What might be a consequence of severe structural corrosion in sewers caused by industrial wastewater?

Severe structural corrosion in sewers due to industrial wastewater can lead to higher repair costs and maintenance issues. When corrosion occurs, the integrity of the sewer system is compromised, meaning that repairs or replacements may become necessary more frequently. This not only increases the overall expenditure for maintenance but also can necessitate more extensive and costly repairs. Additionally, corroded infrastructure may lead to blockages, leaks, or even complete failures, which would require urgent response and repair efforts, further escalating costs.

In contrast, other options do not align with the consequences of corrosion. For example, a decrease in municipal taxes would typically not occur as a result of structural damage; rather, tax rates might need to adjust to accommodate the increased financial burden of repairs. Increased efficiency in water treatment would not result from corrosion, as outdated or damaged sewer systems can complicate water treatment processes. Lastly, a reduction in needed inspections would be counterintuitive; in fact, more frequent inspections would likely be necessary to monitor and respond to the issues caused by corrosion.