Page 1 of 40
TCEQ OSSF, Texas TCEQ LICENSED Installer EXAM
ACTUAL EXAM COMPLETE QUESTIONS AND VERIFIED
SOLUTIONS LATEST UPDATE THIS YEAR
TCEQ OSSF, Texas TCEQ Installer II –
EXAM COVERAGE
TCEQ OSSF - Texas TCEQ Licensed Installer II
Texas OSSF Rules (30 TAC Chapter 285) - State regulations, permitting, installer responsibilities
Site & Soil Evaluation - Soil texture, percolation tests, site limitations, setbacks
System Types - Conventional systems, aerobic treatment units (ATUs), low-pressure dosing, drip
irrigation
Design Criteria - Tank sizing, absorption field sizing, loading rates, separation distances
Installation Requirements - Excavation standards, tank placement, pipe slope, watertight
connections
Electrical Components (ATUs) - Control panels, alarms, blowers, wiring basics
Pump & Dosing Systems - Pump sizing basics, floats, timers, pressure distribution
Inspection & Testing - Leak testing, system start-up procedures, compliance verification
Maintenance & Service Requirements - Service contracts, reporting, homeowner education
Safety Practices - Confined space awareness, trench safety, PPE
Troubleshooting - Identifying hydraulic overload, surfacing effluent, system component failure
Documentation & Reporting - Permit documentation, as-built drawings, regulatory forms
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QUESTION: The term __________ _____________ refers to water that is found above ground in
containment areas, such as lakes, rivers, streams, creeks and reservoirs. - ANSWER-SURFACE
WATERS
QUESTION: The term ___________ _____________ refers to water that collects beneath the
surface of the earth in porous, permeable, water-bearing geologic formations or aquifers. -
ANSWER-GROUND WATER
QUESTION: Water table aquifers are recharged by ___________ __________________.
In the hydrologic cycle, water moves by evaporation and transpiration into the
___________________ where it comes in contact with cooler air, condenses, and falls to the
ground in the form of _____________________ (sleet, snow, hail or rain), and the surface
water supply through _____________________. - ANSWER-LOCAL PERCOLATION.
ATMOSPHERE, PRECIPITATION, RUNOFF
,Page 3 of 40
QUESTION: Rock-filled or lined pits dug at least 4 feet deep at the end of a septic tank
absorption field system are called _________ _________. - ANSWER-SEEPAGE PITS.
QUESTION: Pits constructed in permeable soil with open-jointed material along the sides to the
bottom of the pit that receive a direct discharge of raw waste water are called
__________________. - ANSWER-CESSPOOLS.
QUESTION: How are water born diseases transmitted? - ANSWER-MICROORGANISMS
QUESTION: What are 3 primary routes of containment for pathogenetic microorganisms and
harmful chemicals from on-site sewage systems to our environment? - ANSWER-Neighborhood
pollution, groundwater pollution and surface water pollution.
QUESTION: What problems are a result of neighborhood pollution? - ANSWER-~Diseases that
can be spread by direct or indirect contact with the standing water.
~Vectors such as roaches and flies, that can also spread diseases after coming in contact with
the waste water.
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~Unsightly and unpleasant living conditions that result from the standing waste water.
~Feuds and bad relationships with neighbors that can result from waste water problems.
~Property values drop and real estate transactions fall through. No one benefits and everyone
suffers when neighborhoods are fouled by waste water.
QUESTION: Why is acceptable quality water vital? - ANSWER-Sustains human life, the natural
environment and the economic life of Texas
QUESTION: Groundwater that is obtained via a well can be used for what purpose? - ANSWER-
Agricultural, industrial/commercial and drinking water.
QUESTION: What is the difference between a water table aquifer and an artesian aquifer? -
ANSWER-Water table aquifer is in direct contact with either the soil or the intermediate belt.
TCEQ OSSF, Texas TCEQ LICENSED Installer EXAM
ACTUAL EXAM COMPLETE QUESTIONS AND VERIFIED
SOLUTIONS LATEST UPDATE THIS YEAR
TCEQ OSSF, Texas TCEQ Installer II –
EXAM COVERAGE
TCEQ OSSF - Texas TCEQ Licensed Installer II
Texas OSSF Rules (30 TAC Chapter 285) - State regulations, permitting, installer responsibilities
Site & Soil Evaluation - Soil texture, percolation tests, site limitations, setbacks
System Types - Conventional systems, aerobic treatment units (ATUs), low-pressure dosing, drip
irrigation
Design Criteria - Tank sizing, absorption field sizing, loading rates, separation distances
Installation Requirements - Excavation standards, tank placement, pipe slope, watertight
connections
Electrical Components (ATUs) - Control panels, alarms, blowers, wiring basics
Pump & Dosing Systems - Pump sizing basics, floats, timers, pressure distribution
Inspection & Testing - Leak testing, system start-up procedures, compliance verification
Maintenance & Service Requirements - Service contracts, reporting, homeowner education
Safety Practices - Confined space awareness, trench safety, PPE
Troubleshooting - Identifying hydraulic overload, surfacing effluent, system component failure
Documentation & Reporting - Permit documentation, as-built drawings, regulatory forms
,Page 2 of 40
QUESTION: The term __________ _____________ refers to water that is found above ground in
containment areas, such as lakes, rivers, streams, creeks and reservoirs. - ANSWER-SURFACE
WATERS
QUESTION: The term ___________ _____________ refers to water that collects beneath the
surface of the earth in porous, permeable, water-bearing geologic formations or aquifers. -
ANSWER-GROUND WATER
QUESTION: Water table aquifers are recharged by ___________ __________________.
In the hydrologic cycle, water moves by evaporation and transpiration into the
___________________ where it comes in contact with cooler air, condenses, and falls to the
ground in the form of _____________________ (sleet, snow, hail or rain), and the surface
water supply through _____________________. - ANSWER-LOCAL PERCOLATION.
ATMOSPHERE, PRECIPITATION, RUNOFF
,Page 3 of 40
QUESTION: Rock-filled or lined pits dug at least 4 feet deep at the end of a septic tank
absorption field system are called _________ _________. - ANSWER-SEEPAGE PITS.
QUESTION: Pits constructed in permeable soil with open-jointed material along the sides to the
bottom of the pit that receive a direct discharge of raw waste water are called
__________________. - ANSWER-CESSPOOLS.
QUESTION: How are water born diseases transmitted? - ANSWER-MICROORGANISMS
QUESTION: What are 3 primary routes of containment for pathogenetic microorganisms and
harmful chemicals from on-site sewage systems to our environment? - ANSWER-Neighborhood
pollution, groundwater pollution and surface water pollution.
QUESTION: What problems are a result of neighborhood pollution? - ANSWER-~Diseases that
can be spread by direct or indirect contact with the standing water.
~Vectors such as roaches and flies, that can also spread diseases after coming in contact with
the waste water.
, Page 4 of 40
~Unsightly and unpleasant living conditions that result from the standing waste water.
~Feuds and bad relationships with neighbors that can result from waste water problems.
~Property values drop and real estate transactions fall through. No one benefits and everyone
suffers when neighborhoods are fouled by waste water.
QUESTION: Why is acceptable quality water vital? - ANSWER-Sustains human life, the natural
environment and the economic life of Texas
QUESTION: Groundwater that is obtained via a well can be used for what purpose? - ANSWER-
Agricultural, industrial/commercial and drinking water.
QUESTION: What is the difference between a water table aquifer and an artesian aquifer? -
ANSWER-Water table aquifer is in direct contact with either the soil or the intermediate belt.
