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Harding Lawson Associates <br /> a ' <br /> December 15, 1987 <br /> 18040,001.03 <br /> San JoaPvin Local Health District <br /> 601 E. Hazelton <br /> P.O. Box 2009 ;��� ( : •4 <br /> Stockton, California 95204 <br /> Attention: Ms. Laurie Cotulla <br /> Y' Ladies and.Gentlemen: <br /> s; FLF�(vll'i'/SEf�tVl(: LTH <br /> Application for Well Permits <br /> 7-Eleven Store <br /> 455 Grant Line Road <br /> Tracy, California <br /> On behalf of 7-Eleven stores, Harding Lawson Associates (HLA) re- <br /> quests the required well permits to install three monitoring wells <br /> at 455 Grant Line Road in Tracy, Cal;tfornia. We presented the re- <br /> sults of two initial phases of our investigation at this site in <br /> is reports dated February 10 and April 28, 1987. <br /> We anticipate to begin drilling operations on December 21, 1987. } <br /> HLA_intends to install three monitoring wells and drill. exploratory <br /> borings at the approximate locations shown an the site 'plan at- <br /> tached.. All <br /> t tached.. ` All borings/wells will be drilled using an 8-inch-diameter <br /> continuous flight hollow-stem auger. Two wells will have <br /> 4-inch-diameter PVC easings and a third will have a two-inch casing. ; <br /> t 'he specific construction details for each well will be based on the <br /> results of the drilling and sampling program. The following well <br /> x construction standards, in general, will be used: <br /> Soil samples will be obtained approximately every 5 feet to the max- <br /> imum depth explored. All samples will be sealed in brass tubes and <br /> _.the-ends covered -with-aluminum foil acrd-caps tared-on over-the- <br /> ` foil. Samples will'be, placed immediately into an ice chest. The <br /> augers and sampling equipment will be;.steFui cleaned prior to start- � .. <br /> i each.borin the sa lin a ment-will. be washed.in a solo, <br /> � 9� mp 9 dip <br /> tion of trisodium phosphate and tap water .and rinsed in distilled, <br /> water between samples. The soil samples obtained will be°accom- <br /> panied by a chain-of-custody form, which will be. turned.over to a <br /> chemical laboratory for testing. We anticipate that all wells will <br /> be 15feet d <br /> e� The wells <br /> will have screened.sections with 0.02 <br /> diameter slats from the bottom to approximately two feet above <br /> t <br /> F.noim,,or;; ,{,'iSL151lcnvWily luln,,han f <br />