Mountaintop Reg Water Auth, PA
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (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 90th-percentile result was reported as 0 (not detected at the lab's limit). That says the sampled homes were low, not that your home has no lead service line. Check your utility's service line inventory for your address.
Mountaintop Reg Water Auth at a glance
Mountaintop Reg Water Auth serves about 3,456 people through 1,331 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 Centre County, Pennsylvania. EPA system ID: PA4140090; phone on file: 814-387-6707. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Every lead result on file
The highest 90th-percentile result EPA holds for Mountaintop Reg Water Auth is 0 ppb across 1 monitoring period, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 0 (not detected) |
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. Mountaintop Reg Water Auth's reported as 0 (not detected) sits at the 3rd percentile in Pennsylvania and the 33rd nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Neighbouring systems
42 other systems share Centre County; 8 of them have a higher latest lead result than Mountaintop Reg Water Auth. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| State College Boro Water Auth | 72,000 | 3.7 ppb |
| Penn State Univ | 37,000 | 10.8 ppb |
| Paw Philipsburg | 20,865 | 0 (not detected) |
| Bellefonte Borough Water Auth | 9,500 | 4.62 ppb |
| College Twp Water Authority | 6,000 | 2.4 ppb |
| Spring Twp Water Authority | 3,300 | 2.9 ppb |
| Walker Twp Water Assn | 3,250 | - |
| State Corr Inst Benner Twp | 2,850 | 2.69 ppb |
| Milesburg Borough Water Auth | 2,750 | - |
| Centre Hall Boro Water Dept | 1,900 | 43.27 ppb |
Your move
Look up your address in Mountaintop Reg Water Auth's service line inventory. If it says lead, galvanized or unknown, test your tap. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask Mountaintop Reg Water 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. Small systems behave differently: why small systems go over more often.