40 CFR 63.5710 - How do I demonstrate compliance using emissions averaging?

§ 63.5710 How do I demonstrate compliance using emissions averaging?

(a) Compliance using the emissions averaging option is demonstrated on a 12-month rolling-average basis and is determined at the end of every month (12 times per year). The first 12-month rolling-average period begins on the compliance date specified in § 63.5695.

(b) At the end of the twelfth month after your compliance date and at the end of every subsequent month, use equation 1 of this section to demonstrate that the organic HAP emissions from those operations included in the average do not exceed the emission limit in § 63.5698 calculated for the same 12-month period. (Include terms in equation 1 of § 63.5698 and equation 1 of this section for only those operations and materials included in the average.)

Where:
HAP emissions= Organic HAP emissions calculated using MACT model point values for each operation included in the average, kilograms.
PVR = Weighted-average MACT model point value for production resin used in the past 12 months, kilograms per megagram.
MR = Mass of production resin used in the past 12 months, megagrams.
PVPG = Weighted-average MACT model point value for pigmented gel coat used in the past 12 months, kilograms per megagram.
MPG = Mass of pigmented gel coat used in the past 12 months, megagrams.
PVCG = Weighted-average MACT model point value for clear gel coat used in the past 12 months, kilograms per megagram.
MCG = Mass of clear gel coat used in the past 12 months, megagrams.
PVTR = Weighted-average MACT model point value for tooling resin used in the past 12 months, kilograms per megagram.
MTR = Mass of tooling resin used in the past 12 months, megagrams.
PVTG = Weighted-average MACT model point value for tooling gel coat used in the past 12 months, kilograms per megagram.
MTG = Mass of tooling gel coat used in the past 12 months, megagrams.

(c) At the end of every month, use equation 2 of this section to compute the weighted-average MACT model point value for each open molding resin and gel coat operation included in the average.

Where:
PVOP = weighted-average MACT model point value for each open molding operation (PVR, PVPG, PVCG, PVTR, and PVTG) included in the average, kilograms of HAP per megagram of material applied.
Mi = mass of resin or gel coat i used within an operation in the past 12 months, megagrams.
n = number of different open molding resins and gel coats used within an operation in the past 12 months.
PVi = the MACT model point value for resin or gel coat i used within an operation in the past 12 months, kilograms of HAP per megagram of material applied.

(d) You must use the equations in Table 3 to this subpart to calculate the MACT model point value (PVi) for each resin and gel coat used in each operation in the past 12 months.

(e) If the organic HAP emissions, as calculated in paragraph (b) of this section, are less than the organic HAP limit calculated in § 63.5698(b) for the same 12-month period, then you are in compliance with the emission limit in § 63.5698 for those operations and materials included in the average.

[ 66 FR 44232, Aug. 22, 2001; 66 FR 50504, Oct. 3, 2001]

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United States Code

Title 40 published on 19-May-2018 05:22

The following are ALL rules, proposed rules, and notices (chronologically) published in the Federal Register relating to 40 CFR Part 63 after this date.

  • 2018-05-16; vol. 83 # 95 - Wednesday, May 16, 2018
    1. 83 FR 22754 - National Emission Standards for Hazardous Air Pollutants: Surface Coating of Wood Building Products Residual Risk and Technology Review
      GPO FDSys XML | Text
      ENVIRONMENTAL PROTECTION AGENCY
      Proposed rule.
      Comments. Comments must be received on or before June 15, 2018 unless a public hearing is requested by May 21, 2018. If a public hearing is requested, comments must be received on or before July 2, 2018. Under the Paperwork Reduction Act (PRA), comments on the information collection provisions are best assured of consideration if the Office of Management and Budget (OMB) receives a copy of your comments on or before June 15, 2018. Public Hearing. If a public hearing is requested by May 21, 2018, then we will hold a public hearing on May 31, 2018 at the location described in the ADDRESSES section. The last day to pre-register in advance to speak at the public hearing will be May 29, 2018.
      40 CFR Part 63

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