Georgia Water Laboratory Analyst | Drinking Water Laboratory Certification | Complete Questions & Verified Answers
Are volumetric flasks found more commonly calibrated To Contain
at To Deliver (TD) or To Contain (TC)?
volumetric glassware is typically calibrated at what 20 Celcius
temperature?
What do the initials TD stand for? To Deliver
What do the initials TC stand for? To Contain
If the initial reading on a buret is 15.4ml and the final 27.2ml - 15.4ml = 11.8ml
reading after titration is 27.2ml, mow many ml of titrant
was removed from the buret?
What are the two units of measurement on the Absorbance and %Transmittance
spectrophotometer?
What is the primary purpose for treating drinking To provide safe, potable water to the public
water?
What is the secondary purpose for treating drinking To provide water that is aesthetically pleasing. (Tastes good, looks good,
water? smells good)
What federal organization administrates the Safe US Environmental Protection Agency (EPA)
Drinking Water Act?
Name six principal functions of the Safe Drinking Water 1. Sets MCLs
Act; 2. Delegates primacy to states
3. Monitors primacy states
4. Operates programs, when primacy is unavailable
5. Researches drinking water contaminants and treatment
6. Provides technical assistance to states and public water systems
Define primacy and how it relates to regulatory Primacy- Primary enforcement responsibility. The primacy states enforce the
compliance; SDWA on their constituents.
Where are the federal Safe Drinking Water Regulations 40 CFR 141
found?
Where are the State of Georgia Safe Drinking Water Rules for Safe Drinking Water Chapter 391-3-5 of the Rules of the GA DNR EPD.
regulations found?
, Georgia Water Laboratory Analyst | Drinking Water Laboratory Certification | Complete Questions & Verified Answers
The daily updates to the CFR are found in what Federal Register
document?
Define MCL Maximum Contaminant Level
Define MCLG The highest level of contaminant in drinking water below which there is no
known or expected health risk.
The EPA 500 Series of test methods include what Organic Compounds for Drinking Water
parameters?
A process for removal of solids before filtration by Sedimentation
gravity or separation;
A process which inactivates pathogenic organisms in Disinfection
water by chemical oxidants or equivalent agents;
The addition of sufficient coagulant for improved Enhanced coagulation
removal of disinfection byproduct precursors by
conventional filtration treatment;
A process for removing particulate matter from water Filtration
by passage through porous media;
A process to enhance agglomeration or collection of Flocculation
smaller floc particles into larger, more easily settleable
particles by gentle stirring by hydraulic or mechanical
means;
A process of using chemicals and mixing by which Coagulation
colloidal suspended materials are agglomerated into
flocs;
Describe the difference between a first draw sample A first draw sample is collected immediately after opening the sample tap. It
and a grab sample; represents the quality of the water that is standing in the plumbing. A grab
sample is collected after a sample tap has been flushed. It represents the
quality of the water at the source of the sampling tap.
What is the cause of most erroneous lab results? Sampling Error
Define sample preservation; The physical, biological or chemical treatment of a sample to preserve the
condition and concentration of the target contaminants for the entire holding
time.
Are volumetric flasks found more commonly calibrated To Contain
at To Deliver (TD) or To Contain (TC)?
volumetric glassware is typically calibrated at what 20 Celcius
temperature?
What do the initials TD stand for? To Deliver
What do the initials TC stand for? To Contain
If the initial reading on a buret is 15.4ml and the final 27.2ml - 15.4ml = 11.8ml
reading after titration is 27.2ml, mow many ml of titrant
was removed from the buret?
What are the two units of measurement on the Absorbance and %Transmittance
spectrophotometer?
What is the primary purpose for treating drinking To provide safe, potable water to the public
water?
What is the secondary purpose for treating drinking To provide water that is aesthetically pleasing. (Tastes good, looks good,
water? smells good)
What federal organization administrates the Safe US Environmental Protection Agency (EPA)
Drinking Water Act?
Name six principal functions of the Safe Drinking Water 1. Sets MCLs
Act; 2. Delegates primacy to states
3. Monitors primacy states
4. Operates programs, when primacy is unavailable
5. Researches drinking water contaminants and treatment
6. Provides technical assistance to states and public water systems
Define primacy and how it relates to regulatory Primacy- Primary enforcement responsibility. The primacy states enforce the
compliance; SDWA on their constituents.
Where are the federal Safe Drinking Water Regulations 40 CFR 141
found?
Where are the State of Georgia Safe Drinking Water Rules for Safe Drinking Water Chapter 391-3-5 of the Rules of the GA DNR EPD.
regulations found?
, Georgia Water Laboratory Analyst | Drinking Water Laboratory Certification | Complete Questions & Verified Answers
The daily updates to the CFR are found in what Federal Register
document?
Define MCL Maximum Contaminant Level
Define MCLG The highest level of contaminant in drinking water below which there is no
known or expected health risk.
The EPA 500 Series of test methods include what Organic Compounds for Drinking Water
parameters?
A process for removal of solids before filtration by Sedimentation
gravity or separation;
A process which inactivates pathogenic organisms in Disinfection
water by chemical oxidants or equivalent agents;
The addition of sufficient coagulant for improved Enhanced coagulation
removal of disinfection byproduct precursors by
conventional filtration treatment;
A process for removing particulate matter from water Filtration
by passage through porous media;
A process to enhance agglomeration or collection of Flocculation
smaller floc particles into larger, more easily settleable
particles by gentle stirring by hydraulic or mechanical
means;
A process of using chemicals and mixing by which Coagulation
colloidal suspended materials are agglomerated into
flocs;
Describe the difference between a first draw sample A first draw sample is collected immediately after opening the sample tap. It
and a grab sample; represents the quality of the water that is standing in the plumbing. A grab
sample is collected after a sample tap has been flushed. It represents the
quality of the water at the source of the sampling tap.
What is the cause of most erroneous lab results? Sampling Error
Define sample preservation; The physical, biological or chemical treatment of a sample to preserve the
condition and concentration of the target contaminants for the entire holding
time.
