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Il <br />J <br />0 <br />L <br />C <br />P_ <br />I <br />r <br />0 <br />I I <br />This work plan presents the procedures for the installation of groundwater <br />(GW) monitoring well MW -6 at Foothill Sanitary Landfill (FSL). <br />1.2 SITE DESCRIPTION <br />A. Foothill Sanitary Landfill <br />FHSL is located in eastern San Joaquin County at 6484 N. Waverly <br />Road, four miles east of Linden, CA. The landfill is a single Class III <br />Waste Management Unit on an 800 -acre parcel. This Unit is comprised <br />of Module "I", Module 1, and future modules. Future modules will <br />overlap onto other completed modules, including Module "I" until final <br />closure of the Unit. Waste discharged to the landfill includes <br />commercial and household waste, construction/ demolition waste, and <br />agricultural waste. <br />1. Geology and Hydrogeology <br />The first water bearing zone encountered is in sandy gravel at a depth <br />of more than 200 feet below the ground surface. Groundwater <br />elevations vary between approximately 38 and 61 feet MSL. <br />Groundwater elevations fluctuate less than one foot seasonally. The <br />groundwater is unconfined or partially confined. Above the water - <br />bearing zone, the soil layers are moderately to well -cemented layers of <br />sandstone and siltstone with clay stone and conglomerates. This soil is <br />mostly moderately slow in permeability with sporadic sandy layers that <br />are well drained. <br />The new GW well MW -6 will be installed as an additional GW well to <br />groundwater as required by Regional Water Quality Control Board. <br />1.4 WELL LOCATION <br />The location of the GW monitoring well MW -6 is away from the refuse <br />footprint (Figure 1-2). Well installation work will not include drilling into <br />refuse or contact with refuse. Well location will be adjusted in the field <br />based on site conditions. The well will be surveyed after installation. <br />FH -MW -6 GW Well Installation <br />September 17, 2014 <br />San Joaquin County <br />Department Of Public Works <br />Solid Waste Division <br />