Kalona Water Dept, IA
Exceeded the action level in the past
Latest 90th-percentile lead: 1 ppb (monitoring period 2023-2025). 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.
Kalona Water Dept at a glance
Kalona Water Dept serves about 2,630 people through 1,138 service connections, which makes it a small system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws groundwater, in Washington County, Iowa. EPA system ID: IA9233012; phone on file: 319-656-2310. They can tell you what your service line is made of and whether they pay to replace it.
Lead results over time
Against the period ending 2022 (2 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Kalona Water Dept is 47 ppb across 7 monitoring periods, 1 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 1 ppb |
| 2022 | 2 ppb |
| 2019 | 2 ppb |
| 2018 | 2 ppb |
| 2017 | 1 ppb |
| 2017 | 2 ppb |
| 2016 | 47 ppb over 15 |
How Kalona Water Dept compares
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. Kalona Water Dept's 1 ppb sits at the 44th percentile in Iowa and the 54th nationally (higher means more lead).
Nearby utilities
12 other systems share Washington County; 6 of them have a higher latest lead result than Kalona Water Dept. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Washington Water Department | 7,362 | 0 (not detected) |
| Wellman Municipal Waterworks | 1,524 | 0 (not detected) |
| Riverside Water Supply | 1,060 | 0 (not detected) |
| Brighton Municipal Water Supply | 600 | 2 ppb |
| Ainsworth Water Works | 511 | 0 (not detected) |
| Crawfordsville Water Supply | 277 | 0 (not detected) |
| West Chester Muni Wtr Supply | 144 | 4 ppb |
| Timberline Estates | 95 | 2 ppb |
| Linn Hollow Mhp Llc | 68 | 5.2 ppb |
| City Of Kalona - Southtown | 60 | 6 ppb |
Your move
Test your own tap with a certified lab first-draw sample; Kalona, 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 Kalona Water Dept whether it covers that cost before hiring anyone - many utilities now do. Its latest copper 90th percentile is 1400 ppb (copper action level 1,300 ppb).
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. Why an old exceedance still matters: over the limit before, under it now.