An emission release point is the physical point at which pollutants are released into the environment, via a stack or fugitive release. Information about the physical release points of pollutants is an important input to air pollution modeling. You may report for a given facility site one or many emission release points. Although the physical relationship between units, processes, and release points may be defined in other systems, the EIS only requires you to report the percentage of a process's emissions released to a physical point, and the EIS stores only the relationship between the process (and its emissions) and the release point.
Adding new emission release points. To add a new release point, submit the information in the ReleasePoint component with a ReleasePointIdentification component and a ReleasePointGeographicCoordinates component. The EIS will assign an EIS ReleasePointIdentifier for the release point and will include this identifier in your feedback report. All release points must have a ReleasePointTypeCode. There are five Stack Release Point Types: Downward-facing Vent, Horizontal, Gooseneck, Low Flow Vent, Vertical, and Vertical with Raincap. There are two types of Fugitive Release Points, Fugitive 2-Dimensional (2-D) and Fugitive 3-Dimensional (3-D). Two sets of geographic coordinates are required for a 2-D Fugitive Release point. Latitude and longitude for both midpoints of two opposing sides of the source must be entered for all 2-D Release Points. You will also be allowed to continue to report fugitive data as it has in the past (using release point type code = “1”).
For fugitive emission release points, the minimum requested information includes:
Updating emission release points in the EIS. To update information for a given release point, you must submit either the EIS or Agency identifier and associated program system code, along with all of the data elements in the release point component that you wish to change.
Reporting geographic coordinates of the release point. Geographic coordinates are optional for each individual release point. If you don't have geographic coordinates for each release point at a facility site, you can apply the facility site-level coordinates where individual release point coordinates are not available. Use the GeographicCoordinates component to report the latitude and longitude of the release point, particularly if the release point is a stack at a large facility site. You can acquire geographic coordinates for your facility site or emission release points through a variety of tools, including Google Earth. Upon downloading the utility, you can enter any address to locate a site. By clicking on any point in the site you can obtain the geographic coordinate data.
Impact of incomplete information or critical errors. If there are critical errors relating to the release point type code, all data in the component will be rejected.
Code that identifies the type of release point.
User Role AccessibilitySLT, Inventory Developer
| Number | Name | Description | Type | Severity | 101 | Release Point Type Code Present for Release Points | The release point type code is required when reporting the release point component. The component and all dependent data will not be stored if there are missing required data. | Present | Critical |
|---|---|---|---|---|
| 100 | Release Point Type Code Valid | Must match value in code list. | Code | Critical |
| 171 | Stack Release Point Dimensions Present | If release point type code is a stack type, then either Diameter or Length and Width (for non-circular stacks) are required. The component and all dependent data will not be stored if there are missing required data. | Present | Critical |
| 1100 | Release Point Type Cannot be Changed from Stack to Fugitive | User role not permitted to modify Release Point Type from Stack to Fugitive. | Conditional | Critical |
| 1101 | Release Point Type Cannot be Changed While Dimension Fields are Protected | A release point type cannot be changed while associated dimension (length, width, height, diameter) fields are protected. | Conditional | Protected |
| 1102 | Release Point Type Cannot be Changed While Geographic Coordinates are Protected | A release point type cannot be changed while geographic coordinates are protected. | Conditional | Protected |
Text description of release point.
User Role AccessibilitySLT, Inventory Developer
| Number | Name | Description | Type | Severity |
|---|---|---|---|---|
| 254 | Release Point Description Data Type | Maximum allowable width of 100 characters. Longer submissions will be truncated. | Format | Warning |
The height of the stack from the ground.
User Role AccessibilitySLT, Inventory Developer
| Number | Name | Description | Type | Severity |
|---|---|---|---|---|
| 170 | Release Point Stack Height Measure Present | If the release point type code is a stack type, then the release point stack height measure is required. The component and all dependent data will not be stored if there are missing required data. | Present | Critical |
| 255 | Release Point Stack Height Measure Data Type | This element must be reported as a decimal. | Format | Critical |
| 321 | Release Point Stack Height Measure Range | Must be between 1 to 1300, inclusive. | Range | Critical |
| 1311 | Stack Height Protected | If the data in the EIS for stack height are protected, the data will not be stored. A request to unprotect the data can be made through the Gateway. | Conditional | Protected Warning |
The stack height unit of measure.
User Role AccessibilitySLT, Inventory Developer
| Number | Name | Description | Type | Severity |
|---|---|---|---|---|
| 1489 | Release Point Stack Height Unit Of Measure Code Valid | Must be in feet. | Code | Critical |
The internal diameter of the stack (measured in feet) at the release height.
User Role AccessibilitySLT, Inventory Developer
| Number | Name | Description | Type | Severity |
|---|---|---|---|---|
| 171 | Stack Release Point Dimensions Present | If release point type code is a stack type, then either Diameter or Length and Width (for non-circular stacks) are required. The component and all dependent data will not be stored if there are missing required data. | Present | Critical |
| 193 | Release Point Stack Diameter Measure Not Greater than Height Measure | The release point stack diameter measure must be smaller than the release point stack height measure. | Calculation | Warning |
| 256 | Release Point Stack Diameter Measure Data Type | This element must be reported as a decimal. | Format | Critical |
| 510 | Release Point Stack Diameter Measure Range | Must be between 0.1 to 100, inclusive. | Range | Critical |
| 1312 | Stack Diameter Protected | If the data in the EIS for stack diameter are protected, the data will not be stored. A request to unprotect the data can be made through the Gateway. | Conditional | Protected Warning |
The stack diameter unit of measure.
User Role AccessibilitySLT, Inventory Developer
| Number | Name | Description | Type | Severity |
|---|---|---|---|---|
| 1490 | Release Point Stack Diameter Unit Of Measure Code Valid | Must be in feet. | Code | Critical |
The width of the release in the East-West direction as if the angle is zero degrees.
User Role AccessibilitySLT, Inventory Developer
| Number | Name | Description | Type | Severity |
|---|---|---|---|---|
| 263 | Release Point Width Measure Data Type | This element must be reported as an integer. | Format | Critical |
| 196 | Release Point Width Measure Range | Should be between 1 to 10,000 for Fugitive type or 0.1 to 100 for Stack type; inclusive. | Range | Critical |
| 2396 | Fugitive Width Present | The fugitive width measure is required when reporting the release point component. The component and all dependent data will not be stored if there are missing required data. | Present | Critical |
| 171 | Stack Release Point Dimensions Present | If release point type code is a stack type, then either Diameter or Length and Width (for non-circular stacks) are required. The component and all dependent data will not be stored if there are missing required data. | Present | Critical |
| 263 | Release Point Width Measure Data Type | This element must be reported as an integer. | ||
| 1316 | Release Point Width Protected | If the data in the EIS for Release Point Width are protected, the data will not be stored. A request to unprotect the data can be made through the Gateway. | Conditional | Protected Warning |
The width unit of measure code.
User Role AccessibilitySLT, Inventory Developer
| Number | Name | Description | Type | Severity |
|---|---|---|---|---|
| 1496 | Release Point Width Unit Of Measure Code Valid | Must be in feet. | Code | Critical |
The length (measured in feet) of the release in the North-South direction as if the angle is zero degrees.
User Role AccessibilitySLT, Inventory Developer
| Number | Name | Description | Type | Severity |
|---|---|---|---|---|
| 195 | Release Point Length Measure Range | Should be between 1 to 10,000 for Fugitive type or 0.1 to 100 for Stack type; inclusive. | Range | Critical |
| 171 | Stack Release Point Dimensions Present | If release point type code is a stack type, then either Diameter or Length and Width (for non-circular stacks) are required. The component and all dependent data will not be stored if there are missing required data. | Present | Critical |
| 264 | Release Point Length Measure Data Type | This element must be reported as an integer. | Format | Critical |
| 1317 | Release Point Length Protected | If the data in the EIS for Release Point Length are protected, the data will not be stored. A request to unprotect the data can be made through the Gateway. | Conditional | Protected Warning |
The length unit of measure code.
User Role AccessibilitySLT, Inventory Developer
| Number | Name | Description | Type | Severity |
|---|---|---|---|---|
| 1497 | Release Point Length Unit Of Measure Code Valid | Must be in feet. | Code | Critical |
The velocity of an exit gas stream.
User Role AccessibilitySLT, Inventory Developer
| Number | Name | Description | Type | Severity |
|---|---|---|---|---|
| 257 | Release Point Exit Gas Velocity Measure Data Type | This element must be reported as a decimal. | Format | Critical |
| 512 | Release Point Exit Gas Velocity Measure Range for FPS for Stacks | For stacks, release point exit gas velocity measure must be 0.001 to 1500, inclusive, if in FPS | Range | Critical |
| 174 | Release Point Exit Gas Flow Rate Measure or Exit Gas Velocity Required for Stack Release Points | If the release point type code is a stack type then either exit gas velocity or exit gas flow rate is required. | Conditional | Critical |
| 192 | Consistency of Release Point Exit Gas Flow Rate and Velocity | If Exit Gas Velocity and Flow Rate are reported, the following formula is used to calculate the release point exit gas flow rate measure. If this value and the reported exit gas flow rate are within 5% of each other, then the reported data is considered valid. Flow Rate = (Stack Area) * Velocity. | Calculation | Critical |
| 517 | Release Point Exit Gas Velocity Measure Range for FPM for Stacks | If the release point exit gas velocity unit of measure is FPM and the release point type is not fugitive, release point exit gas velocity measure must be 0.060 to 90,000; inclusive. | Range | Critical |
| 1369 | Release Point Exit Gas Velocity Measure Range for FPS for Fugitive | If the release point exit gas velocity unit of measure is FPS and the release point type is fugitive, release point exit gas velocity measure must be 0 to 400, inclusive. | Range | Critical |
| 1370 | Release Point Exit Gas Velocity Measure Range for FPM for Fugitive | If the release point exit gas velocity unit of measure is FPM and the release point type is fugitive, release point exit gas velocity measure must be 0 to 24,000; inclusive. | Range | Critical |
The unit of measure for the velocity of an exit gas stream value.
User Role AccessibilitySLT, Inventory Developer [Inventory Developer Only]*
| Number | Name | Description | Type | Severity |
|---|---|---|---|---|
| 103 | Release Point Exit Gas Velocity Unit of Measure Present | Exit gas velocity and exit gas velocity unit of measure must both be reported for either to be accepted. | Present | Critical |
| 329 | Release Point Exit Gas Velocity Unit of Measure Code Valid | Must match value in code list. | Code | Critical |
| 1314* | Stack Gas Velocity and UoM Protected | If the data in the EIS for stack gas velocity and UoM are protected, the data will not be stored. A request to unprotect the data can be made through the Gateway. | Conditional | Protected Warning |
The value of the stack gas flow rate.
User Role AccessibilitySLT, Inventory Developer [Inventory Developer Only]*
| Number | Name | Description | Type | Severity |
|---|---|---|---|---|
| 174 | Release Point Exit Gas Flow Rate Measure or Exit Gas Velocity Required for Stack Release Points | If the release point type code is a stack type then either exit gas velocity or exit gas flow rate is required. | Conditional | Critical |
| 258 | Release Point Exit Gas Flow Rate Measure Data Type | This element must be reported as a decimal. | Format | Critical |
| 518 | Release Point Exit Gas Flow Rate Measure Range for ACFM for Stacks | If the release point exit flow gas unit of measure is ACFM and the release point type is not fugitive, release point exit gas flow rate measure must be between 0.1 to 12,000,000; inclusive. | Range | Critical |
| 519 | Release Point Exit Gas Flow Rate Measure Range for ACFS for Stacks | If the release point exit flow gas unit of measure is ACFS and the release point type is not fugitive, release point exit gas flow rate measure must be between 0.1 to 200,000; inclusive. | Range | Critical |
| 1371 | Release Point Exit Gas Velocity Measure Range for FPM for Fugitive | If the release point exit flow gas unit of measure is ACFM and the release point type is fugitive, release point exit gas flow rate measure must be between 0 to 12,000,000; inclusive. | Range | Critical |
| 1372 | Release Point Exit Gas Flow Rate Measure Range for ACFS for Fugitive | If the release point exit flow gas unit of measure is ACFS and the release point type is fugitive, release point exit gas flow rate measure must be between 0 to 200,000; inclusive. | Range | Critical |
| 1315* | Stack Gas Flow Rate and UoM Protected | If the data in the EIS for stack gas flow rate and UoM are protected, the data will not be stored. A request to unprotect the data can be made through the Gateway. | Conditional | Protected Warning |
The unit of measure for the stack gas flow rate value.
User Role AccessibilitySLT, Inventory Developer [Inventory Developer Only]*
| Number | Name | Description | Type | Severity |
|---|---|---|---|---|
| 102 | Release Point Exit Gas Flow Rate Unit of Measure Present | Exit gas flow rate and exit gas flow rate unit of measure must both be reported for either to be accepted. | Present | Critical |
| 330 | Release Point Exit Gas Flow Rate Unit of Measure Code Valid | Must match value in code list. | Code | Critical |
| 1315* | Stack Gas Flow Rate and UoM Protected | If the data in the EIS for stack gas flow rate and UoM are protected, the data will not be stored. A request to unprotect the data can be made through the Gateway. | Conditional | Protected Warning |
The temperature of an exit gas stream (measured in degrees Fahrenheit).
User Role AccessibilitySLT, Inventory Developer
| Number | Name | Description | Type | Severity |
|---|---|---|---|---|
| 172 | Release Point Exit Temperature Measure Present | If the release point type code is a stack type, then the release point exit gas temperature measure is required. The component and all dependent data will not be stored if there are missing required data. | Present | Critical |
| 259 | Release Point Exit Gas Temperature Measure Data Type | This element must be reported as an integer. | Format | Critical |
| 511 | Release Point Exit Gas Temperature Measure Outer Range | Must be between -30 to 4000 F, inclusive | Range | Critical |
The measure of the horizontal distance to the nearest fence line of a property within which the release point is located.
User Role AccessibilitySLT, Inventory Developer
| Number | Name | Description | Type | Severity |
|---|---|---|---|---|
| 261 | Release Point Fence Line Distance Measure Data Type | This element must be reported as an integer. | Format | Critical |
| 1112 | Release Point Fence Line Distance Measure Critical Range | Must be between 0 and 99,999; inclusive. | Range | Critical |
The fence line distance unit of measure.
User Role AccessibilitySLT, Inventory Developer
| Number | Name | Description | Type | Severity |
|---|---|---|---|---|
| 1493 | Release Point Fence Line Distance Unit Of Measure Code Valid | Must be in feet. | Code | Critical |
The fugitive release height above terrain of fugitive emissions.
User Role AccessibilitySLT, Inventory Developer
| Number | Name | Description | Type | Severity |
|---|---|---|---|---|
| 194 | Release Point Fugitive Height Measure Range | Should be between 0 to 500, inclusive. | Range | Critical |
| 2395 | Fugitive Height Present | The fugitive height measure is required when reporting the release point component. The component and all dependent data will not be stored if there are missing required data. | Present | Critical |
| 262 | Release Point Fugitive Height Measure Data Type | This element must be reported as an integer. | Format | Critical |
The fugitive release height unit of measure.
User Role AccessibilitySLT, Inventory Developer
| Number | Name | Description | Type | Severity |
|---|---|---|---|---|
| 1495 | Release Point Fugitive Height Unit Of Measure Code Valid | Must be in feet. | Code | Critical |
The orientation angle for the area in degrees from North, measured positive in the clockwise direction from the western-most point.
User Role AccessibilityInventory Developer
| Number | Name | Description | Type | Severity |
|---|---|---|---|---|
| 197 | Release Point Fugitive Angle Measure Range | Should be between 0 to 89, inclusive. | Range | Critical |
| 265 | Release Point Fugitive Angle Measure Data Type | This element must be reported as an integer. | Format | Critical |
Any comments regarding the release point.
User Role AccessibilitySLT, Inventory Developer
| Number | Name | Description | Type | Severity |
|---|---|---|---|---|
| 266 | Emission Release Point Comment Data Type | Maximum allowable width of 400 characters. Longer submissions will be truncated. | Format | Warning |
Code that identifies the operating status of the release point.
User Role AccessibilitySLT, Inventory Developer
| Number | Name | Description | Type | Severity |
|---|---|---|---|---|
| 1094 | Release Point Operating Status Present | The operating status is required when reporting the emissions release point component. The component and all dependent data will not be stored if there are missing required data. | Present | Critical |
| 1095 | Release Point Operating Status Code Valid | Must match value in code list. | Code | Critical |
The year in which the release point status became applicable.
User Role AccessibilitySLT, Inventory Developer
| Number | Name | Description | Type | Severity |
|---|---|---|---|---|
| 1096 | Release Point Operating Status Code and Year | If the release point status code is not "Operating" (OP), the release point status code year should be reported. | Conditional | Critical |
| 1097 | Release Point Operating Status Code Year Range | The year reported should be between 1900 to 2050. | Range | Critical |
| 1098 | Release Point Operating Status Code Year Data Type | This element must be reported as an integer. | Format | Critical |
Indicator that the release point information cannot be changed.
User Role AccessibilityInventory Developer
| Number | Name | Description | Type | Severity |
|---|---|---|---|---|
| 232 | Release Point Protected | If the data in the EIS for release point is protected, the data will not be stored. A request to unprotect the data can be made through the Gateway. | Conditional | Critical |
Indicator that the stack height information cannot be changed.
User Role AccessibilityInventory Developer
| Number | Name | Description | Type | Severity |
|---|---|---|---|---|
| 1311 | Stack Height Protected | If the data in the EIS for stack height are protected, the data will not be stored. A request to unprotect the data can be made through the Gateway. | Conditional | Protected Warning |
Indicator that the release point width information cannot be changed.
User Role AccessibilityInventory Developer
| Number | Name | Description | Type | Severity |
|---|---|---|---|---|
| 1312 | Stack Diameter Protected | If the data in the EIS for stack diameter are protected, the data will not be stored. A request to unprotect the data can be made through the Gateway. | Conditional | Protected Warning |
Indicator that the release point width information cannot be changed.
User Role AccessibilityInventory Developer
| Number | Name | Description | Type | Severity |
|---|---|---|---|---|
| 1316 | Release Point Width Protected | If the data in the EIS for Release Point Width are protected, the data will not be stored. A request to unprotect the data can be made through the Gateway. | Conditional | Protected Warning |
Indicator that the release point length information cannot be changed.
User Role AccessibilityInventory Developer
| Number | Name | Description | Type | Severity |
|---|---|---|---|---|
| 1317 | Release Point Length Protected | If the data in the EIS for Release Point Length are protected, the data will not be stored. A request to unprotect the data can be made through the Gateway. | Conditional | Protected Warning |
Indicator that the exit gas velocity information cannot be changed.
User Role AccessibilityInventory Developer
| Number | Name | Description | Type | Severity |
|---|---|---|---|---|
| 1314 | Stack Gas Velocity and UoM Protected | If the data in the EIS for stack gas velocity and UoM are protected, the data will not be stored. A request to unprotect the data can be made through the Gateway. | Conditional | Protected Warning |
Indicator that the exit gas flow rate information cannot be changed.
User Role AccessibilityInventory Developer
| Number | Name | Description | Type | Severity |
|---|---|---|---|---|
| 1315 | Stack Gas Flow Rate and UoM Protected | If the data in the EIS for stack gas flow rate and UoM are protected, the data will not be stored. A request to unprotect the data can be made through the Gateway. | Conditional | Protected Warning |
Indicator that the exit gas temperature information cannot be changed.
User Role AccessibilityInventory Developer
| Number | Name | Description | Type | Severity |
|---|---|---|---|---|
| 2388 | Stack Gas Temperature Protected | If the data in the EIS for stack gas temperature is protected, the data will not be stored. A request to unprotect the data can be made through the Gateway. | Conditional | Protected Warning |
Indicator that the fugitive height information cannot be changed.
User Role AccessibilityInventory Developer
| Number | Name | Description | Type | Severity |
|---|---|---|---|---|
| 1318 | Fugitive Height Protected | If the data in the EIS for fugitive height are protected, the data will not be stored. A request to unprotect the data can be made through the Gateway. | Conditional | Protected_ Warning |
Indicator that the fugitive angle information cannot be changed.
User Role AccessibilityInventory Developer
| Number | Name | Description | Type | Severity |
|---|---|---|---|---|
| 1319 | Fugitive Angle Protected | If the data in the EIS for fugitive angle are protected, the data will not be stored. A request to unprotect the data can be made through the Gateway. | Conditional | Protected_ Warning |
Complex data type to define identifiers by which an entity is known or has been known.
User Role Accessibility
| Number | Name | Description | Type | Severity |
|---|---|---|---|---|
Complex data type which identifies the geographic location of the facility site, emission release point, or event.
User Role Accessibility
| Number | Name | Description | Type | Severity |
|---|---|---|---|---|
SLT, Inventory Developer [Inventory Developer Only]*
| Number | Name | Description | Type | Severity |
|---|---|---|---|---|
| 2352* | Release Point Protected | If the data in the EIS for release point is protected, the data will not be stored. A request to unprotect the data can be made through the Gateway. | Conditional | Protected Warning |
| 191 | Release Point Velocity calculated from Flow and stack area is out of range (0.001 to 1500 FPS) | If Exit Gas Flow Rate and area parameters are submitted, the following formula is used to calculate the release point exit gas velocity measure. Exit Gas Velocity = Flow Rate / Area. If the exit gas velocity is within 0.001-1500 FPS, then the data is considered valid. | Calculation | Critical |