What was found in ZIP 98002
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 | 3500 µg/L 35% of the EPA limit 10000 µg/L Main supplier: Auburn City of · 107,655 people · 2019 | 1/1 | SYR4 |
| Nitrate-Nitrite | 3500 µg/L 35% of the EPA limit 10000 µg/L Main supplier: Auburn City of · 107,655 people · 2018 | 1/1 | SYR4 |
| Copper | 318 µg/L 24% of the EPA limit 1300 µg/L Main supplier: Auburn City of · 107,655 people · 2018 | 1/1 | SYR4 |
| TTHM | 18.94 µg/L 24% of the EPA limit 80 µg/L Main supplier: Auburn City of · 107,655 people · 2018 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 18.06 µg/L 30% of the EPA limit 60 µg/L Main supplier: Auburn City of · 107,655 people · 2018 | 1/1 | SYR4 |
| Lead | 15.5 µg/L 103% of the EPA limit, at the 95th percentile of samples — 15 µg/L Main supplier: Auburn City of · 107,655 people · 2018 | 1/1 | SYR4 |
| Trichloroacetic Acid | 11.54 µg/L No EPA limit set Main supplier: Auburn City of · 107,655 people · 2019 | 1/1 | SYR4 |
| Chloroform | 10.425 µg/L No EPA limit set Main supplier: Auburn City of · 107,655 people · 2019 | 1/1 | SYR4 |
| Dichloroacetic Acid | 8.025 µg/L No EPA limit set Main supplier: Auburn City of · 107,655 people · 2019 | 1/1 | SYR4 |
| Dibromochloromethane | 5.115 µg/L No EPA limit set Main supplier: Auburn City of · 107,655 people · 2019 | 1/1 | SYR4 |
| Bromodichloromethane | 4.565 µg/L No EPA limit set Main supplier: Auburn City of · 107,655 people · 2019 | 1/1 | SYR4 |
| Arsenic | 2 µg/L 20% of the EPA limit 10 µg/L Main supplier: Auburn City of · 107,655 people · 2018 | 1/1 | SYR4 |
| Dibromoacetic Acid | 1.8 µg/L No EPA limit set Main supplier: Auburn City of · 107,655 people · 2019 | 1/1 | SYR4 |
| Bromoform | 1.6 µg/L No EPA limit set Main supplier: Auburn City of · 107,655 people · 2019 | 1/1 | SYR4 |
| Monobromoacetic Acid | 1.3 µg/L No EPA limit set Main supplier: Auburn City of · 107,655 people · 2019 | 1/1 | SYR4 |
| Cadmium | 0.2900 µg/L 5.8% of the EPA limit 5 µg/L Main supplier: Auburn City of · 107,655 people · 2018 | 1/1 | SYR4 |
| PFBS | 0.0041 µg/L No EPA limit set Main supplier: Auburn City of · 107,655 people · 2025 | 1/1 | UCMR-5 |
| Lead | 0.0022 mg/L 15% of the EPA limit 0.0150 mg/L Main supplier: Auburn City of · 107,655 people · 2024 | 1/1 | 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 98002
| Supplier | State | Population served |
|---|---|---|
| Auburn City of | WA | 107,655 |
Frequently asked questions about ZIP 98002 tap water
Is the tap water in ZIP 98002 safe to drink?
EPA testing detected 18 contaminants across the water suppliers serving ZIP 98002. 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 98002?
1 public water supplier report EPA drinking-water monitoring for ZIP 98002. Each is listed above with its population served.
What contaminants are in ZIP 98002's water?
EPA monitoring detected Nitrate, Nitrate-Nitrite, Copper, TTHM, Total Haloacetic Acids (HAA5), and others across this ZIP's suppliers. The full list with levels and sources is above.