Aqua Pa Friendship, 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.
Who runs the water here
Aqua Pa Friendship serves about 8,800 people through 3,370 service connections, which makes it a medium-sized system under EPA's size classes. It is privately owned and draws groundwater, in Chester County, Pennsylvania. EPA system ID: PA1150137; phone on file: 610-645-1122. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Every lead result on file
Against the period ending 2025 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Aqua Pa Friendship is 0 ppb across 5 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 0 (not detected) |
| 2025 | 0 (not detected) |
| 2022 | 0 (not detected) |
| 2019 | 0 (not detected) |
| 2016 | 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. Aqua Pa Friendship's reported as 0 (not detected) sits at the 14th percentile in Pennsylvania and the 37th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Neighbouring systems
59 other systems share Chester County; 7 of them have a higher latest lead result than Aqua Pa Friendship. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Pa American Royersford | 49,508 | 2 ppb |
| Aqua Pa West Chester | 48,600 | 0 (not detected) |
| Pa American Coatesville | 36,960 | 2 ppb |
| Aqua Pa Uwchlan | 35,518 | 2.21 ppb |
| Phoenixville Water Dept | 16,599 | 1 ppb |
| Downingtown Water Authority | 9,900 | 2 ppb |
| Aqua Pa Spring Run | 8,151 | 0 (not detected) |
| Kennett Square Mun Water Works | 6,328 | 0 (not detected) |
| Oxford Borough | 5,280 | 0 (not detected) |
| London Grove Twp Mun Auth | 4,770 | 0 (not detected) |
Next steps for Bryn Mawr, PA
Look up your address in Aqua Pa Friendship'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 Aqua Pa Friendship 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. The lead result guide covers how utilities pick the homes they sample. A zero today does not rule out a jump later - the rules are tightening in 2027.