• J. Water Shortage Response. The water and wastewater management plan shall include a drought and water-shortage response plan providing that, upon any drought or water-shortage declaration by the State of Iowa, the Iowa Department of Natural Resources, the County, or the serving water supplier, or upon any supplier-imposed conservation measure, the facility shall curtail water use before, and to a greater degree than, any restriction imposed on residential, agricultural, or essential public uses, following a tiered schedule ending at zero non-sanitary withdrawal. Compliance with the consumption ceiling of subsection (D) does not excuse curtailment under this subsection