Any single position may not be assigned all duties listed below: perform inspections of facilities and facility equipment; assist regulatory agencies with inspections of activities; control insects, disease pests and weeds by using a variety of methods; observe, diagnose and report plant pathogen, insect and weed problems; install, operate, check and maintain equipment used in the heating, sanitizing, filtration and circulation of swimming pool water; operate and maintain technical equipment related to the delivery, monitoring and correction of water chemistry, water temperature, and water circulation; safely work with hazardous materials such as chlorine, carbon dioxide, and muriatic acid; perform underwater repairs of tile, plaster, and pool fixtures; perform carpentry, sheetrock, cement mixing and finishing, metalwork, painting, light electrical and plumbing work on a variety of City structures and facilities; cut up and dispose of trees, branches, brush and debris; operation aerial equipment and trim trees, using hand and power saws, pole pruners and loppers; observe, diagnose and report tree health problems; install, maintain, repair and rebuild irrigation systems and components; perform U.S.A. Ability to: Select and use appropriate resources for identifying plant problems, pests and treatment; perform work wearing appropriate personal protective equipment; lift and carry diving boards and other objects weighing up to 50 pounds; lift and carry lumber and bags of cement weighing up to 95 pounds; climb trees up to 150 feet high using saddles and ropes; lift, lower and drag heavy limbs weighing up to 80 pounds; carry objects such as jackhammers, concrete boxes, and pump motors weighing up to 95 pounds and lift them out of holes; select and use appropriate resources for identifying plant problems, pests and treatment; perform work wearing appropriate personal protective equipment; lift, lower, drag and carry heavy debris, tree limbs, and construction supplies weighing up to 60 pounds; perform work while wearing a back-pack blower or sprayer weighing up to 35 pounds; read plans and specifications; operate a loader; wear appropriate personal protective equipment; drag weights such as loaded lengths of hose representing 75 pounds of weight resistance; lift and operate jackhammers weighing 65 or 100 pounds; climb and perform work on ladders up to 12 feet in height.