North Forty Subdivision, WY
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (monitoring period 2024-2024). The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. The latest 90th-percentile result was reported as 0 (not detected at the lab's limit). That says the sampled homes were low, not that your home has no lead service line. Check your utility's service line inventory for your address.
Who runs the water here
North Forty Subdivision serves about 15 people through 31 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Lincoln County, Wyoming. EPA system ID: WY5601719; phone on file: 307-884-8136. They can tell you what your service line is made of and whether they pay to replace it.
Every lead result on file
Against the period ending 2023 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for North Forty Subdivision is 0 ppb across 5 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2024 | 0 (not detected) |
| 2023 | 0 (not detected) |
| 2022 | 0 (not detected) |
| 2021 | 0 (not detected) |
| 2020 | 0 (not detected) |
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 Forty Subdivision's reported as 0 (not detected) sits at the 0th percentile in Wyoming and the 0th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Nearby utilities
27 other systems share Lincoln County; 20 of them have a higher latest lead result than North Forty Subdivision. 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 |
What to do in your house
Look up your address in North Forty Subdivision's service line inventory. If it says lead, galvanized or unknown, test your tap. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask North Forty Subdivision 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. The lead result guide covers how utilities pick the homes they sample. A zero today does not rule out a jump later - the rules are tightening in 2027.