### UNITED STATES ENVIRONMENTAL PROTECTION AGENCY REGION 7

REVISED TSD 6/8/16 MEMORANDUM 11201 Renner Boulevard Lenexa, Kansas 66219



### SUBJECT: Technical Support Document (TSD) for Polk CountyBoard ofHealth Rule and Regulations, Air Pollution, ChapterV, 2015 Revisions to the Iowa State Implementation Plan (SIP) FROM:

TO: THRU: Heather Hamilto~ Iowa State Coordinator 

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### AWMD/APDB/CPPS**~** 

### IA-172, EPA-R07-0AR-2016-0045 AmyAlgoe-Eakin Section Chief AWMD/APDB/AtPS Mike Jay Branch Chief AWMD/APDB

ANALYSIS OF SIPREVISION The State ofIowa has requested EPA approval ofrevisions to the local agency's rules and regulations, "AirPollution," Chapter V as arevision to the SIP. In order for the local program's rules to be incorporated into the Federally-enforceable SIP, onbehalfofthe local agency, the state must submit the formally adopted regulations and control strategies, which are consistent with the state and Federal requirements, to EPA for inclusion in the SIP. The regulation adoption process generally includes public notice, a public comment period and a public hearing, and formal adoption ofthe rule bythe state authorized rulemakingbody. In this case, that rulemakingbodyis the local agency. Afterthe local agency formally adopts the rule, the local agency submits the rulemaking to the state, and then the state submits the rulemaking to EPA for consideration for formal action (inclusion ofthe rulemaking into the SIP). EPA must provide public notice and seek additional public comment regarding the proposed Federal action onthe state's submission. OnNovember 25, 2015, the Iowa Department ofNatural Resources (IDNR) requested to amend the SIP to include updates to the Polk County Board ofHealth Rules and Regulations. The notice ofpublic hearing for the Polk Countyrevisions was published in The DesMoines Register 

### on September4, and September 21, 2015. No written or oral comments were received during the comment period that extended from September 1, through October 6, 2015. Revisions to the Polk County Board ofHealth

Printed on RecycledPaperRules and Regulations were adopted bythe Polk CountyBoard ofSupervisors on October 6, 2015, following the public hearing and publicboard meetings. The effective date oftherevisions is October 12, 2015. 

### REVISIONS FORAPPROVAL All revisions are consistent with the federally-approved Iowa SIP and are as follows (revisions distinguished by strikeouts/underline font): 

### Article I. In General, Section 5-1. PURPOSE AND AMBIENT AIR QUALITY STANDARDS. The following section was updated in its entiretyto revise the "amended through" date consistent with the federally-approved Iowa SIP: (c) All references to 567 IAC Chapter 20 are amended through March 18, 2015. All references to 567 IAC Chapter 21 are amended through September 10, 2008. All references to 567 IAC Chapter 22 are amended through March 18, 2015. All references to 567 IAC Chapter 23 are amended through March 18, 2015. All References to 567 IAC Chapter

### 24 flfe amended through October 20, 2010. All references to 567 IAC Chapter 25 are amended through March 18, 2015. All references to 567 IAC Chapter26 are amended through November 16, 2008. All references to 567 IAC Chapter 28 are amended through September 18, 2013. All references to 567 IAC Chapter 29 are amended through April 8, 1998. All references to 567 IAC Chapter 33 are amended through March 18, 2015. All references to 567 IAC Chapter 34 are amended through October7, 2009. 

### NOTE: The reference to 567 IAC Chapter 24 is removed from this TSD as requested by 

### the state in 

### an e-mail dated April 14, 2016. Article I. 

### In General, Section 5-2. Definitions. NOTE: Definitions do notrelate to emission limitations. The following definition was added and is consistent with the federally-approved Title V program: "Responsibleofficial" means one ofthe following: 1. For a corporation: a president, secretary, treasurer, or vice-president of the corporation in charge of a principal business function, or any other person who performs similar policy or decisionmaking functions for the corporation, or a duly authorized representative ofsuchpersonifthe representative is responsible for the overall operation ofone or more manufacturing, production, or operating facilities applying for or subject to a permit and either: The facilities employ more than 250 persons or have gross annual sales or expenditures exceeding $25 million (in second quarter 1980 dollars); orthe delegation ofauthority to such representative is approved in advancebythe local program. 2. For a partnership or soleproprietorship: a general partnerortheproprietor, respectively;

23. For a municipality, state, federal, or other public agency: either a principal executive officer or ranking elected official. For the purposes ofthis chapter, a principal executive officer ofa federal agencyincludesthe chiefexecutiveofficerhavingresponsibilityfor theoverall operations ofaprincipal geographicunit ofthe agency (e.g., a regional administrator ofEPA); or 4. Title IV affected sources: Thedesignatedrepresentativeinsofaras actions, standards, requirements, or prohibitionsunderTitle IV ofthe Act orthe regulations promulgated thereunder are concerned; and the designated representative for any otherpurposes underthis chapter. The following definition was revised and is consistent with the federally-approved Iowa SIP: Volatile Organic Compounds" means VOC as found in40 CFR Part 51.lOO(s) as amended through March 27, 2014, as adopted byreference in 567 IAC 20.2. 

### Article X. Permits, Division 1. Construction permits, Section 5-33. 5-33. Exemptions from Construction Permit Requirements. NOTE: Provisions are permit exemptions and do not relate to emission limitations. The following introductoryparagraph has been added to this section to clarify and strengthen the language ofthe permitting exemptions. The permitting exemptions in this section do not relieve the owner or operator ofany source from any obligationto complywith any other applicable requirements. Exemptions were revised as follows (underlined): (51) Electric hand soldering, wave soldering, and electric solder paste reflow ovens-:- shall be limited to 37,000 pounds or less per year oflead-containing solder. Records shall bemaintained on site by the owner or operator for at least two calendar years to demonstrate that use oflead-containing solder is less than the exemption thresholds. Consistent with the federally-approved Iowa SIP 567-22.1. (56) Emissions from mobile over-the-road trucks, and mobile agricultural and construction internal combustion engines that are operated only for repair ormaintenance purposes at equipment repair shops or equipment dealerships, and only when the repair shops or equipment dealerships are not major sources as defined in this Chapter. Consistent with the federally-approved Iowa SIP 567-22.1. The following are additions to the list ofsmall units exempted from construction permitting: (58) Equipment that is not related to the production of goods or services and used exclusively for academicpurposes, located at educational institutions (as defined in Iowa Code section 4558.161). The equipment covered under this exemption is limited to: lab hoods, art class equipment, wood shop equipment in classrooms, wood fired pottery kilns, and fuel-burning units with a capacity ofless than onemillion Btuperhour fuel capacity. This exemption does not applyto incinerators. Consistentwith the federally-approved Iowa SIP 567-22.1.

3(59) Any container, storage tank, or vessel that contains a fluid having a maximum true vapor pressure ofless than 0.75 psia. "Maximum true vaporpressure" means the equilibriumpartial pressure of the material considering: For material stored at ambient temperature, the maximum monthly average temperature as reported bythe National Weather Service, or for material stored above or below the ambient temperature, the temperature equal to thehighest calendar-month average ofthe material storage temperature: Consistent with the federally-approved Iowa SIP 567-22.1. (60) Fugitivedust emissions related to movement ofpassengervehicles onunpavedroad surfaces, provided that the emissions arenot counted for applicabilitypurposes and that anyfugitive dust control plan orits equivalent is submitted as required bythe Health Officer. Consistent with the federallyapproved Iowa SIP 567-22.1. 

### Article X. Permits, Division 2. Operating Permits, Section 5-39. 5-39. Exemptions from Annual Operating Permit Requirement. NOTE: Provisions are permit exemptions and do not relate to emission limitations. The following introductory paragraph has been added to this section to clarify and strengthen the language ofthe annual operating permit exemptions. The permitting exemptions in this section do not relieve the owner or operator ofany source from any obligationto complywith any other applicablerequirements. Exemptions were revised as follows (underlined): (44) Electric hand soldering, wave soldering, and electric solderpastereflow ovens shall be limited to 37,000 pounds or less per year oflead-containing solder. Records shall be maintained on site bythe owner or operator for at least two calendar years to demonstrate thatuse oflead-containing solder is less than the exemption thresholds. See comment at 5-33 (51). (49) Emissions from mobile over-the-road trucks, and mobile agricultural and construction internal combustion engines that are operated onlyfor repair ormaintenance purposes at equipment repair shops orequipment dealerships, and onlywhen the repair shops or equipment dealerships are not major sources as defined in this Chapter. See comment at 5-33 (56). The following are additions to the list ofsmall units exempted from operating permits: (53) Equipment that is not related to the production of goods or services and used exclusively for academic purposes, located at educational institutions (as defined in Iowa Code section 4558.161). The equipment covered under this exemption is limited to: lab hoods, art class equipment, wood shop equipment in classrooms, wood fired pottery kilns, and fuel-burning units with a capacity ofless than onemillion Btuperhour fuel capacity. This exemption does not applyto incinerators. See comment at 5-33 (58).

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### (54) Any container, storage tank, or vessel that contains a fluid having a maximum true vapor pressure ofless than 0.75 psia. "Maximumtrue vaporpressure" means the equilibrium partial pressure of the material considering: For material stored at ambient temperature, the maximum monthly average temperature as reported bythe National Weather Service, or for material stored above or below the ambient temperature, the temperature equal to the highest calendar-month average ofthe material storage temperature. See comment at 5-33 (59). (55) Fugitive dust emissions related to movement ofpassengervehicles onunpavedroad surfaces, provided that the emissions are not counted for applicabilitypurposes and that any fugitive dust control plan orits equivalent is submitted as required bythe Health Officer. See comment at 5-33 (60). The definition for Maximum Achievable Control Technology (MACT) definition was included in the September 2013 SIP submission for Polk County; however, EPA inadvertently omitted the definition from the Federal Register notice. 80 FR 1471. The definition ofMACT is consistent with the federally-approved Iowa SIP 567-20.2, and is being approved with this action: Maximum Achievable Control Technology (MACT) means the following regardingregulated hazardous airpollutant sources: 1. For existing sources, the emissions limitation reflecting the maximum degree ofreduction in emissions that the administrator orthe department, taking into consideration the cost ofachieving such emission reduction, and any non-air quality health and environmental impacts and energy requirements, determines is achievable by sources in the category ofstationary sources, that shall notbe less stringent than the MACT floor. 2. For new sources, the emission limitation which is not less stringent than the emission limitation achieved in practice bythebest-controlled similar source and which reflects the maximum degree of reduction in emissions that the administrator orthe department, taking into consideration the cost of achieving such emission reduction, and any non-air quality health and environmental impacts and energy requirements, determines is achievablebythe affected source. As specifically identified in theNovember 25, 2015, submission from IDNR, EPA is requested not to act onthe following:

• Article VI. Emission ofAir Contaminants from Industrial Processes, New Source Performance Standards, Section 5-16(n), • Article VIII. National Emission Standards for Hazardous Air Pollutants for Source Categories, Section 5-16(p), and, • Article VIII. National Emission Standards for Hazardous Air Pollutants for Source Categories, Section 5-20. Record ofRulemaking Iowa Department ofNatural Resources Notice ofPublic Hearing September4 and September 21, 2015 Adopted byBoard October 6, 2015 Effective date ofRevisions October 12, 2015 Rule package received by EPA December 8, 2015 Completeness determined December 22, 2015 5