My WebLink
|
Help
|
About
|
Sign Out
Home
Browse
Search
ARCHIVED REPORTS_XR0009413
EnvironmentalHealth
>
EHD Program Facility Records by Street Name
>
T
>
TOSTE
>
2450
>
3500 - Local Oversight Program
>
PR0545734
>
ARCHIVED REPORTS_XR0009413
Metadata
Thumbnails
Annotations
Entry Properties
Last modified
6/5/2020 1:56:21 PM
Creation date
6/5/2020 1:45:40 PM
Metadata
Fields
Template:
EHD - Public
ProgramCode
3500 - Local Oversight Program
File Section
ARCHIVED REPORTS
FileName_PostFix
XR0009413
RECORD_ID
PR0545734
PE
3528
FACILITY_ID
FA0010191
FACILITY_NAME
TRACY-PONTIAC-CADILLAC-GMC TRUCK
STREET_NUMBER
2450
STREET_NAME
TOSTE
STREET_TYPE
RD
City
TRACY
Zip
95376
APN
238020-06
CURRENT_STATUS
02
SITE_LOCATION
2450 TOSTE RD
P_DISTRICT
005
QC Status
Approved
Scanner
LSauers
Tags
EHD - Public
There are no annotations on this page.
Document management portal powered by Laserfiche WebLink 9 © 1998-2015
Laserfiche.
All rights reserved.
/
48
PDF
Print
Pages to print
Enter page numbers and/or page ranges separated by commas. For example, 1,3,5-12.
After downloading, print the document using a PDF reader (e.g. Adobe Reader).
View images
View plain text
30 October 2002 <br /> . AGE-NC Project No 96-0254 <br /> IPage 3 of 4 <br /> I 29 13 feet above mean sea level (MSL) in well MW-7 and 30 30 feet above MSL in well MW-6 <br /> Ground water elevations in wells MW-1 through MW-6 at the site increased an average 0 04 feet <br /> between the April 2002 and July 2002 sampling events, the ground water elevation in well MW-7 <br /> IIncreased 0 97 feet between the April 2002 and July 2002 sampling events <br /> The ground water flow direction for the 23 July 2002 sampling event was inferred to be toward the <br /> north at an average hydraulic gradient of 0 005 feet/feet, data from the deeper-screened wells <br /> MW-IA, MW-2A and MW-7 was not used to determine the ground water gradient Figure 3 <br /> illustrates the contoured ground water elevations <br /> 3 2 LABORATORY RESULTS OF GROUND WATER SAMPLES <br /> ITPH-g was detected in the samples collected from wells MW-1B and MW-4 at concentrations of <br /> 30,000 micrograms per liter(µg/1) and 12,000 µg/l,respectively(Figure 4) TPH-d was detected in <br />' the water samples collected from wells MW-1B and MW-4 at concentrations of 1,900 µg/1 and <br /> 1,100 µg/1 TPH-g and TPH-d were not detected in the remaining samples <br /> i . BTEX compounds were detected in the ground water samples collected from monitoring wells <br /> MW-lB, MW-4 and MW-7 (with the exception of ethylbenzene in well MW-7) at concentrations <br /> I as high as 7,700 µg/1 benzene, 1,900 µg/1 toluene, 1,200 µg/1 ethylbenzene and 2,000 µg/l total <br /> xylenes (MW-1B) <br /> MTBE was detected in the samples collected from MW-1B, MW2B and MW-4 at concentrations <br /> of 260 µg11, 0 89 µg/l and 22 µg/1, respectively(Figure 6) No other fuel additives were detected in <br /> the ground water samples <br /> IThe analytical results are summarized in Table 2 Copies of the laboratory reports(MAI Laboratory <br /> ID 0207356-001 to 0207356-009), QA/QC reports and chain-of-custody forms are in Appendix B <br /> 4.0. SUMMARY AND CONCLUSIONS <br />' Based on the data collected during this monitoring period, AGE concludes <br /> I • The depth to ground water at the site was between 6 96 to 7 79 feet below the well casing <br /> tops The prevailing ground water flow direction at the site was generally toward the north, <br /> consistent with the previously determined flow directions <br /> • Petroleum hydrocarbon-impacted ground water was encountered in samples from monitoring <br /> • wells MW-IB, MW-2B, MW-4 and MW-7, benzene concentrations exceeded the State of <br /> IAdvanced GcoEnvironmental Inc <br /> I <br />
The URL can be used to link to this page
Your browser does not support the video tag.