Troy City Pws, OH
Lead detected, under the action levels
Latest 90th-percentile lead: 0.5 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.
Troy City Pws at a glance
Troy City Pws serves about 26,305 people through 11,457 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 groundwater, in Miami County, Ohio. EPA system ID: OH5501612; phone on file: 937-339-4826. They can tell you what your service line is made of and whether they pay to replace it.
Troy City Pws's lead record
Against the period ending 2025 (0.5 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Troy City Pws is 5.1 ppb across 5 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 0.5 ppb |
| 2025 | 0.5 ppb |
| 2022 | 0.7 ppb |
| 2019 | 0 (not detected) |
| 2016 | 5.1 ppb |
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. Troy City Pws's 0.5 ppb sits at the 48th percentile in Ohio and the 43rd nationally (higher means more lead).
Neighbouring systems
17 other systems share Miami County; 8 of them have a higher latest lead result than Troy City Pws. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Nawa | 29,974 | 3.2 ppb |
| Piqua City Pws | 20,354 | 0 (not detected) |
| West Milton Village Pws | 4,890 | 0 (not detected) |
| Miami Co-Camp Troy Pws | 3,813 | 0.7 ppb |
| Covington Village Pws | 2,718 | 0.9 ppb |
| Miami Co-N25a Extension | 2,367 | 0.4 ppb |
| Pleasant Hill Village Pws | 1,226 | 2.2 ppb |
| Bethel Township Water System Pws | 543 | 0 (not detected) |
| Miami Co-Deer Cliff Run Pws | 526 | 0 (not detected) |
| Laura Village Pws | 487 | 1.7 ppb |
What to do in your house
Test your own tap with a certified lab first-draw sample; Rossburg, 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 Troy 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. Systems that went over once often dip back under; here is what that means.