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Virtually every air quality consulting project
involves development of emissions estimates for the air pollutant sources under
consideration. Emissions inventories are used in the context of all air
permitting projects to determine applicable regulatory requirements.
In addition, EES has assisted clients in quantifying
offsets requirements and in locating and obtaining regulatory approvals for
on-site and off-site emission reductions to satisfy permit conditions for both
criteria and hazardous air pollutants. Development of facility or area-wide emissions
inventories may include using mass balance techniques, emissions monitoring
data, appropriate emission factors, engineering calculations, or a combination
of these methods. Our experience with many industrial processes keeps
EES air quality engineers apprised of emission factors and estimation methods
approved by regulatory agencies, and enables us to make reasonable emission
estimates for unusual or complex source configurations.
Emission Inventory Vulcan Materials Company EES
managed the preparation of the 2001 emission inventory report for two facilities
located in San Diego. EES estimated
the emissions for two hot mix asphalt batch plants, two batch concrete plants,
and two aggregate & sand processing operations.
Project involved a site visit to identify emitting processes, equipment
specifications, materials used, and operating parameters.
Permits to Operate were used to identify operation limitation and
estimate maximum hourly emissions. Annual
emissions were quantified using source test data, emission factors, and other
engineering calculations. Emission Inventory SeaWorld Adventure Park EES
managed the preparation of the 2001 emission inventory report for the
co-generation facility, miscellaneous combustion sources, and coating
applications. EES project manager
conducted a site visit to identify emitting processes, equipment specifications,
materials used, and operating parameters. Permits
to Operate were used to identify operation limitation and estimate maximum
hourly emissions. EES staff used
source test data, emission factors, and other engineering calculations to
quantify emissions from the facility.
Emission Inventory San Diego Unified Port District EES performed an emission
inventory for the San Diego International Airport. Project involved a site visit to identify emitting processes,
equipment specifications, materials used, and operating parameters.
Permits to Operate were used to identify operation limitation and
estimate maximum hourly emissions. Annual
emissions were quantified using source test data, emission factors, and other
engineering calculations.
Comprehensive Emission Inventory Plans and Report Vulcan Materials Co. EES staff prepared three comprehensive Emission
Inventory Plans and Reports (CEIP & CEIR) for an aggregate processing plant
and 2 asphalt batch plants. The
CEIP was prepared using the Kern County APCD
CEIDARS II forms that included a list of emitting processes, list of
criteria and toxics air pollutants, process flow diagrams, and emission
quantification methods. The
CEIR was prepared using the CARB CEIDARS-Lite computer program. Emission
Inventory Fairchild AFB EES
staff developed a base-wide emissions inventory including stationary and mobile
sources. Criteria and hazardous air
pollutants were estimated from boilers, IC engines, maintenance shops, aircraft
emissions, trucks, ground support equipment, fueling and storage operations,
ozone depleting chemicals, paint booths, and degreasing operations.
In addition, EES staff developed an access database to aid base personnel
in tracking all chemicals used and estimating future emissions and potential
future increase in emission rates due to projected future growth.
Preparation of Air
Toxics Emissions Inventories UNOCAL
Corporation EES engineers have provided full air quality consulting services for UNOCAL facilities in Ventura and Los Angeles Counties. Pursuant to California legislation requiring disclosure of routine air toxics releases, we prepared emissions inventories for eight different UNOCAL production and processing facilities. These projects involved identification of the toxic compounds potentially emitted from each piece of equipment, review of the available literature for applicable emission factors, and, where necessary, development and implementation of plans to obtain the required information from source tests, mass balance techniques or engineering calculations. Detailed emissions inventory reports were then prepared to present the derived emission rates, as well as pollution control technology descriptions and performance data, stack parameters, and facility operating information. All of the reports received approval from the respective local air pollution agencies. Development
of Air Toxics Emissions Inventory and Permitting Support Mobil
Corporation EES
engineers helped Mobil to prepare an air toxics emissions inventory report for
the subject marine terminal facility at the Port of Los Angeles, as required by
California state law. The required
inventory was developed through the application of published emission factors,
engineering calculations and measurements conducted by EES staff to determine
the composition of fugitive vapors at various points. We also developed and implemented an emission control
strategy for compliance with a new South Coast Air Quality Management District
rule for reducing wastewater separator emissions of reactive organic vapors.
This analysis has resulted in installation of a cover for the marine
terminal separator basin, a vapor collection system, and a carbon adsorption
system to remove hydrocarbons from the exhaust stream. MACT Equivalency
Determination Industrial
Client EES staff
helped an industrial client successfully obtain a maximum achievable control
technology (MACT) equivalency determination under a state regulation
implementing MACT for chlorinated organic solvent degreasers.
In this case, the state regulation, which was adopted to implement U.S.
EPA’s federal MACT standard for chlorinated organic solvent degreasers, does
not include all of the control options of the federal regulation.
Therefore, the company was required to demonstrate that the control
system they had in place was equivalent to the one of control methods approved
by the state. EES engineers
completed a technical analysis that convinced the regulators that the control
system currently in place was equivalent to the other methods of control
approved by the state. Based on EES’s work, the state issued an equivalency
determination that allowed the plant to continue to operating the existing
control system and avoid retrofit costs. Best Available Control
Technology Analysis DuPont
Corporation EES
conducted a best available control technology (BACT) analysis and additional
environmental impacts analysis for a plant modification in order for the client
to assess the most beneficial permitting option of pursuing a PSD permit or a
Federally-Enforceable PSD minor source permit. Best Available Control
Technology Analysis Ocean State
Power This
500 MW combined cycle station is powered by gas-fired combustion turbines, with
fuel oil as the backup energy source. EES
staff completed a best available control technology (BACT) analysis for
construction of this cogeneration station. The BACT analysis required the
investigation of applicable control technologies for NOx, CO, SO2, and
particulate emissions. Control
techniques evaluated range from low-sulfur oil for SO2 control to selective
catalytic reduction (SCR) and water or steam injection for NOx control. The BACT
analysis contained detailed presentations of cost effectiveness and incremental
cost data for reducing emissions. |
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