04/16/2026
IDPH has updated its Fish Advisory Map. There are updates that pertain to Randolph County bodies of water. Including Mary's River, Randolph County Lake, and the Mississippi River.
More Information can be found here: https://dph.illinois.gov/topics-services/environmental-health-protection/toxicology/fish-advisories/map.html
🎣 Before you cook your catch, check the advisory.
Each year, we test fish from waterways across the state for contaminants like PFAS, PCBs, and mercury. Based on the results, we issue fish consumption advisories to help people know how often fish can be safely eaten.
This year’s update includes new guidance for PFOS, a type of PFAS chemical. As a result, some fish from certain waterways now have new consumption limits. For example, largemouth bass from Campus Lake (SIU–Carbondale) and Monee Reservoir should not be eaten.
A statewide mercury advisory also remains in place. Children under 15 and people who are pregnant, nursing, or may become pregnant should eat predatory fish like bass, walleye, and salmon no more than once per week.
IDPH’s interactive Fish Advisory Map provides guidance for 100+ Illinois lakes, rivers, and reservoirs so anglers can quickly check recommendations for the water where they’re fishing.
🔗 Learn more and check the map: https://dph.illinois.gov/topics-services/environmental-health-protection/toxicology/fish-advisories.html