Hidden Acres Subdivision, IA
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.
About Hidden Acres Subdivision
Hidden Acres Subdivision serves about 90 people through 36 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Johnson County, Iowa. EPA system ID: IA5282308; phone on file: 563-940-6539. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Hidden Acres Subdivision's lead record
That is down 2 ppb from 2 ppb in the period ending 2020. The highest 90th-percentile result EPA holds for Hidden Acres Subdivision is 2 ppb across 3 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2023 | 0 (not detected) |
| 2020 | 2 ppb |
| 2017 | 0 (not detected) |
Where this result ranks
Of the 1,066 Iowa systems with a lead result, the median latest reading is 1.4 ppb; 4 are over 15 ppb right now and 36 have gone over at some point. Hidden Acres Subdivision's reported as 0 (not detected) sits at the 5th percentile in Iowa and the 8th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Neighbouring systems
74 other systems share Johnson County; 41 of them have a higher latest lead result than Hidden Acres Subdivision. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Iowa City Water Department | 68,753 | 4 ppb |
| University Water System | 47,136 | 0 (not detected) |
| North Liberty Water Supply | 23,276 | 0 (not detected) |
| Coralville Muni Water System | 22,318 | 3 ppb |
| Tiffin Water Supply | 7,577 | 0 (not detected) |
| Solon Water Dept | 3,018 | 7 ppb |
| Lone Tree Muni Water System | 1,357 | 2 ppb |
| Lake Ridge, Incorporated | 1,300 | 0 (not detected) |
| Modern Manor, Inc | 915 | 1 ppb |
| Hills Water Supply | 863 | 2 ppb |
What to do in your house
Look up your address in Hidden Acres Subdivision'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 Hidden Acres Subdivision 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. Small systems behave differently: why small systems go over more often.