# 1,4:5,8-Dimethanonaphthalene, 1,2,3,4,10,10-hexachloro-1,4,4a,5,8,8a-hexahydro-, (1alpha,4alpha,4abeta,5alpha, 8alpha,8abeta)- — US federal chemical regulatory reporting thresholds by program (CERCLA and EPCRA)

For 1,4:5,8-Dimethanonaphthalene, 1,2,3,4,10,10-hexachloro-1,4,4a,5,8,8a-hexahydro-, (1alpha,4alpha,4abeta,5alpha, 8alpha,8abeta)-, cas no. is 309-00-2; cercla rq (lbs) is 1; rcra waste number is P004; regulatory categories is 1,2,4, verified against its source on 2026-09-16.

- **Substance:** 1,4:5,8-Dimethanonaphthalene, 1,2,3,4,10,10-hexachloro-1,4,4a,5,8,8a-hexahydro-, (1alpha,4alpha,4abeta,5alpha, 8alpha,8abeta)- _(verified: appears in the quote below)_
- **CAS No.:** 309-00-2 _(verified: appears in the quote below)_
- **CERCLA RQ (lbs):** 1 _(verified: appears in the quote below)_
- **RCRA waste number:** P004 _(verified: appears in the quote below)_
- **Regulatory categories:** 1,2,4 _(verified: appears in the quote below)_

## What the source says

> 1,4:5,8-Dimethanonaphthalene, 1,2,3,4,10,10-hexachloro-1,4,4a,5,8,8a-hexahydro-, (1alpha,4alpha,4abeta,5alpha, 8alpha,8abeta)- | 309-00-2 | 1,2,4 | P004 | 1 (0.454)

## Source

- https://www.ecfr.gov/current/title-40/chapter-I/subchapter-J/part-302/section-302.4

Last verified: 2026-09-16. Review by: 2027-09-01.
Part of [US federal chemical regulatory reporting thresholds by program (CERCLA and EPCRA)](https://referencesource.org/chemical-regulatory-reporting-thresholds/).