Arkansas Attorney General Dustin McDaniel says a limit on phosphorus concentrations in the Illinois River in Oklahoma was "unfairly calculated" when it was set a year ago.
So, McDaniel said Wednesday that Arkansas entities will pay for a new $600,000 study to work out a more scientific and reasonable limit.
The Illinois is designated a scenic river in Oklahoma, but officials there say runoff from poultry operations in Arkansas has harmed the water quality in the river, which begins in Arkansas and flows into Oklahoma.
The Arkansas Democrat-Gazette reports the issue has been discussed for about 30 years and has dragged out in costly court battles.
McDaniel said last month that he and Oklahoma Attorney General Scott Pruitt had reached a binding agreement to conduct a new study.
