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Tap water quality report

Hildreth Subdivision No 2

EPA monitoring tested this supplier for 75 contaminants and detected 11. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

75
contaminants tested
11
detected
300
people served
0
health-based violations
Montana rankingsLead in MontanaPFAS in Montana
Water source
Ground water
Ownership
Private
Counties served
Beaverhead

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
262
violations on file
0
still open
ViolationTypeStatusPeriod
Other Monitoring Resolved 2023-07-01
Other Monitoring Resolved 2023-07-01
MR Monitoring Resolved 2023-06-14
MR Monitoring Resolved 2023-06-14
MR Monitoring Resolved 2023-06-14
Other Monitoring Resolved 2019-07-01
Other Monitoring Resolved 2019-07-01
MR Monitoring Resolved 2013-09-01 → 2013-09-30
MR Monitoring Resolved 2013-09-01 → 2013-09-30
MR Monitoring Resolved 2013-09-01 → 2013-09-30

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
Nitrate-Nitrite
3230 µg/L 32%
of the EPA limit 10000 µg/L
 20/20 SYR4 2012–2019
Copper
1171 µg/L 90%
of the EPA limit 1300 µg/L
worst single sample: 1290 µg/L
15/15 SYR4 2013–2019
Lead
0.0030 mg/L 20%
of the EPA limit 0.0150 mg/L
 13/13 LCR 2025
Lead
2 µg/L 13%
of the EPA limit 15 µg/L
 5/15 SYR4 2013–2019
Arsenic
3.95 µg/L 40%
of the EPA limit 10 µg/L
worst single sample: 4 µg/L
2/2 SYR4 2015–2017
Combined Uranium
2.999 µg/L 10%
of the EPA limit 30 µg/L
worst single sample: 3 µg/L
2/2 SYR4 2015–2017
Barium
87 µg/L 4.4%
of the EPA limit 2000 µg/L
 1/1 SYR4 2015
Combined Radium (-226 And -228)
1 pCi/L 20%
of the EPA limit 5 pCi/L
 1/2 SYR4 2015–2017
Fluoride
365 µg/L 9.1%
of the EPA limit 4000 µg/L
 1/1 SYR4 2015
Gross Alpha, Excl. Radon And U
3.4 pCi/L 23%
of the EPA limit 15 pCi/L
 1/2 SYR4 2015–2017
Selenium
1 µg/L 2%
of the EPA limit 50 µg/L
 1/1 SYR4 2015
64 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 TetrachlorideChlordaneChloroformChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromoacetic AcidDibromochloromethaneDichloroacetic AcidDinosebEthylene DibromideEndrinEthylbenzeneHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidOxamylPentachlorophenolPicloramSimazineStyreneTTHMTetrachloroethyleneThallium, TotalTolueneTotal Haloacetic Acids (HAA5)Total Polychlorinated Biphenyls (PCB)ToxapheneTrichloroacetic AcidTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
CLARK, PATRICK E
Phone
406-683-2853

Frequently asked questions about Hildreth Subdivision No 2

Is Hildreth Subdivision No 2 tap water safe to drink?

EPA monitoring detected 11 contaminants in Hildreth Subdivision No 2'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 Hildreth Subdivision No 2's water?

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

How many people does Hildreth Subdivision No 2 serve?

Hildreth Subdivision No 2 reports serving 300 people in Montana, per its EPA record.

Has Hildreth Subdivision No 2 had any water quality violations?

The EPA has 262 violations on file for Hildreth Subdivision No 2, 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.