Stream and river monitoring plan

 
The monitoring plan’s objective is to gather, assess and report data regarding the chemical, physical and biological integrity and quality of state surface waters for the federal Clean Water Act (CWA) 303d list of impaired waters and the 305b report of status of water quality in Colorado as the EPA Integrated Report.
 
In support of these objectives, we maintain a system of statewide stream water quality monitoring sites for collecting chemical, physical and biological data. Each year sites are added in a specific focus basin to collect additional data in support of future basin wide rulemaking hearings conducted by the Water Quality Control Commission.