Tennessee Wastewater Operator Practice Exam

What does high levels of total suspended solids (TSS) indicate in a pond system?

1. Low nutrient availability

2. Eutrophication potential

3. Oxygen depletion

4. High biological activity

The correct answer is: Eutrophication potential

High levels of total suspended solids (TSS) in a pond system indicate eutrophication potential. Eutrophication is when water bodies become enriched with nutrients, often due to runoff containing fertilizers or organic matter. As the nutrients accumulate, they can lead to excessive growth of algae and aquatic plants—often referred to as algal blooms. These blooms can block sunlight and lead to decreased oxygen levels in the water when they decompose, ultimately harming aquatic life. In systems with elevated TSS, the presence of organic materials and nutrients often correlates with a higher likelihood of eutrophic conditions developing. This can negatively affect water quality and biodiversity, impacting the overall health of the aquatic ecosystem. Monitoring TSS levels is an essential aspect of managing pond systems to prevent or mitigate the effects of eutrophication.