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<br />\PfiW~1rn~.~~~~ <br /> <br />I.i'" 'I. 19~~ <br /> <br />..,CoO" . <br />I~" . <br /> <br />C'O~;,,~ " <br /> <br />PROGRESS REPORT OF CLAY SEALING INVESTIGATIONS <br /> <br />DURING i961 <br /> <br />by <br /> <br />R. D. Dirmeyer, Jr. <br />Engineering Research <br />Colorado State University <br /> <br />Prepared for the <br />Colorado Water Conservation Board <br /> <br />Colorado State University Experiment Station <br />Civil Engineering Section <br />Fort Collins, Colorado <br /> <br />January 1962 <br /> <br />CER62RDDB <br /> <br />1051 <br />