Which items are typically listed as concerns or components addressed by water chemistry monitoring in a plant?

• A. Condenser tube leaks, water recycling, corrosion, demineralizer resins, control rod drive systems, cleaning agents
• B. Flow-induced vibration, neutron flux, fuel temperature, shielding gas
• C. Radiolysis product detection, hydrogen gas, noble gas release, oxygen concentration
• D. Filter medium selection, resin grade, resin replacement schedule, throughput

Answer: (A)

Water chemistry monitoring in a plant concentrates on how water quality affects corrosion, scaling, and the integrity of cooling and processing systems. The items listed—condenser tube leaks signal material degradation and potential heat-transfer problems, water recycling raises the possibility of impurity buildup that can accelerate corrosion or fouling, corrosion itself is the central concern to be controlled, demineralizer resins must be monitored to ensure they’re removing ions effectively and not releasing contaminants, control rod drive systems require clean, compatible water to prevent damage to moving components, and cleaning agents introduce residual chemicals that can disrupt the system’s chemistry if not properly removed—these are all direct, actionable areas for water chemistry programs. Other topics shown in the choices align more with reactor physics, radiolysis and gas concerns, or resin procurement and maintenance scheduling, which are not the routine focus of water chemistry monitoring.