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ARCHIVED REPORTS XR0011793
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PR0544801
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ARCHIVED REPORTS XR0011793
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Last modified
11/19/2024 10:19:08 AM
Creation date
9/4/2019 11:15:52 AM
Metadata
Fields
Template:
EHD - Public
ProgramCode
3500 - Local Oversight Program
File Section
ARCHIVED REPORTS
FileName_PostFix
XR0011793
RECORD_ID
PR0544801
PE
3528
FACILITY_ID
FA0003210
FACILITY_NAME
TEXACO TRUCK STOP
STREET_NUMBER
7500
Direction
W
STREET_NAME
ELEVENTH
STREET_TYPE
ST
City
TRACY
Zip
95378
APN
25015018
CURRENT_STATUS
02
SITE_LOCATION
7500 W ELEVENTH ST
P_LOCATION
03
P_DISTRICT
005
QC Status
Approved
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EHD - Public
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Report: Groundwater-quality Monitoring-October 27,2003: 7500 West Eleventh Street, Tracy, CA. Page i <br /> Table of Contents <br /> PROFESSIONAL CERTIFICATION AND LIMITATIONS...................................ii <br /> 1.0 INTRODUCTION.................................................................................................................... 1 <br /> 1.1 Site Location......................................................................................................................... 1 <br /> 1.2 Site Codes.............................................................................................................................2 <br /> 1.3 Background..........................................................................................................................2 <br /> 1.4 Geology and Hydrogeology.................................................................................................3 <br /> 1.5 Distribution of Hydrocarbons in the Subsurface..................................................................4 <br /> 2.0 OCTOBER 27, 2003 GROUNDWATER SAMPLING AND ANALYSIS..............................6 <br /> 2.1 Groundwater Elevations and Flow Direction.......................................................................6 <br /> 2.2 Purging of Monitoring Wells................................................................................................8 <br /> 2.2.1 Disposal of Purge Water...............................................................................................8 <br /> 2.3 Recovery of Groundwater Samples from Monitoring Wells................................................9 <br /> 2.4 Analyses of Groundwater Samples ......................................................................................9 <br /> 2.4.1 Groundwater Quality in the Near-Surface Unconfined Aquifer................................. 10 <br /> 2.4.1.1 Analytes of Concern in Groundwater Along Principal Plume Axis.................... 10 <br /> 2.4.1.2 Fuel Hydrocarbons and Oxygenates Around Fringes of Principal Plume........... 11 <br /> 2.4.1.3 Analytes of Concern in Secondary Groundwater Plume..................................... 12 <br /> 2.4.2 Groundwater Quality in the Deeper Confined Aquifers ............................................. 12 <br /> 3.0 FUTURE ROUNDS OF GROUNDWATER SAMPLING AND ANALYSIS ..................... 14 <br /> - 4.0 REFERENCES <br /> TABLES <br /> Table 1: Depths to Groundwater <br /> Table 2: Results of Analyses of Samples of Groundwater <br /> FIGURES <br /> Figure 1: Site Location <br /> Figure 2: Groundwater Contours—October 27, 2003 <br /> " Figure 3: Affected Soil in Cross Section A-A' <br /> Figure 4: Affected Soil in Cross Section B-B' <br /> Figure 5: Affected Soil in Cross Section C-C' <br /> APPENDICES <br /> APPENDIX A: Field Notes <br /> APPENDIX B: Laboratory Certificates of Analysis <br /> sic <br /> r� <br />
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