Mora_Jenn_013_PortlandStormwater_l.jpg
By Environmental Health Program
2011 (approx.)
Detailed Description
Stormwater pipe draining to the Willamette River in downtown Portland, one of the nine cities sampled in Oregon and Washington to characterize contaminants flowing to the Columbia River from wastewater-treatment plant effluent and stormwater runoff.
Sources/Usage
Public Domain.