### BACKGROUND DOCUMENT RESOURCE CONSERVATION AND RECOVERY ACT SUBTITLE C HAZARDOUS WASTE MANAGEMENT

SECTION 3001

- IDENTIFICATION AND LISTING OF HAZARDOUS WASTE

SECTION 261.33

- HAZARDOUS WASTE FROM DISCARDING OF COMMERIAL CHEMICAL PRODUCTS AND THE CONTAINERS AND SPILL RESIDUES THEREOF

ENVIRONMENTAL PROTECTION AGENCY OFFICE OF SOLID WASTE January 1981 Updated April 198170 UNITED STATES ENVIRONMENTAL PROTECTION AGENCY 

## JtJN - 3 \981 OFFICE OF SOLID WASTE §261.33 Background Document David Friedman, Hanager (\ , 

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### Attached is a copy of the final §261.33 Background Document which reflects the regulations as of April 1981. This document superceeds the previously issued draft document. Regional Libraries Docket Steve Silverman Alan 

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c,,-, 1320-6 (Rev. 3 76)Table of Contents Page Introduction 

# ............................................... 1 Proposed Rules Synopsis of Proposed Rules • • • . • • • • . • • . • . • • • • • . . • • . • • • • • • • • 2 Rationale for Proposed Rules •••••••••••••••••••••••• •••••• 5 Summary and Consideration of Comments Response to Comments (General)............................. 8 Basis for Listing
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Single List
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Listing of Off-Specification Materials
. •••••••••••••••• .•• 11 Listing of 0 RM- A Substances • • • . . • • . • • . . • • • • . • . • . . . . • . • • • • . 11 Listing of Containers
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Listing of Spill Residues and Debris ••••••.•..•.•.••.•..•• 14 Modification of the List of Chemicals .....•..••..•..•••••• 15 Reconsideration of the Proposed Rules Criteria for Listing
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Changes in the Listing of Chemicals ....•.•••.•.•.•..•..••.• 19 Rationale for Selecting Acutely Hazardous Criteria •••..••.• 21 Listing of Containers ..................................... 25 Listing of Spill Residues and Debris .•.•.•..•.•••..••.•••• 27 De Minimis Quantity Cut-Offs for Small •••••••••••••••••••• 29 --Quantity Generators Bibliography
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Appendices A. Basis for listing materials in §261.33(e) and disposition of substances included on Appendices III, IV, V, and XII of proposed rule. • ••••••..••• 33 B. Basis for listing materials on §261.33(f) • • • • • • • • • • 70 Response to Comments on Interim Final Rules ••••••••••••••••• 81 Final Rules ••••••••••••·•••••••••••••••••••••••••••••••••••• 102 Updated 4/23/81 BLB Fed Reg dt •••••• 131 261.33(e)&(f) updated

- Spelling Errors corrected

- 141INTRODUCTION
This background document explains the basis for regulations concerning discarded commercial products, which are described and listed in §261.33 and for which exclusion levels are established in §261.5. Commercial chemical products or manufacturing chemical intermediates are divided into two categories: those which are acutely hazardous and subject to stringent exclusion levels; and those which are hazardous and which are regulated in the same manner as other hazardous wastes. These regulations concern commercial chemical products, and associated off-specification chemical products, spill cleanup residues and debris. For acutely hazardous chemicals, the regulations also cover containers and inner liners**wh~ch** contained the acutely hazardous chemicals.



### 1PROPOSED RULES Synopsis of Proposed Rules Appendices III, IV, and V of the Proposed Rules and Appendix XII of the Supplemental Proposed Rule listed approximately 300 toxic chemicals. Appendix III listed 24 pesticides which either had been cancelled for some or all uses under the Federal Insecticide, Fungicide and Rodenticide Act (FIFRA)
or were undergoing RPAR (rebuttable presumption against registration) under FIFRA. Appendix IV listed 157 chemicals that were listed as Poison A, Poison B or ORM-A materials in the Department of Transportation regulations under 49 CFR Parts 172 and 173. Appendix V listed the remainder of the 129 toxic priority pollutants (not already included on Appendices III or IV) for which effluent guidelines limitations were being developed under the Clean Water Act. Appendix XII listed 33 chemicals that had been found to be human carcinogens or potential human carcinogens by the International Agency for Research on Cancer. By reference to the appendices these hazardous chemicals, if discarded, were listed as hazardous wastes in §2SO.l4(a) of the Proposed Rules. In addition, §250.14(a) also provided that off-specification species of these toxic chemicals, if discarded; the emptied containers from these chemicals, if not triple rinsed; and the clean-up residues and debris from spills of these chemicals were hazardous wastes.



### 2In selecting these chemicals EPA relied heavily on the work done by other offices in the Agency and by other agencies. The Agency believed that each listed**c~emical** possessed toxic properties: that they either exhibited the proposed Extraction Procedure (EP) toxicity characteristic or that they were either toxic, explosive, ignitable, reactive, mutagenic, carcinogenic or teratogenic substances. The Agency had not, however, conducted a laboratory evaluation of each substance with reference to either the characteristics or the criteria for listing (§261.11). These chemicals were proposed to be hazardous wastes if (1) they, themselves, were discarded, (2) off-specification species of these chemicals were discarded, (3) containers which formerly contained these chemicals were discarded or (4) clean-up residues and debris from spills of these chemicals
were discarded. Importantly, these chemicals were not listed to be used to cause solid wastes derived from manufacturing processes (and which might only**c~ntain** very low concentrations of these chemicals) to be listed as hazardous wastes. As is noted later in this document, this point was misunderstood by many commenters. Section 250.29(a) of the Proposed Rules provided that any retailer or any person who produced and disposed of no more than 100 kilograms of hazardous waste in any one month would not be subject to the full Subtitle C regulation if the waste
was disposed of in a Subtitle D facility. The effects of this exemption were that (1) any retailer could discard any and all
3quantities of these chemicals or the associated materials described above without being subject to regulation and (2) any small quantity generator could discard as much as 100 kilograms per month* of these chemicals or the associated

**~aterials** without being subject to the Subtitle C regulations. Consequently, these chemicals and associated materials effectively were hazardous wastes only if generated by non-retail and large-quantity (greater than 100 kilograms per month) generators.

* Provided he discarded no other hazardous wastes. The exemption, as proposed, covered total quantity of hazardous wastes. Hence, only 100 kilogram of the 295 chemicals .and other hazardous wastes, in aggregate, in any one month, were excluded. The final exlcusions also relate to total quantities of hazardous waste. 

### 4Rationale for Proposed Rules In the development of the Proposed Rules, a number of persons pointed out that an important part of the hazardous waste generated throughout the country were commercial chemicals that normally are not discarded but, for a variety of reasons,
are discarded occasionally. Examples given were reduction of inventory, changes in product line, cancellation of pesticides., no further use for remaining stocks and residuals from batch-process manufacturing
or formulating operations. In particular, operators of solid waste management facilities indicated that some "wastes" which they receive are discarded pure chemicals as opposed to typical wastes from manufacturing or other activities. These same persons also indicated that off-specification chemicals are sometimes discarded. The Agency recognized that some of these chemicals, commercial products and offspecification materials were toxic and, even though discarded only occasionally (and usually in small**amo~nts,)** could pose a substantial hazard to human health or the environment. The Agency therefore concluded that pesticides that had been cancelled or were being reviewed for possible cancellation action (Appendix III of the Proposed Rules) and Poison A, Poison B and ORM-A materials that are regulated by the Department of Transportation because of their threat to safety (Appendix IV) constituted chemicals that were toxic and, if discarded, could pose substantial hazard to human health or the environment. It further concluded that the 

### 5toxic pollutants being regulated under §307(a) of the Clean Water Act (Appendix V, unless already listed in AppendiX III or IV,) and known or suspected human carcinogens (Appendix XII) were hazardous materials that posed significant risk to human health or the environment, if discarded. Consequently, these chemicals were listed in the Proposed Rules and were established to be hazardous wastes if they or their offspecification species were discarded. The Agency also learned that a significant part of the solid waste generated consisted of nominally "empty" containers, including containers that had contained toxic chemicals. These "empty" containers typically contain chemical residues because they had not been rinsed or otherwise decontaminated. It also was said ·that, oftentimes, containers were not completely empty and contained significant amounts of chemicals. Finally, the Agency had reports of several damage cases where the chemical residues left in discarded containers had caused human health injury. One such incident involved a child who was hospitalized for organophosphate poisoning after playing among empty pesticide drums purchased by the city for use as trash containers 

### (U.s. House of Representatives, House Report 94-1491 at 22). On the basis of this advice, the Agency reasoned that unrinsed, contaminated, discarded containers, that had held any of the chemicals discussed above, could cause injury and pose other substantial

6hazards to human health or the environment. Consequently, it includei such containers in the proposed list of hazardous wastes. Finally, the Agency recognized that there were occasional spills during the transportation or storage of chemicals which resulted in the contamination of soils, waters and other materials, including debris. Toxic chemicals were no
more immune to occasional spills during their manufacture, storage, transportation or use than oils; spills with which the Agency had considerable experience. Thus, the Agency concluded that the contaminated spill clean-up residues and debris from toxic chemical spills, if not properly disposed of as hazardous wastes, pose substantial hazard to human health or the environment. Consequently, it included such residues and debris in the proposed list of hazardous wastes. In other words, while the Clean Water Act provides for reporting and clean-up of spilled materials**~f** spills into the navigable waters, this RCRA provision requires management of spills of these listed materials as hazardous waste. Additionally, it provides coverage for in-plant or other spills not within the scope of the Clean Water Act regulations.

7Response to Comments General A number of commenters misunderstood the Proposed Rules and assumed that any waste, including manufacturing process wastes, containing any of the chemicals listed in Appendices III, IV, V and XII would be a hazardous waste. This led several of these commenters to urge that a quantity or concentration level, below which a waste would not be a hazardous waste, be established for each chemical listed in the Appendices. Other commenters urged that, if the Appendices only applied to pure chemicals and then only applied when they are discarded, these points should be emphasized. The Agency recognizes that the**la~guage** of the Proposed Rules may have been confusing. Consequently, it has substantially re-written the provisions, currently in**§261.3~** of the Final Rules, and has added an extensive comment to clarify the points raised by these commenters. This amplification is further discussed in the following section, Reconsideration of the Proposed Rules, of this document. One commenter urged that degree of hazard be incorporated in the wastes listed in §2SO.l4(a) and the related Appendices. The Agency's response to comments on the broad topic of the use of degree of hazard in the listing of hazardous wastes is discussed in a separate Background Document.

8Basis for Listing A few commenters seemed to suggest that Appendices III, IV, V and XII should be used to cause wastes containing any of the listed chemicals to be hazardous wastes. This would essentially change the list into a "characteristic" with its attendent responsibilities for the generator. The Agency did not intend such a result. However, the Agency has revised its criteria for listing hazardous wastes (see §261.11 of the Final Rules) to include this concept. The Agency has developed a list of hazardous constitutents, Appendix VIII, and will presume that a waste containing any of those constituents is a hazardous waste unless consideration of other factors, such as quantity of the waste, concentration of the toxic agent or mobility of the toxicant, etc., causes the Agency to conclude that the waste does not pose a s.ubstantial hazard to human health or the environment. This criterion requires the Agency to make a determination to list such wastes; it is not**~he** responsibility of the regulated community to designate unlisted wastes as hazardous wastes because they contain materials on Appendix VIII. Appendix VIII does in fact contain the toxic substances listed in §261.33(e) of the final rule. A more detailed discussion of this criterion is provided in the Background Document covering §261.11 of the Final Rules. Several commenters pointed out that the basis for listing each chemical listed in Appendices III, IV and V was not given;

9rather the generic basis for listing**~as** given in the waste classes listed in §2SO.l4(a)**~here** the designation of T, 

## o end M indicated that all the chemicals listed in the Appendices
are hazardous because they possess the toxicity characteristic and contain toxic organic and carcinogenic, mutagenic and teratogenic constituents. These commenters noted that certain of the listed chemicals did not meet all three of these listing criteria. The Agency agrees and admits that it should have placed the specific basis for listing with each chemical in the Appendices rather than in §2SO.l4(a). In the final rule, EPA has classified the basis for listing the chemical products subject to regulation. The substances contained in the original listings have been reviewed to determine**~hether** they satisfy the listing criteria. A table (Appendix A) accompanying this background document indicates the disposition of each substance originally listed. For those that remain on §261.33(e) the basis for such inclusion is noted. A second table (Appendix B) indicates the basis for listing of the substances on §261.33(£). Also noted on these tables are references to the documentary material supporting the inclusions. These documents include health effects documents prepared in support of these regulations materials supporting RPAR actions, background documents supporting National Interim Primary Drinking Water Standards, materials of EPA's Cancer Assessment Group, data obtained from the NIOSH Registry of Toxic Effects, Sax's, Dangerous Properties


### 10of Industrial Materials and the Research and Development Compendium, Part I, Materials Classification document published by the Department of Transportation. In the case of chlorofluorocarbons, documents supporting regulations under the Toxic Substances Control Act also are included. Single List Two commenters found the three lists of chemicals**(Appendic~s** III, IV and V) confusing and urged that they be combined. The Agency concurs and has employed only one list for each category in the Final Rules, namely §§261.33(e) and (f). Listing of Off-Specification Materials One commenter urged that a clear distinction be made between off-specification materials which are reprocessed rather than discarded and that only the latter be regulated. The Final rule has been clarified to apply only to discarded material.

Listing of ORM-A Substances Several commenters objected to the listing, in Appendix IV, of chemicals that are classified by the Department of Transportation (DOT) as ORM-A materials. These commenters claimed that ORM-A materials are regulated by DOT because they possess r properties that interefere with transportation safety not because they are hazardous when disposed. An ORM-A material is one that has an anesthetic, irritating, noxious, toxic or other similar property which can cause extreme annoyance or discomfort to passengers and crew in the event of leakage during transportation (49 CFR 173.500(a)(l)J. The Agency concurs with this comment and has 11not listed chemicals in the Final Rules simply because they
are ORM-A materials. Rather than adopt the proposed list in toto, EPA has evaluated each substance in accordance with the criteria for listing. This review has resulted in a number of chemicals being listed as acutely hazardous in §261.33(e) and hazardous in §261.33(f) or dropped from the EPA lists of hazardous wastes because no data was available to the Agency to support such a listing. Another commenter objected to Appendix 

### IV, as a whole, because it listed chemicals that are hazardous in transportation and not necessarily hazardous at other times. The Agency has listed a number of chemicals in the Final Rules that DOT lists as Poison A and Poison 

### B materials. The basis for this listing, however, is not that they only pose hazards during transportation but rather that they are acutely toxic, satisfying the acutely hazardous criterion, and so present a threat to human health and the environment when discarded. Listing of Containers Several commenters were troubled by the inflexibility of the triple-rinse provision in the proposed listing of containers in §250.14(a). This provision excluded, as hazardous waste, containers of the listed chemicals that had been triple-rinsed. This procedure is an EPA recommended practice for pesticide containers (40 CFR 165.9) and also a part of several State programs (e.g., Washington, Oregon). Basically, these commenters suggested that there are other ways to effectively decontaminate containers. One suggested 

### 12rinsing**~ith** one-tenth volume of the container, but did not specify the**~:?e** of solution. Another recommended incineration but gave no**specification~.** Still another pointed out that the EPA registered label for the pesticide, Malathion ULV Concentrate, S?ecifies a rinsing solution and procedure that does not comport with triple rinsing as defined in the Proposed Rules. The Agency recognizes that there are a large number of ways for rinsing or otherwise decontaminating containers. Many of these wethods are unique to the type of chemical previously contained by the container; e.g., a specific solvent should be used. As such, in the final regulations, the Agency has allowed persons to use alternative methods to decontaminate containers. The person may,**ho~ever,** be required



### - to demonstrate that these methods are equivalent to triple rinsing. One commenter suggested that the weight of the container itself be considered in establishing the small quantity generator exclusion limits proposed in §250.29. EPA does not agree since the size of the container, i.e., those containers which may be used by the public for other purposes--e.g., trash cans, barbecue pits, etc.--is the real concern not the weight of the container. However, the Agency does consider the weight of inner liners to be an important factor in setting a de minimis quantity and, thus, has given consideration to the weight of such inner liners in establishing the small quantity cut-offs for small quantity generators.

13Listing of Spill Residues and Debris One comoenter urged that small amounts of contaminated spill clean-up residues and debris be excluded from the listing of these wastes under §250.14(a). The Agency has provided such
an exclusion of less than 100 kilograms (220 pounds) for aggregate amounts of residue and contaminated debris resulting from the cleanup of a spill of any commercial cleaning product
or manufacturing chemical intermediate having the generic
name listed in §261.33(e). This exclusion is provided in §261.5(c)(5) and is discussed in the following section of this document. Another commenter urged a more precise definition of spill clean-up debris to avoid including wrecked rail cars and damaged trucks as hazardous waste. The Agency does not know how to define debris to avoid the consequences noted by the commenter. It believes that it can rely on the reasonable implementation and enforcement of this provision by EPA and State personnel to avoid absurd results. The difficulty in providing a precise definition is that occasionally large equipment is severely contaminated by spilled material. For example, this could
occur in a spill of toxaphene which is an extremely toxic chemical. The Agency assumes however, that in virtually all cases, heavy equipment can be decontaminated and need not become part of contaminated debris. If it cannot be decontaminated it must be treated as a hazardous waste.



### 14Modification of the List of Chemicals Several commenters urged that procedures be available to add to or delete from the list of chemicals in Appendices III, IV, V and XII. The Agency believes that revisions to the list of chemicals (now in §§261.33(e) and (f)of the Final Rules) should be achieved only through rulemaking. For this purpose and to enable modifications to other parts of the Subtitle C regulations, the Agency has provided procedures for petitioning the Agency to make revisions through rulemaking. These procedures
are established in §260.20 of the Final Rules. Importantly, deletions from the lists of chemicals in Appendix VIII and §261.33 are not available through the delisting procedures established in §260.22. The §260.22 de1isting procedures are designed and intended to apply to individual generation sites to enable the administrative delisting of wastes that are fundamentally different from those listed in §§261.31 and 261.32. The primary difference would be that the waste did not contain the**const~tuent** of concern or contained it in such low concentrations that the waste was not hazardous. Other information could be provided by the generator to demonstrate significant differences in the persistence, bioaccumulation potential or mobility potential of the hazardous constitutent
or significant differences in the quantity or composition of the wastes. The Agency does not believe that the chemicals and commercial products covered by §261.33 present many opportunities for fundamental differences because as commercial procucts their toxicity, concentration of toxic species, 15persistence, degradation potential and bioaccumulation potential are fairly well defined. Spill residues of these materials might vary in concentration, of course. This fact led the Agency to establish larger quantity cutoffs for spill residues of the acutely hazardous materials listed in §261.33(e). Delisting procedures

are not an appropriate manner of

**h~ndling** spill residues and debris because they generally present unique, rather than recurring, situations.

16RECONSIDERATION OF THE PROPOSED RULES Criteria for Listing As discussed in the Background Document covering the criteria for listing hazardous waste and in response to the overall criticism by commenters on the proposed criterion for listing hazardous waste in §2SO.l2(b)(2) of the Proposed Rules, the Agency has expanded and added considerable specificity to the criteria for listing hazardous waste in §261.11 of the Final Rules. One of the final criteria (§26l.ll(a)(2)), enables the Agency to list acutely toxic or otherwise acutely hazardous wastes in Subpart D and designate these wastes as Acute Hazardous Wastes (having a Hazard Code of H). This criterion enables the Agency to list a hazardous waste because 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 LDSO toxicity (rat) of less than SO milligrams per kilogram, an inhalation LCSO toxicity (rat) of less than 2 milligrams per liter, or a dermal LD50 toxicity (rabbit) of less than 200 milligrams per kilogram or is otherwise capable of causing or significantly contributing to an increase in seriously irreversible, or incapacitating reversible, illness. This change in the final criteria for listing establishes an explicit basis for the listing of hazardous waste in §261.33(e).*

* However, this criterion also may be used by the Agency to list hazardous wastes in §§261.31 and 261.32.

17The chemical substances listed in §261.33(£) do not meet the criteria for listing as an acutely hazardous**was~e** but rather meet the criterion for listing, either because theY satisfy §26l.ll(a)(l), exhibiting identified characteristics,
or §26l.ll(a)(3), satisfying the criteria for listing as toxic. This latter criterion directs the Administrator to consider a list of factors to determine whether a waste containing toxic constituents listed in Appendix VIII is hazardous. The most important of these factors, and in the
case of discarded or spilled commercial products, the decisive factor, is the nature of toxicity presented by the constituent of concern. This is because there is substantial indentity between the constituent of concern and the discarded product. In fact, in most cases the waste (i.e., the discarded product) essentially is the constituent of concern. Thus being the case, the remaining factors in §26l.ll(a)(3) are largely irrelevant to a listing determination. In listing materials in §261.33(f), therefore, the Agency either will indicate that the listed material exhibits a characteristic, or will indicate the nature of toxicity posed by the constituent of concern.



### 18Changes in the Listing of Chemicals In response to comments, the lists of chemicals proposed
as Appendices III, IV, V and XII have been combined and simplified. Section 261.33(e) is a listing of commercial chemical products or manufacturing chemical intermediates which because they pose
a severe acute hazard in small quantities, must be managed
as a hazardous waste in quantities at which most hazardous waste is exempted. Section 261.33(f) consists of hazardous substances for which the §261.5(a) and (b) small quantity exclusion limit is believed to be adequate to protect human health and the environment. In addition, the Agency has substantially modified the final list of chemicals. First, it has listed only commercial chemical products or manufacturing chemical intermediates, chemicals that
are not normally discarded. The reason for this is that §261.33 is exclusively designed to regulate these materials in the event they are discarded or intended to be discarded,
are discarded as off-specification materials, are discarded
as residuals in containers or inner liners of containers or
are spilled. Where the Agency's interest in a chemical is because it is a hazardous constituent of a solid waste, the Agency will list the wastes or classes of wastes that typically
or frequently contain such chemicals in §§261.31 and 261.32. The principal effect of this approach has been to eliminate,
as a class, the chemicals listed in Appendix V which derived from a list of toxic chemicals that are typically found in induRtrial wastewaters, or as constituents of wastes.
19The second major change has been to make the listing of chemicals under §261.33 of the Final Rules comport to the listing criterion of §26l.ll(a)(2) and (a)(3) i.e., those wastes which present an acute hazard or present a hazard to human health if iQproperly managed. Commercial chemical products or manufacturing chemical intermediates are not normally discarded. However the Agency is concerned with controlling those chemicals which when discarded, no matter how infrequently, could**po~e** a potential hazard. The Agency, has thus restricted the present list of chemicals to only those which could present an hazard oniy to human health. Accordingly, under §261.33(e) only commerci·al chemical products or manufacturing chemical intermediates that have been found to be fatal to humans in low doses or, in the absence of data on human toxicity, have been shown in studies to have an oral LDSO toxicity (rat) of less than 50 milligrams per kilogram, an inhalation LCSO toxicity (rat) of less than 2 milligrams per liter, or a dermal LD50 toxicity (rabbit) of less than 200 milligrams per kilogram are**li~ted** in §261.33(e). This change has had the effect of removing the following groups from the proposed list: the ORM-A materials listed in Appendix IV of the Proposed Rules, the cancelled and RPAR review pesticides listed in Appendix III, and the known or suspected human carcinogens listed in Appendix XII of the Supplemental Proposed Rules.* Further, under §261.33(f) only

*This change has not removed the Poison A and Pbison B materials

listed in Appendix IV because these are substances that have an LDSO or LCSO toxicity that meets the criterion for listina. 0 20thnse coooercial chemical products or manufacturing chemical intermediates which may present a potential hazard to human health, if improperly managed and for which the Agency has sufficient data to make a determination are listed. Each chemical was individually reviewed to determine whether it met the acutely hazardous criterion of §26l.ll(a)(2), the toxic criterion of §26l.ll(a)(3), or met the identified characteristics of hazardous waste. In summary, the combined effect of the two changes described has been to convert the original list of about 300 chemicals listed in Appendices 

### III, IV, V and 

### XII of the Proposed Rules to 122 chemicals in §261.33(e) and 239 chemicals in §261.33(f). Several of the substances in the proposed rules, for which data was lacking, are currently undergoing review to determine whether listing on either §261.33(e) or §261.33 (f) is appropriate. Appendix A to this document provides a tabular display of these changes. Rationale for Selecting Acutely Hazardous Criteria The chemicals on the promulgated list under §261.33(e)
are listed because of one or more of the following criteria: 

### 1. acute oral toxicity 

### 2. acute inhalation toxicity 

### 3. acute dermal toxicity 

### 4. extreme reactivity (explosivity) 

# s. capable of causing or significantly contributing to an increase in serious irreversible, or incapacitating

**reversibl~,** illness

21Chemicals listed for acute oral toxicity have been found to either be fatal to humans upon ingestion of 

## < 100 mg/kg or to have an oral LDSO toxicity to rats of less than 50 milligrams per kilogram. Chemicals that have these levels of toxicity are extremely powerful poisons. For example, ingestion of less than
a teaspoonful of these chemicals would be fatal to an adult*. Additionally, lesser amounts can be expected to cause illness
or even death to children and to more sensitive members of the population. As can be readily surmised, indiscriminate disposal of such chemicals could be highly dangerous. Any number of injury scenarios could result; e.g., accidental contact and ingestion by children or pets (not unlike situations at Love Canal); contamination of worker's clothing and resulting ingestion of small quantities rubbed off the clothing; and inadvertent contamination of foods or drinking water, particularly from residuals in containers or from spills. Because of the acute toxicity of these chemicals, the Agency has concluded that they very definitely meet the listing criteria of §26l.ll(a)(2) and also §26l.ll(a)(3). The acute inhalation toxicity is based on an inhalation LCSO of less than 2 milligrams per liter. Chemicals having these levels of toxicity also are extremely effective poisons. 

### For example, less than 0.2 ounces of such a**mate~al** 

### are

*Based on toxicity to rats and humans being the same. The

human is considered generally to be more sensitive than the rat due to its higher surface to weight ratio. Using a surface-area weight relationship for the two species, the rat is expected to generally be only one-sixth as sensitive as the adult human. 

### 22sufficient to lethally contaminate the air of an average size (12' by 12' by 8') room. Indiscriminate disposal of such chemicals could result in any number of dangerous scenarios; e.g., contamination of the air in refuse collection bins and trucks posing a danger to workmen; subsurface migration of such chemicals into the basement of**ho~es,** resulting in injury to the inhabitants, such as occurred at Love Canal; contamination of the air of enclosed structures**~hen** salvaged containers having residues of these chemicals are opened; and injurious human exposure to these chemicals in certain spill
or spill clean-up situations. Because of the acute toxicity of these chemicals, the Agency has concluded that they also, very definitely, meet the listing criteria of §26l.ll(a)(2) and also §26l.ll(a)(3). The acute dermal toxicity is based on a skin absorption LDSO toxicity of less than 206 milligraos per kilogram. Like those above, chemicals having these levels of toxicity are extremely poisonous and both indiscriminate and uncontrolled discriminate disposal can pose injury scenarios**si~ilar** to those described above. In fact, the dermal route of exposure is of major concern since, like inhalation, it can readily occur, as for example, as a result of contact of children and pets with the substance and contamination of worker's clothing. Accordingly, the Agency has chemicals meet the listing criteria of §261.1l(a)(3).

23

## conclu~d that these

# §261.1~a)(2) and alsoThe Agency has**us~d** three sources of toxicological informatio1 in determining the LD50 and LCSO toxicities of chemicals. These are:**~esearch** and Development Compendium, Part :, Materials Classification, Volume II Toxic & Corrosive Materials, 1976, 

## u.s. Department of Transportation, Office of Hazarjous Materials Operations, Materials Transportation Bureau, Washington, DC 20590. Sax, N. Irving, Dangerous Properties of Industrial Materials, Fourth Edition, 1975, Van Nostrand Reinhold,**~ew** York, NY 10001. Registry of Toxic Effects of Chemical**Subs:a~ces,** Publication Number 73-104-E,**Septe~ber** 1977, Na:ional Institute of Occupational Safety and Health,**Ci~cinnati,** OR 45226. In using these references, the Agency has only used citations based on observed toxic effects in humans, rats, and rabbits. The Agency has thus far been sparing in exercising its authority to list substances "capable of causing or significantly contributing to an increase in serious irreverisble, or incapacitating reversible illness." In the final rule, three compounds

-- ammonium picrate, 2,4,6-trinitrophenol, and tetranitromethane --are listed in §261.33(e)

# o~this basis. These compounds are extremely reactive; they explode under standard temperatures and pressures. A mild shock is**suffi~ient**
24to cause an explosion. The Agency therefore believes that these compounds are properly includible as acutely toxic wastes, and should, when discarded be subject to the lower exclusion limit. Listing of Containers* Section 261.33(c) of the Final Rules has been expanded to address the comments on triple rinsing. As now written, triple rinsing with a solvent capable of removing the**com~ercial** chemical product or manufacturing chemical intermediate is the standard for Subtitle C regulations by which a container can be rendered non-hazardous. The limit for containers only applies to the acutely hazardous materials listed in §261.33(e) because the residue of these substances in containers may be lethal in such quantities. For the other hazardous materials listed in §261.33(f), the containers may not prove hazardous, and EPA lacks the data to take a general position on this. The regulation does not specify the type of solvent to be used in triple rinsing containers. Different solvents**~ay cle~nse**  chemical product containers with varying results, and it was impossible for EPA to require the use of a particular solvent for all containers. In this respect, this Rule is similar to the general disposal requirements for pesticide containers

# ~*~N~o--t_e_:--~C-e_r_t-ain portions of the discussion in this

# ~ ction have been supreceded by clarifying amendments deliing with containers, container liners, and the contained residue. See 45 FR 78254 (November 25, 1980), adopting a new §261.7 and a revised §261.33(c).



### 25

### promulgated under FIFRA. (See 40 CFR §165.9(a)). In response to comments, EPA has increased the flexibility Jf 

### the Rule by allowing a person to use alternative methods to decontaminate
a container, if the person can demonstrate that such methods achieve equivalent results. For example, government regulations may authorize a person to incinerate combustible containers under certain conditions (cf. 40 CFR §165.9(a)), or a manufacturer may recommend that such disposal be employed. Several commenters noted that certain paper containers could not be triple-rinsed. EPA did not, through these regulations, want to prevent people from using these disposal techniques. The Agency is aware that requiring "equivalent" decontamination procedures without specifying solvents or procedures provides, at best, a vague standard. The Agency believes that, in most cases, this rule, if interpreted sensibly, provides sufficient guidance to both the regulated community and Agency enforcement personnel. For most containers, the manufacturer will specify a particular solvent, or it will be assumed that water is the appropriate solvent. Unless the knowledge is already extant--e.g., through manufacturer recommendations--it would appear that most persons would triple-rinse with water or other dilution liquid rather than conduct tests to determine the equivalency of their procedures. Accordingly, EPA expects that this alternate procedure will not be widely used and that triple-rinsing will be the standard cleansing procedure.

26Public comments on Part 250, Subpart D of the Proposed Rules raised qu·:stions about how the regulations should deal with inner liners of containers and containers from which the inner liners have been removed. The resulting reconsideration is reflected in §261.33(c) as well as in other parts of the regulation. Basically, inner liners from containers used to hold chemicals listed in §261.33(e) are treated like containers and are hazardous wastes when discarded unless triple rinsed or equivalently decontaminated.* On the other hand, containers from which the inner liner has been removed need not be considered as a hazardous waste when discarded. Listing of Spill Residues and Debris As previously discussed and in response to comments, the final listing of spill clean-up residues and debris has been modified to clarify that only contaminated debris, including contaminated water and soil, is covered. Also, a provision has been added to limit this listing to aggregate amounts of clean-up residues and debris that exceed 100 kilograms (220 pounds). This de minimis quantity is based on the Agency's best judgment of an amount that will not overburden the Subtitle C hazardous waste management system, (including its implementation and enforcement) and, further, will not pose a significant risk to human health or the environment. Based on the Agency experience with the cleanup of spills,

* Typically, inner liners are not decontaminated and reused; they are removed from the container and discarded. 27

### 100 kilograms--half a drum--for acutely hazardous wastes is
a very small amount and would only apply to very small or very limited spills. Given the acute hazardousness of the chemicals listed in §261.33(e), the**Age~cy** 

### does not believe this quantity is too low. In fact, there may be cases where lesser amounts pose substantial hazard. In such cases, the Agency believes it can rely on the discretion exercised by the trained personnel that typically respond to spills to require proper management of these lesser amounts.

28**D~** Minimis Quantity Cut-Off for Small**Q~antities** of Acutely Hazardous Materials As discussed in a separate Background Document, §261.5 of the Final Rules excludes from Subtitle C regulation hazardous wastes that are generated, treated or disposed of in quantities less than 1,000 kilograms (2,200 pounds) in any 30-day period by individual small quantity generators. !he Final Rules further provide that this 1,000 kilogram exclusion eventually will be lowered to 100 kilograms (220 pounds)**i~** any 30-day period. The Agency has concluded that, whereas this exclusion may be appropriate and justified.as a general exclusion for the variety of hazardous wastes listed in Subpart D, it is not appropriate for the acutely toxic and hazardous wastes listed in §261.33(e). These quantity limits do apply to chemical products listed in §261.33(f). Consequently, §261.5(c) of the Final Rules provides lesser exclusion limits for the commercial products listed in §261.33(e). For commercial chemical products,**~anufacturing** chemical intermediates and off-specification species listed in §261.33(e), the de minimis quantity cut-off is one**~ilogram** (2.2 pounds) in any calendar month, as provided in §261.5(c). Small quantity generators who discard**m~re** than one kilogram of these chemicals in any calendar month period must designate such chemicals as hazardous wastes and these must be managed
as hazardous wastes by the generator and all other persons (transporters and owners or operators of off-site treatment, storage or disposal facilities). This quantity, in the Agency's best**jud~ment,** will reduce the risk to human health 

### 29

### and the environment, from the discarding of these wastes, to a very low level (the limit of only one kilogram is a stringent requirement for persons handling these products in the course of business). The Agency recognizes that lesser quantities of these chemicals can be hazardous. As indicated above, only a few ounces of these chemicals can be lethal or injurious. At· the same time, the Agency recognizes the**implementatio~** 

### and enforcement of small quantity requirements will be difficult. It will be difficult to inform all potential generators of the final requirements and it will be virtually impossible to monitor and police the discarding of small quantities. The Agency has balanced these two competing consequences and has concluded that the quantity selected is
a reasonable compromise, particularly when it applies only
to 

### small quantity generators. These de minimis quantities do not apply to other generators who must manage all quantities of §261.33 commercial products as hazardous wastes. For containers (except the inner linP.r of containers that have been removed) that are not triple rinsed or otherwise decontaminated, §261.5(c)(3) provides that the de minimis quantity I 

### threshold is 

### a container size of 20 liters 

### (5.3 gallons). Persons who discard**larg~r** 

### containers must manage them as hazardous waste. The Agency chose 20 liters because it believed that there was a larger probability that such containers, when discarded, might be salvaged for use as trash cans, barbecue grills, storage containers and other

30items where human exposure and consequential injury could
occur. It reasoned that there would be a lesser probability of salvaging of small containers because there is less utility for such containers. For inner liners of containers which have been removed and
are discarded; §261.5(c)(4) provides a de minimis quantity cut-off of 10 kilograms (22 pounds). The same reasoning as used for the pure chemicals and off-specification materials was used except that adjustment was made for the assumed weight of the liner. Again, the decision was based on the Agency's best estimate about the probable risk of injury. For the clean-up residues and debris from spills, §261.5(c)(5) provides a 100 kilogram (2,200 pound)**~minimis** quantity cut-off (per spill event). The rationale for this choice is discussed previously in this document.



### 31Bibliography

1. 

## u.s. House of Representatives, Report 94-1491, P• 22. 2. Decontamination of Non-Combustible Agricultural Pesticide Containers by Removal of Emulsifiable Parathion by Dennis P. H. Hsieh, Thomas E. Archer, Douglas M. Munnecke, and Francis E. McGowan, Environmental Science 

### & Technology, 6:9, September 1972, p. 826 3. Detoxication of Metal Drums from Emulsifiable Concentrate Formulations of Parathion, by E.E. Archer and D.P.H. Hsieh. Pesticide Science, 4, 69-76, 1973. 4. Pesticide Container Decontamination by Aqueous Wash Procedures, by J. G. Lamberton, P.A. Thomson, J.M. Witt, and H. L. Deinzer, Bulletin of Environmental Contamination and Toxicology, 16:5, November 1976. 5. "Drum Rinse Efficiency and Drum Disposal," a paper presented by the 

## u.s. Air Force at the Herbicide Orange disposal (public hearing on April 7, 1977).



### 32APPgNDIX A BASIS FOR INCLUSION ON §261.33(e) Source of Toxicity Data (1) Registry of Toxic Effects of Chemical Substances, National Institute for Occupational Safety nnd Health, Cincinnati, Oil 45226, September 1977. (2) Research and Development Compendium, Part 1 Materials Classification, Volume II Toxic and Corrosive Materials, 

## u.s. Department of Transportation, Washington, DC 20590, April 1976. (3) Dangerous Properties of Industrial Materials, Flftll Edition, N. Irving Sax, Van Nostrand Reinhold, New York, NY 10020
Final Disposition and Reason for Dropping from 261.33(e) or Appendix VIII X The substance has been included under the indicated section of the regulation. C Material is under consideration for possible f11ture listing in 261.33(e) or Appendix VIII NS Description of material is not specific enough to permit a generator of solid waste to unambiguously identify a given Industrial matP.rlal as one of the suhstances**in~lurled** in the listing. F Available toxicological information indicates that the substance does not meet the criteria for listing under Appendix VIII or 261.33(e).
Reason for Listing Oral
Inhalation
Oermal Explosive Material has been shown to be fatal to humans with an oral dose of**~100** mg/Kg or has an oral rat LDso of**~SO** mg/Kg. Haterial has been shown to be fatal to humans exposed to concentrations of (2 mg/1 or the material has an inhalation rat LCso of**~2** mg/1/hour. Material has been shown to be fatal to humans exposed with a dermal exposure of (200 mg/Kg or to has a dermal rabbit 

## LDso of**~200** mg/Kg. Material**i~** either a**1~s~** A or Forbidden Explosivj 3 as defined by the U.S. Department of Transportation, Was11ngton, DC l0590.Com111e**•~c** l n l l'rocl ue t T ToK.lc Substances Contn)l Aet Clwmlcal**Sub~tances** lnventory, May 1979, 

## u.s. Environmental Protection Agency,**Ha~;hlnt~ton,** DC 20t'!<i0 S**Dau~t!ruus l'ropel~tles**  nl: Lllllust:l'lnl.**~lal·~l"lnls,** Fll'th t·:dltlon, N. Irving SaK, Van Nontrnnd Relnhold, New York, NY LtJ020. I' l>tHd.gnntes a**mnlt~rlal regi:H:ea·~..~.J**  wllh lhe IJ.S.**l~nvironmentnl** Protection**AJ~t!ney** for mw as 11 Jll'H t I.e I de. FDA Designates a matet·Lnl approved fot· m:,• an a tlrug 

### hy the 

### u.s. Food and Drug Admlnistrntlon. I> l>esl.gn<ttes a materf.nl. ll.sLcd hy 11<1111<' 111 ,-,!gulatlom; of the Department of Tntnsportntl.on (49 CFR 172.101,**"Tahh~** of llnza•·dou:>**ll.ll.•~•·ials").** liSA!-' Unlted States Alr**F•>•~~~~~** nalllt<JJ.'Y pnllllll't designation1\1'**I'I~NI>** I X I. 1.1 OF PItO I'O:)IW**IU~GIIl..AT** I ON



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_________. _____ IAPPENDIX B
BASIS FOR INCLUSION ON §261.33(f)*

HAZARDO::s WASTE

**NU~BER**

UOOl U002 U003 U004 

## uoos U006 U007 U008 U009 UOlO

UOll U012 U013 1014 "/;015 R'SASON FOR LISTING
1,4

4 1,4

1 3 1,4

1 4 1,3

3

3 4 1 3 3
(1) OSW Health Effects Profile (2) NIPDWS Substance (3) CAG Carcinogen 

### (4) Meets Criteria for (I), (C), or (R) (5) RPAR Substance SUB

**STA~1CE** Acetaldehyde (I) Acetone (I) Acetonitrile (I,T) Acetophenone 2-Acetylaminoflourene Acetyl chloride (C,T,R) Acrylamide Acrylic acid (I) Acrylonitrile6-Amino-l,la,2,8,8a,8b-hexahydro8-(hydroxymethyl)-8-methoxy-Smethylcarbamate azirino(2' ,3' 

### :3,4) pyrrolo(l,2-a)indole-4, 7-dione (ester) Amitrole Aniline (I) Asbestos Auramine Azaserine

*

**~nless other~ise**  specified, compounds are listed for their toxic ?roper ties.HAZARDOUS :STE NUMBER


### U016 U017 U018 U019 U020 U021 U022 U023 U024 U025 U026 U027 U028 U029 U030 U031 U032 U033 U034 U035 U036 U038 REASON FOR LISTING
3 1 

### 1,3

1 4 1 1 4 1 1, 3

3 1 1 1 1 2 3 4 1 3 

### 1,3,5

3,5
(1) OSW Health Effects Profile (2) NIPDWS Substance (3) t:AG Carcinogen (4) Meets Criteria for (I), (C), or (R) (5) RPAR Substance SUBSTANCE Benz[ c) acridine Benzal chloride Benz[ a] anthracene Benzene Benzenesulfonyl chloride (C,R) Benzidine Benzo[a]pyrene Benzotrichloride (C,R,T) Bis(2-chloroethoxy)methane Bis(2-chloroethyl) ether N,N-Bis(Z-chloroethyl)-2-naphthylamine Bis(2-chloroisopropyl) ether Bis(2-ethylhexyl) phthalate Bromomethane 4-Bromophenyl phenyl ether n-Butyl alcohol (I) Calcium chromate Carbonyl fluoride (R) Chloral Chlorambucil Chlordane Chlorobenzilate



### 71HAZARDOUS WASTE Nt"MBER 

### U039 U040 U041 U042 U043 U044 U045 U046 U047 U048 U050 U051 U052 U053 U054 U055 U056 U057 U058 U059 

# J 060 061 REASON FOR 

### LISTING 1 1 1 1 

### 1,3 1,3,4

1,4

3 1 1 

### 1,3 1,3

1 

### 1,4

1 4 4 4 3 3 1 

### 1,3



### (1) OSW Health Effects Profile (2) NIPDWS Substance (3) CAG Carcinogen 

### (4) Meets Criteria

**fo~** (I), (C), 

### or (R) (5) RPAR Substance 

### SUBSTANCE p-Chloro-m-cresol

**Chlorodibr~momethane** 

### 1-Chloro-2,3-epoxypropane 2-Chloroethyl vinyl ether Chloroethene Chloroform (T) Chloromethane (I,T) Chloromethy1 methyl ether 2-Chloronaphthalene 2-Chlorophenol Chrysene Creosote Cresols Crotonaldehyde (I) 

### Cresylic acid Cumene (I) Cyc1ohexane (I) Cyclohexanone (I) Cyclophosphamide Daunomycin DDD DDT

72

### HAZARDOUS WASTE NUMBER U062 U063 U064 U065 U066 U067 U068 U069 U070 U071 U072 U073 U074 U075 U076 U077 U078 U079 U080 U081 U082 U083 U084 

### REASOK FOR LISTING 3 1 5

3 3 1 3 3 1 1 1 1 1 1 I 3

4 1 1 1, 3

1 1 1 1 1 1,4

1 

### SUBSTANCE Dial late Dibenz[a 1 h]anthracene Dibenzo[a 1 i]pyrene Dibromochloromethane 1,2-Dibromo-3-chloropropane 1 1 2-Dibromoethane Dibromomethane Di-n-butyl phthalate 1 1 2-Dichlorobenzene 1 1 3-Dichlorobenzene 1,4-Dichlorobenzene 3,3'-Dichlorobenzidine

1,4-Dichloro-2-butene 

### (I) Dichlorodifluoromethane 1,1-Dichloroethane 1,2-Dichloroethane 1,1-Dichloroethylene trans-1 1 2-Dichloroethy1ene Dichloromethane 2,4-Dichlorophenol 2 1 6-Dichlorophenol 1,2-Dichloropropane (I) 1,3-Dichloropropene (1) (2) (3) 

### (4) OSW Health Effects NIPDWS Substance CAG Carcinogen Meets Criteria for (I), (C),.or (R) RPAR Substance Profile

(5) 73HAZARDOUS WASTE NUMBER REASON FOR LISTING SUBSTANCE 

### U085 U086 U087


### U088 U089 U090 U091 U092 U093 U094 U095 U096 

### U097 U098 U099 U100 UlOl 

### U102 U103 UlOS 

# Jul06
Ul07

(1) ( 2) (3) ( 4) ( 5) 

### 3 , 4 3 1
1 3 3 3 4 3 3 3 4 3 3 3 1 1 1 3 1,3

1 1



## osw Health Effects

**~~IPDWS** Substance CAG Carcinogen Meets Criteria for (I) , (c) , or (R) RPAR Substance 1,2:3,4-Diepoxybutane (I,T) 1,2-Diethylhydrazine 0,0-Diethyl-S-methyl ester of phosphorodithioic acid Diethyl phthalate Diethylstilbestrol Dihydrosafrole 3,3'-Dimethoxybenzidine Dimethylamine (I) p-Dimethylaminoazobenzene 7,12-Dimethylbenz[a]anthracene 3,3'-Dimethylbenzidine alpha,alpha-Dimethylbenzylhydroperoxide (R) Dimethylcarbamoyl chloride 1,1-Dimethylhydrazine 1,2-Dimethylhydrazine Dimethylnitrosoamine 2,4-Dimethylpllenol Dimethyl phthalate Dimethyl sulfate 2,4-Dinitrotoluene 2,6-Dinitrotoluene Di-n-octyl phthalate

Profile

74

### HAZARDOUS REASON FOR aSTE 

### NUMBER LISTING


# - SUBSTANCE Ul08 3 1,4-Dioxane Ul09 3 1,2-Diphenylhydrazine UllO 4 

### Di-n-propylamine (I) Ulll 3 Di-n-propylnitrosamine Ull2 4 Ethyl acetate (I) Ull3 4 Ethyl acrylate (I) Ull4 3 Ethylenebisdithiocarbamate Ull5 3' 4 Ethylene oxide (I,T) Ull6 3 Ethylene thiourea Ull7 4 

### Ethyl ether (I) Ull8 1 Ethyl methacrylate Ul19 3 Ethyl methanesulfonate Ul20 1 

### Fluora::1thene Ul21 1 Fluorotrichloromethane Ul22 1,3 Formaldehyde Ul23 4 

### Formic acid (C,T) Ul24 4 Furan (I) Ul2 5 4 

### Furfural (I) Ul26 3 Glycidylaldehyde Ul27 1,3 Hexachlorobenzene IU128 1,3 Hexachlorobutadiene Ul29 1,3 Hexachlorocyclohexane (1) 

### OSW Health Effects Profile (2) 

### NIPDWS Substance ( 3) 

### CAG Carcinogen ( 4) 

### Meets Criteria for (I) , (c) ' 

### or (R) ( 5) 

### RPAR Substance 75H;..ZARDO t:S .,-\ST:::

**~UMBER**

Ul31 Ul32 Ul33 U134 U135 Ul36 Ul37 U138 Ul39 U140 U141 U142 Ul43 U144 Ul45 Ul46 Ul47 U148 U149 U150 U151 U152 ?.Er.SON FOR LISTING
1 1' 3

1 3,4

4 1 4 1 , 3

3 3 4 3 3 3 1 , 2 ' 5

1 , 2 1,2 1' 2' 4 4 1 3 1 4 (1) OSW Health Effects Profile (2) NIPDWS Substance (3) CAG Carcinogen 

### (4) Meets Criteria for (I), (C), or (R) (5) RPAR Substance SUBSTANCE Hexach1orocyclopentadiene Hexachloroethane Hexachlorophene Hydrazine (R,T) Hydrofluoric acid (C,T) Hydrogen sulfide Hydroxydimethyl arsine oxide Indeno(l,2,3-cd)pyrene Iodomethane Iron Dextran Isobutyl alcohol Isosafrole Kepone Lasiocarpine Lead acetate Lead phosphate Lead subacetate Maleic anhydride Maleic hydrazide Malononitrile Melphalan Mercury Methacrylonitrile (I)



### 76

### HAZARDOUS WASTE 

### NUMBER 

### Ul53 Ul54 Ul55 Ul56 Ul57 Ul58 Ul59 Ul60 Ul61 

### Ul62 Ul63 

### Ul64 Ul65 Ul66 

### Ul67 Ul6 8 

### Ul69 Ul7 0 Ul7 1 

### Ul7 2 

### Ul73 Ul74 

### Ul75 Ul7 6 REASON FOR LISTING 4 

### 1,4

3 4 3' 4

3 1 '4

4 1 

### 1,4

3 3 1 1 3 3 1, 4

1 4 3 3 

### 1,3 1,3

3 

### SUBSTANCE Methanethio1 (I) Methanol (I,T) Methapyrilene Methyl chlorocarbonate (I) 3-Methylcholanthrene 4,4'-Methylene-bis-(2-chloroaniline) Methyl ethyl ketone 

### (I,T) Methyl ethyl ketone peroxide (R) Methyl isobutyl ketone Methyl methacrylate (R,T,I) N-Methyl-N'-nitro-N-nitrosoguanidine Hethylthiouracil !>laphthalene 1,4-Naphthoquinone 1-Naphthylamine 2-Naphthylamine Nitrobenzene 

### (I,T) 4-Nitrophenol 2-Nitropropane 

### (I) N-Nitrosodi-n-butylamine N-Nitrosodiethanolamine N-Nitrosodiethylamine N-Nitrosodi-n-propylamine N-Nitroso-n-ethylurea (l) ( 2) (3) ( 4) 

### OSW Health Effects Profile NIPDWS Substance

( 5) 

### CAG Carcinogen Meets Criteria for (I), (C), 

### or (R) RPAR Substance 

### • 

### 77

### liAZARDOUS

..

**~STE** 

### NUMBER
U177 U17 8 U179 Ul80 Ul81 Ul82 Ul83 Ul84 Ul85 U186 

### u187 Ul88 

### Ul89 Ul90 

### Ul91 Ul92 

### Ul93 Ul94 

### Ul96 

# j 197 200 U201 U202 **REASO~;** ?OR 

### LISTING
3 3 3 3 3 1 1 1 1, 3, 5 4 3



## , 

# .. 4 1 1 3 3 4 1 1 3 1 3 (1) 

### OSW Health Effects Profile 

### (2) JIPDWS Substance (3) 

### CAG Carcinogen (4) 

### Meets Criteria for (I), (C), 

### or 

### 0.) (5) RPAR Substance 

### SUBSTANCE N-Ni:roso-n-methylurea N-Nitroso-n-methylurethane N-Nitrosopiperidine N-Nitrosopyrrolidine 5-Nitro-o-toluidine Paraldehyde Pentachlorobenzene Pentachloroethane Pentachloror.itrobenzene 1,3-Pentadiene (I) Phenacetin Phenol Phosphorus sulfide (R) Phthalic anhydride 2-Picoline P.ronamide 1,3-Propane sultone n-Propylamine (I) Pyridine Benzoquinones Reserpine Resorcinol Saccharin

78

### HAZARDOUS :s!E 

### NUMBER 

### 11203 U204 U205 U206 U207 U208 U209 U210 U211 C212 U213 U214 

### U215 U216 

### U217 U218 U219 U220 U221 U222 

### uS/23 w24 U225 REASON FOR LISTING 

### 1,3

2 

### 1,3,4 3 1, 3 1, 3

1 1 1 1 4 

### 1,4 1 '4 1 '4 

### i , 4

3 3 1 1 3 1 

### 1,3

1 

### SUBSTANCE Safrole Selenious acid Selenium sulfide (R,T) Streptozotocin 1,2,4,5-Tetrachlorobenzene 1,1,1,2-Tetrachloroethane 1,1,2,2-Tetrach1oroethane Tetrachloroethene Tetrachloromethane 2,3,4,6-Tetrachlorophenol Tetrahydrofuran (I) Thallium 

### (I) acetate Thallium (I) 

### carbonate Thallium 

### (I) chloride Thallium (I) 

### nitrate Thioacetamide Thiourea Toluene Toluenediamine a-Toluidine hydrochloride Tolylene diisocyanate Toxaphene Tribromomethane (1) OSW Health Effects Profile (2) 

### NIPDWS Substance 0) 

### CAG Carcinogen (4) 

### Meets Criteria for (I), (C), 

### or (R) (5) RPAR Substance 7 9

### HAZARDOUS t.JASTE 

### !'l'U

**~1B** 

### ER REASON FOR LISTING SUBSTANCE 

### U226 1 1,1,1-Trichloroethane 

### U227 1 1,1,2-Trichloroethane 

### U228 1,3 Trichloroethene 

### U229 1

**Trichlorofluorom~thane** 

### U230 1 2,4,5-Trichlorophenol 

### U231 1,3 2,4,6-Trichlorophenol 

### U232 5 2,4,5-Trichlorophenoxyacetic acid 

### U233 2 2-(2,4,5-Trichlorophenoxy)propionic acid 

### U23.::. 1, 4 Trinitrobenzene (R,T) 

### U23 5 3 Tris(2,3-dibrocopropyl) phosphate 

### U236 3 Trypan blue 

### U237 3 Uracil mustard 

### U238 3

**Uretha~e** (Ethyl carbamate) U239 1, 4 Xylene



### (1) OSW Health Effects Profile (2) NIPDWS Substance (3) CAG Carcinogen (4) Meets Criteria for 

### (I), (C), or (R) (5) 

### RPAR Substance

80

### Response To Comments on Interim Final Regulations
On May 19, 1980, as part of its final and interim final regulations**implementin~** 

### Sect1'on 3001**~** 

### RCRA

- . o... ) 

### the Agency promulgated as §261.33 the regulations discussed in the first part of this background document. This regulation consists of
a list of 361 commercial chemical products or manufacturing chemical intermediates which are hazardous wastes if they
are discarded or intended to be discarded (see 45 FR 33124- 33127). Section 261.33 also lists as hazardous wastes offspecification**va~iants** 

### and the residues and debris from the clean-up of spills of these 361 chemicals, if 

### discarded or intended to be discarded (§261.33(b) and (d)). Finally, §261.33 lists as hazardous wastes the containers and inner liners of containers that have held 122 of these chemicals (those listed in paragraph (e)), if they are discarded or intended to be discarded, unless they have been triple. rinsed with an appropriate solvent or have been decontaminated in
an equivalent manner. (§261.33(c).) The regulation also
covers materials not specifically listed by name, so long
as they "have the generic name listed in paragraphs (e) or 

# rr'

...... (§261. 

### 33(a), (b), (c)' and (d).) \) The Agency received a large number of comments on this regulation. The comments for the most part challenged the Agency's decision to list particular substances as hazardous wastes. Some questions also were raised regarding the scope 

### of the regulation, particularly with respect to trade products 81containing a listed chemical but not specifically listed themselves. Comnents also were submitted concerning the difficulty of determining the chemical constituents of unlisted trade
name products. Finally, many questions have been received regarding the interpretation of §261.33. The Agency responded to these comments in the preamble to the final regulations (45 FR 78532, November 25, 1980). That preamble set forth the Agency's disposition of all listings of particular substances, and the basis for the Agency's decision. The Agency also clarified the scope of coverage of trade products, and provided guidance as to how to determine whether a given tradename product is regulated under §261.33. Certain interpretative questions raised regarding §261.33 also were addressed. The Agency has little to add to these responses. We have expanded slightly our responses to the comments on listings of specific chemicals, and these comments are included in this background document. the remaining responses. As stated, the preamble contains

82I.**Finalization~emical** Product Names in §261.33(e) and (f) A. The changes made in response to comments on specific Hstings are described summarlly belo'"· Hore detailed explanations are contained in the revised Background Document. 

### EPA Hazardous l-laste Number P019 and U160 Compound Name 

### I 2-Butanone peroxide (Methyl ethyl 

### I ketone peroxide) 

## I I 

### I I 

### I I I I I I 

### I I 

### I I I

83 Actl.on Taken Deleted from §261.33(e). Remains in §261. 33( f). Added (R) deslgnatlon. Reason 

### I 2-Butanone peroxide and methyl ethyl 

### I ketone peroxJde, synonyms for the 

## I same compound, were mlstakenly fnclu-· 

### I ded in both the §261. 33(e) and (f) 

### I lists. This compound cloes not meet 

### I the cirteria for listing as an 

### I acutely hazardous waste. However, 

### I the compound's oral (rat) LOSO of 

### I 484 mg/kg qualifies it for contlnuecl 

### I inclusion in §261.33( f). Moreover, 

### I 2-butanone peroxide presents A suh

### 1 stantlal hazard if improperly managed 

### I due to its severe reactivity. Being 

### I a strong oxidizer an explosion could 

### I occur if the materials such as would 

### I be found in trash for example. 

### Ipn·l

**:~**

1'01')

P0')2 

### I Cyanogen hromlne 

### I 

### I I I I I I I 

### I I I I I 

### I I I I 

### I I I I 

### I I I 

### I I 

### I I 

### I I I I I I 

### I I 

### I 

### I I I I I \ 2 •4-D1 chl.or.ophenoxyace l f e ill: 1
..-1 (2.4-Dl

**gthylcyatll.dt~**

**I~** t:

**hylerH~tl** tam l ne **~loved** fro•n tl:Ud. 11( e) to

**~** 7. h I • 1 .l ( f)

Ho'''-'" from K:>fll.11(e) to

**~** :' r. I • 1·\ ( f) antl 11::1 Jqg t·lat·l fl,••l



### ne l

**~~** t P.cl The LC'lO valut• clt1!cl Ln n•tppot·t of the Hay I<Jth pt·o•nulp,atlon

**w:t~>** Incorrect. Accor<llnr, to JH'I.J dCI ta, the compound

**dot~S** nor: llll'f' I the critet·ia for listing as an acutely toxic waste. lloHevct·, cyanogen hromlde's Jnhnlatlon (rat) l.C'lO of lt.15 mg/1/ht·--only slightly less toxic than the ntand.-ud for an acutely hazarclouB \.J:v;te-- quallf.le:; lt fnr lnclunl.on 11:1 a hazardous \·Wste. It thuH

**··emaln~** listed under §261.13(f) us U246. Re-evaluation of thls llstlnr, Ln liP,ht. of data received during the comment period i ncll.ca te s t hn t t lw compo url<l 1! oe r. not •neet the cr.lteria for llstlng as an acute hazar.-\. Slnce the toxleft.y of 2,'•-D is well

**recot~nlze<l (fot~**  example, it ls a National Interim Primar-y Drinking Water Standard pollutnnt), the comrouncl l.s llst:e<l

**a~•** a haz.1rdonn waste uncler

**~2(l1.3)(** f) as 1121,0. The active pestlclde (C()IIJ(Cl2)0CJ12r.on moiety) is marketed commerclal.ly ln a number of chemical forms.

**1~** clarify that the list

**l.ns~** Ls meant to

**cov(~r** thf'fH' various forms, the llstlng rlescrlptinn has heen clarlflecl hy expllcftly inclucling 2,4-D's suits and esters. Listing rlupltcated 

### PLOl llstlng. LOLo value clted in support of the May 19th promulgation war. lncorreet. Net.r data lnd1cates that the compound .Ls unllkely to J>OfH! a suhstantlal hazard to human health or

**tlu~** environment even f.f the \Wste ls mlsmanagPcl, so the waste

**ther~efore** h;ls heen dc!letf'cl from

**~261..3'3.**1'061

1'07'1 1'0!\1 ,'

**lle:<:H~~•-upene** 

### I I 

### I I 

### I I I I I 

### I I I I I I 

### I I I 

### I I I I 

### I I I I 

### I I 

### I I I 

### I N-tHt rosocl L phenylam l.ne

Oleyl alcohol condt1nsed \1111-h 'l

**mot·~s** of ethylene oxl•le

85 1 HoV•.!<I f t:"OIIl 

### I '}?.fll.l"l(e) t:o 

### I

**~** ? til • 1 ., <

## n I I I I 

### I I I I I I I

**I),.J,~** I c•d 

### I I

**ll<·I··U~d** 

### I I 

# ' I 

### I I I I 

### I nel.eted 

### I 

### I 

### I I 

### I I I 

### I 

### I 'fhe LC'lO

**valut~** c:lt:ed In t.uppor.t: of the Nay 19th pt:omulgnt Lon was

**lncorr.(~c~t** According to new datn, the c:ompounrr docs not meet the c:t·Lterla for liRtlng as an acutely toxic waRte. However, hexachloropropeue's lnhal<ttfo11 (r11t) Lf!')() of ?..1, mg/1/hr
-- only slJghtly less toxic than the ::;tandard for on acutely ha7.<1nlowl \llante
-- qual t fies it for l.nclu'llnn :w a hn7.ardous '"aste. 1t thun remal•HJ lJ steel unrler

**~2()1.11(** f) ns 1121t1. Listing ciupllr.at(!d P07H

**llstln1~·** The 1..0')0 value clted in support of the Hay 19th promulgatIon \lias lncorn·c t ·1 No lnformatlon ls presently avoflahle whf.ch shows that l:he

**'"n~;te posf!~**  a slgnificant thrent: t:o hum,,n hertlth or the environment· even If f 1: w;ts mismanaged and Lt therefore has heen deleted from

**~2lll.J3.** The LO'iO vnlue cltetl in support of the Hay 19th pt:omulgatton \llns Lncor.r-••ct New dutR f.ndf.cate:-; that tlw compound 1<: unlikely to pose a slgnl fle;1nt tht·eal: to human health or the environment ev0n if the \olaste Ls mlsmannged. This conclus Lon is supported hy

**tlu~ tit~~'**  Is 1•)11 of the FoMl & })rug

**Admlnlstt~Htlon** I<) permit the use of this cn•npountl

**a~1** an indirect food atlrlitive.p()<)l)

1'100

I' 1 L 7 

### I Pcntachlot·ophenol 

### I 

# :

**~** I I I 

### I I I 

### I I 

### I

**L,~-Propanedlol** 

### I

Th i.uram **~IOVl~.J** f n>nt

**~261.."\"l(e)** to

**~261** . 1'1( f)

t·love<l f •·om

**~:U,L'l1(e)** t()

**~261.l1(f)** and

**ll~l:lng** elwnged tt>

**~~** Lt r I f y the spec.l fie w:wte helng regulnterl 

### I 

### I I I I I 

### I I 

### I I I After revlewl.ne ln mon.> deUtll the avaf.lahle studies, the Ar,enr.y haG con-· cltulcd that pentachlorophenol .toes not meet the criterla for ;m <\Cutely ha7.at·dous \olaste (sec the

**re~ponse** 1·o conHnPnl !l IH!C t I. on of the Novemlw ,. 19110 \.Jood Preserving Uaste ListIng llac.kgroun1l Document for more Information).

**lloweve1~,** lts toxlclty ls

**W(~ll** r.eeognl7.etl antl the waste wlll rcmaln II f!t0.d

**und'~'­**

**~2()1.** 13( f) as 112112. The l.O'iO value etten ln Rupport of the l•lay ll)th promulgatton was

**f.n(~or.reet.** New data Lndlcates that the compound Is unllkely to pose a sf.gni.fi.cAnt hazarrl to Plther human henlth or the environment

**•'VI~tl** .if the waste Ls lntpropet·l y mnnaged. This decision ls ftu·ther supported hy tlw Foocl &. Drug Adml.nistration's npproval of thl.s compound as a dlreet foor.l ndditl.ve. Aecording to the NlOSII "Registry of Toxic Effects of

**Chcmlc~l** Substances", thiuram ts a synonym for bls(clfmet:hylthlocarbamoyl) di.sulftdc. Comments were received '"hich f.ndicatecl thnt other compounds were also

**knmo~n** as "thturams". We have accordingly changed the listtng "thluram" to clarify that the intended compound is ·•bts(dimethylthlocarbamoyl) di.sulftde". Secondly, the humnn (oral) LOI.o (lntn cited in support of the Hay ll)th promulgation has heen found to he Lncort·ect.

**Accortllnf~** to the lWt-1 clata, h:l s(dimethylthiocarhamoyl) d isul fttle lws(J()l!f) 0\IHl IJ()() ')

Ull)!l

Ill Olt
II I ')I, I 

### I 

### I I 

### I I 

### I 

### I I I 

### I 

### ! I I I 

### I I I I I I 

### I 

### I I I I 

### I I I I 

### I I I 

### I I 

### I I 

### I I Chlorod 1 h romome**thllth~** anti nl.h t:nmod\lo**·~ome** thane

Ch 1**IH~o** f <l nn

nI**m•~** t hyl nIt**l"tHiHIIll.n(~**

? ,'•-01 nItrophenol**~le** t hano 1 

### I 

### I I I 

### I I I 

### I I I I I I I 

### I I I I 

### I I I I I 

### I I 

### I I I I 

### I 

### I I I I I 

### I I 

### I I 

### ne lo•l**,~, n.~** **h~ u~rl**  ( l )**dt~S** I**)~II** ;It I Oil

De 1 e ted Changccl tn (T) clc!s lgnrtt·l.nn

87 a rat (oral) 1.050 of ')60**n11~/k1~** anrl can thus cause inJury of sufflctent severlty to threaten life following Ingestion of a single dose. In**n~dltlon,** lngesth)n of thls compound hefore or after consnmf.nr, <1n ;tl cohollc hevernge (e.p;., heer) lendH t·n 1\**~;ynt~t·glsi:Je** rt!nctfon wldeh fncl·t•ii:Wil tlu• r'lnl< t·o the exposed per.son. [f the dfsennled product was thus mishandled, i.t i.s very possible th11t such expomtt•es could result. ThuH the compound**lw:~ ht~~~n**  llsted as a hazardous w:tste ln l:\:>flL13(f) as 1121tl,. After reevaluatinr, the nvaflahle ''nvlronmental and toxlcolog ten l lnformatlon, the Agency has eoncluded that the informatlon Is not concluslv£ enough to justify retalnlng the llstlng. Pcndlnp; receipt of nddltlnnnl**clntr~,** tlw waste has been removed from**fnr.lu~lon** 11ncler**~Znl.31.** Nlstakenly f.ncl1Hled. r.h1orofonn tloes not hnve a flash polnl: helow ()0°C. Acutely tmdc: and remalns 1 Lsted as POR2. Acutely toxic an(l rerna fns 1 l sted as p()ldl. After cons1rlerf.ng the comments t-eeefved, the Ar,ency has conclticletl thnt it: hns fnsufflclent lnformatfon to just lfy LJ st·fng methanol for**toxl~** I ty. llowevea·, s I**nee~** I t: has •• fl<l s h po l n t of 1 l o C, l t w( ·1 I n•matn 11sted under**~2()L.1'l(f)** as an tr,nltahle waste. ·1116 I



### I I I 11197 

### I I I I I I I 

### I I I I I I I \1

## :wJ. 

### I 

### I I I 

### I I 

### I I I I I I 

### I I I I I I I li2Zl) Ht-thyl lsohutyl ketone

Q11lnoneg

SCJeehArln

T r l c h lot·o f luorome t

**lunH~** C:hnn,:··d to ( r) des I

**:~nn** t I on

Chan,;t••l to p··

**h,~l\:1.11--** qulnont>

Adder! to llstlng



# .. :tnd :;alts.

# ..

...

Oe

**I~~ tc~cl**  After conslrlcrlnr, the comments rt>celvr•ol, the Agency IHlt> conc.lutlccl th;tl It

**hil~l** In· suffl.clent lnfonnatlon l.o .I•H;tlfy listing methyl isobutyl ketone for l:o>< I.e I ty. However, since it lw:; ;1

**fla~;h** polnt: or 22.B°C, it wlll remain llstetl undet· §2oL11(f). As the data c.lte•l ln Hllppot·l of tlw Hay 19th promulgation lndLc
.. ted, the Agency's avaJlnhle toxlcologlcnl data referred to p-benzo-qulnone only. The odginal listlng of "Quinonct>" thus was over-inclusive. \ole are 

### I nccordlngly revising the

**llstl~R** 

### I clescr.lptlon. ApperHilx A to the 

### I Hay 19th llsting

**T\rtc.lq~r.ound** Document 

### I (llealth and Envlronmcntnl

**'~ffeets** 

### I Profiles) summarlzes aclven;e health 

### I nnd

**c~nvlronmental** effects nssocl.ate11 

### I wt th

**p-benzoC]u.tnont~.** 

### I 

### I The May 19th promulgatlon wan

**lnten,J•~cl** 

### I to include hoth the parent eompouncl as 

### I well as its salts, Rincc! normal

**commt~~~-** 1 cf<tl use inclucles (and Ls knm-11\ to 

### I Lnclude) both

**fo1~ms.** Tn Hr,ltt of tltJs 

### I common

**us:1~e.** we •ln not hel

**i.·~ve** thnt 

### I any notl.ce nnd

**comm~nt lssue~;**  are 

### I present. 

### I I The arguments that: saccharin· Is not 

### I carcinogenic were not (teemed persuRs I ve 

### I enough hy the Agency to warrant deletion 

### I from §261. 33 list. That saechartn poses 

### I a significant carcinogenic hazRrd is 

### I amply demonstrated 

### by the \<larnlnr,:l that 

### I are required hy the Fooo E. Drug A<lmln1 lstratlon to appear on any ft>tld to wh1eh 

### I saccharin :ls adlte<l. 

### I I Lfstlng duplicated UL21 Listing.112 .1H I IIJ:et:lwnc I 

### I I 

### I I I I I I I I I I I I 

# c f.f

**~:ling** <lcsc:t·l.pt lonl mo.l if iefl 

### I I 

### I I I I CIWIIJ:I!•l t·n ( r) 

### I

**dcsl;~uatlon** 

### I

89 

### I 

### I I I I 

### I I The original llst

**lnr~** of urethane has

**be~n** changed to reacl "ethyl

**caa~hamate_** (urethan)" to lndlcate more clearly thnt the listlng does not refer to either the polymers commonly known as "poly-· urethanes" or theIr pt·ecur:;on;. Xylene was mistnklngly listed. as toxic lnstead of as Lgnl.tahle. l.JhUe xylene does not appenr to pose a sufflclent toxfclty hazard for listl.ng as a t:ox:1c waste, as was

**lndlcat~fl t~arlfer**  In thls

**nack~round Docum~nt,**  xylene ls an lr,nltahle waute

**tim~** to .Its flnr.h potnt of 27°C.II. In wldlt.l•lll to the nh•>ve



### chaHg•~s **m.tdo~** In t'••sponst! to



### o'nlntot•·nl~l, thP foll<lwlng changes, desca·lhf!d



### ~;umm:~t·lly h•d•lW,
have

**ht~t~ll** tnadt! ilH a

**t·e~;ult** of tlw Agt!ncy':;

**rl!vl.<!~J** •>I· tit•! lnt•!t'lm fl.nal

**.-.~gular:Lons.** EI'A I!a za a·dotw Hast•! Nwnher· C:omrouncl N;une Acll•lll Tak(!ll 

# -·--·- -------·-- -·-r·--------------·---------------------- ·-------- -·-r ----·- f'()l)j,

PC)]O

PO')') POh)

POHO 

### I A.lundnum phonphLde 

### I I 

### I I 

### I I 

### I I I 

### I CyanLde salt

**mlxtua~e~** not ol:lwn.ll.•w 

### I Bpeelfled 

### I I 

### I I I I I 

### I I Fert· [c eyanl•'•! 

### I 

### I t-fC! re u r y f u lm I n 11 t P 

### I I 

### I I I I NI r:

**r•>J.~(!Il** t.d· rl)x I ,-t,-. 

### I I .\dd··ol (T) 

### I

**dc~;l;~nat:l•ln** 

### I 

### I I 

### I I I I 

### I I Nod I I' I

**·~d** I l s t: 1.

**111~** 

### I

**•l«·~:··a·ipt·l,>n** 

### I 

### I

Atldc!d (R) dl! s Ig n a t i n n Reason 

# -.-·r --------- 1 As lnclicnted e.:u·ller ln t:ld .•;

**l~ack** 1 

### I 

### I I I I I 

### I 

### I **~~round** Document, ln ad(lltion to

**poolnf~** n

**haz<~ro** due to Its a·eactlvlty t.ownr(lfl

**wnt~r,** Hlwnlnum

**pho~•phldl•** l.s ncutely toxic wlth n hum:111 (orHl) (oral) LD50 of 20 mr,/kg(7.). Thus t·hc llstlnr, h<ls

**h•~t'll chAnp,t~ct**  t:o atltl r·he

**toxi·~ (le:~**  lr,nat l•)ll (T) '""I

**c~h** had

**hc•~n** f.nndvertentl.y

**oml.tt~d.** I The term cyanides ln the Hay l()th 

# ' I I 

### I I I I I I pa·omulnation wa!; lnt:en•le(l to cover l.norgantc cynntde snl ts wh Idt hacl not: heen slnglerl ant fot· speclfle

**ll~tfng** and mlxtures of eynnide salts.

**Sltw.~** thJ.s lntent

**appe:~red** to have

**ht!•~n** mlslllltlerstood by several of the

**~~o•nmcnl:t~a·s,** the llstlng has heen

**chang~tl** to eliminate such mJ.suntle r:; tand lng:>. 

### I Listing duplicated POJO llstlnR. 

### I I 

### I I I I I The (R) rleslp,natlon \-JaS omltte•l lrHHI--

vertantly.

**Hhilt~** mt!rcury fullmlnnt:•• ls toxic it ls also acutely haz:1rclous because of mercua·y
**ful.mlnntt~'s explo~llvt>**  propertles. 

### I l.fstlng f)upllcntecl P()7R

**llstlnJ~·** 

### IP091 t>O•> I

Pll2

lJ()I)l

lJOI?

UO It)
U01J

tHl 'ilt I Pht!nyl d lch.l.oro<Jrs ine I 

### I 

### I I 

### I I 

### I I I 

### I I I 

### I I I I I 

### I I I I I 

### I I I I 

### I 

### I I I I 

### I l'htHiplaot·othJc){e acld, 0,0-.llnwthyl ester;-o-c-s.,ter with N,N-clf.methyl benzemr-snTfonamlde

Tctranftromethane

Aet!talclehydt!

,\ef!tyl chlot·tde

**Anlltnt~**

Benzene Crtd)()nyl fluorl.de Chnng•!•l l:ol (R)

**desl:~natlon.**



### I Clwng•!·l to (f) 

### I tl(•:;

**I:~"''** t- I on 

### I I 

### I I 

### I Adcletl ( R) 

### I deslgnatlnn 

### I 

### I I 

### I

**Atlrlc~d** ( T) 

### I (les Ignat Inn 

### I I 

### I Addeel (I) 

### I

**c1esl~~natlon** 

### I I ,\tlcled (R) 

### I dc s I

**~~** 11 H t I. 01\ 

### I I I 

### I I 

### ne lt>t·e·l 

### I I

91 I Listing dup1Lcaterl

**P03~** 1Lstlng. I 

### I The Agency had mlstakenly llsted thls 

### I compound. It clocs tHlt exist. The 

### I correct compound is "Phosphorothiolc

**acl~,** 

### I 0,0-dtmethyl 0-(p-((dimethylarnf.no)-sul

### 1 fonyl)phenyl] ester." 

### I I The (R)

**deslgn<~tion** was ln£ulvertantly 

### I omitted. lolh:Ue tetranttr·omethane ls 

### I toxi.c (as was polnterl out e:trll.er, 

### I it 

### is acutely hazardous because 

### of 

### I tetrunl.tromethnne' s explosive prope1·ttes. 

### I I This compound does not pose a

**sufflcl~nt** 

### I hazard for llstlng hec:luse of toxicity. 

### I llowevet·,

**;tcP.t;'lldehytlc~'s** fla:;h point of 

### I -17 .A"C classes It fiS a hnzanlous \-la:;tt• 

### I hy reason of lgnltahllity. 

### I I The reactivity designation was mistakenly 

### I ontltted from the Ustlng, Rlthough the 

### I May l<lth promulgnti<)n c.lte<l renctl.vtty 

### I as a reason for listing. 

### I 

### I In addition to anfllne's lRnltahle 

### I propet·tles, lt f.s nlso tox-le wf.th an 

### I oral (rat) LD50 of 440 mg/kg (3). 

### I I As well as he lng toxic, thls comJ)OUIHI 

### I Is highly flammable (l0-l2°C). (l). 

### I I In addi.tion to carbonyl flourlde's 

### I toxic properties, ;'IS was lndleatecl 

### I earlier in this 1\nckground Document:, 

### I it also poses a ha7.i-tr•i rlue to t ts 

### I reactivity. 

### I I Lfst lng dupllca ted IIO'i2 11 stl ng, wid

**t~h** 

### I now reads

**ere~~~ ~nd**  creHyllc ncld. 

### IIJ() ') ')

I Hl/1,

II OH'i \II I 7

til')?.
Ill')'l
Ul'l(,

lllh7.

\I \ I '• 

### I

**C.11mo.~ne** 

### I 

### I I I I

**l,t,-J)Lq(j1.or.0\2-but4~tH!** 

### I I I 

### I 

### I 1,?.:) ,lt-Diepoxyhutane 

### I

I I Ethyl ether

Isohutyl

**alo~ohol**

f-Ie l:hae t•ylon [ t r Lle
Mer:hnnethlol 

### I

**~let** hy 1 ehloeocarhona te 

### I 

### I I I I I I l·lctltyl mel:haerylal:e 

### I I I I I I \ N-tl I r t"oH;t')o\ l-n-pt·opy·l.\ln I"" 

### I

**C.haiiJ\•~cl** l.o (I) 

### I

**de~;** I

**;~** 11 a t· I on 

### I 

### I I I A!ldo.•<l ( I) 

### I

**dt~:;l;•.n** .. l:lnn 

### I I I 

### I Ll st. lng correct<!d 

### I I Cha

**llJ~·~d** to ( T) 

### I designation 

### I I 

### I 

### I Added ( [) 

### I de:; I gnat I on 

### I I 

### I I 

### I I Addt!tl ( () 

### I

**t1e:~** l.gna 1: I on 

### I !Hideol ( r)

Ad cl(!d ( [ )

**olt~s** I gnat Inn

**Adtt,~.t** ( r)

**dP:tl.t~""** I Inn

J)c 1 •! l:eol This cotnpountl do••n not po:;p ,, :;11fflclo•nt hazat·d for listing lwcaltS•! of toxicity.

**IIO\o~ever,** cumenc po:Jt!S an Ign II :dd 11 ty hnz a

**1~**d due to 1t s f l a f;h po In I of 1, 1, o C • A review of the 11

**tr~ratut·c lr~tllcal**  p,J that as well <1:; helng toxic, r.hlr. cnmpounct is highly flammable (flash polnl of 27°C). 

### c1nr l f l c 11 t i () n , pI" e 

### r I K 0111 I 1: 1:

**~~**cl hy In I s r ;

# "(I

. - This compound oioes not pone n sufflcl•·nl hazard fot· Ustlng hec:wse of toxicity. However, ethyl ethers fln:;h polnt. of -/15°C classlfled Lt As nn

**lgnltaldt~** wa!;l(' The ignitabllity tlcs(gnatlon was ina(lvertently omi.ttetl as tlw F005 ll.st I 11)', B<tckground Document lndicnted, isobutyl alcohol has a flanh polnt of 2H°C, well withln the range of an Ignitable \-l<tste ((ft0°C). 

### I An ,.,ell as

**heln~** toxlc, this cc)mpoun<l Is 

### I hlghly flammahle (12°C). 

### I 

### I I 

### I I I 

### I 

### I I I 

### I I I I 

### I I 

# I As well as he lnr. toxic, thIs compountl Is

hlghly flammable (-lH°C). This destgnation was mlstnkenly omlttetl although the data cltecl In support of tl Nay ll)th

**pl~omulp,atl.nn** lntllcntecl thnt the waste presents a hazarcl olue to ignltability. The

**,.,astl~** Ln fact hnn a flash point of li°C. Th:l.s destgnati.on ,.,a·r. mistakenly

**omlttf~cl** · from the reguL:ttlon, although the datn cited in support of the Hay lf)th promulgation indlcnterl that the compound ls

**if~nltahle.** The waste, ln

**f:~ct,** possesses a flash polnt of l0°C. Listlng oupllc:RI:c!<l Ulll ltstlnp,.

### ul '1!, 

### I u-· t•t·u py Lun f. ne 1\llclt!tl (T) 

### I The toxtc des l.gnat f.on was omitted mls- , 

### I 

### C ""\ tleH !gnat i•>n 

### I takenly. Further discussion Js conta1.nec1 

### I I .-Ln the next part of thls dlscnsslon. 

### I 

### I U22., 

### I Toluene ell

**Lsocyanat1~** Arl<ll'd (H) 

### I As well as helog toxic, thJs compound 

### I des I

**;~na** r: I•>II 

### I .is hi.ghly reactive. See di.scusslon f.n 

### I I 2. 

## c. of thLs section. 

### I I II

# ?.'•'• I 'f'tllt;l

**piH~ IH~**  Mov•.•tl 

### r ,.,,"' 

### I Materlal has an ora 1. ( ra 1:) Ln'>O of 

# '•O I §1h I • 'l"J ( I ) to 

### I mg/Kg; thus meetIng the st<ultla rds for 

### I

**~2(ll.** l'l( c) 

### I an acutely hazardous waste. lts new haz.a rrfous \..r<tste numher is Pl21.

93

. IC.**St~v·~•·al** r.omments wero! ro!ceived ,,rhJch**aq~ut!d agafnt~t** **tl11~** listing of ;t speclfic compound hut '"ere Judged hy thP**•\I~'''"'Y** In**h,~ nc'IIJh!l·~;uaslve.**  Tht!He commt!lll:; arc!**sumuHtrl;~.etl** helm" .1long with the reason for out· dectslon to retain the•

t" ho•lltlo• it I El'!\ lin z :I ,.tlo 11**~• \Ja:;to~**  1.-.

## th.~ 5U>I.,

## rrlt:~.

Numht! r· r.ompound Name Jten:;o)ll



## --- ------------·- ·r---------------- ------------------ ·· --

# ----·-r··----- ····- -------··· ··- ····----- 1'0')(1 F I un**1~** l.ne

Plt)7 Stro)ntlum sulfitic

ll007**Al~** •·ylamtde

UO'lfl !t-:lroanoplwnyl phenyl ether 

### I Thl:;**rl~<~lllk:tl** wan llst:eclns intenderl. The ha;o:;:trdour. matPt·fal Is 

### I flout'ltH', the cll.atomle molecule F2, not the polynlt<'lo!;ll· a•·,,matlc· 

### I "flllltl"•·•••'' dlseu:wc!cl In the comment. Slnct! flou•·fnt!**hn~** a 

### I repllt'lc!ol lnhal<HII)h \!twnan) TCLo of .0001") mg/1/ln·, wltleh falls 

### I wfthl•• the :;t·andarol:; fn•· <Ill acutely hazar(lous Haste, lt wlll 

### I rt•ut:tl•t II sl:c-•1 llrtoiPI' ll')(d .11(e)**~** 

### I I**\~hllc•** t·ltp •Hal (r;tt·) J.!)')f) dnt:a cltert Ln support of the Hay ll)th 

### I p•·o·••·d:•.•lllnn wa:;**lncn•·•·•·<~t.** the correct oral (humfln) LOJ.o dat:l 

### I ,,,,,,.,, H,J:; •:lt••cl hy tlw •:onunenter.
-- ')0 mg/Kr, (Letter from 

### I**Chemlo~il·l** P•·o,Jucts Coqt., dated August lR. l<HlO) --confirms the 

### I**AgPnt~Y'** s o>rlglnal c1asslflcation of this waste ns acutely 

### I haZi11·tlo11s. 

### I 

### I The**Ag(~ney** admits thnt the Health and**l~nvtronmental** Effeets 

### I pt·oflle for aer.ylamlole was unavailah1e for comment: \11hcn the 

### I**n~gulatlons** ,..**c.-,~** promulgate•).**Howevet~.** the Agency st:J·ongly 

### I**htdlt~VL!!l** that**~wfflelent** l.n(ormatlon on the**toxl<~lty/l~arelnog•!ll** .. 

### I**Le~ty** of this compound '"as presented .ln the listlng nackgrouncJ 

### I noeunwnl: fnt·**want•~** KOI./1 to support the cnntlnuecl fnclunll)n of 

### I ncrylamf<le under §Ull.11. 

### I I Tlw commentet· claims thnt this compound Is not in commet·elal usl'. 

### I Pencllng verlfl.cat·Jon of the claim the compound \-llll remain ll!';l"t>ol 

### I under**~7.()l.11.** 

### I

94fl01/

111)75

II ORO I r:r.

**lnrohen:.-.:•:n.~** 

### I 

### I 

### I 

# C. .:J I I I 

### I I I I 

### I I 

### I

**Diehlorodl.fluoroOiethHnt~** 

### I 

### I I I 

### I I I 

### I I I I) I

**·~hI** ()I"OillL'I:hiltH! 

### I 

### I I I I I 

### I I 

### I I I I 

### I

95 /\11 ,,..,: rll

**~l<"tHUll'cl** In

**t·Ju~ ll~nl**  th nncl

**l~t1V** l.ronnu•nt·nl 10:1' l'er.t·.R Prof l '.., puhll shed tn supput·t of the Hay Plth promu1gatl.on v!' the Part 261 ,·,:gulat"J.c)llS indlcatecl, chlorohenzene J.s absorbed from tlw
_ gnBI:I"olnt:o::;tlnnl t:t·nct: 11nd Ls in pnrt mctilholtzecl to chlorlnat.Ptl phen•lls. A"ll:hnuglt lt:s acute.toxiclty ls not very hlp,h,

**m:~ny** cha·onk

**efl\~•~ti;** IHJVe heen noted. Cont.inue(t administratlon at l.ow

**.lose":~;** lnhlhl t:s t·ecl blood cell format Lon, induces eosinophll!;l, :111<1

**•'ht"•Hn•l~;l)me** changes in the t·at.

**Decrea~wd**

**spet·m;~!,1gen.~r;lc; <~nd**  •llher gonadal

**efft~cts** \Jere nlso notec1 t.n mil(,. dogs .111•1 In female rats exposed to low doses. Chloro**heni'.•~•w** h;t:; a I so been found to be mutnr,cnic in certnl.n ohort tenn

**hl•la~~~;nys.**

**Conllth'nl•~•·** c1 L•l not

**pt·I~:H~nt:** any rlata to argue .agaf_nst the conr:ln**tu~.J ll~;tlng**  of dldtln•··Hl.i.fluoromethane and the wnste tlws

**to~lll** rt•m.iln Jl,;l'l••l. II :;hotdol he note•l that the

**i\J~C!IH~y'H OVL'l"l·lllfnJ~**  cotw•·•·•• \ollth

**rltl~** ('tlmpnund, as with all.

**chlol·inatc~ll** fluor.o-

**•~;u·hnll~;,** r(•lar·,,:; l<l lho• fact thttt chlorlnntecl fluorocarhons may

**ln.Jir•~·~tly eH•t~;•'**  <;l<ln cancer by

**deplt~t·fon** of the sl:t"iltoph••ri.· o;-:otw.

**l~o•·** fut·r:her lnformatlon, the t·eader ls t·eferred to rho•

**l.lstlnJ~ llaekf~t·owlll**  Document "Spent Jlalor,enilte•l an•l Non**llal•)l:vllal··~d** :>olvPnU; :tn•l Sti.ll. Tlottoms/Sl.udges From The

**Rec~overy** 

### or Tho:;.: So'IV!'III"!l

... Thl'

**/\go~n~y** rll

**saJ~r·~·~s** wi t:h the comment thHt cllchloromer·hnne ofopn 11o1

**po:;~~** a hazat·•J if mismanaged. Although the NCr !>potworl•d hloansay stud I e:; have not been completed, RPA han found ::;ugg<!Htlve evidence of Lts cnrclnor,enlclty.

**Thea~efore,** whllc till' llg•!tH:y has ft!Vlserl the llenlth ancl Envlt•otHncntal

**l~ffects** Peol'lle clted l.n t:hf.s Background Document to ln<llcnte that

**df.ehl.oa~ometh;.me** ls only a suspect carclnor,en, i.t c<tnnot ignore

**thl~** prdl.•nlnary flnc1lng particularly ln light of the large qttanr·lty of this mat ..

**~•·lal.** In ttse ttn<l the likelihood of Lts lu'ln1: cll::;c:at·detl.

**l;o•~ fun.ht~•·**  lnformatlon the

**•~e;Hler** Is t:l•f••rn•ol tn '"'' Lf Sl: lng naekgt·ountl Document "Spent llalogenatetl anrl Non-llttlo**genat:·~d** Solvents and the Still I\ottotns/Sluclges From the Heeovea·y of thene So-lvents."Ulll2 a•11l 111117

lll'J.l



## uuv. I Olmethyl phthalate and 

### I Dl-n-octyl phthal<lte 

### I 

### I I 

## C """\ I I I I 1q uorot r !chloromethane 

### I 

### I I 

### I I fsnlwtyl Alcohol 

### I I I 

### I I I I 

### I I

Pcntachlorocthanc 

### I l.Jid It! t·lw:;e rompounds a1·e not acutely toxic to m:lll, they hnve 

### I hP<''' found tn he tea·atogenic in rats·, causing fetal

**L"l!~:orht** ton, 

### I gro:;:; ahnonnallt:les, and dccrenscd fet;ll weight. Dimethyl 

### I

**phthalC\U~** (::;

**m••t:l!~enlc** ln ml.croblal assay systems. ln ncldltlon, 

### I a

**1"<!<~•!111:** a·•!pol"l. (Will:<!r Quollty Crlterla Document: l'hthillat:e 

### I Esl"t!I"H,

**NTr~;** PI\ 1-Jo. fll-117780) lndicnted that ncua.·otnxlc

**effect~;** 

### I hav•· h.•r!ll nh:>c·•·vecl In workers exposed to mf.xt:ure:; of phthal:lf<•n. 

### I I Fluorotrlehlor<>nll.!lhane has been listed because of the dC\nger lt 

### I

**po:~··:;** to tlu! e:11·t:h'n o;r.one layer an<l thus l.ts t·emnval from t·he 

### I ll:;l 11f l<lXIc· c!u!mkals under

**~307** of the Clelln Uate1· Act: fs 

### I not gl!l"lllilllt! to the reason it was llsterl as a hnza•·,Jous

**\.Uastt~.** 

### I I The ll(';llt.ll 1111d Envl.-onuwntal Rffects ProfiJe (Appcntllx A of 

### I lh•• if;ay l')th l.lstlnJ; IL11·kground

**l)ocunu~nt)** cllscus:;c:; aaHI 

### I s II p I'll ,. I <; 1: "I. I I s I I IIl'. " r ,. h I. s wa s t e (1 s t 0 ){ l e • t-1o

**.-.~ ~~pet:**  l f f c :t I I y • 

### I or:a I ·''1 "" n I s r· r a r· lon In 1·a t s o f r e 1a t t. vel y h l g h cor;-·en 1: r a t Ions 

### I of lhl:; !mh:;LIIwc•

**r•"•ultl~rt** l.n hlocheml.eal .1nd hl.stologlc

**live~•·** 

### I eh;•n·:•··:.

**l.lvc~•· .·.arc~itlnmas**  anrl sarconwr. aH well

**et~l** myclolrl 

### I

**leuk.~ml.\** have also

**he.~n** produced in thls upecles. Additionally, 

### I r·ld:; compo•m•l should ;a"J.c:;o have been liste•l as

**ip,nltnhlt~** 1n 

### I

**~Uli** •. H(I'),

**sine:•~** t:lw Hay 19, l9BO

**llstl.n1~** of \.,r(H'ltt! F005

**c1(~:1rly** 

### I

**ln•ll•·;at•·~;** that th•!

**t~ompoun<l** Ls lgnf.tahle. The

**w;wtt~,** l.n faet, 

### I J)(W:>t!:Hw:> a flash polnt

**~B°C.** Isobutyl nlcohol also \-lll.l he 

### I ntlde.t tn Appendix Vlri of Part 261, from whlch i.t '"'as omltte•l 

### I l.na•lvet·tantly. 

### I I Conta·a•·y to cl.alms of the conunenter, a llealth etn1l Envlronme 11 ta1 

### I

**l~ffeets** Profile for tht.s compound was puhllshed (Appendix A of 

### I

**~~21lL.11** 1"\lltl :U)l.12 Listing nackground Documents, PP· '•35-t,')) 

### I Aer.orrllng to th Ls

**p1~of** Lle, release of pe.ltachloroethane to the 

### I envl.ronnwnt pone:; a potential hazard to aquatic. ecosystems. 

### I

**Foa~ eX;llllJllc~,**  accot·ding to the recent Water Quality Criterla 

### I Ooeument (U.S.

**l~I'A,** Ambient

**l~ater** Quality Crite1·ia:

**C:hlodnat.~cl** 

### I gthancs.

**F.I~A t,t,0/5-~0-029.**  October 19110.), the maximum

**cone~n** 1 tn1t l.on that can he present in surface waters \-lithout danger 

### I to the

**t~c:osy!item** Is 11\

- fi7 ug/1. Pentachloroethane also ls 

### I

**hln;u:l~wnu1atlvc,** n further reason for Lt:s l:nnt:l.nuPtl llstlnp,. 

### IlllHU

llllJ!t

li20l

Ul U I Ph C.!Jlt) 1. I 

### I 

### I 

### I 

### I 

### I I I I 

### I I I n-Pt·opyLunl.rw 

### I I 

### I 

### I I 

### I I 

### I I I Te

**tl~ach** I or•>lwnzene 

### I I 

### I I I 

### I I I I 2,

**'},1,,6-T,~trachlurtJplwnol** 

### I I 

### I 

### I I I I

97 ·rlat! Agcnt:y

**sLt~oug,ly ~i.sagrees**  wit:.)\ t:l1u co•nanent t:.\u.\t:.

**•nlt.l\\\Ut,-1\i•~.-**

**1111~111.** of waste phenol does not pose a hctzanl to human hcal.t:h. Hh II.<! r:ht!

**c•tn:l.no~_;cnlc** Lty of phenol htt:> not been f lnnly est;,ah11 :ohetl, hot II I ivl!t" ;uhl kldney damage to human:> wlll. result from ,·hi·,,.lJ•· I!XJIII:;ur·.! l:tl phenol with death a potentl.al consequence. In ;tddl '-''"'•

**tit,~** acutt! toxicity of phenol results In centrHl 11

**·r·vou~; !l.Y~•I:•~m**  **clt~pt~esslon** with symptoms severe enough to caru I' 't!lltl I ;I I•• •: i ,. i r.y r a tlng of 'lllgh' ln Sn:< ( 1). This stancl;l nl

**,.,.,,.,.,_.riC•~ l•loli.·.tl•~~;**  that ''death or penn;lrwnt fnjua:y nwy

**oc1~111'** dtw lo

**•:xpo:;.rr·~** at nor.mal use ••• ". Therefore, the Agency will conl:inw· to include phenol

**uncl·~r** §26l.JJ(f). hlldiP lhe eomnwnter believes that compounds, such a:> thfs orw, llilvini_: n•l oral. (t-al:) LO'lO of 570 mg/kg are not to>elc,

**tlu~** Agenc di:o.•:;t"<!es.

**Oll~t••· ~a:uulard**  sources support the Agency's vlt''"P'>lnt.. For· example, "Clinical Toxicology of Gomrner.el<ll Prt><l uc I:-:", co•w idt!t'!> n>mpounds which have an oral LD50( as d•·•··nnJIIc!<l u:.;l11g .-:tl:->) ln the

**re~ngc** of 500 mg/l<g to 'iOOO mg/kg I•• he t«nde l:o ••wdt?t·ately toxic; howevet·, lt shoul.d he notetl lhal. lhl:; t:omptHultl is at the lower end of the

**ra11gt~** a11cl would l•'ll•l to he

**cousldet··~d** toxic rather than moderatl!ly toxic. Th" llt..•:d.th and

**Envlt~omnental** Effects l'roflle clt:•!tl ln the Nay !9th Backgt·mmd l)ncwnent discus!;cs and suppot·ts t:he listing of al.l \Ja::l:e ("OIIlllll!l't:l.al chlorlnCll:t!tl

**hen;~t'lll!ll.** Among tlw HJh•t•lr., r·oxlc l!l'l.'ects of tetrachlorobenzene ;u·e lts aquHtl.c

**tox:lt~lty** (llt.'l ug/1) <ttltl

**hloc:on,~entr.ation** factot· (lROOX). Since tht! eonunenU!t· tlld lltlt present any specific. cv.idencc oc reasons fl)r· the Age11cy not to llst tetrachlorobenzcnc as ''

**h<~Z<lrdous** \.Uiste, lt wlll. rr!mal.n

**llst:<~d** under §26L33(f).

**/\~;** !iLtl•.•d ln the Health Effects Proflle [or this cnmJHHIIHI,

**2,'},t,,b--T~u-achlorophcnol** is fetotoxie ln rats, anti tnhlhil:!.; but It c;11·hohyd l".t tt! lfl(! tabol Lsm and the llver oxidll!lt! !>ystem. H ;tis•, I!.;

**hl,1ac.~umulat1ve** (bionecumulatlon factot: llOO). EPA h.t:;

**•!~>t:thti~;hetl** l ug/1 as the

**nmblt~r\t** water qualit-y

**l~r** lterion ha!;cd 011 organoleptic effects; 440 ug/ J

**1"a~;** enLthlislwtl ft)l" t:lw protcctf.on of aquatk llfe.

### trnn

rr2:n

112 211

U2 ·12

iltl<l

**~~~-n** 

### I Toluene 

### I I I I I I I I

**Tnluc~ne tlllsot~yanntn**  

### I 

### I I I I I I I I I 

### I I I ,l,l-Trlchloroeth<HW 

### I I I 

### I I I I I I I I I ,! , ''• ')-'J't·l eh

**lorophtmoxy;H~r!l:** Ic ;w 1.( n n.J 2 , /1 , 'l-Tr Lc h l o •·o phenoKY fH·op I on I,. ;w Irl **Hllil·~ rolut~n~**  **hn~:** a rt!lntlvely low ncutc! toxlt:fty (oral

**(r~tr)** I.D'iO of 'il)r)O mg/r<g), rts tlescrthcd in lht! cIted Ileal rh and EnvlrotJIIH'tlf·,,l

**l~fh!cl~:** Profile, low level clll·onlc cxpn!;urc Lo to I tt<'llt! lril:; c·•llts••·l

**·~hr·omosomc** damnge 1n hum;tns and ha!> lr!d to rlw

**d~·v;dop•th:nt·** •>f neuro-muscular dlson.Jers. Toluc•ne Iran also h•.!t!ll ,.,.l'or·t·:d ro cause reproductive pr·ohlcms r:n female• wor·l<

**~.-s** dttrlng oc•:11p11tlonal exposure. ThP Agt!llc:y

**hc•llc=v··~:** that toluene dll.socyanatC!(Tilf) r:l\oulrl eollt.lcltlt.' t•• h•.: llstetl as a hnzardous wautc when dlscanled. Til 

### r

**.~xpc>:::~tr··= pr·oduc~cs**  respiratory sens l t f za t ton, nncl deer•.:;t::•=rl l11ng funet l.on.

**~xposure** to high concentt·at lont; cnn

**•··~sttl** t ln pulmonary edema Ano cieath. Adrlltionnlly, the ren•·tlc)n of

**frc•~ ln•l•:vnn;lt•~**  groups \-lith water can occur very r·apldl.y, IH

**·~xolhc!nulc,** nn•l can I"C!llllt l.n n pou!llhly exp1oslv··

**r•dt~n:H!** c)f l:nxl•: and potentially carclnogenle aromatic

**ch.•ml.·:rl~;.** llam:tJ'.•' Incidents of thJs

**typl~** ilctuAlly have oc•··..·····d In wa:;t••

**ut:magr~ment** pructlce (see llstlng 1\ackp;t·oun•l Doe'"''''"'. 1)11

**Tnluent~** llllsocyanate Productl.on). No ti••L:t \4:t:; pr•!scnt••tl '>Y

**tht~** commcnter to _juntl.fy

**tht~** content·lnn tl!itl:

**•o~a::r:c•** 1,1.,1-t:rirhl•)roethanc does nor: posen hl'alth haz;11·d anti shoul•l not he llsterl. As the hloassays descrthed in tht' H::Jy L()th Appendix A Health and Environmental Effects Profile Ln<llcnt. 

### I

**lnc:•··~••:••~•l** tumoa· JH"•Hiuctlon was noted Ln animals

**ta·eatc~cl** 1-1lt:h 

### I I, l,

**t-Lt·ft-hl•ll~oetltit•w.** ln mldltton, l11 vlta·o tt·anHformatlon of 

### I rat

**·~mhryo** cells ancl subsequent

**flrbosar"Ct~**product: Lon hy

**the:::•~** 

### I

**ct~lls'** "1hen l.njecte<l

**~vivo,** also indlcates that 1,1,1.-trlchlor·o 

### I ethane h:w c:an:lnogcnlc potcntlal. lt shoulci nlso he notec1 r·hat· 

### I the

**Ag.~n,~y** f"t!t-:l!ntly clctcrmlncd that 1,1,1-Trtchl.oroeth<tne shnul,l 

### I conl.ltlltt' to

**he~ ll~;l:c~tl**  <HI a toxle pollutant

**~tntler ~107(n)**  of 

### I

**l:h•~ Cl·~an**  \J;Het· Art:. 

### I 

### I r)ru!

**c:o•nmc!l\l:t~l- quL~:;t**  lonecl the presence of these corw t: I

**tm~nts** 

### I on l:ht•



### ~:>(!1 •. 1) li.HI: \llhcn the



### t<~astc const:l.tuentH i\1"1.! nmonr, l:hn 

### I

**Jlill"illllt'l~t~t-:; lllt'il!Hil"t~ll**  hy the character 1st

**1.~** 

# of F.lCI:raet: Ion Pro-· 

### I r:Pclu•·
.. T•H:Ic·lt·y (EP). \.Je hcllevc thf! conr.t>rn Is laa·g·•ly 

### I

**:tt~ildPml ·~**  **~;** IIH'•' ''' :·wn r·ll•!cl conuncrc i.Hl cheml c:tl pt·ocltwr· s t·o 11 n 1'11·- 

### 1

**ln1~** nf thl!HI! pestlel.rles



### t<~ill undouht:edly cnntaln c•utc 1•nt:ratfons 

### I nwny or·tlt!l·s t>f inagnltudt! nhnve the gr• levels.to**~~~-;;h~-;;-d·.;;j_ng** «:he c;:omputat::l<;>n of :tnha1at1.on t:oxJ.cJ.ty val-ues- We acknowl-edge that for a numbeiC' of" the compounds l1.sr:ecf for acur:e 1.nhal.ar::1on to:xic.ity, the convers.ions were erroneous so that: the va1ues cited in support of the May 19th promulgation were incorrect. After recalculntLnp, the toxicity values, it was found that the following compounds still meet the criteria for listing as an acutely hazardous waste (inhalation (rat) LC"lO <2 mg/1/hr or inhalC\t!-on**(human?;LC~** 5:..2 mg/1]. The raw data obtained form the literature, the value cited in support of the M.'ly 19t
..**promulga~6n** and the recalculated correct values Are presented below. The formulas used in converting Inhalation toKicity values are: ppm 

## = mg/m3 x (22.4/MW) MW 

## = Molecular weight mg/1 = (mg/m3)/1000 mg/1 = (MW)(ppm)/22.4)(1000) (mg/1/minute)/60 

## = mg/1/hour (mg/1/hour[s]x(hour[s] mg/1/hour
EPA Hazardous Molecular Cited Value Correct Value Published Value Waste Number Compound Name Weight (mg/1/hr) (mg/1/hr) 

### fSource of**Dat~---** 

## I 

# r-· POOS 

# ,. Allyl alcohol 58 

### I 6.8 

### I 0.06 

### I TCLo(hum) 25ppm [N) 

## I I I P016 Bis(chloromethyl) 115 

### I 

### o. lt9 

### I 0.25 

### I LCSO(rat) 7ppm/7hr (S) ether 

### I I I 

## I 

# -------, ------------------- P017 Bromoacetone 137 

### I 0.95 

### I 0.53 TCLo(hum) 3.2mg/ 1 

### IlOmn ( D

## L 

# ---*r---·**~---------T** P028 alpha-Chlorotoluene 127 

### I 0.003 

### I 1.70 

## I LCSO(rat) 150ppm/2hr P031 Cyanogen 52 0.16



## ------- I 0.81 

### -------· LC50(rat) 350ppm/hr
*/The commenter, in urging deletion of alpha-chlorotoluene, referred to the Agency's statement in 45 Fed. Reg.

- 47833 (J 1tly 16, 1980) that chlorotoluene did not warrant Inclusion in Appendix VIII to Part 261. Chlorotoluene and alpha-chlorotoluene are different compounds, of course. Alpha-chlorotoluene, also known as benzyl chloride, not only is ac1ttely toxic, but has shown evidence of carcinogenicity (see Listing Background Document on Benzyl Chloride production). 

### 99 (S]

### ~L-I'OJJ 

### I l)'aHU('l.!ll chlurldc 

### I


# ---- -· --- -·- -·- ·r- -· ---l.

.. ----------·--··- -- ·-- - - - L'UJI> 

### I

## l~IC . -:-----

## -~t:- 

# ---- -·-- ·- ---··r-----·----------·-----·-- ---·······- - ---·--r---- · ·--- · I**().~IY** 

### I 0.01 ITCI.u(llltlll)**l01ug/u~ 3**  __**U~J** 

### __ _

.**-~--.** ... ----- 

### - . -·--

# -, 

# --,-
··-- ------- -- .. 

### - -



### I I.W) 

### I 0.03 ILC50(t·at) lll5ppm/ht- [SJ 

### -1 . -**----~** 

### I ------ ------- ----- 6L**!'_0_~_ !**  ______ _1 1 _**-~-~_9_a_!~L_c** ___**~~l_<!.L_n~(!_tJ~r~ c:;~-c~~-**  I___ 111
__

. - 

# ., . 

### -- 

### I 0.20 I 0.00/t ITCLo(hum) 2ppm [NJ 

### I

.**----~--------1----------------** 

### ---------- L'Ouh 

### I**~lethomyl** 

### I 162 

# ·· --- ----- r·---·-----·-----··--- ·----- ···--·-···- --- ·- - r-------- - I 0. 77 

### I 0.56 

### I**LC~U(rat)** 77ppm.LJ4J 

# ·r- ·- - ·- ·- -· ---T-- -----,------------ ·- ------ -- I


# -- -

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### I Hcthvl hvdrazinc 

# ·---·- ----- - -- - ··r·-----.:.1
______ .:..>_________ - ·----- - - - L'07J 

### I Nlckcl carbonyl ------·-···· 

### ----- 

## ---,--------··· -·----------··-·- I 2.Y6 

### I 0.61 ILCSO(t·at) 7ltppm/ltln:- 

### l!:J 

## I ----------------1 -,-------- ·---·------ --



# ·-___+-·--**--~~~--** 

# __

# + _____**l~:..?l_**_______

### _I 0. 12

### -~CSO( ra l) 2lt0mg/m3/30m in
__

### L!~ 1 L'hosphiuc 

# ·- ------ .-- . - ·- ·r----···----- ------·---·---- --- __ . ·}- _. ___]_'!....
_ -: _____**~·-4_'•-.** 

### ___ . _

# +- 0.07**~~CSO(_rat) _!.!.EP~-~~~~r_LS_l** ______ PO!Jb**~~l_l_~** ____ . _**--~-~l~c_t:_~a-~t:_l~y_:!:__~t:_·~~----** ____ . ____ 

# ··l--
__**}_Z_'~--** 

### : __ 1_**._Jt~** _. __**+-----0.09_~0._9(rat)** 6ppm**~j_**________ _ l'll.tl. 

### I Trlchlurumethanethiol. 

### I I (1) 

### I O.ltS 

### I I I I I I 

### I I I I I 

### I I I I I

II.L:itcd ln ot·al cxpuuure column of**llack~~r•Hmc.J** lhH:nllll!llt: LnsLead of l.11halatlon exposure column. {N) '"**IHU~;II** Jteglstry, [SJ

..-Sax, [DJ "' i>OTReferences


### 1. Sax, 

### N. Irving. Dangerous Properties of Industrial Materials. 5th ed. Van Nostrand Reinhold Co., New York, NY, 1975. 

### 2. National Institute for Occupational Safety and Health. Registry of Toxic Effects of Chemical Substances. 

## u.s. Department of Health Education and Welfare Publication No. (NIOSH) 78-104-A. 

## u.s. Government Printing Office (GOP) Stock No. 017-033-00271, Washington,

**D.C.~** 1977. 

### 3. Windholz, Martha, Ed. The Merck Index. 9th ed. Merck and Co., Rahway, New Jersey, 1976. 

### 4. Gosselin, Robert 

### E., Harold 

## c. Hodge, Roger P. Smith and Marion N. Gleason. Clinical Toxicology of Commercial Products: Acute Poisoning. 4th ed. The Williams 

### & Wilkins Co., Baltimore, MD, 1966. 

### 5. The Farm Chemicals Handbook, Meister Publishing Co., Willoughby, 

### OB. 1979.

101Final Regula:ions**~261.33** Discarded Commercial Chemical Products, Off-Specification Species, Containers, and Spill Residues Thereof
The following materials or items are hazardous wastes if and when they are discarded or intended to be discarded: (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 chemical 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 container or inner liner removed from a container that has been used to hold any commercial chemical product ?r manufacturing chemical intermediate having the generic name listed in paragraph (e) of this Section, unless: (1) The container or inner liner has been triple rinsed using a solvent capable of removing the commercial chemical product or manufacturing chemical intermediate; (2) 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

of a container, the inner liner that

102manufactur7ng chemical intermediate with the container, has been removed. (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 paragraphs (e) or (f) of this Section. (Comment: The phrase "commercial chemical product

or manufacturing chemical intermediate having the generic name listed in ••• " refers to a chemical substance which is manufactured or formulated for commercial or manufacturing use. It does not refer to a material, such as a manufacturing process waste, that contains any of the substances listed in paragraphs (e) or (f). Where a manufacturing process waste is deemed to be a hazardous waste because it contains a substance listed in paragraphs (e) or 

### (f), such waste will be listed in either §§261.31 or 261.32 or will be identified
as a hazardous waste by the characteristics set forth in Subpart C of this Part.]



### 103(e) The comoercial chemical products or manufacturing chemical intermediates, referred to in paragraphs (a) through (d) of this section, are :dentified 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: Hazardous**'~as** te No. Substance P023 Acetaldehyde, chloroP002 Acetamide, N-(aminothioxomethyl)- P057 Acetamide, 2-fluoroP058 Acetic acid, fluoro-, sodium salt P066 Acetimidic acid, N-[(methylcarbamoyl)oxy]thio-, methyl ester 

### POOl 3-(alpha-Acetonylbenzyl)-4-hydroxycoumarin and salts P002 1-Acetyl-2-thiourea P003 Acrolein P070 Aldicarb P004 Aldrin POOS Allyl alcohol P006 Aluminum phosphide P007 5-(Aminomethyl)-3-isoxazolol P008 4-Aminopyridine P009 

# J Pl19 Ammonium picrate (R) Ammonium vanadate POlO Arsenic acid
104Ra zard ous**\~aste** No. Substance P012 Arsenic(III) oxide 

### POll Arsenic(V) oxide 

### POll Arsenic pentoxide P012 Arsenic trioxide P038 Arsine, diethylP0 54 Aziridine P013 Barium cyanide P024 Benzenamine, 4-chloro

### P077 Benzenamine, 4-nitroP028 Benzene, (chloromethyl)- P042 1,2-Benzenediol, 4-[1-hydroxy-2-(methylamino)ethyl]- P014 Benzenethiol P028 Benzyl**chlor~de** 

### POlS Beryllium dust P016 Bis(chloromethyl) ether P017 Bromoacetone P018 Br·ucine P021 Calcium cyanide Pl23 Camphene, octachloroPl03 Carbamimidoselenoic acid P022 Carbon bisulfide 

# P02J P09. Carbon disulfi-de Carbonyl chloride P033 Chlorine cyanide P023 Chloroacetaldehyde P024 p-Chloroaniline 105

### Hazardous waste No. 

### P026 P027 

### P029 P030 P031 

### P033 P036 

### P037 P038 

### P039 P041 

### P040 P043 P044 P045


### P071 P082 P046 P047 

### P034 P048 

### f\20 

# Pd5 P039 P049 P109 Substance 1-(o-Chlorophenyl)thiourea**3-Chloropr~pionitrile** 

### Copper cyanides Cyanides (soluble cyanide salts), not elsewhere specified Cyanogen Cyanogen chloride Dichlorophenylarsine Dieldrin Diethylarsioe 0,0-Diethyl S-(2-(ethylthio)ethyl] phosphorodithioate Diethyl-p-nitrophenyl phosphate 0,0-Diethyl 0-pyrazinyl phosphorothioate Diisopropyl fluorophosphate Dimethoate 3,3-Dimethyl-1-(methylthio)-2-butanone, 0-[(methylamino)carbonyl] oxime 0,0-Dimethyl 0-p-nitrophenyl phosphorothioate Dimethylnitrosamine alpha,alpha-Dimethylphenethylamine 4,6-Dinitro-o-cresol and salts 4,6-Dinitro-o-cyclohexylphenol 2,4-Dinitrophenol Dinoseb Diphosphoramide, octamethylDisulfoton 2,4-Dithiobiuret Dithiopyrophosphoric acid, tetraethyl ester



### 106

### H,azardous Waste No. POSO P088 P051 P042 P046 P084 PlOl P054 P097 P056 P057 P058 P065 P059 P051
P037
P060
P004
P060 P062

## ~6

# p~ P063 P063 P096 Substance Endosulfan Endothall Endrin Epinephrine Ethanamine, 1,1-dimethyl-2-phenylEthenamine, N-methyl-N-nitrosoEthyl cyanide Ethylenimine Famphur Fluorine Fluoroacetamide Fluoroacetic acid, sodium salt Fulminic acid, mercury(!!) salt (R,T) Heptachlor1,2,3,4,10,10-Hexachloro-6,7-epoxy-1,4,4a,5,6,7,8,8a-octahydroendo,endo-1,4:5,8-dimethanonaphthalene1,2,3,4,10,10-Hexachloro-6,7-epoxy-1,4,4a,5,6,7,8,8a-octahydroendo,exo-1,4:5,8-dimethanonaphthalene 1,2,3,4,10,10-Hexachloro-1,4,4a,5,8,8a-hexahydro-1,4:5,8-endo, endo-dimethanonaphthalene 1,2,3,4,10,10-Hexachloro-1,4,4a,5,8,8a-hexahydro-1,4:5,8-endo, exo-dimethanonaphthalene Hexachlorohexahydro-exo,exo-dimethanonaphthalene Hexaethyl tetraphosphate Hydrazinecarbothioamide Hydraz!ne, methylHydrocyanic acid Hydrogen cyanide Hydrogen phosphide

107

### Hazardous Waste No. P064 P007 P092 P065 P016 Pll2 Pll8 P059
P066 P067 P068 P064 P069 P071 P072 P073 P074 P074 P073 P075 P076 P077

# ~8 P076 P078 P081 Substance Isocyanic acid, methyl ester 3(2H)-Isoxazolone, 5-(aminomethyl)- Mercury, (acetato-O)phenylMercury fulminate (R,T) Methane, oxybis(chloroMethane, tetranitro- (R) Methanethiol, trichloro4,7-Methano-lR-indene, 1,4,5,6,7,8,8-heptachloro-3a,4,7,7atetrahydroMethomyl 2-Methylaziridine Methyl hydrazine Methyl isocyanate 2-Methyllactonitrile Methyl parathion alpha-Naphthylthiourea Nickel carbonyl Nickel cyanide Nickel(II) cyanide Nickel tetracarbonyl Nicotine and salts Nitric oxide p-Nitroaniline Nitrogen dioxide Nitrogen(II) oxide Nitrogen(IV) oxide Nitroglycerine (R)

108

### Hazardous Waste No. P082 P084 P050
P085 P087 P087 P088 P089 P034 P048 P047 P020 P009 P036 P092 P093 P094 P095 P096 P041 P044
"43

## ~4 P089 P040 P097 Substance N-Nitrosodimethylamine N-Nitrosomethylvinylamine 5-Norbornene-2,3-dimethanol, 1,4,5,6,7,7-hexachloro, cyclic sulfite Octamethylpyrophosphoramide Osmium oxide Osmium tetroxide 7-oxabicyclo[2.2.l]heptane-2,3-dicarboxylic acid Parathion Phenol, 2-cyclohexyl-4,6-dinitroPhenol, 2,4-dinitroPhenol, 2,4-dinitro-6-methylPhenol, 2,4-dinitro-6-(1-methylpropyl)- Phenol, 2,4,6-trinitro-, ammonium salt (R) Phenyl dichloroarsine Phenylmercuric acetate N-Phenylthiourea Phorate Phosgene Phosphine Phosphoric acid, diethyl p-nitrophenyl ester Phosphorodithioic acid, 0,0-dimethyl S-[2-(methylamino)-2-oxoethylJ ester Phosphorofluoric acid, bis(l-methylethyl) ester Phosphorothioic acid, 0,0-diethyl S-(ethylthio)methyl ester Phosphorothioic acid, 0,0-diethyl 0-(p-nitrophenyl) ester Phosphorothioic acid, 0,0-diethyl 0-pyrazinyl ester Phosphorothioic acid, 0,0-dimethyl 0-[p-((dimethylamino)-**sulf~~yl)phenyl]** 

### ester
109 

# -

### PllO P098 P099 ?070 PlOl P027 P069 P081 P017 Pl02 P003 P005 P067 Pl02 P008 P07 5 

### Plll Pl03 Pl04 Pl05 Pl06 Pl07



### ~08 

# -cita Pl08 Pll5 Pl09 Plumbane, tetraethylPotassium cyanide Potassium silver cyanide Propanal, 2-methyl-2-(methylthio)-, 0-[ (me thylamino)carbonyl) oxtne Propanenitrile Propanenitrile, 3-chloroPropanenitrile, 2-hydroxy-2-methyl1,2,3-Propanetriol, trinitrate- (R) 2-Propanone, 1-bromoPropargyl alcohol 2-Propenal 2-Propen-1-ol 1,2-Propylenimine 2-Propyn-1-ol 4-Pyridinamine Pyridine, (S)-3-(1-methyl-2-pyrrolidinyl)-, and salts Pyrophosphoric acid, tetraethyl ester Selenourea Silver cyanide Sodium azide Sodium cyanide Strontium sulfide Strychnidin-10-one, and salts

**Strychnidin-iO~one,** 2, 

### 3-dimethoxyStrychnine and salts Sulfuric acid, thallium(I) salt Tetraethyldithiopyrophosphate

110

### Hazardous Waste No. Substance PllO Tetraethyl lead Plll**Tetraethyl~;~o~hosphate** 

### Pll2 Tetranitromethane·(R) ( 

### P062 Tetraphosphoric acid, hexaethyl ester Pll3 Thallic oxide Pll3 Thallium(III) oxide Pll4 Thallium(!) selenite Pll5 Thallium(!) sulfate P045 Thiofanox P049 Thioimidodicarbonic diamide P014 Thiophenol Pll6 Thiosemicarbazide ?026 Thiourea, (2-chlorophenyl)- P072 Thiourea, 1-naphthalenylP093 Thiourea, phenylPl23 Toxaphene Pll8 Trichloromethanethiol Pll9 Vanadic acid, ammoniu:n salt Pl20 Vanadium pentoxide Pl20 Vanadium(V) oxide POOl Warfarin Pl21 Zinc cyanide

# ~22 Zinc phosphide (R,T)

111(f) 

### The commercial chemical products or manufacturing chemical intermediates, referred to in paragraphs (a), (b), and (d) of this section, are identified as toxic wastes (T) unless otherwise designated and are subject to the small quantity exclusion defined in §261.5(a) and (f). [Comment: For the convenience of the regulated**comm~•ity,** 

### the primary hazardous properties of these materials have been indicated by the ltters 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: Hazardous Waste No. Substance UOOl Acetaldehyde (I) U034 Acetaldehyde, trichloroUl87 Acetamide, N-(4-ethoxyphenyl)- 

## uoos Acetamide, N-9H-fluoren-2-ylU112 Acetic acid, ethyl ester (I)
. Ul4.4 Acetic acid, lead salt U214 Acetic acid, thallium(I) salt U002 Acetone (I) U003 Acetonitrile (I,T) U004 Acetophenone U005 2-Acetylaminofluorene

# ~06 07 Acetyl chloride (C,R,T) Acrylamide U008 Acrylic acid (I) U009 Acrylonitrile



### 112

### Hazardous \-taste No. UlSO UOll U012 U014 U015 UOlO

''- 

### Ul57 U016 U016 t.r017 t;018 U018 U094 U012 U014 U049 U093 Ul58 U222 Ul81 

# 119
38 Substance Alanine, 3-[p-bis(2-chloroethyl)amino]phenyl-, LAmitrole Aniline (I,T) Auramine Azaserine Azirino(2',3':3,4)pyrrolo(l,2-a)indole-4,7-dione, 6-amino8-[((aminocarbonyl)oxy)methyl]-1,1a,2,8,8a,8b-hexahydro-8amethoxy-5-methyl-, Benz[j]aceanthrylene, 1,2-dihydro-3-methylBenz[ c] acridine 3,4-Benzacridine Benzal chloride Benz[ a] anthracene 1,2-Benzanthracene· 1,2-Benzanthracene, 7,12-dimethylBenzenamine (I,T) Benzenamine,

**4,4'-c~rbonimidoylbis(N,N-dimethyl** 

### Benzenamine , 4-chloro-2-methylBenzenamine, N,N'-dimethyl-4-phenylazoBenzenamine, 4,4'-methylenebis(2-chloroBenzenamine, 2-methyl-, hydrochloride Benzenamine, 2-methyl-5-nitroBenzene (I,T) Benzeneacetic acid, 4-chloro-alpha-(4-chlorophenyl)-alpha-hydroxy, ethyl ester

11 3

### Hazardous Haste 

### '

. •**~** 0. 

### Substance ,_.030 Benzene, l·bromo-4-phenoxyU037 Benzene, chloroU190 1,2-Benzenedicarboxylic acid anhydride U028 1,2-Benzenedicarboxylic acid, [bis(2-ethylhexyl)] ester U069 1,2-Benzenedicarboxylic acid, dibutyl ester U088 1,2-Benzenedicarboxylic acid, diethyl ester U102 1,2-Benzenedicarboxylic acid, dimethyl ester Ul07 1,2-Benzenedicarboxylic acid, di-n-cetyl ester U070 Benzene, 1,2-dichloroU071 Benzene, 1,3-dichloroU072 Benzene, 1,4-dichloroU017 Benzene, (dichloromethyl)- U223 Benzene, 1,3-diisocyanatomethyl- (R,T) U239 Benzene, dimethyl- (I,T) U201 1,3-Benzenediol U127 Benzene, hexachloroU056 Benzene, hexahydro- (I) U188 Benzene, hydroxyU220 Benzene, methylU105 Benzene, 1-methyl-2,4-dinitroU106 Benzene, 1-methyl-2,6-dinitroU203 Benzene, 1,2-methylenedioxy-4-allyl-

# ~I Benzene, 1,2-methylenedioxy-4-propenylU090 Benzene, 1,2-methylenedioxy-4-propyl

### 114

### Hazardous**l~aste** 

### No. 

## uoss Ul69 Ul83 Ul85 U020 U020 U207 U023 U234 

### U021 U202 U120 U022 U022 Ul97 U023 

## uoso U085 U021 U073 

### U091**~95**

## ~4 U027 U244 Substance Benzene, (1-methylethyl)- (I) Benzene, nitro- 

### (I,T) Benzene, pentachloroBenzene, pentachloro-nitroBenzenesulfonic acid chloride 

### (C,R) Benzenesulfonyl chloride 

### (C,R) Benzene, 1,2,4,5-te.trachloroBenzene, (trichloromethyl)- 

### (C,R,T) Benzene, 1,3)5-trinitro- 

### (R,T) Benzidine 1,2-Benzisothiazolin-3-one, 1,1-dioxide Benzo[j,k]fluorene Benzo [a] pyreoe 3,

### 4-Benzopyrene p-Banzoquinone Benzotrichloride 

### (C,R,T) 1,2-Benzphenanthrene 2,2'-Bioxirane (I,T) 

### (1,1'-Biphenyl)-4,4'-diamine (1,1'-Biphenyl)-4,4'-diamine, 3,3'-dichloro- (1,1'-Biphenyl)-4,4'-diamine, 3,3'-dimethoxy- (1,1'-Biphenyl)-4,4'-diamine, 3,3'-dimethylBis(2-chloroethoxy) methane Bis(2-chloroisopropyl) ether Bis(dimethylthiocarbamoyl) disulfide



### 115

### Hazardous '../aste**~o.** 

### U028 U246 U225 U030 Ul28 U172 U035 U031 Ul59 Ul60 U053 U074 U031 Ul36 U032 U238 U178 U176 Ul77 U219 U097

### ~15 

# u& U033 Substance Bis(2-ethylhexyl) phthalate Bromine cyanide Bromoform 4-Bromophenyl phenyl ether 1,3-Butadiene, 1,1,2,3,4,4-hexachloro1-Butanamine, N-buty1-N-nitrosoButanoic acid, 4-[Bis(2-chloroethyl)amino]benzene1-Butanol (I) 2-Butanone (I,T) 2-Butanone peroxide (R,T) 

### 2-Butenal 2-Butene, 1,4-dichloro- (I,T) n-Butyl alcohol (I) Cacodylic acid Calcium chromate Carbamic acid, ethyJ. ester Carbamic acid, methylnitroso-, ethyl ester Carbamide, N-ethyl-N-nitrosoCarbamide, N-methyl-N-nitrosoCarbamide, thioCarbamoyl chloride, dimethylCarbonic acid, dithallium(I) salt Carbonochloridic acid, methyl ester 

### (I,T) Carbon oxyfluoride 

### (R,T)

### Hazardous**t~aste** 

### No. Substance U211 Carbon tetrachloride U033 Carbonyl fluoride (R,T) U034 Chloral U035 Chlorambucil U036 Chlordane, technical U026 Chlornaphazine U037 Chlorobenzene U245 1-(p-Chlorobenzoyl)-5-methoxy-2-methylindole-3-acetic acid U039 4-Chloro-m-cresol U041 1-Chloro-2,3-epoxypropane U042 2-Chloroethyl vinyl ether U044 Chloroform U046 Chloromethyl methyl ether U047 beta-Chloronaphthalene U048 a-Chlorophenol U049 4-Chloro-o-toluidine, hydrochloride U032 Chromic acid, calcium salt 

## uoso Chrysene 

### UOSl Creosote 0052 

### Cresols U052 Cresylic acid

# uo~ uoss Crotonaldehyde Cumene (I) U246 Cyanogen bromide

117

### Hazardous '.,1

### aste**~o.** L'l97 

### U056 1..'057 Ul30 U058 U240 U059 U060 U06l Ul42
U062 Ul33 U221 U063 U063 U064 U064 U066 U069 U062 U070

### U07~ U072 U073 Substance 1,4-Cyclohexadienedione Cyclohexane (I) 

### Cyclohexanone (I) 1,3-Cyclopentadiene, 1,2,3,4,5,5-hexachloroCyclophosphamide 2,4-D, salts and esters Daunomycin DDD DDT**Decachlorooc~ahydro-1,3,4-metheno-2H-cyclobuta[c,d)­** 

### pentalen-2-one Diallate Dia::line (R, T) niaoinotoluene Dibenz[a,h]anthracene 1,2:5,6-Dibenzanthracene 1,2:7,8-Dibenzopyrene Dibenz[a,iJpyrene 1,2-Dibromo-3-chloropropane Dibutyl phthalate S-(2,3-Dichloroallyl) diisopropylthiocarbamate a-Dichlorobenzene m-Dichlorobenzene p-Dichlorobenzene 3,3'-Dichlorobenzidine


### 118

### Hazardous

**t~aste** 

### No. Substance U074 1,4-Dichloro-2-butene (I,T) U075 Dichlorodifluoromethane Ul92 3,5-Dichloro-N-(1,1-dimethyl-2-propynyl)benzamide U060 Dichloro diphenyl dichloroethane U061 Dichloro diphenyl trichloroethane U078 1,1-Dichloroethylene U079 1,2-Dichloroethylene U025 Dichloroethyl ether 11081 2,4-Dichlorophenol U082 2,6-Dichlorophenol U240 2,4-Dichlorophenoxyacetic acid, salts and esters U083 1,2-Dichloropropane U084 1,3-Dichloropropene U085 1,2:3,4-Diepoxybutane (I,T) U108 1,4-Diethylene dioxide U086 N,N-Diethylhydrazine U087 0,0-Diethyl-S-methyl-dithiophosphate U088 Diethyl phthalate U089 Diethylstilbestrol Ul48 1,2-Dihydro-3,6-pyradizinedione U090 Dihydrosafrole



# ~ 0 

### 3,3'-Dimethoxybenzidine Dimethylamine (I) U093 Dimethylaminoazobenzene U094 7,12-Dimethylbenz[a]anthracene

JJ9

### Hazardous Waste No. U095 U096 U097 U098 U099 UlOl 

### Ul02 Ul03 Ul05 Ul06 U107 U108 Ul09 

### UllO U111 UOOl Ul74 

### U067 U076 U077 

### Ull4 Ul31

# ~ U003 Substance 3,3'-Dimethylbenzidine alpha ,alpha-Dimethylbenzylhydroperoxide (R) Dimethylcarbamoyl chloride 1,1-Dimethylhydrazine 1,2-Dimethylhydrazine 2,4-Dimethylphenol Dimethyl phthalate Dimethyl sulfate 2,4-Dinitrotoluene 2,6-Dinitrotoluene Di-n-octyl phthalate 1,4-Dioxane 1,2-Diphenylhydrazine Dipropylamine (I) 

### Di-N-propylnitrosamine Ethanal (I) 

### Ethanamine, N-ethyl-N-nitrosoEthane, 1,2-dibromoEthane, 1,1-dichloroEthane, 1,2-dichloro1,2-Ethanediylbiscarbamodithioic acid Ethane, 1,1,1,2,2,2-hexachloroEthane, 1,1'-[methylenebis(oxy))bis[2-chloroEthanenitrile (I,T)

12 0

### Hazardous Waste No. Substance Ull7 Ethane, 1,1 '-oxybis- (I) U025 Ethane, l,l'-oxybis[2-chloroUl84 Ethane, pentachloroU208 Ethane, 1,1,1,2-tetrachloroU209 Ethane, 1,1,2,2-tetrachloroU218 Ethanethioamide U227 Ethane, 1,1,2-trichloroU043 Ethene, chloroU042 Ethene, 2-chloroethoxyU078 Ethene, 1,1-dichloroU079 Ethene ,, trans-1, 2-dichloroU210 Ethene, 1,1,2,2-tetrachloroUl73 Ethanol, 2,2'-(nitrosoimino)bisU004 Ethanone, 1-phenylU006 Ethanoyl chloride (C,R,T) Ull2 Ethyl acetate 

### (I) Ull3 Ethyl acrylate (I) U238 Ethyl carbamate (urethan) U038 Ethyl 4,4'-dichlorobenzilate Ul14 Ethylenebis(dithiocarbamic acid) U067 Ethylene dibromide U077 Ethylene dichloride

# ~ Ethylene oxide (I,T) Ul16 Ethylene thiourea

121

### Hazardous Waste No. 

### Ull7 U076 Ul18 Ull9 Ul39 Ul20 Ul22 Ul23 Ul24 Ul25 Ul47 U213 U125 Ul24 U206 Ul26 Ul63 Ul27 U128 U129 Ul30 Ul31

# ~ U243 Substance Ethyl ether (I) Ethylidene dichloride Ethylmethacrylate Ethyl methanesulfonate Ferric dextran Fluoranthene Formaldehyde Formic acid 

### (C,T) Furan {I) 

### 2-Furancarboxaldehyde 

### (I) 2,5-Furandione Furan, tetrahydro- 

### (I) Furfural (I) Furfuran (I) D-Glucopyranose, 2-deoxy-2(3-methyl-3-nitrosoureido)- Glyc idylaldehyde Guanidine, N-nitroso-N-methyl-N'nitroHexachlorobenzene Hexachlorobutadiene Hexachlorocyclohexane (gamma isomer) Hexachlorocyclopentadiene Hexachloroethane Hexachlorophene Hexachloropropene

122

### Hazardous Waste No. 

### Ul33 U086 U098 U099 U109 Ul34 Ul34 

### Ul35 U096 U136 Ull6 Ul37 Substance Hydrazine (R,T) 

### Hydrazine, 1,2-diethylHydrazine, 1,1-dimethylHydrazine, 1,2-dimethylHydrazine, 1,2-diphenylHydrofluoric acid 

### (C,T) Hydrogen fluoride 

### (C,T) Hydrogen sulfide Hydroperoxide, 1-methyl-1-phenylethyl- (R) 

### Hydroxydimethylarsine oxide 2-Imidazolidinethione Indeno[l,2,3-cd]pyrene**..iA,¥'~· _~.t.4~jr-------...;If.'!t"!CtdM:ommethat**  

### :tn ...,. 

### Ul39 Iron dextran U140 Isobutyl alcohol (I,T) 

### U141 Isosafrole U142 Kepone U143 Lasiocarpine U144 Lead acetate U145 Lead phosphate 

### U146 Lead subacetate Ul29 

### Lindane U147 Maleic anhydride 

### U148 Maleic hydrazide U149 Malononitrile 

### U150 Melphalan

123

### Hazardous Waste No. Ul51 Ul52 U092 U029 U045 U046 U068 U080 U075 Ul38 Ull9 U211 Ul21 Ul53 U225 U044 Ul21 Ul23 U036 Ul54 U155 Ul54 U029

### ~6 uo@ Ul56 Substance Mercury Methacrylonitrile (I,T) Methanamine, N-methyl- (I)**~!ethane,** 

### bramoMethane, chloro- (I,T) Methane, chloromethoxyMethane, dibromoMethane, dichloroMethane, dichlorodifluoroMethane, iodoMethanesulfonic acid, ethyl ester Methane, tetrachloroMethane, trichlorofluoroMethanethiol 

### (I,T) Methane, tribromoMethane, trichloroMethane, trichlorofluoroMethanoic acid (C,T) 

### 4,7-Methanoindan, 1,2,4,5,6,7,8,8-octachloro-3a,4,7,7a-tetrahydro· Methanol (I) 

### Methapyrilene Methyl alcohol (I) 

### Methyl bromide 1-Methylbutadiene (I) Methyl chloride (I,T) Methyl chlorocarbonate (I,T)

12 4

### Hazardous Waste No.
U226 Ul57 

### Ul58 Ul32 U068 U080 Ul22 U159 U160 Ul38 

### Ul61 Ul62 Ul63 U161 U164 

### U010 U059



### U165 U047 

### U166 U236



### U166



# ~

**Ul6~** 

### Ul67 Substance Methyl chloroform

**3-Methylch~lanthrene** 

### 4,4'-Hethylenebis(2-chloroaniline) 2,2'-Methylenebis(3,4,6-trichlorophenol) Methylene bromide Methylene chloride Methylene oxide Methyl ethyl ketone (I,T) Methyl ethyl ketone peroxide (R,T) 

### Methyl iodide Methyl isobutyl ketone 

### (I) Methyl methacrylate 

### (I,T) N-Methyl-N'-nitro-N-nitrosoguanidine 4-Methyl-2-pentanone 

### (I) Methylthiouracil Mitomycin C 

### 5,12-Naphthacenedione, (85-cis)-8-acetyl-10-[(3-amino2,3,6-trideoxy-alpha-L-lyxo-hexopyranosyl)oxyl]-7,8,9,10-tetrahydro-6,8,11-trihydroxy-1-methoxyNaphthalene Naphthalene, 2-chloro1,4-Naphthalenedione 2,7-Naphthalenedisulfonic acid, 3,3'-[(3,3'-dimethyl- (1,1 '-biphenyl)-4,4'diyl)]-bis (azo)bis(S-amino-4-hydroxy)-, tetrasodium salt 1,4,Naphthaquinone 1-Naphthylamine 2-Naphthylal.lline

12 5

### Hazardous 'Waste No. Ul68 1:026 :.;16 9 

### Ul70 l,;l71 Ul72 Ul73 Ul74 Ulll Ul76 Ul77 Ul78 ;]17 9 

### Ul80 Ul81 Ul93 U058
Ull5 U041 Ul82 U183 Ul84 Ul85 U242

# ~ Ul87 

## nss Substance beta-Naphthylamine 2-Naphthylamine, N,N'-bis(2-chloromethyl)- Nitrobenzene (I,T) p-Nitrophenol 2-Nitropropane 

### (I) N-Nitrosodi-n-butylamine N-Nitrosodiethanolamine N-Nitrosodiethylamine N-Nitroso-N-propylamine N-Nitroso-N-ethylurea N-Nitroso-N-methylurea N-Nitroso-N-methylurethane N-Nitrosopiperidine N-Nitrosopyrrolidine 5-Nitro-o-toluidine 1,2-0xathiolane, 2,2-dioxide 2H-1,3,2-0xazaphosphorine, 2-[bis(2-chloroethyl)amino)tetrahydro2-oxide Oxirane (I,T) Oxirane, 2-(chloromethyl)- Paraldehyde Pentachlorobenzene Pentachloroethane Pentachloronitrobenzene Pentachlorophenol 1,3-Pentadiene (I) Phenacetin Phenol

126

### Hazardous Waste No. U048 U039 U081 U082 UlOl Ul70 U242 U212 U230 U231 Ul37 Ul45 U087 U189 U190 U191 Ul92 Ul94 UllO U066 Ul49 Ul71

## ~**Ul~** Substance Phenol, 2-chloroPhenol, 4-chloro-3-methylPhenol, 2,4-dichloroPhenol, 2,6-dichloroPhenol, 2,4-dimethylPhenol, 4-nitroPhenol, pentachloroPhenol, 2,3,4,6-tetrachloroPhenol, 2,4,5-trichloroPhenol, 2,4,6-trichloro1,10-(1,2-Phenylene)pyrene Phosphoric acid, Lead salt Phosphorodithioic acid, 0,0-diethyl-, S-methylester Phosphorous sulfide (R) Phthalic anhydride 2-Picoline Pronamide 1-Propanamine 

### (I,T) 1-Propanamine, N-propyl- (I) 

### Propane, 1,2-dibromo-3-chloroPropanedinitrile Propane, 2-nitro- 

### (I) Propane, 2,2'oxybis[2-chloro1,3-Propane sultone

127

### Hazardous Waste No. U23S Ul26 

### Ul40 U002 U007 U084 

### U243 U009 

### Ul52 U008 

### Ull3 U118 Ul62 U233 

### Ul94 U083 Ul96 

### Ul55 Ul7 9 

### Ul91 

### Ul64 Ul80 U200

## ~**~20~** U20J U204 Substance 1-Propanol, 2,3-dibromo-, phosphate (3:1) 1-Propanol, 2,3-epoxy1-Propanol, 2-methyl- (I,T) 

### 2-Propanone (I) 2-Propenamide Propene, 1,3-dichloro1-Propene, 1,1,2,3,3,3-hexachloro2-Propenenitrile 2-Propenenitrile, 2-methyl- ('I, T) 

### 2-Propenoic acid (I) 

### 2-Propenoic acid, ethyl ester 

### (I) 2-Propenoic acid, 2-methyl-, ethyl ester 2-Propenoic acid, 2-methyl-, methyl ester (I,T) 

### Propionic acid, 2-(2,4,5-trichlorophenoxy)- n-Propylamine (I,T) 

### Propylene dichloride Pyridine Pyridine, 2-[(2-(dimethylamino)ethyl)-2-thenylaminoJPyridine, hexahydro-N-nitrosoPyridine, 2-methyl4(1H)-Pyrimidinone, 2,3-dihydro-6-methyl-2-thioxoPyrrole, tetrahydro-N-nitrosoReserpine Resorcinol Saccharin and salts Safrole Selenious acid

128

### Hazardous Waste No. Substance U204 Selenium dioxide U205 Selenium disulfide (R,T) U015 L-Serine, diazoacetate (ester) U233 Silvex U089 4,4'-Stilbenediol, alpha,alpha'-diethylU206 Streptozotocin Ul35 Sulfur hydride Ul03 Sulfuric acid, dimethyl ester Ul89 Sulfur phosphide (R) U205 Sulfur selenide (R,

### T) U232 2,4,5-T U207 1,2,4,5-Tetrachlorobenzene U208 1,1,1,2-Tetrachloroethane U209 1,1,2,2-Tetrachloroethane U210 Tetrachloroethylene U212 2,3,4,6-Tetrachlorophenol U213 Tetrahydrofuran 

### (I) U214 Thallium(!) acetate U215 Thallium(!) carbonate U216 Thallium(!) chloride U217 Thallium(!) nitrate U218 Thioacetamide

# ~~ U219 Thiomethanol (I,T) Thiourea

129

### Hazardous Waste So. 

### u244 U220 U221 U223 U222 UOll 

### U226 U227 U228 U228 Ul21 U230 U231 U232 U234 U182 U235 U236 U237 U237 U043 U239



## l~ Substance Thiram Toluene To1uenediamine Toluene diisocyanate (R,T) a-Toluidine hydrochloride 1H-1,2,4-Triazol-3-amine 1,1,1-Trichloroethane 1,1,2-Trichloroethane Tr ichloroethene Trichloroethylene Trichloromonofluoromethane 2,4,5-Trichlorophenol 2,4,6-Trichlorophenol 2,4,5-Trichlorophenoxyacetic acid sym-Trinitrobenzene (R,T) 1,3,5-Trioxane, 2,4,5-trimethylTris(2,3-dibromopropyl) phosphate Trypan blue Uracil, 5[bis(2-chloromethyl)amino]- Uracil mustard Vinyl chloride Xylene (I) Yohimban-16-carboxylic acid, 11,17-dimethoxy-18- [(3,4,5-trimethoxy-benzoyl)oxy]-, methyl ester,

130§261.33

**~pdated** April 1981. F R d t ••••••.••

E • Discarded Commercial Chemical Products, Off-Specification Species, Containers, and Spill Residues Thereof (§261.33) 1. Deletion of Indomethacin The Agency, at 45 FR 76533, indicated that the drug indomethacin would continue to be regulated as hazardous waste U245 when discarded. This action was a mistake, and resulted from the confusion of indomethacin's generic chemical
name (1-(p-chlorobenzoyl)-5-methoxy-2-methylindole-3-acetic acid) with a very similar compound appearing on the Agency's

**Carci~ogen** Assessment Group's list of substances exhibiting substantial evidence of carcinogenicity. Since indomethacin does not otherwise appear to pose a substantial threat to human health and the environment if managed improperly, the Agency is deleting it from §261.33(£). 2. Regulation of Containers Which Formerly Held Acutely Hazardous Off-Specification Materials, and Regulation of Cleanup Residues of Spilled Off-Specification Materials

Questions have been raised as to whether §§261.33(c) and (d) of the regulations apply to containers which formerly held acutely hazardous off-specification materials (as well
as to containers which formerly held commercial products and manufacturing chemical intermediates) and to cleanup residues of spilled off-specification materials (as well as to cleanup of spills of commercial products and manufacturing chemical intermediates). These provisions do in fact apply


### 131**~hen** off-specification materials are involved, but the regulatory language is**so~e~hat** confusing. §§261.33(c) and (d) apply to materials listed in §§261.33(e) and (f). Both of these provisions cover by reference, among other materials, the off-specification materials referred to in §261.33(b).**Ho~ever,** to avoid any confusion, the Agency has decided to amend §§261.33 (c) and (d) to refer explicitly to offspecification materials. A conforming amendment also has been added to §261.5(e)(2) to make clear that the 100 kg cutoff linit for cleanup residues of spills of §261.33(e) materials applies to spills of acutely hazardous offspecification materials.l 3. Correction of Non-Substantive Errors In the November 25, 1980 Federal Register, the wrong EPA Hazardous Waste Number was used to reference a specific chemical in the preamble to this section of the November 25, 1980 Federal Register (45 FR 78535). Specifically, toxaphene listed in the table at 45 FR 78535 as EPA Hazardous Waste No. 0244 is incorrect; the number should read 0224. This typographical error is corrected by this notice. Finally, a number of mistakes and typographical errors**~ere** noted in §§261.33(e) and (f) after**revie~ing** this section (45 FR 78541

- 78544). These are discussed in the**follo~ing** table: £A 7evised version of §261.33(c),

## ~hich clarifies the status of residues of §261.33(c) materials in containers, is slated to**beco~e** effective on May 25, 1981. See 45 FR at 78529**(~ovember** 25, 1980). The Agency will conform the text of that**a~endment ~ith**  the regulatory languaeP. adopted today at the time of final promulgation. 132EPA HAZARDOUS WASTE NUMBER 

# POOlJ

P006
1'008 P043
P047

P060
POfi«J

l' 1tit U026 

### UOJS UOS8

U067 COMPOUND NAME 3-(alpha-acetonylbenzyl)- 4-hydroxycoumarin and salts Aluminum phosphide 4-aAminopyridine Phosphorofluoric acid, bis- (1-methylethyl)-ester Phenol,**2,4-dinitro-6-me~Jyl**

Hexachlorohexahydro-exo ,exodimethanonaphthalene Phosphorothioci ncid, 0,0-di-- ethyl 0-(p-nitrophenyl) ester Thallium (I) selenite ACTION TAKEN spelling corrected
corrected reason for Ustlng spelling corrected spelling corrected listing corrected

spelling corrected spelling corrected spelling corrected 2-Naphthylamine, N,N'-bis(2- spelling corrected chloromethyl)- Butanoic acid, 4-[Bls(2-chloro- spelling correctedethyl)amino]benzene2ll-1,3,2-0xazaphoaphorine, 2- spelling corrected (bis(2-chloro-ethyl)amino]- tetrahydro-, oxide-2 Etylene dibromide spelling corrected REASON compound should read: 3-(alpha-Acetonylhenzyl)-4-hydroxycoumarin and salts. compound should read: Alumf.num phosphide (R,T). compound should read: 4-Aminopyri.dine. compound should read: Phosphorofluorldic acid, bis(l-methylethyl) ester. On May 19, 1980, the compound '"as originally listed as 2,4-Dinitrocresol and salts. On Nov. 25, 1980, this compound was listed as Phenol, 2,4-dinitro-6-methyl-. The words "and salts" were inadverently left out. The listing should read: Phenol, 2,'•-di-nitro6-methyl-, and salts. compound should read: llexachlorohexahydroendo,erido-dimethanonaphthalene. compound should read: Phosphorothio k**a~** fd, 0,0-dlethyl 0-(p-nitrophenyl) ester.

compound should read: Thnlllum (1) aelen.fcle. compound should read: 2-Naphthylamine, N,N-bis(2-chloroethyl)-. compound should read: Butanoic acid, 4-[bis(2-chloroethyl)amino)benzene-. compound should read: 21l-1,3,2-0xazaphosphorine, 2-[bis(2- chloroethyl)amino)tetrahydro-, 2-oxide. compound should read: Ethylene dihromlde.

I,

### EPA HAZARDOUS WASTE NUMBER COMPOUND**NA~ffi** U087 Phosphorodithioic acid, 0,0- diethyl-, S-methylester U09J Benzenamlne, N,N'-dimethyl4.-phenylazoU105 Benzene, 1-methyl-1-2,4-dinitroUlll Di-N-propylnitrosamine
Ulll N-Nitroso-N- propylamine
Ull4 Ethylenebis(dithiocarbamic acid)

Ull5 Ethlene oxide Ull8 Ethylmethacrylate Ul21 Methane, trichlorofluoroUl26 1-Propanol, 2,3-epoxyUl37 1,10-(1,2-phenylene)pyrene 

### ACTION**TAKI~N** spelling corrected spelling corrected spelling corrected spelling corrected spelling corrected change to Ethylenebis(dithiocarbamic acid), salts and esters

spelling corrected spelling corrected
one listing deleted spelling corrected spelling corrected 

### REASON compound should read: Phosphorodlthloic acid, 0,0-diethyl S-methyl ester. compound should read: Benzennm l.nc, N,N-dimethyl-4-(phenylazo)-. compound should read: Benzene, 1-methyl-2,4-dinltro-. compound should read: Di-n-propylnitrosamlne. compound should read: N-Ni trosodi-n-propylamine. On May 19, 1980, the compound was originally listed as Ethyleneblsdlthiocarbamate. The November 25, 1980 Federal Register changed thls compound to Ethylenebis(dithlocarbamic acid), without giving a reason for this change. The correct listing of Ull4, is Ethylenebis(dithiocarbamic acid), salts and esters; which J.s a clarification of the nay 19, 1980 listing. compound should read: Ethylene oxide. compound should read: Ethyl methacrylate. The compound was inadverently listed twice. compound should read: 1-Propanal, 2,3-epoxycompound should read: 1,10-(1,2-Phenylene)pyrene.f':l•A HAZARDOUS WASTE NUHDER CONPOUND**NAHI~**

f Ul45 Phosphor.ic ncid, Lead snlt
Ul48 1, 2-Dihydro-3,6-pyradizinedione · UlSS Pyridine, 2-[ (2-dimethylamino) -2-thenylamino]-
Ul63 Guanidine, N-nltroso-N-methylN'nitroUl66 Ul82
Ul85
U189 U202

U222

U237 1,4-Naphthaquinone 1,3,5-Trioxane,2,4,5- tr !methylBenzene, pentachloro-nitroPhosphorous sulfide 1,2-nenzisothiazolin-3-one, 1,1-dioxide

0-Toluidine hydrochloride

nenzene, 1, 3,5-trinitroUracil, 5[bis(2-chloromethyl)- amino]- ACTION TAKEN spelling con:-ccted spelling corrected spelling corrected
spelling corrected spelling corrected spelling corrected spelling corrected spelling corrected listing corrected

spelling corrected
hazardous waste number corrected spelling corrected
11S REASON compound should rend: Phosphorlc acid, lend salt. compound should read:**l,2~Dihydro-3,6-pyridazinedione.** compound should read: Pyrldine, 2-[ (2-dimethylamino) ethyl]-2-thenylamino-. compound should read: Guanidine, N-nitroso-N-methyl-N '-nitro-. compound should read:**1,4-Na~\thoquinone.** compound should read: 1,3,5-Trioxane, 2,4,6-trimethyl-. compound should read: Benzene, pentachloronltro-. compound should read: Phosphorus sulfide. On November 25, 1980, the compound was correctly listed as Saccharin and salts, however in the listing under its chemical name, the words "and salts" were inadverently left out. Compound should read 1,2-nenzisothiazolin-3-one, 1,1- dioxide, and salts. compound should read: o-Toluidine hydrochloride. hazardous waste number appears as "0234" and should be U234. compound should read: Uracil, 5 [his(2-chloroethyl)amino)-.EPA HAZARDOUS WASTE NUHBER



### U247 COMPOUND NMlli 2,44-D, salts and esters

Methoxychlor, also known as Ethane, 1,1,1-trichloro2, 2-bis(p-methoxyphenyl) ACTION TAKEN spelling corrected
added to §261.33(f)

136 REASON compound should read: 2,4-D, salts and esters. This compound was ommlted mistakenly from §261.33(£). Methoxychlor is an EP Toxicity constituent and is also one of the materials regulated by a National Interim Primary

**Drinki~g** Water Standard; its toxicity therefore is well recognized. The background document for §261.33 indicated that all compounds for which a National Interim Primary Drinking Standard has been established are to be inculcled under §261.33 (Background Document for §261.33, April 30, 1980, at pp. 19, 70), and all of the other pesticides covered by a Primary Drinking \-later Standard are included under §261.33. In fact, comments were received questioning the (unintended) omission of methoxychlor. The Agency therefore believes that it has provided ndeqwtt:e notlc.e for inclusion of this compound in §261.33, and is taking thls opportunity to add it to §261.33(£).

### 3 • The authority citation for Part 261 reads as

**follo~s:** AUTHORITY: Sees. 1006, 2002(a), 3001, and 3002 of the Solid Waste Disposal Act, as amended by the Resource Conservation and Recovery Act of of 1976, as amended (42 

## u.s.c. 6905, 6912(a), 6921 and 6922).

**~.** In FR Doc. 80-36683, appearing at page 78531 in the issue of November 25, 1980, 40 CFR 261.4(b) is corrected by redesignating paragraph 

### (8) as 

### (9). (1} A total of one kilogram of commercial chemical products and oanufacturing chemical intermediates having the generic names listed in §261.33(e), and off-specification commercial chemical products and manufacturing chemical intermediates which, if they met specifications, would have the generic names listed in §261.33(e). (2) A total of 100 kilograms of 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 products or manufacturing chemical intermediates having the generic
names listed in §261.33(e), or any residue or

**~9ontaminated** soil, water or other debris resulting from the cleanup of a spill, into or on any land or water, of any off-specification commercial chemical
137products or oanufacturing chemical intermediates which, if they met specifications, would have the gene=ic names listed in §261.33(e). 10. Amend §261.33 by revising the first sentence of paragraphs (c), (d), (e) and (f) to read as follows: §261.33 Discarded Commercial Chemical Products, OffSpecification Species, Containers, and Spill Residues Thereof 

## * * * * * (b) 

## * * * (c) Any container or inner liner removed from a container that has been used to hold**a~y** commercial chemical product or manufacturing chemical intermediate having the generic names listed in paragraph (e) of this section, or any container or inner liner removed from a container that has been used to hold any off-specification chemical product and manufacturing chemical intermediate which, if it**~et** specifications, would have the generic name listed in paragraph (e) of this section, unless: 

## * * 

## * (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

# ~~ed in paragraphs (e) or (f) of this section, or any residue or contaminated soil, water or other debris resulting 

### 138from the cleanup of a spill, into or on any land or water, of any off-specification chemical product and oanufacturing chemical intermediate which, if it met specifications, would have the generic name listed in paragraphs (e) or (f) of this section. 

## * * * (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 be the small quantity exclusion defined in §261.5(e)- 

## * * * (f) The commercial chemical products, manufacturing chemical

**inter~edia~es,** 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 exclusion defined in §261.5 (a) and (f). 

## * 

## * * * 

# * * 

## * * 11. Aoend §261.33(f) by removing the following waste stream: Hazardous Waste No. 0245

0245

139 Substance 1-(p-Chlorobenzoyl)-5

**methoxy-2-~ethylindole** 3-acetic acid Indomethacin

### 12. Amend §261.33(f) by 

### adding the following waste stream: Hazardous Waste No. U247 U247



### 140 Substance MethoxychlorEthane,l,l,l,-trichloro2,2-bis(p-methoxyphenyl)

### §261.33 (e) and (f) 

### updated- Spelling errors correc:ed 4/23/81

- Baldev Bathija 

### HWNO P023 P002 P057 P058 P066 POOl P002 P003 P070 P004 POOS P006 P007 P008 P009 Pll9 

### POlO P012 

### POll POll P012 P038 P054 P013 P024 P077 

# ~) SUBSTANCE Acetaldehyde, chloroAcetamide, N-(aminothioxomethyl)- Acetamide, 2-fluoroAcetic acid, fluoro-,

**sodiu~** 

### salt Acetimidic acid, N-[(methylcarbamoyl)oxy]thio-, methyl ester 3-(alpha-Acetonylbenzyl)-4-hydroxycoumarin and salts 1-Acetyl-2-thiourea Acrolein Aldicarb Aldrin Allyl alcohol Aluminum phosphide (R,T) 5-(Aminomethyl)-3-isoxazolol 4-Aminopyr

### idine Ammonium picrate (R) Ammonium vanadate Arsenic acid Arsenic(!!!) oxide Arsenic(V) oxide Arsenic pentoxide Arsenic trioxide Arsine, diethylAziridine Barium cyanide Benzenamine, 4-chloroBenzenamine, 4-nitro141**m.;:~o** 

### P028 P042 P014 P028 POlS P016 P017 P018 P021 Pl23 P103 P022 P022 P095 P033 P023 P024 P026 P027 P029 P030 P031 P033 P036 P037 

# c P038 P039 SUBSTANCE Benzene, (chloromethyl)- l,2-Benzenediol, 4-(1-hydroxy-2-(methylamino)ethyl]- Benzenethiol Benzyl chloride Beryllium dust Bis(chloromethyl) ether Bromoacetone Brucine Calcium cyanide Camphene, octachloroCarbamimidoselenoic acid Carbon bisulfide Carbon disulfide Carbonyl chloride Chlorine cyanide Chloroacetaldehyde p-Chloroaniline 1-(o-Chlorophenyl)thiourea 3-Chloropropionitrile Copper cyanides Cyanides (soluble cyanide salts), not elsewhere specified Cyanogen Cyanogen chloride Dichlorophenylarsine Dieldrin Diethylarsine 0,0-Diethyl S-(2-(ethylthio)ethyl] phosphorodithioate
142HWNO 

### P041 P040 P043 P044 P045
P071 P082 P046 P047 P034 P048 P020 P085 P039 P049 P109 POSO P088 P051 P042 P046 P084 PlOl P054 P097 

# fl P056 SUBSTANCE Diethyl-p-nitrophenyl phosphate 0,0-DiethyJ 0-pyrazinyl phosphorothioate Diisopropyl fluorophosphate Di::ethoate 3,3-Dimethyl-1-(methylthio)-2-butanone, 0-[(methylamino)carbonylJ oxime 0,0-Dimethyl**0-p-nitrophen~~** 

### phosphorothioate Dimethylnitrosamine alpha,alpha-Dimethylphenethylamine 4,6-Dinitro-o-cresol and salts 4,6-Dinitro-o-cyclohexylphenol 2,4-Dinitrophenol Dinoseb Diphosphoramide, octamethylDisulfoton 2,4-Dithiobiuret Dithiopyrophosphoric acid, tetraethyl ester Endosulfan Endothall Endrin Epinephrine Ethanamine, 1,1-dimethyl-2-phenylEthenamine, N-methyl-N-nitrosoEthyl cyanide Ethylenimine Fa::1phur Fluorine


### 143

### H"WNO P057 P0 58 P065 P059 POSl
P037
P060
?004
P060 ?062 Pll6 ?068 P063 P063 P096 P064 P007 P092 P065 P016 Pll2 Pll8 P059
?066 

# t SUBSTANCE 

### Fluoroacetamide Fluoroacetic acid, sodium salt Fulminic acid, mercury(II) salt 

### (R,T) Heptachlor1,2,3,4,10,10-Hexachloro-6,7-epoxy-1,4,4a,5,6,7,8,8a-octahydroendo,endo-1,4:5,8-dimethanonaphthalene1,2,3,4,10,10-Hexachloro-6,7-epoxy-1,4,4a,5,6,7,8,8a-octahydroendo,exo-1,4:5,8-dimethanonaphthalene 1,2,3,4,10,10-Hexachloro-1,4,4a,5,8,8a-hexahydro-1,4:5,8-endo, endo-dimethanonaphthalene 1,2,3,4,10,10-Hexachloro-1,4,4a,5,8,8a-hexahydro-l,4:5,8-endo, exo-dimethanonaphthalene Hexachlorohexahydro-endo,endo-dimethanonaphthalene Hexaethyl tetraphosphate Hydrazinecarbothioamide Hydrazine, methylHydrocyanic acid Hydrogen cyanide Hydrogen phosphide Isocyanic acid, methyl ester 3(2H)-Isoxazolone, 5-(aminomethyl)- Mercury, (acetato-O)phenylMercury fulminate 

### (R,T) Methane, oxybis(chloroMethane, tetranitro- (R) 

### Methanethiol, trichloro4,7-Methano-lH-indene, 1,4,5,6,7,8,8-heptachloro-3a,4,7,.7atetrahydroHethomyl

144

### hw'NO P067 P068 P064 P069 P071 P072 

### P073 P074 P074 P073 P075 P076 P077 P078 P076 P078 P081 P082 P084 POSO
P085 P087 P087 P088 P089 P034 SUBSTANCE 

### 2-Methylaziridine Methyl hydrazine Methyl isocyanate 2-!lethyllactonitrile Methyl parathion alpha-Naphthylthiourea Nickel carbonyl Nickel cyanide Nickel(II) cyanide Nickel tetracarbonyl Nicotine and salts Nitric oxide p-Nitroaniline Nitrogen dioxide Nitrogen(II) oxide Nitrogen(IV) oxide Nitroglycerine (R) N-Nitrosodimethylamine N-Nitrosomethylvinylamine 5-Norbornene-2,3-dimethanol, 1,4,5,6,7,7-hexachloro, cyclic sulfite Octamethylpyrophosphoramide Osmium oxide Osmium tetroxide 7-0xabicyclo[2.2.1Jheptane-2,3-dicarboxylic acid Parathion Phenol, 2-cyclohexyl-4,6-dinitro145HWNO 

### P048 P047 P020 P009 P036 P092 P093 P094 P095 P096 P041 P044
P043 P094 P089 P040 P097 

### PllO P098 P099 P070 P101 P027 P069 P081 P017 SUBSTANCE Phenol, 2,4-dinitroPhenol, 2,4-dinitro-6-methyl-, and salts Phenol, 2,4-dinitro-6-(1-methylpropyl)- Phenol, 2,4,6-trinitro-, ammonium salt (R) Phenyl dichloroarsine Phenylmercuric acetate N-Phenylthiourea Phorate Phosgene Phosphine Phosphoric acid, diethyl p-nitrophenyl ester Phosphorodithioic acid, 0,0-dimethyl S-[2-(methylamino)-2-oxoethyl ester Phosphorofluoridic acid, bis(1-methylethyl) ester Phosphorothioic acid, 0,0-diethyl S-(ethylthio)methyl ester Phosphorothioic acid, 0,0-diethyl 0-(p-nitrophenyl) ester Phosphorothioic acid, 0,0-diethyl 0-pyrazinyl ester Phosphorothioic acid, 0,0-dimethyl 0-[p-((dimethylamino)- sulfonyl)phenyl] ester Plumbane, tetraethylPotassium cyanide

/ 

### Potassium silver cyanide Propanal, 2-methyl-2-(methylthio)-, 0-[(methylamino)carbonyl]oxim, Propanenitrile Propanenitrile, 3-chloroPropanenitrile, 2-hydroxy-2-methyl1,2,3-Propanetriol, trinitrate- (R) 

### 2-Propanone, 1-bromo146H\t.TNO 

### Pl02 P003 

### P005 P067 

### Pl02 P008 P075 

### Plll Pl03 

### Pl04 Pl05 

### Pl06 Pl07 

### Pl08 POlS 

### Pl08 Pll5 Pl09 

### PllO P111 

### Pll2 P062 

### Pll3 P113 

### Pll4 Pll5 SUBSTANCE Propargyl alcohol 2-Propenal 2-Propen-1-ol 1,2-Propylenimine 2-Propyn-1-ol 4-Pyridinamine Pyridine, (S)-3-(1-methyl-2-pyrrolidinyl)-, and salts Pyrophosphoric acid, tetraethyl ester Selenourea Silver cyanide Sodium azide Sodium cyanide Strontium sulfide Strychnidin-10-one, and salts Strychnidin-10-one, 2,3-dimethoxyStrychnine and salts Sulfuric acid, thallium(!) salt Tetraethyldithiopyrophosphate Tetraethyl lead Tetraethylpyrophosphate Tetranitromethane (R) Tetraphosphoric acid, hexaethyl ester Thallic oxide Thallium(III) oxide Thallium(!) selenide Thallium(!) sulfate

147

### P045 P049 P014 Pll6 P026 P072 P093 Pl23 Pll8 Pll9 P120 Pl20 POOl Pl21 Pl22 SUBSTANCE 

### Thiofanox Thioimidodicarbonic diamide Thiophenol Thiosemicarbazide Thiourea, (2-chlorophenyl)- Thiourea, 1-naphthalenylThiourea, phenylToxaphene Trichloromethanethiol Vanadic acid, ammonium salt Vanadium pentoxide Vanadium(V) oxide Warfarin Zinc cyanide Zinc phosphide (R,T)



### 148

### §261.33(e) and (f) 

### updated

- Spelling errors corrected 4/7/81

- Baldev Bathija HAZARDOUS WASTE NO. UOOl U034 Ul87 

## uoos Ull2 0144 U214 

### U002 U003 U004 U005 U006 U007 0008 

### U009 Ul50 UOll U012 0014 

### U015 UOlO

U157 U016 

### SUBSTANCE Acetaldehyde (I) Acetaldehyde, trichloroAcetamide, N-(4-ethoxyphenyl)- Acetamide, N-9H-fluoren-2-ylAcetic acid, ethyl ester (I) Acetic acid, lead salt Acetic acid, thallium(I) salt Acetone 

### (I) Acetonitrile 

### (I,T) Acetophenone 2-Acetylaminofluorene Acetyl chloride (C,R,T) Acrylamide Acrylic acid (I) 

### Acrylonitrile

**Alan~ne,** 

### 3-[p-bis(Z-chloroethyl)amino]phenyl-, L

### Amitrole Aniline (I,T) 

### Auramine Azaserine Azirino(2',3':3,4)pyrrolo(l,2-a)indole-4,7-dione, 6-amino8-[((aminocarbonyl)oxy)methylJ-l,la,2,8,8a,8b-hexahydro8a-methoxy-5-methylBenz[j)aceanthrylene, 1,2-dihydro-3-methylBenz[c]acridine
149

## mmo U016 U017 U018 U018 U094 · U012 U014 U049 U093 Ul58 U222 Ul81 U019 U038
U030 U037 Ul90 U028 U069 U088 Ul02 Ul07 U070 U071 U072 U017 SUBSTANCE 3,4-Benzacr :.dine Benzal chloride Benz[a]anthracene 1,2-Benzanthracene 1,2-Benzanthracene, 7,12-dimethylBenzenamine (I,T) Benzenamine, 4,4'-carbonimidoylbis(N,N-dimethylBenzenamine, 4-chloro-2-methylBenzenamine, N,N-dimethyl-4-phenylazoBenzenamine, 4,4'-methylenebis(2-chloroBenzenamine, 2-methyl-, hydrochloride Benzenamine, 2-methyl-5-nitroBenzene (I,T) Benzeneacetic acid, 4-chloro-alpha-(4-chlorophenyl)- alpha-hydroxy-, ethyl ester Benzene, 1-bromo-4-phenoxyBenzene, chloro1,2-Benzenedicarboxylic acid anhydride 1,2-Benzenedicarboxylic acid, [bis(2-ethylhexyl)] ester 1,2-Benzenedicarboxylic acid, dibutyl ester 1,2-Benzenedicarboxylic acid, diethyl ester 1,2-Benzenedicarboxylic acid, dimethyl ester 1,2-Benzenedicarboxylic acid, di-n-octyl ester Benzene, 1,2-dichloroBenzene, 1,3-dichloroBenzene, 1,4-dichloroBenzene, (dichloromethyl)-

150HWNO 

### U223 U239 U201 Ul27 U056 Ul88 U220 Ul05 U106 U203 

### Ul41 U090 U055 Ul69 

### Ul83 Ul85 U020 U020 U207 0023 U234 U021 U202 Ul20 

### U022 U022 Ul97 SUBSTANCE Benzene, 1,3-diisocyanatomethyl- (R,T) Benzene, dimethyl- (I,T) 1, 3-Benzenediol Benzene, hexachloroBenzene, hexahydro- (I) Benzene, hydroxyBenzene, methylBenzene, 1-methyl-2,4-dinitroBenzene, 1-methyl-2,6-dinitroBenzene, 1,2-methylenedioxy-4-allyl- ·Benzene, 1, 2-methy1enedioxy-4-propenylBenzene, 1,2-methylenedioxy-4-propylBenzene, (1-methylethyl)- (I) Benzene, nitro- (I,T) Benzene, pentach1oroBenzene, pentachloronitroBenzenesulfonic acid chloride (C,R) Benzenesulfonyl chloride (C,R) Benzene, 1,2,4,5-tetrachloroBenzene, (trichloromethyl)- (C,R,T) Benzene, 1,3,5-trinitro- (R,T) Benzidine 1 2-Benzisothiazolin-3-one, 1,1-dioxide, and salts



## ' Benzo[j,k]fluorene Benzo[a]pyrene 3,4-Benzopyrene p-Benzoquinone
151

### D023 \.:)50 

### C085 1:021 V073 V09l 

### U095 C024 U027 !:244 C028 U246 U225 C030 t:l28 U172 U035 U031 Ul59 Ul60 U053 U074 U031 Ul36 U032 U238 SUBSTANCE Benzotrichloride (C,R,T) 1,2-Benzphenanthrene 2,2'-Bioxirane 

### (I,T) (1,1'-Biphenyl)-4,4'-diamine (1,1'-Biphenyl)-4,4'-diamine, 3,3'-dichloro- (1,1'-Biphenyl)-4,4'-diamine, 3,3'-dimethoxy- (1,1'-Biphenyl)-4,4'-diamine, 3,3'-diroethylBis(Z-chloroethoxy) methane Bis(2-chloroisopropyl) ether**Bis(dimethylthiocarba~oyl)** 

### disulfide Bis(2-ethylhexyl) phthalate Bromine cyanide Bromoform 4-Bromophenyl phenyl ether 1,3-Butadiene, 1,1,2,3,4,4-hexachloro1-Butanamine, N-butyl-N-nitrosoButanoic acid,**4-[bis(2-chloroethyl)amino]b~nzene** 

### l-Butanol (I) 2-Butanone 

### (I,T) 2-Butanone peroxide 

### (R,T) 2-Butenal 2-Butene, 1,4-dichloro- 

### (I,T) n-Butyl alcohol (I) 

### Cacodylic acid Calcium chromate Carbamic acid, ethyl ester

152HW!\0 

### Uli8 Uli6 Uli7 

### U219 U097 

### U215 Ul56 U033 U211 U033 U034 U035 U036 U026 U037 U039 U041 

### U042 U044 U046 

### U047 U048 

### U049 U032 U050 U051 SUBSTANCE Carbamic acid, methylnitroso-, ethyl ester Carbamide, N-ethyl-N-nitrr soCarbamide, N-methyl-N-nitrosoCarbamide, thioCarbamoyl chloride, dimethylCarbonic acid, dithallium(I) salt Carbonochloridic acid, methyl ester (I,T) Carbon oxyfluoride (R,T) Carbon tetrachloride Carbonyl fluoride (R,T) Chloral Chlorambucil Chlordane, technical Chlornaphazine Chlorobenzene 4-Chloro-m-cresol 1-Chloro-2,3-epoxypropane 2-Chloroethyl vinyl ether Chloroform Chloromethyl methyl ether beta-Chloronaphthalene o-Chlorophenol 4-Chloro-o-toluidine, hydrochloride Chromic acid, calcium salt Chrysene Creosote



### 153HWNO U052 U052 

### U053 

## uoss U246 Ul97 U056 U057 U130 U058 

### U240 U059 U060 U061 Ul42
U062 Ul33 U221 U063 U063 U064 U064 U066 U069 U062 t:070 SUBSTANCE Cresols Cresylic**a~".id** 

### Crotonaldehyde Cumene (I) Cyanogen bromide 1,4-Cyclohexadienedione Cyc1ohexane (I) 

### Cyclohexanone 

### (I) 1,3-Cyclopentadiene, 1,2,3,4,5,5-hexachloroCyclophosphamide 2,4-D, salts and esters Daunomycin DDD DDT Decachlorooctahydro-1,3,4-metheno-2H-cyclobuta[c,d]- pentalen-2-one Diallate Diamine 

### (R,T) Diaminotoluene Dibenz[a,h]anthracene 1,2:5,6-Dibenzanthracene 1,2:7,8-Dibenzopyrene Dibenz[a,i]pyrene 1,2-Dibromo-3-chloropropane Dibutyl phthalate S-(2,3-Dichloroallyl) diisopropylthiocarbamate a-Dichlorobenzene

154HWNO 

### U071 U072 U073 U074 U075 Ul92 U060 U061 U078 U079 U025 0081 U082 U240 

### U083 U084 U085 Ul08 U086 U087 U088 U089 Ul48 U090 U091 U092 SUBSTANCE m-Dichlorobenzene p-Dichlorobenzene 3,3'-Dichlorobenzidine 1,4-Dichloro-2-butene (I,T) Dichlorodifluoromethane 3,5-Dichloro-N-(1,1-dimethyl-2-propynyl)benzamide Dichloro diphenyl dichloroethane Dichloro diphenyl trichloroethane 1,1-Dichloroethylene 1,2-Dichloroethylene Dichloroethyl ether 2,4-Dichlorophenol 2,6-Dichlorophenol 2,4-Dichlorophenoxyacetic acid, salts and esters 1,2-Dichloropropane 1,3-Dichloropropene 1,2:3,4-Diepoxybutane (I,T) 1,4-Diethylene dioxide N,N-Diethylhydrazine 0,0-Diethyl-S-methyl-dithiophosphate Diethyl phthalate Diethylstilbestrol 1,2-Dihydro-3,6-pyridazinedione Dihydrosafrole

**3,3'-D~ethoxybenzidine** 

### Dimethylamine 

### (I)

155HWNO 

### U093 U094 U095 U096 U097 U098 U099 U101 U102 Ul03 U105 U106 U107 U108 U109 

### UllO Ulll 

### UOOl Ul74 U067 U076 U077 

### Ull4 U131 U024 U003 SUBSTANCE Dimethylaminoazobenzene 7,12-Dimethylbenz[a]anthrrcene**3,3'-DL~ethylbenzidine** 

### alpha,alpha-Dimethylbenzylhydroperoxide (R) Dimethylcarbamoyl chloride 1,1-Dimethylhydrazine 1,2-Dimethylhydrazine 2,4-Dimethylphenol Dimethyl phthalate Dicethyl sulfate 2,4-Dinitrotoluene 2,6-Dinitrotoluene Di-n-octyl phthalate 1,4-Dioxane 1,2-Diphenylhydrazine Dipropylamine (I) 

### Di-n-propylnitrosamine Ethanal (I) 

### Ethanamine, N-ethyl-N-nitrosoEthane, 1,2-dibromoEthane, 1,1-dichloroEthane, 1,2-dichloro1,2-Ethanediylbiscarbamodithioic acid Ethane, 1,1,1,2,2,2-hexachloroEthane, 1,1'-[methylenebis(oxy)Jbis[2-chloroEthanenitrile 

### (I,T)

156HWNO 

### Ull7 U025 U184 U208 U209 U218 

### U227 U247 U043 U042 U078 U079 U210 U173 U004 U006 Ull2 Ull3 U238 U038 

### Ull4 U067 U077 

### Ull5 Ull6 U117 SUBSTANCE Ethane, 1,1'-oxybis- (I) Ethane, 1,1'-oxybis[2-chloroEthane, pentachloroEthane, 1,1,1,2-tetrachloroEthane, 1,1,2,2-tetrachloroEthanethioamide Ethane, 1,1,2-trichloroEthane, 1,1,1-trichloro-2,2-bis(p-methoxyphenyl)- Ethene, chloroEthene, 2-chloroethoxyEthene, 1,1-dichloroEthene, trans-1,2-dichloroEthene, 1,1,2,2-tetrachloroEthanol, 2,2'-(nitrosoimino)bisEthanone, 1-phenylEthanoyl chloride (C,R,T) Ethyl acetate (I) Ethyl acrylate (I) Ethyl carbamate (urethan) Ethyl 4,4'-dichlorobenzilate Ethylenebis(dithiocarbamic acid), salts and esters Ethylene dibromide Ethylene dichloride Ethylene oxide (I,T) Ethylene thiourea Ethyl ether (I)

157

### mmo U076 Ull8 Ull9 Ul39 U120 Ul22 Ul23 Ul24 

### Ul25 Ul47 U213 

### Ul25 Ul24 ti206 Ul26 

### Ul63 Ul27 Ul28 Ul29 

### Ul30 Ul31 Ul32 

### U243 Ul33 

### U086 U098 SUBSTANCE Ethylidene dichloride Ethyl methacrylate Ethyl methanesulfonate Ferric dextran Fluoranthene Formaldehyde Formic acid (C,T} Furan (I) 

### 2-Furancarboxaldehyde (I} 

### 2,5-Furandione Furan, tetrahydro- 

### (I} Furfural (I} 

### Furfuran (I) 

### D-Glucopyranose, 2-deoxy-2-(3-methyl-3-nitrosoureido)- Glycidylaldehyde Guanidine, N-nitroso-N-methyl-N'-nitroHexachlorobenzene Hexachlorobutadiene Hexachlorocyclohexane (gamma isomer) Hexachlorocyclopentadiene Hexachloroethane Hexachlorophene Rexachloropropene Hydrazine 

### (R,T} Hydrazine, 1,2-diethylHydrazine, 1,1-dimethyl158HWNO 

### U099 Ul09 Ul34 Ul34 

### Ul35 U096 Ul36 Ull6 

### Ul37 Ul39 Ul40 Ul41 Ul42 

### Ul43 Ul44 Ul45 

### U146 Ul29 

### U147 Ul48 Ul49 

### Ul50 Ul51 

### Ul52 U092 U029 SUBSTANCE liydrazine, 1,2-dimethylEydrazine, 1,2-diphenylEydrofluoric acid (C,T) Hydrogen fluoride (C,T) Hydrogen sulfide Rydroperoxide, 1-methyl-1-phenylethyl- (R) Hydroxydimethylarsine oxide 2-Imidazolidinethione Indeno[1,2,3-cd)pyrene Iron dextran Isobutyl alcohol (I,T) Isosafrole Kepone Lasiocarpine Lead acetate Lead phosphate Lead subacetate Lindane

**~aleic** 

### anhydride Maleic hydrazide Halononitrile Helphalan Mercury Hethacrylonitrile (I,T) Xethanamine, N-methyl- (I) :!ethane, bromo

### 159HWNO 

### U045 U046 U068 U080 U075 Ul38 

### Ull9 U2ll Ul53 U225 U044 

### Ul21 Ul23 U036 Ul54 Ul55 U247 Ul54 

### U029 Ul86 U045 Ul56 

### U226 Ul57 Ul58 

### Ul32 U068 SUBSTANCE Methane, chloro- 

### (I,T)**~ethane,** 

### chloromethoxyMethane, dibromoMethane, dichloroMethane, dichlorodifluoroMethane, iodoMethanesulfonic acid, ethyl ester Methane,**tetrachloro~** 

### Methanethiol 

### (I,T) Methane, tribromoMethane, trichloroMethane, trichlorofluoroMethanoic acid (C,T) 4, 

### 7-)fethanoindan, 1, 2, 4, 5, 6, 

### 7, 8, 

### 8-octachloro-3a,4, 

### 7, 7a-tetrahydroMethanol (I) 

### Methapyrilene Methoxychlor Methyl alcohol 

### (I) Methyl bromide 1-Methylbutadiene 

### (I) Methyl chloride 

### (I,T) Methyl chlorocarbonate 

### (I,T) Methyl chloroform 3-Methylcholanthrene 4,4'-Methylenebis(2-chloroaniline) 2,2'-Methylenebis(3,4,6-trichlorophenol) Methylene bromide 

### 160HWNO 

### U080 Ul22 Ul59 Ul60 

### Ul38 Ul61 Ul62 Ul63 Ul61 U164 U010 U059

Ul65 U047 U166 

### U236

U166 Ul67 I 

### Ul68 Ul67 

### Ul68 U026 

### Ul69 Ul70 

### Ul71 **SUBSTA...~CE** 

### Methylene chloride Hethylene oxide Methyl ethyl ketone (I,T) Methyl ethyl ketone peroxide 

### (R,T) Methyl iodide Methyl isobutyl ketone 

### (I) Methyl methacrylate 

### (I,T) N-Methyl-N'-nitro-N-nitrosoguanidine 4-Methyl-2-pentanone 

### (I) Methylthiouracil Mitomycin C 

### 5,12-Naphthacenedione, (8S-cis)-8-acety1-10-[(3-amino2,3,6-trideoxy-alpha-L-lyxo-hexopyranosyl)oxyl)-7,8,9,10-tetrahydro-6,8,11-trihydroxy-1-methoxyNaphthalene Naphthalene, 2-chloro1,4-Naphtha1enedione 2,7-Naphthalenedisulfonic acid, 3,3'-[(3,3'-dimethyl- (l,l'-biphenyl)-4,4'diyl)]-bis (azo)bis(S-amino-4-hydroxy)-, tetrasodium salt 1,4-Naphthoquinone 1-Naphthylamine 2-Naphthylamine alpha-Naphthylamine beta-Naphthylamine

**2~Naphthylamine,** 

### N,N-bis(2-chloroethyl)- Nitrobenzene 

### (I,T) p-Nitrophenol 2-Nitropropane (I)


### 161HWNO 

### Ul72 Ul73 Ul74 Ulll Ul76 Ul77 Ul78 Ul79 Ul80 Ul81 Ul93 U058 Ul15 U041 Ul82 Ul83 Ul84 Ul85 U242 Ul86 Ul87 Ul88 U048 U039 U081 U082**SUBSTAI.~CE** 

### N-Nitrosodi-n-butylamine N-Nitrosodiethanolamine N-Nitrosodiethylamine N-Nitrosodi-n-propylamine N-Nitroso-N-ethylurea N-Nitroso-N-methylurea N-Nitroso-N-methylurethane N-Nitrosopiperidine N-Nitrosopyrrolidine 5-Nitro-o-toluidine 1,2-0xathiolane, 2,2-dioxide 2H-1,3,2-0xazaphosphorine, 2-[bis(2-chloroethyl)amino]tetrahydro-, 2-oxide Oxirane (I,T) Oxirane, 2-(chloromethyl)- Paraldehyde Pentachlorobenzene Pentachloroethane Pentachloronitrobenzene Pentachlorophenol 1,3-Pentadiene (I) 

### Phenacetin Phenol Phenol, 2-chloroPhenol, 4-chloro-3-methylPhenol, 2,4-dichloroPhenol, 2,6-dichloro162**H~'NO** 

### UlOl Ul70 U242 U212 U230 U231 Ul37 U145 U087 

### Ul89 0190 Ul91 Ul92 

### Ul94 

### UllO 0066 

### 0149 Ul7l U027 

### U193 U235 Ul26 Ul40 U002 U007 U084 

### U243 SUBSTANCE Phenol, 2,4-dimethylPhenol, 4-nitroPhenol, pentachloroPhenol, 2,3,4,6-tetrachloroPhenol, 2,4,5-trichloroPhenol, 2,4,6-trichloro**1,10-(1,~-Phenylene)pyrene** 

### Phosphoric acid, lead salt Phosphorodithioic acid, 0,0-diethyl S-methyl ester Phosphorous sulfide (R) Phthalic anhydride 2-Picoline Pronamide 1-Propanamine (I,T) 1-Propanamine, N-propyl- (I) Propane, 1,2-dibromo-3-chloro- ·Propanedinitrile

Propane, 2-nitro- (I) Propane, 2,2'-oxybis[2-chloro1,3-Propane sultone 1-Propanol, 2,3-dibromo-, phosphate (3:1) 1-Propanal, 2,3-epoxy1-Propanol, 2-methyl- (I,T) 2-Propanone (I) 2-Propenamide Propene, 1,3-dichloro1-Propene, 1,1,2,3,3,3-hexachloro163HWNO 

### U009 Ul52 U008 

### Ull3 Ull8 Ul62 U233 Ul94 

### U083 Ul96 Ul55 Ul79 Ul91 Ul64 

### Ul80 U200 U201 U202 U203 U204 U204 U205 U015 U233 

### U089 U206 SUBSTANCE 2-Propenenitrile 2-Propenenftrile, 2-methyl- (I,T) 2-Propenoic acid (I) 2-Propenoic acid, ethyl ester 

### (I) 2-Propenoic acid, 2-methyl-, ethyl ester 2-Propenoic acid, 2-methyl-, methyl ester (I,T) Propionic acid, 2-(2,4,5-trichlorophenoxy)- n-Propylamine 

### (I,T) Propylene dichloride Pyridine Pyridine, 2-[(2-(dimethylamino)ethyl)-2-thenylamino]- Pyridine, hexahydro-N-nitrosoPyridine, 2-methyl4(1H)-Pyrimidinone, 2,3-dihydro-6-methyl-2-thioxoPyrrole, tetrahydro-N-nitrosoReserpine Resorcinol Saccharin and salts Safrole Selenious acid Selenium dioxide Selenium disulfide (R,T) L-Serine, diazoacetate (ester) Silvex 4,4'-Stilbenediol, alpha,alpha'-diethylStreptozotocin

164HWNO 

# -

**SUBST&~CE** 

### Ul35 Sulfur hydride Ul03 Sulfuric acid, dimethyl ester Ul89 Sulfur phosphide (R) U205 Sulfur selenide (R,T) U232 2, 4, 5-T U207 1,2,4,5-Tetrachlorobenzene U208 1,1,1,2-Tetrachloroethane U209 1,1,2,2-Tetrachloroethane U210 Tetrachloroethylene U212 2,3,4,6-Tetrachlorophenol U213 Tetrahydrofuran (I) 

### U214 Thallium(!) acetate U215 Thallium(!) carbonate U216 Thallium(!) chloride U217 Thallium(!) nitrate U218 Thioacetamide Ul53 Thiomethanol (I,T) U219 Thiourea U244 Thiram U220 Toluene U221 Toluenediamine U223 Toluene diisocyanate (R,T) U222 o-Toluidine hydrochloride UOll 

### 1H-1,2,4-Triazol-3-amine U226 1,1,1-Trichloroethane U227 1,1,2-Trichloroethane

165H'W'NO 

### U228 G228 Ul21 U230 U231 U232 U234 Ul82 U235 U236 U237 U237 U043 U239 U200 SUBSTANCE Trichloroethene Trichloroethylene Trichloromonofluoromethane 2,4,5-Trichlorophenol 2,4,6-Trichlorophenol 2,4,5-Trichlorophenoxyacetic acid sym-Trinitrobenzene (R,T) 1,3,5-Trioxane, 2,4,6-trimethylTris(2,3-dibromopropyl) phosphate Trypan blue Uracil, 5-[bis(2-chloroethyl)amino]- Uracil mustard Vinyl chloride Xylene (I) Yohimban-16-carboxylic acid, 11,17-dimethoxy-18- [(3,4,5-trimethoxy-benzoyl)oxy]-, methyl ester



### 166