Gahanna City Pws, OH
Lead detected, under the action levels
Latest 90th-percentile lead: 0.5 ppb (monitoring period 2022-2024). 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 Gahanna City Pws
Gahanna City Pws serves about 33,258 people through 10,638 service connections, which makes it a large system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws surface water, in Franklin County, Ohio. EPA system ID: OH2501303; phone on file: 614-342-4427. They can tell you what your service line is made of and whether they pay to replace it.
Gahanna City Pws's lead record
Against the period ending 2021 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Gahanna City Pws is 0.5 ppb across 5 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2024 | 0.5 ppb |
| 2021 | 0 (not detected) |
| 2021 | 0 (not detected) |
| 2018 | 0 (not detected) |
| 2018 | 0 (not detected) |
Where this result ranks
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. Gahanna City Pws's 0.5 ppb sits at the 49th percentile in Ohio and the 43rd nationally (higher means more lead).
Nearby utilities
25 other systems share Franklin County; 13 of them have a higher latest lead result than Gahanna City Pws. 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 |
| 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) |
| Aqua Ohio - Lake Darby | 3,562 | 0 (not detected) |
What to do in your house
Test your own tap with a certified lab first-draw sample; Glenford, 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 Gahanna City 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. The action level is dropping - the 10 ppb rule from 2027.