California: Can We Save Our Water?

By Noa, Jack, VanAnh, and Prithvi

Water Usage by Jack Spector

  • Water is a finite resource—even though about 70 percent of the Earth's surface is covered by water, less than 1 percent is available for human use.

  • Forty out of 50 state water managers expect water shortages under average conditions in some portion of their states over the next decade.

  • Each American uses an average of 100 gallons of water a day at home.

  • We can all use 30 percent less water by installing water-efficient fixtures and appliances.

  • The average household spends as much as $500 per year on their water and sewer bill and can save about $170 per year by installing water-efficient fixtures and appliances.

  • A leaky faucet can waste 100 gallons a day. An average bath requires 37 gallons of water. Take short showers instead of baths.

  • A full bathtub requires about 36 gallons of water.
  • Each person needs to drink about 2 ½ quarts (80 ounces) of water every day.

Water Distribution by Noa David

  • Freshwater is naturally occurring water on the Earth's surface in ice sheets, ice caps, glaciers, icebergs, bogs, ponds, lakes, rivers, and streams

  • Scientifically, freshwater habitats divided into lentic systems.

  • The source of almost all freshwater is precipitation from the atmosphere, in the form of mist.

  • The water distribution on Earth shows that most water in the Earth's atmosphere and crust comes from the world's oceans.

  • The oceanic crust is young, thin, and dense, with none of the rocks within it.

Big image

Water Conservation by Prithvi Raj

Methods for Preventing Water Usage in Companies by VanAnh Nguyen

  • EPA facilities have been upgrading their toilets and urinals with less gallons of water per flush (gpf); such as toilets= 1.6 gpf, urinals= 1.0 gpf or lower, etc.

  • Eliminate single-pass cooling: a process that circulates water once throughout a building for cooling purposes.

  • Xeriscaping is a new irrigation system used by planting water-efficient plants and obtaining techniques to decrease the amount of water used for irrigation.

  • Reverse osmosis: a process of generating deionized water that can be used purposefully; related to desalination.

  • Collecting rooftop rainwater, then using it for various purposes.

  • The process of air conditioning gives off condensated water from the cooling coils.

  • Some EPA laboratories use water for aquatic culture research; a solution would be to are reuse this water instead of dumping it into sewers or getting rid of it into lakes/bays.

  • A technique called "metering, measuring, and managing" could be used. Basically, measures of water throughout a facility are analyzed and if necessary, management of water will be needed.

  • Decrease the use of cooling towers: many companies/large buildings use "cooling towers" as a way of maintaining an adequate temperature in the area. However, these machines are large consumers of water.

  • Find ways for water-efficient irrigation. (such as manual irrigation, drip-irrigation, etc.)

  • Manage storm water by slowing down runoff- let rain soak into lawns, rain collectors, etc.

VanAnh's Sources for Research (below)