Lesson 23: Design and construction considerations for manure storage systems.

Regulatory compliance assessment:

Regulatory Issue	Is this issue addressed by regulations?	Is my livestock/poultry operation in compliance?
Are regulatory buffer distances required for a manure storage facility?	U.S. EPA State Local Name: Address: Phone No.:
Are separation distances required to wells, sinkholes, or surface water supplies?	Yes No If Yes, summarize:	Yes No Not Applicable Don't Know
Are there required flood plain or water table considerations in siting a manure storage facility?	Yes No If Yes, summarize:	Yes No Not Applicable Don't Know
Are there regulated site conditions specific to construction of an earthen manure impoundment?	Yes No If Yes, summarize:	Yes No Not Applicable Don't Know
Is a soil evaluation required to construct a manure storage facility?	Yes No If Yes, summarize:	Yes No Not Applicable Don't Know
Is a geologic evaluation below the storage structure required for a manure storage site?	Yes No If Yes, summarize:	Yes No Not Applicable Don't Know
Are engineering design and construction plans required for a manure storage facility?	Yes No If Yes, summarize:	Yes No Not Applicable Don't Know
Are engineering plans required to be prepared and stamped by a registered professional engineer?	Yes No If Yes, summarize:	Yes No Not Applicable Don't Know
Is a Construction Quality Assurance plan required of the contractor and/or designer?	Yes No If Yes, summarize:	Yes No Not Applicable Don't Know
Are safety requirements such as signage or fencing required for manure storage facilities?	Yes No If Yes, summarize:	Yes No Not Applicable Don't Know
Are there specific requirements for liner construction?	Yes No If Yes, summarize:	Yes No Not Applicable Don't Know
Are there permeability or seepage limits?	Yes No If Yes, summarize:	Yes No Not Applicable Don't Know
Are there pre-construction requirements for permeability testing of soils to be used in liner construction?	Yes No If Yes, summarize:	Yes No Not Applicable Don't Know
Are there post-construction requirements for permeability or seepage testing of completed liner?	Yes No If Yes, summarize:	Yes No Not Applicable Don't Know
For an existing non-permitted facility, are their requirements for documenting permeability or seepage rate?	Yes No If Yes, summarize:	Yes No Not Applicable Don't Know

Liner Testing Requirements
Test or Analysis	Required by my State	Regulatory Limit
Liquid Limit (LL) Minimum moisture content of soil/water mixture at which mixture behaves like a liquid (can be stirred).	Pre-construction? Yes No Post-construction? Yes No
Plastic Limit (PL) Minimum moisture content of soil/water mixture at which mixture behaves like a plastic solid (can be rolled into ball or thread).	Pre-construction? Yes No Post-construction? Yes No
Plasticity Index (PI) Liquid limit minus plastic limit. Indicates range of moisture contents that soil behaves as a plastic solid. A larger number is more ideal for constructing a liner.	Pre-construction? Yes No Post-construction? Yes No
Standard Proctor Density Maximum density of soil when compacted at optimum moisture. Soils compacted to 90%-95% of Proctor density are least permeable.	Pre-construction? Yes No Post-construction? Yes No
Coefficient of Permeability Soil characteristic that defines its resistance to the movement of liquid.	Pre-construction? Yes No Post-construction? Yes No
Seepage Rate Combines soil permeability, liner thickness, and pond depth to calculate flow of liquid through soil per unit of pond area.	Pre-construction? Yes No Post-construction? Yes No
Particle Size or Sieve Analysis Divides a soil sample into portions based on particle size. A larger fraction of smaller particles provides better material for a liner.	Pre-construction? Yes No Post-construction? Yes No

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