CRB Geological & Environmental Services, Inc. (CRB)

Air Quality Service


CRB's team of experts perform indoor air quality assessments for our clients using a consistent approach to identify and manage exposure risks.  Our indoor air quality assessment capabilities include the following: Mold, Asbestos, Radon, Odors & VOCs. Vapor Intrusion Control Systems & Abatement. Indoor Air Quality (IAQ) Reporting. Professionally Certified Inspections & Recommendations.

Air Permits
Air permitting can be a complex process, and CRB provides detailed support for state and federal Air Construction and Operating Permit Applications.  CRB personnel review facility operations, compile all necessary information, and prepare and submit the application to the appropriate agency.

Permit and Compliance Strategy Development
In the initial stages of the permitting process, CRB evaluates several factors including emission controls, emission offsets, qualifying exemptions and rule applicability.

Prevention of Significant Deterioration (PSD) Permitting
The provisions associated with PSD establish specific construction & operating permit requirements. CRB evaluates PSD applicability, then prepares and submits the permit application.

Title V Permitting
CRB offers a full range of Title V services including review of regulatory requirements, application preparation, construction of a compliance program and maintenance of required records.  We assist with fee calculations by compiling facility usage records and calculated emissions to determine relevant fees.

Negotiation with Regulatory Agencies
CRB frequently interacts with permitting agencies to address issues that arise during the permitting process to obtain permit provisions.

Emissions and Control Technology Evaluation
Experienced staff members conduct an extensive evaluation, including identification and quantification of both controlled and uncontrolled source emissions.

Toxic Release Inventory (TRI) Reporting
Section 313 of Title III of the Superfund Amendments and Reauthorization Act (SARA) requires qualifying facilities to submit an annual release report of toxic substances. CRB can assist in the determination of facility eligibility, calculation of toxic emissions and submission of reporting forms.

National Emission Standards for Hazardous Air Pollutants (NESHAPS) Analysis and Reporting
For sources subject to NESHAP, CRB compiles facility usage records, calculates emissions, and submits appropriate reports to regulatory agencies.

Annual Operating Reports
CRB compiles facility usage records, calculates emissions, and submits the report to regulatory agencies.

Air Emissions Best Available Control Technology (BACT) Review
CRB conducts a technical evaluation of emission controls and economic feasibility.

Air Compliance Audits
CRB conducts compliance audits, which assist clients with the achievement and maintenance of compliance with regulatory requirements and permit conditions. Audits consist of a facility inspection and records audit. In addition, CRB is available to assist in compliance disputes with regulatory agencies.

Atmospheric Dispersion Modeling
Experienced staff utilize atmospheric dispersion modeling for regulatory permit support and planning, Risk Management Plans, ambient air monitor placements, source culpability analyses and research purposes. CRB staff use the ISCST, ISCLT, CALMET/CALPUFF and EPA SCREEN models.

Emission Inventories
CRB maintains an emissions database for facilities to assist with permit compliance.

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