Scio Pws, OH
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (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 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.
About Scio Pws
Scio Pws serves about 690 people through 375 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 groundwater, in Harrison County, Ohio. EPA system ID: OH3401312; phone on file: 740-945-5571. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Scio Pws's lead record
Against the period ending 2024 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Scio Pws is 9.67 ppb across 12 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 0 (not detected) |
| 2024 | 0 (not detected) |
| 2023 | 3.21 ppb |
| 2022 | 0 (not detected) |
| 2021 | 0 (not detected) |
| 2020 | 4.76 ppb |
| 2019 | 0 (not detected) |
| 2019 | 1.04 ppb |
| 2018 | 2.69 ppb |
| 2017 | 2.6 ppb |
| 2017 | 9.67 ppb |
| 2016 | 7.81 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. Scio Pws's reported as 0 (not detected) sits at the 19th percentile in Ohio and the 24th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Nearby utilities
14 other systems share Harrison County; 8 of them have a higher latest lead result than Scio Pws. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Cadiz Village Pws | 3,353 | 1.21 ppb |
| Tri-County Water Authority | 2,370 | 2.1 ppb |
| Hopedale Village Pws | 984 | 0 (not detected) |
| Jewett Village | 650 | 1.75 ppb |
| Bowerston Village Pws | 483 | 0 (not detected) |
| Freeport Village Pws | 400 | 1.76 ppb |
| New Athens Pws | 367 | 0 (not detected) |
| Hcwsd-Unionvale-Kenwood | 257 | 0 (not detected) |
| Hcwsd - Georgetown | 242 | 6.8 ppb |
| Hcwsd - East Cadiz | 191 | 0 (not detected) |
What to do in your house
Look up your address in Scio Pws'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 Scio 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. 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.