Carroll Water And Sewer, OH
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (monitoring period 2026-2026). 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.
Carroll Water And Sewer at a glance
Carroll Water And Sewer serves about 2,288 people through 1,436 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 surface water, in Ottawa County, Ohio. EPA system ID: OH6205111; phone on file: 419-898-5028. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Carroll Water And Sewer's lead record
Against the period ending 2025 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Carroll Water And Sewer is 0 ppb across 5 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 0 (not detected) |
| 2025 | 0 (not detected) |
| 2022 | 0 (not detected) |
| 2019 | 0 (not detected) |
| 2016 | 0 (not detected) |
How Carroll Water And Sewer compares
Of the 1,079 Ohio systems with a lead result, the median latest reading is 0.7 ppb; 1 are over 15 ppb right now and 27 have gone over at some point. Carroll Water And Sewer's reported as 0 (not detected) sits at the 28th percentile in Ohio and the 31st nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Nearby utilities
10 other systems share Ottawa County; 3 of them have a higher latest lead result than Carroll Water And Sewer. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Ottawa County Regional Water District | 20,428 | 0 (not detected) |
| Port Clinton City | 6,500 | 0 (not detected) |
| Put-In-Bay Village | 5,000 | 10.9 ppb |
| Oak Harbor Village | 4,400 | 0 (not detected) |
| Genoa Village | 3,110 | 0 (not detected) |
| Elmore Village | 1,421 | 0 (not detected) |
| Marblehead Village | 865 | 0 (not detected) |
| Grand Country | 130 | 1.89 ppb |
| Green Valley Mobile Home Park | 82 | 0 (not detected) |
| Greenwood Mobile Home Park | 77 | 1.4 ppb |
Next steps for Oak Harbor, OH
Look up your address in Carroll Water And Sewer'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 Carroll Water And Sewer 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. Small systems behave differently: why small systems go over more often.