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US Geological Survey 2306 US Geological Survey 236 Seismological Societ 49
Environmental Monito 20 Science 7 WEF Stormwater Repor 7
EurekAlert 6 us environmental pro 5 Scripps Institution 4
US National Scientif 4 World Resources Inst 4 Cary Institute of Ec 3
Environmental Protec 3 National Centers for 3 The Center for Syste 3
Woods Hole Oceanogra 3 Bureau of Ocean Ener 2 Monterey Bay Aquariu 2
US Environmental Pro 2 Water Environment Fe 2