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O KEY TO AB13REV7:ATIONS and METHOD REFERENCES <br /> Less than; When appearing in results column indicates analyte <br /> not -detected at the value following. This datum supercedes the <br /> listed Reporting Limit. <br /> * Reporting Limits are a function of the dilution factor for any given <br /> sample. Actual reporting limits and results have been multiplied by <br /> the listed dilution factor. Do not multiply the reporting limits or <br /> reported values by the dilution factor. <br /> dw Result expressed as dry weight. <br /> mean Average; sum of measurements divided by number of measurements. <br /> mg/Kg (ppm) . Concentration in units of milligrams of analyte per kilogram of <br /> sample, wet-weight basis (parts per million) . <br /> mg/L Concentration in units of milligrams of analyte per liter of sample. <br /> mL/L/hr Milliliters per liter per hour. <br /> MPN/100 mL Most probable number of bacteria per one hundred milliliters of sample. <br /> N/A Not applicable. <br /> NA Not analyzed. <br /> ND Not detected; the analyte concentration is less than the applicable <br /> listed reporting limit. <br /> NTU Nephelometric turbidity units. <br /> RPD Relative percent difference, 100 {Value 1 - Value 21 /mean value. <br /> SNA Standard not available. <br /> ug/Kg (ppb) concentration in units of micrograms of analyte per kilogram of sample, <br /> wet-weight basis (parts per billion) , <br /> ug/L Concentration in units of micrograms of analyte per liter of sample. <br /> umbos/cm Micromhos per centimeter. <br /> Method References <br /> Methods 100 through 493: see "Methods for Chemical Analysis of Water & <br /> Wastes", U.S. EPA, 600/4-79-O20, Rev. 1983. <br /> Methods 601 through 625: see "Guidelines Establishing Test Procedures <br /> for the Analysis of Pollutants" U.S. EPA, 40 CFR, Part 136, Rev. 1988. <br /> Methods 1000 through 9999: see "Test Methods for Evaluating Solid <br /> Waste", U.S. EPA SW-846, 3rd edition, 1986. , Rev. 1, December 1987. <br /> SM: see "Standard Methods for the Examination of Water & Wastewater, <br /> 17th Edition, APRA, 1989. <br /> Revised September, 1993 <br /> abb.93 <br />