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Case Closure Summary Page 2 <br /> Leaking Underground Fuel Storage Tank Program <br /> i <br /> Ill. Release and Site Characterization Information (continued) <br /> FF <br /> cumented Contaminant Concentrations -- Before and After Cleanup <br /> Soil Before (ppm) Water (ppm) Contaminant Soil Before (ppm) Water (ppm) <br /> After Before After After Before After <br /> Gas) 4,880 Q.3 <,05 <.05 Xylenes 188 0.017 <.0005 O.Q023 <br /> (Diesel) NA NA NA NA Ethylbenzene 33.90.047 <.0005 <.0005 <br /> ene 2.77 0.005 0.0006 <.0005 Oil&Grease NA NA NA NA <br /> ne 32.1 0.011 <.0005 <.0005 Heavy Metals 0.46 NA NA NA <br /> MTBE NA: <.5 NA 0.0023 <br /> DIATION NOT PERFORMED AT THIS SITE. 'BEFORE' SOIL CONCENTRATIONS FROM <br /> Comments: ACTIVE REME <br /> TANK PULL RESULTS; 'AFTER' SOIL CONCENTRATIONS FROM SOIL BORING SB-3, EXCEPT-MTBE FROM 12/97 <br /> AND 10102 SOIL BORINGS. WATER 'BEFORE' CONCENTRATIONS FROM 08/15/89 QUARTERLY WELL SAMPLING; <br /> WATER'AFTER' CONCENTRATIONS FROM 11/26/03 QUARTERLY WELL SAMPLING. <br /> IV. Closure <br /> Does completed corrective action protect existing beneficial uses per the Regional Board Basin Plan?YES <br /> Does completed corrective action protect potential beneficial uses per the Regional Board Basin Pian? YES i <br /> Does corrective-action protect public health for current land use? YES <br /> Site management requirements: NONE <br /> Does <br /> Should corrective action be reviewed it land use changes? YES <br /> Monitoring/Vapor wells decommissioned: 3 Number.Decommissioned: 3 Number retained: D <br /> List enforcement actions taken: NOR # <br /> List enforcement actions rescinded: NONE #$ <br /> V. Local Agency Representative Data <br /> Name: DONNA HERAN, REHS Title: DIRECTOR, ENVIRONMENTAL HEALTH DEPT. <br /> Signature: Date: �_g <br /> VI. Central Valley Regional Water Quality Control Board (RB) Notification <br /> Date Submitted to RB:03/18/04 Response Date:05/21/04 <br /> RB Staff: JAMES L.L. BARTON Response: CONCURRENCE <br /> Title: ENGINEERING GEOLOGIST <br /> VII. Additional Comments, Data, etc. <br /> This document and the relatedCASE CLOSURE LETTER, Shall be retained by the lead agency as part of the.official <br /> _ , <br /> site file. <br />