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CONTACT CONCURRRENCE: DATE: /i/r4/92 <br />APPENDIX D <br />CONTACT REPORT <br /> <br />350 00016 <br />AutiN c Y/A1-1-1LIATION: City of Stockton <br />DEPARTMENT: amines*. m .., ic ;_e. i (A -1-,' 1 i.e s De p.r+...e_A -4-- <br />ADDRESS: 2500 Navy Drive CITY: Stockton <br />COUNTY: San Joaquin STATE: CA I ZIP: 95206 <br />CONTACT(S) TITLE PHONE <br />Mark Madison Madison Ass. ..'• -enty- Engineer (209) 944-8782 <br />BEI PERSON MAKING CONTACT: Peter Mann/_ ci4 - DATE: 12/3/92 <br />SUBJECT: Groundwater and Surface Water Pathways. <br />SITE NAME: Rotor Blades, Inc. EPA ID: CAD 082447178 <br />DISCUSSION: <br />west- <br />Groundwater levels in vite Stockton apee tend to be shallow <br />J._1 (20-40 feet). As you move to as east 01141066110allelledel1 inainEXAMMile, groundwater <br />levels ineava to approximately a8-100 feet near the city limits. .4.0 ? -1-0 70 k 4_ eas m r Pk <br />er <br /> ‘m.14-44' if wells in Stockton collect water from depths greater than 150 feet. These wells <br />are cased with perforated pipe imedassispelageor-: mkt. 't sr will f,c fees% cri- fly f r PI.. c-+:00• 2, • riga . <br />1,064 61/ <br />There are Cno truly definable unconfined aquifers in Stockton. Most of the groundwater in <br />- <br />,,sarn: Gen+f "la Stockton is located within ,, aquifers.armiesho <br />Ammthipimerionnegimplikrampoug This is due to the large alesontiof clay lenstnd clay layers oki...6d. r <br />within this geologic formation. <br />The water distribution is a blended system with the majority iiimisit being surface water <br />during normal seasons. During periods of drought, the system relies on well water to <br />compensate for the consumption in Stockton. The Central Valley has been under drought <br />conditions for the pasta:years. <br />6 <br />T The city of Stockton buys needed water from Stockton East Water District. iiiaragi,this water <br />'V +114v1 <br />comes from the Calaveras River <br />Contact Report • Madison • 12/92 <br />Printed on 50% recycled paper Qa