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14 <br />OWASA Water Conservation Standm~ds <br />March 26, 2009 <br />Page 9 of 12 <br />lV. C. Disasters and Catastrophic Equipment or Plant Failure Shortage <br />Any other circumstances, including service losses caused by equipment or facility failure, human <br />error, deliberate act, weather, or other natural disaster, which constrain OWASA's water supply, <br />treatment, or distribution capacity to less than that reasonably needed. by its customers, shall <br />constitute a Water Supply' Shortage up to and including a Water Supply Emergency, requiring <br />immediate action by OWASA. . <br />Article V -Required Actions Under Water Supply Shortage or Emergency <br />Conditions <br />In the event of a water supply shortage, OWASA shall, using its best professional judgment, <br />determine which of the following stages is the most appropriate response to the estimated level <br />of risk considering factors in IV.A above. <br />V. A. Stage Oue~(1) Water Shortage <br />In the event that OWASA declares a Stage One Water Shortage, OWASA shall advise the <br />Mayors of Canboro and Chapel Hill and the Chair of the Orange County Board of <br />Commissioners of its declaration and shall request that they issue Proclamations of a Stage One <br />Water Supply Shortage. Upon OWASA's declarafion of a Stage One Water Shortage, the <br />following actions shall be taken with the goal of reducing overall water demand by ten (l0) <br />percent: <br />] . Spray irrigation of turf grass using OWASA-supplied potable water shall not occur more <br />than one day per week with a maximum of one-half inch of water applied to plant <br />material in any given week. Odd-numbered properties shall be allowed to -spray irrigate <br />only on Tuesdays; even numbered properties shall be allowed to spray irrigate only on <br />Thursdays. Spray irrigation of turf grass shall occur only between the hours of 6:00 p.m: <br />and 10:00 a.m. Owners of public purpose athletic fields, recreational fields, and/or public <br />purpose botanical sites shall not be subject to the limitations of this subsection V.A.I if <br />those facilities are operated in compliance with an OWASA-approved Water <br />Conservation Plan. <br />2. Spray irrigation of non-turf plant materials may occur up to three days per week as <br />provided under the year-round requirements specified in Section Ill.A.l.a. <br />3. Irrigation of non-turf plant materials by underground, drip irrigation, micro spray, low <br />precipitation bubblers, soaker hose systems with automatic shutoffs, or by hand held <br />hoses or watering cans may occur at any time or frequency. <br />Notwithstanding the restrictions specified in Sections V.A.1 through V.A.3, the protection of <br />public health, safety, and welfare may, under special circumstances, require the use of limited <br />amounts of OWASA-supplied potable water for such purposes as washing out garbage trucks, <br />cleaning up hazardous or other materials. Such uses shall be permitted during declared Water <br />