AGENDA: Uncovering the Hidden Resource: Groundwater Law, Hydrology and Policy in the 1990s

Sponsored by Natural Resources Law Center, University of Colorado School of Law and the Rocky Mountain Ground-Water Conference, organized by the Colorado Ground-Water Association. Faculty for the conference included University of Colorado School of Law professor Lawrence J. MacDonnell. Nearly half the people in the United States rely on groundwater as their primary water source. As demands for groundwater grow, it becomes increasingly important for lawyer and technical professionals to understand the legal and hydrologic issues arising in groundwater development, use, and protection. These issues will be the focus of the Center\u27s thirteenth annual summer program, June 15-17, 1992. This year the Center is holding its water program in conjunction with the Rocky Mountain Ground-Water Conference, organized by the Colorado Ground-Water Association. Joint sessions with the Rocky Mountain Ground-Water Conference will include: • an introduction to groundwater law and hydrology; • a demonstration and analysis of an expert witness examination; • an overview of state and federal programs aimed at protecting groundwater quality; • a panel discussion of the clean-up of the Rocky Mountain Arsenal; and • a critical evaluation of today\u27s groundwater clean-up-approaches. Separate sessions focused on groundwater law and policy will include panel discussions on: • groundwater development proposals in Colorado\u27s San Luis Valley and Nevada\u27s rural counties; • groundwater management issues in the Tucson Active Management Area (Ariwna), Southern California\u27s intensively managed groundwater basins, and the Edwards Aquifer in Texas; and • the intersection of groundwater quality and groundwater allocation in the San Gabriel Valley, California

AGENDA: Uncovering the Hidden Resource: Groundwater Law, Hydrology and Policy in the 1990s

Sponsored by Natural Resources Law Center, University of Colorado School of Law and the Rocky Mountain Ground-Water Conference, organized by the Colorado Ground-Water Association. Faculty for the conference included University of Colorado School of Law professor Lawrence J. MacDonnell. Nearly half the people in the United States rely on groundwater as their primary water source. As demands for groundwater grow, it becomes increasingly important for lawyer and technical professionals to understand the legal and hydrologic issues arising in groundwater development, use, and protection. These issues will be the focus of the Center\u27s thirteenth annual summer program, June 15-17, 1992. This year the Center is holding its water program in conjunction with the Rocky Mountain Ground-Water Conference, organized by the Colorado Ground-Water Association. Joint sessions with the Rocky Mountain Ground-Water Conference will include: • an introduction to groundwater law and hydrology; • a demonstration and analysis of an expert witness examination; • an overview of state and federal programs aimed at protecting groundwater quality; • a panel discussion of the clean-up of the Rocky Mountain Arsenal; and • a critical evaluation of today\u27s groundwater clean-up-approaches. Separate sessions focused on groundwater law and policy will include panel discussions on: • groundwater development proposals in Colorado\u27s San Luis Valley and Nevada\u27s rural counties; • groundwater management issues in the Tucson Active Management Area (Ariwna), Southern California\u27s intensively managed groundwater basins, and the Edwards Aquifer in Texas; and • the intersection of groundwater quality and groundwater allocation in the San Gabriel Valley, California

Ground Water Contamination

This detailed discussion explains that most ground water contamination is the result of human activity, and that several laws have been passed with an aim to minimize effects. The Clean Water Act and the Safe Drinking Water Act are explained along with the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA, or Superfund), the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA), the Resource Conservation and Recovery Act (RCRA), and the Toxic Substances Control Act (TSCA). Other terms explained include zone of contribution, interaquifer leakage, and plume of contamination. Special tables included at this site are Typical Sources of Potential Ground Water Contamination by Land Use Category and Potential Harmful Components of Common Household Products. There is also a full page diagram showing some potential sources of ground water contamination. Educational levels: High school, Middle school

Health effects from exposure to high levels of sulfate in drinking water study

"January 21, 1999."Also available via the World Wide Web

Pesticides in Ground Water: Will the EPA's New Regulation Decrease Health Risks?

The EPA's new regulation to protect ground water, the Pesticides and Ground Water Management Plan rule, will not significantly decrease health risks. Existing evidence suggests that the risk from ground water contamination is low and states have effective ground water protection programs. It is therefore unlikely that extensive federal involvement is necessary to protect ground water. The EPA has indicated it will use the new regulation to require states to expand their programs. The EPA did not, however, estimate the benefits of expanding ground water protection in the proposed rule, consider the risk of alternative pesticides, or show that the actual level of risk is potentially greater than existing data suggest. In this paper, I illustrate an approach for estimating the benefits and costs of ground water protection based on a case study of ground water contamination in California's San Joaquin Valley. The study shows that the health risk from ground water contamination is low, the costs of reducing contamination are high, and California is effectively protecting ground water. The study also shows that better analysis of the benefits and costs of ground water protection in each state can help the EPA determine the appropriate level of federal involvement in state ground water protection activities.

Predicting Ground Water Flow

In this activity students learn how to draw ground water contours and understand how ground water flow may be predicted. As they complete this activity students will be able to draw a ground water contour map, have a basic understanding of how to predict the direction of ground water flow and understand the interrelated nature of ground water and surface water flow. They will also learn the difference between a gaining stream and a losing stream and why it is important to know the difference. Educational levels: High school, Middle school

Defluoridation of Ground Water Using Activated Carbon of Ber (Indian Jujube) Leaves

The present study deals with defluoridation of ground water using activated carbon of ber (Indian jujube) leaves. In this study, Activated Ber leaves carbon (ABLC) prepared by heating the leaves in electric furnace was found to be useful for the removal of fluoride. Batch experiments were applied on water sample to study the influence of pH, adsorbent dose and contact time on adsorption efficiency. Fluoride removal reached a maximum of 72.5% by particle size 0.3mm of ABLC at pH 6.0. The adsorption of fluoride from aqueous solution with ABLC followed Freundlich equation. The values of adsorption capacity (K) and intensity of adsorption (1/n) indicate greater affinity for fluoride. Thermally activated Ber leaves carbon (ABLC) was good adsorbent

Modified zeolites in ground water treatment

There are presented results of technological experiments carried out in Water Treatment Plant Kúty. The goal of this study was to compare modified zeolite known as clinoptilolite (rich deposits of clinoptilolite were found in the region of East Slovakia in the 1980s) with the imported modified zeolite from deposit situated in Hungary. Klinopur-Mn and Klinomangan were used for removal of iron and manganese from ground water to meet the requirements of the Regulation of the Government of the Slovak Republic No. 496/2010 on Drinking Water. The materials observed exhibit different efficiencies of manganese removal from water, since the quality of the treated water play a major role (oxygen content and pH value). In the case of the removal of the iron from the water, the quality of the raw water is not a limiting factor; both materials removed Fe from the water to below the limit value (0.20 mg.l-1).Článok prezentuje výsledky technologických skúšok vykonaných v UV Kúty. Cieľom tejto práce bolo porovnať modifikované (povrchovo upravené) zeolity známe ako klinoptilolit (veľké nálezisko klinoptilolitu bolo objavené na Východnom Slovensku v 1980-tych rokoch) s dovážaným povrchovo upraveným zeolitom z náleziska v Maďarsku. Klinopur-Mn a Klinomangan boli použité pre odstraňovanie železa a mangánu z podzemnej vody na dosiahnutie limitných hodnôt pre pitnú vodu podľa Nariadenia vlády č. 496/2010 Z.z. Sledované materiály vykazovali rôznu účinnosť odstraňovania mangánu z vody, na účinnosť odstraňovania mala významný vplyv kvalita upravovanej vody (obsah kyslíka, hodnota pH). V prípade odstraňovania železa z vody kvalita surovej vody nie je limitujúcim faktorom, obidva materiály odstraňovali železo z vody pod limitnú hodnotu (0,2 mg.l-1)

Ground Water Management: Need for Sustainable Approach

Groundwater constitutes about 89% of the total fresh water resources in the planet. But in recent years, due to over exploitation of ground water and erratic nature of monsoon, there has been depletion of ground water across the world. Depletion of ground water has reached to the extent that it is virtually impossible to get the water table back. Even though there is a possibility of recharge of water from the other areas, the process is very slow and may take one year to replenish one meter. In view of this management of ground water has become one of the most significant issues in recent times. Added to it, there are also environmental problems such as aqua for mining, salt water intrusion, stream base flow reduction etc. For several reasons the efficient management of ground water resources through market mechanism has become difficult. Against this context the present article attempts to analyze the need for sustainable ground water management in India. The article also briefly discusses the concept of sustainable ground water management, factors affecting ground water availability, different approaches towards developing and using available ground water with out adversely affecting the hydro-geological balance. Further, the paper highlights strategies for sustainable groundwater management, including development of aquifers, rainwater harvesting and artificial recharge methods. The article offers some relevant policy recommendations for sustainable groundwater management in India.Ground water, India, Water

Arkansas Water Resources Research Center Pamphlet

Arkansas Water Resources Center (AWRC) works closely with state and federal agencies and academic institutions. Priority research categories are: surface water analysis, ground water pollution, surface and ground water quality/quanity, and water resource management