USGS Station / Port Angeles Water Treatment Plant / Elwha Water Treatment Plant / The Elwha Water Treatment Plant / McDonald Bridge / /
Holiday
summer solstice / winter solstice / /
IndustryTerm
Chemical treatment / /
NaturalFeature
Elwha River / /
Organization
U.S. Bureau / office of Water / US Environmental Protection Agency / Environmental Protection Agency / Federal Bureau / Washington Department of Fish and Wildlife / /