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If correction of soil below slab levels is not performed, or if quality control is <br />abandoned once footing levels are achieved then some premature deterioration (cracking, <br />settlement) over time, with early loss in value, may be anticipated. <br />Slabs should have clearance from maximum anticipated groundwater Level and <br />should be protected from intrusion by surface waters. This groundwater clearance should <br />be five feet or more from known groundwater level. According to boring evidence, <br />groundwater was encountered and this advisory is met when slabs are set at an assumed <br />floor elevation of 100.0 feet. Site grading should be controlled so that no opportunity is <br />provided for water to enter subsoils or foundation wall backtill areas. <br />Please refer to the standard data sheet at the end of this report entitled "Floor Slab <br />MoistureNapor Protection ". <br />II) Screw Anchor System, Pilings or Drilled Piers <br />A. Foundations <br />Install steel screw anchors (such as Helical Pier Foundation Systems, installed as <br />per manufactures recommendation), Pilings or Drilled Piers . Foundation to be <br />constructed of pored concrete walls with steel reinforcement or with grade beams and <br />pored concrete wall with steel reinforcement, please consult a structural engineer for <br />design. <br />B. Garage and Basement Floor Slabs <br />All Garage and Basement Floor Slabs shall be structural, concrete with steel <br />reinforcement, please consult a structural engineer for design. <br />Slabs should have clearance from maximum anticipated groundwater level and <br />should be protected from intrusion by surface waters. This groundwater clearance should <br />be five feet or more from known groundwater level. According to boring evidence, <br />groundwater was encountered and this advisory is met when slabs are set at an assumed <br />floor elevation of 100.0 feet. Site grading should be controlled so that no opportunity is <br />provided for water to enter subsoils or foundation wall backfill areas. <br />Please refer to the standard data sheet at the end of this report entitled "Floor Slab <br />Moisture /Vapor Protection ". <br />3. Sidewalk/Exterior Building Backfill <br />Soils placed below exterior sidewalks should be compacted to a minimum of 95% of <br />Standard Proctor density. Other recommendations relative to backfilling the structure and placing <br />fill below exterior slabs appears on the standard data sheets at the end of this report. These sheets <br />are entitled: <br />• Basement /Retaining Wall Backfill and Water Control <br />• Freezing Weather Effects on Building Construction <br />- 1 3 - <br />6 <br />