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Orange County Eubanks Road C&D Landfill <br />Construction Quality Assurance Plan <br />Revised March 15, 2021 <br /> <br /> <br /> <br />a. The QAO shall inspect the embankment foundation to verify that an appropriate <br />subgrade is established for embankment construction. This may include the <br />placement and compaction of fill. (Section 02200). The QAO shall observe and <br />verify embankment construction to include the following: <br /> <br />1) Observations of soil and rock surfaces for adequate filling of rock joints, clay <br />fractures, or depressions, and removal and filling of sand seams. <br /> <br />2) Measurements of the depth and slope of the excavation or fill to verify that it <br />meets design requirements. Document measurements. <br /> <br />3) Observations to verify proper placement of recessed areas for collection pipes. <br /> <br />4) Observations to verify the quality of compacted fill. Verify that testing is <br />performed in accordance with the specifications. Tabulate testing results. <br />Include tabulation and testing results in the final QA report. <br /> <br />5) Observations of stripping and excavation to verify that there are no moisture <br />seeps and that soft, organic, and otherwise undesirable materials are removed. <br />Proof-rolling with heavy equipment can be used to detect soft areas likely to <br />cause settlement. <br /> <br />6) Observation and documentation of type of compaction equipment, number of <br />passes, and uniformity of compaction coverage. <br /> <br />7) Measurement of loose lift thickness. <br /> <br />8) Observation of material type, texture, color, and moisture content as placed. <br /> <br />9) Observation of scarification and connection between compacted fill lifts. <br /> <br />b. In general, observations shall be documented in the logs maintained by the QAO. <br /> <br /> <br />DocuSign Envelope ID: 0844D1D6-E311-4FC5-8B5B-BB1E27A908ED