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a Geo Engineers <br /> EA <br /> Northstar Development <br /> K n January 3, 1991 <br /> p o�o <br /> Page 2 <br /> LO <br /> Zp Following clearing and stripping, the topographic ridges of the site were <br /> H C cut to design subgrades. The excavated soils were used to raise site grades <br /> hid �j and construct road grades, drainage control features and as trench backfill <br /> material. Fill placement and compaction was monitored on a full-time basis <br /> y y from September 15, 1989 to October 10, 1989 and on an intermittent basis <br /> t" H from July 17, 1990 to August 20, 1990. <br /> W <br /> Construction and preparation of the subgrades for the road and sidewalk <br /> ny <br /> �j areas were monitored on an intermittent basis from January 30, 1990 to <br /> y October 11, 1990. The backfilling of the trenches for utilities was <br /> monitored on an intermittent basis from January 30, 1990 through <br /> September 27, 1990. <br /> Installation of the drainage control measures was monitored on an ; <br /> 1 <br /> intermittent basis. Construction of the temporary detention pond dam in the <br /> I "park" area was not monitored by GeoEngineers. Recommendations for the pond <br /> liner material were provided at your request and placement of this material <br /> _ was observed to be in accordance with our recommendations. <br /> M�' CONCLUSIONS <br /> f Based on our observations and the results of in-place density tests <br /> Cduring project construction, it is our opinion that the geotechnical aspects <br /> '� for Phases I and II of the Hanabrook Proj^.ct have been completed in general <br /> compliance with the plans and specifications and in accordance with our <br /> recommendations. GeoEngineers was not consulted on the modified design nor <br /> were we involved in the construction of the temporary detention pond dam <br /> i <br /> r structure located within the park area. <br /> ' 0 0 o <br /> K <br />