AZ0408701 · Arizona
KATHERINE LANDING DWTP
Federal fiscal 2026Q3 · EPA violation and follow-up records
- Violation records shown
- 75
- EPA health-based flag
- 15
- Health-based records unresolved in this snapshot
- 0
- Monitoring and reporting records
- 54
Counties listed by EPA · Mohave County, Arizona
Find the utility’s annual water quality report. For current advisories, check the utility or local drinking-water authority.
Violations and what followed
Among 74 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 90 days. The interval uses the reporting periods and dates on file.
Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 20768 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance period start January 1, 2026 · period end January 31, 2026 · first reported May 14, 2026 · EPA return-to-compliance field January 31, 2026
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4314 May 9, 2026 Informal State Violation/Reminder Notice 4315 May 9, 2026 Resolving State Compliance achieved EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 20763 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start October 1, 2025 · period end December 31, 2025 · first reported February 13, 2026 · EPA return-to-compliance field December 31, 2025
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4295 December 24, 2025 Informal State Violation/Reminder Notice 4296 December 24, 2025 Informal State Public Notification requested 4298 January 6, 2026 Informal State Public Notification received 4307 March 3, 2026 Resolving State Compliance achieved Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 20757 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start May 1, 2025 · period end June 24, 2025 · first reported August 15, 2025 · EPA return-to-compliance field June 24, 2025
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4281 June 3, 2025 Informal State Violation/Reminder Notice 4291 June 24, 2025 Resolving State Compliance achieved Monitoring or reporting · Resolved
Failure Submit IDSE/Subpart V Plan RptViolation 20756 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start April 1, 2025 · period end June 24, 2025 · first reported August 15, 2025 · EPA return-to-compliance field June 24, 2025
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4253 November 8, 2024 Formal State Administrative/Compliance Order without penalty issued 4275 April 30, 2025 Informal State Violation/Reminder Notice 4290 June 24, 2025 Resolving State Compliance achieved Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 20752 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start January 31, 2025 · period end June 24, 2025 · first reported March 31, 2025 · EPA return-to-compliance field June 24, 2025
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4259 February 19, 2025 Informal State Violation/Reminder Notice 4293 June 24, 2025 Resolving State Compliance achieved EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 20755 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start January 1, 2025 · period end December 17, 2024 · first reported May 13, 2025 · EPA return-to-compliance field December 17, 2024
5 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4253 November 8, 2024 Formal State Administrative/Compliance Order without penalty issued 4274 December 17, 2024 Resolving State Compliance achieved 4268 March 31, 2025 Informal State Violation/Reminder Notice 4269 March 31, 2025 Informal State Public Notification requested 4292 June 25, 2025 Informal State Public Notification received Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 20739 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start December 2, 2024 · period end February 26, 2026 · first reported February 24, 2026 · EPA return-to-compliance field February 26, 2026
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4257 January 27, 2025 Informal State Violation/Reminder Notice 4304 February 26, 2026 Resolving State Compliance achieved EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 20738 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start October 1, 2024 · period end December 17, 2024 · first reported February 18, 2025 · EPA return-to-compliance field December 17, 2024
5 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4253 November 8, 2024 Formal State Administrative/Compliance Order without penalty issued 4274 December 17, 2024 Resolving State Compliance achieved 4254 December 31, 2024 Informal State Violation/Reminder Notice 4255 December 31, 2024 Informal State Public Notification requested 4294 June 25, 2025 Informal State Public Notification received EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 20736 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start July 1, 2024 · period end September 30, 2024 · first reported November 15, 2024 · EPA return-to-compliance field September 30, 2024
5 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4252 September 25, 2024 Informal State Public Notification received 4249 October 11, 2024 Informal State Violation/Reminder Notice 4250 October 11, 2024 Informal State Public Notification requested 4253 November 8, 2024 Formal State Administrative/Compliance Order without penalty issued 4274 December 17, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Failure Submit IDSE/Subpart V Plan RptViolation 20735 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start June 30, 2024 · period end August 15, 2024 · first reported August 14, 2024 · EPA return-to-compliance field August 15, 2024
5 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4229 August 13, 2024 Informal State Violation/Reminder Notice 4230 August 13, 2024 Informal State Public Notification requested 4232 August 15, 2024 Resolving State no longer subject to Rule 4233 August 16, 2024 Informal State Public Notification received 4253 November 8, 2024 Formal State Administrative/Compliance Order without penalty issued Monitoring or reporting · Resolved
Monitoring, Routine (RTCR)Violation 20731 · Revised Total Coliform Rule · Revised Total Coliform RuleNoncompliance period start June 1, 2024 · period end June 30, 2024 · first reported February 24, 2026 · EPA return-to-compliance field June 30, 2024
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4213 July 29, 2024 Informal State Violation/Reminder Notice 4214 July 29, 2024 Informal State Public Notification requested 4234 September 13, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Report Sample Result/Fail Monitor (RTCR)Violation 20722 · Revised Total Coliform Rule · Revised Total Coliform RuleNoncompliance period start May 1, 2024 · period end September 13, 2024 · first reported February 24, 2026 · EPA return-to-compliance field September 13, 2024
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4235 June 27, 2024 Informal State Violation/Reminder Notice 4237 September 13, 2024 Resolving State Compliance achieved Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 20765 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start April 12, 2024 · period end February 26, 2026 · first reported February 13, 2026 · EPA return-to-compliance field February 26, 2026
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4299 February 9, 2026 Informal State Violation/Reminder Notice 4301 February 26, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 20732 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance period start April 1, 2024 · period end April 30, 2024 · first reported February 24, 2026 · EPA return-to-compliance field April 30, 2024
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4226 August 13, 2024 Informal State Violation/Reminder Notice 4228 August 13, 2024 Resolving State Compliance achieved EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 20725 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start April 1, 2024 · period end June 30, 2024 · first reported February 24, 2026 · EPA return-to-compliance field June 30, 2024
5 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4210 June 26, 2024 Informal State Public Notification received 4189 July 3, 2024 Informal State Violation/Reminder Notice 4190 July 3, 2024 Informal State Public Notification requested 4253 November 8, 2024 Formal State Administrative/Compliance Order without penalty issued 4274 December 17, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 20720 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance period start March 1, 2024 · period end March 31, 2024 · first reported February 24, 2026 · EPA return-to-compliance field March 31, 2024
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4176 April 30, 2024 Informal State Violation/Reminder Notice 4185 June 26, 2024 Resolving State Compliance achieved 4238 September 13, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 20721 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance period start February 1, 2024 · period end February 29, 2024 · first reported February 24, 2026 · EPA return-to-compliance field February 29, 2024
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4179 April 30, 2024 Informal State Violation/Reminder Notice 4185 June 26, 2024 Resolving State Compliance achieved 4238 September 13, 2024 Resolving State Compliance achieved Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 20716 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start January 2, 2024 · period end February 26, 2026 · first reported February 24, 2026 · EPA return-to-compliance field February 26, 2026
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4171 February 16, 2024 Informal State Violation/Reminder Notice 4301 February 26, 2026 Resolving State Compliance achieved EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 20726 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start January 1, 2024 · period end March 31, 2024 · first reported February 24, 2026 · EPA return-to-compliance field March 31, 2024
5 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4209 June 26, 2024 Informal State Public Notification received 4192 July 3, 2024 Informal State Violation/Reminder Notice 4193 July 3, 2024 Informal State Public Notification requested 4253 November 8, 2024 Formal State Administrative/Compliance Order without penalty issued 4274 December 17, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 20719 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance period start January 1, 2024 · period end January 31, 2024 · first reported February 24, 2026 · EPA return-to-compliance field January 31, 2024
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4182 April 30, 2024 Informal State Violation/Reminder Notice 4185 June 26, 2024 Resolving State Compliance achieved 4238 September 13, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring of Treatment (SWTR-Filter)Violation 20712 · Surface Water Treatment Rule · Surface Water Treatment RuleNoncompliance period start November 1, 2023 · period end November 30, 2023 · first reported February 24, 2026 · EPA return-to-compliance field November 30, 2023
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4157 December 26, 2023 Informal State Violation/Reminder Notice 4158 December 26, 2023 Informal State Public Notification requested 4261 February 5, 2024 Resolving State Compliance achieved 4305 February 26, 2026 Informal State Public Notification received EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 20723 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start October 1, 2023 · period end December 31, 2023 · first reported February 24, 2026 · EPA return-to-compliance field December 31, 2023
5 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4211 June 24, 2024 Informal State Public Notification received 4195 July 3, 2024 Informal State Violation/Reminder Notice 4196 July 3, 2024 Informal State Public Notification requested 4253 November 8, 2024 Formal State Administrative/Compliance Order without penalty issued 4274 December 17, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 20718 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start October 1, 2023 · period end December 31, 2023 · first reported February 24, 2026 · EPA return-to-compliance field December 31, 2023
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4216 February 27, 2024 Informal State Violation/Reminder Notice 4218 July 30, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 20717 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start October 1, 2023 · period end December 31, 2023 · first reported February 24, 2026 · EPA return-to-compliance field December 31, 2023
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4216 February 27, 2024 Informal State Violation/Reminder Notice 4218 July 30, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 20714 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance period start October 1, 2023 · period end December 31, 2023 · first reported February 24, 2026 · EPA return-to-compliance field December 31, 2023
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4243 February 16, 2024 Informal State Violation/Reminder Notice 4238 September 13, 2024 Resolving State Compliance achieved Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 20684 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start August 6, 2023 · period end January 8, 2024 · first reported November 15, 2023 · EPA return-to-compliance field January 8, 2024
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4145 September 14, 2023 Informal State Violation/Reminder Notice 4160 January 8, 2024 Resolving State Compliance achieved EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 20727 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start July 1, 2023 · period end September 30, 2023 · first reported February 24, 2026 · EPA return-to-compliance field September 30, 2023
5 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4212 June 24, 2024 Informal State Public Notification received 4198 July 3, 2024 Informal State Violation/Reminder Notice 4199 July 3, 2024 Informal State Public Notification requested 4253 November 8, 2024 Formal State Administrative/Compliance Order without penalty issued 4274 December 17, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 20711 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start July 1, 2023 · period end September 30, 2023 · first reported February 24, 2026 · EPA return-to-compliance field September 30, 2023
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4220 November 14, 2023 Informal State Violation/Reminder Notice 4218 July 30, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 20710 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start July 1, 2023 · period end September 30, 2023 · first reported February 24, 2026 · EPA return-to-compliance field September 30, 2023
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4220 November 14, 2023 Informal State Violation/Reminder Notice 4218 July 30, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 20708 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance period start July 1, 2023 · period end September 30, 2023 · first reported February 24, 2026 · EPA return-to-compliance field September 30, 2023
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4245 November 13, 2023 Informal State Violation/Reminder Notice 4238 September 13, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 20683 · Di(2-ethylhexyl) phthalate · Synthetic Organic ChemicalsNoncompliance period start April 1, 2023 · period end June 30, 2023 · first reported August 14, 2023 · EPA return-to-compliance field June 30, 2023
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4141 August 10, 2023 Informal State Violation/Reminder Notice 4143 August 10, 2023 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 20682 · Styrene · Volatile Organic ChemicalsNoncompliance period start April 1, 2023 · period end June 30, 2023 · first reported August 14, 2023 · EPA return-to-compliance field June 30, 2023
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4139 August 10, 2023 Informal State Violation/Reminder Notice 4143 August 10, 2023 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 20681 · Ethylbenzene · Volatile Organic ChemicalsNoncompliance period start April 1, 2023 · period end June 30, 2023 · first reported August 14, 2023 · EPA return-to-compliance field June 30, 2023
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4139 August 10, 2023 Informal State Violation/Reminder Notice 4143 August 10, 2023 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 20680 · Toluene · Volatile Organic ChemicalsNoncompliance period start April 1, 2023 · period end June 30, 2023 · first reported August 14, 2023 · EPA return-to-compliance field June 30, 2023
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4139 August 10, 2023 Informal State Violation/Reminder Notice 4143 August 10, 2023 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 20679 · Benzene · Volatile Organic ChemicalsNoncompliance period start April 1, 2023 · period end June 30, 2023 · first reported August 14, 2023 · EPA return-to-compliance field June 30, 2023
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4139 August 10, 2023 Informal State Violation/Reminder Notice 4143 August 10, 2023 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 20678 · CHLOROBENZENE · Volatile Organic ChemicalsNoncompliance period start April 1, 2023 · period end June 30, 2023 · first reported August 14, 2023 · EPA return-to-compliance field June 30, 2023
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4139 August 10, 2023 Informal State Violation/Reminder Notice 4143 August 10, 2023 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 20677 · Tetrachloroethylene · Volatile Organic ChemicalsNoncompliance period start April 1, 2023 · period end June 30, 2023 · first reported August 14, 2023 · EPA return-to-compliance field June 30, 2023
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4139 August 10, 2023 Informal State Violation/Reminder Notice 4143 August 10, 2023 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 20676 · 1,1,2-Trichloroethane · Volatile Organic ChemicalsNoncompliance period start April 1, 2023 · period end June 30, 2023 · first reported August 14, 2023 · EPA return-to-compliance field June 30, 2023
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4139 August 10, 2023 Informal State Violation/Reminder Notice 4143 August 10, 2023 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 20675 · Trichloroethylene · Volatile Organic ChemicalsNoncompliance period start April 1, 2023 · period end June 30, 2023 · first reported August 14, 2023 · EPA return-to-compliance field June 30, 2023
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4139 August 10, 2023 Informal State Violation/Reminder Notice 4143 August 10, 2023 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 20674 · 1,2-Dichloropropane · Volatile Organic ChemicalsNoncompliance period start April 1, 2023 · period end June 30, 2023 · first reported August 14, 2023 · EPA return-to-compliance field June 30, 2023
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4139 August 10, 2023 Informal State Violation/Reminder Notice 4143 August 10, 2023 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 20673 · Carbon tetrachloride · Volatile Organic ChemicalsNoncompliance period start April 1, 2023 · period end June 30, 2023 · first reported August 14, 2023 · EPA return-to-compliance field June 30, 2023
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4139 August 10, 2023 Informal State Violation/Reminder Notice 4143 August 10, 2023 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 20672 · 1,1,1-Trichloroethane · Volatile Organic ChemicalsNoncompliance period start April 1, 2023 · period end June 30, 2023 · first reported August 14, 2023 · EPA return-to-compliance field June 30, 2023
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4139 August 10, 2023 Informal State Violation/Reminder Notice 4143 August 10, 2023 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 20671 · 1,2-Dichloroethane · Volatile Organic ChemicalsNoncompliance period start April 1, 2023 · period end June 30, 2023 · first reported August 14, 2023 · EPA return-to-compliance field June 30, 2023
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4139 August 10, 2023 Informal State Violation/Reminder Notice 4143 August 10, 2023 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 20670 · trans-1,2-Dichloroethylene · Volatile Organic ChemicalsNoncompliance period start April 1, 2023 · period end June 30, 2023 · first reported August 14, 2023 · EPA return-to-compliance field June 30, 2023
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4139 August 10, 2023 Informal State Violation/Reminder Notice 4143 August 10, 2023 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 20669 · 1,1-Dichloroethylene · Volatile Organic ChemicalsNoncompliance period start April 1, 2023 · period end June 30, 2023 · first reported August 14, 2023 · EPA return-to-compliance field June 30, 2023
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4139 August 10, 2023 Informal State Violation/Reminder Notice 4143 August 10, 2023 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 20668 · Vinyl chloride · Volatile Organic ChemicalsNoncompliance period start April 1, 2023 · period end June 30, 2023 · first reported August 14, 2023 · EPA return-to-compliance field June 30, 2023
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4139 August 10, 2023 Informal State Violation/Reminder Notice 4143 August 10, 2023 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 20667 · p-Dichlorobenzene · Volatile Organic ChemicalsNoncompliance period start April 1, 2023 · period end June 30, 2023 · first reported August 14, 2023 · EPA return-to-compliance field June 30, 2023
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4139 August 10, 2023 Informal State Violation/Reminder Notice 4143 August 10, 2023 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 20666 · o-Dichlorobenzene · Volatile Organic ChemicalsNoncompliance period start April 1, 2023 · period end June 30, 2023 · first reported August 14, 2023 · EPA return-to-compliance field June 30, 2023
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4139 August 10, 2023 Informal State Violation/Reminder Notice 4143 August 10, 2023 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 20665 · DICHLOROMETHANE · Volatile Organic ChemicalsNoncompliance period start April 1, 2023 · period end June 30, 2023 · first reported August 14, 2023 · EPA return-to-compliance field June 30, 2023
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4139 August 10, 2023 Informal State Violation/Reminder Notice 4143 August 10, 2023 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 20664 · Xylenes, Total · Volatile Organic ChemicalsNoncompliance period start April 1, 2023 · period end June 30, 2023 · first reported August 14, 2023 · EPA return-to-compliance field June 30, 2023
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4139 August 10, 2023 Informal State Violation/Reminder Notice 4143 August 10, 2023 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 20663 · cis-1,2-Dichloroethylene · Volatile Organic ChemicalsNoncompliance period start April 1, 2023 · period end June 30, 2023 · first reported August 14, 2023 · EPA return-to-compliance field June 30, 2023
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4139 August 10, 2023 Informal State Violation/Reminder Notice 4143 August 10, 2023 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 20662 · 1,2,4-Trichlorobenzene · Volatile Organic ChemicalsNoncompliance period start April 1, 2023 · period end June 30, 2023 · first reported February 24, 2026 · EPA return-to-compliance field June 30, 2023
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4139 August 10, 2023 Informal State Violation/Reminder Notice 4143 August 10, 2023 Resolving State Compliance achieved EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 20661 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start April 1, 2023 · period end June 30, 2023 · first reported August 14, 2023 · EPA return-to-compliance field June 30, 2023
5 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4136 July 6, 2023 Informal State Violation/Reminder Notice 4137 July 6, 2023 Informal State Public Notification requested 4161 January 8, 2024 Informal State Public Notification received 4253 November 8, 2024 Formal State Administrative/Compliance Order without penalty issued 4274 December 17, 2024 Resolving State Compliance achieved EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 20660 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start January 1, 2023 · period end March 31, 2023 · first reported May 15, 2023 · EPA return-to-compliance field March 31, 2023
5 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4121 April 7, 2023 Informal State Violation/Reminder Notice 4122 April 7, 2023 Informal State Public Notification requested 4124 April 13, 2023 Informal State Public Notification received 4253 November 8, 2024 Formal State Administrative/Compliance Order without penalty issued 4274 December 17, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Failure Submit IDSE/Subpart V Plan RptViolation 20659 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start December 13, 2022 · period end June 27, 2023 · first reported May 15, 2023 · EPA return-to-compliance field June 27, 2023
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4118 February 16, 2023 Informal State Violation/Reminder Notice 4119 February 16, 2023 Informal State Public Notification requested 4135 June 27, 2023 Resolving State Compliance achieved 4303 February 26, 2026 Informal State Public Notification received Monitoring or reporting · Resolved
Monitoring, RegularViolation 20658 · Di(2-ethylhexyl) phthalate · Synthetic Organic ChemicalsNoncompliance period start October 1, 2022 · period end December 31, 2022 · first reported May 15, 2023 · EPA return-to-compliance field December 31, 2022
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4115 February 14, 2023 Informal State Violation/Reminder Notice 4116 February 14, 2023 Informal State Public Notification requested 4219 July 31, 2024 Resolving State Compliance achieved 4302 February 26, 2026 Informal State Public Notification received Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 20657 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start October 1, 2022 · period end December 31, 2022 · first reported February 15, 2023 · EPA return-to-compliance field December 31, 2022
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4112 February 13, 2023 Informal State Violation/Reminder Notice 4125 April 17, 2023 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 20656 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start October 1, 2022 · period end December 31, 2022 · first reported February 15, 2023 · EPA return-to-compliance field December 31, 2022
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4112 February 13, 2023 Informal State Violation/Reminder Notice 4125 April 17, 2023 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 20653 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance period start October 1, 2022 · period end December 31, 2022 · first reported February 15, 2023 · EPA return-to-compliance field December 31, 2022
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4109 February 13, 2023 Informal State Violation/Reminder Notice 4111 February 13, 2023 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 20651 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start July 1, 2022 · period end September 30, 2022 · first reported December 29, 2022 · EPA return-to-compliance field September 30, 2022
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4096 November 21, 2022 Informal State Violation/Reminder Notice 4098 November 21, 2022 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 20650 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start July 1, 2022 · period end September 30, 2022 · first reported December 29, 2022 · EPA return-to-compliance field September 30, 2022
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4096 November 21, 2022 Informal State Violation/Reminder Notice 4098 November 21, 2022 Resolving State Compliance achieved EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 20649 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start July 1, 2022 · period end September 30, 2022 · first reported November 16, 2022 · EPA return-to-compliance field September 30, 2022
5 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4095 October 20, 2022 Informal State Public Notification received 4092 October 28, 2022 Informal State Violation/Reminder Notice 4093 October 28, 2022 Informal State Public Notification requested 4253 November 8, 2024 Formal State Administrative/Compliance Order without penalty issued 4274 December 17, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Report Sample Result/Fail Monitor (RTCR)Violation 20642 · Revised Total Coliform Rule · Revised Total Coliform RuleNoncompliance period start May 1, 2022 · period end July 5, 2022 · first reported August 15, 2022 · EPA return-to-compliance field July 5, 2022
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4074 June 23, 2022 Informal State Violation/Reminder Notice 4077 July 5, 2022 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 20646 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance period start April 1, 2022 · period end June 30, 2022 · first reported August 15, 2022 · EPA return-to-compliance field June 30, 2022
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4129 August 8, 2022 Informal State Violation/Reminder Notice 4126 June 29, 2023 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 20645 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start April 1, 2022 · period end June 30, 2022 · first reported August 15, 2022 · EPA return-to-compliance field June 30, 2022
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4082 August 2, 2022 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 20644 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start April 1, 2022 · period end June 30, 2022 · first reported August 15, 2022 · EPA return-to-compliance field June 30, 2022
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4082 August 2, 2022 Resolving State Compliance achieved Monitoring or reporting · Resolved
Report Sample Result/Fail Monitor (RTCR)Violation 20638 · Revised Total Coliform Rule · Revised Total Coliform RuleNoncompliance period start March 1, 2022 · period end May 16, 2022 · first reported May 16, 2022 · EPA return-to-compliance field May 16, 2022
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4063 April 26, 2022 Informal State Violation/Reminder Notice 4066 May 16, 2022 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 20639 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance period start January 1, 2022 · period end March 31, 2022 · first reported August 15, 2022 · EPA return-to-compliance field March 31, 2022
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4067 May 20, 2022 Informal State Violation/Reminder Notice 4073 May 20, 2022 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, Turbidity (Enhanced SWTR)Violation 20637 · Interim Enhanced Surface Water Treatment Rule · Interim and Long Term 1 Enhanced Surface Water Treatment RuleNoncompliance period start October 1, 2021 · period end October 31, 2021 · first reported February 16, 2022 · EPA return-to-compliance field October 31, 2021
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4061 December 8, 2021 Informal State Violation/Reminder Notice 4058 December 9, 2021 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring of Treatment (SWTR-Filter)Violation 20635 · Surface Water Treatment Rule · Surface Water Treatment RuleNoncompliance period start October 1, 2021 · period end October 31, 2021 · first reported February 16, 2022 · EPA return-to-compliance field October 31, 2021
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4059 December 8, 2021 Informal State Violation/Reminder Notice 4058 December 9, 2021 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 20634 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance period start April 1, 2021 · period end June 30, 2021 · first reported November 10, 2021 · EPA return-to-compliance field June 30, 2021
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4047 August 16, 2021 Informal State Violation/Reminder Notice 4046 August 30, 2021 Resolving State Compliance achieved EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 20630 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start April 1, 2021 · period end June 30, 2021 · first reported August 12, 2021 · EPA return-to-compliance field June 30, 2021
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4030 February 18, 2021 Formal State Administrative/Compliance Order without penalty issued 4034 June 29, 2021 Informal State Violation/Reminder Notice 4035 June 29, 2021 Informal State Public Notification requested 4045 September 20, 2021 Resolving State Compliance achieved EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 20629 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start January 1, 2021 · period end March 31, 2021 · first reported March 31, 2021 · EPA return-to-compliance field March 31, 2021
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4026 March 30, 2021 Informal State Violation/Reminder Notice 4027 March 30, 2021 Informal State Public Notification requested 4031 June 28, 2021 Resolving State Compliance achieved EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 20627 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start January 1, 2021 · period end March 31, 2021 · first reported March 31, 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 4030 February 18, 2021 Formal State Administrative/Compliance Order without penalty issued 4022 March 30, 2021 Informal State Violation/Reminder Notice 4023 March 30, 2021 Informal State Public Notification requested 4045 September 20, 2021 Resolving State Compliance achieved EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 20625 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start October 1, 2020 · period end December 31, 2020 · first reported February 12, 2021 · EPA return-to-compliance field December 31, 2020
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4010 January 5, 2021 Informal State Violation/Reminder Notice 4011 January 5, 2021 Informal State Public Notification requested 4030 February 18, 2021 Formal State Administrative/Compliance Order without penalty issued 4045 September 20, 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.
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