Study your flashcards anywhere!

Download the official Cram app for free >

  • Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off
Reading...
Front

How to study your flashcards.

Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key

Up/Down arrow keys: Flip the card between the front and back.down keyup key

H key: Show hint (3rd side).h key

A key: Read text to speech.a key

image

Play button

image

Play button

image

Progress

1/24

Click to flip

24 Cards in this Set

  • Front
  • Back

Are individual pathogens regulated with MCL's?

No

What is the standard measurement for microbiological quality of drinking water?

Coliform Bacteria

What is the MRDL for free chlorine?

4.0 mg/l

What is the most common bacteria found in the human intestine?

E. Coli

What is the term for bacteria that can live with or without oxygen?

Facultative

What is the MCL for coliform bacteria in a distribution system?

5%

What are the three steps in the MPN method?

Presumptive


Confirmed


Completed

What is the product of lactose fermentation?

Carbon dioxide

What is the product of lactose fermentation?

Carbon dioxide

What is the special ingredient in the confirmed test?

Brilliant green bile

What is the analysis that uses MMO-MUG?

Colilert

Where should SCBA's be stored?

Relatively close - but not in- the chlorine storage area.

How many fusible plugs are there on a one ton chlorine storage container?

Six

How many outlet valves are there on a one ton chlorine container?

Two

How many outlet valves are there on a one ton chlorine container?

Two

Are groundwater sources likely to have algae or pathogen related quality concerns?

No

Which pathogens are the most difficult to remove from water?

Viruses

Which particle size category includes the pathogens?

Colloidal

Name the two barriers to pathogens required by the surface water treatment rule:

Removal and inactivation

What is the automatic Giardia removal credit awarded for a properly operated conventional treatment plant?

2.5 logs

Name the four chemical disinfectants approved by the SWTR:

Chlorine


Chloramines


Chlorine Dioxide


Ozone

What is the means of guaging disinfectant effectiveness under the SWTR?

CT Calculation

What is the minimum virus credit required from disinfection at a properly operated direct filtration plant?

3 logs

What are the two constituents in water that we call hardness?

Calcium and magnesium