STATE OF DELAWARE 

DEPARTMENT OF NATURAL RESOURCES 


AND ENVIRONMENTAL CONTROL 


OFFICE OF T H E 	 89 K I NGS HIGHWAY P HONE : (302) 739-9000 

FAX: ( 302 ) 739-6242 SECRETARY 	 DOVER, DELAWARE 19901 

June 10, 20 10 

Mr. Shawn M. Garvin (3RAOO) 


Regional Administrator 


U.S . EPA Region III 


1650 Arch Street 


Philadelphia, PA 19103 


Dear Mr. Garvin: 

On June 15,2009, the Department of Natural Resources and Environmental Control 

(DNREC) submitted to EPA for approval a revision to the Delaware State Implementation Plan 

(SIP). The revision consisted of administrative and non-substantive changes to 36 Delaware air 

quality regulations which EPA previously approved and incorporated into the Delaware SIP. 

We have subsequently determined that the June 2009 SIP revision inadvertently included 

some sections which are not part of the Delaware SIP. Accordingly, we are requesting that those 

sections be withdrawn from the .June 15, 2009 SIP revision submittal, namely: 

• 	 Regu lation 1101 Definitions and Administrative Principles, Section 2.0 Definitions, 

specifically the terms listed in the enclosure to this letter. 

• 	 Regulation 1103, Ambient Air Quality Standards, Section 7.0 Hydrocarbons, and Section 

9.0 Hydrogen Sulfide. 

• 	 Regulation 1107 Particulate Emissions from Incineration, Section 2.0 Restrictions. 

• 	 Regulation 1109 Emissions of Sulfur Compounds from Industrial Operations, Section 2.0 

Restrictions on Sulfuri c Manufacturing Operations, paragraph 2.2 Contro l of sulfuri c acid 

mi st. 

• 	 Regulation 1146 Electric Generating Unit (EGU) Multi-Pollutant Regul ation, those portions of 
M r. Sha \VB M. Garvin 

June 10,20 10 

Page 2 

• 	 Sections 1.0, 2.0,3.0, 7.0, 8.0 9.0 which govern control of mercury emissions, and of all of 

Section 6.0, and Table 6-1. 

If you or your staff have any question regarding this request, please do not hesitate to 

contact Ali Mirzakhalili, Program Administrator ofDNREC's Air Quality Management Section 

at 302-739-9402. 

CC: 	 Ali Mirzakhalili 

David Arnold 

Enclosure 
Enclosure 

Terms in Delaware Regulation 1101 Definitions and Administrative Principles, Section 2.0 

Definitions for Which Delaware is Not Requesting SIP Approval 

"Active section of disposal site" 


"Adequately wetted" 


"Alternative method" 


"Asbestos" 


"Asbestos containing waste material" 


"Asbestos material" 


"Asbestos mill" 


"Asbestos tailings" 


"Asphalt concrete plant" 


"Beryllium" 


"Beryllium alloy" 


"Beryllium containing waste" 


"Beryllium ore" 


"Capital expenditure" 


"Ceramic plant" 


"Coal refuse" 


"Commercial asbestos" 


"Compliance schedule" 


"Condenser stack gases" 


"Control device asbestos waste" 


"Custody transfer" 


"Day" 

"Demolition": 

"Denuder" 

"Drilling anc! production facility" 

"Enlcrgency renovation": 

"End box" 

"End box ventilation systcm" 


"Equivalcnt method" 


"Etiologic agents" 


"Existing installation, equipment, source or operation" (As this definition applies to 7 DE 


Admin. Code 1120, New Sourcc Performance Standards) 


"Extraction plant". 


"Fabricating" 
"Floating roof' 

"Fossil fuel" 

'''Foundry'' 

"Friable asbestos material" 


"Hourly period": See "One hour period". 


"Inactive section of disposal site" 


"Infectious waste" 


"Isokinetic sampling" 


"Large incinerator" 


"Machine shop" 


"Malfunction" 


"Manufacturing" 


"Mercury" 

"Mercury chlor-alkali cell" 


"Mercury chi or-alkali electrolyzer" 


"Mercury ore" 


"Mercury ore processing facility" 


"Monitoring device" 


"Nitric acid production unit" 


"Noninfectious" 


"Odor" 

"One hour period" 


"Paint application transfer efficiency" 


"Particulate asbestos material". 


"Planned renovation": 


"Proportional sampling" 


"Reference method" 


"Rernoving" 

"Renovation" 

"Roadways" 

"Run" 

"Sludge" 


"Sludge dryer" 


"Small incinerator" 


"Solid waste" 


"Standard" 


"Stationary vessel" 


"Stripping" 


"Waste oil" 


"Weak nitric acid"