Prior Year - Well Testing

Please see Reporting Form Instructions on downloading the blank reporting form and uploading the completed reporting form.
You may also refer to Optional Calculation Spreadsheet Instructions to download the Subpart W calculation spreadsheet.

This page provides an overview of the Subpart W well testing source category e-GGRT reporting requirements.

The well testing source category is applicable to Onshore Petroleum and Natural Gas Production.

Indicate if the facility has the source type via the radio buttons.
  • If the source type is present you must report required elements.

If the facility has the source type, the Best Available Monitoring Methods and Missing Data table must be completed.
Reporting Requirements

For well testing venting and flaring, the facility is required to report:

  • The unique identity of the basin (98.236(c)(10)) - this data element is automatically populated using data from the Sub-Basin Selection tab.  Please verify that the basin ID is correct.
  • Number of wells tested in calendar year (98.236(c)(10)(i))
  • Average gas to oil ratio (98.236(c)(10)(ii))
  • Average number of days the wells were tested (98.236(c)(10)(iii))
  • Total annual CO2 emissions for the entire facility, from well testing venting (98.236(c)(10)(iv))
  • Total annual CH4 emissions for the entire facility, from well testing venting (98.236(c)(10)(iv))
  • Total annual CO2 missions for the entire facility, from well testing flaring (98.236(c)(10)(v))
  • Total annual CH4 emissions for the entire facility, from well testing flaring (98.236(c)(10)(v))
  • Total annual N2Oemissions for the entire facility, from well testing flaring (98.236(c)(10)(v))

Total Emissions

The total emissions roll-up at the top of the sheet reflects the sum of the CO2 equivalents of each gas emission reported for the source type.  These summations are reflected and aggregated on the Introduction tab.

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