Highland Park Utilities Assn, MT
Lead detected, under the action levels
Latest 90th-percentile lead: 2 ppb (monitoring period 2024-2026). 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.
Highland Park Utilities Assn at a glance
Highland Park Utilities Assn serves about 500 people through 158 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Dawson County, Montana. EPA system ID: MT0000570; phone on file: 406-377-4944. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Lead results over time
Against the period ending 2017 (2 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Highland Park Utilities Assn is 9 ppb across 3 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 2 ppb |
| 2017 | 2 ppb |
| 2016 | 9 ppb |
How Highland Park Utilities Assn compares
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. Highland Park Utilities Assn's 2 ppb sits at the 73rd percentile in Montana and the 71st nationally (higher means more lead).
Nearby utilities
6 other systems share Dawson County; 3 of them have a higher latest lead result than Highland Park Utilities Assn. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Glendive City Of | 4,873 | 6 ppb |
| Forest Park Water Rsid 24 | 1,200 | 3 ppb |
| Richey Town Of | 180 | 0 (not detected) |
| Casitas Del Mesa Mhp | 180 | 1 ppb |
| Whispering Trees Mobile Park | 100 | 1 ppb |
| Pinnacle Estates Of Glendive | 50 | 5 ppb |
Your move
Test your own tap with a certified lab first-draw sample; Glendive, 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 Highland Park Utilities Assn 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. Why sampled homes are the worst-case ones is in the guide to reading the number. The action level is dropping - the 10 ppb rule from 2027.