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ARCHIVED REPORTS_XR0002050
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3500 - Local Oversight Program
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PR0545245
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ARCHIVED REPORTS_XR0002050
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Last modified
1/30/2020 1:43:35 PM
Creation date
1/30/2020 10:52:23 AM
Metadata
Fields
Template:
EHD - Public
ProgramCode
3500 - Local Oversight Program
File Section
ARCHIVED REPORTS
FileName_PostFix
XR0002050
RECORD_ID
PR0545245
PE
3528
FACILITY_ID
FA0003730
FACILITY_NAME
TIWANA GAS & FOOD
STREET_NUMBER
1210
Direction
E
STREET_NAME
HAMMER
STREET_TYPE
LN
City
STOCKTON
Zip
95210
APN
09403012
CURRENT_STATUS
02
SITE_LOCATION
1210 E HAMMER LN
P_LOCATION
01
P_DISTRICT
002
QC Status
Approved
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SJGOV\sballwahn
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EHD - Public
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� r <br /> HORIZON ENVIRONMENTAL INC. <br /> Specialists in Site Assessment,Remedial Testing Design and Operation <br /> August 13, 1999 <br /> Mr Joe Aldridge <br /> Ultramar Inc <br /> 525 West Third Street <br /> Hanford, California 93230 <br /> Subject QUARTERLY GROUNDWATER MONITORING REPORT <br /> Second Quarter - 1999 <br /> Beacon Station No 641 <br /> 1210 East Hammer Lane, Stockton, California <br /> Mr Aldridge <br /> Horizon Environmental Inc (Horizon) has prepared this Quarterly Groundwater Monitoring <br /> Report which presents results for the second quarter 1999 monitoring activity for the above- <br /> referenced site (Figure 1) There are currently five groundwater-monitoring wells (MW-1 <br /> through MW-5), eight vapor wells (VW-1 through VW-4 and VE-5 through VE-8) and one <br /> sparge well (SW-1) associated with this site Wells MW-1, MW-3, MW-4, and MW-5 are <br /> onsite groundwater monitoring wells, while well MW-2 is an offsite groundwater <br /> monitoring well (Figure 2) <br /> Groundwater Monitoring <br /> Doulos Environmental Company (Doulos) obtained depth-to-groundwater measurements <br /> from monitoring wells MW-1 through MW-5 and three of the eight vapor wells on June 2, <br /> 1999 (see Table 1) Static groundwater levels were measured from the top-of-casing (TOC) <br /> of each well and recorded to the nearest 0 01-foot Water level measurements were <br /> - subtracted from reference TOC elevations to obtain groundwater elevations, as listed in <br /> Table 1 Ultramar Field Procedures are presented as Attachment A, and Doulos Sampling <br /> Information Sheets are included as Attachment B <br /> Groundwater samples were collected from all five groundwater monitoring wells, the sparge <br /> well, and three of the eight vapor wells (VW-1, VW-3 and VW-7) Locations of the wells <br /> are shown with other pertinent site features on the attached Site Map (Figure 2) The <br /> collected samples were submitted under chain--of-custody protocol to Kiff Analytical (Kiff), <br /> a California Department of Health Services-certified analytical laboratory (ELAN No 2236) <br /> located in Davis, California The groundwater samples were analyzed for total petroleum <br /> hydrocarbons as gasoline (TPHg), the volatile aromatics benzene, toluene, ethylbenzene and <br /> 5011 Golden Foothill Parkway,Suite 7 . EI Dorado Hills,CA 95762 • (916)939-2170 • FAX(916)939-2172 <br /> PO Box 5283 • Bakersfield CA 93388 • (805) 589-8389 • FAX(805) 589-1456 <br />
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