Roof cover with no sidewalls or concrete floor with curb. Protected from surface water runoff. Bedding provided to soak up leakage from manure. Roof cover with no sidewalls, has earthen floor on silt loam, clay loam, or silty clay soils. Water table or fractured bedrock deeper than 20 feet.
Roof cover with no sidewalls, has earthen floor on sand or sandy loam soil.
Water table or fractured bedrock shallower than 20 feet. All upslope surface water and roof runoff water is diverted from animal waste areas. Most upslope surface water and roof runoff water is diverted from animal waste areas. No surface water diverted. Some roof runoff water collected and diverted from animal waste areas.