North Alpine I&S District, WY
Lead detected, under the action levels
Latest 90th-percentile lead: 6 ppb (monitoring period 2022-2024). 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 North Alpine I&S District
North Alpine I&S District serves about 200 people through 77 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 groundwater, in Lincoln County, Wyoming. EPA system ID: WY5601021; phone on file: 307-413-3589. Call that number and ask whether your address has a lead, galvanized or unknown service line.
North Alpine I&S District's lead record
That is up 4 ppb from 2 ppb in the period ending 2021. The highest 90th-percentile result EPA holds for North Alpine I&S District is 6 ppb across 5 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2024 | 6 ppb |
| 2021 | 2 ppb |
| 2018 | 2 ppb |
| 2018 | 0 (not detected) |
| 2017 | 5 ppb |
Against other Wyoming systems
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. North Alpine I&S District's 6 ppb sits at the 95th percentile in Wyoming and the 93rd nationally (higher means more lead).
Nearby utilities
27 other systems share Lincoln County; 2 of them have a higher latest lead result than North Alpine I&S District. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Kemmerer-Diamondville Jpb | 3,348 | 2 ppb |
| Star Valley Ranch, Town Of | 2,894 | 8 ppb |
| Afton, Board Of Pub Utilities | 2,000 | 1 ppb |
| Leisure Valley Inc/ Star Valley Rv Park | 1,897 | 1 ppb |
| Alpine, Town Of | 1,300 | 1 ppb |
| Bedford Water & Sewer District | 750 | 1 ppb |
| Greater Smoot W&S District | 720 | 1 ppb |
| Cokeville, Town Of | 535 | 1.1 ppb |
| Nordic Ranches Water, Llc. | 465 | 3 ppb |
| Thayne, Town Of | 366 | 1 ppb |
Next steps for Alpine, WY
Test your own tap with a certified lab first-draw sample; Alpine, 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 North Alpine I&S District 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.