Water
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NewThis publication covers microfiltration, which is used for physical removal of contaminants from water. It describes how these processes work, their situation-specific usefulness/applications, maintenance needed for their proper functioning, and guidance for the consumers to select the appropriate filter.
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C 1331-01
The Bucket Method
This publication describes the Bucket Method and how someone would use this method to measure the streamflow in a stream, creek, or river to be used in developing a Low Flow Plan required for a agricultural withdrawal permit. Part of the Stream Flow Measurements series.
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Crop water requirements are not static during the growing season. They vary with crop growth stages and environmental conditions. Advanced irrigation scheduling tools use data collected from or near the field where crops are growing to provide timely information on how much water crops need and when they need it, and generally result in optimizing irrigation water use.
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Perfluoroalkyl and polyfluoroalkyl substances (PFAS) are a group of more than 9,000 manmade chemicals that have been in use worldwide since 1940, primarily in industry and numerous commercial and consumer products. The widespread use of PFAS for the past several decades has raised concerns due to their persistence, bioaccumulative nature, and potential adverse health effects. This publication provides information about the background, uses, and environmental and human health consequences of PFAS chemicals, as well as the EPA’s primary drinking water regulation standards and water treatment systems for removal/reduction of these chemicals from drinking water. Testing options and PFAS monitoring efforts by the Georgia EPD are included along with references for further reading.
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B 1563
Oxidizing Filters
Private well waters often contain high levels of iron, manganese, and hydrogen-sulfide. While these contaminants are not considered to have any human health consequences, they can cause various issues such as staining, impaired taste, and odor problems once their concentration exceeds certain levels, and homeowners need an appropriate system to remove them—such as an oxidizing filter. Oxidizing filters operate using oxidation, which occurs when a substance comes into contact with oxygen or another oxidizing substance. Everyday examples of oxidation are rust and the brown color that develops on a cut apple. This publication discusses various aspects of oxidizing filtration technique such as applicability, types of filter media, maintenance, etc.
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Best Management Practices (BMPs) can be described as management and/or structural practices that are designed to reduce pollutants and erosion while increasing the quality of all life. The BMP concept deals specifically with nonpoint source pollution, such as runoff from agricultural fields, forest areas or urban areas. BMPs are also voluntary in nature. Individual practices and applications can vary widely from field to field. Best management practices are typically used in agricultural areas, and forest and urban settings.
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Storm water is the runoff from land and impervious areas such as paved streets, parking lots and building rooftops during rain events. It often contains pollutants such as nutrients, bacteria, sediment and metals that could adversely affect water quality.
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Activated carbon, also called activated charcoal, is usually produced from charcoal in granular or powdered form. It is a form of carbon that has been processed (activated) to make it highly porous, with a very large surface area available for physical adsorption or chemical reactions. Among others, water treatment is an important application of activated carbon. Activated carbon filters treat general taste and odor problems, including chlorine residue, various organic chemicals, and the radioactive gas radon. This publication discusses various types of activated carbon water treatment systems, their usefulness and limitations, along with required maintenance.
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This publication highlights some of the ongoing research into using SSDI in organic vegetable crop production. SSDI facilitates cultivation without harming drip tubing and limits surface soil wetting, which may also reduce weed pressure. Prior research has shown that SSDI offers some advantages over surface-placed drip tubing in conventionally grown crops (Coolong, 2016).
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