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the OWNER and QA/QC CONSULTANT at least two days before the scheduled <br /> start date of the Work. The OWNER and QA/QC CONSULTANT shall review <br /> the preconstruction survey to assess conformance with existing site conditions. <br /> Once reviewed and accepted by the OWNER and QA/QC CONSULTANT, the <br /> preconstruction survey shall form the basis for measurement and payment quantity <br /> calculations. <br /> B. The OWNER will prepare as-built survey drawings of the top of subgrade, top of <br /> clay liner, and top of protective operations layer. The as-built drawings will be <br /> prepared at a 1:50 scale and will depict the prominent layer with the preceeding <br /> layer in a screened font. Grid points and elevations of both the prominent and <br /> preceeding layer will be shown. A table listing northings, eastings, and elevations <br /> of the coordinate points will also be included on the drawing. <br /> C. The results of the top of clay liner, top of granular drainage layer, and top of <br /> protective operations layer surveys will be provided to the QA/QC <br /> CONSULTANT within two days of the survey for approval prior to placing <br /> overlying materials. The QA/QC CONSULTANT shall have two working days to <br /> review survey results and may independently verify survey results. The time <br /> taken by the OWNER to perform the survey and by the QA/QC CONSULTANT <br /> in checking and verifying the survey results will be considered included in the <br /> total calendar days allotted the EARTHWORK CONTRACTOR before liquidated <br /> damages are assessed. <br /> 1.4 PRECONSTRUCTION SURVEY <br /> A. The EARTHWORK CONTRACTOR shall perform a preconstruction survey in <br /> all areas identified by the DESIGN ENGINEER as having been modified from the <br /> topography depicted on the Construction Drawings. 0 <br /> B. The preconstruction survey shall be performed at a minimum 100-ft grid, <br /> delineate all break points and significant features, and be of sufficient detail to <br /> create a topographic map suitable for volume calculation purposes. <br /> 1.5 SURVEYS FOR LAYOUT AND PERFORMANCE OF WORK <br /> A. The EARTHWORK CONTRACTOR shall perform all surveys for layout and <br /> performance of the Work, reduce the field notes, and make necessary calculations <br /> for performance of the Work. <br /> 1.6 AS-BUILT SURVEY DRAWINGS <br /> A. The OWNER will establish a 75-foot reference grid for verifying minimum slope <br /> grades and for thickness determinations of overlying layers of the lining and LCRS <br /> systems. Survey measurements shall be taken at the same reference grid points for <br /> each succeeding layer. <br /> B. The EARTHWORK CONTRACTOR shall notify the OWNER at least 3 working <br /> days in advance of when a layer is completed and ready for as-built surveys. As- <br /> built surveys will only be performed on completed layers and not on partially <br /> completed layers, unless surveying of partial layers is approved by the OWNER. <br /> The OWNER will perform the as-built survey within two days of the layer being <br /> completed. The results of the top of subgrade, top of clay liner, and top of protective <br /> operations layer surveys will be provided to the QA/QC CONSULTANT within two <br /> Forward Landfill WMU FU-04 <br /> 01410 2 SURVEYS <br />