The following provisions of the Lake Whatcom Watershed Overlay District (WCC 20.51) apply only within the geographical boundaries of the Lake Whatcom watershed.
Stormwater Facilities (WCC 20.51.420) on parcels within the Lake Whatcom watershed boundaries, a permanent stormwater quantity and quality facility is required for:
If a Stormwater Facility is required, the proposed facility must be designed to meet one of the following criteria from the 2019 Department of Ecology (DOE) Stormwater Management Manual for Western Washington:
On parcels within the Lake Whatcom watershed, clearing activities which expose more than 500 square feet of soil are not permitted from October 1 through May 31 per WCC 20.51.410:
A TESC plan must be submitted at the time of Natural Resource Assessment submittal or building permit submittal (whichever comes first). Appropriate TESC measures must be installed prior to any clearing activity. A TESC inspection must occur prior to the first building permit inspection.
On lots within the Lake Whatcom, Lake Padden and Lake Samish watersheds, a Tree Removal Permit is required for the removal of any tree, unless the tree(s) to be removed is associated with a development proposal. For specific tree removal requirements please refer to our Tree Removal Page. If the tree(s) is/are an immediate threat to person or property, the tree may be removed without review.
For more information on tree removal limits in the Lake Whatcom, Lake Padden and Lake Samish watersheds, please refer to our Tree Removal Page.