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[en] In Alberta, the presence of carbon dioxide, methane or hydrogen sulphide in water wells is common. The aim of this paper is to provide information to private owners of water wells. It is stated in this document that spurting taps or a gurgling noise indicate that there is gas in your water well; you can determine which gas it is by collecting a sample and having it analyzed. In order to address the risks associated with the presence of gas in the water well, the well pit or well pump should be properly vented to avoid any oxygen deficiency in the atmosphere. It is also possible to get rid of the gas by lowering the pump intake. It is also mentioned that the development of coalbed methane in Alberta should not contaminate private wells since regulations aimed at avoiding this have been implemented. This paper provided useful information to help private owners manage the presence of gas in their water wells.
[en] Preliminary results of spontaneous gas display from drilled wells in Estonia are reported. These wells are drilled into the cambrian-vendian aquite systems. The spontaneous gas, from 0.011 to 2.941 m3/m3 and the concentration of radon in spontaneous gas, from 9.3 to 93.2 Bq·l-1.The general concentration of radon in water is estimated to be about 125 Bq·l-1. (author).tab., 2 figs
[en] The cause of the investigation is that recent research has reported on the health risks associated with high radon content in drinking water. Different types of water treatment equipment, normally installed for other types of non-wanted elements, were tested for their ability to remove radon. The measurements show that the only types of equipment that reduces radon content in water to a high degree are osmosis filters and radon separators. Of these two, the radon separator is judged to be the only one to have the capacity to treat the volumes needed in a house. The reduction of radon is more than 85 percent for the equipment specially constructed to reduce radon in water. There is however no experiences today about the technical lifetime or the long time performance of this equipment
[en] During 2003, the upgradient well 299-W26-7 went dry and one new groundwater monitoring well was installed downgradient (well 299-W26-14) of the 216-S-10 pond and ditch. This ICN updates the groundwater monitoring wells for the 216-S-10 pond and ditch and adds a revised well location map to the plan
[en] This document is an integrated monitoring plan for the groundwater project and contains: well and constituent lists for monitoring required by the Atomic Energy Act of 1954 and its implementing orders (''surveillance monitoring''); other, established monitoring plans by reference; and a master well/ constituent/frequency matrix for the entire Hanford Site
[en] Quality characteristics of 30 samples collected from dug wells, open wells and hand pumps of some urban and adjoining areas of Peshawar (Pakistan) were chemically evaluated and the results were compared with WHO potable water quality standards. The studies indicate an increasing trend in magnesium content than calcium. These studies reveal that magnesium in 18 out of 30 samples is higher than calcium as compared to the previously reported results, where quality characteristics of tube well waters were undertaken. Tube well waters reported in part-I of the studies were found to be less polluted compared to the well water in the present studies. These is due to the fact that wells are shallow (<40 feet ) compared to tube wells (= 350 feet)and are therefore more vulnerable to pollution than tube wells. The general public opinion about the water quality has also been discussed. (author)
[en] This 2017 Idaho National Laboratory Water Use Report and Comprehensive Well Inventory (Revision 26) provides water use information for production and potable water wells at the Idaho National Laboratory (INL) Site for Calendar Year 2017. It also provides detailed information for new, modified, and decommissioned wells. Fourteen new wells were drilled and completed in Calendar Year 2017. No wells on the INL Site were decommissioned in Calendar Year 2017. However, an offsite area near Box Canyon that contained instrumented boreholes used for research was decommissioned. Detailed construction and decommissioning information and location maps for the wells are provided. This report is being submitted in accordance with the Water Rights Agreement between the State of Idaho and the United States, for the United States Department of Energy (dated 1990), the subsequent Partial Decree for Water Right 34-10901 issued June 20, 2003, and the Final Unified Decree issued August 26, 2014.
[en] We studied a group of deep-wells in the townships of Crato and Juazeiro do Norte, in the Cariri region, in the South of Ceara State. In this region, which is of high economic importance for the State, exclusively underground-water is used for public water supplies. Hydrogeologic conditions are complicated and deep wells produce waters of mixed origin which are difficult to be characterized. Using carbon-14 concentrations (expressed in pMC) and electric conductivity (CE, measured in μS/cm) we can distinguish alluvial waters from those originating from deeper aquifers (Rio da Batateira e Missao Velha). Alluvial waters exhibit a positive correlation between CE and pMC. For Crato, CE=30.3 pMC - 3185 (R=0.996) with pMC higher than 100 and CE ranging from 88 to 497 μS/cm was obtained, Juazeiro do Norte wells gave CE = 0.98 pMC + 100.31 (R=0.84), with pMC from 66.6 to 124.8 and CE from 162 and 226 μS/cm. Deep aquifer samples show a negative correlation between CE and pMC. (author)