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Tap water quality report

Moscow Water Dept

EPA monitoring tested this supplier for 99 contaminants and detected 8. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

99
contaminants tested
8
detected
26,000
people served
1
health-based violations
Idaho rankingsLead in IdahoPFAS in Idaho
Water source
Ground water
Ownership
Local government
Counties served
Latah

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.

1
health-based violations
77
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Archived 1994-09-01 → 1994-09-30
MR Monitoring Resolved 2025-01-01 → 2025-12-31
MR Monitoring Resolved 2025-01-01 → 2025-12-31
MR Monitoring Resolved 2025-01-01 → 2025-12-31
MR Monitoring Resolved 2025-01-01 → 2025-12-31
MR Monitoring Resolved 2025-01-01 → 2025-12-31
MR Monitoring Resolved 2025-01-01 → 2025-12-31
MR Monitoring Resolved 2021-07-01 → 2021-09-30
MR Monitoring Resolved 2021-07-01 → 2021-09-30
MR Monitoring Resolved 2021-07-01 → 2021-09-30

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
TTHM
4.8465 µg/L 6.1%
of the EPA limit 80 µg/L
worst single sample: 5.42 µg/L
54/68 SYR4 2012–2019
Lead
0.0040 mg/L 27%
of the EPA limit 0.0150 mg/L
 16/16 LCR 2024
Combined Radium (-226 And -228)
1.0545 pCi/L 21%
of the EPA limit 5 pCi/L
worst single sample: 1.11 pCi/L
7/11 SYR4 2013–2018
Barium
175.6 µg/L 8.8%
of the EPA limit 2000 µg/L
worst single sample: 181 µg/L
5/5 SYR4 2018
Fluoride
1356 µg/L 34%
of the EPA limit 4000 µg/L
worst single sample: 1370 µg/L
5/5 SYR4 2018
Total Haloacetic Acids (HAA5)
1.222 µg/L 2%
of the EPA limit 60 µg/L
worst single sample: 1.23 µg/L
2/61 SYR4 2012–2019
Chromium
1.12 µg/L 1.1%
of the EPA limit 100 µg/L
 1/5 SYR4 2018
Gross Alpha, Excl. Radon And U
2.1 pCi/L 14%
of the EPA limit 15 pCi/L
 1/3 SYR4 2016–2019
91 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, TotalArsenicAsbestosAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneCombined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNetfosaaNfdhaNmefosaaNitrateNitriteOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
STEELE, KYLE
Phone
208-883-7133
Email
[email protected]

Frequently asked questions about Moscow Water Dept

Is Moscow Water Dept tap water safe to drink?

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

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

How many people does Moscow Water Dept serve?

Moscow Water Dept reports serving 26,000 people in Idaho, per its EPA record.

Has Moscow Water Dept had any water quality violations?

The EPA has 77 violations on file for Moscow Water Dept, of which 1 is 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.