Tapcensus

1,1,1-Trichloroethane violations in Rhode Island

9 active public water systems in Rhode Island had a 1,1,1-Trichloroethane violation in the past three years, 1 of them in the latest quarter of EPA's data. What 1,1,1-Trichloroethane is and why it matters.

Health effects: Chronic exposure to 1,1,1-trichloroethane affects the central nervous system (dizziness, incoordination) and can cause liver and cardiovascular effects at elevated doses. EPA has not classified it as a human carcinogen. It degrades in anoxic groundwater to 1,1-dichloroethylene and eventually vinyl chloride, which are more acutely toxic breakdown products.

Systems with a 1,1,1-Trichloroethane violation

Latest quarter first, then largest first
SystemServesStatusRules violated, 3 yrUnresolved
Wood River Health Services
Hopkinton · Washington County 		150 3 0
Westerly Water Department
Westerly · Washington County 		35,298 2 0
Prudence Island Water District
Portsmouth · Newport County 		1,500 4 0
Wrights Farm Corp.
Burrillville · Providence County 		1,125 2 0
Central Beach Fire District
Charlestown · Washington County 		470 6 1
Foster Xtra Mart
Foster · Providence County 		220 3 0
Bethel Village Water Assn
Hopkinton · Washington County 		180 11 1
Chimera INC
Glocester · Providence County 		133 3 0
Coventry National Guard
Coventry · Kent County 		50 3 2
About this data

A system is counted once if any of its violations in the past three years involved 1,1,1-Trichloroethane, including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not 1,1,1-Trichloroethane 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.