Guilford-Sangerville Utilities District, ME
Exceeded the action level in the past
Latest 90th-percentile lead: 2.5 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. The latest result is under the action level, but this system has gone over 15 ppb before. Lead comes from pipes, not the source water, so a home with a lead service line can still be exposed. Test your own tap.
Who runs the water here
Guilford-Sangerville Utilities District serves about 1,535 people through 614 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 Piscataquis County, Maine. EPA system ID: ME0090640; phone on file: 207-876-4598. They can tell you what your service line is made of and whether they pay to replace it.
Lead results over time
That is down 3.9 ppb from 6.4 ppb in the period ending 2024. The highest 90th-percentile result EPA holds for Guilford-Sangerville Utilities District is 42.7 ppb across 17 monitoring periods, 3 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 2.5 ppb |
| 2024 | 6.4 ppb |
| 2024 | 2 ppb |
| 2023 | 5.9 ppb |
| 2023 | 5.4 ppb |
| 2023 | 5.4 ppb |
| 2022 | 6.5 ppb |
| 2022 | 6.5 ppb |
| 2022 | 5.1 ppb |
| 2022 | 5.1 ppb |
| 2021 | 16 ppb over 15 |
| 2020 | 7.1 ppb |
| 2019 | 4.6 ppb |
| 2019 | 42.7 ppb over 15 |
| 2019 | 7.4 ppb |
| 2018 | 42.7 ppb over 15 |
| 2016 | 8.6 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. Guilford-Sangerville Utilities District's 2.5 ppb sits at the 69th percentile in Maine and the 78th nationally (higher means more lead).
Nearby utilities
7 other systems share Piscataquis County; 1 of them has a higher latest lead result than Guilford-Sangerville Utilities District. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Dover-Foxcroft Water District | 2,400 | 0 (not detected) |
| Milo Water District | 1,720 | 15 ppb |
| Maine Water Company Greenville Division | 1,335 | 0 (not detected) |
| Brownville Jct Water Dept | 663 | 1.5 ppb |
| Monson Utilities District | 298 | 1.4 ppb |
| Brownville Water Department | 253 | 1 ppb |
| Covered Bridge Apartments | 25 | 0 (not detected) |
What to do in your house
Test your own tap with a certified lab first-draw sample; Sangerville, 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 Guilford-Sangerville Utilities 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. What a 90th-percentile result does and does not tell you: how to read a lead result. More in what a past exceedance means today.