Casitas Del Mesa Mhp, MT
Lead detected, under the action levels
Latest 90th-percentile lead: 1 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.
Casitas Del Mesa Mhp at a glance
Casitas Del Mesa Mhp serves about 180 people through 80 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: MT0002738; phone on file: 406-365-8900. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Casitas Del Mesa Mhp's lead record
That is down 8 ppb from 9 ppb in the period ending 2021. The highest 90th-percentile result EPA holds for Casitas Del Mesa Mhp is 9 ppb across 3 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2027 | 1 ppb |
| 2021 | 9 ppb |
| 2020 | 3.4 ppb |
How Casitas Del Mesa Mhp 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. Casitas Del Mesa Mhp's 1 ppb sits at the 54th percentile in Montana and the 52nd nationally (higher means more lead).
Nearby utilities
6 other systems share Dawson County; 4 of them have a higher latest lead result than Casitas Del Mesa Mhp. 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 |
| Highland Park Utilities Assn | 500 | 2 ppb |
| Richey Town Of | 180 | 0 (not detected) |
| 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 Casitas Del Mesa Mhp 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.