gric case study permit review
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GRIC Case Study Permit Review. Dan Blair, Compliance and Enforcement Mgr. Gila River Indian Community (GRIC) Department of Environmental Quality. Background: Gila River Indian Community. Akimel O’odham (Pima) & Pii Pash (Maricopa) Located in Maricopa & Pinal counties - PowerPoint PPT PresentationTRANSCRIPT
GRIC Case Study GRIC Case Study Permit Review Permit Review
Dan Blair, Compliance and Enforcement Mgr.
Gila River Indian Community (GRIC)
Department of Environmental Quality
Background: Gila River Background: Gila River Indian CommunityIndian Community
Akimel O’odham (Pima) & Pii Pash Akimel O’odham (Pima) & Pii Pash (Maricopa)(Maricopa)
Located in Maricopa & Pinal countiesLocated in Maricopa & Pinal counties Established in 1859 by Executive Established in 1859 by Executive
OrderOrder 374,000 acres374,000 acres Population 15,500 people Population 15,500 people (on- (on-
reservation)reservation)
GRIC Permit Review
Received Notice of Proposed Power Plant from Pinal County (2001)
GRIC does not currently have authority under Section 505 (Courtesy Notice)
Public Notice Contains General Information of Proposed Project (see handout “Public Notices”)
GRIC contacted Pinal County AQCD for complete copy of Permit Application
GRIC Permit Review (cont.)
Received Proposed Permit Application from Pinal County (dated 2000)
600MW Natural Gas Fired Power Plant (peaking )
Simple Cycle Turbines Option 1 - 12 LM 6000 turbinesOption 2 - 6 LM 6000 turbines and 2 GE FA
turbines
GRIC Permit Review (cont.)
Facility major PSD source of NOx and CO > 250tpy
PM10 and VOC < 250tons/yr but exceeds significance level and requires PSD review
GRIC Permit Review (cont.)
Pinal County in attainment for NOx, SOx, PM10 and VOCs
Pinal County AQCD is agency responsible for permitting facility
Facility must obtain PSD Permit Title V Operating Permit
and comply with Title IV Acid Rain requirements
GRIC Permit Review (cont.)
Title V operating permit required because NOx, CO, PM10 and VOCs > 100tpy
Facility also subject to Title IV, Acid Rain requirements due to > 25 MW capacity
GRIC Permit Review (cont.)
Sundance Energy (Proposed) Annual Emissions
12 GE LM 6000 SPRINT Turbines (Permit App)
NOx CO PM10 SOx VOC
Annual total tons/yr
(12 Units)
Annual total tons/yr
(12 Units)
Annual total tons/yr
(12 Units)
Annual total tons/yr
(12 Units)
Annual total tons/yr
(12 Units)
1563.9 2839.2 195.0 35.1 167.7
GRIC Permit Review (cont.)
Permitee proposed in application that SPRINT atomized water spray system increased
efficiency and Reduced emissions to level of Best Available Control
Technology (BACT) or 25ppmvd
Annual potential emissions based on 6500 hours/year at 100% load
HAPs emissions calculated < major source thresholds
GRIC Permit Review (cont.) Emissions modeled to determine impacts on
Visibility Soils Vegetation
in two Class I areas within 100 km Superstition Wilderness Area (55km) and Saguaro West National Park (75km)
PSD Class II increment analysis for Nox conducted Ambient Air Impacts below ambient air quality
standards and PSD Class II significant levels for all pollutants
GRIC Permit Review (cont.)
Why GRIC concernedModeling indicated highest area of pollutant impact on
eastern ridges of Sacaton Mountains within GRIC (NOx & PM10)
Hig- impact area near town of SacatonPermit proposals for additional power plants (18) in
greater Phoenix areaOther Turbine plants proposing SCR for NOx control
to 5 ppmvd
GRIC Permit Review (cont.)
GRIC submitted comments (see Handout) concerning High NOx emissions Cultural concernsAdverse air quality impacts
Pinal County reevaluated BACT analysis in response to GRIC comments, required facility to install SCR, reducing NOx emissions from proposed 25 ppmvd to 5.0 ppmvd
GRIC Permit Review (cont.)
Total NOx emissions reduced from 1563.9 tons/yr to max of 448 tons/yr
Conclusion
Conclusion When commenting on a permit, pick a
pertinent issue to comment onEmissionsMACT, BACT, LAERPipeline/power line issuesCultural issuesTransport of fuelsWater availability, etc.
Conclusion (cont.)
Comments simply stating you don’t want plant built will be ignored