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r � <br /> } STd" __ .,'-' s�: - ` _ ; ' , s-- c�r ,s.. . "r- - � -, .. ' �r r - "�,---• w :.,, ` ! a�, i.r�c <br /> ADDITIONAL SITE ASSESSMENT WORK PLAN <br /> a November 1996'' <br /> w <br /> 639 West Clay`Street <br /> Stockton, CaLfornta _ a' <br /> v <br /> 1.0. <br /> IN, ' <br /> y In accordance with the iequest of Ms r Michelle Mariana of West Clay Properties, Advanced <br /> Additiorial Site Assessment WorkV Pian for the ' <br /> ' GeoEnvironrrierital, Incl (AGE)rhos prepared this , <br /> collection of soil and grab water samples at 639 West Clay Street, Stockton, California The scope,, <br /> of work includes the advancement,of four soil probe borings at the former underground storage tank <br /> (UST) locationThe location,of the site is illusttated in Figure 1 - Location Map A plan of the site , <br /> is illustrated on Figure 2 - Site Plan <br /> This Work Plan'is piepared in accordance with San Joaquin County Public Health Services - <br /> Environmental Health Division (PHS-EHD) and Central Valley Regional Water Quality Control <br /> Board (CVRWQCB) guidelines for the investigation of UST sites <br /> r � <br /> 2.0. BACKGROUND _ <br /> The site is located in a flat, commercial area'of western Stockton, California It is our understanding i <br /> that one 1 ,000-gallon UST A as remo,�Ied from the site iii May 1990 The product line from the <br /> former UST to the dispenser was removed in October 1993 Subsequently, appioxrmately SSO cubic - <br /> yards of hydrocarbon-impacted soil was removed from the f6rmer UST area Soil was excavated to , <br /> depths of 3$ feet, however, the lateral and vertical extent of the contamination was not assessed <br /> Three iYionitoring,wells and one additional soil boring have been drilled and installed at the site y <br /> E <br /> Ground to be iriipacted and additional assessment was required by the <br /> round water has been deteik <br /> PHS-EHD to completely'define`the lateral and vertical extent of impacted soil and ground water <br /> I <br />' 3.0.E SCOPE OF WORK-, <br /> 3 1 r "DRILLING AND SAMPLING <br /> = "ti AGE proposes to initially advance four soil,probe boring to a depth of approximately 35 feet Below <br /> s surface grade {bsg) The probe borings urill'be advanced near the former UST location using AGES <br /> Geo robe soil robin urnrt Sorl sain les will be collected`at five foot'inter�als from-each probe <br /> p p g <br /> It -boring Grab water sampleswill mill be obtained frotwo probe borings The scope of work may be <br /> expanded based upon field observations and conference with'the rPHS-EHD The proposed probe <br /> boring locations-are illustrated ori Figure 2 <br /> i s r'i r o ' , , • , _ <br /> r <br /> , ,., � .1}� rl ti r$ 'w� L.' L„'r` tl �.'4" � •h ''" .. " o'i,Kih<1",�'r , j >. e, <br />