Laserfiche WebLink
Tom Schreiner - 2 - March 3, 1 87 <br /> Analysis of water levels recorded in LFH-2 indicates that water from the to <br /> quality aquifer is entering the better quality aquifer. During 1985-86 whe <br /> water quality in LFH-2 was deteriorating, water levels in the well increase . <br /> The increased water levels indicates that a higher head is present in the <br /> lower-quality aquifer than in the underlying better quality aquifer. <br /> Therefore, water from the lower-quality aquifer is driven by a hydraulic <br /> gradient into the better quality aquifer. <br /> In December, 1986, Coors Energy Company plugged well LFH-2. a concrete plug <br /> was placed from 57' to 5' below the ground surface. The well should have been <br /> completely filled with cement from its total depth to within ten feet of the <br /> land surface to meet the requirements of 4.07.3(2) . Bob Trousil stated tha <br /> Coors intended to fill the well entirely with cement. Subsequent conversation <br /> with Mr. Trousil indicated that Coors had followed the guidelines of the State <br /> Engineer's Office instead of the rules of the Mined Land Reclamation Board. <br /> To prevent further damage to the underlying water-bearing stratum Coors nee( s <br /> to properly abandon the well . Coors can completely fill the well with cement <br /> or other sealant from the bottom of the well to a depth twenty feet above the <br /> uppermost screened interval . <br /> Changes in Coors AHR which would improve its utility include: <br /> 1 ) Locating all monitoring wells on the potentio-metric map. <br /> 2) Indicating what aquifer each well monitors. <br /> The overall format and content of the AHR is acceptable. The graphic 1 <br /> presentation of annual data is extremely helpful . I would like to see the <br /> data presented for the new year on the save plot as the period of record. <br /> /vJ r <br /> cc: Robert G. Liddle <br /> 7852F <br />