BROOKSVILLE—Last month the Environmental Protection Agency released its yearly update on the ongoing remediation of the former Callahan Mine in Harborside.
The report outlined specific progress on several areas of the mine site, including stabilizing the tailings containment and impoundment dam and construction of a new access road using waste rock from the site.
The remediation of the site began in 2004 and has been organized in three separate projects that the EPA refers to as “operable units.”
The first operable unit involved clean-up of arsenic and lead contamination in neighboring residential properties along with containment of polychlorinated biphenyl or “PCBs” in the former mine operation area.
This operable unit was completed in 2013, according to the EPA.
The operable unit currently underway involves stabilizing and covering mine tailings and dredging followed by long-term containment of contaminated sediments in a confined aquatic disposal “CAD” cell located in the former mine pit.
The final goal of the current operable unit will be the restoration of vegetation and habitat on the site.
The entire mine site occupies nearly 120 acres along the east side of Goose Falls Road, incorporating several salt marshes and estuary ponds.
Mine activity on the peninsula began in the late 19th century, as prospecting for copper, iron, lead, zinc and silver took off and a flurry of small speculative mines dotted the area.
Esta historia es de la edición February 11, 2021 de The Weekly Packet.
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Esta historia es de la edición February 11, 2021 de The Weekly Packet.
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Holly Eaton announces candidacy for House District 15
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Two from Ellsworth nominated for open Senate seat
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St. Valentine's show features artists from around the Peninsula and Island
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Blue Hill's Elliott Architects wins design awards
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2021 lobster harvest the most valuable in the history of the fishery
75% increase over 2020
Wilson Museum celebrates Bowdoin's centennial
Join the Wilson Museum in celebrating the centennial of Maine Maritime Academy’s schooner Bowdoin, the official vessel of the State of Maine, at programs that revisit Donald MacMillan’s Arctic explorations and delve into the art of shipsmithing.
GSA announces new staffas school resumes
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Falls Bridge construction project scheduled
Project estimated at $10.5 million
Women's Skillet Toss
Intercontinental & Greater Hancock County Championship Saturday, September 4 , 3:30 p.m., Grandstand Track
The Largest Pumpkin or Squash Contest
Judging Friday, 1 p.m., Exhibition Hall
