City of Boulder/USGS Water Quality Monitoring

Map bar plots are plotted
on the following scale

Marker indicates no data available.
Boulder Creek Watershed
North Boulder Creek - Boulder Creek
Dissolved Oxygen Time Series for 1999
Indicated monitoring site:

Select on the map plot to view detailed time series information for Dissolved Oxygen at that site. Select on the site icon to view time series information for all parameters at that site.


Information on Dissolved Oxygen:

Dissolved Oxygen (DO) is the amount of oxygen dissolved in the water. DO is a very important indicator of a water body's ability to support aquatic life. The amount of DO in water depends on several factors, including temperature (the colder the water, the more oxygen can be dissolved); the volume and velocity of water flowing in the water body; and the amount of organisms using oxygen for respiration. The amount of oxygen dissolved in water is expressed as a concentration, in milligrams per liter (mg/l) of water. The optimal DO for adult brown trout is 9-12 mg/l. Human activities that affect DO levels include the removal of riparian vegetation, runoff from roads, and sewage discharge.

More general information about Dissolved Oxygen
Measurement of Dissolved Oxygen
Factors affecting Dissolved Oxygen
Standards regarding Dissolved Oxygen
Interpretation of Boulder Creek Dissolved Oxygen data
Data Source: City of Boulder Water Quality Monitoring
Point of Contact: Chris Rudkin
Collection and Analysis notes
Analysis method: YSI 600XL probe

Return to the BASIN water quality catalog

Return to the BASIN environmental data catalog


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Last Page Update - Friday December 23, 2005