Luana Water Works, IA
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (monitoring period 2022-2024). 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.
Who runs the water here
Luana Water Works serves about 301 people through 131 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 Clayton County, Iowa. EPA system ID: IA2254061; phone on file: 563-880-2605. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Lead results over time
That is down 3.4 ppb from 3.4 ppb in the period ending 2021. The highest 90th-percentile result EPA holds for Luana Water Works is 3.4 ppb across 3 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2024 | 0 (not detected) |
| 2021 | 3.4 ppb |
| 2018 | 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. Luana Water Works'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 Clayton County
15 other systems share Clayton County; 15 of them have a higher latest lead result than Luana Water Works. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Guttenberg Water Utility | 1,817 | 1.6 ppb |
| Monona Municipal Water Dept | 1,471 | 3.5 ppb |
| Elkader Muni Water Dept | 1,219 | 5.4 ppb |
| Strawberry Point Water Supply | 1,155 | 2 ppb |
| Edgewood Water Supply | 939 | 3.7 ppb |
| Garnavillo Water Supply | 763 | 2.4 ppb |
| Mcgregor Water Dept | 747 | 9.01 ppb |
| Marquette Water Supply | 429 | 7.4 ppb |
| Farmersburg Waterworks | 276 | 1.2 ppb |
| Volga Water Supply | 203 | 1 ppb |
What to do in your house
Look up your address in Luana Water Works'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 Luana Water Works 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. A zero today does not rule out a jump later - the rules are tightening in 2027.