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Yields of shallow dolomite wells in northern Illinois

Part of: Electronic Documents of Illinois

In northern Illinois large quantities of ground water are withdrawn from wells in shallow dolomite aquifers of Silurian and Ordovician age. The Niagaran and Alexandrian Series of Silurian age and the Galena-Platteville Dolomite of Ordovician age yield moderate to large quantities of ground water. Dolomite beds of the Maquoketa Formation of Ordovician age yield small quantities of water to wells. Silurian rocks are usually encountered at depths of between 10 and 300 feet in northeastern Illinois and between 30 and 880 feet in northwestern Illinois. These rocks exceed 450 feet in thickness at places and are often overlain by glacial drift. The average depth of shallow doIomite weIIs is about 140 feet, and most wells of recent design are finished 12 to 16 inches in diameter. About 1000 well-production tests were made, 1921-1961, on more than 800 shallow dolomite wells. Statistical analysis of specific-capacity data provided a basis for determining 1) the role of individual shallow dolomite aquifers or formations, uncased in wells, as contributors of water; 2) whether or not significant relationships exist between the yields of wells and geohydrologic controls; and 3) the effects of acid treatment on the productivities of wells. It is concluded that the Niagaran Series, Alexandrian Series, and Galena-Platteville Dolomite all have similar moderate to high yields and inconsistency of yields in areas throughout northern Illinois where these rocks directly underlie glacial drift. These Silurian and Ordovician rocks have similar low yields and inconsistency of yields in areas where these rocks are overlain by bedrock. On the other hand, the Maquoketa Formation and rocks of Devonian age yield very little water to wells. Most water-yielding openings occur in the upper one-third of the shallow dolomite aquifers. There is a good connection between glacial drift and the upper part of the shallow dolomite aquifers. Highest yielding wells are found in bedrock upland areas, in areas where the glacial drift immediately overlying the shallow dolomite aquifers is composed of sand and gravel, and in areas where reefs and associated strata are present. Most dolomite wells treated with acid show significant improvement in yield; largest improvements are recorded for rehabilitated wells. Yields are increased because water-yielding openings are enlarged and fine drill cuttings or incrustations are removed from openings. Probable ranges in yields of shallow dolomite wells in undeveloped areas are estimated from specific-capacity frequency graphs, aquifer thickness and area1 geology maps, and waterlevel data.

Wells and pumping systems for domestic water supplies

Part of: Electronic Documents of Illinois

This circular presents basic information on wells and pumping systems used for farm and domestic groundwater supplies. It describes types of wells and their construction, development, and costs. It discusses the various types of pumps and pressure tanks, how to select them, and their costs. Suggestions on locating wells to prevent pollution and procedures for disinfecting a homewater supply system are included.

Wills v. Foster

Part of: Electronic Documents of Illinois

NO. 4-06-0674 Filed 4/18/07 IN THE APPELLATE COURT OF ILLINOIS FOURTH DISTRICT SHEILA M. WILLS, PATRICK BROOKS, and JUNE WILLIAMS, Plaintiffs-Appellants, v. INMAN E. FOSTER, JR., and CHARLENE R. FOSTER, Defendants-Appellees. Appeal from Circuit Court of Sangamon County No. 03L36 Honorable Patrick W. Kelley, Judge Presiding.

Wolfe v. Wolf

Part of: Electronic Documents of Illinois

FIFTH DIVISION August 17, 2007 No. 1-06-0161 GINA M. WOLFE, Plaintiff-Appellant, v. ILENE WOLF, Defendant-Appellee. Appeal from the Circuit Court of Cook County. No. 05 L 3590 Honorable Jeffrey Lawrence, Judge Presiding.

Welcome to the Bright Start College Savings Program

Part of: Electronic Documents of Illinois

Did you know that next to retirement the cost of college education is going to be one of the greatest expenses you and your family are likely to face? Thats why the Illinois State Treasurers Office, working with Citigroup Asset Management, has created the Bright Start College Savings Program. Learn how an investment in Bright Start, a tax-advantaged Section 529 Plan, is designed to help parents, grandparents, relatives or friends nationwide plan for the high cost of a college education. Invest today to take advantage of the benefits of Bright Start.

Weiss v. MI Home Products

Part of: Electronic Documents of Illinois

FIFTH DIVISION SEPTEMBER 7, 2007 1-06-0753 SHARON WEISS and MITCHELL WEISS, Individually and on Behalf of All Others Similarly Situated, Plaintiffs-Appellants, v. MI HOME PRODUCTS, INC., Defendant-Appellee. Appeal from the Circuit Court of Cook County. No. 04 CH 19635 The Honorable Mary Anne Mason Judge Presiding.

What's New with Illinois Business Registration

Part of: Electronic Documents of Illinois

Illinois Department of Revenue Publication FY 2004-22 What's New with Illinois Business Registration, Informational Bulletin is to: Tax Practitioners. Effective immediately, complete Form REG-1, Illinois Business registration Application, when registering a business with us. Please do not use Form NUC-1 or any other registration forms you may have previously used. Completing Form REG-1 is the initial step in the registration process for most taxes and fees administered by the Illinois Department of Revenue (IDOR).

What's New for Illinois Income Tax

Part of: Electronic Documents of Illinois

Illinois Department of Revenue publication FY 2003-06 What's New for Illinois Income Tax, Informational Bulletin To: All Income Tax Preparers - This bulletin summarizes the 2002 Illinois Income Tax changes for both the individual and business income tax forms and schedules.

White County 2005 Taxing Districts

Part of: Electronic Documents of Illinois

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.

Water Use Reduction at an Auto Assembly Plant

Part of: Electronic Documents of Illinois

Misunderstanding the true cost of utilizing raw materials such as water can frequently result in poor management choices regarding how the raw materials are used. Metal finishing operations are notorious for using large quantities of water in their processes. The common perception is that "water is cheap" so, it can be used liberally to ensure that work-pieces are adequately cleaned, rinsed and coated. While it may be true that the actual purchase of the water itself is relatively inexpensive, the cost to using the water within the processes may be considerably more expensive. A 2004 assessment performed by the Illinois Waste Management and Research Center on a major automotive assembly plants phosphating processes revealed that they perceived their water costs to be only $2.20 per 1,000 gallons (the cost to purchase water from the city). At this low cost, water was used liberally throughout the plant to ensure adequate quality of cleaning and coating processes.

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