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Tap water quality report

Antler Ridge Homeowners Association

EPA monitoring tested this supplier for 67 contaminants and detected 10. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

67
contaminants tested
10
detected
50
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
694
violations on file
0
still open
ViolationTypeStatusPeriod
MR Monitoring Resolved 2020-01-01 → 2022-12-31
MR Monitoring Resolved 2020-01-01 → 2022-12-31
MR Monitoring Resolved 2020-01-01 → 2022-12-31
MR Monitoring Resolved 2020-01-01 → 2022-12-31
MR Monitoring Resolved 2020-01-01 → 2022-12-31
MR Monitoring Resolved 2020-01-01 → 2022-12-31
MR Monitoring Resolved 2019-01-09
MR Monitoring Resolved 2019-01-09
MR Monitoring Resolved 2019-01-09
MON Monitoring Resolved 2018-12-01 → 2018-12-31

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
Copper
224 µg/L 17%
of the EPA limit 1300 µg/L
worst single sample: 725 µg/L
25/25 SYR4 2012–2017
Nitrate-Nitrite
117 µg/L 1.2%
of the EPA limit 10000 µg/L
worst single sample: 120 µg/L
22/32 SYR4 2012–2019
Lead
15.5 µg/L 103%
of the EPA limit, at the 95th percentile of samples — 15 µg/L
worst single sample: 20 µg/L
16/25 SYR4 2012–2017
Combined Uranium
5 µg/L 17%
of the EPA limit 30 µg/L
 11/12 SYR4 2012–2019
Gross Alpha, Excl. Radon And U
9.9 pCi/L 66%
of the EPA limit 15 pCi/L
worst single sample: 10 pCi/L
11/12 SYR4 2012–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 7/7 LCR 2023
Fluoride
400 µg/L 10%
of the EPA limit 4000 µg/L
 6/6 SYR4 2012–2019
Arsenic
8.8 µg/L 88%
of the EPA limit 10 µg/L
worst single sample: 9 µg/L
3/6 SYR4 2012–2019
Combined Radium (-226 And -228)
1.635 pCi/L 33%
of the EPA limit 5 pCi/L
worst single sample: 1.7 pCi/L
2/11 SYR4 2012–2016
Gross Beta Particle Activity
1.1 pCi/L
No EPA limit set
 1/10 SYR4 2012–2014
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
PEAK WATER SERVICES
Phone
406-813-7035
Email
[email protected]

Frequently asked questions about Antler Ridge Homeowners Association

Is Antler Ridge Homeowners Association tap water safe to drink?

EPA monitoring detected 10 contaminants in Antler Ridge Homeowners Association'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 Antler Ridge Homeowners Association's water?

EPA monitoring detected Copper, Nitrate-Nitrite, Lead, Combined Uranium, Gross Alpha, Excl. Radon And U, and others. The full list with the level and data source for each is above.

How many people does Antler Ridge Homeowners Association serve?

Antler Ridge Homeowners Association reports serving 50 people in Montana, per its EPA record.

Has Antler Ridge Homeowners Association had any water quality violations?

The EPA has 694 violations on file for Antler Ridge Homeowners Association, 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.