New Mexico Water Operator Certification Actual
Exam, Study Guide And Practice Exam Newest
2025/2026 Complete Questions And Correct
Detailed Answers (Verified Answers) |Already
Graded A+||Brand New Version!!
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
,2|Page
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
, 3|Page
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