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  "layers" : [
    {
      "layerId" : 0, 
      "layerName" : "Coatzacoalcos (2000 al 20011)", 
      "layerType" : "Feature Layer", 
      "minScale" : 0, 
      "maxScale" : 0, 
      "legend" : [
        {
          "label" : "Excelente (CF \u003c= 100)", 
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        {
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        {
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        {
          "label" : "Contaminada (1000 \u003c CF \u003c= 10000)", 
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        }, 
        {
          "label" : "Fuertemente contaminada (CF \u003e 10000", 
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          "contentType" : "image/png"
        }
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