8/25/25, 6:32 AM TX Class C Wastewater Treatment License EXAM (2025/2026) Updated: EXAM QUESTIONS WITH ACCURATE ANSWERS | GET…
TX Class C Wastewater Treatment License EXAM
(2025/2026) Updated: EXAM QUESTIONS WITH
ACCURATE ANSWERS | GET IT RIGHT!!
Save
Terms in this set (233)
the 1st stage of sewage treatment where large debris,
such as sticks, grit, and rags pas through a screen
Preliminary Treatment
followed by a grit chamber, where the flow of water is
slowed enough to allow for sedimentation.
What stage of treatment is preliminary treatment
grit removal usually
accomplished in?
Rotating Biological a type of biological secondary treatment process
Contactor
How are protozoa (cause disinfection
of amoebic dysentery)
destroyed?
Other than stream aquifer recharge, evaporation in a pond, and
discharge, what are other application to farm land by irrigation
ways to dispose of
effluent wastewater?
gives the basic structure for regulating discharges of
Clean Water Act
pollutants into the waters of the United States
gives the TCEQ jurisdiction over discharges of waste
Texas Water Code
into or adjacent to water in the state
https://quizlet.com/1068094822/tx-class-c-wastewater-treatment-license-exam-20252026-updated-exam-questions-with-accurate-answers-get-it-right… 1/23
,8/25/25, 6:32 AM TX Class C Wastewater Treatment License EXAM (2025/2026) Updated: EXAM QUESTIONS WITH ACCURATE ANSWERS | GET…
Who reviews plans and TCEQ
specifications for new
construction projects
before construction
begins?
Water quality fees may be $115,000
as high as ____________ per
permit?
Administrative penalties, $25,000
up to __________ per day for
each violation, may be
assessed against any
violator.
Every city with more than 10,000
________ in population needs
to establish a water
pollution control program
and hire qualified
personnel to administer it.
State law requires that 20
reports are to be
submitted no later than
the ________th day of the
following month.
What are major surface segments
waters classified as for the
purposes of water quality
management and
designation of site-
specific standards?
direct discharges of storm water or surface water into
a wastewater collection system (storm drains, roof
Inflow
gutters, yard drains, basement sump pumps and
broken manholes and wastewater lines).
https://quizlet.com/1068094822/tx-class-c-wastewater-treatment-license-exam-20252026-updated-exam-questions-with-accurate-answers-get-it-right… 2/23
, 8/25/25, 6:32 AM TX Class C Wastewater Treatment License EXAM (2025/2026) Updated: EXAM QUESTIONS WITH ACCURATE ANSWERS | GET…
How many gallons per day 100
will each person
contribute to the
wastewater treatment
plant?
How much BOD will each 0.17
person contribute to the
wastewater treatment
plant each day?
Cause of septic bacterial action
wastewater
Classifications of solids in fixed/ash, suspended/dissolved, organic/inorganic
wastewater
Organic compounds in carbon, hydrogen and oxygen (animal and vegetable
wastewater include in nature)
Type of organic matter proteins
present in wastewater
BOD is a measure of oxygen used up
what?
Ways that oxygen can be untreated waste discharges, algae masses at night,
depleted in streams and high BOD in the effluent
A gas found in treatment dissolved oxygen
systems that is NOT
dangerous
Cycles of decay include carbon, nitrogen and sulfur
A flow totalizer is required 0.5 MGD
when the plant design
flow is more than
Non-hazardous wastes chlorides, alkalinity, color, phosphorous and iron
include
Hazardous wastes include cyanide, sulfides, organics and gasoline
https://quizlet.com/1068094822/tx-class-c-wastewater-treatment-license-exam-20252026-updated-exam-questions-with-accurate-answers-get-it-right… 3/23
TX Class C Wastewater Treatment License EXAM
(2025/2026) Updated: EXAM QUESTIONS WITH
ACCURATE ANSWERS | GET IT RIGHT!!
Save
Terms in this set (233)
the 1st stage of sewage treatment where large debris,
such as sticks, grit, and rags pas through a screen
Preliminary Treatment
followed by a grit chamber, where the flow of water is
slowed enough to allow for sedimentation.
What stage of treatment is preliminary treatment
grit removal usually
accomplished in?
Rotating Biological a type of biological secondary treatment process
Contactor
How are protozoa (cause disinfection
of amoebic dysentery)
destroyed?
Other than stream aquifer recharge, evaporation in a pond, and
discharge, what are other application to farm land by irrigation
ways to dispose of
effluent wastewater?
gives the basic structure for regulating discharges of
Clean Water Act
pollutants into the waters of the United States
gives the TCEQ jurisdiction over discharges of waste
Texas Water Code
into or adjacent to water in the state
https://quizlet.com/1068094822/tx-class-c-wastewater-treatment-license-exam-20252026-updated-exam-questions-with-accurate-answers-get-it-right… 1/23
,8/25/25, 6:32 AM TX Class C Wastewater Treatment License EXAM (2025/2026) Updated: EXAM QUESTIONS WITH ACCURATE ANSWERS | GET…
Who reviews plans and TCEQ
specifications for new
construction projects
before construction
begins?
Water quality fees may be $115,000
as high as ____________ per
permit?
Administrative penalties, $25,000
up to __________ per day for
each violation, may be
assessed against any
violator.
Every city with more than 10,000
________ in population needs
to establish a water
pollution control program
and hire qualified
personnel to administer it.
State law requires that 20
reports are to be
submitted no later than
the ________th day of the
following month.
What are major surface segments
waters classified as for the
purposes of water quality
management and
designation of site-
specific standards?
direct discharges of storm water or surface water into
a wastewater collection system (storm drains, roof
Inflow
gutters, yard drains, basement sump pumps and
broken manholes and wastewater lines).
https://quizlet.com/1068094822/tx-class-c-wastewater-treatment-license-exam-20252026-updated-exam-questions-with-accurate-answers-get-it-right… 2/23
, 8/25/25, 6:32 AM TX Class C Wastewater Treatment License EXAM (2025/2026) Updated: EXAM QUESTIONS WITH ACCURATE ANSWERS | GET…
How many gallons per day 100
will each person
contribute to the
wastewater treatment
plant?
How much BOD will each 0.17
person contribute to the
wastewater treatment
plant each day?
Cause of septic bacterial action
wastewater
Classifications of solids in fixed/ash, suspended/dissolved, organic/inorganic
wastewater
Organic compounds in carbon, hydrogen and oxygen (animal and vegetable
wastewater include in nature)
Type of organic matter proteins
present in wastewater
BOD is a measure of oxygen used up
what?
Ways that oxygen can be untreated waste discharges, algae masses at night,
depleted in streams and high BOD in the effluent
A gas found in treatment dissolved oxygen
systems that is NOT
dangerous
Cycles of decay include carbon, nitrogen and sulfur
A flow totalizer is required 0.5 MGD
when the plant design
flow is more than
Non-hazardous wastes chlorides, alkalinity, color, phosphorous and iron
include
Hazardous wastes include cyanide, sulfides, organics and gasoline
https://quizlet.com/1068094822/tx-class-c-wastewater-treatment-license-exam-20252026-updated-exam-questions-with-accurate-answers-get-it-right… 3/23
