Yorke Engineering, LLC (Yorke) was founded in 1996 and specializes in air quality, waste, storm water and industrial hygiene/safety services. We have assisted over 1,800 customers with air quality and environmental, health, and safety (EH&S) compliance, engineering, and permitting issues. Our philosophy is to efficiently help government and industrial customers with a complex array of EH&S rules and regulations issued by local, state, and federal agencies. From simple permits to complex agency negotiations, as well as small companies to the largest of California’s organizations, Yorke has successfully helped solve our clients’ air quality and EH&S issues in a cost effective and efficient manner. Yorke has over 80 staff members, including 55 highly educated technical staff members who come from various science and engineering academic backgrounds, all adding to our extensive air, water, waste, and industrial hygiene/safety permitting and compliance expertise and culminating in over 1,000 years of combined experience. Our staff consists of engineers that specialize in a multitude of fields, including chemical, environmental, mechanical, and even software engineering, as well as biological, occupational health, and chemistry environmental professionals. Yorke has 10 offices across the State, including Orange, Los Angeles, San Francisco, San Diego, Riverside, and Fresno Counties. For a full list of our office locations, please visit the Locations section below. For more information on the specific services we offer, please visit our website.