At the Carmel Valley Community Planning Board’s Jan. 24 meeting, the board approved a large-scale storm flow storage and multi-pollutant treatment system in the Ashley Falls neighborhood as part of the city’s water quality improvement strategies. The project, located at the corner of Carmel Knolls and Pearlman Way, includes the construction of three reinforced concrete storm drain pipes for low-flow collection and a shallow biofiltration basin.The system will capture pollutants and stormwater runoff to protect the Los Peñasquitos Creek subwatershed.