When required to go to a wellsite, the QA/QC Engineers work environment may include exposure to hazardous materials, operating conditions, audio up to 85 dB and inclement weather, including typical and atypical outdoor elements and extreme cold and hot weather temperatures. A QA/QC Engineer works primarily indoors and will be sitting for prolonged periods at a desk, while typing on a computer, whether in home office, corporate office, client office, or EVO jobsite.