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Tap water quality report

Kooskia Water Dept

EPA monitoring tested this supplier for 97 contaminants and detected 8. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

97
contaminants tested
8
detected
607
people served
5
health-based violations
Idaho rankingsLead in IdahoPFAS in Idaho
Water source
Ground water
Ownership
Local government
Counties served
Idaho

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.

5
health-based violations
13
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Archived 1995-04-01 → 1995-04-30
MCL Health-based Archived 1994-08-01 → 1994-08-31
MCL Health-based Archived 1993-06-01 → 1993-06-30
MCL Health-based Archived 1993-06-01 → 1993-06-30
MCL Health-based Archived 1991-05-01 → 1991-05-31
MR Monitoring Resolved 2022-11-02
MR Monitoring Resolved 2022-11-02
MR Monitoring Resolved 2022-11-02
MR Monitoring Resolved 2016-01-01 → 2016-01-31
MR Monitoring Resolved 2016-01-01 → 2016-01-31

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
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 9/9 LCR 2025
Barium
9.688 µg/L 0.5%
of the EPA limit 2000 µg/L
worst single sample: 10.1 µg/L
2/2 SYR4 2013
Chromium
2.587 µg/L 2.6%
of the EPA limit 100 µg/L
worst single sample: 2.61 µg/L
2/2 SYR4 2013
Combined Radium (-226 And -228)
0.5032 pCi/L 10%
of the EPA limit 5 pCi/L
worst single sample: 0.5150 pCi/L
2/4 SYR4 2013–2019
Fluoride
548.65 µg/L 14%
of the EPA limit 4000 µg/L
worst single sample: 550 µg/L
2/2 SYR4 2013
Lithium
11 µg/L
No EPA limit set
 2/4 UCMR-5 2023
Arsenic
1.67 µg/L 17%
of the EPA limit 10 µg/L
 1/2 SYR4 2013
Selenium
2.07 µg/L 4.1%
of the EPA limit 50 µg/L
 1/2 SYR4 2013
89 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneCombined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNetfosaaNfdhaNmefosaaNitrateNitrate-NitriteNitriteOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSimazineStyreneTTHMTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
MARTINEZ, CARLOS
Phone
208-926-4751
Email
[email protected]

Frequently asked questions about Kooskia Water Dept

Is Kooskia Water Dept tap water safe to drink?

EPA monitoring detected 8 contaminants in Kooskia Water Dept'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 Kooskia Water Dept's water?

EPA monitoring detected Lead, Barium, Chromium, Combined Radium (-226 And -228), Fluoride, and others. The full list with the level and data source for each is above.

How many people does Kooskia Water Dept serve?

Kooskia Water Dept reports serving 607 people in Idaho, per its EPA record.

Has Kooskia Water Dept had any water quality violations?

The EPA has 13 violations on file for Kooskia Water Dept, of which 5 are health-based (a contaminant limit or required treatment was breached) and 0 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.