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Orange County Eubanks Road C&D Landfill <br />Construction Quality Assurance Plan <br />Revised March 15, 2021 <br /> <br /> <br />the layer is a minimum of 12 inches thick. Partial surveys may be accepted at <br />the discretion of the QAE. <br /> <br /> 4) Surface Features <br /> <br />Provide the horizontal limits of the top of the topsoil layer. Provide grid <br />locations that indicate the completed elevations of the soil cap. Grid locations <br />shall be horizontally the same as the grid locations used for base grades. <br /> <br />Additionally, provide record drawing after completion of the project that <br />includes, but may not be limited to, the following items. <br /> <br />• diversion berms <br />• drainage channels <br />• culverts (with inverts) <br />• manholes <br />• water lines and valves <br />• hydrants <br />• sewer lines <br />• landfill gas vents/landfill gas wells <br />• landfill gas monitoring probes <br />• roads <br />• structures <br />• ponds <br />• riprap aprons and outlets <br />• concrete pads <br />• utility poles <br />• cleanouts <br /> <br /> 5) Tolerances <br /> <br />Tolerances for the various components surveyed for the cap system shall be: <br /> <br />• base grades: 0 to -0.2 feet <br />• top of vegetative layer: 2.0 +0.2 feet from top of soil cap <br />• piping: +0.1 feet provided required slopes are <br /> maintained <br />• all other components ±0.2 feet <br /> <br />These tolerances are allowable provided the required slopes and material thicknesses <br />are maintained. Tolerances for piping shall be +0.1 feet. <br /> <br />e. Construction Staking <br />DocuSign Envelope ID: 0844D1D6-E311-4FC5-8B5B-BB1E27A908ED