I am in the process of selling my house and 
had an inspection of my septic system. The report
stated that the drywell has 2 feet of seepage left. 

The house was built in 1950 and I have lived in the
house the past five years. From 1993 to 1997 I had
the tank pumped twice. From 1993 to 1994 there 
were 2 people living in the house with no dishwasher.
From 1994 to 1997 there were three people and from
1997 to present 4 people and a dishwasher.

I guess my question is, is the seepage level due 
to not consistently pumping out the tank or, is it
due to the age of the septic system. Than you.