What was found in ZIP 86021
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 |
|---|---|---|---|
| Barium | 807.37 µg/L 40% of the EPA limit 2000 µg/L Main supplier: HILDALE - COLORADO CITY · 6,100 people · 2019 | 1/1 | SYR4 |
| Nitrate | 800 µg/L 8% of the EPA limit 10000 µg/L Main supplier: HILDALE - COLORADO CITY · 6,100 people · 2019 | 1/1 | SYR4 |
| Copper | 755.21 µg/L 58% of the EPA limit 1300 µg/L Main supplier: HILDALE - COLORADO CITY · 6,100 people · 2018 | 1/1 | SYR4 |
| Nitrate-Nitrite | 515 µg/L 5.1% of the EPA limit 10000 µg/L Main supplier: HILDALE - COLORADO CITY · 6,100 people · 2018 | 1/1 | SYR4 |
| Fluoride | 480 µg/L 12% of the EPA limit 4000 µg/L Main supplier: HILDALE - COLORADO CITY · 6,100 people · 2019 | 1/1 | SYR4 |
| Lithium | 71 µg/L No EPA limit set Main supplier: HILDALE - COLORADO CITY · 6,100 people · 2024 | 1/1 | UCMR-5 |
| TTHM | 54.925 µg/L 69% of the EPA limit 80 µg/L Main supplier: HILDALE - COLORADO CITY · 6,100 people · 2019 | 1/1 | SYR4 |
| Bromoform | 35.675 µg/L No EPA limit set Main supplier: HILDALE - COLORADO CITY · 6,100 people · 2019 | 1/1 | SYR4 |
| Gross Beta Particle Activity | 25.9 pCi/L No EPA limit set Main supplier: HILDALE - COLORADO CITY · 6,100 people · 2019 | 1/1 | SYR4 |
| Combined Radium (-226 And -228) | 14.965 pCi/L 299% of the EPA limit, at the 95th percentile of samples — 5 pCi/L Main supplier: HILDALE - COLORADO CITY · 6,100 people · 2019 | 1/1 | SYR4 |
| Gross Alpha, Excl. Radon And U | 14.35 pCi/L 96% of the EPA limit 15 pCi/L Main supplier: HILDALE - COLORADO CITY · 6,100 people · 2019 | 1/1 | SYR4 |
| Dibromochloromethane | 13.305 µg/L No EPA limit set Main supplier: HILDALE - COLORADO CITY · 6,100 people · 2019 | 1/1 | SYR4 |
| Dibromoacetic Acid | 11.275 µg/L No EPA limit set Main supplier: HILDALE - COLORADO CITY · 6,100 people · 2019 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 11.265 µg/L 19% of the EPA limit 60 µg/L Main supplier: HILDALE - COLORADO CITY · 6,100 people · 2019 | 1/1 | SYR4 |
| Selenium | 9.095 µg/L 18% of the EPA limit 50 µg/L Main supplier: HILDALE - COLORADO CITY · 6,100 people · 2019 | 1/1 | SYR4 |
| Lead | 8.203 µg/L 55% of the EPA limit 15 µg/L Main supplier: HILDALE - COLORADO CITY · 6,100 people · 2018 | 1/1 | SYR4 |
| Arsenic | 7.85 µg/L 78% of the EPA limit 10 µg/L Main supplier: HILDALE - COLORADO CITY · 6,100 people · 2019 | 1/1 | SYR4 |
| Chromium | 5 µg/L 5% of the EPA limit 100 µg/L Main supplier: HILDALE - COLORADO CITY · 6,100 people · 2019 | 1/1 | SYR4 |
| Bromodichloromethane | 2.75 µg/L No EPA limit set Main supplier: HILDALE - COLORADO CITY · 6,100 people · 2019 | 1/1 | SYR4 |
| Cyanide | 2 µg/L 1% of the EPA limit 200 µg/L Main supplier: HILDALE - COLORADO CITY · 6,100 people · 2019 | 1/1 | SYR4 |
| Trichloroacetic Acid | 1.3 µg/L No EPA limit set Main supplier: HILDALE - COLORADO CITY · 6,100 people · 2019 | 1/1 | SYR4 |
| Chloroform | 0.6000 µg/L No EPA limit set Main supplier: HILDALE - COLORADO CITY · 6,100 people · 2019 | 1/1 | SYR4 |
| PFOS | 0.0260 µg/L No EPA limit set Main supplier: HILDALE - COLORADO CITY · 6,100 people · 2024 | 1/1 | UCMR-5 |
| PFHXS | 0.0220 µg/L No EPA limit set Main supplier: HILDALE - COLORADO CITY · 6,100 people · 2024 | 1/1 | UCMR-5 |
| PFBS | 0.0170 µg/L No EPA limit set Main supplier: HILDALE - COLORADO CITY · 6,100 people · 2024 | 1/1 | UCMR-5 |
| Pfpes | 0.0130 µg/L No EPA limit set Main supplier: HILDALE - COLORADO CITY · 6,100 people · 2024 | 1/1 | UCMR-5 |
| Pfhxa | 0.0120 µg/L No EPA limit set Main supplier: HILDALE - COLORADO CITY · 6,100 people · 2024 | 1/1 | UCMR-5 |
| Pfpea | 0.0043 µg/L No EPA limit set Main supplier: HILDALE - COLORADO CITY · 6,100 people · 2024 | 1/1 | UCMR-5 |
| Lead | 0.0010 mg/L 6.7% of the EPA limit 0.0150 mg/L Main supplier: HILDALE - COLORADO CITY · 6,100 people · 2023 | 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 86021
| Supplier | State | Population served |
|---|---|---|
| HILDALE - COLORADO CITY | UT | 6,100 |
Frequently asked questions about ZIP 86021 tap water
Is the tap water in ZIP 86021 safe to drink?
EPA testing detected 29 contaminants across the water suppliers serving ZIP 86021. 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 86021?
1 public water supplier report EPA drinking-water monitoring for ZIP 86021. Each is listed above with its population served.
What contaminants are in ZIP 86021's water?
EPA monitoring detected Barium, Nitrate, Copper, Nitrate-Nitrite, Fluoride, and others across this ZIP's suppliers. The full list with levels and sources is above.