Small Reclamation Water Resources Project Act of 2003

Small Reclamation Water Resources Project Act of 2003 - Amends the Small Reclamation Projects Act of 1956 to: (1) include irrigation projects and Indian tribes; and (2) revise the definitions of "project" and "water quality improvements."

Establishes within the Bureau of Reclamation a program under which the Secretary of the Interior may make grants on a 50-percent-matching-funds basis to organizations to carry out reclamation projects.

Establishes the Small Reclamation Water Resources Management Partnership Program to make grants and loans to implement projects that can be performed by the recipient organization's workforce or contractors in 18 months or less. Limits partnership grants and loans to $5 million each, to be matched on a 50 percent basis. Sets forth eligible activities under the partnership program, including water conservation, water quality improvements, water management for urban landscapes, drought assistance, fish and wildlife improvements, public safety improvements, and watershed planning. Authorizes the Secretary to include additional activities, as specified.

Establishes a demonstration program for guaranteeing loans for approved projects. Allocates available funds between reclamation and partnership projects. Prohibits the maximum guarantee percentage for loans from exceeding 75 percent of total project costs. Prohibits any guarantee from being issued after ten years following initial funding of projects under this Act.

Sets forth an examination fee structure.