Concerns about pollution sources influencing New Mexico's habitats are primarily focused on aquatic habitats. Pollution factors such as agricultural chemicals, livestock and dairy groundwater contamination, and solid waste can negatively affect the long-term persistence of SGCN in affected habitats. Runoff from livestock feedlots, dairy operations, and urban road surfaces introduces nutrients and numerous contaminants to aquatic habitats. Petrochemical pollutants reach aquatic habitats from various refinery operations. Mercury and petrochemicals have been identified in many of New Mexico's reservoirs. Typically, pollution sources are regulated by various federal and state agencies, such as the New Mexico Environment Department, Surface Water Quality Bureau, which monitors water quality in New Mexico's reservoirs. However, more information on the extent and sources of pollution in New Mexico will aid conservation decisions.