REP14825 - Laserfiche WebLink

Home Browse Search

The mean temperature is 51.5° F, January and July having the lowest and highest temperature respectively. The project area is approximately 1,650 feet higher in elevation than the Trinnidad Airport and can be considered to have a somewhat lower mean temperature and higher average precipitation. Generally, soils of the area are shallow and coarse-grained being derived from the underlying sandstones and shales. Bedrock exposures are common and scattered throughout the area. The valley bottoms are underlain by alluvial deposits which are also coarse-grained, however, are deeper compared to soils of the mountain slopes. Vegetation varies from riparian in the valley bottoms to pinyon-juniper, oak brush, and pine cover on the side slopes. Vegetation cover ranges from 100% in the valley bottoms to near 0% on the steeper side slope rock outcrop areas. 1.2 Station Descriptions To fully assess the hydrologic balance of surface and ground water resources in the area of the two mines, a monthly sampling program was initiated in February, 1984. The following are descriptions of the sampling locations utilized during the program. These stations correspond to those shown in Figure 4-1. PRS-1 Located on the Middle Fork of the Purgatoire River above the surface facilities of the New Etk Mine. This station was selected to assess stream quality and flow above mining activities. PRS-2 Located on the Purgatoire River below the New Elk and above the Golden Eagle surface facilities. This station was selected to assess stream quality and flow relating to potential effects of the New Elk Mine and establish baseline data above the Golden Eagle Mine. PRS-3 Located on the Purgatoire River below the Golden Eagle surface facilities. This station was established to assess potential effects of mining on stream quality and flow. MDGE-1 Located in Ciruela Canyon approximately one-third mile from the confluence with the Purgatoire River. This station was established to