EPA data as of Oct 2026 · page updated 2026-10-29

Lolo Water and Sewer Dist

Lolo Water and Sewer Dist (EPA ID MT0000278) in Lolo, MT supplies groundwater (wells) to about 3,315 people: no health-based violations since 2016, latest lead result 2 ppb, PFAS not tested.

Service area

EPA service-area boundary (state-supplied or EPA-modeled)
Water utility service area PFOA/PFOS ≥ 4 ppt Lead > 15 ppb 5+ violations Superfund site (active) proposed cleaned up Circles: other water systems flagged nearby; size = people served. Tap any symbol for details.

System facts

People served3,315
Connections1,243
Sourcegroundwater (wells)
WholesalerNo

Health-based violations

No health-based violations reported since 2016.

Lead

Jan 20252 ppb
Jan 20221 ppb
Jan 20201 ppb
Jan 20192 ppb
Jan 20172 ppb
Jan 20162 ppb
Jan 20142 ppb
Jan 20130 ppb

90th-percentile lead per sampling round (90% of the homes sampled were at or below this level). Black line: EPA’s 15 ppb action level; under the Lead and Copper Rule Improvements the action level becomes 10 ppb from 2027.

PFAS

This system was not part of EPA’s 2023–2025 nationwide PFAS testing (UCMR 5).

What this is — and isn’t. These are records your water utility and state reported to the EPA, and the EPA’s radon map for your county. They describe the system and the area, not the water from your own tap or the air in your home. For that, read your utility’s annual Consumer Confidence Report and test: lead and radon tests are inexpensive.

Questions

Has Lolo Water and Sewer Dist had drinking water violations?

No health-based violations reported since 2016.

What is the lead level in Lolo Water and Sewer Dist water?

The latest 90th-percentile lead result (Jan 2025) was 2 ppb. EPA’s action level is 15 ppb (10 ppb from 2027).

Does Lolo Water and Sewer Dist have PFAS in its water?

This system was not part of EPA’s 2023–2025 nationwide PFAS testing (UCMR 5 covers systems serving over 3,300 people and a sample of smaller ones).