The Arizona Water Banking Authority is exploring the possibility of buying purified wastewater to distribute later – which would be unprecedented. At the AWBA commission’s meeting on Sept. 13, new bank manager Rebecca Bernat asked whether she should look into the possibility of the bank using effluent water credits. Until 2019, AWBA has only used excess Colorado River water long-term storage credits. That’s for the Central Arizona Project water stored in aquifers. Users can get the water later during a potential shortage by pumping it back out.