Macbride Estates Development, 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 Macbride Estates Development
Macbride Estates Development serves about 63 people through 28 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: IA5282310; phone on file: 319-961-2079. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Every lead result on file
Against the period ending 2019 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Macbride Estates Development is 10 ppb across 3 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2023 | 0 (not detected) |
| 2019 | 0 (not detected) |
| 2016 | 10 ppb |
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. Macbride Estates Development's reported as 0 (not detected) sits at the 3rd percentile in Iowa and the 5th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Other water systems in Johnson County
74 other systems share Johnson County; 41 of them have a higher latest lead result than Macbride Estates Development. 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 |
Your move
Look up your address in Macbride Estates Development'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 Macbride Estates Development 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. Small systems behave differently: why small systems go over more often.