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Department of Health Services <br />Northern California Section <br />Toxic Substances Control Division <br />4250 Power Inn Road <br />Sacramento, CA 95826 <br />Attention: Ray LeClerc <br />Subject: Work Plan <br />Forward Inc. Landfill <br />San Joaquin County, California <br />Dear Mr. Leclerc: <br />11 <br />January 30, 1987 <br />Project 116-1.5 <br />As requested, we present the following work plan for monitoring well <br />abandonment and construction at the Forward Inc. Landfill. <br />Monitoring Well Abandonment <br />All existing ground water monitoring wells at the Forward Landfill will be <br />permanently closed with cement slurry. The San Joaquin County Health <br />District requires that the casing be removed, and that a cement slurry be <br />pumped into the hole through a tremie pipe. In the case that the casing <br />can not be removed, the entire casing must be perforated, and cement slurry <br />is then pumped into the casing through a tremie pipe. This work will <br />commence as soon as possible with the approval of the State Department of <br />Health Services. <br />New Monitoring Wells <br />The following work is scheduled to begin in mid-February, but will not <br />commence without the approval of the State Department of Health Services. <br />Phase 1 <br />The first phase of monitoring well construction will be the installation of <br />monitoring wells that screen the water table. The screen intervals will be <br />no greater than 25 feet long. Proposed locations for these monitoring <br />wells are shown on Figure 1. <br />