Dry Well Size Calculator

You have to factor in the percolation of the soil how well it percolates.

Dry well size calculator. If no soil permeability data is available assume a conservative value of 0 5 inches hr. Harris precast supplies new york city and long island with dry wells detention systems manholes catch basins trench drains and other related storm water products. Environmental protection agency in the code of federal regulations at 40. How to determine the correct size of a dry well.

Volume weight and other important information based on diamater and height of our products. If soil permeability data is available that measured value should be used in the calculations to size the dry well. How to calculate drywell size needed. How to size a dry well.

A dry well is a buried tank or a rock filled excavation used to capture storm drainage and drain storm water runoff to groundwater. The dry well is essentially a box filled with gravel and you need to find the height length and width of the box to store the runoff. Sizes and stats of our drain storm and solid rings. If you have slow percolating soil you re going to get a bigger dry well so that it acts as a reservoir when you collect the water and then it could take days for it to percolate into the subsoils.

If the neighbor is 3 higher put a block wall along that side to dam it out. Depending on the average amount of storm water you need to control you can choose install a dry well that s as small as a couple feet in depth and diameter or as large as several feet wide and. Standard for dry wells february 2004 page 9 3 2 areas where hazardous materials are expected to be present in greater than reportable quantities as defined by the u s. New jersey stormwater best management practices manual chapter 9 3.