1920 GRAND AVE 2016-01-01 MF Import

GEOTECHNICAL ENGINEERING STU�;' - 1920 Grand c/o Stuchell Enterprises E-9465 DecembEr 21, 2000 Page 11 _ Site Drainage Groundwater seepage was not encountered in our borings, however wet soils were � encountered between six and nine feet below grade at the top of the slope. � If seepage is encountered in foundation or grade beam eycavations during construction, the bottom of the excavation shoul� be sloped tc one or more shallow sump pits. The • collected water can then be oumpeo from these pits to a positive and permanent discharge, such as s nearb�� s:orm drair,. �ependin5 on the magnitude of such seepape, it may also be necessary to interconnect the sump pits by a system of connecto► � trenches. The appropriate locations of subsuriace drains, if needed, should be established during grading operations by ECI's representative at which time the seepage areas, if present, .. may be rnore clearly defined. � During construction, the site must be graded such that surface water is directed off the - site. W'ater must not be allowed to stand in areas where buildings, slabs, or pavements are to be constructed. Loose surfaces should be sealed at night by compacting the surface to reduce the potentiai for moisture infiltration into the soiis. Final site grades must a�low for drainage away from the building foundations. The ground should be , sloped at a gradient of 3 percent for a distance af at least ten feet away from the build- ings, except in paved areas, which can be sloped at a gredient of 2 percent. • IIMITATIONS � Our recommendations and conclusions are based on the site materials observed, review L of the referenced report, selective laboratory testing and engineering analyses, the design information provided us, and our ex�erience and engineering judgment. The conclusions and recommendations are professional opinions derived in a manner consistent with that �' level of care and skill ordinarily exercised by other members of the professio� cuRenUy �"' practicing under similar conditions in this area. No warranty is expressed or implied. � � � L LErth �o�w�unh� ��a � L