Greenhouse Gas Reporting Help

Using e-GGRT to Prepare Your Subpart HH Report

Created by Peter Kobylarek, last modified by Mark Palmer on Nov 06, 2015

If you reported for the previous reporting year, the Agency has carried some of your data from last year into the current reporting year to reduce the reporting burden. It is still your responsibility to review and ensure that all of the information in your submission is correct, but the Agency believes that most of the data that is carried forward is unlikely to change significantly from year to year. For more information about carry forward data, please see the Carry forward of data from previous submissions help content

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 the prior reporting year, most historical data will be prepopulated in your current report. See the Carry forward of data from previous submissions for details.

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

The following MSW landfill information is collected for Subpart HH on the Landfill Details - Reporting Years page

An indication of whether the landfill was open or closed in the reporting year. A landfill is considered open if it is actively receiving waste in the reporting year. A landfill that closed during the reporting year, but also received waste during the reporting year is considered open for the particular reporting year. A landfill is considered closed if it did not receive waste in the reporting year.
- Indicate the year in which the landfill first started accepting waste for disposal.
- If the landfill was open in the reporting year, indicate the year in which the landfill is expected to close.
- If the landfill was closed prior to and not during the reporting year, indicate the last year that the landfill accepted waste.

Waste Disposal Quantities and Methods Since the First year of Reporting

The reporter is then shown the first year of emissions reporting that occurred under Part 98 for the facility (i.e., 2010, 2011, 2012 or 2013).

If the landfill was open during any reporting years, the method(s) used to determine the quantity of waste received at the landfill during the reporting year(s) must be indicated for loads other than cars, light duty trucks, and loads that cannot be measured with scales due to physical or operational limitations. Choose from one of the following methods (from §98.343(a)(3)) by checking the appropriate box:

Used scales to weigh each load before off-loading at the landfill and either used scales to weigh individual loads after off-loading or used a representative tare weight for the weight of the vehicle/container after off-loading at the landfill. According to §98.343(a)(3)(i)(B), the tare weight is determined by weighing no less than five of each type of vehicle or container after it has off-loaded the waste.
Used vehicle/container working capacity, for example by using volumetric capacity and waste density measurements, for each container/vehicle used to haul waste to the landfill (§98.343(a)(3)(ii)). The working capacity means the maximum volume of mass of waste that is actually placed in the landfill from an individual or representative container (such as a tank, truck, or roll-off bin) used to convey wastes to the landfill, taking into account that the container may not be able to be 100 percent filled and/or 100 percent emptied for each load.

Note that the "Other" method was only available for the 2010 reporting year and only for facilities that were approved by EPA to use Best Available Monitoring Methods (BAMM).

Per §98.343(a)(3), beginning in the first emissions reporting year, and each year thereafter, waste quantities must be determined using one of the methods listed above. If scales are in place at the landfill, they must be used to determine waste quantities for the first emissions reporting year and each year after.

Additionally, the total annual waste disposal quantity(ies) in metric tons must be reported for each year and method.

If you reported or resubmitted prior to the current reporting year, the methods and waste disposal quantity(ies) from prior years will be automatically populated and you will only need to enter data for the current reporting year. It is recommended that you review all automatically populated data to ensure its continued accuracy.

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

Waste Characterization Information

If you reported or resubmitted prior to the current year, the waste characterization information for each year prior to the current reporting year should be automatically populated and you will only need to enter new data for the current reporting year based on the instructions below. However, you should review the data that appears for all years to ensure its accuracy. For more on the historical migration of data, see Carry forward of data from previous submissions.

For each year that waste was disposed in your landfill, you will be prompted to enter the following information:

Indicate if a missing data procedure was used to determine the annual waste quantity for that year. Missing data procedures may be found in §98.345.
- If a missing data procedure was used, enter the number of days that substitute data was used to determine the waste quantity.

Identify each of the waste types comprising that year’s waste quantity. A facility must use one of the 3 options from Table HH-1: Bulk waste option, Modified bulk MSW option, or Waste composition option. If the Modified bulk MSW or Waste Composition option is chosen, check all applicable boxes within that option:
- Bulk waste option
- Modified bulk MSW option:
  - Bulk MSW waste (excluding inerts and C&D waste)
  - Bulk C&D waste
  - Inerts (e.g. glass, plastics, metal, cement)
- Waste composition option:
  - Food waste
  - Garden
  - Sewage sludge
  - Paper
  - Wood and straw
  - Textiles
  - Diapers
  - Inerts (e.g., glass, plastics, metal, cement)

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.

Emissions Information

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 HH-4, HH-5, HH-6, HH-7, and HH-8).

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

Please go to Subpart HH Emissions Information for more details.

Validation Report

The Validation Report assists you with determining the completeness and quality of your reported data.

We strongly encourage you to use the Validation Report to check your work. The Validation Report performs two types of checks:

Data Completeness: Data required for reporting that are missing or incomplete.
Data Quality: Data that are outside of the expected range of values.

Certain validation checks which are considered to represent critical errors must be corrected before you can successfully generate and submit your Annual Report. These checks are signified with a stop sign . If you feel that you have triggered one of these critical “stop signs” checks in error, or if there’s a reason why your report should be submitted despite the check being triggered, please submit a request to the e-GGRT Help Desk at GHGReporting@epa.gov.

You may view the Validation Report at any time.

Note that the Validation Report is intended to assist users in entering data, but it is not an indication that the reporter has entered all necessary information, nor is it an indication that the reporter is in compliance with part 98. Furthermore, a negative finding on the validation report is not a guarantee that a data element was entered incorrectly. For more detail on the Validation Report and its functionality please review the Subpart Validation Report page.

Carry Forward of Data from Previous Subpart HH Submissions into Current Year Forms

Please go to Carry forward of data from previous submissions for more details.