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1386 EAST BEAMER STREET <br /> W�EGE �jEjZjv WOODLAND, CA 95776-6003 <br /> GEO ENGINEERS FAX (916) 662-0273 <br /> CALIF CONTRACTOR#513857 A CORPORATION (916) 668-5300 <br /> REGISTERED GEOLOGISTS <br /> Ms. Mary F. Meays, REHS June 5, 1995 <br /> PUBLIC HEALTH SERVICES <br /> San Joaquin County JUIV 0 7 199519 <br /> P.O. Box 2009 ENVIIdpN <br /> Stockton, Californiaaquin S95201) PERMITSERVjCEALTHf <br /> (209) 468-0337 <br /> RE: Addendum to Quarterly Sampling protocol for Former Regal <br /> Station 603, 6425 Pacific Avenue at the intersection of <br /> Douglas Road, Stockton, San Joaquin County, California. <br /> INTRODUCTION <br /> To help expedite the Quarterly Ground Water Sampling at this <br /> site, a minor change in the sampling protocol is to be initiated <br /> on the June, 1995 sampling round. <br /> Previously, depth to water and vacuum influence measurements were <br /> obtained on all of the wells prior to purging and sampling. A <br /> change in this protocol will reduce the amount of time needed to <br /> perform the monitoring/sampling, thereby reducing costs to the <br /> Responsible Party Party (RP) . <br /> ADDENDUM <br /> WEGE will perform the depth 'to water and vacuum influence <br /> measurements on each individual well and will purge and sample <br /> that well prior to moving on to the next well . Due to the <br /> hydraulic conditions of the ground water (low conductivity) , this <br /> minor change in sampling protocol will not alter the results or <br /> present any adverse effect on the interpretation of ground water <br /> gradient and/or vacuum influence. <br /> All other protocols will be as originally outlined for this site. <br /> If you should have any questions please do not hesitate to call <br /> me at (916) 668-5300 . <br /> ��RED G£4 <br /> Sincere yours, ��` JACK E. <br /> y //) NAPPER <br /> !�� * No.3037 ; <br /> George L. C rse J} P <br /> Project Geologist <br /> Cc : Mr. John Margowski, Wickland Properties <br /> Ms . Elizabeth Thayer, CVRWQCB <br /> Page 1 of 1 SAMPLING PROTOCAL ADDEND <br />