5/13/25, 5:04 PM CWEA Environmental Compliance (2025) COMPREHENSIVE QUESTIONS AND VERIFIED DETAILED SOLUTIONS |COMPL…
CWEA Environmental Compliance (2025)
COMPREHENSIVE QUESTIONS AND VERIFIED
DETAILED SOLUTIONS |COMPLETE SOLUTIONS
|A+ GRADED |100% CORRECT!!
Save
Terms in this set (308)
An industry operating an 11.1 hours
8-hour shift, 5 days per
week, generates 100,000
gallons of wastewater
per shift. Their
pretreatment system has
a capacity of 150 gallons
per minute. How long
must the pretreatment
facility operate to
process the wastewater
generated each day?
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,5/13/25, 5:04 PM CWEA Environmental Compliance (2025) COMPREHENSIVE QUESTIONS AND VERIFIED DETAILED SOLUTIONS |COMPL…
An industry has five 600, 150, 1450, 2400, 400
sewer connections with
the following discharge
rates: 1) 300 gpd, 2) 75
gpd, 3) 725 gpd, 4) 1,200
gpd, 5) 200 gpd A flow-
weighted composite
sample of 5 liters is
desired. How many
milliliters of sample from
each connection should
be composited?
Prohibited discharges create a fire or explosion hazard in the sewer or
from industrial users to POTW.
POTWs, as stipulated in
the Clean Water Act, are
pollutants that:
"MSDS" is an acronym for Material Safety Data Sheet
what?
Safety hazards toxic gasses.
associated with hydrogen
sulfide in sewer systems
include:
A significant industrial a federal categorical industrial user.
user can be defined as:
Lead acetate paper is hydrogen sulfide.
used to determine the
presence of:
What is the average 54 minutes
detention time, in
minutes, for a 40,000 gpd
flow going through a
1,500-gallon interceptor?
https://quizlet.com/1043477159/cwea-environmental-compliance-2025-comprehensive-questions-and-verified-detailed-solutions-complete-soluti… 2/40
,5/13/25, 5:04 PM CWEA Environmental Compliance (2025) COMPREHENSIVE QUESTIONS AND VERIFIED DETAILED SOLUTIONS |COMPL…
The following type of Venturi.
flow measuring device
can be installed in a pipe
flowing full:
What total volume of spill 305,992 gallons
containment capacity in
gallons is needed for the
following tanks if a 12-
inch rainfall occurs
during a 24-hour period
on a common 200-foot
by 200-foot spill-
containment pad?
Assume 100 percent
containment of all tank
capacity is needed. Tank
I: Cube, 6 ft wide, 6 ft
long, and 6 ft high. Tank
II: Rectangular, 4 ft wide,
20 ft long, and 3 ft high.
Tank III: Cylindrical, 8 ft in
diameter and 9 ft high.
An industry has a 0.42 lb/day
wastewater discharge of
10,000 gallons per day
containing 5 mg/L of
copper. What is the
industry's mass emission
rate of copper in pounds
per day?
What kind of container Glass, Cool 4°C, H2SO4 to pH<2
and preservative is
required for samples to
be analyzed for oil and
grease?
is the ability to trace sample possession and
A chain-of-custody form:
handling from collection through analysis.
https://quizlet.com/1043477159/cwea-environmental-compliance-2025-comprehensive-questions-and-verified-detailed-solutions-complete-soluti… 3/40
, 5/13/25, 5:04 PM CWEA Environmental Compliance (2025) COMPREHENSIVE QUESTIONS AND VERIFIED DETAILED SOLUTIONS |COMPL…
The BOD determination is determine the relative oxygen requirements of
an empirical test in which wastewaters, effluents, and polluted waters.
standardized laboratory
procedures are used to:
is large enough to enter and work in, has a
A confined space is one
restricted entry/exit, and is not meant for continuous
that:
occupancy.
Industrial plants breweries.
producing wastes with a
high suspended solids
content include:
Whenever an inspector Two
or sampling technician is
in a manhole, how many
people should there be
above to respond in the
event of an emergency?
Alkalinity is reported as: alkalinity, mg/L CaCO3.
What is the normality of 0.0025 N
sodium hydroxide
(NaOH) solution of 25 mL
if a 0.01 N sulfuric acid
solution neutralizes 100
mL of the NaOH
solution?
A major pollutant of copper.
concern from a printed
circuit board shop is:
To find the proper check the MSDS for chemicals used.
protective gear to use
while inspecting an area
where a hazardous
chemical is used, you
would:
https://quizlet.com/1043477159/cwea-environmental-compliance-2025-comprehensive-questions-and-verified-detailed-solutions-complete-soluti… 4/40
CWEA Environmental Compliance (2025)
COMPREHENSIVE QUESTIONS AND VERIFIED
DETAILED SOLUTIONS |COMPLETE SOLUTIONS
|A+ GRADED |100% CORRECT!!
Save
Terms in this set (308)
An industry operating an 11.1 hours
8-hour shift, 5 days per
week, generates 100,000
gallons of wastewater
per shift. Their
pretreatment system has
a capacity of 150 gallons
per minute. How long
must the pretreatment
facility operate to
process the wastewater
generated each day?
https://quizlet.com/1043477159/cwea-environmental-compliance-2025-comprehensive-questions-and-verified-detailed-solutions-complete-soluti… 1/40
,5/13/25, 5:04 PM CWEA Environmental Compliance (2025) COMPREHENSIVE QUESTIONS AND VERIFIED DETAILED SOLUTIONS |COMPL…
An industry has five 600, 150, 1450, 2400, 400
sewer connections with
the following discharge
rates: 1) 300 gpd, 2) 75
gpd, 3) 725 gpd, 4) 1,200
gpd, 5) 200 gpd A flow-
weighted composite
sample of 5 liters is
desired. How many
milliliters of sample from
each connection should
be composited?
Prohibited discharges create a fire or explosion hazard in the sewer or
from industrial users to POTW.
POTWs, as stipulated in
the Clean Water Act, are
pollutants that:
"MSDS" is an acronym for Material Safety Data Sheet
what?
Safety hazards toxic gasses.
associated with hydrogen
sulfide in sewer systems
include:
A significant industrial a federal categorical industrial user.
user can be defined as:
Lead acetate paper is hydrogen sulfide.
used to determine the
presence of:
What is the average 54 minutes
detention time, in
minutes, for a 40,000 gpd
flow going through a
1,500-gallon interceptor?
https://quizlet.com/1043477159/cwea-environmental-compliance-2025-comprehensive-questions-and-verified-detailed-solutions-complete-soluti… 2/40
,5/13/25, 5:04 PM CWEA Environmental Compliance (2025) COMPREHENSIVE QUESTIONS AND VERIFIED DETAILED SOLUTIONS |COMPL…
The following type of Venturi.
flow measuring device
can be installed in a pipe
flowing full:
What total volume of spill 305,992 gallons
containment capacity in
gallons is needed for the
following tanks if a 12-
inch rainfall occurs
during a 24-hour period
on a common 200-foot
by 200-foot spill-
containment pad?
Assume 100 percent
containment of all tank
capacity is needed. Tank
I: Cube, 6 ft wide, 6 ft
long, and 6 ft high. Tank
II: Rectangular, 4 ft wide,
20 ft long, and 3 ft high.
Tank III: Cylindrical, 8 ft in
diameter and 9 ft high.
An industry has a 0.42 lb/day
wastewater discharge of
10,000 gallons per day
containing 5 mg/L of
copper. What is the
industry's mass emission
rate of copper in pounds
per day?
What kind of container Glass, Cool 4°C, H2SO4 to pH<2
and preservative is
required for samples to
be analyzed for oil and
grease?
is the ability to trace sample possession and
A chain-of-custody form:
handling from collection through analysis.
https://quizlet.com/1043477159/cwea-environmental-compliance-2025-comprehensive-questions-and-verified-detailed-solutions-complete-soluti… 3/40
, 5/13/25, 5:04 PM CWEA Environmental Compliance (2025) COMPREHENSIVE QUESTIONS AND VERIFIED DETAILED SOLUTIONS |COMPL…
The BOD determination is determine the relative oxygen requirements of
an empirical test in which wastewaters, effluents, and polluted waters.
standardized laboratory
procedures are used to:
is large enough to enter and work in, has a
A confined space is one
restricted entry/exit, and is not meant for continuous
that:
occupancy.
Industrial plants breweries.
producing wastes with a
high suspended solids
content include:
Whenever an inspector Two
or sampling technician is
in a manhole, how many
people should there be
above to respond in the
event of an emergency?
Alkalinity is reported as: alkalinity, mg/L CaCO3.
What is the normality of 0.0025 N
sodium hydroxide
(NaOH) solution of 25 mL
if a 0.01 N sulfuric acid
solution neutralizes 100
mL of the NaOH
solution?
A major pollutant of copper.
concern from a printed
circuit board shop is:
To find the proper check the MSDS for chemicals used.
protective gear to use
while inspecting an area
where a hazardous
chemical is used, you
would:
https://quizlet.com/1043477159/cwea-environmental-compliance-2025-comprehensive-questions-and-verified-detailed-solutions-complete-soluti… 4/40
