Author Archives: Kim kastens

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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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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Unanimous vote in favor of Conant land purchase

There was standing room only at the Acton Water District special district meeting for the vote on whether to authorize the district to purchase 11.23 acres of land in the groundwater protection zones for the Conant 1 and 2 wells. Green Acton President Debra Simes read Green Acton’s position statement. The vote was unanimous in support of the purchase. 

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Green Acton position on AWD purchase of Conant Land

Green Acton, by consensus of its Directors, has adopted the following position:
Green Acton urges Acton citizens to vote “yes” on Article 1 at the Acton Water District Special Meeting (October 10, 7:30pm, Public Safety Building). Continue reading

What happened at the Acton Water Workshop?

On September 22, 2018, Acton held its first “Water Workshop.” Representatives from the Board of Selectmen, the Acton Water District, Town staff, and selected Town committees worked together in small groups to consider five scenarios about possible future developments related to water in Acton.

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Mark Your Calendar for Two Important Water Events

Two interesting events about water in Acton are coming up this fall. Continue reading