Iowa-American Water-Dixon, IA
Lead detected, under the action levels
Latest 90th-percentile lead: 6 ppb (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. Lead was measured in sampled homes but the 90th percentile is under both action levels. EPA's health goal for lead is zero, so test your own tap if your home was built before 1986 or anyone in it is pregnant or a young child.
Who runs the water here
Iowa-American Water-Dixon serves about 204 people through 104 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Scott County, Iowa. EPA system ID: IA8225043; phone on file: 563-726-0937. They can tell you what your service line is made of and whether they pay to replace it.
Iowa-American Water-Dixon's lead record
Against the period ending 2021 (7 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Iowa-American Water-Dixon is 7 ppb across 3 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2024 | 6 ppb |
| 2021 | 7 ppb |
| 2018 | 6 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. Iowa-American Water-Dixon's 6 ppb sits at the 91st percentile in Iowa and the 93rd nationally (higher means more lead).
Nearby utilities
47 other systems share Scott County; 1 of them has a higher latest lead result than Iowa-American Water-Dixon. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Iowa-American Wtr Co-Davenport | 147,720 | 1 ppb |
| Eldridge Water Supply | 6,726 | 1.3 ppb |
| Park View Water & Sanitary District | 2,389 | 1 ppb |
| Walcott Waterworks | 1,551 | 0 (not detected) |
| Buffalo Water Supply | 1,176 | 0 (not detected) |
| Princeton Water Supply | 923 | 5.2 ppb |
| Long Grove Muni Water Supply | 838 | 1.5 ppb |
| Iowa American Water Donahue | 335 | 0 (not detected) |
| Ponderosa Park Mhp | 320 | 0 (not detected) |
| Village Oaks Homeowners Assn | 250 | 2 ppb |
Your move
Test your own tap with a certified lab first-draw sample; Davenport, 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 Iowa-American Water-Dixon 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. Size matters more than most people expect: small vs large water systems.