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ARCHIVED REPORTS XR0001400
EnvironmentalHealth
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3500 - Local Oversight Program
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PR0544190
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ARCHIVED REPORTS XR0001400
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Last modified
2/27/2019 12:30:44 PM
Creation date
2/27/2019 11:15:41 AM
Metadata
Fields
Template:
EHD - Public
ProgramCode
3500 - Local Oversight Program
File Section
ARCHIVED REPORTS
FileName_PostFix
XR0001400
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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Page 5 <br /> Mr Michael lnfurna Jr,Senior REHS <br /> May 15,2003 <br /> Groundwater Level Measurements <br /> As shown in Table 1, groundwater within the monitoring wells were measured at <br /> depths approximately 0 4 feet higher than the previous round of monitoring <br /> performed in January 2003 Groundwater depths ranged from 26 69 feet (below <br /> the top of the well casing)to 27 50 feet The corresponding groundwater <br /> elevations, evaluated during this monitoring period, ranged from minus (-)17 12 <br /> feet to—17 74 feet relative to mean sea level As shown in Figure 3, groundwater <br /> flows easterly at an approximate gradient of 5 2 x 10-3 feet per linear foot,which <br /> is generally consistent with historic trends <br /> Groundwater Sample Analytical Results <br /> Petroleum hydrocarbon concentrations were not detected in the samples from <br /> monitoring wells MW-1, MW-3 and MW-4 Higher petroleum hydrocarbon <br /> concentrations were measured in the groundwater sample collected from <br /> monitoring well MW-2 (see Table 2) Benzene and TPHg concentrations in the <br /> current MW-2 sample were measured at 10,000 micrograms per liter(ug/1) and <br /> 100,000 ug/1, respectively (see Figure 4) <br /> Oxygenate compounds were not detected in any of the samples collected from <br /> the monitoring wells However, laboratory detection limits for these oxygenate <br /> compounds were relatively high in the MW-2 sample <br /> Closing <br /> PESC is currently awaiting permit approval from the San Joaquin Air Pollution <br /> Control District to install and operate the air spargmg and soil venting <br />' remediation system PESC intends to install the remediation system shortly after <br /> receiving this permit(anticipated by July 2003) PESC intends to continue <br /> quarterly groundwater monitoring at the subject site, unless otherwise directed by <br /> EHD The next scheduled round of monitoring will be performed in July 2003 <br /> i <br /> 1 <br />
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