Navajo Nation Air Quality Control Program

Operating Permit Program

Navajo Nation Environmental Protection Agency

Route 112 North/Bldg. 2837Fort Defiance, AZ 86504

FAX: (928) 729-4313Phone: (928) 729-4096

Our Mission

To protect and enhance the health and

livelihood of Navajo people

To protect and preserve the

natural beauty and

environment on the Navajo

Nation

To ensure the air emissions

from the industries

operating on the Navajo Nation are regulated

Overview Navajo Nation Air Quality Control Program (CAA Section 105

Grant)

Monitors ambient air quality

Open Burn Regulations

Navajo Nation Operating Permit Program

Issues Title V permits to major sources on the Navajo Nation

Clean Air Act Amendments 1990

Title I Air Pollution and Control

Title IIEmission Standards for Moving

Sources

Title IIIGeneral

Title IVAcid

Deposition Control

Title VPermits

Title VIStratospheri

c Ozone Protection

Clean Air Act, USC Title 42 Chapter 85

Title V Permit A Title V permit grants a source permission to operate and includes all air

pollution requirements that apply to the source, emissions limits, monitoring, record keeping, and reporting requirements in a single document.

Major Source Threshold in Attainment Areas

Pollutant Annual Emissions ( tons/yr)

VOC, NOx, SOx, CO, PM10 100

Single HAP 10

Combination of HAPs 25

Purpose of a Title V Permit

To improve compliance and make enforcement easier by

Listing all application requirements in one document, including terms from NSR permits, in one document

Requires reporting and certifications

Adding source specific monitoring

Increasing public access to permit records

Making the term of Title V permit federally enforceable

Characteristic of an effective Title V permit

Clearly identify the

requirements that apply to the

facility

Requires the facility to perform

monitoring to assure the public that facility is in compliance

Provide the public with the

ability to enforce permit

conditions

Title V Sources on the Navajo Nation • El Paso Natural Gas Compressor stations at:

1. Leupp

2. Dilkon

3. Navajo (Cornfields, AZ)

4. Window Rock

5. Gallup

6. White Rock

• Transwestern Pipeline Leupp Compressor Station

• Peabody Western Coal Company• ConocoPhillips Wingate Fractionating Plant• Resolute Aneth Unit • APS Four Corners Steam Electric Station• SRP Navajo Generating Station

Operating Permit Program (OPP) and the Clean Power Plan (CPP)

All federal requirements under the Clean Air Act will be incorporated in the Title V Permit and the permit will be issued by NNEPA-OPP

Revisions or reopening

Permit process – public notice or public hearing

Navajo Generating Station and Four Corners Power Plant are the two effected EGUs that are subject to the CPP.

Option2012

Emissions

Proposed Supplemental

2014Final Rule

2015Proposed Alternative

Rate, lbs/MW

h2121 1989 2034 1305

Mass Cap, Tons

31,416,87329,644,47

730,260,664 21,700,587

Average Annual Affected Source Mass Goals (Short Tons)

State2022-2024 2025-2027

2028-2029

Interim (2022-2029) Final (2030)

           Navajo Nation

26,449,393

23,999,55622,557,74

924,557,793 21,700,587

The CPP has finalized both a rate and a mass based approach. • Table 1 lists the rate and combined mass for the Navajo Nation (both

Navajo Generating Station and Four Corners Power Plant) for 2012 actual, proposed in 2014 and finalized in 2015.

• Table 2 lists the mass based goals broken down by interim periods.

Table 1:

Table 2:

What the Navajo Nation is doing…

Developed a Navajo Nation Carbon Team

Representative from a variety of Navajo Nation Departments (NNEPA, Division of Natural Resources, NN Department of Justice)

Participating in Government to Government Consultations with EPA

Currently reviewing the proposed Federal Implementation Plan