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to <br /> KAYO 0&_ <br /> I. C+DMAANV <br /> /... �, 1221 Mul Maur S"V,f <br /> Chau m=gm T'N37408-1646 <br /> JILT ;� <br /> (b I5)755-9330 <br /> ii rl <br /> I November 251987 <br /> Mr . Gary Johnson <br /> Central Valley Region ;1TAL HEALTH <br /> Regional Water Quality Control Boa d ��VlR4�V' VICES <br /> 3443 Routier. RDi ��RttT/SSR <br /> Sacramento, CA 95827 <br /> ii <br /> FSE : EWA Station ` <br /> �8C3Q�E�H� ghk�ay 1:.� <br /> Lodi, CA <br /> r`m = <br /> Lea 3ohnso _ 7.� <br /> The inves <br /> tigation at thQ LHi hway 12 site is proceeding <br /> and most of the field 1wor . installation of new moni- <br /> taring moval a;nd tj <br /> wells latian of cross connecting k <br /> , removal and plugging of RW1 , has been completed . The <br /> ground%Aa er ramp ing a . I� a ing wells is scheduled for <br /> this week and the labozatory analysis will occur during the <br /> next 2 to 3 weeks ( tie holiday season will delay results <br /> slightly) . Work is proceeding on the repair and safety modi- <br /> fications to the air stripper and MW 19 has been plummed for <br /> use as an extraction well to feed the air stripper . <br /> q <br /> There has . been some difficulty in obtaining permission to <br /> install proposed monitoring well P24 however the most recent <br /> groundwater analysis work indicates that the plume may be <br /> adequately defined in this direction and therefore Dupont is <br /> suggesting that the well need not De installed (see attached F <br /> letters ) . <br /> It appears that we will; not be able to meet the originally <br /> Proposed deadline of January 4 , 1988 . Dupont anticipates the i <br /> repa;,_t can— be delivered jito KayO' by January 12, 1958 and Kayu <br /> can review and forward the report within five working days . <br /> Should <br /> you have any questions, please feel free to call either <br /> myself or Da Ellis at DuPont . <br /> F i <br /> Very n tzta urs, Lodi Office : 900 S Cherokee LN <br /> l � Lodi , CA 95240 <br /> f ��%✓� <br /> Phone : 209/368-2731 <br /> iche Hansen G <br /> Di kAor - Environmental jffairs <br /> i� <br /> MH/dg j <br /> Enclosures <br /> YOST Ms . Laurie Cotulla I <br /> San Joaquin Local Health Distr. i t <br />