What was found in Eastsound's water
The level at the city's main supplier, the highest level anywhere in the city, the EPA limit for each, and where every figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Nitrate-Nitrite | 1768 µg/L 18% of the EPA limit 10000 µg/L Main supplier: EASTSOUND WATER USERS ASSOCIATION · 3,711 people · 2013 | 4/10 | SYR4 |
| Nitrate | 1765 µg/L 18% of the EPA limit 10000 µg/L Main supplier: EASTSOUND WATER USERS ASSOCIATION · 3,711 people · 2019 | 6/10 | SYR4 |
| Fluoride | 100 µg/L 2.5% of the EPA limit 4000 µg/L Main supplier: EASTSOUND WATER USERS ASSOCIATION · 3,711 people · 2013
Highest in the city: 650 µg/L — E.L.C. WATER SYSTEM · 36 people · 2012 | 4/10 | SYR4 |
| TTHM | 103.3 µg/L 129% of the EPA limit, at the 95th percentile of samples — 80 µg/L Main supplier: EASTSOUND WATER USERS ASSOCIATION · 3,711 people · 2019 | 9/10 | SYR4 |
| Chloroform | 90.2 µg/L No EPA limit set Main supplier: EASTSOUND WATER USERS ASSOCIATION · 3,711 people · 2019 | 9/10 | SYR4 |
| Barium | 27.25 µg/L 1.4% of the EPA limit 2000 µg/L Main supplier: EASTSOUND WATER USERS ASSOCIATION · 3,711 people · 2013
Highest in the city: 89 µg/L — E.L.C. WATER SYSTEM · 36 people · 2012 | 7/10 | SYR4 |
| Total Haloacetic Acids (HAA5) | 67.25 µg/L 112% of the EPA limit, at the 95th percentile of samples — 60 µg/L Main supplier: EASTSOUND WATER USERS ASSOCIATION · 3,711 people · 2019 | 8/10 | SYR4 |
| Dichloroacetic Acid | 36.18 µg/L No EPA limit set Main supplier: EASTSOUND WATER USERS ASSOCIATION · 3,711 people · 2019 | 8/10 | SYR4 |
| Trichloroacetic Acid | 33.685 µg/L No EPA limit set Main supplier: EASTSOUND WATER USERS ASSOCIATION · 3,711 people · 2019 | 7/10 | SYR4 |
| Dibromochloromethane | 2.695 µg/L No EPA limit set Main supplier: EASTSOUND WATER USERS ASSOCIATION · 3,711 people · 2019
Highest in the city: 30.76 µg/L — CAYOU VALLEY HOMEOWNERS ASSOC · 31 people · 2019 | 9/10 | SYR4 |
| Bromodichloromethane | 13.75 µg/L No EPA limit set Main supplier: EASTSOUND WATER USERS ASSOCIATION · 3,711 people · 2019
Highest in the city: 27.56 µg/L — CAYOU VALLEY HOMEOWNERS ASSOC · 31 people · 2019 | 9/10 | SYR4 |
| Copper | 9 µg/L 0.7% of the EPA limit 1300 µg/L Main supplier: EASTSOUND WATER USERS ASSOCIATION · 3,711 people · 2013
Highest in the city: 27 µg/L — DOE BAY WATER USERS ASSOC · 442 people · 2014 | 6/10 | SYR4 |
| Bromoform | 1.08 µg/L No EPA limit set Main supplier: EASTSOUND WATER USERS ASSOCIATION · 3,711 people · 2019
Highest in the city: 17.94 µg/L — CAYOU VALLEY HOMEOWNERS ASSOC · 31 people · 2019 | 5/10 | SYR4 |
| Monochloroacetic Acid | 5.1 µg/L No EPA limit set Main supplier: EASTSOUND WATER USERS ASSOCIATION · 3,711 people · 2019
Highest in the city: 10.55 µg/L — ROSARIO · 1,426 people · 2019 | 3/10 | SYR4 |
| Dibromoacetic Acid | 1 µg/L No EPA limit set Main supplier: EASTSOUND WATER USERS ASSOCIATION · 3,711 people · 2019
Highest in the city: 6.38 µg/L — CAYOU VALLEY HOMEOWNERS ASSOC · 31 people · 2018 | 6/10 | SYR4 |
| Arsenic | 6 µg/L 60% of the EPA limit 10 µg/L Main supplier: EASTSOUND WATER USERS ASSOCIATION · 3,711 people · 2013 | 1/10 | SYR4 |
| Lead | 2 µg/L 13% of the EPA limit 15 µg/L Main supplier: EASTSOUND WATER USERS ASSOCIATION · 3,711 people · 2013
Highest in the city: 6 µg/L — OLGA WATER USERS INC · 392 people · 2019 | 5/10 | SYR4 |
| Chromium | 2.85 µg/L 2.9% of the EPA limit 100 µg/L Main supplier: EASTSOUND WATER USERS ASSOCIATION · 3,711 people · 2013 | 2/10 | SYR4 |
| Selenium | 2 µg/L 4% of the EPA limit 50 µg/L Main supplier: EASTSOUND WATER USERS ASSOCIATION · 3,711 people · 2013 | 2/10 | SYR4 |
| Monobromoacetic Acid | 1.7255 µg/L No EPA limit set Highest in the city: ROSARIO · 1,426 people · 2019 | 3/10 | SYR4 |
| Gross Beta Particle Activity | 1.22 pCi/L No EPA limit set Main supplier: EASTSOUND WATER USERS ASSOCIATION · 3,711 people · 2015
Highest in the city: 1.38 pCi/L — WEST SOUND WATER ASSOCIATION · 206 people · 2017 | 2/10 | SYR4 |
| Lead | 0.0053 mg/L 35% of the EPA limit 0.0150 mg/L Main supplier: EASTSOUND WATER USERS ASSOCIATION · 3,711 people · 2024
Highest in the city: 0.0103 mg/L — E.L.C. WATER SYSTEM · 36 people · 2023 | 10/10 | LCR |
Each bar shows the measured level as a share of the EPA limit: green is
well under, amber is close to it, red is over. For lead and copper the
limit applies to exactly the 90th-percentile figure shown, so red there
means a real exceedance. For everything else the limit applies to a
running annual average while the figure is the 95th percentile of the
system's samples — over 100% is worth reading, but is not by itself a
violation.
Formal violations are listed separately.
These are the utilities' own EPA-reported results, not a city-wide
average. A detection means the lab measured the
substance — it isn't the same as exceeding a legal limit. Hover a source
tag to see the EPA program and years behind each figure.
Water suppliers serving Eastsound
| Supplier | Population served |
|---|---|
| EASTSOUND WATER USERS ASSOCIATION | 3,711 |
| ROSARIO | 1,426 |
| DOE BAY WATER USERS ASSOC | 442 |
| OLGA WATER USERS INC | 392 |
| WEST SOUND WATER ASSOCIATION | 206 |
| RACCOON POINT WATER SYSTEM | 81 |
| SUNSET RANCH OWNERS ASSOC | 76 |
| ORCAS ISLAND GOLF ESTATES | 57 |
| E.L.C. WATER SYSTEM | 36 |
| CAYOU VALLEY HOMEOWNERS ASSOC | 31 |
Frequently asked questions about Eastsound tap water
Is Eastsound tap water safe to drink?
EPA testing detected 22 contaminants in the water serving Eastsound. A detection isn't the same as a violation — most detected levels are within federal limits. Check the level and source for each contaminant above, and your utility's annual Consumer Confidence Report for the official compliance status.
How many water suppliers serve Eastsound?
10 public water suppliers report drinking-water monitoring for Eastsound, Washington to the EPA. Each is listed above with its population served.
What contaminants are in Eastsound's water?
The contaminants EPA monitoring detected in Eastsound include Nitrate-Nitrite, Nitrate, Fluoride, TTHM, Chloroform. The full list, with the level at the main supplier and the data source, is in the table above.
Where does this data come from?
Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.