Berwick Water Department, ME
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (monitoring period 2022-2024). 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
Berwick Water Department serves about 2,845 people through 1,138 service connections, which makes it a small system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws surface water, in York County, Maine. EPA system ID: ME0090150; phone on file: 207-596-3373. 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 2021 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Berwick Water Department is 7 ppb across 8 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2024 | 0 (not detected) |
| 2021 | 0 (not detected) |
| 2020 | 0 (not detected) |
| 2019 | 7 ppb |
| 2018 | 0 (not detected) |
| 2017 | 1 ppb |
| 2017 | 2 ppb |
| 2016 | 7 ppb |
How Berwick Water Department compares
Of the 358 Maine systems with a lead result, the median latest reading is 1.5 ppb; 2 are over 15 ppb right now and 40 have gone over at some point. Berwick Water Department's reported as 0 (not detected) sits at the 28th percentile in Maine and the 32nd nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Neighbouring systems
34 other systems share York County; 19 of them have a higher latest lead result than Berwick Water Department. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Maine Water Company Biddeford Saco Div | 42,508 | 0 (not detected) |
| Kennebunk, Kennebunkport & Wells Wd | 35,663 | 1 ppb |
| Kittery Water District | 14,478 | 2 ppb |
| Sanford Water District | 14,328 | 4 ppb |
| York Water District | 13,675 | 2 ppb |
| South Berwick Water District | 3,722 | 0 (not detected) |
| Lake Arrowhead Community Inc | 3,500 | 2 ppb |
| North Berwick Water District | 2,125 | 4 ppb |
| Maine Water Company Kezar Falls Division | 1,115 | 0 (not detected) |
| Alfred Water District | 783 | 4 ppb |
Your move
Look up your address in Berwick Water Department'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 Berwick Water Department 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. A zero today does not rule out a jump later - the rules are tightening in 2027.