You will need the following information:
Critical Storage Period:
The critical storage period is the number of continuous days manure and wastewater cannot be land applied or otherwise used. This may occur during winter or during the growing season when applications cannot be made to crops. In Utah, the critical winter storage period may range from 45 to 150 days depending on location (see Table 1 - Approximate days of winter storage required) and your manure handling/treatment system.
Storage requirements for wastewater may be longer than for solids depending on the type of wastewater application system. Contact your local NRCS office for assistance in estimating the number of days of storage needed for your area and situation.
Daily Manure Production Estimate for Each Livestock Type:
Manure production estimates for various livestock types are presented in Table 2 - Livestock type and daily manure volume production.