Water Quality Annual Data Request

Request for data


The Water Quality Control Division issued a data call for water quality data and information
collected within the Arkansas and Rio Grande River Basins (Regulations #32 and #36) from
January 1, 2016 to December 31, 2020. The data received can be accessed via the link below.
This data call concluded on September 15, 2021.


This data is in a preliminary, unassessed format. This data is made available to
provide stakeholders access to the data provided to the division. The division developed a
Master Site List file that includes a list of monitoring locations, their estimated assessment
unit IDs, the type of data collected, and the file name where the data can be located. 


If you have questions regarding the data, please contact:  cdphe_wqcd_surfacewaterdata@state.co.us


Preliminary results from 2021 data request