Boyer Slough Station

Water Quality Monitoring Station

Lake Pend Oreille

How to use the graph: View data for only one year by clicking on that year in the legend. Supplemental information is provided by hovering over a data point. 

For a link to IDEQ’s Water Quality Standards, click here.

For an explanation on Box Plots, click here.


Citizen Scientist(s): Matt Bambach

Located on the northern shore of Lake Pend Oreille in Bonner County. Boyer Slough is the receiving waters of the Kootenai Ponderay Sewer District.

Boyer Slough is currently impaired for nitrogen and phosphorus. A Total Maximum Daily Load (TMDL) is in development to address these impairments. 

Location: 48° 18’37.60″ 116°29’36.50″

Support this Program!

Laboratory analysis of water samples are very expensive totalling about $1,000 per station per field season. Your donation helps cover the costs of collecting & analyzing water samples.

Become a Citizen Scientist!

Become a trained citizen scientist. Collecting water samples is a great way to enjoy time on the water & get involved in active stewardship of our local waterways!