The Swamp Land Act of 1849, originally intended to give the state of Louisiana the unproductive swamplands within its borders and use the proceeds to construct the drains and levees necessary to reclaim these lands, was extended to Oregon in 1860. Oregon did not act on the matter until 1870, but once begun, it became a prolific source of political corruption, fiscal irresponsibility, fraud, and land speculation and monopolization. Even though the physiography of Oregon was much different than the states in the Mississippi Valley, millions of acres of "swampland" were filed upon and the state sold hundreds of thousands of acres long before it received legal title to these lands. In most cases final patents were never issued by the federal government. Rather than the proceeds of the sales of these lands going toward reclamation, the funds often went to the friends of state officials for dubious services. Appropriations, based on the anticipated sale of swampland, were made for the owners of wagon roads for projects never completed. This created a state indebtedness which the sale of swampland alone could not erase. A major result of the Swamp Land Act in Oregon was the withholding of arable land and water rights from actual settlers in the predominantly semiarid regions of Oregon by land speculators and by cattle barons who used it to monopolize vast tracts of grazing land. Litigation over disputed swampland claims occurred well into the twentieth century. Because little has been written on this topic, primary sources have been extensively relied upon for the research. The most important of these sources were the Portland Oregonian, government documents of the state of Oregon, and the documents of the United States Department of Interior.

The purpose of this research is to hydraulically characterize an engineered wetland in Albany, Oregon. The wetland receives treated wastewater from both Albany Millersburg Water Reclamation Facility (AMWRF) and ATI Wah Chang. AMWRF's water is municipal waste water. ATI Wah Chang's water comes from its nearby metal processing plant. The wetland is designed to remove thermal input as well as nitrogen species from both sources. ATI Wah Chang effluent has significant nitrate concentrations. A reliable model is needed to estimate the denitrification potential of the wetland. In order to construct a model, accurate hydraulic parameters such as residence time and flow rate are needed. In the first few days after ATI started flow, the aquatic conductivity level of the wetland increased significantly. Conductivity was used as a tracer to estimate residence times in the wetland as well as to measure the split ratios from different water sources in the wetland (ATI Wah Chang and AMWRF). A pilot test on conductivity and flow rate was carried out on a single pond. The pilot test was designed to accurately measure the influent and effluent from a single pond. Using this information, rates of infiltration as well as unintended flow paths could be identified. A third tracer test was performed using Rhodamine W.T. This test allowed for the determination of the residence time of each pond, the wetland as a whole, and identified stagnant zones within the ponds. To simulate the nitrogen transportation and transformation process, a numerical model was developed. The model's input parameters include reaction rate constants for nitrification and denitrification, volume of each pond, flow rate, flow path connections, and temperature. The model simulated the tracer test that was performed on the wetland to verify its accuracy. The model is also capable of predicting denitrification potential in both pilot scale and field scale. It is also temperature sensitive because temperatures vary significantly; for instance, in winter when the average temperature in Albany is <5��C, denitrification rates decrease significantly. Through this research, hydraulic characterization as well as current denitrification rates in the wetland were identified. Strategies for increasing the denitrification rate were also identified through this research. / Graduation date: 2012