Decades after the nation’s capital began its historic cleanup, sanitary sewage still occasionally swamps the Potomac River. Are sewage systems also dumping human waste and other pollutants into waterways near you? This week’s TipSheet has the background on the problem of combined sewage overflow, as well as resources for finding out what’s happening near you.

They count in the tens, perhaps hundreds of thousands, and each one is a potential story. This week’s TipSheet looks at abandoned mines spread across the United States, many of them polluted, and with few cleanups underway. Find out what’s at stake, and get reporting resources.

Infrastructure is much in the news these days, with battles over politics and funding yielding stories for environment reporters. In play are a Trump plan, who gets to pick projects, who pays and much more. But in an election year, how likely are infrastructure plans to move forward? The backstory, with angles for environment and energy, plus what to watch for in 2018, in our Backgrounder on infrastructure.

Covering local infrastructure projects often means covering energy and the environment. This week’s TipSheet offers a companion to our special backgrounder on the national infrastructure story emerging out of Washington. We’ve got dozens of resources and links for finding infrastructure news and information from Congress, executive agencies, infrastructure organizations and environmental groups.

Somewhere near you is a toxic waste site. And as the EPA brings the Superfund cleanup program back into its sights, TipSheet helps you cover this perpetual problem. Info on cleanup funding and priority-setting, resources to locate nearby sites, questions to ask to dig into your Superfund story and more.