“In 2015, the Rhode Island Cesspool Phaseout Act of 2007 was expanded to provide for the eventual removal of all cesspools in the state. Effective January 1, 2016, cesspools must be replaced with approved onsite wastewater disposal systems (OWTS) or connection to municipal sewers within one year of sale or transfer of a property. Certain waivers apply (see first attachment).”
RIDEM’s Cesspool Phaseout Act of 2007 Frequently Asked Questions
Warwick Sewer Authority