The Department of Energy and Environment proposes amendments to D.C. Mun. Regs. tit. 21 §1199, Water Quality Standards. The proposed amendments would change the water quality standards to include updates to the aquatic life criteria for ammonia and cadmium, and human health criteria. Written comments will be accepted until October 14, 2017. See http://www.dcregs.dc.gov/Gateway/NoticeHome.aspx?NoticeID=6718722.