Kelley Water Supply, IA
Exceeded the action level in the past
Latest 90th-percentile lead: reported as 0 (not detected) (monitoring period 2023-2023). The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. The latest result is under the action level, but this system has gone over 15 ppb before. Lead comes from pipes, not the source water, so a home with a lead service line can still be exposed. Test your own tap.
Kelley Water Supply at a glance
Kelley Water Supply serves about 304 people through 149 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 surface water, in Story County, Iowa. EPA system ID: IA8548016; phone on file: 515-460-4926. They can tell you what your service line is made of and whether they pay to replace it.
Every lead result on file
Against the period ending 2022 (1 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Kelley Water Supply is 28 ppb across 9 monitoring periods, 2 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2023 | 0 (not detected) |
| 2022 | 1 ppb |
| 2021 | 0 (not detected) |
| 2021 | 0 (not detected) |
| 2020 | 28 ppb over 15 |
| 2019 | 13 ppb over 10 |
| 2019 | 10 ppb |
| 2018 | 16 ppb over 15 |
| 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. Kelley Water Supply's reported as 0 (not detected) sits at the 15th percentile in Iowa and the 19th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Other water systems in Story County
18 other systems share Story County; 11 of them have a higher latest lead result than Kelley Water Supply. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Ames Water Treatment Plant | 55,177 | 0 (not detected) |
| Isu | 42,000 | 1.2 ppb |
| Nevada Water Supply | 6,925 | 0 (not detected) |
| Huxley Waterworks Dept | 4,244 | 1.1 ppb |
| Story City Water Dept | 3,357 | 0 (not detected) |
| Slater Muni Water Dept | 1,548 | 7 ppb |
| Roland Water Supply | 1,394 | 0 (not detected) |
| Gilbert Water Supply | 1,211 | 0 (not detected) |
| Maxwell Water Department | 859 | 4 ppb |
| Colo Water Supply | 853 | 1.1 ppb |
Next steps for Madrid, IA
Test your own tap with a certified lab first-draw sample; Madrid, IA 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 Kelley 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. What a 90th-percentile result does and does not tell you: how to read a lead result. Why an old exceedance still matters: over the limit before, under it now.