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I 10 2.0 GROUNDWATER MONITORING, SAMPLING AND ANALYSIS On September 17, 2003, to comply with quarterly groundwater monitoring requirements and to evaluate the stability of the plume of impacted groundwater, Ramage Environmental monitored and sampled 9 of the 11 monitoring wells, and collected a groundwater sample from the nearby cemetery irrigation well #2 The two wells which were not monitored and sampled were MW-1, which is damaged, and MW-2, which was covered by dirt and grass Monitoring well MW-8A was monitored by not sampled due to a decline in the water table elevation and insufficient groundwater in the well i21 Groundwater Monitoring ' Depth-to-groundwater measurements were taken in all nine of the accessible groundwater monitoring wells to evaluate groundwater flow and gradient characteristics In the nine wells monitored, the depth-to-groundwater beneath the site ranged from 47 23 feet below ground surface (bgs) at MW-4 to 50 90 feet bgs at MW-7 MW-7 is the only well completed above-grade and protected with a monument casing The groundwater elevation beneath the site ranged from a high of 30 40 feet below mean sea level (MSL) at VW-1 to a low of 31 36 feet below MSL at MW-813 The cumulative groundwater monitoring data are summarized in Table 1 Separate groundwater surface maps are included for the shallow-constructed wells (Figure 4) and the deep-constructed wells (Figure 5) Using the shallow-constructed wells, the groundwater gradient is approximately 0 0024 foot/foot in a north-northeast direction Using the deep-constructed wells, the groundwater gradient is approximately 0 0045 foot/foot in a northeasterly direction These groundwater surface configurations are generally consistent with historical groundwater gradients and flow directions 22 Groundwater Sampling and Analysis Groundwater was sampled from six monitoring wells (MW-3, MW-4, MW-5, MW-6 and MW-7, MW-8B), two deep soil vapor extraction wells (VW-1 and VW-2), and Irrigation Well#2 Each of the monitoring wells and deep soil vapor extraction wells was purged of at least three well volumes using a pump and disposable tubing Following purging and recharge, groundwater samples were collected from the wells using dedicated and disposable sampling bailers Irrigation Well #2 was allowed to flow at the wellhead until the downhole pump was automatically activated A groundwater sample was collected directly at the wellhead through a sample port 5 �