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Tap water quality report

St Maries City of

EPA monitoring tested this supplier for 71 contaminants and detected 11. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

71
contaminants tested
11
detected
4,173
people served
8
health-based violations
Idaho rankingsLead in IdahoPFAS in Idaho
Water source
Surface water
Ownership
Local government
Counties served
Benewah

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.

8
health-based violations
27
violations on file
0
still open
ViolationTypeStatusPeriod
TT Health-based Archived 2005-01-01 → 2005-01-31
TT Health-based Archived 2004-05-01 → 2004-05-31
TT Health-based Archived 2004-03-01 → 2004-03-31
MCL Health-based Archived 2001-01-01 → 2001-01-31
TT Health-based Resolved 1993-07-01
TT Health-based Resolved 1993-07-01
TT Health-based Resolved 1993-07-01
MCL Health-based Archived 1991-08-01 → 1991-08-31
MR Monitoring Archived 2006-01-01 → 2006-01-31
MR Monitoring Archived 2006-01-01 → 2006-03-31

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
TTHM
15.745 µg/L 20%
of the EPA limit 80 µg/L
worst single sample: 18 µg/L
12/12 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
20.235 µg/L 34%
of the EPA limit 60 µg/L
worst single sample: 21.5 µg/L
12/12 SYR4 2012–2019
Lead
0.0010 mg/L 6.7%
of the EPA limit 0.0150 mg/L
 10/10 LCR 2025
Barium
59.155 µg/L 3%
of the EPA limit 2000 µg/L
worst single sample: 61.9 µg/L
2/2 SYR4 2018–2019
Combined Radium (-226 And -228)
0.5824 pCi/L 12%
of the EPA limit 5 pCi/L
worst single sample: 0.6000 pCi/L
2/2 SYR4 2013–2018
Gross Alpha, Excl. Radon And U
3.7475 pCi/L 25%
of the EPA limit 15 pCi/L
worst single sample: 3.85 pCi/L
2/2 SYR4 2016–2018
Arsenic
5.01 µg/L 50%
of the EPA limit 10 µg/L
 1/1 SYR4 2018
Chromium
1.47 µg/L 1.5%
of the EPA limit 100 µg/L
 1/2 SYR4 2018–2019
Combined Uranium
3.35 µg/L 11%
of the EPA limit 30 µg/L
 1/2 SYR4 2016–2018
Fluoride
287 µg/L 7.2%
of the EPA limit 4000 µg/L
 1/2 SYR4 2018–2019
Gross Beta Particle Activity
1.7 pCi/L
No EPA limit set
 1/1 SYR4 2016
60 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, TotalAsbestosAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNitrateNitrate-NitriteNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
KINZER, JAIDYN
Phone
208-245-2577
Email
[email protected]

Frequently asked questions about St Maries City of

Is St Maries City of tap water safe to drink?

EPA monitoring detected 11 contaminants in St Maries 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 St Maries City of's water?

EPA monitoring detected TTHM, Total Haloacetic Acids (HAA5), Lead, Barium, Combined Radium (-226 And -228), and others. The full list with the level and data source for each is above.

How many people does St Maries City of serve?

St Maries City of reports serving 4,173 people in Idaho, per its EPA record.

Has St Maries City of had any water quality violations?

The EPA has 27 violations on file for St Maries City of, of which 8 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.