Upper Saucon Twp Water Supply, 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.
Upper Saucon Twp Water Supply at a glance
Upper Saucon Twp Water Supply serves about 7,300 people through 3,149 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 surface water, in Lehigh County, Pennsylvania. EPA system ID: PA3390077; phone on file: 610-282-1171. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Lead results over time
Against the period ending 2022 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Upper Saucon Twp Water Supply is 0 ppb across 4 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 0 (not detected) |
| 2022 | 0 (not detected) |
| 2019 | 0 (not detected) |
| 2016 | 0 (not detected) |
How Upper Saucon Twp Water Supply 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. Upper Saucon Twp Water Supply's reported as 0 (not detected) sits at the 12th percentile in Pennsylvania and the 36th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Neighbouring systems
38 other systems share Lehigh County; 8 of them have a higher latest lead result than Upper Saucon Twp Water Supply. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Lca Allentown Division | 118,000 | 7 ppb |
| Lca Wlsa Central Division | 47,693 | 2 ppb |
| Swt Main System | 14,500 | 6 ppb |
| Emmaus Borough Public Water | 14,000 | 3 ppb |
| Whitehall Twp Authority | 13,063 | 4 ppb |
| Salisbury Twp Water System | 8,522 | 3 ppb |
| Catasauqua Mun Water Works | 6,598 | 5 ppb |
| Slatington Borough Water Sys | 4,450 | 0 (not detected) |
| Macungie Borough Authority | 3,039 | - |
| Lca North Whitehall Division | 2,910 | - |
What to do in your house
Look up your address in Upper Saucon Twp Water Supply'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 Upper Saucon Twp Water Supply 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. Small systems behave differently: why small systems go over more often.