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<br /> ' Page 6 - 1120-10815
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<br /> fIELO EXPLORATIOH PROCEDURES
<br /> Test Borings
<br /> Two soil test borings aere made on October 5, 1983, 7he borings Nere put
<br /> Cown at the locattons shown on the attached sketch. The surface elevations
<br /> ^- were estimated from the contours given on the site survey furnished to us.
<br /> � Soil Sampling
<br /> , . Soil sampling was done in accordance with A57M: D 1586-67. Using this
<br /> •�• procedure. a 2" 0.0, split barrel sampler is driven into the soil Dy a
<br /> " 140 lb weight fa111ng 30". After an initial set of 6". the number of
<br /> ` � bla+s required to drive the sampler an additionat 12" is known as the
<br /> ..
<br /> � .
<br /> penetration resistance or N value. The N value is an index of the
<br /> ,, relative denslty of cohesionless soils and the consistency of cohesive
<br /> . . soils. � �
<br /> M
<br /> ' ' Sofl Classification
<br /> .,.
<br /> ,:.
<br /> � As the samples were obtained in the field. they were visually and
<br /> , manually classified by the crew chief in accordance with ASTM: 0
<br /> � 2488-69. Representative portions of the samples were then returned to
<br /> the laboratory for further examination and for verification of the
<br /> �
<br /> field classification. A sam,le of the gtacial tilt was tested in the
<br /> � laDoratory, logs of the borings lndicating the depth and identification of
<br /> ,
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