Laserfiche WebLink
iCase Closure Summary Page v <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) WaterTNA <br /> -Before After Before After Before After Before <br /> TPH (Gas) .1200 19.0 6.8 - 0.970 Xylene 270 3.8 '0.500 <br /> TPH (Diesel) NA NA NA NA Ethylbenzene 45.0 0.37 0.029 <br /> Benzene 0.86 0.058 0.280 0.0014 Oil & Grease NA NA NA Toluene 27.0 0.41 0.027 <0.002 Heavy Metals Pb 55 Pb unk NA MTBE unk <0.02 0.0005 f <br /> Comments: <br /> The soil before concentrations are from soil sample SS-8 collected at 2.5 feet beneath product piping at the time of UST <br /> removal. The soil after concentrations are from confirmation soil sample SL-2 at 3 feet after soil excavation. The water <br /> before (4/10/2003)and after (1/26/2010) concentrations are from MW 1. On 1/26/2010 MW 1 also contained: 24 ug/L TBA, <br /> 22 ug/L 1,2DCA, 44 ug/L PCE, and 210 ug/L TCE. <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: NA <br /> I <br /> Should corrective action be reviewed if land use changes? Yes <br /> Monitoring/Vapor wells Decommissioned: Yes Number Decommissioned: 8 Number retained: 0 <br /> i <br /> List enforcement actions taken:. NOR sent to RP <br /> s <br /> List enforcement actions rescinded: <br /> V. Local Agency Representative Data <br /> Name: Donna Heran, REHS Title: Director <br /> Signature: mow ` Date: <br /> VI. Central Valley Regional Water Quality Control Board RB Notification <br /> Date Submitted to RB:02/25/2011 Response Date:03/10/2011 <br /> RB Staff: J. Barton Response: No Further Action Concurrence <br /> Title: Eng. Geologist <br /> I <br /> VII. Additional Comments, Data, etc. <br /> This is LOP CASE#2. LOP CASE#1 was closed August 19, 1991, as a soil only case. <br /> This document and the related CASE CLOSURE.LETTER, Shall be retained by the lead agency as part of the official <br /> site file. 6 <br /> I <br /> i <br /> J <br />