City of Boulder Water Quality Monitoring

Map bar plots are plotted
on the following scale

Marker indicates no data available.
Boulder Reservior Watershed
Boulder Reservoir
Specific Conductance Time Series for 1999
Indicated monitoring site:

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


Information on Specific Conductance:

Specific Conductance is a measure of how well water can pass an electrical current. It is an indirect measure of the presence of inorganic dissolved solids, such as chloride, nitrate, sulfate, phosphate, sodium, magnesium, calcium, and iron. These substances conduct electricity because they are negatively or positively charged when dissolved in water. The concentration of dissolved solids, or the conductivity, is affected by the bedrock and soil in the watershed. It is also affected by human influences. For example, agricultural runoff can raise conductivity because of the presence of phosphate and nitrate.

More general information about Specific Conductance
Measurement of Specific Conductance
Factors affecting Specific Conductance
Standards regarding Specific Conductance
Interpretation of Boulder Reservior Specific Conductance data
Data Source:
Point of Contact:
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 - Tuesday December 27, 2005