Greenfield Water Department, MA
Lead detected, under the action levels
Latest 90th-percentile lead: 3.32 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. 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.
Who runs the water here
Greenfield Water Department serves about 17,768 people through 5,786 service connections, which makes it a large 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: MA1114000; phone on file: 4137721539. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Lead results over time
Against the period ending 2020 (3.4 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Greenfield Water Department is 6.2 ppb across 5 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 3.32 ppb |
| 2020 | 3.4 ppb |
| 2019 | 1.2 ppb |
| 2017 | 2.2 ppb |
| 2016 | 6.2 ppb |
Against other Massachusetts systems
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. Greenfield Water Department's 3.32 ppb sits at the 74th percentile in Massachusetts and the 84th nationally (higher means more lead).
Other water systems in Franklin County
24 other systems share Franklin County; 9 of them have a higher latest lead result than Greenfield Water Department. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| 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) |
| 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; Greenfield, 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 Greenfield Water Department 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. The action level is dropping - the 10 ppb rule from 2027.