In the area of air quality, Trigon | Kleinfelder provides turnkey services to meet our clients’ needs. The air quality group has substantial experience with large and small environmentally sensitive air quality projects. We are staffed with professional engineers, meteorologists, chemists, and scientists. Our significant air quality services include:

•	Air permitting (Title V, PSD, New Source Review, MACT)
•	Dispersion modeling
•	Emission inventorying
•	PSD review
•	Stack testing
•	Ambient and meteorological monitoring
•	Pollution control equipment evaluation and design
•	BACT/MACT evaluations
•	Regulatory compliance
•	Risk-based compliance demonstrations

Our past performance with government agencies and industrial clients in relation to cost control, work quality, schedules, and internal quality control has been excellent. Experience gained with previous projects includes substantial work on environmental projects for the U.S. Department of Defense (DOD), U.S. Environmental Protection Agency (EPA), U.S. Department of Energy (DOE), and several state Departments of Transportation (DOT). However, most of Trigon | Kleinfelder’s collective experience is with industrial clients. Within the private industry, our repeat client base demonstrates our commitment to quality service, attention to detail, and client expectations. Our Air Quality staff has prepared and submitted hundreds of Title V permit applications for various industries.

Quality Assurance
As a professional engineering corporation, Trigon | Kleinfelder is firmly committed to quality assurance (QA) and has an approved QA Corporate Document in place and the capability to implement this program on a project basis. The program has been developed to establish and implement quality control measures, for work carried out in the office and field. For environmental investigations, a field work plan and site specific quality control plans are required. Audits are conducted on field procedures, office procedures and project files. Where design is involved, documents are checked and reviewed by a qualified professional before delivery to the client.

Permit Applications and Dispersion Modeling
Trigon | Kleinfelder's staff is familiar with the state laws, regulations, etc., applicable to environmental projects, particularly state and federal regulations relative to the Clean Air Act Amendment of 1990. Trigon | Kleinfelder can provide the following methods of Air Dispersion Modeling: AERMOD, ISCST3, CAL3QHC, SCREEN3, EDMS.

Responsiveness
Trigon | Kleinfelder prides itself on customer satisfaction and leads the industry in project completion timeliness. Our commitment to your needs is a direct reflection of our reputation, so your priorities are our undeniable charge.