AZ0411131 · Arizona

GW SANTA CRUZ WATER CO

Federal fiscal 2026Q3 · EPA violation and follow-up records

Violation records shown: 71
EPA health-based flag: 1
Health-based records unresolved in this snapshot: 0
Monitoring and reporting records: 70

Counties listed by EPA · Pinal 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 71 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 1,094 days. The interval uses the reporting periods and dates on file.

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 1445 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start November 1, 2025 · period end November 30, 2025 · first reported February 24, 2026 · EPA return-to-compliance field November 30, 2025

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
241	January 14, 2026	Informal	State Violation/Reminder Notice
242	January 14, 2026	Informal	State Public Notification requested
244	April 9, 2026	Resolving	State Compliance achieved
250	June 25, 2026	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, Routine (RTCR)Violation 1444 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start November 1, 2025 · period end November 30, 2025 · first reported February 13, 2026 · EPA return-to-compliance field November 30, 2025

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
234	December 11, 2025	Informal	State Violation/Reminder Notice
235	December 11, 2025	Informal	State Public Notification requested
237	January 6, 2026	Resolving	State Compliance achieved
249	June 25, 2026	Informal	State Public Notification received

EPA health-based flag · Resolved

Maximum Contaminant Level Violation, E. coli (RTCR)Violation 1442 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start August 1, 2025 · period end August 31, 2025 · first reported November 17, 2025 · EPA return-to-compliance field August 31, 2025

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
230	September 5, 2025	Informal	State Public Notification received
227	September 9, 2025	Informal	State Violation/Reminder Notice
228	September 9, 2025	Informal	State Public Notification requested
226	September 24, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 1436 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts Rule
Noncompliance period start April 1, 2024 · period end June 30, 2024 · first reported February 24, 2026 · EPA return-to-compliance field June 30, 2024

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
194 August 8, 2024 Informal State Violation/Reminder Notice
197 August 8, 2024 Resolving State Compliance achieved
Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 1435 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts Rule
Noncompliance period start April 1, 2024 · period end June 30, 2024 · first reported February 24, 2026 · EPA return-to-compliance field June 30, 2024

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
194 August 8, 2024 Informal State Violation/Reminder Notice
197 August 8, 2024 Resolving State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
194	August 8, 2024	Informal	State Violation/Reminder Notice
197	August 8, 2024	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
194	August 8, 2024	Informal	State Violation/Reminder Notice
197	August 8, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 1366 · Radium-228 · Radionuclides and Revised Rad Rule

Noncompliance period start October 1, 2023 · period end December 31, 2023 · first reported February 24, 2026 · EPA return-to-compliance field December 31, 2023

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
172	February 9, 2024	Informal	State Violation/Reminder Notice
173	February 9, 2024	Informal	State Public Notification requested
175	March 20, 2024	Resolving	State no longer subject to Rule
178	June 28, 2024	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, RegularViolation 1365 · Radium-226 · Radionuclides and Revised Rad Rule

Noncompliance period start October 1, 2023 · period end December 31, 2023 · first reported February 24, 2026 · EPA return-to-compliance field December 31, 2023

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
172	February 9, 2024	Informal	State Violation/Reminder Notice
173	February 9, 2024	Informal	State Public Notification requested
175	March 20, 2024	Resolving	State no longer subject to Rule
178	June 28, 2024	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, RegularViolation 1364 · Combined Radium (-226 and -228) · Radionuclides and Revised Rad Rule

Noncompliance period start October 1, 2023 · period end December 31, 2023 · first reported February 24, 2026 · EPA return-to-compliance field December 31, 2023

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
172	February 9, 2024	Informal	State Violation/Reminder Notice
173	February 9, 2024	Informal	State Public Notification requested
175	March 20, 2024	Resolving	State no longer subject to Rule
178	June 28, 2024	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, RegularViolation 1363 · Combined Uranium · Radionuclides and Revised Rad Rule

Noncompliance period start October 1, 2023 · period end December 31, 2023 · first reported February 24, 2026 · EPA return-to-compliance field December 31, 2023

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
172	February 9, 2024	Informal	State Violation/Reminder Notice
173	February 9, 2024	Informal	State Public Notification requested
175	March 20, 2024	Resolving	State no longer subject to Rule
178	June 28, 2024	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, RegularViolation 1362 · Gross Alpha, Excl. Radon and U · Radionuclides and Revised Rad Rule

Noncompliance period start October 1, 2023 · period end December 31, 2023 · first reported February 24, 2026 · EPA return-to-compliance field December 31, 2023

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
172	February 9, 2024	Informal	State Violation/Reminder Notice
173	February 9, 2024	Informal	State Public Notification requested
175	March 20, 2024	Resolving	State no longer subject to Rule
178	June 28, 2024	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, Routine (RTCR)Violation 1357 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start September 1, 2023 · period end September 30, 2023 · first reported February 24, 2026 · EPA return-to-compliance field September 30, 2023

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
159	October 25, 2023	Informal	State Violation/Reminder Notice
160	October 25, 2023	Informal	State Public Notification requested
171	November 8, 2023	Resolving	State Compliance achieved

Monitoring or reporting · Resolved
Monitoring, RegularViolation 1361 · Radium-226 · Radionuclides and Revised Rad Rule
Noncompliance 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
169 November 1, 2023 Informal State Violation/Reminder Notice
171 November 8, 2023 Resolving State Compliance achieved
Monitoring or reporting · Resolved
Monitoring, RegularViolation 1360 · Combined Radium (-226 and -228) · Radionuclides and Revised Rad Rule
Noncompliance 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
167 November 1, 2023 Informal State Violation/Reminder Notice
171 November 8, 2023 Resolving State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
169	November 1, 2023	Informal	State Violation/Reminder Notice
171	November 8, 2023	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
167	November 1, 2023	Informal	State Violation/Reminder Notice
171	November 8, 2023	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 1359 · Gross Alpha, Excl. Radon and U · Radionuclides and Revised Rad Rule

Noncompliance period start July 1, 2023 · period end September 30, 2023 · first reported February 24, 2026 · EPA return-to-compliance field September 30, 2023

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
162	November 1, 2023	Informal	State Violation/Reminder Notice
163	November 1, 2023	Informal	State Public Notification requested
171	November 8, 2023	Resolving	State Compliance achieved

Monitoring or reporting · Resolved
Monitoring, RegularViolation 1358 · Radium-228 · Radionuclides and Revised Rad Rule
Noncompliance 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
165 November 1, 2023 Informal State Violation/Reminder Notice
171 November 8, 2023 Resolving State Compliance achieved
Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 1354 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts Rule
Noncompliance period start March 1, 2021 · period end May 31, 2021 · first reported November 10, 2021 · EPA return-to-compliance field May 31, 2021

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
152 August 12, 2021 Resolving State Compliance achieved
149 August 18, 2021 Informal State Violation/Reminder Notice
Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 1353 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts Rule
Noncompliance period start March 1, 2021 · period end May 31, 2021 · first reported November 10, 2021 · EPA return-to-compliance field May 31, 2021

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
152 August 12, 2021 Resolving State Compliance achieved
149 August 18, 2021 Informal State Violation/Reminder Notice

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
165	November 1, 2023	Informal	State Violation/Reminder Notice
171	November 8, 2023	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
152	August 12, 2021	Resolving	State Compliance achieved
149	August 18, 2021	Informal	State Violation/Reminder Notice

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
152	August 12, 2021	Resolving	State Compliance achieved
149	August 18, 2021	Informal	State Violation/Reminder Notice

Monitoring or reporting · Resolved

Monitoring, RegularViolation 1429 · Selenium · Inorganic Chemicals

Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported August 14, 2024 · EPA return-to-compliance field December 31, 2023

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
188	July 18, 2024	Informal	State Violation/Reminder Notice
189	July 18, 2024	Informal	State Public Notification requested
203	September 9, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 1428 · Thallium, Total · Inorganic Chemicals

Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported August 14, 2024 · EPA return-to-compliance field December 31, 2023

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
188	July 18, 2024	Informal	State Violation/Reminder Notice
189	July 18, 2024	Informal	State Public Notification requested
203	September 9, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 1427 · Beryllium, Total · Inorganic Chemicals

Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported August 14, 2024 · EPA return-to-compliance field December 31, 2023

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
188	July 18, 2024	Informal	State Violation/Reminder Notice
189	July 18, 2024	Informal	State Public Notification requested
203	September 9, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 1426 · Antimony, Total · Inorganic Chemicals

Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported August 14, 2024 · EPA return-to-compliance field December 31, 2023

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
188	July 18, 2024	Informal	State Violation/Reminder Notice
189	July 18, 2024	Informal	State Public Notification requested
203	September 9, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 1424 · Nickel · Inorganic Chemicals

Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported August 14, 2024 · EPA return-to-compliance field December 31, 2023

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
188	July 18, 2024	Informal	State Violation/Reminder Notice
189	July 18, 2024	Informal	State Public Notification requested
203	September 9, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 1423 · Mercury · Inorganic Chemicals

Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported August 14, 2024 · EPA return-to-compliance field December 31, 2023

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
188	July 18, 2024	Informal	State Violation/Reminder Notice
189	July 18, 2024	Informal	State Public Notification requested
203	September 9, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 1422 · Fluoride · Inorganic Chemicals

Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported August 14, 2024 · EPA return-to-compliance field December 31, 2023

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
188	July 18, 2024	Informal	State Violation/Reminder Notice
189	July 18, 2024	Informal	State Public Notification requested
203	September 9, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 1421 · CYANIDE · Inorganic Chemicals

Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported August 14, 2024 · EPA return-to-compliance field December 31, 2023

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
188	July 18, 2024	Informal	State Violation/Reminder Notice
189	July 18, 2024	Informal	State Public Notification requested
203	September 9, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 1420 · Chromium · Inorganic Chemicals

Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported August 14, 2024 · EPA return-to-compliance field December 31, 2023

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
188	July 18, 2024	Informal	State Violation/Reminder Notice
189	July 18, 2024	Informal	State Public Notification requested
203	September 9, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 1419 · Cadmium · Inorganic Chemicals

Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported August 14, 2024 · EPA return-to-compliance field December 31, 2023

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
188	July 18, 2024	Informal	State Violation/Reminder Notice
189	July 18, 2024	Informal	State Public Notification requested
203	September 9, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 1418 · Barium · Inorganic Chemicals

Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported August 14, 2024 · EPA return-to-compliance field December 31, 2023

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
188	July 18, 2024	Informal	State Violation/Reminder Notice
189	July 18, 2024	Informal	State Public Notification requested
203	September 9, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 1417 · Arsenic · Arsenic Rule

Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported August 14, 2024 · EPA return-to-compliance field December 31, 2023

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
188	July 18, 2024	Informal	State Violation/Reminder Notice
189	July 18, 2024	Informal	State Public Notification requested
203	September 9, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 1416 · Chlordane · Synthetic Organic Chemicals

Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported August 14, 2024 · EPA return-to-compliance field December 31, 2023

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
185	July 18, 2024	Informal	State Violation/Reminder Notice
186	July 18, 2024	Informal	State Public Notification requested
204	September 10, 2024	Resolving	State Compliance achieved
248	September 22, 2025	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, RegularViolation 1415 · ETHYLENE DIBROMIDE · Synthetic Organic Chemicals

Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported August 14, 2024 · EPA return-to-compliance field December 31, 2023

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
185	July 18, 2024	Informal	State Violation/Reminder Notice
186	July 18, 2024	Informal	State Public Notification requested
204	September 10, 2024	Resolving	State Compliance achieved
248	September 22, 2025	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, RegularViolation 1414 · 1,2-DIBROMO-3-CHLOROPROPANE · Synthetic Organic Chemicals

Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported August 14, 2024 · EPA return-to-compliance field December 31, 2023

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
185	July 18, 2024	Informal	State Violation/Reminder Notice
186	July 18, 2024	Informal	State Public Notification requested
204	September 10, 2024	Resolving	State Compliance achieved
248	September 22, 2025	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, RegularViolation 1406 · Pentachlorophenol · Synthetic Organic Chemicals

Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported August 14, 2024 · EPA return-to-compliance field December 31, 2023

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
185	July 18, 2024	Informal	State Violation/Reminder Notice
186	July 18, 2024	Informal	State Public Notification requested
204	September 10, 2024	Resolving	State Compliance achieved
248	September 22, 2025	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, RegularViolation 1405 · Benzo(a)pyrene · Synthetic Organic Chemicals

Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported August 14, 2024 · EPA return-to-compliance field December 31, 2023

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
185	July 18, 2024	Informal	State Violation/Reminder Notice
186	July 18, 2024	Informal	State Public Notification requested
204	September 10, 2024	Resolving	State Compliance achieved
248	September 22, 2025	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, RegularViolation 1404 · HEXACHLOROBENZENE · Synthetic Organic Chemicals

Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported August 14, 2024 · EPA return-to-compliance field December 31, 2023

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
185	July 18, 2024	Informal	State Violation/Reminder Notice
186	July 18, 2024	Informal	State Public Notification requested
204	September 10, 2024	Resolving	State Compliance achieved
248	September 22, 2025	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, RegularViolation 1403 · 2,4,5-TP · Synthetic Organic Chemicals

Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported August 14, 2024 · EPA return-to-compliance field December 31, 2023

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
185	July 18, 2024	Informal	State Violation/Reminder Notice
186	July 18, 2024	Informal	State Public Notification requested
204	September 10, 2024	Resolving	State Compliance achieved
248	September 22, 2025	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, RegularViolation 1402 · 2,4-D · Synthetic Organic Chemicals

Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported August 14, 2024 · EPA return-to-compliance field December 31, 2023

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
185	July 18, 2024	Informal	State Violation/Reminder Notice
186	July 18, 2024	Informal	State Public Notification requested
204	September 10, 2024	Resolving	State Compliance achieved
248	September 22, 2025	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, RegularViolation 1401 · Heptachlor epoxide · Synthetic Organic Chemicals

Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported August 14, 2024 · EPA return-to-compliance field December 31, 2023

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
185	July 18, 2024	Informal	State Violation/Reminder Notice
186	July 18, 2024	Informal	State Public Notification requested
204	September 10, 2024	Resolving	State Compliance achieved
248	September 22, 2025	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, RegularViolation 1400 · Heptachlor · Synthetic Organic Chemicals

Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported August 14, 2024 · EPA return-to-compliance field December 31, 2023

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
185	July 18, 2024	Informal	State Violation/Reminder Notice
186	July 18, 2024	Informal	State Public Notification requested
204	September 10, 2024	Resolving	State Compliance achieved
248	September 22, 2025	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, RegularViolation 1399 · 2,3,7,8-TCDD · Synthetic Organic Chemicals

Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported August 14, 2024 · EPA return-to-compliance field December 31, 2023

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
185	July 18, 2024	Informal	State Violation/Reminder Notice
186	July 18, 2024	Informal	State Public Notification requested
204	September 10, 2024	Resolving	State Compliance achieved
248	September 22, 2025	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, RegularViolation 1398 · LASSO · Synthetic Organic Chemicals

Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported August 14, 2024 · EPA return-to-compliance field December 31, 2023

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
185	July 18, 2024	Informal	State Violation/Reminder Notice
186	July 18, 2024	Informal	State Public Notification requested
204	September 10, 2024	Resolving	State Compliance achieved
248	September 22, 2025	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, RegularViolation 1397 · Atrazine · Synthetic Organic Chemicals

Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported August 14, 2024 · EPA return-to-compliance field December 31, 2023

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
185	July 18, 2024	Informal	State Violation/Reminder Notice
186	July 18, 2024	Informal	State Public Notification requested
204	September 10, 2024	Resolving	State Compliance achieved
248	September 22, 2025	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, RegularViolation 1396 · Carbofuran · Synthetic Organic Chemicals

Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported August 14, 2024 · EPA return-to-compliance field December 31, 2023

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
185	July 18, 2024	Informal	State Violation/Reminder Notice
186	July 18, 2024	Informal	State Public Notification requested
204	September 10, 2024	Resolving	State Compliance achieved
248	September 22, 2025	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, RegularViolation 1395 · Hexachlorocyclopentadiene · Synthetic Organic Chemicals

Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported August 14, 2024 · EPA return-to-compliance field December 31, 2023

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
185	July 18, 2024	Informal	State Violation/Reminder Notice
186	July 18, 2024	Informal	State Public Notification requested
204	September 10, 2024	Resolving	State Compliance achieved
248	September 22, 2025	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, RegularViolation 1394 · Dinoseb · Synthetic Organic Chemicals

Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported August 14, 2024 · EPA return-to-compliance field December 31, 2023

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
185	July 18, 2024	Informal	State Violation/Reminder Notice
186	July 18, 2024	Informal	State Public Notification requested
204	September 10, 2024	Resolving	State Compliance achieved
248	September 22, 2025	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, RegularViolation 1393 · Picloram · Synthetic Organic Chemicals

Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported August 14, 2024 · EPA return-to-compliance field December 31, 2023

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
185	July 18, 2024	Informal	State Violation/Reminder Notice
186	July 18, 2024	Informal	State Public Notification requested
204	September 10, 2024	Resolving	State Compliance achieved
248	September 22, 2025	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, RegularViolation 1392 · Di(2-ethylhexyl) phthalate · Synthetic Organic Chemicals

Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported August 14, 2024 · EPA return-to-compliance field December 31, 2023

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
185	July 18, 2024	Informal	State Violation/Reminder Notice
186	July 18, 2024	Informal	State Public Notification requested
204	September 10, 2024	Resolving	State Compliance achieved
248	September 22, 2025	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, RegularViolation 1391 · Simazine · Synthetic Organic Chemicals

Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported August 14, 2024 · EPA return-to-compliance field December 31, 2023

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
185	July 18, 2024	Informal	State Violation/Reminder Notice
186	July 18, 2024	Informal	State Public Notification requested
204	September 10, 2024	Resolving	State Compliance achieved
248	September 22, 2025	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, RegularViolation 1390 · OXAMYL · Synthetic Organic Chemicals

Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported August 14, 2024 · EPA return-to-compliance field December 31, 2023

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
185	July 18, 2024	Informal	State Violation/Reminder Notice
186	July 18, 2024	Informal	State Public Notification requested
204	September 10, 2024	Resolving	State Compliance achieved
248	September 22, 2025	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, RegularViolation 1389 · Di(2-ethylhexyl) adipate · Synthetic Organic Chemicals

Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported August 14, 2024 · EPA return-to-compliance field December 31, 2023

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
185	July 18, 2024	Informal	State Violation/Reminder Notice
186	July 18, 2024	Informal	State Public Notification requested
204	September 10, 2024	Resolving	State Compliance achieved
248	September 22, 2025	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, RegularViolation 1388 · Glyphosate · Synthetic Organic Chemicals

Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported August 14, 2024 · EPA return-to-compliance field December 31, 2023

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
185	July 18, 2024	Informal	State Violation/Reminder Notice
186	July 18, 2024	Informal	State Public Notification requested
204	September 10, 2024	Resolving	State Compliance achieved
248	September 22, 2025	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, RegularViolation 1387 · Endothall · Synthetic Organic Chemicals

Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported August 14, 2024 · EPA return-to-compliance field December 31, 2023

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
185	July 18, 2024	Informal	State Violation/Reminder Notice
186	July 18, 2024	Informal	State Public Notification requested
204	September 10, 2024	Resolving	State Compliance achieved
248	September 22, 2025	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, RegularViolation 1386 · Diquat · Synthetic Organic Chemicals

Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported August 14, 2024 · EPA return-to-compliance field December 31, 2023

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
185	July 18, 2024	Informal	State Violation/Reminder Notice
186	July 18, 2024	Informal	State Public Notification requested
204	September 10, 2024	Resolving	State Compliance achieved
248	September 22, 2025	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, RegularViolation 1385 · Dalapon · Synthetic Organic Chemicals

Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported August 14, 2024 · EPA return-to-compliance field December 31, 2023

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
185	July 18, 2024	Informal	State Violation/Reminder Notice
186	July 18, 2024	Informal	State Public Notification requested
204	September 10, 2024	Resolving	State Compliance achieved
248	September 22, 2025	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, RegularViolation 1384 · Toxaphene · Synthetic Organic Chemicals

Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported August 14, 2024 · EPA return-to-compliance field December 31, 2023

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
185	July 18, 2024	Informal	State Violation/Reminder Notice
186	July 18, 2024	Informal	State Public Notification requested
204	September 10, 2024	Resolving	State Compliance achieved
248	September 22, 2025	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, RegularViolation 1383 · Methoxychlor · Synthetic Organic Chemicals

Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported August 14, 2024 · EPA return-to-compliance field December 31, 2023

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
185	July 18, 2024	Informal	State Violation/Reminder Notice
186	July 18, 2024	Informal	State Public Notification requested
204	September 10, 2024	Resolving	State Compliance achieved
248	September 22, 2025	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, RegularViolation 1382 · BHC-GAMMA · Synthetic Organic Chemicals

Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported August 14, 2024 · EPA return-to-compliance field December 31, 2023

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
185	July 18, 2024	Informal	State Violation/Reminder Notice
186	July 18, 2024	Informal	State Public Notification requested
204	September 10, 2024	Resolving	State Compliance achieved
248	September 22, 2025	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, RegularViolation 1381 · Endrin · Synthetic Organic Chemicals

Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported August 14, 2024 · EPA return-to-compliance field December 31, 2023

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
185	July 18, 2024	Informal	State Violation/Reminder Notice
186	July 18, 2024	Informal	State Public Notification requested
204	September 10, 2024	Resolving	State Compliance achieved
248	September 22, 2025	Informal	State Public Notification received

Monitoring or reporting · Resolved
Monitoring, RegularViolation 1379 · Selenium · Inorganic Chemicals
Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported August 14, 2024 · 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
179 July 18, 2024 Informal State Violation/Reminder Notice
203 September 9, 2024 Resolving State Compliance achieved
Monitoring or reporting · Resolved
Monitoring, RegularViolation 1378 · Thallium, Total · Inorganic Chemicals
Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported August 14, 2024 · 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
179 July 18, 2024 Informal State Violation/Reminder Notice
203 September 9, 2024 Resolving State Compliance achieved
Monitoring or reporting · Resolved
Monitoring, RegularViolation 1377 · Beryllium, Total · Inorganic Chemicals
Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported August 14, 2024 · 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
179 July 18, 2024 Informal State Violation/Reminder Notice
203 September 9, 2024 Resolving State Compliance achieved
Monitoring or reporting · Resolved
Monitoring, RegularViolation 1376 · Antimony, Total · Inorganic Chemicals
Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported August 14, 2024 · 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
179 July 18, 2024 Informal State Violation/Reminder Notice
203 September 9, 2024 Resolving State Compliance achieved
Monitoring or reporting · Resolved
Monitoring, RegularViolation 1374 · Nickel · Inorganic Chemicals
Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported August 14, 2024 · 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
179 July 18, 2024 Informal State Violation/Reminder Notice
203 September 9, 2024 Resolving State Compliance achieved
Monitoring or reporting · Resolved
Monitoring, RegularViolation 1373 · Mercury · Inorganic Chemicals
Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported August 14, 2024 · 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
179 July 18, 2024 Informal State Violation/Reminder Notice
203 September 9, 2024 Resolving State Compliance achieved
Monitoring or reporting · Resolved
Monitoring, RegularViolation 1372 · Fluoride · Inorganic Chemicals
Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported August 14, 2024 · 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
179 July 18, 2024 Informal State Violation/Reminder Notice
203 September 9, 2024 Resolving State Compliance achieved
Monitoring or reporting · Resolved
Monitoring, RegularViolation 1371 · CYANIDE · Inorganic Chemicals
Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported August 14, 2024 · 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
179 July 18, 2024 Informal State Violation/Reminder Notice
203 September 9, 2024 Resolving State Compliance achieved
Monitoring or reporting · Resolved
Monitoring, RegularViolation 1370 · Chromium · Inorganic Chemicals
Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported August 14, 2024 · 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
179 July 18, 2024 Informal State Violation/Reminder Notice
203 September 9, 2024 Resolving State Compliance achieved
Monitoring or reporting · Resolved
Monitoring, RegularViolation 1369 · Cadmium · Inorganic Chemicals
Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported August 14, 2024 · 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
179 July 18, 2024 Informal State Violation/Reminder Notice
203 September 9, 2024 Resolving State Compliance achieved
Monitoring or reporting · Resolved
Monitoring, RegularViolation 1368 · Barium · Inorganic Chemicals
Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported August 14, 2024 · 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
179 July 18, 2024 Informal State Violation/Reminder Notice
203 September 9, 2024 Resolving State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 1367 · Arsenic · Arsenic Rule

Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported August 14, 2024 · EPA return-to-compliance field December 31, 2023

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
179	July 18, 2024	Informal	State Violation/Reminder Notice
180	July 18, 2024	Informal	State Public Notification requested
203	September 9, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 1380 · Gross Alpha, Excl. Radon and U · Radionuclides and Revised Rad Rule

Noncompliance period start January 1, 2020 · period end December 31, 2022 · first reported August 14, 2024 · EPA return-to-compliance field December 31, 2022

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
182	July 18, 2024	Informal	State Violation/Reminder Notice
183	July 18, 2024	Informal	State Public Notification requested
214	December 9, 2024	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