AWWA ABC Water Distribution Grades 1 & 2 Exam with || || || || || || || || ||
accurate detailed solutions
|| || ||
Which agency sets legal limits on the concentration levels of harmful contaminants in
|| || || || || || || || || || || || ||
potable water distributed to customers? - ✔✔US Environmental Protection Agency
|| || || || || || || || ||
The number of monthly distributions system bacteriologiacal samples required is - ✔✔Based
|| || || || || || || || || || ||
on the population served
|| || || ||
What is the maximum contaminant level for total trihalomethanes (TTHM) in the united
|| || || || || || || || || || || || ||
States? - ✔✔0.080 mg/L || || ||
Under the Surface Water Treatment Rule, disinfection residuals must be collected at the
|| || || || || || || || || || || || ||
same location in the distribution system as - ✔✔coliform samples
|| || || || || || || || ||
Iron can cause "red water" and thus customer complaints when its concentration is above
|| || || || || || || || || || || || || ||
its secondary maximum contaminant level of - ✔✔0.30 mg/L
|| || || || || || || ||
The goal of the Surface Drinking Water Act is for each ________ to accept primary
|| || || || || || || || || || || || || || ||
enforcement responsibility (primacy) for the operation of the state's drinking water program.
|| || || || || || || || || || ||
- ✔✔State
|| ||
What is the objective of Total Coliform Rule? - ✔✔To promote routine surveillance of
|| || || || || || || || || || || || || ||
distribution system water quality to search for fecal matter and/or disease-causing bacteria
|| || || || || || || || || || ||
Which agency sets standards on the concentration levels of harmful contaminants in
|| || || || || || || || || || || ||
drinking water? - ✔✔EPA || || ||
, 2
Explain the difference between the different tiers of violations. Which tier is the most
|| || || || || || || || || || || || || ||
serious? - ✔✔Tier 1 = 24 hours (most severe)
|| || || || || || || || ||
Tier 2= 30 days
|| || ||
Tier 3= 1 year
|| || ||
A positive E. Coli test must be reported to the primacy health agency within what time
|| || || || || || || || || || || || || || || ||
period? - ✔✔24 hours || || ||
How is the required number of monthly bacteriological samples determined? -
|| || || || || || || || || || ||
✔✔Population served ||
What is the action level for lead in first-draw samples taken from customer taps? -
|| || || || || || || || || || || || || || ||
✔✔0.015 mg/L ||
A water system is designated a community public water system if it serves how many
|| || || || || || || || || || || || || || ||
homes? - ✔✔15 or more || || || ||
What authority provides specific water sampling instructions? - ✔✔The state primacy
|| || || || || || || || || || ||
agency
According to the Lead and Copper Rule, what is the action level for lead? - ✔✔0.015 mg/L
|| || || || || || || || || || || || || || || ||
Head is measured in - ✔✔Feet
|| || || || ||
A plat is - ✔✔a map
|| || || || ||