How big does a retention pond have to be?

How big does a retention pond have to be?

For these reasons, the U.S. Environmental Protection Agency says that “permanent pool depth should not exceed 20 feet. The optimal depth ranges between three and nine feet for most regions.” Howard likes to make his at least six to eight feet deep.

Is it bad to live next to a retention pond?

While there are some advantages to living near a retention pond—peace and quiet, green space, fewer neighbors nearby, and a decreased risk of flooding—potential buyers have other factors to consider. For example, there is a constant danger of drowning for families with young children.

How do you maintain a retention pond?

Keep Ponds and Basins Clean

1. Trash, dirt, or excessive sediment clogging or obstructing outlets.
2. Erosion on the slopes or at the top of the head wall.
3. Excessive vegetation around and surrounding the pond.
4. Pilot channels should be clear and open.
5. Mechanical device functionality (pumps, flood gates, etc.).

How far should a retention pond be from a house?

Even if you’re not working with any specific guidelines from your zoning department or permit office, consider leaving a barrier of at least 50 to 100 feet between your home and a small pond.

Can a retention pond overflow?

With an increase in rain, flooding can be a fear. Retention ponds are often called storm water management ponds.

Does a retention pond increase property value?

Any stormwater runoff would normally soak into the ground in a natural environment. These ponds are a solution to significant stormwater runoff issues, such as flooding and pollution. Another significant benefit is an increase in property values. Retention ponds can increase a rural home’s property by up to 15%.

Do retention ponds attract mosquitoes?

Because 95 percent of mosquitos lay their eggs and hatch in the perimeter of your retention pond. Not only are cattails a noxious aquatic weed that has millions of seeds, but they also have shallow root structures that make it ideal as a factory for mosquitoes.

Do retention ponds need to be cleaned?

Retention ponds need cleaning and plant trimming every few months, but they also need a full dredging for silt removal at least once every year.

Do retention ponds smell?

Unmaintained retention ponds can become a source of unpleasant smells as well as mosquito breeding grounds, toxins in the groundwater and cause other aesthetic issues. If your retention pond is giving off an unpleasant smell, call the experts at PowerVac today.

What is the difference between a detention and a retention pond?

The difference between a retention pond and a detention pond is simple. The retention pond is designed to always have water in it and a detention pond only detains the water during rainy periods. Both retention and detention ponds are designed to help control the runoff and limit flooding during high water times.

How are retention ponds built?

Retention ponds are basins constructed for holding water. Typically this is water that is runoff from higher elevation. Often they are built near areas of development such as larger buildings or parking lots. You’ve probably seen retention ponds without knowing what their real purpose is.

How deep are retention ponds?

The detention pond’s depth influences its water quality. Generally, detention ponds should be deep enough to maintain open water areas and limit sediment resus- pension by current, wind, or waves. Typically, the average depth should be at least 4-5 feet and maximum depth at least 8 feet.

What is the definition of a retention pond?

A retention pond is a man-made pond or reservoir that is designed to catch runoff water from higher elevation areas. The structures can be either temporary or permanent depending on the circumstances and the volume of water at issue. Most are built to be sloped basins that capitalize on gravity and the natural flow…