2501 W CASINO RD 2018-01-02 MF Import

. � � _ . I GEOTECHNICAL ENGINEERING STUDY Told Development ' May 8, 1990 E-4888 Page 6 ' both water vapor transmission through the slab. Two inches of sand may be placed rner the membratie for protection during construction, to aid in curing of the concrete, and to help ' tea se a the vapor barriered�The vapor barrier and cap Ilary bre k m terial an be delet d if the slab is exterior and not subject to the cooling of an interior slab. , Excavationc end lon c sho��ld be aware that in�no case should xcavati n slopes be g ea�ep th n�the li�mits spec��ed t in 1oca1, state and federal safery re�ulations. � Temporary cuts greater than four feet in height should be sloped at an inclination no steeper than 1H:IV. If slopes of this inclination, or tlatter, cannot be constructed, or if excavations greater than four feet in depth are required, temporary ahoring may be necessary. 7'his � shoring wi11 help protect against slope or excavation rnllapse, and will provide protection to workmen in the excavation. If temporary shoring is required, we will be available to provide geotechnical shoring design criteria, if requested. � All permanent cut and fill slopes should be inclined no steeper than 1.SH:1V. These P' : recommendations are appl;cable to slopes with a maximum height of ten feet. If higher � slopes are anticipated, we should be contacted for the appropriate design and construction criteria. � We also rernmmend that all excavated slopes be examined at the time of construction by ECI's representative to verify that cunditions are as anticipated. Supplementary I recommendations can then be developed, if needed, to enhance stabiliry. Such measures can � include, but not necessarily be limited to, flattening of alopes ore installation of surface or subsurface drains, In any case, water should not be allowed to flow uncontrolled over the top of any slopes. All buildengs should be set back a distance at least equal to the height � of the stope to avuid imposing any structural load on the face of the slope. apld g owthnveget�tionao,redu eherosion potentdial and mprove stabil ry of the sufiical layer � of soil. � Site_ Dr� j Perched water waz encountered in our test pits at depths ranging from two to three feet � � below the existing ground surface. We anticipate that the perched water condition described above will be of concern during grading and potentially in the parking lat and driveway conp ruchbn s anseto dra nmthensurficial soils.�naThe maximum�d a nage ttime ould`givef the � � Earth Consultants, Inc.