← Boise, ID

Tap water quality report

ZIP 83704 — Boise, ID

EPA monitoring across the 2 water suppliers serving ZIP 83704 in Boise, ID detected 31 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.

2
water suppliers
273,978
people served
31
contaminants found

What was found in ZIP 83704

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
4545 µg/L 45%
of the EPA limit 10000 µg/L
Main supplier: VEOLIA WATER IDAHO · 264,978 people · 2019
2/2 SYR4
Nitrate-Nitrite
3980 µg/L 40%
of the EPA limit 10000 µg/L
Main supplier: VEOLIA WATER IDAHO · 264,978 people · 2019
2/2 SYR4
Fluoride
700 µg/L 18%
of the EPA limit 4000 µg/L
Main supplier: VEOLIA WATER IDAHO · 264,978 people · 2019
2/2 SYR4
Barium
253 µg/L 13%
of the EPA limit 2000 µg/L
Main supplier: VEOLIA WATER IDAHO · 264,978 people · 2019
2/2 SYR4
TTHM
50.045 µg/L 63%
of the EPA limit 80 µg/L
Main supplier: VEOLIA WATER IDAHO · 264,978 people · 2019
1/2 SYR4
Chloroform
48 µg/L
No EPA limit set
Main supplier: VEOLIA WATER IDAHO · 264,978 people · 2019
1/2 SYR4
Total Haloacetic Acids (HAA5)
39.13 µg/L 65%
of the EPA limit 60 µg/L
Main supplier: VEOLIA WATER IDAHO · 264,978 people · 2019
1/2 SYR4
Combined Uranium
27.75 µg/L 93%
of the EPA limit 30 µg/L
Main supplier: VEOLIA WATER IDAHO · 264,978 people · 2019
Highest in the ZIP: 31 µg/L — CAPITOL WATER CORP · 9,000 people · 2019
2/2 SYR4
Lithium
24.3 µg/L
No EPA limit set
Main supplier: VEOLIA WATER IDAHO · 264,978 people · 2024
2/2 UCMR-5
Arsenic
16.9 µg/L 169%
of the EPA limit, at the 95th percentile of samples — 10 µg/L
Main supplier: VEOLIA WATER IDAHO · 264,978 people · 2019
2/2 SYR4
Gross Alpha, Excl. Radon And U
16.088 pCi/L 107%
of the EPA limit, at the 95th percentile of samples — 15 pCi/L
Main supplier: VEOLIA WATER IDAHO · 264,978 people · 2019
Highest in the ZIP: 16.095 pCi/L — CAPITOL WATER CORP · 9,000 people · 2019
2/2 SYR4
Chromium
5.35 µg/L 5.4%
of the EPA limit 100 µg/L
Main supplier: VEOLIA WATER IDAHO · 264,978 people · 2019
1/2 SYR4
Bromodichloromethane
4.65 µg/L
No EPA limit set
Main supplier: VEOLIA WATER IDAHO · 264,978 people · 2019
1/2 SYR4
Dibromochloromethane
2.8 µg/L
No EPA limit set
Main supplier: VEOLIA WATER IDAHO · 264,978 people · 2019
1/2 SYR4
Tetrachloroethylene
2.76 µg/L 55%
of the EPA limit 5 µg/L
Main supplier: VEOLIA WATER IDAHO · 264,978 people · 2019
1/2 SYR4
Trichloroethylene
1.72 µg/L 34%
of the EPA limit 5 µg/L
Main supplier: VEOLIA WATER IDAHO · 264,978 people · 2019
Highest in the ZIP: 2.265 µg/L — CAPITOL WATER CORP · 9,000 people · 2019
2/2 SYR4
Combined Radium (-226 And -228)
2.045 pCi/L 41%
of the EPA limit 5 pCi/L
Main supplier: VEOLIA WATER IDAHO · 264,978 people · 2019
2/2 SYR4
1,1-Dichloroethylene
1.032 µg/L 15%
of the EPA limit 7 µg/L
Main supplier: VEOLIA WATER IDAHO · 264,978 people · 2019
1/2 SYR4
Bromoform
0.7860 µg/L
No EPA limit set
Main supplier: VEOLIA WATER IDAHO · 264,978 people · 2019
1/2 SYR4
cis-1,2-Dichloroethylene
0.6000 µg/L 0.9%
of the EPA limit 70 µg/L
Main supplier: VEOLIA WATER IDAHO · 264,978 people · 2019
1/2 SYR4
Di(2-ethylhexyl) Adipate
0.4260 µg/L 0.1%
of the EPA limit 400 µg/L
Main supplier: VEOLIA WATER IDAHO · 264,978 people · 2019
1/2 SYR4
Atrazine
0.1521 µg/L 5.1%
of the EPA limit 3 µg/L
Main supplier: VEOLIA WATER IDAHO · 264,978 people · 2019
1/2 SYR4
PFNA
0.0510 µg/L
No EPA limit set
Highest in the ZIP: CAPITOL WATER CORP · 9,000 people · 2024
1/2 UCMR-5
Ethylene Dibromide
0.0238 µg/L 48%
of the EPA limit 0.0500 µg/L
Main supplier: VEOLIA WATER IDAHO · 264,978 people · 2019
1/2 SYR4
PFOS
0.0098 µg/L
No EPA limit set
Highest in the ZIP: CAPITOL WATER CORP · 9,000 people · 2024
1/2 UCMR-5
PFOA
0.0059 µg/L
No EPA limit set
Highest in the ZIP: CAPITOL WATER CORP · 9,000 people · 2024
1/2 UCMR-5
PFHXS
0.0055 µg/L
No EPA limit set
Highest in the ZIP: CAPITOL WATER CORP · 9,000 people · 2024
1/2 UCMR-5
Pfpea
0.0054 µg/L
No EPA limit set
Highest in the ZIP: CAPITOL WATER CORP · 9,000 people · 2024
1/2 UCMR-5
Pfhxa
0.0052 µg/L
No EPA limit set
Highest in the ZIP: CAPITOL WATER CORP · 9,000 people · 2024
1/2 UCMR-5
PFBS
0.0040 µg/L
No EPA limit set
Highest in the ZIP: CAPITOL WATER CORP · 9,000 people · 2024
1/2 UCMR-5
Lead
0.0020 mg/L 13%
of the EPA limit 0.0150 mg/L
Main supplier: VEOLIA WATER IDAHO · 264,978 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 83704

SupplierStatePopulation served
VEOLIA WATER IDAHO ID 264,978
CAPITOL WATER CORP ID 9,000

Frequently asked questions about ZIP 83704 tap water

Is the tap water in ZIP 83704 safe to drink?

EPA testing detected 31 contaminants across the water suppliers serving ZIP 83704. 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 83704?

2 public water suppliers report EPA drinking-water monitoring for ZIP 83704. Each is listed above with its population served.

What contaminants are in ZIP 83704'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.