June 26, 2018 by Minnesota Pollution Control Agency
Recent heavy rains in southern Minnesota finds some livestock producers scrambling to stem overflow from livestock manure storage basins. Pollution problems include overflowing manure and wastewater storage structures and releases from underground and above-ground storage tanks as well as open feedlots located in floodplains or in sensitive areas where runoff can enter surface waters.
Farmers must call the Minnesota Duty Officer immediately at (800) 422-0798 (calls answered 24/7) if their manure-storage facilities overflow, if manure enters surface waters or if their manure-storage structure is inundated by floodwaters. If their manure-storage facilities are in danger of overflowing, farmers can contact the MPCA at (800) 657-3864 or (651) 296-6300 (during regular business hours) and ask for a feedlot staff person. Farmers in feedlot delegated counties also may contact county feedlot staff.
To reduce the likelihood of an overflow, feedlot operators are encouraged to divert water from manure-storage facilities if possible. Manure stockpiles located in areas that could flood should be removed immediately.
While we can’t control weather, planning ahead helps to better deal with the impact of bad weather on manure management and land application. A little more investment in storage, conservation practices, and planning can be a very cost-effective form of insurance. It also reduces the risk of economic loss of nutrients from surface-applied manure without incorporation. Farmers with open feedlots should scrape-and-haul weekly if possible.
For more information about flooding and the environmental problems it can create, visit the minimizing flood risk page on the MPCA website.