Aqua Ohio - Timberbrook Pw, OH
Lead detected, under the action levels
Latest 90th-percentile lead: 2.7 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.
Who runs the water here
Aqua Ohio - Timberbrook Pw serves about 865 people through 279 service connections, which makes it a small system under EPA's size classes. It is privately owned and draws groundwater, in Franklin County, Ohio. EPA system ID: OH2502712; phone on file: 614-882-6586. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Every lead result on file
Against the period ending 2024 (2.1 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Aqua Ohio - Timberbrook Pw is 3.5 ppb across 7 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 2.7 ppb |
| 2024 | 2.1 ppb |
| 2023 | 2.9 ppb |
| 2022 | 2.8 ppb |
| 2021 | 2 ppb |
| 2020 | 3.5 ppb |
| 2017 | 3.4 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. Aqua Ohio - Timberbrook Pw's 2.7 ppb sits at the 85th percentile in Ohio and the 79th nationally (higher means more lead).
Neighbouring systems
25 other systems share Franklin County; 1 of them has a higher latest lead result than Aqua Ohio - Timberbrook Pw. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Columbus Public Water System | 1,309,468 | 1.2 ppb |
| Westerville City Pws | 39,000 | 1 ppb |
| Reynoldsburg City Pws | 37,847 | 2.1 ppb |
| Gahanna City Pws | 33,258 | 0.5 ppb |
| Bexley City Pws | 14,250 | 0 (not detected) |
| Jefferson Water And Sewer District Pws | 11,294 | 2 ppb |
| Canal Winchester City Pws | 9,286 | 2.1 ppb |
| Sanitary District #4 | 8,575 | 1.3 ppb |
| Aqua Ohio - Blacklick | 7,100 | 0 (not detected) |
| Aqua Ohio - Huber Ridge Pws | 5,393 | 0 (not detected) |
Next steps for Westerville, OH
Test your own tap with a certified lab first-draw sample; Westerville, 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 Aqua Ohio - Timberbrook Pw 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.