Public water system record

Yacolt

Serves an area of Clark County, WA that includes Yacolt · 3,034 people served

Federal records show 1 health-based violation and no monitoring/reporting issues for Yacolt in the last ten years. The most serious issue in this window was a resolved Lead and Copper Rule violation.

  • WA5399000
  • VANCOUVER
  • WA
  • 3,034 served

System profile

Source water Groundwater
ZIP 98668
EPA system ID WA5399000

Verify this system on EPA ECHO →

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

Key facts

  • Yacolt draws water from 3 wells (1 of them for emergency, seasonal or other part-time use).
  • Record on file since 1979, with 9 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 0 unknown out of 653 service lines.

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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
Lead and Copper Rule
Treatment technique failure
350 Oct 2, 2022 Resolved No

Full record since 1979

EPA's records for Yacolt go back to 1979. Before October 19, 2016 they list 9 health-based violations (9 archived by EPA without a recorded fix) and 63 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1970s 0 9
1990s 9 1
2000s 0 52
2010 to October 18, 2016 0 1
2020s 1 0

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

Show all 9 health-based violations before October 19, 2016
Contaminant Start date Status
Total Coliform
Contaminant limit exceeded
Jan 1, 1997 Archived
Total Coliform
Contaminant limit exceeded
Jun 1, 1996 Archived
Total Coliform
Contaminant limit exceeded
Dec 1, 1995 Archived
Total Coliform
Contaminant limit exceeded
Aug 1, 1995 Archived
Total Coliform
Contaminant limit exceeded
Jun 1, 1994 Archived
Total Coliform (acute)
Contaminant limit exceeded
Dec 1, 1992 Archived
Total Coliform
Contaminant limit exceeded
Sep 1, 1992 Archived
Total Coliform
Contaminant limit exceeded
Jun 1, 1992 Archived
Total Coliform
Contaminant limit exceeded
May 1, 1992 Archived

What the violations mean

Lead and Copper Rule

1 incident

The system did not complete a treatment step or action that the Lead and Copper Rule requires (a treatment technique violation).

The utility had to notify customers about this violation.

Where the water comes from

Yacolt draws water from 3 wells (1 of them for emergency, seasonal or other part-time use).

Annual water quality report

Yacolt 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.