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Construction began April 7, 2005 on the Willis Avenue groundwater treatment facility which will stop contaminated groundwater from entering Onondaga Lake. Here, a perimeter trench is being dug as the first step in building the foundation wall of the treatment facility.

Construction began April 7, 2005 on the Willis Avenue groundwater treatment facility which will stop contaminated groundwater from entering Onondaga Lake. Here, a perimeter trench is being dug as the first step in building the foundation wall of the treatment facility.

Construction began April 7, 2005 on the Willis Avenue groundwater treatment facility which will stop contaminated groundwater from entering Onondaga Lake. Here, a perimeter trench is being dug as the first step in building the foundation wall of the treatment facility.