What will the loss of pressure in a water system possibly cause besides compromising fire fighting capabilities?

• A. Bacterial Contamination
• B. Mineral Deposits
• C. Algal Bloom
• D. Odor Changes

Answer: (A)

Loss of pressure in a water distribution system allows backflow through cross-connections, which can pull contaminants into the system from storage tanks, taps, or other sources. This creates a real risk of bacterial contamination, a health concern that goes beyond simply losing fire-fighting capability. Mineral deposits come from water chemistry and don’t require a pressure drop to form. Algal blooms are tied to source-water conditions and sunlight exposure, not a direct pressure change in the distribution network. Odor changes can occur from various factors, but the most direct consequence of a pressure drop is the potential for bacterial contamination.