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Tap water quality report

Settlement the

EPA monitoring tested this supplier for 68 contaminants and detected 10. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

68
contaminants tested
10
detected
100
people served
0
health-based violations
Montana rankingsLead in MontanaPFAS in Montana
Water source
Ground water
Ownership
Private
Counties served
Gallatin

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.

0
health-based violations
107
violations on file
0
still open
ViolationTypeStatusPeriod
MR Monitoring Resolved 2014-01-01
MR Monitoring Resolved 2014-01-01
MR Monitoring Resolved 2014-01-01
MR Monitoring Resolved 2014-01-01
MR Monitoring Resolved 2014-01-01
MR Monitoring Resolved 2014-01-01
MR Monitoring Resolved 2014-01-01
MR Monitoring Resolved 2012-06-01
MR Monitoring Resolved 2012-06-01
MR Monitoring Resolved 2012-06-01

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
Nitrate-Nitrite
3480 µg/L 35%
of the EPA limit 10000 µg/L
 16/16 SYR4 2012–2019
Copper
359.8 µg/L 28%
of the EPA limit 1300 µg/L
worst single sample: 378 µg/L
14/15 SYR4 2013–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 13/13 LCR 2025
Combined Uranium
18.44 µg/L 61%
of the EPA limit 30 µg/L
worst single sample: 19.6 µg/L
3/3 SYR4 2013–2019
Arsenic
8.85 µg/L 89%
of the EPA limit 10 µg/L
worst single sample: 9 µg/L
2/2 SYR4 2014–2017
Barium
128.5 µg/L 6.4%
of the EPA limit 2000 µg/L
worst single sample: 130 µg/L
2/2 SYR4 2014–2017
Fluoride
300 µg/L 7.5%
of the EPA limit 4000 µg/L
 2/2 SYR4 2014–2017
Gross Alpha, Excl. Radon And U
20.025 pCi/L 134%
of the EPA limit, at the 95th percentile of samples — 15 pCi/L
worst single sample: 21 pCi/L
2/3 SYR4 2013–2019
Selenium
2.95 µg/L 5.9%
of the EPA limit 50 µg/L
worst single sample: 3 µg/L
2/2 SYR4 2014–2017
Lead
1 µg/L 6.7%
of the EPA limit 15 µg/L
 1/15 SYR4 2013–2019
58 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, TotalBromodichloromethaneBromoformChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneChloroformChromiumCombined Radium (-226 And -228)DichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromochloromethaneDinosebEthylene DibromideEndrinEthylbenzeneHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorOxamylPentachlorophenolPicloramSimazineStyreneTTHMTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
VISSER, RANDY
Phone
406-282-6035

Frequently asked questions about Settlement the

Is Settlement the tap water safe to drink?

EPA monitoring detected 10 contaminants in Settlement the'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 Settlement the's water?

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

How many people does Settlement the serve?

Settlement the reports serving 100 people in Montana, per its EPA record.

Has Settlement the had any water quality violations?

The EPA has 107 violations on file for Settlement the, of which 0 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.