Brockton Water Department, MA
Lead detected, under the action levels
Latest 90th-percentile lead: 4 ppb (monitoring period 2021-2023). 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.
Brockton Water Department at a glance
Brockton Water Department serves about 105,788 people through 24,488 service connections, which makes it a very large system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws surface water, in Plymouth County, Massachusetts. EPA system ID: MA4044000; phone on file: 5085807865. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Brockton Water Department's lead record
Against the period ending 2022 (3 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Brockton Water Department is 4 ppb across 3 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2023 | 4 ppb |
| 2022 | 3 ppb |
| 2017 | 1 ppb |
How Brockton Water Department 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. Brockton Water Department's 4 ppb sits at the 79th percentile in Massachusetts and the 88th nationally (higher means more lead).
Neighbouring systems
44 other systems share Plymouth County; 7 of them have a higher latest lead result than Brockton Water Department. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Plymouth Water Department | 47,100 | 2.5 ppb |
| Weir River Water System | 45,339 | 0 (not detected) |
| Marshfield Water Department | 34,000 | 4 ppb |
| Abington/Rockland Joint Wtr. Works | 33,387 | 4 ppb |
| Mattapoisett River Valley W.D. | 29,600 | - |
| Bridgewater Water Department | 28,633 | 3 ppb |
| Wareham Fire District | 20,102 | 2 ppb |
| Scituate Water Division | 19,297 | 2 ppb |
| Pembroke Water Division Dpw | 18,175 | 3 ppb |
| Duxbury Water Department | 16,387 | 4.4 ppb |
What to do in your house
Test your own tap with a certified lab first-draw sample; Brockton, 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 Brockton 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. Systems that went over once often dip back under; here is what that means.