Attachment 2: Permit No. 03700016-003 technical support document 

 
Technical Support Document, Permit Action Number: 03700016-003 

Page 1 of 18 Date: 6/29/2010 

TECHNICAL SUPPORT DOCUMENT

For 

AIR EMISSION PERMIT NO. 03700016-003

This Technical Support Document (TSD) is intended for all parties interested in the permit and to meet the 

requirements that have been set forth by the federal and state regulations (40 CFR § 70.7(a)(5) and Minn. R. 

7007.0850, subp.1). The purpose of this document is to provide the legal and factual justification for each applicable 

requirement or policy decision considered in the determination to issue the permit. 

1. General Information 

1.1. Applicant and Stationary Source Location

Applicant/Address Stationary Source/Address 

(SIC Code: 3341) 

Gopher Resource, LLC 

3385 South Highway 149 

Eagan, MN 55121 

Gopher Resource, LLC 

3385 South Highway 149 

Eagan, MN 55121 

Dakota County 

Contact: Steve Yates 

Phone: 651-405-2213 

1.2. Description of the Permit Action

This permit is the reissuance of the Part 70 operating permit for Gopher Resource, LLC (Gopher). Gopher owns and 

operates a secondary lead smelter facility located at 3385 South Highway 149, Eagan, Dakota County, Minnesota. The 

facility includes the following four major operations and miscellaneous sources: scrap pretreatment, smelting, refining 

and casting. Lead is recovered from lead-acid batteries, scrap from battery manufacturing plants, and miscellaneous 

lead bearing materials. The recovered lead is refined into alloys that are sold to a variety of customers. The main 

emissions from Gopher are Carbon Monoxide (CO), Particulate Matter (PM, PM10, PM2.5), Nitrogen Oxide (NOx), 

Sulfur Dioxide (SO2), and Lead. 

1.3. Description of any Facility Changes Allowed with this Permit Issuance

This permit does not authorize any new emission units or allow for any increase in emissions. 

1.4. Description of All Amendments Issued Since the Issuance of the Last Total Facility Permit 

Permit 03700016-002, issued January 31, 2003: A major amendment to include a no slag production limit imposed 

through performance testing under Minn. R. 7017.2025, subp. 3. 

1.5. Facility Emissions

Table 1. Total Facility Potential to Emit Summary 

PM 

tpy 

PM10

tpy 

PM2.5

tpy 

SO2

tpy 

NOx

tpy 

CO 

tpy 

VOC 

tpy 

Lead 

tpy 

Single 

HAP 

tpy 

All 

HAPs 

tpy 

Total Facility Limited 

Potential Emissions 97.2 94.6 94.6 2414 162.1 97.8 13.5 13.0 13.0 61.6 

Total Facility Actual 

Emissions (2007 EI) 4.9 77.5 77.5 (1) 1683 91.5 29.0 (2) 1.2 0.4 NR (1) NR (1)

(1) HAP and PM2.5 are not reported in the Emission Inventory (EI). PM2.5 is assumed to be < the reported PM10 emissions. 

(2) This is a correction to the 2008 EI data, where credit was not taken for reduction of CO emissions due to afterburner use. 
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Table 2. Facility Classification 

Classification Major/Affected Source Synthetic Minor Minor 

PSD SO2, NOx PM, PM10, PM2.5, Lead, CO VOC 

Part 70 Permit Program SO2, NOx, PM10, PM2.5, Lead, CO VOC 

Part 63 NESHAP Subpart X - - 

1.6. Changes to Permit

The following changes have been made in the reissued permit: 

• updated to reflect current MPCA templates and standard citation formatting; 

• revised/clarified narrative descriptions of certain equipment at the request of the facility; 

• incorporated certain SIP requirements from the Administrative Order effective December 19, 1994, including 

the recordkeeping and contingency measure requirements which had inadvertently been left out of the original 

Title V permit; 

• decreased the SIP-required frequency of lead emission testing from every year to every 24 months. The 

applicable NESHAP (Subpart X) includes a more restrictive lead emission limit, and requires annual testing 

unless the facility demonstrates emission levels below 50% of the standard. If emissions are more than 50% of 

the NESHAP standard (which itself is roughly 25% of the SIP limit), the facility must test annually anyway. 

• rearranged several requirements in the permit to associate the applicable requirements with the appropriate 

emission unit or group of emission units; 

• revised the permit to reflect that the ten kettle heaters (used as an indirect heat source for the refining kettles), 

the soda ash slurry system heater, and the RMPC, refinery, and warehouse D make-up air units are all 

considered insignificant activities; 

• added sodium carbonate scrubbing (CE 010) as a SO2 control measure for the East Reverberatory Furnace 

(EU007) and blast furnace (EU009). Note: the sorbent injection point is in the ductwork downstream of 

EU007, but upstream of where the exhaust stream combines with the exhaust stream from EU009; since the 

exhaust streams combine upstream of the baghouse, the sorbent does offer some SO2 control to EU009 and is 

considered add-on control; 

• revised the facility description tables to reflect that casting is only considered a fugitive source (FS005); and 

• revised the facility description tables to reflect the correct control devices for certain fugitive sources; 

• revised the SO2 emission rate for EU007 and EU009 to be a 24-hour average, rather than a 1-hour average. 

The limit was originally set through an enforcement action. However, in order to meet the limit on a 1-hour 

average basis, the Permittee has been finding it necessary to continually shutdown and startup the furnace, 

which (1) typically results in higher emissions than just running the equipment at a steady state, and (2) results 

in increased wear on the furnace refractory material. Modeling was submitted by the Permittee showing that an 

emission rate up to approximately 2080 lb/hr, on any averaging basis (1-hour, 3-hour, 24-hour, or annual), 

does not show violation of the Minnesota/National Ambient Air Quality Standards (MAAQS/NAAQS). The 

24-hour average is the most restrictive standard. Rather than increase the hourly limit, and incur an associated 

annual limit to avoid New Source Review, the Permittee chooses to keep the existing SO2 hourly limit, but 

increase the allowed averaging time. In this way, no annual increase in SO2 emissions is allowed, the 

MAAQS/NAAQS remain protected, and the Permittee is able to meet the limit with fewer shutdown/startup 

cycles on the furnace. 

2. Regulatory and/or Statutory Basis 

New Source Review

This existing source is a major source under New Source Review (NSR) regulations because it is in one of the 28 listed 

source categories (secondary metal production plant) and SO2 and NOx are permitted at a rate of 100 tons per year or 
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greater. The permitted potential to emit of all other criteria pollutants are less than 100 tons per year. No changes 

subject to NSR are authorized by this permit. 

Part 70 Permit Program

The facility is a major source under the Part 70 permit program. 

New Source Performance Standards (NSPS)

The requirements of the New Source Performance Standards for Secondary Lead Smelters (40 CFR pt. 60, Subpart L) 

are included in this permit for the east reverberatory furnace and blast furnace (EU007 and EU009) which were each 

modified after June 11, 1973 and are considered affected facilities under this rule. The rule limits PM and opacity from 

each of the affected facilities. 

The requirements of the New Source Performance Standards for Lead-Acid Battery Manufacturing Plants (40 CFR pt. 

60, Subpart KK) are not included in this permit. The facility is not considered a lead-acid battery manufacturing plant 

as defined in 40 CFR 60.370(b). 

The requirements of the New Source Performance Standards for Stationary Compression Ignition Internal Combustion 

Engines (40 CFR pt. 60, Subpart IIII) are not included in this permit for the emergency generators (EU023 and 

EU024). The emergency generators did not commence construction after July 11, 2005 and were manufactured before 

April 1, 2006. 

National Emission Standards for Hazardous Air Pollutants (NESHAP)

The requirements of the National Emission Standards for Hazardous Air Pollutants for Secondary Lead Smelting (40 

CFR pt. 63, Subpart X) are included in this permit for Process Sources [includes the directly collected reverberatory 

furnace and blast furnace emissions (EU004, EU007, EU009) from the main stack (SV003)]; Process Fugitive Sources 

[the emissions associated with smelting and refining, but excludes the primary exhaust stream (SV003) – includes the 

emissions from refining kettles (EU011 – EU020), the scrap dryer (EU006), and the fugitive emissions from the 

charging furnaces and casting areas (FS001 - FS005), when they are not combined with the primary exhaust stream but 

are exhausted to SV002]; and Fugitive Dust Sources [the emissions from raw material handling and processing 

operations (EU001 and EU002) and FS006]. The rule limits lead compounds from each type of affected source. In 

addition, total hydrocarbon (THC) emissions from each of the furnaces are limited. Note: The compliance date of this 

rule was December 23, 1997. The company applied for a one-year extension and it was approved by the U.S. 

Environmental Protection Agency on September 12, 1996. Gopher achieved compliance with 40 CFR 63, Subpart X 

on December 23, 1998. 

The requirements of the National Emission Standards for Hazardous Air Pollutants for Industrial Process Cooling 

Towers (40 CFR pt. 63, Subpart Q) are not included in this permit for the cooling tower located at this source (note: 

the cooling tower is identified as an insignificant activity under Minn. R. 7007.1300, Subpart 4B). This rule applies to 

industrial process cooling towers that are operated with chromium-based water treatment chemicals and are located at 

major facilities for HAPs. There are no chromium-based water treatment chemicals used in the cooling tower at this 

source. 

The requirements of National Emission Standards for Hazardous Air Pollutants for Reciprocating Internal Combustion 

Engines (40 CFR pt. 63, Subpart ZZZZ) are not included for the emergency generators (EU023 and EU024). Pursuant 

to 40 CFR 63.6590(b)(3), existing emergency stationary RICE (with a site rating of less than or equal to 500 brake HP 

located at a major source of HAP emissions which commenced construction or reconstruction before June 12, 2006) do 

not have to meet the requirements of this subpart and of subpart A of this part. No initial notification is necessary. 

The requirements of National Emission Standards for Hazardous Air Pollutants for Lead Acid Battery Manufacturing 

Area Sources (40 CFR pt. 63, Subpart PPPPPP) are not included in this permit. Gopher is not a lead acid battery 

manufacturing source. 

Compliance Assurance Monitoring (CAM) Applicability

In order for CAM to apply, a pollutant-specific-emissions-unit at a source that requires a Part 70 permit must meet 

three criteria for a given pollutant: 1) the unit has pre-control potential emissions of the applicable regulated air 

pollutant equal to or greater than 100 percent of the amount required for a source to be classified as a major source; 2) 
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the unit is subject to an applicable emission limitation or standard for the applicable regulated air pollutant; and 3) the 

unit uses a control device to achieve compliance with the applicable emission limitation or standard. 

Gopher’s CAM Plan can be found in Attachment 1 to this technical support document. The following table is used to 

identify the applicability of each of the criteria, under 40 CFR 64.1, to each emission unit which has an uncontrolled 

emission rate in excess of 100 tpy of any pollutant (10 tpy of any HAP): 
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Table 3. CAM Applicability for Units with Uncontrolled PTE at or Above Major Source Thresh

Unit Control Pollutants 

with limits 

Does CAM Apply? Why or Why Not? Monitori

EU001 CE001 Wet Scrubber PM, Lead No Uncontrolled PM is less than 100 

tpy, uncontrolled Lead is less than 10 tpy 

Regular prequireme

EU002 CE002 Fabric Filter PM, Lead No Uncontrolled PM is less than 100 

tpy, uncontrolled Lead is less than 10 tpy 

Regular prequireme

EU004 CE004/CE005 Fabric 

Filters (main) 

PM, VOC, Lead, Lead compounds, SO2

No for VOC, SO2 and 

Lead Compounds Yes for PM and Lead 

VOC and SO2 are uncontrolled 

Lead compound limit is from a post-11/15/90 standard (NESHAP Subpart X) Uncontrolled Lead is 1170 tpy; Lead limit is approximately 5.75 lb/hr (Lead SIP limit for SV002 and SV003); uncontrolled Lead is 266.5 lb/hr (so controls needed to meet limit), and controlled Lead is approximately 8.5 tpy (so not a Large PSEU) Uncontrolled PM is 916 tpy; PM limit is approximately 35 lb/hr (Minn. R. 7011.0610 for SV003); uncontrolled PM is 209 lb/hr (so controls needed to meet limit), and controlled PM is approximately 48.6 tpy (so not a Large PSEU). 

Regular prequiremeSO2. 

NESHAP requiremecompounCAM for for PM anCE005 

EU006 CE004/CE005 Fabric 

Filters 

PM, Lead No Uncontrolled PM is less than 100 

tpy; uncontrolled Lead is less than 10 tpy 

Regular prequiremerequiremeCE005 fo

EU007 CE004/CE005 Fabric PM, VOC, No for SO2, VOC, and Combined uncontrolled SO2 is Regular p
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Unit Control Pollutants 

with limits 

Does CAM Apply? Why or Why Not? Monitori

+ EU009 

Filters (main) Lead, Lead 

compounds, SO2

Lead Compounds Yes for PM and Lead 

approximately 485 lb/hr; SO2 limit 

is 530 lb/hr (so controls not needed for unit to meet limit) Lead compound and VOC limits are from a post-11/15/90 standard (NESHAP Subpart X) Uncontrolled Lead is 5500 tpy (4270 tpy for EU007 + 1280 tpy for EU009); Lead limit is approximately 5.75 lb/hr (Lead SIP limit for SV002 and SV003); uncontrolled Lead is 1268 lb/hr (975 lb/hr for EU007 + 293 lb/hr for EU009) (so controls needed to meet limit), and controlled Lead is approximately 8.5 tpy (so not a Large PSEU) Uncontrolled PM is 3674 tpy (3351 tpy for EU007 + 323 tpy for EU009); PM limit is approximately 35 lb/hr (Minn. R. 7011.0610 for SV003); uncontrolled PM is 838.8 lb/hr (765 lb/hr for EU007 + 73.8 lb/hr for EU009) (so controls needed to meet limit), and controlled PM is approximately 48.6 tpy (so not a Large PSEU). 

requireme

NESHAP requiremecompounCAM for for PM anCE005 
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Unit Control Pollutants 

with limits 

Does CAM Apply? Why or Why Not? Monitori

EU011 – EU020 

CE004/CE005 Fabric Filters (main) CE003 (fugitives) 

PM, Lead, Lead compounds, SO2

No Uncontrolled PM and SO2 are less 

than 100 tpy; uncontrolled Lead is less than 10 tpy Lead compound limit is from a post-11/15/90 standard (NESHAP Subpart X) 

Regular prequiremerequiremeCE005 fo

EU021 CE006 Fabric Filter PM No Uncontrolled PM is less than 100 

tpy 

Regular prequireme

EU023 None SO2 No Unit is uncontrolled Regular p

requireme

EU024 None SO2 No Unit is uncontrolled Regular p

requireme

EU025 None PM No Unit is uncontrolled Regular p

requireme
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Best Available Retrofit Technology (BART) 40 CFR 51, Appendix Y

The requirements of 40 CFR 51, Best Available Retrofit Technology, are not included in this permit for any of the 

emission units located at Gopher. In order for this rule to apply, emission units located at a source must meet three 

criteria: 1) the emission(s) units at the facility must fit within one of the twenty-six (26) categories listed in the 

Guidelines; 2) the emission unit(s) were in existence on August 7, 1977 and began operation at some point on or after 

August 7, 1962; and 3) the sum of the potential emissions from all emission unit(s) identified in the previous two 

bullets must be greater than 250 tons per year of the visibility-impairing pollutants: sulfur dioxide (SO2), nitrogen 

oxide (NOx), and PM10. The MPCA performed a source-specific analysis using the CALPUFF model and determined 

that Gopher does not cause or contribute to visibility impairment in a Class I area. Therefore, the MPCA has exempted 

Gopher from BART (for further details, refer to http://www.pca.state.mn.us/publications/rhsip-chapter9.pdf ). 

Minnesota State Rules

Portions of the facility are subject to the following Minnesota Standards of Performance: 

• Minn. R. 7011.0715 Standards of Performance for Post-1969 Industrial Process Equipment 

• Minn. R. 7011.2300 Standards of Performance for Stationary Internal Combustion Engines 

Table 4. Regulatory Overview of Facility 

EU, GP, 

or SV Applicable Regulations Comments 

TF State Implementation Plan 

(SIP) for Lead NAAQS; 40 

CFR pt. 50; 40 CFR pt. 51; 40 

CFR pt. 52, subp. Y; MN SIP 

See Section 3.1 - State Implementation Plan (SIP) Lead 

Administrative Order. 

 40 CFR § 52.21(r)(6) Permittee must keep certain records when determining through the 

actuals-to-projected-actuals test that a proposed modification is not 

subject to New Source Review. 

 Minn. R. chs. 7002, 7007, 

7009, 7011, 7019, 7030 

Table A contains requirements that apply to all facilities in 

Minnesota. Reporting and monitoring requirements are contained 

in Table B of the permit. Note: For this permit, certain permit 

requirements and limits are listed in the appendices of the permit 

instead of Table A. 

40 CFR 63, Subpart X 

(National Emission Standards 

for Hazardous Air Pollutants 

for Secondary Lead Smelting) 

Facility is subject to certain reporting requirements specific to 

Subpart X. 

GP001 40 CFR pt. 63, subp. X Furnaces are subject to 40 CFR § 63.543 

GP002 40 CFR pt. 63, subp. X Process fugitive sources (as defined in the standard) are subject to 

40 CFR § 63.544 

GP003 40 CFR pt. 63, subp. X Fugitive dust sources (as defined in the standard) are subject to 40 

CFR § 63.545 

GP004 40 CFR pt. 63, subp. X Control equipment used to meet the standards are subject to the 

requirements of 40 CFR § 63.548, in addition to the typical 

monitoring requirements. 
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EU, GP, 

or SV Applicable Regulations Comments 

GP005 Minn. R. 7011.2300 Standards of Performance for Stationary Internal Combustion 

Engines. The emergency generators (EU023 and EU024) are 

considered stationary internal combustion engines. The rule limits 

Opacity and SO2 (sulfur content of the fuel), and requires 

recordkeeping. 

GP006 40 CFR pt. 60, subp. L (New 

Source Performance Standards 

for Secondary Lead Smelters) 

Blast furnace and east reverberatory furnace are subject to Subpart 

L. 

GP007 State Implementation Plan 

(SIP) for Lead NAAQS; 40 

CFR pt. 50; 40 CFR pt. 51; 40 

CFR pt. 52, subp. Y; MN SIP 

Because the Administrative Order does not allow an increase in 

lead emissions, it is essential that the combined emissions of the 

new torit stack and the existing torit stack do not exceed the 

emissions allowed in the Order. 

SV001 40 CFR pt. 63, subp. X This is the emission point for the raw material processing operation 

(EU001). EU001 is subject to 40 CFR § 63.545, and compliance 

with the emission rate must be demonstrated at the stack exhaust. 

SV002 

State Implementation Plan 

(SIP) for Lead NAAQS; 40 

CFR pt. 50; 40 CFR pt. 51; 40 

CFR pt. 52, subp. Y; MN SIP 

Compliance with the emission limits for all units that exhaust to 

SV002 must be shown at SV002. SV002 is designated in the 

Administrative Order as “Source 3.” 

 40 CFR pt. 63, subp. X 

SV003 

Minn. R. 7009.0020 

Stipulation Agreement between MPCA and Gopher to achieve 

compliance with SO2 emission limit. 

On February 26, 1991, the MPCA and Gopher entered into a 

Stipulation Agreement. The agreement required Gopher to submit a 

plan and schedule that was designed to achieve a total SO2

emission limit of 530 lbs/hr. On May 22, 1991, the MPCA staff 

reviewed and approved the SO2 reduction plan, which Gopher will 

continue to operate under these conditions. 

State Implementation Plan 

(SIP) for Lead NAAQS; 40 

CFR pt. 50; 40 CFR pt. 51; 40 

CFR pt. 52, subp. Y; MN SIP 

This stack exhausts hydrocarbon, particulate, and lead emissions 

from emission units subject to the Administrative Order, 40 CFR 

 40 CFR pt. 63, subp. X §§ 63.543 and 63.544, and 40 CFR § 60.122 

 40 CFR pt. 60, subp. L 

Minn. R. 7017.2025, subp. 3 A no slag production limit was imposed through performance 

testing under Minn. R. 7017.2025, subp. 3. 

SV008 40 CFR pt. 63, subp. X This stack exhausts emissions collected by filters collecting 

fugitive emissions subject to 40 CFR §§ 63.544 and 63.545. 

EU021 Minn. R. 7011.0715 (Standards 

of Performance for Post-1969 

Industrial Process Equipment) 

Equipment was installed in 1992. 
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EU, GP, 

or SV Applicable Regulations Comments 

CE001 

(wet 

scrubber) 

Standard monitoring 

requirements for wet scrubbers 

not subject to CAM 

This control device is not subject to NESHAP Subpart X. 40 CFR § 

63.548(i) applies to wet scrubbers controlling “particulate matter 

and metal hazardous air pollutant emissions from a process fugitive 

source...”; EU001 is a fugitive dust source, not a process fugitive 

source as defined in Subpart X. 

CE002 

CE003 

State Implementation Plan 

(SIP) for Lead NAAQS; 40 

CFR pt. 50; 40 CFR pt. 51; 40 

CFR pt. 52, subp. Y; MN SIP 

These control devices are subject to the Administrative Order 

requirements for cartridge collectors, and the NESHAP Subpart X 

requirements for dust collectors. The exception is that because 

CE002 collects dust only from EU002, which is a fugitive dust 

source subject to 40 CFR § 63.545, broken bag detectors are not 

required by Subpart X; CE002 collects dust from process fugitive 

sources as well as fugitive dust sources, and therefore does not fall 

under the exemption at 40 CFR § 63.548(h), 

 40 CFR pt. 63, subp. X 

CE004 

CE005 

State Implementation Plan 

(SIP) for Lead NAAQS; 40 

CFR pt. 50; 40 CFR pt. 51; 40 

CFR pt. 52, subp. Y; MN SIP 

These control devices are subject to the Administrative Order 

requirements for cartridge collectors, the NESHAP Subpart X 

requirements for dust collectors, and CAM 

 40 CFR pt. 63, subp. X 

 40 CFR pt. 64 

CE006 Minn. R. 7007.0800 Standard monitoring requirements for fabric filters not subject to 

CAM 

CE007 40 CFR pt. 63, subp. X This afterburner is subject to an Alternative Monitoring Method 

approved by EPA on July 29, 1989. 

CE008 

CE009 

40 CFR pt. 63, subp. X These control devices are subject to the requirements under 

NESHAP Subpart X for dust collectors. 

CE010 NA CAM is not applicable, because no individual unit controlled by 

CE010 needs the control to meet the SO2 limit. Because an SO2

CEMS is used to track emissions, the permit includes no specific 

operating conditions for the sorbent injection. 

MR001 Minn. R. 7007.1170 Quality Assurance and Control Requirements for Continuous 

Emission Monitoring (CEMS). 

CEMS will be used on a continuous basis to measure SO2

emissions. 

3. Technical Information

3.1. State Implementation Plan (SIP) Lead Administrative Order

On June 22, 1993, the MPCA submitted a SIP revision including a request for redesignation from nonattainment to 

attainment to the EPA in response to a designation to nonattainment, effective January 6, 1992, for an area in Dakota 

County, Minnesota. 

The MPCA submittal consisted of an administrative order for Gopher Smelting and Refining Company (currently 

known as Gopher Resource, LLC) requiring the installation and operation of a continuous monitoring system, 

recordkeeping, and terms detailing the timing and content of compliance reports. EPA sent a letter to the MPCA on 

April 8, 1994, identifying specific issues pertaining to the proposed SIP revision. In response to those issues, the 
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MPCA amended the original administrative order for Gopher and resubmitted it to EPA. The final order became 

effective December 19, 1994. 

The MPCA wrote the requirements of Gopher's Administrative Order into the original Part 70 permit that was issued 

on August 15, 2002. After permit issuance, the MPCA requested EPA remove the Administrative Order from the SIP, 

replacing it with the equivalent requirements now written into the Part 70 permit in such a way (cited as Title I 

conditions) that they would remain non-expiring (even though Part 70 permits have a five-year life). EPA did not 

approve this request and, in 2007, the MPCA withdrew their request to replace the Administrative Order with the Part 

70 permit. 

In this Title V Reissuance MPCA has again incorporated SIP requirements from the Administrative Order effective 

December 19, 1994, including certain recordkeeping and contingency measures which had inadvertently been left out 

of the original Title V permit. Some of the other requirements from the Administrative Order have been reworded in 

the permit, to reflect current permitting requirements. It is the intent that Permit 03700016-003 be included in the SIP, 

and the Administrative Order removed from the SIP. The Administrative Order, as amended on December 19, 1994, is 

included as Attachment 3 to this document. 

Facility Changes and the Administrative Order

One of the requirements of the Administrative Order is that the Order must be modified if changes are made that 

negatively affect the modeling or modeled parameters. A SCREEN3 analysis was done to show that the addition of 

the two new baghouses and new stack does not negatively affect the modeled compliance with the lead NAAQS. 

The facility as described in the Administrative Order was modeled to be in compliance with the lead NAAQS of 1.5 

μg/m3

. The following are the modeled parameters, taken from Appendix B of Gopher’s original Title V permit: 

Parameter Main Stack (SV003) Existing Torit Stack (SV002) 

Stack Height (ft) 199 80 

Stack Diameter (ft) 6 8 

Exhaust Temp (° F) 154 68 

Flow Rate (acfm) 119000 166000 

Gopher added a 2nd Torit stack (SV008) and two additional Torit dust collectors, collecting additional lead emissions 

from raw material handling, battery breaking dock, material transfer rooms, and the furnace areas; these dust collectors 

will exhaust to the new SV008. The purpose of these dust collectors is to control dust that was observed to “leak” 

from various points, dust that has been assumed to be going to the existing Torit stack (SV002). Thus, there will be no 

new emissions resulting from the addition of SV008. Rather, the permitted emissions that before were assumed to all 

be going to SV002 will now be split between SV002 and SV008. Exactly how much is going to each stack is not 

known. There will be no effect on the emissions of SV003. 

To show that the addition of SV008 (which will emit some unknown fraction of the emissions previously modeled at 

SV002) does not have a negative impact on the modeled concentration of ambient lead, EPA’s screen modeling 

application SCREEN3 was used to model 3 scenarios: 

Scenario 1: The permitted (and allowed by the Administrative Order) lead emissions were modeled from SV002, 

using the stack parameters from the original Title V permit. 

Scenario 2: The same permitted (and allowed by the Administrative Order) lead emissions were modeled from the 

new SV008 instead of SV002, using SV008 parameters provided by Gopher. 

Scenario 3: A reduced lead emission rate (emissions limited by NESHAP Subpart X, which was not in effect at 

the time of development of the Administrative Order, but will apply to SV008, and in fact applies to SV002 at this 

time) was modeled from SV008, using stack parameters provided by Gopher. 

The results of the SCREEN3 analysis showed is that the addition of SV008 will not result in negative ambient impacts. 

The same mass emission rate, when modeled from SV008 instead of SV002, resulted in lower modeled maximum 

ambient impacts. Since we already know that the “real” modeled impacts from SV002 (meaning the modeled impacts 
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using refined modeling tools rather than the screening model used here) are not in violation of the applicable lead 

NAAQS (1.5 μg/m3

), and since we have just shown that SCREEN3 impacts from SV008 are less than the SCREEN3 

impacts from SV002, we can say that that impacts from SV008 would not cause a violation of the NAAQS, and in fact 

can say that SV008 results in lower ambient impacts than SV002, and does not negatively affect the modeled 

compliance with the NAAQS, as demonstrated for the Administrative Order. 

3.2. Revised Lead NAAQS

On October 15, 2008, the NAAQS for lead was changed from 1.5 μg/m3

 to 0.15 μg/m3. The effective date is January 

12, 2009. The MPCA was required to submit to EPA, by October 15, 2009, a request for designation of areas of the 

State, including the area around Gopher, as either in attainment or nonattainment (or unclassifiable) with the lead 

NAAQS based on monitoring data for 2006 through 2008. EPA must now formally designate the area as either in 

attainment or nonattainment with the revised standard by October 15, 2010. If the designation is "nonattainment", 

MPCA must work with Gopher to develop a plan for achieving attainment with the revised standard. The State 

Implementation Plan is due 18 months after final designation by EPA. States with nonattainment areas will be required 

to attain the standard as 'expeditiously as practicable', but no later than five years from the effective date of the 

nonattainment designation (October 2015). With the addition of the two new filters, the facility is reducing overall lead 

emissions in response to the lower NAAQS. 

3.3. Calculations of Potential to Emit

Attachment 4 to this TSD contains a detailed spreadsheet prepared by MPCA using information provided by Gopher 

showing the potential to emit calculations for each emission unit. Note that the limited PTE is sometimes used in the 

spreadsheet instead of the unrestricted PTE. More specifically, the calculations of unrestricted PTE for Lead 

Compounds/Lead, PM, PM10, SO2, and TOC are based on the permitted limits of stacks SV001, SV002, and SV003. 

As a result, the PTE summary for total NOx, CO, and HAP are based solely on calculations using emission factors and 

equipment capacity, but Lead compounds/Lead, PM, PM10, SO2, and VOC are based partially on emission factors and 

equipment capacity, and reflect federally enforceable emission limits. 

For the fuel combustion emissions at the refining kettles, all were listed in Delta at the associated SV level. 

3.4. SO2 Modeling

The permit currently includes an SO2 limit at SV003, which was based on modeling done as a result of an enforcement 

action. The limit was originally set as a 1-hour average. The Permittee wished to have a less restrictive limit, because 

meeting the limit on a 1-hour average was resulting in excessive startup and shutdown, which in turn causes excess 

wear on the furnace. In addition, emissions are typically higher during startup and shutdown. 

The Permittee submitted modeling showing that emissions as high as 2080 pounds per hour (limit is 530 pounds per 

hour), on a 1-hour, 3-hour, 24-hour, or annual basis, would not cause a problem with the SO2 NAAQS. The Permittee 

does not wish to increase the limit to 2080 pounds per hour, but rather would like to keep the 530 pounds per hour and 

change it to a 24-hour average. Although the modeling analysis report (see Attachment 5) recommends Tier 4 

modeling language in the permit (where any change triggers remodeling), that recommendation is based on an 

emission rate of 2080 pounds per hour. Because the emission rate will be maintained at 530 pounds per hour, 25% of 

the modeled emission rate, the decision was to use the Tier 1 modeling language (where there are no remodeling 

triggers). 

3.5. Periodic Monitoring

In accordance with the Clean Air Act, it is the responsibility of the owner or operator of a facility to have sufficient 

knowledge of the facility to certify that the facility is in compliance with all applicable requirements. 

In evaluating the monitoring included in the permit, the MPCA considers the following: 

• The likelihood of violating the applicable requirements; 

• Whether add-on controls are necessary to meet the emission limits; 
Technical Support Document, Permit Action Number: 03700016-003 

Page 13 of 18 Date: 6/29/10 

• The variability of emissions over time; 

• The type of monitoring, process, maintenance, or control equipment data already available for the emission 

unit; 

• The technical and economic feasibility of possible periodic monitoring methods; and 

• The kind of monitoring found on similar units elsewhere. 

Table 5 summarizes the periodic monitoring requirements for those emission units for which the monitoring required 

by the applicable requirement is nonexistent or inadequate. 

Table 5. Periodic Monitoring 

Emission 

Unit or 

Group 

Requirement (basis) Additional 

Monitoring Discussion 

GP001 

(EU004, 

EU007, 

EU009) 

Lead Compounds: <

0.00087 gr/dscf using 

a 3-hour average 

(40 CFR § 63.543(a)) 

Annual stack 

testing, except as 

allowed by the 

standard. 

This is the monitoring required by the standard. 

Can be reduced to every 2 years under certain 

conditions. Takes place at SV003. 

 Total Hydrocarbons: 

< 360 ppm when 

reverberatory 

furnaces are not 

operating, < 20 ppm 

when furnaces are 

operating 

simultaneously 

(40 CFR § 63.543(c)) 

Monitor natural gas 

and propane usage, 

compare to usage 

during most recent 

test demonstrating 

compliance 

Alternative monitoring approved by EPA on July 

29, 1998. See Attachment 2. 

GP002 

(EU006, 

EU011 – 

EU020, 

FS001 – 

FS005) 

Lead Compounds: <

0.00087 gr/dscf using 

a 3-hour average 

(40 CFR § 63.544) 

Annual stack 

testing, except as 

allowed by the 

standard. 

This is the monitoring required by the standard. 

Can be reduced to every 2 years under certain 

conditions. Takes place at SV002. 

GP003 

(EU001, 

EU002, 

FS006) 

Lead Compounds: <

0.00087 gr/dscf using 

a 3-hour average 

(40 CFR § 63.545) 

Annual stack 

testing, except as 

allowed by the 

standard. 

This is the monitoring required by the standard. 

Can be reduced to every 2 years under certain 

conditions. Testing of EU001 takes place at 

SV001. Testing of EU002 and FS006 takes place 

at SV002. 

GP005 

(EU023, 

EU025) 

SO2: < 0.5 lb/MMBtu 

Opacity: < 20% 

(Minn. R. 7011.2300) 

Fuel limited to 

diesel fuel oil, 

records must be kept 

PTE at design capacity is approximately 0.29 

lb/MMBtu. 

GP006 

(EU007, 

EU008) 

PM: < 0.022 gr/dscf 

Opacity: < 20% 

(40 CFR § 60.122) 

Periodic stack 

testing 

Stack testing takes place at SV003. 

GP007 

(SV002, 

SV008) 

Lead: < 3.45 lb/hr, 

combined 

(derived from limits 

Annual stack testing Stack testing takes place at SV002 and SV003. 
Technical Support Document, Permit Action Number: 03700016-003 

Page 14 of 18 Date: 6/29/10 

Emission 

Unit or 

Group 

Requirement (basis) Additional 

Monitoring Discussion 

in Adminstrative 

Order) 

SV001 Lead Compounds: <

0.00087 gr/dscf using 

a 3-hour average 

(40 CFR § 63.545) 

PM: variable with 

process weight rate 

and air flow 

Opacity: < 20% 

(Minn. R. 7011.0715) 

Periodic stack 

testing; proper 

control equipment 

O&M 

Standard requires testing to demonstrate 

compliance with the lead compound emission 

rate, but does not specify a frequency. Frequency 

will be set after initial performance test. 

SV002 Lead Compounds: <

0.00087 gr/dscf using 

a 3-hour average 

(40 CFR §§ 63.545 & 

63.444) 

Lead: < 0.0025 

gr/dscf 

Opacity: < 5% 

(Administrative Order 

for Lead SIP) 

Periodic stack 

testing; proper 

control equipment 

O&M 

Administrative Order for Lead SIP required 

annual testing for lead and opacity. Propose 

reducing that to every 24 months. 

NESHAP Subpart X requires annual testing of 

lead compounds, but allows that frequency to be 

changed to every 24 months if the measure lead 

compounds are less than or equal to 0.00044 

gr/dscf. 

SV003 Lead: ≤ 0.00306 

gr/dscf 

Opacity: < 5% 

(Administrative Order 

for Lead SIP) 

Lead compounds: 

≤ 0.00087 gr/dscf (40 

CFR §§ 63.543 & 

63.544) 

PM: ≤ 0.022 gr/dscf 

Opacity: < 20% 

(40 CFR § 60.122) 

PM: variable with 

process weight rate 

and air flow 

(Minn. R. 7011.0610) 

Annual and period 

stack testing; proper 

O&M of control 

equipment 

Administrative Order for Lead SIP required 

annual testing for lead and opacity. Propose 

changing that to every 24 months. 

NESHAP Subpart X requires annual testing of 

lead compounds, but allows that frequency to be 

changed to every 24 months if the measure lead 

compounds are less than or equal to 0.00044 

gr/dscf. 

Test frequency plan will be established for PM. 

Control devices (Baghouses CE004 and CE005) 

are subject to CAM for “other” PSEU. 

 SO2: ≤ 530 lbs/hr on 

a 24- hour basis 

(SO2 reduction plan 

SO2 CEMS; proper 

operation of lime 

injection operation 

Because the unit is not subject to CAM, and 

CEMS is used to track emissions, no specific 

operating requirements are included for the 
Technical Support Document, Permit Action Number: 03700016-003 

Page 15 of 18 Date: 6/29/10 

Emission 

Unit or 

Group 

Requirement (basis) Additional 

Monitoring Discussion 

under Stipulation 

Agreement signed 

2/26/91, limit 

modified according to 

modeling completed 

November 2009) 

sodium carbonate scrubbing 

 Total Hydrocarbons 

(THC): ≤ 20 ppm by 

volume when blast 

and reverberatory 

furnaces are both 

operating 

THC: ≤ 360 ppm by 

volume when 

reverberatory 

furnaces are not 

operating 

(40 CFR § 63.543) 

Alternative 

monitoring for the 

afterburner used to 

control THC has 

been approved by 

EPA. The 

monitoring includes 

monitoring fuel 

usage. 

See Attachment 2 

SV008 Lead Compounds: <

0.00087 gr/dscf using 

a 3-hour average 

(40 CFR §§ 63.545 & 

63.444) 

Opacity: < 5% 

(Administrative Order 

for Lead SIP) 

Annual stack 

testing; proper 

control equipment 

O&M 

Administrative Order for Lead SIP requires 

annual testing for lead and opacity. While lead is 

not explicitly limited at SV008, because the 

Administrative Order allows no increase in lead, 

and some of the lead emissions previously 

counted at SV002 will now be exhausted through 

SV008, GP007 includes a combined limit for 

Lead emissions from SV002 + SV008, equal to 

the mass emissions allowed under SV002. 

Testing at SV008 concurrently with SV002 is 

required in order to show compliance with the 

limit at GP007. 

NESHAP Subpart X requires annual testing of 

lead compounds, but allows that frequency to be 

changed to every 24 months if the measure lead 

compounds are less than or equal to 0.00044 

gr/dscf. 

EU021 PM: variable with 

process weight rate 

and air flow 

Opacity: < 20% 

(Minn. R. 7011.0715) 

PM/PM10: < 0.01 

gr/dscf 

(Minn. R. 7011.0100, 

subp. 35a) 

Proper control 

equipment O&M 

Applicant used 0.01 gr/dscf in original 

application as PTE. When the fabric filter on the 

bin vent is properly operated, noncompliance is 

unlikely. This operation would likely not be a 

good candidate for testing. 
Technical Support Document, Permit Action Number: 03700016-003 

Page 16 of 18 Date: 6/29/10 

3.6. Insignificant Activities

Gopher has several operations which are classified as insignificant activities. These are listed in Appendix C to the 

permit. The permit is required to include periodic monitoring for all emissions units, including insignificant activities, 

per EPA guidance. The insignificant activities at this Facility are only subject to general applicable requirements. 

Using the criteria outlined earlier in this TSD, the following table documents the justification why no additional 

periodic monitoring is necessary for the current insignificant activities. 

Table 6. Insignificant Activities 

Insignificant Activity General Applicable 

Emission limit Discussion 

Emissions from a laboratory, as defined 

in Minn. R. 7007.1300, subp. 3(G) 

PM Limit (variable 

depending on airflow) 

Opacity < 20% 

(Minn. R. 7011.0710/715) 

These are very small, intermittent, 

bench-top operations that typically do 

not emit air pollution. It is highly 

unlikely that they could violate the 

applicable requirement. 

Brazing, soldering or welding 

equipment, as defined in Minn. R. 

7007.1300, subp. 3(H) 

PM, variable depending 

on airflow 

Opacity < 20% 

(Minn. R. 7011.0710/715) 

Based on EPA published emissions 

factors, it is highly unlikely that these 

units could violate the applicable 

requirement. In addition, these units 

are typically operated and vented 

inside a building, so testing for PM or 

opacity is not feasible. 

Individual units with potential emissions 

of 2.28 pounds per hour or actual 

emissions of one ton per year for certain 

pollutants, as defined in Minn. R. 

7007.1300, subp. 4(H), including: 

• Operation of acetylene and chemolene cutting torches in scrap 

pretreatment area. 

• Operation of one Safety-Kleen 

solvent station 

• Material handling of coke 

• Use of VOC –containing materials 

in water treatment plant 

• Operation of cooling tower 

• Kettle heaters used as an indirect 

heat source for the refining kettles 

• Soda ash slurry system heater 

• RMPC make-up air unit 

• Refinery make-up air unit 

• Warehouse D make-up air unit 

Requirement to take 

reasonable measures to 

prevent PM from 

becoming airborne (Minn. 

R. 7011.0150) 

The fuel burning equipment listed 

under Minn. R. 7007.1300, subp. 4(H), 

do not qualify as activities defined in 

Minn. R. 7007.1300, subp. 2(A) 

because the units have heat input 

capacities greater than 500,000 

Btu/hour. Note: the three make-up air 

units are 1.56, 2.70, and 3.78 

MMBtu/hr. 

3.7. Permit Organization

In general, the permit meets the MPCA Delta Guidance for ordering and grouping requirements. One area where this 

permit deviates slightly from Delta guidance is in the use of appendices. While appendices are fully enforceable parts 

of the permit, they are word processing sections and are not part of the tracking system. In general, any requirement 

that the MPCA thinks should be trackable should be in Table A or B. However, for this permit, certain permit 

requirements and limits are listed in the appendices of the permit instead of Table A or B. Violation of the appendices 
Technical Support Document, Permit Action Number: 03700016-003 

Page 17 of 18 Date: 6/29/10 

can be enforced, but the computer system will not automatically generate the necessary enforcement notices or 

documents, which must be generated by staff. 

Note: the appendix B is a table of parameters relied upon in modeling on how to show compliance with the national 

ambient air quality standards and the SIP requirements. The appendix C is the listing of Insignificant Activities and 

their applicable requirements. The appendixes D through I are the SIP requirements. This is a fairly standard way to 

include these in the permit, since it is highly unlikely the MPCA would need to have these as trackable items in the 

Delta database. 

3.8. Comments Received

Public Notice Period: February 18, 2010 – March 19, 2010 

EPA 45-day Review Period: February 18, 2010 – April 5, 2010; May 11, 2010 – June 25, 2010

Comments were received from the public during the public notice period. The comments received did not include 

adverse comments on applicable requirements of the permit. However, changes to the permit were not made as a result 

of the comments. The commentor requested three changes to the draft permit: 

• Additional emission limits for the purpose of decreasing the allowable annual lead emissions. 

• Additional requirements to ensure compliance with 2008 Leads NAAQS 

• Additional ambient monitoring. 

All of these requests were denied, and no changes were made to the draft permit. There is no regulatory basis for a 

decrease in allowable lead emissions. Upcoming revisions to the secondary lead smelting MACT standard will likely 

result in significant decrease in allowable lead emissions. The timing of compliance with the 2008 Lead NAAQS 

depends on EPA’s designation of the area as attainment or nonattainment, which is scheduled to happen by October 

15, 2010. This has also been addressed in section 3.2 of this Technical Support Document. Finally, additional lead 

monitoring is beyond the scope of this Part 70 Reissuance permit. It is possible that additional monitoring may be 

included in the State Implementation Plan, if the area surrounding the facility is designated as nonattainment. 

The comment letter received, and MPCA’s written response, are included as Attachment 6 to this document. 

The proposed permit was sent via email to EPA for their 45-day review on May 11, 2010. Comments were not 

received from EPA during their review period, and no changes to the permit were made 

4. Permit Fee Assessment 

This permit action is the reissuance of an individual Part 70; therefore, no application fees apply under Minn. R. 

7002.0016, subp. 1. 

5. Conclusion 

Based on the information provided by Gopher, the MPCA has reasonable assurance that the proposed operation of the 

emission facility, as described in the Air Emission Permit No. 03700016-003, and this TSD, will not cause or 

contribute to a violation of applicable federal regulations and Minnesota Rules. 

Staff Members on Permit Team: Toni Volkmeier (permit writer/engineer) 

 Brent Rohne (enforcement) 

 Shanda Fisher (stack testing) 

 Catherine Neuschler (existing lead SIP) 

 Gordon Andersson (revised lead NAAQS) 

 Melissa Sheffer (modeling) 

 Amrill Okonkwo (peer reviewer) 

 Laurie O’Brien (administrative support) 

AQ File No. 675; DQ 1402 

Attachments: 1. CAM Plan 

 2. Alternative Monitoring Memos 
Technical Support Document, Permit Action Number: 03700016-003 

Page 18 of 18 Date: 6/29/10 

 3. PTE Summary and Calculation Spreadsheets 

 4. Facility Description and CD-01 Forms 

 5. Modeling Analysis Report 

 6. Public Comments and MPCA Response 
Attachment 1 

CAM Plan 
Compliance Assurance Monitoring (CAM) Plan

High Temperature Baghouse for PM Control

Background

A. Source Infonnation

Facility:

Emission Unit Descriptions:

Emission Unit IDs:

Stack IDs:

APCD IDs:

Gopher Resource Corporation

3385 South Highway 149

Eagan, MN 55121

West Reverbatory Furnace, Scrap Dryer, East Reverbatory Furnace,

Blast Furnace

EU 004, EU 006, EU 007, EU 009

SV003

CE 004, CE 005

B. Applicable Regulation, Emissions Limit, and Monitoring Requirements

Regulation:

Emissions Limits:

Regulation:

Emissions Limits:

Requirements:

Regulation:

Requirements:

Permit 03700016-002, page A-16. 40 CPR Section 6O.122(a)(l).

Standards of Perfonnance for Secondary Lead Smelters.

TPM: less than 0.022 gr/dscf using 3-hour average [50 mgldscm].

Opacity: less than or equal to 20 %.

Permit 03700016-002, pages A-lO and A-16. Title I Condition: SIP for

Lead NAAQS 40 CPR pt. 50 and MN State Implementation Plan (SIP)

for Lead

Opacity: less than or equal to 5 %.

Pressure Drop: greater than or equal to 1.0 inches of water column and

less than or equal to 10.0 inches of water column (CE 004 and CE 005)

Air Pollution Control Equipment Monitors: The owner or operator shall

operate and maintain pressure drop gauges and broken media detectors,

which are described in Appendix B, to measure pressure drop across the

cartridge filters and baghouse cells in inches of water and an increase in

particulate grain loading at each baghouse and cartridge filter outlet.

Each broken media detector shall be equipped with a device that

continually records grain loading, and an alarm that alerts the owner or

operator personnel of increases in grain loading.

Alarm Triggers: In the event that the alarm on a broken media detector is

triggered, the owner or operator shall immediately isolate the cartridge

bank or baghouse cell for which the alarm was triggered as described in

Appendix G of this permit.

Permit 03700016-002, pages A-lO, A-ll, and A-12. MACT X, 40 CPR

Section 63.548(a), (b), (c), (d), (e), and (t)

(a) Owners and operators of secondary lead smelters.shall prepare, and at

all times operate according to, a standard operating procedures manual

that describes in detail procedures for inspection, maintenance, and bag

leak detection and corrective action plans for all baghouses (fabric

filters) that are used to control process, process fugitive, or fugitive dust

emissions from any source subject to the lead emission standards in Secs.

63.543, 63.544, and 63.545, including those used to control emissions

CAM Plan for High Temperature Baghollse for PM Control

Page 1
from building ventilation. This provision shall not apply to process

fugitive sources that are controlled by wet scrubbers.

(b) The standard operating procedures (SOP) manual for baghouses

required by paragraph (a) of this section shall be submitted to the

Administrator or delegated authority for review and approval.

(c) The procedures specified in the standard operating procedures manual

for inspections and routine maintenance shall, at a minimum, include the

requirements of paragraphs (c)(1) through (c)(9) ofthis section.

(1) Daily monitoring of pressure drop across each baghouse cell.

(2) Weekly confirmation that dust is being removed from

hoppers through visual inspection, or equivalent means of ensuring the

proper functioning ofremoval mechanisms.

(3) Daily check of compressed air supply for pulse-jet

baghouses.

(4) An appropriate methodology for monitoring cleaning cycles

to ensure proper operation.

(5) Monthly check of bag cleaning mechanisms for proper

functioning through visual inspection or equivalent means.

(6) Monthly check of bag tension on reverse air and shaker-type

baghouses. Such checks are not required for shaker-type baghouses using

self-tensioning (spring loaded) devices.

(7) Quarterly confirmation of the physical integrity ofthe

baghouse through visual inspection of the baghouse interior for air leaks.

(8) Quarterly inspection offans for wear, material buildup, and

corrosion through visual inspection, vibration detectors, or equivalent

means.

(9) Except as provided in paragraphs (g) and (h) ofthis section,

continuous operation of a bag leak detection system.

(d) The procedures specified in the standard operating procedures manual

for maintenance shall, at a minimum, include a preventative maintenance

schedule that is consistent with the baghouse manufacturer's instructions

for routine and long-term maintenance.

(e) The bag leak detection system required by paragraph (c)(9) of this

section, shall meet the specification and requirements of paragraphs

(e)(1) through (e)(8) of this section.

(I) The bag leak detection systemmust be certified by the

manufacturer to be capable of detecting particulate matter emissions at

concentrations of 10 milligram per actual cubic meter (0.0044 grains per

actual cubic foot) or less.

(2) The bag leak detection system sensor must provide output of

relative particulate matter loadings.

(3) The bag leak detection system must be equipped with an

alarm system that will alarm when an increase in relative particulate

loadings is detected over a preset level.

(4) The bag leak detection system shall be installed and operated

in a manner consistent with available written guidance from the U.S.

Environmental Protection Agency or, in the absence of such written

guidance, the manufacturer's written specifications and recommendations

for installation, operation, and adjustment of the system.

(5) The initial adjustment of the system shall, at a minimum,

consist of establishing the baseline output by adjusting the sensitivity

(range) and the averaging period of the device, and establishing the alarm

set points and the alarm delay time.

CAM Plan for High Temperature Baghollse for PM Control

Page 2
C. Control Technology:

(6) Following initial adjustment, the owner or operator shall not

adjust the sensitivity or range, averaging period, alarm set points, or

alarm delay time, except as detailed in the approved SOP required under

paragraph (a) of this section. In no event shall the sensitivity be increased

by more than loo percent or decreased more than 50 percent over a 365

day period unless such adjustment follows a complete baghouse

inspection which demonstrates the baghouse is in good operating

condition.

(7) For negative pressure, induced air baghouses, and positive

pressure baghouses that are discharged to the atmosphere through a

stack, the bag leak detector must be installed downstream of the

baghouse and upstream of any wet acid gas scrubber.

(8) Where multiple detectors are required, the system's

instrumentation and alarm may be shared among detectors.

(f) The standard operating procedures manual required by paragraph (a)

of this section shall include a corrective action plan that specifies the

procedures to be followed in the case of a bag leak detection system

alarm. The corrective action plan shall include, at a minimum, the

procedures used to determine and record the time and cause of the alarm

as well as the corrective actions taken to correct the control device

malfunction or minimize emissions as specified in paragraphs (f)(1) and

(f)(2) of this section.

(I) The procedures used to determine the cause of the alarm must

be initiated within 30 minutes of the alarm.

(2) The cause of the alarm must be alleviated by taking the

necessary corrective action(s) which may include, but not be limited to,

paragraphs (f)(2)(i) through (f)(2)(vi) of this section.

(i) Inspecting the baghouse for air leaks, tom or broken

filter elements, or any other malfunction that may cause an

increase in emissions.

(ii) Sealing off defective bags or filter media.

(iii) Replacing defective bags or filter media, or

otherwise repairing the control device.

(iv) Sealing off a defective baghouse compartment.

(v) Cleaning the bag leak detection system probe, or

otherwise repairing the bag leak detection system.

(vi) Shutting down the process producing the particulate

emissions.

Fabric Filter - High Temperature (CE 004)

Fabric Filter - High Temperature (CE 005)

CAM Plan for High Temperature Baghollse for PM Control

Page 3
ll. Monitoring Approach

The key elements ofthe monitoring approach, including the indicators to be monitored, indicator ranges, and performance criteria are presented in

Table 1. The standard operating procedures (SOP) manual for the baghouses required by 40 CPR 63.548(a) contains additional information.

Table 1. Monitoring Approach

Indicator No.1 Indicator No.2 Indicator No.3

Pressure Drop InspectionIMaintenance Ba2 Break Detector

I. Measurement Pressure drop across Inspection once per "major Device detects bag breaks

Approach baghouse is measured with shutdown" and by continually recording

a pressure gauge. maintenance performed as grain loading.

needed and based upon the

manufacturer's

instructions.

II. Indicator Range An excursion is dermed as N/A An excursion is defined as

greater than 10 inches or the indication of a bag

less than 1.0 inch of water break by the device. The

column, unless a new bag leak detection system

range of values is set by a must be certified by the

performance test. manufacturer to detect.pM

concentrations of 0.0044

gr/acf or less and provide

output ofrelative PM

loadings.

Corrective Action Each excursion triggers an N/A Each excur&ion triggers an

assessment of the problem. alarm which triggers an

corrective action, and a assessment ofthe problem,

reporting requirement. corrective action, and a

reportinj?; requirement.

CAM Plan for High Temperature Baghouse for PM Control

Page 4
Indicator No.1 Indicator No.2 Indicator No.3

Pressure Drop InspectionlMaintenance BaS! Break Detector

III. Performance Criteria

A. Data Pressure drop is read while Inspections are performed The device operates while

Representativeness the ba~house is operating. at the baghouse. the ba~house is operatin~.

B. Verification of N/A (1) Weekly confirmatiori- N/A

Operational Status of dust removal from

hoppers

(2) Check bag shake cycles

weekly

(3) Check bag tension

monthly

(4) Visually check for bag

leaks quarterly

(5) Check fans for wear,

buildup and corrosion

quarterly

C. QA/QC Practices The pressure gauge is Qualified personnel The bag break detector is

and Criteria calibrated monthly. perform inspection calibrated based on the

manufacturer's

recommendation and the

SOP manual.

D. Monitoring Daily. Every "major shutdown" The device monitors on an

Frequency or according to ongoing basis.

manufacturer's

recommended schedule.

Data Collection Pressure drop is recorded Records are maintained to Records are maintained to

Procedures daily in a log. document inspections and document inspections and

any required maintenance. any required maintenance.

Averaging period None N/A N/A

CAM Plan for High Temperature Baghouse for PM Control

Page 5
Indicator No.1 Indicator No.2 Indicator No~ 3

Pressure Drop InspectionlMaintenance Ba2 Break Detector

E. Record Keeping Maintain for a period of 5 Maintain for a period of 5 Maintain for a period of 5

years records of pressure years records of years records of

drop and corrective actions inspections and required identification of the date

taken in response to maintenance. ~- and time of all bag leak

excursions. detection system alarms,

their cause, and an

explanation of the

corrective actions taken.

F. Reporting Number, duration, and N/A Number, duration, aDd

cause of any excursion and cause of any excursion and

the corrective action taken. the corrective action taken.

Frequency Semiannually N/A Semiannually

CAM Plan for High Temperature Baghouse for PM Control

Page 6
III. Monitoring Approach Justification

(a) Background

The pollutant-specific emissions units are the West Reverbatory Furnace, Scrap Dryer, East

Reverbatory Furnace, and the Blast Furnace for particulate matter and opacity. Emissions from

each of these units are vented to one of two baghouses operated in parallel. The SOP manual for

the baghouses contains additional information. The Afterburner (CE 007) that controls total

hydrocarbon emissions from the East Reverhatory Furnace and the Blast Furnace is not

considered a PM or opacity control technology for the purposes of this analysis.

(b) Rationale for Selection of Performance Indicators

Monitoring pressure drop provides a means of detecting a change in operation that could lead to

an increase in emissions. A high pressure drop can indicate that the cleaning cycle is not frequent

enough, cleani~g equipment is damaged, or the bags are blinded. A low pressure drop can

indicate broken or loo&e bags.

Baghouse inspection and maintenance provides assurance that the baghouse in good repair and

operating properly. Proper operation of the bag shaker facilitates gas flow through the baghouse

and the removal of particulate matter, and also helps prevent blinding ofthe filter bags. Other

items critical for baghouse performance, such as bag integrity, will also be inspected. Inspections

and routine maintenance will include the items required by 40 CFR 63.548(c).

Monitoring of the bag break detector system is another way to indicate performance of the

baghouse. Low readings indicate that the bags are working correctly.

(c) Rationale for Selection of Indicator Ranges

The indicator range for the baghouse pressure drop is between 1.0 and 10 inches of water column.

This range was selected based on the current Title V permit requirements. A pressure drop below

1.0 inches may indicate that a bag has a hole or has dropped off its cage. A pressure drop over 10

inches typically indicates a plugged baghouse and that the system is not working properly.

The indicator range for the broken bag detectors is based upon continuous detection of grain

loading as required by the current Title V permit. The bag leak detection system must be certified

by the manufacturer to detect PM concentrations of 0.0044 gr/acf or less.

Gopher Resource Corporation has demonstrated compliance with the applicable PM emission

limit of 0.022 gr/dscf during multiple performance tests. Particulate emissions were measured at

0.0023 gr/dscf and 0.0041 gr/dscf during performance tests conducted on October 17-18, 2001,

and November 16-17, 2000, respectively.

CAM Plan for High Temperature Baghollse for PM Control

Page 7
Attachment 2 

Alternative Monitoring Memos 
•. ·PHlB n~HUa~f CORPORATION

June 10, 1998

Mr. George T. Czerniak

Chief

Air Enforcement and Compliance Branch

United States Envir,!~entalProtection Agency, Region 5

77 West Jackson Boulevard

Chicago, Dlinois 60604-3507

\

1

}

Re: Request for Alternative Monitoring Method and Request for Extension to Deadlines for

Compliance Testing and Compliance Notification.

Dear Mr. Czermiak:

In accordance with Title 40 ofthe Code ofFederal Regulations (CFR), Section 63.8 (t),

Gopher Resource Corporation (Gopher) is requesting use ofan alternative monitoring method to

demonstrate continuous compliance with the total hydrocarbon (THC) emission standards in 40

CFR Section 63.543 (c). Gopher is requesting a 45·day extension for item 3f(to begin

performance testing and item 3h (notify EPA of compliance status) identified in your letter to

Stephen Yates ofGopher dated May 4, 1998. The requested extension is necessary for us to

successfully implement the alterative monitoring method. We are requesting no other extensions

to the other items in the. compliance schedule.

Gopher Resource is currently operating an afterburner system that blends the gas streams from

the east reverberatory furnace and blast furnace. Gopher is seeking to monitor natural gas usage

(heat input) for the east reverberatory furnace as an acceptable parameter to demonstrate

continuous compliance with the THC emission standards. This monitoring method would be

done in place ofmonitoring afterburner temperature as specified in 40 CFRPart 63.548 (D(l).

Temperature monitoring is not the best approach for demonstrating compliance with the THC

standard for our afterburner system for the following reasons:

• The temperature ofthe east reverberatorylblast gas mixture in the afterburner has been

operating at greater than 1900 OP. This temperature exceeds the typical operating temperature

for most afterburner systems in the secondary lead industry by approximately 500 OP.

Gophers' afterburner runs at a higher temperature because ofthe greater mass flow and

temperature afthe reverberatory furnace eXhaust gas relative to the blast furnace exhaust gas.

• Gopher cannot maintain a continuously operating temperature monitoring device in the

afterburner exhaust stream. The thermocouple wells keep burning out due to the very high

operating temperature of greater than 1900 "F.

"RI; c::nlln-l I·HAIV fAQ • ~Ar.:A" UI~I.,~"nT' 0:0:.'\1 ~ : ~'7 4';<l.1~ln • FAX 812.45'4.7926. BOO.354.7451
• Gopher has tried many types ofthell11ocouples and thermocouple wells (stainless steel,

ceramic) with no success. Because ofhigh heat and corrosion conditions in the afterburner,

the temperature probes keep burning out in less than two days.

• We are concerned that we will not be able to demonstrate continuous compliance with 40

CFR Part 63, Subpart A and 40 CFR Part 63 SubpartX to maintain and continuously operate

a temperature monitoring system because the temperature probes keep burning.out.·

. .

The alternative approach would consist ofcontinuous monitoring of natural gas ~el (east

reverberatory furnace) with a calibrated orifice and Rosemount differential pressure trarismitter

Model 1lSDP3E12B2 (or equivalent) flow measuring deviCe. Monitoring fuel tlowrate would be

an indicative measure ofthe rate ofheat added to the afterburner system which can be related to

temperature ofthe gas mixture. Compliance with the THe standard would be'demonstrated by

operating reverberatory furnace above a minimum natural. gas usage rate. Gopher believes that .

this is a more technically feasible and cost-effective method than ~emperature monitoring for our.

application. .

Attached is our test plan for demonstrating compliance with the emission standards in 40 CFR

Part 63, Subpart X and the alternative monitoring method. The test plan includes a description of

the proposed alternative monitoring system and a performance test plan as required in 40 CFR..

Part 63.8· (e)(3).

We look forward to your review and approval ofthe requests in this letter. Please notify us of

your intentions at your earliest convenience. Thank you.

Respectively submitted,

~~'ttd:- Environmental, Health aild Safety Manager

Gopher.Resource Corporation

3385 South Highway 149

Eagan, Minnesota 55121

c: Todd Biewen, MPCA

Jim Frieclman, Rust Environment and Infrastructure

Enclosure

C;\OOPHE]t\!ES1l"LN\ALT·MON.LTR

TOTAL P.07
DEC-04-2001 14:33

UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

REGIONS

77 WEST JACKSON BOULEVARD

CHICAGO, IL 60604-3590

JUL 2 9 )~~

CERTIFIED MAIL

RETURN RECEIPT REQUESTED

Stephen Yates

Environmental, Health & Safety Manager

Gopher Resource Corporation

3385 Highway 149 South

Eagan, Minnesota 55121'

REP!-YTO THE ATIENTION OF:

(AE-17J)

Re: Alternative Monitoring and

Compliance Extension Request

Secondary Lead Smelter

Dear Mr. Yates:

Gopher Resource Corporation (Gopher Resource) owns and operates a

secondary lead smelter in Eagan, Minnesota. This facility is

subject to the National Emission Standards for Hazardous Air

Pollutants from Secondary Lead Smelting, 40 C.F.R. part 63,

subpart X (subpart X) . This standard required compliance with

total hydrocarbon '(THC) and lead standards by December 23, 1997.

On sep~emi:ier 12, 1996 I the United States Environmental Protection

Agency (U;~S . EPA) granted Gopher Resource a compliance extension

for theTHC standards of subpart X until June 23, 1998. On

August 22" 1997, the U. S. EPA granted Gopher Resource a complian~~~xtension for the lead standards. On May 4, 1998, the

U. S. EP~';1:u,i.~her extended the latter extension until August 31,

1998. ;:' ,< ;,

Oil June: 10-,~'''i998"Gopher Resource sent the U. S. EPA a letter

requesting' ,a THC alternative monitoring method. Gopher Resource

ellso reques~ed ao::,'extension to the deadlines for compliance

'testing and :no,tification in the above compliance extensions.

Aperformanc~~,;t,estingrequirement in 40 C.F.R. § 63.7 (a) (2) (v), of

the part 63 '<TEimeral Provisions gives a source 180 days after a .

. compli~~ce ~xtem~i9n ends to do performance testing. This

provisi,on r~irei:LGepher Resource to test for "THC by

December 20..r:~:;1Q:9.'8., and for lead by Febr-qary 27" 1999. In its

June 10, '19:9E! 11"j;L.e;tte.!, Gopher Resoure,e st~c.i,ted,that' these tests

willbegiritne week.of September 7 I 1998,' Th~,:r:efqre, the

U. S,. EPA sees no· need' 'to" further extend the;-a,bQve,cornpliance

Aeq,c:ledlRocyc:leblo • Printed with Ve~table Oil Bued Inlce on 500/. Recycled Paper (20% PDStconsumer)
2

extensions. As required by 40 C.F.R. §§ 63.7(g) (1) and

63.8(e) (5) (i), Gopher Resource must submit the results of the

performance test and the monitoring performance evaluation within

60 days of completing the test.

Subpart X requires blast furnaces and collocated blast and

reverberatory furnaces to demonstrate continuous compliance with

the THC emission standards. Subject sources can con i ously

monitor the temperature of the afterburner or he f mace exhaust

streams as described in 40 C.F.R. § 63.548(j) (1). Or, they can

continuously monitor the THC emissions as described in 40 C.F.R.

§ 63.548(j) (2). U.S. EPA understands that other secondary lead

smelters have found THC emission monitoring to be unstable and

unreliable, and that all smelters monitor temperature.

At Gopher Resource, 'the afterburner for the collocated blast and

reverberatory furnaces operates at temperatures exceeding

1900 of. This is about 500 of hotter than the typical

afterburner operating temperatures in the secondary lead

industry. The high temperatures and corrosive conditions have

caused the thermocouple wells to burn out in less than 2 days.

Gopher Resource proposes an alternat've mon tor'ng m t:hod Under

t is method, Gop.er Raso rce w'll outor he na u al gas O~

9roP e .s.ge for t e' aat rever er tory fur ace. he gas heat

'nput co troIs t.e af er rne ope a l.ng r:embera ur Gopher.

:eso rce b rna propane only occasio ally during the winter during

atural gas curtailment.

1e U.S. EPA has reviewed this request and finds it reasonable.

tderthe authority of 40 C.F.R. § 63.8{f), the U.S. EPA approves

e alternative monitoring method under the following conditions:

Cal ibra tion of Con tinuous Moni toring Devi ce. ,Gopher Re source

tIl:

1. Calibrate the monitoring instrument ~pressure

transmitter and orifice plate) before the initial compliance

test.

2. Service and calibrate the monitoring instrument at

1-year intervals.

3. Keep records of all calibrations for at least 5 years.

?quirements During THC Compliance Demonstration. Gopher

'ce shall:

Record east reverberatory furnace natural gas usage at

i-minute intervals simultaneously with temperature

asurements, for the duration of the THC compliance test.

~.

:':1
3

2. Measure afterburner temperature at lS-minute intervals

with a hand-held temperature monitoring device calibrated to

a reference standard, for the duration of the THe compliance

test.

3. Calculate the arithmetic average of the natural gas

usage and the afterburner temperature from the lS-minute

readings. The compliance demonstration must follow the test

protocol, and must show compliance with the 20 ppm THC

standard when the blast furnace and the east reverberatory

furnace both operate.

C. Optional Requirements During Propane Usage. Propane has a

higher heating value than natural gas. Gopher Resource may

choose to:

1. Record east reverberatory furnace propane usage at

lS-minute intervals simultaneously with temperature

measurements, for at least 3 hours.

2. Measure afterburner temperature at lS-minute intervals

with a hand-held temperature monitoring device calibrated to

a reference standard, for at least 3 hours.

3. Calculate the arithmetic average of the propane usage

and the afterburner temperature from the lS-minute ~eadings

The average afterburner temperature must be at or above the

arithmetic average temperature established in B.3.

D. Continuing Compliance Demonstration. Whenever the blast

furnace and the east reverberatory furnace both operate, Gopher

Resource shall:

1. Show compliance with the THC standard of 20 ppm by

maintaining the natural gas usage at or above the arithmetic

average established in condition B.3 above.

2. Show compliance with the THCstandard of 20 ppm by

maintaining the propane usage at or above the arithmetic

average established in condition B.3 or C.3 above.

3. Continuously record the natural gas or propane usage.

4. Report semiannually whether any 3-hour average natural

gas usage is less than the arithmetic average established in

condition B.3 above. Report semiannually whether any3-hour

average propane usage is less than the arithmetic average

established in condition B.3 or C.3 above. Once any 3-hour

usage is less than the established average, report quarterly

until a requ~st to reduce reporting frequency is approved.
14:36 GOPHER RESOURCE

4

651 454

Until the U.S. EPA delegates the authority for subpart X to the

Minnesota Pollution Control Agency (MPCA), Gopher Resource shall

submit all reports required by this approval letter and by

subpart X to:

William MacDowell, Chief

Air Enforcement and Compliance Assurance Section (MN/OH)

U.S. EPA, Region 5 (AE-17J)

77 West Jackson Boulevard

Chicago; Illi~ois 60604-3590

With a copy to:

Todd J. Biewen, Supervisor

Environmental Indicators Unit

Outcomes Division

Minnesota'Pollution Control Agency

520 Lafayette Road

St. Paul, Minnesota 55155-4194

Once the U.S. EPA delegates subpart X to the MPCA, Gopher

Resource need only submit reports to the MPCA.

If you have any questions on this matter, please contact Bruce

Varner, of my staff, at (312) 886-6793.

Sincerely,

Air E

cc:

j

Chief:/'

comp~ ce Assurance Branch

James Friedman, Senior Engineer

Rust Environment & Infrastructure

Todd J. Biewen, Supervisor

Environmental Indicators Unit

Outcomes Division

Minnesota Pollution Control Agency
Attachment 3 

Calculations and PTE Summary 
5 February, 2010 15:39

Show: Active and Pending Records

FACILITY DESCRIPTION: Potential-to-emit (by pollutant)

Retired

By

(Action)

Added

By

(Action)

Pollutant Item Actual

Emissions

(tons per yr)

Limited

Potential

(tons per yr)

Unrestricted

Potential

(tons per yr)

Hourly

Potential

(lbs per hr)

AQD Facility ID: 03700016

Facility Name: Gopher Resource LLC

MINNESOTA POLLUTION CONTROL AGENCY

AIR QUALITY

520 LAFAYETTE ROAD

ST. PAUL, MN 55155-4194

Acetaldehyde 

EU 009 PER 001 2.200E-01 9.500E-01 9.500E-01

EU 009 PER 003 0.000E+00 9.500E-01 0.000E+00

EU 023 PER 003 1.480E-02 3.700E-03 3.700E-03

EU 024 PER 003 1.480E-02 3.700E-03 3.700E-03

SV 003 PER 003 3.020E-02 1.320E-01

SV 008 PER 003 7.200E-03 3.150E-02

Totals 9.574E-01 1.709E-01 0.000E+00

Acetophenone 

EU 009 PER 001 4.000E-02 1.900E-01 1.900E-01

EU 009 PER 003 0.000E+00 1.900E-01 0.000E+00

SV 003 PER 003 6.050E-03 2.650E-02

SV 008 PER 003 1.440E-03 6.310E-03

Totals 1.900E-01 3.281E-02 0.000E+00

Acrolein 

EU 009 PER 001 8.000E-02 3.500E-01 3.500E-01

EU 009 PER 003 0.000E+00 3.550E-01 0.000E+00

EU 023 PER 003 1.785E-03 4.460E-04 4.460E-04

EU 024 PER 003 1.785E-03 4.460E-04 4.460E-04

SV 003 PER 003 1.130E-02 4.970E-02

SV 008 PER 003 2.700E-03 1.180E-02

Totals 3.559E-01 6.239E-02 0.000E+00

Benzene 

EU 004 PER 003 9.150E-05

EU 006 PER 003 9.150E-05

EU 007 PER 003 2.740E-04

EU 009 PER 001 9.900E-01 4.330E+00 4.330E+00

EU 009 PER 003 0.000E+00 4.340E+00 0.000E+00

EU 023 PER 003 1.800E-02 4.500E-03 4.500E-03

EU 024 PER 003 1.801E-02 4.500E-03 4.500E-03

SV 002 PER 003 6.600E-02 2.890E-01

SV 003 PER 003 1.400E-01 6.100E-01

SV 008 PER 003 3.000E-02 1.400E-01

SV 009 PER 003 1.040E-05 4.570E-05 4.570E-05

SV 010 PER 003 1.040E-05 4.570E-05 4.570E-05

SV 011 PER 003 1.040E-05 4.570E-05 4.570E-05

Page 1 of 22
5 February, 2010 15:39

Show: Active and Pending Records

FACILITY DESCRIPTION: Potential-to-emit (by pollutant)

Retired

By

(Action)

Added

By

(Action)

Pollutant Item Actual

Emissions

(tons per yr)

Limited

Potential

(tons per yr)

Unrestricted

Potential

(tons per yr)

Hourly

Potential

(lbs per hr)

AQD Facility ID: 03700016

Facility Name: Gopher Resource LLC

MINNESOTA POLLUTION CONTROL AGENCY

AIR QUALITY

520 LAFAYETTE ROAD

ST. PAUL, MN 55155-4194

Benzene 

SV 012 PER 003 1.040E-05 4.570E-05 4.570E-05

SV 013 PER 003 1.040E-05 4.570E-05 4.570E-05

SV 014 PER 003 1.040E-05 4.570E-05 4.570E-05

SV 015 PER 003 1.040E-05 4.570E-05 4.570E-05

SV 016 PER 003 1.040E-05 4.570E-05 4.570E-05

SV 017 PER 003 1.040E-05 4.570E-05 4.570E-05

SV 018 PER 003 1.040E-05 4.570E-05 4.570E-05

Totals 4.350E+00 1.048E+00 0.000E+00

Arsenic compounds 

EU 004 PER 001 6.200E-02 2.700E-01 2.700E-01

EU 004 PER 003 0.000E+00 9.540E-02 0.000E+00

EU 006 PER 003 8.590E-06

EU 007 PER 001 1.875E-01 8.200E-01 8.200E-01

EU 007 PER 003 0.000E+00 1.570E-02 0.000E+00

EU 009 PER 001 6.000E-02 2.800E-01 2.800E-01

EU 009 PER 003 0.000E+00 5.716E+01 0.000E+00 0.000E+00

SV 002 PER 003 1.830E-01 8.020E-01

SV 003 PER 003 2.470E+00 1.082E+01

SV 008 PER 003 9.000E-02 4.000E-01

SV 009 PER 003 9.800E-07 4.290E-06 4.290E-06

SV 010 PER 003 9.800E-07 4.290E-06 4.290E-06

SV 011 PER 003 9.800E-07 4.290E-06 4.290E-06

SV 012 PER 003 9.800E-07 4.290E-06 4.290E-06

SV 013 PER 003 9.800E-07 4.290E-06 4.290E-06

SV 014 PER 003 9.800E-07 4.290E-06 4.290E-06

SV 015 PER 003 9.800E-07 4.290E-06 4.290E-06

SV 016 PER 003 9.800E-07 4.290E-06 4.290E-06

SV 017 PER 003 9.800E-07 4.290E-06 4.290E-06

SV 018 PER 003 9.800E-07 4.290E-06 4.290E-06

Totals 5.727E+01 1.202E+01 0.000E+00

Biphenyl 

EU 009 PER 003 6.310E-01

SV 003 PER 003 2.020E-02 8.830E-02

SV 008 PER 003 4.800E-03 2.100E-02

Totals 6.310E-01 1.093E-01 0.000E+00

Page 2 of 22
5 February, 2010 15:39

Show: Active and Pending Records

FACILITY DESCRIPTION: Potential-to-emit (by pollutant)

Retired

By

(Action)

Added

By

(Action)

Pollutant Item Actual

Emissions

(tons per yr)

Limited

Potential

(tons per yr)

Unrestricted

Potential

(tons per yr)

Hourly

Potential

(lbs per hr)

AQD Facility ID: 03700016

Facility Name: Gopher Resource LLC

MINNESOTA POLLUTION CONTROL AGENCY

AIR QUALITY

520 LAFAYETTE ROAD

ST. PAUL, MN 55155-4194

Bis(2-ethylhexyl) phthalate 

EU 009 PER 001 9.400E-02 4.100E-01 4.100E-01

EU 009 PER 003 0.000E+00 4.140E-01 0.000E+00

SV 003 PER 003 1.320E-02 5.790E-02

SV 008 PER 003 3.150E-03 1.380E-02

Totals 4.140E-01 7.170E-02 0.000E+00

1,3-Butadiene 

EU 009 PER 001 3.550E+00 1.557E+01 1.557E+01

EU 009 PER 003 0.000E+00 1.557E+01 0.000E+00

EU 023 PER 003 7.550E-04 1.890E-04 1.890E-04

EU 024 PER 003 7.550E-04 1.890E-04 1.890E-04

SV 003 PER 003 4.980E-01 2.180E+00

SV 008 PER 003 1.190E-01 5.190E-01

Totals 1.557E+01 2.699E+00 0.000E+00

Beryllium 

EU 004 PER 003 5.150E-07

EU 006 PER 003 5.150E-07

EU 007 PER 003 1.550E-06

EU 009 PER 003 4.336E+01

SV 002 PER 003 1.390E-01 6.070E-01

SV 003 PER 003 1.870E+00 8.200E+00

SV 008 PER 003 7.000E-02 3.000E-01

SV 009 PER 003 5.880E-08 2.580E-07 2.580E-07

SV 010 PER 003 5.880E-08 2.580E-07 2.580E-07

SV 011 PER 003 5.880E-08 2.580E-07 2.580E-07

SV 012 PER 003 5.880E-08 2.580E-07 2.580E-07

SV 013 PER 003 5.880E-08 2.580E-07 2.580E-07

SV 014 PER 003 5.880E-08 2.580E-07 2.580E-07

SV 015 PER 003 5.880E-08 2.580E-07 2.580E-07

SV 016 PER 003 5.880E-08 2.580E-07 2.580E-07

SV 017 PER 003 5.880E-08 2.580E-07 2.580E-07

SV 018 PER 003 5.880E-08 2.580E-07 2.580E-07

Totals 4.336E+01 9.107E+00 0.000E+00

Carbon disulfide 

EU 009 PER 001 1.220E+00 5.320E+00 5.320E+00

EU 009 PER 003 0.000E+00 5.320E+00 0.000E+00

Page 3 of 22
5 February, 2010 15:39

Show: Active and Pending Records

FACILITY DESCRIPTION: Potential-to-emit (by pollutant)

Retired

By

(Action)

Added

By

(Action)

Pollutant Item Actual

Emissions

(tons per yr)

Limited

Potential

(tons per yr)

Unrestricted

Potential

(tons per yr)

Hourly

Potential

(lbs per hr)

AQD Facility ID: 03700016

Facility Name: Gopher Resource LLC

MINNESOTA POLLUTION CONTROL AGENCY

AIR QUALITY

520 LAFAYETTE ROAD

ST. PAUL, MN 55155-4194

Carbon disulfide 

SV 003 PER 003 1.700E-01 7.450E-01

SV 008 PER 003 4.050E-02 1.770E-01

Totals 5.320E+00 9.220E-01 0.000E+00

Chlorine 

EU 004 PER 001 4.100E-01 1.800E+00 1.800E+00

EU 004 PER 003 0.000E+00 1.800E+00 0.000E+00

EU 007 PER 001 1.250E+00 5.470E+00 5.470E+00

EU 007 PER 003 0.000E+00 8.760E+00 0.000E+00

EU 009 PER 001 4.500E-01 1.970E+00 1.970E+00

EU 009 PER 003 0.000E+00 1.970E+00 0.000E+00

SV 002 PER 003 4.000E-02 1.750E-01

SV 003 PER 003 2.590E+00 1.136E+01

SV 008 PER 003 1.000E-01 4.200E-01

Totals 1.253E+01 1.196E+01 0.000E+00

Chlorobenzene 

EU 009 PER 001 3.000E-02 1.400E-01 1.400E-01

EU 009 PER 003 0.000E+00 1.440E-01 0.000E+00

SV 003 PER 003 4.600E-03 2.010E-02

SV 008 PER 003 1.100E-03 4.800E-03

Totals 1.440E-01 2.490E-02 0.000E+00

Cadmium compounds 

EU 004 PER 003 6.610E-05

EU 006 PER 003 4.720E-05

EU 007 PER 003 2.340E-04

EU 009 PER 001 4.000E-02 2.000E-01 2.000E-01

EU 009 PER 003 0.000E+00 1.550E-03 0.000E+00

SV 002 PER 003 5.910E-06 2.590E-05

SV 003 PER 003 8.020E-05 3.510E-04

SV 008 PER 003 2.950E-06 1.290E-05

SV 009 PER 003 5.390E-06 2.360E-05 2.360E-05

SV 010 PER 003 5.390E-06 2.360E-05 2.360E-05

SV 011 PER 003 5.390E-06 2.360E-05 2.360E-05

SV 012 PER 003 5.390E-06 2.360E-05 2.360E-05

SV 013 PER 003 5.390E-06 2.360E-05 2.360E-05

SV 014 PER 003 5.390E-06 2.360E-05 2.360E-05

Page 4 of 22
5 February, 2010 15:39

Show: Active and Pending Records

FACILITY DESCRIPTION: Potential-to-emit (by pollutant)

Retired

By

(Action)

Added

By

(Action)

Pollutant Item Actual

Emissions

(tons per yr)

Limited

Potential

(tons per yr)

Unrestricted

Potential

(tons per yr)

Hourly

Potential

(lbs per hr)

AQD Facility ID: 03700016

Facility Name: Gopher Resource LLC

MINNESOTA POLLUTION CONTROL AGENCY

AIR QUALITY

520 LAFAYETTE ROAD

ST. PAUL, MN 55155-4194

Cadmium compounds 

SV 015 PER 003 5.390E-06 2.360E-05 2.360E-05

SV 016 PER 003 5.390E-06 2.360E-05 2.360E-05

SV 017 PER 003 5.390E-06 2.360E-05 2.360E-05

SV 018 PER 003 5.390E-06 2.360E-05 2.360E-05

Totals 2.133E-03 6.258E-04 0.000E+00

Carbon Monoxide 

EU 004 PER 003 3.610E+00

EU 006 PER 001 5.000E-01 2.200E+00 2.200E+00

EU 006 PER 003 0.000E+00 3.610E+00 0.000E+00

EU 007 PER 003 1.082E+01

EU 009 PER 001 6.210E+02 2.720E+03 2.720E+03

EU 009 PER 003 0.000E+00 3.562E+02 0.000E+00

EU 023 PER 001 4.860E+00 1.220E+00 1.220E+00

EU 023 PER 003 1.834E+01 4.580E+00 4.580E+00

EU 024 PER 001 4.860E+00 1.220E+00 1.220E+00

EU 024 PER 003 1.834E+01 4.580E+00 4.580E+00

SV 003 PER 003 1.330E+01 5.824E+01

SV 008 PER 003 2.820E+00 0.000E+00 1.235E+01

SV 009 PER 003 4.120E-01 1.800E+00 1.800E+00

SV 010 PER 003 4.120E-01 1.800E+00 1.800E+00

SV 011 PER 003 4.120E-01 1.800E+00 1.800E+00

SV 012 PER 003 4.120E-01 1.800E+00 1.800E+00

SV 013 PER 003 4.120E-01 1.800E+00 1.800E+00

SV 014 PER 003 4.120E-01 1.800E+00 1.800E+00

SV 015 PER 003 4.120E-01 1.800E+00 1.800E+00

SV 016 PER 003 4.120E-01 1.800E+00 1.800E+00

SV 017 PER 003 4.120E-01 1.800E+00 1.800E+00

SV 018 PER 003 4.120E-01 1.800E+00 1.800E+00

Totals 4.014E+02 9.775E+01 0.000E+00

Chromium compounds 

EU 004 PER 003 6.010E-05

EU 006 PER 003 6.010E-05

EU 007 PER 003 1.800E-04

EU 009 PER 001 5.000E-02 2.300E-01 2.300E-01

EU 009 PER 003 0.000E+00 3.410E-05 0.000E+00

Page 5 of 22
5 February, 2010 15:39

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FACILITY DESCRIPTION: Potential-to-emit (by pollutant)

Retired

By

(Action)

Added

By

(Action)

Pollutant Item Actual

Emissions

(tons per yr)

Limited

Potential

(tons per yr)

Unrestricted

Potential

(tons per yr)

Hourly

Potential

(lbs per hr)

AQD Facility ID: 03700016

Facility Name: Gopher Resource LLC

MINNESOTA POLLUTION CONTROL AGENCY

AIR QUALITY

520 LAFAYETTE ROAD

ST. PAUL, MN 55155-4194

Chromium compounds 

SV 002 PER 003 8.770E-07 3.840E-06

SV 003 PER 003 1.240E-05 5.440E-05

SV 008 PER 003 4.390E-07 1.920E-06

SV 009 PER 003 6.860E-06 3.010E-05 3.010E-05

SV 010 PER 003 6.860E-06 3.010E-05 3.010E-05

SV 011 PER 003 6.860E-06 3.010E-05 3.010E-05

SV 012 PER 003 6.860E-06 3.010E-05 3.010E-05

SV 013 PER 003 6.860E-06 3.010E-05 3.010E-05

SV 014 PER 003 6.860E-06 3.010E-05 3.010E-05

SV 015 PER 003 6.860E-06 3.010E-05 3.010E-05

SV 016 PER 003 6.860E-06 3.010E-05 3.010E-05

SV 017 PER 003 6.860E-06 3.010E-05 3.010E-05

SV 018 PER 003 6.860E-06 3.010E-05 3.010E-05

Totals 6.353E-04 3.612E-04 0.000E+00

Cumene 

EU 009 PER 001 4.000E-02 1.600E-01 1.600E-01

EU 009 PER 003 0.000E+00 1.580E-01 0.000E+00

SV 003 PER 003 5.040E-03 2.210E-02

SV 008 PER 003 1.200E-03 5.260E-03

Totals 1.580E-01 2.736E-02 0.000E+00

1,4-Dichlorobenzene 

EU 004 PER 003 5.150E-05

EU 006 PER 003 5.150E-05

EU 007 PER 003 1.550E-04

SV 002 PER 003 3.140E-06 1.370E-05

SV 008 PER 003 1.570E-06 6.870E-06

SV 009 PER 003 5.880E-06 2.580E-05 2.580E-05

SV 010 PER 003 5.880E-06 2.580E-05 2.580E-05

SV 011 PER 003 5.880E-06 2.580E-05 2.580E-05

SV 012 PER 003 5.880E-06 2.580E-05 2.580E-05

SV 013 PER 003 5.880E-06 2.580E-05 2.580E-05

SV 014 PER 003 5.880E-06 2.580E-05 2.580E-05

SV 015 PER 003 5.880E-06 2.580E-05 2.580E-05

SV 016 PER 003 5.880E-06 2.580E-05 2.580E-05

SV 017 PER 003 5.880E-06 2.580E-05 2.580E-05

Page 6 of 22
5 February, 2010 15:39

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FACILITY DESCRIPTION: Potential-to-emit (by pollutant)

Retired

By

(Action)

Added

By

(Action)

Pollutant Item Actual

Emissions

(tons per yr)

Limited

Potential

(tons per yr)

Unrestricted

Potential

(tons per yr)

Hourly

Potential

(lbs per hr)

AQD Facility ID: 03700016

Facility Name: Gopher Resource LLC

MINNESOTA POLLUTION CONTROL AGENCY

AIR QUALITY

520 LAFAYETTE ROAD

ST. PAUL, MN 55155-4194

1,4-Dichlorobenzene 

SV 018 PER 003 5.880E-06 2.580E-05 2.580E-05

Totals 5.160E-04 2.786E-04 0.000E+00

Ethylbenzene 

EU 009 PER 001 3.000E-01 1.320E+00 1.320E+00

EU 009 PER 003 0.000E+00 1.320E+00 0.000E+00

SV 003 PER 003 4.220E-02 1.850E-01

SV 008 PER 003 1.010E-02 4.400E-02

Totals 1.320E+00 2.290E-01 0.000E+00

Formaldehyde 

EU 004 PER 003 3.220E-03

EU 006 PER 003 3.220E-03

EU 007 PER 003 9.660E-03

EU 009 PER 001 5.000E-02 2.300E-01 2.300E-01

EU 009 PER 003 0.000E+00 2.370E-01 0.000E+00

EU 023 PER 003 2.277E-02 5.690E-03 5.690E-03

EU 024 PER 003 2.277E-02 5.694E-03 5.694E-03

SV 002 PER 003 3.800E-03 1.660E-02

SV 003 PER 003 9.300E-03 4.060E-02

SV 008 PER 003 1.900E-03 8.300E-03

SV 009 PER 003 3.680E-04 1.610E-03 1.610E-03

SV 010 PER 003 3.680E-04 1.610E-03 1.610E-03

SV 011 PER 003 3.680E-04 1.610E-03 1.610E-03

SV 012 PER 003 3.680E-04 1.610E-03 1.610E-03

SV 013 PER 003 3.680E-04 1.610E-03 1.610E-03

SV 014 PER 003 3.680E-04 1.610E-03 1.610E-03

SV 015 PER 003 3.680E-04 1.610E-03 1.610E-03

SV 016 PER 003 3.680E-04 1.610E-03 1.610E-03

SV 017 PER 003 3.680E-04 1.610E-03 1.610E-03

SV 018 PER 003 3.680E-04 1.610E-03 1.610E-03

Totals 2.806E-01 9.298E-02 0.000E+00

Hexane 

EU 004 PER 003 7.730E-02

EU 006 PER 003 7.730E-02

EU 007 PER 003 2.320E-01

EU 009 PER 001 1.300E-01 5.700E-01 5.700E-01

Page 7 of 22
5 February, 2010 15:39

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FACILITY DESCRIPTION: Potential-to-emit (by pollutant)

Retired

By

(Action)

Added

By

(Action)

Pollutant Item Actual

Emissions

(tons per yr)

Limited

Potential

(tons per yr)

Unrestricted

Potential

(tons per yr)

Hourly

Potential

(lbs per hr)

AQD Facility ID: 03700016

Facility Name: Gopher Resource LLC

MINNESOTA POLLUTION CONTROL AGENCY

AIR QUALITY

520 LAFAYETTE ROAD

ST. PAUL, MN 55155-4194

Hexane 

EU 009 PER 003 0.000E+00 5.720E-01 0.000E+00

SV 002 PER 003 1.340E-02 5.870E-02

SV 003 PER 003 6.000E-02 2.600E-01

SV 008 PER 003 6.700E-03 2.940E-02

SV 009 PER 003 8.820E-03 3.860E-02 3.860E-02

SV 010 PER 003 8.820E-03 3.860E-02 3.860E-02

SV 011 PER 003 8.820E-03 3.860E-02 3.860E-02

SV 012 PER 003 8.820E-03 3.860E-02 3.860E-02

SV 013 PER 003 8.820E-03 3.860E-02 3.860E-02

SV 014 PER 003 8.820E-03 3.860E-02 3.860E-02

SV 015 PER 003 8.820E-03 3.860E-02 3.860E-02

SV 016 PER 003 8.820E-03 3.860E-02 3.860E-02

SV 017 PER 003 8.820E-03 3.860E-02 3.860E-02

SV 018 PER 003 8.820E-03 3.860E-02 3.860E-02

Totals 1.345E+00 7.341E-01 0.000E+00

Methyl ethyl ketone (MEK) 

EU 009 PER 001 8.000E-02 3.500E-01 3.500E-01

EU 009 PER 003 0.000E+00 0.000E+00 0.000E+00

Totals 0.000E+00 0.000E+00 0.000E+00

Naphthalene 

EU 004 PER 003 2.620E-05

EU 006 PER 003 2.620E-05

EU 007 PER 003 7.860E-05

EU 009 PER 001 2.700E-01 1.200E+00 1.200E+00

EU 009 PER 003 0.000E+00 1.200E+00 0.000E+00

EU 023 PER 003 1.637E-03 4.100E-04 4.100E-04

EU 024 PER 003 1.637E-03 4.100E-04 4.100E-04

SV 002 PER 003 1.830E-02 8.020E-02

SV 003 PER 003 4.000E-02 0.000E+00 1.700E-01

SV 008 PER 003 9.150E-03 4.010E-02

SV 009 PER 003 2.990E-06 1.310E-05 1.310E-05

SV 010 PER 003 2.990E-06 1.310E-05 1.310E-05

SV 011 PER 003 2.990E-06 1.310E-05 1.310E-05

SV 012 PER 003 2.990E-06 1.310E-05 1.310E-05

SV 013 PER 003 2.990E-06 1.310E-05 1.310E-05

Page 8 of 22
5 February, 2010 15:39

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FACILITY DESCRIPTION: Potential-to-emit (by pollutant)

Retired

By

(Action)

Added

By

(Action)

Pollutant Item Actual

Emissions

(tons per yr)

Limited

Potential

(tons per yr)

Unrestricted

Potential

(tons per yr)

Hourly

Potential

(lbs per hr)

AQD Facility ID: 03700016

Facility Name: Gopher Resource LLC

MINNESOTA POLLUTION CONTROL AGENCY

AIR QUALITY

520 LAFAYETTE ROAD

ST. PAUL, MN 55155-4194

Naphthalene 

SV 014 PER 003 2.990E-06 1.310E-05 1.310E-05

SV 015 PER 003 2.990E-06 1.310E-05 1.310E-05

SV 016 PER 003 2.990E-06 1.310E-05 1.310E-05

SV 017 PER 003 2.990E-06 1.310E-05 1.310E-05

SV 018 PER 003 2.990E-06 1.310E-05 1.310E-05

Totals 1.201E+00 2.913E-01 0.000E+00

HAPs - Total 

EU 001 PER 003 0.000E+00 1.220E+00 0.000E+00

EU 002 PER 003 0.000E+00 2.490E+00 0.000E+00

EU 004 PER 003 1.170E+03

EU 006 PER 003 8.110E-02

EU 007 PER 003 5.703E+03

EU 009 PER 003 1.459E+03

EU 011 PER 003 4.380E+00

EU 012 PER 003 4.380E+00

EU 013 PER 003 4.380E+00

EU 014 PER 003 4.380E+00

EU 015 PER 003 4.380E+00

EU 016 PER 003 4.380E+00

EU 017 PER 003 4.380E+00

EU 018 PER 003 4.380E+00

EU 019 PER 003 4.380E+00

EU 020 PER 003 4.380E+00

EU 023 PER 003 7.980E-02 1.996E-02 1.996E-02

EU 024 PER 003 7.980E-02 1.996E-02 1.996E-02

SV 001 PER 003 7.800E-02 3.400E-01

SV 002 PER 003 1.810E+00 7.940E+00

SV 003 PER 003 1.042E+01 4.564E+01

SV 008 PER 003 1.650E+00 7.230E+00

SV 009 PER 003 9.260E-03 4.050E-02 4.050E-02

SV 010 PER 003 9.260E-03 4.050E-02 4.050E-02

SV 011 PER 003 9.260E-03 4.050E-02 4.050E-02

SV 012 PER 003 9.260E-03 4.050E-02 4.050E-02

SV 013 PER 003 9.260E-03 4.050E-02 4.050E-02

SV 014 PER 003 9.260E-03 4.050E-02 4.050E-02

Page 9 of 22
5 February, 2010 15:39

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FACILITY DESCRIPTION: Potential-to-emit (by pollutant)

Retired

By

(Action)

Added

By

(Action)

Pollutant Item Actual

Emissions

(tons per yr)

Limited

Potential

(tons per yr)

Unrestricted

Potential

(tons per yr)

Hourly

Potential

(lbs per hr)

AQD Facility ID: 03700016

Facility Name: Gopher Resource LLC

MINNESOTA POLLUTION CONTROL AGENCY

AIR QUALITY

520 LAFAYETTE ROAD

ST. PAUL, MN 55155-4194

HAPs - Total 

SV 015 PER 003 9.260E-03 4.050E-02 4.050E-02

SV 016 PER 003 9.260E-03 4.050E-02 4.050E-02

SV 017 PER 003 9.260E-03 4.050E-02 4.050E-02

SV 018 PER 003 9.260E-03 4.050E-02 4.050E-02

Totals 8.380E+03 6.159E+01 0.000E+00

Mercury 

EU 004 PER 003 1.120E-05

EU 006 PER 003 1.120E-05

EU 007 PER 003 3.350E-05

EU 009 PER 001 1.000E-01 4.600E-01 4.600E-01

EU 009 PER 003 0.000E+00 2.490E-04 0.000E+00

SV 002 PER 003 4.470E-06 1.960E-05

SV 003 PER 003 6.290E-05 2.760E-04

SV 008 PER 003 2.240E-06 9.800E-06

SV 009 PER 003 1.270E-06 5.580E-06 5.580E-06

SV 010 PER 003 1.270E-06 5.580E-06 5.580E-06

SV 011 PER 003 1.270E-06 5.580E-06 5.580E-06

SV 012 PER 003 1.270E-06 5.580E-06 5.580E-06

SV 013 PER 003 1.270E-06 5.580E-06 5.580E-06

SV 014 PER 003 1.270E-06 5.580E-06 5.580E-06

SV 015 PER 003 1.270E-06 5.580E-06 5.580E-06

SV 016 PER 003 1.270E-06 5.580E-06 5.580E-06

SV 017 PER 003 1.270E-06 5.580E-06 5.580E-06

SV 018 PER 003 1.270E-06 5.580E-06 5.580E-06

Totals 3.607E-04 3.612E-04 0.000E+00

Phenol 

EU 009 PER 001 1.700E-01 7.300E-01 7.300E-01

EU 009 PER 003 0.000E+00 7.290E-01 0.000E+00

SV 003 PER 003 2.330E-02 1.020E-01

SV 008 PER 003 5.550E-03 2.430E-02

Totals 7.290E-01 1.263E-01 0.000E+00

Styrene 

EU 009 PER 001 1.930E+00 8.470E+00 8.470E+00

EU 009 PER 003 0.000E+00 8.480E+00 0.000E+00

SV 003 PER 003 2.710E-01 1.190E+00

Page 10 of 22
5 February, 2010 15:39

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FACILITY DESCRIPTION: Potential-to-emit (by pollutant)

Retired

By

(Action)

Added

By

(Action)

Pollutant Item Actual

Emissions

(tons per yr)

Limited

Potential

(tons per yr)

Unrestricted

Potential

(tons per yr)

Hourly

Potential

(lbs per hr)

AQD Facility ID: 03700016

Facility Name: Gopher Resource LLC

MINNESOTA POLLUTION CONTROL AGENCY

AIR QUALITY

520 LAFAYETTE ROAD

ST. PAUL, MN 55155-4194

Styrene 

SV 008 PER 003 6.450E-02 2.830E-01

Totals 8.480E+00 1.473E+00 0.000E+00

Toluene 

EU 004 PER 003 1.460E-04

EU 006 PER 003 1.460E-04

EU 007 PER 003 4.380E-04

EU 009 PER 001 9.900E-01 4.330E+00 4.330E+00

EU 009 PER 003 0.000E+00 4.340E+00 0.000E+00

EU 023 PER 003 7.890E-03 1.970E-03 1.970E-03

EU 024 PER 003 7.890E-03 1.973E-03 1.973E-03

SV 002 PER 003 6.600E-02 2.890E-01

SV 003 PER 003 1.400E-01 6.100E-01

SV 008 PER 003 3.300E-02 1.450E-01

SV 009 PER 003 1.670E-05 7.300E-05 7.300E-05

SV 010 PER 003 1.670E-05 7.300E-05 7.300E-05

SV 011 PER 003 1.670E-05 7.300E-05 7.300E-05

SV 012 PER 003 1.670E-05 7.300E-05 7.300E-05

SV 013 PER 003 1.670E-05 7.300E-05 7.300E-05

SV 014 PER 003 1.670E-05 7.300E-05 7.300E-05

SV 015 PER 003 1.670E-05 7.300E-05 7.300E-05

SV 016 PER 003 1.670E-05 7.300E-05 7.300E-05

SV 017 PER 003 1.670E-05 7.300E-05 7.300E-05

SV 018 PER 003 1.670E-05 7.300E-05 7.300E-05

Totals 4.345E+00 1.049E+00 0.000E+00

Xylenes (mixed isomers) 

EU 009 PER 001 2.250E-01 9.900E-01 9.900E-01

EU 009 PER 003 0.000E+00 9.860E-01 0.000E+00

EU 023 PER 003 5.500E-03 1.375E-03 1.375E-03

EU 024 PER 003 5.500E-03 1.375E-03 1.375E-03

SV 003 PER 003 3.150E-02 1.380E-01

SV 008 PER 003 7.500E-03 3.290E-02

Totals 9.888E-01 1.737E-01 0.000E+00

Manganese compounds 

EU 004 PER 003 1.630E-05

EU 006 PER 003 1.630E-05

Page 11 of 22
5 February, 2010 15:39

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FACILITY DESCRIPTION: Potential-to-emit (by pollutant)

Retired

By

(Action)

Added

By

(Action)

Pollutant Item Actual

Emissions

(tons per yr)

Limited

Potential

(tons per yr)

Unrestricted

Potential

(tons per yr)

Hourly

Potential

(lbs per hr)

AQD Facility ID: 03700016

Facility Name: Gopher Resource LLC

MINNESOTA POLLUTION CONTROL AGENCY

AIR QUALITY

520 LAFAYETTE ROAD

ST. PAUL, MN 55155-4194

Manganese compounds 

EU 007 PER 003 4.900E-05

SV 002 PER 003 2.090E-07 9.140E-07

SV 003 PER 003 2.970E-06 1.300E-05

SV 008 PER 003 1.040E-07 4.570E-07

SV 009 PER 003 1.860E-06 8.160E-06 8.160E-06

SV 010 PER 003 1.860E-06 8.160E-06 8.160E-06

SV 011 PER 003 1.860E-06 8.160E-06 8.160E-06

SV 012 PER 003 1.860E-06 8.160E-06 8.160E-06

SV 013 PER 003 1.860E-06 8.160E-06 8.160E-06

SV 014 PER 003 1.860E-06 8.160E-06 8.160E-06

SV 015 PER 003 1.860E-06 8.160E-06 8.160E-06

SV 016 PER 003 1.860E-06 8.160E-06 8.160E-06

SV 017 PER 003 1.860E-06 8.160E-06 8.160E-06

SV 018 PER 003 1.860E-06 8.160E-06 8.160E-06

Totals 1.632E-04 9.597E-05 0.000E+00

Lead Compounds 

EU 001 PER 003 0.000E+00 1.220E+00 0.000E+00

EU 002 PER 003 0.000E+00 2.490E+00 0.000E+00

EU 004 PER 003 1.167E+03

EU 006 PER 003 2.150E-05

EU 007 PER 003 5.694E+03

EU 009 PER 003 1.281E+03

EU 011 PER 003 4.380E+00

EU 012 PER 003 4.380E+00

EU 013 PER 003 4.380E+00

EU 014 PER 003 4.380E+00

EU 015 PER 003 4.380E+00

EU 016 PER 003 4.380E+00

EU 017 PER 003 4.380E+00

EU 018 PER 003 4.380E+00

EU 019 PER 003 4.380E+00

EU 020 PER 003 4.380E+00

SV 001 PER 001 6.430E-01 2.800E+00 4.900E-01

SV 001 PER 003 7.800E-02 0.000E+00 3.400E-01

SV 002 PER 001 3.557E+00 1.558E+01 5.422E+00

Page 12 of 22
5 February, 2010 15:39

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FACILITY DESCRIPTION: Potential-to-emit (by pollutant)

Retired

By

(Action)

Added

By

(Action)

Pollutant Item Actual

Emissions

(tons per yr)

Limited

Potential

(tons per yr)

Unrestricted

Potential

(tons per yr)

Hourly

Potential

(lbs per hr)

AQD Facility ID: 03700016

Facility Name: Gopher Resource LLC

MINNESOTA POLLUTION CONTROL AGENCY

AIR QUALITY

520 LAFAYETTE ROAD

ST. PAUL, MN 55155-4194

Lead Compounds 

SV 002 PER 003 1.200E+00 0.000E+00 5.250E+00

SV 003 PER 001 3.121E+00 1.367E+01 3.885E+00

SV 003 PER 003 7.100E-01 0.000E+00 3.110E+00

SV 008 PER 003 9.700E-01 4.250E+00

Totals 8.190E+03 1.295E+01 0.000E+00

Methyl chloride (chloromethane

EU 009 PER 001 9.000E-01 3.940E+00 3.940E+00

EU 009 PER 003 0.000E+00 0.000E+00 0.000E+00

Totals 0.000E+00 0.000E+00 0.000E+00

Methylene chloride (dichlorome

EU 009 PER 003 3.940E+00

SV 003 PER 003 1.260E-01 5.520E-01

SV 008 PER 003 3.000E-02 1.310E-01

Totals 3.940E+00 6.830E-01 0.000E+00

Total Polycyclic aromatic hydr

EU 023 PER 003 6.679E-03 1.670E-03 1.670E-03

EU 024 PER 003 6.679E-03 1.670E-03 1.670E-03

Totals 3.340E-03 3.340E-03 0.000E+00

Nickel compounds 

EU 004 PER 003 9.020E-05

EU 006 PER 003 9.020E-05

EU 007 PER 003 2.710E-04

EU 009 PER 001 2.500E-01 1.110E+00 1.110E+00

EU 009 PER 003 0.000E+00 5.350E-04 0.000E+00

SV 002 PER 003 2.860E-06 1.250E-05

SV 003 PER 003 3.950E-05 1.730E-04

SV 008 PER 003 1.430E-06 6.270E-06

SV 009 PER 003 1.030E-05 4.510E-05 4.510E-05

SV 010 PER 003 1.030E-05 4.510E-05 4.510E-05

SV 011 PER 003 1.030E-05 4.510E-05 4.510E-05

SV 012 PER 003 1.030E-05 4.510E-05 4.510E-05

SV 013 PER 003 1.030E-05 4.510E-05 4.510E-05

SV 014 PER 003 1.030E-05 4.510E-05 4.510E-05

SV 015 PER 003 1.030E-05 4.510E-05 4.510E-05

SV 016 PER 003 1.030E-05 4.510E-05 4.510E-05

SV 017 PER 003 1.030E-05 4.510E-05 4.510E-05

Page 13 of 22
5 February, 2010 15:39

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FACILITY DESCRIPTION: Potential-to-emit (by pollutant)

Retired

By

(Action)

Added

By

(Action)

Pollutant Item Actual

Emissions

(tons per yr)

Limited

Potential

(tons per yr)

Unrestricted

Potential

(tons per yr)

Hourly

Potential

(lbs per hr)

AQD Facility ID: 03700016

Facility Name: Gopher Resource LLC

MINNESOTA POLLUTION CONTROL AGENCY

AIR QUALITY

520 LAFAYETTE ROAD

ST. PAUL, MN 55155-4194

Nickel compounds 

SV 018 PER 003 1.030E-05 4.510E-05 4.510E-05

Totals 1.437E-03 6.428E-04 0.000E+00

Nitrogen Oxides 

EU 004 PER 003 9.680E+00

EU 006 PER 001 2.000E+00 8.800E+00 8.800E+00

EU 006 PER 003 0.000E+00 4.290E+00 0.000E+00

EU 007 PER 001 3.750E+00 1.640E+01 1.640E+01

EU 007 PER 003 0.000E+00 3.916E+01 0.000E+00

EU 009 PER 001 7.000E+00 3.070E+01 3.070E+01

EU 009 PER 003 0.000E+00 5.164E+01 0.000E+00

EU 023 PER 001 6.702E+01 1.680E+01 1.680E+01

EU 023 PER 003 8.511E+01 2.128E+01 2.128E+01

EU 024 PER 001 6.702E+01 1.680E+01 1.680E+01

EU 024 PER 003 8.511E+01 2.128E+01 2.128E+01

SV 003 PER 001 1.400E+01 6.130E+01 6.130E+01

SV 003 PER 003 2.163E+01 0.000E+00 9.473E+01

SV 008 PER 003 7.600E-01 3.350E+00

SV 009 PER 003 4.900E-01 2.150E+00 2.150E+00

SV 010 PER 003 4.900E-01 2.150E+00 2.150E+00

SV 011 PER 003 4.900E-01 2.150E+00 2.150E+00

SV 012 PER 003 4.900E-01 2.150E+00 2.150E+00

SV 013 PER 003 4.900E-01 2.150E+00 2.150E+00

SV 014 PER 003 4.900E-01 2.150E+00 2.150E+00

SV 015 PER 003 4.900E-01 2.150E+00 2.150E+00

SV 016 PER 003 4.900E-01 2.150E+00 2.150E+00

SV 017 PER 003 4.900E-01 2.150E+00 2.150E+00

SV 018 PER 003 4.900E-01 2.150E+00 2.150E+00

Totals 1.688E+02 1.621E+02 0.000E+00

PM < 2.5 micron 

EU 001 PER 003 0.000E+00 6.570E+01 0.000E+00

EU 002 PER 003 6.570E+01

EU 004 PER 003 5.570E+02

EU 006 PER 003 6.655E+01

EU 007 PER 003 2.717E+03

EU 009 PER 003 1.970E+01

Page 14 of 22
5 February, 2010 15:39

Show: Active and Pending Records

FACILITY DESCRIPTION: Potential-to-emit (by pollutant)

Retired

By

(Action)

Added

By

(Action)

Pollutant Item Actual

Emissions

(tons per yr)

Limited

Potential

(tons per yr)

Unrestricted

Potential

(tons per yr)

Hourly

Potential

(lbs per hr)

AQD Facility ID: 03700016

Facility Name: Gopher Resource LLC

MINNESOTA POLLUTION CONTROL AGENCY

AIR QUALITY

520 LAFAYETTE ROAD

ST. PAUL, MN 55155-4194

PM < 2.5 micron 

EU 011 PER 003 1.314E+01

EU 012 PER 003 1.314E+01

EU 013 PER 003 1.314E+01

EU 014 PER 003 1.314E+01

EU 015 PER 003 1.314E+01

EU 016 PER 003 1.314E+01

EU 017 PER 003 1.314E+01

EU 018 PER 003 1.314E+01

EU 019 PER 003 1.314E+01

EU 020 PER 003 1.314E+01

EU 021 PER 003 5.309E+01

EU 023 PER 003 5.980E+00 1.500E+00 1.500E+00

EU 024 PER 003 5.980E+00 1.500E+00 1.500E+00

SV 001 PER 003 1.500E+00 6.570E+00

SV 002 PER 003 5.600E-01 2.460E+00

SV 003 PER 003 1.795E+01 7.862E+01

SV 004 PER 003 1.210E-01 5.310E-01

SV 008 PER 003 4.000E-01 0.000E+00 1.750E+00

SV 009 PER 003 3.730E-02 1.630E-01 1.630E-01

SV 010 PER 003 3.730E-02 1.630E-01 1.630E-01

SV 011 PER 003 3.730E-02 1.630E-01 1.630E-01

SV 012 PER 003 3.730E-02 1.630E-01 1.630E-01

SV 013 PER 003 3.730E-02 1.630E-01 1.630E-01

SV 014 PER 003 3.730E-02 1.630E-01 1.630E-01

SV 015 PER 003 3.730E-02 1.630E-01 1.630E-01

SV 016 PER 003 3.730E-02 1.630E-01 1.630E-01

SV 017 PER 003 3.730E-02 1.630E-01 1.630E-01

SV 018 PER 003 3.730E-02 1.630E-01 1.630E-01

Totals 3.680E+03 9.456E+01 0.000E+00

Lead 

EU 001 PER 003 0.000E+00 1.220E+00 0.000E+00

EU 002 PER 003 0.000E+00 2.490E+00 0.000E+00

EU 004 PER 003 1.167E+03

EU 006 PER 003 2.150E-05

EU 007 PER 003 5.694E+03

Page 15 of 22
5 February, 2010 15:39

Show: Active and Pending Records

FACILITY DESCRIPTION: Potential-to-emit (by pollutant)

Retired

By

(Action)

Added

By

(Action)

Pollutant Item Actual

Emissions

(tons per yr)

Limited

Potential

(tons per yr)

Unrestricted

Potential

(tons per yr)

Hourly

Potential

(lbs per hr)

AQD Facility ID: 03700016

Facility Name: Gopher Resource LLC

MINNESOTA POLLUTION CONTROL AGENCY

AIR QUALITY

520 LAFAYETTE ROAD

ST. PAUL, MN 55155-4194

Lead 

EU 009 PER 003 1.281E+03

EU 011 PER 003 4.380E+00

EU 012 PER 003 4.380E+00

EU 013 PER 003 4.380E+00

EU 014 PER 003 4.380E+00

EU 015 PER 003 4.380E+00

EU 016 PER 003 4.380E+00

EU 017 PER 003 4.380E+00

EU 018 PER 003 4.380E+00

EU 019 PER 003 4.380E+00

EU 020 PER 003 4.380E+00

SV 001 PER 001 6.430E-01 2.800E+00 2.800E+00

SV 001 PER 003 7.800E-02 0.000E+00 3.400E-01

SV 002 PER 001 3.557E+00 1.558E+01 1.558E+01

SV 002 PER 003 1.200E+00 0.000E+00 5.250E+00

SV 003 PER 001 3.120E+00 1.367E+01 1.367E+01

SV 003 PER 003 7.100E-01 0.000E+00 3.110E+00

SV 008 PER 003 9.700E-01 4.250E+00

SV 009 PER 003 2.450E-06 1.070E-05 1.070E-05

SV 010 PER 003 2.450E-06 1.070E-05 1.070E-05

SV 011 PER 003 2.450E-06 1.070E-05 1.070E-05

SV 012 PER 003 2.450E-06 1.070E-05 1.070E-05

SV 013 PER 003 2.450E-06 1.070E-05 1.070E-05

SV 014 PER 003 2.450E-06 1.070E-05 1.070E-05

SV 015 PER 003 2.450E-06 1.070E-05 1.070E-05

SV 016 PER 003 2.450E-06 1.070E-05 1.070E-05

SV 017 PER 003 2.450E-06 1.070E-05 1.070E-05

SV 018 PER 003 2.450E-06 1.070E-05 1.070E-05

Totals 8.190E+03 1.295E+01 0.000E+00

PM < 10 micron 

EU 001 PER 003 0.000E+00 6.570E+01 0.000E+00

EU 002 PER 003 0.000E+00 6.570E+01 0.000E+00 0.000E+00

EU 004 PER 003 5.570E+02

EU 006 PER 003 7.128E+01

EU 007 PER 003 2.717E+03

Page 16 of 22
5 February, 2010 15:39

Show: Active and Pending Records

FACILITY DESCRIPTION: Potential-to-emit (by pollutant)

Retired

By

(Action)

Added

By

(Action)

Pollutant Item Actual

Emissions

(tons per yr)

Limited

Potential

(tons per yr)

Unrestricted

Potential

(tons per yr)

Hourly

Potential

(lbs per hr)

AQD Facility ID: 03700016

Facility Name: Gopher Resource LLC

MINNESOTA POLLUTION CONTROL AGENCY

AIR QUALITY

520 LAFAYETTE ROAD

ST. PAUL, MN 55155-4194

PM < 10 micron 

EU 009 PER 003 1.970E+01

EU 011 PER 003 1.314E+01

EU 012 PER 003 1.314E+01

EU 013 PER 003 1.314E+01

EU 014 PER 003 1.314E+01

EU 015 PER 003 1.314E+01

EU 016 PER 003 1.314E+01

EU 017 PER 003 1.314E+01

EU 018 PER 003 1.314E+01

EU 019 PER 003 1.314E+01

EU 020 PER 003 1.314E+01

EU 021 PER 003 5.309E+01

EU 023 PER 001 6.300E-01 1.600E-01 1.600E-01

EU 023 PER 003 5.980E+00 1.500E+00 1.500E+00

EU 024 PER 001 6.300E-01 1.600E-01 1.600E-01

EU 024 PER 003 5.980E+00 1.500E+00 1.500E+00

SV 001 PER 001 1.003E+01 4.390E+01 2.820E+00

SV 001 PER 003 1.500E+00 0.000E+00 6.570E+00

SV 002 PER 001 5.120E+01 2.243E+02 3.110E+01

SV 002 PER 003 5.600E-01 0.000E+00 2.460E+00

SV 003 PER 001 4.070E+01 1.783E+02 2.234E+01

SV 003 PER 003 1.795E+01 0.000E+00 7.862E+01

SV 004 PER 001 1.290E+00 5.650E+00 5.650E+00

SV 004 PER 003 1.210E-01 0.000E+00 5.310E-01

SV 008 PER 003 4.000E-01 1.750E+00

SV 009 PER 003 3.730E-02 1.630E-01 1.630E-01

SV 010 PER 003 3.730E-02 1.630E-01 1.630E-01

SV 011 PER 003 3.730E-02 1.630E-01 1.630E-01

SV 012 PER 003 3.730E-02 1.630E-01 1.630E-01

SV 013 PER 003 3.730E-02 1.630E-01 1.630E-01

SV 014 PER 003 3.730E-02 1.630E-01 1.630E-01

SV 015 PER 003 3.730E-02 1.630E-01 1.630E-01

SV 016 PER 003 3.730E-02 1.630E-01 1.630E-01

SV 017 PER 003 3.730E-02 1.630E-01 1.630E-01

Page 17 of 22
5 February, 2010 15:39

Show: Active and Pending Records

FACILITY DESCRIPTION: Potential-to-emit (by pollutant)

Retired

By

(Action)

Added

By

(Action)

Pollutant Item Actual

Emissions

(tons per yr)

Limited

Potential

(tons per yr)

Unrestricted

Potential

(tons per yr)

Hourly

Potential

(lbs per hr)

AQD Facility ID: 03700016

Facility Name: Gopher Resource LLC

MINNESOTA POLLUTION CONTROL AGENCY

AIR QUALITY

520 LAFAYETTE ROAD

ST. PAUL, MN 55155-4194

PM < 10 micron 

SV 018 PER 003 3.730E-02 1.630E-01 1.630E-01

Totals 3.685E+03 9.456E+01 0.000E+00

Polycyclic organic matter 

EU 004 PER 003 3.710E-06

EU 006 PER 003 3.710E-06

EU 007 PER 003 1.110E-05

SV 002 PER 003 2.260E-07 9.890E-07

SV 003 PER 003 1.970E-06 8.810E-06

SV 008 PER 003 1.130E-07 4.950E-07

SV 009 PER 003 4.240E-07 1.860E-06 1.860E-06

SV 010 PER 003 4.240E-07 1.860E-06 1.860E-06

SV 011 PER 003 4.240E-07 1.860E-06 1.860E-06

SV 012 PER 003 4.240E-07 1.860E-06 1.860E-06

SV 013 PER 003 4.240E-07 1.860E-06 1.860E-06

SV 014 PER 003 4.240E-07 1.860E-06 1.860E-06

SV 015 PER 003 4.240E-07 1.860E-06 1.860E-06

SV 016 PER 003 4.240E-07 1.860E-06 1.860E-06

SV 017 PER 003 4.240E-07 1.860E-06 1.860E-06

SV 018 PER 003 4.240E-07 1.860E-06 1.860E-06

Totals 3.712E-05 2.889E-05 0.000E+00

Total Particulate Matter 

EU 001 PER 003 0.000E+00 6.570E+01 0.000E+00

EU 002 PER 003 0.000E+00 6.570E+01 0.000E+00

EU 004 PER 003 1.168E+03

EU 006 PER 003 7.917E+01

EU 007 PER 003 4.469E+03

EU 009 PER 003 3.232E+02

EU 011 PER 003 1.314E+01

EU 012 PER 003 1.314E+01

EU 013 PER 003 1.314E+01

EU 014 PER 003 1.314E+01

EU 015 PER 003 1.314E+01

EU 016 PER 003 1.314E+01

EU 017 PER 003 1.314E+01

EU 018 PER 003 1.314E+01

Page 18 of 22
5 February, 2010 15:39

Show: Active and Pending Records

FACILITY DESCRIPTION: Potential-to-emit (by pollutant)

Retired

By

(Action)

Added

By

(Action)

Pollutant Item Actual

Emissions

(tons per yr)

Limited

Potential

(tons per yr)

Unrestricted

Potential

(tons per yr)

Hourly

Potential

(lbs per hr)

AQD Facility ID: 03700016

Facility Name: Gopher Resource LLC

MINNESOTA POLLUTION CONTROL AGENCY

AIR QUALITY

520 LAFAYETTE ROAD

ST. PAUL, MN 55155-4194

Total Particulate Matter 

EU 019 PER 003 1.314E+01

EU 020 PER 003 1.314E+01

EU 021 PER 003 5.309E+01

EU 023 PER 001 6.300E-01 1.600E-01 1.600E-01

EU 023 PER 003 5.980E+00 1.500E+00 1.500E+00

EU 024 PER 001 6.300E-01 1.600E-01 1.600E-01

EU 024 PER 003 5.980E+00 1.500E+00 1.500E+00

SV 001 PER 001 6.430E-01 4.390E+01 2.820E+00

SV 001 PER 003 1.500E+00 0.000E+00 6.570E+00

SV 002 PER 001 7.110E+00 2.243E+02 3.110E+01

SV 002 PER 003 9.700E-01 0.000E+00 4.240E+00

SV 003 PER 001 5.100E+00 1.783E+02 2.234E+01

SV 003 PER 003 1.795E+01 0.000E+00 7.862E+01

SV 004 PER 001 1.290E+00 5.650E+00 5.650E+00

SV 004 PER 003 1.210E-01 0.000E+00 5.310E-01

SV 008 PER 003 6.000E-01 2.640E+00

SV 009 PER 003 3.730E-02 1.630E-01 1.630E-01

SV 010 PER 003 3.730E-02 1.630E-01 1.630E-01

SV 011 PER 003 3.730E-02 1.630E-01 1.630E-01

SV 012 PER 003 3.730E-02 1.630E-01 1.630E-01

SV 013 PER 003 3.730E-02 1.630E-01 1.630E-01

SV 014 PER 003 3.730E-02 1.630E-01 1.630E-01

SV 015 PER 003 3.730E-02 1.630E-01 1.630E-01

SV 016 PER 003 3.730E-02 1.630E-01 1.630E-01

SV 017 PER 003 3.730E-02 1.630E-01 1.630E-01

SV 018 PER 003 3.730E-02 1.630E-01 1.630E-01

Totals 6.359E+03 9.723E+01 0.000E+00

Sulfuric Acid Mist 

EU 001 PER 003 6.570E+01

SV 001 PER 003 1.500E+00 6.570E+00

Totals 6.570E+01 6.570E+00 0.000E+00

Antimony compounds 

EU 004 PER 001 4.100E-01 1.800E+00 1.800E+00

EU 004 PER 003 0.000E+00 6.400E-01 0.000E+00

EU 007 PER 001 1.250E+00 5.470E+00 5.470E+00

Page 19 of 22
5 February, 2010 15:39

Show: Active and Pending Records

FACILITY DESCRIPTION: Potential-to-emit (by pollutant)

Retired

By

(Action)

Added

By

(Action)

Pollutant Item Actual

Emissions

(tons per yr)

Limited

Potential

(tons per yr)

Unrestricted

Potential

(tons per yr)

Hourly

Potential

(lbs per hr)

AQD Facility ID: 03700016

Facility Name: Gopher Resource LLC

MINNESOTA POLLUTION CONTROL AGENCY

AIR QUALITY

520 LAFAYETTE ROAD

ST. PAUL, MN 55155-4194

Antimony compounds 

EU 007 PER 003 0.000E+00 1.300E-01 0.000E+00

EU 009 PER 001 4.500E-01 1.970E+00 1.970E+00

EU 009 PER 003 0.000E+00 2.562E+01 0.000E+00

SV 002 PER 003 8.430E-02 3.690E-01

SV 003 PER 003 1.140E+00 0.000E+00 4.990E+00

SV 008 PER 003 4.000E-02 1.800E-01

Totals 2.639E+01 5.539E+00 0.000E+00

Selenium compounds 

EU 004 PER 003 1.030E-05

EU 006 PER 003 1.030E-05

EU 007 PER 003 3.090E-05

SV 002 PER 003 1.320E-07 5.770E-07

SV 003 PER 003 1.880E-06 8.220E-06

SV 008 PER 003 6.590E-08 2.890E-07

SV 009 PER 003 1.180E-06 5.150E-06 5.150E-06

SV 010 PER 003 1.180E-06 5.150E-06 5.150E-06

SV 011 PER 003 1.180E-06 5.150E-06 5.150E-06

SV 012 PER 003 1.180E-06 5.150E-06 5.150E-06

SV 013 PER 003 1.180E-06 5.150E-06 5.150E-06

SV 014 PER 003 1.180E-06 5.150E-06 5.150E-06

SV 015 PER 003 1.180E-06 5.150E-06 5.150E-06

SV 016 PER 003 1.180E-06 5.150E-06 5.150E-06

SV 017 PER 003 1.180E-06 5.150E-06 5.150E-06

SV 018 PER 003 1.180E-06 5.150E-06 5.150E-06

Totals 1.030E-04 6.059E-05 0.000E+00

Sulfur Dioxide 

EU 004 PER 003 1.437E+03

EU 006 PER 001 1.000E-02 4.000E-02 4.000E-02

EU 006 PER 003 0.000E+00 3.000E-02 0.000E+00

EU 007 PER 003 1.752E+03

EU 009 PER 003 3.710E+02

EU 023 PER 001 1.000E+00 2.500E-01 2.500E-01

EU 023 PER 003 5.600E+00 1.400E+00 1.400E+00

EU 024 PER 001 1.000E+00 2.500E-01 2.500E-01

EU 024 PER 003 5.600E+00 1.400E+00 1.400E+00

Page 20 of 22
5 February, 2010 15:39

Show: Active and Pending Records

FACILITY DESCRIPTION: Potential-to-emit (by pollutant)

Retired

By

(Action)

Added

By

(Action)

Pollutant Item Actual

Emissions

(tons per yr)

Limited

Potential

(tons per yr)

Unrestricted

Potential

(tons per yr)

Hourly

Potential

(lbs per hr)

AQD Facility ID: 03700016

Facility Name: Gopher Resource LLC

MINNESOTA POLLUTION CONTROL AGENCY

AIR QUALITY

520 LAFAYETTE ROAD

ST. PAUL, MN 55155-4194

Sulfur Dioxide 

SV 003 PER 001 5.300E+02 2.321E+03 2.321E+03

SV 003 PER 003 5.300E+02 0.000E+00 2.321E+03

SV 008 PER 003 2.063E+01 9.034E+01

SV 009 PER 003 2.940E-03 1.290E-02 1.290E-02

SV 010 PER 003 2.940E-03 1.290E-02 1.290E-02

SV 011 PER 003 2.940E-03 1.290E-02 1.290E-02

SV 012 PER 003 2.940E-03 1.290E-02 1.290E-02

SV 013 PER 003 2.940E-03 1.290E-02 1.290E-02

SV 014 PER 003 2.940E-03 1.290E-02 1.290E-02

SV 015 PER 003 2.940E-03 1.290E-02 1.290E-02

SV 016 PER 003 2.940E-03 1.290E-02 1.290E-02

SV 017 PER 003 2.940E-03 1.290E-02 1.290E-02

SV 018 PER 003 2.940E-03 1.290E-02 1.290E-02

Totals 3.562E+03 2.414E+03 0.000E+00

Volatile Organic Compounds 

EU 004 PER 003 2.400E-01

EU 006 PER 001 4.000E-02 2.000E-01 2.000E-01

EU 006 PER 003 0.000E+00 2.400E-01 0.000E+00

EU 007 PER 003 7.100E-01

EU 009 PER 001 9.360E+00 4.100E+01 4.100E+01

EU 009 PER 003 0.000E+00 1.660E-01 0.000E+00

EU 023 PER 001 9.800E-01 2.500E-01 2.500E-01

EU 023 PER 003 6.950E+00 1.740E+00 1.740E+00

EU 024 PER 001 9.800E-01 2.500E-01 2.500E-01

EU 024 PER 003 6.950E+00 1.740E+00 1.740E+00

SV 003 PER 003 1.640E+00 7.170E+00

SV 008 PER 003 3.800E-01 1.670E+00

SV 009 PER 003 2.700E-02 1.180E-01 1.180E-01

SV 010 PER 003 2.700E-02 1.180E-01 1.180E-01

SV 011 PER 003 2.700E-02 1.180E-01 1.180E-01

SV 012 PER 003 2.700E-02 1.180E-01 1.180E-01

SV 013 PER 003 2.700E-02 1.180E-01 1.180E-01

SV 014 PER 003 2.700E-02 1.180E-01 1.180E-01

SV 015 PER 003 2.700E-02 1.180E-01 1.180E-01

SV 016 PER 003 2.700E-02 1.180E-01 1.180E-01

Page 21 of 22
5 February, 2010 15:39

Show: Active and Pending Records

FACILITY DESCRIPTION: Potential-to-emit (by pollutant)

Retired

By

(Action)

Added

By

(Action)

Pollutant Item Actual

Emissions

(tons per yr)

Limited

Potential

(tons per yr)

Unrestricted

Potential

(tons per yr)

Hourly

Potential

(lbs per hr)

AQD Facility ID: 03700016

Facility Name: Gopher Resource LLC

MINNESOTA POLLUTION CONTROL AGENCY

AIR QUALITY

520 LAFAYETTE ROAD

ST. PAUL, MN 55155-4194

Volatile Organic Compounds 

SV 017 PER 003 2.700E-02 1.180E-01 1.180E-01

SV 018 PER 003 2.700E-02 1.180E-01 1.180E-01

Totals 6.016E+00 1.350E+01 0.000E+00

Page 22 of 22
EU001 Raw Material Processing Operation

CE001 Wet scrubber with lime slurry 100% capture 90% control - PM (archived reference taSV001 90% control - PM10 (archived reference ta

75 ton/hr processing capacity 72% control - Pb (archived reference ta25 ton/hr production capacity (2) 90% control - PM2.5 (assumed based on P

ID 

Air Flow(dscfm)

IPER Allowed emission rate (lb/hr)

IPER PMEmission Rates(tons/yr)

NESHAP Lead Concentration (for fugitive dust source)(gr/dscf)

NESHAP Lead EmissionRates (lb/hr) 

NESHAP Lead EmissionRates (ton/yr) 

SV 001 10,421 34.54 151.28 0.00087 0.078 0.34

Item Pollutant Notes Emission Factor Emission Factor Units (lb/unit) Emission Factor Source Uncontrolled Hourly Potential (lbs/hr) Controlled Hourly Potential (lbs/hour) Unrestricted/ Unlimited Potential (tpy) Capt

Efficie

EU001 PM 6.00E-01 lb/ton

AP-42 Table 

12.10-7(1) 1.50E+01 1.50 65.70 1.0

EU001 PM10 6.00E-01 lb/ton

assumed same 

as PM 1.50E+01 1.50 65.70 1.0

EU001 PM2.5 6.00E-01 lb/ton

assumed same 

as PM 1.50E+01 1.50 65.70 1.0

EU001 H2SO4

Pollutant listed 

in AP-42, but 

unquantified NA

assumed same 

as PM10 1.50E+01 1.50 65.70 1.0

EU001 Lead

uncontrolled hourly is based on limit & efficiency 2.78E-01 0.078 1.22 1.0

(NESHAP limit)

PM< 100 tpy, Lead < 10 

(1) This emission factor is for scrap handling at gray iron foundries, and is the only factor available for this type of operation.(2) This is an estimated capacity based on the approximate capacities of the furnaces; estimate generated because emission factor is basd 
EU002 Raw Material Handling Operation 30 ton/hr

CE008/9 Torit dust colletors 100% captureSV008 99% control - PM (archived referenc

99% control - PM10 (archived referenc

79% control - Pb (archived referenc99% control - PM2.5 (assumed based o

25 ton/hr production capacity (3)

Item Pollutant Emission Factor

Emission 

Factor 

Units

(lb/unit)

Emission 

Factor Source

Uncontrolled 

Hourly 

Potential

(lbs/hr) 

Controlled 

Hourly 

Potential 

(lbs/hour)

Unrestricted/

Unlimited 

Potential

(tpy)

Capture 

Efficiency

Cont

Efficie

(CE00

EU002 PM 6.00E-01 lb/ton

AP-42 table 

12.10-7 (1) 15.00 0.15 65.70 1.00 0.9

EU002 PM10 6.00E-01 lb/dscf

Assume same 

as PM 15.00 1.05 65.70 1.00 0.9

EU002 PM2.5 6.00E-01 lb/dscf

Assume same 

as PM 15.00 1.05 65.70 1.00 0.9

EU002 Lead 1.98E-01 mg/dscm

avg test results for SV002(2) 0.57 0.12 2.49 1.00 0.7

4.37E-07 lb/dscm conversion

35.3 dscf/dscm PM< 100 tpy, Lead < 10 tpy, so CAM 

1.24E-08 lb/dscf

(1) This emission factor is for scrap handling at gray iron foundries, and is the only factor available for this type of operation.(2) 2004-2008 stack test results(3) This is an estimated capacity based on the approximate capacities of the furnaces; estimate generated because emission factor is basd on p
EU004 West Reverberatory furnace 4.1 ton/hr

CE004/5 Baghouse 80% capture (3) 99% control - PM, PM10SV003 (20% to CE003/CE008) 79% control - metallic HAPProcess Emissions

pound per

lb/hr uncontrolled tpy uncontrolled

Arsenic 1.50E-02 ton metal charged test(1) 2.18E-02 0.10Chlorine 1.00E-01 ton metal charged FIRE 0.41 1.80Antimony 1.00E-01 ton metal charged test(1) 0.15 0.64

NOX 3.00E-01 ton metal charged FIRE 1.23 5.39

Cadmium 1.05E-06 ton metal produced FIRE 0.00 0.00PM2.5 same as PM10? 127.10 556.70

PM10 3.10E+01 ton metal charged FIRE 127.10 556.70

PM 5.10E+01 ton metal charged FIRE 266.50 1167.27 assumed to be at least as much as total leadLead 6.50E+01 ton lead produced AP-42/FIRE 266.50 1167.27SO2 8.00E+01 ton metal charged CEMS(2) 328.00 1436.64

HAP 1169.80

(1) since no production limits specified, assume tested at maximum capacity(2) This is derived from CEMS data, which is in terms of tons of SO2 per ton of metal charged.

Uncontrolled SO2 = 80.00 lb/ton uncontrolled (very conservative, from AP-42 Table 12.11-2; actual data sho

328 lb/hr uncontrolled limit = 530 lb/hr controlled

1436.64 tpy uncontrolled

(3) Fugitive emissions are captured and routed to same control device as the main process emissions, so it's really 100% capture

Fuel Combustion

10 MMBtu/hour 

Fuels: Natural Gas 1020 MMBtu/mmcfFuel Consumption: Natural Gas 0.009803922 mmcf/hour ((MMBtu/hr)/(MMBtu/mmcf))

Process emissions

Natural Gas Emission Factors Total Emissions To CE004/ CE005 T

lb/mmcf lb/hr tpy Total lb/hr Total tpy lb/hr tpy 

PM 7.6 0.0745098 0.326352941 266.57 1167.60 213.26 934.08 PM10 7.6 0.0745098 0.326352941 127.17 557.02 101.74 445.62 

PM2.5 7.6 0.0745098 0.326352941 127.17 557.02 101.74 445.62 
SO2 0.6 0.00588235 0.025764706 328.01 1436.67 262.40 1149.33 

NOX 100 0.98039216 4.294117647 2.21 9.68 1.77 7.75 

CO 84 0.82352941 3.607058824 0.82 3.61 0.66 2.89 VOC 5.5 0.05392157 0.236176471 0.05 0.24 0.04 0.19 Lead 0.0005 4.902E-06 2.14706E-05 266.50 1167.27 213.20 933.82 Benzene 0.00213 2.0882E-05 9.14647E-05 2.09E-05 9.15E-05 1.67E-05 7.32E-05 Dichlorobenzene 0.0012 1.1765E-05 5.15294E-05 1.18E-05 5.15E-05 9.41E-06 4.12E-05 Formaldehyde 0.075 0.00073529 0.003220588 7.35E-04 3.22E-03 5.88E-04 2.58E-03 Hexane 1.8 0.01764706 0.077294118 1.76E-02 7.73E-02 1.41E-02 6.18E-02 Naphthalene 0.00061 5.9804E-06 2.61941E-05 5.98E-06 2.62E-05 4.78E-06 2.10E-05 Toluene 0.0034 3.3333E-05 0.000146 3.33E-05 1.46E-04 2.67E-05 1.17E-04 POM 0.0000864 8.4706E-07 3.71012E-06 8.47E-07 3.71E-06 6.78E-07 2.97E-06 Arsensic 0.0002 1.9608E-06 8.58824E-06 2.18E-02 9.54E-02 1.74E-02 7.63E-02 Beryllium 0.000012 1.1765E-07 5.15294E-07 1.18E-07 5.15E-07 9.41E-08 4.12E-07 Cadmium 0.0011 1.0784E-05 4.72353E-05 1.51E-05 6.61E-05 1.21E-05 5.29E-05 Chromium 0.0014 1.3725E-05 6.01176E-05 1.37E-05 6.01E-05 1.10E-05 4.81E-05 Manganese 0.00038 3.7255E-06 1.63176E-05 3.73E-06 1.63E-05 2.98E-06 1.31E-05 Mercury 0.00026 2.549E-06 1.11647E-05 2.55E-06 1.12E-05 2.04E-06 8.93E-06 Nickel 0.0021 2.0588E-05 9.01765E-05 2.06E-05 9.02E-05 1.65E-05 7.21E-05 Selenium 0.00024 2.3529E-06 1.03059E-05 2.35E-06 1.03E-05 1.88E-06 8.24E-06 Chlorine 0.41 1.80 3.28E-01 1.44E+00 Antimony 0.15 0.64 1.16E-01 5.09E-01 Total HAPs 1.8886184 267.10 1169.88 213.68 935.90 
EU006 Scrap Dryer + Cyclone (80%) 30 ton/hr

CE005 Baghouse 100% capture 99% controlProcess Emissions

EF source pound per

lb/hr uncontrolled

tpy uncontrolled

PM2.5 5.04E-01 AP-42 (2) tons of metal 15.12 66.23

PM10 5.40E-01 AP-42 (2) tons of metal 16.20 70.96PM 6.00E-01 AP-42 (1) tons of metal 18.00 78.84

(1) Table 12.10-7, for Gray Iron Foundries. This is the only place scrap pretreatment is addressed.(2) Table 12.10-9, for Gray Iron Foundries. These are approximate particle size percentages for uncontrolled emissions from fur

Fuel Combustion

10 MMBtu/hour 

Fuels: Natural Gas 1020 MMBtu/mmcfFuel Consumption: Natural Gas 0.009803922 mmcf/hour ((MMBtu/hr)/(MMBtu/mmcf))Natural Gas Emission Factors To CE004/ 

lb/mmcf lb/hr tpy Total lb/hr Total tpy lb/hr 

PM 7.6 7.45E-02 0.326352941 18.07 79.17 3.61 PM10 7.6 7.45E-02 0.326352941 16.27 71.28 3.25 

PM2.5 7.6 7.45E-02 0.326352941 15.19 66.55 3.04 SO2 0.6 5.88E-03 0.025764706 0.01 0.03 0.01 NOX 100 9.80E-01 4.294117647 0.98 4.29 0.98 

CO 84 8.24E-01 3.607058824 0.82 3.61 0.82 VOC 5.5 5.39E-02 0.236176471 0.05 0.24 0.05 Lead 0.0005 4.90E-06 2.14706E-05 4.90E-06 2.15E-05 9.80E-07 Benzene 0.00213 2.09E-05 9.14647E-05 2.09E-05 9.15E-05 2.09E-05 Dichlorobenzene 0.0012 1.18E-05 5.15294E-05 1.18E-05 5.15E-05 1.18E-05 Formaldehyde 0.075 7.35E-04 0.003220588 7.35E-04 3.22E-03 7.35E-04 Hexane 1.8 1.76E-02 0.077294118 1.76E-02 7.73E-02 1.76E-02 Naphthalene 0.00061 5.98E-06 2.61941E-05 5.98E-06 2.62E-05 5.98E-06 Toluene 0.0034 3.33E-05 0.000146 3.33E-05 1.46E-04 3.33E-05 POM 0.0000864 8.47E-07 3.71012E-06 8.47E-07 3.71E-06 8.47E-07 Arsensic 0.0002 1.96E-06 8.58824E-06 1.96E-06 8.59E-06 3.92E-07 Beryllium 0.000012 1.18E-07 5.15294E-07 1.18E-07 5.15E-07 2.35E-08 
Cadmium 0.0011 1.08E-05 4.72353E-05 1.08E-05 4.72E-05 2.16E-06 

Chromium 0.0014 1.37E-05 6.01176E-05 1.37E-05 6.01E-05 2.75E-06 Manganese 0.00038 3.73E-06 1.63176E-05 3.73E-06 1.63E-05 7.45E-07 Mercury 0.00026 2.55E-06 1.11647E-05 2.55E-06 1.12E-05 2.55E-06 Nickel 0.0021 2.06E-05 9.01765E-05 2.06E-05 9.02E-05 4.12E-06 Selenium 0.00024 2.35E-06 1.03059E-05 2.35E-06 1.03E-05 4.71E-07 Total HAPs 1.8886184 1.85E-02 8.11E-02 1.85E-02 
EU007 East Reverberatory furnace 20 ton/hr

CE004/5 Baghouse 99% control - PM

79% control - metallic HAP

CE007 Afterburner 100% capture 95% control - VOC and CO - & volatile HAPCE008 SO2 control 100% capture 40% control - SO2

pound per

lb/hr uncontrolled

lb/hr to FS003/FS001

lb/hr to CE004/5

tpy uncontrolled capture

control (CE004/5) 

Arsenic 1.50E-02 ton metal charged test(1) 4.46E-03 8.93E-04 3.57E-03 0.02 0.80 0.79 

Chlorine 1.00E-01 ton metal charged FIRE 2.00 4.00E-01 1.60E+00 8.76 0.80 0.00 Antimony 1.00E-01 ton metal charged test(1) 0.03 5.95E-03 2.38E-02 0.13 0.80 0.79 

NOX 3.00E-01 ton metal charged FIRE 6.00 1.20E+00 4.80E+00 26.28 0.80 0.00 

Cadmium 1.05E-06 ton metal produced FIRE 0.00 4.20E-06 1.68E-05 0.00 0.80 0.79 PM2.5 same as PM10? 620.00 1.24E+02 4.96E+02 2715.60 0.80 0.99 

PM10 3.10E+01 ton metal charged FIRE 620.00 1.24E+02 4.96E+02 2715.60 0.80 0.99 

PM 5.10E+01 ton metal charged FIRE 1020.00 2.04E+02 8.16E+02 4467.60 0.80 0.99 Lead 6.50E+01 ton lead produced AP-42/FIRE 1300.00 2.60E+02 1.04E+03 5694.00 0.80 0.79 SO2 2.00E+01 ton metal charged CEMS(2) 399.90 8.00E+01 1.60E+02 1751.57 0.80 0.40 

HAP 5702.91

(1) since no production limits specified, assume tested at maximum capacity(2) This is derived from CEMS data, which is in terms of tons of SO2 per ton of metal charged.

Controlled SO2 = 0.0060 ton emitted/ton metal (conservative estimate based on EI)

0.0100 ton generated/ton metal (assuming 40% control)

20.00 lb/ton uncontrolled

399.90 lb/hr uncontrolled limit = 530 lb/hr controlled

1751.57 tpy uncontrolled

Fuel Combustion

30 MMBtu/hour 

Fuels: Natural Gas 1020 MMBtu/mmcfFuel Consumption: Natural Gas 0.029411765 mmcf/hour ((MMBtu/hr)/(MMBtu/mmcf))

Natural Gas Emission Factors To CE004/ CE005 

lb/mmcf lb/hr tpy Total lb/hr Total tpy lb/hr tpy 

PM 7.6 0.22352941 0.979058824 1020.22 4468.58 816.18 3574.8
PM10 7.6 0.22352941 0.979058824 620.22 2716.58 496.18 2173.2

PM2.5 7.6 0.22352941 0.979058824 620.22 2716.58 496.18 2173.2SO2 0.6 0.01764706 0.077294118 399.92 1751.65 191.96 840.79 NOX 100 2.94117647 12.88235294 8.94 39.16 7.15 31.33 

CO 84 2.47058824 10.82117647 2.47 10.82 0.10 0.43 VOC 5.5 0.16176471 0.708529412 0.16 0.71 0.01 0.03 Lead 0.0005 1.4706E-05 6.44118E-05 1300.00 5694.00 1040.00 4555.2Benzene 0.00213 6.2647E-05 0.000274394 6.26E-05 2.74E-04 2.51E-06 1.10E-0Dichlorobenzene 0.0012 3.5294E-05 0.000154588 3.53E-05 1.55E-04 1.41E-06 6.18E-0Formaldehyde 0.075 0.00220588 0.009661765 2.21E-03 9.66E-03 8.82E-05 3.86E-0Hexane 1.8 0.05294118 0.231882353 5.29E-02 2.32E-01 2.12E-03 9.28E-0Naphthalene 0.00061 1.7941E-05 7.85824E-05 1.79E-05 7.86E-05 7.18E-07 3.14E-0Toluene 0.0034 0.0001 0.000438 1.00E-04 4.38E-04 4.00E-06 1.75E-0POM 0.0000864 2.5412E-06 1.11304E-05 2.54E-06 1.11E-05 1.02E-07 4.45E-0Arsensic 0.0002 5.8824E-06 2.57647E-05 4.47E-03 1.96E-02 3.58E-03 1.57E-0Beryllium 0.000012 3.5294E-07 1.54588E-06 3.53E-07 1.55E-06 2.82E-07 1.24E-0Cadmium 0.0011 3.2353E-05 0.000141706 5.34E-05 2.34E-04 4.27E-05 1.87E-0Chromium 0.0014 4.1176E-05 0.000180353 4.12E-05 1.80E-04 3.29E-05 1.44E-0Manganese 0.00038 1.1176E-05 4.89529E-05 1.12E-05 4.90E-05 8.94E-06 3.92E-0Mercury 0.00026 7.6471E-06 3.34941E-05 7.65E-06 3.35E-05 6.12E-06 2.68E-0Nickel 0.0021 6.1765E-05 0.000270529 6.18E-05 2.71E-04 4.94E-05 2.16E-0Selenium 0.00024 7.0588E-06 3.09176E-05 7.06E-06 3.09E-05 5.65E-06 2.47E-0Chlorine 2.00 8.76 1.60E+00 7.01E+0Antimony 0.03 0.13 2.38E-02 1.04E-0Total HAPs 1.8886184 1302.09 5703.15 1041.63 4562.3
EU009 Blast Furnace 4.5 ton/hr

CE004/5 Baghouse 80% capture 99% control - PM, PM10

Coke 0.54 ton/h

79% control - metallic HAP

CE007 Afterburner 100% capture 95% control - VOC and CO - & volatile HAP

pound per lb/hr uncontrolled

lb/hr uncaptured (to FS004/FS001)

lb/hr captured (to CE004/5)

tpy 

uncontrolled 

PM10 1.00E+00 ton lead produced FIRE 4.50E+00 0.9 3.60 19.71 

PM 1.64E+01 ton lead produced FIRE 7.38E+01 14.76 59.04 323.24 PM2.5 1.00E+00 ton lead produced assumed = PM10 4.50E+00 0.9 3.60 19.71 

SO2 1.88E+01 ton metal charged CEMS (1) 8.47E+01 16.94 67.76 370.99 NOx 1.00E-01 ton lead produced FIRE 4.50E-01 NOx 2.10E+01 ton Coke burned FIRE 1.13E+01 NOX - total 1.18E+01 2.36 9.43 51.64 

VOC 7.00E-02 ton Coke burned FIRE 3.78E-02 0.00 0.04 0.17 CO 1.80E+01 ton lead produced FIRE 8.10E+01CO 6.00E-01 ton Coke burned FIRE 3.24E-01CO - Total 8.13E+01 0.00 81.32 356.20 Lead 6.50E+01 ton lead produced Same as EU004 2.93E+02 58.50 234.00 1281.15 Acetaldehyde 4.80E-02 ton lead produced FIRE 2.16E-01 0.95 Acetophenone 9.60E-03 ton lead produced FIRE 4.32E-02 0.19 Acrolein 1.80E-02 ton lead produced FIRE 8.10E-02 0.35 Benzene 2.20E-01 ton lead produced FIRE 9.90E-01 4.34 Arsenic 2.90E+00 ton lead produced FIRE 1.31E+01 57.16 Bis (2-ethylhexyl) phthalate (DEHP) 2.10E-02 ton lead produced FIRE 9.45E-02 0.41 1,3-Butadiene 7.90E-01 ton lead produced FIRE 3.56E+00 15.57 Beryllium 2.20E+00 ton lead produced FIRE 9.90E+00 43.36 Biphenyl 3.20E-02 ton lead produced FIRE 1.44E-01 0.63 Carbon disulfide 2.70E-01 ton lead produced FIRE 1.22E+00 5.32 Chlorine 1.00E-01 ton lead produced FIRE 4.50E-01 1.97 Chlorobenzene 7.30E-03 ton lead produced FIRE 3.29E-02 0.14 Cadmium 7.86E-05 ton lead produced Permittee 3.54E-04 0.0015 Chromium 1.44E-05 ton Coke burned FIRE 7.78E-06 0.000034 Cumene 8.00E-03 ton lead produced FIRE 3.60E-02 0.16 Ethylbenzene 6.70E-02 ton lead produced FIRE 3.02E-01 1.32 Formaldehyde 1.20E-02 ton lead produced FIRE 5.40E-02 0.24 Hexane 2.90E-02 ton lead produced FIRE 1.31E-01 0.57 Naphthalene 6.10E-02 ton lead produced FIRE 2.75E-01 1.20 Mercury 1.05E-04 ton Coke burned Permittee 5.69E-05 0.000249 Phenol 3.70E-02 ton lead produced FIRE 1.67E-01 0.73 Styrene 4.30E-01 ton lead produced FIRE 1.94E+00 8.48 Toluene 2.20E-01 ton lead produced FIRE 9.90E-01 4.34 Xylenes 5.00E-02 ton lead produced FIRE 2.25E-01 0.99 Methylene chloride (Dichloromethane) 2.00E-01 ton lead produced FIRE 9.00E-01 3.94 Nickel 2.26E-04 ton Coke burned FIRE 1.22E-04 0.000535 Antimony 1.30E+00 ton lead produced FIRE 5.85E+00 25.62 

(1) This is derived from CEMS data, which is in terms of tons of SO2 per ton of metal charged.

Controlled SO2 = 0.0094 ton emitted/ton metal (conservative estimate based on EI)
0.0094 ton generated/ton metal

18.82 lb/ton uncontrolled84.70 lb/hr uncontrolled limit = 530 lb/hr controlled

370.99 tpy uncontrolled

To CE004/ CE005 To FS004/FS001 (each)

Total lb/hr Total tpy lb/hr tpy lb/hr tpy

PM 7.38E+01 3.23E+02 5.90E+01 2.59E+02 7.38 32.32PM10 4.50E+00 1.97E+01 3.60E+00 1.58E+01 0.45 1.97

PM2.5 4.50E+00 1.97E+01 3.60E+00 1.58E+01 0.45 1.97SO2 8.47E+01 3.71E+02 4.07E+01 1.78E+02 5.08 22.26NOX 1.18E+01 5.16E+01 9.43E+00 4.13E+01 1.18 5.16CO 8.13E+01 3.56E+02 3.25E+00 1.42E+01 8.13 35.62VOC 3.78E-02 1.66E-01 1.51E-03 6.62E-03 3.78E-03 1.66E-02Lead 2.93E+02 1.28E+03 2.34E+02 1.02E+03 29.25 128.12Benzene 9.90E-01 4.34E+00 3.96E-02 1.73E-01 9.90E-02 4.34E-01Dichlorobenzene 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00Formaldehyde 5.40E-02 2.37E-01 2.16E-03 9.46E-03 5.40E-03 2.37E-02Hexane 1.31E-01 5.72E-01 5.22E-03 2.29E-02 1.31E-02 5.72E-02Naphthalene 2.75E-01 1.20E+00 1.10E-02 4.81E-02 2.75E-02 1.20E-01Toluene 9.90E-01 4.34E+00 3.96E-02 1.73E-01 9.90E-02 4.34E-01POM 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00Arsensic 1.31E+01 5.72E+01 1.04E+01 4.57E+01 1.31 5.72Beryllium 9.90E+00 4.34E+01 7.92E+00 3.47E+01 0.99 4.34Cadmium 3.54E-04 1.55E-03 2.83E-04 1.24E-03 3.54E-05 1.55E-04Chromium 7.78E-06 3.41E-05 6.22E-06 2.72E-05 7.78E-07 3.41E-06Manganese 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00Mercury 5.69E-05 2.49E-04 4.55E-05 1.99E-04 5.69E-06 2.49E-05Nickel 1.22E-04 5.35E-04 9.76E-05 4.28E-04 1.22E-05 5.35E-05Selenium 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00Chlorine 4.50E-01 1.97E+00 3.60E-01 1.58E+00 4.50E-02 1.97E-01Antimony 5.85E+00 2.56E+01 4.68E+00 2.05E+01 0.59 2.56Total HAPs 3.33E+02 1.46E+03 2.58E+02 1.17E+03 33.31 145.91Acetaldehyde 2.16E-01 9.46E-01 8.64E-03 3.78E-02 2.16E-02 9.46E-02Acetophenone 4.32E-02 1.89E-01 1.73E-03 7.57E-03 4.32E-03 1.89E-02Acrolein 8.10E-02 3.55E-01 3.24E-03 1.42E-02 8.10E-03 3.55E-02Bis (2-ethylhexyl) phthalate (DEHP) 9.45E-02 4.14E-01 3.78E-03 1.66E-02 9.45E-03 4.14E-021,3-Butadiene 3.56E+00 1.56E+01 1.42E-01 6.23E-01 3.56E-01 1.56E+00Biphenyl 1.44E-01 6.31E-01 5.76E-03 2.52E-02 1.44E-02 6.31E-02Carbon disulfide 1.22E+00 5.32E+00 4.86E-02 2.13E-01 1.22E-01 5.32E-01Chlorobenzene 3.29E-02 1.44E-01 1.31E-03 5.76E-03 3.29E-03 1.44E-02Cumene 3.60E-02 1.58E-01 1.44E-03 6.31E-03 3.60E-03 1.58E-02Ethylbenzene 3.02E-01 1.32E+00 1.21E-02 5.28E-02 3.02E-02 1.32E-01Phenol 1.67E-01 7.29E-01 6.66E-03 2.92E-02 1.67E-02 7.29E-02Styrene 1.94E+00 8.48E+00 7.74E-02 3.39E-01 1.94E-01 8.48E-01Xylenes 2.25E-01 9.86E-01 9.00E-03 3.94E-02 2.25E-02 9.86E-02Methylene chloride (Dichloromethane) 9.00E-01 3.94E+00 3.60E-02 1.58E-01 9.00E-02 3.94E-01
EU011 - EU020 Refining Kettles

Capacity = 100 ton/hr each

PM 0.03 lb/ton AP-42 Table 12.11-2

PM10 0.03 lb/ton assumed same as PM

PM2.5 0.03 lb/ton assumed same as PM10

Lead 0.01 lb/ton AP-42 Table 12.11-2

Calculations are per kettle - all are the same (10 total)

Uncontrolled 

lb/hr (each)

Uncontrolled 

tpy (each) Capture

To 

FS005/FS006 

lb/hr (all 10)

To 

FS005/FS006 

tpy (all 10)

To CE004/5 

lb/hr (all 10)

To CE004/5 tpy 

(all 10)

PM 3 13.14 0.8 6 26.28 24 105.12

PM10 3 13.14 0.8 6 26.28 24 105.12

PM2.5 3 13.14 0.8 6 26.28 24 105.12

Lead 1 4.38 0.8 2 8.76 8 35.04

HAP 1 4.38 0.8 2 8.76 8 35.04

Natural gas combustion (per unit) 5 MMBtu/hr each 0.004901961 MMcf/hr

 (assuming 1020 Btu/cf)

lb/MMCF lb/hr tpy

PM 7.6 3.73E-02 1.63E-01

PM10 7.6 3.73E-02 1.63E-01

PM2.5 7.6 3.73E-02 1.63E-01

SO2 0.6 2.94E-03 1.29E-02

NOX 100 4.90E-01 2.15E+00

VOC 5.5 2.70E-02 1.18E-01

CO 84 4.12E-01 1.80E+00

Lead 0.0005 2.45E-06 1.07E-05

Benzene 0.00213 1.04E-05 4.57E-05

Dichlorobenzene 0.0012 5.88E-06 2.58E-05

Formaldehyde 0.075 3.68E-04 1.61E-03

Hexane 1.8 8.82E-03 3.86E-02

Naphthalene 0.00061 2.99E-06 1.31E-05

Toluene 0.0034 1.67E-05 7.30E-05

POM 0.0000864 4.24E-07 1.86E-06

Arsensic 0.0002 9.80E-07 4.29E-06

Beryllium 0.000012 5.88E-08 2.58E-07

Cadmium 0.0011 5.39E-06 2.36E-05

Chromium 0.0014 6.86E-06 3.01E-05

Manganese 0.00038 1.86E-06 8.16E-06

Mercury 0.00026 1.27E-06 5.58E-06

Nickel 0.0021 1.03E-05 4.51E-05

Selenium 0.00024 1.18E-06 5.15E-06

Total HAPs 9.26E-03 4.05E-02
EU023 and EU024 - Generators

Each generator = 19.3 MMBtu/hr

Emission Factor Source: AP-42 Tables 3.3-1, 3.3-2

Diesel

Factor

lb/MMBtu lb/hr tpy

benzene 0.000933 0.018007 0.004502

Toluene 0.000409 0.007894 0.001973

xylene 0.000285 0.005501 0.001375

1,3-butadiene 0.0000391 0.000755 0.000189

formaldehyde 0.00118 0.022774 0.005694

acetaldehyde 0.000767 0.014803 0.003701

acrolein 0.0000925 0.001785 0.000446

PAH naphthalene 0.0000848 0.001637 0.000409

PAH acenaphthalene 0.00000506

PAH acenapththene 0.00000142

PAH fluorene 0.000292

PAH phenanthrene 0.0000294

PAH anthacene 0.00000187

PAH fluoranthene 0.00000761

PAH pyrene 0.00000478

PAH benzo(a)anthracene 0.00000168

PAH chrysene 0.000000353

PAH benzo(b)fluoranthene 9.91E-08

PAH benzo(k)fluoranthene 0.000000155

PAH benzo(a)pyrene 0.000000188

PAH indeno(1,2,3-cd)pyrene 0.000000375

PAH dibenz(a,h)anthracene 0.000000583

PAH benzo(g,h,l)perylene 0.000000489

PAH (excl. naphthalene) 0.000346062 0.006679 0.00167

Total HAP 0.004136462 0.079834 0.019958

NOX 4.41 85.11 21.28

CO 0.95 18.34 4.58

SO2 0.29 5.60 1.40

PM 0.31 5.98 1.50

PM10 0.31 5.98 1.50

PM2.5 0.31 5.98 1.50

VOC 0.36 6.95 1.74
SV002 Limits

ID 

Air Flow(dscfm)

PM IPER Concentration(gr/dscf)

PM IPER EmissionRates (lb/hr) 

PM IPER

Emission Rates(tons/yr)

SV 002 160,819 0.0362 49.91 218.61ID

Air Flow(dscfm)

SIP Lead Concentration(gr/dscf)

SIP Lead EmissionRates (lb/hr) 

SIP Allowable LeadEmission Rates(tons/yr)

NESHAP Lead Concentration (gr/dscf)

NESHAP Lead Cmpds EmissionRates (lb/hr) 

NESHAP Lead Cmpds EmissionRates (ton/yr) 

SV 002 160,819 0.0025 3.45 15.09 0.00087 1.20 5.25

0.43402001 0.151038964

CE003 control efficiency: Particulate 99%

Metallic HAP 79%

SV002 Emissions Total Controlled Total Uncontrolled FS005/FS006/ CE002 Ref kettles FS0

lb/hr tpy lb/hr tpy lb/hr tpy lb/hr 

PM 0.97 4.24 9.67E+01 4.24E+02 6.00 26.28 90.PM10 0.56 2.46 5.61E+01 2.46E+02 6.00 26.28 50.

PM2.5 0.56 2.46 5.61E+01 2.46E+02 6.00 26.28 50.SO2 43.25 189.44 4.33E+01 1.89E+02 2.00 8.76 41.

NOX 3.53 15.46 3.53E+00 1.55E+01 2.00 8.76 1.

CO 5.64 24.71 5.64E+00 2.47E+01 0.00 0.00 5.VOC 0.02 0.07 1.69E-02 7.40E-02 0.00 0.00 0.Lead (limit) 1.20 5.25 NA - limit NA - limit NA - lim

Benzene 6.60E-02 2.89E-01 6.60E-02 2.89E-01 0.Dichlorobenzene 3.14E-06 1.37E-05 3.14E-06 1.37E-05 0.Formaldehyde 3.80E-03 1.66E-02 3.80E-03 1.66E-02 0.Hexane 1.34E-02 5.87E-02 1.34E-02 5.87E-02 0.Naphthalene 1.83E-02 8.02E-02 1.83E-02 8.02E-02 0.Toluene 6.60E-02 2.89E-01 6.60E-02 2.89E-01 0.POM 2.26E-07 9.89E-07 2.26E-07 9.89E-07 0.Arsensic 1.83E-01 8.02E-01 8.72E-01 3.82E+00 0.Beryllium 1.39E-01 6.07E-01 6.60E-01 2.89E+00 0.Cadmium 5.91E-06 2.59E-05 2.81E-05 1.23E-04 0.Chromium 8.77E-07 3.84E-06 4.18E-06 1.83E-05 0.Manganese 2.09E-07 9.14E-07 9.93E-07 4.35E-06 0.Mercury 4.47E-06 1.96E-05 4.47E-06 1.96E-05 0.Nickel 2.86E-06 1.25E-05 1.36E-05 5.97E-05 0.Selenium 1.32E-07 5.77E-07 6.27E-07 2.75E-06 0.Chlorine 4.00E-02 1.75E-01 1.91E-01 8.35E-01 0.Antimony 8.43E-02 3.69E-01 4.02E-01 1.76E+00 0.Total HAPs 1.81 7.94 1.29E+02 5.64E+02 2.00 8.76 126.
SV003 Emissions

ID 

Air Flow(dscfm)

PM IPER Concentration(gr/dscf)

PM IPER EmissionRates (lb/hr) 

PM IPEREmission Rates(tons/yr)

PM NSPS limit (gr/dscf)

PM10 permit limit 

(equal to PM limit) (gr/dscf)

Allowed PM (lb/hr)

Allowed PM (tpy)

Allowed PM10 

(lb/hr)

Allowed PM10 

(tpy)

SV 003 95,188 0.0429 35.02 153.37 0.022 0.022 17.95 78.62 17.95 78.62ID

Air Flow(dscfm)

SIP Lead Concentration(gr/dscf)

SIP Lead EmissionRates (lb/hr) 

SIP Allowable 

LeadEmission Rates(tons/yr)

NESHAP Lead Concentration (gr/dscf)

NESHAP Lead

Cmpds EmissionRates (lb/hr) 

NESHAP Lead Cmpds EmissionRates (ton/yr) SO2 (lb/hr) SO2 (tpy)

SV 003 95,188 0.00306 2.50 10.94 0.00087 0.71 3.11 530 2321.4

Baghouse control efficiency: Particulate 99%

Particulate HAP 79%PM10

PM2.5

SV003 Emissions Total Controlled Total Uncontrolled EU004 EU007 EU009 Refining kettles EU006 FS002/ 

lb/hr tpy lb/hr tpy lb/hr tpy lb/hr tpy lb/hr tpy lb/hr tpy lb/hr tpy lb/hr 

PM (limit = 17.95 lb/hr) 17.95 78.62 NA - limit NA - limit NA - limit NA - limit NA - limit NA - limit NA - limit NA - limit NA - limit NA - limit NA - limit NA - limit 26.66 PM10 (assume same as PM limit) 17.95 78.62 NA - limit NA - limit 1.02E+02 4.46E+02 4.96E+02 2.17E+03 3.60E+00 1.58E+01 2.40E+01 1.05E+02 3.25E+00 1.43E+01 12.72 

PM2.5 (assume same as PM limit) 17.95 78.62 NA - limit NA - limit 1.02E+02 4.46E+02 4.96E+02 2.17E+03 3.60E+00 1.58E+01 2.40E+01 1.05E+02 3.04E+00 1.33E+01 12.72 

SO2 (limit) 530 2321.4 NA - limit NA - limit NA - limit NA - limit NA - limit NA - limit NA - limit NA - limit NA - limit NA - limit 32.80 

NOX 21.63 94.73 2.16E+01 9.47E+01 1.77 7.75 7.15 31.33 9.43E+00 4.13E+01 9.80E-01 4.29E+00 0.22 

CO 13.30 58.24 1.33E+01 5.82E+01 0.66 2.89 0.10 0.43 3.25E+00 1.42E+01 8.24E-01 3.61E+00 0.08 VOC * 1.64 7.17 1.30E-01 5.71E-01 0.04 0.19 0.01 0.03 1.51E-03 6.62E-03 5.39E-02 2.36E-01 0.01 Lead (limit) 0.71 3.11 NA - limit NA - limit NA - limit NA - limit NA - limit NA - limit NA - limit NA - limit NA - limit NA - limit NA - limit NA - limit NA - limit NA 

Benzene 0.14 0.61 1.39E-01 6.07E-01 1.67E-05 7.32E-05 2.51E-06 1.10E-05 3.96E-02 1.73E-01 2.09E-05 9.15E-05 0.00 Dichlorobenzene 0.00 0.00 2.73E-05 1.20E-04 9.41E-06 4.12E-05 1.41E-06 6.18E-06 0.00E+00 0.00E+00 1.18E-05 5.15E-05 0.00 Formaldehyde 0.0093 0.0406 9.27E-03 4.06E-02 5.88E-04 2.58E-03 8.82E-05 3.86E-04 2.16E-03 9.46E-03 7.35E-04 3.22E-03 0.00 

Hexane 0.06 0.26 5.92E-02 2.59E-01 1.41E-02 6.18E-02 2.12E-03 9.28E-03 5.22E-03 2.29E-02 1.76E-02 7.73E-02 0.00 Naphthalene 0.04 0.17 3.84E-02 1.68E-01 4.78E-06 2.10E-05 7.18E-07 3.14E-06 1.10E-02 4.81E-02 5.98E-06 2.62E-05 0.00 Toluene 0.14 0.61 1.39E-01 6.07E-01 2.67E-05 1.17E-04 4.00E-06 1.75E-05 3.96E-02 1.73E-01 3.33E-05 1.46E-04 0.00 POM 1.97E-06 8.61E-06 1.97E-06 8.61E-06 6.78E-07 2.97E-06 1.02E-07 4.45E-07 0.00E+00 0.00E+00 8.47E-07 3.71E-06 0.00 Arsensic 2.47 10.82 1.18E+01 5.15E+01 1.74E-02 7.63E-02 3.58E-03 1.57E-02 1.04E+01 4.57E+01 3.92E-07 1.72E-06 0.00 Beryllium 1.87 8.20 8.91E+00 3.90E+01 9.41E-08 4.12E-07 2.82E-07 1.24E-06 7.92E+00 3.47E+01 2.35E-08 1.03E-07 0.00 Cadmium 8.02E-05 3.51E-04 3.82E-04 1.67E-03 1.21E-05 5.29E-05 4.27E-05 1.87E-04 2.83E-04 1.24E-03 2.16E-06 9.45E-06 0.00 Chromium 1.24E-05 5.44E-05 5.92E-05 2.59E-04 1.10E-05 4.81E-05 3.29E-05 1.44E-04 6.22E-06 2.72E-05 2.75E-06 1.20E-05 0.00 Manganese 2.97E-06 1.30E-05 1.42E-05 6.20E-05 2.98E-06 1.31E-05 8.94E-06 3.92E-05 0.00E+00 0.00E+00 7.45E-07 3.26E-06 0.00 Mercury 6.29E-05 2.76E-04 6.29E-05 2.76E-04 2.04E-06 8.93E-06 6.12E-06 2.68E-05 4.55E-05 1.99E-04 2.55E-06 1.12E-05 0.00 Nickel 3.95E-05 1.73E-04 1.88E-04 8.24E-04 1.65E-05 7.21E-05 4.94E-05 2.16E-04 9.76E-05 4.28E-04 4.12E-06 1.80E-05 0.00 Selenium 1.88E-06 8.22E-06 8.94E-06 3.92E-05 1.88E-06 8.24E-06 5.65E-06 2.47E-05 0.00E+00 0.00E+00 4.71E-07 2.06E-06 0.00 Chlorine 2.59 11.36 2.59E+00 1.14E+01 0.33 1.44 1.60 7.01 3.60E-01 1.58E+00 1.85E-02 8.09E-02 0.04 Antimony 1.14 4.99 5.42E+00 2.38E+01 0.12 0.51 0.02 0.10 4.68E+00 2.05E+01 0.00E+00 0.00E+00 0.01 Total HAPs 10.42 45.64 1.71E+03 7.53E+03 213.68 935.90 1041.63 4562.34 2.58E+02 1.17E+03 8 35.04 26.71 Acetaldehyde 3.02E-02 1.32E-01 3.02E-02 1.32E-01 0.00 0.00 0.00 0.00 8.64E-03 3.78E-02 Acetophenone 6.05E-03 2.65E-02 6.05E-03 2.65E-02 0.00 0.00 0.00 0.00 1.73E-03 7.57E-03 Acrolein 1.13E-02 4.97E-02 1.13E-02 4.97E-02 0.00 0.00 0.00 0.00 3.24E-03 1.42E-02 Bis (2-ethylhexyl) phthalate (DEHP) 1.32E-02 5.79E-02 1.32E-02 5.79E-02 0.00 0.00 0.00 0.00 3.78E-03 1.66E-02 1,3-Butadiene 4.98E-01 2.18E+00 4.98E-01 2.18E+00 0.00 0.00 0.00 0.00 1.42E-01 6.23E-01 Biphenyl 2.02E-02 8.83E-02 2.02E-02 8.83E-02 0.00 0.00 0.00 0.00 5.76E-03 2.52E-02 Carbon disulfide 1.70E-01 7.45E-01 1.70E-01 7.45E-01 0.00 0.00 0.00 0.00 4.86E-02 2.13E-01 Chlorobenzene 4.60E-03 2.01E-02 4.60E-03 2.01E-02 0.00 0.00 0.00 0.00 1.31E-03 5.76E-03 Cumene 5.04E-03 2.21E-02 5.04E-03 2.21E-02 0.00 0.00 0.00 0.00 1.44E-03 6.31E-03 Ethylbenzene 4.22E-02 1.85E-01 4.22E-02 1.85E-01 0.00 0.00 0.00 0.00 1.21E-02 5.28E-02 Phenol 2.33E-02 1.02E-01 2.33E-02 1.02E-01 0.00 0.00 0.00 0.00 6.66E-03 2.92E-02 Styrene 2.71E-01 1.19E+00 2.71E-01 1.19E+00 0.00 0.00 0.00 0.00 7.74E-02 3.39E-01 Xylenes 3.15E-02 1.38E-01 3.15E-02 1.38E-01 0.00 0.00 0.00 0.00 9.00E-03 3.94E-02 Methylene chloride (Dichloromethane) 1.26E-01 5.52E-01 1.26E-01 5.52E-01 0.00 0.00 0.00 0.00 3.60E-02 1.58E-01 * Total VOC is assumed to the sum of the individual volatile HAPs
SV008 Emissions

ID 

Air Flow(dscfm)

PM IPER Concentration(gr/dscf)

PM IPER EmissionRates (lb/hr) 

PM IPEREmission Rates(tons/yr)

PM NSPS limit (gr/dscf)

PM10 permit limit 

(equal to PM limit) (gr/dscf)

SV 008 130,043 0.0388 43.24 189.37 NA NAID

Air Flow(dscfm)

SIP Lead Concentration(gr/dscf)

SIP Lead EmissionRates (lb/hr) 

SIP Allowable LeadEmission Rates(tons/yr)

NESHAP Lead Concentration (gr/dscf)

NESHAP Lead Cmpds EmissionRates (lb/hr) 

NESHAP Lead Cmpds EmissionRates (ton/yr) 

SV 008 130,043 0.00306 3.41 14.94 0.00087 0.97 4.25

Baghouse control efficiency: Particulate 99%

Particulate HAP 79%PM10 99%

PM2.5 99%

SV008 Emissions Total Controlled Total Uncontrolled EU002 FS001 (1/3)**

lb/hr tpy lb/hr tpy lb/hr tpy lb/hr 

PM (limit = 17.95 lb/hr) 0.60 2.64 6.04E+01 2.64E+02 1.50E+01 6.57E+01 4.54E+01 1.PM10 (assume same as PM limit) 0.40 1.75 4.01E+01 1.75E+02 1.50E+01 6.57E+01 2.51E+01 1.

PM2.5 (assume same as PM limit) 0.40 1.75 4.01E+01 1.75E+02 1.50E+01 6.57E+01 2.51E+01 1.

SO2 20.63 90.34 2.06E+01 9.03E+01 2.06E+01 9.

NOX 0.76 3.35 7.65E-01 3.35E+00 7.65E-01 3.

CO 2.82 12.35 2.82E+00 1.24E+01 2.82E+00 1.VOC * 0.38 1.67 8.45E-03 3.70E-02 8.45E-03 3.Lead (limit) 0.97 4.25 6.25E+01 2.74E+02 5.69E-01 2.49E+00 6.20E+01 2.Benzene 0.03 0.14 3.30E-02 1.45E-01 3.30E-02 1.Dichlorobenzene 1.57E-06 6.87E-06 1.57E-06 6.87E-06 1.57E-06 6.Formaldehyde 0.0019 0.0083 1.90E-03 8.31E-03 1.90E-03 8.Hexane 6.70E-03 2.94E-02 6.70E-03 2.94E-02 6.70E-03 2.Naphthalene 9.15E-03 4.01E-02 9.15E-03 4.01E-02 9.15E-03 4.Toluene 3.30E-02 1.45E-01 3.30E-02 1.45E-01 3.30E-02 1.POM 1.13E-07 4.95E-07 1.13E-07 4.95E-07 1.13E-07 4.Arsensic 0.09 0.40 4.36E-01 1.91E+00 4.36E-01 1.Beryllium 0.07 0.30 3.30E-01 1.45E+00 3.30E-01 1.Cadmium 2.95E-06 1.29E-05 1.41E-05 6.16E-05 1.41E-05 6.Chromium 4.39E-07 1.92E-06 2.09E-06 9.15E-06 2.09E-06 9.Manganese 1.04E-07 4.57E-07 4.97E-07 2.18E-06 4.97E-07 2.Mercury 2.24E-06 9.80E-06 2.24E-06 9.80E-06 2.24E-06 9.Nickel 1.43E-06 6.27E-06 6.81E-06 2.98E-05 6.81E-06 2.Selenium 6.59E-08 2.89E-07 3.14E-07 1.37E-06 3.14E-07 1.Chlorine 0.10 0.42 9.53E-02 4.18E-01 9.53E-02 4.Antimony 0.04 0.18 2.01E-01 8.80E-01 2.01E-01 8.
Total HAPs 1.65 7.23 6.34E+01 2.78E+02 6.34E+01 2.

Acetaldehyde 7.20E-03 3.15E-02 7.20E-03 3.15E-02 7.20E-03 3.Acetophenone 1.44E-03 6.31E-03 1.44E-03 6.31E-03 1.44E-03 6.Acrolein 2.70E-03 1.18E-02 2.70E-03 1.18E-02 2.70E-03 1.Bis (2-ethylhexyl) phthalate (DEHP) 3.15E-03 1.38E-02 3.15E-03 1.38E-02 3.15E-03 1.1,3-Butadiene 1.19E-01 5.19E-01 1.19E-01 5.19E-01 1.19E-01 5.Biphenyl 4.80E-03 2.10E-02 4.80E-03 2.10E-02 4.80E-03 2.Carbon disulfide 4.05E-02 1.77E-01 4.05E-02 1.77E-01 4.05E-02 1.Chlorobenzene 1.10E-03 4.80E-03 1.10E-03 4.80E-03 1.10E-03 4.Cumene 1.20E-03 5.26E-03 1.20E-03 5.26E-03 1.20E-03 5.Ethylbenzene 1.01E-02 4.40E-02 1.01E-02 4.40E-02 1.01E-02 4.Phenol 5.55E-03 2.43E-02 5.55E-03 2.43E-02 5.55E-03 2.Styrene 6.45E-02 2.83E-01 6.45E-02 2.83E-01 6.45E-02 2.Xylenes 7.50E-03 3.29E-02 7.50E-03 3.29E-02 7.50E-03 3.Methylene chloride (Dichloromethane) 3.00E-02 1.31E-01 3.00E-02 1.31E-01 3.00E-02 1.* Total VOC is assumed to the sum of the individual volatile HAPs** FS001, as shown on process flow diagram, is split among CE002, CE003, and CE008. Since only CE008 exhausts to SV008, 1/3 of the FS001 emissions are assumed to go out SV008
Minnesota Pollution Control Agency

Air Emissions Summary For Year 2008

Page 1 of 11

Gopher Resource LLC (Facility ID#: 03700016)

Unit# Unit Description Seg Seg Description SCC Pollutant Emission Calculation Throughput Units Control C

Factor Method Equipment 

(lb/unit) 

EU 004 West Reverberatory Fu 1 Smelting 30400402 Lead .0064 Stack test 788.40Hours of o Fabric Filter - High T 

Stack test 788.40 Fabric Filter - High T 

NOx .3000 AP-42/FIRE 690.00Tons of me 

AP-42/FIRE 690.00 

PM 11.3000 Stack test 788.40Hours of o Fabric Filter - High T 

Stack test 788.40 Fabric Filter - High T 

PM10 7.9000 Stack test 788.40Hours of o Fabric Filter - High T 

Stack test 788.40 Fabric Filter - High T 

SO2 .0000 CEM 690.00Tons of me 

CEM 690.00 

EU 004 West Reverberatory Fu 2 Natural gas 10200603 CO 84.0000 AP-42/FIRE .49Million cu 

AP-42/FIRE .49 

Lead .0064 Stack test .49Million cu Fabric Filter - High T 

Stack test .49 Fabric Filter - High T 

NOx 100.0000 AP-42/FIRE .49Million cu 

AP-42/FIRE .49 

PM 11.3000 Stack test .49Million cu Fabric Filter - High T 

Stack test .49 Fabric Filter - High T 

PM10 7.9000 Stack test .49Million cu Fabric Filter - High T 

Stack test .49 Fabric Filter - High T 

SO2 .0000 CEM .49Million cu 

CEM .49 

VOC 5.5000 AP-42/FIRE .49Million cu 

AP-42/FIRE .49 

EU 006 Scrap Dryer 1 Dryer 30400499 Lead .0000 AP-42/FIRE 251,920.00Tons proce Fabric Filter - High T 

AP-42/FIRE 251,920.00 Fabric Filter - High T 

EU 006 Scrap Dryer 2 Natural gas 10200603 CO 84.0000 AP-42/FIRE 4.20Million cu 

AP-42/FIRE 4.20 

NOx 100.0000 AP-42/FIRE 4.20Million cu 

AP-42/FIRE 4.20 

PM 7.6000 AP-42/FIRE 4.20Million cu Fabric Filter - High T 

AP-42/FIRE 4.20 Fabric Filter - High T 

PM10 7.6000 AP-42/FIRE 4.20Million cu Fabric Filter - High T 

AP-42/FIRE 4.20 Fabric Filter - High T 

SO2 .6000 AP-42/FIRE 4.20Million cu 

AP-42/FIRE 4.20 
Minnesota Pollution Control Agency

Air Emissions Summary For Year 2008

Page 2 of 11

Gopher Resource LLC (Facility ID#: 03700016)

VOC 5.5000 AP-42/FIRE 4.20Million cu 

AP-42/FIRE 4.20 

EU 007 East Reverberatory Fur 1 Smelting 30400402 Lead .0064 Stack test 1,270.20Hours of o Fabric Filter - High T 

Stack test 1,270.20 Stack test 1,270.20 Fabric Filter - High T 

NOx .3000 AP-42/FIRE 251,920.00Tons of me 

AP-42/FIRE 251,920.00 AP-42/FIRE 251,920.00 

PM 11.3000 Stack test 1,270.20Hours of o Fabric Filter - High T 

Stack test 1,270.20 Stack test 1,270.20 Fabric Filter - High T 

PM10 7.9000 Stack test 1,270.20Hours of o Fabric Filter - High T 

Stack test 1,270.20 Stack test 1,270.20 Fabric Filter - High T 

SO2 .0000 CEM 251,920.00Tons of me 

CEM 251,920.00 CEM 251,920.00 

EU 007 East Reverberatory Fur 2 Natural gas 10200603 CO 84.0000 AP-42/FIRE 142.00Million cu 

AP-42/FIRE 142.00 AP-42/FIRE 142.00 

Lead .0064 Stack test 142.00Million cu Fabric Filter - High T 

Stack test 142.00 Stack test 142.00 Fabric Filter - High T 

NOx 100.0000 AP-42/FIRE 142.00Million cu 

AP-42/FIRE 142.00 AP-42/FIRE 142.00 

PM 11.3000 Stack test 142.00Million cu Fabric Filter - High T 

Stack test 142.00 Stack test 142.00 Fabric Filter - High T 

PM10 7.9000 Stack test 142.00Million cu Fabric Filter - High T 

Stack test 142.00 Stack test 142.00 Fabric Filter - High T 

SO2 .0000 CEM 142.00Million cu 

CEM 142.00 CEM 142.00 

VOC 5.5000 AP-42/FIRE 142.00Million cu 

AP-42/FIRE 142.00 AP-42/FIRE 142.00 

EU 009 Blast Furnace 1 Smelting 30400403 CO 18.0000 AP-42/FIRE 38,721.00Tons of me 
Minnesota Pollution Control Agency

Air Emissions Summary For Year 2008

Page 3 of 11

Gopher Resource LLC (Facility ID#: 03700016)

AP-42/FIRE 38,721.00 AP-42/FIRE 38,721.00 

Lead .0064 Stack test 7,481.04Hours of o Fabric Filter - High T 

Stack test 7,481.04 Stack test 7,481.04 Fabric Filter - High T 

NOx .1000 AP-42/FIRE 38,721.00Tons of me 

AP-42/FIRE 38,721.00 AP-42/FIRE 38,721.00 

PM 11.3000 Stack test 7,481.04Hours of o Fabric Filter - High T 

Stack test 7,481.04 Stack test 7,481.04 Fabric Filter - High T 

PM10 7.9000 Stack test 7,481.04Hours of o Fabric Filter - High T 

Stack test 7,481.04 Stack test 7,481.04 Fabric Filter - High T 

SO2 .0000 CEM 38,721.00Tons of me 

CEM 38,721.00 CEM 38,721.00 

EU 009 Blast Furnace 2 Coke 10100801 CO .6000 AP-42/FIRE 3,293.00Tons burne 

AP-42/FIRE 3,293.00 AP-42/FIRE 3,293.00 

Lead .0064 Stack test 3,293.00Tons burne Fabric Filter - High T 

Stack test 3,293.00 Stack test 3,293.00 Fabric Filter - High T 

NOx 21.0000 AP-42/FIRE 3,293.00Tons burne 

AP-42/FIRE 3,293.00 AP-42/FIRE 3,293.00 

PM 11.3000 Stack test 3,293.00Tons burne Fabric Filter - High T 

Stack test 3,293.00 Stack test 3,293.00 Fabric Filter - High T 

PM10 7.9000 Stack test 3,293.00Tons burne Fabric Filter - High T 

Stack test 3,293.00 Stack test 3,293.00 Fabric Filter - High T 

SO2 .0000 CEM 3,293.00Tons burne 

CEM 3,293.00 CEM 3,293.00 

VOC .0700 AP-42/FIRE 3,293.00Tons burne 

AP-42/FIRE 3,293.00 AP-42/FIRE 3,293.00 

EU 011 Refining Kettle No. 1 1 Refining 30400426 Lead .0100 AP-42/FIRE 19,025.00Tons of me Fabric Filter - High T 
Minnesota Pollution Control Agency

Air Emissions Summary For Year 2008

Page 4 of 11

Gopher Resource LLC (Facility ID#: 03700016)

AP-42/FIRE 19,025.00 Fabric Filter - High T AP-42/FIRE 19,025.00 Fabric Filter - Low T 

PM .0300 AP-42/FIRE 19,025.00Tons of me Fabric Filter - High T 

AP-42/FIRE 19,025.00 Fabric Filter - High T AP-42/FIRE 19,025.00 Fabric Filter - Low T 

EU 011 Refining Kettle No. 1 2 Natural gas 10200603 CO 84.0000 AP-42/FIRE 6.12Million cu 

AP-42/FIRE 6.12 AP-42/FIRE 6.12 

NOx 100.0000 AP-42/FIRE 6.12Million cu 

AP-42/FIRE 6.12 AP-42/FIRE 6.12 

PM 7.6000 AP-42/FIRE 6.12Million cu Fabric Filter - High T 

AP-42/FIRE 6.12 Fabric Filter - High T AP-42/FIRE 6.12 Fabric Filter - Low T 

PM10 7.6000 AP-42/FIRE 6.12Million cu Fabric Filter - High T 

AP-42/FIRE 6.12 Fabric Filter - High T AP-42/FIRE 6.12 Fabric Filter - Low T 

SO2 .6000 AP-42/FIRE 6.12Million cu 

AP-42/FIRE 6.12 AP-42/FIRE 6.12 

VOC 5.5000 AP-42/FIRE 6.12Million cu 

AP-42/FIRE 6.12 AP-42/FIRE 6.12 

EU 012 Refining Kettle No. 2 1 Refining 30400426 Lead .0100 AP-42/FIRE 20,289.00Tons of me Fabric Filter - High T 

AP-42/FIRE 20,289.00 Fabric Filter - High T AP-42/FIRE 20,289.00 Fabric Filter - Low T 

PM .0300 AP-42/FIRE 20,289.00Tons of me Fabric Filter - High T 

AP-42/FIRE 20,289.00 Fabric Filter - High T AP-42/FIRE 20,289.00 Fabric Filter - Low T 

EU 012 Refining Kettle No. 2 2 Natural gas 10200603 CO 84.0000 AP-42/FIRE 6.33Million cu 

AP-42/FIRE 6.33 AP-42/FIRE 6.33 

NOx 100.0000 AP-42/FIRE 6.33Million cu 

AP-42/FIRE 6.33 AP-42/FIRE 6.33 

PM 7.6000 AP-42/FIRE 6.33Million cu Fabric Filter - High T 

AP-42/FIRE 6.33 Fabric Filter - High T AP-42/FIRE 6.33 Fabric Filter - Low T 

PM10 7.6000 AP-42/FIRE 6.33Million cu Fabric Filter - High T 
Minnesota Pollution Control Agency

Air Emissions Summary For Year 2008

Page 5 of 11

Gopher Resource LLC (Facility ID#: 03700016)

AP-42/FIRE 6.33 Fabric Filter - High T AP-42/FIRE 6.33 Fabric Filter - Low T 

SO2 .6000 AP-42/FIRE 6.33Million cu 

AP-42/FIRE 6.33 AP-42/FIRE 6.33 

VOC 5.5000 AP-42/FIRE 6.33Million cu 

AP-42/FIRE 6.33 AP-42/FIRE 6.33 

EU 013 Refining Kettle No. 3 1 Refining 30400426 Lead .0100 AP-42/FIRE 13,149.00Tons of me Fabric Filter - High T 

AP-42/FIRE 13,149.00 Fabric Filter - High T AP-42/FIRE 13,149.00 Fabric Filter - Low T 

PM .0300 AP-42/FIRE 13,149.00Tons of me Fabric Filter - High T 

AP-42/FIRE 13,149.00 Fabric Filter - High T AP-42/FIRE 13,149.00 Fabric Filter - Low T 

EU 013 Refining Kettle No. 3 2 Natural gas 10200603 CO 84.0000 AP-42/FIRE 4.05Million cu 

AP-42/FIRE 4.05 AP-42/FIRE 4.05 

NOx 100.0000 AP-42/FIRE 4.05Million cu 

AP-42/FIRE 4.05 AP-42/FIRE 4.05 

PM 7.6000 AP-42/FIRE 4.05Million cu Fabric Filter - High T 

AP-42/FIRE 4.05 Fabric Filter - High T AP-42/FIRE 4.05 Fabric Filter - Low T 

PM10 7.6000 AP-42/FIRE 4.05Million cu Fabric Filter - High T 

AP-42/FIRE 4.05 Fabric Filter - High T AP-42/FIRE 4.05 Fabric Filter - Low T 

SO2 .6000 AP-42/FIRE 4.05Million cu 

AP-42/FIRE 4.05 AP-42/FIRE 4.05 

VOC 5.5000 AP-42/FIRE 4.05Million cu 

AP-42/FIRE 4.05 AP-42/FIRE 4.05 

EU 014 Refining Kettle No. 4 1 Refining 30400426 Lead .0100 AP-42/FIRE 16,815.00Tons of me Fabric Filter - High T 

AP-42/FIRE 16,815.00 Fabric Filter - High T AP-42/FIRE 16,815.00 Fabric Filter - Low T 

PM .0300 AP-42/FIRE 16,815.00Tons of me Fabric Filter - High T 

AP-42/FIRE 16,815.00 Fabric Filter - High T AP-42/FIRE 16,815.00 Fabric Filter - Low T 

EU 014 Refining Kettle No. 4 2 Natural gas 10200603 CO 84.0000 AP-42/FIRE 5.31Million cu 
Minnesota Pollution Control Agency

Air Emissions Summary For Year 2008

Page 6 of 11

Gopher Resource LLC (Facility ID#: 03700016)

AP-42/FIRE 5.31 AP-42/FIRE 5.31 

NOx 100.0000 AP-42/FIRE 5.31Million cu 

AP-42/FIRE 5.31 AP-42/FIRE 5.31 

PM 7.6000 AP-42/FIRE 5.31Million cu Fabric Filter - High T 

AP-42/FIRE 5.31 Fabric Filter - High T AP-42/FIRE 5.31 Fabric Filter - Low T 

PM10 7.6000 AP-42/FIRE 5.31Million cu Fabric Filter - High T 

AP-42/FIRE 5.31 Fabric Filter - High T AP-42/FIRE 5.31 Fabric Filter - Low T 

SO2 .6000 AP-42/FIRE 5.31Million cu 

AP-42/FIRE 5.31 AP-42/FIRE 5.31 

VOC 5.5000 AP-42/FIRE 5.31Million cu 

AP-42/FIRE 5.31 AP-42/FIRE 5.31 

EU 015 Refining Kettle No. 5 1 Refining 30400426 Lead .0100 AP-42/FIRE 20,425.00Tons of me Fabric Filter - High T 

AP-42/FIRE 20,425.00 Fabric Filter - High T AP-42/FIRE 20,425.00 Fabric Filter - Low T 

PM .0300 AP-42/FIRE 20,425.00Tons of me Fabric Filter - High T 

AP-42/FIRE 20,425.00 Fabric Filter - High T AP-42/FIRE 20,425.00 Fabric Filter - Low T 

EU 015 Refining Kettle No. 5 2 Natural gas 10200603 CO 84.0000 AP-42/FIRE 6.45Million cu 

AP-42/FIRE 6.45 AP-42/FIRE 6.45 

NOx 100.0000 AP-42/FIRE 6.45Million cu 

AP-42/FIRE 6.45 AP-42/FIRE 6.45 

PM 7.6000 AP-42/FIRE 6.45Million cu Fabric Filter - High T 

AP-42/FIRE 6.45 Fabric Filter - High T AP-42/FIRE 6.45 Fabric Filter - Low T 

PM10 7.6000 AP-42/FIRE 6.45Million cu Fabric Filter - High T 

AP-42/FIRE 6.45 Fabric Filter - High T AP-42/FIRE 6.45 Fabric Filter - Low T 

SO2 .6000 AP-42/FIRE 6.45Million cu 

AP-42/FIRE 6.45 AP-42/FIRE 6.45 

VOC 5.5000 AP-42/FIRE 6.45Million cu 
Minnesota Pollution Control Agency

Air Emissions Summary For Year 2008

Page 7 of 11

Gopher Resource LLC (Facility ID#: 03700016)

AP-42/FIRE 6.45 AP-42/FIRE 6.45 

EU 016 Refining Kettle No. 6 1 Refining 30400426 Lead .0100 AP-42/FIRE 19,760.00Tons of me Fabric Filter - High T 

AP-42/FIRE 19,760.00 Fabric Filter - High T AP-42/FIRE 19,760.00 Fabric Filter - Low T 

PM .0300 AP-42/FIRE 19,760.00Tons of me Fabric Filter - High T 

AP-42/FIRE 19,760.00 Fabric Filter - High T AP-42/FIRE 19,760.00 Fabric Filter - Low T 

EU 016 Refining Kettle No. 6 2 Natural gas 10200603 CO 84.0000 AP-42/FIRE 6.24Million cu 

AP-42/FIRE 6.24 AP-42/FIRE 6.24 

NOx 100.0000 AP-42/FIRE 6.24Million cu 

AP-42/FIRE 6.24 AP-42/FIRE 6.24 

PM 7.6000 AP-42/FIRE 6.24Million cu Fabric Filter - High T 

AP-42/FIRE 6.24 Fabric Filter - High T AP-42/FIRE 6.24 Fabric Filter - Low T 

PM10 7.6000 AP-42/FIRE 6.24Million cu Fabric Filter - High T 

AP-42/FIRE 6.24 Fabric Filter - High T AP-42/FIRE 6.24 Fabric Filter - Low T 

SO2 .6000 AP-42/FIRE 6.24Million cu 

AP-42/FIRE 6.24 AP-42/FIRE 6.24 

VOC 5.5000 AP-42/FIRE 6.24Million cu 

AP-42/FIRE 6.24 AP-42/FIRE 6.24 

EU 017 Refining Kettle No. 7 1 Refining 30400426 Lead .0100 AP-42/FIRE 36,480.00Tons of me Fabric Filter - High T 

AP-42/FIRE 36,480.00 Fabric Filter - High T AP-42/FIRE 36,480.00 Fabric Filter - Low T 

PM .0300 AP-42/FIRE 36,480.00Tons of me Fabric Filter - High T 

AP-42/FIRE 36,480.00 Fabric Filter - High T AP-42/FIRE 36,480.00 Fabric Filter - Low T 

EU 017 Refining Kettle No. 7 2 Natural gas 10200603 CO 84.0000 AP-42/FIRE 15.36Million cu 

AP-42/FIRE 15.36 AP-42/FIRE 15.36 

NOx 100.0000 AP-42/FIRE 15.36Million cu 

AP-42/FIRE 15.36 AP-42/FIRE 15.36 

PM 7.6000 AP-42/FIRE 15.36Million cu Fabric Filter - High T 
Minnesota Pollution Control Agency

Air Emissions Summary For Year 2008

Page 8 of 11

Gopher Resource LLC (Facility ID#: 03700016)

AP-42/FIRE 15.36 Fabric Filter - High T AP-42/FIRE 15.36 Fabric Filter - Low T 

PM10 7.6000 AP-42/FIRE 15.36Million cu Fabric Filter - High T 

AP-42/FIRE 15.36 Fabric Filter - High T AP-42/FIRE 15.36 Fabric Filter - Low T 

SO2 .6000 AP-42/FIRE 15.36Million cu 

AP-42/FIRE 15.36 AP-42/FIRE 15.36 

VOC 5.5000 AP-42/FIRE 15.36Million cu 

AP-42/FIRE 15.36 AP-42/FIRE 15.36 

EU 018 Refining Kettle No. 8 1 Refining 30400426 Lead .0100 AP-42/FIRE 37,145.00Tons of me Fabric Filter - High T 

AP-42/FIRE 37,145.00 Fabric Filter - High T AP-42/FIRE 37,145.00 Fabric Filter - Low T 

PM .0300 AP-42/FIRE 37,145.00Tons of me Fabric Filter - High T 

AP-42/FIRE 37,145.00 Fabric Filter - High T AP-42/FIRE 37,145.00 Fabric Filter - Low T 

EU 018 Refining Kettle No. 8 2 Natural gas 10200603 CO 84.0000 AP-42/FIRE 15.64Million cu 

AP-42/FIRE 15.64 AP-42/FIRE 15.64 

NOx 100.0000 AP-42/FIRE 15.64Million cu 

AP-42/FIRE 15.64 AP-42/FIRE 15.64 

PM 7.6000 AP-42/FIRE 15.64Million cu Fabric Filter - High T 

AP-42/FIRE 15.64 Fabric Filter - High T AP-42/FIRE 15.64 Fabric Filter - Low T 

PM10 7.6000 AP-42/FIRE 15.64Million cu Fabric Filter - High T 

AP-42/FIRE 15.64 Fabric Filter - High T AP-42/FIRE 15.64 Fabric Filter - Low T 

SO2 .6000 AP-42/FIRE 15.64Million cu 

AP-42/FIRE 15.64 AP-42/FIRE 15.64 

VOC 5.5000 AP-42/FIRE 15.64Million cu 

AP-42/FIRE 15.64 AP-42/FIRE 15.64 

EU 019 Refining Kettle No. 9 1 Refining 30400426 Lead .0100 AP-42/FIRE 19,570.00Tons of me Fabric Filter - High T 

AP-42/FIRE 19,570.00 Fabric Filter - High T AP-42/FIRE 19,570.00 Fabric Filter - Low T 

PM .0300 AP-42/FIRE 19,570.00Tons of me Fabric Filter - High T 
Minnesota Pollution Control Agency

Air Emissions Summary For Year 2008

Page 9 of 11

Gopher Resource LLC (Facility ID#: 03700016)

AP-42/FIRE 19,570.00 Fabric Filter - High T AP-42/FIRE 19,570.00 Fabric Filter - Low T 

EU 019 Refining Kettle No. 9 2 Natural gas 10200603 CO 84.0000 AP-42/FIRE 8.24Million cu 

AP-42/FIRE 8.24 AP-42/FIRE 8.24 

NOx 100.0000 AP-42/FIRE 8.24Million cu 

AP-42/FIRE 8.24 AP-42/FIRE 8.24 

PM 7.6000 AP-42/FIRE 8.24Million cu Fabric Filter - High T 

AP-42/FIRE 8.24 Fabric Filter - High T AP-42/FIRE 8.24 Fabric Filter - Low T 

PM10 7.6000 AP-42/FIRE 8.24Million cu Fabric Filter - High T 

AP-42/FIRE 8.24 Fabric Filter - High T AP-42/FIRE 8.24 Fabric Filter - Low T 

SO2 .6000 AP-42/FIRE 8.24Million cu 

AP-42/FIRE 8.24 AP-42/FIRE 8.24 

VOC 5.5000 AP-42/FIRE 8.24Million cu 

AP-42/FIRE 8.24 AP-42/FIRE 8.24 

EU 020 Refining Kettle No. 10 1 Refining 30400426 Lead .0100 AP-42/FIRE .00Tons of me Fabric Filter - High T 

AP-42/FIRE .00 Fabric Filter - High T AP-42/FIRE .00 Fabric Filter - Low T 

PM .0300 AP-42/FIRE .00Tons of me Fabric Filter - High T 

AP-42/FIRE .00 Fabric Filter - High T AP-42/FIRE .00 Fabric Filter - Low T 

EU 020 Refining Kettle No. 10 2 Natural gas 10200603 CO 84.0000 AP-42/FIRE .00Million cu 

AP-42/FIRE .00 AP-42/FIRE .00 

NOx 100.0000 AP-42/FIRE .00Million cu 

AP-42/FIRE .00 AP-42/FIRE .00 

PM 7.6000 AP-42/FIRE .00Million cu Fabric Filter - High T 

AP-42/FIRE .00 Fabric Filter - High T AP-42/FIRE .00 Fabric Filter - Low T 

PM10 7.6000 AP-42/FIRE .00Million cu Fabric Filter - High T 

AP-42/FIRE .00 Fabric Filter - High T AP-42/FIRE .00 Fabric Filter - Low T 

SO2 .6000 AP-42/FIRE .00Million cu 
Minnesota Pollution Control Agency

Air Emissions Summary For Year 2008

Page 10 of 11

Gopher Resource LLC (Facility ID#: 03700016)

AP-42/FIRE .00 AP-42/FIRE .00 

VOC 5.5000 AP-42/FIRE .00Million cu 

AP-42/FIRE .00 AP-42/FIRE .00 

EU 022 Casting 1 Casting 30400425 Lead .0000 Other 130,694.00Tons of me 

PM .0000 Other 130,694.00Tons of me 

PM10 .0000 Other 130,694.00Tons of me 

EU 023 Diesel-Powered Electric 1 Diesel 20200102 CO 130.0000 AP-42/FIRE 10.051000 gallo 

NOx 604.0000 AP-42/FIRE 10.051000 gallo 

PM 42.5000 AP-42/FIRE 10.051000 gallo 

PM10 42.5000 AP-42/FIRE 10.051000 gallo 

SO2 .0000 Other 10.051000 gallo 

VOC 49.3000 AP-42/FIRE 10.051000 gallo 

EU 024 Diesel-Powered Electric 1 Diesel 20200102 CO 130.0000 AP-42/FIRE 10.051000 gallo 

NOx 604.0000 AP-42/FIRE 10.051000 gallo 

PM 42.5000 AP-42/FIRE 10.051000 gallo 

PM10 42.5000 AP-42/FIRE 10.051000 gallo 

SO2 .0000 Other 10.051000 gallo 

VOC 49.3000 AP-42/FIRE 10.051000 gallo 

FS 001 Furnace Area 1 Smelting fugitives 30400413 Lead .0240 Stack test 8,760.00Hours of o 

PM 4.4000 Stack test 8,760.00Hours of o 

PM10 5.0000 Stack test 8,760.00Hours of o 

FS 002 West Reverberatory Fu 1 Smelting fugitives 30400413 Lead .0110 Stack test 788.40Hours of o Fabric Filter - Low T 

Stack test 788.40 Fabric Filter - Low T 

PM 4.4000 Stack test 788.40Hours of o Fabric Filter - Low T 

Stack test 788.40 Fabric Filter - Low T 

PM10 5.0000 Stack test 788.40Hours of o Fabric Filter - Low T 

Stack test 788.40 Fabric Filter - Low T 

FS 003 East Reverberatory Fur 1 Smelting fugitives 30400413 Lead .0110 Stack test 1,270.00Hours of o Fabric Filter - Low T 

Stack test 1,270.00 Stack test 1,270.00 Fabric Filter - Low T 

PM 4.4000 Stack test 1,270.00Hours of o Fabric Filter - Low T 

Stack test 1,270.00 Stack test 1,270.00 Fabric Filter - Low T 

PM10 5.0000 Stack test 1,270.00Hours of o Fabric Filter - Low T 

Stack test 1,270.00 Stack test 1,270.00 Fabric Filter - Low T 

FS 004 Blast Furnace 1 Smelting fugitives 30400413 Lead .0110 Stack test 7,481.00Hours of o Fabric Filter - Low T 
Minnesota Pollution Control Agency

Air Emissions Summary For Year 2008

Page 11 of 11

Gopher Resource LLC (Facility ID#: 03700016)

Stack test 7,481.00 Stack test 7,481.00 Fabric Filter - Low T 

PM 4.4000 Stack test 7,481.00Hours of o Fabric Filter - Low T 

Stack test 7,481.00 Stack test 7,481.00 Fabric Filter - Low T 

PM10 5.0000 Stack test 7,481.00Hours of o Fabric Filter - Low T 

Stack test 7,481.00 Stack test 7,481.00 Fabric Filter - Low T 

FS 005 Casting 1 Casting fugitives 30488801 Lead .0110 Stack test 8,760.00Hours of o 

PM 4.4000 Stack test 8,760.00Hours of o 

PM10 5.0000 Stack test 8,760.00Hours of o 

Total CO 360.04 

NOx 91.50 

Pb .36 

PM10 77.51 

PM 64.89 

SO2 1,683.06 

VOC 1.22 

Billable 1,853.64 
Attachment 4 

Facility Description & CD-01 

Forms 
MINNESOTA POLLUTION CONTROL AGENCY

AIR QUALITY520 LAFAYETTE ROADST. PAUL, MN 55155-4194

Show: Active and Pending RecordsAction: PER 003AQD Facility ID: 03700016Facility Name: Gopher Resource LLC

FACILITY DESCR

ID No. 

Exit 

Tempe

at T

(oF

Design

Flow Rate

at Top

(ACFM)

Width

(feet)

Diameter

or Length

(feet)

Height of Inside Dimensions

Opening

From

Ground

(feet)

Added

By

(Action)

Retired

By

(Action)

Operator

ID

for Item

Stack/ Operators Description

Vent

Status

1 SV 001 Active PER 001 Raw Material Processing 50.0 3.0 15000 2 SV 001 Active PER 003 Raw Material Processing (CE001) 50.0 3.0 15000 3 SV 002 PER 001 Fugitive Emissions from Raw Material Handling, Blast Furnace 80.0 8.0 166000 

and Reverb Furnace Areas

Active

4 SV 002 Active PER 003 SIP Source 3 (CE003 and CE002) 80.0 8.0 166000 5 SV 003 Active PER 001 Main Stack 199.0 6.00 119000 6 SV 003 Active PER 003 Main Stack (CE004, CE005) (SIP Source 1) 199.0 6.00 119000 7 SV 004 Active PER 001 Soda Ash Storage Bin 81.8 1.00 1500 8 SV 005 Active PER 001 Casting9 SV 005 Retired PER 003 Casting

10 SV 006 Active PER 001 Diesel Electrical Generator 18 1.33 15,800 11 SV 006 Active PER 003 Diesel Electrical Generator 18 1.33 15,800 12 SV 007 Active PER 001 Diesel Electrical Generator 18 1.33 15,800 13 SV 007 Active PER 003 Diesel Electrical Generator 18 1.33 15,800 14 SV 008 Active PER 003 006 Fugitive Emission Collection 80 7 133000 15 SV 009 Active PER 003 Refining kettle combustion exhaust 1 1.6 1545 16 SV 010 Active PER 003 Refining kettle combustion exhaust 2 1.6 1545 17 SV 011 Active PER 003 Refining kettle combustion exhaust 3 1.6 1545 18 SV 012 Active PER 003 Refining kettle combustion exhaust 4 1.6 1545 19 SV 013 Active PER 003 Refining kettle combustion exhaust 5 1.6 1545 20 SV 014 Active PER 003 Refining kettle combustion exhaust 6 1.6 1545 21 SV 015 Active PER 003 Refining kettle combustion exhaust 7 1.6 1545 22 SV 016 Active PER 003 Refining kettle combustion exhaust 8 1.6 1545 23 SV 017 Active PER 003 Refining kettle combustion exhaust 9 1.6 1545 24 SV 018 Active PER 003 Future refining kettle combustion 10
MINNESOTA POLLUTION CONTROL AGENCY

AIR QUALITY520 LAFAYETTE ROADST. PAUL, MN 55155-4194

Show: Active and Pending RecordsAction: PER 003AQD Facility ID: 03700016Facility Name: Gopher Resource LLC

FACILITY DESCRIPTION: C

ID No. Added

By

(Action)

Retired

By

(Action)

Operator

ID

for Item

Control

Equip.

Type

Control Control Equipment Description Model

Equip.Status

Manufacturer Poll

Con

1 CE 001 Active EIS 001 001 Wet Scrubber - High Efficiency w/Lime Slurry Tri-Mer Corp. F/S-8 PM10

PM

2 CE 001 Active PER 003 912 Wet Scrubber-High Efficiency Tri-Mer Corp. F/S-8 PM2.5

PM10PM

3 CE 002 EIS 001 018 Fabric Filter - Low Temperature, i.e., T<180 Degrees F Torit Downflow Model

4DF320

Active Donaldson Co., Inc. Lead

PM10PM

4 CE 002 PER 003 018 Fabric Filter - Low Temperature, i.e., T<180 Degrees F Torit Downflow Model

4DF320

Active Donaldson Co., Inc. PM2.5

LeadLeadPM10PM

5 CE 003 PER 001 018 Fabric Filter - Low Temperature, i.e., T<180 Degrees F Torit Downflow Model

4DF160

Active Donaldson Co., Inc. Lead

PM10PM

6 CE 003 PER 003 018 Fabric Filter - Low Temperature, i.e., T<180 Degrees F Torit Downflow Model

4DF160

Active Donaldson Co., Inc. PM2.5

LeadLeadPM10PM

7 CE 004 Active PER 001 016 Fabric Filter - High Temperature, i.e., T>250 Degrees F Wheelabrator 480 Lead

PM10PM

8 CE 004 Active PER 003 016 Fabric Filter - High Temperature, i.e., T>250 Degrees F Wheelabrator 480 PM2.5

LeadLeadPM10PM10PMPM

9 CE 005 Active PER 001 016 Fabric Filter - High Temperature, i.e., T>250 Degrees F Wheelabrator 480 Lead

PM10PM

10 CE 005 Active PER 003 016 Fabric Filter - High Temperature, i.e., T>250 Degrees F Wheelabrator 480 PM2.5

LeadLeadPM10PM10PMPM

11 CE 006 Active EIS 001 018 Fabric Filter - Low Temperature, i.e., T<180 Degrees F Whirl-Air-Flow 330-56 PM10

PM
MINNESOTA POLLUTION CONTROL AGENCY

AIR QUALITY520 LAFAYETTE ROADST. PAUL, MN 55155-4194

Show: Active and Pending RecordsAction: PER 003AQD Facility ID: 03700016Facility Name: Gopher Resource LLC

FACILITY DESCRIPTION: C

ID No. Added

By

(Action)

Retired

By

(Action)

Operator

ID

for Item

Control

Equip.

Type

Control Control Equipment Description Model

Equip.Status

Manufacturer Poll

Con

12 CE 006 Active PER 003 018 Fabric Filter - Low Temperature, i.e., T<180 Degrees F Whirl-Air-Flow 330-56 PM2.5

PM10PM

13 CE 007 Active PER 001 099 Afterburner Gopher Resource Gopher Resource CO

TotHydC

14 CE 007 Active PER 003 099 Afterburner Gopher Resource Gopher Resource CO

TotHydCVOC

15 CE 008 Active PER 003 018 Fabric Filter - Low Temperature, i.e., T<180 Degrees F Donaldson DFT4-192 PM2.5

LeadPM10PM

16 CE 009 Active PER 003 018 Fabric Filter - Low Temperature, i.e., T<180 Degrees F Donaldson DFT4-192 PM2.5

LeadPM10PM

17 CE 010 Active PER 003 206 Dry Sorbent Injection SO2 
ST. PAUL, MN 55155-4194

Show: Active and Pending RecordsAction: PER 003AQD Facility ID: 03700016Facility Name:

MINNESOTA POLLUTION CONTROL AGENCYAIR QUALITY520 LAFAYETTE ROAD

FACILITY DESCRIP

Gopher Resource LLC

Retired

By

(Action)

ID No. Emission Operator Description

Unit

Status

Added

By

(Action)

Control

Equip.

ID No(s).

Stack/

Vent

ID No(s).

Operator

ID

for Item

Insignificant

Activity

Manufacturer Model SIC

Number

D

C

1 Raw Material Processing

Operation

EU 001 Active PER 001 SV 001 (M) CE 001 Gopher Resources 3341 

2 Raw Material Processing

Operation

EU 001 Active PER 003 SV 001 (M) CE 001 Gopher Resources NA 3341 

3 Raw Material Handling

Operation

EU 002 Active EIS 007 SV 002 (M) CE 002 Gopher Resource 3341 

4 Raw Material Handling

Operation

EU 002 Active PER 003 CE 008

CE 009

SV 008 (M) Gopher Resource NA 3341 

5 EU 004 Active EIS 002 CE 004 West Reverberatory Furnace 

CE 005

SV 003 (M) Gopher Resource Corp 3341 

6 EU 004 Active PER 003 CE 004 West Reverberatory Furnace 

CE 005

SV 003 (M) Gopher Resource Corp NA 3341 

7 EU 006 Active PER 001 CE 004 Scrap Dryer 

CE 005

SV 003 (M) Gopher Resource Corp 3341 

8 EU 006 Active PER 003 SV 003 (M) CE 005 Scrap Dryer Gopher Resource Corp NA 3341 9 EU 007 Active PER 002 CE 004 East Reverberatory Furnace 

CE 005CE 007

SV 003 (M) Gopher Resource Corp 3341 

10 EU 007 Active PER 003 CE 004 East Reverberatory Furnace 

CE 005CE 007CE 010

SV 003 (M) Gopher Resource Corp NA 3341 

11 EU 009 Active PER 002 CE 004 Blast Furnace 

CE 005CE 007

SV 003 (M) Gopher Resource Corp 3341 

12 EU 009 Active PER 003 CE 004 Blast Furnace 

CE 005CE 007CE 010

SV 003 (M) Gopher Resource Corp NA 3341 

13 EU 011 Active EIS 001 CE 003 Refining Kettle No. 1 

CE 004CE 005

SV 002 (B)SV 003 (M)

Gopher Resource Corp 3341 

14 EU 011 Active PER 003 SV 003 (M) CE 004 Refining Kettle No. 1 

SV 009 (M)

Gopher Resource Corp NA 3341 

15 EU 012 Active EIS 001 CE 003 Refining Kettle No. 2 

CE 004CE 005

SV 002 (B)SV 003 (M)

Gopher Resource Corp 3341 

16 EU 012 Active PER 003 SV 003 (M) CE 004 Refining Kettle No. 2 

SV 010 (M)

Gopher Resource Corp NA 3341 

17 EU 013 Active EIS 001 CE 003 Refining Kettle No. 3 

CE 004CE 005

SV 002 (B)SV 003 (M)

Gopher Resource Corp 3341 
5 February, 2010 15:54

FACILITY DESCRIPTION: EMISSION UNIT (EU)

ID No. Eleva

Typ

Pct. Bottleneck

Fuel/

Space

Heat

Added Firing Method

By

(Action)

Removal

Date

Initial

Startup

Date

Commence

Const.

Date

Emission

Unit

Status

1 EU 001 Active PER 001 12/31/1961 12/31/19612 EU 001 Active PER 003 12/31/1961 12/31/19613 EU 002 Active EIS 007 12/31/1961 12/31/19614 EU 002 Active PER 003 12/31/1961 12/31/19615 EU 004 Active EIS 002 12/31/1961 12/31/19616 EU 004 Active PER 003 12/31/1961 12/31/19617 EU 006 Active PER 001 12/31/1994 12/31/19948 EU 006 Active PER 003 12/31/1994 12/31/19949 EU 007 Active PER 002 12/31/1965 12/31/1965

10 EU 007 Active PER 003 12/31/1965 12/31/196511 EU 009 Active PER 002 12/31/1955 12/31/195512 EU 009 Active PER 003 12/31/1955 12/31/195513 EU 011 Active EIS 001 12/31/1955 12/31/195514 EU 011 Active PER 003 12/31/1955 12/31/195515 EU 012 Active EIS 001 12/31/1955 12/31/195516 EU 012 Active PER 003 12/31/1955 12/31/195517 EU 013 Active EIS 001 12/31/1955 12/31/1955

Page 1 of 3 (b)
ST. PAUL, MN 55155-4194

Show: Active and Pending RecordsAction: PER 003AQD Facility ID: 03700016Facility Name:

MINNESOTA POLLUTION CONTROL AGENCYAIR QUALITY520 LAFAYETTE ROAD

FACILITY DESCRIP

Gopher Resource LLC

Retired

By

(Action)

ID No. Emission Operator Description

Unit

Status

Added

By

(Action)

Control

Equip.

ID No(s).

Stack/

Vent

ID No(s).

Operator

ID

for Item

Insignificant

Activity

Manufacturer Model SIC

Number

D

C

18 EU 013 Active PER 003 SV 003 (M) CE 004 Refining Kettle No. 3 

SV 011 (M)

Gopher Resource Corp NA 3341 

19 EU 014 Active EIS 001 CE 003 Refining Kettle No. 4 

CE 004CE 005

SV 002 (B)SV 003 (M)

Gopher Resource Corp 3341 

20 EU 014 Active PER 003 SV 003 (M) CE 004 Refining Kettle No. 4 

SV 012 (M)

Gopher Resource Corp NA 3341 

21 EU 015 Active EIS 001 CE 003 Refining Kettle No. 5 

CE 004CE 005

SV 002 (B)SV 003 (M)

Gopher Resource Corp 3341 

22 EU 015 Active PER 003 SV 003 (M) CE 004 Refining Kettle No. 5 

SV 013 (M)

Gopher Resource Corp NA 3341 

23 EU 016 Active EIS 001 CE 003 Refining Kettle No. 6 

CE 004CE 005

SV 002 (B)SV 003 (M)

Gopher Resource Corp 3341 

24 EU 016 Active PER 003 SV 003 (M) CE 004 Refining Kettle No. 6 

SV 014 (M)

Gopher Resource Corp NA 3341 

25 EU 017 Active EIS 001 CE 003 Refining Kettle No. 7 

CE 004CE 005

SV 002 (B)SV 003 (M)

Gopher Resource Corp 3341 

26 EU 017 Active PER 003 SV 003 (M) CE 004 Refining Kettle No. 7 

SV 015 (M)

Gopher Resource Corp NA 3341 

27 EU 018 Active EIS 001 CE 003 Refining Kettle No. 8 

CE 004CE 005

SV 002 (B)SV 003 (M)

Gopher Resource Corp 3341 

28 EU 018 Active PER 003 SV 003 (M) CE 004 Refining Kettle No. 8 

SV 016 (M)

Gopher Resource Corp NA 3341 

29 EU 019 Active EIS 001 CE 003 Refining Kettle No. 9 

CE 004CE 005

SV 002 (B)SV 003 (M)

Gopher Resource Corp 3341 

30 EU 019 Active PER 003 SV 003 (M) CE 004 Refining Kettle No. 9 

SV 017 (M)

Gopher Resource Corp NA 3341 

31 EU 020 Active EIS 001 CE 003 Refining Kettle No. 10 

CE 004CE 005

SV 002 (B)SV 003 (M)

Gopher Resource Corp 3341 

32 EU 020 Active PER 003 SV 003 (M) CE 004 Refining Kettle No. 10 

SV 018 (M)

Gopher Resource Corp NA 3341 

33 EU 021 Active EIS 001 SV 004 (M) CE 006 Soda Ash Storage Bin Imperial Calument Ind. 60-65-12-72 3341 34 EU 022 Active EIS 002 SV 005 (M) Casting 3341 35 Casting - this is duplicate of

FS005

EU 022 Retired PER 003 3341 
5 February, 2010 15:54

FACILITY DESCRIPTION: EMISSION UNIT (EU)

ID No. Eleva

Typ

Pct. Bottleneck

Fuel/

Space

Heat

Added Firing Method

By

(Action)

Removal

Date

Initial

Startup

Date

Commence

Const.

Date

Emission

Unit

Status

18 EU 013 Active PER 003 12/31/1955 12/31/195519 EU 014 Active EIS 001 12/31/1955 12/31/195520 EU 014 Active PER 003 12/31/1955 12/31/195521 EU 015 Active EIS 001 12/31/1955 12/31/195522 EU 015 Active PER 003 12/31/1955 12/31/195523 EU 016 Active EIS 001 12/31/1955 12/31/195524 EU 016 Active PER 003 12/31/1955 12/31/195525 EU 017 Active EIS 001 12/31/1994 12/31/199426 EU 017 Active PER 003 12/31/1994 12/31/199427 EU 018 Active EIS 001 12/31/1994 12/31/199428 EU 018 Active PER 003 12/31/1994 12/31/199429 EU 019 Active EIS 00130 EU 019 Active PER 003 01/02/2003 02/01/200331 EU 020 Active EIS 00132 EU 020 Active PER 00333 EU 021 Active EIS 001 12/31/1992 12/31/199234 EU 022 Active EIS 00235 EU 022 Retired PER 003 01/01/2009

Page 2 of 3 (b)
ST. PAUL, MN 55155-4194

Show: Active and Pending RecordsAction: PER 003AQD Facility ID: 03700016Facility Name:

MINNESOTA POLLUTION CONTROL AGENCYAIR QUALITY520 LAFAYETTE ROAD

FACILITY DESCRIP

Gopher Resource LLC

Retired

By

(Action)

ID No. Emission Operator Description

Unit

Status

Added

By

(Action)

Control

Equip.

ID No(s).

Stack/

Vent

ID No(s).

Operator

ID

for Item

Insignificant

Activity

Manufacturer Model SIC

Number

D

C

36 Diesel-Powered Electrical 

Generator

EU 023 Active PER 001 SV 006 (M) Caterpillar 3516B 3341 

37 Diesel-Powered Electrical 

Generator

EU 023 Active PER 003 SV 006 (M) Caterpillar 3516B 3341 

38 Diesel-Powered Electrical 

Generator

EU 024 Active PER 001 SV 007 (M) Caterpillar 3516B 3341 

39 Diesel-Powered Electrical 

Generator

EU 024 Active PER 003 SV 007 (M) Caterpillar 3516B 3341 

40 EU 025 Active PER 003 SV 003 (M) Thermal Oxidizer (aka CE007) 3341
5 February, 2010 15:54

FACILITY DESCRIPTION: EMISSION UNIT (EU)

ID No. Eleva

Typ

Pct. Bottleneck

Fuel/

Space

Heat

Added Firing Method

By

(Action)

Removal

Date

Initial

Startup

Date

Commence

Const.

Date

Emission

Unit

Status

36 EU 023 Active PER 001 06/01/2002 11/01/200237 EU 023 Active PER 003 06/01/2002 11/01/200238 EU 024 Active PER 001 06/01/200239 EU 024 Active PER 003 06/01/2002 11/01/200240 EU 025 Active PER 003

Page 3 of 3 (b)
MINNESOTA POLLUTION CONTROL AGENCY

AIR QUALITY520 LAFAYETTE ROADST. PAUL, MN 55155-4194

Show: Active and Pending RecordsAction: PER 003AQD Facility ID: 03700016Facility Name: Gopher Resource LLC

FACILITY DESCRIPTIO

ID No. Fugitive Source Description 

Added

By

(Action)

Retired

By

(Action)

Insignificant

Activity

Operator

ID

for Item

Pollutant(s)

Emitted

Control

Equip.

ID No(s).

Fugitive

Source

Status

1 FS 001 EIS 002 PM10 

PMLead

Active Furnace Area

2 FS 001 PER 003 PM10 

PMLeadPM2.5

CE 002CE 003CE 008

Active Furnace Area Process Fugitives

3 FS 002 PER 001 Lead 

PMPM10

CE 002CE 003

Active West Reverberatory Furnace

4 FS 002 PER 003 Lead 

PMPM10PM2.5

Active CE 005 West Reverberatory Furnace Process Fugitives

5 FS 003 PER 001 PM10 

PMLead

CE 002CE 003CE 007

Active East Reverberatory Furnace

6 FS 003 PER 003 PM10 

PMLeadPM2.5

CE 004CE 005

Active East Reverberatory Furnace Process Fugitives

7 FS 004 PER 001 Lead 

PMPM10

CE 002CE 003CE 007

Active Blast Furnace

8 FS 004 PER 003 Lead 

PMPM10PM2.5

Active CE 004 Blast Furnace Process Fugitives

9 FS 005 PER 001 PM

LeadPM10

Active Casting

10 FS 005 PER 003 PM

LeadPM10PM2.5

Active CE 002 Casting Machine Process Fugitives

11 FS 006 PER 001 PM

LeadPM10

Active Fugitive Dust Sources

12 FS 006 PER 003 PM

LeadPM10PM2.5

Active CE 002 Refining Area Fugitive Dust Sources
MINNESOTA POLLUTION CONTROL AGENCY

AIR QUALITY520 LAFAYETTE ROADST. PAUL, MN 55155-4194

Show:Action:AQD Facility ID:Facility Name:

Active and Pending RecordsPER 00303700016Gopher Resource LLC

FACILITY D

ID No. Added

By

(Action)

Retired

By

(Action)

Include

in EI

Operator

ID

for Item

Group Group Description 

Status

1 GP 001 Active PER 001 East Reverberatory and Blast Furnace subject to NESHAPs, subp. X CE 004, CE 005, CE 007, EU 02 GP 001 Active PER 003 Process Sources under NESHAP Subpart X EU 004, EU 007, EU 0093 GP 002 Active PER 001 Process Fugitive Sources subject to NESHAPs, subp. X CE 002, CE 003, FS 001, FS 04 GP 002 PER 003 Process Fugitive Sources under NESHAP Subpart X EU 006, EU 011, EU 012, EU 0

EU 019, EU 020, FS 001, FS 0

Active

5 GP 003 Active PER 001 Fugitive Sources subject to SIP Conditions CE 002, CE 003, FS 002, FS 06 GP 003 Active PER 003 Fugitive Dust Sources under NESHAP Subpart X EU 001, EU 002, FS 0067 GP 004 Active PER 001 Control Equipment for the Process and Fugitive Sources CE 002, CE 003, CE 004, CE 08 GP 004 Active PER 003 NESHAP Subpart X Control Equipment Monitoring Requirements CE 002, CE 003, CE 004, CE 09 GP 005 Active PER 001 Emergency Diesel Generators EU 023, EU 024, SV 006, SV 0

10 GP 006 Active PER 003 Furnaces Subject to NSPS Subpart L EU 007, EU 00911 GP 007 Active PER 003 Torit Stacks SV 002, SV 00812 GP 008 Active PER 003 Torit Filter Banks CE 002, CE 003, CE 008, CE 0
MINNESOTA POLLUTION CONTROL AGENCY

AIR QUALITY520 LAFAYETTE ROADST. PAUL, MN 55155-4194

Show: Active and Pending RecordsAction: PER 003AQD Facility ID: 03700016Facility Name: Gopher Resource LLC

FACILITY DESCRIPTION: CON

ID No. Operator Manufacturer Model Number

ID

for Item

Monitored

Item

(ID No(s).)

Retired

By

(Action)

Added

By

(Action)

Monitor Monitor Description

Status

1 MR 001 A PER 003 SV 003 SO2 CEMS Lear Siegler SM8100A 032

ctive
5 February, 2010 15:54

FACILITY DESCRIPTION: CONTINUOUS MONITORS (MR)

ID No. Added

By

(Action)

Span

Value

System

FullScale

Value

Bypass

Capability?

Removal

Date

Installation

Date

Optical

Path

Length

Ratio

Monitor

Status

1 MR 001 PER 003 Active

Page 1 of 1 (b)
MINNESOTA POLLUTION CONTROL AGENCY

AIR QUALITY520 LAFAYETTE ROADST. PAUL, MN 55155-4194

Show: Active and Pending RecordsAction: PER 003AQD Facility ID: 03700016Facility Name: Gopher Resource LLC

5 February, 2010 15:54 

FACILITY DESCRIPTION: CONTINUOUS MO

ID No. Added

By

(Action)

Retired

By

(Action)

Monitor

ID No(s).

DAS

ID No(s).

Operator

ID

for Item

CMS Description Parameter 

CMS

Status

1 CM 001 Active PER 003 MR 001 SO2 monitoring system Sulfur Dioxide 
MINNESOTA POLLUTION CONTROL AGENCY

AIR QUALITY

520 LAFAYETTE ROAD

ST. PAUL, MN 55155-4194 COMPLIANCE PLAN CD-01

Facility Name: Gopher Resource LLC

Permit Number: 03700016 - 003

Page 1 of 39 11 May, 2010 12:41

Subject Item: Total Facility

NC/

CA

Type Citation Requirement

1.0 CD hdr STATE IMPLEMENTATION PLAN (SIP) REQUIREMENTS

CD Title I Condition: State

Implementation Plan (SIP) for

Lead NAAQS; 40 CFR pt. 50; 40

CFR pt. 51; 40 CFR pt. 52, subp.

Y; MN SIP

For any changes that affect any modeled parameter or lead emission rate

documented in Appendix B, the Permittee shall demonstrate that the lead

dispersion characteristics following the change will be equivalent to or better than

the lead dispersion characteristics modeled using the parameters in Appendix B.

The information submitted must include stacks, locations and dimensions of nearby

buildings, the velocity and temperature of the gasses emitted, and the lead

emission rates. If the information does not demonstrate equivalent or better

dispersion characteristics, or if such a conclusion cannot be readily made, the

Permittee must remodel. Any increase in lead emissions beyond modeled

conditions associated with emission units in the SIP shall also be modeled.

Modeling shall be conducted at the new predicted lead emission rates and stack

parameters to determine the impact on the lead NAAQS. This requirement applies

whether or not a permit amendment is required for the proposed change.

2.0

CD Title I Condition: State

Implementation Plan (SIP) for

Lead NAAQS; 40 CFR pt. 50; 40

CFR pt. 51; 40 CFR pt. 52, subp.

Y; MN SIP

ACTIVITIES NOT REQUIRING A MODIFICATION OF THE SIP:

The Permittee may make changes to the facility without obtaining a modification as

long as the change does not do or result in any of the following:

A. an exceedance of the limitations associated with the emission units in the SIP;

B. a physical change of the equipment that affects the stack parameters described

in Appendix B; or

C. an increase of a maximum potential lead emission rate by less than or equal to

0.025 pound per hour for any installation, modification, or operation of lead process

or control equipment.

The Permittee may replace, install and operate additional CEMs and CMS, so long

as the new or replaced CEMs and CMSs are properly certified and comply with

Minn. R. 7017.1002 - 1220.

3.0

CD Title I Condition: State

Implementation Plan (SIP) for

Lead NAAQS; 40 CFR pt. 50; 40

CFR pt. 51; 40 CFR pt. 52, subp.

Y; MN SIP

ACTIVITIES REQUIRING A MODIFICATION OF THE SIP:

A. any modification to the design of the equipment that decreases the stack gas

volumetric flow rate below that contained in Appendix B;

B. any modification to the design of the equipment that decreases the stack gas

exit temperature below that contained in Appendix B;

C. any modification to the design of the equipment that reduces the stack height

below that contained in Appendix B;

D. any construction or modification of structures that increase the effective

structural dimensions as they are used in the building wake effects algorithm in the

ISC Air Dispersion Model, or its successor; or

E. any increase of a maximum potential lead emission rate by more than 0.025

pound per hour.

4.0

CD Title I Condition: State

Implementation Plan (SIP) for

Lead NAAQS; 40 CFR pt. 50; 40

CFR pt. 51; 40 CFR pt. 52, subp.

Y; MN SIP

General Operating and Maintenance Requirements for the SIP: The Permittee

shall operate and maintain the process equipment described in Appendix B

according to the parameters set forth in Appendix B. The parameters were used in

the computer modeling performed to demonstrate that the lead maintenance area

attains compliance with the National Ambient Air Quality Standard (NAAQS) for

lead.

5.0

CD Title I Condition: State

Implementation Plan (SIP) for

Lead NAAQS; 40 CFR pt. 50; 40

CFR pt. 51; 40 CFR pt. 52, subp.

Y; MN SIP

Property Access Restrictions: The Permittee shall limit access to the portion of the

property shown in Appendix F with fencing that continuously encloses that portion

of the Facility property, excluding access points. The Permittee shall limit access to

the portion of the property indicated in Appendix F with gates at each access point.

The Permittee shall operate security cameras that monitor access to the main gate,

shown in Appendix F during office hours. At all other times, the Permittee shall

keep the main gate locked when not in use. At all times, the Permittee shall keep

locked all other gates when not in use. The Permittee shall post NO

TRESPASSING signs at all access points.

6.0

CD Title I Condition: State

Implementation Plan (SIP) for

Lead NAAQS; 40 CFR pt. 50; 40

CFR pt. 51; 40 CFR pt. 52, subp.

Y; MN SIP

Property Access Monitoring: The Permittee shall demonstrate compliance with the

property access restrictions by monthly inspecting the fencing and gates, and

repairing and maintaining the fencing and gates. The Permittee shall complete all

repairs to the fencing and gates within 30 days after the Permittee has access to

information that indicates repair is needed.

7.0
MINNESOTA POLLUTION CONTROL AGENCY

AIR QUALITY

520 LAFAYETTE ROAD

ST. PAUL, MN 55155-4194 COMPLIANCE PLAN CD-01

Facility Name: Gopher Resource LLC

Permit Number: 03700016 - 003

Page 2 of 39 11 May, 2010 12:41

CD Title I Condition: State

Implementation Plan (SIP) for

Lead NAAQS; 40 CFR pt. 50; 40

CFR pt. 51; 40 CFR pt. 52, subp.

Y; MN SIP

Property Access Recordkeeping: The Permittee shall generate and maintain

records containing information associated with the Facility property access

restrictions requirements. At the minimum, the Permittee shall retain records

containing the following information:

1. Inspections: Records of the date of inspection, name of the person conducting

the inspection, identification of each section of fence and each gate inspected,

trespassers or evidence of trespassers, and identification of each location where

repair or maintenance is required.

2. Repairs: Records of the date of repair or maintenance, a description of the

repair and maintenance conducted, and the locations where repair and

maintenance occurred.

8.0

CD Title I Condition: State

Implementation Plan (SIP) for

Lead NAAQS; 40 CFR pt. 50; 40

CFR pt. 51; 40 CFR pt. 52, subp.

Y; MN SIP

FUGITIVES CONTROL:

Other lead emission sources at the Facility include building openings, reentrained

dust from truck traffic at the Facility and wind erosion of unpaved, or otherwise

uncovered, areas on the around the Facility site. The Permittee shall limit the

amount of fugitive lead emissions by, at a minimum, performing the activities

indicated below (Items A - E)

(continued below)

9.0

CD Title I Condition: State

Implementation Plan (SIP) for

Lead NAAQS; 40 CFR pt. 50; 40

CFR pt. 51; 40 CFR pt. 52, subp.

Y; MN SIP

(continued from above)

A. Building Openings:

The Permittee shall keep closed all barriers on outside openings of the Smelting,

Raw Material Warehouse and process side of the Raw Material Processing Area,

shown in Appendix D of this permit, at all times except during ingress and egress

through the building opening, except that some outside doors may be kept open to

provide additional makeup air. Whenever an outside door is kept open, the

Permittee shall demonstrate that negative pressure is still maintained, using a

method described in Appendix H of this permit. If negative pressure cannot be

demonstrated with open doors, the doors shall be closed immediately and negative

pressure demonstrated with the doors closed. Records shall be kept of all such

events and demonstrations. The Permittee shall keep closed all rail loading doors

in the Refining area, shown in Appendix D of this permit, at all times except when a

rail car is being loaded.

(continued below)

10.0

CD Title I Condition: State

Implementation Plan (SIP) for

Lead NAAQS; 40 CFR pt. 50; 40

CFR pt. 51; 40 CFR pt. 52, subp.

Y; MN SIP

(continued from above)

The Permittee shall monthly inspect all barriers on outside openings for damage

which would result in lead emissions escaping the building. Any time that damage

to the outside openings which would result in lead emissions escaping the building

is detected, the owner or operator shall repair the damage within two weeks of the

detection.

The Permittee shall prevent fugitive lead from emitting through outside openings by

operating and maintaining a negative pressure system that puts the areas shown in

Appendix E under negative pressure, and a ventilation system that collects lead

bearing air from the negative pressure areas shown in Appendix E of this permit

and routes it through a cartridge filter.

(continued below)

11.0
MINNESOTA POLLUTION CONTROL AGENCY

AIR QUALITY

520 LAFAYETTE ROAD

ST. PAUL, MN 55155-4194 COMPLIANCE PLAN CD-01

Facility Name: Gopher Resource LLC

Permit Number: 03700016 - 003

Page 3 of 39 11 May, 2010 12:41

CD Title I Condition: State

Implementation Plan (SIP) for

Lead NAAQS; 40 CFR pt. 50; 40

CFR pt. 51; 40 CFR pt. 52, subp.

Y; MN SIP

(continued from above)

B. Sweeping

The Permittee shall sweep all paved outdoor areas, as indicated in Appendix J of

this permit, with a vacuum equipped road sweeper. If there was a 0.1 inch rainfall

during the previous 24 hours, or if these areas are covered with snow the Permittee

is exempt from sweeping uncovered outside areas during the subsequent 24 hours.

The owner or operator shall collect manually record rainfall data with an on-site rain

gauge.

The Permittee shall immediately (as soon as is reasonably possible after giving

consideration to plant and personnel safety) clean up spills of lead containing

materials, flue dust, or slag with a vacuum equipped road sweeper, or by hand

vacuuming or wet sweeping.

The Permittee shall store swept lead bearing material in the Raw Material

Warehouse and recycle the swept lead bearing material in the furnaces.

(continued below)

12.0

CD Title I Condition: State

Implementation Plan (SIP) for

Lead NAAQS; 40 CFR pt. 50; 40

CFR pt. 51; 40 CFR pt. 52, subp.

Y; MN SIP

(continued from above)

C. Traffic Limitations

The Permittee shall limit mobile equipment traffic to the paved outdoor areas,

shown in Appendix J, except for lawn mowing equipment on vegetative (grass

covered) areas and maintenance and inspection activities.

D. Equipment Handling and Cleaning

Bag and Cartridge Replacement: The Permittee shall immediately deposit used

bags and cartridge filters in leak-proof containers when replacing the baghouse or

cartridge filters for the control equipment listed in Appendix B. The owner or

operator shall recycle the used bags or cartridge filters in the furnaces.

(continued below)

13.0

CD Title I Condition: State

Implementation Plan (SIP) for

Lead NAAQS; 40 CFR pt. 50; 40

CFR pt. 51; 40 CFR pt. 52, subp.

Y; MN SIP

(continued from above)

Mobile Equipment: The Permittee shall daily clean all mobile equipment used in the

containment building. Mobile equipment includes, but not limited to vacuum

sweepers, forklifts, and front end loader(s). Cleaning shall be conducted by hand

vacuuming, scrubbing or pressure washing with water in the wash bays indicated in

Appendix D of this permit. The Permittee shall keep the barriers on outside

openings closed during cleaning.

The Permittee shall store vacuumed lead bearing material in the Raw Material

Warehouse shown in Appendix D of this permit, and recycle the vacuumed material

in the furnaces, described in Appendix B. The Permittee shall dispose of any water

laden with lead in the Facility Water Treatment Plant.

(continued below)

14.0

CD Title I Condition: State

Implementation Plan (SIP) for

Lead NAAQS; 40 CFR pt. 50; 40

CFR pt. 51; 40 CFR pt. 52, subp.

Y; MN SIP

(continued from above)

Ventilation System: The Permittee shall on a monthly basis, inspect the ventilation

system for holes and negative static pressure with an electronic or magnehelic

pressure gauge. The Permittee shall clean and/or repair the ventilation systems if

there are visible holes and/or positive static pressure. The owner or operator shall

monthly test the magnehelic gauges for accuracy, and repair or replace defective

gauges as prescribed by the manufacturer.

Hazardous Material: The Permittee shall store material inside the Facility building.

The Permittee shall apply water to hazardous material prior to loading it into trucks

that haul the slag material outside the Facility building. Water application is not

required when the air temperature outside is at or below 32 degree F. The

Permittee shall cover all trucks hauling hazardous residue outside the Facility

building.

(continued below)

15.0
MINNESOTA POLLUTION CONTROL AGENCY

AIR QUALITY

520 LAFAYETTE ROAD

ST. PAUL, MN 55155-4194 COMPLIANCE PLAN CD-01

Facility Name: Gopher Resource LLC

Permit Number: 03700016 - 003

Page 4 of 39 11 May, 2010 12:41

CD Title I Condition: State

Implementation Plan (SIP) for

Lead NAAQS; 40 CFR pt. 50; 40

CFR pt. 51; 40 CFR pt. 52, subp.

Y; MN SIP

(continued from above)

E. Wind Erosion Prevention

Vegetative Cover: The Permittee shall maintain continuous vegetative cover

(grasses) over all areas that are not paved or otherwise continuously covered.

Paved Areas: The Permittee shall retain and maintain all paved areas.

Soil Removal: If the Permittee removes lead bearing soil to comply with Resource

Conservation Recovery Act (RCRA) corrective action requirements, the Permittee

shall remove and handle the soil in accordance to a corrective action plan

approved by the MPCA Hazardous Waste Program. If as a part of the corrective

action plan the Permittee replaces lead bearing soil with clean fill (without lead) that

bars remaining lead bearing soil from exposure to the air, the Permittee is exempt

from vegetative cover and paved areas requirements in those areas on which clean

fill is in place.

16.0

CD Title I Condition: State

Implementation Plan (SIP) for

Lead NAAQS; 40 CFR pt. 50; 40

CFR pt. 51; 40 CFR pt. 52, subp.

Y; MN SIP

Recordkeeping for the MN State Implementation for Lead: Retain all records at the

stationary source for a period of five (5) years from the date of the required

monitoring, sample, measurement, or report that corresponds with the MN State

Implementation Plan Title I Condition.

17.0

CD Title I Condition: State

Implementation Plan (SIP) for

Lead NAAQS; 40 CFR pt. 50; 40

CFR pt. 51; 40 CFR pt. 52, subp.

Y; MN SIP

NEGATIVE PRESSURE TESTING:

The owner or operator shall monthly conduct Negative Pressure testing in

accordance with Appendices H and I of this permit.

18.0

CD Title I Condition: State

Implementation Plan (SIP) for

Lead NAAQS; 40 CFR pt. 50; 40

CFR pt. 51; 40 CFR pt. 52, subp.

Y; MN SIP

CONTINGENCY PLAN REQUIREMENTS: In the event that the maintenance area

in which the Facility is located fails to maintain compliance with the lead NAAQS of

1.5 microgram per cubic meter, the following contingency plan measures shall be

implemented by the Permittee. These measures shall be implemented by the

owner or operator within 30 days following formal determination and notification by

the MPCA or the EPA.

A. The Permittee shall daily sweep with a wet sweeper the paved outdoor areas

that are shown in Appendix D as areas that are daily swept.

B. The Permittee shall daily sweep with a vacuum equipped road sweeper the

paved outdoor areas that are shown in Appendix D as areas that are swept at least

once a week and at least every three weeks.

(continued below)

19.0

CD Title I Condition: State

Implementation Plan (SIP) for

Lead NAAQS; 40 CFR pt. 50; 40

CFR pt. 51; 40 CFR pt. 52, subp.

Y; MN SIP

(continued from above)

C. If ice will form on the paved outdoor areas while sweeping with a wet sweeper,

the Permittee shall sweep twice daily with a vacuum equipped road sweeper the

paved outdoor areas that are shown in Appendix D as areas that are daily swept.

D. The Permittee is exempt from sweeping if there was a 0.1 inch rainfall during the

previous 24 hours, or if the paved outdoor areas are covered with snow. The

Permittee shall collect rainfall data with an onsite rain gauge.

In the event that the contingency plan is implemented, the Permittee shall maintain

a record of all sweeping events, records of rainfall and snow cover for times not

swept because of snow cover, and records of days that dry sweeping replaced wet

sweeping because of ice formation on the paved outdoor areas.

20.0

CD Title I Condition: State

Implementation Plan (SIP) for

Lead NAAQS; 40 CFR pt. 50; 40

CFR pt. 51; 40 CFR pt. 52, subp.

Y; MN SIP

RECORDKEEPING

The Permittee shall keep and maintain all required documents, records, reports,

and plans in a form suitable to allow the EPA or MPCA staff to determine

compliance with SIP requirements. The Permittee shall maintain the information

onsite in files which are easily accessible for inspection by EPA or MPCA staff.

(continued below)

21.0
MINNESOTA POLLUTION CONTROL AGENCY

AIR QUALITY

520 LAFAYETTE ROAD

ST. PAUL, MN 55155-4194 COMPLIANCE PLAN CD-01

Facility Name: Gopher Resource LLC

Permit Number: 03700016 - 003

Page 5 of 39 11 May, 2010 12:41

CD Title I Condition: State

Implementation Plan (SIP) for

Lead NAAQS; 40 CFR pt. 50; 40

CFR pt. 51; 40 CFR pt. 52, subp.

Y; MN SIP

(continued from above)

At a minimum, the Permittee shall retain records containing the following

information:

1. Building Openings: all monthly negative pressure testing results, monthly

inspection reports of all damage to barriers on inside and outside openings, and the

corrective action taken. If no damage occurred, the record shall state that no

damage occurred. Records shall be kept of damage and subsequent repair or

replacement of barriers on inside and outside openings detected or that occur at

times other than during the monthly inspection. The records shall also include the

installation of any new building openings and barriers for the openings.

2. Sweeping: records of daily and weekly sweeping events, spills of lead containing

materials, cleanup of these spills, records of sweeping equipment breakdowns and

repairs, and records of rainfall and snow cover for times not swept because of the

presence of rainfall or snow cover.

(continued below)

22.0

CD Title I Condition: State

Implementation Plan (SIP) for

Lead NAAQS; 40 CFR pt. 50; 40

CFR pt. 51; 40 CFR pt. 52, subp.

Y; MN SIP

(continued from above)

3. Equipment Handling and Cleaning: daily records of mobile equipment cleaning

and repairs, and record of monthly ventilation system inspections, and magnahelic

gauge repair and replacement.

4. Wind Erosion Prevention: inspection records of vegetative cover and pavement,

and repairs to these areas. A record of any lead contaminated soil corrective action

(under RCRA) at the facility, and of areas covered with clean fill.

23.0

24.0 CD hdr OTHER SOURCE-SPECIFIC REQUIREMENTS

CD Minn. Stat. Section 116.07, subds.

4a & 9; Minn. R. 7007.0100, subp.

7(A), 7(L), & 7(M); Minn. R.

7007.0800, subps. 1, 2 & 4; Minn.

R. 7009.0010-7009.0080

The parameters used in SO2 modeling for permit number 03700016-003 are listed

in Appendix B of this permit.

25.0

CD hdr DETERMINING IF A PROJECT/MODIFICATION IS SUBJECT TO NEW SOURCE

REVIEW

26.0

CD Title I Condition: 40 CFR Section

52.21(r)(6); Minn. R. 7007.3000;

Minn. R. 7007.0800, subp. 2

These requirements apply where there is a reasonable possibility (as defined in 40

CFR Section 52.21(r)(6)(vi)) that a proposed project, analyzed using the

actual-to-projected-actual (ATPA) test (either by itself or as part of the hybrid test

described in Section 52.21(a)(2)(iv)(f)) and found to not be part of a major

modification, may result in a significant emissions increase. If the ATPA test is not

used for a particular project, or if there is not a reasonable possibility that the

proposed project could result in a significant emissions increase, then these

requirements do not apply to that project.

Even though a particular modification is not subject to New Source Review, or

where there isn't a reasonable possibility that a proposed project could result in a

significant emissions increase, a permit amendment, recordkeeping, or notification

may still be required under Minn. R. 7007.1150 - 7007.1500.

27.0

CD Title I Condition: 40 CFR Section

52.21(r)(6); Minn. R. 7007.3000;

Minn. R. 7007.1200, subp. 4;

Minn. R. 7007.0800, subps. 4 & 5

Preconstruction Documentation -- Before beginning actual construction on a

project, the Permittee shall document the following:

1. Project description

2. Identification of any emission unit (EU) whose emissions of an NSR pollutant

could be affected

3. Pre-change potential emissions of any affected existing EU, and the projected

post-change potential emissions of any affected existing or new EU.

4. A description of the applicability test used to determine that the project is not a

major modification for any regulated NSR pollutant, including the baseline actual

emissions, the projected actual emissions, the amount of emissions excluded due

to increases not associated with the modification and that the EU could have

accommodated during the baseline period, an explanation of why the amounts

were excluded, and any creditable contemporaneous increases and decreases that

were considered in the determination.

The Permittee shall maintain records of this documentation.

28.0
MINNESOTA POLLUTION CONTROL AGENCY

AIR QUALITY

520 LAFAYETTE ROAD

ST. PAUL, MN 55155-4194 COMPLIANCE PLAN CD-01

Facility Name: Gopher Resource LLC

Permit Number: 03700016 - 003

Page 6 of 39 11 May, 2010 12:41

CD Title I Condition: 40 CFR Section

52.21(r)(6); Minn. R. 7007.3000;

Minn. R. 7007.0800, subps. 4 & 5

The Permittee shall monitor the actual emissions of any regulated NSR pollutant

that could increase as a result of the project and that were analyzed using the

ATPA test, and the potential emissions of any regulated NSR pollutant that could

increase as a result of the project and that were analyzed using potential emissions

in the hybrid test. The Permittee shall calculate and maintain a record of the sum of

the actual and potential (if the hybrid test was used in the analysis) emissions of the

regulated pollutant, in tons per year on a calendar year basis, for a period of 5

years following resumption of regular operations after the change, or for a period of

10 years following resumption of regular operations after the change if the project

increases the design capacity of or potential to emit of any unit associated with the

project.

29.0

CD Title I Condition: 40 CFR Section

52.21(r)(6); Minn. R. 7007.3000;

Minn. R. 7007.0800, subps. 4 & 5

The Permittee must submit a report to the Agency if the annual summed (actual,

plus potential if used in hybrid test) emissions differ from the preconstruction

projection and exceed the baseline actual emissions by a significant amount as

listed at 40 CFR Section 52.21(b)(23). Such report shall be submitted to the

Agency within 60 days after the end of the year in which the exceedances occur.

The report shall contain:

a. The name and ID number of the facility, and the name and telephone number of

the facility contact person

b. The annual emissions (actual, plus potential if any part of the project was

analyzed using the hybrid test) for each pollutant for which the preconstruction

projection and significant emissions increase are exceeded.

c. Any other information, such as an explanation as to why the summed emissions

differ from the preconstruction projection.

30.0

31.0 CD hdr OPERATIONAL REQUIREMENTS

CD 40 CFR pt. 50; Minn. Stat. Section

116.07, subds. 4a & 9; Minn. R.

7007.0100, subps. 7A, 7L & 7M;

Minn. R. 7007.0800, subps. 1, 2 &

4; Minn. R. 7009.0010-7009.0080

The Permittee shall comply with National Primary and Secondary Ambient Air

Quality Standards, 40 CFR pt. 50, and the Minnesota Ambient Air Quality

Standards, Minn. R. 7009.0010 to 7009.0080. Compliance shall be demonstrated

upon written request by the MPCA.

32.0

CD Minn. R. 7011.0020 Circumvention: Do not install or use a device or means that conceals or dilutes

emissions, which would otherwise violate a federal or state air pollution control rule,

without reducing the total amount of pollutant emitted.

33.0

CD Minn. R. 7007.0800, subp. 2;

Minn. R. 7007.0800, subp. 16(J)

Air Pollution Control Equipment: Operate all pollution control equipment whenever

the corresponding process equipment and emission units are operated, unless

otherwise noted in Table A.

34.0

CD Minn. R. 7007.0800, subps. 14

and 16(J)

Operation and Maintenance Plan: Retain at the stationary source an operation and

maintenance plan for all air pollution control equipment. At a minimum, the O & M

plan shall identify all air pollution control equipment and control practices and shall

include a preventative maintenance program for the equipment and practices, a

description of (the minimum but not necessarily the only) corrective actions to be

taken to restore the equipment and practices to proper operation to meet applicable

permit conditions, a description of the employee training program for proper

operation and maintenance of the control equipment and practices, and the records

kept to demonstrate plan implementation.

35.0

CD Minn. R. 7019.1000, subp. 4 Operation Changes: In any shutdown, breakdown, or deviation the Permittee shall

immediately take all practical steps to modify operations to reduce the emission of

any regulated air pollutant. The Commissioner may require feasible and practical

modifications in the operation to reduce emissions of air pollutants. No emissions

units that have an unreasonable shutdown or breakdown frequency of process or

control equipment shall be permitted to operate.

36.0

CD Minn. R. 7011.0150 Fugitive Emissions: Do not cause or permit the handling, use, transporting, or

storage of any material in a manner which may allow avoidable amounts of

particulate matter to become airborne. Comply with all other requirements listed in

Minn. R. 7011.0150.

37.0

CD Minn. R. 7030.0010 - 7030.0080 Noise: The Permittee shall comply with the noise standards set forth in Minn. R.

7030.0010 to 7030.0080 at all times during the operation of any emission units.

This is a state only requirement and is not enforceable by the EPA Administrator or

citizens under the Clean Air Act.

38.0

CD Minn. R. 7007.0800, subp. 9(A) Inspections: The Permittee shall comply with the inspection procedures and

requirements as found in Minn. R. 7007.0800, subp. 9(A).

39.0

CD Minn. R. 7007.0800, subp. 16 The Permittee shall comply with the General Conditions listed in Minn. R.

7007.0800, subp. 16.

40.0

41.0 CD hdr PERFORMANCE TESTING
MINNESOTA POLLUTION CONTROL AGENCY

AIR QUALITY

520 LAFAYETTE ROAD

ST. PAUL, MN 55155-4194 COMPLIANCE PLAN CD-01

Facility Name: Gopher Resource LLC

Permit Number: 03700016 - 003

Page 7 of 39 11 May, 2010 12:41

CD Minn. R. ch. 7017 Performance Testing: Conduct all performance tests in accordance with Minn. R.

ch. 7017 unless otherwise noted in Tables A, B, and/or C.

42.0

CD Minn. Rs. 7017.2030, subp. 1-4,

7017.2018 and Minn. R.

7017.2035, subp. 1-2

Performance Test Notifications and Submittals:

Performance Tests are due as outlined in Tables A and B of the permit. See Table

B for additional testing requirements.

Performance Test Notification (written): due 30 days before each Performance Test

Performance Test Plan: due 30 days before each Performance Test

Performance Test Pre-test Meeting: due 7 days before each Performance Test

Performance Test Report: due 45 days after each Performance Test

Performance Test Report - Microfiche Copy: due 105 days after each Performance

Test

The Notification, Test Plan, and Test Report may be submitted in alternative format

as allowed by Minn. R. 7017.2018.

43.0

CD Minn. R. 7017.2025, subp. 3 Limits set as a result of a performance test (conducted before or after permit

issuance) apply until superseded as stated in the MPCA's Notice of Compliance

letter granting preliminary approval. Preliminary approval is based on formal review

of a subsequent performance test on the same unit as specified by Minn. R.

7017.2025, subp. 3. The limit is final upon issuance of a permit amendment

incorporating the change.

44.0

45.0 CD hdr MONITORING REQUIREMENTS

CD Minn. R. 7007.0800, subp. 4(D) Monitoring Equipment Calibration: Annually calibrate all required monitoring

equipment (any requirements applying to continuous emission monitors are listed

separately in this permit).

46.0

CD Minn. R. 7007.0800, subp. 4(D) Operation of Monitoring Equipment: Unless otherwise noted in Tables A and/or B,

monitoring a process or control equipment connected to that process is not

necessary during periods when the process is shutdown, or during checks of the

monitoring systems, such as calibration checks and zero and span adjustments. If

monitoring records are required, they should reflect any such periods of process

shutdown or checks of the monitoring system.

47.0

48.0 CD hdr RECORDKEEPING

CD Minn. R. 7007.0800, subp. 5(C) Recordkeeping: Retain all records at the stationary source for a period of five (5)

years from the date of monitoring, sample, measurement, or report. Records which

must be retained at this location include all calibration and maintenance records, all

original recordings for continuous monitoring instrumentation, and copies of all

reports required by the permit. Records must conform to the requirements listed in

Minn. R. 7007.0800, subp. 5(A).

49.0

CD Minn. R. 7007.0800, subp. 5(B) Recordkeeping: Maintain records describing any insignificant modifications (as

required by Minn. R. 7007.1250, subp. 3) or changes contravening permit terms (as

required by Minn. R. 7007.1350, subp. 2), including records of the emissions

resulting from those changes.

50.0

CD Minn. R. 7007.1200, subp. 4 When the Permittee determines that no permit amendment or notification is

required prior to making a change, the Permittee must retain records of all

calculations required under Minn. R. 7007.1200. These records shall be kept for a

period of five years from the date the change was made or until permit reissuance,

whichever is longer. The records shall be kept at the stationary source for the

current calendar year of operation and may be kept at the stationary source or

office of the stationary source for all other years. The records may be maintained in

either electronic or paper format.

51.0

52.0 CD hdr REPORTING/SUBMITTALS

CD Minn. R. 7019.1000, subp. 3 Shutdown Notifications: Notify the Commissioner at least 24 hours in advance of a

planned shutdown of any control equipment or process equipment if the shutdown

would cause any increase in the emissions of any regulated air pollutant. If the

owner or operator does not have advance knowledge of the shutdown, notification

shall be made to the Commissioner as soon as possible after the shutdown.

However, notification is not required in the circumstances outlined in Items A, B

and C of Minn. R. 7019.1000, subp. 3.

At the time of notification, the owner or operator shall inform the Commissioner of

the cause of the shutdown and the estimated duration. The owner or operator shall

notify the Commissioner when the shutdown is over.

53.0
MINNESOTA POLLUTION CONTROL AGENCY

AIR QUALITY

520 LAFAYETTE ROAD

ST. PAUL, MN 55155-4194 COMPLIANCE PLAN CD-01

Facility Name: Gopher Resource LLC

Permit Number: 03700016 - 003

Page 8 of 39 11 May, 2010 12:41

CD Minn. R. 7019.1000, subp. 2 Breakdown Notifications: Notify the Commissioner within 24 hours of a breakdown

of more than one hour duration of any control equipment or process equipment if

the breakdown causes any increase in the emissions of any regulated air pollutant.

The 24-hour time period starts when the breakdown was discovered or reasonably

should have been discovered by the owner or operator. However, notification is not

required in the circumstances outlined in Items A, B and C of Minn. R. 7019.1000,

subp. 2.

At the time of notification or as soon as possible thereafter, the owner or operator

shall inform the Commissioner of the cause of the breakdown and the estimated

duration. The owner or operator shall notify the Commissioner when the

breakdown is over.

54.0

CD Minn. R. 7019.1000, subp. 1 Notification of Deviations Endangering Human Health or the Environment: As soon

as possible after discovery, notify the Commissioner or the state duty officer, either

orally or by facsimile, of any deviation from permit conditions which could endanger

human health or the environment.

55.0

CD Minn. R. 7019.1000, subp. 1 Notification of Deviations Endangering Human Health or the Environment Report:

Within 2 working days of discovery, notify the Commissioner in writing of any

deviation from permit conditions which could endanger human health or the

environment. Include the following information in this written description:

1. the cause of the deviation;

2. the exact dates of the period of the deviation, if the deviation has been corrected;

3. whether or not the deviation has been corrected;

4. the anticipated time by which the deviation is expected to be corrected, if not yet

corrected; and

5. steps taken or planned to reduce, eliminate, and prevent reoccurrence of the

deviation.

56.0

S/A Minn. R. 7007.0800, subp. 6(A)(2) Semiannual Deviations Report: due 30 days after end of each calendar half-year

starting 01/31/2003. The first semiannual report submitted by the Permittee shall

cover the calendar half-year in which the permit is issued. The first report of each

calendar year covers January 1 - June 30. The second report of each calendar

year covers July 1 - December 31. If no deviations have occurred, the Permittee

shall submit the report stating no deviations.

57.0

CD Minn. R. 7007.1150 through Minn.

R. 7007.1500

Application for Permit Amendment: If a permit amendment is needed, submit an

application in accordance with the requirements of Minn. R. 7007.1150 through

Minn. R. 7007.1500. Submittal dates vary, depending on the type of amendment

needed.

58.0

S/A Minn. R. 7007.0400, subp. 2 Application for Permit Reissuance: due 180 days before expiration of Existing

Permit

59.0

CD Minn. R. 7007.1400, subp. 1(H) Extension Requests: The Permittee may apply for an Administrative Amendment to

extend a deadline in a permit by no more than 120 days, provided the proposed

deadline extension meets the requirements of Minn. R. 7007.1400, subp. 1(H).

60.0

S/A Minn. R. 7007.0800, subp. 6(C) Compliance Certification: due 31 days after end of each calendar year following

Permit Issuance (for the previous calendar year). The Permittee shall submit this on

a form approved by the Commissioner, both to the Commissioner and to the US

EPA regional office in Chicago. This report covers all deviations experienced during

the calendar year.

61.0

CD Minn. R. 7019.3000 - 7019.3100 Emission Inventory Report: due on or before April 1 of each calendar year following

permit issuance. The Permittee shall submit this on a form approved by the

Commissioner.

62.0

CD Minn. R. 7002.0005 through Minn.

R. 7002.0095

63.0 Emission Fees: due 60 days after receipt of an MPCA bill.

CD hdr RECORDKEEPING AND REPORTING REQUIREMENTS FOR 40 CFR 63,

Subpart X

64.0
MINNESOTA POLLUTION CONTROL AGENCY

AIR QUALITY

520 LAFAYETTE ROAD

ST. PAUL, MN 55155-4194 COMPLIANCE PLAN CD-01

Facility Name: Gopher Resource LLC

Permit Number: 03700016 - 003

Page 9 of 39 11 May, 2010 12:41

CD 40 CFR Section 63.550(a); Minn.

R. 7011.7240

(a) The owner or operator of a secondary lead smelter shall comply with all of the

recordkeeping requirements under Sec. 63.10 of the General Provisions. In

addition, each owner or operator of a secondary lead smelter shall maintain for a

period of 5 years, records of the information listed in paragraphs (a)(1) through

(a)(6) of this section.

 (1) An identification of the date and time of all bag leak detection system alarms,

their cause, and an explanation of the corrective actions taken.

 (2) Monitoring the reverberatory natural gas flow on a continuous basis.

 (3) (superseded by alternative monitoring, see Subject Items GP001 and CE007)

 (4) Any recordkeeping required as part of the practices described in the standard

operating procedures manual required under Sec. 63.545(a) for the control of

fugitive dust emissions.

 (5) Any recordkeeping required as part of the practices described in the standard

operating procedures manual for baghouses required under Sec. 63.548(a).

65.0

CD 40 CFR Section 63.550(b) and (c);

Minn. R. 7011.7240

(b) The owner or operator of a secondary lead smelter shall comply with all of the

reporting requirements under Sec. 63.10 of the General Provisions. The submittal

of reports shall be no less frequent than specified under Sec. 63.10(e)(3) of the

General Provisions. Once a source reports a violation of the standard or excess

emissions, the source shall follow the reporting format required under Sec.

63.10(e)(3) until a request to reduce reporting frequency is approved.

(c) In addition to the information required under Sec. 63.10 of the General

Provisions, reports required under paragraph (b) of this section shall include the

information specified in paragraphs (c)(1) through (c)(6) of this section.

 (1) The reports shall include records of all alarms from the bag leak detection

system specified in Sec. 63.548(e).

 (2) The reports shall include a description of the procedures taken following each

bag leak detection system alarm pursuant to Sec. 63.548 (f)(1) and (2).

66.0

CD 40 CFR Section 63.550(c); Minn.

R. 7011.7240

(4) The reports shall contain a summary of the records maintained as part of the

practices described in the standard operating procedures manual for baghouses

required under Sec. 63.548(a), including an explanation of the periods when the

procedures were not followed and the corrective actions taken.

(6) The reports shall contain a summary of the fugitive dust control measures

performed during the required reporting period, including an explanation of the

periods when the procedures outlined in the standard operating procedures manual

pursuant to Sec. 63.545(a) were not followed and the corrective actions taken. The

reports shall not contain copies of the daily records required to demonstrate

compliance with the requirements of the standard operating procedures manuals

required under Secs. 63.545(a) and 63.548(a).

67.0
MINNESOTA POLLUTION CONTROL AGENCY

AIR QUALITY

520 LAFAYETTE ROAD

ST. PAUL, MN 55155-4194 COMPLIANCE PLAN CD-01

Facility Name: Gopher Resource LLC

Permit Number: 03700016 - 003

Page 10 of 39 11 May, 2010 12:41

Subject Item: GP 001 Process Sources under NESHAP Subpart X

Associated Items: EU 004 West Reverberatory Furnace

EU 007 East Reverberatory Furnace 

EU 009 Blast Furnace 

NC/

CA

Type Citation Requirement

1.0 CD hdr EMISSION LIMITS

LIMIT 40 CFR Section 63.543(a); Minn.

R. 7011.7240

Lead Compounds: less than 0.00087 grains/dry standard cubic foot using 3-hour

Average (3-hour arithmetic average) for East Reverberatory and Blast Furnace [2.0

milligrams per dry standard cubic meter (mg/dscm)]

2.0

LIMIT 40 CFR Section 63.543(c); Minn.

R. 7011.7240

THC (Total Hydrocarbons): less than 20 parts per million by volume, expressed as

propane corrected to 4 percent carbon dioxide to correct for dilution, based on a

3-hour arithmetic average.

This limit applies during the periods when the collocated blast and reverberatory

furnaces are both operating.

3.0

LIMIT 40 CFR Section 63.543(c)(1);

Minn. R. 7011.7240

THC (Total Hydrocarbons): less than 360 parts per million by volume, expressed as

propane corrected to 4 percent carbon dioxide to correct for dilution, based on a

3-hour arithmetic average.

This limit applies during the periods when the reveberatory furnaces are not

operating.

4.0

CD hdr CONTROL REQUIREMENTS - See also Subject Items GP004, CE004, CE005,

and CE007

5.0

CD Minn. R. 7007.0800, subps. 2 and

14

The Permittee shall operate and maintain the fabric filters CE004 and CE005 at all

times that any emission unit controlled by the fabric filter is in operation. The

Permittee shall document periods of non-operation of the control equipment.

6.0

CD Minn. R. 7007.0800, subps. 2 and

14

The Permittee shall operate and maintain the afterburner CE007 at all time that

EU007 and EU009 are both operating. The Permittee shall document periods of

operation of CE007, and EU007 and EU009 (both individually and simultaneously).

7.0

8.0 CD hdr THC MONITORING REQUIREMENTS

CD 40 CFR Section 63.548(j); Minn.

R. 7011.7240

The owner or operator of a blast furnace or collocated blast furnace and

reverberatory furnace subject to the total hydrocarbon standards in 40 CFR Section

63.543(c), (d), or (e) must comply with the requirements of either 40 CFR Section

63.548(j)(1) or (j)(2), to demonstrate continuous compliance with the total

hydrocarbon emission standards. The Permittee proposed an alternative monitoring

plan of monitoring reverberatory furnace natural gas flow instead of continuous

temperature. This plan was approved by the EPA on June 29, 1998.

9.0

CD 40 CFR Section 63.8 (f)

[Alternative Monitoring Method,

EPA letter dated 7/29/1998]

The Permittee shall continuously monitor and record the natural gas or propane

usage of EU007.

10.0

CD 40 CFR Section 63.8 (f)

[Alternative Monitoring Method,

EPA letter dated 7/29/1998]

Whenever the blast furnace (EU009) and the east reverberatory furnace (EU007)

are both operating, the Permittee shall show compliance with the THC standard of

20 ppm as follows:

1. Maintain the natural gas usage at or above the arithmetic average established in

most recent MPCA approved compliance test.

OR

2. Maintain the propane usage at or above the arithmetic average established in

most recent MPCA approved compliance test.

11.0

CD 40 CFR Section 63.8 (f)

[Alternative Monitoring Method,

EPA letter dated 7/29/1998]

The Permittee shall report to U.S. EPA and copy to the MPCA on a semiannual

basis whether any 3-hour arithmetic average natural gas usage or propane usage

is less than the arithmetic average established in the most recent MPCA approved

compliance test. Once any 3-hour usage is less than the established average,

report on a quarterly basis until a request to reduce reporting frequency is approved

by the EPA.

12.0

CD 40 CFR Section 63.8 (f)

[Alternative Monitoring Method,

EPA letter dated 7/29/1998]

Calibration of Continuous Monitoring Device: The Permittee shall service and

calibrate the monitoring instrument at 1-year intervals and keep records of all

calibrations for at least 5 years.

13.0

14.0 CD hdr PERFORMANCE TESTING REQUIREMENTS - See Subject Item SV003
MINNESOTA POLLUTION CONTROL AGENCY

AIR QUALITY

520 LAFAYETTE ROAD

ST. PAUL, MN 55155-4194 COMPLIANCE PLAN CD-01

Facility Name: Gopher Resource LLC

Permit Number: 03700016 - 003

Page 11 of 39 11 May, 2010 12:41

Subject Item: GP 002 Process Fugitive Sources under NESHAP Subpart X

Associated Items: EU 006 Scrap Dryer

EU 011 Refining Kettle No. 1

EU 012 Refining Kettle No. 2

EU 013 Refining Kettle No. 3

EU 014 Refining Kettle No. 4

EU 015 Refining Kettle No. 5

EU 016 Refining Kettle No. 6

EU 017 Refining Kettle No. 7

EU 018 Refining Kettle No. 8

EU 019 Refining Kettle No. 9

EU 020 Refining Kettle No. 10

FS 001 Furnace Area Process Fugitives

FS 002 West Reverberatory Furnace Process Fugitives

FS 003 East Reverberatory Furnace Process Fugitives

FS 004 Blast Furnace Process Fugitives

FS 005 Casting Machine Process Fugitives

FS 006 Refining Area Fugitive Dust Sources

NC/

CA

Type Citation Requirement

1.0 CD hdr EMISSION AND OPERATING LIMITS

LIMIT 40 CFR Section 63.544(c); 40

CFR Section 63.544(d); Minn. R.

7011.7240

Lead Compounds: less than or equal to 0.00087 grains/dry standard cubic foot

using 3-hour Average ( 3-hour arithmetic average) (2.0 mg/dscm). The ventilation

air from all enclosures hoods and total enclosures shall be conveyed to a control

device.

2.0

CD 40 CFR Section 63.544(b); Minn.

R. 7011.7240

Process Fugitive Emission Sources (as defined at 40 CFR Section 63.544(a)) shall

be located in a total enclosure subject to general ventilation that maintains the

building at a lower than ambient pressure to ensure in-draft through any doorway

opening.

(1) All process fugitive enclosure hoods (except those for refining kettles and dryer

transition pieces) shall be ventilated to maintain a face velocity of at least 300 feet

per minute at all hood openings.

(2) Process fugitive enclosure hoods required for refining kettles shall be ventilated

to maintain a face velocity of at least 250 feet per minute.

(3) Process fugitive enclosure hoods required for dryer transition pieces shall be

ventilated to maintain a face velocity of at least 350 feet per minute.

3.0

CD 40 CFR Section 63.544(c); Minn.

R. 7011.7240

Ventilation air from all enclosures, hoods, and total enclosures shall be conveyed to

a control device.

(See also Subject Items CE002, CE003, CE004, CE005, and GP004)

4.0

CD 40 CFR Section 63.544(d); Minn.

R. 7011.7240

All dryer emission vents shall be ventilated to a control device.

(See also Subject Item CE005)

5.0

6.0 CD hdr PERFORMANCE TESTING REQUIREMENTS - See Subject Item SV002
MINNESOTA POLLUTION CONTROL AGENCY

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Permit Number: 03700016 - 003

Page 12 of 39 11 May, 2010 12:41

Subject Item: GP 003 Fugitive Dust Sources under NESHAP Subpart X

Associated Items: EU 001 Raw Material Processing Operation

EU 002 Raw Material Handling Operation

FS 006 Refining Area Fugitive Dust Sources

NC/

CA

Type Citation Requirement

1.0 CD hdr EMISSION AND OPERATING LIMITS

LIMIT 40 CFR Section 63.545(e); Minn.

R. 7011.7240

Lead Compounds: less than or equal to 0.00087 grains/dry standard cubic foot

using 3-hour Average ( 3-hour arithmetic average) (2.0 mg/dscm). The ventilation

air from all enclosures hoods and total enclosures shall be conveyed to a control

device.

2.0

CD 40 CFR Section 63.545(a); Minn.

R. 7011.7240

The Permittee shall prepare and at all times operate according to a standard

operating procedures manual that describes in detail the measures that will be put

in place to control fugitive dust emission sources within the areas of the secondary

lead smelter listed below:

(1) Plant roadways;

(2) Battery breaking area;

(3) Furnace area;

(4) Refining and casting area; and

(5) Materials storage and handling area.

3.0

CD 40 CFR Section 63.545(b); Minn.

R. 7011.7240

The standard operating procedures manual shall be submitted to the Administrator

or delegated authority for review and approval.

4.0

CD 40 CFR Section 63.545(c); Minn.

R. 7011.7240

The controls specified in the standard operating procedures manual shall at a

minimum include the following:

(1) Plant roadways - paving of all areas subject to vehicle traffic and pavement

cleaning twice per day of those areas, except on days when natural precipitation

makes cleaning unnecessary or when sand or a similar material has been spread

on plant roadways to provide traction on ice or snow.

(2) Battery breaking area - total enclosure of the battery breaking area.

(3) Furnace area - total enclosure and ventilation of the enclosure to a control

device.

(4) Refining and casting area - total enclosure and ventilation of the enclosure to a

control device.

(5) Materials storage and handling area - total enclosure of the area and ventilation

of the enclosure to a control device, and a vehicle wash at each exit.

5.0

CD 40 CFR Section 63.545(d); Minn.

R. 7011.7240

Standard Operating Procedures (SOP) Manual: The SOP manual shall require that

daily records be maintained of all wet suppression, pavement cleaning, and vehicle

washing activities performed to control fugitive dust emissions.

6.0

CD hdr PERFORMANCE TESTING REQUIREMENTS - See Subject Items SV001 and

SV002

7.0
MINNESOTA POLLUTION CONTROL AGENCY

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Permit Number: 03700016 - 003

Page 13 of 39 11 May, 2010 12:41

Subject Item: GP 004 NESHAP Subpart X Control Equipment Monitoring Requirements

Associated Items: CE 002 Fabric Filter - Low Temperature, i.e., T<180 Degrees F

CE 003 Fabric Filter - Low Temperature, i.e., T<180 Degrees F

CE 004 Fabric Filter - High Temperature, i.e., T>250 Degrees F

CE 005 Fabric Filter - High Temperature, i.e., T>250 Degrees F

CE 008 Fabric Filter - Low Temperature, i.e., T<180 Degrees F

CE 009 Fabric Filter - Low Temperature, i.e., T<180 Degrees F

NC/

CA

Type Citation Requirement

CD 40 CFR Section 63.548(a) and (b);

Minn. R. 7011.7240

(a) The Permittee shall prepare, and at all times operate according to, a standard

operating procedures manual that describes in detail procedures for inspection,

maintenance, and bag leak detection and corrective action plans for all baghouses

(fabric filters) that are used to control process, process fugitive, or fugitive dust

emissions from any source subject to the lead emission standards in 40 CFR

Sections 63.543, 63.544, and 63.545, including those used to control emissions

from building ventilation.

(b) The standard operating procedures (SOP) manual for baghouses required by

paragraph (a) of this section shall be submitted to the Administrator or delegated

authority for review and approval.

1.0

CD 40 CFR Section 63.548(c); Minn.

R. 7011.7240

(c) The procedures specified in the standard operating procedures manual for

inspections and routine maintenance shall, at a minimum, include the requirements

of paragraphs (c)(1) through (c)(9) of this section.

(1) Daily monitoring of pressure drop across each baghouse cell.

(2) Weekly confirmation that dust is being removed from hoppers through visual

inspection, or equivalent means of ensuring the proper functioning of removal

mechanisms.

(3) Daily check of compressed air supply for pulse-jet baghouses.

(4) An appropriate methodology for monitoring cleaning cycles to ensure proper

operation.

(5) Monthly check of bag cleaning mechanisms for proper functioning through

visual inspection or equivalent means.

(6) Monthly check of bag tension on reverse air and shaker-type baghouses. Such

checks are not required for shaker-type baghouses using

self-tensioning (spring loaded) devices.

2.0

CD 40 CFR Section 63.548(c); Minn.

R. 7011.7240

(continued from above)

(7) Quarterly confirmation of the physical integrity of the baghouse through visual

inspection of the baghouse interior for air leaks.

(8) Quarterly inspection of fans for wear, material buildup, and corrosion through

visual inspection, vibration detectors, or equivalent means.

(9) Except as provided in paragraphs (g) and (h) of this section, continuous

operation of a bag leak detection system.

3.0

CD 40 CFR Section 63.548(d); Minn.

R. 7011.7240

(d) The procedures specified in the standard operating procedures manual for

maintenance shall, at a minimum, include a preventative maintenance schedule

that is consistent with the baghouse manufacturer's instructions for routine and

long-term maintenance.

4.0
MINNESOTA POLLUTION CONTROL AGENCY

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Page 14 of 39 11 May, 2010 12:41

CD 40 CFR Section 63.548(e); Minn.

R. 7011.7240

(e) The bag leak detection system required by 40 CFR Section 63.548(c)(9) shall

meet the specification and requirements of paragraphs (e)(1) through (e)(8) of this

section.

(1) The bag leak detection system must be certified by the manufacturer to be

capable of detecting particulate matter emissions at concentrations of 10 milligram

per actual cubic meter (0.0044 grains per actual cubic foot) or less.

(2) The bag leak detection system sensor must provide output of relative particulate

matter loadings.

(3) The bag leak detection system must be equipped with an alarm system that will

alarm when an increase in relative particulate loadings is detected over a preset

level.

5.0

CD 40 CFR Section 63.548(e); Minn.

R. 7011.7240

(continued from above)

(4) The bag leak detection system shall be installed and operated in a manner

consistent with available written guidance from the U.S. Environmental Protection

Agency or, in the absence of such written guidance, the manufacturer's written

specifications and recommendations for installation, operation, and adjustment of

the system.

(5) The initial adjustment of the system shall, at a minimum, consist of establishing

the baseline output by adjusting the sensitivity (range) and the averaging period of

the device, and establishing the alarm set points and the alarm delay time.

6.0

CD 40 CFR Section 63.548(e); Minn.

R. 7011.7240

(continued from above)

(6) Following initial adjustment, the owner or operator shall not adjust the sensitivity

or range, averaging period, alarm set points, or alarm delay time, except as

detailed in the approved SOP required under 40 CFR Section 63.548(a). In no

event shall the sensitivity be increased by more than 100 percent or decreased

more than 50 percent

over a 365 day period unless such adjustment follows a complete baghouse

inspection which demonstrates the baghouse is in good operating condition.

(7) For negative pressure, induced air baghouses, and positive pressure

baghouses that are discharged to the atmosphere through a stack, the bag leak

detector must be installed downstream of the baghouse and upstream of any wet

acid gas scrubber.

(8) Where multiple detectors are required, the system's instrumentation and alarm

may be shared among detectors.

7.0

CD 40 CFR Section 63.548(f); Minn.

R. 7011.7240

(f) The standard operating procedures manual required by 40 CFR Section

63.548(a) shall include a corrective action plan that specifies the procedures to be

followed in the case of a bag leak detection system alarm. The corrective action

plan shall include, at a minimum, the procedures used to determine and record the

time and causeof the alarm as well as the corrective actions taken to correct the

control device malfunction or minimize emissions as specified in paragraphs (f)(1)

and (f)(2) of this section.

(1) The procedures used to determine the cause of the alarm must be initiated

within 30 minutes of the alarm.

8.0
MINNESOTA POLLUTION CONTROL AGENCY

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Page 15 of 39 11 May, 2010 12:41

CD 40 CFR Section 63.548(f); Minn.

R. 7011.7240

(continued from above)

(2) The cause of the alarm must be alleviated by taking the necessary corrective

action(s) which may include, but not be limited to, 40 CFR Section

63.548(f)(2)(i)-(vi).

(i) Inspecting the baghouse for air leaks, torn or broken filter elements, or any other

malfunction that may cause an increase in emissions.

(ii) Sealing off defective bags or filter media.

(iii) Replacing defective bags or filter media, or otherwise repairing the control

device.

(iv) Sealing off a defective baghouse compartment.

(v) Cleaning the bag leak detection system probe, or otherwise repairing the bag

leak detection system.

(vi) Shutting down the process producing the particulate emissions.

9.0

CD 40 CFR Section 63.548 (h); Minn.

R. 7011.7240

(h) Baghouses that are used exclusively for the control of fugitive dust emissions

from any source subject to the lead emissions standard in 40 CFR Section 63.545

are exempt from the requirement in 40 CFR Section 63.548(c)(9) to be equipped

with a bag leak detector.

10.0
MINNESOTA POLLUTION CONTROL AGENCY

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Permit Number: 03700016 - 003

Page 16 of 39 11 May, 2010 12:41

Subject Item: GP 005 Emergency Diesel Generators

Associated Items: EU 023 Diesel-Powered Electrical Generator 

EU 024 Diesel-Powered Electrical Generator

SV 006 Diesel Electrical Generator 

SV 007 Diesel Electrical Generator 

NC/

CA

Type Citation Requirement

1.0 CD hdr EMISSION LIMITS

LIMIT Minn. R. 7011.2300, subp. 2 Sulfur Dioxide: less than or equal to 0.5 lbs/million Btu heat input . This limit applies

individually to each generator listed in GP005. The potential emissions of these

units are approximatly 0.29 lbs/million Btu heat input.

2.0

LIMIT Minn. R. 7011.2300, subp. 1 Opacity: less than or equal to 20 percent opacity once operating temperatures have

been attained (visible air contaminants). This limit applies individually to each

generator listed in GP005.

3.0

4.0 CD hdr OTHER LIMITS AND REQUIREMENTS

5.0 CD Minn. R. 7007.0800, subp. 2 Fuel Restriction: Burn diesel fuel only

LIMIT Minn. R. 7007.0800, subp. 2; EPA

Policy Memo dated September 6,

1995

6.0 Operating Hours: less than or equal to 500 hours/year using 12-month Rolling Sum

CD Minn. R. 7007.0800, subp. 5 Recordkeeping of Fuel Restriction: The Permittee shall record and maintain

records of the amount of fuel combustion in the units on a monthly basis by the

15th day of each month for the previous month. The record shall be in the form of

fuel bills or meter reading, for example.

7.0

CD Minn. R. 7007.0800, subp. 5 Recordkeeping for Operating Hours: The Permitteee shall calculate and record the

12-month rolling sum of the hours of operation by 15th day of each month for the

previous month.

8.0
MINNESOTA POLLUTION CONTROL AGENCY

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Page 17 of 39 11 May, 2010 12:41

Subject Item: GP 006 Furnaces Subject to NSPS Subpart L

Associated Items: EU 007 East Reverberatory Furnace 

EU 009 Blast Furnace 

NC/

CA

Type Citation Requirement

1.0 CD hdr EMISSION LIMITS

LIMIT 40 CFR Section 60.122(a)(1);

Minn. R. 7011.1820(A)

Total Particulate Matter: less than or equal to 0.022 grains/dry standard cubic foot

using 3-hour Average [50 mg/dscm].

This limit applies individually to each unit listed as an Associated Item.

2.0

LIMIT 40 CFR Section 60.122(a)(2);

Minn. R. 7011.1820(A)

Opacity: less than or equal to 20 percent opacity .

This limit applies individually to each unit listed as an Associated Item.

3.0

4.0 CD hdr CONTROL REQUIREMENTS - See Subject Items CE004 and CE005

5.0 CD hdr PERFORMANCE TESTING REQUIREMENTS - See Subject Item SV003
MINNESOTA POLLUTION CONTROL AGENCY

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Permit Number: 03700016 - 003

Page 18 of 39 11 May, 2010 12:41

Subject Item: GP 007 Torit Stacks

Associated Items: SV 002 SIP Source 3 (CE003 and CE002)

SV 008 Fugitive Emission Collection

NC/

CA

Type Citation Requirement

LIMIT Title I Condition: State

Implementation Plan (SIP) for

Lead NAAQS, 40 CFR pt. 50; 40

CFR pt. 51; 40 CFR pt. 52, subp.

Y; MN SIP

Lead: less than 3.45 lbs/hour using 3-hour Average . This limit applies to the

combined emissions from SV002 and SV008.

1.0

S/A Title I Condition: State

Implementation Plan (SIP) for

Lead NAAQS, 40 CFR pt. 50; 40

CFR pt. 51; 40 CFR pt. 52, subp.

Y; MN SIP

Performance Test: due before end of each calendar 24 months following Permit

Issuance to measure lead emissions from SV002 and SV008, combined, unless

more frequent testing is required for SV002 (see Subject Item SV002).

Demonstration of compliance with the GP007 limit shall be required each time

SV002 is required to be tested for lead and/or lead compound emissions.

2.0
MINNESOTA POLLUTION CONTROL AGENCY

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Permit Number: 03700016 - 003

Page 19 of 39 11 May, 2010 12:41

Subject Item: GP 008 Torit Filter Banks

Associated Items: CE 002 Fabric Filter - Low Temperature, i.e., T<180 Degrees F

CE 003 Fabric Filter - Low Temperature, i.e., T<180 Degrees F

CE 008 Fabric Filter - Low Temperature, i.e., T<180 Degrees F

CE 009 Fabric Filter - Low Temperature, i.e., T<180 Degrees F

NC/

CA

Type Citation Requirement

CD Minn. R. 7007.0800, subps. 2 and

14

The Permittee shall operate and maintain the dust collectors (Torit #1 & 2/CE002,

Torit #3/CE003, Torit #4/CE008, and Torit #5/CE009) at all times that any emission

unit controlled by the dust collector is in operation, unless negative pressure in the

building can be maintained while the collector is not in operation. If two or more

Torit dust collectors/filters are not operating while any process listed as an

Associated Item under CE002, CE003, CE008, and/or CE009 is operating, the

Permittee shall follow the procedures in Appendix H for demonstrating that the

building is under negative pressure.

1.0

CD Minn. R. 7007.0800, subps. 2 and

14

Each day of operation, the Permittee shall record the times of any torit filter

downtime, and if two or more were down at any one time, the results of the building

negative pressure test. The Permittee shall document periods of non-operation of

the control equipment that result in loss of building negative pressure, and take

immediate corrective action as described in Appendix H.

2.0
MINNESOTA POLLUTION CONTROL AGENCY

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Page 20 of 39 11 May, 2010 12:41

Subject Item: SV 001 Raw Material Processing (CE001)

Associated Items: EU 001 Raw Material Processing Operation

NC/

CA

Type Citation Requirement

LIMIT 40 CFR Section 63.545(e); Minn.

R. 7011.7240

Lead Compounds: less than 0.00087 grains/dry standard cubic foot using 3-hour

Average ( 3-hour arithmetic average) from any gases into the atmosphere from any

building or enclosure ventilation system. [ 2.0 mg/dscm]

1.0

LIMIT Minn. R. 7011.0715, subp. 1(A) Total Particulate Matter: less than or equal to 0.3 grains/dry standard cubic foot of

exhaust gas unless required to further reduce emissions to comply with the less

stringent limit of either Minn. R. 7011.0730 or Minn. R. 7011.0735.

2.0

3.0 LIMIT Minn. R. 7011.0715, subp. 1(B) Opacity: less than or equal to 20 percent opacity

4.0 CD hdr CONTROL REQUIREMENTS - See also Subject Item CE001

CD Minn. R. 7007.0800, subps. 2 and

14

The Permittee shall operate and maintain the control device (CE001) at all times

that any emission unit controlled by the device is in operation. The Permittee shall

document periods of non-operation of the control equipment.

5.0

LIMIT Minn. R. 7007.0800, subps. 2 and

14

The Permittee shall operate and maintain the control equipment such that it

achieves an overall control efficiency for Total Particulate Matter: greater than or

equal to 90 percent

6.0

LIMIT Minn. R. 7007.0800, subps. 2 and

14

The Permittee shall operate and maintain the control equipment such that it

achieves an overall control efficiency for PM < 10 micron: greater than or equal to

90 percent

7.0

8.0 CD hdr TESTING REQUIREMENTS

S/A 40 CFR Section 63.7; Minn. R.

7017.2020, subp. 1

Initial Performance Test: due 180 days after Permit Issuance to measure lead

compound emissions.

9.0

S/A Minn. R. 7017.2020, subp. 1 Testing Frequency Plan: due 60 days after Initial Performance Test for lead

compound emissions. The plan shall specify a testing frequency based on the test

data and MPCA guidance. Future performance tests based on 12-month,

36-month, or 60-month intervals, or as applicable, shall be required upon written

approval of the MPCA.

10.0
MINNESOTA POLLUTION CONTROL AGENCY

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Permit Number: 03700016 - 003

Page 21 of 39 11 May, 2010 12:41

Subject Item: SV 002 SIP Source 3 (CE003 and CE002)

Associated Items: GP 007 Torit Stacks

NC/

CA

Type Citation Requirement

LIMIT Title I Condition: State

Implementation Plan (SIP) for

Lead NAAQS, 40 CFR pt. 50; 40

CFR pt. 51; 40 CFR pt. 52, subp.

Y; MN SIP

1.0 Lead: less than 0.0025 grains/dry standard cubic foot using 3-hour Average

LIMIT Title I Condition: State

Implementation Plan (SIP) for

Lead NAAQS, 40 CFR pt. 50; 40

CFR pt. 51; 40 CFR pt. 52, subp.

Y; MN SIP

2.0 Opacity: less than or equal to 5 percent opacity

LIMIT 40 CFR Section 63.544(c); 40

CFR Section 63.544(d); 40 CFR

Section 63.545(e); Minn. R.

7011.7240

Lead Compounds: less than or equal to 0.00087 grains/dry standard cubic foot

using 3-hour Average ( 3-hour arithmetic average) [2.0 mg/dscm]. The ventilation

air from all enclosures hoods and total enclosures shall be conveyed to a control

device.

3.0

4.0 CD hdr PERFORMANCE TESTING REQUIREMENT

S/A Title I Condition: State

Implementation Plan (SIP) for

Lead NAAQS, 40 CFR pt. 50; 40

CFR pt. 51; 40 CFR pt. 52, subp.

Y; MN SIP

Performance Test: due before end of each calendar 24 months starting 11/30/1999

to measure lead emissions.

5.0

S/A Title I Condition: State

Implementation Plan (SIP) for

Lead NAAQS, 40 CFR pt. 50; 40

CFR pt. 51; 40 CFR pt. 52, subp.

Y; MN SIP

Performance Test: due before end of each calendar 24 months starting 11/30/1999

to measure opacity, unless annual testing of lead or lead compounds is required.

Opacity testing shall take place each time lead and/or lead compounds are tested.

6.0

S/A 40 CFR Section 63.544(e); 40

CFR Section 63.544(f); Minn. R.

701.7240

Performance Test: due before end of each calendar year starting 11/30/1999 to

measure emissions of lead compounds. Performance test frequency may be

reduced to 24 calendar months, if lead compounds are emitted at a rate of 0.00044

gr/dscf or less.

Use applicable Test Methods described in 40 CFR Section 63.547.

7.0
MINNESOTA POLLUTION CONTROL AGENCY

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Page 22 of 39 11 May, 2010 12:41

Subject Item: SV 003 Main Stack (CE004, CE005) (SIP Source 1)

Associated Items: EU 004 West Reverberatory Furnace

EU 006 Scrap Dryer

EU 007 East Reverberatory Furnace 

EU 009 Blast Furnace 

EU 011 Refining Kettle No. 1

EU 012 Refining Kettle No. 2

EU 013 Refining Kettle No. 3

EU 014 Refining Kettle No. 4

EU 015 Refining Kettle No. 5

EU 016 Refining Kettle No. 6

EU 017 Refining Kettle No. 7

EU 018 Refining Kettle No. 8

EU 019 Refining Kettle No. 9

EU 020 Refining Kettle No. 10

EU 025 Thermal Oxidizer (aka CE007)

MR 001 SO2 CEMS

NC/

CA

Type Citation Requirement

CD hdr Note that EU007 and EU009 are also subject to the requirements listed at Subject

Items: GP001 and GP006.

1.0

2.0 CD hdr EMISSION LIMITS

LIMIT Title I Condition: State

Implementation Plan (SIP) for

Lead NAAQS, 40 CFR pt. 50; 40

CFR pt. 51; 40 CFR pt. 52, subp.

Y; MN SIP

Lead: less than 0.00306 grains/dry standard cubic foot using 3-hour Average

[7mg/dscm].

This limit applies to the emissions of SV003.

3.0

LIMIT 40 CFR Section 63.543(a); 40

CFR Section 63.544(c); 40 CFR

Section 63.544(d); Minn. R.

7011.7240

Lead Compounds: less than or equal to 0.00087 grains/dry standard cubic foot [2.0

mg/dscm].

This limit applies to the emissions of SV003.

4.0

LIMIT Title I Condition: State

Implementation Plan (SIP) for

Lead NAAQS, 40 CFR pt. 50; 40

CFR pt. 51; 40 CFR pt. 52, subp.

Y; MN SIP

Opacity: less than or equal to 5 percent opacity .

This limit applies to all units exhausting through SV003.

5.0

LIMIT 40 CFR Section 60.122(a)(2);

Minn. R. 7011.1820(A); Minn. R.

7011.0610, subp. 1(A)(2)

6.0 Opacity: less than or equal to 20 percent opacity

LIMIT Minn. R. 7009.0020 [Stipulation

Agreement]

7.0 Sulfur Dioxide: less than 530 lbs/hour using 24-hour Block Average

LIMIT 40 CFR Section 60.122(a)(1);

Minn. R. 7011.1820(A)

Total Particulate Matter: less than or equal to 0.022 grains/dry standard cubic foot

using 3-hour Average [50 mg/dscm].

8.0

LIMIT 40 CFR Section 63.543(c); Minn.

R. 7011.7240

THC (Total Hydrocarbons): less than 20 parts per million by volume, expressed as

propane corrected to 4 percent carbon dioxide to correct for dilution, based on a

3-hour arithmetic average. This limit applies during the periods when the

collocated blast furnace and reverberatory furnaces are both operating.

9.0

LIMIT 40 CFR Section 63.543(c); Minn.

R. 7011.7240

THC (Total Hydrocarbons): less than 360 parts per million by volume, expressed as

propane corrected to 4 percent carbon dioxide to correct for dilution, based on a

3-hour arithmetic average. This limit applies during the periods when the

reveberatory furnace is not operating.

10.0

CD hdr OPERATING LIMITS

[Emission units listed above as Associated Items]

11.0

LIMIT Minn. R. 7017.2025, subp. 3 (No Slag) Production: less than or equal to 26.1 tons/hour using 8-hour Block

Average

12.0
MINNESOTA POLLUTION CONTROL AGENCY

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Permit Number: 03700016 - 003

Page 23 of 39 11 May, 2010 12:41

13.0 CD hdr MONITORING REQUIREMENTS - See also Subject Item MR001

CD Minn. R. 7009.0020 [Stipulation

Agreement]

Sulfur Dioxide Emissions Recordkeeping: The owner or operator shall maintain

data records for stack velocity, temperature, sulfur dioxide concentration and

pounds per hour (lb/hr SO2). The owner or operator shall prepare one-hour

averages for all parameters.

14.0

CD Minn. R. 7009.0020 [Stipulation

Agreement]

Sulfur Dioxide Monitoring: Calibrate, operate and maintain continuous emissions

monitoring systems (CEMS) which measures sulfur dioxide emissions.

15.0

16.0 CD hdr PERFORMANCE TESTING REQUIREMENT

S/A Title I Condition: State

Implementation Plan (SIP) for

Lead NAAQS, 40 CFR pt. 50; 40

CFR pt. 51; 40 CFR pt. 52, subp.

Y; MN SIP

Performance Test: due before end of each calendar 24 months starting 11/30/1999

to measure lead emissions.

17.0

S/A Title I Condition: State

Implementation Plan (SIP) for

Lead NAAQS, 40 CFR pt. 50; 40

CFR pt. 51; 40 CFR pt. 52, subp.

Y; MN SIP

Performance Test: due before end of each calendar 24 months starting 11/30/1999

to measure opacity, unless annual testing of lead or lead compounds is required.

Opacity testing shall also take place each time lead and/or lead compounds are

tested.

18.0

S/A 40 CFR Section 63.543(h); 40

CFR Section 63.543(i); 40 CFR

Section 63.544(e); 40 CFR

Section 63.544(f); Minn. R.

7011.7240

Performance Test: due before end of each calendar year starting 11/30/1999 to

measure for lead compounds. Performance test frequency may be reduced to 24

calendar months, if lead compounds are emitted at a rate of 0.00044 gr/dscf or less.

Use applicable Test Methods described in 40 CFR Section 63.547.

19.0

S/A Minn. R. 7017.2020, subp. 1 Performance Test: due 180 days after Permit Issuance to measure Total

Particulate Matter (PM) emissions.

20.0

S/A 40 CFR Section 63.8 (f)

[Alternative Monitoring Method,

EPA letter dated 7/29/1998]

Performance Test: due 180 days after Permit Issuance to measure THC emissions

when EU007 and EU009 are both operating. During the test, measure and record

at 15 minute intervals (a) natural gas or propane combusted in EU007; and (b)

afterburner temperature with a hand-held monitoring device, for the duration of the

performance test. Calculate the arithmetic average of the fuel usage and

temperature from the 15-minute readings.

21.0

S/A Minn. R. 7017.2020, subp. 1 Testing Frequency Plan: due 60 days after Performance Test for THC emissions.

The plan shall specify a testing frequency based on the test data and MPCA

guidance. Future performance tests based on 12-month, 36-month, or 60-month

intervals, or as applicable, shall be required upon written approval of the MPCA.

22.0

S/A Minn. R. 7017.2020, subp. 1 Testing Frequency Plan: due 60 days after Performance Test for PM emissions.

The plan shall specify a testing frequency based on the test data and MPCA

guidance. Future performance tests based on one-year (12 month), 36 month, and

60 month intervals, or as applicable, shall be required upon written approval of the

MPCA.

23.0
MINNESOTA POLLUTION CONTROL AGENCY

AIR QUALITY

520 LAFAYETTE ROAD

ST. PAUL, MN 55155-4194 COMPLIANCE PLAN CD-01

Facility Name: Gopher Resource LLC

Permit Number: 03700016 - 003

Page 24 of 39 11 May, 2010 12:41

Subject Item: SV 008 Fugitive Emission Collection

Associated Items: EU 002 Raw Material Handling Operation

GP 007 Torit Stacks

NC/

CA

Type Citation Requirement

LIMIT Title I Condition: State

Implementation Plan (SIP) for

Lead NAAQS, 40 CFR pt. 50; 40

CFR pt. 51; 40 CFR pt. 52, subp.

Y; MN SIP

1.0 Opacity: less than or equal to 5 percent opacity

LIMIT 40 CFR Section 63.544(c); 40

CFR Section 63.544(d); 40 CFR

Section 63.545(e); Minn. R.

7011.7240

Lead Compounds: less than or equal to 0.00087 grains/dry standard cubic foot

using 3-hour Average ( 3-hour arithmetic average). The ventilation air from all

enclosures hoods and total enclosures shall be conveyed to a control device.

2.0

3.0 CD hdr PERFORMANCE TESTING REQUIREMENT (See also GP007)

S/A Title I Condition: State

Implementation Plan (SIP) for

Lead NAAQS, 40 CFR pt. 50; 40

CFR pt. 51; 40 CFR pt. 52, subp.

Y; MN SIP

Performance Test: due before end of each calendar 24 months following Permit

Issuance to measure opacity, unless annual testing of lead or lead compounds is

required. Opacity testing shall take place each time lead and/or lead compounds

are tested.

4.0

S/A 40 CFR Section 63.544(e); 40

CFR Section 63.544(f); Minn. R.

701.7240

Performance Test: due before end of each calendar year following Permit Issuance

to measure emissions of lead compounds. Performance test frequency may be

reduced to 24 calendar months, if lead compounds are emitted at a rate of 0.00044

gr/dscf or less.

Use applicable Test Methods described in 40 CFR Section 63.547.

5.0
MINNESOTA POLLUTION CONTROL AGENCY

AIR QUALITY

520 LAFAYETTE ROAD

ST. PAUL, MN 55155-4194 COMPLIANCE PLAN CD-01

Facility Name: Gopher Resource LLC

Permit Number: 03700016 - 003

Page 25 of 39 11 May, 2010 12:41

Subject Item: EU 021 Soda Ash Storage Bin

Associated Items: CE 006 Fabric Filter - Low Temperature, i.e., T<180 Degrees F

SV 004 Soda Ash Storage Bin

NC/

CA

Type Citation Requirement

1.0 CD hdr EMISSION LIMITS

LIMIT Minn. R. 7011.0715, subp. 1(A) Total Particulate Matter: less than or equal to 0.3 grains/dry standard cubic foot of

exhaust gas unless required to further reduce emissions to comply with the less

stringent limit of either Minn. R. 7011.0730 or Minn. R. 7011.0735.

2.0

LIMIT Minn. R. 7005.0100, subp. 35a Total Particulate Matter: less than or equal to 0.01 grains/dry standard cubic foot

(basis for calculated potential emissions)

3.0

LIMIT Minn. R. 7005.0100, subp. 35a PM < 10 micron: less than or equal to 0.01 grains/dry standard cubic foot (basis for

calculated potential emissions)

4.0

5.0 LIMIT Minn. R. 7011.0715, subp. 1(B) Opacity: less than or equal to 20 percent opacity

6.0 CD hdr CONTROL REQUIREMENTS - See also Subject Item CE006

CD Minn. R. 7007.0800, subps. 2 and

14

The Permittee shall operate and maintain the fabric filter at all times that any

emission unit controlled by the fabric filter is in operation. The Permittee shall

document periods of non-operation of the control equipment.

7.0
MINNESOTA POLLUTION CONTROL AGENCY

AIR QUALITY

520 LAFAYETTE ROAD

ST. PAUL, MN 55155-4194 COMPLIANCE PLAN CD-01

Facility Name: Gopher Resource LLC

Permit Number: 03700016 - 003

Page 26 of 39 11 May, 2010 12:41

Subject Item: CE 001 Wet Scrubber-High Efficiency

Associated Items: EU 001 Raw Material Processing Operation

NC/

CA

Type Citation Requirement

CD Minn. R. 7007.0800, subps. 2 and

14

The Permittee shall operate and maintain the scrubber (CE001) at any time that the

process equipment controlled by the scrubber (EU001) is in operation. The

Permittee shall document periods of non-operation of the control equipment.

1.0

CD Minn. R. 7007.0800, subp. 14 The Permittee shall operate and maintain the scrubber in accordance with the

Operation and Maintenance (O & M) Plan. The Permittee shall keep copies of the

O & M Plan available for use by staff and MPCA staff.

2.0

LIMIT Minn. R. 7007.0800, subps. 2 and

14

Pressure Drop: greater than or equal to 0.10 inches of water column and less than

or equal to 6.0 inches of water column , unless a new range is set pursuant to

Minn. R. 7017.2025, subp. 3 based on the values recorded during the most recent

MPCA-approved performance test where compliance was demonstrated. The new

range shall be implemented upon receipt of the Notice of Compliance letter

granting preliminary approval. The range is final upon issuance of a permit

amendment incorporating the change. The Permittee shall record the pressure drop

at least once every 24 hours when in operation.

3.0

LIMIT Minn. R. 7007.0800, subps. 2 and

14

Water flow rate: greater than or equal to 8.0 gallons/minute and less than or equal

to 9.0 gallons/minute , unless a new range is set pursuant to Minn. R. 7017.2025,

subp. 3 based on the values recorded during the most recent MPCA-approved

performance test where compliance was demonstrated. The new range shall be

implemented upon receipt of the Notice of Compliance letter granting preliminary

approval. The range is final upon issuance of a permit amendment incorporating

the change. The Permittee shall record the water flow rate at least once every 24

hours when in operation.

4.0

CD Minn. R. 7007.0800, subps. 4 and

5

Recordkeeping of Pressure Drop. The Permittee shall record the time and date of

each pressure drop reading and whether or not the recorded pressure drop was

within the range specified in this permit. Recorded values outside the range

specified in this permit are considered Deviations as defined by Minn. R.

7007.0100, subp. 8a.

5.0

CD Minn. R. 7007.0800, subps. 4 and

5

Recordkeeping of Water Flow Rate. The Permittee shall record the time and date of

each water flow rate reading and whether or not the recorded water flow rate was

within the range specified in this permit. Recorded values outside the range

specified in this permit are considered Deviations as defined by Minn. R.

7007.0100, subp. 8a.

6.0

CD Minn. R. 7007.0800, subp. 4 Monitoring Equipment: The Permittee shall install and maintain the necessary

monitoring equipment for measuring and recording pressure drops, water

pressures, and water flow rates required by this permit. The monitoring equipment

must be installed, in use, and properly maintained when the monitored scrubber is

in operation.

7.0

CD Minn. R. 7007.0800, subps. 4, 5

and 14

Periodic Inspections: At least once per calendar quarter, or more frequently as

required by the manufacturing specifications, the Permittee shall inspect the control

equipment components. The Permittee shall maintain a written record of these

inspections.

8.0

CD Minn. R. 7007.0800, subps. 4, 5,

and 14

Corrective Actions: The Permittee shall take corrective action as soon as possible if

any of the following occur:

- the recorded pressure drop is outside the required operating range;

- the recorded water flow rate is outside the required operating range;

- the recorded water pressure is outside the required operating range; or

- the scrubber or any of its components are found during the inspections to need

repair.

Corrective actions shall return the pressure drop, water flow rate, and/or water

pressure to within the permitted range; and/or include completion of necessary

repairs identified during the inspection, as applicable. Corrective actions include,

but are not limited to, those outlined in the O & M Plan for the scrubber. The

Permittee shall keep a record of the type and date of any corrective action taken for

the scrubber.

9.0
MINNESOTA POLLUTION CONTROL AGENCY

AIR QUALITY

520 LAFAYETTE ROAD

ST. PAUL, MN 55155-4194 COMPLIANCE PLAN CD-01

Facility Name: Gopher Resource LLC

Permit Number: 03700016 - 003

Page 27 of 39 11 May, 2010 12:41

Subject Item: CE 002 Fabric Filter - Low Temperature, i.e., T<180 Degrees F

Associated Items: FS 001 Furnace Area Process Fugitives

FS 005 Casting Machine Process Fugitives

FS 006 Refining Area Fugitive Dust Sources

GP 004 NESHAP Subpart X Control Equipment Monitoring Requirements

GP 008 Torit Filter Banks

NC/

CA

Type Citation Requirement

CD Minn. R. 7007.0800, subp. 14; 40

CFR Section 63.548(a); Minn. R.

7011.7240

The Permittee shall operate and maintain the fabric filter in accordance with the

Operation and Maintenance (O & M) Plan. The Permittee shall keep copies of the

O & M Plan available onsite for use by staff and MPCA staff.

1.0

CD Title I Condition: State

Implementation Plan (SIP) for

Lead NAAQS; 40 CFR pt. 50; 40

CFR pt. 51; 40 CFR pt. 52, subp.

Y; MN SIP

Air Pollution Control Equipment Monitors: The owner or operator shall operate and

maintain pressure drop gauges and broken media detectors, to measure pressure

drop across the cartridge filters and baghouse cells in inches of water and an

increase in particulate grain loading at each baghouse and cartridge filter outlet.

Each broken media detector shall be equipped with a device that continually

records grain loading, and an alarm that alerts the owner or operator of increases in

grain loading.

Alarm Triggers: In the event that the alarm on a broken media detector is triggered,

the owner or operator shall immediately isolate the cartridge bank or baghouse cell

for which the alarm was triggered as described in Appendix G of this permit.

See Also Subject Item GP004, for additional broken media detection requirements

(NESHAP Subpart X)

2.0

CD Title I Condition: State

Implementation Plan (SIP) for

Lead NAAQS; 40 CFR pt. 50; 40

CFR pt. 51; 40 CFR pt. 52, subp.

Y; MN SIP; 40 CFR Section

63.548(h)

Broken media detectors are not required for cartridge collectors used exclusively

for the control of fugitive dust emissions from any source subject to the lead

emissions standard in 40 CFR Section 63.545. (THIS REQUIREMENT WILL

BECOME EFFECTIVE THE DATE EPA APPROVES THE REVISION INTO THE

SIP.)

3.0

LIMIT Minn. R. 7007.0800, subps. 2 and

14

The Permittee shall operate and maintain the control equipment such that it

achieves an overall control efficiency for Total Particulate Matter: greater than or

equal to 99 percent control efficiency

4.0

LIMIT Minn. R. 7007.0800, subps. 2 and

14

The Permittee shall operate and maintain the control equipment such that it

achieves an overall control efficiency for PM < 10 micron: greater than or equal to

99 percent control efficiency

5.0

LIMIT Minn. R. 7007.0800, subps. 2 and

14

The Permittee shall operate and maintain the control equipment such that it

achieves an overall control efficiency for PM < 2.5 micron: greater than or equal to

99 percent control efficiency

6.0

LIMIT Title I Condition: State

Implementation Plan (SIP) for

Lead NAAQS; 40 CFR pt. 50; 40

CFR pt. 51; 40 CFR pt. 52, subp.

Y; MN SIP

Pressure Drop: greater than or equal to 0.5 inches of water column and less than or

equal to 15.0 inches of water column , unless a new range is set pursuant to Minn.

R. 7017.2025, subp. 3 based on the values recorded during the most recent

MPCA-approved performance test where compliance was demonstrated. The new

range shall be implemented upon receipt of the Notice of Compliance letter

granting preliminary approval. The range is final upon issuance of a permit

amendment incorporating the change.

7.0

CD Minn. R. 7007.0800, subps. 2 and

14; Minn. R. 7017.0200; 40 CFR

Section 63.548(c)(1)

Daily Inspections: The Permittee shall read and record the pressure drop across

the fabric filter, once every 24 hours.

8.0

CD Minn. R. 7007.0800, subps. 2 and

14

Recordkeeping of Pressure Drop: The Permittee shall record the time and date of

each pressure drop reading, and whether or not the observed pressure drop was

within the range specified in this permit. Recorded values outside the range

specified in this permit are considered Deviations as defined by Minn. R.

7007.0100, subp. 8a.

9.0

CD Title I Condition: State

Implementation Plan (SIP) for

Lead NAAQS; 40 CFR pt. 50; 40

CFR pt. 51; 40 CFR pt. 52, subp.

Y; MN SIP

Periodic Inspections: The Permittee shall inspect the fabric filter as described in

Appendix K.

10.0
MINNESOTA POLLUTION CONTROL AGENCY

AIR QUALITY

520 LAFAYETTE ROAD

ST. PAUL, MN 55155-4194 COMPLIANCE PLAN CD-01

Facility Name: Gopher Resource LLC

Permit Number: 03700016 - 003

Page 28 of 39 11 May, 2010 12:41

CD Minn. R. 7007.0800, subps. 4, 5,

and 14

Corrective Actions: The Permittee shall take corrective action as soon as possible if

any of the following occur:

- the recorded pressure drop is outside the required operating range; or

- the filter or any of its components are found during the inspections to need repair.

Corrective actions shall return the pressure drop to within the permitted range,

and/or include completion of necessary repairs identified during the inspection, as

applicable. Corrective actions include, but are not limited to, those outlined in the O

& M Plan for the filter. The Permittee shall keep a record of the type and date of

any corrective action taken for each filter.

11.0

CD Title I Condition: State

Implementation Plan (SIP) for

Lead NAAQS; 40 CFR pt. 50; 40

CFR pt. 51; 40 CFR pt. 52, subp.

Y; MN SIP

The Permittee shall monthly test each pressure drop gauge and broken media

detector, clean the broken media detector, and repair and replace gauges and

detectors in accordance with Appendix G. The Permittee shall maintain records of

such testing and actions taken as a result of the testing.

12.0
MINNESOTA POLLUTION CONTROL AGENCY

AIR QUALITY

520 LAFAYETTE ROAD

ST. PAUL, MN 55155-4194 COMPLIANCE PLAN CD-01

Facility Name: Gopher Resource LLC

Permit Number: 03700016 - 003

Page 29 of 39 11 May, 2010 12:41

Subject Item: CE 003 Fabric Filter - Low Temperature, i.e., T<180 Degrees F

Associated Items: FS 001 Furnace Area Process Fugitives

GP 004 NESHAP Subpart X Control Equipment Monitoring Requirements

GP 008 Torit Filter Banks

NC/

CA

Type Citation Requirement

CD Minn. R. 7007.0800, subp. 14; 40

CFR Section 63.548(a); Minn. R.

7011.7240

The Permittee shall operate and maintain the fabric filter in accordance with the

Operation and Maintenance (O & M) Plan. The Permittee shall keep copies of the

O & M Plan available onsite for use by staff and MPCA staff.

1.0

CD Title I Condition: State

Implementation Plan (SIP) for

Lead NAAQS; 40 CFR pt. 50; 40

CFR pt. 51; 40 CFR pt. 52, subp.

Y; MN SIP

Air Pollution Control Equipment Monitors: The owner or operator shall operate and

maintain pressure drop gauges and broken media detectors, to measure pressure

drop across the cartridge filters and baghouse cells in inches of water and an

increase in particulate grain loading at each baghouse and cartridge filter outlet.

Each broken media detector shall be equipped with a device that continually

records grain loading, and an alarm that alerts the owner or operator of increases in

grain loading.

Alarm Triggers: In the event that the alarm on a broken media detector is triggered,

the owner or operator shall immediately isolate the cartridge bank or baghouse cell

for which the alarm was triggered as described in Appendix G of this permit.

See Also Subject Item GP004, for additional broken media detection requirements

(NESHAP Subpart X)

2.0

LIMIT Minn. R. 7007.0800, subps. 2 and

14

The Permittee shall operate and maintain the control equipment such that it

achieves an overall control efficiency for Total Particulate Matter: greater than or

equal to 99 percent control efficiency

3.0

LIMIT Minn. R. 7007.0800, subps. 2 and

14

The Permittee shall operate and maintain the control equipment such that it

achieves an overall control efficiency for PM < 10 micron: greater than or equal to

99 percent control efficiency

4.0

LIMIT Minn. R. 7007.0800, subps. 2 and

14

The Permittee shall operate and maintain the control equipment such that it

achieves an overall control efficiency for PM < 2.5 micron: greater than or equal to

99 percent control efficiency

5.0

LIMIT Title I Condition: State

Implementation Plan (SIP) for

Lead NAAQS; 40 CFR pt. 50; 40

CFR pt. 51; 40 CFR pt. 52, subp.

Y; MN SIP

Pressure Drop: greater than or equal to 0.5 inches of water column and less than or

equal to 15.0 inches of water column , unless a new range is set pursuant to Minn.

R. 7017.2025, subp. 3 based on the values recorded during the most recent

MPCA-approved performance test where compliance was demonstrated. The new

range shall be implemented upon receipt of the Notice of Compliance letter

granting preliminary approval. The range is final upon issuance of a permit

amendment incorporating the change.

6.0

CD Minn. R. 7007.0800, subps. 2 and

14; Minn. R. 7017.0200; 40 CFR

Section 63.548(c)(1)

Daily Inspections: The Permittee shall read and record the pressure drop across

the fabric filter, once every 24 hours.

7.0

CD Minn. R. 7007.0800, subps. 2 and

14

Recordkeeping of Pressure Drop: The Permittee shall record the time and date of

each pressure drop reading, and whether or not the observed pressure drop was

within the range specified in this permit. Recorded values outside the range

specified in this permit are considered Deviations as defined by Minn. R.

7007.0100, subp. 8a.

8.0

CD Title I Condition: State

Implementation Plan (SIP) for

Lead NAAQS; 40 CFR pt. 50; 40

CFR pt. 51; 40 CFR pt. 52, subp.

Y; MN SIP

Periodic Inspections: The Permittee shall inspect the fabric filter as described in

Appendix K.

9.0

CD Minn. R. 7007.0800, subps. 4, 5,

and 14

Corrective Actions: The Permittee shall take corrective action as soon as possible if

any of the following occur:

- the recorded pressure drop is outside the required operating range; or

- the filter or any of its components are found during the inspections to need repair.

Corrective actions shall return the pressure drop to within the permitted range,

and/or include completion of necessary repairs identified during the inspection, as

applicable. Corrective actions include, but are not limited to, those outlined in the O

& M Plan for the filter. The Permittee shall keep a record of the type and date of

any corrective action taken for each filter.

10.0
MINNESOTA POLLUTION CONTROL AGENCY

AIR QUALITY

520 LAFAYETTE ROAD

ST. PAUL, MN 55155-4194 COMPLIANCE PLAN CD-01

Facility Name: Gopher Resource LLC

Permit Number: 03700016 - 003

Page 30 of 39 11 May, 2010 12:41

CD Title I Condition: State

Implementation Plan (SIP) for

Lead NAAQS; 40 CFR pt. 50; 40

CFR pt. 51; 40 CFR pt. 52, subp.

Y; MN SIP

The Permittee shall monthly test each pressure drop gauge and broken media

detector, clean the broken media detector, and repair and replace gauges and

detectors in accordance with Appendix G. The Permittee shall maintain records of

such testing and actions taken as a result of the testing.

11.0
MINNESOTA POLLUTION CONTROL AGENCY

AIR QUALITY

520 LAFAYETTE ROAD

ST. PAUL, MN 55155-4194 COMPLIANCE PLAN CD-01

Facility Name: Gopher Resource LLC

Permit Number: 03700016 - 003

Page 31 of 39 11 May, 2010 12:41

Subject Item: CE 004 Fabric Filter - High Temperature, i.e., T>250 Degrees F

Associated Items: EU 004 West Reverberatory Furnace

EU 007 East Reverberatory Furnace 

EU 009 Blast Furnace 

EU 011 Refining Kettle No. 1

EU 012 Refining Kettle No. 2

EU 013 Refining Kettle No. 3

EU 014 Refining Kettle No. 4

EU 015 Refining Kettle No. 5

EU 016 Refining Kettle No. 6

EU 017 Refining Kettle No. 7

EU 018 Refining Kettle No. 8

EU 019 Refining Kettle No. 9

EU 020 Refining Kettle No. 10

FS 003 East Reverberatory Furnace Process Fugitives

FS 004 Blast Furnace Process Fugitives

GP 004 NESHAP Subpart X Control Equipment Monitoring Requirements

NC/

CA

Type Citation Requirement

CD Minn. R. 7007.0800, subps. 2 and

14

The Permittee shall operate and maintain the fabric filters (CE004 and CE005) at

all times that any associated emission unit is in operation, unless negative pressure

in the building can be maintained while the filter is not in operation. If either of

CE004 or CE005 is one of two or more filters that are not operating while any unit

listed above under "Associated Items" is operating, the Permittee shall follow the

procedures in Appendix H for demonstrating that the building is under negative

pressure. The Permittee shall document periods of non-operation of the control

equipment that result in loss of building negative pressure, and take immediate

corrective action as described in Appendix H.

1.0

CD Minn. R. 7007.0800, subp. 14; 40

CFR Section 63.548(a); Minn. R.

7011.7240

The Permittee shall operate and maintain the fabric filter in accordance with the

Operation and Maintenance (O & M) Plan. The Permittee shall keep copies of the

O & M Plan available onsite for use by staff and MPCA staff.

2.0

CD Title I Condition: State

Implementation Plan (SIP) for

Lead NAAQS; 40 CFR pt. 50; 40

CFR pt. 51; 40 CFR pt. 52, subp.

Y; MN SIP

Air Pollution Control Equipment Monitors: The Permittee shall operate and

maintain pressure drop gauges and broken media detectors, to measure pressure

drop across the cartridge filters and baghouse cells in inches of water and an

increase in particulate grain loading at each baghouse and cartridge filter outlet.

Each broken media detector shall be equipped with a device that continually

records grain loading, and an alarm that alerts the owner or operator of increases in

grain loading.

Alarm Triggers: In the event that the alarm on a broken media detector is triggered,

the owner or operator shall immediately isolate the cartridge bank or baghouse cell

for which the alarm was triggered as described in Appendix G of this permit.

See Also Subject Item GP004, for additional broken media detection requirements

(NESHAP Subpart X)

3.0

LIMIT Minn. R. 7007.0800, subps. 2 and

14

The Permittee shall operate and maintain the control equipment such that it

achieves an overall control efficiency for Total Particulate Matter: greater than or

equal to 99 percent control efficiency

4.0

LIMIT Minn. R. 7007.0800, subps. 2 and

14

The Permittee shall operate and maintain the control equipment such that it

achieves an overall control efficiency for PM < 10 micron: greater than or equal to

99 percent control efficiency

5.0

LIMIT Minn. R. 7007.0800, subps. 2 and

14

The Permittee shall operate and maintain the control equipment such that it

achieves an overall control efficiency for PM < 2.5 micron: greater than or equal to

99 percent control efficiency

6.0
MINNESOTA POLLUTION CONTROL AGENCY

AIR QUALITY

520 LAFAYETTE ROAD

ST. PAUL, MN 55155-4194 COMPLIANCE PLAN CD-01

Facility Name: Gopher Resource LLC

Permit Number: 03700016 - 003

Page 32 of 39 11 May, 2010 12:41

LIMIT Title I Condition: State

Implementation Plan (SIP) for

Lead NAAQS; 40 CFR pt. 50; 40

CFR pt. 51; 40 CFR pt. 52, subp.

Y; MN SIP

Pressure Drop: greater than or equal to 1.0 inches of water column and less than or

equal to 10.0 inches of water column , unless a new range is set pursuant to Minn.

R. 7017.2025, subp. 3 based on the values recorded during the most recent

MPCA-approved performance test where compliance was demonstrated. The new

range shall be implemented upon receipt of the Notice of Compliance letter

granting preliminary approval. The range is final upon issuance of a permit

amendment incorporating the change.

7.0

CD Minn. R. 7007.0800, subps. 2 and

14; 40 CFR Section 64.3; Minn. R.

7017.0200; 40 CFR Section

63.548(c)(1)

Daily Inspections: The Permittee shall read and record the pressure drop across

the fabric filter, once every 24 hours.

8.0

CD Minn. R. 7007.0800, subps. 2 and

14; 40 CFR Section 64.3; Minn. R.

7017.0200

Recordkeeping of Pressure Drop: The Permittee shall record the time and date of

each pressure drop reading, and whether or not the observed pressure drop was

within the range specified in this permit. Recorded values outside the range

specified in this permit are considered Deviations as defined by Minn. R.

7007.0100, subp. 8a.

9.0

CD Title I Condition: State

Implementation Plan (SIP) for

Lead NAAQS; 40 CFR pt. 50; 40

CFR pt. 51; 40 CFR pt. 52, subp.

Y; MN SIP; 40 CFR Section 64.3;

Minn. R. 7017.0200

Periodic Inspections: The Permittee shall inspect the fabric filter as described in

Appendix K.

10.0

CD 40 CFR Section 64.7(d); Minn. R.

7017.0200

Corrective Actions: The Permittee shall take corrective action as soon as possible if

any of the following occur:

- the recorded pressure drop is outside the required operating range; or

- the fabric filter or any of its components are found during the inspections to need

repair.

Corrective actions shall return the pressure drop to within the permitted range,

and/or include completion of necessary repairs identified during the inspection, as

applicable. Corrective actions include, but are not limited to, those outlined in the O

& M Plan for the fabric filter. The Permittee shall keep a record of the type and date

of any corrective action taken for each filter.

11.0

CD 40 CFR Section 64.7(b); Minn. R.

7017.0200

Monitoring Equipment: The Permittee shall install and maintain the necessary

monitoring equipment for measuring and recording pressure drop as required by

this permit. The monitoring equipment must be installed, in use, and properly

maintained when the monitored fabric filter is in operation.

12.0

CD Title I Condition: State

Implementation Plan (SIP) for

Lead NAAQS; 40 CFR pt. 50; 40

CFR pt. 51; 40 CFR pt. 52, subp.

Y; MN SIP

The Permittee shall monthly test each pressure drop gauge and broken media

detector, clean the broken media detector, and repair and replace gauges and

detectors in accordance with Appendix G. The Permittee shall maintain records of

such testing and actions taken as a result of the testing.

13.0

CD 40 CFR Section 64.3; Minn. R.

7017.0200

The Permittee shall calibrate the pressure gauge at least once every 12 months

and shall maintain a written record of any action resulting from the calibration.

14.0

CD 40 CFR Section 64.7(e); Minn. R.

7017.0200

Documentation of Need for Improved Monitoring: If the Permittee fails to achieve

compliance with an emission limitation or standard for which the monitoring did not

provide an indication of an excursion or exceedance while providing valid data, or

the results of compliance or performance testing document a need to modify the

existing pressure drop range, the Permittee shall promptly notify the MPCA and, if

necessary, submit a permit amendment application to address the necessary

monitoring change.

15.0

CD 40 CFR Section 64.9(a)(2); Minn.

R. 7017.0200

As required by 40 CFR Section 64.9(a)(2), for the Semi-Annual Deviations Report

listed in Table B of this permit and/or the Notification of Deviations Endangering

Human Health and the Environment listed earlier in Table A of this permit, as

applicable, the Permittee shall include the following related to the monitoring

identified as required by 40 CFR pt. 64: 1) Summary information on the number,

duration, and cause of excursions or exceedances, as applicable, and the

corrective action taken; and 2) Summary information on the number, duration, and

cause for monitor downtime incidents.

16.0

CD 40 CFR Section 64.9(b); Minn. R.

7017.0200

The Permittee shall maintain records of monitoring data, monitor performance data,

corrective actions taken, and other supporting information required to be

maintained. The Permittee may maintain records on alternative media, such as

microfilm, computer files, magnetic tape disks, or microfiche, provided that the use

of such alternative media allows for expeditious inspection and review, and does

not conflict with other applicable recordkeeping requirements.

17.0
MINNESOTA POLLUTION CONTROL AGENCY

AIR QUALITY

520 LAFAYETTE ROAD

ST. PAUL, MN 55155-4194 COMPLIANCE PLAN CD-01

Facility Name: Gopher Resource LLC

Permit Number: 03700016 - 003

Page 33 of 39 11 May, 2010 12:41

Subject Item: CE 005 Fabric Filter - High Temperature, i.e., T>250 Degrees F

Associated Items: EU 004 West Reverberatory Furnace

EU 006 Scrap Dryer

EU 007 East Reverberatory Furnace 

EU 009 Blast Furnace 

FS 002 West Reverberatory Furnace Process Fugitives

FS 003 East Reverberatory Furnace Process Fugitives

GP 004 NESHAP Subpart X Control Equipment Monitoring Requirements

NC/

CA

Type Citation Requirement

CD Minn. R. 7007.0800, subps. 2 and

14

The Permittee shall operate and maintain the fabric filters (CE004 and CE005) at

all times that any associated emission unit is in operation, unless negative pressure

in the building can be maintained while the filter is not in operation. If either of

CE004 or CE005 is one of two or more filters that are not operating while any unit

listed above under "Associated Items" is operating, the Permittee shall follow the

procedures in Appendix H for demonstrating that the building is under negative

pressure. The Permittee shall document periods of non-operation of the control

equipment that result in loss of building negative pressure, and take immediate

corrective action as described in Appendix H.

1.0

CD Minn. R. 7007.0800, subp. 14; 40

CFR Section 63.548(a); Minn. R.

7011.7240

The Permittee shall operate and maintain the fabric filter in accordance with the

Operation and Maintenance (O & M) Plan. The Permittee shall keep copies of the

O & M Plan available onsite for use by staff and MPCA staff.

2.0

CD Title I Condition: State

Implementation Plan (SIP) for

Lead NAAQS; 40 CFR pt. 50; 40

CFR pt. 51; 40 CFR pt. 52, subp.

Y; MN SIP

Air Pollution Control Equipment Monitors: The Permittee shall operate and

maintain pressure drop gauges and broken media detectors, to measure pressure

drop across the cartridge filters and baghouse cells in inches of water and an

increase in particulate grain loading at each baghouse and cartridge filter outlet.

Each broken media detector shall be equipped with a device that continually

records grain loading, and an alarm that alerts the owner or operator of increases in

grain loading.

Alarm Triggers: In the event that the alarm on a broken media detector is triggered,

the owner or operator shall immediately isolate the cartridge bank or baghouse cell

for which the alarm was triggered as described in Appendix G of this permit.

See Also Subject Item GP004, for additional broken media detection requirements

(NESHAP Subpart X)

3.0

LIMIT Minn. R. 7007.0800, subps. 2 and

14

The Permittee shall operate and maintain the control equipment such that it

achieves an overall control efficiency for Total Particulate Matter: greater than or

equal to 99 percent control efficiency

4.0

LIMIT Minn. R. 7007.0800, subps. 2 and

14

The Permittee shall operate and maintain the control equipment such that it

achieves an overall control efficiency for PM < 10 micron: greater than or equal to

99 percent control efficiency

5.0

LIMIT Minn. R. 7007.0800, subps. 2 and

14

The Permittee shall operate and maintain the control equipment such that it

achieves an overall control efficiency for PM < 2.5 micron: greater than or equal to

99 percent control efficiency

6.0

LIMIT Title I Condition: State

Implementation Plan (SIP) for

Lead NAAQS; 40 CFR pt. 50; 40

CFR pt. 51; 40 CFR pt. 52, subp.

Y; MN SIP

Pressure Drop: greater than or equal to 1.0 inches of water column and less than or

equal to 10.0 inches of water column , unless a new range is set pursuant to Minn.

R. 7017.2025, subp. 3 based on the values recorded during the most recent

MPCA-approved performance test where compliance was demonstrated. The new

range shall be implemented upon receipt of the Notice of Compliance letter

granting preliminary approval. The range is final upon issuance of a permit

amendment incorporating the change.

7.0

CD Minn. R. 7007.0800, subps. 2 and

14; 40 CFR Section 64.3; Minn. R.

7017.0200; 40 CFR Section

63.548(c)(1)

Daily Inspections: The Permittee shall read and record the pressure drop across

the fabric filter, once every 24 hours.

8.0

CD Minn. R. 7007.0800, subps. 2 and

14; 40 CFR Section 64.3; Minn. R.

7017.0200

Recordkeeping of Pressure Drop: The Permittee shall record the time and date of

each pressure drop reading, and whether or not the observed pressure drop was

within the range specified in this permit. Recorded values outside the range

specified in this permit are considered Deviations as defined by Minn. R.

7007.0100, subp. 8a.

9.0
MINNESOTA POLLUTION CONTROL AGENCY

AIR QUALITY

520 LAFAYETTE ROAD

ST. PAUL, MN 55155-4194 COMPLIANCE PLAN CD-01

Facility Name: Gopher Resource LLC

Permit Number: 03700016 - 003

Page 34 of 39 11 May, 2010 12:41

CD Title I Condition: State

Implementation Plan (SIP) for

Lead NAAQS; 40 CFR pt. 50; 40

CFR pt. 51; 40 CFR pt. 52, subp.

Y; MN SIP; 40 CFR Section 64.3;

Minn. R. 7017.0200

Periodic Inspections: The Permittee shall inspect the fabric filter as described in

Appendix K.

10.0

CD 40 CFR Section 64.7(d); Minn. R.

7017.0200

Corrective Actions: The Permittee shall take corrective action as soon as possible if

any of the following occur:

- the recorded pressure drop is outside the required operating range; or

- the fabric filter or any of its components are found during the inspections to need

repair.

Corrective actions shall return the pressure drop to within the permitted range,

and/or include completion of necessary repairs identified during the inspection, as

applicable. Corrective actions include, but are not limited to, those outlined in the O

& M Plan for the fabric filter. The Permittee shall keep a record of the type and date

of any corrective action taken for each filter.

11.0

CD 40 CFR Section 64.7(b); Minn. R.

7017.0200

Monitoring Equipment: The Permittee shall install and maintain the necessary

monitoring equipment for measuring and recording pressure drop as required by

this permit. The monitoring equipment must be installed, in use, and properly

maintained when the monitored fabric filter is in operation.

12.0

CD Title I Condition: State

Implementation Plan (SIP) for

Lead NAAQS; 40 CFR pt. 50; 40

CFR pt. 51; 40 CFR pt. 52, subp.

Y; MN SIP

The Permittee shall monthly test each pressure drop gauge and broken media

detector, clean the broken media detector, and repair and replace gauges and

detectors in accordance with Appendix G. The Permittee shall maintain records of

such testing and actions taken as a result of the testing.

13.0

CD 40 CFR Section 64.3; Minn. R.

7017.0200

The Permittee shall calibrate the pressure gauge at least once every 12 months

and shall maintain a written record of any action resulting from the calibration.

14.0

CD 40 CFR Section 64.7(e); Minn. R.

7017.0200

Documentation of Need for Improved Monitoring: If the Permittee fails to achieve

compliance with an emission limitation or standard for which the monitoring did not

provide an indication of an excursion or exceedance while providing valid data, or

the results of compliance or performance testing document a need to modify the

existing pressure drop range, the Permittee shall promptly notify the MPCA and, if

necessary, submit a permit amendment application to address the necessary

monitoring change.

15.0

CD 40 CFR Section 64.9(a)(2); Minn.

R. 7017.0200

As required by 40 CFR Section 64.9(a)(2), for the Semi-Annual Deviations Report

listed in Table B of this permit and/or the Notification of Deviations Endangering

Human Health and the Environment listed earlier in Table A of this permit, as

applicable, the Permittee shall include the following related to the monitoring

identified as required by 40 CFR pt. 64: 1) Summary information on the number,

duration, and cause of excursions or exceedances, as applicable, and the

corrective action taken; and 2) Summary information on the number, duration, and

cause for monitor downtime incidents.

16.0

CD 40 CFR Section 64.9(b); Minn. R.

7017.0200

The Permittee shall maintain records of monitoring data, monitor performance data,

corrective actions taken, and other supporting information required to be

maintained. The Permittee may maintain records on alternative media, such as

microfilm, computer files, magnetic tape disks, or microfiche, provided that the use

of such alternative media allows for expeditious inspection and review, and does

not conflict with other applicable recordkeeping requirements.

17.0
MINNESOTA POLLUTION CONTROL AGENCY

AIR QUALITY

520 LAFAYETTE ROAD

ST. PAUL, MN 55155-4194 COMPLIANCE PLAN CD-01

Facility Name: Gopher Resource LLC

Permit Number: 03700016 - 003

Page 35 of 39 11 May, 2010 12:41

Subject Item: CE 006 Fabric Filter - Low Temperature, i.e., T<180 Degrees F

Associated Items: EU 021 Soda Ash Storage Bin

NC/

CA

Type Citation Requirement

CD Minn. R. 7007.0800, subps. 2 and

14

The Permittee shall operate and maintain the fabric filter at all times that any

emission unit controlled by the fabric filter is in operation. The Permittee shall

document periods of non-operation of the control equipment.

1.0

CD Minn. R. 7007.0800, subp. 14 The Permittee shall operate and maintain the fabric filter in accordance with the

Operation and Maintenance (O & M) Plan. The Permittee shall keep copies of the

O & M Plan available onsite for use by staff and MPCA staff.

2.0

LIMIT Minn. R. 7007.0800, subps. 2 and

14

The Permittee shall operate and maintain the control equipment such that it

achieves an overall control efficiency for Total Particulate Matter: greater than or

equal to 99 percent control efficiency

3.0

LIMIT Minn. R. 7007.0800, subps. 2 and

14

The Permittee shall operate and maintain the control equipment such that it

achieves an overall control efficiency for PM < 10 micron: greater than or equal to

99 percent control efficiency

4.0

LIMIT Minn. R. 7007.0800, subps. 2 and

14

The Permittee shall operate and maintain the control equipment such that it

achieves an overall control efficiency for PM < 2.5 micron: greater than or equal to

99 percent control efficiency

5.0

CD Minn. R. 7007.0800, subp. 4 Monitoring Equipment: The Permittee shall install and maintain the necessary

monitoring equipment for measuring and recording pressure drop as required by

this permit. The monitoring equipment must be installed, in use, and properly

maintained when the monitored fabric filter is in operation.

6.0

CD Minn. R. 7007.0800, subps. 4 and

5

Visible Emissions: The Permittee shall check the fabric filter stack (SV004) for any

visible emissions once each day of operation during daylight hours. During

inclement weather, the Permittee shall read and record the pressure drop across

the fabric filter, once each day of operation.

7.0

LIMIT Minn. R. 7007.0800, subps. 2 and

14

Pressure Drop: greater than or equal to 1.0 inches of water column and less than or

equal to 7.0 inches of water column , unless a new range is set pursuant to Minn.

R. 7017.2025, subp. 3 based on the values recorded during the most recent

MPCA-approved performance test where compliance was demonstrated. The new

range shall be implemented upon receipt of the Notice of Compliance letter

granting preliminary approval. The range is final upon issuance of a permit

amendment incorporating the change.

8.0

CD Minn. R. 7007.0800, subps. 4 and

5

Recordkeeping of Visible Emissions and Pressure Drop. The Permittee shall record

the time and date of each visible emission inspection and pressure drop reading,

and whether or not any visible emissions were observed, and whether or not the

observed pressure drop was within the range specified in this permit

9.0

CD Minn. R. 7007.0800, subps. 4, 5

and 14

Periodic Inspections: At least once per calendar quarter, or more frequently as

required by the manufacturing specifications, the Permittee shall inspect the control

equipment components. The Permittee shall maintain a written record of these

inspections.

10.0

CD Minn. R. 7007.0800, subps. 4, 5,

and 14

Corrective Actions: The Permittee shall take corrective action as soon as possible if

any of the following occur:

- visible emissions are observed;

- the recorded pressure drop is outside the required operating range; or

- the fabric filter or any of its components are found during the inspections to need

repair.

Corrective actions shall return the pressure drop to within the permitted range,

eliminate visible emissions, and/or include completion of necessary repairs

identified during the inspection, as applicable. Corrective actions include, but are

not limited to, those outlined in the O & M Plan for the fabric filter. The Permittee

shall keep a record of the type and date of any corrective action taken for the filter.

11.0
MINNESOTA POLLUTION CONTROL AGENCY

AIR QUALITY

520 LAFAYETTE ROAD

ST. PAUL, MN 55155-4194 COMPLIANCE PLAN CD-01

Facility Name: Gopher Resource LLC

Permit Number: 03700016 - 003

Page 36 of 39 11 May, 2010 12:41

Subject Item: CE 007 Afterburner

Associated Items: EU 007 East Reverberatory Furnace 

EU 009 Blast Furnace 

NC/

CA

Type Citation Requirement

1.0 CD hdr CE007 MONITORING REQUIREMENTS

CD 40 CFR Section 63.548(j); Minn.

R. 7011.7240

The owner or operator of a blast furnace or collocated blast furnace and

reverberatory furnace subject to the total hydrocarbon standards in 40 CFR Section

63.543(c), (d), or (e) must comply with the requirements of either 40 CFR Section

63.548(j)(1) or (j)(2), to demonstrate continuous compliance with the total

hydrocarbon emission standards. The Permittee proposed an alternative monitoring

plan of monitoring reverberatory furnace natural gas flow instead of continuous

temperature. This plan was approved by the EPA on July 29, 1998.

2.0

CD 40 CFR Section 63.8(f)

[Alternative Monitoring Method]

Gopher Resource shall continuously record and monitor the natural gas or propane

usage for the east reverberatory furnace.

3.0

CD 40 CFR Section 63.8(f)

[Alternative Monitoring Method]

Methodology: The owner or operator shall calculate 3-hour arithmetic average of

the natural gas usage and the afterburner temperature from the 15-minute

readings. The compliance demonstration shall follow the test protocol, and show

compliance with the 20 ppm THC standard when the blast furnace and the east

reverberatory furnace both operate.

4.0

CD 40 CFR Section 63.8(f)

[Alternative Monitoring Method]

Whenever the blast furnace and the east reverberatory furnace both operating to

show compliance with the THC standard of 20 ppm, Gopher Resource shall:

1. Maintain the natural gas usage at or above the arithmetic average established in

most recent EPA and MPCA approved compliance test.

OR

2. Maintain the propane usage at or above the arithmetic average established in

most recent EPA and MPCA approved compliance test.

5.0

CD 40 CFR Section 63.8(f)

[Alternative Monitoring Method]

Reporting: The owner or operator shall report to U.S. EPA and copy to the MPCA

on a semiannually basis whether any 3-hour arithmetic average natural gas usage

or propane usage is less than the arithmetic average established in the most EPA

and MPCA approved compliance test. Once any 3-hour usage is less than the

established average, report on a quarterly basis until a request to reduce reporting

frequency is approved by the EPA.

6.0

CD 40 CFR Section 63.8(f)

[Alternative Monitoring Method]

Calibration of Continuous Monitoring Device: The Company shall service and

calibrate the monitoring instrument at 1-year intervals and keep records of all

calibrations for at least 5 years.

7.0
MINNESOTA POLLUTION CONTROL AGENCY

AIR QUALITY

520 LAFAYETTE ROAD

ST. PAUL, MN 55155-4194 COMPLIANCE PLAN CD-01

Facility Name: Gopher Resource LLC

Permit Number: 03700016 - 003

Page 37 of 39 11 May, 2010 12:41

Subject Item: CE 008 Fabric Filter - Low Temperature, i.e., T<180 Degrees F

Associated Items: EU 002 Raw Material Handling Operation

FS 001 Furnace Area Process Fugitives

GP 004 NESHAP Subpart X Control Equipment Monitoring Requirements

GP 008 Torit Filter Banks

NC/

CA

Type Citation Requirement

CD Minn. R. 7007.0800, subp. 14; 40

CFR Section 63.548(a); Minn. R.

7011.7240

The Permittee shall operate and maintain the fabric filter in accordance with the

Operation and Maintenance (O & M) Plan. The Permittee shall keep copies of the

O & M Plan available onsite for use by staff and MPCA staff.

1.0

LIMIT Minn. R. 7007.0800, subps. 2 and

14

The Permittee shall operate and maintain the control equipment such that it

achieves an overall control efficiency for Total Particulate Matter: greater than or

equal to 99 percent control efficiency

2.0

LIMIT Minn. R. 7007.0800, subps. 2 and

14

The Permittee shall operate and maintain the control equipment such that it

achieves an overall control efficiency for PM < 10 micron: greater than or equal to

99 percent control efficiency

3.0

LIMIT Minn. R. 7007.0800, subps. 2 and

14

The Permittee shall operate and maintain the control equipment such that it

achieves an overall control efficiency for PM < 2.5 micron: greater than or equal to

99 percent control efficiency

4.0

CD Minn. R. 7007.0800, subp. 4 Monitoring Equipment: The Permittee shall install and maintain the necessary

monitoring equipment for measuring and recording pressure drop as required by

this permit. The monitoring equipment must be installed, in use, and properly

maintained when the monitored fabric filter is in operation.

5.0

LIMIT Minn. R. 7007.0800, subps. 2 and

14

Pressure Drop: greater than or equal to 0.5 inches of water column and less than or

equal to 15.0 inches of water column , unless a new range is set pursuant to Minn.

R. 7017.2025, subp. 3 based on the values recorded during the most recent

MPCA-approved performance test where compliance was demonstrated. The new

range shall be implemented upon receipt of the Notice of Compliance letter

granting preliminary approval. The range is final upon issuance of a permit

amendment incorporating the change.

6.0

CD Minn. R. 7007.0800, subps. 2 and

14; 40 CFR Section 63.548(c)(1);

Minn. R. 7011.7240

The Permittee shall record the pressure drop at least once every 24 hours when in

operation.

7.0

CD Minn. R. 7007.0800, subps. 4 and

5

Recordkeeping of Pressure Drop. The Permittee shall record the time and date of

each pressure drop reading and whether or not the recorded pressure drop was

within the range specified in this permit.

8.0

CD Minn. R. 7007.0800, subps. 4, 5

and 14; 40 CFR Section

63.548(c); Minn. R. 7011.7240

Periodic Inspections: At least once per calendar quarter, or more frequently as

required by the manufacturing specifications and/or 40 CFR Section 63.548(c), the

Permittee shall inspect the control equipment components. The Permittee shall

maintain a written record of these inspections.

9.0

CD Minn. R. 7007.0800, subps. 4, 5,

and 14

Corrective Actions: The Permittee shall take corrective action as soon as possible if

any of the following occur:

- the recorded pressure drop is outside the required operating range; or

- the fabric filter or any of its components are found during the inspections to need

repair.

Corrective actions shall return the pressure drop to within the permitted range,

and/or include completion of necessary repairs identified during the inspection, as

applicable. Corrective actions include, but are not limited to, those outlined in the O

& M Plan for the fabric filter. The Permittee shall keep a record of the type and date

of any corrective action taken for each filter.

10.0
MINNESOTA POLLUTION CONTROL AGENCY

AIR QUALITY

520 LAFAYETTE ROAD

ST. PAUL, MN 55155-4194 COMPLIANCE PLAN CD-01

Facility Name: Gopher Resource LLC

Permit Number: 03700016 - 003

Page 38 of 39 11 May, 2010 12:41

Subject Item: CE 009 Fabric Filter - Low Temperature, i.e., T<180 Degrees F

Associated Items: EU 002 Raw Material Handling Operation

GP 004 NESHAP Subpart X Control Equipment Monitoring Requirements

GP 008 Torit Filter Banks

NC/

CA

Type Citation Requirement

CD Minn. R. 7007.0800, subp. 14; 40

CFR Section 63.548(a); Minn. R.

7011.7240

The Permittee shall operate and maintain the fabric filter in accordance with the

Operation and Maintenance (O & M) Plan. The Permittee shall keep copies of the

O & M Plan available onsite for use by staff and MPCA staff.

1.0

LIMIT Minn. R. 7007.0800, subps. 2 and

14

The Permittee shall operate and maintain the control equipment such that it

achieves an overall control efficiency for Total Particulate Matter: greater than or

equal to 99 percent control efficiency

2.0

LIMIT Minn. R. 7007.0800, subps. 2 and

14

The Permittee shall operate and maintain the control equipment such that it

achieves an overall control efficiency for PM < 10 micron: greater than or equal to

99 percent control efficiency

3.0

LIMIT Minn. R. 7007.0800, subps. 2 and

14

The Permittee shall operate and maintain the control equipment such that it

achieves an overall control efficiency for PM < 2.5 micron: greater than or equal to

99 percent control efficiency

4.0

CD Minn. R. 7007.0800, subp. 4 Monitoring Equipment: The Permittee shall install and maintain the necessary

monitoring equipment for measuring and recording pressure drop as required by

this permit. The monitoring equipment must be installed, in use, and properly

maintained when the monitored fabric filter is in operation.

5.0

LIMIT Minn. R. 7007.0800, subps. 2 and

14

Pressure Drop: greater than or equal to 0.5 inches of water column and less than or

equal to 15.0 inches of water column , unless a new range is set pursuant to Minn.

R. 7017.2025, subp. 3 based on the values recorded during the most recent

MPCA-approved performance test where compliance was demonstrated. The new

range shall be implemented upon receipt of the Notice of Compliance letter

granting preliminary approval. The range is final upon issuance of a permit

amendment incorporating the change.

6.0

CD Minn. R. 7007.0800, subps. 2 and

14; 40 CFR Section 63.548(c)(1);

Minn. R. 7011.7240

The Permittee shall record the pressure drop at least once every 24 hours when in

operation.

7.0

CD Minn. R. 7007.0800, subps. 4 and

5

Recordkeeping of Pressure Drop. The Permittee shall record the time and date of

each pressure drop reading and whether or not the recorded pressure drop was

within the range specified in this permit.

8.0

CD Minn. R. 7007.0800, subps. 4, 5

and 14; 40 CFR Section

63.548(c); Minn. R. 7011.7240

Periodic Inspections: At least once per calendar quarter, or more frequently as

required by the manufacturing specifications and/or 40 CFR Section 63.548(c), the

Permittee shall inspect the control equipment components. The Permittee shall

maintain a written record of these inspections.

9.0

CD Minn. R. 7007.0800, subps. 4, 5,

and 14

Corrective Actions: The Permittee shall take corrective action as soon as possible if

any of the following occur:

- the recorded pressure drop is outside the required operating range; or

- the fabric filter or any of its components are found during the inspections to need

repair.

Corrective actions shall return the pressure drop to within the permitted range,

and/or include completion of necessary repairs identified during the inspection, as

applicable. Corrective actions include, but are not limited to, those outlined in the O

& M Plan for the fabric filter. The Permittee shall keep a record of the type and date

of any corrective action taken for each filter.

10.0
MINNESOTA POLLUTION CONTROL AGENCY

AIR QUALITY

520 LAFAYETTE ROAD

ST. PAUL, MN 55155-4194 COMPLIANCE PLAN CD-01

Facility Name: Gopher Resource LLC

Permit Number: 03700016 - 003

Page 39 of 39 11 May, 2010 12:41

Subject Item: MR 001 SO2 CEMS

Associated Items: CM 001 SO2 monitoring system

SV 003 Main Stack (CE004, CE005) (SIP Source 1)

NC/

CA

Type Citation Requirement

CD Minn. R. 7017.1090, subp. 1 Continuous Operation: CEMS must be operated and data recorded during all

periods of emission unit operation including periods of emission unit start-up,

shutdown, or malfunction except for periods of acceptable monitor downtime. This

requirement applies whether or not a numerical emission limit applies during these

periods. A CEMS must not be bypassed except in emergencies where failure to

bypass would endanger human health, safety, or plant equipment.

1.0

CD Minn. R. 7017.1160, subp. 1 and 2 Monitoring Data: All data points collected by a CEMS shall be used to calculate

individual hourly emission averages unless another applicable requirement requires

more frequent averaging. In order for an hour of data to be considered, it must

contain the following minimum number of data points:

A. four data points, equally spaced, if the emission unit operated during the entire

hour;

B. two data points, at least 15 minutes apart, during periods of monitor calibration

or routine maintenance;

C. one data point if the emission unit operated for 15 minutes or less during the

hour.

2.0

CD Minn. R. 7017.1170, subp. 2 QA Plan: Develop and implement a written quality assurance plan that covers each

CEMS. The plan shall be on site and available for inspection within 30 days after

monitor certification. The plan shall contain all of the information required by 40

CFR Part 60, Appendix F, section 3. The plan shall include the manufacturer's

spare parts list for each CEMS and require that those parts be kept at the facility

unless the Commissioner gives written approval to exclude specific spare parts

from the list.

3.0

CD Minn. R. 7017.1170, subp. 3 CEMS Daily Calibration Drift (CD) Test: The CD shall be quantified and recorded at

zero (low-level) and upscale (high-level) gas concentrations at least once daily

according to the procedures listed in Minn. R. 7017.1170, subp. 3(A) or (B) and 40

CFR Section 60.13(d)(1) for each pollutant concentration, each diluent monitor, and

for each monitor range. The CEMS shall be adjusted whenever the CD exceeds

twice the specification of 40 CFR pt. 60, Appendix B. If no span value is specified in

the applicable requirement or in a compliance document, the Permittee shall use a

span value equivalent to 1.5 times the emission limit. 40 CFR pt. 60, Appendix F,

shall be used to determine out-of-control periods for CEMS. Follow the procedures

in 40 CFR pt. 60, Appendix F.

4.0

S/A Minn. R. 7017.1170, subp. 4 CEMS Cylinder Gas Audit (CGA): due before end of each calendar half-year

starting 01/31/2003, except that a CGA is not required during any calendar half

year in which a RATA was performed. The CGAs shall be conducted at least three

months apart but no more than eight months apart. A CGA shall be conducted

according to the procedures in 40 CFR pt. 60, Appendix F, section 5.1.2. If the

monitored emission unit was operated for less than 24 hours during the calendar

half year, a CGA is not required for that calendar half year.

5.0

S/A Minn. R. 7017.1180, subp. 1 Cylinder Gas Audit (CGA) Results Summary: due 30 days after end of each

calendar quarter following Cylinder Gas Audit

6.0

S/A Minn. R. 7017.1170, subp. 5 CEMS Relative Accuracy Test Audit (RATA): due before end of each calendar year

starting 01/31/2003. A RATA is not required in any calendar year if a RATA

conducted in the previous year demonstrated a relative accuracy value of less than

15 percent or if the associated emissions unit operated less than 48 hours during

the calendar year. If the exception is used, the next RATA shall be conducted

during the first half of the following calendar year. RATAs shall be conducted at

least 3 months apart according to 40 CFR pt. 60, Appendix F, section 5.1.1.

7.0

S/A Minn. R. 7017.1180, subp. 3 Relative Accuracy Test Audit (RATA) Results Summary: due 30 days after end of

each calendar quarter following CEMS Relative Accuracy Test Audit (RATA)

8.0

S/A Minn. R. 7017.1110, subp. 1 & 2 Excess Emissions/Downtime Reports (EER's): due 30 days after end of each

calendar quarter starting 01/31/2003 (Submit Deviations Reporting Form DRF-1 as

amended). The EER shall indicate all periods of monitor bypass and all periods of

exceedances of the limit including exceedances allowed by an applicable standard,

i.e. during startup, shutdown, and malfunctions.

9.0

CD Minn. R. 7017.1130 Recordkeeping: The owner or operator must retain records of all CEMS monitoring

data and support information for a period of five years from the date of the

monitoring sample, measurement or report. Records shall be kept at the source.

10.0
Attachment 5 

Modeling Analysis Report 
MINNESOTA POLLUTION CONTROL AGENCY

AIR QUALITY

520 LAFAYETTE ROAD

ST. PAUL, MN 55155-4194

AIR DISPERSION MODELING 

ANALYSIS COMMENTS

CRITERIA POLLUTANTS

MPCA Dispersion Modeler: Melissa Sheffer

Date: 11/23/2009

Other dates of importance:

Date of Modeling Protocol Approval: N/A

Project Facility: Gopher Resource Corp.

Delta ID, County: 03700016, Dakota

Facility Address: 3385 Highway 149, Eagan, MN 55121

Modeling analysis/report was submitted by ENVIRON Corp. on behalf of the Gopher 

Resource Corporation.

I recommend that the air dispersion modeling analysis for the Gopher Resources facility 

be approved.

Modeling Analysis/Report Comments

Model Selection and Options

o AERMOD version 07026

o AERMOD input and plot files were provided; however, no AERMOD 

output files were provided. Results were summarized in an Excel table 

entitled “Gopher SO2 modeling – Summary.xls”.

o OK for this modeling exercise. Next analysis please use version 09292

and provide AERMOD output files.

Building Downwash

o BPIP version 04274

o No BPIP input/output files provided; however, BPIP files were provided 

with lead (Pb) modeling for same permit action during early 2009.

o OK. Please include BPIP input and output files with all subsequent 

modeling analyses. 

Receptor Grid

o Follows the 2004 MPCA guidance for grid spacing

o Used a large receptor grid (96 km x 96 km, or 48 km in each direction 

away from the main stack)

 50 m grid spacing for the first 1 km from the main stack

 100 m grid spacing for distances between 1 – 2 km from main 

stack

 500 m grid spacing for distances between 2 – 5 km from main 

stack

 1,000 m grid spacing for distances between 5 – 10 km from main 

stack

 2,000 m grid spacing for distances between 10 – 48 km from main 

stack
MINNESOTA POLLUTION CONTROL AGENCY

AIR QUALITY

520 LAFAYETTE ROAD

ST. PAUL, MN 55155-4194

AIR DISPERSION MODELING 

ANALYSIS COMMENTS

CRITERIA POLLUTANTS

o OK.

Meteorological Data

o MPCA pre-processed data from the MPCA’s modeling webpage 

(MS450930.zip)

o Minneapolis/St. Paul Int’l Arpt, MN (MSP) for surface station and St. 

Cloud, MN (STC) for upper air station, from 1986 – 1990.

o OK.

Terrain

o AERMAP version 09040

o NED data from file NED_00288110.

o OK.

Background Sources or Background Concentrations

o Background values from MPCA’s SAM Spreadsheet version 09097 on the 

MPCA’s Air Dispersion Modeling webpage

 Option 1, SO2, Rest of TC category

o OK.

Other?

o 1-hour averaging time for SO2 was not modeled by ENVIRON. There is 

no NAAQS for 1-hour SO2 (though EPA is currently proposing to adopt a 

1-hour standard and revoke the 24-hour and annual standards, 

http://epa.gov/air/sulfurdioxide/actions.html#nov09, with the final rule 

being issued on June 2, 2010 ); however, there is an 1-hour SO2 MAAQS 

of 1,300 μg/m3. (https://www.revisor.mn.gov/rules/?id=7009.0080 ) 1-

hour SO2 was modeled by MPCA staff using input files received from 

ENVIRON and all the same options within the model. Results for 1-hour 

are shown in the next section.

o Also, modeling for annual SO2 by ENVIRON was based on the NAAQS 

of 80 μg/m3. There is an annual SO2 MAAQS of 60 μg/m3, which is more 

restrictive then the NAAQS. 

Modeled Impacts Results

Air Dispersion Modeling Results for Gopher Resources Corp.’s – SO2 NAAQS/MAAQS

Pollutant Averaging

Time

Modeled 

Impacts 

(μg/m3)

Background 

Value 

(μg/m3)

Total 

Predicted 

Impacts 

(μg/m3)

NAAQS 

(MAAQS) 

(μg/m3)

% of 

Standard

MPCA 

Modeling 

Language 

Tier

SO2

*1-hr 735.3 70 805.3 (1,300) 61.9%

Tier 4

3-hr 554.6 42 596.6 1,300 45.9%

24-hr 343.3 21 364.3 365 99.8%

Annual 46.2 5 51.2 80 (60) 64.0% 

(85.3%)

* MPCA modeled 1-hour SO2 based on 3-hour and 24-hour modeling parameters.
MINNESOTA POLLUTION CONTROL AGENCY

AIR QUALITY

520 LAFAYETTE ROAD

ST. PAUL, MN 55155-4194

AIR DISPERSION MODELING 

ANALYSIS COMMENTS

CRITERIA POLLUTANTS

Permit Conditions from Modeling

o Permit language from modeling for Tier 4 for SO2

Source Emissions Rates and Modeling Parameters

Air Dispersion Modeling Parameters for Gopher Resources Corp. (All Averaging Times)

SRCID

SO2

Emis. 

Rate –

All 

Ave. 

Times

Stack 

Height Temp Exit Velocity 

Stack 

Diameter X Coord. Y Coord. Elev.

g/s m K m/s m m m m

MSTACK1 262 60.7 336 23.72 1.83 490,648.08 4,964,581.07 273.8

SSTACK1 0.0252 16.0 295 6.43 0.99 490,585.81 4,964,667.44 271.7
MINNESOTA POLLUTION CONTROL AGENCY

AIR QUALITY

520 LAFAYETTE ROAD

ST. PAUL, MN 55155-4194

AIR DISPERSION MODELING 

ANALYSIS COMMENTS

CRITERIA POLLUTANTS
Summary of GRC SO2 Modeling 

AERMOD was used to model SO2 concentrations downwind of the Gopher Resources 

Corporation (GRC) facility in Eagan, MN. Two onsite SO2 sources were modeled, the 

main stack and the scrubber stack. 

Emissions rates used in the simulation were as follows: 

• Main stack: 262 g/s (2080 lb/hr; nearly four times the amount listed in the current 

permit, 530 lb/hr) 

• Scrubber stack: 0.0252 g/s (0.2 lb/hr) 

The following types of source information were used for model setup: 

• Location (X,Y) 

• Elevation (determined based on NED file from the USGS) 

• Height, diameter, exit velocity and temperature for point sources 

• Emissions rate (g/s) (as detailed above) 

On-site building heights and locations were also provided as input to the model. 

A very large receptor grid covering 48km in each direction from GRC’s main stack 

(96km x 96km area) was used, with varying grid resolution: 

• 50m grid spacing was used for the first 1km from the main stack 

• 100m grid spacing was used for distances between 1-2km from the main stack 

• 500m grid spacing was used for distances between 2-5km from the main stack 

• 1000m grid spacing was used for distances between 5-10km from the main stack 

• 2000m grid spacing was used for distances between 10-48km from the main stack 

In addition, fenceline receptors were placed surrounding the facility property line, with 

25m spacing. 

‘Option 1’ SO2 background concentrations for ‘Rest of TC’ were added to the maximum 

simulated concentrations, for each of the following averaging times: 3-hr (second 

highest), 24-hr (second highest), and annual concentrations. This sum was then 

compared to the SO2 NAAQS. 

The air dispersion modeling results (please see the attached “Gopher SO2 modeling - 

Summary.xls” spreadsheet) indicate that all SO2 NAAQS are being attained under this 

scenario, with the 24-hr NAAQS being the limiting factor: 343 μg/m3

 (simulated) + 21 

μg/m3 (background) = 364 μg/m3, just below the NAAQS of 365 μg/m3. 

Thus, the facility air permit limit for SO2 emissions from the main stack could be raised 

as high as 2,080 lb/hr on an emission averaging period of at least 3 hours with resulting 

modeled impacts near the facility not exceeding the NAAQS for SO2 for the 3-hour, 24-

hour, or annual averaging periods. 
Appendix: Meteorological data preparation 

The hourly surface data and daily upper air data from the closest National Weather 

Service (NWS) station was obtained in the SAMSON and the TD6201 format 

respectively, for the period of 1986 to 1990, as available from the MPCA website. The 

surface data station is located in Minneapolis/St. Paul, Minnesota, and the upper air 

station in St. Cloud, Minnesota.

Prior to running AERMET, it is necessary to specify the surface characteristics around 

the application site. The most recent 2001 land use data from the USGS and the surface 

parameter values based on AERSURFACE were used to characterize the surface 

conditions around the facility. 

According to the most recent AERMOD Implementation Guide1

, the effective Bowen 

ratio and albedo were determined by averaging the surface characteristics across a 

representative domain without any direction or distance dependency. The recommended 

default domain of a 10-km by 10-km region was used. The geometric mean was 

estimated for Bowen ratio and the arithmetic mean for albedo. 

The determination of the surface roughness length was based on an inverse distance 

weighted geometric mean for a default upwind distance of 1 km. Twelve 30-degree landuse sectors were set up around the facility. 

Based on “ABZoINFO1.XLS” from the MPCA website, the surface parameters (surface 

roughness, albedo, and Bowen ratio) of winter with continuous snow were applied for 

January and February, the spring values for April, the summer values for June through 

September, the autumn values for November, and the average of the preceding and the 

following seasons for all the other transitional months. In addition, the surface moisture 

condition of Minneapolis/St. Paul was determined to be dry based on the values used in 

“MS450930.ZIP” from the MPCA website. 

For each year, surface and upper air data files were combined using version 06341 of 

AERMET to develop the AERMOD meteorological data files. 

 

1 United States Environmental Protection Agency (USEPA). 2008. AERMOD Implementation Guide. 

January 9. 
Attachment 6 

Public Comments & MPCA 

Response 
•

. , "

. . -.

Minnesota Center for

._" .Environ,mental.Advocacy

The legal and scientific voice protecting and defending,Minnesota's environment

March 19,2010 VJA EMAIL AND U.S. MAIL

Toni Volkmeier

Air QualityP~rmitsSection, Industrial Div.

MN Pollution Control Agency

520 Lafayette Rd. North

, S1. Paul,MN 55155

. (651)757-2802 (P) /-(651) 296-8717 (f) ,

toni.volkmeier@state.mn.us "

Founding Director

Sigurd F. Olson

(1899: 1982)

26 Ea.t Exchange Street - Suite 206

Saint Paul, MN 55101-1667 ,

651.223.5969

651.223.5967 fax

mcea@mncenter,org

www.mneenter.org

Merritt Clapp-Smith'

, Vice Chair

, Hoard of Directors

Nancy Speer '

Chair

" "

, Kent White '

Treasurer I

R~:MPCA proposed air emission permit # 03700016~0003

Bridget A. Hust

Se~retary,

Peter Bachman '

Kiin .Carlson

John'Helland

. Cecily Hines

- Douglas A, Kelley.

Michael Kleber·Diggs

Mehmet Konar-~teenberg

',Matt Samuel

Gene Merriam

Steve Piragis

Irene Qualters '

Executive Director

-Scott Strand

I,

, DearMf? Volkmeier:

, ' TheMi~e~ota Center for Environmental Advocacy (MCEA) submits tIns, . . ", ,"

co~ent letter in ~,esponse,t; the Minnesota P~llution Control Agency (MPCA)

public notic~ ofproposedissu~ceofAir. Emission Permit # ,03700016-00D3 to

Gopher Resource, L:LC"of Eagan, Dakota Couilty, MN. MCBA is a Minnesota

nonprofit environmental organi.zation wit~ statewide inember$hip whose mission

is to uselaw, science, and research to preserve and protect Minnesota's natural /' '. \ • • ..... .'I :

,resources, wildlife, and the health ofits people.

MCEA is conceme4 thatthe pr?posed total facility potential-ta-emit

(PTE) for the criteria'pollutant lead is extremely high in comparison with the, . . - '.

facility's actu'al emissions-in r~cent Ye~.s. M~BA is aware that the PTE reflects

,,'the'maximum aimual1eadpollu~ionthat could be,~mitted from Gopher ~esource

without violating its permit tenus, ai:J.d that it.as~umes operation ofthe facility at

fuli capacity, and a(corUpliance with the sevenil'emissions limit t~rms in th~

, permit,

.MPCA has proposed that the maximum permitted emissions ofthis toxic

.heavy metal from th~ secondary lead smeltingh;efining operation~'at the q-ophei _. - '

ResourQes facility should remain at 13.3 tons per year (26;600 lbs.lyr). lfthe'

1

Printed on 100 percent post-consumer recycled paper using soy inks, , ',.. '
, \

facility actually were to emit anywhere-near this huge amount ofl.ead in a year, the surrounding • I. .•

area wouldbein noh-attainment ofthe 2008 National Ambient Air Quality Standard (NAAQS)

for lead.: The' area surrounding this facility is already designated as a "Lead Maintenance Area" ,

by the U.S. Envir~J.?l1lental Protection Agency'(USEPA) due to high risk for non":9ompliance'

" with lead NAAQS., [USEPA 2010] AdditionallY"tiSEPA has included Dakota County among

the small number of counties nationwide violating the 2008 NAAQS becagse air monitors near

the Go~her Resources facility record lead levels well~bove the standa;d of O~ 15, Ilg/m3. [USEPA \ . ",

2008]

, . SinGe air emissions data reported by MPCA for this facility in recent years indicate that

"" total facility emissions of)eadare typic~lly on the order of 0.5 ton per ye,ar, [MPCA 2Q10] there. " -" -

,is no practic.aI reason that the proposed perinit PTE should be any more than one ton peryear.

MCEAurges MPCA to amend, tIns permitaccordingly, and enforce a total facility PTE of no

more than one ton oflead per year.

, ,

MCEA believes that the recent modification ofthe facility by installation of pollution

control and possibly other equipment, provide reaso~ and. regulatory opportUnity'to decreasethe _ ,

pennit's emissions limits substantially, such that a.new PTE when calculated would be.more

congruent with the facility's' actual emissions. The EPA is likely tomake its attainment/non- . . ;' . \

" ' ,

attainment determinations for compliance with the~008 lead NAAQS, fairly 'soon. One year , ,

afte~ that, and likely befote the current permit term: ~xpires, and the 200KNAAQS for lead will

become effectIve. R~ther th~ saying that'the 2008 NMQS are not yet effective a1?-d simply

leaving'it at that, MPCA could and should be taking this opportunity to bring its air emissions , '

permitfor Gopher Resour~es up to 'date, so that it is more likely to 'Qe in ~ompliance when the

2008 NAAQS become effective. . . . -

. Beyond the issue of attainment ofthe NAAQS for lead, MCEA is concerned with the "riskfor significant impacts on public health and environment-when huge amounts ofthis neuroto~iri , '

are c~nsistently released to ambient air in the h~art ofthe most popul~us region ofMinnesota. '

The toxic effects of excessive lead exposure on the brain and ne~vous system have been - . I '

. recognized for centuries. [ATSDR 2007] More recently, it has become increasingly evident that

evenrelatively low levels of exposure to lead can cause lasting int~llectual and behavioral

-impairments" particularly among young children.[EtzeI2003;~ellinger 2004; ATSDR 2007]

2
" .

These impairments have been quantified as significant loss of paints on IQ tests, [Canfield 2003; - I . • • ,( .

Lanphear 20D5; Jusko 2008] and have also been demonstrated thr~ugh the use of a variety of , ..' " . '.

other tests ofcognitive ability, academic ~ptitude', and 'ne~odevelop:ri1ent. [Lanphear 2000; . .',

Tellez-Rojo 2006; Surkan 2007} A relatively low range ofleadexposure has also been identified ." J' • '.. '. -

as arisk factor for attentioncieficit/hyper:activity disorder (ADHD) [Braun 2006; Chiod02007;

Nigg 2008] and conduc~ disorder (CD). [Braun 2008] Pop~lati6n aggre~ate studies (as distinct

. from the epidemiological ~alyses cited.a~ove,'in which individual blood lead conceritratlons . '.. . . \ . were measured) have also identified a very worrisome trend where airborne lead ,ccmcentration is ,..- - . 'positively correlated with violent behavior,including homicide. [Stretesky 200I}

Ba~ed'on current ,scierice, MCEA urges MPCA to tighten ~his, ~dother facilitie~' permit

limits for airborne' lead emiss~ons, not only to e~sure compliance with NAAQS, but also to fulfill

the ~gency's ~is~ionofprotectingthe .

environment .'.and public health1from ~.pollut~t i .h~ards.

Compliance with NAAQS is also a wise economic decision: USE~A estimates th~t'ful1 ,

implement8:tion ofthe.2008 NAAQS for lead' will yield economic benefits of up to $6.9 billion , ' ,

,for'theU.S. economy, by avoidance ofIQ loss andother developmental impacts caused?y

childhood leadexp.osures. [USEP'A 2009] As a,reviewarticle in,t~eN8:tionallnstitutes'otHea1th

journal Environmental Health Perspectives noted, "When one consid~rshow sJ?1all a dose oflead.

is believed to h~ a: child's br~in...'emi~sions measured 9Y the'ton s~ould give anyone pause.".,

[Sch.n;tidt 20 I, 0] :

Continuous emissions monitors (CEMs) are appropriate for this .f~cility at its emissions' • ~. , . "".', , . I .. \ •

pO,ints. Given the scale of emissio,nsfrom Gopher Resource and its proximity upwind of

re~identialareas,- ci~ quality ·and le~d ievels should be 'closely monitored for the ,duration ofthe ,

operation ofthis facility. MCEA ,isks that the MPCA, perhaps in partnership with theMinnesot;:t • I'. • I

Department ofHealth and theD.S. Environmental Protection Agency, increase air quality" . ' 'r . - . ' .

.;. . ·monitoring at several stations downwind ofthe facility permit, and.post the test results onlim\ . ,- \- . '

Wind roses for nearby locations (St: Paul, South .St. Paul, and Minneapolis/St. Paul'Internationai ',' ' \ . -'. .

Airport) are appended for your,reference..·

Thank you far your Gonsideration ofthese comments. Please feel free to contact us for

further- discussion.

, ,

3
Sin~'erely,

_Samuel Yamin, MPH

Public Health Scientist

,//~~

~/,~~ Matthew Norton, MFS, Esq.

StaffAttorney

., . , I

4

, .

, '
"

References:

ATSDR 2007 U.S. Department of Health-and Human Services, Agency for Toxic Substances

'and Disea$e Registry. Toxicological Profilejor Lead Atlanta, GA; August 2007. '

Bellinger 2004 Bellinger DC. Lead. Pediqirics. 113(4):,1016-22. April 2004.'

'-' Braun' 2006 BraUn JM, ,Kahn RS, Froehlich T, Auinger P, Lanphear BP. Exposures to

environmental toxicants and attention ,deficit 4yperactivity disorder in U.S. children. '

Environmental Health Perspectives. 114(12): 1904-9. December 2006. '

Braun 2008 ~raun JJyf, Froehlich TE, Daniels Je ,Dietrich KN; Hornung R, Auinger P, Lanphear

BP~ Association of environmental toxicants and conquct disorder inU.S.children: NHANES

'2001-2004. Envirqnmental Health Perspectives. 116(7): 956-62. July 2008. , " ,

Canfield 2003 Canfie,dRL, Henderson CR Jt, Cory-Slechta DA, Cox C, Jusko TA, Lanphear

BP. Intellectual impairmendn children with blood lead ~oncentrations below 10 /lg/dL. ·New

England Journal ofMedicine, 348(16): 1517-26. April 17, 2003.

,Chiodo 2007 Chiodo LM, Covington C, Sokol RJ, Hannigan JH, Jannlse J,AgerJ; Greenwald

M, Delaney-Black V. Bloed lead levels. and specific attention effects in young children.

Neurotoxicology and Teratology. 29(5): 538-46. September-October 2007. , / \ \. . , , .

'Etzel 2003 Etzel RA, Balk SJ, Eds. Pediatric EnvironmentalHealth, 2nd Edition. American

Academy ofPediatrics, Elk Grove Viilage~ IL; 2003. ' , , . Jusko 20081l,lSkO TA, Henderson CR, Lanphear BP, C0ry-Slechta DA, Parsons PJ, Canfield RL.

Blood lead concentrations <10 /lg/aL and chgd intelligence at 6 years of age. Environmental

Health Perspectives, 116(2): 243-8. February ,2008. ' '

Lanph~ar2000 .Lanphear BP,Dietrich K, Aliinger P, Cox C Cognitive deficits assoCiated with I

blood lead concentration:s :<10 /lg/dL' in US children and adolescents. Public Health Reports.

'.!

ll5(6L521-9. November-December 2000. ' , •

Lanphear 2005 Lanphear BP, Hornung R, Khoury J; Yolton K;Baghurst P, Bellinger "DC,

Canfield RL,Dietrich KN; Bornschein R;Greene T, Rothenberg SJ, NeedlemanHL, Schnaas • .' . I

L, Wasserman G, Graziano J, Roberi;s R. Low-level environmental kad.exposure and children's

intellectual'function.: an international pooled analysis. Environmental Health Pef'speetives.

113(7): 894-9: July io05. , "","

MPCA 2010 Minnesota Pollution ControiAgency. Minnesota Air 'T~xics Emissions Inv'entory,

'Facility Actual Emissions Data Search www.pca.state.mn.us/air/toxics/toxics-facilitydata.~fm.

Accessed,F'ebruary 19,2OJO. " ',' " ' " , : ' ,',' '

, Nigg 2008 Nigg JT,Knottnerus GM, Martel MM, Nikol§l.s M;Cavanagh K, K~aus w:

Rappley MD. Low blood lead.levels associated with clinically diagnosedaltention- '

def).cit/p,yperactivity disorder and mediated' by. weak cognitive control. Biological Psychiat7~y.

63(3): 325-31. February 1, 200~.

Schmidt2010 Lead in air: adjustjng to 'a new standard. Environmental Health Perspectives:

'118(2): a76-9. February.2010. , '

Stretesky2001 Stretesky PB, Lynch Ml The relationship between lead exposure an,d homicide.

" Archives ofPediati~icandAqolescentMedicine. 155(5):,57,9-82. ;May 2001. '

5 , ,

I,
- \

. "

Surkan 2007Surkan'PJ, Zhang A, Trachtenberg F, Daniel DB, McKinlay S; Beninger DC.

Neuropsy'chologiqal function in thildren with blood lead levels <1bIlg/dL. Neuroto.xicology.

28(6): 1170-7. 'November 2007. , _ ' ,

Tellez~Rojo 2006 Tellez-R,ojo MM, Bellinger'DC, Arroyo-Quiroz C,'LaIl}adrid-Figueroa H,

M~rcado-Garcia A, Schnaa&~AITieta L, Wright RO;Hernandez-Avila M,Hu H. Longitudinal

association::; between blood lead concentrations lower than'10 Ilg/dLand netrrobehaviorar

d~velopment in environnientallyexpos~dchildren in Mexico City. Pediatrics. 118(2): e323-30.

August 2006. , ,

USEPA 20Cl8 United States, Environp.1ental Protection Agency" Office ofAir Quality Planning

and Standards. Final Revisions to NationalAirQuality StaridardsforLead; Counties with

Monitors Violating the 2008Lead Stdndards. Presentation mate~ials datedOptober 15,2008.

Accessed on.:.lirle at: http://epa.gov/air/lead/attions.html. " , , • , J'

• ,I '-"'1' '.

USEPA 2009 Unit~d States Environmental Protection Agency, Office ofAir Quality Planning

and Standards. ,FactShee{;' Final Revisions to the National.(1mbierd Air Quality Standardsfor

Lead. December 30,2009. Accessed on-line athttp://epa.gov/air/lead/actions.html. '.

tJSEPA 2010 United'States Environmental ProtectionAgency. G~een B;okJ' Lead lyfaintenance

Areas: www.epa.gov/air/oaqps/greenbk/lmp.html#27037. Accessed March 11,20.10. , . . . .' ,/ . , ,.

"

-, '

6
Wind Roses for St. Paul (KSTP)

Wind Roses for St Paul (KSTP)

http://climate.umn.edu/wind/kstp.htm

This wind rose data is from all non-calm winds three times a hour from approximately October 1996 to March

2001. Note that the plots below are for wind direction only and not an indication of wind speed.

, N

--+- January .

--- February

~March

·s

N

10f2

s

--+-April

---May

--+--"-June

/

3/19/2010 12:40 PM
Wind Roses for 81. Paul (K8TP)

N

http://climate.umn,edu/windlkstp.htin

W (---+-~""'+f.

N

s

s

+--+--+-~E

-+-July

-August

, -+-SeptetYIber

-+- October

--- November

-+- December

20f2

Special thanks to:

Mark Seeley, MarthaShulski, Kenny Blumenfeld and Amy Cecchi.

~,",)():G"X;(,··· <;;.

? Return to Minnesota Climatology Working Group Main page

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Comments/Questions

URL: http://ciimate.umn.edulwind/kstp.htm

Last modified: October 6,2004

3/1912010 12:40 PM
Wind Roses for South Sf. Paul (KSGS)

Wind Roses for South S1. Paul (KSGS)

http://climate.umn.edu/wind/ksgs.htm

This wind rose data is from all non-calm winds three times a hour from approximately October 1996 to March

2001. Note that the plots below are for wind direction only and not an indication of wind speed.

N

W E------«-'....".._+_-+

s

N

----+- JanuarY

-II- February

--+- March

10f2

s

-+-April

-ll-May

-+-June

3/19/2010 12:40 PM
Wind Roses for South St. Paul (KSGS)

N

http://climate.umn.edulwindlksgs.htm

s

N

l:':-t--t---)E

s

\

-+-July

--:-August

~September

-+-October

-II- November

-+- December

20f2

Special thanks to:

Mark Seeley, Martha Shulski, Kenny Blumenfeld and Amy Cecchi.

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~;:.. Return to Minnesota Climatology Working Group Main page

~._~.-

'.

Comments/Questions

URL: http://climate.umn.edulwind/ksgs.htm

Last modifi~d: October 6,2004

311912010 12:40 PM
Wind Roses for Minneapolis/St. Paul Inti. (KMSP) http://climate.umn.edu/wind/kmsp.htm

Wind Roses for Mir:meapolis/St. Paul IntI. (KMSP)

This wind rose data is from all non-calm winds three times a hour from approximately October 1996 to March

2001. Note that the plots below are for wind direction only and not an indication of wind speed.

N

--:+-- January

---- February

-+- March

s

N

10f2

s

--:+-- April

----May

----"":""June

3/19/2010 12:42 PM
Wind Roses for Minneapolis/St. Paul IntI. (KMSP)

N

~~--+--+-~ E ~IL//I\'

s

N

-+-July

---Augu~t

~September

http;//climate.umn.edUlwind/ktnsp.htm

W E----f---lllt+--H

s

FII:-+--r------,lE

-+- October

---- November

~December

20f2

Special thanks to:

Mark Seeley, Martha Shulski, Kenny81umenfeld and Amy Cecchi.

~;;Of):;,G

Return to Minnesota Climatology Working Group Main page

f ~,_.

Comments/Questions'

URL: http://c1imate.umn.edulwind/kmsp.htm

Last modified: October 6,2.004

3/19/2010 12:42 PM
Minnesota Pollution Control Agency

520 Lafayette Road North I 5t.Paul,MN 55155-4194 I 651-296-6300 I 800-657-3864 651-282-5332 nv www.pca.state.mn.us

May 11, 2010

Mr. Samuel Yamin, MPH

Public Health Scientist

Minnesota Center for Environmental Advocacy

26 East Exchange Street - Suite 206

St. Paul, MN 55101-1667

Mr. Matthew Norton, MFS, Esq.

Staff Attorney

Minnesota Center for Environmental Advocacy

26 East Exchange Street - Suite 206

St. Paul, MN 55101-1667

RE: Minnesota Pollution Control Agency's Proposed Air EmissionPennit No. 03700016-003

Dear Messrs. Yamin and Norton:

On March 19,2010, the Minnesota Pollution Control Agency (MPCA) received an electronic

copy of your letter, dated March 19,2010. A paper copy was received on March 22, 2010. The

purpose ofthis correspondence is to respond to your suggested changes related to

Draft/Proposed Air Emission Pennit No. 03700016-003, for Gopher Resource LLC.

In your letter, you made three requests, and provided much background infonnation supporting

your requests. Those three requests can be summarized as follows:

1. You ask that the MPCA tighten the pennitted limits for airborne lead emissions from this

facility and other facilities, to ensure compliance with the National Ambient Air Quality

Standards (NAAQS) and to protect public health and the environment. Specifically, you

suggest an annual lead limit of one ton per year for Gopher Resource.

2. You suggest that the MPCA should bring the air emissions pennit for Gopher Resource

up to date with regard to the 2008 lead NAAQS.

3. You suggest that the MPCA should increase air quality monitoring at several stations

downwind ofthe facility, and post the test results online.

5t.Paul I Brainerd I· Detroit Lakes I Duluth I Mankato I Marshall I Rochester I Willmar
Mr. Samuel Yamin and Mr. Matthew Norton

Page 2

MPCA Response to Item 1:

No additional or tightened limits are being added to the permit at this time. There are two actions

that will take place outside ofthis permit, both of which are anticipated to result in lowering the

potential to emit (PTE) ofthe facility through more restrictive limits. One ofthese is the U.S.

Environmental Protection Agency's (EPA) review ofthe National Emission Standards for

Hazardous Air Pollutants (NESHAP) for Secondary Lead Smelters, which is currently underway.

This review is required under the Risk and Technology Review (RTR) program which was

established under the Clean Air Act (CAA) to review and revise MACT standards as necessary

every eight years by evaluating developments in practices, processes, and control technologies

[CAA Section 112(d)(6) - Technology Review]; and to assess the remaining health risk after

implementation ofthe original MACT standard to verify that the standards provide an adequate

margin ofsafety to protect public health. [CAA Section 112(t)(2) - Residual Risk]. General

information about the RTR program can be found at http://www.epa.gov/tqVatw/rrisk/rtrpg.html.

The EPA's goal is to complete this project by December 2011.

The second activity is the determination on the attainment status ofthe area around Gopher

Resource LLC, with respect to the newer lead NAAQS. Ifthat determination is "attainment,"

that would indicate that no further emission limits or reductions would be required. If, instead,

that determination is "nonattainment," the MPCA will have 18 months after final designation by

the EPA to develop a State Implementation Plan (SIP) for achieving attainment with the

standard. As is described in the Technical Support Document for the draft/proposed permit,

states with nonattainment areas will be required to attain the standard as 'expeditiously as

practicable," but no later than five years from the effective date ofthe nonattainment

designation. It is likely that such a plan would include a variety of new, more restrictive emission

limits and compliance demonstration requirements.

MPCA Response to Item 2:

The draft permit as public noticed is up to date with regard to currently applicable requirements. The

MPCA recognizes that the 2008 Lead NAAQS is an applicable requirement, and is expecting a

determination from the EPA regarding the area's attainment status with regard to this standard by

October 15,2010. As stated previously, ifthat determination is "nonattainment," the MPCA will

have 18 months after the date of designation to develop a plan for the area to come into compliance,

which must happen as expeditiously as practicable, but no later than five years from the effective

date ofthe nonattainment designation. We are not yet in a position to anticipate specifically what

those requirements might be. But to that end, Gopher Resource has begun taking steps toward

lowering emissions by adding two new filter banks, which were and still are reflected in the draft

permit.
Mr. Samuel Yamin and Mr. Matthew Norton

Page 3

MPCA Response to Item 3:

Additional ambient air monitoring is beyond the scope ofthis permit. Lead is currently

monitored at a point to the southeast ofthe facility, as near as possible to the point of highest

modeled lead emissions. Because lead is a heavy metal, it would be expected that emissions

would settle nearer to the facility, rather than travel significant distances beyond the facility and

current monitor location. Also, ifthe area is designated as nonattainment, additional monitoring

mayor may not be a requirement ofthe nonattainment SIP. While your suggestion that the

MPCA increase lead monitoring will not be implemented through this permit action, it has been

forwarded to the MPCA's Air Monitoring Unit.

The MPCA appreciates your thoughtful comments on the draft/proposed permit. Your comments

will be part ofthe permit record, and will be forwarded to the EPA for their review along with

the proposed permit and technical support document.

Sincerely,

T ni lkmei·r

Air Permit Engineer

Air Quality Permit Section

Industrial Division

TV:lao

cc: Steve Yates, Gopher Resource LLC

John Tapper, Gopher Resource LLC

Rick Strassman, MPCA

Gordon Andersson, MPCA

AQ File No. 675'~....