A Memoir of the Construction, Cost, and Capacity of the Croton Aqueduct, by Charles King, New York, 1843

This is a great service of google.books (http://books.google.com/) where you can read this really old book online. It is an amazing description of the water system, how it was designed, and what it was modeled after.

The Title is: A Memoir of the Construction, Cost, and Capacity of the Croton Aqueduct Compiled from Official Documents: Together with an Account of the Civic Celebration of the Fourteenth October, 1842, on Occasion of the Completion of the Great Work: Preceded by a Preliminary Essay on Ancient and Modern Aqueducts By Charles King.

The link is:

http://books.google.com/books?id=FZ4OAAAAYAAJ&pg=PA146&source=gbs_toc_r&cad=0_0#PPR1,M1