Corrosion
The rate of chemical corrosion reactions are increased when
what is as the temperature of water increases
Those responsible for the Cross Connection program
Who is the local Utility
what the abbreviation SDWA stands for
what is the Safe Drinking Water Act
The most common type of residential water meter
What is a displacement meter
The number of years chemical records are kept
What is not less than 10 years
This is the most common inhibitor used in water treatment for corrosion control
What are Phosphates
All low hazard, testable backflow assembllies shall be tested, EXCEPT for last irrigation systems, at least ________
What is every three years
The year the SDWA was made law in Michigan
What is 1976
The purpose of a water meter
What is to record the flow
The percentage of chlorine in calcium hypochlorite
What is 65% chlorine
Name one of the numerous signs of corrosion inside of pipes
What is : red/rust/yellowish colored water, iron/metallic taste, cloudy or gritty water, stained fixtures
The device that physically stops contaminated water from entering clean water systems
What is an Air gap
The year that the SDWA was created by the Federal government
What is 1974
The most common type of pump used in water
What is a centrifugal pump
The word for the distance around the outside of a cirlce
What is circumference
what the C factor represents
What is the internal smoothness of the pipe
Two cross connection devices besides an air gap
What are : an RPZ, Double check valve assembly, atmospheric vacuum breaker, Pressure vacuum breaker, hose bib vacuum breaker
The main purpose of the SDWA
What is to protect the public health by regulating the nation's public drinking water supply
The type of pump that shouldn't be operated against a closed discharge valve
What is a positive displacement pump
The amount of sample needed for a bacteriological test for drinking water
What is 100 mls
One of many methods used to prevent corrosion
What is: protective coatings, electrochemical (sacrifical anode/galvanic) (cathodic) protection, painting, choosing natural resistant materials (aluminum, copper, titanium)
The date that cross connection control reports are due to the State
What is March 31 of the year following the calendar year the report covers
The legally enforceable standards that limit harmful contaminants in public water systems
What are the Primary Drinking Water Standards
One of the purposes of a lantern ring
What is to lubricate/cool the pump and keep air or harmful fluids from entering the packing
The valve that is used to isolate grids in a water system and requires numerous turns to open it
What is a gate valve