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  • All fields: Measurements
(672 results)



Display: 20

    • Ground-water levels in Illinois through 1961

    • 1963; Groundwater; ISWS RI-45; Russell, Robert R.; Water levels; Wells
    • Systematic measurements of ground-water levels in Illinois were started in the early 1930s in the Chicago region. Measurements were made in 1961 in 220 observation wells in 42 counties throughout the state. In areas remote from pumping centers, no...
    • Detecting drought conditions in Illinois

    • 1987; Changnon, Stanley A., Jr.; Crops and climate; Droughts; Droughts -\- Forecasting; ISWS C-169; Soil moisture; Stream measurements; Water levels
    • A major study of Illinois droughts was conducted to develop a basis for quantitative assessments of drought conditions in Illinois. Such information should aid decision making related to local and state actions to ameliorate the effects of future...
    • Atmospheric dispersion study of deicing salt applied to roads : first progress report

    • 2000; Aerosols; Air quality; Atmospheric deposition; ISWS CR 2000-05; Roads -\- Snow and ice control -\- Environmental aspects; Williams, Allen L., Gary J. Stensland, Cathy R. Peters, and Jim Osborne
    • This report describes the status of an initial effort to understand and describe the atmospheric transport of road salt in the form of sodium chloride (NaCl) applied to highways as a deicing material. The study area is a proposed 20.1 kilometer or...
    • Watershed monitoring for the Lake Decatur watershed, 1998-1999

    • 2000; Big Creek (Upper Sangamon); Big Ditch; Camp Creek (Upper Sangamon); Canal; Friends Creek; Goose Creek (Upper Sangamon); ISWS CR 2000-06; Keefer, Laura and Misganaw Demissie; Long Creek (Upper Sangamon); Nitrates -\- Environmental aspects;...
    • Lake Decatur is the water supply reservoir for the City of Decatur. The reservoir was created in 1922 by constructing a dam to impound the flow of the Sangamon River with an original water volume of 20,000 acre-feet and an area of 4.4 square miles....
    • Hydrologic modeling of the Court Creek watershed

    • 2000; Borah, Deva K., and Maitreyee Bera; Court Creek; Hydrologic models; ISWS CR 2000-04; Stream
    • Flooding, upland soil and streambank erosion, sedimentation, and contamination of drinking water from agricultural chemicals (nutrients and pesticides/herbicides) are critical environmental problems in Illinois. Upland soil erosion causes loss of...
    • Sidestream elevated pool aeration (SEPA) stations: effects on in-stream dissolved oxygen

    • 2000; Butts, Thomas A., Dana B. Shackleford, and Thomas R. Bergerhouse; ISWS CR 2000-02; Reservoir; Water -\- Aeration; Water -\- Dissolved oxygen; Waterloo Reservoir (ISWS - Monroe County)
    • As a result of increased pollutant loading and low in-stream velocities, dissolved oxygen (DO) levels in the Chicago waterways historically have been low. In 1984, the Metropolitan Water Reclamation District of Greater Chicago (MWRDGC) issued a...
    • Streamflow assessment model for the Little Wabash River Watershed : hydrologic analysis

    • 2001; Auxier Creek; Big Muddy Creek; Borah Lake; CIPS Lake; Canal; East Fork Lake (ISWS - Richland County); Elm River; Forbes Lake; Fox River (Richland County); Goose Pond (Wayne County); Greendale Lake; Horse Creek; ISWS CR 2001-14; Illinois...
    • The Illinois Streamflow Assessment Model (ILSAM) is an analytical and information tool developed to predict the frequency of streamflows, and water use impacts on streamflows, for every stream in selected major watersheds in Illinois. The current...
    • Bank erosion survey of the main stem of the Kankakee River in Illinois and Indiana.

    • 2001; Bank erosion; Bhowmik, Nani G., Misganaw Demissie, David Soong, Erin Bauer, William C. Bogner, and Jim Slowikowski; Erosion; ISWS CR 2001-01; Illinois; Indiana; Kankakee River; Kankakee Watershed; Maps; Stream; Survey; Watershed
    • This report is the second of a series of three reports being prepared for the work done on the Kankakee River based on a Conservation 2000 Grant from the Illinois Department of Natural Resources. The present report focuses on the bank erosion...
    • Sedimentation survey of Lake Decatur's Basin 6, Macon County, Illinois.

    • 2001; Bogner, William C.; ISWS CR 2001-07; Lake Decatur; Reservoir; Reservoir sedimentation; Sangamon River; Sedimentation analysis; Stream; Stream measurements
    • Sedimentation detracts from the use of any water supply lake by reducing lake depth and volume, with a reduction of reserve water supply capacity and possible burying of intake structures. Sedimentation of a reservoir is a natural process that can...
    • Watershed monitoring for the Lake Decatur Watershed, 1999-2000.

    • 2002; Big Creek (Upper Sangamon); Big Ditch; Camp Creek (Upper Sangamon); Canal; Friends Creek; Goose Creek (Upper Sangamon); ISWS CR 2002-01; Keefer, Laura and Misganaw Demissie; Long Creek (Upper Sangamon); Nitrates -\- Environmental aspects;...
    • Lake Decatur is the water supply reservoir for the City of Decatur. The reservoir was created in 1922 by constructing a dam to impound the flow of the Sangamon River. The dam was modified in 1956 to increase the maximum capacity of the lake to...
    • Watershed monitoring for the Lake Decatur Watershed, 1999-2000.

    • 2002; Big Creek (Upper Sangamon); Big Ditch; Camp Creek (Upper Sangamon); Canal; Friends Creek; Goose Creek (Upper Sangamon); ISWS CR 2002-01; Keefer, Laura and Misganaw Demissie; Long Creek (Upper Sangamon); Nitrates -\- Environmental aspects;...
    • Lake Decatur is the water supply reservoir for the City of Decatur. The reservoir was created in 1922 by constructing a dam to impound the flow of the Sangamon River. The dam was modified in 1956 to increase the maximum capacity of the lake to...

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