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<br /> may represent gradational changes between sediments types in the
<br /> field. Our exploration pite were approximately located in the field
<br /> by meaeuring from site features shoxn on the aite plan prepared by
<br /> R.W. Thorpe and Asaociates, inc.
<br /> The conclueione and recommendatione preaented in thie report are
<br /> baeed on the explorationa completed for thie etudy. The number,
<br /> location, and depth of the exploratione were completed within eite
<br /> and budgetary conetrainta . Becauae of the nature of exploratory
<br /> work below ground, extrapolation of eubeurface conditione between
<br /> field explorations is neceseary. It ahould be noted that differing
<br /> subeurface conditione may aometimes be preaent due to the random
<br /> nature of depoaition and the alteration of topography by paet
<br /> grading and/or fi111ng. The nature and extent of any variatione
<br /> between the field explorationa may not become fully evident until
<br /> conatruction. If variationa are observed at that time, it may be
<br /> neceseary to re-evaluate specific recomsendatione in thie report and
<br /> make appropriate changes.
<br /> 3_1 91te stratiqraohv
<br /> The 12 exploration pits accompliehed for thie atudy penetrated
<br /> between 9 to 12 feet below exieting ground aurface. In qeneral, 9
<br /> atratigraphic unita were encountered underlying 4 to 12 inches of
<br /> topeoil material. Theee unita are deecribed below, from oldeat to
<br /> youngeet.
<br /> The oldeat and lowermoet unit encountered in the exploration pita,
<br /> Unit 1 , aae only obeerved in EP-2. Unit 1 coneieted of a denae,
<br /> wet, brown, ailty, gravelly, fine to coarae sand. The upper eurface �
<br /> of Unit 1 was encountered approximately 6-1/2 feet below ground
<br /> aurface and extended beyond the termination depth of the exploration
<br /> pit (8 feet) .
<br /> Unit 2 was encountered in EP-1, Ep-2, EP-3, EP-5, EP-6, EP-7, EP-10
<br /> and EP-12. This unit wae compoeed of a denae to very dense, moist,
<br /> brown to grey, slightly oxidized in aome areae , qravelly, eilty,
<br /> fine to coarae eand With cobblea. The upper eurface of these
<br /> aedimenta uere encountered at depthe ranqing from 1/2 to 8-1/2 feet
<br /> belox ground surface. In EP-5, EP-10 and EP-12 , the upper portion
<br /> of this unit xas obaerved to be in a medium denae condition due to
<br /> the effecta of weathering by ground water. With the exception of
<br /> �P-2 , Unit 2 penetrated beyond the termination depth of the
<br /> explorationa. in EP-2, thie unit wae obeerved to be 9 feet thick
<br /> and wae underlain by Unit 1 sedimenta.
<br /> Unit 3 aedimenta were observed in EP-2, EP-9 , CP-6, EP-7 EP-8 , EP-9
<br /> and EP-il , at depth9 ranging from 1 to 7-1/2 feet below ground
<br /> aurface. The upper portion of thie unit coneieted of inedium dense,
<br /> moiat to aet, broWn to ateel grey, mottled, oxidized, eilty to very
<br /> eilty, fine to medium sand with acattered gravele. The lower
<br /> portion of this unit conaieted of a medium dense , moiet to
<br /> saturated, brown to grey, ailty, gravelly, fine to coaree sand xith
<br /> cobbles. In EP-2, EP-6 and EP-7, Unit 3 was obeerved overlyinq Unit
<br /> 3 Z�
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