SKETCH YOUR PROPERTY Make a map of your property including the following existing features (the Site Sketch Grid on page 62 can help you make your map): ??? Impervious surfaces: roofs, driveways, walkways, sheds, and other areas ??? Roof downspouts ??? Lawn & landscaped areas ??? Buffer areas ??? Steep slopes ??? Stormwater practices ??? Streams or ponds ??? Stormwater flow paths - best seen durin