What was found in ZIP 98223
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 | 2921.5 µg/L 29% of the EPA limit 10000 µg/L Main supplier: MARYSVILLE UTILITIES · 88,582 people · 2019
Highest in the ZIP: 4280 µg/L — SEVEN LAKES WATER ASSOCIATION · 5,823 people · 2019 | 4/4 | SYR4 |
| Nitrate-Nitrite | 2920 µg/L 29% of the EPA limit 10000 µg/L Main supplier: MARYSVILLE UTILITIES · 88,582 people · 2019
Highest in the ZIP: 4280 µg/L — SEVEN LAKES WATER ASSOCIATION · 5,823 people · 2019 | 4/4 | SYR4 |
| Fluoride | 110 µg/L 2.8% of the EPA limit 4000 µg/L Main supplier: MARYSVILLE UTILITIES · 88,582 people · 2019
Highest in the ZIP: 550 µg/L — SNO PUD 1 - LAKE STEVENS · 67,710 people · 2016 | 2/4 | SYR4 |
| TTHM | 43.615 µg/L 55% of the EPA limit 80 µg/L Main supplier: MARYSVILLE UTILITIES · 88,582 people · 2019
Highest in the ZIP: 48.22 µg/L — SNO PUD 1 - LAKE STEVENS · 67,710 people · 2019 | 4/4 | SYR4 |
| Copper | 23.25 µg/L 1.8% of the EPA limit 1300 µg/L Main supplier: MARYSVILLE UTILITIES · 88,582 people · 2019
Highest in the ZIP: 48 µg/L — ARLINGTON CITY OF · 29,508 people · 2019 | 4/4 | SYR4 |
| Chloroform | 41.84 µg/L No EPA limit set Main supplier: MARYSVILLE UTILITIES · 88,582 people · 2019
Highest in the ZIP: 46.11 µg/L — SNO PUD 1 - LAKE STEVENS · 67,710 people · 2019 | 3/4 | SYR4 |
| Total Haloacetic Acids (HAA5) | 42.025 µg/L 70% of the EPA limit 60 µg/L Main supplier: MARYSVILLE UTILITIES · 88,582 people · 2019 | 3/4 | SYR4 |
| Trichloroacetic Acid | 24.1 µg/L No EPA limit set Main supplier: MARYSVILLE UTILITIES · 88,582 people · 2019
Highest in the ZIP: 25.065 µg/L — SNO PUD 1 - LAKE STEVENS · 67,710 people · 2019 | 3/4 | SYR4 |
| Dibromoacetic Acid | 22 µg/L No EPA limit set Highest in the ZIP: SNO PUD 1 - LAKE STEVENS · 67,710 people · 2019 | 1/4 | SYR4 |
| Barium | 20.1 µg/L 1% of the EPA limit 2000 µg/L Main supplier: MARYSVILLE UTILITIES · 88,582 people · 2019 | 4/4 | SYR4 |
| Dichloroacetic Acid | 17.98 µg/L No EPA limit set Main supplier: MARYSVILLE UTILITIES · 88,582 people · 2019 | 3/4 | SYR4 |
| Chromium | 5 µg/L 5% of the EPA limit 100 µg/L Main supplier: MARYSVILLE UTILITIES · 88,582 people · 2019
Highest in the ZIP: 9 µg/L — SEVEN LAKES WATER ASSOCIATION · 5,823 people · 2019 | 3/4 | SYR4 |
| Arsenic | 6.4 µg/L 64% of the EPA limit 10 µg/L Main supplier: MARYSVILLE UTILITIES · 88,582 people · 2019
Highest in the ZIP: 8 µg/L — SEVEN LAKES WATER ASSOCIATION · 5,823 people · 2019 | 4/4 | SYR4 |
| Bromodichloromethane | 5.8 µg/L No EPA limit set Main supplier: MARYSVILLE UTILITIES · 88,582 people · 2019 | 4/4 | SYR4 |
| Monochloroacetic Acid | 3.2 µg/L No EPA limit set Main supplier: MARYSVILLE UTILITIES · 88,582 people · 2019
Highest in the ZIP: 5.095 µg/L — SNO PUD 1 - LAKE STEVENS · 67,710 people · 2019 | 3/4 | SYR4 |
| Lead | 1.95 µg/L 13% of the EPA limit 15 µg/L Main supplier: MARYSVILLE UTILITIES · 88,582 people · 2019 | 2/4 | SYR4 |
| Dibromochloromethane | 1.8 µg/L No EPA limit set Main supplier: MARYSVILLE UTILITIES · 88,582 people · 2019
Highest in the ZIP: 1.945 µg/L — ARLINGTON CITY OF · 29,508 people · 2019 | 4/4 | SYR4 |
| Bromoform | 1.785 µg/L No EPA limit set Highest in the ZIP: SEVEN LAKES WATER ASSOCIATION · 5,823 people · 2019 | 2/4 | SYR4 |
| Monobromoacetic Acid | 1.3 µg/L No EPA limit set Main supplier: MARYSVILLE UTILITIES · 88,582 people · 2019 | 1/4 | SYR4 |
| Gross Beta Particle Activity | 0.9290 pCi/L No EPA limit set Main supplier: MARYSVILLE UTILITIES · 88,582 people · 2019
Highest in the ZIP: 1.02 pCi/L — SNO PUD 1 - LAKE STEVENS · 67,710 people · 2015 | 2/4 | SYR4 |
| PFHXS | 0.0049 µg/L No EPA limit set Highest in the ZIP: ARLINGTON CITY OF · 29,508 people · 2023 | 1/4 | UCMR-5 |
| Lead | 0.0020 mg/L 13% of the EPA limit 0.0150 mg/L Main supplier: MARYSVILLE UTILITIES · 88,582 people · 2024
Highest in the ZIP: 0.0032 mg/L — SNO PUD 1 - LAKE STEVENS · 67,710 people · 2024 | 4/4 | 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.
Water suppliers serving ZIP 98223
| Supplier | State | Population served |
|---|---|---|
| MARYSVILLE UTILITIES | WA | 88,582 |
| SNO PUD 1 - LAKE STEVENS | WA | 67,710 |
| ARLINGTON CITY OF | WA | 29,508 |
| SEVEN LAKES WATER ASSOCIATION | WA | 5,823 |
Frequently asked questions about ZIP 98223 tap water
Is the tap water in ZIP 98223 safe to drink?
EPA testing detected 22 contaminants across the water suppliers serving ZIP 98223. 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 98223?
4 public water suppliers report EPA drinking-water monitoring for ZIP 98223. Each is listed above with its population served.
What contaminants are in ZIP 98223's water?
EPA monitoring detected Nitrate, Nitrate-Nitrite, Fluoride, TTHM, Copper, and others across this ZIP's suppliers. The full list with levels and sources is above.