Aqua Pa Chalfont, 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.
About Aqua Pa Chalfont
Aqua Pa Chalfont serves about 5,900 people through 2,491 service connections, which makes it a medium-sized system under EPA's size classes. It is privately owned and draws groundwater, in Bucks County, Pennsylvania. EPA system ID: PA1090005; phone on file: 610-645-1122. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Every lead result on file
Against the period ending 2022 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Aqua Pa Chalfont is 3.82 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 | 3.82 ppb |
| 2016 | 0 (not detected) |
How Aqua Pa Chalfont 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. Aqua Pa Chalfont's reported as 0 (not detected) sits at the 10th percentile in Pennsylvania and the 35th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Other water systems in Bucks County
68 other systems share Bucks County; 11 of them have a higher latest lead result than Aqua Pa Chalfont. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Lower Bucks Co Joint Mun Auth | 63,007 | 0 (not detected) |
| Aqua Pa Bensalem | 59,001 | 0 (not detected) |
| Bcwsa Main Lower South | 52,621 | 0 (not detected) |
| Newtown Artesian Water Co | 38,500 | 0 (not detected) |
| Northampton Bucks Co Mun Auth | 36,750 | 1 ppb |
| Warminster Municipal Authority | 36,000 | 0 (not detected) |
| Pa American Water Co Yardley | 33,171 | 1 ppb |
| Aqua Pa Bristol | 28,727 | 0 (not detected) |
| Falls Twp Water & Sewer Dept | 24,400 | 1.6 ppb |
| Nwwa Warrington Township | 21,588 | 0.6 ppb |
Next steps for Bryn Mawr, PA
Look up your address in Aqua Pa Chalfont'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 Chalfont 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. Small systems behave differently: why small systems go over more often.