---
kind: "section"
citation: "40 C.F.R. § 761.265"
title: "40"
number: "761.265"
heading: "Sampling bulk PCB remediation waste and porous surfaces."
url: "https://uscodex.org/cfr/40/761.265"
---

# §761.265. Sampling bulk PCB remediation waste and porous surfaces.

- (a) Use a grid interval of 3 meters and the procedures in §§ [761.283](/cfr/40/761.283.md) and [761.286](/cfr/40/761.286.md) to sample bulk PCB remediation waste that is not in a container and porous surfaces.
- (b) **Use the following procedures to sample bulk PCB remediation waste that is in a single container.**
  - (1) Use a core sampler to collect a minimum of one core sample for the entire depth of the waste at the center of the container. Collect a minimum of 50 cm 3 of waste for analysis.
  - (2) If more than one core sample is taken, thoroughly mix all samples into a composite sample. Take a subsample of a minimum of 50 cm 3 from the mixed composite for analysis.
- (c) **Use the following procedures to sample bulk PCB remediation waste that is in more than one container.**
  - (1) Segregate the containers by type (for example, a 55-gallon drum and a roll-off container are types of containers).
  - (2) **For fewer than three containers of the same type, sample all containers.**
  - (3) For more than three containers of the same type, list the containers and assign each container an unique sequential number. Use a random number generator or table to select a minimum of 10 percent of the containers from the list, or select three containers, whichever is the larger.
  - (4) **Sample the selected container(s) according to paragraph (b) of this section.**

## Notes

### Source

Source: 63 FR 35464, 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.