FIRST AMENDMENT TO LEASE
This First Amendment To Lease (“Amendment”), is made as of November 18, 2005, by and between Alaska
Consolidated DE LLC, YABQ DE LLC, and KDC Idaho DE LLC known as Lakepointe Centre I Co-
Tenancy, successor to M&S Prime Properties, Ltd. (“Landlord”) and American Ecology Corporation
WHEREAS , Landlord and Tenant entered into that certain Lease Agreement dated April 18, 2002 (“Lease”)
for that certain parcel of real property and the improvements located thereon known as Lakepointe Centre I, 300
East Mallard Drive, Suite 300, Boise, Idaho (“Premises”);
WHEREAS , Landlord and Tenant desire to expand the Premises of the Lease and to amend the Lease in
certain respects as provided below.
NOW, THEREFORE , for good and valuable consideration, the receipt and sufficiency of which are hereby
acknowledged, the parties hereto agree as follows:
Construction . Any capitalized term not defined in this Amendment shall have the meaning given to it
in the Lease. In the event of any inconsistency between the provisions of the Lease and this Amendment, the
provision of this Amendment shall control.
Timing. Each of the following amendments to the Lease take effect as of February 1, 2006, or upon
substantial completion of tenant improvements to Suite 360, whichever happens last, unless expressly provided
Premises. Section 6 of the Basic Lease Information of the Lease is amended to add Suite 360 to the
Premises with an additional 2,353 rentable square feet as shown in Exhibit A attached hereto, which will make
the total Premises 10,925 rentable square feet.
Term. Section 7 of the Basic Lease Information of the Lease is amended to extend the term to sixty
Base Rent . The Base Rent provided in Section 10 of the Basic Lease Information of the Lease shall
be amended as follows:
Base Year. The Base Year provided in