application for a permit to construct and operate ... · appendix r4 portable crushing plant ......

$: Application for a Permit to Construct and Operate ... · Appendix R4 Portable Crushing Plant ... R-Permit Attachments\Appendix R4 Portable Crushin Plant\APP R4 Crusher ... Stone Processing$
Appendix R

Proposed Permit Attachments

Appendix R1 Re-Modeling Requirements (not submitted as part of v2)

Appendix R2 Emergency Engine Best Management Practices

Appendix R3 Space Heater Heat Inputs

Appendix R4 Portable Crushing Plant Emission Calculations

Appendix R5 Mine Fleet Mobile Source Calculations (not submitted as part of v2)

Appendix R6 Tailings Basin Construction Vehicle Calculations (not submitted as

part of v2)

Appendix R7 Tailings Basin Construction Equipment Tailpipe Emission

Calculations (not submitted as part of v2)

Appendix R8 Mobile Source Calculations

aq5-35w

Appendix R1

Re-Modeling Requirements

(not submitted as part of v2)

Appendix R2

Emergency Engine Best Management Practices

NorthMet Project – Air Permit Application Appendix R2

Proposed Air Permit Appendix R2

Emergency Engine Best Management Practices

August 1, 2016

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practice v1 d4.docx 1

The Permittee shall observe the following best management practices for emergency engines (generators

and fire pumps) that were excluded from the air dispersion modeling conducted to demonstrate

compliance with Minnesota or federal ambient air quality standards or PSD increments.

Best Management Practices for emergency engines include:

1. Fuel type: only use ultra-low-sulfur diesel fuel

2. If possible, defer testing if forecast Air Quality Index (AQI) > 90

3. If possible, avoid concurrent engine functionality tests and stack tests

4. Minimize the frequency of engine functionality tests by having a test plan

5. Minimize the duration of engine functionality tests by operating the engine for no more time than

required to complete the test and check for engine functionality

6. Optimize generator stack testing, including:

a. Startup the engine no more than one shift prior to the stack test

b. Shutdown the engine upon completion of the stack test

7. During all engine functionality tests and stack tests, record the following information:

a. The date

b. The day of the week

c. The time the test started

d. The time the test was completed

e. The AQI for the Ely station from the MPCA website

Appendix R3

Space Heater Heat Inputs

NorthMet Project Air Permit Application Appendix R3


Space Heater Details by Building

January 2018

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Table R3-1 Space Heater Details by Building v2 d2.docx 1

Building

Proposed Space

Heater Source IDs

Total Heat Input

(MMBtu/hr)

Potential

Emissions (lb/hr)

Fine Crusher Building Space Heating EQUI 228-247 10.83 0.516

Concentrator Building Space Heating EQUI 248-287 36.95 1.759

Hydromet Building Space Heating EQUI 288-307 7.84 0.373

Reagent Building Space Heating EQUI 308-327 2.42 0.115

Limestone Preparation Building Space Heating EQUI 328-347 4.85 0.231

Coarse Crusher Building Space Heating EQUI 348-377 10.48 0.499

Drive House Space Heating EQUI 378-397 1.72 0.082

Flotation Addition Space Heating EQUI 398-417 3.59 0.171

Concentrate Dewatering Building Space Heating EQUI 418-437 1.06 0.051

Concentrate Loadout Building Space Heating EQUI 438-457 0.41 0.019

Rebuild Shop Space Heating EQUI 458-477 8.27 0.394

Main Warehouse Space Heating EQUI 478-497 3.11 0.148

General Shops Space Heating EQUI 498-537 34.94 1.664

Warehouse Electrical Space Heating EQUI 538-557 2.53 0.121

WWTS Space Heating EQUI 198-227 16.6 0.790

Rubber Shop Space Heating EQUI 558-577 0.5 0.024

Lube House Space Heating EQUI 578-597 0.17 0.008

Total 146.3 7.0

Appendix R4

Portable Crushing Plant Emission Calculations



Portable Crushing Plant Emission Calculations

January 2018

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Configuration Assumed for Emission Inventory (i.e. modeled emission rates)

Source ID (1) Type

Maximum

Throughput

(tons/hour)

PM10

Emission

Factor

(lb/ton)

Hourly

PM10 PTE

(lb/hour)

PM2.5

Emission

Factor

(lb/ton)

Hourly

PM2.5 PTE

(lb/hour)

Crush 1 Crusher 300 0.00054 0.16 0.0001 0.03

Crush 2 Crusher 300 0.00054 0.16 0.0001 0.03

Screen 1 Screen 300 0.00074 0.22 0.00005 0.02

Screen 2 Screen 300 0.00074 0.22 0.00005 0.02

Transfer 1 Transfer 300 4.60E-05 0.01 1.30E-05 0.00






Truck Ld 1 Truck Loading 300 0.0033 0.99 0.0005 0.15

Total 1.81 0.25

(1) Source IDs from the MPCA TEMPO system will be added to this table after the air permit is issued

for the facility

Potential PM10 emissions from proposed portable crushing plant operations different from the above shall

be calculated by equation 1 below:

Equation 1

𝑃𝑀10 𝑒𝑚𝑖𝑠𝑠𝑖𝑜𝑛𝑠 (𝑙𝑏

ℎ𝑟) = 𝐶𝑟𝑢𝑠ℎ𝑒𝑟 𝑇ℎ𝑟𝑜𝑢𝑔ℎ𝑝𝑢𝑡 ∗ 0.00054 + 𝑆𝑐𝑟𝑒𝑒𝑛 𝑇ℎ𝑟𝑜𝑢𝑔ℎ𝑝𝑢𝑡 ∗ 0.00074 +

𝐶𝑜𝑛𝑣𝑒𝑦𝑜𝑟 𝑇𝑟𝑎𝑛𝑠𝑓𝑒𝑟 𝑇ℎ𝑟𝑜𝑢𝑔ℎ𝑝𝑢𝑡 ∗ 4.6 ∗ 10−5 + 𝑇𝑟𝑢𝑐𝑘 𝐿𝑜𝑎𝑑 𝑇ℎ𝑟𝑜𝑢𝑔ℎ𝑝𝑢𝑡 ∗ 0.0033

where:

Crusher Throughput = Crusher 1 Throughput + Crusher 2 Throughput ... + Crusher n Throughput

(tons/hour)

0.00054 = emission factor for a crusher with water sprays (lbs/ton) taken from AP-42 Table

11.19.2-2 (8/2004), Emission Factors for Crushed Stone Processing Operations; Tertiary Crushing

(controlled).

Screen Throughput = Screen 1 Throughput + Screen 2 Throughput + … Screen n Throughput

(tons/hour)

2

0.00074 = emission factor for a screener with water sprays (lbs/ton) taken from AP-42 Table

11.19.2-2 (8/2004), Emission Factors for Crushed Stone Processing Operations; Screening

(controlled).

Conveyor Transfer Throughput = Conveyor Transfer 1 Throughput + Conveyor Transfer 2

Throughput +… Conveyor Transfer 3 Throughput (tons/hour)

4.6 * 10-5 = emission factor for a conveyor transfer point with water sprays (lbs/ton) taken from

AP-42 Table 11.19.2-2, Emission Factors for Crushed Stone Processing Operations; Conveyor

Transfer Point (controlled).

Truck Load Throughput = The total hourly production rate for products to be loaded into trucks

0.0033 = emission factor for truck loading (lbs/ton) calculated per AP-42: Compilation of Air

Pollutant Emission Factors, 5th Edn., November 2006, Page 13.2.4-3.AP-42.

Potential PM2.5 emissions from proposed portable crushing plant operations different from that in the

table above shall be calculated by equation 2 below:

Equation 2

𝑃𝑀2.5𝑒𝑚𝑖𝑠𝑠𝑖𝑜𝑛𝑠 (𝑙𝑏

ℎ𝑟) = 𝐶𝑟𝑢𝑠ℎ𝑒𝑟 𝑇ℎ𝑟𝑜𝑢𝑔ℎ𝑝𝑢𝑡 ∗ 0.0001 + 𝑆𝑐𝑟𝑒𝑒𝑛 𝑇ℎ𝑟𝑜𝑢𝑔ℎ𝑝𝑢𝑡 ∗ 0.00005 +

𝐶𝑜𝑛𝑣𝑒𝑦𝑜𝑟 𝑇𝑟𝑎𝑛𝑠𝑓𝑒𝑟 𝑇ℎ𝑟𝑜𝑢𝑔ℎ𝑝𝑢𝑡 ∗ 1.3 ∗ 10−5 + 𝑇𝑟𝑢𝑐𝑘 𝐿𝑜𝑎𝑑 𝑇ℎ𝑟𝑜𝑢𝑔ℎ𝑝𝑢𝑡 ∗ 0.0005

where:

Crusher Throughput = Crusher 1 Throughput + Crusher 2 Throughput ... + Crusher n Throughput

(tons/hour)

0.0001 = emission factor for a crusher with water sprays (lbs/ton) taken from AP-42 Table 11.19.2-

2 (8/2004), Emission Factors for Crushed Stone Processing Operations; Tertiary Crushing

(controlled).

Screen Throughput = Screen 1 Throughput + Screen 2 Throughput + … Screen n Throughput

(tons/hour)

0.00005 = emission factor for a screener with water sprays (lbs/ton) taken from AP-42 Table

11.19.2-2 (8/2004), Emission Factors for Crushed Stone Processing Operations; Screening

(controlled).

Conveyor Transfer Throughput = Conveyor Transfer 1 Throughput + Conveyor Transfer 2

Throughput +… Conveyor Transfer 3 Throughput (tons/hour)

1.3 * 10-5 = emission factor for a conveyor transfer point with water sprays taken from AP-42

Table 11.19.2-2, Emission Factors for Crushed Stone Processing Operations; Conveyor Transfer

Point (controlled).

Truck Load Throughput = The total hourly production rate for products to be loaded into trucks

0.0033 = emission factor for truck loading (lbs/ton) calculated per AP-42: Compilation of Air

Pollutant Emission Factors, 5th Edn., November 2006, Page 13.2.4-3.AP-42.

Appendix R5

Mine Fleet Mobile Source Calculations


Appendix R6

Tailings Basin Construction Vehicle Calculations


Appendix R7

Tailings Basin Construction Equipment Tailpipe Emission Calculations


Appendix R8

Mobile Source Calculations



Mobile Source Calculations

January 2018

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Assumptions made through modeling potential impacts to Class I visibility are enforced through the air

emission permit. The following calculation methodology is to be used to demonstrate compliance with

the proposed permit limits found in Appendix E to the Application for a Permit to Construct and Operate

for mobile sources. Limits apply to Mining Vehicles Tailpipe Emissions (COMG 66), Tailings Basin

Construction Vehicle Tailpipe Emissions (COMG 67) and Locomotives (COMG 65). Details are provided for

each source type in the sections below.

R8-1.0 Mining Vehicle Tailpipe Emissions

Two calculation methodologies may be used for calculating Mining Vehicle tailpipe emissions. The

primary calculation method uses tracked daily equipment specific fuel use. The secondary calculation

method uses tracked daily operating hours and site-specific fuel use factors. The primary calculation

method is to be used when direct fuel use data is available. When direct fuel use data is not available, the

secondary calculation method may be used.

The emission limits for Mining Vehicle Tailpipe Emissions in Appendix E are in pounds per day. Ideally, fuel

usage for each vehicle or group of vehicles will be tracked from midnight to midnight for each operating

day. This may not always be possible, so a procedure for adjusting the fuel usage recorded to the daily

fuel usage is also included in this appendix as Equation R8-8.

The total daily emissions are calculated by summing the daily NOX, SO2 and PM10 emissions for each

vehicle or group of vehicles with the same emission rating.

R8-1.1 Emission calculations when direct fuel use data is available

The daily NOX emission rate can be found using:

𝑬𝑹𝑵𝑶𝒙𝒅𝒂𝒚 (𝒍𝒃

𝒅𝒂𝒚) = 𝑬𝑭𝑵𝑶𝒙

(𝒈

𝒉𝒑−𝒉𝒓) × 𝑭𝑹𝒅𝒂𝒚 (

𝒈𝒂𝒍

𝒅𝒂𝒚) ÷ 𝟒𝟓𝟑. 𝟔 (

𝒈

𝒍𝒃) × 𝑫𝒇 (

𝒍𝒃

𝒈𝒂𝒍) ÷ 𝑩𝑺𝑭𝑪 (

𝒍𝒃

𝒉𝒑−𝒉𝒓) (Equation R8-1)

where:

𝐸𝑅𝑁𝑂𝑥𝑑𝑎𝑦 = daily NOX emission rate in lb/day

𝐸𝐹𝑁𝑂𝑥 = NOX emission factor in g/hp-hr found in Table R8-1 (value dependent on Tier 4

engine size)

𝐹𝑅𝑑𝑎𝑦 = daily fuel use rate in gal/day

𝐵𝑆𝐹𝐶 = Break specific fuel consumption in lb/hp-hr (0.367 lb/hp-hr From "Exhaust

Emissions Factors for Non-road Engine Modeling -- Compression Ignition")

𝐷𝑓 = Density of the fuel in lb/gal (7.1 lb/gal for diesel fuel From AP-42 Table 3.4-1

(10/96), footnote a)

The daily SO2 emission rate can be found using:

2

𝑬𝑹𝑺𝑶𝟐𝒅𝒂𝒚 (𝒍𝒃

𝒅𝒂𝒚) = 𝑬𝑭𝑺𝑶𝟐

(𝒍𝒃


𝒈𝒂𝒍

𝒅𝒂𝒚) × 𝑫𝒇 (

𝒍𝒃


𝒍𝒃


where:

𝐸𝑅𝑆𝑂2𝑑𝑎𝑦= daily SO2 emission rate in lb/day

𝐸𝐹𝑆𝑂2= SO2 emission factor in lb/hp-hr calculated by 0.00809 × 𝑆1 where 𝑆1=% sulfur in

fuel oil (the Permittee is limited to a maximum fuel sulfur content of 15 ppm or

0.0015% sulfur)

The daily PM10 emission rate can be found using:

𝐸𝑅𝑃𝑀10𝑑𝑎𝑦 (𝑙𝑏

𝑑𝑎𝑦) = 𝐸𝐹𝑃𝑀10

(𝑔

ℎ𝑝−ℎ𝑟) × 𝐹𝑅𝑑𝑎𝑦 (

𝑔𝑎𝑙

𝑑𝑎𝑦) ÷ 453.6 (

𝑔

𝑙𝑏) × 𝐷𝑓 (

𝑙𝑏

𝑔𝑎𝑙) ÷ 𝐵𝑆𝐹𝐶 (

𝑙𝑏

ℎ𝑝−ℎ𝑟) (Equation R8-3)

where:

𝐸𝑅𝑃𝑀10𝑑𝑎𝑦= daily PM10 emission rate in lb/day

𝐸𝐹𝑃𝑀10= PM10 emission factor in g/hp-hr found in Table R8-2 (value dependent on Tier 4

engine size)

R8-1.2 Emission calculations when direct fuel use data is unavailable


𝐸𝑅𝑁𝑂𝑥𝑑𝑎𝑦 (𝑙𝑏

𝑑𝑎𝑦) = 𝐸𝐹𝑁𝑂𝑥

(𝑔

ℎ𝑝−ℎ𝑟) × 𝐹𝑅𝑠𝑠 (

𝑔𝑎𝑙

ℎ𝑟) × 𝑡𝑑𝑎𝑦 (

ℎ𝑟

𝑑𝑎𝑦) ÷ 453.6 (

𝑔


𝑙𝑏


𝑙𝑏


where:

𝐹𝑅𝑠𝑠 = site-specific fuel use rate in gal/hr found in Table R8-3 (value dependent on

vehicle make/model and use characteristics). If no site specific fuel use rate is

available in Table R8-3 for a particular make/model, the FRss shall be calculated

according to Equation R8-7 using a reference vehicle with the worst case fuel use

rate to horsepower rating ratio that is in the same use characteristic category (e.g.

haul truck, loader, shovel, grader, etc.) as the vehicle for which emissions are

being calculated.

𝑡𝑑𝑎𝑦= duration of time the vehicle operated during the 24hr block period, expressed in

hr/day


𝐸𝑅𝑆𝑂2𝑑𝑎𝑦 (𝑙𝑏

𝑑𝑎𝑦) = 𝐸𝐹𝑆𝑂2

(𝑙𝑏


𝑔𝑎𝑙


ℎ𝑟

𝑑𝑎𝑦) × 𝐷𝑓 (

𝑙𝑏


𝑙𝑏





(𝑙𝑏


𝑔𝑎𝑙


ℎ𝑟

𝑑𝑎𝑦) ÷ 453.6 (

𝑔


𝑙𝑏


𝑙𝑏


3

Equation R8-7 is used to calculate the hourly fuel use rate if no site-specific fuel use rate is available in

Table R8-3 for a particular make and model of mining vehicle used. Table R8-3 lists the fuel usage rate for

reference vehicles. The fuel usage rate for the reference vehicle with the worst-case fuel-use-rate-to-

horsepower-rating ratio that is in the same Vehicle Use Category as the vehicle for which emissions are

being calculated is selected from the table. This fuel usage rate is adjusted for the horsepower of the

specific vehicle used, as compared to the horsepower of the reference vehicle, as shown in Equation R8-7.

𝐹𝑅𝑠𝑠 (𝑔𝑎𝑙

ℎ𝑟) =

𝐹𝑅𝑟(𝑔𝑎𝑙

ℎ𝑟)×𝐻𝑃𝑠𝑠(𝐻𝑝)

𝐻𝑃𝑟(𝐻𝑝) (Equation R8-7)

where:

𝐹𝑅𝑟= fuel use rate found in Table R8-3 of the worst case reference vehicle (i.e. worst

case fuel use rate to horsepower rating ratio) that is in the same use characteristic

category as the vehicle for which emissions are being calculated (i.e. if the vehicle

in question is a haul truck, use the reference haul truck HP rating found in

Table R8-3)

𝐻𝑃𝑠𝑠= site specific gross horsepower rating (this is the gross horsepower of the

particular vehicle make and model)

𝐻𝑃𝑟= gross horsepower rating found in Table R8-3 of the worst case reference vehicle

(i.e. worst case fuel use rate to horsepower rating ratio) that is in the same use

category as the vehicle for which emission are being calculated (i.e. if the vehicle


Table R8-3)

Fuel usage will be determined for each Mining Vehicle or group of Mining Vehicles as close to from

midnight to midnight as practical. The actual measured fuel usage for the nominal day will be corrected to

a 24-hr day per equation R8-8 below.

𝐹𝑅𝑑𝑎𝑦 = 𝐹𝑅𝑀𝑒𝑎𝑠 ×24

𝐻𝑜𝑢𝑟𝑠𝑀𝑒𝑎𝑠 (Equation R8-8)

where:


𝐹𝑅𝑀𝑒𝑎𝑠 = measured fuel usage for nominal day

𝐻𝑜𝑢𝑟𝑠𝑀𝑒𝑎𝑠 = duration of fuel measurement period, hours

24 = Hours in a calendar day

4

Table R8-1 NOx Emission Factors

Max Engine Power NOx EF Tier 4

>= 101 hp and < 174 hp 0.3 g/hp-hr

>= 175 hp and <= 750 hp 0.3 g/hp-hr

> 750 hp 2.6 g/hp-hr

Table R8-2 PM Emission Factors

Max Engine Power PM EF Tier 4

>= 101 hp and < 174 hp 0.015 g/hp-hr

>= 175 hp and <= 750 hp 0.015 g/hp-hr

> 750 hp 0.03 g/hp-hr

Table R8-3 Site Specific Fuel Usage Rates

Vehicle Use Category Max Engine Power

(horsepower)

Site Specific Fuel Usage

(gal/hr)(1)

Fuel/power Ratio

(gal/hp)

Mine Haul Trucks 2300 25.4 0.0110

Diesel Drill 1550 19.8 0.0128

Secondary Production

Excavator 1577 9.1 0.0058

Track Dozer 646 31.2 0.0241

Grader 275 6.8 0.0124

Rubber Tire Dozer 481 6.3 0.0130

Transfer Loader 800 1.9 0.0024

Backhoe With Hammer 110 0.2 0.0021

Water/Sand Truck 938 7.3 0.0039

Integrated Tool Handler 230 0.8 0.0037

(1) These values are based on pre-operation modeling of mining activities for the initial years of mine development. They will be

reviewed and may be updated after the commencement of mining operations.

5

R8-2.0 Tailings Basin Construction Vehicle Tailpipe Emissions

Two calculation methodologies may be used to calculate Tailings Basin Construction Vehicle tailpipe

emissions. The primary calculation method uses tracked daily equipment specific fuel use. The secondary

calculation method uses tracked daily operating hours and site-specific fuel use factors. The primary

calculation method is to be used when direct fuel use data is available. When direct fuel use data is not

available, the secondary calculation method may be used.

The emission limits for Tailings Basin Construction Vehicles in Appendix E are in pounds per day. Ideally,

fuel usage for each vehicle or group of vehicles will be tracked from midnight to midnight for each

operating day. This may not always be possible, so a procedure for adjusting the fuel usage recorded to

the daily fuel usage is also included in this appendix as Equation R8-16.


vehicle or group of vehicles with the same emission rating.





(𝑔

ℎ𝑝 − ℎ𝑟) × 𝐹𝑅𝑑𝑎𝑦 (

𝑔𝑎𝑙

𝑑𝑎𝑦) ÷ 453.6 (

𝑔


𝑙𝑏


𝑙𝑏

ℎ𝑝 − ℎ𝑟) (Equation R8-9)

where:


𝐸𝐹𝑁𝑂𝑥 = NOX emission factor in g/hp-hr found in Table R8-4 (value dependent on Tier 4

engine size)









(𝑙𝑏


𝑔𝑎𝑙


𝑙𝑏


𝑙𝑏


where:




0.0015% sulfur)

6




(𝑔


𝑔𝑎𝑙

𝑑𝑎𝑦) ÷ 453.6 (

𝑔


𝑙𝑏


𝑙𝑏


where:


𝐸𝐹𝑃𝑀10= PM10 emission factor in g/hp-hr found in Table R8-5 (value dependent on Tier 4

engine size)





(𝑔

ℎ𝑝 − ℎ𝑟) × 𝐹𝑅𝑠𝑠 (

𝑔𝑎𝑙


ℎ𝑟

𝑑𝑎𝑦) ÷ 453.6 (

𝑔


𝑙𝑏

𝑔𝑎𝑙)

÷ 𝐵𝑆𝐹𝐶 (𝑙𝑏

ℎ𝑝 − ℎ𝑟)

(Equation R8-12)

where:




according to Equation R8-15 using a reference vehicle with the worst case fuel

use rate to horsepower rating ratio that is in the same use characteristic category

(e.g. haul truck, loader, shovel, grader, etc.) as the vehicle for which emissions are

being calculated.


hr/day




(𝑙𝑏

ℎ𝑝 − ℎ𝑟) × 𝐹𝑅𝑠𝑠 (

𝑔𝑎𝑙


ℎ𝑟


𝑙𝑏


𝑙𝑏





(𝑙𝑏


𝑔𝑎𝑙


ℎ𝑟

𝑑𝑎𝑦) ÷ 453.6 (

𝑔


𝑙𝑏


𝑙𝑏



ℎ𝑟) =

𝐹𝑅𝑟 (𝑔𝑎𝑙ℎ𝑟

) × 𝐻𝑃𝑠𝑠(𝐻𝑝)


7

where:

𝐹𝑅𝑟= fuel use rate found in Table R8-6 of the worst case reference vehicle (i.e. worst

case fuel use rate to horsepower rating ratio) that is in the same use characteristic

category as the vehicle for which emissions are being calculated (i.e. if the vehicle


Table R8-6)







Table R8-6)

Fuel usage will be determined for each Tailings Basin Construction Vehicle as close to from midnight to

midnight as practical. The actual measured fuel usage for the nominal day will be corrected to a 24-hr day

per equation R8-16 below.



where:





8

Table R8-4 NOX Emission Factors

Max Engine Power NOx EF Tier 4

>= 101 hp and < 174 hp 0.3 g/hp-hr

>= 175 hp and <= 750 hp 0.3 g/hp-hr

> 750 hp 2.6 g/hp-hr


Max Engine Power PM EF Tier 4

>= 101 hp and < 174 hp 0.015 g/hp-hr

>= 175 hp and <= 750 hp 0.015 g/hp-hr

> 750 hp 0.03 g/hp-hr



(horsepower)


(gal/hr)(1)

Fuel/power Ratio

(gal/hp)

Tailings Basin Haul Truck 703 15 0.0213

Tailings Basin Track Dozer 347 8.1 0.0233

Tailings Basin Grader 294 6.8 0.0231

Tailings Basin Compactor 232 5.4 0.0233

Tailings Basin Excavator 523 12.2 0.0233

(1) These values are based on pre-operation modeling of mining activities for the initial years of mine development. They will be

reviewed and may be updated after the commencement of mining operations.

9

R8-3.0 Locomotive Emission Calculations

Two calculation methodologies may be used to calculate locomotive emissions. The primary calculation

method uses tracked daily locomotive specific fuel use. The secondary calculation method uses tracked

daily operating hours and site-specific fuel use factors. The primary calculation method is to be used when

direct fuel use data is available. When direct fuel use data is not available, the secondary calculation

method may be used.

The emission limits for locomotives in Appendix E are in pounds per day. Ideally, fuel usage for each

locomotive will be tracked from midnight to midnight for each operating day. This may not always be

possible, so a procedure for adjusting the fuel usage recorded to the daily fuel usage is also included in

this appendix as Equation R8-24.


locomotive or group of locomotives with the same emission rating.



𝑬𝑹𝑵𝑶𝒙𝒅𝒂𝒚 (𝒍𝒃

𝒅𝒂𝒚) = 𝑬𝑭𝑵𝑶𝒙

(𝒈


𝒈𝒂𝒍

𝒅𝒂𝒚) ÷ 𝟒𝟓𝟑. 𝟔 (

𝒈

𝒍𝒃) × 𝑫𝒇 (

𝒍𝒃


𝒍𝒃


where:


𝐸𝐹𝑁𝑂𝑥 = NOX emission factor in g/hp-hr found in Table R8-7 (value based on engine size

and emission rating)







𝑬𝑹𝑺𝑶𝟐𝒅𝒂𝒚 (𝒍𝒃

𝒅𝒂𝒚) = 𝑬𝑭𝑺𝑶𝟐

(𝒍𝒃


𝒈𝒂𝒍

𝒅𝒂𝒚) × 𝑫𝒇 (

𝒍𝒃


𝒍𝒃


where:




0.0015% sulfur)

10




(𝑔

ℎ𝑝−ℎ𝑟) × 𝐹𝑅𝑑𝑎𝑦 (

𝑔𝑎𝑙

𝑑𝑎𝑦) ÷ 453.6 (

𝑔


𝑙𝑏


𝑙𝑏


where:


𝐸𝐹𝑃𝑀10= PM10 emission factor in g/hp-hr found in Table R8-8 (value dependent on engine

size and emission rating)





(𝑔


𝑔𝑎𝑙


ℎ𝑟

𝑑𝑎𝑦) ÷ 453.6 (

𝑔


𝑙𝑏


𝑙𝑏


where:




according to Equation R8-23 using a reference locomotive with the worst case

fuel use rate to horsepower rating ratio that is in the same use characteristic

category (e.g. ore haul locomotive, switcher locomotive) as the vehicle for which

emissions are being calculated.


hr/day




(𝑙𝑏


𝑔𝑎𝑙


ℎ𝑟


𝑙𝑏


𝑙𝑏





(𝑙𝑏


𝑔𝑎𝑙


ℎ𝑟

𝑑𝑎𝑦) ÷ 453.6 (

𝑔


𝑙𝑏


𝑙𝑏


Equation R8-23 is used to calculate the hourly fuel use rate if no site-specific fuel use rate is available in

Table R8-9 for a particular locomotive used. Table R8-9 lists the fuel usage rate for reference vehicles. The

fuel usage rate for the reference vehicle with the worst-case fuel-use-rate-to-horsepower-rating ratio that

is in the same Vehicle Use Category as the vehicle for which emissions are being calculated is selected

from the table. This fuel usage rate is adjusted for the horsepower of the specific vehicle used, as

compared to the horsepower of the reference vehicle, as shown in Equation R8-23.


ℎ𝑟) =

𝐹𝑅𝑟(𝑔𝑎𝑙

ℎ𝑟)×𝐻𝑃𝑠𝑠(𝐻𝑝)


11

where:

𝐹𝑅𝑟= fuel use rate found in Table R8-39 of the worst case reference locomotive (i.e.

worst case fuel use rate to horsepower rating ratio) that is in the same use

characteristic category as the vehicle for which emissions are being calculated (i.e.

if the vehicle in question is a ore haul locomotive, use the reference ore haul

locomotive HP rating found in Table R8-39)







Table R8-39)

Fuel usage will be determined for each locomotive as close to from midnight to midnight as practical. The

actual measured fuel usage for the nominal day will be corrected to a 24-hr day per equation R8-24

below.



where:





12

Table R8-7 NOx Emission Factors

Max Engine Power NOx EF Tier 3 NOx EF Tier 4

>= 101 hp and < 174 hp 2.98 g/hp-hr 0.3 g/hp-hr

>= 175 hp and <= 750 hp 2.98 g/hp-hr 0.3 g/hp-hr

> 750 hp NA 2.6 g/hp-hr


Max Engine Power PM EF Tier 3 PM EF Tier 4

>= 101 hp and < 174 hp 0.22 g/hp-hr 0.015 g/hp-hr

>= 175 hp and <= 750 hp 0.15 g/hp-hr 0.015 g/hp-hr

> 750 hp NA 0.03 g/hp-hr



(horsepower)


(gal/hr)(1)

Fuel/power Ratio

(gal/hp)

Switcher Locomotive 700 5.4 0.0078

Ore Haul Locomotive 2100 16.3 0.0078

(1) These values are based on pre-operation modeling of locomotive activities for the initial years of mine development. They

will be reviewed and may be updated after the commencement of mining operations and/or as alternate equipment is added

to the fleet.

Appendix S

Class I Modeling

4300 MarketPointe Drive, Suite 200

Minneapolis, MN 55435

952.832.2600

www.barr.com

Class I Area Air Dispersion Modeling

NorthMet Project

Prepared for

Poly Met Mining, Inc.

January 2018

P:\Mpls\23 MN\69\2369862\WorkFiles\APA\Permitting\Air Permitting\Application\Appendix\App S-Class I Modeling\Class I Area Air Dispersion Modeling

v2d6.docx

i

Class I Area Air Dispersion Modeling

January 2018

Contents

S1.0 Introduction and Executive Summary.......................................................................................................................... 4

S2.0 Project Description .............................................................................................................................................................. 6

S2.1 Air Emissions ..................................................................................................................................................................... 6

S3.0 Class I Areas Assessment of Potential Impacts to Air Quality Related Values (AQRVs) ........................10

S3.1 Class I Areas ....................................................................................................................................................................10

S3.2 Air Quality Related Values (AQRVs) .......................................................................................................................10

S3.3 CALPUFF Modeling System ......................................................................................................................................11

S3.3.1 CALMET .......................................................................................................................................................................11

S3.3.2 CALPUFF ......................................................................................................................................................................12

S3.3.3 Post-processing........................................................................................................................................................13

S4.0 Acid Deposition Impacts Analysis ...............................................................................................................................14

S4.1 Background Deposition Values ...............................................................................................................................14

S4.2 Flora and Fauna .............................................................................................................................................................15

S4.3 Terrestrial and Aquatic Ecosystems .......................................................................................................................16

S4.3.1 Deposition Thresholds...........................................................................................................................................16

S4.3.2 Terrestrial Impacts ...................................................................................................................................................17

S4.3.3 Aquatic Impacts .......................................................................................................................................................19

S5.0 Visibility Impacts Analysis ...............................................................................................................................................21

S5.1 Visibility Thresholds .....................................................................................................................................................21

S5.2 Background Visibility Values ....................................................................................................................................22

S5.3 Visibility Modeling Results ........................................................................................................................................24

S6.0 Prevention of Significant Deterioration (PSD) Increment Analysis ................................................................26

S6.1 Project Modeling Results Compared to SILs .....................................................................................................27

S6.2 Class I Increment Analysis Emission Inventory ..................................................................................................29

S6.2.1 Minor Source Baseline Dates ..............................................................................................................................29

S6.2.2 Area and Mobile Sources .....................................................................................................................................29

S6.2.3 New Sources in Inventory ....................................................................................................................................30

S6.3 Increment Modeling Results ....................................................................................................................................30

S7.0 Summary and Conclusions – Class I Areas and Impacts to Air Quality Related Values (AQRVs) and

Increment ..............................................................................................................................................................................32

S8.0 References ............................................................................................................................................................................34

ii

List of Tables

Table S2-1 Project Air Emissions (Controlled Potential to Emit) ............................................................................. 6

Table S2-2 AQRV Emission Operating Assumptions ................................................................................................... 8

Table S3-1 Modeled Project Emission Rates (grams/second) ............................................................................... 12

Table S4-1 Existing and Estimated Background Values For Selected Class I Areas...................................... 15

Table S4-2 Class I Screening Analysis for Effects on Flora and Fauna from Sulfur Dioxide Total Annual

Average Ambient Air Concentrations – AQRV run Maximum........................................................ 16

Table S4-3 Class I Area Screening Analysis Results for Potential Terrestrial Impacts –AQRV run

Maximum............................................................................................................................................................. 18

Table S4-4 Screening Analysis Results for Potential Aquatic Effects –AQRV run Maximum .................... 20

Table S5-1 Comparison between Current and Previous FLAG Guidance ......................................................... 22

Table S5-2 Pristine Background Concentrations ........................................................................................................ 23

Table S5-3 Modeled Visibility Impacts ........................................................................................................................... 25

Table S6-1 Maximum Modeled Pollutant Concentrations from the Project Compared to Class I PSD

Increments .......................................................................................................................................................... 28

Table S6-2 PM10 Minor Source Baseline Dates ........................................................................................................... 29

Table S6-3 U.S. Census Bureau County Population Data ........................................................................................ 30

Table S6-4 Cumulative 24-hour PM10 Increment Modeling Summary .............................................................. 31

List of Large Figures

Large Figure S-1 Project Location

Large Figure S-2 PM10 Increment Modeling Results

List of Attachments

Attachment S1 Class I Modeling Protocol

Attachment S2 MPCA Protocol Correspondence

Attachment S3 Modeled Emission Rates

Attachment S4 Modeling Files

iii

Acronyms and Abbreviations

Abbreviation

/ Acronym Description

AQRV Air Quality Related Values

BWCAW Boundary Waters Canoe Area Wilderness

DAT deposition analysis thresholds

DEM digital elevation maps

EC elemental carbon

FLM Federal Land Managers

LTVSMC LTV Steel Mining Company

LULC land use land cover

MiSBD minor source baseline date

MM5 mesoscale meteorological data

MPCA Minnesota Pollution Control Agency

NADP National Atmospheric Deposition Program

PMC coarse particulate matter

PMF fine particulate matter

Protocol Class I Modeling Protocol

PSD Prevention of Significant Deterioration

S Sulfur

SIL Significant Impact Levels

SOA secondary organic aerosols

USEPA U.S. Environmental Protection Agency

USFS U.S. Forest Service

4

S1.0 Introduction and Executive Summary

Poly Met Mining, Inc. (PolyMet) performed discretionary Class I modeling to update previous

environmental review efforts as part of the air permitting action for the NorthMet Project (Project). The

requested air quality analysis conducted for the Project near Hoyt Lakes, Minnesota demonstrates that the

Project will not deteriorate air quality and also concludes that the Project will not have an adverse effect

on flora and fauna or terrestrial or aquatic ecosystems. When compared to pristine conditions, visibility

impacts are below “presumptive no adverse impact” criteria when using conservative modeling

procedures.

Air emission permits for Prevention of Significant Deterioration (PSD) major sources require that an air

quality analysis be conducted to demonstrate that modeled concentrations are below national ambient air

quality standards and that the Project will not significantly deteriorate air quality. While PolyMet is

proposing to permit the Project as a synthetic minor source for federal PSD purposes, PolyMet has agreed

to complete dispersion modeling that is generally consistent with what would be required for a major

source permit. The Minnesota Pollution Control Agency (MPCA) has instituted policies to set expectations

for modeling protocol and report submittals and to streamline the review and approval of air quality

modeling demonstrations. The current permit application modeling analysis adheres to the approved

dispersion modeling protocol and addendums. The Plant Site Class I Air Quality Air Dispersion Modeling

Protocol and approval correspondence from MPCA are attached to this report Attachment S1 and

Attachment S2.

For air quality purposes, areas are generally divided into two classes based on local land use. These are

referred to as Class I and Class II areas. Selected wilderness and national park areas are designated as

Class I areas. Other areas are designated as Class II areas.

Each classification differs in terms of the amount of economic growth and resultant emission growth that

is allowed. When developing the air permitting regulations, Congress anticipated that increases in

ambient air concentrations would be necessary in order for economic growth to occur. Ambient air

concentrations are capped at the National Ambient Air Quality Standards, which are set to protect human

health. No increases are allowed that would cause ambient air concentrations to go above these

standards. The air permitting regulations were also designed to keep ambient air concentrations relatively

unchanged from where they were at the time of the baseline, except for small increases to allow for

growth. In the area around the Project, the major source baseline was set in 1975 for PM10 and the minor

source baseline for PM10 was set in 1979 for St Louis County and 1999 for Lake County.

The allowed growth, or increase in ambient air concentrations, is referred to as the “increment”. In

addition to growth allowed for in terms of the increment that was set aside in the regulations, growth can

also be accommodated through decreases in ambient air concentrations resulting from reductions in air

emissions from sources in an area since the baseline. In addition to growth, potential impacts to Air

Quality Related Values (AQRVs), such as visibility and impacts on flora and fauna, are required to be

assessed for Class I areas.

5

This report describes the Class I area air quality impacts assessment that was conducted for the Project.

The air quality assessment for Class II areas has been prepared and reported separately. The Class I area

analysis provides an assessment of air quality impacts at the following Class I areas:

Boundary Waters Canoe Area Wilderness (BWCAW)

Rainbow Lake Wilderness

Voyageurs National Park

Isle Royale National Park

Federal Land Managers (FLMs) have responsibility for protecting air quality in the Class I areas. The U.S.

Forest Service (USFS) has responsibility for the BWCAW and Rainbow Lake Wilderness. The National Park

Service has responsibility for Voyageurs National Park and Isle Royale National Park. MPCA is the lead

permitting authority for the synthetic minor permit. This report is being submitted to the MPCA, which will

share the results with the above FLMs. The following conclusions were drawn from the modeling analysis

conducted for the Project; additional details of the conclusions are discussed in Sections S4.0, S5.0, and

S6.0.

No adverse impact on flora and fauna is expected.

Deposition values were below the Deposition Analysis Thresholds set by the USFS and National

Park Service. Therefore, no adverse impact on terrestrial and aquatic ecosystems is expected.

When compared to pristine conditions as prescribed in current guidance, no adverse visibility

impacts are indicated.

The Class I increment analysis demonstrates that air quality will not be deteriorated as a result of

the Project. The increases in criteria pollutant ambient air concentrations are below the Significant

Impact Levels (SILs). Earlier environmental review modeling showed 24-hour PM10 impacts above

the SIL. When modeled concentrations are greater than the SIL, a cumulative increment analysis is

required. Thus, a cumulative assessment was performed for the Project. Based on increment

modeling conducted, the Project, along with other projects, will not consume the available

increment for PM10 in the BWCAW. This conclusion is also supported by the fact that monitored

PM10 concentrations have decreased in this area, indicating an increase in the increment available

for growth.

6

S2.0 Project Description

PolyMet plans to construct and operate a mine approximately 6 miles south of the City of Babbitt

Minnesota, to reactivate and upgrade portions of the LTV Steel Mining Company Taconite Process Plant

and Tailing Basin near Hoyt Lakes, Minnesota, and to build an ore processing facility and construct new

facilities as needed to process the Project ore. This Class I modeling report is being provided as part of the

NorthMet Project Application for a Permit to Construct and Operate.

S2.1 Air Emissions

The Project’s controlled potential air emissions are shown in Table S2-1.

Table S2-1 Project Air Emissions (Controlled Potential to Emit)

Project AIR EMISSIONS

Plant Site Stationary

Source Emissions

(tons/year)

Mine Site Stationary

Source Emissions

(tons/year)(1)

Mobile Source

Emissions

(tons/year)(2)

Total PM10 Point Source Emissions 164.36 3.98 4.16

Total Fugitive PM10 Emissions 262.12 454.91 NA

Total Point Source Plus Fugitive PM10 Emissions 426.48 458.89 4.16

Total SO2 Emissions 6.36 0.81 0.57

Total NOX Emissions 95.31 5.43 242.04

Source: NorthMet emission calculation spreadsheets as submitted August 2016.

(1) Based on Mine Year 13 (higher of two worst-case years evaluated).

(2) Exhaust emissions from mining vehicles, locomotives, and Tailings Basin construction equipment. Not listed as “fugitive”

because stationary fugitive sources were not included in the Class I impacts analysis.

The emissions data presented in Table S2-1 include all point sources. Emergency generators and other

sources not operated during normal, full-capacity source operation were not included in the Class I

impact analysis, as is standard practice (Attachment S1). Fugitive dust emissions were also not included in

the Class I analysis, as is standard practice (Attachment S1). Furthermore, for the source categories

associated with the Project, neither fugitive emissions nor mobile source emissions are included in the

determination of the source status with respect to increment evaluation.

The emissions listed in Table S2-1 represent the worst case over the Project life, which was modeled in the

updated increment evaluation. The FLMs request the inclusion of mobile diesel source emissions in AQRV

evaluations. While not part of the stationary source subject to increment regulations, for the updated

AQRV modeling, the emissions from mobile sources are included in the AQRV analysis modeling, which

was performed separately from the increment evaluation modeling. There were some seasonal operating

limitations modeled to minimize visibility impacts.

The modeled configuration is displayed in Table S2-2. As represented below, 100% space heating

represents 100% of the design capacity. The design capacity is the rating needed to adequately heat the

7

facility when outdoor ambient temperatures reach as low as -40F. The truck fleet limitations reflect

proposed operational limits associated with this and other modeling performed for the project.

Specifically, the 42% reported in the table reflects modeled emissions corresponding to the maximum

construction fleet operating 10 hours per day during the construction season. Specific permit terms for

the Natural Gas Fired Space Heaters (GP 012 and GP 013) and Tailings Basins Construction Equipment

tailpipe emissions (GP 033) are proposed in Appendix E of the air permit application along with any other

operating constraints resulting from the Class I modeling assumptions.

8

Table S2-2 AQRV Emission Operating Assumptions

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

AQRV

Configuration

Space

Heating 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100%

TB Trucks 42% 42% 42% 42% 42% 42% 42%

9

The emission values presented in Table S2-1 reflect measures taken to reduce visibility impacts in the

BWCAW. The measures include the decisions to upgrade the insulation in the existing Crusher and

Concentrator Buildings and to purchase low-NOX natural gas fired space heating equipment such that

overall NOX emissions will be reduced by at least 50% below NOX emissions from conventional

equipment. Vehicles that meet Tier 4 emission standards are planned for the Project. These reduction

measures are in addition to longstanding commitments by PolyMet to reduce emissions such as the use

of efficient gen-set locomotives, the recirculation of dust collector exhaust to reduce heating demand, the

use of appropriate pollution control equipment, and the use of lower emitting fuels where feasible.

10

S3.0 Class I Areas Assessment of Potential Impacts to

Air Quality Related Values (AQRVs)

S3.1 Class I Areas

Four Class I areas that fall within an approximate 300 km radius from the Project were assessed for

potential impacts from the Project emissions using the CALPUFF modeling system. The areas are:

1. BWCAW

2. Isle Royale National Park

3. Rainbow Lake Wilderness

4. Voyageurs National Park

Large Figure S-1 of shows the Project’s location relative to the four Class I areas. The nearest part of the

BWCAW is located approximately 34 km (21 miles) northeast of the Hoyt Lakes facility and it extends to

167 km (104 miles) east-northeast of the site. The Rainbow Lake Wilderness is located approximately 142

km (88 miles) southeast of Hoyt Lakes in Wisconsin. Both the BWCAW and the Rainbow Lake Wilderness

are managed by the USFS.

Isle Royale National Park is located on Isle Royale in the northern part of Lake Superior (in the state of

Michigan) approximately 218 km (135 miles) east and slightly north of the Project. Voyageurs National

Park is located just east of International Falls, Minnesota and stretches east along the northern border of

Minnesota. The nearest part of Voyageurs National Park is approximately 82 km (51 miles) north of the

Project location. Both parks are managed by the National Park Service.

S3.2 Air Quality Related Values (AQRVs)

AQRVs are features or properties of Class I areas that could be adversely affected by air pollution. The

Clean Air Act requires that potential AQRV impacts be reviewed for all major sources near Class I areas.

The Project is not a major source, but, in general, the standard procedures for major sources were

followed in the assessment of potential Class I impacts.

Although AQRVs are not well defined in the Clean Air Act (CAA), AQRVs are generally considered by the

FLMs to include visibility impairment and acid deposition. In addition, an assessment of the Class I

increment has also been prepared based on MPCA guidance.

PolyMet has performed an analysis of projected AQRV impacts from the Project on acid deposition,

visibility, and the Class I increment. The methods for these computations of potential impacts are as

outlined in the FLM Recommendations on Class I Area Analyses, which also references the following

documents:

11

the USFS’s “Screening Procedures to Evaluate Effects of Air Pollution on Eastern Wildernesses

Cited as Class I Air Quality Areas” for flora and fauna and acid deposition; (Reference (3))

the “Interagency Workgroup on Air Quality Modeling (IWAQM) Phase 2 Guidance for Modeling

Impacts on Visibility”(Reference (4)), and

the “Federal Land Managers’ Air Quality Related Values Workgroup (FLAG) Guidance”

(Reference (5), Reference (6)).

S3.3 CALPUFF Modeling System

The CALPUFF Modeling System is the required model for determining visual impacts at long distances

from sources. This model was used in accordance with the guidelines found in the Interagency Workgroup

on Air Quality Modeling (IWAQM) Phase 2 Summary Report and Recommendations for Modeling Long

Range Transport Impacts (Reference (4) and the 2010 revisions to Federal Land Managers' Air Quality

Related Values Work Group guidance Reference (6)). The Class I Modeling Protocol (Protocol) approved

by the FLMs and the MPCA is included in Attachment S1. The Protocol specifies the model options and

user-selected fields for the analysis. Attachment S2 contains comments on the Protocol from the FLMs

and the MPCA.

The CALPUFF system consists of three main components (CALMET, CALPUFF, and CALPOST) and a

number of preprocessing programs. These preprocessing programs are designed to prepare available

meteorological and geophysical data for input into CALMET. Each of these modeling components is

described below:

CALMET is a meteorological model that develops hourly wind and temperature fields on a three-

dimensional gridded modeling domain. Associated two-dimensional fields such as mixing heights,

terrain elevations, land use categories, and dispersion properties are also included in the file

produced by CALMET.

CALPUFF is a transport and dispersion model that follows the “puffs” of material emitted from

one or more sources as they travel downwind. CALPUFF simulates dispersion and chemical

transformations as each puff moves away from the source, using the multi-dimensional grids

generated by CALMET.

CALPUFF produces an output file containing hourly concentrations of pollutants which are

processed by CALPOST to yield estimates of ambient air concentrations to determine increment

consumptions, estimates of sulfur and nitrogen deposition, and estimates of extinction

coefficients and related measures of visibility impairment at selected averaging times and

locations.

S3.3.1 CALMET

Three years (2002-2004) of prognostic mesoscale meteorological data (MM5), surface weather data,

precipitation data, and upper air data were used to generate the CALMET data set for use in the CALPUFF

12

model. The CALMET computational grid for the greater domain was 132 grid cells (east-west) by 90 grid

cells (north-south) with a grid spacing of 4 km. Vertical grid spacing was consistent with current guidance,

as described in the Protocol (Attachment S1). U.S. Geological Survey digital elevation maps (DEMs) and

land use land cover (LULC) files required by CALMET were obtained from the WebMET and WebGIS

websites hosted by Lakes Environmental and the GeoBase website hosted by Natural Resources Canada.

The CALMET grid used in the cumulative PM10 increment analysis described in Section 0 required the use

of an expanded CALMET grid to cover the additional sources, with the CALMET grid spacing increased to

12 km to make the model run times practical. This approach is reasonable because the terrain in northern

Minnesota is fairly uniform and moving to a 12 km grid will not result in modeling inaccuracies for long-

range transport from these more distant sources. A sensitivity run was conducted and confirmed this to

be the case.

S3.3.2 CALPUFF

CALPUFF model input files were set up for each year of CALMET data. Inputs to the CALPUFF modeling

system included three years of MM5 weather data, three years of hourly surface weather data, three

years of upper air data, three years of hourly precipitation data, Project emission rates, source locations,

receptor locations, land elevation data, and land use data. Model parameters were set to IWAQM Phase 2

recommended values, followed by U.S. Environmental Protection Agency (USEPA) regulatory default

values where available, followed by the default values recommended in the model input file. The selection

of model parameters is fully detailed in the modeling Protocol (Attachment S1).

The CALPUFF modeling considered the emission of SO2, NOX, PMC (coarse particulate matter), PMF (fine

particulate matter), EC (elemental carbon), SOA (secondary organic aerosols), and sulfates (SO4). The

Project emission rates used in the CALPUFF modeling are provided in Table S3-1. Detailed emission rate

calculations for each modeled source are included in Attachment S3 and in the emission inventory

spreadsheets. Modeling files are included in Attachment S4.

Table S3-1 Modeled Project Emission Rates (grams/second)

Species Increment run AQRV run

SO2 0.31 0.34

NOX 1.99 13.95

PMC 0.09 0.09

PMF 4.74 4.79

EC 0.05 0.11

SOA 0.14 0.17

SO4 0.14 0.14

13

PMC represents the portion of PM10 greater than 2.5 µm in diameter; EC was represented by the carbon

content of filterable PM10; SOA was represented by the organic condensable fraction of the PM10; SO4 is

represented by the sulfuric acid emissions; PMF is the remainder of the non-carbon filterable and non-

organic and non-SO4 portions of the condensable fraction of the PM10. Emitted PM10 is thus the

summation of PMC, PMF, EC, SOA, and SO4.

The CALPUFF modeling also tracked SO4, NO3, and HNO3, which are generated by the chemical

transformation of the emitted SO2 and NOX. The IWAQM recommended MESOPUFF II algorithms were

selected to describe the rates of transformation. The MESOPUFF II transformation rates are a function of

the background ozone and ammonia concentrations. The default CALPUFF libraries were used to

characterize the wet and dry deposition of the modeled particulate and gaseous species.

Per guidance included in a May 4, 2012, e-mail from MPCA (Reference (7)), transformation chemistry, and

the associated secondary particulate formation was not included in the evaluation of PM10 increment

consumption.

Both dry and wet deposition were modeled for all nine species (PMC, PMF, EC, SOA, SO4, and NO3 were

modeled as dry deposition of particles; NOX, HNO3, and SO2 were modeled as dry deposition of gases) to

obtain total sulfur and nitrogen deposition.

The CALPUFF modeling used the receptors for the BWCAW, Rainbow Lake Wilderness, Voyageurs

National Park, and the Isle Royale National Park obtained from the National Park Service’s web site

(http://nature.nps.gov/air/Maps/Receptors/).

S3.3.3 Post-processing

The CALPUFF output of hourly concentration values requires different post-processing methods to

generate the AQRV estimates of deposition, visibility, and increment. The post-processing used the two

program modules: CALPOST and POSTUTIL

POSTUTIL recalculates the hourly concentration values produced by CALPUFF to reflect ammonia-

scavenging chemistry in the model. The ammonia values used by POSTUTIL are independent of the

ammonia value used in the MESOPUFF II chemical transformation algorithm in CALPUFF. A background

ammonia concentration of 1 part per billion was used. POSTUTIL also is used to sum the individual species

contributions of wet and dry deposition to calculate total sulfur and nitrogen deposition.

CALPOST processes the hourly concentration files generated by CALPUFF to develop the estimates of

deposition, air pollutant concentrations, and visibility impairment resulting from facility emissions. For

visibility calculations, CALPOST uses relative humidity data in conjunction with the hourly concentration

files to calculate 24-hour average light extinction coefficients. CALPOST visibility processing used Method

8. Method 8 uses the visibility calculation procedures and Class I area-specific monthly average relative

humidity data provided in the 2010 revision of the FLAG guidance.

14

S4.0 Acid Deposition Impacts Analysis

An evaluation of potential impacts to species (flora and fauna) and ecosystems (terrestrial and aquatic)

resulting from Project SO2 and NOX emissions was conducted according to the methodology outlined in

the USFS publication entitled “Screening Procedures to Evaluate Effects of Air Pollution on Eastern

Wildernesses Cited as Class I Air Quality Areas” (Reference (3)) as well as the NPS publication “Federal

Land Managers’ Interagency Guidance for Nitrogen and Sulfur Deposition Analyses.”

S4.1 Background Deposition Values

Data characterizing the Class I areas for ambient air concentrations of selected pollutants and for sulfur

and nitrogen deposition are provided in Table S4-1. Assumptions and data applications were made for

the four Class I areas in order to complete the AQRV analysis. Some of the major assumptions and data

applications are listed below. Other assumptions and data applications, particularly those related to

estimating dry sulfur and dry nitrogen deposition, are included in the footnotes to Table S4-1.

Isle Royale: Sulfur and nitrogen deposition data for Isle Royale are limited. The National

Atmospheric Deposition Program (NADP) operates a precipitation-monitoring site on Isle Royale

during the ice-free season and provides seasonal deposition values for sulfur and nitrogen.

However, average annual deposition data are needed for the AQRV analysis. Average annual

deposition data from the NADP site at Hovland, Minnesota, which is located within the Lake

Superior basin approximately 22 miles south and west of Isle Royale, were subsequently used to

estimate annual average deposition for Isle Royale.

Rainbow Lake Wilderness: The Rainbow Lake Wilderness is located in northwest Wisconsin. The

NADP operates a monitoring site near Spooner, Wisconsin. Wet sulfate and wet nitrate deposition

data from the Spooner NADP site were applied to the Rainbow Lake Wilderness.

15

Table S4-1 Existing and Estimated Background Values For Selected Class I Areas

Characteristic BWCAW Isle Royale

Rainbow

Lake

Voyageurs

Park

Mean SO2 Concentration, annual (g/m3) (1) 1.2 2.0 1.6 0.7

Max SO2 Concentration, 3-hour (g/m3) (2) 10.8 18 14.4 6.3

Ozone Concentration, 2nd-high hourly (ppbv) (3) 68 68 90 71

Annual Sulfur Deposition

Wet deposition (kg S/ha/yr) (4)

Dry deposition (kg S/ha/yr) (5)

Total deposition(kg S/ha/yr)

2.42

0.43

2.85

1.72

0.43

2.15

2.55

0.43

2.98

1.41

0.43

1.84

Annual Nitrogen Deposition

Wet deposition (kg N/ha/yr) (4)

Dry deposition (kg N/ha/yr) (5)

Total deposition (kg N/ha/yr)

4.07

0.68

4.75

3.17

0.68

3.85

5.20

0.68

5.88

3.19

0.68

3.87

(1) Mean annual SO2 concentrations (g/m3):

Annual average SO2 (g/m3) concentrations calculated from data (1991-1993) in Table 1 of Reference (3)):

BWCAW: data from Ely, MN site applied to BWCAW.

Isle Royale National Park: data from the Finland, MN site applied to Isle Royale National Park.

Rainbow Lake Wilderness: data from the Sandstone, MN site applied to Rainbow Lake Wilderness.

Voyageurs National Park: data from Annual Data Summary, Voyageurs National Park 2002, National Park Service,

Gaseous Air Pollutant Monitoring Network, Report No. NPS D-139.

(2) Highest 3-hour SO2 set equal to annual average SO2 x 9.0, in accordance with USEPA Guideline (see Table S4-3)

(3) Ozone concentrations:

BWCAW: data from USEPA AirData, Lake County, MN (2003)

Isle Royale National Park: data from USEPA AirData, Lake County, MN (2003)

Rainbow Lake Wilderness: data from USEPA AirData, Polk County, WI (1998)

Voyageurs National Park: data from Annual Data Summary, Voyageurs National Park 2001, National Park Service,

Gaseous Air Pollutant Monitoring Network, Report No. NPS D-134.

(4) Annual wet deposition data from NAPD data base (http://nadp.sws.uiuc.edu)

BWCAW: data for Hovland Site, Cook County, MN (1997-2003)

Isle Royale National Park: data for Fernberg Site, Lake County, MN (1997-2003)

Rainbow Lake Wilderness: data for Spooner Site, Washburn County, WI (1997-2003)

Voyageurs National Park: data for Voyageurs National Park, Sullivan Bay, St. Louis County, MN (2000-2003)

(5) Annual dry deposition data from CASTnet database (http://www.epa.gov/castnet) for Voyageurs National Park. (1996-

2002)

S4.2 Flora and Fauna

Adverse effects to flora (plants) and fauna (animals) are generally accepted to mean any changes in

growth, reproduction, mortality, or diversity of native plant and animal species caused by anthropogenic

activities. In evaluating potential adverse effects to flora and fauna, lichen species are generally used as a

threshold indicator of potential air pollution damage because they are especially susceptible to air

pollution and show adverse effects before other plant species and animal species. If pollutant

concentrations in a Class I area are sufficiently low such that no damage occurs to native lichens, then it

can reasonably be concluded that other flora and fauna species are protected. The most sensitive lichen

species are only present when annual average SO2 concentrations are less than 40 g/m3 (Reference (2)).

Table S4-2 compares the total projected air concentration, including the modeled project contribution, to

http://www.epa.gov/castnet

16

the green line concentration. As can be seen in Table S4-2, estimated SO2 ambient air concentrations are

substantially lower than 40 g/m3, and they are also well below the Green Line Concentration of 5 g/m3,

indicating that there will be no adverse effects from the Project emissions on flora or fauna in the Class I

areas.

Table S4-2 Class I Screening Analysis for Effects on Flora and Fauna from Sulfur Dioxide Total

Annual Average Ambient Air Concentrations – AQRV run Maximum

Location

Background Air

Concentration (1)

(g/m3)

Modeled

Project Contribution (2)

(g/m3)

Total Projected Air

Concentration

(g/m3)

Green Line

Concentration (3)

(g/m3)

BWCA Wilderness 1.2 0.001 1.2 5

Isle Royale National Park 2.0 0.000 2.0 5

Rainbow Lake Wilderness 1.6 0.000 1.6 5

Voyageurs National Park 0.7 0.000 0.7 5



BWCAW: data from Ely, MN site applied to BWCAW

Isle Royale National Park: data from the Finland, MN site applied to Isle Royale National Park.

Rainbow Lake Wilderness: data from the Sandstone, MN site applied to Rainbow Lake Wilderness.

Voyageurs National Park: data from Annual Data Summary, Voyageurs National Park 2002, National Park Service, Gaseous Air

Pollutant

Monitoring Network, Report No. NPS D-139.

(2) Maximum modeled ambient air concentration in a Class I area using the CALPUFF modeling system.

(3) Green line concentration from (Reference (3))

S4.3 Terrestrial and Aquatic Ecosystems

S4.3.1 Deposition Thresholds

Adverse effects to terrestrial and aquatic ecosystems were evaluated using the National Park Service and

the USFS deposition analysis thresholds (DATs) to evaluate if the incremental impact of the Project for

deposition is acceptable.

DATs have been developed by the FLMs (Reference (7)) to evaluate the contribution of additional nitrogen

(N) or sulfur (S) to deposition within Class I areas. The definition of a DAT is “the additional amount of

nitrogen or sulfur deposition within a Class I area, below which estimated impacts from a proposed new

or modified source are considered insignificant”. The DATs that have been developed are intended to

distinguish where deposition increases may result in potentially adverse ecosystem stresses, as well as

where the deposition increases are likely to have negligible impact on AQRVs. The FLMs have calculated

the following DATs:

N = 0.01 kg/ha/yr

S = 0.01 kg/ha/yr

17

The DAT is the additional amount of deposition (i.e., deposition threshold) that triggers a management

concern, not necessarily the amount that constitutes an adverse impact to the environment. Adverse

impact determinations are considered on a case-by-case basis, taking into consideration the best

available scientific information to assess existing as well as potential future deposition impacts. The

magnitude of the estimated deposition and the sensitivity of the ecosystem are also considered. Site-

specific information for each Class I area is also taken into account, and the potential deposition impacts

from a source are evaluated not just in relation to the DAT, but considering other factors as well, such as

whether an adverse impact resulting from deposition has been documented, or suspected, in that specific

Class I area.

S4.3.2 Terrestrial Impacts

The pollutant values required for the terrestrial impacts evaluation are the Project-related nitrogen and

sulfur deposition and SO2 ambient air concentrations. The maximum modeling results are provided in

Table S4-3. The modeled results are below the DATs for terrestrial effects for the Class I areas.

18

Table S4-3 Class I Area Screening Analysis Results for Potential Terrestrial Impacts –AQRV run

Maximum

Location(1) Pollutant

Background

Data(2)

Model Air

Concentration or

Calculated Project-

Related Deposition(3)

Total

Concentration

or Deposition

Green Line Value

or Deposition

Analysis

Threshold(4) (5)

BWCAW – Ely

Ann. avg. SO2 (g/m3)

3-hour max. SO2 (g/m3)

Total Sulfur (kg/ha/yr)

Total Nitrogen (kg/ha/yr)

1.2

10.8

2.85

4.75

0.001

0.105

0.001

0.008

1.2

10.9

2.9

4.8

5 g/m3

100 g/m3

0.01 kg/ha/yr S

0.01 kg/ha/yr N

Isle Royale

National Park





2.0

18

2.15

3.85

0.000

0.002

0.000

0.000

2.0

18

2.2

3.9

5 g/m3

100 g/m3

0.01 kg/ha/yr S

0.01 kg/ha/yr N

Rainbow Lake

Wilderness





1.6

14.4

2.98

5.88

0.000

0.004

0.000

0.000

1.6

14.4

3.0

5.9

5 g/m3

100 g/m3

0.01 kg/ha/yr S

0.01 kg/ha/yr N

Voyageurs

National Park





0.7

6.3

1.84

3.87

0.000

0.020

0.000

0.001

0.7

6.3

1.8

3.9

5 g/m3

100 g/m3

0.01 kg/ha/yr S

0.01 kg/ha/yr N

(1) Highest modeled air concentration in each Class I area.



BWCAW: data from Ely, MN site applied to BWCAW

Isle Royale National Park: data from the site in Finland, Minnesota, applied to Isle Royale National Park.

Rainbow Lake Wilderness: data from the site in Sandstone, Minnesota, applied to Rainbow Lake Wilderness.

Voyageurs National Park: data from Annual Data Summary, Voyageurs National Park 2002, National Park Service, Gaseous Air

Pollutant

Monitoring Network, Report No. NPS D-139.

Highest 3-hour SO2 set equal to annual average SO2 x 9.0, in accordance with USEPA Guideline (Reference (10)).

Annual wet deposition data from NAPD data base (http://nadp.sws.uiuc.edu)

BWCAW: data for Hovland Site, Cook County, MN (1997-2003)

Isle Royale National Park: data for Fernberg Site, Lake County, Minnesota (1997-2003)

Rainbow Lake Wilderness: data for Spooner Site, Washburn County, Wisconsin (1997-2003)

Voyageurs National Park: data for Voyageurs National Park, Sullivan Bay, St. Louis County, Minnesota (2000-2003)

Annual dry deposition data from CASTnet database (http://www.epa.gov/castnet) for Voyageurs National Park. (1996-2002)

(3) Model estimated ambient air concentrations using the CALPUFF modeling system.

(4) Green line concentration from (Reference (9)). Deposition Analysis Threshold (DAT) is based on FLM Guidance for the Eastern

U.S.

(5) S = sulfur; N = nitrogen.


19

S4.3.3 Aquatic Impacts

The pollutant values required for the aquatic impacts evaluation are the Project-related nitrogen and

sulfur deposition. The maximum modeling results are provided in Table S4-4. The modeled results are not

over the DATs for aquatic effects for any of the Class I areas.

20

Table S4-4 Screening Analysis Results for Potential Aquatic Effects –AQRV run Maximum

Location(1) Pollutant(2)

Background

Deposition(3)

(kg/ha/yr)

Estimated Project-Related

Deposition

(kg/ha/yr)

Total Deposition

(Project +

Background)

(kg/ha/yr)

Deposition Analysis

Threshold(4)

(kg/ha/yr)

BWCAW – Ely Total Sulfur

Total N

2.85

3.80

0.001

0.008

2.85

3.81

0.01

0.01

Isle Royale National Park Total Sulfur

Total N

2.15

3.85

0.000

0.000

2.15

3.85

0.01

0.01

Rainbow Lake Wilderness Total Sulfur

Total N

2.98

4.16

0.000

0.000

2.98

4.16

0.01

0.01

Voyageurs National Park Total Sulfur

Total N

1.84

3.87

0.000

0.001

1.84

3.87

0.01

0.01

(1) Highest modeled deposition used in the assessment.

(2) S = Sulfur; N = Nitrogen.

(3) Annual wet deposition data from NAPD data base (http://nadp.sws.uiuc.edu)

BWCAW: data for Hovland Site, Cook County, Minnesota (1997-2003)

Isle Royale National Park: data for Fernberg Site, Lake County, Minnesota (1997-2003)

Rainbow Lake Wilderness: data for Spooner Site, Washburn County, Wisconsin (1997-2003)

Voyageurs National Park: data for Voyageurs National Park, Sullivan Bay, St. Louis County, Minnesota (2000-2003)

Annual dry deposition data from CASTnet database (http://www.epa.gov/castnet) for Voyageurs National Park. (1996-2002)

(4) Deposition Analysis Thresholds based on FLM guidance for the eastern U.S.


21

S5.0 Visibility Impacts Analysis

Three Class I areas were included in the visibility analysis for the Project: the BWCAW (located 34 km from

Project facility), Voyageurs National Park (82 km), and Isle Royale National Park (218 km). The Rainbow

Lake Wilderness Areas in Wisconsin does not have an AQRV for visibility.

The potential visibility impacts associated with the Project were evaluated using CALPUFF based on

currently accepted guidance (i.e., Method 8) from the FLMs (Reference (6)). Potential changes in the

visibility were expressed in terms of a light extinction coefficient bext. The approach has four major steps.

1. The atmospheric concentrations of visibility-impairing pollutants at receptors in the BWCAW,

Voyageurs National Park, and the Isle Royale National Park were estimated by the CALPUFF

modeling system.

2. Extinction coefficients were calculated from the model-generated atmospheric concentrations of

visibility-impairing pollutants. Extinction coefficient results from CALPOST Method 8 calculations

are presented.

3. The emission-derived extinction coefficients were compared to the 20% best pristine day’s

background.

4. The potential visibility impacts were expressed as changes in the overall extinction coefficient

(bext) and the number of days resulting in a change greater than 5% and 10%.

S5.1 Visibility Thresholds

Visibility impairment is defined as “…. Any humanly perceptible change in visibility (visual range, contrast,

coloration) from that which would have existed under natural conditions.” (40 CFR 51.301). For this

analysis, visibility effects were determined by the change in light extinction as calculated in CALPOST.

USEPA’s PSD guidance states; “An ‘adverse impact on visibility’ means visibility impairment which

interferes with the management, protection, presentation, or enjoyment of a visitor’s visual experience of

the Federal Class I area.”

Current FLM guidance provides the following threshold with regard to individual source visibility impacts

(Reference (6)):

“The visibility threshold for concern is not exceeded if the 98th percentile change in light extinction is less

than 5% for each year modeled, “

FLAG 2010 (Reference (6)) (Method 8) is the most recent approved guidance from the FLMs. Table S5-1

shows the threshold differences between the current method and the prior method.

22

Table S5-1 Comparison between Current and Previous FLAG Guidance

FLAG 2000 FLAG 2010

Maximum Day Over 10% "...FLMs will likely object to the proposed

action." NA(1)

Maximum Day Between 5

and 10% "...a special decision threshold applies." NA

98th Percentile Day Less

Than 5% (H8H) NA "Presumptive no adverse impact"

No Days Over 5% "...generally not trigger a need for a

cumulative analysis." NA

(1) Not applicable (i.e., the guidance in this column does not use the criteria listed in the first column.

S5.2 Background Visibility Values

Model runs were conducted for comparison to the 20% best pristine days. The 20% best pristine days

used for CALPUFF input are shown in Table S5-2. The visibility modeling results consider the Project

exclusively.

23

Table S5-2 Pristine Background Concentrations

Class I Area Background

Ammonium

Sulfate

(µg/m3)

Ammonium

Nitrate

(µg/m3)

Coarse

Particulate

Matter

(µg/m3)

Organic

Carbon

(µg/m3)

Soil

(µg/m3)

Elemental

Carbon

(µg/m3)

Rayleigh

(Mm-1)

BWCAW 20% Best (a) 0.11 0.02 0.86 0.50 0.13 0.01 11

Voyageurs 20% Best (a) 0.12 0.02 0.86 0.56 0.10 0.01 12

Isle Royale 20% Best (a) 0.10 0.02 0.79 0.34 0.09 0.01 12

20% Best background from Table V.1-2 in Reference (6). Used with CALPOST Method 8.

24

S5.3 Visibility Modeling Results

CALPUFF/CALPOST modeling results for visibility impacts compared to 20% best pristine days for the

AQRV Project emissions are presented in Table S5-3 through Error! Reference source not found..

Results are presented for each Class I area. CALPOST visibility processing used Method 8 for 20% best

pristine days. Method 8 is the method currently approved in guidance from the FLMs.

When compared to pristine conditions, the Project has no days with a change in extinction greater than

5% at Voyageurs or Isle Royale.

Using current modeling guidance (Method 8), the 98th percentile day impacts have a change in extinction

of less than 5% change at BWCAW. These visibility modeling results meet the current FLM criteria for

demonstrating no adverse impacts.

25

Table S5-3 Modeled Visibility Impacts

Full Space Heating

Limited (42%) TB Construction

Fleet

Natural Background

FLAG 2010

Method 8 (monthly RH,

20% best days background)

2002 2003 2004

BWCAW

Maximum bext (%) 7.89 5.61 6.17

8th highest bext (%) 4.63 3.65 4.13

Days with bext 5% 5 4 3


98th %ile days with bext 5% 0 0 0


Voyageurs

Maximum bext (%) 1.45 2.71 2.27

8th highest bext (%) 0.96 1.01 1.09





Isle Royale

Maximum bext (%) 0.8 0.55 0.7

8th highest bext (%) 0.39 0.18 0.26





26

S6.0 Prevention of Significant Deterioration (PSD)

Increment Analysis

Air emission permits for major sources require that an air quality analysis be conducted to demonstrate

that modeled project emissions will not be above national ambient air quality standards and that the

Project will not significantly deteriorate air quality from baseline levels beyond what has been set aside for

growth. The allowance for growth, in terms of air quality, is defined as the increment of the national

ambient air quality standards that are set aside for increases in ambient air concentrations.

The Project is not a major source, but the same method was used for assessing impacts in Class I Areas

that is used for major sources.

In the first step in the Class I PSD increment analysis, the modeled ambient air concentrations are

compared to SILs1. Modeled air concentrations greater than a SIL do not indicate that adverse impacts will

be associated with a Project’s emissions; they simply trigger additional analysis. If the modeled

concentrations are above the SILs, then the applicant is required to conduct a cumulative increment

analysis, which accounts for all increment consuming and expanding sources within 300 km of the Class I

areas. As discussed in Section S6.1, the modeled Project air emissions are above the 24-hour PM10 SIL in

the BWCAW, which triggered a cumulative increment analysis for PM10. The purpose of the cumulative

increment analysis is to demonstrate that emissions from the Project, along with emission increases and

decreases from other facilities that have occurred since the baseline, will result in modeled ambient air

concentrations below the allowed increments.

Two components of the cumulative increment modeling analysis require additional detail beyond that

used in the analysis for the AQRVs, and these components are the modeling procedures and the emission

inventory. As discussed in Section 3.3.1, the modeling domain needed to be expanded to include

increment sources within 300 km. Additional post-processing was also required for calculating the net

increment consumption. Development of the increment modeling emission inventory is discussed in detail

in Section S6.3.

1 The SILs were proposed by USEPA in July 1996 (61 FR 61 FR 38292), and are used by the FLMs as a benchmark for determining if

further analysis is warranted. The Class I SILs were proposed by USEPA but have never been finalized. The SILs were established by

USEPA as a threshold for decision-making with regard to the need for additional analysis. USEPA set the SILs at four percent of the

Class I area increment. USEPA’s working assumption is that as long as no individual source contribution exceeds four percent of a

Class I increment, it is unlikely that the accumulation of sources over time will exceed that increment and no additional analysis is

needed. The SILs proposed by USEPA in July 1996 (61 FR 61 FR 38292), but never finalized, are de minimis levels set at four percent

of the allowable Class I increment concentration. According to USEPA, “where a proposed source contributes less than four percent

to the Class I increment, concentrations are sufficiently low so as not to warrant a costly and detailed analysis of the combined

effects of the proposed source and all other increment consuming emissions.” (61 FR 38292). Even though the Class I SILs have not

been finalized, they were used as guidance for assessing the impacts on the Class I areas.

27

S6.1 Project Modeling Results Compared to SILs

Table S6-1 shows the maximum-modeled pollutant concentrations from Project emissions compared to

the Class I increments and SILs for the three model years of 2002, 2003, and 2004.

While the modeling demonstrates compliance with the promulgated increments by a wide margin, the

modeling shows concentrations near the proposed 24-hour SILs for PM10 in BWCAW. Earlier modeling

during environmental review showed impacts above the proposed 24-hour SILs for PM10 in the BWCAW.

Therefore, additional analysis was conducted to evaluate the cumulative impacts to PM10 increment in the

BWCAW.

28

Table S6-1 Maximum Modeled Pollutant Concentrations from the Project Compared to Class I PSD Increments

Pollutant Averaging Period

PSD Class I

Increment

(µg/m3) USEPA SIL (µg/m3)

Modeled Results

BWCAW (µg/m3)

Voyageurs

National

Park

(µg/m3)

Isle Royale

National

Park

(µg/m3)

Rainbow

Lake Area

Wilderness

(µg/m3)

SO2 3-Hour 25 1.0 0.106 0.020 0.002 0.004

24-Hour 5 0.2 0.027 0.005 0.001 0.001

Annual 2 0.1 0.001 0.000 0.000 0.000

NO2 Annual 2.5 0.1 0.008 0.002 0.000 0.001

PM10 24-Hour 8 0.3 0.290 0.130 0.029 0.028

Annual 4 0.2 0.021 0.005 0.001 0.002

The maximum-modeled concentration from 2002-2004 meteorological data is presented.

29

S6.2 Class I Increment Analysis Emission Inventory

A cumulative emission inventory for PM10 in Voyageurs and the BWCAW was received from MPCA in July

2016. This emission inventory was developed to include increment consuming and expanding sources.

Current knowledge is that no other major sources within the region have submitted complete permit

applications since this inventory was prepared. The emission inventory includes modifications to existing

sources, new facilities that have been permitted or submitted permit applications, and increases in actual

emissions from existing facilities.

The inventory includes major sources within approximately 300 kilometers of Voyageurs and the BWCAW.

Selected minor sources near the Class I Areas are also included, as selected by MPCA. The project impacts

have been below the SIL in Voyageurs in previous and current modeling, but at the request of MPCA, the

cumulative results for Voyageurs are included.

S6.2.1 Minor Source Baseline Dates

The minor source baseline date (MiSBD) is triggered at the time when a major PSD permit application is

submitted and deemed complete. A cumulative increment assessment considers increases and decreases

in emissions from sources occurring since the MiSBD to the time of the Project. MiSBDs are typically set

on a county-by-county basis. Voyageurs and the BWCAW are spread across several Minnesota counties

and have one county in common. Voyageurs is within Koochiching and St. Louis counties. The BWCAW is

within St. Louis, Lake, and Cook counties. For these four counties, the MiSBDs for PM10 are shown in

Table S6-2

Table S6-2 PM10 Minor Source Baseline Dates

County Minor Source Baseline Date Facility Triggering MiSBD

Koochiching 1991 Boise Cascade

St. Louis 1979 Potlatch (Cook, MN)

Lake 1999 Cyprus Northshore Mining

Cook Not applicable No major modifications

Source: http://www.pca.state.mn.us/air/modeling.html#psd

S6.2.2 Area and Mobile Sources

The April 2006 FLM guidance suggests that area and mobile sources be considered in the cumulative

increment assessment. The magnitude of PM10 emissions from these sources is quite small in the region

around the Class I areas, compared to the major industrial sources. Further, it is likely that area and mobile

sources have declined since the minor source baseline trigger date. According to the U.S. Census Bureau

(censtats.census.gov for 1979 data and www.fedstats.gov for 2004 data), the population in all of the

nearby counties except for Cook has decreased since 1979, as shown in Table S6-3. Although there has

been a small population increase in Cook County, the overall population in the region has decreased by

over 10%.

http://www.fedstats.gov/

30

Table S6-3 U.S. Census Bureau County Population Data

County 1979 Pop. 2004 Pop.

Koochiching 17,500 13,900

St. Louis 221,000 198,000

Lake 12,900 11,200

Cook 4,100 5,300

Total 255,500 228,400

Based on this information, no increase in emissions from area and mobile sources has likely occurred and

therefore, they were not included in the increment assessment. Actual emissions from area and mobile

sources have probably decreased but were not included as an increment expanding reduction.

S6.2.3 New Sources in Inventory

The following permitted new sources are included in the emission inventory in addition to the Project:

Essar Steel

This facility/project has been permitted but has not begun operation, so the increment consumption for

this source was based on permitted emissions. The emissions inventory used as a basis was prepared by

MPCA (July 19, 2016, revision).

S6.3 Increment Modeling Results

Modeled air concentrations from Project emissions and nearby sources compared to the Class I PSD

increment are presented in Table S6-1 and Table S6-4. Modeled concentrations are also shown in

Large Figure S-2. Overall, the CALPUFF modeling indicates that the emissions associated with the Project

will not deteriorate the air quality significantly in the four modeled Class I areas, because modeled

concentrations are well below the PSD Class I Increment.

The cumulative Class I increments are evaluated only for those pollutant/averaging period combinations

which modeled above the SIL based on Project emissions. If the cumulative increment modeling shows

modeled impacts above the increment, and if the Project contribution to that impact is less than the SIL,

then the Project is not considered to significantly contribute to the modeled levels above the increment

(i.e., the Project is not identified as contributing to levels above the thresholds).

The increment modeling results indicate that the full increment has not been consumed. Considering both

increment consuming emission increases and increment expanding emission decreases, the maximum

modeled increment consumption in the BWCAW is 1.93 µg/m3, and in Voyageurs is 1.20 µg/m3 for historic

projects based on the inventory obtained from MPCA plus the impacts from the Project taken from the SIL

runs (i.e., high first high results). The analysis modeled receptors in the BWCAW and Voyageurs, and

31

showed no projected exceedances of the increment. Therefore, increment limits will not be modeled at

levels above the thresholds due to the Project.

Table S6-4 Cumulative 24-hour PM10 Increment Modeling Summary

Pollutant Averaging Period

PSD Class I

Increment

(µg/m3)

Modeled Results

BWCAW

(µg/m3)

Voyageurs

National Park

(µg/m3)

PM10 24-hour 8 1.95 1.20

32

S7.0 Summary and Conclusions – Class I Areas and

Impacts to Air Quality Related Values (AQRVs)

and Increment

Four Class I areas were assessed for potential impacts from the Project emissions: BWCAW, Isle Royale

National Park, Rainbow Lake Wilderness, and Voyageurs National Park. The modeling results show that

the Project at Hoyt Lakes, Minnesota will not cause significant deterioration of air quality in these areas.

PolyMet will install suitable pollution control equipment for point sources as described in the air permit

application (Appendix B). In addition, PolyMet has agreed to install emission controls in the Crushing Plant

and Concentrator consistent with the best controls currently used in the metallic ore processing industries

for fine particulates to address specific regulator concerns. The hydrometallurgical process does not use

continuously operating combustion sources. Therefore, NOX emissions are mostly due to heating. Small

amounts of SO2 are emitted by the process but controlled potential emissions are below the significant

level of 40 tons per year.

In order to reduce modeled impacts from natural gas fired space heaters, PolyMet has committed to

upgrade the insulation in the existing Crusher and Concentrator Buildings and to purchase low-NOX space

heating equipment such that overall NOX emissions will be reduced by at least 50% below NOX emissions

from conventional equipment.

The mine vehicles and locomotives were also included in the emission inventory for the Class I AQRV

modeling. The equipment utilized for the Project mining operation will meet Tier 4 standards. Maximum

modeled fuel consumption was modeled to conservatively capture impact from the Project.

The Class I modeling also includes the construction equipment used at the Tailings Basin. The emissions

from the Tailings Basin construction fleet are based on the currently available equipment configurations,

which are at Tier 4 emissions levels.

PolyMet and their contractors will not use any fuel with greater than 15 parts per million sulfur in the mine

vehicles, locomotives, or Tailings Basin construction equipment.

Modeled impacts were compared to PSD Class I increment values and AQRVs, flora and fauna impacts,

deposition, and visibility impacts. The CALPUFF Modeling System was used to assess impacts.

PM10 increment modeling was conducted and the results show that increment consumption is

below the allowable value.

No adverse impact on flora and fauna is expected.

Deposition values were below the acceptability thresholds set by the USFS and National Park

Service. Therefore, no adverse impact on terrestrial and aquatic ecosystems is expected.

33

When compared to pristine conditions, the Project has no days with a change in extinction

greater than 5% at Voyageurs or Isle Royale.

Using current modeling guidance (Method 8), the 98th percentile days for each modeled year

have a change in extinction of less than 5% at the BWCAW. These visibility modeling results meet

the current FLM criteria for demonstrating no adverse impacts.

34

S8.0 References

1. Minnesota Department of Natural Resources, U.S. Army Corps of Engineers and U.S. Forest

Service. Final Environmental Impact Statement: NorthMet Mining Project and Land Exchange. November

2015.

2. Adams, et al. Screening Procedures to Evaluate Effects of Air Pollution on Eastern Wildernesses Cited

as Class I Air Quality Area. USDA, Forest Service, Northeast Forest Experiment Station, General Technical

Report NE-151. September 1991.

3. U.S. Environmental Protection Agency Office of Air Quality Planning and Standards. Interagency

Workgroup on Air Quality Modeling (IWAQM) Phase 2 Summary Report and Recommendations for

Modeling Long Range Transport Impacts. December 1998. EPA-454/R-98-019.

4. Federal Land Managers’ Air Quality Related Values Workgroup (FLAG). Phase I Report. December

2000.

5. —. Phase I Report Revised. November 10, 2010.

6. Baumann, Suzanne (MPCA). Email to Kevin Pylka of PolyMet Mining Inc and Pat Sheehy of Barr

Engineering Co. [Electronic Mail communication] May 4, 2012.

7. National Park Service U.S. Department of the Interior. Federal Land Managers’ Interagency

Guidance for Nitrogen and Sulfur Deposition Analyses (Natural Resource Report NPS/NRSS/ARD/NRR—

2011/ 465). November 2011.

8. Pratt, et al. Estimation of dry deposition of inorganics using filter pack data and inferred deposition

velocity. Environmental Science and Technology. 1996. 30:2168-2177.

9. U.S. Environmental Protection Agency Office of Air Quality Planning and Standard. EPA Guideline

for Air Quality Maintenance Planning and Analysis. October 1977. Vol. 10 (revised). EPA-450/4-77-001.

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Class I Modeling RegionModeled Class I Areas

Area PolyMet ControlsDNR Mine Features, 2015 PROJECT LOCATION

NorthMet ProjectPoly Met Mining Inc.

Large Figure S1Class I Area Air Dispersion Modeling

Service Layer Credits: Source: Esri, DigitalGlobe, GeoEye, i-cubed, Earthstar Geographics, CNES/Airbus DS, USDA, USGS, AEX, Getmapping, Aerogrid, IGN, IGP, swisstopo, and the GIS User Community

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Area PolyMet ControlsDNR Mine Features, 2015 PM10 INCREMENT MODELING RESULTS

NorthMet ProjectPoly Met Mining Inc.

Large Figure S2Class I Area Air Dispersion Modeling

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Attachments

Attachment S1

Class I Modeling Protocol

Class I Area Air Dispersion Modeling Protocol

4300 MarketPointe Drive, Suite 200

Minneapolis, MN 55435

952.832.2600

www.barr.com


NorthMet Project

Prepared for

Poly Met Mining Inc.

June 2016

P:\Mpls\23 MN\69\2369862\WorkFiles\WO 009 Air\Class I Area Modeling\Protocol_Update_v5\Class_I_Area_Air_Dispersion_Modeling_Protocol_v6

JUN2016.docx

i


June 2016

Contents

1.0 Introduction ........................................................................................................................................................................... 1

1.1 Background ....................................................................................................................................................................... 1

1.2 Project Description ......................................................................................................................................................... 1

1.3 Purpose of Protocol ....................................................................................................................................................... 1

2.0 CALMET Settings .................................................................................................................................................................. 3

2.1 Meteorological Data Preprocessing ........................................................................................................................ 3

2.1.1 Surface Data ................................................................................................................................................................ 3

2.1.2 Upper Air Data ............................................................................................................................................................ 3

2.1.3 Precipitation Data ...................................................................................................................................................... 3

2.2 Geophysical Data Preprocessing .............................................................................................................................. 3

2.2.1 Land Use Data ............................................................................................................................................................. 4

2.2.2 Terrain Data ................................................................................................................................................................. 4

2.3 CALMET Control File Input Groups .......................................................................................................................... 4

2.3.1 Input Group 1 – General Run Control Parameters ....................................................................................... 4

2.3.2 Input Group 2 – Map Projection and Grid Control Parameters .............................................................. 4

2.3.3 Input Group 3 – Output Options ......................................................................................................................... 5

2.3.4 Input Group 4 – Meteorological Data Options.............................................................................................. 5

2.3.5 Input Group 5 – Wind Field Options and Parameters ................................................................................ 5

2.3.6 Input Group 6 – Mixing Height, Temperature, and Precipitation Parameters .................................. 6

2.3.7 Input Group 7 – Surface Meteorological Station Parameters .................................................................. 6

2.3.8 Input Group 8 – Upper Air Meteorological Station Parameters ............................................................. 7

2.3.9 Input Group 9 – Precipitation Station Parameters ....................................................................................... 7

3.0 CALPUFF Settings ................................................................................................................................................................ 8

3.1 Input Group 1 – General Run Control Parameters ............................................................................................ 8

3.2 Input Group 2 – Technical Options .......................................................................................................................... 8

3.3 Input Group 3 – Species List ....................................................................................................................................... 8

3.4 Input Group 4 – Map Projection and Grid Control Parameters ................................................................... 8

3.5 Input Group 5 – Output Options .............................................................................................................................. 8

3.6 Input Group 6 – Subgrid Scale Complex Terrain Inputs .................................................................................. 8

ii

3.7 Input Group 7 – Chemical Parameters for Dry Deposition of Gases .......................................................... 9

3.8 Input Group 8 – Size Parameters for Dry Deposition of Particles ............................................................... 9

3.9 Input Group 9 – Miscellaneous Dry Deposition Parameters ......................................................................... 9

3.10 Input Group 10 – Wet Deposition Parameters .................................................................................................... 9

3.11 Input Group 11 – Chemistry Parameters ............................................................................................................... 9

3.12 Input Group 12 – Miscellaneous Dispersion and Computational Parameters ....................................... 9

3.13 Input Group 13 – Point Source Parameters.......................................................................................................... 9

3.14 Input Group 14 – Area Source Parameters .........................................................................................................10

3.15 Input Group 15 – Line Source Parameters ..........................................................................................................10

3.16 Input Group 16 – Volume Source Parameters ..................................................................................................10

3.17 Input Group 17 – Non-Gridded (Discrete) Receptor Information .............................................................10

4.0 Post-processing Analysis ................................................................................................................................................12

5.0 Reporting ..............................................................................................................................................................................13

5.1 Visibility.............................................................................................................................................................................13

5.2 Deposition .......................................................................................................................................................................13

5.3 Direct Foliar Damage ...................................................................................................................................................13

5.4 Increment .........................................................................................................................................................................14

6.0 References ............................................................................................................................................................................16

iii

List of Tables

Table 1 Modeling Projection Parameters .................................................................................................................. 5

Table 2 Wind Field Model Parameters and Input Values .................................................................................... 6

Table 3 Mixing Height, Temperature, and Precipitation Model Parameters and Input Values ........... 6

Table 4 Background Concentrations ........................................................................................................................ 14

Table 5 Regulatory Concentration Standards for Class I Areas ..................................................................... 14

List of Large Figures

Large Figure 1 Class I Modeling Region

List of Appendices (provided electronically)

Appendix A CALMET Input Control File

Appendix B CALPUFF Input Control File

Appendix C CALPOST Input Control Files

1

1.0 Introduction

1.1 Background

Poly Met Mining Inc. (PolyMet) proposes to reactivate and modify portions of the former LTV Steel Mining

Company Taconite Processing Plant (Plant Site) in Hoyt Lakes, Minnesota for the processing of ore from

the NorthMet deposit located approximately 8 miles east of the Plant Site. The proposed project is

referred to as the NorthMet Project (Project).

This protocol addresses the dispersion modeling procedures that will be followed for the Class I Area air

quality analysis to be conducted in support of the Project’s air permit application. Other analyses required

for the permit application (e.g., Class II Area analysis) are not addressed in this protocol, but the results of

any additional analyses will be available for interested parties to review.

PolyMet proposes to permit the Project as a synthetic minor source for federal Prevention of Significant

Deterioration (PSD) purposes. However, in general, the same procedures that would be used to assess

Class I Area impacts from a PSD major project will be used to aid in evaluation of the air permit

application.

1.2 Project Description

A comprehensive description and analysis of the Project are provided in the NorthMet Project Description

(Reference (1)). Although the Project is presently well-defined, some design details and specific equipment

selections are not yet finalized. Conservative assumptions will be made where there is uncertainty in the

Project such that modeled impacts based on the final details will be equivalent to or less than those

evaluated in the air permit application.

1.3 Purpose of Protocol

The purpose of this protocol is to establish procedures for evaluating the Project’s impact on nearby Class

I Areas (as shown on Large Figure 1) for the air permit application.

Class I Areas are overseen by Federal Land Managers (FLMs) from the following organizations:

The National Park Service (NPS): Isle Royale National Park and Voyageurs National Park

The U.S. Forest Service (USFS): Rainbow Lake Wilderness and the Boundary Waters Canoe Area

Wilderness (BWCAW)

Given the proximity of the Project to Class I Areas (Large Figure 1), an assessment of impacts to the Class I

Areas was required for the Project’s Draft Environmental Impact Statement (DEIS) published in October

2009; a revised impact assessment was submitted in May 2012 in support of the Supplemental Draft

Environmental Impact Statement (SDEIS). Previous modeling will be updated to reflect changes to the

Project, applicable model versions, and applicable guidance.

2

The original modeling protocol prepared for the Project DEIS, as well as the protocols of subsequent

projects in the region, were used as a guide in preparing this protocol. CALMET-specific settings were

based on the most recent guidance from FLMs (Reference (2)).

The protocol contains separate sections for the main components of the CALPUFF modeling system:

Section 2.0 presents the development of CALMET input files; Section 3.0 presents the model options for

CALPUFF execution; Section 4.0 describes post-processing to determine impacts to the Class I Areas; and

Section 5.0 describes reporting of the results.

3

2.0 CALMET Settings

The CALMET meteorological model requires input from several meteorological and geophysical data

preprocessors prior to model execution. This section describes the data sources, preprocessing

methodology, and CALMET model settings that will be used for the Project.

The CALMET input files will include SURF.DAT, GEO.DAT, PRECIP.DAT, MM4/MM5 data files, and upper air

data files for the years 2002, 2003, and 2004. Compilation of these input files will be completed with

approved preprocessors from the CALPUFF software suite (CALMET v5.8.4) and associated preprocessors.

Some compilation will be completed by the CALPUFF View program by Lakes Environmental.

2.1 Meteorological Data Preprocessing

The meteorological data for CALMET consists of three years (2002, 2003, and 2004) of MM5 prognostic

mesoscale meteorological data with surface, upper air, and precipitation data from several stations in and

around the modeling domain. These stations are depicted on Large Figure 1.

2.1.1 Surface Data

Surface data will be obtained from the National Climatic Data Center (NCDC). Initial preprocessing will be

performed on the surface files with Russell Lee’s program, NCDC_CNV (rflee.com). This program converts

the files to SAMSON format, which is compatible with the SMERGE preprocessor. Once all files are in a

compatible format, SMERGE will combine the individual surface data files into yearly SURF.DAT files for

input to CALMET.

2.1.2 Upper Air Data

Upper air data files will be obtained from the National Oceanic and Atmospheric Administration (NOAA)

Earth Systems Research Lab (ERSL) RAOBS website (esrl.noaa.gov/raobs/). These files will be processed

within the Lakes Environmental CALPUFF View interface using READ62. Quality processing will then be

done using the FIX program, also within the CALPUFF View interface. FIX incorporates station substitution,

extrapolation, spatial substitution, and temporal substitution to complete the data files. Extrapolation and

station substitution will be favored when possible. After preprocessing with READ62 and FIX, the upper air

data files (one per station per year) will be inputted to CALMET.

2.1.3 Precipitation Data

The PRECIP.DAT file required by CALMET contains all precipitation observations for the modeling domain.

Precipitation data files will be obtained from the NCDC. The files will then be processed within the

CALPUFF View program by the PMERGE preprocessor, yielding the PRECIP.DAT file.

2.2 Geophysical Data Preprocessing

Land use data files and elevation data files are required to develop the GEO.DAT geophysical data file

required by CALMET. The MAKEGEO preprocessor will be used to combine a land use data file (LU.DAT)

with a terrain elevation file (TERREL.DAT) to create the GEO.DAT file.

4

2.2.1 Land Use Data

Because Composite Theme Grid (CTG) land use data files are not available for Canadian portions of the

modeling domain, the land use will be set using the North American Land Cover Characteristics database.

The CTGCOMP preprocessor will combine the land use files into the LU.DAT file required by the MAKEGEO

preprocessor.

2.2.2 Terrain Data

Elevation data files will be created from the appropriate Digital Elevation Model (DEM) files. The DEM files

will be obtained from the WebGIS website, hosted by Lakes Environmental, and the GeoBase website,

hosted by Environment Canada. The DEM files will be of 1:250,000 resolution. The TERREL preprocessor

will create the TERREL.DAT file required by the MAKEGEO preprocessor.

2.3 CALMET Control File Input Groups

Each CALMET input group is detailed separately. A preliminary version of the CALMET control file is

included as Appendix A.

2.3.1 Input Group 1 – General Run Control Parameters

Run start date and length will vary with the year being modeled. These will include all available dates from

2002, 2003, and 2004 and 1-month data lengths.

The run type will be set to 1 for computation of wind fields and micrometeorological variables (IRTYPE =

1). The special data fields for CALGRID will be calculated (LCALGRID = T). Initial setup of the model will be

performed with ITEST = 1 with the final runs including the computational phase (ITEST = 2). The check for

conformity with regulatory values will be used (MREG = 1).

2.3.2 Input Group 2 – Map Projection and Grid Control Parameters

The Lambert Conformal Conic (LCC) coordinate system will be used for the model, as summarized in

Table 1. The projection origin will be 47N, 93W with false easting and northing of 0. The matching

parallels of latitude will be 30N and 60N. The datum region used will be the WGS 84 GRS 80 Spheroid,

global coverage.

5

Table 1 Modeling Projection Parameters

Lambert Conformal Conic (LCC) Projection

Projection Origin

Latitude 47.00N

Longitude 93.00W

False Easting 0

False Northing 0

Parallels of Latitude Parallel Latitude 1 30.00N

Parallel Latitude 2 60.00N

Datum WGS-84

Grid Dimensions Number of X grid cells 132

Number of Y grid cells 90

Grid Spacing 4 km

Grid Corner Reference X coordinate -140

Y coordinate -100

The rectangular grid defining the domain will be 528 km by 360 km with a grid spacing of 4 km. The

reference grid coordinate for the southwest corner of the grid will be (-140, -100) km. The vertical grid will

consist of 10 layers, with face heights of 0, 20, 40, 80, 160, 320, 640, 1,200, 2,000, 3,000, and 4,000 meters.

2.3.3 Input Group 3 – Output Options

All variables in Input Group 3, except NZPRN, will be set to the default values in conformance with EPA-

FLM guidance (NZPRN = 0).

2.3.4 Input Group 4 – Meteorological Data Options

The modeling will incorporate meteorological data from surface stations, precipitation stations, upper air

stations, and MM4/MM5 data sets (NOOBS = 0). The number of stations available for use varies slightly

by year. For this analysis, there will be approximately 88 surface stations (NSSTA = 88), 99 precipitation

stations (NPSTA = 99), and 5 upper air stations. No cloud data will be used. The default file formats will be

used for meteorological inputs.

2.3.5 Input Group 5 – Wind Field Options and Parameters

The wind field options will be set to the default values, except the parameters listed in Table 2.

6

Table 2 Wind Field Model Parameters and Input Values

Model Parameter Model Input Value

Extrapolation of surface winds will be allowed at all surface stations. RMIN2 = -1

Prognostic wind fields from the MM5 data sets will be used for the initial guess

field. IPROG = 14 (MM5)

The maximum radius of influence (ROI) settings will be 100 km over land in the

surface layer, 200 km over land aloft, 200 km over water, and 15 km for terrain

features.

RMAX1 = 100

RMAX2 = 200

RMAX3 = 200

TERRAD = 15

The relative weighting of the first guess field versus surface observations will be

50 km. R1 = 50

The relative weighting of the first guess field versus aloft observations will be 100

km. R2 = 100

The relative weighting of the prognostic wind field data will be 0 km. RPROG = 0

The surface meteorological station used for surface temperature will be the

Hibbing, MN station. ISURFT = Hibbing, MN

The upper air station used for domain-scale lapse rate will be International Falls,

MN. IUPT = International Falls, MN

2.3.6 Input Group 6 – Mixing Height, Temperature, and Precipitation Parameters

The parameters for Input Group 6 will be set to the default values, except the parameters in Table 3.

Table 3 Mixing Height, Temperature, and Precipitation Model Parameters and Input

Values

Model Parameter Model Input Value

The over water temperature interpolation scheme requires at least one over water

meteorological file with complete coverage of the modeled time period. Continuous

over water data are not available for Lake Superior because Great Lakes monitoring

buoys are removed for the winter season. The over water interpolation scheme will

not be used.

JWAT1 = 55

JWAT2 = 55

Maul-Carson mixing height will be used for land cells only. Offshore and Coastal

Dispersion Model (OCD) mixing height will be used over water. IMIXH = -1

The threshold buoyancy flux required to sustain convective mixing height growth

over land will be 0. THRESHL = 0.0

Over water surface fluxes will use the original deltaT method. ICOARE = 0

2.3.7 Input Group 7 – Surface Meteorological Station Parameters

Surface weather observations will be obtained from several locations around and in the modeling domain,

as shown in Large Figure 1.

7

2.3.8 Input Group 8 – Upper Air Meteorological Station Parameters

Upper air observations will be obtained from stations at International Falls, MN; Minneapolis, MN;

Aberdeen, SD; Gaylord, MI; and Green Bay, WI. Upper air stations are shown in Large Figure 1.

2.3.9 Input Group 9 – Precipitation Station Parameters

Precipitation observations will be obtained from several locations around and in the modeling domain, as

shown in Large Figure 1.

8

3.0 CALPUFF Settings

The CALPUFF model grid will be the same as that used for the CALMET model. A preliminary CALPUFF

control file is included in Appendix B. The current version of the CALPUFF software suite (CALPUFF v5.8.4)

will be used for the modeling.

3.1 Input Group 1 – General Run Control Parameters

Restart files will be active during CALPUFF runs in order to write a restart file throughout the run, which

allows resumption of processing in the event of an error. The restart file includes all puffs that are on the

grid at the end of the run; therefore, a restarted run begins with the grid in the exact condition when the

previous run left off.

3.2 Input Group 2 – Technical Options

All variables in Input Group 2 will be set to the default values with the exception of the chemical

mechanism flag, which will compute transformation internally (MCHEM = 1) for the runs assessing the Air

Quality Related Values (AQRVs). No internal chemistry calculation will be used for the Significant Impact

Level (SIL) analysis runs (MCHEM = 0).

3.3 Input Group 3 – Species List

Species modeled in CALPUFF include sulfate (SO4), sulfur dioxide (SO2), nitrate (NO3), nitric acid (HNO3),

nitrogen oxides (NOX), particulate matter with an aerodynamic diameter < 10 µm (PM10), fine particulate

matter with an aerodynamic diameter < 2.5 µm (PMF), coarse particulate matter with an aerodynamic

diameter > 2.5 µm and < 10 µm (PMC), elemental carbon (EC), and organic carbon (OC) as secondary

organic aerosol (SOA). The species SO2, SO4, NOX, PM10, PMF, PMC, EC, and SOA will be modeled as

emitted. NO3 and HNO3 will be included as non-emitted species, as they result from chemical

transformations when SO2 and NOX emissions are processed by the model. Dry particle deposition will be

modeled for SO4, NO3, PM10, PMF, PMC, EC, and SOA. Dry gas deposition will be modeled for the species

SO2, HNO3, and NOX. OC will be represented in the CALPUFF and CALPOST modeling as SOA. To reflect

the representation of SOA for OC, the extinction coefficient of SOA will be set to 4 in CALPOST.

3.4 Input Group 4 – Map Projection and Grid Control Parameters

The map projection will be the same as for CALMET (refer to Section 2.3.2). Grid corner indices are shown

in Table 1.

3.5 Input Group 5 – Output Options

Variables for Input Group 5 will be set to the default values.

3.6 Input Group 6 – Subgrid Scale Complex Terrain Inputs

No complex terrain features will be modeled. Variables for Input Group 6 will be set to the default values.

9

3.7 Input Group 7 – Chemical Parameters for Dry Deposition of

Gases

The dry deposition parameters for NOX, SO2, and HNO3 will be set to the values provided in Appendix B.

3.8 Input Group 8 – Size Parameters for Dry Deposition of Particles

The size parameters for NO3, SO4, PM10, PMF, PMC, EC, and OC will be set to the values provided in

Appendix B.

3.9 Input Group 9 – Miscellaneous Dry Deposition Parameters

The miscellaneous dry deposition parameters will be set to the default values provided in Appendix B.

3.10 Input Group 10 – Wet Deposition Parameters

Wet deposition parameters for SO2, SO4, NO3, HNO3, PM10, PMC, PMF, EC, and OC will be set to the values

provided in Appendix B.

3.11 Input Group 11 – Chemistry Parameters

Most parameters in Input Group 11 will be set to the default values. An OZONE.DAT file will contain data

from several representative monitoring stations throughout the modeling domain. The default ozone

concentration will be set to 40 ppm to reflect the average conditions in the domain. This concentration

will be used when no data is available for any observation stations. The monthly ammonia (NH3)

concentration will be set to 1 ppb during all months for initial modeling for a conservative estimate of

background NH3 concentrations. Refinement of background NH3 concentrations may be necessary as

modeling progresses. A monthly background concentration of 1 ppb will also be used for H2O2.

3.12 Input Group 12 – Miscellaneous Dispersion and Computational

Parameters

Variables pertaining to the use of a single meteorological station will not be used. Variables in this group

will be set to the default values.

3.13 Input Group 13 – Point Source Parameters

Emission rates and stack parameters used in the modeling will be based on the updated air permit pre-

application emission inventory submitted on March 29, 2016 or subsequent revisions, if necessary. The

emission rates and stack parameters used in the modeling will be detailed in the Class I Areas modeling

report.

Backup generators and fire pumps will not be included in the modeling because they will only be

operated occasionally for testing or during emergency situations. During such emergencies, emission

generating activities will be stopped or significantly curtailed.

10

For speciation of pollutants, the analysis will use a combination of information from AP-42, stack test data,

process flow simulations, and other available data sources. PM handling sources will be speciated into

PMC and PMF. Combustion PM10 emissions will be divided into PMC, PMF, OC, SOA, SO4, and

EC. Speciation is expected to utilize the same methodology as previous Project modeling efforts. Final

speciation data will be provided with the modeling report. Sulfuric acid mist will be modeled as SO4.

Changes may be made to the speciation calculations as modeling progresses.

Any restrictions on point source operations included in the Class I modeling will be described in the

modeling report and reflected in the proposed compliance plan in the air emission permit application for

the Project.

3.14 Input Group 14 – Area Source Parameters

No area sources will be modeled. This input group will not contain any variables for input to the model.

3.15 Input Group 15 – Line Source Parameters

No line sources will be modeled. This input group will not contain any variables for input to the model.

3.16 Input Group 16 – Volume Source Parameters

Fugitive sources for the Project will not be modeled. Given the nature of the sources (low release height,

no upward momentum), emissions are not expected to reach the Class I Areas. These fugitive sources

include dust generated from traffic on unpaved roads, outdoor conveyor transfer points, other outdoor

handling such as transfer to stockpiles, rail loading operations, and truck unloading operations.

Several volume sources will be modeled to represent the exhaust emissions from haul trucks, trains, and

other equipment used for mining operations, tailings dam construction, and the transportation of ore to

the Plant Site. Volume sources will cover the general operating areas of the diesel equipment. Previous

modeling assessed four different fleet operation scenarios based on expected changes in fleet makeup

and utilization throughout the life of the Project. One combined scenario is proposed for the updated

modeling. All fleet vehicles will meet Tier 4 requirements, so modeling the maximum fuel usage for the

Tailings Basin construction vehicles activities and the heavy mining equipment in a single run will evaluate

maximum Project emissions.

Any restrictions proposed for mining or Tailings Basin construction equipment in the Class I modeling will

be described in the modeling report and in the proposed compliance plan included with the air emission

permit application for the Project.

3.17 Input Group 17 – Non-Gridded (Discrete) Receptor Information

Discrete receptors for each Class I Area were obtained from the NPS website using the NPS Convert Class

I Areas DotNet utility. The receptors for Voyageurs National Park, Isle Royale National Park, Rainbow Lake

Wilderness, and the BWCAW will encompass the areas shown on Large Figure 1. The coordinates of these

11

receptors can be found in Appendix B. The receptors included in the modeling consist of the four Class I

Areas in the region.

12

4.0 Post-processing Analysis

CALPOST analysis will be conducted for PMF, PMC, PM10, SO2, SO4, NO3, HNO3, NOX, EC, and OC.

CALPOST will convert the hourly concentration files generated by CALPUFF and the monthly average

relative humidity data into 24-hour time-averaged extinction coefficients.

Prior to calculation of Project impacts with CALPOST, the POSTUTIL post-processor will be used in three

capacities. The nitrate repartitioning option will be used (MNITRATE = 1), with an NH3 concentration

matching the data used in the CALPUFF run (1 ppb). POSTUTIL will then sum the components of PM10 for

calculation of total PM10 (PMC + PMF + EC + OC). POSTUTIL will also sum the total deposition of nitrogen

(N) and sulfur (S), with mappings as follows:

N deposition = (SO4 * 0.291667) + (NOX * 0.304348) + (HNO3 * 0.222222) + (NO3 * 0.451613)

S deposition = (SO2 * 0.5) + (SO4 * 0.333333)

Multiple CALPOST runs will be conducted to calculate the Project impacts on each Class I Area. Values will

be calculated for visibility, acid deposition, foliar damage, and increment consumption. Visibility runs will

be run independently for each Class I Area to maintain clarity of results. The 24-hour time-averaged

extinction coefficients generated by CALPOST will be compared to 20% best natural conditions (using

Method 8) as part of the visibility analysis. Appendix C contains a sample CALPOST control file.

13

5.0 Reporting

The Class I Area dispersion modeling analysis will be made available for review by the FLMs, along with

the Minnesota Pollution Control Agency (MPCA) who, as the permitting authority, will assess air quality

impacts of the Project. The analysis will demonstrate attainment of the Class I Area increments for all

appropriate pollutants and averaging times. PM10, SO2, and NOX will be modeled to support the visibility

analysis. The modeled emissions associated with the Project will be compared with the SILs and Class I

Area increment standard. The cumulative increment consumption will be analyzed for pollutants and

averaging times for which the model results are greater than the SIL.

A summary of the Class I Area analysis, including electronic copies of the model input and output files, will

be submitted to the MPCA and FLMs. Evaluation of visibility impacts, acid deposition, direct foliar damage,

and increment consumption will be reported. These evaluations will be compared to applicable standards,

as detailed in Sections 5.1 through 5.4.

5.1 Visibility

Visibility calculations will be performed with CALPOST. The visibility calculations will be compared to

background conditions to determine the percent change in extinction coefficient over 24-hour averaging

periods. Modeled visibility impacts will be compared to the hypothetical natural background conditions

(20% best days background extinction coefficients) as developed by the FLMs (Reference (3)).

5.2 Deposition

Acid deposition rates associated with the emissions from the Project will be evaluated. Prior analyses of

Project impacts predated the development of a common deposition screening approach, with differing

methods used by NPS and USFS. A common screening threshold has since been developed. The

Deposition Analysis Threshold (DAT) for the Class I Areas being assessed is 0.01 kg/ha/yr each for the

total N and total S deposition. According to the Federal Land Managers’ Air Quality Related Values Work

Group Phase I Report (Reference (4)), “…[I]f the new or modified source has a predicted N or S deposition

impact below the respective DAT, the FLM will consider that impact to be negligible, and no further

analysis would be required for that pollutant.”

5.3 Direct Foliar Damage

”Green line” thresholds are defined for atmospheric concentrations of SO2 and ozone. The green line

threshold is the concentration below which no adverse impact is expected (Reference (5)). The green line

concentrations of SO2 are 100 µg/m3 for the 3-hour average concentration and 5 µg/m

3 for the annual

average concentration. The green line ozone concentration during the growing season is 80 µg/m3 for the

second highest hourly concentration. The proposed modeling will generate the values needed for SO2

concentrations but not ozone concentrations. A qualitative discussion on ozone formation was included in

the Plant Site Class II Air Quality Dispersion Modeling Report (Reference (6)) prepared to support the

SDEIS. This analysis will be updated as needed in support of the air permit application. Background

14

concentrations that will be added to the model results for comparison to green line concentrations are

listed in Table 4.

Table 4 Background Concentrations

Parameter

Averaging

Period

Background

Concentration

(µg/m3) Data Source


SO2 Concentration

Annual 0.7 1991 through 1993 data from Sullivan Bay site

3-hour 6.3 Calculated from above per EPA guidance


SO2 Concentration

Annual 2.0 1991 through 1993 data from Finland site

3-hour 18 Calculated from above per EPA guidance

Rainbow Lake Wilderness

SO2 Concentration

Annual 1.6 1991 through 1993 data from Sandstone site


BWCAW

SO2 Concentration

Annual 1.2 1991 through 1993 data from Ely site


5.4 Increment

The modeled concentrations of SO2, PM10, and NO2 will be compared to both the Class I PSD increment,

as required by 40 Code of Federal Regulations (CFR) 52.21, and the EPA SIL concentrations detailed in

Reference (7). These values are summarized in Table 5.

Table 5 Regulatory Concentration Standards for Class I Areas

Pollutant

Averaging

Period

PSD Increment(1)

(µg/m3)

EPA SIL(2)

(µg/m3)

PM10 Annual 4 0.2

24-hour 8(3)

0.3

SO2

Annual

2 0.1

24-Hour

5(3)

0.2

3-hour 25(3)

1

NO2 Annual 2.5 0.1

(1) 40 CFR 52.21

(2) Reference (7)

(3) Not to be exceeded more than once per year

The Class I modeling report will include figures presenting the increment modeling results for each

pollutant modeled.

For evaluation of the PM10 concentration, the model-generated concentration will only include direct

particulate emissions (PMF, PMC, EC, and OC) as part of the total PM10 concentration. Only emissions from

the Project will be included in the evaluation of the SILs. Table 5 contains the regulatory concentration

15

standards. If modeled concentrations exceed the SILs, a cumulative PSD increment modeling assessment

will be performed. Cumulative increment model setup parameters will be consistent with those from the

single source modeling above, with grid spacing increased to 12 km to maintain manageable runtimes.

EPA has promulgated a Class I increment for PM2.5. However, the minor source baseline date for this

pollutant has not yet been triggered in the Project area. Therefore, the Project, as a synthetic minor

source, does not consume PM2.5 increment and an evaluation will not be conducted at this time.

16

6.0 References

1. Poly Met Mining Inc. NorthMet Project Project Description (v9). February 2015.

2. U.S. Environmental Protection Agency. Clarification on EPA-FLM Recommended Settings for CALMET

Memorandum. August 2009.

3. Federal Land Managers’ Air Quality Related Values Workgroup (FLAG). Phase I Report Revised.

November 10, 2010.

4. National Park Service U.S. Department of the Interior. Federal Land Managers’ Interagency

Guidance for Nitrogen and Sulfur Deposition Analyses (Natural Resource Report NPS/NRSS/ARD/NRR—

2011/ 465). November 2011.

5. Adams, et al. Screening Procedures to Evaluate Effects of Air Pollution on Eastern Wildernesses Cited

as Class I Air Quality Area. USDA, Forest Service, Northeast Forest Experiment Station, General Technical

Report NE-151. September 1991.

6. Barr Engineering Co. Plant Site Class II Air Quality Dispersion Modeling Report v2 - NorthMet Project.

November 2012.

7. U.S. National Archives and Records Administration. Prevention of Significant Deterioration (PSD)

and Nonattainment New Source Review (NSR). 40 CFR Parts 51 and 52. Code of Federal Regulations. 1996.

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Appendices

See electronic media for the following:

Appendix A CALMET Input Control File

Appendix B CALPUFF Input Control File

Appendix C CALPOST Input Control Files

Protocol Addendum

Barr Engineering Co. 4300 MarketPointe Drive, Suite 200, Minneapolis, MN 55435 952.832.2600 www.barr.com

Technical Memorandum

To: Jim Sullivan

From: Pat Sheehy, Andrew Skoglund, Todd Fasking; Barr Engineering

Subject: Addendum to PolyMet 2016 Class I Area Air Dispersion Modeling Protocol

Date: July 1, 2016

Project: 23690862

c: Trent Wickman, U.S. Forest Service; Kevin Pylka, PolyMet

1.0 Overview

This addendum to the PolyMet Class I Protocol addresses comments related to the protocol, as discussed

with MPCA and the U.S. Forest Service (USFS) on June 29 and 30, 2016. The clarifications to the protocol

are described. Each comment is directly addressed even if no changes to the protocol result from the

comment. Changes to the protocol as a result of the comments are presented in Section 3.

2.0 Direct responses to comments

Comment:

1. Please confirm the proposed default ozone filling value in section 3.11 is meant to be 40 ppb (not

ppm as listed). What are levels in the hours surrounding the expected gaps to be filled?

Response:

The ozone default value listed in section 3.11 should have been listed in units of ppb (not ppm, as noted).

Potential gaps in the ozone dataset are generally wintertime with surrounding hour concentrations in the

mid to upper 30’s (ppb). Per discussion with MPCA, the proposed 40 ppb default ozone value will be

sufficient for use as the default background in the CALPUFF modeling. No separate data filling is

proposed.

Comment:

2. After consultation with the USFS, we understand that there was a question regarding the consistency

between the prior CALMET and CALPUFF vertical cell elevations and the CALMET and CALPUFF

modeling associated with the proposed protocol.

Response:

As discussed, PolyMet intends to model using the cell height value set topping out at 4000m, consistent

with current FLM guidance. Both the current protocol text in section 2.3.2 and the sample modeling

control files (App. A - CALMET & App. B - CALPUFF), as provided by Todd Fasking via email 6/17/2016, call

this out as the proposed methodology.

Earlier modeling submittals and associated protocols (circa 2008, with vertical cells topping out at 3200m)

were prepared and approved prior to the August 31, 2009 ‘EPA-FLM Recommended CALMET Input File

Values’ clarification memorandum. The current runs of CALMET and CALPUFF as proposed are consistent

with one another and the current guidance recommendation for cell heights.

To: Jim Sullivan From: Pat Sheehy, Andrew Skoglund, Todd Fasking; Barr Engineering

Subject: Addendum to PolyMet 2016 Class I Area Air Dispersion Modeling Protocol Date: July 1, 2016

Page: 2

P:\Mpls\23 MN\69\2369862\WorkFiles\APA\Permitting\Air Permitting\Class I Modeling\Addendum to class I protocol V1 D2.docx

Comment:

3. Is there more recent mesoscale meteorological data available, suitable for use in the analysis?

Response:

While there is a mesoscale met dataset potentially available for a more recent year than the existing 2002-

2004 mesoscale met dataset, discussions amongst MPCA, the USFS and Barr yielded the conclusion that

incorporating the additional year of data was unlikely to significantly change the result of the modeling,

while requiring significant additional effort for its inclusion and review. Therefore, no additional years of

mesoscale meteorological data are proposed for inclusion.

3.0 Changes to Protocol

3.1 Proposed Ozone background (section 3.11 in Protocol)

The 2016 Class I protocol as previously submitted erroneously labeled the proposed default ozone

concentration with units of ppm. The proposed default ozone value for use is 40 ppb and this will be

reflected in the Class I results report to be submitted with the permit application.

Attachment S2

MPCA Protocol Correspondence

Forms

www.pca.state.mn.us • 651-296-6300 • 800-657-3864 • TTY 651-282-5332 or 800-657-3864 • Available in alternative formats aq2-43 • 7/10/13 Page 1 of 1

AQDM-04aAQDM Protocol Approval Notification Form

Air Quality Dispersion Modeling (AQDM)

Doc Type: Air Dispersion Modeling

Instructions: This form is used for Minnesota Pollution Control Agency (MPCA) internal use by Air Dispersion Modeler and Air Permit Engineers to review for Class I Air Dispersion Modeling.

Facility Information

AQ file no.: NA AQ facility ID no.: AI 213111 Submittal date (mm/dd/yyyy): 06/27/2016

Three-letter modeling facility ID (ex., ACE, XAK, MEC, NUP, etc.): PLM

Facility name: Poly Met Mining Company

Facility street address: P.O. Box 475, 6500 County Road 666

City: Hoyt Lakes County: St. Louis State: MN Zip code: 55750-0475

Protocol prepared by: Andrew Skogland, Barr Engineering Preparer phone: 952.832.2685

Preparer e-mail address: [email protected]

Protocol Approval Notification

This is to notify you that the modeling protocol has been reviewed and is approved or denied as noted below for the project described in the protocol.

If approved, any minor changes to the project after this approval should be made in consultation with Minnesota Pollution Control Agency (MPCA) and documented in the modeling results report that is submitted with your permit application. Major changes from the protocol may result in a request for a re-submittal of the protocol.

Please be aware that federal and state standards and model versions can change over the life of a project, therefore the facility may be asked to update the modeling protocol and/or modeling report to reflect applicable changes.

Reviewer Information

Protocol reviewed:

Modeler name: Jim Sullivan Final Review date (mm/dd/yyyy): 07/19/2016

Permit engineer name: Hassan Bouchareb Final Review date (mm/dd/yyyy): 07/11/2016

Areas reviewed:

Modeler:

Engineer: Emissions information (Facility Emissions and Cumulative Class I Inventory) and general protocol setup

Modeling information (Non-emissions) Preliminary emissions

Protocol is: Approved Conditionally approved Not approved

Reasons:


AQDM-05aAQDM Protocol Review Form

for CLASS I Air Dispersion Modeling Air Quality Dispersion Modeling (AQDM)

Doc Type: Air Dispersion Modeling

Publication document #

Instructions: This form is used for Minnesota Pollution Control Agency (MPCA) internal use by Air Dispersion Modelers and Air Permit Engineers to review for Criteria Pollutant Modeling.

Protocol Information

Today’s date - Modeler (mm/dd/yyyy): 07/19/2016 Today’s date - Engineer (mm/dd/yyyy): 07/11/2016

MPCA Air Dispersion Modeler: Jim Sullivan MPCA Air Permit Engineer: Hassan Bouchareb

Air quality file number: n/a Air quality ID number: AI 213111

Three-letter modeling facility ID (ex., ACE, XAK, MEC, NUP, etc.): PMM

Facility name: Poly Met Mining Inc.

Date protocol was received at the MPCA (mm/dd/yyyy): 06/27/2016

Approval of Modeling Protocol by Sections – Completed by Air Dispersion Modeler

Section and section name Acceptable/ Unacceptable Deficiencies and/or comments

Files to accompany Protocol Acceptable Submittal is consistent with a Class I protocol review

Purpose for air dispersion modeling and related information Acceptable

Evaluation is a voluntary Class I analysis of increment and project impacts on Class I areas (Isle Royale National Park, Voyageurs National Park, Rainbow Lake Wilderness and the Boundary Waters Canoe Area Wilderness). The modeling is an update of work previously completed for the project EIS.

CALPUFF/CALMET Pre-processors and Post-processors Acceptable No further comment.

Model selection and options Acceptable No further comment.

Emission source characterizations and parameters Acceptable No further comment.

Paved roads fugitive dust Acceptable Not applicable.

Receptors Acceptable No further comment.

Meteorological data Acceptable

Meteorological data used for the Class I demonstration reflects the years 2002, 2003 and 2004. After consultation with the United State Forest Service, it was determined that the time period is reasonable for the scope of evaluation. Newer data would not change the modeled output.

SIL analysis and results Acceptable No further comment.

Background values Acceptable

Background values are relevant input parameters for Chemistry in Calpuff. Input Group 11 has identified Ammonia, Ozone and Hydrogen Peroxide. In addition, a visibility background concentration will also be included in the modeling demonstration, consistent with Federal Land Manager's approach. The demonstration will include SO2 background concentrations from ambient air quality monitor locations near the Class I areas. The background concentration is used for the direct foliar damage evaluation using the "Green Line" approach. The ambient monitors and background calculation method are acceptable for the modeling demonstration.

Nearby sources Acceptable The nearby source inventory for this project is based on a Class I


inventory developed by the MPCA and updated by Barr Engineering for this project. The facilities included in the modeling demonstration are the same for all Class I evaluations conducted in Northeastern Minnesota. See engineering review comments for specific update-related details.

Pollutant-based considerations Acceptable

Protocol noted that an ozone value of 40 ppm would be used for gap-filling of missing data. Based on a June 30, 2016, telephone conversation with Andrew Skogland, Barr Engineering, this value should be in units of ppb.

CLASS I EMISSION INVENTORY Acceptable Review of non-emission features (confirmation of spatial location and related source characterization only). No further comment.

Modeling Protocol is: Approved

Comments on approvable-status:

Approval of Modeling Protocol by Sections – Completed by Air Permit Engineer

Section and section name Acceptable/ Unacceptable Deficiencies and/or comments

Purpose for air dispersion modeling and related information Acceptable No comments.

Emission source characterizations and parameters Acceptable No comments.

Paved roads fugitive dust Acceptable Not applicable for this modeling demonstration.

Pollutant-based considerations Acceptable No comments.

CLASS I EMISSION INVENTORY Acceptable

Class I Cumulative Inventory:

- Further updates were made to the Class I Cumulative Inventory by MPCA as described in the "Revisions" tab in the provided revised version. Please use this revised version, as provided, in performing the necessary modeling exercise(s).

Mine Site Emission Inventory:

- Please include a key on the Class I modeling input tab for the less common acronyms used (PMC/PMF = condensible/filterable PM, EC = ?, SOA = Sulphates of Ammonia). This could also be a part of the "Read Me" tabs as discussed in previous preapplication meetings.

- Emissions data should be updated to reflect the correct inputs for any emission sources that were identified in the Class II modeling file comparison as non-conforming. As both the Class I and Class II files pull some information from the same facility emission inventory tabs, it would be prudent to ensure the correct information is being used in the Class I input files.

Plant Site Emission Inventory:

- Please include a key on the Class I modeling input tab for the less common acronyms used (PMC/PMF = condensible/filterable PM, EC = ?, SOA = Sulphates of Ammonia). This could also be a part of the "Read Me" tabs as discussed in previous preapplication meetings.

- Emissions data should be updated to reflect the correct inputs for any emission sources that were identified in the Class II modeling file comparison as non-conforming. As both the Class I and Class II files pull some information from the same facility emission inventory tabs, it would be prudent to ensure the correct information is being used in the Class I input files.

- Please include a note referencing the other emission sources that use an overall emission rate divided out amongst individual portions similar to the "Ore Haul Locomotive" sources' note. This scenario seems to occur for Stack ID No. 327 and Volume Source Conc B V.

Comments on other sections: No comments.

Modeling Protocol is: Approved


Comments on approvable-status:

As discussed at previous preapplication meetings, please note that any throughput limits, emission limits, or other assumptions that were used to reduce emissions (short term or long term) from any emission source below the maximum capacity of the source operating at 8760 hours per year must be included as part of a permit application. These assumptions would be included in any subsequent permit as requirements specific to the emission source(s) and should also include the associated monitoring, recordkeeping, and reporting requirements proposed to show compliance with the applicable requirement.

Approval

1

From: Sullivan, Jim (MPCA) <[email protected]>Sent: Tuesday, July 19, 2016 3:34 PMTo: Kevin Pylka ([email protected])Cc: Foss, Ann (MPCA); Baumann, Suzanne (MPCA); Sommer, Steve (MPCA); Roberson, Ruth

(MPCA); Bouchareb, Hassan (MPCA); Wickman, Trent; Andrew Skoglund; Pat Sheehy; Todd M. Fasking; Jon Bloomberg ([email protected]) ([email protected]); [email protected]

Subject: Approval of the PolyMet Class I Modeling ProtocolAttachments: aq2-43a.doc; aq2-44a.doc

Good afternoon, The Minnesota Pollution Control Agency (MPCA) has reviewed the Class I air modeling protocol for the proposed PolyMet mining operation. The protocol is approved for use. You may proceed with the Class I modeling demonstration. Please submit the final modeling demonstration report and related modeling files along with the air quality permit application. We have discussed delivery of the modeling files via a portable hard drive in light of the size of the modeling files. This is still the most viable option in light of the scope of the project. Best regards, James E. Sullivan Minnesota Pollution Control Agency Risk Evaluation and Modeling Unit 520 Lafayette Road North Saint Paul, MN 55101 (651) 757‐2769 1.800.657.3864 http://www.pca.state.mn.us

Attachment S3

Modeled Emission Rates

PMC PMF SOA EC SO2 SO4 NOX

Easting Northing X Y Hourly Annual Hourly Annual Hourly Annual Hourly Annual Hourly Annual

(m) (m) (m) (m) (m) (acfm) Note (ft) (m) (ft) (m) (m/s) (F) (K) (g/s) (g/s) (g/s) (g/s) (g/s) (g/s) (g/s) (g/s) (g/s) (g/s) (g/s) (g/s) (g/s) (g/s) (g/s) (g/s) (g/s) Notes

SV 003 SV 001 564854.9 5272663.3 62693.50 65229.60 521.5 159,000 130.0 39.62 6.5 1.98 24.341 77 298.15 0.000 0.00 0.43 0.43 0.43 0.43 0.00 0.00 0.00 0.00 0.00 0.43 0.00 0.00 0.00 1

SV 004 SV 002 564852.3 5272633.6 62691.00 65200.90 521.5 159,000 130.0 39.62 6.5 1.98 24.341 77 298.15 0.000 0.00 0.43 0.43 0.43 0.43 0.00 0.00 0.00 0.00 0.00 0.43 0.00 0.00 0.00 1

SV 401 SV 003 564853.9 5272660.2 62692.60 65226.70 521.5 30,300 130.0 39.62 3.2 0.98 19.139 77 298.15 0.000 0.00 0.08 0.08 0.08 0.08 0.00 0.00 0.00 0.00 0.00 0.08 0.00 0.00 0.00 1

SV 005 SV 005 564832.7 5272690.1 62672.10 65255.50 521.5 22,000 128.0 39.01 2.2 0.67 29.400 77 298.15 0.000 0.00 0.06 0.06 0.06 0.06 0.00 0.00 0.00 0.00 0.00 0.06 0.00 0.00 0.00 1

SV 402 SV 006 564852.0 5272662.7 62690.70 65229.00 521.5 22,000 68.0 20.73 2.7 0.82 19.520 77 298.15 0.000 0.00 0.06 0.06 0.06 0.06 0.00 0.00 0.00 0.00 0.00 0.06 0.00 0.00 0.00 1

SV 403 SV 004 564854.1 5272627.9 62692.70 65195.40 521.5 30,300 130.0 39.62 3.2 0.98 19.139 77 298.15 0.000 0.00 0.08 0.08 0.08 0.08 0.00 0.00 0.00 0.00 0.00 0.08 0.00 0.00 0.00 1

SV 404 SV 007 564848.9 5272627.8 62687.70 65195.30 521.6 22,000 128.0 39.01 2.7 0.82 19.520 77 298.15 0.000 0.00 0.06 0.06 0.06 0.06 0.00 0.00 0.00 0.00 0.00 0.06 0.00 0.00 0.00 1

SV 008 SV 008 564851.4 5272629.1 62690.10 65196.60 521.5 39,400 130.0 39.62 3.8 1.16 17.648 77 298.15 0.000 0.00 0.11 0.11 0.11 0.11 0.00 0.00 0.00 0.00 0.00 0.11 0.00 0.00 0.00 1

SV 009 SV 009 564834.5 5272690.0 62673.80 65255.40 521.4 17,400 68.0 20.73 2.5 0.76 18.007 77 298.15 0.000 0.00 0.05 0.05 0.05 0.05 0.00 0.00 0.00 0.00 0.00 0.05 0.00 0.00 0.00 1

SV 405 SV 010 564813.9 5272416.1 62653.80 64990.70 521.6 13,800 52.0 15.85 2.2 0.67 18.442 77 298.15 0.000 0.00 0.04 0.04 0.04 0.04 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 1

SV 406 SV 011 564805.8 5272416.4 62646.00 64991.00 521.6 13,800 52.0 15.85 2.2 0.67 18.442 77 298.15 0.000 0.00 0.04 0.04 0.04 0.04 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 1

SV 407 SV 014 564802.6 5272309.9 62642.80 64888.00 521.7 51,800 150.0 45.72 4.0 1.22 20.940 77 298.15 0.000 0.00 0.14 0.14 0.14 0.14 0.00 0.00 0.00 0.00 0.00 0.14 0.00 0.00 0.00 1

SV 014 SV 015 564807.3 5272310.0 62647.40 64888.10 521.7 99,800 150.0 45.72 5.8 1.78 18.992 77 298.15 0.000 0.00 0.27 0.27 0.27 0.27 0.00 0.00 0.00 0.00 0.00 0.27 0.00 0.00 0.00 1

SV 408 SV 016 564688.7 5272325.6 62532.80 64903.30 517.8 15,400 63.0 19.20 2.3 0.70 18.830 77 298.15 0.000 0.00 0.04 0.04 0.04 0.04 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 1

SV 016 SV 017 564686.9 5272304.8 62531.00 64883.10 517.7 15,400 63.0 19.20 2.3 0.70 18.830 77 298.15 0.000 0.00 0.04 0.04 0.04 0.04 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 1

SV 502 SV 019 564685.4 5272341.2 62529.50 64918.30 516.3 27,400 63.0 19.20 3.0 0.91 19.692 77 298.15 0.000 0.00 0.07 0.07 0.07 0.07 0.00 0.00 0.00 0.00 0.00 0.07 0.00 0.00 0.00 1

SV 503 SV 020 564687.0 5272365.0 62531.10 64941.40 516.2 27,400 63.0 19.20 3.0 0.91 19.692 77 298.15 0.000 0.00 0.07 0.07 0.07 0.07 0.00 0.00 0.00 0.00 0.00 0.07 0.00 0.00 0.00 1

SV 504 SV 021 564689.3 5272386.5 62533.40 64962.10 516.3 27,400 63.0 19.20 3.0 0.91 19.692 77 298.15 0.000 0.00 0.07 0.07 0.07 0.07 0.00 0.00 0.00 0.00 0.00 0.07 0.00 0.00 0.00 1

SV 505 SV 022 564691.7 5272419.0 62535.70 64993.50 516.2 27,400 63.0 19.20 3.0 0.91 19.692 77 298.15 0.000 0.00 0.07 0.07 0.07 0.07 0.00 0.00 0.00 0.00 0.00 0.07 0.00 0.00 0.00 1

SV 506 SV 023 564694.9 5272452.3 62538.80 65025.70 516.3 27,400 63.0 19.20 3.0 0.91 19.692 77 298.15 0.000 0.00 0.07 0.07 0.07 0.07 0.00 0.00 0.00 0.00 0.00 0.07 0.00 0.00 0.00 1

SV 507 SV 024 564698.1 5272486.5 62541.90 65058.70 516.2 27,400 63.0 19.20 3.0 0.91 19.692 77 298.15 0.000 0.00 0.07 0.07 0.07 0.07 0.00 0.00 0.00 0.00 0.00 0.07 0.00 0.00 0.00 1

SV 508 SV 025 564701.2 5272519.8 62544.90 65091.00 517.5 27,400 63.0 19.20 3.0 0.91 19.692 77 298.15 0.000 0.00 0.07 0.07 0.07 0.07 0.00 0.00 0.00 0.00 0.00 0.07 0.00 0.00 0.00 1

SV 509 SV 026 564702.8 5272549.2 62546.50 65119.40 519.1 36,533 63.0 19.20 3.5 1.05 19.738 77 298.15 0.000 0.00 0.10 0.10 0.10 0.10 0.00 0.00 0.00 0.00 0.00 0.10 0.00 0.00 0.00 1

SV 421 SV 027 564680.6 5272279.1 62525.00 64858.30 516.4 27,400 63.0 19.20 3.0 0.91 19.692 77 298.15 0.000 0.00 0.07 0.07 0.07 0.07 0.00 0.00 0.00 0.00 0.00 0.07 0.00 0.00 0.00 1

SV 422 SV 028 564678.0 5272247.0 62522.30 64827.30 516.6 27,400 63.0 19.20 3.0 0.91 19.692 77 298.15 0.000 0.00 0.07 0.07 0.07 0.07 0.00 0.00 0.00 0.00 0.00 0.07 0.00 0.00 0.00 1

SV 423 SV 029 564674.3 5272207.9 62518.80 64789.40 516.6 27,400 63.0 19.20 3.0 0.91 19.692 77 298.15 0.000 0.00 0.07 0.07 0.07 0.07 0.00 0.00 0.00 0.00 0.00 0.07 0.00 0.00 0.00 1

SV 424 SV 030 564670.3 5272169.8 62514.90 64752.60 516.8 27,400 63.0 19.20 3.0 0.91 19.692 77 298.15 0.000 0.00 0.07 0.07 0.07 0.07 0.00 0.00 0.00 0.00 0.00 0.07 0.00 0.00 0.00 1

SV 409 SV 013 564801.2 5272257.6 62641.50 64837.50 521.6 46,400 144.4 44.01 4.0 1.22 18.757 77 298.15 0.000 0.00 0.13 0.13 0.13 0.13 0.00 0.00 0.00 0.00 0.00 0.13 0.00 0.00 0.00 1

SV 2532 SV 035 564631.4 5271702.9 62477.20 64301.30 482.3 35,123 193.6 59.01 3.4 1.04 19.652 202.5 367.87 0.039 0.04 1.09 1.09 1.09 1.09 0.03 0.03 0.12 0.12 0.00 1.09 0.03 0.12 0.04 1

SV 8003 SV 037 564623.6 5271627.5 62469.60 64228.50 482.4 1,122 125.0 38.10 0.7 0.20 17.174 75.8 297.48 0.000 0.00 0.02 0.02 0.02 0.02 0.06 0.06 0.02 0.02 0.00 0.02 0.06 0.02 0.00 1

SV 221 SV 043 564560.6 5272350.7 62408.90 64927.50 491.4 200 86.5 26.38 0.3 0.10 11.879 120 322.04 0.000 0.00 0.04 0.04 0.03 0.03 0.00 0.00 0.00 0.00 0.01 0.03 0.00 0.00 0.00 1

SV 322 SV 049 564528.4 5271685.5 62377.60 64284.60 482.2 2,000 30.4 9.26 0.9 0.27 16.705 77 298.15 0.000 0.00 0.01 0.01 0.01 0.01 0.00 0.00 0.00 0.00 0.00 0.01 0.00 0.00 0.00 1

SV 301 SV 040 564623.7 5271703.1 62469.70 64301.60 482.3 13,500 193.6 59.01 2.4 0.73 15.034 302 423.15 0.602 0.60 0.05 0.05 0.05 0.05 0.00 0.00 0.00 0.00 0.00 0.00 0.03 0.01 0.00 0.00 0.60 2, 3, 4, 5

SV 323 SV 044 564434.0 5271684.4 62286.30 64283.50 481.9 25,000 15.4 4.68 3.1 0.95 16.718 77 298.15 0.000 0.00 0.13 0.13 0.13 0.13 0.00 0.00 0.00 0.00 0.00 0.13 0.00 0.00 0.00 1

SV 331 SV 031 564495.8 5271666.5 62346.00 64266.20 481.9 2,600 90.0 27.43 1.0 0.30 16.817 77 298.15 0.000 0.00 0.01 0.01 0.01 0.01 0.00 0.00 0.00 0.00 0.00 0.01 0.00 0.00 0.00 1

SV 332 SV 032 564495.0 5271656.4 62345.30 64256.50 481.9 2,600 90.0 27.43 1.0 0.30 16.817 77 298.15 0.000 0.00 0.01 0.01 0.01 0.01 0.00 0.00 0.00 0.00 0.00 0.01 0.00 0.00 0.00 1

SV 333 SV 033 564523.7 5271680.3 62373.10 64279.50 482.2 1,600 35.0 10.67 0.8 0.24 16.582 77 298.15 0.000 0.00 0.02 0.02 0.02 0.02 0.00 0.00 0.00 0.00 0.00 0.02 0.00 0.00 0.00 1

SV 334 SV 034 564523.7 5271676.8 62373.00 64276.20 482.1 1,600 35.0 10.67 0.8 0.24 16.582 77 298.15 0.000 0.00 0.02 0.02 0.02 0.02 0.00 0.00 0.00 0.00 0.00 0.02 0.00 0.00 0.00 1

SV 327 SV 054 564519.2 5272116.2 62368.90 64700.90 492.6 170,000 40.0 12.19 28.0 8.53 1.403 98.3 309.98 0.000 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 1

SV 327 SV 055 564519.2 5272116.2 62386.70 64699.70 492.6 170,000 40.0 12.19 28.0 8.53 1.403 98.3 309.98 0.000 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 1

SV 327 SV 056 564519.2 5272116.2 62416.00 64697.40 492.6 170,000 40.0 12.19 28.0 8.53 1.403 98.3 309.98 0.000 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 1

SV 327 SV 057 564519.2 5272116.2 62437.80 64695.10 492.6 170,000 40.0 12.19 28.0 8.53 1.403 98.3 309.98 0.000 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 1

SV 328 SV 039 564519.3 5272063.7 62368.90 64650.20 493.6 609 57.4 17.50 0.5 0.15 15.756 300 422.04 0.025 0.02 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.000 0.000 0.00 0.000 0.00 0.00 0.02 2, 3, 4, 5

SV 427 SV 060 563910.2 5270773.3 61779.70 63403.00 460.0 550 46.0 14.02 0.5 0.15 14.230 300 422.04 0.038 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.000 0.000 0.00 0.001 0.00 0.00 0.04 2, 6, 7

Area1BV SV 080 562275.8 5271257.3 60200.00 63871.40 510.1 282 66.4 20.24 0.5 0.15 7.340 350 450.00 0.193 0.19 0.01 0.01 0.01 0.01 0.00 0.00 0.00 0.00 0.0000 0.0000 0.0104 0.0000 0.0000 0.00 0.00 0.19 2, 6, 7

SV 086 SV 086 564623.8 5272341.6 62470.10 64918.70 497.1 20,000 63.0 19.20 2.7 0.81 18.146 70 294.26 0.000 0.00 0.05 0.05 0.05 0.05 0.00 0.00 0.00 0.00 0.0000 0.0000 0.0540 2, 6, 8

SV 087 SV 087 565159.2 5272700.0 62987.70 65265.10 518.9 0 30.0 9.14 0.7 0.21 0.001 70 294.26 0.000 0.00 0.01 0.01 0.00 0.00 0.00 0.00 0.00 0.00 0.0000 0.0054 0.0023 2, 6, 9

Sigma Y Sigma Z

Volume Sources (m) (m) (m) Heating PMF

CoarseCrush SV 071 564,824.8 5,272,640.1 62,664.4 65,207.3 521.6 38.4 20.0 0.9 0.063 0.06 0.01 0.01 0.01 0.01 0.00 0.00 0.00 0.00 0.0096 0.0000 0.0003 0.0069 0.0024 0.00 0.00 0.06 2, 3, 4, 5

DH SV 072 564,812.9 5,272,426.5 62,652.9 65,000.7 521.6 15.1 5.2 0.9 0.010 0.01 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.0016 0.0000 0.0000 0.0011 0.0004 0.00 0.00 0.01 2, 3, 4, 5

FineCrush SV 012 564,798.4 5,272,222.9 62,638.8 64,804.0 521.7 44.5 9.7 0.9 0.065 0.06 0.09 0.09 0.09 0.09 0.00 0.00 0.00 0.00 0.0099 0.0000 0.0791 0.0071 0.0025 0.00 0.00 0.06 2, 3, 4, 5

Conc B V SV 018 564,637.1 5,272,166.6 62,482.8 64,749.6 504.5 53.9 30.2 0.9 0.222 0.22 0.204 0.20 0.20 0.20 0.00 0.00 0.00 0.00 0.0337 0.0001 0.1708 0.0244 0.0084 0.00 0.00 0.22 2, 3, 4, 5

Flot V SV 073 564,593.4 5,272,365.4 62,440.6 64,941.8 491.4 30.3 17.0 0.9 0.022 0.02 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.0033 0.0000 0.0001 0.0024 0.0008 0.00 0.00 0.02 2, 3, 4, 5

Conc Dewa V SV 074 564,577.5 5,271,652.4 62,425.0 64,252.5 482.4 15.6 8.8 0.9 0.006 0.01 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.0010 0.0000 0.0000 0.0007 0.0002 0.00 0.00 0.01 2, 3, 4, 5

Conc LO V SV 075 564,569.8 5,271,562.7 62,417.6 64,165.8 481.7 11.1 2.0 0.9 0.002 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.0004 0.0000 0.0000 0.0003 0.0001 0.00 0.00 0.00 2, 3, 4, 5

Rebuild V SV 076 564,975.9 5,272,116.2 62,810.4 64,700.7 521.7 11.1 7.4 0.9 0.050 0.05 0.01 0.01 0.01 0.01 0.00 0.00 0.00 0.00 0.0075 0.0000 0.0002 0.0055 0.0019 0.00 0.00 0.05 2, 3, 4, 5

Main WH V SV 077 564,720.6 5,272,100.0 62,563.5 64,685.2 521.6 13.8 4.5 0.9 0.019 0.02 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.0028 0.0000 0.0001 0.0021 0.0007 0.00 0.00 0.02 2, 3, 4, 5

Hydromet V SV 038 564,617.7 5,271,572.0 62,463.9 64,174.8 482.6 25.4 9.6 0.9 0.047 0.05 0.01 0.01 0.01 0.01 0.00 0.00 0.00 0.00 0.0072 0.0000 0.0002 0.0052 0.0018 0.00 0.00 0.05 2, 3, 4, 5

Gen Shop V SV 078 564,918.9 5,272,034.4 62,755.2 64,621.7 521.5 17.5 22.2 0.9 0.210 0.21 0.03 0.03 0.03 0.03 0.00 0.00 0.00 0.00 0.0319 0.0000 0.0008 0.0231 0.0080 0.00 0.00 0.21 2, 3, 4, 5

TBWWTPBV SV 070 565,053.3 5,272,722.5 62,885.3 65,286.8 519.5 20.8 10.8 0.9 0.100 0.10 0.04 0.04 0.03 0.03 0.00 0.00 0.00 0.00 0.0151 0.0119 0.0183 0.0110 0.0038 0.00 0.00 0.10 2, 3, 4, 5

Reagent V SV 041 564,614.3 5,271,549.7 62,460.5 64,153.3 482.5 19.9 9.3 0.9 0.014 0.01 0.04 0.04 0.02 0.02 0.20 0.20 0.00 0.00 0.0022 0.0138 0.0213 0.0016 0.0006 0.20 0.00 0.01 2, 3, 4, 5

Spares WH V SV 079 564,712.7 5,272,010.0 62,555.8 64,598.2 521.7 8.6 4.5 0.9 0.015 0.02 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.0023 0.0000 0.0001 0.0017 0.0006 0.00 0.00 0.02 2, 3, 4, 5

RubbSh V SV 081 564,727.3 5,272,367.2 62,570.1 64,943.4 521.7 17.5 5.4 0.9 0.003 0.00 0.000 0.000 0.000 0.000 0.000 0.000 0.00 0.00 0.0005 0.0000 0.0000 0.0003 0.0001 0.00 0.00 0.00 2, 3, 4, 5

LubeHs V SV 083 564,758.4 5,272,358.9 62,600.1 64,935.4 521.8 13.2 2.9 0.9 0.001 0.00 0.000 0.000 0.000 0.000 0.000 0.000 0.00 0.00 0.0002 0.0000 0.0000 0.0001 0.0000 0.00 0.00 0.00 2, 3, 4, 5

Heat Pl V SV 048 564,541.2 5,271,689.9 62,390.0 64,288.8 482.1 19.6 3.9 0.9 0.029 0.03 0.07 0.07 0.04 0.04 0.00 0.00 0.00 0.00 0.0044 0.0293 0.0396 0.0032 0.0011 0.00 0.00 0.03 2, 3, 4, 5

Area2BV SV 058 566,643.7 5,272,131.1 64,422.5 64,714.6 510.0 16.2 8.8 0.9 0.179 0.18 0.01 0.01 0.01 0.01 0.00 0.00 0.00 0.00 0.0096 0.0000 0.0000 0.0069 0.0028 0.00 0.00 0.18 2, 6, 7

CarDmp V SV 046 564,429.1 5,271,685.1 62,281.6 64,284.2 481.1 20.6 2.2 0.9 0.000 0.00 0.01 0.01 0.01 0.01 0.00 0.00 0.00 0.00 0.0000 0.0000 0.0133 0.0000 0.0000 0.00 0.00 0.00 2, 3, 4, 5

MDS 603 NA [A] [A] 62,669.0 65,277.0 479.2 4.7 Mobile Diesels - Ore Haul Locomotives [B] 97.6 2.17 3.9E-01 3.9E-01 1.6E-02 1.6E-02 1.6E-02 1.6E-02 7.3E-04 7.3E-04 0.0000 0.0057 0.0033 0.0069 0.00 0.00 0.39 2, 8, 9

MDS 604 NA [A] [A] 62,886.0 64,746.0 479.7 4.7 Mobile Diesels - Switcher Locomotive 1127.7 2.17 8.7E-02 8.7E-02 3.5E-03 3.5E-03 3.5E-03 3.5E-03 1.6E-04 1.6E-04 0.0000 0.0013 0.0007 0.0015 0.00 0.00 0.09 2, 8, 9

MDS 605 NA 566377.41 5274058.62 64,165.7 66,577.9 498.0 6.6 Mobile Diesels - Tailings Basin Construction Vehicles 207.8 3.08 6.6E+00 6.6E+00 6.3E-02 6.3E-02 6.3E-02 6.3E-02 1.5E-02 1.5E-02 0.0000 0.0226 0.0132 0.0274 0.02 0.00 6.57 2, 8, 9

Speciated Modeling RatesEmission Rates

SO2 SO4Stack

ID No.

UTM: Zone 15 (NAD83) LCC: 47N 93W (30,60N) Base

ElevationExit Flow Rate Exit Height from Base

Inside

Diameter

Exit Flow

Velocity

Basis

Permit ID No.

Release Height

Exit

Temperature

NOx PM10 PM2.5

Class I Model Inputs Page 1 of 2 7/25/2017

Attachment S3PolyMet

Hoyt Lakes, Minnesota

Feet to Meters>> 0.3048

Speciation Notes:

1) Fraction of PM10 as PMF is set based on PM2.5 rate (PM2.5 rate = PMF rate), PMC is equal to PM10 - PMF.

2) Fraction of PM10 as PMF is set based on PM2.5 rate (PM2.5 = PMF + SOA + EC +SO4), PMC is equal to PM10 - PMF -EC -SOA -SO4.

3) Emission factor from AP-42 Table 1.4-2 is 7.6 (total PM)/106 scf natural gas

5.5 VOC's

% of Total Particulate assumed to be SOA = 5.5 lb VOCs/mmscf / 7.6 lb PM/mmscf = 72.4%

4) Assume all filterable PM emissions from natural gas combustion are EC

AP-42 'Natural Gas Combustion' Table 1.4-2; Total PM Emission factor is 7.6 lb and filterable is 1.9 lb:

EC, percent of PM10: 1.9 / 7.6 = 25.0%

5) SO2 emissions from natural gas fired sources are negligible, therefore SO4 emissions are assumed to be zero.

All natural gas particulate is assumed to be PMF

6) Assume all filterable PM emissions from propane combustion are EC

AP-42 'Liquified Petroleum Gas Combustion' Table 1.5-1 (07/2008); Total PM Emission factor is 0.7 lb/10^3 gallon and filterable is 0.2 lb/10^3 gallon:

EC, percent of PM10: 0.2 / 0.7 = 28.6%

Assume condensible PM emissions from propane combustion are SOA

SOA, percent of PM10: 0.5/0.7 = 71.4%

7) SO2 emissions from propane fired sources are negligible, therefore SO4 emissions are assumed to be zero.

All propane particulate is assumed to be PMF (no PMC emissions)

8) Heavy Duty Diesel speciated emissions from US EPA SPECIATE 4.2, profile number 32202 (added 1/5/89) EC, percent of (PM10-SOA-SO4) 54.8

Assume SOA equals organic carbon speciation SOA, percent of PM10 20.9

All diesel particulate is assumed to be PMF (no PMC emissions)

9) The diesel sources are assumed to have no SO4 concentrations because the exhaust temperatures are higher than the temperatures at which the conversion of SO3 to H2SO4 vapor occurs.

General Notes

[A] These sources not included in Class II modeling, so UTM coordinates have not been determined. Coordinates in columns D and E are used for Class I modeling.

[B] Ore haul locomotive emissions are divided in half because the other half will be assigne to the Rail Transfer Hopper (railcar loading location) at the Mine Site.

Definitions

PM10 particulate matter less than 10 microns (aerodynamic equivalent)

PMC coarse particulate matter, particulate mater ≤ 10 microns and >2.5 microns

PMF fine particulate matter, particulate matter ≤ 2.5 microns

EC elemental carbon


SO4 sulfuric acid

SO2 sulfur dioxide

NOx oxides of nitrogen

Class I Model Inputs Page 2 of 2 7/25/2017

PolyMet

Hoyt Lakes, Minnesota

PMC PMF SOA EC SO2 SO4 NOX

Easting Northing X YHourly Annual Hourly Annual Hourly Annual Hourly Annual Hourly Annual

(m) (m) (m) (m) (m) (acfm) Note (ft) (m) (ft) (m) (m/s) (F) (K) (g/s) (g/s) (g/s) (g/s) (g/s) (g/s) (g/s) (g/s) (g/s) (g/s) (g/s) (g/s) (g/s) (g/s) (g/s) (g/s) (g/s)

SV 425 SV 050 577682.09 5273893.62 75093.10 66414.20 486.8 30.0 9.1 Lime Silo 0.0 0.2 0.0 70 294.3 0.0E+00 0.00 7.7E-03 0.01 2.3E-03 0.00 0.0E+00 0.00 0.005 0.002

Sigma Y Sigma Z

Volume Sources (m) (m) (m) Heating PMF

MSMISC 577724.26 5273858.95 75133.90 66380.70 489.4 3.0 3.5 2.84 3.6E-02 0.04 2.7E-02 0.03 1.7E-02 0.02 4.4E-03 0.00 0.0019 0.010 0.015 0.001 0.001 0.004 0.000 0.036

MDS602 NA [A] [A] 75076.00 66186.00 486.6 4.7 Mobile Diesels - Ore Haul Locomotives [B] 291.6 2.17 0.44 0.44 0.02 0.02 0.02 0.02 8.06E-04 8.06E-04 0.000 0.006 0.004 0.008 0.001 0.000 0.436

MDS601 NA [A] [A] 74865.00 67272.00 488.8 6.6 Mobile Diesels - Mine Site Haul Truck and other equip. 3369.6 3.08 4.4781 4.48 0.04 0.04 0.04 0.04 0.01 0.01 0.000 0.015 0.009 0.019 0.012 0.000 4.478

Speciation Notes:

1) Heavy Duty Diesel speciated emissions from US EPA SPECIATE 4.2, profile number 32202 (added 1/5/89)

EC, percent of (PM10-SOA-SO4) 54.8

Assume SOA equals organic carbon speciation

SOA, percent of PM10 20.9

All natural gas and diesel particulate is assumed to be PMF (no PMC emissions)

2) The diesel sources are assumed to have no SO4 concentrations because the exhaust temperatures are higher than the temperatures at which the conversion of SO3 to H2SO4 vapor occurs.

3) Assume all filterable PM emissions from propane combustion are EC

AP-42 'Liquified Petroleum Gas Combustion' Table 1.5-1 (07/2008); Total PM Emission factor is 0.7 lb/10^3 gallon and filterable is 0.2 lb/10^3 gallon:

EC, percent of PM10: 0.2 / 0.7 = 28.6%

Assume condensible PM emissions from propane combustion are SOA

SOA, percent of PM10: 0.5/0.7 = 71.4%

4) SO2 emissions from propane fired sources are negligible, therefore SO4 emissions are assumed to be zero.

All propane and diesel particulate is assumed to be PMF (no PMC emissions)

General Notes

[A] These sources not included in Class II modeling, so UTM coordinates have not been determined. Coordinates in columns D and E are used for Class I modeling.

[B] Ore haul locomotive emissions are divided in half because the other half will be assigne to the primary crusher (railcar unloading location) at the Plant Site.

Definitions

PM10 particulate matter less than 10 microns (aerodynamic equivalent)

PMC coarse particulate matter, particulate mater ≤ 10 microns and >2.5 microns

PMF fine particulate matter, particulate matter ≤ 2.5 microns

EC elemental carbon


SO4 sulfuric acid

SO2 sulfur dioxide

NOx oxides of nitrogen

Release Height

Exit Flow Rate Exit Height from BaseInside

Diameter

Exit Flow

VelocityStack

ID No.

UTM: Zone 15 (NAD83) LCC: 47N 93W (30,60N)Base

ElevationPermit

SV ID

PM2.5 SO2

Basis

SO4

Emission Rates

NOx PM10Exit

Temperature

Modeling Input - Class I Page 1 of 1 7/25/2017

LAST REVISION JULY 19, 2016 UTM coordinates are Zone 15

Facility Name Permit Number Latitude Longitude Elevation (m) X_LCC (m) Y_LCC (m)

Combined

Temp (K)

Combined D

(m)

Combined H

(m)

Combined V

(m/s)

American Crystal Sugar - Crookston 11900001

American Crystal Sugar - Crookston 11900001 47.29 -91.26 267.90 -263125.59 88151.00 388.71 1.52 42.67 31.05

American Crystal Sugar - Crookston 11900001 47.29 -91.26 267.90 -263125.59 88151.00 294.26 0.41 11.58 51.19

American Crystal Sugar - E Grand Forks 11900002

American Crystal Sugar - E Grand Forks 11900002 47.93 -96.98 254.50 -289216.1482 106794.2275 482.04 2.73 52.27 13.38

American Crystal Sugar - E Grand Forks 11900002 47.93 -96.98 254.50 -289216.1482 106794.2275 383.15 1.22 45.72 27.29

ArcelorMittal Minorca Mine Inc 13700062

ArcelorMittal Minorca Mine Inc 13700062 47.59 -92.44 489.00 34762.58 60382.20 291.48 1.07 3.05 13.73

ArcelorMittal Minorca Mine Inc 13700062 47.59 -92.44 489.00 34762.58 60382.20 322.04 2.67 41.45 17.32

Blandin Paper/Rapids Energy Center 06100001

Blandin Paper/Rapids Energy Center 06100001 47.23 -93.53 387.10 -39252.84 25325.05 519.26 2.74 62.48 22.91

Blandin Paper/Rapids Energy Center 06100001 47.23 -93.53 387.10 -39252.84 25325.05 365.37 0.55 27.25 28.60

Boise White Paper LLC - Intl Falls 07100002 48.60 -93.41 342.00 -29062.13 172671.09 513.71 3.00 60.81 20.08

Duluth Paper Mill & Duluth Recycle Pulp 13700141 46.7349 -92.1663 196.29 61548.23753 -28147.2262 313.0 0.84 20.25 8.62

Duluth Steam Cooperative Association 13700022 46.79 -92.10 183.00 66612.69 -22641.25 510.93 3.96 73.15 7.32

Essar 06100067 472.50 -16335.30 40912.50 318.15 4.70 60.00 15.25

Essar 06100067 472.50 -16262.90 40952.10 298.15 2.70 60.00 15.25

Great Lakes Station 5 (Cloquet) 13700066 46.7842 -92.7117 375.0 21948.45199 -22975.8379 640.62 1.60 12.13 16.21

Hibbing Public Utilities Commission 13700027 47.43 -92.94 452.60 4738.17 46133.18 454.82 3.20 47.24 12.81

Hibbing Taconite Co 13700061 47.40 -92.88 492.00 2370.02 51369.37 310.93 2.68 36.27 18.79

Hill Wood Products 13700030 22050.3 92719.99 294.3 1.46 12.19 8.23

Lamb Weston/RDO Frozen 05700006

Lamb Weston/RDO Frozen 05700006 46.90 -95.06 439.00 -151665.96 -10516.27 585.93 1.83 30.48 10.78

Lamb Weston/RDO Frozen 05700006 46.90 -95.06 439.00 -151665.96 -10516.27 299.82 0.76 12.19 2.59

Marvin Windows & Doors 13500002

Marvin Windows & Doors 13500002 48.91 -95.32 325.20 -164706.28 208138.74 422.04 0.53 13.72 19.01

Marvin Windows & Doors 13500002 48.91 -95.32 325.20 -164706.28 208138.74 294.26 0.91 9.45 65.97

Mesabi Nugget 13700318 47.6 -92.14 521.6 62491.68 64783.526 358.00 4.23 60.00 25.00

Mesabi Nugget 13700318 47.60 -92.14 521.60 62491.68 64783.53 311.00 2.70 18.70 5.10

Mesabi Nugget 13700318 47.60 -92.14 521.60 62491.68 64783.53 298.20 1.98 30.48 3.83

Minnesota Power - Laskin Energy 13700013 47.50 -92.18 394.40 60972.94 57242.37 330.93 3.22 91.44 14.34

Minnesota Power - Taconite Harbor 03100001 47.68 -90.95 442.00 151960.09 58981.95 435.93 3.02 67.06 25.74

Minnesota Power - Boswell 06100004 47.30 -93.70 190.50 -47806.02 28214.21 422.04 2.90 76.20 42.28

Minnesota Power - Boswell (Boiler 4) 06100004 47.30 -93.70 190.50 -47806.02 28214.21 343.15 6.10 182.88 35.85

Minnesota Power - Hibbard 13700015 46.73 -92.16 394.40 62585.57 -28073.12 465.37 4.27 100.89 26.52

Minnesota Power - Hibbard (Boilers 1&2) 13700015 394.40 62585.57 -28073.12 444.30 4.27 100.89 6.92

Norbord Minnesota 00700019

Norbord Minnesota 00700019 47.51 -95.08 448.00 -151544.28 56868.17 377.59 1.73 45.72 22.13

Norbord Minnesota 00700019 47.51 -95.08 448.00 -151544.28 56868.17 319.82 2.44 33.53 12.13

Northshore Mining Co - Babbitt 13700032

Northshore Mining Co - Babbitt 13700032 47.65 -91.95 490.70 80930.68 72261.49 422.04 0.49 12.80 25.27

Northshore Mining Co - Babbitt 13700032 47.65 -91.95 490.70 80930.68 72261.49 298.15 1.31 19.45 20.99

Northshore Mining Co - Silver Bay 07500003

Northshore Mining Co - Silver Bay 07500003 47.29 -91.26 186.20 126955.53 32014.63 422.04 2.29 65.84 26.46



PolyMet (EIS Only) 525.00 62655.74 64692.87 370.4 1.7 38.1 16.8

PolyMet (EIS Only) 529.77 62647.40 64888.13 298.0 2.0 45.7 18.2

PolyMet (EIS Only) 500.82 62769.70 64395.11 293.7 1.9 3.0 12.2

Sappi Cloquet LLC 01700002 46.72 -92.44 352.00 42126.57 -29517.51 449.82 3.35 99.06 21.71

Specialty Minerals Inc. 07100019 48.6038 -93.4052 341.99 -28898.13047 172412.0104 305.2 0.51 21.13 6.91

United Taconite LLC - Fairlane Plant 13700113

United Taconite LLC - Fairlane Plant 13700113 47.35 -92.58 488.00 30921.45 37894.57 298.15 0.76 44.50 20.70

United Taconite LLC - Fairlane Plant 13700113 47.35 -92.58 488.00 30921.45 37894.57 325.93 3.66 46.63 15.54



Combined

Temp (K)

Combined D

(m)

Combined H

(m)

Combined V

(m/s)

United Taconite LLC - Thunderbird Mine 13700011

United Taconite LLC - Thunderbird Mine 13700011 47.47 -92.54 490.70 33729.08 51104.66 298.15 0.73 11.58 43.27

United Taconite LLC - Thunderbird Mine 13700011 47.47 -92.54 490.70 33729.08 51104.66 422.04 0.82 24.99 4.44

US Steel - Keewatin Taconite 13700063

US Steel - Keewatin Taconite 13700063 47.60 -92.47 451.10 -4484.66 44341.01 298.15 0.98 45.72 9.35

US Steel - Keewatin Taconite 13700063 47.60 -92.47 451.10 -4484.66 44341.01 328.71 5.79 48.77 15.19

US Steel Corp - Minntac 13700005

US Steel Corp - Minntac 13700005 47.52 -92.64 531.90 27173.60 60995.47 283.15 0.61 27.86 22.23



USG Interiors Inc - Cloquet 01700006

USG Interiors Inc - Cloquet 01700006 46.72 -92.46 375.00 39182.75 -29419.25 467.04 1.01 14.33 4.14

USG Interiors Inc - Cloquet 01700006 46.72 -92.46 375.00 39182.75 -29419.25 294.26 0.20 20.12 35.88

Virginia Dept of Public Utilities 13700028 47.52 -92.53 435.90 33392.21 56201.23 472.04 1.52 45.72 27.65

Xcel Energy - Sherburne 14100004 -67775.06 -173635.52 350.37 9.91 198.12 31.84

Xcel Energy - Sherburne (Boiler 1) 14100004



Minnesota Facilities (Closed) - Actual

Emissions

Ainsworth Engineered LLC - Bemidji 05700005

Ainsworth Engineered LLC - Bemidji 05700005 47.38 -94.74 405.4 -127181.41 42628.46 341.48 3.20 41.15 8.80



Ainsworth Engineered LLC - Cook OSB 13700083

Ainsworth Engineered LLC - Cook OSB 13700083 48.41 -93.05 407.10 24624.02 85631.73 392.59 2.35 41.15 18.72

Ainsworth Engineered LLC - Cook OSB 13700083 48.41 -93.05 407.1 24624.02 85631.73 531.48 1.37 33.53 23.54

Ainsworth Engineered LLC - Grand Rapids 06100010

Ainsworth Engineered LLC - Grand Rapids 06100010 47.1762 -93.6377 399.3 -41861.57924 25018.07067 755.37 0.73 18.29 6.96



Cliffs Erie - Hoyt Lakes 13700009 47.60 -92.14 481.60 62265.84 63808.99 294.26 1.22 0.00 20.21

Georgia-Pacific - Duluth Hardboard 13700031

Georgia-Pacific - Duluth Hardboard 13700031 46.77 -92.11 183.00 65606.37 -23926.30 338.71 1.52 15.42 7.76

Georgia-Pacific - Duluth Hardboard 13700031 46.77 -92.11 183.00 65606.37 -23926.30 435.93 1.37 24.38 1.28

Hanna (Butler Mining) 13700031

Hanna (Butler Mining) 13700031 471.8 -14585.29629 37692.85945 394.26 3.76 37.49 15.96

Hanna (Butler Mining) 13700031 471.8 -14585.29629 37692.85945 294.26 1.10 28.96 7.72

LTV Cliffs Erie, Hoyt Lakes 13700009 47.6 -92.14

LTV Cliffs Erie, Hoyt Lakes 13700009 47.6 -92.14 481.6 62465.79303 64251.21386 518.71 1.07 0.61 53.39



Royal Oak Enterprises Inc 05900002

Royal Oak Enterprises Inc 05900002 45.488333 -93.243056 285 -18350.2835 -162262.425 1060.93 0.85 10.06 98.02

Royal Oak Enterprises Inc 05900002 45.488333 -93.243056 285 -18350.2835 -162262.425 522.04 1.03 18.29 9.00

Verso Paper Co - Sartell Mill 00900011

Verso Paper Co - Sartell Mill 00900011 45.618 -94.2002 310 -90439.01513 -147669.57 328.15 3.05 91.44 8.04

Verso Paper Co - Sartell Mill 00900011 45.618 -94.2002 310 -90439.01513 -147669.57 293.15 0.24 30.48 97.02

Minnesota Minor Sources

Alltrista Consumer Products Co 01700003



Combined

Temp (K)

Combined D

(m)

Combined H

(m)

Combined V

(m/s)

Alltrista Consumer Products Co 01700003 46.72 -92.44 362.70 41148.84 -29864.27 293.15 1.28 14.63 3.01

Alltrista Consumer Products Co 01700003 46.72 -92.44 362.70 41148.84 -29864.27 394.26 0.97 19.81 23.17

AmeriPride Services Inc. 13700337 47.4295 -92.9360 451.71 4668.775895 46135.30277 333.2 0.71 9.96 13.07

Cirrus Design Corp aka Cirrus Aircraft 13700343 46.8383 -92.2036 441.35 58682.18208 -17070.5824 294.3 0.91 10.67 12.94

Grand Marias Public Utilities Commission 03100008 47.7538 -90.3582 264.26 191389.3898 84130.52549 536.1 0.46 9.93 27.27

Hedstrom Lumber Grand Marais 03100002 48.0679 -90.6833 584.00 166866.9091 117145.5374 449.8 0.91 21.3 17.25

International Bildrite 07100015 48.6017 -93.4000 341.38 -28526.36047 172181.0175 401.5 1.22 14.63 26.52

Joy Global Surface Mining 13700338 47.5233 -92.5366 438.91 33723.13647 56301.10941 294.3 0.91 3.05 7.19

Louisiana-Pacific Corp - Two Harbors 07500019

Louisiana-Pacific Corp - Two Harbors 07500019 47.0466 -91.6751 261.09 97256.88 5814.16 480.00 1.20 36.03 14.60

Louisiana-Pacific Corp - Two Harbors 07500019 47.0466 -91.6747 260.70 97281.78 5809.21 360.37 13.13 29.99 7.61

ME Global 13700073 46.6643 -92.2216 217.63 57538.71841 -35767.0494 310.9 2.4 15.8 18.19

Northern Foundry (Northern Casting) 13700082 47.4218 -92.9472 460.86 3847.029394 45305.08517 324.8 1.0 21.0 16.33

The C. Reiss Coal Company 13700071 46.7290 -92.1610 184.71 61946.13438 -28776.6331 402.3 0.35 11.07 5.99

University of Minnesota - Duluth 13700039 46.8150 -92.0862 331.93 67363.23213 -19482.1541 662.1 0.34 11.62 29.91

Wisconsin Central Ltd/Duluth Missabe & Iron

Range 07500005 47.0187 -91.6710 193.55 97605.33907 2818.414365 319.9 0.54 18.69 8.18

Minnesota Sources Not Included at this Time

Bowman Constr Co Inc - Nonmetallic 07100024 48.5983 -93.1786 486832.02 5382817.66 344.2 0.30 9.25 7.96

Calumet Superior LLC 13700287 46.7085 -92.2871 554492.62 5173018.36 299.7 0.58 8.26 1.19

Duluth Missabe & Iron Range Railway Co 13700043 46.7512 -92.1413 192.02 565588.65 5177874.5

Excelsior Energy (Taconite site) 13700320 434.30 -27103.10 37075.70 394.3 6.1 45.72 20.08




Holmes Recycling Services Inc - Metallic 13700311

Hoover Construction Co - Nonmetallic 13700298 47.5210 -92.5590 533199.95 5263157.83 319.4 0.38 10.25 6.06

Itasca Power Co - Northome Biomass Plant 07100026

KGM Contractors Inc - Nonmetallic 13700288 46.9395 -92.9335 505061.4 5198443.15 311.7 0.38 10.25 6.06

Louis Leustek & Sons Inc - Nonmetallic 13700290 47.9032 -91.8405 586654.58 5306192.05 343.8 0.30 8.97 7.72

Magnetation LLC - Plant 1 06100076




LAST REVISION JULY 19, 2016

Facility Name Permit Number













Boise White Paper LLC - Intl Falls 07100002

Duluth Paper Mill & Duluth Recycle Pulp 13700141

Duluth Steam Cooperative Association 13700022

Essar 06100067

Essar 06100067

Great Lakes Station 5 (Cloquet) 13700066

Hibbing Public Utilities Commission 13700027

Hibbing Taconite Co 13700061

Hill Wood Products 13700030







Mesabi Nugget 13700318



Minnesota Power - Laskin Energy 13700013

Minnesota Power - Taconite Harbor 03100001

Minnesota Power - Boswell 06100004

Minnesota Power - Boswell (Boiler 4) 06100004

Minnesota Power - Hibbard 13700015

Minnesota Power - Hibbard (Boilers 1&2) 13700015











PolyMet (EIS Only)

PolyMet (EIS Only)

PolyMet (EIS Only)

Sappi Cloquet LLC 01700002

Specialty Minerals Inc. 07100019




First Year

Data

AvailableNOx

(tpy)

PM10

(tpy)

TSP

(tpy)

SO2

(tpy)

NOx

(tpy)

PM10

(tpy)

TSP

(tpy)

SO2

(tpy)

NOx

(tpy)

PM10

(tpy)

TSP

(tpy)

SO2

(tpy)

NOx

(tpy)

PM10

(tpy)

TSP

(tpy)

SO2

(tpy)

1980 322.00 7.96 17.00 875.00 494 113.26 242 994 570 230 950 899 146 278 703

320.96 6.47 873.24 492.40 92.16 0.00 990.78 463.80 948.09 896.09 118.80 701.59

1.04 1.48 1.76 1.60 21.10 0.00 3.22 106.20 1.91 2.91 27.20 1.41

1980 474.00 21.53 35.00 1212 1582 261.99 426 1506 849 392 1194 1581 269 429 1213

439.77 8.95 1210.52 1467.76 108.95 0.00 1397.24 353.07 1192.55 1466.83 111.87 1211.52

34.23 12.57 1.48 114.24 153.04 0.00 108.76 495.93 1.45 114.17 157.13 1.48

1980 0.00 1147.83 1802.00 504 67 456.71 717 67 456.71 717 69 55 2941 654 56

0.00 382.34 0.00 0.00 152.13 0.00 0.00 152.13 0.00 0.00 979.65 0.00

0.00 765.49 504.00 67.00 304.58 0.00 67.00 304.58 69.00 55.00 1961.35 56.00

1980 912.00 3.70 5.00 89 1018 11.82 16 926 1410 14 959 814 64 12 753

874.17 3.52 88.91 975.77 11.25 0.00 887.58 1341.90 958.04 780.23 60.91 752.24

37.83 0.18 0.09 42.23 0.57 0.00 38.42 68.10 0.96 33.77 3.09 0.76

1980 64.00 1217.16 1932.00 7 400 0.00 1100 1313 14686 482 419 1241 444 421 442

1996 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

1980 276.00 106.38 108.00 579 379 12.81 13 379 207 13 704 360 5 17 995

1980 204.00 9.00 9.00 0 202 9.00 9 202.00 9.00 0.00 202 0.00 9.00 0.00

1980 945.00 4.71 19.00 1 572 0.00 12 608 521 14 912 616 31 13 925

1980 0.00 1178.29 1788.00 396 132 330.82 502 132 330.82 502 168 88 4168 411 808

2008 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

1984 0.00 0.00 0.00 0 36 2.95 12 36 11 12 152 35 11 11 149

0.00 0.00 0.00 36.00 0.88 0.00 36.00 3.28 152.00 35.00 3.28 149.00

0.00 0.00 0.00 0.00 2.07 0.00 0.00 7.72 0.00 0.00 7.72 0.00

1980 2.00 0.64 1.00 0 2 1.29 2 2 2 2 0 2 0

2.00 0.06 0.00 2.00 0.13 0.00 2.00 0.00 0.00 2.00 0.00 0.00

0.00 0.58 0.00 0.00 1.16 0.00 0.00 0.00 0.00 0.00 0.00 0.00

2008 0.00 0.00 0.00 0 0 0.00 0 0 0 0 0 0 0 0 0 0

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1980 2206.00 107.14 236.00 2497 186 9.53 21 - 186 201 21 279 251 24 43 330

1980 3406.00 275.80 350.00 10818 0 0.00 0 0 0 4 0 0 10 40 0

1980 29412.00 2085.70 2414.00 21090 39890 2203.20 2550 24943 34093 2061 22301 11819 1627 1463 15054

1980 446.00 73.56 142.00 1745 0.00 0 0 0 0

1984 0.00 0.00 0.00 0 0 9.32 10 0 22 476 0 14 48 45 2

0.00 0.00 0.00 0.00 6.58 0.00 0.00 15.53 0.00 13.13 33.89 0.87

0.00 0.00 0.00 0.00 2.74 0.00 0.00 6.47 0.00 0.87 14.11 1.13

1980 4.00 2129.84 2836.00 16 516 486.65 648 516 648 1 416 160 321 0

4.00 14.72 16.00 516.00 3.36 0.00 516.00 0.00 1.00 416.00 1.11 0.00

0.00 2115.12 0.00 0.00 483.29 0.00 0.00 0.00 0.00 0.00 158.89 0.00

1980 1946.00 1655.85 2259.00 1844 5288 1053.32 1437 1525 801 1142 1912 1489 1402 1341 2224

1605.94 586.61 1718.90 4363.94 373.16 0.00 1258.51 283.77 1782.29 1228.80 496.68 2073.12

0.00 169.11 0.00 0.00 107.57 0.00 0.00 81.80 0.00 0.00 143.18 0.00

340.06 900.12 125.10 924.06 572.59 0.00 266.49 435.43 129.71 260.20 762.13 150.88

1980 552.00 145.82 317.00 2767 560 32.20 70 1339 3013 190 2114 1337 88 188 1904

1995 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

1980 4.00 1918.18 2262.00 1402 691 1507.74 1778 740 292 1338 1697 360 2920 1671 1719

0.00 598.91 0.00 0.00 470.76 0.00 0.00 91.17 0.00 0.00 911.71 0.00

4.00 1319.26 1402.00 691.00 1036.98 0.00 740.00 200.83 1697.00 360.00 2008.29 1719.00

1980 1984 1985 1986
















Virginia Dept of Public Utilities 13700028

Xcel Energy - Sherburne 14100004





Emissions












Cliffs Erie - Hoyt Lakes 13700009







LTV Cliffs Erie, Hoyt Lakes 13700009












First Year

Data

AvailableNOx

(tpy)

PM10

(tpy)

TSP

(tpy)

SO2

(tpy)

NOx

(tpy)

PM10

(tpy)

TSP

(tpy)

SO2

(tpy)

NOx

(tpy)

PM10

(tpy)

TSP

(tpy)

SO2

(tpy)

NOx

(tpy)

PM10

(tpy)

TSP

(tpy)

SO2

(tpy)

1980 1984 1985 1986

1980 3.00 1.23 2.00 6 3 0.62 1 3 1 4 3 213 2 5

0.00 1.22 0.00 0.00 0.61 0.00 0.00 0.00 0.00 0.00 211.17 0.00

3.00 0.01 6.00 3.00 0.01 0.00 3.00 0.00 4.00 3.00 1.83 5.00

1980 0.00 919.80 1314.00 103 84 1235.50 1765 84 1245.30 1779 148 80 322 1613 134

0.00 158.65 0.00 0.00 213.10 0.00 0.00 214.79 0.00 0.00 55.54 0.00

0.00 761.15 103.00 84.00 1022.40 0.00 84.00 1030.51 148.00 80.00 266.46 134.00

1980 64.00 13527 16496 2513 5311 5141.40 6270 1245 6395.18 7799 1625 351 5021 4275 1076

0.00 1948 0.01 0.00 740.27 0.00 0.00 920.79 0.01 0.00 722.93 0.01

63.40 9748 2512.50 5261.00 3705.14 0.00 1233.28 4608.68 1624.68 347.70 3618.38 1075.79

0.60 1831 0.49 50.00 695.99 0.00 11.72 865.71 0.31 3.30 679.69 0.21

1984 0.00 0.00 0.00 0 230 90.42 153 230 142 153 307 194 5 212 336

0.00 0.00 0.00 230.00 78.24 0.00 230.00 122.86 307.00 194.00 4.33 336.00

0.00 0.00 0.00 0.00 12.19 0.00 0.00 19.14 0.00 0.00 0.67 0.00

1980 1068.00 31.69 114.00 817 897 48.09 173 881 764 118 1135 873 138 101 1117

1980 52742 3295 2399 27426 55806 2574 55547 58404 2597 19997 43435 2479 1805 11727

26371 1647 1200 13713 1767.58 1287 9999

26371 1647 1200 13713 1767.58 1287 9999

0.00 0.00 0.00 0 0 0.00 0 0 0 0 0 0 0 0 0 0

1984 0.00 0.00 0.00 0 30.00 0.00 72.00 30 152 72 66 108 214 2

0.00 0.00 0.00 24.91 0.00 24.91 72.89 0.00 54.81 51.79 1.35

0.00 0.00 0.00 0.00 0.00 0.00 23.00 0.00 0.00 16.34 0.00

0.00 0.00 0.00 5.09 0.00 5.09 56.10 0.00 11.19 39.86 0.65

1984 0.00 0.00 0.00 0 2 1117.8 1380 2 1380 6 50 68 2

0.00 0.00 0.00 1.16 793.9 1.16 0.00 0.00 3.47 35.51 0.89

0.00 0.00 0.00 0.84 323.9 0.84 0.00 0.00 2.53 14.49 1.11

1980 18.00 11.05 17.00 0.00 34.00 331.50 510.00 34.00 128.00 510.00 4.00 24.00 46.00 329.00 2.00

6.98 0.16 0.00 0.00 13.19 4.92 35.11 13.19 1.90 0.28 9.31 0.68 0.00 0.14

11.02 8.44 0.00 0.00 20.81 253.11 474.89 20.81 97.73 3.72 14.69 35.12 0.00 1.86

0.00 2.45 0.00 0.00 0.00 73.47 0.00 0.00 28.37 0.00 0.00 10.19 0.00 0.00

1980 0.00 0.00 0.00 0 0 0.00 0 0 0 0 0 0 0 0 0 0

1986 0.00 0.00 0.00 0 0 0.00 0 0 0 0 0 0 86 16 314

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 5.60 11.74 6.90

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 80.40 4.26 307.10

1980 0.00 957.91 1434 53.00 341 1221.8 1829 329.00 588.51 881.00 279.00 0.00 0.00 0.00 0.00

0.00 566.87 53.00 341.00 723.0 329.00 348.26 279.00 0.00 0.00 0.00 0.00

0.00 391.05 0.00 0.00 498.76 0.00 240.25 0.00 0.00 0.00 0.00 0.00

1980 117.00 6099.75 10739 659.00 178 4515.0 7949 266.00 104.00 9179.00 933.00 203.00 135954 8233 857.00

0.00 3.28 0.00 0.00 2.43 0.00 0.06 0.00 0.00 73.16 0.00

115.63 5027.80 655.25 175.91 3721.58 262.88 85.72 927.69 200.62 112062 852.13

1.37 1068.67 3.75 2.09 791.03 3.12 18.22 5.31 2.38 23819 4.87

1980 0.00 62.74 682.00 0.00 66 5.24 57 66.00 5.24 57.00 0.00 42.00 3.31 36.00 0.00

0.00 23.69 0.00 32.20 1.98 32.20 1.98 0.00 20.49 1.25 0.00

0.00 39.05 0.00 33.80 3.26 33.80 3.26 0.00 21.51 2.06 0.00

1980 171 0 66 726 916 565

171.00 0.00 66.00 0.00 0.00 0.00 0.00 0.00 0.00 726.00 328.12 565.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 587.88 0.00

1988 0.00 0.00 0.00 0 0 0.00 0 0 0 0 0 0 0 0 0 0





AmeriPride Services Inc. 13700337

Cirrus Design Corp aka Cirrus Aircraft 13700343

Grand Marias Public Utilities Commission 03100008

Hedstrom Lumber Grand Marais 03100002

International Bildrite 07100015

Joy Global Surface Mining 13700338




ME Global 13700073

Northern Foundry (Northern Casting) 13700082

The C. Reiss Coal Company 13700071

University of Minnesota - Duluth 13700039


Range 07500005


Bowman Constr Co Inc - Nonmetallic 07100024

Calumet Superior LLC 13700287

Duluth Missabe & Iron Range Railway Co 13700043

Excelsior Energy (Taconite site) 13700320





Hoover Construction Co - Nonmetallic 13700298


KGM Contractors Inc - Nonmetallic 13700288

Louis Leustek & Sons Inc - Nonmetallic 13700290





First Year

Data

AvailableNOx

(tpy)

PM10

(tpy)

TSP

(tpy)

SO2

(tpy)

NOx

(tpy)

PM10

(tpy)

TSP

(tpy)

SO2

(tpy)

NOx

(tpy)

PM10

(tpy)

TSP

(tpy)

SO2

(tpy)

NOx

(tpy)

PM10

(tpy)

TSP

(tpy)

SO2

(tpy)

1980 1984 1985 1986

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

2011 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

2015 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

2003 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

2006 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

2006 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

2012 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

1995 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1984 0 0 0 0 6 30 256 2 42 51 2

1984 0 0 0 0 1 125 2 41 13 2 2 6 12 2

1995 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

1995 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

1996 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

1996 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

1996 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

1996 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

n/a 0.00 0.00 0.00 0 0 0.00 0 0 0 0 0 0 0 0 0 0

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

2001 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

1998 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

2000 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

1996 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

1996 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

2009 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

2012 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

2012 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

2014 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0


















Essar 06100067

Essar 06100067






























PolyMet (EIS Only)

PolyMet (EIS Only)

PolyMet (EIS Only)






NOx

(tpy)

PM10

(tpy)

TSP

(tpy)

SO2

(tpy)

NOx

(tpy)

PM10

(tpy)

SO2

(tpy)

NOx

(tpy)

PM10

(tpy)

SO2

(tpy)

NOx

(tpy)

PM10

(tpy)

SO2

(tpy)

NOx

(tpy)

PM10

(tpy)

SO2

(tpy)

1056 39 77 940 914.14 40.35 594.50 1033.02 92.51 697.79 1155.56 84.47 775.80 1150.99 88.72 730.74

1052.58 31.73 938.11 911.18 32.83 593.30 1029.68 75.27 696.39 1151.82 68.73 774.24 1147.27 72.19 729.27

3.42 7.27 1.89 2.96 7.52 1.20 3.34 17.24 1.40 3.74 15.74 1.56 3.72 16.53 1.47

1571 282 419 1795 1491.67 296.99 988.53 1578.24 320.52 1069.58 1686.68 263.44 982.68 1033.45 177.92 827.14

1457.55 117.27 1792.81 1383.95 123.51 987.33 1464.27 133.29 1068.28 1564.88 109.56 981.48 958.82 73.99 826.13

113.45 164.73 2.19 107.72 173.48 1.20 113.97 187.23 1.30 121.80 153.88 1.20 74.63 103.93 1.01

4636 300 452 20 3590.40 303.84 30.16 3635.28 6554.09 19.72 3533.24 2301.23 16.56 3533.24 161.11 18.84

0.00 99.93 0.00 0.00 101.21 0.00 0.00 2183.17 0.00 0.00 766.54 0.00 0.00 53.67 0.00

4636.00 200.07 20.00 3590.40 202.63 30.16 3635.28 4370.92 19.72 3533.24 1534.69 16.56 3533.24 107.44 18.84

765 12 21 495 1009.48 8.88 470.04 1009.48 88.99 467.24 964.21 100.60 371.87 984.51 105.49 324.91

733.26 11.42 494.50 967.60 8.45 469.57 967.60 84.69 466.77 924.21 95.74 371.50 943.67 100.40 324.58

31.74 0.58 0.50 41.88 0.43 0.47 41.88 4.30 0.47 40.00 4.86 0.37 40.84 5.09 0.33

1309 425 618 617 1402.08 820.38 604.31 1291.12 591.18 180.85 910.88 263.51 116.99 853.40 724.20 80.12

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

294 2 3 509 280.02 2.54 728.75 293.58 1.35 694.46 276.51 1.14 591.26 395.98 2.02 435.86

348.00 16.00 16.00 0.00 291.00 13.57 0.59 255.10 11.84 0.51 393.85 18.38 0.79 395.95 18.47 0.79

3020 689 791 284 548.85 12.36 933.06 510.03 15.87 886.58 518.61 16.04 902.33 474.76 14.94 725.47

3020 689 791 284 1450.80 587.25 67.67 1562.52 505.42 69.39 1492.28 492.94 70.24 1397.68 3444.21 63.68

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

35 11 11 149 48.13 14.18 208.16 58.08 19.15 281.32 50.95 19.81 290.87 6.90 1.79 26.27

35.00 3.28 149.00 48.13 4.23 208.16 58.08 5.71 281.32 50.95 5.91 290.87 6.90 0.53 26.27

0.00 7.72 0.00 0.00 9.95 0.00 0.00 13.44 0.00 0.00 13.90 0.00 0.00 1.26 0.00

1 2 2 0 5.54 77.29 1.63 5.13 32.96 1.35 4.93 22.08 1.28 5.59 21.69 1.48

1.00 0.20 0.00 5.54 7.57 1.63 5.13 3.23 1.35 4.93 2.16 1.28 5.59 2.13 1.48

0.00 1.80 0.00 0.00 69.72 0.00 0.00 29.73 0.00 0.00 19.92 0.00 0.00 19.56 0.00

0 0 0 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

468 42 77 634 461.23 36.42 419.41 425.53 38.63 399.63 598.46 51.26 560.27 721.51 108.53 1130.11

0 0 8 0 0.24 540.48 55.92 337.00 4318.03 161.32 3899.43 2104.88 201.46 2209.81

18995 2249 2878 23201 19013.93 1004.90 21138.15 16769.53 1190.94 13803.47 14844.81 880.85 12249.13 15953.13 1047.36 15153.35

526 13 16 321 546.38 20.71 283.51 309.00 145.05 145.00 317.00 167.78 121.00 324.41 170.29 138.28

11 58 107 2 34.38 96.89 6.27 34.38 94.11 6.27 34.38 86.49 6.27 34.38 86.49 6.27

10.32 40.96 0.87 32.25 68.42 2.71 32.25 66.45 2.71 32.25 61.07 2.71 32.25 61.07 2.71

0.68 17.04 1.13 2.13 28.47 3.56 2.13 27.66 3.56 2.13 25.42 3.56 2.13 25.42 3.56

0 0 0 0 1.44 569.88 11.47 2.17 541.50 13.36 5.35 248.78 31.19 3.31 618.16 19.86

0.00 0.00 0.00 1.44 3.94 11.47 2.17 3.74 13.36 5.35 1.72 31.19 3.31 4.27 19.86

0.00 0.00 0.00 0.00 565.94 0.00 0.00 537.76 0.00 0.00 247.06 0.00 0.00 613.89 0.00

0 0 0 0 6025.39 598.26 686.50 1341.32 1664.40 1080.36 2074.88 1624.89 702.48 6301.36 2294.95 1438.14

0.00 0.00 0.00 4972.47 211.94 639.93 1106.93 589.64 1007.07 1712.30 575.65 654.82 5200.22 813.03 1340.57

0.00 0.00 0.00 0.00 61.10 0.00 0.00 169.98 0.00 0.00 165.95 0.00 0.00 234.38 0.00

0.00 0.00 0.00 1052.92 325.22 46.57 234.39 904.77 73.29 362.58 883.30 47.66 1101.14 1247.54 97.57

1341 159 184 1359 1646.54 221.66 1310.14 1532.66 265.29 908.10 1255.89 129.36 1396.38 1178.73 263.24 1148.25

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

3601 1871 2571 834 1194.39 1132.91 438.28 729.24 2964.29 184.83 720.00 4778.37 390.80 394.94 2410.43 557.91

0.00 584.18 0.00 0.00 353.73 0.00 0.00 925.54 0.00 0.00 1491.95 0.00 0.00 752.61 0.00

3601.00 1286.82 834.00 1194.39 779.18 438.28 729.24 2038.75 184.83 720.00 3286.42 390.80 394.94 1657.82 557.91

1990 1991 1992 19931988






















Emissions































NOx

(tpy)

PM10

(tpy)

TSP

(tpy)

SO2

(tpy)

NOx

(tpy)

PM10

(tpy)

SO2

(tpy)

NOx

(tpy)

PM10

(tpy)

SO2

(tpy)

NOx

(tpy)

PM10

(tpy)

SO2

(tpy)

NOx

(tpy)

PM10

(tpy)

SO2

(tpy)

1990 1991 1992 19931988

3 1 1 4 3.59 2.91 4.04 5.32 4.06 4.36 3.16 4.64 2.34 2.93 3.31 1.82

0.00 0.99 0.00 0.00 2.88 0.00 0.00 4.03 0.00 0.00 4.60 0.00 0.00 3.28 0.00

3.00 0.01 4.00 3.59 0.03 4.04 5.32 0.03 4.36 3.16 0.04 2.34 2.93 0.03 1.82

2718 1547 1847 152 3088.34 1649.95 165.12 2859.00 1265.67 163.58 2589.06 1174.08 168.76 1521.00 748.71 93.08

0.00 266.83 0.00 0.00 284.58 0.00 0.00 218.30 0.00 0.00 202.50 0.00 0.00 129.14 0.00

2718.00 1280.17 152.00 3088.34 1365.37 165.12 2859.00 1047.37 163.58 2589.06 971.58 168.76 1521.00 619.57 93.08

4104 15869 17749 887 7331.75 15300.92 921.40 8065.92 6852.55 296.89 5481.01 2074.01 173.24 6688.25 2152.09 157.08

0.00 2284.85 0.00 0.00 2203.06 0.01 0.00 986.64 0.00 0.00 298.62 0.00 0.00 309.86 0.00

4065.36 11435.98 886.82 7262.72 11026.59 921.22 7989.98 4938.28 296.83 5429.41 1494.63 173.21 6625.28 1550.90 157.05

38.64 2148.17 0.17 69.03 2071.27 0.18 75.94 927.62 0.06 51.60 280.76 0.03 62.97 291.33 0.03

182 153 268 12 145.24 84.19 2.39 148.99 171.66 6.82 140.73 161.41 4.49 141.94 156.80 265.11

182.00 132.38 12.00 145.24 72.84 2.39 148.99 148.52 6.82 140.73 139.65 4.49 141.94 135.67 265.11

0.00 20.62 0.00 0.00 11.35 0.00 0.00 23.14 0.00 0.00 21.76 0.00 0.00 21.13 0.00

891 28 126 1094 854.49 21.94 1088.46 834.89 74.05 1327.92 834.89 74.05 1327.92 804.61 56.15 1296.46

86112 1816 1966 20666 27618 891 20211 28068 1013 19032

680.5 4177 8434 333.77 4085 9597 386.63 4461 9467 951 4524

751.8 4688 9323 368.73 4585 9496 382.49 4412

383.6 11801 9861 188.16 11541 8975 243.53 10159

41 125 159 2 40.00 124.00 4.00 2.09 3.59 0.46 7.38 2.20 1.63 6.19 0.20 1.37

34.05 59.95 1.35 33.22 59.47 2.70 1.74 1.72 0.31 6.13 1.06 1.10 5.14 0.10 0.92

0.00 18.92 0.00 0.00 18.76 0.00 0.00 0.54 0.00 0.00 0.33 0.00 0.00 0.03 0.00

6.95 46.14 0.65 6.78 45.77 1.30 0.35 1.33 0.15 1.25 0.81 0.53 1.05 0.07 0.45

30 53 69 14 7.44 62.72 1.52 15.06 101.39 2.90 20.93 121.40 4.10 17.62 99.24 3.02

17.34 37.64 6.22 4.30 44.55 0.68 8.71 72.01 1.29 12.10 86.22 1.82 10.19 70.48 1.34

12.66 15.36 7.78 3.14 18.17 0.84 6.35 29.38 1.61 8.83 35.18 2.28 7.43 28.76 1.68

28.00 193.00 337.00 2.00 36.08 959.55 3.64 36.08 642.66 3.64 27.64 355.50 1.00 27.64 98.36 1.00

10.86 2.86 0.14 14.00 14.24 0.25 14.00 9.54 0.25 10.72 5.28 0.07 10.72 1.46 0.07

17.14 147.36 1.86 22.08 732.65 3.39 22.08 490.70 3.39 16.92 271.44 0.93 16.92 75.10 0.93

0.00 42.77 0.00 0.00 212.66 0.00 0.00 142.43 0.00 0.00 78.79 0.00 0.00 21.80 0.00

0 0 0 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

83 18 320 60.79 9.53 201.23 62.85 25.06 211.19 81.15 52.93 329.21 86.49 26.60 298.69

5.40 13.20 7.03 3.96 6.99 4.42 4.09 18.38 4.64 5.28 38.83 7.23 5.63 19.51 6.56

77.60 4.80 312.97 56.83 2.54 196.81 58.76 6.68 206.55 75.87 14.10 321.98 80.86 7.09 292.13

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

5053.00 16227.00 18353.00 911.00 6136.70 16007.10 1082.91 5235.24 9075.79 513.83 4847.87 8851.91 367.49 6057.16 12699.93 183.90

0.00 8.73 0.00 0.00 8.61 0.00 0.00 4.88 0.00 0.00 4.76 0.00 0.00 6.83 0.00

4993.66 13375.32 905.82 6064.63 13194.07 1076.75 5173.76 7480.84 510.91 4790.94 7296.30 365.40 5986.02 10468.09 182.85

59.34 2842.95 5.18 72.07 2804.42 6.16 61.48 1590.07 2.92 56.93 1550.84 2.09 71.14 2225.01 1.05

36.00 2.67 29.00 0.00 35.67 22.72 0.00 42.06 433.49 0.00 46.55 491.17 0.00 44.82 472.55 0.00

17.56 1.01 0.00 17.40 8.58 0.00 20.52 163.67 0.00 22.71 185.45 0.00 21.86 178.42 0.00

18.44 1.66 0.00 18.27 14.14 0.00 21.54 269.82 0.00 23.84 305.72 0.00 22.96 294.13 0.00

189 69 289 207.88 73.58 251.71 269.25 44.43 200.4 278.76 45.59 211.48 293.97 44.7 228.29

189.00 24.72 289.00 207.88 26.36 251.71 269.25 15.92 200.40 278.76 16.33 211.48 293.97 16.01 228.29

0.00 44.28 0.00 0.00 47.22 0.00 0.00 28.51 0.00 0.00 29.26 0.00 0.00 28.69 0.00

0 6 11 0 5.36 8.86 1.20 6.72 33.26 1.48 6.72 55.73 1.48 6.72 43.46 1.48














ME Global 13700073





Range 07500005


















NOx

(tpy)

PM10

(tpy)

TSP

(tpy)

SO2

(tpy)

NOx

(tpy)

PM10

(tpy)

SO2

(tpy)

NOx

(tpy)

PM10

(tpy)

SO2

(tpy)

NOx

(tpy)

PM10

(tpy)

SO2

(tpy)

NOx

(tpy)

PM10

(tpy)

SO2

(tpy)

1990 1991 1992 19931988

0.00 0.78 0.00 0.00 1.16 0.00 0.00 4.35 0.00 0.00 7.28 0.00 0.00 5.68 0.00

0.00 5.22 0.00 5.36 7.70 1.20 6.72 28.91 1.48 6.72 48.45 1.48 6.72 37.78 1.48

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

71 0 0 3 17.41 3.09 5.68 16.69 11.46 5.66 18.25 6.63 5.8 16.75 6.3 5.58

5 21 25 3 7.18 32.92 5.1 2.85 23.95 2.33

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

0 0 0 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0


















Essar 06100067

Essar 06100067






























PolyMet (EIS Only)

PolyMet (EIS Only)

PolyMet (EIS Only)






NOx

(tpy)

PM10

(tpy)

SO2

(tpy)

NOx

(tpy)

PM10

(tpy)

SO2

(tpy)

NOx

(tpy)

PM10

(tpy)

SO2

(tpy)

NOx

(tpy)

PM10

(tpy)

SO2

(tpy)

NOx

(tpy)

PM10

(tpy)

SO2

(tpy)

1159.33 90.51 713.32 1335.92 232.09 862.27 931.00 130.49 683.08 767.23 210.63 561.61 530.24 238.92 612.41

1155.58 73.65 711.88 1331.60 188.85 860.53 927.99 106.18 681.71 764.75 171.39 560.48 528.52 194.41 611.18

3.75 16.86 1.44 4.32 43.24 1.74 3.01 24.31 1.37 2.48 39.24 1.13 1.72 44.51 1.23

952.34 165.74 935.97 1643.80 273.33 979.18 749.77 145.08 757.91 852.12 203.76 840.48 822.71 215.64 842.92

883.57 68.93 934.83 1525.09 113.67 977.99 695.63 60.33 756.99 790.58 84.74 839.46 763.30 89.68 841.89

68.77 96.81 1.14 118.71 159.66 1.19 54.14 84.75 0.92 61.54 119.02 1.02 59.41 125.96 1.03

3546.76 1847.45 24.80 3463.92 1884.00 25.30 2520.67 253.49 131.13 2490.74 261.41 129.97 2436.85 682.42 127.56

0.00 615.39 0.00 0.00 627.56 0.00 0.00 84.44 0.00 0.00 87.08 0.00 0.00 227.31 0.00

3546.76 1232.06 24.80 3463.92 1256.44 25.30 2520.67 169.05 131.13 2490.74 174.33 129.97 2436.85 455.11 127.56

938.19 96.89 251.61 958.76 161.97 230.59 609.18 93.05 19.40 689.14 150.60 18.07 530.28 153.45 35.11

899.27 92.21 251.36 918.99 154.15 230.36 583.91 88.56 19.38 660.55 143.33 18.05 508.28 146.04 35.07

38.92 4.68 0.25 39.77 7.82 0.23 25.27 4.49 0.02 28.59 7.27 0.02 22.00 7.41 0.04

1098.55 202.43 85.96 904.21 204.58 79.99 950.43 120.74 67.43 888.54 124.78 70.34 859.34 200.38 89.55

0 0 0 0.00 0.00 0.00

421.53 2.16 280.15 415.52 1.95 233.93 474.24 6.68 219.78 567.92 10.34 289.26 444.70 3.35 183.67

434.98 20.30 0.87 507.67 23.69 1.02 589.10 0.03 1.02 880.00 24.88 6.32

325.51 10.85 558.33 437.69 23.87 730.82 463.80 13.12 746.48 487.53 27.58 489.12 285.83 25.21 740.00

1540.87 597.57 74.40 1108.90 662.71 93.96 4046.28 608.46 263.96 8105.68 611.94 251.34 8204.34 1280.46 253.24

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

3.27 1.10 16.15 27.42 0.98 2.67 20.19 14.40 0.18 26.01 31.06 1.91 34.85 34.31 31.07

3.27 0.33 16.15 27.42 0.29 2.67 20.19 4.30 0.18 26.01 9.27 1.91 34.85 10.24 31.07

0.00 0.77 0.00 0.00 0.69 0.00 0.00 10.10 0.00 0.00 21.79 0.00 0.00 24.07 0.00

5.20 7.83 1.32 6.03 8.85 1.88 7.06 6.62 2.21 6.77 9.20 2.61 10.10 4.34 1.52

5.20 0.77 1.32 6.03 0.87 1.88 7.06 0.65 2.21 6.77 0.90 2.61 10.10 0.43 1.52

0.00 7.06 0.00 0.00 7.98 0.00 0.00 5.97 0.00 0.00 8.30 0.00 0.00 3.91 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

833.40 105.41 943.17 1074.33 153.38 1556.28 1203.14 146.83 1737.28 1514.28 164.58 1258.54 1543.63 173.62 1113.74

2710.00 215.84 2684.38 1701.85 380.85 1864.42 976.34 276.44 1183.34 1490.48 327.38 1990.98 1913.37 428.49 3277.84

13004.66 1063.59 19974.52 13647.72 1105.37 18896.71 12902.17 940.75 15032.93 12858.55 1927.94 14389.81 13283.19 2157.96 16284.36

404.28 75.78 130.73 382.89 24.42 136.77 365.54 24.33 170.14 346.48 25.86 114.69 389.12 28.37 135.80

25.92 15.78 4.60 28.40 65.96 4.86 77.38 230.70 6.07 73.69 286.65 7.10 152.05 251.69 10.56

24.31 11.14 1.99 26.64 46.58 2.10 72.58 162.90 2.63 69.12 202.41 3.07 142.62 177.73 4.57

1.61 4.64 2.61 1.76 19.38 2.76 4.80 67.80 3.44 4.57 84.24 4.03 9.43 73.96 5.99

2.75 658.87 15.28 3.98 623.67 22.83 5.07 327.87 29.69 3.71 437.57 22.09 3.12 480.88 21.76

2.75 4.55 15.28 3.98 4.31 22.83 5.07 2.27 29.69 3.71 3.02 22.09 3.12 3.32 21.76

0.00 654.32 0.00 0.00 619.36 0.00 0.00 325.60 0.00 0.00 434.55 0.00 0.00 477.56 0.00

6900.46 2051.43 1878.40 5704.65 1883.02 1069.13 3665.06 345.95 1463.24 3807.89 350.00 1291.94 2975.54 542.09 1514.24

5694.63 726.76 1750.97 4707.78 667.09 996.60 3024.60 122.56 1363.97 3142.47 123.99 1204.29 2455.57 192.05 1411.51

0.00 209.51 0.00 0.00 192.31 0.00 0.00 35.33 0.00 0.00 35.74 0.00 0.00 55.36 0.00

1205.83 1115.16 127.43 996.87 1023.62 72.53 640.46 188.06 99.27 665.42 190.26 87.65 519.97 294.68 102.73

987.97 467.70 1432.71 926.33 621.69 1407.22 1147.96 392.17 1511.59 1088.41 727.91 1823.89 849.02 1466.66 1752.58

0 0 0

954.03 4342.32 796.36 1300.13 4562.09 612.74 2960.75 1874.72 1924.33 4443.28 1104.45 3478.28 4054.83 933.89 2670.32

0.00 1355.80 0.00 0.00 1424.42 0.00 0.00 585.34 0.00 0.00 344.84 0.00 0.00 291.59 0.00

954.03 2986.52 796.36 1300.13 3137.67 612.74 2960.75 1289.38 1924.33 4443.28 759.61 3478.28 4054.83 642.30 2670.32

1994 1995 1996 1997 1998






















Emissions































NOx

(tpy)

PM10

(tpy)

SO2

(tpy)

NOx

(tpy)

PM10

(tpy)

SO2

(tpy)

NOx

(tpy)

PM10

(tpy)

SO2

(tpy)

NOx

(tpy)

PM10

(tpy)

SO2

(tpy)

NOx

(tpy)

PM10

(tpy)

SO2

(tpy)

1994 1995 1996 1997 1998

2.88 5.61 1.24 3.23 7.53 1.38 3.33 5.78 1.46 2.34 8.04 0.95 1.66 125.93 3.04

0.00 5.56 0.00 0.00 7.47 0.00 0.00 5.73 0.00 0.00 7.97 0.00 0.00 124.85 0.00

2.88 0.05 1.24 3.23 0.06 1.38 3.33 0.05 1.46 2.34 0.07 0.95 1.66 1.08 3.04

579.78 168.31 89.64 1709.18 1040.29 264.24 3283.28 628.30 511.80 3412.50 495.84 525.64 3637.36 671.82 560.28

0.00 29.03 0.00 0.00 179.43 0.00 0.00 108.37 0.00 0.00 85.52 0.00 0.00 115.87 0.00

579.78 139.28 89.64 1709.18 860.86 264.24 3283.28 519.93 511.80 3412.50 410.32 525.64 3637.36 555.95 560.28

4860.15 2355.56 197.11 4678.56 5635.74 188.38 17187.46 2574.72 265.43 17770.99 4342.45 282.67 15352.61 5797.83 278.33

0.00 339.16 0.00 0.00 811.44 0.00 0.00 370.71 0.00 0.00 625.23 0.00 0.00 834.78 0.00

4814.39 1697.53 197.07 4634.51 4061.39 188.34 17025.64 1855.47 265.38 17603.68 3129.38 282.61 15208.07 4178.20 278.27

45.76 318.87 0.04 44.05 762.91 0.04 161.82 348.54 0.05 167.31 587.83 0.05 144.54 784.85 0.05

139.38 182.68 7.72 161.44 194.57 0.58 145.67 212.04 2.03 120.09 206.02 0.45 89.99 220.96 0.53

139.38 158.06 7.72 161.44 168.34 0.58 145.67 183.46 2.03 120.09 178.25 0.45 89.99 191.18 0.53

0.00 24.62 0.00 0.00 26.23 0.00 0.00 28.58 0.00 0.00 27.77 0.00 0.00 29.78 0.00

537.31 21.93 712.30 537.17 24.35 644.26 600.11 21.83 892.08 606.48 35.81 734.19 262.02 26.63 550.95

24667 3827 21422 24495 3952 20871

6883 1866 4869 6133 1649 4216

6075 1624 4263 6919 1941 4743

11709 337 12290 11444 362 11913

5.70 0.19 1.26 5.71 4.61 1.26 5.52 5.80 1.22 5.63 17.39 1.24 5.63 17.39 1.24

4.73 0.09 0.85 4.74 2.21 0.85 4.58 2.78 0.82 4.68 8.34 0.84 4.68 8.34 0.84

0.00 0.03 0.00 0.00 0.70 0.00 0.00 0.88 0.00 0.00 2.63 0.00 0.00 2.63 0.00

0.97 0.07 0.41 0.97 1.70 0.41 0.94 2.14 0.40 0.95 6.42 0.40 0.95 6.42 0.40

15.86 99.43 2.58 15.73 257.08 2.68 23.50 22.14 3.28 102.70 13.13 3.82 125.57 35.07 6.98

9.17 70.62 1.15 9.09 182.59 1.19 13.59 15.72 1.46 59.37 9.33 1.70 72.60 24.91 3.10

6.69 28.81 1.43 6.64 74.49 1.49 9.91 6.42 1.82 43.33 3.80 2.12 52.97 10.16 3.88

27.64 16.66 1.78 42.49 78.71 1.77 50.07 57.36 1.34 37.37 81.69 1.29 42.32 61.94 7.09

10.72 0.25 0.12 16.48 1.17 0.12 19.42 0.85 0.09 14.50 1.21 0.09 16.42 0.92 0.49

16.92 12.72 1.66 26.01 60.10 1.65 30.65 43.80 1.25 22.87 62.37 1.20 25.90 47.29 6.60

0.00 3.69 0.00 0.00 17.44 0.00 0.00 12.71 0.00 0.00 18.10 0.00 0.00 13.73 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

84.88 74.74 278.51 71.96 108.50 118.25 59.80 117.42 109.45 58.12 97.07 103.96 75.52 77.56 123.22

5.53 54.82 6.12 4.69 79.59 2.60 3.89 86.13 2.40 3.78 71.20 2.28 4.92 56.89 2.71

79.35 19.92 272.39 67.27 28.91 115.65 55.91 31.29 107.05 54.34 25.87 101.68 70.60 20.67 120.51

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

439.26 12612.13 1881.08 774.75 11088.76 219.59 736.95 2791.38 1603.94 735.25 2733.43 1080.57 692.77 3196.42 1033.80

0.00 6.79 0.00 0.00 5.97 0.00 0.00 1.50 0.00 0.00 1.47 0.00 0.00 1.72 0.00

434.10 10395.72 1870.38 765.65 9140.06 218.34 728.30 2300.83 1594.82 726.62 2253.07 1074.43 684.63 2634.69 1027.92

5.16 2209.63 10.70 9.10 1942.74 1.25 8.65 489.05 9.12 8.63 478.89 6.14 8.14 560.01 5.88

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

293.22 49.38 231.25 228.44 117.97 271.61 734.87 111.27 903.41 734.87 111.27 903.41 820.19 115.19 939.01

293.22 17.69 231.25 228.44 42.26 271.61 734.87 39.86 903.41 734.87 39.86 903.41 820.19 41.26 939.01

0.00 31.69 0.00 0.00 75.71 0.00 0.00 71.41 0.00 0.00 71.41 0.00 0.00 73.93 0.00

5.72 31.07 1.24 5.80 53.67 0.52 26.12 17.70 1.40 24.32 13.40 1.32 12.44 20.30 0.64














ME Global 13700073





Range 07500005


















NOx

(tpy)

PM10

(tpy)

SO2

(tpy)

NOx

(tpy)

PM10

(tpy)

SO2

(tpy)

NOx

(tpy)

PM10

(tpy)

SO2

(tpy)

NOx

(tpy)

PM10

(tpy)

SO2

(tpy)

NOx

(tpy)

PM10

(tpy)

SO2

(tpy)

1994 1995 1996 1997 1998

0.00 4.06 0.00 0.00 7.01 0.00 0.00 2.31 0.00 0.00 1.75 0.00 0.00 2.65 0.00

5.72 27.01 1.24 5.80 46.66 0.52 26.12 15.39 1.40 24.32 11.65 1.32 12.44 17.65 0.64

0 0 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0 0 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0 0 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

0 0 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0 0 0

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

15.97 6.1 5.38 16.18 8.92 5.41 69.4 29.43 6.48 76.29 44.1 11.16

0.07 7.48 0 0.09 20.79 0.01

0 0 0

0 0 0

0 0 0 0.00 0.00 0.00

0 0 0 0.00 0.00 0.00 0.51 0.11 0.03

0 0 0 0.00 0.00 0.00 0.00 0.00 0.00

0 0 0 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0 0 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0 0 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 4.77 1.57 0.31

0 0 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0 0 0 0.00 0.00 0.00 3.87 17.34 0.25

0 0 0 0.00 0.00 0.00 13.44 2.56 0.88

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0


















Essar 06100067

Essar 06100067






























PolyMet (EIS Only)

PolyMet (EIS Only)

PolyMet (EIS Only)






NOx

(tpy)

PM10

(tpy)

SO2

(tpy)

NOx

(tpy)

PM10

(tpy)

SO2

(tpy)

NOx

(tpy)

PM10

(tpy)

SO2

(tpy)

NOx

(tpy)

PM10

(tpy)

SO2

(tpy)

NOx

(tpy)

PM10

(tpy)

SO2

(tpy)

642.92 135.49 1036.29 848.58 126.88 711.63 748.77 97.25 615.93 433.66 82.91 304.28 613.06 199.63 438.07

640.84 110.25 1034.20 845.83 103.24 710.20 746.35 79.13 614.69 432.26 67.46 303.67 611.08 162.44 437.19

2.08 25.24 2.09 2.75 23.64 1.43 2.42 18.12 1.24 1.40 15.45 0.61 1.98 37.19 0.88

893.03 233.89 763.53 863.67 227.93 966.19 916.66 261.10 903.55 668.04 208.51 687.03 807.38 263.35 786.01

828.54 97.27 762.60 801.30 94.79 965.01 850.46 108.58 902.45 619.80 86.71 686.19 749.07 109.52 785.05

64.49 136.62 0.93 62.37 133.14 1.18 66.20 152.52 1.10 48.24 121.80 0.84 58.31 153.83 0.96

2481.54 700.43 129.90 2481.54 671.43 129.90 2177.69 586.24 131.85 3254.28 610.25 250.81 2293.18 614.05 154.92

0.00 233.31 0.00 0.00 223.65 0.00 0.00 195.28 0.00 0.00 203.27 0.00 0.00 204.54 0.00

2481.54 467.12 129.90 2481.54 447.78 129.90 2177.69 390.96 131.85 3254.28 406.98 250.81 2293.18 409.51 154.92

565.18 129.83 22.73 573.22 114.92 30.74 473.67 118.94 129.05 416.27 227.06 43.50 437.53 128.26 49.82

541.73 123.56 22.71 549.44 109.37 30.71 454.02 113.20 128.92 399.00 216.09 43.46 419.38 122.07 49.77

23.45 6.27 0.02 23.78 5.55 0.03 19.65 5.74 0.13 17.27 10.97 0.04 18.15 6.19 0.05

803.91 284.37 96.26 650.79 224.70 57.14 668.24 117.51 71.26 845.74 104.90 67.83 919.23 113.12 78.47

0.00 12.23 0.00 0.08 15.47 0.20 0.01 11.93 0.00 1.99 8.11 0.10 1.94 3.33 0.10

549.64 122.75 248.21 562.85 125.24 203.18 605.16 90.03 218.20 329.26 50.61 285.29 349.97 35.32 288.92

759.62 60.88 647.23 308.53 27.12 347.13 294.36 25.67 302.40 282.52 24.66 256.86 364.67 31.83 343.74

5548.58 1249.15 531.22 6634.09 1446.85 633.80 4770.10 1141.47 455.79 6202.58 1498.81 592.73 6911.72 1542.40 661.72

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

35.19 44.16 0.31 28.76 7.70 0.27 38.80 11.29 1.48 31.56 9.57 45.60 30.40 9.57 48.08

35.19 13.18 0.31 28.76 2.30 0.27 38.80 3.37 1.48 31.56 2.86 45.60 30.40 2.86 48.08

0.00 30.98 0.00 0.00 5.40 0.00 0.00 7.92 0.00 0.00 6.71 0.00 0.00 6.71 0.00

12.03 6.40 1.48 16.66 6.22 3.60 15.56 7.74 2.33 19.70 6.69 3.46 18.18 6.02 3.89

12.03 0.63 1.48 16.66 0.61 3.60 15.56 0.76 2.33 19.70 0.66 3.46 18.18 0.59 3.89

0.00 5.77 0.00 0.00 5.61 0.00 0.00 6.98 0.00 0.00 6.03 0.00 0.00 5.43 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1661.05 174.91 1008.45 1801.59 186.34 1508.10 1947.20 199.09 1610.00 2176.12 153.02 1607.73 2438.21 160.67 1605.20

2660.00 371.43 2961.02 2783.86 340.73 3254.82 91.84 7.06 91.06 2309.42 172.14 3112.44 3372.49 296.39 5502.42

11802.79 1973.61 17343.20 12220.82 2189.19 15153.56 13336.58 2196.20 18583.16 14527.91 2808.41 21169.97 14895.21 2872.47 19975.49

448.60 39.32 97.50 435.39 43.30 107.60 526.31 44.09 189.81 414.28 34.42 131.80 356.03 30.31 99.10

180.18 259.82 9.27 180.72 249.29 9.34 151.80 208.19 9.55 155.90 203.67 14.00 163.90 219.18 14.34

169.00 183.47 4.01 169.51 176.03 4.04 142.38 147.01 4.13 146.23 143.82 6.06 153.73 154.77 6.20

11.18 76.35 5.26 11.21 73.26 5.30 9.42 61.18 5.42 9.67 59.85 7.94 10.17 64.41 8.14

2.61 432.72 18.20 4.39 236.13 30.15 2.06 175.55 14.56 3.98 223.09 23.79 5.50 156.20 37.67

2.61 2.99 18.20 4.39 1.63 30.15 2.06 1.21 14.56 3.98 1.54 23.79 5.50 1.08 37.67

0.00 429.73 0.00 0.00 234.50 0.00 0.00 174.34 0.00 0.00 221.55 0.00 0.00 155.12 0.00

3247.65 500.91 1869.52 3822.40 860.35 2059.94 3112.45 504.99 1855.49 3911.32 547.13 2291.14 4053.86 589.22 2369.40

2680.13 177.46 1742.69 3154.45 304.79 1920.19 2568.56 178.90 1729.61 3227.83 193.83 2135.71 3345.46 208.74 2208.66

0.00 51.16 0.00 0.00 87.87 0.00 0.00 51.57 0.00 0.00 55.88 0.00 0.00 60.18 0.00

567.52 272.30 126.83 667.95 467.69 139.75 543.89 274.51 125.88 683.49 297.42 155.43 708.40 320.30 160.74

1043.17 676.17 1520.93 1391.33 542.75 1297.98 1145.12 443.13 418.28 1196.04 155.44 190.29 1095.01 155.81 207.69

26.43 5.40 2.34 20.70 4.24 1.83 17.91 5.13 0.18 23.21 6.40 0.22 0.00 0.00 0.00

2782.35 735.86 2645.12 1509.87 792.60 3287.91 1864.54 872.39 3276.59 1771.28 809.42 3222.27 718.86 415.68 1330.80

0.00 229.76 0.00 0.00 247.47 0.00 0.00 272.39 0.00 0.00 252.73 0.00 0.00 129.79 0.00

2782.35 506.10 2645.12 1509.87 545.13 3287.91 1864.54 600.00 3276.59 1771.28 556.69 3222.27 718.86 285.89 1330.80

1999 2000 20022001 2003






















Emissions































NOx

(tpy)

PM10

(tpy)

SO2

(tpy)

NOx

(tpy)

PM10

(tpy)

SO2

(tpy)

NOx

(tpy)

PM10

(tpy)

SO2

(tpy)

NOx

(tpy)

PM10

(tpy)

SO2

(tpy)

NOx

(tpy)

PM10

(tpy)

SO2

(tpy)

1999 2000 20022001 2003

2.98 107.61 1.04 1.84 103.64 1.27 2.16 142.47 0.81 2.10 151.69 0.02 1.92 44.79 0.01

0.00 106.68 0.00 0.00 102.75 0.00 0.00 141.24 0.00 0.00 150.38 0.00 0.00 44.40 0.00

2.98 0.93 1.04 1.84 0.89 1.27 2.16 1.23 0.81 2.10 1.31 0.02 1.92 0.39 0.01

3671.01 750.97 117.56 6078.70 1499.74 707.30 4849.68 1120.75 564.28 6049.44 1476.14 703.88 4868.84 1263.39 566.52

0.00 129.53 0.00 0.00 258.67 0.00 0.00 193.31 0.00 0.00 254.60 0.00 0.00 217.91 0.00

3671.01 621.44 117.56 6078.70 1241.07 707.30 4849.68 927.44 564.28 6049.44 1221.54 703.88 4868.84 1045.48 566.52

14515.87 5283.62 1815.69 13030.46 8634.60 2088.83 11061.75 6038.45 1810.10 14927.76 6651.19 1946.24 9119.82 8174.35 1864.19

0.00 760.75 0.01 0.00 1243.23 0.01 0.00 869.43 0.01 0.00 957.65 0.01 0.00 1176.96 0.01

14379.21 3807.64 1815.33 12907.78 6222.52 2088.41 10957.61 4351.60 1809.74 14787.22 4793.17 1945.85 9033.96 5890.84 1863.82

136.66 715.24 0.35 122.68 1168.86 0.40 104.14 817.42 0.35 140.54 900.37 0.38 85.86 1106.55 0.36

96.14 236.06 0.58 91.27 281.04 0.55 91.85 292.52 0.55 93.84 298.02 0.56 99.44 295.36 0.60

96.14 204.24 0.58 91.27 243.16 0.55 91.85 253.09 0.55 93.84 257.85 0.56 99.44 255.55 0.60

0.00 31.82 0.00 0.00 37.88 0.00 0.00 39.43 0.00 0.00 40.17 0.00 0.00 39.81 0.00

252.81 27.10 474.64 337.76 45.86 435.35 334.89 43.61 381.23 327.11 41.81 386.28 333.24 40.74 363.14

16.70 0.89 0.83 15.26 8.71 0.77 22.46 18.10 2.55 33.14 21.25 3.77 37.02 17.97 4.21

13.87 0.43 0.56 12.67 4.18 0.52 18.65 8.68 1.72 27.52 10.19 2.54 30.74 8.62 2.84

0.00 0.13 0.00 0.00 1.32 0.00 0.00 2.74 0.00 0.00 3.22 0.00 0.00 2.72 0.00

2.83 0.33 0.27 2.59 3.21 0.25 3.81 6.68 0.83 5.62 7.84 1.23 6.28 6.63 1.37

127.16 34.03 7.26 176.50 92.29 7.14 108.63 38.71 9.36 223.82 47.85 19.68 207.40 61.45 21.77

73.51 24.17 3.23 102.04 65.55 3.17 62.80 27.49 4.16 129.40 33.99 8.75 119.90 43.64 9.68

53.65 9.86 4.03 74.46 26.74 3.97 45.83 11.22 5.20 94.42 13.86 10.93 87.50 17.81 12.09

42.28 53.17 7.76 371.95 133.72 27.72 378.77 64.74 27.80 104.66 58.83 1.70 107.52 77.87 1.56

16.40 0.79 0.53 144.29 1.98 1.91 146.93 0.96 1.91 40.60 0.87 0.12 41.71 1.16 0.11

25.88 40.60 7.23 227.66 102.10 25.81 231.84 49.43 25.89 64.06 44.92 1.58 65.81 59.46 1.45

0.00 11.78 0.00 0.00 29.64 0.00 0.00 14.35 0.00 0.00 13.04 0.00 0.00 17.26 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

75.16 290.95 138.18 52.76 85.59 125.85 61.59 71.20 206.66 67.67 62.05 306.56 83.68 49.90 229.15

4.89 213.42 3.04 3.44 62.78 2.76 4.01 52.23 4.54 4.41 45.51 6.74 5.45 36.60 5.03

70.27 77.53 135.14 49.32 22.81 123.09 57.58 18.97 202.12 63.26 16.54 299.82 78.23 13.30 224.12

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0 0 0

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

889.58 5471.89 936.50 737.63 4394.73 1136.57 12.30 65.48 19.14 0.00 20.19 0.00 0.00 9.39 0.00

0.00 2.94 0.00 0.00 2.36 0.00 0.00 0.04 0.00 0.00 0.01 0.00 0.00 0.01 0.00

879.13 4510.28 931.17 728.97 3622.41 1130.11 12.16 53.97 19.03 0.00 16.64 0.00 0.00 7.74 0.00

10.45 958.67 5.33 8.66 769.95 6.46 0.14 11.47 0.11 0.00 3.54 0.00 0.00 1.65 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

675.567 135.372 942.783 685.682 127.656 907.698 646.125 131.874 682.615 750.25 44.415 867.202 723.41 44.531 884.051

675.57 48.49 942.78 685.68 45.73 907.70 646.13 47.24 682.62 750.25 15.91 867.20 723.41 15.95 884.05

0.00 86.88 0.00 0.00 81.93 0.00 0.00 84.64 0.00 0.00 28.51 0.00 0.00 28.58 0.00

11.49 33.61 0.57 9.48 28.44 0.47 10.46 27.77 0.53 30.19 15.98 1.54 29.48 22.21 3.35














ME Global 13700073





Range 07500005


















NOx

(tpy)

PM10

(tpy)

SO2

(tpy)

NOx

(tpy)

PM10

(tpy)

SO2

(tpy)

NOx

(tpy)

PM10

(tpy)

SO2

(tpy)

NOx

(tpy)

PM10

(tpy)

SO2

(tpy)

NOx

(tpy)

PM10

(tpy)

SO2

(tpy)

1999 2000 20022001 2003

0.00 4.39 0.00 0.00 3.72 0.00 0.00 3.63 0.00 0.00 2.09 0.00 0.00 2.90 0.00

11.49 29.22 0.57 9.48 24.72 0.47 10.46 24.14 0.53 30.19 13.89 1.54 29.48 19.31 3.35

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

43.54 32.27 2.07 40.75 27.69 1.39 61.20 14.78 1.03 37.86 15.76 0.97 37.05 14.57 1.03

43.54 10.76 2.07 40.75 9.23 1.39 61.20 4.93 1.03 37.86 5.25 0.97 37.05 4.86 1.03

0.00 21.52 0.00 0.00 18.46 0.00 0.00 9.85 0.00 0.00 10.50 0.00 0.00 9.71 0.00

0.00 18.51 0.00 0.00 18.72 0.00 0.00 11.87 0.00 0.00 8.51 0.00 0.00 8.15 0.00

15.82 1.55 8.44 11.34 1.18 6.53 13.46 1.28 4.96 15.49 1.22 0.93 7.95 1.26 15.28

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.45 0.10 0.03 0.45 0.10 0.03 0.45 0.11 0.03 0.45 0.11 0.03 0.53 0.13 0.03

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 32.28 0.00 0.00 80.52 0.00 0.00 54.26 0.00 0.00 63.78 0.00 0.00 49.18 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.08 0.38 0.00 0.00 0.00 0.00 0.08 0.60 0.00

5.58 1.57 0.37 7.51 1.67 0.49 7.21 1.48 0.47 4.14 0.94 0.27 3.91 0.75 0.26

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

4.27 64.85 0.28 4.70 36.11 0.31 3.38 25.78 0.22 0.11 0.03 0.01 1.14 11.50 0.07

6.49 1.53 0.43 4.01 0.87 0.26 6.89 5.43 0.45 7.35 8.70 0.48 6.04 10.02 0.40

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0


















Essar 06100067

Essar 06100067






























PolyMet (EIS Only)

PolyMet (EIS Only)

PolyMet (EIS Only)






NOx

(tpy)

PM10

(tpy)

SO2

(tpy)

NOx

(tpy)

PM10

(tpy)

SO2

(tpy)

NOx

(tpy)

PM10

(tpy)

SO2

(tpy)

NOx

(tpy)

PM10

(tpy)

SO2

(tpy)

NOx

(tpy)

PM10

(tpy)

SO2

(tpy)

660.84 211.50 482.52 691.29 206.35 496.15 578.85 176.33 407.10 732.61 188.91 516.77 974.19 275.42 623.59

658.70 172.09 481.55 689.05 167.91 495.15 576.98 143.48 406.28 730.24 153.71 515.73 971.04 224.11 622.33

2.14 39.40 0.97 2.24 38.44 1.00 1.87 32.85 0.82 2.37 35.20 1.04 3.15 51.31 1.25

853.08 386.99 848.80 841.51 354.12 806.75 934.66 374.52 727.76 907.15 376.80 714.4 842.49 346.24 678.18

791.47 160.94 847.77 780.74 147.27 805.77 867.16 155.75 726.87 841.64 156.70 713.53 781.65 143.99 677.35

61.61 226.06 1.03 60.77 206.85 0.98 67.50 218.77 0.89 65.51 220.10 0.87 60.84 202.25 0.83

2827.41 646.53 162.84 2848.49 657.54 146.72 2945.94 685.79 159.52 2918.46 753.19 41.58 2655.44 626.95 149.71

0.00 215.36 0.00 0.00 219.03 0.00 0.00 228.44 0.00 0.00 250.89 0.00 0.00 208.84 0.00

2827.41 431.17 162.84 2848.49 438.51 146.72 2945.94 457.35 159.52 2918.46 502.30 41.58 2655.44 418.11 149.71

455.15 101.85 108.21 458.49 41.02 69.30 546.45 40.15 66.40 575.62 40.50 139.55 539.41 24.70 115.17

436.27 96.93 108.10 439.47 39.04 69.23 523.78 38.21 66.33 551.74 38.54 139.41 517.03 23.50 115.06

18.88 4.92 0.11 19.02 1.98 0.07 22.67 1.94 0.07 23.88 1.96 0.14 22.38 1.19 0.12

862.73 101.68 69.13 832.28 101.59 81.90 870.04 106.89 50.61 829.31 111.67 94.89 839.36 102.98 84.17

0.47 4.35 0.40 0.37 14.97 0.01 0.34 15.32 0.01 0.37 15.10 0.01 0.60 15.28 0.01

334.56 31.98 273.04 354.74 32.11 294.49 509.40 54.68 385.16 419.8 20.82 429.15 353.91 24.93 397.64

495.50 7.60 3.90

392.09 34.22 384.38 404.53 198.87 371.34 371.00 40.87 399.22 588.55 62.88 592.84 594.99 64.41 798.89

6187.24 1254.67 518.01 6217.31 1400.71 446.69 5549.73 1442.92 401.85 4114.05 1531.15 385.79 4539.19 1773.37 417.21

0 0 0 0 0 0 0.00 0.00 0.00 0 0 0 1.16 90.05 0.04

32.45 9.49 44.00 32.58 9.48 44.99 27.30 8.98 27.12 29.67 9.55 42.45 27.94 9.06 44.90

32.45 2.83 44.00 32.58 2.83 44.99 27.30 2.68 27.12 29.67 2.85 42.45 27.94 2.70 44.90

0.00 6.66 0.00 0.00 6.65 0.00 0.00 6.30 0.00 0.00 6.70 0.00 0.00 6.35 0.00

20.82 5.05 3.84 16.76 4.41 3.81 13.69 4.22 3.05 23.76 15.54 3.13 21.21 14.90 2.63

20.82 0.49 3.84 16.76 0.43 3.81 13.69 0.41 3.05 23.76 1.52 3.13 21.21 1.46 2.63

0.00 4.56 0.00 0.00 3.98 0.00 0.00 3.81 0.00 0.00 14.02 0.00 0.00 13.44 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0 0.00 0 0 0 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

2298.89 156.04 1615.09 2529.76 173.68 1840.89 2247.46 155.55 1610.90 931.98 298.2 1341.22 905.21 331.88 1440.90

3373.17 292.01 5572.59 3216.96 916.61 5234.90 3219.51 946.56 5386.90 2987.77 1003.39 5062.02 2350.92 744.03 4719.51

12622.13 2434.34 19731.48 14256.89 2777.75 19962.23 13369.76 2606.78 20406.65 14429.72 3354.44 21579.64 15464.27 3580.66 21524.93

1283.94 2695.40 1370.65 2833.4

626.34 39.70 315.40 693.17 40.60 322.89 767.17 41.41 356.90 726.65 36.19 354.3 793.50 38.76 441.90

199.05 178.58 14.25 241.04 162.25 14.43 242.90 84.50 14.62 184.85 96.99 15.26 164.47 77.62 14.10

186.70 126.10 6.16 226.08 114.57 6.24 227.83 59.67 6.32 173.38 68.49 6.60 154.26 54.81 6.10

12.35 52.48 8.09 14.96 47.68 8.19 15.07 24.83 8.30 11.47 28.50 8.66 10.21 22.81 8.00

8.02 124.57 54.51 4.45 262.80 30.58 4.08 278.83 28.02 4.6 283.57 31.61 5.50 356.70 37.72

8.02 0.86 54.51 4.45 1.82 30.58 4.08 1.93 28.02 4.60 1.96 31.61 5.50 2.46 37.72

0.00 123.71 0.00 0.00 260.98 0.00 0.00 276.90 0.00 0.00 281.61 0.00 0.00 354.23 0.00

4079.82 705.71 2880.12 4201.05 1036.92 2671.86 3724.42 1074.90 2780.18 3897.24 940.56 2935.41 3646.46 997.97 2311.61

3366.88 250.01 2684.73 3466.93 367.35 2490.60 3073.59 380.80 2591.57 3216.21 333.21 2736.27 3009.25 353.55 2154.79

0.00 72.07 0.00 0.00 105.90 0.00 0.00 109.78 0.00 0.00 96.06 0.00 0.00 101.92 0.00

712.94 383.63 195.39 734.12 563.67 181.26 650.83 584.32 188.61 681.03 511.29 199.14 637.21 542.50 156.82

1318.81 232.50 465.12 921.75 209.45 383.47 1155.47 197.83 210.52 1215.66 176.08 268.15 1181.81 206.24 181.63

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 61.00 0.86 0.75

2204.43 657.99 2501.38 3774.38 799.20 2467.14 3384.32 770.11 3312.27 4263.22 1039.26 3653.75 3540.37 645.68 3726.41

0.00 205.44 0.00 0.00 249.53 0.00 0.00 240.45 0.00 0.00 324.49 0.00 0.00 201.60 0.00

2204.43 452.55 2501.38 3774.38 549.67 2467.14 3384.32 529.66 3312.27 4263.22 714.77 3653.75 3540.37 444.08 3726.41

2004 2005 2006 20082007






















Emissions































NOx

(tpy)

PM10

(tpy)

SO2

(tpy)

NOx

(tpy)

PM10

(tpy)

SO2

(tpy)

NOx

(tpy)

PM10

(tpy)

SO2

(tpy)

NOx

(tpy)

PM10

(tpy)

SO2

(tpy)

NOx

(tpy)

PM10

(tpy)

SO2

(tpy)

2004 2005 2006 20082007

1.43 89.20 0.01 1.26 152.06 0.08 2.87 154.82 0.01 1.9 136.10 0.01 1.75 154.57 0.01

0.00 88.43 0.00 0.00 150.75 0.00 0.00 153.49 0.00 0.00 134.93 0.00 0.00 153.24 0.00

1.43 0.77 0.01 1.26 1.31 0.08 2.87 1.33 0.01 1.90 1.17 0.01 1.75 1.33 0.01

5925.52 1519.28 689.00 5803.31 1354.11 758.82 3386.70 791.39 791.11 3618.7 795.14 788.21 3471.34 712.08 790.65

0.00 262.04 0.00 0.00 233.56 0.00 0.00 136.50 0.00 0.00 137.15 0.00 0.00 122.82 0.00

5925.52 1257.24 689.00 5803.31 1120.55 758.82 3386.70 654.89 791.11 3618.70 657.99 788.21 3471.34 589.26 790.65

12491.64 8871.29 1984.00 9659.72 4294.45 2019.82 8543.48 3859.12 2055.79 10246.67 3406.99 1811.43 12253.13 3783.99 1911.87

0.00 1277.30 0.01 0.00 618.32 0.01 0.00 555.64 0.01 0.00 490.54 0.01 0.00 544.83 0.01

12374.03 6393.08 1983.61 9568.78 3094.79 2019.42 8463.04 2781.07 2055.38 10150.20 2455.24 1811.07 12137.77 2726.93 1911.49

117.61 1200.90 0.38 90.94 581.34 0.39 80.44 522.41 0.40 96.47 461.20 0.35 115.36 512.24 0.37

97.96 414.72 0.59 103.14 295.07 0.62 100.88 280.98 0.59 98.41 176.69 0.57 90.87 154.63 0.54

97.96 358.82 0.59 103.14 255.30 0.62 100.88 243.11 0.59 98.41 152.87 0.57 90.87 133.79 0.54

0.00 55.90 0.00 0.00 39.77 0.00 0.00 37.87 0.00 0.00 23.82 0.00 0.00 20.84 0.00

286.56 40.26 324.07 307.41 33.86 354.27 270.92 37.68 319.77 467.01 49.50 571.9 444.83 50.64 805.37

25190 2472 24742 25684 2429 25493 17718.58 2259.37 23419.58

896.5 7187 556.6 5751 4071.4 671.161 7049.6

762.3 6111 725.6 7636 3930.6 646.049 6806

813.5 11443 1146.5 12107 9710.7 851.689 9563.6

378.77 148.02 36.29 222.01 83.24 39.95 189.84 57.73 31.79 60.22 28.60 16.8 49.12 24.64 14.44

314.55 70.99 24.50 184.37 39.92 26.97 157.65 27.69 21.46 50.01 13.72 11.34 33.16 16.63 9.75

0.00 22.40 0.00 0.00 12.60 0.00 0.00 8.74 0.00 0.00 4.33 0.00 0.00 0.00 0.00

64.22 54.64 11.79 37.64 30.72 12.98 32.19 21.31 10.33 10.21 10.56 5.46 15.96 8.01 4.69

214.96 59.31 21.17 206.80 56.72 19.64 162.63 41.68 14.31 144.45 35.58 11.72 62.90 5.36 4.73

124.27 42.12 9.41 119.56 40.29 8.73 94.02 29.60 6.36 83.51 25.27 5.21 0.00 0.00 0.00

90.69 17.18 11.76 87.24 16.43 10.91 68.61 12.08 7.95 60.94 10.31 6.51 0.00 0.00 0.00

103.97 38.12 1.66 92.74 44.16 1.87 49.68 32.45 0.97 0.00 0.00 0.00 0.00 0.00 0.00

40.33 0.57 0.11 35.98 0.66 0.13 19.27 0.48 0.07 0.00 0.00 0.00 0.00 0.00 0.00

63.64 29.10 1.55 56.76 33.72 1.74 30.41 24.78 0.90 0.00 0.00 0.00 0.00 0.00 0.00

0.00 8.45 0.00 0.00 9.79 0.00 0.00 7.19 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 17.23 0.00

106.91 67.46 340.40 104.35 66.14 306.12 95.37 68.43 215.88 89.53 63.47 200.27 93.82 70.50 183.54

6.96 49.48 7.48 6.80 48.52 6.73 6.21 50.19 4.74 5.83 46.56 4.40 6.11 51.71 4.03

99.95 17.98 332.92 97.55 17.62 299.39 89.16 18.24 211.14 83.70 16.91 195.87 87.71 18.79 179.51

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 3.17 0.00 0.00 3.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 2.61 0.00 0.00 2.47 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.56 0.00 0.00 0.53 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

664.391 47.889 949.462 652.461 48.103 927.553 673.95 44.98 816.40 679.68 47.66 885.06 611.18 49.43 784.87

664.39 17.15 949.46 652.46 17.23 927.55 673.95 16.11 816.40 679.68 17.07 885.06 611.18 17.71 784.87

0.00 30.73 0.00 0.00 30.87 0.00 0.00 28.87 0.00 0.00 30.59 0.00 0.00 31.73 0.00

24.00 34.95 2.72 23.88 23.38 2.72 11.84 20.22 1.36 19.12 20.00 2.16 13.68 20.62 1.56














ME Global 13700073





Range 07500005


















NOx

(tpy)

PM10

(tpy)

SO2

(tpy)

NOx

(tpy)

PM10

(tpy)

SO2

(tpy)

NOx

(tpy)

PM10

(tpy)

SO2

(tpy)

NOx

(tpy)

PM10

(tpy)

SO2

(tpy)

NOx

(tpy)

PM10

(tpy)

SO2

(tpy)

2004 2005 2006 20082007

0.00 4.57 0.00 0.00 3.06 0.00 0.00 2.64 0.00 0.00 2.61 0.00 0.00 2.69 0.00

24.00 30.38 2.72 23.88 20.32 2.72 11.84 17.58 1.36 19.12 17.39 2.16 13.68 17.92 1.56

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

2.50 0.18 0.16 7.13 0.50 0.47 3.25 0.23 0.21 9.66 0.68 0.64 1.48 0.10 0.10

0 0 0 0 0 0 17.66 74.39 0.28 19.72 72.22 0.88 20.57 43.39 0.97

0 0 0 0 0 0 9.24 22.63 0.06 6.04 12.89 0.04 4.61 8.77 0.03

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

38.19 14.45 1.17 39.35 9.68 1.17 38.28 12.72 0.98 31.28 10.23 0.83 33.60 11.50 0.78

38.19 4.82 1.17 39.35 3.23 1.17 38.28 4.24 0.98 31.28 3.41 0.83 33.60 3.83 0.78

0.00 9.64 0.00 0.00 6.45 0.00 0.00 8.48 0.00 0.00 6.82 0.00 0.00 7.67 0.00

20.30 44.81 9.35 23.85 52.45 11.16 24.97 55.12 12.51

3.65 52.62 0.40 3.64 37.41 0.33 3.44 26.60 0.23

0.00 7.04 0.00 0.00 9.30 0.00 0.00 8.50 0.00 0.00 8.07 0.00 0.00 10.45 0.00

17.24 1.91 13.61 19.96 1.50 2.54 57.48 4.47 9.84 16.21 1.25 1.19 17.92 1.34 0.14

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 40.62 0.00

0.48 0.11 0.03 0.60 0.12 0.04 0.60 0.13 0.04 0.54 0.11 0.04 0.45 0.09 0.03

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 85.76 0.00 0.00 69.36 0.00 0.00 85.13 0.00 0.00 138.34 0.00 0.00 62.98 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0 0 0 0 0 0

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.24 0.02 0.02 0.20 0.10 0.01 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

3.91 0.92 0.26 1.18 0.35 0.08 3.56 0.77 0.23 1.21 0.32 0.08 0.54 0.10 0.04

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

6.16 62.18 0.40 4.29 43.30 0.28 3.97 40.12 0.26 5.39 41.15 0.35 3.28 33.08 0.22

8.16 2.33 0.54 9.07 3.26 0.60 10.23 3.60 0.67 9.10 3.38 0.60 4.13 1.53 0.27

0 0 0 0 0 0 0.00 0.00 0.00 0 0 0 0.00 0.00 0.00

0 0 0 0 0 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0 0 0 0 0 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0 0 0 0 0 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00


















Essar 06100067

Essar 06100067






























PolyMet (EIS Only)

PolyMet (EIS Only)

PolyMet (EIS Only)






NOx

(tpy)

PM10

(tpy)

SO2

(tpy)

NOx

(tpy)

SO2

(tpy)

PM10

(tpy)

Primary

PM2.5

(tpy)

Secondary

Formation

PM2.5

(tpy)

Total

PM2.5

(tpy)

NOx

(tpy)

SO2

(tpy)

PM10

(tpy)

Primary

PM2.5

(tpy)

Secondary

Formation

PM2.5

(tpy)

Total

PM2.5

(tpy)

965.79 231.27 618.11 1036.48 664.23 209.64 51.69 57.74 109.43 592.00 606.42 232.72 166.30 48.12 214.41

962.67 188.18 616.86 1033.12 662.89 170.59 42.06 46.98 89.04 590.09 605.20 189.36 135.31 39.15 174.47

3.12 43.09 1.24 3.35 1.34 39.06 9.63 10.76 20.39 1.92 1.22 43.36 30.98 8.96 39.95

829.39 379.56 725.54 860.29 1161.67 336.33 92.22 88.62 180.84 707.68 1043.08 565.73 399.22 78.73 477.95

769.49 157.85 724.66 798.16 1160.26 139.87 38.35 36.85 75.20 656.57 1041.80 235.27 166.02 32.74 198.76

59.89 221.71 0.88 62.13 1.41 196.46 53.87 51.76 105.63 51.11 1.27 330.46 233.20 45.99 279.19

1808.73 356.91 54.61 3271.85 101.41 654.55 232.74 49.25 281.99 3348.63 102.80 529.01 122.85 50.34 173.20

0.00 118.89 0.00 0.00 0.00 218.03 77.53 16.41 93.93 0.00 0.00 176.21 40.92 16.77 57.69

1808.73 238.03 54.61 3271.85 101.41 436.52 155.21 32.85 188.06 3348.63 102.80 352.80 81.93 33.57 115.51

538.11 22.09 119.35 728.17 341.24 25.31 13.84 32.21 46.05 522.18 122.99 41.72 28.75 14.98 43.73

515.78 21.02 119.23 697.96 340.90 24.09 13.17 30.65 43.82 500.52 122.87 39.70 27.36 14.26 41.62

22.32 1.07 0.12 30.21 0.34 1.22 0.67 1.56 2.22 21.66 0.12 2.01 1.39 0.72 2.11

824.43 97.18 64.55 852.59 62.21 110.29 90.69 15.22 105.91 840.24 61.89 80.69 54.89 15.04 69.93

0.36 14.41 0.01 0.44 0.01 14.82 0.01 0.01 0.32 0.01 28.48 23.10 0.00 23.10

382.84 27.41 402.99 330.53 363.24 21.09 5.76 28.51 34.27 336.48 371.97 2.63 2.41 29.17 31.58

688.90 65.55 1011.71 610.13 595.38 47.47 22.26 47.62 69.88 481.19 344.59 35.99 18.17 29.22 47.39

983.72 691.57 94.68 3627.80 618.00 1286.56 288.34 88.31 376.65 4758.00 826.90 1697.57 684.96 116.92 801.88

0.99 63.22 0.03 0.94 32.70 42.78 2.19 2.19 1.22 0.04 118.95 87.56 0.02 87.58

27.75 9.30 33.56 22.90 35.46 47.71 22.74 2.66 25.40 26.78 28.70 77.73 44.38 2.26 46.64

27.75 2.77 33.56 22.90 35.46 14.24 6.79 0.79 7.58 26.78 28.70 23.20 13.25 0.67 13.92

0.00 6.52 0.00 0.00 0.00 33.47 15.95 1.87 17.82 0.00 0.00 54.53 31.14 1.59 32.72

18.91 14.09 2.35 16.38 1.42 18.39 11.35 0.31 11.66 19.23 1.49 25.38 19.69 0.35 20.04

18.91 1.38 2.35 16.38 1.42 1.80 1.11 0.03 1.14 19.23 1.49 2.49 1.93 0.03 1.96

0.00 12.71 0.00 0.00 0.00 16.58 10.24 0.28 10.52 0.00 0.00 22.90 17.76 0.32 18.08

0.00 234.42 0.00 161.71 37.73 111.36 18.60 4.62 23.22 335.39 3.84 303.43 207.11 4.61 211.72

0.00 231.70 0.00 161.71 37.73 110.07 0.00 0.00 0.00 335.39 3.84 299.90 0.00 0.00 0.00

0.00 2.73 0.00 0.00 0.00 1.29 0.00 0.00 0.00 0.00 0.00 3.53 0.00 0.00 0.00

650.30 237.14 1254.00 638.24 560.60 236.03 168.35 45.66 214.01 575.09 538.90 236.92 83.73 43.40 127.13

1663.65 546.22 3561.51 1706.19 3928.41 223.70 440.26 284.05 724.31 1504.75 3358.44 238.53 94.10 243.44 337.54

11217.37 2916.68 13442.49 6177.14 6656.37 1631.49 523.98 523.98 4586.89 3966.69 2334.78 1081.27 324.02 1405.28

641.90 34.51 354.00 846.72 460.10 12.28 6.90 41.67 48.57 548.92 218.81 46.54 23.44 21.72 45.16

182.09 82.13 15.38 232.19 6.72 141.61 52.62 3.46 56.08 210.61 6.74 191.22 135.54 3.18 138.72

170.79 58.00 6.65 217.79 2.91 99.99 37.16 2.45 39.60 197.54 2.91 135.02 95.71 2.25 97.95

11.30 24.14 8.73 14.41 3.82 41.61 15.46 1.02 16.48 13.07 3.82 56.19 39.83 0.94 40.77

4.31 217.36 29.02 3.92 26.53 312.28 42.64 1.82 44.46 5.07 34.72 427.48 274.60 2.38 276.98

4.31 1.50 29.02 3.92 26.53 2.16 0.29 0.01 0.31 5.07 34.72 2.95 1.90 0.02 1.91

0.00 215.86 0.00 0.00 0.00 310.12 42.35 1.81 44.15 0.00 0.00 424.52 272.70 2.36 275.06

2986.19 540.62 1755.82 3873.04 1644.24 817.15 121.47 159.91 281.38 3533.42 2251.22 1133.73 735.85 195.97 931.82

2464.36 191.52 1636.70 3196.24 1532.69 289.49 43.03 56.65 99.69 2915.96 2098.49 401.65 260.69 69.43 330.11

0.00 55.21 0.00 0.00 0.00 83.45 12.41 16.33 28.74 0.00 0.00 115.79 75.15 20.01 95.17

521.83 293.88 119.12 676.80 111.55 444.21 66.03 86.93 152.96 617.45 152.73 616.30 400.01 106.53 506.54

1113.26 248.42 179.01 1221.76 66.08 197.37 124.18 20.27 144.45 1254.55 170.06 229.66 176.37 27.63 204.00

59.54 0.70 0.47 60.95 0.43 2.57 0.82 0.82 70.62 0.48 6.46 6.10 0.95 7.05

1968.40 598.33 2936.06 4056.70 2493.26 767.55 309.80 218.90 528.70 4354.82 2008.83 610.84 504.57 190.48 695.05

0.00 186.82 0.00 0.00 0.00 239.65 96.73 68.35 165.08 0.00 0.00 190.72 157.54 59.47 217.02

1968.40 411.52 2936.06 4056.70 2493.26 527.90 213.07 150.55 363.63 4354.82 2008.83 420.12 347.03 131.01 478.03

201120102009






















Emissions































NOx

(tpy)

PM10

(tpy)

SO2

(tpy)

NOx

(tpy)

SO2

(tpy)

PM10

(tpy)

Primary

PM2.5

(tpy)

Secondary

Formation

PM2.5

(tpy)

Total

PM2.5

(tpy)

NOx

(tpy)

SO2

(tpy)

PM10

(tpy)

Primary

PM2.5

(tpy)

Secondary

Formation

PM2.5

(tpy)

Total

PM2.5

(tpy)

201120102009

1.70 98.13 0.01 2.43 0.05 145.08 3.69 0.04 3.73 3.09 0.06 186.26 44.07 0.04 44.11

0.00 97.29 0.00 0.00 0.00 143.83 3.66 0.03 3.69 0.00 0.00 184.65 43.69 0.04 43.73

1.70 0.85 0.01 2.43 0.05 1.25 0.03 0.00 0.03 3.09 0.06 1.60 0.38 0.00 0.38

46.44 49.18 46.44 3588.27 357.98 655.49 206.77 70.47 277.24 3150.70 398.00 903.19 719.60 67.45 787.05

0.00 8.48 0.00 0.00 0.00 113.06 35.66 12.15 47.82 0.00 0.00 155.78 124.12 11.63 135.75

46.44 40.70 46.44 3588.27 357.98 542.43 171.11 58.31 229.42 3150.70 398.00 747.41 595.49 55.82 651.30

5963.29 1883.07 577.74 7009.01 1406.58 3398.49 805.32 184.80 990.12 6419.61 1362.43 3175.40 2416.42 174.20 2590.62

0.00 271.13 0.00 0.00 0.01 489.32 115.95 26.61 142.56 0.00 0.01 457.20 347.92 25.08 373.00

5907.15 1357.04 577.62 6943.02 1406.30 2449.12 580.35 133.17 713.53 6359.17 1362.16 2288.35 1741.39 125.54 1866.93

56.14 254.91 0.11 65.99 0.27 460.05 109.02 25.02 134.03 60.44 0.26 429.85 327.11 23.58 350.69

71.22 123.99 0.43 74.36 0.44 162.39 48.11 1.00 49.11 74.55 0.45 167.74 96.59 1.00 97.59

71.22 107.28 0.43 74.36 0.44 140.51 41.63 0.86 42.49 74.55 0.45 145.13 83.57 0.86 84.44

0.00 16.71 0.00 0.00 0.00 21.89 6.48 0.13 6.62 0.00 0.00 22.61 13.02 0.13 13.15

384.24 44.83 640.25 348.38 403.31 41.00 18.38 31.41 49.79 393.61 404.85 38.55 23.31 32.10 55.41

13877.80 2429.55 24016.09 11420.15 21743.42 1750.20 471.69 1597.88 2069.57 11784.72 20217.02 1739.46 1046.46 1500.85 2547.31

4703 663.5 6579.4 3865.85 6233.340 630.01 465.76 465.76 4322 6233 642.88 353.58 471.66 825.24

4567.9 655.8 6390.3 3220.25 5192.36 527.01 387.98 387.98 4202 6059 642.41 353.31 458.50 811.82

4602.8 1021.5 11046.3 4329.90 10317.70 502.31 744.08 744.08 3260 7925 379.45 312.80 570.67 883.47

0.00 0.00 0.00 0 0.00 0 0 0.00 0 0 0.00 0 0 0.00 0

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0 0.00 0 0 0.00 0 0 0.00 0 0 0.00 0

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 16.71 0.00 0.00 148.95 21.45 0.00 9.93 9.93 0.00 0.00 169.55 162.25 0.00 162.25

47.15 44.45 60.33 62.94 6.27 47.15 24.35 1.24 25.59 62.46 6.66 77.41 62.72 1.26 63.97

3.07 32.60 1.33 4.10 0.14 34.59 17.86 0.91 18.77 4.07 0.15 56.79 46.00 0.92 46.92

44.08 11.84 59.01 58.84 6.13 12.57 6.49 0.33 6.82 58.40 6.51 20.63 16.71 0.33 17.05

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

616.80 130.37 680.06 661.04 817.24 147.97 71.43 63.07 134.50 661.04 817.24 272.59 185.39 63.07 248.45

616.80 46.70 680.06 661.04 817.24 53.00 25.59 22.59 48.18 661.04 817.24 97.64 66.41 22.59 89.00

0.00 83.67 0.00 0.00 0.00 94.97 45.84 40.48 86.32 0.00 0.00 174.95 118.98 40.48 159.46

14.88 24.68 1.68 14.86 1.69 24.75 20.24 0.31 20.55 14.86 1.69 25.44 20.57 0.31 20.88














ME Global 13700073





Range 07500005


















NOx

(tpy)

PM10

(tpy)

SO2

(tpy)

NOx

(tpy)

SO2

(tpy)

PM10

(tpy)

Primary

PM2.5

(tpy)

Secondary

Formation

PM2.5

(tpy)

Total

PM2.5

(tpy)

NOx

(tpy)

SO2

(tpy)

PM10

(tpy)

Primary

PM2.5

(tpy)

Secondary

Formation

PM2.5

(tpy)

Total

PM2.5

(tpy)

201120102009

0.00 3.23 0.00 0.00 0.00 3.24 2.65 0.04 2.69 0.00 0.00 3.32 2.69 0.04 2.73

14.88 21.45 1.68 14.86 1.69 21.52 17.59 0.27 17.86 14.86 1.69 22.11 17.88 0.27 18.15

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.27 0.09 0.08 0.79 0.05 0.06 0.01 0.01 4.53 0.30 0.11 0.11 0.08 0.19

17.56 34.87 0.97 9.96 13.54 33.24 1.03 1.03 13.33 0.83 64.74 42.44 0.23 42.67

6.35 15.10 0.04 8.05 13.03 12.59 0.97 0.97 8.95 0.05 47.02 46.93 0.12 47.05

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

28.71 8.85 0.67 44.51 0.78 10.47 0.63 0.63 34.80 0.72 19.06 13.95 0.50 14.45

28.71 2.95 0.67 44.51 0.78 3.49 0.21 0.21 34.80 0.72 6.35 4.65 0.17 4.82

0.00 5.90 0.00 0.00 0.00 6.98 0.42 0.42 0.00 0.00 12.71 9.30 0.33 9.63

15.98 39.47 8.06 28.21 13.52 40.09 1.27 1.27 27.43 15.13 99.29 74.59 1.37 75.96

3.01 17.51 0.17 2.98 145.57 220.70 9.74 9.74 3.36 0.20 574.07 410.80 0.06 410.85

0.00 13.49 0.00 0.00 0.00 6.61 0.00 0.00 0.00 0.00 8.08 3.13 0.00 3.13

18.18 1.35 0.18 16.56 0.14 1.19 0.22 0.22 16.02 0.11 0.10 0.09 0.22 0.30

0.00 31.50 0.00 0.00 0.00 73.93 0.00 0.00 0.00 0.00 55.29 13.78 0.00 13.78

0.46 0.09 0.03 0.56 0.04 0.11 0.01 0.01 0.74 0.05 0.15 0.09 0.01 0.10

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 43.37 0.00 0.00 0.00 157.84 0.00 0.00 0.00 0.00 133.25 33.91 0.00 33.91

0 0 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.08 0.25 0.07 0.89 0.10 0.19 0.02 0.02 3.53 0.40 1.18 0.56 0.07 0.63

0.00 0.00 0.00 0.00 0.00 0.00 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

3.53 9.32 0.23 2.16 0.24 6.11 0.04 0.04 6.94 0.78 20.10 19.26 0.14 19.40

6.93 1.77 0.46 0.03 0.00 0.01 0.00 0.00 2.13 0.14 0.62 0.31 0.04 0.34

0.00 6.33 0.00 0.00 0.00 11.58 0.00 0.00 0.00 0.00 27.37 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00


















Essar 06100067

Essar 06100067






























PolyMet (EIS Only)

PolyMet (EIS Only)

PolyMet (EIS Only)






NOx

(tpy)

SO2

(tpy)

PM10

(tpy)

Primary

PM2.5

(tpy)

Secondary

Formation

PM2.5

(tpy)

Total

PM2.5

(tpy)

NOx

(tpy)

SO2

(tpy)

PM10

(tpy)

Primary

PM2.5

(tpy)

Secondary

Formation

PM2.5

(tpy)

Total

PM2.5

(tpy)

NOx

(tpy)

SO2

(tpy)

PM10

(tpy)

Primary

PM2.5

(tpy)

Secondary

Formation

PM2.5

(tpy)

Total

PM2.5

(tpy)

646.30 672.42 238.55 169.10 53.22 222.33 706.04 738.71 233.61 177.75 58.42 236.17 717.08 879.10 203.59 187.91 67.92 255.83

644.20 671.07 194.11 137.60 43.31 180.91 703.75 737.22 190.09 144.64 47.53 192.17 714.76 877.33 165.66 152.90 55.27 208.17

2.09 1.35 44.44 31.51 9.92 41.42 2.28 1.49 43.52 33.12 10.88 44.00 2.32 1.77 37.93 35.01 12.65 47.66

992.67 1182.05 479.34 334.98 91.69 426.68 759.23 1021.15 367.84 294.12 77.94 372.05 670.70 1045.65 264.57 189.00 78.42 267.42

920.98 1180.61 199.34 139.31 38.13 177.44 704.40 1019.90 152.97 122.31 32.41 154.73 622.26 1044.38 110.02 78.60 32.61 111.21

71.69 1.44 280.00 195.67 53.56 249.24 54.83 1.24 214.87 171.80 45.53 217.33 48.43 1.27 154.54 110.40 45.81 156.21

3418.29 104.78 453.96 121.85 51.38 173.23 3717.40 104.89 430.35 121.16 55.27 176.43 3626.57 98.50 469.97 121.43 53.67 175.10

0.00 0.00 151.21 40.59 17.11 57.70 0.00 0.00 143.35 40.36 18.41 58.77 0.00 0.00 156.55 40.45 17.88 58.32

3418.29 104.78 302.74 81.26 34.26 115.53 3717.40 104.89 287.00 80.80 36.86 117.66 3626.57 98.50 313.42 80.98 35.79 116.77

479.95 124.24 69.66 50.89 14.52 65.41 445.24 122.52 65.51 49.64 13.95 63.59 411.03 141.83 45.27 37.32 14.79 52.11

460.03 124.12 66.29 48.43 13.81 62.25 426.76 122.40 62.34 47.24 13.28 60.52 393.98 141.69 43.09 35.52 14.08 49.60

19.91 0.12 3.36 2.46 0.70 3.16 18.47 0.12 3.16 2.40 0.67 3.07 17.05 0.14 2.19 1.80 0.71 2.52

801.04 69.50 76.22 76.22 15.04 91.25 777.06 34.55 75.80 75.80 12.40 88.20 742.46 42.84 79.29 79.29 12.50 91.78

0.24 0.01 17.15 11.80 0.00 11.81 0.30 0.01 17.31 11.54 0.00 11.55 0.32 0.01 16.52 11.27 0.00 11.28

332.57 368.70 12.57 7.27 28.90 36.17 306.14 321.05 29.76 18.39 25.38 43.77 319.88 318.65 3.78 2.67 25.40 28.07

480.35 378.51 98.65 77.91 31.47 109.38 542.15 518.31 48.68 28.45 41.60 70.05 593.09 534.87 22.19 12.17 43.36 55.53

4837.00 834.70 1636.44 557.95 118.46 676.42 4782.00 816.60 1673.50 505.48 116.54 622.02 4616.00 793.70 1691.05 506.61 112.86 619.47

1.11 0.04 60.01 30.76 0.02 30.78 1.04 0.04 58.62 30.02 0.02 30.04 1.02 0.04 58.21 29.82 0.02 29.83

24.45 24.80 77.28 55.70 1.97 57.67 22.93 24.99 84.66 59.64 1.96 61.61 29.96 26.75 80.67 57.84 2.17 60.01

24.45 24.80 23.06 16.62 0.59 17.21 22.93 24.99 25.26 17.80 0.59 18.39 29.96 26.75 24.07 17.26 0.65 17.91

0.00 0.00 54.22 39.08 1.38 40.46 0.00 0.00 59.39 41.84 1.38 43.22 0.00 0.00 56.59 40.58 1.52 42.10

19.27 1.57 18.26 13.16 0.35 13.51 22.70 1.74 17.51 12.47 0.41 12.88 24.23 2.02 18.06 13.00 0.45 13.45

19.27 1.57 1.79 1.29 0.03 1.32 22.70 1.74 1.72 1.22 0.04 1.26 24.23 2.02 1.77 1.27 0.04 1.32

0.00 0.00 16.47 11.87 0.32 12.19 0.00 0.00 15.79 11.24 0.37 11.61 0.00 0.00 16.29 11.73 0.41 12.13

250.63 5.36 173.12 157.58 3.61 161.19 424.92 8.56 200.58 182.90 6.09 188.99 528.31 0.80 202.03 168.20 6.91 175.11

250.63 5.36 171.11 0.00 0.00 0.00 424.92 8.56 198.24 0.00 0.00 0.00 528.31 0.80 199.68 0.00 0.00 0.00

0.00 0.00 2.01 0.00 0.00 0.00 0.00 0.00 2.33 0.00 0.00 0.00 0.00 0.00 2.35 0.00 0.00 0.00

424.11 262.14 132.05 40.63 22.98 63.62 526.31 393.77 165.90 51.04 33.09 84.12 380.05 244.89 132.41 44.14 21.26 65.41

1168.98 2655.29 179.71 64.16 192.20 256.36 780.52 2991.39 227.76 84.92 209.56 294.48 733.89 2943.73 236.53 119.50 205.78 325.28

4282.31 4645.98 1888.28 871.56 365.35 1236.90 4695.54 5215.27 2024.55 965.46 408.67 1374.13 3999.71 4576.21 1628.63 584.18 357.02 941.20

498.61 163.00 46.88 36.99 17.34 54.33 582.28 214.00 41.43 31.03 21.83 52.86 531.07 216.30 43.42 32.76 21.32 54.08

210.31 6.95 135.13 78.70 3.19 81.90 206.90 6.51 124.32 69.20 3.12 72.32 136.02 6.09 117.25 66.15 2.17 68.32

197.26 3.01 95.42 55.57 2.26 57.83 194.06 2.82 87.79 48.86 2.20 51.07 127.58 2.63 82.79 46.71 1.53 48.24

13.05 3.94 39.71 23.13 0.94 24.07 12.84 3.70 36.54 20.34 0.92 21.25 8.44 3.46 34.46 19.44 0.64 20.08

4.93 34.05 376.87 235.31 2.33 237.64 3.97 28.07 266.79 168.25 1.92 170.17 2.49 8.85 372.78 227.67 0.62 228.29

4.93 34.05 2.60 1.63 0.02 1.64 3.97 28.07 1.84 1.16 0.01 1.18 2.49 8.85 2.58 1.57 0.00 1.58

0.00 0.00 374.26 233.68 2.32 236.00 0.00 0.00 264.94 167.09 1.91 169.00 0.00 0.00 370.20 226.10 0.62 226.71

3156.18 1816.33 780.74 545.25 162.08 707.33 3686.82 2226.86 407.88 300.67 196.34 497.00 3781.25 2369.33 451.40 328.70 207.06 535.76

2604.65 1693.10 276.59 193.17 57.42 250.58 3042.56 2075.79 144.50 106.52 69.56 176.07 3120.49 2208.59 159.91 116.45 73.36 189.80

0.00 0.00 79.74 55.69 16.55 72.24 0.00 0.00 41.66 30.71 20.05 50.76 0.00 0.00 46.10 33.57 21.15 54.72

551.53 123.22 424.41 296.40 88.11 384.51 644.26 151.07 221.72 163.44 106.73 270.17 660.76 160.74 245.38 178.68 112.56 291.24

1417.65 207.34 213.73 160.07 32.23 192.30 1048.88 54.57 193.63 153.52 17.26 170.78 1127.26 88.31 211.51 158.57 20.53 179.10

47.27 0.28 3.96 3.96 0.63 4.60 48.92 0.23 4.10 4.10 0.65 4.75 45.64 0.23 2.83 2.83 0.61 3.44

3432.47 1429.68 687.54 540.95 139.89 680.84 3014.23 1052.53 640.04 502.63 109.31 611.95 3163.23 972.03 620.12 482.97 105.88 588.86

0.00 0.00 214.67 168.90 43.68 212.58 0.00 0.00 199.84 156.94 34.13 191.07 0.00 0.00 193.62 150.80 33.06 183.86

3432.47 1429.68 472.87 372.05 96.21 468.26 3014.23 1052.53 440.20 345.70 75.18 420.88 3163.23 972.03 426.50 332.17 72.82 405.00

20132012 2014






















Emissions































NOx

(tpy)

SO2

(tpy)

PM10

(tpy)

Primary

PM2.5

(tpy)

Secondary

Formation

PM2.5

(tpy)

Total

PM2.5

(tpy)

NOx

(tpy)

SO2

(tpy)

PM10

(tpy)

Primary

PM2.5

(tpy)

Secondary

Formation

PM2.5

(tpy)

Total

PM2.5

(tpy)

NOx

(tpy)

SO2

(tpy)

PM10

(tpy)

Primary

PM2.5

(tpy)

Secondary

Formation

PM2.5

(tpy)

Total

PM2.5

(tpy)

20132012 2014

3.61 0.11 169.56 30.42 0.05 30.47 6.62 0.28 181.43 31.67 0.10 31.77 4.99 0.15 163.85 29.12 0.07 29.19

0.00 0.00 168.10 30.16 0.05 30.21 0.00 0.00 179.87 31.39 0.10 31.50 0.00 0.00 162.44 28.87 0.07 28.94

3.61 0.11 1.46 0.26 0.00 0.26 6.62 0.28 1.56 0.27 0.00 0.27 4.99 0.15 1.41 0.25 0.00 0.25

3311.80 549.70 908.09 702.71 79.66 782.37 3030.10 580.90 801.39 639.36 78.08 717.43 5116.80 668.90 853.93 690.55 111.05 801.60

0.00 0.00 156.63 121.20 13.74 134.94 0.00 0.00 138.22 110.28 13.47 123.74 0.00 0.00 147.28 119.11 19.15 138.26

3311.80 549.70 751.46 581.51 65.92 647.43 3030.10 580.90 663.17 529.08 64.61 593.69 5116.80 668.90 706.64 571.45 91.89 663.34

6772.35 1563.87 2845.72 2049.27 192.21 2241.48 6786.34 1763.85 3028.41 2248.81 205.72 2454.53 7020.96 1371.08 3005.04 2167.90 182.59 2350.48

0.00 0.01 409.73 295.06 27.67 322.73 0.00 0.01 436.04 323.79 29.62 353.41 0.00 0.01 432.67 312.14 26.29 338.43

6708.59 1563.56 2050.76 1476.80 138.52 1615.32 6722.45 1763.50 2182.42 1620.60 148.25 1768.85 6954.86 1370.81 2165.58 1562.29 131.58 1693.87

63.76 0.30 385.22 277.41 26.02 303.43 63.89 0.34 409.95 304.42 27.85 332.27 66.10 0.26 406.79 293.47 24.72 318.18

70.76 0.42 160.89 91.54 0.95 92.49 70.76 0.42 162.39 93.03 0.95 93.98 64.77 0.37 147.04 93.44 0.87 94.31

70.76 0.42 139.21 79.20 0.82 80.02 70.76 0.42 140.50 80.49 0.82 81.31 64.77 0.37 127.22 80.85 0.75 81.60

0.00 0.00 21.69 12.34 0.13 12.47 0.00 0.00 21.89 12.54 0.13 12.67 0.00 0.00 19.82 12.59 0.12 12.71

256.15 204.91 21.85 13.78 16.99 30.77 338.42 377.49 42.67 28.43 29.56 57.99 287.05 339.94 31.06 18.34 26.39 44.73

8343.96 10376.05 1266.99 681.92 800.10 1482.02 8298.30 7706.02 1370.46 782.59 621.50 1404.10 10195.00 11459.02 1321.68 763.07 896.34 1659.41

3847 4785 553.09 304.36 368.96 673.32 4419 3469 636.08 349.88 288.66 638.54 3552 1219 398.84 184.94 127.40 312.34

4496 5591 649.00 356.98 431.12 788.11 3372 2806 502.36 276.40 230.86 507.26 3443 1178 391.41 181.56 123.25 304.81

0 0 0.01 0.01 0.00 0.01 506.3 1431 172.54 138.57 101.98 240.55 3198 9062 452.46 372.99 645.67 1018.66

0 0.00 0 0 0.00 0 0 0.00 0 0 0.00 0 0 0.00 0 0 0.00 0

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0 0.00 0 0 0.00 0 0 0.00 0 0 0.00 0 0 0.00 0 0 0.00 0

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 107.53 100.33 0.00 100.33 0.00 0.00 104.14 99.99 0.00 99.99 0.00 0.00 108.61 100.44 0.00 100.44

39.63 4.57 53.41 41.83 0.82 42.65 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

2.58 0.10 39.18 30.68 0.60 31.29 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

37.05 4.47 14.23 11.15 0.22 11.37 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

242.21 204.45 89.48 65.73 16.78 82.51 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

242.21 204.45 32.05 23.55 6.01 29.56 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 57.43 42.19 10.77 52.95 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

14.86 1.69 25.66 20.58 0.31 20.89 14.86 1.69 25.14 20.06 0.31 20.37 14.86 1.69 25.14 20.06 0.31 20.37














ME Global 13700073





Range 07500005


















NOx

(tpy)

SO2

(tpy)

PM10

(tpy)

Primary

PM2.5

(tpy)

Secondary

Formation

PM2.5

(tpy)

Total

PM2.5

(tpy)

NOx

(tpy)

SO2

(tpy)

PM10

(tpy)

Primary

PM2.5

(tpy)

Secondary

Formation

PM2.5

(tpy)

Total

PM2.5

(tpy)

NOx

(tpy)

SO2

(tpy)

PM10

(tpy)

Primary

PM2.5

(tpy)

Secondary

Formation

PM2.5

(tpy)

Total

PM2.5

(tpy)

20132012 2014

0.00 0.00 3.35 2.69 0.04 2.73 0.00 0.00 3.29 2.62 0.04 2.66 0.00 0.00 3.29 2.62 0.04 2.66

14.86 1.69 22.31 17.89 0.27 18.16 14.86 1.69 21.85 17.44 0.27 17.71 14.86 1.69 21.85 17.44 0.27 17.71

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

6.04 0.40 0.15 0.15 0.10 0.26 1.81 0.12 0.05 0.05 0.03 0.08 2.72 0.18 0.07 0.07 0.05 0.11

10.24 0.50 36.27 13.22 0.17 13.39 10.29 0.51 36.19 13.20 0.17 13.37 10.90 0.55 36.30 13.56 0.18 13.74

8.60 0.05 42.64 42.55 0.12 42.67 8.30 0.05 45.67 45.67 0.11 45.78 7.44 0.04 40.15 40.15 0.10 40.25

0.12 0.00 0.10 0.00 0.00 0.00 0.60 0.00 0.22 0.00 0.01 0.01 0.64 0.00 3.45 0.00 0.01 0.01

42.91 0.88 15.84 9.28 0.62 9.89 35.17 0.88 18.59 13.08 0.52 13.60 49.97 0.97 20.64 14.57 0.71 15.29

42.91 0.88 5.28 3.09 0.21 3.30 35.17 0.88 6.20 4.36 0.17 4.53 49.97 0.97 6.88 4.86 0.24 5.10

0.00 0.00 10.56 6.18 0.41 6.60 0.00 0.00 12.39 8.72 0.34 9.06 0.00 0.00 13.76 9.71 0.48 10.19

18.92 8.97 47.92 41.63 0.84 42.47 20.65 9.89 74.65 67.79 0.93 68.72 16.39 8.55 24.29 18.61 0.78 19.39

3.61 0.33 55.95 55.39 0.07 55.46 1.37 0.35 49.06 48.23 0.04 48.27 1.01 0.01 62.58 45.62 0.01 45.63

0.00 0.00 6.34 1.98 0.00 1.98 0.00 0.00 9.29 3.10 0.00 3.10 0.00 0.00 11.55 3.51 0.00 3.51

14.49 0.16 0.10 0.09 0.20 0.29 16.57 0.17 0.20 0.19 0.23 0.41 16.89 0.75 0.15 0.13 0.27 0.40

0.00 0.00 38.19 8.21 0.00 8.21 0.00 0.00 146.97 30.36 0.00 30.36 0.00 0.00 223.04 45.45 0.00 45.45

0.66 0.04 0.23 0.07 0.01 0.09 0.66 0.04 0.22 0.07 0.01 0.08 0.30 0.02 0.06 0.03 0.01 0.04

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 72.19 11.75 0.00 11.75 0.00 0.00 116.96 17.03 0.00 17.03 0.00 0.00 144.72 21.67 0.00 21.67

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

6.06 0.68 3.15 0.80 0.12 0.92 2.51 0.17 1.11 0.31 0.04 0.35 3.88 0.44 1.01 0.54 0.08 0.62

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

10.40 1.17 32.04 29.35 0.21 29.56 15.82 1.78 47.26 44.89 0.32 45.22 10.14 1.14 26.69 25.83 0.21 26.04

4.13 0.27 2.33 0.60 0.07 0.67 2.02 0.13 1.06 0.27 0.04 0.30 0.45 0.03 0.14 0.07 0.01 0.08

0.00 0.00 16.39 0.00 0.00 0.00 0.00 0.00 18.47 0.00 0.00 0.00 0.00 0.00 33.41 0.00 0.00 0.00

0.00 0.00 23.45 0.00 0.00 0.00 0.00 0.00 35.51 0.00 0.00 0.00 0.00 0.00 64.81 0.00 0.00 0.00

0.55 0.00 2.06 0.00 0.01 0.01 1.24 0.00 9.00 0.00 0.02 0.02 1.00 0.00 12.31 0.00 0.01 0.01

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.10 0.00 0.00 0.00


















Essar 06100067

Essar 06100067






























PolyMet (EIS Only)

PolyMet (EIS Only)

PolyMet (EIS Only)






NOx

baseline tpy

NOx g/s

annual

SO2

baseline tpy

SO2 g/s

increment

PM10

baseline tpy

PM10 g/s

increment

PM2.5

baseline tpy

PM2.5 g/s

increment

NOx

baseline tpy

NOx g/s

annual

SO2

baseline tpy

SO2 g/s

increment

PM10 tpy

baseline

PM10 g/s

increment

PM2.5

baseline tpy

PM2.5 g/s

increment

585.83 8.28 32.28 11.19 89.04 0.00 910.66 -14.46 6.47 12.99 89.04 0.00

1.18 0.02 7.17 2.58 20.39 0.00 1.84 -0.03 1.48 2.98 20.39 0.00

0.00 81.33 0.00 12.95 75.20 0.00 0.00 81.33 0.00 12.95 75.20 0.00

0.00 0.09 0.00 17.32 105.63 0.00 0.00 0.09 0.00 17.32 105.63 0.00

-23.01

0.00 0.00 0.00 0.00 5.30 93.93 0.00 0.00 0.00 0.00 5.30 93.93 0.00

-23.01 0.00 3.77 0.00 10.60 188.06 0.00 0.00 3.77 0.00 10.60 188.06 0.00

26.56 4.57 9.94 2.57 43.82 0.00 958.04 -39.46 0.00 3.04 43.82 0.00

0.03 0.00 0.50 0.13 2.22 0.00 0.96 -0.04 0.00 0.15 2.22 0.00

53.26 76.41 -2.38 -61.75 13.43 105.91 0.00 213.00 -15.69 303.07 -22.14 105.91 0.00

0.00 0.00 0.00 2.17 0.01 0.00 0.00 0.00 2.17

236.47 12.41 2.27 2.16 34.27 0.00 641.50 -33.96 106.38 -9.75 34.27 0.00

0.00 49.86 0.00 14.33 0.00 17.71 0.00 0.00 0.00 49.86 0.00 14.33 0.00 17.71 0.00 0.00

0.00 0.00 0.00 0.00 0.00 4.72 0.00 0.00 0.00 0.00 0.00 0.00 0.00 4.72 0.00 0.00

6.32 -0.09 14.79 7.07 0.00 0.14 9.00 -0.05

614.56 -12.44 350.68 -2.29 69.88 0.00 456.50 -0.61 4.71 23.63 69.88 0.00

43.24 0.00 29.69 0.00 59.51 376.65 0.00 0.00 29.69 0.00 59.51 376.65 0.00

7.47 2.19 7.73

0.00 1.39 3.76 1.14 7.58 0.00 0.00 1.39 0.00 1.35 7.58 0.00

0.00 0.00 8.83 2.67 17.82 0.00 0.00 0.00 0.00 3.16 17.82 0.00

2.07 -0.05 3.89 -0.27 1.14 0.00 0.00 0.21 0.06 0.21 1.14 0.00

0.00 0.00 35.76 -2.47 10.52 0.00 0.00 0.00 0.58 1.96 10.52 0.00

0.00 0.25 0.00 6.72 23.22 0.00 0.00 0.25 0.00 6.72 23.22 0.00

0.00 0.25 0.00 6.64 0.00 0.00 0.00 0.25 0.00 6.64 0.00 0.00

0.00 0.00 0.00 0.08 0.00 0.00 0.00 0.00 0.00 0.08 0.00 0.00

1186.14 -45.01 39.21 -1.31 214.01 0.00 1388.00 -55.60 107.14 -4.87 214.01 0.00

2634.41 9.27 0.12 9.99 724.31 0.00 0.00 138.49 275.80 -3.53 724.31 0.00

6721.89 -62.89 523.09 50.32 523.98 0.00 18117.92 -892.15 1378.14 -25.29 0.00

125.25 5.93 16.86 2.56 48.57 0.00 1745.00 -145.92 73.56 -2.76 48.57 0.00

0.00 0.00 0.00 0.00

3.82 -0.04 0.00 4.13 39.60 0.00 0.00 0.13 0.00 4.13 39.60 0.00

5.01 -0.05 0.00 1.72 16.48 0.00 0.00 0.17 0.00 1.72 16.48 0.00

21.93 1.15 1.97 0.03 0.31 0.00 8.50 2.84 14.72 -1.57 0.31 0.00

0.00 0.00 282.97 4.62 44.15 0.00 0.00 0.00 2115.12 -226.23 44.15 0.00

42.67

35.22 1307.90 20.73 151.15 4.09 99.69 0.00 1831.54 1.90 802.13 -21.27 99.69 0.00

0.00 0.00 0.00 43.57 1.18 28.74 0.00 0.00 0.00 231.24 -6.13 28.74 0.00

7.46 95.19 1.51 231.93 6.28 152.96 0.00 133.30 0.14 1230.82 -32.64 152.96 0.00

0.00 0.05 0.00 2.75 0.00 0.00 0.05 0.00 2.75 0.00 0.00

0.00 0.23 0.00 2.46 0.00 0.00 0.23 0.00 2.46 0.00 0.00

0.00 0.39 0.00 0.50 0.00 0.00 0.39 0.00 0.50 0.00 0.00

1200.81 -63.21 184.80 1.12 144.45 0.00 2177.25 -120.90 145.82 3.42 144.45 0.00

2.34 -0.26 0.00 0.51 0.82 0.00 0.03 0.00 0.51

-4.62 528.70 0.00

0.00 0.00 0.00 80.78 5.59 165.08 0.00 0.00 0.00 58.81 5.34 165.08 0.00

-4.62 13.83 44.13 177.94 12.32 363.63 0.00 8.18 44.33 129.54 11.76 363.63 0.00

Koochiching County (MiSBDs: NOx 1989; SO2 1999; PM10 1991) (MaSBD: PM2.5 2010) St Louis County (MiSBDs: NOx 1991; SO2 1986; PM10 1979) (MaSBD: PM2.5 2010)






















Emissions































NOx

baseline tpy

NOx g/s

annual

SO2

baseline tpy

SO2 g/s

increment

PM10

baseline tpy

PM10 g/s

increment

PM2.5

baseline tpy

PM2.5 g/s

increment

NOx

baseline tpy

NOx g/s

annual

SO2

baseline tpy

SO2 g/s

increment

PM10 tpy

baseline

PM10 g/s

increment

PM2.5

baseline tpy

PM2.5 g/s

increment


0.00

0.00 0.00 1.94 21.68 3.69 0.00 0.00 0.00 1.22 21.77 3.69 0.00

2.00 -0.23 0.02 0.19 0.03 0.00 5.00 -0.60 0.01 0.19 0.03 0.00

11.45

0.00 0.00 0.00 221.44 0.21 47.82 0.00 0.00 0.00 95.82 1.86 47.82 0.00

11.45 163.41 14.45 1062.44 0.98 229.42 0.00 44.93 18.71 459.74 8.90 229.42 0.00

71.68

0.00 0.00 0.00 1767.32 -25.47 142.56 0.00 0.00 0.00 625.41 -7.28 142.56 0.00

71.01 150.82 54.39 8845.69 -127.46 713.53 0.00 845.56 29.41 3130.24 -36.45 713.53 0.00

0.67 0.03 0.01 1661.60 -23.94 134.03 0.00 0.16 0.01 588.00 -6.85 134.03 0.00

0.49 -0.01 81.04 7.41 42.49 0.00 153.50 -19.29 78.24 7.76 42.49 0.00

0.00 0.00 12.62 1.15 6.62 0.00 0.00 0.00 12.19 1.21 6.62 0.00

642.57 -28.37 24.97 0.59 49.79 0.00 976.00 -55.30 31.69 0.05 49.79 0.00

9045.09 512.07 1067.43 25.42 2069.57 0.00 23711.50 -70.09 3294.80 -62.96 2069.57 0.00

4542.33 66.47 507.15 5.08 465.76 0.00 11855.75 -221.03 1647.40 -39.74

4502.76 45.00 560.27 0.98 387.98 0.00 11855.75 -249.66 1647.40 -42.59

0.00 400.60 0.00 19.36 744.08 0.00 0.00 400.60 0.00 19.36

0.84 -0.11 59.71 -7.52 0.00 0.00 0.00 0.00

0.00 0.00 18.84 -2.37 0.00 0.00 0.00 0.00

0.40 -0.05 45.95 -5.79 0.00 0.00 0.00 0.00

0.00

2.40 -0.30 41.09 -5.18 0.00 0.00 0.00 0.00

3.00 -0.38 16.77 -2.11 0.00 0.00 0.00 0.00

0.29 -0.04 8.55 -1.08 0.14 -0.02 0.00 0.00

3.90 -0.49 440.01 -55.44 1.86 -0.23 0.00 0.00

0.00 0.00 127.71 -16.09 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 9.93 0.00 0.00 0.00 0.00 0.00 9.93 0.00

2.50 -0.26 10.10 -1.05 18.77 0.00 0.00 0.00 11.74 -1.22 18.77 0.00

111.09 -11.53 3.67 -0.38 6.82 0.00 0.00 0.00 4.26 -0.44 6.82 0.00

0.00 0.00 328.22 -13.49 758.91 -31.19

0.00 0.00 0.00 0.00 523.53 -21.51

0.00 0.00 0.00 17.33 -0.35 0.00 0.00 3.32 -0.14

-96.73 1051.17 -43.20 26549.50 -534.62 919.64 -37.79 5089.82 -209.17

-1.15 6.01 -0.25 5643.14 -113.63 5.26 -0.22 1081.85 -44.46

0.00 0.00 4.79 -0.60 0.00 0.00 23.69 -2.98

0.00 0.00 7.90 -1.00 0.00 0.00 39.05 -4.92

921.21 -86.69 25.54 -2.40 48.18 0.00 33.00 -3.11 0.00 0.00 48.18 0.00

0.00 0.00 45.75 -4.31 86.32 0.00 0.00 0.00 0.00 0.00 86.32 0.00














ME Global 13700073





Range 07500005


















NOx

baseline tpy

NOx g/s

annual

SO2

baseline tpy

SO2 g/s

increment

PM10

baseline tpy

PM10 g/s

increment

PM2.5

baseline tpy

PM2.5 g/s

increment

NOx

baseline tpy

NOx g/s

annual

SO2

baseline tpy

SO2 g/s

increment

PM10 tpy

baseline

PM10 g/s

increment

PM2.5

baseline tpy

PM2.5 g/s

increment


0.00 0.00 0.97 0.30 2.69 0.00 0.00 0.00 0.78 0.32 2.69 0.00

0.98 0.09 6.46 1.97 17.86 0.00 0.00 0.21 5.22 2.12 17.86 0.00

0.00 0.00 0.00 1.02 0.00 0.00 0.00 0.00 1.02

0.00 0.00 0.00 0.21 0.00 0.00 0.00 0.00 0.21

0.00 0.03 0.00 0.01 0.01 0.00 0.03 0.00 0.01

0.00 0.89 1.03 0.06 4.57

0.00 0.97 0.01 0.00 5.56

0.00 0.00 0.00 0.25 0.00 0.00 0.00 0.00 0.25

2.07 -0.15 0.00 0.72 0.00 0.11 0.00 0.72

0.00 0.00 0.00 1.45 0.00 0.00 0.00 1.45

8.82 0.08 1.55 7.53 1.27 2.00 0.94 0.00 7.72

0.01 0.04 26.96 3.22 9.74 2.00 -0.21 0.00 6.62

0.00 0.00 0.00 0.99 0.00 0.00 0.00 0.00 0.99

8.44 -1.04 0.00 0.02 0.22 0.00 0.02 0.00 0.02

0.00 0.00 0.00 11.66 0.00 0.00 0.00 0.00 11.66

0.03 0.00 0.00 0.03 0.01 0.00 0.01 0.00 0.03

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 11.92 0.00 0.00 0.00 0.00 11.92

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.16 0.03 0.00 0.27 0.02 0.00 0.05 0.00 0.27

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.25 0.15 0.00 5.00 0.04 0.00 0.19 0.00 5.00

0.88 -0.09 0.00 0.21 0.00 0.00 0.03 0.00 0.21

0.00 0.00 0.00 2.20 0.00 0.00 0.00 0.00 2.20

0.00 0.00 0.00 3.71 0.00 0.00 0.00 0.00 3.71

0.00 0.00 0.00 0.70 0.00 0.00 0.00 0.00 0.70

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00


















Essar 06100067

Essar 06100067






























PolyMet (EIS Only)

PolyMet (EIS Only)

PolyMet (EIS Only)






NOx

baseline tpy

NOx g/s

annual

SO2

baseline tpy

SO2 g/s

increment

PM10

baseline tpy

PM10 g/s

increment

PM2.5

baseline tpy

PM2.5 g/s

increment

NOx

baseline tpy

NOx g/s

annual

SO2

baseline tpy

SO2 g/s

increment

PM10

baseline tpy

PM10 g/s

increment

PM2.5

baseline tpy

PM2.5 g/s

increment

644.84 4.15 182.90 0.64 89.04 0.00 -12.18 -4.53 89.04 0.00

1.30 0.01 40.60 0.24 20.39 0.00 0.34 20.39 0.00

0.00 81.33 0.00 12.95 75.20 0.00 81.32 12.59 75.20 0.00

0.00 0.09 0.00 17.32 105.63 0.00 0.09 17.23 105.63 0.00

0.00 0.00 0.00 5.30 93.93 0.00 0.00 0.00 0.00 5.30 93.93 0.00

0.00 3.77 0.00 10.60 188.06 0.00 0.00 3.77 0.00 10.60 188.06 0.00

468.17 -16.31 144.68 -3.80 43.82 0.00 0.00 4.86 0.00 1.79 43.82 0.00

0.47 -0.02 7.34 -0.19 2.22 0.00 0.00 0.09 2.22 0.00

5.73 375.24 -31.51 -16.12 8.98 105.91 0.00 0.22 8.14 105.91 0.00

0.00 0.00 12.23 0.63

711.61 -41.98 6.85 1.64 34.27 0.00

0.00 49.86 0.00 14.33 0.00 17.71 0.00 0.00 14.33 0.00 17.71 0.00 0.00

0.00 0.00 0.00 0.00 0.00 4.72 0.00 0.00 0.00 0.00 4.72 0.00 0.00

0.55 0.12 24.88 -0.62 0.00 -0.32

2.36 909.82 -34.56 26.40 22.00 69.88 0.00 0.48 0.35 69.88 0.00

68.53 29.69 0.00 59.51 376.65 0.00 0.00 29.69 0.00 59.51 376.65 0.00

7.73

0.00 1.39 9.75 0.80 7.58 0.00 0.00 1.39 0.00 0.00 7.58 0.00

0.00 0.00 22.93 1.89 17.82 0.00 0.00 0.00 0.00 0.00 17.82 0.00

1.49 0.02 0.66 0.14 1.14 0.00 1.14 0.00

0.00 0.00 6.11 1.26 10.52 0.00 10.52 0.00

0.00 0.25 0.00 6.72 23.22 0.00 0.00 0.25 0.00 6.72 23.22 0.00

0.00 0.25 0.00 6.64 0.00 0.00 0.00 0.25 0.00 6.64 0.00 0.00

0.00 0.00 0.00 0.08 0.00 0.00 0.00 0.00 0.00 0.08 0.00 0.00

409.52 -4.28 169.10 -8.12 214.01 0.00 214.01

337.00 121.96 377.94 -8.54 724.31 0.00 724.31

7657.05 -524.90 656.84 0.03 523.98 0.00 523.98

0.00 0.00 432.78 0.00 43.73 0.00 0.00

214.26 -2.41 27.12 1.60 48.57 0.00 48.57 0.00

0.00 0.00 -127.20 0.00 0.00 0.00

56.08 0.00 56.08 0.00

2.71 0.01 0.00 4.13 39.60 0.00 0.00 4.13 39.60 0.00

3.56 0.01 0.00 1.72 16.48 0.00 0.00 1.72 16.48 0.00

12.42 2.35 3.17 -0.12 0.31 0.00 0.31 0.00

0.00 0.00 456.05 -17.19 44.15 0.00 44.15 0.00

823.50 38.15 119.44 3.28 99.69 0.00 99.69 0.00

0.00 0.00 34.43 0.94 28.74 0.00 28.74 0.00

59.93 2.78 183.27 5.03 152.96 0.00 0.00 4.70 152.96 0.00

0.00 1.16 0.00 0.05 0.00 2.75 0.00 0.00 0.00 0.05 0.00 2.75 0.00 0.00

0.00 0.00 0.00 0.23 0.00 2.46 0.00 0.00 0.00 0.23 0.00 2.46 0.00 0.00

0.00 0.06 0.00 0.39 0.00 0.50 0.00 0.00 0.00 0.39 0.00 0.50 0.00 0.00

832.89 -41.47 976.75 -45.67 144.45 0.00 -24.99 6.21 144.45 0.00

0.00 0.03 5.40 -0.17

0.00 0.00 45.31 5.82 165.08 0.00 0.00 6.57 165.08 0.00

1.40 44.58 99.81 12.83 363.63 0.00 124.69 14.47 363.63 0.00

Cook County (MaSBDs: NOx 1988; SO2 1975; PM10 1975; PM2.5 2010)Lake County MiSBDs: NOx 1992; SO2 1992; PM10 1999) (MaSBD: PM2.5 2010)






















Emissions































NOx

baseline tpy

NOx g/s

annual

SO2

baseline tpy

SO2 g/s

increment

PM10

baseline tpy

PM10 g/s

increment

PM2.5

baseline tpy

PM2.5 g/s

increment

NOx

baseline tpy

NOx g/s

annual

SO2

baseline tpy

SO2 g/s

increment

PM10

baseline tpy

PM10 g/s

increment

PM2.5

baseline tpy

PM2.5 g/s

increment


66.99

0.00 0.00 66.41 13.55 3.69 0.00 3.69 0.00

4.20 -0.50 0.58 0.12 0.03 0.00 0.03 0.00

0.00 0.00 50.32 3.49 47.82 0.00 0.00 2.64 47.82 0.00

49.46 18.55 241.42 16.75 229.42 0.00 14.20 12.67 229.42 0.00

0.00 0.00 381.50 1.49 142.56 0.00 0.00 7.26 142.56 0.00

327.53 48.04 1909.47 7.45 713.53 0.00 27.52 36.32 713.53 0.00

0.06 0.01 358.68 1.40 134.03 0.00 0.01 6.82 134.03 0.00

4.61 -0.53 22.34 14.81 42.49 0.00 0.05 15.77 42.49 0.00

0.00 0.00 3.48 2.31 6.62 0.00 0.00 2.46 6.62 0.00

1.65 1208.19 -74.05 31.22 0.08 49.79 0.00 29.77 2.90 49.79 0.00

8771.50 522.82 3540.17 -5.22 2069.57 0.00 0.00 400.60 0.00 19.36 2069.57 0.00

4273.00 77.06 1757.42 23.42 0.00 0.00 0.00 0.00

4498.50 45.17 1782.75 -48.01 0.00 0.00 0.00 0.00

0.00 400.60 0.00 19.36 0.00 400.60 0.00 19.36

1.51 -0.19 8.34 -1.05

0.00 0.00 2.63 -0.33

0.72 -0.09 6.42 -0.81

0.98 -0.12 17.12 -2.16

1.23 -0.15 6.98 -0.88

0.25 -0.03 1.07 -0.13

3.39 -0.43 54.83 -6.91

0.00 0.00 15.92 -2.01

0.00 0.00 0.00 0.00 0.00 9.93 0.00 0.00 0.00 0.00 0.00 9.93 0.00

4.53 -0.47 64.05 -6.64 18.77 0.00 0.18 18.77 0.00

201.68 -20.92 23.27 -2.41 6.82 0.00 0.06 0.31 6.82 0.00

0.00 0.00 0.00 0.00 0.00 -1.72 0.00 -18.43

0.00 0.00 0.00 0.00 0.00 0.00 0.00 -12.71

263.93

0.00 0.00 1.60 -0.07 0.00 0.00 6.52 -0.13

793.83 -32.62 2443.88 -100.43 1301.22 -26.20 9984.33 -201.05

4.54 -0.19 519.45 -21.35 7.44 -0.15 2122.19 -42.73

0.00 0.00 0.00 0.00 0.00 -2.98

0.00 0.00 0.00 0.00 0.00 -4.92

226.06 -21.27 40.56 -3.82 48.18 0.00

0.00 0.00 72.67 -6.84 86.32 0.00














ME Global 13700073





Range 07500005


















NOx

baseline tpy

NOx g/s

annual

SO2

baseline tpy

SO2 g/s

increment

PM10

baseline tpy

PM10 g/s

increment

PM2.5

baseline tpy

PM2.5 g/s

increment

NOx

baseline tpy

NOx g/s

annual

SO2

baseline tpy

SO2 g/s

increment

PM10

baseline tpy

PM10 g/s

increment

PM2.5

baseline tpy

PM2.5 g/s

increment


0.00 0.00 2.20 0.14 2.69 0.00

1.34 0.04 14.65 0.94 17.86 0.00

0.00 0.00 0.00 1.02

0.00 0.00 0.00 0.21

0.00 0.03 0.00 0.01

0.06 0.14

0.00

0.00 0.00 0.00 0.25

0.00 0.11 10.76 -0.63

0.00 0.00 21.52 -1.27

5.67 0.47 36.77 3.09

3.72 -0.43 14.14 4.83

0.00 0.00 18.51 -1.35

0.00 0.02 1.55 -0.18

0.00 0.00 0.00 11.66

0.00 0.01 0.11 0.01

0.00 0.00 0.00 0.00

0.00 0.00 32.28 7.85

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00

0.00 0.05 0.79 0.17

0.00 0.00 0.00 0.00

0.00 0.19 17.34 2.81

0.00 0.03 2.56 -0.11

0.00 0.00 0.00 2.20

0.00 0.00 0.00 3.71

0.00 0.00 0.00 0.70

0.00 0.00 0.00 0.00

Class 1 Cumulative Analysis for Voyageurs National Park and Boundary Waters Canoe Area Wilderness

Taconite Production Analysis

Year Butler LTV UTAC - Fairlane Hibbtac ArcelorMittal Keetac Northshore Minntac Koochiching St Louis Lake Cook

1971 2.648 10.193 2.055 0.000 0.000 2.813 9.629 6.440

1972 2.303 9.972 2.141 0.000 0.000 2.420 9.043 8.675

1973 2.563 11.658 2.065 0.000 0.000 2.578 10.425 12.541

1974 2.523 10.897 2.172 0.000 0.000 2.477 10.368 12.616

1975 2.437 10.885 2.165 0.000 0.000 2.434 10.695 12.194 SO2 & PM10 MaSBD

1976 2.393 10.778 2.292 0.303 0.000 2.461 10.052 12.295

1977 1.687 4.646 2.573 2.150 0.232 2.622 5.033 7.428

1978 2.508 7.425 4.925 5.409 1.925 5.096 9.155 12.927

1979 2.552 8.820 5.605 6.250 2.238 5.368 7.034 16.492 PM10 MiSBD

1980 1.575 5.679 5.778 6.800 1.408 2.896 4.583 14.147 First Year EI data available

1981 2.195 7.944 5.880 7.126 2.386 3.424 7.644 12.382

1982 1.040 3.964 4.611 5.703 1.793 1.291 1.520 3.307

1983 1.557 2.045 3.266 4.205 2.136 3.271 0.985 7.708

1984 1.990 4.696 3.932 6.075 2.032 4.585 3.666 8.712 SO2

1985 0.952 4.862 2.944 5.059 1.822 4.429 3.282 9.914 baseline

1986 0.000 4.233 3.456 4.882 1.807 4.021 1.434 5.618 SO2 MiSBD

1987 0.000 6.774 3.481 7.685 2.119 4.315 0.000 7.669 NOx

1988 0.000 7.889 4.239 8.653 2.248 4.608 0.000 11.849 baseline (1987, 1988) NOx MaSBD

1989 0.000 7.373 4.910 8.187 2.269 4.745 0.000 11.846 1989 NOx MiSBD; PM10 NOx

1990 0.000 7.798 4.417 8.137 2.266 4.810 2.384 12.709 baseline (1989,1990) baseline SO2 & NOx

1991 0.000 6.887 3.374 8.016 2.337 4.850 1.986 12.471 PM10 MiSBD NOx MiSBD baseline

1992 0.000 6.623 3.572 7.802 2.110 4.998 1.394 12.352 SO2 & NOx MiSBD

1993 0.000 7.404 3.124 7.244 2.404 2.759 3.406 13.510

1994 0.000 7.471 4.862 8.192 2.511 1.732 3.435 13.473

1995 0.000 7.440 5.141 8.386 2.560 5.026 3.658 12.789

1996 0.000 7.183 4.843 7.910 2.530 4.776 4.072 12.561

1997 0.000 7.169 4.964 7.480 2.389 5.109 4.059 13.646 SO2

1998 0.000 6.657 4.773 7.609 2.550 5.260 4.183 13.291 baseline

1999 0.000 6.593 4.343 6.624 2.659 5.226 3.679 12.170 SO2 MiSBD PM10 MiSBD

2000 0.000 7.306 3.850 8.009 2.699 5.460 4.075 13.561

2001 0.000 0.069 4.160 5.891 2.629 4.372 2.648 11.859

2002 0.000 0.000 4.205 7.409 2.661 5.464 3.979 13.794

2003 0.000 0.000 1.630 7.770 2.658 4.377 4.684 13.231

2004 0.000 0.000 4.031 8.102 2.694 5.344 4.913 14.328

2005 0.000 0.000 4.836 8.148 2.558 5.197 4.780 13.996

2006 0.000 0.000 4.207 8.126 2.708 5.234 4.971 13.703

2007 0.000 0.000 5.279 7.266 2.495 5.220 4.975 12.751

2008 0.000 0.000 4.986 8.058 2.572 4.664 5.299 13.588

2009 0.000 0.000 3.777 1.694 1.365 0.075 3.081 7.087

2010 0.000 0.000 5.028 5.697 2.604 4.884 4.600 12.226

2011 0.000 0.000 5.095 7.605 2.626 4.969 5.592 13.048

2012 0.000 0.000 5.220 7.754 2.658 5.144 5.141 13.063

2013 0.000 0.000 5.082 7.312 2.645 4.957 3.777 13.449

2014 0.000 0.000 4.823 7.339 2.509 5.154 5.123 13.706

AVERAGE 2012,2013 production mmLt/yr 0.000 0.000 5.151 7.533 2.652 5.051 4.459 13.256 AVERAGE current 2-yr period

2012 emissions inventory data - SO2 tpy 0.000 0.000 1429.7 834.7 104.8 549.7 1816.3 1563.9

2013 emissions inventory data - SO2 tpy 0.000 0.000 1052.5 816.6 104.9 580.9 2226.9 1763.8

2012 emissions inventory data - PM10 tpy 0.000 0.000 687.5 1636.4 454.0 908.1 780.7 2845.7

2013 emissions inventory data - PM10 tpy 0.000 0.000 640.0 1673.5 430.4 801.4 407.9 3028.4

AVG 2012,2013 ratio SO2 tons emissions/mmLT production 0.000 0.000 240.9 109.6 39.5 111.9 453.4 125.5

AVG 2012,2013 ratio PM10 tons emissions/mmLT production 0.000 0.000 128.9 219.7 166.7 169.2 133.3 221.6

Source - History of Minnesota Taconite Production, Minnesota Mining Tax Guide, 2015

St Louis County (SLC PM10 MiSBD - 1979)

PM10 Baseline Period (SLC; 2-yr before MiSBD) 1977 & 1978 1977 & 1978 1977 & 1978 1977 & 1978 1977 & 1978 1977 & 1978 1977 & 1978 1977 & 1978

Average PM10 Baseline Production (SLC; 2-yr before MiSBD) 2.098 6.036 3.749 3.780 1.079 3.859 7.094 10.178

Previous 2-yr Period 2006 & 2007 2006 & 2007 2006 & 2007 2006 & 2007 2006 & 2007 2006 & 2007 2006 & 2007 2006 & 2007

AVG previous 2-yr 0.000 0.000 4.743 7.696 2.602 5.227 4.973 13.227

Current 2-yr Period 2012 & 2013 2012 & 2013 2012 & 2013 2012 & 2013 2012 & 2013 2012 & 2013 2012 & 2013 2012 & 2013

AVG current 2-yr 0.000 0.000 5.151 7.533 2.652 5.051 4.459 13.256

current 2-yr period

SO2 and PM10

baseline

Taconite Pellet Production - Million Long Tons'Original Barr' data from Mesabi Nugget phase I Mod Aug 2009 Barr Engineering

PM10

baseline

PM10

baseline

NOx

baseline

P:\Mpls\23 MN\69\2369862\WorkFiles\APA\Permitting\Air Permitting\Application\Appendix\App S-Class I Modeling\Attachments\C\Minnesota Class I Emissions Inventory 07-19-2016_v2_from_MPCA_17AUG2016.xlsx, Taconite Production 8/21/2016

Attachment S4

Modeling Files

(submitted separately on a hard drive)

Appendix T

Mercury Form HG 01

www.pca.state.mn.us • 651-296-6300 • 800-657-3864 • TTY 651-282-5332 or 800-657-3864 • Available in alternative formats

aq-f11-hg01 • 6/25/13 Page 1 of 4

HG-01 Mercury Releases to Ambient Air

Air Quality Permit Program

Doc Type: Permit Application 1a) AQ Facility ID No.: 13700345 1b) AQ File No.: N/A

2) Facility Name: Poly Met Mining, Inc.

3) Check the appropriate box stating the reason for this form, and fill in the requested information.

Construction of a new facility (stationary source) with a permitted potential to emit mercury at a rate of three (3) or more pounds per year. Permitted potential to emit will be 4.66 pounds of mercury per year.

Increasing the permitted potential mercury emissions at an existing facility (stationary source) that is already permitted to emit three (3) or more pounds of mercury per year. The increase in permitted potential emissions will be pounds of mercury per year.

Increasing the potential mercury emissions to three (3) or more pounds per year at an existing facility (stationary source) that is currently permitted to emit less than three (3) pounds of mercury per year. The current permitted potential to emit mercury is pounds of mercury per year, and after the proposed change the permitted potential to emit mercury will be pounds of mercury per year.

4) Use this table to summarize mercury emissions from each new and/or modified emission unit that will emit mercury.

4a)

Emission Unit (EU) and Stack/Vent (SV) ID number

4b)

potential to emit after the change (pounds per year)

4c)

current actual emissions (pounds per year)

4d)

future estimated actual emissions (pounds per year)

particulate- bound

(Hg-p)

reactive gaseous

(HgII)

Elemental

(Hg0)

Total

(HgT)

particulate- bound

(Hg-p)

reactive gaseous

(HgII)

Elemental

(Hg0)

Total

(HgT)

particulate- bound

(Hg-p)

reactive gaseous

(HgII)

Elemental

(Hg0)

Total

(HgT)

EU 108, EU 109 (EQUI 108, EQUI 109)

SV 035 (STRU 35)

0.41 0.41 3.28 4.10 0 0 0 0 0.37 0.37 2.95 3.69

GP100 (COMG 74) GP100 (COMG 74)

0.13 0.00 0.00 0.13 0 0 0 0 0.13 0.00 0.00 0.13

GP101 (COMG 75) GP101 (COMG 75)

0.00 0.00 0.43 0.43 0 0 0 0 0.00 0.00 0.10 0.10

5) Calculation Data.

5a) Are all of the calculations for the emissions listed in item 3 are included in the editable spreadsheet submitted with the permit application?

Yes No

5b) What is the source of the data used to determine the mercury emissions in item 3 (e.g., published emission factors, site specific test data, mass balance, etc.) ?

Pilot plant testing (Autoclave), material balance (ore/rock dust/concentrate - GP 100), & published emission factors (fuel combustion - GP 101)

http://www.pca.state.mn.us/

www.pca.state.mn.us • 651-296-6300 • 800-657-3864• TTY 651-282-5332 or 800-657-3864 • Available in alternative formats

aq-f11-hg01 • 6/25/13 Page 2 of 4

Instructions for Form HG-01

1a) AQ Facility ID No. -- Fill in your Air Quality (AQ) Facility Identification (ID) Number (No.). This is the first eight digits of the permit number for all permits issued under the

operating permit program.

1b) AQ File No. -- Fill in your AQ File Number. This number can be found in the “cc” line of correspondence from the Minnesota Pollution Control Agency (MCPA).

2) Facility Name -- Enter your facility name.

3) Check the box most closely describing the reason for submitting this form. If none of the boxes apply (you are not constructing a new facility that will emit 3 or more pounds per year of mercury, you are not increasing mercury emissions at an existing facility already allowed to emit 3 or more pounds per year of mercury, and you are not proposing to increase emissions at an existing facility to 3 or more pounds per year of mercury.

4) Complete the table to show the expected changes in mercury emissions associated with the construction of a new facility, or expansion, change, or modification of an existing facility.

4a) Enter the added, changed, or modified mercury-emitting unit or operation in the left-side column. In the right-side column, enter the stack(s)/vent(s) that operation exhausts

through. Use the emission unit (EU) number from your existing permit or from Form GI-05B, and the stack/vent (SV) number(s) from your existing permit or from Form GI-

04. If you need more lines, photocopy the form or attach additional pages.

4b) Enter the potential mercury emissions of the new, changed, or modified unit or operation, in pounds per year. If you know or can determine the portions that are particulate-

bound, RGM (reactive gaseous mercury), or elemental, enter that information in the appropriate columns. If you do not estimate the different forms of mercury and just

enter the total amount; MPCA staff will make that estimation based on the best available information.

4c) Enter the current actual mercury emissions of the unit or operation to be installed, constructed, changed, or modified, in pounds per year. If you know or can determine the

portions that are particulate-bound, RGM (reactive gaseous mercury), or elemental, enter that information in the appropriate columns. If you do not estimate the different

forms of mercury and just enter the total amount, MPCA staff will make that estimation based on the best available information. If this is a new source (not yet installed),

enter “0”.

4d) Enter the future actual mercury emissions of the new, changed, or modified unit or operation, in pounds per year. If you know or can determine the portions that are

particulate-bound, RGM (reactive gaseous mercury), or elemental, enter that information in the appropriate columns. If you do not estimate the different forms of mercury

and just enter the total amount, MPCA staff will make that estimation based on the best available information.

5) Calculation Data:

5a) Your calculations must be included in the permit application.

5b) Provide a description of the data sources relied upon in generating the data used in item 4. This may be (but is not limited to) published emission factors, source-specific

test data, or mass balance calculations. Also include how the mercury speciation (particulate-bound, RGM (reactive gaseous mercury), or elemental) was determined. If

this information is documented elsewhere in the permit application, indicate where.

Appendix U

MPCA Mercury Total Maximum Daily Load (TMDL) Determination

MPCA Determination Regarding PolyMet’s Impact on the Reduction Goals within the Mercury TMDL Implementation Plan

3/4/2013 The U.S. Environmental Protection Agency approved Minnesota's Statewide Mercury Total Maximum Daily Load study in March 2007. The long-term goal of the mercury TMDL is for fish toxicity levels to meet water quality standards; the approach for Minnesota’s share is mass reductions from state mercury sources. The Mercury TMDL Implementation Plan includes guidelines for new mercury air emission sources and modifications to existing sources that result in increased mercury emissions. PolyMet Mining Company’s (PolyMet) proposed copper/nickel mining project has potential available mercury emissions that exceed 3 pounds per year, therefore the Guidelines for New and Modified Mercury Emissions Sources for the Minnesota Statewide Mercury Total Maximum Daily Load must be applied. The purpose of the Guidelines for New and Modified Mercury Emissions Sources is to ensure that mercury emission increases due to a new or modified mercury emission source will not jeopardize the state-wide reduction goal needed to meet water quality standards.

The New and Modified Source Guidelines are listed below with a discussion of how PolyMet is proposing to meet each guideline. This document concludes with a discussion of why the proposed project will not impede statewide mercury emission goals. (Note: Guidelines below are paraphrased.)

Guideline #1. Employ best mercury controls available. The mercury emissions sources for the proposed project are listed below with a discussion of the type of control proposed for each. Autoclave Nearly all of the mercury emissions are emitted from the autoclave: 4.1 pounds per year. Due to the high moisture content of the autoclave exhaust, dry controls such as baghouses and fabric filters are technically infeasible. For this reason, PolyMet has proposed a two-stage mercury control- a venturi scrubber followed by a packed bed wet scrubber. The venturi scrubber removes particle bound mercury. In the United States, all gold mining applications use venturi scrubbers so selection of a venturi scrubber is consistent with industry practices. A packed bed wet scrubber is most effective at removing gaseous pollutants. This ensures it will be effective at removing any oxidized mercury which has not been captured in the venturi scrubber. The two-stage mercury control system is expected to achieve 25% control for elemental mercury and 90% control for particle bound and oxidized mercury. The scrubber effluent is recycled within the hydrometallurgical process to conserve water. Water and waste solids discharged from the process which may contain mercury are sent to the Hydrometallurgical Residue Facility. The Residue Management Plan details how solid residues from the hydrometallurgical plant, which may contain mercury, will be safely managed and remain isolated from further transport to the environment. Fuels The Project will use gaseous fuels for space heating equipment and the small amount of process fuel usage. It is estimated that the permitted potential emissions from fuel will be 0.5 pounds per year. Gaseous fuels have the lowest mercury content of fossil fuels available for use in space heating, and are

considered clean fuels. Use of gaseous fuels represents the best mercury control technically feasible for fuel combustion. Guideline #2. Complete environmental review. PolyMet is completing environmental review as required by Minnesota rules and federal regulations. Cumulative mercury deposition modeling was conducted by PolyMet and submitted in January 2012 and approved by the cooperating agencies and the MPCA in August 2012. Guideline #3. Provide emission estimates to MPCA for inclusion in an enforceable document and a determination by the MPCA of whether the project will impede TMDL reduction goals. If issued, PolyMet’s draft permit will contain requirements to limit its mercury emissions. Any permit for the proposed project will contain an enforceable mercury limit, conditions to ensure that the control equipment is properly run and maintained, recordkeeping, and compliance demonstrations. The compliance demonstration requirements will ensure the mercury limit is met on an ongoing basis as well as provide information about actual emissions. Guideline # 4 and 5. As discussed below, the MPCA has determined that the PolyMet project will not impede TMDL reduction goals, therefore, Guidelines #4 and #5 are not applicable. PolyMet’s Impact on the Mercury TMDL Implementation Plan Goals For the reasons listed below, the MPCA has concluded that that the PolyMet project will not impede TMDL reduction goals:

The PolyMet project does not fit into any of the sectors with reduction goals in the TMDL, therefore it will not impede the progress of any of the sectors. PolyMet is the first proposed non-ferrous mine in the state. Because there were no existing non-ferrous sources in the state at the time that the TMDL was finalized, there was no non-ferrous sector emission reduction goal established. The mining sector goal was established specifically for the ferrous mining operations, e.g. taconite mining.

The PolyMet project will not impede progress towards the overall TMDL reduction goals. The most recent analyses of mercury emissions show that overall mercury emission reductions are occurring ahead of schedule. Significant progress in the electric generation sector, due to state statutes and a new federal standard, has resulted in mercury emission reductions in advance of what was anticipated by the TMDL. When the Mercury TMDL Implementation Plan was complete in 2009, it was projected that electric utilities would emit 1661 pounds of mercury in 2010. Actual mercury emissions in 2010 were less than half of that projection; 800.9 pounds per year. The original interim goal for the utilities sector was 355 pounds of mercury emissions per year by 2018. MPCA projects those emissions will, be less than half of that goal: less than 170 pounds per year. In addition, the MPCA’s most recent interim goal projections for 2018 do not include the recent Minnesota Power announcement to repower some units from coal to natural gas and to shut down others or Ottertail Power’s future closure of Hoot Lake. These changes will result in additional mercury emissions reductions.

The taconite sector, another large mercury emitting sector in the state, has successfully piloted mercury controls on a small scale and is now in the process of full scale pilot tests. Therefore, it is expected that the taconite sector will meet its sector reduction goal.

The magnitude of PolyMet’s project is relatively small: up to 4.6 pounds potential emissions with actual emissions less. For comparison, in 2008 there were 2,843 lbs. of mercury emissions released in Minnesota. By 2018, the MPCA forecasts those emissions will be reduced to 1,782 lbs. of mercury released. The reductions by 2018 are expected to continue to occur within the electric generation sector by coal-fired power plants converting to natural gas and using carbon injection mercury control technologies. There is also an anticipated decline in mercury containing products entering Minnesota’s solid waste which will contribute to the reductions in the mercury in product s sector.

PolyMet will have emission controls in place and an enforceable permit limit for mercury with ongoing measures to ensure compliance with that limit.

application for a permit to construct and operate ... · appendix r4 portable crushing plant ......

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