Rivers, lakes, and streams data

We assess data collected internally by our environmental data unit. Data are also obtained and assessed by the U.S. Geological Survey, River Watch, and third parties.

Submit data to the Water Quality Control Division

Data Call for the San Juan River and Dolores River Basins and Gunnison and Lower Dolores River Basins (Regulations #34 and #35).

Due date September 1, 2025.

• Data call instructions
• Parameters of interest
• Watershed map and HUCs
• Data submission training
• Submit data

Data can be submitted using the following templates:

• Chemistry data and field measurements
  • River physical and chemical data template
  • Lakes physical and chemical data template
• Continuous temperature data
  • Please submit cleaned data files without the Daily Maximum (DM) and the Weekly Average Temperature (WAT) calculated.
  • ​Continuous temperature data template
• Aquatic biology and habitat measurements
  • 2025-Instructions for Submitting Bioassessment Data
  • Required-Bioassessment Data Submittal Checklist
  • EDAS Final ID List
  • WQCD_Master Bug Import File
  • WQCD_New Taxa
  • WQCD_Stations Predictors Import File

Get water quality data

Data received through the previous data call:

• Preliminary 2023 South Platte Data

Division's water quality data can be obtained through the following sites:

• National Water Quality Monitoring Council's Water Quality Portal
  • ​Download the division and other third-party data
  • Use organization ID 21COL001_WQX to obtain division data
• Division GIS and other spatial data

Other valuable data sources

• USGS National Water Information System
• Colorado Data Sharing Network