The problem of water pollution from small livestock producers (non-concentrated animal feeding operations) could be addressed through water quality regulations that apply to additional livestock producers. However, in adopting modified federal water quality regulations, the costs of mandatory controls led to the decision to exempt small producers. Thus, alternative non-water-quality state regulations may offer the best mechanism to address the problem of diffuse pollution from manure applications by small livestock producers. This paper proposes a disincentive to discourage farmers from engaging in practices that cause diffuse pollution. Farmers who fail to employ acceptable manure application measures would be disqualified from using the anti-nuisance defense of a state "right-to-farm" law. Before animal producers qualify for anti-nuisance protection for activities involving the application of manure, they would be required to be engaged in reasonable and prudent best management practices. Since many small producers live in urban fringe areas where nuisance lawsuits are a concern, this disincentive would be expected to lead to better manure application practices. In this manner, a government could reduce pollutants from manure applications thereby improving water quality.