The Tualatin River Basin is located in the Washington County, Oregon. The river was detected having high chlorophyll a concentration and low dissolved oxygen concentration during summer time, which violated DEQ water quality standards. A mathematical model (HSPF) was used to simulate physical, chemical and biological processes in the basin...
The Tualatin River Basin in Washington County, Oregon has been identified by the Oregon Department of Environmental Quality (DEQ) as "Water Quality Limited." Algal blooms have become commonplace in the lower , reaches of. the river during summer months. Phosphorus has been identified as the nutrient upon which to base...
Colonies of millions of quagga and zebra mussels foul and clog pipes, water treatment plants, and dam turbines and give a competitive boost to toxic algae. It takes only one contaminated boat and the right conditions for zebra and quagga mussels to infest a new watershed; once they have been...
Hopper dredge disposal of coarse grained sediment was
investigated between May and September, 1986, at a designated disposal
area, Site G, in Coos Bay, Oregon. The objectives of the study were
to: (a) identify and describe the benthic macrofaunal community
structure at Site G during May and September, 1986; (b)...