Lolo Water And Sewer Dist, MT
Lead detected, under the action levels
Latest 90th-percentile lead: 2 ppb (monitoring period 2025-2027). The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. Lead was measured in sampled homes but the 90th percentile is under both action levels. EPA's health goal for lead is zero, so test your own tap if your home was built before 1986 or anyone in it is pregnant or a young child.
Who runs the water here
Lolo Water And Sewer Dist serves about 3,315 people through 1,243 service connections, which makes it a medium-sized system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws groundwater, in Missoula County, Montana. EPA system ID: MT0000278; phone on file: 406-544-1458. They can tell you what your service line is made of and whether they pay to replace it.
Lolo Water And Sewer Dist's lead record
Against the period ending 2024 (1 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Lolo Water And Sewer Dist is 2 ppb across 7 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2027 | 2 ppb |
| 2024 | 1 ppb |
| 2022 | 1 ppb |
| 2021 | 2 ppb |
| 2019 | 2 ppb |
| 2018 | 2 ppb |
| 2016 | 2 ppb |
Against other Montana systems
Of the 753 Montana systems with a lead result, the median latest reading is 1 ppb; 5 are over 15 ppb right now and 28 have gone over at some point. Lolo Water And Sewer Dist's 2 ppb sits at the 76th percentile in Montana and the 72nd nationally (higher means more lead).
Other water systems in Missoula County
80 other systems share Missoula County; 12 of them have a higher latest lead result than Lolo Water And Sewer Dist. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Missoula Water | 68,200 | 2 ppb |
| Seeley Lake Water District | 1,575 | 4 ppb |
| El Mar Estates Msla Co Water | 1,350 | 1 ppb |
| Westview Mobile Home Park | 947 | 1 ppb |
| Phantom Hills Water System | 810 | 3 ppb |
| Travois Village Mobile Park | 702 | 2 ppb |
| Wye Area Water System | 512 | 1 ppb |
| Grant Creek Water Users Association Inc | 380 | 0 (not detected) |
| Katoonah Lodges | 258 | 3 ppb |
| Sorrel Springs Hoa | 250 | 1 ppb |
Next steps for Lolo, MT
Test your own tap with a certified lab first-draw sample; Lolo, MT may offer free or low-cost kits through the utility. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask Lolo Water And Sewer Dist whether it covers that cost before hiring anyone - many utilities now do.
These figures describe homes the utility sampled, not your tap. Only your service line record or a test of your own water answers the question for your house. The lead result guide covers how utilities pick the homes they sample. Size matters more than most people expect: small vs large water systems.