2016-10-20_PERMIT FILE - C1981035A (18)

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Table 2.1 Project Area Information GCC Energy's Proposed Groundwater Monitoring Well Sites Project Project Legal Description: Colorado State Lands Mar MW -2 = NE/4 NW/4 NE/4 of Section 36, Township 35 North, Range 12 May West, NMPM (scale aligned at southwest and southeast comers) Jul Private Lands MW -3 = SE/4 SE/4 NE/4 of Section 3, Township 34 North, Range 12 West, Nov NMPM Annual MW -4 = NW/4 SE/4 SE/4 and SW/4 NE/4 SE/4 of Section 34, Township 35 36.9 North, Range 12 West, NMPM 46.4 MW-HGA4 = SW/4 NE/4 SW/4 of Section 29, Township 35 North, Range I 65.9 11 West, NMPM Project UTMs MW -2 = N 4126781 m, E 755128 NAD 83 Zone 12 MW -3 = N 4124426 m, E 752352 I 46.8 MW -4 = N 4125602 m, E 752062 m 58.3 MW-HGA-4 = N 4127453 m, E 757639 m USGS 7.5' Series Hesperus, CO 1963 Quadrangle Maps: USGS Map Code 37108 -C1 -TF -024 ---- Mormon Reservoir, CO 1968 USGS Map Code 37208 -B2 -TF -024 Area of Potential Effect 0.23 acres (APE) i_ Total Area Surveyed 2.58 acres of the project. The La Plata River empties into the San Juan River near Farmington, NM. The San Juan River is a main tributary of the Southern Colorado River Basin. Current and historic land use in the project vicinity includes coal mining, irrigated agriculture, livestock grazing and ranching, woodcutting, hunting, and rural residential areas. 3.1 Climate, Geology, and Soils The nearest settlement for which historical climate records are available is from Fort Lewis (Station 053016) for the period 1948 to 2005 (WRCC 2016). Table 3.1 summarizes climatic data from the station. Average annual maximum temperature at the Fort Lewis climate station is 58.3° F and average annual minimum temperature is 28.1 ° F for the same period. The frost -free growing season lasts from 120 to 140 days (Pannell 1981). Average annual total precipitation is 18.13 inches and average total snowfall is 44 inches. April, May, and June are the driest months of the year, ranging from 0.68 inches in June to 1. 16 inches in April. July through October are the wettest months of the year, ranging from 1.78 inches in September to 2.24 inches in August (WRCC 2016). Table 3.1 Weather Data at the Fort Lewis, Colorado Climate Station from 1948 to 1993 (Station 053016) Average Jan Feb Mar Apr May Jun Jul AugSep Oct Nov Dec Annual Maximum 36.9 40.6 46.4 56.1 I 65.9 76.5 81.2 78.2 71.9 61.2 I 46.8 38.4 58.3 Temp. (F°) ---- i_ Minimum ^--- �- 7 � ;---.___ _ 9.5 12.7 ! 19.3 25.9 I 33.0 40.4 48.4 47.2 1 39.8 i 30.4 19.5 11..4 ! 28.1 Total Precip. 1 166 1.36 1.50 1.16 1.02 0.682.05 2.24 1.18 1.91 1 1.42 1.35 18.13 Total f 0- -1 -i--5 Snoll in wFa 12 14 I 8 1 1 0 0 0 I 0 O I i--3- An Intensive CRI for GCC Energy's Proposed Groundwater Monitoring Wells on State and Private Lands in La Plata County, CO SEAS 16-098 October 2016