Arimo City Of, ID
Above the new 10 ppb level coming in 2027
Latest 90th-percentile lead: 14 ppb (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. Under the current 15 ppb rule this is not an exceedance, but it is above the 10 ppb action level that takes over in Nov 2027. Test your own tap; filter if your result shows lead.
About Arimo City Of
Arimo City Of serves about 368 people through 135 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 Bannock County, Idaho. EPA system ID: ID6030002; phone on file: 208-254-3507. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Every lead result on file
That is up 9 ppb from 5 ppb in the period ending 2020. The highest 90th-percentile result EPA holds for Arimo City Of is 14 ppb across 4 monitoring periods, none of them over 15 ppb (2 over 10 ppb).
| Period ending | 90th-percentile lead |
|---|---|
| 2023 | 14 ppb over 10 |
| 2020 | 5 ppb |
| 2019 | 13 ppb over 10 |
| 2017 | 2 ppb |
Against other Idaho systems
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. Arimo City Of's 14 ppb sits at the 99th percentile in Idaho and the 99th nationally (higher means more lead).
Nearby utilities
22 other systems share Bannock County; 0 of them have a higher latest lead result than Arimo City Of. 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 |
| Tyhee And S And N Estates Water Assn | 300 | 2 ppb |
| Laceys Vista Acres Water Corp | 200 | 9 ppb |
| Caribou Acres | 150 | 5 ppb |
| D And M Water Assn | 142 | 2 ppb |
Your move
Test your own tap with a certified lab first-draw sample; Arimo, ID 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 Arimo City Of 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. Why sampled homes are the worst-case ones is in the guide to reading the number. See what changes at 10 ppb in 2027.