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The gutters help direct rainfall into pipes that drain into the swales.

According to a city staff report, the city seeks to do so by filling fissures that have developed, constructing drainage swales that will divert runoff to the ocean and installing “dewatering wells” to extract groundwater.

The land here was laser-leveled, and workers carved a swale to give juvenile salmon a way in and out when the plain floods.

No home damage was reported, but the land movement had “undermined a paved terrace swale,” the report said.

“It took me two months end to end,” Bautista said, including gutters, hardscape, edging and building a trench to the swale in the backyard.