Category Archives: Water

Materials in support of Water Committee meetings

For 18 November 2018
Water Committee meeting:

(A)  1,4-Dioxane & Superfund sites
(B) Nagog Pond developments
(C) Committee business and liaison reports

 

Missed the 1,4-Dioxane Panel? View it here.

On Oct. 25, 2018, Acton residents benefited from a crash course on 1,4-Dioxane in Acton’s groundwater and drinking water.

From left to right: Moderator Kim Kastens and panelists Matt Mostoller, Dan Groher, and Diane Manganaro. Photo by Norm Strahle.

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Has Acton’s 1,4-Dioxane situation been getting better or worse?

The previous post looked at the 1.5-year-old effort to divert 1,4-Dioxane in the Nuclear Metals, Inc. (NMI) plume before it can reach the public water supply. This post looks at a longer time frame, and asks whether dioxane levels in the Acton public water supply wells have been getting better or worse over the scale of a decade.

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The intervention to divert Nuclear Metal’s 1,4-Dioxane from reaching the public water supply

As discussed in earlier Green Acton posts, there is a plume of 1,4-Dioxane flowing from the Nuclear Metals, Inc. (NMI) Superfund Site, passing under the Assabet River, and impacting the water quality at the Assabet 1 public water supply well. Fortunately, there is a pro-active remediation effort underway to intercept and treat this contaminated water.

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How can the NMI dioxane plume go underneath the Assabet River?

One of the more surprising aspects of Acton’s 1,4-dioxane situation is that the contaminant plume coming down from the NMI Superfund site goes underneath the Assabet River and thus reaches the Acton Water District’s Assabet 1 public water supply well.

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The 1,4-Dioxane Plume from the NMI Superfund Site

Nuclear Metals, Inc. was a company that made depleted uranium munitions for the Department of Defense at a 46-acre site on Rt. 62 in Concord, just across the Concord–Acton town line. These activities resulted in significant contamination of the soil, sediment, and groundwater, and the site is now part of the federal Superfund program. Of concern to Acton, there is a plume of 1,4-Dioxane traveling through the groundwater, passing underneath the Assabet River, and reaching the Assabet 1 public water supply well in the southeast corner of Acton.

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1,4-Dioxane

1,4-Dioxane is an organic compound that was widely used as a solvent and stabilizer in industrial applications during the late 20th century. Continue reading

Green Acton/LWV Event: Panel Discussion of 1,4-Dioxane in Acton’s Water

The Green Acton Water Committee and the Acton-area League of Women Voters are sponsoring an educational panel discussion about 1,4-Dioxane in Acton’s water supply.

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Water Quality

Acton’s waters contain many materials in them other than pure H2O. Some of these are natural and others are introduced through human processes. This page indexes information about the quality of the groundwater, surface waters, and drinking water of Acton.

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Water Committee

The Water committee generally meets on the second Sunday of every month in the Acton Memorial library. The committee welcomes new participants. The committee can be reached at water-core@greenacton.org.  Continue reading