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Station operated in cooperation with the cities of Portland, Gresham, Milwaukie and Damascus, Clackamas County's Water Environment Services, Multnomah County, and East Multnomah Soil and Water Conservation District. Additional support provided by the city of Happy Valley.
NOTE: Additional data on the Johnson Creek Basin can be found at the Johnson Creek Basin Project Page.
NOTE: The most current shifted rating for this site can be found at USGS Rating Depot website.
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Value May 23