Wisconsin Mound Soil Absorption System and Area FillPractice Exam

Which of the following statements is true regarding the installation of Wisconsin mounds on sloped sites?

1. Slopes greater than 25% are allowed

2. Pressure distribution technique is irrelevant

3. Utilization of linear loading rate is essential

4. Only flat sites are acceptable

The correct answer is: Utilization of linear loading rate is essential

Utilization of the linear loading rate is essential when installing Wisconsin mounds on sloped sites because it helps to ensure proper distribution of effluent across the absorption area. This approach takes into consideration the slope of the land, which can significantly affect how wastewater is absorbed and treated in the soil. On sloped sites, a linear loading rate allows for the management of wastewater in a way that avoids issues such as ponding or overloading one part of the system, which can lead to system failure. It ensures that the effluent is evenly spread over a larger area, allowing sufficient attenuation and treatment of the wastewater before it reaches the groundwater. In contrast to the chosen answer, sloped sites greater than 25% are generally discouraged due to higher risks of erosion and ineffective absorption. Pressure distribution techniques are actually quite relevant as they help in evenly dispersing the wastewater across the absorption area. Flat sites may seem ideal, but they are not the only acceptable landforms for installation; well-designed systems can effectively manage effluent on appropriately sloped terrain when the linear loading rate is properly utilized.