ATS monitoring always included all of the following except

• A. Visual Observations
• B. Discharge Measurements
• C. Equipment Inspections
• D. SSC

Answer: (D)

ATS monitoring focuses on how well the active treatment system is operating through three practical checks: visually inspecting the system for any obvious malfunctions or bypasses, measuring the discharge from the system to track flow and treatment performance, and inspecting the equipment itself to ensure components like pumps, filters, and valves are in good working order. Suspended solids concentration (SSC) monitoring, while valuable for assessing water quality, is not a standard part of ATS monitoring because it involves collecting and analyzing water samples to determine sediment levels, which is a broader sampling activity beyond routine operational checks. Therefore SSC is not always included in ATS monitoring.