6007 1ST DR SE 2016-01-01 MF Import

-��i �� Page Thr=e a �� � � � Surficial soils along the sideslope above the catchbasin have �� sloughed in response to wet soil conditions, and loss of ^up- �u port at the base of the slope by catchbasin excavation. Slou- �� ghed materials have been removed and fill has been placed in Qy the disturbed area. No other evidence of soil movement was encountered along the ��g embankment. ' H Storm sewers convey most of the ranoff generated upslope i'rom � �t+ the parcels to the base of the slope, and sur£ace water which G0H perches on structural fill which underlies the building lots �5260 is conveyed to the northwest along a berm which follows the `di� top of the embankment. A temporary overflow pipe has been in- I ,� stalled near the r.orth corner of Lot 23, conveying this water _ � to the base of the slope. I Scotch broom has begun to color.ize the sideslope, 3nd grasses 'i clover at;�l trees have been plani,ed along the berm adjacent to Brookrid�e =1vd. Soils ex�osed on the building lots were generally structural iill, vrith the exception of native loamy sand and gravel soil exposed near the southwest corner o£ Lot 19� and a mantle ef ,� , loose, organic upper fill soils. Some water loosened soils � `1 were encountered in a footin� excavation on Lot 23. �! P.egional exr.osures in cut banks adjacent to the sites indicst { that the lets are underl2ir. bf a th_ck sequence of outwash 1 �"'�1' sand and CT'RVP.1. L� . � i II '�� 1 �� • ' .a: I �� i �� I �� P�ative soil esposure ir, util. + excavation. S.'++. Corner of L t t4 1�. I � �F+, _ � ��? i;ote oxidized and stratified l '�� '� � "*}�;• , � �oils at base o° rod. \ .,� _ ; +. � ;.. k;, D 'F'""'' -- fAFTf± AN•lLYS/S � � • '