“…The authors also note in the Preface to the 2E several chapters that were either revised or expanded (p. v). Gatliffe (1996) listed "no discussion of data quality objectives (DQO's)" and "lack of mention of the specialized area of spatial statistics" (p. 182) as the two principal de ciencies of the 1E. The authors state in the Preface to the 2E that "the statistical methods selected for discussion are those that have been useful in our work, which is environmental engineering, the areas of water and wastewater treatment, industrial pollution control, and environmental modeling" (p. v).…”