Map bar plots are plotted
on the following scale
North Boulder Creek - Boulder Creek
Specific Conductance Time Series for 1999
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.
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.