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In comparison to nitrate, in saturated flow conditions, phosphate tends to be held on-site because it bonds with iron, calcium, or aluminum.

Creeping failure may occur in an under-designed system or from the homeowner not regularly pumping out solid wastes from their septic tank.

To prevent sewage back-ups in the home, it is ideal to pump out septic tank sludge when it is 25% of the liquid depth.

Which of the following characteristics of a stream buffer is NOT effective in aiding the treatment of septic system effluent?

Which of the following sequences correctly depicts the breakdown of organic nitrogen before absorption by plant roots?

Septic effluent nitrogen is mostly ___ which is converted to ___ by aerobic bacteria.

Constructed wetland effluent is typically high in nutrients.

All of the following are true statements about using a lagoon septic system EXCEPT:

If sewage backs up into a home from the septic system:

All of the following are examples of water-saving plumbing devices EXCEPT: