{
 "layers": [
  {
   "layerId": 19,
   "layerName": "Class AA Salmon Rivers",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "AA",
     "url": "448d0418e41f5039c63a75840e4a1708",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAMklEQVQ4jWNhoDJgGTVw1MDBZOBRhv//KTHImoGREcVAagG4gTAbqGYgtcCogaMGkgEA/gwDjlNv4OoAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "AA"
     ]
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": "1999"
    }
   ]
  },
  {
   "layerId": 18,
   "layerName": "Presumpscot River 1987-2009",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "AA",
     "url": "448d0418e41f5039c63a75840e4a1708",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAMklEQVQ4jWNhoDJgGTVw1MDBZOBRhv//KTHImoGREcVAagG4gTAbqGYgtcCogaMGkgEA/gwDjlNv4OoAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "AA"
     ]
    },
    {
     "label": "A",
     "url": "748511a202c8d41c1d884d72f0b07f28",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAMElEQVQ4jWNhoDJgGTVw1MBBZWDB//8UmTSBkRHVQCoBhIFQG6hnIJXAqIGjBpIBANZbA+Op+e6OAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "A"
     ]
    },
    {
     "label": "B",
     "url": "39861a8635e6ab0465bedd099a6fa97c",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAMklEQVQ4jWNhoDJgGTVw1MDBZKDPM4b/lBi0RYqBEcVAagG4gTAbqGYgtcCogaMGkgEAdTIEILQaFQYAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "B"
     ]
    },
    {
     "label": "C",
     "url": "11a2016104b8956c2abf289f7b3cbc98",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAMklEQVQ4jWNhoDJgGTVw1MDBZOD/VQz/KTGIMYyBEcVAagG4gTAbqGYgtcCogaMGkgEAQ/cDqbJm0XMAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "C"
     ]
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": "2009"
    }
   ]
  },
  {
   "layerId": 17,
   "layerName": "Presumpscot River 1964-1987",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "A",
     "url": "6fe8ea915de9fc54c26acbad1c103750",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAALklEQVQ4jWNhoDJgGTVw1MBBY2DB//9UMW0CIyONXDiBkZG6BlIRjBo4aiAZAADgEwPj5xNRKAAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "A"
     ]
    },
    {
     "label": "B-1",
     "url": "b8048322ad0863b33b6d57d4b2054861",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAMUlEQVQ4jWNhoDJgGTVw1MDBYqDPM4b/1DBsixQDI21cuEWKgZGqBlITjBo4aiAZAAB99gQgdTCFIwAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "B-1"
     ]
    },
    {
     "label": "B-2",
     "url": "5ad3f99d7020f37ff2d33a149ecbf02c",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAMUlEQVQ4jWNhoDJgGTVw1MDBYuD/VQz/qWEYYxgDI21cyBjGwEhVA6kJRg0cNZAMAABOlwOppN0TLQAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "B-2"
     ]
    },
    {
     "label": "C",
     "url": "b72283015e96431388067bd5a9fd4e24",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAMElEQVQ4je3OwQkAAAjDwBTcf2XdQSr4aAY4UpirgAG/gA3twAS6ORTICjoLGHDRAP6aAlMCeMVxAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "C"
     ]
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": "Class_1979"
    }
   ]
  },
  {
   "layerId": 15,
   "layerName": "Sebasticook River 1987-2009",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "AA",
     "url": "448d0418e41f5039c63a75840e4a1708",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAMklEQVQ4jWNhoDJgGTVw1MDBZOBRhv//KTHImoGREcVAagG4gTAbqGYgtcCogaMGkgEA/gwDjlNv4OoAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "AA"
     ]
    },
    {
     "label": "A",
     "url": "748511a202c8d41c1d884d72f0b07f28",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAMElEQVQ4jWNhoDJgGTVw1MBBZWDB//8UmTSBkRHVQCoBhIFQG6hnIJXAqIGjBpIBANZbA+Op+e6OAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "A"
     ]
    },
    {
     "label": "B",
     "url": "39861a8635e6ab0465bedd099a6fa97c",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAMklEQVQ4jWNhoDJgGTVw1MDBZKDPM4b/lBi0RYqBEcVAagG4gTAbqGYgtcCogaMGkgEAdTIEILQaFQYAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "B"
     ]
    },
    {
     "label": "C",
     "url": "11a2016104b8956c2abf289f7b3cbc98",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAMklEQVQ4jWNhoDJgGTVw1MDBZOD/VQz/KTGIMYyBEcVAagG4gTAbqGYgtcCogaMGkgEAQ/cDqbJm0XMAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "C"
     ]
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": "2009"
    }
   ]
  },
  {
   "layerId": 14,
   "layerName": "Sebasticook River 1964-1987",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "A",
     "url": "6fe8ea915de9fc54c26acbad1c103750",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAALklEQVQ4jWNhoDJgGTVw1MBBY2DB//9UMW0CIyONXDiBkZG6BlIRjBo4aiAZAADgEwPj5xNRKAAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "A"
     ]
    },
    {
     "label": "B-1",
     "url": "b8048322ad0863b33b6d57d4b2054861",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAMUlEQVQ4jWNhoDJgGTVw1MDBYqDPM4b/1DBsixQDI21cuEWKgZGqBlITjBo4aiAZAAB99gQgdTCFIwAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "B-1"
     ]
    },
    {
     "label": "B-2",
     "url": "5ad3f99d7020f37ff2d33a149ecbf02c",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAMUlEQVQ4jWNhoDJgGTVw1MDBYuD/VQz/qWEYYxgDI21cyBjGwEhVA6kJRg0cNZAMAABOlwOppN0TLQAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "B-2"
     ]
    },
    {
     "label": "C",
     "url": "b72283015e96431388067bd5a9fd4e24",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAMElEQVQ4je3OwQkAAAjDwBTcf2XdQSr4aAY4UpirgAG/gA3twAS6ORTICjoLGHDRAP6aAlMCeMVxAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "C"
     ]
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": "Class_1979"
    }
   ]
  },
  {
   "layerId": 12,
   "layerName": "Prestile Stream 1987-2009",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "AA",
     "url": "448d0418e41f5039c63a75840e4a1708",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAMklEQVQ4jWNhoDJgGTVw1MDBZOBRhv//KTHImoGREcVAagG4gTAbqGYgtcCogaMGkgEA/gwDjlNv4OoAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "AA"
     ]
    },
    {
     "label": "A",
     "url": "748511a202c8d41c1d884d72f0b07f28",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAMElEQVQ4jWNhoDJgGTVw1MBBZWDB//8UmTSBkRHVQCoBhIFQG6hnIJXAqIGjBpIBANZbA+Op+e6OAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "A"
     ]
    },
    {
     "label": "B",
     "url": "39861a8635e6ab0465bedd099a6fa97c",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAMklEQVQ4jWNhoDJgGTVw1MDBZKDPM4b/lBi0RYqBEcVAagG4gTAbqGYgtcCogaMGkgEAdTIEILQaFQYAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "B"
     ]
    },
    {
     "label": "C",
     "url": "11a2016104b8956c2abf289f7b3cbc98",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAMklEQVQ4jWNhoDJgGTVw1MDBZOD/VQz/KTGIMYyBEcVAagG4gTAbqGYgtcCogaMGkgEAQ/cDqbJm0XMAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "C"
     ]
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": "2009"
    }
   ]
  },
  {
   "layerId": 11,
   "layerName": "Prestile Stream 1964-1987",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "A",
     "url": "6fe8ea915de9fc54c26acbad1c103750",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAALklEQVQ4jWNhoDJgGTVw1MBBY2DB//9UMW0CIyONXDiBkZG6BlIRjBo4aiAZAADgEwPj5xNRKAAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "A"
     ]
    },
    {
     "label": "B-1",
     "url": "b8048322ad0863b33b6d57d4b2054861",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAMUlEQVQ4jWNhoDJgGTVw1MDBYqDPM4b/1DBsixQDI21cuEWKgZGqBlITjBo4aiAZAAB99gQgdTCFIwAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "B-1"
     ]
    },
    {
     "label": "B-2",
     "url": "5ad3f99d7020f37ff2d33a149ecbf02c",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAMUlEQVQ4jWNhoDJgGTVw1MDBYuD/VQz/qWEYYxgDI21cyBjGwEhVA6kJRg0cNZAMAABOlwOppN0TLQAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "B-2"
     ]
    },
    {
     "label": "C",
     "url": "b72283015e96431388067bd5a9fd4e24",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAMElEQVQ4je3OwQkAAAjDwBTcf2XdQSr4aAY4UpirgAG/gA3twAS6ORTICjoLGHDRAP6aAlMCeMVxAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "C"
     ]
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": "Class_1979"
    }
   ]
  },
  {
   "layerId": 9,
   "layerName": "Kennebec River 1987-2009",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "AA",
     "url": "448d0418e41f5039c63a75840e4a1708",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAMklEQVQ4jWNhoDJgGTVw1MDBZOBRhv//KTHImoGREcVAagG4gTAbqGYgtcCogaMGkgEA/gwDjlNv4OoAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "AA"
     ]
    },
    {
     "label": "A",
     "url": "748511a202c8d41c1d884d72f0b07f28",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAMElEQVQ4jWNhoDJgGTVw1MBBZWDB//8UmTSBkRHVQCoBhIFQG6hnIJXAqIGjBpIBANZbA+Op+e6OAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "A"
     ]
    },
    {
     "label": "B",
     "url": "39861a8635e6ab0465bedd099a6fa97c",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAMklEQVQ4jWNhoDJgGTVw1MDBZKDPM4b/lBi0RYqBEcVAagG4gTAbqGYgtcCogaMGkgEAdTIEILQaFQYAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "B"
     ]
    },
    {
     "label": "C",
     "url": "11a2016104b8956c2abf289f7b3cbc98",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAMklEQVQ4jWNhoDJgGTVw1MDBZOD/VQz/KTGIMYyBEcVAagG4gTAbqGYgtcCogaMGkgEAQ/cDqbJm0XMAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "C"
     ]
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": "2009"
    }
   ]
  },
  {
   "layerId": 8,
   "layerName": "Kennebec River 1964-1987",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "A",
     "url": "6fe8ea915de9fc54c26acbad1c103750",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAALklEQVQ4jWNhoDJgGTVw1MBBY2DB//9UMW0CIyONXDiBkZG6BlIRjBo4aiAZAADgEwPj5xNRKAAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "A"
     ]
    },
    {
     "label": "B-1",
     "url": "b8048322ad0863b33b6d57d4b2054861",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAMUlEQVQ4jWNhoDJgGTVw1MDBYqDPM4b/1DBsixQDI21cuEWKgZGqBlITjBo4aiAZAAB99gQgdTCFIwAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "B-1"
     ]
    },
    {
     "label": "B-2",
     "url": "5ad3f99d7020f37ff2d33a149ecbf02c",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAMUlEQVQ4jWNhoDJgGTVw1MDBYuD/VQz/qWEYYxgDI21cyBjGwEhVA6kJRg0cNZAMAABOlwOppN0TLQAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "B-2"
     ]
    },
    {
     "label": "C",
     "url": "b72283015e96431388067bd5a9fd4e24",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAMElEQVQ4je3OwQkAAAjDwBTcf2XdQSr4aAY4UpirgAG/gA3twAS6ORTICjoLGHDRAP6aAlMCeMVxAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "C"
     ]
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": "Class_1979"
    }
   ]
  },
  {
   "layerId": 6,
   "layerName": "Penobscot River 1987-2009",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "AA",
     "url": "448d0418e41f5039c63a75840e4a1708",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAMklEQVQ4jWNhoDJgGTVw1MDBZOBRhv//KTHImoGREcVAagG4gTAbqGYgtcCogaMGkgEA/gwDjlNv4OoAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "AA"
     ]
    },
    {
     "label": "A",
     "url": "748511a202c8d41c1d884d72f0b07f28",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAMElEQVQ4jWNhoDJgGTVw1MBBZWDB//8UmTSBkRHVQCoBhIFQG6hnIJXAqIGjBpIBANZbA+Op+e6OAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "A"
     ]
    },
    {
     "label": "B",
     "url": "39861a8635e6ab0465bedd099a6fa97c",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAMklEQVQ4jWNhoDJgGTVw1MDBZKDPM4b/lBi0RYqBEcVAagG4gTAbqGYgtcCogaMGkgEAdTIEILQaFQYAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "B"
     ]
    },
    {
     "label": "C",
     "url": "11a2016104b8956c2abf289f7b3cbc98",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAMklEQVQ4jWNhoDJgGTVw1MDBZOD/VQz/KTGIMYyBEcVAagG4gTAbqGYgtcCogaMGkgEAQ/cDqbJm0XMAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "C"
     ]
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": "2009"
    }
   ]
  },
  {
   "layerId": 5,
   "layerName": "Penobscot River 1964-1987",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "A",
     "url": "6fe8ea915de9fc54c26acbad1c103750",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAALklEQVQ4jWNhoDJgGTVw1MBBY2DB//9UMW0CIyONXDiBkZG6BlIRjBo4aiAZAADgEwPj5xNRKAAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "A"
     ]
    },
    {
     "label": "B-1",
     "url": "b8048322ad0863b33b6d57d4b2054861",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAMUlEQVQ4jWNhoDJgGTVw1MDBYqDPM4b/1DBsixQDI21cuEWKgZGqBlITjBo4aiAZAAB99gQgdTCFIwAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "B-1"
     ]
    },
    {
     "label": "B-2",
     "url": "5ad3f99d7020f37ff2d33a149ecbf02c",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAMUlEQVQ4jWNhoDJgGTVw1MDBYuD/VQz/qWEYYxgDI21cyBjGwEhVA6kJRg0cNZAMAABOlwOppN0TLQAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "B-2"
     ]
    },
    {
     "label": "C",
     "url": "b72283015e96431388067bd5a9fd4e24",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAMElEQVQ4je3OwQkAAAjDwBTcf2XdQSr4aAY4UpirgAG/gA3twAS6ORTICjoLGHDRAP6aAlMCeMVxAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "C"
     ]
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": "Class_1979"
    }
   ]
  },
  {
   "layerId": 3,
   "layerName": "Androscoggin River 1987-2009",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "AA",
     "url": "448d0418e41f5039c63a75840e4a1708",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAMklEQVQ4jWNhoDJgGTVw1MDBZOBRhv//KTHImoGREcVAagG4gTAbqGYgtcCogaMGkgEA/gwDjlNv4OoAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "AA"
     ]
    },
    {
     "label": "A",
     "url": "748511a202c8d41c1d884d72f0b07f28",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAMElEQVQ4jWNhoDJgGTVw1MBBZWDB//8UmTSBkRHVQCoBhIFQG6hnIJXAqIGjBpIBANZbA+Op+e6OAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "A"
     ]
    },
    {
     "label": "B",
     "url": "39861a8635e6ab0465bedd099a6fa97c",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAMklEQVQ4jWNhoDJgGTVw1MDBZKDPM4b/lBi0RYqBEcVAagG4gTAbqGYgtcCogaMGkgEAdTIEILQaFQYAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "B"
     ]
    },
    {
     "label": "C",
     "url": "11a2016104b8956c2abf289f7b3cbc98",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAMklEQVQ4jWNhoDJgGTVw1MDBZOD/VQz/KTGIMYyBEcVAagG4gTAbqGYgtcCogaMGkgEAQ/cDqbJm0XMAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "C"
     ]
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": "2009"
    }
   ]
  },
  {
   "layerId": 2,
   "layerName": "Androscoggin River 1964-1987",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "A",
     "url": "6fe8ea915de9fc54c26acbad1c103750",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAALklEQVQ4jWNhoDJgGTVw1MBBY2DB//9UMW0CIyONXDiBkZG6BlIRjBo4aiAZAADgEwPj5xNRKAAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "A"
     ]
    },
    {
     "label": "B-1",
     "url": "b8048322ad0863b33b6d57d4b2054861",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAMUlEQVQ4jWNhoDJgGTVw1MDBYqDPM4b/1DBsixQDI21cuEWKgZGqBlITjBo4aiAZAAB99gQgdTCFIwAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "B-1"
     ]
    },
    {
     "label": "B-2",
     "url": "5ad3f99d7020f37ff2d33a149ecbf02c",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAMUlEQVQ4jWNhoDJgGTVw1MDBYuD/VQz/qWEYYxgDI21cyBjGwEhVA6kJRg0cNZAMAABOlwOppN0TLQAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "B-2"
     ]
    },
    {
     "label": "C",
     "url": "b72283015e96431388067bd5a9fd4e24",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAMElEQVQ4je3OwQkAAAjDwBTcf2XdQSr4aAY4UpirgAG/gA3twAS6ORTICjoLGHDRAP6aAlMCeMVxAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "C"
     ]
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": "Class_1979"
    }
   ]
  }
 ]
}