Ashtabula County Water System, 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.
Who runs the water here
Ashtabula County Water System serves about 14,757 people through 6,048 service connections, which makes it a large system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws surface water, in Ashtabula County, Ohio. EPA system ID: OH0400803; phone on file: 440-576-3722. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Lead results over time
Against the period ending 2025 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Ashtabula County Water System is 3.8 ppb across 9 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 0 (not detected) |
| 2025 | 0 (not detected) |
| 2024 | 0 (not detected) |
| 2023 | 0 (not detected) |
| 2023 | 0 (not detected) |
| 2022 | 0 (not detected) |
| 2020 | 3.8 ppb |
| 2019 | 2.7 ppb |
| 2016 | 0 (not detected) |
Against other Ohio systems
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. Ashtabula County Water System's reported as 0 (not detected) sits at the 40th percentile in Ohio and the 38th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Other water systems in Ashtabula County
10 other systems share Ashtabula County; 5 of them have a higher latest lead result than Ashtabula County Water System. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Aqua Ohio - Ashtabula | 32,342 | 2.01 ppb |
| Conneaut | 12,538 | 2.2 ppb |
| Andover-Camplands Water | 6,009 | 0 (not detected) |
| Geneva City Pws | 5,924 | 0 (not detected) |
| Aqua Ohio - Village Of Jefferson | 3,226 | 0 (not detected) |
| Roaming Shores Village Pws | 1,764 | 0 (not detected) |
| Orwell Village Pws | 1,660 | 8 ppb |
| Andover Village Pws | 1,019 | 2.07 ppb |
| Rock Creek Village | 667 | 0.8 ppb |
| Dfc Mobile Home Park | 85 | 0 (not detected) |
Next steps for Jefferson, OH
Look up your address in Ashtabula County Water System'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 Ashtabula County Water System 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. The lead result guide covers how utilities pick the homes they sample. Small systems behave differently: why small systems go over more often.