SITE INFORMATION AND CORRESPONDENCE

Home Browse Search

i Case Closure Summary Pag • Leaking Underground Fuel Storage Tank Program III Release and Site Characterization Information (continued) Maximum Documented Contaminant Concentrations --Before and After Cleanup Contaminant Soil (ppm) Water (ppm) Contaminant Soil (ppm) Water (Ppm) Before After Before After Before After Before_ After TPH(Gas) <1.0 340. <0.050 Ethylbenene <0.005 . 0.081 <0.001 TPH(Diesel) NA N A 0.16 Xylene <0.005 <0.050 <0.001 Benzene 0.16 0.650 <0.001 MTBE 80 440 <0.001 Toluene <0.005 <0.050 <0.001 1.2 DCA NA NA <0.001 Comments: Soil Before data are from sample 3E collected at approximately 15 feet bsg during the UST removed on 12110198. Soil After data are not available since soil confirmation samples were not collected: Water Before data are from VW-1 collected on 10114/99. Water After data are from the VW-1 collected on 04/2611 T. NA—not analyzed IV. Closure Does completed corrective action.protect existing beneficial uses per the Regional Board Basin Plan? Yes Does completed corrective action protect potential beneficial uses per the Regional Board Basin Plan? Yes Does corrective action protect public health for current land use? Yes Site management requirements: None Should corrective action be reviewed if land use changes? Yes Monitoring wells decommissioned: Yes Number Decommissioned: 3 Number retained:. 12 List enforcement actions taken: NOR List enforcement actions rescinded: None V. Local Agency Representative Data Name: Adrienne Ellsaesser,_REHS Title: Acting Program Coordinator Signature: /At -/A.- /i/*"Z� Date:. 9/10/// VI. Central Valley Regional.Water Quality Control Board (RB)Notification Date Submitted to RB: Response Dater RB Staff: James L.L. Barton Response: Title: Associate Engineering Geologist VII. Additional Comments, Data, etc. This document and the related CASE CLOSURE LETTER, Shall be retained by the dead agency as part of the official site file.