Revere Water Division (Mwra), MA
Above the federal action level
Latest 90th-percentile lead: 31.9 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. In the most recent monitoring period, more than 10% of the sampled homes measured above 15 ppb. Use a filter certified to NSF/ANSI 53 for lead for drinking and cooking now, and test your own tap.
Revere Water Division (Mwra) at a glance
Revere Water Division (Mwra) serves about 62,186 people through 11,672 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 Suffolk County, Massachusetts. EPA system ID: MA3248000; phone on file: 7812868149. They can tell you what your service line is made of and whether they pay to replace it.
Lead results over time
That is up 24.21 ppb from 7.69 ppb in the period ending 2024. The highest 90th-percentile result EPA holds for Revere Water Division (Mwra) is 31.9 ppb across 12 monitoring periods, 1 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 31.9 ppb over 15 |
| 2024 | 7.69 ppb |
| 2021 | 7.81 ppb |
| 2020 | 8.26 ppb |
| 2020 | 14.8 ppb over 10 |
| 2019 | 11.2 ppb over 10 |
| 2018 | 5.42 ppb |
| 2018 | 11.8 ppb over 10 |
| 2017 | 5.28 ppb |
| 2016 | 8.05 ppb |
| 2016 | 11.2 ppb over 10 |
| 2016 | 10.1 ppb over 10 |
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. Revere Water Division (Mwra)'s 31.9 ppb sits at the 100th percentile in Massachusetts and the 100th nationally (higher means more lead).
Other water systems in Suffolk County
4 other systems share Suffolk County; 0 of them have a higher latest lead result than Revere Water Division (Mwra). If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Mwra | 2,580,000 | 5.9 ppb |
| Boston Water And Sewer Commission (Mwra) | 675,647 | 7.96 ppb |
| Chelsea Water Dept. (Mwra) | 40,787 | 5.38 ppb |
| Winthrop Water Division, (Mwra) | 19,316 | 16.4 ppb |
Your move
Use a filter certified to NSF/ANSI 53 for lead on the tap you drink and cook from, now, before you test. Then test your own tap. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask Revere Water Division (Mwra) 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. Size matters more than most people expect: small vs large water systems.