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PFAS
Learn About PFAS
Protecting public health and providing our customers with a safe water supply is the City of Washougal’s top priority, and we currently meet all federal and state requirements for water quality testing. On average we deliver 566 million gallons per year of clean and safe drinking water to more than 18,000 people in our system composed of 83 miles of water mains and service lines.
Washougal, like many communities in Washington and across the nation, is addressing an emerging issue with per-and polyfluoroalkyl (PFAS) substances. In 2024, the city began a new program of testing and reporting for PFAS in drinking water. We will continue to share information about PFAS so that you can make informed decisions.
To view the statewide PFAS Testing Results Dashboard, please visit https://doh.wa.gov/data-and-statistical-reports/washington-tracking-network-wtn/pfas/dashboard
PFAS Overview
Since the 1940s, PFAS has been used around the world in industry and in consumer products such as food packaging, non-stick cookware, waterproof clothing, stain-resistant fabrics, and firefighting foam. These synthetic chemicals can enter the environment and water supplies from multiple sources and do not break down easily, which is why PFAS are sometimes called “forever chemicals.”
New Environmental Protection Agency (EPA) Rule for PFAS
On April 10, 2024, EPA announced the final National Primary Drinking Water Regulation (NPDWR) for six PFAS. Below is a breakdown of key dates for the new EPA rule:
- Public water systems must monitor for these PFAS and have three years to complete initial monitoring (by 2027), followed by ongoing compliance monitoring. Water systems must also provide the public with information on the levels of these PFAS in their drinking water beginning in 2027.
- Public water systems have five years (by 2029) to implement solutions that reduce these PFAS if monitoring shows that drinking water levels exceed these MCLs.
- Beginning in five years (2029), public water systems that have PFAS in drinking water which violates one or more of these MCLs must take action to reduce levels of these PFAS in their drinking water and must provide notification to the public of the violation.
PFAS Detection in Washougal
Drinking water samples collected from the Washougal Water System (ID#93400) sources included detections of the following per- and polyfluoroalkyl substances (PFAS) that were below the State Action Level (SAL) as determined by the Washington State Department of Health; however slightly above the new EPA rule of 4 parts per trillion.
On April 10, 2024, the EPA announced the final National Primary Drinking Water Regulation (NPDWR) for six PFAS. The new limit from the EPA for levels of PFAS in drinking water is set at 4 parts per trillion.
For perspective, 1 part per trillion translates to 1 second in approximately 32,000 years or a single drop of water in 20 Olympic-sized swimming pools. The recommended limits are based on long-term exposure to PFAS throughout a person’s life and represent a conservative level at which no adverse impacts are expected over a lifetime of drinking the water, even in health-sensitive populations.
The City of Washougal’s water system has 6 active wells located at two wellfields across our community. Recent testing for PFAS showed that zero samples exceeded the State Action Level for PFAS contaminants regulated by the Washington State Department of Health. However, based on the new maximum contaminant level (MCL) set by the Environmental Protection Agency (EPA), we do have some levels that are above the unprecedented MCL level. Those results occurred at least one time, on at least one PFAS substance at each of the 6 city wellheads.
EPA RULE – Maximum Contaminant Level (MCL) Table
Compound | Final MCLG | Final MCL (enforceable levels) |
PFOA | Zero | 4.0 parts per trillion (ppt) (also expressed as ng/L) |
PFOS | Zero | 4.0 ppt |
PFHxS | 10 ppt | 10 ppt |
PFNA | 10 ppt | 10 ppt |
HFPO-DA (commonly known as GenX Chemicals) | 10 ppt | 10 ppt |
Mixtures containing two or more of PFHxS, PFNA, HFPO-DA, and PFBS | 1 (unitless) Hazard Index | 1 (unitless) Hazard Index |
City of Washougal Initial Results
| Well lD | PFOA Result | PFOA SAL | PFOA EPA | |
| (ppt) | 10ppt | 4ppt | ||
| Well 1 | *ND | Below | Below | |
| Well 5 | 2.68 | Below | Below | |
| Well 6 | 3.03 | Below | Below | |
| Well 7 | *ND | Below | Below | |
| Well 11 | 3.20 | Below | Below | |
| Well 12 | 3.47 | Below | Below | |
| ppt = parts per trillion (1ppt is equivalent to a single drop of water in 20 Olympic-sized | ||||
| swimming pools, or 1 second in approximately 32,000 years) | ||||
| SAL = Washington State Action Limit | ||||
| *ND = non-detect | ||||
| Well lD | PFHxS | PFHxS SAL | PFHxS EPA | |
| (ppt) | 65ppt | 10ppt | ||
| Well 1 | *ND | Below | Below | |
| Well 5 | *ND | Below | Below | |
| Well 6 | *ND | Below | Below | |
| Well 7 | *ND | Below | Below | |
| Well 11 | *ND | Below | Below | |
| Well 12 | *ND | Below | Below | |
| ppt = parts per trillion (1ppt is equivalent to a single drop of water in 20 Olympic-sized | ||||
| swimming pools, or 1 second in approximately 32,000 years) | ||||
| SAL = Washington State Action Limit | ||||
| *ND = non-detect | ||||
| Well lD | HFPO-DA | HFPO-DA SAL | HFPO-DA EPA | |
| (ppt) | n/a | 10ppt | ||
| Well 1 | *ND | Below | Below | |
| Well 5 | *ND | Below | Below | |
| Well 6 | *ND | Below | Below | |
| Well 7 | *ND | Below | Below | |
| Well 11 | *ND | Below | Below | |
| Well 12 | *ND | Below | Below | |
| ppt = parts per trillion (1ppt is equivalent to a single drop of water in 20 Olympic-sized | ||||
| swimming pools, or 1 second in approximately 32,000 years) | ||||
| SAL = Washington State Action Limit | ||||
| *ND = non-detect | ||||
| MISCELLANEOUS RESULTS | ||||
| Well lD | PFHxA Result | PFHxA SAL | PFHxA EPA | |
| (ppt) | n/a | 560,000ppt | ||
| Well 1 | *ND | Below | Below | |
| Well 5 | *ND | Below | Below | |
| Well 6 | *ND | Below | Below | |
| Well 7 | *ND | Below | Below | |
| Well 11 | *ND | Below | Below | |
| Well 12 | 2.17 | Below | Below | |
| ppt = parts per trillion (1ppt is equivalent to a single drop of water in 20 Olympic-sized | ||||
| swimming pools, or 1 second in approximately 32,000 years) | ||||
| SAL = Washington State Action Limit | ||||
| *ND = non-detect | ||||
| Well lD | PFOS Result | PFOS SAL | PFOS EPA | |
| (ppt) | 15ppt | 4ppt | ||
| Well 1 | *ND | Below | Below | |
| Well 5 | 5.28 | Below | Above | |
| Well 6 | 4.62 | Below | Above | |
| Well 7 | 2.61 | Below | Below | |
| Well 11 | 6.73 | Below | Above | |
| Well 12 | 6.35 | Below | Above | |
| ppt = parts per trillion (1ppt is equivalent to a single drop of water in 20 Olympic-sized | ||||
| swimming pools, or 1 second in approximately 32,000 years) | ||||
| SAL = Washington State Action Limit | ||||
| *ND = non-detect | ||||
| Well lD | PFNA | PFNA SAL | PFNA EPA | |
| (ppt) | 9ppt | 10ppt | ||
| Well 1 | *ND | Below | Below | |
| Well 5 | *ND | Below | Below | |
| Well 6 | *ND | Below | Below | |
| Well 7 | *ND | Below | Below | |
| Well 11 | *ND | Below | Below | |
| Well 12 | *ND | Below | Below | |
| ppt = parts per trillion (1ppt is equivalent to a single drop of water in 20 Olympic-sized | ||||
| swimming pools, or 1 second in approximately 32,000 years) | ||||
| SAL = Washington State Action Limit | ||||
| *ND = non-detect | ||||
| MIXTURES (containing more than 2 or more of PFHxS, PFNA, HFPO-DA, and PFBS) | ||||
| Well lD | PFBS Result | PFBS SAL | PFBS EPA | |
| (ppt) | 345ppt | Hazard Index 1 | ||
| Well 1 | *ND | Below | Below | |
| Well 5 | 2.62 | Below | Below | |
| Well 6 | 2.38 | Below | Below | |
| Well 7 | *ND | Below | Below | |
| Well 11 | 2.85 | Below | Below | |
| Well 12 | 3.15 | Below | Below | |
| COW | ||||
| Hazard Index | ||||
| equals 0.001 | ||||
| ppt = parts per trillion (1ppt is equivalent to a single drop of water in 20 Olympic-sized | ||||
| swimming pools, or 1 second in approximately 32,000 years) | ||||
| SAL = Washington State Action Limit | ||||
| *ND = non-detect | ||||
SUMMARY RESULTS FOR AUGUST 2025
| Well lD | PFOA Result | PFOA SAL | PFOA EPA | |
| (ppt) | 10ppt | 4ppt | ||
| Well 1 | ND* | Below | Below | |
| Well 5 | 2.76 | Below | Below | |
| Well 6 | 2.74 | Below | Below | |
| Well 7 | ND* | Below | Below | |
| Well 11 | 3.7 | Below | Below | |
| Well 12 | 3.13 | Below | Below | |
| ppt = parts per trillion (1ppt is equivalent to a single drop of water in 20 Olympic-sized | ||||
| swimming pools, or 1 second in approximately 32,000 years) | ||||
| SAL = Washington State Action Limit | ||||
| *ND = non-detect | ||||
| Well lD | PFHxS | PFHxS SAL | PFHxS EPA | |
| (ppt) | 65ppt | 10ppt | ||
| Well 1 | *ND | Below | Below | |
| Well 5 | *ND | Below | Below | |
| Well 6 | *ND | Below | Below | |
| Well 7 | *ND | Below | Below | |
| Well 11 | *ND | Below | Below | |
| Well 12 | *ND | Below | Below | |
| ppt = parts per trillion (1ppt is equivalent to a single drop of water in 20 Olympic-sized | ||||
| swimming pools, or 1 second in approximately 32,000 years) | ||||
| SAL = Washington State Action Limit | ||||
| *ND = non-detect | ||||
| Well lD | HFPO-DA | HFPO-DA SAL | HFPO-DA EPA | |
| (ppt) | n/a | 10ppt | ||
| Well 1 | *ND | Below | Below | |
| Well 5 | *ND | Below | Below | |
| Well 6 | *ND | Below | Below | |
| Well 7 | *ND | Below | Below | |
| Well 11 | *ND | Below | Below | |
| Well 12 | *ND | Below | Below | |
| ppt = parts per trillion (1ppt is equivalent to a single drop of water in 20 Olympic-sized | ||||
| swimming pools, or 1 second in approximately 32,000 years) | ||||
| SAL = Washington State Action Limit | ||||
| *ND = non-detect | ||||
| MISCELLANEOUS RESULTS | ||||
| Well lD | PFHxA Result | PFHxA SAL | PFHxA EPA | |
| (ppt) | n/a | 560,000ppt | ||
| Well 1 | ND* | Below | Below | |
| Well 5 | 2.02 | Below | Below | |
| Well 6 | ND* | Below | Below | |
| Well 7 | ND* | Below | Below | |
| Well 11 | 2.49 | Below | Below | |
| Well 12 | 2.10 | Below | Below | |
| ppt = parts per trillion (1ppt is equivalent to a single drop of water in 20 Olympic-sized | ||||
| swimming pools, or 1 second in approximately 32,000 years) | ||||
| SAL = Washington State Action Limit | ||||
| *ND = non-detect | ||||
| Well lD | PFOS Result | PFOS SAL | PFOS EPA | |||
| (ppt) | 15ppt | 4ppt | ||||
| Well 1 | *ND | Below | Below | |||
| Well 5 | 5.30 | Below | Above | |||
| Well 6 | 4.86 | Below | Above | |||
| Well 7 | 3.19 | Below | Below | |||
| Well 11 | 7.47 | Below | Above | |||
| Well 12 | 6.72 | Below | Above | |||
| ppt = parts per trillion (1ppt is equivalent to a single drop of water in 20 Olympic-sized | ||||||
| swimming pools, or 1 second in approximately 32,000 years) | ||||||
| SAL = Washington State Action Limit | ||||||
| *ND = non-detect | ||||||
| Well lD | PFNA | PFNA SAL | PFNA EPA | |||
| (ppt) | 9ppt | 10ppt | ||||
| Well 1 | *ND | Below | Below | |||
| Well 5 | *ND | Below | Below | |||
| Well 6 | *ND | Below | Below | |||
| Well 7 | *ND | Below | Below | |||
| Well 11 | *ND | Below | Below | |||
| Well 12 | *ND | Below | Below | |||
| ppt = parts per trillion (1ppt is equivalent to a single drop of water in 20 Olympic-sized | ||||||
| swimming pools, or 1 second in approximately 32,000 years) | ||||||
| SAL = Washington State Action Limit | ||||||
| *ND = non-detect | ||||||
| MIXTURES (containing more than 2 or more of PFHxS, PFNA, HFPO-DA, and PFBS) | ||||||
| Well lD | PFBS Result | PFBS SAL | PFBS EPA | |||
| (ppt) | 345ppt | Hazard Index 1 | ||||
| Well 1 | ND* | Below | Below | |||
| Well 5 | 3.02 | Below | Below | |||
| Well 6 | 2.79 | Below | Below | |||
| Well 7 | 2.33 | Below | Below | |||
| Well 11 | 2.92 | Below | Below | |||
| Well 12 | 2.99 | Below | Below | |||
| COW | ||||||
| Hazard Index | ||||||
| equals 0.001 | ||||||
| ppt = parts per trillion (1ppt is equivalent to a single drop of water in 20 Olympic-sized | ||||||
| swimming pools, or 1 second in approximately 32,000 years) | ||||||
| SAL = Washington State Action Limit | ||||||
| *ND = non-detect | ||||||
| Well lD | PFOA Result | PFOA SAL | PFOA EPA |
| (ppt) | 10ppt | 4ppt | |
| Well 1 | ND* | Below | Below |
| Well 5 | 3.80 | Below | Below |
| Well 6 | ND* | Below | Below |
| Well 7 | 2.04 | Below | Below |
| Well 11 | 3.44 | Below | Below |
| Well 12 | 3.25 | Below | Below |
| ppt = parts per trillion (1ppt is equivalent to a single drop of water in 20 Olympic-sized | |||
| swimming pools, or 1 second in approximately 32,000 years) | |||
| SAL = Washington State Action Limit | |||
| *ND = non-detect | |||
| Well lD | PFHxS | PFHxS SAL | PFHxS EPA |
| (ppt) | 65ppt | 10ppt | |
| Well 1** | *ND | Below | Below |
| Well 5 | *ND | Below | Below |
| Well 6 | *ND | Below | Below |
| Well 7 | *ND | Below | Below |
| Well 11 | *ND | Below | Below |
| Well 12 | *ND | Below | Below |
| ppt = parts per trillion (1ppt is equivalent to a single drop of water in 20 Olympic-sized | |||
| swimming pools, or 1 second in approximately 32,000 years) | |||
| SAL = Washington State Action Limit | |||
| *ND = non-detect | |||
| Well lD | HFPO-DA | HFPO-DA SAL | HFPO-DA EPA |
| (ppt) | n/a | 10ppt | |
| Well 1** | *ND | Below | Below |
| Well 5 | *ND | Below | Below |
| Well 6 | *ND | Below | Below |
| Well 7 | *ND | Below | Below |
| Well 11 | *ND | Below | Below |
| Well 12 | *ND | Below | Below |
| ppt = parts per trillion (1ppt is equivalent to a single drop of water in 20 Olympic-sized | |||
| swimming pools, or 1 second in approximately 32,000 years) | |||
| SAL = Washington State Action Limit | |||
| *ND = non-detect | |||
| MISCELLANEOUS RESULTS | |||
| Well lD | PFHxA Result | PFHxA SAL | PFHxA EPA |
| (ppt) | n/a | 560,000ppt | |
| Well 1** | ND* | Below | Below |
| Well 5 | 2.10 | Below | Below |
| Well 6 | ND* | Below | Below |
| Well 7 | ND* | Below | Below |
| Well 11 | 2.17 | Below | Below |
| Well 12 | 2.08 | Below | Below |
| ppt = parts per trillion (1ppt is equivalent to a single drop of water in 20 Olympic-sized | |||
| swimming pools, or 1 second in approximately 32,000 years) | |||
| SAL = Washington State Action Limit | |||
| *ND = non-detect | |||
| Well lD | PFOS Result | PFOS SAL | PFOS EPA | |
| (ppt) | 15ppt | 4ppt | ||
| Well 1 | *ND | Below | Below | |
| Well 5 | 3.80 | Below | Below | |
| Well 6 | 4.28 | Below | Above | |
| Well 7 | 5.02 | Below | Above | |
| Well 11 | 7.14 | Below | Above | |
| Well 12 | 6.71 | Below | Above | |
| ppt = parts per trillion (1ppt is equivalent to a single drop of water in 20 Olympic-sized | ||||
| swimming pools, or 1 second in approximately 32,000 years) | ||||
| SAL = Washington State Action Limit | ||||
| *ND = non-detect | ||||
| Well lD | PFNA | PFNA SAL | PFNA EPA | |
| (ppt) | 9ppt | 10ppt | ||
| Well 1** | *ND | Below | Below | |
| Well 5 | *ND | Below | Below | |
| Well 6 | *ND | Below | Below | |
| Well 7 | *ND | Below | Below | |
| Well 11 | *ND | Below | Below | |
| Well 12 | *ND | Below | Below | |
| ppt = parts per trillion (1ppt is equivalent to a single drop of water in 20 Olympic-sized | ||||
| swimming pools, or 1 second in approximately 32,000 years) | ||||
| SAL = Washington State Action Limit | ||||
| *ND = non-detect | ||||
| MIXTURES (containing more than 2 or more of PFHxS, PFNA, HFPO-DA, and PFBS) | ||||
| Well lD | PFBS Result | PFBS SAL | PFBS EPA | |
| (ppt) | 345ppt | Hazard Index 1 | ||
| Well 1** | ND* | Below | Below | |
| Well 5 | 2.83 | Below | Below | |
| Well 6 | 2.11 | Below | Below | |
| Well 7 | 2.67 | Below | Below | |
| Well 11 | 2.82 | Below | Below | |
| Well 12 | 2.92 | Below | Below | |
| COW | ||||
| Hazard Index | ||||
| equals 0.001 | ||||
| ppt = parts per trillion (1ppt is equivalent to a single drop of water in 20 Olympic-sized | ||||
| swimming pools, or 1 second in approximately 32,000 years) | ||||
| SAL = Washington State Action Limit | ||||
| *ND = non-detect | ||||
| Well lD | PFOA Result | PFOA SAL | PFOA EPA | |
| (ppt) | 10ppt | 4ppt | ||
| Well 1 | ND* | Below | Below | |
| Well 5 | ND* | Below | Below | |
| Well 6 | ND* | Below | Below | |
| Well 7 | ND* | Below | Below | |
| Well 11 | 3.43 | Below | Below | |
| Well 12 | 3.76 | Below | Below | |
| ppt = parts per trillion (1ppt is equivalent to a single drop of water in 20 Olympic-sized | ||||
| swimming pools, or 1 second in approximately 32,000 years) | ||||
| SAL = Washington State Action Limit | ||||
| *ND = non-detect | ||||
| Well lD | PFHxS | PFHxS SAL | PFHxS EPA | |
| (ppt) | 65ppt | 10ppt | ||
| Well 1** | *ND | Below | Below | |
| Well 5 | *ND | Below | Below | |
| Well 6 | *ND | Below | Below | |
| Well 7 | *ND | Below | Below | |
| Well 11 | *ND | Below | Below | |
| Well 12 | *ND | Below | Below | |
| ppt = parts per trillion (1ppt is equivalent to a single drop of water in 20 Olympic-sized | ||||
| swimming pools, or 1 second in approximately 32,000 years) | ||||
| SAL = Washington State Action Limit | ||||
| *ND = non-detect | ||||
| Well lD | HFPO-DA | HFPO-DA SAL | HFPO-DA EPA | |
| (ppt) | n/a | 10ppt | ||
| Well 1** | *ND | Below | Below | |
| Well 5 | *ND | Below | Below | |
| Well 6 | *ND | Below | Below | |
| Well 7 | *ND | Below | Below | |
| Well 11 | *ND | Below | Below | |
| Well 12 | *ND | Below | Below | |
| ppt = parts per trillion (1ppt is equivalent to a single drop of water in 20 Olympic-sized | ||||
| swimming pools, or 1 second in approximately 32,000 years) | ||||
| SAL = Washington State Action Limit | ||||
| *ND = non-detect | ||||
| MISCELLANEOUS RESULTS | ||||
| Well lD | PFHxA Result | PFHxA SAL | PFHxA EPA | |
| (ppt) | n/a | 560,000ppt | ||
| Well 1** | ND* | Below | Below | |
| Well 5 | ND* | Below | Below | |
| Well 6 | ND* | Below | Below | |
| Well 7 | ND* | Below | Below | |
| Well 11 | ND* | Below | Below | |
| Well 12 | 2.40 | Below | Below | |
| ppt = parts per trillion (1ppt is equivalent to a single drop of water in 20 Olympic-sized | ||||
| swimming pools, or 1 second in approximately 32,000 years) | ||||
| SAL = Washington State Action Limit | ||||
| *ND = non-detect | ||||
| Well lD | PFOS Result | PFOS SAL | PFOS EPA | |
| (ppt) | 15ppt | 4ppt | ||
| Well 1 | *ND | Below | Below | |
| Well 5 | 3.31 | Below | Below | |
| Well 6 | 2.90 | Below | Below | |
| Well 7 | 2.26 | Below | Below | |
| Well 11 | 7.20 | Below | Above | |
| Well 12 | 7.06 | Below | Above | |
| ppt = parts per trillion (1ppt is equivalent to a single drop of water in 20 Olympic-sized | ||||
| swimming pools, or 1 second in approximately 32,000 years) | ||||
| SAL = Washington State Action Limit | ||||
| *ND = non-detect | ||||
| Well lD | PFNA | PFNA SAL | PFNA EPA | |
| (ppt) | 9ppt | 10ppt | ||
| Well 1** | *ND | Below | Below | |
| Well 5 | *ND | Below | Below | |
| Well 6 | *ND | Below | Below | |
| Well 7 | *ND | Below | Below | |
| Well 11 | *ND | Below | Below | |
| Well 12 | *ND | Below | Below | |
| ppt = parts per trillion (1ppt is equivalent to a single drop of water in 20 Olympic-sized | ||||
| swimming pools, or 1 second in approximately 32,000 years) | ||||
| SAL = Washington State Action Limit | ||||
| *ND = non-detect | ||||
| MIXTURES (containing more than 2 or more of PFHxS, PFNA, HFPO-DA, and PFBS) | ||||
| Well lD | PFBS Result | PFBS SAL | PFBS EPA | |
| (ppt) | 345ppt | Hazard Index 1 | ||
| Well 1** | ND* | Below | Below | |
| Well 5 | ND* | Below | Below | |
| Well 6 | ND* | Below | Below | |
| Well 7 | ND* | Below | Below | |
| Well 11 | 3.39 | Below | Below | |
| Well 12 | 3.92 | Below | Below | |
| COW | ||||
| Hazard Index | ||||
| equals 0.001 | ||||
| ppt = parts per trillion (1ppt is equivalent to a single drop of water in 20 Olympic-sized | ||||
| swimming pools, or 1 second in approximately 32,000 years) | ||||
| SAL = Washington State Action Limit | ||||
| *ND = non-detect | ||||
| Well ID | PFOA Result (ppt) | PFOA SAL 10ppt | PFOA EPA 4ppt |
|---|---|---|---|
| Well 1 | ND* | Below | Below |
| Well 5 | ND* | Below | Below |
| Well 6 | ND* | Below | Below |
| Well 7 | ND* | Below | Below |
| Well 11 | 3.43 | Below | Below |
| Well 12 | 3.76 | Below | Below |
| ppt = parts per trillion (1ppt is equivalent to a single drop of water in 20 Olympic-sized swimming pools, or 1 second in approximately 32,000 years) SAL = Washington State Action Limit *ND = non-detect | |||
| Well ID | PFOS Result (ppt) | PFOS SAL 15ppt | PFOS EPA 4ppt |
|---|---|---|---|
| Well 1 | ND* | Below | Below |
| Well 5 | 3.31 | Below | Below |
| Well 6 | 2.90 | Below | Below |
| Well 7 | 2.26 | Below | Below |
| Well 11 | 7.20 | Below | Above |
| Well 12 | 7.06 | Below | Above |
| ppt = parts per trillion (1ppt is equivalent to a single drop of water in 20 Olympic-sized swimming pools, or 1 second in approximately 32,000 years) SAL = Washington State Action Limit *ND = non-detect | |||
| Well ID | PFHxS (ppt) | PFHxS SAL 65ppt | PFHxS EPA 10ppt |
|---|---|---|---|
| Well 1** | ND* | Below | Below |
| Well 5 | ND* | Below | Below |
| Well 6 | ND* | Below | Below |
| Well 7 | ND* | Below | Below |
| Well 11 | 2.92 | Below | Below |
| Well 12 | 2.92 | Below | Below |
| ppt = parts per trillion (1ppt is equivalent to a single drop of water in 20 Olympic-sized swimming pools, or 1 second in approximately 32,000 years) SAL = Washington State Action Limit *ND = non-detect | |||
| Well ID | PFNA (ppt) | PFNA SAL 9ppt | PFNA EPA 10ppt |
|---|---|---|---|
| Well 1** | ND* | Below | Below |
| Well 5 | ND* | Below | Below |
| Well 6 | ND* | Below | Below |
| Well 7 | ND* | Below | Below |
| Well 11 | ND* | Below | Below |
| Well 12 | ND* | Below | Below |
| ppt = parts per trillion (1ppt is equivalent to a single drop of water in 20 Olympic-sized swimming pools, or 1 second in approximately 32,000 years) SAL = Washington State Action Limit *ND = non-detect | |||
| Well ID | HFPO-DA (ppt) | HFPO-DA SAL N/A | HFPO-DA EPA 10ppt |
|---|---|---|---|
| Well 1** | ND* | Below | Below |
| Well 5 | ND* | Below | Below |
| Well 6 | ND* | Below | Below |
| Well 7 | ND* | Below | Below |
| Well 11 | ND* | Below | Below |
| Well 12 | ND* | Below | Below |
| ppt = parts per trillion (1ppt is equivalent to a single drop of water in 20 Olympic-sized swimming pools, or 1 second in approximately 32,000 years) SAL = Washington State Action Limit *ND = non-detect | |||
MIXTURES (containing more than 2 or more of PFHxS, PFNA, HFPO-DA, and PFBS)
| Well ID | PFBS (ppt) | PFBS SAL 345ppt | PFBS EPA Hazard Index 1 COW Hazard Index equals 0.001 |
|---|---|---|---|
| Well 1** | ND* | Below | Below |
| Well 5 | ND* | Below | Below |
| Well 6 | ND* | Below | Below |
| Well 7 | ND* | Below | Below |
| Well 11 | 3.39 | Below | Below |
| Well 12 | 3.92 | Below | Below |
| ppt = parts per trillion (1ppt is equivalent to a single drop of water in 20 Olympic-sized swimming pools, or 1 second in approximately 32,000 years) SAL = Washington State Action Limit *ND = non-detect | |||
MISCELLANEOUS RESULTS
| Well ID | PFHxA (ppt) | PFHxA SAL N/A | PFHxA EPA 560,000ppt |
|---|---|---|---|
| Well 1** | ND* | Below | Below |
| Well 5 | ND* | Below | Below |
| Well 6 | ND* | Below | Below |
| Well 7 | ND* | Below | Below |
| Well 11 | ND* | Below | Below |
| Well 12 | 2.40 | Below | Below |
| ppt = parts per trillion (1ppt is equivalent to a single drop of water in 20 Olympic-sized swimming pools, or 1 second in approximately 32,000 years) SAL = Washington State Action Limit *ND = non-detect | |||
| Well lD | PFOA Result | PFOA SAL | PFOA EPA | |
| (ppt) | 10ppt | 4ppt | ||
| Well 1 | 2.67 | Below | Below | |
| Well 5 | ND* | Below | Below | |
| Well 6 | ND* | Below | Below | |
| Well 7 | ND* | Below | Below | |
| Well 11 | 3.01 | Below | Below | |
| Well 12 | 3.01 | Below | Below | |
| ppt = parts per trillion (1ppt is equivalent to a single drop of water in 20 Olympic-sized | ||||
| swimming pools, or 1 second in approximately 32,000 years) | ||||
| SAL = Washington State Action Limit | ||||
| *ND = non-detect | ||||
| Well lD | PFHxS | PFHxS SAL | PFHxS EPA | |
| (ppt) | 65ppt | 10ppt | ||
| Well 1** | *ND | Below | Below | |
| Well 5 | *ND | Below | Below | |
| Well 6 | *ND | Below | Below | |
| Well 7 | *ND | Below | Below | |
| Well 11 | 2.92 | Below | Below | |
| Well 12 | 2.92 | Below | Below | |
| ppt = parts per trillion (1ppt is equivalent to a single drop of water in 20 Olympic-sized | ||||
| swimming pools, or 1 second in approximately 32,000 years) | ||||
| SAL = Washington State Action Limit | ||||
| *ND = non-detect | ||||
| Well lD | HFPO-DA | HFPO-DA SAL | HFPO-DA EPA | |
| (ppt) | n/a | 10ppt | ||
| Well 1** | *ND | Below | Below | |
| Well 5 | *ND | Below | Below | |
| Well 6 | *ND | Below | Below | |
| Well 7 | *ND | Below | Below | |
| Well 11 | *ND | Below | Below | |
| Well 12 | *ND | Below | Below | |
| ppt = parts per trillion (1ppt is equivalent to a single drop of water in 20 Olympic-sized | ||||
| swimming pools, or 1 second in approximately 32,000 years) | ||||
| SAL = Washington State Action Limit | ||||
| *ND = non-detect | ||||
| MISCELLANEOUS RESULTS | ||||
| Well lD | PFHxA Result | PFHxA SAL | PFHxA EPA | |
| (ppt) | n/a | 560,000ppt | ||
| Well 1** | ND* | Below | Below | |
| Well 5 | ND* | Below | Below | |
| Well 6 | ND* | Below | Below | |
| Well 7 | ND* | Below | Below | |
| Well 11 | ND* | Below | Below | |
| Well 12 | ND* | Below | Below | |
| ppt = parts per trillion (1ppt is equivalent to a single drop of water in 20 Olympic-sized | ||||
| swimming pools, or 1 second in approximately 32,000 years) | ||||
| SAL = Washington State Action Limit | ||||
| *ND = non-detect | ||||
| Well lD | PFOS Result | PFOS SAL | PFOS EPA | ||
| (ppt) | 15ppt | 4ppt | |||
| Well 1 | 2.34 | Below | Below | ||
| Well 5 | ND* | Below | Below | ||
| Well 6 | ND* | Below | Below | ||
| Well 7 | ND* | Below | Below | ||
| Well 11 | 6.97 | Below | Above | ||
| Well 12 | 6.97 | Below | Above | ||
| ppt = parts per trillion (1ppt is equivalent to a single drop of water in 20 Olympic-sized | |||||
| swimming pools, or 1 second in approximately 32,000 years) | |||||
| SAL = Washington State Action Limit | |||||
| *ND = non-detect | |||||
| Well lD | PFNA | PFNA SAL | PFNA EPA | ||
| (ppt) | 9ppt | 10ppt | |||
| Well 1** | *ND | Below | Below | ||
| Well 5 | *ND | Below | Below | ||
| Well 6 | *ND | Below | Below | ||
| Well 7 | *ND | Below | Below | ||
| Well 11 | *ND | Below | Below | ||
| Well 12 | *ND | Below | Below | ||
| ppt = parts per trillion (1ppt is equivalent to a single drop of water in 20 Olympic-sized | |||||
| swimming pools, or 1 second in approximately 32,000 years) | |||||
| SAL = Washington State Action Limit | |||||
| *ND = non-detect | |||||
| MIXTURES (containing more than 2 or more of PFHxS, PFNA, HFPO-DA, and PFBS) | |||||
| Well lD | PFBS Result | PFBS SAL | PFBS EPA | ||
| (ppt) | 345ppt | Hazard Index 1 | |||
| Well 1** | ND* | Below | Below | ||
| Well 5 | ND* | Below | Below | ||
| Well 6 | ND* | Below | Below | ||
| Well 7 | ND* | Below | Below | ||
| Well 11 | 2.96 | Below | Below | ||
| Well 12 | 2.96 | Below | Below | ||
| COW | |||||
| Hazard Index | |||||
| equals 0.001 | |||||
| ppt = parts per trillion (1ppt is equivalent to a single drop of water in 20 Olympic-sized | |||||
| swimming pools, or 1 second in approximately 32,000 years) | |||||
| SAL = Washington State Action Limit | |||||
| *ND = non-detect | |||||
| Well lD | PFOA Result | PFOA SAL | PFOA EPA | |
| (ppt) | 10ppt | 4ppt | ||
| Well 1 | ND* | Below | Below | |
| Well 5 | ND* | Below | Below | |
| Well 6 | ND* | Below | Below | |
| Well 7 | ND* | Below | Below | |
| Well 11 | 3.73 | Below | Below | |
| Well 12 | 3.73 | Below | Below | |
| ppt = parts per trillion (1ppt is equivalent to a single drop of water in 20 Olympic-sized | ||||
| swimming pools, or 1 second in approximately 32,000 years) | ||||
| SAL = Washington State Action Limit | ||||
| *ND = non-detect | ||||
| Well lD | PFOS Result | PFOS SAL | PFOS EPA | |
| (ppt) | 15ppt | 4ppt | ||
| Well 1 | ND* | Below | Below | |
| Well 5 | 4.08 | Below | Above | |
| Well 6 | 3.56 | Below | Below | |
| Well 7 | 3.03 | Below | Below | |
| Well 11 | 7.50 | Below | Above | |
| Well 12 | 7.50 | Below | Above | |
| ppt = parts per trillion (1ppt is equivalent to a single drop of water in 20 Olympic-sized | ||||
| swimming pools, or 1 second in approximately 32,000 years) | ||||
| SAL = Washington State Action Limit | ||||
| *ND = non-detect | ||||
| Well lD | PFHxS | PFHxS SAL | PFHxS EPA | |
| (ppt) | 65ppt | 10ppt | ||
| Well 1** | *ND | Below | Below | |
| Well 5 | *ND | Below | Below | |
| Well 6 | *ND | Below | Below | |
| Well 7 | *ND | Below | Below | |
| Well 11 | *ND | Below | Below | |
| Well 12 | *ND | Below | Below | |
| ppt = parts per trillion (1ppt is equivalent to a single drop of water in 20 Olympic-sized | ||||
| swimming pools, or 1 second in approximately 32,000 years) | ||||
| SAL = Washington State Action Limit | ||||
| *ND = non-detect | ||||
| Well lD | PFNA | PFNA SAL | PFNA EPA | |
| (ppt) | 9ppt | 10ppt | ||
| Well 1** | *ND | Below | Below | |
| Well 5 | *ND | Below | Below | |
| Well 6 | *ND | Below | Below | |
| Well 7 | *ND | Below | Below | |
| Well 11 | *ND | Below | Below | |
| Well 12 | *ND | Below | Below | |
| ppt = parts per trillion (1ppt is equivalent to a single drop of water in 20 Olympic-sized | ||||
| swimming pools, or 1 second in approximately 32,000 years) | ||||
| SAL = Washington State Action Limit | ||||
| *ND = non-detect | ||||
| Well lD | HFPO-DA | HFPO-DA SAL | HFPO-DA EPA | |
| (ppt) | n/a | 10ppt | ||
| Well 1** | *ND | Below | Below | |
| Well 5 | *ND | Below | Below | |
| Well 6 | *ND | Below | Below | |
| Well 7 | *ND | Below | Below | |
| Well 11 | *ND | Below | Below | |
| Well 12 | *ND | Below | Below | |
| ppt = parts per trillion (1ppt is equivalent to a single drop of water in 20 Olympic-sized | ||||
| swimming pools, or 1 second in approximately 32,000 years) | ||||
| SAL = Washington State Action Limit | ||||
| *ND = non-detect | ||||
| MIXTURES (containing more than 2 or more of PFHxS, PFNA, HFPO-DA, and PFBS) | ||||
| Well lD | PFBS Result | PFBS SAL | PFBS EPA | |
| (ppt) | 345ppt | Hazard Index 1 | ||
| Well 1** | ND* | Below | Below | |
| Well 5 | ND* | Below | Below | |
| Well 6 | ND* | Below | Below | |
| Well 7 | ND* | Below | Below | |
| Well 11 | 2.71 | Below | Below | |
| Well 12 | 2.71 | Below | Below | |
| COW | ||||
| Hazard Index | ||||
| equals 0.001 | ||||
| ppt = parts per trillion (1ppt is equivalent to a single drop of water in 20 Olympic-sized | ||||
| swimming pools, or 1 second in approximately 32,000 years) | ||||
| SAL = Washington State Action Limit | ||||
| *ND = non-detect | ||||
| MISCELLANEOUS RESULTS | ||||
| Well lD | PFHxA Result | PFHxA SAL | PFHxA EPA | |
| (ppt) | n/a | 560,000ppt | ||
| Well 1** | ND* | Below | Below | |
| Well 5 | ND* | Below | Below | |
| Well 6 | ND* | Below | Below | |
| Well 7 | ND* | Below | Below | |
| Well 11 | 2.20 | Below | Below | |
| Well 12 | 2.20 | Below | Below | |
| ppt = parts per trillion (1ppt is equivalent to a single drop of water in 20 Olympic-sized | ||||
| swimming pools, or 1 second in approximately 32,000 years) | ||||
| SAL = Washington State Action Limit | ||||
| *ND = non-detect | ||||
| Well lD | PFOA Result | PFOA SAL | PFOA EPA | |
| (ppt) | 10ppt | 4ppt | ||
| Well 1 | 3.14 | Below | Below | |
| Well 5 | ND* | Below | Below | |
| Well 6 | 2.14 | Below | Below | |
| Well 7 | ND* | Below | Below | |
| Well 11 | 3.88 | Below | Below | |
| Well 12 | 3.88 | Below | Below | |
| ppt = parts per trillion (1ppt is equivalent to a single drop of water in 20 Olympic-sized | ||||
| swimming pools, or 1 second in approximately 32,000 years) | ||||
| SAL = Washington State Action Limit | ||||
| *ND = non-detect | ||||
| Well lD | PFOS Result | PFOS SAL | PFOS EPA | |
| (ppt) | 15ppt | 4ppt | ||
| Well 1 | 6.45 | Below | Above | |
| Well 5 | 2.90 | Below | Below | |
| Well 6 | 4.38 | Below | Above | |
| Well 7 | 4.46 | Below | Above | |
| Well 11 | 7.53 | Below | Above | |
| Well 12 | 7.53 | Below | Above | |
| ppt = parts per trillion (1ppt is equivalent to a single drop of water in 20 Olympic-sized | ||||
| swimming pools, or 1 second in approximately 32,000 years) | ||||
| SAL = Washington State Action Limit | ||||
| *ND = non-detect | ||||
| Well lD | PFHxS | PFHxS SAL | PFHxS EPA | |
| (ppt) | 65ppt | 10ppt | ||
| Well 1** | *ND | Below | Below | |
| Well 5 | *ND | Below | Below | |
| Well 6 | *ND | Below | Below | |
| Well 7 | *ND | Below | Below | |
| Well 11 | *ND | Below | Below | |
| Well 12 | *ND | Below | Below | |
| ppt = parts per trillion (1ppt is equivalent to a single drop of water in 20 Olympic-sized | ||||
| swimming pools, or 1 second in approximately 32,000 years) | ||||
| SAL = Washington State Action Limit | ||||
| *ND = non-detect | ||||
| Well lD | PFNA | PFNA SAL | PFNA EPA | |
| (ppt) | 9ppt | 10ppt | ||
| Well 1** | *ND | Below | Below | |
| Well 5 | *ND | Below | Below | |
| Well 6 | *ND | Below | Below | |
| Well 7 | *ND | Below | Below | |
| Well 11 | *ND | Below | Below | |
| Well 12 | *ND | Below | Below | |
| ppt = parts per trillion (1ppt is equivalent to a single drop of water in 20 Olympic-sized | ||||
| swimming pools, or 1 second in approximately 32,000 years) | ||||
| SAL = Washington State Action Limit | ||||
| *ND = non-detect | ||||
| Well lD | HFPO-DA | HFPO-DA SAL | HFPO-DA EPA | |
| (ppt) | n/a | 10ppt | ||
| Well 1** | *ND | Below | Below | |
| Well 5 | *ND | Below | Below | |
| Well 6 | *ND | Below | Below | |
| Well 7 | *ND | Below | Below | |
| Well 11 | *ND | Below | Below | |
| Well 12 | *ND | Below | Below | |
| ppt = parts per trillion (1ppt is equivalent to a single drop of water in 20 Olympic-sized | ||||
| swimming pools, or 1 second in approximately 32,000 years) | ||||
| SAL = Washington State Action Limit | ||||
| *ND = non-detect | ||||
| MIXTURES (containing more than 2 or more of PFHxS, PFNA, HFPO-DA, and PFBS) | ||||
| Well lD | PFBS Result | PFBS SAL | PFBS EPA | |
| (ppt) | 345ppt | Hazard Index 1 | ||
| Well 1** | 2.16 | Below | Below | |
| Well 5 | ND* | Below | Below | |
| Well 6 | ND* | Below | Below | |
| Well 7 | ND* | Below | Below | |
| Well 11 | 2.83 | Below | Below | |
| Well 12 | 2.83 | Below | Below | |
| COW | ||||
| Hazard Index | ||||
| equals 0.001 | ||||
| ppt = parts per trillion (1ppt is equivalent to a single drop of water in 20 Olympic-sized | ||||
| swimming pools, or 1 second in approximately 32,000 years) | ||||
| SAL = Washington State Action Limit | ||||
| *ND = non-detect | ||||
| MISCELLANEOUS RESULTS | ||||
| Well lD | PFHxA Result | PFHxA SAL | PFHxA EPA | |
| (ppt) | n/a | 560,000ppt | ||
| Well 1** | ND* | Below | Below | |
| Well 5 | ND* | Below | Below | |
| Well 6 | ND* | Below | Below | |
| Well 7 | ND* | Below | Below | |
| Well 11 | 2.42 | Below | Below | |
| Well 12 | 2.42 | Below | Below | |
| ppt = parts per trillion (1ppt is equivalent to a single drop of water in 20 Olympic-sized | ||||
| swimming pools, or 1 second in approximately 32,000 years) | ||||
| SAL = Washington State Action Limit | ||||
| *ND = non-detect | ||||
POTENTIAL HEALTH IMPACTS
There are many different PFAS, and we are still learning about their health impacts in people.
PFOA — Some people who drink water containing PFOA more than the State Action Level over many years may experience problems with their cholesterol, liver, thyroid, or immune system; have high blood pressure during pregnancy; have babies with lower birthweights; and be at higher risk of getting certain types of cancers.
PFOS — Some people who drink water containing PFOS more than the State Action Level over many years may experience problems with their cholesterol, liver, thyroid, kidney, or immune systems; or have children with lower birthweights.
CITY ACTIONS TO PROTECT WATER QUALITY
Work underway includes:
- Testing the water supply: Operations staff continue to test and monitor water quality in compliance with state and federal requirements to ensure a safe water supply.
- Evaluating treatment options: Water quality engineers are evaluating treatment technologies to remove PFAS from the water supply.
- Finding long-term solutions: Expert scientists are investigating potential sources of PFAS and the extent of PFAS in the local groundwater supply.
- Planning for the future: Future costs for PFAS treatment are included in the City’s long-range capital plans.
Reducing costs: The City is pursuing state and federal grants and loans to reduce the impact on ratepayers.
Adjusting operations: Prioritize sources of water supply with lower levels of PFAS to operate before sources with higher levels to reduce concentrations within the distribution system.
Interim measures: The City is exploring potential interim mitigation measures until long-term solutions are in place.
Sharing information: Up-to-date information on PFAS and test results are being shared with all customers and the public so you can make informed decisions.
KEEPING YOU INFORMED
The city is committed to keeping the community informed. We will continue to share actions the City is taking to keep your water safe and provide updates as we learn more about treatment options and receive updates from federal and state authorities. Timely information and PFAS sampling results will be posted at cityofwashougal.us/pfasresults.
STATEWIDE PFAS TESTING RESULTS DASHBOARD
https://doh.wa.gov/data-and-statistical-reports/washington-tracking-network-wtn/pfas/dashboard
- Camas and Vancouver have already completed testing for PFAs. Why has Washougal fallen behind?
-
The City of Washougal has not “fallen behind”. The deadline in which to test for initial levels of PFAS set by EPA and Washington state is December 31, 2025.
- What could the City of Washougal done to prevent this?
-
There are no known ways of preventing this manmade chemical from entering the groundwater system. Lawmakers have begun banning the substances, so further instances or increased levels of substances are not expected.
- What is the city doing to reduce my exposure?
-
The City of Washougal is taking investigative and planning steps to reduce and/or eliminate all PFAS substances from the City of Washougal water system.
- Are you turning off the contaminated wells?
-
Due to the extremely low levels of the PFAS substances, which are below current state levels, and the high demand during peak season, there are no plans to turn off any wells currently.
- I heard there is a class-action lawsuit against PFAS manufacturers. Is Washougal joining this effort?
-
Yes, the City of Washougal has joined class-action lawsuits to help with the mitigation of costs for treating the City of Washougal water.
- How much will it cost to lower or remove PFAS in our water? Will this impact my utility bill?
-
The current cost of treatment is to be determined. Costs vary based on the type of treatment. There is potential for increases to the utility bill, however the City of Washougal is taking all efforts via class-action lawsuits and will be applying for grant funding to mitigate such an increase.
- What are PFAS?
-
PFAS are a group of synthetic chemicals widely used in consumer products and industrial applications since the 1940s, known for their inability to breakdown easily in the environment. PFAS are often referred to as “forever chemicals.”
- What are the health concerns with PFAS?
-
There are many different PFAS, and we are still learning about their health impacts in people.
PFOA
Some people who drink water containing PFOA more than the State Action Level over many years may experience problems with:
- Cholesterol
- Liver
- Thyroid
- Immune system
- High blood pressure during pregnancy
- Have children with lower birthweights
- Higher risk of getting certain types of cancers
PFOS
Some people who drink water containing PFOS more than the State Action Level over many years may experience problems with:
- Cholesterol
- Liver
- Thyroid
- Kidney
- Immune systems
- Have children with lower birthweights
- How are people exposed to PFAS?
-
Human exposure to PFAS is widespread but variable by geography and occupation. PFAS are used in the aerospace, automotive, construction, and electronics industries. Over time, PFAS may leak into the soil, water, and air.
People are most likely exposed to these chemicals by consuming PFAS-contaminated water or food, using products made with PFAS, or breathing air containing PFAS. Because PFAS break down slowly, if at all, people and animals are repeatedly exposed to them, and blood levels of some PFAS can build up over time.
One report by the Centers for Disease Control and Prevention, using data from the National Health and Nutrition Examination Survey (NHANES), found PFAS in the blood of 97% of Americans.1 Another NHANES report suggested blood levels of PFOS and PFOA in people have been reduced since those chemicals were removed from consumer products in the early 2000s. However, new PFAS chemicals have been created and exposure to them is difficult to assess.
NIEHS conducts or funds research that aims to understand more about PFAS exposures and any subsequent health effects.
- Can I test my water for PFAS?
-
You can choose to test the water at your home if you would like, however the City of Washougal is testing each source (well) quarterly and will be posting all results in a timely manner.
- Can you tell me if my water has PFAS that exceeds the required levels based on where I live?
-
Because the water supply at each home is a combination of water from a variety of wells, we are currently unable to provide information on which areas of the city may have detectable levels of PFAS in your tap water.
- What do I do if I think my health has been affected by PFAS?
-
Contact your personal physician.
- Is there a filter I can use at my home? Will the city reimburse me for it?
-
There are currently two types of filters based on current studies that are effective in the reduction of PFAS:
- Granulated Activated Carbon
- Reverse Osmosis
The City of Washougal will not be reimbursing individuals for filters at this time.
- Is the water poisoned?
-
No, the water is not poisoned.
- Can I boil water to eliminate PFAS?
-
Boiling water will not remove PFAS substances.
- Is my drinking water safe?
-
The City of Washougal’s water system has a long history of high quality and safe drinking water. We will continue to research and put in place all safeguards to ensure that the water continues to be safe for generations to come.
Test Results
- All Wells August 2025.pdf
- _Total Running Avg 2024-Current.xlsx
- All Wells May 2025.pdf
- VHJ0133_1 WADOH_Final 10 22 2024 1323.pdf
- VHG0295_1 WADOH_Final 07 30 2024 1247.pdf
- Sources 1, 11 & 13 Report -- May 2024.pdf
- Source 5 Report -- May 2024.pdf
- Sources 1, 5, 6, 7, 11 & 13 Report -- June 2024.pdf
- Sources 6 & 7 Report February 2024.pdf
- All Wells February 2025.pdf
-
Trevor Evers
Public Works Director
-
Ryan Baker
Public Works Operations Superintendent
-
Adam Connolly
Utility Supervisor - Water
-
City of Washougal Provides 4th Quarter 2025 Update on PFAS Levels in Drinking Water
The City of Washougal is committed to keeping our residents informed about drinking water quality. Learn about recent test results for the 4th quarter of 2025. Read on... -
City of Washougal Provides 3rd Quarter 2025 Update on PFAS Levels in Drinking Water
The City of Washougal is committed to keeping our residents informed about drinking water quality. Learn about recent test results for the 3rd quarter of 2025. Read on... -
City of Washougal Provides 2nd Quarter 2025 Update on Pfas Levels in Drinking Water
The City of Washougal is committed to keeping our residents informed about drinking water quality. Recent tests show an increase in PFOS levels in four wells in regard to the EPA’s adopted (effective 2031) limit of 4 parts per trillion (ppt). Read on... -
City of Washougal Provides 1st Quarter 2025 Update on PFAS Levels in Drinking Water
The City of Washougal is dedicated to keeping residents updated on the quality of their drinking water. Recent testing has revealed a rise in PFOS levels in two of the city’s wells, in regard to the EPA’s adopted limit of 4 parts per trillion. Read on... -
City of Washougal Provides 4th Quarter Update on PFAS Levels in Drinking Water
The City of Washougal is dedicated to keeping residents updated on the quality of their drinking water. Recent testing has revealed a slight rise in PFOS levels in two of the city’s wells, in regard to the EPA’s adopted limit of 4 parts per trillion. Read on... -
City of Washougal Provides Update on PFAS Levels in Drinking Water
Recent testing results show a downward trend in PFAS levels, with levels now down to just two wells approaching the EPA’s adopted limit of 4 parts per trillion (ppt). This represents a reduction of 0.53 ppt from the previous sample taken in May 2024. Read on... -
City of Washougal Acts on PFAS Detection in Drinking Water
The City of Washougal has detected trace amounts of per- and polyfluoroalkyl substances (PFAS) in its drinking water supply. Read on...