Tapcensus

Dalapon violations in Rhode Island

8 active public water systems in Rhode Island had a Dalapon violation in the past three years. What Dalapon is and why it matters.

Health effects: Long-term exposure to dalapon is associated with liver and kidney effects in animal studies. EPA has not classified it as a human carcinogen based on available data. The general population is the primary concern for chronic low-level exposure through drinking water.

Systems with a Dalapon violation

Unresolved first, then largest first
SystemServesStatusRules violated, 3 yrUnresolved
Quonset Business Park
North Kingstown · Washington County 		13,000 6 0
Kingston Water District
South Kingstown · Washington County 		3,968 3 0
Prudence Island Water District
Portsmouth · Newport County 		1,500 4 0
Quonochontaug East Beach Water Associati
Charlestown · Washington County 		300 2 0
Bethel Village Water Assn
Hopkinton · Washington County 		180 11 1
Hillsdale Housing Cooperative, Inc.
South Kingstown · Washington County 		170 1 0
Nasonville Water District
Burrillville · Providence County 		150 2 0
Dean Warehouse Services
Hopkinton · Washington County 		25 1 0
About this data

A system is counted once if any of its violations in the past three years involved Dalapon, including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Dalapon alone.

Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The Rhode Island records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet. Retrieved from ECHO on Oct 11, 2026.