York Water Co, PA
Exceeded the action level in the past
Latest 90th-percentile lead: 3 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. The latest result is under the action level, but this system has gone over 15 ppb before. Lead comes from pipes, not the source water, so a home with a lead service line can still be exposed. Test your own tap.
About York Water Co
York Water Co serves about 206,762 people through 68,414 service connections, which makes it a very large system under EPA's size classes. It is privately owned and draws surface water, in York County, Pennsylvania. EPA system ID: PA7670100; phone on file: 717-718-7554. 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 2022 (2 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for York Water Co is 16 ppb across 7 monitoring periods, 1 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 3 ppb |
| 2022 | 2 ppb |
| 2019 | 3.51 ppb |
| 2018 | 8.54 ppb |
| 2017 | 9.4 ppb |
| 2017 | 8.14 ppb |
| 2016 | 16 ppb over 15 |
Where this result ranks
Of the 516 Pennsylvania systems with a lead result, the median latest reading is 2 ppb; 143 are over 15 ppb right now and 156 have gone over at some point. York Water Co's 3 ppb sits at the 61st percentile in Pennsylvania and the 83rd nationally (higher means more lead).
Other water systems in York County
43 other systems share York County; 4 of them have a higher latest lead result than York Water Co. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Hanover Muni Water Works | 40,900 | 2 ppb |
| Dover Twp Water Sys | 21,097 | 4.9 ppb |
| Red Lion Municipal Authority | 15,882 | 1 ppb |
| Dallastown Yoe Water Auth | 12,300 | 0 (not detected) |
| West Manchester Twp Auth | 9,960 | 2 ppb |
| Dillsburg Area Authority | 8,962 | 0 (not detected) |
| Veolia Newberry System | 6,480 | 0 (not detected) |
| Stewartstown Boro Water Auth | 5,206 | 0 (not detected) |
| Shrewsbury Borough | 4,727 | 2 ppb |
| New Freedom Boro Water Auth | 4,464 | 0 (not detected) |
What to do in your house
Test your own tap with a certified lab first-draw sample; York, PA 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 York Water Co 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. More in what a past exceedance means today.