Fox River Watershed Investigation - Publication Details

Report Type: fulltext    Format: Paper Copy    

Abstract:
The purpose of the report was to evaluate baseline loadings of nutrients and sediment to the Mississippi River from the state of Illinois and to identify the sources of those loads. The Illinois EPA's Ambient Water Quality Monitoring Network was selected as the data set to conduct this analysis extended period of time. The network consists of 209 stations on streams ranging in size from October 1980 through September 1996. Parameter selection included nitrogen measured as total ammonia-N, total nitrate+nitrite-N and total Kjeldahl nitrogen, total and dissolved phosphorus, total suspended solids and strem flow. To determine loads and yields, total ammonia-N and total nitrate+nitrite-N were added together as inorganic nitrogen. Nitrates and total Kjeldahl nitrogen were added together to determine total nitrogen. For the report, baseline loads were determined from the mean load calculated from the samples collected over the period of record. Baseline yields were determined by dividing the baseline load by the drainage area.

Data Record Period: 1980-1996
Data Record Notes: Oct. 1980 - Sep. 1996

Model Name: regression equations to estimate loadings

Model Types: Statistical

Data Sources: IEPA

Features: River/Stream, Sediment

Parameters: Ammonia, total; Kjeldahl N; Nitrate+Nitrite; Nitrogen, total; Phosphorus, total; Suspended sediment

Sites - IEPA Station(USGS Station): DT06(5550000), DT09(5551000), DT22(5549600), DT35(5546700), DT38(5551540), DT46(5552500), DTB01(5552000), DTD02(551700), DTG02(5550500), DTK04(5548280)