### 41570 Federal Register 

## / Vol. 51, No. 221 / Monday, November 17, 1986 / Rules and Regulations ENVIRONMENTAL PROTECTION AGENCY 40 CFR Part 300 [SW H-FRL-3113-6] Emergency Planning and Community Right to Know Programs AGENCY: U.S. Environmental Protection Agency (EPA). ACTION: Interim final rule. SUMMARY: Section 302 ofthe Superfund Amendments and Reauthorization Act of 1986 (SARA), signed into law on October 17, 1986, requires the Administrator ofEPA to publish a list of extremely hazardous substances within 30 days. The Administrator is also required to simultaneously publish an interim final regulation establishing a threshold planning quantity for each substance on the list and initiate a rulemaking to finalize these regulations. The list and planning quantities trigger emergency planning in States and local communities under SARA. The purpose ofthis rule is to publish the statutorily prescribed list ofextremely hazardous substances and the corresponding threshold planning quantities for those substances. This rule also codifies the reporting and notification requirements under SARA for facilities at which extremely hazardous substances are present. Finally, a companion proposed rule, published elsewhere in today's Federal Register, initiates a rulemaking to revise the list ofsubstances, the threshold planning quantities and reporting regulations. EFFECTIVE DATES: This rule becomes effective on: November 17, 1986. Other dates relevant to this rule include the following:

1. The emergency release notification requirements become effective on November 17, 1986.

2. State emergency response commissions should be established by April 17, 1987.

3.Facility notifications for emergency planning are required by May 17, 1987.

4. State commissions should establish emergency planning districts by July 17, 1987.

5. State Commissions should establish local emergency planning committees by August 17, 1987.

6. Facility notifications to local committees concerning facility representatives are due by September 17, 1987. COMMENTS: Written comments should be submitted on or before January 2, 1987. ADDRESSES: Comments: Written comments should be submitted in triplicate to Preparedness Staff, Superfund Docket Clerk, Attention: Docket Number 300PQ, Superfund Docket Room Lower Garage, U.S. Environmental Protection Agency, Mail Stop WH 548D, 401 M Street SW., Washington, DC 20460.

Docket: Copies ofmaterials relevant to this rulemaking are contained in the Superfund Docket located in Room Lower Garage at the U.S. Environmental Protection Agency, 401 M Street, SW., Washington, DC 20460. The docket is available for inspection by appointment only between the hours of9:00 a.m. and 4:00 p.m. Monday through Friday, excluding federal holidays. The docket phone number is (202) 382-3046. As provided in 40 CFR Part 2, a reasonable fee may be charged for copying services. FOR FURTHER INFORMATION CONTACT: Richard A. Horner, Chemical Engineer, Preparedness Staff, Office ofSolid Waste and Emergency Response, WH548, U.S. Environmental Protection Agency, 401 M Street, SW., Washington, DC 20460, or the Chemical Emergency Preparedness Hotline at 1-800/535-0202, in Washington, DC at 1-202/479-2449 SUPPLEMENTARY INFORMATION: 

### The contents of today's preamble are listed in the following outline: 1.

Introduction A. Statutory Authority B.Background 1.Superfund Amendments and

Reauthorization Act of1986 (SARA) 2.Title III 3.Subtitle A 4. Section 302 11.

Analysis of the Interim Final Rule A. Emergency Planning Program 1.Purpose ofthe List and Threshold

Planning Quantities 2.Responsibilities ofFacilities Under

Subtitle A 3.Applicability 4.Responsibilities ofthe States and Local

Communities Under Title III B.List ofExtremely Hazardous Substances

and Threshold Planning Quantities 1.List ofExtremely Hazardous Spbstances a. Statutory Requirement b. Criteria for the list i.basis for the criteria ii.criteria iii. application ofthe criteria iv.other toxic chemicals c.List of402 Chemicals 2.Threshold Planning Quantities a. Statutory Requirement b. Development ofThreshold Planning

Quantities c.Methodology C.Statutory Requirement ofInterim Final

Rulemaking and Solicitation ofPublic Comment Ill.Relationship to CERCLA

A. Relationship ofTitle III to CERCLA B.Relationship ofThis Rulemaking to the

National Contingency Plan C.Relationshio of This Rule toCERCLA

Reporting Requirements Section 103 IV.Regulatory Analyses A. Regulatory Impact Analysis B.Regulatory Flexibility Analysis C.Paperwork Reduction Act V.Supporting Information

A. List ofSubjects I. Introduction 

### A. Statutory Authority These regulations are issued under Title III ofthe Superfund Amendments and Reauthorization Act of 1986, (Pub. L. 99-499), ("SARA" of"the Act"). Title III ofSARA is known as the Emergency Planning and Community Right-to-know Act of1986. B.Background 1.Superfund Amendments and Reauthorization Act of 1986 (SARA)

On October 17, 1986, the President signed into law the Superfund 

### Amendments and Reauthorization Act of 1986 ("SARA") which revises and extends the authorities established under the Comprehensive 

### Environmental Response, Compensation and Liability Act of1980 ("CERCLA").. Commonly known as "Superfund," CERCLA provides authority for federal cleanup ofabandoned toxic waste sites and response to releases ofhazardous substances. Title IIIofSARA establishes new authorities for emergency planning and preparedness, community right to know reporting, and toxic chemical release reporting. 2. Title III



### TitleIII ofSARA, also known as the "Emergency Planning and Community Right-to-Know Act of 1986", is intended to encourage and support emergency 

### planning efforts at the State and local level and provide residents and local governments with information concerning potential chemical hazards 

### present in their communities.

The emergency planning requirements ofthis Act recognize the need to 

### establish and maintain contingency plans for responding to chemical 

### accidents which can inflict health and environmental damage as well as cause significant disruption within a community.

Title III is organized into three subtitles. Subtitle A, which establishes the framework for local emergency planning, will be described inmore detail in the following section. Subtitle B provides the mechanism for community awareness with respect to hazardous chemicals present in the locality. This information is critical for effective local contingency planning. Subtitle B includes requirements for the submission of material safety data sheets and emergency and hazardous

### Federal Register / Vol. 51, No. 221 / Monday, November 17, 1986 / Rules and Regulations 41571 chemical inventory forms to State and local governments, and the submission of toxic chemical release forms to the States and the Agency. Subtitle C contains general provisions concerning trade secret protection, enforcement, citizen suits, and public availability of information. 3.Subtitle A

Subtitle A ofTitleIII is concerned primarily with emergency planning programs at the State and local levels. Section 301 requires each State to establish an emergency response commission byApril 17, 1987. The State emergency response commission will have several tasks critical to the implementation oflocal contingency planning and response efforts. It will be responsible for establishing emergency planning districts and appointing local emergency planning committees. The Commission will also be responsible for the supervision and coordination ofthe activities ofthe local emergency planning committees.

Section 302 requires the Administrator ofEPA to publish a list of extremely hazardous substances and threshold planning quantities for such substances. Any facility where an extremely hazardous substance is present in an amount in excess ofthe threshold planning quantity is required to notify the State commission by May 17, 1986. Other facilities may also be designated by the Commission or the Governor.

Section 303 governs the development of comprehensive emergency response plans by the local emergency planning committees and provision of facility information to the committee. Section 304 establishes requirements for immediate reporting ofcertain releases ofhazardous substances to the local planning committees and the State emergency response commission, similar to the release reporting provisions under section 103 ofCERCLA. Section 304 also requires follow up reports on the release, its effects, and response actions taken.

Finally, section 305 addresses emergency preparedness and training, with special emphasis on hazardous chemicals. TheAdministrator is also required under section 305 to conduct a review of emergency systems. 4. Section 302



### Section 302 defines the specific list of extremely hazardous substances and requires EPA to publish the list within 30 days after the enactment of SARA. The listofextremely hazardous substances is defined in section 302 as "the list of substances published in November, 1985 by the Administrator in Appendix A of the Chemical Emergency Preparedness Program Interim Guidance". This list was established by EPA to identify chemical substances which could cause serious irreversible health effects from accidential releases.

Section 302 further requires EPA to establish threshold planning quantities for each of the 402 extremely hazardous substances through an interim final regulation. At the same time, EPA must initiate a rulemaking effort to finalize these threshold planning quantities. This threshold planning quantity is the total amount ofany listed extremely hazardous substance present at any one time at a facility, regardless oflocation, number ofcontainers, or storage method, which will trigger the planning notification. Section 302 gives the Administrator broad flexibility in establishing these quantities. IfEPA does not publish interim final rules establishing the threshold planning quantities by thirty days after enactment ofSARA, then the threshold planning quantity becomes two pounds for each extremely hazardous substance.

Under section 302(a)(4) the Administrator may make revisions to the list and threshold planning quantities. Any revisions must take into account the toxicity, reactivity, volatility, dispersibility, combustibility, or flammability ofa substance.

Toxicity must include any short- or long-term effect resulting from a shortterm exposure to the substance in question. Thus, extremely hazardous substances are characterized as those which can cause serious health effects with only a single exposure.

A facility is subject to the emergency planning requirements ofsection 302 if any extremely hazardous substance is present at the facility in a quantity greater than the threshold planning quantity established forthat substance. The Governor or the State emergency response commission may designate additional facilities tobe covered ifsuch designation is made after public notice and opporunity for comment.

Within seven months after enactment ofSARA, May 17, 1987, the owner/ operator ofeach facility subject to the provisions ofsection 302 must notify the State emergency response commission ofthe state in which it is located that it is subject to that Section. After May 17, 1987 an owner/operator must notify the State emergency response commission within sixty days after the facility begins handling an extremely hazardous substance. Failure to comply with these reporting provisions may, under section 325, result in injunctive reliefor the imposition ofa civil penalty in an amount ofup to$25,000 for each day in which the violation continues.

Lastly, the State emergency response commission must provide the Administrator ofEPA with information concerning the notifications received from any facility under section 302.

Today's rule publishes the list of extremely hazardous substances and corresponding threshold planning quantities, as required by section 302. This rule also codifies related statutory reporting requirements applicable to facilities at which extremely hazardous substances are present. Finally, today's rule represents an initiation ofan Agency rulemaking to revise this rule as appropriate in response to public comment. A companion proposed rule, published elsewhere in today's Federal Register, specifically sets out for public comment all aspects ofthis final rule and proposes revisions to the list published today. II. Analysis ofthe Interim Final Rule A. EmergencyPlanning Program The emergency planning program is a first step toward chemical emergency planning for extremely hazardous substances. After the enactment of Superfund, it became apparent that emergency response to accidental releases ofhazardous substances, although vital to the protection of public health and the environment, was not enough protection against the possibility ofthe release ofextremely hazardous substances. Formany chemicals the magnitude ofthe endangerment to surrounding populations upon release is such that it is not sufficient merely to plan for cleanup of spills once they have occurred. Rather, it is important to facilitate emergency planning which can help prevent the accident and to prepare facilities and the surrounding or adjacent community for the contingency ofa release and the resulting emergency response.

Particularly after the Bhopal, India disaster ofDecember, 1984, itbecame clear that substances which are highly acutely toxic and have a high potential for becoming airborne posed a special problem for emergency response. In many cases, by the time any emergency response personnel can arrive on the scene ofa release, the cloud has already done its damage to public health or the environment and dissipated. For such extremely hazardous substances, early comprehensive emergency planning for the possibility ofa release is vital to effective public and environmental protection.

### 41572 Federal Register'/ Vol. 51, No. 221 / Monday, November 17, 1986 /'Rules and Regulations 1. Purpose of the List and Threshold Planning Quantities

The extremely hazardous substances list of 402 substances was developed as part of the Chemical Emergency Preparedness Program (CEPP) and is the result ofover a year ofEPA effort. EPA initiated the CEPP as part of its ongoing preparedness responsibilities for hazardous substance releases under CERCLA and for addressing toxic substances under the Toxic Substances Control Act (TSCA). The program was announced in June, 1985, as part ofthe Agency's Air Toxics Strategy for addressing both continuing and accidental releases oftoxic substances into the air. CEPP is designed to increase public awareness ofchemical hazards in communities and to assist States and communities in developing preparedness programs and response capabilities for releases ofhazardous chemicals into the environment.

The Agency first developed the extremely hazardous substances list as part ofthe CEPP along with guidance materials to aid localities in focusing on these chemicals to address the development ofcommunity emergency response plans. The list and guidance materials (issued November, 1985) were designed to enable a community to obtain information on the location of potential chemical hazards in the community. This information could be used tohelp the community take preventive actions and plan responses to accidental releases ofthese extremely hazardous substances. A notice of availability ofthe CEPP Interim Guidance was published in the Federal Register on December 17, 1985.

Title III ofSARA mandates the type of program advocated by the Agency's CEPP.It requires State and local governments to establish the infrastructure needed to facilitate emergency planning and provides technical support to these programs. It also requires certain facilities to supply the information on chemicals present at the facility which is necessary for contingency planning.

The extremely hazardous substances list and its threshold planning quantities are intended tohelp the local community focus on the chemicals and facilities ofthe most immediate concern from a community emergency planning and response perspective. EPA strongly emphasizes, however, that while the list published today includes many ofthe chemicals which may pose an immediate hazard to a community upon release, it is not to be considered a list ofall chemicals which are hazardous enough to require community emergency response planning. There are tens of thousands ofcompounds and mixtures in commerce in the United States, and in specific circumstances, many ofthem could be considered toxic or otherwise dangerous. The list published today represents only a first step towards development ofan effective emergency response planning effort at tle community level. Without a preliminary list ofthis kind, it would be very difficult for most communities to know where to begin identification ofpotential chemical hazards among the many chemicals present in any locality.

Similarly, the threshold planning quantities are not absolute levels above which the extremely hazardous substances are dangerous and below which they pose no threat at all. Rather, the threshold planning quantities are intended to provide a "first cut" for community emergency response planners where these extremely hazardous substances are present. After identification offacilities at which extremely hazardous substances are present in quantities greater than the threshold planning quantities, the local community will have the basis for further analysis ofthe potential danger posed by these facilities. Also, they will be able to identify other facilities posing potential chemical risks to the locality, and develop contingency plans to protect its citizens from releases of hazardous chemicals. Sections 311 and 312 ofTitle III provide a mechanism through which a community will receive Material Safety Data Sheets and other information on extremely hazardous substances, as well as many other chemicals, from facilities which handle them. A community can then assess and initiate planning activities, ifdesirable, for quantities below the threshold planning quantity.

In addition to the assistance provided by the extremely hazardous substance list and the threshold planning quantities, community emergency response planners will be further aided by the National Response Team's proposed HazardousMaterials EmergencyPlanningGuide which is required under section 303(f) ofTitle Il1. This document will be available for public review and comment in December. A separate notice of availability will be published in the Federal Register at that time. The guidance document will be supplemented in 1987 with a technical publication developed by EPA to assist local emergency planning committees in the technical evaluation ofpotential chemical hazards and the prioritization of sites. 2. Responsibilities ofFacilities Under Subtitle A

Subtitle A established several notification responsibilities for facilities at which hazardous substances are present or from which hazardous substances are released. First, under section 302, each facility where any extremely hazardous substance is present at any one time in a quantity equal to or above the threshold planning quantity established for that substance, must notify the State emergency response commission for the State in which it is located.

This notification must be'provided within seven months after the enactment ofSARA 

### (May 17, 1987] or within 60 days from the time that the facility first becomes subject to the notification requirements in section 302, whichever is later.

Second, under section 303(d), these facilities must also designate a facility representative who will participate in the local emergency planning effort as a facility emergency response coordinator. This designation must be made by September 17, 1987 or 30 days after establishment ofthe local emergency response committee, whichever is earlier. Section 303(d) also requires facilities to provide the committee with information relevant to development or implementation ofthe local emergency response plan.

Section 304 requires notification by a facility at which a hazardous chemical is produced, used, or stored to the local planning committee and the State emergency response commission upon release ofa reportable quantity (RQ) of any extremely hazardous substance or other hazardous substance identified under CERCLA section 101(14). This notification is required even ifa threshold planning quantity of a substance is not present at the facility. Those extremely hazardous substances for which an RQ has not been established under CERCLA are given an RQ ofone pound under section 304 of SARA. These RQ's will be adjusted in later regulation by EPA. Section 304 requires both an immediate release notification to the local committee and State commission and a follow-up report providing additional information on the release, its impacts, and any actions taken in response.

Under section 325, failure to comply with these responsibilities may result in the imposition ofcivil or criminal penalties. States, local governments, and citizens may also bring suit to enforce many sections ofthe Act.

### No. 221 / Monday, November 17, 1986 / Rules and Regulations 41573 3. Applicability

The emergency planning requirements under section 302 are applicable to all facilities which store, manufacture, process, use, or otherwise handle at any time an extremely hazardous substance in an amount above the threshold planning quantity established forthat substance in today's rule. Additionally, after public notice and the opportunity for comment, the Governor may designate other facilities that will be subject to these regulations. "Facility", for the purposes ofTitle III, is defined as "all buildings, equipment, structures, and other stationary items which are located on a single site or on contiguous or adjacent sites and which are owned or operated by the same person (orby any person which controls, is controlled by, or under common control with, such person)."

Forpurposes of emergency release notification, under section 304 "facility" is defined in section 329 to also include transportation vessels or facilities. However, section 304 notification requirements apply only to facilities at which hazardous chemicals are produced, used, or stored and at which there is a release ofan extremely hazardous substance or a CERCLA hazardous substance. 4. Responsibilities ofthe States and Local Communities Under Title III.

Title III also prescribes several requirements with respect to emergency planning for States and localities. First, under section 301(a) the Governor of each State is to appoint, within six months ofthe enactment ofSARA, April 17, 1987, a State emergency response commission or designate a state agency to have this responsibility. Until the Governor appoints such a commission or state agency, responsibilities ofthe Commission under Title III remain with the Governor.

Section 301(b) further provides that the State emergency response commission will be responsible for the establishment ofemergency planning districts in which local emergency : planning committees will be formed. One month after the emergency planning districts are established, the State commission is responsible for appointing the local emergency planning committees.

Under section 301(c) local emergency planning committees will have the initial responsibility for establishing the community emergency response plans specified in section 303; and the ongoing responsibility forupdating, revising, and exercising these plans. B.List of Extremely Hazardous SubstancesandThresholdPlanning Quantities 1. List ofExtremely Hazardous Substances

a. StatutoryRequirement:As stated above, the list ofextremely hazardous substances is defined in section 302 to be the "same as the list ofsubstances published in November 1985 by the Administrator in Appendix A ofthe Chemical Emergency Preparedness Program (CEPP)Interim Guidance." Section 302 requires the EPA to publish the list within 30 days of the enactment ofSARA.

One ofthe goals ofthe CEPPwas to increase community awareness of chemical hazards, specifically acutely toxic chemicals. To satisfy this goal, the Agency developed the toxicity criteria to assist communities in identifying acutely toxic chemicals present in their midst. Through identification ofthese chemicals, communities could establish priorities for developing comprehensive emergency response plans. To further assist the communities, the Agency applied toxicity criteria to develop a representative, but not exhaustive, list ofacutely toxic chemicals. It is this representative list of402 chemicals that is presently designated in section 302 as the list of extremely hazardous substances.

The following sections discuss the criteria for identifying extremely hazardous substances.

b. Criteria forthe List-i.Basis for the Criteria. Considering the large number ofchemicals in commerce and the variable nature oftheir individual. inherent acute toxicities, the Agency assumed for the purposes of the CEPP, that it would be impractical for communities to evaluate all of them. The CEPP list was also based on the assumption that communities would want to focus emergency planning efforts on the most acutely toxic chemicals rather than on nontoxic chemicals or those exhibiting lesser acute toxicity. In an attempt to direct community planning efforts to these chemicals which, because oftheir inherent acute toxicity, are most likely to induce serious acute reactions following short term exposure, the Agency has specified selection criteria that can be applied to toxicity data to identify acutely toxic chemicals (referred to as "extremely hazardous substances" under Title III).

In defining the criteria, the Agency had to identify the health effects of concern and the data to be used. Because there are very few human acute toxicity data, the Agency elected to use 

### acute toxicity data derived from experiments with animals to infer potential for acute toxic effects in humans. The Agency assumed that humans and animals (mammals), on the average, are similar in intrinsic susceptibility to toxic chemicals and that animal data can be used as a surrogate for human data. This assumption forms one basic premise of modern toxicology and is a key component in the regulation oftoxic chemicals.

The Agency chose toutilize data on lethality because itrepresents the most immediate concern in an emergency situation. Additionally, such data can be used as a comparison among many substances whose mechanisms and sites ofaction may be markedly different. Moreover, acute lethality data formany chemicals are the most commonly reported toxicity information and are available in accessible databases. Lethality data from animal toxicity tests are generally expressed as the median lethal concentration (LCa) when the substance has been administered by inhalation or the median lethal dose (LDso) when the substance has been administered orally ordermally. These data represent dose levels or concentrations ofa chemical that resulted inthe death of50 percent ofthe test animals exposed at the indicated dose level.

ii.Criteria. The Agency adopted the specific criteria shown in Table 1 to identify extremely hazardous substances that may present severe health hazards to humans following short term exposure to chemicals during a chemical accident or other emergency. The selection criteria are only screening tools to identify highly acutely toxic chemicals. Under these criteria, a chemical is to be considered a potential acute human toxicant ifanimal test data in any mammalian species are identified with a value less than or equal to that stated for the LC 6 

### orLD 5

### ocriteria for any one ofthree exposure routes.* Extremely hazardous substances are those defined with inhalation LC 50 

### values ofless'than or equal to 0.5 milligrams per liter ofair, dermal LD 5

### o values ofless than or equal to 50 milligrams per kilogram ofbody weight, or oral LD 5

### ovalues ofless than or equal to 25 milligrams per kilogram ofbody weight. The specific values chosen are recognized by the scientific community as indicating a high potential for actute toxicity, and chemicals meeting the toxicity criteria are considered potential .hazards. Federal Register / Vol. 51,

### 41574 Federal Register / Vol. 51, No. 221 / Monday, November 17, 1986 / Rules and Regulations

TABLE 1.-CRITERIA To IDENTIFY ACUTELY Toxic CHEMICALS THAT MAY PRESENT SEVERE HEALTH HAZARDS TO HUMANS EXPOSED DURING A CHEMICAL ACCIDENT OR OTHER EMERGENCY Route of Exposure Acute Tosicity Measure Value Inhalation

. Median Lethal Concentration in Air (LC.)

.......... Less than or equal to 0.5 milligrams per liter of air. Dermal ............ Median Lethal Dose ILDo)
................................................... Less than or equal to 50 milligrams per kilogram of body weight Oral ................. Median Lethal Dose (LD,)

............. . . Less than or equal to 25 milligrams per kilogram of body weight. The route by which the test animals absorbed the chemical, i.e., by breathing it in air (inhalation), by absorbing it through the skin (dermal). or byingestion (oral).

= LC.: The concentration of the chemical in air at which 50 percent of the test animals died. LD: The dose which killed 50 percent of the test animals. In the absence of LCm or LD. data, LCo or LDo data should be used. LC : Lethal Concentration Low, the lowest concentration in air at which any test animals died. LDuo:Lethal Dose Low, the lowest dose at which any test animals died.

The primary route ofexposure with which the Agency is concerned is inhalation. In using data on oral and dermal acute lethality to infer concern about inhalation toxicity, the Agency was not as much concerned with these specific routes ofexposure in humans as with identifying compounds with inherent high potential for acute toxicity.

Even with the amount ofanimal data that are available, there exist chemicals for which there are no standard acute toxicity test data. In those cases where toxicity testing has not determined an LDo or LCso, the Agency selected an alternative measure ofacute toxicity: The lowest dose or concentration at which some animals died following exposure (LDLo or LCLo). These values may be more variable than those provided from median lethality tests, but for the purposes ofscreening large numbers of chemicals, it was deemed necessary to provide a second level screening tool inpreference to missing potentially toxic chemicals because they were not adequately tested.

The Agency chose to use data from the most sensitive mammalian species instead ofdata from only one specific species because at present it is not possible to predict which species is the appropriate surrogate for humans for a given chemical.

Acute inhalation toxicity testing depends upon the concentration ofthe chemical in air and the duration ofthe exposure periods. Because ofthis, LC5o and LCL values for a chemical may vary depending uponhow long the animals were exposed to the substance. The Agency chose also to make maximum use ofavailable acute toxicity data to screen for acutely toxic chemicals and, therefore, chose to use LC5 o and LCo values with exposure periods up to 8 hours or with no reported exposure period. The Agency recognizes that this may be a conservative approach.

The screening criteria selected by the Agency are basically consistent with internationally accepted criteria used by both the European Economic Community and the World Bank. However, the Agency has adopted a more conservative approach by modifying the selection criteria in three ways:

1. Lethality data are not limited to data on rats, but include data on the most sensitive mammalian species tested;

2. LCso data with inhalation exposure periods up to 8 hours are included as compared to using only data from 4 hour exposure tests; and

3. LDto and LCL data are used when LDso or LC 5odata are unavailable. iii. Application of the Criteria. The screening criteria can be applied to any experimental data or data base on chemical substances that includes acute animal toxicity data. The Agency applied the criteria to a specific toxicity data base, the RegistryofToxic Effects ofChemicalSubstances(RTECS), maintained by the National Institute of Occupational Safety and Health (NIOSH). The RTECS data base was used as the principal source of toxicity data for identifying acutely toxic chemicals because it represents the most comprehensive repository ofacute toxicity information available withbasic toxicity information and other data on more than 79,000 chemicals. It is widely accepted and used as a toxicity data source by industry and regulatory agencies alike. Although RTECS is not formally peer-reviewed, the data presented are from scientific literature which has been edited by the scientific community before publication. The Agency recognizes the limitation associated with the lack of peer-review, but for the purposes ofscreening acute toxicity data, RTECS represents the single best source ofinformation.

In addition, the Agency selected only those chemicals considered tobe in current production by reviewing the non-confidential 1977 Toxic Substances Control Act (TSCA) Inventory and the current EPA list ofactive pesticide ingredients. The TSCA Inventory is a listing ofchemicals in production at the time the Inventory was compiled. Chemicals entering commerce since 1977 through the Premanufacturing Notice (PMN) review process under Section 5 of TSCA also were screened for acute toxicity data and compared to the criteria for possible inclusion on the list.

Radioactive materials and chemical substances in research and development stages, as well as those manufactured, processed, or distributed in commerce for use as food additives, drugs, or cosmetics are not listed in the TSCA inventory and hence, were not considered. Ifresearch chemicals that meet the criteria are produced for commercial use under TSCA or for pesticide use under the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA), EPA will identify such chemicals through its PMN review" program or pesticide registration program and list them under section 302 in future rulemakings. The Agency solicits comments concerning the addition ofchemicals in food, drugs, cosmetics and radioactive materials to the list ofextremely hazardous substances.

iv. Other Toxic Chemicals. Chemicals with acute lethality values not meeting the criteria values discussed in the previous section are not necessarily safe. In fact, many may be toxic to humans and may represent hazards to the community in accidental release situations. The Agency identified some ofthese potentially toxic chemicals using criteria based on factors such as high production volume, acute lethality, and known risk, as indicated by the fact that these chemicals have caused death and injury in accidents.

c.List of402 Chemicals:Application ofthe criteria discussed above to the RTECS data base and subsequent review ofthe TSCA Inventory and the FIFRA active pesticide ingredient list led to the identification of378 chemicals. In addition, one chemical meeting the toxicity criteria was identified from the Premanufacture Notices. Twenty-three additional chemicals were identified as potentially hazardous, using the criteria described above for "other toxic chemicals". These chemicals were added to the list on the basis oftoxicity, high production volume, and known risk. The list of402 extremely hazardous substances is set forth in Appendices D and E.

The Agency recognizes that the criteria used to establish the extremely hazardous substance list address only lethality, and do not account for all effects that may be associated with acute exposure to chemicals. Criteria are being considered for other health

### No. 221 / Monday, November 17, 1986 / Rules and Regulations 41575 effects after acute exposures to toxic chemicals. In addition, section 302 requires the Agency to also consider long-term health effects resulting from short-term exposures to these chemicals. The Agency does not presently have sufficient data on such effects and requests data from commenters on chronic effects from short-term exposures and comments on how these effects should be incorporated into criteria forrevisions to the list. The Agency also requests any other comments on the appropriate criteria for additions to or deletions from the list.

A companion proposed rule, published elsewhere in today's Federal Register, specifically proposes the addition and deletion of certain substances from Appendices D and E. 2. Threshold Planning Quantities

A. StatutoryRequirement:Under section 302 the Agency is required to develop threshold planning quantities for each ofthe 402 chemicals on the list ofextremely hazardous substances and publish interim final quantities simultaneously with publication ofthe list. The threshold planning quantity is used to trigger reporting by facilities to the State emergency response commission. Any facility that has one or more ofthe chemicals on the list of extremely hazardous substances in quantities equal to or greater than the threshold planning quantity must - provide notification to State emergency response commissions by April 17, 1987.

Section 302 specifies that the planning quantities may be based upon classes or categories ofchemicals. If the Agency fails to develop threshold planning quantities for the chemicals on the extremely hazardous substances list, a quantity oftwo pounds is automatically established for each chemical.'

b. DevelopmentofThresholdPlanning Quantities: Formany substances the potential for a serious accidental release resulting from an on-site quantity of two pounds is extremely remote. Therefore, threshold planning quantities of two pounds for all ofthe extremely hazardous chemicals could result in many unnecessary notifications, diverting the attention ofemergency planners from facilities which may be of higher concern.

Because the Agency believes that the two pound threshold planning quantity for all 402 substances would overwhelm local emergency planning efforts and would not relate to the endangerment posed by individual substances, it is today establishing threshold planning quantities in lieu ofthe statutory level. The threshold planning quantities are designed to help State and local officials 

### identify those sites where there is a greater potential forharm to the surrounding community ifa release were to occur, thereby focusing resources on the priority emergency planning problems.

c.Methodology:The Agency considered four alternative approaches for development ofthe threshold planning quantities:

Approach 1.SpecificQuantity Prediction. Under this approach the Agency would determine the specific quantity of each chemical that, if accidentally released, would result in significant acute health effects at a fixed distance from the release site.

Approach 2.Dispersion/Toxicity RankingMethod.Under this approach the Agency would assign chemicals to threshold planning quantity categories based on an index that accounts for the toxicity, the potential to become airborne, and the downwind dispersion ofeach chemical in an accidental release.

Approach 3.ToxicityRanking Method.Under this alternative the Agency would assign categories of threshold planning quantities based solely on a toxicity index.

Approach 4. Two PoundQuantity for All Chemicals.Under this option, the default quantity oftwo (2)pounds would be used.

After considerable analysis, the Agency has chosen to develop threshold planning quantities using Approach 2. 

### The methodology used in each approach is presented below alongwith a discussion ofthe approaches and the reasons why the Agency believes Approach 2 is the most appropriate for establishing threshold planning quantities. For details on the methodologies employed, refer to the Threshold Planning Quantities Technical Support Document, which is available in the public docket for this rule. Comments are solicited on the various approaches and the methodologies. Information on alternative approaches also is being sought by the Agency for consideration in the development ofa revised final rule. Methodology for Approach 1-Specific Quantity Prediction

The methodology forthis approach is derived from the site specific guidance developed forthe CEPP Interim Guidance. The methodology consists of initially determining a maximum shortterm exposure concentration level in air ("level ofconcern") for each chemical thatwould not lead to serious health effects. The quantity ofeach chemical thatwould have to be released to the air to reach the "level ofconcern" is estimated using techniques for atmospheric dispersion and assessing physical/chemical properties.

This approach is a complex process designed to provide a specific threshold planning quantity for each of the 402 extremely hazardous substances. This section discusses the derivation of levels of concern, assumptions, concerning distance and release circumstances, and the dispersion modeling techniques used in the development ofthe threshold planning quantities under this approach.

To perform this analysis, a level of concern must be selected for each chemical, a representative distance from the release site to the exposed population must be determined, and the conditions and modeling techniques for release and dispersion must be selected for each chemical.

A level ofconcern was considered to be the maximum concentration ofan extremely hazardous substance in air that will not cause serious irreversible health effects in the general population when exposed to the substance for relatively short duration. At present, no such exposure levels have been established specifically forthe general public. The National Academy of Sciences and others have been developing guidelines for estimating such levels for toxic chemicals. However, at this time, values for only a few chemicals have been established.

In lieu ofa value developed for the general public, the Agency has identified a surrogate measure ofsuch an exposure level. This approximation is the Immediately Dangerous to Life and Health (IDLH) level which is available for 92 ofthe chemicals on the list of extremely hazardous substances. This level established by the National Institute for Occupational Safety and Health (NIOSH) represents the maximum concentration ofa substance in air to which a healthy worker can be exposed for 30 minutes and escape without suffering irreversible health effects or impairing symptoms.

The Agency recognizes that the IDLH may have some limitations as a measure for protecting the general population. First, the IDLH is based upon the response ofa healthy, male worker population and does not take into account exposure ofmore sensitive individuals such as the elderly, children, or people with various health problems. Second, the IDLH is based upon a maximum 30 minute exposure period which may not be realistic for accidental airborne releases. Third, the IDLH may not indicate the Federal Register / Vol. 51, v

### 41576 Federal Register 

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# / Rules and Regulations concentration that could result in serious but reversible injury. Based on these considerations, the development ofmore appropriate chemical emergency exposure levels forthe general public has been identified as a high priority for the Agency.

However, the IDLH value, or an estimation ofthis value for substances that do not have a published IDLH, appears at present to be the best approximation ofa level ofconcern available for planning purposes. IDLH values for those substances with published values were used in the calculations for establishing threshold planning quantities.

Levels of concern were estimated from acute animal toxicity test data for the substances that did not have published IDLH values.

In these instances, the concentration used to establish threshold planning quantities is determined from LCso LCLo. LDso, or LDL data. The following equations show how these data are converted to air concentrations to approximate the IDLH level: (1) Estimated level ofconcern = LCo X 0.1; (2) estimated level ofconcern = LCLo; (3) estimated level ofconcern LDso 

### x 0.01; and (4) estimated level of concern = LDLO x 0.1. As new information and methodologies become available in the future, the level of concern and the value derived for chemicals on the list should be reevaluated.

A second critical input to the analysis is the distance from the source of the release to the exposed population. For the purposes ofestablishing planning quantities, the Agency chose a distance of100 meters (330 feet) to represent the distance from a source inside a chemical facility to the point where the community might be exposed. The Agency believes that this distance is representative ofthe point at which the community might first be impacted for most situations. The Agency recognizes that itmay be shorter than that found at large manufacturing facilities, (particularly those that also have a "buffer zone") or farther than that found at facilities located within urban centers. For example, an informal survey ofchemical facilities in the Kanawha Valley (West Virginia) by the National Institute for Chemical Studies in Charleston, West Virginia, showed that the distances between storage vessels and residential housing may be as close as 25 feet (Meyer, 1986). However, there are limitations associated with atmospheric dispersion modeling techniques at distances less than 100 meters. Additionally, the Netherlands Safety Report Legislation 

### indicates that releases that travel more than 100 meters are judged to be major accidents (Van Deputte, 1982).

Once the level of concern for each chemical was determined and a fixed distance was established, dispersion modeling techniques were used to calculate the quantity ofairborne chemical required to generate the level of concern at 100 meters. Although techniques have long been available and used to address air pollution and nuclear fallout, the uses ofdispersion modeling techniques to simulate the behavior ofchemicals released under accidental conditions for very short time spans are largely still under development. TheAgency's comparison ofthe several available dispersion modeling techniques is described in the Threshold Planning Quantities Technical Support Document available in thepublic docket for this rule.

A third critical aspect in the development ofthe methodology Is the assumption made concerning the release ofthe chemical. An accidental release could be caused by a number ofevents such as a process upset (e.g.runaway reactions, temperature orpressure excursions leading to release), equipment failures (such as pipe rupture, equipment seal failure, valve leaks), handling accidents (such as overfilling containers and puncturing drums with a forklift), or fires and explosions that affect nearby containers or storage vessels oftoxic substances. The release scenario generally determines the nature ofthe emission source and source strength which are critical to the dispersion consequences. Therefore analysis ofpotential release scenarios in complex and critical to the outcome.

The chemicals on the listwere segregated by ambient physical state and grouped as gas, liquid or solid. Gases and liquids represent abouthalf ofthe 402 chemicals on the list; the remainder are solids. In analyzing the chemicals released, scenarios were developed as follows: Gases were assumed to be stored under pressure such that if aleak, rupture or process upset occurred, a relief valve would open ora rupture would occur, causing a gas jet to be released. Liquids were assumed to be spilled on the ground at ambient conditions and allowed to volatilize. Liquified gases were also evaluated. Because neither ofthe two release scenarios above are appropriate for solids unless the solids are handled in molten orvaporized state, solids were assumed to be dispersed in powered form as an aerosol by some mechanical means (e.g. filtration unit failure, dust explosion, or other explosion) because this represents a more realistic emergency release scenario. The sublimation of a solid as a result of a spillwas considered and rejected because volatilization ofsolids is so slow that it does not present an emergency release hazard. Advantages and Limitations of Approach 1

Approach 1 was designed to determine a specific individual quantity for each chemical for purposes of emergency planning. The quantities calculated using this approach ranged from below one pound (for certain extremely toxic gases) to millions of pounds (for relatively involatile substances). The apparent rigor ofthe methodology, however, is somewhat misleading due to the uncertainty in the level ofconcern (IDLH), the release scenarios selected, the source strength inputs, and the ability tomodel both the release and dispersion. Also, most dispersion techniques are compatible with only a limited number ofthe many potential release events that could occur, the Agency has no data to show whether these events represent typical orworst case situations.

Assumptions used with the modeling techniques also cause wide variations in the results. In the case of gases, variations ofseveral orders of magnitude are possible depending on the pressure at which the gas is stored, size ofthe release opening, density and velocity ofthe escaping gas. An accidental release is an extremely dynamic event. The dynamics associated with accidental releases are not considered in this analysis since little information is available for the potential release conditions likely for the chemicals on the list.

Finally, even ifthe Agency was fully confident ofthe release scenario, emission source modeling and dispersion techniques, a number ofkey parameters in the analysis are sitespecific. These parameters include the distance from the source to the community or fenceline, the way in which the chemical is actually handled at the facility (e.g., at high temperatures and pressures, refrigerated, etc.), the topography of the area around the site, and prevailing meteorological conditions which can cause wide variation in the dispersion of airborne chemicals. In the absence ofa valid empirical data base, the Agency must make assumptions concerning "reasonable" or "credible" characteristics of these site-specific factors. These assumptions are influenced by modeling capabilities as well as general knowledge ofchemical manufacturing and processing 

### 41576 Federal Register / Vol. 51, No. 221 / Monday, November 17, 1986 / Rules and Regulations

### Federal Register / Vol. 51, No. 221 / Monday, November 17, 1986 / Rules and Regulations 41577 operations and greatly affect the accuracy ofresults.

For these reasons, the Agency has not used this approach to establish the threshold planning quantities in today's rule. However, because the selected methodology (Approach 2) relies on Approach I technical analyses, the Agency seeks comments and suggestions on the methodology used here for revision prior to issuance ofa revised final rule. Approach 2-Dispersion/Toxicity Ranking Method

The methodology forthis approach makes use ofthe same technical analyses used in Approach 1but uses them only to produce a ranking ofthe chemicals according to their potential to become airborne, dispersion potential and toxicological properties. This approach provides a basis forrelative measures of concern rather than absolute values. Under Approach 2, the levels ofconcern are used as an index of toxicity, and physical state and volatility are used to assess their dispersion potential. The two indices are combined to produce an overall risk score or "ranking factor". Once the chemicals have been ranked, categories ofquantity are assigned based on their relative ranking. The lowest rank (highestrisk) are assigned low quantities and the highest rank (lowest risk) are assigned higher quantities.

To achieve this, the list ofchemicals is again segregated by ambient physical state such asgas, liquid or solid. An index value is obtained by assuming that the level ofconcern is divided by the factor V, which represents the extent to which the material can become airborne and dispersed: Index=Level of Concern/V where V is the extent to which the chemical can become airborne. Vis assumed to be I forchemicals that are gaseous at ambient conditions and for solids in powder form (e.g., flour, talc), that is, in an accidental release all ofthe chemical could become airborne. For liquids, V represents the extent of volatilization ofa spilled quantity of liquid and is estimated by knowing the chemical's molecular weight and vapor pressure. See Attachment I at the end of this preamble for a derivation ofthe 

### equations used to estimate V.

Once all the chemicals have been ranked, quantities are assigned to groups ofchemicals on the list.In the Agency's evaluation ofall ofthe chemicals, only nickel carbonyl is assigned a quantity of"any amount" and mustbe reported in any quantity because of its extremely high acute toxicity. Other chemicals with a low index factor, based on the Agency's technical review, are assigned a quantity oftwo pounds, the default quantity given by the Congress. With the exception ofnickel carbonyl, it is believed that the two-pound quantity represents a reasonable lower limit for the most extremely hazardous substances on the list. Chemicals with the highest index factors (orrank) were assigned a threshold planning quantity of10,000 pounds. This ensures that any facility with as much as a tank wagon or truck load of any extremely hazardous substances would be required to notify the State commission. Between the limits of two pounds and 10,000 pounds, chemicals were assigned to intermediate categories of100, 500 or 1,000 pounds based on order of magnitude ranges in the index values. The selection ofthe intermediate categories was based on standard container sizes between two and 10,000 pounds. In summary, the allocations were as follows:

Index value: Mesholdquantity({b) <Ix10 "2 . . . . . . . . . . . . . . . . . . . . 

### 2 >10- 2to <10- k ................................... 100 >10- 1 to <1...................... I ............... 500 

### >1 to <10 ............................................ 1,000 >10........................................................ 10,000 Advantages and Limitations of Approach 2

The methods utilized in constructing the exposure and toxicity indices for Approach 2 are based upon, and therefore share the limitations ofthe methodologies utilized in Approach 1. In particular, NIOSH's IDLH or the Agency's estimated level ofconcern is an imperfect measure or an approximation of acute toxicity for emergency release situations involving the general public. In addition, the dispersion index is based upon specific release event assumptions. Changes in such assumptions could lead to changes in the rankings to a certain degree. Nevertheless, the Agency believes that this approach provides a consistent relative ranking ofthe extremely hazardous substances.

The selection oftheparticular cutoff values forthe quantities is based wholly on the relative ranking among all ofthe substances on the list. Since this is a relative ranking scheme, there is no precision associated with the numbers and they should not be construed as "safe" levels. Because the Agency cannot evaluate every release scenario, itis possible that a serious event could occur with any quantity lower than the threshold planning quantity given by this approach. Conversely, some chemicals may be unlikely to cause serious events even at quantities significantly above their thresholds. However, the Agency believes that this approach yields threshold planning quantities which will focus initial community planning on those situations which present the greatest risk. Methodology forApproach 3--Toxicity Ranking Method

This approach is similar toApproach 2 except that the chemicals on the list of extremely hazardous substances are ranked using only their level of concern as an index.As in Approach 2, the chemicals are assigned quantities ranging from any quantity for nickel carbonyl to 10,000 pounds with intermediate categories of100, 500, and 1,000 pounds based upon a ranking of level ofconcern values. Advantages and Limitations of Approach 3

By ignoring the potential for the chemical to become airborne, this approach simplifies the analysis but it may also distort local planning priorities. Although the Agency cannot assess all ofthe ways in which releases can occur, it is clear that physical state and vapor pressure greatly influence how much ofthe chemical actually gets into the air. Therefore, the Agency believes that consideration ofthe potential should be included in the development ofa threshold planning quantity. Approach 4-Default to 2Pounds

Under this approach, EPA could take no action and allow the statutory thresholds to become effective.

Advantages and Limitations of Approach 4

A two pound quantity for each chemical is simple and straight-forward and ensures notification by facilities handling those chemicals that are deemed extremely hazardous in nature. However, it again ignores the potential for the chemical to actually become airborne, distorts local planning priorities and may cause local planning authorities tobe overburdened by unnecessary notifications. Conclusions

The Agency believes that Approach 2 is most appropriate for development of the threshold planning quantities because the quantities developed depend primarily on the toxicity ofthe chemical (level ofconcern) and degree

### 41578 Federal Register / Vol. 51, No. 221 

## / Monday, November 17, 1986 / Rules and Regulations
to which the chemical will become airborne; factors which are very important in deciding which chemicals are the most important from an emergency planning standpoint. The potential for the chemicals to become airborne is not considered in Approach 3.Although Approach Ialso addresses these factors, the apparent rigor of this methodology is not supported by the uncertainty ofthe assumptions and the models which must be applied. Therefore, the planning quantities derived from Approach 1suggest a level ofaccuracy orprecision that cannot reasonably be relied upon.

Technical support documents, which contain additional information on the approaches presented here and the outcome of applying the approaches, are available in the public docket.A list of these documents is set forth in Attachment II. Approach Iprovides a much broader range (from less than one pound to over one million pounds, depending upon the assumptions and models used) than the other approaches. The Threshold Planning Quantity Technical Support Document includes the results of applying Approach 1,using varying release scenarios and assumptions, for a representative group ofchemicals. Approaches 2and 3result in a narrower range, with five planning quantity categories, and "any quantity" planning quantity fornicket carbonyl. Ofthese two latter approaches, only Approach 2considers the degree to which the chemical will become airborne.

The Agency believes that limited State and local resources should be focused on those substances that potentially will cause the greatest harm should an accidental release occur.The quantities developed in Approach 2 meet the objective such that those that are most likely to cause serious problems (extremely toxic gases, solids likely to be readily dispersed, or highly volatile liquids) have lower quantities that those that might be toxicbut are not likely to be released to the air.

The Agency applied the ranking methodology described in Approach 2to the 402 extremely hazardous substances. Recognizing that a strictly mechanical application ofthis approach could lead to errors based on specific characteristics ofindividual chemicals, the Agency then subjected each chemical to a limited additional review to evaluate the technical reasonableness ofthe assignments. The threshold planning quantity allocations determined by the ranking methodology were examined and where appropriate changes tohigher or lower threshold classifications were made based upon other toxicity data, rapid absorption chemical reactivity, specific handling, formulation, and use considerations and related factors. For example, sarin and tabun, which were assigned to the 100 pound category by the methodology applied, were assigned to the two pound category because information on their toxicity suggested that they may be even more toxic under conditions ofan accidental release than is indicated by the estimated level ofconcern. Thirty chemicals were reassigned based on this review. The rationale for each such decision is being included in thepublic docket for this rulemaking. Finally one chemical, nickel carbonyl, had a ranking value so low the Agency decided that any quantity could be a potential problem. The threshold for this chemical was therefore set at "any quantity".

Further, in the case ofApproach 2, it was decided that ifa chemical in solid form isnot handled or stored as a powder at a site and it is not reactive with air or water to become airborne or to form airborne toxic products orbyproducts (e.g., sodium cyanide), then it would be assigned a quantity of 10,000 lb. Although the Agency cannot identify which chemicals are stored orhandled in powder form, it has identified 15 substances that are reactive with water or air which cannot be assigned a threshold planning quantity of10,000 pounds regardless oftheir physical form. These substances are identified in the list ofextremely hazardous substances and are discussed in the Technical Support Document on Reactive Solids, which is available in the public docket for this rule. The Agency solicits comments on whether nonreactive solids not handled as a powder should be deleted fromthe list ofextremely hazardous substances, instead of assigning a default value of10,000 pounds.

Many of the extremely hazardous chemicals aretransported, used and stored in formulated products, which contain mixtures ofchemicals. The potential hazard associated with extremely hazardous chemicals in mixtures depends on the concentration ofthe material as well as many factors specific to the composition ofthe formulations. The Agency has noted in the threshold planning quantities list, one case where it believes that common commercial formulations should not be considered for the purpose of notification under this regulation. In the case ofhydrogen peroxide, the Agency does not believe that there is cause for concern with aqueous concentrations of equal to or less than 52percent and designates this exception on the list of extremely hazardous substances. The Agency solicits comments on this concept, which is discussed in more detail in the technical document which addresses respcnse to public comments on the CEPP interim guidance.

In all other cases, and in the absence ofmore specific information, the Agency believes thatmixtures offormulations containing one (1)percent or more ofan extremely hazardous substance should be evaluated fornotification purposes. This means a mixture containing less than 1% ofan extremely hazardous substance need not be factored into the calculation ofthe threshold planning quantity. The rationale for the 1% rule is the low probability ofthe release of such a mixture delivering the threshold planning quantity ofthe extremely hazardous substance to the environment. OSHA has selected this cutoff value of its Hazard Communication Rule (29 CFR 1900.1200) for all hazards except carcinogens.

In evaluating whether to notify for mixtures, facility owners or operators should compare the appropriate threshold quantity with the weight ofthe extremely hazardous substance in the mixture. For example, ifthe threshold for a given chemical on the list is 100 pounds and that chemical is 20 percent by weight ofa mixture, notification would be necessary if500 pounds or more ofthat mixture is present at a facility. Note, however, that no such deminimis exemption exists for emergency release reporting under section 304.

The Agency seeks comments on the methodology chosen to determine threshold planning quantities. Specifically, the Agency seeks comments on: -Whether the ranking methodology

selected (Approach 2)is appropriate for the categorization ofthe extremely hazardous substances by threshold quantity, and ifnot,which other approach might be preferable and why. -Whether the specific toxicity and

exposure indices, the IDLH (or calculated level ofconcern), and V, respectively, chosen are appropriate for constructing the index. -Whether the Agency has set the

threshold planning quantities for the extremely hazardous chemicals (ranging from any to 10,000 pounds) too high or too low in order to provide state and local planning authorities the information with which to effectively begin their emergency planning activities.

### No. 221 / Monday, November 17, 1986 / Rules and Regulations 41579 -Whether it is appropriate to establish

a percentage below which extremely hazardous components ofmixtures do not have to be considered and, ifso, whether one percent or some other percentage is an appropriate cutoff level. -Whether the chemical specific

quantity adjustments to the determinations made under Approach 2 properly considered the individual characteristics ofthe adjusted chemicals, and whether other chemicals on the list also require quantity adjustments. -Whether assigning threshold planning

quantities of10,000 pounds to nonpowder, non-reactive solids adequately addresses concerns for these materials. -Whether it is appropriate not to

consider certain common commercial formulations for purposes of notification under this regulation and whether the designated reporting limit ofgreater than 52 percent aqueous hydrogen peroxide is appropriate. C.StatutoryRequirementof Interim Final RulemakingandSolicitationof PublicComment

Section 302 ofTitle III ofSARA requires the Administrator to publish a list of extremely hazardous substances within 30 days ofenactment. The initial list is required to be the same as the list ofsubstances published in November, 1985 by the Administrator in Appendix A ofthe Chemical Preparedness Program Interim Guidance. In addition, section 302 specifically requires the Administrator topublish interim final regulations establishing a threshold planning quantity for each substance on the list, and to initiate a rulemaking to revise these threshold planning quantities. Failure to establish the threshold planning quantities results in statutorily established threshold planning quantities of two pounds.

Although this rule is statutorily required to be effective immediately, the Agency is also, soliciting comment on all aspects oftoday's rule. In a companion proposed rule published elsewhere in today's Federal Register, the Agency is specifically initiating a rulemaking to revise today's rule as appropriate in response to public comment.

In addition, certain portions oftoday's rule have previously received the benefit ofpublic scrutiny and comment. At the time the list of402 extremely hazardous substances was first published by the Agency, it was part ofa voluntary .program to encourage localities to begin the process ofplanning for chemical contingencies occurring in their communities. Appendix A ofthe Chemical Emergency Preparedness Program Interim Guidance document was made public in November, 1985. That guidance identified those substances forwhich it was not enough to merely focus attention on cleanup of releases. Rather, because these substances, upon release, posed immediate and serious threats to the surrounding community, emergency planning and release prevention was necessary for effective protection of human health and the environment.

At the time ofpublication, comments were requested on the methodology for establishing the CEPP list. EPA received comments on the toxicity data used for specific chemicals, and revisions based on those comments are discussed in section II.B.2.c. above. A summary of these comments and the Agency's response has been incorporated into the public docket for this rule.

Today we are requesting comments on all aspects ofthis rule and are specifically soliciting comments on the criteria for establishing the extremely hazardous substance list, the threshold planning quantities and the methodologies for establishment ofthe quantities.

Comments must be submitted within 45 days ofthe publication ofthis regulation in the Federal Register. Upon completion ofthe 45 day comment period, the threshold planning quantities and supporting regulations will be finalized in a subsequent final rule as required by section 302, using the comments received as guidance in revision of this interim final rule. The comment period is shorter than that provided formany Agency rules, but is essential in order to allow a final rule to be published before May 17, 1987, when facility notifications are due. III. Relationship to CERCLA A. RelationshipofTitleIII to CERCLA

Title III is a free-standing Title within SARA and thus is separate from, though closely related to, CERCLA. Because the Agency's CEPP effort was developed originally under CERCLA and because Title III emergency response and planning are closely linked to the hazardous substance release response program under CERCLA, the authorities and requirements created by Title III will be largely incorporated into the existing National Contingency Plan, established under CERCLA section 105. B.RelationshipofThisRulemaking to theNationalContingency Plan This rulemaking is a new Subpart I within the existing National Oil and Hazardous Substances Pollution Contingency Plan (NCP (40 CFR 300). The NCP provides for an efficient, coordinated and effective response to discharges ofoil and releases of hazardous substances, pollutants and contaminants in accordance with the authorities ofCERCLA and section 311 of the Clean Water Act. The NCP establishes the national organization, policy and procedures for preparedness and response to environmental incidents. The Agency is now in the process ofdeveloping a rulemaking to comprehensively revise the NCP to incorporate other changes under SARA and will evaluate placement ofTitle Ill rules. C.RelationshipofthisRule to CERCLA Section 103 ReportingRequirements

Under section 103 ofCERCLA, .any person in charge ofa facility at which there is a release ofa hazardous substance as defined in CERCLA section 101(14) equal to or in excess of its reportable quantity must report immediately to the National Response Center. The National Response Center will then alert the appropriate federal emergency response personnel of the release. This notification includes transportation incidents as well as fixed facility emergencies.

The notification to the State emergency response commission under section 302 is not triggered by a release incident but rather by the presence of certain quantities an extremely hazardous substance at a facility. No release or event of any kind is required for a section 302 report. This notification is an initial action in a process that culminates in the development of community emergency response plans. Section 304 in contrast, establishes reporting requirements similar to CERCLA Section 103 release reporting. However, instead ofrequiring notification only to the National Response Center when certain quantities ofcertain chemicals are released, facilities must under section 304 also notify State and local emergency response officials ofthese releases.

A comparison ofthe reportable quantities established by the Agency under CERCLA for the purposes of emergency response with the threshold planning quantities in today's rule indicates that the quantities established under these lists are not entirely comparable. In fact, 26 adjusted reportable quantities were higher than the threshold planning quantities for the same extremely hazardous substance. As a result, emergency planning would be required for an amount on the plant 

### -Federal Register / Vol. 51,

### 41.1;80 Federal Revister / Vol. 51. No. 221 

### / Monday, November 17, 1986 / Rules and Regulations site which, ifentirely released, would not require a reporting to the National Response Center or to the State commission. This has occurred as a result ofthe use of two different approaches for establishing reportable quantities and threshold planning quantities. Unlike CERCLA reportable quantities, the threshold planning quantities are based upon exposure potential. CERCLA reportable quantities are based solely on the intrinsic chemical and physical properties, or 

### toxicity, of ahazardous substance.

During rulemakings to revise the final rule and to adjust reportable quantities under CERCLA and Title 11,the Agency intends to evaluate and address, as appropriate, inconsistencies between the two methodologies, the underlying data base ofeach, and the resulting quantities. 

### IV. Regulatory Analyses A.RegulatoryImpactAnalysis

Rulemaking protocol under Executive Order 12291 requires that regulations be classified as "major" or "non-major" for purposes ofreview by the Office of Management and Budget.According to E. 0. 12291, major rules are regulations that are likely to result in (1)

### An annual adverse (cost) effect on the economy of $100 million, (2)a major increase in costs or prices for consumers, individual industries, federal, state, or local government, or geographical regions, or (3)

### significant adverse effects on competition, employment, investment, productivity, innovation, or the ability of United States based enterprises in domestic or export markets.

Because this rulewas required by statute to be published in 30 days no further economic or regulatory impact analysis could be conducted by the Agency priorto the publication ofthis interim final rule. However, analyses of economic and regulatory impact will be completed for the revised final rule. 

### B.RegulatoryFlexibility Analysis The Regulatory Flexibility Act of1980 requires that an analysis be performed for all rules that are likely to have a "significant impact on a substantial number ofsmall entities." Based on the limited time available, the Agency did not conduct a formal flexibility analysis. However, the Agency has considered the impact on small entities and does 

### not believe that this rule will have significant impact on a substantial number ofsmall entities. 

### C.Paperwork ReductionAct The reporting and notification requirements contained in this rule have been approved by the Office of Management and Budget (OMB) under the provisions ofthe Paperwork Reduction Act of1980, 44 U.S.C. 3501 et 

### seq. and have been assigned OMB control number 2050-0046. 

### V. Supporting Information A. ListofSubjects Chemicals, hazardous substances, extremely hazardous substances, intergovernmental relations, community right-to-know, natural resources, Superfund, Superfund. Amendments and Reauthorization Act, air pollution control, chemical accident prevention, chemical emergency preparedness, , threshold planning quantity, community emergency response plan, contingency planning, reporting and recordkeeping requirements.

Dated: November 12, 1986. Lee M. Thomas, 

### Administrator. Attachment I TechnicalDetails forApproach2 Determinationofthe Threshold PlanningQuantity

In Approach 2,the index for ranking the chemicals on the list is: Index=Level ofConcern/V where Vrepresents the extent to which the chemical can become airborne and dispensed. Forgases and solids Vequals one, meaning all ofthe chemical once released can be potentially airborne. For liquids, V is calculated by estimating the rate ofvolatilization (mass vaporized per time) permass ofliquid spilled. The V may be generated as follows using equations from Clements (1981] (see also TRC, 1986) The evaporation rate ofa liquid into stagnant air may be estimated by: G=(1.74X10- 4MKAP)/(RT) where Gis the generation rate in pounds/ minute; M, the molecular weight; K,mass transfer coefficient [cm/sec); A, surface area ofthe spill (cm2);P is the vapor pressure ofthe chemical (mm Hg); Ris the Universal Gas Constant (82.05 atm cm3/g-mole 'K)and T is the temperature ofthe liquid in *K. The mass transfer coefficient may be approximated by referencing the unknown chemical to water: K=0.83 (18/M) 0,33

Combining equations gives: G=

### (3.78X10 - 4 M 2 1 3A P)/(R T) The surface area ofa spill (or pool) is primarily a function ofspilled quantity provided the spill occurs on a flat, non

### absorbing surface. The depth ofthe pool is assumed to be 1

### cm; although ifthe area around a storage vessel is diked or not flat where puddling could take place, deeper levels could occur for the same surface area ofspilled material. In the absence ofspecific information about the size of diked area for each liquid, we assume that the spill is 1 cm deep and has density about that of water (1gm/cm3): Area (cm 2)=454 (gm/Jb)

### Q(lb) / 1

### (gm/cm 3

### ) 1 (cm) = 454 Q

Substituting and assuming the liquid is at its boiling temperatures (P=760, T>boiling point): G/Q=V=1.6M/0- 6 o / (T+273) where G/Q represents the rate of volatilization per mass ofliquid spilled. Note thatVwas estimated for liquids at theirboiling point rather than at ambient temperatures. Conditions during accidental releases are likely to vary and to involve heat (e.g. fires, exothermic runaway reactions or reactions with air orwater) causing more rapid volatilization ofthe liquid. The Agency recognizes that spills at ambient temperatures are also likely and that the rate ofvolatilization may be impacted by heat from the surroundings, subcooling due to evaporation and flashing from superheated conditions. However, for purposes ofdeveloping a relative ranking between substances volatilization at boiling points was utilized and consideration ofother conditions for all chemicals is not expected togreatly reorder the ranking ofchemicals. References Van de Putte, 1982. "The Safety Report

Legislation and itsApplication in the Netherlands", T. Van de Putte, Directorate General ofLabour, P.O.Box 69, 2273 KH, Voorburg (TheNetherlands). Journal of Hazardous Materials, 7(1983) 131-144: July 16, 1982. Turner, 1970. "Workbook ofAtmospheric

Dispersion Estimates", NTIS Environmental Health Series,PB191482, USDHEW, NAPCA, Cincinnati, OH, 1970. Meyer, 1986. Telephone discussion with G.I.

Meyer, National Institute for Chemical Studies (NICS) Charleston, W.VA. July, 1986. TRC, 1986. "Evaluation and Assessment of

Models for Emergency Response Planning" prepared for CMA, TRC Environmental Consultants, Inc. April 1986. Clements, 1981. "Mathematical Models for

Estimating Workplace Concentration Levels: A Literature Review" USEPA, Clement Associates, October 1981. Attachment II List ofTechnicalSupportDocuments 1.Responses to Public Comments on the Chemical Emergency Preparedness Program Interim Guidance and Chemical Profiles 2. Proposed Changes to the List of Extremely Hazardous substances 3. Chemicals that were Assigned Different Threshold Planning ll. aa Federal Register / Vol. 51. 

### No. 221 / Monday, November 17, 1/986 / Rules and Regulations

### No. 221 / Monday, November 17, 1986 / Rules and Regulations 41581 Quantities from the Calculated Index Value 4.Reactive Solids Whose Threshold Planning Quantities Should Not Become 10,000 Pounds 5 Alphabetical Listing ofSynonyms for the List ofExtremely Hazardous Substances 6.Threshold Planning Quantities Technical Support Document 7.Technical Support Document for Determination ofLevels ofConcern 8. The Criteria Used to Identify Extremely Hazardous Substances 9. Chemical Emergency Preparedness Program Interim GuidanceNovember, 1986 10.Chemical Profiles on the List of402 Extremely Hazardous Substances For the reasons set out in the Preamble, Title40 ofthe Code ofFederal Regulations is amended as follows: PART 300-NATIONAL OILAND HAZARDOUS SUBSTANCES POLLUTION CONTINGENCY PLAN

1.The authority citation forPart 300 is revised to read as follows:

Authority: Sec. 105Pub. L.98-510, 94 Stat. 2764, 42 U.S.C. 9505 and sec. 311(c)[2), Pub. L. 92-500 as amended, 86 Stat. 865, 33 U.S.C. 1321(c)(2) and secs. 302, 303, 305, 325 and 328, Pub. L.99-499; E.O. 12316, 46 FR42237 

### (August20, 1981); E.O. 11735, 38 FR 21243 (August 1973).

2.The table ofcontents ofPart 300 is amended by adding a new Subpart Ias follows: PART 300-NATIONAL OILAND HAZARDOUS SUBSTANCES POLLUTION CONTINGENCY PLAN Subpart I-Emergency Planning and. Community Right to Know Sec. 

### 300.91 Purpose. 300.92 Definitions. 300.93 Emergency planning. 300.94 Emergency release notification. 300.95 Penalties.

3.Following Subpart H in Part 300, a new Subpart Iis added as follows: Subpart I-Emergency Planning and Community Rightto Know §300.91 Purpose.

This regulation establishes the list of extremely hazardous substances, threshold planning quantities, and facility notification responsibilities necessary for the development and implementation ofState and local emergency response plans. §300.92 Definitions. Terms not specifically defined in this section have the same meaning as in Subpart A of this part.

Act means the Superfund Amendments and Reauthorization Act of 1986.

CERCLA HazardousSubstancemeans a substance listed in Table 302.4 of40 CFR Part 302.

Commissionmeans the State of emergency response commission (or, for the purpose of emergency planning, the Governor ifthere is no commission) for the State inwhich the facility is located.

Environmentincludes water, air, and land and the interrelationship which exists among and between water, air, and-land and all living things.

Extremelyhazardous substance means a substance listed in Appendix D of this part.

Facility means all buildings, equipment, structures, and other stationary items which are located on a single site or on contiguous or adjacent sites and which are owned or operated by the same person (orby any person which controls, is controlled by, or under common control with, such person). Forpurposes of emergency release notification, the term includes motor vehicles, rolling stock, and aircraft.

HazardousChemicalmeans any hazardous chemical as defined under § 1910.1200(c) of Title 29 of the Code of Federal Regulations, except that such term does not include the following substances:

(1)Any food, food additive, color additive, drug, or cosmetic regulated by the Food and Drug Administration.

(2) Any substance present as a solid in any manufactured item to the extent exposure to the substance does not occur under normal conditions ofuse.

(3)Any substance to the extent it-is used for personal, family, or household purposes, or is present in the same form and concentration as a product packaged for distribution and use by the general public.

(4) Any substance to the extent it is used in a research laboratory or a hospital or other medical facility under the direct supervision ofa technically qualified individual.

(5) Any substance to the extent it is used in routine agricultural operations or is a fertilizer held for sale by a retailer to the ultimate customer.

Personmeans any individual, trust, firm,joint stock company, corporation (including a government corporation), partnership, association, State, municipality, commission, political subdivision ofa State, or interstate body. Releasemeans any spilling, leaking, pumping, pouring, emitting, emptying, discharging, injecting, escaping, leaching, dumping, ordisposing into the environment (including the abandonment or discarding ofbarrels, containers, and other closed receptacles) ofanyhazardous chemical, extremely hazardous substance, or CERCLA hazardous substance.

Reportablequantitymeans, for any CERCLA hazardous substance, the reportable quantity established in Table 302.4 of40 CFR Part 302, for such substance; for any other substance, the reportable quantity is one pound.

Threshold planning quantitymeans for a substance listed in Appendix D, the quantity listed in the column "threshold planning quantity" for that substance. §300.93 Emergency planning.

(a) Applicability. The requirements of this section apply to any facility at which there ispresent an amount ofany extremely hazardous substance in excess ofits threshold planning quantity, or designated, after public notice and opportunity for comment, by the Commission or the Governor for the State in which the facility is located.

(b)EmergencyPlanning Notification. The owner or operator ofa facility subject to this section shall provide notification to the commission that it is a facility subject to the emergency planning requirements of this subpart. Such notification shall be provided: (1) On orbefore May 17, 1987 or (2) within sixty days after a facility first becomes subject to the requirements ofthis section, whichever is later.

(c) Facility EmergencyCoordinator. The owner or operator ofa facility subject to this Section shall designate a facility representative who will participate in the local emergency planning process as a facility emergency response coordinator. The owner or operator shall notify the local emergency planning committee (or the Governor ifthere is no committee) ofthe facility representative on or before September 17, 1987 or 30 days after establishment ofa local emergency planning committee, whichever is earlier.

(d)ProvisionofInformation.(1)The owner or operator of a facility subject to this section shall inform the local emergency planning committee ofany changes occurring at the facility which may be relevant to emergency planning.

(2) Upon request ofthe local emergency planning committee, the owner or operator of a facility subject to this section shall promptly provide to 

### Federal Register / Vol. 51,

### 41582 Federal Register 

# / Vol. 51, No. 221 

# / Monday, November 17, 1986 

# / Rules and Regulations the committee any information necessary for development or implementation ofthe local emergency plan. (Approved by iheOffice ofManagement and Budget under the control Number 2050-0046) §300.94 Emergency release notification.

(a)Applicability.The requirements of this Section apply to any facility: (1)At which a hazardous chemical is produced, used, or stored and (2] at which there is release of a reportable quantity ofany extremely hazardous substance orCERCLA hazardous substance which results in exposure to persons outside ofthe boundaries of the facility. This Section does not apply to any such release which is a federally permitted release.

(b)NoticeRequirements.(1) The owner or operator of a facility subject to this Section shall immediately notify the local emergency coordinator for the local emergency planning committee of any area likely to be affected by the release and the State emergency planning commission ofany State likely to be affected by the release. Ifthere is no local emergency planning committee or State emergency planning commission, notification shall be provided under this section to relevant local or state emergency response personnel.

(2) The notice required under this Section shall include the following to the extent known at the time ofnotice and so long as no delay in notice or emergency response results:

(i)The chemical name or identity of any substance involved in the release.

(ii) An indication ofwhether the substance is on the list referred to in section 302(a).

(iii) An estimate ofthe quantity ofany such substance that was released into the environment. 

### (iv) The time and duration ofthe release.

(v) Themedium or media into,which the release occurred.

(vi) Any known or anticipated acute or chronic health risks associated with the emergency and, where appropriate, advice regarding medical attention necessary for exposed individuals.

(vii) Proper precautions to take as a result ofthe release, including evacuation (unless such information is readily available to the community emergency coordinator pursuant to the emergency plan).

(viii)The name and telephone number ofthe person or persons to be contacted for further information.

(3)As soon as practicable after a release which requires notice under (b)(1) ofthis section, such owner or operator shall provide a written followup emergency notice (ornotices, as more information becomes available) setting forth and updating the information required under paragraph (b)(2) ofthis section, and including additional information with respect to-

(i)Actions taken to respond to and contain the release,

(ii)Any known or anticipated acute or chronic health risks associated with the release, and,

(iii)Where appropriate, advice regarding medical attention necessary forexposed individuals.

(4)Exceptions. (i)In lieu ofthe notices specified in paragraphs (b) (2)and (3)of this section, any owner or operator ofa facility subject to this section from which there is a release ofa CERCLA hazardous substance which is not an extremely hazardous substance and has a statutory reportable quantity may provide the same notice required under CERCLA section 103(a) to the local emergency planning committee. (ii)In lieu ofthe notices specified in paragraphs (b) (2)and (3)ofthis section, any owner or operator of a facility subject to this section fromwhich there is a release during transportation or storage incident to transportation, may provide notice by dialing 911 or, in the absence ofa 911 emergency telephone number, calling the operator. (Approved by the Office of Management and Budget under the control number 2050-0046) §300.95 Penalties.



### (a)CivilPenalties. Any person who fails to complywith the requirements of §300.94 shall be subject to civil penalties ofup to $25,000 for each 

### violation in accordance with section 325(b)(1) ofthe Act.

(b) CivilPenalties forContinuing Violations.Any person who fails to comply with the requirements of §300.94 shall be subject to civil penalties ofup to $25,000 for each day during which the violation continues, in accordance with section 325(b)(2) ofthe Act. In the case ofa second or subsequent violation, any such person may be subject to civil penalties ofup to $75,000 for each day the violation continues, in accordance with section 325(b)(2) ofthe Act.

(c) Criminal Penalties. Any person knowingly and willfully fails to provide notice in accordance with §300.94 shall, upon conviction, be fined not more thanl $25,000 or imprisoned fornot more than two (2) years, or both (or, in the case of a second or subsequent conviction, shall be fined not more than $50,000 or imprisoned fornot more than five (5] years, orboth, in accordance with 325(b)(4) ofthe Act.

3.Following Appendix C ofPart 300 new Appendix Dand Appendix E are added as follows:
APPENDIX D.-LIST OF EXTREMELY HAZARDOUS SUBSTANCES, THRESHOLD PLANNING QUANTITIES, AND REPORTABLE QUANTITIES [Alphabetical Order] Threshold Reportable Chemical name CAS No. Ambient physical state planning quantity quantity 

### I 

## I I (pounds) 1 (pounds)

e o e cyanonyonn ......................................................................................... Acetone thiosemicarbaezide.............................................................................................................. Acrolein................................................................................................................................................. Acrylamide ............................................................................................................................................. Acrylonitrile.............................................................................. Acrylyl chloride .......................................................................................................... ......... Adiponitrile ..................................................................................................................... .. Aldicarb

...... ........................................................................................................................ Aldrin............................................................................................................................... Allyl alcohol.................................................................................................................. Allylamine ........................................................................................................................................... Aluminum phosphide .......................................................... .. .................................. ......... Aminopterin................. . . .............................................................. ........................ Amiton ................................................................................................................................................ Am iton oxalate ........................................................................................................................ Am monia.

- . .......... ....................... .................. .... ............................ .. .. . ... . Ammonium chloroplatinate ............................................................................................................... Am phetamine

...... ........................................................................................................................ Aniline ........................................................................................................................................ 75-86-5 1752-30-3 107-02-8 79-06-1 107-13-1 814-68-6 111-69-3 116-06-3 309-00-2 107-18-6 107-11-9 20859-73-8 54-62-6 78-53-5 3734-97-2 7664-41-7 16919-58-7

300-62-9 62-53-3 Liquid
...................................................... Solid ............................................................ Liquid.............................................................. Solid ............................ ................. . Liquid

................ ............. Liquid................... . . ............... Liquid......................................................... Solid ...............................................................

lquid

....................... Liquid...................................... .............. Solid

............................... Liquid

............................... .......... Solid ............................................................ Gas

...................... Solid

. ................................ ................ Liquid............................................................ Uquid

.......................................................... 1.000 1,000 50 1,000 10,000

500 1,000 3 100

500 1.000 500 4500

500 500 100 500 10.000; 1,000 1,000 

### 41582 Federal Register / Vol. 51, No. 221 / Monday, November 17, 1986 / Rules and Regulations

### Federal Register / Vol. 51, No. 221 / Monday, November 17, 1986 / Rules and Regulations 41583

APPENDIX D.-LgST OF EXTREMELY HAZARDOUS SUBSTANCES, THRESHOLD PLANNING QUANTITIES, AND REPORTABLE QUANTITIES-Continued (Alphabetical Order] 

# 1 Threshold Reportable Chemical name CAS NO. Ambient physical state planning quantity quantity I I (pounds) (pounds) Aniline.2,4,6-timethyl-........................................................... ; ............................................................. Antimony pentaflouride .......................................................................................................................... Antimycin A............................................................................................................................................ Antu.......................................................................................................................................................... Arsenic pentoxide .................................................................................................................................. Arsenous oxide ............................................................................................................... .. .. Arsenous trichloride............................................................................................................................... Arsine....................................................................................................................................................... Azinphos-ethyl ........................................................................................................................................ Azinphos-methyl ..................................................................................................................................... Bacitracin............ 1 ................................................................................................................................... Benzal chlonde....................................................................................................................................... Benzenamine, 3-(trifluoromethyl)
...................................................................................................... Benzene, 1-(chloromethyl)-4-Nitro .............................................................................................. Benzenearsonic acid .................................................................................................................... Benzenesulfonyl chloride ................................................................................................................ Benzotrichlo dde ..................................................................................................................................... Benzyl chloride ....................................................................................................................................... Benzyl cyanide ....................................................................................................................................... Bicyclo[2.2.1lheptane-2-carbonitrle, 5-chloro-6-((((methylamino)Cabony)oxy)lm ...................... Bix(chloromethyl) ketone...................................................................................................................... Bitoscanete ............................................................................................................................................. Boron trichloride..................................................................................................................................... Boron trifluoride
..................................................................................................................................... Boron trifluoride com pound with methyl ether (1:1) .......................................................................... Bromadolone
......................................................................................................................................... Bromine ................................................................................................................................................... Butadiene ................................................................................................................................................ Butyl isovalerate
.................................................................................................................................... Butyl vinyl ether
...................................................................................................................................... C.l. basic green 1
................................................................................................................................. Cadmium oxide ...................................................................................................................................... Cadmium stearate.................................................................................................................................. Calcium arsenate................................................................................................................................... Camphechlor........................................................................................................................................... Canthariddin ........................................................................................................................................... Carbachol chloride................................................................................................................................. Carbamic acid, methyl-, 0-(((2,4-Dimethyl-1, 3-Dithiolan-2.yl)Methylene)Amino). ....................... Carbofuran ............................................................................................................................................. Carbon disulide..................................................................................................................................... Carbophenothion
................................................................................................................................... Carvnone .................................................................................................................................................. Chlordane................................................................................................................................................ Chlo fenvinfos

........................................................................................................................................ Chlorine .................................................................................................................................................. Chlormephos
......................................................................................................................................... Chlormequat chloride............................................................................................................................. Chloroacetaldehyde ............................................................................................................................. Chloroacetic acid.................................................................................................................................. Chloroethanol

........................................................................................................................................ Chloroethyl chloroformate..................................................................... .. .... . ................. Chloroform
........................................................................................................................................... Chloromethyl ether ................................................................................................. ; .............................. Chloromethyl methyl ether................................................................................................................... Chlorophacinone ................................................................................................................................... Chloroxuron ............................................................................................................................................ Chlorthiophos......................................................................................................................................... Chromic chloride ................................................................................................................................... Cobalt........................ ........................................................................................................................... Cobalt carbonyl ..................................................................................................................................... Cobalt. ((2,2'-(1.2-ethanediylbs (nirilomethylidyne))bis(6-fluorophenolato))(2) ............................ Colchicine................................................... ....................... ................................................................. Coumafuryl ........................................................... : ................................................................................. Coumaphos........................................ ........................................................ ; ....................... Coumatetray .................................. ................. ............................................................................... Cresol, o-............................................................................................................................................... Crimidine................................................................................................................... Crotonaldehyde .................................................................................................................................... Crotonaldehyde, (E

- .................................................................................................................... Cyanogen bromide.............................. ......................................................................................... Cvanooen iodide

....................................................

Liecaborane (14)..................................... Demeton ..................................................... Demeton-s-methvl

................. 88-05-1 7783-70-2 1397-94-0

86-88-4 1303-28-2 1327-53-3 7784-34-1 7784-42-1 2642-71-9

86-50-0 1405-87-4(a) 98-87-3 98-16-8 100-14-1 98-05-5 98-09-9 98-07-7 100-44-7 140-29-4 15271-41-7

534-07-6 4044-65-9 10294-34-5 7637-07-2 353-42-4 28772-56-7 7726-95-6 5106-99-0 $109-19-3 6111-34-2 5633-03-4 1306-19-0 2223-93-0 7778-44-1 8001-35-2

56-25-7 51-83-2 26419-73-8 1563-66-2

75-15-0 786-19-6 52244-16-8 57-74-9 470-90-6 7782-50-5 24934-91-6

999-81-5 6107-20-0

79-11-8 107-07-3 627-11-2 67-66-3 542-88-1 107-30-2 3691-35-8 1982-47-4 21923-23-9 10025-73-7 57440-48-4 10210-68-1 62207-76-5

64-86-8 s117-52-2

56-72-4 5836-29-3

95-48-7 535-89-7 4170-30-3

123-73-9 506-68-3 506-78-5 2636-26-2 675-14-9 66-81-9 108-91-8 s287-92-3 17702-41-9 8065-48-3 919-8-8 10311-84-9 19287-45-7

-84-74-2 $ 8023-53-8

111-44-4 149-74-6 62-73-7 141-66-2 1464-53-5 814-49-3 Liquid. ................... ... Liquid.............................................................. Solid ............................................................... Solid ............................................................... Solid .............................................................. Solid .............................................................. Liquid............................................................. Gas ............................................................... Solid .............................................................. Solid ............................................................. Solid

......................................................... Liquid. ........................... Liquid.............................................................. Solid ............................................................... Solid ............................................................... Liquid.............................................................. Liquid.............................................................. Liquid.............................................................. Liquid.............................................................. Solid ......................................................... Solid ............................................................... Solid ............................................................... Liquid .............................................................. G as .......................... .................................. Liquid

................................. Solid ............................................................... Liquid .............................................................. Gas .............................................................. Liquid

. ... . . ............... Liquid

. ................... Solid

.......................... ............... Solid ............................................................... Solid ......................................................... Solid ................................................ :........... So lid ............................................................... Solid

................................. .......... Solid

.................... ................. Solid .................. Solid

....................................................... Liquid .............................................................. Liquid .............................................................. Liquid ............................................................. Liquid

............................ . ..... Liquid........ Gas ..............................................................

Lq

id ............... .............................................. Liquid

................................. Lq

id. ;................... .................................... Solid ....................................................... Liquid ............................................................. Liquid ............................................................... Liquid ....................................................... Liquid

................................. Liquid ......................................................... Solid ........................................................ Liquid :. . ..... . . .............. Solid .......................... ....................... Solid ........................................................ Solid
....................... : :..:.. Solid

............ ............ , . .,............... Solid

.................................. Solid .............................................................. lid..
.................... . .. Solid ....................................................... . Solid. , Solid

.................................. Solid ............................................................ Solid

........................... Liquid

................................. Liquid

................ ........... Soid.. Solid

......... .................. Liquid

................................ Liquid .............................................................. Solid

............ ..................... Liquid.............. . ... Liquid

.................................. Solid ............................................................. Liquid............................................................. Liquid

................................. Solid.............................................................. G as ............................................................. Liquid ............................................................. Solid ............................................................. Liquid

................................. Liquid ............................................................. Liquid............................................................. Liquid ........................................ Liquid ............................................................. Liquid ............................................................. 500 500 31,000

500 100 5oo 500 100 100

2 10,000

500 500 500

2 10,000

100 500 1,000 500

2 500 500 500 1,000

100 500 10,000 1 0,000 10,000 10,000

100 31,000

500 500 100 500 100

2 10,000

500 10,000 1,000

500 100 500 .1,000 10,000

100 500 1,000 10,000 -1,000 (10 100 500 1,000 2 10,000

100 100 100 10,000

100 500 1,000

100 1,000 1,000 500 1,000 1.000

100 I0 10,000 10,000

500 500 500 100 .100 10.000 10.000 10,000 1,000 1,000

100 500 1,000 '1 '1 '1 100 '5,000 25,000 2 5,000 11 '1 '1 5,000

'1

1 10 21 2100

21 21 '1 '1 '1 '1
'I

21,000, *1 1 '1 10 10 '1 '1 :I

21 1 '1 I1 100

I10 '1 21 1 '1 '1 ' 1 '1 '1

21 '1 '1 tO '1 1

100 81,000

'1 I1 I1 1,0 '1 '1 *1 10 '1 '1

10

21 3e ..........................

ne.................... .............

### 41584 Federal Register / Vol. 51, No. 221 / Monday, November 17, 1986 / Rules and Regulations

APPENDIX D.-LIST OF EXTREMELY HAZARDOUS SUBSTANCES. THRESHOLD PLANNING QUANTITIES, AND REPORTABLE QUANTITIES-Continued [Alphabetical Order] Threshold Reportable Chemical name CAS No. Ambient physical state planning quantity quantity I 

### I (pounds) (pounds) Diethyl-p-phenylenediamine. Diethylcarbamazine citrate. Digitoxin ...................................... Diglycidyl ether ........................... Digoxin ........................................ Dimefox ...................................... Dimethoate .................................. Dimethyl phosphorochloridothi Dimethyl phthalate .................... Dimethyl sulfate.......................... Dimethyl sulfide......................... Dimethyl-p-phenylenediamine.. Dimethyldichloroslane .............. Dim ethylhydrazine...................... Dim etilan..................................... Dinitrocresol .............................. Dinoseb ...................................... Dinoterb ...................................... Dioctyl phthalate........................ Dioxathion ................................. Dioxolane ................................... Diphacinone ............................... Diphosphoramide. octamethylDisulfolon ................................... Dithiazanine iodide.................... Dithiobiuret ................................. Emetine. dihydrochloride .......... Endosulfan

..................... Endothion

........ ................ ................ ...... . . ........ End n. ............................... . ................................................... ................................................... Epichlorohydn..... ............................................................................................................................... EPN

........ .... ............................................................................................................................. Ergocalciferol .......... .............................................................................................................................. Ergotamine tartrate............................................................................................................................. .. Ethanesulfonyl chloride. 2.chloro-. .................................................................................................. Ethanol, 1 c2-dichloro-, acetate

................................................ Ethion

.................. ............................................................................................................ Ethoprophos . ........................................................................................................................................... Ethyl thiocyanat .................................................................................................................................. Ethylbis(2-chloroet hyl)amine .................................................................................................... ............ Ethylene i luorohydrin.. ........................................................ ............................................... Ethylene oside....... ...................................... ... . ......................................... ... Ethylenediamine.................................................................................................................. ... Ethyleneim ine .............................................................. .................................................................... Ethylmereuric phosphate................................................................................................. Fenamiphos........................................................................................................ .................... .... Fenitrothion
.......................................................................................................................................... Fensult othio n....................................................................................................................................... Fluenetil. ................................................................................................................ ..... .......... . .. Fluorine........................................................................................................................ ......................... Fluoroac tamide .. .................................................................................................................. .................. Fluoroacetic acid................................................................................................................................. Fluoroacetyl chloride ............................................................................................................ ........... Fluorouracil chloride......... ............................................ ................................................................ Fonofos ................................................................................................................................... ....... . Formaldehyde ..................................................................................................................................... Formaldehyde cyanohydrin...................................................................................................... Formetanate
........... ...................................................................................................... ... . Form othion ..................................................................................................................................... Form aranate ............................................................................................................................ ......... Fosthietan ............................................................................................................................... ....... Fuberidazol ............................................................................................................................... Furan..... ...................................... .d .

.......................................................... ............. Gallium trichloride ................................................................................................................................. Geau chloroc yc .................................................................................................. ..................... ..... H exachlorocyclopentadie ne ................................................. ...................................................... H exachloronaphthalene N... -. i ......... .............................................................................................. H examethylenediam ine, N ,N dibu yl.. ....................................... ........................................ Hydrazine ............................................................................................................................. Hydrocyanic acid .......................................................................................................... Hydrogen chloride............................................................................

. . ..... Hydrogen fluoride............................................................................................................. .... . ..... Hydrogen peroxide (concentration greater than 52%) ............................................................... Hydrogen selenide ................................................................................................................................. Hydrogen sulfide ................................................................................................................................ Hydroquinone........................................................................................................................................ Indomethacin.......................................................................................................... ................. Iridium tetrachloride ............................................................................................. Iron, Pentacarbonyl-. ....................................................................................................... ................. Isobenzan ............................................................................................................................................. Isobutyronitrile....................................................................................................................................... Isocyanic acid, 3,4-dichlorophenyl ester........................................................................ ...... ......... Isodrin................................................................................................................................................... Isofluorphate........................................................................................................................................ Isophorone diisocyanate ..................................................................................................................... Isopropyl chloroformate........................................................................................................................ Isopropyl form ate ................................................................................................................................. Isopropylmethylpyrazolyl dimethylcarbamate............................................................... .................. Lactonitrile ............................................................................................................................................ Leoptophos ............................................................................................................................................. 593-05-0 1642-54-2

71-63-6 2238-07-5 20830-75-5

115-26-4 60-51-5 2524-03-0 5 131-11-3

77-78-1 75-18-3 99-98-9 75-78-5 57-14-7 644-64-4 534-52-1

88-85-7 1420-07-1 5117-84-0

78-34-2 5646-06-0

82-66-8 152-16-9 298-04-4 514-73-8 541-53-7 316-42-7 115-29-7 2778-04-3

72-20-8 106-89-8 2104-64-5

50-14-6 379-79-3 1622-32-8 10140-87-1

563-12-2 13194-48-4

542-90-5 538-07-8 371-62-0 75-21-8 107-15-3 151-56-4 52235-25-8 22224-92-6

122-14-5 115-90-2 4301-50-2 7782-41-4 640-19-7 144-49-0 359-06-8 51-21-8 944-22-9 50-00-0 107-16-4 23422-53-9 2540-82-1 17702-57-7 21548-32-3 3878-19-1

110-00-9 13450-90-3

77-47-4 81335-87-1 4835-11-4

302-01-2 74-90-8 7647-01-0 7664-39-3 7722-84-1 7783-07-5 7783-06-4 123-31-9 -53-86-1 510025-97-5 5 13463-40-8 297-78-9 78-82-0 102-36-3 465-73-6

55-91-4 4098-71-9

108-23-6 625-55-8 119-38-0 78-97-7 21609-90-5 Liquid .............................................................. Solid ............................................................... Solid
............................................................... Liquid .............................................................. Solid ............................................................... Liquid .............................................................. Solid

................................. Liquid .......................... v ............................. Liquid.............................................................. Liquid .............................................................. Liquid .............................................................. Solid
............................................................... Liquid .............................................................. Liquid .............................................................. Solid ............................................................... Solid ............................................................... Solid ............................................................... Solid .............................................................. Liquid .............................................................. Liquid

................ ............. Liquid .............................................................. Solid
............................................................... Liquid............................................................. Liquid............................................................. Solid .......................................................... Solid .............................................................. Solid .............................................................. Solid
.............................................................. Solid .............................................................. Solid .............................................................. Liquid............................................................. Solid .............................................................. Solid .............................................................. Solid .............................................................. Liquid............................................................. Liquid............................................................. Liquid............................................................. Liquid

.......... . . ............. Liquid............................................................. Liquid............................................................. Liquid............................................................. Gas................................................................ Liquid............................................................ Liquid............................................................. Solid
.............................................................. Solid .............................................................. Liquid.............................................................. Liquid .............................................................. Solid .............................................................. Gas................................................................ Solid
.............................................................. Solid
............................................................... Liquid .............................................................. Solid
............................................................... Liquid .............................................................. Gas................................................................. Liquid .............................................................. Solid .......................................................... Liquid ........................................................ Solid
............................................................... Liquid ............................................................ Solid .............................................................. Liquid .............................................................. Solid ............................................................... Liquid .............................................................. Solid
............................................................... Liquid .............................................................. Liquid.............................................................. Gas
................................................................. Gas ................................................................. Gas
................................................................. Liquid.............................................................. Gas
................................................................. Gas ................................................................. Solid ............................................................... Solid ............................................................... Solid
............................................................... Liquid.............................................................. Solid
.............................................................. Liquid.............................................................. Solid
............................................................... Solid
.............................................................. Liquid.............................................................. Solid
............................................................... Liquid .............................................................. Liquid.............................................................. Liquid ............................................................. Liquid ............................................................ Solid
............................................................ 10,000 100 3100 1,000

100 500 500 500 10,000

500 100

2 10.000 1.000

5oo

2 100 50O 10,000

500 10,000 2 100 500 500 100 1,000 2 500 500 1,000

100 31,000

5oo 500 1,000 1,000 1,000 10,000 10,000

32 1,000 10,000

500 10.000 2 500 1,000 100 100 '22 32 500 500 500 10,000

100 100 100 500 100 500 500 500 10,000

500 1,000

100 500 100 1,000 2 500 500 10,000 10,000

100 100 10.000

500 100 ' 100 -100 1,000

500 5oo 1,000

500 '1 '1 21 '1 10 10

, 1 5.000

1 '1 I1 '1 10 1.000

10 5.000

'1 '1 100 ,1

21 100 '1 '1

5,00D

'1 1

'1 10 '1 '1 ,10 11 '1 '11 '1 '1 1,000 ii

1.0 1 '1 '1 '1 i1 '1 10 '1 '1 '1 '1 10 100 '1 '1 100 10 1 '1 '1 1 '1 100 '1 '1 '1 '1 '1 100

### Federal Register 

## / Vol. 51, No. 221 / Monday, November 17, 1986 / Rules and Regulations 41585

APPENDIX D.-LIST OF EXTREMELY HAZARDOUS SUBSTANCES, THRESHOLD PLANNING QUANTITIES, AND REPORTABLE QUANTITIES-Continued [Alphabetical Order] Threshold Reportable Chemical name CAS No. Ambient physical state planning quantity quantity I (pounds) (pounds)

Lithium hydride. Malononitrile............. Manganese, tricarbo Mechlorethamine. Mephosfolan ............ Mercuric acetate. Mercuric chloride. Mercuric oxide. Mesitylene................ Methacrolein diacete Methacylic anhydrid Methacrylonitrile. Methacryloyl chloridi Methacryloyloxyethyl Methamidophos. Methanesulfonyl fluc Methidathion ............ Methiocart ............... Methomyl................ Methoxyethylmercuri Methyl 2-chloroacryl Methyl bromide. Methyl chloroformaet Methyl disulfide. Methyl isocyanate... Methyl isothiocyanal Methyl mercaptan Methyl phenkapton. Methyl phosphonic 4 Methyl thiocyanale.. Methyl vinyl ketone. Methyhydrazine. Methylmercuric dicyi MethyltnchlorosiLane Metolcarb ................. Mevinphos ................ Mexacarbate ............ Lhit ,,i.n r.

Nicotine sulfate................................................................................................................................... Nitric acid ............................................................................................................................................ Nitric oxide ....................................................................................................................................... Nitrobenzene..................................................................................................................................... Nitrocyclohexane................................................................................................................................ Nitrogen dioxide ................................................................................................................................. Nitrosodimethylamine ......................................................................................................................... Norbormide ...................................................................................................................................... Organorhodium complex (PMN-82-147)

........................ . ............ Orotic acid ........................................................................................................................................ Osmium tetroxide ................................................................................................ .... .... ..... Ouabain............................................ .................................................................................................. Oxamyl ................................................................................................................................................. Osetane, 3,3 bis(chloromethyl)

. ................................................................................................. Oxydisulfoton .................................................................................................................................. Ozone .................................................................................................................................................. Paraquat .............................................................................................................................................. Paraouatmethosulfate ........ ... ................................... .......................... Parathon-metyl ......................................... Panis green .................................................. Pentaborane

. ... . .............. Pentachloroethane..................................... Pentachlorophenot..................................... Pentadecylamine ....................................... Peracetic acid

. ... . ............. Perchloromethylmercaplan ....................... Phenol

. ......... . ............. Phenol, 2.2'-thiobis(4.6-dichloro- ............ Phenol. 2,2'-thiobis[4-chloro-6-methyl... Phenol, 3-(1-methylethyl)-, methylcarban Phenoxarsine, 10.10'-oxydi-. ...................

Phoslolan ........................................................................................................ Phosgene........................................................................................................ . .............................................................................. 541-25-3 Liquid...................................................... 58-89-9 Solid

...... ..................... 7580-67-8 Solid

. .... ....................... 109-77-3 Solid

................................. 12108-13-3 Liquid.............

51-75-2 Liquid........... 950-10-7 Liquid....... ..... .................. ........ 1600-27-7 Solid .....---.. ....... ................. ........... 7487-94-7 Solid

... .............. .... 21908-53-2 Solid ........................... .......................

108-67-8 Liquid

................. .............. 10476-95-6 Liquid. ........ ...

760-93-0 Liquid.............. 126-98-7 Liquid

......... ..................... ............ 920-46-7 Liquid

.. .. .......................... 30674-80-7 Liquid.......................................................... 10265-92-6 Solid ........... ...........................

558-25-8 Liquid

............................... 950-37-8 Solid

.............. ..-................................. 2032-65-7 Solid

.......................... 16752-77-5 Solid ........... ..........................

151-38-2 Solid ............... 80-63-7 Liquid

..... - - -........ 74-83-9 Gas

. ....... .......................... 79-22-1 Liquid..........................-................... 624-92-0 iquid................... 624-83-9 Liquid. 556-61-6 Solid .. ..... 74-93-1 Gas

........................... 3735-23-7 Liquid

... ..... ..... ...................... 676-97-1 Solid................... 556-64-9 Liquid......................... 78-94-4 Liquid.......... 60-34-4 Liquid

.......................................... 502-39-6 Solid

.................................. 75-79-6 Liquid....................................................... 1129-41-5 Solid

. ............................................. 7786-34-7 Liquid........................................................ 315-18-4 Solid .............................................................. 50-07-7 Solid ................................................ 6923-22-4 Solid

............. ....................... 2763-96-4 Solid .. . ...............

505-60-2 Liquid........................................................... 57440-02-0 Solid ..... ............................................. 13463-39-3 Liquid................................................

54-11-5 Liquid

.............................. 65-30-5 Solid
.. ................... 7697-37-2 Liquid..................... ............................ 10102-43-9 Gas........................................................

98-95-3 Liquid

. ......................................... 1122-60-7 Liquid............... .......... .. ............ 10102-44-0 Gas

....... ..................

62-75-9 Liquid

. ......................... 991-42-4 Solid

.................................. . 0 Solid

............................ ......... 565-86-1 Solid

................... ........... -20816-12-0 Solid

. ...........................................

630-60-4 Solid...............-.................... 23135-22-0 Solid

.....................................

78-71-7 Liquid

. ............................. 2497-07-6 Liquid

. ........................................ 10028-15-6 Gas

............... .................... 1910-42-5 Solid ..................... ................ 2074-50-2 Solid

. ...... ........................

56-38-2 Liquid

. . ....................... 298-00-0 Solid .............. . ................................. -12002-03-8 Solid ......................................... 19624-22-7 Liquid

................... ............. - ................

76-01-7 Liquid............................................................. -87-86-5 Solid .. . ....................... 2570-26-5 Solid .......................................................

79-21-0 Liquid. . ........ .............. 594-42-3 Liquid................. .................................. 108-95-2 Solid ......................................................... 97-18-7 Solid

. ......... .................... 4418-66-0 Solid .. ........................................... ... .... 64-00-6 Solid
........................................................... 58-36-6 Solid..................... ............................ 696-28-6 Liquid

................................... ............ '59-88-1 Solid....................................... 62-38-4 Solid

......................................... 2097-19-0 Solid

................. .............

103-85-5 Solid

................. . ............. 298-02-2 Liquid.......................................................... 4104-14-7 Solid ........................................................ 947-02-4 Solid
. .............................. 75-44-5 Gas............................................... 732-11-6 Solid ................................... 13171-21-6 Liquid.......................................................... isocvanate. Bride

..

namide

...................................... ................. 32 1,000 '100(b)

500 10,000

32 500 50 500 500 10,000 1,000

500 10,000

100 500 100 1,000 50O 500 1,000 500 500 1,000 10,000

100 500 -500 500 500 4100 10,000 2 500 500 10,000

100 50 500 500

2 500 1,000 10.000 'Any 3100

100 1.000 3100 10.000

500 100 500 100

2 10,000 10,000 3100

100 500 1.000

100

2 2 1100 u 100

500 500 10.000 10,000

100 500 500 50 100 100 500 500 1.000 1.000 500 500 100

2 100 100

2 2 100

### 41586 Federal Register / Vol. 51, No. 221 / Monday, November 17, 1986 / Rules and Regulations

APPENDIX D.-LIST OF EXTREMELY HAZARDOUS SUBSTANCES, THRESHOLD PLANNING QUANTrTIES, AND REPORTABLE QUANTITIES-Continued [Alphabetical Order] Threshold 

## ] RepOrtable Chemical name CAS No. Ambient physical state planning quantity quantity I(Ipounds) (pnuds)

rn spn ine ............................................................................................................................................... Phosphonothioic acid, methyl-, O-ethyl O-(4-(methytthio)phenyl) ester.......................................... Phosphonolhioic acid, methyl-, S-(2-(bis(l-.ethylethyl)amino)ethyl) O-ethyl ester...................... Phosphonolhioic acid, methyl-.O-(4-nitrophenyl) O-phenyl ester .................................................... Phosphoric acid, dimethyl 4-(methylthio) phenyl ester

................................ Phosphorous trichloride................................................................................................................... Phosphorus ............................................................................................................................................. Phosphorus oxychloride ............................................................................................................... Phosphorus pentachloride .................................................................................................................... Phosphorus pentoxide .................................................................................................................. Phylloquinone...................................................................................................................................... Physostigmine ......................................................................................................................................... Physosligmine, salicylate (1:1)............................................................................................................. Picrotoxin ................................................................................................................................................ Piperidine................................................................................................................................................. Piprolal .................................................................................................................................................... Pirimifos-ethyl......................................................................................................................................... Platinous chloridde................................................................................................................................... Platinum tetrachloride.................................................................................................................. Potassium arsen ite................................................................................................................................. Potassium cyanide ................................................................................................................................. Potassium silver cyanide................................................................................................................. Promecarb............................................................................................................................................... Propargyl bromide .................................................................................................................................. Propiolactone, beta-. ............................................................................................................................ Propionitrile ............................................................................................................................................. Propionitrile, 3-chloro-................................................................................................................. Propyl chloroformate ............................................................................................................................ Propylene glycol, allyl ether ................................................................................................................

Py----ne -... ....... - ............. . Pyrene.......................................................................... Pyridine, 2-methyl.5.vinyl- ....................................... Pyridine, 4-amino . .................................................... Pyrdine, 4-nitro-, 1-oxide .......................................... Pyriminil . .................................. ............................... Rhodium trichloride .................................................... Salcomine........................................ ........................... Sarin......................................................................... Selenium oxychloride................................................. Selenous acid ............................................................. Semicarbazide hydfochloride.................................... Silane. (4-aminobutyl)diethoxymethyl-. .................. Sodium anthraquinone-l-sulfonate.......................... Sodium arsenate........................................................ Sodium arsenite. Sodium azide (Na(N3 Sodium cacodylate.... Sodium cyanide (Na(3))
....

........................................................................................ ...................... CN)................... ................................................................................ .................. CNI)).................................. .....-... *-...............--'* a..........I......................................................................................................... Dhenat ................................................ .......................... ...............................
Sodium tel nurite ........................................... :......................................................................................... Strychnine ................................... ........................ . Strychnine, sulfate

................. ... ....................................................................... Sut ot p............................................................................ ........................................................ Solfoxide. 3-chloropropyl .............. I .......... I .................................................. .......... Sulfur dioxide

.................... .............................. ........................................................................... Sulfur tetrafluoride .................................................................................................................. ............. Sulfur trioside
................................................................................................................
............ Sulfuric acid ......................................................................................................................................... Tabun

........ ......................................................................... :.................................................................. Tellurium

........................................................................................... ..................................................... Tellurium hesa.luo de .......................................................................................................................... Tepp ......................................... .............................. .............................................................. Terbu os ........................................... .................................................................................................... Tetraethylead....................................... .......................... .................................................................... Tetraethyllin .............................................. .................... ..................................................................... Tetramethyl lead....................................................................... Tetranitr ylolhand .................................................... ............ .., ................................................................ Tetranitromethane ................................................................. ; ................................................................ Thallium sulfate

............................. ....... ............. .................................. Thallous carbonate .................................... ......................................................................................... Thallous chlorid e .............................................................. ................................................................. Thallous malonate................................................................................................................................. Thalous sulf ate , .................................................................. . ................................................................ Thatlous sulfate ................. ......................................................... **** - * - Thiocarbazide ........................................................................................................................................ Thiodyanic acid, 2-(benzothiazolytthio)methyl ester

................................. Thiofanox............................................................................................................................................... Thiomoton .............................................................................................................................................. Thionazin ................................................................................................................................................. Thiophenol ............................................................................................................................................. Thiosemicarbazide ................................................................................................................................ Thiourea. (2-chlorophenyl). ................................................................................................................ Thiourea, (2-methylphenyl)-. ............................................................................................................... Titanium tetrachlonde

.............................................. 7803-51-2 2703-13-1 50782-69-9 2665-30-7 3254-63-5 7719-12-2 7723-14-0 10025-87-3 10026-13-8 1314-56-3

84-8D-0 57-47-6 57-64-7 124-87-8 110-89-4 5281-13-0 23505-41-1 10025-65-7 13454-96-1 10124-50-2

151-50-8 506-1-6 2631-37-0

106-96-7 57-57-8 107-12-0 542-76-7 109-61-5 1331-17-5

75-56-9 75-55-8 2275-18-5

95-63-6 129-00-0 140-76-1 504-24-5 1124-33-0 53558-25-1 10049-07-7 14167-18-1

107-44-8 7791-23-3 7738-00-8 583-41-7 3037-72-7 6126-56-3 7631-89-2 7784-46-5 26628-22-8

124-65-2 143-33-9 62-74-8 131-52-2 13410-01-0 10102-18-8 .10102-20-2 57-24-9 60-41-3 3689-24-5 3569-57-1 7446-09-5 7783-60-0 7446-11-9 7664-93-9

77-81-6 13494-80-9 7783-80-4 107-49-3 13071-79-9

78-00-2 597-64-8 75-74-1 509-14-8 51314-32-5 10031-59-1 6533-73-9 7791-12-0 2757-18-8 7446-18-6 2231-57-4 21564-17-0 39196-18-4

640-15-3 297-97-2 108-98-5 79-19-6 5344-82-1 614-78-8 7550-45-0 Gas ............................................ .................... Liquid.............................................................. Liquid........................................................ Liquid .............................................................. Liquid.............................................................. Solid ............................................................... Liquid.............................................................. Solid ............................................................... Solid
............................................................... Liquid .............................................................. Solid ............................................................... Solid ............................................................... Solid............................................................... iqud.............................................................. Solid.......................................................... Lquid .............................................................. Solid............................................................... Solid............................................................... Solid............................................................... Solid ......................................................... Solid ............................................................... Solid

............................. L luid.............................................................. Liquid.............................................................. L uid.............................................................. Lquid ................. ...................................... Liquid.............................................................. Liquid.............................................................. Liquid ...................................................... Uquid ...................................................... Solid ............................................................... Liquid .............................................................. Solid ............................................................... Liquid............................................................. Solid
............................................................... Solid ............................................................... Solid ........... ............................................. Solid .... ..................................................... Solid ............................................................... Liquid .............................................................. L i d .............................................................. Solid............................................................... Solid ............................................................... Liquid .. ..................................................... Solid ........................................................... Solid............................................................... Solid ....................................................... . Solid .............................................................. Solid

........................................... Solid .............................................................. Solid .............................................................. Solid............................................................ Solid

........................ Solid

........................ Solid

............................ Solid ........................................................ Solid
.............................................................. Liquid....................... :................................. Liquid ...................... ;.' ... ........................ Gas.......................... Gas................................................................ Solid .............................................................. Liquid ...................

............ Lquid

............................ Solid................................................ .. Gas ................................................................ Lquid ................................. *

........................... Liquid ..............
................. ........... Liquid.............................................................. Liquid

. .... . . : .............. Liquid...... ................................................. Liquid

....................... :................. : Solid............................................................... Solid ............................................................... Solid

............................. Solid ............................................................... Solid ............................................................... Solid ...................................................... Solid

............................. Liquid .............................................................. Solid

............................. Liquid............................................................ Liquid............................... ; ........................ Liquid .............................................................. Solid ............................................................... Solid ......................................................... Solid
............................................................... Liquid .............................................................. 500 500 100 500 500 1,000 '500 -500

'2 10,000

100 100 500 1,000

100 1,000 10,000 10,000

500 '100 '500 1,000 2 500 500 1,000

500 10,000 10,000 10,000

100 10.000 01,000

500 100 500 1.000 10,000

500 32 500 1,000 1,000 1,000 10,000 1,000 500 100 '100 2 100 100 500 5O0 3100

100 500 500 500 100 '100 1,000

,2 500

2 100 500 0 100 3100 0100

500 10,000

100 0100 0100 2100

100 1,000 10,000

100 10,000

500 500 100 100 5oo 100 100 '1 i1 11 1 1,000 1,000

21 21 1t 2 1 II *1 21 21

2 1,000 10 1 10

10 1,000

10 1.0

' 1 21 100 10 1,000
21

100

100

I 21 1,0

10 10

100 21 2100 01,000

1,0 21

10 100 1 10 100 1 100 1 100 1 10 SI

### Federal Register / Vol. 51, No. 221 / Monday, November 17, 1986 / Rules and Regulations 41587

APPENDIX D.-LIST OF EXTREMELY HAZARDOUS SUBSTANCES, THRESHOLD PLANNING QUANTITIES, AND REPORTABLE QUANTITIEs-Continued [Alphabetical Order] Threshold Reportable Chemical name CAS No. Ambient physical state planning quantity quantity (pounds) (pounds) T"oluene 2.4-dkisocyanate ......................................................... ............................................................. 548-84-9 Liquid .............................................................. Soo 100 Toluene 2.6diisocyanate

.......... ................... ......... ... .......... . ... ......... : ....... 81-08-7 Liquid

............................................ 100 100 Trans-t,4-dichiorobutene .......................................................................................................... 110-57-6 Liquid

.............................................................. 500 1 Triamiphos ............................................................................................................................. 1031-47-6 Solid .............................................................. 500 1"azofos ........................................................ ....... ...... ...... ............. ... ... ..............24017-47- Liquid.............................................................. 500 1 Trichloro(chloromethyl)silane ................................................................................................ 1558-25-4 Liquid .............................................................. 100 1 Trichloro(dichlorophenyl)silane ............................................................................................. .. 27137-85-5 Liquid .............................................................. 500 1 Trichloroacetyl chloride ................................................ ................... ........... 76-02-8 Liquid ............................................................ 500 1 Trichloroethylsilane ................................................................................................................... 115-21-9 Liquid .......................................................... 10,000 1"richloronate................................................. ..................... ...... ......... .................................................. 327-98-0 Liquid............................... ............................. 1,00 Trichlorophenyisilane ........................................-............ . ........................................... 98-13-5 Liquid ............................................................. 21 Trichlorophon ........................... ........... ..... ....... .......... ........................... .......... .. 552-68-6 Solid ......................... ..................................... 10,000 100 Triethoxysilane ................................................................. .. ................................ 998-30-1 Liquid ........................ . ............................. 500 1 Trimethylchlorosisne ............................................ .. .. ............................. .......................... 75-77-4 Liquid .............................................................. 1,000 01 Trimethylolpropane phosphit ....................... ............... .9.................. 824-11-3 Solid .............................................................. 500 '1 Trimethyltin chloride

................. ............................. 1066-45-1 Solid.............................. 500 11 Triphenyltin chloride ................................................................................................................... 639-58-7 Solid ............................................................... 500 1 Tris(2-chlinehl)amine .............................................................................. ......... 555-77-1 Liquid .............................................................. 1,000 11 Valinomycin .......................................... .....

............................. ............. ..... ............ ...... 2001-95-8 Solid ............................... ............................... 21,000 , I Vanadium penl toxide ................................................................. .................. 1314-62-1 Solid .......................................................... 4100 1.000 Vinylacetate monomer .............................. .......... ........ ...

.. .. ................. ... .................. ... ..... 108-05-4 Liquid ....................... ...

.... ... ...... .... ......... 1,000 5,0OO Vinynorbomene ..................... ........ . . . ................... . 55.48-77-1 Liquid

.......................................................... 10,000 '1 Warnarin

............... .......................... ............. ............... .. 81-1-2 Solid... .. ...... . . . ............... a. 500 100 Warfarin sodium .................................................................................................. .... . 129-06-6 Solid

.................... . . . . .... 51,00 11 Xylylene dichloride ......................................................................... ..1. ...................... . 28347-13-6 Solid ............................................................ 100 ; I Zinc phosphide ......................................................... ...............

. ..................... 21314-84-7 Solid

. .. .............................. 500 100 Zinc, dichloro(4.4-dimethyl-5((((methylamino)carbonyl)oxy)imino)pentanenitrile)----..

. -....... 58270-08-9 Solid ............................................................ 100 1 'Statutory reportable quantity for purposes of emergency notification under SARA section 304(a)(2). 'Indicates that the reportable quantity is subject to change when the assessment of potential carcinogenicity and/or chronic toxicityis completed. 'The calculated threshold quantity changed after technical review as described inthe text. 'This material is areactive solid. The threshold planning quantity will not become 10.000 pounds for the non.powder form. ' This chemical is proposed for deletion from list. Threshold planning quantity is inthe interim assigned to the category of lowest concern. 10,000 pounds. 'The statutory one-pound reportable quantity for methyl isocyanate under CERICLA section 102(b) may be adjusted in afuture rulemaking action. APPENDIX E.-LIST OF EXTREMELY HAZARDOUS SUBSTANCES, THRESHOLD PLANNING QUANTITIES, AND REPORTABLE QUANTITIES [CAS Order] Threshold Reportable CAS No. Chemical name Ambient physical state planning quantity quantity (pounds) (pounds) (ons

0 ......................... ......... 50-00-0 ............. .......... 50-07-7 ............................................ 50-14-6.............................................. 51-21-8 .............................................. 51-75-2

. .... . ............ 51-83-2.............................................. 52-68-6 ........................................... 53-86-1 . ....... ................................ 54-11-5.............................................. 54-62-6

. ...... ............................. 55-91-4 .............................................. 56-25-7 ............................................ 56-38-2 .............................................. 56-72-4

. ...... . ........... 57-14-7 ............ ......... ............ 57-24-9 ............................................ 57-47-6 ............................................. 57-57-8 .......................... ........... 57-64-7

. ....... ............ 57-74-9 ............................................. 58-36-6 ........................................... 58-89-9......................................... 59-88-1 ............................................... 60-34-4 ............................................. 60-41-3

. ...... . ........... 60-51-5 ............................................ 62-38-4

. .... .............. 62-53-3 ........................................... 62-73-7 .......... .............. ............ 62-74-8

. ...... ............ 62-75-9

. .......... ................ 64-00-6

. ....... . .............. 64-86-8 ...................... . ............ 65-30-5 ............. ........................... 65-86-14 ....................................... 66-81-9 ........................................ 67-68-3 ..... ........................... . 71-63-6 ............. . ............. 72-20-8 ............ . ...... ........ 74-83-9. ..... . ............. 74-90-8

. .. .. . ........................ 74-93-1. .................................. 75-15-0

. ....... ........... 75-18-3 ............ . ............. organorhoc Frmaldeh Mitomycin I f comoleJx IPMN-82-1,

irazine. Physostigmine.................... Propiolactone, beta. Physostigmine, salicylate (1: Chlordane............................... Phenoxarsine, 10, 10'-oxydi I i dnn Phenylhydrazine .vdroc.l Maynyorazine. Strychnine, sulfate. Dimethoate............. Phenylmercury ace Aniline..................... Dichlorvos............... Sodium fluoroaceta Nitrosodimethylami Phenol, 3-(f-mthy Colchicine............... Nicotine sulfate.

Hydrocyanic i Methyl merca Carbon disulfi Dimethyl sulfi Liquid

... ........................... Solid

....................... Solid ........--........................... Liqid . ... .................

Lquid.. Solid-. .....................

Solid . .... .. ............. Lquid

Gas Liquid Liquid 2 500 500 a1,000

500 32 500 10,000 10,000 3100

500 3100

100 '100

100 1,000 '100

Soo 100 1.000 500 1.000 1,000

500 100 500 500 1,000 2 500 So0 100 100 10,000

100 10,000 '100 500 1,000

100 500 10,000

100 SI 1,000

.1 I1 ,I 1 '1 100 Si .100

ID 10 ,1 10 10 '1 10 '1 *1 '1 '1 10 10 100 1,000 10 100 10 1 '1 '1 *1 '1 '1 ',000 I0 10 100

1

### 41588 Federal Register / Vol. 51, No. 221 / Monday, November 17, 1986 /*Rules and Regulations

APPENDIX E.-LIST OF EXTREMELY HAZARDOUS SUBSTANCES, THRESHOLD PLANNING QUANTITIES, AND REPORTABLE QUANTITIES-Continued CAS Order] Threshold Reportable CAS No. Chemical name Ambient physical state plarm quantity quanit (pounds) (pounds)

_____ 75-21-8 ............................................... 75-44-5............................................... 75-55-8 .......... ;........................ 75-56-9 ............................................... 75-74-1 ............................................... 75-77-4 ............................................... 75-78-5 ............................................... 75-79-6 .............................................. 75-86-5

.................... 76 -01-7 4........................................... 76-02-8 ............................................... 77-474 ............................................... 77-78-1 ............................................... 77-4 1-6 ............................................... 78-00-2 ............................................... 78-34-2 .............................................. 78-53-5 ............................................... 76-71-7 ............................................... 78-82-0 ............................................... 78-94-4....................... ;....................... 78-97-7 ............................................... 79-06-1 .............................................. 79-11-8 .............................................. 79-19-6............................................... 79-21-0 ............................................... 79-22-1 ............................................ 80-63-7 ............................................... 81-8 1-2............................................... 82-66-6 ............................................... 84-74-2 4............................................ 84-80-0 4........................................... 86-50-0 .............................................. 86-88-4............................................... 87-6-5 ............................................. 88-05-1 ............................................... 88-8 5-7 ............................................... 91-08-7 ............................................... 93-05-0 . ........................................... 95-48-7 ............................................... 95-4&1-6

................... ........ 97-18-7 ............................................... 98-05-5 ............................................... 98-07-7 ............................................... 98-09-9 4............................................ 98-13-5 ............................................... 98-16-8 .. ............... ........................ 98-87-3 ............................................. 98-95-3 ............................................... 99-98-9 ............................................... 100-14-1 .......................................... 100-44-7............................................ 102-36-3 ............................................. 103-85-5 ................................... ...... 106-89-8 ............................................ 106-96-7 ............................................ 106-99-0 4.. ........... .................. 107-02-8 .......................................... 107-07-3 ............................................ 107-11-9 ............................................ 107-12-0............................................. 107-13-1 ............................................ 107-15-3 ............................................. 107-16-4..... ...... ..................... 107-1 - ............................................. 107-20-0 .......................................... 107-30-2 ............................................. 107-44-8............................................ 107-49-3 ............................................. 108-05-4............................................. 108-23-6 ............................................. 108-67-8 4........................................ 108-91-8 ............................................ 108-95-2 .................... 108-98-5.

................... 109-19-3 . ... . ........................ 109-61-5 ............................................ 109-77-3 .......................................... 110-00-9 ........................................... 110-57-

...................... ; ...................... 110-89-4 ............................................ 111-34-2 .......................................... 111-44-4. : .................................. 111-69-3 ............................................. 115-21-9 ............................................. 115-26-4 ............................................. 115-29-7 .............. ...................... 115-90-2 ............................................ 116-06-3

.......................... Oxetane, 3,3-bis(chloromethyl). ................................................................................... Isobutyronitrile .................................................................................................................. Methyl vinyl ketone........................................................................................................... Lactonitile .......................................................................................................................... Acrylamide
......................................................................................................................... Chloroacetic acid............................................................................................................... Thiosemicarbazide
............................................................................................................ Peracetic acid.................................................................................................................... Methyl Chloroformate
....................................................................................................... Methyl 2-chloroacrylate .................................................................................................... Warfarin.................................................................................................................... Diphacinone ...................................................................................................................... Dibutyl phthalate ............................................................................................................... Phylloquinone.................................................................................................................... Azinphos-methyl .............................................................................................................. Antu .................................................................................................................................... Pentachlorophenol .......................................................................................................... Aniline, 2,4,6-trimethyl- .......................................................... 2 ............................ Dinoseb ............................................................................................................................. Toluene 2,6-dssocyanate................................................................................................ Diethyl.p-phenylenediamine ............................................................................................ Cresol, o-................................................................................................................. Pseudocumene ................................................................................................................. Phenol, 2,2'.thlobis(4,6-dichloro- ................................................................................. Benzenearsonic acid ....................................................................................................... Benzotrichloride ........................................................................................................... Benzenesulfony lchloride............................................................................................... Trichlorophenylsilane....................................................................................................... Benzenamine, 3-(trifluoromethyl)- . ............................................................................... Benzal chloride................................................................................................................. Nitrobenzene.................................................................................................................... Dimethyl-p-phenylenediamine

..................... . ............... Benzene, 1-(chloromethyl)-4-nitro- ............................................................................... Benzyl Chloride ................................................................................................................ Isocyanic acid, 3,4-dichlorophenyl ester.................. .............................................. Phenylthiourea ................................................................................................................. Epichlorohydrin................................................................................................................ Propargyl bromide..................................................................................................... Butadiena ................................................................................................................. Acrolein.............................................................................................................................. Chloroethanol ................................................................................................................... Alylarnine ...... ........................................................................................................... Proponitrile ...................................................................................................................... Acrylonitrile............................................................................................................... Ethyenediamine ............................................................................................................... Formaldehyde cyanohyd n............................................................................................. Allylalcohol ... .......................................................... ......................................... Chloroacetaidehyde
......................................................................................................... Chloromethyl methyl ether ........................................................................................ Sarin.................................................................................................................................. Tepp ................................................................................................................................... Vinyl acetate monomer ..................................................................... ;............................. Isopropyl chloroformate ................................................................................................... Mesitylene .................................................................................................. ; ..................... Cyclohexylamine ........................................................................................................ Phenol .................................................................................................................... Thiophenol ............................................................................................................. Butyl isovalerate ............................................................................................................... Propyl chloroformate .......................................................................................................

Butyl virr Dichloro( Adiponitr Trichloro Dimefox Gas............................................... Liquid ................................................... Liquid ................................................... Liquid ................................................... Liquid ................................................... Liquid ................................................... Liquid ................................................... Liquid .................................................. Liquid ............................................. Liquid ................................................... Liquid .................................................. Liquid ................................................... Liquid .................................................. Liquid................................................... Liquid .................................................. Liquid ................................................... Liquid................................................... Liquid ................................................... Liquid ................................................... Liquid ................................................... Solid ..................................................... Solid ..................................................... Solid..................................................... Liquid ................................................... Liquid ................................................... Liquid

.......................... Solid ..................................................... Solid ..................................................... Liquid ................................................... Liquid .................................................. Solid ................................................... Solid .................................................... Solid

...........................;........................ Liquid ................................................. Solid .................................................... Liquid .................................................. Liquid

.......................... Solid ..................................................... Liquid ................................................... Solid ..................................................... Solid..................................................... Liquid

.......................... Liquid .................................................. Liquid................................................... Liquid................................................... Liquid................................................... Liquid ................................................... Solid..................................................... Q--I~

Gas Liquid................................................... Liquid.................................................. Liquid ................................................... Lq d ................................................... Liquid................................................... Liquid................................................... Uquid ................................................... Liquid................................................... Liquid ................................................... iquid ................................................... Liquid ................................................... Liquid ................................................... Liquid . . . . ............. Liquid ................................................... Liquid................................................... Solid ................................................... Liquid ................................................... Liquid ................................................. Liquid

.............................................. Solid .................................................. Liquid .................................................. Liquid

............................ Liquid .................................................. Liquid

.......................... Liquid ............................................. Liquid ................................................. Liquid.................................................. Liquid.................................. Solid ............................................... ; Liquid.................................................. Solid................................................. 1,000 2 10,000 10,000 a100 1,000 10,000 10.000 1,000 10,000

500 500 500 , 2 3100 500 500 500 10,000 2 1,000 1,000

100 100 500 10,000

500 500

2 10,000 10,000 2 500 10.000

500 100 100 10,000 1,000 10,000

100

2 100 10,000 2 500 500 10,000 2 500 500 500 100 1.000 2 10,000

500 5oo 500 500 10,000 10,000 10,000 1,000 10,000

100 .8100 1,000 1,000 10,000 10,000

500 500 10,000

500 500 500 500 1,000 10,000 10,000 1,000 10,000

500

2 1,000 3100 .......................

### Federal Register / Vol. 51, No. 221 / Monday, November 17, 1986 / Rules and Regulations 41589

APPENDIX E.-LIST OF EXTREMELY HAZARDOUS SUBSTANCES, THRESHOLD PLANNING QUANTITIES, AND REPORTABLE QUANTITIES-Continued [CAS Order] Threshold Reportable CAS No. Chemical name Ambient physical state planning quantity quantity (pounds)

_______________________ ________________________________________________________ ____________________ (po(uund)s) 117-52-2 4........... ................. . . 117-84-0 4 ...... ....... ...................... 119-38-0 .......................................... 122-14-5 ............................................. 123-31-9 ............................................. 123-73-9 ............................................. 124-65-2............................................. 124-87-8 ............................................. 126-98-7 ............................................. 128-56-3 4......................................... 129-00-0 ............................................. 129-06-6 ....................................... 131-11-3 4. ...... ........ 131-52-2 ............................................. 140-29-4 ............................................. 140-76-1 ............................................. 141-66-2............................................. 143-33-9......................................... 144-49-0............................................. 149-74-6 ............................................. 151-38-2 ............................................. 151-50-8 ............................................. 151-56-4 ............................................. 152-16-9............................................. 287-92-3 ' .......................................... 297-78-9 ............................................. 297-97-2 ................................. .... 298-00-0

.......... ............ 298-02-2

........... ............ 298-04-4

................................... 300-62-9

................................... 302-01-2

...................................... 309-00-2

..... ............... 315-18-4

........................... .... 316-42-7

.................... ......... 327-98-0

........................... .... 353-42-4

................... ........ 359-06-8

................... 371-62-0

.................... 379-79-3

.......... ............. 465-73-6 ........... .......................... 470-90-6

........... ............ 502-39-6

................................ 504-24-5

............. ............... 505-60-2 .............. ........................ 506-61-6

............. ........... 506-68-3 ............... ....................... 506-78-5

............... . ......... 509-14-8

..... .............. 514-73-8

........... ............ 534-07-6............................................ 534-52-1 ............................................ 535-89-7 ............................................ 538-07-8 ............................................ 541-25-3 ............................................ 541-53-7 ...................................... 542-76-7 ...................................... 542-88-1 ..................................... 542-90-5............................................ 555-77-1 ............................................ 556-61-6 ............................................ 556-64-9

.. ................................. 558-25-8
............................................ 563-12-2 ............................................ 563-41-7 ............................................ 584-84-9............................................ 597-64-8 ............................................ 614-78-8 ............................................ 624-83-9 ............................................ Coumafuryl............................................................................................................ ...... Dioctyl phthalate ................................................................................................... lsopro nYlm ethylovrazolyl dimethylcarbamate .......................................................................

Tetraethyttin .......................... Thiourea, (2-methylphenyl)- Methyl isocyanate................ MUIFE-F UIOU.OIUU. u- .9 -............................................. . u e l uisuul u .... 625-55-8 ............................................ Isopropyl formate.... 627-11-2 ............................................ Chloroethyl chlorofo 630-60-4 ............................................. 633-03-4 4 .......................... 639-58-7 ............................................. 40-15-3 4.......................................... 640-19-7 ............................................. 644-64-4 ............................................. 646-06-0 ........................................... 675-14-9 ............................................. 676-97-1 ............................................. 696-28-6 ............................................. 732-11-6 ............................................. 760-93-0 ............................................. 786-19-6

................................ 814-49-3 ........................................ 814-68-6 ....................................... Ouabain .................... CI.basic green I.... Solid .................................................... Liquid ............ ............................. Liouid ................................................... Solid ..................................................... Liquid ................................................... Hydroquinone................................................................................................................................... Crotonaldehyde, (E...................................................................................................................... Sodium cacodylate ...................................................................................................................... Picrotoxin d................................................................................................................................ M

ethacrylonitrile . .............................................................................................................................. Sodium an thraquinone. -sul onate................................................................................ .............. Pyrene........ ......................................................................................... ;.............. Warfarn n sodium................................................................................ ...................................... Dimethyl phthalate .............................................................................................. .......................... Sodium pentachlorophenate.......................................................................................................... oenzyl cyanide......... ............................................................................ ............................ Pyridine, 2-methyl-5 -viny ............................................................................................................ Picrotophos

.... . . ............................................................................................................ Sodium cyanide (Na(CN)) .............................................................................................................. Fluoro cetic acid

... . ............................................................................................................. Diuhluo rom

ethylphenylsil ne............................................................................................................ M ethloxonethylm eudc acee ........................................................................................................ Methoxyethylmercund c acetate...........................................................................

.................... Potassium cyanide

. ......................................................................................................................... Ethyleneimine .......... ................................................................................................... D iphosphoram ide, octamethyl.. .............................................. ............................................. Cyclopentane ................................................................................................................................... Isoben a n ......................................................................................................................................... Thionazin-..... ............................................................................................................................. Parathion-methyl .............................................................................................................................. Phorate ...................................................................................................... .................................. Disutoton ..................................................... ................................................. ............................ Amphetamine ......................................................................................................................... ........... Hydrazine

. ......................................................................................................................................... All r...... .................................................................................................................................... Me tacarbate ............................................................................................................................ EmeTiln e ihydrochloride................................................................................................................ T chloronate ................................... . .................................................................. Boron triluoride compound with methyl ether (1.1)........................................ .................... Fluoro l chloride ...................................................................................................................... Ethylene luor hydrin ............................................................................................................... Ergotamine tartrate.. ........................................................................................................................ Isodrin...... .................................................................................................................................. Chlor uenvin os .......... ...................................................................................................... M ethylm ercuric dicyanamide
........................................................................ .... .................... Pyri d gine. 4 am ino .. ......................................................................................................................... Mustard gasi............ ............................................................................................................. Potassium silver cyanide ............................................................................................................... Cyanogen bromdide ......................................................................................................................... Cyanogen iodide e ........................................................................................................................... Tetranitromethane e.......................................................................................................................... Dithiazanine iodide. .............................................................................................................. Bis (chlorom ethyl) ketone....................................................

................................................ Dinitrocresol

.......... ....................................................... Cnmidine
............ .................. ............... ............... Ethylbis(2-chloroethyl) amine ...................................................................................................... Lewisite ........................................................................................................... ........................... Dithiobiuret.. 3.ch. oo-................................................................................................................... Propionitrile, 3-chloro......................................................... ......................................................... Chlorom ethyl ether......................................................................................................................... Ethyl thiocyanate am. ne.............................................................................................................. Tris (2-chloroethya t) e................................................... am.......................................
.............. M

ethyl isothiocyanate........................................................... ......................................................... Methyl thi ocyanate ................................................................................................................... Methanesulonryl fluoride................................................................................ Ethion..................................................................... ....................................................... ..... Semicarbazide hydrochloride ........................................................................................................ Toluene 2, 4-diisocyanate ...........................................................................................................

Dimetilan.............................................................................................................. ......... Solid..................................................... Diulane................................................................................................................. ........ Liquid ................................................... Cyanwnc fluoride........................................................................... ... .................... LiqL uid ................................................... Methyl phosphonic dichloride.................

.................................... Solid

.................... .................... Phenyl dichloroarsine .................................................................................................................... Liquid ................................................... r UII ' - .

........ UU Il

. .... ....... .. ..................... I ............ ........ .
ol ..................................................... Solid ..................................................... Liquid ................................................... Solid
.................................................... Solid
..................................................... Solid ..................................................... Liquid ................................................... Solid.................................................... Liquid ................................................... Liquid ................................................... Liquid ................................................... Solid ..................................................... Solid ..................................................... Liquid ................................................... Solid
..................................................... Solid .................................................... Liquid ................................................... Liquid ................................................... Liquid................................................... Solid..................................................... Liquid ................................................... Solid ..................................................... Liquid:.................................................. Liquid ................................................... Liquid ................................................... Liquid .................................................. Solid.................................................... Solid
..................................................... Solid .................................................... Liquid .................................................. Liquid .................................................. Liquid ................................................. Liquid .................................................. Solid .................................................... Solid .................................................... Liquid .................................................. Solid
.................................................... Solid .................................................... Liquid
............................ Solid .................................................... Solid
.................................................... Solid .................................................... Liquid .................................................. Solid .................................................... Solid
.................................................... Solid
.................................................... Solid .................................................... Liquid .................................................. Liquid ................................................... Solid ..................................................... Liquid ................................................... Liquid ................................................... Liquid ................................................... Liquid .......................
........................... Solid ..................................................... Liquid ................................................... Liquid ................................................... Liquid

...................... Solid ..................................................... Liquid ................................................... 10.000 10,000

500' 500 500 1.000 100 500 10,000 10,000 31,000

1.000 10,000

100 1,000 500 100 u 100 2 1,000 500 O 100

500 100 10,000

100 500 3100 2 500 1,000 1,000

500 500 1,000 1,000 1,000

02 32 500 100 500 500 100 1,000 500 500 1,000 500 500

2 2 100 10.000

32 100 1,000 1,000 10,000 1,000 O500 10,000 1,000 1,000 1,000 500 500 3 100

5oo 500 100 500 1,000 3 100 10.000

500 10,000

02 500 10,000

100

- 100 1,000 2 500 500 1,000

500 -W

### 41590 Federal Register [Vol. 

### 51, No. 221 / Monday, November 17, 1986 / Rules and Regulations

APPENDIX E.-LIST OF EXTREMELY HAZARDOUS SUBSTANCES, THRESHOLD PLANNING QUANTITIES, AND REPORTABLE QUANTITIES-Continued (CAS Order] Thre CAS No. Chemical name Ambient physical state plar qua (pou 824-11-3............................................ 919-86-8 ............................................ 920-46-7 ............................................ 944-22-9 ............................................ 947-02-4............................................ 950-10-7 ............................................ 950-37-8............................................ 991-42-4............................................. 998-30-1 ............................................ 999-81-5 .............. ....................... 1031-47-6.................................... 1066-45-1 ........................................... 1122-60-7........................................... 1124-33-0........................................... 1129-41-5 .......................................... 1303-28-2........................................... 1306-19-0........................................... 1314-32-5 4........................................ 1314-56-3 ........................................... os nne ...................................... Fonofos ....................... Phospfolan .................. Mephosfolan ............... Mathidathion ............... Norbormide
................. Triethoxysilane ........... Chlormequat chloride, Tnamiphos ................... Trimethyltin chloride.., Nitrocyclohexane. Pyrdine, 4-nitro-, 1-os Metolcarb ................... Arsenic penloxide Cadmium oxide........... Thallic oxide............... Phosphorus pentoxid 1314-62-1 ............... .................... ... Vanadium 1314--84-7........................................... Zinc phosp 1327-53-3 ........................................... Arsenous o 1331-17-54

................. ..... . Propylene I 1335-87-14 ......................................... Hexachloro 1397-94-0........................................... Antimycin 1405-87-4 4........................................ Bacitracin ,. 1420-07-1

........................................... Dinoterb. 1464-53- ...................... ................. Diepoxyba 1558-25-4 .......................................... Trichloro(cl 1563.-456-2 ........................................... Carbof'uran i 

## ~-c:l-I

......................................... 1622-32-8 ........................................... 1642-54-2 ........................................... 1752-30-3 ........................................... 1910-42-5 ........................................... 1982-47-4 ........................................... 2001-95-8 ........................................... 2032-65-7 ........................................... 2074-50-2 ........................................... Solid
.................................................... Liquid ................................................... Liquid ................................................... Liquid................................................... Solid ..................................................... Liquid .................................................. Solid .................................................... Solid ..................................................... Ii-Ai

............................................................................... ...............................................

........................................................... .id.Solid ..........................................

....................................................................................... Liquid ...................................................

........................................................................... Solid

....................

pentoxide hide ............. :xide ............. glycol, aimyl

Ethanesulfonyl chloride, 2-chloro Diethylcarbamazine citrate............. Acetone thiosemicarbazide............

...an...

Paraquat 2104-64-5 ........................................... EPN:............... 2223-93-0........................................... Cadmium steers 2231-57-4.......................... ............. Thiocarbazide 2235-25-84* ........................................ Ethytrnercuric pt 2238-07-5.......................................... Diglycidyl ether. 2244-16-" 4

................................... Carvone ............. 27 -85........................................... P rhao...... 2524-03-0 ........................................... 2540-82-I ........................................... 2570-26-5........................................... 263 1-37-0........................................... 2636-26-2 ........................................... 2642-71-9 ........................................... 2665-30-7 ........................................... 2703-13-1 ........................................... 2757-18-8 ........................................... 2763-96-4 ... ........ .................. .. . . 2778-04-3 ........................................... 3037-72-7
......................... 3048-114-4

................................. 3254--63-5 ........................................... 3569-57-1 ........................................... 3689-24-5 ........................................... 3691-35-0 ........................................... 3734-97-2 ........................................... 3735-23-7 ....................................... 3878-19-1 ........................................... 4044-5-9 ........................................... 4098-71-9 ........................................... 4104-14-7 ........................................... 4170- 30 .......................................... 4301-50-2 .................................... 4418--66-0 ........................................... 4835-11-4 ........................................... 5281-13-0 ........................................... 5344-82-1 ........................................... 5836-29-3 ........................................... 6533-73-9 ........................................... 6923-22-4 ........................................... 7440-02- ......................................... 744-48-4 4 ........................................ 7446-09-5........................................... 7446-11-9 ............................... ........... 7446-18-6 ........................................... 7487-94-7 ........................................... 7550-45-0.............. ............................ 758 "- 7-8 ........................................... Solid.....................................................

Liquid. Solid QAAi

............................................... . . . . L quid .................................................

........................................................... ...........................................

.......................................................... ............................................

................................................ Liquid

.................................................

..................................................................................... Liquid ........................................ '~~ I i,-idlr

....r... ... •............. ...................... .......................... ......................................................... Phosphonothioic acid, methyl.,0-(4-nitrophenyl) 0-phenyl ester............................................... Phosphonothioic acid, methyl-,O-ethyl 0-(4-(methylthio)phenyl) ester...................................... Thalous maloenate......................................................................................................................... Muscimol .......................................................................................................................................... Endothion ......................................................................................................................................... Silane, (4-aminobutyl)diethoxymethy.. ........................................................................................ Vinylnorbom ene............................................................................................................................... Phosphoric acid, dimethyl 4-(methylthio)phenyl ester................................................................ Suloxide, 3-chloropropyl octyl ...................................................................................................... Sulfotep............................................................................................................................................ Chlorophacinone
.................................................................................................................... Amiton oxalate................................................................................................................................. Methyl phenkapton .................................................................................................................. Fuberidazole .................................................................................................................................... Bitoscanate ...................................................................................................................................... Isophorone diisocyanate ................................................................................................................ Phosacetim ...................................................................................................................................... Crotonaldehyde ............................................................................................................................... Fluenetil ............................................................................................................................................ Phenol, 2,2'-thiobis[4-chloro-8 -methyl-. ....................................................................................... Hexamethylenediamine, N.N'-dibutyl-. ........................................................................................ Piprotal.............................................................................................................................................. Thiourea, (2-chlorophenyl)- . ......................................................................................................... Coumatetralyl ................................................................................................................................... Thallous carbonate........................................................................................................................ Monocrotophos ................................................................................................................... ........... Nickel ............................................................................................................................................... Colbalf .............................................................................................................................................. Sulfur dioxide................................................................................................................................... Sulfur tnoxide................................................................................................................................... Thallous sulfe .................................................. ; ............................................................................ Mercuric chloride.................................................................................................................. Titanium tetrachloride...................... : .............................................................................................. Lithium hydride .............................................................................................................................. Liquid................................................... Liquid ................................................... Solid
..................................................... Solid ..................................................... Solid ..................................................... Liquid ................................................... Liquid................................................... Liquid .................................. ..... Liquid

............................. Liquid................................................... Solid ..................................................... Solid ..................................................... Liquid................................................... Solid ..................................................... Solid
..................................................... Solid .................................................... Solid..................................................... Liquid..................................................

Solid

............................. Solid ..................................................... Gas ....................................................... Solid ..................................................... Solid ..................................................... Solid ..................................................... Liquid ..................................... Solid..................................................... shold nning ntlty xids) 500 500 100 500 100 500 500 100 500 1.000 500 500 500 500 100 100 100 10,000

100 * 500 500 10,000 10,000 31,000

1,000

500 500 100

2 500 500 100 1,000 2 500 91,000

500

2 500 So 100 1,000 1,000 10,000 1,000 10,000

100 1,000 500 100 100 1,000 1,000

100 500 500 3100

500 500 1,000 10,000

500 5oo 500 100 100 500 100 500

- 100

100 1,000

100 100 500 100 100 500 $too

2 10,000 10,000

500 '100

100 500 1 00 Reportable quantity (pounds)

il 1 il il 10 10

10 il il
'1 '1 '1 '1

I1 1 5,000

100 Si 1 1,000

10 =5000

'1 *1 i1 ii
10

10 1 '1 '1

1 '1 1i

'1

*1

'1 '1 ii 100

'1

10

II i1 i1 100 '1 '1 i1 '1 100 '1 =1 21

### Federal Register / Vol. 51, No. 221 / Monday, November 17, 1986 / Rules and Regulations 41591

APPENDIX E.-LIST OF EXTREMELY HAZARDOUS SUBSTANCES, THRESHOLD PLANNING QUANTITIES, AND REPORTABLE QUANTITIES-Continued [CAS Order] Threshold Reportable CAS No. Chemical name Ambient physical state I quantity (pounds) (pounds) 7631-89-2 ............................ . Sodium arsenate........................................................................................................................... 7637-07-2

..................................... 7647-01-0

........................ 7664-39-3.......................................... 7664-41-7

..................... 7664-93-9 .......................................... 7697-37-2......................................... 7719-12-2 .......................................... 7722-84-1
................................. 7723-14-0........................ ..... 7726-95-6

................ 7778-44-1 ........................................... 7782-41-4

..................... 7782-50-5

....................... : Boron rifluoride.................................................................................................................... Hydrogen chloride............................................................................................................... Hydrogen fluoride .................................................................................................................. Ammonia ......................................................................................................................................... Solid

............................. Gas................................................... Gas....................................................... Gas....................................................... Gas....................................................... Phosphorous trichloride................................................................................................................. Liquid ................................................... Hydrogen peroxide (concentration greater than 25% )............................................................. Liquid ................................................... Phoshorus ........................................................... ........................................................................... Solid ..................................................... Fluorine........................... r'hln-in 7783-00-8 . Selenous acid ......................................................................................................................... Solid. 7783-06-4

................... 7783-07-5.......................................... 7783_60-0 ............................. . .. 7783-70-2

.............................. ... 7783-80-4

.................. ....... 7784-34-1

................. ........ 7784-42-1 ........................................... 7784-46-5........................................... 7786-34-7........................................... 7791-12-0........................................... 7791-23-3 ........................................... 7803-51-2 ........................................... 8001-35-2 ........................................... 8023-53-8 4........................................ 8065-48-3 ........................................... 10025-65-7 4...................................... 10025-73-7 ......................................... 10025-87-3 ......................................... 10025-97-5 4

..................... ............ 10026-13-8 ......................................... 10028-15-6 ......................................... 10031-59-1 ......................................... 10049-07-7 4

....................... 10102-18-8 ......................................... 10102-20-2

................. 10102-43-9

........................ 10102-44-0

............................. .... 10124-50-2 ......................................... 10140-87-1 ......................................... 10210-68-1 ......................................... 10265-92-6......................................... 10294-34-5........................................ 10311-84-9......................................... 10476-95-6 ......................................... 12002-03-8 ......................................... 12108-13-3 ........................................ 13071-79-9 ........................................ 13171-21-6 ........................................ 13194-48-4 ........................................ 13410-01-0 ........................................ 13450-90-3 ........................................ 13454-96-1 4

... ............... 13463-39-3 ........................................ 13463-40-6 ........................................ 13494-80-9 ........................................ 14167-18-1 ........................................ 15271-41-7 ........................................ 16752-77-5 ........................................ 16919-58-7 4

................... _................ 17702-41-9 ...................................... 17702-57-7 ........................................ 19287-45-7........................... 19624-22-7 ........................................ 20616-12-0 ..................................... 20830-75-0 4

....................... 20859-73-8 ......................................... 21548-32-3 ......................................... 21548-32- ....................................... 21564-17-0

........................... 21609-90-5

....................... 21908-53-2 ......................................... 21923-23-9 ......................................... 22224-92-6 ......................................... 23135-22-0

........................ 23422-53-9 ......................................... 23505-41-1 ......................................... 24017-47-8 ................................... 24934-91-6 ......................................... 26419-73-8 ......................................... 26628-22-8

....................... 27137-85-5 ....................... ...... 28347-13-9......................................... 28772-56-7 ......................................... 30674-80-7 ...................................... Hydrogen sulfide ................................................................................................................... Hydrogen selenide ......................................................................................................................... Sultur tetrafluoride.............................................................. Antimony pentafluoride..................................................... Tellurium hexafluoride ....................................................... Arsenous trichlorde.......................................................... Gas.......
................ ......................... Gas....................................................... ..................................................................................Gas............................

Sodium arsenite.............................................................................................................................. Mevinphos ....................................................................................................................................... Thallous chloride ............................................................................................................................ Selenium Oxychloride.................................................................................................................... Phosphine

. .......................................................................................... :................................... Camphechlor ................................................................................................................................... Dichlorobenzalkonium chlorde..................................................................................................... Demeton.......................................................................................................................................... Platinous chloride........................................................................................................................... Chromic chloride ............................................................................................................................ Phosphorus oxychloride.............................................................................................................. Iridium tetrachloride ....................................................................................................................... Phosphorus pentachloride............................................................................................................ Ozone .............................................................................................................................................. Thallium sulfate.............................................................................................................................. Rhodium trichloride........................................................................................................................ Sodium selenite .............................................................................................................................. Sodium tellturite................................................................................................................................ Nitdc oxide ....................................................................................................................................... Nitrogen dioxide .............................................................................................................................. Potassium arsenite.......................................................................................................................... Ethanol, 1,2-dichloro-. acetate ...................................................................................................... Cobalt carbonyl ............................................................................................................................... Methamidophos ............................................................................................................................... Boron trichlorde.............................................................................................................................. Dialifos............................................................................................................................................. Methacrolein diacetate .................................................................................................................. Parisgreen ....................................................................................................................................... Manganese, tricarbonyl methylcyclopentadienyl......................................................................... Terbufos .......................................................................................... 1 ................................................ Phosphamidon................................................................................................................................ Ethoprophos ..................................................................................................................................... Sodium selenate.............................................................................................................................. Gallium trichloride ........................................................................................................................ Platinum tetrachloride .................................................................................................................... Nickel carbonyl .............................................................................................................................. Iron, pentacarbonyl . .................................................................................................................... Tellurium.......................................................................................................................................... Salcomine........................................................................................................................................ Bicyclo[2.2.llheptane.2.carbonitrile. 5-chloro-6-((((methylamino)carbonyl)oxy)m ................. Methom l......................................................................................................................................... Liquid............................................ Gas ...................................................... Liquid .................................................. Gas ...................................................... Solid ................................................... Liquid .................................................. Solid
.................................................... Liquid

....................................... ; .......... Gas ...................................................... Solid
..................................................... Solid
..................................................... Liquid ................................................... Solid
..................................................... Solid
..................................................... Liquid ................................................... Solid
.................................................... Solid
.................................................... Gas ...................................................... Solid
.................................................... Solid
.................................................... Solid
.................................................... Solid
.................................................... Gas...................................................... Gas ...................................................... Solid
.................................................... Liquid .................................................. Solid
.................................................... Solid
.................................................... Liquid .................................................. Solid .................................................... Liquid
.................................................. Solid ..................................................... Liquid ................................................... Liquid
................................................... Liquid ................................................... Liquid ................................................... Solid ..................................................... Solid
..................................................... Solid
..................................................... Liquid ................................................... Liquid ................................................... Solid ..................................................... Solid
..................................................... Solid..................................................... Solid
..................................................... Ammonium chloroplatinate

.......................................................................................... ........ ............... ........ I. . ! 2!! .................... e ^;,

Osmium tetroxide........................................................................................................................... Digoxin............................................................................................................................................. Aluminum phosphide ..................................................................................................................... Solid
..................................................... 0--

.;, I FosinieTan........................................................................................................................................ quu ................................................. Thiocyanic acid, 2-(benzothiazolylthio)methyl ester .................................................................. I ntnnhnc Mercuric oxide ................................................................................................................................. Chlorthiophos................................................................................................................................... Fenamiphos ..................................................................................................................................... Oxamyl............................................................................................................................................. Formetanate..................................................................................................................................... Pirimi tos-ethyl ................................................................................................................................... Triazofos ........................................................................................................................................... Chlormephos .................................................................................................................................... Carbamic acid, methyl-, O-(((2.4-dimethyl-t,3-ditholan-2-yl)methylene)amino) . ................... Sodium azide (Na(N )) ................................................................................. ............. Trichloro(dichlorophenyl)silane...................................................................................................... Xylylene dichloride .......................................................................................................................... Bromadiolone................................................................................................................................... Methacryloyloxyethyl isocyanate ................................................................................................... Solid ..................................................... Liquid .................................................. Solid .................................................... Solid .................................................... Solid .................................................... Liquid .................................................. Liquid .................................................. Liquid

. ;... ............. ........................ Solid .................................................... Solid .................................................... Liquid .................................................. Solid

............................. Solid .................................................... Liquid .................................................. 1,000

500 500 100 500 1,000 1,000 1,000 1.000 5500 500 500 100 100 1,000 500

2 100 500

2 500 100 500 500 3100

500 500 500 10,000

500 10,000 2 500 10,000 '500

100 100 10,000

500 500 '100

100 500 1,000

100 100 500 100 1,000

500 10,000

500 100 1,000 100 500 10.000 ' Any

100 500 500 500 1.000 10.000

500 100 100 500 10,000

100 5500

500 10,000

500 500 1,000 2 100 100 1,000

500 500 100 '' 100

500 100 100 500 Le-to-hos.................. ..................................................................................................................... ........... I....................................... Liquid ................................................... 1,000 (d) 11 5,000

100 100 1,000 1,000 1,000

t t '1 21,000 10 10 10 100 11 It '1 21,000 10 100 ,1 100 '1 '1 '1 '1 1,000"

'1 '1 100 '1 100 '1 10 10 '1,000 '1 '1 *1 '1 'I '100

'1 i1 '1 '1 '1 '1 '1 '1 't '1 1 ]1 *1 '1 '1 '1 1,000

'1 100 '1 '1 '1

'1 '1 1,000

i1 i! '1 ii

### 41592 Federai Register / Vol. 51,1 No. 221 / Monday, November 17, 1986 / Rules and Regulations

APPENDIX E.-LIST OF EXTREMELY HAZARDOUS SUBSTANCES, THRESHOLD PLANNING QUANTITIES, AND REPORTABLE QUANTITIES-Continued [CAS Order] Threshold Reportable CAS No. Chemical name Ambient physical state planning (pounds) (o 39196-18-4......................................... Thiofanox........................................................................................................................................ Solid ................................................... 100 10 50782-69-9

................ Phosphonothioic acid, methyl-, S-(2-(bis(.methylethyl)amino)ethyl) 0-ethyl ester............... Liquid

............................ : 100 53558-25-1. ........................................ Pyrim i l............................................................................................................................................ Solid ..................................................... 1.000 58270-08-9

................ Zinc. dichloro(44-dimethyl-5(((methylamino) carbonyl)oxy)imino)pentanenitile .................. Solid

.................................................... 100 62207-76-5

................ Cobalt, (2,2'.1,2-ethanediylbis (nitrilomethylidyne))bis(6-fluorophrenolato))(2

......... Solid

....................... 100 Statutory reportable quantity for purposes of emergency notification under SARA section 304(a)(2). Indicates thatthe reportable quantity is subject to change when the assessment of potential carcinogenicity and/or chronic toxicity iscompleted. The calculated threshoid quantity changed after technical review as described inthe text. 4This chemical is proposed for deletion from list. Threshold planning quantity is inthe interim assigned to the category of lowest concern, 10,000 pounds. 6 This material is areactive solid. The threshold planning quantity will not become 10,000 pounds for the non-powder form. 8The statutory one-pound reportable quantity for methyl isocyanate under CERCIA section 102(b) may be adjusted in a future rulemaking action. [FR Doc. 86-25959 Filed 11-14-86; 8:45 am] BILLING CODE 6560-50-M