Aquifer Protection

Rethinking Aquifer Protection in Dedham

Shouldn’t the Aquifer Protection Overlay District (APOD) protect both the quantity and the quality of Dedham’s drinking water? Today, it does not fully do so. 

When Dedham's original Aquifer Protection Overlay Districts (APODs) were established more than 35 years ago, water protection was understood very differently. Since then, environmental conditions have changed, development pressures have increased, and the importance of protecting source water quality has become far better understood.

Dedham's APODs have a complex history and an unclear division of responsibility among town government entities. Dedham currently has two APODs: one covering Fowl Meadow and another covering the Bridge Street wells. While Dedham is largely in compliance with Massachusetts Zone II regulations, there is a long-standing exception at Bridge Street. This exception appears to stem from timing issues between local approvals and a prolonged state regulatory process. As a result, Dedham has remained out of compliance with Massachusetts law in this area for decades.

The Town of Dedham should consider updating its APOD bylaws – at a minimum, to fully cover the town's aquifers, and ideally to more closely align with Zone III protections for the Bridge Street and Fowl Meadow well fields. Strengthening these protections would help support the long-term sustainability of Dedham's water resources, improve raw water quality, reduce reliance on more expensive external water supplies, and better safeguard both public health and local ecosystems. It would also support long-term compliance with Massachusetts drinking water regulations.

APOD Recommendations submitted to Dedham Conservation Commission, December 2025