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Index / Hydrogeology/Geology/Environmental/

Olariu and Ambrose report that the Wilcox Group is a 3,000 m thick unit of clastic sediments deposited along the Gulf of Mexico coast during early Paleogene. This study integrates core facies analysis with subsurface well-log correlation to document the sedimentology and stratigraphy of the Lower Wilcox Guadalupe Delta. Core descriptions indicate a transition from wave- and tidally-influenced to wave-dominated deposition. Upward-coarsening facies successions contain current ripples, organic matter, low trace fossil abundance and low diversity, which suggest deposition in a fluvial prodelta to ... More →
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Find Out More »  |  Open Resource  |  2016/07/07  |  136 Report Broken   Tell A Friend

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Databases, by SOILECTION, offers the following options. Search conditions generate technical descriptions of remediation techniques and practical experience (cases). The cases make it possible to assess the applicability of soil remediation techniques. The database is complemented with information from the HIP pilot program. Information from practice show which techniques are most effective in certain conditions. The SOILECTION website allows you to compare cases with your own planned remediation project.

SOILECTION draws on existing instruments like the Richtlijn Herstel Bodembehe... More →
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Find Out More »  |  Open Resource  |  2016/06/26  |  126 Report Broken   Tell A Friend

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Miller Starr Regalia opines that in two opinions filed May 10, 2016 (one partially and the other fully published), the Fourth District Court of Appeal rejected a number of CEQA and other challenges to a project proposing to pump 50,000 acre-feet of groundwater per year for a 50-year period from a Mojave Desert aquifer in the County of San Bernardino. The Project, proposed by a public-private partnership between lead agency Santa Margarita Water District and the overlying landowner, Cadiz, Inc. seeks to beneficially use and prevent the loss of groundwater, some portion of which would otherwise ... More →
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Find Out More »  |  Open Resource  |  2016/05/14  |  133 Report Broken   Tell A Friend

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According to Global Construction Review, in an effort to hold off projections that the UAE could run out of groundwater in 14 years, the National Center for Atmospheric Research (NCAR) have been hired to carry out detailed modelling studies to evaluate the effectiveness of a artificial mountain. The idea is that the mountain would force air masses to rise, which could then be seeded to produce increased rainfall.

Increased precipitation would help the UAE as currently groundwater makes up 70% of the emirates water supply, with 33 desalination plants providing 24%, and wastewater 6%... More →
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Find Out More »  |  Open Resource  |  2016/05/09  |  136 Report Broken   Tell A Friend

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The purpose of this document is to provide general direction and requirements for the selection, design, implementation, and evaluation of in situ remedial technologies and discharges. This document provides information that is necessary to support the selection of an in situ remedy. It is intended to foster the development of viable strategies that are consistent with the applicable requirements of ...

Part 201, Environmental Remediation (Part 201), of the Natural Resources and
Environmental Protection Act (NREPA), 1994 PA 451, as amended, Administrative Rules,

Part... More →
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Find Out More »  |  Open Resource  |  2016/05/04  |  169 Report Broken   Tell A Friend

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The USGS reports that past fireworks displays are the probable cause of elevated concentrations of perchlorate in groundwater and surface water within Mount Rushmore National Memorial. It is a compound used as an oxidizing agent in fireworks, and is a common component in rocket fuels, explosives and certain nitrogen fertilizers. At high levels in drinking water, it can interfere with the function of the human thyroid gland. However, the drinking water at Mount Rushmore meets current regulations and is safe for public consumption.

Aerial fireworks displays took place at th... More →
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Find Out More »  |  Open Resource  |  2016/05/04  |  191 Report Broken   Tell A Friend

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According to Jeff Falk of Rice University, research brief from the Baker Institute for Public Policy concluded that an understanding and utilization of unconventional water resources can serve to increase water security and assist economic growth, effectively closing the gap between water supply and demand. One unconventional water source is brackish groundwater (water with high TDS between 1,000 and 10,000 ppm). For example, in Texas, oil and gas producers are using brackish groundwater as an alternative source of water for hydraulic fracking operations, especially in the Eagle Ford, Permian,... More →
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Find Out More »  |  Open Resource  |  2016/04/25  |  195 Report Broken   Tell A Friend

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President Obama Releases FY2017 Budget, Yields Mixed Bag for NGWA Priorities...

On February 9, President Barack Obama released what is described as an aspirational $4.1 trillion budget, pressing his case on environmental and energy initiatives. The White House championed a concerted cross-agency effort devoted to water innovation noting $260 million in the budget is devoted to activities that boost research and data surrounding water efficiency and water supply issues. Given persistent drought in the West, the Bureau of Reclamation WaterSMART program will receive a 12% boost. Also,... More →
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Find Out More »  |  Open Resource  |  2016/02/22  |  139 Report Broken   Tell A Friend

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Gulf Coast Countries are seeing the largest gaps between renewable water supplies and demand. Currently Bahrain uses 220 percent of its renewable water reserves vs. 943 percent for the Saudi Kingdom and 2,465 percent for Kuwait.

The Kingdom has not rivers or lakes and therefore, water demand from groundwater is 98% with the remaining percentage from desalination plants. Of that 98%, 95% is utilized for industrial and human consumption.
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Hugo A. Loaiciga and Stephen Renehan indicate that their paper synthesizes and interprets data pertaining to the evolution of average water revenue, water use, and the average cost of water supply in the City of Santa Barbara, California, from 1986 to 1996, a period which included one of the most devastating droughts in California in the 20th century.

The 1987-1992 drought hit the study area particularly hard. The City of Santa Barbara was dependent exclusively on local sources for its water supply. That made it vulnerable as the regional climate is prone to extreme variability and... More →
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Find Out More »  |  Open Resource  |  2016/01/06  |  132 Report Broken   Tell A Friend

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Dr. Rima Petrossian, Vice President for Western Texas of the AIPG Texas Section, reports that water, as it moves from the surface through the soil to an aquifer, takes on a differing economic value depending upon its location, abundance, and purpose. Location includes variables such as political boundaries, depth in the geologic strata, continent, latitude and longitude, and type of landform. Groundwater values, as interpreted through an economic lens, are based on supply and demand.

Production and transportation and/or infrastructure factor into the cost of developing water. Part ... More →
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Find Out More »  |  Open Resource  |  2016/01/05  |  191 Report Broken   Tell A Friend

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In the appropriations bill which funds the government though September 30, 2016, NGWA was pleased to see an increase in National Ground-Water Monitoring Network funding for FY2016. The Network will receive $3.6 million to continue implementation of the program, an increase of $1 million over FY2015 levels. The increase in funding will allow for additional implementation of the National Ground-Water Monitoring Network across the U.S. The program assembles water-level and eventually water-quality data from state agencies across the country onto a publicly accessible web portal, thus allowing for... More →
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Henry Wise, P.G., CPG, and a Remedial Services Specialist for SWS Environmental Services, suggests that you might not have known that geologists are often used during emergency responses, site investigations, and remediation of soil and groundwater. When contamination is found in a waterway or sewer for example, the source is not always known. Geologists are experts in determining contamination migration pathways so that their source can be discovered quickly, stopped, and the plume contained. Some of the tools at their disposal include LEL(Lower Explosive Limit) and PID (Photoionization Dete... More →
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Brian Chew opines that looking back over the last three decades of remediation projects, he has noticed a very interesting trend. Despite advances in technology and equipment, a good majority of the techniques we were using in the early 1980s are still in use today, only with less disruption to the property.

One big difference between then and now is that in many cases the cost to remediate a contaminated site was much higher in the 1980s than it is today. Obviously, some of the cost differential has to do with competition and funding sources as back in the early 80s, he remembers... More →
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Find Out More »  |  Open Resource  |  2015/11/17  |  164 Report Broken   Tell A Friend

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John Simmons reports in The Geoscientist Online of the Geological Society of London that geologists in the energy industry can improve their company financial performance, environmental impact and engagement by reviewing their involvement with water, writes John Simmons. In the increasingly vibrant debate about the effect of energy production on the environment, the focus has been largely on anthropogenic CO2 and the need to leave hydrocarbons in the ground. While that debate rages in forums at national and international level, another aspect of energy production, with a significant effect lo... More →
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Find Out More »  |  Open Resource  |  2015/11/08  |  158 Report Broken   Tell A Friend

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The Archive is a searchable database providing full bibliographic references for published and unpublished groundwater literature about Africa, including reports, journal articles, conference papers and maps. For many of the documents, the Archive links to a full text document freely available to download. If the document is not freely available, a link is provided to an online abstract where possible.

This archive of groundwater literature for Africa was developed as part of the Africa Groundwater Atlas project, through the Unlocking the Potential for Groundwater for the Poor (UPGr... More →
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Barbara Mahler and Jon Campbell report that about 115 million people, more than one-third of the nation's population rely on groundwater for drinking water. As the National population grows, the need for high-quality drinking-water supplies becomes even more urgent.

About 43 million people rely on groundwater from private wells. About 20% of the groundwater samples from parts of aquifers used for drinking water contained a contaminant from geologic or man-made sources at a level exceeding a potential human-health concern. 6,600 wells were sampled for this study. 1.3 million chemical... More →
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Find Out More »  |  Open Resource  |  2015/10/05  |  144 Report Broken   Tell A Friend

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The NGWA Newszine is a benefit for members of the National Ground Water Association. If you do not want to receive this electronic newsletter, please send an email to customer service at ngwa.org. While the information in the NGWA Newszine has been compiled from sources and documents believed to be reliable, its accuracy is not guaranteed, nor is any responsibility assumed or implied for any damage or loss resulting from inaccuracies or omissions.
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Find Out More »  |  Open Resource  |  2015/06/26  |  126 Report Broken   Tell A Friend

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About 115 million people, more than one-third of the U.S. population, rely on groundwater for drinking water. As the U.S. population grows, the need for high-quality drinking-water supplies becomes even more urgent.

About 43 million people in the U.S. rely on groundwater from private wells. 1 of every 5 groundwater samples from parts of aquifers used for drinking water contained a contaminant from geologic or manmade sources at a level exceeding a potential human-health concern. 6,600 wells were sampled for this study. 1.3 million chemical analyses performed for this study.
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Find Out More »  |  Open Resource  |  2015/04/03  |  132 Report Broken   Tell A Friend

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Richard P. McCulloh reports that a sidewalk fracture in a residential neighborhood not far north of the Baton Rouge fault in southern East Baton Rouge Parish exhibits what may be transcurrent or strike-slip displacement of approximately 10 cm or 3.9 in, with a left-lateral sense of separation. The fracture, which strikes approximately N 72 degrees E, is subparallel to the sidewalk and transects portions of 6 sidewalk panels. The average strike of the Baton Rouge fault in the area to the south is approximately N 79 degrees W, making the angle between the fracture and the fault approximately 29 ... More →
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When thinking about the use of horizontal/directional drilling -HDD- methods for environmental well installations, many consultants and owners have the perception that the technology is only useful for large, complex sites. The types of locations commonly considered to utilize HDD environmental wells include Department of Defense sites, manufacturing facilities, chemical plants and rail yards.

Although many of those large complex sites are ideal for HDD well installations, horizontal well projects consisting of one to three short-shallow wells, are consistently being completed acro... More →
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Find Out More »  |  Open Resource  |  2015/02/04  |  142 Report Broken   Tell A Friend

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Everyone knows that water is essential to human, plant, and animal survival. From huge cities to tiny villages, about 50 per cent of the world population depends on groundwater every day. While groundwater is the most abundant source of fresh water on earth, the water is in storage in the great groundwater reservoir below the surface, the top of which is relatively near the surface and extends thousands of feet below in saturated conditions. We often know where to locate it because it occurs in porous or fracture media. Although indicated in the video, there is no mystery behind the great reso... More →
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Find Out More »  |  Open Resource  |  2014/12/03  |  109 Report Broken   Tell A Friend

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Joe Romm reports that an alarming satellite-based analysis from NASA finds that the world is depleting groundwater, the water stored underground in soil and aquifers, at an unprecedented rate. A new Nature Climate Change article, The global groundwater crisis, by James Famiglietti, a leading hydrologist at the NASA Jet Propulsion Laboratory, warns that most of the major aquifers in the world arid and semi-arid zones, that is, in the dry parts of the world that rely most heavily on groundwater, have been experiencing rapid rates of groundwater depletion for many years. The groundwater in some o... More →
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Kevin McCray reports that among the available data are indications of at least an apparent short-term downward trend for new residential water well construction. The data suggest the percentage of new single-family houses completed in the United States with individual water service - primarily wells - may have dropped from about 12.5 per cent to about 8 per cent from 2009 to 2013.


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The International Hydrogeological Map of Europe, scale 1 to 1,500,000 (IHME1500) is a series of general hydrogeological maps comprising 25 map sheets, partly with explanatory notes, covering nearly the whole European continent and parts of the Near East. The national contributions to this map series were compiled by hydrogeologists and experts in related sciences of the countries concerned under the auspices of the International Association of Hydrogeologists (IAH). The project is supported by the Commission for the Geological Map of the World (CGMW). The scientific editorial work is promoted ... More →
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Find Out More »  |  Open Resource  |  2014/07/20  |  149 Report Broken   Tell A Friend
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