RCRA Hazardous Waste Number
Nonwastewaters from the production of dyes and/or pigments (including nonwastewaters commingled at the point of generation with nonwastewaters from other processes) that, at the point of generation, contain mass loadings of any of the constituents identified in paragraph (c) of this section that are equal to or greater than the corresponding paragraph (c) levels, as determined on a calendar year basis. These wastes will not be hazardous if the nonwastewaters are: (i) disposed in a Subtitle D landfill unit subject to the design criteria in § 258.40, (ii) disposed in a Subtitle C landfill unit subject to either § 264.301 or § 265.301, (iii) disposed in other Subtitle D landfill units that meet the design criteria in § 258.40, § 264.301, or § 265.301, or (iv) treated in a combustion unit that is permitted under Subtitle C, or an onsite combustion unit that is permitted under the Clean Air Act. For the purposes of this listing, dyes and/or pigments production is defined in paragraph (b)(1) of this section. Paragraph (d) of this section describes the process for demonstrating that a facility's nonwastewaters are not K181. This listing does not apply to wastes that are otherwise identified as hazardous under §§ 261.21-261.24 and 261.31-261.33 at the point of generation. Also, the listing does not apply to wastes generated before any annual mass loading limit is met
Official source: 40 CFR Part 261 (eCFR)Hazard Basis
Listed - toxic
Industry Source
Organic chemicals
Regulation
40 CFR Part 261
Need recovery options for a K181 stream?
Map recovery routes for K181Source-specific wastes from 13 named industries, including petroleum refining, wood preservation, pesticide manufacturing and iron and steel production. Each K code names both the industry and the exact process residue.
K codes apply only to the named industry and the named process residue.
Many K wastes have established recovery paths inside their industry (e.g. metals reclamation from refinery and steel residues).
Land disposal restrictions (40 CFR Part 268) set treatment standards before disposal.
Recognized recovery routes for this waste family, ranked by typical recovery tier. Which route fits depends on your specific stream — composition, volume and region.
Process residues that still carry recoverable product or feedstock value can be reclaimed — processed to recover a usable material or regenerated for reuse — inside or outside the generating industry.
40 CFR 261.1(c)(4) — reclamationOrganic-bearing streams with usable fuel value can be blended and burned for energy recovery in permitted boilers and industrial furnaces instead of being incinerated as pure disposal.
40 CFR Part 266 Subpart H — burning for energy recoveryWhere no recovery route fits the stream, land disposal restriction treatment standards define the required treatment before landfill — the compliance floor, not a recovery outcome.
40 CFR 268.40 — LDR treatment standardsThese are the typical routes for the K list. Your stream's actual options depend on its composition and where it sits.
Get the ranked options for your streamLeave your work email. Our industrial desk sends verified company contacts with location-specific pricing and contract minimums for nonwastewaters from the production of dyes and/or pigments (including nonwastewaters commingled at the point of generation with nonwastewaters from other processes) that, at the point of generation, contain mass loadings of any of the constituents identified in paragraph (c) of this section that are equal to or greater than the corresponding paragraph (c) levels, as determined on a calendar year basis. these wastes will not be hazardous if the nonwastewaters are: (i) disposed in a subtitle d landfill unit subject to the design criteria in § 258.40, (ii) disposed in a subtitle c landfill unit subject to either § 264.301 or § 265.301, (iii) disposed in other subtitle d landfill units that meet the design criteria in § 258.40, § 264.301, or § 265.301, or (iv) treated in a combustion unit that is permitted under subtitle c, or an onsite combustion unit that is permitted under the clean air act. for the purposes of this listing, dyes and/or pigments production is defined in paragraph (b)(1) of this section. paragraph (d) of this section describes the process for demonstrating that a facility's nonwastewaters are not k181. this listing does not apply to wastes that are otherwise identified as hazardous under §§ 261.21-261.24 and 261.31-261.33 at the point of generation. also, the listing does not apply to wastes generated before any annual mass loading limit is met — not generic benchmarks.
Reviewed by our industrial desk within 1 business day.
Deepen your understanding of industrial symbiosis and circular economy strategies.