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
Ortho-phosphate Time Series for 2000
Indicated monitoring site:

Select on the map plot to view detailed time series information for Ortho-phosphate at that site. Select on the site icon to view time series information for all parameters at that site.


Information on Ortho-phosphate:

Phosphorus in natural waters is usually found in the form of phosphates (PO4-3). Phosphates can be in inorganic form (including orthophosphates and polyphosphates), or organic form (organically-bound phosphates). Orthophosphate is sometimes referred to as "reactive phosphorus." Orthophosphate is the most stable kind of phosphate, and is the form used by plants. Orthophosphate is produced by natural processes and is found in sewage.

More general information about Ortho-phosphate
Measurement of Ortho-phosphate
Factors affecting Ortho-phosphate
Standards regarding Ortho-phosphate
Interpretation of Boulder Creek Ortho-phosphate data
Data Source: City of Boulder Water Quality Monitoring
Point of Contact: Chris Rudkin
Collection and Analysis notes
Analysis method: SM 4500-P E

Return to the BASIN water quality catalog

Return to the BASIN environmental data catalog


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Last Page Update - Monday December 26, 2005