The EPA features its Enforcement and Compliance History Online (ECHO), which will help you determine whether the EPA or other government agencies have conducted compliance inspections, and the violations and enforcement actions that came about as a result. You can view the data broken down by air, water, or hazardous waste, or just enter a zip code to see all inspections for that area. An e-mail update is also available for those who want to stay informed of significant changes to the site.