Name: Robert A. Greco

Title: Manager, Air Quality Company: We Energies Sign Date: 6/30/2010 Name: Scott W. Banach Title: Director, Project Engineering Company:Platt Environmental Services, Inc. Sign Date: 6/30/2010 Permitted Facility Representative / Date Testing Company Representative / Date Final Test Report for

/ / Based on information and belief formed after reasonable inquiry, I certify that the statements and information in this test report are true, accurate, and complete. I have reviewed all testing details and results in this test report and hereby certify that the test report is authentic and accurate.

Monday, February 07, 2011 Page 1 of 96/30/2010

Facility Information: Pleasant Prairie (ORIS Facility ID #6170) 8000 95th Street

Pleasant Prairie WI53158 Contact:Robert A. Greco Phone:(414) 221-5441 Fax: (414) 221-2022 Email:bob.greco@we-energies.com Testing Company: Platt Environmental Services, Inc. 1520 Kensington Road, Suite 204

Oak Brook IL60523 Contact:Scott W. Banach Phone:(630) 521-9400 Fax: (630) 521-9494 Email:sbanach@plattenv.com

Air Permit Number: 6170 Permitted Source ID/Name: Pleasant Prairie 2 Permitted Maximum Process Rate: N/A Max. Normal Operation Process Rate: N/A Target Process Test Rate N/A

Description of the source (including control equipment). Please see the attachments for source or process flow diagram: Pleasant Prairie Power Plant is a steam electric generating plant. The plant includes two identical side by side pulverized sub-bituminous coal fired steam electric generating units (B20 and B21). Each of two fossil fuel fired steam electric generating units consists of a boiler, turbine, and electric generator. Each is a natural circulation Riley Stoker Corporation type, integral superheater and reheater, single drum radiant heat boiler. The furnace is a Riley Turbo design constructed for balanced draft operation. The main fuel supply is pulverized coal with natural gas or fuel oil igniters used for coal flame stabilization during start-up and shutdown operations. Majority of emissions are controlled by selective catalytic reduction (SCR) system, electrostatic precipitator (ESP), and flue gas desulfurization (FGD) system.

The following describes any modifications and/or deviations to the applicable test methods. If alternative methods were requested, see the attachments for documentation of request AND approval, including dates. Industry/SCC/NAIS221112

Sampling Location Information:

Test Parameter Information: AFS #:5505960002 FRS #:20847

SCC / Description10100222 External Combustion Boilers - Electric Generation - Bituminous/Subbituminous Coal - Pulverized Coal: Dry Bottom (Subbituminous Coal)
The following state and federal regulations that apply to the proposed testing:

Location Round

Duct Diam. Distance from upstream dist. Distance from

downstream dist. Number of

Traverse Ports Equiv. Diam Min.Travers Points Rect. Duct Length /Width Stack Exit 192 1158 2627.75 4 0 12 0 0

Target Parameter Test Method Number of

Test RunsTest Run

DurationSample

Points Comments LocationHydrogen Fluoride Method 26A 3 180 0 Stack Exit Hydrogen Chloride Method 26A 3 180 0 Stack Exit

Monday, February 07, 2011 Page 2 of 96/30/2010

The following describes any modifications and/or deviations to the applicable test methods. If alternative methods were requested, see the attachments for documentation of request AND approval, including dates. All methods described in the EU MACT ICR were used.

Monday, February 07, 2011 Page 3 of 96/30/2010

Sampling / Stack Data Results Summary LocationStack Exit - Method 26A Average Run Number M26A-1 M26A-2 M26A-3 Test Date 4/14/20104/15/2010 4/15/2010 Run Start Time 11:35:00 AM 7:25:00 AM10:55:00 AM

Run Finish Time 2:48:00 PM 10:38:00 AM2:13:00 PM
Net Run Time, minutes 180 180 180 Dry Gas Meter Volume Sampled, dscf 149.791 149.587 145.993 148.457 Moisture Content of Stack Gas, % 16.37 14.95 16.66 15.993 Moisture Saturation at Stack Gas Temperature, % 15.87 15.64 15.54 15.683 Carbon Dioxide, % 13.3 12.9 12.9 13.033 Oxygen, % 5.7 6.1 6.1 5.967 Average Stack Gas Temperature, °F 130.81 130.25 130.00 130.353 Dry Volumetric Flow Rate, dry scfm 556,175.1 565,555.9 553,185.5558,305.500 Actual Wet Volumetric Flue Gas Flow Rate, acfm 761,100.1 764,839.8 753,017.4759,652.433 Percent Isokinetic of Sampling Rate, % 102.5 100.6 100.4 101.167 F-Factor, dscfm/MMBtu @ %O2 9820 9820 9820 9,820.000 Fw 0 0 0 0.000 Fc 1840 1840 1840 1,840.000

Monday, February 07, 2011 Page 4 of 96/30/2010

Emissions Summary

Process Run Data Location: Stack Exit - Method 26A Compound:Hydrogen Chloride Average RunNumber M26A-1 M26A-2 M26A-3 Mass_mg 0.49 0.51 0.39 0.463 Elb/hr 2.41E-01 2.55E-01 1.95E-01 0.230 lb/mmBtuO2 9.74E-05 1.04E-04 8.17E-05 0.000 mg/dscm 1.16E-01 1.20E-01 9.44E-02 0.110 mg/dscm@7%O2 1.06E-01 1.13E-01 8.87E-02 0.103 Compound:Hydrogen Fluoride Average RunNumber M26A-1 M26A-2 M26A-3 Mass_mg 0.35 0.4 0.37 0.373 Elb/hr 1.72E-01 2.00E-01 1.85E-01 0.186 lb/mmBtuO2 6.96E-05 8.18E-05 7.75E-05 0.000 mg/dscm 8.25E-02 9.44E-02 8.95E-02 0.089 mg/dscm@7%O2 7.54E-02 8.87E-02 8.41E-02 0.083

Monday, February 07, 2011 Page 5 of 96/30/2010

Process Run Data

Run Name Value UOM Comments Target Value 1 Subbituminous Coal Burned 384.61000 Tons/hr 0 2 Subbituminous Coal Burned 385.131000 Tons/hr 0 3 Subbituminous Coal Burned 371.731000 Tons/hr 0 1 Average Heat Input 6842.7MMBtu/hr 0 2 Average Heat Input 6778.8MMBtu/hr 0 3 Average Heat Input 6856.8MMBtu/hr 0 1 Steam Output 4308.01000 lb steam/hr 0 2 Steam Output 4267.51000 lb steam/hr 0 3 Steam Output 4280.71000 lb steam/hr 0 1 Synfuel Firing Rate 0 1000 Tons/hr 0 2 Synfuel Firing Rate 0 1000 Tons/hr 0 3 Synfuel Firing Rate 0 1000 Tons/hr 0 1 Petroleum Coke Firing Rate 0 1000 Tons/hr 0 2Petroleum Coke Firing Rate 0 1000 Tons/hr 0 3 Petroleum Coke Firing Rate 0 1000 Tons/hr 0 1 Coal Gas Firing Rate 0 Ft^3/min 0 2 Coal Gas Firing Rate 0 Ft^3/min 0 3 Coal Gas Firing Rate 0 Ft^3/min 0 1 Fuel Oil Firing Rate 0 gal/hr 0 2 Fuel Oil Firing Rate 0 gal/hr 0 3 Fuel Oil Firing Rate 0 gal/hr 0 1 Flue Gas Flow Rate 2E+06 DSCFM 0 1 Pressure Drop Across FGD (if applicable) 6.35 in H20 0 1 FGD Scrubber Liquor pH 0 pH 0 1 FGD Scrubber Liquor Flow Rate 278.62 gal/min 0 1 Sorbent Type and Sorbent Injection Rate (if applicable) 19190 lb/hr 0

1 Flue Gas Oxygen Content 1.869 % 0 1 Flue Gas Carbon Dioxide Content 11.988 % 0 1 Flue Gas Moisture Content % 0 1 Flue Gas Sampling Point Temperature 134.98 Deg F 0 1 Flue Gas Pressure 0.016 atm 0 1 Standard Pressure 1 atm 0 1 Standard Temperature 63.33 Deg F 0 Monday, February 07, 2011 Page 6 of 96/30/2010

APCD Run Data

Process Lab Run Data 1 Unit Gross Electrical Output 642.27 Mwe 0 1 Unit Net Electric Generation 591.66 MWh 0

Run Name Value UOM Comments Target Value 1 SCR (SELECTIVE CATALYTIC REDUCTION) 0.059 lb/mmBtu 0.1 2 SCR (SELECTIVE CATALYTIC REDUCTION) 0.063 lb/mmBtu 0.1 3 SCR (SELECTIVE CATALYTIC REDUCTION) 0.062 lb/mmBtu 0.1 1 ELECTROSTATIC PRECIPITATOR 0.007 lb/mmBtu 0.03 2 ELECTROSTATIC PRECIPITATOR 0.01 lb/mmBtu 0.03 3 ELECTROSTATIC PRECIPITATOR 0.007 lb/mmBtu 0.03 1 FGD 0.035 lb/mmBtu 0.1 2 FGD 0.035 lb/mmBtu 0.1 3 FGD 0.034 lb/mmBtu 0.1

Run Name ValueUOM Comments 1 Fuel Higher Heating Value 12002Btu/lb 1 Fuel Moisture 23.01 % 1 Fuel Mercury Content 0.11 ppm 1 Fuel Cadmium Content 0.084 ppm 1 Ultimate/Proximate Analysis 0 1 Fuel Nickel Content 12 ppm 1 Fuel Arsenic Content 0.94 ppm 1 Fuel Chromium Content 5 ppm 1 Fuel Beryllium Content 0.29 ppm 1 Fuel Lead Content 2.9 ppm 1 Fuel Manganese Content 16 ppm 1 Fuel Chlorine Content 36 ppm 1 Fuel Fluorine Content 90 ppm 2 Fuel Higher Heating Value 12025Btu/lb 2 Fuel Moisture 22.56 % 2 Fuel Mercury Content 0.078 ppm 2 Fuel Cadmium Content 0.08 ppm 2 Ultimate/Proximate Analysis 0 2 Fuel Nickel Content 6.7 ppm 2 Fuel Arsenic Content 1 ppm 2 Fuel Chromium Content 4.6 ppm 2 Fuel Beryllium Content 0.25 ppm

Monday, February 07, 2011 Page 7 of 96/30/2010

2 Fuel Lead Content 3.2 ppm 2 Fuel Manganese Content 19 ppm 2 Fuel Chlorine Content 35 ppm 2 Fuel Fluorine Content 87 ppm 3 Fuel Higher Heating Value 12073Btu/lb 3 Fuel Moisture 20.46 % 3 Fuel Mercury Content 0.076 ppm 3 Fuel Cadmium Content 0.11 ppm 3 Ultimate/Proximate Analysis 0 3 Fuel Nickel Content 4.4 ppm 3 Fuel Arsenic Content 1.1 ppm 3 Fuel Chromium Content 5.2 ppm 3 Fuel Beryllium Content 0.25 ppm 3 Fuel Lead Content 2.7 ppm 3 Fuel Manganese Content 23 ppm 3 Fuel Chlorine Content 37 ppm 3 Fuel Fluorine Content 84 ppm

Monday, February 07, 2011 Page 8 of 96/30/2010

Sampling / Stack Data Results Detail LocationStack Exit - Method 26A Average Run Number M26A-1 M26A-2 M26A-3 Test Date 4/14/2010 4/15/2010 4/15/2010 Run Start Time 11:35:00 AM7:25:00 AM10:55:00 AM Run Finish Time 2:48:00 PM10:38:00 AM2:13:00 PM Net Traversing Points 40 40 40 Net Run Time, minutes 180 180 180 Nozzle Diameter, inches 0.232 0.232 0.232 0.232 Pitot Tube Coefficient 0.84 0.84 0.84 0.840 Dry Gas Meter Calibration Factor 0.997 0.997 0.997 0.997 Barometric Pressure, inches of Mercury 29.15 29.15 29.15 29.150 Average Orifice Meter Differential, inches H2O 2.02 2.05 2.00 2.023 Dry Gas Meter Volume Sampled, cubic feet 160.368 161.211 157.980 159.853 Average Dry Gas Meter Temperature, °F 91.88 95.58 97.78 95.080 Dry Gas Meter Volume Sampled, dscf 149.791 149.587 145.993 148.457 Total Moisture Liquid collected, g 623.1 558.5 619.9 600.500 Volume of Water Vapor, standard cubic feet 29.33 26.29 29.18 28.267 Moisture Content of Stack Gas, % 16.37 14.95 16.66 15.993 Moisture Saturation at Stack Gas Temperature, % 15.87 15.64 15.54 15.683 Dry Mole Fraction 0.8413 0.8505 0.8446 0.845 Carbon Dioxide, % 13.3 12.9 12.9 13.033 Oxygen, % 5.7 6.1 6.1 5.967 Carbon Monoxide & Nitrogen, % 81 81 81 81.000 Fuel Factor 1.14 1.15 1.15 Dry Molecular Weight, lb/lb-Mole 30.36 30.31 30.31 30.327 Wet Molecular weight, lb/lb-Mole 28.49 28.47 28.60 28.520 Flue Gas Static Pressure, inches of H2O -1 -1 -1 -1.000 Absolute Flue Gas Pressure, inches of Mercury 29.08 29.08 29.08 29.080 Average Stack Gas Temperature, °F 130.81 130.25 130.00 130.353 Average Velocity Head, inches of H2O 1.0823190486 45351.093183376

364611.065082818

39623 1.080 Average Stack Gas Velocity, feet/second 63.09 63.40 62.42 62.970 Stack Cross-Sectional Area, square feet 201.062 201.062 201.062 201.062 Dry Volumetric Flow Rate, dry scfm 556,175.1 565,555.9 553,185.5558,305.500 Actual Wet Volumetric Flue Gas Flow Rate, acfm 761,100.1 764,839.8 753,017.4759,652.433 Percent Isokinetic of Sampling Rate, % 102.5 100.6 100.4 101.167 Percent Excess Air, % 36.3 39.9 39.9 38.700 F-Factor, dscfm/MMBtu @ %O2 9820 9820 98209,820.000 Round Duct Diameter, inches 192 192 192 Rectangular Duct Width, inches 0 0 0 Rectangular Duct Length, inches 0 0 0 Fw 0 0 0 0.000 Fc 1840 1840 18401,840.000

Monday, February 07, 2011 Page 9 of 9