Open & closing dates

09/11/2018 to 10/11/2018

$27.60 to $33.91 per hour


The AOC is accepting applications for a Pipefitter to perform pipefitting and plumbing tasks; however, primary responsibility will be the installation and maintenance of landscape irrigation systems. This position is designated as “Emergency / Essential” and the incumbent will be required to work during emergency situations and inclement weather conditions.


The position is organizationally located in the Architect of the Capitol (AOC), Office of the Chief Operating Officer, Superintendent Capitol Grounds and Arboretum, Maintenance Division, Plumbing Branch. The position serves as a Pipefitter and performs journey level duties and responsibilities in plumbing and pipefitting throughout the Capitol Grounds, primarily with landscape irrigation systems. Performs both pipefitting and plumbing duties based upon availability to respond to job needs during their shift. Major Duties: Responsible for the installation of major 12 inch diameter, steel pipe for fire hydrant installation and repair within the perimeter of the Capitol Grounds. Installs backflow preventers/backflow check valves, involving major excavation and the cutting and welding of steel pipe typical of the Pipefitting occupation. Utilizes excavation equipment, including a Ditch-witch (for more than one mile of trenching), Bobcat, Tractors, Sewer Machine for catch basins, as well as the K50 snake. Ensures that fire hydrants meet D.C. Water and Sewer Authority (WASA) and AOC service testing requirements annually. Installs, maintains and repairs complex landscape irrigation systems including electronically controlled large output heads to drip irrigation tape. This includes programmable valves, timing and water control flow valves. Lays out and installs piping and water delivery components; backflow prevention components; mechanical, hydraulic and electrical irrigation controls; and other irrigation system components. Troubleshoots and repairs irrigation components and systems. Collects site data in regards to landscape water requirements and use. Makes maintenance recommendations and performs minor repairs. Performs field measurements and observations. Determines irrigation uniformity and efficiency. Develops a basic irrigation schedule in conjunction with gardening teams. Works with gardening teams to manage overall irrigation water use. Executes irrigation projects to meet all specifications and requirements. Prepares installation sites, including layout, staking, excavation, boring, trenching, grading and backfilling. Identifies and implements system upgrades and modifications and manages the control system to provide the most efficient irrigation possible. Provides direction to the end-users on system use, scheduling, maintenance and water conservation. Installs fire sprinkler system lines that include 80 psi fire sprinkler heads and 75 hp motors. Welding and brazing is performed for copper, brass, cast iron and steel piping up to 10 inches in diameter. Uses electric resistance welding, such as Smaw stick, Gtaw tig, Gmaw mig, plasma cutting and oxygen/acetylene torch. Responsible to install and maintain exterior drinking fountains. Responsible to maintain the historic exterior ornamental fountains throughout the Capitol campus. This process includes seasonal startups and shut downs as well as cleaning and maintenance through the season. Works with other skilled trades such as masons and electricians in conjunction with ongoing maintenance and preservation of ornamental fountains. Troubleshoots piping systems and related fixtures for water conservation efficiency. Repairs leaks in pipeline systems in accordance with specifications and codes. Repairs piping by welding, bolting, brazing, gluing, fusing, soldering and replacing with new couplings including Pro-Press. Provides or receives training, either on-the-job or through classroom training, to ensure that all safety practices and equipment are fully utilized. Uses required Personal Protective Equipment (PPE).


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