Private Drinking Water Intakes and In-Home Treatment Systems

A pond with an active bloom. The surface of the water looks as if someone spilled bright green paint.

Private drinking water intakes and in-home treatment systems are not regulated. Unlike public drinking water supply facilities, no requirement exists for owners of these intakes or systems to test for cyanotoxins. Without the testing of source water at intakes or finish drinking water from in-home systems when blooms are present, you cannot tell if your system has been affected by toxins at levels that could harm your health.

If you are unsure whether your in-home treatment system is designed to reduce or eliminate cyanotoxins that may be present during a bloom, OHA recommends you avoid drinking from household taps and use an alternative source of drinking water.

Risk Communications Plan and Documents

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