Contractors license # 579423, C42, A. | D.I.R (P.W.C.) #1000012680
ENGINEERED SEPTIC SYSTEM IN FRESNO, CA
ALSO SERVING: cLOVIS, SANGER, REEDLEY, MADERA, EASTON, HUNTINGtON LAKE & SURROUNDING AREAS
An engineered septic system is a solution to a problem. Some properties have very limited space, poor draining soil, or high ground water issues that would cause septic problems if the system is not engineered to account for these factors. An engineered septic system ensures that the system will work properly for many years to come. We work closely with local engineers who have designed many septic systems for our customers over the years. We would be happy to refer you to an engineer to help you with your septic project.
Different soil types drain at various rates. The porosity and permeability of different soil types greatly affects how fast water is able to move through them. Porosity is a measure of how much of a rock is open space. This space can be between grains or within cracks or cavities of the rock. Permeability is a measure of the ease with which a fluid (water in this case) can move through a porous rock.
Engineered septic systems are designed based on the native soils’ ability to drain. A “Perc Test” or percolation test measures the rate at which water drains back into the soil. Below is a very informative video about perc tests and engineered septic systems.
This video shows a squirt test for a raised mound leach bed. There is a pump system installed in the septic tank which filters and pumps the effluent water to this leach bed. After the squirt test is complete, orifice shields are added to block the stream of water which then trickles gently down through the leach bed. This leach bed will be covered by a raised dirt mound.
Here is an example of an engineered leach bed. A pump with a filter was installed in the septic tank which pumps the effluent water up to the distribution box. After the water reaches the distribution box it flows out equally through the white 4 inch pipes shown in the picture and leaches through the rock filled leach bed. There is black filter fabric covering the rock in this photo.
