2012-04-10_REVISION - M1981185 (43)

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• Geotechnical Engineer — Professional engineer licensed to practice in Colorado with substantial experience in the geotechnical branch of civil engineering; and • Technician — An individual with training in engineering technology, with significant experience in construction oversight and testing of civil and earthwork projects who is trained and licensed to use nuclear density and moisture determination testing. Quality Control The construction contractor will generate daily reports describing work performed, equipment and manpower utilized to perform the work, issues arising during the work and how these issues were addressed. The contractor will be responsible for the following Quality Control activities: • Providing submittals from suppliers or independent entities that demonstrate materials utilized conform to the drawings and specifications; • Assuring that the appropriate equipment is used to efficiently and safely achieve the lines and grades shown on the construction drawings and the standards defined in the specifications; • Performing any necessary surveying at the site to verify dimensions, lines and grades of installed and constructed features are in compliance with the design; and, • Performing any necessary compaction tests or other tests specified for the design. Quality Assurance The Geotechnical Engineer and /or Technician will be onsite full time during the site work activities to assure the work is performed consistent with the Regulatory Authority approved construction drawings. Observations will include, but not be limited to, the following: • Observing cut slope excavations to confirm the slope inclinations are achieved and the materials exposed are as expected; • Performing the necessary laboratory testing to check that construction materials, including fill and backfill materials, conform to appropriate specifications; • Observing the placement of fill material; and • Reviewing the contractor's daily reports and other quality control information to check that work is being performed to the prescribed standards, and that unanticipated issues arising during construction are promptly addressed. Project Closeout The construction contractor will notify the geotechnical engineer within 5 days of substantial completion. The geotechnical engineer will then schedule a final site inspection with the contractor and Regulatory Authority. Work remaining and /or unsatisfactory work product identified by the geotechnical engineer and /or the Regulatory Authority will be discussed with the contractor and memorialized in a memorandum. This memorandum will identify the 'punch list' items that need to be addressed for final completion. At the completion of the work, a construction completion report will be prepared that provides a brief description of the work performed and a certification that the work was performed in accordance with the design and approved field changes during construction. Attachments to the construction completion report will include as -built drawings, a photographic log and the results of field and laboratory tests performed during construction. Page 6