Tap Truth EPA drinking water records, in plain English

Public water system record

Rolling Hills-Glencairn

Serves an area of Island County, WA · 872 people served

Federal records show 7 health-based violations and 13 monitoring/reporting issues for Rolling Hills-Glencairn in the last ten years. The most serious issue in this window was a Total Trihalomethanes (TTHMs) violation that EPA lists as archived, not resolved.

  • WA5374000
  • OAK HARBOR
  • WA
  • 872 served

System profile

Source water Groundwater
ZIP 98277
EPA system ID WA5374000

Verify this system on EPA ECHO →

Health-based violations, last 10 years
7
Resolved
0
Unresolved
0
Archived by EPA
7
Any acute record
No
Monitoring issues, last 10 years
13

Key facts

  • Rolling Hills-Glencairn draws water from 3 wells.
  • Highest measured level in the last 10 years: Total Trihalomethanes (TTHMs), 120.7 µg/L, federal limit 80 µg/L (1.5 times the limit), 2024.
  • Most recent formal enforcement: compliance order (no penalty) by Washington, May 2024.
  • Record on file since 1979, with 0 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 157 unknown out of 449 service lines.

Check whether Rolling Hills-Glencairn serves your address

Address suggestions by Mapbox

Health-based violations

Since October 2016

Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.

Contaminant Rule family Start date Status Acute
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 89.5 µg/L, federal limit 80 µg/L (1.1 times the limit)
 220 Oct 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
 No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 81.5 µg/L, federal limit 80 µg/L (at or just above the limit)
 220 Jan 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
 No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 82.35 µg/L, federal limit 80 µg/L (at or just above the limit)
 220 Oct 1, 2024 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
 No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 95.7 µg/L, federal limit 80 µg/L (1.2 times the limit)
 220 Jul 1, 2024 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
 No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 82.8 µg/L, federal limit 80 µg/L (at or just above the limit)
 220 Apr 1, 2024 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
 No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 120.7 µg/L, federal limit 80 µg/L (1.5 times the limit)
 220 Jan 1, 2024 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
 No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 92.1 µg/L, federal limit 80 µg/L (1.2 times the limit)
 220 Oct 1, 2023 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
 No

Monitoring and reporting issues

Since October 2016

Missed tests or reports, not contaminants found above a limit.

Issue Start date Status
Revised Total Coliform Rule
Monitoring violation
 Sep 1, 2024 Resolved
Haloacetic Acids (HAA5)
Monitoring and reporting
 Jul 1, 2024 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
 Jul 1, 2024 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
 Apr 1, 2024 Resolved
Haloacetic Acids (HAA5)
Monitoring and reporting
 Apr 1, 2024 Resolved
Revised Total Coliform Rule
Monitoring violation
 Mar 1, 2024 Resolved
Nitrate
Monitoring and reporting
 Jan 1, 2023 Resolved
Nitrate
Monitoring and reporting
 Jan 1, 2022 Resolved
Nitrate
Monitoring and reporting
 Jan 1, 2022 Resolved
Nitrate
Monitoring and reporting
 Jan 1, 2022 Resolved
Lead and Copper Rule
Monitoring and reporting
 Jan 1, 2021 Resolved
Haloacetic Acids (HAA5)
Monitoring and reporting
 Oct 1, 2020 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
 Oct 1, 2020 Resolved

Full record since 1979

EPA's records for Rolling Hills-Glencairn go back to 1979. Before October 19, 2016 they list no health-based violations and 22 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1970s 0 9
2000s 0 13
2020s 7 13

Enforcement actions

Washington regulators took 2 formal enforcement actions against Rolling Hills-Glencairn in 2024. The most recent was a compliance order (no penalty) in May 2024.

Date By Action Violations covered
May 28, 2024 Washington Compliance order (no penalty) 2 violations: Nitrate
May 10, 2024 Washington Compliance order (no penalty) 7 violations (7 health-based): Total Trihalomethanes (TTHMs)

What the violations mean

Total Trihalomethanes (TTHMs)

7 incidents

Disinfection byproduct levels exceeded the federal limit

Long-term TTHM exposure may increase bladder cancer risk

Where the water comes from

Rolling Hills-Glencairn draws water from 3 wells.

Annual water quality report

Rolling Hills-Glencairn must give its customers an annual water quality report (Consumer Confidence Report) by July 1, with the levels its tests found in the previous year.

Where the state allows it, systems serving fewer than 10,000 people may publish the report in a local newspaper or news site instead of mailing it, and must provide a copy on request.

Find a posted report with EPA's Consumer Confidence Report search

Testing your own water

To test the water at your tap, or a private well this record does not cover, use a laboratory certified for drinking water by Washington.

Certified drinking water labs by state EPA guidance for private wells