2014 Oil and Gas Emissions Inventories

Introduction

This page contains links to all of the WAQS emissions data for oil and gas sources in the Intermountain West. The inventory data will be used for WAQS 2014 (base year) modeling.

Inventories

The inventories are a mix of permitted (point) and survey-based (non-point) annual emissions. Descriptions of the files and file formats are provided below.

Inventory Summaries

The table below includes links to spreadsheets of the base year (2014) WAQS emissions inventories for selected oil and gas development basins. Brief descriptions of the inventory data are supplemented by additional details of these data in each spreadsheet.

Inventories coverrepresent the 2014 annual time period. PollutantsInventoried included in the inventoriespollutants are NOx, VOC, CO, SO2, and PM10. Greenhouse gas (GHG) pollutants.pollutants, i.e. CO2, CH4 and N2O, are included for some basins (seeincluded in the Greater San Juan and Permian Basin 2014 Inventory Study. See the "readme" tab on the spreadsheets for more information about emissions source data and assumptions used to generate the respective basins). basin level inventories.

Table 1. WAQS 2014 Oil and Gas Emission Inventory Spreadsheets

Basin	2014	Future Year	Description
Big Horn	xls		Nonpoint source emissions were directly provided by Wyoming Department of Environmental Quality (WYDEQ) for all Wyoming counties and emissions for Carbon County, Montana were obtained from 2014 National Emission Inventory (NEI) Final v1. Similarly, the point source emissions were obtained from WYDEQ for Wyoming Counties and 2014 NEI Final v1 for Carbon County, Montana.
Central_Montana_Uplift	xls		Nonpoint source emissions were obtained from 2014 National Emission Inventory (NEI) Final v1 for Montana counties within the basin. Similarly, the point source emissions were also obtained from 2014 NEI Final v1.
Denver-Julesberg	xls		Colorado nonpoint source emissions were obtained from the Colorado Department of Public Health and Environment (CDPHE) submittals to the 2014 National Emission Inventory (NEI) Final v1. Point source emissions were form CDPHE point source data files.
Green River	xls		Nonpoint source emissions were directly provided by Wyoming Department of Environmental Quality (WYDEQ) for all Wyoming counties and obtained from 2014 National Emission Inventory (NEI) Final v1 submitted by Colorado Department of Public Health and Environment (CDPHE) for Colorado counties. Similarly, the point source emissions were obtained from WYDEQ for Wyoming Counties and data provided by CDPHE for Colorado counties. For this study, Green River Basin captures emissions from all counties with the Central Western Overthrust Basin and Green River Basin.
Paradox	xls		Nonpoint source county-wide emissions were obtained from 2014 National Emission Inventory (NEI) Final v1 for Colorado and Utah. For the nonpoint source emissions, tribal and non-tribal emissions were distributed using the appropriate activity. The distribution factor for each county for tribal and non-tribal land is based on the fraction of 2014 activities that occurred on tribal and non-tribal land respectively in each county. Activity data were obtained from the IHS database for the calendar year 2014. Each source category was assigned the activity category surrogate to which it was most closely associated. For example, drill rig activity would be most closely associated with and therefore assigned to new spuds. The point source emissions were obtained from 2014 NEI Final v1 for counties within Utah and point source emissions for counties within Colorado were obtained from the Colorado Department of Public Health and Environment (CDPHE).
Permian	xls		Estimates emissions from the Permian Basin for counties within the state of New Mexico. Oil and gas activity data were obtained from the IHS database for calendar year 2014. Major and Minor point source emissions were obtained from New Mexico Environmental Department (NMED). Point source emissions mineral designation were provided by Bureau of Land Management (BLM) for each point source. Includes GHG emissions estimates except for point sources where SCC information was not provided, in which case emissions from all greenhouse gas (GHG) pollutants i.e. CO2, CH4 and N2O were not estimated.
Piceance	xls		Colorado nonpoint source emissions were obtained from the Colorado Department of Public Health and Environment (CDPHE) submittals to the 2014 National Emission Inventory (NEI) Final v1. Point source emissions were form CDPHE point source data files.
Powder River	xls		Nonpoint source county and SCC-level emissions were obtained from Wyoming Department of Environmental Quality (WYDEQ) for all Wyoming counties and obtained from 2014 National Emission Inventory (NEI) Final v1 for all counties in Montana and South Dakota. The point source emissions were obtained from WYDEQ, 2014 NEI Final v1 and from Environmental Protection Agency (EPA) Region 8. Point source emissions were assigned tribal or and non-tribal designation based on whether a facility's emissions were reported to a state agency (non-tribal) or federal/tribal agency (tribal).
Raton	xls		Colorado and New Mexico nonpoint source emissions were obtained from the 2014 National Emission Inventory (NEI) Final v1. For Colorado State, emissions submitted by the Colorado Department of Public Health and Environment (CDPHE) were used. Point source emissions for 2014 in Colorado were obtained from CDPHE point source data files. There are no point source in the New Mexico counties per New Mexico Environmental Department (NMED) database.
San Juan	xls		. Using oil and gas activity data from the IHS database for calendar year 2014 and input factors from "San Juan and Permian Basin Inputs Factors Report", nonpoint source county and SCC-level bottom-up emissions were estimated. Oil and gas activity data were obtained from the IHS database for calendar year 2014. The point source emissions were obtained from New Mexico Environmental Department (NMED), CDPHE and from Environmental Protection Agency (EPA) Region 8, Region 6 and Region 9. The midstream permitted emissions data for SUIT tribal lands in EPA Region 8 were taken from the 2014 NEI v1.
Sweetgrass Arch	xls		Nonpoint source county and SCC-level emissions were obtained from the 2014 (v1) National Emission Inventory (NEI). Oil and gas activity data were obtained from the IHS database for calendar year 2014. As per Environmental Protection Agency (EPA) Region 8 database, there are no point sources on tribal land.
Uinta	xls
Williston	xls
Wind River	xls

2014 IWDW-WAQS Emissions Inventories

• Final 2014 Memorandum pdf
• Final 2014 Base Year Inventory Spreadsheet Files zip

Utah DAQ Updates

Updates for produced water emission numbers that were included in the 2014 IWDW-WAQS final memo and spreadsheet (above)

• UT DAQ Nov22_2017 EI data table pdf
• UT DAQ Nov22_2017 updated 2014 Spreadsheet Files
• 2014_ProducedWater&DisposalFacilitiesEmissions xls
• 2014_AirAgencies_O&GEI_FinalTotals_FINAL_UpdatedPondsMethod_ResTribeIcOnly xls

Greater San Juan and Permian Basin 2014 Inventory Study

• Final 2014 Base Year Report pdf
• Final 2014 Base Year Inventory Spreadsheet Files (see Permian and San Juan Basins in Table 1, above).