← Grangeville, ID

Tap water quality report

ZIP 83530 — Grangeville, ID

EPA monitoring across the 1 water supplier serving ZIP 83530 in Grangeville, ID detected 12 contaminants. A detection doesn't automatically mean the water is unsafe — see the level at the main supplier below, with the EPA limit for each.

1
water supplier
3,151
people served
12
contaminants found

What was found in ZIP 83530

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.

ContaminantLevel vs EPA limitSuppliersSource
Nitrate
2390 µg/L 24%
of the EPA limit 10000 µg/L
Main supplier: GRANGEVILLE WATER DEPT · 3,151 people · 2019
1/1 SYR4
Fluoride
491.1 µg/L 12%
of the EPA limit 4000 µg/L
Main supplier: GRANGEVILLE WATER DEPT · 3,151 people · 2019
1/1 SYR4
Barium
27.85 µg/L 1.4%
of the EPA limit 2000 µg/L
Main supplier: GRANGEVILLE WATER DEPT · 3,151 people · 2019
1/1 SYR4
Lithium
15 µg/L
No EPA limit set
Main supplier: GRANGEVILLE WATER DEPT · 3,151 people · 2025
1/1 UCMR-5
Chromium
12.669 µg/L 13%
of the EPA limit 100 µg/L
Main supplier: GRANGEVILLE WATER DEPT · 3,151 people · 2019
1/1 SYR4
TTHM
3.2445 µg/L 4.1%
of the EPA limit 80 µg/L
Main supplier: GRANGEVILLE WATER DEPT · 3,151 people · 2019
1/1 SYR4
Tetrachloroethylene
1.76 µg/L 35%
of the EPA limit 5 µg/L
Main supplier: GRANGEVILLE WATER DEPT · 3,151 people · 2019
1/1 SYR4
Combined Uranium
1.04 µg/L 3.5%
of the EPA limit 30 µg/L
Main supplier: GRANGEVILLE WATER DEPT · 3,151 people · 2019
1/1 SYR4
Combined Radium (-226 And -228)
0.9918 pCi/L 20%
of the EPA limit 5 pCi/L
Main supplier: GRANGEVILLE WATER DEPT · 3,151 people · 2019
1/1 SYR4
Gross Alpha, Excl. Radon And U
0.8810 pCi/L 5.9%
of the EPA limit 15 pCi/L
Main supplier: GRANGEVILLE WATER DEPT · 3,151 people · 2013
1/1 SYR4
Toluene
0.8600 µg/L 0.1%
of the EPA limit 1000 µg/L
Main supplier: GRANGEVILLE WATER DEPT · 3,151 people · 2019
1/1 SYR4
Lead
0.0020 mg/L 13%
of the EPA limit 0.0150 mg/L
Main supplier: GRANGEVILLE WATER DEPT · 3,151 people · 2025
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 83530

SupplierStatePopulation served
GRANGEVILLE WATER DEPT ID 3,151

Frequently asked questions about ZIP 83530 tap water

Is the tap water in ZIP 83530 safe to drink?

EPA testing detected 12 contaminants across the water suppliers serving ZIP 83530. 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 83530?

1 public water supplier report EPA drinking-water monitoring for ZIP 83530. Each is listed above with its population served.

What contaminants are in ZIP 83530's water?

EPA monitoring detected Nitrate, Fluoride, Barium, Lithium, Chromium, and others across this ZIP's suppliers. The full list with levels and sources is above.