Mansfield City, 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.
Mansfield City at a glance
Mansfield City serves about 51,000 people through 17,862 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 Richland County, Ohio. EPA system ID: OH7002914; phone on file: 419-755-9628. They can tell you what your service line is made of and whether they pay to replace it.
Lead results over time
That is down 2 ppb from 2 ppb in the period ending 2025. The highest 90th-percentile result EPA holds for Mansfield City is 3.8 ppb across 10 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 0 (not detected) |
| 2025 | 2 ppb |
| 2024 | 0 (not detected) |
| 2023 | 2.7 ppb |
| 2022 | 0 (not detected) |
| 2021 | 3.5 ppb |
| 2020 | 2.2 ppb |
| 2019 | 2.6 ppb |
| 2018 | 2.1 ppb |
| 2016 | 3.8 ppb |
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. Mansfield City's reported as 0 (not detected) sits at the 44th percentile in Ohio and the 40th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Other water systems in Richland County
44 other systems share Richland County; 33 of them have a higher latest lead result than Mansfield City. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Shelby City | 9,453 | 0 (not detected) |
| Ontario City | 6,756 | 2.7 ppb |
| Lexington Village | 4,825 | 0 (not detected) |
| Madison Water District | 2,050 | 0 (not detected) |
| Bellville Village | 1,918 | 0.9 ppb |
| Plymouth Village | 1,874 | 0 (not detected) |
| Eastview Community Water Association | 1,100 | 2.6 ppb |
| Butler Village | 940 | 1.1 ppb |
| Aqua Ohio - Mansfield System #01 | 813 | 0 (not detected) |
| Aqua Ohio - Mansfield System #07 | 766 | 0 (not detected) |
Your move
Look up your address in Mansfield City'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 Mansfield City 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. A zero today does not rule out a jump later - the rules are tightening in 2027.