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<br /> 411, screw joint, schedule 40, PVC casing was run from -35'
<br /> to surface, perforated -35' to -241 , gravel packed with # 3
<br /> Lonestar gravel from -35' to -231 , bentonite pellets placed
<br /> from -23' to -201 , hydrated by pouring water into annulus,
<br /> cement grouted from -20' to surface with 3% bentonite cement
<br /> wlic. Margaret Lagorio, EHD was on site at about 12:00 .
<br /> nc,OXL
<br /> MW # 2
<br /> At 1:20 PM, 6/18/91, a 14" core was cut in the asphalt
<br /> surface as shown on Figure 1, located about 35' southerly of
<br /> the proposed location, in the vicinity of a fire hydrant and
<br /> a bar roon sign post. This location was chosen to avoid
<br /> power lines and possible water lines. The well was bored to
<br /> about 35' bgl; split spoon cores were taken at 5' intervals,
<br /> 5' , 10' , 151 , 20' and 25' bgl (Figure 3) .
<br /> The -soils are described as follows: From surface to
<br /> --10 1/21 , tan, silty sand; from -10 1/2' to -16 1/21 , tan,
<br /> silty sand with interspersed clay; from -16 1/2' to -211 ,
<br /> light tan, silty, medium-grained sand; from -21 ' to -261 ,
<br /> coarse-grained arkosic sand; at -261to -26 1/21 , in core,
<br /> ,•' grey, plastic clay; from --26 1/2' to -301 , coarse-grained,
<br /> arkosic sand as above; from -30' to- 351 , medium to coarse-
<br /> grained, silty sand with interspersed clay. The driller
<br /> located water at about -24' to -251 .
<br /> 4", screw joint, schedule 40, PVC casing was run from --35'
<br /> ,t to surface, perforated -35' to -201 , gravel packed.with # 3
<br /> Lonestar gravel from -35' to -1711 , bentonite pellets placed
<br /> from -17, to -141 , hydrated by pouring water into annulus,
<br /> cement grouted from -14' to surface with 3% bentonite cement
<br /> mix. On this well (and MH 3), the perforated interval was
<br /> raised to -20' owing to a lack of certainty of the water
<br /> table depth.
<br /> _ t
<br /> Mw # 3
<br /> MW # 3 was bored on June 19, 1991. The site was located
<br /> about as shown on Figure 1, at the southwesterly end of the
<br /> property, near the property fence line and Moffat Blvd. The
<br /> surface at this location was packed gravel - rubble and
<br /> highly degraded asphalt. The area is a parking and repair
<br /> v: location for diesel equipment and trucks. Boring operations
<br /> commenced at 9:30_ AN, The well was bored to about-351bgl,
<br /> -
<br /> _-- corse-were taken at about -S' , lo' , 151 , 20' and 2S' bgl
<br /> (Figure 4) :
<br /> The soils sire described as follows: From surface to -101 ,
<br /> dark brown, fine to medium-grained silty sand, . possible
<br /> diesel odor in core # 1, rotated cuttings up slowly. at
<br /> '`; na odor as above. Upper 10, looks like fill material . . From
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