North Sewickley Mun Water Auth, PA
Lead detected, under the action levels
Latest 90th-percentile lead: 3.7 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.
North Sewickley Mun Water Auth at a glance
North Sewickley Mun Water Auth serves about 4,578 people through 1,892 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 Beaver County, Pennsylvania. EPA system ID: PA5040010; phone on file: 724-846-7480. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Every lead result on file
That is up 1.24 ppb from 2.46 ppb in the period ending 2022. The highest 90th-percentile result EPA holds for North Sewickley Mun Water Auth is 3.7 ppb across 4 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 3.7 ppb |
| 2022 | 2.46 ppb |
| 2019 | 2 ppb |
| 2016 | 1.88 ppb |
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. North Sewickley Mun Water Auth's 3.7 ppb sits at the 63rd percentile in Pennsylvania and the 86th nationally (higher means more lead).
Neighbouring systems
21 other systems share Beaver County; 4 of them have a higher latest lead result than North Sewickley Mun Water Auth. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Beaver Falls Muni Auth | 49,500 | 1.3 ppb |
| Ambridge Water Auth | 19,500 | 9.3 ppb |
| Center Twp Water Auth | 19,000 | 1.38 ppb |
| Mun Water Auth Of Aliquippa | 15,685 | 33.5 ppb |
| Creswell Heights Jt Auth | 15,000 | 0 (not detected) |
| Brighton Twp Muni Auth | 7,920 | 0 (not detected) |
| Monaca Boro Water Dept | 6,500 | 3.36 ppb |
| Beaver Boro Muni Auth | 5,799 | 2.6 ppb |
| New Sewickley Twp Muni Auth | 4,276 | 1.35 ppb |
| Baden Boro Water Dept | 3,948 | 0 (not detected) |
Your move
Test your own tap with a certified lab first-draw sample; Beaver Falls, 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 North Sewickley Mun 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. The action level is dropping - the 10 ppb rule from 2027.