LAKELAND, FL (February 9, 2024) | The City of Lakeland owns and operates Se7en Wetlands, a constructed wetland treatment system that provides tertiary treatment, or final polishing for all of the City’s treated wastewater. Se7en Wetlands is reclaimed mining area that was mined for over 60 years. Mining operations stopped in 1984. Shortly after, the City of Lakeland Purchased the property and then constructed the wetland treatment system in 1987.