Iowa/Nebraska Light & Power FMGP

(a) The Property shall not be used for residential, recreational, child care, or school use.(b) Existing remedial systems to control and/or abate vapor intrusion of Site Contaminants into any existing enclosed buildings at the Property must be operated and maintained in accordance with standards for protectiveness of human health and the environment. (c) Any new construction of enclosed buildings at the Property must prevent, or include remedial systems to control and/or abate, vapor intrusion of Site Contaminants into any such new construction at the Property, and must be operated and maintained in accordance with standards for protectiveness of human health and the environment. (d) Extraction and use of the groundwater underlying the Property, except for investigation or remediation approved by EPA, is prohibited. (e) Except where such excavation is necessary to prevent or address a substantial previously unknown threat to human health or the environment, including without limitation, a natural gas pipeline leak or an emergency where electrical service must be restored to NPPD's customers, including the City of Norfolk, NPPD, the holder of the Property, will provide EPA five days prior written notice prior to the commencement of any digging, drilling, excavating, constructing, earth moving, or other land disturbing activities that occur below an existing building, renovation or demolition of existing structures on the Property; provided, however, that so long as NPPD is the holder of the Property, NPPD shall only be required to provide such notice to EPA where such activities extend below the depth of five feet below the ground surface.

(a) The Property shall not be used for residential, recreational child care or school use. (b) Existing remedial systems to control and/or abate vapor intrusion of Site Contaminants into any existing enclosed buildings at the Property must be operated and maintained in accordance with standards for protectiveness of human health and the environment. (c) Any new construction of enclosed buildings at the Property must prevent, or include remedial systems to control and/or abate, vapor intrusion of Site Contaminants into any such new construction at the Property, and must be operated and maintained in accordance with standards for protectiveness of human health and the environment. (d) Extraction and use of the groundwater underlying the Property, except for investigation or remediation approved by EPA is prohibited. (e) Except where excavation is necessary to prevent or address a previously unknown threat to human health or the environment, including without limitation a natural gas pipeline leak, any digging, drilling, excavating, constructing, earth moving or other land disturbing activities that extend below the depths of contaminated soil excavated during the environmental removal action conducted at the Property, as depicted on the Removal Action Site Map attached to this Environmental Covenant as Exhibit A, are prohibited without five days prior written notice to EPA.