What was found in ZIP 98239
The level at this ZIP's main supplier, the highest level anywhere in it, the EPA limit for each, and where the figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Nitrate | 1928 µg/L 19% of the EPA limit 10000 µg/L Main supplier: COUPEVILLE TOWN OF · 4,142 people · 2019 | 1/1 | SYR4 |
| Nitrate-Nitrite | 1700 µg/L 17% of the EPA limit 10000 µg/L Main supplier: COUPEVILLE TOWN OF · 4,142 people · 2019 | 1/1 | SYR4 |
| Fluoride | 628 µg/L 16% of the EPA limit 4000 µg/L Main supplier: COUPEVILLE TOWN OF · 4,142 people · 2019 | 1/1 | SYR4 |
| Barium | 253 µg/L 13% of the EPA limit 2000 µg/L Main supplier: COUPEVILLE TOWN OF · 4,142 people · 2019 | 1/1 | SYR4 |
| TTHM | 42.02 µg/L 53% of the EPA limit 80 µg/L Main supplier: COUPEVILLE TOWN OF · 4,142 people · 2019 | 1/1 | SYR4 |
| Bromoform | 18.4 µg/L No EPA limit set Main supplier: COUPEVILLE TOWN OF · 4,142 people · 2019 | 1/1 | SYR4 |
| Dibromochloromethane | 16.675 µg/L No EPA limit set Main supplier: COUPEVILLE TOWN OF · 4,142 people · 2019 | 1/1 | SYR4 |
| Gross Beta Particle Activity | 9.982 pCi/L No EPA limit set Main supplier: COUPEVILLE TOWN OF · 4,142 people · 2018 | 1/1 | SYR4 |
| Bromodichloromethane | 8.92 µg/L No EPA limit set Main supplier: COUPEVILLE TOWN OF · 4,142 people · 2019 | 1/1 | SYR4 |
| Arsenic | 8.175 µg/L 82% of the EPA limit 10 µg/L Main supplier: COUPEVILLE TOWN OF · 4,142 people · 2019 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 6.26 µg/L 10% of the EPA limit 60 µg/L Main supplier: COUPEVILLE TOWN OF · 4,142 people · 2019 | 1/1 | SYR4 |
| Dibromoacetic Acid | 4.36 µg/L No EPA limit set Main supplier: COUPEVILLE TOWN OF · 4,142 people · 2019 | 1/1 | SYR4 |
| Chloroform | 3.19 µg/L No EPA limit set Main supplier: COUPEVILLE TOWN OF · 4,142 people · 2019 | 1/1 | SYR4 |
| Dichloroacetic Acid | 1.99 µg/L No EPA limit set Main supplier: COUPEVILLE TOWN OF · 4,142 people · 2019 | 1/1 | SYR4 |
| Monobromoacetic Acid | 1.87 µg/L No EPA limit set Main supplier: COUPEVILLE TOWN OF · 4,142 people · 2019 | 1/1 | SYR4 |
| Lead | 1.5 µg/L 10% of the EPA limit 15 µg/L Main supplier: COUPEVILLE TOWN OF · 4,142 people · 2019 | 1/1 | SYR4 |
| Combined Radium (-226 And -228) | 0.5000 pCi/L 10% of the EPA limit 5 pCi/L Main supplier: COUPEVILLE TOWN OF · 4,142 people · 2012 | 1/1 | SYR4 |
| Pfhxa | 0.0170 µg/L No EPA limit set Main supplier: COUPEVILLE TOWN OF · 4,142 people · 2025 | 1/1 | UCMR-5 |
| Pfpea | 0.0120 µg/L No EPA limit set Main supplier: COUPEVILLE TOWN OF · 4,142 people · 2025 | 1/1 | UCMR-5 |
| PFOA | 0.0098 µg/L No EPA limit set Main supplier: COUPEVILLE TOWN OF · 4,142 people · 2025 | 1/1 | UCMR-5 |
| PFBS | 0.0067 µg/L No EPA limit set Main supplier: COUPEVILLE TOWN OF · 4,142 people · 2025 | 1/1 | UCMR-5 |
| Pfba | 0.0053 µg/L No EPA limit set Main supplier: COUPEVILLE TOWN OF · 4,142 people · 2025 | 1/1 | UCMR-5 |
| PFHXS | 0.0038 µg/L No EPA limit set Main supplier: COUPEVILLE TOWN OF · 4,142 people · 2025 | 1/1 | UCMR-5 |
| Lead | 0.0035 mg/L 23% of the EPA limit 0.0150 mg/L Main supplier: COUPEVILLE TOWN OF · 4,142 people · 2025 | 1/1 | LCR |
| Pfhpa | 0.0033 µg/L No EPA limit set Main supplier: COUPEVILLE TOWN OF · 4,142 people · 2025 | 1/1 | UCMR-5 |
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.
Water suppliers serving ZIP 98239
| Supplier | State | Population served |
|---|---|---|
| COUPEVILLE TOWN OF | WA | 4,142 |
Frequently asked questions about ZIP 98239 tap water
Is the tap water in ZIP 98239 safe to drink?
EPA testing detected 25 contaminants across the water suppliers serving ZIP 98239. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and your utility's annual Consumer Confidence Report for the official status.
Which water suppliers serve ZIP 98239?
1 public water supplier report EPA drinking-water monitoring for ZIP 98239. Each is listed above with its population served.
What contaminants are in ZIP 98239's water?
EPA monitoring detected Nitrate, Nitrate-Nitrite, Fluoride, Barium, TTHM, and others across this ZIP's suppliers. The full list with levels and sources is above.