Laserfiche WebLink
ENVIROI IAENTAL HEALTAEPARTMENT <br /> SAN JOAQUIN COUNTY <br /> Donna K. Heran, R.E.H.S. Unit Supervisors <br /> 304 East Weber Avenue,Third Floor Carl Borgman,R.E.H.S. <br /> Director <br /> Al Olsen, R.E.H.S. Stockton,California 95202-2708 Mike Huggins, R.E.H.S., R.D.I. <br /> Program Manager Douglas W.Wilson, R.E.H.S. <br /> s a Telephone: (209)468-3420 Margaret Lagono,R.E.H.S. <br /> 9t'_F6 Laurie A. Cotulla, R.E.H.S. <br /> Program Manager Fax: (209)464-0138 Robert McClellan, R.E.H.S. <br /> Website:www.sjgov.org/ehd/ Jeff Carruesco,R.E.H.S. <br /> MABEL KEIR 'JAN 0 g 2006 <br /> 1103 GRANTLINE CT <br /> MODESTO CA 95330 <br /> RE: Lopez Properties SITE CODE: 0001525 <br /> 1601 Turnpike <br /> Stockton,CA 95206 <br /> San Joaquin County Environmental Health Department (EHD) has reviewed Additional Site <br /> Assessment Work Plan — Monitoring Well Installation dated December 23, 2005, submitted by <br /> Advanced GeoEnvironmental, Inc. (AGE) for the above-referenced site. AGE proposes to install <br /> three monitoring wells to approximately 35 feet below ground surface (bgs) with screen intervals <br /> between 15 and 35 feet bgs to further delineate hydrocarbon-impacted groundwater. Monitoring well <br /> MW-4 will be advanced approximately 58 feet southwest of MW-3; MW-5 will be advanced <br /> approximately 100 feet northeast of MW-3; and MW-6 will be advanced approximately 110 feet <br /> northeast of MW-1. <br /> EHD approves the proposed wells, noting that the location for MW-5 should be directly down <br /> gradient of the source area and that MW-6 should be located at a distance from the source area that is <br /> co-equal to the distance of the other wells from the source area. <br /> EHD believes two additional monitoring wells are needed, one located north of the exiting building, <br /> approximately 50 feet from the source area, and one deep monitoring well located at the former <br /> underground storage tank (UST) site. The monitoring well north of the building will delineate the <br /> lateral extent of hydrocarbon-impacted groundwater north of the former UST. The deep monitoring <br /> well will delineate the vertical extent of contamination at the source area. <br /> Please submit a revised work plan to EHD by March 1, 2006,that addresses EHD's recommendations <br /> for the relocation of MW-5 and MW-6 and two additional monitoring wells. <br /> If you have any questions,please contact Vicki McCartney at(209)468-3456 or by electronic mail <br /> at vmccartney@sjcehd.com. <br /> Donna Heran,REHS,Director <br /> Environmental Health Department <br /> Victoria L. McCartney, Senior REHS Nuel C.Henderson,Jr.,PG <br /> LOP/Site Mitigation Unit IV LOP/Site Mitigation Unit IV <br /> c: James L.L. Barton, PG-CVRWQCB <br /> Anna W. Behrens-AGE <br />