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Public water system record

Whidbey West Water Assoc.

Serves an area of Island County, WA · 415 people served

Federal records show 11 health-based violations and 7 monitoring/reporting issues for Whidbey West Water Assoc. 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.

  • WA5336314
  • COUPEVILLE
  • WA
  • 415 served

System profile

Source water Groundwater
ZIP 98239
EPA system ID WA5336314

Verify this system on EPA ECHO →

Health-based violations, last 10 years
11
Resolved
10
Unresolved
0
Archived by EPA
1
Any acute record
No
Monitoring issues, last 10 years
7

Key facts

  • Whidbey West Water Assoc. draws water from 2 wells.
  • Highest measured level in the last 10 years: Total Trihalomethanes (TTHMs), 155 µg/L, federal limit 80 µg/L (1.9 times the limit), 2020.
  • Most recent formal enforcement: compliance order (no penalty) by Washington, January 2020.
  • Record on file since 1992, with 8 health-based violations before October 19, 2016.

Check whether Whidbey West Water Assoc. 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 99.6 µg/L, federal limit 80 µg/L (1.2 times 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
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 70 µg/L, federal limit 60 µg/L (1.2 times the limit)
 220 Oct 1, 2021 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 98.1 µg/L, federal limit 80 µg/L (1.2 times the limit)
 220 Oct 1, 2021 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 89.7 µg/L, federal limit 80 µg/L (1.1 times the limit)
 220 Jul 1, 2021 Resolved No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 66.5 µg/L, federal limit 60 µg/L (1.1 times the limit)
 220 Jan 1, 2021 Resolved No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 80.2 µg/L, federal limit 60 µg/L (1.3 times the limit)
 220 Jul 1, 2020 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 100.6 µg/L, federal limit 80 µg/L (1.3 times the limit)
 220 Jul 1, 2020 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 155 µg/L, federal limit 80 µg/L (1.9 times the limit)
 220 Apr 1, 2020 Resolved No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 75.6 µg/L, federal limit 60 µg/L (1.3 times the limit)
 220 Oct 1, 2019 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 87.7 µg/L, federal limit 80 µg/L (1.1 times the limit)
 220 Oct 1, 2019 Resolved No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 70.3 µg/L, federal limit 60 µg/L (1.2 times the limit)
 220 Jul 1, 2019 Resolved No

Monitoring and reporting issues

Since October 2016

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

Issue Start date Status
Nitrate
Monitoring and reporting
 Jan 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Consumer Confidence Rule
OTHER
 Jul 1, 2024 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
 Apr 1, 2024 Resolved
Haloacetic Acids (HAA5)
Monitoring and reporting
 Apr 1, 2024 Resolved
Lead and Copper Rule
Monitoring and reporting
 Jan 1, 2023 Active
Nitrate
Monitoring and reporting
 Jan 1, 2022 Resolved
Lead and Copper Rule
Monitoring and reporting
 Jan 1, 2019 Resolved

Full record since 1992

EPA's records for Whidbey West Water Assoc. go back to 1992. Before October 19, 2016 they list 8 health-based violations (8 archived by EPA without a recorded fix) and 30 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1990s 8 2
2000s 0 27
2010 to October 18, 2016 0 1
October 19, 2016 to 2019 3 1
2020s 8 6

Most recent health-based violation before October 19, 2016: Total Coliform, began October 1997, Archived.

Show all 8 health-based violations before October 19, 2016
Contaminant Start date Status
Total Coliform
Contaminant limit exceeded
 Oct 1, 1997 Archived
Total Coliform
Contaminant limit exceeded
 Jul 1, 1997 Archived
Total Coliform
Contaminant limit exceeded
 Jun 1, 1996 Archived
Total Coliform
Contaminant limit exceeded
 Nov 1, 1995 Archived
Total Coliform
Contaminant limit exceeded
 Oct 1, 1995 Archived
Total Coliform
Contaminant limit exceeded
 Sep 1, 1995 Archived
Total Coliform
Contaminant limit exceeded
 Sep 1, 1993 Archived
Total Coliform
Contaminant limit exceeded
 Aug 1, 1993 Archived

Enforcement actions

Washington regulators took 2 formal enforcement actions against Whidbey West Water Assoc. between 1996 and 2020. The most recent was a compliance order (no penalty) in January 2020.

Date By Action Violations covered
Jan 23, 2020 Washington Compliance order (no penalty) 9 violations (9 health-based): Haloacetic Acids (HAA5), Total Trihalomethanes (TTHMs)
Sep 16, 1996 Washington Signed compliance agreement 2 violations (1 health-based): Total Coliform, Lead and Copper Rule

What the violations mean

Total Trihalomethanes (TTHMs)

6 incidents

Disinfection byproduct levels exceeded the federal limit

Long-term TTHM exposure may increase bladder cancer risk

Haloacetic Acids (HAA5)

5 incidents

Haloacetic acid byproducts exceeded the federal limit

Long-term exposure to HAAs may increase cancer risk

Where the water comes from

Whidbey West Water Assoc. draws water from 2 wells. It also has an emergency connection to Sea View Water LLC. 1 other public water system has an emergency connection to Whidbey West Water Assoc.

Emergency or part-time connections to

Annual water quality report

Whidbey West Water Assoc. 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 Whidbey West Water Assoc. 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