New Mexico Water Level 4 (Distribution)
Operator Certification Exam (2026/2027) –
NMED Advanced Water Distribution Exam |
Questions with 100% Verified Answers
If Bacteriological retakes are done this month what is the minimum
number of samples that must be turned in next month? - ANSWERS-5
if a 3-log removal is required for Giardia Lamblia what percentage of
organisms can survive and still meet requirements - ANSWERS-0.1
Primary Inorganic Contaminant poses an immediate health risk -
ANSWERS-Nitrates
The Presence of Nitrates in the bloodstream that reduces oxygen
uptake that gives the skin a blue tint - ANSWERS-Blue Baby Syndrome
Primary Contaminant that shields harmful bacteria from disinfection
processes - ANSWERS-Turbidity
Device used to measure NTU's - ANSWERS-Nephelometer
Turbidity is Measured with - ANSWERS-Turbidimeter or Nephelometer
,Chemical sampling results be kept ___ years - ANSWERS-10
Bacteriological sampling results be kept ___ years - ANSWERS-5
Microorganisms whose presence in water indicates probable presence
of pathogens. - ANSWERS-Indicator organism
White powder used to neutralize chlorine - ANSWERS-Sodium
Thiosulphate
Maximum Contaminent Level - ANSWERS-MCL
Public water system is a system that serves a population of ___ or
more regularly - ANSWERS-25
Maximum total chlorine residual ___ mg/l - ANSWERS-4
What type of contaminant is Iron - ANSWERS-Secondary
Primary contaminant is sometimes added to water supplies to prevent
tooth decay - ANSWERS-Fluoride
The Failure of a public water system to comply with the NM Drinking
Water Regulations must be reported to NMED within ___ hours -
ANSWERS-48
, MCL for Total Trihalomethanes ___ mg/l - ANSWERS-0.1
SDWA sampling results must be reported to - ANSWERS-New Mexico
Enviroment Department (NMED)
Ground water systems must sample for inorganic chemicals every ___
years - ANSWERS-3
The SDWA Compliance Cycle for Standardized Monitoring Rule
consists of ___ Compliance Periods - ANSWERS-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? - ANSWERS-40
Action level for Lead ___ mg/l - ANSWERS-0.015
To insure the water being sampled is from the main and not the
customers plumbling - ANSWERS-Flush line
Number is used to determine how many Bac-t samples must be taken -
ANSWERS-People served
Operator Certification Exam (2026/2027) –
NMED Advanced Water Distribution Exam |
Questions with 100% Verified Answers
If Bacteriological retakes are done this month what is the minimum
number of samples that must be turned in next month? - ANSWERS-5
if a 3-log removal is required for Giardia Lamblia what percentage of
organisms can survive and still meet requirements - ANSWERS-0.1
Primary Inorganic Contaminant poses an immediate health risk -
ANSWERS-Nitrates
The Presence of Nitrates in the bloodstream that reduces oxygen
uptake that gives the skin a blue tint - ANSWERS-Blue Baby Syndrome
Primary Contaminant that shields harmful bacteria from disinfection
processes - ANSWERS-Turbidity
Device used to measure NTU's - ANSWERS-Nephelometer
Turbidity is Measured with - ANSWERS-Turbidimeter or Nephelometer
,Chemical sampling results be kept ___ years - ANSWERS-10
Bacteriological sampling results be kept ___ years - ANSWERS-5
Microorganisms whose presence in water indicates probable presence
of pathogens. - ANSWERS-Indicator organism
White powder used to neutralize chlorine - ANSWERS-Sodium
Thiosulphate
Maximum Contaminent Level - ANSWERS-MCL
Public water system is a system that serves a population of ___ or
more regularly - ANSWERS-25
Maximum total chlorine residual ___ mg/l - ANSWERS-4
What type of contaminant is Iron - ANSWERS-Secondary
Primary contaminant is sometimes added to water supplies to prevent
tooth decay - ANSWERS-Fluoride
The Failure of a public water system to comply with the NM Drinking
Water Regulations must be reported to NMED within ___ hours -
ANSWERS-48
, MCL for Total Trihalomethanes ___ mg/l - ANSWERS-0.1
SDWA sampling results must be reported to - ANSWERS-New Mexico
Enviroment Department (NMED)
Ground water systems must sample for inorganic chemicals every ___
years - ANSWERS-3
The SDWA Compliance Cycle for Standardized Monitoring Rule
consists of ___ Compliance Periods - ANSWERS-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? - ANSWERS-40
Action level for Lead ___ mg/l - ANSWERS-0.015
To insure the water being sampled is from the main and not the
customers plumbling - ANSWERS-Flush line
Number is used to determine how many Bac-t samples must be taken -
ANSWERS-People served
