biology
What organization are positive coliform tests submitted to in the state
what is MDH
what is the term for a water source that is protected by a layer of rock above it
what is a confined aquifer
The element is commonly added to drinking water to help prevent tooth decay
What is fluoride?
What PPE must always be worn when handling chemicals
What are gloves and eye protection?
What are the two most common types of elevated storage?
what are Standpipes and water towers
How many coliform is to many
what is 1
What is one of the drilling methods used when constructing a well
what is mud rotary, air percussion, air rotary, jetting, augerIng and cable tool
This chemical is a common disinfectant used to kill micro organisms, and water treatment plants
What is chlorine?
What state organization administrates workplace safety
MNOSHA
What town does Gregg mainly talk about in class for his work experience's
Where is Brainerd
what are the 4 main types of algae
what is blue-green, green, diatom. pigmented flagellates
what is the term for the water level of an aquifer when the pump is an operation?
What is Dynamic water level
What are the MCL levels for iron and manganese?
what is
Fe=0.3mg/L
Mn=0.05mg/L
What is the confined space safety rule for entry?
What is a attendee, meters and ventilation?
What are the three stages of a backwash processes?
what is Backwash, filter to waste, and filter
What color does colisure turn when coliform is present
what is Red
What government agency must be contacted to allow you to drill a well in the state of Minnesota
what is United States geological service
What possible chemicals could be found in a treatment plant for adjusting pH levels?
What is lime, aluminum sulfate, ferric chloride, sulfuric acid phosphoric acid nitric acid
What conditions must be meant to require hearing protection on the job site?
what is a 8 hour work time with a average of 85 dBA
What's the main valve used in the cities?
What is a gate valve/plug valve
Name two diseases caused by coliform contamination
what are dysentery, gastroenteritis, cholera, typhoid, salmonella, legionnaire, hepatitis
what is the minimum isolation distance from contamination sources?
what is 50 ft
The "Blue Baby" syndrome can be caused by the contamination of drinking water with this inorganic compound?
What are nitrates?
What's the minimum depth of a trench before requiring a professional registered engineer to design the protective system?
What is 20 feet
What psi levels should be expected in a distribution system
What is 40 to 60 psi