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FIELD WORK FRIDAY, APRIL 3, 1992
<br /> ' Spectrum Drilling Co . , Van Leonard, Driller, and DRA were on
<br /> site and commenced auger operations at 9 :AM on Monitor Well
<br /> # 1 . This well and subsequent wells will be referred to as
<br /> ' MW # 1 , MW # 2 and MW # 3 .
<br /> All well locations were remeasured after drilling was
<br /> completed and the final locations are shown on attached
<br /> Figure # 1 (Fig. # 3 from work plan) . All well depths in
<br /> the report below will be with reference to ground level
<br /> ' (bgl ) . The area being flat to the eye, vertical adjustments
<br /> for boring log purposes are not needed. Water table and
<br /> hydraulic slope data measurements use Mean Sea Level (MSL)
<br /> as a reference .
<br /> Auger boring on MW #1 commenced using 10" nominal size
<br /> hollow auger flights . About 4" of asphalt/rock surface was
<br /> ' penetrated. Boring from surface to 51 . Dark grey-brown clay,
<br /> moist, no hydrocarbon odor. From 51 to 7 ' • Tan to brownish
<br /> clay, dry, slight odor, possibly hydrocarbons . From 71 to
<br /> 17 ' • Tan to brownish clay, small cuttings, 1/8" to 91 ,
<br /> ' larger cuttings to 1 " to 171 . From 171 to 24' ' Clay as
<br /> above, gradual color change to darker brown, slightly moist,
<br /> strong degraded petroleum odor at 221 -241 . Sample # 1 at 241
<br /> to 25 1/21 , tan to brown clay as above, no discernible odor.
<br /> An extra sample, labeled X, was taken at this point for a
<br /> quality control check. From 241 to 32 ' ' Brownish clay as
<br /> ' above, moist, very warm to touch. From 32 ' to 34 ' Clay as
<br /> above, strong hydrocarbon odor. Sample # 2 at 34 1/2 ' to
<br /> 36 ' , brownish grey clay as above, 1 " of coarse sand at about
<br /> 361 , strong hydrocarbon odor in clay. From 361 to 411 :
<br /> ' Brownish grey clay as above, strong hydrocarbon odor. From
<br /> 411 to 461 : Clay as above changing to dark brown, sandy clay
<br /> at about 471 , hydrocarbon odor at 441 , pebbles in clay.
<br /> ' Linda Turkette, EHD, arrived on site at about 11 : 30 AM.
<br /> ' Sample # 3 at 471 to 48 1/2 ' , brown, sandy to gravelly clay.
<br /> From 471 to 491 . Clay as above changing to blue clay at 49 '
<br /> From 491 to 541 : Brownish clay as above, dry, hydrocarbon
<br /> odor, cuttings clumping to 1 1/2" in size, clay balls at 54 '
<br /> ' with strong odor, no pebbles or gravel . From 541 to 571 :
<br /> Brownish clay as above, silty, brown sand at 571 , warm,
<br /> hydrocarbon odor. Sample # 4 at 571 to 58 1/21 , brownish
<br />' clay changing to blue clay at bottom of sample, black carbon
<br /> inclusions . From 571 to 67 ' : brownish and blue clay, warm
<br /> moist, light hydrocarbon odor. Sample # 5 at 671 to 68 1/21 ,
<br /> brown, silty clay, almost reddish brown color, little or no
<br /> odor. From 671 to 771 : Tan to reddish brown clay as above,
<br /> . very little moisture, possibly slight odor, driller believes
<br /> he hit water at 77" . Bit had wet clay on bottom when pulled
<br />' from hole. Sample # 6 at 771 to 78 1/21 , lost bottom 8" of
<br />' 3
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