From the PDF introduction
A City of Splendors: Waterdeep Forgotten Realms Web Enhancement
NEW HISTORICAL AND GEOGRAPHICAL INFORMATION FOR USE WITH CITY OF SPLENDORS: WATERDEEP
City of Splendors: Waterdeep provides the most in-depth description to date of the famed city of Waterdeep in the FORGOTTEN REALMS Campaign Setting. The book also offers new prestige classes, feats, monsters, and magic items. But space did not permit an exhaustive description of the areas around Waterdeep, so author Eric Boyd has provided a complete description and history of those areas in this web enhancement.
As always, feel free to adapt the material presented here as you see fit to make it work with your campaign.