Does Woonsocket, RI tap water have any EPA-reported violations?

As of June 2026, EPA SDWIS records show 57 violation(s) across the community water systems serving Woonsocket, of which 3 are classified by the EPA as health-based. Most older violations have returned to compliance; see the per-system list.

Where does Woonsocket, RI tap water come from?

Woonsocket is served by 6 active community water system(s). Their primary sources, per EPA records, are: surface water, groundwater.

RI / Woonsocket

RI · Tap water records

Woonsocket tap water, in plain English

Here is what the EPA's own data shows about tap water in Woonsocket. According to EPA SDWIS data retrieved June 2026, Woonsocket is served by 6 active community water systems, together reported to serve about 46,396 people.

As of June 2026, EPA records show 57 violations across the community water system(s) serving Woonsocket, going back to the earliest EPA record. 3 of these are classified by the EPA as health-based (a contaminant recorded above the limit the EPA tracks); the rest are monitoring or reporting violations. Each is listed by system below, with its status.

6

Community water systems
~46,396

People served (EPA-reported)
June 2026

EPA records reviewed through

What the EPA has on record, by system

Woonsocket Water Division

45,828 served · surface water · PWSID RI1559518

Health-based Interim Enhanced Surface Water Treatment Rule: a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded 3 times in December 2019. The EPA record for these does not include a measured level. All have since returned to compliance, per EPA records.
Monitoring Consumer Confidence Rule: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 3 times between July 2002 and July 2025. All have since returned to compliance, per EPA records.
Monitoring Chlorite: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 18 times between July 2021 and December 2021. All have since returned to compliance, per EPA records.
Monitoring Lead and Copper Rule: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 3 times in July 2021. All have since returned to compliance, per EPA records.
Monitoring Interim Enhanced Surface Water Treatment Rule: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 6 times in December 2019. All have since returned to compliance, per EPA records.
Monitoring Revised Total Coliform Rule: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 9 times between September 2016 and November 2019. All have since returned to compliance, per EPA records.
Monitoring Fluoride: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 3 times in August 2019. All have since returned to compliance, per EPA records.
Monitoring Acrylamide: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 3 times in January 2018. All have since returned to compliance, per EPA records.
Monitoring Epichlorohydrin: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 3 times in January 2018. All have since returned to compliance, per EPA records.
Monitoring E. COLI: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 3 times in November 2016. All have since returned to compliance, per EPA records.
Monitoring Coliform (TCR): a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 3 times in February 2016. All have since returned to compliance, per EPA records.