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GEOMATRIX <br /> evaluate additional physical properties. Samples for chemical analysis will be collected in <br /> accordance with the protocol SOIL SAMPLING FOR CHEMICAL ANALYSIS. <br /> 3.1.1 Coring and/or Discrete Sampling <br /> Continuous cores from mud rotary borings will be collected, with a split-barrel sampler <br /> using a wire-line method of sampler operation. Continuous cores from the auger borings <br /> will be collected with a split-barrel sampler. The core diameter will be a minimum of <br /> 1.5 inches. In general, the split-barrel sampler will be opened for observation and logging <br /> of the retrieved core. <br /> 4" <br /> For discrete sampling of mud rotary or auger borings, sampling will be accomplished by <br /> am driving or pushing a split-barrel sampler. The field geologist/engineer will record <br /> information pertaining to the sampling, such as rate of penetration, hydraulic ram pressure <br /> e or drive-hammer blow count, coring smoothness and sample recovery on the BORING <br /> LOG. <br /> law <br /> At selected depth intervals, the split-barrel sampler may be fitted with brass or stainless <br /> MW steel liners for collection of soil samples for possible subsequent chemical or physical <br /> testing. Samples may be retained for future review and/or preserved for chemical or <br /> physical testing, as specified by the project manager. The samples will be stored and <br /> labeled to show project number, boring number, and cored interval denoted either by depth <br /> or sequential numbering system. Procedures for the preservation and transport of soil <br /> samples retained for chemical analysis are presented in the protocol SOIL SAMPLING <br /> FOR CHEMICAL ANALYSIS. <br /> ar <br /> 3.1.2 Collecting Drill Cuttings <br /> The field geologist/engineer will observe drill cuttings from the drilling return for every 5- <br /> foot increment of the rotary borings that are not continuously cored. Sampling and logging <br /> will be done by adherence to the following procedures: <br /> a. <br /> DRILLING AND DESTRUCTION OF SOIL BORINGS <br /> MSC%riEOMATRX.PRO REVISION DATE: NOVEMBER 1992 Page 3 of 6 <br />