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Tap water quality report

E Shoshone County Water Dist Mullan

EPA monitoring tested this supplier for 20 contaminants and detected 7. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

20
contaminants tested
7
detected
840
people served
5
health-based violations
Idaho rankingsLead in IdahoPFAS in Idaho
Water source
Surface water
Ownership
Local government
Counties served
Shoshone

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
8
violations on file
0
still open
ViolationTypeStatusPeriod
TT Health-based Resolved 2011-07-19
TT Health-based Resolved 2011-07-19
TT Health-based Resolved 2011-07-19
TT Health-based Resolved 1992-01-01 → 2000-03-01
MCL Health-based Archived 1991-08-01 → 1991-08-31
MR Monitoring Archived 1998-08-01 → 1998-08-31
MR Monitoring Resolved 1997-01-01 → 1997-12-31
MR Monitoring Archived 1979-10-01 → 1979-10-31

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
0.0020 mg/L 13%
of the EPA limit 0.0150 mg/L
 8/8 LCR 2025
TTHM
8.897 µg/L 11%
of the EPA limit 80 µg/L
worst single sample: 9.38 µg/L
8/8 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
7.3465 µg/L 12%
of the EPA limit 60 µg/L
worst single sample: 7.35 µg/L
8/8 SYR4 2012–2019
Cadmium
0.3000 µg/L 6%
of the EPA limit 5 µg/L
 6/8 SYR4 2012–2019
Barium
35 µg/L 1.8%
of the EPA limit 2000 µg/L
 1/1 SYR4 2019
Combined Radium (-226 And -228)
0.5000 pCi/L 10%
of the EPA limit 5 pCi/L
 1/1 SYR4 2013
Gross Alpha, Excl. Radon And U
1 pCi/L 6.7%
of the EPA limit 15 pCi/L
 1/1 SYR4 2016
13 contaminants tested, none detected
Antimony, TotalArsenicAsbestosBeryllium, TotalChromiumCombined UraniumFluorideMercuryNitrateNitrate-NitriteNitriteSeleniumThallium, Total

Utility contact

Contact
WHITESIDE, GRANT L
Phone
208-752-1174
Email
[email protected]

Frequently asked questions about E Shoshone County Water Dist Mullan

Is E Shoshone County Water Dist Mullan tap water safe to drink?

EPA monitoring detected 7 contaminants in E Shoshone County Water Dist Mullan'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 E Shoshone County Water Dist Mullan's water?

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

How many people does E Shoshone County Water Dist Mullan serve?

E Shoshone County Water Dist Mullan reports serving 840 people in Idaho, per its EPA record.

Has E Shoshone County Water Dist Mullan had any water quality violations?

The EPA has 8 violations on file for E Shoshone County Water Dist Mullan, 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.