District Headquarters

50 Elm St, Dedham, MA 02026

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Information on Lead

Information on Lead

The Dedham-Westwood Water District has demonstrated compliance with state and federal lead in drinking water standards.

This is done when at least 90% of samples collected as MADEP approved select sample sites(30 homes) have a lead level below the so called Action Level of 0.015 milligrams per liter of lead. At the 90th percentile, the sample collected in our system contained 0.003 mg/l of lead in the Spring sampling round of 2019 and 0.02 mg/l of lead in the Fall sampling round of  2019.

The prior sampling event, in 2016, had a lead level result of 0.004 mg/l at the 90th percentile.

LEAD AND COPPER RESULTS 2019 Sampling Events (PDF)

Presented above is data from our spring and fall 2019 sampling events. A total of 61 samples were collected at DEP approved sites.

2016 Lead and Copper Water Quality Compliance Testing Results

Presented above is data from the 2016 lead and copper 90th percentile compliance report.


Water Resource Protection

Make simple changes around your home to help stop water pollution.

Like most towns in Massachusetts, Dedham and Westwood have many acres of pavement and concrete. When rain hits these hard surfaces, it washes pollutants like pet waste, bacteria, oil, litter, fertilizer, and grass clippings into storm drains, which then lead directly to local waterways.

Water that flows into storm drains is NOT treated—and pollutants on the street flow directly into streams and ponds, affecting the health of drinking water, wildlife and recreation.

Keep reading…

There will be a Board of Water Commissioners Special Business Meeting on Thursday June 30, 2022 at 6:30 PM.  This meeting will be virtual only. Please see the agenda page, which is posted when available, for more information including exemptions for executive session and joining instructions.
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