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During March 1999, Tait Environmental Management (Tait) supervised the removing of UST#4, in-place abandoning of UST#8, and soil and/or groundwater sampling from two hand-auger soil borings (HA-1 and HA-2), two truck-drilled soil borings (B-3 and SB-3), and two groundwater monitoring wells (MW-1 and MW-2) The boring and well locations are shown on Figure 2, the well construction and groundwater monitoring data are summarized in Table 1, and the groundwater analytical results are summarized in Table 2 Tait documented the project results in Site Assessment Report, dated May 11, 1999 On July 13, 2000, Tait completed a water well survey for the site vicinity Tait identified rine water wells within 2,000 feet of the site, including the municipal irrigation well at Stribley Park On March 16, 2001, Tait submitted a work plan to perform an additional site assessment The proposed scope of work included drilling nine additional on-site soil borings and installing three additional on-site monitoring wells On July 16, at the request of the property owner, Ramage Environmental completed a review of Tait's work plan and submitted a revised work plan PHS/EHD approved the revised work plan on July 18, 2001 On February 7, 2002, Ramage Environmental published Monitonng Well Installation and Groundwater Monitoring Report, which documented the installation of one additional monitoring well (MW-3), which is shown on Figure 2 The depth to static groundwater across the site ranged from 45 50 feet below ground surface (bgs) in MW-3 to 46 91 feet bgs in MW-11 The corresponding groundwater surface appeared as a regular plane dipping toward the south, away from the municipal well The well construction details and groundwater monitoring data are summarized in Table 1 The groundwater samples collected from MW-2 and MW-3 contained detectable concentrations of TPH-as-gasoline, BTEX compounds and methyl tertiary butyl ether (MTBE) Monitoring well MWA was not sampled due to the presence of 0 33-feet of free product A sample collected from the pressure tank of the municipal irrigation well did not contain detectable concentrations of any of the gasoline compounds analyzed The groundwater analytical results are summarized in Table 2 Based on these conclusions, Ramage Environmental recommended that a work plan be prepared ' to further investigate the lateral and vertical extent of impacted soil and groundwater, and to initiate soil and groundwater remediation at the site 4