Piper Johnson grew up in the Richmond District, often heading to the beach to swim and surf with her family and dog, Teddy. Now a junior at Sacred Heart Cathedral Preparatory, she still loves the beach. But she saw it — and smelled it — in a different way when storms hit the city in […] The post This Local High Schooler Is Building a Sewage Sensor to Help Swimmers and Surfers appeared first on The Frisc.
