Editing Cape Cod Bay (section)

=== Groundwater ===
The Cape's lifeline is groundwater. Rain and melting snow swiftly sink into the sandy soils, where it pools to form a massive subterranean groundwater reservoir beneath the majority of the Cape.<ref name="Waters of the Cape"/> Groundwater continues to flow into and out of ponds, feeding streams, and flowing towards the coast, finding sea level when it enters our estuaries and embayments, as water seeks the lowest elevation. Drinking water comes entirely from groundwater.<ref name="Waters of the Cape"/> This sole-source aquifer, which is protected by local, regional, state, and federal restrictions, provides all of the Cape's drinking water.<ref name="Waters of the Cape"/>