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. Paul Madson and Associates, Ltd. • Project BABX-92-813 January 6, 1993 Page 3 Although groundwater was not observed in either of the borings, insufficient time was available to allow groundwater to seep into the holes. In clayey type soils, it may take several days for groundwater in a bore hole to rise to its hydrostatic level. We anticipate groundwater levels will probably conespond to water level elevations in the wetland area adjacent to this lot. C. Analysis and Recommendations C.1 Proposed Construction It is our understanding that a single-family home will be constructed on this lot. Structures of this type generally have shallow to deep basements, masonry or concrete bearing walls to first floor level or adjacent outside grade, with wood-frame construction above. At this time the proposed grades have not been set. C.2 Discussion Basetl on the soils encountered in the borings, it is our opinion the site is general(y suitable for support of the proposed house. However, some limited subcutting of organic topsoil will be required. Because of the high groundwater in the wetlands surrounding the lot, it is our opinion that a basement should not be built below existing grades unless grades are raised. For the purpose of this report, we have assumed the house will be constructed without a basement and we have further assumed that the first-floor elevation will be approximately the same as the current site grade, or at an elevation of 935. C.3 Foundations Based on our assumptions, the soils encountered at the proposed footing grade are suitable for support of the proposed house. The footings may be designed for a net allowable bearing pressure up to 3,000 pounds per square foot (ps fl. Depending on the actual building loads, this bearing pressure may result in relatively narrow strip footings or small column footings. Therefore, we recommend the strip footings be at least 18 inches wide and the column footings