Edgemont Subd, ID
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (monitoring period 2021-2023). 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
Edgemont Subd serves about 40 people through 17 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Gem County, Idaho. EPA system ID: ID3230010. Ask the utility on your bill for your address in their service line inventory.
Every lead result on file
That is down 4 ppb from 4 ppb in the period ending 2020. The highest 90th-percentile result EPA holds for Edgemont Subd is 4 ppb across 5 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2023 | 0 (not detected) |
| 2020 | 4 ppb |
| 2019 | 0 (not detected) |
| 2019 | 0 (not detected) |
| 2017 | 1 ppb |
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. Edgemont Subd's reported as 0 (not detected) sits at the 3rd percentile in Idaho and the 2nd nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Neighbouring systems
5 other systems share Gem County; 4 of them have a higher latest lead result than Edgemont Subd. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Emmett City Of | 6,700 | 1 ppb |
| Bonnie Laura Subd | 60 | 4 ppb |
| Cherry Ridge Rehab | 50 | 2 ppb |
| Picket Corral Owners Association | 35 | 0 (not detected) |
| R And V Mobile Home Park | 27 | 6 ppb |
Your move
Look up your address in Edgemont Subd'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 Edgemont Subd 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. Small systems behave differently: why small systems go over more often.