Mont Alto Municipal Authority, PA
No lead results on file with EPA
Latest 90th-percentile lead: no result on file. The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. EPA's database has no Lead and Copper Rule results for this system. Without them there is nothing to go on, so a tap test is the only way to know.
Who runs the water here
Mont Alto Municipal Authority serves about 1,705 people through 790 service connections, which makes it a small 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: PA7280040; phone on file: 717-749-5808. They can tell you what your service line is made of and whether they pay to replace it.
Nearby utilities
29 other systems share Franklin County. 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 | - |
| Antrim Township Municipal Auth | 1,149 | - |
| Zullinger Water System Wtma | 1,080 | - |
Your move
Test your own tap with a certified lab first-draw sample; Mont Alto, 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 Mont Alto Municipal Authority 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.