Tap WaterIndex

← Montana

Tap water quality report

Woods Bay Water and Sewer District

EPA monitoring tested this supplier for 68 contaminants and detected 11. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

68
contaminants tested
11
detected
685
people served
92
health-based violations
Montana rankingsLead in MontanaPFAS in Montana
Water source
Ground water
Ownership
Local government
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.

92
health-based violations
106
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2015-10-01 → 2015-10-31
MCL Health-based Resolved 2015-10-01 → 2015-10-31
MCL Health-based Resolved 2015-10-01 → 2015-10-31
MCL Health-based Resolved 2015-10-01 → 2015-10-31
MCL Health-based Resolved 2015-10-01 → 2015-10-31
MCL Health-based Resolved 2015-10-01 → 2015-10-31
MCL Health-based Resolved 2015-08-01 → 2015-08-31
MCL Health-based Resolved 2015-08-01 → 2015-08-31
MCL Health-based Resolved 2015-08-01 → 2015-08-31
MCL Health-based Resolved 2015-08-01 → 2015-08-31

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
363 µg/L 28%
of the EPA limit 1300 µg/L
worst single sample: 580 µg/L
30/30 SYR4 2013–2019
Lead
14.9 µg/L 99%
of the EPA limit 15 µg/L
worst single sample: 25 µg/L
23/30 SYR4 2013–2019
Nitrate-Nitrite
3894 µg/L 39%
of the EPA limit 10000 µg/L
worst single sample: 3950 µg/L
8/8 SYR4 2012–2019
Nitrate
3790 µg/L 38%
of the EPA limit 10000 µg/L
 6/6 SYR4 2013–2018
Lead
0.0040 mg/L 27%
of the EPA limit 0.0150 mg/L
 5/5 LCR 2025
Barium
706 µg/L 35%
of the EPA limit 2000 µg/L
worst single sample: 720 µg/L
3/3 SYR4 2013–2018
Fluoride
1825 µg/L 46%
of the EPA limit 4000 µg/L
worst single sample: 1900 µg/L
3/3 SYR4 2013–2018
Arsenic
2 µg/L 20%
of the EPA limit 10 µg/L
 1/3 SYR4 2013–2018
Combined Uranium
4 µg/L 13%
of the EPA limit 30 µg/L
 1/1 SYR4 2016
Gross Alpha, Excl. Radon And U
2.3 pCi/L 15%
of the EPA limit 15 pCi/L
 1/1 SYR4 2016
Nitrite
60 µg/L 6%
of the EPA limit 1000 µg/L
 1/3 SYR4 2013–2018
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-GammaBenzeneBenzo(A)PyreneBeryllium, TotalBromodichloromethaneBromoformChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneChloroformChromiumCombined Radium (-226 And -228)DichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromochloromethaneDinosebEndrinEthylbenzeneHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTTHMTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
SPENCER, JULIE
Phone
406-837-4566
Email
[email protected]

Frequently asked questions about Woods Bay Water and Sewer District

Is Woods Bay Water and Sewer District tap water safe to drink?

EPA monitoring detected 11 contaminants in Woods Bay Water and Sewer District'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 Woods Bay Water and Sewer District's water?

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

How many people does Woods Bay Water and Sewer District serve?

Woods Bay Water and Sewer District reports serving 685 people in Montana, per its EPA record.

Has Woods Bay Water and Sewer District had any water quality violations?

The EPA has 106 violations on file for Woods Bay Water and Sewer District, of which 92 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.