Hcwsd-Piedmont Pws, OH
Lead detected, under the action levels
Latest 90th-percentile lead: 8 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. Lead was measured in sampled homes but the 90th percentile is under both action levels. EPA's health goal for lead is zero, so test your own tap if your home was built before 1986 or anyone in it is pregnant or a young child.
About Hcwsd-Piedmont Pws
Hcwsd-Piedmont Pws serves about 178 people through 73 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Harrison County, Ohio. EPA system ID: OH3401212; phone on file: 740-942-0411. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Lead results over time
That is up 3.33 ppb from 4.67 ppb in the period ending 2025. The highest 90th-percentile result EPA holds for Hcwsd-Piedmont Pws is 8 ppb across 11 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 8 ppb |
| 2025 | 4.67 ppb |
| 2024 | 0 (not detected) |
| 2023 | 0 (not detected) |
| 2022 | 0 (not detected) |
| 2021 | 0.59 ppb |
| 2020 | 1.47 ppb |
| 2019 | 7.9 ppb |
| 2018 | 4.1 ppb |
| 2017 | 4.33 ppb |
| 2016 | 3.75 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. Hcwsd-Piedmont Pws's 8 ppb sits at the 99th percentile in Ohio and the 96th nationally (higher means more lead).
Other water systems in Harrison County
14 other systems share Harrison County; 0 of them have a higher latest lead result than Hcwsd-Piedmont 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) |
| Scio Pws | 690 | 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 |
Next steps for Cadia, OH
Test your own tap with a certified lab first-draw sample; Cadia, 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 Hcwsd-Piedmont 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. Systems that went over once often dip back under; here is what that means.