GASTON, OR · Washington County

LA WATER CO-OP Water System

Current status

No open violations on record as of July 4, 2026.

This system's next federally required Consumer Confidence Report is due July 1, 2027, under the EPA's revised reporting rule.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed July 4, 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): OR4100313
System type: Community Water System
Population served: 2,500
Service connections: 803
Ownership: privately owned
Water source: surface water (rivers, lakes, or reservoirs)

Violation history

Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
October 1, 2025 – December 31, 2025
Archived
Monitoring and Reporting (DBP)
—
TTHM
October 1, 2025 – December 31, 2025
Archived
Monitoring and Reporting (DBP)
—
TTHM
July 1, 2025 – September 30, 2025
Archived
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
July 1, 2025 – September 30, 2025
Archived
Monitoring and Reporting (DBP)
—
TTHM
January 1, 2025 – March 31, 2025
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
January 1, 2025 – March 31, 2025
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2024 – July 25, 2024
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
April 1, 2023 – June 30, 2023
Resolved
Monitoring and Reporting (DBP)
—
TTHM
April 1, 2023 – June 30, 2023
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
July 1, 2022 – September 30, 2022
Resolved
Monitoring and Reporting (DBP)
—
TTHM
July 1, 2022 – September 30, 2022
Resolved
Monitoring and Reporting (DBP)
—
TTHM
April 1, 2018 – June 30, 2018
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
April 1, 2018 – June 30, 2018
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
October 1, 2017 – August 7, 2018
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
July 1, 2017 – September 30, 2017
Resolved
Monitoring and Reporting (DBP)
—
TTHM
July 1, 2017 – September 30, 2017
Resolved
Monitoring and Reporting (DBP)
—
TTHM
April 1, 2016 – June 30, 2016
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
April 1, 2016 – June 30, 2016
Resolved
Monitoring and Reporting (DBP)
—
TTHM
January 1, 2015 – March 31, 2015
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
January 1, 2015 – March 31, 2015
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
December 1, 2004 – December 31, 2004
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
November 1, 2003 – November 30, 2003
Resolved
Operations Report
—
No contaminant on record
June 1, 1997 – September 27, 2001
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
December 1, 1994 – December 31, 1994
Resolved
Initial Tap Sampling for Pb and Cu
—
Lead and Copper Rule
January 1, 1994 – January 31, 1995
Resolved

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

Period	Violation	Contaminant / rule	Health-based	Status
October 1, 2025 – December 31, 2025	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Archived
October 1, 2025 – December 31, 2025	Monitoring and Reporting (DBP)	TTHM	—	Archived
July 1, 2025 – September 30, 2025	Monitoring and Reporting (DBP)	TTHM	—	Archived
July 1, 2025 – September 30, 2025	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Archived
January 1, 2025 – March 31, 2025	Monitoring and Reporting (DBP)	TTHM	—	Resolved
January 1, 2025 – March 31, 2025	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
July 1, 2024 – July 25, 2024	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
April 1, 2023 – June 30, 2023	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
April 1, 2023 – June 30, 2023	Monitoring and Reporting (DBP)	TTHM	—	Resolved
July 1, 2022 – September 30, 2022	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
July 1, 2022 – September 30, 2022	Monitoring and Reporting (DBP)	TTHM	—	Resolved
April 1, 2018 – June 30, 2018	Monitoring and Reporting (DBP)	TTHM	—	Resolved
April 1, 2018 – June 30, 2018	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
October 1, 2017 – August 7, 2018	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
July 1, 2017 – September 30, 2017	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
July 1, 2017 – September 30, 2017	Monitoring and Reporting (DBP)	TTHM	—	Resolved
April 1, 2016 – June 30, 2016	Monitoring and Reporting (DBP)	TTHM	—	Resolved
April 1, 2016 – June 30, 2016	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
January 1, 2015 – March 31, 2015	Monitoring and Reporting (DBP)	TTHM	—	Resolved
January 1, 2015 – March 31, 2015	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
December 1, 2004 – December 31, 2004	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
November 1, 2003 – November 30, 2003	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
June 1, 1997 – September 27, 2001	Operations Report	—	—	Resolved
December 1, 1994 – December 31, 1994	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
January 1, 1994 – January 31, 1995	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	—	Resolved

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

Enforcement actions

June 26, 2025State Compliance achieved2 linked violations
July 25, 2024State Compliance achieved1 linked violation
October 4, 2023State Compliance achieved2 linked violations
November 3, 2022State Compliance achieved2 linked violations
August 7, 2018State Compliance achieved1 linked violation
July 25, 2018State Compliance achieved2 linked violations
December 1, 2017State Compliance achieved2 linked violations
August 26, 2016State Compliance achieved2 linked violations
May 20, 2015State Compliance achieved2 linked violations
August 23, 2004State Administrative/Compliance Order with penalty issued1 linked violation
May 15, 2003State Public Notification received3 linked violations
September 1, 2001State Compliance achievedgeneral compliance action — not tied to a specific violation on record
November 21, 2000State Public Notification received2 linked violations
March 1, 1998State Administrative/Compliance Order with penalty issuedgeneral compliance action — not tied to a specific violation on record
June 22, 1995State Compliance achieved1 linked violation
January 31, 1995State Compliance achieved1 linked violation
January 31, 1995State Public Notification received1 linked violation
November 24, 1994State Public Notification received2 linked violations
November 4, 1994State Formal Notice of Violation issued1 linked violation

Contact

LA WATER CO-OP

503-662-3899

GASTON, OR 97119