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.