South Deerfield Water Supply District, MA
Exceeded the action level in the past
Latest 90th-percentile lead: 3 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.
South Deerfield Water Supply District at a glance
South Deerfield Water Supply District serves about 3,800 people through 1,570 service connections, which makes it a medium-sized 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: MA1074001; phone on file: 4136653540. Call that number and ask whether your address has a lead, galvanized or unknown service line.
South Deerfield Water Supply District's lead record
Against the period ending 2024 (3.9 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for South Deerfield Water Supply District is 18 ppb across 14 monitoring periods, 1 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 3 ppb |
| 2024 | 3.9 ppb |
| 2023 | 12.8 ppb over 10 |
| 2023 | 18 ppb over 15 |
| 2023 | 3.3 ppb |
| 2021 | 6.9 ppb |
| 2020 | 3 ppb |
| 2019 | 3 ppb |
| 2018 | 3.4 ppb |
| 2018 | 4.3 ppb |
| 2018 | 4.1 ppb |
| 2017 | 2.9 ppb |
| 2017 | 7 ppb |
| 2016 | 6 ppb |
How South Deerfield Water Supply District compares
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. South Deerfield Water Supply District's 3 ppb sits at the 70th percentile in Massachusetts and the 82nd nationally (higher means more lead).
Other water systems in Franklin County
24 other systems share Franklin County; 10 of them have a higher latest lead result than South Deerfield Water Supply 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 |
| 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) |
| Northfield Mt Hermon School | 750 | 2.64 ppb |
What to do in your house
Test your own tap with a certified lab first-draw sample; South Deerfield, 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 South Deerfield Water Supply 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. More in what a past exceedance means today.