New Jersey Administrative Code
Title 7 - ENVIRONMENTAL PROTECTION
Chapter 31 - TOXIC CATASTROPHE PREVENTION ACT PROGRAM
Subchapter 4 - MINIMUM REQUIREMENTS FOR A PROGRAM 3 TCPA RISK MANAGEMENT PROGRAM
Section 7:31-4.2 - Process hazard analysis with risk assessment for specific pieces of EHS equipment or operating alternatives

Universal Citation: NJ Admin Code 7:31-4.2

Current through Register Vol. 56, No. 24, December 18, 2024

(a) The provisions of this section apply in addition to those in 40 CFR 68.67 with changes specified at N.J.A.C. 7:31-4.1(c)5 through 7.

(b) The owner or operator of a covered process shall perform a process hazard analysis with risk assessment which shall include the following:

1. Identification of EHS equipment subject to the assessment, the points of possible EHS release, the corresponding approximate quantity of an instantaneous EHS release or the rate(s) and duration of a continuing EHS release, either steady or non-steady state, and the corresponding cause of the EHS release. Estimates of the quantity or rate and duration of a release shall be based on actual release mechanisms and shall reflect the operating procedures, safeguards, and mitigation equipment and procedures, planned for new or modified covered processes, or in place for existing covered processes.

2. Consideration of toxicity, flammability, explosion and reactivity hazards applicable to the EHS; however, consideration of toxicity shall be required only for those EHSs which appear in N.J.A.C. 7:31-6.3(a), Table I, Parts A and/or B as a toxic substance. The owner or operator shall consider both the explosive/flammability hazard and the capability to generate a toxic EHS, as applicable to the RHS or RHS mixture and process in which it is handled; and

3. Identification of all scenarios of toxic, flammable, and reactive hazards that have a potential offsite impact for the endpoint criteria at (b)3iii below using a consequence analysis, consisting of dispersion analysis, thermal analysis and overpressure analysis, as applicable to the EHS and scenario. The following parameters shall be used for the consequence analysis:

i. 1.5 meters per second wind speed measured at 10 meters height and F atmospheric stability class;

ii. All parameters listed for alternative scenarios at 40 CFR 68.22(c) through (g); and

iii. As applicable to the scenario being analyzed, the endpoint criteria of five times the toxicity endpoint as designated at N.J.A.C. 7:31-2.1(c)2; five kW/m[2] for 40 seconds; the lower flammability limit; or 2.3 psi overpressure. As an alternative to using the five times toxicity endpoint as designated at N.J.A.C. 7:31-2.1(c)2, the value of the ATC may be used for toxic release scenarios.

(c) The owner or operator shall identify all release scenarios that have an offsite impact of the endpoint criteria specified at (b)3iii above.

1. For each release scenario that has an offsite impact of the endpoint criteria specified at (b)3iii above, the owner or operator shall determine the likelihood of release occurrence. If the likelihood of release occurrence is greater than or equal to 10[LESS THAN]-6[GREATER THAN] per year, the owner or operator shall perform an evaluation of risk reduction measures which would reduce the likelihood or consequences of an EHS release. If the frequency of release occurrence is less than 10[LESS THAN]-6[GREATER THAN] per year, no further assessment is required.

2. The owner or operator shall develop and implement a risk reduction plan for feasible risk reduction measures determined pursuant to (c)1 above.

(d) The following documentation from the process hazard analysis with risk assessment shall be maintained:

1. Table(s) of the process hazard analysis results giving the release point and corresponding release scenario of the potential basic (initiating) and intermediate event sequences, the corresponding estimated quantity or rate and duration of releases, and the recommended resolution action based upon 40 CFR 68.67(e);

2. Table(s) summarizing each potential offsite release scenario identified that includes:

i. A scenario identification number and brief description;

ii. The rate and duration, or quantity, of potential release;

iii. The distance to the endpoint determined in (b)3iii above and the respective distance to the nearest property line; and

iv. The release likelihood determined pursuant to (c)1 above.

3. Information from the consequence analysis modeling that includes:

i. The identification of the consequence analysis model used; and

ii. Printouts of the consequence analysis model inputs and outputs, if a consequence analysis model other than the lookup tables provided in the EPA's RMP Offsite Consequence Analysis Guidance current as of the time of modeling was used;

4. Documentation to justify the determination of why risk reduction measures are not feasible; and

5. A statement of completion for each risk reduction measure in the risk reduction plan or an explanation of any changes made for each measure in the risk reduction plan.

(e) The owner or operator of a covered process shall prepare a report of the process hazard analysis with risk assessment. The report shall include the following:

1. An identification of the covered process that is the subject of the process hazard analysis with risk assessment; the name, position and affiliation of persons who performed the process hazard analysis with risk assessment; the date of completion; and the methodology used;

2. A description of each scenario identified in (b)3iii above; and

3. The risk reduction plan developed pursuant to (c)2 and (d)1 above.

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