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Index / Hydrogeology/Geology/Environmental/ / Field Methods and Procedures
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87 total  (51-75)   < 1 2 3 4 >

Index / Hydrogeology/Geology/Environmental/ / Field Methods and Procedures

The NGWA folks offer the private water well owner tip sheet. Disinfection and a well inspection are recommended when a well water tests positive for microorganisms such as bacteria, viruses, and protozoa (single-cell animals).

Wells are routinely tested for coliform bacteria or other organisms in soil or vegetation, and in the intestinal tract of warm-blooded animals. Most coliforms are harmless. Their presence indicates whether the well environment can support disease-causing bacteria.

Some strains of E. coli are disease causing, even lethal. If a well tests positive f... More →
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Index / Hydrogeology/Geology/Environmental/ / Field Methods and Procedures

PSSAT is a professional organization of soil scientists in Texas with the goals of promoting the proper use, management, and conservation of soil resources and advancing soil science within the State of Texas.
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Find Out More »  |  Open Resource  |  2009/08/13  |  235 Report Broken   Tell A Friend

Index / Hydrogeology/Geology/Environmental/ / Field Methods and Procedures

The press release of April 12, 2016 indicates that in March 2016, 174 Flint residents (out of 269 who participated in the original August 2015 sampling of Flint water) re-sampled their homes for lead in drinking water. The goal was to track possible improvements since the switch back to Detroit water in October 2015 and implementation of improved corrosion control (i.e., extra phosphate added beyond that present in Detroit water) starting December 2015. This work was coordinated by Virginia Tech and was funded by the U.S. EPA (EPA).

The following conclusions are based on a prelimin... More →
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Find Out More »  |  Open Resource  |  2016/04/19  |  141 Report Broken   Tell A Friend

Index / Hydrogeology/Geology/Environmental/ / Field Methods and Procedures

The geosphere is considered that portion of the Earth system that includes the Earth's interior, rocks and minerals, landforms and the processes that shape the Earth's surface. Outstanding source of information on the earth.
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Find Out More »  |  Open Resource  |  2009/08/13  |  229 Report Broken   Tell A Friend

Index / Hydrogeology/Geology/Environmental/ / Field Methods and Procedures

Provides information on optimizing the sampling technique for determining dissolved hydrogen in gases from ground water.
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Find Out More »  |  Open Resource  |  2009/08/13  |  203 Report Broken   Tell A Friend

Index / Hydrogeology/Geology/Environmental/ / Field Methods and Procedures

Trevor Nace reports that the largest and most extensive study to date on Earth groundwater has revealed surprising results regarding modern groundwater recharge rates. Ancient groundwater remains largely unknown and uncharacterized, limiting hydrogeologists understanding of recharge rates and cycle times.

Groundwater is a vital component of practically every system on Earth and has been used extensively in modern times for irrigation, potable water, and industrial activity. Further understanding of the recharge time, or the time that groundwater takes to be replenished, allows hydro... More →
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Find Out More »  |  Open Resource  |  2015/12/24  |  150 Report Broken   Tell A Friend

Index / Hydrogeology/Geology/Environmental/ / Field Methods and Procedures

Jared Firestone opines that executing a Daubert challenge against an opposing party can be the deciding factor in whether you win or lose a case. Due to the enormous consequences a Daubert challenge can have, it is important for any practicing trial attorney to understand how to execute a Daubert challenge, when to do so, and strategies relating to the execution of such a challenge. Below, we have broken down the process of launching a successful Daubert challenge against opposing counsel expert to help you identify the right situation to deploy a gatekeeping challenge, as well as a step-by-st... More →
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Index / Hydrogeology/Geology/Environmental/ / Field Methods and Procedures

Seeking of Reports, etc.
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Index / Hydrogeology/Geology/Environmental/ / Field Methods and Procedures

These are the available soil survey reports prepared by the US Dept. Agriculture.
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Index / Hydrogeology/Geology/Environmental/ / Field Methods and Procedures

Online reports of Texas Water Development Board, plus links to others as well.
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Index / Hydrogeology/Geology/Environmental/ / Field Methods and Procedures

Petrossian, et al., in their report, remind us that groundwater is a natural resource shared among Texas and eight bordering national and international states, New Mexico, Oklahoma, Arkansas, and Louisiana in the United States, and Tamaulipas, Nuevo, Coahuila de Zaragoza, and Chihuahua in Mexico.

Of the 30 major and minor aquifers recognized by the State of Texas, 23 aquifers are shared with one or more of these states. In 2009, the U.S. Environmental Protection Agency Region 6 evaluated groundwater resources in Arkansas, Louisiana, New Mexico, Oklahoma, and Texas and compared the ... More →
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Find Out More »  |  Open Resource  |  2017/07/21  |  0 Report Broken   Tell A Friend

Index / Hydrogeology/Geology/Environmental/ / Field Methods and Procedures

Brambati, et al.(2003) deal with the geological setting, history and subsidence of the Venetian Plain. Major attention is paid to the Pleistocene-Holocene stratigraphic sequence in the Lagoon of Venice, in relation to its origin that dates back to 6 to 7 kyr BP.

Geological land subsidence has played an important role in the origin and the evolution of the lagoon, and anthropogenic subsidence, which has recently assumed a major importance for the Venetian environment. Considering also the sea level rise, 23 cm loss in land elevation has occurred in the last century, is leading to i... More →
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Find Out More »  |  Open Resource  |  2016/05/21  |  142 Report Broken   Tell A Friend

Index / Hydrogeology/Geology/Environmental/ / Field Methods and Procedures

The field journal of the Rocky Mountain Association of Geologists. All volumes in PDF.
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Index / Hydrogeology/Geology/Environmental/ / Field Methods and Procedures

Michael J. Schnieders reports that although initial legislation took place much earlier, the total coliform rule (TCR) of 2001 created quite a bit of stress for the groundwater industry. The TCR contained a significant expansion of microbial testing of wells and public water supplies. Beginning April 1, 2016, and earlier in some states, revisions to the TCR begin to take effect. Are you and your customers prepared?

The new revisions reflect a better understanding of coliform occurrence as well as the total coliform and fecal coliform tests. Although often misunderstood in the past, ... More →
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Find Out More »  |  Open Resource  |  2016/01/18  |  119 Report Broken   Tell A Friend

Index / Hydrogeology/Geology/Environmental/ / Field Methods and Procedures

Everything you ever wanted to know about salt from the industry point of view.
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Index / Hydrogeology/Geology/Environmental/ / Field Methods and Procedures

Plate Tectonics describes the intricate design of a complex, living planet in a state of dynamic flux.
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Index / Hydrogeology/Geology/Environmental/ / Field Methods and Procedures

The Midwest Geosciences Group presents another webinar titled - Taking the Mystery Out of the Subsurface.

The most important factor for:

1. Meaningful well screen design and placement
2. Reliable potentiometric-surface maps
3. Groundwater-monitoring system design
4. Optimum remediation-system design
5. Excavation and foundation design
6. Field management of unanticipated subsurface conditions

The most costly struggle for management in maintaining up-to-date training in basic field procedures and subsurface analysis skills. This compreh... More →
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Find Out More »  |  Open Resource  |  2016/10/10  |  164 Report Broken   Tell A Friend

Index / Hydrogeology/Geology/Environmental/ / Field Methods and Procedures

The Geology Department of Northern Arizona University, in June-July 1996, with the National Association of Geoscience Teachers and Cypress College (CA) in cooperation with the Chengdu Institute of Technology conducted a field trip to Tibet. See results.
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Index / Hydrogeology/Geology/Environmental/ / Field Methods and Procedures

The USGS is a science organization that provides impartial information on the health of our ecosystems and environment, the natural hazards that threaten us, the natural resources we rely on, the impacts of climate and land-use change, and the core science systems that help us provide timely, relevant, and useable information.

The USGS serves the Nation by providing reliable scientific information to describe and understand the Earth; minimize loss of life and property from natural disasters; manage water, biological, energy, and mineral resources; and enhance and protect our qualit... More →
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Find Out More »  |  Open Resource  |  2009/08/13  |  244 Report Broken   Tell A Friend

Index / Hydrogeology/Geology/Environmental/ / Field Methods and Procedures

Celine Lim reports that Canadian hydrogeologist Dr. John Cherry credits his stellar career in groundwater research, protection and management to a series of fortuitous incidents in his early years as a professional. The Lee Kuan Yew Water Prize laureate shares his journey with Eco-Business.

It was 1967, Prof. John Cherry had just joined the University of Manitoba in Winnipeg, Canada, as the first groundwater professor in Canada when he was accosted by a young woman, the only female in the entire engineering department. The American student, Barbara Lund, explained that, after spend... More →
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Find Out More »  |  Open Resource  |  2016/05/04  |  152 Report Broken   Tell A Friend

Index / Hydrogeology/Geology/Environmental/ / Field Methods and Procedures

LogitEasy created the USCS Calculator for professional geologists who need to classify soil according to the ASTM Visual-Manual Procedure (ASTM-D2488) and record only the percentage of gravel, sand, and fines in the field, without the soil group name and symbol.

The USCS Calculator allows the geologist to determine the soil group name and symbol from your field data, for use in soil descriptions when preparing boring and test pit logs. Geology students and young professional geologists are welcome to use the USCS Calculator for learning the first part of this soil classification pr... More →
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Find Out More »  |  Open Resource  |  2017/03/20  |  60 Report Broken   Tell A Friend

Index / Hydrogeology/Geology/Environmental/ / Field Methods and Procedures

U.S. Dept. Agriculture's Soil Geochemistry Spatial Database is part of the National Cooperative Soil Survey, an effort of Federal and State agencies, universities, and professional societies to deliver scientifically based soil information.
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Index / Hydrogeology/Geology/Environmental/ / Field Methods and Procedures

This site includes links to online assessment of near-realtime hydrologic conditions, water-quality monitoring, mapping, coal resource assessment, oil & gas resources, US & Mexico border activities, habitat degradation and fish & wildlife health studies.
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Index / Hydrogeology/Geology/Environmental/ / Field Methods and Procedures

USGS Central Region Geologic Information
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Index / Hydrogeology/Geology/Environmental/ / Field Methods and Procedures

An outstanding source of recent USGS publications on surface water, ground water and associated topics.
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