State Line Mhp, PA
Above the federal action level
Latest 90th-percentile lead: 15.87 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. In the most recent monitoring period, more than 10% of the sampled homes measured above 15 ppb. Use a filter certified to NSF/ANSI 53 for lead for drinking and cooking now, and test your own tap.
Who runs the water here
State Line Mhp serves about 65 people through 38 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Franklin County, Pennsylvania. EPA system ID: PA7280015; phone on file: 717-860-9817. They can tell you what your service line is made of and whether they pay to replace it.
Lead results over time
The highest 90th-percentile result EPA holds for State Line Mhp is 15.87 ppb across 1 monitoring period, 1 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 15.87 ppb over 15 |
How State Line Mhp 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. State Line Mhp's 15.87 ppb sits at the 74th percentile in Pennsylvania and the 99th nationally (higher means more lead).
Other water systems in Franklin County
29 other systems share Franklin County; 1 of them has a higher latest lead result than State Line Mhp. 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 |
| Washington Twp Muni Auth | 6,134 | 1.84 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 | - |
What to do in your house
Use a filter certified to NSF/ANSI 53 for lead on the tap you drink and cook from, now, before you test. Then test your own tap. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask State Line Mhp 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. Size matters more than most people expect: small vs large water systems.