---
kind: "section"
citation: "40 C.F.R. § 265.225"
title: "40"
number: "265.225"
heading: "Waste analysis and trial tests."
url: "https://uscodex.org/cfr/40/265.225"
---

# §265.225. Waste analysis and trial tests.

- (a) In addition to the waste analyses required by [§ 265.13](/cfr/40/265.13.md), whenever a surface impoundment is to be used to:
  - (1) Chemically treat a hazardous waste which is substantially different from waste previously treated in that impoundment; or
  - (2) Chemically treat hazardous waste with a substantially different process than any previously used in that impoundment; the owner or operator must, before treating the different waste or using the different process:
    - (i) Conduct waste analyses and trial treatment tests (e.g., bench scale or pilot plant scale tests); or
    - (ii) Obtain written, documented information on similar treatment of similar waste under similar operating conditions; to show that this treatment will comply with [§ 265.17(b)](/cfr/40/265.17.md?p=b).
- (b) [Reserved]

## Notes

### Authority

Authority: 42 U.S.C. 6905, 6906, 6912, 6922, 6923, 6924, 6925, 6935, 6936, 6937, and 6939g.

### Source

Source: 45 FR 33232, May 19, 1980, unless otherwise noted.