Laserfiche WebLink
o <br /> Case Closure Summary : Exhibit N P. 1 of 2 k <br /> 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 (ppb) Water (ppb) Contaminant Soil (ppb) Water (ppb) <br /> Before After Before After Before Ager Before After <br /> TPHd 3200ppb ND NA NA <br /> Xylene 140ppb ND NA NA <br /> Toluene 8.6ppb ND NA NA <br /> Ethylbenzene 26ppb ND NA NA <br /> MTBE 140ppb ND NA NA <br /> No remediation required. Soil Before results were from soil sampled at the time of UST removal. Soil.After results were <br /> from preliminary assessment borings: <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? No <br /> Monitoring Wells decommissioned: NA Number Decommissioned: NA Number retained: 0 <br /> List enforcement actions taken: NOR sent <br /> List enforcement actions rescinded: None <br /> V. Local Agency Representative Data <br /> Name: Donn Heran Title: Director of Environmental Health <br /> Signature: Date:. . <br /> VI. Central Valley Regional Water Quality Control Board (RB) Notification <br /> Date Submitted to RB: Feb. 18, 1999 Response Date: NIA <br /> RB Staff: Mark List Response: None ; <br /> Title. Engineering Geologist j <br /> I <br /> VII. Additional Comments, Data, etc. <br /> Soil contamination only at time of tank removal, site assessment was non detect for contamination. Groundwater not <br /> encountered. <br /> This document and the related CASE CLOSURE LETTER, Shall be retained by the lead agency as part of the <br /> official site file. (08124193) Exhibit N Page 2 of 2 <br />