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Scott Sheehan, an environmental engineer with the 66th Civil Engineering Division, explains to Hanscom Middle School students how the bioretention pond outside the school performs during a presentation on base May 10. In addition to a tour of the school's green infrastructure, students and teachers participated along with other volunteers in cleaning the Shawsheen River as part of an Earth Day initiative postponed from last month. (U.S. Air Force photo by Mark Herlihy)


CE, HMS students celebrate Earth Day

Scott Sheehan, an environmental engineer with the 66th Civil Engineering Division, explains to Hanscom Middle School students how the bioretention pond outside the school performs during a presentation on base May 10. In addition to a tour of the school's green infrastructure, students and teachers participated along with other volunteers in cleaning the Shawsheen River as part of an Earth Day initiative postponed from last month. (U.S. Air Force photo by Mark Herlihy)

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