Exhibit 31.1 CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I , Keith Brackpool, certify that: 1. I have reviewed this Amendment No. 1 to the annual report on Form 10-K of Cadiz Inc.; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report; Dated: April 27, 2006 /s/ Keith Brackpool ------------------------------------ Keith Brackpool Chairman and Chief Executive Officer