Jaiden Lawrence, 7, visits a rain garden outside his residence in Lancaster, Pa., on May 24, 2018. "He's always in there playing," said Jaiden's mother Kalanea Lawrence, who moved to Mulberry Street about six months ago. Jaiden said he likes to water the plants as well as other flowers growing in the neighborhood. Lancaster has implemented 80 stormwater projects since 2012, including tree plantings, green roofs and permeable pavement to address a combined sewage and stormwater pollution problem that was sending hundreds of millions of gallons a year into the Conestoga River. The city's plan calls for green infrastrucutre to not only treat pollution but make the city more livable and sustainable. (Photo by Will Parson/Chesapeake Bay Program)