Salisbury Twp Water System, PA
Lead detected, under the action levels
Latest 90th-percentile lead: 3 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 Salisbury Twp Water System
Salisbury Twp Water System serves about 8,522 people through 3,297 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: PA3390062; phone on file: 610-797-4000. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Lead results over time
That is down 5 ppb from 8 ppb in the period ending 2022. The highest 90th-percentile result EPA holds for Salisbury Twp Water System is 8 ppb across 4 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 3 ppb |
| 2022 | 8 ppb |
| 2019 | 7 ppb |
| 2016 | 8 ppb |
How Salisbury Twp Water System 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. Salisbury Twp Water System's 3 ppb sits at the 59th percentile in Pennsylvania and the 83rd nationally (higher means more lead).
Other water systems in Lehigh County
38 other systems share Lehigh County; 5 of them have a higher latest lead result than Salisbury Twp Water System. 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 |
| Upper Saucon Twp Water Supply | 7,300 | 0 (not detected) |
| 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 | - |
Your move
Test your own tap with a certified lab first-draw sample; Allentown, 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 Salisbury Twp Water System 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.