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Tap water quality report

Stock Farm the

EPA monitoring tested this supplier for 72 contaminants and detected 17. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

72
contaminants tested
17
detected
150
people served
26
health-based violations
Montana rankingsLead in MontanaPFAS in Montana
Water source
Ground water
Ownership
Private
Counties served
Ravalli

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.

26
health-based violations
54
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2007-08-01 → 2007-08-31
MCL Health-based Resolved 2007-08-01 → 2007-08-31
MCL Health-based Resolved 2007-08-01 → 2007-08-31
MCL Health-based Resolved 2007-08-01 → 2007-08-31
MCL Health-based Resolved 2007-08-01 → 2007-08-31
MCL Health-based Resolved 2002-08-01 → 2002-08-31
MCL Health-based Resolved 2002-08-01 → 2002-08-31
MCL Health-based Resolved 2002-08-01 → 2002-08-31
MCL Health-based Resolved 2002-08-01 → 2002-08-31
MCL Health-based Resolved 2002-08-01 → 2002-08-31

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 single worst sample on record — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Lead
0.0020 mg/L 13%
of the EPA limit 0.0150 mg/L
 23/23 LCR 2025
Nitrate-Nitrite
1310 µg/L 13%
of the EPA limit 10000 µg/L
 16/16 SYR4 2012–2019
Copper
430 µg/L 33%
of the EPA limit 1300 µg/L
 15/15 SYR4 2012–2018
Lead
10 µg/L 67%
of the EPA limit 15 µg/L
 10/15 SYR4 2012–2018
Bromoform
2.8 µg/L
No EPA limit set
 6/6 SYR4 2013–2019
Dibromochloromethane
5.4 µg/L
No EPA limit set
 6/6 SYR4 2013–2019
TTHM
12 µg/L 15%
of the EPA limit 80 µg/L
 6/6 SYR4 2013–2019
Bromodichloromethane
2.9 µg/L
No EPA limit set
 4/6 SYR4 2013–2019
Arsenic
8 µg/L 80%
of the EPA limit 10 µg/L
 3/3 SYR4 2013–2019
Dibromoacetic Acid
2.1 µg/L
No EPA limit set
 3/3 SYR4 2013–2019
Fluoride
600 µg/L 15%
of the EPA limit 4000 µg/L
 3/3 SYR4 2013–2019
Total Haloacetic Acids (HAA5)
2.1 µg/L 3.5%
of the EPA limit 60 µg/L
 3/3 SYR4 2013–2019
Barium
80 µg/L 4%
of the EPA limit 2000 µg/L
 2/3 SYR4 2013–2019
Chloroform
0.8100 µg/L
No EPA limit set
 2/6 SYR4 2013–2019
Combined Uranium
8 µg/L 27%
of the EPA limit 30 µg/L
 1/1 SYR4 2019
Gross Alpha, Excl. Radon And U
4.9 pCi/L 33%
of the EPA limit 15 pCi/L
 1/1 SYR4 2019
Selenium
1 µg/L 2%
of the EPA limit 50 µg/L
 1/3 SYR4 2013–2019
55 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-Dichloropropane2,4,5-TP2,4-DAntimony, TotalAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumCombined Radium (-226 And -228)DichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDichloroacetic AcidDinosebEndrinEthylbenzeneHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidOxamylPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroacetic AcidTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
THOMAS, BILL
Phone
406-375-1881

Frequently asked questions about Stock Farm the

Is Stock Farm the tap water safe to drink?

EPA monitoring detected 17 contaminants in Stock Farm 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 Stock Farm the's water?

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

How many people does Stock Farm the serve?

Stock Farm the reports serving 150 people in Montana, per its EPA record.

Has Stock Farm the had any water quality violations?

The EPA has 54 violations on file for Stock Farm the, of which 26 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.