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� yrp <br /> Advanced <br /> GeoEnvlronment.'lInc . <br /> f :_ N-MRONKIE"N TAL HEALTH DIVISION <br /> E =:)4 E. Weber Ave. Third Floor <br /> 18 September 1998 0. Box 388, Stockton CA 95201-0388 <br /> AGE-NC Project No. 98-0452 Deni ded 1 <br /> r c) OCT 208 <br /> t <br /> Mr. Jeff Wong ? by <br /> . San Joaquin County Public-Health Services-Environmental tfe �(vision <br /> 304 East Weber Avenue, Third Floor <br /> Stockton, CA 95202. j, eduL o SDi�P;�o�72S <br /> Subject: Work Plan Addendum-August 1998 sou jw,_wiof-4 l t ,.A)o f <br /> YAMADA BROS. oarrc %+ 4L4- 4h,s Po <br /> 15446 South Tracy Boulevard, Stockton, California <br /> � r <br /> dumL2 �7P fo A520 <br /> r <br /> - . bused 6n end Feld <br /> Dear Mr. Wong: o6se,-zaA d)� <br /> 3, <br /> C011&4- a/ld a/74 z2. <br /> At the request of Mr. Bob Yamada, Advanced GeoEnvironmental, Inc. (AGE) has prepared the a(iSCi2 <br /> enclosed Work Plan Addendum for 15406 South Tracy Boulevard near Stockton,California.A work <br /> plan for the installation of three ground water monitoring wells was submitted to the-San Joaquin Saritp es <br /> County Public Health Services -Environmental Health Division(FHS-EHD) in June'l998. Due to yyf, 1rn <br /> the low concentrations of hydrocarbons detected during the underground storage tank removals, the 41 r <br /> PHS-EHD recommended in a July 1998 phone conversation that site investigation be performed by <br /> the advancement of soil probe borings (probings).near the former Iocation of two USTs at the site..---foef <br /> and the collection of soil and grab water samples. <br /> 5�5 at Z Lie <br /> ' A Site Health and Safety PIan is currently on file with the FHS-EHD for the site. Soil.bormg.penrutst /4mo <br /> will be obtained prior to initiation of drilling at the site. <br /> SAMPLE COLLECTION q-• Asjyze_soi�f r�z0 5Mmpksgbo <br /> . , . I <br /> --rPK' CcACL OX�exi�S, <br /> - . A total of six soil probe borings (probings)will-be advanced for the collection of soil and grab water P;4- <br /> samples. <br /> ,- <br /> sam les. The proposed robin locations are shown on Figure 2. All robin s will be advanced into <br /> P P P probing g P g C��;rrs <br /> the top of the.water table at an approximate depth of seven feet below surface grade(bsg),using a <br /> Geoprobe soil sampling assembly pre-loaded with four 1.125-inch by 6-inch brass sleeves.Probings . �. <br /> may be advanced to greater depths or additional probings may be advanced based upon field <br /> observations. t1Q <br /> o4tp <br /> A grab water sample will be collected from each probing using a Geoprobe water sampling assembly cl L42S-e <br /> by advancing the ground water sampling assembly through the ground water interface and retracting <br /> 4005 North Wilson Way, Stockton,California 95205 Advanced GeoEevironmental..lne.. Gt'11y3es <br /> Telephone(209)467-1006 FAX(209)467-1118 mus+ <br /> PHS160 D c <br />