The Yakama Tribal Gaming Corporation dba Yakama Nation�s Legends Casino is a part of the Yakama Nation. The Yakama Nation is a federally recognized Indian tribe. The Yakama casino operates a waste water treatment plant located in Toppenish, Washington. The plant has been discharging waste water without authorization under an NPDES permit. An NPDES permit application has been received by EPA. The order requires the Yakama Tribal Gaming Corporation to monitoring the discharges and to submit the analytical results.