3431 NASSAU ST 2018-01-02 MF Import

04/14/04 07_19 F_1\4253476588 C1111:1 EVERF:IT Z016/032 Geologic)nve.rtivnriuu and r6vnrclurirol hireincerin l�ir1 NH Corner 35"' Sl and Nassau St Everetl. Nashinguur 00-02-20 the slope along the northern side of the property down into the base of' the house or into the adjacent ravine area should be located so that they drop directly down the fall line of the slope. These utilities may need to be anchored to the slope by U-shaped 94 rebar driven a minimum 18" into the slope. We recommend that all utility backtill consist of clean, granular structural fill placed per the recommendations contained in NO lion 4.3, Structural Fill, of this report or other as approved by GES, Inc. at the time of construction 4.6 Foundation Placement and Design Recommendations We recommend that all foundation loads be carried upon undisturbed or slightly weathered Transitional Bed (Q1b) soil found at an approximate base elevation of el. 172.5 during our site investigation. Based on our site investigation, we believe that it is possible that these bearing soils will rise in elevation to the west and south as the overlying uncontrolled fill materials are removed from within the building envelop excavation area. However, this is unknown and will have to be confirmed by GES, Inc. during foundation excavation. Foundation excavation should carefully follow all pertinent recommendations contained in section 4.4 Cuts and Excavations of this report. Transitional Bed (()Ih) soil is described as gray brown, slightly mottled, somewhat massive, very fine- to medium -grained sandy silt to silt with occasional lenses of fine-grained sand. Do too higher than acceptable differential seltlement potentials, we recommend that building foundations not be supported upon the overlying uncontrolled till that covers a significant portion of this site. All foundation elements should be supported upon Transitional lied (UIh) and/or Controlled Density Fill (CDF) if the CDF extends a oliniMUm G" beyond foundation elements in all directions. In some instances, especially where ground water seepage has been encountered, foundation elements may be supported upon 2"4" crushed rock. The crushed rock must extend a minimum 18- beyond foundation elements in all directions. In all instances GES, Inc. should confirm bearing Soil fin foundation support and where necessary, confirm with the contractor the type of fill to be placed and used for foundation support in each different foundation area. Non compliance with this recommendation could result in the removal of the fill and its replacement under controlled conditions upon confirmation by GES, Inc. If building elevations change 12 (TES, Inc.