If flooding has occurred, the septic system may have failed or washed away. The system should be checked to determine if erosion has occurred or the system has been damaged. If any part of the system is exposed or appears damaged, people should contact their local health department so it can recommend proper corrections. If the septic system has been flooded, sewage can back up into the home. This is more than just a serious nuisance.
Sewage contains harmful bacteria.
When cleaning up be sure to wear gloves, disinfect contaminated surfaces with diluted bleach water, and thoroughly wash yourself and your clothing immediately after cleaning. If the septic system includes a pump chamber and pump, check to be sure the pump tank isn't allowing surface water to leak into the system. The excess water can easily overload the drainfield causing more expensive repairs. Contact the health department for guidance or a septic system contractor for repairs. If the system is acting sluggish, this may a normal reaction to saturated soils around the drainfield.