---
FIED
- Facility Identifiers
  - registryID
    - dtype: float
    - description: >
      The identification number assigned by the EPA Facility Registry Service to 
      uniquely identify a facility site
    - source: <a href="https://www.epa.gov/frs">EPA Facility Registry Service (FRS)</a>
  - name
    - dtype: object
    - description:>
         The public or commercial name of a facility site (i.e., the full name that commonly
         appears on invoices, signs, or other business documents, or as assigned by the
         state when the name is ambiguous).
    - source: <a href="https://www.epa.gov/frs">EPA Facility Registry Service (FRS)</a>
  - eisFacilityID
    - dtype: float
    - description: first EPA Emissions Inventory System (EIS) ID associated with registryID
    - source: >
         <a href="https://www.epa.gov/frs">EPA Facility Registry Service (FRS)</a> and 
         <a href="https://www.epa.gov/air-emissions-inventories/national-emissions-inventory-nei">EPA National Emissions Inventory (NEI)</a>
  - eisFacilityIDAdditional
    - dtype: float
    - description: first EPA Emissions Inventory System (EIS) ID associated with registryID
    - source: >
         <a href="https://www.epa.gov/frs">EPA Facility Registry Service (FRS)</a> and 
         <a href="https://www.epa.gov/air-emissions-inventories/national-emissions-inventory-nei">EPA National Emissions Inventory (NEI)</a>
  - ghgrpID
    - dtype: float
    - description: first EPA Greenhouse Gas Reporting Program (GHGRP) ID associated with registryID
    - source: <a href="https://www.epa.gov/frs">EPA Facility Registry Service (FRS)</a>
  - ghgrpIDAdditional
    - dtype: float
    - description: additional Greenhouse Gas Reporting Program (GHGRP) IDs associated with registryID
    - source: <a href="https://www.epa.gov/frs">EPA Facility Registry Service (FRS)</a>
  - naicsCode
    - dtype: float
    - description: >
         first North American Industrial Classification System (NAICS) codes 
         associated with registryID.
         See <a href="https://www.census.gov/naics/"> documentation </a> for more information
         on NAICS codes and their descriptions. 
    - source: <a href="https://www.epa.gov/frs">EPA Facility Registry Service (FRS)</a>
  - naicsCodeAdditional
    - dtype: float
    - description: >
         additional North American Industrial Classification System (NAICS) codes 
         associated with registryID.
         See <a href="https://www.census.gov/naics/"> documentation </a> for more information
         on NAICS codes and their descriptions. 
    - source: <a href="https://www.epa.gov/frs">EPA Facility Registry Service (FRS)</a>
  - siteTypeName
    - dtype: object
    - description: >
       descriptive name for the type of site. EPA values are currently
       'STATIONARY', 'POTENTIALLY CONTAMINATED SITE', 'FACILITY',
       'PORTABLE', 'CONTAMINATED SITE', 'BROWNFIELDS SITE', 'MOBILE',
       'CONTAMINATION ADDRESSED', and 'WATER SYSTEM'.
    - source: <a href="https://www.epa.gov/frs">EPA Facility Registry Service (FRS)</a>
  - sensitiveInd 
    - dtype: float
    - description: Indicates whether or not the associated data is enforcement sensitive.
    - source: <a href="https://www.epa.gov/frs">EPA Facility Registry Service (FRS)</a>
  - smallBusInd 
    - dtype: float
    - description: >
         Code indicating whether or not a business is requesting relief under EPA’s Small Business Policy, 
         which applies to businesses having less than 100 employees.
    - source: <a href="https://www.epa.gov/frs">EPA Facility Registry Service (FRS)</a>
  - envJusticeCode
    - dtype: float
    - description: >
         The code that identifies the type of environmental justice concern affecting the
         facility or enforcement action.
    - source: <a href="https://www.epa.gov/frs">EPA Facility Registry Service (FRS)</a>
- Unit Identifiers
  - eisUnitID
    - dtype: float
    - description: >
       unique Emissions Inventory System (EIS) identifier for unit associated with a emissions-producing process.
       More than one eisUnitID may be associated with a eisProcessID.
    - source: <a href="https://www.epa.gov/air-emissions-inventories/national-emissions-inventory-nei">EPA National Emissions Inventory (NEI)</a>
  - unitName
    - dtype: object
    - description: reported name of unit.
    - source: >
       <a href="https://www.epa.gov/frs">EPA Facility Registry Service (FRS)</a> or
       <a href="https://www.epa.gov/ghgreporting"> EPA GHGRP.</a>
  - unitType 
    - dtype: float
    - description: >
       Identified unit type. May be taken from a reported unit type, unit description, or other 
       data field. 
    - source: >
       <a href="https://www.epa.gov/air-emissions-inventories/national-emissions-inventory-nei">EPA National Emissions Inventory (NEI)</a>
       <a href="https://www.epa.gov/ghgreporting"> EPA GHGRP. </a>
  - unitTypeStd
    - dtype: object
    - description: >
       standardized unit type. Current types are 'dryer', 'other combustion', 'kiln', 'boiler', 'turbine', 'pump', 
       'generator', 'other' [non-combustion unit], 'heater', 'engine', 'furnace', 'oven', 'incinerator', 'flare', 
       'thermal oxidizer', 'compressor', 'distillation', 'building heat', and 'stove'.
    - source: <a href="https://www.epa.gov/air-emissions-inventories/national-emissions-inventory-nei">EPA National Emissions Inventory (NEI)</a>
  - unitDescription
    - dtype: object
    - description: description of the unit
    - source: <a href="https://www.epa.gov/air-emissions-inventories/national-emissions-inventory-nei">EPA National Emissions Inventory (NEI)</a>
  - designCapacity 
    - dtype: float
    - description: design capacity of the unit. Directly reported, or obtained from unit description or other data fields. 
    - source: >
       <a href="https://www.epa.gov/air-emissions-inventories/national-emissions-inventory-nei">EPA National Emissions Inventory (NEI)</a> or 
       <a href="https://www.epa.gov/ghgreporting"> EPA GHGRP. </a>
  - designCapacityUOM
    - dtype: object
    - description: >
       unit of measurement (UOM) for design capaicty. Currently includes 'MW' [megawatts], 'TON/DAY', 
       'E3LB/HR', 'LB/HR', 'TON/HR', 'GAL', 'FT3/DAY', 'E3GAL/HR', 'DATAMIGR', 'E3FT2/HR', 'TON/YR',
       'E6FT2/YR', 'E3BDFT/YR', 'GAL/HR', 'LB/YR', 'GAL/DAY', 'E6BDFT/YR',
       'GAL/YR', 'DATAMIGRATION', 'FT3/MIN', 'GAL/MIN', 'FT2/HR', 'AMP-HR/HR', 'E3FT3/DAY', 
       'FT3SD/HR', 'FT2/YR', and 'BBL'. 
    - source: <a href="https://www.epa.gov/air-emissions-inventories/national-emissions-inventory-nei">EPA National Emissions Inventory (NEI)</a>
- Geographic Identifiers
  - latitude 
    - dtype: float
    - description: latutide associated with registryID
    - source: <a href="https://www.epa.gov/frs">EPA Facility Registry Service (FRS)</a>
  - longitude
    - dtype: float
    - description: longitude associated with registryID
    - source: <a href="https://www.epa.gov/frs">EPA Facility Registry Service (FRS)</a>
  - geoID
    - dtype: float
    - description: >
       Census Geographic Identifier. Numeric codes that uniquely identify all administrative/legal and 
       statistical geographic areas for which the Census Bureau tabulates data. See 
       <a href="https://www.census.gov/programs-surveys/geography/guidance/geo-identifiers.html"> GEOID overview </a> 
       for more information. 
    - source: <a href="https://www.epa.gov/frs">EPA Facility Registry Service (FRS)</a>
  - locationAddress
    - dtype: object
    - description: >
       The address that describes the physical (geographic) location of the front door or
       main entrance of a facility site, including
       urban-style street address or rural address.
    - source: <a href="https://www.epa.gov/frs">EPA Facility Registry Service (FRS)</a>
  - postalCode
    - dtype: float
    - description: >
       The combination of the five digit ZoneImprovement Plan (ZIP) code and the four
       digit extension code (if available) that represents the geographic segment that is
       a subunit of the ZIP Code, assigned by the U.S. Postal Service to a geographic
       location, where the facility site is located.
    - source: <a href="https://www.epa.gov/frs">EPA Facility Registry Service (FRS)</a>
  - cityName 
    - dtype: object
    - description: >
       The name of the city, town, village or other locality, when identifiable, within whose
       boundaries (the majority of) the facility site is located. This is not always the same as
       the city used for USPS mail delivery.
    - source: <a href="https://www.epa.gov/frs">EPA Facility Registry Service (FRS)</a>
  - countyName 
    - dtype: object
    - description: county name of facility.
    - source: <a href="https://www.epa.gov/frs">EPA Facility Registry Service (FRS)</a> 
  - stateCode
    - dtype: object
    - description: two-letter state abbreviation (e.g., "AL") of facility
    - source: <a href="https://www.epa.gov/frs">EPA Facility Registry Service (FRS)</a>
  - countyFIPS 
    - dtype: float
    - description: >
       The Federal Informationl Processing Standard (FIPS) code that represents the county or
      county equivalent and the state or state equivalent of the United States.
    - source: <a href="https://www.epa.gov/frs">EPA Facility Registry Service (FRS)</a>
  - legislativeDistrictNumber
    - dtype: object
    - description: The number that represents a Legislative District within a state. 
    - source: <a href="https://www.epa.gov/frs">EPA Facility Registry Service (FRS)</a>
  - epaRegionCode
    - dtype: float
    - description: EPA Region Code associated with registryID
    - source: <a href="https://www.epa.gov/frs">EPA Facility Registry Service (FRS)</a>
  - hucCode8
    - dtype: float
    - description: >
       Hydrolic Unit Code (HUC) from the USGS. Accoring to the USGS, hydrologic unitsare classified 
       into four levels: regions, sub-regions, accounting units, and cataloging units. 
       Each unit is identified by a unique hydrologic unit code (HUC) consisting of two to 
       eight digits based on its classification.
    - source: <a href="https://www.epa.gov/frs">EPA Facility Registry Service (FRS)</a>
- Energy and Emissions Identifiers
  - fuelType 
    - dtype: float
    - description: >
       fuel type that is directly reported, or is derived from SCC codes, unit or process descriptions,
       or other data fields. 
    - source: >
       <a href="https://www.epa.gov/air-emissions-inventories/national-emissions-inventory-nei">EPA National Emissions Inventory (NEI)</a> or
       <a href="https://www.epa.gov/ghgreporting"> EPA GHGRP.</a>
  - fuelTypeStd
    - dtype: object
    - description: >
       standardized fuel type. Current types are 'diesel', 'naturalGas', 'resFuelOil' [residual fuel oil], 
       'biomass', 'lpgHGL', 'gasoline', 'other', 'coal', 'coke', 'jetA'
    - source: <a href="https://www.epa.gov/air-emissions-inventories/national-emissions-inventory-nei">EPA National Emissions Inventory (NEI)</a>
  - SCC
    - dtype: float
    - description: >
       Source Classification Codes are a standardized hierarchical classification of the 
       different types of activities that generate air emissions. See additional information from 
       <a href="https://sor.epa.gov/sor_internet/registry/scc/SCC-IntroToSCCs_2021.pdf">this documentation.</a>
    - source: <a href="https://www.epa.gov/air-emissions-inventories/national-emissions-inventory-nei">EPA National Emissions Inventory (NEI)</a>
  - eisProcessID 
    - dtype: float
    - description: Emissions Inventory System (EIS) identifier for a emissions-producing process. 
    - source: <a href="https://www.epa.gov/frs">EPA Facility Registry Service (FRS)</a>
  - processDescription 
    - dtype: float
    - description: description of an emissions-producing process (eisProcessID)
    - source: <a href="https://www.epa.gov/frs">EPA Facility Registry Service (FRS)</a>
  - energyMJq0 
    - dtype: float
    - description: minimum estimated energy use by unit in megajoules (MJ). Derived from reported EPA NEI emissions.
    - source:    <a href="https://www.epa.gov/air-emissions-inventories/national-emissions-inventory-nei">EPA National Emissions Inventory (NEI)</a>
  - energyMJq2
    - dtype: float
    - description: median estimated energy use by unit in megajoules (MJ). Derived from reported EPA NEI emissions.
    - source:    <a href="https://www.epa.gov/air-emissions-inventories/national-emissions-inventory-nei">EPA National Emissions Inventory (NEI)</a>
  - energyMJq3 
    - dtype: float
    - description: third quartile estimated energy use by unit in megajoules (MJ). Derived from reported EPA NEI emissions.
    - source:    <a href="https://www.epa.gov/air-emissions-inventories/national-emissions-inventory-nei">EPA National Emissions Inventory (NEI)</a>
  - throughputTonneQ0
    - dtype: float
    - description: minimum estimated throughput by unit in metric tons. Derived from reported EPA NEI emissions.
    - source:    <a href="https://www.epa.gov/air-emissions-inventories/national-emissions-inventory-nei">EPA National Emissions Inventory (NEI)</a>
  - throughputTonneQ2 
    - dtype: float
    - description: median estimated throughput by unit in metric tons. Derived from reported EPA NEI emissions.
    - source:    <a href="https://www.epa.gov/air-emissions-inventories/national-emissions-inventory-nei">EPA National Emissions Inventory (NEI)</a>
  - throughputTonneQ3
    - dtype: float
    - description: third quartile estimated throughput by unit in metric tons. Derived from reported EPA NEI emissions.
    - source: <a href="https://www.epa.gov/air-emissions-inventories/national-emissions-inventory-nei">EPA National Emissions Inventory (NEI)</a>
  - ghgsTonneCO2eQ0 
    - dtype: float
    - description: >
         minimum greenhouse gas emissions by unit in metric tons CO2 equivalent (TonneCO2e),
         calculated from either data reported by EPA NEI, derived from data reported by EPA NEI.
    - source: <a href="https://www.epa.gov/air-emissions-inventories/national-emissions-inventory-nei">EPA National Emissions Inventory (NEI)</a>
  - ghgsTonneCO2eQ2
    - dtype: float
    - description: >
         median greenhouse gas emissions by unit in metric tons CO2 equivalent (TonneCO2e),
         calculated from either data reported by EPA NEI, derived from data reported by EPA NEI.
    - source: <a href="https://www.epa.gov/air-emissions-inventories/national-emissions-inventory-nei">EPA National Emissions Inventory (NEI)</a>
  - ghgsTonneCO2eQ3
    - dtype: float
    - description: >
         third quartile of greenhouse gas emissions by unit in metric tons CO2 equivalent (TonneCO2e),
         calculated from either data reported by EPA NEI, derived from data reported by EPA NEI.
    - source: <a href="https://www.epa.gov/air-emissions-inventories/national-emissions-inventory-nei">EPA National Emissions Inventory (NEI)</a>
  - energyMJ
    - dtype: float
    - description: energy use by unit in MJ, either derived from reported EPA GHGRP emissions, or taken directly from reported data.    
    - source: <a href="https://www.epa.gov/ghgreporting"> EPA GHGRP. </a> 
  - ghgsTonneCO2e
    - dtype: float
    - description: >
         emissions of greenhouse gases (GHGs) in metric tons carbon dioxide 
         equivalents (TonneCO2e) reported by the EPA GHGRP.
    - source:    <a href="https://www.epa.gov/ghgreporting"> EPA GHGRP. </a>
  - energyEstimateSource
    - dtype: float
    - description: Source of energy estimate. Value is either 'nei' or 'ghgrp'.
    - source: not applicable
  - ghgsEstimateSource
    - dtype: float
    - description: Source of ghg emissions estimate. Value is either 'nei' or 'ghgrp'.
    - source: not applicable
- Other Identifiers
- weeklyOpHoursLow_q1
    - dtype: float
    - description: >
         lower bound of 95% confidence interval for average 
         weekly operating hours first quarter. Calculated using reported data.
    - source: <a href="https://www.census.gov/programs-surveys/qpc.html"> Census QPC </a>
- weeklyOpHoursLow_q2
    - dtype: float
    - description: >
         lower bound of 95% confidence interval for average 
         weekly operating hours second quarter. Calculated using reported data.
    - source: <a href="https://www.census.gov/programs-surveys/qpc.html"> Census QPC </a>
- weeklyOpHoursLow_q3
    - dtype: float
    - description: >
         lower bound of 95% confidence interval for average 
         weekly operating hours thrid quarter. Calculated using reported data.
    - source: <a href="https://www.census.gov/programs-surveys/qpc.html"> Census QPC </a>
- weeklyOpHoursLow_q4
    - dtype: float
    - description: >
         lower bound of 95% confidence interval for average weekly operating hours fourth quarter.
         Calculated using reported data.
    - source: <a href="https://www.census.gov/programs-surveys/qpc.html"> Census QPC </a>
- weeklyOpHours_q1
    - dtype: float
    - description: reported average weekly operating hours first quarter. 
    - source: <a href="https://www.census.gov/programs-surveys/qpc.html"> Census QPC </a>
- weeklyOpHours_q2 
    - dtype: float
    - description: reported average weekly operating hours second quarter
    - source: <a href="https://www.census.gov/programs-surveys/qpc.html"> Census QPC </a>
- weeklyOpHours_q3 
    - dtype: float
    - description: reported average weekly operating hours third quarter
    - source: <a href="https://www.census.gov/programs-surveys/qpc.html"> Census QPC </a>
- weeklyOpHours_q4
    - dtype: float
    - description: reported average weekly operating hours fourth quarter
    - source: <a href="https://www.census.gov/programs-surveys/qpc.html"> Census QPC </a>
- weeklyOpHoursHigh_q1 
    - dtype: float
    - description: >
         upper bound of 95% confidence interval for average weekly operating hours first quarter.
         Calculated using reported data.
    - source: <a href="https://www.census.gov/programs-surveys/qpc.html"> Census QPC </a>
- weeklyOpHoursHigh_q2
    - dtype: float
    - description: >
         upper bound of 95% confidence interval for average weekly operating hours second quarter.
         Calculated using reported data.
    - source: <a href="https://www.census.gov/programs-surveys/qpc.html"> Census QPC </a>
- weeklyOpHoursHigh_q3     
    - dtype: float    
    - description: >
         upper bound of 95% confidence interval for average 
         weekly operating hours third quarter. Calculated using reported data.
    - source: <a href="https://www.census.gov/programs-surveys/qpc.html"> Census QPC </a>
- weeklyOpHoursHigh_q4
    - dtype: float
    - description: >
         upper bound of 95% confidence interval for average 
         weekly operating hours fourth quarter. Calculated using reported data.
    - source: <a href="https://www.census.gov/programs-surveys/qpc.html"> Census QPC </a>
...