Standing, Walking, Sitting, Lifting, Carrying, Pushing, Pulling, Climbing, Balancing, Stooping, Kneeling, Crouching, Crawling, Reaching, Handling, Fingering, Feeling, Talking, Hearing, Acuity far, Acuity near, Depth Perception, Field of Vision, Accommodation, Color Vision. Job Purpose Statement: Perform duties to collect samples from various District and Industrial sites, calibrate test equipment, perform field testing, record data and observe, and submit samples to laboratory for analysis.