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ARCHIVED REPORTS XR0009946
EnvironmentalHealth
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EHD Program Facility Records by Street Name
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EL DORADO
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7906
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2900 - Site Mitigation Program
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PR0540858
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ARCHIVED REPORTS XR0009946
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Last modified
8/1/2019 1:51:45 PM
Creation date
8/1/2019 10:37:20 AM
Metadata
Fields
Template:
EHD - Public
ProgramCode
2900 - Site Mitigation Program
File Section
ARCHIVED REPORTS
FileName_PostFix
XR0009946
RECORD_ID
PR0540858
PE
2960
FACILITY_ID
FA0023360
FACILITY_NAME
ARCO SERVICE STATION #2130
STREET_NUMBER
7906
Direction
N
STREET_NAME
EL DORADO
STREET_TYPE
ST
City
STOCKTON
Zip
95210
CURRENT_STATUS
01
SITE_LOCATION
7906 N EL DORADO ST
QC Status
Approved
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SJGOV\wng
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EHD - Public
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AYI <br /> Mr Kyle Chnstie Project 0805-114 04 <br /> • January 29, 1996 <br /> Page 5 <br /> ACTIVITIES PERFORMED DURING THE FOURTH QUARTER <br /> • EMCON performed quarterly groundwater monitoring <br /> • EMCON compiled and evaluated groundwater monitoring data <br /> • In November EMCON replaced the well head vaults for monitoring wells MW-3 and <br /> MW-4 <br /> • EMCON conducted routine operation and maintenance of the remediation system <br /> • EMCON collected air samples from the SVE system to monitor system performance <br /> • EMCON evaluated system performance <br /> ANTICIPATED WORK <br /> • ARCO will continue to perform quarterly groundwater monitoring The next sampling <br /> event is scheduled for February 1996 Because well MW-1 is located at within the <br /> dissolved hydrocarbon plume and one of three wells located upgradient from the <br /> existing tanks, EMCON recommends this well be discontinued from the quarterly <br /> sampling program <br /> • EMCON will complete and submit an addendum to the PAR <br /> • EMCON will prepare a workplan to abandon well MW-8 <br /> • Attempts will be made to improve benzene destruction efficiency <br /> • EMCON will conduct routine operation and maintenance on the remediation system <br /> • EMCON will monitor and optimize the performance of the remediation system <br /> • EMCON will collect air samples from the remediation system for laboratory analysis <br /> CONCLUSIONS <br /> Hydrocarbon concentrations in groundwater underlying the site have declined TPHG and <br /> • benzene concentrations were below laboratory detection limits in wells MW-3, MW-4, <br /> MW-6, MW-7, and MW-8 Dissolved hydrocarbons were detected in wells MW-1, MW-2, <br /> SAC\N\PJ0\08051408W1140 4GS-95\pas 1 <br />
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