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Internal SFUND Box Number 35 OF 283 

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

/02eQ'MO'i-'2-

Thursday 

April 4, 1985 

Part II 

Environmental 

Protection Agency 

40 CFR Parts 117 and 302 

Notification Requirements; Reportable 

Quantity Adjustments; Final Rule and 

Proposed Rule 
P.3 

13456 Federal Register / Vol. 50, No. 65 / Thursday, April 4, 1985 / Rules and Regulations 

ENVIRONMENTAL PROTECTION 

AGENCY 

40 CFR Parts 117 and 302 

[SW H-FRL 2665-6(b)] 

Notification Requirements; Reportable 

Quantity Adjustments 

AGENCY: 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 immediately notify the 

National Response Center of the release. 

Section 102(b) sets a reportable quantity 

of one pound for hazardous substances, 

except those for which reportable 

quantities have been established 

pursuant to section 311(b)(4) of the 

Clean Water Act ("CWA"). 

Section 102(a) authorizes the 

Environmental Protection Agency 

("EPA")'to adjust reportable quantities 

for hazardous substances 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. This final 

rule adjusts many of the reportable 

quantities established in section 102(b). 

These reportable quantity adjustments 

are intended to reduce the burdens of 

reporting on the regulated community, 

allow EPA to focus its resources on the 

most serious releases, and protect public 

health and welfare and the environment 

more effectively. This rule also 

designates, under section 102(a) all 

substances listed under the various 

statutory provisions referenced in 

section 101(14) of CERCLA. This rule 

also revises reportable quantities 

established pursuant to section 311(b)(4) 

of the Clean Water Act for discharges of 

hazardous substances into navigable 

waters, so that the CWA section 311 

reportable quantities will be identical to 

and therefore consistent with those 

promulgated under CERCLA. 

To help implement these changes, 

today's rule clarifies requirements for 

notifying the National Response Center 

of a release of a hazardous substance in. 

a quantity equal to or greater than its 

reportable quantity. The toll-free 

telephone number of the National 

Response Center is listed under 

"ADDRESSES." 

EFFECTIVE DATE: July 3, 1985. 

CERCLA section 305 provides for a 

legislative veto of regulations 

promulgated under CERCLA. Although 

INS v. Chadha, 462 U.S. 919,103 S. Ct. 

2764 (1983), cast doubt on the validity of 

the legislative veto, EPA has transmitted 

a copy of this regulation to the Secretary 

of the Senate and the Clerk of the House 

of Representatives. If any action by 

Congress calls the effective date of this 

regulation into question, the Agency will 

publish a notice of clarification^in the 

Federal Register. 

ADDRESSES: The toll-free telephone 

number of the National Response Center 

is (800) 424-8802; in the Washington, 

D.C. metropolitan area (202) 426-2675. 

The record supporting this rulemaking 

is available for public inspection at 

Room S-325, U.S. Environmental 

Protection Agency, 401 M Street SW, 

Washington, D.C. 20460 (Docket Number 

102RQ). The docket may be inspected 

between 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, Response 

Standards and Criteria Branch, 

Emergency Response Division (WH548B), U.S. Environmental Protection 

Agency, 401 M Street, SW, 

Washington D.C. 20460, 

or the 

RCRA/Superfund Hotline (800) 424-

9346, in Washington, D.C, (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 

C. Organization of the Final Rule 

II. Summary of Changes From the Proposed 

Rule 

III. Issues Addressed in the Notice of 

Proposed Rulemaking But Not Resolved 

in This Rule 

A. Continuous Releases 

B. Federally Permitted Releases 

C. Radionuclide RQs 

D. Carcinogen RQs 

IV. Notification 

A. Introduction 

B. Purposes and Mechanics of Notification 

C. Persons Covered by This Rule 

D. Releases Covered by This Rule 

E. Exemptions From the CERCLA 

Notification Requirements 

F. Duplicate Reporting 

G. Regulatory Consistency 

H. Penalties 

V. Reportable Quantity Adjustments 

A. Introduction 

B. Number of Reportable Quanity Levels 

and Their Values 

C. Methodology Used To Adjust Reportable 

Quantities 

D. Criteria Used To Adjust Reportable 

Quantities 

E. Future RQ Adjustments 

F. Application of the Methodology and 

Criteria 

G. Summary of RQ Changes From the May 

25,1983 NPRM 

H. Retention of Statutory RQ for Methyl . 

Isocyanate 

I. Table 302.4 

VI. Reportable Quantity Adjustments Under 

Section 311 of the Clean Water Act 

VII. Summary of Supporting Analyses 

A. Classification and Regulatory Impact 

Analysis 

B. Regulatory Flexibility Analysis 

C. Information Impact Analysis 

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., 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" by 

reference to other environmental 

statutes (section 101(14)); this list 

currently contains 698 substances. The 

Environmental Protection Agency 

("EPA") may designate additional 

hazardous substances (section 102). 

The Act requires the person in chargeof a vessel or facility to notify the 

National Response Center ("NRC") 

immediately when there is a release of a 

designated hazardous substance in an 

amount equal to or greater than the 

reportable quantity ("RQ") for that 

substance (sections 103(a) and (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 

Federal Water Pollution Control Act 

("Clean Water Act" or "CWA"). Section 

102 authorizes EPA to adjust all of these 

reportable quantities. 

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 rapid 

response to protect public health and 

welfare and the environment. Under the 

Act, the federal government may 

respond whenever there is a release or a 

substantial threat of a release into the 

environment of a hazardous substance 

or of other pollutants or contaminants 

which may present an imminent and 
P.4_ 

Federal Register / Vol. 50, No. 65 / Thursday, April 4. 1985 / Rules and Regulations 1M57 

substantial danger to public health or 

welfare (section 104). Response 

activities are to be taken, to the extent 

possible, in accordance with the 

National Contingency Plan (40 CFR Part 

300), which was originally developed 

under the CWA and which has been 

revised to reflect the responsibilities and 

authority created by CERCIA. EPA 

emphasizes that notification based on 

reportable quantities is merely a trigger 

for informing the government of a 

release so that the appropriate federal 

personnel can evaluate the need for a 

federal response action and undertake 

any necessary response (removal or 

remedial action) in a timely fashion. 

Reportable quantities serve no other 

purpose; for example, a reportable 

quantity need not be released before a 

claim for damages or cleanup costs may 

be filed against the Hazardous 

Substance Response Trust Fund. 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 -will not necessarily pose a 

hazard to public health or welfare or the 

environment. Government personnel 

will assess each release on a case-bycase basis. 

B. Background of This Rulemaking 

On May 25,1983, EPA proposed a rule 

(48 FR 23552) to clarify procedures for 

reporting releases and to adjust 

reportable quantities for 387 of the 698 

CERCLA hazardous substances. That 

Notice of Proposed Rulemaking (NPRM) 

also listed, for the first time, the 

"hazardous substances" designated by 

section 101(14) of CERCLA. The NPRM 

discussed in detail the CERCLA 

notification provisions (including the 

persons required to notify the NRC of a 

release, the substances for which 

notification is required, the types of =* 

releases subject to the notification 

requirements, and the exemptions from 

these requirements), the methodology 

and criteria used to adjust the 

reportable quantity levels, and the RQ 

adjustments proposed under section 102 

of CERCLA and under section 311 of the 

CWA. That same day, EPA also 

published an Advance Notice of 

Proposed Rulemaking (ANPRM) 

concerning the designation of hazardous 

substances in addition to those specified 

in section 101(14) of the Act (48 FR 

23602). In response to requests, and to 

increase the public's opportunity to . 

express its opinion on the NPRM and 

ANPRM, the original 60-day comment 

period for both notices was extended by 

30 days, so that the comment period 

closed on August 25,1983. EPA received 

136 comment letters totalling over 1,000 

pages; these comments represent the 

first formal statements of public opinion 

on the methodology developed for 

adjusting RQs, the actual RQ 

adjustments proposed, and various 

issues relating to notification. A 

summary of the comments received, 

together with the Agency's responses, is 

contained in the Responses to 

Comments on the Notice of Proposed 

Rulemaking on the Adjustment of 

Reportable Quantities ["Responses to 

Comments"], which is available for 

inspection at Room S-325, U.S. 

Environmental Protection Agency, 401 M 

Street, SW, Washington, D.C. 20460. 

Today, the Agency is promulgating 

RQ adjustments and clarifications of 

reporting procedures. The RQs of 340 

CERCLA hazardous substances 

(including 21 hazardous waste streams) 

are adjusted in this final rule. Today's 

Federal Register also contains an NPRM 

proposing RQ adjustments for 105 of the 

remaining 358 hazardous substances. All 

of these adjustments apply not only to 

CERCLA RQs, but to RQs established 

pursuant to section 311(b)(4) of the 

CWA. In preparing the filial rule, EPA 

has carefully considered all of the public 

comments submitted on the proposals 

made in the May 25,1983 NPRM. 

Section II of this preamble notes the 

significant differences between today's 

rule and the NPRM and refers the reader 

to the detailed discussion of each 

change elsewhere in the preamble. 

Section HI presents issues raised in the 

NPRM that are not resolved in today's 

rule. Sections IV, V, and VI discuss the 

operation of the rule, major public 

comments, and the Agency's responses 

to these comments. Section VII provides 

a summary of the analyses supporting 

the rule. 

As was stated in the preamble to the 

proposed rule, other provisions of the 

Act may be applicable even where 

notification is not required. Therefore, 

nothing in this preamble or final rule 

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 is liable for the costs of 

cleaning up that release and for any 

natural resource damages, even if the 

release is not subject to the notification 

requirements of sections 103 (a) and {b). 

Similarly, claims may be filed against 

the Hazardous Substance Response 

Trust Fund for cleanup costs and 

damages even if less than a reportable 

quantity has been released. Moreover, 

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 

governmental agencies from taking 

response actions under section 104, 

seeking reimbursement from responsible 

parties under section 107, or pursuing an 

enforcement action against responsible 

parties. Note also that this rule does not 

affect hazardous substance reporting 

requirements imposed by certain other 

regulations and statutes. (See, e.g., the 

discussion of MARPOL 73/78 and TSCA 

section 8(e) in section IV.G. below.) 

This final rule formally designates 

those substances which are listed under 

the statutes referred to in section 

101(14). Substances listed under the 

Solid Waste Disposal Act, commonly 

known as the Resource Conservation 

and Recovery Act ("RCRA"J, will now 

be "hazardous substances" under 

CERCLA, regardless of whether they are 

hazardous wastes under RCRA. This 

final rule does not otherwise address the 

designation of hazardous substances 

which are not already 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 the May 25.1983 

ANPRM invited public comment. EPA 

has carefully reviewed the comments 

received and is in the process of further 

developing its designation'policy. The 

Agency's designation policy will be the , 

subject of a separate rulemaking. 

C. Organization of the Final Rule 

Today's final rule amends 40 CFR by 

adding Part 302. Section 302.1 describes 

the fourfold purpose of the new 

regulation, including (1) listing those 

substances designated as hazardous 

under section 101(14) of CERCLA; (2) 

identifying reportable quantities for 

these substances; (3) describing the 

notification requirements for releases of 

these substances; and (4) identifying 

reportable quantities for hazardous 

substances that were.previously 

assigned RQs under section 311(b)(4) of 

the Clean Water Act. 

Section 302.2 explains the 

abbreviations used in the rule. Section • 

302.3 defines the following terms: 

1. "The Act," "CERCLA," and 

"Superfund" 

2. "Administrator" 

3. "Consumer product" . 

4. "Environment" 

5. "Facility" 

6. "Hazardous substance" 

7. "Hazardous waste" 

8. "Navigable waters" 
P.5 

13458 .Federal Register /- Vol. 50, No. 65 / Thursday, April 4, 1985 / Rules and Regulations 

9. "Offshore facility" 

10. "Onshore facility" 

11. "Person" 

12. "Release" 

13. "Reportable quantity" 

14. "United States" 

15. "Vessel" 

Section 302.4 includes Table 302.4, 

which lists the substances designated as 

hazardous under section 101(14) (and 

now section 102) of CERCLA together 

with the RQ established for each 

substance. Section. 302.4 also denotes 

the conditions whereby a solid waste 

not specifically listed as a hazardous 

substance can still be a hazardous 

substance if it exhibits any of certain 

characteristics. Section 302.5 provides 

that each quantity listed as the "Final 

RQ" in Table 302.4 is the reportable 

quantity for that listed hazardous 

substance. Section 302.5 also presents 

the RQs for unlisted hazardous wastes. 

Section 302.6 incorporates the statutory 

requirement that any person in charge of 

a vessel or facility must immediately 

notify the NRC whenever he or she has 

knowledge of any release of a 

hazardous substance from the vessel or 

facility in a quantity equal to or greater 

than the RQ; it also provides rules for 

determining when notification is 

required for releases of (1) mixtures or 

solutions that contain hazardous 

substances, and (2) releases of massive 

forms of metals. Section 302.7 

incorporates by reference the statutory 

penalties for failure to notify the NRC of 

hazardous substance releases that equal 

or exceed the RQs. Today's rule also has 

an appendix that lists each hazardous 

substance in Chemical Abstracts 

Service Registry Number (CASRN) 

order. 

Finally, this rule revises 40 CFR 117.3 

to make the CWA RQs equal to those 

shown in Table 302.4 of 40 CFR 302.4, 

II. Summary of Changes From the 

Proposed Rule 

.EPA has made the following changes 

from the proposed rule. Each change is 

discussed in detail in the preamble 

section noted. 

1. Wastes classified as hazardous 

under RCRA that are properly delisted, 

deleted, or exempted by a state 

pursuant to an approved state program 

shall not be considered hazardous 

substances for purposes of CERCLA 

notification requirements so long as they 

do not contain any other listed CERCLA 

substances (see section IV.D.l.b.). 

2. A supplement to Table 302.4 that 

lists CERCLA hazardous substances in 

CASRN order has been added as an 

appendix to today's rule to help users 

identify hazardous substances (see 

section IV.D.l.d.). 

3. The exemption from notification 

requirements of releases of metal where 

the diameter of the particles of metal 

equals or exceeds 100 micrometers 

(0.004 inches) now appears both as a 

footnote to Table 302.4 and as part of 40 

CFR 302.6 (see section IV.D.l.f.). 

4. Proper disposal of hazardous 

substances in interim status facilities or 

facilities with final permits under RCRA 

need not be reported under CERCLA 

(see section IV.D.2.a.). 

5. The rule for determining when 

notification is required for releases of 

mixtures and solutions containing 

hazardous substances is now stated in 

40 CFR 302.6 (see section IV.D.3.b.). 

6. "[NJormal application of pesticides" 

is no longer defined in 40 CFR 302.3; 

instead, the preamble interprets the 

statutory phrase "application of 

pesticides" (see section IV.E.). 

7. The specific penalties imposed by 

CERCLA Section 103(b) no longer 

appear in 40 CFR 302.7(a); instead, the 

section incorporates the statutory 

penalties by reference (see section 

IV.H.). 

8. Language has been added to the 40 

CFR 302.5(b) discussion of "Unlisted 

Hazardous Substances" to emphasize: 

(1) that the 100-pound RQ for unlisted 

hazardous wastes applies only to 

substances which are wastes prior to 

their initial release; and (2) that the RQ 

given in Table 302.4 for unlisted wastes 

that exhibit EP toxicity applies to the 

waste itself, not merely to the toxic 

contaminant (see sections IV.D.l. and 

V.F.4.). 

9. Various RQ changes have been 

made (see section V.G.). 

10. Retention 6i statutory RQ for 

methyl isocyanate (see section V.H.). 

11. Various other changes have been 

made in Table 302.4 (see sections V.G. 

through V.I.). 

III. Issues Addressed in the NPRM But 

Not Resolved in This Rule 

A. Continuous Releases 

Section 103(f)(2) of CERCLA exempts 

certain releases from the general 

notification requirements of CERCLA if 

they are "continuous," "stable in 

quantity and rate," and notification has 

been given either under sections 103(a) 

and (b) "for a period sufficient to 

establish the continuity, quantity, and 

regularity" of the release or under 

section 103(c) (which relates to 

notification of the existence of certain 

facilities that are or have been used for 

storage, treatnjent, or disposal of 

hazardous wastes). Notification of 

continuous releases must be given 

"annually, or at such time as there is 

any statistically significant increase'"in 

the quantity of the hazardous substance 

being released. 

In the May 25,1983 NPRM, EPA 

requested comment on the types of 

releases that could qualify for the 

section 103(f)(2) exemption and on 

possible notification systems for such 

releases. Many comments on these 

issues were received. Due to the 

complexity of the issues involved, the 

Agency has decided to study the 

continuous release exemption further; 

today's rule does not resolve continuous 

release issues. 

B. Federally Permitted Releases 

One of the exemptions from section 

103 reporting requirements is for 

"federally permitted releases." The 

definition of "federally permitted 

release" in CERCLA section 101(10) 

specifically identifies releases permitted 

under other environmental'statutes. 

In the NPRM, EPA explained the 

Agency's interpretation of each of the 

types of releases exempted by the 

definition of "federally permitted 

release." EPA received many comments 

on various aspects of the federally 

permitted release exemption, most of 

which urged a broader interpretation of 

one or more of the federally permitted 

releases. Due to the complexity of the 

issues involved, the Agency has decided 

to study the scope of this exemption 

further; today's rule does not resolve the 

"federally permitted release" issue. 

C. Radionuclide RQs 

Radionuclides are hazardous 

substances under CERCLA because they 

are designated as hazardous air 

pollutants under section 112 of the Clean 

Air Act. The NPRM noted that EPA is 

considering several issues for future 

adjustments to radionuclide RQs. Two 

major related issues are: 

-41) The units the Agency should use to 

measure RQs; and 

(2) Whether one RQ should be set for 

all radionuclides or whether different 

RQs for specific radionuclides should be 

used. 

EPA received many comments on these 

issues. Today's final rule does not adjusi 

the RQ for radionuclides; the issue is 

being evaluated for action in a future 

rulemaking. Until then, the one-pound 

(0.454 kilogram) RQ' is applicable. As 

noted in the NPRM, the Agency 

recognizes that the pound or kilogram is 

not a suitable unit on which to base a 

notification requirement for 

radionuclides, because releases much 

smaller than one pound may pose a 

significant threat to public health or 

welfare or the environment. The Agency 

encourages releasers to report 
P.6 

Federal Register / Vol. 50, No. 65 / Thursday, April 4, 1985 / Rules and Regulations 13459 

^mmta^Km^KaMl^umii^^^mK^Mmmm^mm^^BMma^BMma^ima^m^nmmm^mmm^^mw^^^mDK^^Bamm—m^^mmm^aM^m^m^*m^^mmmmm^^mamm—mW 

radionuclide releases of less than one 

pound. 

D. Carcinogen RQs 

The May 25,1983 NPRM noted that 

the Agency has been collecting and 

evaluating data on the relative activity 

of substances as potential carcinogens. 

The methodology for adjusting RQs on 

the basis of potential carcinogenicity 

will be presented for public comment in 

a future rulemaking, and adjusted RQs 

for potentially carcinogenic substances 

will be proposed at that time. Until these 

substances receive final adjusted RQs, 

their statutory RQs will apply. 

The NPRM published elsewhere in 

today's Federal Register proposes 

adjusted RQs for 12 substances that 

were evaluated as potential carcinogens 

but for which EPA's Carcinogen 

Assessment Group (CAG) did not find' 

any sound evidence of potential 

carcinogenicity. 

IV. Notification 

A. Introduction 

CERCLA sections 103 (a) and (b) 

require any person in charge of an 

offshore or onshore facility or a vessel 

to report to the National Response 

Center as soon as he or she has 

knowledge of any release of a 

hazardous substance that is equal to or 

greater than the reportable quantity. In 

the preamble to the May 25,1983 NPRM, 

EPA elaborated on the notification 

requirements established by CERCLA, 

addressing such issues as the mechanics 

of notification, the persons required to 

notify the NRC of a release, the 

substances for which notification is 

required, the types of releases subject to 

the notification requirements, the 

exemptions from these requirements, 

and duplicate reporting. The following 

sections discuss comments received on 

these and other notification issues. 

B. Purposes and Mechanics of 

Notification 

Notification based on RQs serves as a 

trigger for informing the government of a 

release so that the need for response 

can be evaluated andany necessary 

response undertaken in a timely fashion. 

Federal personnel will evaluate all 

reported releases, although the 

government will not necessarily respond 

to all reported releases with a removal 

or remedial action. The reportable 

quantities do not themselves represent 

any determination that releases of a 

particular quantity are actually harmful 

to public health or welfare or the 

environment. 

Reporting of releases pursuant to 

CERCLA sections 103 (a) and (b) is to be 

made by telephone to the National 

Response Center. The toll-free number 

of the NRC is (800) 424-8802; in the 

Washington, D.C. metropolitan area the 

number is (202) 426-2675. Pursuant to 

the National Contingency Plan (NCP) (40 

CFR Part 300), the duty officer at the 

NRC will record pertinent information 

about the release and relay this release 

information directly to an On-Scene 

Coordinator ("OSC") at either the 

relevant EPA regional office or the 

relevant U.S. Coast Guard district office. 

The OSC will then evaluate the 

circumstances of the release, give 

pertinent information to appropriate 

state and local officials, and decide 

whether and in what manner the federal 

government should respond to the 

release. 

A few commenters stated that it is a 

misuse of time and money to report 

releases which do not result in a federal 

removal or remedial action; they argued 

that the probability of a federal 

response action should be an important 

consideration in designing the 

notification system. EPA disagrees. The 

government is not obligated to respond 

to every release to which it has 

authority to respond and therefore 

should not design a notification system 

on such a basis. Reportable quantities 

have been established so that the 

Agency is alerted promptly to situations 

that may warrant a government 

response. While EPA will not initiate a 

removal or remedial action for every 

release that is reported, EPA must 

obtain the information it needs to 

determine who has response authority, 

to assess whether there is a need for a 

federal response action, and to check 

that action is properly taken by others 

where appropriate. 

C. Persons Covered by This Rule 

The NPRM preamble considered the 

issue of which persons are required to 

notify the NRC of a release. In so doing, 

definitions of the key terms of the 

CERCLA notification requirements were 

presented. Responses to the major 

comments received are provided below. 

1. Facility 

Several-commenters discussed the 

Agency's statement that "for notification 

purposes, EPA will consider the entire 

contiguous plant or installation and 

contiguous grounds under common 

ownership to be the reporting facility 

rather than each vent, pipe, or piece of 

equipment at such a plant" (48 FR 

23553). Some of the commenters 

appeared to misinterpret EPA's 

intentions. 

The Agency intended the statement to 

reflect its belief that numerous 

concurrent releases (releases occurring 

within the same 24-hour period) of the 

same hazardous substance from one 

contiguous plant or installation need not 

be reported individually, but should be 

reported in a single notification. This 

policy will avoid unnecessary and 

burdensome calls where a plant is 

experiencing more than one reportable 

release, because it allows the regulated 

community to consider multiple 

concurrent releases of the same 

substance as one release for reporting 

purposes. 

The comments received favored this 

policy, although a few commenters 

suggested that EPA expand the 

definition of facility to include outdoor 

areas within the boundary of a plant. In 

addition, some commenters questioned 

whether a releaser must aggregate the 

total volume of concurrent releases in 

order to determine if a reportable 

quantity has been met or exceeded. 

-The "facility" from which a release 

has entered or may enter into the 

•environment does not include outdoor 

areas. Rather, the definition of 

"environment" includes all outdoor (i.e., 

not completely enclosed) areas 

surrounding and within a given facility. 

All concurrent releases of the same 

substance from a particular facility into 

the environment must be aggregated to 

determine if an RQ has been exceeded. 

Releases from separate facilities, 

however, need not be aggregated. EPA 

intends for multiple concurrent releases 

of the same substance from a single 

facility to be reportedln a single 

notification as a single release. Where 

multiple concurrent RQ releases are 

occurring at various parts of a 

contiguous plant or installation on 

contiguous grounds under common 

ownership (e.g., at a chemical 

manufacturing plant or an oil refinery), 

the person in charge should also report 

these multiple concurrent releases in a 

single notification. The policy of 

consolidating notifications also applies 

to concurrent releases from separate 

storage facilities, so long as the releases 

are at the same location, i.e., located on 

contiguous grounds under common 

ownership. 

2. Person In Charge 

The NPRM preamble discussion of 

"person in charge" stated that EPA 

would not seek to designate the specific 

individuals or positions within business 

entities who would be responsible for 

reporting hazardous substance releases. 

The Agency indicated that such 

decisions are better made by the 

management of the affected 

organization. Two commenters argued 
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Federal Register / Vol. 50, No. 65 / Thursday, April 4, 1985 / Rules and Regulations 

that the lack of a clear definition of 

"person in charge" would result in 

responsible individuals being unaware 

of their duty to report releases and 

would lead to delayed reporting or 

failure to report. EPA was urged to 

define explicitly the term "person in 

charge." 

EPA disagrees with these 

commenters. The proper assignment of 

reporting responsibilities depends on the 

specific operation involved, 

management structure, and other casespecific considerations. It would be 

unnecessary and unwise for the 

government to try to determine "persons 

in charge" at all entities affected by 

CERCLA. 

D. Releases Covered by This Rule 

The NPRM addressed the substances 

for which notification is required, the 

types of releases subject to the 

notification requirements, and the 

determination of when a reportable 

quantity has been released. Many 

comments were received on various 

topics under each of these issues. 

1. Hazardous Substances Subject to This 

Rule 

a. ICRE Substances. Any hazardous 

waste having the characteristics 

identified or listed pursuant to Section 

3001 of the Solid Waste Disposal Act 

(commonly known as the Resource 

Conservation and Recovery Act, or 

"RCRA"), but not including any waste 

the regulation of which has been 

suspended by Act of Congress, is 

considered a hazardous substance under 

section 101(14)(C) of CERCLA. These 

characteristics are commonly known as 

ICRE: ignitability, corrosivity, reactivity, 

and extraction procedure toxicity (see 

40 CFR 261.21-261.24). 

The obligation to report releases to 

the environment of substances 

exhibiting the characteristics of 

ignitability, corrosivity, or reactivity has 

been the subject of some confusion.' 

Under section 103(a) of CERCLA, 

persons in charge of a vessel or facility 

must notify the NRC qf the release of a 

"hazardous substance." The term 

"hazardous substance" includes all 

substances designated in § 302.4 of 

today's rule as well as wastes exhibiting 

the ICR characteristics under RCRA. 

Therefore, the release of a nondesignated substance exhibiting an ICR 

characteristic is the release of a 

hazardous substance only if the 

' Substances exhibiting Ihe characteristic of 

extraction procedure (EP) toxicity are not at issue 

here, because the chemicals at which the EP toxicity 

test is aimed are all specifically designated as 

hazardous under Section 302.4 of today's regulation. 

substance is a waste. If a nondesignated ICR substance is spilled and 

immediately cleaned up for repackaging, 

reprocessing, recycling, or reuse, it is not 

a waste and the spill need not be 

reported (see 45 FR 78540, Nov. 25,1980). 

However, if the substance is not cleaned 

.up, or is cleaned up for eventual 

disposal, it is then a waste (and thus a 

hazardous substance) which has been 

released to the environment and must be 

reported if it exceeds the RQ. 

The Agency acknowledges that the 

proposed rulemaking may not have been 

clear on this point. Accordingly, we are 

publishing elsewhere in today's Federal 

Register a proposal to set the RQ at 100 

pounds for non-designated substances 

which are not wastes prior to their 

initial release but which exhibit an ICR 

characteristic. 

Pending completion of final 

rulemaking on that proposal, notice 

given to the NRC pursuant to 49 CFR 

171.15, if required under that section, of 

the release of a non-designated 

substance that is not a waste prior to its 

initial release, will be deemed to satisfy 

the reporting requirements of section 

103(a) of CERCLA. Note that this policy 

does not apply to the release of nondesignated substances which exhibit an 

ICR characteristic and which are wastes 

prior to their initial release. Such 

releases must be reported if they are 

equal to or in excess of the 100-pound 

RQ. Section 302.5(b) of today's final rule" 

has been clarified to show the 

distinction between substances that are 

wastes prior to their initial release and 

substances that become wastes after 

their initial release. 

b. State Delisting under RCRA. 

Several commenters disagreed with 

EPA's statement in the NPRM that 

reporting is required even for releases of 

hazardous waste which the state has 

properly delisted, deleted, or exempted 

from the state's RCRA program pursuant 

to authority granted by EPA. Upon 

further review of the RCRA regulations 

governing "delisting" of RCRA 

hazardous wastes, EPA has decided to 

alter its policy. Under 40 CFR 260.22, a 

person may petition for a regulatory 

amendment to exclude a waste at a 

particular generating facility from the 

lists of hazardous wastes in §§ 261.30-

261.33. The petitioner must demonstrate 

that the waste produced by the 

particular facility does not meet any of 

the criteria under which the waste type 

was listed or characterized as a 

hazardous waste. Moreover, if granted, 

the exclusion applies only to the waste 

generated at the individual facility 

covered by the petitioner's 

demonstration. State RCRA regulations 

must be substantially equivalent to 

these federal regulations to obtain EPA 

approval of the state program. 

Once a specific waste from a 

particular facility has been shown not to 

contain constituents or exhibit 

characteristics that are considered 

hazardous under RCRA, there appears 

to be no reason to require notification 

under CERCLA of a release of the 

exempted waste.-By definition, 

exempted wastes lack the hazardous 

constituents or characteristics for which 

the waste type was listed as hazardous. 

Therefore, so long as a state-exempted 

waste does not contain any other listed 

CERCLA substances, EPA will not 

consider the exempted waste subject to 

CERCLA notification requirements. 

c. Petroleum Exclusion. As defined in 

CERCLA section 101(14), the term 

"hazardous substance" under CERCLA 

does not include 

petroleum, including crude oil or any fraction 

thereof which is not otherwise specifically 

listed or designated as a hazardous 

substance under subparagraphs (A) through 

(F) of this paragraph, and the term does nol 

include natural gas, natural gas liquids, 

liquefied natural gas, or synthetic gas usable 

for fuel (or mixtures of natural gas and such 

synthetic gas). 

Some commenters raised questions 

about the limits of the exclusion of 

petroleum from the definition of 

hazardous substance. EPA interprets the 

petroleum exclusion to apply to 

materials such as crude oil, petroleum 

feedstocks, and refined petroleum 

products, even if a specifically listed or 

designated hazardous substance is 

present in such products. However, EPA 

does not consider materials such as 

waste oil to which listed CERCLA 

substances have been added to be 

within the petroleum exclusion. 

Similarly, pesticides are not within the 

petroleum exclusion, even though the 

active ingredients of the pesticide may 

be contained in a petroleum distillate; 

when an RQ of a listed pesticide is 

released, the release must be reported. 

d. Nomenclature. The May 25,1983 

NPRM requested comments on several 

options for a nomenclature system that 

would be most useful for the 

promulgated list of CERCLA hazardous 

substances. The first option was that 

actually employed in Table 302.4 as it 

appeared in the NPRM, i.e., the names of 

the substances as they appear in the 

environmental statutes (and 

implementing regulations) that are 

incorporated in the CERCLA definition 

of a hazardous substance. A second 

alternative presented was to use only 

the Chemical Abstracts Collective Index 

System name, and a third was to list the 
P.8 

Federal Register / Vol. 50. No. 65 / Thursday, April 4, 1985 / Rules an d Regulations 13461 

major synonyms for-each hazardous 

substance. 

Five commenters recommended use of 

the names provided by the Chemical 

Abstracts Service (CAS) in the Chemical 

Abstracts Collective Index System. 

Although use of the Collective Index 

names would avoid much of the 

confusion involved with using synonyms 

and would serve as positive 

identification of the material, many of 

the individuals who may need to report 

releases will not have easy access to 

Collective Index names for the . 

substances under their control. Even 

among professional chemists, CAS 

Collective Index names are not yet 

widely used. For example, the term 

"chloroform" remains widely preferred 

over the Collective Index name 

"methane.'tri chloro-." 

Several commenters recommended 

listing the "major" synonyms for each 

substance, pointing out that most 

individuals who must report releases are 

not chemists and therefore are familiar 

with the substance only by the name 

provided by the supplier. The 

commenters stated that the potential 

releaser cannot be expected to 

determine whether the substance he is 

dealing with is a CERCLA hazardous 

substance unless the name provided is 

also on the CERCLA list 

The Agency recognizes that listing 

major synonyms would, in some 

respects, simplify determining whether a 

particular named chemical is a 

hazardous substance. However, as 

several commenters pointed out, the 

difficulties involved in making such a 

list would be great. For some of the 

substances, more than 80 synonyms 

might be necessary, making Table 302.4 

very unwieldy. The length of the table 

would be increased by a factor of at 

least five, increasing die difficulty of 

finding a named material on the list 

Moreover, the choice of synonyms to be 

included would still be subjective, and 

constant updates would be needed as 

omitted names were found. 

The names of the CERCLA hazardous 

substances that appeared in Table 302.4 

are those that are already familiar to the 

regulated community under other 

statutes. The Agency has therefore 

determined that, in today's final rule, 

Table 302.4 will contain the same names 

as were listed in the NPRM, plus any 

other names not previously discovered 

by which a substance is identified in the 

other statutes listed in section 101{14) 

and their implementing regulations. 

Several commenters suggested that in 

addition to the list of names in Table 

302.4, a supplementary list in CAS 

Registry Number order be provided. 

EPA has adopted this suggestion. The 

CAS Registry Number, when available, 

uniquely identifies the designated 

hazardous substance. Such a list 

appears as an appendix to the rule as a 

convenience to the regulated 

community. 

e. Generic Classes of Organic and 

Metallic Compounds. EPA decided not 

to establish RQs for the many broad 

generic classes of organic and metallic 

compounds designated as toxic 

pollutants under section 307(a) of the 

Clean Water Act, such as "chlorinated 

phenols," "phthalate esters," 

"polynuclear aromatic hydrocarbons," 

and "zinc and compounds." The 

majority of the commenters who 

addressed this issue understood and 

supported this decision. It was 

recognized that to establish a single RQ 

for broad classes of hazardous 

substances would be inappropriate for 

many of the compounds within each 

class. Many of the generic classes of 

compounds encompass hundreds or 

even thousands of specific compounds. 

It would be virtually impossible for the 

Agency to develop a reportable quantity 

for a generic class of compounds that 

would take into account the varying 

characteristics of all of the specific 

compounds in the class. To .establish 

reportable quantities for generic groups 

of chemicals would conflict with 

existing knowledge of individual 

chemicals and their properties. 

Several commenters were unsure of 

the Agency's position on reporting and 

liability for generic classes. These 

commenters believed that if no other RQ 

is established foT a generic class, then 

they must still use the statutory one 

pound RQ established under CERCLA 

section 102(b). EPA has determined that 

the notification requirements need apply 

only to those specific compounds for 

which RQs are listed in Table 302.4, 

rather than to the generic -classes of 

compounds. However, as the Agency 

indicated in the NPRM preamble, this 

does not preclude liability with respect 

to releases of specific compounds which 

are within one of these generic listings 

but which are not listed in Table 302.4. 

In other words, a releaser is liable for 

the cleanup of releases of hazardous 

substances which fall under any of the 

broad, generic classes, but does not 

have to report such releases when the 

specific compounds, and hence the RQs, -

are not listed in Table 302.4. 

/. Massive Forms of Metals. EPA 

proposed that it would not require 

notification of releases of massive forms 

of the twelve solid metals originally 

listed under CWA section 307{aJ when 

the diameter of the pieces of metal 

released equals or exceeds 100 

micrometers {0.004 inches). Eleven -of 

fourteen commenters supported this 

approach, while three commenters 

suggested a smaller cutoff leveL One of 

these commenters suggested that the 

cutoff be set at 10 micrometers rather 

than 100 micrometers, consistent with 

standards developed pursuant to the 

Occupational Safety and Health Ac t 

The cutoff size was deliberately set 

ten times larger than the maximum size 

considered by EPA to be respirable dust 

to ensure that releases containing small 

particles of metals would result in 

notification to the NRC The Agency has 

determined that the 100-micrometer 

cutoff is sufficiently small to be the 

particle size below which notification of 

release of an RQ is required. The 

primary purpose of notification is to 

ensure that releasers notify the 

government so that the government, 

pursuant to the NCP, can assess the 

need to respond to the release. Although 

it is extremely unlikely that a release of 

solid metal particles of 100 micrometers 

or larger would require a response, the 

Agency wants to be notified of releases 

of smaller particles because, under some 

circumstances, releases of metal 

particles in the 10- to 100-micrometer 

range may require a response. 

One of the eleven commenters 

supporting the 100-micrometer cutoff 

level suggested that this policy be more 

prominently displayed in the wording of 

the final rule. (In the NPRM. the 100-

micrometer limitation appeared only as 

a footnote to Table 302.4J 40 CFR 302.6 

now states: 

Notification of the release of an RQ of solid 

particles of enGmony, arsenic, beryllium, 

cadmium, chromium, copper, lead, nickel, 

selenium, silver, thallium, or zinc is not 

required if the mean diameter of the particles 

released is larger than 100 micrometers (0.004 

inches}. 

A particle larger than 100 micrometers 

in diameter will not pass through an 

American Society for Testing and 

Materials standard 140-mesh sieve. 

2. Definition of Releases Subject to This 

Rule 

a. Disposal of Hazardous Substances 

in RCRA Facilities. The May 25,1983 

NPRM discussion of the term "release" 

did not specify whether the term 

included or excluded the proper disposal 

of hazardous substances at a disposal 

facility that has been accorded interim 

status or that has received a final permit 

under RCRA. Some commenters 

suggested clarification of the meaning of 

the term in this regard. 

EPA agrees that disposal of hazardous 

substances at a disposal facility in 

accordance with EPA regulations is not 

subject to CERCLA notification 
13462 Federal Register / Vol. 50, No. 65 / Thursday, April 4, 1985 / Rules and Regulations 

P.9 

provisions. Where the disposal of 

wastes into permitted or interim status 

facilities is properly documented 

through the RCRA manifest system and 

RCRA regulations are followed, 

notification under CERCLA does not 

provide a significant additional benefit, 

so long as the facility is in substantial 

compliance with all applicable 

regulations and permit conditions. 

Where the disposer knows that the 

facility is not in substantial compliance, 

disposal of an RQ of a hazardous 

substance must be reported to the NRC. 

Of course, spills and accidents occurring 

during disposal that result in releases of 

reportable quantities of hazardous 

substances must also be reported to the 

NRC. 

b. Releases "Into the Environment." A 

key element of the definition of 

"release" is the phrase "into the 

environment." As defined in CERCLA 

section 101(22), a hazardous substance 

must be released "into the environment" 

in a reportable quantity before 

notification of the release is required 

under CERCLA. Thus, the distinction 

between the "facility" (or "vessel") from 

which a substance is released and the 

"environment" into which a substance 

passes is the determining factor in 

requiring notification. 

Hazardous substances may be 

released "into the environment" even if 

they remain on plant or installation 

grounds. Examples of such releases are 

spills from tanks or valves onto concrete 

pads or into lined ditches open to the 

outside air, releases from pipes into 

open lagoons or ponds, or any other 

discharges that are not wholly contained 

within buildings or structures. Such a 

release, if it occurs in a reportable 

quantity (e.g., evaporation of an RQ into 

the air from a dike or concrete pad), 

must be reported under CERCLA. On the 

other hand, hazardous substances may 

be spilled at a plant or installation but 

not enter the environment, e.g., when the 

substance spills onto the concrete floor 

of an enclosed manufacturing plant. 

Such a spill would need to be reported 

only if the substance were in some way 

to leave the building or structure in a 

reportable quantity. (Note, however, 

that the federal government may still 

respond and recover costs where there 

is a threatened release into the 

environment.) 

Most of the commenters on this issue 

agreed with EPA's position that the 

distinction between "facility" and 

"environment" is central to determining 

when notification is required'and that a 

release "into the environment" is a 

reportable event, but they disagreed 

with EPA on when a release reaches the 

environment. The most common 

suggestion was to exclude from the 

definition of "environment" all of the 

grounds surrounding a facility that are 

controlled by the facility's owners or 

operators. Several commenters 

suggested that reporting should not be 

required as long as the facility operators 

are in control of released substances 

and initiate swift and adequate response 

efforts to prevent the environment from 

being endangered, consistent with 

prudent management practices. It was 

also suggested that so long as a release 

remains on facility property it would be 

inaccessible to the public and thus 

would not be a public hazard. 

. While EPA recognizes and 

appreciates the caution exercised by the 

majority of handlers of hazardous 

substances, accepting this redefinition 

of "environment" would be inconsistent 

both with the broad definition of 

environment in CERCLA section 101(8) 

and with the purpose of reporting. A 

primary function of CERCLA is to 

ensure that the government is made 

aware of any potentially serious release 

of a hazardous substance, so that the 

government has the opportunity to 

determine whether and how it needs to 

act. To exclude releases occurring near 

handling and storage facilities from 

CERCLA notification requirerrients 

would keep the federal government 

unaware of a very common form of 

release that may require government 

action. Releases onto the grounds 

surrounding a plant can migrate off-site 

through ground water or through release 

into the air. Defining "environment" to 

begin at the property line of a 

manufacturing plant or other installation 

is thus unacceptable to the Agency. 

Following this same reasoning, 

defining environment in terms of public 

access, as several commenters 

suggested, is also unacceptable. Lack of 

public access to the site of a release 

• does not preclude adverse effects on _ 

public health or welfare or the 

environment from the release. The 

volatilization of substances or their 

migration via ground water are obvious 

examples of how releases can travel offsite and threaten adjacent areas. EPA 

does not believe a reinterpretation of 

when a release enters the environment 

is necessary. A release into the 

environment will be reportable whether 

or not it remains on the grounds of a 

facility site. 

One commenter requested that EPA 

clarify the meaning of the term "ambient 

air" in the definition of "environment" 

provided in 40 CFR Section 302.3. For 

the purposes of CERCLA, "ambient air" 

shall refer to the air that is not 

completely enclosed in a building or 

structure and that is over and around 

the grounds of a facility.2 A release into 

the air of a building or structure that 

does not reach the ambient air (either 

directly or via a ventilation system) is 

not a reportable event under CERCLA. 

c. "WorkplaceExposure"Exclusion. 

CERCLA section 101(22) excludes from 

the definition of release "any release 

which results in exposure to persons 

solely within a workplace, with respect 

to a claim which such persons may 

assert against the employer of such 

persons." In the May 25,1983 NPRM 

preamble, EPA stated that the 

workplace exclusion was apparently 

intended to restrict the potential scope 

of third-party actions for personal 

injuries under the Act and that the 

limitation of hazardous substance 

exposure to persons within a workplace 

is not relevant in determining whether 

notification is appropriate. 

Several commenters argued that the 

workplace exposure exclusion should be 

applied to workplace releases for 

purposes of CERCLA notification 

requirements. EPA disagrees. By its 

terms, the exclusion applies only to 

claims compensable through workers' 

compensation. The availability of 

workers' compensation does not appear 

to have any relation to the need for 

reporting of hazardous substance 

releases that threaten public health or 

welfare or the environment. While 

Congress intended to bar payment of 

Superfund monies to persons covered by 

workers' compensation systems, the 

legislative history clearly indicates that 

Congress did not intend to exclude all 

workplace releases of hazardous 

substances from CERCLA reporting 

requirements and response authorities. 

"For example, if a release occurring 

solely within a workplace created a 

hazard of damage to human life or to the 

environment, it is contemplated that the 

Fund would have the authority to 

respond with all of its authorities except 

for compensating workers whose 

employers are liable for their injuries 

under worker's compensation law" (S. 

Rep. 848, 96th Cong., 2d Sess. 94 (1980)). 

Thus, the need for notification must be 

determined by whether or not a release 

from a CERCLA "facility" or "vessel" 

"The Agency's interpretation of "ambient air" for 

CERCLA reporting purposes differs from the 

definition of ambient air in the regulations 

promulgated pursuant to the Clean Air Act (CAA). 

These regulations define ambient air with reference 

to public access (see 40 CFR 50.1(e)). EPA believes 

that the CAA definition is inappropriate for 

CERCLA purposes, because the point of release for 

some potentially serious releases may be 

inaccessible to the general public, e.g., on privat'-

property. 
P.10 

Federal Register / Vol. 50, No. 65 / Thursday, April 4, 1985 / Rules and Regulations 13463 

enters "into the environment." If a 

release does not remain wholly 

contained within a building or structure, 

then it is a release into the environment 

for CERCLA purposes, whether or not it 

occurs within a workplace. 

3. Determination of When a Reportable 

Quantity Has Been Released 

Once it has been determined that a 

hazardous substance release is covered 

by CERCLA, the releaser must 

determine if the release is in a quantity 

equal to or greater than the reportable 

quantity of that substance. Two critical 

issues in making this determination are 

the period'of release and the application 

of RQs to mixtures and solutions. This 

section discusses EPA's positions on 

these issues and responds to comments 

received on the NPRM. 

a. Period of Release. EPA proposed to 

use a 24-hour period for measuring 

whether the reportable quantity of a 

substance has been released, noting that 

the 24-hour period has been used 

successfully under regulations 

implementing the CWA section 311. As 

soon as'the person in charge knows that 

the amount of a release within that. 

period equals or exceeds the applicable 

reportable quantity, the NRC must be 

notified. Eleven commenters concurred 

with the Agency's decision to use the"24-

hour period, citing the consistency of the 

decision with the CWA section 311 

regulations. 

Three commenters misinterpreted the 

purpose of the 24-hour period as the 

time a person has in which to establish 

the knowledge that a release has 

occurred. EPA wants to clarify that 

when the amount of a CERCLA 

hazardous substance release equals or 

exceeds the reportable quantity, the 

person in charge, once he or she knows 

of the release, must immediately notify 

the National Response Center. The 24-

hour period refers to the period within 

which a reportable -quantity of a 

hazardous substance must be released 

for the release to be considered 

reportable; it does not refer to the time 

available for a person to report a 

release. Such reporting must occur 

immediately. 

b. Mixtures of Hazardous Substances. 

When determining if notification is 

required for releases of mixtures and 

solutions containing hazardous 

substances, the Agency intends to apply 

the mixture rule developed in 

connection with the CWA section 311 

regulations. This rule provides that 

"[djischarges of mixtures and solutions 

are subject to these regulations only 

where a component hazardous 

substance ofthe mixture or solution is 

discharged in a quantity equal to or 

greater than its RQ" (44 FR 50767. 

August 29,1979]. RQs of different 

substances are not additive under the 

mixture rule, so that spilling a mixture 

containing half an RQ of one hazardous 

substance and half an RQ of another 

hazardous substance does not require a 

report. 

Most commenters supported using the 

CWA mixture rule. These commenters 

agreed with EPA that it is generally. 

technically appropriate to consider the 

RQs of component hazardous 

substances of a mixture individually 

when determining if a report is required. 

They also note that applying the CWA 

mixture rule to CERCLA hazardous 

substances would allow the regulated 

community to continue with existing 

monitoring and notification procedures. 

One commenter opposed use of the 

CWA mixture rule, arguing that EPA has 

no data to support the implicit 

assumption that toxic effects are not 

additive or synergistic. The commenter 

stated that additive or synergistic effects 

often occur. 

EPA recognizes that the toxic effects 

of chemical mixtures may in some 

instances be additive, synergistic, or 

even antagonistic. Unfortunately, only 

limited data exist on the extent of such 

effects. Moreover, trying to incorporate 

such data into the mixture rule for 

CERCLA notification purposes would 

make the determination of whether an 

RQ had been released much more 

complex and confusing. The RQ would 

vary with each mixture, depending on 

whether the components of the mixture 

had additive, synergistic, or antagonistic 

effects. Thus, a different RQ would have 

to be determined for each potential 

release situation, a highly complex 

approach that EPA has consistently 

tried to avoid (see section V.C.2. below). 

To be effective, the CERCLA notification 

system must be simple to administer 

and apply. For this reason, the Agency 

will apply the CWA mixture rule— 

contained in § 302.6 of today's rule—to 

releases*subject to CERCLA reporting 

requirements. 

Several commenters were uncertain 

when to apply the mixture rule to the 

various RCRA regulated wastes {F and 

K lists) and to the unlisted ICRE wastes. 

The Agency emphasizes that for 

CERCLA purposes, the CWA mixture 

rule applies to ICRE wastes and to the 

RCRA F and K waste streams (all of 

which tend to be mixtures), if the 

concentrations of all the hazardous 

substances in tiie waste are known. If 

the concentrations of the substances are 

unknown, the RQ of the waste stream or 

unlisted waste applies. In addition, if the 

person in chaige knows that an RQ of a 

hazardous constituent of a waste has 

been released before the RQ for the 

waste stream or unlisted waste has been 

exceeded, he or she must report the 

release. However, CERCLA does not 

itself impose any testing reqirements. 

Some commenters objected to 

application of the CWA mixture rule to 

waste streams, arguing that underreporting could result if the components 

of the waste were incorrectly identified. 

The Agency, however, maintains that if 

the concentrations of the hazardous 

substances contained in the mixture are 

known, waste streams should be treated 

like any other mixture. If the releaser 

does not know the composition of the 

listed waste stream, EPA agrees that 

applying the RQ of the entire waste 

stream is the only reasonably 

conservative alternative. 

For example, a mixture of spent (used) 

cresols and nitrobenzene is identified in 

the RCRA regulations {40 CFR 261.31) as 

a hazardous waste from a non-specific 

source, F004. F004 has an RQ of 100 

pounds, because the RQ for cresols is 

100 pounds, the RQ for nitrobenzene is 

1000 pounds, and the lowest RQ for any 

of the hazardous substances in the 

mixture applies. If the person in charge 

knows only that a waste material 

contains unspecified amounts of cresols 

and nitrobenzene, then he or she would 

have to report if 100 pounds or more of 

the waste were released. The person in 

charge may, however, if sufficient data 

are available, apply die CWA mixture 

rule. If he or she knows that the F004 

waste contains 50 percent cresols and 50 

percent nitrobenzene, the releaser 

would have to report only when the 

total release equalled or exceeded 200 

pounds, because at that point the 100-

pound RQ of the cresol component 

would be equalled or exceeded. Because 

the concentrations of the hazardous 

substances in the waste stream are 

known, there is no reason to restrict the 

releaser to the F004 waste RQ of 100 

pounds. In this case, for notification 

purposes, the waste stream is no 

different than a known mixture of pure 

substances. 

A few commenters questioned 

whether the mixture rule applies to 

products where die active chemical 

ingredient for which it is named is 

present in less than 100 percent 

concentration. While the NPRM 

discussion of the mixture rule did not 

explicitly mention ""formulations of less 

than 100 percent strength," such 

formulations are indeed mixtures or 

solutions and are covered by the 

mixture rule. Two commenters wanted 

EPA to waive the CERCLA notification 

requirements for mixtures containing 

very low concentrations of hazardous 
13464 Federal Register / Vol. 50, No. 65 / Thursday, April 4, 1985 / Rules and Regulations 

P.11 

substances. These commenters 

suggested assigning a concentration 

value to each hazardous substance 

below which notification would not be 

required. This approach would, in effect, 

result in two rules for each substance, 

making application of the mixture rule 

cumbersome for the regulated 

community. Moreover, determining each 

concentration value would require the 

use of specific release scenarios, a 

methodology that EPA has rejected (see 

48 FR 23569 and Section V.C.3. of this 

preamble). For these reasons, EPA is 

retaining the mixture rule for all 

mixtures containing any concentration 

of a.hazardous substance, no matter 

how low the concentration. 

E. Exemptions From the CERCLA 

Notification Requirements 

CERCLA provides four types of 

exemptions from the notification 

requirements applicable to releases of 

hazardous substances in reportable 

quantities. Each type of e'xemption was 

discussed in the May 25,1983 NPRM 

preamble. Responses to major 

comments received on the exemption for 

the application of pesticide products 

registered under the Federal Insecticide, 

Fungicide, and Rodenticide Act (FIFRA) 

are provided below. Issues relating to 

the limited exemption for continuous 

releases and exemptions for "federally 

permitted releases" are not resolved in 

today's rule. 

Section 103(e) of CERCLA exempts 

from the notification provisions of the 

Act "the application of a pesticide 

product registered under the Federal 

Insecticide, Fungicide, and Rodenticide 

Act (FIFRA) [and] the handling and 

storage of such a pesticide product by 

an agricultural producer." In the 

proposed rule, EPA interpreted the 

application of pesticides as the normal 

application of registered pesticides (and 

pesticides used in accordance with 

FIFRA section 5 experimental use 

permits or FIFRA section 18 emergency 

exemptions) in ways that are consistent 

with the labeling instructions. 

Commenters objected to several 

aspects of EPA's pesticide exemption 

policy as stated in the NPRM. The first 

category of objections concerned the 

wording of the policy. Some commenters 

suggested that the phrase "pursuant to 

the label directions" as used in the 

definition of "normal application of 

pesticides" applies more to consumer 

goods than to industrial chemicals,- • 

because the label directions of the latter 

may not include complete application 

practices. Other commenters objected to 

the use of the term "normal" in the 

definition of "normal application of 

pesticides," because the term does, not 

appear in CERCLA section 103(e) and 

constitutes a potentially unnecessary 

restriction on the exemption. 

EPA agrees that the definition of 

"normal application of pesticides" is 

"unnecessary, and the definition does not 

appear in today's final rule. The 

legislative history of CERCLA suggests 

that Congress intended that the 

pesticide exemption apply to the 

application of a pesticide generally in 

accordance with its purpose. S. Rep. No. 

848, 96th Cong., 2d Sess. 45 (July 13, 

1980). While strict compliance with 

labeling direction is not a prerequisite 

for the exemption, the extent of 

compliance will be a critical factor in 

determining whether the application 

was generally in accordance with the 

pesticide's purpose. EPA does not 

consider a spill of a pesticide to be 

either an "application" of the pesticide 

or in accordance with the pesticide's 

purpose. Consequently, such spills must 

be reported. Note, moreover, that use of 

a pesticide inconsistent with its labeling 

is a violation of FIFRA that is 

potentially subject to both civil and 

criminal penalties. 

F. Duplicate Reporting 

1. General 

EPA is seeking to minimize 

unnecessary duplication between 

CERCLA reporting requirements and the 

reporting requirements of other 

environmental statutes. However, some 

commenters complained of the 

duplicative reporting burden created by 

CERCLA and of a lack of coordination 

among federal, state, and local agencies. 

Eight of these commenters suggested 

that one report to the NRC should 

suffice for all government agencies. 

Currently, one call to the NRC fulfills the 

requirement to report releases of 

hazardous substances under CERCLA 

and several other regulatory programs, 

including the Clean Water Act, the 

Resource Conservation and Recovery 

Act, and the Hazardous Materials 

Transportation Act, which is 

administered by the Department of 

Transportation. The May 25,1983 NPRM 

preamble discussed the equivalence of 

. compliance with certain RCRA reporting 

requirements and CERCLA notification 

requirements. Section 103(f)(1) of 

CERCLA exempts from the notification 

requirements of sections 103 (a) and (b) 

releases that are subject to reporting 

requirements (or specifically exempted 

from such reporting) under Subtitle C of 

RCRA and have been reported to the 

National Response Center. The Agency 

has reviewed all other areas of duplicate 

reporting created by CERCLA and has 

found that the burden imposed by 

CERCLA notification requirements is 

not great. At most, the duplication that 

exists may require that more than one 

telephone call concerning a release be 

made by the releaser and recorded by 

government agencies. 

Today's final rule does not affect 

hazardous substance reporting 

requirements imposed by certain other 

regulations and statutes, as discussed in 

section IV.G. below. 

2. Newspaper Notification Requirement 

CERCLA section 111(g) requires that 

owners or operators of any vessel or 

facility "provide reasonable notice to 

potential injured parties by publication 

in local newspapers serving the affected 

area" of any release of a hazardous 

substance. One commenter asked 

whether RQ notification requirements 

revoke section 111(g). The newspaper 

notification requirement established by 

section 111(g) of CERCLA is not affected 

by any of the notification requirements 

in today's rule. 

G. Regulatory Consistency 

EPA has always made every effort to 

coordinate its regulations of hazardous 

substances with other government 

agencies. For example, EPA and the 

Department of Transportation (DOT) 

(which includes the U.S. Coast Guard) 

have cooperated over the years in a 

series of regulatory actions, including 

the establishment of the centralized tollfree telephone number for reporting 

spills of hazardous substances to the 

NRC. EPA recognizes that cooperation 

with other agencies is vital to the 

development of clear and consistent 

regulatory policies in areas of 

complementary or shared responsibility. 

The Agency has carefully reviewed 

comments from other government 

agencies on the NPRM and does not 

believe that the CERCLA RQs or 

notification requirements create 

regulatory inconsistencies. 

Many commenters questioned the 

extent of EPA-DOT coordination 

concerning CERCLA RQ regulations and 

regulations pursuant to the Hazardous 

Materials Transportation Act (HMTA). 

EPA recognizes the need for consistency 

between the RQ regulations and DOTs 

Hazardous Material Regulations (HMR). 

The Agency believes that the 

cooperative efforts of EPA and DOT will 

result in an RQ adjustment regulatory 

approach that will be consistent with 

any related regulations promulgated by 

DOT. EPA has promoted and will 

continue to promote coordination 

between the RQ adjustment regulation 

and the HMR. EPA wishes to clarify, 

however, that while it strongly supports 
P.12 

Federal Register / Vol. 50, No. 65 / Thursday, April 4, 1985 / Rules and Regulations 

cooperation between EPA and DOT, it 

has no authority to revise the HMR. Any 

changes must be made by DOT. 

The International Convention for the 

Prevention of Pollution from Ships 

(MARPOL 73/78), as implemented 

through the Act to Prevent Pollution 

from Ships (33 U.S.C. 1901 et seq.), 

currently imposes reporting 

requirements concerning releases of 

harmful substances from U.S. ships 

wherever located and from foreign ships 

within the navigable waters of the 

United States. Under 33 U.S.C. 1906, as 

soon as a person in charge of a ship has 

knowledge of an event involving the 

actual or probable release into the sea 

of a harmful substance (broadly 

defined), he or she must report the 

incident to the Secretary of the 

department in which the Coast Guard is 

operating (currently DOT). No 

reportable quantities are specified. 

Thus, MARPOL 73/78, as implemented 

by 33 U.S.C. § 1906, may require 

reporting even where CERCLA does not 

Annex II of MARPOL 73/78 prohibits 

discharges of noxious liquid substances 

within 12 miles from shore. Beyond 12 

miles, discharges are either prohibited 

or limited, depending on the nature of 

the cargo and compliance with several 

criteria. Annex II, scheduled to take 

effect in October 1986, applies to all 

ships carrying noxious liquid substances 

in bulk and limits operational discharges 

of these substances by setting minimum 

or maximum numerical values for 

distance from shore, depth of water, 

ship speed, concentration of substance 

in ship's wake, and maximum quantity 

of cargo residues that may be 

discharged. To improve regulatory 

consistency and enhance coordination 

with the U.S. Coast Guard, EPA intends 

to investigate the scope and intent of 

MARPOL 73/78 Annex II regulations 

(including a Coast Guard ANPRM (48 FR 

1519-1521, Jan. 13,1983) dealing with 

certain types of hazardous substances 

that are intended to be regulated in 

accord with MARPOL) and to examine 

regulatory and technical concerns 

arising from coordination between 

CERCLA and MARPOL. 

Section 8(e) of the Toxic Substances 

Control Act (TSCA) may also require 

reporting where CERCLA does not. 

Pursuant to a Statement of 

Interpretation published March 16,1978, 

43 FR 11110, all emergency incidents of 

environmental contamination that 

present a "substantial risk of injury to 

health or the environment" must be 

reported to EPA under TSCA section 

8(e). Section 8(e) could require 

notification even where no CERCLA 

hazardous substances or RQs have been 

released. Persons subject to the 

notification requirement include both 

natural persons and business entities 

engaged in the manufacturing, 

processing, or commercial distribution 

of chemical substances or mixtures. No 

notification is required if the 

manufacturer, processor, or distributor 

knows that EPA has been informed of 

the risk presented by the incident. For 

hazardous substance releases subject to 

CERCLA, a single notification to the 

NRC will satisfy both CERCLA and 

TSCA section 8(e) reporting 

requirements; the Agency will ensure 

that section 8(e) reports are passed to 

the proper authorities. 

H. Penalties 

Section 302.7(a) of the proposed rule 

set forth the penalties imposed by 

CERCLA Section 103(b) for failure to 

notify the NRC of a reportable release. 

Section 302.7(a) of today's final rule 

does not specify the penalties 

established by CERCLA section 103(b); 

rather, the rule incorporates the 

statutory penalties by reference. The 

regulation still informs responsible 

parties of the statutory sanctions for 

failure to notify, but the change will 

avoid the need to amend 40 CFR 302.7 

should CERCLA section 103(b) be 

amended. Currently, CERCLA section 

103(b) provides that any person in 

charge of a facility or vessel from which 

a hazardous substance is released, other 

than a federally permitted release, in a 

quantity equal to or greater than the 

reportable quantity, who fails to notify 

. the appropriate federal agency as soon 

as he has knowledge ofthe release, shall 

upon conviction be fined not more than 

$10,000 or imprisoned for not more than 

one year, or both. Notifications received 

under sections 103(a) or 103(b) 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. 

V. Reportable Quantity Adjustments 

A. Introduction 

The primary purpose of the CERCLA 

notification requirements, discussed 

above in section IV, is to ensure that 

releasers notify the government so that 

the need for a federal response can be 

evaluated and any necessary response 

undertaken in a timely fashion. 

With this purpose in mind, EPA 

proposed adjustments to the statutory 

RQs of CERCLA hazardous substances 

based on specific scientific and 

technical criteria that relate to the 

possibility of harm from the release of a 

hazardous substance in a reportable 

quantity. The adjusted RQs do not 

reflect a determination that a release of 

a substance will be hazardous at the RQ 

level and not hazardous below that 

level. EPA has not attempted to make' 

such a determination because the actual 

hazard will vary with the unique 

circumstances of the release, and 

extensive data and analysis would be 

necessary to determine the hazard 

presented by each substance in a 

number of possible circumstances. 

Instead, the RQs reflect the Agency's 

judgment of which releases shoijld 

trigger mandatory notification to the 

federal government so that the 

government may assess to what extent, 

if any, a federal removal or remedial 

action may be necessary. 

Over forty commenters supported 

both the methodology EPAused in 

determining RQs and the results of this 

methodology. These commenters agreed 

that the.RQ adjustments will; 

(1) Increase the efficiency and 

certainty of the Superfund program; 

(2) Reduce burdens on the regulated 

community; and 

(3) Improve EPA's ability to 

concentrate its attention and resources 

on the releases that are potentially most 

threatening to public health or welfare 

or the environment. 

In addition, EPA received many 

comments on various specific topics 

relating to the RQ adjustments that were 

discussed in the NPRM. Some 

commenters also discussed issues that 

were not explicitly addressed in the 

proposed rule. Responses to both types 

of comments are presented below. 

B. Number of Reportable Quantity 

Levels and Their Values 

1. Five RQ Levels 

For purposes of making RQ 

adjustments under CERCLA, EPA has 

adopted the five RQ levels of 1,10,100, 

1000, and 5000 pounds originally 

established pursuant to CWA section 

311 (see 40 CFR Part 117). The Agency 

adopted the CWA five-level system 

primarily because (1) it has been 

successfully used pursuant to the CWA, 

(2) the regulated.community is already 

familiar with these five levels, and (3) it 

provides a relatively high degree of 

discrimination among the potential 

hazards posed by different CERCLA 

hazardous substances. Many 

commenters voiced general support of 

the five-level system; however, as the 

next section discusses, some 

commenters criticized the use of one 

pound as the lowest RQ level. 
P.13 

Federal Register / Vol. 50, No. 65 / Thursday, April 4, 1985 / Rules and Regulations 

2. One-Pound RQs 

Several comments were received on 

the one-pound RQ level. A few 

commenters argued that a one-pound 

RQ is too small for reporting purposes. 

They reasoned that a one-pound release 

of a hazardous substance would have an 

inconsequential impact on public health 

and welfare and the environment and 

that federal agencies would not respond 

to such small releases. 

The one-pound RQ is consistent with 

prior regulation under the Clean Water 

Act (see 40 CFR Part 117). One pound 

was selected under the Clean Water Act 

as the lowest reporting level because 

one pound is typically the smallest 

container size used in commerce for 

transporting moderately or extremely 

hazardous substances 40 FR 59989, 

December 30,1975. Moreover, the 

Agency interviewed a large crosssection of field response personnel, and 

all of those interviewed indicated that 

they want to be notified of most 

releases, even at the one-pound level. In 

the interviews, the field response 

personnel recognized that die 

government may not institute removal or 

remedial actions for many one-pound 

releases, but they emphasized that 

notification was a prerequisite for 

determining (1) the need for a response 

under the circumstances, (2) the 

adequacy of any cleanup efforts, and (3) 

the degree to which post-release 

monitoring may be required. 

Furthermore, many releases tend to be 

escalating events, and early notification 

helps ensure an effective response. 

Six commenters criticized the onepound RQ level for posing an 

unreasonable burden on the regulated 

community. One commenter indicated 

that the adoption of one-pound RQs will 

require many companies to do extensive 

testing of raw materials in order to 

assure compliance with this regulation. 

CERCLA does not require any testing, 

and EPA does not intend to require any 

further testing beyond that which is 

already required by other statutes and ' 

their implementing regulations. 

C. Methodology Used To Adjust 

Reportable Quantities 

1. The Methodology Chosen 

The selected strategy for adjusting 

RQs begins with an evaluation of the 

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, and 

chronic toxicity. (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 release or multiple 

releases of a hazardous substance.) In 

addition, substances that were 

identified as potential carcinogens have 

been evaluated for their relative activity 

as potential carcinogens; the RQs for 

these substances will be proposed in a 

separate rulemaking, and the 

methodology for adjusting RQs on the 

basis of potential carcinogenicity will at 

that time be presented for public 

comment. 

The Agency ranks each intrinsic 

property on a five-tier scale, associating 

a specified range of values on each scale 

with a particular RQ value. Thus, each 

substance receives several tentative RQ 

values based on its particular 

properties.' The lowest of all of the 

tentative RQs becomes the "primary 

criteria RQ" for that substance. (See 

Section V.D.I, below for further detail.) 

After the primary criteria RQs are 

assigned, substances are further 

evaluated for their susceptibility to 

certain extrinsic degradation processes. 

These extrinsic processes (referred to as 

"secondary criteria" in the May 25; 1983 

NPRM) are biodegradation, hydrolysis, 

and photolysis, or "BHP." If the analysis 

indicates that a substance degrades 

relatively rapidly to a less harmful 

compound through one or more of these 

processes when it is released into the 

environment, the primary criteria RQ is 

raised one level. (See section V.D.2. 

below for further detail.) The single RQ 

assigned to each substance on the basis 

of the primary criteria and BHP becomes 

the adjusted RQ for that substance. 

2. Multiple RQs and Media-Specific RQs 

Many commenters objected to the 

Agency's proposal to establish a single 

RQ for each hazardous substance. It 

was suggested that either (1) the Agency 

should develop several RQs for each 

hazardous substance, for example, one 

RQ for each of the various 

environmental media (air, water, soil) 

into which a release might occur, or (2) 

the Agency should base the adjusted RQ 

for each substance on the most likely 

medium of release rather than on the 

most sensitive environmental trigger (as 

is currently done). 

Several of the objecting commenters 

believed that the RQs would be 

arbitrary if they did not reflect the 

3

 If available evidence shows that a substance 

hydrolyzes into a reaction product that is more 

hazardous than the original substance, the primary 

criteriaare applied to the reaction product rather 

than to the original substance to determine the 

primary criteria RQ values for the original 

substance. 

varying degrees of risk presented by 

releases into different environmental 

media. For similar reasons, they argued 

that the RQs should vary depending on. 

the form of the substance released (i.e., 

whether it is a solid, a liquid, or a gas) 

and its ability to dissipate into the 

environment. The objecting commenters 

believed that if the RQs were to reflect 

more accurately the hazards of given 

releases, the overall reporting burden 

would be reduced, because reports 

would not have to be made in situations 

where the government would be unlikely 

to respond. 

As has been stated, the RQs are not 

intended to represent judgments by the 

Agency as to the specific degree of 

hazard associated with certain releases. 

The actual hazard will vary with the 

circumstances of the particular release, 

and many factors other than the size of 

the release will influence the 

government's response. The single RQ 

approach was adopted to provide a 

relatively simple reporting system that 

does not unduly burden either EPA or 

the regulated community. Since releases 

into more than one medium often occur, 

the single RQ approach will prevent 

confusion. Section 102(a) of CERCLA 

expressly authorizes the Administrator 

to set a single quantity for each 

hazardous substance, and the legislative 

history emphasizes the virtues of 

simplicity and administrative 

convenience (see Sen. Rep. 848, 96th 

Cong., 2d Sess. 29 (I960)). Moreover, the 

Agency simply does not have the 

resources to obtain the vast quantity of 

technical data, required to develop RQs 

that, on the one hand, are tailored to fit 

every release situation, and that, on the 

other hand, are consistent-equitable, 

and adequately protective of public 

health and welfare and the environment. 

EPA will be able to refine the singleRQ approach over time as more 

information becomes available, without 

having to expend substantial resources 

to develop a massive technical data 

base and undertake other burdensome 

rulemaking support. Radionuclides, 

because of their unique characteristics, 

are the one category of substances for 

which the Agency is considering 

deviation from the single RQ approach, 

' As noted in section HLC. of this 

preamble, radionuclide RQs will be 

addressed in a separate rulemaking. 

A number of commenters expressed 

the opinion that the RQ adjustment 

criteria should take particular release 

circumstances into consideration. The 

suggested circumstances included 

release into a sewer system, release 

near a public drinking water supply, 

release near a residential area, and air 
P.14 

Federal Register / Vol. 50, No. 65 / Thursday, April 4, 1985 / Rules and Regulations 

emissions from elevated sources (tall 

stacks). One commenter even stated 

that "determinations of actual harm" 

should be made for all substances with 

one- and ten-pound RQs by examining 

release potential, release history, the 

degree of hazard or risk of particular 

releases in various environmental 

media, and the likelihood that such 

releases would require federal action. 

The Agency position is mat particular 

circumstances should not affect the RQ 

level; instead, they may influence the 

government's decisions concerning 

whether and how it should respond to a 

particular release. 

Many commenters focused on the 

appropriateness of a single RQ 

governing emissions into the air as well 

as releases into other media. They 

argued as follows: 

° Because the government cannot 

respond to most air emissions by 

containing or cleaning up the emissions, 

and because other government 

responses (e.g., evacuation of the nearby 

populace) are required only 

infrequently, requiring routine reporting 

of air emissions under a single-RQ 

approach would be wasteful and 

burdensome. 

0

 The impacts of emissions into 

ambient air are substantially less than 

releases of similar size to water or soil, 

and the photolysis and degradation of 

many air emissions tend to be relatively 

rapid. 

0

 Relatively few substances would be 

eligible for separate air release RQs, and 

EPA would not have to devote a 

substantial amount of effort and 

resources to make the appropriate 

adjustments. 

The Agency believes that an 

exception to die single-RQ approach for 

air releases could not be restricted to .air 

releases alone under the above 

reasoning. Several other types of 

releases exhibit certain of the 

characteristics of air releases, such as 

releases into large bodies of rapidly 

moving water. If the circumstances of 

particular releases were taken into 

account in setting RQs, the entire 

process would place an intolerable 

burden on Agency resources. The 

process would also become potentially 

inconsistent, inequitable, and subject to 

delay. Moreover, the resulting 

complexity in RQs would be likely to 

engender both confusion and further 

charges of arbitrariness. 

One commenter believed that, for the 

most part, releases that would be 

affected by a separate air release RQ 

would be those which are "continuous" 

and released from facilities subject to 

Clean Air Act regulations. If an air 

release fall's within the exemptions 

provided by CERCLA for "continuous" 

or "federally permitted" releases, of 

course, no notification is necessary 

(except as required for continuous 

releases); if many air releases are 

exempt, a separate air release RQ would 

provide very few benefits. 

3. Alternative Methodologies 

Considered 

In the May 25,1983 NPRM, EPA 

described and solicited comments on 

three alternative methodologies for 

adjusting RQs: Hazard Index, Scenarios, 

and Fate and Effects. Most commenters 

agreed with the Agency that these 

methodologies would be impractical to 

implement and would introduce 

unnecessary complexities into the RQ 

adjustment process, although several 

commenters encouraged further 

research into the Hazard Index 

approach. No new data to facilitate a 

more complete evaluation of these 

methodologies have been submitted. 

Because these methodologies are 

complex and require much data that are 

unavailable at this time, EPA is not 

currently pursuing these methodologies 

further for RQ adjustment purposes. 

D. Criteria Used To Adjust Reportable 

Quantities 

1. Primary Criteria 

a. Aquatic Toxicity. In adjusting RQs, 

EPA used the categories of aquatic 

toxicity that were established pursuant 

to section 311 of the CWA. As Exhibit 1 

shows, each category is linked to one of 

the five RQ levels. The RQ value based 

on aquatic toxicity is identical to the RQ 

promulgated under the CWA section 311 

except where the use of updated aquatic 

toxicity data has resulted in a different 

RQ (see section V.F.2. below). 

EXHIBIT 1.—CATEGORIES FOR REPORTABLE 

QUANTITY ASSIGNMENTS PURSUANT TO CWA 

SECTION 311 

RQ 

(pounds) 

1 .. 

10 

1000 

5000 

Aquatic toxicity 

LG»° <0.1 rag/liter _ 

0.1mg/liter «;LG» <1 mg/liter_ _ 

Category 

X 

A 

8 

c 

D 

• "LCw" refers to that concentration of material which is 

lethal to one-half of the test population of aquatic animals 

upon continuous exposure for 96 hours. (See 40 CFR 

116.14). 

Source: 43 FR 10492, March 13, 1978. 

One commenter questioned the 

rationale for assigning one-pound RQs 

to substances in the highest aquatic 

toxicity category. The commenter 

indicated that an RQ of 10 pounds, or 

even 100 pounds, could be assigned just 

as easily. The five-level reportable 

quantity scale for aquatic toxicity was 

taken directly from section 311 of the 

Clean Water Act. The CWA section 311 

reporting categories are being retained 

for CERCLA reporting purposes in order 

to ensure consistency between the two 

closely related acts. The aquatic toxicity 

RQ scale has been used successfully in 

implementing the Clean Water Act, and 

the regulated community is familiar wim 

it. Moreover, as noted above in the 

section on one-pound RQs, many 

releases tend to be escalating events 

requiring prompt attention. 

b. Mammalian Toxicity. EPA 

separately evaluated oral, dermal, and 

inhalation toxicity for the mammalian 

toxicity criterion. A five-level scale was 

devised for each type of toxicity. These 

scales are shown in Exhibit 2. The RQ 

chosen for mammalian toxicity 

represents the lowest of the values 

derived from the three scales. These 

scales were discussed in detail in the 

NPRM {48 FR 23562-23563). 

One commenter believed that the 

Agency's mammalian toxicity scales 

assign RQs which are too high for some 

poisonous substances. The commenter 

therefore proposed new scales based on 

mammalian toxicity that would assign 

many more one-pound RQs than the 

Agency's scales. The Agency believes 

that tiie scales suggested by the 

commenter are overly broad and could 

lead to unnecessary reporting. 

EXHIBIT 2.—CATEGORIES FOR REPORTABLE QUANTITY ADJUSTMENTS BASED ON MAMMALIAN TOXICITY ° 

RO 

(pounds) Mammalian toxicity (orat) Mammalian toxicity (dermal) Mammalian toxicity (inhalation) 

1 

10 

100.... 

1000.. 

5000.. 

LCW <0.1 mg/kg _ 

0.1 mg/kg <LO» <1 mg/kg 

1 mg/kg <LO» <10 mg/kg 

10 mg/kg <LD» < 100 mg/kg 

100 mg/kg <LDgo <500 mg/kg.. 

LD» <0.04 mg/kg u .. 

0.04 mg/kg <LDu> <0.4 mg/kg.. 

0.4 mg/kg <LD«o <4 mg/kg 

4 mg/kg <LO» < 40 mg/kg._ 

40 mg/kg <LDso <200 mg/kg.... 

LC*,' <0.4 ppm. 

0.4 ppm <LCM> <4 ppm. 

4 ppm <LCu> <40 ppm. 

40 ppm <LCM <400 ppm. 

400 ppm <LCw <2000 ppm. 

• For a detailed explanation of the derivation of these categories, see Technical Background Document to Support Rulemaking Pursuant to CERCLA Section 102. 

b

 "LOM" refers to that dose of a substance expected to cause the death of 50 percent of a defined experimental mammalian population.' 

' "LCso" refers to that concentration of a substance in the air that is expected to cause the death of 50 percent of a defined experimental mammalian population. 
13468 Federal Register / Vol. 50, No. 65 / Thursday, April 4, 1985 / Rules and Regulations 

c. Ignitability and Reactivity. The EXHIBIT 4—CATEGORIES FOR REPORTABLE 

Agency used a five-level scale to assign QUANTITY ADJUSTMENTS BASED ON 

RQs based on ignitability. The NPRM REACTIVITY • 

discussed this scale in detail (48 FR 

23563). Exhibit 3 shows the scale used. 

The Agency did not assign one-pound 

RQs based on ignitability because small 

releases of a flammable substance 

would generally be consumed so quickly 

that any federal government response 

action would be infeasible. 

EXHIBIT 3.—CATEGORIES FOR REPORTABLE 

QUANTITY ADJUSTMENTS BASED ON 

IGNITABILITY * 

RO 

(pounds) 

1 

10 

100 

1000.. 

5000... 

Ignitability (fire) 

RQ 

(pounds) 

1 

10 

100 

1000 

5000 

Reactivity

 b 

With water 

No 1 -pound RQs on 

the basis of reactivity. 

Inflames (e.g., Na, 

Cad). 

Extreme reaction (e.g.. 

SO*). 

High reaction (e.g., 

oleum). 

Moderate reaction (e.g.. 

NH,). 

Self-reaction 

the basis of reactivity 

may cause explosion 

or detonation. 

High; may polymerize; 

requires stabilizer. 

Moderate; 

contamination may 

cause polymerization; 

no inhibitor required. 

Slight; may polymerize 

with low heat 

release. 

No 1-pound RQs on the basis of ignitability. 

Pyrophoric or self-ignitable. 

FP"„ <100'F, BP' <ioo'F. 

FP« <100'F, BP>100'F. 

FP_ 100'F-140'F. 

•For a detailed explanation of the derivation of these 

categories, see Technical Background Document to Support 

Rulemaking Pursuant to CERCLA Section 102. 

b

 "FP^" refers to the flash point, the temperature at which 

a substance forms an ignitable mixture with the air at the 

surface of the substance, measured using the closed cup 

test. 

c

 "BP" refers to the boiling point, the temperature at which 

a liquid boils. 

The Agency also used five-level 

scales for assigning RQs based on two 

types of reactivity: reactivity with water 

and self-Teaction. For reactivity, as for 

ignitability, no one-pound RQs were 

assigned. The NPRM discussed the 

reactivity scales and their development. 

Exhibit 4 shows the scales used. 

One commenter requested that the 

minimum RQ level for the ignitability 

and reactivity RQ scales be set at 100 

pounds instead of 10 pounds. The 

Agency has decided to retain the 10-

pound minimum RQ level. As a result of 

interviews with federal government field 

response personnel, the Agency decided 

to remove the one-pound RQ level from 

the ignitability and reactivity RQ scales. 

Government response personnel 

indicated that releases of less than 10 

pounds of ignitable and reactive 

substances normally would be 

adequately handled by appropriate local 

or state response personnel, and they 

concurred with the Agency's proposal to 

raise to 10 pounds the minimum 

reporting level for the ignitability and 

reactivity RQ scales. Government 

response personnel, however, objected 

to raising the minimum reporting level 

any further. They believed that reporting 

levels should be kept low to ensure 

timely reporting of releases and timely 

government response, if necessary. 

-For a detailed explanation of the derivation of these 

categories, see Technical Background Document to Support 

Rulemaking Pursuant to CERCLA section 102. b

 Based on heat release. 

d. Chronic Toxicity. The Agency used 

data on chronic toxicity (referred to as 

"other toxic effects" in the May 25,1983 

NPRM) to adjust the statutory RQs for 

some hazardous substances. For other 

hazardous substances, data on chronic 

toxicity were still being evaluated at the 

time of the May 25,1983 NPRM. RQs 

were not adjusted for those substances 

undergoing evaluation; thus, the 

statutory RQ applies. In addition, there 

are a few substances for which an RQ 

was proposed in the NPRM but for 

which EPA subsequently determined 

that further evaluation was necessary. 

The statutory RQ applies for these 

substances until a final RQ is 

promulgated (see section V.F.2. below). 

When analyzed for chronic toxicity, 

substances are assigned scores based on 

both the minimum effective dose (MED) 

levels for repeated exposures and the 

severity of the effects caused by 

repeated or continuous exposure. The 

scores are then used to assign RQs. The 

NPRM described the methodology used 

(48 FR 23564); Exhibit 5 shows the RQ 

levels based on chronic toxicity. 

EXHIBIT 5.—CATEGORIES FOR REPORTABLE 

QUANTITY ADJUSTMENTS BASED ON CHRONIC TOXICITY' 

1 

10 

100 

10O0 

5000 

RO (pounds) 

Composite 

score 

81-100 

41-80 

21-40 

6-20 

1-5 

* For a detailed explanation of the derivation of these' 

categories, see Technical Background Document to Support 

Rulemaking Pursuant to CERCLA Section 102. 

' A number of commenters suggested 

that chronic toxicity should not be used 

to determine RQs or should be used only 

with additional restrictions. These 

commenters believed that chronic 

toxicity, which is a function of 

prolonged exposure, should not be 

considered because the purpose of the 

RQ program is to monitor episodic 

releases. The Agency decided to use 

chronic toxicity as a criterion in setting 

RQs because episodic releases which 

are not rapidly and completely cleaned 

up may result in repeated or continuous 

exposure to a toxic substance. 

Moreover, CERCLA reporting 

requirements cover both episodic and 

continuous releases. Continuous 

releases may also lead to repeated or 

continuous exposure to toxic 

substances. 

e. Potential Carcinogenicity. Today's 

rule does not use any measure of 

potential carcinogenicity to adjust RQs. 

EPA is in the process of developing 

adjusted RQs for substances which have 

been identified as potential carcinogens. 

The statutory RQs for these substances 

apply while they are being considered 

for RQ adjustment. Table 302.4 notes 

those substances which are being 

evaluated for their relative activity as 

potential carcinogens (but which may or 

may not be potential carcinogens). 

2. Other Criteria Used to Adjust RQs 

(BHP) 

a. Use of BHP Criteria. Twenty 

commenters supported the use of the 

natural degradation processes of 

biodegradation, hydrolysis, and 

photolysis ("BHP") as additional criteria 

for adjusting RQs. The BHP criteria are 

used, where appropriate, to raise RQ 

values one level from that suggested by 

the primary criteria analysis. Four 

commenters opposed the use of BHP to 

adjust RQs. 

The supporting commenters agreed 

that the above degradation processes 

tend to reduce the relative potential for 

harm to public health and welfare and 

the environment of certain harzardous 

substance releases. It was seen that 

taking the environmental fate 

characteristics of particular substances 

into account in setting RQ levels was an 

appropriate method to reduce the 

overall reporting burden while still 

adequately protecting public health and 

welfare and the environment. However, 

one commenter emphasized that the 

BHP criteria are a useful RQ adjustment 

tool only where the associated analysis 

is not overly complex, expensive, or 

time-consuming. 

Several commenters requested 

clarification of the methodology used in 
P.16 

er / Vol. 50, No. 65 / Thursday, April 4, 1985 / Rules and Regulations 

applying BHP. The Technical 

Background Document supporting this 

rulemaking sets forth in detail the 

relatively simple, yet scientifically 

conservative methodology used to apply 

these criteria. First, several elimination 

criteria are used to limit the number of 

substances eligible for the one-level 

increase based on BHP. The elimination 

criteria include the following: tendency 

to bioaccumulate, environmental 

persistence, the presence of unusual 

hazards (e.g., high reactivity), the 

existence of hazardous degradation or 

transformation products, or a primary 

criteria RQ already at the maximum 

assignable level of 5CO0 pounds. The 

remaining substances are evaluated for 

their susceptibility to biodegradation, 

hydrolysis, and photolysis. As discussed 

below, the Agency uses ranges of 

degradation rates sufficient to ensure 

that the substances selected for the onelevel increase in RQ (27 in today's final 

rule) are in fact relatively degradable. 

Two commenters believed that the 

Agency's evaluation pursuant to the 

BHP criteria should lead to a downward 

adjustment if the risk posed by the 

release of a hazardous substance is 

increased as a result of biodegradation, 

hydrolysis, or photolysis (i.e., if the 

natural degradation processes produce 

materials in the environment that are 

more hazardous than the original 

substance released). The Agency agrees 

that consideration must be given to the 

toxicity of the degradation products. 

Where reaction products more 

hazardous than the original substance 

are readily known and identified, the 

Agency has based the primary criteria 

RQ of the original substance on the 

characteristics ofthe more hazardous 

reaction products, effectively resulting 

in a "downward adjustment." 

'Application of the primary criteria to 

the reaction products rather than to the 

original substances occurred in ten . 

cases for the substances assigned final 

adjusted RQs in this rule. For example, 

substances known to generate hydrogen 

sulfide or phosphine upon hydrolysis 

have been assigned primary criteria RQs 

on the basis of these reaction products. 

The few commenters opposing the use 

of BHP felt that biodegradation, 

hydrolysis, and photolysis should be 

considered by the On-Scene 

Coordinator in determining the 

government's response after a release 

has been reported, but that EPA should -

not use such processes to alter the initial 

reporting level suggested by the primary 

criteria. For the reasons given below, the 

Agency disagrees. 

First, the commenters asserted that' 

biodegradation, hydrolysis, and 

photolysis should not be applied in the 

setting of RQs because these processes 

may not affect the immediate hazard 

posed by a given release and instead 

may only reduce the potential long-term 

dangers of the release. However, EPA 

has used degradation measures that 

address both short- and long-term 

potential hazards. The RQ of a 

substance is not raised unless (1) the 

reported biological oxygen demand of 

the substance over a five-day period at 

20 degrees Celsius is at least fifty 

percent of the theoretical oxygen 

demand (the stoichiometric quantity of 

oxygen needed to oxidize a substance 

completely to carbon dioxide and 

water), or (2) when subjected to 

hydrolysis, photolysis, or either process 

in conjunction with biodegradation, the 

estimated half-life of the substance is 

equal to or less than five days. 

The primary criteria RQs of four 

substances (allyl chloride, butylamme, 

diazinon, and ethyl acrylate) were 

adjusted upwards in the May 25,1983 

NPRM oh the basis of degradation data 

involving periods greater than five days, 

because data for shorter periods were 

unavailable. The Agency has since 

decided to adjust RQs according to the 

criteria stated above (i.e., evidence of 

degradation within five days), to ensure 

that all substances selected for the onelevel increase will tend to degrade 

rapidly once they are released. 

Therefore, allyl chloride, butylamine, 

diazinon, and ethyl acrylate are 

assigned their primary criteria RQs in 

today's final rule. 

The second major argument raised by 

the commenters opposed to the use of 

BHP was that the methods for measuring 

the occurrence and rate of 

biodegradation, hydrolysis, and 

photolysis do not take into account the 

entire range of environmental conditions 

that could potentially affect each 

process. The Agency acknowledges this 

limitation in its analysis. RQs cannot be 

designed to account for every 

environmental condition of each release 

of a hazardous substance. Instead, each 

RQ level represents the Agency's best 

judgment concerning the threshold at 

which the NRC should be notified. 

Although environmental conditions 

are not considered in the RQ adjustment 

process, EPA has taken into account, 

certain physical characteristics of 

substances in adjusting RQs on the 

basis of biodegradability. The test for 

biodegradability is performed using a 

closed container, which may provide 

misleading data for highly volatile 

substances that are unlikely to remain in 

microbe-bearing soil or water. The 

Agency has therefore elected not to -

apply the biodegradation criterion to 

any highly volatile substance (i.e., with 

a boiling point less than 100 degrees 

Fahrenheit) unless that substance is also 

highly water soluble. Highly water 

soluble substances will tend to be 

retained in water or in soil (by soil 

moisture). The primary criteria RQ of 

acetaldehyde was raised one level 

under these circumstances; even though 

the boiling point of acetaldehyde is less 

than 100 degrees Fahrenheit, the 

substance is also highly water soluble. 

b. Other Criteria Considered and 

Rejected. In the NPRM preamble, EPA 

noted that it had considered using 

volatilization (the process by which a 

substance vaporizes into the air) as an 

additional criterion for adjusting RQs, 

but had rejected it because the hazard 

posed by a release of a hazardous 

substance does not necessarily decrease 

when the substance moves from soil or 

water into the air. One commenter 

disagreed with the Agency's decision 

not to use volatilization, arguing that 

where a compound is particularly 

volatile, no response action may be 

feasible. EPA maintains its earlier 

position that the movement of a 

substance between environmental 

media (from the soil or water into the 

air) does not necessarily affect the 

potential hazard. The feasibility of a 

response is a decision for the On-Scene 

Coordinator. 

c. Broadening the Scope of the BHP 

Criteria. The NPRM noted, without 

discussion, that the criteria of 

biodegradation, hydrolysis, and 

photolysis were not used to raise RQs 

based on chronic toxicity, and it did not 

mention the application of BHP to 

substances being evaluated for potential 

carcinogenicity. Several commenters 

expressed the opinion that BHP should 

be applied to hazardous substances 

evaluated for chronic toxicity and/or 

potential carcinogenicity. They noted 

that the processes of biodegradation, 

hydrolysis, and photolysis may, in 

certain cases, reduce the potential 

hazard of such substances. EPA agrees 

that BHP should be applied to those 

hazardous substances evaluated for 

chronic toxicity, and the Agency is 

considering whether to apply BHP to 

substances evaluated for potential 

carcinogenicity. 

In fact, the Agency has already 

evaluated BHP with respect to those 

substances that were analyzed-for 

chronic toxicity. Two substances 

evaluted for chronic toxicity have had 

their primary criteria RQs increased one 

level on the basis of biodegradability: 

acetonitrile (1000 to 5000 pounds) and 

methyl ethyl ketone (1000 to 5000 

pounds). 
13470 Federal Register / Vol. 50, No. 65 / Thursday, April 4, 1985 / Rules and Regulations 

A number of commenters argued that 

RQs should be adjusted more than one 

RQ level on the basis of the BHP criteria 

to reflect the speed and completeness 

with which a substance degrades. In a 

v

 related suggestion, several commenters 

requested that EPA develop formal 

ranking scales for these criteria. 

The lack of extensive data and the 

uncertainty of much .of the existing data 

concerning the environmental fate of 

various hazardous substances prevent 

adjustments of more than one level to 

reflect the speed and completeness with 

which a substance degrades. The 

Agency believes that an upward 

adjustment of one level adequately 

lessens the reporting burden on the 

regulated community regarding releases 

of the 27 substances involved and 

satisfactorily protects public health and 

welfare and the environment. 

Similar data gaps hinder development 

of formal ranking scales for the BHP 

criteria. Moreover, even if adequate 

data were available, the BHP criteria 

could not be easily applied through a 

more formal multi-tier ranking system, 

for many of the same reasons a hazard 

index is currently impractical. For 

example, there is no objective way to 

determine the proper numerical weights 

for the different primary and BHP 

criteria that would be combined in a 

more formal ranking system. Therefore, 

the Agency has determined that more 

formal ranking scales for the application 

of BHP are not practical at this time. 

Further refinement of the use of BHP 

may be undertaken in connection with a 

future rulemaking. 

For a more detailed discussion of the 

BHP criteria and the problems of 

combining different criteria ranking, see 

the discussion of hazard indices in the 

May 25,1983 NPRM at 48 FR 23568-

23569, and the Technical Background 

Document to Support Rulemaking 

Pursuant to CERCLA section 102, 

available for inspection at Room S-325, 

U.S. Environmental Protection Agency, 

' 401 M Street, SW, Washington, D.C. 

20460. 

d. Additional Data Suggested. Some 

commenters suggested specific data 

sources for analysis of BHP. EPA used 

one of these sources in making the 

adjustments proposed in the May 25, 

1983 NPRM. On the basis of data 

contained in the other available sources, 

the RQs of acetonitrile and furfural have 

* each been raised one level to 5000 

pounds. 

3. Additional Criteria Considered but 

Not Currently Used To Adjust RQs 

a. Release History and Release 

Potential. Several comments were 

received on the use of release history 

and release potential as criteria for 

adjusting RQs. EPA agrees with those 

commenters who stated that the manner 

in which releases have been handled in 

the past under different circumstances is 

not directly related to whether a 

particular release in the future will pose 

a threat to public health or welfare or 

the environment. The potential hazards 

of each release must be considered on a 

case-by-case basis. For this reason, and 

because of the data problems mentioned 

in the NPRM, the Agency has decided 

not to adjust RQs on the basis of release 

history and release potential at this 

time. 

b. Corrosivity. Two commenters 

supported the use of corrosivity as a 

criterion for adjusting RQs. A major 

difficulty in applying corrosivity as a 

criterion is developing a scale relating 

corrosivity to RQs that is useful for all 

CERCLA hazardous substances. None of 

the comments included a scale that the 

Agency considered adequate, and EPA 

has not identified a corrosivity scale 

that would be generally practicable. 

Therefore, corrosivity will not be used at 

this time as a criterion for adjusting 

RQs. 

E. Future RQ Adjustments 

1. Interim RQs 

As noted below in section V.G., 

adjusted RQs for 358 of the 698 CERCLA 

hazardous substances do not appear in 

today's rule. One commenter urged EPA 

to publish proposed RQs for these 

substances as quickly as possible. 

Today's Federal Register contains an 

NPRM proposing RQs for 105 of the 358 

substances not receiving an adjusted RQ 

in today's rule. EPA will propose RQ 

adjustments for the remaining 

substances as soon as sound technical 

evaluations for them are complete. 

Another commenter indicated that 

potential delays in performing such 

evaluations could result in an unfair 

reporting burden for many substances 

that will temporarily retain their present 

RQs. The commenter therefore 

recommended that EPA propose interim 

RQ adjustments for such substances 

based on existing information and 

scientific judgments. 

EPA disagrees. Proposing new 

temporary RQs for hazardous 

substances would be time-consuming in 

itself, and, because the temporary RQs 

would be based on incomplete analysis, 

they would be unfair to the regulated 

community and the general public. 

Interim levels would still need to be 

changed when RQ evaluations are 

completed. EPA will move expeditiously 

to complete its evaluations of the 

remaining CERCLA substances, but will 

not establish a set of interim RQs. 

2. New Data 

One commenter requested that 

provisions be specified for allowing RQ 

changes when new information relating 

to the primary criteria or BHP becomes 

available. This commenter felt that EPA 

should acknowledge the role of 

interested parties in effecting 

appropriate revisions to the final RQs 

and should clarify procedures for the 

submission of new data. 

EPA welcomes the submission of new 

data concerning the primary criteria and 

BHP at any time. RQs are based on the 

best data available at the time of 

promulgation, but they are subject to 

change on the basis of new information. 

The Agency will periodically review 

submitted data to ensure that RQs are 

not based on superseded information. 

F. Application ofthe Methodology and 

Criteria 

1. Introduction 

Many commenters voiced general 

support for EPA's choice of methodology 

and the results of the methodology. 

These commenters stated that the 

proposed RQ adjustments would 

increase the efficiency of the Superfund 

program, reduce burdens on the 

regulated community, and allow EPA to 

concentrate its resources on the releases 

which pose the potentially greatest 

threat to public health or welfare or the 

environment. 

The remainder of this section 

responds briefly to comments received 

by the Agency concerning the RQs> of 

various specific substances and 

discusses in greater detail the comments 

received concerning PCBs and unlisted 

hazardous wastes. 

2. Comments on RQs of Specific 

Substances 

The Agency received comments from 

over 100 commenters concerning the 

RQs of 90 individual substances and 12 

groups of waste streams. The majority of 

these comments suggested raising the 

RQs for specific substances. 

One commenter recommended several 

RQ changes on the basis of aquatic 

toxicity data recently compiled by the 

U.S. Department of the Interior. The 

Agency has reevaluated the RQs of 

several hazardous substances in light of 

these new data, and four of the 

substances singled out by the 

commenter have received new adjusted 

RQs. In addition, the new data were 

used to alter the proposed adjusted RQs 

of 12 other substances. Exhibit 6 lists the 

16 substances which received new 
P.18 

Federal Register / Vol. 50, No. 65 / Thursday, April 4, 1985 / Rules and Regulations 13471 

adjusted RQs on the basis of the new 

aquatic toxicity data. Statements by the 

same commenter contributed to a 

reexamination of the mammalian 

toxicity data for phosgene and the 

lowering of the phosgene RQ from 1000 

to 10 pounds." 

EXHIBIT 6.—-SUBSTANCES WHICH RECEIVED 

FINAL ADJUSTED RQS DIFFERENT FROM 

PROPOSED ADJUSTED RQs ON THE BASIS OF 

NEW AQUATIC TOXICITY DATA 

Substance Final 

RO 

Aldicarb 

4-Bromophenyl phenyl ether 

Butyl benzyl phthalate 

N-Butyl phthalate 

Dichlobenil 

4,6-Dinitro-o-cresol and salts 

Dinitrophenol (and 2,5- and 2,6-isomers) 

2,4-Dinitropheriol 

Diethyl phthaiate 

Kelthane 

Methomyl 

Pyrethrins 

2.4,5-T 

2,4,5-T Amines 

2,4,5-T Esters 

2,4,5-T Salts 

Some commenters suggested RQ 

changes for particular substances on the 

basis of volatility or particular incidents. 

Similarly, one commenter proposed new 

RQs for several waste streams based on 

the public impact of past releases of 

these wastes. However, as discussed in 

previous sections, neither volatility nor 

release history are currently being used 

to adjust RQs. The RQs of these 

substances and waste streams will 

therefore not be changed. 

Commenters suggested raising the 

RQs of four substances on the basis of 

biodegradability. Two of these 

substances—crotonaldehyde and 

pentachlorophenol—have already been 

examined for biodegradability and been 

found not to meet the criteria for an 

upward RQ adjustment. EPA has 

reexamined the third substance, 

ammonia, on the basis of both chronic 

toxicity and BHP (although ammonia is 

volatile, it is also highly water soluble) 

and has proposed for ammonia an 

adjusted RQ of 100 pounds in the NPRM 

published in today's Federal Register. 

EPA has adjusted the RQ of the fourth 

substance, methyl ethyl ketone, from 

1000 pounds to 5000 pounds on the basis 

of biodegradability. 

Several commenters suggested that 

the RQs of metals might be based on the 

metal compound RQs (for soluble salts) 

that were assigned under CWA section 

311. However, solid metal powders do 

not necessarily have the same effects as 

their soluble salts, and, therefore, the 

same RQs would not necessarily apply. 

Many commenters argued that the RQ 

of ammonia should be raised from its 

current level of 100 pounds under the 

CWA; they cited the volatility of 

ammonia, the fact that most ammonia 

releases occur into air, the fact that the 

aquatic toxicity of the ammonium ion is 

much lower than that of ammonia itself, 

and the biodegradability of ammonia. It 

was also suggested that the 100-pound 

RQ would create a burdensome 

reporting requirement. Ammonia has 

undergone reevaluation since the May 

25,1983 NPRM; based on this 

reevaluation, the NPRM in today's 

Federal Register proposes to retain the 

100-pound RQ for ammonia under 

CERCLA. The 100-pound RQ established 

under the CWA applies until a final 

adjusted RQ is promulgated. 

3. PCBs 

In the May 25,1983 NPRM, the Agency 

proposed to lower the RQ for PCBs to 

one pound from the original 10-pound 

level set under section 311 of the Clean 

Water Act. The lower RQ was based on 

more recent aquatic toxicity data. The 

Agency, acknowledged that because of 

the ubiquitous use of PCBs, it was 

concerned about the increased 

notification burden that might result 

from this proposed reduction of the PCB 

RQ. Comments were requested on these 

issues. 

All of the comments received on this 

issue objected to the Agency's proposal 

to reduce the PCB RQ to one pound. The 

major concern of the commenters was 

that the one-pound RQ would 

appreciably increase the number of -

reportable releases and the burden on 

the regulated community while 

negligibly improving the protection of 

public health or welfare or the 

environment. Most commenters argued 

that restrictions on the location of 

equipment containing PCBs, current PCB 

management regulations under TSCA, 

and existing industry good housekeeping 

practices with regard to PCBs make 

exposure to PCBs unlikely. 

Several commenters also expressed 

concern that significant over-reporting 

may dramatically increase the 

government's administrative costs for 

the notification program. Other 

commenters suggested alternative 

methods for estimating the number of 

PCB releases of different quantities for 

the purpose of calculating the economic 

effects of changing the PCB RQ. 

Several commenters questioned the 

validity of the aquatio toxicity data used 

by the Agency and the manner in which 

it was employed to set the proposed RQ. 

Also, two commenters cited data 

indicating that PCBs do not pose any 

serious threats to human health, even 

though the Agency had explained that 

the proposed PCB RQ was based on 

aquatic toxicity. 

After considering the comments 

received on the PCB RQ, the Agency has 

decided to defer any promulgation of a 

final PCB RQ until a future rulemaking. 

The Agency iscurrently evaluating PCBs 

to determine whether the RQ should be 

based on the primary criterion of 

potential carcinogenicity. Until a final 

RQ is promulgated for PCBs, the existing 

RQ of 10 pounds (established under the 

CWA) will remain in effect. 

4. Unlisted RCRA Wastes (ICRE 

Wastes) 

CERCLA section 101(14)(c) includes in ' 

the definition of hazardous substances 

"any hazardous waste having the 

characteristics identified under or listed 

pursuant to section 3001 of the Solid 

Waste Disposal Act. . . ." Therefore, 

solid wastes, as defined by RCRA, 

which exhibit one or more of the 

characteristics of ignitability, 

corrosivity, reactivity, or extraction 

procedure toxicity (ICRE) are 

considered CERCLA hazardous 

substances, even though they are not 

specifically listed under RCRA. The RQs 

of ICRE wastes are listed in Table 302.4 

under "Unlisted Hazardous Wastes." 

These RQs apply only to substances 

that are wastes prior to being released 

(see section IV.D.l. above). The RQ for 

ignitable, corrosive, or reactive unlisted 

wastes is 100 pounds, and unlisted 

hazardous wastes that exhibit 

extraction procedure (EP) toxicity have 

the reportable quantities listed in Table 

302.4. 

Some commenters suggested changing 

the RQ established for ignitable, 

corrosive, or reactive wastes. The 

comments that suggested raising the RQ 

for ICR wastes were based mainly on 

the assumption that a government 

response would seldom be required for 

releases of these wastes smaller than 

1000 pounds. However, each of these 

suggestions assumes some specific 

scenario and ignores the fact that an RQ 

only reflects the Agency's judgment that 

the federal government should be 

notified of releases to which a response 

might be necessary. Especially when 

releases are of unknown mixtures, 

conservatism is a sensible approach; 

therefore, the RQ is designed to cover all 

hazardous substances potentially 

present. With this in mind, the RQ for 

ICR wastes will remain as proposed at 

100 pounds. 

Two commenters suggested that the 

releaser be given the opportunity to 

report releases of reactive or ignitable 

wastes based on the primary criteria RQ 
13472 Federal Register / Vol. 50, No. 65 / Thursday, April 4, 1985 / Rules and Regulations 

P.19 

scales of Exhibits 3 and 4 in the NPRM 

(48 FR 23563). However, simply testing 

for the reactivity or ignitability of the 

waste does not further identify the 

composition of the waste; therefore, the 

waste is still unlisted. The primary 

criteria are designed to apply only to 

specific substances. Moreover, the' 

Agency has not determined that listed 

and unlisted wastes pose similar 

potential hazards. 

If an unlisted ICRE waste is analyzed 

and the concentrations of all of its 

hazardous components are identified, 

the waste is no longer an unlisted waste, 

but one characterized by its 

components. The specific substances 

present will then determine the 

applicable RQ in accordance with the 

Clean Water Act mixture rule (see 

section IV.D.3.b. above). For example, if 

a waste is known to be corrosive 

because of its sulfuric acid content, and 

no other CERCLA hazardous substances 

or other ICRE characteristics are 

present, the RQ of the waste is reached 

when 1000 pounds of sulfuric acid is 

released. If the aforementioned waste is 

a 25 percent solution of sulfuric acid in 

water, the RQ of the waste is not 

reached until 4000 pounds of the waste 

is released. 

Several commenters suggested that 

the RQ for an EP toxic waste should 

apply to the EP toxic constituents of the 

waste rather than to the waste itself. If 

the composition of the waste stream is 

completely known, the waste is no 

longer an unlisted waste, and the 

mixture rule will apply. If the hazardous 

constituents of the waste and their 

concentrations are not completely 

known, however, it is impossible to 

apply the mixture rule as these 

commenters suggested. Unlisted wastes 

that 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 

RQ given applies to the waste itself, not 

merely to the toxic constituent. A 

sentence has been added to § 302.5(b) to 

clarify this point. 

G. Summary of RQ Changes From the 

May 25, 1983 NPRM 

The May 25,1983 NPRM proposed 

raising the RQs for 177 CERCLA 

substances (including 15 waste streams) 

and lowering the RQs for 28 substances, 

leaving the RQs of 182 substances 

(including 11 waste streams) at their 

previous levels. On the basis of new 

aquatic toxicity data located by a 

commenter, the proposed adjusted RQs 

of 16 substances have been changed. 

Exhibit 6 lists these 16 substances. 

Similarly, new data on J3HP has led to a 

one-level increase in the adjusted RQ of 

furfural, and a reevaluation of 

mammalian toxicity data has led to a 

decrease in the phosgene RQ from 1000 

to 10 pounds. Applying BHP to 

substances exhibiting chronic toxicity 

has raised the adjusted RQs of two 

other substances. The decision not to 

apply BHP to substances for which fiveday degradation rates are insufficient to 

justify a one-level increase in RQ has 

resulted in a lower RQ for four 

substances. The use of data overlooked 

at the time of the NPRM has affected the 

adjusted RQs of four additional 

substances. 

The NPRM proposed adjusted RQs for 

47 substances (including 8 waste 

streams) that were subsequently 

selected for chronic toxicity and/or 

potential carcinogenicity assessment; -

these 47 substances will therefore 

remain at their statutory RQ levels 

pending future RQ adjustments. Of these 

47 substances, however, 23 (including 6 

waste streams) already had RQs of one 

pound on the basis of one or more of the 

other primary criteria. Further 

evaluation of chronic toxicity or 

potential carcinogenicity is unlikely to 

change these one-pound RQs, because 

there is no RQ level less than one pound 

and the analysis of the other primary 

criteria indicates that a one-pound RQ is 

appropriate (although new data on the 

primary criteria or on BHP may suggest 

otherwise). 

Table 302.4 in the May 25,1983NPRM 

incorrectly described eighteen 

substances as having one-pound 

statutory RQs under CERCLA; however, 

these substances had been assigned 

RQs under the Clean Water Act (40 CFR 

Parts 116 and 117.3). Exhibit 7 lists the 

eighteen substances and their correct 

statutory and (where appropriate) final 

RQs. 

In sum, final adjusted RQs now 

appear for 319 of 608 specific substances 

and 21 of 90 waste streams. Statutory 

RQs appear for the remaining 

substances.4 

For further information concerning 

these RQ changes, see the Technical 

Background Document to Support 

Rulemaking Pursuant to CERCLA 

Section 102, available for inspection at 

Room S-325, U.S. Environmental 

Protection Agency, 401 M Street, SW, 

Washington, D.C. 20460. 

H. Retention of Statutory RQ for Methyl 

Isocyanate 

The December 4,1984 release of 

methyl isocyanate (MIC) in Bhopal, 

India caused major loss of human life. 

This event pointed out the 

extraordinarily serious nature of MIC's 

acute toxicity. At this point, EPA is 

withdrawing its proposal to amend the 

RQ for MIC and is requesting further 

data on its toxicity. 

The one-pound statutory reporting 

requirement will continue to apply to 

releases of this hazardous substance 

until a rule adjusting its RQ is 

promulgated. 

EXHIBIT 7.—SUBSTANCES WITH RQs ASSIGNED UNDER THE CLEAN WATER ACT THAT 

THE MAY 25,1983 NPRM LISTED AS HAVING 

ONE-POUND STATUTORY RQs UNDER CERCLA 

Substance 

Aroclor 1016 

Aroclor 1221 

Aroclor 1232 

Aroclor 1242 

Aroclor 1248 

Aroclor 1254 _ 

Aroclor 1260 

o-Dichlorobenzone 

p-Dichlorobenzene 

1,2-Dichloropropane... 

1,3-Dichloropropene... 

2,4-Dinitrophenol 

2,4-Dinitrotoluene 

2,6-Okiitrotoluene 

2-Nitrophenol 

4-Nitrophenol 

2,4,5-TrichlorophonoL 

2,4,6-Trichlorophenol.. 

Correct 

CWA 

section 

311 RQ 

10 

10 

10 

10 

10 

10 

10 

100 

100 

5000 

5000 

1000 

1000 

1000 

1000 

1000 

10 

10 

Final 

RQ 

•10 

•10 

•10 

•10 

•10 

•10 

•10 

100 

too 

1000 

100 

10 

•1000 

•1000 

100 

100 

•10 

•10 

'Adjustments have been proposed for 105 of 

these substances in an NPRM that appears in 

today's Federal Register. These substances are 

noted by two number symbols (-*-*) in the "Pounds 

(Kg)" column of Table 302.4. 

• These substances were selected for evaluation of chronic 

toxicity and/or potential carcinogenicity and adjusted ROs 

will tjp proposed for them In a future rulemaking. 

/. Table 302.4 

1. Introduction 

Table 302.4 lists all of the CERCLA 

hazardous substances together with 

their adjusted and statutory RQs. The 

first part of the table lists the individual 

hazardous substances regulated under 

the statutes cited in CERCLA section 

101(14). The generic groups of chemicals 

designated under CWA section 307(a), 

such as "SILVER AND COMPOUNDS," 

are printed in capital letters and have no 

RQ assigned to them. These generic 

groups of chemicals could potentially 

encompass hundreds of specific 

compounds with varying toxicities; it is 

therefore not appropriate to establish a 

single RQ for each generic group. 

Although CERCLA notification 

requirements apply only to specific 

compounds for which RQs are listed in 

Table 302.4, CERCLA liability may still 

attach to releases of specific compounds 

that are within one of the generic 
P.20 

Federal Register / Vol. 50, No. 65 / Thursday, April 4, 1985 / Rules and Regulations 13473 

listings but not specifically listed in 

Table 302.4. 

The second part of the table contains 

the 90 hazardous waste streams 

designated under 40 CFR 261.31 and 

261.32 (RCRA F and K lists). The Agency 

designated many of these waste streams 

as hazardous under RCRA because of 

the presence of specific hazardous 

constituents in the waste streams as set. 

forth in Appendix VII of 40 CFR Part 

261. The Agency is assigning RQs for 

these waste streams based on these 

hazardous constituents. The primary 

criteria and BHP, discussed above, were 

applied to each hazardous constituent in 

order to derive an RQ value. If a waste 

stream in 40 CFR 261.31 and 261.32 has 

more than one hazardous constituent, 

the RQ assigned to the particular waste 

stream represents the lowest RQ 

associated with the hazardous 

constituents present in that waste 

stream. 

2. Minor Changes 

In addition to the changes in proposed 

RQs described above in Section G, the 

following minor changes in Table 302.4 

have been made: 

(1) The listing for Chromium D007, one 

of the constituents of the characteristic 

of EP toxicity under the "Unlisted 

Hazardous Wastes," will now be "total 

chromium" (although it may be changed 

to hexavalent chromium at some time in 

the future under proposed amendments 

to RCRA). It was listed incorrectly as 

hexavalent chromium (VI) in Table 302.4 

in the NPRM. 

(2) The RCRA waste numbers for the 

characteristics of ignitability (D001), 

corrosivity (D002), and reactivity (D003) 

are now included in Table 302.4. They 

were omitted from Table 302.4 in the 

NPRM. In addition, the waste 

identification numbers for the 

constituents of the characteristic of EP 

toxicity, and the waste identification 

numbers for wastes FOOl through K106, 

which were also omitted in the NPRM, 

are now properly included in the column 

for RCRA Waste Numbers in Table 

302.4. 

(3) In response to the suggestion of a 

commenter, the Table now notes that 

the RQ for asbestos is limited to friable 

forms of the substance; reporting of 

releases of other forms is not required, 

although other CERCLA liabilities may 

attach. 

VS. Reportable Quantity Adjustments 

Under Section 3111 of the Clean Water 

Act 

In the May 25,1983 NPRM, EPA 

requested comments on its proposal to 

make RQs adjusted under CERCLA the 

applicable RQs for purposes of reporting 

discharges of hazardous substances 

pursuant to section 311 of the Clean 

Water Act. Making RQs the same for 

substances listed under both statutes 

would make the notification 

requirements for the substances 

involved consistent and less confusing 

for the regulated community. 

Of nine comments received on the 

issue of adjusting CWA RQs, five were 

completely in favor of the Agency's 

proposal and agreed that it would 

alleviate much confusion. However, four 

comments indicated that such 

adjustment should proceed only for 

those substances for which CWA RQs 

would be raised. These commenters 

claimed that CWA RQs are based on 

aquatic toxicity, while CERCLA RQs 

must consider releases into other media. 

Thus, they reasoned, lowering CWA 

RQs based on criteria used to set 

CERCLA RQs would be unfair. 

EPA does not feel that different RQs 

under the two statutes would serve any 

purpose. Even if the CWA RQs were not 

lowered, releases-of CWA substances 

would still be reportable when released 

at CERCLA RQ levels because 

CERCLA's scope and jurisdiction fully 

encompass all hazardous substance 

discharges reportable under CWA The 

primary purpose of equalizing RQs 

under CERCLA and the CWA is to make 

the task of reporting releases less 

confusing for the regulated community. 

VII. Summary of Supporting Analyses 

A. Classification and Regulatory Impact 

Analysis 

Rulemaking protocol under Executive 

Order 12291 requires that proposed 

regulations be classified as "major1' or 

"non-major" for purposes of review by 

the Office of Management and Budget. 

According to the 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 the ability of 

United States-based enterprises to 

compete with foreign-based enterprises 

in domestic or export markets. 

The Regulatory Impact Analysis, 

available for inspection at Room S-325, 

U.S. Environmental Protection Agency, 

401 M Street, SW, Washington, D.C. 

20460, shows that today's regulation is 

"non-major'^because it results in a net 

cost savings of approximately $17 

million annually, of which about $2,8 

million annually will be saved by the 

regulated community (the remainder to 

be saved by the government).8 

B. Regulatory Flexibility Analysis 

The Regulatory Flexibility Act of 1980 

requires that a Regulatory Flexibility 

Analysis be performed for all rules that 

are likely to have "significant impact on 

a substantial number of small entities." 

Chapter 7 of the Regulatory Impact 

Analysis estimates the potential impact 

of today's regulation on a model small 

chemical firm. The chapter first 

estimates an upper-bound total annual 

cost of compliance by a small firm at 

$5,604 (in 1983 dollars) and then 

compares this figure to other measures 

of a small firm's economic status. Even 

with this extremely conservative 

estimate, the total cost per year of 

compliance is a negligible percentage of 

both the pre-tax annual cash flow and 

equity of the model small firm—a 

fraction of one percent for both 

measures. EPA therefore certifies that 

this regulation will not have a 

significant impact on a substantial 

number of small entities, and thus no 

Regulatory Flexibility Analysis is 

needed. 

C. Information Impact Analysis 

EPA anticipates that RQ adjustments 

will change the paperwork burden 

imposed on the regulated community for 

information collection associated with 

reporting releases. As estimated in the 

Regulatory Impact Analysis, today's 

regulation will reduce the paperwork 

burden of notification and 

recordkeeping on private parties by 

almost 50,000 hours. 

The information collection 

requirements contained in this rule are 

covered by the U.S. Coast Guard 

submission for information collection by 

the National Response Center. The 

requirements have been approved by 

the Office of Management and Budget 

(OMB) under the provisions of the 

Paperwork Reduction Act of 1980, 44 

U.S.C. 3501 et seq., and have been 

assigned OMB control number 2115-

0137. 

List of Subjects in W CFR Fart 302 

Air pollution control, Chemicals, 

Hazardous materials. Hazardous 

materials transportation, Hazardous 

substances, Intergovernmental relations. 

Natural resources, Nuclear materials, 

Pesticides and pests, Radioactive 

materials. Reporting and recordkeeping 

5

 These figures do not include the costs or 

benefits associated with the continuous release 

exemption. 
13474 Federal Register / Vol. 50, No. 65 / Thursday, April 4, 1985 / Rules and Regulations 

P.21 

requirements, Superfund, Waste 

treatment and disposal, Water pollution 

control. 

Dated: February 13,1985. 

Lee M. Thomas, 

•Administrator. 

1. 40 CFR is amended by adding Part 

302 as follows: 

PART 302—DESIGNATION, 

REPORTABLE QUANTITIES, AND 

NOTIFICATION 

Sec. 

302.1 Applicability, 

302.2 Abbreviations. 

302.3 Definitions. 

302.4 Designation of hazardous substances. 

302.5 Determination of reportable 

quantities. 

302.6 Notification requirements. 

302.7 Penalties. 

Authority: Section 102 of the 

Comprehensive Environmental Response, 

Compensation, and Liability Act of 1980, 42 

USC 9602; Sections 311 and 501(a) of the 

Federal Water Pollution Control Act, 33 USC 

1321 and 1361. 

§ 302.1 Applicability. 

This regulation designates under 

section 102(a) of the Comprehensive 

Environmental Response, 

Compensation, and Liability Act of 1980 

("the Act") those substances in the 

statutes referred to in section 101(14) of 

the Act, identifies reportable quantities 

for these substances, and sets forth the 

notification requirements for releases of 

these substances. This regulation also 

sets forth reportable quantities for 

hazardous substances designated under 

section 311(b)(2)(A) of the Clean Water 

Act. 

§302.2 Abbreviations. 

CASRN = Chemical Abstracts Service 

Registry Number 

RCRA=Resource Conservation and 

Recovery Act of 1976, as amended 

lb=pound 

kg=kilogram 

RQ=reportable quantity 

§302.3 Definitions. 

As used in this part, all terms shall 

have the meaning set forth below: 

"The Act", "CERCLA", or 

"Superfund" means the Comprehensive 

Environmental Response, 

Compensation, and Liability Act of 1980 

(Pub. L. 96-510); * 

"Administrator" means the 

Administrator of the United States 

Environmental Protection Agency 

("EPA"); 

"consumer product" shall have the 

meaning stated in 15 U.S.C. 2052; 

"environment" means (1) the 

navigable waters, the waters of the 

contiguous zone, and the ocean waters 

of which the natural .resources are under 

the exclusive management authority of 

the United States under the Fishery 

Conservation and Management Act of 

1976, and (2) any other surface water, 

ground water, drinking water supply, 

land surface or subsurface strata, or 

ambient air within the United States or 

under the jurisdiction of the United 

States; 

"facility" means (1) any building,' 

structure, installation, equipment, pipe 

or pipeline (including any pipe into a 

sewer or publicly owned treatment 

works), well, pit, pond, lagoon, 

impoundment, ditch, landfill, storage 

container, motor vehicle, rolling stock, 

or aircraft, or (2) any site or area where 

a hazardous substance has been 

deposited, stored, disposed of, or placed, 

or otherwise come to be located; but 

does not include any consumer product 

in consumer use or any vessel; 

"hazardous substance" means any 

substance designated pursuant to 40 

CFR 302; 

"hazardous waste" shall have the 

meaning provided in 40 CFR 261.3; 

"navigable waters" or "navigable 

waters of the United States means 

waters of the United States, including 

the territorial seas; 

"offshore facility" means any facility 

of any kind located in, on, or under, any 

of the navigable waters of the United 

States, and any facility of any kind 

which is subject to the jurisdiction of the 

United States and is located in, on,, or 

under any other waters, other than a 

vessel or a public vessel; 

"onshore facility" means any facility 

(including, but not limited to, motor 

vehicles and rolling stock) of any kind 

located in, on, or under, any land or nonnavigable waters within the United • 

States; 

"person" means an individual, firm, 

corporation, association, partnership, 

consortium, joint venture, commercial 

entity, United States Government, State, 

municipality, commission, political 

subdivision of a State, or any interstate 

body; 

"release" means any spilling, leaking, 

pumping, pouring, emitting, emptying, 

discharging, injecting, escaping, 

leaching, dumping, or disposing into the 

environment, but excludes (1) any 

release which results in exposure to 

persons solely within a workplace, with 

respect to a claim which such persons 

may assert against the employer of such 

persons, (2) emissions from the engine 

exhaust of a motor vehicle, rolling stock, 

aircraft, vessel, or pipeline pumping 

station engine, (3) release of source, 

byproduct, or special nuclear material 

from a nuclear incident, as those terms 

are defined in the Atomic Energy Act of 

1954, if such release is subject to 

requirements with respect to financial 

protection established by the Nuclear 

Regulatory Commission under Section 

170 of such Act, or for the purposes of 

Section 104 of the Comprehensive 

Environmental Response, 

Compensation, and Liability Act or any 

other response action, any release of 

source, byproduct, or special nuclear 

material from any processing site 

designated under section 102(a)(1) or 

302(a) of the Uranium Mill Tailings 

Radiation Control Act of 1978, and (4) 

the normal application of fertilizer; 

"reportable quantity" means that 

quantity, as set forth in this part, the 

release of which requires notification 

pursuant to this part; 

"United States" include the several 

States of the United States, the District 

of Columbia, the Commonwealth of 

Puerto Rico, Guam, American Samoa, 

. the United States Virgin Islands, the 

Commonwealth of the Northern 

Marianas, and any other territory or 

possession over which the United States 

has jurisdiction; and 

"vessel" means every description of 

watercraft or other artificial contrivance 

used, or capable of being used, as a 

means of transportation on water. 

§ 302.4 Designation of hazardous 

substances. 

(a) Listed hazardous substances. The 

elements and compounds and hazardous 

wastes appearing in Table 302.4 are 

designated as hazardous substances 

under section 102(a) of the Act. 

(b) Unlisted hazardous substances. A 

solid waste, as defined in 40 CFR 261.2, 

which is not excluded from regulation as 

a hazardous waste under 40 CFR 

261.4(b), is a hazardous substance under 

section 101(14) of the Act if it exhibits 

any of the characteristics identified in 40 

CFR 261.20 through 261.24. 

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 
Federal Register / Vol. 50, No, 65 / Thursday, April 4, 1985 / Rules and Regulations 13475 

"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 

Acenaphthene.-.. 

Acenaphthytene.. 

Acetakiehyda 

Acetaldehyde, chloroAcetaldehyde, trichloro- '_ 

Acetamide. N-<aminothioxoniethyl)-

Acetamide. N-(4-etr.oxyphenyf)-

Acetamide. N-9H-fluoren-2-ylAcetamide, 2-tluoro- -

Acetic add 

Acetic add, ethyl ester 

Acetic add. fluoro*. sodium salt 

Acetic add. lead salt...- .-

Acetic acid. thaltSumP) salt 

Acetic anhydride -

Acetimtdic add,N-C(methylcarbamoyl) oxylthio-, methyl 

ester. 

Acetone cyanohydrln.- - _ 

Acetonitrile .'. *..- - _ 

3-(alpha-Acetonylbenzyl)- 4-hydroxycoumarin and salts.. 

Acetophenone 

2-Aeetylamtnofluorer.e — _ ...-

Acetyl bromide - „ -

Acetyl chloride _ 

l-Acetyl-2-lhJourea.. 

Acroiein -

Acrytamide... 

Acrylic add. . 

Acrylonitrile -

Adipic acid... 

Alanine, 3-Cp-bis(2-chloroethyt)arnino3phenyl-,LAldicarb _ - : 

Aldrin 

Allyl alcohol 

Allyl chloride.... 

Aluminum phosphide -

Aluminum sulfate 

5-(Aminomethyf)-3-isaxazolol... 

4*Aminopyridine 

CASRN 

63329 

208868 

75070 

107200 

75876 

591082 

62442 

53963 

640197 

64197 

141786 

62748 

301042 

S6368S 

108247 

16752775 

67641 

75865 

75058 

81812 

98862 

53963 

506967 

75365 

591082 

107028 

79061 

79107 

107131 

124049 

148823 

116063 

309002 

107186 

107051 

20859738 

10943013 

2763964 

504245 

Regulatory Synonyms 

Ethanal 

Chloroacetaidehyde 

Chloral 

l-Acetyl-2-thiourea... 

Phenacetin 

2-Acetylaminotluoren8-, 

f-luoroacetamide 

Ethyl acetate -

Fluoroacetic acid, sodium salt.. 

Lead acetate——' 

Thallium(l) 

Mothomyl 

2-Propanone.. 

2-Methytlactonitrile 

Propanenitrile, 2-hydroxy-2-methytEthanehitrile... : 

Warfarin _ _ 

Ethanone, 1-phenylAcetamide. N-9H-ftuoren-2-yl- -.. 

Ethanoyf chloride.— 

Acetamide, f*Haminothioxomethyl)-. 

2-Propenal -

2-Propenamide -

2-Propenoic add -.... 

2-Propenenitrile 

Melphalan.. 

Propanal, 2-methyl-2-(methylthioK O-t(methylamino) 

carbonyfloxlme. 

1.2,3,4,10-10-Hexachtoro-1,4,4a,5,B,8a-nexahydro1,4:5,8-endo, exo- cflmethanonaphthalene. 

2-Propen-1-ol.- - . , - -

3{2H)-lsoxazotone. 5-(am!nomethyl)- „ 

4-Pyridinamine __. 

Statutory 

RO 

1 * 

1 * 

1000 

1 * 

V 

r 

i' 

r 

i * 

1000 

1 * 

r 

5000 

r 

1000 

r 

r 

10 

r 

r 

v 

1 * 

5000 

5000 

1 * 

1 

1" 

r 

100 

5000 

V 

r 

1 

100 

1000 

t* 

6000 

1 * 

1 * 

Code ! 

2 

2 

1,4 

4 

4 

4 

4 

4 

4 

1 

4 

4 

1.4 

4 

1 

4 

4 

1.4 

4 

4 

4 

4 

1 

1,4 

4 

1.2.4 

4 

4 

1,2.4 

1 

4 

4 

1.2,4 

1,4 

.1 

4 

1 

4 

4 

RCRA 

Waste 

Number 

U001 

P023 

U034 

P002 

U187 

U005 

P057 

U112 

P058 

U144 

U214 

P066 

U002 

P069 

U003 

P001 

U004 

U005 

U008 

P002 

POOS 

U007 

U008 

U009 

U150 

P070 

P004 

P006 

P007 

P008 

Rnal RQ 

Category 

X 

X 

C 

C 

X 

C 

x 

x 

B 

0 

D 

A 

D 

X 

0 

8 

D 

A 

O 

B 

D 

X 

D 

0 

C 

X 

D 

D 

B 

O 

X 

X 

Pounds(Kg) 

W (0.454) 

1## (0.454) 

1000 (454) 

1000 (454) 

11)1(0.454) 

1000 (454) 

1# (0.454) 

1# (0.454) 

100(45.4) 

5000 (2270) 

5000 (2270) 

10 (4.54) 

5000# (2270) 

\#« (0.454) 

5000 (2270) 

100 (45.4) 

5000 (2270) 

10 (4.54) 

5000 (2270) 

100 (45.4) 

5000 (2270) 

1 # (0.454) 

5000 (2270) 

5000 (2270) 

1000 (454)* 

1 (0.454) 

5000 (2270) 

5000 (2270) 

100# (45.4) 

5000 (2270) 

1# (0.454) 

1 (0.454) 

1# (0.454) 

100 (45.4) 

1000 (454) 

100 (45.4) 

5000 (2270) 

1000 (454) 

1000 (454) 
13476 Federal Register / Vol. 50, No. 65 / Thursday, April 4, 1985 / Rules and Regulations 

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

Hazardous Substance CASRN Regulatory Synonyms 

Statutory 

RQ Code ) 

RCRA 

Waste 

Number 

Final RQ 

Category 

Pounds(Kg) 

Amitrole 

Ammonia 

Ammonium acetate 

Ammonium benzoate 

Ammonium bicarbonate.. 

Ammonium bichromate ... 

Ammonium bifluoride 

. Ammonium bisulfite 

Ammonium carbamate.... 

Ammonium carbonate 

Ammonium chloride 

Ammonium chromate 

Ammonium citrate, dibasic.... 

Ammonium fluoborate.. 

Ammonium fluoride 

Ammonium hydroxide... 

Ammonium oxalate 

Ammonium picrate 

Ammonium silicofluoride.. 

Ammonium sulfamate 

Ammonium sulfide 

Ammonium sulfite 

Ammonium tartrate 

Ammonium thiocyanate... 

Ammonium thiosulfate..... 

Ammonium vanadate 

Amyl acetate 

sectertAniline 

Anthracene 

Antimony t t 

ANTIMONY AND COMPOUNDS.. 

Antimony' pentachloride 

Antimony potassium tartrate 

Antimony tribromide 

Antimony trichloride 

Antimony trifluoride 

Antimony trioxide 

Arodor 1016 

Aroclor 1221 ..„ 

Aroclor 1232.... 

Aroclor 1242. 

61825 

7664417 

631618 

1863634 

-1066337 

7789095 

1341497 

10192300 

1111780 

508876 

12125029 

7788989 

3012655 

13826830 

12125018 

1336216 

6009707 

5972736 

14258492 

131748 

16919190 

7773060 

12135761 

10196040 

14307438 

3164292 

1762954 

7783188 

7803556 

628637 

123922 

626380 

625161 

62533 

120127 

7440360 

1H-1,2,4-Triazol-3-amine... 

Phenol, 2,4,6-trinitro-, ammonium salt.. 

Vanadic add, ammonium salt.. 

Benzenamine... 

7847189 

28300745 

7789619 

10025919 

7783564 

1309644 

12674112 

11104282 

11141165 

53469219 

Polychlorinated Biphenyls (PCBs).. 

Polychlorinated Biphenyls (PCBs).. 

Polychlorinated Biphenyls (PCBs).. 

PolychlorinatedBiphenyls (PCBs).... 

r 

100 

5000 

5000 

5000 

1000 

5000 

5000 

5000 

5000 

5000 

1000 

5000 

5000 

5000 

1000 

5000 

r 

1000 

5000 

5000 

5000 

5000 

5000 

5000 

r 

1000 

P009 

1000 

r 

1* 

r 

1000 

1000 

1000 

1000 

5000 

10 

10 

10 

10 

1.4 

2 

2 

2 

1,2 

1.2 

1.2 

1.2 

U012 

Mt (0.454) 

100## (45.4) 

5000 (2270) 

50O0 (2270) 

5000 (2270) 

1000# (454) 

5000## (2270) 

5000 (2270) 

5000 (2270) 

5000 (2270) 

5000 (2270) 

1000# (454) 

5000 (2270) 

5000 (2270) 

100 (45.4) 

1000 (454) 

5000 (2270) 

10 (4.54) 

1000 (454) 

5000 (2270) 

100 (45.4) 

5000 (2270) 

5000 (2270) 

5000 (2270) 

5000 (2270) 

1000 (454) 

5000 (2270) 

D 

X 

X 

C 

B 

C 

C 

C 

C 

A 

A 

A 

A 

5000 (2270) 

t#» (0.454) 

1## (0.454) 

1000 (454) 

100 (45.4) 

1000 (454) 

1000(454) 

1000 (454) 

1000 (454) 

10l» (4.54) 

10# (4.54) 

10# (4.54) 

10# (4.54) 
Federal Register / Vol. 50, No. 65 / Thursday, April 4, 1985 / Rules and Regulations 13477 

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

Hazardous Substance 

ARSENIC AND COMPOUNDS 

[((amlnocarbony!)oxy)methyl]- 1,1a,2,8,8a,8b* 

hexahydro-8a-methoxy-5-methyl-. 

Benzenamine, 4,4'-methylenebis(2-chloro- -

CASRN 

12672296 

11097691 

11096825 

7440382 

1327522 

7776394 

1303328 

1327533 

1303282 

1303282 

7784341 

1327533 

1303339 

692422 

1332214 

492808 

115026 

151564 

50077 

/ 

542621 

56495 

225514 

225514 

98873 

56553 

56553 

57976 

62533 

492808 

106478 

3165933 

60117 

• 101144 

636215 

99558 

100016 

71432 

101553 

- 108907 

100447 

95501 

Regulatory Synonyms 

/ 

Benzolalanthracene 

Benzo[a)anthracene 

o-Dichlorobenzene 

RQ 

10 

10 

10 

r 

r 

r 

5000 

5000 

5000 

5000 

5000 

5000 

5000 

10 

1000 

1000 

100 

100 

100 

Statutory 

Code) 

1,2 

1,2 

1.2 

2,3 

4 

2 

1 

1.4 

1.4 

1,4 

1 

1,4 

1 

4 

2,3 

4 

4 

4 

4 

1,4 

4 

.4 

4 

4 

2.4 

2.4 

4 

1.4 

4 

4 

4 

4 

4 

4 

4 

4 

1.2,3,4 

2.4 

1.2,4 

1,4 

1.2.4 

RCRA 

Waste 

Number 

P010 

P012 

P011 

P011 

P012 

P038 

U014 

U015 

P054 

U010 

P013 

U157 

U016 

U016 

U017 

U018 

U018 

U094 

U012 

U014 

P024 

U049 

U093 

U158 

U222 

U181 

P077 

U019 

U030 

U037 

P028 

U070 

Category 

A 

A 

A 

X 

X 

0 

0 

0 

D 

D 

D 

D 

X 

X 

X 

X 

X 

X 

A 

X 

X 

X 

O 

X 

X 

X 

D 

X 

C 

X 

X 

X 

X 

X 

D 

C 

B 

B 

B 

B 

Final RQ 

Pounds(Kg) 

10# (4.54) 

10# (4.54) 

10# (4.54) 

1 #(0.454) 

1# (0.454) 

5000# (2270) 

50O0# (2270) 

50O0#(2270) 

5000# (2270) 

5000# (2270) 

5000# (2270) 

5000# (2270) 

1# (0.454) 

Mt (0.454) 

1# (0.454) 

1# (0.454) 

1# (0.454) 

Mt (0.454) 

10 (4.54) 

Mt (0.454) 

1# (0.454) 

Mt (0.454) 

5000 (2270) 

Mt (0.454) 

Mt (0.454) 

Mt (0.454) 

5000 (2270) 

Mt (0.454) 

1000 (454) 

Mt (0.454) 

Mt (0.454) 

Mt (0.454) 

1# (0.454) 

10 (0.454) 

5000 (2270) 

10000 (454) 

100 (45.4) 

100 (45.4) 

1000 (45.4) 

100 (45.4) 
13478 Federal Register / Vol. 50, No. 65 / Thursday, April 4, 1985 / Rules and Regulations 

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

Hazardous Substance CASRN Regulatory Synonyms 

Statutory 

RQ Code) 

RCRA 

Waste 

Number 

Final RQ 

Category 

Bounds(Kg) 

Benzene, 1,3-dichloro-.. 

Benzone, 1,4-dichloro-.. 

Benzene, dichloromethylBenzene, 2,4-diisocyanatomethyl*. 

Benzene, dimethyl 

Benzene, hexachtoro-...- — 

Benzene, hexahydro-..._ -

Benzene, hydroxy. -

Benzene, methyl- _ - -..., 

8enzerie, 1 -methyt-2,4-dinitro- -

Benzene. I -mothyt-2,6-dinitro- _ _ 

Benzene, 1,2-methylenedioxy*4-allyt-..- , 

Benzene, 1,2-methylenedioxy-4-propenyt-.„ 

Benzene, 1,2-methytenedloxy-4-propylBenzene, 1-methylethylBenzene, nitro- _ _ 

Benzene, pentachloro* -

Benzene, pentachloronitro- _ 

Benzene, 1,2.4,5-retrachloro-.._ 

Benzene, trichloromethyl- _ 

Benzene, 1.3.5-trinrtroBenzeneacetic acid, 4-chloro-atpha-(4-chlorophenyl). 

alpha-hydroxy-, ethyl ester. 

1,2-Benzenedicarboxylic add anhydride 

t,2-Benzenedicarboxylic acid,[bis(2-ethylhexyl)) ester.. 

1,2-Benzenedicarboxylic acid.diburyt ester „ 

1.2.Benzonedicarboxylic acid.diethyl ester 

1,2-Benzenedicarboxylic acid.dimethyl ester 

1,2-Benzenedicarboxylic add,dl*n-octyt ester 

1,3-Benzenediol.. 

1,2-Benzenediol,4-[1-hydroxy-2-(methylamino)ethyl)-.. 

Bonzenesultonic acid chloride 

Benzenesulfonyl chloride 

Benzenethiol 

Benzidine 

1,2-Benzisothi8zolin-3-one,1,1-dioxide, and salts 

Benzota]anthracene 

Benzo[b]Nuoranthene... 

Berizo(k)ftuoranthene .... 

541731 

98873 

584849 

91087 

26471625 

1330207 

108383 

95476 

106423 

118741 

110827 

108952 

108883 

121142 

606202 

94597 

120581 

94586 

98828 

98953 

608935 

82688 

95943 

98077 

99354 

510156 

85449 

117817 

84742 

84662 

131113 

117840 

108463 

51434 

98099 

98099 

108985 

92875 

81072 

56553 

205992 

207089 

1,3-Dichlorobenzene.. 

m-Dichlorobenzene 

1,4-Dichlorobenzene... 

p-Dichlorobenzene 

Banzai chloride 

Toluene diisocyanate.. 

Xylene.. 

Hexachlorobenzene 

Cyclohexane , 

Phenol 

Toluene :. 

2,4-Dinltrotoluene 

2,6-Oinitrotoluene 

Safrole „ 

Isosafrole ! 

Dihydrosafrole -

Cumene 

Nitrobenzene — ... 

Pentachlorobenzene 

Pentachloronitrobenzene 

1,2,4,5*Tetrachlorobenzene.. 

Benzotrichloride 

sym-Trinitrobenzene 

Ethyl 4,4'-dtch!orobenzHate... 

Phthalic anhydride 

Bis(2-ethylhexyl)phthalate.. 

n-Butyl phthalate 

Dibutyl phthalate 

Di-n-butyi phthalate 

Diethyl phthalate 

Dimethyl phthalate „ 

Di-n-octyl phthalate _. 

Resordnol 

Epinephrine 

Benzenesulfonyl chloride 

Benzenesulfonic acid chloride.. 

Thiophenol 

(1.1'-Biphenyl)-4,4'diamine 

Saccharin and salts 

BenzCalanthracene... 

1,2-Benzanthracene 

r 

1000 

1000 

1000 

1000 

1000 

f 

f 

r 

r 

1000 

i* 

r 

r 

r 

i" 

r 

r 

r 

r 

r 

1000 

i* 

r 

r 

r 

r 

1.2,4 

4 

4 

2,4 

1,4 

1.2,4 

1,2,4 

1.2.4 

1,2,4 

4 

4 

4 

4 

1,2,4 

4 

4 

2.4 

1.2.4 

2.4 

2.4 

2,4 

1.4 

4 

4 

4 

4 

2.4 

4 

2,4 

2 

2 

U072 

U017 

U223 

U239 

U127 

U056 

U188 

U220 

U105 

U106 

U203 

U141 

U090 

U055 

U169 

U183 

U185 

U207 

U023 

U234 

U038 

U190 

U028 

U069 

U088 

U102 

U107 

U201 

P042 

U020 

U020 

P014 

U021 

U202 

U018 

100 (45.4) 

100 (45.4) 

5000 (2270) 

100 (45.4) 

1000 (4S4) 

Mt (0.454) 

1000 (454) 

100000 (454) 

1000 (454) 

10000 (454) 

10000 (454) 

10 (0.454) 

10(0.454) 

10 (0.454) 

5000 (2270) 

1000 (454) 

1 00 (0.454) 

10 (0.454) 

5000 (2270) 

10 (0.454) 

1 00 (0.454) 

10 (0.454) 

5000 (2270) 

10 (0.454) 

10 (4.54) 

1000 (454) 

5000 (2270) 

5000 (2270) 

5000 (2270) 

1000 (454) 

100 (45.4) 

100 (45.4) 

100 (45.4) 

10 (0.454) 

10 (0.454) 

10 (0.454) 

10 (0.454) 

10 (0.454) 
Federal Register / Vol. 50, No. 65 / Thursday, April 4, 1985 / Rules and Regulations 13479 

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

Hazardous Substance CASRN Regulatory Synonyms 

Statutoiy 

RO Code) 

RCRA 

Waste 

Number 

Final RO 

Category 

Pounds(Kg) 

Benzo[i,tOf!uorene...- -

Benzoic acid _ 

Benzonitrile 

Benzofghilperylene 

Benzo[a)pyrene 

3,4-Benzopyrene 

p-Benzoquinone .- - -... 

Benzotrichloride -

Benzoyl chloride - -... 

1,2-Benzphenanthrene _.. 

Benzyl chloride 

Beryllium tt. -

BERYLLIUM AND COMPOUNDS.. 

Beryllium chloride _ 

Beryllium dust -

Beryllium fluoride.. 

Beryllium nitrate .... 

alpha - BHC 

beta - BHC 

gamma • BHC.. 

delta - BHC _ 

2.2'-8ioxirane -

(1.1'-Biphenyl)-4,4'diamine 

(1.1'-Biphenyi)-4.4'diamine,3,3'dichloro-

(1,1'-Bipheny1)-4.4'diamine,3,3'dimethoxy-

(1,1 'Biphenyl)-4,4'-diamine,3,3'-dimethyl-.. 

Bis(2-chloroethoxy) methane 

Bis (2-chloroethyl) ether 

206440 

65850 

100470 

191242 

50328 

50328 

106514 

98077 

Fluoranthene _ 

3,4-Benzopyrene 

Benzo[a)pyrene 

1,4-Cyclohexadienedione.. 

Benzene, trichloromisthyt*. 

218019 

100447 

7440417 

Chrysene 

Benzene, chloromethyl-..... 

Beryllium dust 

7787475 

7440417 

7787497 

13597994 

7787555 

319846 

319857 

Beryllium 

Hexachlorocyclohexane (gamma isomer).. 

Lindane 

6is(2-cnioroisopropyt) ether 

8is(ch!orofltethyl) ether _ _ _.. 

Bisldimothylthiocarbamoyl) disulfide -

Bis(2-ethylhexyt)phtha!ate.._ 

Bromine cyanide - — — 

Bromoacetone ...- -. -... 

Bromoform -...:. _.. 

4-Bromophenyl phenyl ether 

Brudne- — _ 

1.3-Butadiene, 1.1,2,3,4.4-hexach,oro- _. 

I-Butanamine. N-butyl-N-nitroso- - ...... 

Butanoic add, 4-(bis(2-chloroethyl)amino]t)enzene*. 

1-Butanol 

2-Butanone _ _ „ 

319868 

1464535 

92875 

91941 

119904 

119937 

111911 

111444 

108601 

542881 

137268 

117817 

506683 

598312 

75252 

101553 

357573 

87883 

924163 

305033 

71363 

78933 

1.2:3,4-Diepoxybutane 

Benzidine - „ 

3.3'-Dichlorobenzidine 

3,3'-Dlmethoxybenzidine 

3,3'-Dimethylbenzidine 

Ethane, 1.1'-[methylenebis(oxy)]bis(2-chloro-.. 

Dichloroethyl ether 

Ethane, l,r-oxybls[2-chloroPropane. 2^'-oxybis(2-chloro* -

Methane, oxybts'chtoro* 

Thiram 

1.2-Benzenedicarboxytic add. [bis(2-ethylhexy1)] ester... 

Cyanogen bromide - „ 

2-Propanone. 1-bromo- -

Methane, tribromo- - -

Benzene, 1 -bromo-4-phenoxy- -

Strychnid.n-10-one, 2.3-dimethoxy-. 

Hexachlorobutadiene. 

N-Nitrosodi-n-butytamine — 

Chlorambucil 

n-Butyl alcohol 

Methyl ethyl Ketone.. 

1" 

5000 

1000 

1* 

1" 

r 

r 

i

-

1000 

i* 

100 

f 

r 

5000 

i" 

5000 

5000 

1* 

V 

1 

r 

v 

r 

i" 

v 

i* 

r 

r 

v 

i* 

r 

1* 

v 

r 

2,4 

1 

i 

2 

2.4 

2.4 

4 

4 

1 

2.4 

1.4 

2.3,4 

2 

1 

2,3.4 

1 

1 

2 

2 

1,2,4 

2 

4 

2.4 

2.4 

4 

4 

2,4 

2.4 

2.4 

4 

4 

2.4 

4 

4 

2.4 

2.4 

4 

2,4 

4 

U120 

U022 

U022 

U197 

U023 

U050 

P028 

P0I5 

U129 

U08S 

U021 

U073 

U091 

U095 

U024 

U025 

U027 

P016 

U244 

U028 

U246 

P017 

U225 

U030 

P018 

U12S 

U172 

U035 

U031 

U159 

D 

X 

O 

D 

X 

X 

X 

X 

X 

X 

X 

X 

X 

C 

X 

c 

X 

A 

X 

c 

c 

8 

B 

B 

X 

X 

X 

D 

D 

100 (0.454) 

, 5000 (2270) 

5000 (2270) 

100 (0.454) 

10 (0.454) 

10 (0.454) 

100 (0.454) 

10 (0.454) 

1000 (454) 

10 (0.454) 

1000 (45.4) 

10(0.454) 

50000 (2270) 

10 (0.454) 

50000 (2270) 

50000 (2270) 

10 (0.454) 

10 (0.454) 

10(0.454) 

100(0.454) 

10 (0.454) 

10(0.454) 

10(0.454) 

10 (0.454) 

10 (0.454) 

1000 (454) 

10 (0.454) 

1000 (454) 

10 (0.454) 

10 (4.54) 

10 (0.454)' 

1000 (454) 

1000 (454) 

100 (45.4) 

100 (45.4) 

100 (45.4) 

10 (0.454) 

10 (0.454) 

10 (0.454) 

5000 (2270) 

5000(2270) 
13480 Federal Register / Vol. 50, No. 65 / Thursday, April 4, 1985 / Rules and Regulations 

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

Hazardous Substance Regulatory Synonyms 

Statutory 

Code) 

RCRA 

Waste 

Number 

Final RQ 

Category 

Pounds(Kg) 

2-Butanone peroxide.. 

2-Butenal 

2-Butene, 1,4-dichloro-. 

Butyl acetate 

isosectertn-Butyl alcohol.. 

Butylamine „ 

isosecsectertButyl benzyl phthalate... 

n-Butyl phthalate 

Butyric add... 

isoCacodylic acid 

Cadmium 11 

Cadmium acetate 

CADMIUM AND COMPOUNDS 

Cadmium bromide , 

Cadmium chloride 

Caldum arsenate 

Calcium arsenite 

Calcium carbide 

Caldum chromate 

Calcium cyanide 

Calcium dodecylbenzene sulfonate 

Calcium hypochlorite 

Camphene, octachloroCaptan 

Carbamic acid, ethyl ester 

Carbamic acid, methylnitroso-.ethyl ester.. 

Carbamide, N-ethyl-N-nitrosoCarbamide, N-methyl-N-nitrosoCarbamide, thioCarbamimidoselenoic acid 

Carbamoyl chloride, dimethylCarbaryl 

Carbofuran 

Carbon bisulfide 

- Carbon disulfide 

Carbonic acid, dithallium (I) salt 

Carbonochloridic add, methyl ester 

Carbon oxyfluoride 

123739 

4170303 

764410 

123864 

110190 

105464 

540885 

71363 

109739 

78819 

513495 

13952846 

75649 

85687 

107926 

79312 

75605 

7440439 

543908 

Methyl ethyl ketone peroxide.. 

Crotonaldehyde....." 

1,4-Dichloro-2-buteno.. 

1,2-Benzenedicarboxylic acid.dibutyl ester... 

Dibutyl phthalate -

Di-n-butyl phthalate 

Hydroxydimethylarsine oxide.. 

7789426 

10108642 

7778441 

52740166 

75207 

13765190 

592018 

26264062 

7778543 

8001352 

133062 

51796 

615532 

759739 

684935 

62566 

630104 

79447 

63252 

1563662 

75150 

75150 

6533739 

79221 

353504 

Chromic acid, caldum salt.. 

Toxaphene... 

Ethyl carbamate (Urethan).... 

N-Nitroso-N-methyturethane.. 

N-Nitroso-N-ethyturea 

N-Nitroso-N-methylurea 

Thiourea 

Selenourea 

Dimethytcarbamoyl chloride.. 

Carbon disulfide 

Carbon bisulfide 

Thallium(l) carbonate 

Methyl chlorocarbonate.. 

Carbonyl fluoride 

f 

100 

r 

5000 

r 

1000 

r 

100 

5000 

r 

r 

•100 

r 

100 

100 

1000 

1000 

5000 

1000 

10 

1000 

100 

1 

10 

r 

r 

r 

r 

r 

r 

i* 

100 

10 

5000 

5000 

1* 

r 

r 

4 

1,4 

4 

1 

4 

1 

2 

1,2,4 

1 

4 

2 

1 

2 

1 

1 

1 

1 

1 

1,4 

1.4 

1 

1 

1,2.4 

1 

4 

4 

4 

4 

4 

4 

4 

1 

1 

1.4 

1.4 

4 

4 

4 

U160 

U053 

U074 

U031 

U069 

U136 

U032 

P021 

U238 

U178 

U176 

U177 

U219 

P103 

U097 

P022 

P022 

U215 

U156 

U033 

B 

B 

C 

C 

A 

C 

A 

C 

A 

X 

A 

X 

X 

X 

X 

X 

X 

X 

B 

A 

D 

0 

X 

C 

C 

10 (4.54) 

100 (45.4) 

I (0.454) 

5000 (2270) 

5000 (2270) 

1000 (454) 

100 (45.4) 

10 (4.54) 

5000 (2270) 

t0 (0.454) 

10 (0.454) 

1000 (45.4) 

1000 (45.4) 

1000 (45.4) 

10000 (454) 

10000 (454) 

10 (4.54) 

10000 (454) 

10 (4.54) 

1000 (454) 

10(4.54) 

10 (0.454) 

1000 (4.54) 

10 (0.454) 

10 (0.454) 

10(0.454) 

10 (0.454) 

10 (0.454) 

1 00 (0.454) 

10 (0.454) 

100 (45.4) 

10 (4.54) 

500000 (2270) 

500000 (2270) 

1 00 (0.454) 

1000 (454) 

1000 (454) 
Federal Register / Vol. 50, No. 65 / Thursday, April 4, 1985 / Rules and Regulations 13481 

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

Hazardous Substance CASRN Regulatory Synonyms 

Statutory 

Code) 

RCRA 

Waste 

Number 

Final RQ 

Category 

Pounds(Kg) 

Carbon tetrachloride 

Carbonyl chloride 

Carbonyl fluoride *.. 

Chloral - , 

Chlorambucil 

CHLORDANE (TECHNICAL MIXTURE AND 

METABOLITES). 

Chlordane.. 

Chlordane, technical... 

CHLORINATED BENZENES 

CHLORINATED ETHANES _. 

CHLORINATED NAPHTHALENE.. 

CHLORINATED PHENOLS 

Chlorine „ 

Chlorine cyanide 

Chlornaphazine..' 

Chloroacetaldehyde 

CHLOROALKYL ETHERS 

p-Chloroaniline 

Chlorobenzene ..... 

4-Chloro-m-cresol 

p-Chloro-m-cresol.. 

Chlorodibromomethane „ 

1 -Chloro-2,3-epoxypropane.. 

Chloroethane 

2-Chloroethy! vinyl ether 

Chloroform 

Chloromethyl methyl ether.. 

beta-Chloronaphthalene 

2-Chloronaphthalene.. 

2-Chlorophenol.. 

o-Chlorophenol... 

4-Chlorophenyl phenyl ether 

1 -(o-Chlorophenyl)thiourea 

3-Chloropropionitrile 

Chlorosuflonic acid 

4-Chloro-o*toluidine, hydrochloride... 

Chlorpyrifos „ 

Chromic acetate -

56235 

75445 

353504 

75876 

305033 

Methane, tetrachloroPhosgene 

Carbon oxyfluoride 

Acetaldehyde, trichloroButanoic add, 4-[bis(2-ch!oroe!hyl)amino]benzene-. 

Chlordane, technical 

4,7-Methanoindan, 1,2,4,5,6,7,8,8-octachlorc- 3a,4,7,7atetrahydroChlordane 

4,7-Methanoindan, 1,2.4,5.6,7,8,8-octachloro- 3a,4,7,7atetrahydro7782505 

506774 

494031 

107200 

Cyanogen chloride 

2-Naphthylamine, N,N-bis(2-chloroethyl)-. 

Acetaldehyde, chloro106478 

108907 

59507 

59507 

124481 

106898 

75003 

110758 

67663 

107302 

91587 

91587 

95578 

95578 

7005723 

5344821 

542767 

7790945 

3165933 

2921882 

1066304 

Benzenamine, 4-chloro-.. 

Benzene, chlorop-Chloro-m-cresol 

Phenol, 4-chloro-3-methyl4-Chloro-m-cresol 

Phenol, 4-chloro-3-methyl* 

Epichlorohydrin 

Oxirane. 2-(chloromethyt)-

Ethene, 2-chloroethoxyMethane, trichloro* 

Methane, chloromethoxy-.. 

2-Chloronaphthalene 

Naphthalene, 2-chlorobeta-Chloronaphthalene... 

Naphthalene, 2-chloroo-Chlorophenol.... 

Phenol, 2-chloro* 

2-Chlorophenol 

Phenol, 2-chloro* 

Thiourea. (2-chlorophenyl)-. 

Propanenitrile. 3-chloroBenzenamine, 4-chloro-2-methyi-,hydrochloride... 

5000 

5000 

r 

r 

r 

10 

10 

r 

i* 

i* 

i* 

100 

1* 

1 * 

1* 

1000 

1" 

r 

5000 

1* 

i" 

1 

1000 

1.2.4 

1,4 

4 

4 

4 . 

2 

1,2.4 

1.2,4 

2 

2 

2 

2 

1 

1.4 

4 

4 

2 

4 

1,2.4 

2.4 

2.4 

2 

1.4 

2 

2,4 

1.2,4 

4 

2.4 

2.4 

2,4 

U211 

P095 

U033 

U034 

U035 

U036 

U036 

P033 

U026 

P023 

P024 

U037 

U039 

U039 

U041 

U042 

U044 

U046 

U047 

U047 

U048 

U048 

P026 

P027 

50000 (2270) 

10 (4.S4) 

1000 (454) 

10(0.454) 

10 (0.454) 

10 (0.454) 

Iff (0.454) 

10 (4.54) 

10 (4.54) 

10 (0.454) 

1000 (454) 

1000 (454) 

100 (45.4) 

5000 (2270) 

5000 (2270) 

100 (45.4) 

10000 (454) 

100 (0.454) 

1000 (454) 

50000 (2270) 

10 (0.454) 

5000 (2270) 

5000 (2270) 

100 (45.4) 

100 (45.4) 

5000 (2270) 

100 (45.4) 

1000 (454) 

1000 (454) 

10 (0.454) 

1 (0.454) 

100000 (4"4) 
13482 Federal Register / Vol. 50, No. 65 / Thursday, April 4, 1985 / Rules and Regulations 

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

Hazardous Substance 

CHROMIUM AND COMPOUNDS 

COPPER AND COMPOUNDS _ 

m0-

Pm0-

PCYANIDES 

specified. 

CASRN 

11115745 

7738945 

13765190 

10101538 

7440473 

10049055 

218019 

7789437 

544183 

14017415 

N.A. 

7440508 

544923 

56724 

8001589 

1319773 

108394 

95487 

• 106445 

1319773 

108394 

95487 

106445 

123739 

4170303 

98828 

142712 

12002038 

7447394 

3251238 

5893663 

7758987 

10380297 

815827 

57125 

• 460195 

506683 

506774 

106514 

110827 

108941 

77474 

50180 

Regulatory Synonyms 

2H-1,3,2-Oxazaphosphorine,2-tbis(2-chloroethyl)amino] 

' tetrahydro-2-oxide. 

RO 

1000 

1000 

1000 

1* 

1* 

1000 

r 

1000 

1000 

1000 

r 

r 

r 

1* 

10 

r 

1000 

1000 

100 

r 

100 

100 

10 

100 

100 

10 

100 

100 

r 

r 

r 

r 

10 

r 

1000 

r 

1 

r 

Statutory 

Code) 

1 

1.4 

1 

2 

2 

s • 

2,4 

1 

1 

1 

3 

2 

2 

4 

1 

4 

1,4 

1,4 

1.4 

4 

1 

1 

1 

1 

1 

1 

1 

1 

2 

4 

4 

4 

1,4 

4 

1,4 

4 

1,2,4 

4 

RCRA 

Waste 

Number 

U032 

U050 

1 

P029 

U051 

U052 

U052 

U053 

U055 

P030 

P031 

U246 

P033 

U197 

U056 

U057 

U130 

U058 

Category 

C 

C 

C 

. x 

C 

X 

C 

C 

C 

X 

X 

A 

A 

X 

c 

c 

B 

D 

B 

B 

A 

B 

B 

A 

B 

B 

A 

B 

C 

A 

X 

C 

D 

X 

X 

Final RQ 

Pounds(Kg) 

10000 (454) 

10000 (454) 

100000 (454) 

10 (0.454) 

100000 (454) 

10 (0.454) 

1000(454) 

1000 (454) 

1000 (454) 

10 (0.454) 

100 (0.454) 

10 (4.54) 

10 (4.54) 

10 (0.454) 

100000 (454) 

100000 (454) 

100 (45.4) 

5000 (2270) 

100 (45.4) 

1000 (45.4) 

1000 (4.54) 

100 (45.4) 

100 (45.4) 

1000 (4.54) 

100 (45.4) 

10000 (45.4) 

10 (4.54) 

100 (45.4) 

1000 (454) 

10 (4.54) 

100 (0.454) 

1000(454) 

5000 (2270) 

10 (0.454) 

10 (0.454) 
P.30 

Federal Register / Vol. 50, No. 65 / Thursday, April 4, 1985 / Rules and Regulations 13483 

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

Hazardous Substance CASRN Regulatory Synonyms 

Statutory 

RQ Code) 

RCRA 

Waste 

Number 

Final RQ 

Category 

Pounds(Kg) 

2,4-D Acid.. 2,4-D, salts and esters 

2,4-Dichlorophenoxyacetic acid, salts and esters 

2,4-D Esters... 

2.4-D, salts and esters... 

Daunomycin 

94111 

94791 

94804 

1320189 

1928387 

1928616 

1929733 

2971382 

25168267 

53467111 

94757 

20830813 

2,4-D Acid 

2,4-Dichlorophenoxyacetic acid, salts and esters 

5,12-Naphthacenedione, (8S-cis)-8-acetyl-10-f.3-am.no2,3,6-trideoxy- alpha-L-lyxo- hexopyranosyl)oxy]-

7,8,9,10-tetrahydro- 6,0,11-trihydroxy- 1-methoxy-. 

DDD.. 4,4' DDD 

Dichlorodiphenyl dichloroethane 

TDE 

DDD ... 

Dichlorodiphenyl dichloroethane 

TDE 

DDE 

4.4' DDE... 

DDT , 

4,4'DDT.. 

72559 

72559 

50293 

50293 

4,4' DDE. 

DDE 

4,4' DDT 

Dichlorodiphenyl trichloroethane 

DDT 

Dichlorodiphenyl trichloroethane 

DDT AND METABOLITES... 

Decachlorooctahydro-1,3,4-metheno-2H-cydobuta[c,d]-

pentalen-2-one. 

Diallate 

Diamine 

Diaminotoluene.. 

Diazinon 

Dibenz[a.h]anthracene.. 

1,2:5,6-Dibenzanthracene.. 

Dibenzota.hlanthracene.. 

1,2:7,8-Dibenzopyrene 

Dibenzta.ilpyrene 

1,2-Dibromo-3-chloropropane... 

Dibutyl phthalate „ 

Di-n-butyl phthalate.. 

Dicamba 

Dichlobenil 

Dichlone 

S-(2,3-Dichloroallyl) diisopropylthiocarbamate 

3,5-Dichloro-N-(1,1-dimethyl-2-propynyl)benzamide.. 

143500 

2303164 

302012 

95807 

25376458 

496720 

823405 

5333415 

53703 

53703 

53703 

189559 

189559 

96128 

84742 

1918009 

1194656 

117806 

2303164 

23950585 

Kepone... 

S-(2,3-Dichloroallyl) diisopropylthiocarbamate.. 

Hydrazine 

Toluenediamine 

1,2:5,6-Dibenzanthracene.. 

Dibenzo[a.h]anthracene -

Dibenz(a,h]anthracene 

Dibenzo[a,h)anthracene 

Dibenzta,h]anthracene 

1,2:5,6-Dibenzanthracene 

Dibenz[a,i]pyrene 

1,2:7,8-Dibenzopyrene 

Propane, 1,2-dibromo-3-chloro-.. 

1,2-Benzenedicarboxylic acid.dibutyl ester.. 

Di-n-butyl phthalate 

n-Butyl phthalate 

1,2-Benzenedicart*oxylic acid.dibutyl ester.. 

n-Butyl phthalate 

Dibutyl phthalate 

Diallate ..... 

Pronamide .V. 

100 

100 

1* 

r 

1 

1 ' 

r 

r 

too 

1000 

1000 

1 

r 

r 

1.2.4 

2 

2 

1.2,4 

1,2,4 

2 

1,4 

4 

4 

4 

1 

2,4 

2,4 

4 

4 

4 

1.2,4 

U240 

U059 

U060 

U060 

U061 

U142 

U062 

U133 

U221 

U063 

U064 

U064 

U066 

U069 

U062 

U192 

100 (45.4) 

100 (45.4) 

100 (45.4) 

10 (0.454) 

10 (0.454) 

10 (0.454) 

10 (0.454) 

10 (0.454) 

10 (0.454) 

10 (0.454) 

10 (0.454) 

10 (0.454) 

10 (0.454) 

10 (0.454) 

1 (0.454) 

10 (0.454) 

10 (0.454) 

10 (0.454) 

10 (0.454) 

10(0.454) 

10 (0.454) 

10 (4.54) 

10 (4.54) 

1000 (454) 

100 (45.4) 

1 (0.454) 

10 (0.454) 

5000 (2270) 
13484 Federal Register / Vol. 50, No. 65 / Thursday, April 4, 1985 / Rules and Regulations 

P.31 

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

Hazardous Substance 

DICHLOROBENZIDINE ., 

1,1 -Dichloropropane 

1,3-Dichloropropane 

i,2:3.4-Dtepoxybutane „ „ 

CASRN 

25321226 

. 95501 

541731 

106467 

541731 

95501 

106467 

91941 

75274 

764410 

75718 

72548 

50293 

75343 

107062 

75354 

156605 

111444 

120832 

87650 

94757 

26636197 

78999 

142289 

78875 

8003198 

26952238 

78886 

542756 

75990 

62737 

60571 

1464535 

109897 

692422 

Regulatory Synonyms 

Benzene, 1,2-dichloroo-Dichlorobenzene 

m-Dichlorobonzene 

p-Dichlorobenzene 

1,3-Dichlorobenzene 

1,2-Dichlorobenzene 

Benzene, 1,4-dichloro- „ „ 

1,4-Dichlorobenzene 

DDD T: ~ 

4,4' DDD 

TDE 

DDT 

4,4'DDT 

Ethylidene dichloride 

Ethylene dichloride 

Ethene, 1,1-dichloro- _ _ 

Vinylidene chloride 

Ethane, 1,1'-oxybis(2-chloro2 4-0 Acid 

2,4-D, salts and esters 

1,2,3,4,10,10-Hexachtoro-6,7-epoxy- t ,4,4a,5,6,7,8,8aoctahydro-endo,exo- 1,4:5.8- dtmethanonaphthalene. 

RQ 

100 

100 

r 

100 

r 

100 

100 

r 

r 

r • 

V 

r 

1 

i 

t* 

5000 

5000 

r 

r 

r 

100 

5000 

5000 

5000 

5000 

5000 

5000 

10 

1 

f 

1000 

1* 

Statutory 

Code) 

1 

1,2,4 

2.4 

1,2,4 

2,4 

1.2.4 

1,2,4 

2 

24 

2 

4 

4 

1,2,4 

1,2.4 

2.4 

1,2,4 

1,2,4 

2,4 

2,4 

2,4 

4 

1,4 

4 

1 

1.2.4 

1 

1 

1.2.4 

1 

1 

1,2,4 

4 

1 

4 

RCRA 

Waste 

Number 

U070 

U071 

U072 

U071 

U070 

U072 

U073 

U074 

U075 

U060 

U061 

U076 

U077 

U078 

U079 

U025 

U081 

U082 

U240 

P036 

U083 

U084 

• 

P037 

U085 

P038 

Category 

B 

B 

B 

B 

B 

B 

B 

X 

D 

X 

D 

X 

X 

C 

D 

D 

C 

X 

B 

B 

B 

X 

c 

c 

D 

D 

D 

D 

A 

X 

X 

C 

X 

Final RO 

Pounds(Kg) 

100 (45.4) 

100 (45.4) 

100 (45.4) 

100 (45.4) 

100 (45.4) 

100 (45.4) 

100 (45.4) 

.. 

Mt (0.454) 

5000 (2270) 

1 (0.454) 

5000 (2270) 

1lt> (0.454) 

Mt (0.454) 

1000 (454) 

5000* (2270) 

5000# (2270) 

1000 (454) 

1# (0.454) 

100 (45.4) 

100 (45.4) 

100 (45.4) 

Mt (0.454) 

1000 (454) 

1000 (454) 

50O0## (2270) 

5000* # (2270) 

5000## (2270) 

5000 (2270) 

10 (4.54) 

lilt (0.454) 

1# (0.454) 

1000## (454) 

1# (0.454) 
P.32 

Federal Register / Vol. 50, No. 65 / Thursday, April 4, 1985 / Rules and Regulations 13485 

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

Hazardous Substano* CASRN Regulatory Synonyms 

Statutory 

Code) 

RCRA 

Waste 

Number 

Final RO 

Category 

Pounds(Kg) 

1,4-Diethylene dioxide 

N.N'-Oiethylhydrazine 

0,0-Diethyl S-C2-(ethytthio)ethyt]phosphorodithioate.. 

O.O-Oiethyi S-methyl dithiophosphato 

Diethyl-p-nitrophenyl phosphate 

Diethyl phthalate 

O.O-Diethyl O-pyrazinyl phosphorothioate 

Oiethylstilbestrol 

1,2-Dihydro-3,6-pyhdazinedione 

Dihydrosafrole 

Diisopropyl fluorophosphate 

Dimethoato „ 

3,3'-DJmothoxybenzidine 

Dimethylamine 

Dimethytaminoazobenzene 

7,12-Dimethytbenz[a)anthracene 

3,3'-Dimethytbenzidlne „ 

alpha^)pha-DimethylbenzyIhydropero)*ide... 

3.3-Dimethyt-1-(methylthio)-2-butanone. O-

[(methytamino)carbonyl3 oxime. 

Dlmethytcarbamoyl chloride 

1,1-Dimethylhydrazine „ 

1.2-Dtmethythydrazine _ _ _ 

O.O-Dimethyt O-p-nitrophenyl phosphorothioate... 

Dimethytnitrosamine _ 

alpha,atpha-Dimethytphenethytamina_ 

2,4-Dimethytprienol _ 

Dimethyl phthalate 

Dimethyl sulfate 

Dinitrobenzene (mixed) _ 

4,6*D)nitro-o-cresol and salts.... 

4.6-Dinitro-o-cyclohexytphenol.. 

Dinitrophenol 

2.5-

2.6-

2.4-Dinitrophenol... 

Dinitrotoluene ..„ _ „.. 

3,4-Dinitrototuene 

2,4-Dinitrotoiuene 

Dinoseb 

Di-n-octyt phthalate 

1,4-Dioxane _ 

D1PHENYLHYDRAZINE.. 

1,2-Dipbeny.hydrazine.. 

123911 

1615801 

298044 

3288582 

311455 

84662 

297972 

56531 

123331 

94586 

55914 

60515 

119904 

124403 

60117 

57976 

119937 

80159 

39196184 

79447 

57147 

540738 

298000 

62759 

122098 

105679 

131113 

77781 

25154545 

99650 

528290 

100254 

534521 

131895 

25550587 

329715 

573568 

51285 

25321146 

610399 

121142 

86857 

117840 

123911 

1.4-Oioxane .-. 

Hydrazine, 1,2-diethyt* 

Disultoton 

Phosphorodithioic acid, O.O-diethyl S-methylester 

Phosphoric acid.diethyl p-nitrophenyl ester 

1,2-Benzenedicarboxylic acid.diethyl ester 

Phosphorothioic acid, O.O-diethyl O-pyrazinyl ester... 

4,4'-Stilbenediol, atpha,alpha'-diethylMaleic hydrazide 

Benzene, 1.2-methyienedioxy-4-propyl- -•• 

Phosphorofluoridic add,bis(1-methylethyt) ester 

Phosphorodithioic acld.O.O-dimethyt S-t2(methylamino)-

2-oxoethyl] ester. 

(1,1'-Biphenyl)-4,4'diamine,3,3'dlmethoxyMethanamine, N-methyl- „ 

Benzenamine, N,N-dimethyl-4-phenytazo1,2-Benzanthracene, 7,12-dimethyl-.„ 

(1,1'Biphenyt)-4,4'-diamine,3.3'-dimethyi- -

Hydroperoxide, 1-methyl-1-phenyiethylTbiolanox 

Carbamoyl chloride, dimethyl- „ 

Hydrazine, 1,1-dimethyl- -

Hydrazine, 1,2-dimethytMethyl parathion _ 

N-Nitrosodifnethylamlne_ 

Ethanamine, 1,1-dimethy)-2-pheny1-

Phenol, 2,4-dimethyl1,2-Benzenedicarboxyiic acid.dimethyl ester.. 

Sulfuric acid, dimethyl ester 

Phenol, 2,4-din.tro-8-methyl-, and salts.. 

Phenol, 2-cyclohexyt-4,6-dinitroPhenol, 2,4-dinitro-.. 

Benzene, 1-methyl-2,4-dinitrcPhenol, 2.4-dinitro-6-(1-methytpropyl)-.... 

1,2-Benzenedicarboxylic acid,di-n-octyl . 

3

1,4-Diethylene dioxide..-

Hydrazine, 1,2-diphenyt-.. 

r 

r 

f 

1* 

r 

i* 

r 

i'. 

r 

1000 

r 

r 

v 

v 

r 

r 

r 

r 

100 

i* 

r 

i* 

v 

i* 

1000 

i* 

1000 

1000 

1000 

1000 

r 

r 

r 

i* 

i* 

4 

4 

1.4 

4 

4' 

2,4 

4 

4 

4 

4 

1.4 

4 

4 

4 

4 

4 

4 

4 

4 

1.4 

2.4 

4 

2.4 

2,4 

4 

1 

1.2.4 

1.2 

1.2.4 

4 

2,4 

4 

2 

2.4 

U108 

U086 

P039 

U087 

P041 

U088 

P040 

. U089 

U148 

U090 

P043 

P044 

U091 

U092 

U093 

U094 

U095 

U098 

P045 

U097 

U098 

U099 

P071 

P082 

P046 

U101 

U102 

U103 

P047 

P034 

P04B 

U105 

P020 

U107 

U108 

X 

X 

X 

D 

B 

C 

B 

X 

D 

X 

B 

A 

X 

C 

X 

X 

X 

A 

B 

X 

X 

X 

B 

X 

D 

B 

D 

X 

B' 

A 

B 

A 

A 

C 

C 

C 

D 

X 

1# (0.454) 

1# (0.454) 

1 (0.454) 

5000 (2270) 

100 (45.4) 

1000 (454) 

100 (45.4) 

Mt (0.454) 

5000 (2270) 

1 tt (0.454) 

100 (45.4) 

10 (4.54) 

1# (0.454) 

1000## (454) 

1# (0.454) 

Mt (0.454) 

Mt (0.454) 

10 (4.54) 

100 (45.4) 

1# (0.454) 

Mt (0.454) 

Mt (0.454) 

100## (45.4) 

ttt (0.454) 

5000 (2270) 

100 (45.4) 

5000 (2270) 

- ttt (0.454) 

100 (45.4) 

10 (4.54) 

100 (45.4) 

10 (4.54) 

10 (4.54) 

100O# (454) 

1000# (454) 

1000 (454) 

5000 (2270) 

ttt (0.454) 

1# (0.454) 
13486 Federal Register / Vol. 50, No. 65 / Thursday, April 4, 1985 / Rules and Regulations 

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

Hazardous Substance 

ENDOSULFAN AND METABOLITES 

Endothall 

ENDRIN AND METABOLITES _ ... 

Ethanal 

Ethane, 1.1.1.2,2,2-hexachloroEthane, 1,t'-oxybisCASRN 

152169 

142847 

621647 

85007 

2764729 

298044 

541537 

3669245 

330541 

27176870 

115297 

959988 

33213659 

1031078 

145733 

72208 

7421934 

106898 

51434 

75070 

55185 

106934 

75343 

107062 

67721 

60297 

111444 

76017 

630206 

79345 

72435 

75058 

62555 

Regulatory Synonyms 

O.O-Diethyl S-[2-(ethylthio)ethyl] phosphorodithioate 

5-Norbomene-2,3-dimethanol,1,4,5,6,7.7-hexachloro, 

cyclic sulfite. 

1,2,3,4.10,10-Hexachloro-6.7-epoxy-1,4,4a,5,6,7,8,8aoctahydro-endo.endo- 1,4:5,8-dimethanonaphthalene. 

Oxirane, 2-(chloromethyl)-

1.2-Benzenediol, 4-[1-hydroxy-2-(methylamino)ethyl]-

Ethylidene dichloride 

Ethylene dichloride 

Dichloroethyl ether 

i 

- • 

Statutoiy 

RO 

1-

1* 

r 

1000 

i 

r 

r 

100 

1000 

1 

r 

r 

f 

r 

r 

1 

r 

r 

1000 

f 

1000 

1* 

f 

1000 

1* 

5000 

r 

i* 

r 

i* 

r 

r 

r 

r 

i 

r 

r 

r 

Code) 

4 

4 

2,4 

1 

1.4 

4 

4 

1 

1 

1,2,4 

2 

2 

2 

2 

4 

1,2.4 

2 

2 

1.4 

4 

1,4 

4 

4 

1.4 

2.4 

1.2,4 

2.4 

2,4 

4 

2,4 

4 

4 

2.4 

2.4 

1,4 

4 

' 4 

4 

RCRA 

.Waste 

Number 

P085 

UI10 

Ul 11 

P039 

P049 

P109 

. P050 

P088 

P051 

U041 

P042 

U001 

P046 

U174 

U067 

U076 

U077 

U131 

U024 

U117 

U025 

U184 

U208 

U209 

U227 

U247 

U114 

U003 

U218 

Catego-

•y 

B 

D 

X 

C 

X 

B 

B 

B 

C 

X 

X 

X 

X 

C 

X 

X 

C 

c 

c 

D 

X 

c 

C 

D 

X 

C 

B 

X 

X 

X 

X 

X 

X 

D 

D 

X 

Final RO 

Pounds(Kg) 

100 (45.4) 

5000 (2270) 

Mt (0.454) 

1000 (454) 

1 (0.454) 

100 (45.4) 

100 (45.4) 

100 (45.4) 

1000 (454) 

1 (0.454) 

1 (0.454) 

1 (0.454) 

1 (0.454) 

1000 (454) 

1 (0.454) 

1 (0.454) 

1000# (454) 

1000 (454) 

1000 (454) 

5000 (2270) 

ttt (0.454) 

1000# (454) 

1000 (454) 

5000# (2270) 

1# (0.454) 

1000 (454) 

100 (45.4) 

1# (0.454) 

Mttt (0.454) 

Mt (0.454) 

Mt (0.454) 

Mt (0.454) 

1 (0.454) 

5000 (2270) 

5000 (2270) 

Mt (0.454) 
Federal Register / Vol. 50, No. 65 / Thursday, April 4, 1985 / Rules and Regulations 

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

Hazardous Substance 

Ethyl acrylateTM ; 

Ethytenebis(dithiocarbamic acid) „ 

CASRN 

1116547 

98862 

75365 

4549400 

75014 

110758 

75354 

127184 

156605 

563122 

141786 

140885 

100414 

51796 

107120 

510156 

106934 

107062 

75218 

111546 

107153 

60004 

96457 

151564 

60297 

75343 

97632 

62500 

52857 

1185575 

2944674 

55488874 

7705080 

9004664 

7783508 

10421484 

10028225 

10045893 

7758943 

7720767 

7782630 

62748 

Regulatory Synonyms 

Vinylldene chloride 

Benzeneacetic acid, 4-chloro-alpha-(4-chlorophenyl)-

alpha-hydroxy-, ethyl ester. 

Ethane, 1,2-dichloroEthane, 1,1-dichloroPhosphorothioic acid, O.O-dimethyl-O- [p- [(dimethylamino)- sulfonyl]phenyl] ester. 

„ 

RO 

r 

r 

5000 

r 

r 

1* 

5000 

r 

r 

10 

r 

r 

1000 

r 

i* 

i* 

1000 

5000 

r 

r 

1000 

5000 

r 

1* 

1* 

r 

r 

i* 

T 

1000 

'1000 

1000 

1* . 

100 

1000 

1000 

1000 

100 

1000 

r 

Statutory 

Code) 

4 

4 

1.4 

4 

2I3.4 

2,4 

1.2.4 

2,4 

2.4 

1 

4 

4 

1.2 

4 

4 

4 

1.4 

1,2,4 

4 

4 

' 1 

1 

4 

4 

4 

2.4 

4 

4 

4 

4 

RCRA 

Waste 

Number 

U173 

. U004 

U006 

P084 

U043 

U042 

U078 

U210 

U079 

U112 

U113 

U238 

P101 

U038 

U067 

U077 

U115 

U114 

U116 

P054 

U117 

U076 

U118 

U119 

P097 

-

U139 

P058 

Catsgory 

X 

D 

D 

X 

X • 

C 

D 

X 

c 

A 

D 

C 

c 

X 

A 

X 

C 

D 

X 

D 

D 

D 

X 

X 

B 

C 

C 

X 

c 

c 

c 

c 

X 

B 

c 

C 

C 

B 

C 

A 

Final,RO 

Pounds(Kg) • 

1# (0.454) 

5000 (2270) 

5000 (2270) 

Mt (0.454) 

1# (0.454) 

1000 (454) 

5000# (2270) 

Mt (0.454) 

1000 (454) 

\0lttt (4.54) 

5000 (2270) 

1000 (454) 

1OO0 (454) 

Mt (0.454) 

10 (4.54) 

Mt (0.454) 

1000# (454) 

5000# (2270) 

Mt (0.454) 

5000 (2270) 

5000 (2270) 

5000 (2270) 

Mt (0.454I 

1# (0.454) 

100 (45.4) 

1000 (454] . 

1000 (454) 

1# (0 454) 

1000 (454) 

1000 (454) 

1000 (454) 

1000 (4541 

Mttt (0.454) 

100 (45.4) 

1000 (454) 

1000 (454) 

1000 (454-

100 (45.4) 

1000(454) 

10 (4 54) 
13488 Federal Register / Vol. 50, No. 65 / Thursday, April 4, 1985 ./ Rules and Regulations 

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

Hazardous Substance 

D-Glucopyranose, 2-deoxy-2-(3-methyl-3-nitrosoureido)- .... 

HALOETHERS 

HALOMETHANES 

Heptachlor 

HEPTACHLOR AND METABOLITES 

HEXACHLOROCYCLOHEXANE (all isomers) 

1,2,3,4.10.10-Hexachloro-6,7-epoxy-1.4,4a.5.6,7,8.8aoctahydro-endo.endo-1,4:5,B-dimethanonaphthalene. 

1,2,3,4,10.10-Hexachloro-6,7-epoxy-1,4,4a,5.6.7,8,8aoctahydro-endo.exo- 1,4:5.8-d.methanonaphthalene. 

Hexachlorohexartydro-endo.endo-dlmethanonaphthateno.. 

1,2,3,4,10,10-Hexachloro-1,4,4a,5,8.8a-hexahydro1,4,5,8-endo.endo- dimethanonaphthalene. 

1,2.3,4,10-10-Hexachloro-l, 4,4a,5,8,8a-hexahydro1,4:5,8- endo, exo-dimethanonaphthalene. 

CASRN 

206440 

86737 

7782414 

640197 

50000 

64166 

628864 

110178 

110009 

109999 

98011 

108316 

98011 

110009 

18863664 

765344 

70257 

86500 

76448 

1024573 

118741 

87683 

608731 

58899 

77474 

72208 

60571 

67721 

465736 

465736 

309002 

70304 

1888717 

757584 

302012 

1615801 

57147 

Regulatory Synonyms 

Methanol acid.: 

4,7-Mettiano-1 H-lndene,1,4,5,6,7,8,8-heptachloro3a,4,7,7a-tetrahydro-. 

Lindane 

1,2,3,4,10,10-Hexachloro-1,4,4a,5,8,8a-hexahydro1,4,5,8-endo.endo- dimethanonaphthalene. 

Hexachlorohexahydro-endo.endo-dimethanonaphthalene.. 

Statutory 

RQ 

r 

r 

r 

r 

1000 

5000 

i* 

5000 

r 

r 

1000 

5000 

1000 

Code) 

2.4 

2 

4 

4 

1,4 

1,4 

4 

1 

4 

4 

1.4 

1,4 

1,4 

4 

4 

4 

4 

1 

2 

2 

1,2,4 

2 

2 

2,4 

2.4 

2 

1.2,4 

1,2,4 

1,2,4 

1,2,4 

2,4 

4 

4 

^.2.4 -

4 

4 

4 

4 

4 

4 

RCRA 

Waste 

Number 

U120 

P056 

P057 

U122 

U123 

P065 

U124 

U213 

U125 

. U147 

U125 

U124 

U206 

U126" 

U163 

P059 

U127 

U126 

U129 

U130 

P051 

P037 

U131 

P060 

P060 

P004 

U132 

U243 

P062 

U133 

. U086 

U098 

Category 

X 

X 

A 

B 

C 

D 

X 

D 

B 

C 

D 

D 

D 

B 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

c 

B 

X 

X 

X 

Final RQ 

Pounds(Kg) 

Mttt (0.454) 

Mtlt (0.454) 

10 (4.54) 

100 (45.4) 

1000# (454) 

5000 (2270) 

Mttt (0.454) 

5000 (2270) 

100 (45.4) 

1000 (454) 

5000 (2270) 

5000 (2270) 

5000 (2270) 

100 (45.4) 

Mt (0.454) 

1 tt (0.454) 

1 tt (0.454) 

1 (0.454) 

,, 

1 #(0.454) 

• • 

Mt (0.454) 

Mt (0.454) 

Mt (0.454) 

Mt (0.454) 

Mt (0.454) 

1 (0.454) 

Mt (0.454) 

Mt (0.454) 

1 (0.454) 

1 (0.454) 

Mt (0.454) 

I tttt (0.454) 

1000 (454) 

100 (45.4) 

Mt (0.454) 

Mt (0.454) 

Mt (0.454) 
P.36 

Federal Register / Vol. 50, No. 65 / Thursday, April 4, 1985 / Rules and Regulations 13489 

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

Hazardous Substance CASRN Regulatory Synonyms 

Statutory 

RQ Code) 

RCRA 

Waste 

Number 

Final RQ 

Category 

Pounds(Kg) 

Hydrazine, 1,2-dimethyl-.... 

Hydrazine, 1,2-diphenyl-.... 

Hydrazine, methylHydrazinecarbothioamide.. 

Hydrochloric acid 

Hydrocyanic acid 

Hydrofluoric acid 

Hydrogen cyanide 

Hydrogen fluoride 

Hydrogen phosphide 

Hydrogen sulfide 

Hydroperoxide, 1 -methyt-1 -phenytethyl-. 

Hydrosulfuric acid 

Hydroxydimethylarsine oxide 

2-lmidazolidinethione 

lndeno(1,2,3-cd)pyrene 

Iron dextran 

Isobutyl alcohol : 

Isocyanic acid, methyl ester 

Isophorone « 

Isoprene 

Isopropanolamine dodecylbenzenesulfonate.. 

Isosafrole ; 

3(2HHsoxazolone, 5-(aminomethyl)-

Kelthane _ _ 

Kepone 

Laslocarpine 

Lead t t . 

Lead acetate 

LEAD AND COMPOUNDS.. 

Lead arsenate 

Lead chloride 

Lead fluoborate... 

Lead fluoride 

Lead iodide 

Lead nitrate 

Lead phosphate.. 

Lead stearate 

540738 

122667 

60344 

79196 

7847010 

74908 

7664393 

74908 

7664393 

7803512 

7783064 

80159 

7783064 

75605 

96457 

193395 

9004664 

78831 

624839 

78591 

78795 

42504461 

120581 

2763964 

115322 

143500 

303344 

7439921 

301042 

1,2*Dimethythydrazine.. 

1,2-Diphenylhydrazine.. 

Methyl hydrazine 

Thiosemicarbazide 

Hydrogen cyanide.. 

Hydrogen fluoride... 

Hydrocyanic acid.... 

Hydrofluoric acid.... 

Phosphine 

Hydrosulfuric acid 

Sulfur hydride 

alpha,alpha-Dimethylbenzylhydroperoxide.. 

Hydrogen sulfide.. 

Sulfur hydride 

Cacodylic acid 

Ethylenethiourea 

1,10-(1,2-Phenylene)pyrene... 

Ferric dextran 

1-Propanol, 2-methylMethyl isocyanate...: 

Benzene, 1,2-methytenedloxy-4-propenyl-... 

5-(Aminomethyt)-3-isoxazolol 

Decachlorooctahydro-1,3,4-metheno-2H-cyclobuta[c,d3-

pentalen-2-one. 

Acetic acid, lead salt.. 

Lead subacetate.. 

7784409 

7645252 

10102484 

7758954 

13814965 

7783462 

10101630 

10099748 

7446277 

7428480 

1072351 

56189094 

52652592 

1335326 

Phosphoric acid, lead salt.. 

1* 

1* 

r 

r 

5000 

10 

5000 

10 

5000 

1* 

100 

1* 

100 

i* 

r 

i* 

r 

r 

r 

r 

1000 

1000 

r 

i* 

5000 

1 

1* 

1* 

5000 

V 

5000 

5000 

5000 

1000 

5000 

5000 

1* 

5000 

4 

2,4 

4 

4 

1 

1.4 

1,4 

1.4 

1,4 

4 

1,4 

4 

1,4 

4 

4 

2.4 

4 

4 

4 

2 

1 

1 

4 

4 

1 

1,4 

4 

2 

1.4 

2 

1 

1 

1 

1 

1 

1 

4 

1 

U099 

U109 

P068 

P116 

P063 

U134 

P063 

U134 

P096 

U135 

U096 

U135 

U136 

U116 

U137 

U139 

U140 

P064 

U141 

P007 

U143 

X 

X 

A 

B • 

D 

A 

B 

A 

B 

B 

B 

A 

B 

X 

X 

X 

X 

D 

X 

D 

C 

C 

X 

C 

A 

X 

X 

X 

D 

1# (0.454) 

Mt (0.454) 

10 (4.54) 

100 (45.4) 

5000 (2270) 

10 (4.54) 

100 (45.4) 

10 (4.54) 

100 (45.4) 

100 (45.4) 

100## (45.4) 

10 (4.54) 

100## (45.4) 

Mt (0.454) 

Mt (0.454) 

Mt (0.454) 

Mt# (0.454) 

5000 (2270) 

1 ###(0.454) 

5000 (2270) 

1000##V (454) 

1000 (454) 

1# (0.454) 

1000 (454) 

10 (4.54) 

1# (0.454) 

1# (0.454) 

1## (0.454) 

5000# (2270) 

5000# (2270) 

5000## (2270) 

5000## (2270) 

1000## (454) 

5000## (2270) 

5000## (2270) 

1# (0.454) 

5000## (2270) 

Mt (0.454) 
13490 Federal Register / Vol. 50, No. 65 / Thursday, April 4, 1985 / Rules and Regulations 

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

Hazardous Substance 

MERCURY ANO COMPOUNDS 

Mercury fulminate 

Methane, chloroMethane, totranitroMethane, tribromo- _ 

4,7-Methano-1H-indene,1,4,5,6,7.8,8-heptachloro3a,4,7.7a-tetrahydro-. 

CASRN 

15739807 

7446142 

1314870 

592670 

56899 

14307358 

121755 

110t67 

108316 

123331 

109773 

148823 

2032657 

592041 

10045940 

7783359 

592858 

10415755 

7782867 

7439976 

62384 

628864 

126987 

124403 

74639 

74873 

107302 

74953 

75092 

75718 

74884 

542881 

56235 

509146 

75252 

67663 

75694 

62500 

74931 

594423 

76448 

64186 

Regulatory Synonyms 

Hexachlorocyclohexane (gamma isomer) 

Thiomethanol 

RQ 

5000 

5000 

6000 

1 

1000 

10 

5000 

5000 

# 

too 

10 

10 

10 

to 

., 

V 

t 

1000 

r 

«„ 

, 

r 

(.-

5000 

V 

5000 

too 

1" 

1 

5000 

Statutory 

Code I 

1 

1 

1 

1.2,4 

t 

1 

1 

1 4 

4 

4 

2.3.4 

2 

4 

4 

4 

1,4 

2 4 

2.4 

4 

4 

2,4 

4 

1.2,4 

4 

2,4 

1.2.4 

4 

4 

1.4 

4 

1.2.4 

1,4 

RCRA 

Waste 

Number 

U129 

U147 

U148 

U149 

U150 

U151 

P092 

P065 

U152 

U092 

U029 

U045 

U046 

U068 

U080 

U075 

U138 

P016 

U211 

P112 

U225 

U044 

U121 

U119 

U153 

P118 

P059 

U123 

catego-

'y 

D 

D 

D 

X 

C 

B 

D 

D 

D 

C 

X 

A 

X 

A 

A 

A 

A 

X 

X 

X 

C 

C 

C 

X 

X 

C 

c 

D 

X 

X 

D 

A 

B 

D 

D 

X 

B 

B 

X 

D 

Final RQ 

Pounds(Kg) 

5000# # (2270) 

5000# # (2270) 

50O0## (2270) 

1# (0.454) 

1000# (454) 

100 (45.4) 

5000(2270) 

5000 (2270) 

5000 (2270) 

1000 (454) 

1# (0.454) 

10 (4.54) 

1 (0.454) 

10# # (4.54) 

10# # (4.54) 

10# # (4.54) 

10##<4.54) 

1 (0.454) 

1 ##(0.454) 

Mttt (0.454) 

1000 (454) 

1000* 0 (454) 

1000 (454) 

1 # # (0.454) 

1# (0.454) 

1000 (454) 

1000 (454) 

5000 (2270) 

1# (0.454) 

Mt (0.454) 

5000# (2270) 

10 (4.54) 

100 (45.4) 

5000# (2270) 

5000 (2270) 

Mt (0.454) 

100 (45.4) 

100 (45.4) 

1# (0.454) 

5000 (2270) 
Federal Register / Vol. 50, No. 65 / Thursday, April 4, 1985 / Rules and Regulations 13491 

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

Hazardous Substance Regulatory Synonyms 

Statutory 

Code) 

RCRA 

Waste 

Number 

Final RQ 

Category 

Pounds(Kg) 

4,7-Methanoindan, 1,2,4,5,6,7,8,8-octachloro- 3a,4,7,7atetrahydro-. 

Methanol 

Methapyrilene.. 

Methomyl 

Methoxychlor „ _. 

Methyl alcohol „ 

2-Methytaziridine „ 

Methyl bromide 

1-Methylbutadiene — 

Methyl chloride _ 

Methyl chlorocarbonate 

Methyl chloroform „ 

4,4'-Methylenebis(2-chloroaniline) 

2,2'-Methyfenebis(3,4,6-trk.hloropheriol).. 

3-Methytcholanthrene _ ...... 

Methylene bromide » 

Methylene chloride -

Methylene oxide „ 

Methyl ethyl ketone 

Methyl ethyl ketone peroxide 

Methyl hydrazine 

Methyl iodide „ „ 

Methyl isobutyl ketone ... 

Methyl isocyanate 

2-Methyllactonitrile -

Methylmercaptan.. 

Methyl mothacrylato -... 

N-Methyl-N'-nitro-N-nitrosoguanldine.. 

Methyl parathion _ 

4-Methyl-2-pentanone 

Methytthiouracil 

Mevinphos „ 

Mexacarbate 

Mitomycin C 

Monoethylamine 

Monomethylamine... 

Naled.. 

5,12-Naphthacenedione, (8S-tis)-8-acetyt-10-[3-amino2,3,6-trideoxy-alpha-L- lyxo-hexopyranosyOoxy]-

7,8,9.10-tetrahydro- 6,8,11-trihydroxy- 1-methoxy-. 

Naphthalene 

57749 

67561 

91805 

16752775 

72435 

67561 

75558 

74839 

504609 

74873 

79221 

71556 

101144 

70304 

56495 

74953 

75092 

50000 

78933 

1338234 

60344 

74884 

108101 

624839 

75865 

74931 

80626 

70257 

298000 

108101 

56042 

7786347 

315184 

50077 

75047 

74895 

300765 

20830813 

Chlordane , 

Chlordane, technical 

Methyl alcohol 

Pyridine, 2-[(2-(dimethylamino)ethyt)*2-thenylamlno]-. 

Acetlmidic acid, N-[(methylcarbarnoyl)oxyJthio-, methyl 

ester. 

Ethane, 1,1,1 -trichloro-2,2-bis(p-methoxyphenyl)-

Methanol — 

1,2-Propylenimine ..... 

Methane, bromo1,3-Pentadiene - — -... 

Methane, chloro- - -

Carbonochloridic acid, methyl ester 

1,1,1-Trichloroethane 

Benzenamine, 4,4'*methylenebis(2-chloroHexachlorophene „ 

BenzEjjaceanthrylene, 1,2-dihydro-3-methyl-.. 

Methane, dibromoMethane, dichloroFormaldehyde _ 

2-Butanone 

2-Butanone peroxide 

Hydrazine, methyl- .... 

Methane, iodo4-Methyl-2-pentanone _ ... 

Isocyanic acid, methyl ester... .... 

Acetone cyanohydrin „ 

Propanenitrile, 2-hydroxy-2-methytMethanetttiol... 

Thiomethanol 

2-Propenoic acid, 2-methyK methyl ester— 

Guanidine, N-nitroso-N-methyl-N'-nitro0,0-Dimethyl O-p-nitrophenyl phosphorothioate 

Methyl isobutyl ketone 

4(1 H)-Pyrimidinone, 2,3-dihydro-6-methyl-2-th.oxo-.. 

Azirino(2',3':3,4)pyrrolo(1,2-a)indole-4,7-dione,6-amino*8-

[((aminocarbonyl)oxy)methyl]- 1,1a,2,8,8a,8tJ- hexahydro-8a-methoxy- 5*methyl-. 

Daunomycin.. 

r 

r 

r 

r 

r 

f 

r 

r 

r 

r 

r 

r 

r 

r 

1000 

r 

r 

r 

r 

i* 

r 

10 

100 

5000 

f 

100 

r 

f 

i 

1000 

r 

1000 

1000 

to 

r 

4 

2,4 

4 

2,4 

4 

2,4 

4 

4 

4 

4 

2,4 

1,4 

4 

4 

4 

4 

4 

4 

1,4 

1,4 

U036 

U154 

U155 

P066 

U247 

U154 

P067. 

U029 

U186 

U045 

U156 

U226 

U158 

U132 

U157 

U068 

U080 

U122 

U159 

U160 

P068 

U138 

U161 

P064 

P069 

U153 

U162 

U163 

P071 

U161 

U164 

U059 

D 

D 

B 

X 

D 

X 

C 

B 

X 

C 

C 

X 

-X 

X 

C 

C 

C 

D 

A 

A 

X 

D 

X 

A 

1# (0.454) 

5000 (22701 

5000 (2270) 

100 ;45.4) 

1 (0.454) 

5000 (2270) 

1# (0.454) 

1000 (454) 

100 (45.4) 

1## (0.454) 

1000 (454) 

1008 (454) 

1# (0.454) 

Mttt (0.454) 

1# (0.454) 

1000 (454) 

1000 (454) 

1000# (454) 

5000 (2270) 

10 (4.54) 

10 (4.54) 

1# (0.454) 

5000 (2270) 

1 ###(0.454) 

10 (4.54) 

100 (45.4) 

1000 (454) 

1# (0.454) 

100## (45.4) 

5000 (2270) 

1# (0.454) 

10 (4.54) 

1000(454)' 

1# (0.454) 

1000## (454) 

100 (45.4) 

10 (4.54) 

1# (0.454) 

100 (45.4) 
13492 Federal Register / Vol. 50, No. 65 / Thursday, April 4, 1985 / Rules and Regulations 

P.39 

TABLE 302.4 - UST OF HAZARDOUS SUBSTANCES AND REPORTABLE QUANTITIES—Continued 

Hazardous Substance CASRN Regulatory Synonyms 

Statutory 

RQ Code) 

RCRA 

Waste 

Number 

Final RQ 

Category 

Pounds(Kg) 

Naphthalene, 2-chloro-.. 

1,4-Naphthalenedione.. 

2,7-Naphthalenedisulfonic acid.3,3'-t(3,3'-dimethyl- (1,1'-

biphenyl)-4,4'-diyl)- bis(azo)]bis(5-amino- 4-hydroxy)-

tetrasodium salt. 

Naphthenic acid 

1,4-Naphthoquinone... 

1-Naphthylamine 

2-Naphthylamine 

alpha-Naphthylamine.. 

beta-Naphthytamine.... 

2-Naphthylamine, N,N-bis(2-chloroethyl)-. 

alpha-Naphthylthiourea 

Nickel tt 

NICKEL AND COMPOUNDS 

Nickel ammonium sulfate 

Nickel carbonyl 

Nickel chloride 

Nickel cyanide 

Nickel(li) cyanide 

Nickel hydroxide 

Nickel nitrate 

Nickel sulfate 

Nickel tetracarbonyl.. 

Nicotine and salts 

Nitric add 

Nitric oxide 

p-Nitroaniline 

Nitrobenzene 

Nitrogen dioxide.. 

Nitrogen(ll) oxide... 

Nitrooen(IV) oxide.. 

Nitroglycerine 

Nitrophenol (mixed).. 

moPp-Nitrophenol 

2-Nitrophenol 

4-Nitrophenol 

NITROPHENOLS.. 

2-Nitropropane 

NITROSAMINES... 

91587 

130154 

72571 

1338245 

130154 

134327 

91598 

134327 

91598 

494031 

; 86884 

7440020 

beta-Chloronaphthalene... 

2-Chloronaphthaiene 

1,4-Naphthoquinone.. 

Trypan blue 

1,4-Naphthalenedione 

alpha-Naphthylamine 

beta-Naphthylamine 

1-Naphthylamine 

2-Naphthylamine 

Chlomaphazine 

Thiourea, 1-naphthalenyl-. 

15699180 

13463393 

7718549 

37211055 

557197 

557197 

12054487 

14216752 

7786814 

13463393 

54115 

7697372 

10102439 

100016 

98953 

10102440 

10544726 

10102440 

10544726 

55630 

25154556 

554847 

88755 

100027 

100027 

88735 

100027 

Nickel tetracarbonyl... 

Nickel(ll) cyanide.. 

Nickel cyanide 

Nickel carbonyl 

Pyridine, (S)-3-(1-methyl-2-pyrrolidinyl)-, and salts.. 

Nitrogen(ll) oxide 

Benzenamine, 4-nitro-.. 

Benzene, nitroNitrogen(IV) oxide 

Nitric oxide 

Nitrogen dioxide.. 

1,2,3-Propanetriol, trinitrate*. 

2-NKrophenol 

4-Nitrophenot 

Phenol, 4-nitro4-Nitrophenol 

Phenol, 4-nitroo-Nitrophenol.. 

p-Nitrophenol 

Phenol, 4-nitroPropane, 2-nitro-.. 

1' 

1* 

100 

1* 

1* 

1" 

1* 

1* 

1* 

1* 

r 

i* 

5000 

1* 

5000 

1* 

1* 

1000 

5000 

5000 

1* 

r 

1000 

r 

i* 

1000 

1000 

1* 

1000 

1* 

1000 

1000 

•1000 

1000 

1" 

1" 

1* 

2,4 

4 

4 

1 

4 

4 

4 

4 

4 

4 

4 

2 

2 

1 

4 

1 

4 

4 

1 

1 

1 

4 

4 

1 

4 

4 

1,2.4 

1,4 

4 

1,4 

4 

1 

1.2,4 

1.2 

1,2.4 

2 

4 

2 

U047 

U166 

U236 

U166 

U167 

U168 

U167 

U168 

U026 

P072 

P073 

P074 

P074 

P073 

P075 

P076 

P077 

U169 

P078 

P076 

P078 

P081 

U170 

U171 

5000 (2270) 

5000 (2270) 

1# (0.454) 

100 (45.4) 

5000 (2270) 

1# (0.454) 

1# (0.454) 

1# (0.454) 

1# (0.454) 

1# (0.454) 

100 (45.4) 

1# (0.454) 

5000# (2270) 

1# (0.454) 

5000/? (2270) 

1# (0.454) 

1# (0.454) 

1000# (454) 

5000# (2270) 

5000# (2270) 

1# (0.454) 

100 (45.4) 

1000(454) • 

10 (4.54) 

5000 (2270) 

1000 (454) 

10 (4.54) 

10 (4.54) 

10 (4.54) 

10 (4.54) 

100 (45.4) 

100 (45.4) 

100 (45.4) 

100 (45.4) 

1# (0.454) 
P.40 

Federal Register / Vol. 50, No. 65 / Thursday, April 4, 1985 / Rules and Regulations 13493 

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

Hazardous Substance CASRN Regulatory Synonyms 

Statutory 

RQ Code) 

RCRA 

Waste 

Number 

Final RQ 

Category 

Pounds(Kg) 

N-Nitrosodi-n-butylam.ne 

N-Nitrosodiethanolamine 

N-Nitrosodiethytamine 

N-Nitrosodimethylamine .... 

N-Nitrosodiphenylamine 

N-Nitrosodi-n-propytamine 

N-Nitroso-N-ethyturea 

N-Nitroso-N-methylurea 

N-Nitroso-N-methylurethane.. 

N-Nitrosomethytvinylamine .... 

N-Nit/osopiperidine 

N-Nitrosopyrrolidine..^ 

Nitrotoluene 

oP5-Nitro-o- toluidine... 

5-Norbornene-2,3-dimethariol,1,4,5,6,7,7-hexachloro, 

cyclic sulfite. 

Octamethylpyrophosphoramide 

Osmium oxide 

Osmium tetroxide 

7-Oxabicyclo[2.2.1]heptane-2,3-dicarboxylic acid.. 

1,2-Oxathiolane, 2,2-dioxide 

2H-1,3,2-Oxazaphosphorine,2-Cbis(2*chloroethyl)amino] 

tetrahydro-2-oxide. 

Oxirane 

Oxirane, 2-(chloromethyl)-

Paraformaldehyde 

Paraldehyde.! 

Parathion 

Pentachlorobenzene 

Pentachloroethane 

Pentachloronitrobenzene.. 

Pentachlorophenol... 

1,3-Pentadiene 

Phenacetin 

Phenanthrene 

Phenol 

Phenol, 2-chloroPhenol, 4-chloro-3-methyl-... 

Phenol, 2-cyclohexyl-4,6-dinitro-.. 

Phenol, 2,4-dichloroPhenol, 2,6-dichloroPhenol, 2,4-d.methyt924163 

1116547 

55185 

62759 

66306 

621647 

759739 

684935 

615532 

4549400 

100754 

930552 

1321126 

99081 

88722 

99990 

99558 

115297 

152169 

20816120 

20816120 

145733 

1120714 

50180 

75218 

106898 

30525894 

123637 

56382 

608935 

76017 

82688 

87865 

504609 

62442 

85018 

108952 

95578 

59507 

** 131895 

120832 

87650 

105679 

1-Butanamine, N-butyl-N-nitroso-... 

Ethanol, 2,2'*(nitrosoimino)bisEthanamine, N-ethyf-N-nitroso-...-, 

Dimethylnitrosamine 

Di-n-propylnitrosamine 

Carbamide, N-ethyl-N-nitrosoCarbamide, N-methyl-N-nitrosoCarbamic acid, methylnitroso-,ethyl ester.. 

Ethenamine, N-methyl-N-nitrosoPyridine, hexahydro-N-nitrosoPyrrole, tetrahydro-N-nltroso8enzenamine, 2-methyt-5-nitro-.. 

Endosulfan 

Diphosphoramide. octamethyl-.. 

Osmium tetroxide 

Osmium oxide 

Endothall 

1,3-Propane sultone 

Cyclophosphamide 

Ethyleneoxide.. 

1 -Chloro-2,3-epoxypropane.. 

Epichlorohydrin 

1,3,5-Trioxane, 2,4,6-trimethytPhosphorothioic acid.O.O-diethyl O-(p-nitrophenyl) ester. 

Benzene, pentachloro-... 

Ethane, pentachloroBenzene, pentachloronitroPhenol, pentachloro1-Methylbutadiene 

Acetamide, N-(4-ethoxyphenyl)-

Benzene, hydroxy*. 

2-Chlorophenol.. 

o-Chlorophenol 

4-Chloro-m-cresol 

p-Chloro-m-cresol 

4,6-Dinitro-o-cyclohexytphenol.. 

2,4-Dichlorophenol 

2,6-Dichlorophenol 

2,4-Dimethytphenol 

r 

r 

i* 

r 

i* 

r 

r 

i* 

i* 

i* 

i* 

r 

1000 

i* 

i* 

f 

r 

r 

r 

r 

1000 

1000 

4 

4 

4 

2,4 

2 

2.4 

4 

4 

4 

4 

4 

4 

1 

4 

1.2.4 

4 

4 

4 

4 

4 

* 4 

4 

1,4 

1 

4 

1.4 

4 

4 

4 

1.2,4 

4 

4 

2 

1,2,4 

2.4 

2,4 

4 

2,4 

4 

2,4 

U172 

U173 

U174 

P082 

U111 

U176 

U177 

U178 

P084 

U179 

U180 

U181 

P050 

P085 

P087 

P087 

P088 

U193 

U058 

U115 

U041 

U182 

P089 

U183 

U184 

11185 

U242 

U186 

U187 

U188 

U048 

U039 

P034 

U081 

U082 

U101 

X 

X 

X 

X 

B 

X 

X 

X 

X 

X 

X 

X 

C 

X 

X 

B 

C 

c 

c 

X 

X 

X 

c 

c 

c 

X 

X 

X 

X 

A 

B 

X 

X 

c 

B 

1# (0.454) 

1# (0.454) 

1# (0.454) 

1# (0.454) 

100 (45.4) 

1# (0.454) 

1# (0.454) 

1# (0.454) 

1# (0.454) 

1# (0.454) 

1# (0.454) 

Mt (0.454) 

1000 (454) 

1# (0.454) 

1 (0.454) 

100 (45.4) 

1000 (454) 

1000 (454) 

1000 (454) 

1# (0.454) 

1# (0.454) 

1# (0.454) 

1000# (454) 

1000 (454) 

1000 (454) 

1# (0.454) 

1## (0.454) 

Mttt (0.454) 

1# (0.454) 

10# (4.54) 

100 (45.4) 

1# (0.454) 

1## (0.454) 

1000## (454) 

100 (45.4) 

5000 (2270) 

100 (45.4) 

100 (45.4) 

fOO (45.4) 

100 (45.4) 
P.41 

13494 Federal Register / Vol. 50, No. 65 / Thursday, April 4, 1985 / Rules and Regulations 

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

Hazardous Substance CASRN Regulatory Synonyms 

Statutory 

RQ Codet 

RCRA 

Waste 

Number 

Category 

Pounds(Kg) 

Phenol; 2,4-dinitroPhenol, 2,4-dinitro-6-(1-methylpropyl)-.... 

Phenol, 2,4-dinitro-6-methyl-, and salts.. 

Phenol, 4-nitro- „ „ 

Phenol, pentachloroPhenol, 2,3,4,6-tetrachloro- _ 

Phenol. 2,4,5-trichloroPhenol, 2,4,6-trichloroPhenol, 2,4,6-trinitro-, ammonium salt.. 

Phenyl didtloroarsine .'. 

1,1<M1,2-Phenylene)pyrene 

Phenylmercurie acetate _ _ 

N*Ph8ny)thtourea..._ 

Phorate _ 

Phosgeru. _ _ 

Phosphine- _ .. -

Phosphoric acid „ 

Phosphoric acid.diethyl p-nitrophenyl ester 

Phosphoric acid, lead salt ...... 

Phosphorodithioic acid, O.O-diethyl S-methylester 

Phosphorodithioic acid, O.O-diethyt S-(ethylthio). methyl 

Phosphorodithioic acid.O.O-dimethyt S-{2(methytamino)-

2-oxoethyl] ester. 

Phosphorofluoridic acid,bis(1 -methylethyl) ester 

Phosphorothioic acid.O.O-diethyl 0-(p-nitrophenyt) ester. 

Phosphorothioic acid, O.O-diethyl O-pyrazinyl ester 

Phosphorothioic acid. O.O-dimethyl 0-[p-

[(dimGthyfamino)-sulfony1]phenyl} ester. 

Phosphorus..-

Phosphorus oxychloride.... 

Phosphorus pentasulfide.. 

Phosphorus sulfide.. 

Phosphorus trichloride „ 

PHTHALATE ESTERS ., 

Phthalic anhydride 

2-Picoline - _ „ 

Plumbane, tetraethylPOLYCHLORINATED BIPHENYLS (PCBs).. 

POLYNUCLEAR AROMATIC HYDROCARBONS. 

51285 

88857 

534521 

100027 

87865 

58902 

95954 

88082 

131748 

696286 

193395 

62384 

103855 

29S022 

75445 

7803512 

7664382 

311455 

7446277 

3288582 

298022 

60515 

55914 

56382 

297972 

52857 

7723140 

10025873 

1314803 

1314803 

7719122 

2,4-Dinitrophenol 

Dinoseb 

4,6-Dinitro-o-cresol and salts.. 

p*Nitrophenol.... 

4-Nitrophenol 

Pentachlorophenol 

2,3,4,6-Tetrachlorophenol 

2,4,5-Trichlorophenol 

'2,4,6-Trich.orophenol 

Ammonium picrate _ 

Dichlorophenylarsine: 

Indenod ,2,3-cd)pyrene 

Mercury, (acetato-OJphenyl-/ 

Thiourea, phenylPhosphorodithioic acid, O.O-diethyl S-(ethylthio), methyl 

oster. 

Carbonyl chloride 

Hydrogen phosphide.. 

Diethyl-p-nitrophenyl phosphate 

Lead phosphate.! 

O.O-Dlethyl S-methyl dithiophosphate....... 

Phorate _. 

Dimethoate.. 

Diisopropyl fluorophosphate 

Parathion... 

O.O-Diethyl O-pyrazinyl phosphorothioate.. 

Famphur _ 

85449 

109068 

78002 

1336363 

12674112 

11104282 

11141165 

53469219 

12672296 

11097691 

11096825 

Phosptiorus sulfide 

Sulfur phosphide 

Phosphorus pentasulfide.. 

Sulfur phosphide 

1,2-Benzenedicaftx)xy1lc acid anhydride... 

Pyridine.2-methylTetraethyl lead 

Aroclors 

Aroclor 1016 

Aroclor 1221 

Aroclor 1232 

Aroclor 1242 

Aroclor 1248 

Aroclor 1254 

Aroclor 1260 

1000 

1" 

1* 

1000 

10 

1* 

10 

10 

1* 

1' 

r 

V 

1* 

V 

5000 

1-

5000 

1* 

1* 

1* 

1" 

1* 

r 

1 

1 

5000 

100 

100 

5000 

1* 

r 

V 

100 

10 

1.2,4 

4 

2.4 

1.2.4 

1.2,4 

4 

1,4 

1.2.4 

4 

4 

2,4 

4 

4 

4 

1,4 

4 

1 

4 

4 

4 

4 

4 

1.4 

4 

4 

1 

1 

1.4 

1.4 

1 

2 

4 

4 

1.4 

1.2 

P048 

P020 

P047 

U170 

U242 

U212 

U230 

U231 

P009 

P038 

U137 

P092 

P093 

P094 

P095 

P096 

P041 

U145 

0087 

P094 

P044 

P043 

P089 

P040 

P097 

U189 

U190 

U191 

P110 

A 

C 

A 

B 

A 

A 

A 

A 

A 

X . 

X 

X 

B 

X 

A 

B 

D 

B 

X 

O 

X 

10 (4.54) 

1000 (454) 

10 (434) 

100 (45.4) 

10# (4.54) 

10 (4.54) 

10/? (4.54) 

10# <4.54) 

10 (4.54) 

1# (0.454) 

Mt (0.454) 

1## (0.454) 

100 (45.4) 

1## (0.454) 

10 (4.54) 

100 (45.4) 

5000 (2270) 

100 (45.4) 

1# (0.454) 

5000(2270) 

1fil# (0.454) 

10 (4.54) 

100 (45.4) 

1# (0.454) 

100 (45.4) 

1000 (454) 

1 (0.454) 

1000 (454) 

100 (45.4) 

100 (45.4) 

1000 (454) 

5000 (2270) 

5000 (2270) 

100## (45.4) 

10# (4.54) 
P.42 

Federal Register / Vol. 50, No. 65 / Thursday, April 4, 1985 / Rules and Regulations 13495 

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

Hazardous Substance Regulatory Synonyms 

Statutory 

RO Code) 

RCRA 

Waste 

Number 

Final RO 

Category 

Pounds(Kg) 

Potassium arsenate 

Potassium arsenite 

Potassium bichromate 

Potassium chromate 

Potassium cyanide 

Potassium hydroxide 

Potassium permanganate.. 

Potassium silver cyanide... 

Pronamide 

I-Propanal. 2,3-epoxyPropanal, 2-methyl-2-(methylthio)-,0-t(methylamino) 

carbonyt)oxime. 

1-Propanamine 

1-Propanamine, N-propylPropane, 1,2-dibromo-3-chloroPropane, 2-nitroPropane, 2.2'-oxybis(2-chloro1,3-Propane suttone 

Propanedinitrile 

Propanenitrile 

Propanenitrile, 3-chloroPropanenitrile, 2-hydroxy-2-methyl-.. 

1,2,3-Propanetriol, trinitrate1-Propanol, 2,3-dibromo-, phosphate (3:1)... 

1-Propanol, 2-methyl2-Propanone 

2-Propanone. 1-bromoPropargite 

Propargyl alcohol 

2-Propenal • 

2-Propenamide 

Propene, 1,3-dichloro1-Propena, 1,1,2,3,3,3-hexachloro2-Propenenitrile 

2-Propenenitrile, 2-methyl2-Propenoic acid 

2-Propenoic acid, ethyl ester 

2-Propenoic acid, 2-methyl-, ethyf ester 

2-Propenoic acid, 2-methyl-, methyl ester... 

2-Propen-1-ol 

Propionic acid 

Propionic acid, 2-(2,4.5-*richlorophenoxy)-.. 

Propionic anhydride 

7784410 

10124502 

7778509 

7789006 

151508 

1310583 

7722647 

506616 

23950585 

765344 

116063 

107108 

142847 

96128 

79469 

108601 

1120714 

109773 

107120 

542767 

75865 

55630 

126727 

78831 

67641 

598312 

2312358 

107197 

107028 

79061 

542756 

1888717 

107131 

126987 

79107 

140885 

97632 

80626 

107186 

79094 

93721 

123626 

1000 

1000 

1000 

1000 

10 

1000 

100 

3,5*Dichloro-N-(1,1 -dimethyt*2-propynyl)benzamide.. 

Glycidylaldehyde 

Aldicarb 

n-Propylamine 

Dipropylamine 

1,2-Dibromo-3-chloropropane... 

2-Nitropropane 

Bis(2-chloroisopropyl) ether. 

1,2-Oxathiolane, 2,2-dioxide.... 

Malononitrite , 

Ethyl cyanide 

3-Chloropropionitrile 

Acetone cyanohydrin... 

2-Methyltactonltrile 

Nitroglycerine 

Tris(2,3-dlbromopropyl) phosphate.. 

Isobutyl alcohol 

Acetone 

Bromoacetone 

2-Propyn-1-ol 

Acrolein 

Acrylamide 

1,3-Dichloropropene.. 

Hexachloropropene... 

Acrylonitrile 

Methacrylonitrile 

Acrylic acid 

Ethyl acrylate 

Ethyl methacrytate 

Methyl methacrylate.. 

Ally! alcohol 

Silvex 

2,4,5-TP add 

5000 

5000 

100 

5000 

100 

5000 

1 

1 

1 

1 

1,4 

1 

1 

4 

4 

4 

4 

4 

4 

2,4 

4 

4 

4 

4 

1,4 

4 

4 

4 

4 

4 

1 

4 

1.2,4 

4 

1.2.4 

4 

1.2,4 

4 

4 

4 

4 

1,4 

1,4 

1 

1,4 

P099 

U192 

U126 

P070 

U194 

U110 

U066 

U171 

U027 

U193 

U149 

P101 

P027 

P069 

P081 

U235 

U140 

U002 

P017 

P102 

P003 

U007 

U084 

U243 

U009 

U152 

U008 

U113 

U118 

U162 

P005 

C 

C 

C 

C 

A 

C 

B 

X 

D 

X 

X 

0 

D 

X 

X 

C 

X 

C 

A 

C 

A 

A ' 

X 

D 

0 

C 

A 

C 

X 

D 

D 

C 

B 

C 

D 

C 

C 

C 

1000# (454) 

1000# (454) 

1000# (454) 

1000# (454) 

10 (4.54) 

1000 (454) 

100 (45.4) 

1 (0.454) 

5000 (2270) 

1# (0.454) 

1 (0.454) 

5000 (2270) 

5000 (2270) 

1# (0.454) 

1# (0.454) 

1000 (454) 

1# (0.454) 

1000 (4.54) 

10 (4.54) 

1000 (454) 

10 (4.54) 

10 (4.54) 

1# (0.454) 

5000 (2270) 

5000 (2270) 

1000 (454) 

10 (4.54) 

1000 (454) 

1 (0.454) 

5000 (2270) 

5000## (2270) 

1000 (454) 

100# (45.4) 

1000 (454) 

5000 (2270) 

1000 (454) 

1000 (454) 

1000 (454) 

100 (45.4) 

5000 (2270) 

100 (45.4) 

5000 (2270) 
P.43 

13496 Federal Register / Vol. 50, No. 65 / Thursday, April 4, 1985 / Rules and Regulations 

TABLE 302.4 - UST OF HAZARDOUS SUBSTANCES AND REPORTABLE QUANTmES—Continued 

Hazardous Substance 

Propylene dichloride _ 

Pyridine, 2-[(2-(dimethylamlno)ethyl)-2-thenylamino}-

Pyridine.2-methyl- _ „ 

Pyrophosphoric acid, tetraethyl ester 

Pyrrole. tetrahydro-N-nitroso- _ 

RADIONUCLIDES _ 

Safrole , _ _ _ 

SELENIUM AND COMPOUNDS... _ _.. 

Selenium dloxkle „ _ „ 

Selenium oxide r-. _ 

Silver tt. _ - _ ...._ . . - . 

SILVER AND COMPOUNDS...- - -

Sodium azide _ _ __ _ 

-Sodium bichromate _ „ _ 

CASRN 

107108 

78875 

75569 

75558 

107197 

129000 

121299 

121211 

8003347 

504245 

110861 

91805 

100754' 

54115 

56042 

107493 

930SS2 

50555 

108463 

81072 

94597 

7783008 

7782492 

7446084 

7446084 

630104 

115028 

7781838 

93721 

7440235 

7631892 

7784465 

26628228 

10588019 

1333831 

7831905 

Regulatory Synonyms 

V 

Propargyl alcohol -

Methapyrilene _ -

N-Nitrosopyrroadine 

Yohimban-16-carl50xytlo ackt11,17-<limethoxy-18-

[(3,4,5- trimethoxybenzoyf)oxy]-, methyl ester. 

1,3-Benzenediol. 

"* 

Selenium oxide ..„ ._ 

Selenium dioxide 

Propionic acid, 2-(2.4,5-tricWorophenoxy)-.._ _ 

2,4,5-TP add 

RQ 

1" 

5000. 

5000 

1* 

1* 

1000 

1* 

1* 

1" 

r 

i" 

r 

r 

100 

1* 

1000 

•• 

i* 

1000 

i* 

i* 

i* 

f 

1000 

1000 

1* 

1* 

1* 

1 * 

1 * 

1 

100 

1000 

1000 

1000 

1* 

1000 

5000 

6000 

Statutory 

Code ) 

4 

1.2.4 

1 

4 

4 

2 

1 

4 

4 

4 

4 

4 

4 

4 

1.4 

4 

1 

3 

4 

1,4 

4 

4 

4 

2 

2 

1.4 

1,4 

4 

4 

2 

2 

4 

1 

1.4 

1 

1 

1 

4 

1 

1 

' 

RCRA 

Waste 

Number 

U194 

U083 

P067 

P102 

POOS 

U196 

U155 

U179 

U191 

P075 

U164 

Pil l 

U180 

U200 

U201 

U202 

U203 

U204 

U204 

U205 

U204 

• P103 

U015 

P104 

U233 

P105 

r~ " 

Category 

D 

C 

B 

X 

C 

X 

X 

c 

X 

0 

X 

D 

B 

X 

B 

X 

• D 

X 

D 

D 

X 

X 

X 

X 

C 

X 

c 

X 

X 

c 

X 

X 

B 

A 

C 

C 

C 

C 

0 

• " 

Pinal RQ 

Pounds(Kg) 

5000 (2270) 

. 1000 (454) 

100 (45.4) 

1# (0.454) 

1000(454) 

Mttt (0.454) 

1 (0.454) 

1000 (454) 

Mttt (0.454) 

5000 (2270) 

1# (0.454) 

5000 (2270) 

100 (45.4) 

1# (0.454) 

\00tttt (45.4) 

18 (0.454) 

5000 (2270) 

15 (0.454) 

5000 (2270) 

5000 (2270) 

1# (0.454) 

1# (0.454) 

Mttt (0.454) 

1 # # (0.454) 

1000# # (454) 

1# (0.454) ' 

1000# # <454) 

Mttt (0.454) 

1# (0.454) 

1000 (454) 

•1 (0.454) 

1 (0.454) 

100 (45.4) 

10 (4.54) 

1000# (454) 

1000# (454) 

1000 (454) 

1000/P (454) 

5000# # (2270) 

5000 (2270) 
P.44 

Federal Register / Vol. 50, No. 65 / Thursday, April 4, 1985 / Rules and Regulations 13497 

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

Hazardous Substance CASRN Regulatory Synonyms 

Statutory 

Code) 

RCRA 

Waste 

Number. 

Category 

Pounds(Kg) 

Sodium chromate -

Sodium cyanide 

Sodium dodecylbonzene sulfonate... 

Sodium fluoride 

Sodium hydrosuifide „. 

Sodium hydroxide „ 

Sodium hypochlorite 

Sodium mothylate 

Sodium nitrite 

Sodium phosphate, dibasic.. 

Sodium phosphate, tribasic.. 

Sodium selenite.. 

4,4'-Stilbenediol. alpha,alpha'-diothyl-. 

Streptozotodn „ 

Strontium chromate „ 

Strontium sulfide „ „ ..... 

Strychnidin-10-one, and salts 

Strychnktin-10-one, 2,3-dimetnoxyStrychnine and salts 

Styrene 

Sulfur hydride 

Sulfur monochloride.. 

Sulfur phosphide 

Sulfur selenide.. 

Sulfuric acid 

Sulfuric acid, dimethyl ester.. 

Sulfuric add, thallium(l) salt.. 

2,4,5-T 

2,4,5-T acid 

2,4,5-T amines.. 

2,4.5-T esters.. 

2,4,5-T salts.. 

7775113 

143339 

25155300 

7681494 

16721805 

1310732 

7681529 

10022705 

124414 

7632000 

7558794 

10039324 

10140655 

7601549 

7785844 

10101890 

10361894 

7758294 

10124568 

10102188 

7782823 

56531 

18883664 

7789062 

1314961 

57249 

357573 

57249 

100425 

7783064 

12771083 

1314803 

7488564 

7664939 

8014957 

77781 

7446186 

10031591 

93765 

2008460 

6369966 

6369977 

1319728 

3813147 

93798 

2545597 

61792072 

1928478 

25168154 

13560991 

Diethylstilbestrol . 

D-Glucopyranose, 2-deoxy-2-(3-methyt-3*nitrosoureido)-. 

Strychnine and salts 

Brudne 

Strychnidin-10-one, and salts... 

Hydrogen sulfide.... 

Hydrosulfuric acid 

Phosphorus pentasulfide.. 

Phosphorus sulfide 

Selenium disulfide.. 

Dimethyl sulfate 

Thalliumfl) sulfate.. 

2,4,5-T acid 

2,4,5-Trichlorophenoxyacetic add 

2,4.5-T.... 

2,4,5-Trichlorophenoxyacetic acid 

1000 

10 

1000 

5000 

5000 

1000 

100 

1000 

100 

5000 

1000 

1* 

r 

1000 

r 

10 

r 

10 

1000 

too 

1000 

100 

r 

1000 

r 

1000 

too 

100 

4 

4 

1 

4 

1,4 

4 

1.4 

1 

1.4 

1 

1,4 

4 

1 

4 

1.4 

1,4 

U089 

U206 

P107 

P108 

P018 

P108 

U189 

U205 

U103 

P115 

U232 

1000# (454) 

10 (4.54) 

1000 (454) 

1000 (454) 

5000 (2270) 

1000 (454) 

100 (45.4) 

1000 (454) 

100## (45.4) 

5000 (2270) 

5000 (2270) 

I000## (454) 

1# (0.454) 

1# (0.454) 

1000# (454) 

100 (45.4) 

10 (4.54) 

10 (4.54) 

10 (4.54) 

1000 (454) 

100## (45.4) 

1000 (454) 

100 (45.4) 

1# (0.454) 

1000 (454) 

1# (0.454) 

1000## (454) 

1000 (454) 

1000 (454) 

5000 (2270) 

1000 (454) 

1000 (454) 
13498 Federal Register / Vol. 50, No. 65 / Thursday, April 4, 1985 / Rules and Regulation., 

P.45 

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

Hazardous Substance 

TDE , 

Thallic oxide _ 

THALLIUM AND COMPOUNDS ... . 

CASRN 

72548 

95943 

1746016 

630206 

79345 

127184 

58902 

3689245 

78002 

107493 

109999 

509148 

757584 

1314325 

7440280 

563686 

6533739 

7791120 

10102451 

1314325 

12039520 

7446186 

10031591 

62555 

39196184 

541537 

74931 

108985 

79196 

62566 

5344821 

137268 

108883 

95807 

25376458 

496720 

623405 

584849 

91087 

26471625 

8001352 

Regulatory Synonyms 

DDD 

4,4' DDD 

Dichlorodiphenyl dichloroethane 

3,3-Dimethyl-1 -(methylth to)-2-butanone.O- [(methylamino) 

carbonyl] oxime. 

Methanethiol ., 

Methylmercaptan 

Carbamide, thio- ~ 

RQ 

1 

1* 

1* 

1* 

1* 

1' 

1* 

r 

100 

100 

r 

r 

1* 

r 

r 

i* 

i* 

1* 

r 

i* 

r 

i* 

1000 

1* 

1* 

r 

100 

i* 

i* 

i* 

i * • 

1* 

1* 

r 

•1000 

1* 

1* 

1-

1 

Statutory 

Code) 

1.2,4 

4 

2 

4 

2,4 

2,4 

4 

4 

1.4 

1.4 

4 

4 

4 • 

4 

2 

2 

4 

4 

4 

4 

4 

4 

1,4 

4 

4 

4 

1.4 

4 

4 

4 

4 

4 

4 

4 

1.2.4 

4 

4 

4 

1,2,4 

RCRA 

Waste 

Number 

U060 

U207 

U208 

U209 

U210 

U212 

P109 

P110 

P111 

U213 

P112 

P062 

P113 

U214 

U215 

U216 

U217 

P113 

P114 

P115 

U218 

P045 

P049 

U153 

P014 

P118 

U219 

P026 

P072 

P093 

U244 

U220 

U221 

U223 

U222 

P123 

Category 

X 

D 

X 

X 

X 

X 

A 

B 

B 

B 

C 

A 

B 

X 

X 

X 

X 

X 

X 

X 

X 

c 

X 

B 

B 

B 

B 

B 

X 

B 

B 

B 

A 

C 

X 

a 

X 

. X 

Final RQ 

Pounds(Kg) 

1# (0.454) 

5000 (2270) 

1# (0.454) 

1# (0.454) 

1# (0.454) 

1# (0.454) 

10 (4.54) 

100 (45.4) 

100## (45.4) ' 

100## (45.4) 

1000 (454) 

10 (4.54) 

100 (45.4) 

1## (0.454) 

Mttt (0.454) 

Mttt (0.454) 

1## (0.454) 

1## (0.454) 

1## (0.454) 

1## (0.454) 

1## (0.454) 

1000## (454) 

1# (0.454) 

100 (45.4) 

100 (45.4) 

100 (45.4) 

100 (45.4) 

100 (45.4) 

1# (0.454) 

100 (45.4) 

100 (45.4) 

100 (45.4) 

10 (4.54) 

1000 (454) 

1# (0.454) 

100 (45.4) 

1# (0.454) 

Mt (0.454) 
Federal Register / Vol. 50, No. 65 /. Thursday, Apri l 4, 1985 / Rules and Regulations 13499 

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

Hazardous Substance CASRN Regulatory Synonyms 

Statutory 

RQ Code ) 

RCRA 

Waste 

Number 

Final RO 

Category 

Pounds(Kg) 

2,4,5-TP acid.. 

2.4,5-TP acid esters 

1H-1,2,4-Triazol-3-amine... 

Trichlorlon , 

1,2,4-Trichlorobenzene 

1,1,1-Trichloroethane 

1,1,2-Trichloroethane 

Trichloroethene 

Trichloroethylene 

Trichloromethanesulfenyt chloride.. 

Trichloromonofluoromethane 

Trichlorophenol 

2,3,4-Trichlorophenol 

2,3,5-Trichlorophenol 

2,3,6-Trichlorophenol 

2,4,5-Trichlorophenol 

2,4,6-Trichlorophenol 

3,4,5-Trichlorophenol 

2,4,5-Trichlorophenol 

2,4,6-Trichlorophenol 

2,4,5-Trichlorophenoxyacetic acid.. 

Triethanolamine dodecylbenzenesulfonate.. 

Triethylamine 

trimethytamine 

sym-Trinitrobenzene 

1,3,5-Trioxane, 2,4,6-trimethyl-... 

Tris(2,3-dibromopropyt) phosphate 

Trypan blue 

Unlisted Hazardous Wastes 

Characteristic ol Ignitability 

Characteristic of Corrosivity.... 

Characteristic of Reactivity 

Characteristic of EP Toxicity... 

Arsenic 

Barium 

Cadmium 

Chromium 

..Lead 

Mercury 

Selenium 

Silver 

Endrin 

Lindane 

Metnoxychlor 

Toxaphene 

93721 

32534955 

61825 

52686 

120821 

71556 

79005 

79016 

79016 

594423 

75694 

25167822 

15950660 

933788 

933755 

95954 

88062 

609198 

95954 

88062 

93765 

27323417 

121448 

75503 

99354 

,123637 

126727 

72571 

Propionic acid, 2-(2,4,5-trichtorophenoxy)-. 

Silvex 

Amitrole... 

Methyl chloroform 

Ethane, 1,1,2-trichloroTrichloroethylene 

Trichloroethene 

Methanesulfenyt chloride, trichloro*.. 

Methane, trichlorofluoroPhenol, 2,4,5-trichloroPhenol. 2,4,6-trichloroPhenol, 2,4,5-trichloro-.. 

Phenol, 2,4,6-trichloro-.. 

2,4,5-T 

2,4,5-T acid 

Benzene, 1,3,5-trinitro-.. 

Paraldehyde 

1-Propanol, 2,3-dibromo-, phosphate (3:1).. 

2,7-Naphthalenedisulfonic acid,3,3'-[(3,3'-dimethyf- (1,1'-

biphenyl)-4,4'-diyl)- bis(azo)]bis(5-amino-4- hydroxy)-

tetrasodium salt 

100 

100 

1* 

1000 

V 

1* 

r 

1000 

1000 

r 

1* 

10 

10 

10 

too 

1000 

5000 

1000 

1* 

1* 

r 

i* 

r 

i* 

i* 

r 

r 

r 

i* 

r 

r 

i* 

r 

r 

1 

i 

1 

t 

1,4 

1 

4 

1 

2 

2,4 

2,4 

1,2.4 

1,2,4 

4 

4 

1 

U233 

1,4 

1,2,4 

1,4 

1 

1 

1 

4 

4 

4 

4 

4 

4 

4 

4 

4 

4 

4 

4 

4 

4 

4 

4 

4 

1.4 

1,4 

1,4 

U226 

U227 

U228 

U228 

P118 

U121 

U230 

U231 

U232 

U234 

U182 

U235 

U236 

D001 

D002 

D003 

D004 

D005 

D006 

D007 

D008 

D009 

D010 

D011 

D012 

D013 

D014 

D015 

100 (45.4) 

100 (45.4) 

1# (0.454) 

1000## (454) 

100 (45.4) 

1000 (454) 

Mt (0.454) 

1000# (454) 

1000# (454) 

100 (45.4) 

5000 (2270) 

10# (4.54) 

10# (4.54) 

10# (4.54) 

1000 (454) 

1000 (454) 

5000 (2270) 

•1000## (454) 

1 ## (0.454) 

1000 (454) 

1# (0.454) 

1# (0.454) 

100 (45.4) 

100 (45.4) 

100 (45.4) 

1# (0.454) 

1000 (454) 

1# (0.454) 

1# (0.454) 

1 ## (0.454). 

1 (0.454) 

1 # # (0.454) 

1 (0.454) 

1 (0.454) 

Mt (0.454) 

1 (0.454) 

1# (0.454) 
13500 Federal Register / Vol. 50, No. 65 /- Thursday, April 4, 1985 / Rules and Regulations 

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

Hazardous Substance 

j 

CASRN Regulatory Synonyms 

Statutory 

RQ Code) 

RCRA 

Waste 

Number 

Final RQ 

Category 

Pounds(Kg) 

2,4-D 

* 2,4,5-TP 

Uracil, 5-(bis(2-chloroethyl)amino]-

Uracil mustard 

Uranyl acetate 

Uranyl nitrate 

Vanadic acid, ammonium salt.. 

Vanadium(V) oxide 

Vanadium pentoxide 

Vanadyl sulfate 

Vinyl acetate 

Vinyl chloride 

Vinylidene chloride 

Warfarin 

Xylene (mixed).. 

mXylenoL 

Yohimban-16-carboxyllc acid,11,17-dimethoxy-18-

[(3,4.5- trimethoxybenzoyl)oxy]-, methytester. 

Zinc t t 

ZINC AND COMPOUNDS.. 

Zinc acetate ;. 

Zinc ammonium chloride.... 

Zinc borate 

Zinc bromide 

Zinc carbonate 

Zinc chloride 

Zinc cyanide 

Zinc lluoride „.. 

Zinc formate 

Zinc hydrosutfite 

Zinc nitrate 

Zinc phenolsulfonate 

Zinc phosphide 

Zinc silicofluoride 

Zinc sulfate. 

Zirconium nitrate _ 

Zirconium potassium fluoride.. 

Zirconium sulfate 

Zirconium tetrachloride 

F001 

66751 

66751 

541093 

10102084 

36478769 

7803556 

1314621 

1314621 

27774136 

108054 

75014 

75354 

81812 

1330207 

108383 

95476 

106423 

1300716 

50555 

7440666 

Uracil mustard .'. 

Uracil, 5-[bis(2-chloroethyl)amino]-.. 

Ammonium vanadate.. 

Vanadium pentoxide.... 

Vanadium(V) oxide 

Ethene, chloro-. 

1,1-Dichloroethylene :. 

Ethene, 1.1-dichloro3-(alpha-Acetonylbenzyl)-4-hydroxycoumarin and salts... 

Benzene.dimethyl „ 

100 

100 

r 

1* 

5000 

5000 

1* 

1000 

1000 

1000 

1000 

V 

5000 

1* 

1000 

0-

pReserpine... 

557346 

52628258 

14639975 

14639986 

-1332076 

7699458 

3486359 

7646857 

557211 

7783495 

• 557415 

7779864 

7779886 

127822 

1314847 

16871719 

7733020 

13746899 

16923958 

14644612 

10026116 

1,4 

1,4 

4 

4 

1 

1 

4 

1.4 

1,4 

1 

1 

2,3,4 

1.2,4 

4 

1.4 

1000 

f 

1' 

1* 

1000 

5000 

1000 

5000 

1000 

5000 

10 

1000 

1000 

1000 

5000 

5000 

1000 

5000 

1000 

5000 

5000 

5000 

5000 

1 

4 

2 

2 

1 

1 

1 

1 

1 

1 

1.4 

1 

1 

1 

1 

1 

1,4 

1 

1 

1 

1 

1 

1 

D016 

D017 

U237 

U237 

P119 

P120 

P120 

U043 

U078 

P001 

U239 

P121 

8 

B 

X 

X 

D 

D 

C 

C 

C 

C 

D 

X 

o' 

B 

C 

C 

D 

C 

D 

C 

D 

C 

D 

A 

C 

C 

C 

D 

D 

C 

D 

C 

D 

C 

D 

D 

X 

100 (45.4) 

100 (45.4) 

1# (0.454) 

1# (0.454) 

5000## (2270) 

5000## (2270) 

1000 (454) 

1000## (454) 

1000## (454) 

1000## (454) 

5000 (2270) 

1# (0.454) 

5000# (2270) 

100 (45.4) 

1000 (454) 

1000(454) 

5000 (2270) 

Mttt (0.454) 

1000## (454) 

5000## (2270) 

1000## (454) 

5000## (2270) 

1000## (454) 

5000## (2270) 

10## (4.54) 

I000## (454) 

1000## (454) 

1000## (454) 

5000## (2270) 

5000## (2270) 

1000## (454) 

5000##(2270) 

1000## (454) 

5000 (2270) 

1000 (454) 

5000 (2270) 

5000 (2270) . 

1# (0.454) 
P.48 

Federal Register / Vol. 50, No, 65 / Thursday, April 4, 1985 / Rules and Regulations 13501 

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

Hazardous Substance CASRN Regulatory Synonyms 

Statutory 

RQ Code) 

RCRA 

.Waste 

Number 

Final RQ 

Category 

Pounds(Kg) 

The following spent halogenated solvents used in 

degreasing and sludges from the recovery of 

these solvents in degreasing operations: 

(a) Tetrachloroethylene 

(b) Trichloroethylene 

(c) Methylene chloride 

(d) 1,1,1-Trichloroethane 

(e) Carbon tetrachloride 

(0 Chlorinated fluorocarbons 

127184 

79016 

75092 

71556 

56235 

(N.A.) 

F002.. 

The following spent halogenated solvents and the 

still bottoms from the recovery of these solvents: 

(a) Tetrachloroethylene 

(b) Methylene Chloride 

(c) Trichloroethylene 

(d) 1,1,1-Trichloroethane 

(e) Chlorobenzene 

(0 1,1,2-Trichloro-1,2,2-trifluoroethane 

(g) o-Dichlorobenzene 

(h) Trichlorofluoromethane ..... 

127184 

75092 

79016 

71556 

108907 

76131 

106467 

75694 

F003 

The following spent non-halogenated solvents and 

the still bottoms from the recovery of these 

solvents: 

(a) Xylene 

(b) Acetone 

(c) Ethyl acetate 

(d) Ethylbenzene 

(e) Ethyl ether 

(f) Methyl isobutyl ketone 

(g) n-Butyl alcohol 

(h) Cyclohexanone 

(i) Methanol 

1330207 

67641 

141786 

100414 

60297 

108101 

71363 

108941 

67561 

F004. F004. 

The following spent non-halogenated solvents and 

the still bottoms from the recovery of these 

solvents: 

(a) Cresols/Cresylic acid 

(b) Nitrobenzene 

1319773 

98953 

F005 

The following spent non-halogenated solvents and 

the still bottoms from the recovery of these 

solvents: 

(a) Toluene.. 

(b) Methyl ethyl ketone... 

(c) Carbon disulfide 

(d) Isobutanol 

(e) Pyridine 

108883 

78933 

75150 

78831 

110861 

Wastewater treatment sludges from electroplating 

operations except from the following processes: 

(1) sulfuric acid anodizing of aluminum; (2) tin 

plating on carbon steel; (3) zinc plating 

(segregated basis) on cartoon steel; (4) aluminum 

or zinc-aluminum plating on carbon steel; (5) 

cleaning/stripping associated with tin, zinc and 

aluminum plating on carbon steel; and (6) 

chemical etching and milling of aluminum 

F007 

Spent cyanide plating bath solutions from 

electroplating operations (except for precious 

metals electroplating spent cyanide plating bath 

solutions) 

Plating bath sludges from the bottom of plating 

baths from electroplating operations where 

cyanides are used in the process (except for 

precious metals electroplating plating bath 

sludges) 

F009.. 

Spent stripping and cleaning bath solutions from 

electroplating operations where cyanides are 

used in the process (except for precious metals 

electroplating spent stripping and cleaning bath 

solutions) 

F009 

F010 

X 

C 

c 

c 

D 

D 

X 

X 

c 

c 

c B 

D 

B 

D 

1# (0.454) 

1000# (454) 

1000 (454) 

1000 (454) 

5000# (2270) 

5000 (2270) 

1# (0.454) 

1# (0.454) 

1000 (454) 

10O0# (454) 

1000 (454) 

100 (45.4) 

5000 (2270) 

100 (45.4) 

5000 (2270) 

100 (45.4) 

c 

0 

D 

C 

B 

D 

D 

D 

D 

X 

C 

C 

X 

C 

0 

D 

D 

X 

X 

1000 (454) 

5000 (2270) 

5000 (2270) 

1000 (454) 

100 (45.4) 

5000 (2270) 

5000 (2270) 

5000 (2270) 

5000 (2270) 

1## (0.454) 

1000# (454) 

1000 (454) 

1## (0.454) 

1000 (454) 

5000 (2270) 

5000# (2270) 

5000 (2270) 

1## (0.454) 

1# (0.454) 

10 (4.54) 

.0 (4.54) 

10 (4.54) 

10 (4.54) 
13502 Federal Register / Vol. 50, No. 65 / Thursday, April 4, 1985 / Rules and Regulations 

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

Hazardous Substance Regulatory Synonyms 

Statutory 

RQ Code) 

RCRA 

Waste 

Number 

Final RQ 

Category 

Pounds(Kg) 

Quenching bath sludge from oil baths from metal 

heat treating operations where cyanides are used 

in the process (except for precious metals heattreating quenching bath sludges) 

Spent cyanide solutions from salt bath pot cleaning 

from metal heat treating operations (except for 

precious metals heat treating spent cyanide 

solutions from salt bath pot cleaning) 

F012.. 

Quenching wastewater treatment sludges from 

metal heat treating operations where cyanides 

are used in the process (except for precious 

metals heat treating quenching wastewater 

teatment sludges) 

Wastewater treatment sludges from the chemical 

conversion coating of aluminum 

F024 _. 

Wastes, including but not limited to distillation 

residues, heavy ends, tars, and reactor deanout 

wastes, from the production of chlorinated 

aliphatic hydrocarbons,havtng carbon content 

from one to five, utilizing free radical catalyzed 

processes. (This listing does not include light 

ends, spent filters and filter aids, spent 

dessicants(sic). wastewater, wastewater 

treatment sludges, spent catalysts^nd wastes 

listed In Section 261.32.) 

K001. 

Bottom sediment sludge from the treatment ot 

wastewaters from wood preserving processes 

that use creosote and/or pentacnlorophenol 

Wastewater treatment sludge from the production 

of chrome yellow and orange pigments 

Wastewater treatment sludge trom the production 

of molybdate orange pigments 

Wastewater treatment sludge from the production 

of zinc yellow pigments 

K005.. 

Wastewater treatment sludge from the production 

of chrome green pigments 

Wastewater treatment sludge from the production 

ot chrome oxide green pigments (anhydrous and 

hydrated) 

Wastewater treatment sludge from the production 

of iron blue pigments 

Oven residue from the production ot chrome oxide 

green pigments 

Distillation bottoms from the production ot 

acetaldehyde from ethylene 

Distillation side cuts from the production of 

acetaldehyde from ethylene 

Bottom stream from the wastewater stripper in the 

production of acrylonitrile 

K013 _ 

Bottom stream from the acetonitrile column in the 

production of acrylonitrile 

K014.. 

Bottoms from the acetonitrile purification column in 

the production of acrylonitrile 

F011 

F012 

F024 

K002 

K003 

K004 

K006 

K009 

K010 

10 (4.54) 

10 (4.54) 

1# (0.454) 

1# (0.454) 

1# (0.454) 

1# (0.454) 

1# (0.454) 

1# (0.454) 

1# (0.454) 

1# (0.454) 

1# (0.454) 

1# (0.454) 

1# (0.454) 

1# (0.454) 

1# (0.454) 

1# (0.454) 

5000 (2270) 
Federal Register / Vol. 50, No. 65 / Thursday, April 4, 1985 / Rules and Regulations 13503 

P.50 

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

Hazardous Substance 

K015 

Still bottoms from thedistillation of benzyl chloride 

K016 

Heavy ends or distillation residues from the 

productionof carbon tetrachloride 

K017 „ 

Heavy ends (still bottoms) from the purification 

column in the production of epichlorohydrin 

K018 _ „ ,..„ „ 

Heavy ends from thefractionation column in ethyl 

chloride production 

Heavy ends from the distillation of ethylene 

dichloride in ethylene dichloride production 

K020 

Heavy ends from the distillation of vinyl chloride in 

vinyl chloride monomer production 

K021 _ 

Aqueous spent antimony catalyst waste from 

fluoromethanes production 

K022 '. 

Distillation bottom tars from the production of 

phenol /acetone from cumene 

K023 „ 

Distillation light ends from the production of phthalic 

anhydride from naphthalene 

K024 

Distillation bottoms from the production of phthalic 

anhydride from -naphthalene 

K025.....'. 

Distillation bottoms from the production of 

nitrobenzene by the nitration of benzene 

K026 

Stripping still tails from the production of methyt 

ethyl pyridines 

K027 

Centrifuge and distillation residues from toluene 

diisocyanate production 

K028 .- „ 

Spent catalyst from the hydrochlorinator reactor in 

the production of 1,1,1-trichloroethane 

K029 „ 

Waste from the product steam stripper in the 

production of 1,1,1-trichlordethane 

K030 _ _ 

Column bottoms or heavy ends from the combined 

production of trichloroethylene and 

perchloroethylene 

K031 ; 

By-product salts generated in the production of 

MSMA and cacodylic acid 

K032 

Wastewater treatment sludge from the production 

of chlordane 

K033 

Wastewater and scrub water from the chlorination 

of cyclopentadiene in the production of chlordane 

K034 

Filter solids from the filtration of 

hexachlorocyclopentadiene in the production of 

chlordane 

Wastewater treatment sludges generated in the 

production of creosote 

K036 , 

CASRN Regulatory Synonyms 

. 

• 

-

Statutory 

RO 

1 * 

r 

r 

r 

i* 

t* 

r 

r 

i* 

f 

r 

t* 

f 

f 

r 

f 

r 

f 

r 

t* 

r 

1* 

Code ) 

4 

4 

4 

4 

4 

4 

4 

4 

4 

4 

4 

4 

4 

4 

4 

4 

4 

4 

4 

4 

4 

4 

RCRA 

Waste 

Number 

K015 

K016 

K017 

K018 

K0I 9 

K020 

K021 

K022 

K023 

K024 

K025 

K026 

K027 

K028 

K029 

K030 

K031 

K032 

K033 

K034 

K035 

K036 

Category 

X 

X 

X 

X 

• X 

X 

X 

X 

r 

D 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

Final RQ 

Pounds(Kg) 

Mt (0.454) 

1# (0.454) 

1# (0.454) 

t # (0.454) 

1# (0.454) 

l # (0.454) 

t # (0.454) 

t # (0.454) 

5000 P"' 

5000 (2270) 

t # (0.454) 

1 # # (0.454) 

1# (0.454) 

Mt (0.454) 

1# (0.454) 

t# (0.454) 

1# (0.454) 

! # (0.454) 

1# (0.454) 

l # (0.454) 

1# (0.454) 

t (0.454) 
13504 .Federal Register / Vol. 50, No. 65 / Thursday, April 4, 1985 / Rules and Regulations 

P.51 

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

Hazardous Substance CASRN Regulatory Synonyms 

Statutory 

RQ Code) 

RCRA 

Waste 

' Number 

Final RQ 

Category 

Pounds(Kg) 

Still bottoms trom toluene reclamation distillation in 

the production of disulfoton 

K037 

Wastewater treatment sludges from the production 

of disulfoton 

K038.. 

Wastewater from tbe washing and stripping of 

phorate production 

K039 

Filter cake from the filtration of 

' diethylphosphorodithioic acid in the production of 

phorate 

K040.. 

Wastewater treatment sludge from the production 

ot phorate 

K041. 

Wastewater treatment sludge from the production 

of toxaphene 

K042,. 

Heavy ends or distillation residues from the 

distillation of tetrachlorobenzene in the production 

of 2,4,5-T 

2,6-Dichlorophenol waste from the production of 

2,4-D 

Wastewater treatment sludges from the 

manufacturing and processing of explosives 

Spent carbon from the treatment of wastewater 

containing explosives 

Wastewater treatment sludges from the 

manufacturing, formulation and loading of leadbased initiating compounds 

K047.. 

Pink/red water from TNT operations 

Dissolved air flotation (DAF) float from the 

petroleum refining industry 

K049.. 

Slop oil emulsion solids from the petroleum refining 

industry 

Heat exchanger bundle cleaning sludge from the 

petroleum refining industry 

K051. 

API separator sludge from the petroleum refining 

industry 

j Tank bottoms (leaded) from the petroleum refining 

industry 

Ammonia still lime sludge from coking operations 

Emission control dust/studge from the primary 

production of steel in electric furnaces 

Spent pickle liquor from steel finishing operations 

K069 

Emission control dust/sludge from secondary lead 

smelting 

K071. 

Brine purification muds from the mercury cell 

process in chlorine production, where separately 

prepurified brine is not used 

K037 

K039 

K041 

K042 

K047 

1 (0.454) 

1# (0.454) 

1## (0.454) 

1# (0.454) 

1# (0.454) 

1# (0.454) 

1# (0.454) 

10 (4.54) 

10 (4.54) 

1## (0.454) 

4 

4 

4 

4 

4 

4 

4 

4 

K050 

K051 

K052 

K060 

K061 

K062 

K069 

K071 

X 

X 

X 

X 

X 

X 

X 

X 

10 (4.54) 

1# (0.454) 

1# (0.454) 

1# (0.454) 

1# (0.454) 

1## (0.454) 

1# (0.454) 

1# (0.454) 

1# (0.454) 

1# (0.454) 

1 (0.454) 
Federal Register / Vol. 50, No. 65 / Thursday, April 4, 1985 / Rules and Regulations 13505 

P.52 

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

, 

Hazardous Substance 

K073 : 

Chlorinated hydrocarbon waste from the purification 

step of the diaphragm cell process using graphite 

anodes in chlorine production 

K083 

Distillation bottoms from aniline extraction 

K084 

Wastewater treatment sludges generated during the 

production of veterinary pharmaceuticals from 

, arsenic or organo-arsenic compounds 

K085 

° Distillation or fractionation column bottoms from the 

production of chlorobenzenes -

K086 

Solvent washes and sludges, caustic washes and 

sludges, or water washes and sludges from 

cleaning tubs and equipment used in the 

formulation of ink from pigments, driers, soaps, 

and stabilizers containing chromium and lead 

Decanter tank tar sludge from coking operations 

Distillation light ends from the production of phthalic 

anhydride from ortho-xylene 

Distillation bottoms from the production of phthalic 

anhydride from ortho-xytene 

K095 

Distillation bottoms from the production of 1,1,1-

trichloroethane 

K096 

Heavy ends from the heavy ends column from the 

production of 1,1,1-trichloroethane 

K097 „ 

Vacuum stripper discharge from the chlordane 

chlorinator in the production of chlordane 

K098 

Untreated process wastewater trom the production 

of toxaphene 

K099 ._ 

Untreated wastewater from the production of 2,4-0 

K100 

Waste leaching solution from acid leaching of 

emission control dust/sludge from secondary 

lead smelting (Components of this waste are 

identical with those of K069). 

K101 

Distillation tar residues from the distillation of 

aniline-based compounds in the production of 

veterinary pharmaceuticals from arsenic or 

organo-arsenic compounds 

K102 

Residue from the use of activated carbon tor 

decolorization in the production ot veterinary 

pharmaceuticals from arsenic or organo-arsenic 

compounds 

K103 _ 

Process residues from aniline extraction from the 

production of aniline 

K104 

Combined wastewater streams generated from 

nitrobenzene/aniline chlorobenzenes 

K105 : _.. 

Separated aqueous stream from the reactor product 

washing step in the production of chlorobenzenes 

K106 

Wastewater treatment sludge from the mercury cell 

- process in chlorine production 

CASRN Regulatory Synonyms 

• 

-

Statutory 

RO 

1* 

r 

1* 

r 

r 

r 

r 

r 

r 

r • 

r 

r 

i* 

r 

i" 

r 

r 

r 

r 

r 

Code) 

4 

4 

4 

4 ' 

4 

4 

4 

4 

4 

4 

4 

4 

4 

4 

4 

4 

4 

4 

4 

4 

RCRA 

Waste 

Number 

K073 

K083 

K084 

K085 

K086 

K087 

K093 

K094 

K095 

K096 

K097 

K098 

K099 

K100 

K101 

K102 

K103 

K104 

K105 

K106 

Category 

X ' O ' X X

X XDDXXXXX

X X X IDXX X 

=inal RQ 

Pounds(Kg) 

1# (0.454) 

100 (45.4) 

1# (0.454) 

1# (0.454) 

Mt (0.454) 

1## (0.454) 

5000 (2270) 

5000 (2270) 

1# (0.454) 

1# (0.454) 

. 1# (0.454) 

1# (0.454) 

1# (0.454) 

1# (0.454) 

1# (0.454) 

1# (0.454) 

100 (45.4) 

1# (0.454) 

1# (0.454) 

1 (0.454) 

See footnotes on following page. 
P.53 

13506 Federal Register / Vol. 50, No. 65 / Thursday, April 4, 1985 / Rules and Regulations 

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

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 

tt - no reporting of releases ot this hazardous substance is required if the diameter of the pieces of the solid metal released is equal to or exceeds 100 micromoters (0.004 inches) 

t t t - the RQ for asbestos is limited to friable forms only 

5 - the Agency may adjust the RQ for radionuclides in a future rulemaking; until then the statutory 1-pound RQ applies 

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

** • indicates that no RQ is being assigned to the generic or broad class 

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

## - indicates that an adjusted RQ is proposed in a separate NPRM in today's Federal Register 

ttittt - the Agency may adjust the RQ for methyl isocyanate in a future rulemaking; until then the statutory 1-pound RQ applies 

APPENDIX A - SEQUENTIAL CAS REGISTRY 

NUMBER LIST OF CERCLA HAZARDOUS 

SUBSTANCES 

CASRN 

50000 

50077 

50180 

50293 

50328 

50555 

51285 

51434 

51796 

52686 

528S7 

53703 

53963 

54115 

55185 

55630 

55914 

56042 

56235 

56382 

56495 

56531 

Hazardous Substance 

Formaldehyde 

Methylene oxide 

Azirino(2',3':3,4)pyrrolo(1,2-a)indole-4,7-diono,6-

amino-8- [((aminocaibonyl)oxy)methyt]* 

1,1 a,2,8.8a,8b-hexahydro-Ba-methoxy-5-methytMitomydn C 

Cyclophosphamide 

2H-1,3,2-Oxazaphosphorine,2-[bis(2-

chloroethyl)amino]tetrahydro-2-oxlde 

DDT 

4,4' DDT 

Dichlorodiphenyl trichloroethane 

Benzo[a]pyrene 

3,4-Benzopyrene 

Reserpine 

Yohimban-16-carboxylic acid, 11,17-dimethoxy*18-

l(3,4,5-trimethoxybenzoyl)oxy]-.methyl ester 

2,4-Dinitrophenol 

Phenol, 2,4-dinitro* 

1,2-Benzenediol.4-[ 1 -hydroxy-2-

(methylamino)ethyl)-

Epinephrine 

Carbamic acid, ethyl ester 

Ethyl carbamate (Urethan) 

Trichlorfon 

Famphur 

Phosphorothioic acid. 0,0-dimethyl-0*[p-[(dtmethylamino)-8u!fonyl]phenytj ester 

Dibenz[a.h)anthracene 

1,2:5,&-Dibenzanthracene 

Dft)enzo[a,h]anthracene 

Acetamide. N-9H-fhioren-2-yt2-Acetylaminofluorene 

Nicotine and salts 

Pyridine, (S)-3-(1-methyl-2-pyrrolidiny1'-,and salts 

"Ethanamine, N-ethyl-N-nitrosoN-Nitrosodiethylamine 

Nitroglycerine 

1,2,3-Propanetriol, trinitrateDiisopropyl fluorophosphate 

Phosphorofluoridic acid.bisO -methylethyl) ester 

MethyflhiouracJ 

4(1H)-Pyrimidinone, 2.3-<Shydro-6-methyl-2-

thioxoCarbon tetrachloride 

Methane, tetrachloroParathton 

Phosphorothioic acid.O.O-diethyl 0-(pnitrophenyl)ester 

Benz[|]aceanthrylene. 1.2-dihydro-3-methy.-

3-Methylcholanthrene 

Dtethylstifbestroi 

4,4'-Stilbenediol, alpha.alpba'-diethyl* 

APPENDIX A - SEQUENTIAL CAS REGISTRY 

' NUMBER LIST OF CERCLA HAZARDOUS 

SUBSTANCES—Continued 

CASRN 

56553 

56724 

57125 

57147 

57249 

57749 

57976 

58899 

58902 

• 59507 

60004 

60117 

60297 

60344 

60515 

60571 

61825 

62384 

62442 

62500 

62533 

62555 

62566 

Hazardous Substance 

BenzCalanthracene 

1,2-Benzanthracene 

Benzo[a]anthracene 

Coumaphos 

Cyanides (soluble cyanide salts), not elsewherespecified 

1,1 -Dlmethylhydrazlne 

Hydrazine, 1,1-dimethyl* 

Strychnidln-10-one, and salts 

Strychnine and salts 

Chlordane 

Chlordane, technical 

4,7-Methanoindan, 1,2,4,5,6,7,8,8-octachloro3a,4,7,7a-tetrahydro1,2-Benzanthracene, 7,12-dimethyt7,12-Dimethylbenzr.alanthracene 

gamma - BHC 

Hexachlorocyclohexane (gamma isomer) 

Lindane * 

Phenol, 2,3,4,6-tetrachloro2,3.4,6-Tetrachlorophenol 

4-Chloro-m-cresol 

p-Chloro-m-cresol 

Phenol, 4-chloro-3-methylEthylenediamlne tetraacetic acid (EDTA) 

Benzenamine, N.N-dimethyl-4-phenylazoDimethylaminoazobenzene 

Ethane, 1.1'-oxybisEthyl ether 

Hydrazine, methytMethy! hydrazine ' 

Dimethoate 

Phosphorodithioic acid.O.O-dimethyl S-|2(methylan*ino)-2-oxoethyl] ester 

Dieldrin * 

1,2.3.4,10,10-Hexachloro-6.7-epoxy1,4,4a,5,6,7,8,8a-oetahydro-endo,exo-1,4r5,8-

dlmethanonaphthalene 

Amitrole 

1H-1,2,4-Triazol-3-amine 

Mercury, (acetato-O)phenylPhenytmercuric acetate 

Acetamide, N-(4-ethoxyphonyt)-

Phenacetin 

Ethyl methanesulfonate 

Methanesulfonic acid, ethyl ester 

Aniline 

Benzenamine 

Ethanethioamide 

Thioacetamide 

Carbamide, thk> 

Thiourea 

APPENDIX A - SEQUENTIAL CAS REGISTRY 

NUMBER LIST OF CERCLA HAZARDOUS 

SUBSTANCES—Continued 

CASRN 

62737 

62748 

62759 

63252 

64186 

64197 

65850 

66751 

67561 

67641 

67663 

67721 

70267 

70304 

71363 

71432 

71556 

72208 

72435 

72548 

72559 

72571 

74839 

Hazardous Substance 

Dichlorvos 

Acetic acid, fluoro-, sodium salt 

Ftuoroacetic acid, sodium salt 

DlmethytnUrosamine 

N-Nitrosodimethytamine 

Carbaryf 

Formic add 

Methanoic acid 

Acetic acid 

Benzoic acid 

Uracil, 5-(bis(2-chloroethyl)amino)-

Uracil mustard 

Methanol 

Methyl alcohol 

Acetone 

2-Propanone 

Chloroform 

Methane, bichtoroEthane, 1,1,1.2.2,2-hexachloroHexachloroethane 

Guantdine, N-rttroso-N-methyl-N'-nltro* 

N-Methyt-N'-nitro-N-nitrosoguanidine 

Hexachlorophene 

2.2'-Methylenebis(3.4,6-trichlorophenot) 

1-Sutanol 

n-Bulyt alcohol 

Benzene 

Methyl chloroform 

1.1,1-Trichkxoethane 

Endrin 

1,2.3.4,10.10-Hexachloro-6.7-epoxy* 

1.4,4a.5.6.7.8,8a-octahydro-endo,ondo-1,4:5,8-

dimethanonaphthalene 

Ethane, 1,1.1 -trichloro-2,2-bis(p-methoxyphenyl>-

Methoxychtor 

DDD 

4.4' DDD 

Dichlorodiphenyl dichloroethane 

TDE 

DDE 

4.4' DDE 

2,7-Naphthalenedisulfonlc actd.3.3'-[(3.3'-dimotnyKt, 1 -biphenyl)-4,4'-<jiyl)-bis(azo)]bis(5-amino4-hydroxy)-tetrasodium salt 

Trypan blue 

Methane, bromo* 

Methyl bromide 

,4884 

Methane, chloroMethyf chloride 

Methane, iodoMethyl iodide 
P.54 

Federal Register / Vol. 50, No. 65 / Thursday, April 4, 1985 / Rules and Regulations 13507 

APPENDIX A - SEQUENTIAL CAS REGISTRY 

NUMBER LIST OF CERCLA HAZARDOUS 

SUBSTANCES—Continued 

CASRN 

74895 

74908 

74931 

74953 

75003 

75014 

75047 

75058 

75070 

75092 

75150 

75207 

75218 

75252 

75274 

75343 

75354 

75365 

75445 

75503 

75558 

75569 

75605 

75649 

75694 

75718 

75865 

75876 

75990 

76017 

76448 

Hazardous Substance 

Monomethylamine 

Hydrocyanic acid 

Hydrogen cyanide 

Mathanethiol 

Methytmercaptan 

Thiomethanol 

Methane, dibromoMethylene bromide 

Chloroethane 

Ethene, chloroVinyl chloride 

Monoethylamine 

Acetonitrile 

Ethanenitrile 

Acetaldehyde 

Ethanat 

Methane, dichloroMethylene chloride 

Carbon bisulfide 

Carbon disulfide 

Calcium carbide 

Ethylene oxide 

Oxirane 

Bromoform 

Methane, tribromoDichlorobromomethane 

1,1-Dichloroethane 

Ethane, 1,1-dichloroEthylidene dichloride 

1,1 -Dichloroethylene 

Ethene, 1,1-dichloroVinylidene chloride 

Acetyl chloride 

Ethanoyl chloride 

Carbonyl chloride 

Phosgene 

Trimethylamine 

2-Methylaziridine 

1,2-Propytenimine 

Propylene oxide 

Cacodylic acid 

Hydroxydimethylarsine oxide 

tert-Butylamine 

Methane, trichlorofluoroTrichloromonofluoromethane 

Dichlorodifluoromethane 

Methane, dichlorodifluoroAcetone cyanohydrin 

2-Methyflactonitrile 

Propanenitrile, 2-hydroxy-2-methylAcetaldehyde, trichloroChloral 

2,2-Dichloropropionic acid 

Ethane, pentachloroPentachloroethane 

Heptachlor 

4,7-Methano~1H-indene,l,4,5,6.7,8.8-heptachloro3a,4,7,7a-tetrahydroAPPENDIX A - SEQUENTIAL CAS REGISTRY 

NUMBER LIST OF CERCLA HAZARDOUS 

SUBSTANCES—Continued 

CASRN 

77474 

77781 

78002 

78591 

78795 

78819 

. 78831 

78875 

78886 

78933 

78999 

79005 

79016 

79061 

79094 

79107 

79196 

79221 

79312 

79345 

79447 

79469 

80159 

80626 

81072 

81812 

82688 

83329 

84662 

84742 

Hazardous Substance 

1,3-Cyclopentadiene, 1,2,3,4,5,5-hexachloroHexachlorocyclopentadiene 

Dimethyl sulfate 

Sulfuric acid, dimethyl ester 

Plumbane. tetraethytTetraethyt lead 

Isophorone 

Isoprene 

iso-Butylamine 

Isobutyl alcohol 

1-Propanol, 2-methyl1,2-Dichloroproparte 

Propylene dichloride 

2,3-Dichloropropene 

2-Butanone 

Methyl ethyl ketone 

1,1 -Dichloropropane 

Ethane, 1.1,2-trichloro1,1,2-Trichloroethane 

Trichloroethene 

Trichloroethylene 

Acryfamide 

2-Propenamide 

Propionic acid 

Acrylic acid 

2-Propenoic acid 

Hydraztnecarbothioamkie 

Thiosemicarbazide 

Carbonochloridic acid, methyl ester 

Methyl chlorocarbonate 

iso-Butyric acid 

Ethane. 1,1,2,2-tetrachloro1,1,2,2-Tetrachloroethane 

Carbamoyl chloride, dimethylDimethylcarbamoyt chloride 

2-Nitropropane 

Propane, 2-nitroalpha,alpha-Dimethylbenzylhydroperoxide 

Hydroperoxide, 1-methyl-1-phenylethylMethyl methacrytate 

2-Propenoic acid. 2-methyl-, methyl ester 

1,2-Benzisothiazolin-3-one, 1.1-dioxide, and salts 

Saccharin and salts 

3-(alpha-Acetonylbenzyl)-4-hydroxycoumann and 

salts 

Warfarin 

Benzene, pentachloronitroPentachloronitrobenzene 

Acenaphthene 

1,2-Benzenedicarboxylic acid.diethyl ester 

Diethyl phthalate 

1,2-Benzenedicarboxylic acid.dibutyl ester 

n-Butyl phthalate 

Dibutyl phthalate 

Oi-n-butyl phthalate 

APPENDIX A - SEQUENTIAL CAS REGISTRY 

NUMBER LIST OF CERCLA HAZARDOUS 

SUBSTANCES—Continued 

CASRN 

85007 

85018 

85449 

85687 

86306 

86500 

86737 

86884 

87650 

87683 

87865 

88062 

88722 

88755 

68857 

91087 

91203 

91225 

91587 

91598 

91805 

91941 

92875 

93721 

93765 

93798 

94111 

94586 

94597 

94757 

Hazardous Substance 

Diquat 

Phenanthrene ' 

1,2-Benzenedicarboxylic acid anhydride 

Phthalic anhydride 

Butyl benzyl phthalate 

N-Nitrosodiphenylamine 

Guthion 

Fluorene 

alpha-Naphthylthiourea • 

Thiourea, 1-naphthalenyl- .-

2,6-Dichlorophenol 

Phenol, 2,6-dichloro1,3-Butadlene, 1,1,2.3,4,4-hexachloroHexachlorobutadiene 

Pentachlorophenol 

Phenol, pentachlorophenol, 2,4,6-trichloro 

2,4,6-Trichlorophenol 

o-Nitrotoluene 

o-Nitrophenol 

2-Nrtrophenol 

Dinoseb 

Phenol, 2,4-dinitro-6-(1-methylpropy1)-

Benzene, 2,4-diisocyanatomethylTotuene diisocyanate 

Naphthalene 

Quinoline 

beta-Chloronaphthalene 

2-Chloronaphthalene 

Naphthalene,' 2-chloro2-Naphthylamine 

beta-Naphthylamine 

Methapyrilene 

Pyridine, 2-t(2-(dimethylamino)ethyl)-2-thenytamino]-

(1,1'-Biphenyl)-4,4'diamine,3,3'dichloro3,3'-Dichlorobenzidine 

Benzidine 

(1,1 '-Bipheny1)-4,4'diamine 

Propionic acid, 2-(2,4,5-trichlorophenoxy)-

Silvex 

2,4,5-TP acid 

2,4,5-T 

2,4,5-T acid 

2,4,5-Trichlorophenoxyacetic acid 

2,4,5-T esters 

2,4-D Esters 

Benzene, 1,2-methy.enedioxy-4-propylDihydrosafrole 

Benzene, 1,2-methytenedioxy-4-allylSafrole 

2,4-0 Acid 

2,4-D, salts and esters 

2,4-Dichlorophenoxyacetic acid, salts and esters 
P.55 

13503 Federal Register / Vol. 50, No. 65 / Thursday, April 4, 1985 / Rules and Regulations 

APPENDIX A - SEQUENTIAL CAS REGISTRY 

NUMBER LIST OF CERCLA HAZARDOUS 

SUBSTANCES—Continued 

CASRN 

94791 

94804 

95476 

95487 

95501 

95578 

95807 

95943 

95954 

96128 

96457 

97632 

98011 

98077 

98099 

98828 

98862 

98873 

98884 

88953 

99081 

99354 

Hazardous Substance 

2.4-D Esters 

2,4-D Esters 

Benzene, o-dimethylo-Xylene 

o-Cresol 

O-Cresylic acid 

Benzene, 1,2-dichloro1,2-Dichlorobenzene 

o-Dichlorobenzene 

2-Chlorophenol 

o-Chlorophenol 

Phenol, 2-chloro* 

Diaminotoluene 

Toluenediamine 

Benzene, 1.2,4,5-tetrachloro* 

1,2,4,5-Tetrachlorobenzene 

Phenol, 2,4,5-trichloro* 

2,4,5-Trichlorophenol 

1,2-Dibromo-3-chloropropane 

Propane, 1,2-dibromo-3-chloroEthylenethiourea 

2-lmidazolidinethione 

Ethyl methacrylate 

2-Propenoic acid, 2-methyl-, ethyl ester 

2-Furancarboxaldehyde 

Furfural 

Benzene, trichloromethyl* 

Benzotrichloride 

Benzenesulfonic acid chloride 

Benzenesulfonyl chloride 

Benzene, 1-methytethylCumene 

Acetophenone 

Ethanone, 1-phenylBenzal chloride 

Benzene, dichloromethylBenzoyl chloride 

Benzene, nitroNitrobenzene 

m-Nitrotoluene 

Benzene, 1,3.5-trinltrosym-Trmitrobenzene 

99558 

99650. 

99990 

100016 

100027 

100254 

100414 

t00425 

100447 

Benzenamine, 2-methyl-5-nitn> 

5-Nitro-o-toluidine 

m-Dinitrobenzene 

p-Nitrotoluene 

Bonzenamine, 4-nitrop-Nitroaniline 

p-Nitrophenol 

4-Nitrophenol . 

Phenol. 4-nltrop-Dinltrobenzene 

Ethylbenzene 

Styrene 

Benzene, chloromethytBenzyl chloride 

APPENDIX A - SEQUENTIAL CAS REGISTRY 

NUMBER LIST OF CERCLA HAZARDOUS 

SUBSTANCES—Continued 

CASRN 

100470 

100754 

101144 

101553 

103855 

105464 

105679 

108423 

107493 

107926 

108054 

108101 

108247 

108316 

Hazardous Substance 

Eenzonitrie 

N-Nitrosopiperidine 

Pyridine, hexahydro-N-nitrosoBenzenamine, 4,4*-methylenebis(2-chloro4,4'-Methy1enebis(2-chloroaniline) 

Benzene, 1-bromo-4-phenoxy4-Bromophenyl phenyl ether 

N-Phenylthiourea 

Thiourea, phenylsec-Butyt acetate 

2,4-Dimethylphenol 

Phenol, 2,4-dimethylBenzene, p-dimathytp-Xylene 

p-Cresol . 

p-Cresylic acid 

Benzene, 1,4-dlchloro1,4-Dichlorobenzene 

p-Dichlorobenzene • 

106478 

106514 

106898 

106934 

107028 

107051 

107062 

107108 

107120 

107131 

107153 

107186 

107197 

Benzenamine, 4-chlorop-Chloroaniline 

p-Benzoquinone 

1,4-Cyclohexodienedione 

1 -Chloro-2.3-epoxypropane 

Epichlorohydrin 

Oxirane, 2-(chloromethyl)* 

Ethane, 1,2-dibromoEthylone dibromide 

Acrolein 

2-Propenal 

AJiyl chloride 

1,2-Oichloroethane 

Ethane, 1,2-dichloroEthylene dichloride 

1-Propanamine 

n-Propylamine 

Ethyl cyanide 

Propanenitrile 

Acrylonitrile 

2-PropenenHrlle 

Ethylenediamine 

Allyl alcohol 

2-Rropen-1-ol 

Propargyl alcohol 

2-Propyn-1-ol 

Acetaldehyde, chloroChloroacetaldehyde 

Chloromethyl methyl ether 

Methane, chloromethoxyPyrophosphoric acid, tetraethyl ester 

Tetraethyl pyrophosphate 

Butyric ecld 

Vinyl acetate 

Methyl isobutyt Ketone 

4-Methyl-2-pentanone 

Acetic anhydride 

2,5-Furandione 

Maleic anhydride 

APPENDIX A - SEQUENTIAL CAS REGISTRY 

NUMBER LIST OF CERCLA HAZARDOUS 

SUBSTANCES—Continued 

CASRN 

108383 

108394 

108463 

108601 

108883 

108907 

108941 

108952 

108985 

109068 

109739 

109773 

* 109897 

109999 

110009 

110167 

110178 

110190 

110758 

110827 

110861 

111444 

111546 

111911 

115026 

115297 

Hazardous Substance 

Benzene, m-dimethylm-Xylene 

m-Cresol 

m-Cresylic acid 

1.3-Benzenedlol 

Resordnol 

Bls(2-chlorolsopropyl) ether 

Propane, 2,2'-oxybis(2-chloroBenzene. methylToluene 

Benzene, chloroChlorobenzene 

Cyclohexanone 

Benzene, hydroxyPhenol 

Benzenethiol 

Thiophenol 

2-Picoline 

Pyridine, 2-methylButylamlne 

Malononitrile 

Propanedinitrile 

Diethylamlne 

Furan, tetrahydroTetrahydrofuran 

Furan 

Furfuran 

Maleic acid 

Fumaric add 

iso-Butyl acetate 

2-Chloroethyl vinyl ether 

Ethene, 2-chloroethoxy* 

Benzene, hexahydroCyclohexane 

Pyridine 

Bis (2-chloroethyl) ether 

Dichloroethyl ether 

Ethane, 1,1'-oxybis(2-chloro1,2-Ethanediytbiscarbamodithioic add 

Ethylenebis(dithiocarbamic add) 

Bis(2-chloroethoxy) methane 

Ethane, 1,1'-[methylenebis(oxy)]bis(2-chtr--oAzaserine 

L-Serine, diazoaoetate (ester) 

Endosullan 

5-Norbornene-2J-dimethanol, 1.4,5.6,7.7 -

hexachloro.cydic sulfite 

115322 

116063 

117806 

117817 

117840 

Kelthane 

Aldicarb 

Propanal, 2-met!-y)-2-tmethy!th)o>-.0-

((methytamino)carbonyl]oxlme 

Dichlone 

t ,2-Benzenedicarboxylic ack1.fbJsl2-erhylhsi-yt)l 

ester 

Bis(2-ethylhexyl)phthalate 

1,2-Bdnzenetficarboxylic add,tfi-rvocty1 ester 

Dl-n-octyl phthalate 
^.56_ 

Federal Register / Vol. 50, No. 65 / Thursday, April 4, 1985 / Rules and Regulations 13509 

APPENDIX A - SEQUENTIAL CAS REGISTRY 

NUMBER LIST OF CERCLA HAZARDOUS 

SUBSTANCES—Continued 

CASRN 

118741 

119904 

119937 

120127 

120581 

120821 

120832 

121142 

121211 

121299 

121448 

121755 

122098 

122667 

123331 

123626 

123637 

123739 

123864 

123911 

123922 

124049 

124403 

124414 

124481 

126727 

126987 

127184 

127822 

129000 

130154 

131113 

131748 

131895 

Hazardous Substance 

Benzene, hexachloroHexachlorobenzene 

(1,1'-Biphenyl)-4,4'diamine,3,3'dimethoxy3,3'-Dimethoxybenzidine 

(1,1 'Biphenyt)-4,4'-diamine,3,3'-dimethy1-

3,3'-Dimethylbenzidine 

Anthracene 

Benzene, 1,2-methy.enedioxy-4-propenylIsosafrote 

1,2,4-Trichlorobenzene 

2,4-Dichlorophenol 

Phenol, 2,4-dichloroBonzene. 1-methyl-2,4-dinitro2,4-Dinitrotoluene 

Pyrethrins 

Pyrethrins 

Triothylamine 

Malathion 

alphaLalpha-Dimethylphenethylamine 

Ethanamine, 1,1-dimethyl-2-phenyl1,2-Diphenylhydrazine 

Hydrazine, 1,2*dlphenyt1,2*Dihydro-3,6-pyridazinedione 

Maleic hydrazide 

Propionic anhydride 

Paraldehyde 

1,3,5-Trioxane, 2,4,6-trimethyl2*Butenal 

Crotonaldehyde 

Butyl acetate 

1,4-Diethylene dioxide 

1,4-Dioxane 

iso-Amyl acetate 

Adipic acid 

Dimethylamine 

Methanamine, N-methytSodium methylate 

Chlorodibromomethane 

1-Propanol, 2,3-dibromo-, phosphate (3:1) 

Tris(2,3-dibromopropyl) phosphate 

Methacrylonitrile 

2-Propenenitrile, 2-methytEthene, 1,1,2.2-tetrachtoroTetrachloroethylene 

Zinc phenoisutfonate 

Pyrene 

1,4-Naphthalenedione 

1/-Naphthoquinone 

1,2-Benzenedicarboxylic add,dimethyt ester 

Dimethyl phthalate 

Ammonium picrate 

Phenol, 2,4,6-trinitro-, ammonium salt 

4,6-Dinitro-o-cyclohexylphenol 

Phenol, 2-cydohexyt*4,6-d|nitroAPPENDIX A - SEQUENTIAL CAS REGISTRY 

NUMBER LIST OF CERCLA HAZARDOUS 

SUBSTANCES—Continued 

CASRN 

133062 

134327 

137268 

140885 

141786 

142289 

142712 

142847 

143339 

143500 

145733 

148823 

151508 

151564 

152169 

156605 

.189559 

191242 

193395 

205992 

206440 

207089 

208966 

218019 

225514 

297972 

298000 

298022 

298044 

300765 

301042 

302012 

Hazardous Substance 

Captan 

1-Naphthylamine 

alpha-Naphthylamine 

Bis(dimethylthiocarbamoyt) disulfide 

Thiram 

Ethyl acrylate 

2-Propenoic add, ethyl ester 

Acetic acid, ethyl ester 

Ethyl acetate 

1,3-Dichloropropane 

Cupric acetate 

Dipropylamlne 

1-Propanamine, N-propytSodium cyanide 

Decachlorooctahydro-1,3,4-metheno*2Hcyclobuta[<^d)-pentalen-2-ona 

Kepone 

Endothall 

7-Oxabicyclo[2,2,1]heptane-2,3-dicarboxylic 'acid 

Alanine, 3-(p-bis(2-chlc-roathyf)amino]phenyl-,LMelphaian 

Potassium cyanide 

Aziridine 

Ethylenimine 

Diphosphoramide, octamethytOctamethytpyrophosphoramide 

1,2-trans-Dichloroethylene 

Ethene, trans-1,2-dichloro1,2;7,6-Dibenzopyrene 

Dibenz[a,i]pyrene 

Benzo[ghi]peryfene 

lndeno(t ,2,3-cd)pyrene 

1,10-( 1,2-Phenylene)pyrene 

Benzotblfluoranthene 

Benzotj.tOfluorene 

Fluoranthene 

Benzo [k ] fluoranthene 

Acenaphthylene 

1,2-Benzphenanthrene 

Chrysene 

BenzCclacridine 

3,4-Benzacridine 

O.O-Diethyl O-pyrazinyl phosphorothioate 

Phosphorothioic acid, O.O-diethyl, O-pyrazinyl 

ester 

O.O-Dimethyt O-p-nitrophenyl phosphorothioate 

Methyl parathion 

Phorate 

Phosphorodithioic add, O.O-diethyl S-

(ethyrthio),methyl ester 

0,0-Oiethyl S-[2-(ethylthio)ethyl) phosphorodithioate 

Disulfoton 

Naled 

Acetic acid, lead salt 

Lead acetate 

Diamine 

Hydrazine 

APPENDIX A - SEQUENTIAL CAS REGISTRY 

NUMBER LIST OF CERCLA HAZARDOUS 

SUBSTANCES—Continued 

CASRN 

303344 

305033 

309002 

311455 

315184 

319846 

319857 

319868 

329715 

330541 

333415 

353504 

357573 

460195 

465736 

492808 

494031 

496720 

504245 

504609 

506616 

506649 

506683 

506774 

506876 

506967 

509148 

510156 

513495 

528290 

534521 

540738 

Hazardous Substance 

Lasiocarpine 

Butanoic acid, 4-tbis(2-chloroethyl)amino] benzeneChlorambudl 

Aldrin 

.1,2,3,4,10,10-Hexachloro-1,4,4a,5.8,8ahexahydro-1,4:5,8-epdo,exodimethanonaphthalene 

Diethyl-p-nitrophenyl phosphate 

Phosphoric add.diethyl.p-nrtrophenyl ester 

Mexacarbate 

alpha - BHC 

beta - BHC 

delta - BHC 

2,5-Dinitrophenol 

Diuron *. 

Diazinon 

Carbon oxyfluoride 

Carbonyl fluoride 

Brudne 

Strychnidin-10-one, 2,3-dimethoxyCyanogen 

Hexachlorohexahydro-endo.endodimethanonaphthalene 

1,2,3,4,10,10- Hexachloro-1,4,4aA8,8ahexahydro-1,4:5,8-endo,endodimethanonaphthalene 

Auramine 

Benzenamine, 4,4'-carbonimidoytbis (N,N-dimethylChlomaphazine 

2*Naphthyiamine, N,N-bls(2-chloroethyl)-

Diaminotoluene 

Toluenediamine 

4-Amlnopyridine 

4-Pyridinamine 

1*Methy1butadiene 

1,3-Pentadiene 

Potassium silver cyanide 

Silver cyanide 

Bromine cyanide 

Cyanogen bromide 

Chlorine cyanide 

Cyanogen chloride 

Ammonium carbonate 

Acetyl bromide 

Methane, tetranltroTetranitromethane 

Benzeneacetic acid. 4-chloro-alpha-(4-chlorophenyl)-alpha-hydroxy-,ethyl oster 

Ethyl 4,4'-dichlorobenzilate 

sec-Butylamine 

o-Dinitrobenzene 

4,6-Dinitro-o-cresol and salts 

Phenol,2,4*dinftro-6-methyl-, and salts 

1,2-Dimethylhydrazine. 

Hydrazine, 1,2-dimethyl-
P.57. 

13510 Federal Register / Vol. 50, No. 65 / Thursday, April 4, 1985 / Rules and Regulations 

APPENDIX A - SEQUENTIAL CAS REGISTRY 

NUMBER LIST OF CERCLA HAZARDOUS 

SUBSTANCES—Continued 

CASRN 

540885 

541093 

541537 

541731 

542621 

542756 

542767 

542881 

543908 

544183 

544923 

554847 

557197 

557211 

557346 

557415 

563122 

563688 

573568 

584849 

591082 

592018 

592041 

592858 

592876 

594423 

598312 

606202 

608935 

609198 

610399 

Hazardous Substance 

ten-Butyl acetate 

Uranyl acetate 

2,4-Dithiobluret 

Thioimidodicarbonic diamide 

Benzene, 1,3-dlchloro1,3-Dichlorobenzene 

m-Dichlorobenzene -

Barium cyanide 

1,3-Dichloropropene 

Propene, 1,3-dichloro3-Chloroproplonitrile 

Propanenitrile, 3-chloroBis(chloromethyl) ether 

Methane, oxybis(chloroCadmlum acetate 

Cobaltous formate 

Copper cyanide 

m-Nitrophenol 

Nickel cyanide 

Nickel(ll) cyanide 

Zinc cyanide 

Zinc acetate 

Zinc formate 

Ethion 

Acetic acid, thatlium(l) salt 

Thallium(l) acetate 

2.6-Dinitrophenol 

Benzene, 2,4-diisocyanatomethylToluene diisocyanate 

Acetamide, N-(aminothioxomethyl)-

1-Acetyl-2-thiourea 

Calcium cyanide 

Mercuric cyanide 

Mercuric thiocyanate 

Lead thiocyanate 

Methanesulfenyl chloride, trichloro-. 

Trichloromethanesulfenyl chloride 

Bromoacetone 

2-Propanone, 1-bromoBenzene, 1-methyl-2,6-dinitro* 

2,6-Dinitrotoluene 

Benzene, pentachloroPentachlorobenzene 

3,4,5-Trichlorophenol 

3.4-Dinitrotoluene 

615532 

621647 

Carbamic acid, methylnitroso-.etriyl ester 

N-Nitroso-N-methylurethane 

Di-n-propytnitrosamlne 

N-Nitrosodi-n-propylamine , 

Isocyanic add, methyl ester 

Methyl isocyanate 

APPENDIX A - SEQUENTIAL CAS REGISTRY 

NUMBER LIST OF CERCLA HAZARDOUS 

SUBSTANCES—Continued 

CASRN 

625161 

626380 

628637 

628864 

630104 

630206 

631618 

636215 

640197 

684935 

692422 

696286 

757584 

759739 

764410 

765344 

815827 

823405 

924163 

930552 

933755 

933788 

959988 

1024573 

1031078 

1066304 

1066337 

1072351 

1111780 

Hazardous Substance 

tert-Amyl acetate 

sec-Amy! acetate 

Amyl acetate 

Fulminic add, mercury(ll)salt 

Mercury fulminate 

Carbamimidoselenoic acid 

Selenourea 

Ethane, 1,1,1,2-tetrachloro1,1,1,2-Tetrachloroethane 

Ammonium acetate 

Benzenamine, 2-methyl-, hydrochloride 

o-.Toluidine hydrochloride 

Acetamide, 2-fluoroRuoroacetamide 

Carbamide, N-methyl-N-nitroso* 

N-Nitroso-N-methyturea 

Arsine, diethylDiethylarsine 

Dichlorophenylarsine 

Phenyl dichloroarsine 

Hexaethyl tetraphosphate 

Tetraphosphbric add, hexaethyl ester 

Carbamide, N-ethyl-N-nltrosoN-Nitroso-N-ethylurea 

2-Butene, 1,4-dichloro1,4-Dlchloro-2-butene 

Glyddylaldehyde 

1-Propanal, 2,3-epoxyCupric tartrate 

Diaminotoluene 

Toluenediamine 

1-Butanamine, N-butyl-N-nitrosoN-Nitrosodi-n-butylaptine 

N-Nitrosopyrrolidine 

Pyrrole, tetrahydro-N-nitroso2,3,6-Trichlorophenol 

2,3,5-Trichlorophenol 

alpha - Endosulfan 

Heptachlor epoxide 

Endosulfan sulfate 

Chromic acetate 

Ammonium bicarbonate 

Lead stearate 

Ammonium carbamate 

1120714 

11855*75 

1194656 

1300716 

1303282 

Ethanol, 2,2'-(nitrosoimino)blsN-Nitrosodiethanolamine 

1,2-Oxathiolane, 2,2-dloxide 

1,3-Propane sultone 

Ferric ammonium citrate 

Dichtobenil 

Xylenol 

Arsenic(V) oxide 

Arsenic pentoxide 

APPENDIX A - SEQUENTIAL CAS REGISTRY 

NUMBER LIST OF CERCLA HAZARDOUS 

SUBSTANCES—Continued 

CASRN 

1303328 

1303339 

1309644 

1310583 

1310732 

1314325 

1314621 

1314803 

1314847 

1314870' 

1314961 

1319728 

1319773 

1320189 

1321126 

1327522 

1327533 

1330207 

1332076 

1332214 

1333831 

1335326 

1336216 

1336363 

1338234 

1338245 

1341497 

1464535 

1563662 

1615801 

1746016 

1762954 

1863634 

1888717 

Hazardous Substance 

Arsenic disulfide 

Arsenic trlsulfide 

Antimony trioxide 

Potassium hydroxide 

Sodium hydroxide 

Thallic oxide 

Thallium(lll) oxide 

Vanadium(V) oxide 

Vanadium pentoxide 

Phosphorus pentasulflde 

Phosphorus sulfide 

Sulfur phosphide 

Zinc phosphide 

Lead sulfide 

Strontium sulfide 

2,4,5-T amines 

Cresol(s) 

Cresylic add 

2,4-D Esters 

Nitrotoluene 

Arsenic add 

Arsenlc(lll) oxide 

Arsenic trioxide 

Benzene, dimethytXylene 

Zinc borate 

Asbestos 

Sodium bifluoride 

Lead subacetate 

Ammonium hydroxide 

POLYCHLORINATED BIPHENYLS (PCBs) 

Arodors 

2-Butanone peroxide 

Methyl ethyl ketone peroxide 

Naphthenlc add 

Ammonium bifluoride 

2,2'-Bioxirane 

1,2:3,4-Dlepoxybutane • 

Carbofuran 

N.N'-Dlethylhydrazlne 

Hydrazine, 1.2-diethyt2,3,7,8-Tetrachlorodibenzo-p-dloxin(TCDD) 

Ammonium thiocyanate 

Ammonium benzoate 

Hexachloropropene 

1-Propene, 1,1,2,3,3,3-hexachloro-
P.58 

Federal Register / Vol. 50, No, 65 / Thursday, April 4, 1985 / Rules and Regulations 13511 

APPENDIX A - SEQUENTIAL CAS REGISTRY 

NUMBER LIST OF CERCLA HAZARDOUS 

SUBSTANCES—Continued 

CASRN 

1918009 

1928387 

1928478 

1928616 

1929733 

2008460 

2032657 

2303164 

2312358 

2545597 

2763964 

2764729 

2921882 

2944674 

2971382 

3012655 

3164292 

3165933 

3251238 

3288582 

3486359 

3689245 

3813147 

4170303 

\ 

4549400 

5344821 

5893663 

5972736 

6009707 

6369966 

6369977 

6533739 

7005723 

7421934 

Hazardous Substance 

Dicamba 

2,4-D Esters 

2.4,5-T esters 

2,4-D Esters 

2,4-D Esters 

2,4,5-T amines 

Mercaptodimethur 

Diallate 

S-(2,3-Dichloroallyl) diisopropylthiocarbamate 

Propargite 

2,4,5-T esters 

5-(AminomethyD-3-isoxazolol 

3(2H)-lsoxazolone, 5-(aminomethyi)-

Diquat 

Chloipyrifos 

Ferric ammonium oxalate 

2,4-D Esters 

Ammonium citrate, dibasic 

Ammonium tartrate 

Benzenamine, 4-chloro-2-methyt-,hydrochloride 

4-Chloro*o-toluidine. hydrochloride 

Cupric nitrate 

0.0-Dlethyl S-methyl dithiophosphate 

Phosphorodithioic add, O.O-diethyl S-methylester 

Zinc carbonate 

Dlthiopyrophosphoric acid,tetraethyl ester 

Tetraethyldithiopyrophosphate 

2.4,5-T amines v 

2-Butenal 

Crotonaldehyde 

Ethenamine, N-methyl-N-nitrosoN-Nitrosomethylvinylamine 

1 *(o-Chlorophenyt)thiourea 

Thiourea, (2-chlorophenyl)-

Cupric oxalate 

Ammonium oxalate 

Ammonium oxalate 

2,4,5-T amines " 

2,4,5-T amines 

Carbonic add. dithallium (I) salt 

Thallium(l) carbonate 

4-Chlorophenyl phenyl ether 

Endrin aldehyde 

APPENDIX A - SEQUENTIAL CAS REGISTRY 

.NUMBER LIST OF CERCLA HAZARDOUS 

SUBSTANCES—Continued 

CASRN 

7428480 

7439921 

7439976 

7440020 

7440224 

7440235 

7440280 

7440360 

7440382 

7440417 

7440439 

7440473 

7440508 

7440666 

7446084 

7446142 

7446186 

7446277 

7447394 

7488564 

7558794 

7601549' 

7631892 

7631905 

7632000 

7645252 

7646857 

7647010 

7647189 

7664382 

7664393 

7664417 

7664939 

7681494 

7681529 

Hazardous Substance 

Lead stearate 

Lead 

Mercury 

Nickel 

Silver 

Sodium 

Thallium 

Antimony 

Arsenic 

Beryllium 

Beryllium dust 

Cadmium 

Chromium • 

Copper 

Zinc 

Selenium dioxide 

Selenium oxide 

Lead sulfate 

Sulfuric acid, thallium(l) salt 

Thallium(l) sulfate 

Lead phosphate 

Phosphoric acid, lead salt 

Cupric chloride 

Selenium disulfide 

Sulfur selenide 

Sodium phosphate, dibasic 

Sodium phosphate, tribasic 

Sodium arsenate 

Sodium bisulfite 

Sodium nitrite 

Lead arsenate 

Zinc chloride 

Hydrochloric acid 

Antimony pentachloride 

Phosphoric acid 

Hydrofluoric acid 

Hydrogen fluoride 

Ammonia 

Sulfuric acid 

Sodium fluoride 

Sodium hypochlorite 

APPENDIX A - SEQUENTIAL CAS REGISTRY 

NUMBER LIST OF CERCLA HAZARDOUS 

SUBSTANCES—Continued 

CASRN 

7697372 

7699458 

7705080 

7718549 

7719122 

7720787 

7722647 

7723140 

7733020 

7738945 

7758294 

7758943 

7758954 

7758987 

7761888 

7773060 

7775113 

7778394 

7778441 

7778509 

7778543 

7779864 

7779886 

7782414 

7782492 

7782505 

7782630 

7782823 

7782867 

7783008 

7783064 

7783188 

7783359 

7783462 

7783495 

7783508 

7783564 

Hazardous Substance 

Nitric acid 

Zinc bromide 

Ferric chloride 

Nickel chloride 

Phosphorus trichloride 

Ferrous sulfate 

Potassium permanganate 

Phosphorus 

Zinc sulfate 

Chromic acid 

Sodium phosphate, tribasic 

Ferrous chloride 

Lead chloride 

Cupric sulfate 

Silver nitrate 

Ammonium sulfamate 

Sodium chromate 

Arsenic acid 

Calcium arsenate 

Potassium bichromate 

Caldum hypochlorite 

Zinc hydrosulfite 

Zinc nitrate 

Fluorine 

Selenium 

Chlorine 

Ferrous sulfate 

Sodium selenite 

Mercurous nitrate 

Selenious acid 

Hydrogen sulfide 

Hydrosulfuric acid 

Sulfur hydride 

Ammonium -thiosulfate 

Mercuric sulfate 

Lead fluoride 

Zinc fluoride 

Fenic fluoride 

Antimony trifluoride 
P.59 

13512 Federal Register / Vol. 50, No. 65 / Thursday, April 4, 1985 / Rules and Regulations 

APPENDIX A - SEQUENTIAL CAS REGISTRY 

NUMBER LIST OF CERCLA HAZARDOUS 

SUBSTANCES—Continued 

CASRN 

7/84341 

7784409 

7784410 

7784465 

7785844 

7786347 

7786814 

7787475 

7787497 

7787555 

7788989 

7789006 

7789062 

7789095 

7789426 

7789437 

7769619 

7790945 

7791120 

7803512 

7803556 

6001352 

6001589 

8003198 

6003347 

8014957 

9004864 

10022705 

10025873 

10025919 

10026116 

10028225 

10031591 

10039324 

10043013 

10045893 

Hazardous Substance 

Arsenic trichloride 

Lead arsenate 

Potassium arsenate 

Sodium arsenite 

Sodium phosphate, tribasic 

Mevinphos 

Nickel sulfate 

Beryllium chloride 

Beryllium fluoride 

Beryllium nitrate 

Ammonium chromate 

Potassium chromate 

Strontium chromate 

Ammonium bichromate 

Cadmium bromide 

Cobaltous bromide 

Antimony trlbromideChlorosultonic add 

Thaillum(l) chloride 

Hydrogen phosphide 

Phosphine 

Ammonium vanadate 

Vanadic acid, ammonium salt 

Camphene, octachloroToxaphene 

Creosote 

Dichloropropane - Dichloropropene (mixture) 

Pyrethrins 

Sulfuric add 

Ferric dextran 

Iron dextran 

Sodium hypochlorite 

Phosphorus oxychloride 

Antimony trichloride 

Zirconium tetrachloride 

Ferric sulfate 

Sulfuric acid, thallium(l) salt 

Thallium(l) sulfate 

Sodium phosphate, dibasic 

Aluminum sulfate 

Ferrous ammonium sulfato . 

APPENDIX A - SEQUENTIAL CAS REGISTRY 

NUMBER LIST OF CERCLA HAZARDOUS 

SUBSTANCES—Continued 

CASRN 

10045940 

10049055 

10099748 

10101538 

10101630 

10101890 

10102064 

10102188 

10102439 

10102440 

10102451 

10102484 

10108642 

10124502 

10124568 

10140655 

10192300 

10196040 

10361894 

10380297 

10415756 

10421484 

10544726 

10588019 

11096825 

11097691 

11104282 

11115745 

11141165 

12002038 

12039520 

12054487 

Hazardous Substance 

Mercuric nitrate 

Chromous chloride 

Lead nitrate 

Chromic sulfate 

Lead iodide 

Sodium phosphate, tribasic 

Uranyl nitrate 

Sodium selenite 

Nitric oxide ' 

Nitrogen(ll) oxide 

Nitrogen dioxide 

Nitrogon(IV) oxide 

Thall|um(l) nitrate 

Lead arsenate 

Cadmium chloride 

Potassium arsenite 

Sodium phosphate, tribasic 

Sodium phosphate, dibasic 

Ammonium bisulfite 

Ammonium sulfite 

Sodium phosphate, tribasic 

Cupric sulfate ammoniated 

Mercurous nitrate 

Ferric nitrate 

Nitrogen dioxide 

Nitrogen(IV) oxide 

Sodium bichromate 

Aroclor 1260 

Polychlorinated Biphenyls (PCBs) 

Aroclor 1254 

Polychlorinated Biphenyls (PCBs) 

Aroclor 1221 

Polychlorinated Biphenyls (PCBs) 

Chromic acid 

Aroclor 1232 -

Polychlorinated Biphenyls (PCBs) 

Cupric acetoarsenite 

Thatllum(l) selenide 

Nickel hydroxide 

12672296 

12674112 

12771083 

13463393 

Aroclor 1248 

Polychlorinated Biphenyls (PCBs) 

Aroclor 1016 

Polychlorinated Biphenyls (PCBs) 

Sulfur monochtoride 

Nickel carbonyl 

Nickel tetracarbonyl 

APPENDIX A - SEQUENTIAL CAS REGISTRY 

NUMBER LIST OF CERCLA HAZARDOUS 

SUBSTANCES—Continued 

CASRN 

13560991 

13597994 

13746899 

13765190 

13814965 

13826830 

13952846 

14017415 

14216752 

14258492 

14307358 

14307438 

14639975 

14639986 

14644612 

15699180 

15739807 

15950660 

16721805 

16752775 

16871719 

16919190 

16923958 

18883664 

20816120 

20830813 

20859738 

23950585 

25154545 

25154558 

Hazardous Substance 

2,4.5*T salts 

Beryllium nitrate 

Zirconium nitrate 

Calcium chromate 

Chromic add, calcium salt 

Lead fluoborate 

Ammonium fluoborate 

sec*Butylsmino 

Cobaltous sulfamate 

Nickel nitrate 

Ammonium oxalate 

Lithium chromate 

Ammonium tartrate 

Zinc ammonium chloride 

Zinc ammonium chloride 

Zirconium sulfate 

Nickel ammonium sulfato 

Lead sulfate 

2,3,4-Trichlorophenol 

Sodium hydrosutfide 

Acetimidic add, N-[(methylcartMmoyl)oxy]rhio-

.methyl ester 

Methomyl 

Zinc silicofluoride 

Ammonium silicofluoride 

Zirconium potassium fluoride 

D-Glucopyranose, 2-deoxy-2-(3-methyl-3-nitrosouroido)-

Streptozotodn 

Osmium oxide 

Osmium tetroxide 

Daunomydn 

5.12-Naphthacenedione, (8S-cis)-6-acety<-10-[3-

amlno-2,3,6-trideoxy-atpha-L-lyxohexopyranosyl)oxy]-7,B,9.10-tetrahydro-6,8,11-

trihydroxy-1 -methoxyAtuminum phosphide 

3,5-Dichloro-N-(1,1 -dimethyl-2-

propynyl)benzamide 

Pronamide 

Dinitrobenzene (mixed) * 

Nitrophenol (mixed) 

25154545 

25154558 

25155300 

25167822 

25168154 

25168267 

25321146 

25321226 

25376458 

Dinitrobenzene (mixed) 

Nitrophenol (mixed) 

Sodium dodecyfbenzene sulfonate 

Trichlorophenol 

2,4,5-T esters 

2.4-D Esters 

Dinitrotoluene 

Dichlorobenzene (mixed) 

Diamlnotoluene 

Toluenediamine 

J 
P.60 

Federal Register / Vol. 50, No. 65 / Thursday, April 4, 1985 / Rules and Regulations 13513 

APPENDIX A - SEQUENTIAL CAS REGISTRY 

NUMBER LIST OF CERCLA HAZARDOUS 

SUBSTANCES—Continued 

CASRN 

25550587 

26264062 

26471625 

26628228 

26638197 

26952238 

27176870 

27323417 

27774136 

28300745 

30525894 

32534955 

33213659 

36478769 

37211055 

39196184 

42504461 

52628258 

52652592 

52740166 

53467111 

53469219 

55488874 

56189094 

61792072 

Hazardous Substance 

Dinitrophenol 

Calcium dodecylbenzene sulfonate 

Benzene, 2,4-diisocyanatomethylToluene diisocyanate 

Sodium azide 

Dichloropropane 

Dichloropropene 

Dodecylbenzenesulfonic acid 

Triethanolamine dodecylbenzene sulfonate 

Vanadyl sulfate 

Antimony potassium tartrate 

Paraformaldehyde 

2,4,5-TP add esters 

beta - Endosulfan 

Uranyl nitrate 

Nickel chloride 

3,3*Dimethyl-1-(methytthio)-2-butanone,0-

[(methylamino)carbonyl] oxime 

Thiofanox 

Isopropanolamine dodecylbenzene sulfonate 

Zinc ammonium chloride 

Lead stearate 

Calcium arsenite 

2,4-D Esters 

Aroclor 1242 

Polychlorinated Biphenyls (PCBs) 

Feme ammonium oxalate 

Lead stearate 

2,4,5-T esters 

§ 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), which 

substances are wastes prior to their 

initial release into the environment, 

have the reportable quantity of 100 

pounds, except for those unlisted 

hazardous wastes exhibiting the 

characteristic of 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. 

§ 302.6 Notification requirements. 

(a) Any person in charge of a vessel or 

an offshore or an onshore facility shall, 

as soon as he has knowledge of any 

release (other than a federally permitted 

release or application of a pesticide) of a 

hazardous substance from such vessel 

or facility in a quantity equal to or 

exceeding the reportable quantity 

determined by this part in any 24-hour 

period, immediately notify the National 

Response Center ((800) 424-8802; in 

Washington, D.C. (202) 426-2675). 

(b) Releases of mixtures and solutions 

are subject to these notification 

requirements only where a component 

hazardous substance of the mixture or 

solution is released in a quantity equal 

to or greater than its reportable 

quantity. 

(c) Notification of the release ofan 

RQ of solid particles of antimony, 

arsenic, beryllium, cadmium, chromium, 

copper, lead, nickel, selenium, silver, 

thallium, or zinc is not required if the 

mean diameter of the particles released 

is larger than 100 micrometers (0.004 

inches). 

(Approved by the Office of Management and 

Budget under the control number 2115-0137) 

§ 302.7 Penalties, 

(a) Any person 

(1) In charge of a vessel from which a 

hazardous substance is released, other 

than a federally permitted release, into 

or upon the navigable waters of the 

United States, adjoining shorelines, or 

into or upon the waters of the 

contiguous zone, 

(2) In charge of a vessel from which a 

hazardous substance is released, other 

than a federally permitted release, 

which may affect natural resources 

belonging to, appertaining to, or under 

the exclusive management authority of 

the United States (including resources 

under the Fishery Conservation and 

Management Act of 1976), and who is 

otherwise subject to the jurisdiction of 

the United States at the time of the 

release, or 

(3) In charge of a facility from which a 

hazardous substance is released, other 

than a federally permitted release, in a 

quantity equal to or greater than that 

reportable quantity determined under 

this part who fails to notify immediately 

the National Response Center as soon 

as he has knowledge of such release 

shall be subject to all of the sanctions, 

including criminal penalties, set forth in 

section 103 of the Act with respect to 

such failure to notify. 

(b) Notification received pursuant to 

this section or information obtained by 

the exploitation of such notification 

shall not be used against any such 

person in any criminal case, except a 

prosecution for perjury or for giving a 

false statement. 

(c) This section shall not apply to the 

application of a pesticide product 

registered under the Federal Insecticide, 

Fungicide, and Rodenticide Act or to the 

handling and storage of such a pesticide 

product by an agricultural producer. 

PART 117—[AMENDED] 

2. 40 CFR Part 117 is amended by 

revising § 117.3 to read as follows! 

§ 117.3 Determination of reportable 

quantities. 

Each substance jn Table 117.3 that is 

listed in Table 302.4; 40 CFR Part 302, is 

assigned the reportable quantity listed 

in Table 302.4 for that substance. 

[FR Doc. 85-4238 Filed 4-3-85; 8:45 am, 

BILUNQ CODE 6560-50-M 
P.61 

13514 Federal Register / Vol. 50, No. 65 / Thursday, April 4, 1985 / Proposed Rules 

ENVIRONMENTAL PROTECTION 

AGENCY 

40 CFR Part 302 

ISW H-FRL 2665(a)) 

Reportable Quantity Adjustments 

AGENCY: Environmental Protection 

Agency (EPA). 

ACTION: Proposed 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 of the 

release. Section 102(b) sets a reportable 

quantity of one pound for hazardous 

substances, except those substances for 

which reportable quantities have been 

established pursuant to section 311(b)(4) 

of the Clean Water Act ("CWA"). 

Section 102(a) authorizes the 

Environmental Protection Agency 

("EPA") to adjust reportable quantities 

for hazardous substances 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 elsewhere in today's 

Federal Register adjusts many of the 

reportable quantities established in 

section 102(b). EPA is proposing in this 

rulemaking to adjust additional 

reportable quantities. These RQ 

adjustments are intended to reduce the 

burdens of reporting on the regulated 

community, allow EPA to focus its 

resources on the most serious releases, 

and protect public health and welfare 

and the environment more effectively. ' 

The RQ adjustments proposed in this 

rulemaking will affect both CERCLA 

RQs and corresponding RQs in 

regulations promulgated pursuant to 

section 311(b)(4) of the CWA. 

Notification of a release of a 

hazardous substance in a quantity equal 

to or greater than its RQ is to be made 

by telephone to the National Response 

Center. The toll-free telephone number 

of the National Response Center is listed 

under the "Addresses". 

DATES: Comments must be received on 

or before June 3,1985. 

ADDRESSES: The toll-free telephone 

number of the National Response Center 

is (800) 424-8802; in the Washington, 

D.C. metropolitan area (202) 426-2675. 

Comments: Comments should be 

submitted in triplicate to: Emergency 

Response Division, Docket Clerk, 

Attention: Docket Number 102RQ, Room 

S-325, U.S. Environmental Protection 

Agency, 401 M Street, S.W, Washington, 

D.C. 20460. 

Docket: Copies of materials relevant 

to this rulemaking are contained in 

Room S-325 at the U.S. Environmental 

Protection Agency, 401 M Street, S.W, 

Washington, D.C. 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, Response 

Standards and Criteria Branch, 

Emergency Response Division (WH548B), U.S. Environmental Protection 

Agency, 401 M Street, SW, Washington, 

D.C. 20460, or the RCRA/Superfund 

Hotline (800) 424-9346, in Washington. 

D.C, (202) 382-3000. 

SUPPLEMENTARY INFORMATION: The 

contents of today's preamble are listed 

in the following outline: 

I. Introduction 

II. Reportable Quantity Adjustments 

A. Introduction 

B. Summary of the Methodology 

Underlying the Reportable Quantity 

Adjustments 

C. Substances for Which Adjusted RQs Are 

Being Proposed 

D. ICR Substances 

III. Reportable Quantity Adjustments Under 

Section 311 of the Clean Water Act 

IV. Summary of Supporting Analyses 

I. Introduction 

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 into the 

environment. The Act defines a set of 

"hazardous substances" by reference to 

other environmental statutes (section 

101(14)); this list currently contains 698 

substances. The Environmental 

Protection Agency ("EPA") may 

designate additional hazardous 

substances (section 102). 

The Act requires the person in charge 

of a vessel or facility to notify the 

National Response Center ("NRC") 

immediately when there is a release of a 

designated hazardous substance in an 

amount equal to or greater than the 

reportable quantity ("RQ") for that 

substance (sections 103 (a) and (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 

Federal Water Pollution Control Act 

("Clean Water Act" or "CWA"). Section 

102(a) authorizes EPA to adjust all of 

.these reportable quantities. 

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 rapid 

federal response to protect public health 

and welfare and the environment. Under 

the Act, the federal government may 

respond whenever there is a release or a 

substantial threat of a release into the 

environment of a hazardous substance 

or of other pollutants or contaminants 

which may present an imminent and 

substantial danger to public health or 

welfare (section 104). Response 

activities are to be taken, to the extent 

possible, in accordance with the 

National Contingency Plan (40 CFR Part 

300), which was originally developed 

under the CWA and which has been 

revised to reflect the responsibilities and 

authority created by CERCLA. EPA 

emphasizes that notification based on 

reportable quantities is merely a trigger 

for informing the government of a 

release so 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 will not necessarily pose a 

hazard to public health or welfare or the 

environment. Government personnel 

will assess each release on a case-bycase basis. 

Section 103(b) establishes 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 who, 

as soon as he 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. 

On May 25,1983, EPA proposed a rule 

(48 FR 23552) to clarify procedures for 
P.62 

Federal Register / Vol. 50, No. 65 / Thursday, April 4, 1985 / Proposed Rules 13515 

reporting releases and to adjust 

reportable quantities for 387 of the 698 

CERCLA hazardous substances. That 

Notice of Proposed Rulemaking (NPRM) 

also listed, for the first time, the 

"hazardous substances" designated by 

section 101(14) of CERCLA. The NPRM 

discussed in detail the CERCLA 

notification provisions (including the 

persons required to notify the NRC of a 

release, tha substances for which 

notification is required, the types of 

releases subject to the notification 

requirements, and the exemptions from 

these requirements), the methodology 

and criteria used to adjust the 

reportable quantity levels, and the RQ 

adjustments proposed under section 102 

of CERCLA and under section 311 of the 

CWA. Today's Federal Register contains 

a final rule that clarifies reporting 

procedures and promulgates most of the 

previously proposed RQ adjustments. 

The final rule contains adjusted RQs for 

319 of the 608 specific substances and 21 

of the 90 waste streams that are 

designated as hazardous substances 

under CERCLA. In preparing the final 

rule, EPA carefully considered all of the 

public comments submitted on the 

proposals made in the May 25,1983 

NPRM. 

This NPRM proposes RQ adjustments 

for 105 additional CERCLA hazardous 

substances (including 7 waste streams)-

for which the Agency has now 

completed its analysis. These proposed 

adjustments would amend Table 302.4 of 

40 CFR 302.4 and, consistent with 40 

CFR 117.3 as amended in today's final 

rule, would apply not only to CERCLA 

RQs, but also to RQs established under 

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

Section II of this preamble discusses the 

proposed RQ adjustments and the 

methodology used in making these 

adjustments. Section III addresses RQ 

adjustments under section 311 of the 

Clean Water Act. Section IV provides a 

summary of the analyses supporting this 

proposed rulemaking. 

It should be noted that other 

provisions of the Act may apply even 

where CERCLA does not require 

notification. Therefore, nothing in this 

rulemaking should be interpreted as 

reflecting Agency policy or theapplicable law with respect to other 

provisions of the Act. For example, a 

party responsible for a release is liable 

for the costs of cleaning up that release 

and for any natural resource damages, 

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 section 103 

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

governmental agencies from taking 

response actions under section 104, 

seeking reimbursement from responsible 

parties under section 107, or pursuing an 

enforcement action against responsible 

parties. Note also that this rule does not 

affect hazardous substance reporting 

requirements imposed by other 

regulations and statutes (except the 

CWA—see Section III below). 

Neither this rulemaking nor today's 

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 an 

Advance Notice of Proposed 

Rulemaking (ANPRM), also published 

on May 25,1983, invited public 

comment. EPA has carefully reviewed 

the comments received and is in the 

process of further developing its 

designation policy. The Agency's 

designation policy will be the subject of 

a separate rulemaking. 

II. Reportable Quantity Adjustments 

A. Introduction 

Section 102(b) establishes a 

reportable quantity of one pound for all 

hazardous substances other than those 

.with different RQs established under 

section 311 of the Clean Water Act; for 

these latter substances, section 102(b) 

adopts the CWA section 311 RQs. 

Congress enacted this provision in part 

to ensure that reporting of releases 

would begin immediately upon 

enactment of CERCLA, because 

reporting is essential for response. 

The RQs established by CERCLA 

were intended to be temporary pending 

EPA review and adjustment of those 

RQs. EPA committed to Congress in late 

1980 to revise those reportable 

quantities (126 Cong. Rec. H11792 

(December 3,1980)). This rulemaking 

proposes adjustments to the statutory 

RQs based upon specific scientific and 

technical criteria that relate to the 

possibility of harm from the release of a 

substance in a reportable quantity. 

These revised RQs, 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 re3ponding to reports of 

releases which are unlikely to pose such 

threats. 

This NPRM proposes adjusted RQs for 

98 of the 289 specific substances and 7 

of the 69 waste streams that are not 

assigned adjusted RQs by today's final 

rule. EPA is proposing to raise the RQs 

of 34 specific substances, lower the RQs 

of 31 specific substances, and leave the 

RQs of 33 specific substances at the 

levels originally established by CERCLA 

(or under CWA section 311). EPA is also 

proposing to raise the RQs of the 7 

waste streams. In addition, this NPRM 

proposes a 100-pound RQ for releases of 

non-designated substances which 

exhibit the RCRA characteristics of 

ignitability, corrosivity, or reactivity but 

which are not "wastes" (and thus 

CERCLA hazardous substances) until 

after they are released and are not 

cleaned up for repackaging, recycling, or 

reuse. Adjusted RQs for the remaining 

191 specific substances and 62 waste 

streams not addressed by this notice or 

today's final rule will be proposed, as 

appropriate, as soon as the RQ 

adjustment analysis for these 

substances (now ongoing) is complete. 

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. Tha different RQ 

levels do not reflect a determination that 

a release of a substance will be 

hazardous at the RQ level and not 

hazardous below that level. EPA has not 

attempted to make such a 

determination, because 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 reflect 

the Agency's judgment that the federal 

government should be notified of 

releases to which a federal response 

might be necessary. The reportable 

quantities do not represent any 

determination that releases of a 

particular size are actually harmful to 

public health or welfare cr the 

environment. 

Many other considerations besides 

the quantity released affect the 

government's decision concerning 

whether and how it should conduct a 

removal or remedial action pursuant to 

the National Contingency Plan (40 CFR 

Part 300) with respect to a particular 

release. The location of the release, its 

proximity to drinking water supplies or 

other valuable resources, the likelihood 

of exposure or injury to nearby 

populations, and other factors must be 
13516 Federal Register / Vol. 50, No. 65 / Thursday, April 4, 1985 / Proposed Rules 

assessed by the federal On-Scene 

Coordinator on a case-by-case basis. 

The reporting requirement enables the 

government to learn when such 

assessments should be made. 

Because CERCLA's RQ adjustment 

methodology differs from that used 

pursuant to section 311 of the Clean 

Water Act, some of the RQs being 

proposed today are not the same as 

those initially promulgated under the 

CWA. In the final rule published 

elsewhere in today's Federal Register, 

EPA has amended 40 CFR 117.3 to make 

RQs adjusted under CERCLA the 

applicable RQs for purposes of CWA 

section 311. Thus, when made final, 

today's proposed RQ adjustments will 

apply to both CERCLA and CWA RQs. 

A person in charge need not report a 

release into navigable waters twice 

under CERCLA and the CWA; 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.1 

Administrative feasibility and 

convenience are important 

considerations. The Agency's selected 

strategy for adjusting RQs begins with 

an evaluation of the 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 release or multiple 

releases 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). Each 

substance receives several tentative RQ 

values based on its particular 

properties.2 The lowest of all of the 

tentative RQs becomes the "primary 

criteria RQ" for that substance. 

For a more detailed discussion of the 

primary criteria, see the preamble of the 

May 25,1983 NPRM (48 FR 23562-23565), 

the preamble of today's final rule 

adjusting reportable quantities (Section 

V.D.I), and the Technical Background 

Document to Support Rulemaking 

Pursuant to CERCLA Section 102, 

available for inspection at Room S-325, 

U.S. Environmental Protection Agency, 

401 M Street, SW, Washington, D.C. 

20460. 

After the primary criteria RQs are 

assigned, substances are further 

evaluated for their susceptibility to 

certain extrinsic degradation processes. 

These extrinsic processes are 

biodegradation, hydrolysis, and 

photolysis, or "BHP." These processes of 

degradation tend to reduce the relative 

potential for harm to public health and 

welfare and the environment of many 

hazardous substance releases. If 

substances have primary criteria RQs 

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, their' 

susceptibility to degradation is 

considered only in relation to the 

primary criteria analysis (see footnote 

2), and they are not eligible for a onelevel RQ increase on the basis of BHP. 

On the other hand, if analysis indicates 

that an eligible 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 on the 

basis of BHP. The single RQ assigned to 

each substance on the basis of the 

primary criteria and BHP becomes the 

adjusted RQ for the substance. 

The portion of Table 302.4 (40 CFR 

302.4) printed in this Notice lists only 

those CERCLA hazardous substances 

for which adjusted RQs are being 

proposed in this rulemaking. The table 

shows both the statutory RQ currently 

in effect and the proposed adjusted RQ 

for each substance. 

For a more detailed discussion of the 

BHP criteria and their use in 

1

 As Senate Report No. 848,98th Congress, 

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

determining reportable quantities under this 

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

may consider any factors deemed relevant to 

administering the reporting requirements or the 

President's other responsibilities under this Act." 

2

 If available evidence shows that a substance 

hydrolyzes into a reaction product that is more 

hazardous than the original substance, the primary 

criteria are applied to the more hazardous reaction 

product rather than to the original substance to 

determine the tentative RQ values for the original 

substance. For example, substances known to 

generate hydrogen sulfide or phosphine upon 

hydrolysis are assigned primary criteria RQs on the 

basis of these degradation products. Application of 

the primary criteria to the reaction products rather 

than to the original substances occurred in four 

cases for the substances for which this NPRM 

proposes adjusted RQs. 

combination with the primary criteria, 

see the preamble of the May 25,1983 

NPRM (48 FR 23565), the preamble of 

today's final rule adjusting reportable 

quantities (Sections V.C.I, and V.D.2.), 

and the Technical Background 

Document to Support Rulemaking 

Pursuant to CERCLA section 102, 

available for inspection at Room S-325, 

U.S. Environmental Protection Agency, 

401 M Street, SW, Washington, D.C. 

20460. 

C. Substances for Which Adjusted RQs 

Are Being Proposed 

The 105 substances for which this 

NPRM proposes adjusted RQs have all 

been evaluated for potential chronic 

toxicity and/or potential 

carcinogenicity. This section describes 

the process by which EPA selected these 

105 substances for proposal in this 

NPRM. 

Prior to the May 25,1983 NPRM, EPA 

identified a number of CERCLA 

substances that potentially exhibited 

chronic toxicity or carcinogenicity (or 

both). 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. EPA identified the potentially 

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 and the First 

and Second Annual Reports on 

Carcinogens of the National Toxicology, 

Program, U.S. Department of Health and 

Human Services. 

For further information concerning the 

selection of substances for ECAO and 

. CAG review, see the Technical 

Background Document to Support 

Rulemaking Pursuant to CERCLA 

Section 102, available for inspection at 

Room S-325, U.S. Environmental 

Protection Agency, 401 M Street, SW, 

Washington, D.C. 20460. 

Because all of the potential 

carcinogens and many of the potential 

chronic toxicants (as identified at that 

time) were undergoing evaluation when 

the May 1983 NPRM was published, 

these substances retain their statutory 

RQ levels in the final rule published in 

today's Federal Register. Analysis is 

now completed, however, for the 

substances that were being evaluated 

for chronic toxicity in May 1983. In 

addition, CAG has performed a more 

detailed and more critical review of 

available data than the initial review 
Federal Register / Vol. 50, No. 65 / Thursday, April 4, 1985 / Proposed Rules 13517 

used to place the substances on the 

CAG list. The CAG assessment 

determined that there is no sound 

evidence of potential carcinogenic effect 

for a number of the substances on the 

list. 

The 105 substances in this NPRM 

consist of substances that have been 

evaluated for chronic toxicity and, 

where appropriate, assigned a chronic 

toxicity ranking, and substances for 

which CAG has determined that no 

sound evidence of potential 

carcinogenicity exists. Because 

assessments under all primary and BHP 

criteria have been completed for these 

105 substances, proposing RQ 

adjustments is appropriate at this time. 

The portion of Table 302.4 printed in this 

NPRM lists only the CERCLA 

substances for which adjusted RQs are 

being proposed in this rulemaking. The 

table indicates both the RQ level 

originally established by CERCLA and 

the proposed adjusted RQ for each 

substance. EPA is proposing to raise the 

RQs of 34 specific substances and 7 

waste streams, lower the RQs of 31 

specific substances, and leave the RQs 

of 33 specific substances at their original 

levels. 

D. ICR Substances 

As noted in the preamble to the final 

rule on RQs published elsewhere in 

today's Federal Register, the obligation 

to report releases into the environment 

of substances exhibiting the RCRA 

characteristics of ignitability, 

corrosivity, or reactivity ("ICR") (see 40 

CFR 261.21-261.23)3 has 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" includes all substances 

designated in § 302.4 of today's final 

rule as well as wastes exhibiting the ICR 

characteristics under RCRA. Therefore, 

the release of a non-designated 

substance exhibiting an ICR 

characteristic is the release of a 

hazardous substance only if the 

substance is a waste. If a nondesignated ICR substance is spilled and 

immediately cleaned up for repackaging, 

reprocessing, recycling, or reuse, it is not 

a waste and the spill need not be 

reported (see 45 FR 78540, Nov. 25,1980). 

However, if the substance is not cleaned 

up, or is cleaned up for eventual 

disposal, it is then a waste (and thus a 

3

 Substances exhibiting the characteristic of 

extraction procedure (EP) toxicity are not at issue 

here, because the chemicals at which the EP toxicity 

test is aimed are all specifically designated as 

hazardous under section 302.4 of today's final rule. 

hazardous substance) which has been 

released to the environment and must be 

reported if the release equals or exceeds 

the RQ. 

The Agency acknowledges that the 

May 25,1983 NPRM may not have been 

clear on this point. Accordingly, we are 

now proposing to create a separate RQ 

for releases of non-designated 

substances which are not wastes prior 

to their initial release but which exhibit 

an ICR characteristic. We propose to set 

an RQ of 100 pounds for such releases. 

This is the same RQ that has been 

established for ICR substances that are 

wastes prior, to their initial release, as 

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 release. We hereby solicit 

public comment on whether a different 

RQ is warranted. Of course, if the 

substance is recovered for purposes of 

recycling or use as a product, it never 

becomes a waste (or a hazardous 

substance) and thus is not subject to 

reporting requirements. 

EPA recognizes that transporters may 

not be aware that products they are 

carrying exhibit ICR characteristics. We 

acknowledge that in order for a criminal 

prosecution to be warranted, the person 

in charge must have known or 

reasonably should have known that the 

substance was a hazardous substance. 

Accordingly, EPA would enforce the 

reporting requirement for releases by 

transporters of non-designated 

substances exhibiting an ICR 

characteristic only if the substance was 

labeled as hazardous under DOT or 

State regulations or if other 

circumstances put the transporter on 

notice that a hazardous substance was 

released. If a product which is so 

labeled is spilled in excess of the , 

reportable quantity of 100 pounds (or 

such other RQ as may be finally 

promulgated) the transporter will be 

liable for failure to report, if it turns out 

that the waste exhibiting an ICR 

characteristic was released to the 

environment in excess of the RQ. 

As noted in the preamble to today's 

final rule, pending completion of final 

rulemaking on this proposal, notice 

given to the NRC pursuant to 49 CFR 

171.15, if required under that section, of 

the release of a non-designated 

substance that is not a waste prior to its 

initial release, will be deemed to satisfy 

the reporting requirements of section 

103(a) of CERCLA. Note that this jjolicy 

does not apply to the release of nondesignated substances which exhibit an 

ICR characteristic and which are wastes 

prior to their initial release. Such 

releases must be reported if they are 

equal to or in excess of the 100-pound 

RQ. See § 302.5(b) of today's final rule. 

III. Reportable Quantity Adjustments 

Under Section 311 of the Clean Water 

Act 

The final rule published elsewhere ih 

today's Federal Register amends 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, when made final, the RQ 

adjustments proposed in this rulemaking 

will apply to both CERCLA and CWA 

section 311 RQs. Reportable quantities 

under both statutes are set forth in 

Table 302.4. A single report of a release 

into navigable waters to the National 

Response Center by the person in charge 

will satisy the notification requirements 

of both statutes. (For a further 

discussion of the relationship between 

CERCLA RQs and CWA section 311 

RQs, see the May 25,1983 NPRM 

preamble at 48 FR 23569.) 

IV. Summary of Supporting Analyses 

Rulemaking protocol under Executive 

Order 12291 requires that proposed 

regulations be classified as major or 

non-major for purposes of review by the 

Office of Management and Budget. 

According to E.O. 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 S-325, U.S. Environmental 

Protection Agency, 401 M Street, SW, 

Washington, D.C. 20460, shows that 

today's proposed regulation is non- ' 

major, because adoption of the proposed 

rule will result in additional net cost 

savings (beyond those provided by 

today's final rule) of approximately $1.3 

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 
13518 Federal Register / Vol. 50, No. 65 / Thursday. April 4, 1985 / Proposed Hules 

on a substantial number of small 

entities." This NPRM proposes adjusted 

RQs for substances that have a 

substantially lower total production 

volume than the substances receiving 

adjusted RQs in today's final rule. The 

economic effects as estimated in EPA's 

analysis are proportional to production 

volume. Thus, the impact of the 

proposed rule on small entities will be 

substantially less than the impact of the 

final rule. The analysis qf the final rule 

demonstrated that the final rule will 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 in 

Room S-325, U.S. Environmental 

Protection Agency, 401 M Street, SW, 

Washington, D.C. 20460. Therefore, as 

with the final rule, EPA certifies that no 

Regulatory Flexibility Analysis is 

necessary for the proposed rule. 

The Information Impact Analysis 

performed for the final rule indicated • 

that the final rule would decrease the 

paperwork burden imposed on parties 

outside EPA by about 50,000 hours. A 

brief analysis indicates that the RQ 

adjustments proposed by this NPRM 

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 

proposed rule on the paperwork burden 

is not only minimal, but also a reduction, 

EPA has determined tiiat no further 

Information Impact Analysis need be 

performed. 

The Office of Management and Budget 

(OMB) has approved the information 

collection requirements contained in this 

proposed 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 2115-

0137. Submit comments on these 

requirements to the Office of 

Information and Regulatory Affairs, 

OMB, 726 Jackson Place, NW, 

Washington, D.C. 20503, marked 

"Attention: Desk Officer for EPA." The 

final rule will respond to any OMB or 

public comments on the information 

collection requirements. 

List of Subjects in 40 CFR Part 302 

Air pollution control. Chemicals, 

Hazardous materials, Hazardous 

materials transportation, Hazardous 

substances, Intergovernmental relations, 

Natural resources, Nuclear materials, 

Pesticides and pests, Radioactive 

materials, Reporting and recordkeeping 

requirements, Superfund, Waste 

treatment and disposal, Water pollution 

control. 

Dated: February 13,1985. 

Lee M. Thomas, 

Administrator. 

PART 302—{AMENDED] 

For the reasons set out in the 

preamble, it is proposed to amend 40 

CFR Part 302 as follows: 

1. The authority citation for Part 302 

reads as follows: 

Authority: Section 102 of the 

Comprehensive Environmental Response. 

Compensation, and Liability Act of 1980, 42 

U.S.C. 9802; sections 311 and 501(a) of the 

Federal Water Pollution Control Act, 33 

U.S.C. 1321 and 1361. 

2. In Part 302, Table 302.4 of § 302.4 is 

amended by revising certain hazardous 

substance entries to read as follows: 

TABLE 302.4 : 

-Hazardous Substance 

Benzene, hydroxy- , 

Benzo[-ghi]perylBne _ ; 

p-Benzoqutnorw „ _ _ _.. 

delta • BM" „.._ _ : 

! 

LIST OF HAZARDOUS SUBSTANCES AND REPORTABLE QUANTITIES 

CASRN 

83329 

208968 

l 

563688' 

7664417 

1341497 

.120127 

7440360 

408952 

608935 

99354 

206440 

191242 

,106514 

319868 

630104 

75150 

75150 

6S33739 

75003 

TO66304 

Regulatory Synonyms 

' ' 

Pentacntorbbenzone _ ~-

synvTrinitrobenzene „ „ . 

1 A-Cytiotiexadienedione _ 

Selenourea -

Thalfium(l) carbonate- — « ~ 

, 

RQ , 

1* 

1- I 

1* 

100 

5000 ; 

T 

1* 

1000

 : 

1* ' 

1' 

r 

v 

r 

t* 

10 

5000 

5000 

1* 

r 

1000 

Statutory 

Codet , 

2 

2 

4 

1 

• ': 

2 

2 

4.2.4 

4 

4 

2.4 

2 

4 

2 

• 

4 

1.4 

1,4 

4 

2 

1 

flCRA 

Waste . 

•lumber. 

U214 

i 

U188 i 

U183 

U234 

0J12O 

U197 

:P103 

TO22 

P022 

U215 

Proposed RQ 

Category 

e ' 

D 

I 

fl 

B 

B 

O 

O ': 

C 

C 

A 

B 

D 

A 

X 

A 

C 

B 

B 

B 

8 

C 

Pounds! Kg) 

100145.4) 

5000 (2270) 

100 (45.4) 

100 (45.4) 

100 (45.4) 

5000 (2270) 

5000,(2270) 

1000 (454) 

1000 (454) 

10 (4.S4) 

100 (45.4) 

5000(2270) 

1014:54) 

1 (0.454) 

10 (4.64) 

1000(454) 

100 (45.4) 

100 (45.4) 

100 (45.4) 

100 (45.4) 

1000 '(454) 
Federal Register / Vol. 50, No. 65 / Thursday, April 4, 1985 / Proposed Rules 13519 

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

Hazardous Substance CASRN Regulatory Synonyms 

Statutory 

RQ Code t 

RCRA 

Waste 

Number 

Proposed RQ 

Category 

Pounds(Kg) 

Chromic sulfate 

Chromous chloride... 

Copper t t 

Cresol (s) 

oPCresylic acid.. 

Cupric chloride 

Cupric sulfate 

Cupric tartrate 

1,4-Cyclohexadienedione 

Dichloropropane - Dichloropropene (mixture).. 

Dichloropropene(s) 

2,3-Dichloropropene (isomer) 

1,3-Dichloropropene 

Diethytamine 

Dimethylamine , 

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

Ethane, pentachloroEthion 

Ferric dextran 

Fluoranthene '. 

Fluorene , 

Fulminic acid, mercury(ll) salt , 

Hexachlorophene , 

Hydrogen sulfide 

Hydrosutfuric 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 

10101538 

10049055 

7440508 

1319773 

108394 

95487 

106445 

1319773 

108394 

95487 

106445 

7447394 

7758987 

815827 

106514 

8003198 

26952238 

78886 

542756 

109897 

124403 

298000 

76017 

563122 

9004664 

206440 

86737 

628864 

70304 

7783064 

7783064 

9004664 

78795 

'7439921 

7758954 

13814965 

7783462 

10101630 

10099748 

7428480 

1072351 

56189094 

52652592 

15739807 

7446142 

1314870 

592870 

10045940 

Cresylic acid 

moPCresol (s) 

moPp-Benzoquinone..... 

Propene, 1,3-dichloroMethanamine, N-methylMethyl parathion 

Pentachloroethane 

Iron dextran .: 

Benzo[j,k]fluorene 

Mercury fulminate 

2,2'-Methylenebis(3,4,6-trichlorophenol) 

Hydrosulfuric acid 

Sulfur hydride 

Hydrogen sulfide 

Sulfur hydride 

Ferric dextran 

1000 

1000 

r 

1000 

1000 

10 

10 

100 

1* 

5000 

5000 

5000 

1000 

1000 

100 

1* 

10 

r 

r 

r 

1* 

r 

100 

100 

1" 

1000 

r 

5000 

5000 

1000 

5000 

5000 

5000 

5000 

5000 

5000 

10 

1 

1 

2 

1.4 

1 

1 

1 

4 

1 

1 

1,2,4 

1 

1,4 

1.4 

4 

1 

4 

2,4 

2 

4 

4 

1,4 

1,4 

4 

1 

2 

1 

1 

1 

1 

1 

1 

U052 

U092 

P071 

U184 

U139 

U120 

P065 

U132 

U135 

U135 

1000 (454) 

1000 (454) 

5000 (2270) 

1000 (454) 

1000 (454) 

10 (4.54) 

10 (4.54) 

100 (45.4) 

10 (4.54) 

100 (45.4) 

100 (45.4) 

100 (45.4) 

100 (45.4) 

1000 (454) 

100 (45.4) 

10 (4.54) 

10 (4.54) 

5000 (2270) 

100 (45.4) 

5000 (2270) 

10.(4.54) 

100 (45.4) 

100 (45.4) 

100 (45.4) 

5000 (2270) 

100 (45.4) 

5000 (2270) 

100 (45.4) 

100 (45.4) 

100 (45.4) 

100 (45.4) 

100 (45.4) 

5000 (2270) 

100 (45.4) 

100 (45.4) 

100 (45.4) 

10 (4.54) 
13520 Federal Register J Vol. 50, No. 65 / Thursday. April 4, 1985 / Proposed Rules 

TABLE 302.4 - UST OF HAZARDOUS SUBSTANCES AND REPORTABLE QUANTTTJES-Continued 

Hazardous Substance 

Mercurous nitrate...-. _ „ 

Methanamine, N-methyl- _ 

Methane, chloro- - _ _ 

Methyl .parathion _ - „ „ 

Pentachloroethane.- „ - „ 

Phosphorodithioic acid, O.O-diethyl S-(ethytthlo)methyt 

ester. 

Plumbane, .tetraethyl- _ ; 

Propene, 1,3-dichloro- _ 

Pyrophosphoric add. tetraethyl ester _ _ _. 

'Selenious lacftl 

Selenium H.._ __ _ 

Selenium oxide _ — 

Sodium foifiuoride '. _ . 

Sodkim .nitrite.. _ — _ „ _ 

Tetraethyl "lead - _-

Thallium 11 - -

Thalllum(l) acetate..-

Thallium(l) chloride 

Thallium!!) nitrate. _ _ 

CASRN 

7783359 

592858 

10415755 

628864 

62384 

124403 

74873 

74873 

298000 

70304 

75047 

608935 

76017 

85018 

108952 

62384 

298022 

298022 

78002 

542756. 

129000; 

107493 

7783008 

7782482• 

7446084 

7446084 

630104 \ 

1333831 

7632000 

90102188 t 

7783084 

10031591 

7446186 

78002 

107493 

1314325 

7440280 

563688 

-6S33739 

7791120 

40102451 

Regulatory -Synonyms 

i 

Methyl chloride _ J 

Methane, chloro- - - _i 

Ethane, pentachloro-..- -. -. 

• 

Benzene, hydroxy- _ : 

Mercury, Iacetato-O)phenyl- _ 

Wiosphorodlthlok. raid, O.O-diethyl S-(ethylthio)nwthyl I 

ester. 

Tetraethyl dead _ 

i 

Hydrogen sulfide 

Hydrosulfuric acid 

Thalllum(lll) oxide '. : 

Acetic acid, thallium(l) salt _ 

RO 

10 

10 

10 

1* 

r 

1000 

r 

r 

100 

.1* 

1000 

v 

J' 

1* 

1000 

V 

r 

i* 

100 

5000 

i* 

i* 

* 100 ! 

r i 

r • 

1000 

1000 

1* 

5000 ' 

100 '< 

1000 

100 

1000 

100 

100 

r 

r 

i* 

V 

r 

r 

Statutory 

Code t 

1 

1 

1 

4 

4 

1,4 

2.4 

2.4 

1.4 

4 

1 

4 

4 

2 

1,2,4 

4 

4 

4 

1.4 

1,2.4 

2 

4 

1,4 

4 

2 

1,4 

i 

1.4 

4 

1 

1 

1 

1,4 

1.4 

1,4 

1,4 > 

4 

2 

4 

4 

4 

4 

RCRA 

Waste 

Number 

P065 

P092 

U092 

U045 

U045 

P071 . 

U132 

U183 . 

U184 . 

U1B8

 : 

P092 

P094 ' 

P094 ' 

P110 ! 

U084 

U196 ' 

P111 

U204 ' 

U204 

U204 

PTO3 

U135 

P115 

1*110 

P111 

P113 

U214 

U215 

U21« 

U217 

Proposed RQ 

Category 

A 

A 

A 

A 

B 

C 

B 

B 

B 

B 

B 

CA 

0 

C 

B 

C 

C 

A ' 

B 

O 

C 

A 

A 

B 

A 

A 

C 

fl 

B 

B 

B ' 

B 

A 

A 

B 

C 

B 

8 

e 

a 

Pounds(Kg) 

10(4.54) 

10 (4.54) 

10 (4.54) 

10.(4.54) 

100 (45.4) 

1000 (454) 

' 100 (45.4) 

100 (45.4) 

100(45.4) 

10044S.4) 

100 :(45.4) 

1000J4S4) 

10 (4.54) 

5000 (2270) 

1000 (454) 

100 (45.4) 

1000.(454) 

1000 (454) 

10 (4.S4) 

100 (45.4) 

5000(2270) 

1000 (454) 

10 14.54) 

10.(4.54) 

100 "(45.4) 

10(4.54) 

10 (4.54) 

1000(454) 

100(45.4) 

100 :(45.4) 

100 (45.4) 

100145.4) 

100 (45.4) 

10 t».S4) 

10 14.54) 

100 (45.4) 

" 1000 (454) 

100 (45.4) 

100 <45.4) 

100 (45.4) 

100 (45.4) 
Federal Register / Vol. 50, No. 65 / Thursday, April 4, 1985 / Proposed Rules 13521 

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

Hazardous Substance CASRN Regulatory Synonyms 

Statutory 

Code t 

RCRA 

Waste 

Number 

Proposed RO 

Category 

Pounds(Kg) 

Thallium(lll) oxide 

Thallium(l) selenide.. 

Thallium(l) sulfate 

Trichlorfon 

Trimethylamine 

sym-Trinitrobenzene.. 

Unlisted Hazardous Wastes 

Characteristic of EP Toxicity.. 

Selenium 

Uranyl acetate 

Uranyl nitrate 

Vanadium(V) oxide 

Vanadium pentoxide 

Vanadyl sulfate 

Zinc t t 

Zinc acetate 

Zinc ammonium chloride.. 

Zinc borate 

Zinc bromide 

Zinc carbonate 

Zinc chloride 

Zinc cyanide 

Zinc fluoride 

Zinc formate 

Zinc hydrosulfita 

Zinc nitrate 

Zinc phenolsulfonate 

Zinc phosphide 

Zinc silicofluoride 

Zinc sulfate 

1314325 

12039520 

10031591 

7446186 

52686 

75503 

99354 

N.A. 

Thallic oxide.. 

Sulfuric acid, thalltum(l) salt.. 

Benzene, 1,3,5-trinitro-.. 

541093 

10102064 

1314621 

1314621 

27774136 

7440666 

557346 

52628258 

1332076 

7699458 

3486359 

7646857 

557211 

7783495 

557415 

7779864 

7779886 

127822 

1314847 

16871719 

7733020 

Vanadium pentoxide... 

Vanadium(V) oxide 

F004.. 

The following spent non-halogenated solvents and 

the still bottoms from the recovery ot these 

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

Nitrobenzene 

The following spent non-halogenated solvents and 

the still bottoms from the recovery of these 

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

Carbon disulfide (d) Isobutanol (e) Pyridine 

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 ot leadbased initiating compounds 

K052 

r 

t* 

1000 

1000 

1000 

i* 

4 

4 

1,4 

1 

1 

4 

P113 

P114 

P115 

r 

5000 

5000 

1000 

1000 

1000 

1* 

1000 

5000 

1000 

5000 

1000 

5000 

10 

1000 

1000 

1000 

5000 

5000 

1000 

5000 

1000 

1' 

4 

1 

1 

1,4 

1,4 

1 

2 

1 

1 

1 

1 

1 

1 

1.4 

1 

1 

1 

1 

1 

1,4 

1 

1 

4 

P120 

P120 

P121 

P122 

A 

B 

B 

C 

C 

c 

c 

c 

c 

c 

c 

c 

c 

A 

c 

c 

c 

c 

O 

B 

D 

C 

C 

100 (45.4) 

1000 (454) 

100 (45,4) 

100 (45.4) 

100 (45.4) 

10 (454) 

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) 

1000 (454) 

100 (45.4) 

1000 (454) 

100 (45.4) 

100 (45.4) 

10 (4.54) 
P.69 

13522 Federal Register / Vol. 50, No. 65./ Thursday,* April 4, 1985 / Proposed Rules 

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

Hazardous Substance • 

Tank bottoms (leaded) from the petroleum refining 

industry 

K087 

Decanter tank tar sludge from coking operations 

CASRN Regulatory Synonyms 

' 

Statutory 

RO 

1* 

Code t 

4 

RCRA 

Waste 

Number 

K087 

Proposed RQ 

Category 

B 

Pounds(Kg) 

100 (45.4) 

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 the 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 RQ is a CERCLA statutory RQ 

[FR Doc. 85-4248 Filed 4-3-85; 8:45.am] 

BILLING CODE 6560-50-M 

J 
P.70 

J 

United States 

Environmental Protection 

Agency 

Washington DC 20460 

WH 548/5 

Official Business 

Penalty for Private Use $300