Monthly Mean Dissolved-Solids Concentration and Monthly Mean Dissolved-Solids Load Data
Flow weighted monthly mean dissolved-solids concentrations (mg/L) data and monthly mean dissolved-solids load data from 1928-2016 were computed by USGS using raw data from the Bureau of Reclamation. These data were computed by USGS for all of the seven sites (listed below).
Monthly mean dissolved-solids concentrations and loads were not calculated for several time periods (listed below) because of insufficient discrete dissolved-solids concentration data:
Discrete Dissolved-Solids Concentration Data
Discrete dissolved-solids concentrations (mg/L) data and specific conductance (microsiemens/cm) from 1990-2016 were computed using raw data from the Bureau of Reclamation. These data were computed for four sites (listed below).
Colorado River above Imperial Dam, AZ-CA, 09429490 (1990-2016), dissolved-solids
Colorado River above Imperial Dam, AZ-CA, 09429490 (1993-2016), specific conductance
Colorado River below Hoover Dam, AZ-NV, 09421500 (1993-2016), dissolved-solids
Colorado River at Northern International Boundary, above Morelos Dam, AZ, 09522000 (2001-2016), dissolved-solids
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Original FGDC Metadata