Dine, J. R., Adamski, J. C., and Duigon, M. T., 1995, Water resources of Howard County, Maryland: Maryland Geological Survey,            Bulletin 38, 128 p.

Dine, J. R., Tompkins, M. D., and Duigon, M. T., 1985, Ground-water and surface-water data for Frederick County, Maryland:                     Maryland Geological Survey, Basic Data Report No. 15, 240 p.

Duigon, M. T., Ground-water study 2, in Richards, D. B., (editor), Ground-Water Information Manual: Coal Mine Permit Applications,         Volume II: U. S. Department of the Interior, Office of Surface Mining Reclamation and Enforcement, p. 37-80.

Duigon, M. T., 1991a, Effects of borehole enlargement, development and stimulation, and drilling inclined collectors on yield of a well         constructed in fractured rock [abst.]: Geological Society of America, Abstracts with Programs 23(1):24.

———1991b, Construction and development methods used to optimize the yield of a water well drilled in fractured crystalline rock             [abst.]: Ground Water, v. 29, no. 5, p. 754-755.

———1992, Effects of development and novel construction techniques on yield of a water well drilled in crystalline rock,                             Westminster, Maryland: Maryland Geological Survey, Report of Investigations No. 56, 53 p.

———2001, Karst hydrogeology of the Hagerstown Valley, Maryland: Maryland Geological Survey, Report of Investigations No. 73,         128 p.

Duigon, M. T., and Bolton, D. W., 2003, Formation geochemistry at two boreholes and its bearing on radium content of ground                 water, Anne Arundel County, Maryland: Maryland Geological Survey, Open-file Report 2003-02-15, 34 p.

Duigon, M. T., Bolton, D. W., and Cooper, B. F., 2000, The influence of ground water on nitrate loads of streams in the upper Rock             Creek basin, Montgomery County, Maryland: Maryland Geological Survey, Open-File Report 2000-02-13, 53 p.

Duigon, M. T., and Cooper, B. F., 1999, Impact of a public water-supply well on availability of ground water to neighboring domestic         wells near Bel Air, Maryland: Maryland Geological Survey, Interim Technical Report, 26 p.

Duigon, M. T., and Crowley, W. P., 1983, Reisterstown quadrangle: Geology and Hydrogeology: Maryland Geological Survey,                     Hydrogeologic Atlas No. 7, 6 p., 6 maps, scale 1:24,000 and 1:36,000.

Duigon, M. T., and Dine, J. R., 1987, Water resources of Frederick County, Maryland: Maryland Geological Survey, Bulletin 33, 106         p.

Duigon, M. T., and Dine, J. R., 1991, Water resources of Washington County, Maryland: Maryland Geological Survey, Bulletin 36,             109 p.

Duigon, M. T., Dine, J. R., and Tompkins, M. D., 1989, Ground-water and surface-water data for Washington County, Maryland:                 Maryland Geological Survey, Basic Data Report No. 18, 273 p.

Duigon, M. T., and Hilleary, J. T., 1981a, Hampstead quadrangle: Hydrogeology: Maryland Geological Survey, Hydrogeologic Atlas         No. 12, 6 p., 5 maps, scale 1:24,000.

Duigon, M. T., and Hilleary, J. T., 1981b, Hereford quadrangle: Hydrogeology: Maryland Geological Survey, Quadrangle Atlas No.             18, 8 p., 5 maps, scale 1:24,000 and 1:36,000

Duigon, M. T., Otton, E. G., and Hilleary, J. T., 1981, Lineboro quadrangle: Hydrogeology: Maryland Geological Survey, Quadrangle         Atlas No. 13, 6 p., 5 maps, scale 1:24,000.

Duigon, M. T., and Smigaj, M. J., 1985, First report on the hydrologic effects of underground coal mining in southern Garrett County,         Maryland: Maryland Geological Survey, Report of Investigations No. 41, 99 p.

Duigon, M. T., Tompkins, M. D., and Cooper, B. F., 1995a, Sykesville quadrangle: Maryland Geological Survey, Hydrogeologic                 Atlas No. 24, 6 p., 6 maps, scale 1:24,000. and 1:36,000.

———1995b, Woodbine and Damascus quadrangles: Maryland Geological Survey, Hydrogeologic Atlas No. 25, 6 p., 6 maps,                 scale 1:24,000. and 1:36,000.

———1995c, Clarksville and Sandy Spring quadrangles: Maryland Geological Survey, Hydrogeologic Atlas No. 26, 6 p., 6 maps,             scale 1:24,000. and 1:36,000.

Ruhe, R. V., Duigon, M. T., and Risser, D. W., 1977, Environmental baseline study of ground and surface waters, Wilson Field site,             Knox County, Indiana (AMAX Coal Company): Water Resources Research Center, Indiana University, Bloomington, Indiana,             101 p.