Septic System and Nitrogen FAQ

Common Misconceptions about Septic Systems and Nitrogen

I just installed new Title 5 system a few years ago, so my system is not part of the Nitrogen Problem.

Not true: Even post-1995 Title 5 systems do little to remove Nitrogen, and so contribute Nitrogen to groundwater and marine waters.

I don’t live near the coast—my house is several miles inland—so my septic system is not part of the Nitrogen Problem.

Not True: Every septic system is located in a watershed that ultimately discharges to coastal waters. The Nitrogen from septic systems that are located farther inland just takes a little longer to reach the coast.

I pump my septic system every 3 years-- so my system is not a problem.

Not True: Pumping a septic system DOES NOT help remove nitrogen from wastewater. Pumping removes solids from the tank and prevents solids from carrying over to the leachfield, which may prolong the life of the leachfield.

If I change the type of detergents I use, this will reduce the Nitrogen impact of my septic system.

Not True: Detergents do not contain Nitrogen. Nitrogen comes from human waste. Humans excrete a fixed amount of Nitrogen per person per day.

I use less water, so I am reducing the Nitrogen impact of my septic system.

Not True: Using less water does not change the total amount of nitrogen leaving a septic system.

There are chemicals I can buy that will reduce the amount of nitrogen in my septic system.

Not True: These so—called chemical fixes do not remove nitrogen and can harm the natural functioning of your septic system.