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PICK-UPDATE: 3/8/2007 

BOX 10 OF 10 

Step 2: FOR ASRC INTERNAL USE 

ONLY 

(PART A of B) 

EPA DOCKET ID: 102RQ-RN 

1) INDEX 

3) 102RQ-RN-1-2 

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9) 102RQ-RN-3-1 

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35) 102RQ-RN-4-6 

37) 102RQ-RN-4-8 

39) 102RQ-RN-5-1 

Step 3: FOR ASRC INTERNAL USE 

ONLY 

CD: 

OA: / 

2) 102RQ-RN-1-1 

4>-rlT52RQ-RN-l3> 

6) 102RQ-RN-1-5 

8) 102RQ-RN-1-7 

10) 102RQ-RN-3-2 

12) 102RQ-RN-2-1-1 

14) 102RQ-RN-2-1-3 

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20) 102RQ-RN-2-4-1 

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34) 102RQ-RN-4-5 

36) 102RQ-RN-4-7 

38) 102RQ-RN-4-9 

40) 102RQ-RN-5-2 

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Internal SFUND Box Number 35 OF 283 

Initials/Date: LDS / 3-8-2007 
P.2 

/02#Q-*#~/-2 

__• m rn 

Monday 

September 29, 1986 

Part II 

Environmental 

Protection Agency 

40 CFR Parts 117 and 302 

Superfund Programs; Reportable Quantity 

Adjustments; Final Rule 
34534 Federal Register / Vol. 51, No. 188 / Monday, September 29, 1986 / Rules and Regulations 

.V-^_HM_«H_B_N_l_H_H_HH_a_B_V_M_a_a_a_M_^_M_M_^_^_a_M_^_H_^_BM_a_M^^ 

P.3 

ENVIRONMENTAL PROTECTION 

AGENCY 

40 CFR Parts 117 and 302 

[SW H-FRL 3032-9] 

Superfund Programs; Reportable 

Quantity Adjustments 

AGENCY: U.S. Environmental Protection 

Agency (EPA). 

ACTION: Final rule. 

SUMMARY: Sections 103(a) and 103(b) of 

the Comprehensive Environmental 

Response, Compensation, and Liability 

Act of 1980 ("CERCLA") require that 

persons in charge of vessels or facilities 

from which hazardous substances have 

been released in quantities that are 

equal to or greater than the reportable 

quantities ("RQs") immediately notify 

the National Response Center ("NRC") 

of the release. Section 102(b) of CERCLA 

establishes RQs for releases of 

designated hazardous substances at one 

pound, unless other reportable 

quantities were established pursuant to 

section 311(b)(4) of the Clean Water Act 

("CWA"). 

Section 102(a) authorizes the 

Administrator of the U.S. Environmental 

Protection Agency ("EPA") to adjust 

these RQs, and to designate as 

hazardous substances, substances 

which when released into the 

environment may present substantial 

danger to the public health or welfare or 

the environment. A final rule published 

on April 4,1985 (50 FR 13456) adjusted 

RQs for 340 hazardous substances. In a 

Notice of Proposed Rulemaking 

("NPRM") also published on April 4, 

1985, the Agency proposed adjusted RQs 

for 105 additional hazardous substances 

(50 FR 13514). This rule finalizes the RQ 

adjustments proposed in the April 4, 

1985 NPRM.1 By making these 

adjustments, the Agency will be able to 

focus its resources on those releases 

which are most likely to pose potential 

threats to public health, welfare, and the 

environment. In addition, these 

adjustments will relieve the regulated 

community of the burden of reporting 

releases which are unlikely to pose such 

threats. Today's rule adjusts not only 

the statutory one-pound RQs, but also 

the RQs established pursuant to section 

311(b)(4) of the CWA. 

1

 The Agency has decided to retain the statutory 

one-pound RQs for lead, pentachloroethane. and 

methyl chloride, pending analysis of their potential 

carcinogenicity. Therefore, today's rule adjusts RQs 

for 102 of the 105 hazardous substances for which 

the April 4 1985 NPRM proposed adjusted RQs. For 

further discussion of this issue, see Section Hl.C. of 

this preamble. 

When there is a release of a 

hazardous substance in a quantity equal 

to or greater than its RQ as listed in 40 

CFR 302.4 (as amended by today's final 

rule), the person in charge of the vessel 

or facility must immediately notify the 

NRC. The toll-free number of the NRC is 

listed below under "ADDRESSES." 

EFFECTIVE DATE: December 29,1986. 

ADDRESSES: The toll-free telephone 

number of the National Response Center 

is 1-800/424-8802; in the Washington, 

DC metropolitan area, the number is 1-

202/426-2675. 

Docket 

Copies of materials relevant to this 

rulemaking are contained in Room LG at 

the U.S. Environmental Protection 

Agency, 401 M Street, SW, Washington, 

DC 20460. The docket is available for 

inspection between the hours of 8:00 

a.m. and 4:00 p.m., Monday through 

Friday. As provided in 40 CFR Part 2, a 

reasonable fee may be charged for 

copying services. 

FOR FURTHER INFORMATION CONTACT: 

Dr. K. Jack Kooyoomjian, Senior Project 

Officer, Response Standards and 

Criteria Branch, Emergency Response 

Division (WH-548B), U. S. 

Environmental Protection Agency, 401 M 

Street, SW, Washington, DC 20460, or 

the RCRA/Superfund Hotline at 1-800/ 

424-9346, in Washington, DC, at 1-202/ 

382-3000. 

SUPPLEMENTARY INFORMATION: The 

contents of today's preamble are listed 

in the following outline: 

I. Introduction 

A. Statutory Authority 

B. Background of This Rulemaking 

II. Key Issues Not Addressed in This Rule 

A. Continuous Releases 

B. Federally Permitted Releases 

C. Radionuclide RQs 

D. Potential Carcinogen RQs 

III. Reportable Quantity Adjustments 

A. Introduction 

B. Summary of the Methodology 

Underlying the Reportable Quantity 

Adjustments 

C. Substances for Which RQs Are Adjusted 

D. ICR Substances 

IV. Reportable Quantity Adjustments Under 

Section 311 of the Clean Water Act 

V. Summary of Supporting Analyses 

I. Introduction 

A. Statutory Authority 

The Comprehensive Environmental 

Response, Compensation, and Liability 

Act of 1980 (Pub. L. 96-510), 42 U.S.C. 

9601 et seq. ("Superfund," "CERCLA," or 

"the Act"), enacted on December 11, 

1980, establishes broad federal authority 

to deal with releases or threats of 

releases of hazardous substances from 

vessels and facilities. The Act defines a 

set of "hazardous substances" chiefly by 

reference to other environmental 

statutes (see section 101(14)); currently, 

there are 717 CERCLA hazardous 

substances. The Administrator of the 

U.S. Environmental Protection Agency 

("EPA") may designate additional 

hazardous substances pursuant to 

section 102 of CERCLA. 

The Act requires that the person in 

charge of a vessel or facility 

immediately notify the National 

Response Center ("NRC") as soon as 

that person has knowledge of a release 

of a hazardous substance in an amount 

equal to or greater than the reportable 

quantity ("RQ") for that substance 

(sections 103 (a) and (b)).2 In certain 

limited situations, when direct reporting 

to the NRC is not practicable, the 

releaser may report to the nearest Coast 

Guard- or EPA-predesignated On-Scene 

Coordinator ("OSC"). If it is not possible 

to notify the NRC or predesignated OSC 

immediately, reports may be made 

immediately to the nearest Coast Guard 

unit, provided that the releaser notifies 

the NRC as soon as possible (40 CFR 

300.63(b)). Section 102(b) of CERCLA 

establishes RQs for releases of 

designated hazardous substances at one 

pound, unless other reportable 

quantities were assigned under section 

311 of the Clean Water Act ("CWA"). 

Section 102(a) authorizes EPA to adjust 

all of these reportable quantities by 

regulation. 

A major purpose of the section 103(a) 

and (b) notification requirements is to 

alert the appropriate government 

officials to releases of hazardous 

substances that may require a federal 

response action to protect public health 

and welfare and the environment. Under 

CERCLA section 104, the federal 

government may respond whenever 

there is a release or a substantial threat 

of a release into the environment of a 

hazardous substance. Response 

activities are to be taken, to the extent 

practicable, in accordance with the 

National Contingency Plan (40 CFR Part 

300), which was originally developed 

under the CWA, and which has been 

revised pursuant to section 105 to reflect 

the responsibilities and authority 

created by CERCLA. EPA emphasizes 

that a hazardous substance release 

notification is merely a trigger for 

informing the government of a release su 

2

 A release into the environment of a substance 

which is not listed as a CERCIA hazardous 

substance but which rapidly forms a CERCLA 

hazardous substance upon release, is subject to the 

notification requirements of section 103. If the 

amount of the hazardous substance formed as such 

a reaction product equals or exceeds the RQ for that 

substance, the release must be reported to Ihe NRC. 
P.4 

Federal Register / Vol. 51, No. 188 / Monday, September 29, 1986 / Rules and Regulations 34535 

that the need for a federal removal or 

remedial action can be evaluated by the 

appropriate federal personnel and any 

necessary action undertaken in a timely 

fashion. Federal personnel will evaluate 

all reported releases, but will not 

necessarily initiate a removal or 

remedial action in response to all 

reported releases, because the release of 

a reportable quantity of a hazardous 

substance will not necessarily pose a 

hazard to public health or welfare or the 

environment. 

Section 103(b) authorizes penalties, 

including criminal sanctions, for persons 

in charge of vessels or facilities who fail 

to report releases of hazardous 

substances which equal or exceed 

reportable quantities. Any person in 

charge of a vessel or facility who, as 

soon as that person has knowledge of a 

reportable release, fails to report the 

release pursuant to section 103(a) or (b) 

shall, upon conviction, be fined no more 

than $10,000 or imprisoned for not more 

than one year, or both. Notifications 

received under section 103(a) or 

information obtained by such notice 

cannot be used against any reporting 

person in any criminal case, except a 

prosecution for perjury or for giving a 

false statement. 

B. Background of this Rulemaking 

On May 25,1983, EPA proposed a rule 

(48 FR 23552) to clarify procedures for 

reporting releases of CERCLA 

hazardous substances and to adjust 

reportable quantities for 387 of the then 

696 CERCLA hazardous substances.3 

The May 25,1983 NPRM also listed, for 

the first time, the "hazardous 

substances" identified under section 

101(14) of CERCLA. In the NPRM, EPA 

discussed in detail the CERCLA 

notification provisions (including the 

persons required to notify the NRC of a 

release, the hazardous substances for 

which notification is required, the types 

3

 Since the May 25,1983 NPRM. 21 additional 

hazardous substances have been identified 

pursuant to listings under RCRA and the CAA: 

Waste stream F024 under section 3001 of the 

Resource Conservation and Recovery Act (RCRA) 

(49 FR 5308); coke oven emissions under section 112 

of the Clean Air Act (CAA) (49 FR 36500): waste 

streams F020, F021. F022, F023, F026. F027, and F028 

under section 3001 of RCRA (50 FR 1978): waste 

streams Kill, K112. K.113, K114. K115. and K116 

under section 3001 of RCRA (50 FR 42936); otoluidine and p-toluidine under section 3001 of 

RCRA (50 FR 42936); waste streams K117, K118. and 

K136 under section 3001 of RCRA (51 FR 5327); and 

2-ethoxyethanol under section 3001 of RCRA (51 FR 

6537). None of the above-listed substances, with the 

exception of two (waste stream F024 and coke oven 

emissions), have been previously listed in Table 

302.4. These 19 substances are therefore listed in the 

table in today's rule. The RQs for these substances, 

however, are not adjusted by today's rule and will 

retain their statutory one-pound RQs until adjusted 

in future rulemakings. 

of releases subject to the notification 

requirements, and the exemptions from 

these requirements), the methodology 

and criteria used to adjust the RQ levels, 

and the RQ adjustments proposed under 

section 102 of CERCLA and under 

section 311 of the CWIA: On April 4, 

1985, EPA promulgated a final rule (50 

FR 13456), that clarified reporting 

procedures and finalized RQ 

adjustments for 340 hazardous 

substances, including 21 waste streams. 

The April 4,1985 Federal Register also 

contained an NPRM proposing RQ 

adjustments for 105 additional CERCLA 

hazardous substances, including seven 

waste streams (50 FR 13514). In addition, 

the April 4,1985 NPRM clarified 

reporting requirements for substances 

exhibiting the RCRA characteristics of 

ignitability, corrosivity, and reactivity 

("ICR") (40 CFR 261.21-261.23).* The 

adjusted RQ for ICR substances, 

discussed below in Section III.D., 

becomes effective with today's rule. In 

preparing today's final rule, the Agency 

has considered carefully the comments 

received in response to the April 4,1985 

NPRM. 

In finalizing these RQ adjustments, 

today's rule amends Table 302.4 of 40 

CFR 302.4 and, consistent with 40 CFR 

117.3, applies not only to CERCLA RQs, 

but also to the RQs established for 

hazardous substances under section 

311(b)(4) of the CWA. Both Table 302.4 

and Table 117.3 are revised and 

published as a part of this rule. Section 

II of this preamble discusses key issues 

relating to RQ adjustments and CERCLA 

notification requirements that are not 

resolved in today's final rule. Section LU 

discusses the RQ adjustments and the 

methodology used in making these 

adjustments. Section IV addresses RQ 

adjustments under section 311 of the 

Clean Water Act. Section V provides a 

summary of the analyses supporting this 

rule. 

It is important to note that other 

provisions of CERCLA may apply even 

where the statute does not require 

notification. Therefore, nothing in this 

rulemaking should be interpreted as 

reflecting Agency policy or the 

applicable law with respect to other 

provisions of the Act. For example, a 

party responsible for a release (except 

federally permitted releases and 

specifically exempted substances or 

entities), is liable for the costs of 

cleaning up that release and for any 

natural resource damages caused by the 

4

 Substances exhibiting the characteristic of 

extraction procedure (EP) toxicity were not at issue 

because the chemicals for which the EP toxicity test 

is designed are all assigned specific RQs under 40 

CFR 302.4. 

release, even if the release is not subject 

to the notification requirements of 

sections 103 (a) and (b). Similarly, 

proper reporting of a release in 

accordance with sections 103 (a) and (b) 

does not preclude liability for cleanup 

costs. The fact that a release of a 

hazardous substance is properly 

reported or that it is not subject to the 

notification requirements of sections 

103(a) and (b) will not prevent EPA or 

other government agencies from taking 

response actions under section 104, 

seeking reimbursement from responsible 

parties under section 107, or pursuing an 

enforcement action against responsible 

parties under section 106. Note also that 

this rule does not affect hazardous 

substance reporting requirements 

imposed by other regulations and 

statutes (except the CWA—see Section 

IV below). 

Neither today's final rule nor the April 

4,1985 final rule addresses the 

designation of hazardous substances 

which are not designated under the 

statutes listed in CERCLA section 

101(14). The Agency has conducted 

several preliminary economic and 

technical analyses on this subject (see 

48 FR 23603), and in an Advance Notice 

of Proposed Rulemaking (ANPRM), also 

published on May 25,1983, invited 

public comment. EPA has carefully 

reviewed the comments received. The 

Agency's designation policy may be the 

subject of a future rulemaking. 

II. Key Issues Not Addressed in this 

Rule 

A. Continuous Releases 

Under sections 103 (a) and (b) of 

CERCLA, no distinction is made 

between episodic and continuous 

releases. Section 103(f)(2), however, 

provides reduced reporting requ.rements 

for certain "continuous" releases. 

Releases may be reported less 

frequently than under sections 103 (a) 

and (b) if they are "continuous," "stable 

in quantity and rate," and notification 

has been given under sections 103 (a) 

and (b) "for a period sufficient to 

establish the continuity, quantity, and 

regularity" of the release. Notification 

must still be given "annually, or at such 

time as there is any statistically 

significant increase" in the quantity of 

the hazardous substance being released. 

Thus, instead of reporting every release 

as it occurs, certain continuous releases 

may be reported less often. 

In the May 25,1983 proposal, EPA 

noted that enforcement efforts would be 

focused on episodic rather than 

continuous releases. The Agency 

presented alternative interpretations of 
P.5 

34536 Federal Register / Vol. 51, No. 188 / Monday, September 29, 1986 / Rules and Regulations 

which releases could be included within 

the continuous release definition, and 

discussed a possible notification scheme 

for releases determined to be within the 

definition. 

The Agency received more than 40 

comments in response to the discussion 

of continuous releases in the May 25, 

1983 NPRM. EPA is in the process of 

developing continuous release reporting 

regulations to clarify this reduced 

reporting requirement. 

Although the continuous release 

reporting issue was not within the scope 

of the April 4,1985 NPRM, the Agency 

received one additional comment on this 

issue. The commenter argued that 

because the scope of the definition for 

continuous releases relates directly to 

whether certain RQs are appropriate, 

the comment period for RQ adjustments 

in the April 4,1985 NPRM should be 

reopened when the continuous release 

reporting issue is finally resolved. EPA 

has rejected this argument, however, 

because the Agency considers the issues 

of appropriate RQ levels and the scope 

of the reduced reporting requirement for 

continuous releases to be unrelated. 

Whether a given release qualifies as 

"continuous" has no bearing on the 

appropriate RQ for a hazardous 

substance determined according to a 

specific set of scientific criteria. 

B. Federally Permitted Releases 

One of the exemptions from section 

103(a) reporting requirements is for 

"federally permitted releases." The 

definition of "federally permitted 

release" in CERCLA section 101(10) 

specifically identifies releases permitted 

under certain other state or federal 

programs. 

In the May 25,1983 NPRM, EPA 

explained its interpretation of each type 

of release exempted by the definition of 

"federally permitted release." The 

Agency received many comments on the 

scope of the federally permitted release 

exemption, most of which urged a broad 

interpretation of one or more of the 

federally permitted releases. Due to the 

complexity of the issues involved, the 

Agency decided to examine further the 

scope of the federally permitted release 

exemption. 

Although the April 4,1985 NPRM did 

not address the issue of federally 

permitted releases, we received a 

comment on this issue which was 

analogous to the comment received on 

continuous releases. The commenter 

argued that the comment period for RQ 

adjustments proposed in the April 4, 

1985 NPRM should be reopened when 

he issue of federally permitted releases 

is finally resolved. The Agency has 

ejected this argument for the same 

reason it rejected the commenter's 

argument as it applied to continuous 

releases. Whether the release of a 

hazardous substance that exceeds an 

RQ will, under certain prescribed 

circumstances, be exempt from reporting 

requirements because it is "federally 

permitted," has no bearing on the 

objective determination of the 

appropriate RQ level for the substance. 

The Agency is evaluating the federally 

permitted release definition and intends 

to address the issue in a future 

rulemaking. 

C. Radionuclide RQs 

Radionuclides are hazardous 

substances under CERCLA because they 

are designated as a hazardous air 

pollutant under section 112 of the CAA. 

The preambles to the May 25,1983 

NPRM and the April 4,1985 final rule 

recognize that the statutory RQ of one • 

pound may not be appropriate for 

radionuclides. Radionuclides are also 

not addressed in today's final rule. The 

Agency will address the comments 

received in response to the earlier 

rulemaking efforts, as well as other 

radionuclide RQ issues, in a future 

rulemaking when our analysis, now 

ongoing, is completed. 

D. Potential Carcinogen RQs 

As discussed in Section III below, 

today's final rule proposes no RQ 

adjustments for substances with onepound statutory RQs which will be 

ranked for the primary criterion of 

potential carcinogenicity. The ranking 

methodology for such substances will be 

discussed in detail in an upcoming 

NPRM in which the Agency will propose 

to adjust RQs for potentially 

carcinogenic substances. 

III. Reportable Quantity Adjustments 

A. Introduction 

Until adjusted by regulation under 

section 102(a), CERCLA section 102(b) 

establishes a reportable quantity of one 

pound for hazardous substances other 

than those hazardous substances with 

RQs established under section 311 of the 

Clean Water Act (CWA); for these latter 

substances, section 102(b) adopts the 

established CWA RQs. This rulemaking 

adjusts the statutory RQs based upon 

specific scientific and technical criteria 

that relate to the possibility of harm 

from the release of a hazardous 

substance in a reportable quantity. 

These RQ adjustments, therefore, enable 

the Agency to focus its resources on 

those releases which are most likely to 

pose potential threats to public health 

and welfare and the environment. Such 

RQ adjustments will also relieve the 

regulated community and emergency 

response personnel from the burden of 

making and responding to reports of 

releases which are unlikely to pose such 

threats. 

In this rule, RQs for 102 hazardous 

substances are adjusted, including seven 

of the waste streams that were not 

assigned adjusted RQs in the April 4, 

1985 final rule. In today's rule, EPA 

raises the RQs of 31 specific hazardous 

substances, lowers the RQs of 30 

specific hazardous substances, and 

leaves the RQs of 34 specific hazardous 

substances at the levels originally 

established by CERCLA (or by CWA 

section 311). This rule also raises the 

RQs of the seven waste streams. In 

addition, today's final rule adjusts to 100 

pounds the RQ for releases of RCRA 

unlisted solid wastes (as defined in 40 

CFR 261.2), which exhibit the RCRA 

characteristics of ignitability, 

corrosivity, or reactivity but which are 

not "wastes" (and thus not CERCLA 

hazardous substances) until after they 

are released and are not cleaned up for 

repackaging, reprocessing, recycling, or 

reuse (see 40 CFR 302.4(b)). The 

remaining 275 hazardous substances not 

addressed by today's final rule are being 

evaluated for potential carcinogenicity 

and/or chronic toxicity. Analyses of 

these hazardous substances are nearly 

complete and adjusted RQs based on 

potential carcinogenicity and/or chronic 

toxicity will be proposed in an NPRM in 

the near future. 

The primary purpose of notification is 

to ensure that releasers notify the 

federal government so that federal 

personnel can assess the need to 

respond to the release. The different RQ 

levels do not reflect a determination that 

a release of a CERCLA substance will 

be hazardous at the RQ level and not 

hazardous below that level. EPA has not 

made such a determination because the 

Agency has found that the actual hazard 

will vary with the unique circumstances 

of the release, and extensive scientific 

data and analysis would be necessary to 

determine the hazard presented by each 

substance under a number of possible 

circumstances. Instead, the RQs are 

designed to be a trigger for notification 

and reflect the Agency's judgment that 

the federal government should be 

notified of certain releases to which a 

federal response might be necessary. 

The reportable quantities represent a 

determination only of possible or 

potential harm, not that releases of a 

particular amount of a hazardous 

substance necessarily will be harmful to 

public health or welfare or the 

environment. 
P.6 

Federal Register / Vol. 51, No. 188 / Monday, September 29, 1988 / Rules and Regulations 34537 

Because CERCLA's RQ adjustment 

methodology differs from that used 

pursuant to section 311 of the Clean 

Water Act, some of the RQs set today 

are not the same as those initially 

promulgated under the CWA. The April 

4,1985 final rule (50 FR 13456) amended 

40 CFR 117.3 (see 44 FR 50776, August 

29,1979), to make RQs adjusted under 

CERCLA the applicable RQs for 

purposes of CWA section 311. Today's 

rule therefore adjusts not only CERCLA 

RQs, but, where applicable, CWA RQs 

as well. A person in charge need not 

report a single release twice in order to 

satisfy CERCLA and CWA reporting 

requirements; one report to the NRC 

suffices. 

B. Summary of the Methodology 

Underlying the Reportable Quantity 

Adjustments 

The Agency has wide discretion in 

adjusting the statutory RQs for 

hazardous substances under CERCLA.3 

Administrative feasibility and 

practicality are important 

considerations. The Agency's selected 

methodology for adjusting RQs begins 

with an evaluation ofthe intrinsic 

physical, chemical, and toxicological 

properties of each designated hazardous 

substance. The intrinsic properties 

examined—called "primary criteria"— 

are aquatic toxicity, mammalian toxicity 

(oral, dermal, and inhalation), 

ignitability, reactivity, chronic toxicity, 

and potential carcinogenicity. (For the 

purposes of this rule, chronic toxicity— 

referred to as "other toxic effects" in the 

May 25,1983 NPRM—is defined as 

toxicity resulting from repeated or 

continuous exposure to either a single 

dose or multiple doses of a hazardous 

substance.) 

The Agency ranks each intrinsic 

property on a five-tier scale, associating 

a specific range of values on each scale 

with a particular RQ value. This five-tier 

scale uses the five RQ levels of 1,10, 

100,1000, and 5000 pounds originally 

established pursuant to CWA section 

311 (see 40 CFR Part 117 and 44 FR 

50776). Each substance receives several 

tentative RQ values based on its 

particula properties.6 The lowest of all 

5

 As Senate Report No. 848, 96th Congress. 

Second Session (1980) notes at page 29: "In 

determining reportable quantities under this 

paragraph [section 3(a)(2) of S.1480J, the President 

may consider any factors deemed relevant to 

administering the reporting requirements or the 

President's other responsibilities under this Act." 

6

 If available evidence shows that a hazardous 

substance hydrolyzes into a reaction product that is 

more hazardous than the original substance, the 

primary criteria are applied to the more hazardous 

product rather than to the original substance to 

determine the tentative RQ values for the original 

substance. For example, substances known to 

of the tentative RQs becomes the 

"primary criteria RQ" for that 

substance. 

The Agency received several 

comments on its general RQ adjustment 

methodology. One commenter supported 

the Agency's decision to continue to use 

the five-tier system for setting RQs 

developed under CWA section 311. 

Other commenters objected to EPA's use 

of the primary criteria of chronic toxicity 

and potential carcinogenicity to adjust 

RQs. One of these commenters 

suggested that the methodology used to 

evaluate and assign chronic toxicity 

rankings should employ data based on 

routes of exposure and pharmacokinetic 

parameters when converting animal 

doses to human doses. The current 

approach assumes 50 percent absorption 

from inhalation exposures and 100 

percent absorption from oral exposures. 

The Agency decided to use these 

assumptions instead of reviewing 

absorption and pharmacokinetic data 

because the purpose of RQ adjustments 

is to establish levels at which the 

federal government should be notified of 

releases, not to develop lengthy and 

complex risk assessment scenarios. The 

Agency has previously considered and 

rejected the use of risk assessment 

scenarios to adjust RQs (see the April 4, 

1985 final rule at 50 FR 13456). 

The same commenter also requested 

an explanation of the Agency's decision 

to estimate chronic exposure by 

reducing subchronic effect levels by a 

factor of 10 or less. The Agency believes 

that this approach is well supported by 

experimental evidence which shows 

that the ratio of subchronic levels to 

levels derived after chronic exposure is 

2.0 or less for more than half of the 

chemicals studied. Approximately 96 

percent of these ratios are below a value 

of 10. This empirically derived 

relationship between chronic and 

subchronic effect levels indicates that it 

is reasonable to employ a 10-fold 

uncertainty factor to account for 

differences between subchronic and 

chronic effect levels. For a detailed 

discussion of the chronic toxicity 

methodology, see the Technical 

Background Document to Support 

generate hydrogen sulfide or phosphine upon 

hydrolysis are assigned primary criteria RQs on the 

basis of these degradation products. In the April 4. 

1985 NPRM. the primary criteria RQs of four 

substances (ammonium bifluoride, lead sulfide, 

sodium bifluoride, and zinc phosphide) were based 

on the application of the primary criteria to the 

more hazardous reaction products rather than to the 

original substances. In today's final rule, lead 

sulfide has been removed from the group of 

substances whose RQs are based on application of 

the primary criteria to reaction products. For a 

discussion of the reasons the Agency removed lead 

sulfide from this group, see Section III. C. 

Rulemaking Pursuant to CERCLA 

Section 102, Volume 1, (Appendix B), 

March 1985, available for inspection at 

Room LG, U.S. Environmental Protection 

Agency, 401 M Street, SW, Washington, 

DC 20460. 

Another commenter opposed 

adjusting RQs upwards because many of 

the 105 substances for which adjusted 

RQs were proposed in the April 4,1985 

NPRM had not been evaluated 

adequately for potential carcinogenic or 

chronically toxic effects. This 

commenter suggested that statutory RQs 

be retained until it is proven that a 

designated hazardous substance does 

not exhibit either chronic toxicity or 

potential carcinogenicity, as applicable. 

Although the Agency retains the 

statutory RQs if it has evidence 

indicating chronic toxicity or potential 

carcinogenicity pending more detailed 

analysis, the Agency does not delay RQ 

adjustment until it has evidence which 

affirmatively proves the absence of such 

characteristics. To attempt to 

affirmatively prove the absence of 

chronic toxicity or potential 

carcinogenicity, even if technically 

possible, would greatly strain Agency 

resources with little added benefit to 

human health and environmental 

protection. The data available to the 

Agency provide no clear evidence of 

chronic toxicity or potential 

carcinogenicity for any of the 

substances referred to by the 

commenter. However, the Agency will 

readjust RQs as necessary in the future 

to take into account new information 

concerning the hazard of designated 

substances. 

For a more detailed discussion of the 

primary criteria, including chronic 

toxicity, see the preamble of the May 25, 

1983 NPRM (48 FR 23562-23565), the 

preamble of the April 4,1985 final rule 

adjusting reportable quantities (50 FR 

13456, section V.D.I), and the Technical 

Background Document to Support 

Rulemaking Pursuant to CERCLA 

Section 102, Volume 1, March 1985, 

available for inspection at Room LG, 

U.S. Environmental Protection Agency, 

401 M Street. SW, Washington, DC 

20460. 

After the primary criteria RQs are 

assigned, substances are further 

evaluated for their susceptibility to 

certain degradative processes. These 

natural degradative processes are 

biodegradation, hydrolysis, and 

photolysis, or "BHP." These processes 

tend to reduce the relative potential for 

harm to public health and welfare and 

the environment of many hazardous 

substance releases. If hazardous 

substances have primary criteria RQs 
34538 Federal Register / Vol. 51, No. 188 / Monday, September 29, 1986 / Rules and Regulations 

P.7 

already at the maximum assignable 

level of 5000 pounds or are found to be 

bioaccumulative, environmentally 

persistent, highly reactive (or otherwise 

unusually hazardous), or degradable to 

more hazardous products, they are not 

eligible for a one-level RQ increase on 

the basis of BHP. On the other hand, if 

analysis indicates that an eligible 

hazardous substance degrades relatively 

rapidly to a less harmful substance or 

compound through one or more of these 

processes when it is released into the 

environment, the primary criteria RQ is 

raised one level on the basis of BHP. 

The single RQ assigned to each 

hazardous substance on the basis of the 

primary criteria and BHP becomes the 

adjusted RQ for the substance. Under no 

circumstances may the RQ for a 

substance be raised more than one level 

based on BHP. 

For a more detailed discussion of the 

BHP criteria and their use in 

combination with the primary criteria, 

see the preamble of the May 25,1983 

NPRM (48 FR 23565), the preamble of the 

April 4,1985 final rule adjusting 

reportable quantities (50 FR 13456, 

sections V.C.I, and V.D.2.) and the 

Technical Background Document to 

Support Rulemaking Pursuant to 

CERCLA Section 102, Volume 1, March 

1985, available for inspection at Room 

LG, U.S. Environmental Protection 

Agency, 401 M Street SW, Washington. 

DC 20460. 

C. Substances for Which RQs Are 

Adjusted 

This section describes the process 

EPA used to select the 102 substances 

for which today's rule adjusts RQs. As 

described below, these 102 substances 

have been assigned adjusted RQs on the 

basis of the five primary criteria other 

than potential carcinogenicity. The 

adjustments are as follows: 28 

hazardous substances were adjusted on 

the basis of chronic toxicity only, 13 

hazardous substances on the basis of 

chronic toxicity and at least one other 

primary criterion, and 61 hazardous 

substances on the basis of primary 

criteria other than chronic toxicity. 

Prior to the May 25,1983 NPRM, the 

Agency identified a number of CERCLA 

hazardous substances that exhibited 

chronic toxicity or potential 

carcinogenicity (or both). EPA identified 

the chronically toxic substances using a 

variety of EPA background documents, 

reports prepared by state agencies, and 

other sources. EPA identified the 

potential carcinogens using the 

Monographs of the International Agency 

for Research on Cancer, the First, , 

Second, and Third Annual Reports on 

Carcinogens of the National Toxicology 

Program, U.S. Department of Health and 

Human Services, final Agency 

determinations published in the Federal 

Register identifying a substance as a 

potential carcinogen, and 

determinations by the Agency's Office 

of Health and Environmental 

Assessment that a substance may be a 

potential carcinogen based on either 

published or unpublished data. Lists of 

these substances were submitted to 

EPA's Environmental Criteria and 

Assessment Office (ECAO) for further 

chronic toxicity analysis and to EPA's 

Carcinogen Assessment Group (CAG) 

for further carcinogenicity analysis.; 

For further information concerning the 

selection of hazardous substances for 

ECAO and CAG review, see the 

Technical Background Document to 

Support Rulemaking Pursuant to 

CERCLA Section 102, Volume 1, March 

1985, available for inspection at Room 

LG, U.S. Environmental Protection 

Agency, 401 M Street, SW, Washington, 

DC 20460. 

Of the 102 hazardous substances 

whose RQs are adjusted by today's rule, 

95 were evaluated for chronic toxicity 

by ECAO. In addition, the Agency 

initially identified twelve of the 102 

hazardous substances for evaluation as 

potential carcinogens.7 CAG's 

subsequent evaluation of these twelve 

hazardous substances found no 

substantive evidence that any of the 

twelve are potential carcinogens. 

Therefore, the RQs of these twelve 

substances have been adjusted using 

available data on the other five primary 

criteria. Of the 105 hazardous 

substances for which adjusted RQs were 

proposed in the April 4,1985 NPRM, the 

Agency subsequently identified twelve 

additional hazardous substances which 

may be potential carcinogens.8 Seven of 

these substances (lead chloride, lead 

nitrate, tetraethyl lead, cresols, 1,3-

dichloropropene, dichloropropanedichloropropene (mixture), and captan) 

currently have statutory RQs 

established under the CWA which will 

be adjusted downwards or remain the 

same as a result of today's rule. The 

RQs for another two of these twelve 

substances, waste stream K052 and 

7

 The twelve substances are: acenaphthene. 

acenaphthylene, anthracene, benzo(ghi)perylene. 

delta-BHC. chromic acetate, chromic sulfate, ferric 

dextran, fluoranthene, fluorene, phenanthrene. and 

pyrene. (The Agency has proposed in an NPRM 

published November 8,1985, to delist ferric dextran 

as a hazardous waste under RCRA and to delete it 

from the list of CERCLA hazardous substances 

under section 102(a) (see 50 FR 4646B)). 

s

 These twelve substances are lead, lead chloride, 

lead nitrate, tetraethyl lead, waste stream K052. 

pentachloroethane, methyl chloride, cresols. waste 

stream F004.1,3-dichloropropene, dichloropropanedichloropropene (mixture), and captan. 

waste stream F004, are based on their 

respective constituents, tetraethyl lead 

and cresols. The RQs for waste stream 

K052 and waste stream F004 will be 

adjusted today to correspond to the RQs 

for tetraethyl lead and cresols, 

respectively. The one-pound statutory 

RQs for the three remaining 

substances—lead, pentachloroethane, 

and methyl chloride—will be retained, 

pending the outcome of their evaluation 

for potential carcinogenicity. The 

Agency will evaluate lead chloride, lead 

nitrate, tetraethyl lead, waste stream 

K052, cresols, waste stream F004,1,3-

dichloropropene, dichloropropanedichloropropene (mixture), and captan 

for potential carcinogenicity and, if 

necessary, readjust their final RQs 

based on potential carcinogenicity, in a 

future rulemaking action. 

The portion of Table 302.4 printed in 

this rule provides a list of all CERCLA 

hazardous substances for which 

adjusted RQs are established by this 

rule. The table indicates both the RQ 

level originally established by statute 

and the adjusted RQ for each substance. 

In addition, the table includes nineteen 

hazardous substances not previously 

published in the table (see note 3 

above). 

Several commenters requested that 

the RQs of various hazardous 

substances be increased from the levels 

proposed in the April 4, 1985 NPRM. The 

Agency agrees with three commenters 

who suggested that the proposed RQ of 

100 pounds for lead sulfide be raised to 

5000 pounds on the grounds that lead 

sulfide is very insoluble and its aquatic 

toxicity is low. The proposed 100-pound 

RQ for lead sulfide was based in part on 

the generalization that soluble sulfides 

hydrolyze in water to form hydrogen 

sulfide whose RQ is 100 pounds. The 

commenters objected to the use of this 

methodology for setting the RQ for lead 

sulfide on the basis that lead sulfide is 

highly insoluble. The Agency agrees that 

lead sulfide is too insoluble to produce 

significant amounts of hydrogen sulfide, 

even in highly acidic solutions. 

Accordingly, the RQ of lead sulfide in 

the final rule will be raised from its 

proposed value of 100 pounds in the 

April 4,1985 NPRM to 5000 pounds, 

based on its aquatic toxicity, the same 

value it had under section 311 of the 

Clean Water Act. 

One commenter suggested that the RQ 

of chloroethane be increased to 5000 

pounds from the proposed level of 100 

pounds because "it is the least toxic of 

all the chlorinated hydrocarbons." 

Although the quoted statement is true, 

the Agency proposed a 100-pound RQ 

for chloroethane, not because of its 
P.8 

Federal Register / Vol. 51, No. 188 / Monday, September 29. 1986 / Rules and Regulations 34539 

toxicity, but because of its ignitability 

(low flash point of —58 °F and low 

boiling point of 54 °F). Therefore, the 

proposed RQ of 100 pounds for 

chloroethane will be retained in the final 

rule. 

Other commenters also requested 

increases in the RQs of various 

hazardous substances. But as was the 

case with the suggested increase for 

chloroethane, these other increases 

would be inconsistent with the overall 

RQ adjustment methodology and 

characteristics of the respective 

substances. 

One commenter recommended that 

the RQs of thirteen hazardous 

substances proposed in the April 4,1985 

NPRM be lowered on the basis of 

aquatic toxicity data provided by the 

commenter. Some of the data are based 

on aquatic toxicity tests that used 

species and test procedures which 

deviate from the standard species and 

procedures used by the Agency for RQ 

adjustment purposes. For the most part, 

the suggested RQ adjustments were 

based on such non-standard species and 

procedures and therefore are not 

accepted by the Agency. 

For two substances 

(pentachlorobenzene and phorate), 

however, the commenter used data 

based on the standard 96-hour LC50 

aquatic toxicity test and a standard 

species, the bluegill. The new aquatic 

toxicity data for pentachlorobenzene 

justify lowering the RQ of that 

substance from the proposed level of 

1000. pounds to 10 pounds. The new 

aquatic toxicity data for phorate support 

a one-pound RQ which should be raised 

one RQ level to 10 pounds based on 

BHP. The Agency based the proposed 

1000-pound RQ for phorate on 

mammalian toxicity data which 

supported a 100-pound RQ. Because 

phorate is hydrolyzed readily, the RQ 

previously was raised one level to 1000 

pounds. In sum, the RQs for both 

pentachlorobenzene and phorate will be 

set at 10 pounds in today's final rule, 

instead of 1000 pounds, as they were in 

the April 4,1985 NPRM. 

Although not specifically requested by 

the commenter, the RQ of a third 

hazardous substance, waste stream 

JC039, is also being lowered in the final 

rule. K039 is a filter cake resulting from 

the production of phorate and thus 

contains phorate as a constituent. 

Because the RQ of a waste stream is 

based upon the lowest RQ of any of its 

hazardous constituents, the appropriate 

RQ for K039 should also be 10 pounds in 

light of the new aquatic toxicity data on 

phorate. Accordingly, the RQ for K039 

will be lowered from its 100-pound level 

in the April 4,1985 NPRM to 10 pounds 

to make its RQ consistent with the new 

RQ for its constituent, phorate. 

D. ICR Substances 

As was stated in the April 4,1985 

NPRM, the obligation to report releases 

into the environment of substances 

exhibiting the Resource Conservation 

and Recovery Act (RCRA) 

characteristics of ignitability, 

corrosivity, or reactivity (ICR) had been 

the subject of some confusion. Under 

section 103(a) of CERCLA, the person in 

charge of a vessel or facility must notify 

the NRC of the release of a "hazardous 

substance." The term "hazardous 

substance," as defined by section 

101(14) of CERCLA, includes substances 

designated pursuant to section 102 of 

CERCLA as well as substances 

designated by other federal 

environmental legislation, including 

RCRA. CERCLA section 101(14)(C) 

designates as a CERCLA hazardous 

substance "any hazardous waste having 

the characteristics identified under or 

listed pursuant to section 3001 of 

[RCRA]." The "characteristics 

identified" under RCRA include 

ignitability, corrosivity, and reactivity. 

Therefore, the release of a nondesignated substance exhibiting an ICR 

characteristic is the release of a 

hazardous substance if the substance is 

a waste.9 

The April 4,1985 final rule established 

a 100-pound RQ for ICR substances 

which are wastes prior to release. 

However, due to confusion with respect 

to reporting requirements for ICR 

substances which become wastes only 

after release, the Agency proposed in 

the NPRM, published concurrently with 

the April 4,1985 final rule, to apply the 

same RQ to the latter type of ICR 

substances. The reportable quantity 

adjustment of 100 pounds for releases of 

ICR substances which become wastes 

only after release becomes effective 

with today's final rule. 

In the April 4,1985 NRPM, the Agency 

acknowledged that CERCLA criminal 

penalties attach only if the person in 

charge knew or should have known that 

the released material was a hazardous 

substance, and recognized that 

transporters may not be aware that 

substances they are carrying exhibit ICR 

characteristics. Several commenters 

suggested that this lack of knowledge 

may extend to others in the industrial 

• Because CERCLA regulates these unlisted 

substances by virtue of their classification as RCRA 

hazardous wastes, the non-designated substance 

must, of course, also be a solid waste, as defined in 

40 CFR 261.2 and not excluded from regulation as a 

hazardous waste under 40 CFR 261.4(b), for the 

notification requirements based on ICR 

characteristics to apply. See 40 CFR 302.4(b). 

chain such as manufacturers, marketers, 

and "other handlers" of these materials. 

However, regardless of the general 

likelihood that any class of persons may 

or may not have the required level of 

knowledge, enforcement decisions will 

be made on a case-by-case basis upon 

the facts present in a particular 

situation. 

With respect to ICR substances which 

are not wastes prior to release, the April 

4,1985 NPRM makes a distinction 

between those substances which upon 

release are spilled and not cleaned up or 

are cleaned up only for eventual 

disposal, and those which are released 

and immediately cleaned up for 

repackaging, reprocessing, recycling, or 

reuse. Because the former substances 

are wastes, their release must be 

reported if it equals or exceeds an RQ of 

100 pounds. The latter substances are 

not wastes and therefore their release 

need not be reported pursuant to 

CERCLA section 103. For purposes of 

clarification, if an ICR substance which 

is not a waste prior to release is 

released and only partially cleaned up, 

the release need be reported only if the 

amount not recovered equals or exceeds 

an RQ (i.e., 100 pounds). If the amount 

spilled and not recovered (or recovered 

only for eventual disposal) is less than 

100 pounds, there has been no release of 

an RQ or more of a hazardous substance 

and the reporting requirements of 

section 103, therefore, are not triggered. 

Several commenters questioned the 

legality and practicality of requiring 

reporting of non-designated ICR 

substances which become wastes only 

after their initial release. However, as 

stated above, CERCLA defines the term 

"hazardous substance" to include 

hazardous wastes that exhibit ICR 

characteristics and thus requires 

reporting of releases of such wastes. To 

the extent an ICR substance enters the 

environment and is not recovered for 

repackaging, reprocessing, recycling, or 

reuse, that substance becomes a waste 

and thus is subject to the reporting 

requirements of section 103. Moreover, 

because the environmental impact upon 

release of such a substance does not 

depend upon its status as a waste prior 

to release, the Agency believes that, in 

the interest of protecting human health 

and the environment, the federal 

government must be notified of such 

releases. This notification requirement is 

consistent with the statutory purpose of 

section 103(a) because it allows the 

predesignated On-Scene Coordinator to 

evaluate the need for a federal response 

action to the release of a non-designated 

substance which, due to its ICR 

characteristics, may be harmful to the 
P.9 

34540 Federal Register / Vol. 51, No. 188 / Monday, September 29, 1986 / Rules and Regulations 

environment if released in an amount 

equal to or greater than the 100-pound 

RQ. 

One commenter objected to a 100-

pound RQ for non-designated ICR 

substances which only become wastes 

after their initial release. The 

commenter believed that a 100-pound 

RQ for such substances is unnecessarily 

stringent and suggested instead a 1000-

pound RQ. EPA proposed a 100-pound 

RQ for these non-designated substances 

because substances which are wastes 

prior to their initial release and exhibit 

ICR characteristics have an RQ of 100 

pounds. An RQ of 100 pounds was 

originally proposed for the latter group 

of substances in the May 25,1983 NPRM 

(48 FR 23552). The Agency's rationale for 

this RQ was that since the constituents 

of unlisted wastes generally are 

unknown, it is very difficult to apply the 

RQ adjustment criteria to such wastes. It 

is reasonable to assume that, on the 

average, these wastes will fall within 

the middle of the five RQ levels (i.e., 100 

pounds). The same rationale is equally 

applicable to ICR substances that 

become wastes after release. Because 

the environmental impact of a release of 

a substance exhibiting an ICR 

characteristic does not depend on 

whether that substance was a waste 

prior to its initial release, the RQ for 

either type of ICR waste should logically 

be the same. In addition, the Agency 

believes that setting the same RQ for 

both types of releases will ease the 

reporting burden on the regulated 

community. For these reasons, EPA will 

retain a 100-pound RQ for nondesignated ICR substances which are 

not wastes prior to their initial release. 

Another commenter believed.that 

adopting an RQ for non-designated ICR 

substances that do not become wastes 

until after their release would result in 

unnecessary reporting of releases 

associated with bulk liquid tank venting. 

The Agency notes that, as a general rule, 

releases from tank venting are in the 

form of uncontained gases. However, 

because uncontained gases are not 

RCRA solid wastes, they are not 

unlisted hazardous substances under 40 

CFR 302.4(b). Therefore, emissions of 

gases that are not wastes prior to their 

release and that are associated with 

bulk liquid tank venting are not subject 

to the 100-pound RQ for non-designated 

ICR substances. The release of a listed 

hazardous substance under 40 CFR 

302.4(b), however, is subject to 

notification requirements regardless of 

the form of the released substance. 

IV. Reportable Quantity Adjustments 

Under Section 311 of the Clean Water 

Act 

The April 4,1985 final rule (50 FR 

13456) amended 40 CFR 117.3 to make 

reportable quantities adjusted under 

CERCLA the applicable reportable 

quantities for notification of discharges 

of hazardous substances pursuant to 

Clean Water Act section 311. Thus, the 

RQ adjustments in this rule apply to 

both CERCLA and CWA section 311 

RQs. Although the April 4,1985 final 

rule amended 40 CFR 117.3, Table 117.3, 

containing adjusted RQs for CWA 

section 311 substances, was not 

published at that time. To eliminate 

discrepancies in adjusted RQs as listed 

in Table 302.4 (CERCLA) and Table ' 

117.3 (CWA), Table 117.3 is published in 

today's rule. Reportable quantities under 

both CERCLA and the CWA are set 

forth in Table 302.4. Where there is a 

release of a hazardous substance in a 

reportable quantity into navigable 

waters, a single report to the National 

Response Center by the person in charge 

will satisfy the notification requirements 

of both statutes. The one commenter 

who addressed this issue favored 

equalizing RQs under CERCLA and 

CWA. For further discussion of the 

relationship between CERCLA RQs and 

CWA section 311 RQs, see the May 25, 

1983 NPRM preamble at 48 FR 23569 and 

the April 4,1985 final rule preamble at 

50 FR 13456. 

V. Summary of Supporting Analyses 

Executive Order 12291 requires that 

regulations be classified as major or 

non-major for purposes of review by the 

Office of Management and Budget 

(OMB). According to E.0.12291, major 

rules are regulations that are likely to 

result in: 

(1) An annual effect on the economy 

of $100 million or more; or 

(2) A major increase in costs or prices 

for consumers, individual industries, 

federal, state, or local government 

agencies, or geographic regions; or 

(3) Significant adverse effects on 

competition, employment, investment, 

productivity, innovation, or on the 

ability of United States-based 

enterprises to compete with foreignbased enterprises in domestic or export 

markets. 

An economic analysis performed by the 

Agency, available for inspection at 

Room LG, U.S. Environmental Protection 

Agency, 401 M Street, SW, Washington, 

DC 20460. shows that today's final rule 

is non-major, because the rule will result 

in savings of approximately $1 million 

annually. Of this amount, about $200,000 

annually will be saved by the regulated 

community (the remainder to be saved 

by government). 

The Regulatory Flexibility Act of 1980 

requires that a Regulatory Flexibility 

Analysis be performed for all rules that 

are likely to have a "significant impact 

on a substantial number of small 

entities." This rule adjusts RQs for 

substances that have a substantially 

lower total production volume than the 

substances that received adjusted RQs 

in the April 4,1985 final rule. EPA's 

analysis estimates that the economic 

effects of both the April 4,1985 final rule 

and today's final rule are directly 

proportional to total production volume. 

Thus, the impact of today's rule on small 

entities will be substantially less than 

the impact of the April 4,1985 final rule. 

The analysis of the April 4,1985 final 

rule demonstrated that the rule would 

not have a significant impact on small 

entities. See the Regulatory Impact 

Analysis of Reportable Quantity 

Adjustments Under Sections 102 and 103 

of CERCLA, available for inspection at 

Room LG, U.S. Environmental Protection 

Agency, 401 M Street, SW, Washington, 

DC 20460. Therefore, as with the April 4, 

1985 final rule, EPA certifies that no 

Regulatory Flexibility Analysis is 

necessary for today's rule. 

The Information Impact Analysis 

performed for the April 4,1985 final rule 

indicated that that final rule would 

decrease the paperwork burden imposed 

on parties other than EPA by about 

50,000 hours. Today's RQ adjustments 

will provide a small additional reduction 

in the paperwork burden imposed on the 

regulated community for information 

collection associated with reporting 

releases. Because the effect of this rule 

on the paperwork burden is not only 

minimal, but also a reduction, EPA has 

determined that no further Information 

Impact Analysis need be performed for 

this final rule. 

OMB has approved the information 

collection requirements contained in this 

rule under the provisions of the 

Paperwork Reduction Act of 1980, 44 

U.S.C. section 3501 et seq., and has 

assigned OMB control number 2050-

0046. 

List of Subjects 

40 CFR Part 302 

Air pollution control, Chemicals, 

Hazardous materials, Hazardous 

materials transportation, Hazardous 

substances, Hazardous wastes, 

Intergovernmental relations, Natural 

resources, Nuclear materials, Pesticides 

and pests, Radioactive materials. 

Reporting and recordkeeping 

requirements, Superfund, Waste 
P.10 

Federal Register / Vol. 51, No. 188 / Monday, September 29, 1986 / Rules and Regulations 34541 

treatment and disposal, Wate r pollution 

control. 

40 CFR Part 117 

Hazardous substances, Penalties, 

Reporting and recordkeeping 

requirements, Wate r pollution control. 

Dated: August 20,1986. 

Lee M. Thomas, 

Administrator. 

40 CFR Part 302 is amended as 

follows: 

PART 302—DESIGNATION, 

REPORTABLE QUANTITIES, AND 

NOTIFICATION 

1. The authority citation for Part 302 

continues to read as follows: 

Authority: Sec. 102 of the Comprehensive 

Environmental Response, Compensation, and 

Liability Act of 1980, 42 U.S.C. 9602: sees. 311 

and 501(a) of the Federal Water Pollution 

Control Act, 33 U.S.C. 1321 and 1361. 

2. Section 302.4 is amende d by 

revising Table 302.4 to read as follows: 

§ 302.4 Designation of hazardous 

substances. 

Table 302.4—List of Hazardous 

Substances and Reportable Quantities 

Note—The numbers under the column 

headed "CASRN" are the Chemical Abstracts 

Service Registry Numbers for each hazardous 

substance. Other names by which each 

hazardous substance is identified in other 

statutes and their implementing regulations 

are provided in the "Regulatory Synonyms" 

column. The "Statutory RQ" column lists the 

RQs for hazardous substances established by 

section 102 of CERCLA. The "Statutory 

Code" column indicates the statutory source 

for designating each substance as a CERCLA 

hazardous substance: "1 " indicates that the 

statutory source is section 311(b)(4) of the 

Clean Water Act, "2" indicates that the 

source is section 307(a) of the Clean Water 

Act, "3" indicates that the source is section 

112 of the Clean Air Act, and "4" indicates 

that the source is RCRA section 3001. The 

"RCRA Waste Number" column provides the 

waste identification numbers assigned to 

various substances by RCRA regulations. The 

column headed "Category" lists the code 

letters "X", "A", "B", "C", and "D", which are 

associated with reportable quantities of 1,10, 

100,1000, and 5000 pounds, respectively. The 

"Pounds (kg)" column provides the reportable 

quantity for each hazardous substance in 

pounds and kilograms. 

TABLE 302.4 - LIST OF HAZARDOUS SUBSTANCES AND REPORTABLE QUANTITIES 

Hazardous Substance CASRN Regulatory Synonyms 

Statutory 

Code t 

RCRA 

Waste 

Number 

Category 

Po_m±s(Kg) 

Acenaphthene _ „ 

Acenaphthylene _ 

Acetic acid, thallium(t) salt 

2-Amino-1-methyl benzene _ 

4-Amino-t-methyl benzene 

Ammonia _ 

Ammonium bifluoride _ 

Anthracene _ 

Antimony t t -

Benzene, hydroxy- _ 

Benzene, pentachloroBenzene. 1,3,5-trinitroBenzo[j,kJffuorene 

Benzotghilperylene 

p-Benzoquinone _ _ 

delta - BHC 

Captan _ 

Carbamtmidoselenoic acid 

Carbon bisulfide _ 

Carbon disulfide 

Carbonic acid, dithatlium(l) salt 

Chloroethane _ -

Chromic acetate _ „ 

Chromic sulfate -

Chromous chloride.- _ 

Copper t t _ _ 

Cresol(s) _ _ 

83329 

20S968 

563688 

95534 

106490 

7664417 

1341497 

120127 

7440360 

108952 

608935 

9S354 

206440 

191242 

106514 

319868 

133062 

630104 

75150 

75150 

6533739 

75003 

1066304 

10101538 

10049055 

7440508 

1319773 

108394 

95487 

Thallium(l) acetate.. 

o-Toluidine 

p-Toluidine 

Phenol 

Pentachlorobenzene... 

sym-Trinitrobenzene... 

Fluoranthene _ 

1,4-Cyclohexadienedione.. 

Selenourea 

Carbon disulfide 

Carbon bisulfide 

Thallium(l) carbonate.. 

Cresylic acid.. 

r 

r 

i* 

ioo 

5000 

1* 

i* 

1000 

1* 

r 

i* 

1* 

r 

i* 

10 

i* 

5000 

5000 

r 

r 

1000 

iooo 

1000 

r 

iooo 

2 

2 

4 

4 

4 

1 

1 

2 

2 

1.2,4 

4 

4 

2.4 

2 

4 

2 

1 

4 

1.4 

1.4 

4 

2 

1 

1 

1 

2 

1,4 

U214 

U328 

U353 

U188 

U183 

U234 

0120 

U197 

P103 

P022 

P022 

U215 

U052 

B 

D 

B 

X 

X 

B 

B 

0 

O 

C 

A 

A 

B 

D 

A 

X 

A 

C 

B 

B 

B 

B 

C 

C 

C 

0 

C 

100 (45.4) 

6000 (2270) 

100 (45.4) 

1# (0.454) 

1# (0.454) 

100 (45.4) 

100 (45.4) 

SOOO (2270) 

5000 (2270) 

1000 (454) 

10 (4.54) 

10 (4.54) 

100 (45.4) 

5000 (2270) 

10 (4.54) 

1 (0.454) 

10# (4.54) 

1000 (454) 

100 (45.4) 

100 (45.4) 

100 (45.4) 

100 (45.4) 

1000 (454) 

1000 (454) 

1000 (454) 

5000 (2270) 

1000* (454) 
34542 Federal Register / Vol. 51, No. 188 / Monday, September 29, 1986 / Rules and Regulations 

p.11 

TABLE 302.4 - LIST OF HAZARDOUS SUBSTANCES AND REPORTABLE QUANTITIES-Continued 

Hazardous Substance CASRN Regulatory Synonyms 

Statutory 

RCRA 

Waste 

Number 

Category 

Pounds(Kg) 

PCresylic acid.. 

m-. 

Cupnc chloride 

Cupric sulfate 

Cupric tartrate 

1.4-Cyclohexadienedione 

Dichloropropane - Dichloropropene (mixture) 

Dich)oropropene(s) , 

2.3-Dichloropropene (isomer) 

1.3-pichloroproperte... 

Diethylamine 

Dimethylamine 

O.O-Dimethyl O-p-nitrophenyl phosphorothioate... 

Ethane, pentachloroEthion 

2-Ethoxyethanol 

Ethylene glycol monoethyl ether 

Ferric dextran "** 

Fluoranthene 

Fluorene 

Fulminic acid, mercury(ll) salt 

Hexachlorophene 

Hydrogen sulfide 

Hydrosulfuric acid.. 

Iron dextran • " 

Isoprene 

Lead t t 

Lead chloride 

Lead fluoborate 

Lead fluoride 

Lead iodide 

Lead nitrate 

Lead stearate 

Lead sulfate 

Lead sulfide 

Lead thiocyanate 

Mercuric nitrate 

Mercuric sulfate 

Mercuric thiocyanate.. 

108445 

1319773 

108394 

95487 

106445 

7447394 

7758987 

815827 

106514 

8003198 

26952238 

78886 

542756 

109897 

124403 

298000 

76017 

563122 

110805 

110805 

9004664 

206440 

86737 

628864 

70304 

7783064 

7783064 

9004664 

78795 

7439921 

7758954 

13814965 

7783462 

10101630 

10099748 

7428480 

1072351 

52652592 

56189094 

15739807 

7446142 

1314870 

592870 

10045940 

7783359 

592858 

Cresol(s).. 

p-Benzoquinone.. 

Propene, 1.3-dichloro-. 

Methanamine. N-methyl-. 

Methyl parathion 

Pentachloroethane 

Ethylene glycol monoethyl elher.. 

2-Ethoxyethanol 

Iron dextran " * 

8enzo[j,k] fluorene 

Mercury fulminate 

2,2"-Methylenebis(3.4,6-trichlorophenol).. 

Hydrosulfuric acid.. 

Sulfur hydride 

Hydrogen sulfide.... 

Sultur hydride 

Ferric dextran "*. . 

10 

10 

100 

r 

5000 

5000 

5000 

1000 

000 

00 

1.2.4 

1 

1.4 

1.4 

4 

1 

4 

4 

4 

2.4 

2 

4 

4 

1,4 

1000 

1* 

5000 

5000 

1000 

5000 

5000 

SOOO 

5000 

5000 

5000 

10 

16 

10 

U084 

U092 

P071 

U184 

U359 

U359 

U139 

U120 

P065 

U132 

U135 

U135 

1000 a (454) 

10 (4.54) 

10 (4.54) 

100 (45.4) 

10 (4.54) 

100 s (45.4) 

100 (45.4) 

100 # (45.4) 

100 (45.4) 

1000 (454) 

100 (45.4) 

1 » (0.454) 

10 (4.54) 

1 = (0.454) 

1 » (0.454) 

5000 (2270) 

100 (45.4) 

5000 (2270) 

10 (4.54) 

100 (45.4) 

100 (45.4) 

100 (45.4) 

D 

B 

X 

B 

B 

B 

B 

B 

D 

B 

D 

B 

A 

A 

A 

5000 (2270) 

100 (45.4) 

1-* (0.454) 

100« (45.4| 

100 (45.4) 

100 (45.4) 

100 (45.4) 

100* (45.4) 

5000 (2270) 

100 (45.4) 

5000 (2270) 

100 (45.4) 

10 (4.54) 

10 (4.54) 

10 (4.54) 
Federal Register / Vol. 51, No. 188 / Monday, September 29, 1986 / Rules and Regulations 34543 

P.12 

TABLE 302.4 - LIST OF HAZARDOUS SUBSTANCES AND REPORTABLE QUANTITIES-Continued 

Hazardous Substance 

Mercurous nitrate „._. 

2,2'-Methylenebis(3,4,6-trich!orophenot).-

Phenol _ ... 

Phosphorodithioic acid, O.O-diethyl S-<ethylthio) methyl 

ester. 

Ptumbane. tetraethylThallium t t , 

Thallium{lll) oxide L t 

CASRN 

10415755 

628864 

62384 

124403 

74873 

74873 

298000 

70304 

608935 

76017 

t08952 

62384 

296022 

298022 

78002 

542756 

110861 

107493 

7763008 

7782492 

7446084 

7446084 

630104 

1333831 

7632000 

10102188 

7783064 

7446166 

10031591 

78002 

t07493 

1314325 

7440280 

563688 

6533739 

7791120 

10102451 

1314325 

12039520 

Regulatory Synonyms 

O.O-Dimethyl O-p-nitrophenyl phosphorothioate _ 

Ethane, pentachloro- -

Phosphorodithioic acid, O.O-diethyl S-(ethylthio) ~.. 

methyl ester 

Selenium oxide _ -...« ...... 

Selenium dioxide _ ~ -...— —..-

- TM 

Hydrosulfuric acid 

Acetic acid, thaflium(l) salt 

RQ 

10 

1* 

t* 

1000 

1" 

t* 

100 

V 

1000 

1-

r 

1000 

r 

1* 

r 

100 

5000 

1" 

too 

1" 

1" 

1000 

1000 

1 * 

5000 

too 

1000 

100 

1000 

100 

100 

1 * 

r 

1* 

!• 

1" 

f 

1" 

1* 

Statutory 

Code t 

1 

4 

4 

1.4 

2.4 

2.4 

1.4 

4 

4 

4 

2 

1.2,4 

4 

4 

4 

1.4 

1.2.4 

2 

4 

1,4 

4 

2 

1.4 

1,4 

4 

1 

1 

1 

1.4 

1.4 

1.4 

1.4 

4 

2 

4 

4 

4 

4 

4 

4 

RCRA 

Waste 

Number 

P065 

P092 

U092 

U045 

U045 

P071 

U132 

U163 

U184 

U188 

P092 

P094 

P094 

P110 

U084 

U196 

P11T 

U204 

U204 

U204 

P103 

U135 

P115 

P110 

Pil l 

P113 

U214 

U215 

LI216 

0217 

P113 

P114 

Category 

A 

A 

B 

C 

X 

X 

B 

B 

B 

A 

X 

0 

C 

B 

A 

A 

A 

B 

O 

C 

A 

A 

B 

A 

A 

C 

B 

B 

B 

B 

B 

A 

A 

B 

C 

B 

B 

B 

B 

B 

C 

Final RO 

Pounds(Kg) 

10 (4.54) 

10 (4.54) 

100 (45.4) 

1000 (454) 

1 ff (0.454) 

1 # (0.454) 

100 (45.4) 

100 (45.4) 

100 (45.4) 

tO (4.54) 

t » (0.454) 

5000 (2270) 

1000(454) 

100 (45.4) 

10 (454) 

10 (4.54) 

1 0 * (4.54) 

100 # (45.4) 

5000 (2270) 

1000 (454) 

10 (4.54) 

10(4.54) 

100 (45.4) 

10 (4.54) 

10 (4.54) 

1000 (454) 

100 (45.4) 

»00 (45.4) 

100 (45.4) 

100 (45.4) 

100 (45.4) 

10 # 14.54) 

10 (4.54) 

IOO (45.4) 

1000 (454) 

100 (45.4) 

100 (45.4) 

100 (45.4) 

IOO (45.4) 

100 (45.4) 

1000 (454) 
34544 Federal Register / Vol. 51, No. 188 / Monday, September 29, 1986 / Rules and Regulations 

P.13 

TABLE 302.4 - LIST OF HAZARDOUS SUBSTANCES AND REPORTABLE QUANTITIES-Continued 

Hazardous Substance CASRN Regulatory Synonyms 

Statutory 

Code + 

RCRA 

Waste 

Number 

Final RO 

Category 

Pounds(Kg) 

Thallium(l) sulfate.. 

o-Toluidine 

p-Toluidine 

Trichlorfon 

Trimethylamine 

sym-Trinitrobenzene 

Unlisted Hazardous Wastes Characteristic of EP Toxicity.. 

Selenium DOlO 

Uranyl acetate •••*... 

Uranyl nitrate "• * 

Vanadium(V) oxide 

Vanadium pentoxide.. 

Vanadyl sullate 

Zinc t t 

Zinc acetate 

Zinc ammonium chloride.. 

Zinc borate.. 

Zinc carbonateZinc chloride.. 

Zinc cyanide.. 

Zinc fluoride... 

Zinc formate.. 

Zinc hydrosulfite... 

Zinc nitrate , 

Zinc phenolsulfonate.. 

Zinc phosphide 

Zinc silicofluoride 

Zinc sulfate.. 

7446186 

10031591 

95534 

106490 

52686 

75503 

99354 

N.A. 

N.A. 

541093 

10102064 

1314621 

1314621 

27774136 

7440666 

557346 

52628258 

1332076 

7699458 

3486359 

7646857 

557211 

7783495 

557415 

7779864 

7779886 

127822 

1314847 

16871719 

7733020 

Sulfuric acid, thallium(l) salt.. 

2-Amino-l-methyl benzene.. 

4-Amino-1-methyl benzene.. 

Benzene. 1.3.5-trinitro-. 

Vanadium pentoxide.. 

Vanadium(V) oxide.... 

F004 

The following spent non-halogenated solvents and 

the still bottoms from the recovery ol these 

solvents: (a) Cresols/Cresytic acid (b) 

Nitrobenzene 

F005.. 

Tne following spent non-halogenated solvents and 

the stitl bottoms trom the recovery of these 

solvents: (a) Toluene (b) Methyl ethyl ketone (c) 

Carbon disulfide (d) Isobutanol (e) Pyridine 

F020 

Wastes (except wastewater and spent carbon trom 

hydrogen chloride purification) from the 

production or manufacturing use (as a reactant. 

chemical intermediate, or component in a 

formulating process ) ot tri- or letrachloropehnol, 

or of intermediates used to produce their 

pesticide derivatives. TThis -listing does not 

inctude'Wastes'from the production ol 

'hexachlorophene from highly purified 2.4:5-

trichtorophenol.) 

1000 

r 

iiooo 

1000 

1* 

P115 

U328 

U353 

r 

5000 

5000 

1000 

1000 

1000 

1" 

1000 

5000 

1000 

5000 

1000 

5000 

10 

1000 

1000 

1000 

5000 

5000 

1000 

5000 

1000 

P120 

P120 

P122 

100 (45.4) 

1 * (0.454) 

1« (0.454) 

100 (45.4) 

100 (45.4) 

10 (4.54) 

10 (4.54) 

100 (45.4) 

100 (45.4) 

1000 (454) 

1000 (454) 

1000 (454) 

1000 (454) 

1000 (454) 

1000 (454) 

1000 (454) 

1000 (454) 

1000 (454) 

1000 (454) 

10 (4.54) 

1000 (454) 

1000 (454) 

1000 (454) 

1000 (454| 

5000 (2270) 

100 (45.4) 

5000 (2270) 

1000 (454) 

1O00» (454) 

100 (45.4) 

1 * (0.454) 
P.14 

Federal Register / Vol. 51, No. 188 / Monday, September 29, 1986 / Rules and Regulations 34545 

-•MM-_aMM_HM_H-aMH_a_M_HMU_ii_H_H*^^ 

TABLE 302.4 - LIST OF HAZARDOUS SUBSTANCES AND REPORTABLE QUANTITIES-Continued 

Hazardous Substance 

Wastes (except wastewater and spent carbon from 

hydrogen chloride purification) from the 

production or manufacturing use (as a reactant. 

chemical intermediate, or component in a 

formulating process ) of pentachlorophenol, or of 

intermediates used to produce its derivatives. 

f 

Wastes (except wastewater and spent carbon from 

hydrogen chloride purification) from the 

manufacturing use (as a reactant, chemical 

intermediate, or component in a formulating 

process ) of letra-, penta-, or 

hexachlorobenzenes under alkaline conditions. 

F023 

Wastes (except wastewater and spent carbon from 

hydrogen chloride purification) from the 

production of materials on equipment previously 

used for the production or manufacturing use (as 

a reactant, chemical intermediate, or component 

in a formulating process) of tri- and 

tetrachlorophenols . (This listing does not include 

wastes from equipment used only for the 

production or use of hexachlorophene from highly 

purified 2.4.5- trichlorophenol.) 

F026 

Wastes (except wastewater and spent carbon from 

hydrogen chloride purification) from the 

production of materials on equipment previously 

used for the manufacturing use (as a reactant, 

chemical intermediate, or component in a 

formulating process ) of tetra-, penta*, or 

hexachlorobenzene under alkaline conditions. 

Discarded unused formulations containing tri-, tetra-

, or pentachlorophenol or discarded unused 

formulations containing compounds derived from 

these chlorophenols. (This listing does not 

include formulations containing hexachlorophene 

synlhesized from prepurified 2,4,5-trichlorophenol 

as the sole component.) 

Residues resulting from the incineration or thermal 

treatment of soil contaminated with EPA 

Hazardous Waste Nos. F020, F02t, F022, F023, 

F026. and F027. 

K026 . 

Stripping still tails from the production of methyl 

ethyl pyridines 

K039.. 

Filter cake from the filtration of 

diethylphosphorodithioic acid in the production of 

phorate 

K046 

Wastewater treatment sludges from the 

manufacturing , formulation and loading of leadbased initiating compounds 

K052.. 

Tank bottoms (leaded) from the petroleum refining 

industry 

Decanter tank tar sludge from coking operations 

Product washwaters from the production of 

dinitrotoluene via nitration of toluene 

K112 

Reaction by-product water from the drying column 

in the production of toll enediamine via 

hydr >genation of dinitro oluene. 

Ki 13 

Condensed liquid tight enos from the purification of 

toluenediamine in the production of 

toluenediamine via hydrogenation ot 

dinitrotoluene. 

CASRN Regulatory Synonyms 

Statutory 

RQ Codet 

RCRA 

Waste 

Number 

F022 

K112 X 

Final RO 

Category 

Pounds(Kg) 

1 # (0.454) 

1 a (0.454) 

t # (0.454) 

1 # (0.454) 

1 # (0.454) 

1 * (0.454) 

1000 (454) 

10 (4.54) 

100 (45.4) 

10 # (4.54) 

100 (45.4) 

1 # (0.454) 

1# (0.454) 

1# (0.454) 

I ! 
P.15 

34546 Federal Register / Vol. 51, No. 188 / Monday, September 29, 1986 / Rules and Regulations 

TABLE 302.4 - LIST OF HAZARDOUS SUBSTANCES AND REPORTABLE QUANTITIES-Continued 

Hazardous Substance 

Vicinals from the purification of toluenediamine in 

the production of toluenediamine via 

hydrogenation of dinitrotoluene. 

K115 

Heavy ends from the purification of toluenediamine 

in the production ot toluenediamine via 

hydrogenatlon of dinitrotoluene. 

K116 

Organic condensate from the solvent recovery 

column in the production ol toluene diisocyanate 

via phosgenation ot toluenediamine. 

K117 

Wastewater from the reaction vent gas scrubber in 

the production of ethylene bromide via 

bromination of ethene. 

K118 

Spent absorbent solids Irom purification of ethylene 

dibromide in the production ot ethylene 

dibromide. 

K136 

Still bottoms trom the puhlication of ethylene 

dibromide in the production of ethylene dibromide 

via bromination of ethene. 

CASRN Regulatory Synonyms 

Statutory 

RO 

1* 

1* 

r 

r 

r 

r 

Codet 

4 

4 

4 

4 

4 

4 

RCRA 

Waste 

Number 

K114 

K115 

K116 

K117 

K118 

K136 

Final RQ 

Category 

X 

X 

X 

X 

X 

X 

Pound8(Kg) 

1» (0.454) 

1 * (0.454) 

1# (0.454) 

1# (0.454) 

13 (0.454) 

1» (0.454) 

t • indicates the statutory source as defined by 1, 2, 3, or 4 below 

t t - no reporting of releases of this hazardous substance is required if the diameter of tho pieces of the solid metal released is equal to or exceeds 100 micrometers (0.004 Inches) 

1 • indicates that the statutory source for designation of this hazardous substance under CERCLA is CWA Section 311(b)(4) 

2 - indicates that the statutory source for designation of this hazardous substance under CERCLA is CWA Section 307(a) 

3 - indicates that the statutory source for designation of this hazardous substance under CERCLA is CAA Section 112 

4 • indicates that the statutory source for designation of this hazardous substance under CERCLA is RCRA Section 3001 

1 * - indicates that the 1 -pound RO is a CERCLA statutory RQ 

*** - Iron dextran was designated as a hazardous substance under CERCLA solely because of its listing as a hazardous waste under Section 3001 of RCRA. The Agency recently 

proposed to delist iron dextran under RCRA(50 FR 46468-46470, November 8,1985). The Agency has also proposed to delist iron dextran from Table 302.4 of 40 CFR 302.4 and thereby 

remove Its designation as a CERCLA hazardous substance. 

**"* - Uranyl acetate and uranyl nitrate currently are being evaluated for their radioactive properties. Their ROs may be further adjusted in a future rulemaking adjusting the RQ of 

radionuclides. 

# - indicates that the RQ is subject to change when the assessment of potential carcinogenicity and/or chronic toxicity is completed 

APPENDIX A - SEQUENTIAL CAS REGISTRY 

NUMBER LIST OF CERCLA HAZARDOUS 

SUBSTANCES 

CASRN 

52686 

62384 

70304 

74873 

75003 

75047 

75150 

75503 

76017 

78002 

78795 

78886 

Hazardous Substance 

Trichlorfon 

Mercury, (acetalo-O)phenylPhenylmercuric acetate 

Hexachlorophene 

2,2'-Me thylenebis(3,4,6-trichlorophenol) 

Methane, chloroMethyl chloride 

Chloroethane 

Monoethylamine 

Carbon bisulfide 

Carbon disulfide 

Trimethylamine 

Ethane, pentachloroPentachloroethane 

Plumbane, tetraethylTetraethyl lead 

Isoprene 

2,3-Dlchloropropeno (isomer) 

APPENDIX A - SEQUENTIAL CAS REGISTRY 

NUMBER LIST OF CERCLA HAZARDOUS 

SUBSTANCES—Continued 

CASRN 

63329 

85018 

86737 

95487 

95534 

99354 

106445 

106490 

106514 

107493 

108394 

Hazardous Substance 

Acenaphthene 

Phenanthrene 

Fluorene 

o-Cresol 

o-Cresylic acid 

o-Toluidine 

2-Amino-1-methyl benzene 

Benzene. 1,3,5-trinitrosym-Trinitrobenzene 

p-Cresol 

p-Cresylic acid 

p-Toluidine 

4-Amino- 1-methyl benzene 

p-Benzoquinone 

1,4-Cyclohexadienodione 

Pyrophosphoric acid, tetraethyl ester 

Tetraethyl pyrophosphate 

m-Cresol 

m-Cresylic acid 

APPENDIX A - SEQUENTIAL CAS REGISTRY 

NUMBER LIST OF CERCLA HAZARDOUS 

SUBSTANCES—Continued 

CASRN 

108952 

109897 

110805 

110861 

120127 

124403 

127822 

129000 

133062 

191242 

206440 

208968 

298000 

Hazardous Substance 

Benzene, hydroxyPhonol 

Diethylamine 

Ethylene glycol monoethyl ether 

2-Ethoxyethanol 

Pyridine 

Anthracene 

Dimethylamine 

Methanamine, N-methylZinc phenolsulfonate 

Pyrene 

Captan 

Benzotghilperylene 

Benzolj.lO fluorene 

Fluoranthene 

Acenaphthylene 

Methyl parathion 

0.0-Dimethyl O-p-nitrophenyl phosphorothioate 
RA§_ 

Federal Register / Vol. 51, No. 188 / Monday, September 29, 1986 / Rules and Regulations 34547 

•^•--••H--^-_nB---<---<s_MBs_a--«-iE_aM_MHn_n_Kai_n_a^ 

APPENDIX A - SEQUENTIAL CAS REGISTRY 

NUMBER LIST OF CERCLA HAZARDOUS 

SUBSTANCES—Continued 

CASRN 

298022 

319868 

541093 

542756 

557211 

557346 

557415 

563122 

563688 

592858 

592870 

608935 

628864 

630104 

815827 

I066304 

1072351 

1314325 

1314621 

1314847 

1314870 

1319773 

1332076 

1333831 

1341497 

3486359 

6533739 

7428480 

7439921 

7440280 

7440360 

7440508 

7440666 

7446084 

7446142 

7446166 

Hazardous Substance 

Phorate 

Phosphorodithioic acid, 0,0-diethyl S-(ethylthio) 

methyl ester 

delta - BHC 

Uranyl acetate 

Propene. 1,3-dichloro1,3-Dichloropropene 

Zinc cyanide 

Zinc acetate 

Zinc formale 

Ethion 

Acetic acid, thallium(l) salt 

Thallium(l) acetate 

Mercuric thiocyanate 

Lead thiocyanate 

Benzene, pentachloroPentachlorobenzene 

Fulminic acid, mercury(ll) salt 

Mercury fulminate 

Carbamimidoselenoic acid 

Selenourea 

Cupric tartrate 

Chromic acetate 

Lead stearate 

Thallic oxide 

Thallium(lll) oxide 

Vanadium pentoxide 

Vanadium(V) oxide 

Zinc phosphide 

Lead sulfide 

Cresol(s) i 

Cresylic acid 

Zinc borate 

Sodium bifluoride 

Ammonium bifluoride 

Zinc carbonate 

Carbonic acid, dithallium(l) salt 

Thallium(l) carbonate 

Lead stearate 

Lead 

Thallium 

Antimony 

Copper 

Zinc 

Selenium dioxide 

Selenium oxide 

Lead sulfate 

Sulfuric acid, thallium(l) salt 

Thallium(l) sulfate 

APPENDIX A - SEQUENTIAL CAS REGISTRY 

NUMBER LIST OF CERCLA HAZARDOUS 

SUBSTANCES—Continued 

CASRN 

7447394 

7632000 

7646857 

7664417 

7699458 

7733020 

7758954 

7758987 

7779864 

7779886 

7782492. 

7783008 

7783064 

7783359 

7783462 

7783495 

7791120 

6003198 

9004664 

10031591 

10045940 

10049055 

10099748 

10101538 

10101630 

10102064 

10102188 

10102451 

10415755 

12039520 

13814965 

15739807 

16871719 

26952238 

27774136 

52628258 

52652592 

56189094 

Hazardous Substance 

Cupric chloride 

Sodium nitrite 

Zinc chloride 

Ammonia 

Zinc bromide 

Zinc sulfate 

Lead chloride 

Cupric sulfate 

Zinc hydrosulfite 

Zinc nitrate 

Selenium 

Selenious acid 

Hydrogen sulfide 

Hydrosulfuric acid 

Sulfur hydride 

Mercuric sulfate 

Lead fluoride 

Zinc fluoride 

Thallium(l) chloride 

Dichloropropane - Dichloropropene (mixture) 

Ferric dextran 

Iron dextran 

Sulfuric acid, thallium (I) salt 

Thallium(l) sulfate 

Mercuric nitrate 

Chromous chloride 

Lead nitrate 

Chromic sulfate 

Lead iodide 

Uranyl nitrate 

Sodium selenite 

Thallium{l) nitrate 

Mercurous nitrate 

Thallium(l) selenide 

Lead fluoborate 

Lead sulfate 

Zinc silicofluoride 

Dichloropropene(s) 

Vanadyl sulfate 

Zinc ammonium chloride 

Lead stearate 

Lead stearate 

3. Section 302.5 is revised to read as 

follows: 

§ 302.5 Determination of reportable 

quantities. 

(a) Listed hazardous substances. The 

quantity listed in the column "Final RQ" 

for each substance in Table 302.4 is the 

reportable quantity for that substance. 

(b) Unlisted hazardous substances. 

Unlisted hazardous substances 

designated by 40 CFR 302.4(b] have the 

reportable quantity of 100 pounds, 

except for those unlisted hazardous 

wastes which exhibit extraction 

procedure (EP) toxicity identified in 40 

CFR 261.24. Unlisted hazardous wastes 

which exhibit EP toxicity have the 

reportable quantities listed in Table 

302.4 for the contaminant on which the 

characteristic of EP toxicity is based. 

The reportable quantity applies to the 

waste itself, not merely to the toxic 

contaminant. If an unlisted hazardous 

waste exhibits EP toxicity on the basis 

of more than one contaminant, the 

reportable quantity for that waste shall 

be the lowest of the reportable 

quantities listed in Table 302.4 for those 

contaminants. If an unlisted hazardous 

waste exhibits the characteristic of EP 

toxicity and one or more of the other 

characteristics referenced in 40 CFR 

302.4(b), the reportable quantity for that 

waste shall be the lowest of the 

applicable reportable quantities. 

40 CFR Part 117 is amended as 

follows: 

PART 117—DETERMINATION OF 

REPORTABLE QUANTITIES FOR 

HAZARDOUS SUBSTANCES 

4. The authority citation for Part 117 

continues to read as follows: 

Authority: Sees 311 and 501(a), Federal 

Water Pollution Control Act (33 U.S.C. 1251 et 

seq), and Executive Order 11735. 

5. Section 117.3 is amended by 

revising Table 117.3 to read as follows: 

§ 117.3 Determination of reportable 

quantities. 

Table 117.3—Reportable Quantities of 

Hazardous Substances 

Note—The first number under the column 

headed "RQ" is the reportable quantity in 

pounds. The number in parentheses is the 

metric equivalent in kilograms. For 

convenience, the table contains a column 

headed "Category" which lists the code 

letters "X", "A", "B", "C", and "D" 

associated with reportable quantities 1.10. 

100.1000. and 5000 pounds, respectively. 
P.17 

34548 Federal Register / Vol. 51, No. 188 / Monday. September 29. 1986 / Rules and Regulations 

TABLE 117.3 - REPORTABLE QUANTITIES 

OF HAZARDOUS SUBSTANCES 

NOTE: The lirst number under the column headed "RQ" Is 

the reportable quantity in pounds. The number in parentheses is the metric equivalent in kilograms. For convenience, 

the table contains a column headed "Category" which lists 

Ihe code letters "X", "A". "B", "C". and "D" associated 

with reportable quantities of t, 10, 100, 1000 and 5000 

pounds respectively. 

Acetaldehyde 

Acetic acid 

Acetic anhydride _ 

Acetone cyanohydrin „ 

Acetyl bromide 

Acetyl chloride 

Acrolein 

Acrylonitrile 

Adipic acid 

Aldrin „ 

Allyl alcohol 

Allyl chloride 

Aluminum sulfate 

Ammonia 

Ammonium acetate _ 

Ammonium benzoate 

Ammonium bicarbonate 

Ammonium bichromate 

Ammonium bifluoride 

Ammonium bisulfite 

Ammonium carbamate 

Ammonium carbonate.... 

Ammonium chloride 

Ammonium chromate 

Ammonium citrate 

Ammonium fluoborate 

Ammonium fluoride 

Ammonium hydroxide 

Ammonium oxalate — 

Ammonium silicofluoride 

Ammonium sulfamate 

Ammonium sulfide 

Ammonium sulfite 

Ammonium tartrate 

Ammonium thiocyanate -

Ammonium thiosulfate 

Amyl acetate _ 

Aniline 

Antimony pentachloride 

Antimony potassium tartrate.. 

Antimony tribromide _ 

Antimony trichloride 

Antimony trifluoride 

Antimony trioxide „ 

Arsenic disulfide 

Arsenic pentoxide 

Arsenic trichloride 

Arsenic trioxide 

Arsenic trisulfide 

Barium cyanide 

Benzene 

Benzoic acid..... ..... 

Benzonitrile 

Benzoyl chloride 

Benzyl chloride 

Beryllium chloride 

Beryllium fluoride 

Beryllium nitrate 

Butyl acetate... 

Butylamine 

n-Butyl phthalate 

Butyric acid 

Cadmium acetate 

Cadmium bromide 

Cadmium chloride 

Calcium arsenate _.... 

Calcium arsenite 

Calcium carbide.._ 

Calcium chromate 

Calcium cyanide — 

Calcium 

dodecylbenzenesulfonate. 

Calcium hypochlorite...-

Captan 

Carbaryl 

Carbofuran 

Carbon disulfide _ 

Carbon tetrachloride._ 

Chlordane 

Chlorine . 

Chlorobenzene 

Chloroform 

Chlorosutfonic acid... 

Category 

C 

D 

D 

A 

D 

O 

X 

B 

D 

X 

B 

C 

0 

B 

D 

D 

O 

c 

B 

O 

D 

D 

D 

C 

O 

O 

B 

C 

D 

C 

D 

B 

0 

O 

O 

O 

O 

D 

C 

B 

C 

c 

c 

c 

D 

O 

O 

O 

D 

A 

C 

D 

D 

C 

B 

D 

O 

D 

0 

C 

A 

D 

8 

B 

B 

C 

C 

A 

C 

A 

C 

A 

A 

B 

A 

8 

O 

X 

A 

B 

D 

C 

RQ in pounds 

(Kilograms) 

1,000 (454] 

5,000 (2,2701 

5,000 (2,270; 

10 (4.54; 

5,000 (2,2701 

5.000 (2,270; 

1 (0.454; 

100 (45.4 

5,000 (2,270; 

1 (0.454] 

100 (45.4 

1.000 (454 

5,000 (2.270, 

100 (45.4 

5,000 (2,270; 

5,000 (2,270] 

5.000 (2.270; 

1,000 (454 

100 (45.4 

5.000 (2,270; 

5,000 (2,270; 

5,000 (2,270; 

5,000 (2,270; 

1.000(454 

5.000 (2,270; 

5,000 (2,270; 

100 (45.4; 

1.000 (454; 

5.000 (2,270 

1.000 (454; 

5,000 (2,270; 

100 (45.4, 

5.000 (2,270; 

5,000 (2,27ff 

5,000 (2,270; 

5.000 (2.270; 

5,000 (2,270; 

5,000 (2.270; 

1,000 (454 

100 (45.4 

1,000 (454] 

1.000 (454 

1,000 (454; 

1,000 (454] 

5.000 (2,270 

5,000 (2,270 

5,000 (2.270J 

5,000 (2,270 

5.000 (2,270 

10 (4.54] 

1.000 (454 

5,000 (2^70; 

5,000 (2,270] 

1.000 (454 

100 (45.4 

5,000 (2,270 

5,000 (2.270 

5,000 (2,270 

5.000 (2.270 

1,000 (454 

10 (4.54 

5,000 (2,270 

100 (45.4 

100 (45.4 

100 (45.4 

1,000 (454 

1,000 (454 

10 (4.54; 

1,000 (454; 

10 (4.54 

1,000 (454 

10 (4.54] 

10 (4.54; 

100 (45.4] 

10 (4.54] 

100 (45.4] 

5.000 (2.270] 

1 (0.454] 

10 (4.54] 

100 (45.4] 

5.000 (2.270) 

1,000 (454; 

TABLE 117.3 - REPORTABLE QUANTITIES 

OF HAZARDOUS SUBSTANCES—Continued 

NOTE: The first number under the column headed "RQ" is 

the reportable quantity in pounds. The number in parentheses is the metric equivalent in kilograms. For convenience, 

the table contains a column headed "Category" which lists 

the code letters "X", "A", "B", "C", and "D" associated 

with reportable quantities of 1, 10, 100, 1000 and 5000 

pounds respectively. 

Chlorpyrifos 

Chromic acetate 

Chromic acid 

Chromic sulfate 

Chromous chloride 

Cobaltous bromide 

Cobaltous formate 

Cobaltous sullamate 

Coumaphos 

Cresol 

Crotonaldehyde 

Cupric acetate 

Cupric acetoarsenite 

Cupric chloride 

Cupric nitrate 

Cupric oxalate 

Cupric sulfate 

Cupric sulfate ammoniated 

Cupric tartrate 

Cyanogen chloride 

Cyclohexane 

2,4-D Acid 

2,4-D Esters 

DDT 

Diazinon 

Dicamba 

Dichlobenil 

Dichlone 

Dichlorobenzene 

Dichloropropane 

Dichloropropene 

DichloropropeneDichloropropane Mixture. 

2,2-Dichloropropionic acid 

Dichlorvos 

Dieldrin 

Diethylamine 

Dimethylamine 

Oinitrobenzene 

Dinitrophenol 

Dinitrotoluene 

Diquat 

Disulfoton 

Diuron 

Dodecylbenzenesulfonic acid.. 

Endosulfan 

Endrin 

Epichlorohydrin 

Ethion 

Ethylbenzene 

Ethylenediamine 

Ethylene dibromide 

Ethylene dichloride 

EDTA 

Fenic ammonium citrate 

Ferric ammonium oxalate 

Ferric chloride 

Ferric fluoride 

Ferric nitrate 

Ferric sulfate 

Ferrous ammonium sulfate 

Ferrous chloride 

Ferrous sulfate 

Formaldehyde 

Formic acid 

Fumaric acid 

Furfural 

• Guthion 

Heptachlor 

Hexachlorocyclopentadiene 

Hydrochloric acid 

Hydrofluoric acid 

Hydrogen cyanide , 

Hydrogen sulfide , 

Isoprene 

Isopropanolamine 

dodecylbenzenesulfonate. 

Kelthane 

Kepone 

Lead acetate 

Lead arsenate 

Lead chloride 

Lead fluoborate 

Category 

X 

C 

C 

C 

C 

C 

C 

C 

A 

C 

B 

B 

B 

A 

B 

B 

A 

B 

B 

A 

C 

B 

B 

X 

X 

C 

B 

X 

B 

C 

B 

B 

D 

A 

X 

B 

C 

B 

A 

C 

C 

X 

B 

C 

X 

X 

C 

A 

C 

D 

C 

D 

D 

C 

C 

C 

6 

C 

C 

C 

B 

c 

C 

D 

D 

O 

X 

X 

X 

D 

B 

A 

B 

B 

C 

A 

X 

D 

D 

B 

8 

RO in pounds 

(Kilograms) 

1 (0.454) 

1,000 (454) 

1,000 (454) 

1,000 (454) 

1,000 (454) 

1,000 (454) 

1.000 (454) 

1,000 (454) 

10 (4.54) 

1.000 (454) 

100 (45.4) 

100 (45.4) 

100 (45.4) 

10 (4.54) 

100 (45.4) 

100 (45.4) 

10 (4.54) 

100 (45.4) 

100 (45.4) 

10 (4.54) 

1,000 (454) 

100 (45.4) 

100 (45.4) 

1 (0.454) 

1 (0.454) 

1,000 (454) 

100 (45.4) 

1 (0.454) 

100 (45.4) 

1,000 (454) 

100 (45.4) 

100 (45.4) 

5.000 (2,270) 

10 (4.54) 

1 (0.454) 

100 (45.4) 

1.000 (454) 

100 (45.4) 

10 (4.54) 

1.000 (454) 

1.000 (454) 

1 (0.454) 

100 (45.4) 

1,000 (454) 

1 (0.454) 

1 (0.454) 

1,000 (454) 

10 (4.54) 

1,000 (454) 

5,000 (2,270) 

1.000 (454) 

5,000 (2,270) 

5,000 (2.270) 

1,000 (454) 

1.000 (454) 

1.000 (454) 

100 (45.4) 

1,000 (454) 

1,000 (454) 

1,000 (454) 

100 (45.4) 

1.000 (454) 

1.000 (454) 

5,000 (2.270) 

5,000 (2.270) 

5.000 (2,270) 

1 (0.454) 

1 (0.454) 

1 (0.454) 

5,000 (2.270) 

100 (45.4) 

10 (4.54) 

100 (45.4) 

100 (45.4) 

1,000 (454) 

10<4.54) 

1 (0.454) 

5,000 (2.270) 

5,000 (2,270) 

100 (45.4) 

100 (45.4) 

TABLE 117.3 - REPORTABLE QUANTITIES 

OF HAZARDOUS SUBSTANCES—Continued 

NOTE: The first number under the column headed "RO" is 

the reportable quantity in pounds. The number in parentheses is the metric equivalent in kilograms. For convenience, 

the table contains a column headed "Category" Which lists 

the code letters "X", "A". "B", "C", and "D" associated 

with reportable quantities of 1, 10. 100, 1000 and 5000 

pounds respectively. 

Lead fluoride 

Lead iodide 

Lead nitrate 

Lead stearate 

Lead sulfate 

Lead sulfide 

Lead thiocyanate 

Lindane 

Lithium chromate.. 

Malathion 

Maleic acid 

Maieic anhydride 

Mercaptodimethur 

Mercuric cyanide 

Mercuric nitrate 

Mercuric sulfate 

Mercuric thiocyanate 

Mercurous nitrate 

Melhoxychlor 

Methyl mercaptan 

Methyl methacrylate 

Methyl parathion 

Mevinphos 

Mexacarbate , 

Monoethylamine . 

Monomethylamine 

Naled 

Naphthalene 

Naphthenic acid 

Nickel ammonium sulfate 

Nickel chloride 

Nickel hydroxide 

Nickel nitrate 

Nickel sulfate 

Nitric acid 

Nitrobenzene 

Nitrogen dioxide 

Nitrophenol 

Nitrotoluene 

Paraformaldehyde 

Parathion 

Pentachlorophenol 

Phenol 

Phosgene 

Phosphoric acid 

Phosphorus 

Phosphorus oxychioride 

Phosphorus pentasulfide 

Phosphorus trichloride 

Polychlorinated biphenyls 

Potassium arsenate 

Potassium arsenite 

Potassium bichromate 

Potassium chromate . 

Potassium cyanide 

Potassium hydroxide 

Potassium permanganate 

Propargite 

Propionic acid 

Propionic anhydride 

Propylene oxide 

Pyrethrins 

Quinoline 

Resorcinol 

Selenium oxide 

Silver nitrate 

Sodium 

Sodium arsenate 

Sodium arsenite 

Sodium bichromate 

Sodium bifluoride 

Sodium bisulfite 

Sodium chromate 

Sodium cyanide 

Sodium 

dodecylbenzenesullonate. 

Sodium fluoride 

Sodium hydrosulfide 

Sodium hydroxide 

Sodium hypochlorite 

Sodium methylate 

Sodium nitrite 

Sodium phosphate, dibasic... 

Category 

B 

B 

B 

D 

8 

D 

8 

X 

C 

B 

D 

D 

A 

X 

A 

A 

A 

A 

X 

8 

C 

8 

A 

C 

8 

B 

A 

B 

B 

0 

D 

C 

0 

D 

C 

C 

A 

B 

C 

C 

X 

A 

C 

A 

O 

X 

C 

B 

C 

A 

C 

c 

C 

c 

A 

C 

B 

A 

0 

D 

8 

X 

D 

D 

A 

X 

A 

C 

C 

C 

B . 

D 

C 

A 

C 

c 

D 

C 

B 

C 

B 

D 

RO in pounds 

(Kilograms) 

100 (45.4) 

100 (45.4) 

100 (45.4) 

5.000 (2,270) 

100 (45.4) 

5.000 (2,270) 

100 (45.4) 

1 (0.454) 

1,000 (454) 

100 (45.4) 

5.000 (2.270) 

5.000 (2,270) 

10 (4.54) 

1 (0.454) 

10 (4.54) 

10 (4.54) 

10 (4.54) 

10 (4.54) 

1 (0.454) 

100 (45.4) 

1.000(454) 

100 (45.4) 

10 (4.54) 

1,000 (454) 

100 (45.4) 

100 (45.4) 

10 (4.54) 

100 (45.4) 

100 (45.4) 

5.000 (2,270) 

5.000 (2.270) 

1,000 (454) 

5.000 (2.270) 

5,000 (2,270) 

1,000 (454) 

1.000 (454) 

10 (4.54) 

100 (45.4) 

1,000 (454) 

1,000 (454) 

1 (0.454) 

10 (4.54) 

1.000 (454) 

10 (4.54) 

5,000 (2.270) 

1 (0.454) 

1,000 (454) 

100 (45.4) 

1,000 (454) 

10 (4.54) 

1,000 (454) 

1,000(454) 

1,000 (454) 

1,000 (454) 

10 (4.54) 

1.000 (454) 

100 (45.4) 

10 (4.54) 

5.000 (2.270) 

5,000 (2,270) 

100 (45.4) 

1 (0.454) 

5.000 (£270) 

5,000 (2,270) 

10 (4.54) 

1 (0.454) 

10 (4.54) 

1,000 (454) 

1.000 (454) 

1.000 (454) 

100 (45.4) 

5,000 (2.270) 

1,000(454) 

10(4.54) 

1.000 (454) 

1.000 (454) 

5,000 (2.270) 

1.000 (454) 

100 (45.4) 

1.000 (454) 

100 (45.4) 

5.000 (2.270) 
P.18 

Federal Register / Vol. 51, No. 188 / Monday, September 29, 1986 / Rules and Regulations 34D4 9 

TABLE 117.3 - REPORTABLE QUANTITIES 

OF HAZARDOUS SUBSTANCES—Continued 

NOTE: The fiis. number under the column headed "RO" is 

the reponabte quantity in pounds. The number in parentheses is the metric equivalent in Kilograms. For convenience, 

the table contains a column headed "Category" which lists 

the code letters "X", "A", "B", "C", and "D" associated 

with reportable quantities of 1, 10. 100. 1000 and 5000 

pounds respectively. 

Sodu.m phosphate, tribasic 

Sodium selenite 

Strontium chromate 

Stychnine 

St>rene 

Sulfuric acid 

Sulfur monochtoride 

2,4,5-T acid 

2.4,5-T amines 

2,4.5-T esters 

2,4.5-T salts 

TDE 

2.4,5-TP acid 

2.4.5-TP acid esters 

Tetraethyl lead 

Tetraethyl pyrophosphate... 

Thallium sulfate 

Toluene 

Toxaphene 

Trichlorfon 

Category 

RQ in pounds 

(Kilograms) 

5.000 (2,270) 

100 (45.4) 

1,000 (454) 

10 (4.54) 

1.000 (454) 

1.000 (454) 

1.000 (454) 

1,000 (454) 

5.000 (2,270) 

1,000 (454) 

1.000(454) 

1 (0.454) 

100 (45.4) 

100 (45.4) 

10 (4.54) 

10 (4.54) 

100 (45.4) 

1.000 (454) 

1 (0.454) 

100 (45.4) 

TABLE 117.3 - REPORTABLE QUANTITIES 

OF HAZARDOUS SUBSTANCES—Continued 

NOTE: The first number under the column headed "RQ" is 

the reportable quantity in pounds. The number in parentheses is the metric equivalent in kilograms. For convenience, 

the table contains a column headed "Category" which lists 

the code letters "X". "A", "B". "C". and "D" associated 

with reportable quantities of 1, 10, 100, 1000 and 5000 

pounds respectively. 

Trichloroethylene 

Trichlorophenol 

Triethanolamine 

dodecylbenzenesulfonate. 

Triethylamine 

Trimethylamine 

Uranyl acetate 

Uranyl nitrate 

Vanadium pentoxide 

Vanadyl sulfate 

Vinyl acetate 

Vinylidene chloride 

Xylene 

Xylenol 

Zinc acetate 

Zinc ammonium chloride 

Zinc borate 

Zinc bromide 

Zinc carbonate 

Zinc chloride 

Category RQ in pounds 

(Kilograms) 

1.000 (454) 

10 (4.54) 

1.000 (454) 

5,000 (2.270) 

100 (45.4) 

100 (45.4) 

100 (45,4) 

1,000 (454) 

1,000 (454) 

5,000 (2.270) 

5,000 (2.270) 

1.000 (454) 

1.000 (454) 

1.000 (454) 

1,000 (454) 

1.000 (454) 

1.000 (454) 

1.000 (454) 

1.000 (454) 

TABLE 117.3 - REPORTABLE QUANTITIES 

OF HAZARDOUS SUBSTANCES—Continued 

NOTE: The first number under the column headed "RQ" (3 

the reportable quantity in pounds. The number in parentheses is the metric equivalent in kilograms. For convenience, 

the table contains a column headed "Category" which lists 

the code letters "X" "A", "B". "C", and "D" associated 

with reportable quantities of 1, 10, 100, 1000 and 5000 

pounds respectively. 

Material 

Zirconium potassium fluoride 

Category 

' A 

C 

C 

C 

C 

D 

B 

D 

C 

D 

C 

D 

D 

RO in pounds 

(Kitograrrs) 

10 (4.54) 

1.000 (454) 

1,000 (454) 

1.000(454) 

1,000 (454) 

5,000 (2.270) 

100 (45.4) 

5.000 (2.270) 

1.000 (454) 

5,000 (2,270) 

1,000 (454) 

5.000 (2,270) 

5.000 (2.270) 

[FR Doc. 86-19709 Filed 9-26-66; 8:45 am] 

BILLING COOE 6560-50-M