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INTERPRETATION OF DOMESTIC WATER WELL PRODUCTION DATA AS A TOOL FOR DETECTION OF TRANSMISSIVE BEDROCK FRACTURED ZONES UNDER COVER OF THE GLACIAL FORMATIONS IN GEAUGA COUNTY, OHIO

Abstract Details

2011, MS, Kent State University, College of Arts and Sciences / Department of Earth Sciences.
The purpose of this study was to test the feasibility of identifying transmissive bedrock fracture zones and regional trend(s) of fracture under the blanket of glacial till in NE Ohio by mapping hydraulic conductivitiy estimated by using the residential water well production data provided in the Water Well Log and Drilling Reports. Water Well Log and Drilling Report data for private residential water wells were collected randomly amid the wells tapped within the Sharon Sandstone aquifer. Typical Well Log and Drilling Report includes a rudimentary description of the lithological column along with the following data from the well production test: (1) static water level, (2) time duration of pumping or bailing, (3) the rate of pumping or bailing and (4) water level at the end of the production test. The data was used to estimate hydraulic conductivity from the tests in water wells within the Sharon Sandstone aquifer in Geauga County, Ohio by applying Cooper and Jacob (1946) and Jacob’s (1950) approximation to Theis’ (1935) non-equilibrium radial flow equation. As all the wells in the study area were neither cased nor screened within the aquifer and the production test rates were low (27.25-109.02m3/day, or 5-20gpm), the well loss can be assumed negligible. The resulting hydraulic conductivity values followed quasi-log normal distribution with the geometric mean of 9.88x10-6 m/s. (2.80 ft/day). The hydraulic conductivity values were mapped and grouped into two distinct populations: the low values presumably corresponding to the primary porosity zones within the aquifer and high values assumed corresponding to the fractured zones. The mapped patterns of the higher hydraulic conductivity values clearly followed two distinct orientations: N340E and N440W. Trends on map of hydraulic conductivity correlated fairly well with the regional fracture pattern of the Allegheny Plateau Province, the trends of N210E and N570W obtained for Southwestern Pennsylvania and Northwestern West Virginia with equal amount of separation between the joint systems (Bench, Diamond and McCulloch, 1977). N340E also follows the alignment of glacial advance and retreat as a result of the stress loading and subsequent unloading during glaciation. The result of the research implies that the use of private residential water well data can serve as an alternate method for detecting regional transmissive fractures under the cover of glacial drift.
Yoram Eckstein, PhD (Advisor)
Abdul Shakoor, PhD (Committee Member)
Joseph Ortiz, PhD (Committee Member)
201 p.

Recommended Citations

Citations

  • Maharjan, M. (2011). INTERPRETATION OF DOMESTIC WATER WELL PRODUCTION DATA AS A TOOL FOR DETECTION OF TRANSMISSIVE BEDROCK FRACTURED ZONES UNDER COVER OF THE GLACIAL FORMATIONS IN GEAUGA COUNTY, OHIO [Master's thesis, Kent State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=kent1310763295

    APA Style (7th edition)

  • Maharjan, Madan. INTERPRETATION OF DOMESTIC WATER WELL PRODUCTION DATA AS A TOOL FOR DETECTION OF TRANSMISSIVE BEDROCK FRACTURED ZONES UNDER COVER OF THE GLACIAL FORMATIONS IN GEAUGA COUNTY, OHIO. 2011. Kent State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=kent1310763295.

    MLA Style (8th edition)

  • Maharjan, Madan. "INTERPRETATION OF DOMESTIC WATER WELL PRODUCTION DATA AS A TOOL FOR DETECTION OF TRANSMISSIVE BEDROCK FRACTURED ZONES UNDER COVER OF THE GLACIAL FORMATIONS IN GEAUGA COUNTY, OHIO." Master's thesis, Kent State University, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=kent1310763295

    Chicago Manual of Style (17th edition)