40 CFR §761.269 — Sampling liquid PCB remediation waste.

1. (a)If the liquid is single phase, collect and analyze one sample. There are no required procedures for collecting a sample.
2. (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.
3. (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.