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Tap water quality report

Antigone Acres Hoa

EPA monitoring tested this supplier for 63 contaminants and detected 6. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

63
contaminants tested
6
detected
85
people served
3
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.

3
health-based violations
98
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 1999-01-01 → 2001-12-31
MCL Health-based Resolved 1999-01-01 → 2001-12-31
MCL Health-based Resolved 1999-01-01 → 2001-12-31
MON Monitoring Resolved 2020-06-01 → 2020-06-30
MON Monitoring Resolved 2020-06-01 → 2020-06-30
MON Monitoring Resolved 2020-06-01 → 2020-06-30
Other Monitoring Resolved 2010-07-01
Other Monitoring Resolved 2010-07-01
Other Monitoring Resolved 2010-07-01
Other Monitoring Resolved 2008-07-01

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 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
Nitrate-Nitrite
1030 µg/L 10%
of the EPA limit 10000 µg/L
 48/48 SYR4 2012–2019
Copper
606 µg/L 47%
of the EPA limit 1300 µg/L
 15/15 SYR4 2013–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 13/13 LCR 2025
Lead
2 µg/L 13%
of the EPA limit 15 µg/L
 13/15 SYR4 2013–2019
Arsenic
3 µg/L 30%
of the EPA limit 10 µg/L
 9/9 SYR4 2013–2019
Fluoride
300 µg/L 7.5%
of the EPA limit 4000 µg/L
 6/7 SYR4 2013–2019
57 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-GammaBariumBenzeneBenzo(A)PyreneBeryllium, TotalBromodichloromethaneBromoformChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneChloroformChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromochloromethaneDinosebEndrinEthylbenzeneHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTTHMTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
PLILEY, JEANETTE
Phone
406-381-1243

Frequently asked questions about Antigone Acres Hoa

Is Antigone Acres Hoa tap water safe to drink?

EPA monitoring detected 6 contaminants in Antigone Acres Hoa'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 Antigone Acres Hoa'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 Antigone Acres Hoa serve?

Antigone Acres Hoa reports serving 85 people in Montana, per its EPA record.

Has Antigone Acres Hoa had any water quality violations?

The EPA has 98 violations on file for Antigone Acres Hoa, of which 3 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.