Water Filtration and Collection
Rain gardens and bio-retention ponds are designed to assist in the collection and filtering of rain water run-off from hard surfaces that cannot absorb the water. When left uncontrolled this water run-off can lead to pollutants like fertilizers and other contaminants mixing into larger bodies of water harming wildlife and the eco-system within that body of water. By implementing a rain garden or a bio-retention pond, you will significantly reduce these hazards and add an attractive addition to your property.
A rain garden is designed to take advantage of rainfall and stormwater runoff. The layout and choice of plants are all part of creating a self-watering garden which helps protect the environment by reducing stormwater pollution. Rain gardens are often small in size and designed to withstand the extremes of moisture and concentrations of nutrients like Nitrogen and Phosphorus. Generally, a rain garden will be placed near a swale where water is naturally directed. By layering rock and sand underneath soil the contaminants in the water can be dispersed and filtered through these elements before entering the ground water.
A bio-retention pond is designed to hold greater amounts of run-off that collect in larger areas. Plants that are placed around a designed collection area can survive times of wet and dry periods. The water is held within this area and slowly drains into the ground water.