To amend the Safe Drinking Water Act to provide for parity between private entities and public entities with respect to civil actions against the entities that arise from the ownership or operation of public water systems.

Amends the Safe Drinking Water Act to provide for the dismissal of civil actions commenced in Federal or State courts against private entities for claims arising from the ownership or operation by such entities of public water systems in any circumstance in which such an action would have been dismissed if the private entity were a public entity that owned or operated such a system.