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Case Closure Summary Page 2 <br /> Leakier:� j7naderground Fuel Storage Tank P� /ram <br /> III. Release and Site CharadWrisation Information (continuedT+ <br /> Maxim:m Documented Contaminant Concentrations--Sefare and After Cleanup <br /> Contaminant Soil (ppm) Mater (PPB) Contaminant Soil (ppm) Nater (PPB) <br /> Before After Before After Before After Before After <br /> TPE (Gas) 4,7 9.3 c50 200 xylene 0.033 0.048 <0.3 12.0 <br /> TPE (Diesel) ---- 2.3 <50 360 Etbylbenaaae 0_012 0_031 <0.3 --2_0 <br /> Benson 0.013 0.047 <0.3 4.7 Oil i Grease <0.10 <br /> Toluene <0.005 0.012 <0.3 0.8 LEAD metals 5.6 ---- ---- ---- <br /> VIBE 00.005 ---- ---- Other <br /> Comments (Depth of Remediation, <br /> EZCAVATION REMOVED BULB OF HYDROCARBON SASS FROM SITE, VERY LIMITED SOIL CONTAMINATION <br /> REMAINING. ONLY VERY LOM GRAD GROUNDWATER CONTAMINATION SHOWN, BEMEFICIAL USES ARE <br /> PROTECTED, NOW AND IN TEE FUTURE. <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? NO <br /> Monitoring wells Deccstisioned: MA Number Decommisioned: Number Retained: <br /> List enforcement actions taken: REFERRED TO DISTRICT ATTORNEY'S OFFICE FOR SEVERAL <br /> VIOLATIONS <br /> List enforcement actions rescinded: NONE <br /> V. Local Agency Representative Data <br /> Nom: DONNA HSRAM Title: DIRECTOR, ENVIRONU MMAL HEALTH DIVISION <br /> Signature: Date: J'z <br /> VI. RMQCB Notifica on J <br /> Date Submitted to RE: RB Response: <br /> RMQCB Staff Name: Title: 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 />