National Water Quality Assessment (NAWQA) Program

Added By Infochimps
National scope of NAWQA water-quality sample- and laboratory-result data and other supporting information obtained from NWIS systems hosted by individual Water Science Centers as well as national BioTDB system for aquatic biological data on communities and habitats and stored in a centralized NAWQA Data Warehouse (DWH)

Additional facts from

Dataset Summary

  • Date Released: 4/1/2000
  • Date Updated: Data is current ( daily updated)
  • Time Period: primarily 1991 to present day. Some older data back to 1895
  • Data Category Type: Raw Data Catalog
  • Frequency: varies – from one-time collection to daily depending on purpose and collection site.
  • Specialized Data Category Designation: Surveillance

Contributing Agency Information

Miscellaneous Facts


Public Domain (Government Work)

This dataset was prepared by the government and is therefore in the public domain. There are no restrictions upon its use.