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r �-� 1%�T420 ;urnmary of Designated LevN Calculations a Total. Designated.Level for a constituent of.a liquid waste, expressed in milligrams of �tal or dissolved constituent per liter of waste (mg/1 of waste), is equal to: Water Quality Goal (mgll) x Environmental Attenuation Factor lid waste,expressed in /The Soluble Designated L�tract fromel for a ohe Waste Extranstituent of a �t on Test(mg/of WET extr�}�is " - - of constituent per liter of e equal to: Water Quality Goal (mg/1) x Environmental Attenuation Factor 10 The Total Designated Level for a constituent of a solid waste, expressed in total milligrams of constituent per kilogram of waste (mg/kg of waste) is equal to: Soluble Designated Level x Leachability Factor x 10 or Water Quality x Environmental Attenuation x Leachability Goal (mgll) Factor Factor If the total concentration of a constituent of a solid waste equals or exceeds the Total extractable concentration of the constituent does not exceed the Designated Level but the Soluble Designated Level, the waste should not be classified as a 'designated waste', since it is the extractable or soluble constituent concentration that has the potential to adversely impact water quality. If the total concentration of a constituent in a solid waste is less than ten'(10) times the Soluble Designated Level for the constituent, it would be impossible for the extractable constituent concentration from the WET to equal or exceed the Soluble Designated Level; therefore,extraction testing would be unnecessary and the waste would not be considered a 'designated waste'. This is true because if all of the constituent was soluble,its concentration would be diluted by ten-fold in performing the WET and the resulting extractable concentration (in mg/1 of extract) would be one-tenth (1/10) of the total E concentration (in mg/kg of waste) prior to extraction. Note; Because the calculation of Total Designated Levels for solid wastes introduces an additional degree of uncertainty in the form of the leachability factor, extractable concentrations of solid waste constituents from the WET should be determined and compared with Soluble Designated Levels whenever possible. Note. In certain situations,a calculated Designated Level may fail below the concentration that is detectable using currently available analytical methods. In such cases, the Designated Level should be set at the limit of detection (i.e., i f the constituent is detected, it is assumed to exc�xd the Designated Uvel). Care should be taken to specify that the lowest acceptable ; method detection limit must be achieved by the Iaboratory. 'I Page 40 Designated Level Methodology