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### Instructions for Submitting **Data Corrections Introduction**  EPA seeks comment s on hazardous air pollutant (HAP) emissions and other model input data that we us ed to assess risks from selected industrial major source categories, as required b y sectio n 112(f) of the Clean Air Act . The source of this information is the most recent version of the 2005 National Emissions Inventory (2005 NE I ), updated with data collected by EPA’s Office of Air Quality Planning and Standards . For more information about the 2005 National Emissions Inventory (NE I ) , please go to : http://www.epa.gov/ttn/chief/net/2005inventory .html . 1 The Microsoft Access file will enable you to review and suggest revisions to HAP emissions and other descriptive information associated with all facilities in a single Maximum Achievable Control Technology

( MACT ) category . Instructions for using this file to review the data, revise the data , and submit revisions to EPA are outline d below . Section 6 lists specific steps for submitting your final changes to the EPA . Section 7 of this document defines important term s (e.g., MACT, SI C, SCC, etc.) and all data elements found in this file . The complete outline for this document is listed below: 1. Application Overview 2. View Summary

Data a. Options i. MACT HAP Emissions ii. State County MACT Emissions iii. Facility MACT HAP Emissions iv. All Data b. Filter Data 3. Revise Data a. Revise Emission Fields b. Revise Stack Fields

1 Underlined text in this document indicates hyperlinks to text both inside and outside the document.1 0/28 /1 1 2 c. Revise Process Fields d. Revise Facility

Information e. Add Data to an Existing Facility 4. Add a Facility 5. Review Revisions 6. Submit Revisions 7. Term Definitions 1. **Application Overview**  When this Microsoft Acces s file opens you are presented with a “Main Page” containing five buttons : 1. View Summary

Data 2. Revise Data 3. Review Revisions 4. Submit Revisions 5. Exit Database After reading these instructions, you should select the “View Summary Data” button to v iew s ummary d ata before making revisions or adding any facilities to this file . After reviewing the current data for your MACT category , you can proceed to the “ Revise Data ” forms . After making corrections to this file, you should review your corrections and then submit your revisions to EPA as outlined on the “Submit Revisions” form . 2. **View Summary Data** After selecting and clicking the “View Summary Data” button , the form display s national level summary data for all pollutants associated with the MACT category of interest . You can sort the columns in ascending or descending order if you wish to see the highest or lowest emissions and/or if you want to sort by pollutant name alphabetically . This form also provides buttons that allow you to change the aggregation level (“ Options ”) of the data and/or filter by pollutant (“Filter Data ”) .1 0/28 /1 1 3

a. **Options**

– These buttons allow you to view summary data at varying levels of detail . When you click th ese button s, new form s open with data level and filter buttons appropriate to the dataset displayed . These buttons and their accompanyi ng forms are as follows : i. **MACT HAP Emissions (** **View National Data Fo**  **rm )**  **–** Discussed above, this form displays national level summary data for all pollutants associated with the MACT category of interest . This is the default form that opens when yo u select “View Summary Data” on the “Main Page .” ii. **State County**  **MACT Emissions (** **View State, County, MACT, HAP, and Emissions Data**  **Fo rm** **)**

– All emissions for the MACT category are shown at the county

– pollutant level . This form would allow you , for example, to find your county and view total emissions by pollutant from the MACT category . After viewing emissions at the county level, you might want to view all facilities in the county to determine where high (or low) emissions values for a given pollutant are originating . To do this, proceed to the Facility MACT HAP Emissions data level. iii. **Facility MACT**  **HAP Emissions**  **( View Facility, MACT, HAP, and**  **Emissions Data Form**  **)**

– Total emissions by pollutant are shown for all processes at all facilities assigned to this MACT category . The column labeled “MACT Code” indicates the HAP pollutant emissions are associated with the MACT category . After viewing emissions at the facility level, you might want to view all data associate d with that facility to make sure that latitude/longitudes, stack parameters, S ource C lassification Codes (SCC), S tandard Industrial C lassification (SIC) codes ,1 0/28 /1 1 4 North American Industry C lassification S ys tem (NAI CS ) c odes, and other descriptive information are correct . To view this information, select the “All Data” button. iv. **All Data (View All Data Form)** 

– Detailed records are shown for all facilities included in this MACT category . This detail includes process level HAP emissions, SCCs , stack parameters, latitude/longitudes and address information.

b. **Filter Data** 

– These buttons allow you to filter the current dataset b y different attributes . The available filters ch ange depending upon the detail level of the displayed data (e.g . , the county level filter is not available on the national level summary form , but is available at the State County MACT level ) . You can choose one filter after another to progressivel y narrow down the data to records o f intere s t . For example, on the State County MACT Emissions level, you can filter by state and th en by pollutant . The filter s available on each data level are:

 National Data

– P ollutant filter .  State County MACT Emissions

– P ollutant, state, and county filters .  Facility MACT HAP Emissions

– Facility , p ollutant, state, county , and M ACT c ode filter s .  All Data

– Facility , p ollutant , state, county , and MACT c ode filters. Filters can be removed by clicking the “Remove Filter” Button . Clicking “Remove Filter” removes all filters applied and returns the dataset to its original form. After viewing emissions at the facility level, procee d to “Revise Data” on the “ Main Page ” if there any omissions or errors that need correction .1 0/28 /1 1 5

3. **Revise Data** When you select “Revise Data” the “ Reviewer In formation” form first opens . You must complete this form before continuing . This form collects contact information on the reviewer:

 Name  Organization  Phone Number  Email Address Please note: If you suggest changes to or add emissions values you will need to provide additional documentation for these emission revisions to the docket . (See Section 6 for more information.) The “ Reviewer In formation” form will appear every time you return to the revised data forms , however, your contact information will be saved in the drop down list and you can readily select yo ur email address from the list . The “ Facility Selection ” form opens and allows the user to select a facility

for revision . The name of the facility and address information are shown in the selection list as multiple facilities may have similar names . At this point, you can select one of f ive actions : “Revise Data for Selected Facility ,” “Add a Facility ,” “Add Data to an Existing Facility ,” “Export Facility Data to an Excel File,” or “ Back to Main . ” The “Add a Facility” button is discussed in Section 4; the rest are described below . Revise Data for Selected Facility – Selecting this button opens a form which allow s you to select the specific data attributes to be revised . These attributes are:

a. **Revise Em**  **issions Fields**

– Selecting this option brings up data fields relevant to the emissions value . Fields that can be revised here are: start date, end date, routine e missions ( tons per year), pollutant code, and HAP performance l evel . If an emissions value is changed, the start date, end date, HAP performance level, control measure information, and emissions calculation method code must be updated as well . Because EPA is modeling both short - and long - term risks, you are also asked to indicate the routine e missions m ax imum h ourly1 0/28 /1 1 6 rate ( in lbs per hour), as well as startup, shutdown, and malfunction (SSM) annual and maximum hourly emissions (and use the comment field to indicate number of SSM occurrences) . For EPA to better understand current control measures that are in operation, we are requesting that reviewers indicate the ty pe of control measure associated with each unit . You can indicate if the process is controlled (check box for Yes), select a control measure from the drop down list, and provide additional information in the comment field . If the control measure information is not provided, th e emission process will be considered uncontrolled . You can also indicate that the HAP em issions value should be deleted, and provi de a reason for this deletion . Please note that you can onl y enter data into the revision fields . The remaining fields are locked . When you are finished making your changes, select “Save Records” at the bottom of the form to save your revisions and move to another form . Please note: If you suggest change s to or add emissions values , you will need to provide additional docum entation for these emission revisions. (See Section 6 for more information.) b . **Revise Stack Fields**

– Selecting this option brings up data fields relevant to the emissions release point . Fields that can be revised here are stack height, stack diameter, stack temperature, exit gas velocity , exit gas flow rate, the emission release point type (stack vs. fugitive ), f ugitive length, fugitive width , fugitive angle , latitude and longitude, and North American Datum . You can also enter a general comment on the revision . Please note that you can only enter data into the revision fields . The remaining fields are locked . When you are finished making your changes, select “Save Records. ”

c . **Revise Process Fields**

– Selecting this option brings up data fields relevant to the process . Fields that can be revised here are MACT c ode and SCC . You can also enter a general comment on the revision . You only enter data into the1 0/28 /1 1 7 revision fields . The remaining fields are locked . When you are finished making your changes, select “S ave Records.” d **. Revise Facility Information** 

– Selecting this option brings up data fields that describe the facility . Fields that can be revised here are : tribal code, county name, facility registry identifier, facility category code (major or area), facility name, location address, city , state, and zip code . You can also enter a general comm ent on the revision, indicate that the facility should be removed from the NEI if it ha s permanently closed and when it closed, or indicate the facility should be removed from the MACT category . Please note that you can only enter data into the revision fields . The remaining fields are locked . When you are finished making your changes, select “Save Records.”

e. **No Revisions**

– Select this button to indicate you have revi e wed the facility data and have no revisions. You cannot select this button if you have made revisions to the facility . After you make this selection, you will not be able to make revisions to the facility data. Add Data to an Existing Facility – Selecting the “Add Data to an Existing Facility” button opens a form which shows all the current HAP emissions for the selected facility . You should scroll to the last row to enter an y missing pollutant data . All data fields should be filled in . Inadditio n to providing additional annual emission estimates, you are also asked to indicate the routine emissions maximum hourly rate (in lbs per hour), as well as startup, shutdown, and malfunction (SSM) annual and maximum hourly emissions (and use the comment field to indicate number of SSM occurrences) . You can select “RTR 1 1 ,” Risk and Technology Review 20 1 1 as the data source. When you are finished making your changes, select “Save Records.” Export Facility

Data to an Excel File

– Selecting this option allows you to export the facility data to an Excel file if it facilitates your review of the original NEI facility and1 0/28 /1 1 8

emissions data. After clicking this button, yo u will be asked to which local directory2 you would like to save the file. If you select this option after making revisions, your revised records will be included. Other Options

– You also have the option of selecting a differ ent facility , returning to the Main Page , reviewing yo ur changes , or preparing the file to submit your changes to EPA. 4. **Add a**  **Facility** When you select “Add a Facility” on the “ Revise Data ” form button a new form opens with a single blank record . You can add a facility to this MACT category

and enter the HAP emissions and associated descriptive facility and emission release point information . This information includes: tribal code; county name ; facility

category code (major or area) ; facility name ; location address city, state, and z ip code ; SI C code ; NAI CS code ; SCC ; MACT code; pollutant ; routine , startup, shutdown, and malfunction (SSM) emissions value s and rates (and number of SSM occurrences) ; stack parameters ; and latitude/longitude . The reviewer should also enter one set of appropriate identifiers: f

acility registry i dentifi er, unit ID, process ID , and emission release point ID . Required fields are noted. If you add emissions for a process that is not associated with the MACT category , please select the appropriate MACT code (from the drop down list) or indicate that it is not a MACT - associated process . When you are finished making your changes, select “Save Records.” To create additional emission unit, process, and HAP emissions records, now select “Add Data to an Existing Facility” and continue with your data entry. 5. **Review Revisions** When you open the “Review Revisions” form , yo u can export your suggested revisions to Microsoft Excel so that you can print and review them . This form contains fiv e buttons:

1 . V iew Emission s Revisions ; 2. V iew Facility Revisions ; 3. Export Revisions to Excel File; 4. Submit Revisions; and

2 Please note: this directory should already exist on your PC. The program will not create new subdirectories.1 0/28 /1 1 9 5 . Back to Main After selecting options 1 or 2 , the corresponding form will open which will display the selected revisions . The Emissions Revisions form contains all additions and revisions entered under the Revise Emissions Fields , Revise Process Fields , and Revise Stack Fields forms as described above . The Facility

Revisions form contains all additions and revisions entered under “ Revise Facility Information ” form. You can export these revisions by clicking the “Export Revisions to Excel file ” button . After clicking th is button , yo u will be asked to which local directory 3 you would like to save the file . The selected revisions will then be exported to a Microsoft Excel spreadsheet . You should print out these spreadsheets , review them, and make corrections as necessary . To make corrections , return to the appropriate revision form (as described under Revise Data) . An y previously revised data w ill appear in the revise data forms . 6. **Submit Revisions** Upon completion of all additions and corrections, or acceptance of the data with no revisions, yo u need to submit your corrections to EPA . First, create a new file containing just the changes . To do so, select the “Submit Revisions” button found on the “ Main Page” and on the revision and review summary

data forms . Clicking the “Create Revisions File” button will create a spreadsheet file that contains the reviewer’s changes . The file will be assigned a name using the follow ing convention : XXXX_Revisions_LastName.xls , where XXXX = 4 - 6 digit MACT c ode and LastName = reviewer’s last name . You will be prompted to save the new file to a local directory of your choice . In addition to submitting the spreadsheet file to the docket, if you corrected or added emissions values , you should prepare supporting documentation . This can include source test reports, permit information and/or computational information such as emission factors and activity data (throughput) . The spreadsheet and supporting documentation must be submitted manually to one of the addresses listed in the next paragraph.

3 Please note: this directory should already exist on your PC. The program will not create new subdirectories.1 0/28 /1 1 10

Submit your revision database, identified by Docket ID No. EPA - HQ - OAR - 20 1 0 - 0895 , by one of the following methods:  http://www.regulations.gov : Follow the on - line instructions for submitting comments.  E - mail: a - and - r - docket@epamail.epa.gov . Attention Docket ID No. EPA - HQ O AR - 20 1 0 - 0 895 .  Mail: U.S. Postal Service, send comments to: EPA Docket Center, EPA W est (Air Docket) Attention Docket ID No. EPA - HQ - OAR - 20 1 0 - 0 895 , U.S. Environmental Protection Agency , Mailcode 2822T, 1200 Pennsylvania Avenue, NW, Washington, DC 20460. Please include a total of two copies.  Hand Delivery : U.S. Environmental Protection Agency , EPA West (Air Docket), Room 3334, 1301 Constitution Ave., NW, Washington, DC 20004. Attention Docket ID No. EPA - HQ - OAR - 20 1 0 - 0 895 . Such deliveries are onl y accepted during the Docket ’ s normal hours of operation, and special arrangements should be made for deliveries of boxed information. Instructions : Direct your comments to Docket ID No. EPA - HQ - OAR - 20 1 0 - 0 895 . The EPA’s policy is that all comments received will be included in the public docket without change and may be made available online at http://www.regulations.gov, including any personal information provided, unless the comment includes information claimed to be confidential business information (CBI) or other information whose disclosure is restricted by statute. Do not submit information that you consider to be CBI or otherwise protected through www.regulations.gov or e - mail. The www.regulations.gov website is an “ anony mous access ” sy stem, which means EPA w ill not know your identity or contact information unless you provide it in the body of your comment. If you send an e - mail comment directly to EPA without going through www.regulations.gov, yo ur e - mail address will be automaticall y captured and included a s part of the comment that is placed in the public docket and made available on the Internet. If you submit an electronic comment, EPA recommends that you include your name and other contact information in the body of your comment and with any disk or CD - ROM you submit. If EPA cannot read your1 0/28 /1 1 11

comment due to technical difficulties and cannot contact you for clarification, EPA may not be able to consider your comment. Electronic files should avoid the use of special characters, any form of encry

ption, and be free of an y defects or viruses. For additional information about EPA ’ s public docket visit the EPA Docket Center homepage at http://www.epa.gov/epahome/dockets.htm . All documents in the docket are listed in the Federal Docket Management Sy stem index at www.regulations.gov. Although listed in the index, some information is not publicly available, i.e., CBI or other information whose disclosure is restricted by statute. Certain other material, such as copy righted material, is not placed on the Internet and will be publicly

available only

in hard copy

form. Publicly

available docket materials are available either electronically through www.regulations.gov or in hard copy at the Air and Radiation Docket, EPA/DC, EPA West Building, Room B - 102, 1301 Constitution Avenue, NW, Washington, DC. The Public Reading Room is open from 8:30 a.m. to 4:30 p.m., Monday through Friday , excluding legal holiday s. The telephone number for the Public Reading Room is (202) 566 - 1744, and the telephone number for the Air and Radiation Docket is (202) 566 - 1742. 7. **Term Definitions** The table below lists and defines all of the data elements listed in the summary and revision forms found in th e database.

**Data Elem ent**  **Definition** City City where the MA CT facility is located Commenter Email Address Email address for person providing comments Commenter General Comment A general descriptive comment on the revision Commenter Name Name of person providing comments Commenter Organization Commenter's affiliation - state/local/agency, trade association, company, etc . Commenter Phone Number Phone number for person providing comments Control Measure In Place Are control measures in place? (Yes or No) Control Measure Select control mea s ure from list provided, and b riefly describe the control measure County Name County n ame for MA CT facility Data Source Description Descriptive text associated with data source code

Data Source Code Code indicating source of emissions estimate (state, EPA, TRI, etc.) . All codes are defined in l ookup tables at http://www.epa.gov/ttn/chief/net/2005inventory.html . Delete Indicate here if the facility or record should be deleted1 0/28 /1 1 12 **Data Elem ent**  **Definition** Delete Comment Describes the reason for deletion Emission Calculation Method Code For Revised Emissions Code description of the method used to derive emissions . For example, CEM, material b alance, s tack t est, etc. Emission Release Point ID State/local/tribal ID for point /location where emissions are released to ambient air Emission Release Point Ty pe The code for physical configuration of the release

point , i.e. vertical, fugitive , etc . Emission Release Point Ty pe Description Descriptive text for EmissionReleasePointT ype code Emission Ty

pe Code describing temporal designatio n of emissions reported, i.e., entire period, average weekday, etc. Emission Unit ID Unique ID reported c onsistently over time by state/local/tribal agency Emissions (TPY) Numeric value of routine emissions in tons/year End Date End date of the period in which reported emissions occur, e.g., 200 5 1231 = December 31, 200 5 EPA Region EPA Regional Code . All codes are defined in l ookup tables at http://www.epa.gov/ttn/chief/net/2005inventory.html . Exit Gas Flow Rate Numeric value of stack gas flow rate in actual cubic feet per second Exit Gas Tem

perature The temperature of an exit gas stream (degree Fahrenheit) Exit Gas Velocity The velocity of an exit gas stream (feet per second) F acility Category Desc Definition associated with Facility Category Code Facility Category Code indicating if HAP emitting facility is major or area . All codes are defined in l ookup tables at http://www.epa.gov/ttn/chief/net/2005inventory.html . Facility Name The name of the facility of the MACT facility Facility Registry Identifier The ID number assigned by the EPA Facility Registry Sy stem . FRS IDs can be found at: http://www.epa.gov/enviro/html/facility.html . FIPS 5 digit c ode assigned to state and county . All codes are defined in l ookup tables at http://www.epa.gov/ttn/chief/net/2005inventory.html . Fugitive W idth (N - S) (ft) D imension of the source in the north - south (y - ) direction, commonly referred to as width Fugitive Angle (degrees) Release angle (clockwise from true North); orientation of the y - dimension relative to true North, measured positive for clo c kwise starting at 0 degrees (maximum 89 degrees) ; will assume 0 degree s if it is not provided in data submittal Fugitive L ength (E - W) (ft) D imension of the source in the east - we st (x - ) direction, commonly referred to as length HAP C ategory Name Broader grouping to which an individual chemical compound is assigned to by EPA . For example, “lead and compounds” contains all pollutants containing lead . HAP Emissions Performance Level Code that represents the performance level, or operating scenario, for the HAP emissions reported. Actual, allowable, maximum and potential .1 0/28 /1 1 13 **Data Elem ent**  **Definition** HAP Emissions Performance Level Description Descriptive text associated with code for HAP Performance Level

Latitude (decimal degrees) Latitude measure in decimal degrees of the angular distance on a meridian north or south of the equator . Positive (+) data point for N America. Include (+) sign, Ex. +78.123456 . For point sources this represents the center of the source; for fugitive sources this is the southwest corner i f the fugitive angle i s zero , or the we st ern most corner if the fugitive angle is greater than zero. Location Address Phy sical street a ddress for MACT facility Location Default Flag Code that indicates source of locational coordinates . All codes are defined in l ookup tables at http://www.epa.gov/ttn/chief/net/2005inventory.html . For example, SITEAVG indicates site average .

Longitude (decimal degrees) Longitude measure in decimal degrees of the angular distance on a meridian east or west of the prime meridian . Negative ( - ) data point for N America. Include ( - ) sign, Ex. - 123.234561 . For point sources this represents the center of the source; for fugitive sources this is the southwest corner i f the fugitive angle i s z ero , or the western most corner if the fugitive angle is greater than zero. MACT Code Code assigned to Maximum Achievable Control Technology regulated sources . Identifies one or more similar processes that cause hazardous air pollutant emissions that are subject to a MACT determination . MACT Source Category Descriptive text associated with MA CT code

MACT Com

pliance Status Describes Major/Area classification and status under CAAA Sections 112&129 . Codes and definitions are as follows: 01

– Major Source (> 10/25 tpy), c om pliance date has not yet occurred. 02

– Major Source (>10/25 tpy), c om pliance date has occurred. 03

– Area Source (<10/25tpy) category listed in, and subject to, Section 112 &129 st an dar ds. 04

– Area Source (<10/25tpy) category listed in, but not subject to, Section 112 &129 st and ard s as a synthetic minor. 05

– Area Source (<10/25tpy) category listed in, but not subject to, Section 112 &129 st and ard s as true area or natural minor source. 06

– Rule only aff

ects major sources; area may be flagg ed . 07

– Rule only covers certain HAPs; all HAPs flagged .1 0/28 /1 1 14 **Data Elem ent**  **Definition**

MACT flag Describes how MACT Code w as assigned . Codes are as follows:

- EFIG - BASED

– MACT Code assigned by U . S . EPA Emission Factor and Inventory Group (emissions data provided by various sources) ;

- ESD - BA SED

– MA CT Code assigned by U . S . EPA Emission Standards Division (ESD) ( emissions data usually provided by ESD ) ;

- FACILLIST - * MA CT code assigned to facilities listed on MACT category lists compiled by EPA (emissions data provided by various sources) ;

- NAICS - DEFAULT

– MACT Code assigned based on NAICS code ;

- SCC - DEFAULT

– MACT Code assigned based on SC C ;

- SIC - DEFAULT

– MACT Code assigned based on SI C code ;

- STATE - BASED

– MACT Code assigned by state agency . Malfunction Emissions (TPY) Emissions that occurred during periods of malfunction. Malfunction Emissions Max Hourly Rate (lbs per hour) Maximum hourly emission rate for emissions that occurred during periods of malfunction.

NAICS Code North American Industry Classification Code . An industry classification system, NAICS is erected on a production - oriented conceptual framework that groups establishments into industries according to similarity in the process used to produce goods or services . NEI Site ID Unique i dentifier assigned b y EPA to NEI Facility North American Datum North American Datum (NAD) for longitude and latitude coordinates (NAD27 or NAD83). If left blank NAD 83 is assumed . Pollutant_Code_Desc Descriptive text associated with pollutant code Pollutant Code Code assigned b y EPA to individual pollutants . All codes are defined in l ookup tables at http://www.epa.gov/ttn/chief/net/2005inventory.html . Process ID Unique ID reported consistently over tim e by state/local/ tribal agency REVISED City Enter revised c ity name here REVISED County Name Enter revised county n ame here REVISED Emission Release Point Type Enter revised EmissionReleasePointType here REVISED E missions (TPY) Enter revised routine emissions value here REVISED End Date Enter revised E nd Date here REVISED Exit Gas Flow Rate (cuft/sec) Enter revised Exit Gas F lowrate here REVISED Exit Gas Tem perature (F) Enter revised Exit Gas T em perature here REVISED Exit Gas Velocity (ft/sec) Enter revised Exit Gas V elocity here REVISED Facility Category Code Enter revised Facility Category C ode here REVISED Facility Name Enter revised Facility N ame here REVISED Facility Registry Identifier Enter revised Facility Registry Identifier here REVISED HAP Emissions Performance Level Enter revised HAP Emissions Performance Level here REVISED Latitude (decimal degrees) Enter revised L atitude here REVISED Location Address Enter revised Location A ddress here REVISED Longitude (decimal degrees) Enter revised L ongitude here1 0/28 /1 1 15 **Data Elem ent**  **Definition** REVISED MACT Code Enter revised MACT Code here REVISED Pollutant Code Enter revised Pollutant C ode here REVISED SCC Enter revised SCC Code here REVISED Stack Diameter (ft) Enter revised Stack D iameter here REVISED Stack Height (ft) Enter revised S t ack H eight here REVISED Start Date Enter revised Start D ate here REVISED State Enter revised S tate here REVISED Tribal Code Enter revised Tribal Code here REVISED Zip Code Enter rev ised Zip C ode here Routine Emissions Max Hourly Rate (lbs per hour) Maximum hourly emission rate for routine emissions. SCC Source Classification Code . All codes are defined in l ookup tables at http://www.epa.gov/ttn/chief/net/2005inventory.html . SCC Description Descriptive text associated with SCC code

SIC Code Standard Industrial Classification code . The Standard Industrial Classification (abbreviated 'SIC') was a United States government system for classifying industries by a four - digit code . Established in the 1930s, it is being supplanted by the six - digit N AI CS SIC Code Description Descriptive text associated with SIC Code

Stack Default Flag The stack default code is a 5 - digit code that indicates if and how

the stack parameters were defaulted . Each digit represents a stack parameter in the following order: stack height, exit gas temperature, stack diameter, exit gas velocity, and exit gas flowrate . The individual digits in the string indicate the source of the defaulted parameters: 0= Original Value, 1 = SCC Default, 2 = SIC Default, 3 = National Default, 4 = Calculated Value, 5 = MACT Default, 6 = State Revision, 8 = CAMD Value . Thus, 22222 means all 5 parameters were d efaulted using SIC Default List . Stack Default Flag Description Descriptive text associated with StackDefaultFlag Stack Diameter The diameter (in feet) of a stack Stack Height The height (in feet) of a stack Start Date Start date of the period in which reported emissions occur , e.g., 200 5 0101 = January 1, 200 5 Startup Emissions (TPY) Emissions that occurred during startup periods. Startup Emissions Max Hourly Rate (lbs per hour) Maximum hourly emission rate for startup period emissions. State State where MACT facility is located State Abbreviation Two - character alphabetical code for state State County FIPs 5 digit code assigned to state and county . All codes are defined in l ookup tables at http://www.epa.gov/ttn/chief/net/2005inventory.html State Facility Identifier Unique ID number used by a state/loca l/tribal agency to identify a facility Shutdown Emissions (TPY) Emissions that occurred during shutdown periods.1 0/28 /1 1 16 **Data Elem ent**  **Definition** Shutdown Emissions Max Hourly Rate (lbs per hour) Maximum hourly emission rate for shutdown period emissions. Tribal Code Code that represent American Indian tribes and Alaskan Native entities . All codes are defined in l ookup tables at http://www.epa.gov/ttn/chief/net/2005inventory.html Tribe Name Tribal n ame Year Closed Indicate the year closed if the facility is no longer in operation (permanently closed) Zip Code Zip Code for the MACT facility