Variety of floor surfaces including concrete, gravel, asphalt, dirt, tile, loose stones, uneven surfaces, slippery surfaces, and wet surfaces; Inside environment; Outside environment all year in all weather conditions and temperatures; Residential and commercial wastewater/Biosolids; Chemicals; Lighting conditions including natural light, fluorescent, incandescent, and low light; Vibration; Moving equipment; Work in confined spaces. Performs a variety of tasks including field survey, surveillance, investigation, assessment, compliance assistance, and compliance assurance activities related to the implementation of Metro's Industrial Pretreatment Program (IPP) with a primary focus on sectors within the range of industrial and commercial users.