What was found in ZIP 99352
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 | 3196 µg/L 32% of the EPA limit 10000 µg/L Main supplier: RICHLAND CITY OF · 106,499 people · 2019 | 1/1 | SYR4 |
| Nitrate-Nitrite | 3040 µg/L 30% of the EPA limit 10000 µg/L Main supplier: RICHLAND CITY OF · 106,499 people · 2019 | 1/1 | SYR4 |
| Fluoride | 227.25 µg/L 5.7% of the EPA limit 4000 µg/L Main supplier: RICHLAND CITY OF · 106,499 people · 2019 | 1/1 | SYR4 |
| Barium | 83.11 µg/L 4.2% of the EPA limit 2000 µg/L Main supplier: RICHLAND CITY OF · 106,499 people · 2019 | 1/1 | SYR4 |
| TTHM | 68.353 µg/L 85% of the EPA limit 80 µg/L Main supplier: RICHLAND CITY OF · 106,499 people · 2019 | 1/1 | SYR4 |
| Chloroform | 60.98 µg/L No EPA limit set Main supplier: RICHLAND CITY OF · 106,499 people · 2019 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 51.01 µg/L 85% of the EPA limit 60 µg/L Main supplier: RICHLAND CITY OF · 106,499 people · 2019 | 1/1 | SYR4 |
| Trichloroacetic Acid | 33.29 µg/L No EPA limit set Main supplier: RICHLAND CITY OF · 106,499 people · 2019 | 1/1 | SYR4 |
| Copper | 22.725 µg/L 1.7% of the EPA limit 1300 µg/L Main supplier: RICHLAND CITY OF · 106,499 people · 2019 | 1/1 | SYR4 |
| Dichloroacetic Acid | 21.55 µg/L No EPA limit set Main supplier: RICHLAND CITY OF · 106,499 people · 2019 | 1/1 | SYR4 |
| Dibromochloromethane | 7.828 µg/L No EPA limit set Main supplier: RICHLAND CITY OF · 106,499 people · 2019 | 1/1 | SYR4 |
| Bromodichloromethane | 7.598 µg/L No EPA limit set Main supplier: RICHLAND CITY OF · 106,499 people · 2019 | 1/1 | SYR4 |
| Bromoform | 6.4 µg/L No EPA limit set Main supplier: RICHLAND CITY OF · 106,499 people · 2019 | 1/1 | SYR4 |
| Arsenic | 5.4585 µg/L 55% of the EPA limit 10 µg/L Main supplier: RICHLAND CITY OF · 106,499 people · 2019 | 1/1 | SYR4 |
| Tetrachloroethylene | 2.74 µg/L 55% of the EPA limit 5 µg/L Main supplier: RICHLAND CITY OF · 106,499 people · 2019 | 1/1 | SYR4 |
| Dibromoacetic Acid | 2.28 µg/L No EPA limit set Main supplier: RICHLAND CITY OF · 106,499 people · 2019 | 1/1 | SYR4 |
| Selenium | 1.812 µg/L 3.6% of the EPA limit 50 µg/L Main supplier: RICHLAND CITY OF · 106,499 people · 2019 | 1/1 | SYR4 |
| Chromium | 1.78 µg/L 1.8% of the EPA limit 100 µg/L Main supplier: RICHLAND CITY OF · 106,499 people · 2019 | 1/1 | SYR4 |
| Monochloroacetic Acid | 1.425 µg/L No EPA limit set Main supplier: RICHLAND CITY OF · 106,499 people · 2019 | 1/1 | SYR4 |
| Dalapon | 1.17 µg/L 0.6% of the EPA limit 200 µg/L Main supplier: RICHLAND CITY OF · 106,499 people · 2019 | 1/1 | SYR4 |
| Monobromoacetic Acid | 1.1085 µg/L No EPA limit set Main supplier: RICHLAND CITY OF · 106,499 people · 2019 | 1/1 | SYR4 |
| 1,2,4-Trichlorobenzene | 0.0994 µg/L 0.1% of the EPA limit 70 µg/L Main supplier: RICHLAND CITY OF · 106,499 people · 2019 | 1/1 | SYR4 |
| Xylenes, Total | 0.0700 µg/L 0% of the EPA limit 10000 µg/L Main supplier: RICHLAND CITY OF · 106,499 people · 2019 | 1/1 | SYR4 |
| Chlorobenzene | 0.0200 µg/L 0% of the EPA limit 100 µg/L Main supplier: RICHLAND CITY OF · 106,499 people · 2019 | 1/1 | SYR4 |
| PFOS | 0.0170 µg/L No EPA limit set Main supplier: RICHLAND CITY OF · 106,499 people · 2023 | 1/1 | UCMR-5 |
| Pfpea | 0.0145 µg/L No EPA limit set Main supplier: RICHLAND CITY OF · 106,499 people · 2023 | 1/1 | UCMR-5 |
| Pfhxa | 0.0116 µg/L No EPA limit set Main supplier: RICHLAND CITY OF · 106,499 people · 2023 | 1/1 | UCMR-5 |
| PFOA | 0.0101 µg/L No EPA limit set Main supplier: RICHLAND CITY OF · 106,499 people · 2023 | 1/1 | UCMR-5 |
| PFBS | 0.0089 µg/L No EPA limit set Main supplier: RICHLAND CITY OF · 106,499 people · 2023 | 1/1 | UCMR-5 |
| Pfba | 0.0066 µg/L No EPA limit set Main supplier: RICHLAND CITY OF · 106,499 people · 2023 | 1/1 | UCMR-5 |
| Pfhpa | 0.0058 µg/L No EPA limit set Main supplier: RICHLAND CITY OF · 106,499 people · 2023 | 1/1 | UCMR-5 |
| PFHXS | 0.0054 µg/L No EPA limit set Main supplier: RICHLAND CITY OF · 106,499 people · 2023 | 1/1 | UCMR-5 |
| Lead | 0.0024 mg/L 16% of the EPA limit 0.0150 mg/L Main supplier: RICHLAND CITY OF · 106,499 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 99352
| Supplier | State | Population served |
|---|---|---|
| RICHLAND CITY OF | WA | 106,499 |
Frequently asked questions about ZIP 99352 tap water
Is the tap water in ZIP 99352 safe to drink?
EPA testing detected 33 contaminants across the water suppliers serving ZIP 99352. 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 99352?
1 public water supplier report EPA drinking-water monitoring for ZIP 99352. Each is listed above with its population served.
What contaminants are in ZIP 99352'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.