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921:		Title:	Monitoring mercury deposition: a key to understanding the link between emissions and effects
		Volume/Number:	2005
		Issuing Agency:
		Description:	This publication provides an Introduction to the Mercury Deposition Network (MDN), which is the mercury wet-deposition monitoring arm of the National Atmospheric Deposition Program (NADP). The NADP is a cooperative monitoring program comprised of federal and state agencies, academic institutions, Native American tribal governments, and private organizations. The work of MDN is descibed, as is the danger of mercury to humans. Readers are encouraged to join MDN.
		Date Created:	12 22 2005
		Agency ID:	IEM-2005-03
		ISL ID:	000000000954 Original UID: 999999994475 FIRST WORD: Monitoring

922:		Title:	Drought planning for small community water systems.
		Volume/Number:	2006
		Issuing Agency:
		Description:	The provision of adequate and secure supplies of clean water at reasonable cost is a cornerstone of social and economic development and national security. Major droughts have occurred in the past and will occur again in the future. Such droughts have two major impacts on small community water systems: water supply is reduced (surface waters and shallow groundwater) and water demand increases. The combination of these impacts can result in major stresses on the ability of water systems to meet demand. Many Western states have experienced widespread and severe economic and environmental impacts of 'worst-case' droughts in recent years, and have recognized from these experiences the importance of improved water-supply planning and management, including drought preparedness. However, it is probable that many system managers in the Midwest Technology Assistance Center (MTAC) region have not evaluated their capability to meet water demand during major droughts, nor have in place adequate plans to deal with such emergencies. The MTAC region incorporates the 10 states of Illinois, Indiana, Iowa, Kansas, Michigan, Minnesota, Missouri, Nebraska, Ohio, and Wisconsin.
		Date Created:	2 21 2006
		Agency ID:	CR-2006-01
		ISL ID:	000000000955 Original UID: 999999994476 FIRST WORD: Drought

923:		Title:	Continued operation of a 25-raingage network for collection, reduction, and analysis of precipitation data for Lake Michigan diversion accounting: water year 2005.
		Volume/Number:	2006
		Issuing Agency:
		Description:	A dense raingage network has operated in Cook County since the fall of 1989, to provide accurate precipitation measurements for use in simulating runoff for Lake Michigan diversion accounting. This report describes the network design, the operations and maintenance procedures, the data reduction and quality control methodology, a comparison of rainfall amounts obtained via analog chart and data logger, and an analysis of precipitation for Water Year 2005 (October 2004 - September 2005). The data analyses include 1) monthly and Water Year 2005 amounts at all sites, 2) Water Year 2005 amounts in comparison to patterns from network Water Years 1990-2004, and 3) the 16-year network precipitation average for Water Years 1990-2005. Also included are raingage site descriptions, instructions for raingage technicians, documentation of raingage maintenance, and documentation of high storm totals.
		Date Created:	3 10 2006
		Agency ID:	CR-2006-02
		ISL ID:	000000000956 Original UID: 999999994477 FIRST WORD: Continued

924:		Title:	Hydrology, nutrient, and sediment monitoring for Hurricane and Kickapoo Creek watersheds: Water Year 2000-2002: Pilot watershed program.
		Volume/Number:	2006
		Issuing Agency:
		Description:	The Hurricane and Kickapoo Creek watersheds lie in three counties in southeastern Illinois. The drainage areas of Hurricane Creek and Kickapoo Creek at their confluences with the Embarras River are 56 and 101 square miles, respectively. Hurricane Creek joins the Embarras River at river mile 94.2 and has two tributaries: East and West Branch Hurricane Creek. The Kickapoo Creek is also a tributary of the Embarras River at river mile 115.5. The Illinois State Water Survey (ISWS) conducted a 2.5-year watershed monitoring study of the Hurricane and Kickapoo Creek watersheds for the Embarras River Ecosystem Partnership-Conservation 2000 Ecosystem Program and Illinois Department of Natural Resources Pilot Watershed Program. The purpose was to collect hydrologic and water quality data to provide a better understanding of the cumulative impacts of future best management practices (BMPs) implemented in the watersheds. However, the BMP implementation programs never occurred. The ISWS established two streamgaging stations on Hurricane Creek and one on Kickapoo Creek. Streamflow, sediment, nitrogen, and phosphorus were monitored for the entire study period (April 2000-September 2002). The Mattoon wastewater treatment plant contributes approximately 27 percent of the annual discharge at the Kickapoo Creek station. Annual runoff was much higher at all stations in Water Year 2002 (WY02) than in the preceding 1.5 years. Annual sediment loads in WY02 were twice the loads in WY00 and WY01. The Kickapoo station had higher mean annual nitrate concentrations and load per unit area than the two Hurricane stations.
		Date Created:	8 30 2006
		Agency ID:	CR-2006-03
		ISL ID:	000000000957 Original UID: 999999994478 FIRST WORD: Hydrology,

925:		Title:	High-throughput computing for the analysis of tracer tests in fractured aquifers.
		Volume/Number:	2006
		Issuing Agency:
		Description:	Traditional approaches to characterization and modeling of fractured dolomite aquifers face many conceptual and technical challenges. One alternative strategy begins with the Generalized Radial Flow interpretation of hydraulic tests, which infers an additional parameter, the flow dimension, to describe the geometry of groundwater flow. This study examines the behavior and variability of the apparent flow dimension, n, and advective transport for four stochastic models of heterogeneous transmissivity, T(x). This is accomplished through Monte Carlo analysis of numerical models simulating aquifer tests and converging flow tracer tests (CFTTs) in two-dimensional systems. For ln T(x) distributed as a multivariate Gaussian (mvG) variable of variance less than one, the apparent flow dimension of an aquifer test converges to n = 2 if the scale of the test is large relative to the scale of correlation. The variability of the apparent flow dimension depends on the variance and integral scale of the transmissivity, suggesting that it may be possible to identify the variance and integral scale from a set of aquifer tests. For variances greater than one, the results suggest that the average of the apparent flow dimension is less than two initially, then converges to n* = 2, similar in some respects to a percolation network. The simulation of an uncorrelated log-Gaussian model suggests that the flow dimension of an aquifer test converges to n* = 2 even for large variances. For ln T(x) distributed as fractional Brownian motion (fBm), the apparent flow dimension averages to n* = 2 and its variability increases with time. An approximation of a percolation network model showed an average apparent flow dimension stabilizing between n* = 1.4 to 1.6, followed by an increasing trend. These characteristics apparently are functions of the transmissivity contrast between the percolating and nonpercolating fractions. In the low-variance mvG, uncorrelated log-Gaussian, and fBm models, CFTTs influenced by matrix diffusion showed late-time breakthrough curves (BTCs) with log-log slopes of -3/2, the characteristic behavior of matrix diffusion. In the percolation network model, a simulated CFTT influenced by matrix diffusion had late-time BTC with log-log slopes of -5/4, attributed to slow advection through low transmissivity regions. This indicates that some heterogeneity models can systematically affect the late-time behavior of a BTC for a CFTT. These results suggest that the flow dimension may be a useful diagnostic for selecting models of heterogeneity, and that flow dimensions n ? 2 may be associated with unique tracer behavior. Additional research is advocated to infer the general behavior of the flow dimension at various field sites, to assess a broader range of parameters, to examine other stochastic models, and to conduct a more detailed examination of transport behavior versus the flow dimension.
		Date Created:	4 13 2006
		Agency ID:	CR-2006-04
		ISL ID:	000000000958 Original UID: 999999994479 FIRST WORD: High

926:		Title:	Illinois' statewide monitoring well network for pesticides in shallow groundwater: network development and initial sampling results
		Volume/Number:	2005
		Issuing Agency:
		Description:	A key element of the Illinois Generic Management Plan for Pesticides in Groundwater was the use of a statewide map of aquifer sensitivity to contamination by pesticide leaching. This map included soil properties (hydraulic conductivity, the amount of organic matter within individual soil layers, and drainage class) from a digital soil association map and hydrogeologic properties to a depth of 50 feet. The map displayed six mapped units or levels of aquifer sensitivity, and each map unit was subdivided into two map subunits. Each subunit had a distinct combination of soil and hydrogeologic properties. Prior to the implementation of the Generic Plan, the statewide map was tested by sampling shallow groundwater for pesticides from a dedicated monitoring well network. To test this mapping strategy efficiently, a stratified random sampling plan was adopted that focused on the three most sensitive map units. Project goals were to provide data to test the utility of the aquifer sensitivity map to predict pesticide occurrence and to understand pesticide occurrence in shallow groundwater. All monitoring wells were located near agricultural production fields (most within 10 feet of corn and soybean fields) where the only known source of pesticides were those pesticides used in normal agricultural production. Most studies of pesticide contamination covering a broad geographic area sample water-supply wells, and this study using monitoring wells was designed to generate data that might provide a unique perspective on the occurrence of pesticides in shallow groundwater. Prior to the completion of the entire monitoring network, a one-time sampling program of monitoring wells was conducted to assess the distribution of pesticide occurrence across the various units of aquifer sensitivity, and a time-series sampling program was conducted to assess the temporal variability of pesticides in shallow groundwater. For the one-time sampling program, 159 samples were collected from 159 wells from September 1998 through February 2001. For the time-series sampling program, 215 samples were collected from 21 wells from October 1997 through July 2000. These groundwater samples were analyzed for 14 pesticides but no pesticide degradates. In addition, groundwater samples were collected to characterize cations and anions, including nitrate-nitrogen. Data from these initial sampling programs showed that pesticides were detected in 16 to 18% of the samples. Atrazine was the most commonly detected pesticide, followed by metolachlor, butylate, and bromacil. Only one sample had a concentration of a pesticide (atrazine) that exceeded a federal drinking water standard. Most detections were at concentrations less than 1 g/L. Pesticide occurrence was generally dependent on sampling time. The strongest temporal relationship was between post-application (June through October) versus other time frames (November through May). Pesticide occurrence during post-application months was three times higher than during other months. Pesticide occurrence was three times more common in samples when the depth to aquifer material was mapped as less than 20 feet than when the depth to aquifer material was mapped as 20 to 50 feet. Thus, pesticide occurrence was found to be dependent on depth to uppermost aquifer material or the hydrogeologic factor of the tested map. Pesticide occurrence was not dependent on the combined soil and hydrogeologic factors of the tested map. Thus, the new map was not a useful predictor of pesticide occurrence. The median and range of anion and cation concentrations for both sampling programs were similar, except for nitrate-nitrogen concentrations. The median nitrate-nitrogen concentrations for both programs differed slightly, but were less than 3.0 mg/L, which is well below the 10 mg/L maximum contaminant level for nitrate-nitrogen. The nitrate and sulfate concentrations were not uniform across the six subunits. Based on the neural network analysis of the one-time sampling data, the time of sample collection and well depth appeared to be the best parameters for predicting pesticide concentration. Depth to uppermost aquifer material and depth to water also were significant. Aquifer sensitivity to contamination and pesticide leaching class values were not able to predict contamination potential independently; however, their presence with other input parameters improved the prediction of contamination by the neural network analysis.
		Date Created:	1 24 2006
		Agency ID:	COOP-20
		ISL ID:	000000000959 Original UID: 999999994473 FIRST WORD: Illinois'

927:		Title:	Notice of Commission Action
		Volume/Number:
		Issuing Agency:
		Description:	Citation for Failure to maintain corporate status.
		Date Created:	09 27 2006
		Agency ID:	06-0483
		ISL ID:	000000000960 Original UID: 814 FIRST WORD: Notice

928:		Title:	Montgomery County 2005 Taxing Districts
		Volume/Number:
		Issuing Agency:
		Description:	Illinois Taxing District Map for Tax Year 2005. Geospatial data representing taxing district boundary information collected from Illinois county clerks. Map identifies the boundaries of property tax districts to be used for general illustration and research.
		Date Created:	01 31 2006
		Agency ID:
		ISL ID:	000000000961 Original UID: 879 FIRST WORD: Montgomery

929:		Title:	Morgan County 2005 Taxing Districts
		Volume/Number:
		Issuing Agency:
		Description:	Illinois Taxing District Map for Tax Year 2005. Geospatial data representing taxing district boundary information collected from Illinois county clerks. Map identifies the boundaries of property tax districts to be used for general illustration and research.
		Date Created:	01 31 2006
		Agency ID:
		ISL ID:	000000000962 Original UID: 880 FIRST WORD: Morgan

930:		Title:	Moultrie County 2005 Taxing Districts
		Volume/Number:
		Issuing Agency:
		Description:	Illinois Taxing District Map for Tax Year 2005. Geospatial data representing taxing district boundary information collected from Illinois county clerks. Map identifies the boundaries of property tax districts to be used for general illustration and research.
		Date Created:	01 31 2006
		Agency ID:
		ISL ID:	000000000963 Original UID: 881 FIRST WORD: Moultrie

931:		Title:	Annual Report on Telecommunications
		Volume/Number:	2002
		Issuing Agency:
		Description:	This report presents summary statistics on competition in basic local telephone services and the deployment of broadband and mobile wireless services in Illinois.
		Date Created:	05 28 2003
		Agency ID:
		ISL ID:	000000000964 Original UID: 882 FIRST WORD: Annual

932:		Title:	Annual Report on Telecommunications
		Volume/Number:	2005
		Issuing Agency:
		Description:	This report presents summary statistics on competition in basic local telephone services and the deployment of broadband and mobile wireless services in Illinois.
		Date Created:	09 26 2006
		Agency ID:
		ISL ID:	000000000965 Original UID: 883 FIRST WORD: Annual

933:		Title:	Ogle County 2005 Taxing Districts
		Volume/Number:
		Issuing Agency:
		Description:	Illinois Taxing District Map for Tax Year 2005. Geospatial data representing taxing district boundary information collected from Illinois county clerks. Map identifies the boundaries of property tax districts to be used for general illustration and research.
		Date Created:	01 31 2006
		Agency ID:
		ISL ID:	000000000966 Original UID: 884 FIRST WORD: Ogle

934:		Title:	Peoria County 2005 Taxing Districts
		Volume/Number:
		Issuing Agency:
		Description:	Illinois Taxing District Map for Tax Year 2005. Geospatial data representing taxing district boundary information collected from Illinois county clerks. Map identifies the boundaries of property tax districts to be used for general illustration and research.
		Date Created:	01 31 2006
		Agency ID:
		ISL ID:	000000000967 Original UID: 885 FIRST WORD: Peoria

935:		Title:	Perry County 2005 Taxing Districts
		Volume/Number:
		Issuing Agency:
		Description:	Illinois Taxing District Map for Tax Year 2005. Geospatial data representing taxing district boundary information collected from Illinois county clerks. Map identifies the boundaries of property tax districts to be used for general illustration and research.
		Date Created:	01 31 2006
		Agency ID:
		ISL ID:	000000000968 Original UID: 886 FIRST WORD: Perry

936:		Title:	Piatt County 2005 Taxing Districts
		Volume/Number:
		Issuing Agency:
		Description:	Illinois Taxing District Map for Tax Year 2005. Geospatial data representing taxing district boundary information collected from Illinois county clerks. Map identifies the boundaries of property tax districts to be used for general illustration and research.
		Date Created:	01 31 2006
		Agency ID:
		ISL ID:	000000000969 Original UID: 887 FIRST WORD: Piatt

937:		Title:	Pike County 2005 Taxing Districts
		Volume/Number:
		Issuing Agency:
		Description:	Illinois Taxing District Map for Tax Year 2005. Geospatial data representing taxing district boundary information collected from Illinois county clerks. Map identifies the boundaries of property tax districts to be used for general illustration and research.
		Date Created:	01 31 2006
		Agency ID:
		ISL ID:	000000000970 Original UID: 888 FIRST WORD: Pike

938:		Title:	Pope County 2005 Taxing Districts
		Volume/Number:
		Issuing Agency:
		Description:	Illinois Taxing District Map for Tax Year 2005. Geospatial data representing taxing district boundary information collected from Illinois county clerks. Map identifies the boundaries of property tax districts to be used for general illustration and research.
		Date Created:	01 31 2006
		Agency ID:
		ISL ID:	000000000971 Original UID: 889 FIRST WORD: Pope

939:		Title:	Pulaski County 2005 Taxing Districts
		Volume/Number:
		Issuing Agency:
		Description:	Illinois Taxing District Map for Tax Year 2005. Geospatial data representing taxing district boundary information collected from Illinois county clerks. Map identifies the boundaries of property tax districts to be used for general illustration and research.
		Date Created:	01 31 2006
		Agency ID:
		ISL ID:	000000000972 Original UID: 890 FIRST WORD: Pulaski

940:		Title:	Putnam County 2005 Taxing Districts
		Volume/Number:
		Issuing Agency:
		Description:	Illinois Taxing District Map for Tax Year 2005. Geospatial data representing taxing district boundary information collected from Illinois county clerks. Map identifies the boundaries of property tax districts to be used for general illustration and research.
		Date Created:	01 31 2006
		Agency ID:
		ISL ID:	000000000973 Original UID: 891 FIRST WORD: Putnam

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