Laserfiche WebLink
i <br /> Case Closure Summary Par <br /> Leaking Underground Fuel Storage Taniigram ;^ <br /> t ,P y <br /> III Release and Site Characterization Information (continued) <br /> Maximum Documented Contaminant Concentrations - - Before and After Cleanup <br /> Contaminant -0071 l (ppm) Water (ppm) Contaminant Soil (ppm) Water (ppm) <br /> Before After Before After Before After Before After <br /> TPH(Gas) ND xxxx 4.2 <.050 Xylene .019 xxxx .46 <.0005 <br /> Benzene .005 xxxx .001 <.0005 Ethylbenzene ND xxxx .11 <.0005 <br /> Toluene .015 xxxx .28 <.0005 MTBE ND xxxx ND <.0005 <br /> Lead 12 xxxx xxxx xxxx <br /> Comments:SOIL BEFORE SAMPLES ARE FROM BORINGS DONE ON 815198. WATER BEFORE SAMPLES ARE FROM <br /> BORING GRAB SAMPLES OR FIRST ROUND OF MONITORING WELL SAMPLES (WHICHEVER WERE MOST <br /> CONSERVATIVE). THE SECOND ROUND OF MONITOR WELL SAMPLING EVIDENCED NON DETECTABLE <br /> CONCENTRATIONS OF ALL CONTAMINANTS LISTED ABOVE. NO REMEDIATION OCCURRED AT SITE. <br /> k <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 /> I� <br /> Should corrective action be reviewed if land use changes? YES <br /> i <br /> i Monitoring/Vapor wells decommissioned: yes Number Decommissioned: 3 Number retained: 0 <br /> I <br /> List enforcement actions taken: NOR <br /> List enforcement actions rescinded: NONE <br /> I V. Local Agency Representative Data <br /> Name: DONNA HERAN Title: DIRECTOR ENVIRONMENTAL HEALTH DIVISION <br /> Signature: Date: <br /> I <br /> VI. Central Valley Regional Water Quality Control Board(RB) Notification <br /> rate—Submitted to RB: 03/01/00 Response Date: 03/28/00 <br /> RB Staff: MARTY HARTZELL Response: CONCURRENCE <br /> f <br /> Title: ASSOCIATE ENGINEERING GEOLOGIST <br /> E <br /> VII. Additional Comments, Data, etc. <br /> WELL SURVEY DATED 9114!99 INDICATES NO DRINKING WATER WI=LLS WITHIN 2,000 FT RADIUS OF SITE; PER <br /> WELL SURVEY REPORT, THE NEAREST WELL IS AN IRRIGATION WELL LOCATED 1,000 FT SOUTH OF SITE, <br /> SEALED TO 50 FT, SCREENED FROM 198 TO 270 FEET BSG. THE PORT OF'STOCKTON IS PREDOMINANTLY <br /> INDUSTRIAL. <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 /> I <br /> j <br />