College Corner Water, OH
Lead detected, under the action levels
Latest 90th-percentile lead: 1.6 ppb (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. 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 College Corner Water
College Corner Water serves about 387 people through 204 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 Preble County, Ohio. EPA system ID: OH6800311; phone on file: 513-524-2710. They can tell you what your service line is made of and whether they pay to replace it.
Every lead result on file
Against the period ending 2024 (1.2 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for College Corner Water is 4.2 ppb across 6 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 1.6 ppb |
| 2024 | 1.2 ppb |
| 2023 | 1.9 ppb |
| 2022 | 2.1 ppb |
| 2021 | 4.2 ppb |
| 2020 | 0 (not detected) |
How College Corner Water 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. College Corner Water's 1.6 ppb sits at the 69th percentile in Ohio and the 65th nationally (higher means more lead).
Other water systems in Preble County
11 other systems share Preble County; 4 of them have a higher latest lead result than College Corner Water. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Eaton Public Water System | 8,400 | 6.7 ppb |
| Lakengren Water Authority | 2,950 | 2.4 ppb |
| Camden, Village Of | 2,050 | 1.4 ppb |
| Lewisburg Village Pws | 1,800 | 0 (not detected) |
| New Paris Village Pws | 1,681 | 0 (not detected) |
| West Alexandria, Village Of | 1,385 | 3.8 ppb |
| Gratis Village Pws | 990 | 1.5 ppb |
| Eldorado, Village Of | 539 | 2 ppb |
| Verona, Village Of | 492 | 1 ppb |
| West Manchester, Village Of | 471 | 1.4 ppb |
Next steps for College Corner, OH
Test your own tap with a certified lab first-draw sample; College Corner, 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 College Corner Water 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. Size matters more than most people expect: small vs large water systems.