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  1. 221
    Environmental setting of the upper Illinois River Basin and implications for water quality /
    Published 1999

    Government Document Book
  2. 222
    Low-level volatile organic compounds in active public supply wells as ground-water tracers in the Los Angeles physiographic basin, California, 2000 /
    Published 2001

    Government Document Book
  3. 223
    Water-quality assessment of the Potomac River Basin : basin description and analysis of available nutrient data, 1970-90 /
    by Blomquist, Joel D.
    Published 1996

    This item is not available through BorrowDirect. Please contact your institution’s interlibrary loan office for further assistance.
    Government Document Book
  4. 224
    Trace elements and organic compounds in streambed sediment and fish tissue of coastal New England streams, 1998-99 /

    Government Document Book
  5. 225
    Benthic invertebrate communities and their responses to selected environmental factors in the Kanawha River basin, West Virginia, Virginia, and North Carolina /
    by Chambers, Douglas B
    Published 2001

    Government Document Book
  6. 226
    Summary of and factors affecting pesticide concentrations in streams and shallow wells of the lower Susquehanna River basin, Pennsylvania and Maryland, 1993-95 /
    Published 2001

    Government Document Book
  7. 227
    Shallow ground-water quality adjacent to burley tobacco fields in northeastern Tennessee and southwestern Virginia, Spring 1997 /
    by Johnson, Gregory C
    Published 2001

    This item is not available through BorrowDirect. Please contact your institution’s interlibrary loan office for further assistance.
    Government Document Book
  8. 228
    Vertical gradients in water chemistry in the central High Plains aquifer, southwestern Kansas and Oklahoma panhandle, 1999 /
    by McMahon, Peter B
    Published 2001

    Government Document Book
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