We test fish from Colorado's waters for toxic substances and issue guidelines for safe eating.
- Map of locations where we have tested fish.
Which substances are tested, how levels are determined
Sources of mercury, risks of eating contaminated fish, cooking fish, commercially available fish and an introduction to statewide fish advisories
Default guidelines for the general population, women who are pregnant or may become pregnant, children ages 6 and younger
Specific fish consumption advisories and guidelines by body of water