Check for leaking faucets and toilets. Install water conservation devices on the shower heads and in your toilet bowls. Remember, hundreds of gallons of water can be lost even with small leaks. Groundwater or surface water flooding the lateral lines Lateral lines are supposed to dispose of wastewater only. If you have groundwater or surface water entering the lateral lines, the system could be flooded.
Surface water entering a lateral field is fairly easy to determine.
If you have any of these conditions surface water could be entering your lateral lines. Groundwater entering the lateral lines is difficult to determine. If you suspect groundwater you should request assistance from your DEQ representative. Physical damage to the system Physical damage to a septic system can cause failure anywhere in the system. Lines may be collapsed, broken, or clogged.