---
kind: "section"
citation: "40 C.F.R. § 761.286"
title: "40"
number: "761.286"
heading: "Sample size and procedure for collecting a sample."
url: "https://uscodex.org/cfr/40/761.286"
---

# §761.286. Sample size and procedure for collecting a sample.


At each selected sampling location for bulk PCB remediation waste or porous surfaces, collect at least 20 milliliters of waste, or a portion of sufficient weight for the chemical analyst to measure the concentration of PCBs and still have sufficient analytical detection sensitivity to reproducibly measure PCBs at the levels designated in [§ 761.61(a)(4)](/cfr/40/761.61.md?p=a-4). Use a core sampler having a diameter ≥2 cm and ≤3 cm. Collect waste to a maximum depth of 7.5 cms.


## Notes

### Source

Source: 63 FR 35465, June 29, 1998, unless otherwise noted.

### Authority

Authority: 15 U.S.C. 2605, 2607, 2611, 2614, and 2616 and 42 U.S.C. 6939g.

### Source

Source: 43 FR 7156, Feb. 17, 1978, unless otherwise noted.