Valdez Construction, Inc. 8/7/2023

City of Everett 00 72 00 - 29 obligated to consider or review a request for substitution and may,in their sole discretion and option, ' consider or review such requests. If the offered substitution requires changes to or coordination with other portions of the work,the Contractor shall include with its substitution request any such drawings and details showing such ' changes. The Contractor agrees to perform these changes as part of the substitution of material or Equipment at no additional cost to the Owner. Approval of a substitution request shall not relieve the Contractor from responsibility for the efficiency,quality,and performance of the substitute material or ' Equipment,in the same manner and degree as the material and Equipment originally specified. Any cost differential associated with a substitution shall be reflected in the offer. If the Owner approves the substitution,the Contract Documents shall be modified by a Change Order modifying the Contract Sum ' in the amount of the cost differential. 8.6. DEMONSTRATION OF COMPLIANCE WITH CONTRACT REQUIREMENTS 8.6.1. Inspection ' The burden of proving the constructed Work complies with the Contract Documents shall be on the Contractor at all times. To demonstrate its compliance with the Contract requirements,the Contractor shall assist the Owner's Representative in his or her inspection and observation of the Work. The Contractor shall grant the Owner's Representative access to the Work and Work Site,and to places where Work is being prepared,or where materials,Equipment,or machinery are being obtained for Work. The Contractor shall provide information requested by the Owner's Representative in connection with inspection work. If the Contract Documents,laws, ordinances,or any public regulatory authority requires parts of the Work to be specially inspected,tested,or approved,the Contractor shall give the Owner's Representative adequate prior written Notice of the availability of the subject Work for examination,which Notice shall be not less than two(2)working days. Inspection and quality control tests performed on Work by the Contractor by the Owner's Representative ' shall not relieve the Contractor of its responsibility for errors or lack of quality therein and shall not be regarded as an assumption of risks or liability by the Owner's Representative for the Contractor's compliance with these Contract Documents. Contractor remains responsible and liable for all errors, defects or a lack of quality not discovered by inspection or observation. If parts of the Work are covered prior to inspection or observation,the cost of exposing the Work for inspection and closing and re-covering shall be borne by the Contractor regardless of whether the Work is ' found to be in compliance with the Contract. 8.6.2. Samples of Materials The Contractor shall provide Samples or specimens of materials to be incorporated in the Work that ' require laboratory examination or special testing,as requested by the Owner's Representative. Such Samples or specimens shall be provided in ample time to permit making proper test analysis and examinations before the Contractor plans to incorporate the material into the Work. An independent testing laboratory will conduct tests of material in accordance with the Specifications. In the absence of a specific test requirement,the Owner's Representative will determine the appropriate standard test to be used. ' 8.6.3. Certification In cases where compliance of materials or Equipment to Contract requirements is not readily determinable through inspection and tests,the Contractor shall provide properly authenticated documents, ' certificates, or other proof satisfactory to the Owner's Representative that the materials and Equipment comply with the Contract requirements. These documents, certifications, and proofs shall include performance characteristics, construction materials,and physical or chemical characteristics of materials. The Contractor shall pay all associated costs of such certification. 00 72 00 - 29 GENERAL CONDITIONS