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Section 785.19 (c) Continued. Water Quantity. Stream-flow has been measured in the study area by by the United States Geological Survey at gaging station number 09243800 on Foidel Creek, north of Pinnacle Peak. USGS gaging hydrographs of these data are presented in Table 13, USGS Gaging Station Measurements. As these data indicate, water availability in the study area is erratic from year to year and continuous flow occurs only two months out of the year in response to snowmelt. The average annual flow measured at USGS Gaging Station 09243800 is about 245 acre-feet. This gaging station has a 5,440 acre contributing watershed in Eckman Park, including the study area. The amount of available water in Eckman Park for the entire year is only 0.05 acre-feet per acre of watershed. This is much less than the two acre-feet of water per acre from May 1st to September 15th required for flood irrigation in the OSM Technical Guide- line. Therefore, water quantity in the Eckman Park study area is inadequate for flood irrigation. • Aerial Photograph Analysis Aerial photographic coverage of the mine plan, adjacent, and general area was provided by OSM personnel in Denver, Colorado. A sample of three color infrared aerial photographs with interpre- tations by a private consultant is provided in Exhibit 12, Color Infrared Aerial Photography. The photographs are at a scale of approximately 1:34,000 and were taken in September, 1978. The three photographs cover the mine plan and adjacent area as follows: Photo No. 616: Energy Mine No. 1 and Middle Creek Photo No. 630: Energy Mine No. 2 and Fish Creek Photo No. 632: Eckman Park Mine and Foidel Creek The photographs show the fall season differences in vegetative growth between upland and valley floor areas. These photos, along • with a set of black and white aerial photos giving sterographic 785-15