When the San Diego County Water Authority filed its initial rate case lawsuit in 2010 against the Los Angeles-based Metropolitan Water District of Southern California, we knew it would be a marathon. Seven years later, we passed another important marker in the long-running litigation when a June 21 ruling by the state Court of Appeal sided with the Water Authority and the San Diego region on several significant issues. The decision includes a few key takeaways: The Water Authority has a right to significantly more water from MWD than MWD had credited.