In this chapter, unless the context otherwise requires:

1. "District" means an agricultural improvement district.

2. "Same general system of irrigation works" means any system of irrigation works of whatever character, combination or construction, by whatever means operated, and whether located within or without the boundaries of an agricultural improvement district or whether consisting of one or more connected or disconnected parts or portions and having one or more sources of supply or having one or more diversions or distribution systems. All drainage works and means of drainage that are in any manner acquired, controlled or operated by an agricultural improvement district for the drainage of all or a portion of the lands within the district, shall be a part of the general system of irrigation works of the district.