California Wastewater Treatment Operator Practice Exam

Question: 1 / 400

How is Total Suspended Solids (TSS) typically measured?

By temperature evaluation

By pH levels testing

By filtering a sample and weighing the residue

Total Suspended Solids (TSS) is measured by filtering a known volume of water through a specific type of filter that captures the solid particles present. After the water passes through the filter, the solid residue that remains on the filter is dried to a constant weight. This weight is then used to calculate the concentration of suspended solids in the original water sample. This method provides a direct measurement of the amount of particulate matter—including organic and inorganic materials—that is suspended in the water.

The effectiveness and accuracy of this method make it the standard practice for determining TSS levels in water quality assessments. It provides essential data for monitoring wastewater treatment processes, assessing water pollution, and ensuring compliance with environmental regulations.

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By observing color changes

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