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Tap water quality report

Meadow Lake Co Water and Sewer District

EPA monitoring tested this supplier for 65 contaminants and detected 8. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

65
contaminants tested
8
detected
950
people served
6
health-based violations
Montana rankingsLead in MontanaPFAS in Montana
Water source
Ground water
Ownership
Private
Counties served
Flathead

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.

6
health-based violations
107
violations on file
2
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2005-11-01 → 2005-11-30
MCL Health-based Resolved 2005-11-01 → 2005-11-30
MCL Health-based Resolved 2005-11-01 → 2005-11-30
MCL Health-based Resolved 2005-11-01 → 2005-11-30
MCL Health-based Resolved 2005-11-01 → 2005-11-30
MCL Health-based Resolved 2005-11-01 → 2005-11-30
MR Monitoring Unaddressed 2025-10-01
MR Monitoring Unaddressed 2025-10-01
MR Monitoring Resolved 2020-01-01 → 2022-12-31
MR Monitoring Resolved 2020-01-01 → 2022-12-31

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
132 µg/L 10%
of the EPA limit 1300 µg/L
worst single sample: 160 µg/L
15/15 SYR4 2013–2019
Nitrate-Nitrite
359 µg/L 3.6%
of the EPA limit 10000 µg/L
worst single sample: 450 µg/L
14/14 SYR4 2012–2019
Nitrate
450 µg/L 4.5%
of the EPA limit 10000 µg/L
 12/12 SYR4 2013–2019
Lead
0.0020 mg/L 13%
of the EPA limit 0.0150 mg/L
 11/11 LCR 2019
Lead
2 µg/L 13%
of the EPA limit 15 µg/L
 8/15 SYR4 2013–2019
Barium
197.5 µg/L 9.9%
of the EPA limit 2000 µg/L
worst single sample: 210 µg/L
6/6 SYR4 2013–2019
Fluoride
142.5 µg/L 3.6%
of the EPA limit 4000 µg/L
worst single sample: 150 µg/L
6/6 SYR4 2013–2019
Selenium
1 µg/L 2%
of the EPA limit 50 µg/L
 1/6 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, TotalArsenicAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalBromodichloromethaneBromoformChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneChloroformChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromochloromethaneDinosebEndrinEthylbenzeneHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNitriteOxamylPentachlorophenolPicloramSimazineStyreneTTHMTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
RILEY, BARBARA M
Phone
406-253-7729

Frequently asked questions about Meadow Lake Co Water and Sewer District

Is Meadow Lake Co Water and Sewer District tap water safe to drink?

EPA monitoring detected 8 contaminants in Meadow Lake Co 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 Meadow Lake Co Water and Sewer District's water?

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

How many people does Meadow Lake Co Water and Sewer District serve?

Meadow Lake Co Water and Sewer District reports serving 950 people in Montana, per its EPA record.

Has Meadow Lake Co Water and Sewer District had any water quality violations?

The EPA has 107 violations on file for Meadow Lake Co Water and Sewer District, of which 6 are health-based (a contaminant limit or required treatment was breached) and 2 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.