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2. Runoff curve number - Wikipedia

   en.wikipedia.org/wiki/Runoff_curve_number

   B Poor: <50% ground cover; Fair: 50-75% ground cover; Good: >75% ground cover. C Actual curve number is less than 30; use CN = 30 for runoff computation. D CN's shown were computed for areas with 50% woods and 50% grass (pasture) cover. Other combinations of conditions may be computed from the CN's for woods and pasture.

3. Impervious surface - Wikipedia

   en.wikipedia.org/wiki/Impervious_surface

   Homer and others (2007) indicate that about 76 percent of the conterminous United States is classified as having less than 1 percent impervious cover, 11 percent with impervious cover of 1 to 10 percent, 4 percent with an estimated impervious cover of 11 to 20 percent, 4.4 percent with an estimated impervious cover of 21 to 40 percent, and ...

4. Infiltration (hydrology) - Wikipedia

   en.wikipedia.org/wiki/Infiltration_(hydrology)

   Debris from vegetation such as leaf cover can also increase the infiltration rate by protecting the soils from intense precipitation events. In semi-arid savannas and grasslands, the infiltration rate of a particular soil depends on the percentage of the ground covered by litter, and the basal cover of perennial grass tufts.

5. How to keep ground bees away, and low-maintenance ground ...

   www.aol.com/keep-ground-bees-away-low-120320652.html

   Q: I would like to plant a low-maintenance ground cover in my tree border. I think once established, it would eliminate some mowing. My current thought is thyme, which shouldn’t need much ...

6. Drainage - Wikipedia

   en.wikipedia.org/wiki/Drainage

   Point drainage, which intercepts water at gullies (points). Gullies connect to drainage pipes beneath the ground surface, so deep excavation is required to facilitate this system. Support for deep trenches is required in the shape of planking, strutting or shoring. Channel drainage, which intercepts water along the entire run of the channel.

7. Mound system - Wikipedia

   en.wikipedia.org/wiki/Mound_system

   Mound systems are an alternative to the traditional rural septic system drain field. They are used in areas where septic systems are prone to failure from extremely permeable or impermeable soils, soil with the shallow cover over porous bedrock, and terrain that features a high water table.

8. My neighbor’s sump pump drains onto my property — now my yard ...

   www.aol.com/finance/neighbor-sump-pump-drains...

   Standard homeowners insurance policies generally won't cover flood damage unless you have a separate flood rider. However, there's a difference between flood damage and water damage.

9. Soil conservation - Wikipedia

   en.wikipedia.org/wiki/Soil_conservation

   Tree, shrubs and ground-cover are effective perimeter treatment for soil erosion prevention, by impeding surface flows. A special form of this perimeter or inter-row treatment is the use of a "grass way" that both channels and dissipates runoff through surface friction, impeding surface runoff and encouraging infiltration of the slowed surface ...