MA4096001 · Massachusetts
OTIS AIR NATIONAL GUARD BASE
Federal fiscal 2026Q3 · EPA violation and follow-up records
- Violation records shown
- 5
- EPA health-based flag
- 2
- Health-based records unresolved in this snapshot
- 1
- Monitoring and reporting records
- 3
Counties listed by EPA · Barnstable County, Massachusetts
Find the utility’s annual water quality report. For current advisories, check the utility or local drinking-water authority.
Violations and what followed
Among 1 resolved record with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 21 days. The interval uses the reporting periods and dates on file.
EPA health-based flag · Unaddressed by formal action
LSL InventoryViolation 7 · LEAD AND COPPER RULE REVISIONS · Lead and Copper Rule RevisionsNoncompliance period start October 17, 2024 · first reported March 31, 2025
No linked action row appears in the records shown.Monitoring or reporting · Archived
Monitoring and Reporting (DBP)Violation 22 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start August 1, 2026 · period end August 31, 2026 · first reported September 24, 2026 · EPA return-to-compliance field August 31, 2026
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 26 September 11, 2026 Formal State Administrative/Compliance Order without penalty issued Monitoring or reporting · Archived
Monitoring and Reporting (DBP)Violation 21 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start August 1, 2026 · period end August 31, 2026 · first reported September 24, 2026 · EPA return-to-compliance field August 31, 2026
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 26 September 11, 2026 Formal State Administrative/Compliance Order without penalty issued Monitoring or reporting · Unaddressed by formal action
LSL ReportingViolation 8 · LEAD AND COPPER RULE REVISIONS · Lead and Copper Rule RevisionsNoncompliance period start October 17, 2024 · first reported September 24, 2026
No linked action row appears in the records shown.EPA health-based flag · Resolved
Maximum Contaminant Level Violation, E. coli (RTCR)Violation 6 · Revised Total Coliform Rule · Revised Total Coliform RuleNoncompliance period start September 1, 2021 · period end September 22, 2021 · first reported December 15, 2022 · EPA return-to-compliance field September 22, 2021
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 21 September 20, 2021 Formal State Administrative/Compliance Order without penalty issued 22 September 22, 2021 Resolving State Compliance achieved
EPA data and scope
How to read the records
The enforcement snapshot is federal fiscal 2026Q3. The EPA archive labels its violation file October 13, 2026. EPA says federal reporting can lag by several months. For current advisories, check your utility or local drinking-water authority.
- We matched active community water systems by public water system ID between EPA’s system search and SDWIS inventory. We show violations with a recorded noncompliance, initial reporting or return-to-compliance date from 2021 onward, plus earlier records listed as Addressed or Unaddressed.
- EPA’s health-based flag identifies violations of contaminant or disinfectant limits or treatment requirements. Monitoring and reporting violations describe required tests or reports. Neither category measures household exposure.
- Addressed means EPA records formal enforcement on a violation that remains unresolved in the snapshot. Unaddressed means no formal action is recorded for an unresolved violation. Resolved can mean compliance was restored, the rule ceased to apply, or further action was unnecessary. Archived is a separate status.
- We count a violation once per water system and group its distinct linked actions. Conflicting records are set aside. Places are EPA-listed search locations and can include mailing locations. Use the provider name and system ID to identify your service.
EPA data dictionary and files · EPA reporting and enforcement FAQ · Find an annual water quality report · How to get the report from your utility