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Case Closure Summary Page 2 <br /> Leakis.jj'''-"rground Puel Storage Taal_. P( ram <br /> x1l. Release and Site CharacC,.rization Information (continued) <br /> Documented Coatamiaaat Concentrations--Before and After Cleanup <br /> Contaminant Soil (ppm) pater (PPB) Contaminant So2_033 <br /> jf= <br /> Before After Before After Be <br /> TPS (gas) 4.7 9.3 <50 200 xylene 0 <br /> TP8 (Diesel) ---- 2.3 <50 360 Zthylbenzene 0 <br /> Banzene 0.013 0.047 <0.3 4.7 Oil a grease 'Toluene <0.005 0.012 <0,3 0.8 LAD metals<0.005--- ---- ---- other <br /> Comments (Depth of Remediation, etc.) : <br /> ZZCAVATION RBM07ZD BVIx OF BYDROC&n= MASS yROM SITZ. MY i.naTZn SOIL CONTalaNATION <br /> RZIDILN=G. ONLY VZRY LOW GRAB GRODNDKATER CONTAMINATION SNOW. BMZFICIAL OSIS ARE <br /> PROTZCTZD, Now AND 331 TZZ PDTDRZ. <br /> IV. Closure <br /> Does completed corrective action protect existing beneficial uses per the Regional Soard <br /> Basin Plan? YES <br /> Does completed corrective action protect potential beneficial uses per the R <br /> Basis Plan? YBS Regional Board <br /> Does corrective action protect public health for current land use? YZS <br /> Site management requirements: NONE <br /> Should corrective action be reviewed if land use changes? NO <br /> Monitoring wells Decommisioned: NA Number Deccmisioaed: Number Retained: <br /> List enforcement actions taken: RZPZRRZD TO DISTRICT ATTORNZY'S OPTICS FOR SZVSRAL <br /> VIOLATIONS <br /> List enforcement actions rescinded: NOME <br /> V. Local Agency Representative Data <br /> Name: DONNA=_ ITitle: DIRECTOR, XKWXROMMMIL MMLT8 DIVISION <br /> Signature: Date: _Lo— <br /> VI. RWQCB Notification <br /> Date Submitted to RB: rot, RS Response: CZnU � 1-�-T7 <br /> RNQCS Staff Name:J qXAf(., Title: jta Date: (- 1-57 <br /> VII. Additional Comments, Data, etc. <br /> This document and the related CASE CLOSIM WMTZR, 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 />