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Public water system record

Pine Terrace Water Association

Serves an area of Island County, WA · 181 people served

Federal records show 1 health-based violation and 2 monitoring/reporting issues for Pine Terrace Water Association 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.

  • WA5367600
  • COUPEVILLE
  • WA
  • 181 served

System profile

Source water Groundwater
ZIP 98239
EPA system ID WA5367600

Verify this system on EPA ECHO →

Health-based violations, last 10 years
1
Resolved
0
Unresolved
0
Archived by EPA
1
Any acute record
No
Monitoring issues, last 10 years
2

Key facts

  • Pine Terrace Water Association draws water from 3 wells.
  • Highest measured level in the last 10 years: Total Trihalomethanes (TTHMs), 83.6 µg/L, federal limit 80 µg/L (at or just above the limit), 2025.
  • Most recent formal enforcement: compliance order (no penalty) by Washington, August 2025.
  • Record on file since 1979, with 0 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 0 unknown out of 55 service lines.

Check whether Pine Terrace Water Association serves your address

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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 83.6 µg/L, federal limit 80 µg/L (at or just above the limit)
 220 Apr 1, 2025 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
Haloacetic Acids (HAA5)
Monitoring and reporting
 Jan 1, 2021 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
 Jan 1, 2021 Resolved

Full record since 1979

EPA's records for Pine Terrace Water Association go back to 1979. Before October 19, 2016 they list no health-based violations and 15 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1970s 0 9
1990s 0 6
2020s 1 2

Enforcement actions

Washington regulators took 1 formal enforcement action against Pine Terrace Water Association in 2025. The most recent was a compliance order (no penalty) in August 2025.

Date By Action Violations covered
Aug 22, 2025 Washington Compliance order (no penalty) 1 violation (1 health-based): Total Trihalomethanes (TTHMs)

What the violations mean

Total Trihalomethanes (TTHMs)

1 incident

Disinfection byproduct levels exceeded the federal limit

Long-term TTHM exposure may increase bladder cancer risk

Where the water comes from

Pine Terrace Water Association draws water from 3 wells.

Annual water quality report

Pine Terrace Water Association 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.

Systems serving 500 or fewer people may meet the rule by telling customers the report is available on request, so you may need to ask Pine Terrace Water Association for a copy.

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