This database is superseded by sediment geochemistry of the National Geochemical Database. Geochemical data for sediments (stream sediments, lake sediments, and others) collected in the United States and analyzed by the USGS. The data were originally entered into the in-house PLUTO database. This is a subset of DDS-47.
Get the entire data set:
plutosed.zip (zipped shapefile 6M bytes)