Is Ridgewood Estates Tap Water Safe? Quality Report

Water source: Surface water
Ownership: Private
Counties served: Lake

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.

health-based violations

365

violations on file

still open

Violation	Type	Status	Period
TT	Health-based	Resolved	2014-05-01 → 2014-05-31
TT	Health-based	Resolved	2014-05-01 → 2014-05-31
TT	Health-based	Resolved	2014-05-01 → 2014-05-31
Other	Monitoring	Resolved	2024-07-01
Other	Monitoring	Resolved	2024-07-01
MR	Monitoring	Resolved	2014-05-01 → 2014-05-31
MR	Monitoring	Resolved	2014-05-01 → 2014-05-31
MR	Monitoring	Resolved	2014-05-01 → 2014-05-31
MR	Monitoring	Resolved	2014-03-01 → 2014-03-31
MR	Monitoring	Resolved	2014-03-01 → 2014-03-31

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.

Contaminant	Level vs EPA limit	Detection rate	Source	Period
Copper	1173 µg/L 90% of the EPA limit 1300 µg/L worst single sample: 2090 µg/L	15/15	SYR4	2013–2019
Lead	0.0020 mg/L 13% of the EPA limit 0.0150 mg/L	15/15	LCR	2025
TTHM	23.8 µg/L 30% of the EPA limit 80 µg/L worst single sample: 28 µg/L	15/16	SYR4	2012–2019
Bromodichloromethane	5.67 µg/L No EPA limit set worst single sample: 5.8 µg/L	14/16	SYR4	2012–2019
Chloroform	20.15 µg/L No EPA limit set worst single sample: 26 µg/L	14/16	SYR4	2012–2019
Dibromochloromethane	2.55 µg/L No EPA limit set worst single sample: 2.7 µg/L	11/16	SYR4	2012–2019
Nitrate-Nitrite	1696 µg/L 17% of the EPA limit 10000 µg/L worst single sample: 1980 µg/L	9/9	SYR4	2012–2019
Dichloroacetic Acid	11.96 µg/L No EPA limit set worst single sample: 14 µg/L	7/8	SYR4	2012–2019
Total Haloacetic Acids (HAA5)	20.3 µg/L 34% of the EPA limit 60 µg/L worst single sample: 23 µg/L	7/8	SYR4	2012–2019
Trichloroacetic Acid	6.6 µg/L No EPA limit set worst single sample: 7.2 µg/L	7/8	SYR4	2012–2019
Dibromoacetic Acid	0.5600 µg/L No EPA limit set worst single sample: 0.5700 µg/L	6/8	SYR4	2012–2019
Lead	7.8 µg/L 52% of the EPA limit 15 µg/L worst single sample: 8 µg/L	5/15	SYR4	2013–2019
Nitrate	1060 µg/L 11% of the EPA limit 10000 µg/L	4/4	SYR4	2017–2018
Barium	175 µg/L 8.8% of the EPA limit 2000 µg/L worst single sample: 180 µg/L	2/2	SYR4	2012–2017
Combined Radium (-226 And -228)	2.24 pCi/L 45% of the EPA limit 5 pCi/L worst single sample: 2.3 pCi/L	2/2	SYR4	2014–2018
Combined Uranium	20.42 µg/L 68% of the EPA limit 30 µg/L worst single sample: 21 µg/L	2/2	SYR4	2014–2018
Fluoride	116 µg/L 2.9% of the EPA limit 4000 µg/L worst single sample: 120 µg/L	2/2	SYR4	2012–2017
Gross Alpha, Excl. Radon And U	13.67 pCi/L 91% of the EPA limit 15 pCi/L worst single sample: 14 pCi/L	2/2	SYR4	2014–2018
Arsenic	580 µg/L 5800% of the EPA limit, at the 95th percentile of samples — 10 µg/L	1/9	SYR4	2012–2019
Bromoform	0.8800 µg/L No EPA limit set	1/16	SYR4	2012–2019
Monochloroacetic Acid	1.1 µg/L No EPA limit set	1/8	SYR4	2012–2019

53 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 TetrachlorideChlordaneChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebEndrinEthylbenzeneHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact: RIDGEWOOD PROPERTY OWNERS ASSOC
Phone: 505-250-9778

Frequently asked questions about Ridgewood Estates

Is Ridgewood Estates tap water safe to drink?

EPA monitoring detected 21 contaminants in Ridgewood Estates'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 Ridgewood Estates's water?

EPA monitoring detected Copper, Lead, TTHM, Bromodichloromethane, Chloroform, and others. The full list with the level and data source for each is above.

How many people does Ridgewood Estates serve?

Ridgewood Estates reports serving 250 people in Montana, per its EPA record.

Has Ridgewood Estates had any water quality violations?

The EPA has 365 violations on file for Ridgewood Estates, 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.