Mount Pleasant Pws, OH
Exceeded the action level in the past
Latest 90th-percentile lead: 0.7 ppb (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 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.
About Mount Pleasant Pws
Mount Pleasant Pws serves about 450 people through 260 service connections, which makes it a very small system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws groundwater, in Jefferson County, Ohio. EPA system ID: OH4101712. Ask the utility on your bill for your address in their service line inventory.
Every lead result on file
Against the period ending 2025 (1.5 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Mount Pleasant Pws is 19.4 ppb across 14 monitoring periods, 1 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 0.7 ppb |
| 2025 | 1.5 ppb |
| 2025 | 0.5 ppb |
| 2024 | 0.6 ppb |
| 2024 | 1.4 ppb |
| 2023 | 0.4 ppb |
| 2023 | 1.1 ppb |
| 2022 | 2.2 ppb |
| 2022 | 0.8 ppb |
| 2021 | 1 ppb |
| 2021 | 3.3 ppb |
| 2020 | 19.4 ppb over 15 |
| 2019 | 0 (not detected) |
| 2018 | 0 (not detected) |
Where this result ranks
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. Mount Pleasant Pws's 0.7 ppb sits at the 50th percentile in Ohio and the 46th nationally (higher means more lead).
Neighbouring systems
17 other systems share Jefferson County; 10 of them have a higher latest lead result than Mount Pleasant Pws. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Steubenville, City Of | 17,000 | 7.1 ppb |
| Jefferson Co W And S District - M | 13,983 | 0.6 ppb |
| Toronto Pws | 5,676 | 0 (not detected) |
| Wintersville Village Pws | 3,924 | 0 (not detected) |
| Mingo Junction Pws | 3,350 | 1.4 ppb |
| Jefferson Co W And S District- A | 2,635 | 4.7 ppb |
| Brilliant Water And Sewer | 2,000 | 2.7 ppb |
| Tiltonsville Pws | 1,372 | 0.5 ppb |
| Yorkville Village Pws | 1,019 | 2.9 ppb |
| Jefferson Co.San.Dist.-G Pws | 990 | 1.2 ppb |
Next steps for Mt Pleasant, OH
Test your own tap with a certified lab first-draw sample; Mt Pleasant, 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 Mount Pleasant Pws 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. Why an old exceedance still matters: over the limit before, under it now.