Clatskanie Water Quality
Oregon
According to EPA SDWIS, Clatskanie, Oregon is served by 7 community water systems covering about 2,883 people. The same extract lists 46 health-based violation records, most recently coded 0300 in 2025. Counts are historical EPA registry rows, not a current compliance or drinkability score.
Drinking water in Clatskanie, Oregon is delivered through 7 EPA-regulated community water systems serving an estimated 2,883 people. Each system is tracked in the EPA Safe Drinking Water Information System (SDWIS) under the Safe Drinking Water Act, which requires testing for regulated contaminants, consumer notification of violations, and publication of an annual Consumer Confidence Report.
PlainEnviro's health-based SDWIS extract shows 46 violation records across the 7 active community systems shown here. Monitoring and reporting records are not present in the extract. The records carry 5 distinct EPA contaminant codes: Interim Enhanced Surface Water Treatment Rule, Total Haloacetic Acids (HAA5), Revised Total Coliform Rule, Stage 1 Disinfectants and Disinfection Byproducts Rule, Surface Water Treatment Rule. 3 TRI-reporting industrial facilities are also located within the city limits.
A past EPA health-based registry row does not describe water delivered today or current compliance status; utilities notify customers and remediate under state primacy oversight when required. For current water-quality status and treatment practices, review your local utility's most recent Consumer Confidence Report or contact the Oregon drinking water program. All records above reflect federal EPA SDWIS data and are not independently verified against state databases.
Community Water Systems
| System Name | Pop. Served | Violations | Status |
|---|---|---|---|
| CLATSKANIE, CITY OF | 2,188 | 0 | Clean |
| QUINCY WATER ASSOCIATION | 300 | 0 | Clean |
| MIDLAND WATER ASSOCIATION | 160 | 28 | Health |
| LOST CREEK HEIGHTS WTR ASSOC | 100 | 0 | Clean |
| MARSHLAND WATER ASSOCIATION | 70 | 15 | Health |
| SWEDETOWN WATER ASSOC | 40 | 2 | Health |
| WESTLAND WATER ASSOCIATION | 25 | 1 | Health |
Does this city have health-based water violations?
These health-based records can represent Maximum Contaminant Level (MCL), Treatment Technique (TT), or Maximum Residual Disinfectant Level (MRDL) categories. A historical record does not establish that water is currently unsafe.
| Water system | Contaminant | Begin Date |
|---|---|---|
| MIDLAND WATER ASSOCIATION | Interim Enhanced Surface Water Treatment Rule | 2025-12-01 |
| MIDLAND WATER ASSOCIATION | Interim Enhanced Surface Water Treatment Rule | 2025-11-01 |
| MIDLAND WATER ASSOCIATION | Interim Enhanced Surface Water Treatment Rule | 2025-10-01 |
| MIDLAND WATER ASSOCIATION | Interim Enhanced Surface Water Treatment Rule | 2025-08-01 |
| MIDLAND WATER ASSOCIATION | Interim Enhanced Surface Water Treatment Rule | 2025-08-01 |
| MIDLAND WATER ASSOCIATION | Interim Enhanced Surface Water Treatment Rule | 2025-05-01 |
| MIDLAND WATER ASSOCIATION | Interim Enhanced Surface Water Treatment Rule | 2025-05-01 |
| MIDLAND WATER ASSOCIATION | Interim Enhanced Surface Water Treatment Rule | 2025-05-01 |
| MIDLAND WATER ASSOCIATION | Interim Enhanced Surface Water Treatment Rule | 2025-02-01 |
| MIDLAND WATER ASSOCIATION | Interim Enhanced Surface Water Treatment Rule | 2025-02-01 |
| MIDLAND WATER ASSOCIATION | Interim Enhanced Surface Water Treatment Rule | 2024-12-01 |
| MIDLAND WATER ASSOCIATION | Interim Enhanced Surface Water Treatment Rule | 2024-12-01 |
| MIDLAND WATER ASSOCIATION | Interim Enhanced Surface Water Treatment Rule | 2024-12-01 |
| MIDLAND WATER ASSOCIATION | Interim Enhanced Surface Water Treatment Rule | 2024-11-01 |
| MIDLAND WATER ASSOCIATION | Interim Enhanced Surface Water Treatment Rule | 2024-11-01 |
| MIDLAND WATER ASSOCIATION | Interim Enhanced Surface Water Treatment Rule | 2024-11-01 |
| MARSHLAND WATER ASSOCIATION | Total Haloacetic Acids (HAA5) | 2024-10-01 |
| MARSHLAND WATER ASSOCIATION | Total Haloacetic Acids (HAA5) | 2024-10-01 |
| MARSHLAND WATER ASSOCIATION | Total Haloacetic Acids (HAA5) | 2024-10-01 |
| MIDLAND WATER ASSOCIATION | Interim Enhanced Surface Water Treatment Rule | 2024-10-01 |
| MIDLAND WATER ASSOCIATION | Interim Enhanced Surface Water Treatment Rule | 2024-10-01 |
| MIDLAND WATER ASSOCIATION | Interim Enhanced Surface Water Treatment Rule | 2024-10-01 |
| MARSHLAND WATER ASSOCIATION | Total Haloacetic Acids (HAA5) | 2024-07-01 |
| MARSHLAND WATER ASSOCIATION | Total Haloacetic Acids (HAA5) | 2024-07-01 |
| MARSHLAND WATER ASSOCIATION | Total Haloacetic Acids (HAA5) | 2024-07-01 |
| SWEDETOWN WATER ASSOC | Revised Total Coliform Rule | 2024-04-28 |
| SWEDETOWN WATER ASSOC | Revised Total Coliform Rule | 2024-04-28 |
| MARSHLAND WATER ASSOCIATION | Total Haloacetic Acids (HAA5) | 2024-04-01 |
| MARSHLAND WATER ASSOCIATION | Total Haloacetic Acids (HAA5) | 2024-04-01 |
| MARSHLAND WATER ASSOCIATION | Total Haloacetic Acids (HAA5) | 2024-04-01 |
| MARSHLAND WATER ASSOCIATION | Total Haloacetic Acids (HAA5) | 2024-04-01 |
| MARSHLAND WATER ASSOCIATION | Total Haloacetic Acids (HAA5) | 2024-01-01 |
| MARSHLAND WATER ASSOCIATION | Total Haloacetic Acids (HAA5) | 2024-01-01 |
| MARSHLAND WATER ASSOCIATION | Total Haloacetic Acids (HAA5) | 2024-01-01 |
| MARSHLAND WATER ASSOCIATION | Total Haloacetic Acids (HAA5) | 2024-01-01 |
| MIDLAND WATER ASSOCIATION | Revised Total Coliform Rule | 2023-12-17 |
| MIDLAND WATER ASSOCIATION | Revised Total Coliform Rule | 2023-12-17 |
| MIDLAND WATER ASSOCIATION | Stage 1 Disinfectants and Disinfection Byproducts Rule | 2022-09-16 |
| MIDLAND WATER ASSOCIATION | Stage 1 Disinfectants and Disinfection Byproducts Rule | 2022-09-16 |
| MIDLAND WATER ASSOCIATION | Revised Total Coliform Rule | 2020-12-01 |
| MIDLAND WATER ASSOCIATION | Surface Water Treatment Rule | 2020-12-01 |
| MIDLAND WATER ASSOCIATION | Surface Water Treatment Rule | 2020-12-01 |
| MIDLAND WATER ASSOCIATION | Interim Enhanced Surface Water Treatment Rule | 2016-11-01 |
| MARSHLAND WATER ASSOCIATION | Total Haloacetic Acids (HAA5) | 2016-10-01 |
| MIDLAND WATER ASSOCIATION | Stage 1 Disinfectants and Disinfection Byproducts Rule | 2011-01-01 |
| WESTLAND WATER ASSOCIATION | Surface Water Treatment Rule | 1997-04-01 |
What are Clatskanie's health-based records for?
Clatskanie's health-based violation records carry 5 distinct EPA codes: some name a substance, others the drinking-water rule that was breached. Counts are records on file in the EPA SDWIS extract, not current test results.
| Contaminant | Records | Systems |
|---|---|---|
| Interim Enhanced Surface Water Treatment Rule | 20 | 1 |
| Total Haloacetic Acids (HAA5) | 15 | 1 |
| Revised Total Coliform Rule | 5 | 2 |
| Surface Water Treatment Rule | 3 | 2 |
| Stage 1 Disinfectants and Disinfection Byproducts Rule | 3 | 1 |
TRI Facilities in Clatskanie
| Facility | Total Releases |
|---|---|
| Georgia-Pacific Wauna LLC | 2.5M lbs |
| Pge Beaver Plant & Port Westward Plant | 421.4K lbs |
| Columbia Pacific Bio-Refinery | 0 lbs |
Frequently Asked Questions
What does EPA SDWIS list for drinking water in Clatskanie, Oregon? ▼
How many water violations does Clatskanie have in this EPA extract? ▼
What contaminants were found in Clatskanie water? ▼
How many water systems serve Clatskanie? ▼
Where does Clatskanie get its drinking water? ▼
Are there pollution sources near Clatskanie? ▼
How does Clatskanie compare in Oregon?
Of the 287 Oregon places with at least one community water system on file, Clatskanie ranks #28 by number of systems (7).
Either side of it: Beaverton (7), Boring (7), Hillsboro (7), Roseburg (7)
About This Data
Figures here are the current EPA SDWIS extract joined to the 7 community water systems whose service area lists Clatskanie, ranked against the 287 Oregon places with at least one system on file. Data current as of 2026-08-25.
Water system data comes from the EPA's Safe Drinking Water Information System (SDWIS). PlainEnviro's violation fetch is restricted upstream to records EPA flags as health-based and then joined to active community water systems. Monitoring and reporting violations are not included.
A health-based violation row in this extract is a historical EPA registry entry. It does not describe water delivered today or current compliance status. Many records are later resolved, and public water systems notify customers when required. For current conditions, contact your local water utility or the state drinking water program.
TRI facility data comes from the EPA Toxic Release Inventory. Facilities shown are those that self-report to the TRI program. PlainEnviro presents this data without advocacy framing.
Read our methodology - how this data is sourced, computed, and verified.