1970; 1971; 1972; 1973; 1974; 1975; 1976; 1977; 1978; 1979; 1980; 1981; 1982; 1983; 1984; 1985; 1986; 1987; 1988; 1989; 1990; 1991; 1992; 1993; 1994; 1995; 1996; 1997; 1998; 1999; 2000; 2001; 2002; 2003; 2004; 2005; 2006; 2007; 2008; 2009; 2010; 2011; 2012; 2013; 2014; 2015; 2016; 2017; 2018; 2019; 2020; 2021; 2022; 2023; 2024 fourth consultation; 2025 1st consultation; 2025 2nd Consultation; 2026;

AOPs modified - Lake Powell and Lake Mead operations only; Year 2000 to 2024; A ZIP FILE.

AOP: 30-year averages of unregulated flow into Lake Powell

• 1961 to 1990 - 11.8 million acre-feet (maf)
• 1971 to 2000 - 12.06 million acre-feet (maf) (2008 AOP)
  
• 1971 to 2000 - 12.04 maf (revised in 2010 AOP)
• 1981 to 2010 - 10.83 maf (2013 AOP)
• 1991 to 2020 - 9.6 maf (24-month Report)

AOP CONSULTATION WORK GROUP MEETINGS

• September meeting of: 2016; 2017; 2018; 2019; 2020; 2021;

ANNUAL REPORTS: FLAMING GORGE DAM

• Biological Opinion Click here

• 2006; 2007; 2008; 2009; 2010; 2011; 2012; 2013; 2014; 2015; 2016; 2017; 2018; 2019; 2020;
• Mid-Year Reports: 2021;