21 NCAC 23 .0603             SCHEDULING

(a)  An irrigation contractor shall recommend to the owner or his representative that:

(1)           the owner adjust the irrigation schedule and automatic controller to respond to the changing water requirements of the landscape;

(2)           the owner inspect irrigation controllers at least monthly to change irrigation frequencies or run times, as needed; and

(3)           the owner should avoid irrigation during rain events.

(b)  An irrigation contractor shall:

(1)           identify soil type, microclimates, and root depths of plants in each irrigation zone;

(2)           calculate the run-time of each irrigation zone to supply the needed water based upon precipitation rate of the sprinkler zones, the water-holding capacity of the soil, the changing weather conditions and the plant's water requirements; and

(3)           set initial run times and intervals to minimize runoff.

History Note:        Authority G.S. 89G-5;

Eff. July 1, 2011;

Pursuant to G.S. 150B-21.3A, rule is necessary without substantive public interest Eff. September 22, 2014;

Amended Eff. November 1, 2016.