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�- NEW <br /> M1 <br /> fiEC�END_AT <br /> Contaminant concentr�ati ons in the ground wat�r at. t.kii s Si <br /> have decreased "rb::edf.Fsultsefrom theeds'amplinciaround <br /> vj n ofctlvities <br /> the ll <br /> of f a <br /> Cam 1 i ng round of <br /> showed Non Detect 1 evel s far all samples f r-am a 1 i wet].s and <br /> all analysed CalltafTJIna�.tES. Results frau t.k7e p� <br /> showed the same far all wells e::cept MW and pen:ene <br /> showed Xylene concentration of 14.0 ug/1 <br /> .. <br /> concentration of 1. 1 u9/1 . <br /> The Xylene concentrations d <br /> from this well are sxgTheniff-tennene <br /> below State MCL. levels for this compoun , <br /> State <br /> concentrations from this WE-11 aarhsl l thatghtivi�fbthe sampleMCwase`'run <br /> for this compound. Chan <br /> again, it might show a Benzene concentration slightly below the <br /> State MGL level , due to random errors which are part of evcan <br /> ery <br /> laboratory measurement, liven the most stringenlnAh�rars Fr <br /> not eliminate all random errors when measuring <br /> billion range. <br /> a pumping / sampling / treatment , ground water- <br /> We <br /> ater <br /> bJe proposed <br /> c 1/'."4/91 <br /> remediation scheme for this site in our re-- Ground Water <br /> f Final Remediation plan -- Addenumand <br /> Kemediat ion. page 61 . In view of the res <br /> lts of the <br /> esunds. I believe that impsslementation <br /> : Yofl tkiis <br /> /1^/91 sampling r <br /> scheme would be inappropriate at this time. <br /> I am proposing that further action at <br /> As an alternative, Cour activities at this site <br /> this site be " monitoring only "� and mapping of the water <br /> should consist Of gs.sarterl.y monitoring <br /> table Surface only• if this monitoring shows that allrcpCI that <br /> below 1`rf ac for four consecutive quarters, I would p p <br /> your office evaluate this site for final closure_ <br /> with this proposal . please contact Steve <br /> If you cancurr <br /> riting at: <br /> Furnas as soon ns passible, in w <br /> _ Steve Furnas F;E.A Inc. � Eb Gc��D <br /> WHF Cnvironmentaal Coi7_ultants, <br /> 11 1 Oakdale Rd. -- NO-2 �U � <br /> Modesto. California 95.-.55 � W6LUAM R. �tP <br /> any questions. feel free to call HENKLE, JR. <br /> If sats have <br /> No. EG -0014"M <br /> Si ncerel y. CERTlFicf] r <br /> ENGINEERING <br /> GEOLOGI <br /> S <br /> _William __.. <br /> ..F;...__Henkle Ir <br /> OF <br /> Calif. Engr.. Geoi . # <br /> t�. <br />