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tI . INTRODUCTION <br /> This report presents a ground-water detection monitoring plan for a <br /> proposed Class III sanitary landfill (referred to as the North County <br /> Sanitary Landfill ) in northeastern San Joaquin County, California (see <br /> Figure 1) . The plan was prepared in compliance with Article 5, Sub- <br /> chapter 15, Chapter 23 of the California Administrative Code (referred <br /> to as Subchapter 15) . Included within this document are (1) a brief <br /> summary of the geologic and hydrogeologic conditions at the site, <br /> (2) a description of the proposed detection monitoring system, <br /> (3) justification for the locations of monitoring points, and (4) de- <br /> tails of field procedures, sampling protocol , and laboratory analysis. <br /> San Joaquin County currently operates the Harney Lane Sanitary Land- <br /> fill , a Class III disposal facility located about 7 miles east of <br /> Lodi , California. The landfill is expected to reach full capacity by <br /> i late 1990. For future development of a replacement landfill , the <br /> County purchased a 320+ acre parcel about 1-1/2 miles east of the <br /> existing landfill (see Figure 1) . <br /> EMCON Associates performed a detailed geologic and hydrogeologic <br /> investigation of the replacement site during the summer of 1987. This <br /> followed investigations by J.H. Kleinfelder and Associates at the <br /> currently proposed site (1986) and the adjacent Arizcuren property <br /> (1980x) . A report, entitled 1 ogic and Hydrogeologic Regortn Pro- <br /> , was <br /> prepared by EMCON Associates (197 ) to fulfill data requests con- <br /> tained in Article 9 of Subchapter 1 . That report forms the basis for <br /> this monitoring plan. <br /> PJ9 9390207.00D 1 <br />