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Modifying Ohio’s DRASTIC ground water potential pollution model to account for karst limestone voids and sinkholes

Warren, Rachel H Pauline
http://rave.ohiolink.edu/etdc/view?acc_num=osu1556987810146683

Abstract Details

2019, Master of Science, Ohio State University, Civil Engineering.
In the 30 years after the publication of the DRASTIC model for groundwater sensitivity analysis, a number of researchers have revised or altered the model to better suit regional needs and geologic conditions. DRASTIC; initially developed in and calibrated for Ohio was built as a first step model with readily available dataset inputs, allowing for communities of all sizes to generate their own relative pollution potential maps, decreasing costs associated with hiring a consulting firm to complete this work. However, the simplicity that makes DRASTIC accessible for small community land use zoning also results in an overgeneralization of complex geologic conditions. Moreover, specialized updates to the model have not been incorporated into the accepted text, and in its present version and the model cannot sufficiently account for increases in pollution potential resulting from calcium carbonate limestone (karst) voids in the geologic profile. This research will identify the hypothetical effect of altering DRASTIC by comparing its outputs to karst calibrated models, then these findings will be incorporated into a new modified version of DRASTIC that will be used to generate karst-sensitive pollution potential maps. Delaware County, Ohio will be used as a case study due to its well-known karst bands and the existence of a DRASTIC pollution potential map that can be compared to this modified DRASTIC output as verification of concept.
John Lenhart, Ph.D. (Advisor)
162 p.
Civil Engineering; Environmental Engineering; Geology; Hydrology
Groundwater Pollution Potential; DRASTIC; karst

Recommended Citations

Citations

  • Warren, R. H. P. (2019). Modifying Ohio’s DRASTIC ground water potential pollution model to account for karst limestone voids and sinkholes [Master's thesis, Ohio State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=osu1556987810146683

    APA Style (7th edition)

  • Warren, Rachel. Modifying Ohio’s DRASTIC ground water potential pollution model to account for karst limestone voids and sinkholes. 2019. Ohio State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=osu1556987810146683.

    MLA Style (8th edition)

  • Warren, Rachel. "Modifying Ohio’s DRASTIC ground water potential pollution model to account for karst limestone voids and sinkholes." Master's thesis, Ohio State University, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=osu1556987810146683

    Chicago Manual of Style (17th edition)

osu1556987810146683
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© 2019, all rights reserved.
This open access ETD is published by The Ohio State University and OhioLINK.