40 CFR Part 98, Subpart HH, Table HH-1 to Subpart HH of Part 98 - Emissions Factors, Oxidation Factors and Methods

Status message

There are 4 Updates appearing in the Federal Register for 40 CFR 98. View below or at eCFR (GPOAccess)
prev | next
View PDF at GPO Pt. 98, Subpt. HH, Table HH-1
Table HH-1 to Subpart HH of Part 98—Emissions Factors, Oxidation Factors and Methods
Factor Default value Units
a Recirculated leachate (in inches/year) is the total volume of leachate recirculated from company records or engineering estimates divided by the area of the portion of the landfill containing waste with appropriate unit conversions. Alternatively, landfills that use leachate recirculation can elect to use the k value of 0.057 rather than calculating the recirculated leachate rate.
b Use the lesser value when precipitation plus recirculated leachate is less than 20 inches/year. Use the greater value when precipitation plus recirculated leachate is greater than 40 inches/year. Use the average of the range of values when precipitation plus recirculated leachate is 20 to 40 inches/year (inclusive). Alternatively, landfills that use leachate recirculation can elect to use the greater value rather than calculating the recirculated leachate rate.
c Use the lesser value when the potential evapotranspiration rate exceeds the mean annual precipitation rate plus recirculated leachate. Use the greater value when the potential evapotranspiration rate does not exceed the mean annual precipitation rate plus recirculated leachate. Alternatively, landfills that use leachate recirculation can elect to use the greater value rather than assessing the potential evapotranspiration rate or recirculated leachate rate.
DOC and k values—Bulk waste option
DOC (bulk waste) 0.20 Weight fraction, wet basis.
k (precipitation plus recirculated leachate a <20 inches/year) 0.02 yr −1
k (precipitation plus recirculated leachate a 20-40 inches/year) 0.038 yr −1
k (precipitation plus recirculated leachate a >40 inches/year) 0.057 yr −1
DOC and k values—Modified bulk MSW option
DOC (bulk MSW, excluding inerts and C&D waste) 0.31 Weight fraction, wet basis.
DOC (inerts, e.g., glass, plastics, metal, concrete) 0.00 Weight fraction, wet basis.
DOC (C&D waste) 0.08 Weight fraction, wet basis.
k (bulk MSW, excluding inerts and C&D waste) 0.02 to 0.057 b yr −1
k (inerts, e.g., glass, plastics, metal, concrete) 0.00 yr −1
k (C&D waste) 0.02 to 0.04 b yr −1
DOC and k values—Waste composition option
DOC (food waste) 0.15 Weight fraction, wet basis.
DOC (garden) 0.2 Weight fraction, wet basis.
DOC (paper) 0.4 Weight fraction, wet basis.
DOC (wood and straw) 0.43 Weight fraction, wet basis.
DOC (textiles) 0.24 Weight fraction, wet basis.
DOC (diapers) 0.24 Weight fraction, wet basis.
DOC (sewage sludge) 0.05 Weight fraction, wet basis.
DOC (inerts, e.g., glass, plastics, metal, cement) 0.00 Weight fraction, wet basis.
k (food waste) 0.06 to 0.185 c yr −1
k (garden) 0.05 to 0.10 c yr −1
k (paper) 0.04 to 0.06 c yr −1
k (wood and straw) 0.02 to 0.03 c yr −1
k (textiles) 0.04 to 0.06 c yr −1
k (diapers) 0.05 to 0.10 c yr −1
k (sewage sludge) 0.06 to 0.185 c yr −1
k (inerts e.g., glass, plastics, metal, concrete) 0.00 yr −1
Other parameters—All MSW landfills
MCF 1.
DOCF 0.5
F 0.5
OX 0.1
DE 0.99
[75 FR 66473, Oct. 28, 2010]

Title 40 published on 2014-07-01

The following are only the Rules published in the Federal Register after the published date of Title 40.

For a complete list of all Rules, Proposed Rules, and Notices view the Rulemaking tab.

  • 2014-12-11; vol. 79 # 238 - Thursday, December 11, 2014
    1. 79 FR 73750 - Greenhouse Gas Reporting Program: Addition of Global Warming Potentials to the General Provisions and Amendments and Confidentiality Determinations for Fluorinated Gas Production
      GPO FDSys XML | Text
      ENVIRONMENTAL PROTECTION AGENCY
      Final rule.
      This final rule is effective on January 1, 2015.
      40 CFR Part 98

This is a list of United States Code sections, Statutes at Large, Public Laws, and Presidential Documents, which provide rulemaking authority for this CFR Part.

This list is taken from the Parallel Table of Authorities and Rules provided by GPO [Government Printing Office].

It is not guaranteed to be accurate or up-to-date, though we do refresh the database weekly. More limitations on accuracy are described at the GPO site.


United States Code

Title 40 published on 2014-07-01

The following are ALL rules, proposed rules, and notices (chronologically) published in the Federal Register relating to 40 CFR 98 after this date.

  • 2014-12-11; vol. 79 # 238 - Thursday, December 11, 2014
    1. 79 FR 73750 - Greenhouse Gas Reporting Program: Addition of Global Warming Potentials to the General Provisions and Amendments and Confidentiality Determinations for Fluorinated Gas Production
      GPO FDSys XML | Text
      ENVIRONMENTAL PROTECTION AGENCY
      Final rule.
      This final rule is effective on January 1, 2015.
      40 CFR Part 98