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| EX-10.6 19/64 purchasers and investors, ground lessees, and existing and prospective lenders; and, during the last nine (9) months of the Term, place signs for the rental of, and show the Premises to prospective tenants. Landlord agrees to use commercially reasonable efforts not to unreasonably interfere with Tenant’s operations at the Premises in connection with the exercise of its rights to enter the Premises pursuant to the terms of this Section 11. Notwithstanding anything to the contrary set forth in this Section 11, except (i) in the event of an emergency, (ii) to the extent requested by Tenant, or (iii) in conjunction with any scheduled maintenance programs, Landlord shall use commercially reasonable efforts to provide Tenant with at least twenty-four (24) hours’ prior verbal or written notice of Landlord’s entry into the Premises. Notwithstanding the foregoing, Landlord shall be permitted to lease the roof to a third-party in order to install solar panels thereon provided that such use does not interfere with Tenant’s operations within thePremises or at the Project in any manner.12. ENVIRONMENTAL MATTERS 12.1 Hazardous Materials. Tenant shall not cause, permit, or allow any of Tenant’s or Tenant’s affiliates’ employees, agents, customers, visitors, invitees, licensees, contractors, assignees, or subtenants (individually, a “Tenant Party” and collectively, “Tenant’s Parties”) to cause or permit, any Hazardous Materials (as defined herein) to be brought upon, stored, manufactured, generated, blended, handled, recycled, treated, disposed or used on, under, or about the Premises or the Project, except for amounts of office and janitorial supplies in usual and customary quantities for the reasonable use of the Premises for general office and reasonable building operation purposes or in connection with the Permitted Hazardous Materials as set forth on Exhibit I attached hereto, in each case as subject to the requirement to store, use, and dispose of all of the foregoing in a safe and reasonable manner and in accordance with all applicable Environmental Laws. As used herein, the term “Environmental Laws” means all applicable present and future statutes, regulations, ordinances, rules, codes, judgments, orders or other similar enactments of any governmental authority or agency regulating or relating to health, safety, or environmental conditions on, under, or about the Premises or the environment, including without limitation, the following: the Comprehensive Environmental Response, Compensation and Liability Act; the Resource Conservation and Recovery Act; and all state and local counterparts thereto, and any regulations or policies promulgated or issued thereunder. The term “Hazardous Materials” means and includes any substance, material, waste, pollutant, or contaminant listed or defined as hazardous or toxic, under any Environmental Laws, asbestos, petroleum, including crude oil or any fraction or derivative thereof, natural gas liquids, liquefied natural gas, synthetic gas usable for fuel (or mixtures of natural gas and such synthetic gas), and explosives, flammables, or radioactive substances of any kind. As defined in Environmental Laws, Tenant is and shall be deemed to be the “operator” of Tenant’s “facility” and the “owner” of all Hazardous Materials brought on the Premises by Tenant or any Tenant Party, and the wastes, by-products, or residues generated, resulting, or produced therefrom. Tenant shall cause Tenant and the Tenant Parties to comply with all Environmental Laws and shall not allow or permit the Land or the Building to become contaminated with any Hazardous Materials. Tenant shall immediately give Landlord a copy of any statement, report, notice, registration, application, permit, license, claim, action, or proceeding given to, or received from, any governmental authority or private party, or persons occupying the Premises concerning the presence, spill, release, discharge of, or exposure to, any Hazardous Materials or contamination in, on, or about the Premises or the improvements or the soil or groundwater thereunder. At alltimes with reasonable notice (except in the event of an 20 |