New Mexico Water Operator Certification Study
Guide Exam With 100% Actual Answers 2025
Updated.
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
What is the Maximum total chlorine residual allowed by the
Disinfectant-Disinfection By-Prouducts Rule - ANSWER---4 mg/l
What type of contaminant is Iron? - ANSWER---Secondary
Which Primary Contaminant is sometimes added to water supplies to
prevent tooth decay? - ANSWER---Fluoride
The Failure of a public water system to comply with the NM Drinking
Water Regulations must be reported to NMED within? - ANSWER---48
hours
The MCl for Total Trihalomethanes is? - ANSWER---0.1mg/l
SDWA sampling results must be reported to ? - ANSWER---New Mexico
Enviroment Department (NMED)
, New Mexico Water Operator Certification Study
Guide Exam With 100% Actual Answers 2025
Updated.
Ground water systems must sample for inorganic chemicals every? -
ANSWER---(3) Three Years
The SDWA Compliance Cycle for Standardized Monitoring Rule consists
of Three? - ANSWER---Compliance Periods
How many bacterilogical samples(BAC-T) must be taken every month
before a system is allowed to have TWO positive samples without
violating the drinking water standard? - ANSWER---40 or less then 5%
on monthly samples
What are the action levels for Lead and Copper? - ANSWER---0.015
mg/l Lead 1.3 mg/l Copper
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 %
, New Mexico Water Operator Certification Study
Guide Exam With 100% Actual Answers 2025
Updated.
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
Guide Exam With 100% Actual Answers 2025
Updated.
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
What is the Maximum total chlorine residual allowed by the
Disinfectant-Disinfection By-Prouducts Rule - ANSWER---4 mg/l
What type of contaminant is Iron? - ANSWER---Secondary
Which Primary Contaminant is sometimes added to water supplies to
prevent tooth decay? - ANSWER---Fluoride
The Failure of a public water system to comply with the NM Drinking
Water Regulations must be reported to NMED within? - ANSWER---48
hours
The MCl for Total Trihalomethanes is? - ANSWER---0.1mg/l
SDWA sampling results must be reported to ? - ANSWER---New Mexico
Enviroment Department (NMED)
, New Mexico Water Operator Certification Study
Guide Exam With 100% Actual Answers 2025
Updated.
Ground water systems must sample for inorganic chemicals every? -
ANSWER---(3) Three Years
The SDWA Compliance Cycle for Standardized Monitoring Rule consists
of Three? - ANSWER---Compliance Periods
How many bacterilogical samples(BAC-T) must be taken every month
before a system is allowed to have TWO positive samples without
violating the drinking water standard? - ANSWER---40 or less then 5%
on monthly samples
What are the action levels for Lead and Copper? - ANSWER---0.015
mg/l Lead 1.3 mg/l Copper
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 %
, New Mexico Water Operator Certification Study
Guide Exam With 100% Actual Answers 2025
Updated.
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
