Water level measurements are made in 1,892 selected wells in 73 counties, which currently (1985) comprise the Kansas groundwater observation-well network. Kansas ground-water observation-well network, 1985 These parameters indicated that well Je-23 (Jefferson County) is affected by coal-mine pumpage, well Bt-311 (Butler County) is periodically affected by strip mine activities, well Gr-118 (Greene County) and Mc-110 (McKean County exhibit unexplained fluctuations not desirable for an observation well, and 15 wells show no obvious problems or degradation that would affect their functionality to monitor natural water-level fluctuations. These wells were evaluated for functionality by analyzing historical water-level fluctuations, geophysical logs, single- well aquifer tests, and water-quality analyses. Nineteen wells were selected for evaluation on the basis of past questionable water-level responses.
#Aplf clover configurator series#
Therefore, it is necessary to periodically conduct a series of physical, chemical, and hydraulic tests to determine changes in the physical condition of the well and local land-use practices that may affect water-level response. The older the observation well, the greater the possibility of water levels being affected by physical deterioration of the borehole. Approximately 3 percent of the network wells have less than 5 years of record, 5 percent have 5 to 15 years of record, and 92 percent have greater than 15 years of record. Geological Survey projects, and some were drilled for other purposes and were no longer used. Some wells were drilled specifically for the observation-well program, some were drilled for other U.S. These wells attempt to monitor an aerial extent of 45,000 square miles and penetrate 39 geologic formations or water-bearing units of 14 physiographic provinces. Geological Survey operated 62 observation wells in 60 of Pennsylvania's 67 counties in cooperation with the Pennsylvania Department of Environmental Resources. The map was prepared in cooperation with State agencies of Massachusetts and Rhode Island.Įvaluation of selected wells in Pennsylvania's observation-well program as of 1993 Town and county boundaries were digitized from stable-base materials maintained by State agencies. State boundaries were generated from digital line graphs maintained by the U.S. The map was produced from a digital data base using a Geographic Information System. This infor- mation is presented in tabular form and includes town name, well number, aquifer material in which the well is located, and well depth below the land surface. The map also presents observation well information, which was obtained from the annual data report of the Massachusetts-Rhode Island District. The information is organized by construction, water supply, water quality, and statistical analysis. The map includes textual information describing the uses of observation-well data. These features are presented at a scale of 1:400,000 (map size is about 38 by 30 inches). County and town boundaries are shown on the map. The aquifer material (sand, till, or bedrock) in which a well is located is noted. The map shows the location of the 10 observation wells that have digital recorders and the 126 observation wells that are measured by local observers. The wells are identified by town name and well number. Geological Survey in Massachusetts and Rhode Island. This map shows the locations of the 136 observation wells from the observation-well network maintained by the U.S. Map showing location of observation wells in Massachusetts and Rhode Island
0 kommentar(er)
