Photo Gallery – CAFOs building new impoundment New culverts replace single crushed culvert, eliminating ponding in feed alley Flared end sections and concrete armor help reduce erosion at outfall New HDPE-lined impoundment Road elevated to divert runoff to impoundment Dual-walled HDPE pipes before riprap armoring is installed Riprap armor installed at outlet to minimize erosion New impoundment with external berm to divert clean water New drainage culvert and swale seeded and mulched to minimize erosion Excavation to determine lithology and depth to groundwater Slab at new impoundment inlet facilitates solid setting while allowing unimpeded vehicle access along road Armored plunge pool below steep pipe drop Fabricated drop structure to be installed between settling channel and new impoundment Erosion control seeding and mulching