A closer look at the crawling salt front: The salt front or salt line is where saltwater from the ocean and freshwater meet in the river. That boundary is typically somewhere around Wilmington ...

A closer look at the crawling salt front: The farther the line moves upstream, the closer it gets to drinking water intakes, which officials have worked for decades to avoid. The Delaware River ...

A closer look at the crawling salt front: What is the salt front? The salt front or salt line is where saltwater from the ocean and freshwater meet in the river. That boundary is typically ...