Warren Co. Pennyroyal Area Pws, OH
Lead detected, under the action levels
Latest 90th-percentile lead: 2.8 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 Warren Co. Pennyroyal Area Pws
Warren Co. Pennyroyal Area Pws serves about 950 people through 352 service connections, which makes it a small system under EPA's size classes. It is privately owned and draws groundwater, in Warren County, Ohio. EPA system ID: OH8301803; phone on file: 513-695-1377. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Warren Co. Pennyroyal Area Pws's lead record
That is up 2.1 ppb from 0.7 ppb in the period ending 2025. The highest 90th-percentile result EPA holds for Warren Co. Pennyroyal Area Pws is 7.1 ppb across 8 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 2.8 ppb |
| 2025 | 0.7 ppb |
| 2024 | 1.7 ppb |
| 2023 | 0.9 ppb |
| 2022 | 0 (not detected) |
| 2021 | 7.1 ppb |
| 2020 | 3 ppb |
| 2017 | 5.59 ppb |
How Warren Co. Pennyroyal Area Pws 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. Warren Co. Pennyroyal Area Pws's 2.8 ppb sits at the 86th percentile in Ohio and the 80th nationally (higher means more lead).
Other water systems in Warren County
14 other systems share Warren County; 2 of them have a higher latest lead result than Warren Co. Pennyroyal Area Pws. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Warren County | 99,000 | 1.4 ppb |
| Western Water Company | 39,508 | 1.3 ppb |
| Lebanon City | 20,700 | 1.2 ppb |
| Springboro Pws | 19,263 | 4.4 ppb |
| Franklin Public Water System | 11,690 | 2.1 ppb |
| South Lebanon City Pws | 7,792 | 0 (not detected) |
| Waynesville Village Pws | 4,100 | 1.6 ppb |
| Lebanon Correctional Institution | 3,410 | 4.4 ppb |
| Morrow Village Pws | 3,360 | 1.9 ppb |
| Carlisle City Pws | 1,675 | 1.7 ppb |
What to do in your house
Test your own tap with a certified lab first-draw sample; Lebanon, 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 Warren Co. Pennyroyal Area 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. Systems that went over once often dip back under; here is what that means.