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Tap water quality report

Ok Water Assn

EPA monitoring tested this supplier for 67 contaminants and detected 8. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

67
contaminants tested
8
detected
140
people served
2
health-based violations
Idaho rankingsLead in IdahoPFAS in Idaho
Water source
Ground water
Ownership
Private
Counties served
Canyon

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.

2
health-based violations
34
violations on file
2
still open
ViolationTypeStatusPeriod
MCL Health-based Archived 1993-06-01 → 1993-06-30
MCL Health-based Archived 1993-04-01 → 1993-04-30
MR Monitoring Unaddressed 2025-12-30
MR Monitoring Unaddressed 2025-12-30
MR Monitoring Archived 2025-01-01 → 2025-12-31
MR Monitoring Archived 2025-01-01 → 2025-12-31
MON Monitoring Resolved 2021-05-01 → 2021-05-31
MON Monitoring Resolved 2021-05-01 → 2021-05-31
MON Monitoring Resolved 2021-05-01 → 2021-05-31
MON Monitoring Resolved 2017-02-01 → 2017-02-28

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 single worst sample on record — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Nitrate
3900 µg/L 39%
of the EPA limit 10000 µg/L
 32/32 SYR4 2012–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 12/12 LCR 2025
Combined Uranium
21 µg/L 70%
of the EPA limit 30 µg/L
 4/4 SYR4 2013–2019
Arsenic
2 µg/L 20%
of the EPA limit 10 µg/L
 2/2 SYR4 2019
Barium
90 µg/L 4.5%
of the EPA limit 2000 µg/L
 2/2 SYR4 2019
Fluoride
420 µg/L 11%
of the EPA limit 4000 µg/L
 2/2 SYR4 2019
Nitrate-Nitrite
3800 µg/L 38%
of the EPA limit 10000 µg/L
 2/2 SYR4 2019
Gross Alpha, Excl. Radon And U
6.4 pCi/L 43%
of the EPA limit 15 pCi/L
 1/1 SYR4 2019
59 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 TetrachlorideChlordaneChromiumCombined Radium (-226 And -228)DichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
JENKINS, ELAINE
Phone
208-465-5236
Email
jjenkinsclan@msn.com

Frequently asked questions about Ok Water Assn

Is Ok Water Assn tap water safe to drink?

EPA monitoring detected 8 contaminants in Ok Water Assn'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 Ok Water Assn's water?

EPA monitoring detected Nitrate, Lead, Combined Uranium, Arsenic, Barium, and others. The full list with the level and data source for each is above.

How many people does Ok Water Assn serve?

Ok Water Assn reports serving 140 people in Idaho, per its EPA record.

Has Ok Water Assn had any water quality violations?

The EPA has 34 violations on file for Ok Water Assn, of which 2 are health-based (a contaminant limit or required treatment was breached) and 2 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.