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Filtering by: Subject Water quality -- Oregon -- Congresses Advisor Selker, John S.

Temperature and infiltration characterization of a constructed wetland for wastewater treatment

Creator:

Gregory, Christopher T.

Abstract:

The City of Woodburn, Oregon's Wastewater Treatment Plant (WWTP) has been investigating several natural alternatives for improving effluent quality. Based on its current National Pollution Discharge Elimination System (NPDES) permit, the WWTP will require additional reduction of temperature and ammonia levels in the summer, especially in the critical month of...

Resource Type:

Masters Thesis

Full Text:

influence the rate of microbial processes leading to water quality treatment, such as 7
Chemical and isotopic patterns of nitrate variability in the southern Willamette Valley, Oregon

Creator:

Vick, Christopher Flanders

Abstract:

A relatively stable, persistent and historical problem with elevated NO₃⁻ concentrations in rural drinking wells in the southern Willamette Valley, Oregon is evident. What is the origin of NO₃⁻ in rural drinking water wells in this area? The answer to the question is not simple. Many non-point sources contribute to...

Resource Type:

Masters Thesis
Infiltration and temperature characterization of a wastewater hyporheic discharge system

Creator:

Stewart, Ryan D.

Abstract:

The Clean Water Act imposes Total Maximum Daily Load (TMDL) limits on pollutant concentrations within wastewater effluent; in Oregon, thermal discharge is one of the pollutants subject to regulation. The City of Woodburn, Oregon, funded a series of pilot scale studies to investigate the utility of natural systems to reduce...

Resource Type:

Masters Thesis

Full Text:

Environmental Quality (ODEQ) has informed the City of Woodburn, located in northwestern Oregon, that a