"One tributary to Spavinaw Creek is improving, according to the Oklahoma Conservation Commission. The commission in January said water samples from Beaty Creek show its phosphorus levels dropped by 66 percent. The commission identified the transportation of poultry litter outside the watershed as one factor in the improvement."...news article.

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Farmers cut litter by 75%

"Research by the University of Arkansas at Fayetteville shows farmers cut the use of poultry litter as crop fertilizer by 75 percent in the Eucha-Spavinaw watershed over four years."

Read the full story here:

http://www.nwanews.com/adg/News/255764/