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FW: ripon farm service work pl Page 2 of 2 <br /> bgs. <br /> • A groundwater extraction well terminating in the shallow water <br /> bearing zone. <br /> • An extraction well pump test for aquifer characterization. <br /> • All wells and borings will be sampled at about five foot <br /> intervals throughout the boring length and analyzed for nitrate and <br /> ammonium. <br /> • An isotope analysis will be conducted on shallow groundwater <br /> obtained from off-site monitoring wells RMW-ISR,RMW-3S and the on-site <br /> extraction well,and will be conducted on deeper groundwater obtained <br /> from offsite wells RMW-1D and RMW 3D. " <br /> and now the conditions: <br /> "Central Valley Water Board staff conditionally concur with the Revised <br /> Work Plan,subject to the following changes. <br /> • Before disposing of aquifer test water,provide evidence that <br /> the discharge location is acceptable to the receiver. <br /> • Provide an updated figure of boring locations that illustrates a <br /> deep boring near the western surface water sump(they can move boring <br /> locations around to meet the request) <br /> • Add an isotope analysis from groundwater obtained from the <br /> deeper water-bearing zone on-site,and identify where it shall be <br /> obtained from. <br /> Please submit the updated figure for Central Valley Water Board staff <br /> concurrence prior to implementing field work,conduct the field work <br /> prior to 31 October 2009,and provide a report of results by 26 February <br /> 2010." <br /> I suspect that the final letter will not be substantially different <br /> than this. Just more verbage. <br /> Thanks for your time, <br /> If you have any questions,you may contact me at(916)464-4680. <br /> Here's the Geotracker link to the work plan <br /> haps•//geotracker.waterboards.ca�ov/regulators/deliverable documents/3431241691/Ripon%20Work%20P1an0709%2Epdf <br /> Amy Terrell <br /> Regional Water Quality Control Board <br /> Central Valley Region <br /> 11020 Sun Center Drive Suite 200 <br /> Rancho Cordova,CA 95670-6114 <br /> (916)464-4680 <br /> aterrell@waterboards.ca.gov <br /> 7/27/2009 <br />