In 2009, the Sheila Dixon administration believed that it had found a way to keep historic Druid Lake intact while satisfying the Environmental Protection Agency’s new regulation to improve water quality nationwide.
The regulation, known as the Long Term 2 Enhanced Surface Water Treatment Rule or LT2, required reservoirs holding “finished,” or treated, water either to be enclosed with a roof or to install advanced chemical treatments before the water is discharged to homes and businesses.
For its small storage reservoirs at Guilford (near Loyola University) and East Towson (off Hillen Road), Baltimore’s Public Works Department opted to build covers over the facilities.
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