Which of the following conditions might indicate a sewer overflow?

The condition that indicates a potential sewer overflow is the presence of multiple signs that can indicate system failure. Each of the listed conditions provides insight into possible overflow issues, and together they represent a comprehensive approach to identifying problems within the sewer system.

Abnormal odors near sewer lines often indicate that raw sewage is escaping from the system, which is a direct sign of overflow or blockage. These odors can signal that the sewage is not flowing properly and is venting into the atmosphere outside the intended containment, which could result in an overflow situation.

Slow draining fixtures suggest that there is a blockage or inadequate flow within the sewer system. If fixtures throughout a property or area experience slow drainage, it might indicate that the sewage is backing up due to some restriction in the pipes, leading to a higher likelihood of an overflow occurring.

Water pooling in streets is a critical sign of potential sewer overflows. This condition usually occurs when the sewer system is overwhelmed, either due to excessive inflow (such as heavy rain or unauthorized connections) or blockages that prevent normal drainage. When water pools on the streets, it could be a sign that the sewer line is not able to carry the sewage away as intended, resulting in spillage onto the surface.

Thus, all of these conditions represent