inside well, before and after <br /> development. <br /> • Physical character of removed water, to include changes during development in clarity, <br /> color, particulates, and odor. <br /> • Type and size/capacity of pump and/or bailer used. <br /> • Description of surge technique. <br /> • Height of well casing above ground surface. <br /> • Quantity of fluid/water removed and time for removal (present both incremental and total <br /> values). <br /> A minimum of 10 well pore volumes should be removed from the well for development. This <br /> volume will not be counted toward the volumetric removal requirements of any pre-sample <br /> purging. <br /> Following completion of the work, the contractor will remove from the premises and work areas <br /> all excess materials, tools, and equipment used in the execution of the work, and will properly <br /> dispose of all construction and development debris. <br /> French Camp-Monitoring Well Installation Workplan 6 SAB027100 <br /> September 2006 CADocuments and Settings\mlagorio\Local Settings\remporary Internet Files\OLK9F\Work Plan <br />