When direct consumption of shellfish might be hazardous due to pollution, if the median coliform MPN of the water does not exceed 700 per 100 ml, the area is designated:

When the median coliform MPN (Most Probable Number) of water does not exceed 700 per 100 ml, the area is designated as restricted. This classification indicates that while the water quality may not be optimal, it is still safe for shellfish harvesting under controlled conditions.

In a restricted area, certain guidelines and regulations typically apply to ensure the safety of shellfish for consumption. These regulations may include monitoring the water quality more closely, restricting harvesting during specific times, or implementing a post-harvest treatment process to reduce any potential health risks associated with consuming shellfish from that area.

Understanding this classification is important for managing public health risks related to consuming shellfish from waters that may experience pollution events. The designation serves as a protective measure, allowing for continued use of the resource while also safeguarding consumers from potential harm.