OSSF INSTALLER 2 Latest Update 2025-2026 85
Questions and 100% Verified Correct Answers
Guaranteed A+
______should NOT be allowed over the OSSF treatment unit or drainfield
a . Vegetation
b . Mowing
c . Earth fill
d . Rainfall runoff - CORRECT ANSWER: d . Rainfall runoff
_____adopted the current OSSF Rules in 1997 and revised them several times . -
CORRECT ANSWER: TCEQ
A ______ is a disease-causing microorganism - CORRECT ANSWER: Pathogen
A ____________of __________shall be placed on top op the porous media before
backfilling - CORRECT ANSWER: Permeable barrier geo fabric
A drip irrigation system must
a . not be installed in Class IV soils
b . be installed at a minimum depth of 18 in .
c . have pressures adjusted to less than 10 psi on distribution lines
d . be equipped with mechanisms to flush from the drainfield back to the treatment unit -
CORRECT ANSWER: d . be equipped with mechanisms to flush from the drainfield
back to the treatment unit
, A groundwater chemical contaminant that can result from septic tanks and leachfields is
which can cause_____in infants - CORRECT ANSWER: Nitrates and
methoemoglobinmia
A legal maintenance company for a surface application OSSF system using proprietary
aerobic plant must have an employee who is which of the following ?
a . A licensed maintenance provider b . A registered maintenance technician
c . A registered installer and maintenance technician
d . A registered installer or class D wastewater operator - CORRECT ANSWER: a . A
licensed maintenance provider
A major reason for wastewater system failure is
a homeowner waste
b . inadequate planning
c . hydraulic overloading
d . oils grease and fats - CORRECT ANSWER: c . hydraulic overloading grease
A mound or soil substitution drainfield often used
a . In wetland areas
b . Without treatment
c . In conjunction with secondary treatment
d.When existing soils will not provide adequate treatment due to depth or texture -
CORRECT ANSWER: d . When existing soils will not provide adequate treatment due to
depth or texture
A very common reason for soil absorption system failures is inadequate - CORRECT
ANSWER: lot Size
An important part of the installation of an LPD system is
Questions and 100% Verified Correct Answers
Guaranteed A+
______should NOT be allowed over the OSSF treatment unit or drainfield
a . Vegetation
b . Mowing
c . Earth fill
d . Rainfall runoff - CORRECT ANSWER: d . Rainfall runoff
_____adopted the current OSSF Rules in 1997 and revised them several times . -
CORRECT ANSWER: TCEQ
A ______ is a disease-causing microorganism - CORRECT ANSWER: Pathogen
A ____________of __________shall be placed on top op the porous media before
backfilling - CORRECT ANSWER: Permeable barrier geo fabric
A drip irrigation system must
a . not be installed in Class IV soils
b . be installed at a minimum depth of 18 in .
c . have pressures adjusted to less than 10 psi on distribution lines
d . be equipped with mechanisms to flush from the drainfield back to the treatment unit -
CORRECT ANSWER: d . be equipped with mechanisms to flush from the drainfield
back to the treatment unit
, A groundwater chemical contaminant that can result from septic tanks and leachfields is
which can cause_____in infants - CORRECT ANSWER: Nitrates and
methoemoglobinmia
A legal maintenance company for a surface application OSSF system using proprietary
aerobic plant must have an employee who is which of the following ?
a . A licensed maintenance provider b . A registered maintenance technician
c . A registered installer and maintenance technician
d . A registered installer or class D wastewater operator - CORRECT ANSWER: a . A
licensed maintenance provider
A major reason for wastewater system failure is
a homeowner waste
b . inadequate planning
c . hydraulic overloading
d . oils grease and fats - CORRECT ANSWER: c . hydraulic overloading grease
A mound or soil substitution drainfield often used
a . In wetland areas
b . Without treatment
c . In conjunction with secondary treatment
d.When existing soils will not provide adequate treatment due to depth or texture -
CORRECT ANSWER: d . When existing soils will not provide adequate treatment due to
depth or texture
A very common reason for soil absorption system failures is inadequate - CORRECT
ANSWER: lot Size
An important part of the installation of an LPD system is
