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Aubum Office: <br /> 11521 Blocker Drive,Suite 110 • Auburn;CA 95603 <br /> (5301 887-1494 fax(5301 887-1495 w�odes'.o office; 522-6273 <br /> Wes,Sacramento Office: 19161375-8706 <br /> Geotechnical Consfrucfton Services corensics <br /> BCI No. 1399.3 <br /> August 1.9 ,2010 <br /> Dennis M. Trzcznski <br /> Wilmorite Construction, LL C <br /> 1515-19th Street <br /> Suite 100 <br /> Sacramento, CA 95814 <br /> Subject: Draft Workplan for Aerially Deposited Lead Testing <br /> Buena Vista Rancheria Phase 1 -Offsite Road Improvements <br /> Amador and San Joaquin Counties,California <br /> Dear Mr Trzcinski, <br /> ADL testing for the Buena Vista Rancheria Phase I Offsite Road Improvement project will be at <br /> the three intersections with planned roadway improvements The intersections are located at SR <br /> 88 and Liberty Road; SR 88 and Buena Vista Road; and SR 88 and SR 12 The sampling plan <br /> described in this workplan was developed from discussion with Caltrans. However. <br /> implementation of this plan is contingent upon Caltans review and concurrence. <br /> i <br /> The project overview is shown on attached Figure 1.. Detailed maps of sample locations are <br /> attached in Figures 2 through 4. i <br /> FIELD PREPARA'T'ION <br /> • Prepare traffic control plan for review and approval by Caltrans,and the County(if' <br /> appropriate) <br /> • Nfark sample locations in field for Undergiound Service Alert t <br /> • County Encroachment Permitting(obtained by others) <br /> SAMPLING PROCEDURE <br /> • ADL samples will be collected from the following locations: <br /> --12 locations at the Buena Vista Road/SR 88 intersection. <br /> --9 locations at the Liberty Road/SR 88 intersection <br /> --4 locations at the SR 12/SR 88 intersection <br /> 1 <br /> 3 <br /> 1 <br />