Is Juliaetta, ID Tap Water Safe? Quality & Contaminants

What was found in Juliaetta's water

The level at the city's main supplier, the highest level anywhere in the city, the EPA limit for each, and where every figure comes from.

Contaminant	Level vs EPA limit	Suppliers	Source
Nitrate	11945 µg/L 119% of the EPA limit, at the 95th percentile of samples — 10000 µg/L Main supplier: JULIAETTA CITY OF · 624 people · 2019	1/1	SYR4
Nitrate-Nitrite	3895 µg/L 39% of the EPA limit 10000 µg/L Main supplier: JULIAETTA CITY OF · 624 people · 2013	1/1	SYR4
Fluoride	244.2 µg/L 6.1% of the EPA limit 4000 µg/L Main supplier: JULIAETTA CITY OF · 624 people · 2019	1/1	SYR4
TTHM	46.385 µg/L 58% of the EPA limit 80 µg/L Main supplier: JULIAETTA CITY OF · 624 people · 2019	1/1	SYR4
Total Haloacetic Acids (HAA5)	42.795 µg/L 71% of the EPA limit 60 µg/L Main supplier: JULIAETTA CITY OF · 624 people · 2019	1/1	SYR4
Barium	35.59 µg/L 1.8% of the EPA limit 2000 µg/L Main supplier: JULIAETTA CITY OF · 624 people · 2019	1/1	SYR4
Picloram	15.24 µg/L 3% of the EPA limit 500 µg/L Main supplier: JULIAETTA CITY OF · 624 people · 2019	1/1	SYR4
Chromium	5.277 µg/L 5.3% of the EPA limit 100 µg/L Main supplier: JULIAETTA CITY OF · 624 people · 2019	1/1	SYR4
Selenium	2.26 µg/L 4.5% of the EPA limit 50 µg/L Main supplier: JULIAETTA CITY OF · 624 people · 2019	1/1	SYR4
Combined Uranium	2.02329 µg/L 6.7% of the EPA limit 30 µg/L Main supplier: JULIAETTA CITY OF · 624 people · 2019	1/1	SYR4
Arsenic	1.3545 µg/L 14% of the EPA limit 10 µg/L Main supplier: JULIAETTA CITY OF · 624 people · 2019	1/1	SYR4
Combined Radium (-226 And -228)	0.4385 pCi/L 8.8% of the EPA limit 5 pCi/L Main supplier: JULIAETTA CITY OF · 624 people · 2019	1/1	SYR4
Gross Alpha, Excl. Radon And U	0.1080 pCi/L 0.7% of the EPA limit 15 pCi/L Main supplier: JULIAETTA CITY OF · 624 people · 2016	1/1	SYR4
Lead	0.0230 mg/L 153% above the EPA limit of 0.0150 mg/L Main supplier: JULIAETTA CITY OF · 624 people · 2025	1/1	LCR
Asbestos	-0.12 MFL -1.6% of the EPA limit 7 MFL Main supplier: JULIAETTA CITY OF · 624 people · 2013	1/1	SYR4

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. These are the utilities' own EPA-reported results, not a city-wide average. A detection means the lab measured the substance — it isn't the same as exceeding a legal limit. Hover a source tag to see the EPA program and years behind each figure.

Water suppliers serving Juliaetta

Supplier	Population served
JULIAETTA CITY OF	624

Frequently asked questions about Juliaetta tap water

Is Juliaetta tap water safe to drink?

EPA testing detected 15 contaminants in the water serving Juliaetta. A detection isn't the same as a violation — most detected levels are within federal limits. Check the level and source for each contaminant above, and your utility's annual Consumer Confidence Report for the official compliance status.

How many water suppliers serve Juliaetta?

1 public water supplier report drinking-water monitoring for Juliaetta, Idaho to the EPA. Each is listed above with its population served.

What contaminants are in Juliaetta's water?

The contaminants EPA monitoring detected in Juliaetta include Nitrate, Nitrate-Nitrite, Fluoride, TTHM, Total Haloacetic Acids (HAA5). The full list, with the level at the main supplier and the data source, is in the table above.

Where does this data come from?

Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.