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Tap water quality report

Arimo City of

EPA monitoring tested this supplier for 71 contaminants and detected 14. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

71
contaminants tested
14
detected
368
people served
12
health-based violations
Idaho rankingsLead in IdahoPFAS in Idaho
Water source
Ground water
Ownership
Local government
Counties served
Bannock

Compliance record

Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.

12
health-based violations
61
violations on file
4
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2024-08-01 → 2024-08-31
MCL Health-based Resolved 2024-08-01 → 2024-08-31
MCL Health-based Resolved 2024-08-01 → 2024-08-31
MCL Health-based Resolved 2024-08-01 → 2024-08-31
MCL Health-based Archived 2001-06-01 → 2001-06-30
MCL Health-based Archived 2000-10-01 → 2000-10-31
MCL Health-based Archived 1997-12-01 → 1997-12-31
MCL Health-based Archived 1995-10-01 → 1995-10-31
MCL Health-based Archived 1994-12-01 → 1994-12-31
MCL Health-based Archived 1992-07-01 → 1992-07-31

Other contaminants detected

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 this system's samples — over 100% is worth reading, but is not by itself a violation. Where a single sample came in higher than that percentile, it is noted under the bar. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Nitrate
1300 µg/L 13%
of the EPA limit 10000 µg/L
 16/30 SYR4 2012–2019
Lead
0.0140 mg/L 93%
of the EPA limit 0.0150 mg/L
 8/8 LCR 2023
Barium
384.3 µg/L 19%
of the EPA limit 2000 µg/L
worst single sample: 402 µg/L
2/2 SYR4 2019
Gross Alpha, Excl. Radon And U
0.5425 pCi/L 3.6%
of the EPA limit 15 pCi/L
worst single sample: 0.5500 pCi/L
2/2 SYR4 2016
TTHM
2.157 µg/L 2.7%
of the EPA limit 80 µg/L
worst single sample: 2.24 µg/L
2/7 SYR4 2013–2019
Arsenic
1 µg/L 10%
of the EPA limit 10 µg/L
 1/2 SYR4 2019
Copper
36 µg/L 2.8%
of the EPA limit 1300 µg/L
 1/1 SYR4 2017
Combined Radium (-226 And -228)
0.1540 pCi/L 3.1%
of the EPA limit 5 pCi/L
 1/2 SYR4 2016
Combined Uranium
0.4300 µg/L 1.4%
of the EPA limit 30 µg/L
 1/2 SYR4 2016
Fluoride
900 µg/L 23%
of the EPA limit 4000 µg/L
 1/2 SYR4 2019
Lead
15 µg/L 100%
of the EPA limit 15 µg/L
 1/1 SYR4 2017
Nitrate-Nitrite
1300 µg/L 13%
of the EPA limit 10000 µg/L
 1/2 SYR4 2019
Selenium
2 µg/L 4%
of the EPA limit 50 µg/L
 1/2 SYR4 2019
Total Haloacetic Acids (HAA5)
1.04 µg/L 1.7%
of the EPA limit 60 µg/L
 1/5 SYR4 2013–2019
57 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane2,4,5-TP2,4-DAntimony, TotalAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNitriteOxamylPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
WORLTON, PAUL
Phone
208-254-3507
Email
[email protected]

Frequently asked questions about Arimo City of

Is Arimo City of tap water safe to drink?

EPA monitoring detected 14 contaminants in Arimo City of's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.

What contaminants were detected in Arimo City of's water?

EPA monitoring detected Nitrate, Lead, Barium, Gross Alpha, Excl. Radon And U, TTHM, and others. The full list with the level and data source for each is above.

How many people does Arimo City of serve?

Arimo City of reports serving 368 people in Idaho, per its EPA record.

Has Arimo City of had any water quality violations?

The EPA has 61 violations on file for Arimo City of, of which 12 are health-based (a contaminant limit or required treatment was breached) and 4 remain open. The rest are monitoring or reporting failures.

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.