A look at the Little Rock city code turns up this: “It shall be unlawful for any person to swim in the Arkansas River within the boundaries of city parks.”Click to see full answer. People also ask, can you swim in the Arkansas River?It’s been decades since Tulsa officials decided the portion of the Arkansas River that runs through the city was too dirty and dangerous to swim in. The river is much cleaner now, but convincing the public it’s safe for swimming won’t be easy.One may also ask, can you swim in the White River Arkansas? White River Located in the beautiful Ozark National Forest of northwest Arkansas, this river runs through Arkansas into Missouri and boasts a great swimming hole to cool off on a hot day. Besides, what is the cleanest lake in Arkansas? Lake Ouachita How dirty is the Arkansas River?Description: The Arkansas River is contaminated with sediment and other pollutants, mainly due to stormwater runoff. The presence of bacterial contamination (e.g. E. coli) in the Arkansas River within the Wichita metropolitan area is a concern.