Animas River reports, data and maps


CDPHE Action Report - Gold King Mine Spill

Long term monitoring report

The long-term monitoring plan describes the surface water, sediment and biological monitoring to be performed by the department in the Upper Animas River basin from spring 2016 through summer of 2017 in Colorado.The data collected will be used in assessing risks to public health and the environment in the basin.
As a part of the plan, the division is performing ongoing data collection to reflect the long-term impacts to the environment.

Water quality sampling and data

After Incident reporting

United States Geological Survey - Real time results

Drinking water

Fish tissue


The department and EPA may have different test result numbers due to varying sample locations and collection methods. All samples are analyzed using EPA approved methods.
Sampling focuses on contaminants typically found in mine drainage, including aluminum, antimony, arsenic, barium, beryllium, boron, cadmium, calcium, chromium, cobalt, copper, iron, lead, molybdenum, magnesium, manganese, mercury, nickel, potassium, selenium, silicon, silver, sodium, strontium, thallium, titanium, uranium, vanadium, and zinc. It also looks at water pH and hardness.

Maps and GIS data

Mining stream impacts and restoration efforts

This data is provided by the Division of Reclamation and Mining Safety.
If you have questions about this data, please contact
Todd Hartman with the Department of Natural Resources at todd.hartman@state.co.us.

If you have questions about this data, please contact us.