sclerosis. an induration or hardening, especially of a part from inflammation, or in disease of the interstitial substance. The term is used chiefly for such a hardening of the nervous system due to hyperplasia of the connective tissue or for hardening of the blood vessels.Called also induration. adj., adj sclerotÂ´ic.clerosis. an induration or hardening, especially of a part from inflammation, or in disease of the interstitial substance. The term is used chiefly for such a hardening of the nervous system due to hyperplasia of the connective tissue or for hardening of the blood vessels. Called also induration. adj., adj sclerotÂ´ic.
Lifetime Costs: The typical total cost for a new septic system over a 20 year period is $6,300 to $13,000 for trenches and mounds, or $13,500 to $32,000 for alternative treatment systems.For multi-household systems, typical trench or mound systems range from $18,500 to $25,000.he typical total cost for a new septic system over a 20 year period is $6,300 to $13,000 for trenches and mounds, or $13,500 to $32,000 for alternative treatment systems.
1 The cost of a septic tank alone runs about $500-$1,800 depending on size (ranging from 300-1,000 gallons) and type. 2  Piping and other needed items adds another $100-$200 to the total cost of materials.3  New Mexico State University provides an introduction to installing a septic tank.iscounts: 1  Most counties and states require a building permit for installing or replacing a septic system, at a cost of $250-$1,000 or more depending on the location and the complexity of the project.