What was found in ZIP 98043
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 |
|---|---|---|---|
| TTHM | 61.115 µg/L 76% of the EPA limit 80 µg/L Main supplier: MOUNTLAKE TERRACE CITY OF · 26,402 people · 2019 | 1/1 | SYR4 |
| Chloroform | 58.425 µg/L No EPA limit set Main supplier: MOUNTLAKE TERRACE CITY OF · 26,402 people · 2019 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 47.28 µg/L 79% of the EPA limit 60 µg/L Main supplier: MOUNTLAKE TERRACE CITY OF · 26,402 people · 2019 | 1/1 | SYR4 |
| Trichloroacetic Acid | 28.7 µg/L No EPA limit set Main supplier: MOUNTLAKE TERRACE CITY OF · 26,402 people · 2019 | 1/1 | SYR4 |
| Dichloroacetic Acid | 18.69 µg/L No EPA limit set Main supplier: MOUNTLAKE TERRACE CITY OF · 26,402 people · 2019 | 1/1 | SYR4 |
| Monochloroacetic Acid | 3.8 µg/L No EPA limit set Main supplier: MOUNTLAKE TERRACE CITY OF · 26,402 people · 2019 | 1/1 | SYR4 |
| Bromodichloromethane | 2.7 µg/L No EPA limit set Main supplier: MOUNTLAKE TERRACE CITY OF · 26,402 people · 2019 | 1/1 | SYR4 |
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 98043
| Supplier | State | Population served |
|---|---|---|
| MOUNTLAKE TERRACE CITY OF | WA | 26,402 |
Frequently asked questions about ZIP 98043 tap water
Is the tap water in ZIP 98043 safe to drink?
EPA testing detected 7 contaminants across the water suppliers serving ZIP 98043. 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 98043?
1 public water supplier report EPA drinking-water monitoring for ZIP 98043. Each is listed above with its population served.
What contaminants are in ZIP 98043's water?
EPA monitoring detected TTHM, Chloroform, Total Haloacetic Acids (HAA5), Trichloroacetic Acid, Dichloroacetic Acid, and others across this ZIP's suppliers. The full list with levels and sources is above.