West Manchester Twp Auth, PA
Lead detected, under the action levels
Latest 90th-percentile lead: 2 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.
West Manchester Twp Auth at a glance
West Manchester Twp Auth serves about 9,960 people through 3,851 service connections, which makes it a medium-sized system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws groundwater, in York County, Pennsylvania. EPA system ID: PA7670101; phone on file: 717-764-3624. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Lead results over time
Against the period ending 2022 (2 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for West Manchester Twp Auth is 2 ppb across 4 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 2 ppb |
| 2022 | 2 ppb |
| 2019 | 0 (not detected) |
| 2016 | 0 (not detected) |
How West Manchester Twp Auth compares
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. West Manchester Twp Auth's 2 ppb sits at the 50th percentile in Pennsylvania and the 73rd nationally (higher means more lead).
Nearby utilities
43 other systems share York County; 5 of them have a higher latest lead result than West Manchester Twp Auth. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| York Water Co | 206,762 | 3 ppb |
| 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) |
| 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) |
Your move
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 West Manchester Twp Auth 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.