Water Quality Index Scores (1994-2013) from The WA State Department of Ecology's River and Stream Monitoring Program.

data.wa.gov | Last Updated 1 May 2014

Routine freshwater monitoring data collected by the The WA State Department of Ecology's River and Stream Monitoring Program are summarized by a technique called the "Water Quality Index" (WQI). The WQI ranges from 1 (poor quality) to 100 (good quality). The WQI summary does not include non-standard elements like metals. For temperature, pH, oxygen, and fecal coliform bacteria, the WQI is based on criteria in Washington’s Water Quality Standards, WAC 173-201A. For nutrient and sediment measures where standards are not specific, results are based on expected conditions in a given region. Multiple constituents are combined and results aggregated over time to produce a single score for each station and each year.

Tags: water quality index, washington state river and stream fresh water quality, ecology

This dataset has the following 26 columns:

Column NameAPI Column NameData TypeDescriptionSample Values
Stationstationtext
Station Namestation_nametext
SSRssrtextSalmon Recovery Region
1994_1994number
1995_1995number
1996_1996number
1997_1997number
1998_1998number
1999_1999number
2000_2000number
2001_2001number
2002_2002number
2003_2003number
2004_2004number
2005_2005number
2006_2006number
2007_2007number
2008_2008number
2009_2009number
2010_2010number
2011_2011number
2012_2012number
2013_2013number
AveavenumberAverage WQI Score during the period of 1994-2013.
Commentcommenttext
Location 1location_1location