Facility_Information

facility_id utility_codelegal_owner_nam legl_operator_name e legal_address_ty legal_address pe legal_city legal_state legal_zip

7504 19545 Black Hills Power, Inc Black Hills Power, Inc operator P O Box 1400Rapid City SD 57709-1400

55479 19545 Black Hills WBlack Hills Power, Inc yoming, Incoperator P O Box 1400Rapid City SD 57709-1400

56319 3461 Cheyenne Light, Fuel & Power Black Hills Power, Inc operator P O Box 1400Rapid City SD 57709-1400

Page 1
Facility_Information

plant_namephysical_address phyical_cityphysical_statephysical_zipmailing_address mailing_citymailing_statemailing_zip

Neil Simpson II 13151 Hwy 51Gillette WY 82716 13151 Hwy 51Gillette WY 82716

Wygen 1 13151 Hwy 51Gillette WY 82718 13151 Hwy 51Gillette WY 82718

Wygen 2 20 Wyodak Road Gillette WY 72718 20 Wyodak Road Gillette WY 72718

Page 2
Facility_Information

RFA_small_entity ff_fired_coalff_fired_oil ff_fired_ngasff_fired_petcoke ff_fired_other ff_permitted_coal ff_permitted_oil ff_permitted_ngas

Don't Know TRUE FALSE FALSE FALSE FALSE TRUE FALSE FALSE

Don't Know TRUE FALSE FALSE FALSE FALSE TRUE FALSE FALSE

Don't Know TRUE FALSE FALSE FALSE FALSE TRUE FALSE FALSE

Page 3
Facility_Information

ff_permitted_petcoke ff_permitted_other deviation_reporting continuous_emissions cem_providedfacility_note

FALSE FALSE There is not steam reheat cycle on this design.

FALSE FALSE No steam reheat on this design.

FALSE FALSE WYGEN II began operation in 1/2008. 3 years of history is not availab

Page 4
Facility_Information

on this design.

2008. 3 years of history is not available.

Page 5
facility_contacts

facility_id contact_id contact_titlecontact_namecontact_phone1 contact_phone2 contact_email contact_primary

7504 1 Environmental Sy Tim Mordhorst stems Manager 6057212181 tim.mordhorst@blackhillscorp.com TRUE

55479 2 Enviromental Sy Tim Mordhorst stems Manager 6057212181 tim.mordhorst@blackhillscorp.com TRUE

56319 3 Environmental Sy Tim Mordhorst stems Manager 6057212181 tim.mordhorst@blackhillscorp.com TRUE

Page 6
facility_coal_utilized

facility_id coal_type percentage_mass percentage_btu synfuel_typecoal_note

7504 subbituminous 100 100

55479 subbituminous 100 100

56319 subbituminous 100 100

Page 7
facility_oil_utilized

facility_id oil_type percentage_volume percentage_btu other_type

Page 8
facility_other_materials

facility_id other_material permitted_burn actually_burnother_quantity other_quantity other_note _units rcra_utilize rcra_explain

Page 9
facility_other_materials

rcra_explain

Page 10
boiler_information

facility_id boiler_id boiler_type boiler_otherbottom_design design_fuelheat_input max_heat_input MWe_capacity

7504 2 Wall firing - front firing Dry Bottomcoal 1300 1100 88

55479 3 Wall firing - front firing Dry Bottomcoal 1300 1053 91

56319 0001 Wall firing - front firing Dry Bottomcoal 1300 1300 96

Page 11
boiler_information

MWe_net_capacity design_gross_efficiency operating_gross_efficiency design_pressure operating_pressure design_tempoperating_temp design_reheat_multiple design_reheat_temp1

80 33 30 1620 1550 1005 970 FALSE 0

83 33 30 1620 1550 1005 970 FALSE 0

89 33 30 1620 1602 1005 970 FALSE 0

Page 12
boiler_information

design_reheat_temp2 operating_reheat_multiple operating_reheat_temp1 operating_reheat_temp2 hours_operatedvg_capacityapplicable_NSPS _factor retirement_yretirement_y ear ear_CBI

FALSE 0 8650 100 Subpart Da(1) FALSE

FALSE 0 8575 100 Subpart Da(1) FALSE

FALSE 0 8700 97.4 Subpart Da(2) FALSE

Page 13
boiler_information

NOx_controlSO2_controlcombustion_additives

Yes Yes No

Yes Yes No

Yes Yes No

Page 14
boiler_fuels

facility_id boiler_id fuel_type fuel_year percentage_massvol percentage_btu other_type

7504 2 coal - subbituminous 2007 100 100

7504 2 coal - subbituminous 2008 100 100

7504 2 coal - subbituminous 2009 100 100

55479 3 coal - subbituminous 2007 100 100

55479 3 coal - subbituminous 2008 100 100

55479 3 coal - subbituminous 2009 100 100

56319 0001 coal - subbituminous 2007 100 100

56319 0001 coal - subbituminous 2008 100 100

56319 0001 coal - subbituminous 2009 100 100

Page 15
boiler_control_NOx

facility_id boiler_id NOx_type NOx_other NOx_online

7504 2 Low NOx Burner 9/1/1995

7504 2 Overfire Air 9/1/1995

55479 3 Low NOx Burner 5/1/2003

55479 3 Overfire Air 5/1/2003

56319 0001 Low NOx Burner 1/1/2008

56319 0001 Overfire Air 1/1/2008

Page 16
boiler_control_SO2

facility_id boiler_id SO2_type SO2_other SO2_online

7504 2 Low Sulfur Coal 9/1/1995

55479 3 Low Sulfur Coal 5/1/2003

56319 0001 Low Sulfur Coal 1/1/2008

Page 17
boiler_additives

facility_id boiler_id boiler_additive additive_other additive_online

Page 18
facility_units

facility_id unit_id

7504 001

55479 001

56319 001

Page 19
unit_boilers

facility_id unit_id boiler_id

7504 001 2

55479 001 3

56319 001 0001

Page 20
facility_controls

facility_id control_id control_groupcontrol_typecontrol_otherlegacy_control cntrol_onlinecontrol_offlineNOx_reagent

7504 PCP1 PM control Electrostatic precipitator, cold side, w/o flue gas conditioning FALSE 9/1/1995

7504 SCB1 SO2 controlCirculating Dry ScrubberFALSE 9/1/1995

55479 BGH1 PM control Fabric Filter, pulse FALSE 4/1/2003

55479 SCR1 NOx controlSelective Catalytic Reduction FALSE 4/1/2003 Ammonia

55479 SDA1 SO2 controlSpray dryer type FALSE 4/1/2003

56319 BGH1 PM control Fabric Filter, pulse FALSE 1/1/2008

56319 SCR1 NOx controlSelective Catalytic Reduction FALSE 1/1/2008 Ammonia

56319 SDA1 SO2 controlSpray dryer type FALSE 1/1/2008

Page 21
facility_controls

reagent_other NOx_ammonia SO2_sorbent oher_sorbent SO2_scrubber_additive

Lime and alkaline fly ashNo

100

Lime and alkaline fly ashNo

100

Lime and alkaline fly ashNo

Page 22
facility_sampling_ports

facility_id sampling_port_id

7504 SP

55479 SP

56319 SP

Page 23
facility_stacks

facility_id stack_id stack_heightstack_diameter sack_gas_velocity

7504 Stk1 295 9.25

55479 STK1 295 9.25

56319 STK1 495 10.25

Page 24
configurations

facility_id configuration_id

7504 NS2Cfg

55479 WYG1Cfg

56319 WYG2Cfg

Page 25
configuration_components

facility_id configuration_id component_idorder component_ty port_near pe

7504 NS2Cfg 001 1 Unit

7504 NS2Cfg PCP1 3 PM control

7504 NS2Cfg SCB1 2 SO2 control

7504 NS2Cfg SP 4 Sampling Port next

7504 NS2Cfg Stk1 5 Stack

55479 WYG1Cfg 001 1 Unit

55479 WYG1Cfg BGH1 4 PM control

55479 WYG1Cfg SCR1 2 NOx control

55479 WYG1Cfg SDA1 3 SO2 control

55479 WYG1Cfg SP 5 Sampling Port next

55479 WYG1Cfg STK1 6 Stack

56319 WYG2Cfg 001 1 Unit

56319 WYG2Cfg BGH1 4 PM control

56319 WYG2Cfg SCR1 2 NOx control

56319 WYG2Cfg SDA1 3 SO2 control

56319 WYG2Cfg SP 5 Sampling Port next

56319 WYG2Cfg STK1 6 Stack

Page 26
configuration_pollutants1

facility_id configuration_id pollutant_nampermit_ty e pe_1emlimit_1 emlimit_units_1 avg_period_1emlimit_2 emlimit_units_2

7504 NS2Cfg PM (Filterable) Fderal - Title V Operating Permit 0.02 pound per million British Thermal Unit (lb/MMBtu) 1 hour 20 pound per hour (lb/hr)

7504 NS2Cfg Nitrogen Oxide (NOx) Federal - Title V Operating Permit 0.23 pound per million British Thermal Unit (lb/MMBtu) 30 days 299 pound per hour (lb/hr)

7504 NS2Cfg Sulfur Dioxide (SO2) Federal - Title V Operating Permit 0.17 pound per million British Thermal Unit (lb/MMBtu) 30 days 0.2 pound per million British Thermal U

55479 WYG1Cfg Sulfur Dioxide (SO2) Federal - Title V Operating Permit 0.17 pound per million British Thermal Unit (lb/MMBtu) 30 days 172.4 pound per hour (lb/hr)

55479 WYG1Cfg Nitrogen Oxide (NOx) Federal - Title V Operating Permit 0.0016 pound per Gigawatt hour (lb/GW 30 days h)

55479 WYG1Cfg PM (Filterable) Fderal - Title V Operating Permit 0.02 pound per million British Thermal Unit (lb/MMBtu) 3 hours

56319 WYG2Cfg PM (Filterable) State - State Operating Permit 0.012 pound per million British Thermal Unit (lb/MMBtu) 3 hours

56319 WYG2Cfg Sulfur Dioxide (SO2) State - State Operating Permit 0.1 pound per million British Thermal Unit (lb/MMBtu) 30 days 15.6 pound per hour (lb/hr)

56319 WYG2Cfg Nitrogen Oxide (NOx) State - State Operating Permit 0.07 pound per million British Thermal Unit (lb/MMBtu) 30 days 91 pound per hour (lb/hr)

56319 WYG2Cfg Carbon Monoxide (CO) State - State Operating Permit 0.015 pound per million British Thermal Unit (lb/MMBtu) 3 hours 195 pound per hour (lb/hr)

56319 WYG2Cfg VOCs State - State Operating Permit 0.01 pound per million British Thermal Unit (lb/MMBtu) 3 hours 13 pound per hour (lb/hr)

56319 WYG2Cfg Total MercuryState - State Operating Permit (Hgt) 9.7E-08 pound per Gigawatt hour (lb/GW 30 days h)

Page 27
configuration_pollutants1

avg_period_2emlimit_3 emlimit_units_3 avg_period_3emlimit_4 emlimit_units_4 avg_period_4emlimit_details test_method

1 hour

30 days

3 hours

30 days 0.2 pound per million British Thermal Unit (lb/MMBtu) 3 hours

5

5

3 hours 0.0014 pound per Gigawatt hour (lb/GW 30 days h)

30 days 0.001 pound per Gigawatt hour (lb/GW 30 days h)

3 hours

3 hours

Page 28
configuration_pollutants1

emrate emrate_unitsguarantee_level_explainreq_monitoringeq_recordkeeping req_reporting

0.02 pound per million British Thermal Unit (lb/MMBtu) No annual stack test Yes Annual

0.23 pound per million British Thermal Unit (lb/MMBtu) No CEMS Yes Qtr

0.17 pound per million British Thermal Unit (lb/MMBtu) No CEMS Yes Qtr

0.17 pound per million British Thermal Unit (lb/MMBtu) No CEM hourly Qtr

0.0016 pound per Gigawatt hour (lb/GW No h)CEM hourly Qtr

0.02 pound per million British Thermal Unit (lb/MMBtu) No COM Annual stack test annual

0.012 pound per million British Thermal Unit (lb/MMBtu) No COMs 6min qtr

0.1 pound per million British Thermal Unit (lb/MMBtu) No CEMS hourly qtr

0.07 pound per million British Thermal Unit (lb/MMBtu) No CEMS hourly qtr

0.15 pound per million British Thermal Unit (lb/MMBtu) No No No No

0.01 pound per million British Thermal Unit (lb/MMBtu) No No No No

9.7E-08 pound per Gigawatt hour (lb/GW No h)CEMS hourly qtr

Page 29
control_technologies

facility_id configuration_id component_idcontrol_id project_titleproject_typevendor_namevndor_contact vendor_phone

Page 30
control_technologies

vendor_address vndor_cityvendor_statevendor_zip actual_start_date projected_start_date end_date sorbent chemical_additive

Page 31
control_technologies

injection_point HAP_emission_reduction HAP_emission_rate HAP_emission_rate_units HAP_achieved_reduction HAP_achieved_rate HAP_achieved_rate_units feed_rate feed_rate_units

Page 32
control_technologies

feed_rate_units

Page 33
control_coal_ranks

facility_id configuration_id component_idcontrol_id coal_type

Page 34
control_pollutants1

facility_id configuration_id component_idcontrol_id pollutant_name

Page 35
control_costs

facility_id configuration_id component_idcontrol_id boiler_retrofit boiler_new_install total_capital_investm total_operating_costs entbase_year

Page 36
control_costs

CBI

Page 37
misc_controls

facility_id misc_control_id control_description

Page 38
misc_control_configurations

facility_id misc_control_id configuration_id

Page 39
fuel_shipments

facility_id shipment_idshipment_date amount_received amount_unitsfuel_type state_countryother_countrycounty

Page 40
fuel_shipments

coal_seam shipment_method

Page 41
fuel_shipment_configurations

facility_id shipment_idconfiguration_id

Page 42
fuel_shipment_samples

facility_id shipment_idsample_id amount_fuelamount_fuel_units total_sulfur ash_contentheating_valuehating_units

Page 43
fuel_shipment_samples

chlorine chlorine_unitsfluorine fluorine_unitsdata_provideddata_other_specified supplier_typesupplier_name supplier_address

Page 44
fuel_shipment_samples

supplier_citysupplier_statesupplier_ziplab_name lab_addresslab_city lab_state lab_zip analysis_copies

Page 45
fuel_shipment_samples

analysis_copies

Page 46
fuel_sample_pollutants

facility_id shipment_idsample_id fuel_pollutant pollutant_conc pollutant_conc_units pollutant_conc_ND pollutant_conc_MDL

Page 47
test_reports

facility_id report_id report_typeother_type report_description report_begin_date report_end_date before_control during_deviation

Page 48
test_reports

deviation_reports

Page 49
test_report_configurations

facility_id report_id configuration_id

Page 50
test_report_fuels

facility_id report_id fuel_id

Page 51
test_report_fuel_types

facility_id report_id fuel_id fuel_type percentage_massvol percentage_btu other_type

Page 52
cem_data

facility_id time_periodcem_period_description

Page 53
cem_data_pollutants1

facility_id time_periodpollutant_name

Page 54
test_report_sampling

facility_id report_id sampling_port_id point_differpoint_description befre_SO2_device point_orientation normal_bypass_percent testing_bypass_percent

Page 55
test_report_sampling

fg_fraction

Page 56
sampling_runs

facility_id report_id sampling_port_id run_id start_datetime end_datetimunit_load e net_generation fg_moisture_content

Page 57
sampling_runs

fg_flow_ratefg_flow_rate_units standard_temperature standard_pressure normal_temperature normal_pressure fg_oxygen_content fg_CO2_content fg_temperature

Page 58
sampling_runs

fg_pressureHg_loi test_methodrun_comments fuel_id fuel_unit_loadfuel_flow_ratefuel_ash fuel_heating_value

Page 59
sampling_runs

fuel_sulfur

Page 60
sampling_run_pollutants1

facility_id report_id sampling_port_id run_id pollutant_namconce conc_units conc_ND conc_MDL

Page 61
sampling_run_pollutants1

emission_rateemission_rate_units emission_rate_ND emission_rate_MDL emission_factor emission_factor_units emission_factor_ND emission_factor_MDL run_pollutant_comment

Page 62
sampling_run_pollutants1

run_pollutant_comment

Page 63
sampling_run_fuel

facility_id report_id sampling_port_id run_id fuel_pollutant fuel_conc fuel_conc_units fuel_conc_NDfuel_conc_MDL

Page 64
sampling_run_fuel

fuel_conc_MDL

Page 65