NSR Permit - 9079M1 - Statement of Basis

Aug 31, 2026

Upload by Jacob

NSR Permit Statement of Basis documents a Regular-New permit action for the MV 400 TPH Astec HMA hot mix asphalt plant operated by Mesa Verde Enterprises, permit number 9079M1. The basis describes the facility process, co-location with a Toro Rock aggregate crushing and screening plant, and the emission source evaluation using single-source analysis. It covers PSD/minor-source determinations, public response received from 23 citizens, compliance/enforcement notes, and modeling assumptions and conditions concluding no air quality standard exceedances.

LanguageEnglish

CategoryLetters

FormatDOCX

Pages8

Reading Time3 min

AccessFree to download

Statement of Basis - Narrative

Permit Identification

Facility and Modification Description

Source Determination and PSD Applicability

Public Response and Concerns

Startup, Shutdown, and Compliance Status

Modeling Review and Permit Conditions

Statement of Basis - Narrative NSR Permit Type of Permit Action: Regular-New Facility: MV 400 TPH Astec HMA Plant Company: Mesa Verde Enterprises Permit No(s).: 9079M1 Tempo/IDEA ID No.: 39845 - PRN20240001 Permit Writer: Joseph Mashburn Fee Tracking (not required for Title V) Plant Process Description: The function of the facility is to produce hot mix asphalt. The 400 tph hot mix asphalt plant will include: aggregate/RAP storage piles, a 5-bin cold aggregate feeder, scalping screen, pug mill, mineral filler silo with screw conveyor and baghouse, drum dryer/mixer with baghouse, incline conveyor, asphalt silo, asphalt heater, six (6) transfer conveyors, Evotherm storage tank, and two (2) asphalt cement storage tanks. The HMA plant will be co-located with GCP-2-3269 aggregate crushing and screening plant operated by Toro Rock Products, LLC. Toro Rock will be providing the aggregate used in the MV 400 TPH Astec HMA Plant asphalt mix. Description of this Modification: This is a new facility. Source Determination: 1. The emission sources evaluated include: Hot Mix Asphalt Plant and co-located Toro Rock GCP2 Aggregate Crushing and Screening plant. 2. Single Source Analysis: SIC Code: Do the facilities belong to the same industrial grouping (i.e., same two-digit SIC code grouping, or support activity)? No. The Aggregate Crushing and Screening plant has a different SIC Code. Common Ownership or Control: Are the facilities under common ownership or control? No Contiguous or Adjacent: Are the facilities located on one or more contiguous or adjacent properties? Yes 3. Is the source, as described in the application, the entire source for 20.2.70, 20.2.72, 20.2.73, or 20.2.74 NMAC applicability purposes? Yes PSD Applicability: The source, as determined in 3.0 above, is a minor source before and after this modification. . Public Response/Concerns: As of March 8, 2024, or the issuance date of this permit, this permit writer has received public comment from 23 citizens. Startup and Shutdown: If applicable, did the applicant indicate that a startup, shutdown, and emergency operational plan was developed in accordance with 20.2.70.300.D(5)(g) NMAC? N/A If applicable, did the applicant indicate that a malfunction, startup, or shutdown operational plan was developed in accordance with 20.2.72.203.A.5 NMAC? Yes Did the applicant indicate that a startup, shutdown, and scheduled maintenance plan was developed and implemented in accordance with 20.2.7.14.A and B NMAC? Yes Does the facility have emissions due to routine or predictable startup, shutdown, and maintenance? No. If so, have all emissions from startup, shutdown, and scheduled maintenance operations been permitted? No, the permittee states: No SSM emissions are predicted for this permit application. All control systems will be operational prior to the start or shutdown of asphalt production or aggregate processing. Maintenance will be performed during period with no production. Compliance and Enforcement Status [Title V and NSR/PSD new or modification. Use this email HYPERLINK "file:///\\\\Aurora\\aqb\\AQB-Permits-Section\\Title-V\\Forms\\COMPLIANCE%20ENFORCEMENT%20EMAIL%20TEMPLATES\\Compliance%20verification%20request%205-13-13.oft" template: This is a new facility. Also, per 2/7/2024 email from Alejandra Avila in the Enforcement Section, “No enforcement action for that Facility in our database.” Modeling: Sahil Kassanjee performed the modeling review. The following is from his report, dated 5/15/2024: Modeling Assumptions: The facility may operate in a year starting from February till the end of November, 10 hours in a day, anytime of a day. There are no restrictions of operations during daylight or night hours. Permit Conditions: The facility may operate during a calendar year starting from February 1st till November 30th, 10 hours in a day, anytime of a day. There are no restrictions of operations in operating during daylight or night hours. The facility may operate up

FAQs

What facility and permit action does this Statement of Basis cover?

It covers a Regular-New NSR permit for the MV 400 TPH Astec HMA hot mix asphalt plant under permit number 9079M1.

How were emission sources evaluated in the source determination?

The evaluation includes the Hot Mix Asphalt Plant and the co-located Toro Rock GCP2 Aggregate Crushing and Screening plant, with single-source analysis addressing industrial grouping, ownership/control, and property adjacency.

What is the modeling conclusion and what standards were considered?

Modeling shows operation does not cause or contribute to exceedances of applicable air quality standards, including relevant NAAQS/NMAAQS and PSD increments for NO2 and PM10, with asphalt fume concentrations remaining below required thresholds.

Aug 31, 2026

Upload by Jacob