
A drainage map from the Sea-Tac Communities Plan, sponsored by the Port of Seattle and King County (document reference 6.3.3, POS 21001), showing the Miller Creek Basin divided into numbered drainage sub-areas with general impervious surface factors (under 20% to 50% or greater) and percentage of total runoff contributions (40%, 28%, 18%, and 14%) for each major zone.Open full document
Notes
A drainage map from the Sea-Tac Communities Plan, sponsored by the Port of Seattle and King County (document reference 6.3.3, POS 21001), showing the Miller Creek Basin divided into numbered drainage sub-areas with general impervious surface factors (under 20% to 50% or greater) and percentage of total runoff contributions (40%, 28%, 18%, and 14%) for each major zone.