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     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "GALAVANIZED_UNSP"
     ]
    },
    {
     "label": "Galavanized Steel",
     "url": "fa14866c97835ff86d1a748e937edfcf",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAd0lEQVQ4jWNhoDJgobWBRmSacw6bgUYiDAKbtBmUeEkx6SrDvc9vGD74wQxFcSHIsEyGID5SDJzOsI7hIMKBtA9DigEL5UagglEDKQcsVDADBYx0A68y3PsMypukgKsM9z7jMvAcqNRAzugkAKzFF4oEuYDqYQgAOjcY/NaN240AAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "GALAVANIZED_STEEL"
     ]
    },
    {
     "label": "Galvanized Iron",
     "url": "8ab3939c19ea458051213d6656b913d1",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAd0lEQVQ4jWNhoDJgobWBRmSacw6bgUZcXFybREREeEkx6c2bN5+/ffvmBzMUxYUgwwwMDPhIMfDChQsMjx49ol8YUgxYKDcCFYwaSDlgoYIZKGCkG/jmzZvPoLxJCnjz5s1nXAaeA5UayBmdBIC1+EKRIBdQPQwBvRMibHtzoN8AAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "GALVANIZED_IRON"
     ]
    },
    {
     "label": "Lead",
     "url": "7db48cdb5dcbf8af88ad9af8063d14ca",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAdElEQVQ4jWNhoDJgobWBRmSacw6bgUYyDAybbBgYeEkx6QgDw+cnDAx+MENRXAgyrI+BgY8UA4sYGBhW0DMMKQYslBuBCkYNpBywUMEMFDDSDTzCwPAZlDdJAUcYGD7jMvAcqNRAzugkAKzFF4oEuYDqYQgAzEMQdH0Z7v8AAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "LEAD"
     ]
    },
    {
     "label": "Plastic, Unspecified",
     "url": "6fc754820f550c262a7a9ad468d1870a",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAdklEQVQ4jWNhoDJgobWBRmSacw6bgUbysgybHG0ZeEkxaf9hhs8PHzP4wQxFcSHIsPmTGPhIMTAxj4FhwTI6hiHFgIVyI1DBqIGUAxYqmIECRrqB+w8zfAblTVLA/sMMn3EZeA5UaiBndBIA1uILRYJcQPUwBACuixerVUV/+AAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "PLASTIC_UNSP"
     ]
    },
    {
     "label": "Plastic, Unspecified Polytubing",
     "url": "652d30f846f173ccca61124b663b54da",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAcklEQVQ4jWNhoDJgobWBRmSacw6bgUYMIgKbGLSVeEky6uq9zwxvPvjBDEV1IciwzCA+kgycvo6B4eA5+oUhxYCFciNQwaiBlAMWKpiBAka8gVfvfQbnTVLA1XufcYXhOXCpgZTRSQBYiy8UCXIB1WMZADJdGPxrPi1YAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "PLASTIC_UNSP_POLYTUBUING"
     ]
    },
    {
     "label": "Plastic, PVC (Polyvinyl Chloride)",
     "url": "a9221fe3918c1f5130ab967c17e16393",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAd0lEQVQ4jWNhoDJgobWBRmSacw6bgUby8vKbHB0deUkxaf/+/Z8fPnzoBzMUxYUgw+bPn89HioGJiYkMCxYsoF8YUgxYKDcCFYwaSDlgoYIZKGCkG7h///7PoLxJCti/f/9nXAaeA5UayBmdBIC1+EKRIBdQPQwBcj4ezURmOsEAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "PLASTIC_POLYVINYL_CHLORIDE"
     ]
    },
    {
     "label": "Plastic, Polybutylene",
     "url": "e8b0679481db3eefc2cc534caadca255",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAd0lEQVQ4jWNhoDJgobWBRmSacw6bgUaikjybdEykeUkx6cqZp59fP//iBzMUxYUgw7Ia7PlIMXBaw0GG/Ztv0i8MKQYslBuBCkYNpBywUMEMFDDSDbxy5ulnUN4kBVw58/QzLgPPgUoN5IxOAsBafKFIkAuoHoYAxxsgwoh0PvQAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "PLASTIC_POLYBUTALYN"
     ]
    },
    {
     "label": "Plastic, Polyethylene",
     "url": "1a728f036c896fe4b4bca65fddceaa1f",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAd0lEQVQ4jWNhoDJgobWBRmSacw6bgUY8/JKbpOVMeEkx6emjM5+/fHzuBzMUxYUgw+y9GvhIMfDgtgaGm5c30y8MKQYslBuBCkYNpBywUMEMFDDSDXz66MxnUN4kBTx9dOYzLgPPgUoN5IxOAsBafKFIkAuoHoYANFQhHmmzS1kAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "PLASTIC_POLYETHYLENE"
     ]
    },
    {
     "label": "Cannot Be Determined, Cannot Distinguish Material",
     "url": "e09db8e4b4274c4dac8154cc34ff59ec",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAd0lEQVQ4jWNhoDJgobWBRmSacw6bgUbCwsKbNDQ0eEkx6caNG5/fvn3rBzMUxYUgwxITE/lIMXD+/PkMR48epV8YUgxYKDcCFYwaSDlgoYIZKGCkG3jjxo3PoLxJCrhx48ZnXAaeA5UayBmdBIC1+EKRIBdQPQwB3Asg1BbsRVIAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "CBD_CANNOT_DISTINGUISH"
     ]
    },
    {
     "label": "Cannot Be Determined, Pipe Buried",
     "url": "59ac257ec781da9dfe8b678dfdf0efce",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAd0lEQVQ4jWNhoDJgobWBRmSacw6bgUaCnGyblEW4eEkx6e6bb5/ff//lBzMUxYUgw0J1pflIMXD15acMZx7/ol8YUgxYKDcCFYwaSDlgoYIZKGCkG3j3zbfPoLxJCrj75ttnXAaeA5UayBmdBIC1+EKRIBdQPQwBzcgiXo9eMucAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "CBD_BURIED"
     ]
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": ""
    }
   ]
  }
 ]
}