Laserfiche WebLink
WALLACE ■ KUHL April 1, 1997 <br /> Gr ASSOCIATES INC. <br /> Ms Barbara Jean Drake <br /> 8315 Arroyo Way <br /> Stockton, California 95209 <br /> QUARTERLY STATUS REPORT <br /> 26485 THORNTON ROAD <br /> Thornton, California 95206 <br /> WKA No 2556 04 <br /> Dear Ms Drake, <br /> We are submitting this quarterly groundwater monitoring and sampling report <br /> for the subject property located at 26485 Thornton Road in Thornton, <br /> I California (Plate 1) The purpose of our work was to comply with <br /> groundwater sampling requirements requested by the Central Valley Regional <br /> Water Quality Control Board (CVRWQCB) and County of San Joaquin <br /> 7 Public Health Services - Environmental Health Department (EHD) <br /> t! Geotechnical Engineering <br /> On March 18, 1997, groundwater samples were obtained from three on-site <br /> Engineering Geology monitoring wells MW1 through MW3 (Plate 2) All sampling was witnessed <br /> Environmental Consulting by Mr Steve Sasson of EHD Prior to sampling, the wells were checked for <br /> ` <br /> Remediation Services visual signs of free product using clean, disposable polyethylene bailers <br /> When no free product was visible, monitoring wells MW 1 through MW3 were <br /> Construction Inspection purged and sampled as described in Appendix A <br /> i Materials Testing <br /> Based on groundwater elevation measurements, the groundwater flow <br /> direction has changed to a southwesterly direction since our last quarter of <br /> sampling The hydraulic gradient is calculated at 0 001 feet/foot (Plate 2) A <br /> 3050 Industrial Blvd <br /> historical summary of groundwater elevation measurements for the subject site <br /> West Sacramento <br /> is included as Table 1 <br /> CA 95691 <br /> Fax 916 372 2565 <br /> 7 <br /> 916 372 1434 <br /> Recycled paper <br />