Manure and Milkhouse Washwater Storage and Handling

Where problems exist, farm managers must clearly identify the resources and options that are available to correct them. The next step is to choose the appropriate best management practice. Setting priorities involves striking a balance between production goals, economic costs and environmental protection.  If a new system is needed, here are a few ideas to consider.

Manure can be stored and handled as a solid or as a liquid. Snow melt and rain water can be diverted from the manure storage by eavestroughs or with a roofed structure.  

A properly sized concrete tank with safety fencing is an acceptable was to store liquid manure and other waste waters.

Contaminated waters and milkhouse washwater can be contained with curbs and walls or stored in a separate earthen pond.

Be sure to satisfy all current regulations in the design and placement of the structure.

Another option for milkhouse washwater is to treat the waste in properly-designed and managed sediment tank and treatment trench system.

A concrete-walled storage area with a sloped floor will store solid manure and divert contaminated liquids to a separate storage.

A well-managed sediment tank and treatment trench system, similar to a household septic system, will provide years of service for most dairy operations. For the best results, locate treatment in a protected area with good drainage and no equipment traffic. To prolong the life of the system, remove milk solids before releasing the washwater to the sediment tank.

Refer to the following BMP books for further information:

• Managing Crop Nutrients
• Nutrient Management Planning

Best Management Practices: A First Look