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i <br /> h <br /> Case Closure Summary : Exhibit N Page1 of 2 <br /> i <br /> i <br /> Cash Closure Summary Page 2 <br /> Leaking Underground Fuel Storage Tank Program <br /> a . <br /> III Release and Site Characterization Information (continued) <br /> tt N .`.; <br /> Maximum Documented Contaminant Concentrations - - Before and After Cleanup <br />! Contaminant Soil (ppm) Water % 1, <br /> (ppm) Contaminant Soil (ppm) Water (ppm) <br /> Before After Before ": After Before After Before After <br /> TPH (Gas) 2900 Ethylbenzene 11 <br /> TPH (Diesel) Xylene 270 <br /> Benzene <5 s' Oil &Grease <br /> Toluene 6.5 Heavy Metals <br /> Mineral Spirits Lead <br /> Comments (Depth of Remediation, etc.): <br /> Approximately 50 yds soil were removed to a depth of 13 feet on 3112185. Site closure based upon preliminary investigation <br /> completed 119197 which indicated a limted extent of soil contamination. <br /> IV. Closure <br /> l�•: :; <br /> Does completed corrective action proteFct existing beneficial uses per the Regional Board <br /> Basin Plan? (Yes) <br /> Does completed corrective action protect potential beneficial uses per the Regional. Board <br /> Basin Plan? (Yes) I <br /> L Does corrective action protect public health for current land use? (Yes) <br /> Site management requirements: None', .;A <br /> Should corrective action be reviewed -if land use changes? (Yes) <br /> Monitoring wells decommissioned: NA tjNumber Decommissioned: Number retained:-) <br /> List enforcement actions taken: NOR,'.sent <br /> Y <br /> List enforcement actions rescinded- -None <br /> V. Local Agency Representative Data. ., '.. <br /> Name: Donna Heran j - ., ': Title: Director of Environmental Health <br /> Signature: Date: ! isig 7 <br /> VI. Central Valley Regional Water�Quality Control Board (RB) Notification <br /> Date Submitted to RB: Response Date: <br /> RB Staff: J. Brathovde I+ i Response: <br /> Title: Assoc. Eng Geologist i <br /> ii <br /> VII. Additional Comments, Data, etc. <br /> l it <br /> Soil only <br /> This document and the related CASE CL09URRE L ER, Shall be retained by the lead agency as part of t e official <br /> site file. (08124193) Exhibit N Page 2 of 2?, <br />