# Pennsylvania

DEPARTMENT OF ENVIRONMENTAL PROTECTION

SECRETARY September 9, 2015

Mr. Shawn M. Garvin Regional Administrator U.S. Environmental Protection Agency, Region III 1650 Arch Street (Mail Code: 3RA00) Philadelphia, PA 19103-2029

Dear Mr. Garvm: 

### Enclosed for your approval is a revision to Pennsylvania's State Implementation Plan (SIP) pertaining to an amendment to the Allegheny County Health Department (ACHD) Rules and Regulations, Article XXI, Air Pollution Control, relating to the revision by ACHD ofan existing regulation for fiberglass boat manufacturing materials. The revised regulation is contained in the ACHD Rules and Regulations, Article XXI, Air Pollution Control, Section 2105.86, "Control of VOC Emissions from Fiberglass Boat Manufacturing Materials." The regulation was revised to include the previously omitted Table 2105.86, labeled, "Monomer VOC Content Limitations for Open Molding Resin and Gel Coat Operations." This SIP revision is identified as a supplement to revision 74 for ACHD's internal tracking. On November 15, 2013, DEP submitted to EPA for approval a SIP revision for the ACHD Fiberglass BoatManufacturing Materials regulation and three other ACHD regulations implementing Control Techniques Guidelines (CTGs). Upon review ofthe SIP revision, EPA 

### found that Table 2105.86 was missing from the Fiberglass Boat Manufacturing Materials regulation. To address the situation, EPA offered a "conditional approval" ofthe SIP revision, if ACHD committed to amending and DEP committed to submitting to EPA a revised 

### Section 2105.86 within one year ofthe publication ofthe conditional approval in the Federal Register. After consideration, DEP requested in a letter (dated July 16, 2014) to EPA, the 

### conditional approval ofACHD SIP revision 74. EPA published the conditional approval ofthe SIPrevision in the Federal Register on November 26, 2014 (79 FR 70470). This supplemental SIP revision satisfies the obligationto submit an amended Section 2105.86 to include the previously omitted Table 2105.86. The ACHD is a local health agency organized under Local Health Administration Law, Act 315 

### ofAugust 24, 1951, P.L. 1304, as amended, whose powers and duties include the enforcement of 

### laws relating to public health within Allegheny County. The ACHD has an air pollution control program that has been approved by DEP in accordance with Section 12 ofthe Air Pollution Control Act.

Rachel Carson State Office Building | P.O. Box 2053 | Harrisburg, PA 17105-2063 717.787.2814 ^ www.depweb.state.pa.us Printed on Recycled Paper P

### Mr. ShawnM. Garviti -2- September 9, 2015
The SIPsubmittal includesone hard copy and a compactdiscconsisting of the SIPsubmittal documents and documentation of the public participationprocess. I certify that the electronic files are exact duplicates ofthe hard copies. 

### The Commonwealth followed all ofthe procedural requirements ofthe State's laws and constitution in conducting and completing the adoption/issuance ofthe SIP revision. 

### Thank you for your attention to this matter. Should you have any questions concerning this SIP revision, please contact Joyce E. Epps, DirectorofAir Quality, by e-mail atjeepps@pa.gov or 

### bytelephone at717.787.9702. You may also contactMs. JaymeGraham, Manager, Air Quality Program, ACHD by e-mail atjgraham@achd.net or by telephone at412.578.8103. Sincerely,

Johh Quigley Secretary

Enclosure

cc: Diana Esher, EPA Region III Jayme Graham, ACHD Jim Kelly, ACHD