sludge
Defined in 2 places across 2 titles of the United States Code.
(26A) The term “sludge” means any solid, semisolid or liquid waste generated from a municipal, commercial, or industrial wastewater treatment plant, water supply treatment plant, or air pollution control facility or any other such waste having similar characteristics and effects.
Source
- 201642 U.S.C. § 6903The Public Health and Welfare · Definitions · under this chapter
Sludge.—The term “sludge” means any solid, semi-solid or liquid waste generated from a municipal, commercial, or industrial wastewater treatment plant, water supply treatment plant, or air pollution control facility exclusive of the treated effluent from a wastewater treatment plant.
Source
- 2008–202649 U.S.C. § 10908Transportation · Regulation of solid waste rail transfer facilities · in this section
The term “sludge” means any solid, semi-solid or liquid waste generated from a municipal, commercial, or industrial wastewater treatment plant, water supply treatment plant, or air pollution control facility exclusive of the treated effluent from a wastewater treatment plant.
Source
- 2026–present49 U.S.C. § 10908Transportation · Regulation of solid waste rail transfer facilities · in this section
The term "sludge" means any solid, semisolid or liquid waste generated from a municipal, commercial, or industrial wastewater treatment plant, water supply treatment plant, or air pollution control facility or any other such waste having similar characteristics and effects.
Source
- 1994–present42 U.S.C. § 6903The Public Health and Welfare · Definitions · under this chapter