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Nov 19 2004 4: 31PM Chapin Brothers Investmen 2CP-464-6947 p. 5 <br /> April 2002 AQE InitiaMd a ground water treatment start -tip period to test <br /> thev e of round r um d at s em. <br /> April 02, 2002 Well monitoring and evacuation, water sa=plea collected. <br /> Among od=finding a high concentration of Benzene was dete:.ted in well MW 1 <br /> See finding/discussion First quarter 2002 report <br /> August 12, 2002 continuing quarterly monitoring aT the site,continuing operation <br /> and maintenance of the ground water extrac7on and treatment system. <br /> Between May 30 and August 2002 the interim Wound water purnp-and-treat was <br /> in continuo,-s operation at a maximurr now rate of 12 gallons per tninute <br /> September 09, 2002 ground water monitoring and sampling were performed <br /> See November 2002 AGE for findings <br /> February 27, 2003 Grotmd water treatment and monitoring continued A total of <br /> 1,677,237 s of water was treaAtAsioce gLouud water extraction bmnn <br /> on April 02,2002 <br /> April 21 thru 23. 2003 Quarterly eround water moniLoring and sjples coatinued- <br /> October 31,2003 Ground water treatment continued. A total of 2,459,705 <br /> gellout of water treated since extract+o:t comu enced 02 Ap u' 2002. See third <br /> quarter for findings. <br /> Octo•tycr 15, 2003 a meeting was held at the S.J. County Environme.:tal Health <br /> office to discuss necessity for ground water rrmediaoon .Tice following <br /> participated <br /> Mr. Harlan Knoll,Mr, Nodi Henderson's. Margaret Liguria <br /> Mt. Bill Little AGE consultant °^'' <br /> Mr. Brian Newman/Mr. James Barton RWCB Centrel Va.11ey Region <br /> Not invited was Russell F, Chapin tproberty owner) <br /> At this meetin&a dircative was adopted to perform an operation hiatus t: round <br /> water enuction and treatment 'Stem the - tractions o er t' n susRond <br /> after 18 October sampling, <br /> The following items were discussed during the Oeto cr 15 meeting <br /> 1 The ground water numb-and-treat si,stem c.ontinuouslN,operated at the site <br /> fo: one and a halfvears. Ovei this time period U2Mximatcjk3 million <br /> ¢atlons_Qf impacted water have beer troated Cumulative totals ^f <br /> Benzene and TR-i-&wen also discussed at the mEeti,ne <br /> 2 Continuous concentration has b o reduced when comp=d _r pre- <br /> mnnediation levels at most impacted ground water nionitcrizg wells <br /> 3 The disposition of he remaining soii cont in ion under the buildinE at <br /> the site was discussed It weneralty agreed that:;maining soil was the <br /> space of residual contamination documented in the extractjon well water <br />