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.a <br /> PARR ASSOCIATES <br /> Environmental Engineering and Geohydrology <br /> May 28, 1997 j <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: Response to PHS/EIID's May-2 1, 1997 Letter to Mr. Barre Williams Regarding <br /> the Lincoln Center Project Night Schedule <br /> Dear Ms. Meays: <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 LPL has not unreasonably restricted site access for Levine•Fricke•Recon'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 1 I-hour 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 LFR's work <br /> day. LFR repeatedly declined LPL's offers 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 after 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, not LPL's access restrictions, led to LFR's <br /> inability to successfully grout the conductor casing on the following day. <br /> LPL is dismayed that LFR did not provide PHS/EHD 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:\OFFICE\WPWIN\PROJECTS\LPfNV\LETrERS\letO52897.wpd <br /> 102 Flood Court,Folsom,California 95630 Tel. (916) 351-9327;Fax(916) 351-9357 <br />