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J. <br /> Lv _ <br /> 1 <br /> PUBLIC HEALTH SERVICES . <br /> 5 <br /> .i.L'It�'(1L'I\COt'\1.1' <br /> 1(GKH.-',NM 1',D..M PA <br /> P.C1. fox 200c) • r 1601 Easi Hazthon A%entut. ��,;iat,r,.C.1140nni::4j20! <br /> 200, <br /> Ford _:n5tr._tien :r.C. /Jir ?he ^e C11 FEB , �6 <br /> Lod., CA 9524ep. -•. <br /> RE: So:! =r.cavat:on Work alan <br /> 1 W. Turner Road, LDC:: <br /> We have atterpted to review the report submitted for the above referenced <br /> facility. Our review is somewhat hindered d-e to the lack of adequately <br /> prevented material. <br /> . It `_s difficult to ascertain wh ther cur Cenceri•.5 eY.aressed in the letter <br /> ,at ed -PJpust 2, !93B, have. been a-dre.seda; spec:f4cally, the contaRlnatien at <br /> a,]PreYi4at?1y 43 feet at borehole t!L. No det?_11et site maps were presenteJ tC <br /> 1's 1s:5tYat e:� he exCavatlen t:Iat tell'. Disce az the site. The May „3, _539 . <br /> rp= rt indicates cCCpcEite samples from thebottQm of the er.cavation and <br /> cemDosite grab water samples xere taken. This can only be construed as a <br /> screen ng C.ec-.an;s as =is-ret? same::n3 at prte-m et e r m i ned and pre-•a]zro-�:d . <br /> -at 71ih3 Dcint5 is recommended. <br /> We do recommend additional sacpl:Dz .ane place; ;)ewever, dote to the condltio-s <br /> or the epen excavation, addit'onalrsarpl-ng at this tire may not be fEaG]'31e. <br /> A samalin Dian should be present.--c! to Ean Joaquin. County =nvirs_.nmental Health <br /> and to t~c' Regional rtiater Cuallty _.rtrel _chard Teri review prior to any <br /> additiCnal sarcliny actio:*.es at t:Ie . <br /> In aCW?t:en, q'-arterly sarpllnq of the :xisting roni ter:n; .ie115 and Kcnthly <br /> ceasuremerts should take ^lace :mcetiately to accurately determine groundwater <br /> gradient. [I 7Yiginal lEt._, dated oust �, .-3, expressed concern t�%at the <br /> gradient had nct been adequately den-Dr:s.. _tet. Ta c'ate, this has .._: been <br /> atfree__r. <br /> :tem k :n th? Cray _3, 'SEi rep'rt s'3_-_�5ts Alar;5 `^_r _n—situ bieremediatio❑. - <br /> Corslr= :reg :nee :ac of data at tn.:_ .;me, it is erat_re to props:. = soil <br /> h:. ;roc of _..^F1'.Pd:of i4:'r r--;st have ".,._urrtnt review <br /> ant _.�.__':=_rrt'er the -"t Cu'i� cf =?rviC55, alt¢:•^a:eve 7ecC, o:E:;y <br /> Sa'i _7tv.• .rLental <br /> 1a .j.:r.C.�. �'ir.:';�Cur Srni:n 10 <br />