North Carolina Administrative Code
Title 21 - OCCUPATIONAL LICENSING BOARDS AND COMMISSIONS
Chapter 23 - IRRIGATION CONTRACTORS'
Section .0400 - IRRIGATION DESIGN MINIMUM STANDARDS
Section 23 .0401 - SYSTEM DESIGN OBJECTIVES AND REQUIREMENTS

Universal Citation: 21 NC Admin Code 23 .0401

Current through Register Vol. 39, No. 6, September 16, 2024

(a) An irrigation contractor shall design an irrigation system so that it uniformly distributes water.

(b) When designing an irrigation system, an irrigation contractor shall consider the following criteria:

(1) the soil type;

(2) the slope;

(3) the plant root depth;

(4) the water requirements of different plants;

(5) microclimates;

(6) weather conditions;

(7) the quantity, quality, and delivery pressure of the water source; and

(8) the long-term management of the system and the landscape it serves.

(c) When designing an irrigation system, an irrigation contractor shall select equipment components and installation techniques that meet state and local code requirements and site requirements.

(d) When designing an irrigation system, an irrigation contractor shall to ensure that the irrigation system is designed to uniformly distribute the water, conserve and protect water resources, and function well as a component of the overall landscape by doing the following:

(1) obtaining direct knowledge of site conditions by visiting it. Viewing and relying solely on plot plans to generate a design is not adequate preparation for designing an irrigation system.

(2) producing a design that meets all applicable state and local codes, including plumbing and electrical codes.

(3) when allowable by law, specifying in the plan the manufacturer, model, type, and size of all components to eliminate ambiguity during construction and to facilitate management of the system.

(4) selecting pipe, electrical wire, and other materials based on design parameters, environmental conditions, code requirements, and long-term management requirements of the system.

(5) designing the irrigation system to minimize installation and maintenance difficulties.

(6) selecting and placing shrubs, trees, and groundcover sprinkler and microirrigation components according to the expected size of larger specimen plants through a minimum three-year establishment period for shrubs and 10-year establishment period for trees.

Authority G.S. 89G-5;
Eff. August 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.

Disclaimer: These regulations may not be the most recent version. North Carolina may have more current or accurate information. We make no warranties or guarantees about the accuracy, completeness, or adequacy of the information contained on this site or the information linked to on the state site. Please check official sources.
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.