Tewksbury Hospital, MA
Exceeded the action level in the past
Latest 90th-percentile lead: reported as 0 (not detected) (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. The latest result is under the action level, but this system has gone over 15 ppb before. Lead comes from pipes, not the source water, so a home with a lead service line can still be exposed. Test your own tap.
About Tewksbury Hospital
Tewksbury Hospital serves about 2,500 people through 30 service connections, which makes it a small system under EPA's size classes. It is owned by the state and draws groundwater, in Middlesex County, Massachusetts. EPA system ID: MA3295001; phone on file: 9788517321. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Lead results over time
That is down 6 ppb from 6 ppb in the period ending 2024. The highest 90th-percentile result EPA holds for Tewksbury Hospital is 16 ppb across 12 monitoring periods, 1 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 0 (not detected) |
| 2024 | 6 ppb |
| 2023 | 3.7 ppb |
| 2023 | 16 ppb over 15 |
| 2022 | 1.7 ppb |
| 2021 | 1.2 ppb |
| 2020 | 9.5 ppb |
| 2019 | 4.1 ppb |
| 2019 | 0.6 ppb |
| 2018 | 0.94 ppb |
| 2017 | 3.3 ppb |
| 2017 | 5.5 ppb |
How Tewksbury Hospital 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. Tewksbury Hospital's reported as 0 (not detected) sits at the 16th percentile in Massachusetts and the 32nd nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Other water systems in Middlesex County
94 other systems share Middlesex County; 72 of them have a higher latest lead result than Tewksbury Hospital. 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 |
Your move
Test your own tap with a certified lab first-draw sample; Tewksbury, 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 Tewksbury Hospital 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. More in what a past exceedance means today.