Aqua Ohio - Mansfield System #08, OH
Exceeded the action level in the past
Latest 90th-percentile lead: 1.1 ppb (monitoring period 2025-2025). 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.
Aqua Ohio - Mansfield System #08 at a glance
Aqua Ohio - Mansfield System #08 serves about 170 people through 66 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Richland County, Ohio. EPA system ID: OH7003212; phone on file: 330-832-5764. They can tell you what your service line is made of and whether they pay to replace it.
Aqua Ohio - Mansfield System #08's lead record
That is up 1.1 ppb from 0 ppb in the period ending 2024. The highest 90th-percentile result EPA holds for Aqua Ohio - Mansfield System #08 is 32 ppb across 15 monitoring periods, 1 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 1.1 ppb |
| 2024 | 0 (not detected) |
| 2023 | 3.2 ppb |
| 2022 | 0 (not detected) |
| 2021 | 0 (not detected) |
| 2021 | 0 (not detected) |
| 2020 | 0 (not detected) |
| 2020 | 0 (not detected) |
| 2019 | 0 (not detected) |
| 2018 | 0 (not detected) |
| 2018 | 0 (not detected) |
| 2017 | 0 (not detected) |
| 2017 | 3.8 ppb |
| 2016 | 32 ppb over 15 |
| 2016 | 2.9 ppb |
How Aqua Ohio - Mansfield System #08 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. Aqua Ohio - Mansfield System #08's 1.1 ppb sits at the 59th percentile in Ohio and the 57th nationally (higher means more lead).
Other water systems in Richland County
44 other systems share Richland County; 21 of them have a higher latest lead result than Aqua Ohio - Mansfield System #08. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Mansfield City | 51,000 | 0 (not detected) |
| 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) |
Your move
Test your own tap with a certified lab first-draw sample; Massillon, OH 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 Aqua Ohio - Mansfield System #08 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. Why an old exceedance still matters: over the limit before, under it now.