# 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 a ll 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 mi scellaneous 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, PM 10 

## , PM 2.5 

## ), Nitrogen Oxide (NO

x 

## ), Sulfur Dioxide (SO 2 

## ), 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 PM 10 

## tpy PM 2.5 

## tpy SO 2 

## tpy NO

x 

## 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 PM 2.5 

## are not reported in the Emission Inventory (EI). PM 2.5 

## is assumed to be < the reported PM 10 

## 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.

### Technical Support Document, Permit Action Number: 03700016-003 Page 2 of 18 Date: 6/29/2010 

## Table 2. Facility Classification

Classification Major/Affected Source Synthetic Minor Minor

PSD SO 2 

## , NO

x 

## PM, PM 10 

## , PM 2.5 

## , Lead, CO VOC Part 70 Permit Program SO 2 

## , NO

x , 

## PM 10 

## , PM 2.5 

## , 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 templa tes and standard citation formatting;

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

• incorporated certain SIP requirements from the Admi nistrative Order effective December 19, 1994, including the recordkeeping and contingency measure requirements wh ich 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 restri ctive 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 associat e 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 SO 2 

## 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 comb ines with the exhaust stream from EU009; since the exhaust streams combine upstream of the baghouse, the sorbent does offer some SO 2 

## 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 SO 2 

## 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 acti on. However, in order to meet the limit on a 1-hour average basis, the Permittee has b een 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. M odeling 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 SO 2 

## hourly limit, but increase the allowed averaging time. In this way, no annual increase in SO 2 

## 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 SO 2 

## and NO

x 

## are permitted at a rate of 100 tons per year or

### Technical Support Document, Permit Action Number: 03700016-003 Page 3 of 18 Date: 6/29/2010 

## greater. The permitted potential to emit of all other criteri a 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 fo r 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 f acilities 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 emerge ncy generators (EU023 and EU024). The emergency generators did not commence constr uction 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 Pr ocess 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 ar e 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) a nd FS006]. The rule limits lead compounds from each type of affected source. In addition, total hydrocarbon (THC) emissions from each of th e 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 fo r 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 ch romium-based water treatment chemicals and are located at major facilities for HAPs. There are no chromium-based water tr eatment 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 fo r the emergency generators (EU023 and EU024). Pursuant to 40 CFR 63.6590(b)(3), existing emergency stationary RICE (w ith a site rating of less than or equal to 500 brake HP located at a major source of HAP emissions which commenced construction or reconstruc tion 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 Hazar dous 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-c ontrol 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)

### Technical Support Document, Permit Action Number: 03700016-003 Page 4 of 18 Date: 6/29/2010 

## the unit is subject to an applicable emission limitation or sta ndard 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):Technical Support Document, Permit Action Number: 03700016-003Page 5 of 18 Date: 6/29/2010Table 3. CAM Applicability for Units with Uncontrolled PTE at or Above Major Source ThresholdsUnit Control Pollutantswith limitsDoes CAM Apply? Why or Why Not? Monitoring/CommentEU001 CE001 Wet Scrubber PM, Lead No Uncontrolled PM is less than 100tpy, uncontrolled Lead is less than10 tpyRegular periodic monitoringrequirements applyEU002 CE002 Fabric Filter PM, Lead No Uncontrolled PM is less than 100tpy, uncontrolled Lead is less than10 tpyRegular periodic monitoringrequirements applyEU004 CE004/CE005 FabricFilters (main)PM, VOC,Lead, Leadcompounds,SO2No for VOC, SO2andLead CompoundsYes for PM and LeadVOC and SO2are uncontrolledLead compound limit is from apost-11/15/90 standard (NESHAPSubpart X)Uncontrolled Lead is 1170 tpy;Lead limit is approximately 5.75lb/hr (Lead SIP limit for SV002and SV003); uncontrolled Lead is266.5 lb/hr (so controls needed tomeet limit), and controlled Lead isapproximately 8.5 tpy (so not aLarge PSEU)Uncontrolled PM is 916 tpy; PMlimit is approximately 35 lb/hr(Minn. R. 7011.0610 for SV003);uncontrolled PM is 209 lb/hr (socontrols needed to meet limit), andcontrolled PM is approximately48.6 tpy (so not a Large PSEU).Regular periodic monitoringrequirements apply for VOC andSO2.NESHAP Subpart X monitoringrequirements apply for LeadcompoundsCAM for “Other” PSEUs appliesfor PM and Lead – CE004 andCE005EU006 CE004/CE005 FabricFiltersPM, Lead No Uncontrolled PM is less than 100tpy; uncontrolled Lead is less than10 tpyRegular periodic monitoringrequirements apply, but CAMrequirements apply for CE004 andCE005 for other reasons anywayEU007 CE004/CE005 Fabric PM, VOC, No for SO2, VOC, and Combined uncontrolled SO2is Regular periodic monitoringTechnical Support Document, Permit Action Number: 03700016-003Page 6 of 18 Date: 6/29/2010Unit Control Pollutantswith limitsDoes CAM Apply? Why or Why Not? Monitoring/Comment+EU009Filters (main) Lead, Leadcompounds,SO2Lead CompoundsYes for PM and Leadapproximately 485 lb/hr; SO2limitis 530 lb/hr (so controls notneeded for unit to meet limit)Lead compound and VOC limitsare from a post-11/15/90 standard(NESHAP Subpart X)Uncontrolled Lead is 5500 tpy(4270 tpy for EU007 + 1280 tpyfor EU009); Lead limit isapproximately 5.75 lb/hr (LeadSIP limit for SV002 and SV003);uncontrolled Lead is 1268 lb/hr(975 lb/hr for EU007 + 293 lb/hrfor EU009) (so controls needed tomeet limit), and controlled Lead isapproximately 8.5 tpy (so not aLarge PSEU)Uncontrolled PM is 3674 tpy(3351 tpy for EU007 + 323 tpy forEU009); PM limit isapproximately 35 lb/hr (Minn. R.7011.0610 for SV003);uncontrolled PM is 838.8 lb/hr(765 lb/hr for EU007 + 73.8 lb/hrfor EU009) (so controls needed tomeet limit), and controlled PM isapproximately 48.6 tpy (so not aLarge PSEU).requirements apply for SO2.NESHAP Subpart X monitoringrequirements apply for Leadcompounds and VOCCAM for “Other” PSEUs appliesfor PM and Lead – CE004 andCE005Technical Support Document, Permit Action Number: 03700016-003Page 7 of 18 Date: 6/29/2010Unit Control Pollutantswith limitsDoes CAM Apply? Why or Why Not? Monitoring/CommentEU011–EU020CE004/CE005 FabricFilters (main)CE003 (fugitives)PM, Lead,Leadcompounds,SO2No Uncontrolled PM and SO2are lessthan 100 tpy; uncontrolled Lead isless than 10 tpyLead compound limit is from apost-11/15/90 standard (NESHAPSubpart X)Regular periodic monitoringrequirements apply, but CAMrequirements apply for CE004 andCE005 for other reasons anywayEU021 CE006 Fabric Filter PM No Uncontrolled PM is less than 100tpyRegular periodic monitoringrequirements applyEU023 None SO2No Unit is uncontrolled Regular periodic monitoringrequirements applyEU024 None SO2No Unit is uncontrolled Regular periodic monitoringrequirements applyEU025 None PM No Unit is uncontrolled Regular periodic monitoringrequirements apply

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

The requirements of 40 CFR 51, Best Available Retrofit T echnology, 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 bega n 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 (SO 2 

## ), nitrogen oxide (NO

x 

## ), and PM 10 

## . The MPCA performed a source-specific analysis using the CALPUFF model and determined that Gopher does not cause or contribute to visibility impairme nt 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 certa in 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 SO 2 

## (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 SO 2 

## 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 SO 2 

## emission limit of 530 lbs/hr. On May 22, 1991, the MPCA staff reviewed and approved the SO 2 

## 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 requireme nts 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 SO 2 

## limit. Because an SO 2 

## CEMS is used to track emissions, the permit includes no specific operating conditions for the sorbent injection.

MR001 Minn. R. 7007.1170 Quality Assurance a nd Control Requirements for Continuous Emission Monitoring (CEMS).

CEMS will be used on a continuous basis to measure SO 2 

## emissions.



# 3. Technical Information

3.1. State Implementation Plan (SIP) Lead Administrative Order

On June 22, 1993, the MPCA submitted a SIP revision in cluding a request for redesignation from nonattainment to attainment to the EPA in response to a designation to nona ttainment, effective January 6, 1992, for an area in Dakota County, Minnesota.

The MPCA submittal consisted of an administrative orde r for Gopher Smelting and Refining Company (currently known as Gopher Resource, LLC) requiring the installati on 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 request ed EPA remove the Administrative Order from the SIP, replacing it with the equivalent requirements now written in to 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 thei r request to replace the Administrative Order with the Part 70 permit.

In this Title V Reissuance MPCA has again incorporated SIP requirements fro m the Administrative Order effective December 19, 1994, including certain recordkeeping and conti ngency measures which had inadvertently been left out of the original Title V permit. Some of the other require ments from the Administrative Or der 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 a ffect the modeled compliance with the lead NAAQS.

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

μ g/m 3 

## . 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 2 nd 

## 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 co llectors 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 be tween 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 Administra tive Order) lead emissions were modeled from the new SV008 instead of SV002, using SV 008 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 w ill apply to SV008, and in fact applies to SV002 at this time) was modeled from SV008, using st ack 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 in stead of SV002, resulted in lower modeled maximum ambient impacts. Since we already know that the “real ” modeled impacts from SV002 (meaning the modeled impacts

### Technical Support Document, Permit Action Number: 03700016-003 Page 12 of 18 Date: 6/29/10 

## using refined modeling tools rather than the screening model used here) are not in violation of the applicable lead NAAQS (1.5 μ g/m 3 

## ), 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 SV 008 would not cause a violation of the NAAQS, and in fact can say that SV008 results in lower ambient impacts th an SV002, and does not negatively affect the modeled compliance with the NAAQS, as demonstrat ed for the Administrative Order.

3.2. Revised Lead NAAQS

On October 15, 2008, the NAAQS for lead was changed from 1.5 μ g/m 3 

## to 0.15 μ g/m 3 

## . The effective date is January 12, 2009. The MPCA was required to submit to EPA, by Oc tober 15, 2009, a request for designation of areas of the State, including the area around Gopher, as either in attain ment 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 ach ieving attainment with the revised standard. The State Implementation Plan is due 18 months after final designa tion 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 unrestrict ed PTE. More specifically, the calculations of unrestricted PTE for Lead Compounds/Lead, PM, PM 10 

## , SO 2 

## , and TOC are based on the permitted limits of stacks SV001, SV002, and SV003. As a result, the PTE summary for total NO

x 

## , CO, and HAP are based solely on calculations using emission factors and equipment capacity, but Lead compounds/Lead, PM, PM 10 

## , SO 2 

## , 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. SO 2 

## Modeling

The permit currently includes an SO 2 

## 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. Th e Permittee wished to have a less restrictive limit, because meeting the limit on a 1-hour average was resulting in ex cessive 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 emissi ons 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 SO 2 

## 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 an alysis 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 ra te will be maintained at 530 pounds per hour, 25% of the modeled emission rate, the decision was to use the Tier 1 modeling language (whe re there are no remodeling triggers).

3.5. Periodic Monitoring

In accordance with the Clean Air Act, it is the responsibility of the owner or ope rator 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 cont rol 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) SO 2 

## : < 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.

SO 2 

## : ≤ 530 lbs/hr on

a 24- hour basis

(SO 2 

## reduction plan SO 2 

## 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/PM 10 

## : < 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 ope rated, 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 insi gnificant activities. These are listed in Appendix C to the permit. The permit is required to include periodic monitori ng 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 follo wing table documents the justification why no additional periodic monitoring is necessary for th e 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 fo r 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 pe rmit 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 au tomatically generate the necessary enforcement notices or documents, which must be generated by staff.

Note: the appendix B is a table of pa rameters relied upon in modeling on how to show compliance with the national ambient air quality standards and the SIP requirements. Th e 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 request ed 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 allo wable 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 schedul ed 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 respon se, are included as Attachment 6 to this document.

The proposed permit was sent via email to EPA for th eir 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 h as 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 fe deral 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) 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.
(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. (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 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.
(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 of the 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 of relative 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 of the 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 of the 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,!~ental Protection 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 of the Code of Federal 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 of Gopher 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 of monitoring 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 of the 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 of the 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 of thell11ocouples and thermocouple wells (stainless steel, ceramic) with no success. Because of high 

## 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 Subpart X to maintain and continuously operate

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

. . 

## The alternative approach would consist of continuous 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 of the rate of heat added to the afterburner system which can be related to
temperature of the 

## 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 of the 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\AL T·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!- Y TO 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,esting** 

# requirement 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 ti on 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 Summary5 February, 2010 15:39

Show: Active and Pending Records 

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

Retired

By (Action) Added

By (Action) Item Pollutant 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

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

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

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

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

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

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

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

Acetophenone

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

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

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

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

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

Acrolein

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

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

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

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

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

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

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

Benzene

PER 003 EU 004 9.150E-05

PER 003 EU 006 9.150E-05

PER 003 EU 007 2.740E-04

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

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

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

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

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

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

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

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

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

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

Page 1 of 225 February, 2010 15:39

Show: Active and Pending Records 

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

Retired

By (Action) Added

By (Action) Item Pollutant 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

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

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

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

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

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

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

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

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

Arsenic compounds

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

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

PER 003 EU 006 8.590E-06

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Biphenyl

PER 003 EU 009 6.310E-01

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

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

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

Page 2 of 225 February, 2010 15:39

Show: Active and Pending Records 

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

Retired

By (Action) Added

By (Action) Item Pollutant 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

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

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

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

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

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

1,3-Butadiene

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

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

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

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

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

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

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

Beryllium

PER 003 EU 004 5.150E-07

PER 003 EU 006 5.150E-07

PER 003 EU 007 1.550E-06

PER 003 EU 009 4.336E+01

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Carbon disulfide

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

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

Page 3 of 225 February, 2010 15:39

Show: Active and Pending Records 

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

Retired

By (Action) Added

By (Action) Item Pollutant 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

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

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

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

Chlorine

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

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

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

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

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

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

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

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

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

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

Chlorobenzene

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

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

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

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

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

Cadmium compounds

PER 003 EU 004 6.610E-05

PER 003 EU 006 4.720E-05

PER 003 EU 007 2.340E-04

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

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

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

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

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

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

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

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

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

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

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

Page 4 of 225 February, 2010 15:39

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

Retired

By (Action) Added

By (Action) Item Pollutant 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

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

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

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

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

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

Carbon Monoxide

PER 003 EU 004 3.610E+00

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

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

PER 003 EU 007 1.082E+01

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Chromium compounds

PER 003 EU 004 6.010E-05

PER 003 EU 006 6.010E-05

PER 003 EU 007 1.800E-04

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

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

Page 5 of 225 February, 2010 15:39

Show: Active and Pending Records 

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

Retired

By (Action) Added

By (Action) Item Pollutant 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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Cumene

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

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

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

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

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

1,4-Dichlorobenzene

PER 003 EU 004 5.150E-05

PER 003 EU 006 5.150E-05

PER 003 EU 007 1.550E-04

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

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

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

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

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

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

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

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

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

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

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

Page 6 of 225 February, 2010 15:39

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

Retired

By (Action) Added

By (Action) Item Pollutant 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

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

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

Ethylbenzene

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

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

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

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

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

Formaldehyde

PER 003 EU 004 3.220E-03

PER 003 EU 006 3.220E-03

PER 003 EU 007 9.660E-03

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Hexane

PER 003 EU 004 7.730E-02

PER 003 EU 006 7.730E-02

PER 003 EU 007 2.320E-01

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

Page 7 of 225 February, 2010 15:39

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

Retired

By (Action) Added

By (Action) Item Pollutant 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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Methyl ethyl ketone (MEK)

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

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

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

Naphthalene

PER 003 EU 004 2.620E-05

PER 003 EU 006 2.620E-05

PER 003 EU 007 7.860E-05

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

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

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

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

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

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

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

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

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

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

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

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

Page 8 of 225 February, 2010 15:39

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

Retired

By (Action) Added

By (Action) Item Pollutant 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

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

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

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

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

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

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

HAPs - Total

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

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

PER 003 EU 004 1.170E+03

PER 003 EU 006 8.110E-02

PER 003 EU 007 5.703E+03

PER 003 EU 009 1.459E+03

PER 003 EU 011 4.380E+00

PER 003 EU 012 4.380E+00

PER 003 EU 013 4.380E+00

PER 003 EU 014 4.380E+00

PER 003 EU 015 4.380E+00

PER 003 EU 016 4.380E+00

PER 003 EU 017 4.380E+00

PER 003 EU 018 4.380E+00

PER 003 EU 019 4.380E+00

PER 003 EU 020 4.380E+00

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

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

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

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

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

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

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

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

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

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

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

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

Page 9 of 225 February, 2010 15:39

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

Retired

By (Action) Added

By (Action) Item Pollutant 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

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

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

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

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

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

Mercury

PER 003 EU 004 1.120E-05

PER 003 EU 006 1.120E-05

PER 003 EU 007 3.350E-05

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Phenol

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

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

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

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

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

Styrene

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

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

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

Page 10 of 225 February, 2010 15:39

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

Retired

By (Action) Added

By (Action) Item Pollutant 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

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

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

Toluene

PER 003 EU 004 1.460E-04

PER 003 EU 006 1.460E-04

PER 003 EU 007 4.380E-04

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Xylenes (mixed isomers)

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

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

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

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

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

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

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

Manganese compounds

PER 003 EU 004 1.630E-05

PER 003 EU 006 1.630E-05

Page 11 of 225 February, 2010 15:39

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

Retired

By (Action) Added

By (Action) Item Pollutant 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

PER 003 EU 007 4.900E-05

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

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

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

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

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

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

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

PER 003 SV 013 1.860E-06 8.160E-06 8.160E-06

PER 003 SV 014 1.860E-06 8.160E-06 8.160E-06

PER 003 SV 015 1.860E-06 8.160E-06 8.160E-06

PER 003 SV 016 1.860E-06 8.160E-06 8.160E-06

PER 003 SV 017 1.860E-06 8.160E-06 8.160E-06

PER 003 SV 018 1.860E-06 8.160E-06 8.160E-06

Totals 1.632E-04 9.597E-05 0.000E+00

Lead Compounds

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

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

PER 003 EU 004 1.167E+03

PER 003 EU 006 2.150E-05

PER 003 EU 007 5.694E+03

PER 003 EU 009 1.281E+03

PER 003 EU 011 4.380E+00

PER 003 EU 012 4.380E+00

PER 003 EU 013 4.380E+00

PER 003 EU 014 4.380E+00

PER 003 EU 015 4.380E+00

PER 003 EU 016 4.380E+00

PER 003 EU 017 4.380E+00

PER 003 EU 018 4.380E+00

PER 003 EU 019 4.380E+00

PER 003 EU 020 4.380E+00

PER 001 SV 001 6.430E-01 2.800E+00 4.900E-01

PER 003 SV 001 7.800E-02 0.000E+00 3.400E-01

PER 001 SV 002 3.557E+00 1.558E+01 5.422E+00

Page 12 of 225 February, 2010 15:39

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

Retired

By (Action) Added

By (Action) Item Pollutant 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

PER 003 SV 002 1.200E+00 0.000E+00 5.250E+00

PER 001 SV 003 3.121E+00 1.367E+01 3.885E+00

PER 003 SV 003 7.100E-01 0.000E+00 3.110E+00

PER 003 SV 008 9.700E-01 4.250E+00

Totals 8.190E+03 1.295E+01 0.000E+00

Methyl chloride (chloromethane

PER 001 EU 009 9.000E-01 3.940E+00 3.940E+00

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

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

Methylene chloride (dichlorome

PER 003 EU 009 3.940E+00

PER 003 SV 003 1.260E-01 5.520E-01

PER 003 SV 008 3.000E-02 1.310E-01

Totals 3.940E+00 6.830E-01 0.000E+00

Total Polycyclic aromatic hydr

PER 003 EU 023 6.679E-03 1.670E-03 1.670E-03

PER 003 EU 024 6.679E-03 1.670E-03 1.670E-03

Totals 3.340E-03 3.340E-03 0.000E+00

Nickel compounds

PER 003 EU 004 9.020E-05

PER 003 EU 006 9.020E-05

PER 003 EU 007 2.710E-04

PER 001 EU 009 2.500E-01 1.110E+00 1.110E+00

PER 003 EU 009 0.000E+00 5.350E-04 0.000E+00

PER 003 SV 002 2.860E-06 1.250E-05

PER 003 SV 003 3.950E-05 1.730E-04

PER 003 SV 008 1.430E-06 6.270E-06

PER 003 SV 009 1.030E-05 4.510E-05 4.510E-05

PER 003 SV 010 1.030E-05 4.510E-05 4.510E-05

PER 003 SV 011 1.030E-05 4.510E-05 4.510E-05

PER 003 SV 012 1.030E-05 4.510E-05 4.510E-05

PER 003 SV 013 1.030E-05 4.510E-05 4.510E-05

PER 003 SV 014 1.030E-05 4.510E-05 4.510E-05

PER 003 SV 015 1.030E-05 4.510E-05 4.510E-05

PER 003 SV 016 1.030E-05 4.510E-05 4.510E-05

PER 003 SV 017 1.030E-05 4.510E-05 4.510E-05

Page 13 of 225 February, 2010 15:39

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

Retired

By (Action) Added

By (Action) Item Pollutant 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

PER 003 SV 018 1.030E-05 4.510E-05 4.510E-05

Totals 1.437E-03 6.428E-04 0.000E+00

Nitrogen Oxides

PER 003 EU 004 9.680E+00

PER 001 EU 006 2.000E+00 8.800E+00 8.800E+00

PER 003 EU 006 0.000E+00 4.290E+00 0.000E+00

PER 001 EU 007 3.750E+00 1.640E+01 1.640E+01

PER 003 EU 007 0.000E+00 3.916E+01 0.000E+00

PER 001 EU 009 7.000E+00 3.070E+01 3.070E+01

PER 003 EU 009 0.000E+00 5.164E+01 0.000E+00

PER 001 EU 023 6.702E+01 1.680E+01 1.680E+01

PER 003 EU 023 8.511E+01 2.128E+01 2.128E+01

PER 001 EU 024 6.702E+01 1.680E+01 1.680E+01

PER 003 EU 024 8.511E+01 2.128E+01 2.128E+01

PER 001 SV 003 1.400E+01 6.130E+01 6.130E+01

PER 003 SV 003 2.163E+01 0.000E+00 9.473E+01

PER 003 SV 008 7.600E-01 3.350E+00

PER 003 SV 009 4.900E-01 2.150E+00 2.150E+00

PER 003 SV 010 4.900E-01 2.150E+00 2.150E+00

PER 003 SV 011 4.900E-01 2.150E+00 2.150E+00

PER 003 SV 012 4.900E-01 2.150E+00 2.150E+00

PER 003 SV 013 4.900E-01 2.150E+00 2.150E+00

PER 003 SV 014 4.900E-01 2.150E+00 2.150E+00

PER 003 SV 015 4.900E-01 2.150E+00 2.150E+00

PER 003 SV 016 4.900E-01 2.150E+00 2.150E+00

PER 003 SV 017 4.900E-01 2.150E+00 2.150E+00

PER 003 SV 018 4.900E-01 2.150E+00 2.150E+00

Totals 1.688E+02 1.621E+02 0.000E+00

PM < 2.5 micron

PER 003 EU 001 0.000E+00 6.570E+01 0.000E+00

PER 003 EU 002 6.570E+01

PER 003 EU 004 5.570E+02

PER 003 EU 006 6.655E+01

PER 003 EU 007 2.717E+03

PER 003 EU 009 1.970E+01

Page 14 of 225 February, 2010 15:39

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

Retired

By (Action) Added

By (Action) Item Pollutant 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

PER 003 EU 011 1.314E+01

PER 003 EU 012 1.314E+01

PER 003 EU 013 1.314E+01

PER 003 EU 014 1.314E+01

PER 003 EU 015 1.314E+01

PER 003 EU 016 1.314E+01

PER 003 EU 017 1.314E+01

PER 003 EU 018 1.314E+01

PER 003 EU 019 1.314E+01

PER 003 EU 020 1.314E+01

PER 003 EU 021 5.309E+01

PER 003 EU 023 5.980E+00 1.500E+00 1.500E+00

PER 003 EU 024 5.980E+00 1.500E+00 1.500E+00

PER 003 SV 001 1.500E+00 6.570E+00

PER 003 SV 002 5.600E-01 2.460E+00

PER 003 SV 003 1.795E+01 7.862E+01

PER 003 SV 004 1.210E-01 5.310E-01

PER 003 SV 008 4.000E-01 0.000E+00 1.750E+00

PER 003 SV 009 3.730E-02 1.630E-01 1.630E-01

PER 003 SV 010 3.730E-02 1.630E-01 1.630E-01

PER 003 SV 011 3.730E-02 1.630E-01 1.630E-01

PER 003 SV 012 3.730E-02 1.630E-01 1.630E-01

PER 003 SV 013 3.730E-02 1.630E-01 1.630E-01

PER 003 SV 014 3.730E-02 1.630E-01 1.630E-01

PER 003 SV 015 3.730E-02 1.630E-01 1.630E-01

PER 003 SV 016 3.730E-02 1.630E-01 1.630E-01

PER 003 SV 017 3.730E-02 1.630E-01 1.630E-01

PER 003 SV 018 3.730E-02 1.630E-01 1.630E-01

Totals 3.680E+03 9.456E+01 0.000E+00

Lead

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

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

PER 003 EU 004 1.167E+03

PER 003 EU 006 2.150E-05

PER 003 EU 007 5.694E+03

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

Retired

By (Action) Added

By (Action) Item Pollutant 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

PER 003 EU 009 1.281E+03

PER 003 EU 011 4.380E+00

PER 003 EU 012 4.380E+00

PER 003 EU 013 4.380E+00

PER 003 EU 014 4.380E+00

PER 003 EU 015 4.380E+00

PER 003 EU 016 4.380E+00

PER 003 EU 017 4.380E+00

PER 003 EU 018 4.380E+00

PER 003 EU 019 4.380E+00

PER 003 EU 020 4.380E+00

PER 001 SV 001 6.430E-01 2.800E+00 2.800E+00

PER 003 SV 001 7.800E-02 0.000E+00 3.400E-01

PER 001 SV 002 3.557E+00 1.558E+01 1.558E+01

PER 003 SV 002 1.200E+00 0.000E+00 5.250E+00

PER 001 SV 003 3.120E+00 1.367E+01 1.367E+01

PER 003 SV 003 7.100E-01 0.000E+00 3.110E+00

PER 003 SV 008 9.700E-01 4.250E+00

PER 003 SV 009 2.450E-06 1.070E-05 1.070E-05

PER 003 SV 010 2.450E-06 1.070E-05 1.070E-05

PER 003 SV 011 2.450E-06 1.070E-05 1.070E-05

PER 003 SV 012 2.450E-06 1.070E-05 1.070E-05

PER 003 SV 013 2.450E-06 1.070E-05 1.070E-05

PER 003 SV 014 2.450E-06 1.070E-05 1.070E-05

PER 003 SV 015 2.450E-06 1.070E-05 1.070E-05

PER 003 SV 016 2.450E-06 1.070E-05 1.070E-05

PER 003 SV 017 2.450E-06 1.070E-05 1.070E-05

PER 003 SV 018 2.450E-06 1.070E-05 1.070E-05

Totals 8.190E+03 1.295E+01 0.000E+00

PM < 10 micron

PER 003 EU 001 0.000E+00 6.570E+01 0.000E+00

PER 003 EU 002 0.000E+00 6.570E+01 0.000E+00 0.000E+00

PER 003 EU 004 5.570E+02

PER 003 EU 006 7.128E+01

PER 003 EU 007 2.717E+03

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

Retired

By (Action) Added

By (Action) Item Pollutant 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

PER 003 EU 009 1.970E+01

PER 003 EU 011 1.314E+01

PER 003 EU 012 1.314E+01

PER 003 EU 013 1.314E+01

PER 003 EU 014 1.314E+01

PER 003 EU 015 1.314E+01

PER 003 EU 016 1.314E+01

PER 003 EU 017 1.314E+01

PER 003 EU 018 1.314E+01

PER 003 EU 019 1.314E+01

PER 003 EU 020 1.314E+01

PER 003 EU 021 5.309E+01

PER 001 EU 023 6.300E-01 1.600E-01 1.600E-01

PER 003 EU 023 5.980E+00 1.500E+00 1.500E+00

PER 001 EU 024 6.300E-01 1.600E-01 1.600E-01

PER 003 EU 024 5.980E+00 1.500E+00 1.500E+00

PER 001 SV 001 1.003E+01 4.390E+01 2.820E+00

PER 003 SV 001 1.500E+00 0.000E+00 6.570E+00

PER 001 SV 002 5.120E+01 2.243E+02 3.110E+01

PER 003 SV 002 5.600E-01 0.000E+00 2.460E+00

PER 001 SV 003 4.070E+01 1.783E+02 2.234E+01

PER 003 SV 003 1.795E+01 0.000E+00 7.862E+01

PER 001 SV 004 1.290E+00 5.650E+00 5.650E+00

PER 003 SV 004 1.210E-01 0.000E+00 5.310E-01

PER 003 SV 008 4.000E-01 1.750E+00

PER 003 SV 009 3.730E-02 1.630E-01 1.630E-01

PER 003 SV 010 3.730E-02 1.630E-01 1.630E-01

PER 003 SV 011 3.730E-02 1.630E-01 1.630E-01

PER 003 SV 012 3.730E-02 1.630E-01 1.630E-01

PER 003 SV 013 3.730E-02 1.630E-01 1.630E-01

PER 003 SV 014 3.730E-02 1.630E-01 1.630E-01

PER 003 SV 015 3.730E-02 1.630E-01 1.630E-01

PER 003 SV 016 3.730E-02 1.630E-01 1.630E-01

PER 003 SV 017 3.730E-02 1.630E-01 1.630E-01

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

Retired

By (Action) Added

By (Action) Item Pollutant 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

PER 003 SV 018 3.730E-02 1.630E-01 1.630E-01

Totals 3.685E+03 9.456E+01 0.000E+00

Polycyclic organic matter

PER 003 EU 004 3.710E-06

PER 003 EU 006 3.710E-06

PER 003 EU 007 1.110E-05

PER 003 SV 002 2.260E-07 9.890E-07

PER 003 SV 003 1.970E-06 8.810E-06

PER 003 SV 008 1.130E-07 4.950E-07

PER 003 SV 009 4.240E-07 1.860E-06 1.860E-06

PER 003 SV 010 4.240E-07 1.860E-06 1.860E-06

PER 003 SV 011 4.240E-07 1.860E-06 1.860E-06

PER 003 SV 012 4.240E-07 1.860E-06 1.860E-06

PER 003 SV 013 4.240E-07 1.860E-06 1.860E-06

PER 003 SV 014 4.240E-07 1.860E-06 1.860E-06

PER 003 SV 015 4.240E-07 1.860E-06 1.860E-06

PER 003 SV 016 4.240E-07 1.860E-06 1.860E-06

PER 003 SV 017 4.240E-07 1.860E-06 1.860E-06

PER 003 SV 018 4.240E-07 1.860E-06 1.860E-06

Totals 3.712E-05 2.889E-05 0.000E+00

Total Particulate Matter

PER 003 EU 001 0.000E+00 6.570E+01 0.000E+00

PER 003 EU 002 0.000E+00 6.570E+01 0.000E+00

PER 003 EU 004 1.168E+03

PER 003 EU 006 7.917E+01

PER 003 EU 007 4.469E+03

PER 003 EU 009 3.232E+02

PER 003 EU 011 1.314E+01

PER 003 EU 012 1.314E+01

PER 003 EU 013 1.314E+01

PER 003 EU 014 1.314E+01

PER 003 EU 015 1.314E+01

PER 003 EU 016 1.314E+01

PER 003 EU 017 1.314E+01

PER 003 EU 018 1.314E+01

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

Retired

By (Action) Added

By (Action) Item Pollutant 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

PER 003 EU 019 1.314E+01

PER 003 EU 020 1.314E+01

PER 003 EU 021 5.309E+01

PER 001 EU 023 6.300E-01 1.600E-01 1.600E-01

PER 003 EU 023 5.980E+00 1.500E+00 1.500E+00

PER 001 EU 024 6.300E-01 1.600E-01 1.600E-01

PER 003 EU 024 5.980E+00 1.500E+00 1.500E+00

PER 001 SV 001 6.430E-01 4.390E+01 2.820E+00

PER 003 SV 001 1.500E+00 0.000E+00 6.570E+00

PER 001 SV 002 7.110E+00 2.243E+02 3.110E+01

PER 003 SV 002 9.700E-01 0.000E+00 4.240E+00

PER 001 SV 003 5.100E+00 1.783E+02 2.234E+01

PER 003 SV 003 1.795E+01 0.000E+00 7.862E+01

PER 001 SV 004 1.290E+00 5.650E+00 5.650E+00

PER 003 SV 004 1.210E-01 0.000E+00 5.310E-01

PER 003 SV 008 6.000E-01 2.640E+00

PER 003 SV 009 3.730E-02 1.630E-01 1.630E-01

PER 003 SV 010 3.730E-02 1.630E-01 1.630E-01

PER 003 SV 011 3.730E-02 1.630E-01 1.630E-01

PER 003 SV 012 3.730E-02 1.630E-01 1.630E-01

PER 003 SV 013 3.730E-02 1.630E-01 1.630E-01

PER 003 SV 014 3.730E-02 1.630E-01 1.630E-01

PER 003 SV 015 3.730E-02 1.630E-01 1.630E-01

PER 003 SV 016 3.730E-02 1.630E-01 1.630E-01

PER 003 SV 017 3.730E-02 1.630E-01 1.630E-01

PER 003 SV 018 3.730E-02 1.630E-01 1.630E-01

Totals 6.359E+03 9.723E+01 0.000E+00

Sulfuric Acid Mist

PER 003 EU 001 6.570E+01

PER 003 SV 001 1.500E+00 6.570E+00

Totals 6.570E+01 6.570E+00 0.000E+00

Antimony compounds

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

PER 003 EU 004 0.000E+00 6.400E-01 0.000E+00

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

Page 19 of 225 February, 2010 15:39

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

Retired

By (Action) Added

By (Action) Item Pollutant 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

PER 003 EU 007 0.000E+00 1.300E-01 0.000E+00

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

PER 003 EU 009 0.000E+00 2.562E+01 0.000E+00

PER 003 SV 002 8.430E-02 3.690E-01

PER 003 SV 003 1.140E+00 0.000E+00 4.990E+00

PER 003 SV 008 4.000E-02 1.800E-01

Totals 2.639E+01 5.539E+00 0.000E+00

Selenium compounds

PER 003 EU 004 1.030E-05

PER 003 EU 006 1.030E-05

PER 003 EU 007 3.090E-05

PER 003 SV 002 1.320E-07 5.770E-07

PER 003 SV 003 1.880E-06 8.220E-06

PER 003 SV 008 6.590E-08 2.890E-07

PER 003 SV 009 1.180E-06 5.150E-06 5.150E-06

PER 003 SV 010 1.180E-06 5.150E-06 5.150E-06

PER 003 SV 011 1.180E-06 5.150E-06 5.150E-06

PER 003 SV 012 1.180E-06 5.150E-06 5.150E-06

PER 003 SV 013 1.180E-06 5.150E-06 5.150E-06

PER 003 SV 014 1.180E-06 5.150E-06 5.150E-06

PER 003 SV 015 1.180E-06 5.150E-06 5.150E-06

PER 003 SV 016 1.180E-06 5.150E-06 5.150E-06

PER 003 SV 017 1.180E-06 5.150E-06 5.150E-06

PER 003 SV 018 1.180E-06 5.150E-06 5.150E-06

Totals 1.030E-04 6.059E-05 0.000E+00

Sulfur Dioxide

PER 003 EU 004 1.437E+03

PER 001 EU 006 1.000E-02 4.000E-02 4.000E-02

PER 003 EU 006 0.000E+00 3.000E-02 0.000E+00

PER 003 EU 007 1.752E+03

PER 003 EU 009 3.710E+02

PER 001 EU 023 1.000E+00 2.500E-01 2.500E-01

PER 003 EU 023 5.600E+00 1.400E+00 1.400E+00

PER 001 EU 024 1.000E+00 2.500E-01 2.500E-01

PER 003 EU 024 5.600E+00 1.400E+00 1.400E+00

Page 20 of 225 February, 2010 15:39

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

Retired

By (Action) Added

By (Action) Item Pollutant 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

PER 001 SV 003 5.300E+02 2.321E+03 2.321E+03

PER 003 SV 003 5.300E+02 0.000E+00 2.321E+03

PER 003 SV 008 2.063E+01 9.034E+01

PER 003 SV 009 2.940E-03 1.290E-02 1.290E-02

PER 003 SV 010 2.940E-03 1.290E-02 1.290E-02

PER 003 SV 011 2.940E-03 1.290E-02 1.290E-02

PER 003 SV 012 2.940E-03 1.290E-02 1.290E-02

PER 003 SV 013 2.940E-03 1.290E-02 1.290E-02

PER 003 SV 014 2.940E-03 1.290E-02 1.290E-02

PER 003 SV 015 2.940E-03 1.290E-02 1.290E-02

PER 003 SV 016 2.940E-03 1.290E-02 1.290E-02

PER 003 SV 017 2.940E-03 1.290E-02 1.290E-02

PER 003 SV 018 2.940E-03 1.290E-02 1.290E-02

Totals 3.562E+03 2.414E+03 0.000E+00

Volatile Organic Compounds

PER 003 EU 004 2.400E-01

PER 001 EU 006 4.000E-02 2.000E-01 2.000E-01

PER 003 EU 006 0.000E+00 2.400E-01 0.000E+00

PER 003 EU 007 7.100E-01

PER 001 EU 009 9.360E+00 4.100E+01 4.100E+01

PER 003 EU 009 0.000E+00 1.660E-01 0.000E+00

PER 001 EU 023 9.800E-01 2.500E-01 2.500E-01

PER 003 EU 023 6.950E+00 1.740E+00 1.740E+00

PER 001 EU 024 9.800E-01 2.500E-01 2.500E-01

PER 003 EU 024 6.950E+00 1.740E+00 1.740E+00

PER 003 SV 003 1.640E+00 7.170E+00

PER 003 SV 008 3.800E-01 1.670E+00

PER 003 SV 009 2.700E-02 1.180E-01 1.180E-01

PER 003 SV 010 2.700E-02 1.180E-01 1.180E-01

PER 003 SV 011 2.700E-02 1.180E-01 1.180E-01

PER 003 SV 012 2.700E-02 1.180E-01 1.180E-01

PER 003 SV 013 2.700E-02 1.180E-01 1.180E-01

PER 003 SV 014 2.700E-02 1.180E-01 1.180E-01

PER 003 SV 015 2.700E-02 1.180E-01 1.180E-01

PER 003 SV 016 2.700E-02 1.180E-01 1.180E-01

Page 21 of 225 February, 2010 15:39

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

Retired

By (Action) Added

By (Action) Item Pollutant 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

PER 003 SV 017 2.700E-02 1.180E-01 1.180E-01

PER 003 SV 018 2.700E-02 1.180E-01 1.180E-01

Totals 6.016E+00 1.350E+01 0.000E+00

Page 22 of 22EU001 Raw Material Processing OperationCE001 Wet scrubber with lime slurry 100% capture 90% control - PM (archived reference table from GI-05a)SV00190%control - PM10(archived reference table from GI-05a)75 ton/hr processing capacity 72% control - Pb (archived reference table from GI-05a)25ton/hr production capacity(2)90%control - PM2.5(assumed based on PM10efficiency)IDAir Flow(dscfm)IPER Allowedemission rate(lb/hr)IPER PMEmissionRates(tons/yr)NESHAP LeadConcentration (forfugitive dustsource)(gr/dscf)NESHAP LeadEmissionRates (lb/hr)NESHAP LeadEmissionRates (ton/yr)SV 001 10,421 34.54 151.28 0.000870.078 0.34Item Pollutant NotesEmissionFactorEmission FactorUnits(lb/unit)EmissionFactor SourceUncontrolledHourlyPotential(lbs/hr)ControlledHourlyPotential(lbs/hour)Unrestricted/UnlimitedPotential(tpy)CaptureEfficiencyControlEfficiency(CE001)LimitedPotential(tpy)EU001 PM 6.00E-01 lb/tonAP-42 Table12.10-7(1)1.50E+01 1.5065.701.00 0.90 6.57EU001 PM106.00E-01 lb/tonassumed sameas PM1.50E+01 1.5065.701.00 0.90 6.57EU001 PM2.56.00E-01 lb/tonassumed sameas PM1.50E+01 1.5065.701.00 0.90 6.57EU001 H2SO4Pollutant listedin AP-42, butunquantifiedNAassumed sameas PM101.50E+01 1.5065.701.00 0.90 6.57EU001 Leaduncontrolledhourly is basedon limit &efficiency2.78E-01 0.0781.221.00 0.72 0.34(NESHAP limit)PM< 100 tpy, Lead < 10 tpy, so CAM does not apply(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 factoris basd on productionEU002 Raw Material Handling Operation 30 ton/hrCE008/9 Torit dust colletors 100% captureSV00899% control - PM (archived reference table from GI-05a)99%control - PM10(archived reference table from GI-05a)79% control - Pb (archived reference table from GI-05a)99%control - PM2.5(assumed based on PM10efficiency)25ton/hr production capacity(3)Item PollutantEmissionFactorEmissionFactorUnits(lb/unit)EmissionFactor SourceUncontrolledHourlyPotential(lbs/hr)ControlledHourlyPotential(lbs/hour)Unrestricted/UnlimitedPotential(tpy)CaptureEfficiencyControlEfficiency(CE008/9)CombinedEfficiencyControlledPotential(to SV008)(tpy)EU002 PM 6.00E-01 lb/tonAP-42 table12.10-7(1)15.00 0.1565.701.00 0.99 0.99 0.66EU002PM106.00E-01 lb/dscfAssume sameas PM15.00 1.0565.701.00 0.93 0.93 4.60EU002PM2.56.00E-01 lb/dscfAssume sameas PM15.00 1.0565.701.00 0.93 0.93 4.60EU002 Lead 1.98E-01 mg/dscmavg test resultsfor SV002(2)0.57 0.122.491.00 0.79 0.79 0.524.37E-07 lb/dscmconversion35.3 dscf/dscm PM< 100 tpy, Lead < 10 tpy, so CAM does not apply1.24E-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 factoris basd on productionEU004 West Reverberatory furnace 4.1 ton/hrCE004/5 Baghouse 80%capture(3)99%control - PM, PM10SV003 (20% to CE003/CE008) 79% control - metallic HAPProcess Emissionspound perlb/hruncontrolled tpy uncontrolledArsenic 1.50E-02 ton metal chargedtest(1)2.18E-02 0.10Chlorine 1.00E-01 ton metal charged FIRE 0.41 1.80Antimony 1.00E-01 ton metal chargedtest(1)0.15 0.64NOX3.00E-01 ton metal charged FIRE 1.23 5.39Cadmium 1.05E-06 ton metal produced FIRE 0.00 0.00PM2.5same as PM10? 127.10 556.70PM103.10E+01 ton metal charged FIRE 127.10 556.70PM 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 1167.27SO28.00E+01 ton metal chargedCEMS(2)328.00 1436.64HAP1169.80(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 SO2per ton of metal charged.Uncontrolled SO2= 80.00 lb/ton uncontrolled (very conservative, from AP-42 Table 12.11-2; actual data shows 22.4 lb/ton)328 lb/hr uncontrolled limit = 530 lb/hr controlled1436.64 tpy uncontrolled(3)Fugitive emissions are captured and routed to same control device as the main process emissions, so it's really 100% captureFuel Combustion10 MMBtu/hourFuels: Natural Gas 1020 MMBtu/mmcfFuel Consumption: Natural Gas 0.009803922mmcf/hour ((MMBtu/hr)/(MMBtu/mmcf))Process emissionsNatural Gas Emission FactorsTotal EmissionsTo CE004/ CE005 To FS001/FS002 (each)lb/mmcf lb/hr tpy Total lb/hr Total tpy lb/hr tpy lb/hr tpyPM 7.6 0.0745098 0.326352941 266.57 1167.60 213.26 934.08 26.66 116.76PM107.6 0.0745098 0.326352941 127.17 557.02 101.74 445.62 12.72 55.70PM2.57.6 0.0745098 0.326352941 127.17 557.02 101.74 445.62 12.72 55.70SO20.6 0.00588235 0.025764706 328.01 1436.67 262.40 1149.33 32.80 143.67NOX100 0.98039216 4.294117647 2.21 9.68 1.77 7.75 0.22 0.97CO 84 0.82352941 3.607058824 0.82 3.61 0.66 2.89 0.08 0.36VOC 5.5 0.05392157 0.236176471 0.05 0.24 0.04 0.19 0.01 0.02Lead 0.0005 4.902E-06 2.14706E-05 266.50 1167.27 213.20 933.82 26.65 116.73Benzene 0.00213 2.0882E-05 9.14647E-05 2.09E-05 9.15E-05 1.67E-05 7.32E-05 2.09E-06 9.15E-06Dichlorobenzene 0.0012 1.1765E-05 5.15294E-05 1.18E-05 5.15E-05 9.41E-06 4.12E-05 1.18E-06 5.15E-06Formaldehyde 0.075 0.00073529 0.003220588 7.35E-04 3.22E-03 5.88E-04 2.58E-03 7.35E-05 3.22E-04Hexane 1.8 0.01764706 0.077294118 1.76E-02 7.73E-02 1.41E-02 6.18E-02 1.76E-03 7.73E-03Naphthalene 0.00061 5.9804E-06 2.61941E-05 5.98E-06 2.62E-05 4.78E-06 2.10E-05 5.98E-07 2.62E-06Toluene 0.0034 3.3333E-05 0.000146 3.33E-05 1.46E-04 2.67E-05 1.17E-04 3.33E-06 1.46E-05POM 0.0000864 8.4706E-07 3.71012E-06 8.47E-07 3.71E-06 6.78E-07 2.97E-06 8.47E-08 3.71E-07Arsensic 0.0002 1.9608E-06 8.58824E-06 2.18E-02 9.54E-02 1.74E-02 7.63E-02 2.18E-03 9.54E-03Beryllium 0.000012 1.1765E-07 5.15294E-07 1.18E-07 5.15E-07 9.41E-08 4.12E-07 1.18E-08 5.15E-08Cadmium 0.0011 1.0784E-05 4.72353E-05 1.51E-05 6.61E-05 1.21E-05 5.29E-05 1.51E-06 6.61E-06Chromium 0.0014 1.3725E-05 6.01176E-05 1.37E-05 6.01E-05 1.10E-05 4.81E-05 1.37E-06 6.01E-06Manganese 0.00038 3.7255E-06 1.63176E-05 3.73E-06 1.63E-05 2.98E-06 1.31E-05 3.73E-07 1.63E-06Mercury 0.00026 2.549E-06 1.11647E-05 2.55E-06 1.12E-05 2.04E-06 8.93E-06 2.55E-07 1.12E-06Nickel 0.0021 2.0588E-05 9.01765E-05 2.06E-05 9.02E-05 1.65E-05 7.21E-05 2.06E-06 9.02E-06Selenium 0.00024 2.3529E-06 1.03059E-05 2.35E-06 1.03E-05 1.88E-06 8.24E-06 2.35E-07 1.03E-06Chlorine0.41 1.80 3.28E-01 1.44E+00 4.10E-02 1.80E-01Antimony0.15 0.64 1.16E-01 5.09E-01 1.45E-02 6.36E-02Total HAPs 1.8886184 267.10 1169.88 213.68 935.90 26.71 116.99EU006 Scrap Dryer + Cyclone (80%) 30 ton/hrCE005 Baghouse 100% capture 99% controlProcess EmissionsEF source pound perlb/hruncontrolledtpyuncontrolledPM2.55.04E-01AP-42(2)tons of metal 15.12 66.23PM105.40E-01AP-42(2)tons of metal 16.20 70.96PM 6.00E-01AP-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 furnaces.Fuel Combustion10 MMBtu/hourFuels: Natural Gas 1020 MMBtu/mmcfFuel Consumption: Natural Gas 0.009803922mmcf/hour ((MMBtu/hr)/(MMBtu/mmcf))Natural Gas Emission FactorsTo CE004/ CE005lb/mmcf lb/hr tpy Total lb/hr Total tpy lb/hr tpyPM 7.6 7.45E-02 0.326352941 18.07 79.17 3.61 15.83PM107.6 7.45E-02 0.326352941 16.27 71.28 3.25 14.26PM2.57.6 7.45E-02 0.326352941 15.19 66.55 3.04 13.31SO20.6 5.88E-03 0.025764706 0.01 0.03 0.01 0.03NOX100 9.80E-01 4.294117647 0.98 4.29 0.98 4.29CO 84 8.24E-01 3.607058824 0.82 3.61 0.82 3.61VOC 5.5 5.39E-02 0.236176471 0.05 0.24 0.05 0.24Lead 0.0005 4.90E-06 2.14706E-05 4.90E-06 2.15E-05 9.80E-07 4.29E-06Benzene 0.00213 2.09E-05 9.14647E-05 2.09E-05 9.15E-05 2.09E-05 9.15E-05Dichlorobenzene 0.0012 1.18E-05 5.15294E-05 1.18E-05 5.15E-05 1.18E-05 5.15E-05Formaldehyde 0.075 7.35E-04 0.003220588 7.35E-04 3.22E-03 7.35E-04 3.22E-03Hexane 1.8 1.76E-02 0.077294118 1.76E-02 7.73E-02 1.76E-02 7.73E-02Naphthalene 0.00061 5.98E-06 2.61941E-05 5.98E-06 2.62E-05 5.98E-06 2.62E-05Toluene 0.0034 3.33E-05 0.000146 3.33E-05 1.46E-04 3.33E-05 1.46E-04POM 0.0000864 8.47E-07 3.71012E-06 8.47E-07 3.71E-06 8.47E-07 3.71E-06Arsensic 0.0002 1.96E-06 8.58824E-06 1.96E-06 8.59E-06 3.92E-07 1.72E-06Beryllium 0.000012 1.18E-07 5.15294E-07 1.18E-07 5.15E-07 2.35E-08 1.03E-07Cadmium 0.0011 1.08E-05 4.72353E-05 1.08E-05 4.72E-05 2.16E-06 9.45E-06Chromium 0.0014 1.37E-05 6.01176E-05 1.37E-05 6.01E-05 2.75E-06 1.20E-05Manganese 0.00038 3.73E-06 1.63176E-05 3.73E-06 1.63E-05 7.45E-07 3.26E-06Mercury 0.00026 2.55E-06 1.11647E-05 2.55E-06 1.12E-05 2.55E-06 1.12E-05Nickel 0.0021 2.06E-05 9.01765E-05 2.06E-05 9.02E-05 4.12E-06 1.80E-05Selenium 0.00024 2.35E-06 1.03059E-05 2.35E-06 1.03E-05 4.71E-07 2.06E-06Total HAPs 1.8886184 1.85E-02 8.11E-02 1.85E-02 8.09E-02EU007 East Reverberatory furnace 20 ton/hrCE004/5 Baghouse 99% control - PM79% control - metallic HAPCE007 Afterburner 100% capture 95% control - VOC and CO - & volatile HAPCE008SO2control100% capture 40%control - SO2pound perlb/hruncontrolledlb/hr toFS003/FS001lb/hr toCE004/5tpyuncontrolledcapturecontrol(CE004/5) overallArsenic 1.50E-02 ton metal chargedtest(1)4.46E-03 8.93E-04 3.57E-03 0.02 0.80 0.79 0.63Chlorine 1.00E-01 ton metal charged FIRE 2.00 4.00E-01 1.60E+00 8.76 0.80 0.00 0.00Antimony 1.00E-01 ton metal chargedtest(1)0.03 5.95E-03 2.38E-02 0.13 0.80 0.79 0.63NOX3.00E-01 ton metal charged FIRE 6.00 1.20E+00 4.80E+00 26.28 0.80 0.00 0.00Cadmium 1.05E-06 ton metal produced FIRE 0.00 4.20E-06 1.68E-05 0.00 0.80 0.79 0.63PM2.5same as PM10?620.00 1.24E+02 4.96E+02 2715.60 0.80 0.99 0.79PM103.10E+01 ton metal charged FIRE 620.00 1.24E+02 4.96E+02 2715.60 0.80 0.99 0.79PM 5.10E+01 ton metal charged FIRE 1020.00 2.04E+02 8.16E+02 4467.60 0.80 0.99 0.79Lead 6.50E+01 ton lead produced AP-42/FIRE 1300.00 2.60E+02 1.04E+03 5694.00 0.80 0.79 0.63SO22.00E+01 ton metal chargedCEMS(2)399.90 8.00E+01 1.60E+02 1751.57 0.80 0.40 0.32HAP5702.91(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 SO2per 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 uncontrolled399.90 lb/hr uncontrolled limit = 530 lb/hr controlled1751.57 tpy uncontrolledFuel Combustion30 MMBtu/hourFuels: Natural Gas 1020 MMBtu/mmcfFuel Consumption: Natural Gas 0.029411765mmcf/hour ((MMBtu/hr)/(MMBtu/mmcf))Natural Gas Emission FactorsTo CE004/ CE005 To FS003/FS001 (each)lb/mmcf lb/hr tpy Total lb/hr Total tpy lb/hr tpy lb/hr tpyPM 7.6 0.22352941 0.979058824 1020.22 4468.58 816.18 3574.86 102.02 446.86PM107.6 0.22352941 0.979058824 620.22 2716.58 496.18 2173.26 62.02 271.66PM2.57.6 0.22352941 0.979058824 620.22 2716.58 496.18 2173.26 62.02 271.66SO20.6 0.01764706 0.077294118 399.92 1751.65 191.96 840.79 24.00 105.10NOX100 2.94117647 12.88235294 8.94 39.16 7.15 31.33 0.89 3.92CO 84 2.47058824 10.82117647 2.47 10.82 0.10 0.43 0.25 1.08VOC 5.5 0.16176471 0.708529412 0.16 0.71 0.01 0.03 0.02 0.07Lead 0.0005 1.4706E-05 6.44118E-05 1300.00 5694.00 1040.00 4555.20 130.00 569.40Benzene 0.00213 6.2647E-05 0.000274394 6.26E-05 2.74E-04 2.51E-06 1.10E-05 0.00 0.00Dichlorobenzene 0.0012 3.5294E-05 0.000154588 3.53E-05 1.55E-04 1.41E-06 6.18E-06 0.00 0.00Formaldehyde 0.075 0.00220588 0.009661765 2.21E-03 9.66E-03 8.82E-05 3.86E-04 0.00 0.00Hexane 1.8 0.05294118 0.231882353 5.29E-02 2.32E-01 2.12E-03 9.28E-03 0.01 0.02Naphthalene 0.00061 1.7941E-05 7.85824E-05 1.79E-05 7.86E-05 7.18E-07 3.14E-06 0.00 0.00Toluene 0.0034 0.0001 0.000438 1.00E-04 4.38E-04 4.00E-06 1.75E-05 0.00 0.00POM 0.0000864 2.5412E-06 1.11304E-05 2.54E-06 1.11E-05 1.02E-07 4.45E-07 0.00 0.00Arsensic 0.0002 5.8824E-06 2.57647E-05 4.47E-03 1.96E-02 3.58E-03 1.57E-02 0.00 0.00Beryllium 0.000012 3.5294E-07 1.54588E-06 3.53E-07 1.55E-06 2.82E-07 1.24E-06 0.00 0.00Cadmium 0.0011 3.2353E-05 0.000141706 5.34E-05 2.34E-04 4.27E-05 1.87E-04 0.00 0.00Chromium 0.0014 4.1176E-05 0.000180353 4.12E-05 1.80E-04 3.29E-05 1.44E-04 0.00 0.00Manganese 0.00038 1.1176E-05 4.89529E-05 1.12E-05 4.90E-05 8.94E-06 3.92E-05 0.00 0.00Mercury 0.00026 7.6471E-06 3.34941E-05 7.65E-06 3.35E-05 6.12E-06 2.68E-05 0.00 0.00Nickel 0.0021 6.1765E-05 0.000270529 6.18E-05 2.71E-04 4.94E-05 2.16E-04 0.00 0.00Selenium 0.00024 7.0588E-06 3.09176E-05 7.06E-06 3.09E-05 5.65E-06 2.47E-05 0.00 0.00Chlorine2.00 8.76 1.60E+00 7.01E+00 0.20 0.88Antimony0.03 0.13 2.38E-02 1.04E-01 0.00 0.01Total HAPs 1.8886184 1302.09 5703.15 1041.63 4562.34 130.21 570.32EU009 Blast Furnace 4.5 ton/hrCE004/5 Baghouse 80% capture 99% control - PM, PM10Coke 0.54 ton/h79% control - metallic HAPCE007 Afterburner 100% capture 95% control - VOC and CO - & volatile HAPpound perlb/hr uncontrolledlb/hr uncaptured(to FS004/FS001)lb/hr captured(to CE004/5)tpyuncontrolledcapture control overallPM101.00E+00 ton lead produced FIRE 4.50E+00 0.9 3.60 19.71 0.80 0.99 0.79PM 1.64E+01 ton lead produced FIRE 7.38E+01 14.76 59.04 323.24 0.80 0.99 0.79PM2.51.00E+00 ton lead produced assumed = PM104.50E+00 0.9 3.60 19.71 0.80 0.99 0.79SO21.88E+01 ton metal chargedCEMS(1)8.47E+01 16.94 67.76 370.99 0.80 0.40 0.32NOx 1.00E-01 ton lead produced FIRE 4.50E-01 0.80 0.00 0.00NOx 2.10E+01 ton Coke burned FIRE 1.13E+01 0.80 0.00 0.00NOX- total1.18E+01 2.36 9.43 51.64 0.80 0.00 0.00VOC 7.00E-02 ton Coke burned FIRE 3.78E-02 0.00 0.04 0.17 1.00 0.95 0.95CO 1.80E+01 ton lead produced FIRE 8.10E+01CO 6.00E-01 ton Coke burned FIRE 3.24E-01CO - Total8.13E+01 0.00 81.32 356.20 1.00 0.95 0.95Lead 6.50E+01 ton lead produced Same as EU004 2.93E+02 58.50 234.00 1281.15 0.80 0.79 0.63Acetaldehyde 4.80E-02 ton lead produced FIRE 2.16E-01 0.95 1.00 0.95 0.95Acetophenone 9.60E-03 ton lead produced FIRE 4.32E-02 0.19 1.00 0.95 0.95Acrolein 1.80E-02 ton lead produced FIRE 8.10E-02 0.35 1.00 0.95 0.95Benzene 2.20E-01 ton lead produced FIRE 9.90E-01 4.34 1.00 0.95 0.95Arsenic 2.90E+00 ton lead produced FIRE 1.31E+01 57.16 1.00 0.95 0.95Bis (2-ethylhexyl) phthalate (DEHP) 2.10E-02 ton lead produced FIRE 9.45E-02 0.41 1.00 0.95 0.951,3-Butadiene 7.90E-01 ton lead produced FIRE 3.56E+00 15.57 1.00 0.95 0.95Beryllium 2.20E+00 ton lead produced FIRE 9.90E+00 43.36 0.80 0.00 0.00Biphenyl 3.20E-02 ton lead produced FIRE 1.44E-01 0.63 1.00 0.95 0.95Carbon disulfide 2.70E-01 ton lead produced FIRE 1.22E+00 5.32 1.00 0.95 0.95Chlorine 1.00E-01 ton lead produced FIRE 4.50E-01 1.97 0.80 0.00 0.00Chlorobenzene 7.30E-03 ton lead produced FIRE 3.29E-02 0.14 1.00 0.95 0.95Cadmium 7.86E-05 ton lead produced Permittee 3.54E-04 0.0015 0.80 0.79 0.63Chromium 1.44E-05 ton Coke burned FIRE 7.78E-06 0.000034 0.80 0.79 0.63Cumene 8.00E-03 ton lead produced FIRE 3.60E-02 0.16 1.00 0.95 0.95Ethylbenzene 6.70E-02 ton lead produced FIRE 3.02E-01 1.32 1.00 0.95 0.95Formaldehyde 1.20E-02 ton lead produced FIRE 5.40E-02 0.24 1.00 0.95 0.95Hexane 2.90E-02 ton lead produced FIRE 1.31E-01 0.57 1.00 0.95 0.95Naphthalene 6.10E-02 ton lead produced FIRE 2.75E-01 1.20 1.00 0.95 0.95Mercury 1.05E-04 ton Coke burned Permittee 5.69E-05 0.000249 0.80 0.79 0.63Phenol 3.70E-02 ton lead produced FIRE 1.67E-01 0.73 1.00 0.95 0.95Styrene 4.30E-01 ton lead produced FIRE 1.94E+00 8.48 1.00 0.95 0.95Toluene 2.20E-01 ton lead produced FIRE 9.90E-01 4.34 1.00 0.95 0.95Xylenes 5.00E-02 ton lead produced FIRE 2.25E-01 0.99 1.00 0.95 0.95Methylene chloride (Dichloromethane) 2.00E-01 ton lead produced FIRE 9.00E-01 3.94 1.00 0.95 0.95Nickel 2.26E-04 ton Coke burned FIRE 1.22E-04 0.000535 0.80 0.79 0.63Antimony 1.30E+00 ton lead produced FIRE 5.85E+00 25.62 0.80 0.79 0.63(1)This is derived from CEMS data, which is in terms of tons of SO2per ton of metal charged.Controlled SO2= 0.0094 ton emitted/ton metal (conservative estimate based on EI)0.0094 ton generated/ton metal18.82 lb/ton uncontrolled84.70 lb/hr uncontrolled limit = 530 lb/hr controlled370.99 tpy uncontrolledTo CE004/ CE005 To FS004/FS001 (each)Total lb/hr Total tpylb/hr tpy lb/hr tpyPM 7.38E+01 3.23E+02 5.90E+01 2.59E+02 7.38 32.32PM104.50E+00 1.97E+01 3.60E+00 1.58E+01 0.45 1.97PM2.54.50E+00 1.97E+01 3.60E+00 1.58E+01 0.45 1.97SO28.47E+01 3.71E+02 4.07E+01 1.78E+02 5.08 22.26NOX1.18E+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-01POM0.00E+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-05Selenium0.00E+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

PM 10 

### 0.03 lb/ton assumed same as PM

PM 2.5 

### 0.03 lb/ton assumed same as PM 10 

### 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

PM 10 

### 3 13.14 0.8 6 26.28 24 105.12

PM 2.5 

### 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

PM 10 

### 7.6 3.73E-02 1.63E-01

PM 2.5 

### 7.6 3.73E-02 1.63E-01

SO 2 

### 0.6 2.94E-03 1.29E-02

NO X 

### 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

NO X 

### 4.41 85.11 21.28

CO 0.95 18.34 4.58

SO 2 

### 0.29 5.60 1.40

PM 0.31 5.98 1.50

PM 10 

### 0.31 5.98 1.50

PM 2.5 

### 0.31 5.98 1.50

VOC 0.36 6.95 1.74SV002 LimitsIDAir Flow(dscfm)PM IPERConcentration(gr/dscf)PM IPEREmissionRates (lb/hr)PM IPEREmission Rates(tons/yr)SV 002 160,819 0.0362 49.91 218.61IDAir Flow(dscfm)SIP LeadConcentration(gr/dscf)SIP LeadEmissionRates (lb/hr)SIP AllowableLeadEmission Rates(tons/yr)NESHAP LeadConcentration(gr/dscf)NESHAP LeadCmpdsEmissionRates (lb/hr)NESHAP LeadCmpds EmissionRates (ton/yr)SV 002 160,819 0.00253.45 15.090.000871.20 5.250.43402001 0.151038964CE003 control efficiency: Particulate 99%Metallic HAP 79%SV002 EmissionsTotal Controlled Total Uncontrolled FS005/FS006/ CE002 Ref kettles FS001 (2/3)*lb/hr tpy lb/hr tpy lb/hr tpy lb/hr tpyPM 0.97 4.24 9.67E+01 4.24E+02 6.00 26.28 90.71 397.29PM100.56 2.46 5.61E+01 2.46E+02 6.00 26.28 50.13 219.55PM2.50.56 2.46 5.61E+01 2.46E+02 6.00 26.28 50.13 219.55SO243.25 189.44 4.33E+01 1.89E+02 2.00 8.76 41.25 180.68NOX3.53 15.46 3.53E+00 1.55E+01 2.00 8.76 1.53 6.70CO 5.64 24.71 5.64E+00 2.47E+01 0.00 0.00 5.64 24.71VOC 0.02 0.07 1.69E-02 7.40E-02 0.00 0.00 0.02 0.07Lead (limit) 1.20 5.25NA - limit NA - limit NA - limit NA - limitBenzene 6.60E-02 2.89E-01 6.60E-02 2.89E-01 0.07 0.29Dichlorobenzene 3.14E-06 1.37E-05 3.14E-06 1.37E-05 0.00 0.00Formaldehyde 3.80E-03 1.66E-02 3.80E-03 1.66E-02 0.00 0.02Hexane 1.34E-02 5.87E-02 1.34E-02 5.87E-02 0.01 0.06Naphthalene 1.83E-02 8.02E-02 1.83E-02 8.02E-02 0.02 0.08Toluene 6.60E-02 2.89E-01 6.60E-02 2.89E-01 0.07 0.29POM 2.26E-07 9.89E-07 2.26E-07 9.89E-07 0.00 0.00Arsensic 1.83E-01 8.02E-01 8.72E-01 3.82E+00 0.87 3.82Beryllium 1.39E-01 6.07E-01 6.60E-01 2.89E+00 0.66 2.89Cadmium 5.91E-06 2.59E-05 2.81E-05 1.23E-04 0.00 0.00Chromium 8.77E-07 3.84E-06 4.18E-06 1.83E-05 0.00 0.00Manganese 2.09E-07 9.14E-07 9.93E-07 4.35E-06 0.00 0.00Mercury 4.47E-06 1.96E-05 4.47E-06 1.96E-05 0.00 0.00Nickel 2.86E-06 1.25E-05 1.36E-05 5.97E-05 0.00 0.00Selenium 1.32E-07 5.77E-07 6.27E-07 2.75E-06 0.00 0.00Chlorine 4.00E-02 1.75E-01 1.91E-01 8.35E-01 0.19 0.84Antimony 8.43E-02 3.69E-01 4.02E-01 1.76E+00 0.40 1.76Total HAPs 1.81 7.94 1.29E+02 5.64E+02 2.00 8.76 126.82 555.48SV003 EmissionsIDAir Flow(dscfm)PM IPERConcentration(gr/dscf)PM IPEREmissionRates (lb/hr)PM IPEREmission Rates(tons/yr)PM NSPS limit(gr/dscf)PM10permit limit(equal to PMlimit) (gr/dscf)Allowed PM(lb/hr)AllowedPM (tpy)AllowedPM10(lb/hr)Allowed PM10(tpy)SV 003 95,188 0.0429 35.02 153.37 0.022 0.02217.95 78.62 17.95 78.62IDAir Flow(dscfm)SIP LeadConcentration(gr/dscf)SIP LeadEmissionRates (lb/hr)SIPAllowableLeadEmission Rates(tons/yr)NESHAP LeadConcentration (gr/dscf)NESHAPLeadCmpdsEmissionRates (lb/hr)NESHAP LeadCmpds EmissionRates (ton/yr)SO2(lb/hr) SO2(tpy)SV 003 95,188 0.003062.50 10.940.000870.71 3.11 530 2321.4Baghouse control efficiency: Particulate 99%Particulate HAP 79%PM10PM2.5SV003 EmissionsTotal Controlled Total Uncontrolled EU004 EU007 EU009 Refining kettles EU006 FS002/ FS003/ FS004/lb/hr tpy lb/hr tpy lb/hr tpy lb/hr tpy lb/hr tpy lb/hr tpy lb/hr tpy lb/hr tpy lb/hr tpy lb/hr tpyPM (limit = 17.95 lb/hr) 17.95 78.62NA - limit NA - limit NA - limit NA - limit NA - limit NA - limit NA - limit NA - limit NA - limit NA - limit NA - limit NA - limit26.66 116.76 102.02 446.86 7.38 32.32PM10(assume same as PM limit)17.95 78.62NA - limit NA - limit1.02E+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 55.70 62.02 271.66 0.45 1.97PM2.5(assume same as PM limit)17.95 78.62NA - limit NA - limit1.02E+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 55.70 62.02 271.66 0.45 1.97SO2(limit)530 2321.4NA - limit NA - limit NA - limit NA - limit NA - limit NA - limit NA - limit NA - limit NA - limit NA - limit32.80 143.67 24.00 105.10 5.08 22.26NOX21.63 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 0.97 0.89 3.92 1.18 5.16CO 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 0.36 0.25 1.08 8.13 35.62VOC * 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 0.02 0.02 0.07 0.00 0.02Lead (limit) 0.71 3.11NA - 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 - limit NA - limit NA - limit NA - limit NA - limitBenzene 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 0.00 0.00 0.00 0.10 0.43Dichlorobenzene 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 0.00 0.00 0.00 0.00 0.00Formaldehyde 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 0.00 0.00 0.00 0.01 0.02Hexane 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 0.01 0.01 0.02 0.01 0.06Naphthalene 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 0.00 0.00 0.00 0.03 0.12Toluene 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 0.00 0.00 0.00 0.10 0.43POM 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 0.00 0.00 0.00 0.00 0.00Arsensic 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 0.01 0.00 0.00 1.31 5.72Beryllium 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 0.00 0.00 0.00 0.99 4.34Cadmium 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 0.00 0.00 0.00 0.00 0.00Chromium 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 0.00 0.00 0.00 0.00 0.00Manganese 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 0.00 0.00 0.00 0.00 0.00Mercury 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 0.00 0.00 0.00 0.00 0.00Nickel 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 0.00 0.00 0.00 0.00 0.00Selenium 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 0.00 0.00 0.00 0.00 0.00Chlorine 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 0.18 0.20 0.88 0.05 0.20Antimony 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 0.06 0.00 0.01 0.59 2.56Total 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 26.71 116.99 130.21 570.32 33.31 145.91Acetaldehyde 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-022.16E-02 9.46E-02Acetophenone 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-034.32E-03 1.89E-02Acrolein 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-028.10E-03 3.55E-02Bis (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-029.45E-03 4.14E-021,3-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-013.56E-01 1.56E+00Biphenyl 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-021.44E-02 6.31E-02Carbon 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-011.22E-01 5.32E-01Chlorobenzene 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-033.29E-03 1.44E-02Cumene 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-033.60E-03 1.58E-02Ethylbenzene 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-023.02E-02 1.32E-01Phenol 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-021.67E-02 7.29E-02Styrene 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-011.94E-01 8.48E-01Xylenes 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-022.25E-02 9.86E-02Methylene 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-019.00E-02 3.94E-01* Total VOC is assumed to the sum of the individual volatile HAPsSV008 EmissionsIDAir Flow(dscfm)PM IPERConcentration(gr/dscf)PM IPEREmissionRates (lb/hr)PM IPEREmission Rates(tons/yr)PM NSPS limit(gr/dscf)PM10permit limit(equal to PMlimit) (gr/dscf)SV 008 130,043 0.0388 43.24 189.37 NA NAIDAir Flow(dscfm)SIP LeadConcentration(gr/dscf)SIP LeadEmissionRates (lb/hr)SIP AllowableLeadEmission Rates(tons/yr)NESHAP LeadConcentration (gr/dscf)NESHAP LeadCmpdsEmissionRates (lb/hr)NESHAP LeadCmpds EmissionRates (ton/yr)SV 008 130,043 0.003063.41 14.940.000870.97 4.25Baghouse control efficiency: Particulate 99%Particulate HAP 79%PM1099%PM2.599%SV008 EmissionsTotal Controlled Total Uncontrolled EU002 FS001 (1/3)**lb/hr tpy lb/hr tpy lb/hr tpy lb/hr tpyPM (limit = 17.95 lb/hr) 0.60 2.64 6.04E+01 2.64E+02 1.50E+01 6.57E+01 4.54E+01 1.99E+02PM10(assume same as PM limit) 0.40 1.75 4.01E+01 1.75E+02 1.50E+01 6.57E+01 2.51E+01 1.10E+02PM2.5(assume same as PM limit) 0.40 1.75 4.01E+01 1.75E+02 1.50E+01 6.57E+01 2.51E+01 1.10E+02SO220.63 90.34 2.06E+01 9.03E+01 2.06E+01 9.03E+01NOX0.76 3.35 7.65E-01 3.35E+00 7.65E-01 3.35E+00CO 2.82 12.35 2.82E+00 1.24E+01 2.82E+00 1.24E+01VOC * 0.38 1.67 8.45E-03 3.70E-02 8.45E-03 3.70E-02Lead (limit) 0.97 4.25 6.25E+01 2.74E+02 5.69E-01 2.49E+00 6.20E+01 2.71E+02Benzene 0.03 0.14 3.30E-02 1.45E-01 3.30E-02 1.45E-01Dichlorobenzene 1.57E-06 6.87E-06 1.57E-06 6.87E-06 1.57E-06 6.87E-06Formaldehyde 0.0019 0.0083 1.90E-03 8.31E-03 1.90E-03 8.31E-03Hexane 6.70E-03 2.94E-02 6.70E-03 2.94E-02 6.70E-03 2.94E-02Naphthalene 9.15E-03 4.01E-02 9.15E-03 4.01E-02 9.15E-03 4.01E-02Toluene 3.30E-02 1.45E-01 3.30E-02 1.45E-01 3.30E-02 1.45E-01POM 1.13E-07 4.95E-07 1.13E-07 4.95E-07 1.13E-07 4.95E-07Arsensic 0.09 0.40 4.36E-01 1.91E+00 4.36E-01 1.91E+00Beryllium 0.07 0.30 3.30E-01 1.45E+00 3.30E-01 1.45E+00Cadmium 2.95E-06 1.29E-05 1.41E-05 6.16E-05 1.41E-05 6.16E-05Chromium 4.39E-07 1.92E-06 2.09E-06 9.15E-06 2.09E-06 9.15E-06Manganese 1.04E-07 4.57E-07 4.97E-07 2.18E-06 4.97E-07 2.18E-06Mercury 2.24E-06 9.80E-06 2.24E-06 9.80E-06 2.24E-06 9.80E-06Nickel 1.43E-06 6.27E-06 6.81E-06 2.98E-05 6.81E-06 2.98E-05Selenium 6.59E-08 2.89E-07 3.14E-07 1.37E-06 3.14E-07 1.37E-06Chlorine 0.10 0.42 9.53E-02 4.18E-01 9.53E-02 4.18E-01Antimony 0.04 0.18 2.01E-01 8.80E-01 2.01E-01 8.80E-01Total HAPs 1.65 7.23 6.34E+01 2.78E+02 6.34E+01 2.78E+02Acetaldehyde 7.20E-03 3.15E-02 7.20E-03 3.15E-02 7.20E-03 3.15E-02Acetophenone 1.44E-03 6.31E-03 1.44E-03 6.31E-03 1.44E-03 6.31E-03Acrolein 2.70E-03 1.18E-02 2.70E-03 1.18E-02 2.70E-03 1.18E-02Bis (2-ethylhexyl) phthalate (DEHP) 3.15E-03 1.38E-02 3.15E-03 1.38E-02 3.15E-03 1.38E-021,3-Butadiene 1.19E-01 5.19E-01 1.19E-01 5.19E-01 1.19E-01 5.19E-01Biphenyl 4.80E-03 2.10E-02 4.80E-03 2.10E-02 4.80E-03 2.10E-02Carbon disulfide 4.05E-02 1.77E-01 4.05E-02 1.77E-01 4.05E-02 1.77E-01Chlorobenzene 1.10E-03 4.80E-03 1.10E-03 4.80E-03 1.10E-03 4.80E-03Cumene 1.20E-03 5.26E-03 1.20E-03 5.26E-03 1.20E-03 5.26E-03Ethylbenzene 1.01E-02 4.40E-02 1.01E-02 4.40E-02 1.01E-02 4.40E-02Phenol 5.55E-03 2.43E-02 5.55E-03 2.43E-02 5.55E-03 2.43E-02Styrene 6.45E-02 2.83E-01 6.45E-02 2.83E-01 6.45E-02 2.83E-01Xylenes 7.50E-03 3.29E-02 7.50E-03 3.29E-02 7.50E-03 3.29E-02Methylene chloride (Dichloromethane) 3.00E-02 1.31E-01 3.00E-02 1.31E-01 3.00E-02 1.31E-01* 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 SV008Minnesota Pollution Control AgencyAir Emissions Summary For Year 2008Page 1 of 11Gopher Resource LLC (Facility ID#: 03700016)1Actual tonsSCCCapt%Contr%Comb%PollutantControlThroughputSeg DescriptionUnitsUnit#EmissionCalculationSegUnit Description1EquipmentFactorMethod1(lb/unit)0.00003040040280.0079.0076.47LeadFabric Filter - HighT788.40SmeltingHours of oEU 004.0064Stack test1West Reverberatory Fu080.0079.0076.47Fabric Filter - HighT788.40Stack test0.1000.00NOx690.00Tons of me.3000AP-42/FIRE0.00690.00AP-42/FIRE0.060080.0099.0079.99PMFabric Filter - HighT788.40Hours of o11.3000Stack test080.0099.0079.99Fabric Filter - HighT788.40Stack test0.720080.0099.0079.99PM10Fabric Filter - HighT788.40Hours of o7.9000Stack test080.0099.0079.99Fabric Filter - HighT788.40Stack test08.3000.00SO2690.00Tons of me.0000CEM0.00690.00CEM0.020010200603.00CO.49Natural gasMillion cuEU 00484.0000AP-42/FIRE2West Reverberatory Fu0.00.49AP-42/FIRE0.000080.0079.0076.47LeadFabric Filter - HighT.49Million cu.0064Stack test080.0079.0076.47Fabric Filter - HighT.49Stack test0.0200.00NOx.49Million cu100.0000AP-42/FIRE0.00.49AP-42/FIRE0.000080.0099.0079.99PMFabric Filter - HighT.49Million cu11.3000Stack test080.0099.0079.99Fabric Filter - HighT.49Stack test0.000080.0099.0079.99PM10Fabric Filter - HighT.49Million cu7.9000Stack test080.0099.0079.99Fabric Filter - HighT.49Stack test0.1000.00SO2.49Million cu.0000CEM0.00.49CEM0.0000VOC.49Million cu5.5000AP-42/FIRE0.49AP-42/FIRE0.00003040049980.0079.0076.47LeadFabric Filter - HighT251,920.00DryerTons proceEU 006.0000AP-42/FIRE1Scrap Dryer080.0079.0076.47Fabric Filter - HighT251,920.00AP-42/FIRE0.180010200603.00CO4.20Natural gasMillion cuEU 00684.0000AP-42/FIRE2Scrap Dryer0.004.20AP-42/FIRE0.2100.00NOx4.20Million cu100.0000AP-42/FIRE0.004.20AP-42/FIRE0.000080.0099.0079.99PMFabric Filter - HighT4.20Million cu7.6000AP-42/FIRE080.0099.0079.99Fabric Filter - HighT4.20AP-42/FIRE0.000080.0099.0079.99PM10Fabric Filter - HighT4.20Million cu7.6000AP-42/FIRE080.0099.0079.99Fabric Filter - HighT4.20AP-42/FIRE0.0000.00SO24.20Million cu.6000AP-42/FIRE0.004.20AP-42/FIREMinnesota Pollution Control AgencyAir Emissions Summary For Year 2008Page 2 of 11Gopher Resource LLC (Facility ID#: 03700016)0.0100VOC4.20Million cu5.5000AP-42/FIRE04.20AP-42/FIRE0.00003040040280.0079.0076.47LeadFabric Filter - HighT1,270.20SmeltingHours of oEU 007.0064Stack test1East Reverberatory Fur076.471,270.20Stack test080.0079.0076.47Fabric Filter - HighT1,270.20Stack test037.7900.00NOx251,920.00Tons of me.3000AP-42/FIRE0.00251,920.00AP-42/FIRE0.00251,920.00AP-42/FIRE07.100080.0099.0079.99PMFabric Filter - HighT1,270.20Hours of o11.3000Stack test079.991,270.20Stack test080.0099.0079.99Fabric Filter - HighT1,270.20Stack test08.600080.0099.0079.99PM10Fabric Filter - HighT1,270.20Hours of o7.9000Stack test079.991,270.20Stack test080.0099.0079.99Fabric Filter - HighT1,270.20Stack test01420.4000.00SO2251,920.00Tons of me.0000CEM0.00251,920.00CEM0.00251,920.00CEM05.960010200603.00CO142.00Natural gasMillion cuEU 00784.0000AP-42/FIRE2East Reverberatory Fur0.00142.00AP-42/FIRE0.00142.00AP-42/FIRE0.000080.0079.0076.47LeadFabric Filter - HighT142.00Million cu.0064Stack test076.47142.00Stack test080.0079.0076.47Fabric Filter - HighT142.00Stack test07.1000.00NOx142.00Million cu100.0000AP-42/FIRE0.00142.00AP-42/FIRE0.00142.00AP-42/FIRE0.000080.0099.0079.99PMFabric Filter - HighT142.00Million cu11.3000Stack test079.99142.00Stack test080.0099.0079.99Fabric Filter - HighT142.00Stack test0.000080.0099.0079.99PM10Fabric Filter - HighT142.00Million cu7.9000Stack test079.99142.00Stack test080.0099.0079.99Fabric Filter - HighT142.00Stack test027.0000.00SO2142.00Million cu.0000CEM0.00142.00CEM0.00142.00CEM0.3900VOC142.00Million cu5.5000AP-42/FIRE0142.00AP-42/FIRE0142.00AP-42/FIRE0348.490030400403.00CO38,721.00SmeltingTons of meEU 00918.0000AP-42/FIRE1Blast FurnaceMinnesota Pollution Control AgencyAir Emissions Summary For Year 2008Page 3 of 11Gopher Resource LLC (Facility ID#: 03700016)0.0038,721.00AP-42/FIRE0.0038,721.00AP-42/FIRE0.020080.0079.0076.47LeadFabric Filter - HighT7,481.04Hours of o.0064Stack test076.477,481.04Stack test080.0079.0076.47Fabric Filter - HighT7,481.04Stack test01.9400.00NOx38,721.00Tons of me.1000AP-42/FIRE0.0038,721.00AP-42/FIRE0.0038,721.00AP-42/FIRE037.440080.0099.0079.99PMFabric Filter - HighT7,481.04Hours of o11.3000Stack test079.997,481.04Stack test080.0099.0079.99Fabric Filter - HighT7,481.04Stack test045.700080.0099.0079.99PM10Fabric Filter - HighT7,481.04Hours of o7.9000Stack test079.997,481.04Stack test080.0099.0079.99Fabric Filter - HighT7,481.04Stack test0207.0000.00SO238,721.00Tons of me.0000CEM0.0038,721.00CEM0.0038,721.00CEM0.990010100801.00CO3,293.00CokeTons burneEU 009.6000AP-42/FIRE2Blast Furnace0.003,293.00AP-42/FIRE0.003,293.00AP-42/FIRE0.000080.0079.0076.47LeadFabric Filter - HighT3,293.00Tons burne.0064Stack test076.473,293.00Stack test080.0079.0076.47Fabric Filter - HighT3,293.00Stack test034.5800.00NOx3,293.00Tons burne21.0000AP-42/FIRE0.003,293.00AP-42/FIRE0.003,293.00AP-42/FIRE0.000080.0099.0079.99PMFabric Filter - HighT3,293.00Tons burne11.3000Stack test079.993,293.00Stack test080.0099.0079.99Fabric Filter - HighT3,293.00Stack test0.000080.0099.0079.99PM10Fabric Filter - HighT3,293.00Tons burne7.9000Stack test079.993,293.00Stack test080.0099.0079.99Fabric Filter - HighT3,293.00Stack test020.2000.00SO23,293.00Tons burne.0000CEM0.003,293.00CEM0.003,293.00CEM0.1200VOC3,293.00Tons burne.0700AP-42/FIRE03,293.00AP-42/FIRE03,293.00AP-42/FIRE0.02003040042680.0079.0079.26LeadFabric Filter - HighT19,025.00RefiningTons of meEU 011.0100AP-42/FIRE1Refining Kettle No. 1Minnesota Pollution Control AgencyAir Emissions Summary For Year 2008Page 4 of 11Gopher Resource LLC (Facility ID#: 03700016)080.0079.0079.26Fabric Filter - HighT19,025.00AP-42/FIRE080.0079.0079.26Fabric Filter - LowT19,025.00AP-42/FIRE0.060080.0099.0080.00PMFabric Filter - HighT19,025.00Tons of me.0300AP-42/FIRE080.0099.0080.00Fabric Filter - HighT19,025.00AP-42/FIRE080.0099.0080.00Fabric Filter - LowT19,025.00AP-42/FIRE0.260010200603.00CO6.12Natural gasMillion cuEU 01184.0000AP-42/FIRE2Refining Kettle No. 10.006.12AP-42/FIRE0.006.12AP-42/FIRE0.3100.00NOx6.12Million cu100.0000AP-42/FIRE0.006.12AP-42/FIRE0.006.12AP-42/FIRE0.000080.0099.0080.00PMFabric Filter - HighT6.12Million cu7.6000AP-42/FIRE080.0099.0080.00Fabric Filter - HighT6.12AP-42/FIRE080.0099.0080.00Fabric Filter - LowT6.12AP-42/FIRE0.000080.0099.0080.00PM10Fabric Filter - HighT6.12Million cu7.6000AP-42/FIRE080.0099.0080.00Fabric Filter - HighT6.12AP-42/FIRE080.0099.0080.00Fabric Filter - LowT6.12AP-42/FIRE0.0000.00SO26.12Million cu.6000AP-42/FIRE0.006.12AP-42/FIRE0.006.12AP-42/FIRE0.0200VOC6.12Million cu5.5000AP-42/FIRE06.12AP-42/FIRE06.12AP-42/FIRE0.02003040042680.0079.0079.26LeadFabric Filter - HighT20,289.00RefiningTons of meEU 012.0100AP-42/FIRE1Refining Kettle No. 2080.0079.0079.26Fabric Filter - HighT20,289.00AP-42/FIRE080.0079.0079.26Fabric Filter - LowT20,289.00AP-42/FIRE0.060080.0099.0080.00PMFabric Filter - HighT20,289.00Tons of me.0300AP-42/FIRE080.0099.0080.00Fabric Filter - HighT20,289.00AP-42/FIRE080.0099.0080.00Fabric Filter - LowT20,289.00AP-42/FIRE0.270010200603.00CO6.33Natural gasMillion cuEU 01284.0000AP-42/FIRE2Refining Kettle No. 20.006.33AP-42/FIRE0.006.33AP-42/FIRE0.3200.00NOx6.33Million cu100.0000AP-42/FIRE0.006.33AP-42/FIRE0.006.33AP-42/FIRE0.000080.0099.0080.00PMFabric Filter - HighT6.33Million cu7.6000AP-42/FIRE080.0099.0080.00Fabric Filter - HighT6.33AP-42/FIRE080.0099.0080.00Fabric Filter - LowT6.33AP-42/FIRE0.000080.0099.0080.00PM10Fabric Filter - HighT6.33Million cu7.6000AP-42/FIREMinnesota Pollution Control AgencyAir Emissions Summary For Year 2008Page 5 of 11Gopher Resource LLC (Facility ID#: 03700016)080.0099.0080.00Fabric Filter - HighT6.33AP-42/FIRE080.0099.0080.00Fabric Filter - LowT6.33AP-42/FIRE0.0000.00SO26.33Million cu.6000AP-42/FIRE0.006.33AP-42/FIRE0.006.33AP-42/FIRE0.0200VOC6.33Million cu5.5000AP-42/FIRE06.33AP-42/FIRE06.33AP-42/FIRE0.01003040042680.0079.0079.26LeadFabric Filter - HighT13,149.00RefiningTons of meEU 013.0100AP-42/FIRE1Refining Kettle No. 3080.0079.0079.26Fabric Filter - HighT13,149.00AP-42/FIRE080.0079.0079.26Fabric Filter - LowT13,149.00AP-42/FIRE0.040080.0099.0080.00PMFabric Filter - HighT13,149.00Tons of me.0300AP-42/FIRE080.0099.0080.00Fabric Filter - HighT13,149.00AP-42/FIRE080.0099.0080.00Fabric Filter - LowT13,149.00AP-42/FIRE0.170010200603.00CO4.05Natural gasMillion cuEU 01384.0000AP-42/FIRE2Refining Kettle No. 30.004.05AP-42/FIRE0.004.05AP-42/FIRE0.2000.00NOx4.05Million cu100.0000AP-42/FIRE0.004.05AP-42/FIRE0.004.05AP-42/FIRE0.000080.0099.0080.00PMFabric Filter - HighT4.05Million cu7.6000AP-42/FIRE080.0099.0080.00Fabric Filter - HighT4.05AP-42/FIRE080.0099.0080.00Fabric Filter - LowT4.05AP-42/FIRE0.000080.0099.0080.00PM10Fabric Filter - HighT4.05Million cu7.6000AP-42/FIRE080.0099.0080.00Fabric Filter - HighT4.05AP-42/FIRE080.0099.0080.00Fabric Filter - LowT4.05AP-42/FIRE0.0000.00SO24.05Million cu.6000AP-42/FIRE0.004.05AP-42/FIRE0.004.05AP-42/FIRE0.0100VOC4.05Million cu5.5000AP-42/FIRE04.05AP-42/FIRE04.05AP-42/FIRE0.02003040042680.0079.0079.26LeadFabric Filter - HighT16,815.00RefiningTons of meEU 014.0100AP-42/FIRE1Refining Kettle No. 4080.0079.0079.26Fabric Filter - HighT16,815.00AP-42/FIRE080.0079.0079.26Fabric Filter - LowT16,815.00AP-42/FIRE0.050080.0099.0080.00PMFabric Filter - HighT16,815.00Tons of me.0300AP-42/FIRE080.0099.0080.00Fabric Filter - HighT16,815.00AP-42/FIRE080.0099.0080.00Fabric Filter - LowT16,815.00AP-42/FIRE0.220010200603.00CO5.31Natural gasMillion cuEU 01484.0000AP-42/FIRE2Refining Kettle No. 4Minnesota Pollution Control AgencyAir Emissions Summary For Year 2008Page 6 of 11Gopher Resource LLC (Facility ID#: 03700016)0.005.31AP-42/FIRE0.005.31AP-42/FIRE0.2700.00NOx5.31Million cu100.0000AP-42/FIRE0.005.31AP-42/FIRE0.005.31AP-42/FIRE0.000080.0099.0080.00PMFabric Filter - HighT5.31Million cu7.6000AP-42/FIRE080.0099.0080.00Fabric Filter - HighT5.31AP-42/FIRE080.0099.0080.00Fabric Filter - LowT5.31AP-42/FIRE0.000080.0099.0080.00PM10Fabric Filter - HighT5.31Million cu7.6000AP-42/FIRE080.0099.0080.00Fabric Filter - HighT5.31AP-42/FIRE080.0099.0080.00Fabric Filter - LowT5.31AP-42/FIRE0.0000.00SO25.31Million cu.6000AP-42/FIRE0.005.31AP-42/FIRE0.005.31AP-42/FIRE0.0100VOC5.31Million cu5.5000AP-42/FIRE05.31AP-42/FIRE05.31AP-42/FIRE0.02003040042680.0079.0079.26LeadFabric Filter - HighT20,425.00RefiningTons of meEU 015.0100AP-42/FIRE1Refining Kettle No. 5080.0079.0079.26Fabric Filter - HighT20,425.00AP-42/FIRE080.0079.0079.26Fabric Filter - LowT20,425.00AP-42/FIRE0.060080.0099.0080.00PMFabric Filter - HighT20,425.00Tons of me.0300AP-42/FIRE080.0099.0080.00Fabric Filter - HighT20,425.00AP-42/FIRE080.0099.0080.00Fabric Filter - LowT20,425.00AP-42/FIRE0.270010200603.00CO6.45Natural gasMillion cuEU 01584.0000AP-42/FIRE2Refining Kettle No. 50.006.45AP-42/FIRE0.006.45AP-42/FIRE0.3200.00NOx6.45Million cu100.0000AP-42/FIRE0.006.45AP-42/FIRE0.006.45AP-42/FIRE0.000080.0099.0080.00PMFabric Filter - HighT6.45Million cu7.6000AP-42/FIRE080.0099.0080.00Fabric Filter - HighT6.45AP-42/FIRE080.0099.0080.00Fabric Filter - LowT6.45AP-42/FIRE0.000080.0099.0080.00PM10Fabric Filter - HighT6.45Million cu7.6000AP-42/FIRE080.0099.0080.00Fabric Filter - HighT6.45AP-42/FIRE080.0099.0080.00Fabric Filter - LowT6.45AP-42/FIRE0.0000.00SO26.45Million cu.6000AP-42/FIRE0.006.45AP-42/FIRE0.006.45AP-42/FIRE0.0200VOC6.45Million cu5.5000AP-42/FIREMinnesota Pollution Control AgencyAir Emissions Summary For Year 2008Page 7 of 11Gopher Resource LLC (Facility ID#: 03700016)06.45AP-42/FIRE06.45AP-42/FIRE0.02003040042680.0079.0079.26LeadFabric Filter - HighT19,760.00RefiningTons of meEU 016.0100AP-42/FIRE1Refining Kettle No. 6080.0079.0079.26Fabric Filter - HighT19,760.00AP-42/FIRE080.0079.0079.26Fabric Filter - LowT19,760.00AP-42/FIRE0.060080.0099.0080.00PMFabric Filter - HighT19,760.00Tons of me.0300AP-42/FIRE080.0099.0080.00Fabric Filter - HighT19,760.00AP-42/FIRE080.0099.0080.00Fabric Filter - LowT19,760.00AP-42/FIRE0.260010200603.00CO6.24Natural gasMillion cuEU 01684.0000AP-42/FIRE2Refining Kettle No. 60.006.24AP-42/FIRE0.006.24AP-42/FIRE0.3100.00NOx6.24Million cu100.0000AP-42/FIRE0.006.24AP-42/FIRE0.006.24AP-42/FIRE0.000080.0099.0080.00PMFabric Filter - HighT6.24Million cu7.6000AP-42/FIRE080.0099.0080.00Fabric Filter - HighT6.24AP-42/FIRE080.0099.0080.00Fabric Filter - LowT6.24AP-42/FIRE0.000080.0099.0080.00PM10Fabric Filter - HighT6.24Million cu7.6000AP-42/FIRE080.0099.0080.00Fabric Filter - HighT6.24AP-42/FIRE080.0099.0080.00Fabric Filter - LowT6.24AP-42/FIRE0.0000.00SO26.24Million cu.6000AP-42/FIRE0.006.24AP-42/FIRE0.006.24AP-42/FIRE0.0200VOC6.24Million cu5.5000AP-42/FIRE06.24AP-42/FIRE06.24AP-42/FIRE0.04003040042680.0079.0079.26LeadFabric Filter - HighT36,480.00RefiningTons of meEU 017.0100AP-42/FIRE1Refining Kettle No. 7080.0079.0079.26Fabric Filter - HighT36,480.00AP-42/FIRE080.0079.0079.26Fabric Filter - LowT36,480.00AP-42/FIRE0.110080.0099.0080.00PMFabric Filter - HighT36,480.00Tons of me.0300AP-42/FIRE080.0099.0080.00Fabric Filter - HighT36,480.00AP-42/FIRE080.0099.0080.00Fabric Filter - LowT36,480.00AP-42/FIRE0.650010200603.00CO15.36Natural gasMillion cuEU 01784.0000AP-42/FIRE2Refining Kettle No. 70.0015.36AP-42/FIRE0.0015.36AP-42/FIRE0.7700.00NOx15.36Million cu100.0000AP-42/FIRE0.0015.36AP-42/FIRE0.0015.36AP-42/FIRE0.010080.0099.0080.00PMFabric Filter - HighT15.36Million cu7.6000AP-42/FIREMinnesota Pollution Control AgencyAir Emissions Summary For Year 2008Page 8 of 11Gopher Resource LLC (Facility ID#: 03700016)080.0099.0080.00Fabric Filter - HighT15.36AP-42/FIRE080.0099.0080.00Fabric Filter - LowT15.36AP-42/FIRE0.010080.0099.0080.00PM10Fabric Filter - HighT15.36Million cu7.6000AP-42/FIRE080.0099.0080.00Fabric Filter - HighT15.36AP-42/FIRE080.0099.0080.00Fabric Filter - LowT15.36AP-42/FIRE0.0000.00SO215.36Million cu.6000AP-42/FIRE0.0015.36AP-42/FIRE0.0015.36AP-42/FIRE0.0400VOC15.36Million cu5.5000AP-42/FIRE015.36AP-42/FIRE015.36AP-42/FIRE0.04003040042680.0079.0079.26LeadFabric Filter - HighT37,145.00RefiningTons of meEU 018.0100AP-42/FIRE1Refining Kettle No. 8080.0079.0079.26Fabric Filter - HighT37,145.00AP-42/FIRE080.0079.0079.26Fabric Filter - LowT37,145.00AP-42/FIRE0.110080.0099.0080.00PMFabric Filter - HighT37,145.00Tons of me.0300AP-42/FIRE080.0099.0080.00Fabric Filter - HighT37,145.00AP-42/FIRE080.0099.0080.00Fabric Filter - LowT37,145.00AP-42/FIRE0.660010200603.00CO15.64Natural gasMillion cuEU 01884.0000AP-42/FIRE2Refining Kettle No. 80.0015.64AP-42/FIRE0.0015.64AP-42/FIRE0.7800.00NOx15.64Million cu100.0000AP-42/FIRE0.0015.64AP-42/FIRE0.0015.64AP-42/FIRE0.010080.0099.0080.00PMFabric Filter - HighT15.64Million cu7.6000AP-42/FIRE080.0099.0080.00Fabric Filter - HighT15.64AP-42/FIRE080.0099.0080.00Fabric Filter - LowT15.64AP-42/FIRE0.010080.0099.0080.00PM10Fabric Filter - HighT15.64Million cu7.6000AP-42/FIRE080.0099.0080.00Fabric Filter - HighT15.64AP-42/FIRE080.0099.0080.00Fabric Filter - LowT15.64AP-42/FIRE0.0000.00SO215.64Million cu.6000AP-42/FIRE0.0015.64AP-42/FIRE0.0015.64AP-42/FIRE0.0400VOC15.64Million cu5.5000AP-42/FIRE015.64AP-42/FIRE015.64AP-42/FIRE0.02003040042680.0079.0079.26LeadFabric Filter - HighT19,570.00RefiningTons of meEU 019.0100AP-42/FIRE1Refining Kettle No. 9080.0079.0079.26Fabric Filter - HighT19,570.00AP-42/FIRE080.0079.0079.26Fabric Filter - LowT19,570.00AP-42/FIRE0.060080.0099.0080.00PMFabric Filter - HighT19,570.00Tons of me.0300AP-42/FIREMinnesota Pollution Control AgencyAir Emissions Summary For Year 2008Page 9 of 11Gopher Resource LLC (Facility ID#: 03700016)080.0099.0080.00Fabric Filter - HighT19,570.00AP-42/FIRE080.0099.0080.00Fabric Filter - LowT19,570.00AP-42/FIRE0.350010200603.00CO8.24Natural gasMillion cuEU 01984.0000AP-42/FIRE2Refining Kettle No. 90.008.24AP-42/FIRE0.008.24AP-42/FIRE0.4100.00NOx8.24Million cu100.0000AP-42/FIRE0.008.24AP-42/FIRE0.008.24AP-42/FIRE0.010080.0099.0080.00PMFabric Filter - HighT8.24Million cu7.6000AP-42/FIRE080.0099.0080.00Fabric Filter - HighT8.24AP-42/FIRE080.0099.0080.00Fabric Filter - LowT8.24AP-42/FIRE0.010080.0099.0080.00PM10Fabric Filter - HighT8.24Million cu7.6000AP-42/FIRE080.0099.0080.00Fabric Filter - HighT8.24AP-42/FIRE080.0099.0080.00Fabric Filter - LowT8.24AP-42/FIRE0.0000.00SO28.24Million cu.6000AP-42/FIRE0.008.24AP-42/FIRE0.008.24AP-42/FIRE0.0200VOC8.24Million cu5.5000AP-42/FIRE08.24AP-42/FIRE08.24AP-42/FIRE0.00003040042680.0079.0079.26LeadFabric Filter - HighT.00RefiningTons of meEU 020.0100AP-42/FIRE1Refining Kettle No. 10080.0079.0079.26Fabric Filter - HighT.00AP-42/FIRE080.0079.0079.26Fabric Filter - LowT.00AP-42/FIRE0.000080.0099.0080.00PMFabric Filter - HighT.00Tons of me.0300AP-42/FIRE080.0099.0080.00Fabric Filter - HighT.00AP-42/FIRE080.0099.0080.00Fabric Filter - LowT.00AP-42/FIRE0.000010200603.00CO.00Natural gasMillion cuEU 02084.0000AP-42/FIRE2Refining Kettle No. 100.00.00AP-42/FIRE0.00.00AP-42/FIRE0.0000.00NOx.00Million cu100.0000AP-42/FIRE0.00.00AP-42/FIRE0.00.00AP-42/FIRE0.000080.0099.0080.00PMFabric Filter - HighT.00Million cu7.6000AP-42/FIRE080.0099.0080.00Fabric Filter - HighT.00AP-42/FIRE080.0099.0080.00Fabric Filter - LowT.00AP-42/FIRE0.000080.0099.0080.00PM10Fabric Filter - HighT.00Million cu7.6000AP-42/FIRE080.0099.0080.00Fabric Filter - HighT.00AP-42/FIRE080.0099.0080.00Fabric Filter - LowT.00AP-42/FIRE0.0000.00SO2.00Million cu.6000AP-42/FIREMinnesota Pollution Control AgencyAir Emissions Summary For Year 2008Page 10 of 11Gopher Resource LLC (Facility ID#: 03700016)0.00.00AP-42/FIRE0.00.00AP-42/FIRE0.0000VOC.00Million cu5.5000AP-42/FIRE0.00AP-42/FIRE0.00AP-42/FIRE0.000030400425Lead130,694.00CastingTons of meEU 022.0000Other1Casting0.0000PM130,694.00Tons of me.0000Other0.0000PM10130,694.00Tons of me.0000Other0.650020200102CO10.05Diesel1000 galloEU 023130.0000AP-42/FIRE1Diesel-Powered Electric03.0400NOx10.051000 gallo604.0000AP-42/FIRE0.2100PM10.051000 gallo42.5000AP-42/FIRE0.2100PM1010.051000 gallo42.5000AP-42/FIRE0.0200SO210.051000 gallo.0000Other0.2500VOC10.051000 gallo49.3000AP-42/FIRE0.650020200102CO10.05Diesel1000 galloEU 024130.0000AP-42/FIRE1Diesel-Powered Electric03.0400NOx10.051000 gallo604.0000AP-42/FIRE0.2100PM10.051000 gallo42.5000AP-42/FIRE0.2100PM1010.051000 gallo42.5000AP-42/FIRE0.0200SO210.051000 gallo.0000Other0.2500VOC10.051000 gallo49.3000AP-42/FIRE0.030030400413Lead8,760.00Smelting fugitivesHours of oFS 001.0240Stack test1Furnace Area04.8000PM8,760.00Hours of o4.4000Stack test05.5000PM108,760.00Hours of o5.0000Stack test0.000030400413100.0079.0095.59LeadFabric Filter - LowT788.40Smelting fugitivesHours of oFS 002.0110Stack test1West Reverberatory Fu0100.0079.0095.59Fabric Filter - LowT788.40Stack test0.5000100.0099.0099.99PMFabric Filter - LowT788.40Hours of o4.4000Stack test0100.0099.0099.99Fabric Filter - LowT788.40Stack test0.5000100.0099.0099.99PM10Fabric Filter - LowT788.40Hours of o5.0000Stack test0100.0099.0099.99Fabric Filter - LowT788.40Stack test0.030030400413100.0079.0095.59LeadFabric Filter - LowT1,270.00Smelting fugitivesHours of oFS 003.0110Stack test1East Reverberatory Fur095.591,270.00Stack test0100.0079.0095.59Fabric Filter - LowT1,270.00Stack test04.3000100.0099.0099.99PMFabric Filter - LowT1,270.00Hours of o4.4000Stack test099.991,270.00Stack test0100.0099.0099.99Fabric Filter - LowT1,270.00Stack test05.0000100.0099.0099.99PM10Fabric Filter - LowT1,270.00Hours of o5.0000Stack test099.991,270.00Stack test0100.0099.0099.99Fabric Filter - LowT1,270.00Stack test0.030030400413100.0079.0095.59LeadFabric Filter - LowT7,481.00Smelting fugitivesHours of oFS 004.0110Stack test1Blast FurnaceMinnesota Pollution Control AgencyAir Emissions Summary For Year 2008Page 11 of 11Gopher Resource LLC (Facility ID#: 03700016)095.597,481.00Stack test0100.0079.0095.59Fabric Filter - LowT7,481.00Stack test04.8000100.0099.0099.99PMFabric Filter - LowT7,481.00Hours of o4.4000Stack test099.997,481.00Stack test0100.0099.0099.99Fabric Filter - LowT7,481.00Stack test05.5000100.0099.0099.99PM10Fabric Filter - LowT7,481.00Hours of o5.0000Stack test099.997,481.00Stack test0100.0099.0099.99Fabric Filter - LowT7,481.00Stack test0.030030488801Lead8,760.00Casting fugitivesHours of oFS 005.0110Stack test1Casting04.8000PM8,760.00Hours of o4.4000Stack test5.5000PM108,760.00Hours of o5.0000Stack test11TotalCO360.041NOx91.501Pb.361PM1077.511PM64.891SO21,683.061VOC1.221Billable1,853.64

# Attachment 4

Facility Description & CD-01

FormsMINNESOTA POLLUTION CONTROL AGENCYAIR QUALITY520 LAFAYETTE ROADST. PAUL, MN 55155-4194Show: Active and Pending RecordsAction: PER 003AQD Facility ID: 03700016Facility Name: Gopher Resource LLC5 February, 2010 15:53FACILITY DESCRIPTION: STACK/VENTS (SV)ID No.Discharge DirectionFlow Rate/TemperatureInformation SourceExit GasTemperatureat Top(oF)DesignFlow Rateat Top(ACFM)Width(feet)Diameteror Length(feet)Inside DimensionsHeight ofOpeningFromGround(feet)AddedBy(Action)RetiredBy(Action)OperatorIDfor ItemOperators DescriptionStack/VentStatus1SV 001Up, No CapManufacturer85150003.050.0PER 001Raw Material ProcessingActive2SV 001Up, No CapManufacturer85150003.050.0PER 003Raw Material Processing (CE001)Active3SV 002Up, No CapManufacturer851660008.080.0PER 001Fugitive Emissions from Raw Material Handling, Blast Furnaceand Reverb Furnace AreasActive4SV 002Up, No CapManufacturer851660008.080.0PER 003SIP Source 3 (CE003 and CE002)Active5SV 003Up, No CapManufacturer2001190006.00199.0PER 001Main StackActive6SV 003Up, No CapManufacturer2001190006.00199.0PER 003Main Stack (CE004, CE005) (SIP Source 1)Active7SV 004Up, No CapManufacturer10015001.0081.8PER 001Soda Ash Storage BinActive8SV 005PER 001CastingActive9SV 005PER 003CastingRetired10SV 006Up, No CapManufacturer94615,8001.3318PER 001Diesel Electrical GeneratorActive11SV 006Up, No CapManufacturer94615,8001.3318PER 003Diesel Electrical GeneratorActive12SV 007Up, No CapManufacturer94615,8001.3318PER 001Diesel Electrical GeneratorActive13SV 007Up, No CapManufacturer94615,8001.3318PER 003Diesel Electrical GeneratorActive14SV 008Up, No CapManufacturer80133000780PER 003006Fugitive Emission CollectionActive15SV 009Up, unknown CapNot Provided80015451.6PER 003Refining kettle combustion exhaust 1Active16SV 010Up, unknown CapNot Provided80015451.6PER 003Refining kettle combustion exhaust 2Active17SV 011Up, unknown CapNot Provided80015451.6PER 003Refining kettle combustion exhaust 3Active18SV 012Up, unknown CapNot Provided80015451.6PER 003Refining kettle combustion exhaust 4Active19SV 013Up, unknown CapNot Provided80015451.6PER 003Refining kettle combustion exhaust 5Active20SV 014Up, unknown CapNot Provided80015451.6PER 003Refining kettle combustion exhaust 6Active21SV 015Up, unknown CapNot Provided80015451.6PER 003Refining kettle combustion exhaust 7Active22SV 016Up, unknown CapNot Provided80015451.6PER 003Refining kettle combustion exhaust 8Active23SV 017Up, unknown CapNot Provided80015451.6PER 003Refining kettle combustion exhaust 9Active24SV 018PER 003Future refining kettle combustion 10ActivePage 1 of 1MINNESOTA POLLUTION CONTROL AGENCYAIR QUALITY520 LAFAYETTE ROADST. PAUL, MN 55155-4194Show: Active and Pending RecordsAction: PER 003AQD Facility ID: 03700016Facility Name: Gopher Resource LLC5 February, 2010 15:53FACILITY DESCRIPTION: CONTROL EQUIPMENT (CE)ID No.AddedBy(Action)RetiredBy(Action)OperatorIDfor ItemControlEquip.TypeControl Equipment DescriptionModelControlEquip.StatusManufacturerPollutantsControlledAfterburnerCombustionParametersCaptureEfficiency(%)Destruction/CollectionEfficiency(%)1CE 001EIS 001001Wet Scrubber - High Efficiency w/Lime SlurryF/S-8ActiveTri-Mer Corp.PM10PM10010090902CE 001PER 003912Wet Scrubber-High EfficiencyF/S-8ActiveTri-Mer Corp.PM2.5PM10PM1001001009090903CE 002EIS 001018Fabric Filter - Low Temperature, i.e., T<180 Degrees FTorit Downflow Model4DF320ActiveDonaldson Co., Inc.LeadPM10PM1001001009999994CE 002PER 003018Fabric Filter - Low Temperature, i.e., T<180 Degrees FTorit Downflow Model4DF320ActiveDonaldson Co., Inc.PM2.5LeadLeadPM10PM10010010010010099997999995CE 003PER 001018Fabric Filter - Low Temperature, i.e., T<180 Degrees FTorit Downflow Model4DF160ActiveDonaldson Co., Inc.LeadPM10PM1001001009999996CE 003PER 003018Fabric Filter - Low Temperature, i.e., T<180 Degrees FTorit Downflow Model4DF160ActiveDonaldson Co., Inc.PM2.5LeadLeadPM10PM10010010010010099997999997CE 004PER 001016Fabric Filter - High Temperature, i.e., T>250 Degrees F480ActiveWheelabratorLeadPM10PM100/80100/80100/8099/7999/7999/798CE 004PER 003016Fabric Filter - High Temperature, i.e., T>250 Degrees F480ActiveWheelabratorPM2.5LeadLeadPM10PM10PMPM80100/8080100/8080100/80809999/797999/799999/79999CE 005PER 001016Fabric Filter - High Temperature, i.e., T>250 Degrees F480ActiveWheelabratorLeadPM10PM100/80100/80100/8099/7999/7999/7910CE 005PER 003016Fabric Filter - High Temperature, i.e., T>250 Degrees F480ActiveWheelabratorPM2.5LeadLeadPM10PM10PMPM80100/8080100/8080100/80809999/797999/799999/799911CE 006EIS 001018Fabric Filter - Low Temperature, i.e., T<180 Degrees F330-56ActiveWhirl-Air-FlowPM10PM1001009999Page 1 of 2MINNESOTA POLLUTION CONTROL AGENCYAIR QUALITY520 LAFAYETTE ROADST. PAUL, MN 55155-4194Show: Active and Pending RecordsAction: PER 003AQD Facility ID: 03700016Facility Name: Gopher Resource LLC5 February, 2010 15:53FACILITY DESCRIPTION: CONTROL EQUIPMENT (CE)ID No.AddedBy(Action)RetiredBy(Action)OperatorIDfor ItemControlEquip.TypeControl Equipment DescriptionModelControlEquip.StatusManufacturerPollutantsControlledAfterburnerCombustionParametersCaptureEfficiency(%)Destruction/CollectionEfficiency(%)12CE 006PER 003018Fabric Filter - Low Temperature, i.e., T<180 Degrees F330-56ActiveWhirl-Air-FlowPM2.5PM10PM10010010099999913CE 007PER 001099AfterburnerGopher ResourceActiveGopher ResourceCOTotHydCarb1300100100959514CE 007PER 003099AfterburnerGopher ResourceActiveGopher ResourceCOTotHydCarbVOC130010010010095959515CE 008PER 003018Fabric Filter - Low Temperature, i.e., T<180 Degrees FDFT4-192ActiveDonaldsonPM2.5LeadPM10PM1001001001009979999916CE 009PER 003018Fabric Filter - Low Temperature, i.e., T<180 Degrees FDFT4-192ActiveDonaldsonPM2.5LeadPM10PM1001001001009979999917CE 010PER 003206Dry Sorbent InjectionActiveSO210040Page 2 of 2ST. PAUL, MN 55155-4194Show: Active and Pending RecordsAction: PER 003AQD Facility ID: 03700016Facility Name:MINNESOTA POLLUTION CONTROL AGENCYAIR QUALITY520 LAFAYETTE ROAD5 February, 2010 15:54FACILITY DESCRIPTION: EMISSION UNIT (EU)MaxFuelInput(mil Btu)Gopher Resource LLCRetiredBy(Action)Operator DescriptionID No.EmissionUnitStatusAddedBy(Action)ControlEquip.ID No(s).Stack/VentID No(s).OperatorIDfor ItemInsignificantActivitySICManufacturerModelNumberMax.DesignCapacityMaximumDesignCapacityMaterials Units nUnits d1Raw Material ProcessingOperationEU 001ActivePER 001CE 001SV 001 (M)HrBattery3341Gopher Resources75Ton2Raw Material ProcessingOperationEU 001ActivePER 003CE 001SV 001 (M)HrBattery3341Gopher ResourcesNA75Ton3Raw Material HandlingOperationEU 002ActiveEIS 007CE 002SV 002 (M)HrBattery3341Gopher Resource30Ton4Raw Material HandlingOperationEU 002ActivePER 003CE 008CE 009SV 008 (M)HrBattery3341Gopher ResourceNA75Ton10.05West Reverberatory FurnaceEU 004ActiveEIS 002CE 004CE 005SV 003 (M)HrMetal3341Gopher Resource Corp4.1Ton10.06West Reverberatory FurnaceEU 004ActivePER 003CE 004CE 005SV 003 (M)HrMetal3341Gopher Resource CorpNA4.1Ton10.07Scrap DryerEU 006ActivePER 001CE 004CE 005SV 003 (M)HrScrap3341Gopher Resource Corp30.0Ton10.08Scrap DryerEU 006ActivePER 003CE 005SV 003 (M)HrScrap3341Gopher Resource CorpNA30.0Ton30.09East Reverberatory FurnaceEU 007ActivePER 002CE 004CE 005CE 007SV 003 (M)HrMetal3341Gopher Resource Corp15Ton30.010East Reverberatory FurnaceEU 007ActivePER 003CE 004CE 005CE 007CE 010SV 003 (M)HrMetal3341Gopher Resource CorpNA20Ton14.011Blast FurnaceEU 009ActivePER 002CE 004CE 005CE 007SV 003 (M)HrMetal3341Gopher Resource Corp4.5Ton14.012Blast FurnaceEU 009ActivePER 003CE 004CE 005CE 007CE 010SV 003 (M)HrMetal3341Gopher Resource CorpNA4.5Ton513Refining Kettle No. 1EU 011ActiveEIS 001CE 003CE 004CE 005SV 002 (B)SV 003 (M)Metal3341Gopher Resource Corp100Ton514Refining Kettle No. 1EU 011ActivePER 003CE 004SV 003 (M)SV 009 (M)HrMetal3341Gopher Resource CorpNA100Ton515Refining Kettle No. 2EU 012ActiveEIS 001CE 003CE 004CE 005SV 002 (B)SV 003 (M)Metal3341Gopher Resource Corp100Ton516Refining Kettle No. 2EU 012ActivePER 003CE 004SV 003 (M)SV 010 (M)HrMetal3341Gopher Resource CorpNA100Ton517Refining Kettle No. 3EU 013ActiveEIS 001CE 003CE 004CE 005SV 002 (B)SV 003 (M)Metal3341Gopher Resource Corp100TonPage 1 of 3 (a)5 February, 2010 15:54FACILITY DESCRIPTION: EMISSION UNIT (EU)ID No.ElevatorTypeBottleneckPct.Fuel/SpaceHeatFiring MethodAddedBy(Action)RemovalDateInitialStartupDateCommenceConst.DateEmissionUnitStatus1EU 001PER 00112/31/196112/31/1961Active2EU 001PER 00312/31/196112/31/1961Active3EU 002EIS 00712/31/196112/31/1961Active4EU 002PER 00312/31/196112/31/1961Active5EU 004EIS 00212/31/196112/31/1961Active6EU 004PER 00312/31/196112/31/1961Active7EU 006PER 00112/31/199412/31/1994Active8EU 006PER 00312/31/199412/31/1994Active9EU 007PER 00212/31/196512/31/1965Active10EU 007PER 00312/31/196512/31/1965Active11EU 009PER 00212/31/195512/31/1955Active12EU 009PER 00312/31/195512/31/1955Active13EU 011EIS 00112/31/195512/31/1955Active14EU 011PER 00312/31/195512/31/1955Active15EU 012EIS 00112/31/195512/31/1955Active16EU 012PER 00312/31/195512/31/1955Active17EU 013EIS 00112/31/195512/31/1955ActivePage 1 of 3 (b)ST. PAUL, MN 55155-4194Show: Active and Pending RecordsAction: PER 003AQD Facility ID: 03700016Facility Name:MINNESOTA POLLUTION CONTROL AGENCYAIR QUALITY520 LAFAYETTE ROAD5 February, 2010 15:54FACILITY DESCRIPTION: EMISSION UNIT (EU)MaxFuelInput(mil Btu)Gopher Resource LLCRetiredBy(Action)Operator DescriptionID No.EmissionUnitStatusAddedBy(Action)ControlEquip.ID No(s).Stack/VentID No(s).OperatorIDfor ItemInsignificantActivitySICManufacturerModelNumberMax.DesignCapacityMaximumDesignCapacityMaterials Units nUnits d518Refining Kettle No. 3EU 013ActivePER 003CE 004SV 003 (M)SV 011 (M)HrMetal3341Gopher Resource CorpNA100Ton519Refining Kettle No. 4EU 014ActiveEIS 001CE 003CE 004CE 005SV 002 (B)SV 003 (M)Metal3341Gopher Resource Corp100Ton520Refining Kettle No. 4EU 014ActivePER 003CE 004SV 003 (M)SV 012 (M)HrMetal3341Gopher Resource CorpNA100Ton521Refining Kettle No. 5EU 015ActiveEIS 001CE 003CE 004CE 005SV 002 (B)SV 003 (M)Metal3341Gopher Resource Corp100Ton522Refining Kettle No. 5EU 015ActivePER 003CE 004SV 003 (M)SV 013 (M)HrMetal3341Gopher Resource CorpNA100Ton523Refining Kettle No. 6EU 016ActiveEIS 001CE 003CE 004CE 005SV 002 (B)SV 003 (M)Metal3341Gopher Resource Corp100Ton524Refining Kettle No. 6EU 016ActivePER 003CE 004SV 003 (M)SV 014 (M)HrMetal3341Gopher Resource CorpNA100Ton525Refining Kettle No. 7EU 017ActiveEIS 001CE 003CE 004CE 005SV 002 (B)SV 003 (M)Metal3341Gopher Resource Corp100Ton526Refining Kettle No. 7EU 017ActivePER 003CE 004SV 003 (M)SV 015 (M)HrMetal3341Gopher Resource CorpNA100Ton527Refining Kettle No. 8EU 018ActiveEIS 001CE 003CE 004CE 005SV 002 (B)SV 003 (M)Metal3341Gopher Resource Corp100Ton528Refining Kettle No. 8EU 018ActivePER 003CE 004SV 003 (M)SV 016 (M)HrMetal3341Gopher Resource CorpNA100Ton529Refining Kettle No. 9EU 019ActiveEIS 001CE 003CE 004CE 005SV 002 (B)SV 003 (M)Metal3341Gopher Resource Corp100Ton530Refining Kettle No. 9EU 019ActivePER 003CE 004SV 003 (M)SV 017 (M)HrMetal3341Gopher Resource CorpNA100Ton531Refining Kettle No. 10EU 020ActiveEIS 001CE 003CE 004CE 005SV 002 (B)SV 003 (M)Metal3341Gopher Resource Corp100Ton532Refining Kettle No. 10EU 020ActivePER 003CE 004SV 003 (M)SV 018 (M)HrMetal3341Gopher Resource CorpNA100Ton33Soda Ash Storage BinEU 021ActiveEIS 001CE 006SV 004 (M)Min3341Imperial Calument Ind.60-65-12-721500Ft334CastingEU 022ActiveEIS 002SV 005 (M)HrMetal334125.0Ton35Casting - this is duplicate ofFS005EU 022 RetiredPER 003HrMetal334125.0TonPage 2 of 3 (a)5 February, 2010 15:54FACILITY DESCRIPTION: EMISSION UNIT (EU)ID No.ElevatorTypeBottleneckPct.Fuel/SpaceHeatFiring MethodAddedBy(Action)RemovalDateInitialStartupDateCommenceConst.DateEmissionUnitStatus18EU 013PER 00312/31/195512/31/1955Active19EU 014EIS 00112/31/195512/31/1955Active20EU 014PER 00312/31/195512/31/1955Active21EU 015EIS 00112/31/195512/31/1955Active22EU 015PER 00312/31/195512/31/1955Active23EU 016EIS 00112/31/195512/31/1955Active24EU 016PER 00312/31/195512/31/1955Active25EU 017EIS 00112/31/199412/31/1994Active26EU 017PER 00312/31/199412/31/1994Active27EU 018EIS 00112/31/199412/31/1994Active28EU 018PER 00312/31/199412/31/1994Active29EU 019EIS 001Active30EU 019PER 00302/01/200301/02/2003Active31EU 020EIS 001Active32EU 020PER 003Active33EU 021EIS 00112/31/199212/31/1992Active34EU 022EIS 002Active35EU 022PER 00301/01/2009RetiredPage 2 of 3 (b)ST. PAUL, MN 55155-4194Show: Active and Pending RecordsAction: PER 003AQD Facility ID: 03700016Facility Name:MINNESOTA POLLUTION CONTROL AGENCYAIR QUALITY520 LAFAYETTE ROAD5 February, 2010 15:54FACILITY DESCRIPTION: EMISSION UNIT (EU)MaxFuelInput(mil Btu)Gopher Resource LLCRetiredBy(Action)Operator DescriptionID No.EmissionUnitStatusAddedBy(Action)ControlEquip.ID No(s).Stack/VentID No(s).OperatorIDfor ItemInsignificantActivitySICManufacturerModelNumberMax.DesignCapacityMaximumDesignCapacityMaterials Units nUnits d19.336Diesel-Powered ElectricalGeneratorEU 023ActivePER 001SV 006 (M)Energy3341Caterpillar3516B2000Kw19.337Diesel-Powered ElectricalGeneratorEU 023ActivePER 003SV 006 (M)Energy3341Caterpillar3516B2000Kw19.338Diesel-Powered ElectricalGeneratorEU 024ActivePER 001SV 007 (M)Energy3341Caterpillar3516B2000Kw19.339Diesel-Powered ElectricalGeneratorEU 024ActivePER 003SV 007 (M)Energy3341Caterpillar3516B2000Kw40Thermal Oxidizer (aka CE007)EU 025ActivePER 003SV 003 (M)3341Page 3 of 3 (a)5 February, 2010 15:54FACILITY DESCRIPTION: EMISSION UNIT (EU)ID No.ElevatorTypeBottleneckPct.Fuel/SpaceHeatFiring MethodAddedBy(Action)RemovalDateInitialStartupDateCommenceConst.DateEmissionUnitStatus36EU 023PER 00111/01/200206/01/2002Active37EU 023PER 00311/01/200206/01/2002Active38EU 024PER 00106/01/2002Active39EU 024PER 00311/01/200206/01/2002Active40EU 025PER 003ActivePage 3 of 3 (b)MINNESOTA POLLUTION CONTROL AGENCYAIR QUALITY520 LAFAYETTE ROADST. PAUL, MN 55155-4194Show: Active and Pending RecordsAction: PER 003AQD Facility ID: 03700016Facility Name: Gopher Resource LLC5 February, 2010 15:54FACILITY DESCRIPTION: FUGITIVE SOURCES (FS)ID No.Fugitive Source DescriptionYearInstalledYearRemovedAddedBy(Action)RetiredBy(Action)InsignificantActivityOperatorIDfor ItemPollutant(s)EmittedControlEquip.ID No(s).FugitiveSourceStatus1FS 0011961EIS 002PM10PMLeadFurnace AreaActive2FS 0011961PER 003PM10PMLeadPM2.5CE 002CE 003CE 008Furnace Area Process FugitivesActive3FS 0021961PER 001LeadPMPM10CE 002CE 003West Reverberatory FurnaceActive4FS 0021961PER 003LeadPMPM10PM2.5CE 005West Reverberatory Furnace Process FugitivesActive5FS 0031965PER 001PM10PMLeadCE 002CE 003CE 007East Reverberatory FurnaceActive6FS 0031965PER 003PM10PMLeadPM2.5CE 004CE 005East Reverberatory Furnace Process FugitivesActive7FS 0041955PER 001LeadPMPM10CE 002CE 003CE 007Blast FurnaceActive8FS 0041955PER 003LeadPMPM10PM2.5CE 004Blast Furnace Process FugitivesActive9FS 005PER 001PMLeadPM10CastingActive10FS 005PER 003PMLeadPM10PM2.5CE 002Casting Machine Process FugitivesActive11FS 006PER 001PMLeadPM10Fugitive Dust SourcesActive12FS 006PER 003PMLeadPM10PM2.5CE 002Refining Area Fugitive Dust SourcesActivePage 1 of 1MINNESOTA POLLUTION CONTROL AGENCYAIR QUALITY520 LAFAYETTE ROADST. PAUL, MN 55155-4194Show:Action:AQD Facility ID:Facility Name:Active and Pending RecordsPER 00303700016Gopher Resource LLCFACILITY DESCRIPTION: GROUPS (GP)5 February, 2010 15:53ID No.AddedBy(Action)RetiredBy(Action)Includein EIOperatorIDfor ItemGroup DescriptionGroup ItemsGroupStatus1GP 001PER 001East Reverberatory and Blast Furnace subject to NESHAPs, subp. XCE 004, CE 005, CE 007, EU 007, EU 009, SV 003Active2GP 001PER 003Process Sources under NESHAP Subpart XEU 004, EU 007, EU 009Active3GP 002PER 001Process Fugitive Sources subject to NESHAPs, subp. XCE 002, CE 003, FS 001, FS 002, FS 003, FS 004, FS 005, SV 002Active4GP 002PER 003Process Fugitive Sources under NESHAP Subpart XEU 006, EU 011, EU 012, EU 013, EU 014, EU 015, EU 016, EU 017, EU 018,EU 019, EU 020, FS 001, FS 002, FS 003, FS 004, FS 005, FS 006Active5GP 003PER 001Fugitive Sources subject to SIP ConditionsCE 002, CE 003, FS 002, FS 003, FS 004Active6GP 003PER 003Fugitive Dust Sources under NESHAP Subpart XEU 001, EU 002, FS 006Active7GP 004PER 001Control Equipment for the Process and Fugitive SourcesCE 002, CE 003, CE 004, CE 005Active8GP 004PER 003NESHAP Subpart X Control Equipment Monitoring RequirementsCE 002, CE 003, CE 004, CE 005, CE 008, CE 009Active9GP 005PER 001Emergency Diesel GeneratorsEU 023, EU 024, SV 006, SV 007Active10GP 006PER 003Furnaces Subject to NSPS Subpart LEU 007, EU 009Active11GP 007PER 003Torit StacksSV 002, SV 008Active12GP 008PER 003Torit Filter BanksCE 002, CE 003, CE 008, CE 009ActivePage 1 of 1MINNESOTA POLLUTION CONTROL AGENCYAIR QUALITY520 LAFAYETTE ROADST. PAUL, MN 55155-4194Show: Active and Pending RecordsAction: PER 003AQD Facility ID: 03700016Facility Name: Gopher Resource LLC5 February, 2010 15:54FACILITY DESCRIPTION: CONTINUOUS MONITORS (MR)ParametersMonitoredSerial NumberID No.Model NumberManufacturerOperatorIDfor ItemMonitoredItem(ID No(s).)RetiredBy(Action)AddedBy(Action)Monitor DescriptionMonitorStatus1SO20322323RMR 001SM8100ALear SieglerSV 003PER 003SO2 CEMSActivePage 1 of 1 (a)5 February, 2010 15:54FACILITY DESCRIPTION: CONTINUOUS MONITORS (MR)ID No.AddedBy(Action)SpanValueSystemFullScaleValueBypassCapability?RemovalDateInstallationDateOpticalPathLengthRatioMonitorStatus1MR 001 PER 003ActivePage 1 of 1 (b)MINNESOTA POLLUTION CONTROL AGENCYAIR QUALITY520 LAFAYETTE ROADST. PAUL, MN 55155-4194Show: Active and Pending RecordsAction: PER 003AQD Facility ID: 03700016Facility Name: Gopher Resource LLC5 February, 2010 15:545 February, 2010 15:54FACILITY DESCRIPTION: CONTINUOUS MONITORING SYSTEMS (CM)ID No.AddedBy(Action)RetiredBy(Action)MonitorID No(s).DASID No(s).OperatorIDfor ItemCMS DescriptionParameterMonth/YearInstalledMonth/YearRemovedCert.DateCert.BasisCMSStatus1CM 001PER 003MR 001 SO2 monitoring systemSulfur Dioxide12/12/2005 40CFR75ActivePage 1 of 1MINNESOTA 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 11 May, 2010 12:41 Page 1 of 39

Subject Item: Total Facility

NC/

CA Type Citation Requirement

CD hdr STATE IMPLEMENTATION PLAN (SIP) REQUIREMENTS 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 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 A CTIVITIES 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 A CTIVITIES 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. 7.0MINNESOTA 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 11 May, 2010 12:41 Page 2 of 39

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

A ppendix 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) 11.0MINNESOTA 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 11 May, 2010 12:41 Page 3 of 39

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

A ppendix 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) 15.0MINNESOTA 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 11 May, 2010 12:41 Page 4 of 39

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) 21.0MINNESOTA 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 11 May, 2010 12:41 Page 5 of 39

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 t 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

CD hdr OTHER SOURCE-SPECIFIC REQUIREMENTS 24.0

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. 28.0MINNESOTA 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 11 May, 2010 12:41 Page 6 of 39

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

A TPA 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

A gency 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

CD hdr OPERATIONAL REQUIREMENTS 31.0

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) A ir 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

CD hdr PERFORMANCE TESTING 41.0MINNESOTA 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 11 May, 2010 12:41 Page 7 of 39

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

CD hdr MONITORING REQUIREMENTS 45.0

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

CD hdr RECORDKEEPING 48.0

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

CD hdr REPORTING/SUBMITTALS 52.0

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.

A t 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. 53.0MINNESOTA 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 11 May, 2010 12:41 Page 8 of 39

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.

A t 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 A pplication 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 A pplication 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 Emission Fees: due 60 days after receipt of an MPCA bill. 63.0

CD hdr RECORDKEEPING AND REPORTING REQUIREMENTS FOR 40 CFR 63, Subpart X 64.0MINNESOTA 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 11 May, 2010 12:41 Page 9 of 39

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). 67.0MINNESOTA POLLUTION CONTROL AGENCY
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520 LAFAYETTE ROAD

ST. PAUL, MN 55155-4194 

# COMPLIANCE PLAN 

# CD-01

Facility Name: Gopher Resource LLC

Permit Number: 03700016 - 003 11 May, 2010 12:41 Page 10 of 39

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

CD hdr EMISSION LIMITS 1.0

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

A verage (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

CD hdr THC MONITORING REQUIREMENTS 8.0

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

CD hdr PERFORMANCE TESTING REQUIREMENTS - See Subject Item SV003 14.0MINNESOTA POLLUTION CONTROL AGENCY
AIR QUALITY

520 LAFAYETTE ROAD

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# COMPLIANCE PLAN 

# CD-01

Facility Name: Gopher Resource LLC

Permit Number: 03700016 - 003 11 May, 2010 12:41 Page 11 of 39

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

CD hdr EMISSION AND OPERATING LIMITS 1.0

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 A ll dryer emission vents shall be ventilated to a control device.

(See also Subject Item CE005) 5.0

CD hdr PERFORMANCE TESTING REQUIREMENTS - See Subject Item SV002 6.0MINNESOTA POLLUTION CONTROL AGENCY
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# CD-01

Facility Name: Gopher Resource LLC

Permit Number: 03700016 - 003 11 May, 2010 12:41 Page 12 of 39

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

CD hdr EMISSION AND OPERATING LIMITS 1.0

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 7.0MINNESOTA POLLUTION CONTROL AGENCY
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Facility Name: Gopher Resource LLC

Permit Number: 03700016 - 003 11 May, 2010 12:41 Page 13 of 39

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. 4.0MINNESOTA POLLUTION CONTROL AGENCY
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Permit Number: 03700016 - 003 11 May, 2010 12:41 Page 14 of 39

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

A gency 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. 8.0MINNESOTA POLLUTION CONTROL AGENCY
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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. 10.0MINNESOTA POLLUTION CONTROL AGENCY
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Facility Name: Gopher Resource LLC

Permit Number: 03700016 - 003 11 May, 2010 12:41 Page 16 of 39

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

CD hdr EMISSION LIMITS 1.0

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

CD hdr OTHER LIMITS AND REQUIREMENTS 4.0

CD Minn. R. 7007.0800, subp. 2 Fuel Restriction: Burn diesel fuel only 5.0

LIMIT Minn. R. 7007.0800, subp. 2; EPA Policy Memo dated September 6,

1995 Operating Hours: less than or equal to 500 hours/year using 12-month Rolling Sum 6.0

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. 8.0MINNESOTA POLLUTION CONTROL AGENCY
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Facility Name: Gopher Resource LLC

Permit Number: 03700016 - 003 11 May, 2010 12:41 Page 17 of 39

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

CD hdr EMISSION LIMITS 1.0

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

CD hdr CONTROL REQUIREMENTS - See Subject Items CE004 and CE005 4.0

CD hdr PERFORMANCE TESTING REQUIREMENTS - See Subject Item SV003 5.0MINNESOTA POLLUTION CONTROL AGENCY
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# CD-01

Facility Name: Gopher Resource LLC

Permit Number: 03700016 - 003 11 May, 2010 12:41 Page 18 of 39

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. 2.0MINNESOTA POLLUTION CONTROL AGENCY
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# CD-01

Facility Name: Gopher Resource LLC

Permit Number: 03700016 - 003 11 May, 2010 12:41 Page 19 of 39

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

A ssociated 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. 2.0MINNESOTA POLLUTION CONTROL AGENCY
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Facility Name: Gopher Resource LLC

Permit Number: 03700016 - 003 11 May, 2010 12:41 Page 20 of 39

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

A verage ( 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

LIMIT Minn. R. 7011.0715, subp. 1(B) Opacity: less than or equal to 20 percent opacity 3.0

CD hdr CONTROL REQUIREMENTS - See also Subject Item CE001 4.0

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

CD hdr TESTING REQUIREMENTS 8.0

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. 10.0MINNESOTA POLLUTION CONTROL AGENCY
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Facility Name: Gopher Resource LLC

Permit Number: 03700016 - 003 11 May, 2010 12:41 Page 21 of 39

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 Lead: less than 0.0025 grains/dry standard cubic foot using 3-hour Average 1.0

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 2.0

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

CD hdr PERFORMANCE TESTING REQUIREMENT 4.0

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 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. 7.0MINNESOTA POLLUTION CONTROL AGENCY
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Facility Name: Gopher Resource LLC

Permit Number: 03700016 - 003 11 May, 2010 12:41 Page 22 of 39

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

CD hdr EMISSION LIMITS 2.0

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 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) Opacity: less than or equal to 20 percent opacity 6.0

LIMIT Minn. R. 7009.0020 [Stipulation

A greement] Sulfur Dioxide: less than 530 lbs/hour using 24-hour Block Average 7.0

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

A verage 12.0MINNESOTA POLLUTION CONTROL AGENCY
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CD hdr MONITORING REQUIREMENTS - See also Subject Item MR001 13.0

CD Minn. R. 7009.0020 [Stipulation

A greement] 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

A greement] Sulfur Dioxide Monitoring: Calibrate, operate and maintain continuous emissions monitoring systems (CEMS) which measures sulfur dioxide emissions. 15.0

CD hdr PERFORMANCE TESTING REQUIREMENT 16.0

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 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. 23.0MINNESOTA POLLUTION CONTROL AGENCY
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# CD-01

Facility Name: Gopher Resource LLC

Permit Number: 03700016 - 003 11 May, 2010 12:41 Page 24 of 39

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 Opacity: less than or equal to 5 percent opacity 1.0

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

CD hdr PERFORMANCE TESTING REQUIREMENT (See also GP007) 3.0

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 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. 5.0MINNESOTA 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 11 May, 2010 12:41 Page 25 of 39

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

CD hdr EMISSION LIMITS 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

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

LIMIT Minn. R. 7011.0715, subp. 1(B) Opacity: less than or equal to 20 percent opacity 5.0

CD hdr CONTROL REQUIREMENTS - See also Subject Item CE006 6.0

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. 7.0MINNESOTA 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 11 May, 2010 12:41 Page 26 of 39

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. 9.0MINNESOTA 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 11 May, 2010 12:41 Page 27 of 39

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 A ir 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.

A larm 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

A ppendix K. 10.0MINNESOTA 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 11 May, 2010 12:41 Page 28 of 39

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. 12.0MINNESOTA 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 11 May, 2010 12:41 Page 29 of 39

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 A ir 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.

A larm 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

A ppendix 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. 10.0MINNESOTA 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 11 May, 2010 12:41 Page 30 of 39

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. 11.0MINNESOTA 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 11 May, 2010 12:41 Page 31 of 39

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 A ir 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.

A larm 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 6.0MINNESOTA 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 11 May, 2010 12:41 Page 32 of 39

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

A ppendix 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 A s 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. 17.0MINNESOTA 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 11 May, 2010 12:41 Page 33 of 39

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 A ir 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.

A larm 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. 9.0MINNESOTA 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 11 May, 2010 12:41 Page 34 of 39

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

A ppendix 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 A s 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. 17.0MINNESOTA 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 11 May, 2010 12:41 Page 35 of 39

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. 11.0MINNESOTA 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 11 May, 2010 12:41 Page 36 of 39

Subject Item: CE 007 Afterburner

Associated Items: EU 007 East Reverberatory Furnace

EU 009 Blast Furnace

NC/

CA Type Citation Requirement

CD hdr CE007 MONITORING REQUIREMENTS 1.0

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. 7.0MINNESOTA 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 11 May, 2010 12:41 Page 37 of 39

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. 10.0MINNESOTA 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 11 May, 2010 12:41 Page 38 of 39

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. 10.0MINNESOTA 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 11 May, 2010 12:41 Page 39 of 39

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

### M INNESOTA 

### P OLLUTION 

### C ONTROL 

### A GENCY


### A IR 

### Q UALITY


### 520 L AFAYETTE 

### R OAD


### S T



### . P AUL



### , 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 analysi s please use version 09 292 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 BP IP input and output files with all subsequent modeling analyses. Receptor Grid

o F ollow s 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 dist ances between 10

– 48 km from main

stack

### M INNESOTA 

### P OLLUTION 

### C ONTROL 

### A GENCY


### A IR 

### Q UALITY


### 520 L AFAYETTE 

### R OAD


### S T



### . P AUL



### , 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, SO 2 

# , Rest of T C category

o OK.

Other?

o 1

- hour averaging time for SO 2 

# was not modeled by ENVIRON

. There is

no NAAQS for 1

- hour SO 2 

# (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 SO 2 

# MAAQS of 1,300 μg/m 3



# . ( https://www.revisor.mn.gov/rules/?id=7009.0080 ) 1

- hour SO 2 

# 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 SO 2 

# by ENVIRON was based on the NAAQS of 80 μg/m 3 

# . There is an annual SO 2 

# MAAQS of 60 μg/m 3



# , which is more restrictive then the NAAQS.
Modeled Impacts Results

Air Dispersion Modeling Results for Gopher Resources Corp.’s

– SO 2 

### NAAQS/MAAQS

Pollutant Averaging

Time Modeled

Impacts (μg/m 3 

### ) Background

Value (μg/m 3 

### ) Total

Predicted Impacts (μg/m 3 

### ) NAAQS

(MAAQS) (μg/m 3 

### ) % of

Standard MPCA

Modeling Language

Tier

SO 2 

### * 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 SO 2 

### based on 3

- hour and 24

- hour modeling parameters.

### M INNESOTA 

### P OLLUTION 

### C ONTROL 

### A GENCY


### A IR 

### Q UALITY


### 520 L AFAYETTE 

### R OAD


### S T



### . P AUL



### , MN 55155

- 4194 

# AIR DISPERSION MODELING

ANALYSIS COMMENTS

CRITERIA POLLUTANTS



# Permit Conditions from Modeling

o Permit language from modeling for Tier 4 for SO 2 

# Source Emissions Rates and Modeling Parameters

Air Dispersion Modeling Parameters for Gopher Resources Corp. (All Averaging Times)

SRCID SO 2



### 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

### M INNESOTA 

### P OLLUTION 

### C ONTROL 

### A GENCY


### A IR 

### Q UALITY


### 520 L AFAYETTE 

### R OAD


### S T



### . P AUL



### , MN 55155

- 4194 

# AIR DISPERSION MODELING

ANALYSIS COMMENTS

CRITERIA POLLUTANTS

# Summary of GRC SO 2 

# Modeling

AERMOD was used to model SO 2 

# concentrations downwind of the Gopher Resources Corporation (GRC) facility in Eagan, MN. Two onsite SO 2 

# 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 f our 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 a nd temperature for point sources

• Emissions rate (g/s) (as detailed above)

On-site building heights and locations were also provided as i nput to the model.

A very large receptor grid covering 48km in each direction from GRC’s main stack (96km x 96km area) was used, w ith 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 fro m 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 fac ility property line, with 25m spacing.

‘Option 1’ SO 2 

# 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 annua l concentrations. This sum was then compared to the SO 2 

# NAAQS. The air dispersion modeling results (pleas e see the attached “Gopher SO2 modeling - Summary.xls” spreadsheet) indicate that all SO 2 

# NAAQS are being attained under this
scenario, with the 24-hr NAAQS being the limiting factor: 343 μ g/m 3 

# (simulated) + 21

μ g/m 3 

# (background) = 364 μ g/m 3 

# , just below the NAAQS of 365 μ g/m 3



# .

Thus, the facility air permit limit for SO2 emi ssions from the main stack could be raised as high as 2,080 lb/hr on an emission averagi ng period of at least 3 hours with resulting modeled impacts near the f acility 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 Minneapol is/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 la nd 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 Guide 1 

# , 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 regi on 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 upwi nd distance of 1 km. Twelve 30-degree landuse sectors were set up around the facility.

Based on “ABZoINFO1.XLS” from the MPCA we bsite, the surface parameters (surface roughness, albedo, and Bowen ratio) of winter with continuous snow were applied for January and February, the spring values for Ap ril, 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 determin ed to be dry based on the values used in

“MS450930.ZIP” from the MPCA website.

For each year, surface and upper air data f iles 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



## VJA EMAIL AND U.S. MAIL March 19,2010

Toni Volkmeier

Air**QualityP~rmits** 

## Section, 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 Qual ters '

Executive Director

-Scott Strand I,



## , DearMf? V olkmeier:

, '

# 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~ce** of Air. 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 of its 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~ion that could

# be,~mitted from Gopher

# ~esource

without violating its permit tenus, ai:J.d that it.

## as~umes operation of the 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 of this 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 of the 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. 

## [USEP A

\ 

## . ", 

## 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 per year.

MCEAurges MPCA to amend tIns permit accordingly, and enforce a total facility PTE of no

,



## more than one ton oflead per year.

, , 

## MCEA believes that the recent modification of the 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 to make 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

, ' 

## permit for 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 of the NAAQS for lead, MCEA is concerned with the "riskfor significant impacts on public health and environment-when huge amounts of this**neuroto~iri**

, '



## are

# c~nsistently released to ambient air in the

# h~art of the most

# popul~us region of Minnesota. '

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 of cognitive 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 

# a risk 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 200 I}

# 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**h~ards.**

. .'.**~.** i . 

## 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 of lead.

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~idential areas,-

# ci~ quality ·and

# le~d ievels should be 'closely monitored for the ,duration ofthe

, operation of this facility. MCEA ,isks that the MPCA, perhaps in partnership with the Minnesot;:t

• I'. • I 

## Department of Health and theD.S. Environmental Protection Agency, increase air quality"

. ' 'r

. -

. ' .



## . ;.

. ·monitoring at several stations downwind of the 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 of these comments. Please feel free to contact us for

further- discussion.

, 

# , 3

### Sin~'erely,



## _ Samuel Yamin, MPH

Public Health Scientist

# ,//~~**~/,~~** Matthew Norton, MFS, Esq.

Staff Attorney

., 

## .

, 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 of Medicine, 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, 2 nd 

## Edition. American Academy of Pediatrics, 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 Ni gg 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 <1 

# b Ilg/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~d** 

## children in Mexico City. Pediatrics. 

## 118(2): e323-30. August 2006.

, , 

## USEPA 20Cl8 United States, Environp.1ental Protection Agency" Office of Air 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 of Air Quality Planning

and Standards. ,FactShee{;' Final Revisions to the National.(1mbierd Air Quality Standards for


# Lead. December 30,2009. Accessed on-line athttp://epa.gov/air/lead/actions.html. '.

tJSEP A 2010 United' States Environmental Protection Agency.

# G~een B;ok

J ' 

## 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

--+--"-J une /



### 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


## t

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. =OOOq,',):;,>' ',<C;

# ~;: .. 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 of this 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 of the 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 of this permit, both of which are anticipated to result in lowering the potential to emit (PTE) of the facility through more restrictive limits. One of these is the U.S.

Environmental Protection Agency's (EPA) review of the 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 of the 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 of the area around Gopher

Resource LLC, with respect to the newer lead NAAQS. If that 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 of the 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, if that 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 of the 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 of this permit. Lead is currently

monitored at a point to the southeast of the 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, if the area is designated as nonattainment, additional monitoring

mayor may not be a requirement of the 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 of the 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'~** 

# ....