“In the City of Surrey, an absorbent landscape that slows, sinks and spreads rainwater is becoming a requirement for new development,” states David Hislop, Upland Drainage Engineer

“Soil depth is a primary water management tool for use by local government to adapt to a changing climate. A well-designed landscape with healthy topsoil helps communities through both wet and dry times. Soil is a sponge. It holds and slowly releases rainwater. This can limit runoff during rainy weather; and reduce irrigation water need during dry weather. In the City of Surrey, we specify a minimum soil depth of 300 mm," states David Hislop.