New Mexico Water Operator Certification Actual Exam,
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Maximum Contaminent Level - Answer-MCL
Public water system is a system that serves a population
of ___ or more regularly - Answer-25
Maximum total chlorine residual ___ mg/l - Answer-4
What type of contaminant is Iron - Answer-Secondary
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 ___ hours - Answer-48
,2|Page
MCL for Total Trihalomethanes ___ mg/l - Answer-0.1
SDWA sampling results must be reported to - Answer-New
Mexico Enviroment Department (NMED)
Ground water systems must sample for inorganic
chemicals every ___ years - Answer-3
The SDWA Compliance Cycle for Standardized Monitoring
Rule consists of ___ Compliance Periods - Answer-3
___ or less than 5% bacteriological samples must be
taken every month before a system is allowed to have
TWO positive samples without violating the drinking water
standard? - Answer-40
Action level for Lead ___ mg/l - Answer-0.015
If Bacteriological retakes are done this month what is the
minimum number of samples that must be turned in next
month? - Answer-5
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if a 3-log removal is required for Giardia Lamblia what
percentage of organisms can survive and still meet
requirements - Answer-0.1
Primary Inorganic Contaminant poses an immediate
health risk - Answer-Nitrates
The Presence of Nitrates in the bloodstream that reduces
oxygen uptake that gives the skin a blue tint - Answer-Blue
Baby Syndrome
Primary Contaminant that shields harmful bacteria from
disinfection processes - Answer-Turbidity
Device used to measure NTU's - Answer-Nephelometer
Turbidity is Measured with - Answer-Turbidimeter or
Nephelometer
Chemical sampling results be kept ___ years - Answer-10