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ARCHIVED REPORTS XR0009648
EnvironmentalHealth
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2900 - Site Mitigation Program
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PR0524567
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ARCHIVED REPORTS XR0009648
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Last modified
9/14/2020 1:17:24 AM
Creation date
7/23/2019 8:56:53 AM
Metadata
Fields
Template:
EHD - Public
ProgramCode
2900 - Site Mitigation Program
File Section
ARCHIVED REPORTS
FileName_PostFix
XR0009648
RECORD_ID
PR0524567
PE
2950
FACILITY_ID
FA0016478
FACILITY_NAME
FORMER HALEYS FLYING SERVICE
STREET_NUMBER
21000
STREET_NAME
PARADISE
STREET_TYPE
RD
City
TRACY
Zip
95376
CURRENT_STATUS
01
SITE_LOCATION
21000 PARADISE RD
P_LOCATION
99
P_DISTRICT
005
QC Status
Approved
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STable 1. Groundwater Monitoring Well Data <br /> Well No Date Well Depth to Casing Water Floating <br /> Sampled Depth (ft) Water (ft) Elev ft Elev ft Product <br /> MW-1 8/25/97 19 34 734 2239 15 05 None <br /> MW-2 8/25197 17 25 707 2202 14 95 None <br /> MW-3 8/25/97 19 27 671 21 76 15 05 None <br /> Groundwater Gradient <br /> Groundwater elevations were plotted to a known datum to prepare a groundwater contour map <br /> The groundwater flow direction was toward the north-northwest at sampling time, and a flow <br /> gradient of 00062 was calculated Historic groundwater flow trends typically vary from <br /> north-northeasterly to north-northwesterly <br /> Chemical Analysis and Results <br /> Priority Environmental Labs Inc tested the groundwater samples using EPA Methods 50301 <br /> 8015 and 602 for Total Petroleum Hydrocarbons as Gasoline (TPHG), Benzene, Toluene, <br /> . Ethylbenzene and Xylene (BTEX) and fuel oxygenates including Methyl-tert-butyl-ether <br /> (MTBE) The analytical reports are attached, and the results are listed below in Table 2 <br /> Table 2 Groundwater Chemical Data <br /> Well No Date TPHG B T E X Fuel Ox <br /> ------------------------------ug/I------------------------------- <br /> MW-1 8/25/97 ND ND ND ND ND ND <br /> MW-2 8/25/97 ND ND ND ND ND ND <br /> MW-3 8125/97 ND ND ND ND ND ND <br /> Blank 8/25/97 ND ND ND ND ND ND <br /> ND - None detected NA - Not Analyzed ug/I - micrograms per liter <br /> Fuel Ox - Fuel Oxygenates <br /> Discussion <br /> Groundwater flow direction appears consistent with historically observed trends Contaminants <br /> were not observed in any well If the none detected trend continues for two more quarters, then <br /> a proposal to close the site will be made to PHS-EHD <br /> Monitoring Schedule <br /> The quarterly monitoring for this site is scheduled to continue at quarterly intervals <br /> Haley Wells Project No 4111 Page 2 _ <br />
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