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(4) a legend; <br />(5) the zone flow measurement for each zone; <br />(6) location and type of each: <br />(A) controller; and <br />(B) sensor (for example, but not limited to, rain, moisture, wind, flow, or freeze); <br />(7) location, type, and size of each: <br />(A) water source, such as, but not limited to a water meter and point(s) of connection; <br />(B) backflow prevention device; <br />(C) water emission device, including, but not limited to, spray heads, rotary sprinkler <br />heads, quick- couplers, bubblers, drip, or micro - sprays; <br />(D) valve, including but not limited to, zone valves, master valves, and isolation valves; <br />(E) pressure regulation component; and <br />(F) main line and lateral piping. <br />(8) the scale used; and <br />(9) the design pressure. <br />See. 25 -48. Design and Installation: Minimum Requirements. <br />(a) No irrigation design or installation shall require the use of any component, including the <br />water meter, in a way which exceeds the manufacturer's published performance limitations for <br />the component. <br />(b) Spacing. <br />(1) The maximum spacing between emission devices must not exceed the manufacturer's <br />published radius or spacing of the device(s). The radius or spacing is determined by referring <br />to the manufacturer's published specifications for a specific emission device at a specific <br />operating pressure. <br />(2) New irrigation systems shall not utilize above - ground spray emission devices in <br />landscapes that are less than 48 inches not including the impervious surfaces in either length <br />or width and which contain impervious pedestrian or vehicular traffic surfaces along two or <br />more perimeters. If pop -up sprays or rotary sprinkler heads are used in a new irrigation <br />system, the sprinkler heads must direct flow away from any adjacent surface and shall not be <br />installed closer than four inches from a hardscape, such as, but not limited to, a building <br />foundation, fence, concrete, asphalt, pavers, or stones set with mortar. <br />(3) Narrow paved walkways, jogging paths, golf cart paths or other small areas located in <br />cemeteries, parks, golf courses or other public areas may be exempted from this requirement <br />if the runoff drains into a landscaped area. <br />(c) Water pressure. Emission devices must be installed to operate at the minimum and not above <br />the maximum sprinkler head pressure as published by the manufacturer for the nozzle and head <br />12 <br />