Weir Gulch Water Assn, ID
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (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. 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
Weir Gulch Water Assn serves about 80 people through 34 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Shoshone County, Idaho. EPA system ID: ID1400082; phone on file: 208-682-4879. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Lead results over time
That is down 4 ppb from 4 ppb in the period ending 2021. The highest 90th-percentile result EPA holds for Weir Gulch Water Assn is 4 ppb across 3 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2024 | 0 (not detected) |
| 2021 | 4 ppb |
| 2018 | 0 (not detected) |
Where this result ranks
Of the 763 Idaho systems with a lead result, the median latest reading is 1 ppb; 3 are over 15 ppb right now and 46 have gone over at some point. Weir Gulch Water Assn's reported as 0 (not detected) sits at the 14th percentile in Idaho and the 7th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Nearby utilities
14 other systems share Shoshone County; 11 of them have a higher latest lead result than Weir Gulch Water Assn. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Central Shoshone County Water Dist | 6,455 | 1 ppb |
| E Shoshone County Water Dist Wallace | 2,388 | 2 ppb |
| Pinehurst Water Dist | 1,950 | 1 ppb |
| E Shoshone County Water Dist Mullan | 840 | 2 ppb |
| Cataldo Water Dist | 680 | 3 ppb |
| Kingston Water Dist 1 | 585 | 2 ppb |
| Leisure Acres Trailer Court | 180 | 0 (not detected) |
| Avery Water And Sewer Dist | 114 | 0 (not detected) |
| Sunny Acres | 100 | 1 ppb |
| Calder Water And Sewer District | 80 | 1.6 ppb |
Your move
Look up your address in Weir Gulch Water Assn'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 Weir Gulch Water Assn 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.