Mount St Marys Abbey, MA
Above the federal action level
Latest 90th-percentile lead: 15.6 ppb (monitoring period 2024-2026). 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.
Mount St Marys Abbey at a glance
Mount St Marys Abbey serves about 60 people through 7 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Norfolk County, Massachusetts. EPA system ID: MA4350003; phone on file: 5085281282. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Every lead result on file
That is up 9.6 ppb from 6 ppb in the period ending 2023. The highest 90th-percentile result EPA holds for Mount St Marys Abbey is 15.6 ppb across 4 monitoring periods, 1 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 15.6 ppb over 15 |
| 2023 | 6 ppb |
| 2020 | 7 ppb |
| 2017 | 9 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. Mount St Marys Abbey's 15.6 ppb sits at the 98th percentile in Massachusetts and the 99th nationally (higher means more lead).
Nearby utilities
38 other systems share Norfolk County; 0 of them have a higher latest lead result than Mount St Marys Abbey. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Tri Town Water Board | 856,000 | - |
| Quincy Water Dept. (Mwra) | 106,000 | 14.4 ppb |
| Brookline Water And Sewer Division | 63,191 | 2 ppb |
| Weymouth Water Department | 57,871 | 1.2 ppb |
| Randolph/Holbrook Joint Water Board | 46,519 | - |
| Dedham Westwood Water Dist. | 41,630 | 2 ppb |
| Braintree Water And Sewer Dept. | 39,143 | 4.8 ppb |
| Randolph Water Department | 35,114 | 3 ppb |
| Franklin Water Department | 33,706 | 5 ppb |
| Needham Water Dept | 31,664 | 2 ppb |
Next steps for Wrentham, MA
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 Mount St Marys Abbey 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.