Direct answer
What does Septic system mean?
An on-site wastewater system that treats and disperses sewage where a public sewer is not used.
Exam cue: Know the basic tank and absorption-area function and the need for inspection, maintenance and local approval.
What does it look like in a question?
New York example
A rural home uses a septic tank and leach field rather than a municipal sewer connection.
Common exam trap
What should you not confuse it with?
A septic inspection is not the same as a water-well test.
Related construction and environment terms
AsbestosA group of mineral fibers formerly used in many building materials and associated with health risks when fibers become airborne and are inhaled.Environmental assessment formA New York SEQRA form used by an agency to help evaluate the environmental significance of a proposed action.Environmental impact statementA detailed document examining potentially significant environmental impacts, mitigation and reasonable alternatives under SEQRA.FoundationThe part of a structure that transfers building loads to the soil or supporting material below.Lead-based paintPaint containing lead that can create serious health hazards, especially for children, when it deteriorates or creates contaminated dust.Load-bearing wallA wall that carries structural load from above in addition to its own weight.
Sources used2 references with section locators
The curriculum citation confirms exam scope. Definition and rule citations support the explanation itself. Links and locators were checked on August 26, 2026.
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Put the term back into its full subject.
A definition helps with recall. The subject guide shows how the rule interacts with documents, scenarios, calculations and practice questions.