Specifications include, but are not limited to: provide maintenance and repair services to irrigation systems throughout the District. ; Install, repair, and/or replace broken irrigation supply lines (main and lateral) Install, repair, and/or replace electric and hydraulic irrigation valves and valve assemblies 12 Install, repair, and/or replace hydraulic irrigation tubes Install, repair, and/or replace irrigation heads Install, repair, and/or replace irrigation system controllers Install, repair, and/or replace irrigation control wiring Troubleshoot and advise service and repair to irrigation well and booster pumps Test, service, repair, and/or replace back flow prevention valves When requested, perform spring start-up of irrigation systems When requested, perform winterization of irrigation systems