---
kind: "section"
citation: "40 C.F.R. § 141.50"
title: "40"
number: "141.50"
heading: "Maximum contaminant level goals for organic contaminants."
url: "https://uscodex.org/cfr/40/141.50"
---

# §141.50. Maximum contaminant level goals for organic contaminants.

- (a) **MCLGs are zero for the following contaminants—**
  - (1) **Benzene.**
  - (2) **Vinyl chloride.**
  - (3) **Carbon tetrachloride.**
  - (4) 1,2-dichloroethane.
  - (5) **Trichloroethylene.**
  - (6) **Acrylamide.**
  - (7) **Alachlor.**
  - (8) **Chlordane.**
  - (9) **Dibromochloropropane.**
  - (10) 1,2-Dichloropropane.
  - (11) **Epichlorohydrin.**
  - (12) **Ethylene dibromide.**
  - (13) **Heptachlor.**
  - (14) **Heptachlor epoxide.**
  - (15) **Pentachlorophenol.**
  - (16) **Polychlorinated biphenyls (PCBs).**
  - (17) **Tetrachloroethylene.**
  - (18) **Toxaphene.**
  - (19) **Benzo[a]pyrene.**
  - (20) **Dichloromethane (methylene chloride).**
  - (21) **Di(2-ethylhexyl)phthalate.**
  - (22) **Hexachlorobenzene.**
  - (23) 2,3,7,8-TCDD (Dioxin).
  - (24) **PFOA.**
  - (25) **PFOS.**
- (b) **MCLGs for the following contaminants are as indicated—**

## Notes

### Amendments

[50 FR 46901, Nov. 13, 1985, as amended at 52 FR 20674, June 2, 1987; 52 FR 25716, July 8, 1987; 56 FR 3592, Jan. 30, 1991; 56 FR 30280, July 1, 1991; 57 FR 31846, July 17, 1992; 89 FR 32744, April 25, 2024]

### Authority

Authority: 42 U.S.C. 300f, 300g-1, 300g-2, 300g-3, 300g-4, 300g-5, 300g-6, 300j-4, 300j-9, and 300j-11.

### Source

Source: 40 FR 59570, Dec. 24, 1975, unless otherwise noted.

### Amendments

[50 FR 46901, Nov. 13, 1985, as amended at 52 FR 20674, June 2, 1987; 52 FR 25716, July 8, 1987; 56 FR 3592, Jan. 30, 1991; 56 FR 30280, July 1, 1991; 57 FR 31846, July 17, 1992; 89 FR 32744, April 25, 2024]