In the State of Utah, the Utah Division of Water Quality and Utah Division of Drinking Water are responsible for the management and regulation of water quality. Lakes, rivers, and streams that exceed the standard levels are then placed on the DEQ 303d list in accordance with the Clean Water Act. The Act requires states to identify impaired water bodies every two years and develop a total maximum daily load (TMDL) for pollutants that a body of water can assimilate without causing the water body to exceed the water quality standards. Utah Lake was originally put on Utah's 2000 and 2004 303d list for phosphorus and total dissolved solids (TDS) exceeding recommend values. High levels of phosphorus can cause high levels of nuisance algae growth, low dissolved oxygen, and eleTDS tells about the concentration of mineral salts in the water, which can cause problems to agriculture and culinary water supplies. Excess levels of phosphorus come from multiple sources, but namely the waste water treatment plants, are extremely concerning when it comes to Utah Lake management because high levels can trigger harmful algal blooms and eutrophication There is some discussion as to how much of the phosphorus is the result of anthropogenic causes and how much is the result of historic phosphorus stored in the lake sediment.