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Aquatic Community, Hydrologic, And Water-Quality Data For Apopka, Bugg Rock, And Wekkiva Springs, Central Florida, 1931-2006

Aquatic community, hydrologic, and water-quality data for Apopka, Bugg Rock, and Wekkiva Springs, central Florida, 1931-2006 [electronic resource]
Walsh, Stephen J
Rev. and reprinted 2007
Reston, Va. : U.S. Geological Survey, 2007
vi, 50 p. : digital, PDF file

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Hydrology Of Polk County, Florida

Hydrology of Polk County, Florida [electronic resource]
Spechler, R. M

Reston, Va. : U.S. Dept. of the Interior, U.S. Geological Survey, 2007
vi, 114 pages : digital, PDF file

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Nutrient Sources Within The Upper Mississippi River Basin, Minnesota And Wisconsin, 1991-93

Nutrient sources within the Upper Mississippi River Basin, Minnesota and Wisconsin, 1991-93
Kroening, Sharon E

[Reston, Va.] : U.S. Dept. of the Interior, U.S. Geological Survey, [1998]
[4] p. : col. ill., maps (some col.) ; 28 cm

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Streamflow And Water-Quality Characteristics At Selected Sites Of The St. Johns River In Central Florida, 1933 To 2002

Streamflow and water-quality characteristics at selected sites of the St. Johns River in central Florida, 1933 to 2002
Kroening, Sharon E

Reston, Va. : U.S. Geological Survey, 2004
viii, 102 p. : col. ill., col. maps ; 28 cm

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Variability Of Nutrients In Streams In Part Of The Upper Mississippi River Basin, Minnesota And Wisconsin

Variability of nutrients in streams in part of the Upper Mississippi River Basin, Minnesota and Wisconsin
Kroening, Sharon E

[Mounds View, Minn.?] : U.S. Geological Survey, 1997
1 folded sheet (4 unnumbered pages) : color illustrations, color maps ; 28 cm

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Water Quality And Evaluation Of Pesticides In Lakes In The Ridge Citrus Region Of Central Florida

Water quality and evaluation of pesticides in lakes in the Ridge citrus region of central Florida [electronic resource]
Choquette, Anne F

Reston, Va. : U.S. Geological Survey, 2009
vi, 55 pages : digital, PDF file

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Water-Quality Assessment Of Part Of The Upper Mississippi River Basin, Minnesota And Wisconsin : Nitrogen And Phosphorus In Streams, Streambed Sediment, And Ground Water, 1971-94

Water-quality assessment of part of the upper Mississippi River Basin, Minnesota and Wisconsin : nitrogen and phosphorus in streams, streambed sediment, and ground water, 1971-94
Kroening, Sharon E., author

Mounds View, Minnesota : U.S. Geological Survey, 1997
1 online resource (viii, 61 pages) : illustrations, maps (some color)

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Water-Quality Assessment Of Part Of The Upper Mississippi River Basin, Minnesota And Wisconsin--Volatile Organic Compounds In Surface And Ground Water, 1978-94

Water-quality assessment of part of the upper Mississippi River basin, Minnesota and Wisconsin--volatile organic compounds in surface and ground water, 1978-94
Andrews, William J., 1962- author

Mounds View, Minnesota : U.S. Geological Survey, 1995
1 online resource (vii, 39 pages) : illustrations, maps (some color)

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Water-Quality Assessment Of Part Of The Upper Mississippi River Basin Study Unit, Minnesota And Wisconsin : Nutrients, Chlorophyll A, Phytoplankton, And Suspended Sediment In Streams, 1996-98

Water-quality assessment of part of the upper Mississippi River basin study unit, Minnesota and Wisconsin : nutrients, chlorophyll a, phytoplankton, and suspended sediment in streams, 1996-98
Kroening, Sharon E., author

[Mounds View, Minn.] : U.S. Deptartment of the Interior, U.S. Geological Survey, 2003
1 online resource (viii, 34 pages) : illustrations (some color), maps (some color)

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