Tap WaterIndex

← Montana

Tap water quality report

Hillcrest Colony

EPA monitoring tested this supplier for 72 contaminants and detected 16. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

72
contaminants tested
16
detected
89
people served
0
health-based violations
Montana rankingsLead in MontanaPFAS in Montana
Water source
Ground water
Ownership
Private
Counties served
Cascade

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
13
violations on file
0
still open
ViolationTypeStatusPeriod
Other Monitoring Resolved 2022-07-01
Other Monitoring Resolved 2022-07-01
MON Monitoring Resolved 2018-09-01 → 2018-09-30
MON Monitoring Resolved 2018-09-01 → 2018-09-30
MON Monitoring Resolved 2018-09-01 → 2018-09-30
MR Monitoring Resolved 2018-04-01
MR Monitoring Resolved 2018-04-01
MR Monitoring Resolved 2016-01-01 → 2016-12-31
MR Monitoring Resolved 2016-01-01 → 2016-12-31
MR Monitoring Resolved 2016-01-01 → 2016-12-31

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
47.6 µg/L 3.7%
of the EPA limit 1300 µg/L
worst single sample: 48 µg/L
23/30 SYR4 2014–2018
Lead
14.5 µg/L 97%
of the EPA limit 15 µg/L
worst single sample: 20 µg/L
12/30 SYR4 2014–2018
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 10/10 LCR 2024
Fluoride
3180 µg/L 80%
of the EPA limit 4000 µg/L
worst single sample: 3200 µg/L
5/5 SYR4 2017–2019
Combined Radium (-226 And -228)
4.27 pCi/L 85%
of the EPA limit 5 pCi/L
worst single sample: 4.3 pCi/L
4/4 SYR4 2017–2018
Bromodichloromethane
5.7 µg/L
No EPA limit set
worst single sample: 5.8 µg/L
3/7 SYR4 2014–2019
Chloroform
10.88 µg/L
No EPA limit set
worst single sample: 11 µg/L
3/7 SYR4 2014–2019
Dibromochloromethane
1.9 µg/L
No EPA limit set
 3/7 SYR4 2014–2019
Dichloroacetic Acid
5.75 µg/L
No EPA limit set
worst single sample: 5.8 µg/L
3/3 SYR4 2017–2019
Gross Alpha, Excl. Radon And U
9.57 pCi/L 64%
of the EPA limit 15 pCi/L
worst single sample: 10 pCi/L
3/4 SYR4 2017–2018
TTHM
17.9 µg/L 22%
of the EPA limit 80 µg/L
worst single sample: 18 µg/L
3/7 SYR4 2014–2019
Total Haloacetic Acids (HAA5)
9.31 µg/L 16%
of the EPA limit 60 µg/L
worst single sample: 9.4 µg/L
3/3 SYR4 2017–2019
Trichloroacetic Acid
3.18 µg/L
No EPA limit set
worst single sample: 3.2 µg/L
3/3 SYR4 2017–2019
Dibromoacetic Acid
0.5210 µg/L
No EPA limit set
worst single sample: 0.5300 µg/L
2/3 SYR4 2017–2019
Toluene
0.5900 µg/L 0.1%
of the EPA limit 1000 µg/L
 1/4 SYR4 2014–2019
Xylenes, Total
0.7900 µg/L 0%
of the EPA limit 10000 µg/L
 1/4 SYR4 2014–2019
56 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, TotalArsenicAtrazineBhc-GammaBariumBenzeneBenzo(A)PyreneBeryllium, TotalBromoformChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumCombined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebEndrinEthylbenzeneHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNitrate-NitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalToxapheneTrichloroethyleneVinyl Chloridecis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
WIPF, MICHAEL J
Phone
406-463-2236
Email
[email protected]

Frequently asked questions about Hillcrest Colony

Is Hillcrest Colony tap water safe to drink?

EPA monitoring detected 16 contaminants in Hillcrest Colony'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 Hillcrest Colony's water?

EPA monitoring detected Copper, Lead, Lead, Fluoride, Combined Radium (-226 And -228), and others. The full list with the level and data source for each is above.

How many people does Hillcrest Colony serve?

Hillcrest Colony reports serving 89 people in Montana, per its EPA record.

Has Hillcrest Colony had any water quality violations?

The EPA has 13 violations on file for Hillcrest Colony, 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.