Public Water Partners

ASTORIA, OR · Clatsop County

KNAPPA WATER ASSOCIATION Water System

Consumer Confidence Report status

KNAPPA WATER ASSOCIATION must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.

As of August 1, 2026, EPA's federal records show no open violations for KNAPPA WATER ASSOCIATION.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 2026. This is a record-keeping and public-information tool — it does not replace Oregon’s official records. Always confirm current status with Oregon before making decisions based on this information.

System facts

System ID (PWSID)
OR4100061
System type
Community Water System
Population served
1,800
Service connections
605
Ownership
privately owned
Water source
groundwater (wells)

KNAPPA WATER ASSOCIATION is one of 203 community water systems in Oregon in the 501 to 3,300 people size category, serving 1,800 people from groundwater.

As of August 1, 2026, its federal record holds 9 entries between 1976 and 2025, all of which EPA lists as closed.

All 9 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves the Total Coliform Rules, the Radionuclides and Revised Rad Rule, and the Lead and Copper Rule.

Violation history

  • Monitoring, Routine (RTCR)

    —

    Revised Total Coliform Rule

    December 1, 2025 – December 31, 2025

    Resolved

  • Monitoring, Routine (RTCR)

    —

    Revised Total Coliform Rule

    November 1, 2025 – November 30, 2025

    Resolved

  • Monitoring, Routine (RTCR)

    —

    Revised Total Coliform Rule

    November 1, 2023 – November 30, 2023

    Resolved

  • Monitoring, Routine (RTCR)

    —

    Revised Total Coliform Rule

    July 1, 2022 – July 31, 2022

    Resolved

  • Follow-up Or Routine LCR Tap M/R

    —

    Lead and Copper Rule

    October 1, 2021 – June 8, 2022

    Resolved

  • Monitoring, Routine (RTCR)

    —

    Revised Total Coliform Rule

    July 1, 2016 – July 31, 2016

    Archived

  • Monitoring, Routine Minor (TCR)

    —

    Coliform (TCR)

    March 1, 2000 – March 31, 2000

    Resolved

  • Monitoring, Regular

    —

    Combined Radium (-226 and -228)

    June 1, 1976 – May 31, 1980

    Archived

  • Monitoring, Regular

    —

    Gross Alpha, Excl. Radon and U

    June 1, 1976 – May 31, 1980

    Archived

Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

No enforcement actions on record for this system.

Common questions

Is KNAPPA WATER ASSOCIATION required to publish a Consumer Confidence Report?

Yes. KNAPPA WATER ASSOCIATION is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.

When is KNAPPA WATER ASSOCIATION’s next Consumer Confidence Report due?

KNAPPA WATER ASSOCIATION’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

Does KNAPPA WATER ASSOCIATION have any open drinking water violations on record?

As of August 1, 2026, EPA's federal records show no open violations for KNAPPA WATER ASSOCIATION.

What is a Consumer Confidence Report?

A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.

Contact

KNAPPA WATER ASSOCIATION

503-458-6461

ASTORIA, OR 97103