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### Instructions for Submitting Data Corrections **Introduction** EPA seeks comments on hazardous air pollutant (HAP) emissions and other model input data that we used to assess risks from selected industrial major source categories, as required b y section 112( f) of the Clean Air Act. The source of this information is the most recent version of the 2005 National Emissions Inventory (2005 NEI), updated with data collected by EPA’s Office of Air Qualit y Planning and Standards. For more information about the 2005 N ational Emissions Inventory (NE I), please go to: http://www.epa.gov/ttn/chief/net/2005inventory .html . 1 The Microsoft Access file (attached at the end of this document) will enable you t o 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 su bmit revisions to EPA are outlined below. Section 6 lists specific steps for submitting y our final changes to the EPA. Section 7 of this document defines important terms (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. Facilit y 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 hyper links to text both inside and outside the document.11/18/11 2 c. Revise Process Fields d. Revise Facility

Information e. Add Data to an Existing Facilit y 4. Add a Facility 5. Review Revisions 6. Submit Revisions 7. Term Definitions Please note that the category - specific files contain all emissions data for the facilities identified as belonging to a MACT category . Thus, some of the emissions may be from processes NOT associated with the MACT category of interest. The column labeled “MACT Code” indicates if the HAP pollutant emissions are associated with the MACT category of interest or another MACT category

at the facility . For example, if th e MACT code is labeled 0107 - 2, the emissions are described as being associated with “Industrial/Commercial/Institutional Boilers & Process Heaters

– gas.” These are shown to provide a complete dataset for the facility and/or to help the reviewer spot addit ional processes which should be assigned to the MACT category . 1. **Application Overview** When this Microsoft Access 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, y ou should select the “View Summary Data” button to view summary data before making revisions or adding any facilities to this file. After reviewing the current data for your MACT category , y ou can proceed to the “ Revise Data ” forms. After making corrections to this file, y ou should review y our corrections and then submit your revisions to EPA as outlined on the “Submit Revisions” form.11/18/11 3

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 w ith 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 y ou to c hange the aggregation level (“Options”) of the data and/or filter by pollutant (“Filter Data”).

a. **Options**

– These buttons allow you to view summary data at varying levels of detail. When y ou click these buttons, new forms open with data level and filter buttons appropriate to the dataset display ed. These buttons and their accompanying forms are as follows: i. **MACT HAP Emissions (View National Data Form) –**  Discussed above, this form display s 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 Form)** 

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

– pollutant level. This form would allow y ou, for example, to find y our count y and view total emissions by pollutant from the MACT category . After viewing emissions at the county level, y ou might want to view all facilities in the county to dete rmine 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 for11/18/11 4 all processes at all facilities assigned to this MACT category . The column labeled “MACT Code” indicates if the HAP pollutant emissions are associated with the MACT category or another MACT category at the facility . For example, if the M ACT code is labeled 0107 - 2, the emissions are described as being associated with “Industrial/Commercial/ Institutional Boilers & Process Heaters

– gas.” These are shown to provide a complete dataset for the facility and/or to help y ou spot additional proce sses which should be assigned to the MACT category . After viewing emissions at the facilit y level, you might want to view all data associated with that facility to make sure that latitude/longitudes, stack parameters, Source Classification Codes (SCC), St andard Industrial Classification (SI C) codes, North American Industry Classification Sy stem (NAI CS) codes, 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 y ou to filter the current dat aset b y different attributes. The available filters change depending upon the detail level of the display ed 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 c hoose one filter after another to progressivel y narrow down the data to records of interest. For example, on the State County MACT Emissions level, y ou can filter by state and then by pollutant. The filters available on each data level are:11/18/11 5  National Data

– Pollutant filter.  State County

MACT Emissions

– Pollutant, state, and count y filters.  Facilit y MACT HAP Emissions

– Facility , pollutant, state, county , and MACT code filters.  All Data

– Facility , pollutant, state, county , and MACT code 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 facilit y level, proceed to “Revise Data” on the “Main Page” if there any

omissions or errors that need correction. 3. **Revise Data** When y ou select “Revise Data” the “Reviewer Information” form first opens. You must complete this form before continuing. This form collects contact information on the reviewer:

 Name  Organizatio n  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 Information” for m will appear every

time y ou 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 sel ect 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 five actions: “Revise Data for Selected Facility ,” “Add a Faci lity ,” “Add Data to an Existing11/18/11 6

Facilit y,” “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 Facilit y – Selecting this button opens a f orm which allows y ou to select the specific data attributes to be revised. These attributes are:

a. **Revise Emissions 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 emissions (tons per year), pollutant code, and HAP performance level. 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 we ll. Because EPA is modeling both short - and long - term risks, y ou 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 co mment 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 proces s 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, the emission process will be considered uncontrolled. You can also indicate that the HAP emissions value should be deleted, and provide a reason for this deletion. Please note that you can onl y enter data into the revision fields. The remaining fields are locked. When y ou are finished making your changes, select “S ave Records” at the bottom of the form to save y our revisions and move to another form. Please note: If you suggest changes to or add emissions values, you will need to provide additional documentation for these emission revisions. (See Section 6 for mor e information.)11/18/11 7 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 e mission release point t ype (stack vs. fugitive), fugitive 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 revi sion fields. The remaining fields are locked. When yo u 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 code a nd SCC. You can also enter a general comment on the revision. You only enter data into the revision fields. The remaining fields are locked. When y ou are finished making your changes, select “Save Records.” d **. Revise Facility Information** 

– Selecting this option brings up data fields that describe the facilit y. Fields that can be revised here are: tribal code, count y 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 comment on the revision, indicate that the facility should be removed from the NEI if it has permanently closed and when it closed, or indicate the facility should be removed from the MACT category . Please note that you can only ente r data into the revision fields. The remaining fields are locked. When yo u are finished making your changes, select “Save Records.”

e. **No Revisions**

– Select this button to indicate you have reviewed the facility data and have no revisions. You cannot select this button if y ou have made revisions to the facility . After y ou make this selection, y ou will not be able to make revisions to the facility data.11/18/11 8

Add Data to an Existing Facilit y – Selecting the “Add Data to an Existing Facilit y” button opens a form wh ich 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. In addition to providing additional annual emission estimates, y ou 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) . When yo u are finished makin g 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 y our review of the original NEI facility and emissions data. After clicking this button, y o 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 different facility , returning to the Main Page, reviewing yo ur changes, or preparing the file to submit y our changes to EPA. 4. **Add a Facility** When y ou select “Add a Facilit y” 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 facilit y and emission release point information. This information includes: tribal code; county name; facility

category code (major or area); facility name; location address cit y, state, and zip code; SI C code; NAI CS code; SCC; MACT code; pollutant; routine, startup, shutdown, and malfunction (SSM) emissions values and rates (and number of SSM occurrences); stack parameters; and latitude/longitude. The reviewer should also enter on e set of appropriate identifiers: facility registry identifier, 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 M ACT code (from the drop down list) or indicate that it is not a MACT - associated process. When you are finished making your changes, select

2 Please note: this directory should already exist on your PC. The program will not create new subdirectories.11/18/11 9

“Save Records.” To create additional emission unit, process, and HAP emissions records, now select “Add Data to an Ex isting Facility” and continue with y our data entry. 5. **Review Revisions** When y ou open the “Review Revisions” form, y ou can export y our suggested revisions to Microsoft Excel so that you can print and review them. This form contains five buttons:

1. View Emissions Revisions; 2. View Facility

Revisions; 3. Export Revisions to Excel File; 4. Submit Revisions; and 5. Back to Main After selecting options 1 or 2, the corresponding form will open which will display the selected revisions. The Emissions Revi sions form contains all additions and revisions entered under the Revise Emissions Fields , Revise Process Fields , and Revise Stack Fields forms as described abo ve. The Facility

Revisions form contains all additions and revisions entered under “ Revise Facilit y Information ” form. You can export these revisions by clicking the “Export Revisions to Excel file” button. After clicking thi s button, y o 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 will appear in the revise data forms. 6. **Submit Revisions** Upon completion of all additions and correcti ons, or acceptance of the data with no revisions, yo u need to submit y our 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

3 Please note: this directory should already exist on your PC. The program will not create ne w subdirectories.11/18/11 10

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 following convention: XXXX_Revisions_LastName.xls, where XXXX = 4 - 6 digit MACT code 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, y ou should prepare supporting docum entation. 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 lis ted in the next paragraph. Submit your revision database, identified by Docket ID No. EPA - HQ - OAR - 2011 - 0435, 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 OAR - 2011 - 0435.  Mail: U.S. Postal Service, send comments to: EPA Docket Center, EPA West (Air Docket) Attentio n Docket ID No. EPA - HQ - OAR - 2011 - 0435, 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 - 2011 - 0435. Such deliveries are onl y accepted during the Docket’s normal hours of operation, and special arrangements should be made for deliveries of boxed i nformation. Instructions : Direct y our comments to Docket ID No. EPA - HQ - OAR - 2011 - 0435. 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, inclu ding an y 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 o therwise protected through www.regulations.gov or11/18/11 11

e - mail. The www.regulations.gov website is an “anony mous access” sy stem, which means EPA will not know y our identity or contact information unless you provide it in the body of y our 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 as part of the comment that is placed in the public docket and made available on the Internet. If y ou 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 y ou submit. If EPA cannot read your comment due to technical difficulties and cannot contact you for clarificatio n, EPA may not be able to consider your comment. Electronic files should avoid the use of special characters, an y 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 h omepage 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 inform ation 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 be low lists and defines all of the data elements listed in the summary and revision forms found in the database.11/18/11 12 **Data Elem ent**  **Definition** City City where the MACT facility is located Commenter Email Address Em ail address for person providing comments Commenter General Comment A general descriptive comment on the revision Commenter Name Nam e of person providing comments Commenter Organization Commenter's affiliation - state/local/agency, trade association, company, etc. Commenter Phone Number Phone numb er for person providing comments Control Measure In Place Are control measures in place? (Yes or No) Control Measure Select control measure from list provided, and briefly describe the control measure County Name County name for MACT facility Data S ource 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 lookup tables at http://www.epa.gov/ttn/chief/net/2005inventory.html . Delete Indicate here if the facility or record should be deleted 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 balance, stack test, etc. Emission Release Point ID State/local/tribal ID for point/location where emissions are released to ambient air Emission Release Point Type The code for physical con figuration of the release point, i.e. vertical, fugitive, etc. Emission Release Point Type Description Descriptive text for EmissionReleasePointT ype code Emission T ype Code describing temporal designation of emissions reported, i.e., entire period, avera ge w eekday, etc. Emission Unit ID Unique ID reported consistently 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., 20051231 = December 31, 2005 EPA Region EPA Regional Code. All codes are defined in lookup 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 Temperature The temperature of an exit gas stream (degree Fahrenheit) Exit Gas Velocity The velocity of an exit gas stream (feet per second) Facility 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 lookup 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.go v/enviro/html/facility.html .11/18/11 13 **Data Elem ent**  **Definition** FIPS 5 digit code assigned to state and county. All codes are defined in lookup tables at http://www.epa.gov/ttn/chief/net/2005inventory.html . Fugitive Width (N - S) (ft) D im ension 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 clockwi se starting at 0 degrees (maximum 89 degrees); will assume 0 degrees if it is not provided in data submittal Fugitive Length (E - W) (ft) D im ension of the source in the east - we st (x - ) direction, commonly referred to as length HAP Category Name Broader grou ping 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. 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 distan ce 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 if the fugitive angle is zero, or the we stern most corner if the fugitive angle is greater than zero. Location Address Phy sical street address for MACT facility Location Default Flag Code that indicates source of locational coordinates. All codes are defined in lookup 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 if the fugitive angle is zero, or the w estern 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 MACT code11/18/11 14 **Data Elem ent**  **Definition**

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

– Major Sour ce (>10/25 tpy), compliance date has not yet occurred. 02

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

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

– Area Source (<10/25tpy) category listed i n, but not subject to, Section 112 &129 standards as a synthetic minor. 05

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

– Rule only affects major sources; area may be flagged. 07

– Rule only covers certain HAPs; all HAPs flagged.

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

- INDUSTRY - BASED

– MACT Code assigned by industry (emissions data provided by industry);

- SPPD - BASED

– MACT Code assigned by U.S. EPA Sector Policies and Program Division (SPPD) (emissions data usually provided by SPPD);

- FACILLIST - * MACT 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 SCC;

- SIC - DEFAULT

– MACT Code assigned based on SIC 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 syste m, 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 identifier assigned by EPA to NEI Facility North Ame rican Datum North American Datum (NAD) for longitude and latitude coordinates (NAD27 or NAD83). If left blank NAD83 is assumed. Pollutant_Code_Desc Descriptive text associated with pollutant code Pollutant Code Code assigned by EPA to individual pollutants. All codes are defined in lookup tables at http://www.epa.gov/ttn/chief/net/2005inventory.html . Process ID Unique ID reported consistently over time by state/local/ tribal agency11/18/11 15 **Data Elem ent**  **Definition** REV ISED City Enter revised city name here REVISED County Name Enter revised county name here REVISED Emission Release Point Type Enter revised EmissionReleasePointType here REVISED Emissions (TPY) Enter revised routine emissions value here REVISED End Dat e Enter revised End Date here REVISED Exit Gas Flow Rate (cuft/sec) Enter revised Exit Gas Flowrate here REVISED Exit Gas Temperature (F) Enter revised Exit Gas Temperature here REVISED Exit Gas Velocity (ft/sec) Enter revised Exit Gas Velocity here RE VISED Facility Category Code Enter revised Facility Category Code here REVISED Facility Name Enter revised Facility Name 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 Latitude here REVISED Location Address Enter revised Location Address here REVISED Longitude (decimal degrees) Enter revised Longitude here REVISED MACT C ode Enter revised MACT Code here REVISED Pollutant Code Enter revised Pollutant Code here REVISED SCC Enter revised SCC Code here REVISED Stack Diameter (ft) Enter revised Stack Diameter here REVISED Stack Height (ft) Enter revised Stack Height here REVISED Start Date Enter revised Start Date here REVISED State Enter revised State here REVISED Tribal Code Enter revised Tribal Code here REVISED Zip Code Enter revised Zip Code here Routine Emissions Max Hourly Rate (lbs per hour) Maximum hourly emiss ion rate for routine emissions. SCC Source Classification Code. All codes are defined in lookup tables at http://www.epa.gov/ttn/chief/net/2005inventory.html . SCC Description Descriptiv e 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, i t is being supplanted by the six - digit NAICS 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 w ere defaulted. Each digit represents a stack parameter in the following order: stack height, exit gas temperature, stack diam eter, 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 defaulted using SIC Default List. Stack Default Flag Description Descriptive text associated with S tackDefaultFlag Stack Diameter The diameter (in feet) of a stack Stack Height The height (in feet) of a stack11/18/11 16 **Data Elem ent**  **Definition** Start Date Start date of the period in which reported emissions occur, e.g., 20050101 = January 1, 2005 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 Tw o - character alphabetical code for state State County FIPs 5 digit code assigned to state and county. All codes are defined in lookup tables at http://www.epa.gov/ttn/chief/net/2005inventory.html State Facility Identifier Unique ID n umber used by a state/local/tribal agency to identify a facility Shutdown Emissions (TPY) Emissions that occurred during shutdown periods. Shutdown Emissions Max Hourly Rate (lbs per hour) Maximum hourly emission rate for shutdown period emissions. Trib al Code Code that represent American Indian tribes and Alaskan Native entities. All codes are defined in lookup tables at http://www.epa.gov/ttn/chief/net/2005inventory.html Tribe Name T ribal name Year Closed Indicate the year closed if the facility is no longer in operation (permanently closed) Zip Code Zip Code for the MACT facility 8. **P&R IV 2005 NEI Data File**

rtr_mact_P&RIV.zip