LA gets blackballed (actually, it's just water) In this Monday, Aug. 10, 2015 photo provided by the Los Angeles Department of Water and Power, Los Angeles Mayor Eric Garcetti, in suit at center rear, and LADWP workers deposit the final batch of over 90 million "shade balls" into the Los Angeles Reservoir in the Sylmar area of Los Angeles. (Art Mochizuki/Los Angeles Department of Water and Power via AP)
LA gets blackballed (actually, it's just water)
Lexile

Los Angeles has been blackballed.
 
The city has completed a program of covering open-air reservoirs with floating "shade balls" to protect water quality.
 
City officials have dumped the last 20,000 of 96 million black balls into the Los Angeles Reservoir. It's located in Sylmar. That is 25 miles northwest of downtown.
 
The 4-inch-diameter plastic balls block sunlight from piercing the 175-acre surface of the reservoir.
 
That prevents chemical reactions. Those can cause algae blooms and other problems. And it allows the Department of Water and Power to meet U.S. Environmental Protection Agency water-quality requirements.
 
The balls have the added perk of aiding with the ravages of the drought. They are expected to keep about 300 million gallons annually from evaporating.
 
"In the midst of California's historic drought, it takes bold ingenuity to maximize my goals for water conservation," Mayor Eric Garcetti said in a statement. The effort is "emblematic of the kind of the creative thinking we need to meet those challenges."
 
Each of the balls costs 36 cents. The balls also will help prevent evaporation of 300 million gallons of water annually. The reservoir holds 3.3 billion gallons.
 
The city began using shade balls in 2008. They now also cover the Upper Stone, Elysian and Ivanhoe reservoirs.

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CRITICAL THINKING QUESTION
How do the black balls conserve water?
Write your answers in the comments section below


COMMENTS (21)
  • John0724-YYCA
    8/24/2015 - 09:53 p.m.

    I think that it is a good idea that they are using the black balls to conserve more water in Los Angeles because right now our drought is really serious and they are using the balls to help us. These black balls are a good way to conserve water because it blocks the sunlight so it prevents evaporation.

  • hamiltonb-nar
    8/27/2015 - 08:25 a.m.

    That is very smart to put the balls on the water to protect it from the bad things that could happen to it.

  • gabrielb-nar
    8/27/2015 - 10:39 a.m.

    Wow this is very interesting how they stop evaporation with balls.

  • daniels-nar
    8/27/2015 - 01:39 p.m.

    Black balls conserve water by stopping water from evaporating which keeps water in the resevoir

  • Eric0221-YYCA
    9/01/2015 - 12:30 a.m.

    I think that it is cool for People who work at Water and Power Departments to start using black-shade balls which help the Los Angeles reservoirs because it blocks off other algae blooms to grow in the Los Angeles reservoirs. The black-shade balls also shades the whole reservoir from letting the water evaporate losing a lot of our water from evaporation.
    Critical Thinking Question: How do the black balls conserve water?
    Answer: The black balls conserve the water by blocking off other types of Algae bloom to grow in the water also the black balls shade the waters which helps the water to not get evaporated into the air.

  • coopere-nar
    9/01/2015 - 02:33 p.m.

    very interesting

  • Jason0421-YYCA
    9/10/2015 - 09:26 p.m.

    I think that it is interesting for Los Angeles to be blackballed. I didn't know what was blackballed until today. I think that using shade balls is a very smart idea for the ocean because the shade balls will protect the quality of the ocean water.

  • derekm-
    9/11/2015 - 09:05 a.m.

    how do scientists keep coming up with amazing ways to conserve our planet and its resources? Its really amazing.

  • saiv-win
    9/16/2015 - 05:34 p.m.

    I had a little trouble with the last question

  • jasminec-6-bar
    9/17/2015 - 11:48 p.m.

    The black balls conserve water by preventing too much water evaporation from occurring and is expected to save 300 million of the 3.3 billion gallons in the reservoir. I think that the idea that Los Angeles has come up with is ingenious and am a bit surprised that no person, at least to my knowledge has done this before.

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