Frequently Tested Exam Questions With Reviewed 100% Correct Detailed Answers
Guaranteed Pass!!Current Update!!
What is MCL? Maximum Contaminent Level (MCL)
A public water system is any system that serves a popula-
15 services connections or 25 people regulary
tion greater that or equal to ?
What is the Maximum total chlorine residual allowed by
4 mg/l
the Disinfectant-Disinfection By-Prouducts Rule
What type of contaminant is Iron? Secondary
Which Primary Contaminant is sometimes added to water
Fluoride
supplies to prevent tooth decay?
The Failure of a public water system to comply with the NM
Drinking Water Regulations must be reported to NMED 48 hours
within?
The MCl for Total Trihalomethanes is? 0.1mg/l
SDWA sampling results must be reported to ? New Mexico Enviroment Department (NMED)
Ground water systems must sample for inorganic chemi-
(3) Three Years
cals every?
The SDWA Compliance Cycle for Standardized Monitoring
Compliance Periods
Rule consists of Three?
How many bacterilogical samples(BAC-T) must be taken
every month before a system is allowed to have TWO pos-
40 or less then 5% on monthly samples
itive samples without violating the drinking water stan-
dard?
What are the action levels for Lead and Copper? 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 5 samples
month?
0.1 %
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, Water Operator Certification ( New Mexico) Verified Multiple Choice and Conceptual Actual
Frequently Tested Exam Questions With Reviewed 100% Correct Detailed Answers
Guaranteed Pass!!Current Update!!
if a 3-log removal is required for Giardia Lamblia what
percentage of organisms can survive and still meet re-
quirements ?
which Primary Inorganic Contaminant poses an immedi-
Nitrates
ate health risk?
Pregnant mothers and infants under 18 months can de-
Why do Nitrates poses immediate health risk?
velop a condition known as Blue Baby Syndrome
The Presence of Nitrates in the bloodstream that reduces
What is Blue Baby Syndrome?
oxygen uptake that gives the skin a blue tint
Why is Turbidity a Primary Contaminant? It shields harmful bacteria from disinfection processes
What is a Nephelometer? Device used to measure NTU's
Turbidity is Measured with? Turbidimeter or Nephelometer
How Long must chemical sampling results be kept? 10 Years
How long must Bacteriological sampling results be kept? 5 years
microorganisms whose presence in water indicates prob-
What is the definitioin of a indicator organism?
able presence of pathogens (disease-causing organisms).
white powder used to Neutralize any chlorine that may kill
What is Sodium Thiosulphate?
bacteria
To insure the water being sampled is from the main and
Why should you Flush sample line before sampling?
not the customers plumbling
Which factor is used to determine how many Bac-t sam-
Number of people served
ples must be taken?
What is the minimim number of Bac-T sample(s) required
1
each month?
Anytime the MCL is exceeded and fecal coliform positive
It is a Non-acute violation
results come back from any of the sample(s)?
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