The Illinois Environmental Protection Agency drafted a general NPDES permit to set water quality and management standards for direct discharge from 1,500-gpd buried or recirculating sand filters, waste stabilization ponds, and aerobic treatment plants listed by NSF for Class I effluent. If the state does not adopt the standards, the legislation will prohibit direct discharge from these systems on Jan. 1, 2013.
Direct discharging represents more than 40 percent of annual state onsite permits, and estimates place the number of existing systems at more than 150,000.
Colorado
The Gilpin County Board of Health adopted new onsite regulations requiring more thorough site characterizations for
