Laserfiche WebLink
Case Closure Summary Page 2_ ` <br /> making Underground Fuel Storage Tank Pam <br /> 111 Release and Site Characterization Information (continued) <br /> Maximum Documented Contaminant Concentrations -- Before and After Cleanup <br /> Contaminant Soil (ppm) Water <br /> Before After Before After) Contaminant Soil (ppm) Water (ppm) <br /> TPH (Gas) 6070# # Before After Before After <br /> ND ND Ethylbenene 133# ND <br /> Benzene 953# # NO NO Xylene 681# NO <br /> Toluene 551# # ND ND 3E NO <br /> ND <br /> '3.3 NO NO <br /> Comments: <br /> #Soil data from borehole B-1 at a depth of 25' bgs, contaminants documented at 60'bgs less than 1 ppm in soil. - <br /> Confirmation borehole MWA was installed south of the contaminant mass, as such verification of SVE effectiveness unknown. <br /> 'MTBE detected in three soil samples from two boreholes at 3.3 ppm, .1 and .01 ppm as deep as 61' bgs. TBA detected in <br /> borehole MW-1 at.015 ppm at 61' bgs. <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 /> IS <br /> ite management requirements: NONE <br /> hould corrective action be reviewed if land use changes? NO <br /> Monitoring/Vapor wells decommissioned: NONE Number Decommissioned: NONE Number retained: 1 <br /> List enforcement actions taken: NOR <br /> List enforcement actions rescinded. NONE <br /> V. Local Agency Representative Data <br /> Name: Donna Heran mt L� Title: Director of Environmental Health -Su �iSr <br /> Signature: ��� �—t- Date: -F 4I-� ct <br /> VI. Central Valley Regional Water Quality Control Board (RS) Notification <br /> Date Submitted to RB: Response Date: <br /> 9 f 13 <br /> _RB Staff: -HeT /}2, fes. Response. <br /> Title: £ti,,/ <br /> VII. Additional Comments, Data, etc. <br /> SOIL ONLY <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 />