Water Quality Parameter Explanation E. Coli type of fecal coliform bacteria that comes from human and animal waste - the EPA water quality standard for E. coli bacteria is 394 colony forming units per 100 mL. Nitrates runoff from fertilizer use, leaching from septic tanks, and erosion of natural deposits- can cause oxygen depletion Phosphorus/Phosphates excess can cause depletion of dissolved oxygen and death and decay of vegetative and aquatic life Turbidity measure of the cloudiness of water pH measure of the acidic or alkaline nature of a solution - measures of 6-9 are acceptable levels Dissolved Oxygen measure of the gaseous oxygen in solution - should be less than 110% Data related to all of the water quality parameters listed below was not collected at all sites or in all years. Data Related to Was collected at E. Coli, Nitrates, Phosphorus Link Creek, Outlet of Suttle Lake, Metolius River Head Springs, Metolius River Fenceline, Metolius River Upstream of Lake Creek, Mouth of Lake Creek, Camp Sherman Bridge, Allingnham Bridge, Gorge Campground, Jack Creek, Canyon Creek, Lower Bridge, Summer Lane Creek pH, Turbidity, Dissolved Oxygen Lower Bridge, Candle Creek, Jefferson Creek, Montys Campground, Summer Lane Creek Water Data Variable Definitions Stream The river or creek from which samples were collected Location The specific location of samples collected within the named stream Date The date on which the sample was collected Analyte The name of the water quality parameter for which the sample was tested Value The numeric result Units The units of results if provided Method The method used to measure the analyte DL Detection limits if available DLUnits The units of detection limits if available