What was found in ZIP 83203
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 | 1470 µg/L 15% of the EPA limit 10000 µg/L Main supplier: FORT HALL · 2,850 people · 2019 | 1/1 | SYR4 |
| Nitrate-Nitrite | 1330 µg/L 13% of the EPA limit 10000 µg/L Main supplier: FORT HALL · 2,850 people · 2018 | 1/1 | SYR4 |
| Fluoride | 500 µg/L 13% of the EPA limit 4000 µg/L Main supplier: FORT HALL · 2,850 people · 2018 | 1/1 | SYR4 |
| Copper | 304.75 µg/L 23% of the EPA limit 1300 µg/L Main supplier: FORT HALL · 2,850 people · 2019 | 1/1 | SYR4 |
| Barium | 79.5 µg/L 4% of the EPA limit 2000 µg/L Main supplier: FORT HALL · 2,850 people · 2018 | 1/1 | SYR4 |
| Lithium | 33 µg/L No EPA limit set Main supplier: FORT HALL · 2,850 people · 2025 | 1/1 | UCMR-5 |
| Lead | 21.6 µg/L 144% of the EPA limit, at the 95th percentile of samples — 15 µg/L Main supplier: FORT HALL · 2,850 people · 2019 | 1/1 | SYR4 |
| TTHM | 11.775 µg/L 15% of the EPA limit 80 µg/L Main supplier: FORT HALL · 2,850 people · 2019 | 1/1 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 11.4389 µg/L 191% of the EPA limit, at the 95th percentile of samples — 6 µg/L Main supplier: FORT HALL · 2,850 people · 2017 | 1/1 | SYR4 |
| Arsenic | 7.65 µg/L 77% of the EPA limit 10 µg/L Main supplier: FORT HALL · 2,850 people · 2018 | 1/1 | SYR4 |
| Bromoform | 6.7125 µg/L No EPA limit set Main supplier: FORT HALL · 2,850 people · 2019 | 1/1 | SYR4 |
| Gross Beta Particle Activity | 5.9415 pCi/L No EPA limit set Main supplier: FORT HALL · 2,850 people · 2013 | 1/1 | SYR4 |
| Dibromochloromethane | 4.13 µg/L No EPA limit set Main supplier: FORT HALL · 2,850 people · 2019 | 1/1 | SYR4 |
| Combined Radium (-226 And -228) | 4.03095 pCi/L 81% of the EPA limit 5 pCi/L Main supplier: FORT HALL · 2,850 people · 2018 | 1/1 | SYR4 |
| Dibromoacetic Acid | 1.716 µg/L No EPA limit set Main supplier: FORT HALL · 2,850 people · 2019 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 1.716 µg/L 2.9% of the EPA limit 60 µg/L Main supplier: FORT HALL · 2,850 people · 2019 | 1/1 | SYR4 |
| Bromodichloromethane | 1.024 µg/L No EPA limit set Main supplier: FORT HALL · 2,850 people · 2019 | 1/1 | SYR4 |
| Chromium | 1 µg/L 1% of the EPA limit 100 µg/L Main supplier: FORT HALL · 2,850 people · 2018 | 1/1 | SYR4 |
| Selenium | 1 µg/L 2% of the EPA limit 50 µg/L Main supplier: FORT HALL · 2,850 people · 2018 | 1/1 | SYR4 |
| Toluene | 0.5800 µg/L 0.1% of the EPA limit 1000 µg/L Main supplier: FORT HALL · 2,850 people · 2018 | 1/1 | SYR4 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: FORT HALL · 2,850 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 83203
| Supplier | State | Population served |
|---|---|---|
| FORT HALL | ID | 2,850 |
Frequently asked questions about ZIP 83203 tap water
Is the tap water in ZIP 83203 safe to drink?
EPA testing detected 21 contaminants across the water suppliers serving ZIP 83203. 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 83203?
1 public water supplier report EPA drinking-water monitoring for ZIP 83203. Each is listed above with its population served.
What contaminants are in ZIP 83203's water?
EPA monitoring detected Nitrate, Nitrate-Nitrite, Fluoride, Copper, Barium, and others across this ZIP's suppliers. The full list with levels and sources is above.