Laserfiche WebLink
• water to the Dissolution Surface with lowest potentiometric water level and <br />removing water from the B-Groove. Following recompletion, the wells not effected <br />by mining activity are apparently attempting to reach equilibrium following ten <br />years of commingling. The up-dip, A-Groove well shows direct correlation with <br />pumpage similar to down-dip A-Groove well. It is interesting that the B-Groove <br />well at up-dip site has not responded to pumpage, similarly to down-dip site. <br />Excluding water well and minor stabilization following recompletion, no mining <br />effects were noted in water level or quality. <br />Dedicated Monitoring Wells Down-Gradient <br />Wells established to monitor down-gradient conditions are: <br />Wells A uif r <br />• Na26-IRI-4 A-Groove <br />Na26-IRI-6 B-Groove <br />Na26-IRI-7 Dissolution <br />Na26-IRI-8 Perched <br />Na26-IRI-5 Perched <br />The down-gradient wells were recompleted in August and water quality sampler <br />installed in August -September, 1990. Monthly water quality results indicate a <br />mixture of water across all four aquifers which does not compare to other <br />monitoring sites. This location, the maxi-pad, had an open hole and wells may <br />have commingled aquifers for up to ten years. Note the final well (IRI-5) on this <br />site was recompleted July, 1991. After a period of time, the aquifer data is <br />expected to reflect characteristics of aquifers at other monitoring locations. Field <br />. water quality analysis indicated <1,000 conductivity for Perched and >20,000 <br />83 <br />