JOB SUMMARY: A selectee receiving a first appointment to the Federal Government (Civil Service) is entitled only to the lowest step of the grade for which selected. The display of a salary range on this vacancy shall not be construed as granting an entitlement to a higher rate of pay. MAJOR DUTIES: Performs plumbing tasks such as replacing hose bibs, valves, nipples, unions and elbows, fixtures, toilets, flush valves, faucets and various types of pipe and coper lines in a residential and commercial setting. Obtain and maintain proper operator certifications for water distribution level 1 and wastewater collection level 1. Assist in construction and repair of buildings and utilities including plumbing repair and installation, dig holes, repair masonry, drywall, painting, flooring, roofing, road maintenance and other duties. Operate equipment such as backhoe, tractor, skid steer loader, forklift, excavator, trencher, sewer pumper, sewer jetter and various pumps. This is a term position (more than 1 year) with an initial appointment expecting to last at least 13 months but may be extended up to a total of four years, or more based on any changes to regulations governing the number of years term appointments may last, without further competition. Term positions do not convey permanent status in the Federal service. The National Park Service retains the right to extend the duration of this appointment after selection and/or appointment, based on changes to the regulation governing the number of years term appointments may last. This change, which may be made at the agency's sole discretion and without further competition, shall not be construed or interpreted as the granting of a right to a selectee or employee to such an extension. No extension to a term appointment shall be granted to a selectee/employee to an amount of time that exceeds the maximum number of years authorized under any present or current regulation, unless such regulation expressly allows such action. IMPORTANT: Click the 'Apply for this job' button to view a complete job description.