Butler Co. Water District 2 Pws, OH
Lead detected, under the action levels
Latest 90th-percentile lead: 3 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.
Butler Co. Water District 2 Pws at a glance
Butler Co. Water District 2 Pws serves about 116,572 people through 43,457 service connections, which makes it a very large system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws surface water, in Butler County, Ohio. EPA system ID: OH0900303; phone on file: 513-887-3929. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Butler Co. Water District 2 Pws's lead record
That is up 3 ppb from 0 ppb in the period ending 2025. The highest 90th-percentile result EPA holds for Butler Co. Water District 2 Pws is 3.9 ppb across 6 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 3 ppb |
| 2025 | 0 (not detected) |
| 2024 | 3.9 ppb |
| 2023 | 0 (not detected) |
| 2020 | 1.5 ppb |
| 2017 | 2.94 ppb |
How Butler Co. Water District 2 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. Butler Co. Water District 2 Pws's 3 ppb sits at the 89th percentile in Ohio and the 83rd nationally (higher means more lead).
Nearby utilities
11 other systems share Butler County; 1 of them has a higher latest lead result than Butler Co. Water District 2 Pws. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Hamilton Public Water System | 62,447 | 0 (not detected) |
| Middletown City Pws | 51,229 | 1.14 ppb |
| Fairfield City Pws | 44,907 | 0 (not detected) |
| Southwest Regional Water District | 42,856 | 1.4 ppb |
| Oxford City Pws | 24,000 | 2.4 ppb |
| Monroe City Pws | 15,600 | 0.61 ppb |
| Trenton City Pws | 13,012 | 2.5 ppb |
| New Miami Village Pws | 3,200 | 1.1 ppb |
| Catalina Mobile Home Park | 1,280 | 0.7 ppb |
| Seven Mile Village Pws | 1,000 | 1.9 ppb |
Next steps for Hamilton, OH
Test your own tap with a certified lab first-draw sample; Hamilton, 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 Butler Co. Water District 2 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. Why sampled homes are the worst-case ones is in the guide to reading the number. The action level is dropping - the 10 ppb rule from 2027.