(a) An irrigator shall prepare a site-specific irrigation plan for each new irrigation system. The irrigation plan must be on the job site during the installation of the irrigation system and must be consulted for installation requirements.
(b) The irrigation plan must show that the irrigation system provides complete coverage of all areas to be irrigated. If there are areas on the site that are not to be irrigated, they must be clearly identified on the irrigation plan.
(c) All irrigation plans used for construction must be drawn to scale. The plan must include, at a minimum, the following information:
  (1) the irrigator's seal, signature, and date of signing;
  (2) all major physical features in accordance with subsection (b) of this section including, but not limited to, property lines, streets, sidewalks, buildings, fences, flower bed lines, and the boundaries of the areas to be watered;
  (3) a North arrow;
  (4) a legend showing the symbols used in the irrigation plan and an accurate description of what the symbol represents;
  (5) the zone flow measurement for each zone which includes the zone/controller station number and the zone valve size;
  (6) location and type of each:
    (A) controller;
    (B) sensor (for example, but not limited to, rain, moisture, wind, flow, or freeze);
  (7) specifications for all irrigation system components to include, but not limited to, location, type, size, manufacturer, model number, operating pressure, flow range, radius of throw;
  (8) the scale used; and
  (9) the design pressure.
(d) During the installation of the irrigation system, changes from the original plan may be authorized by the licensed irrigator if they are clearly documented in red ink on the irrigation plan and the change does not:
  (1) diminish the operational integrity of the irrigation system; and
  (2) violate any requirements of this chapter.
(e) All changes to the irrigation plan shall be documented as an as-built drawing.

Source Note: The provisions of this §344.61 adopted to be effective January 1, 2009, 33 TexReg 5713; amended to be effective July 26, 2020, 45 TexReg 4986