Jerome City Of, ID
Lead detected, under the action levels
Latest 90th-percentile lead: 3 ppb (monitoring period 2023-2025). 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
Jerome City Of serves about 13,135 people through 4,554 service connections, which makes it a large system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws groundwater, in Jerome County, Idaho. EPA system ID: ID5270011; phone on file: 208-324-8189. They can tell you what your service line is made of and whether they pay to replace it.
Lead results over time
That is up 3 ppb from 0 ppb in the period ending 2022. The highest 90th-percentile result EPA holds for Jerome City Of is 4 ppb across 4 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 3 ppb |
| 2022 | 0 (not detected) |
| 2019 | 4 ppb |
| 2016 | 2 ppb |
How Jerome 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. Jerome City Of's 3 ppb sits at the 82nd percentile in Idaho and the 83rd nationally (higher means more lead).
Nearby utilities
5 other systems share Jerome County; 1 of them has a higher latest lead result than Jerome City Of. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Hazelton City Of | 899 | 0 (not detected) |
| Eden City Of | 411 | 0 (not detected) |
| Unit 3 Water Assn | 350 | 0 (not detected) |
| North Rim Fairways | 150 | 2 ppb |
| Country Club Estates | 137 | 6 ppb |
Next steps for Jerome, ID
Test your own tap with a certified lab first-draw sample; Jerome, 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 Jerome 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. Systems that went over once often dip back under; here is what that means.