CCP 01-31-1994 - Laserfiche WebLink

Home Browse Search

I ~. AET #93-1379 - Page 6 I Bussard Court ffiorinl!s #8-10} I These borings indicate 2" of bituminous pavement overlying 4" to 10" of non-erushed gravel base. Soils directly below the base are mostly sandy lean clay fill with some clayey sand and I lean clay. This fill is particularly soft and wet at Boring #8 which was placed in the west cul- de-sac area. Underlying natural soils are organic clay/silty clay in the cul-de-sac area and sandy . lean clay glacial till at the two remaining boring locations. - '. Dunlao Street CBorinl!s #11-13) I Bituminous pavement thicknesses at the test locations range from l'h" to 3 \4 ". Base thicknesses range from 4*" to 6'h", and the base is a non-crushed material. Clayey fill soils again underlie I the base, although these fIll soils tend to be reasonably stable based on N-values and sample review. Underlying natural soils are mostly sandy lean clay/clayey sand glacial till, although .. a wet silty sand layer is present above the till at boring #12. I Water Level Measurements During the drilling operations, we probed the boreholes for the presence of ground water. The I results of theses measurements are noted on the attached boring logs. As indicated, no ground water entered most of the boreholes at the time of drilling. The exception to this appears at I Boring #12 where the silty sand alluvium is interbedded between the clayey fill and underlying till. A water level was measured at a depth of 3.8' beneath the surface at this boring location. I It is our judgment this water is perched/trapped within the moderate draining granular layer. I You should expect ground water levels to fluctuate in the future. Fluctuations occur due to varying seasonal and yearly rainfall and snow melt, as well as other factors. I The attached Appendix sheet entitled "Boring Logs: Ground Water Information" provides I additional information on ground water level measuring. f I