N.M. Code R. § 20.11.3.123 Procedures For Determining Localized Co, Pm10 and Pm2.5 Concentrations (Hot-Spot Analysis)

• Library: New Mexico Administrative Code
• Edition: 2023
• Currency: Current through Register Vol. 34, No. 24, December 19, 2023
• Citation: N.M. Code R. § 20.11.3.123
• Year: 2023

A. CO hot spot analysis:

(1) The demonstrations required by 20.11.3.116 NMAC (Criteria and Procedures: Localized CO PM10 and PM2.5 Violations) shall be based on quantitative analysis using the applicable air quality models, data bases and other requirements specified in 40 CFR Part 51, Appendix W (guideline on air quality models). These procedures shall be used in the following cases unless different procedures developed through the interagency consultation process required in 20.11.3.105 NMAC and approved by the EPA regional administrator are used for: (a) projects in or affecting locations, areas or categories of sites which are identified in the applicable implementation plan as sites of violation or possible violation; (b) projects affecting intersections that are at level-of-service D, E or F, or those that shall change to level-of-service D, E or F because of increased traffic volumes related to the project; (c) any project affecting one or more of the top three intersections in the nonattainment or maintenance area with highest traffic volumes, as identified in the applicable implementation plan or which are identified through the interagency consultation process as described in Paragraph (1) of Subsection D of 20.11.3.105 NMAC; and (d) any project affecting one or more of the top three intersections in the nonattainment or maintenance area with the worst level of service, as identified in the applicable implementation plan or which are identified through the interagency consultation process as described in Paragraph (1) of Subsection D of 20.11.3.105 NMAC.

(2) In cases other than those described in Paragraph (1) of Subsection A of 20.11.3.123 NMAC, the demonstrations required by 20.11.3.116 NMAC may be based on either (a) quantitative methods that represent reasonable and common professional practice as determined through the interagency consultation process, described in Paragraph (1) of Subsection D of 20.11.3.105 NMAC; or (b) a qualitative consideration of local factors, if this can provide a clear demonstration that the requirements of 20.11.3.116 NMAC are met.

(3) DOT, in consultation with EPA may also choose to make a categorical hot-spot finding that Subsection A of 20.11.3.116 NMAC is met without further hot-spot analysis...