Wayland Town Crier 5/7/16: Tainted fish consumption still a concern for regulators. With warmer weather, many anglers are heading to area lakes and rivers, but some, if not most, of those bodies of water have strict guidelines on what fish are safe to eat, and why. The advisories aren’t always posted, and may not be common knowledge.
The state maintains an online database which includes several bodies of water in Wayland. Details for Lake Cochituate, Heard Pond and the Sudbury River are online here.