Monmouth Water Association, ME
Lead detected, under the action levels
Latest 90th-percentile lead: 1.5 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.
Monmouth Water Association at a glance
Monmouth Water Association serves about 588 people through 235 service connections, which makes it a small system under EPA's size classes. It is privately owned and draws surface water, in Kennebec County, Maine. EPA system ID: ME0091020; phone on file: 207-377-2712. They can tell you what your service line is made of and whether they pay to replace it.
Every lead result on file
That is down 3.4 ppb from 4.9 ppb in the period ending 2022. The highest 90th-percentile result EPA holds for Monmouth Water Association is 10.7 ppb across 4 monitoring periods, none of them over 15 ppb (1 over 10 ppb).
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 1.5 ppb |
| 2022 | 4.9 ppb |
| 2019 | 1.3 ppb |
| 2016 | 10.7 ppb over 10 |
How Monmouth Water Association 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. Monmouth Water Association's 1.5 ppb sits at the 52nd percentile in Maine and the 63rd nationally (higher means more lead).
Nearby utilities
26 other systems share Kennebec County; 8 of them have a higher latest lead result than Monmouth Water Association. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Kennebec Water District | 22,060 | 1.87 ppb |
| Greater Augusta Utility District | 13,750 | 1.1 ppb |
| Gardiner Water District | 9,000 | 3.44 ppb |
| Maine Water Company Oakland Division | 2,873 | 2 ppb |
| Winthrop Utilities District | 2,750 | 1.7 ppb |
| Hallowell Water District | 2,300 | 1.6 ppb |
| Clinton Water District | 1,013 | 0.5 ppb |
| Pine Ridge Village | 85 | 0.6 ppb |
| Averills Mobile Home Park | 83 | 0 (not detected) |
| Dirigo Mobile Home Park | 80 | 1.4 ppb |
What to do in your house
Test your own tap with a certified lab first-draw sample; Winthrop, 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 Monmouth Water Association 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.