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-19- Investigation of Steven Gulch" in Volume 2 of the 1981 application) provide the appropriate financial or regulatory demonstration. Therefore, both areas identified as alluvial valley floors in Stevens Gulch and along the North Fork of the Gunnison are exempt from the requirements of Section 34-33-114(2)(e)(I). The permit revision area and the potential alluvial valley floor in adjacent Terror Creek is not covered by the grandfather provision, and will be discussed separately later. Although exempted from Section 34-33-114(2)(e)(I), the applicant must still comply with Section 34-33-120(2)(j)(VI) for all activities which involve surface operations or surface impacts incident to the underground portions of the mine. To demonstrate compliance, the applicant must identify the essential hydrologic functions of an alluvial valley floor and submit a plan demonstrating that the essential hydrologic functions can be preserved throughout mining or restored after mining. The essential hydrologic functions of the AVF along the North Fork of the Gunnison are both flood irrigation and subirrigation. The lower levels of this AVF are subirrigated naturally. However, the upper portions which exhibit some subirrigation may be attributed to recharge from adjacent irrigation ditches and canals. In these areas flood irrigation is the essential function. The operator will restore the essential hydroloyic functions of this alluvial valley floor at the completion of mining. The loadout facilities will be dismantled and hauled off the site. The area will be regraded to restore irrigation ditches and original premining contours. To verify that the site has been restored to its premining function of flood irrigable lands, the Division is imposing the following monitoring stipulation: Stipulation No. ONE YEAR AFTER THE COMPLETION OF RECLAMATION ACTIVITIES AT THE LOADOUT, THE OPERATOR SHALL COMPARE THE SOIL CHARACTERISTICS OF THE RECLAIMED AREA WITH THE ADJACENT UNDISTURBED ORCHARD AREAS TO VERIFY THAT THE HYDRULOGIG FUNCTION OF FLOOD IRRIGABILITY HAS BEEN RESTORED. SUCH CUMPHRISON SHOULD BE IN THE FORM OF INFILTRATION, PERMIEABILITY AND TEXTURE STUDIES. With the acceptance of the above stipulation, the Division finds that the essential hydrologic functions of the alluvial valley floor along the North Fork of the Gunnison will be restored after mining. The alluvial valley floor assumed to exist adjacent to the permit revision area along Terror Creek is not grandfather and therefore is protected under the full scope of the Act and Regulations.