Laserfiche WebLink
Case Closure Summary Page 2 <br /> Leaking Underground Fuel Storage Tank Program <br /> III Release and Site Characterization Information (continued) <br /> Maximum Documented Contaminant Concentrations -- Before and After Cleanup <br /> Contaminant Soil (ppm) Water (ppm) Contaminant Soil (ppm) Water (ppm) <br /> Before After Before After Before After Before After <br /> TPH (Gas) 5.8 Xylene .47 <br /> TPH(Diesel) 4.8 Ethylbenzene 0.12 <br /> Benzene 0.058 Oil &Grease 460 <br /> Toluene 0.34 Heavy Metals Pb 67 <br /> MTBE X0.05 <br /> Comments: Cleanup not required. Soil After results are from soil samples taken at the time of UST removal or soil boring <br /> samples during the site investigation. Low concentrations of gasoline remains in piping trenches east of former USTs <br /> (8,9,10). Low concentrations of oil and grease remains under former USTs (1,2,3,4,5,6,7) north of service bays. No <br /> detectable contamination was evidence at 15 feet in former gasoline USTs (8,9,10) area. No MtBE was detected in soils <br /> ,sampled and analyzed at this site. <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 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 /> MonitoringtVapor wells decommissioned: NA Number Decommissioned: Number retained: <br /> List enforcement actions taken: NOR <br /> List enforcement actions rescinded: <br /> V. Local Agency Representative Data <br /> Name: Donna Heran Title: Director REHS, Environmental Health Division <br /> Signature: Date: c� / O 1 — <br /> VI. a ral Valley Regional Water Quality Control Board (RB) Notification <br /> Date Submitted to RB:7/24/01 Response Date:8/24/01 <br /> RB Staff: Marty Hartzell Response:closure concurrence <br /> Title:Assoc En Geologist <br /> VII. Additional Comments, Data, etc. <br /> 11 Soil only case, ground water was not sampled. <br /> This document and the related CASE CLOSURE LETTER, Shall be retained by the lead agency as part of the official <br /> site file. <br />