California Codes, Civil Code - CIV, Division 2 — Property, Part 4 — Acquisition of Property, Title 8 — Water Rights, Section 1414
As between appropriators, the one first in time is the first in right.
Notes
Establishes priority among appropriators according to time, giving the earlier appropriator the superior right over a later appropriator. The rule makes chronological priority controlling when competing appropriators claim rights, so the appropriation first made is first in right over competing later appropriations.
Use as reference
Lexinter.net | California Code, Civil Code - CIV § 1414 | https://laws.lexinter.net/codes/california/civil-code/division-2/part-4/title-8/section-1414