170 likes | 412 Views
New Source Review Modeling & Impacts Evaluation. Dan Jamieson Air Permits Division Texas Commission on Environmental Quality Environmental Trade Fair 2014. By What Authority?. TCEQ receives its authority from: Texas Health and Safety Code, Chapter 382 - Clean Air Act (TCAA)
E N D
New Source Review Modeling & Impacts Evaluation Dan Jamieson Air Permits Division Texas Commission on Environmental Quality Environmental Trade Fair 2014
By What Authority? • TCEQ receives its authority from: • Texas Health and Safety Code, Chapter 382 - Clean Air Act (TCAA) • Federal Clean Air Act (FCAA) • New minor sources or modifications shall comply with 30 TAC §116.111 • New major sources or major modifications in an attainment or unclassifiable area shall comply with 30 TAC §116.160 Texas Health & Safety Code Clean Air Act
Who Requires Modeling? Who Requires Modeling? • Permit Reviewer is lead contact • Permit Reviewer determines which air contaminants and review types need to be included in the air quality analysis (AQA) • Review Type are: • NAAQS • PSD Increments • State Property Line • Health Effects • Each review type has a specific set of associated air contaminants • Some air contaminants are associated with more than one review type Air Contaminant Data Air Quality Demonstration Analysis
Air Quality Demonstrations NAAQS • SO2 • CO • PM10 PSD Increment • SO2 • PM10 Property Line • SO2 • H2S Health Effects • Benzene PSD Increment • SO2 • PM10 PSD Increment • SO2 • PM10 • Property Line • SO2 • H2S • Health Effects • Benzene Property Line • SO2 • H2S PSD Increment • SO2 • PM10 • Property Line • SO2 • H2S • Health Effects • Benzene Health Effects • Benzene PSD Increment • SO2 • PM10 • Property Line • SO2 • H2S • Health Effects • Benzene
ModelingProtocol • If project is major by itself or a major modification, a protocol is required • For all criteria pollutants with an increase • Must be sent to EPA Region 6 for review • May include protocol for state-only requirements • Items to include in protocol are listed in protocol checklist • Consider all the items in the protocol check list before you start on your protocol document Before you start, have a plan.
Modeling ProtocolBe Complete to Be Correct • Provide full documentation and details to reduce review time and mitigate potential issues • Protocol document should resemble AQA without modeling results Final product?Not exactly... Final product? Not exactly...
ModelingProtocolExample (Background) Station information? Time period? Monitored values? How will it be used? Justification?
Pre-modeling Meeting • If the project is at a minor site or is a minor modification at a major site, a protocol is not required, but recommended • Provide a modeling summary two days prior to the pre-modeling meeting to give ADMT time to review and prepare • Modeling summary includes same items as in protocol No Brainstorming Sessions
Pre-modeling Meeting Tips • Provide full documentation and details to reduce review time and mitigate potential issues • Meeting could be for pre-protocol preparation • Meetings are typically conference calls Present your assumptions. Show your calculations. Let’s resolve any issues. Do your research. Check your references.
Pre-modeling Meeting (cont) A good plan results in… • Pre-modeling meeting and/or protocol increases your chances of a successful project … a good final product!
The Air Quality Analysis • The AQA is an addendum of the air permit application • A stand-alone document Include all information in support of the project. • Describe any deviations or changes from protocol or meeting summary
Air Quality Analysis Tips • Include a complete listing of all electronic files • Summarize results demonstrating compliance • Reiterate everything from the protocol and/or pre-modeling meeting • Document any deviations from the protocol and/or pre-modeling meeting Present all information in a straightforward and organized fashion. • Provide as much documentation I would have never thought to look here!
Avoiding Deficiencies On time, under budget...and beyond! • Deficiencies slow down the process and delay permit issuance • Lack of sufficient information • Incorrect interpretations When is the deficiency cycle ever going to end…
Updates in Modeling Latest model program versions: • AERMOD version 13350 • AERMET version 13350 Updated processed meteorological input files from TCEQ (December 2013) Status of modeling guidelines
Contact Information • Dan Jamieson • Air Dispersion Modeling Team • (512) 239-4342 • daniel.jamieson@tceq.texas.gov • Daniel Menendez • Team Leader – Air Dispersion Modeling Team • (512) 239-1537 • daniel.menendez@tceq.texas.gov