Invoices paid by the Utah Division of Water Resources suggest that the bulk of the work on the state's Lake Powell Pipeline license application took place between 2009-2010, and again between 2016-2017. Work on the project apparently slowed during the intervening half-decade. Other documents show Utah ultimately submitted an unfinished draft of the application to federal regulators when state officials realized they were going to miss an important 2016 deadline.
Source: State Documents