Mdeq air division air update august 6 2008
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MDEQ Air Division Air Update August 6, 2008. Mississippi Update. Ozone PM2.5 Lead Regional Haze CAIR, CAMR Vacatur Boiler MACT Vacatur Area Source MACT Lead Based Paint – RRP Rule. 2005-2007 8-Hour Ozone Design Values (ppb). Monitored Counties > 75 ppb MSA’s of Monitored Counties

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Mdeq air division air update august 6 2008
MDEQ Air DivisionAir UpdateAugust 6, 2008


Mississippi update
Mississippi Update

  • Ozone

  • PM2.5

  • Lead

  • Regional Haze

  • CAIR, CAMR Vacatur

  • Boiler MACT Vacatur

  • Area Source MACT

  • Lead Based Paint – RRP Rule


2005 2007 8 hour ozone design values ppb
2005-2007 8-Hour Ozone Design Values (ppb)

Monitored Counties > 75 ppb

MSA’s of Monitored Counties

>75 ppb are in gray


2005 2007 pm 2 5 annual design values ug m 3
2005-2007 PM2.5 Annual Design Values (ug/m3)

Standard = 15.0 ug/m3


2005 2007 pm 2 5 24 hour design values ug m 3
2005-2007 PM2.5 24-Hour Design Values (ug/m3)

Standard = 35 ug/m3


Proposed lead standard
Proposed Lead Standard

  • Final rule will be signed by October 15, 2008

  • Final designations to be made by EPA in October 2011

  • Mississippi has not monitored for lead since 1995

  • Mississippi will likely be required to monitor at several sites, depending upon the final lead standard chosen.


Regional haze update
Regional Haze Update

  • Went to Public Notice on June 16th and had a public hearing July 16, 2008.

  • Plan to go to Commission on August 28, 2008.

  • Supplemental SIP will need to be submitted in a year to address MS Phosphate and DuPont determinations.


Cair camr vacatur
CAIR & CAMR Vacatur

  • CAMR was vacated on Feb 8, 2008

  • We only had four facilities affected by this rule

  • CAIR – Vacated July 2008

  • MS Adopted both CAIR & CAMR by reference

  • Regional Haze SIP may have to be revised

  • Transport SIPs required by 110(a)(2) (d)(i) relied on CAIR

  • Will impact Ozone Attainment Planning

  • Waiting for more finality before any actions are taken


Boiler mact vacatur
Boiler MACT Vacatur

  • Boiler MACT was vacated in June 2007

  • MS does not believe that 112j applies

  • Waiting on Guidance from EPA regarding applicability of 112j

  • We have a list of Q& A regarding the boiler MACT on our website


Area source mact
Area Source MACT

  • EPA has promulgated Area Source MACT Standards covering 45 of the 70 source categories.

  • MS is sending surveys out for these Area source categories.

  • This has been a very resource intensive process.


Lead based paint rrp
Lead Based Paint - RRP

  • EPA published the Lead Renovation, Repair and Painting (RRP) Program on April 22, 2008.

  • MS is planning on accepting the RRP program delegation

  • Extensive planning

  • By April 2010, training providers must be accredited, renovation firms and dust sampling technicians must be certified.




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