1979 - Andover - Drinking Water Treatment Plant Tour by Massachusetts Dept. of Environmental Protection ● portfotolio

Massachusetts Dept. of Environmental Protection: 1979-12 Andover MA water treatment plant tour (24)

Massachusetts Dept. of Environmental Protection: 1979-12 Andover MA water treatment plant tour (23)

Massachusetts Dept. of Environmental Protection: 1979-12 Andover MA water treatment plant tour (19)

Massachusetts Dept. of Environmental Protection: 1979-12 Andover MA water treatment plant tour (16)

Massachusetts Dept. of Environmental Protection: 1979-12 Andover MA water treatment plant tour (13)

Massachusetts Dept. of Environmental Protection: 1979-12 Andover MA water treatment plant tour (10)