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1. MN Rules Chapter 4725 regulates all of the following EXCEPT—
   
   a. vertical heat exchangers b. water appropriations c. water supply wells d. dewatering wells
    

2. A license or registration is always required for each of the following EXCEPT:
   
   a. To operate a well; b. To modify a well; c. To seal (abandon) a well; d. To construct a well
    

3. All regulation of community public water supplies is handled exclusively by the MDH while other types
   of wells may be regulated by delegated authorities.
   
   a. True b. False
   
    

4. All of the following statements regarding well casing is correct EXCEPT:
   
   a. The casings for wells must be at least 12 inches above the ground surface or the floor of a well house. b. Casings must be marked by the manufacturer. c. Temporary casing, removed upon completion of the well, must still meet the same requirements as permanent casing. c. A minimum of 2 inch inside casing diameter is required for wells and borings that are 50 feet deep and greater.
    

5. Which of the following materials is commonly used for well casing construction?
   
   a. lead b. bentonite c. steel d. copper
    

6. All of the following are conditions where grouting is required for wells and borings EXCEPT:
   
   a. A casing installed more than 10 feet into rock; c. The top 30 feet of wells or borings constructed with a method that creates an annular space; b. Inside the annular space between casing; d. A bore hole drilled more than 6 inches or more below a screen.
   
   
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