Laserfiche WebLink
PUBLIC HEALTH SERVICES <br /> SAN JOAQUIN COUNTY <br /> JOCI KHANNA INU)..&IT 14. <br /> Health Officer P <br /> P.O. Box 2009 • (1601 East Hazelton Avenue) • Stockton, California 95201 4 F G R <br /> (209)468-3400 <br /> JOHN JOHNSON SEP 2 7 199, <br /> THE CUSTOMER COMPANY <br /> 4457 PARK DRIVE <br /> BENECIA CA 94510 <br /> 5i0s`a�1 <br /> RE: Custo�er Company IN REPLY REFER TO SITE CODE: 1404 <br /> 15N. Grant Line Rd. <br /> Tracy, CA <br /> Please be advised that San Joaquin County Public Health Services, Environmental Health Division <br /> (PHS/EHD) has reviewed activities to date at the above referenced location. Four monitoring wells were <br /> installed in 1988 after much of the contaminated soil associated with the underground storage tank leak had <br /> been excavated and disposed of. Residual soil contamination was left in place near the southern border of <br /> the property (30 parts per million (ppm)). It is possible higher concentrations exist due to the limitations <br /> of the excavation. In addition, monitoring well #4 was sampled in April of 1988 and benzene, (2.7 parts <br /> per billion (ppb)); xylene (13 ppb) and total petroleum hydrocarbons (140 ppb) were detected. <br /> Due to the residual soil and groundwater contamination, and pursuant to Section 2652(d) of the <br /> Underground Storage Tank Regulations(California Code of Regulations,Title 23,Subchapter 16) a quarterly <br /> monitoring report shall be submitted to PHS/EHD and Central Valley Regional Water Quality Control Board <br /> (CVRWQCB) until the investigation and cleanup of the site is deemed adequate. The report is to show: <br /> -status of investigation and cleanup activities including the results of all investigations <br /> completed to date; <br /> -proposed continuing or next phase of investigation; <br /> -method of cleanup proposed or implemented, schedules for the completion of the <br /> investigation of the site and remediation; <br /> -method and location of disposal of the released hazardous substance and any contaminated <br /> soil, groundwater or surface water; <br /> -manifest required for transport of hazardous substances; <br /> -monitoring well data including groundwater elevation, pH, conductivity, gradient; <br /> -analytical results of groundwater or soil sampling; and <br /> -site map showing the "zero line" of contamination, if known, and changes in the above <br /> measurements over the last quarter. <br /> Please submit this report by November 15, 1991. <br /> If you have any questions, contact Eleanor Ratliff, RENS, of my staff at (209)468-3454. <br /> Jogi Khanna, M.D., M.P.H. <br /> ILalthO Icerune A. Cotulla, REHS, rogram Manager <br /> Environmental Health Division <br /> LAC/ER:nr <br /> c: CVRWQCB - Elizabeth Thayer <br /> A Division of San Joaquin County Health Care Services <br />