What was found in ZIP 83221
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-Nitrite | 3660 µg/L 37% of the EPA limit 10000 µg/L Main supplier: BLACKFOOT CITY OF · 13,224 people · 2019 | 2/2 | SYR4 |
| Nitrate | 3631.5 µg/L 36% of the EPA limit 10000 µg/L Main supplier: BLACKFOOT CITY OF · 13,224 people · 2019 | 2/2 | SYR4 |
| Fluoride | 630 µg/L 16% of the EPA limit 4000 µg/L Main supplier: BLACKFOOT CITY OF · 13,224 people · 2019 | 2/2 | SYR4 |
| Copper | 304.75 µg/L 23% of the EPA limit 1300 µg/L Highest in the ZIP: FORT HALL · 2,850 people · 2019 | 1/2 | SYR4 |
| Barium | 85.2 µg/L 4.3% of the EPA limit 2000 µg/L Main supplier: BLACKFOOT CITY OF · 13,224 people · 2019 | 2/2 | SYR4 |
| Lithium | 48.5 µg/L No EPA limit set Main supplier: BLACKFOOT CITY OF · 13,224 people · 2024 | 2/2 | UCMR-5 |
| Lead | 21.6 µg/L 144% of the EPA limit, at the 95th percentile of samples — 15 µg/L Highest in the ZIP: FORT HALL · 2,850 people · 2019 | 1/2 | SYR4 |
| TTHM | 2.81 µg/L 3.5% of the EPA limit 80 µg/L Main supplier: BLACKFOOT CITY OF · 13,224 people · 2019
Highest in the ZIP: 11.775 µg/L — FORT HALL · 2,850 people · 2019 | 2/2 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 11.4389 µg/L 191% of the EPA limit, at the 95th percentile of samples — 6 µg/L Highest in the ZIP: FORT HALL · 2,850 people · 2017 | 1/2 | SYR4 |
| Arsenic | 3.5 µg/L 35% of the EPA limit 10 µg/L Main supplier: BLACKFOOT CITY OF · 13,224 people · 2019
Highest in the ZIP: 7.65 µg/L — FORT HALL · 2,850 people · 2018 | 2/2 | SYR4 |
| Bromoform | 6.7125 µg/L No EPA limit set Highest in the ZIP: FORT HALL · 2,850 people · 2019 | 1/2 | SYR4 |
| Gross Alpha, Excl. Radon And U | 6.25 pCi/L 42% of the EPA limit 15 pCi/L Main supplier: BLACKFOOT CITY OF · 13,224 people · 2019 | 1/2 | SYR4 |
| Gross Beta Particle Activity | 5.9415 pCi/L No EPA limit set Highest in the ZIP: FORT HALL · 2,850 people · 2013 | 1/2 | SYR4 |
| Dibromochloromethane | 4.13 µg/L No EPA limit set Highest in the ZIP: FORT HALL · 2,850 people · 2019 | 1/2 | SYR4 |
| Combined Radium (-226 And -228) | 1.7736 pCi/L 35% of the EPA limit 5 pCi/L Main supplier: BLACKFOOT CITY OF · 13,224 people · 2019
Highest in the ZIP: 4.03095 pCi/L — FORT HALL · 2,850 people · 2018 | 2/2 | SYR4 |
| Combined Uranium | 2.045 µg/L 6.8% of the EPA limit 30 µg/L Main supplier: BLACKFOOT CITY OF · 13,224 people · 2019 | 1/2 | SYR4 |
| Chromium | 2 µg/L 2% of the EPA limit 100 µg/L Main supplier: BLACKFOOT CITY OF · 13,224 people · 2019 | 2/2 | SYR4 |
| Dibromoacetic Acid | 1.716 µg/L No EPA limit set Highest in the ZIP: FORT HALL · 2,850 people · 2019 | 1/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 1.716 µg/L 2.9% of the EPA limit 60 µg/L Highest in the ZIP: FORT HALL · 2,850 people · 2019 | 1/2 | SYR4 |
| Bromodichloromethane | 1.024 µg/L No EPA limit set Highest in the ZIP: FORT HALL · 2,850 people · 2019 | 1/2 | SYR4 |
| Selenium | 1 µg/L 2% of the EPA limit 50 µg/L Highest in the ZIP: FORT HALL · 2,850 people · 2018 | 1/2 | SYR4 |
| Toluene | 0.5800 µg/L 0.1% of the EPA limit 1000 µg/L Highest in the ZIP: FORT HALL · 2,850 people · 2018 | 1/2 | SYR4 |
| Lead | 0.0030 mg/L 20% of the EPA limit 0.0150 mg/L Main supplier: BLACKFOOT CITY OF · 13,224 people · 2026 | 2/2 | 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 83221
| Supplier | State | Population served |
|---|---|---|
| BLACKFOOT CITY OF | ID | 13,224 |
| FORT HALL | ID | 2,850 |
Frequently asked questions about ZIP 83221 tap water
Is the tap water in ZIP 83221 safe to drink?
EPA testing detected 23 contaminants across the water suppliers serving ZIP 83221. 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 83221?
2 public water suppliers report EPA drinking-water monitoring for ZIP 83221. Each is listed above with its population served.
What contaminants are in ZIP 83221's water?
EPA monitoring detected Nitrate-Nitrite, Nitrate, Fluoride, Copper, Barium, and others across this ZIP's suppliers. The full list with levels and sources is above.