Jackson Bottom Wetlands Preserve
Tualatin River Water Quality Data
The Tualatin River drains an area of 712 square miles. The river generally flows in easterly direction from its headwaters in the Coast Range to its confluence with the Willamette River. The river is approximately 83 miles long, with several tributaries, including Scoggins, Gales, Dairy, Rock and Fanno Creeks.
Jackson Bottom Wetlands Preserve is located in the 3000-acre Jackson Bottom floodplain of the Tualatin River. Jackson Bottom is located just downriver of the Dairy Creek confluence with the Tualatin. In winter and spring, as a result of significant precipitation events, the Tualatin River overflows onto large areas of the Preserve. Most of the Preserve is at 128-130 feet MSL (above Mean Sea Level). The Tualatin River water quality monitoring site at the Preserve is at River Mile (RM) 44.4. (RM 0 is at the confluence with the Willamette River.)
The following parameters are measured at this site:
- Temperature
- pH
- Dissolved oxygen
- Conductivity
- Turbidity
- River stage
Tualatin River Graphs for Last 14 Days
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Preliminary Real-Time Data
Note that the data shown here are preliminary. They are based on raw data measurements with little or no review to ensure the quality of the data. If the data are used for any purpose, a disclaimer should be included that denotes the provisional status of the data and the possibility of errors.
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