DEPARTMENT OF PUBLIC HEALTH AND ENVIRONMENT Hazardous Materials and Waste Management Division HAZARDOUS WASTE - IDENTIFICATION AND LISTING OF HAZARDOUS WASTE 6 CCR 1007-3 Part 261 [Editor’s Notes follow the text of the rules at the end of this CCR Document.] PART 261 - IDENTIFICATION AND LISTING OF HAZARDOUS WASTE Subpart A - General Sec.

261.1 Purpose and scope.

261.2 Definition of solid waste.

261.3 Definition of hazardous waste.

261.4 Exclusions.

261.5 Special requirements for hazardous waste generated by conditionally exempt small quantity generators.

261.6 Requirements for recyclable materials.

261.7 Residues of hazardous waste in empty containers.

261.8 PCB wastes regulated under Toxic Substance Control Act.

261.9 Requirements for Universal Waste.

1. Subpart B - Criteria for Identifying the Characteristics of Hazardous Waste and for Listing Hazardous Wastes

261.10 Criteria for identifying the characteristics of hazardous waste.

261.11 Criteria for listing hazardous waste.

1. Subpart C - Characteristics of Hazardous Waste

261.20 General

261.21 Characteristic of ignitability.

261.22 Characteristic of corrosivity.

261.23 Characteristic of reactivity.

261.24 Toxicity Characteristic.

1. Subpart D - Lists of Hazardous Wastes

261.30 General

261.31 Hazardous wastes from non-specific sources.

261.32 Hazardous wastes from specific sources.

261.33 Discarded commercial chemical products, off-specification species, container residues, and spill residues thereof.

261.35 Deletion of certain hazardous waste codes following equipment cleaning and replacement. APPENDICES TO PART 261 APPENDIX I REPRESENTATIVE SAMPLING METHODS APPENDIX II METHOD 1311 TOXICITY CHARACTERISTIC LEACHING PROCEDURE (TCLP) APPENDIX III CHEMICAL ANALYSIS TEST METHODS APPENDIX IV [RESERVED FOR RADIOACTIVE WASTE TEST METHODS] APPENDIX V [RESERVED FOR INFECTIOUS WASTE TREATMENT SPECIFICATIONS] APPENDIX VI [RESERVED FOR ETIOLOGIC AGENTS] APPENDIX VII BASIS FOR LISTING HAZARDOUS WASTE APPENDIX VIII HAZARDOUS CONSTITUENTS APPENDIX IX WASTES EXCLUDED UNDER § §260.20 AND 26022 Subpart A - General § 261.1 Purpose and Scope.

(a) This part identifies those solid wastes which are subject to regulation as hazardous wastes under Parts 262 through 268 and Part 100 and which are subject to the notification requirements of Part 99. In this part:

(1) Subpart A defines the terms “solid waste” and “hazardous waste,” identifies those wastes which are excluded from regulation under Parts 262 through 268, 99 and Part 100 and establishes special management requirements for hazardous waste produced by conditionally exempt small quantity generators and hazardous waste which is recycled.

(2) Subpart B sets forth the criteria used by the Department to identify characteristics of hazardous waste and to list particular hazardous wastes.

(3) Subpart C identifies characteristics of hazardous waste.

(4) Subpart D lists particular hazardous wastes.

(b)(1) The definition of solid waste contained in this Part applies only to wastes that also are hazardous. For example, it does not apply to materials (such as non-hazardous scrap, paper, textiles, or rubber) that are not otherwise hazardous wastes and that are recycled.

(2) This Part identifies only some of the materials which are solid wastes and hazardous wastes under Sections 3007, 3013, and 7003 of RCRA. A material which is not identified or listed in this Part, is still a solid waste and a hazardous waste for purposes of these sections if:

(i) In the case of Sections 3007 and 3013, EPA has reason to believe that the material may be a solid waste within the meaning of Section 1004(27) of RCRA and a hazardous waste within the meaning of Section 1004(5) of RCRA; or (ii) In the case of Section 7003, the statutory elements are established.

(c) An attached statement of basis and purpose for these regulations has been adopted by the Board of Health and is hereby incorporated by reference in these regulations pursuant to C.R.S. 1973, 24- 4-103.

(d) For the purposes of § 261.2 and 261.6:

(1) A “spent material” is any material that has been used and as a result of contamination can no longer serve the purpose for which it was produced without processing;

(2) “Sludge” has the same meaning used in § 260.10 of these regulations;

(3) A “by-product” is a material that is not one of the primary products of a production process and is not solely or separately produced by the production process. Examples are process residues such as slags or distillation column bottoms. The term does not include a co-product that is produced for the general public's use and is ordinarily used in the form it is produced by the process.

(4) A material is “reclaimed” if it is processed to recover a useable product, or if it is regenerated. Examples are recovery of lead values from spent batteries and regeneration of spent solvents.

(5) A material is “used or reused” if it is either:

(i) Employed as an ingredient (including use as an intermediate) in an industrial process to make a product (for example, distillation bottoms from one process used as feedstock in another process). However, a material will not satisfy this condition if distinct components of the material are recovered as separate end products (as when metals are recovered from metal-containing secondary materials); or (ii) Employed in a particular function or application as an effective substitute for a commercial product (for example, spent pickle liquor used as phosphorous precipitant and sludge conditioner in wastewater treatment).

(6) “Scrap metal” is bits and pieces of metal parts (e.g., bars, turnings, rods, sheets, wire) or metal pieces that may be combined together with bolts or soldering (e.g., radiators, scrap automobiles, railroad box cars), which when worn or superfluous can be recycled.

(7) A material is “recycled” if it is used, reused, or reclaimed.

(8) A material is “accumulated speculatively” if it is accumulated before recycled. A material is not accumulated speculatively, however, if the person accumulating it can show that the material is potentially recyclable and has a feasible means of being recycled; and that - during the calendar year (commencing on January 1) - the amount of material that is recycled, or transferred to a different site for recycling, equals at least 75% by weight or volume of the amount of that material accumulated at the beginning of the period. In calculating the percentage of turnover, the 75% requirement is to be applied to each material of the same type (e.g., slags from a single smelting process) that is recycled in the same way (i.e., from which the same material is recovered or that is used in the same way). Materials accumulating in units that would be exempt from regulation under § 261.4(c) are not to be included in making the calculation. (Materials that are already defined as solid wastes also are not to be included in making the calculation.) Materials are no longer in this category once they are removed from accumulation for recycling, however.

(9) “Excluded scrap metal” is processed scrap metal, unprocessed home scrap metal, and unprocessed prompt scrap metal.

(10) “Processed scrap metal” is scrap metal which has been manually or physically altered to either separate it into distinct materials to enhance economic value or to improve the handling of materials. Processed scrap metal includes, but is not limited to scrap metal which has been baled, shredded, sheared, chopped, crushed, flattened, cut, melted, or separated by metal type (i.e., sorted), and, fines, drosses and related materials which have been agglomerated.

(Note: shredded circuit boards being sent for recycling are not considered processed scrap metal. They are covered under the exclusion from the definition of solid waste for shredded circuit boards being recycled ( § 261.4(a)(15)).

(11) “Home scrap metal” is scrap metal as generated by steel mills, foundries, and refineries such as turnings, cuttings, punchings, and borings.

(12) “Prompt scrap metal” is scrap metal as generated by the metal working/fabrication industries and includes such scrap metal as turnings, cuttings, punchings, and borings. Prompt scrap is also known as industrial or new scrap metal. § 261.2 Definition of Solid Waste.

(a)(1) A solid waste is any discarded material that is not excluded by § 261.4(a) or that is not excluded by variance granted under § 260.30 and § 260.31.

(2) A discarded material is any material which is:

(i) Abandoned, as explained in paragraph (b) of this section; or (ii) Recycled, as explained in paragraph (c) of this section; or (iii) Considered inherently waste-like, as explained in paragraph (d) of this section.

(b) Materials are solid waste if they are abandoned by being:

(1) Disposed of; or (2) Burned or incinerated; or (3) Accumulated, stored, or treated (but not recycled) before or in lieu of being abandoned by being disposed of, burned, or incinerated.

(c) Materials are solid wastes if they are recycled - or accumulated, stored, or treated before recycling - as specified in paragraphs (c)(l) through (c)(4) of this section.

(1) Used in a manner constituting disposal.

(i) Materials noted with a “*” in column 1 of Table I are solid waste when they are:

1. (A) Applied to or placed on the land in a manner that constitutes disposal; or (B) Used to produce products that are applied to or placed on the land or are otherwise contained in products that are applied to or placed on the land (in which cases the product itself remains a solid waste).

(ii) However, commercial chemical products listed in § 261.33 are not solid wastes if they are applied to the land and that is their ordinary manner of use.

(2) Burning for energy recovery.

(i) Materials noted with a “*” in column 2 of Table 1 are solid wastes when they are:

1. (A) Burned to recover energy;
2. (B) Used to produce a fuel or are otherwise contained in fuels (in which cases the fuel itself remains a solid waste).

(ii) However, commercial chemical products listed in § 261.33 are not solid wastes if they are themselves fuels.

(3) Reclaimed. Materials noted with a “*” in column 3 of Table 1 are solid wastes when reclaimed (except as provided under § 261.4(a)(17) of these regulations). Materials noted with a “-” in column 3 of Table 1 are not solid wastes when reclaimed.

(4) Accumulated speculatively. Materials noted with a “*” in column 4 of Table 1 are solid wastes when accumulated speculatively.

1. Table 1 . Use constituting disposal Energy recovery/fuel § Reclamation ( § 261.2(c) ( § 261.2(c)(1)) 261.2(c)(2)) (3)) except as provided in 261.4(a)(17) for mineral processing secondary materials)

. (1) (2) (3)

Spent Materials (*) (*) (*)

Sludges (listed In § (*) (*) (*)

261.31 or § 261.32)

Sludges exhibiting a (*) (*) (-)

characteristic of hazardous waste By-products (listed in § (*) (*) (*)

261.31 or § 261.32)

By-products exhibiting a (*) (*) (-)

characteristic of hazardous waste Commercial chemical (*) (*) (-)

products listed in §

261.33

Scrap metal other than (*) (*) (*)

excluded scrap metal (see § 261.1(d)(9))

Note: The terms “spent materials” , “sludges” , “by-products” , “scrap metal” , and “processed scrap metal” are defined in § 261.1.

(d) Inherently waste-like materials. The following materials are solid wastes when they are recycled in any manner:

(1) Hazardous Waste Nos. F020, F021 (unless used as an ingredient to make a product at the site of generation), F022, F023, F026, and F028.

(2) Secondary materials fed to a halogen acid furnace that exhibit a characteristic of a hazardous waste or are listed as a hazardous waste as defined in Subparts C or D of this part, except for brominated material that meets the following criteria:

(i) The material must contain a bromine concentration of at least 45%; and (ii) The material must contain less than a total of 1% of toxic organic compounds listed in Appendix VIII; and (iii) The material is processed continually on-site in the halogen acid furnace via direct conveyance (hard piping).

(3) The Department will use the following criteria to add wastes to that list: (i)(A) The materials are ordinarily disposed of, burned, or incinerated; or

1. (B) The materials contain toxic constituents listed in Appendix VIII of Part 261 and these constituents are not ordinarily found in raw materials or products for which the materials substitute (or are found in raw materials or products in smaller concentrations) and are not used or reused during the recycling process; and

(ii) The material may pose a substantial hazard to human health and the environment when recycled.

(e) Materials that are not solid waste when recycled.

(1) Materials are not solid wastes when they can be shown to be recycled by being:

(i) Used or reused as ingredients in an industrial process to make a product, provided the materials are not being reclaimed; or (ii) Used or reused as effective substitutes for commercial products; or (iii) Returned to the original process from which they are generated, without first being reclaimed or land disposed. The material must be returned as a substitute for feedstock materials. In cases where the original process to which the material is returned is a secondary process, the materials must be managed such that there is no placement on the land. In cases where the materials are generated and reclaimed within the primary mineral processing industry, the conditions of the exclusion found at § 261.4(a)(17) apply rather than this paragraph.

(2) The following materials are solid wastes, even if the recycling involves use, reuse, or return to the original process (described in paragraphs (e)(1)(i) through (iii) of this section:

(i) Materials used in a manner constituting disposal, or used to produce products that are applied to the land; or (ii) Materials burned for energy recovery, used to produce a fuel, or contained in fuels; or (iii) Materials accumulated speculatively; or (iv) Materials listed in paragraphs (d)(1) and (d)(2) of this section.

(f) Documentation of claims that materials are not solid wastes or are conditionally exempt from regulation. Respondents in actions to enforce regulations implementing Subtitle C of RCRA who raise a claim that a certain material is not a solid waste or is conditionally exempt from regulation, must demonstrate that there is a known market or disposition for the material, and that they meet the terms of the exclusion or exemption. In doing so, they must provide appropriate documentation (such as contracts showing that a second person uses the material as an ingredient in a production process) to demonstrate that the material is not a waste, or is exempt from regulation. In addition, owners or operators of facilities claiming that they actually are recycling materials must show that they have the necessary equipment to do so. § 261.3 Definition of Hazardous Waste.

(a) A solid waste, as defined in § 261.2, is a hazardous waste if it has no commercial use or value and:

(1) It is not excluded from regulation as a hazardous waste under § 261.4(b); and (2) It meets any of the following criteria:

(i) It exhibits any of the characteristics of hazardous waste identified in Subpart C of this part. However, any mixture of a waste from the extraction, beneficiation, and processing of ores and minerals excluded under § 261.4(b)(7) and any other solid waste exhibiting a characteristic of hazardous waste under Subpart C is a hazardous waste only if it exhibits a characteristic that would not have been exhibited by the excluded waste alone if such mixture had not occurred, or if it continues to exhibit any of the characteristics exhibited by the non-excluded wastes prior to mixture. Further, for the purposes of applying the Toxicity Characteristic to such mixtures, the mixture is also a hazardous waste if it exceeds the maximum concentration for any contaminant listed in table I to §

1. 261.24 that would not have been exceeded by the excluded waste alone if the

   mixture had not occurred or if it continues to exceed the maximum concentration for any contaminant exceeded by the nonexempt waste prior to mixture.

(ii) It is listed in Subpart D and has not been excluded from the lists in Subpart D under § §260.20 and 260.22.

(iii) Reserved (iv) It is a mixture of solid waste and one or more hazardous wastes listed in Subpart D and has not been excluded from paragraph (a)(2) of this section under § §

1. 260.20 and 260.22, or paragraph (g) of this section; however, the following

   mixtures of solid wastes and hazardous wastes listed in Subpart D of this part are not hazardous wastes (except by application of paragraph (a)(2)(i) or (ii) of this section) if the generator can demonstrate that the mixture consists of wastewater the discharge of which is subject to regulation under either Section 402 or Section 307(b) of the Clean Water Act (including wastewater at facilities which have eliminated the discharge of wastewater) and:

2. (A) One or more of the following spent solvents listed in § 261.31 - carbon tetrachloride, tetrachloroethylene, trichloroethylene - provided that the maximum total weekly usage of these solvents (other than the amounts that can be demonstrated not to be discharged to wastewater) divided by the average weekly flow of wastewater into the headworks of the facility's wastewater treatment or pre-treatment system does not exceed 1 part per million; or (B) One or more of the following spent solvents listed in § 261.31 - methylene chloride, 1,1,1-trichloroethane, chlorobenzene, o-dichlorobenzene, cresols, cresylic acid, nitrobenzene, toluene, methyl ethyl ketone, carbon disulfide, isobutanol, pyridine, spent chlorofluorocarbon solvents - provided that the maximum total weekly usage of these solvents (other than the amounts that can be demonstrated not to be discharged to wastewater) divided by the average weekly flow of wastewater into the headworks of the facility's wastewater treatment or pre-treatment system does not exceed 25 parts per million; or (C) One of the following wastes listed in § 261.32, provided that the wastes are discharged to the refinery oil recovery sewer before primary oil/water/solids separation - heat exchanger bundle cleaning sludge from the petroleum refining industry (EPA Hazardous Waste No. K050), crude oil storage tank sediment from petroleum refining operations (EPA Hazardous Waste No. K169), clarified slurry oil tank sediment and/or in- line filter/separation solids from petroleum refining operations (EPA Hazardous Waste No. K170), spent hydrotreating catalyst (EPA Hazardous Waste No. K171), and spent hydrorefining catalyst (EPA Hazardous Waste No. K172); or (D) A discarded commercial chemical product, or chemical intermediate listed in § 261.33, arising from de minimis losses of these materials from manufacturing operations in which these materials are used as raw materials or are produced in the manufacturing process. For purposes of this sub-paragraph, “de minimis” losses include those from normal material handling operations (e.g. spills from the unloading or transfer of materials from bins or other containers, leaks from pipes, valves or other devices used to transfer materials); minor leaks of process equipment; storage tanks or containers; leaks from well maintained pump packings and seals; sample purgings; relief device discharges; discharges from safety showers and rinsing and cleaning of personal safety equipment; and rinsate from empty containers or from containers that are rendered empty by that rinsing; or (E) Wastewater resulting from laboratory operations containing toxic (T) wastes listed in Subpart D, provided that the annualized average flow of laboratory wastewater does not exceed one percent of total wastewater flow into the headworks of the facility's wastewater treatment or pre- treatment system, or provided the wastes, combined annualized average concentration does not exceed one part per million in the headworks of the facility's wastewater treatment or pretreatment facility. Toxic (T) wastes used in laboratories that are demonstrated not to be discharged to wastewater are not to be included in this calculation; or (F) One or more of the following wastes listed in § 261.32 -- wastewaters from the production of carbamates and carbamoyl oximes (EPA Hazardous Waste No. K157)--Provided that the maximum weekly usage of formaldehyde, methyl chloride, methylene chloride, and triethylamine (including all amounts that can not be demonstrated to be reacted in the process, destroyed through treatment, or is recovered, i.e., what is discharged or volatilized) divided by the average weekly flow of process wastewater prior to any dilutions into the headworks of the facility's wastewater treatment system does not exceed a total of 5 parts per million by weight; or (G) Wastewaters derived from the treatment of one or more of the following wastes listed in § 261.32 -- organic waste (including heavy ends, still bottoms, light ends, spent solvents, filtrates, and decantates) from the production of carbamates and carbamoyl oximes (EPA Hazardous Waste
   1. No. K156)--Provided, that the maximum concentration of formaldehyde, methyl chloride, methylene chloride, and triethylamine prior to any dilutions into the headworks of the facility's wastewater treatment system does not exceed a total of 5 milligrams per liter.

(v) Rebuttable presumption for used oil . Used oil containing more than 1000 ppm total halogens is presumed to be a hazardous waste because it has been mixed with halogenated hazardous waste listed in Subpart D of Part 261 of these regulations. Persons may rebut this presumption by demonstrating that the used oil does not contain hazardous waste (for example, by using an analytical method from SW-846, Third Edition, to show that the used oil does not contain significant concentrations of halogenated hazardous constituents listed in Appendix VIII of Part 261 of these regulations). EPA Publication SW-846, Third Edition, is available from the Government Printing Office, Superintendent of Documents, PO Box 371954, Pittsburgh, PA 15250-7954. 202-512-1800 (document number 955-001-00000-1). This document is also available for review at the Colorado Department of Public Health and Environment (See § 260.2(b)) and the State Publications Depository Libraries.

1. (A) The rebuttable presumption does not apply to metalworking oils/fluids containing chlorinated paraffins, if they are processed, through a tolling agreement, to reclaim metalworking oils/fluids. The presumption does apply to metalworking oils/fluids if such oils/fluids are recycled in any other manner, or disposed.
2. (B) The rebuttable presumption does not apply to used oils contaminated with chlorofluorocarbons (CFCs) removed from refrigeration units where the CFCs are destined for reclamation. The rebuttable presumption does apply to used oils contaminated with CFCs that have been mixed with used oil from sources other than refrigeration units.

(b) A solid waste which is not excluded from regulation under paragraph (a)(1) of this section becomes a hazardous waste when any of the following events occur:

(1) In the case of a waste listed in Subpart D, when the waste first meets the listing description set forth in Subpart D.

(2) In the case of a mixture of solid waste and one or more listed hazardous wastes, when a hazardous waste listed in Subpart D is first added to the solid waste.

(3) In the case of any other waste (including a waste mixture), when the waste exhibits any of the characteristics identified in Subpart C.

(c) Unless and until it meets the criteria of paragraph (d):

(1) A hazardous waste will remain a hazardous waste.

(2)(i) Except as otherwise provided in paragraph (c)(2)(ii) or (g) of this section, any solid waste generated from the treatment, storage, or disposal of a hazardous waste, including any sludge, spill residue, ash, emission control dust, or leachate (but not including precipitation run-off) is a hazardous waste. (However, materials that are reclaimed from solid wastes and that are used beneficially are not solid wastes and hence are not hazardous wastes under this provision unless the reclaimed material is burned for energy recovery or used in a manner constituting disposal).

(ii) The following solid wastes are not hazardous even though they are generated from the treatment, storage, or disposal of a hazardous waste, unless they exhibit one or more of the characteristics of hazardous waste:

1. (A) Waste pickle liquor sludge generated by lime stabilization of spent pickle liquor from the iron and steel industry (SIC Codes 331 and 332) (B) Wastes from burning any of the materials exempted from regulation by § 261.6(a)(3)(iii)and(iv).

   (C)(1) Nonwastewater residues, such as slag, resulting from high temperature metals recovery (HTMR) processing of K061, K062, or F006 waste, in units identified as rotary kilns, flame reactors, electric furnaces, plasma arc furnaces, slag reactors, rotary hearth furnace/electric furnace combinations or industrial furnaces (as defined in § 260.10), that are disposed in subtitle D units, provided that these residues meet the generic exclusion levels identified in the tables in this paragraph, for all constituents, and exhibit no characteristics of hazardous waste. Testing requirements must be incorporated in a facility's waste analysis plan or a generator's self-implementing waste analysis plan; at a minimum, composite samples of residues must be collected and analyzed quarterly and/or when the process or operation generating the waste changes. Persons claiming this exclusion will have the burden of proof that the material meets all of the exclusion requirements.

   1. (2) A one-time notification and certification must be placed in the facility's files and sent to the Department for K061, K062, or F006 HTMR residues that meet the generic exclusion levels for all constituents and do not exhibit any characteristics that are sent to subtitle D units. The notification and certification that is placed in the generator's or treater's files must be updated if the process or operation generating the waste changes and/or if the subtitle D unit receiving the waste changes. However, the generator or treater need only notify the Department on an annual basis if such changes occur. Such notification and certification should be sent to the Department by the end of the calendar year, but no later than December 31. The notification must include the following information: The name and address of the subtitle D unit receiving the waste shipments; the EPA Hazardous Waste Number(s) and treatability group(s) at the initial point of generation; and, the treatment standards applicable to the waste at the initial point of generation. The certification must be signed by an authorized representative and must state as follows: “I certify under penalty of law that the generic exclusion levels for all constituents have been met without impermissible dilution and that no characteristic of hazardous waste is exhibited. I am aware that there are significant penalties for submitting a false certification, including the possibility of fine and imprisonment.”
2. (D) Biological treatment sludge from the treatment of one of the following wastes listed in § 261.32 - organic waste (including heavy ends, still bottoms, light ends, spent solvents, filtrates, and decantates) from the production of carbamates and carbamoyl oximes (EPA Hazardous Waste No. K156), and wastewaters from the production of carbamates and carbamoyl oximes (EPA Hazardous Waste No. K157).
3. (E) Catalyst inert support media separated from one of the following wastes listed in § 261.32 - Spent hydrotreating catalyst (EPA Hazardous Waste No. K171), and Spent hydrorefining catalyst (EPA Hazardous Waste No. K172).

(d) Any solid waste described in paragraph (c) of this section is not a hazardous waste if it meets the following criteria:

(1) In the case of any solid waste, it does not exhibit any of the characteristics of hazardous waste identified in Subpart C of this part. (However, wastes that exhibit a characteristic at the point of generation may still be subject to the requirements of Part 268, even if they no longer exhibit a characteristic at the point of land disposal.) (2) In the case of a waste which is a listed waste under Subpart D, contains a waste listed under Subpart D or is derived from a waste listed in Subpart D, it also has been excluded from paragraph (c) under § § 260.20 and 260.22.

(e) Any material which would be a hazardous waste subject to the provisions of these regulations except for the fact that it has commercial use or value is subject to regulations pursuant to § 261.6 of these regulations.

(f) Notwithstanding paragraphs (a) through (d) of this section and provided the debris as defined in Part 268 of these regulations does not exhibit a characteristic identified at Subpart C of this part, the following materials are not subject to regulation under Parts 260, 261 to 267, 268, or 100:

(1) Hazardous debris as defined in Part 268 of these regulations that has been treated using one of the required extraction or destruction technologies specified in Table 1 of § 268.45 of these regulations; persons claiming this exclusion in an enforcement action will have the burden of proving by clear and convincing evidence that the material meets all of the exclusion requirements; or (2) Debris as defined in Part 268 of these regulations that the Director, considering the extent of contamination, has determined is no longer contaminated with hazardous waste. (g)(1) A hazardous waste that is listed in Subpart D of this part solely because it exhibits one or more characteristics of ignitability as defined under § 261.21, corrosivity as defined under § 261.22, or reactivity as defined under § 261.23 is not a hazardous waste, if the waste no longer exhibits any characteristic of hazardous waste identified in Subpart C of this part.

(2) The exclusion described in paragraph (g)(1) of this section also pertains to:

(i) Any mixture of a solid waste and a hazardous waste listed in Subpart D of this part solely because it exhibits the characteristics of ignitability, corrosivity, or reactivity as regulated under paragraph (a)(2)(iv) of this section; and (ii) Any solid waste generated from treating, storing, or disposing of a hazardous waste listed in Subpart D of this part solely because it exhibits the characteristics of ignitability, corrosivity, or reactivity as regulated under paragraph (c)(2)(i) of this section.

(3) Wastes excluded under this section are subject to Part 268 of these regulations (as applicable), even if they no longer exhibit a characteristic at the point of land disposal.

(4) Any mixture of a solid waste excluded from regulation under § 261.4(b)(7) and a hazardous waste listed in subpart D of this part solely because it exhibits one or more of the characteristics of ignitability, corrosivity, or reactivity as regulated under paragraph (a)(2) (iv) of this section is not a hazardous waste, if the mixture no longer exhibits any characteristic of hazardous waste identified in Subpart C of this part for which the hazardous waste listed in Subpart D of this part was listed.

(h) Reserved § 261.4 Exclusions.

(a) Materials which are not solid wastes. The following materials are not solid wastes for the purpose of this Part:

(1)(i) Domestic sewage; and (ii) Any mixture of domestic sewage and other wastes that passes through a sewer system to a publicly-owned treatment works for treatment. “Domestic sewage” means untreated sanitary wastes that pass through a sewer system.

(2) Industrial wastewater discharges that are point source discharges subject to regulation under Section 402 of the Clean Water Act, as amended.

(3) Irrigation return flows.

(4) Source, special nuclear or by-product material as defined by the Atomic Energy Act of 1954, as amended, 42 U.S.C. 2011 et seq.

(5) Materials subjected to in-situ mining techniques which are not removed from the ground as part of the extraction process.

(6) Inert materials deposited for construction fill or topsoil placement in connection with actual or contemplated construction at such location or for changes in land contour for agricultural and mining purposes, if such depositing does not fall within the definition of treatment, storage, or disposal of hazardous waste.

(7) Pulping liquors (i.e., black liquor) that are reclaimed in a pulping liquor recovery furnace and then reused in the pulping process, unless it is accumulated speculatively as defined in § 261.1(c) of these regulations;

(8) Secondary materials that are reclaimed and returned to the original process or processes in which they were generated where they are reused in the production process provided:

(i) Only tank storage is involved, and the entire process through completion of reclamation is closed by being entirely connected with pipes or other comparable enclosed means of conveyance;

(ii) Reclamation does not involve controlled flame combustion (such as occurs in boilers, industrial furnaces, or incinerators);

(iii) The secondary materials are never accumulated in such tanks for over twelve months without being reclaimed; and (iv) The reclaimed material is not used to produce a fuel, or used to produce products that are used in a manner constituting disposal.

(9) Spent sulfuric acid used to produce virgin sulfuric acid, unless it is accumulated speculatively as defined in § 261.1(c) of these regulations.

(10)(i) Spent wood preserving solutions that have been used and are reclaimed and are reused for their original intended purpose; and (ii) Wastewaters from the wood preserving process that have been reclaimed and are reused to treat wood.

(iii) Prior to reuse, the wood preserving wastewaters and spent wood preserving solutions described in paragraphs (a)(10)(i) and (a)(10)(ii) of this section, so long as they meet all of the following conditions:

1. (A) The wood preserving wastewaters and spent wood preserving solutions are reused on-site at water borne plants in the production process for their original intended purpose;
2. (B) Prior to reuse, the wastewaters and spent wood preserving solutions are managed to prevent release to either land or groundwater or both;
3. (C) Any unit used to manage wastewaters and/or spent wood preserving solutions prior to reuse can be visually or otherwise determined to prevent such releases;
4. (D) Any drip pad used to manage the wastewaters and/or spent wood preserving solutions prior to reuse complies with the standards in Part 265, Subpart W of these regulations, regardless of whether the plant generates a total of less than 100 kg/month of hazardous waste; and (E) Prior to operating pursuant to this exclusion, the plant owner or operator prepares a one-time notification stating that the plant intends to claim the exclusion, giving the date on which the plant intends to begin operating under the exclusion, and containing the following language: “I have read the applicable regulation establishing an exclusion for wood preserving wastewaters and spent wood preserving solutions and understand it requires me to comply at all times with the conditions set out in the regulation.” The plant must maintain a copy of that document in its on- site records until closure of the facility. The exclusion applies only so long as the plant meets all of the conditions. If the plant goes out of compliance with any condition, it may apply to the appropriate Regional Administrator or State Director for reinstatement. The Regional Administrator or State Director may reinstate the exclusion upon finding that the plant has returned to compliance with all conditions and that violations are not likely to recur. [Eff 07/01/2007]

(11) EPA Hazardous Waste Nos. K060, K087, K141, K142, K143, K144, K145, K147, and K148, and any wastes from the coke by-products processes that are hazardous only because they exhibit the Toxicity Characteristic (TC) specified in § 261.24 of this part, when, subsequent to generation, these materials are recycled to coke ovens, to the tar recovery process as a feedstock to produce coal tar, or mixed with coal tar prior to the sale or refining of the tar. This exclusion is conditioned on there being no land disposal of the wastes from the point at which they are generated to the point at which they are recycled to coke ovens or tar recovery or refining processes, or mixed with coal tar.

(12) Nonwastewater splash condenser dross residue from the treatment of K061 in high temperature metals recovery units, provided it is shipped in drums (if shipped) and not land disposed before recovery.

(13)(i) Oil-bearing hazardous secondary materials (i.e., sludges, byproducts, or spent materials) that are generated at a petroleum refinery (SIC code 2911) and are inserted into the petroleum refining process (SIC code 2911-including, but not limited to, distillation, catalytic cracking, fractionation, or thermal cracking units (i.e., cokers)) unless the material is placed on the land, or speculatively accumulated before being so recycled. Materials inserted into thermal cracking units are excluded under this paragraph, provided that the coke product also does not exhibit a characteristic of hazardous waste. Oil-bearing hazardous secondary materials may be inserted into the same petroleum refinery where they are generated, or sent directly to another petroleum refinery, and still be excluded under this provision. Except as provided in paragraph (a)(13)(ii) of this section, oil-bearing hazardous secondary materials generated elsewhere in the petroleum industry (i.e., from sources other than petroleum refineries) are not excluded under this section. Residuals generated from processing or recycling materials excluded under this paragraph (a)(13)(i), where such materials as generated would have otherwise met a listing under Subpart D of this part, are designated as F037 listed wastes when disposed of or intended for disposal.

(ii) Recovered oil that is recycled in the same manner and with the same conditions as described in paragraph (a)(13)(i) of this section. Recovered oil is oil that has been reclaimed from secondary materials (including wastewater) generated from normal petroleum industry practices, including refining, exploration and production, bulk storage, and transportation incident thereto (SIC codes 1311, 1321, 1381, 1382, 1389, 2911, 4612, 4613, 4922, 4923, 4789, 5171, and 5172.) Recovered oil does not include oil-bearing hazardous wastes listed in Subpart D of this part; however, oil recovered from such wastes may be considered recovered oil. Recovered oil does not include used oil as defined in § 279.1 of these regulations.

(14) Excluded scrap metal (processed scrap metal, unprocessed home scrap metal, and unprocessed prompt scrap metal) being recycled.

(15) Shredded circuit boards being recycled provided that they are:

(i) Stored in containers sufficient to prevent a release to the environment prior to recovery; and (ii) Free of mercury switches, mercury relays and nickel-cadmium batteries and lithium batteries.

(16) Reserved (17) Spent materials (as defined in § 261.1) (other than hazardous wastes listed in Subpart D of this part) generated within the primary mineral processing industry from which minerals, acids, cyanide, water or other values are recovered by mineral processing or by beneficiation, provided that:

(i) The spent material is legitimately recycled to recover minerals, acids, cyanide, water or other values;

(ii) The spent material is not accumulated speculatively;

(iii) Except as provided in paragraph (a)(17)(iv) of this section, the spent material is stored in tanks, containers, or buildings meeting the following minimum integrity standards: a building must be an engineered structure with a floor, walls, and a roof all of which are made of non-earthen materials providing structural support (except smelter buildings may have partially earthen floors provided the spent material is stored on the non-earthen portion), and have a roof suitable for diverting rainwater away from the foundation; a tank must be free standing, not be a surface impoundment (as defined in § 260.10 of these regulations), and be manufactured of a material suitable for containment of its contents; a container must be free standing and be manufactured of a material suitable for containment of its contents. If tanks or containers contain any particulate which may be subject to wind dispersal, the owner/operator must operate these units in a manner which controls fugitive dust. Tanks, containers, and buildings must be designed, constructed and operated to prevent significant releases to the environment of these materials.

(iv) The Regional Administrator or the State Director may make a site-specific determination, after public review and comment, that only solid mineral processing spent material may be placed on pads, rather than in tanks, containers, or buildings. Solid mineral processing spent materials do not contain any free liquid. The decision-maker must affirm that pads are designed, constructed and operated to prevent significant releases of the spent material into the environment. Pads must provide the same degree of containment afforded by the non-RCRA tanks, containers and buildings eligible for exclusion.

1. (A) The decision-maker must also consider if storage on pads poses the potential for significant releases via groundwater, surface water, and air exposure pathways. Factors to be considered for assessing the groundwater, surface water, air exposure pathways are: the volume and physical and chemical properties of the spent material, including its potential for migration off the pad; the potential for human or environmental exposure to hazardous constituents migrating from the pad via each exposure pathway, and the possibility and extent of harm to human and environmental receptors via each exposure pathway.
2. (B) Pads must meet the following minimum standards: be designed of non- earthen material that is compatible with the chemical nature of the mineral processing spent material, capable of withstanding physical stresses associated with placement and removal, have run on/runoff controls, be operated in a manner which controls fugitive dust, and have integrity assurance through inspections and maintenance programs.
3. (C) Before making a determination under this paragraph, the Regional Administrator or State Director must provide notice and the opportunity for comment to all persons potentially interested in the determination. This can be accomplished by placing notice of this action in major local newspapers, or broadcasting notice over local radio stations.

(v) The owner or operator provides notice to the Regional Administrator or State Director, providing the following information: the types of materials to be recycled; the type and location of the storage units and recycling processes; and the annual quantities expected to be placed in land-based units. This notification must be updated when there is a change in the type of materials recycled or the location of the recycling process.

(vi) For purposes of § 261.4(b)(7) of this section, mineral processing spent material must be the result of mineral processing and may not include any listed hazardous wastes. Listed hazardous wastes and characteristic hazardous wastes generated by non-mineral processing industries are not eligible for the conditional exclusion from the definition of solid waste.

(18) Petrochemical recovered oil from an associated organic chemical manufacturing facility, where the oil is to be inserted into the petroleum refining process (SIC code 2911) along with normal petroleum refinery process streams, provided:

(i) The oil is hazardous only because it exhibits the characteristic of ignitability (as defined in § 261.21) and/or toxicity for benzene ( § 261.24, waste code D018); and (ii) The oil generated by the organic chemical manufacturing facility is not placed on the land, or speculatively accumulated before being recycled into the petroleum refining process. An “associated organic chemical manufacturing facility” is a facility where the primary SIC code is 2869, but where operations may also include SIC codes 2821,2822, and 2865; and is physically co-located with a petroleum refinery; and where the petroleum refinery to which the oil being recycled is returned also provides hydrocarbon feedstocks to the organic chemical manufacturing facility. “Petrochemical recovered oil” is oil that has been reclaimed from secondary materials (i.e., sludges, byproducts, or spent materials, including wastewater) from normal organic chemical manufacturing operations, as well as oil recovered from organic chemical manufacturing processes.

(19) Spent caustic solutions from petroleum refining liquid treating processes used as a feedstock to produce cresylic or naphthenic acid unless the material is placed on the land, or accumulated speculatively as defined in § 261.1(c).

(20) Hazardous secondary materials used to make zinc fertilizers, provided that the following conditions specified are satisfied:

(i) Hazardous secondary materials used to make zinc micronutrient fertilizers must not be accumulated speculatively, as defined in § 261.1(d)(8).

(ii) Generators and intermediate handlers of zinc-bearing hazardous secondary materials that are to be incorporated into zinc fertilizers must:

1. (A) Submit a one-time notice to the Regional Administrator or State Director in whose jurisdiction the exclusion is being claimed, which contains the name, address and EPA ID number of the generator or intermediate handler facility, provides a brief description of the secondary material that will be subject to the exclusion, and identifies when the manufacturer intends to begin managing excluded, zinc-bearing hazardous secondary materials under the conditions specified in this paragraph (a)(20).
2. (B) Store the excluded secondary material in tanks, containers, or buildings that are constructed and maintained in a way that prevents releases of the secondary materials into the environment At a minimum, any building used for this purpose must be an engineered structure made of non- earthen materials that provide structural support, and must have a floor, walls and a roof that prevent wind dispersal and contact with rainwater. Tanks used for this purpose must be structurally sound and, if outdoors, must have roofs or covers that prevent contact with wind and rain. Containers used for this purpose must be kept closed except when it is necessary to add or remove material, and must be in sound condition. Containers that are stored outdoors must be managed within storage areas that:
   1. (1) have containment structures or systems sufficiently impervious to contain leaks, spills and accumulated precipitation; and (2) provide for effective drainage and removal of leaks, spills and accumulated precipitation; and (3) prevent run-on into the containment system.
3. (C) With each off-site shipment of excluded hazardous secondary materials, provide written notice to the receiving facility that the material is subject to the conditions of this paragraph (a)(20).
4. (D) Maintain at the generator's or intermediate handlers's facility for no less than three years records of all shipments of excluded hazardous secondary materials. For each shipment these records must at a minimum contain the following information:
   1. (1) Name of the transporter and date of the shipment;
   2. (2) Name and address of the facility that received the excluded material, and documentation confirming receipt of the shipment; and (3) Type and quantity of excluded secondary material in each shipment.

(iii) Manufacturers of zinc fertilizers or zinc fertilizer ingredients made from excluded hazardous secondary materials must:

1. (A) Store excluded hazardous secondary materials in accordance with the storage requirements for generators and intermediate handlers, as specified in paragraph (a)(20)(ii)(B) of this section.
2. (B) Submit a one-time notification to the Regional Administrator or State Director that, at a minimum, specifies the name, address and EPA ID number of the manufacturing facility, and identifies when the manufacturer intends to begin managing excluded, zinc-bearing hazardous secondary materials under the conditions specified in this paragraph (a)(20).
3. (C) Maintain for a minimum of three years records of all shipments of excluded hazardous secondary materials received by the manufacturer, which must at a minimum identify for each shipment the name and address of the generating facility, name of transporter and date the materials were received, the quantity received, and a brief description of the industrial process that generated the material.
4. (D) Submit to the Regional Administrator or State Director an annual report that identifies the total quantities of all excluded hazardous secondary materials that were used to manufacture zinc fertilizers or zinc fertilizer ingredients in the previous year, the name and address of each generating facility, and the industrial process(s) from which they were generated.

(iv) Nothing in this section preempts, overrides or otherwise negates the provision in §

1. 262.11 of these regulations, which requires any person who generates a solid

   waste to determine if that waste is a hazardous waste.

(v) Interim status and permitted storage units that have been used to store only zinc- bearing hazardous wastes prior to the submission of the one-time notice described in paragraph (a)(20)(ii)(A) of this section, and that afterward will be used only to store hazardous secondary materials excluded under this paragraph, are not subject to the closure requirements of Parts 264 and 265 of these regulations.

(21) Zinc fertilizers made from hazardous wastes, or hazardous secondary materials that are excluded under paragraph (a)(20) of this section, provided that:

(i) The fertilizers meet the following contaminant limits:

1. (A) For metal contaminants:

Metal Constituent Maximum allowable total concentration in fertilizer, per unit (1%) of zinc content Arsenic............................. 0.3 ppm ............

Cadmium.......................... 1.4 ppm ............

Chromium........................ 0.6 ppm ............

Lead.................................. 2.8 ppm ............

Mercury............................ 0.3 ppm ............

1. (B) For dioxin contaminants the fertilizer must contain no more than eight (8) parts per trillion of dioxin, measured as toxic equivalent (TEQ).

(ii) The manufacturer performs sampling and analysis of the fertilizer product to determine compliance with the contaminant limits for metals no less than every six months, and for dioxins no less than every twelve months. Testing must also be performed whenever changes occur to manufacturing processes or ingredients that could significantly affect the amounts of contaminants in the fertilizer product. The manufacturer may use any reliable analytical method to demonstrate that no constituent of concern is present in the product at concentrations above the applicable limits. It is the responsibility of the manufacturer to ensure that the sampling and analysis are unbiased, precise, and representative of the product(s) introduced into commerce.

(iii) The manufacturer maintains for no less than three years records of all sampling and analyses performed for purposes of determining compliance with the requirements of paragraph (a)(21)(ii) of this section. Such records must at a minimum include:

1. (A) The dates and times product samples were taken, and the dates the samples were analyzed;
2. (B) The names and qualifications of the person(s) taking the samples;
3. (C) A description of the methods and equipment used to take the samples;
4. (D) The name and address of the laboratory facility at which analyses of the samples were performed;
5. (E) A description of the analytical methods used, including any cleanup and sample preparation methods; and (F) All laboratory analytical results used to determine compliance with the contaminant limits specified in this paragraph (a)(21).

(b) Solid wastes which are not hazardous wastes. The following solid wastes are not hazardous wastes:

(1) Household waste, including household waste that has been collected, transported, stored, treated, disposed, recovered (e.g., refuse-derived fuel) or reused. “Household waste” means any waste material (including garbage, trash and sanitary wastes in septic tanks) derived from households (including single and multiple residences, hotels and motels, bunkhouses, ranger stations, crew quarters, campground, picnic grounds and day-use recreation areas.) A resource recovery facility managing municipal solid waste shall not be deemed to be treating, storing, disposing of, or otherwise managing hazardous wastes for purposes of regulation under this subtitle, if such facility:

(i) Receives and burns only

1. (A) Household waste (from single and multiple dwellings, hotels, motels, and other residential sources) and (B) Solid waste from commercial or industrial sources that does not contain hazardous waste; and

(ii) Such facility does not accept hazardous wastes and the owner or operator of such facility has established contractual requirements or other appropriate notification or inspection procedures to assure that hazardous wastes are not received at or burned in such facility.

(2) Solid wastes generated by any of the following and which are returned to the soils as fertilizers:

(i) The growing and harvesting of agricultural crops.

(ii) The raising of animals, including animal manures.

(3) Mining overburden returned to the mine site.

(4) Fly ash waste, bottom ash waste, slag waste, and flue gas emission control waste generated primarily from the combustion of coal or other fossil fuels, except as provided by §

264.347 of these regulations for faculties that bum or process hazardous waste.

(5) Drilling fluids, produced waters, and other wastes associated with the exploration, development, or production of crude oil, natural gas or geothermal energy. (6)(i) Wastes which fail the test for the Toxicity Characteristic because chromium is present or are listed in Subpart D due to the presence of chromium, which do not fail the test for the Toxicity Characteristic for any other constituent or are not listed due to the presence or day other constituent, and which do not fail the test for any other characteristic, if it is shown by a waste generator or by waste generators that:

1. (A) The chromium in the waste is exclusively (or nearly exclusively) trivalent chromium; and (B) The waste is generated from an industrial process which uses trivalent chromium exclusively (or nearly exclusively) and the process does not generate hexavalent chromium; and (C) The waste is typically and frequently managed in non-oxidizing environments.

(ii) Specific wastes which meet the standard in paragraphs (b)(6)(i)(A),(B) and (C) (so long as they do not fail the test for the Toxicity Characteristic for any other constituent, and do not exhibit any other characteristic) are:

1. (A) Chrome (blue) trimmings generated by the following subcategories of the leather tanning and finishing industry; hair pulp/chrome tan/retan/wet finish; hair save/chrome tan/retan/wet finish; retan/wet finish; no beamhouse; through-the-blue; and shearling.
2. (B) Chrome (blue) shavings generated by the following subcategories of the leather tanning and finishing industry: hair pulp/chrome tan/retan/wet finish; hair save/chrome tan/retan/wet finish; retan/wet finish; no beamhouse; through-the-blue; and shearling.
3. (C) Buffing dust generated by the following subcategories of the leather tanning and finishing industry, hair pulp/chrome tan/retan/wet finish; hair save/chrome tan/retan/wet finish; retan/wet finish; no beamhouse; through-the-blue.
4. (D) Sewer screenings generated by the following subcategories of the leather tanning and finishing industry: hair pulp/chrome tan/retan/wet finish; hair save/chrome tan/retan/wet finish; retan/wet finish; no beamhouse; through-the-blue; and shearling.
5. (E) Wastewater treatment sludges generated by the following subcategories of the leather tanning and finishing industry, hair pulp/chrome tan/retan/wet finish; hair save/chrome tan/retan/wet finish; retan/wet finish; no beamhouse; through-the-blue; and shearling.
6. (F) Wastewater treatment sludges generated by the following subcategories of the leather tanning and finishing industry: hair pulp/chrome tan/retan/wet finish; hair save/chrome tan/retan/wet finish; and through-the-blue.
7. (G) Waste scrap leather from the leather tanning industry, the shoe manufacturing industry, and other leather product manufacturing industries.
8. (H) Wastewater treatment sludges from the production of TiO pigment using chromium-bearing ores by the chloride process.

(7) Solid waste from the extraction, beneficiation and processing of ores and minerals (including coal, phosphate rock and overburden from the mining of uranium ore), except as provided by § 264.347 of these regulations for facilities that bum or process hazardous waste.

(i) For purposes of § 261.4(b)(7) beneficiation of ores and minerals is restricted to the following activities: crushing; grinding; washing; dissolution; crystallization; filtration; sorting; sizing; drying; sintering; pelletizing; briquetting; calcining to remove water and/or carbon dioxide; roasting, autoclaving, and/or chlorination in preparation for leaching (except where the roasting (and/or autoclaving and/or chlorination)/leaching sequence produces a final or intermediate product that does not undergo further beneficiation or processing); gravity concentration; magnetic separation; electrostatic separation; flotation; ion exchange; solvent extraction; electrowinning; precipitation; amalgamation; and heap, dump, vat, tank, and in situ leaching.

(ii) For the purposes of § 261.4(b)(7), solid waste from the processing of ores and minerals includes only the following wastes as generated:

1. (A) Slag from primary copper processing;
2. (B) Slag from primary lead processing;
3. (C) Red and brown muds from bauxite refining;
4. (D) Phosphogypsum from phosphoric acid production;
5. (E) Slag from elemental phosphorus production;
6. (F) Gasifier ash from coal gasification;
7. (G) Process wastewater from coal gasification;
8. (H) Calcium sulfate wastewater treatment plant sludge from primary copper processing;
9. (I) Slag tailings from primary copper processing;
10. (J) Fluorogypsum from hydrofluoric acid production;
11. (K) Process wastewater from hydrofluoric acid production;
12. (L) Air pollution control dust/sludge from iron blast furnaces;
13. (M) Iron blast furnace slag;
14. (N) Treated residue from roasting/leaching of chrome ore;
15. (O) Process wastewater from primary magnesium processing by the anhydrous process;
16. (P) Process wastewater from phosphoric acid production;
17. (Q) Basic oxygen furnace and open hearth furnace air pollution control dust/sludge from carbon steel production;
18. (R) Basic oxygen furnace and open hearth furnace slag from carbon steel production;
19. (S) Chloride process waste solids from titanium tetrachloride production;
20. (T) Slag from primary zinc processing.

(iii) A residue derived from co-processing mineral processing secondary materials with normal beneficiation raw materials or with normal mineral processing raw materials remains excluded under paragraph (b) of this section if the owner or operator:

1. (A) Processes at least 50 percent by weight normal beneficiation raw materials or normal mineral processing raw materials; and (B) Legitimately reclaims the secondary mineral processing materials.

(8) Cement kiln dust waste, except as provided by § 264.347 of these regulations for facilities that bum or process hazardous waste.

(9) Solid waste which consists of discarded arsenical-treated wood or wood products which fails the test for the Toxicity Characteristic for Hazardous Waste Codes D004 through D017 and which is not a hazardous waste for any other reason if the waste is generated by persons who utilize the arsenical-treated wood and wood products for these materials' intended end use.

(10) Petroleum-contaminated media and debris that fail the test for the Toxicity Characteristic of § 261.24 (Hazardous Waste Codes D018 through D043 only) and are subject to the corrective action regulations under 40 CFR Part 280.

(11) RESERVED (12) Used chlorofluorocarbon refrigerants from totally enclosed heat transfer equipment, including mobile air conditioning systems, mobile refrigeration, and commercial and industrial air conditioning and refrigeration systems that use chlorofluorocarbons as the heat transfer fluid in a refrigeration cycle, provided the refrigerant is reclaimed for further use.

(13) Non-terne plated used oil filters that are not mixed with wastes listed in Subpart D of this part if these oil filters have been gravity hot-drained using one of the following methods:

(i) Puncturing the filter anti-drain back valve or the filter dome end and hot-draining;

(ii) Hot-draining and crushing;

(iii) Dismantling and hot-draining; or (iv) Any other equivalent hot-draining method which will remove used oil.

(14) Used oil re-refining distillation bottoms that are used as feedstock to manufacture asphalt products.

(15) Leachate or gas condensate collected from landfills where certain solid wastes have been disposed, provided that:

(i) The solid wastes disposed would meet one or more of the listing descriptions for Hazardous Waste Codes K169, K170, K171, K172, K174, K175, K176, K177, K178 and K181 if these wastes had been generated after the effective date of the listing;

(ii) The solid wastes described in paragraph (b)(15)(i) of this section were disposed prior to the effective date of the listing;

(iii) The leachate or gas condensate do not exhibit any characteristic of hazardous waste nor are derived from any other listed hazardous waste;

(iv) Discharge of the leachate or gas condensate, including leachate or gas condensate transferred from the landfill to a POTW by truck, rail, or dedicated pipe, is subject to regulation under sections 307(b) or 402 of the Clean Water Act.

(v) As of February 13, 2001, leachate or gas condensate derived from K169-K172 is no longer exempt if it is stored or managed in a surface impoundment prior to discharge. As of November 21, 2003, leachate or gas condensate derived from K176, K177, and K178 is no longer exempt if it is stored or managed in a surface impoundment prior to discharge. After February 26, 2007, leachate or gas condensate derived from K181 will no longer be exempt if it is stored or managed in a surface impoundment prior to discharge. There is one exception: if the surface impoundment is used to temporarily store leachate or gas condensate in response to an emergency situation (e.g., shutdown of wastewater treatment system), provided the impoundment has a double liner, and provided the leachate or gas condensate is removed from the impoundment and continues to be managed in compliance with the conditions of this paragraph (b)(15)(v) after the emergency ends.

(c) Hazardous wastes which are exempted from certain regulations. A hazardous waste which is generated in a product or raw material storage tank, a product or raw material transport vehicle or vessel, a product or raw material pipeline, or in a manufacturing process unit or an associated non-waste-treatment-manufacturing unit, is not subject to regulation under Parts 262 through 266, Part 268 and Part 100 or to the notification requirements of Part 99 of these regulations until it exits the unit in which it was generated, unless the unit is a surface impoundment, or unless the hazardous waste remains in the unit more than 90 days after the unit ceases to be operated for manufacturing, or for storage or transportation of product or raw materials.

(d) Samples. (1) Except as provided in paragraph(d)(2) of this section, a sample of solid waste or a sample of water, soil, or air, which is collected for the purpose of testing to determine its characteristics or composition, is not subject to any requirements of this part or Parts 262 through 266, Part 268 or Part 100 or to the notification requirements of Part 99 of these regulations when:

(i) The sample is being transported to a laboratory for the purpose of testing: or (ii) The sample is being transported back to the sample collector after testing; or (iii) The sample is being stored by the sample collector before transport to a laboratory for testing; or (iv) The sample is being stored in a laboratory before testing; or (v) The sample is being stored in a laboratory after testing but before it is returned to the sample collector; or (vi) The sample is being stored temporarily in the laboratory after testing for a specific purpose (for example, until conclusion of a court case or enforcement action where further testing of the sample may be necessary)

(2) In order to qualify for the exemption in paragraph (d)(1)(i) and (ii) of this section, a sample collector shipping samples to a laboratory and laboratory returning samples to a sample collector must:

(i) Comply with U.S. Department of Transportation (DOT), U.S. Postal Service (USPS), or any other applicable shipping requirements; or (ii) Comply with the following requirements if the sample collector determines that DOT, USPS, or other shipping requirements do not apply to the shipment of the sample:

1. (A) Assure that the following information accompanies the sample:
   1. (1) The sample collector's name, mailing address, and telephone number;
   2. (2) The laboratory's name, mailing address, and telephone number;
   3. (3) The quantity of the sample;
   4. (4) The date of shipment; and (5) A description of the sample.
2. (B) Package the sample so that it does not leak, spill, or vaporize from its packaging.

(3) This exemption does not apply if the laboratory determines that the waste is hazardous but the laboratory is no longer meeting any of the conditions stated in paragraph (d)(1) of this section.

(e) Treatability Study Samples.

(1) Except as provided in paragraph (e)(2) of this section, persons who generate or collect samples for the purpose of conducting treatability studies as defined in § 260.10, are not subject to any requirement of Parts 261 through 263 of these regulations or to the notification requirements of Section 99 of the Colorado Hazardous Waste Regulations, nor are such samples included in the quantity determinations of § 261.5 and § 262.34(d) when:

(i) The sample is being collected and prepared for transportation by the generator or sample collector; or (ii) The sample is being accumulated or stored by the generator or sample collector prior to transportation to a laboratory or testing facility; or (iii) The sample is being transported to the laboratory or testing facility for the purpose of conducting a treatability study.

(2) The exemption in paragraph (e)(1) of this section is applicable to samples of hazardous waste being collected and shipped for the purpose of conducting treatability studies provided that:

(i) The generator or sample collector uses (in “treatability studies” ) no more than 10,000 kg of media contaminated with non-acute hazardous waste, 1000 kg of non- acute hazardous waste other than contaminated media, 1 kg of acute hazardous waste, 2500 kg of media contaminated with acute hazardous waste for each process being evaluated for each generated waste stream; and (ii) The mass of each sample shipment does not exceed 10,000 kg; the 10,000 kg quantity may be all media contaminated with non-acute hazardous waste, or may include 2500 kg of media contaminated with acute hazardous waste, 1000 kg of hazardous waste, and 1 kg of acute hazardous waste; and (iii) The sample must be packaged so that it will not leak, spill, or vaporize from its packaging during shipment and the requirements of paragraph A or B of this subparagraph are met.

1. (A) The transportation of each sample shipment complies with U.S. Department of Transportation (DOT), U.S. Postal Service (USPS), or any other applicable shipping requirements; or (B) If the DOT, USPS, or other shipping requirements do not apply to the shipment of the sample, the following information must accompany the sample:
   1. (1) The name, mailing address, and telephone number of the originator of the sample;
   2. (2) The name, address, and telephone number of the facility that will perform the treatability study;
   3. (3) The quantity of the sample;
   4. (4) The date of shipment; and (5) A description of the sample, including its EPA Hazardous Waste Number.

(iv) The sample is shipped to a laboratory or testing facility which is exempt under § 261.4(f) or has an appropriate RCRA permit or interim status.

(v) The generator or sample collector maintains the following records for a period ending 3 years after completion of the treatability study:

1. (A) Copies of the shipping documents;
2. (B) A copy of the contract with the facility conducting the treatability study;
3. (C) Documentation showing:
   1. (1) The amount of waste shipped under this exemption;
   2. (2) The name, address, and EPA identification number of the laboratory or testing facility that received the waste;
   3. (3) The date the shipment was made; and (4) Whether or not unused samples and residues were returned to the generator.

(vi) The generator reports the information required under paragraph (e)(2)(v)(C) of this section in its biennial report.

(3) The Director may grant requests on a case-by-case basis for up to an additional two years for treatability studies involving bioremediation. The Director may grant requests on a case- by-case basis for quantity limits in excess of those specified in paragraphs (e)(2)(i) and (ii) and (f)(4) of this section, for up to an additional 5000 kg of media contaminated with non-acute hazardous waste, 500 kg of non-acute hazardous waste, 2500 kg of media contaminated with acute hazardous waste and 1 kg of acute hazardous waste:

(i) In response to requests for authorization to ship, store and conduct treatability studies on additional quantities in advance of commencing treatability studies. Factors to be considered in reviewing such requests include the nature of the technology, the type of process (e.g., batch versus continuous), size of the unit undergoing testing (particularly in relation to scale-up considerations), the time/quantity of material required to reach steady state operating conditions, or test design considerations such as mass balance calculations.

(ii) In response to requests for authorization to ship, store and conduct treatability studies on additional quantities after initiation or completion of initial treatability studies, when: There has been an equipment or mechanical failure during the conduct of a treatability study, there is a need to verify the results of a previously conducted treatability study, there is a need to study and analyze alternative techniques within a previously evaluated treatment process; or there is a need to do further evaluation of an ongoing treatability study to determine final specifications for treatment.

(iii) The additional quantities and timeframes allowed in paragraph (e)(3)(i) and (ii) of this section are subject to all the provisions in paragraphs (e)(1) and (e)(2) (iii) through (vi) of this section. The generator or sample collector must apply to the Director and provide in writing the following information:

1. (A) The reason why the generator or sample collector requires additional time or quantity of sample for treatability study evaluation and the additional time or quantity needed;
2. (B) Documentation accounting for all samples of hazardous waste from the waste stream which have been sent for or undergone treatability studies including the date each previous sample from the waste stream was shipped, the quantity of each previous shipment; the laboratory or testing facility to which it was shipped, what treatability study processes were conducted on each sample shipped, and the available results on each treatability study;
3. (C) A description of the technical modifications or change in specifications which will be evaluated and the expected results;
4. (D) If such further study is being required due to equipment or mechanical failure, the applicant must include information regarding the reason for the failure or breakdown and also include what procedures or equipment improvements have been made to protect against further breakdowns; and (E) Such other information that the Director considers necessary.

(f) Samples Undergoing Treatability Studies at Laboratories and Testing Facilities. Samples undergoing treatability studies and the laboratory or testing facility conducting such treatability studies (to the extent such facilities are not otherwise subject to Colorado Hazardous Waste Act requirements) are not subject to any requirement of Parts 261 through 268, and Part 100, or to the notification requirements of Part 99 of the Colorado Hazardous Waste Regulations provided that the conditions of paragraphs (f)(1) through (14) of this section are met. A mobile treatment unit (MTU) may qualify as a testing facility subject to paragraphs (f)(1) through (14) of this section. Where a group of MTUs are located at the same site, the limitations specified in (f)(1) through (14) of this section apply to the entire group of MTUs collectively as if the group were one MTU.

(1) No less than 45 days before conducting treatability studies, or receiving samples of hazardous waste to be used in treatability studies, the testing facility submits the following information in writing to the Director, Hazardous Materials and Waste Management Division, Colorado Department of Public Health and Environment:

1. (A) Facility name, location, and mailing address;
2. (B) Facility EPA ID number;
3. (C) Facility contact person, title, and phone;
4. (D) Whether or not the facility has ever submitted a Part A or Part B application;
5. (E) A list of existing environmental permits held by the facility;
6. (F) The general nature of the facility operation;

(2) The laboratory or testing facility conducting the treatability study obtains an EPA identification number prior to receiving waste samples or conducting treatability studies.

(3) No more than a total of 10,000 kg of “as received” media contaminated with non-acute hazardous waste, 2500 kg of media contaminated with acute hazardous waste or 250 kg of other “as received” hazardous waste is subject to initiation of treatment in all treatability studies in any single day. “As received” waste refers to the waste as received in the shipment from the generator or sample collector.

(4) The quantity of “as received” hazardous waste stored at the facility for the purpose of evaluation in treatability studies does not exceed 10,000 kg, the total of which can include 10,000 kg of media contaminated with non-acute hazardous waste, 2500 kg of media contaminated with acute hazardous waste, 1000 kg of non-acute hazardous wastes other than contaminated media, and 1 kg of acute hazardous waste. This quantity limitation does not include treatment materials (including nonhazardous solid waste) added to “as received” hazardous waste.

(5) Storage of waste samples and treatability study residues must meet the following minimum conditions:

(i) Wastes must be stored and managed in a way to prevent any release into the environment and must not pose a human health hazard.

(ii) Any waste material spilled or released must be contained, collected, and disposed of properly within 24 hours.

(iii) Container storage areas must be designed and operated such that:

1. (A) Containers or liners are compatible with the stored waste;
2. (B) Containers are protected from any standing liquids;
3. (C) Containers remain closed except when it is necessary to add or remove waste;
4. (D) Contents of containers which are leaking or in poor condition must be transferred to a container in good condition or otherwise properly managed.

(iv) Tank systems must be designed and operated such that:

1. (A) The tank system integrity is sufficient to ensure that the tank will not leak, collapse, rupture, or fail while containing waste;
2. (B) Any release is detected, contained, collected and removed within 24 hours;
3. (C) Appropriate controls and practices are in place to prevent spills and overflows.

(v) Ignitable and reactive waste must be protected from any material or conditions that may cause the waste to ignite or react.

(vi) Contact between incompatible wastes must be prevented.

(6) No more than 90 days have elapsed since the treatability study for the sample was completed, or no more than one year (two years for treatability studies involving bioremediation) have elapsed since the generator or sample collector shipped the sample to the laboratory or testing facility, whichever date first occurs. Up to 500 kg of treated material from a particular waste stream from treatability studies may be archived for future evaluation up to five years from the date of initial receipt. Quantities of materials archived are counted against the total storage limit for the facility.

(7) The treatability study does not involve the placement of hazardous waste on the land or open burning of hazardous waste.

(8) The facility maintains records for 3 years following completion of each study that show compliance with the treatment rate limits and the storage time and quantity limits. The following specific information must be included for each treatability study conducted:

(i) The name, address, and EPA identification number of the generator and the name of the sample collector of each waste sample;

(ii) The date the shipment was received;

(iii) The quantity of waste accepted;

(iv) The quantity of “as received” waste in storage each day;

(v) The date the treatment study was initiated and the amount of “as received” waste introduced to treatment each day, (vi) The date the treatability study was concluded;

(vii) The date any unused sample or residues generated from the treatability study were returned to the generator or sample collector or, if sent to a designated facility, the name of the facility and the EPA identification number.

(9) The facility keeps, on-site, a copy of the treatability study contract and all shipping papers associated with the transport of treatability study samples to and from the facility for a period ending 3 years from the completion date of each treatability study.

(10) The facility prepares and submits a report to the Director by March 15 of each year that estimates the number of studies and the amount of waste expected to be used in treatability studies during the current year, and includes the following information for the previous calendar year:

(i) The name, address, and EPA identification number of the facility conducting the treatability studies;

(ii) The types (by process) of treatability studies conducted;

(iii) The names and addresses of persons for whom studies have been conducted (including their EPA identification numbers);

(iv) The total quantity of waste in storage each day;

(v) The quantity and types of waste subjected to treatability studies;

(vi) When each treatability study was conducted;

(vii) The final disposition of residues and unused sample from each treatability study;

(viii) A summary of spills or releases of waste material to the environment.

(11) The facility determines whether any unused sample or residues generated by the treatability study are hazardous waste under § 261.3 and, if so, are subject to Parts 261 through 268, and Part 100 of these regulations, and all applicable Federal regulations under HSWA, unless the residues and unused samples are returned to the sample originator under the § 261.4(e) exemption.

(12) The facility notifies the Director by letter when the facility is no longer planning to conduct any treatability studies at the site.

(13) The facility submits a certified statement to the Director specifying that all waste materials from treatability studies have been removed from the facility, and that no contamination remains on-site.

(14) The facility provides adequate personnel training to ensure facility regulatory compliance, effective emergency response, and prevent undue worker exposure to hazardous waste.

(g) Dredged material that is not a hazardous waste. Dredged material that is subject to the requirements of a permit that has been issued under 404 of the Federal Water Pollution Control Act (33 U.S.C.1344) or section 103 of the Marine Protection, Research, and Sanctuaries Act of 1972 (33 U.S.C. 1413) is not a hazardous waste. For this paragraph (g), the following definitions apply:

(1) The term dredged material has the same meaning as defined in 40 CFR 232.2;

(2) The term permit means:

(i) A permit issued by the U.S. Army Corps of Engineers (Corps) or an approved State under section 404 of the Federal Water Pollution Control Act (33 U.S.C. 1344);

(ii) A permit issued by the Corps under section 103 of the Marine Protection, Research, and Sanctuaries Act of 1972 (33 U.S.C. 1413); or (iii) In the case of Corps civil works projects, the administrative equivalent of the permits referred to in paragraphs (g)(2)(i) and (ii) of this section, as provided for in Corps regulations (for example, see 33 CFR 336.1, 336.2, and 337.6). § 261.5 Special Requirements for Hazardous Waste Generated by Conditionally Exempt Small Quantity Generators.

(a) A generator is a conditionally exempt small quantity generator in a calendar month if he/she generates less than 100 kilograms of hazardous waste in that month. (100 kilograms is approximately 220 pounds).

(b)(1) Except as provided in paragraph (b)(2), (b)(4), and (b)(5) of this section, a conditionally exempt small quantity generator's hazardous wastes are not subject to regulation under Parts 262 through 268 and Part 100, and the notification requirements of Part 99 of these regulations, provided the generator complies with the requirements of paragraphs (e), (f), (g), and (j) of this section. [Eff 03/30/2008] (2) A conditionally exempt small quantity generator of 3 gallons or more in a calendar year of hazardous waste codes F001, F002, F004, and/or F005 is subject to the notification requirements of Part 99 and the annual fee requirements of section 262.13. [Eff 01/30/2007] (3) Hazardous waste that is subject to the special requirements of § 261.6(b) is included in the quantity determinations of this section and is subject to the requirements of this section. [Eff 01/30/2007] (4) Conditionally exempt small quantity generators shall comply with § 262.43(b) relating to the self-certification checklist. [Eff 01/30/2007] (5) Conditionally exempt small quantity generators shall comply with § 265.31(a) relating to maintaining and operating their facility to minimize the possibility of a fire, explosion, or any unplanned sudden or non-sudden release of hazardous waste or hazardous waste constituents. [Eff 03/30/2008] (c) When making the quantity determinations of this part and Part 262, the generator must include all hazardous waste that it generates, except hazardous waste that:

(1) Is exempt from regulation under § 261.4(c) through (f), § 261.6(a)(3), § 261.7(a)(1), or § 261.8; or (2) Is managed immediately upon generation only in on-site elementary neutralization units, wastewater treatment units, or totally enclosed treatment facilities as defined in § 260.10; or (3) Is recycled, without prior storage or accumulation, only in an on-site process subject to regulation under § 261.6(c)(2); or (4) Is used oil managed under the requirements of § 261.6(a)(4) and Part 279; or (5) Is spent lead-acid batteries managed under the requirements of Part 267, Subpart G; or (6) Is universal waste managed under § 261.9 and Part 273.

(d) In determining the quantity of hazardous waste he/she generates, a generator need not include:

(1) Hazardous waste when it is removed from on-site storage; or (2) Hazardous waste produced by on-site treatment (including reclamation) of his/her hazardous waste, so long as the hazardous waste that is treated was counted once; or (3) Spent materials that are generated, reclaimed, and subsequently reused on-site, so long as such spent materials have been counted once.

(e) If a generator generates acutely hazardous waste in a calendar month in quantities greater than set forth below, all quantities of that acutely hazardous waste are subject to full regulation under Parts 262 through 268 and Part 100, and the notification requirements of Part 99 of these regulations:

(1) A total of one kilogram of acute hazardous wastes listed in § § 261.31, 261.32, or 261.33(e).

(2) A total of 100 kilograms of any residue or contaminated soil, waste or other debris resulting from the cleanup of a spill, into or on any land or water, of any acute hazardous wastes listed in § § 261.31, 261.32 or 261.33(e).

[Comment: “Full regulation” means those regulations applicable to generators of greater than 1,000 kg of non-acutely hazardous waste in a calendar month.] (f) In order for acute hazardous wastes generated by a generator of acute hazardous wastes in quantities equal to or less than those set forth in paragraph (e)(1) or (e)(2) of this section to be excluded from full regulation under this section, the generator must comply with the following requirements:

(1) Section 262.11 of these regulations;

(2) The generator may accumulate acute hazardous waste on-site. If the generator accumulates at any time acute hazardous wastes in quantities greater than those set forth in paragraph (e)(1) or (e)(2) of this section, all of those accumulated wastes are subject to regulation under Parts 262 to 268, 99 and 100. The time period of § 262.34(a) for accumulation of wastes on-site begins when the accumulated wastes exceed the applicable exclusion limit;

(3) A conditionally exempt small quantity generator may either treat his/her acute hazardous waste in an on-site facility or ensure delivery to an off-site treatment, storage or disposal facility, either of which, if located in the U.S., is:

(i) Permitted under Parts 100 and 264 of these regulations;

(ii) In interim status under Parts 100 and 265 of these regulations;

(iii) Authorized to manage hazardous waste by EPA or a State with a hazardous waste management program approved under 40 CFR Part 271;

(iv) A solid waste landfill specifically authorized by the Department and county pursuant to Section 30-20-101 et seq., C.R.S. to accept acute hazardous waste from a conditionally exempt small quantity generator (** Before disposing of acute hazardous waste in such a manner, check with the Department to see if there are any solid waste landfills specifically authorized to accept the waste.);

(v) A facility which:

1. (A) Beneficially uses or reuses, or legitimately recycles or reclaims its waste; or (B) Treats its wastes prior to beneficial use or reuse, or legitimate recycling or reclamation; or

(vi) For universal waste managed under Part 273 of these regulations, a universal waste handler or destination facility subject to the requirements of Part 273 of these regulations.

(g) In order for hazardous waste generated by a conditionally exempt small quantity generator in quantities of less than 100 kilograms of hazardous waste during a calendar month to be excluded from full regulation under this section, the generator must comply with the following requirements:

(1) Comply with § 262.11 of these regulations;

(2) The conditionally exempt small quantity generator may accumulate hazardous waste on-site. If the generator accumulates at any time more than a total of 1000 kilograms of his/her hazardous wastes, all of those accumulated wastes are subject to regulation under the special provisions of Part 262 applicable to generators of between 100 kg and 1000 kg of hazardous waste in a calendar month as well as the requirements of Parts 263 through 268, 99 and 100 of these regulations. The time period of § 262.34(d) for accumulation of wastes on-site begins for a conditionally exempt small quantity generator when the accumulated wastes exceed 1000 kilograms.

(3) A conditionally exempt small quantity generator may either treat his/her hazardous waste in an on-site facility, or ensure delivery to an off-site treatment, storage or disposal facility, either of which, if located in the U.S., is:

(i) Permitted under Parts 100 and 264 of these regulations;

(ii) In interim status under Parts 100 and 265 of these regulations;

(iii) Authorized to manage hazardous waste by EPA or a State with a hazardous waste management program approved under 40 CFR Part 271;

(iv) A solid waste landfill specifically authorized by the Department and the county pursuant to Section 30-20-101 et seq., C.R.S. to accept hazardous waste from a conditionally exempt small quantity generator (**Before disposing of hazardous waste in such a manner, check with the Department to see if there are any solid waste landfills specifically authorized to accept the waste.);

(v) A facility which:

1. (A) Beneficially uses or re-uses, or legitimately recycles or reclaims its waste; or (B) Treats its waste prior to beneficial use or re-use, or legitimate recycling or reclamation; or

(vi) For universal waste managed under Part 273 of these regulations, a universal waste handler or destination facility subject to the requirements of Part 273 of these regulations.

(h) Hazardous waste subject to the reduced requirements of this section may be mixed with non- hazardous waste and remain subject to these reduced requirements even though the resultant mixture exceeds the quantity limitations identified in this section, unless the mixture meets any of the characteristics of hazardous wastes identified in Subpart C.

(i) If a small quantity generator or any person mixes a solid waste with a hazardous waste that exceeds a quantity exclusion level of this section, the mixture is subject to full regulation.

(j) If a conditionally exempt small quantity generator's wastes are mixed with used oil, the mixture is subject to Part 279 of these regulations if it is destined to be burned for energy recovery. Any material produced from such a mixture by processing, blending, or other treatment is also so regulated if it is destined to be burned for energy recovery. § 261.6 Requirements for Recyclable Materials.

(a)(1) Hazardous wastes that are recycled are subject to the requirements for generators, transporters, and storage facilities of paragraphs (b) and (c) of this section, except for the materials listed in paragraphs (a)(2) and (a)(3) of this section. Hazardous wastes that are recycled will be known as “recyclable materials.”

(2) The following recyclable materials are not subject to the requirements of this section but are regulated under Subparts C through G of Part 267 of these regulations and all applicable provisions in Part 100 of these regulations:

(i) Recyclable materials used in a manner constituting disposal (See Subpart C);

(ii) Hazardous wastes burned for energy recovery in boilers and industrial furnaces that are not regulated under Subpart O of Part 264 or 265 of these regulations (see Subpart D);

(iii) Recyclable materials from which precious metals are reclaimed (see Subpart F);

(iv) Spent lead-acid batteries that are being reclaimed (see Subpart G).

(3) The following recyclable materials are not subject to regulation under Parts 262 through 268 or Part 100 of these regulations, and are not subject to the notification requirements of Part 99 of these regulations:

(i) Industrial ethyl alcohol that is reclaimed except that, unless provided otherwise in an international agreement as specified in § 262.58:

1. (A) A person initiating a shipment for reclamation in a foreign country, and any intermediary arranging for the shipment, must comply with the requirements applicable to a primary exporter in § § 262.53, 262.56 (a)
   1. (1) through (4), (6), and (b), and 262.57, export such materials only upon consent of the receiving country and in conformance with the EPA Acknowledgment of Consent to the shipment to the transporter transporting the shipment for export;
2. (B) Transporters transporting a shipment for export may not accept a shipment if he/she knows the shipment does not conform to the EPA Acknowledgment of Consent, must ensure that a copy of the EPA Acknowledgment of Consent accompanies the shipment and must ensure that it is delivered to the facility designated by the persons initiating the shipment.

(ii) Scrap metal that is not excluded under § 261.4(a)(14);

(iii) Fuels produced from the refining of oil-bearing hazardous wastes along with normal process streams at a petroleum refining facility if such wastes result from normal petroleum refining, production, and transportation practices (this exemption does not apply to fuels produced from oil recovered from oil-bearing hazardous waste, where such recovered oil is already excluded under § 261.4(a)(13); (iv)(A) Hazardous waste fuel produced from oil-bearing hazardous waste from petroleum refining, production, or transportation practices, or produced from oil reclaimed from such hazardous wastes, where such hazardous wastes are reintroduced into a process that does not use distillation or does not produce products from crude oil so long as the resulting fuel meets the used oil specification under §

1. 279.11 of these regulations and so long as no other hazardous wastes are used

   to produce the hazardous waste fuel;

2. (B) Hazardous waste fuel produced from oil-bearing hazardous waste from petroleum refining production, and transportation practices, where such hazardous wastes are reintroduced into a refining process after a point at which contaminants are removed, so long as the fuel meets the used oil fuel specification under § 279.11 of these regulations; and (C) Oil reclaimed from oil-bearing hazardous wastes from petroleum refining, production, and transportation practices, which reclaimed oil is burned as a fuel without reintroduction to a refining process, so long as the reclaimed oil meets the used oil fuel specification under § 279.11 of these regulations.

(4) Used oil that is recycled and is also a hazardous waste solely because it exhibits a hazardous characteristic is not subject to the requirements of Parts 260 through 268 of these regulations, but is regulated under Part 279 of these regulations. Used oil that is recycled includes any used oil which is reused, following its original use, for any purpose (including the purpose for which the oil was originally used). Such term includes, but is not limited to, oil which is re-refined, reclaimed, burned for energy recovery, or reprocessed.

(5) Hazardous waste that is exported to or imported from designated member countries of the Organization for Economic Cooperation and Development (OECD) (as defined in § 262.58(a)(1) of these regulations) for the purpose of recovery is subject to the requirements of Part 262, Subpart H, if it is subject to either the manifesting requirements of Part 262, to the universal waste management standards of 40 CFR Part 273, or to the requirements of Part 273 of these regulations.

(b) Generators and transporters of recyclable materials are subject to the applicable requirements of Parts 262 and 263 of these regulations and the notification requirements of Part 99, except as provided in paragraph (a) of this section.

(c)(1) Owners or operators of facilities that store recyclable materials before they are recycled are regulated under all applicable provisions of Subparts A through L, AA, BB, and CC of Parts 264 and 265, Parts 266 through 268 and Part 100 of these regulations and the notification requirements of Part 99 of these regulations, except as provided in paragraph (a) of this section. (The recycling process itself is exempt from regulation except as provided in § 261.6(d).) (2) Owners or operators of facilities that recycle recyclable materials without storing them before they are recycled are subject to the following requirements, except as provided in paragraph (a) of this section:

(i) Notification requirements of Part 99 of these regulations;

(ii) Sections 265.71 and 265.72 (dealing with the use of the manifest and manifest discrepancies) of these regulations.

(iii) Section 261.6(d) of these regulations.

(d) Owners or operators of facilities subject to RCRA permitting requirements with hazardous waste management units that recycle hazardous wastes are subject to the requirements of subparts AA and BB of Part 264 or 265 of these regulations.

§ 261.7 Residues of Hazardous Waste in Empty Containers. (a)(1) Any hazardous waste remaining in either (i) an empty container or (ii) an inner liner removed from an empty container, as defined in paragraph (b) of this section, is not subject to regulation under Parts 261 through 266, Part 268 or Part 100 or to the notification requirements of Part 99 of these regulations.

(2) Any hazardous waste in either (i) a container that is not empty or (ii) an inner liner removed from a container that is not empty, as defined in paragraph (b) of this section is subject to regulation under Parts 261 through 266, Part 268, and Part 100 of these regulations and the notification requirements of Part 99 of these regulations. (b)(1) A container or an inner liner removed from a container that has held any hazardous waste, except a waste that is a compressed gas or that is identified as an acute hazardous waste listed in § § 261.31, 261.32, or 261.33(e) of these regulations is empty if:

(i) All wastes have been removed that can be removed using the practices commonly employed to remove materials from that type of container, e.g., pouring, pumping, and aspirating, and (ii) No more than 2.5 centimeters (one inch) of residue remain on the bottom of the container or inner liner or, (iii)(A) No more than 3 percent by weight of the total capacity of the container remains in the container or inner liner if the container is less than or equal to 119 gallons in size, or

1. (B) No more than 0.3 percent by weight of the total capacity of the container remains in the container or inner liner if the container is greater than 119 gallons in size.

(2) A container that has held a hazardous waste that is a compressed gas is empty when the pressure in the container approaches atmospheric.

(3) A container or an inner liner removed from a container that has held an acute hazardous waste listed in § § 261.31, 261.32, or 261.33(e) is empty if:

(i) The container or inner liner has been triple rinsed using a solvent capable of removing the commercial chemical product or manufacturing chemical intermediate;

(ii) The container or inner liner has been cleaned by another method that has been shown in the scientific literature, or by tests conducted by the generator, to achieve equivalent removal; or (iii) In the case of a container, the inner liner that prevented contact of the commercial chemical product or manufacturing chemical intermediate with the container, has been removed.

§ 261.8 PCB Wastes Regulated Under Toxic Substance Control Act. The disposal of PCB-containing dielectric fluid and electric equipment containing such fluid authorized for use and regulated under CFR Part 761 and that are hazardous only because they fail the test for the Toxicity Characteristic (Hazardous Waste Codes D018 through DO43 only) are exempt from regulation under Parts 261 through 265, and Parts 268 and 100 of these regulations and CFR Part 124, and the notification requirements of section 3010 of RCRA.

§ 261.9 Requirements for Universal Waste.

(a) The wastes listed in this section are exempt from regulation under Parts 262 through 268, and Part 100 of these regulations except as specified in Part 273 of these regulations and, therefore are not fully regulated as hazardous waste. The wastes listed in this section are subject to regulation under Part 273:

(1) Batteries as described in § 273.2(a) of these regulations;

(2) Pesticides as described in § 273.2(b) of these regulations;

(3) Mercury-containing devices as described in § 273.2(c) of these regulations;

(4) Aerosol cans as described in § 273.2(d) of these regulations;

(5) Lamps as described in § 273.2(e) of these regulations; and (6) Electronic devices and electronic components as described in § 273.2(f) of these regulations. Subpart B - Criteria for Identifying the Characteristics of Hazardous Waste and for Listing Hazardous Waste § 261.10 Criteria for Identifying the Characteristics of Hazardous Waste.

(a) The Department shall identify and define a characteristic of hazardous waste in Subpart C only upon determining that:

(1) A solid waste that exhibits the characteristic may:

(i) Cause, or significantly contribute to, an increase in mortality or an increase in serious irreversible, or incapacitating reversible, illness; or (ii) Pose a substantial present or potential hazard to human health or the environment when it is improperly treated, stored, transported, disposed of or otherwise managed; and (2) The characteristic can be:

(i) Measured by an available standardized test method which is reasonably within the capability of generators of solid waste or private sector laboratories that are available to serve generators of solid waste; or (ii) Reasonably detected by generators of solid waste through their knowledge of their waste.

§ 261.11 Criteria for Listing Hazardous Waste.

(a) The Department shall list a solid waste as a hazardous waste only upon determining that the solid waste meets one of the following criteria:

(1) It exhibits any of the characteristics of hazardous waste identified in Subpart C.

(2) It has been found to be fatal to humans in low doses or, in the absence of data on human toxicity, it has been shown in studies to have an oral LD 50 toxicity (rat) of less than 50 milligrams per kilogram, an inhalation LC 50 toxicity (rat) of less than 2 milligrams per liter, or a dermal LD 50 toxicity (rabbit) of less than 200 milligrams per kilogram or is otherwise capable of causing or significantly contributing to an increase in serious irreversible, or incapacitating reversible, illness. (Waste listed in accordance with these criteria will be designated Acute Hazardous Waste.)

(3) It contains any of the toxic constituents listed in Appendix VIII and after considering the following factors, the Director concludes that the waste is capable of posing a substantial present or potential hazard to human health or the environment when improperly treated, stored, transported or disposed of, or otherwise managed:

(i) The nature of the toxicity presented by the constituent.

(ii) The concentration of the constituent in the waste.

(iii) The potential of the constituent or any toxic degradation product of the constituent to migrate from the waste into the environment under the types of improper management considered in paragraph (a)(3)(vii) of this section.

(iv) The persistence of the constituent or any toxic degradation product of the constituent.

(v) The potential for the constituent or any toxic degradation product of the constituent to degrade into nonharmful constituents and the rate of degradation.

(vi) The degree to which the constituent or any degradation product of the constituent bioaccumulates in ecosystems.

(vii) The plausible types of improper management to which the waste could be subjected.

(viii) The quantities of the waste generated at individual generation sites or on a regional or national basis.

(ix) The nature and severity of the human health and environmental damage that has occurred as a result of the improper management of wastes containing the constituent.

(x) Action taken by other governmental agencies or regulatory programs based on the health or environmental hazard posed by the waste or waste constituent.

(xi) Such other factors as may be appropriate.

Substances will be listed on Appendix VIII only if they have been shown in scientific studies to have toxic, carcinogenic, mutagenic or teratogenic effects on humans or other life forms. (Wastes listed in accordance with these criteria will be designated Toxic wastes.) (b) The Director may list classes or types of solid waste as hazardous waste if he/she has reason to believe that individual wastes, within the class or type of waste, typically or frequently are hazardous under the definition of hazardous waste found in Section 1004(5) of the Act.

(c) The Department will use the criteria for listing specified in this section to establish the exclusion limits referred to in § 261.5(c).

Subpart C - Characteristics of Hazardous Waste § 261.20 General.

(a) A solid waste, as defined in § 261.2, which is not excluded from regulation as a hazardous waste under § 261.4(b), is a hazardous waste if it exhibits any of the characteristics identified in this Subpart.

(b) A hazardous waste which is identified by a characteristic in this Subpart is assigned every EPA Hazardous Waste Number that is applicable as set forth in this Subpart. This number must be used in complying with the notification requirements of Part 99 of these regulations and all applicable recordkeeping and reporting requirements under Parts 262 through 266, Part 268, and Part 100.

(c) For purposes of this Subpart, the Department will consider a sample obtained using any of the applicable sampling methods specified in Appendix I to be a representative sample within the meaning of Part 260.

§ 261.21 Characteristic of Ignitability.

(a) A solid waste exhibits the characteristic of ignitability if a representative sample of the waste has any of the following properties:

(1) It is a liquid, other than an aqueous solution containing less than 24 percent alcohol by volume, and has a flash point less than 60oC (140°F), as determined by a Pensky Martens Closed Cup Tester, using the test method specified in ASTM Standard D 93 79 or D 93 80 (incorporated by reference, see § 260.11), or a Setaflash Closed Cup Tester, using the test method specified in ASTM standard D 3278 78 (incorporated by reference, see § 260.11), or a Miniflash Continuously Closed Cup Tester, using the test method specified in ASTM D- 6450-99 (incorporated by reference, see § 260.11), or as determined by an equivalent test method approved by the Department under the procedures set forth in § § 260.20 and 260.21.

(2) It is not a liquid and is capable, under standard temperature and pressure, of causing fire through friction, absorption of moisture, or spontaneous chemical changes and, when ignited, burns so vigorously and persistently that it creates a hazard.

(3) It is an ignitable compressed gas as defined in 49 CFR § 173.115 and as determined by the test methods described in that regulation or equivalent test methods approved by the Department under § § 260.20 and 260.21.

(4) It is an oxidizer as defined in 49 CFR § 173.127.

(b) A solid waste that exhibits the characteristic of ignitability has the EPA Hazardous Waste Number of D001.

§ 261.22 Characteristic of Corrosivity.

(a) A solid waste exhibits the characteristic of corrosivity if a representative sample of the waste has either of the following properties:

(1) It is aqueous and has a pH less than or equal to 2 or greater than or equal to 12.5, as determined by a pH meter using Method 9040 in “Test Methods for the Evaluation of Solid Waste, Physical/Chemical Methods,” EPA Publication SW-846, as incorporated by reference in § 260.11 of these regulations.

(2) It is a liquid and corrodes steel (SAE 1020) at a rate greater than 6.35 mm (0.250 inch) per year at a test temperature of 55°C (130°F) as determined by the test method specified in NACE (National Association of Corrosion Engineers) Standard TM-01-69 as standardized in “Test Methods for the Evaluation of Solid Waste, Physical/Chemical Methods, “EPA Publication SW-846, as incorporated by reference in § 260.11 of these regulations.

(b) A solid waste that exhibits the characteristic of corrosivity has the EPA Hazardous Waste Number of D002.

§ 261.23 Characteristic of Reactivity.

(a) A solid waste exhibits the characteristic of reactivity if a representative sample of the waste has any of the following properties:

(1) It is normally unstable and readily undergoes violent change without detonating.

(2) It reacts violently with water.

(3) It forms potentially explosive mixtures with water.

(4) When mixed with water, it generates toxic gases, vapors or fumes in a quantity sufficient to present a danger to human health or the environment.

(5) It is a cyanide or sulfide bearing waste which, when exposed to pH conditions between 2 and 12.5 can generate toxic gases, vapors or fumes in a quantity sufficient to present a danger to human health or the environment.

(6) It is capable of detonation or explosive reaction if it is subjected to a strong initiating source or if heated under confinement.

(7) It is readily capable of detonation or explosive decomposition or reaction at standard temperature and pressure.

(8) It is a forbidden explosive as defined in 49 CFR § 173.54, or a Class 1, Division 1.1, 1.2, or

1.3 explosive as defined in 49 CFR § 173.50.

(b) A solid waste that exhibits the characteristic of reactivity, has the EPA Hazardous Waste Number of D003.

§ 261.24 Toxicity Characteristic.

(a) A solid waste (except manufactured gas plant waste) exhibits the characteristic of toxicity if, using the Toxicity Characteristic Leaching Procedure, Test Method 1311 in “Test Methods for Evaluating Solid Waste, Physical/Chemical Methods, EPA Publication SW-846, as incorporated by reference in § 260.11 of these regulations, the extract from a representative sample of the waste contains any of the contaminants listed in Table 1 at a concentration equal to or greater than the respective value given in that Table. Where the waste contains less than 0.5 percent filterable solids, the waste itself, after filtering using the methodology outlined in Method 1311, is considered to be the extract for the purpose of this section.

(b) A solid waste that exhibits the characteristic of toxicity has the EPA Hazardous Waste Number specified in Table 1 which corresponds to the toxic contaminant causing it to be hazardous. Table 1. - Maximum Concentration of Contaminants for the Toxicity Characteristic 1 Contaminant 2 Regulatory Level (mg/L)

EPA – HW No. CAS No.

D004 Arsenic 7440-38-2 5.0 D005 Barium 7440-39-3 100.0 D018 Benzene 71-43-2 0.5 D006 Cadmium 7440-43-9 1.0 D019 Carbon tetrachloride 56-23-5 0.5 D020 Chlordane 57-74-9 0.03 D021 Chlorobenzene 108-90-7 100.0 D022 Chloroform 67-66-3 6.0 D007 Chromium 7440-47-3 5.0 D023 o-Cresol 95-48-7 4

1. 200.0

D024 m-Cresol 108-39-4 4

1. 200.0

D025 p-Cresol 106-44-5 4

1. 200.0

D026 Cresol - 4

1. 200.0

D016 2,4-D 94-75-7 10.0 D027. 1,4-Dichlorobenzene 106-46-7 7.5 D028 1,2-Dichloroethane 107-06-2 0.5 D029 1,1-Dichloroethylene 75-35-4 0.7 D030 2,4-Dinitrotoluene 121-14-2 3

1. 0.13

D012 Endrin 72-20-8 0.02 D031 Heptachlor (and its 76-44-8 0.008 epoxide)

D032 Hexachlorobenzene 118-74-1 3

1. 0.13

D033 Hexachlorobutadiene 87-68-3 0.5 D034 Hexachloroethane 67-72-1 3.0 D008 Lead 7439-92-1 5.0 D013 Lindane 58-89-9 0.4 D009 Mercury 7439-97-6 0.2 D014 Methoxychlor 72-43-5 10.0 D035 Methyl ethyl ketone 78-93-3 200.0 D036 Nitrobenzene 98-95-3 2.0 D037 Pentachlorophenol 87-86-5 100.0 D038 Pyridine 110-86-1 3

1. 5.0

D010 Selenium 7782-49-2 1.0 D011 Silver 7440-22-4 5.0 D039 Tetrachloroethylene 127-18-4 0.7 D015 Toxaphene 8001-35-2 0.5 D040 Trichloroethylene 79-01-6 0.5 D041 2,4,5-Trichlorophenol 95-95-4 400.0 D042 2,4,6-Trichlorophenol 88-06-2 2.0 D017 2,4.5-TP (Silvex) 93-72-1 1.0 D043 Vinyl chloride 75-01-4 0.2 1 Hazardous waste number.

2 Chemical abstracts service number.

3 Quantitation limit is greater than the calculated regulatory level. The quantitation limit therefore becomes the regulatory level. 4 If o-, m-, and p-Cresol concentrations cannot be differentiated, the total cresol (D026) concentration is used. Subpart D - Lists of Hazardous Wastes § 261.30 General.

(a) A solid waste is a hazardous waste if it is listed in this Subpart, unless it has been excluded from this list under § § 260.20 and 260.22.

(b) The Department will indicate its basis for listing the classes or types of wastes listed in this Subpart by employing one or more of the following Hazard Codes:

Ignitable Waste (I)

Corrosive Waste (C)

Reactive Waste (R)

Toxicity Characteristic (E)

Waste Acute Hazardous Waste (H)

Toxic Waste (T)

Appendix VII identifies the constituent which caused the Department to list the waste as a Toxicity Characteristic Waste (E) or Toxic Waste (T) in § § 261.31 and 261.32.

(c) Each hazardous waste listed in this Subpart is assigned an EPA Hazardous Waste Number which precedes the name of the waste. This number must be used in complying with the notification requirements of CRS 1973, 25-15-301(2)(a) and (b) and certain recordkeeping and reporting requirements under Parts 262 through 266, Part 268, and Part 100.

(d) The following hazardous wastes listed in § 261.31 or § 261.32 are subject to the exclusion limits for acutely hazardous wastes established in § 261.5: EPA Hazardous Wastes Nos. F020, F021, F022, F023, F026, F027.

§ 261.31 Hazardous Wastes from Non-Specific Sources.

(a) The following solid wastes are listed hazardous wastes from non-specific sources unless they are excluded under § § 260.20 and 260.22 and listed in Appendix IX.

(b) Listing Specific Definitions:

(1) For the purposes of the F037 and F038 listings, oil/water/solids is defined as oil and/or water and/or solids.

(2)(i) For the purposes of the F037 and F038 listings, aggressive biological treatment units are defined as units which employ one of the following four treatment methods: activated sludge; trickling filter; rotating biological contactor for the continuous accelerated biological oxidation of wastewaters; or high-rate aeration. High-rate aeration is a system of surface impoundments or tanks, in which intense mechanical aeration is used to completely mix the wastes, enhance biological activity, and (A) the units employ a minimum of 6 hp per million gallons of treatment volume; and either (B) the hydraulic retention time of the unit is no longer than 5 days; or (C) the hydraulic retention time is no longer than 30 days and the unit does not generate a sludge that is a hazardous waste by the Toxicity Characteristic.

(ii) Generators and treatment, storage, and disposal facilities have the burden of proving that their sludges are exempt from listing as FO37 and F038 wastes under this definition. Generators and treatment, storage, and disposal facilities must maintain, in their operating or other onsite records, documents and data sufficient to prove that: (A) the unit is an aggressive biological treatment unit as defined in this subsection; and (B) the sludges sought to be exempted from the definitions of F037 and/or F038 were actually generated in the aggressive biological treatment unit.

(3)(i) For the purposes of the F037 listing, sludges are considered to be generated at the moment of deposition in the unit, where deposition is defined as at least a temporary cessation of lateral particle movement.

(ii) For the purpose of the F038 listing, (A) sludges are considered to be generated at the moment of deposition in the unit, where deposition is defined as at least a temporary cessation of lateral particle movement and (B) floats are considered to be generated at the moment they are formed in the top of the unit. § 261.32 Hazardous Waste from Specific Sources.

(a) The following solid wastes are listed hazardous wastes from specific sources unless they are excluded under § § 260.20 and 260.22 and listed in Appendix IX.

(b) Listing Specific Definitions: (1) For the purposes of the K181 listing, dyes and/or pigments production is defined to include manufacture of the following product classes: dyes, pigments, or FDA certified colors that are classified as azo, triarylmethane, perylene or anthraquinone classes. Azo products include azo, monoazo, diazo, triazo, polyazo, azoic, benzidine, and pyrazolone products. Triarylmethane products include both triarylmethane and triphenylmethane products. Wastes that are not generated at a dyes and/or pigments manufacturing site, such as wastes from the offsite use, formulation, and packaging of dyes and/or pigments, are not included in the K181 listing.

(c) K181 Listing Levels. Nonwastewaters containing constituents in amounts equal to or exceeding the following levels during any calendar year are subject to the K181 listing, unless the conditions in the K181 listing are met.

Constituent Chemical Abstracts No. Mass levels (kg/yr)

Aniline 62-53-3 9,300 o-Anisidine 90-04-0 110 4-Chloroaniline 106-47-8 4,800 p-Cresidine 120-71-8 660 2,4-Dimethylaniline 95-68-1 100 1,2-Phenylenediamine 95-54-5 710 1,3-Phenylenediamine 108-45-2 1,200 (d) Procedures for demonstrating that dyes and/or pigment nonwastewaters are not K181. The procedures described in paragraphs (d)(1)-(d)(3) and (d)(5) of this section establish when nonwastewaters from the production of dyes/pigments would not be hazardous (these procedures apply to wastes that are not disposed in landfill units or treated in combustion units as specified in paragraph (a) of this section). If the nonwastewaters are disposed in landfill units or treated in combustion units as described in paragraph (a) of this section, then the nonwastewaters are not hazardous. In order to demonstrate that it is meeting the landfill disposal or combustion conditions contained in the K181 listing description, the generator must maintain documentation as described in paragraph (d)(4) of this section.

(1) Determination based on no K181 constituents. Generators that have knowledge (e.g., knowledge of constituents in wastes based on prior sampling and analysis data and/or information about raw materials used, production processes used, and reaction and degradation products formed) that their wastes contain none of the K181 constituents (see paragraph (c) of this section) can use their knowledge to determine that their waste is not K181. The generator must document the basis for all such determinations on an annual basis and keep each annual documentation for three years.

(2) Determination for generated quantities of 1,000 MT/yr or less for wastes that contain K181 constituents. If the total annual quantity of dyes and/or pigment nonwastewaters generated is 1,000 metric tons or less, the generator can use knowledge of the wastes (e.g., knowledge of constituents in wastes based on prior analytical data and/or information about raw materials used, production processes used, and reaction and degradation products formed) to conclude that annual mass loadings for the K181 constituents are below the listing levels of paragraph (c) of this section. To make this determination, the generator must:

(i) Each year document the basis for determining that the annual quantity of nonwastewaters expected to be generated will be less than 1,000 metric tons.

(ii) Track the actual quantity of nonwastewaters generated from January 1 through December 31 of each year. If, at any time within the year, the actual waste quantity exceeds 1,000 metric tons, the generator must comply with the requirements of paragraph (d)(3) of this section for the remainder of the year.

(iii) Keep a running total of the K181 constituent mass loadings over the course of the calendar year.

(iv) Keep the following records on site for the three most recent calendar years in which the hazardous waste determinations are made:

1. (A) The quantity of dyes and/or pigment nonwastewaters generated.
2. (B) The relevant process information used.
3. (C) The calculations performed to determine annual total mass loadings for each K181 constituent in the nonwastewaters during the year.

(3) Determination for generated quantities greater than 1,000 MT/yr for wastes that contain K181 constituents. If the total annual quantity of dyes and/or pigment nonwastewaters generated is greater than 1,000 metric tons, the generator must perform all of the steps described in paragraphs ((d)(3)(i)-(d)(3)(xi) of this section) in order to make a determination that its waste is not K181.

(i) Determine which K181 constituents (see paragraph (c) of this section) are reasonably expected to be present in the wastes based on knowledge of the wastes (e.g., based on prior sampling and analysis data and/or information about raw materials used, production processes used, and reaction and degradation products formed).

(ii) If 1,2-phenylenediamine is present in the wastes, the generator can use either knowledge or sampling and analysis procedures to determine the level of this constituent in the wastes. For determinations based on use of knowledge, the generator must comply with the procedures for using knowledge described in paragraph (d)(2) of this section and keep the records described in paragraph (d) (2)(iv) of this section. For determinations based on sampling and analysis, the generator must comply with the sampling and analysis and recordkeeping requirements described below in this section.

(iii) Develop a waste sampling and analysis plan (or modify an existing plan) to collect and analyze representative waste samples for the K181 constituents reasonably expected to be present in the wastes. At a minimum, the plan must include:

1. (A) A discussion of the number of samples needed to characterize the wastes fully;
2. (B) The planned sample collection method to obtain representative waste samples;
3. (C) A discussion of how the sampling plan accounts for potential temporal and spatial variability of the wastes.
4. (D) A detailed description of the test methods to be used, including sample preparation, clean up (if necessary), and determinative methods.

(iv) Collect and analyze samples in accordance with the waste sampling and analysis plan.

1. (A) The sampling and analysis must be unbiased, precise, and representative of the wastes.
2. (B) The analytical measurements must be sufficiently sensitive, accurate and precise to support any claim that the constituent mass loadings are below the listing levels of paragraph (c) of this section.

(v) Record the analytical results.

(vi) Record the waste quantity represented by the sampling and analysis results.

(vii) Calculate constituent-specific mass loadings (product of concentrations and waste quantity).

(viii) Keep a running total of the K181 constituent mass loadings over the course of the calendar year.

(ix) Determine whether the mass of any of the K181 constituents listed in paragraph (c) of this section generated between January 1 and December 31 of any year is below the K181 listing levels.

(x) Keep the following records on site for the three most recent calendar years in which the hazardous waste determinations are made:

1. (A) The sampling and analysis plan.
2. (B) The sampling and analysis results (including QA/QC data) (C) The quantity of dyes and/or pigment nonwastewaters generated.
3. (D) The calculations performed to determine annual mass loadings.

(xi) Nonhazardous waste determinations must be conducted annually to verify that the wastes remain nonhazardous.

1. (A) The annual testing requirements are suspended after three consecutive successful annual demonstrations that the wastes are nonhazardous. The generator can then use knowledge of the wastes to support subsequent annual determinations.
2. (B) The annual testing requirements are reinstated if the manufacturing or waste treatment processes generating the wastes are significantly altered, resulting in an increase of the potential for the wastes to exceed the listing levels.
3. (C) If the annual testing requirements are suspended, the generator must keep records of the process knowledge information used to support a nonhazardous determination. If testing is reinstated, a description of the process change must be retained.

(4) Recordkeeping for the landfill disposal and combustion exemptions. For the purposes of meeting the landfill disposal and combustion condition set out in the K181 listing description, the generator must maintain on site for three years documentation demonstrating that each shipment of waste was received by a landfill unit that is subject to or meets the landfill design standards set out in the listing description, or was treated in combustion units as specified in the listing description.

(5) Waste holding and handling. During the interim period, from the point of generation to completion of the hazardous waste determination, the generator is responsible for storing the wastes appropriately. If the wastes are determined to be hazardous and the generator has not complied with the subtitle C requirements during the interim period, the generator could be subject to an enforcement action for improper management. § 261.33 Discarded Commercial Chemical Products, Off-Specification Species, Container Residues, and Spill Residues Thereof.

The following materials or items are hazardous wastes if and when they are discarded or intended to be discarded as described in § 261.2(a)(2), when they are mixed with waste oil or used oil or other material and applied to the land for dust suppression or road treatment, when they are otherwise applied to the land in lieu of their original intended use or when they are contained in products that are applied to the land in lieu of their original intended use, or when, in lieu of their original intended use, they are produced for use as (or as a component of) a fuel, distributed for use as a fuel, or burned as a fuel, or when they are residues described in § 261.33(d) and are not recycled in accordance with § 261.2(e) within 90 days of the initial spill event.

(a) Any commercial chemical product, or manufacturing chemical intermediate having the generic name listed in paragraphs (e) or (f) of this section.

(b) Any off-specification commercial product or manufacturing chemical intermediate which, if it met specifications, would have the generic name listed in paragraphs (e) or (f) of this section.

(c) Any residue remaining in a container or in an inner liner removed from a container that has held any commercial chemical product or manufacturing chemical intermediate having the generic name listed in paragraph (e) or (f) of this section, unless the container is empty as defined in § 261.7(b) of these regulations.

[Comment: Unless the residue is being beneficially used or reused, or legitimately recycled or reclaimed; or being accumulated, stored, transported or treated prior to such use, re-use, recycling or reclamation, EPA considers the residue to be intended for discard, and thus a hazardous waste. An example of a legitimate re-use of the residue would be where the residue remains in the container and the container is used to hold the same commercial chemical product or manufacturing chemical product or manufacturing chemical intermediate it previously held. An example of the discard of the residue would be where the drum is sent to a drum reconditioner who reconditions the drum but discards the residue.].

(d) Any residue or contaminated soil, water or other debris resulting from the cleanup of a spill into or on any land or water of any commercial chemical product or manufacturing chemical intermediate having the generic name listed in paragraph (a) through (d) of this section, or any residue or contaminated soil, water or other debris resulting from the cleanup of a spill, into or on any land or water, of any off-specification chemical product and manufacturing intermediate which, if it met specifications, would have the generic name listed in paragraphs (e) or (f) of this section. Note: Colorado’s regulations are more stringent than the federal regulations of 40 CFR § 261.33(d) with regard to application of P and U-listed waste codes to unused commercial chemical products. Pursuant to the comment at 40 CFR 261.33(d), the listed chemical must be the “sole active ingredient” to meet the listing description. In Colorado, formulations may have more than one active ingredient and still meet the listing description.

(e) The commercial chemical products, manufacturing chemical intermediates or off-specification commercial chemical products or manufacturing chemical intermediates referred to in paragraphs (a) through (d) of this section, are identified as acute hazardous wastes (H) and are subject to the small quantity exclusion defined in § 261.5(e).

[Comment: For the convenience of the regulated community the primary hazardous properties of these materials have been indicated by the letters T (Toxicity), and R (Reactivity). Absence of a letter indicates that the compound only is listed for acute toxicity.] These wastes and their corresponding EPA Hazardous Waste Numbers are: FOOTNOTE: 1 CAS Number given for parent compound only.

2H- Mustard made by the Levinstein process; typically has 25% impurities. HD- Distilled mustard containing 5% impurities.

HT- 60:40 mixture of HD and T.

T- bis(2-chloroethylthio)ethyl ether.

(f) The commercial chemical products, manufacturing chemical intermediates, or off-specification commercial chemical products referred to in paragraphs (a) through (d) of this section, are identified as toxic wastes (T), unless otherwise designated and are subject to the small quantity generator exclusion defined in § 261.5(a) and (g).

[Comment: For the convenience of the regulated community, the primary hazardous properties of these materials have been indicated by the letters T (Toxicity), R (Reactivity), I (Ignitability) and C (Corrosivity). Absence of a letter indicates that the compound is only listed for toxicity.] These wastes and their corresponding EPA Hazardous Waste Numbers are: FOOTNOTE: 1 CAS Number given for parent compound only.

§ 261.35 Deletion of Certain Hazardous Waste Codes Following Equipment Cleaning and Replacement.

(a) Wastes from wood preserving processes at plants that do not resume or initiate use of chlorophenolic preservatives will not meet the listing definition of F032 once the generator has met all of the requirements of paragraphs (b) and (c) of this section. These wastes may, however, continue to meet another hazardous waste listing description or may exhibit one or more of the hazardous waste characteristics.

(b) Generators must either clean or replace all process equipment that may have come in contact with chlorophenolic formulations or constituents thereof, including, but not limited to: treatment cylinders, sumps, tanks, piping systems, drip pads, fork lifts, and trams in a manner which minimizes or eliminates the escape of hazardous waste or waste constituents, leachate, contaminated drippage, or hazardous waste decomposition products to the ground water, surface water, or atmosphere.

(1) Generators shall do one of the following:

(i) Prepare and follow an equipment cleaning plan and clean equipment in accordance with this section;

(ii) Prepare and follow an equipment replacement plan and replace equipment in accordance with this section; or (iii) Document cleaning and replacement in accordance with this section, carried out after termination of use of chlorophenolic preservations.

(2) Cleaning Requirements.

(i) Prepare and sign a written equipment cleaning plan that describes:

1. (A) The equipment to be cleaned;
2. (B) How the equipment will be cleaned;
3. (C) The solvent to be used in cleaning;
4. (D) How solvent rinses will be tested; and (E) How cleaning residues will be disposed.

(ii) Equipment must be cleaned as follows:

1. (A) Remove all visible residues from process equipment;
2. (B) Rinse process equipment with an appropriate solvent until dioxins and dibenzofurans are not detected in the final solvent rinse.

(iii) Analytical requirements.

1. (A) Rinses must be tested in accordance with SW-846, Method 8290.
2. (B) “Not detected” means at or below the lower method calibration limit (MCL) in Method 8290, Table 1.

(iv) The generator must manage all residues from the cleaning process as F032 waste.

(3) Replacement requirements.

(i) Prepare and sign a written equipment replacement plan that describes:

1. (A) The equipment to be replaced;
2. (B) How the equipment will be replaced; and (C) How the equipment will be disposed.

(ii) The generator must manage the discarded equipment as F032 waste.

(4) Documentation requirements.

(i) Document that previous equipment cleaning and/or replacement was performed in accordance with this section and occurred after cessation of use of chlorophenolic preservatives.

(c) The generator must maintain the following records documenting the cleaning and replacement as part of the facilities operating record:

(1) The name and address of the facility;

(2) Formulations previously used and the date on which their use ceased in each process at the plant;

(3) Formulations currently used in each process at the plant;

(4) The equipment cleaning or replacement plan;

(5) The name and address of any persons who conducted the cleaning and replacement;

(6) The dates on which the cleaning and replacement were accomplished;

(7) The dates of sampling and testing;

(8) A description of the sample handling and preparation techniques, including techniques used for extraction, containerization, preservation, and chain-of-custody of the samples;

(9) A description of the tests performed, the date the tests were performed, and the results of the tests;

(10) The name and model numbers of the instrument(s) used in performing the tests:

(11) QA/QC documentation; and (12) The following statement signed by the generator or his/her authorized representative: I certify under penalty of law that all process equipment required to be cleaned or replaced under § 261.35 of these regulations was cleaned or replaced as represented in the equipment cleaning and replacement plan and accompanying documentation. I am aware that there are significant penalties for providing false information, including the possibility of fine or imprisonment.

Appendix I Representative Sampling Methods The methods and equipment used for sampling waste materials will vary with the form and consistency of the waste materials to be sampled. Samples collected using the sampling protocols listed below, for sampling waste with properties similiar to the indicated materials, will be considered by the Department to be representative of the wastes.

Extremely viscous liquid — ASTM Standard D140-70Crushed or powdered material — ASTM Standard D346-75Soil or rock-like material — ASTM Standard D420-69Soil-like material-ASTM Standard D 1452-65Fly ash-like material — ASTM Standard D2234-76 [ASTM Standards are available from ASTM, 1916 Race St., Philadelphia, PA. 19103] Containerized liquid wastes — “COLIWASA” described in “TestMethods for the Evaluation of Solid Waste, Physical/Chemical Methods,” * U.S. Environmental Protection Agency, Office of Solid Waste, Washington, D.C. 20460.

[Copies may be obtained from Solid Waste Information, U.S. Environmental Protection Agency, 26 W. St. Clair St., Cincinnati, Ohio 45268] Liquid waste in pits, ponds, lagoons, and similar reservoirs. — “Pond Sampler” described in “Test Methods for the Evaluation of Solid Waste, Physical/Chemical Methods. ” * This manual also contains additional information on application of these protocols. * These methods are also described in “Samplers and Sampling Procedures for Hazardous Waste Streams,” EPA 600/2-80-018, January 1980.

Appendix II to Part 261 - Method 1311Toxicity Characteristic Leaching Procedure (TCLP) Note: The TCLP (Method 1311) is published in Test Methods for Evaluating Solid Waste, Physical/Chemical Methods,” EPA Publication SW-846, as incorporated by reference in § 260.11 of these regulations.

Appendix III to Part 261 - Chemical Analysis Test Methods Note: Appropriate analytical procedures to determine whether a sample contains a given toxic constituent are specified in Chapter Two, “Choosing the Correct Procedure” found in “Test Methods for Evaluating Solid Waste, Physical/Chemical Methods” EPA Publication SW-846, as incorporated by reference in § 260.11 of these regulations. Prior to final sampling and analysis method selection, the individual should consult the specific section or method described in SW-846 for additional guidance on which of the approved methods should be employed for a specific sample analysis situation. Appendix IV (Reserved for Radioactive Waste Test Methods) Appendix V (Reserved for Infectious Waste Treatment Specifications) Appendix VI (Reserved for Etiologic Agents)

Appendix VII - Basis for Listing Hazardous Waste Appendix VIII - Hazardous Constituents Part 261, Appendix IX - Wastes Excluded Under § § 260.20 and 260.22 DELISTING #: 001 FACILITY: South Adams County Water and Sanitation District (“SACWSD” ) ADDRESS: 7400 Quebec Street, Commerce City WASTE: Spent granular activated carbon (“GAC” ) contaminated with spent halogenated solvents, EPA hazardous waste # F002, generated after January 15, 1992. CONDITIONS: This delisting is valid only for the above specified wastestream under the following conditions:

a) The waste may not be land disposed. This restriction specifically includes, but is not limited to, the following forms of land disposal:

i) Storage in lieu of land disposal. The waste may not be stored for greater than one year unless the petitioner can prove that such storage is necessary to facilitate proper treatment of the waste as specified by the conditions of the delisting.

ii) Placement of the waste on or in the land as defined in 6 CCR 1007-3, § 268.2.

b) The waste must be regenerated at an incinerator in compliance with Sections 3004 and 3005 of the federal Solid Waste Disposal Act, 42 U.S.C. Sections 6924 and 6925; and Section 121(d)(3) of the federal Comprehensive Environmental Response Compensation and Liability Act, 42 U.S.C. Section 9621(d)(3).

c) The unit which regenerates the waste must meet the limits on the parameters below for each batch of SACWSD's waste:

i) Regeneration facility must be able to demonstrate that at least 99.99% destruction removal efficiency is achieved for the following compounds:

1. chloroform 1,1 dichloroethane (1,1 DCA)

   1,1 dichloroethene (1,1 DCE)

   t-1, 2 dichloroethene (t-1,2 DCE)

   1,1 dichloropropane tetrachloroethene (perchloroethylene or PCE)

   1,1,1 trichloroethane (1,1,1 TCA)

   trichloroethene(TCE)

ii) An afterburner combustion temperature that can be shown to achieve the required 99.99% destruction removal efficiency must be maintained. The afterburner combustion temperature shall not be less than 1,700 degrees F.

iii) The regeneration facility must remain in compliance with all applicable local, state, and federal environmental regulations.

d) SACWSD is required to obtain documentation which clearly shows that each batch of spent carbon was regenerated under the required conditions. Records must be kept on site at the Klein plant for a minimum of three years.

e) SACSWD must notify the Hazardous Materials and Waste Management Division, Hazardous Waste Control Section on a quarterly basis, of SACWSD's knowledge of significant changes in the type or concentration of hazardous constituents in the carbon or in the influent to SACWSD's GAC system. “Significant changes” are defined as increases in the total concentration of any of the following constituents (in the carbon or the influent) which exceed the values given in the October 1990 petition by 50% or greater:

1. chloroform 1,1 dichloroethane (1,1 DCA)

   1,1 dichloroethene (1,1 DCE)

   trans-1,2 dichloroethene (t-1,2 DCE)

   1,1 dichloropropane tetrachloroethene (perchloroethylene or PCE)

   1,1,1 trichloroethane (1,1,1 TCA)

   trichloroethene (TCE)

“Significant changes” also refers to the appearance of any additional Part 264, Appendix IX hazardous constituents (in either the carbon or the influent) not represented in SACWSD's October 1990 delisting petition.

f) The Department reserves the right to re-evaluate and, if necessary, revoke this delisting or modify its conditions in the event of any “significant changes” (as defined above) in the carbon or in the influent to SACWSD's GAC system.

DELISTING #: 002 FACILITY: NTI, A Division of Colorado Springs Circuits, Inc. (“NTI” ) ADDRESS: 6035 Galley Road, Colorado Springs, 80915 WASTE: Wastewater Treatment Sludge from Electroplating Operations EPA hazardous waste # F006, generated after August 20, 1996.

The Solid and Hazardous Waste Commission is hereby removing the conditional delisting granted to NTI, a division of Colorado Springs Circuits, Inc. (“NTI” ), for its facility located at 6035 Galley Road in Colorado Springs, Colorado (the “Facility” ).

NTI was granted a conditional delisting by the Commission on August 20, 1996 for wastewater treatment sludge (F006 hazardous waste) generated from electroplating operations at the Facility. The delisting was granted under conditions that specified sampling, storage, recordkeeping and disposal requirements for the delisted sludge. The conditional delisting of the F006 waste also prohibited any major changes to the electroplating process or wastewater treatment process at the Facility without prior notification, evaluation, and approval by the Division. In January of 2000, Dynamic Details, Inc. (“DDI” ), formally known as NTI, announced its plans to consolidate its pre-production manufacturing operations located at the Facility into its Dallas, Texas operation, which would result in the complete closure of the Colorado Springs facility. On June 20, 2000, the Division received formal notice indicating that DDI had officially ceased Operations at the Facility on December 31, 1999, and had completed all closure activities at the Facility as of May 18, 2000. Therefore, NTI’s August 1996 conditional delisting is no longer applicable, and the Commission is removing the delisting.

DELISTING # 003 FACILITY: Denver Arapahoe Chemical Waste Processing Facility (“DACWPF” ) EPA ID NO.: COD000695007 ADDRESS: 27500 E. Yale Avenue, Aurora, Colorado 80044 WASTE: Leachate which collects in the primary and secondary leachate collection sumps of the DACWPF reconstructed cell (EPA hazardous waste # F039), removed after October 30,1998. CONDITIONS: This delisting is valid only for the waste stream specified above and referenced in the delisting petition submitted June 16, 1998, under the following conditions:

1. The collected leachate must be used only for dust suppression at Subtitle D solid waste disposal facilities;

2. Use of the collected leachate for dust suppression shall be limited to areas within the footprint of any Subtitle D solid waste disposal facility liner system and shall not be applied to the final cover of any Subtitle D solid waste disposal facility;

3. The leachate must be sampled annually and analyzed for toxicity characteristic leaching procedure (“TCLP” ) metals, volatiles, semi-volatiles, and pesticides to ensure that it will satisfy the conditions presented in the petition and does not exceed applicable risk levels; and 4. Appropriate precautions should be taken to avoid dermal contact or ingestion of the leachate such as, where appropriate, use of repellent boots, coveralls, gloves, and safety glasses. DELISTING #: 004 FACILITY: AAA Plating, Inc.

ADDRESS: 7777 40th Avenue, Denver, CO 80205 WASTE: Wastewater Treatment Sludge from Electroplating and Chemical Conversion Coating Operations. EPA Hazardous Waste Codes F006 and F019 generated after June 20, 2000. CONDITIONS: This delisting is valid only for the waste stream specified above and referenced in the delisting petition submitted on January 5, 2000 under the following conditions:

a. Changes to Current Operations 1. AAA Plating must notify the Division at least 30-days prior to implementing any major change to the electroplating or chemical conversion coating processes. A major change is any change including alteration of the current wastewater treatment process or incorporating different hazardous chemicals or reagents such that the composition of the wastewater treatment sludge is altered.

2. AAA Plating must notify the Hazardous Waste Compliance Unit of the Hazardous Materials and Waste Management Division within 15 days after implementing any change to the wastewater treatment, electroplating, or chemical conversion coating processes that cause a significant change in the type or concentration of any hazardous constituent in the waste. A significant change is defined as an increase in the total waste concentration for any constituent identified below:

Constituent Total Concentration (ppm)

Arsenic 0.58 Barium 10.87 Cadmium 8.53 Chromium (Hexavalent) Detection Lead 16.88 Mercury Detection Nickel 3083 Selenium Detection Silver 30.1 Significant change also includes the detection of any additional Part 264, Appendix IX hazardous constituents that are not identified above.

3. The Division reserves the right to re-evaluate and, if necessary, revoke this approval or modify these conditions in the event that a significant change, as defined above, is reported by AAA Plating. In such case, the Division may revoke or impose temporary requirements on the petitioned waste until such time as the petition can be re-evaluated.

b. Storage Requirements 1. The delisted waste generated by AAA Plating may not be accumulated on-site for a period in excess of one year.

2. The volume of delisted waste accumulated on-site may not exceed 40 cubic yards or 28 tons at any given time.

3. The delisted waste must be stored in a container that is capable of being closed. The container must be marked or labeled to identify the contents as “delisted waste” and with an accumulation start date. The container must be kept closed except for when waste is being added to or removed from the container.

c. Recordkeeping Requirements 1. AAA Plating shall maintain records of the disposal or recycling of all delisted waste that documents that such activities are in accordance with the delisting petition.

2. AAA Plating shall maintain all records required by number one above for a period of at least three years.

d. Disposal Requirements 1. The delisted waste shall be disposed in a landfill meeting the requirements of the Colorado Solid Waste Regulations (6 CCR 1007-2) or recycled at an appropriate metal reclamation facility.

DELISTING #: 005 FACILITY: Wright and McGill Company ADDRESS: 4245 East 46th Avenue, Denver, Colorado 80216 WASTE: Wastewater Treatment Sludge from Chemical Etching Operations. EPA Hazardous Waste Code F006 generated after November 20, 2001.

CONDITIONS: This delisting is valid only for the waste stream specified above and referenced in the delisting petition submitted on June 25, 2001 under the following conditions:

a. Changes to Current Operation 1. The Wright and McGill Company must notify the Department at least 30-days prior to implementing any major change to the chemical etching (i.e., the lazer sharpening) process. A major change is any change including alteration of the current wastewater treatment process or incorporating different hazardous chemicals or reagents such that the composition of the lazer sludge is altered.

2. The Wright and McGill Company must notify the Hazardous Waste Compliance Unit of the Hazardous Materials and Waste Management Division within 15 days after implementing any change to the wastewater treatment or chemical etching process that causes a significant change in the type or concentration of any hazardous constituent in the waste. A significant change is defined as an increase in the total waste concentration for any constituent identified below:

Constituent Total Concentration (ppm)

Arsenic Detection Barium 7.96 Cadmium 0.23 Chromium (Hexavalent) Detection Lead 16.53 Mercury Detection Nickel 244.25 Selenium Detection Silver Detection A significant change also includes the detection of any additional Part 264, Appendix VIII hazardous constituents that are not identified above.

3. The Department reserves the right to re-evaluate and, if necessary, revoke this approval or modify the conditions in the event that a significant change, as defined above, is reported by the Wright and McGill Company. In such case, the Department may revoke or impose temporary requirements on the petitioned waste until such time as the petition can be re- evaluated.

b. Storage Requirements 1. The delisted waste generated by the Wright and McGill Company may not be accumulated on- site for a period in excess of one year.

2. The volume of delisted waste accumulated on-site may not exceed 40 cubic yards or 28 tons at any given time.

3. The delisted waste must be stored in a container that is capable of being closed. The container must be marked or labeled to identify the contents as “delisted waste” with an accumulation start date, and the container must be kept closed except for when waste is being added to or removed from the container.

c. Recordkeeping Requirements 1. The Wright and McGill Company shall maintain records documenting that the delisted waste is managed in accordance with the delisting petition.

2. The Wright and McGill Company shall maintain all records required by number one above for a period of at least three years.

d. Disposal Requirements 1. The delisted waste shall be disposed in a landfill meeting the requirements of the Colorado Solid Waste Regulations (6 CCR 1007-2).

DELISTING#: 006 FACILITY: Photo Stencil, LLC ADDRESS: 4725 Centennial BoulevardColorado Springs, Colorado 80919 WASTE: Wastewater Treatment Sludge from Electroplating and Chemical Etching Operations. EPA Hazardous Waste Code F006 generated after June 17, 2003. CONDITIONS: This delisting is valid only for the waste stream specified above and referenced in the delisting petition submitted on April 16, 2003 under the following conditions:

a. Changes to Current Operation 1. Photo Stencil must notify the Department at least 30-days prior to implementing any major change to the electroplating and/or chemical etching processes. A major change is any change including alteration of the current wastewater treatment process or incorporating different hazardous chemicals or reagents such that the composition of the wastewater treatment sludge is altered.

2. Photo Stencil must notify the Hazardous Waste Compliance Unit of the Hazardous Materials and Waste Management Division within 15 days after implementing any change to the wastewater treatment, electroplating, or chemical etching process that causes a significant change in the type or concentration of any hazardous constituent in the waste. A significant change is defined as an increase in the total waste concentration for any constituent identified below:

Constituent Total Concentration (ppm)

Arsenic 0.54 Barium 4.6 Cadmium Detection Chromium (Hexavalent) Detection Chromium-total 308.5 Copper 4,715 Lead 10.6 Mercury Detection Nickel 13,183 Selenium Detection Silver Detection Complexed Cyanide Detection A significant change also includes the detection of any additional Part 261, Appendix VIII hazardous constituents that are not identified above.

3. The Department reserves the right to re-evaluate and, if necessary, revoke this approval or modify the conditions in the event that a significant change, as defined above, is reported by Photo Stencil. In such case, the Department may revoke or impose temporary requirements on the petitioned waste until such time as the petition can be re-evaluated.

b. Storage Requirements 1. The delisted waste generated by Photo Stencil may not be accumulated on-site for a period in excess of one year.

2. The volume of delisted waste accumulated on-site may not exceed 40 cubic yards or 28 tons at any given time.

3. The delisted waste must be stored in a container that is capable of being closed. The container must be marked or labeled to identify the contents as “delisted waste” with an accumulation start date, and the container must be kept closed except for when waste is being added to or removed from the container.

c. Recordkeeping Requirements 1. Photo Stencil shall maintain records documenting that the delisted waste is managed in accordance with the delisting petition.

2. Photo Stencil shall maintain all records required by number one above for a period of at least three years.

d. Disposal Requirements 1. The delisted waste shall be disposed in a landfill meeting the requirements of the Colorado Solid Waste Regulations (6 CCR 1007-2).

DELISTING #: 007 FACILITY: Golden Aluminum, Inc.

ADDRESS: 1405 East 14th Street, Fort Lupton, CO 80621 WASTE: Wastewater Treatment Sludge from Aluminum Cleaning and Conversion Coating Operations. EPA Hazardous Waste Code F019 generated after the effective date of this delisting. The Solid and Hazardous Waste Commission is hereby removing the conditional delisting granted to the Golden Aluminum, Inc. (“Golden Aluminum” ) facility in Fort Lupton, Colorado (the “Facility” ). Golden Aluminum was granted a conditional delisting by the Commission on October 18, 2005 for wastewater treatment sludge (F019 hazardous waste) generated from aluminum cleaning and conversion coating operations at the Facility.

The delisting was granted under conditions that specified disposal, recordkeeping, and storage requirements for the delisted sludge. The conditional delisting of the F019 waste also prohibited any major changes to the chemical conversion coating process or wastewater treatment process without prior notification, evaluation, and approval by the Division. On February 12, 2008, the Division received notification from Golden Aluminum indicating that the Facility would be converting its titanium conversion coating process to a chrome conversion coating process effective February 18, 2008.

Delisting determinations are made on a case-by-case basis with respect to a specific waste generation process. Golden Aluminum’s change to a new chromate conversion coating process using hexavalent chromium is a significant change from the titanium conversion coating process described in the Facility’s April 8, 2005 delisting petition.

Golden Aluminum’s 2005 delisting no longer covers the wastewater treatment sludge generated at the Facility, and the Facility was notified by the Division on March 24, 2008 that wastewater treatment sludge generated from the new chromate conversion coating process at the Facility must be collected and managed as a hazardous waste with the waste code of F019. Eff 09/30/2008 DELISTING #: 008 [Eff. 12/30/2008] FACILITY: Advanced Surface Technologies, Inc.

ADDRESS: 6155 West 54th Avenue, Arvada, CO 80002 WASTE: Wastewater treatment sludge generated from the on-site wastewater pretreatment of electrolytic and electroless plating operations. EPA Hazardous Waste Codes F006 and F019 generated after the effective date of this delisting.

CONDITIONS: This delisting is valid only for the waste stream specified above and referenced in the delisting petition submitted on April 8, 2008 under the following conditions:

a. Changes to Current Operations 1. Advanced Surface Technologies, Inc. must notify the Division at least 30-days prior to implementing any major change to the electrolytic and/or electroless plating processes at the Facility. A major change is any change including alteration of the current wastewater treatment process or incorporating different hazardous chemicals or reagents such that the composition of the wastewater treatment sludge is altered.

2. Advanced Surface Technologies, Inc. must notify the Hazardous Waste Compliance Unit of the Hazardous Materials and Waste Management Division within 15 days after implementing any change to the wastewater treatment, or electrolytic and/or electroless plating processes that cause a significant change in the type or concentration of any hazardous constituent in the waste. Advanced Surface Technologies, Inc. shall also notify the Division whenever the sludge exhibits a characteristic of hazardous waste. A significant change is defined as an increase in the total waste concentration for any constituent identified below:

Constituent Average Concentration 2xs the Standard Concentration

1. (ppm) Deviation Requiring CDPHE Notification (Two Standard Deviations above the average concentration)

Cyanide (amenable) 0.23 0.51 0.74 Cyanide 0.28 0.35 0.63 Chromium VI 39.50 35.17 74.67 Chromium III 5,350 4,704.25 10,054.25 Mercury < 0.02 Non-detect Detection Arsenic 7.17 13.91 11.08 Cadmium 10.55 15.06 25.61 Copper 17,500 7,468 24,968 Lead 17.20 25.76 42.96 Nickel 20,450 10,558 31,008 Selenium < 5.00 Non-detect Detection Silver 42.33 27.15 69.48 Barium 3.43 3.91 7.34 A significant change also includes the detection of any additional Part 264, Appendix IX hazardous constituents that are not identified above.

3. The Division reserves the right to re-evaluate and, if necessary, remove this approval or modify these conditions in the event that a significant change, as defined above, is reported by Advanced Surface Technologies, Inc. In such case, the Division may remove this delisting or impose temporary requirements on the delisted waste until such time as an appropriate amendment to this delisting can be considered by the Solid and Hazardous Waste Commission.

b. Sampling Requirements Advanced Surface Technologies, Inc. shall conduct annual verification sampling of the delisted waste to monitor for any significant change in the type or concentration of any hazardous constituents in the waste. Annual verification sampling shall be submitted to the Division within sixty (60) days of the sampling event for review against initial delisting criteria and sampling methodology.

c. Storage Requirements 1. The delisted waste generated by Advanced Surface Technologies, Inc. may not be accumulated on-site for a period in excess of one year.

2. The volume of delisted waste accumulated on-site may not exceed 40 cubic yards or 28 tons at any given time.

3. The delisted waste must be stored in a container that is capable of being closed. The container must be marked or labeled to identify the contents as “delisted waste” and with an accumulation start date. The container must be kept closed except for when waste is being added to or removed from the container.

d. Recordkeeping Requirements 1. Advanced Surface Technologies, Inc. shall maintain records of the disposal or recycling of all delisted waste that documents that such activities are in accordance with the delisting petition.

2. Advanced Surface Technologies, Inc. shall maintain all records required by paragraph d.1. above for a period of at least three years.

e. Disposal Requirements The delisted waste shall be disposed in a landfill meeting the requirements of the Colorado Solid Waste Regulations (6 CCR 1007-2) or recycled at an appropriate metal reclamation facility. Statement of Basis and Purpose Part 261 - Identification and Listing of Hazardous Waste Purpose The fundamental purpose of the Part 261 regulations which are promulgated pursuant to C.R.S. 1973, 25- 15-302(2) is to identify those wastes, which, because of the public health and environmental hazards that they may pose in transportation, treatment, storage or disposal, are subject to regulation as hazardous wastes.

Additionally, regulations concerning the identification and listing of hazardous waste are a necessary and required component in conducting a hazardous waste management program; the State intends to obtain EPA authorization for a hazardous waste management program pursuant to C.R.S. 1973, 25-15-302. Such full state authorization to conduct the hazardous waste regulatory program can be granted only upon the determination that the State program is equivalent to that of the EPA. Basis These regulations are based upon a “cradle-to-grave” system of regulation of hazardous waste. Under this system, hazardous waste is tracked and regulated from the point of generation through storage and transportation to the point of treatment and/or disposal. In this manner, a major portion of the hazardous waste generated in the State is regulated and accounted for, thereby minimizing the potential for public health and environmental problems resulting from improper management, handling, transportation and disposal of these wastes. The great potential for public health and environmental problems, including hazards associated with fire, explosion, direct contact, and air, surface water and groundwater contamination resulting from inadequate management of hazardous wastes has been documented at hundreds of sites throughout the nation and has spurred the development of hazardous waste regulations pursuant to the Resource Conservation and Recovery Act (RCRA) of 1976, Public Law 94-580 These regulations are based, for the most part, on those developed by the EPA under Subtitle C of RCRA. This was done for the reasons discussed below. Because the Federal hazardous waste regulations are comprehensive and technically complex, it was felt that adopting the Federal format and amending specific sections to the needs of the State, as opposed to developing State regulations “from scratch” , would save substantial amounts of time and financial resources. Also, it was felt that the process of determination of initial program equivalency would be greatly simplified through adoption of the Federal format. Further, because the Federal regulations are presently subject to frequent amendment, adoption of the Federal format greatly enhances maintaining equivalency of the State regulations to the Federal program.

As stated above, much of the scientific basis for these regulations was developed in the course of EPA research and investigations over a period of several years. Therefore, all information utilized by EPA in developing and proposing these regulations, including that referenced in the Federal Register Volume 45, Number 98, May 19, 1980 p. 33066 et seq . is hereby incorporated in this statement by reference. Pursuant to amendments made to this part 261 effective April 30, 1993, the information contained in the following Federal Registers is incorporated by reference: 55 FR 18726; 56 FR 27300-27330; 55 FR 46354-46397; 56 FR 21955-21960; 55 FR 5340-5342; 55 FR 18496-18506; 54 FR 50968; 53 FR 43881- 43884; 53 FR 43878-43881; and 56 FR 19951.

The basis for these regulations was further developed through a series of twelve public meetings at which comments were received from interested parties. Accordingly, certain changes from the Federal regulations have been incorporated in these regulations where it was deemed advisable as a result of public comment and study of the issues, in order to tailor the regulations more to Colorado's needs. Such departures from the approach taken in the Federal regulations are discussed in this document under the pertinent topics.

The Regulations These regulations define the terms “solid waste” and “hazardous waste,” and identify those wastes which are excluded from these regulations. This is necessary in order to characterize the universe of materials which are subject to regulation.

Under the definition of hazardous waste, § 261.3, the phrase “if it has no commercial use or value” has been added as a restriction on the EPA definition. The basis for this action was to achieve consistency with the definition of hazardous waste under C.R.S. 1973, 25-15-101(9)(a). Also, under the Exclusions Section — materials which are not solid wastes, the following additions were listed in order to provide consistency with C.R.S. 1973, 25-15-101(9)(a): -inert materials used for construction fill or top soil placement or changing contour for agriculture or mining purposes; -any materials or waste exempted or not regulated as hazardous waste under the Federal Act. Subpart B of these regulations sets forth criteria used to identify characteristics and to list particular hazardous wastes. Since there are hazardous wastes which meet these criteria, but which are not listed under Subpart D nor meet the characteristics under Subpart C, the regulations provide that the Department may identify such a waste as hazardous for purposes of these regulations. This provision is necessary in order to protect public health and the environment by ensuring that all hazardous wastes are adequately managed under these regulations. Hazardous wastes under Subpart C may be subject to regulation based on four characteristics defined in the regulations. These characteristics are ignitability, corrosivity, reactivity and (EP) toxicity. This allows a waste to be characterized as hazardous without specifically listing it by name or waste stream. Additionally, Subpart D lists particular hazardous waste, both by specific industrial process waste streams and as discarded commercial products. The discarded commercial products list is further subdivided into toxic and acutely hazardous wastes. Additionally, these regulations establish special, reduced management requirements for hazardous waste produced by small quantity generators. Small quantity generators are defined as those who generate less than 1,000 kilograms of hazardous waste per month, or less than 1 kilogram of acutely toxic waste within one month. Under this small quantity generator provision, those who treat or dispose of their own waste on-site must have a permit under these regulations or written Departmental approval. This requirement was added by the State in order to clarify the responsibilities of small quantity generators, and to ensure that such activities are conducted in a manner which does not threaten public health or the environment. If hazardous waste is disposed off-site, the waste must be delivered to an interim status or permitted facility, or a state-approved facility.

These regulations also include special requirements for hazardous waste which is used, re-used, recycled or reclaimed. These wastes are subject to reduced regulatory requirements in order to encourage re-use activities. This provision may conflict with C.R.S. 1973, 25-15-101(9)(a) which provides that waste which has commercial use or value is not considered hazardous. EPA is also in the process of revising these re- use regulations and this issue may need to be readdressed in the future. Statement of Basis and Purpose Rule-making Hearing of April 20,1993 Hazardous Waste Management System; Identification and Listing of Hazardous Waste Basis and Purpose.

These amendments to 6 CCR 1007-3, Part 261 are made pursuant to the authority granted to the Hazardous Waste Commission in section 25-15-302(2), C.R.S. Toxicity Characteristic Revisions The Environmental Protection Agency adopted an amendment which exempted from the toxicity characteristic rules certain used chlorofluorocarbon refrigerants which exhibit the toxicity characteristic and which are reclaimed for use. These amendments provide state equivalency with the regulatory requirements of the Environmental Protection Agency.

The amendments also remove the quality assurance requirement found in Method 1311, Toxicity Characteristic Leaching Procedure for correcting measured values for analytical bias. However, this rule retains appropriate quality assurance provisions, including that matrix spike recoveries be calculated and that the method of standard additions be employed as the quantitation method for metallic contaminants when appropriate as specified in the method. These amendments also provide state equivalency with the regulatory requirements of the Environmental Protection Act This Basis and Purpose incorporates by reference the preamble language for the Environmental Protection Agency regulations published in the Federal Register at 55 FR 5910-5915, February 13, 1991, and at 55 FR 55114, November 24, 1992.

Exclusion of Certain Wastes The Environmental Protection Agency amended the federal regulations to exclude from the definition of solid waste those coke by-product residues that are recycled by being returns to coke ovens as a feedstock to produce coke; returned to the tar recovery process as a feedstock to produce coal tar; or mixed with coal tar prior to coal tar refining or sale. The Agency also excluded the similarly-situated hazardous waste K087 when recycled in those ways. These amendments mirror the Agency's amendments.

The promulgation of these amendments provide state equivalency with the regulatory requirements of the Environmental Protection Agency.

This Basis and Purpose incorporates by reference the preamble language for this amendment published in the Federal Register at 57 FR 27880-27888 on June 22, 1992. ___________________________________________________ Editor’s Notes 6 CCR 1007-3 has been divided into smaller sections for ease of use. Versions prior to 4/30/04 and rule history are located in the first section, 6 CCR 1007-3. Prior versions can be accessed from the History link that appears above the text in 6 CCR 1007-3. To view versions effective after 4/30/04, select the desired part of the rule, for example 6 CCR 1007-3 Part 260, or 6 CCR 1007-3 Part 8. History [For history of this section, see Editor’s Notes in the first section, 6 CCR 1007-3]