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05/28/1997 15:33 9153519351 <br /> FARR ASSOCIATES NHat nZ <br /> FARR ASSOCIATES <br /> Environmental Engineering and Geohydrology <br /> May 2g, 1.997 <br /> via facsimile and U.S. Mail <br /> Mary Meays <br /> Senior RENS <br /> San Joaquin County Public Health Services <br /> Environmental Health Division, Site Mitigation Unit <br /> 304 East Weber Avenue,Third Floor <br /> Stockton, CA 95202 <br /> Subject: Respouse to PHS/EH.D's May 21, 1997. Letter to Mr. Barry Williams Regarding <br /> the Lincoln Center Project Night Schedule <br /> Dear Ms,Meat's: <br /> Lincoln Properties, Ltd. (LPL)received a copy of the letter you sent to Mr. Barry Williams <br /> regarding the night schedule at Lincoln Center. In this letter,San Joaquin County Public Health <br /> Services/Environmental Health Division(PHS/EHD)concluded that"the limited hours of access <br /> has recently caused problems...,"and requested that Mr. Williams intervene to allow reasonable <br /> flexibility in site access"...to ensure that full stages of work can be completed with adequate <br /> regulatory oversight." <br /> Let me assure you that 1.PL has not unreasonably restricted site access for Levine•Fricke•Reccm's <br /> (LFR's)site investigation activities. LPL recognizes the importance of adequate continuous <br /> work periods to complete full stages of work, and this is why LPL granted 11-how work periods <br /> to LFR for the work at boring 203B. It should be noted that this work period is 2 to 3 hours <br /> longer than LFR normally works when drilling and completing wells offsite,where LPL has no <br /> control over access. LPL also maintains the flexibility to grant longer hours of access for work <br /> that cannot be completed within the allotted work periods. It appears that PHD/EHD was not <br /> fully informed by LFR that LPL's field representative offered several times (between the hours of <br /> 4:00 am and 7:00 am on May 20, 1997)to contact LPL to request an extension of LFW s work <br /> day. LFR repeatedly declined LPL's oilers that were made in recognition of the time critical <br /> need to grout the conductor casing. <br /> LFR was well aware of the problems encountered when swelling clays reduced the volume of <br /> other site boreholes that were not grouted immediately alter setting the casing. Despite this <br /> knowledge,LFR elected to set the conductor casing in boring 203B and delay grouting the hole <br /> until the following day. This questionable decision,a�A LPL's access restrictions,led to LFR's <br /> Inability to successfldly grout the conductor casing on the following day. <br /> LPL is dismayed that LFR did not provide PIIS/FHD with all the facts regarding these recent <br /> field events. I would like to assure PHS'EHD that LPL has provided adequate and appropriate <br /> C:10FFICEIW P WTNTP,OJECCSV.P[NV\LEYrEMgc'452897.wpd <br /> 102 Flood Court,Folsom,California 95630 Tel. (916)351-9327;Fax(916) 351.-9357 <br />