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current drainage patterns or modify drainage as shown on the Construction Drawings. Overexcavating and backfilling to the proper grade will not be acceptable. Finished site grading will be reviewed by the QA/QC CONSULTANT. 3.20 TOLERANCES A. Construct material limits within tolerance specified in Section 01410, SURVEYS. 3.21 TOPOGRAPHIC SURVEYS A. Refer to Section 01410, SURVEYS, for requirements regarding preconstruction surveys. B. The OWNER will conduct detailed topographic surveys of site to document "as- built" prepared subgrade on base and slope, thickness and grade of clay liner installed, thickness of granular drainage layer installed, thickness of protective operations layer installed, dimensions of termination berms and sumps, and terminations of geomembrane liner. All surveys will be performed in accordance with Section 01410, SURVEYS. 1. Measure area elevations on minimum 75-foot-grid over entire area and at all breaks in grade. 2. Establish reference grid at minimum 75-foot centers for surveying materials with a thickness requirement. 3. Measure linear dimensions a minimum of 75-feet on center. 4. Plot results of topographic surveys to scale of 1 inch equals 50 feet and provide survey information in electronic format to QA/QC CONSULTANT. 5. QA/QC CONSULTANT will check the survey. The EARTHWORK CONTRACTOR shall not construct next layer of the lining system until survey approval is provided by the QA/QCCONSULTANT. QA/QC CONSULTANT's review shall be completed within 2 working days following receipt of the as-built survey information. 3.22 ACCEPTANCE OF WORK A. Final acceptance will be based on tests made on completed Work, on samples of material taken from the completed layers, and the as-built surveys. Testing for final acceptance will be performed by the QA/QC CONSULTANT in accordance with the requirements of these Specifications and the CQA Manual. Forward Landfill WMU FU-14 02300 27 EARTHWORK