Cleghorn Water Supply, IA
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (monitoring period 2024-2026). 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 Cleghorn Water Supply
Cleghorn Water Supply serves about 247 people through 127 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 Cherokee County, Iowa. EPA system ID: IA1817045; phone on file: 712-732-7745. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Lead results over time
Against the period ending 2023 (0.2 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Cleghorn Water Supply is 1.6 ppb across 4 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 0 (not detected) |
| 2023 | 0.2 ppb |
| 2020 | 1.6 ppb |
| 2017 | 0 (not detected) |
Against other Iowa systems
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. Cleghorn Water Supply's reported as 0 (not detected) sits at the 13th percentile in Iowa and the 17th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Other water systems in Cherokee County
10 other systems share Cherokee County; 8 of them have a higher latest lead result than Cleghorn Water Supply. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Cherokee Water Supply - Plant 1 | 5,199 | 1.5 ppb |
| Cherokee Rws - Cherokee Subsystem | 3,315 | 2.2 ppb |
| Cherokee Rws- Mill Creek Subsystem | 1,451 | 11.6 ppb |
| Marcus Water Supply | 1,079 | 1.5 ppb |
| Aurelia Water Supply | 968 | 1.5 ppb |
| Quimby Water Supply | 249 | 0.5 ppb |
| Washta Water Supply | 209 | 1.2 ppb |
| Meriden Municipal Water Supply | 161 | 3 ppb |
| Larrabee Municipal Water Works | 125 | 0 (not detected) |
| Hilltop Village Mhc, Inc. | 78 | 0 (not detected) |
Next steps for Storm Lake, IA
Look up your address in Cleghorn Water Supply'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 Cleghorn Water Supply 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. The lead result guide covers how utilities pick the homes they sample. A zero today does not rule out a jump later - the rules are tightening in 2027.