STORET Legacy Data Center
Data supplied to EPA before 1999 were all placed in Legacy STORET.
This system, designed in the 1960s, was a pioneer in the long term
archival of field water monitoring results.
The Legacy Data Center contains data of undocumented quality. Further,
these data are static. The Legacy Data Center does not permit updates,
and data here will not change over time. All new data are being
entered into Modernized STORET. Because the data do not change over
time, it is never necessary to repeat a specific download.
All data supplied to EPA since January 1, 1999 have been placed
in the Modernized STORET System. A full description of the design
of this system can be examined on our ABOUT
Modernized STORET is currently receiving new data on a regular
basis, and will continue to do so for the foreseeable future. Downloads
performed for the same sites may differ over time as a result of
the addition of new data by their owners.