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ARCHIVED REPORTS_XR0003771
EnvironmentalHealth
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2900 - Site Mitigation Program
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PR0540905
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ARCHIVED REPORTS_XR0003771
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Last modified
2/3/2020 10:06:44 AM
Creation date
2/3/2020 9:11:13 AM
Metadata
Fields
Template:
EHD - Public
ProgramCode
2900 - Site Mitigation Program
File Section
ARCHIVED REPORTS
FileName_PostFix
XR0003771
RECORD_ID
PR0540905
PE
2960
FACILITY_ID
FA0023406
FACILITY_NAME
SIERRA LUMBER MANUFACTURERS
STREET_NUMBER
375
Direction
W
STREET_NAME
HAZELTON
STREET_TYPE
AVE
City
STOCKTON
Zip
95205
APN
147120808
CURRENT_STATUS
01
SITE_LOCATION
375 W HAZELTON AVE
P_LOCATION
01
QC Status
Approved
Scanner
SJGOV\sballwahn
Tags
EHD - Public
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a <br /> r ✓ ^ v 4 n t } <br /> 1 <br /> } <br /> 15 February 2000 <br /> AGE-NC Protect No 98-0448 <br /> Page 8 of 33 <br /> (located approxuriately 10 feet southwest of VW-2) at approximately 0 12 inches of water <br /> Minimal induced vacuum measurements were observed from VW-1 (located approximately 15 feet _ <br /> _ southwest of VW-2) at approximately 0 03 inches of water and MW-6 (located approximately 67 <br /> feet southwest of VW-2) at approximately 0 02 inches of water <br /> The vacuum applied at VW-2 and the induced vacuums at VW-1, EW-1 and MW-6 were graphed _ <br /> versus distance utilizing a best fit line on a semi-loganthmic scale (Figure 4) Based upon the <br /> induced vacuums measured from VW-1, EW-1 and MW-6, a theoretical radius of influence in soils <br /> at the site for an induced vacuum of 0 1 inches of water is approximately 13 feet <br /> 35 ANALYTICAL RESULTS OF VAPOR SAMPLES <br />' During the SVE pilot test, TPH-g was detected in vapor samples collected from VW-2 at <br /> concentrations ranging up to 1,880 µg11, hydrocarbon vapor concentrations generally decreased as <br /> the test progressed <br /> BTEX compounds were detected in vapor samples collected from VW-2 at concentrations up to 58 <br /> µg/1 Concentrations of benzene were encountered from VW-2 at concentrations as high as 2 5 µg/l, <br /> Concentrations of MTBE were encountered at concentrations as high as 1 µg/l, MTBE vapor <br /> concentrations were generally stable as the test progressed Analytical results of vapor samples are <br /> summarized in'Table 8 The laboratory report (Precision Enviro-Tech Sample I D PE671 3) and <br /> chain-of-custody forms are presented in Appendix F <br /> 4.0. IN-SITU AIR SPARGING PILOT TEST <br /> From 25 through 27 August 1999, an IAS pilot test was performed at the site to evaluate the r <br /> k feasibility of IAS as a remediation method at the site <br /> 41 PROCEDURES ' <br /> AGE designed the IAS pilot test to utilize existing wells screened within the plume of impacted <br /> ground water and to assess effectiveness of IAS on wells screened in common geologic interval and , <br /> on nearby wells possibly isolated from the sparge zone by an interval of lower permeability (i e <br /> silt/clay) For the IAS pilot test, well MW-4B was utilized as a sparging well, wells MW-1, MW-2, <br /> MW-6 and EW-1 were utilized as observation points Well MW-4B is screened in a lower sand <br /> interval separated from an upper sand interval by a silt/clay interval Wells MW-1,MW-2 and MW-6 <br /> Advanced Geo Environmental,Inc <br /> I r <br />
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