WA5309356 · Washington
MAPLE HILL PARK
Federal fiscal 2026Q3 · EPA violation and follow-up records
- Violation records shown
- 53
- EPA health-based flag
- 4
- Health-based records unresolved in this snapshot
- 0
- Monitoring and reporting records
- 49
Counties listed by EPA · Island County, Washington
Find the utility’s annual water quality report. For current advisories, check the utility or local drinking-water authority.
Violations and what followed
Among 49 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 1,095 days. The interval uses the reporting periods and dates on file.
EPA health-based flag · Archived
Maximum Contaminant Level Violation, Single SampleViolation 2679851 · Nitrate · Nitrate RuleNoncompliance period start January 1, 2026 · period end March 31, 2026 · first reported June 19, 2026 · EPA return-to-compliance field March 31, 2026
No linked action row appears in the records shown.EPA health-based flag · Archived
Maximum Contaminant Level Violation, Single SampleViolation 2679536 · Nitrate · Nitrate RuleNoncompliance period start January 1, 2026 · period end March 31, 2026 · first reported June 19, 2026 · EPA return-to-compliance field March 31, 2026
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 34785 February 11, 2026 Informal State Violation/Reminder Notice EPA health-based flag · Archived
Maximum Contaminant Level Violation, Single SampleViolation 2583325 · Nitrate · Nitrate RuleNoncompliance period start January 1, 2025 · period end December 31, 2025 · first reported December 11, 2025 · 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 34784 October 20, 2025 Informal State Violation/Reminder Notice EPA health-based flag · Archived
Maximum Contaminant Level Violation, Single SampleViolation 2510382 · Nitrate · Nitrate RuleNoncompliance period start January 1, 2025 · period end December 31, 2025 · first reported June 19, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.Monitoring or reporting · Resolved
Monitoring, RegularViolation 25368491085 · Thallium, Total · Inorganic ChemicalsNoncompliance period start January 1, 2023 · period end December 31, 2025 · first reported March 26, 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 2936849ENF January 1, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 25368491075 · Beryllium, Total · Inorganic ChemicalsNoncompliance period start January 1, 2023 · period end December 31, 2025 · first reported March 26, 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 2936849ENF January 1, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 25368491074 · Antimony, Total · Inorganic ChemicalsNoncompliance period start January 1, 2023 · period end December 31, 2025 · first reported March 26, 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 2936849ENF January 1, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 25368491045 · Selenium · Inorganic ChemicalsNoncompliance period start January 1, 2023 · period end December 31, 2025 · first reported March 26, 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 2936849ENF January 1, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 25368491041 · Nitrite · Nitrate RuleNoncompliance period start January 1, 2023 · period end December 31, 2025 · first reported March 26, 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 2936849ENF January 1, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 25368491036 · Nickel · Inorganic ChemicalsNoncompliance period start January 1, 2023 · period end December 31, 2025 · first reported March 26, 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 2936849ENF January 1, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 25368491035 · Mercury · Inorganic ChemicalsNoncompliance period start January 1, 2023 · period end December 31, 2025 · first reported March 26, 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 2936849ENF January 1, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 25368491025 · Fluoride · Inorganic ChemicalsNoncompliance period start January 1, 2023 · period end December 31, 2025 · first reported March 26, 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 2936849ENF January 1, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 25368491024 · CYANIDE · Inorganic ChemicalsNoncompliance period start January 1, 2023 · period end December 31, 2025 · first reported March 26, 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 2936849ENF January 1, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 25368491020 · Chromium · Inorganic ChemicalsNoncompliance period start January 1, 2023 · period end December 31, 2025 · first reported March 26, 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 2936849ENF January 1, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 25368491015 · Cadmium · Inorganic ChemicalsNoncompliance period start January 1, 2023 · period end December 31, 2025 · first reported March 26, 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 2936849ENF January 1, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 25368491010 · Barium · Inorganic ChemicalsNoncompliance period start January 1, 2023 · period end December 31, 2025 · first reported March 26, 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 2936849ENF January 1, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 25368491005 · Arsenic · Arsenic RuleNoncompliance period start January 1, 2023 · period end December 31, 2025 · first reported March 26, 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 2936849ENF January 1, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 2345702 · Nitrate · Nitrate RuleNoncompliance period start January 1, 2023 · period end December 31, 2023 · first reported March 29, 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 33704 June 10, 2024 Formal State Administrative/Compliance Order without penalty issued 2945702ENF October 15, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 2285872 · Nitrate · Nitrate RuleNoncompliance period start January 1, 2022 · period end December 31, 2022 · first reported March 31, 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 33704 June 10, 2024 Formal State Administrative/Compliance Order without penalty issued 2945702ENF October 15, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 2168889 · Nitrate · Nitrate RuleNoncompliance period start January 1, 2021 · period end December 31, 2021 · first reported March 29, 2022 · EPA return-to-compliance field December 31, 2021
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 33704 June 10, 2024 Formal State Administrative/Compliance Order without penalty issued 2945702ENF October 15, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 25709652996 · Styrene · Volatile Organic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2025 · first reported March 26, 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 2570965ENF January 1, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 25709652992 · Ethylbenzene · Volatile Organic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2025 · first reported March 26, 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 2570965ENF January 1, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 25709652991 · Toluene · Volatile Organic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2025 · first reported March 26, 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 2570965ENF January 1, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 25709652990 · Benzene · Volatile Organic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2025 · first reported March 26, 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 2570965ENF January 1, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 25709652989 · CHLOROBENZENE · Volatile Organic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2025 · first reported March 26, 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 2570965ENF January 1, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 25709652987 · Tetrachloroethylene · Volatile Organic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2025 · first reported March 26, 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 2570965ENF January 1, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 25709652985 · 1,1,2-Trichloroethane · Volatile Organic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2025 · first reported March 26, 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 2570965ENF January 1, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 25709652984 · Trichloroethylene · Volatile Organic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2025 · first reported March 26, 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 2570965ENF January 1, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 25709652983 · 1,2-Dichloropropane · Volatile Organic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2025 · first reported March 26, 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 2570965ENF January 1, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 25709652982 · Carbon tetrachloride · Volatile Organic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2025 · first reported March 26, 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 2570965ENF January 1, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 25709652981 · 1,1,1-Trichloroethane · Volatile Organic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2025 · first reported March 26, 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 2570965ENF January 1, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 25709652980 · 1,2-Dichloroethane · Volatile Organic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2025 · first reported March 26, 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 2570965ENF January 1, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 25709652979 · trans-1,2-Dichloroethylene · Volatile Organic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2025 · first reported March 26, 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 2570965ENF January 1, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 25709652977 · 1,1-Dichloroethylene · Volatile Organic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2025 · first reported March 26, 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 2570965ENF January 1, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 25709652976 · Vinyl chloride · Volatile Organic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2025 · first reported March 26, 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 2570965ENF January 1, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 25709652969 · p-Dichlorobenzene · Volatile Organic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2025 · first reported March 26, 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 2570965ENF January 1, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 25709652968 · o-Dichlorobenzene · Volatile Organic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2025 · first reported March 26, 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 2570965ENF January 1, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 25709652964 · DICHLOROMETHANE · Volatile Organic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2025 · first reported March 26, 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 2570965ENF January 1, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 25709652380 · cis-1,2-Dichloroethylene · Volatile Organic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2025 · first reported March 26, 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 2570965ENF January 1, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 25709652378 · 1,2,4-Trichlorobenzene · Volatile Organic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2025 · first reported March 26, 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 2570965ENF January 1, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 22711621085 · Thallium, Total · Inorganic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2022 · first reported March 31, 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 2936849ENF January 1, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 22711621075 · Beryllium, Total · Inorganic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2022 · first reported March 31, 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 2936849ENF January 1, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 22711621074 · Antimony, Total · Inorganic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2022 · first reported March 31, 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 2936849ENF January 1, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 22711621045 · Selenium · Inorganic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2022 · first reported March 31, 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 2936849ENF January 1, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 22711621041 · Nitrite · Nitrate RuleNoncompliance period start January 1, 2020 · period end December 31, 2022 · first reported March 31, 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 2936849ENF January 1, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 22711621036 · Nickel · Inorganic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2022 · first reported March 31, 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 2936849ENF January 1, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 22711621035 · Mercury · Inorganic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2022 · first reported March 31, 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 2936849ENF January 1, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 22711621025 · Fluoride · Inorganic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2022 · first reported March 31, 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 2936849ENF January 1, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 22711621024 · CYANIDE · Inorganic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2022 · first reported March 31, 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 2936849ENF January 1, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 22711621020 · Chromium · Inorganic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2022 · first reported March 31, 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 2936849ENF January 1, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 22711621015 · Cadmium · Inorganic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2022 · first reported March 31, 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 2936849ENF January 1, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 22711621010 · Barium · Inorganic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2022 · first reported March 31, 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 2936849ENF January 1, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 22711621005 · Arsenic · Arsenic RuleNoncompliance period start January 1, 2020 · period end December 31, 2022 · first reported March 31, 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 2936849ENF January 1, 2026 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