Dry Wells

Depending on the location of your project engineers calculate up to 4 inches of rainfall in some cases in a 24 hour period and devise a plan to have all rainwater on your site re-enter the earth by installing dry wells and associated piping. These pre cast and dry wells allow water to seep back into the earth and eliminate basement leaks and flooding. All roof leaders are tied into these dry wells to make sure the water on your roof as well as the water on your paved areas is kept on your property.

Sewer

Sewers are the most modern way of disposing of raw sewage from residential and commercial sites. Sewer lines are constructed of all types of piping and sized according to projected flow. Plastic pipe is the most common type of material used to transport sewage by gravity to manholes and eventually to a sewer treatment plant. Most sewer construction today is monitored by an inspector to ensure proper installation techniques and methods. The pipe laser is used to guarantee pipes are laid perfectly straight and with the proper percentage of pitch. Once installed a sewer has to pass a water test and a mandrill test to assure that the piping does not leak or is out of round due to improper backfill procedures.

Septic Tanks

Septic Tanks are made of pre cast concrete and vary in size wording to design flow rates calculated by an engineer. A septic tank is a chamber where sewage is separated into two compartments, solid and liquid. The solid breaks down becoming a liquid by natural processes. The liquid then enters the second compartment which allows it to enter a pipe that is connected to a cesspool. The cesspool then allows the liquid to seep into the surrounding soil.

Cesspools

Cesspools are made of the pre cast concrete and are common in residential areas as well as some commercial buildings where sewers are not available. As cesspool is the second stage of the septic system that takes a liquid from a septic tank and allows that liquid to re-enter the earth. Cesspools are only used were sandy soil can be found and proper percolation may occur. Most commercial sites today require a test hole to be doug to allow an engineer the chance to evaluate the soil conditions and size of the cesspool properly according to the soil encountered.

French Drains

A French drain is a trench covered with gravel or rock or containing a perforated pipe that redirects surface and groundwater away from an area. A French drain can have perforated hollow pipes along the bottom to quickly vent water that seeps down through the upper gravel or rock. French drains are primarily used to prevent ground and surface water from penetrating or damaging building foundations.

A trench is dug with the bottom sloping toward the outflow point or sump. Once the trench is complete, filter fabric or "geotechnical fabric" is placed in the bottom and extended up both sides. The soil drain is then installed on top of the fabric with the perforations downward, and drain gravel placed over it. The trench may be entirely filled with gravel or only part way. In either case, the filter fabric is overlapped on top of the gravel and held in place by more gravel -- which then forms part of the landscaping surface -- or by soil, plantings, walkways, or other materials.