The Department of Ecology issued the new aquatic plant and algae management general permit. The permit covers the discharge of products used to control aquatic plants and algae in Washington lakes. The permit also allows treatment of emergent plants along roadsides and ditch banks. Control products include aquatic herbicides, algaecides, biological clarification products, aquatic dyes, adjuvants, and nutrient inactivation products such as alum. http://apps.leg.wa.gov/documents/laws/wsr/2011/04/11-04-082.htm.