What does a high Joint Turbidity Unit (JTU) indicate about a body of water?

A high Joint Turbidity Unit (JTU) indicates that a body of water has high turbidity. Turbidity measures the cloudiness or haziness of water caused by large numbers of individual particles that are generally invisible to the naked eye, such as sediments, algae, or other contaminants. When the turbidity level is high, it often means that there is a significant amount of particulate matter suspended in the water, which can impact water quality and safety.

High turbidity can interfere with disinfection processes in water treatment and may indicate the presence of pathogens, affecting the overall safety of the water for drinking and recreational use. Therefore, B is indeed the correct response, as it directly relates to the high turbidity indicated by the elevated JTU measurements.