Monroe Water District, MA
Exceeded the action level in the past
Latest 90th-percentile lead: 6.2 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.
Who runs the water here
Monroe Water District serves about 55 people through 35 service connections, which makes it a very small system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws surface water, in Franklin County, Massachusetts. EPA system ID: MA1190000; phone on file: 4138844192. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Every lead result on file
That is up 2.8 ppb from 3.4 ppb in the period ending 2025. The highest 90th-percentile result EPA holds for Monroe Water District is 50 ppb across 20 monitoring periods, 6 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 6.2 ppb |
| 2025 | 3.4 ppb |
| 2025 | 8.05 ppb |
| 2025 | 39.5 ppb over 15 |
| 2025 | 6.9 ppb |
| 2024 | 6.2 ppb |
| 2023 | 4.6 ppb |
| 2023 | 5.65 ppb |
| 2023 | 15 ppb over 10 |
| 2022 | 7.6 ppb |
| 2022 | 2.45 ppb |
| 2021 | 5.3 ppb |
| 2021 | 4.7 ppb |
| 2020 | 11.1 ppb over 10 |
| 2020 | 32.2 ppb over 15 |
| 2020 | 12.6 ppb over 10 |
| 2020 | 34 ppb over 15 |
| 2019 | 16.4 ppb over 15 |
| 2019 | 19.2 ppb over 15 |
| 2019 | 50 ppb over 15 |
Where this result ranks
Of the 535 Massachusetts systems with a lead result, the median latest reading is 1.7 ppb; 13 are over 15 ppb right now and 66 have gone over at some point. Monroe Water District's 6.2 ppb sits at the 89th percentile in Massachusetts and the 94th nationally (higher means more lead).
Neighbouring systems
24 other systems share Franklin County; 4 of them have a higher latest lead result than Monroe Water District. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Greenfield Water Department | 17,768 | 3.32 ppb |
| Turners Falls Water Dept | 8,080 | 1.9 ppb |
| Orange Water Dept | 6,526 | 2.6 ppb |
| South Deerfield Water Supply District | 3,800 | 3 ppb |
| Sunderland Water District | 3,190 | 3.9 ppb |
| Shelburne Falls Fire District | 1,806 | 2.8 ppb |
| Bernardston Fire Water Dist | 1,471 | 1.3 ppb |
| Deerfield Fire District | 1,300 | 1.4 ppb |
| Whately Water Department | 900 | 1.5 ppb |
| Northfield Water District | 800 | 0 (not detected) |
What to do in your house
Test your own tap with a certified lab first-draw sample; Monroe, MA 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 Monroe 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. 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.