CT0419221 · Connecticut
31 GRIST MILL RD
Federal fiscal 2026Q3 · EPA violation and follow-up records
- Violation records shown
- 40
- EPA health-based flag
- 3
- Health-based records unresolved in this snapshot
- 3
- Monitoring and reporting records
- 21
Find the utility’s annual water quality report. For current advisories, check the utility or local drinking-water authority.
Violations and what followed
Among 35 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 444 days. The interval uses the reporting periods and dates on file.
EPA health-based flag · Unaddressed by formal action
LSL InventoryViolation 259 · LEAD AND COPPER RULE REVISIONS · Lead and Copper Rule RevisionsNoncompliance period start October 17, 2024 · first reported May 27, 2025
No linked action row appears in the records shown.EPA health-based flag · Unaddressed by formal action
Failure To Address ContaminationViolation 224 · Groundwater Rule · Ground Water RuleNoncompliance period start February 8, 2020 · first reported September 29, 2020
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 133 August 24, 2020 Informal State Violation/Reminder Notice 134 August 24, 2020 Informal State Public Notification requested EPA health-based flag · Unaddressed by formal action
Treatment Technique, Level 1 Assessment (RTCR)Violation 42 · Revised Total Coliform Rule · Revised Total Coliform RuleNoncompliance period start May 28, 2017 · first reported July 3, 2017
No linked action row appears in the records shown.Other or unclassified · Resolved
Consumer Confidence Report Complete Failure to ReportViolation 262 · Consumer Confidence Rule · Consumer Confidence RuleNoncompliance period start July 1, 2025 · period end July 23, 2025 · first reported December 15, 2025 · EPA return-to-compliance field July 23, 2025
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 224 July 23, 2025 Resolving State Compliance achieved Monitoring or reporting · Unaddressed by formal action
LSL ReportingViolation 260 · LEAD AND COPPER RULE REVISIONS · Lead and Copper Rule RevisionsNoncompliance period start October 17, 2024 · first reported May 27, 2025
No linked action row appears in the records shown.Monitoring or reporting · Resolved
Lead Consumer NoticeViolation 258 · Lead and Copper Rule · Lead and Copper RuleNoncompliance period start April 1, 2023 · period end May 25, 2023 · first reported August 29, 2023 · EPA return-to-compliance field May 25, 2023
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 215 May 8, 2023 Informal State Violation/Reminder Notice 216 May 25, 2023 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 256 · Combined Radium (-226 and -228) · Radionuclides and Revised Rad RuleNoncompliance period start October 1, 2021 · period end December 31, 2021 · first reported February 16, 2022 · EPA return-to-compliance field December 31, 2021
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 202 March 31, 2022 Resolving State Compliance achieved 200 April 27, 2022 Informal State Violation/Reminder Notice 201 April 27, 2022 Informal State Public Notification requested 205 April 29, 2022 Informal State Public Notification received Monitoring or reporting · Resolved
Failure to Conduct Assessment MonitoringViolation 254 · E. COLI · Ground Water RuleNoncompliance period start May 1, 2021 · period end May 31, 2021 · first reported August 17, 2021 · EPA return-to-compliance field May 31, 2021
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 195 November 30, 2021 Resolving State no longer subject to Rule Monitoring or reporting · Resolved
Lead Consumer NoticeViolation 253 · Lead and Copper Rule · Lead and Copper RuleNoncompliance period start April 1, 2021 · period end October 6, 2021 · first reported August 17, 2021 · EPA return-to-compliance field October 6, 2021
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 188 October 6, 2021 Resolving State Compliance achieved Monitoring or reporting · Resolved
Failure to Conduct Assessment MonitoringViolation 252 · E. COLI · Ground Water RuleNoncompliance period start April 1, 2021 · period end April 30, 2021 · first reported August 17, 2021 · EPA return-to-compliance field April 30, 2021
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 183 June 22, 2021 Informal State Violation/Reminder Notice 184 June 22, 2021 Informal State Public Notification requested 187 June 30, 2021 Resolving State Compliance achieved 193 October 27, 2021 Informal State Public Notification received Monitoring or reporting · Resolved
Monitoring, Routine (RTCR)Violation 251 · Revised Total Coliform Rule · Revised Total Coliform RuleNoncompliance period start April 1, 2021 · period end April 30, 2021 · first reported August 17, 2021 · EPA return-to-compliance field April 30, 2021
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 181 June 22, 2021 Informal State Violation/Reminder Notice 182 June 22, 2021 Informal State Public Notification requested 185 June 30, 2021 Resolving State Compliance achieved 194 October 27, 2021 Informal State Public Notification received Monitoring or reporting · Resolved
Failure to Conduct Assessment MonitoringViolation 246 · E. COLI · Ground Water RuleNoncompliance period start March 1, 2021 · period end March 31, 2021 · first reported May 17, 2021 · EPA return-to-compliance field March 31, 2021
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 141 May 20, 2021 Informal State Violation/Reminder Notice 142 May 20, 2021 Informal State Public Notification requested 144 June 30, 2021 Resolving State Compliance achieved 191 October 27, 2021 Informal State Public Notification received Monitoring or reporting · Resolved
Monitoring, Routine (RTCR)Violation 241 · Revised Total Coliform Rule · Revised Total Coliform RuleNoncompliance period start March 1, 2021 · period end March 31, 2021 · first reported May 17, 2021 · EPA return-to-compliance field March 31, 2021
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 141 May 20, 2021 Informal State Violation/Reminder Notice 142 May 20, 2021 Informal State Public Notification requested 143 May 31, 2021 Resolving State Compliance achieved 191 October 27, 2021 Informal State Public Notification received Monitoring or reporting · Resolved
Monitoring, Routine (RTCR)Violation 239 · Revised Total Coliform Rule · Revised Total Coliform RuleNoncompliance period start February 1, 2021 · period end February 28, 2021 · first reported May 17, 2021 · EPA return-to-compliance field February 28, 2021
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 141 May 20, 2021 Informal State Violation/Reminder Notice 142 May 20, 2021 Informal State Public Notification requested 143 May 31, 2021 Resolving State Compliance achieved 191 October 27, 2021 Informal State Public Notification received Monitoring or reporting · Resolved
Failure to Conduct Assessment MonitoringViolation 234 · E. COLI · Ground Water RuleNoncompliance period start February 1, 2021 · period end February 28, 2021 · first reported May 17, 2021 · EPA return-to-compliance field February 28, 2021
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 141 May 20, 2021 Informal State Violation/Reminder Notice 142 May 20, 2021 Informal State Public Notification requested 144 June 30, 2021 Resolving State Compliance achieved 191 October 27, 2021 Informal State Public Notification received Monitoring or reporting · Resolved
Failure to Conduct Assessment MonitoringViolation 233 · E. COLI · Ground Water RuleNoncompliance period start January 1, 2021 · period end January 31, 2021 · first reported May 17, 2021 · EPA return-to-compliance field January 31, 2021
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 141 May 20, 2021 Informal State Violation/Reminder Notice 142 May 20, 2021 Informal State Public Notification requested 144 June 30, 2021 Resolving State Compliance achieved 191 October 27, 2021 Informal State Public Notification received Monitoring or reporting · Resolved
Monitoring, Routine (RTCR)Violation 232 · Revised Total Coliform Rule · Revised Total Coliform RuleNoncompliance period start January 1, 2021 · period end January 31, 2021 · first reported May 17, 2021 · EPA return-to-compliance field January 31, 2021
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 141 May 20, 2021 Informal State Violation/Reminder Notice 142 May 20, 2021 Informal State Public Notification requested 143 May 31, 2021 Resolving State Compliance achieved 191 October 27, 2021 Informal State Public Notification received Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 225 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start December 10, 2020 · period end June 2, 2021 · first reported February 12, 2021 · EPA return-to-compliance field June 2, 2021
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 140 April 21, 2021 Informal State Violation/Reminder Notice 177 June 2, 2021 Resolving State Compliance achieved Monitoring or reporting · Resolved
Lead Consumer NoticeViolation 226 · Lead and Copper Rule · Lead and Copper RuleNoncompliance period start September 29, 2020 · period end February 4, 2021 · first reported February 12, 2021 · EPA return-to-compliance field February 4, 2021
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 138 February 4, 2021 Resolving State Compliance achieved Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 221 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start March 15, 2020 · period end June 2, 2021 · first reported June 30, 2020 · EPA return-to-compliance field June 2, 2021
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 135 September 29, 2020 Informal State Violation/Reminder Notice 170 June 2, 2021 Resolving State Compliance achieved Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 220 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start March 15, 2020 · period end June 2, 2021 · first reported June 30, 2020 · EPA return-to-compliance field June 2, 2021
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 135 September 29, 2020 Informal State Violation/Reminder Notice 168 June 2, 2021 Resolving State Compliance achieved Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 219 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start March 15, 2020 · period end June 2, 2021 · first reported June 30, 2020 · EPA return-to-compliance field June 2, 2021
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 135 September 29, 2020 Informal State Violation/Reminder Notice 172 June 2, 2021 Resolving State Compliance achieved Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 218 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start March 15, 2020 · period end June 2, 2021 · first reported June 30, 2020 · EPA return-to-compliance field June 2, 2021
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 135 September 29, 2020 Informal State Violation/Reminder Notice 175 June 2, 2021 Resolving State Compliance achieved Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 81 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start January 17, 2019 · period end June 2, 2021 · first reported March 28, 2019 · EPA return-to-compliance field June 2, 2021
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 103 March 1, 2019 Informal State Violation/Reminder Notice 162 June 2, 2021 Resolving State Compliance achieved Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 79 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start January 17, 2019 · period end June 2, 2021 · first reported March 28, 2019 · EPA return-to-compliance field June 2, 2021
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 103 March 1, 2019 Informal State Violation/Reminder Notice 166 June 2, 2021 Resolving State Compliance achieved Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 70 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start October 12, 2018 · period end June 2, 2021 · first reported January 28, 2019 · EPA return-to-compliance field June 2, 2021
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 95 November 30, 2018 Informal State Violation/Reminder Notice 160 June 2, 2021 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, Source Water (GWR)Violation 67 · E. COLI · Ground Water RuleNoncompliance period start September 5, 2018 · period end May 16, 2022 · first reported November 23, 2018 · EPA return-to-compliance field May 16, 2022
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 108 March 15, 2019 Informal State Violation/Reminder Notice 109 March 15, 2019 Informal State Public Notification requested 173 June 2, 2021 Informal State Public Notification received 210 May 16, 2022 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, Source Water (GWR)Violation 69 · E. COLI · Ground Water RuleNoncompliance period start August 2, 2018 · period end May 16, 2022 · first reported November 23, 2018 · EPA return-to-compliance field May 16, 2022
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 106 March 15, 2019 Informal State Violation/Reminder Notice 107 March 15, 2019 Informal State Public Notification requested 169 June 2, 2021 Informal State Public Notification received 210 May 16, 2022 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, Source Water (GWR)Violation 68 · E. COLI · Ground Water RuleNoncompliance period start August 2, 2018 · period end May 16, 2022 · first reported November 23, 2018 · EPA return-to-compliance field May 16, 2022
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 104 March 15, 2019 Informal State Violation/Reminder Notice 105 March 15, 2019 Informal State Public Notification requested 171 June 2, 2021 Informal State Public Notification received 210 May 16, 2022 Resolving State Compliance achieved Other or unclassified · Unaddressed by formal action
Public Notification Violation for NPDWR ViolationViolation 65 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start May 7, 2018 · first reported July 2, 2018
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 87 June 15, 2018 Informal State Violation/Reminder Notice Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 64 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start April 13, 2018 · period end June 2, 2021 · first reported July 2, 2018 · EPA return-to-compliance field June 2, 2021
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 84 May 14, 2018 Informal State Violation/Reminder Notice 158 June 2, 2021 Resolving State Compliance achieved Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 61 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start February 17, 2018 · period end June 2, 2021 · first reported March 29, 2018 · EPA return-to-compliance field June 2, 2021
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 71 March 14, 2018 Informal State Violation/Reminder Notice 152 June 2, 2021 Resolving State Compliance achieved Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 60 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start February 17, 2018 · period end June 2, 2021 · first reported March 29, 2018 · EPA return-to-compliance field June 2, 2021
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 71 March 14, 2018 Informal State Violation/Reminder Notice 154 June 2, 2021 Resolving State Compliance achieved Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 59 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start November 30, 2017 · period end June 2, 2021 · first reported March 13, 2018 · EPA return-to-compliance field June 2, 2021
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 69 January 22, 2018 Informal State Violation/Reminder Notice 156 June 2, 2021 Resolving State Compliance achieved Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 55 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start August 13, 2017 · period end June 2, 2021 · first reported December 12, 2017 · EPA return-to-compliance field June 2, 2021
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 56 November 15, 2017 Informal State Violation/Reminder Notice 145 June 2, 2021 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, Source Water (GWR)Violation 41 · E. COLI · Ground Water RuleNoncompliance period start November 4, 2016 · period end May 16, 2022 · first reported March 30, 2017 · EPA return-to-compliance field May 16, 2022
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 47 April 12, 2017 Informal State Violation/Reminder Notice 48 April 12, 2017 Informal State Public Notification requested 159 June 2, 2021 Informal State Public Notification received 210 May 16, 2022 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, Source Water (GWR)Violation 40 · E. COLI · Ground Water RuleNoncompliance period start November 4, 2016 · period end May 16, 2022 · first reported March 30, 2017 · EPA return-to-compliance field May 16, 2022
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 47 April 12, 2017 Informal State Violation/Reminder Notice 48 April 12, 2017 Informal State Public Notification requested 159 June 2, 2021 Informal State Public Notification received 210 May 16, 2022 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, Source Water (GWR)Violation 37 · E. COLI · Ground Water RuleNoncompliance period start August 4, 2016 · period end May 16, 2022 · first reported December 15, 2016 · EPA return-to-compliance field May 16, 2022
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 41 February 16, 2017 Informal State Violation/Reminder Notice 42 February 16, 2017 Informal State Public Notification requested 155 June 2, 2021 Informal State Public Notification received 210 May 16, 2022 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, Source Water (GWR)Violation 36 · E. COLI · Ground Water RuleNoncompliance period start August 4, 2016 · period end April 28, 2022 · first reported December 15, 2016 · EPA return-to-compliance field April 28, 2022
6 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 41 February 16, 2017 Informal State Violation/Reminder Notice 42 February 16, 2017 Informal State Public Notification requested 155 June 2, 2021 Informal State Public Notification received 203 April 28, 2022 Informal State Intentional no-action 225 April 28, 2022 Resolving State no longer subject to Rule 226 April 28, 2022 Resolving State Compliance achieved Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 15 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start October 12, 2015 · period end June 2, 2021 · first reported March 31, 2016 · EPA return-to-compliance field June 2, 2021
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 14 March 2, 2016 Informal State Violation/Reminder Notice 147 June 2, 2021 Resolving State Compliance achieved
EPA data and scope
How to read the records
The enforcement snapshot is federal fiscal 2026Q3. The EPA archive labels its violation file October 13, 2026. EPA says federal reporting can lag by several months. For current advisories, check your utility or local drinking-water authority.
- We matched active community water systems by public water system ID between EPA’s system search and SDWIS inventory. We show violations with a recorded noncompliance, initial reporting or return-to-compliance date from 2021 onward, plus earlier records listed as Addressed or Unaddressed.
- EPA’s health-based flag identifies violations of contaminant or disinfectant limits or treatment requirements. Monitoring and reporting violations describe required tests or reports. Neither category measures household exposure.
- Addressed means EPA records formal enforcement on a violation that remains unresolved in the snapshot. Unaddressed means no formal action is recorded for an unresolved violation. Resolved can mean compliance was restored, the rule ceased to apply, or further action was unnecessary. Archived is a separate status.
- We count a violation once per water system and group its distinct linked actions. Conflicting records are set aside. Places are EPA-listed search locations and can include mailing locations. Use the provider name and system ID to identify your service.
EPA data dictionary and files · EPA reporting and enforcement FAQ · Find an annual water quality report · How to get the report from your utility