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Standard Title and Test Description <br /> ASTM D 1587 Thin Wall Sampling Method <br /> ASTM D4943 Standard test Method for Shrinkage Factors of Soil by Wax Method <br /> ASTM D4542 Standard Test Method for Pore Water Extraction and Determination of the Soluble Salt Content of Soils <br /> by Refractometer <br /> ASTM E1195 Standard Test Method for Determining a Sorption Constant(Koc)for an Organic Chemical in Soil and <br /> Sediments <br /> ' ASTM D6391 Standard Test Method for Field Measurement of Hydraulic Conductivity Limits of Porous Materials Using <br /> Two Stages of Infiltration from a Borehole <br /> During the progress of the work, additional procedures may be needed for other testing or sampling. <br /> If such procedures do not exist, or if they exist and need to be modified, the CQA Engineer shall <br /> develop or revise written procedures as warranted. <br /> 4.2.2 Test Frequencies <br /> The project construction specifications establish the test frequencies for earthwork construction <br /> quality assurance and are summarized in Table 02200-1 and Table 02200-2 of the Construction <br /> Specifications. The test frequencies listed establish a minimum number of required tests. Extra testing <br /> must be conducted whenever work or materials are suspect, marginal, or of poor quality. Extra testing <br /> may also be performed to provide additional data for engineering evaluation. Re-tests performed as a <br /> result of a failing test do not contribute to the total number of tests performed in satisfying the <br /> minimum test frequency shown on the construction drawings. Examples of conditions that may <br /> warrant additional tests include the following: <br /> • Compactors slip while compacting <br /> ' • Excessive pumping or cracking of fill <br /> ' • Lift thickness greater than specified <br /> Dirt-clogged rollers used to compact the fill <br /> ' ® Improperly ballasted compactor <br /> ® Adverse weather <br /> ' ® Equipment breakdown <br /> ' ® Work conducted in difficult areas <br /> ® High frequency of failed tests <br /> CH CQA Plan 041712 Rev2a.doc 4-3 <br />