Warren Water District, MA
Lead detected, under the action levels
Latest 90th-percentile lead: 4.5 ppb (monitoring period 2024-2024). 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.
Warren Water District at a glance
Warren Water District serves about 2,289 people through 643 service connections, which makes it a small system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws groundwater, in Worcester County, Massachusetts. EPA system ID: MA1311000; phone on file: 4134369819. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Every lead result on file
That is up 3.3 ppb from 1.2 ppb in the period ending 2023. The highest 90th-percentile result EPA holds for Warren Water District is 4.5 ppb across 5 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2024 | 4.5 ppb |
| 2023 | 1.2 ppb |
| 2023 | 1.3 ppb |
| 2021 | 3.7 ppb |
| 2016 | 1.29 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. Warren Water District's 4.5 ppb sits at the 81st percentile in Massachusetts and the 89th nationally (higher means more lead).
Other water systems in Worcester County
107 other systems share Worcester County; 15 of them have a higher latest lead result than Warren Water District. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Worcester Dpwp, Water Supply Division | 206,518 | 2 ppb |
| Fitchburg Dpw Division Of Water Supply | 41,946 | 5 ppb |
| Leominster Water Division | 41,683 | 2.8 ppb |
| Shrewsbury Water Department | 38,325 | 0 (not detected) |
| Milford Water Department | 30,379 | 1 ppb |
| Westborough Water Department | 21,567 | 1.8 ppb |
| Gardner Water Department | 21,381 | 8 ppb |
| Southbridge Water Department | 19,562 | 3 ppb |
| Holden Water Division, Dpw | 18,016 | 3.1 ppb |
| Webster Water Department | 17,776 | 3.7 ppb |
What to do in your house
Test your own tap with a certified lab first-draw sample; Warren, 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 Warren Water District 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. Why sampled homes are the worst-case ones is in the guide to reading the number. The action level is dropping - the 10 ppb rule from 2027.