SECOND AMENDMENT TO LEASE AGREEMENT

Lease No. 5325

This Second Amendment to Lease Agreement ("Amendment"), dated for reference purposes only as of March 1, 2009 is by and between the COUNTY OF SAN MATEO, a political subdivision of the State of California ("County" or "Landlord"), as Lessor, and KIEWIT PACIFIC CO., a Delaware Corporation ("Tenant"), as Lessee.

Recitals

A. As authorized by San Mateo County Resolution No. 69365, County and Tenant entered into a lease agreement, dated for reference purposes as of April 22, 2008 (the "Lease") for approximately 18,000 square feet of Unimproved Land at that certain property commonly known as the Half Moon Bay Airport.

B. As authorized by San Mateo County Resolution No. 69521, County and Tenant entered into the First Amendment to Lease Agreement, dated for reference purposes as of June 15, 2008 (the "First Amendment"), which First Amendment extended the Expiration Date of the Lease to April 15, 2009, increased the Premises to 41,000 square feet with a corresponding increase in Rent, and established a process to allow additional increases to the area of the Premises (the “Lease As Amended”).

C. As authorized by the First Amendment and pursuant the process established therein, on July 31, 2008, County and Tenant agreed to increase the Premises to 51,000 square feet with a corresponding increase in Rent.

D. Landlord and County wish to further amend the Lease As Amended to extend the Term, and otherwise under the same terms and conditions set forth in the Lease.

Agreement

For good and valuable consideration as hereinafter set forth, the sufficiency of which is hereby acknowledged, the parties agree as follows:

By: __________________________

Its: __________________________

Attest: Mark Church

____________________________ Resolution No.:_______________