D’ARBONNE WATER IS IMMENSE

Posted: July 7, 2013 in Uncategorized
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Let’s take a quick look at a subject close to home, the use of Lake D’Arbonne as a water supply for Union and Lincoln Parish.  I’m not trying to take a stand on this subject but instead would like to present facts that may help to clarify the immense volume of water that our precious resource holds.
1. One inch of water covering one acre is 27,154 gallons.

  • Lake D’Arbonne has 15,280 acres
    2. One inch of water covering the entire lake is 415 million gallons of water.
    3. Union Parish had 22,419 citizens and Lincoln Parish had 46,952 citizens for a combined total of 69,372 people.  (2010 Census)
    4. The U.S. Geologic Survey states that the average American uses 70 gallons of water per day.
    5. Total uses of water for the residents of Lincoln and Union Parish is 4,856,040 gallons per day.
    6. This means that it will take 85 days of no water entering the lake to lower the level by 1”.  Considering the springs that feed the lake and the occasional rain even in the worst drought conditions, some water will be coming into the lake.
    7. When it rains it pours, at least in our beautiful lake.  The lake is approximately 24 square miles in size.  

    A water shed is the total size of the area that drains into the lake.  D’Arbonne has a gigantic watershed of 1,920 square miles. A small rain brings a large amount of water into our lake.

  • The future of population growth and added requirements for water do not reflect major increases based on the current census. Lincoln Parish grew by .5 % between 2010 and 2012 while Union Parish decreased by 1.3 %. The trend is for low to no growth so increased water requirements are very small or non-existent.
  • During our rain months the water going over the spill way far surpasses the quantity of water required by Lincoln and Union Parish.
  • To borrow a phrase from a TV show from a generation ago, “The facts and only the facts.”  You decide if the use of Lake D’Arbonne for drinking water will jeopardize the use of the lake as a recreational resource.
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