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Case Closure Summary Page 2 <br /> Leak ,"' junderground Fuel Storage Tank' gram <br /> III. Release and Site Chara, rization Information (continu <br /> Maximum Documented Contaminant Concentrations--Before and After Cleanup f <br /> Contaminant Soil (ppm) Water (ppm) Contaminant Soil (ppm) Water (ppm) <br /> Before After Before After Before After Before After <br /> TPH (Gas) 760 1 ND ND ND Xylene 37.0 0.014 ND ND 1 <br /> Diesel 1 <br /> 4 000 ND ND ND Ethylbenzene 6.0 ND ND ND <br /> TPH (Diesel) ND <br /> 00 ND ND <br /> Benzene 2.7 ND ND ND Oil & Grease 150- .046 .046 <br /> Toluene 17.0 ND ND ND Hvy Met"ZINC" - - <br /> Other"TCE" 530 ND .006 ; .006 Other"MTBE" ND ND .020 .020 <br /> Comments (Depth of Remediation, etc.) : <br /> WASTE OIL AREA OVEREXCAVATED AND CONTAMINATED SOIL REMOVED OFF SITE FOR DISPOSAL. LOW <br /> CONCENTRATIONS OF TCE AND MTBE EXIST IN GROUNDWATER. <br /> IV. Closure <br /> Does completed corrective action protect existing beneficial uses per the Regional Board <br /> Basin Plan? (Yes) No <br /> Does completed corrective action' protect potential beneficial uses per the Regional Board <br /> Basin Plan? (Yes)'' No <br /> Does corrective action protect public health for current land use? (Yes) ' No <br /> Site management requirements: <br /> i <br /> Should corrective action be reviewed if land use changes? (Yes) No <br /> Monitoring wells Decommisioned: (Yes) No Number Decommisioned: 4 Number Retained: 0 <br /> List enforcement actions taken: . <br /> LEVEL ##1, NOTICE,OF REIMBURSEMENT SENT TO RESPONSIBLE PARTY <br /> t <br /> i <br /> List enforcement actions rescinded: <br /> V. Local Agency Representative Data <br /> [Name:DONNA HFRAN Title: DIRECTOR, ENVIRONMENTAL HEALTH DIVISION <br /> Signature: Date: i <br /> VI. RWQCB Notification <br /> Date Submitted to RB: RB Response: C_oy-, <br /> RWQCB Staff Name: E THAYER Title:ASSOC ENGINEER Date: <br /> VTI. Additional Comments, Data, ietc. <br /> NO PETROLEUM HYDROCARBON REMEDIATION REQUIRED, <br /> TCE AND MTBE EXIST IN GROUNDWATER <br /> This document and the related CASE CLOSURE LETTER, Shall be retained by the lead agency <br /> as part of the official site file. (08/24/93) <br /> Exhibit N Page 2 of 2 <br />