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' Working To Restore Nature <br /> WORK IN PROGRESS <br /> An encroachment permit has been obtained from the San Joaquin County Public Works <br /> ' Department to install offsite monitoring wells During the third quarter, RESNA will install one <br /> additional onsite and three offsite monitoring wells in an effort to define the plume of dissolved <br /> hydrocarbons in groundwater and to monitor groundwater upgradient and cross gradient of <br /> ' known hydrocarbons in soil Once the extent of hydrocarbons has been assessed, a Problem <br /> Assessment Report will be prepared and remedial options evaluated <br /> tCONCLUSIONS AND RECOMMENDATIONS <br /> Hydrocarbon sheen was present in wells MW-1 and MW-2. Dissolved gasoline hydrocarbons <br /> ' were not reported in well MW-3 and the supply well The groundwater flow direction was to <br /> the southwest We recommend continuing quarterly monitoring <br /> ' DOCUMENT DISTRIBUTION <br /> ' We will distribute copies of this report to the following <br /> Ms Mary Meays <br /> San Joaquin Public Health Services <br /> 445 1,Torth Sawn Joaquin <br /> Stockton, California 95202 <br /> ' Ms Elizabeth Thayer <br /> California Regional Water Quality Control Board <br /> ' Central Valley Region <br /> 3443 Routier Road <br /> Sacramento, California 95827-3098 <br /> 1 Ms. Stella Ruiz <br /> 4491 West Durham Ferry Road <br /> ' Tracy, California 95376 <br /> 1 <br /> 1 <br /> 0621 Igo]1123020-1 3 <br /> 1 <br />