Laserfiche WebLink
UM <br /> l <br /> =' June 11, 2004 <br /> San Joaquin Public Health Service <br /> Environmental Health Division <br /> 304 E. Weber Avenue, third Floor <br /> �= Stockton, California 95202 <br /> Attention: Mr. Jeffrey Wong <br /> Re: Third Quarter 2003 Groundwater Monitoring Report <br /> t Former American Forest Products Facility <br /> Stockton, California <br /> URS Project No. 17322736 <br /> Dear Mr. Wong: <br /> On behalf of Mr. William Bergvall, consultant for American Forest Products Company LP, URS <br /> Corporation Americas (URS) is submitting this letter report that includes results of third quarter <br /> groundwater monitoring conducted in September 2003 at the Former American Forest Products Facility, <br /> Stockton, California (Figures 1 and 2). Groundwater monitoring was conducted, and this report <br /> produced, following the requirements presented in a letter from Mr. Jeffrey Wong of the San Joaquin <br /> County Public Health Service(PHSIEHD)dated April 16, 2003. <br /> Water levels were measured and groundwater samples were collected from site monitoring wells DMW- <br /> 1 through DMW-7 on September 25, 2003. Well construction details for all of the wells are included in <br /> j Table 1. Field records and chain-of-custody forms are included in Appendix A. A Data Validation <br /> Summary and analytical laboratory reports are included in Appendix B. <br /> FIELD METHODS <br /> r <br /> Static water levels (Table 2) were measured prior to initiating sampling activities using an electric water <br /> level sounder. <br /> Prior to sampling, the wells were purged to ensure representativeness of the water samples. A 3-inch- <br /> diameter submersible pump was used for purging wells DMW-1 through DMW-6, and an air- <br /> displacement pump was used to purge DMW-7. Field parameters (temperature, electrical conductivity, <br /> pH and turbidity) were monitored during purging, and purging was continued until the field parameters <br /> stabilized and a minimum of three casing volumes of groundwater had been removed. Wells DMW-1 <br /> through DMW-6 were purged at a pumping rate of approximately two gallons per minute, DMW-7 at <br /> approximately one gallon per minute. Purging data were entered on Field Record of Water Sampling <br /> i URS Corporation <br /> Crown Corporate Center <br /> 2870 Gateway Oaks Drive, Suite 300 <br /> Sacramento,CA 95633 <br /> Tel:916.679.2000 <br /> Fax:916.679.2900 <br /> KA W process12273613Q03AFP_rev03.doc <br />