Downey City Of, ID
Lead detected, under the action levels
Latest 90th-percentile lead: 2 ppb (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. Lead was measured in sampled homes but the 90th percentile is under both action levels. EPA's health goal for lead is zero, so test your own tap if your home was built before 1986 or anyone in it is pregnant or a young child.
Who runs the water here
Downey City Of serves about 586 people through 345 service connections, which makes it a 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: ID6030012; phone on file: 208-897-5342. They can tell you what your service line is made of and whether they pay to replace it.
Downey City Of's lead record
Against the period ending 2021 (3 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Downey City Of is 3 ppb across 3 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2024 | 2 ppb |
| 2021 | 3 ppb |
| 2018 | 3 ppb |
How Downey City Of compares
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. Downey City Of's 2 ppb sits at the 70th percentile in Idaho and the 71st nationally (higher means more lead).
Other water systems in Bannock County
22 other systems share Bannock County; 7 of them have a higher latest lead result than Downey 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 |
| 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 |
| D And M Water Assn | 142 | 2 ppb |
Next steps for Downey, ID
Test your own tap with a certified lab first-draw sample; Downey, 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 Downey 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. What a 90th-percentile result does and does not tell you: how to read a lead result. Size matters more than most people expect: small vs large water systems.