Maryland senators criticized regulations proposed by the Maryland Department of the Environment last month that would require the use of best available technology for nitrogen removal septic systems in new construction on land draining to the Chesapeake Bay or Atlantic Coastal Bays watershed. Current state regulations require nitrogen removal technology—without the “best available” language—for all new and replacement septic systems in the state’s Critical Area, land within 1,000 ft of tidal waters or wetlands.
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