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<br />..... <br />CD <br />CD <br />..... <br /> <br />ABS <br />af <br />afy <br />ASTM <br />AWWA <br /> <br />BLM <br />CaC03 <br />CAP <br />C02 <br />CRB <br /> <br />CRSDE <br /> <br />CRSS <br />CPVC <br />cwl <br />DO <br /> <br />ABBREVIATIONS AND DEFINITIONS <br /> <br />- acrylic butylene styrene (plastic used for wastewater pipe) <br />- acre-foot <br />- acre-feet per year <br />- American Society for Testing and Materials <br />- American Water Works Association <br /> <br />- United States Department of the Interior, Bureau of Land Management <br />- calcium carbonate (used as an index of water hardness) <br />- Central Arizona Project <br />- carbon dioxide <br />- Colorado River Basin <br /> <br />- Colorado River Salinity Damage Estimation [the computer program <br />and input data developed in this study] <br />- Colorado River Simulation System <br />- chlorinated polyvinyl chloride (plastic used for water pipe) <br />- hundredweight (= 100 pounds) <br />- dissolved oxygen <br /> <br />dS/m - deciSiemens per meter, a measure of electrical conductivity <br />equal to one millimho per centimeter (mmho/cm) <br />e - the natural exponential, or base of natural logarithms, approximately 2,71828 <br />EPA - U.S. Environmental Protection Agency <br />GNP Implicit Price Deflator - A quarterly price index published by the US, Department of <br />Commerce <br />hardness - water hardness is described in terms of temporary hardness, <br />permanent hardness, and total hardness, <br /> <br />maf <br />M&I <br />mgd <br />mg/L <br />mmho <br /> <br />- million acre-feet <br />- municipal and industrial <br />- million gaUons per day <br />- milligrams per liter <br />- millimho <br /> <br />mmho/cm - millimho per centimeter <br />IJ.mho - micromho (0.001 millimho) <br />MWD - Metropolitan Water District of Southern California <br />O&M - operation and maintenance <br />OLAC - Orange and Los Angeles Counties (joint sponsors of a 1981 water reuse study] <br /> <br />aWRT - U,S. Department of the Interior, Office of Water Research <br />and Technology (since 1985, a part of the U.S, Geological Survey) <br />pH - the negative logarithm of the effective hydrogen ion concentration; <br />used as a scale to express degree of acidity/alkalinity <br />PC - personal computer <br />Permanent hardness - refers to the presence of chlorides or sulfates <br />of calcium and magnesium which cannot be removed by boiling <br />P.L. - Public Law <br /> <br />xi <br />