What is a good source for large tables on the properties of water?
Such values for various properties of liquid water and steam can be looked up in so-called steam tables. Software versions also allow calculations (ususally interpolation) of additional values. For example, I usually use REFPROP – NIST Standard Reference Database (however, not always the latest version) or some old and simple proprietary steam table software from Siemens/KWU.

If you do not have access to professional steam tables, you may want to consider using the steam tables that are included in WolframAlpha.