Storm water runoff is generated when precipitation from rain and snow-melt events flows over land or impervious surfaces and does not percolate into the ground. As the runoff flows over the land or impervious surfaces (paved streets, 停车场, and building rooftops), it accumulates debris, 化学物质, sediment or other pollutants that could adversely affect water quality if the runoff is discharged untreated. You can help reduce pollution by removing trash and debris from streets, wetponds, 涵洞和进水口. Recycle used motor oil. Scoop the poop from your pooch, picking up after your dog will prevent waste from polluting our water facilities. Bag or compost grass clippings and yard waste.

The City Can Determine The Relationship Of A Particular Property To The Floodplain.