Whitewater Subd, ID
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (monitoring period 2021-2021). 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
Whitewater Subd serves about 106 people through 52 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Bannock County, Idaho. EPA system ID: ID6030058; phone on file: 208-251-1975. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Lead results over time
Against the period ending 2020 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Whitewater Subd is 3 ppb across 3 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2021 | 0 (not detected) |
| 2020 | 0 (not detected) |
| 2017 | 3 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. Whitewater Subd's reported as 0 (not detected) sits at the 17th percentile in Idaho and the 10th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Other water systems in Bannock County
22 other systems share Bannock County; 18 of them have a higher latest lead result than Whitewater Subd. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Pocatello City Of | 58,231 | 5 ppb |
| Chubbuck City Of | 15,842 | 2 ppb |
| Mccammon City Of | 800 | 2 ppb |
| Inkom City Of | 792 | 1 ppb |
| Downey City Of | 586 | 2 ppb |
| Lava Hot Springs City Of | 386 | 2 ppb |
| Arimo City Of | 368 | 14 ppb |
| Tyhee And S And N Estates Water Assn | 300 | 2 ppb |
| Laceys Vista Acres Water Corp | 200 | 9 ppb |
| Caribou Acres | 150 | 5 ppb |
What to do in your house
Look up your address in Whitewater 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 Whitewater 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. A zero today does not rule out a jump later - the rules are tightening in 2027.