The National data download has been modified as follows on 11/01/2016:
- The download database was changed to reflect the new HUC 12 database "NHDPlusV2WBDSnapshotEnviroAtlasCONUS" as the basis for calculating data values. New attributes and data layers are represented in the new data download. For more information about the new tables, please review the EnviroAtlas website at https://www.epa.gov/enviroatlas - in particular the Dynamic Data Matrix.
The older (Prior to November 2016) tables using the WBDHUC12alb22MAR2011 HUC 12 database have moved to the "ARCHIVE" folder in this download area along with a separate change log.
Other changes:
- Added CRP table to National database and added CRP metadata
11/29/2016