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ARCHIVED REPORTS XR0001465
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3500 - Local Oversight Program
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PR0544190
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ARCHIVED REPORTS XR0001465
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Last modified
2/27/2019 12:27:45 PM
Creation date
2/27/2019 11:18:54 AM
Metadata
Fields
Template:
EHD - Public
ProgramCode
3500 - Local Oversight Program
File Section
ARCHIVED REPORTS
FileName_PostFix
XR0001465
RECORD_ID
PR0544190
PE
3528
FACILITY_ID
FA0004950
FACILITY_NAME
CENTER STREET PARTS
STREET_NUMBER
1717
Direction
S
STREET_NAME
CENTER
STREET_TYPE
ST
City
STOCKTON
Zip
95206
APN
16507228
CURRENT_STATUS
02
SITE_LOCATION
1717 S CENTER ST
P_LOCATION
01
P_DISTRICT
001
QC Status
Approved
Scanner
WNg
Tags
EHD - Public
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. were collected for laboratory analysis Investigation findings were submitted <br /> to SJCEHD on May 14, 2002 In the March 2002 Subsurface Site Investigation <br /> tReport The report included the following highlights <br /> • Subsurface soils In the vicinity of the site were primarily composed of <br /> ' silt and clay to at least 50 feet <br /> • Groundwater was first encountered in a clayey matrix, typically at 30 <br /> ' to 35 feet below grade Groundwater was slow to yield, but typically <br /> rose under confined pressure to about 23 to 25 feet below grade <br /> • Groundwater flow was easterly at a gradient of approximately 0 0026 <br /> feet per linear foot <br /> 1 • BTEX concentrations In soil samples collected from the vadose zone <br /> were lower than concentrations in the soil samples below groundwater <br /> • TPH-g concentrations in soil samples collected from the vadose zone <br /> were higher than In those obtained below groundwater The data <br /> suggest degradation of BTEX In the vadose zone <br /> • The lateral extent ofetroleum-impacted acted soil appeared to be narrowly <br /> p P <br /> confined in the vicinity of the former UST The vertical extent of <br /> impact was evaluated to be 50 to 55 feet <br /> o Oxygenates were not detected In the soil samples <br /> ' • BTEX and TPH-g concentrations In groundwater at MW-2 were <br /> elevated <br /> • BTEX and TPH-g concentrations in groundwater at MW-1, MW-3, <br /> MW-4, and PH-8 were relatively low or were not detected <br /> I • BTEX and TPH-g concentrations In groundwater at PH-6 and PH-7 <br /> may be a result of previous retail gasoline operations at the 1725 El <br /> Dorado Street property <br /> • Oxygenates TBA, MTBE, and DIPE have been detected sporadically <br /> 1 in groundwater samples <br /> SJCEHD concurred with PSC's investigation findings and requested a work <br /> plan to remediate the site to "pre-release" conditions in their June 11, 2002 <br /> correspondence PSC submitted a Pilot Testing Work Plan to SJCEHD on <br /> July 23, 2002 The plan presented remedial alternatives and proposed <br /> performing an air sparging and soil venting pilot test to evaluate that method <br /> • <br /> 1a <br /> Quarterly Groundwater Monitoring Report <br /> 4th Quarter-November 2005 <br /> Prepared for SARA LEE BAKERY GROUP,INC Prepared by PSC Environmental Services <br /> Instigative and Quarterly Report 14th Quarterly Report 11_2005 doc February 24 2006 <br />
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