Laserfiche WebLink
which was 0.42 inches less than the 1951-1980 average. This decrease was primarily due to <br />an unusually dry May through July. Snowpack runoff, es estimated by totalling November <br />through April precipitation values, was 9.49 inches, which was 1.21 inches above the <br />1951-1980 average. This is the highest snowpack value since 1986. <br />Ground Water <br />Water Levels. 4ater levels for all wells that are in the current monitoring program are <br />presented in Appendix C. For these wells, water levels gathered since 1980 are presented. <br />In this appendix, when a well is dry, the total depth of the well is given in the "Depth <br />to Water" column. This is to aid in the statistical evaluation of eater level data. <br />Hydrographs for each well are presented prior to the water level report for each <br />respective cell in the same appendix. By presenting up to 14 years of data, trends <br />related to seasonal and annual variability are more clearly evident. Water level <br />measurements are taken with a Soil Test M-scope, or a Slope Indicator Water Level <br />Indicator, or in the case of a few shallow alluvial wells, directly from a steel tape. <br />Site information, including sampling frequency for WY 1993, is presented in Table 3 • <br />(Appendix A), Summary of Cround Water Monitoring Wells. For the sake of brevity, the <br />GW-S2W prefix that precedes most well names, will be dropped throughout this report. As <br />an example, Well GW-52W-6A1 will be referred to as Well bA1. <br />Alluvium. The alluvial monitoring Wells 6A1, bA2, 6A3, 6A4, 7A1, 7A2, SA1, and 9A1 are <br />located along Hubberson and Watering Trough Gulches. All wells except 9A1 exhibit typical <br />seasonal variations, i.e., shallow after the spring recharge, deepening towards the fall. <br />Well 9A1 exhibited increasing (i.e., shallower) water levels the last three years. The <br />area surrounding this well (approximately one mile southwest of the permit boundary) has <br />become marshy beginning in the summer of 1991. Water levels at Wells 6A1 to 6A3 are <br />higher than they would normally be in Nay through July of the past five years due to <br />recently introduced (Nay, 1989) irrigation in that area. One alluvial well, 19A, is <br />situated approximately one-half mile downstream of the NPDES 006 pond on a tributary to <br />Hubberson Gulch. It also exhibits seasonal variations typical of previously mentioned <br />monitoring cells. <br />Eight additional alluvial wells were added to the monitoring program in October, 1991. <br />_~~uell 20A is situated immediately above [he NPDES 005 Pond end has been dry since <br />2 <br />