EXHIBIT
      31.1





CERTIFICATION
      PURSUANT TO


SECTION
      302 OF THE SARBANES-OXLEY ACT OF 2002




I,
        James
        J. Houtz, President and Chief Executive Officer of Sionix
 Corporation,
        Inc., certify that:
 
 1. I
        have reviewed this quarterly report on Form 10-QSB of Sionix Corporation
        for the period ended June 30, 2007;
 
 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;
 
 3. Based
        on my knowledge, the financial statements, and other financial
        information included in this report, fairly present in all material
        respects the financial condition, results of operations and cash
        flows of the registrant as of, and for, the periods presented in this
        report;
 
 4. The
        registrant's other certifying officer and I are responsible for
        establishing and maintaining disclosure controls and procedures (as defined
        in Exchange Act Rules 13a-15(e) and 15d-15(e)) for the registrant
        and have:
 
 (a)
        Designed such disclosure controls and procedures, or caused
        such disclosure controls and procedures to be designed under
        our
        supervision, to ensure that material information relating
        to the registrant, including its consolidated subsidiaries,
        is made known to us by others within those entities, particularly
        during the period in which this report is being prepared;
 
 (b)
        Evaluated the effectiveness of the registrant's disclosure
        controls and procedures and presented in this report our
        conclusions about the effectiveness of the disclosure controls and
        procedures as of the end of the period covered by this report based
        on
        such evaluation; and
 
 (c)
        Disclosed in this report any change in the registrant's internal
        control over financial reporting that occurred during the registrant's
        most recent fiscal quarter that has materially affected,
        or is reasonably likely to materially affect, the registrant's
        internal control over financial reporting.
 
 5. The
        registrant's other certifying officer and I have disclosed, based
        on
        our most recent evaluation, to the registrant's auditors and the audit committee
        of registrant's board of directors (or persons performing
        the equivalent functions):
 
 (a) All
        significant deficiencies and material weaknesses in the
        design or operation of internal control over financial reporting
        which are reasonably likely to adversely affect the registrant's
        ability to record, process, summarize and report financial
        information; and
 
 
 (b) Any
        fraud, whether or not material, that involves management
        or other employees who have a significant role in the registrant's
        internal control over financial reporting.
  Date: August 14, 2007
                By:
                /s/
                    James J. HoutzJames
                  J. HoutzPresident