Us Coast Guard Station-Jonesport, ME
Exceeded the action level in the past
Latest 90th-percentile lead: 1 ppb (monitoring period 2026-2026). 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.
About Us Coast Guard Station-Jonesport
Us Coast Guard Station-Jonesport serves about 25 people through 10 service connections, which makes it a very small system under EPA's size classes. It is federally owned and draws surface water, in Washington County, Maine. EPA system ID: ME0091830; phone on file: 207-873-5164. 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 2025 (1.7 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Us Coast Guard Station-Jonesport is 154.4 ppb across 16 monitoring periods, 2 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 1 ppb |
| 2025 | 1.7 ppb |
| 2025 | 5.2 ppb |
| 2024 | 18 ppb over 15 |
| 2024 | 1.6 ppb |
| 2023 | 4 ppb |
| 2023 | 1.9 ppb |
| 2022 | 5.3 ppb |
| 2021 | 2.81 ppb |
| 2021 | 2.83 ppb |
| 2020 | 2.21 ppb |
| 2019 | 6.11 ppb |
| 2018 | 1.81 ppb |
| 2018 | 1.93 ppb |
| 2017 | 154.4 ppb over 15 |
| 2016 | 8.9 ppb |
How Us Coast Guard Station-Jonesport 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. Us Coast Guard Station-Jonesport's 1 ppb sits at the 39th percentile in Maine and the 50th nationally (higher means more lead).
Other water systems in Washington County
21 other systems share Washington County; 10 of them have a higher latest lead result than Us Coast Guard Station-Jonesport. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Calais Water Dept | 2,775 | 2.4 ppb |
| Passamaquoddy Water District | 2,125 | 0.8 ppb |
| Lubec Water District | 1,775 | 0.81 ppb |
| Baileyville Utilities District | 1,688 | 3.68 ppb |
| Machias Water Company | 1,390 | 2.4 ppb |
| Indian Township Tribal Water System | 535 | 0 (not detected) |
| Milbridge Water District | 405 | 1.5 ppb |
| Danforth Water District | 313 | 5 ppb |
| Quantabacook Water District | 303 | 0.62 ppb |
| Addison Point Water District | 168 | 0 (not detected) |
Next steps for Waterville, ME
Test your own tap with a certified lab first-draw sample; Waterville, 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 Us Coast Guard Station-Jonesport whether it covers that cost before hiring anyone - many utilities now do. Its latest copper 90th percentile is 1500 ppb (copper action level 1,300 ppb).
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.