2001 W MUKILTEO BLVD 2016-01-01 MF Import

1. � '� Proposed McCabe Residrnce Remodel Everett, Washington Projxt No. 6G-9701022 Page 6 • Replece the existinQ drein line that dischuQd on the slope east of the house with an wdartmged, non-perforated pipe that ia routed to a suitable diecherae location such as a �torm �ewer or t6e bottom of the dope. • Construct �ght line dixherge pipa tbr footing and roof drains, with cleanouts at eppropriau locetions for effective inspcction end maintemnce, which drain by graviry to a suitable discherge location such as tix bottom of slope or a stoim drsin. • Coc�huct a new 6ench d�ain along du top of the slope on the north and aat sides of the site. The drains should extend as far souih and west as siu c�nstrai�s pecnut, and �lwuld extend aa dap � tlx g�ade w the discharge location allows, at la+st ? to 4 fat dap et the shallowat point . The new drsin should be a graviry system, and should not depend on elcetric pumps. A minimum 6-inch diuneter pipe sl�ould be situated in a trtnch at tesst 18 inctks wide and filled with pea gravel or washcd mund rock to within 6 inches of the ground surfece. The upper siu inches could be covered with planting soi t md sceded with geass. My cover for the dcaiu should not impede infiltration of surfece water co the d�ain. Waste soil generated from conshvc6on of the French dcain should not be plecxd on or above the slope, but shoutd be recnoved &om the site or at least piaced in m area distmt from site slopes. • Refrain from placing any additional yerd vveste, fill meteriel, consttuction material stockpiles, or other surcherges betwan the house and top of tF�e slope, and considec removiag any accessible existing yard waste or other debris from the tops of the slopes. � Remove the fil( wedge and rockery from below the deck. This fill is in a particulariy poor loca6on, is loose, and provides a good reservoir for perched groundwater. The fill does not appear to serve a useful piupose with the present site configuradon. • Instell some focm of leak conteinment and/or leak detcction for the outdoor spe. �� .:,: �� :, •�� .: „ Based upon the subsurface conditions encountercd during exploradon, the following site preparation procedures have been developed end include recommendations rogarding site drainage, stripping, subgrade protection, proofrolling end subgrade compacdon. In order to reduce the potential for movement of slopes on or adjacent to the site as a rcsult of construction activides, slope movement risk reduction measures should be implemrnted first, follow�d by site preparation. Earthwork duting the dry summer months between about May and September, and carefiil management of site dtainege would also provide lower risks of slope movement during construcdon.