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Stormwater

What you should know about storm water Detention Tanks

September 24th, 2013

What is classified as “Storm water” Storm water is any form of precipitation, including rain and snow melt that has come into contact with the earth, or any other surface. This water will evaporate, seep into the ground, or be […]

What is classified as “Storm water”

Storm water is any form of precipitation, including rain and snow melt that has come into contact with the earth, or any other surface. This water will evaporate, seep into the ground, or be absorbed by vegetation. If it doesn’t, storm water will become surface runoff, flowing off the land and into storm drains, streams, rivers or lakes.

Storm water can come from all types of land, whether it is agricultural, residential, industrial or commercial.

Why are Good Storm water Detention Methods Important?

Storm water can be very problematic. Firstly, due to the volume and timing of the surface runoff water and secondarily, due to the potential pollution that it may be carrying.

In an environment uninterrupted by human development, water is naturally processed through the water cycle. The earth’s atmosphere continually absorbs water from the earth’s surface, purifies it and then precipitation returns it to be used for vegetation growth. Eventually the water is once again evaporated and the cycle begins again.

However when human development alters the surface of the earth (with the addition of hard surfaces, such as roads and buildings) we are inevitably interfering with water’s ability to be absorbed back into the soil. In essence, we are interrupting the natural water cycle.

The construction of storm sewers for rapid drainage as well as grading and paving techniques, further alters the established storm water flow path and affects the natural water absorption process. This can result in soil erosion as well as the transportation of toxic debris and chemicals, including oil and grease, fertilizers, pesticides, animal faeces and other refuse and contamination.

The need for effective strategies to prevent storm water pollution and process storm water in a way that returns it safely back to the natural water cycle, is becoming increasingly recognised.  You will also find more useful information about storm water solutions here.

What are the advantages of Storm water Detention Tanks?

APD Stomwater Detention Tank

There are many advantages to using Detention Tanks as a means of storm water management. It supports environmental sustainability by diminishing the creation of polluted storm water thus reducing the environmental impacts on lakes, streams and rivers.

A well designed and correctly installed underground Detention Tank will intercept silt, floating refuse, and other contaminants, thereby reducing health risks. It will additionally store and then release in a controlled manner, the purified water at a rate more conducive to natural processing.

Effective storm water management potentially contributes to community safety by reducing the risk of urban flooding and erosion. It can be used as a resource and cost-cutting exercise, as human population demand exceeds the availability of consumable water. If water detention and other efficient techniques were more widely used, urban environments could in theory become self-sustaining in terms of water.

For help and advice when it comes to installing your own Storm water Detention Tank, be sure to speak to the friendly staff at APD, Auckland’s respected experts in the field of Storm water Detention.