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Groundwater Remediation

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Groundwater remediation or clean-up is required when concentrations of contaminants exceed or are expected to exceed predetermined levels for the type of resource that is impacted (Grossman et.al., 2008). For example, lead levels in drinking water should not exceed the EPA action level of 0.015 mg/L. What caused the high levels of lead? How can the lead be removed from the aquifer? (Grossman et.al., 2008).

(Source: Wikipedia-Groundwater Remediation) - Groundwater is also used by farmers to irrigate crops and by industries to produce everyday goods. Most groundwater is clean, but groundwater can become polluted, or contaminated as a result of human activities or as a result of natural conditions. The many and diverse activities of man produce innumerable waste materials and by-products; before the 1980s, the regulation of these wastes was less stringent and waste materials were often disposed of or stored on land surfaces where they percolated into the underlying soil and eventually were carried downward, contaminating the underlying groundwater and therefore jeopardizing the natural quality of it. As a result, contaminated groundwater became unsuitable for use. Current practices can still impact groundwater, such as the over application of fertilizer or pesticides, spills from industrial operations, infiltration from urban runoff, and leaking from landfills. Using contaminated ground water causes hazards to public health through poisoning or the spread of disease, and the practice of groundwater remediation has been developed to address these issues. Contaminants found in ground water cover a broad range of physical, inorganic chemical, organic chemical, bacteriological, and radioactive parameters. Pollutants and contaminants can be removed from ground water by applying various techniques thereby making it safe for use.

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Customer comments

  1. By Sam Lord on

    In response to your questions about Lead, removing metals from aquifers is difficuly, we would look for the source of the lead contamination which may either be natural (i.e. is part of the aquifer composition from lead in bedrock), or from a source which is entering the aquifer. In this second instance the lead source would have to be removed. Over in the UK lead levels in drinking water are often due to lead pipework. Lead pipework has largely been pahsed out however some does exist. How does my explanation rate? Plenty more to read at this blog, http://blog.soilutions.co.uk/