WATER OPERATOR (NEW MEXICO)
CERTIFICATION LEVEL 3 STUDY GUIDE
QUESTIONS AND VERIFIED ANSWERS LATEST
2025-2026 UPDATE
If Bacteriological retakes are done this month what is the minimum
number of samples that must be turned in next month? - Answer-5
samples
if a 3-log removal is required for Giardia Lamblia what percentage of
organisms can survive and still meet requirements ? - Answer-0.1 %
which Primary Inorganic Contaminant poses an immediate health risk?
- Answer-Nitrates
Why do Nitrates poses immediate health risk? - Answer-Pregnant
mothers and infants under 18 months can develop a condition known as
Blue Baby Syndrome
What is Blue Baby Syndrome? - Answer-The Presence of Nitrates in
the bloodstream that reduces oxygen uptake that gives the skin a blue
tint
, Why is Turbidity a Primary Contaminant? - Answer-It shields harmful
bacteria from disinfection processes
What is a Nephelometer? - Answer-Device used to measure NTU's
Turbidity is Measured with? - Answer-Turbidimeter or Nephelometer
How Long must chemical sampling results be kept? - Answer-10 Years
How long must Bacteriological sampling results be kept? - Answer-5
years
What is the definitioin of a indicator organism? - Answer-
microorganisms whose presence in water indicates probable presence of
pathogens (disease-causing organisms).
What is Sodium Thiosulphate? - Answer-white powder used to
Neutralize any chlorine that may kill bacteria
What is MCL? - Answer-Maximum Contaminent Level (MCL)
A public water system is any system that serves a population greater
that or equal to ? - Answer-15 services connections or 25 people
regulary
CERTIFICATION LEVEL 3 STUDY GUIDE
QUESTIONS AND VERIFIED ANSWERS LATEST
2025-2026 UPDATE
If Bacteriological retakes are done this month what is the minimum
number of samples that must be turned in next month? - Answer-5
samples
if a 3-log removal is required for Giardia Lamblia what percentage of
organisms can survive and still meet requirements ? - Answer-0.1 %
which Primary Inorganic Contaminant poses an immediate health risk?
- Answer-Nitrates
Why do Nitrates poses immediate health risk? - Answer-Pregnant
mothers and infants under 18 months can develop a condition known as
Blue Baby Syndrome
What is Blue Baby Syndrome? - Answer-The Presence of Nitrates in
the bloodstream that reduces oxygen uptake that gives the skin a blue
tint
, Why is Turbidity a Primary Contaminant? - Answer-It shields harmful
bacteria from disinfection processes
What is a Nephelometer? - Answer-Device used to measure NTU's
Turbidity is Measured with? - Answer-Turbidimeter or Nephelometer
How Long must chemical sampling results be kept? - Answer-10 Years
How long must Bacteriological sampling results be kept? - Answer-5
years
What is the definitioin of a indicator organism? - Answer-
microorganisms whose presence in water indicates probable presence of
pathogens (disease-causing organisms).
What is Sodium Thiosulphate? - Answer-white powder used to
Neutralize any chlorine that may kill bacteria
What is MCL? - Answer-Maximum Contaminent Level (MCL)
A public water system is any system that serves a population greater
that or equal to ? - Answer-15 services connections or 25 people
regulary
