Limestone Water & Sewer District, ME
Lead detected, under the action levels
Latest 90th-percentile lead: 2.6 ppb (monitoring period 2023-2023). 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.
Limestone Water & Sewer District at a glance
Limestone Water & Sewer District serves about 875 people through 350 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 Aroostook County, Maine. EPA system ID: ME0090840; phone on file: 207-325-4788. They can tell you what your service line is made of and whether they pay to replace it.
Limestone Water & Sewer District's lead record
That is up 2.6 ppb from 0 ppb in the period ending 2022. The highest 90th-percentile result EPA holds for Limestone Water & Sewer District is 8.1 ppb across 4 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2023 | 2.6 ppb |
| 2022 | 0 (not detected) |
| 2019 | 8.1 ppb |
| 2016 | 2 ppb |
Against other Maine systems
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. Limestone Water & Sewer District's 2.6 ppb sits at the 70th percentile in Maine and the 78th nationally (higher means more lead).
Neighbouring systems
37 other systems share Aroostook County; 13 of them have a higher latest lead result than Limestone Water & Sewer District. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Presque Isle Utilities District | 6,128 | 1.5 ppb |
| Houlton Water Company | 4,735 | 3.4 ppb |
| Caribou Utilities District | 3,943 | 0 (not detected) |
| Madawaska Water District | 2,738 | 0 (not detected) |
| Van Buren Water District | 2,190 | 2.7 ppb |
| Fort Fairfield Utilities District | 2,025 | 1.8 ppb |
| Fort Kent W & W Department | 1,578 | 1.9 ppb |
| Mars Hill And Blaine Water Company | 1,500 | 3.4 ppb |
| Ashland Water & Sewer District | 713 | 2.3 ppb |
| Washburn Water & Sewer District | 688 | 2 ppb |
Your move
Test your own tap with a certified lab first-draw sample; Limestone, 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 Limestone Water & Sewer 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. The lead result guide covers how utilities pick the homes they sample. Systems that went over once often dip back under; here is what that means.