Laserfiche WebLink
. r Case Closure Summary Page 2 <br /> Leakinc—7nderground Fuel Storage Taizk 2-----.Tram <br /> III. Release and Site Charas L:-ization Information (contisueq� <br /> Maximum Documented Contaminant Concentrations--Before andlAfter Cleanup <br /> Contaminant Soil (ppm) Water (ppm) Contaminant 136il (ppm) Water (ppm) <br /> LSP <br />! Before Atter Before After Before !i After Before After <br /> TP'R (Gas) 0 .350 0.350 .620 <.05 Xylene <.06 ' <.06 0.094 <.0005 <br /> TPH (Diesel) - - - - Ethylbenzene <.06 <.06 0.021 <.0005 <br /> Benzene 0.083 0.083 0.140 <.0005 Oil & Grease I<. <br /> Toluene <.008 <.008 0.140 � <:0005 Heavy metals - - - <br /> other - - - other - - - <br /> Comments (Depth of Remediation, etc.) : <br /> HIGHEST DTW FROM MW1, 4/6/89. LOWEST DTW FROM MW1 10/13/93;. SOIL BEFORE FROM BH2 0 201 . <br /> SOIL INVESTIGATION INDICATED THAT THE SOIL CONTAMINATION EVIDENCED IS LIMITED. <br /> ROUNDWATER BEFORE FROM MW1 ON 7.0/].3/93 . GROUNDWATER AFT7�R FROM MW1 ON 10/31/95. <br /> IV. Closure <br /> x <br /> Does completed corrective action protect existing beneficilal uses per the Regional Board <br /> Basin Plan? (Yes) Na !i <br /> Does completed corrective action protect potential beneficial uses per the Regional Board <br /> k Basin Plan? (Yes) Na <br /> Does corrective action protect public health far cur--eat Land use? (Yes) NO <br /> Site management requirements: NONE i# <br /> 'r <br /> I� <br /> Should corrective action be reviewed if land use changes? i Yes 'I (No) <br /> Monitoring wells Decommissioned: (Yes) No Number Decommissioned: 5 Number Retained: 0 <br /> List enforcement actions taken. if <br /> NOTICE OF REIMBURSEMENTS SENT 5/19/95 TO CHEVRON AND 10/15/92 TO ULYCESS WILLIAMS. <br /> 'l <br /> List enforcement actions rescinded: NONE ,f <br />' V. Local Agency Representative Data <br /> Name: DO A HE Title:DIRECTOR OF ENV16NMENTAL HEALTH <br /> E Signature: Date: <br /> VI. RWQCB Notification i� <br /> Date Submitted to RB: 1/23/96 IRB Response: <br /> I RWQCB Staff Name: G BOGGS Title:PROGRAM COORD. Date. <br /> f i <br /> VIZ. Additional. Comments, Data, etc. <br /> F <br /> E.S. SIMONIS, REGISTERED GEOLOGIST #4422 ESTIMATED APPROXIMATrLY 1300 n30F CONTm&n;x-ED <br /> f SOIL REMAINS BETWEEN 15-50' BELOW GRADE AT AN AVERAGE CONCENTRATION OF 0.29 ?PX TPH-GAS. <br /> ITfF25 MASS OF HYDROCARBONS EQUALS TO APPROXIMATELY 0.2 GALLONS OF GASOLINE. DUE TO TME <br /> LIMITED MASS OF HYDROCARBONS IT WAS ANTICIPATED THAT SORPTION AND BIODEGRADATION WOULD <br /> PR..ti'VENT PRESENT AND FMURr IMPACT TO GROUNDWATER. �1 <br /> 3i <br /> This document and the related CASE CLOSURE LET;ER, Shall be retained by the lead agency <br /> as part of the ozficial site file. (08/24/93) <br /> Exhibit N Page 2 of 2 <br /> t <br /> I4 � <br />