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298 Grantline Chronology <br /> Page 2 of 2 <br /> November 3 1995 Tetrachloroethylene and TCE <5ppb was evidenced in <br /> MW3 groundwater sample. <br /> January 24, 1996 Six borings were constructed at the site. Soil and water <br /> samples evidence TPHg, TPHd and BTEX contamination. <br /> May 10, 1996_ Three more MWs were installed on site (MW 4,5 and 6). <br /> .Quarterly sampling continues. � <br /> June 17, 1997 ° "Closure Summary Report received by PHS/EHD. <br /> July 13, 1998 PHS/EHD observed destruction of MWs 4 and 5 under <br /> permit to allow for the widening of Grantline Blvd. <br /> September 2, 1998 Approximately 58 cu. yds. of suspected contaminated soil <br /> was over-excavated from the site by Wright Environmental <br /> (total depth—6 feet bsg) during street widening work. <br /> Motor oil was 200ppm, all other contaminants were ND. <br /> August 10,1999 Closure Summary Addendum received by PHS/EHD. <br /> .I <br /> P. <br />