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WATER USE &
MANAGEMENT IN
CALIFORNIA
BY CHRIS BRADLEY
WHERE IS WATER USED?
 California’s water use is divided into three categories: Urban,
Agricultural & Environmental.
 10% of California’s water is used in the Urban sector in homes,
commercial & institutional buildings, businesses, electricity generation
& landscaping.
 40% is used in the Agricultural sector.
 50% goes to the Environment.
HOW MUCH WATER IS USED?
Total urban water use in CA is about 9.5 million Acre-feet per year.
1 Acre-foot = about 325,851 gallons.
So, California’s urban water use alone is over 3 Trillion (3,000,000,000,000)
gallons per year!
About 12 trillion gallons of water is used a year in agriculture to irrigate
more than 9 million acres of land and raise livestock.
The rest of the state’s water is left to the environment.
WHAT IS THE PROBLEM?
 The problem is that California is not making wise or efficient use of its
water supply.
 There is an enormous amount of water being used in a state which
typically has dry conditions, is prone to drought and is currently in one.
 This misuse of water is a reflection of mismanagement of California’s
water supply that dates back to the early 1900’s.
OWEN’S DRY LAKE
 In 1913 the rivers & streams that fed
the lake were diverted into Los Angeles
 The water that’s left is mandated in
order to mitigate dust storms that
occur as a result of the exposed lake
bed due to all the lake’s water loss
 These stormed have forced full nearby
towns to relocate for numerous health
reasons.
IMPACT OF OWEN’S LAKE MISMANAGEMENT
 These dust storms contain particulates
& carcinogens such as arsenic,
cadmium, sulfur, chlorine and many
others.
 Irresponsible use of water can have a
harsh impact on air quality as well.
PROBLEMS WITH URBAN WATER USE
 Many households use water inefficiently in their toilets, faucets, showerheads, dishwashers,
water hoses, & washing machines.
 Institutional, commercial and industrial buildings have similar inefficient water use to
households.
 Businesses that use excessive amounts of water & contaminate water are either weakly or
completely unregulated.
 Irrigation systems for the many acres of landscape in California are largely in efficient.
SOLUTIONS TO URBAN WATER PROBLEMS
 To reduce and make efficient use of water in the household, vouchers to purchase more
efficient items such as toilets, faucets, etc. could be provided from tax dollars.
 To reduce the amount of water used in landscaping, we can reduce the amount of grass &
other plants planted for aesthetic purposes & replace them with items such as rocks,
woodchips or plants that require less water.
 More efficient watering systems should be used on landscaping as well.
 Water-using businesses should be heavily monitored and regulated.
 Business activities that contaminate water should be banned altogether.
PROBLEMS WITH AGRICULTURAL WATER USE
 Many crops that require an excessive
amount of water are grown, such as
almonds.
 Livestock, such as cattle, are raised that
also require very large amounts of
water.
 Inefficient irrigation systems are used
on farmland.
SOLUTIONS TO AGRICULTURAL WATER USE
 Water conserving changes can be
made in the agricultural sector by
mandating more efficient irrigation
systems such as drip and trickle
watering systems.
 Reducing the amount of crops and
livestock that require excessive
amounts of water to grow & raise.
MORE WAYS TO HELP BETTER WATER USE
 Inform and encourage more efficient water use.
 Provide incentives to those to who do.
 Strict implementation and punishment for
violators.
 Use of recycled water in safe & appropriate
places.
 Collect & use storm water.
 Desalinization plants that run on renewable
energy to store water in case of shortage.

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Water Use & Management in California

  • 1. WATER USE & MANAGEMENT IN CALIFORNIA BY CHRIS BRADLEY
  • 2. WHERE IS WATER USED?  California’s water use is divided into three categories: Urban, Agricultural & Environmental.  10% of California’s water is used in the Urban sector in homes, commercial & institutional buildings, businesses, electricity generation & landscaping.  40% is used in the Agricultural sector.  50% goes to the Environment.
  • 3. HOW MUCH WATER IS USED? Total urban water use in CA is about 9.5 million Acre-feet per year. 1 Acre-foot = about 325,851 gallons. So, California’s urban water use alone is over 3 Trillion (3,000,000,000,000) gallons per year! About 12 trillion gallons of water is used a year in agriculture to irrigate more than 9 million acres of land and raise livestock. The rest of the state’s water is left to the environment.
  • 4. WHAT IS THE PROBLEM?  The problem is that California is not making wise or efficient use of its water supply.  There is an enormous amount of water being used in a state which typically has dry conditions, is prone to drought and is currently in one.  This misuse of water is a reflection of mismanagement of California’s water supply that dates back to the early 1900’s.
  • 5. OWEN’S DRY LAKE  In 1913 the rivers & streams that fed the lake were diverted into Los Angeles  The water that’s left is mandated in order to mitigate dust storms that occur as a result of the exposed lake bed due to all the lake’s water loss  These stormed have forced full nearby towns to relocate for numerous health reasons.
  • 6. IMPACT OF OWEN’S LAKE MISMANAGEMENT  These dust storms contain particulates & carcinogens such as arsenic, cadmium, sulfur, chlorine and many others.  Irresponsible use of water can have a harsh impact on air quality as well.
  • 7. PROBLEMS WITH URBAN WATER USE  Many households use water inefficiently in their toilets, faucets, showerheads, dishwashers, water hoses, & washing machines.  Institutional, commercial and industrial buildings have similar inefficient water use to households.  Businesses that use excessive amounts of water & contaminate water are either weakly or completely unregulated.  Irrigation systems for the many acres of landscape in California are largely in efficient.
  • 8. SOLUTIONS TO URBAN WATER PROBLEMS  To reduce and make efficient use of water in the household, vouchers to purchase more efficient items such as toilets, faucets, etc. could be provided from tax dollars.  To reduce the amount of water used in landscaping, we can reduce the amount of grass & other plants planted for aesthetic purposes & replace them with items such as rocks, woodchips or plants that require less water.  More efficient watering systems should be used on landscaping as well.  Water-using businesses should be heavily monitored and regulated.  Business activities that contaminate water should be banned altogether.
  • 9. PROBLEMS WITH AGRICULTURAL WATER USE  Many crops that require an excessive amount of water are grown, such as almonds.  Livestock, such as cattle, are raised that also require very large amounts of water.  Inefficient irrigation systems are used on farmland.
  • 10. SOLUTIONS TO AGRICULTURAL WATER USE  Water conserving changes can be made in the agricultural sector by mandating more efficient irrigation systems such as drip and trickle watering systems.  Reducing the amount of crops and livestock that require excessive amounts of water to grow & raise.
  • 11. MORE WAYS TO HELP BETTER WATER USE  Inform and encourage more efficient water use.  Provide incentives to those to who do.  Strict implementation and punishment for violators.  Use of recycled water in safe & appropriate places.  Collect & use storm water.  Desalinization plants that run on renewable energy to store water in case of shortage.