700 fig8 that forms a lip sufficiently dimensioned to span the edges of base frame 680 this allows compartment 640 to fit snugly on base frame 680 during installation as shown in fig9 in an embodiment lid 610 has an underframe 614 that has a sloped profile on its rear edge 620 this rear edge 620 functions as a hinge to allow lid 610 to rotate backward while still placed upon compartment 640 directing attention to fig1 compartment 640 provides a convenient space in which numerous electronic and mechanical enhancements to a conventional irrigation valve manifold can be stored for example on the left side of compartment 640 battery 642 can be included to power devices located within vault 600 communication module 644 such as a radio receiver or telecommunication receiver for use with remote control of irrigation valves inside vault 600 communication module 644 can also include a transmitter for reporting functions and malfunctions occurring within vault 600 thermometer 646 can be located on lid 610 to provide temperature information that is used to control operation of irrigation valves located within vault 600 light bulb 648 can be located underneath lid 610 or lower such as on an interior wall of compartment 640 or even on an interior wall 640 to provide illumination as well as to prevent valves from freezing during cold conditions solar panel 650 can be located on lid 610 to charge batter 642 solar panel 650 can also be located on a telescoping pole that elevates solar panel above lid 610 or positions solar panel 650 to an optimal azimuth or elevation for charging battery 642 moisture sensor 652 can also be located on lid 610 and is.