Using e-GGRT to Prepare Your Subpart HH Report

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Subpart HH applies to municipal solid waste (MSW) landfills that accepted waste on or after January 1, 1980.

This page provides an overview of sub-topics that are central to Subpart HH reporting:

The end of this page contains links you can use for more information on these topics.

If you reported in RY2011the prior reporting year, most historical data will be prepopulated in your RY2012 current report. See the Carry forward of data from previous submissions into RY2012 forms for details.

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Composition Setup

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If this is is the first time you have reported under Subpart HH you will be presented with the following initial screen:

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If you have previously reported Subpart HH or have already entered your landfill details you will initially see a screen with a number options and reporting components available as shown in the screen below.  This screen, the Subpart HH Overview screen, is your portal to each of the individual Subpart HH reporting modules.

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Landfill Details
Landfill Details

Landfill Details

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Subpart HH

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Landfill Details
Subpart HH Landfill Details
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Waste Disposal Quantities and Methods Prior to the First Year of Reporting

If you reported or resubmitted prior to the current reporting year, all of the waste disposal quantities and methods information will be automatically populated in your current year’s report and you will only need to review the information for correctness and completeness. For more on the historical migration of data, see Carry forward of data from previous submissions.

If this is your first year of reporting, you will need to indicate the methods used to determine the annual waste disposal quantities in the current year and all prior years.  You will also need to report the annual waste disposal quantities for each year.  Similar to the requirements since the first year of emissions reporting, the annual waste disposal quantities must be reported separately if scales and working capacity were used.  Annual waste disposal quantities determined using all other methods are reported together. 

Please go to Subpart HH Landfill Details for more details

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Waste Characterization Information
Waste Characterization Information

Waste Characterization Information

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Waste Information
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Subpart HH Waste Characterization Information

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Subpart HH Waste Characterization Information
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Additional information about the waste disposed at the facility is also collected in this section. Please go to Subpart HH Waste Characterization Information for more details.

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Emissions Information
Emissions Information

Emissions Information
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Landfills that do not have a landfill gas collection system are required to report annual CH4 emissions and CH4 generation (i.e., the modeled methane generation, calculated using Equation HH-1 of this subpart, and the CH4 generation, adjusted for oxidation, calculated using Equation HH-5 of this subpart), reported in metric tons of CH4.

Landfills that have a landfill gas collection system are required to report modeled and measured CH4 generation and CH4 emissions values (i.e., Equations

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Equations include: HH-1, HH-3, HH-4, HH-5, HH-6, HH-7, and HH-8).

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You will be allowed to elect to use either the rounded result of Equation HH-6 (as calculated and rounded by e-GGRT, unless entered by the user) or the rounded result of Equation HH-8 (as calculated and rounded by e-GGRT, unless entered by the user) to roll up into your total CO{~}2~e emissions from facility subparts as required by 98.3(c)(4)(i). If you make no election, e-GGRT will use the larger of the two rounded values.  To override the Subpart HH emissions totals:

  • Go to the Facility Overview page (click on the blue box at the bottom left corner of the Subpart Overview page)
  • Click on “VIEW GHG DETAILS” at the bottom of the blue box with the calculators on the upper right side of the page
  • Click “Edit result(s)” under the table titled “GHGDETAILS (source categories subparts C-HH)”
  • Choose the row for Subpart HH CH4 and enter the value of the more accurate equation result in the “Own Result” box.  You may only use either the result of Equation HH-6 or Equation HH-8 in this value.  You may not use a value other than one of these two equation results as your Subpart HH emission total. 
  • Click “SAVE” at the bottom of the page

Additional information about emissions at the facility is also collected in this section. Please go to Subpart HH Emissions Information for more details.

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Validation Report
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Carry Forward of Data from Previous Subpart HH Submissions into Current Year Forms
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Landfill Operating Data from Prior to Reporting Under Part 98 Carry-over

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Landfill Operating Data from Prior to Reporting Under Part 98 Carry-over

If you reported historical data prior to RY2012, your data will automatically be migrated to your RY2012 report. This includes data for the historical waste quantity estimation method, landfill gas collection system, waste disposal information, and waste type details. Historical data should be verified for completeness and accuracy.  Please go to Carry forward of data from previous submissions into RY2012 forms for more details.

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See Also

Screen Errors
Subpart HH Summary Information for this FacilityLandfill Details
Subpart HH Waste Characterization Information
Subpart HH Emissions Information
Subpart Validation Report

This web site is maintained by a contractor to the U.S. Environmental Protection Agency (RY2023.R.01)