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PSD/NNSR Applicability Examples Matt Earnest, Ph.D. Air Permits Division Texas Commission on Environmental Quality Advanced Air Permitting Seminar 2014.

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Presentation on theme: "PSD/NNSR Applicability Examples Matt Earnest, Ph.D. Air Permits Division Texas Commission on Environmental Quality Advanced Air Permitting Seminar 2014."— Presentation transcript:

1 PSD/NNSR Applicability Examples Matt Earnest, Ph.D. Air Permits Division Texas Commission on Environmental Quality Advanced Air Permitting Seminar 2014 1

2 Applicability Flow Chart 2 Go though flowchart, pollutant by pollutant. 1-is source in nonattainment area for the pollutants? 2-is the source an existing major source? (major for one, major for all) 3-increases only, no decreases at this step. Ensure the change is a modification. 4- a major mod occurs when increases > significant emission rates 5- are the project increases > than major source thresholds? 6- include all increases and creditable decreases in contemporaneous window.

3 Does PSD/NNSR Apply? 3

4 Major Source Thresholds 4 PSD Criteria Named100 tpy Un-named250 tpy Ozone NNSR Marginal100 tpy Moderate100 tpyWise Co. Serious50 tpyDFW Severe25 tpyHGB Extreme10 tpy PM 10 NNSR Marginal100 tpy Moderate100 tpyEl Paso Co. Serious70 tpy ≥

5 Example: New Major Source (Type 1) 5 Will the following “unnamed” source, proposed to be built in a severe ozone nonattainment area (HGB), be major for NNSR and/or PSD? If so, for which pollutants? PollutantNO X COPM 10 Source PTE (tpy)9131552 NNSR: Yes, major source because NO X ≥25 tpy PSD: Yes, major source for all pollutants because CO≥250 tpy

6 Project Increase at Major Source (Type 2) 6 Is Project Increase ≥ PSD Significant Emission Rate? Project Increase = Planned Emissions - Baseline Actual

7 Example: Base Line (Type 2) 7 YearEPN AEPN BEPN CEPN D (tpy) 20045020190 20055220230 20066021220 20076122230 20086121230 20096121200 20105919220 20116018220 20126016230 20136017200 BAE6121.52350 A site is considering a throughput increase in 2014. What is the baseline actual emission rate, given EPN D was built in 2013 with an allowable of 50 tpy? Right example-correct way to calculate BAE by using emissions from all EPNs from years 2007 and 2008 Must be same time period for all facilities for common pollutant. Adjust baseline if: < 24-month operation Compliance issues

8 Planned Emissions 8 EPN A is operating far below it’s PTE. What are the project increases given the following? EPN A Baseline Actual Emissions (BAE) = 61 tpy EPN A Potential to Emit (PTE) = 201 tpy EPN A Projected Actual after project (PAE)= 72 tpy Project increase: Based on Projected Actual: PAE – BAE = 72 – 61 = 11 tpy Based on Potential to Emit: PTE – BAE = 201 – 61 = 140 tpy Use of Projected Actuals may require additional record keeping.

9 Table 2F 9

10 Contemporaneous Window 10

11 Example: Netting (Type 3) 11 A company is considering a major project at EPN B that requires netting. The source has been affected by the following unrelated projects within the last five years. What is the contemporaneous change? PAST 2010: PTE = 15 tpy Proposed PTE = 25 tpy Baseline Actuals = 15 tpy Project Change: 25 - 15 = 10 tpy 2011: PTE = 25 tpy Proposed PTE = 25 tpy Baseline Actuals = 15 tpy Project Change: 25 - 15 = 10 tpy 2011: PTE = 25 tpy Proposed PTE = 25 tpy Baseline Actuals = 15 tpy Project Change: 25 - 15 = 10 tpy CURRENT 2014: PTE = 20 tpy Proposed PTE = 30 tpy Baseline Actuals = 15 tpy Project Change: 30 - 15 = 15 tpy Net: 15 + 10 + 10 + 10 = 45 tpy

12 3F: Contemporaneous Change 12

13 Contemporaneous Window 13

14 Example: End Points (Type 3) 14 A company is considering a major project at EPN B that requires netting. The source has been affected by the following unrelated projects within the last five years. What is the contemporaneous change? 2010: PTE = 15 tpy Proposed PTE = 25 tpy Baseline Actuals = 15 tpy Project Change: 25 - 15 = 10 tpy 2011: PTE = 25 tpy Proposed PTE = 25 tpy Baseline Actuals = 15 tpy Project Change: 25 - 15 = 10 tpy 2011: PTE = 25 tpy Proposed PTE = 25 tpy Baseline Actuals = 15 tpy Project Change: 25 - 15 = 10 tpy 2014: PTE = 20 tpy Proposed PTE = 30 tpy Baseline Actuals = 15 tpy Project Change: 30 - 15 = 15 tpy Net: 15 + 10 + 10 + 10 = 45 tpy No...Year 2011 is not considered in the calculation to determine the contemporaneous change; 45 tons/year is not the correct answer 2010: Baseline Actuals = 15 tpy, 2011, 2011, 2014: Proposed PTE = 30 tpy, Net: 30 – 15 = 15 tpy Baseline Actuals = 15 tpy 2011: 2014: Proposed PTE = 30 tpy Net: 30 - 15 = 15 tpy

15 3F: Contemporaneous Change 15

16 Items to Double Check 16 Project aggregation Site definition Inclusion of fugitives Differences with power generation Demand growth exclusion Retrospective reviews

17 Thank you 17 For more information: See Guidance: APDG 5881, Major New Source Review - Applicability Determination (March 2013) APDG 6241v1, Fact Sheet – PSD and Nonattainment (Revised 07/14)

18 Contacts 18 Matt Earnest (512) 239-2618 Johnny Vermillion (512) 239-1292 Air Permits Division (512) 239-1250 Air Permits Division Matt Earnest (512) 239-2618 Air Permits Division Johnny Vermillion (512) 239-1292 Main Line (512) 239-1250 Air Permits Division


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