Keeping the floodwaters at bay: septic systems and floods

There's only 16 days until the official start of spring! Spring, in many places, can be a very wet time of the year, depending on those spring showers and how fast or slow the snow melts. If you live in an area prone to springtime flooding, you should be aware of the effects that a flood can have on your septic system. Here are some things to keep in mind about septic systems and floods:

• If your yard is flooded (including the area with the septic tank and leaching field), be vigilant for signs of your system slowing down or backing up.
• Don't pump out your septic tank during flood conditions. Aside from the possibility of excess water, mud and sediment draining into it, your tank could float up to the surface if it's empty.  



Floating septic tank. 







Picture from New Mexico Environment Department. 

• Leaching fields don't work very well when the ground is saturated - remember this treatment part needs oxygen. To prevent your system from backing up or polluting the surrounding environment, reduce your water usage. 
• If your well is near a septic system in a flooded area, have your water tested before you consume it! Flooded systems can contaminate wells with dangerous pathogens.
• After a flood, have your system inspected by a professional for any damage.
• Don't use your septic system until the water water in the area of the leaching field is lower than the water level around the house. 
• Don't compact the soil around the system following a flood - compacting the soil (by driving on it) could result in system failure.
• Repair any erosion damage around the system. Re-sod or seed any bare areas.