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3500 - Local Oversight Program
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PR0543384
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Last modified
10/24/2018 4:30:32 PM
Creation date
10/24/2018 1:57:10 PM
Metadata
Fields
Template:
EHD - Public
ProgramCode
3500 - Local Oversight Program
File Section
FIELD DOCUMENTS
RECORD_ID
PR0543384
PE
3528
FACILITY_ID
FA0005612
FACILITY_NAME
RUSSELL, LUTHER
STREET_NUMBER
23675
Direction
W
STREET_NAME
AIRPORT
STREET_TYPE
WAY
City
MANTECA
Zip
95336
APN
22608009
CURRENT_STATUS
02
SITE_LOCATION
23675 W AIRPORT WAY
P_LOCATION
04
QC Status
Approved
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EHD - Public
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11_� I.—Y <br /> for copying , with a ground level of plus 25 ' and a water <br /> level of plus 13 ' , groundwater could be found; 10' below the <br /> surface at the present time at the project site. As rioted in <br /> the appended report , the water levels shown on the County <br /> maps is the hydrostatic, head level of the aquifers in the <br /> area and does not necessarily represent the level that water <br /> might either be found or not Bund if these aquifers are <br /> separated from the near surface deposits by aquicludes . <br /> F'igUX; C- 2 shows the water levels for the fall of 1986. These <br /> data indicate that conditions were about the same as in 1990 <br /> with a water level of about plus 151 . <br /> Figure 3 shows the water levels for the spring of 1983, a <br /> recent year of high water levels . This map shows that the <br /> groundwater head was about plus 20' at that time, indicating <br /> that it would rise to within 5 ' of the surface. <br /> These data show that the vadose zone, it it is in hydraulic <br /> connection with the aquifers below about -1001 , where most <br /> of the local water wells are completed, could have been ex- <br /> tended by about 51 between 1983 and 1990, from 5.' below the <br /> surface to about 101 below the surface . This writer believes <br /> that to be true for the general area.; however, local <br /> conditions at the excavation site could be different . <br /> 00 CURRENT STATUS <br /> The site is as described in the attached report. No further <br /> on-site work has been done . Bids have been received for the <br /> baring of test wells and permits for these wells, are being <br /> prepared for submittal at the time of this writing. ©n-site <br /> activities cannot be started until this report of planned <br /> operations has been approved by the EHD. <br /> PROPOSED WORK <br /> A generalized safety operations plan for the project has <br /> been prepared and will be submitted along with the permit <br /> applications . The drilling contractor, Sgrectrum ,Exploration <br /> Co . , is expected to supply all necessary safety equipment <br /> for their crew and to have their own site-specific plan. <br /> Water Level and. Direction--of--Flow Determinations <br /> Figure 4 is a site map showing the location of the property <br /> and various pertinent features . The is not a surveyed map, <br /> however it was adapted from the ')wner ' s property map and it <br /> should be accurate . <br /> The object, of the work plan is to investigate the vadose <br /> zone and the water tatle below to determine if either has <br /> up been contaminated by gasoline leaks from the former <br /> 2 <br />
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