In case you missed the past week in Great Lakes conservation news:

Great Lakes fish consumption advisories could be inadequate and exposing consumers to higher levels of toxic chemicals than anticipated, according to Great Lakes Echo. The major contaminants of concern are PCBs (polychlorinated biphenyls) and mercury. Both have serious health consequences when consumed in unsafe amounts.

The Toledo Blade reports that Toledo is making good progress towards overhauling and expanding the city’s sewage network. The city is on pace to complete the project by 2020.

The EPA revised its ruling on Flint’s drinking water treatment, writes MLive. The city’s treatment plant will be required to test-run raw Lake Huron water for three months before it can deliver water to residents and businesses.