Testimonials
Sierra’s engineering staff has been providing to Best Air Control technical support on sizing, selection and permitting of various types of air pollution control equipment through out the state of California for the past 15 years. We found their support valuable in completing the jobs on time & in compliance with the regulatory requirements.
Coast Community College District is comprised of three community colleges ( OCC, GWC & Coastline). We have used Sierra’s services in conducting onsite air and hazardous materials audits, and obtaining permits for various types of equipment. Sierra’s staff knowledge of the various types of equipment operating in an educational facility has benefited us in being compliant, and preserving a cleaner environment.
For the past 18 years, Sierra’s engineering staff has provided technical & regulatory support to dairies & composting operations Southern California. The staff’s insight & knowledge of the regulatory requirements as well as their technical expertise in implementing compliance measures has assisted the dairy owners and composting operators to achieve compliance in a timely & cost effective manner.
Gro Well, Inc. planned to start a new compost & wood chip bagging operation in southern California about two years ago. We inquired about local companies with expertise on agricultural resources and the regulatory requirements. Sierra Engineering was recommended as a reliable company with experienced staff. We are glad that we made the right choice for our start up operation and the ongoing support.
Sierra’s Engineering staff has been providing technical & regulatory support to our plant operations for nearly a decade. They are very familiar with the various processes in our industry, and we found their support valuable.
Sierra Engineering has been providing air quality permitting and water quality support to our plant personnel for the past several years. Their staff expertise has helped us to complete the projects on time, and meet our production demand.