Main lines in common property of larger multi-unit developments follow WSA 03 or this standard; if this standard, the development is zoned so a shut-off affects a limited number of lots with isolation valves at set intervals, mains form a ring or have flushing points at dead ends, and fire hydrants are located to AS 2419.1 (2003 Section 15).
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.