The Preserve At Hopkinton Condo, MA
Lead detected, under the action levels
Latest 90th-percentile lead: 4.5 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. 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.
About The Preserve At Hopkinton Condo
The Preserve At Hopkinton Condo serves about 80 people through 8 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Middlesex County, Massachusetts. EPA system ID: MA2139008; phone on file: 5084351010. They can tell you what your service line is made of and whether they pay to replace it.
Lead results over time
Against the period ending 2026 (4 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for The Preserve At Hopkinton Condo is 15 ppb across 12 monitoring periods, none of them over 15 ppb (2 over 10 ppb).
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 4.5 ppb |
| 2026 | 4 ppb |
| 2026 | 15 ppb over 10 |
| 2023 | 15 ppb over 10 |
| 2022 | 5.5 ppb |
| 2022 | 7.5 ppb |
| 2021 | 3.5 ppb |
| 2021 | 2.5 ppb |
| 2020 | 2.5 ppb |
| 2020 | 6 ppb |
| 2020 | 3.5 ppb |
| 2017 | 4 ppb |
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. The Preserve At Hopkinton Condo's 4.5 ppb sits at the 81st percentile in Massachusetts and the 89th nationally (higher means more lead).
Other water systems in Middlesex County
94 other systems share Middlesex County; 16 of them have a higher latest lead result than The Preserve At Hopkinton Condo. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Lowell Regional Water Utility | 120,418 | 0 (not detected) |
| Cambridge Water Department | 118,214 | 8 ppb |
| Newton Water Dept. (Mwra) | 88,931 | 1.09 ppb |
| Somerville Water Dept. (Mwra) | 81,045 | 6.62 ppb |
| Framingham Water Dept. (Mwra) | 72,362 | 1.74 ppb |
| Malden Water Division (Mwra) | 66,263 | 9.74 ppb |
| Waltham Water Department | 65,218 | 2.24 ppb |
| Medford Water Dept. (Mwra) | 61,700 | 8.31 ppb |
| Everett Water Dept. (Mwra) | 49,075 | 1.25 ppb |
| Arlington Water Dept. (Mwra) | 46,308 | 2.68 ppb |
What to do in your house
Test your own tap with a certified lab first-draw sample; Boylston, 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 The Preserve At Hopkinton Condo whether it covers that cost before hiring anyone - many utilities now do. Its latest copper 90th percentile is 1490 ppb (copper action level 1,300 ppb).
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. The action level is dropping - the 10 ppb rule from 2027.