Certified Storm Water Operator Practice Exam

Which of the following soil conditions must be considered on-site?

1. Fertility

2. Temperature

3. Color

4. Texture

The correct answer is: Fertility

When assessing soil conditions on-site, understanding soil texture is crucial. Soil texture refers to the proportion of different-sized soil particles—sand, silt, and clay—which affects water retention, drainage, and overall soil health. It influences how stormwater interacts with the soil, its ability to absorb water, and the potential for runoff. Analyzing soil texture helps in determining the best practices for stormwater management. For example, sandy soils drain quickly but have lower nutrient and moisture retention, while clay soils hold water but may lead to increased runoff due to poor drainage. Knowledge of soil texture allows operators to implement appropriate erosion control techniques and to foster better infiltration practices based on the site's specific requirements. Other factors such as fertility, temperature, and color, while they may offer insights into the soil’s overall health and conditions, are typically secondary when it comes to the immediate implications for stormwater management. Therefore, texture is a key characteristic requiring diligent consideration in planning and implementing effective stormwater strategies.