Denton Town Of, MT
Lead detected, under the action levels
Latest 90th-percentile lead: 4 ppb (monitoring period 2023-2025). 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.
About Denton Town Of
Denton Town Of serves about 255 people through 169 service connections, which makes it a very small system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws surface water, in Fergus County, Montana. EPA system ID: MT0000199; phone on file: 406-567-2571. They can tell you what your service line is made of and whether they pay to replace it.
Lead results over time
That is down 5 ppb from 9 ppb in the period ending 2019. The highest 90th-percentile result EPA holds for Denton Town Of is 9 ppb across 3 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 4 ppb |
| 2019 | 9 ppb |
| 2016 | 3 ppb |
Where this result ranks
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. Denton Town Of's 4 ppb sits at the 90th percentile in Montana and the 87th nationally (higher means more lead).
Other water systems in Fergus County
10 other systems share Fergus County; 0 of them have a higher latest lead result than Denton Town Of. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Lewistown City Of | 5,923 | 0 (not detected) |
| Mountain Acres Mb Hm Pk | 320 | 0 (not detected) |
| Winifred Town Of | 274 | 0 (not detected) |
| Moore Town Of | 186 | 0 (not detected) |
| Roy Water And Sewer District | 110 | 0 (not detected) |
| Grass Range Town Of | 102 | 0 (not detected) |
| Ayers Hutterite Colony | 58 | 0 (not detected) |
| King Ranch Colony | 56 | 0 (not detected) |
| Deerfield Hutterite Colony | 51 | 0 (not detected) |
| Spring Creek Colony Lewistown | 48 | 0 (not detected) |
Your move
Test your own tap with a certified lab first-draw sample; Denton, 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 Denton Town Of 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. Size matters more than most people expect: small vs large water systems.