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1 <br /> 2.0 GROUNDWATER MONITORING, SAMPLING AND ANALYSIS <br /> 1 <br /> On June 30, 2005, to comply with quarterly groundwater monitoring requirements, Ramage <br /> ' Environmental monitored and sampled 10 of the 11 monitoring wells, and collected groundwater <br /> samples from the nearby cemetery irrigation well#2 Monitoring well MW-1 was dry, and was <br /> not sampled <br /> 21 Groundwater Monitoring <br /> Depth-to-groundwater measurements were taken in of the accessible groundwater monitoring <br /> wells to evaluate groundwater flow and gradient characteristics The cumulative groundwater <br /> monitoring data are summarized in Table 1 <br /> ' The depth-to-groundwater beneath the site ranged from 42 65 feet below ground surface (bgs) <br /> at MW-8B to 46 12 feet bgs at MW-7 MW-7 is the only well completed above-grade and <br /> protected with a monument casing The groundwater elevation beneath the site ranged from a <br /> high of 25 72 feet below mean sea level (MSL) at MW-2 to a low of 26 14 feet below MSL at <br /> MW-8B <br /> Separate groundwater surface maps are included for the shallow-constructed wells (Figure 4) <br /> and the deep-constructed wells (Figure 5) Using the shallow-constructed wells, the <br /> ' groundwater surface appears as an irregular plane dipping toward the northeast at a gradient of <br /> 0 00057 foot/foot Using the deep-constructed wells, the groundwater surface appears as an <br /> ' irregular plane dipping toward the northeast at a gradient of 0 00348 foot/foot The groundwater <br /> surface configurations are generally consistent with historical groundwater gradients and flow <br /> directions <br /> 1 <br /> 22 Groundwater Sampling and Analysis <br /> ' Groundwater was sampled from eight monitoring wells (MW-2, MW-3, MW-4, MW-5, MW-6, <br /> MW-7, MW-8A and MW-81B), two deep soil vapor extraction wells (VW-1 and VW-2), and <br /> ' Irrigation Well #2 Each of the monitoring wells and deep soil vapor extraction wells was purged <br /> of at least three well volumes using a pump and disposable tubing Following purging and <br /> ' recharge, groundwater samples were collected from the wells using dedicated and disposable <br /> sampling bailers Irrigation Well #2 was allowed to flow at the wellhead until the downhole pump <br /> ' was automatically activated A groundwater sample was collected directly at the wellhead <br /> through a sample port <br /> 5 <br /> r <br />