Washington Twp Muni Auth, PA
Lead detected, under the action levels
Latest 90th-percentile lead: 1.84 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.
About Washington Twp Muni Auth
Washington Twp Muni Auth serves about 6,134 people through 2,505 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 Franklin County, Pennsylvania. EPA system ID: PA7280026; phone on file: 717-552-7860. 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 (2.21 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Washington Twp Muni Auth is 3.8 ppb across 4 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 1.84 ppb |
| 2022 | 2.21 ppb |
| 2019 | 0 (not detected) |
| 2016 | 3.8 ppb |
Against other Pennsylvania systems
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. Washington Twp Muni Auth's 1.84 ppb sits at the 45th percentile in Pennsylvania and the 68th nationally (higher means more lead).
Nearby utilities
29 other systems share Franklin County; 7 of them have a higher latest lead result than Washington Twp Muni Auth. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Chambersburg Boro Water Sys | 31,048 | 4.7 ppb |
| Guilford Water Auth | 28,135 | 0 (not detected) |
| Boro Of Waynesboro | 13,200 | 6 ppb |
| Bear Valley Joint Auth | 12,589 | 3.89 ppb |
| Greencastle Area Water Auth | 5,500 | 5.21 ppb |
| Franklin System York Water | 4,400 | 2 ppb |
| Mercersburg Muni Water Auth | 2,350 | - |
| Mont Alto Municipal Authority | 1,705 | - |
| Antrim Township Municipal Auth | 1,149 | - |
| Zullinger Water System Wtma | 1,080 | - |
Next steps for Waynesboro, PA
Test your own tap with a certified lab first-draw sample; Waynesboro, 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 Washington Twp Muni 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. Why sampled homes are the worst-case ones is in the guide to reading the number. Size matters more than most people expect: small vs large water systems.