Domenico Mastrangelo January 14, 2010 

 Completeness Checklist 

June 18, 2009 SIP Submittal for the State of Colorado SIP to Meet Requirements of CAA Section 

110(a)(2)(D)(i)(I) - Interstate Transport Regarding 1997 8-hour Ozone NAAQS 

40 CFR 51 APPENDIX V CRITERIA SUBMITTAL ITEM

2.1 Administrative Materials 

(a) A formal letter of submittal from the Governor or his 

designee, requesting EPA approval of the plan or revision 

thereof (hereafter "the plan"). 

Letter dated June 18, 2009 

(b) Evidence that the State has adopted the plan in the State 

code or body of regulations; or issued the permit, order, 

consent agreement (hereafter "document") in final form. That 

evidence shall include the date of adoption or final issuance as 

well as the effective date of the plan, if different from the 

adoption/issuance date. 

Notice of Final Adoption, December 30, 2008; Effective 

January 30, 2009. Colorado Air Quality Control 

Commission, “Interstate Air Pollutant Transport State 

Implementation Plan.” 

(c) Evidence that the State has the necessary legal authority 

under State law to adopt and implement the plan. 

Statutory Authority; C.R.S. sections 25-7-105 through 

25-7-110, 25-7-114, 25-7-119, 25-7-132. 

(d) A copy of the actual regulation, or document submitted for 

approval and incorporation by reference into the plan, 

including indication of the changes made to the existing 

approved plan, where applicable. The submittal shall be a 

copy of the official State regulation/document, signed, 

stamped, and dated by the appropriate State official indicating 

that it is fully enforceable by the State. The effective date of 

the regulation/document shall, whenever possible, be indicated 

in the document itself. 

State of Colorado Implementation Plan to Meet the 

Requirements of Clean Air Act Section 

110(a)(2)(D)(i)(I). Interstate Transport Regarding the 

1997 8-Hour Ozone Standard. Dated December 9, 2008, 

Effective January 30, 2009. 

(e) Evidence that the State followed all of the procedural 

requirements of the State's laws and constitution in conducting 

and completing the adoption/issuance of the plan. 

Submitted to Colorado Air Quality Control Commission 

(AQCC) for approval Agenda Item Control Sheet as: 

“Ozone Reporting and Permitting Elements.” Notice of 

Final Adoption dated December 30, 2008, Douglas 

Lempke, Admin. AQCC. 

(f) Evidence that public notice was given of the proposed 

change consistent with procedures approved by EPA, 

including the date of publication of such notice. 

Copy of November 21, 2008 Publisher’s Affidavit 

(Denver Newspaper Agency), and copy of the published 

text announcing the December 11 & 12 public hearings 

for the Ozone SIP, which included the Interstate 

Transport SIP revision satisfying the requirements of 

Clean Air Act Section 110(a)(2)(D)(i)(I) for the 1997 

Ozone standard. Note: The AQCC denied a “Motion to 

bifurcate Interstate Transport SIP Revision,” filed by the 

Colorado Air Pollution Control Division, from the 

Ozone SIP. 

(g) Certification that public hearings(s) were held in 

accordance with the information provided in the public notice 

and the State's laws and constitution, if applicable. 

Air Quality Control Commission Notice of Meeting and 

Agenda for December 11-13 & 19, 2008. 

(h) Compilation of public comments and the State's response 

thereto. 

None 
2.2 Technical Support 

(a) Identification of all regulated pollutants affected by the 

plan. 

Yes 

(b) Identification of the locations of affected sources 

including the EPA attainment/nonattainment designation of 

the locations and the status of the attainment plan for the 

affected areas(s). 

Yes, as applicable. 

The Denver Metropolitan Area/North Front Range has 

been designated nonattainment for the 1997 8-hour 

ozone standard, effective November 20, 2007. The State 

of Colorado submitted an attainment plan for 8-hour 

ozone in June 2009. Colorado is in attainment for the 

1997 and 2006 24-hour PM2.5 standards. 

(c) Quantification of the changes in plan allowable emissions 

from the affected sources; estimates of changes in current 

actual emission from affected sources or, where appropriate, 

quantification of changes in actual emission from affected 

sources through calculations of the differences between certain 

baseline levels and allowable emissions anticipated as a result 

of the revision. 

NA 

(d) The State's demonstration that the national ambient air 

quality standards, prevention of significant deterioration 

increments, reasonable further progress demonstration, and 

visibility, as applicable, are protected if the plan is approved 

and implemented. 

NA 

(e) Modeling information required to support the proposed 

revision, including input data, output data, models used, 

justification of model selections, ambient monitoring data 

used, meteorological data used, justification for use of offsite 

data (where used), modes of models used, assumptions, and 

other information relevant to the determination of adequacy of 

the modeling analysis. 

NA. See the August 15, 2006 EPA guidance 

memorandum: "Guidance for State Implementation Plan 

(SIP) Submissions to Meet Current Outstanding 

Obligations Under Section 110(a)(2)(D)(i) for the 8-

Hour Ozone and PM2.5 National Ambient Air Quality 

Standards. 

(f) Evidence, where necessary, that emission limitations are 

based on continuous emission reduction technology. 

NA 

(g) Evidence that the plan contains emission limitations, work 

practice standards and record keeping/reporting requirements, 

where necessary, to ensure emission levels. 

NA 

(h) Compliance/enforcement strategies, including how 

compliance will be determined in practice. 

NA 

(i) Special economic and technological justifications required 

by any applicable EPA policies. 

NA