Ground Water Flashcards
What is the pH range of ground water?
6.5 to 8.5
How long can ground water remain underground?
Thousands of years
What factors influence the composition of ground water?
The rock or sand it’s made up of
What determines water hardness?
The level of calcium (Ca2+) and magnesium (Mg2+) compounds
What does a high level of calcium and magnesium in water indicate?
The water is ‘hard’
What is the ideal water composition for brewing?
Varies by beer style
Which city has the highest calcium content in its water according to the table?
Burton
Fill in the blank: A brewery could utilise both surface and ______ water.
ground
What is required for water to meet potable water requirements?
Some form of treatment
True or False: Most brewers have access to their own springs or boreholes.
False
Which city has the lowest total dissolved solids in its water?
Melbourne
What are the primary sources of water for breweries?
Local water supplier or municipality
List the minerals typically measured in water quality for brewing.
- Sodium
- Magnesium
- Calcium
- Chloride
- Sulphate
- Carbonate
- Nitrate
What is the significance of water hardness in brewing?
It affects the suitability for brewing particular beer styles
What is the range of sodium content in water from Burton?
30 mg/L
What is the magnesium content in water from London?
4 mg/L
Fill in the blank: The water composition can vary based on the ______ and geology of the area.
topography
Which city has the highest sulphate content in its water?
Burton
