CWEA Lab Analyst grade I Vocab questions with accurate detailed
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answers
40 CFR 121- 124 - ✔✔The federal storm water regulations for the permitting of municipalities
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and industries. Regulations define storm water terms, permitting, inspecting, and sampling
|| || || || || || || || || || ||
measurements
40 CFR 136 - ✔✔The regulations for sampling preservation and analyses of water, wastewater,
|| || || || || || || || || || || || || ||
and solid waste|| ||
40 CFR 403 - ✔✔The federal regulations defining the elements of a pretreatment program,
|| || || || || || || || || || || || || ||
prohibited discharges, and the approval process for establishing a pretreatment program
|| || || || || || || || || ||
Acid - ✔✔A compound which liberates hydrogen ions and has a pH below 7
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Alkalinity - ✔✔The measurement of a sample's capacity to neutralize acid
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Approval Authority - ✔✔The agency determining whether a pretreatment program contains the
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necessary elements to meet the intent of the Act || || || || || || || ||
Atomic Weight - ✔✔The sum of the number of protons and the number of neutrons in the nucleus
|| || || || || || || || || || || || || || || || ||
of an atom; atomic weights of elements are found on the periodic table
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Base - ✔✔A compound which liberates hydroxide ions and have a pH above 7
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Biochemical Oxygen Demands (BOD) - ✔✔The quality of oxygen utilized in the biochemical
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oxidation of organic matter under standard lab procedures for 5 days at 20 °C, usually expressed
|| || || || || || || || || || || || || || || ||
as a concentration (mg/L). BOD measurements are used to indicate the organic "strength" of
|| || || || || || || || || || || || || ||
wastewater
, Biological Treament - ✔✔A waste treatment process by which bacteria and other microorganisms
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break down complex organic or inorganic (ie ammonia) materials into simple, nontoxic, more
|| || || || || || || || || || || || || ||
stable compounds ||
Categorical Industrial User (CIU) - ✔✔An industrial user (refer to IU) that is conducting
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processes subject to a categorical standard promulgated by the US EPA
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centrifugal pumps - ✔✔pumps using centrifugal force to convey liquid. Discharge will vary
|| || || || || || || || || || || || ||
according to inlet and discharge pressure || || || || ||
Chain-of- Custody - ✔✔A legal record (which may be a series of records) of each person who
|| || || || || || || || || || || || || || || || ||
had possession of an environmental sample, from the person releasing the sample, to the person
|| || || || || || || || || || || || || || ||
who collected the sample, to the person who analyzed the sample in the laboratory, to the person
|| || || || || || || || || || || || || || || || ||
who witnessed the disposal of the sample
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Chemical Oxygen Demand (COD) - ✔✔The amount of oxygen (expressed in mg/L) consumed
|| || || || || || || || || || || || ||
from the oxidation of pollutants during a specific test
|| || || || || || || ||
As such, COD is a measure of the oxygen-consuming capacity of the pollutant present in
|| || || || || || || || || || || || || || ||
wastewater. The results of the COD test are not necessarily related to the BOD, because the
|| || || || || || || || || || || || || || || ||
chemical oxidant responsible for utilizing the oxygen may react with substances which bacteria
|| || || || || || || || || || || || ||
do no stabilize.
|| ||
Cipolletti Water - ✔✔A trapezoidal sharp-crested weir for measurement of liquid discharge in
|| || || || || || || || || || || || ||
open channels ||
Clean Water Act (CWA) - ✔✔Public law (PL 92-500) enacted in 1972, which sets the framework
|| || || || || || || || || || || || || || || ||
for the imposition of industrial wastewater control programs on municipalities and the regulation
|| || || || || || || || || || || || ||
of industrial users.
|| ||
CWA Sections 307(b)(c) sets forth the authority for the US EPA to est pretreatment standards for
|| || || || || || || || || || || || || || || ||
existing and new sources discharging industrial wastewater to publicly owned treatment works
|| || || || || || || || || || || ||
(POTWs)
|| || || || || || || || || ||
answers
40 CFR 121- 124 - ✔✔The federal storm water regulations for the permitting of municipalities
|| || || || || || || || || || || || || || ||
and industries. Regulations define storm water terms, permitting, inspecting, and sampling
|| || || || || || || || || || ||
measurements
40 CFR 136 - ✔✔The regulations for sampling preservation and analyses of water, wastewater,
|| || || || || || || || || || || || || ||
and solid waste|| ||
40 CFR 403 - ✔✔The federal regulations defining the elements of a pretreatment program,
|| || || || || || || || || || || || || ||
prohibited discharges, and the approval process for establishing a pretreatment program
|| || || || || || || || || ||
Acid - ✔✔A compound which liberates hydrogen ions and has a pH below 7
|| || || || || || || || || || || || ||
Alkalinity - ✔✔The measurement of a sample's capacity to neutralize acid
|| || || || || || || || || ||
Approval Authority - ✔✔The agency determining whether a pretreatment program contains the
|| || || || || || || || || || || ||
necessary elements to meet the intent of the Act || || || || || || || ||
Atomic Weight - ✔✔The sum of the number of protons and the number of neutrons in the nucleus
|| || || || || || || || || || || || || || || || ||
of an atom; atomic weights of elements are found on the periodic table
|| || || || || || || || || || || || ||
Base - ✔✔A compound which liberates hydroxide ions and have a pH above 7
|| || || || || || || || || || || || ||
Biochemical Oxygen Demands (BOD) - ✔✔The quality of oxygen utilized in the biochemical
|| || || || || || || || || || || || ||
oxidation of organic matter under standard lab procedures for 5 days at 20 °C, usually expressed
|| || || || || || || || || || || || || || || ||
as a concentration (mg/L). BOD measurements are used to indicate the organic "strength" of
|| || || || || || || || || || || || || ||
wastewater
, Biological Treament - ✔✔A waste treatment process by which bacteria and other microorganisms
|| || || || || || || || || || || ||
break down complex organic or inorganic (ie ammonia) materials into simple, nontoxic, more
|| || || || || || || || || || || || || ||
stable compounds ||
Categorical Industrial User (CIU) - ✔✔An industrial user (refer to IU) that is conducting
|| || || || || || || || || || || || || ||
processes subject to a categorical standard promulgated by the US EPA
|| || || || || || || || || ||
centrifugal pumps - ✔✔pumps using centrifugal force to convey liquid. Discharge will vary
|| || || || || || || || || || || || ||
according to inlet and discharge pressure || || || || ||
Chain-of- Custody - ✔✔A legal record (which may be a series of records) of each person who
|| || || || || || || || || || || || || || || || ||
had possession of an environmental sample, from the person releasing the sample, to the person
|| || || || || || || || || || || || || || ||
who collected the sample, to the person who analyzed the sample in the laboratory, to the person
|| || || || || || || || || || || || || || || || ||
who witnessed the disposal of the sample
|| || || || || ||
Chemical Oxygen Demand (COD) - ✔✔The amount of oxygen (expressed in mg/L) consumed
|| || || || || || || || || || || || ||
from the oxidation of pollutants during a specific test
|| || || || || || || ||
As such, COD is a measure of the oxygen-consuming capacity of the pollutant present in
|| || || || || || || || || || || || || || ||
wastewater. The results of the COD test are not necessarily related to the BOD, because the
|| || || || || || || || || || || || || || || ||
chemical oxidant responsible for utilizing the oxygen may react with substances which bacteria
|| || || || || || || || || || || || ||
do no stabilize.
|| ||
Cipolletti Water - ✔✔A trapezoidal sharp-crested weir for measurement of liquid discharge in
|| || || || || || || || || || || || ||
open channels ||
Clean Water Act (CWA) - ✔✔Public law (PL 92-500) enacted in 1972, which sets the framework
|| || || || || || || || || || || || || || || ||
for the imposition of industrial wastewater control programs on municipalities and the regulation
|| || || || || || || || || || || || ||
of industrial users.
|| ||
CWA Sections 307(b)(c) sets forth the authority for the US EPA to est pretreatment standards for
|| || || || || || || || || || || || || || || ||
existing and new sources discharging industrial wastewater to publicly owned treatment works
|| || || || || || || || || || || ||
(POTWs)
