Adding or Updating Summary Information for this Facility

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To add or modify Subpart HH reporting years summary information for this MSW landfill, press the OPEN button located opposite “Landfill Details Reporting Years.”

Landfill Details Reporting Years must be populated before other information about the landfill and its emissions can be entered.

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If you changed methods used for determining the waste disposal quantities during the reporting year, answer the question above by reporting the method used at the end of the reporting year. In addition, provide an explanation as to why you changed methods, for example, scales were installed at your facility mid-year. Please provide this explanation in the Subpart A text box that requests an explanation of changes to calculation methodologies.

After entering information on waste disposal quantities and methods, enter the landfill capacity in metric tons.

Indicate if passive vents and/or flares are present (other than as part of a gas collection system, as defined below) (check the box if passive vents and/or flares are present).

Indicate if leachate recirculation is used at the landfill during the emissions reporting year (check the box if leachate recirculation is used).

If leachate recirculation is used, indicate the typical frequency with which it is used over the past 10 years. Choose one of the following:

• Used several times a year for the past 10 years
• Used at least once a year for the past 10 years
• Used occasionally (but not every year) over the past 10 years

Indicate if scales are present at the landfill in the reporting year (check box if scales are present).

Cover Materials

Identify each type of cover material in use at the landfill. Indicate the surface area of the landfill containing waste in square meters associated with the following types of cover material (more than one type of cover may be selected):

• Organic
• Clay
• Sand
• Other soil mixture (this should be selected for any cover type other than organic, clay, or sand)

Landfill Gas Collection System

A landfill gas collection system means a system of pipes used to collect landfill gas from different locations in the landfill by means of a fan or similar mechanical draft equipment to a single location for treatment or use. A single landfill may have multiple gas collection systems. Landfill gas collection systems do not include “passive” systems, whereby landfill gas flows naturally to the surface of the landfill where an opening or pipe (vent) is installed to allow for natural gas flow.

Indicate if the landfill has a gas collection system on the "Landfill Details Reporting Year" page (check the box if there is a gas collection system).

If the landfill has a landfill gas collection system, indicate the manufacturer of the gas collection system, the capacity of the system in actual cubic feet per minute (acfm), the number of wells present at the landfill, and the annual operating hours for the system. For manufacturer of the gas collection system, indicate the entity that designed the gas collection system and the entity that installed the gas collection system. If this information is not available, report the manufacturer of the blower. Do not use this space to indicate the manufacturer of the flares in the place at the landfill. Also do not use this space to indicate the brand of measurement equipment used to monitor landfill gas flow or methane concentration.

Historical Waste Disposal Quantity Methods

To add or modify Subpart HH historical years summary information for this MSW landfill, press the OPEN button located opposite “Landfill Details Historical Years.”

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If you reported prior to RY2012, the historical waste disposal quantity methods should be automatically populated in the "Landfill Details Historical Years" page, and you will only need to enter data for RY 2012 based on the instructions below. For more on the historical migration of data, see Carry forward of data from previous submissions into RY2012 forms. There are several means by which the quantities of waste disposed of prior to 2012 may have been determined or estimated for purposes of the Greenhouse Gas Reporting Program: (1) determined using scales; (2) estimated from tipping receipts, other company records, or measured working capacities; or (3) estimated from one of the methods found in Section 98.343(a)(4), i.e., methods #1, 2, and 3 listed below. Reporters must indicate which method(s) was used to determine or estimate historical waste disposal quantities and the range of years in which that method was used.

Indicate (yes/no) if scales were used to determine waste disposal quantities for loads other than cars, light duty trucks, and loads that cannot be measured with scales due to physical or operational limitations prior to 2012.

If scales were used, indicate the year they started being used and the year they stopped being used.

Indicate (yes/no) if tipping receipts, other company records, or measured working capacities were used to estimate waste disposal quantities prior to 2012.

If tipping receipts, other company records, or measured working capacities were used to estimate waste disposal quantities prior to 2012, indicate the year in which they started being used and the year in which they stopped being used.

Indicate the method used to estimate all annual waste quantities that were not determined with scales or estimated through tipping receipts, other company records, or measured working capacities. Per §98.343(a)(4), one of the following methods may be used to estimate waste quantities, if none of these methods were used, select “None.” If all waste quantities were either determined using scales or estimated using tipping receipts, other company records, or measured working capacities, select “None”:

• Method #1: Assume all prior year’s waste disposal quantities are the same as the waste quantity in the first year for which the waste quantities are available.

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• Method #2: Use the estimated population served by the landfill in each year, the values for national average per capita waste generation, and fraction of generated waste disposed of in solid waste dispoal sites (Equation HH-2).
  • If this method is selected, report the population served by the landfill for each year the Equation HH-2 of this subpart is applied.

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• Method #3: Use the landfill capacity or, for operating landfills, the amount of waste-in-place to estimate a constant average waste disposal quantity per Equation HH-3. The amount of waste-in place is the capacity of the landfill used at the end of the year prior to the year when waste disposal data are available. The waste-in-place numbers may be derived from design drawings or engineering estimates.
  • If this method is selected to be the method by which historical waste disposal quantities were estimated, indicate the capacity of the landfill in metric tons.

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If one of the above methods was used (i.e., “None” was not selected), indicate the year in which the method started being used and the year in which it stopped being used.

If one of the above methods was used (i.e., “None” was not selected), indicate the reason for which this particular method was selected.

When you have entered the required information, click SAVE. You will be brought back to the top of the Landfill Details page at which time you may check over the information you entered. When you have completed your check, click SUBPART OVERVIEW to return to the Subpart Overview page.

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See Also

Screen Errors
Using e-GGRT to Prepare Your Subpart HH Report
Subpart HH Waste Information
Subpart HH Emissions Information
Subpart Validation Report