North Berwick Water District, ME
Lead detected, under the action levels
Latest 90th-percentile lead: 4 ppb (monitoring period 2023-2025). 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.
Who runs the water here
North Berwick Water District serves about 2,125 people through 850 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 groundwater, in York County, Maine. EPA system ID: ME0091120; phone on file: 207-676-3707. They can tell you what your service line is made of and whether they pay to replace it.
Lead results over time
That is up 2 ppb from 2 ppb in the period ending 2022. The highest 90th-percentile result EPA holds for North Berwick Water District is 8 ppb across 6 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 4 ppb |
| 2022 | 2 ppb |
| 2019 | 2 ppb |
| 2016 | 2 ppb |
| 2016 | 2 ppb |
| 2016 | 8 ppb |
Where this result ranks
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. North Berwick Water District's 4 ppb sits at the 84th percentile in Maine and the 88th nationally (higher means more lead).
Neighbouring systems
34 other systems share York County; 3 of them have a higher latest lead result than North Berwick Water District. 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 |
| Berwick Water Department | 2,845 | 0 (not detected) |
| Maine Water Company Kezar Falls Division | 1,115 | 0 (not detected) |
| Alfred Water District | 783 | 4 ppb |
Your move
Test your own tap with a certified lab first-draw sample; North Berwick, ME 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 Berwick Water District 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.