How does seasonal weather impact septic system functionality?

Heavy rains can significantly affect septic system functionality by saturating the soil surrounding the drain fields. When the soil becomes overly saturated, it loses its ability to absorb wastewater effectively. This can lead to backups in the system, as the effluent cannot properly percolate into the ground. Moreover, excessive moisture in the soil can cause the septic tank to become overloaded, leading to potential issues such as effluent surfacing above ground or contamination of nearby water sources. Therefore, understanding the impact of heavy rains on septic systems is crucial for maintaining their performance and ensuring proper wastewater management.

The other options present scenarios that do not accurately reflect the typical effects of seasonal weather on septic systems.