"Water runoff" refers to the flow of water that occurs when rain or melted snow does not soak into the ground, but instead moves over the surface, collecting in streams, rivers, or flowing down slopes.
Also, raw sewage may reach coastal waters when water runoff from big storms causes sewage treatment plants to bypass treatment. (waterencyclopedia.com)
The location is on track toward a target to reduce storm water runoff by 75 percent in summer and 40 percent in winter, he added. (scientificamerican.com)
In addition, farmers can add organic matter to soil and control water runoff, improving water retention and soil fertility. (carbonbrief.org)