Please Note When Checking OutZeffy automatically includes an optional donation to help keep their service free. This donation is not required.If you do not wish to make an additional donation, please select “Other” and enter $0 for the donation amount.Your payment to Arkansas Groundwater & Reservoir Association will remain unchanged. The Arkansas Groundwater and Reservoir Association (AGRA) is a 501-c12 Not-for-Profit corporation which seeks to develop, manage, and conserve the water resources of the Arkansas River basin, for the purposes of providing augmentation water to replace out-of-priority depletions made to the Arkansas River by well pumping.