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under the 1968 wild and scenic rivers Act. P.J
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US government passes the clean water act. P.J
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environmental protections agency permits Fayetteville, Arkansas, to dump treated waste water into a tributary of the Illinois river; Oklahoma sues. DM
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U.S Supreme Court rules Arkansas may dump treated sewage into the Illinois River watershed, but that it must meet Oklahoma water quality standards. -MC
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Oklahoma begins gathering data on phosphorous and other pollutants in the Illinois river. DM
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The report details high levels of contaminates in lake Tenkiller P.J
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Arkansas and Oklahoma agree to work together to reduce pollution in the Illinois River watershed. - MC
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Poultry companies submit plan to reduce chicken litter application in Oklahoma rover watersheds. Oklahoma Attorney General Drew Edmondson calls plan "lacking." - MC
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Edmondson files a federal lawsuit against 14 poultry companies, accusing them of polluting the Illinois River watershed with chicken litter. - MC
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state seeks preliminary injunction banning the use of poultry litter in the Illinois river watershed. Y.M
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Judge rejects state's request for a preliminary injunction to prevent the land application of poultry waste. P.J
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Poultry industry seeks to have case dismissed because Cherokee Nation has water rights in the watershed. DM
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Judge rules that state can't seek million in damages because it failed to properly include the Cherokee Nation, which claims water rights in the watershed. - MC
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Federal trial begins in Judge Gregory Frizzell's courtroom. - MC
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After more than 5 years no decision has been rendered. Y.M
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Oklahoma and Arkansas announce joint three year study of water quality in the Illinois river watershed. P.J
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U.S. Environmental Protection Agency makes available for comment a proposed Illinois River Watershed Modeling Program. DM
