Site The site where the contaminant record was created. See Also Contaminant Descriptive identifier of the contaminant. See Also Abbreviation Short form for the identifier, which appears in some locations. Number of factors The number (up to four) of calculation factors supported in calculated indicators that reference the contaminant. See Also Factor 1 label The first calculation factor for the contaminant. See Also Factor 2 label The second calculation factor for the contaminant. See Also Factor 3 label The third calculation factor for the contaminant. See Also Factor 4 label The fourth calculation factor for the contaminant. See Also Description The description of the item. You can use this box to include any additional details.