40 CFR § 761.269 - Sampling liquid PCB remediation waste.
(a) If the liquid is single phase, collect and analyze one sample. There are no required procedures for collecting a sample.
(b) If the liquid is multi-phasic, separate the phases, and collect and analyze a sample from each liquid phase. There are no required procedures for collecting a sample from each single phase liquid.
(c) If the liquid has a non-liquid phase which is >0.5 percent by total weight of the waste, separate the non-liquid phase from the liquid phase and sample it separately as a non-liquid in accordance with § 761.265.
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