105300021 · Washington

MCCOY LAKE

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

Violation records shown: 39
EPA health-based flag: 7
Health-based records unresolved in this snapshot: 5
Monitoring and reporting records: 30

Find the utility’s annual water quality report. For current advisories, check the utility or local drinking-water authority.

Violations and what followed

Among 33 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 2,191 days. The interval uses the reporting periods and dates on file.

EPA health-based flag · Unaddressed by formal action
Failure To Address DeficiencyViolation 235 · Groundwater Rule · Ground Water Rule
Noncompliance period start January 5, 2025 · first reported February 18, 2026
No linked action row appears in the records shown.
EPA health-based flag · Unaddressed by formal action
Failure To Address DeficiencyViolation 234 · Groundwater Rule · Ground Water Rule
Noncompliance period start January 5, 2025 · first reported February 18, 2026
No linked action row appears in the records shown.
EPA health-based flag · Unaddressed by formal action
Failure To Address DeficiencyViolation 233 · Groundwater Rule · Ground Water Rule
Noncompliance period start January 5, 2025 · first reported February 18, 2026
No linked action row appears in the records shown.
EPA health-based flag · Unaddressed by formal action
Failure To Address DeficiencyViolation 232 · Groundwater Rule · Ground Water Rule
Noncompliance period start January 5, 2025 · first reported February 18, 2026
No linked action row appears in the records shown.
EPA health-based flag · Unaddressed by formal action
LSL InventoryViolation 237 · LEAD AND COPPER RULE REVISIONS · Lead and Copper Rule Revisions
Noncompliance period start October 17, 2024 · first reported February 18, 2026

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
123 September 20, 2025 Informal Federal Public Notification received from PWS
Monitoring or reporting · Archived
Monitoring, Routine (RTCR)Violation 240 · Revised Total Coliform Rule · Revised Total Coliform Rule
Noncompliance period start November 1, 2025 · period end November 30, 2025 · first reported February 18, 2026 · EPA return-to-compliance field November 30, 2025
No linked action row appears in the records shown.
Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 238 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start April 3, 2025 · period end July 30, 2025 · first reported February 18, 2026 · EPA return-to-compliance field July 30, 2025

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
113 July 30, 2025 Resolving Federal Compliance achieved
Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 239 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start March 9, 2025 · period end July 30, 2025 · first reported February 18, 2026 · EPA return-to-compliance field July 30, 2025

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
115 July 30, 2025 Resolving Federal Compliance achieved
EPA health-based flag · Resolved
Failure To Address DeficiencyViolation 236 · Groundwater Rule · Ground Water Rule
Noncompliance period start January 5, 2025 · period end July 28, 2025 · first reported February 18, 2026 · EPA return-to-compliance field July 28, 2025

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
112 July 28, 2025 Resolving Federal Compliance achieved
Monitoring or reporting · Resolved
Report Sample Result/Fail Monitor (RTCR)Violation 226 · Revised Total Coliform Rule · Revised Total Coliform Rule
Noncompliance period start April 1, 2023 · period end May 19, 2023 · first reported February 18, 2026 · EPA return-to-compliance field May 19, 2023

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
100 May 19, 2023 Resolving Federal Compliance achieved
Monitoring or reporting · Resolved
Monitoring, RegularViolation 262 · Combined Radium (-226 and -228) · Radionuclides and Revised Rad Rule
Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported February 18, 2026 · EPA return-to-compliance field December 31, 2025

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
128 February 24, 2026 Resolving Federal Compliance achieved
Monitoring or reporting · Resolved
Monitoring, Routine (RTCR)Violation 219 · Revised Total Coliform Rule · Revised Total Coliform Rule
Noncompliance period start June 1, 2022 · period end June 30, 2022 · first reported September 28, 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
97 July 22, 2022 Resolving Federal Compliance achieved
Monitoring or reporting · Resolved
Report Sample Result/Fail Monitor (RTCR)Violation 218 · Revised Total Coliform Rule · Revised Total Coliform Rule
Noncompliance period start May 1, 2022 · period end June 14, 2022 · first reported September 28, 2022 · EPA return-to-compliance field June 14, 2022

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
96 June 14, 2022 Resolving Federal Compliance achieved
Monitoring or reporting · Resolved
Monitoring, RegularViolation 261 · Styrene · Volatile Organic Chemicals
Noncompliance period start January 1, 2020 · period end December 31, 2025 · first reported February 18, 2026 · EPA return-to-compliance field December 31, 2025

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
129 March 31, 2026 Resolving Federal Compliance achieved
Monitoring or reporting · Resolved
Monitoring, RegularViolation 260 · Ethylbenzene · Volatile Organic Chemicals
Noncompliance period start January 1, 2020 · period end December 31, 2025 · first reported February 18, 2026 · EPA return-to-compliance field December 31, 2025

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
129 March 31, 2026 Resolving Federal Compliance achieved
Monitoring or reporting · Resolved
Monitoring, RegularViolation 259 · Toluene · Volatile Organic Chemicals
Noncompliance period start January 1, 2020 · period end December 31, 2025 · first reported February 18, 2026 · EPA return-to-compliance field December 31, 2025

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
129 March 31, 2026 Resolving Federal Compliance achieved
Monitoring or reporting · Resolved
Monitoring, RegularViolation 258 · Benzene · Volatile Organic Chemicals
Noncompliance period start January 1, 2020 · period end December 31, 2025 · first reported February 18, 2026 · EPA return-to-compliance field December 31, 2025

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
129 March 31, 2026 Resolving Federal Compliance achieved
Monitoring or reporting · Resolved
Monitoring, RegularViolation 257 · CHLOROBENZENE · Volatile Organic Chemicals
Noncompliance period start January 1, 2020 · period end December 31, 2025 · first reported February 18, 2026 · EPA return-to-compliance field December 31, 2025

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
129 March 31, 2026 Resolving Federal Compliance achieved
Monitoring or reporting · Resolved
Monitoring, RegularViolation 256 · Tetrachloroethylene · Volatile Organic Chemicals
Noncompliance period start January 1, 2020 · period end December 31, 2025 · first reported February 18, 2026 · EPA return-to-compliance field December 31, 2025

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
129 March 31, 2026 Resolving Federal Compliance achieved
Monitoring or reporting · Resolved
Monitoring, RegularViolation 255 · 1,1,2-Trichloroethane · Volatile Organic Chemicals
Noncompliance period start January 1, 2020 · period end December 31, 2025 · first reported February 18, 2026 · EPA return-to-compliance field December 31, 2025

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
129 March 31, 2026 Resolving Federal Compliance achieved
Monitoring or reporting · Resolved
Monitoring, RegularViolation 254 · Trichloroethylene · Volatile Organic Chemicals
Noncompliance period start January 1, 2020 · period end December 31, 2025 · first reported February 18, 2026 · EPA return-to-compliance field December 31, 2025

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
129 March 31, 2026 Resolving Federal Compliance achieved
Monitoring or reporting · Resolved
Monitoring, RegularViolation 253 · 1,2-Dichloropropane · Volatile Organic Chemicals
Noncompliance period start January 1, 2020 · period end December 31, 2025 · first reported February 18, 2026 · EPA return-to-compliance field December 31, 2025

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
129 March 31, 2026 Resolving Federal Compliance achieved
Monitoring or reporting · Resolved
Monitoring, RegularViolation 252 · Carbon tetrachloride · Volatile Organic Chemicals
Noncompliance period start January 1, 2020 · period end December 31, 2025 · first reported February 18, 2026 · EPA return-to-compliance field December 31, 2025

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
129 March 31, 2026 Resolving Federal Compliance achieved
Monitoring or reporting · Resolved
Monitoring, RegularViolation 251 · 1,1,1-Trichloroethane · Volatile Organic Chemicals
Noncompliance period start January 1, 2020 · period end December 31, 2025 · first reported February 18, 2026 · EPA return-to-compliance field December 31, 2025

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
129 March 31, 2026 Resolving Federal Compliance achieved
Monitoring or reporting · Resolved
Monitoring, RegularViolation 250 · 1,2-Dichloroethane · Volatile Organic Chemicals
Noncompliance period start January 1, 2020 · period end December 31, 2025 · first reported February 18, 2026 · EPA return-to-compliance field December 31, 2025

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
129 March 31, 2026 Resolving Federal Compliance achieved
Monitoring or reporting · Resolved
Monitoring, RegularViolation 249 · trans-1,2-Dichloroethylene · Volatile Organic Chemicals
Noncompliance period start January 1, 2020 · period end December 31, 2025 · first reported February 18, 2026 · EPA return-to-compliance field December 31, 2025

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
129 March 31, 2026 Resolving Federal Compliance achieved
Monitoring or reporting · Resolved
Monitoring, RegularViolation 248 · 1,1-Dichloroethylene · Volatile Organic Chemicals
Noncompliance period start January 1, 2020 · period end December 31, 2025 · first reported February 18, 2026 · EPA return-to-compliance field December 31, 2025

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
129 March 31, 2026 Resolving Federal Compliance achieved
Monitoring or reporting · Resolved
Monitoring, RegularViolation 247 · Vinyl chloride · Volatile Organic Chemicals
Noncompliance period start January 1, 2020 · period end December 31, 2025 · first reported February 18, 2026 · EPA return-to-compliance field December 31, 2025

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
129 March 31, 2026 Resolving Federal Compliance achieved
Monitoring or reporting · Resolved
Monitoring, RegularViolation 246 · p-Dichlorobenzene · Volatile Organic Chemicals
Noncompliance period start January 1, 2020 · period end December 31, 2025 · first reported February 18, 2026 · EPA return-to-compliance field December 31, 2025

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
129 March 31, 2026 Resolving Federal Compliance achieved
Monitoring or reporting · Resolved
Monitoring, RegularViolation 245 · o-Dichlorobenzene · Volatile Organic Chemicals
Noncompliance period start January 1, 2020 · period end December 31, 2025 · first reported February 18, 2026 · EPA return-to-compliance field December 31, 2025

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
129 March 31, 2026 Resolving Federal Compliance achieved
Monitoring or reporting · Resolved
Monitoring, RegularViolation 244 · DICHLOROMETHANE · Volatile Organic Chemicals
Noncompliance period start January 1, 2020 · period end December 31, 2025 · first reported February 18, 2026 · EPA return-to-compliance field December 31, 2025

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
129 March 31, 2026 Resolving Federal Compliance achieved
Monitoring or reporting · Resolved
Monitoring, RegularViolation 243 · Xylenes, Total · Volatile Organic Chemicals
Noncompliance period start January 1, 2020 · period end December 31, 2025 · first reported February 18, 2026 · EPA return-to-compliance field December 31, 2025

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
129 March 31, 2026 Resolving Federal Compliance achieved
Monitoring or reporting · Resolved
Monitoring, RegularViolation 242 · cis-1,2-Dichloroethylene · Volatile Organic Chemicals
Noncompliance period start January 1, 2020 · period end December 31, 2025 · first reported February 18, 2026 · EPA return-to-compliance field December 31, 2025

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
129 March 31, 2026 Resolving Federal Compliance achieved
Monitoring or reporting · Resolved
Monitoring, RegularViolation 241 · 1,2,4-Trichlorobenzene · Volatile Organic Chemicals
Noncompliance period start January 1, 2020 · period end December 31, 2025 · first reported February 18, 2026 · EPA return-to-compliance field December 31, 2025

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
129 March 31, 2026 Resolving Federal Compliance achieved
Monitoring or reporting · Resolved
Monitoring, RegularViolation 224 · Arsenic · Arsenic Rule
Noncompliance period start January 1, 2020 · period end December 31, 2022 · first reported March 1, 2023 · EPA return-to-compliance field December 31, 2022

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
117 October 14, 2025 Resolving Federal Compliance achieved
Monitoring or reporting · Resolved
Monitoring, RegularViolation 223 · Combined Radium (-226 and -228) · Radionuclides and Revised Rad Rule
Noncompliance period start January 1, 2020 · period end December 31, 2022 · first reported March 1, 2023 · EPA return-to-compliance field December 31, 2022

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
128 February 24, 2026 Resolving Federal Compliance achieved
Monitoring or reporting · Resolved
Monitoring, RegularViolation 222 · Combined Uranium · Radionuclides and Revised Rad Rule
Noncompliance period start January 1, 2020 · period end December 31, 2022 · first reported March 1, 2023 · EPA return-to-compliance field December 31, 2022

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
128 February 24, 2026 Resolving Federal Compliance achieved
Monitoring or reporting · Resolved
Monitoring, RegularViolation 221 · Gross Alpha, Excl. Radon and U · Radionuclides and Revised Rad Rule
Noncompliance period start January 1, 2020 · period end December 31, 2022 · first reported March 1, 2023 · EPA return-to-compliance field December 31, 2022

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
128 February 24, 2026 Resolving Federal Compliance achieved
EPA health-based flag · Resolved
Failure To Address DeficiencyViolation 215 · Groundwater Rule · Ground Water Rule
Noncompliance period start June 1, 2018 · period end January 12, 2024 · first reported December 21, 2020 · EPA return-to-compliance field January 12, 2024

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
104 January 12, 2024 Resolving Federal Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
123	September 20, 2025	Informal	Federal Public Notification received from PWS

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
113	July 30, 2025	Resolving	Federal Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
115	July 30, 2025	Resolving	Federal Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
112	July 28, 2025	Resolving	Federal Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
100	May 19, 2023	Resolving	Federal Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
128	February 24, 2026	Resolving	Federal Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
97	July 22, 2022	Resolving	Federal Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
96	June 14, 2022	Resolving	Federal Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
129	March 31, 2026	Resolving	Federal Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
129	March 31, 2026	Resolving	Federal Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
129	March 31, 2026	Resolving	Federal Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
129	March 31, 2026	Resolving	Federal Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
129	March 31, 2026	Resolving	Federal Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
129	March 31, 2026	Resolving	Federal Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
129	March 31, 2026	Resolving	Federal Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
129	March 31, 2026	Resolving	Federal Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
129	March 31, 2026	Resolving	Federal Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
129	March 31, 2026	Resolving	Federal Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
129	March 31, 2026	Resolving	Federal Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
129	March 31, 2026	Resolving	Federal Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
129	March 31, 2026	Resolving	Federal Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
129	March 31, 2026	Resolving	Federal Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
129	March 31, 2026	Resolving	Federal Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
129	March 31, 2026	Resolving	Federal Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
129	March 31, 2026	Resolving	Federal Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
129	March 31, 2026	Resolving	Federal Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
129	March 31, 2026	Resolving	Federal Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
129	March 31, 2026	Resolving	Federal Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
129	March 31, 2026	Resolving	Federal Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
117	October 14, 2025	Resolving	Federal Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
128	February 24, 2026	Resolving	Federal Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
128	February 24, 2026	Resolving	Federal Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
128	February 24, 2026	Resolving	Federal Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
104	January 12, 2024	Resolving	Federal 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