Despite unified testing thresholds, what aspect do water quality experts sometimes analyze to better trace the origin of *Enterococcus* bacteria?

Answer

The specific type of *Enterococcus* found, differentiating between animal and human sewage sources.

While environmental agencies apply a single, conservative safety threshold for the general public whenever *Enterococcus* indicators are high, experts often engage in deeper analysis when possible. This deeper dive involves trying to isolate and identify the specific strain or type of *Enterococcus* present. By distinguishing between bacteria originating from animal sources, like bird or reptile droppings, versus those originating from inadequately treated human sewage effluent, specialists can better pinpoint the contamination origin. This differentiation aids in tracing the source and making more accurate predictions regarding how quickly the water quality is expected to naturally recover.

Despite unified testing thresholds, what aspect do water quality experts sometimes analyze to better trace the origin of *Enterococcus* bacteria?

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