What was found in ZIP 99337
The highest level seen across the suppliers serving this ZIP, the EPA limit for each, and where the figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Nitrate | 5500 µg/L 55% of the EPA limit 10000 µg/L | 1/1 | SYR4 |
| Nitrate-Nitrite | 3790 µg/L 38% of the EPA limit 10000 µg/L | 1/1 | SYR4 |
| Fluoride | 769 µg/L 19% of the EPA limit 4000 µg/L | 1/1 | SYR4 |
| TTHM | 93.01 µg/L 116% of the EPA limit, in the worst sample — 80 µg/L | 1/1 | SYR4 |
| Barium | 61.7 µg/L 3.1% of the EPA limit 2000 µg/L | 1/1 | SYR4 |
| Chloroform | 56.9 µg/L No EPA limit set | 1/1 | SYR4 |
| Copper | 50 µg/L 3.8% of the EPA limit 1300 µg/L | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 33.4 µg/L 56% of the EPA limit 60 µg/L | 1/1 | SYR4 |
| Dibromochloromethane | 26.9 µg/L No EPA limit set | 1/1 | SYR4 |
| Bromodichloromethane | 25.3 µg/L No EPA limit set | 1/1 | SYR4 |
| Trichloroacetic Acid | 22.2 µg/L No EPA limit set | 1/1 | SYR4 |
| Dichloroacetic Acid | 17 µg/L No EPA limit set | 1/1 | SYR4 |
| Bromoform | 15.6 µg/L No EPA limit set | 1/1 | SYR4 |
| Gross Beta Particle Activity | 11.5 pCi/L No EPA limit set | 1/1 | SYR4 |
| Lithium | 9.38 µg/L No EPA limit set | 1/1 | UCMR-5 |
| Dibromoacetic Acid | 6.04 µg/L No EPA limit set | 1/1 | SYR4 |
| Arsenic | 5 µg/L 50% of the EPA limit 10 µg/L | 1/1 | SYR4 |
| Monochloroacetic Acid | 2.1 µg/L No EPA limit set | 1/1 | SYR4 |
| Lead | 1.61 µg/L 11% of the EPA limit 15 µg/L | 1/1 | SYR4 |
| Monobromoacetic Acid | 1.55 µg/L No EPA limit set | 1/1 | SYR4 |
| Chromium | 1.44 µg/L 1.4% of the EPA limit 100 µg/L | 1/1 | SYR4 |
| Dichloromethane | 0.8300 µg/L 17% of the EPA limit 5 µg/L | 1/1 | SYR4 |
| PFOS | 0.0115 µg/L No EPA limit set | 1/1 | UCMR-5 |
| PFHXS | 0.0106 µg/L No EPA limit set | 1/1 | UCMR-5 |
| Pfpea | 0.0075 µg/L No EPA limit set | 1/1 | UCMR-5 |
| Pfhxa | 0.0065 µg/L No EPA limit set | 1/1 | UCMR-5 |
| PFBS | 0.0064 µg/L No EPA limit set | 1/1 | UCMR-5 |
| PFOA | 0.0046 µg/L No EPA limit set | 1/1 | UCMR-5 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L | 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 single worst sample on
record — over 100% is worth reading, but is not by itself a violation.
Formal violations are listed separately.
Water suppliers serving ZIP 99337
| Supplier | State | Population served |
|---|---|---|
| KENNEWICK CITY OF | WA | 118,164 |
Frequently asked questions about ZIP 99337 tap water
Is the tap water in ZIP 99337 safe to drink?
EPA testing detected 29 contaminants across the water suppliers serving ZIP 99337. 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 99337?
1 public water supplier report EPA drinking-water monitoring for ZIP 99337. Each is listed above with its population served.
What contaminants are in ZIP 99337's water?
EPA monitoring detected Nitrate, Nitrate-Nitrite, Fluoride, TTHM, Barium, and others across this ZIP's suppliers. The full list with levels and sources is above.