Frequent Clients:

Cities

Campbell

Colfax

Irwindale

Pittsburg

Richmond

Rocklin

Sacramento

South San Francisco

Counties

Alameda

Glenn

Marin

Placer

San Luis Obispo

Solano

Sonoma

Yolo

Other

California Public Utilities Commission

Federal Aviation Administration

About the RCH Group

RCH has an environmental practice that builds upon the extensive experience of our staff to prepare high‐quality CEQA and NEPA documents in a timely and cost‐effective manner. We prepare technical analyses for air quality criteria pollutants, air quality health risk assessments, greenhouse gas emissions (climate change), and noise.