Regulatory agency responsible for the protection of human health and the environment.
What is the Environmental Protection agency
Component of a centrifugal pump consisting of a series of blades or vanes.
What is an impeller?
Chemical used in bacteriological samples to preserve bacteria's such as coliforms, and e-coli.
What is sodium thiosulfate?
An operator must notify supervision if any 5 minute recording for CFE ntu's exceed______.
What is 1.0 ntu?
White solid ionic compound consisting of sodium cations and hydroxide anions
What is Sodium Hydroxide?
Water quality issue that requires immediate public notice because it has the potential to cause serious health effects if the water is consumed.
What is a tier 1 violation
Typical contact zone between rotating and stationary parts engineered to reduce damage to vital components of a pump.
What are wear rings?
Notification and additional sampling is required when chlorite levels exceed _________ at the epds/compliance sampling point
What is 1 PPM?
What ntu reading on an individual filter constitutes a supervisor warning?
What is .3 NTU?
Inorganic chemical compound of nitrogen and hydrogen.
What is ammonia.
The highest legal levels of contaminants allowed in drinking water.
What is a maximum contaminant level
Regular and routine maintenance of equipment and assets in order to prevent any unexpected equipment failure.
What is preventative maintenance?
These three check standards are used for a pH meter?
What are 4.0, 7.0 and 10.0?
An operator must physically verify the local display on what piece of compliance equipment at least twice a shift?
What is the individual filter turbidimeter?
Often used to remove excess chlorine after disinfection.
What is sodium bisulfate?
When operating one of the City of Phoenix's grade 4 water treatment plants, whose license are you operating under?
Who is Nikhil Parakeh?
Pump issues due to an unbalanced load, misalignment, or worn-out bearings.
What is vibration?
A technique where a solution of known concentration is used to determine the concentration of an unknown solution.
What is a titration?
Calibration equipment used to verify that the correct amount of liquid is being dosed to the process.
What is a calibration column?
Comprised of 2 oxygen atom and 2 hydrogen atoms.
What is hydrogen peroxide?
Which of the City of Phoenix's 7 instruction letters outlines the disinfection of treatment plants and reservoirs?
What is instruction letter 6?
A motor correction typically achieved by swapping two leads.
What is reversing rotation?
What percentage of CFE 4 hour measurements within one month must be less than or equal to .3 NTU
What is 95 percent?
A device used when a sample should be protected from light and uv rays.
Household name for sodium bicarbonate.
What is baking soda?