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OSSF INSTALLER 1 LICENSE ACTUAL EXAM
NEWEST 2025 ACTUAL EXAM COMPLETE 200
QUESTIONS AND CORRECT DETAILED
ANSWERS (VERIFIED ANSWERS) |ALREADY
GRADED A+|BRAND NEW!!
When did law requiring Installer 1 license go into effect?
ANSWER: March 1, 1990
What is evaporation?
ANSWER: Water coming from ground
What is transpiration?
ANSWER: Water coming from plants
Are bore holes, injection wells or cesspools legal?
ANSWER: No
Can artesian wells be contaminated from bore holes?
ANSWER: Yes
When did license for Installer 2 and Designated Rep go into effect?
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ANSWER: 1998
Requirements to take Installer 2 class
ANSWER: Installer 1 license for 1 year and 3 installs or 2 years
as apprentice plus 6 installs
Does Designated Representative need experience?
ANSWER: No, just course and test at 70%, but cannot work as
installer/designer/evaluator in jurisdiction
Requirements for Site Evaluator
ANSWER: Current Installer 2, Designated Representative,
Engineer, Sanitarian, Geoscientist
Requirements for Maintenance Provider
ANSWER: Maintenance Tech for 3 years or Installer 2 plus
class
What septic systems require planning by Professional Engineer?
ANSWER: Low pressure dosing, absorptive mounds, soil
substitution, secondary treatment, anything aerobic
What does it mean to alter a septic system?
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ANSWER: To change an on-site sewage facility
Authorization to construct
ANSWER: First part of the permit
Authorized agent
ANSWER: Delegated the authority by the executive director to
implement and enforce the rules
Certified professional soil scientist
ANSWER: Individual who has met the certification
requirements of the American Society of Agronomy to engage in the practice of soil science
Designated representative
ANSWER: An individual who holds a valid license to review
permit applications, site evaluations, or planning materials, or conduct inspections on on-site sewage facilities
Floodplain (100-year)
ANSWER: Has a 1% chance of flooding each year
Gravel-less drainfield pipe
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ANSWER: Eight-inch or ten-inch diameter geotextile fabric-
wrapped piping product without gravel or media
Groundwater
ANSWER: Subsurface water occurring in soils and geologic
formations that are fully saturated either year-round or on a seasonal or intermittent basis
Local governmental entity
ANSWER: Municipality, county, river authority, or special
district, including groundwater conservation districts, soil and water conservation districts, and public health districts
Maintenance
ANSWER: Maintenance does not include alterations
Maintenance provider
ANSWER: Through August 31, 2009, a maintenance company
is a person or business that maintains on-site sewage facilities for compensation
Malfunctioning OSSF
