We provide resources for understanding your manure application risk, including current set backs and local T-Sum calculations. 

T-Sum = 205! 3/2/2025

Nooksack 
AgWeather Net Station

Current Manure Setback = 10 ft minimum* May- August

*These are minimum distances and may need to be increased during un-seasonally wet periods. ​

*Big gun application should never be closer than 40 ft due to drift

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