It’s APCC’s fourth season of monitoring cyanobacteria in freshwater ponds on Cape Cod. Toxic blooms have been detected in some of the Cape’s ponds that you should be aware of. Walkers Pond in Brewster and Deep Pond in Falmouth are two examples and in both cases, the town’s health department has posted advisory signs for children and pets. To view APCC’s monitoring results and for more information on cyanobacteria, go to