Speaking of appurtenances, there is a rooftop pool. Should that be included? Do I need to figure out the SRI value of water?

You may exclude it. While pools are not specifically mentioned in LEED Interpretation #10235, GBCI has informed LEEDuser that it would probably count them as an appurtenance and exclude them. This is also supported by LEED Interpretation for SSc7.1, #1412 issued 2/7/2006, that excludes water features.