---
kind: "section"
citation: "40 C.F.R. § 761.298"
title: "40"
number: "761.298"
heading: "Decisions based on PCB concentration measurements resulting from sampling."
url: "https://uscodex.org/cfr/40/761.298"
---

# §761.298. Decisions based on PCB concentration measurements resulting from sampling.

- (a) For grid samples which are chemically analyzed individually, the PCB concentration applies to the area of inference as described in [§ 761.283(d)](/cfr/40/761.283.md?p=d).
- (b) For grid samples analyzed as part of a composite sample, the PCB concentration applies to the area of inference of the composite sample as described in [§ 761.283(d)](/cfr/40/761.283.md?p=d) (i.e., the area of inference is the total of the areas of the individual samples included in the composite).
- (c) For coordinate pair samples analyzed as part of a composite sample, in accordance with §§ [761.283(c)(2)](/cfr/40/761.283.md?p=c-2) and [761.289(b)(2)(ii)](/cfr/40/761.289.md?p=b-2-ii), the PCB concentration applies to the entire cleanup site.

## 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.