Dillman Estates, WY
Lead detected, under the action levels
Latest 90th-percentile lead: 1 ppb (monitoring period 2025-2025). 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 Dillman Estates
Dillman Estates serves about 100 people through 33 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Goshen County, Wyoming. EPA system ID: WY5601248. Ask the utility on your bill for your address in their service line inventory.
Dillman Estates's lead record
That is down 5 ppb from 6 ppb in the period ending 2024. The highest 90th-percentile result EPA holds for Dillman Estates is 6 ppb across 8 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 1 ppb |
| 2024 | 6 ppb |
| 2023 | 4 ppb |
| 2022 | 6 ppb |
| 2021 | 6 ppb |
| 2020 | 5 ppb |
| 2019 | 5 ppb |
| 2019 | 4 ppb |
Where this result ranks
Of the 311 Wyoming systems with a lead result, the median latest reading is 1 ppb; 0 are over 15 ppb right now and 16 have gone over at some point. Dillman Estates's 1 ppb sits at the 37th percentile in Wyoming and the 51st nationally (higher means more lead).
Neighbouring systems
9 other systems share Goshen County; 6 of them have a higher latest lead result than Dillman Estates. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Torrington Municipal Water Dept, City Of | 6,847 | 5 ppb |
| Lingle, Town Of | 486 | 1 ppb |
| South Torrington Water District | 450 | 4 ppb |
| La Grange, Town Of | 448 | 4 ppb |
| Fort Laramie, Town Of | 230 | 5 ppb |
| Yoder, Town Of | 131 | 1 ppb |
| Stone Creek Hoa | 100 | 7 ppb |
| Cottonwood Acres | 95 | 1 ppb |
| Potlatch Trailer Court | 70 | 3 ppb |
Your move
Test your own tap with a certified lab first-draw sample; Torrington, WY 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 Dillman Estates 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. What a 90th-percentile result does and does not tell you: how to read a lead result. Size matters more than most people expect: small vs large water systems.