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Tap water quality report

Pablo Lake County Water and Sewer Dist

EPA monitoring tested this supplier for 68 contaminants and detected 10. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

68
contaminants tested
10
detected
2,175
people served
45
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.

45
health-based violations
63
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2023-11-01 → 2023-11-30
MCL Health-based Resolved 2023-11-01 → 2023-11-30
MCL Health-based Resolved 2023-11-01 → 2023-11-30
MCL Health-based Resolved 2023-11-01 → 2023-11-30
TT Health-based Resolved 2023-04-09
TT Health-based Resolved 2023-04-09
TT Health-based Resolved 2023-04-09
MCL Health-based Resolved 2011-06-01 → 2011-06-30
MCL Health-based Resolved 2011-06-01 → 2011-06-30
MCL Health-based Resolved 2011-06-01 → 2011-06-30

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
534 µg/L 41%
of the EPA limit 1300 µg/L
worst single sample: 610 µg/L
44/50 SYR4 2014–2017
Lead
0.0030 mg/L 20%
of the EPA limit 0.0150 mg/L
 14/14 LCR 2017
Nitrate-Nitrite
238 µg/L 2.4%
of the EPA limit 10000 µg/L
worst single sample: 310 µg/L
10/12 SYR4 2012–2019
Lead
23.2 µg/L 155%
of the EPA limit, at the 95th percentile of samples — 15 µg/L
worst single sample: 36 µg/L
9/50 SYR4 2014–2017
Fluoride
319 µg/L 8%
of the EPA limit 4000 µg/L
worst single sample: 320 µg/L
3/3 SYR4 2012–2019
Barium
59.5 µg/L 3%
of the EPA limit 2000 µg/L
worst single sample: 60 µg/L
2/3 SYR4 2012–2019
Nitrate
130 µg/L 1.3%
of the EPA limit 10000 µg/L
 2/4 SYR4 2016–2019
Arsenic
2 µg/L 20%
of the EPA limit 10 µg/L
 1/6 SYR4 2012–2019
Gross Alpha, Excl. Radon And U
3.5 pCi/L 23%
of the EPA limit 15 pCi/L
 1/1 SYR4 2016
Toluene
1.1 µg/L 0.1%
of the EPA limit 1000 µg/L
 1/5 SYR4 2012–2019
58 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)Combined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromochloromethaneDinosebEndrinEthylbenzeneHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTTHMTetrachloroethyleneThallium, TotalToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
OLSEN, LESLIE
Phone
406-675-4242
Email
[email protected]

Frequently asked questions about Pablo Lake County Water and Sewer Dist

Is Pablo Lake County Water and Sewer Dist tap water safe to drink?

EPA monitoring detected 10 contaminants in Pablo Lake County Water and Sewer Dist'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 Pablo Lake County Water and Sewer Dist's water?

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

How many people does Pablo Lake County Water and Sewer Dist serve?

Pablo Lake County Water and Sewer Dist reports serving 2,175 people in Montana, per its EPA record.

Has Pablo Lake County Water and Sewer Dist had any water quality violations?

The EPA has 63 violations on file for Pablo Lake County Water and Sewer Dist, of which 45 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.