[Federal Register Volume 61, Number 89 (Tuesday, May 7, 1996)]
[Rules and Regulations]
[Pages 20473-20490]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 96-11209]
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ENVIRONMENTAL PROTECTION AGENCY
40 CFR Part 355
[Docket 300 PQ-R2; FRL-5468-5]
RIN 2050-AD50
Extremely Hazardous Substances
AGENCY: Environmental Protection Agency (EPA).
ACTION: Final rule.
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SUMMARY: Today, EPA is implementing one of its regulatory reform
commitments set forth in its June 1, 1995, Report to the President. EPA
is taking final action on two proposed rules that modify the extremely
hazardous substances (EHS) list and reportable quantities under section
302 of the Emergency Planning and Community Right-to-Know Act of 1986
[[Page 20474]]
(EPCRA), Title III of the Superfund Amendments and Reauthorization Act
of 1986. EPA is raising the statutory reportable quantities (RQs) for
202 EHSs. EPA is also removing four chemicals that do not meet the
listing criteria from the EHS list. Through these actions, the Agency
is reducing the burden of reporting for facilities presently required
to report certain releases unnecessarily. Protection of human health
and the environment is maintained while better focusing attention on
releases that may require a response by state and/or local authorities.
EFFECTIVE DATE: July 8, 1996.
ADDRESSES:
Docket: Copies of materials relevant to this rulemaking are
contained in the U.S. Environmental Protection Agency CERCLA Docket
Office, Crystal Gateway #1, 1st Floor, 1235 Jefferson Davis Highway,
Arlington, VA 22202 [Docket Number 300 PQ-R2]. The docket is available
for inspection between the hours of 9 a.m. and 4 p.m., Monday through
Friday, excluding Federal holidays. Appointments to review the docket
can be made by calling 703/603-9232. The public may copy a maximum of
266 pages from any regulatory docket at no cost. If the number of pages
copied exceeds 266, however, an administrative fee of $25 and a charge
of $0.15 per page for each page after page 266 will be incurred. The
docket will mail copies of materials to requestors who are outside of
the Washington, DC metropolitan area.
FOR FURTHER INFORMATION CONTACT: The RCRA/UST, Superfund, and EPCRA
Hotline at 800/424-9346 (in the Washington, DC metropolitan area,
contact 703/486-3323). The Telecommunications Device for the Deaf (TDD)
Hotline number is 800/553-7672 (in the Washington, DC metropolitan
area, contact 703/412-9810); or John Ferris, Chemical Engineer,
Chemical Emergency Preparedness and Prevention Office (5101), U.S.
Environmental Protection Agency, 401 M Street S.W., Washington, DC
20460, or at (202) 260-4043.
SUPPLEMENTARY INFORMATION:
Regulated entities. Regulated categories and entities include:
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Category Regulated entities
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Industry.............................. All facilities handling
chemicals on the extremely
hazardous substances list may
be subject to this regulation.
Federal Government.................... Executive Order 12856 requires
all federal agencies to comply
with sections 302 and 304 of
EPCRA.
State and Local Governments........... State emergency response
commissions and local emergency
planning committees receive the
information provided under
EPCRA section 304. State/local
government facilities handling
chemicals on the extremely
hazardous substances list may
be subject to this regulation.
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This table is not intended to be exhaustive, but rather provide a
guide for readers regarding entities likely to be regulated by this
action. To determine whether your facility is regulated by this action,
you should carefully examine the applicability criteria in section
355.40 of title 40 of the Code of Federal Regulations. If you have
questions regarding the applicability of this action to a particular
entity, consult the person listed in the preceding FOR FURTHER
INFORMATION CONTACT section.
Contents: The contents of today's preamble are listed in the
following outline:
I. Introduction
a. Statutory Authority
b. Background
c. Today's Rulemaking
II. RQ Adjustment Methodology
a. TPQ methodology
b. CERCLA RQ methodology
c. Proposed methodology
d. Alternative chosen
III. Response to Comments on the August 30, 1989 Proposal
a. Reportable Quantities and Threshold Planning Quantities
b. Sulfur Dioxide
c. Hydrogen Chloride/Hydrochloric Acid
d. Sulfur Trioxide
IV. Listing Corrections
V. Response to Comments on the October 12, 1994 Proposal
VI. Regulatory Analysis
a. Executive Order 12866
b. Regulatory Flexibility Act
c. Paperwork Reduction Act
d. Unfunded Mandates
I. Introduction
a. Statutory Authority
This regulation is issued under sections 302, 304 and 328 of the
Emergency Planning and Community Right-to-Know Act (EPCRA).
b. Background
On October 17, 1986, the President signed into law the Superfund
Amendments and Reauthorization Act of 1986 (SARA), Pub. L. 99-499
(1986). Title III of SARA, the Emergency Planning and Community Right-
to-Know Act of 1986 (EPCRA), established a program designed to
encourage state and local planning and preparedness for spills or
releases of extremely hazardous substances and to provide the public
and local governments with information concerning chemical releases and
the potential chemical risks in their communities.
Subtitle A of the Act establishes the framework for local emergency
planning. Under section 302, a facility which has present an extremely
hazardous substance (EHS) in excess of its threshold planning quantity
(TPQ) must notify its state emergency response commission (SERC) and
participate, as necessary, with the local emergency planning committee
(LEPC) in the local emergency planning process.
Section 302 directed EPA to publish the list of extremely hazardous
substances as an interim final rule within 30 days of the enactment of
EPCRA. Section 302(a)(2) required that the list be identical to the
list compiled by EPA in 1985 as part of EPA's Chemical Emergency
Preparedness Program. Under section 302(a)(4), EPA is authorized to
revise the list, but in undertaking any such revision, EPA must take
into account the ``toxicity, reactivity, volatility, dispersibility,
combustibility, or flammability of a substance.'' The term ``toxicity''
is defined to include ``any short- or long-term health effects which
may result from a short-term exposure to the substance.''
EPA published the list of 402 extremely hazardous substances on
November 17, 1986 (51 FR 41570). On the same day, EPA proposed the
deletion of 40 substances from the EHS list on the basis that their
original listing was in error. On April 22, 1987, 52 FR 13388, EPA
announced that it was deferring the proposed delisting of these
substances, pending an evaluation of the long-term effects from short-
term exposure to each of them. This deferral was in response to
comments from members of the public who argued that the proposed rule
was premature. On November 23, 1987, the District Court for the
District of Columbia in A.L. Laboratories, Inc. v. Environmental
Protection Agency issued an order requiring EPA to remove several
substances from the EHS list, reasoning that Congress did not intend to
include in the statutorily designated list substances listed due to
``clerical error.''
[[Page 20475]]
It is on the basis of this ruling that EPA proposed on October 12, 1994
(59 FR 51816), the removal of four chemicals.
Section 304 of EPCRA establishes requirements for immediate
reporting of certain releases of EHSs and hazardous substances (HSs)
listed under the Comprehensive Environmental Response, Compensation,
and Liability Act (CERCLA) to SERCs and LEPCs, similar to the release
reporting provisions of CERCLA section 103. Although similar, CERCLA
section 103 and EPCRA section 304 differ somewhat in purpose. CERCLA
provides generally for federal planning and coordination of entities
and for federal contingency plans. CERCLA section 103 requires federal
notification for any release of a hazardous substance in an amount
equal to or in excess of its RQ. EPCRA is designed to protect the
public in the event of dangerous chemical releases through the
establishment of local and state emergency response capability. EPCRA
section 304 requires, in addition to any federal notification,
notification to state and local authorities for any release of an EHS
in an amount equal to or in excess of its RQ. The potential hazards
posed by EHSs make state and local notification critical to effective
and timely emergency response. EHSs are acutely toxic chemicals which
cause both severe sort- and long-term health effects after a single,
brief exposure. In many cases, local and state authorities may be the
first and only responders to the release of an EHS.
Notifications are required if a release of an EHS or HS is equal to
or above the reportable quantity (RQ). Section 304(a) of EPCRA provides
that chemicals on the EHS list which do not have an RQ assigned to them
by regulation, will have a reportable quantity of 1 pound. Currently,
204 EHSs have the statutory one-pound RQ. On August 30, 1989 (54 FR
35988), EPA proposed to modify the statutory RQs for 232 EHSs using a
proposed modification of the CERCLA RQ methodology.
c. Today's Rulemaking
EPA is today taking final action on the two proposed rules
published in the Federal Register on August 30, 1989 and October 12,
1994. As discussed below, EPA is not yet taking final action on some
aspects of the proposed rules. EPA is adjusting the reportable
quantities of 204 extremely hazardous substances.\1\ This rule will
make the reportable quantities for these chemicals the same as their
threshold planning quantities. EPA is also finalizing the proposal to
remove phosphorus pentoxide, diethylcarbamazine citrate, fenitrothion
and tellurium from the EHS list.
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\1\ Although a total of 215 EHSs have one-pound statutory RQs,
this rule is adjusting the RQs of 204 of these EHSs. The remaining
11 EHSs with one-pound statutory RQs were designated CERCLA
hazardous substances in a February 9, 1995 final rule (60 FR 7824);
the Agency is currently developing a rulemaking to adjust the CERCLA
and EPCRA one-pound RQs for these 11 substances. The substances are
identified in 40 CFR Part 355 by the footnote ``d.''
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On August 30, 1989, EPA proposed the adjustment of the TPQ for
isophorone diisocyanate. Today's rule reflects the current TPQ for
isophorone diisocyanate. However, an adjusted TPQ and RQ will be
published in a future notice.
II. RQ Adjustment Methodologies
a. TPQ Methodology
EPA's methodology for establishing threshold planning quantities
for EHSs under EPCRA consists of initially determining the minimum
short term exposure concentration in air that would lead to serious
irreversible health effects in the general population when exposed to
the substance for relatively short duration. This is the so-called
``level of concern.'' (See the Threshold Planning Quantities Technical
Support Document, April 7, 1987.)
There are two ways to determine a ``level of concern.'' If it is
available for a chemical, EPA may use one-tenth of the Immediately
Dangerous to Life and Health (IDLH) level established by the National
Institute for Occupational Safety and Health (NIOSH). The IDLH is the
maximum concentration of a substance in air to which a healthy worker
can be exposed for 30 minutes and escape without suffering irreversible
health effects or impairing symptoms. If the IDLH value is not
available, as is the case for most of the EHSs, EPA determines an IDLH
equivalent value using available toxicity data with an adjustment
factor.
The level of concern is then divided by a factor ``V'' which
represents the extent to which the material can volatilize and become
airborne and dispersed. This approach is explained in the November 17,
1986 Federal Register notice (51 FR 41580). Dividing the level of
concern by ``V'' provides the index value for an EHS.
The final threshold planning quantity is then determined by a
relative ranking of the index values for all of the chemicals on the
EHS list. The index values and their corresponding threshold planning
quantities are found in the Threshold Planning Quantity Technical
Support Document. This approach is generally based on the quantity of
the chemical which when released will generate the level of concern at
a distance of 100 meters.
b. CERCLA RQ Methodology
The CERCLA RQ methodology uses a two step process to determine the
possibility of harm from the release of a hazardous substance. The
methodology begins with an evaluation of six intrinsic physical,
chemical, and toxicological properties associated with each hazardous
substance. These properties are known as the ``primary criteria.'' Each
substance is evaluated according to the applicable ``primary
criteria,'' and an RQ value is determined for each applicable
criterion. The ``primary criteria'' RQ for each hazardous substance is
the lowest value of all the applicable criteria. For example, if the
Agency evaluates hazardous substance A under the RQ adjustment
methodology, identifies both aquatic toxicity and mammalian toxicity
data on the substance, and sets a tentative RQ of 100 pounds on the
basis of aquatic toxicity and 1000 pounds on the basis of mammalian
toxicity, the 100 pound value will be the applicable ``primary
criteria'' RQ. Upon completion of the evaluation of the ``primary
criteria'' RQ, secondary adjustment criteria based on the natural
degradation processes of BHP (biodegradation, hydrolysis, and
photolysis) are assessed. If a hazardous substance, when released into
the environment, degrades (within 5 days) to a less hazardous form by
one or more of the BHP processes, its primary criteria RQ is raised one
level; if the substance degrades to a more hazardous form, its RQ may
be lowered.
c. Proposed Methodology
For approximately 60 of the 232 chemicals proposed for adjustment
on August 30, 1989, the CERCLA methodology adjusted RQs that were too
high for purposes of emergency notification under EPCRA. The reportable
quantities under the CERCLA methodology in these cases are higher than
the substances' EPCRA threshold planning quantity. To rectify this
discrepancy, the August 30, 1989, notice proposed to modify the CERCLA
RQ methodology by integrating the TPQ into the CERCLA RQ methodology.
As proposed, after the two-step CERCLA RQ process had been applied to
the chemicals, an additional step of comparing the tentative RQ to the
substances' TPQs was applied. If the TPQ was lower than the tentative
RQ, the RQ would be adjusted to the TPQ level or lower.
[[Page 20476]]
d. Alternative Chosen
In the proposed rule of August 30, 1989, the Agency was seeking
comment on the various alternatives that could be used to set the
reportable quantities. At the time the RQ adjustments were proposed,
the Agency anticipated that the EHSs would be designated CERCLA
hazardous substances as proposed on January 23, 1989 (54 FR 3388). The
Agency, however is not finalizing at this time the proposal to
designate these chemicals as CERCLA hazardous substances. Today's rule
does not affect any CERCLA hazardous substances. Therefore, the Agency
is not utilizing or modifying the CERCLA RQ methodology at this time.
Instead, the Agency has decided to adjust the 1 pound EHS RQs to the
same level as their respective TPQs.2
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\2\ The release of EHSs which are already CERCLA hazardous
substances is reportable at the RQ levels applicable under CERCLA.
(EPCRA section 304 (a)(1)).
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The Agency believes that it is appropriate to rely on the TPQ
methodology rather than the CERCLA methodology to adjust EHS RQs for
several reasons.
First, reporting of EHS releases is required because EHSs are
acutely toxic and will potentially pose an immediate hazard upon
release. Thus, EHS RQs should be adjusted based on substances'
potential for immediate effects. The TPQ methodology, designed
specifically for the EHSs, is based on such effects, utilizing a
``level of concern'' based upon short-term exposure concentrations that
could lead to serious irreversible health effects.
Second, use of the CERCLA secondary criteria of BHP is
inappropriate for adjusting EHS RQs. The BHP analysis is used to
increase a substance's RQ by taking into account its natural chemical
degradation. EHSs can cause severe health effects after only a single,
brief exposure which may occur prior to any chemical degradation. The
BHP analysis and higher RQs based on chemical degradation are not
suitable in this context.
Third, as with RQs, the Agency adjusts TPQs based on the
possibility of harm from the release of a specific substance. In the
Threshold Planning Quantity Technical Support Document to the proposed
rule of November 17, 1986 (51 FR 41570) to adjust TPQs, EPA stated that
the TPQ should represent a quantity that could cause serious health
consequences if an accident were to occur with that quantity.
Consistent with this statement, EPA modelled a variety of release
scenarios to generate the relative ranking of each EHS and to determine
the six TPQ quantities (1, 10, 100, 500, 1,000, and 10,000 pounds).
Since the TPQ methodology is based on the possibility of harm from
release, the Agency believes that it is appropriate to rely on it to
adjust RQs as well.
Finally, like CERCLA RQs, EPCRA RQs do not reflect a determination
that a release of a substance will always be hazardous at the RQ level
and never 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. For this reason, EPA encourages
SERCs and LEPCs to consider the RQ during their emergency planning
process involving facilities with extremely hazardous substances.
III. Response to Comments on August 30, 1989 Proposal
Many of the comments received in response to the Federal Register
notice of August 30, 1989, are not addressed today because they
concerned the designation of EHSs as CERCLA hazardous substances and
the adjustment of RQs for those substances under CERCLA. As stated
above, the Agency is not taking action on modifying the CERCLA RQ
methodology or listing EHSs as CERCLA hazardous substances at this
time. For a complete list of comments and the Agency's responses, see
the responses to comments document in the Docket of this Federal
Register notice.
a. Threshold Planning Quantity Methodology
The Agency received several comments on its proposed use of the TPQ
methodology to adjust RQs. These commenters believed that the use of
the TPQ methodology was inappropriate because the RQ and the TPQ
address different regulatory requirements.
EPA believes that the TPQ methodology is appropriate for these
chemicals. Although the RQs and TPQs trigger two distinct notification
requirements, both quantities are adjusted based on the possibility of
harm from the release of a specific substance. Thus, even though TPQ
(EPCRA Sec. 302) notification is not triggered by an actual release,
the TPQ is based upon the potential harm from an actual release. In
addition, the particular concern with EHSs is that they will
potentially pose an immediate hazard upon release. Notification
requirements should be based on the potential for these immediate
effects, and the TPQ methodology (developed specifically for the EHS
list) is in fact based upon the potential for immediate effects. For
these reasons, the Agency believes that the use of the TPQ methodology
is appropriate to set RQs for extremely hazardous substances. However,
because these chemicals are not being added to the CERCLA hazardous
substance list, modification of the CERCLA RQ methodology is not
warranted at this time.
b. Sulfur Dioxide
The adjusted RQ for sulfur dioxide was proposed at 100-pounds.
Several commenters from the petroleum industry commented that the 100-
pound RQ is too low and would require needless and excessive reporting
for the petroleum sector. In the petroleum sector, sulfur dioxide is a
combustion product created when hydrogen sulfide from crude oil and
natural gas is flared. The commenters referenced the Federal Clean Air
Act New Source Performance Standards that they state allow coal fired
power plants to emit 200,000 pounds per day of sulfur dioxide.
The proposed RQ for sulfur dioxide was set at 100-pounds based on
the proposed modified CERCLA RQ methodology. In the final rule of April
22, 1987 (52 FR 13378), the TPQ for sulfur dioxide was adjusted to 500-
pounds. Because there is no 500-pound CERCLA RQ level, the sulfur
dioxide RQ was proposed at 100-pounds. As stated earlier in this rule,
EPA is not modifying the CERCLA RQ methodology at this time, but is
adjusting RQs to the TPQ level. The final EPCRA RQ for sulfur dioxide
is 500-pounds.
EPA does not agree that the existence of a 200,000 pounds per day
standard for one sector means that the EPCRA RQ should be set at a
higher RQ level. Sulfur dioxide is used in many industries other than
the petroleum sector, for example, sulfuric acid production, water
purification and the pulp and paper industry. While flares and stacks
are designed to lift the sulfur dioxide into the atmosphere, ground
level releases of sulfur dioxide, including releases from containers
storing sulfur dioxide may be more hazardous to the community. Since
EPA sets one RQ to incorporate all probable release scenarios, EPA
believes that the 500 pound RQ based on the substance's IDLH value
provides an appropriate level.
EPA notes that the release reporting requirements of EPCRA section
304 work in conjunction with the federally permitted release exemption
under CERCLA section 101(10) and the continuous release reporting
requirements under CERCLA section 103. Releases that are federally
permitted and those that are continuous
[[Page 20477]]
have reduced reporting requirements under EPCRA section 304.
c. Hydrogen Chloride
Several commenters correctly pointed out that the phrase ``gas
only'' was omitted from the hydrogen chloride listing in the tables
proposing to revise Appendices A and B to 40 CFR part 355. In today's
rule, this omission is corrected.
In the final rule published in the Federal Register December 27,
1989 (54 FR 53057), EPA raised the reportable quantity for Hydrogen
chloride (gas only) to 5,000 pounds. This is the same as the reportable
quantity for hydrogen chloride (a synonym of hydrochloric acid) under
CERCLA section 103.
d. Sulfur Trioxide
Several commenters believed that a reportable quantity for sulfur
trioxide above 100 pounds is warranted. EPA, however, disagrees. The
100 pound TPQ for sulfur Trioxide is based upon acute toxicity. EPA
agrees that some releases of sulfur trioxide above 100-pounds may not
be hazardous based upon the conditions of the release (e.g. from a
flare or stack). However, 100-pound releases of sulfur trioxide at
ground level (e.g. releases during sulfuric acid and explosive
manufacturing) may pose a hazard to the community. An RQ incorporates
all probable release scenarios so that persons off-site can determine
the level of response necessary. Therefore, the Agency believes that
the 100-pound RQ for sulfur trioxide based upon its acute toxicity is
appropriate.
IV. Listing Corrections
EPA is making final a rule that was originally proposed on October
30, 1994, to remove phosphorus pentoxide, diethylcarbamizine citrate,
finitrothion and tellurium from the extremely hazardous substances
list.3
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\3\ On October 30, 1994, EPA proposed the adjustment of the TPQ
for isophorone diisocyanate. The final rule on this adjustment will
be published in a future notice.
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Substances are listed as EHSs based on toxicity criteria.
Substances are screened using acute animal toxicity data for the most
sensitive mammalian species and are placed on the list if they meet one
of the following criteria:
LC50 4 0.5 mg/L
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\4\ ``LC50'' refers to that concentration of a substance in
the air that is expected to cause the death of 50 percent of a
defined experimental population.
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Dermal LD50 5 50 mg/kg
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\5\ ``LD50'' refers to that dose of a substance expected to
cause the death of 50 percent of a defined experimental population.
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Oral LD50 25 mg/kg
If LC50 or LD50 data are not available, then LCLO or
LDLO data are used. Substances that meet one of these criteria
have the potential for causing harm if accidently released and are,
therefore, designated as EHSs.
EPA listed phosphorus pentoxide based on information presented in
an abstract. This source reported an LC50 of 0.061 mg/L for guinea
pigs and an LC50 of 0.271 mg/L for mice exposed for 1 hour to
smoke generated from burning red phosphorus. A significant limitation
of this study is that the toxic effects cannot be directly related to
phosphorus pentoxide. Therefore, these data are insufficient for
listing phosphorus pentoxide as an EHS. In addition, the Elemental
Phosphorus Ad Hoc Solid Waste Group submitted a study that indicated
that the LC50 for rats exposed to phosphorus pentoxide for 4 hours
is greater than 0.99 mg/L, well above the .5 mg/L listing criteria.
Based on the insufficient information in the original study and the
information of the more recent study, EPA has decided to remove
phosphorus pentoxide from the EHS list.
EPA listed diethylcarbamazine citrate based on information
presented in a Russian data compilation that listed an LC50 for
rats equal to 0.309 mg/L for a 4-hour exposure. Review of this
information indicated that the toxicity values presented were
unverifiable because the study details were not available. In addition,
SmithKline Beecham submitted a study that reported no deaths of rats
from exposure to either 1.63 mg/L or 2.38 mg/L for 1 hour. Based on the
poor quality of the original study and the additional information
received, EPA has decided to remove diethylcarbamazine citrate from the
EHS list.
EPA listed fenitrothion based on a study that reported an LC50
equal to 0.378 mg/L for a 4-hour exposure. EPA's review of this study
concluded that a toxic impurity had resulted in an erroneously low
value for the LC50. In addition, a surfactant was present that
altered the permeability of the skin and cell membranes of the test
animals, making them more susceptible to fenitrothion's toxic effect.
Information submitted by Sumitomo Chemical America, Inc., reported an
LC50 greater than 2.210 mg/L. Based on the Agency's review and the
additional information, fenitrothion is being deleted from the EHS
list.
EPA listed tellurium metal based on a study that reported an oral
LD50 of 20 mg/kg. Review of this study indicted that sodium
tellurate, which is listed as an EHS, was used in the study rather than
tellurium metal. The Selenium Tellurium Development Association also
submitted a study that reported an LD50 greater than 5000 mg/kg
for tellurium metal. Based on this information, EPA is deleting
tellurium from the list of EHSs.
V. Response to Comments on October 12, 1994, Proposal
EPA received one comment from the Clean Water Fund of North
Carolina objecting to the removal of phosphorus pentoxide from the EHS
list. The Clean Water Fund questions the validity of an unpublished
1987 toxicity study showing no toxic effects in exposed animals, at
levels up to .99 mg/L of phosphorus pentoxide aerosol. That study
however, did not determine the level of the chemical in question in the
chamber atmosphere. The analytical method determined only total
phosphorus, which was then converted to an equivalent concentration of
phosphorus pentoxide in air. The Clean Water Fund argues, therefore,
that the pentoxide should remain on the list because the 1980 and 1982
combustion experiments established that the pentoxide was a major
component of the smoke and ``because the analytical techniques employed
by the 1980 study may have actually synthesized the pentoxide from
other (possibly less dangerous) phosphorus compounds actually present
in the test chamber.'' The Agency assumes Clean Water Fund believes
that because the pentoxide could have been synthesized from less toxic
compounds, the pentoxide presented the toxic character of the test
chamber gas.
EPA disagrees. The 1980 and 1982 studies show that, in burning the
phosphorus, there is a potential for the production of several oxides
of phosphorus. Regardless of how pentoxide was formed (as noted by the
Clean Water Fund) or whether the various oxide compounds are more or
less toxic, the fact still remains that the studies did not distinguish
which of the various oxides caused the high toxicity of the smoke.
While the 1987 study showed no toxicity of phosphorus pentoxide, it
also is not conclusive because it did not indicate a direct measurement
of phosphorus pentoxide in the chamber and the pentoxide could have
hydrolyzed to possibly less toxic constituents. On balance, none of the
studies presented show that phosphorus pentoxide meets the toxicity
criteria. Accordingly, EPA is removing the chemical from the EHS list.
[[Page 20478]]
VI. Regulatory Analyses
a. Executive Order 12866
Under Executive Order 12866, (58 FR 51,735) of October 4, 1993, the
Agency must determine whether the regulatory action is ``significant''
and therefore subject to review by the Office of Management and Budget
(OMB) and the requirements of the Executive Order. The Order defines
``significant regulatory action'' as one that is likely to result in a
rule that may:
(1) Have an annual effect on the economy of $100 million or more or
adversely affect in a material way the economy, a sector of the
economy, productivity, competition, jobs, the environment, public
health or safety, or State, local or tribal governments or communities;
(2) Create a serious inconsistency or otherwise interfere with an
action taken or planned by another agency;
(3) Materially alter the budgetary impact of entitlements, grants,
user fees, or loan programs or the rights and obligations of recipients
thereof; or
(4) Raise novel legal or policy issues arising out of legal
mandates, the President's priorities, or the principles set forth in
the Executive Order.
It has been determined that this rule is not a ``significant
regulatory action'' under the terms of Executive Order 12866 and is
therefore not subject to OMB review.
b. Regulatory Flexibility Analysis
Pursuant to the Regulatory Flexibility Act, 5 U.S.C. 601 et seq.,
whenever an agency is required to publish a notice of rulemaking for
any proposed or final rule, it must prepare and make available for
public comment a regulatory flexibility analysis that describes the
effect of the rule on small entities (i.e., small businesses, small
organizations, and small governmental jurisdictions). This analysis is
unnecessary, however, if the agency's administrator certifies that the
rule will not have a significant economic effect on a substantial
number of small entities.
EPA has examined this rule's potential effects on small entities as
required by the Regulatory Flexibility Act. It has determined that
today's final rule will not have a significant economic effect on a
substantial number of small entities. The overall economic effect of
this regulation has been determined to equate to 6,249 hours of burden
reduction (with no added burden) at a total cost saving of $355,628 per
year to all regulated entities. Therefore, this regulation will have a
cost savings, and not have a significant impact on small businesses.
c. Paperwork Reduction Act
The information collection requirements contained in this final
rule have been approved by OMB under the provisions of the Paperwork
Reduction Act, 44 U.S.C. 3501 et seq., and have been assigned OMB
control number 2050-0092 (EPA Information Collection Request No.
1395.2). Copies of the information collection requests may be obtained
from Sandy Farmer, OPPE Regulatory Information Division, U.S.
Environmental Protection Agency (2136), 401 M Street, SW., Washington,
DC 20460 or by calling (202) 260-2740.
As indicated in the Section I Introduction, the mandatory reporting
requirements under EPCRA section 304 serve as a trigger for informing
state and local governments of a release, so that state and local
personnel can evaluate the need for any necessary action in a timely
fashion. EPCRA section 304 also requires the submittal of a written
follow-up notice to the same state and local entities.
The public reporting burden for the collection of information
pursuant to EPCRA section 304 is estimated to take, on average, 5 hours
per response. This estimate includes the time required to make the call
and to develop the written follow-up notice.
Because the RQs for almost all of the substances included in
today's rule are to be raised, the net reporting and recordkeeping
burden associated with reporting releases of these substances under
EPCRA section 304 is expected to decrease. As demonstrated in an
economic impact analysis (EIA), the Agency estimates that the total
burden reduction for notification to SERCs and LEPCs, and notification
to 911 services in transportation-related incidents, and the completion
of follow up reports will equate to 6,249 hours at a total cost savings
of $355,628 per year.
Send comments on the ICR to the Director, OPPE Regulatory
Information Division, U.S. Environmental Protection Agency (2136), 401
M Street, SW., Washington, DC 20460; and to the Office of Information
and Regulatory Affairs, Office of Management and Budget, 725 17th
Street, NW., Washington, DC 20503, marked ``Attention: Desk Officer for
EPA.'' Include ICR number 1395.2 in any correspondence.
d. Unfunded Mandates Reform Act
Title II of the Unfunded Mandates Reform Act of 1995 (UMRA), Public
Law 104-4, establishes requirements for Federal agencies to assess the
effects of their regulatory actions on State, local, and tribal
governments and the private sector. Under section 202 of the UMRA, EPA
generally must prepare a written statement, including a cost-benefit
analysis, for proposed and final rules with ``Federal mandates'' that
may result in expenditures to State, local, and tribal governments, in
the aggregate, or to the private sector, of $100 million or more in any
one year. Before promulgating an EPA rule for which a written statement
is needed, section 205 of the UMRA generally requires EPA to identify
and consider a reasonable number of regulatory alternatives and adopt
the least costly, most cost-effective or least burdensome alternative
that achieves the objectives of the rule. The provisions of section 205
do not apply when they are inconsistent with applicable law. Moreover,
section 205 allows EPA to adopt an alternative other than the least
costly, most cost-effective or least burdensome alternative if the
Administrator publishes with the final rule an explanation why that
alternative was not adopted. Before EPA establishes any regulatory
requirements that may significantly or uniquely affect small
governments, including tribal governments, it must have developed under
section 203 of the UMRA a small government agency plan. The plan must
provide for notifying potentially affected small governments, enabling
officials of affected small governments to have meaningful and timely
input in the development of EPA regulatory proposals with significant
Federal intergovernmental mandates, and informing, educating, and
advising small governments on compliance with the regulatory
requirements.
EPA has determined that this rule does not contain a Federal
mandate that may result in expenditures of $100 million or more for
State, local, and tribal governments, in the aggregate, or the private
sector in any one year. Because the RQs for almost all of the
substances included in today's rule are to be raised, the net reporting
and recordkeeping burden associated with reporting releases of these
substances under EPCRA section 304 is expected to decrease. As
demonstrated in an economic impact analysis (EIA), the Agency estimates
that the total burden reduction for notification to SERCs and LEPCs,
and notification to 911 services in transportation-related incidents,
and the completion of follow up reports will equate to 6,249 hours at a
total cost savings of $355,628 per year. Thus, today's rule is not
subject to the requirements of sections 202 and 205 of the UMRA.
EPA has determined that this rule contains no regulatory
requirements that might significantly or uniquely affect
[[Page 20479]]
small governments. Because the RQs for almost all of the substances
included in today's rule are to be raised, the net reporting and
recordkeeping burden associated with reporting releases of these
substances under EPCRA section 304 is expected to decrease. Small
governments will no longer receive notifications and written follow-up
reports from facilities that have releases of extremely hazardous
substances less that the substances' TPQ.
List of Subjects in 40 CFR Part 355
Air pollution control, Chemical accident prevention, Chemical
emergency preparedness, Chemicals, Community emergency response plan,
Community right-to-know, Contingency planning, Disaster assistance,
Emergency Planning and Community Right-to-Know Act, Extremely hazardous
substances, Hazardous substances, Intergovernmental relations, Natural
resources, Penalties, Reportable quantity, Reporting and recordkeeping
requirements, Superfund Amendments and Reauthorization Act, Threshold
planning quantity, Water pollution control, Water supply.
Dated: April 29, 1996.
Carol M. Browner,
Administrator.
For the reasons set out in the preamble, title 40, Chapter I of the
Code of Federal Regulations is amended as follows:
PART 355--EMERGENCY PLANNING AND NOTIFICATION
1. The authority citation for part 355 continues to read as
follows:
Authority: 42 U.S.C. 11002, 11004, and 11048.
2. Appendices A and B in Part 355 are revised to read as follows:
Appendix A to Part 355--The List of Extremely Hazardous Substances and Their Threshold Planning Quantities
[Alphabetical Order]
----------------------------------------------------------------------------------------------------------------
Reportable quantity * Threshold planning quantity
CAS No. Chemical name Notes (pounds) (pounds)
----------------------------------------------------------------------------------------------------------------
75-86-5..... Acetone Cyanohydrin........ ................ 10 1,000
1752-30-3... Acetone Thiosemicarbazide.. ................ 1,000 1,000/10,000
107-02-8.... Acrolein................... ................ 1 500
79-06-1..... Acrylamide................. l 5,000 1,000/10,000
107-13-1.... Acrylonitrile.............. l 100 10,000
814-68-6.... Acrylyl Chloride........... h 100 100
111-69-3.... Adiponitrile............... l 1,000 1,000
116-06-3.... Aldicarb................... c 1 100/10,000
309-00-2.... Aldrin..................... ................ 1 500/10,000
107-18-6.... Allyl Alcohol.............. ................ 100 1,000
107-11-9.... Allylamine................. ................ 500 500
20859-73-8.. Aluminum Phosphide......... b 100 500
54-62-6..... Aminopterin................ ................ 500 500/10,000
78-53-5..... Amiton..................... ................ 500 500
3734-97-2... Amiton Oxalate............. ................ 100 100/10,000
7664-41-7... Ammonia.................... l 100 500
300-62-9.... Amphetamine................ ................ 1,000 1,000
62-53-3..... Aniline.................... l 5,000 1,000
88-05-1..... Aniline, 2,4,6-Trimethyl-.. ................ 500 500
7783-70-2... Antimony Pentafluoride..... ................ 500 500
1397-94-0... Antimycin A................ c 1,000 1,000/10,000
86-88-4..... ANTU....................... ................ 100 500/10,000
1303-28-2... Arsenic Pentoxide.......... ................ 1 100/10,000
1327-53-3... Arsenous Oxide............. h 1 100/10,000
7784-34-1... Arsenous Trichloride....... ................ 1 500
7784-42-1... Arsine..................... ................ 100 100
2642-71-9... Azinphos-Ethyl............. ................ 100 100/10,000
86-50-0..... Azinphos-Methyl............ ................ 1 10/10,000
98-87-3..... Benzal Chloride............ ................ 5,000 500
98-16-8..... Benzenamine, 3- ................ 500 500
(Trifluoromethyl)-.
100-14-1.... Benzene, 1-(Chloromethyl)-4- ................ 500 500/10,000
Nitro-.
98-05-5..... Benzenearsonic Acid........ ................ 10 10/10,000
3615-21-2... Benzimidazole, 4,5-Dichloro- g 500 500/10,000
2-(Trifluoromethyl)-.
98-07-7..... Benzotrichloride........... ................ 10 100
100-44-7.... Benzyl Chloride............ ................ 100 500
140-29-4.... Benzyl Cyanide............. h 500 500
15271-41-7.. Bicyclo[2.2.1]Heptane-2- ................ 500 500/10,000
Carbonitrile, 5-Chloro-6-
((((Methylamino)Carbonyl)O
xy)Imino)-, (1s-(1-alpha,2-
beta,4-alpha,5-alpha,6E))-.
534-07-6.... Bis(Chloromethyl) Ketone... ................ 10 10/10,000
4044-65-9... Bitoscanate................ ................ 500 500/10,000
10294-34-5.. Boron Trichloride.......... ................ 500 500
7637-07-2... Boron Trifluoride.......... ................ 500 500
353-42-4.... Boron Trifluoride Compound ................ 1,000 1,000
With Methyl Ether (1:1).
28772-56-7.. Bromadiolone............... ................ 100 100/10,000
7726-95-6... Bromine.................... l 500 500
1306-19-0... Cadmium Oxide.............. ................ 100 100/10,000
2223-93-0... Cadmium Stearate........... c 1,000 1,000/10,000
7778-44-1... Calcium Arsenate........... ................ 1 500/10,000
[[Page 20480]]
8001-35-2... Camphechlor................ ................ 1 500/10,000
56-25-7..... Cantharidin................ ................ 100 100/10,000
51-83-2..... Carbachol Chloride......... ................ 500 500/10,000
26419-73-8.. Carbamic Acid, Methyl-, O- d 1 100/10,000
(((2,4-Dimethyl-1, 3-
Dithiolan-2-
yl)Methylene)Amino)-.
1563-66-2... Carbofuran................. ................ 10 10/10,000
75-15-0..... Carbon Disulfide........... l 100 10,000
786-19-6.... Carbophenothion............ ................ 500 500
57-74-9..... Chlordane.................. ................ 1 1,000
470-90-6.... Chlorfenvinfos............. ................ 500 500
7782-50-5... Chlorine................... ................ 10 100
24934-91-6.. Chlormephos................ ................ 500 500
999-81-5.... Chlormequat Chloride....... h 100 100/10,000
79-11-8..... Chloroacetic Acid.......... ................ 100 100/10,000
107-07-3.... Chloroethanol.............. ................ 500 500
627-11-2.... Chloroethyl Chloroformate.. ................ 1,000 1,000
67-66-3..... Chloroform................. l 10 10,000
542-88-1.... Chloromethyl Ether......... h 10 100
107-30-2.... Chloromethyl Methyl Ether.. c 10 100
3691-35-8... Chlorophacinone............ ................ 100 100/10,000
1982-47-4... Chloroxuron................ ................ 500 500/10,000
21923-23-9.. Chlorthiophos.............. h 500 500
10025-73-7.. Chromic Chloride........... ................ 1 1/10,000
62207-76-5.. Cobalt, ((2,2'-(1,2- ................ 100 100/10,000
Ethanediylbis
(Nitrilomethylidyne))
Bis(6-Fluorophenolato))(2-
)-N,N',O,O')-.
10210-68-1.. Cobalt Carbonyl............ h 10 10/10,000
64-86-8..... Colchicine................. h 10 10/10,000
56-72-4..... Coumaphos.................. ................ 10 100/10,000
5836-29-3... Coumatetralyl.............. ................ 500 500/10,000
95-48-7..... Cresol, o-................. ................ 100 1,000/10,000
535-89-7.... Crimidine.................. ................ 100 100/10,000
4170-30-3... Crotonaldehyde............. ................ 100 1,000
123-73-9.... Crotonaldehyde, (E)-....... ................ 100 1,000
506-68-3.... Cyanogen Bromide........... ................ 1,000 500/10,000
506-78-5.... Cyanogen Iodide............ ................ 1,000 1,000/10,000
2636-26-2... Cyanophos.................. ................ 1,000 1,000
675-14-9.... Cyanuric Fluoride.......... ................ 100 100
66-81-9..... Cycloheximide.............. ................ 100 100/10,000
108-91-8.... Cyclohexylamine............ l 10,000 10,000
17702-41-9.. Decaborane(14)............. ................ 500 500/10,000
8065-48-3... Demeton.................... ................ 500 500
919-86-8.... Demeton-S-Methyl........... ................ 500 500
10311-84-9.. Dialifor................... ................ 100 100/10,000
19287-45-7.. Diborane................... ................ 100 100
111-44-4.... Dichloroethyl ether........ ................ 10 10,000
149-74-6.... Dichloromethylphenylsilane. ................ 1,000 1,000
62-73-7..... Dichlorvos................. ................ 10 1,000
141-66-2.... Dicrotophos................ ................ 100 100
1464-53-5... Diepoxybutane.............. ................ 10 500
814-49-3.... Diethyl Chlorophosphate.... h 500 500
71-63-6..... Digitoxin.................. c 100 100/10,000
2238-07-5... Diglycidyl Ether........... ................ 1,000 1,000
20830-75-5.. Digoxin.................... h 10 10/10,000
115-26-4.... Dimefox.................... ................ 500 500
60-51-5..... Dimethoate................. ................ 10 500/10,000
2524-03-0... Dimethyl ................ 500 500
Phosphorochloridothioate.
77-78-1..... Dimethyl sulfate........... ................ 100 500
75-78-5..... Dimethyldichlorosilane..... h 500 500
57-14-7..... Dimethylhydrazine.......... ................ 10 1,000
99-98-9..... Dimethyl-p-Phenylenediamine ................ 10 10/10,000
644-64-4.... Dimetilan.................. d 1 500/10,000
534-52-1.... Dinitrocresol.............. ................ 10 10/10,000
88-85-7..... Dinoseb.................... ................ 1,000 100/10,000
1420-07-1... Dinoterb................... ................ 500 500/10,000
78-34-2..... Dioxathion................. ................ 500 500
82-66-6..... Diphacinone................ ................ 10 10/10,000
152-16-9.... Diphosphoramide, Octamethyl- ................ 100 100
.
298-04-4.... Disulfoton................. ................ 1 500
514-73-8.... Dithiazanine Iodide........ ................ 500 500/10,000
[[Page 20481]]
541-53-7.... Dithiobiuret............... ................ 100 100/10,000
316-42-7.... Emetine, Dihydrochloride... h 1 1/10,000
115-29-7.... Endosulfan................. ................ 1 10/10,000
2778-04-3... Endothion.................. ................ 500 500/10,000
72-20-8..... Endrin..................... ................ 1 500/10,000
106-89-8.... Epichlorohydrin............ l 100 1,000
2104-64-5... EPN........................ ................ 100 100/10,000
50-14-6..... Ergocalciferol............. c 1,000 1,000/10,000
379-79-3.... Ergotamine Tartrate........ ................ 500 500/10,000
1622-32-8... Ethanesulfonyl Chloride, 2- ................ 500 500
Chloro-.
10140-87-1.. Ethanol, 1,2-Dichloro-, ................ 1,000 1,000
Acetate.
563-12-2.... Ethion..................... ................ 10 1,000
13194-48-4.. Ethoprophos................ ................ 1,000 1,000
538-07-8.... Ethylbis(2- h 500 500
Chloroethyl)Amine.
371-62-0.... Ethylene Fluorohydrin...... c, h 10 10
75-21-8..... Ethylene Oxide............. l 10 1,000
107-15-3.... Ethylenediamine............ ................ 5,000 10,000
151-56-4.... Ethyleneimine.............. ................ 1 500
542-90-5.... Ethylthiocyanate........... ................ 10,000 10,000
22224-92-6.. Fenamiphos................. ................ 10 10/10,000
115-90-2.... Fensulfothion.............. h 500 500
4301-50-2... Fluenetil.................. ................ 100 100/10,000
7782-41-4... Fluorine................... k 10 500
640-19-7.... Fluoroacetamide............ j 100 100/10,000
144-49-0.... Fluoroacetic Acid.......... ................ 10 10/10,000
359-06-8.... Fluoroacetyl Chloride...... c 10 10
51-21-8..... Fluorouracil............... ................ 500 500/10,000
944-22-9.... Fonofos.................... ................ 500 500
50-00-0..... Formaldehyde............... l 100 500
107-16-4.... Formaldehyde Cyanohydrin... h 1,000 1,000
23422-53-9.. Formetanate Hydrochloride.. d, h 1 500/10,000
2540-82-1... Formothion................. ................ 100 100
17702-57-7.. Formparanate............... d 1 100/10,000
21548-32-3.. Fosthietan................. ................ 500 500
3878-19-1... Fuberidazole............... ................ 100 100/10,000
110-00-9.... Furan...................... ................ 100 500
13450-90-3.. Gallium Trichloride........ ................ 500 500/10,000
77-47-4..... Hexachlorocyclopentadiene.. h 10 100
4835-11-4... Hexamethylenediamine, N,N'- ................ 500 500
Dibutyl-.
302-01-2.... Hydrazine.................. ................ 1 1,000
74-90-8..... Hydrocyanic Acid........... ................ 10 100
7647-01-0... Hydrogen Chloride (gas l 5,000 500
only).
7664-39-3... Hydrogen Fluoride.......... ................ 100 100
7722-84-1... Hydrogen Peroxide (Conc > l 1,000 1,000
52%).
7783-07-5... Hydrogen Selenide.......... ................ 10 10
7783-06-4... Hydrogen Sulfide........... l 100 500
123-31-9.... Hydroquinone............... l 100 500/10,000
13463-40-6.. Iron, Pentacarbonyl-....... ................ 100 100
297-78-9.... Isobenzan.................. ................ 100 100/10,000
78-82-0..... Isobutyronitrile........... h 1,000 1,000
102-36-3.... Isocyanic Acid, 3,4- ................ 500 500/10,000
Dichlorophenyl Ester.
465-73-6.... Isodrin.................... ................ 1 100/10,000
55-91-4..... Isofluorphate.............. c 100 100
4098-71-9... Isophorone Diisocyanate.... ................ 100 100
108-23-6.... Isopropyl Chloroformate.... ................ 1,000 1,000
119-38-0.... Isopropylmethylpyrazolyl d 1 500
Dimethylcarbamate.
78-97-7..... Lactonitrile............... ................ 1,000 1,000
21609-90-5.. Leptophos.................. ................ 500 500/10,000
541-25-3.... Lewisite................... c, h 10 10
58-89-9..... Lindane.................... ................ 1 1,000/10,000
7580-67-8... Lithium Hydride............ b 100 100
109-77-3.... Malononitrile.............. ................ 1,000 500/10,000
12108-13-3.. Manganese, Tricarbonyl h 100 100
Methylcyclopentadienyl.
51-75-2..... Mechlorethamine............ c 10 10
950-10-7.... Mephosfolan................ ................ 500 500
1600-27-7... Mercuric Acetate........... ................ 500 500/10,000
7487-94-7... Mercuric Chloride.......... ................ 500 500/10,000
21908-53-2.. Mercuric Oxide............. ................ 500 500/10,000
[[Page 20482]]
10476-95-6.. Methacrolein Diacetate..... ................ 1,000 1,000
760-93-0.... Methacrylic Anhydride...... ................ 500 500
126-98-7.... Methacrylonitrile.......... h 1,000 500
920-46-7.... Methacryloyl Chloride...... ................ 100 100
30674-80-7.. Methacryloyloxyethyl h 100 100
Isocyanate.
10265-92-6.. Methamidophos.............. ................ 100 100/10,000
558-25-8.... Methanesulfonyl Fluoride... ................ 1,000 1,000
950-37-8.... Methidathion............... ................ 500 500/10,000
2032-65-7... Methiocarb................. ................ 10 500/10,000
16752-77-5.. Methomyl................... h 100 500/10,000
151-38-2.... Methoxyethylmercuric ................ 500 500/10,000
Acetate.
80-63-7..... Methyl 2-Chloroacrylate.... ................ 500 500
74-83-9..... Methyl Bromide............. l 1,000 1,000
79-22-1..... Methyl Chloroformate....... h 1,000 500
60-34-4..... Methyl Hydrazine........... ................ 10 500
624-83-9.... Methyl Isocyanate.......... ................ 10 500
556-61-6.... Methyl Isothiocyanate...... b 500 500
74-93-1..... Methyl Mercaptan........... l 100 500
3735-23-7... Methyl Phenkapton.......... ................ 500 500
676-97-1.... Methyl Phosphonic b 100 100
Dichloride.
556-64-9.... Methyl Thiocyanate......... ................ 10,000 10,000
78-94-4..... Methyl Vinyl Ketone........ ................ 10 10
502-39-6.... Methylmercuric Dicyanamide. ................ 500 500/10,000
75-79-6..... Methyltrichlorosilane...... h 500 500
1129-41-5... Metolcarb.................. d 1 100/10,000
7786-34-7... Mevinphos.................. ................ 10 500
315-18-4.... Mexacarbate................ ................ 1,000 500/10,000
50-07-7..... Mitomycin C................ ................ 10 500/10,000
6923-22-4... Monocrotophos.............. ................ 10 10/10,000
2763-96-4... Muscimol................... ................ 1,000 500/10,000
505-60-2.... Mustard Gas................ h 500 500
13463-39-3.. Nickel Carbonyl............ ................ 10 1
54-11-5..... Nicotine................... c 100 100
65-30-5..... Nicotine Sulfate........... ................ 100 100/10,000
7697-37-2... Nitric Acid................ ................ 1,000 1,000
10102-43-9.. Nitric Oxide............... c 10 100
98-95-3..... Nitrobenzene............... l 1,000 10,000
1122-60-7... Nitrocyclohexane........... ................ 500 500
10102-44-0.. Nitrogen Dioxide........... ................ 10 100
62-75-9..... Nitrosodimethylamine....... h 10 1,000
991-42-4.... Norbormide................. ................ 100 100/10,000
0........... Organorhodium Complex (PMN- ................ 10 10/10,000
82-147).
630-60-4.... Ouabain.................... c 100 100/10,000
23135-22-0.. Oxamyl..................... d 1 100/10,000
78-71-7..... Oxetane, 3,3- ................ 500 500
Bis(Chloromethyl)-.
2497-07-6... Oxydisulfoton.............. h 500 500
10028-15-6.. Ozone...................... ................ 100 100
1910-42-5... Paraquat Dichloride........ ................ 10 10/10,000
2074-50-2... Paraquat Methosulfate...... ................ 10 10/10,000
56-38-2..... Parathion.................. c 10 100
298-00-0.... Parathion-Methyl........... c 100 100/10,000
12002-03-8.. Paris Green................ ................ 1 500/10,000
19624-22-7.. Pentaborane................ ................ 500 500
2570-26-5... Pentadecylamine............ ................ 100 100/10,000
79-21-0..... Peracetic Acid............. ................ 500 500
594-42-3.... Perchloromethylmercaptan... ................ 100 500
108-95-2.... Phenol..................... ................ 1,000 500/10,000
4418-66-0... Phenol, 2,2'-Thiobis(4- ................ 100 100/10,000
Chloro-6-Methyl)-.
64-00-6..... Phenol, 3-(1-Methylethyl)-, d 1 500/10,000
Methylcarbamate.
58-36-6..... Phenoxarsine, 10,10'-Oxydi- ................ 500 500/10,000
696-28-6.... Phenyl Dichloroarsine...... h 1 500
59-88-1..... Phenylhydrazine ................ 1,000 1,000/10,000
Hydrochloride.
62-38-4..... Phenylmercury Acetate...... ................ 100 500/10,000
2097-19-0... Phenylsilatrane............ h 100 100/10,000
103-85-5.... Phenylthiourea............. ................ 100 100/10,000
298-02-2.... Phorate.................... ................ 10 10
4104-14-7... Phosacetim................. ................ 100 100/10,000
947-02-4.... Phosfolan.................. ................ 100 100/10,000
[[Page 20483]]
75-44-5..... Phosgene................... l 10 10
732-11-6.... Phosmet.................... ................ 10 10/10,000
13171-21-6.. Phosphamidon............... ................ 100 100
7803-51-2... Phosphine.................. ................ 100 500
2703-13-1... Phosphonothioic Acid, ................ 500 500
Methyl-, O-Ethyl O-(4-
(Methylthio) Phenyl) Ester.
50782-69-9.. Phosphonothioic Acid, ................ 100 100
Methyl-, S-(2-(Bis(1-
Methylethyl)Amino)Ethyl) O-
Ethyl Ester.
2665-30-7... Phosphonothioic Acid, ................ 500 500
Methyl-, O-(4-Nitrophenyl)
O-Phenyl Ester.
3254-63-5... Phosphoric Acid, Dimethyl 4- ................ 500 500
(Methylthio)Phenyl Ester.
2587-90-8... Phosphorothioic Acid, O,O- c, g 500 500
Dimethyl-S-(2-Methylthio)
Ethyl Ester.
7723-14-0... Phosphorus................. b, h 1 100
10025-87-3.. Phosphorus Oxychloride..... ................ 1,000 500
10026-13-8.. Phosphorus Pentachloride... b 500 500
7719-12-2... Phosphorus Trichloride..... ................ 1,000 1,000
57-47-6..... Physostigmine.............. d 1 100/10,000
57-64-7..... Physostigmine, Salicylate d 1 100/10,000
(1:1).
124-87-8.... Picrotoxin................. ................ 500 500/10,000
110-89-4.... Piperidine................. ................ 1,000 1,000
23505-41-1.. Pirimifos-Ethyl............ ................ 1,000 1,000
10124-50-2.. Potassium Arsenite......... ................ 1 500/10,000
151-50-8.... Potassium Cyanide.......... b 10 100
506-61-6.... Potassium Silver Cyanide... b 1 500
2631-37-0... Promecarb.................. d, h 1 500/10,000
106-96-7.... Propargyl Bromide.......... ................ 10 10
57-57-8..... Propiolactone, Beta-....... ................ 10 500
107-12-0.... Propionitrile.............. ................ 10 500
542-76-7.... Propionitrile, 3-Chloro-... ................ 1,000 1,000
70-69-9..... Propiophenone, 4-Amino-.... g 100 100/10,000
109-61-5.... Propyl Chloroformate....... ................ 500 500
75-56-9..... Propylene Oxide............ l 100 10,000
75-55-8..... Propyleneimine............. ................ 1 10,000
2275-18-5... Prothoate.................. ................ 100 100/10,000
129-00-0.... Pyrene..................... c 5,000 1,000/10,000
140-76-1.... Pyridine, 2-Methyl-5-Vinyl- ................ 500 500
504-24-5.... Pyridine, 4-Amino-......... h 1,000 500/10,000
1124-33-0... Pyridine, 4-Nitro-,l-Oxide. ................ 500 500/10,000
53558-25-1.. Pyriminil.................. h 100 100/10,000
14167-18-1.. Salcomine.................. ................ 500 500/10,000
107-44-8.... Sarin...................... h 10 10
7783-00-8... Selenious Acid............. ................ 10 1,000/10,000
7791-23-3... Selenium Oxychloride....... ................ 500 500
563-41-7.... Semicarbazide Hydrochloride ................ 1,000 1,000/10,000
3037-72-7... Silane, (4- ................ 1,000 1,000
Aminobutyl)Diethoxymethyl-.
7631-89-2... Sodium Arsenate............ ................ 1 1,000/10,000
7784-46-5... Sodium Arsenite............ ................ 1 500/10,000
26628-22-8.. Sodium Azide (Na(N3))...... b 1,000 500
124-65-2.... Sodium Cacodylate.......... ................ 100 100/10,000
143-33-9.... Sodium Cyanide (Na(CN)).... b 10 100
62-74-8..... Sodium Fluoroacetate....... ................ 10 10/10,000
13410-01-0.. Sodium Selenate............ ................ 100 100/10,000
10102-18-8.. Sodium Selenite............ h 100 100/10,000
10102-20-2.. Sodium Tellurite........... ................ 500 500/10,000
900-95-8.... Stannane, Acetoxytriphenyl- g 500 500/10,000
57-24-9..... Strychnine................. c 10 100/10,000
60-41-3..... Strychnine Sulfate......... ................ 10 100/10,000
3689-24-5... Sulfotep................... ................ 100 500
3569-57-1... Sulfoxide, 3-Chloropropyl ................ 500 500
Octyl.
7446-09-5... Sulfur Dioxide............. 1 500 500
7783-60-0... Sulfur Tetrafluoride....... ................ 100 100
7446-11-9... Sulfur Trioxide............ b 100 100
7664-93-9... Sulfuric Acid.............. ................ 1,000 1,000
77-81-6..... Tabun...................... c, h 10 10
7783-80-4... Tellurium Hexafluoride..... k 100 100
107-49-3.... TEPP....................... ................ 10 100
13071-79-9.. Terbufos................... h 100 100
78-00-2..... Tetraethyllead............. c 10 100
597-64-8.... Tetraethyltin.............. c 100 100
75-74-1..... Tetramethyllead............ c, 1 100 100
509-14-8.... Tetranitromethane.......... ................ 10 500
[[Page 20484]]
10031-59-1.. Thallium Sulfate........... h 100 100/10,000
6533-73-9... Thallous Carbonate......... c, h 100 100/10,000
7791-12-0... Thallous Chloride.......... c, h 100 100/10,000
2757-18-8... Thallous Malonate.......... c, h 100 100/10,000
7446-18-6... Thallous Sulfate........... ................ 100 100/10,000
2231-57-4... Thiocarbazide.............. ................ 1,000 1,000/10,000
39196-18-4.. Thiofanox.................. ................ 100 100/10,000
297-97-2.... Thionazin.................. ................ 100 500
108-98-5.... Thiophenol................. ................ 100 500
79-19-6..... Thiosemicarbazide.......... ................ 100 100/10,000
5344-82-1... Thiourea, (2-Chlorophenyl)- ................ 100 100/10,000
614-78-8.... Thiourea, (2-Methylphenyl)- ................ 500 500/10,000
7550-45-0... Titanium Tetrachloride..... ................ 1,000 100
584-84-9.... Toluene 2,4-Diisocyanate... ................ 100 500
91-08-7..... Toluene 2,6-Diisocyanate... ................ 100 100
110-57-6.... Trans-1,4-Dichlorobutene... ................ 500 500
1031-47-6... Triamiphos................. ................ 500 500/10,000
24017-47-8.. Triazofos.................. ................ 500 500
76-02-8..... Trichloroacetyl Chloride... ................ 500 500
115-21-9.... Trichloroethylsilane....... h 500 500
327-98-0.... Trichloronate.............. k 500 500
98-13-5..... Trichlorophenylsilane...... h 500 500
1558-25-4... Trichloro(Chloromethyl)Sila ................ 100 100
ne.
27137-85-5.. Trichloro(Dichlorophenyl) ................ 500 500
Silane.
998-30-1.... Triethoxysilane............ ................ 500 500
75-77-4..... Trimethylchlorosilane...... ................ 1,000 1,000
824-11-3.... Trimethylolpropane h 100 100/10,000
Phosphite.
1066-45-1... Trimethyltin Chloride...... ................ 500 500/10,000
639-58-7.... Triphenyltin Chloride...... ................ 500 500/10,000
555-77-1.... Tris(2-Chloroethyl)Amine... h 100 100
2001-95-8... Valinomycin................ c 1,000 1,000/10,000
1314-62-1... Vanadium Pentoxide......... ................ 1,000 100/10,000
108-05-4.... Vinyl Acetate Monomer...... 1 5,000 1,000
81-81-2..... Warfarin................... ................ 100 500/10,000
129-06-6.... Warfarin Sodium............ h 100 100/10,000
28347-13-9.. Xylylene Dichloride........ ................ 100 100/10,000
58270-08-9.. Zinc, Dichloro(4,4- ................ 100 100/10,000
Dimethyl-
5((((Methylamino)Carbonyl)
Oxy)Imino)Pentanenitrile)-
, (T-4)-.
1314-84-7... Zinc Phosphide............. b 100 500
----------------------------------------------------------------------------------------------------------------
* Only the statutory or final RQ is shown. For more information, see 40 CFR Table 302.4.
Notes:
a This chemical does not meet acute toxicity criteria. Its TPQ is set at 10,000 pounds.
b This material is a reactive solid. The TPQ does not default to 10,000 pounds for non-powder, non-molten,
nonsolution form.
c The calculated TPQ changed after technical review as described in the technical support document.
d Indicates that the RQ is subject to change when the assessment of potential carcinogenicity and/or other
toxicity is completed.
e Statutory reportable quantity for purposes of notification under SARA sect 304(a)(2).
f [Reserved]
g New chemicals added that were not part of the original list of 402 substances.
h Revised TPQ based on new or re-evaluated toxicity data.
j TPQ is revised to its calculated value and does not change due to technical review as in proposed rule.
k The TPQ was revised after proposal due to calculation error.
l Chemicals on the original list that do not meet toxicity criteria but because of their high production volume
and recognized toxicity are considered chemicals of concern (``Other chemicals'').
Appendix B to Part 355--The List of Extremely Hazardous Substances and Their Threshold Planning Quantities
[CAS Number Order]
----------------------------------------------------------------------------------------------------------------
Reportable quantity * Threshold planning quantity
CAS No. Chemical name Notes (pounds) (pounds)
----------------------------------------------------------------------------------------------------------------
0........... Organorhodium Complex (PMN- ................ 10 10/10,000
82-147).
50-00-0..... Formaldehyde............... l 100 500
50-07-7..... Mitomycin C................ ................ 10 500/10,000
50-14-6..... Ergocalciferol............. c 1,000 1,000/10,000
51-21-8..... Fluorouracil............... ................ 500 500/10,000
51-75-2..... Mechlorethaminec........... c 10 10
[[Page 20485]]
51-83-2..... Carbachol Chloride......... ................ 500 500/10,000
54-11-5..... Nicotine................... c 100 100
54-62-6..... Aminopterin................ ................ 500 500/10,000
55-91-4..... Isofluorphate.............. c 100 100
56-25-7..... Cantharidin................ ................ 100 100/10,000
56-38-2..... Parathion.................. c 10 100
56-72-4..... Coumaphos.................. ................ 10 100/10,000
57-14-7..... Dimethylhydrazine.......... ................ 10 1,000
57-24-9..... Strychnine................. c 10 100/10,000
57-47-6..... Physostigmine.............. d 1 100/10,000
57-57-8..... Propiolactone, Beta-....... ................ 10 500
57-64-7..... Physostigmine, Salicylate d 1 100/10,000
(1:1).
57-74-9..... Chlordane.................. ................ 1 1,000
58-36-6..... Phenoxarsine, 10,10'-Oxydi- ................ 500 500/10,000
58-89-9..... Lindane.................... ................ 1 1,000/10,000
59-88-1..... Phenylhydrazine ................ 1,000 1,000/10,000
Hydrochloride.
60-34-4..... Methyl Hydrazine........... ................ 10 500
60-41-3..... Strychnine sulfate......... ................ 10 100/10,000
60-51-5..... Dimethoate................. ................ 10 500/10,000
62-38-4..... Phenylmercury Acetate...... ................ 100 500/10,000
62-53-3..... Aniline.................... l 5,000 1,000
62-73-7..... Dichlorvos................. ................ 10 1,000
62-74-8..... Sodium Fluoroacetate....... ................ 10 10/10,000
62-75-9..... Nitrosodimethylamine....... h 10 1,000
64-00-6..... Phenol, 3-(1-Methylethyl)-, d 1 500/10,000
Methylcarbamate.
64-86-8..... Colchicine................. h 10 10/10,000
65-30-5..... Nicotine sulfate........... ................ 100 100/10,000
66-81-9..... Cycloheximide.............. ................ 100 100/10,000
67-66-3..... Chloroform................. l 10 10,000
70-69-9..... Propiophenone, 4-Amino-.... g 100 100/10,000
71-63-6..... Digitoxin.................. c 100 100/10,000
72-20-8..... Endrin..................... ................ 1 500/10,000
74-83-9..... Methyl Bromide............. l 1,000 1,000
74-90-8..... Hydrocyanic Acid........... ................ 10 100
74-93-1..... Methyl Mercaptan........... l 100 500
75-15-0..... Carbon Disulfide........... l 100 10,000
75-21-8..... Ethylene Oxide............. l 10 1,000
75-44-5..... Phosgene................... l 10 10
75-55-8..... Propyleneimine............. ................ 1 10,000
75-56-9..... Propylene Oxide............ l 100 10,000
75-74-1..... Tetramethyllead............ c, l 100 100
75-77-4..... Trimethylchlorosilane...... ................ 1,000 1,000
75-78-5..... Dimethyldichlorosilane..... h 500 500
75-79-6..... Methyltrichlorosilane...... h 500 500
75-86-5..... Acetone Cyanohydrin........ ................ 10 1,000
76-02-8..... Trichloroacetyl Chloride... ................ 500 500
77-47-4..... Hexachlorocyclopentadiene.. h 10 100
77-78-1..... Dimethyl Sulfate........... ................ 100 500
77-81-6..... Tabun...................... c, h 10 10
78-00-2..... Tetraethyllead............. c 10 100
78-34-2..... Dioxathion................. ................ 500 500
78-53-5..... Amiton..................... ................ 500 500
78-71-7..... Oxetane, 3,3- ................ 500 500
Bis(Chloromethyl)-.
78-82-0..... Isobutyronitrile........... h 1,000 1,000
78-94-4..... Methyl Vinyl Ketone........ ................ 10 10
78-97-7..... Lactonitrile............... ................ 1,000 1,000
79-06-1..... Acrylamide................. l 5,000 1,000/10,000
79-11-8..... Chloroacetic Acid.......... ................ 100 100/10,000
79-19-6..... Thiosemicarbazide.......... ................ 100 100/10,000
79-21-0..... Peracetic Acid............. ................ 500 500
79-22-1..... Methyl Chloroformate....... h 1,000 500
80-63-7..... Methyl 2-Chloroacrylate.... ................ 500 500
81-81-2..... Warfarin................... ................ 100 500/10,000
82-66-6..... Diphacinone................ ................ 10 10/10,000
86-50-0..... Azinphos-Methyl............ ................ 1 10/10,000
86-88-4..... ANTU....................... ................ 100 500/10,000
88-05-1..... Aniline, 2,4,6-Trimethyl-.. ................ 500 500
88-85-7..... Dinoseb.................... ................ 1,000 100/10,000
[[Page 20486]]
91-08-7..... Toluene 2,6-Diisocyanate... ................ 100 100
95-48-7..... Cresol, o-................. ................ 100 1,000/10,000
98-05-5..... Benzenearsonic Acid........ ................ 10 10/10,000
98-07-7..... Benzotrichloride........... ................ 10 100
98-13-5..... Trichlorophenylsilane...... h 500 500
98-16-8..... Benzenamine, 3- ................ 500 500
(Trifluoromethyl)-.
98-87-3..... Benzal Chloride............ ................ 5,000 500
98-95-3..... Nitrobenzene............... l 1,000 10,000
99-98-9..... Dimethyl-p-Phenylenediamine ................ 10 10/10,000
100-14-1.... Benzene, 1-(Chloromethyl)-4- ................ 500 500/10,000
Nitro-.
100-44-7.... Benzyl Chloride............ ................ 100 500
102-36-3.... Isocyanic Acid, 3,4- ................ 500 500/10,000
Dichlorophenyl Ester.
103-85-5.... Phenylthiourea............. ................ 100 100/10,000
106-89-8.... Epichlorohydrin............ l 100 1,000
106-96-7.... Propargyl Bromide.......... ................ 10 10
107-02-8.... Acrolein................... ................ 1 500
107-07-3.... Chloroethanol.............. ................ 500 500
107-11-9.... Allylamine................. ................ 500 500
107-12-0.... Propionitrile.............. ................ 10 500
107-13-1.... Acrylonitrile.............. l 100 10,000
107-15-3.... Ethylenediamine............ ................ 5,000 10,000
107-16-4.... Formaldehyde Cyanohydrin... h 1,000 1,000
107-18-6.... Allyl Alcohol.............. ................ 100 1,000
107-30-2.... Chloromethyl Methyl Ether.. c 10 100
107-44-8.... Sarin...................... h 10 10
107-49-3.... TEPP....................... ................ 10 100
108-05-4.... Vinyl Acetate Monomer...... l 5,000 1,000
108-23-6.... Isopropyl Chloroformate.... ................ 1,000 1,000
108-91-8.... Cyclohexylamine............ l 10,000 10,000
108-95-2.... Phenol..................... ................ 1,000 500/10,000
108-98-5.... Thiophenol................. ................ 100 500
109-61-5.... Propyl Chloroformate....... ................ 500 500
109-77-3.... Malononitrile.............. ................ 1,000 500/10,000
110-00-9.... Furan...................... ................ 100 500
110-57-6.... Trans-1,4-Dichlorobutene... ................ 500 500
110-89-4.... Piperidine................. ................ 1,000 1,000
111-44-4.... Dichloroethyl Ether........ ................ 10 10,000
111-69-3.... Adiponitrile............... l 1,000 1,000
115-21-9.... Trichloroethylsilane....... h 500 500
115-26-4.... Dimefox.................... ................ 500 500
115-29-7.... Endosulfan................. ................ 1 10/10,000
115-90-2.... Fensulfothion.............. h 500 500
116-06-3.... Aldicarb................... c 1 100/10,000
119-38-0.... Isopropylmethylpyrazolyl d 1 500
Dimethylcarbamate.
123-31-9.... Hydroquinone............... l 100 500/10,000
123-73-9.... Crotonaldehyde, (E)-....... ................ 100 1,000
124-65-2.... Sodium Cacodylate.......... ................ 100 100/10,000
124-87-8.... Picrotoxin................. ................ 500 500/10,000
126-98-7.... Methacrylonitrile.......... h 1,000 500
129-00-0.... Pyrene..................... c 5,000 1,000/10,000
129-06-6.... Warfarin Sodium............ h 100 100/10,000
140-29-4.... Benzyl Cyanide............. h 500 500
140-76-1.... Pyridine, 2-Methyl-5-Vinyl- ................ 500 500
141-66-2.... Dicrotophos................ ................ 100 100
143-33-9.... Sodium Cyanide (Na(CN)).... b 10 100
144-49-0.... Fluoroacetic Acid.......... ................ 10 10/10,000
149-74-6.... Dichloromethylphenylsilane. ................ 1,000 1,000
151-38-2.... Methoxyethylmercuric ................ 500 500/10,000
Acetate.
151-50-8.... Potassium Cyanide.......... b 10 100
151-56-4.... Ethyleneimine.............. ................ 1 500
152-16-9.... Diphosphoramide, Octamethyl- ................ 100 100
.
297-78-9.... Isobenzan.................. ................ 100 100/10,000
297-97-2.... Thionazin.................. ................ 100 500
298-00-0.... Parathion-Methyl........... c 100 100/10,000
298-02-2.... Phorate.................... ................ 10 10
298-04-4.... Disulfoton................. ................ 1 500
300-62-9.... Amphetamine................ ................ 1,000 1,000
302-01-2.... Hydrazine.................. ................ 1 1,000
[[Page 20487]]
309-00-2.... Aldrin..................... ................ 1 500/10,000
315-18-4.... Mexacarbate................ ................ 1,000 500/10,000
316-42-7.... Emetine, Dihydrochloride... h 1 1/10,000
327-98-0.... Trichloronate.............. k 500 500
353-42-4.... Boron Trifluoride Compound ................ 1,000 1,000
With Methyl Ether (1:1).
359-06-8.... Fluoroacetyl Chloride...... c 10 10
371-62-0.... Ethylene Fluorohydrin...... c, h 10 10
379-79-3.... Ergotamine Tartrate........ ................ 500 500/10,000
465-73-6.... Isodrin.................... ................ 1 100/10,000
470-90-6.... Chlorfenvinfos............. ................ 500 500
502-39-6.... Methylmercuric Dicyanamide. ................ 500 500/10,000
504-24-5.... Pyridine, 4-Amino-......... h 1,000 500/10,000
505-60-2.... Mustard Gas................ h 500 500
506-61-6.... Potassium Silver Cyanide... b 1 500
506-68-3.... Cyanogen Bromide........... ................ 1,000 500/10,000
506-78-5.... Cyanogen Iodide............ ................ 1,000 1,000/10,000
509-14-8.... Tetranitromethane.......... ................ 10 500
514-73-8.... Dithiazanine Iodide........ ................ 500 500/10,000
534-07-6.... Bis(Chloromethyl) Ketone... ................ 10 10/10,000
534-52-1.... Dinitrocresol.............. ................ 10 10/10,000
535-89-7.... Crimidine.................. ................ 100 100/10,000
538-07-8.... Ethylbis(2- h 500 500
Chloroethyl)Amine.
541-25-3.... Lewisite................... c, h 10 10
541-53-7.... Dithiobiuret............... ................ 100 100/10,000
542-76-7.... Propionitrile, 3-Chloro-... ................ 1,000 1,000
542-88-1.... Chloromethyl Ether......... h 10 100
542-90-5.... Ethylthiocyanate........... ................ 10,000 10,000
555-77-1.... Tris(2-Chloroethyl)Amine... h 100 100
556-61-6.... Methyl Isothiocyanate...... b 500 500
556-64-9.... Methyl Thiocyanate......... ................ 10,000 10,000
558-25-8.... Methanesulfonyl Fluoride... ................ 1,000 1,000
563-12-2.... Ethion..................... ................ 10 1,000
563-41-7.... Semicarbazide Hydrochloride ................ 1,000 1,000/10,000
584-84-9.... Toluene 2,4-Diisocyanate... ................ 100 500
594-42-3.... Perchloromethylmercaptan... ................ 100 500
597-64-8.... Tetraethyltin.............. c 100 100
614-78-8.... Thiourea, (2-Methylphenyl)- ................ 500 500/10,000
624-83-9.... Methyl Isocyanate.......... ................ 10 500
627-11-2.... Chloroethyl Chloroformate.. ................ 1,000 1,000
630-60-4.... Ouabain.................... c 100 100/10,000
639-58-7.... Triphenyltin Chloride...... ................ 500 500/10,000
640-19-7.... Fluoroacetamide............ j 100 100/10,000
644-64-4.... Dimetilan.................. d 1 500/10,000
675-14-9.... Cyanuric Fluoride.......... ................ 100 100
676-97-1.... Methyl Phosphonic b 100 100
Dichloride.
696-28-6.... Phenyl Dichloroarsine...... h 1 500
732-11-6.... Phosmet.................... ................ 10 10/10,000
760-93-0.... Methacrylic Anhydride...... ................ 500 500
786-19-6.... Carbophenothion............ ................ 500 500
814-49-3.... Diethyl Chlorophosphate.... h 500 500
814-68-6.... Acrylyl Chloride........... h 100 100
824-11-3.... Trimethylolpropane h 100 100/10,000
Phosphite.
900-95-8.... Stannane, Acetoxytriphenyl- g 500 500/10,000
919-86-8.... Demeton-S-Methyl........... ................ 500 500
920-46-7.... Methacryloyl Chloride...... ................ 100 100
944-22-9.... Fonofos.................... ................ 500 500
947-02-4.... Phosfolan.................. ................ 100 100/10,000
950-10-7.... Mephosfolan................ ................ 500 500
950-37-8.... Methidathion............... ................ 500 500/10,000
991-42-4.... Norbormide................. ................ 100 100/10,000
998-30-1.... Triethoxysilane............ ................ 500 500
999-81-5.... Chlormequat Chloride....... h 100 100/10,000
1031-47-6... Triamiphos................. ................ 500 500/10,000
1066-45-1... Trimethyltin Chloride...... ................ 500 500/10,000
1122-60-7... Nitrocyclohexane........... ................ 500 500
1124-33-0... Pyridine, 4-Nitro-,1-Oxide. ................ 500 500/10,000
1129-41-5... Metolcarb.................. d 1 100/10,000
1303-28-2... Arsenic Pentoxide.......... ................ 1 100/10,000
[[Page 20488]]
1306-19-0... Cadmium Oxide.............. ................ 100 100/10,000
1314-62-1... Vanadium Pentoxide......... ................ 1,000 100/10,000
1314-84-7... Zinc Phosphide............. b 100 500
1327-53-3... Arsenous Oxide............. h 1 100/10,000
1397-94-0... Antimycin A................ c 1,000 1,000/10,000
1420-07-1... Dinoterb................... ................ 500 500/10,000
1464-53-5... Diepoxybutane.............. ................ 10 500
1558-25-4... Trichloro(Chloromethyl)Sila ................ 100 100
ne.
1563-66-2... Carbofuran................. ................ 10 10/10,000
1600-27-7... Mercuric Acetate........... ................ 500 500/10,000
1622-32-8... Ethanesulfonyl Chloride, 2- ................ 500 500
Chloro-.
1752-30-3... Acetone Thiosemicarbazide.. ................ 1,000 1,000/10,000
1910-42-5... Paraquat Dichloride........ ................ 10 10/10,000
1982-47-4... Chloroxuron................ ................ 500 500/10,000
2001-95-8... Valinomycin................ c 1,000 1,000/10,000
2032-65-7... Methiocarb................. ................ 10 500/10,000
2074-50-2... Paraquat Methosulfate...... ................ 10 10/10,000
2097-19-0... Phenylsilatrane............ h 100 100/10,000
2104-64-5... EPN........................ ................ 100 100/10,000
2223-93-0... Cadmium Stearate........... c 1,000 1,000/10,000
2231-57-4... Thiocarbazide.............. ................ 1,000 1,000/10,000
2238-07-5... Diglycidyl Ether........... ................ 1,000 1,000
2275-18-5... Prothoate.................. ................ 100 100/10,000
2497-07-6... Oxydisulfoton.............. h 500 500
2524-03-0... Dimethyl ................ 500 500
Phosphorochloridothioate.
2540-82-1... Formothion................. ................ 100 100
2570-26-5... Pentadecylamine............ ................ 100 100/10,000
2587-90-8... Phosphorothioic Acid, O,O- c, g 500 500
Dimethyl-S-(2-Methylthio)
Ethyl Ester.
2631-37-0... Promecarb.................. d, h 1 500/10,000
2636-26-2... Cyanophos.................. ................ 1,000 1,000
2642-71-9... Azinphos-Ethyl............. ................ 100 100/10,000
2665-30-7... Phosphonothioic Acid, ................ 500 500
Methyl-, O-(4-Nitrophenyl)
O-Phenyl Ester.
2703-13-1... Phosphonothioic Acid, ................ 500 500
Methyl-, O-Ethyl O-(4-
(Methylthio)Phenyl) Ester.
2757-18-8... Thallous Malonate.......... c, h 100 100/10,000
2763-96-4... Muscimol................... ................ 1,000 500/10,000
2778-04-3... Endothion.................. ................ 500 500/10,000
3037-72-7... Silane, (4- ................ 1,000 1,000
Aminobutyl)Diethoxymethyl-.
3254-63-5... Phosphoric Acid, Dimethyl 4- ................ 500 500
(Methylthio)Phenyl Ester.
3569-57-1... Sulfoxide, 3-Chloropropyl ................ 500 500
Octyl.
3615-21-2... Benzimidazole, 4,5-Dichloro- g 500 500/10,000
2-(Trifluoromethyl)-.
3689-24-5... Sulfotep................... ................ 100 500
3691-35-8... Chlorophacinone............ ................ 100 100/10,000
3734-97-2... Amiton Oxalate............. ................ 100 100/10,000
3735-23-7... Methyl Phenkapton.......... ................ 500 500
3878-19-1... Fuberidazole............... ................ 100 100/10,000
4044-65-9... Bitoscanate................ ................ 500 500/10,000
4098-71-9... Isophorone Diisocyanate.... ................ 100 100
4104-14-7... Phosacetim................. ................ 100 100/10,000
4170-30-3... Crotonaldehyde............. ................ 100 1,000
4301-50-2... Fluenetil.................. ................ 100 100/10,000
4418-66-0... Phenol, 2,2'-Thiobis(4- ................ 100 100/10,000
Chloro-6-Methyl)-.
4835-11-4... Hexamethylenediamine, N,N'- ................ 500 500
Dibutyl-.
5344-82-1... Thiourea, (2-Chlorophenyl)- ................ 100 100/10,000
5836-29-3... Coumatetralyl.............. ................ 500 500/10,000
6533-73-9... Thallous Carbonate......... c, h 100 100/10,000
6923-22-4... Monocrotophos.............. ................ 10 10/10,000
7446-09-5... Sulfur Dioxide............. l 500 500
7446-11-9... Sulfur Trioxide............ b 100 100
7446-18-6... Thallous Sulfate........... ................ 100 100/10,000
7487-94-7... Mercuric Chloride.......... ................ 500 500/10,000
7550-45-0... Titanium Tetrachloride..... ................ 1,000 100
7580-67-8... Lithium Hydride............ b 100 100
7631-89-2... Sodium Arsenate............ ................ 1 1,000/10,000
7637-07-2... Boron Trifluoride.......... ................ 500 500
7647-01-0... Hydrogen Chloride (gas l 5,000 500
only).
7664-39-3... Hydrogen Fluoride.......... ................ 100 100
7664-41-7... Ammonia.................... l 100 500
7664-93-9... Sulfuric Acid.............. ................ 1,000 1,000
[[Page 20489]]
7697-37-2... Nitric Acid................ ................ 1,000 1,000
7719-12-2... Phosphorus Trichloride..... ................ 1,000 1,000
7722-84-1... Hydrogen Peroxide (Conc > l 1,000 1,000
52%).
7723-14-0... Phosphorus................. b, h 1 100
7726-95-6... Bromine.................... l 500 500
7778-44-1... Calcium Arsenate........... ................ 1 500/10,000
7782-41-4... Fluorine................... k 10 500
7782-50-5... Chlorine................... ................ 10 100
7783-00-8... Selenious Acid............. ................ 10 1,000/10,000
7783-06-4... Hydrogen Sulfide........... l 100 500
7783-07-5... Hydrogen Selenide.......... ................ 10 10
7783-60-0... Sulfur Tetrafluoride....... ................ 100 100
7783-70-2... Antimony Pentafluoride..... ................ 500 500
7783-80-4... Tellurium Hexafluoride..... k 100 100
7784-34-1... Arsenous Trichloride....... ................ 1 500
7784-42-1... Arsine..................... ................ 100 100
7784-46-5... Sodium Arsenite............ ................ 1 500/10,000
7786-34-7... Mevinphos.................. ................ 10 500
7791-12-0... Thallous Chloride.......... c, h 100 100/10,000
7791-23-3... Selenium Oxychloride....... ................ 500 500
7803-51-2... Phosphine.................. ................ 100 500
8001-35-2... Camphechlor................ ................ 1 500/10,000
8065-48-3... Demeton.................... ................ 500 500
10025-73-7.. Chromic Chloride........... ................ 1 1/10,000
10025-87-3.. Phosphorus Oxychloride..... ................ 1,000 500
10026-13-8.. Phosphorus Pentachloride... b 500 500
10028-15-6.. Ozone...................... ................ 100 100
10031-59-1.. Thallium Sulfate........... h 100 100/10,000
10102-18-8.. Sodium Selenite............ h 100 100/10,000
10102-20-2.. Sodium Tellurite........... ................ 500 500/10,000
10102-43-9.. Nitric Oxide............... c 10 100
10102-44-0.. Nitrogen Dioxide........... ................ 10 100
10124-50-2.. Potassium Arsenite......... ................ 1 500/10,000
10140-87-1.. Ethanol, 1,2-Dichloro-, ................ 1,000 1,000
Acetate.
10210-68-1.. Cobalt Carbonyl............ h 10 10/10,000
10265-92-6.. Methamidophos.............. ................ 100 100/10,000
10294-34-5.. Boron Trichloride.......... ................ 500 500
10311-84-9.. Dialifor................... ................ 100 100/10,000
10476-95-6.. Methacrolein Diacetate..... ................ 1,000 1,000
12002-03-8.. Paris Green................ ................ 1 500/10,000
12108-13-3.. Manganese, Tricarbonyl h 100 100
Methylcyclopentadienyl.
13071-79-9.. Terbufosh.................. h 100 100
13171-21-6.. Phosphamidon............... ................ 100 100
13194-48-4.. Ethoprophos................ ................ 1,000 1,000
13410-01-0.. Sodium Selenate............ ................ 100 100/10,000
13450-90-3.. Gallium Trichloride........ ................ 500 500/10,000
13463-39-3.. Nickel Carbonyl............ ................ 10 1
13463-40-6.. Iron, Pentacarbonyl-....... ................ 100 100
14167-18-1.. Salcomine.................. ................ 500 500/10,000
15271-41-7.. Bicyclo[2.2.1]Heptane-2- ................ 500 500/10,000
Carbonitrile, 5-Chloro-6-
((((Methylamino)Carbonyl)O
xy)Imino)-, (1s-(1-alpha,2-
beta,4-alpha,5-alpha,6E))-.
16752-77-5.. Methomyl................... h 100 500/10,000
17702-41-9.. Decaborane(14)............. ................ 500 500/10,000
17702-57-7.. Formparanated.............. d 1 100/10,000
19287-45-7.. Diborane................... ................ 100 100
19624-22-7.. Pentaborane................ ................ 500 500
20830-75-5.. Digoxin.................... h 10 10/10,000
20859-73-8.. Aluminum Phosphide......... b 100 500
21548-32-3.. Fosthietan................. ................ 500 500
21609-90-5.. Leptophos.................. ................ 500 500/10,000
21908-53-2.. Mercuric Oxide............. ................ 500 500/10,000
21923-23-9.. Chlorthiophos.............. h 500 500
22224-92-6.. Fenamiphos................. ................ 10 10/10,000
23135-22-0.. Oxamyl..................... d 1 100/10,000
23422-53-9.. Formetanate Hydrochloride.. d, h 1 500/10,000
23505-41-1.. Pirimifos-Ethyl............ ................ 1,000 1,000
24017-47-8.. Triazofos.................. ................ 500 500
24934-91-6.. Chlormephos................ ................ 500 500
[[Page 20490]]
26419-73-8.. Carbamic Acid, Methyl-, O- d 1 100/10,000
(((2,4-Dimethyl-1, 3-
Dithiolan-2-
yl)Methylene)Amino)-.
26628-22-8.. Sodium Azide (Na(N3))...... b 1,000 500
27137-85-5.. Trichloro(Dichlorophenyl)Si ................ 500 500
lane.
28347-13-9.. Xylylene Dichloride........ ................ 100 100/10,000
28772-56-7.. Bromadiolone............... ................ 100 100/10,000
30674-80-7.. Methacryloyloxyethyl ................ 100 100
Isocyanateh.
39196-18-4.. Thiofanox.................. ................ 100 100/10,000
50782-69-9.. Phosphonothioic Acid, ................ 100 100
Methyl-, S-(2-(Bis(1-
Methylethyl)Amino)Ethyl) O-
Ethyl Ester.
53558-25-1.. Pyriminil.................. h 100 100/10,000
58270-08-9.. Zinc, Dichloro(4,4-Dimethyl- ................ 100 100/10,000
5((((Methylamino)
Carbonyl)Oxy)Imino)Pentane
nitrile)-, (T-4)-.
62207-76-5.. Cobalt, ((2,2'-(1,2- ................ 100 100/10,000
Ethanediylbis
(Nitrilomethylidyne))
Bis(6-Fluorophenolato)) (2-
)-N,N',O,O')-.
----------------------------------------------------------------------------------------------------------------
*Only the statutory or final RQ is shown. For more information, see 40 CFR Table 302.4.
Notes:
a. This chemical does not meet acute toxicity criteria. Its TPQ is set at 10,000 pounds.
b. This material is a reactive solid. The TPQ does not default to 10,000 pounds for non-powder, non-molten, non-
solution form.
c. The calculated TPQ changed after technical review as described in the technical support document.
d. Indicates that the RQ is subject to change when the assessment of potential carcinogenicity and/or other
toxicity is completed.
e. Statutory reportable quantity for purposes of notification under SARA sect 304(a)(2).
f. [Reserved]
g. New chemicals added that were not part of the original list of 402 substances.
h. Revised TPQ based on new or re-evaluated toxicity data.
j. TPQ is revised to its calculated value and does not change due to technical review as in proposed rule.
k. The TPQ was revised after proposal due to calculation error.
l. Chemicals on the original list that do not meet toxicity criteria but because of their high production volume
and recognized toxicity are considered chemicals of concern (``Other chemicals'').
[FR Doc. 96-11209 Filed 5-6-96; 8:45 am]
BILLING CODE 6560-50-P
