OR4100902 · Oregon

INTERLACHEN WATER PUD

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

Violation records shown: 36
EPA health-based flag: 3
Health-based records unresolved in this snapshot: 0
Monitoring and reporting records: 28

Counties listed by EPA · Multnomah County, Oregon

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

Violations and what followed

Among 12 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 89 days. The interval uses the reporting periods and dates on file.

Monitoring or reporting · Resolved
Monitoring, Routine (RTCR)Violation 901650334 · Revised Total Coliform Rule · Revised Total Coliform Rule
Noncompliance period start February 1, 2026 · period end February 28, 2026 · first reported June 26, 2026 · EPA return-to-compliance field February 28, 2026

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
1367 March 24, 2026 Resolving State Compliance achieved
Monitoring or reporting · Resolved
Monitoring, Source Water (GWR)Violation 901650332 · E. COLI · Ground Water Rule
Noncompliance period start November 1, 2025 · period end November 3, 2025 · first reported March 25, 2026 · EPA return-to-compliance field November 3, 2025

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
1366 November 3, 2025 Resolving State Compliance achieved
Other or unclassified · Resolved
Consumer Confidence Report Inadequate ReportingViolation 901650333 · Consumer Confidence Rule · Consumer Confidence Rule
Noncompliance period start October 1, 2025 · period end May 12, 2026 · first reported March 25, 2026 · EPA return-to-compliance field May 12, 2026

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
1368 May 12, 2026 Resolving State Compliance achieved
Other or unclassified · Resolved
Consumer Confidence Report Complete Failure to ReportViolation 901650330 · Consumer Confidence Rule · Consumer Confidence Rule
Noncompliance period start July 1, 2025 · period end July 14, 2025 · first reported December 23, 2025 · EPA return-to-compliance field July 14, 2025

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
1365 July 14, 2025 Resolving State Compliance achieved
Monitoring or reporting · Resolved
Monitoring, Source Water (GWR)Violation 901650329 · E. COLI · Ground Water Rule
Noncompliance period start January 19, 2025 · period end November 3, 2025 · first reported June 24, 2025 · EPA return-to-compliance field November 3, 2025

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
1366 November 3, 2025 Resolving State Compliance achieved
Monitoring or reporting · Archived
Monitoring, RegularViolation 901650359 · Nitrate · Nitrate Rule
Noncompliance period start January 1, 2025 · period end December 31, 2025 · first reported March 25, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Other or unclassified · Resolved
Consumer Confidence Report Inadequate ReportingViolation 901650327 · Consumer Confidence Rule · Consumer Confidence Rule
Noncompliance period start October 1, 2023 · period end November 3, 2023 · first reported February 15, 2024 · EPA return-to-compliance field November 3, 2023

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
1363 November 3, 2023 Resolving State Compliance achieved
Other or unclassified · Resolved
Consumer Confidence Report Complete Failure to ReportViolation 901650326 · Consumer Confidence Rule · Consumer Confidence Rule
Noncompliance period start July 1, 2023 · period end November 3, 2023 · first reported November 28, 2023 · EPA return-to-compliance field November 3, 2023

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
1363 November 3, 2023 Resolving State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
1367	March 24, 2026	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
1366	November 3, 2025	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
1368	May 12, 2026	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
1365	July 14, 2025	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
1366	November 3, 2025	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
1363	November 3, 2023	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
1363	November 3, 2023	Resolving	State Compliance achieved

Other or unclassified · Resolved

Public Notification Violation for NPDWR ViolationViolation 901650325 · Public Notice · Public Notice Rule and Revised PN Rule

Noncompliance period start May 21, 2023 · period end June 16, 2023 · first reported August 30, 2023 · EPA return-to-compliance field June 16, 2023

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
1359	June 15, 2023	Resolving	State Compliance achieved
1360	June 16, 2023	Resolving	State Compliance achieved
1362	July 10, 2023	Informal	State Bilateral Compliance Agreement signed

EPA health-based flag · Resolved

Maximum Contaminant Level Violation, AverageViolation 901650323 · Di(2-ethylhexyl) phthalate · Synthetic Organic Chemicals

Noncompliance period start January 1, 2023 · period end March 31, 2023 · first reported May 22, 2023 · EPA return-to-compliance field March 31, 2023

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
1357	April 20, 2023	Informal	State Public Notification requested
1358	June 16, 2023	Informal	State Public Notification received
1362	July 10, 2023	Informal	State Bilateral Compliance Agreement signed
1364	March 18, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 901650322 · Di(2-ethylhexyl) phthalate · Synthetic Organic Chemicals

Noncompliance period start January 1, 2023 · period end March 31, 2023 · first reported May 22, 2023 · EPA return-to-compliance field March 31, 2023

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
1361	June 15, 2023	Resolving	State Compliance achieved
1362	July 10, 2023	Informal	State Bilateral Compliance Agreement signed

EPA health-based flag · Resolved

Maximum Contaminant Level Violation, AverageViolation 901650320 · Di(2-ethylhexyl) phthalate · Synthetic Organic Chemicals

Noncompliance period start October 1, 2022 · period end December 31, 2022 · first reported February 22, 2023 · EPA return-to-compliance field December 31, 2022

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
1353	February 2, 2023	Informal	State Public Notification requested
1356	March 9, 2023	Informal	State Public Notification received
1362	July 10, 2023	Informal	State Bilateral Compliance Agreement signed
1364	March 18, 2024	Resolving	State Compliance achieved

EPA health-based flag · Resolved

Maximum Contaminant Level Violation, Single SampleViolation 901650319 · Di(2-ethylhexyl) phthalate · Synthetic Organic Chemicals

Noncompliance period start July 1, 2022 · period end September 30, 2022 · first reported February 22, 2023 · EPA return-to-compliance field September 30, 2022

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
1354	February 2, 2023	Informal	State Public Notification requested
1355	March 9, 2023	Informal	State Public Notification received
1362	July 10, 2023	Informal	State Bilateral Compliance Agreement signed
1364	March 18, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Archived
Monitoring, RegularViolation 901650358 · Gross Alpha, Excl. Radon and U · Radionuclides and Revised Rad Rule
Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 25, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 901650357 · Combined Uranium · Radionuclides and Revised Rad Rule
Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 25, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 901650356 · Arsenic · Arsenic Rule
Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 25, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 901650355 · Barium · Inorganic Chemicals
Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 25, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 901650354 · Cadmium · Inorganic Chemicals
Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 25, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 901650353 · Chromium · Inorganic Chemicals
Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 25, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 901650352 · Fluoride · Inorganic Chemicals
Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 25, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 901650351 · Mercury · Inorganic Chemicals
Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 25, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 901650350 · Nickel · Inorganic Chemicals
Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 25, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 901650348 · Antimony, Total · Inorganic Chemicals
Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 25, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 901650347 · Beryllium, Total · Inorganic Chemicals
Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 25, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 901650346 · Thallium, Total · Inorganic Chemicals
Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 25, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 901650345 · Selenium · Inorganic Chemicals
Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 25, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 901650344 · Nitrite · Nitrate Rule
Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 25, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 901650343 · Gross Alpha, Excl. Radon and U · Radionuclides and Revised Rad Rule
Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 25, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 901650342 · Combined Radium (-226 and -228) · Radionuclides and Revised Rad Rule
Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 25, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 901650341 · Combined Uranium · Radionuclides and Revised Rad Rule
Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 25, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 901650340 · Gross Alpha, Excl. Radon and U · Radionuclides and Revised Rad Rule
Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 25, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 901650339 · Combined Radium (-226 and -228) · Radionuclides and Revised Rad Rule
Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 25, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 901650338 · Combined Uranium · Radionuclides and Revised Rad Rule
Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 25, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 901650337 · Gross Alpha, Excl. Radon and U · Radionuclides and Revised Rad Rule
Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 25, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 901650336 · Combined Radium (-226 and -228) · Radionuclides and Revised Rad Rule
Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 25, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 901650335 · Combined Uranium · Radionuclides and Revised Rad Rule
Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 25, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.

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