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i <br /> a <br /> ENVIRONMENTAL HEALTH DEPARTMENT <br /> P—_-�' c L,Quit,7� SAN JOAQUIN COUNTY <br /> Unit Supervisors <br /> Donna K� Heran,R E H S' , Third Floor Carl Borgman,R E H s <br /> 304 East Weber Avenue <br /> Director Al Olsen,P E H s Stockton, California 95202-2708 Mike Huggins,R E H S,R D I <br /> Douglas W Wilson,R EH S <br /> Prod ani Manager (209) 468-3420 Margaret Lagono,R E H S <br /> ��I F O Ft Laurie A Cotulla,R E H S <br /> Fax (209) 464-01 38 Robert NtcClellon R E H S <br /> ' Program Manager Mark Barcellos,R E H S <br /> LIGAYA REYES IBANEZ <br /> CALIFORNIA HWY PATROL <br /> P 0 BOX 942989 <br /> SACRAMENTO CA 94298-0001 <br /> RE California Highway Patrol <br /> 385 M1 Grantllne Rd <br /> Tracy, CA <br /> WORKPLAN Workplan for Groundwater Contamination Investigation <br /> ' DATED January 27, 2004 <br /> PREPARED BY Winzier & Kell <br /> 1 APPROVED X <br /> DISAPPROVED ❑ <br /> ADDENDUM ❑ Submit by <br /> ADEQUATE AND NECESSARY ELEMENTS OF THE WORKPLAN [Health & <br /> Safety Code (H&S) Section 25299 37(c)(3)] <br /> ' 1 Installation of a deep screened monitoring well Proposed depth 30 to 35 <br /> feet Collection of soil samples <br /> 2 Collection of groundwater samples from the four monitoring wells <br /> Analysis of soil and groundwater samples for TPH-g using EPA Method <br /> 8015M and BTEX and 5 oxygenates using EPA Method 8260 <br /> 3 Preparation and submittal of an investigative reporE of the work <br /> COMMENTS AND CONDITIONS <br />� 1 Groundwater samples are to be collected from the monitoring wells and <br /> analyzed quarterly not semi-annually <br /> 2 All monitoring wells are to to be measured to mean sea level using GPS <br /> technology and the information submitted to the State Water Resources <br /> Control Board Geotracker web site <br /> • 3 Soil samples are to be collected at a minimum of every 5 lineal feet to the <br /> bottom of the boring, this includes samples collected beneath <br /> 1 <br />