Point Source Emissions Inventory

The Point Source Emissions Inventory is an annual survey of chemical plants, refineries, electric utility plants and other industrial sites that meet the reporting criteria in the TCEQ emissions inventory rule (30 TAC §101.10 ).

This Web page provides point source emissions inventory data along with tools and information of use to companies completing their annual Emissions Inventory questionnaires.

Completing and Submitting a Point Source Emissions Inventory

Many of the documents linked from this page are in Portable Document Format (PDF) or in Excel (xls) format, among others. (Help with PDF.)

 Web-based EI Reporting Instructions now available on the TCEQ YouTube Channel

• 2019 Emissions Inventory Guidelines (Revised 12/20/19)
  
• Emissions Inventory Checklist (PDF)
• EAS Contact Information and Other Resources (PDF)


• EI Reporting Requirements Map and Summary Table for Reporting Year (RY) 2019 (PDF) (Updated 12/20/2019)
• Sample RY 2019 Emissions Inventory Notification Letter and Attachments (PDF)
• RY 2019 Electronic Reporting Extract Files (Updated 12/20/2019)
• Status of the 2019 Emissions Inventory (Excel 156k)
•  The 2020 Emissions Inventory Workshop will be held on January 30, 2020 in Austin, Texas.
  
• 2020 Emissions Inventory Workshop Presentations (PDF)

• Web-based EI Reporting Instructions (PDF) (Updated 12/29/2016)
• Electronic Emissions Inventory File Specifications (PDF)
• Electronic Emissions Inventory File Specifications Appendices (PDF)
• Electronic Emissions Inventory File Specifications Reference Tables (zip) (Updated 01/10/2020)
• Electronic Reporting Error Messages (Excel)

• Frequently Asked Questions (PDF)
• Printing an Emissions Inventory Questionnaire (PDF)
• Emissions Inventory Requirements (§101.10)
• Summary of §101.10 July 2016 Updates (PDF)

2014/2015 Houston-Galveston-Brazoria Point Source Emissions Inventory Revisions Due August 1, 2016

• HGB Notice of EI Revision Deadline (PDF)
• How to Submit EI Revisions (HGB May 10, 2016) (PDF)

2012 Dallas-Fort Worth Point Source Emissions Inventory Revisions Due May 1, 2014

• DFW Notice of EI Revision Deadline (PDF)
• How to Submit EI Revisions (DFW April 1, 2014) (PDF)

Important Documents and Information Related to the Point Source Emissions Inventory

Sample Calculation Templates for Common Sources

• Glycol Dehydration Calculations Template (PDF)
• Internal Combustion Engine Calculations Template (PDF)
• Marine Vessel Loading Calculations Template (PDF)
• Railcar & Truck Loading Calculations Template (PDF)
• Storage Tanks Calculations Template (PDF)

Other Documents

• Barnett Shale Area Special Inventory (PDF)
• HRVOC Flare Data Request (PDF)
• Sign up for the Point Source Emissions Inventory List Server
• Point Source Air Emissions and Air Inspection Fees
• Inspection Fees (§101.24) Emissions Fees (§101.27)
• TCEQ/University of Texas at Austin Supplemental Flare Operations Training"

Point Source Emissions Inventory Trends

The table below provides point source emissions data for the last five completed calendar years, including information on routine industrial emissions in tons per year (tpy) for the sources that met the reporting requirements of Rule 101.10 and submitted an emissions inventory for that year. It lists the following pollutants: volatile organic compounds (VOC), nitrogen oxides (NO_x), sulfur dioxide (SO₂), carbon monoxide (CO), and particulate matter less than ten microns in diameter (PM₁₀). Note that Inventory Trends are rounded to the nearest thousand.

Pollutant (tpy)	2014	2015	2016	2017	2018
VOC	99,000	98,000	89,000	89,000	89,000
NOX	285,000	259,000	251,000	250,000	248,000
SO2	422,000	335,000	319,000	353,000	282,000
CO	296,000	251,000	270,000	288,000	246,000
PM10	48,000	46,000	44,000	46,000	41,000
PM2.5	34,000	33,000	32,000	33,000	30,000
Total (does not include PM2.5 to avoid double counting particulate matter)	1,150,000	989,000	973,000	1,026,000	906,000

Point Source Emissions Inventory Listserv

To receive point source emissions inventory updates and announcements, please subscribe to the Point Source Emissions Inventory listserv. This listserv has been specifically created to distribute information for completing a point source emissions inventory. To subscribe, you will need to create a profile with the TCEQ’s distribution service, GovDelivery.com, so that you can add and manage your subscriptions. The Point Source Emissions Inventory list server is located under Air Quality topic.

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Detailed Data from the Point Source Emissions Inventory

Point source emissions inventory data is stored in our State of Texas Air Reporting System (STARS). Only those sites whose emission rates exceed the reporting applicability levels found in( 30 Texas Administrative Code 101.10 ) are tracked. Currently, there are approximately 2,000 industrial sites updating emissions annually.

Site level summary emissions data is available in MS Excel format for inventory years 2014 through 2018: Download the file 2014-2018statesum.xlsx (1093K). The emissions are represented in tons per year during routine operations.

To obtain site specific emissions inventory reports such as: 1) Path List 2) Contaminant Summary Report 3) Emissions Inventory Questionnaire 4) Actual History Report and 5) Air Emission Inventory, follow the instructions listed under the Emissions Inventory Reports.

Customize data extracts are available and may require a fee. To request customize data extracts, complete the Emissions Data Request Form (PDF) and email to: psinvent@tceq.texas.gov, to the attention of the relevant staffer.

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Tools for Completing the Point Source Emissions Inventory Questionnaires

The following information is for the benefit of those companies submitting an annual emissions inventory report under 30 TAC §101.10 .

Help with completing the inventory may also be obtained by calling 512/239-1773 during regular business hours.

Point Source Emissions Inventory Tools

Form/File	Description	Sample Form/Instructions
General Account Information Form	This form, for new accounts only, allows a company to provide such general information as company name, TCEQ air account number, and site location and operating schedule information. TCEQ-10447 (10/01/2008)	Account Information Sample Form and Instructions
Contact Information Form< /td>	This form allows a company to provide or change information about the company contact person(s) for the account. TCEQ-20034 (11/10/2011)	Contact Information Sample Form and Instructions
Path Deactivation Form	Use the Path Deactivation Request form to unlink an active FIN from the EPN. TCEQ-20737 (10/23/2015)	Path Deactivation Sample Form and Instructions
Structural Overview Form	This form, which is used to list all paths in an account, should be filled out for all new accounts and for existing accounts adding or changing structure. TCEQ-20035 (10/01/2008)	Structural Overview Sample Form and Instructions
Facility Forms: Combustion Flares Storage Tanks Cooling Towers Waste Water Systems Leaking Components VOC Processs Loading Operations Cleaning Coating or Printing Wastewater Components Other	One of these forms must be completed for each Facility Identificaiton Number (FIN) added to an account. TCEQ-20036a,b,e,f,g,k,l (10/01/2008) TCEQ-20036c,d,i,j(11/10/2011) TCEQ-20036h(11/16/2012)	All Facility Sample Forms and Instructions
Name Revision Request	This form should be used to summarize changes in FINs, Control device Identification Numbers (CINs) and/or Emission Point Numbers (EPNs.) TCEQ-20041f (10/01/2008)	FIN, CIN, EPN Revision Request Forms and Instructions
Abatement Device Information	This form may be used to add an abatement device to an account. TCEQ-20037 (11/10/2011)	Abatement Device Sample Form and Instructions
Emission Point Forms: Stacks Flares Fugitives	One of these forms should be completed for each EPN added to an account. TCEQ-20038 b, c (11/10/2011) TCEQ-20038a (10/02/2012)	All Emission Point Sample Forms and Instructions
Emissions Factors for Equipment Leak Fugitive Components	Addendum to RG 360-A (January 2008)
New Path Emissions	This form should be used to create each new path (formerly "link") in an account and to report the emissions associated with that path. TCEQ-20039 (11/10/2011)	New Path Emissions Sample Form and Instructions
Account Emissions	This form, for new accounts only, allows a company to report total account emissions for the year. TCEQ-20040 (11/16/2012)	Total Account Emissions Sample Form and Instructions
Material Throughput Forms: Combustion Units Storage and Loading Printing, Painting and Degreasing Units Wastewater Oil Field Storage Tanks Feed and Product Operations	These forms may be used to report material usage for combustion units; storage and loading facilities; wastewater facilities; printing, painting, and degreasing facilities; and feed and production operations. TCEQ-20041 a, b, c, d, e, g (10/01/2008)	All Material Throughput Forms and Instructions
Fugitive Data	This form provides component count and other data for fugitive area FINS. TCEQ-20417 (12/14/2008)	Fugitive Data Sample Form and Instructions
Sample Letter (Insignificant Change) to TCEQ	A sample letter that a company might submit to the Emissions Assessment Section (EAS) if account-wide emissions of all of the following contaminants changed by less than five percent or five tons: VOC, NOX, CO, SO2, Pb, PM10, and PM2.5.
Sample Letter (Rule Inapplicable or Mail List Removal)	A sample letter that a company might submit to the EAS if its account does not meet the applicability requirements of 30 TAC 101.10 and the company wishes to remain on the EAS annual mailing list, or does not meet the applicability requirements of 30 TAC 101.10 and the company would like to be removed from the EAS annual mailing list.
Contaminants (xlsx)

A list of contaminant (pollutant) names and codes used in the emissions inventory.