Laserfiche WebLink
San Joaquin County DIRECTOR <br /> Donna Heran,REHS <br /> Department <br /> Environmental Health De„ <br /> r ASSISTANT DIRECTOR <br /> 600 East Main Street Laurie Cotulla,REHS <br /> a: Stockton, California 95202-3029 PROGRAM COORDINATORS <br /> -. <br /> Ila <br /> Clx <br /> Carl Borgman,REHS <br /> . .or /ehd Mike Huggins,RENS,RDI <br /> Website: wwws <br /> 9Cj Fo`R� jgovg Margaret Lagorio,REHS <br /> Phone: (209)468-3420 Robert McClellon,REHS <br /> Fax: (209)464.0138 Jeff Carruesco,REHS,RDI, <br /> Kasey Foley,REHS <br /> 7-ELEVEN INC I JAW- <br /> KEN HILLIARD <br /> PO BOX 711 <br /> DALLAS TX 75221.-0711 <br /> RE: 7-Eleven Store#14117 Site Code:1073 <br /> 2725 Country Club Blvd. LOP-RO#:013 <br /> Stockton,CA. 95204 Global ID#:T0607700458 <br /> The San Joaquin County Environmental Health Department(EHD)has reviewed Corrective Action <br /> Plan(CAP)prepared by Secor International for the above referenced site and offers the following <br /> comments. The CAP calls for the injection of pressurized oxygen gas into the shallow ground water <br /> beneath the site through four additional injection wells. This remedial alternative proposal received its <br /> final approval by the EHD on June 15,2007 after the Central Valley Regional Water Quality Control <br /> Board(CVRWQCB)stated that the waste discharge requirements(WDR)were not required. <br /> Although the plume of petroleum contamination has been reducing in size as noted in the CAP,it is <br /> still centered on the underground storage tank(UST)•area/pit and the contaminant concentrations are <br /> too high to be left in place;therefore some active remediation would,be appropriate. <br /> The CAP is not adequate as submitted.[H&S Code 25296.10(c)(3)]. The four proposed oxygen <br /> injection well installations are shown as being placed to the southwest,the south, and to the east of <br /> the UST area. No injection wells are proposedJn the center of the plume,the UST pit,where two <br /> conductor casings were placed during the UST installation in 1998. The purpose of these conductor <br /> casings was to provide safe drilling locations between the USTs for future remediation wells and/or <br /> confirmation soil borings. By not targeting the center of the petroleum plume, the EHD considers the <br /> CAP inadequate. The EHD will require at least one oxygen injection well to be installed in the core <br /> area of the plume, unless you can demonstrate that the remediation system as designed will <br /> effectively address the core of the plume. <br /> Please submit a revised CAP that addresses the items of concern noted in this correspondence. <br /> Thank you for your patience and cooperation during this process. You may contact Michael Infurna at <br /> (209)468-3454 if you have any questions. <br /> Donna Heran, REHS, Director <br /> Environmental) Health Department / <br /> Michael Infuma, RENS Nuel C. Henderson Jr., PG <br /> LOP-Unit IV Engineering Geologist <br /> LOP/Site Mitigation Unit IV <br /> cc: CVRWQCB—James Barton, Sacramento. <br /> Secor—Damon Brown,3017 Kilgore Rd.,#100 Rancho Cordova 95670 <br /> JAN 0 7 200 i <br /> SWRCB-Clean Up Fund—Mark Owens, Sacramento. —1 <br /> i <br />