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f Case Closure Summary Page 2 <br /> Leakir,,�nderground Fuel Storage Tank f gram <br /> III. Release and Site Characterization Information (continued <br /> Maximum Documented Contaminant Concentrations--Before and After Cleanup <br /> Contaminant Soil (ppm) Water (PPS) Contaminant Soil (ppm) Water (PPB) <br /> Before After Before After Before After Before After <br /> TPH (Gas) 7500. 7500. <50.0 <50.0 Xylene 690.0 690.0 <0.5 <0.5 <br /> TPH (Diesel) ---- ---- ---- ---- Ethylbenzene 130.0 130.0 <0.5 <0.5 <br /> Benzene 59.0 59.0 <0.5 <0.5 Oil & Grease ---- ---- --_- ---- <br /> Toluene 322.0 322.0 <0.5 <0.5 Heavy metals 17.5 ---- ---- ___ <br /> MTBE ---- ---- ---- ---- other <br /> Comments (Depth of Remediation, etc.) : <br /> RELEASE LIMITED IN SCOPE. GROUNDWATER SHOWED NONDETECT FOR CONSTITUENTS OF CONCERN. <br /> *****SOIL ONLY***** <br /> Iv. Closure <br /> Does completed corrective action protect 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 <br /> Does corrective action protect public health for current land use? YES <br /> Site management requirements: NONE <br /> Should corrective action be reviewed if land use changes? YES <br /> Monitoring wells Decommisioned: NO Number Decommisioned:00Number Retained: 01 <br /> List enforcement actions taken: INITIAL DIRECTIVE LETTER <br /> List enforcement actions rescinded: NONE <br /> V. Local Agency Representative Data <br /> Name: DONNA HERAN Title: DIRECTOR, ENVIRONMENTAL HEALTH DIVISION <br /> Signature: Date: <br /> VI. RWQCB Notification <br /> Date Submitted to RB: RB Response: <br /> RWQCB Staff Name: BRATHOVDE Title:ASSOC ENG GEOL Date: <br /> VII. Additional Comments, Data, etc. <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 />