New Mexico Water Operator Certification 2025:
Ultimate Study Guide with Questions & Verified
Answers ( 100% Verified ) , Success Guaranteed.
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)
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 %
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
Ultimate Study Guide with Questions & Verified
Answers ( 100% Verified ) , Success Guaranteed.
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)
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 %
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
