Laserfiche WebLink
J{ r r z rt <br /> + yr ?` <br /> Cone Penetrometer T66n `Sitelnvesti ation:--Third Quarter 2001 <br /> t k <br /> 'PAgCIFIC CAR-W A HT Q <br /> 4405 PacificAvenue, Stockton,-California <br /> L T. <br /> 1.0. INTRODUCTION AND SCOPE OF WORK,- <br /> .: x - <br /> At the request of Mr:=Jerry Castro of.Pacifie Car'Wash,_Advanced'G'bEnvirbnniental,.Inc <br /> _.has prepared'this report of-findings for 4405'Pacific:Avenue (the site);'Stockton,-Callfornla_The <br /> report documents,procedures`an_ d.results.for cone penetrometer testing(CPT) conducted at ahe-site = <br /> duringJi ly 2001 (third quarter 2001) The site setting is illustrated on Figure 1. Site structures and <br /> monitoring well-_locations-are depietedon_Figure 2 <br /> :.The objective of this investigation was-to characterize-and assess the.vertical andhorizonial:extentga <br /> ` .. <br /> of=dissolved petroleum hydrocarbons' and°`to characterize the geological and.hydro-geological <br /> _ 'frdmework.underly�ng the site This report-is prepared.in accordance.with guidelines established by , <br /> the-California Re Tonal Water' ualit Control.Board (RW CB)-- .Central:=Valle, Re ion.for t <br /> investigation'of uxiderground-storage tank{UST) sites.A'summary ptprevious'investigations'at the <br /> life was included m 6rk'Plan Addendum-April 2001, dated 23 Apri12001. prepared liy'AGE. <br /> The following is a chronology ofthe CPT.investigation - _ W t <br /> • 24,'July-2001 _—Advancement of CPT soil boring'(P 13}to a-depth of 100 feet below 'surface k <br /> grade;,.collect 2iabmater.sam les at selected de' ths.. <br /> 25 July 2001 ;Advancement of CPT soil Borings (P 10 and R-44)to a depth of 1.00 feet bsg; <br /> ' £ collect grab water sample_ s Worn-T-10 at selected depths <br /> • '26 July 2001 Advancement of CPT soil boring (P-12) to a'-depth of 100 feetsg„collect ' <br /> -gra water samples at..selected dpthsfrom P .-I and P'1 2 <br /> E LID <br /> • so1l:iorn ,P14toadho _ 00fetbscletab27 Jul 2001 Advancement'of CPT c _ <br /> water sample"s,at selected depths from P7'14 <br /> :. . .' All grab groundwater samples were collected from an'irimmediately adjacent boring bearing the same <br /> :. <br /> designation as the initial CPT=boririg. <br /> - .. _ �y--. $i , -�. ,!" v8T + L� 'bti — - Lt. .Lm. ay,� !-f.•r'r'' <br /> 2.0: CPT SOILBORINGS, <br /> : - <br /> on <br /> 245-25;26 and 27 July 2061, fivesoil bonngs_(P 10;P 11,P-12, P 13 and P'l 4)-Werez advanced = ' <br /> on-'and off--site utilizing,CPT 'technology to characterize'`the,geological and hydro=geological <br /> = framework and to'identify potentialJcoritathinatit-migration pathways.beneailiAhe-site <br /> Based on CPT lithologic sounding data collected at P 10;P Ll,P 12,P-13 -and P-14, depth discrete <br /> "grab"'ground;water samples'were collected°by'revisitng locations of the ini'tial'CPT=soil borings <br /> 4F <br /> GeoEnvi"ronmental <br /> ...: - <br /> 7 . <br /> ri'__ <br />