Water Operator Certification Study Material
(New Mexico) (Basic) With Correct Answers
Maximum Contaminent Level
MCL
Public water system is a system that serves a population of ___ or more
regularly
25
Maximum total chlorine residual ___ mg/l
4
What type of contaminant is Iron
Secondary
Primary contaminant is sometimes added to water supplies to prevent tooth
decay
,Fluoride
The Failure of a public water system to comply with the NM Drinking Water
Regulations must be reported to NMED within ___ hours
48
MCL for Total Trihalomethanes ___ mg/l
0.1
SDWA sampling results must be reported to
New Mexico Enviroment Department (NMED)
Ground water systems must sample for inorganic chemicals every ___ years
3
The SDWA Compliance Cycle for Standardized Monitoring Rule consists of ___
Compliance Periods
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?
40
Action level for Lead ___ mg/l
0.015
If Bacteriological retakes are done this month what is the minimum number of
samples that must be turned in next month?
5
if a 3-log removal is required for Giardia Lamblia what percentage of organisms
can survive and still meet requirements
0.1
Primary Inorganic Contaminant poses an immediate health risk
Nitrates
, The Presence of Nitrates in the bloodstream that reduces oxygen uptake that
gives the skin a blue tint
Blue Baby Syndrome
Primary Contaminant that shields harmful bacteria from disinfection processes
Turbidity
Device used to measure NTU's
Nephelometer
Turbidity is Measured with
Turbidimeter or Nephelometer
Chemical sampling results be kept ___ years
10
(New Mexico) (Basic) With Correct Answers
Maximum Contaminent Level
MCL
Public water system is a system that serves a population of ___ or more
regularly
25
Maximum total chlorine residual ___ mg/l
4
What type of contaminant is Iron
Secondary
Primary contaminant is sometimes added to water supplies to prevent tooth
decay
,Fluoride
The Failure of a public water system to comply with the NM Drinking Water
Regulations must be reported to NMED within ___ hours
48
MCL for Total Trihalomethanes ___ mg/l
0.1
SDWA sampling results must be reported to
New Mexico Enviroment Department (NMED)
Ground water systems must sample for inorganic chemicals every ___ years
3
The SDWA Compliance Cycle for Standardized Monitoring Rule consists of ___
Compliance Periods
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?
40
Action level for Lead ___ mg/l
0.015
If Bacteriological retakes are done this month what is the minimum number of
samples that must be turned in next month?
5
if a 3-log removal is required for Giardia Lamblia what percentage of organisms
can survive and still meet requirements
0.1
Primary Inorganic Contaminant poses an immediate health risk
Nitrates
, The Presence of Nitrates in the bloodstream that reduces oxygen uptake that
gives the skin a blue tint
Blue Baby Syndrome
Primary Contaminant that shields harmful bacteria from disinfection processes
Turbidity
Device used to measure NTU's
Nephelometer
Turbidity is Measured with
Turbidimeter or Nephelometer
Chemical sampling results be kept ___ years
10
