The Colorado Data Sharing Network (CDSN) project developed and maintained by the Colorado Water Quality Monitoring Council serves as a state-wide water quality data management system to benefit the State of Colorado's Non-Point Source program participants and all water data users and generators within the state.
Prior to 2009, CDSN project utilized a STORET database that was distributed by the U.S. Environmental Protection Agency (EPA). This database was decommissioned by the EPA on September 30, 2009.