State Comments on Frozen Data

EPA captures (or "freezes") aggregated state data yearly. These frozen datasets are used internally for EPA's State Review Framework.

Several states have indicated that at the time the data were frozen, that errors existed. States that identified problems with the data were asked to send either a data file with corrected information, or a link to a state website that explained data errors or corrections. EPA is providing public access to these comments to see the efforts that EPA Regions and states are taking to improve data quality.

State comments on frozen data are available through the links below, organized by the submission year. Additional data quality information which is not specific to the frozen data is available through the known data problems and State Review Framework Recommendations Tracker.