Most common farming and ranching practices, including "plowing, cultivating, seeding, minor drainage, harvesting for the production of food, fiber, and forest products"
"Construction or maintenance of farm or stock ponds or irrigation ditches, or the maintenance of drainage ditches"
"Agricultural stormwater discharges and return flows from irrigated agriculture"
"Temporary sediment basins on a construction site"
"Construction or maintenance of farm or forest roads or temporary roads for moving mining equipment"
Drainage ditches not constructed in streams and that flow only when it rains
Artificially irrigated areas that would revert to upland should irrigation cease
Artificial lakes or ponds constructed on dry land and used for agricultural purposes
Artificial ornamental waters created in uplands for primarily aesthetic reasons
Water-filled depressions created as a result of construction activity
Groundwater, shallow subsurface flow, tile drains
Gullies, rills, grass swales