Groundwater Groundwater Pollution

From 1947 to 1977, these two plants legally discharged from 500,000 to 1.5 million pounds of PCBs into the Hudson, and unknowingly saturated the bedrock beneath both sites with at least that much again. There are PCBs in Hudson River water, biota, and sediment from Hudson Falls to New York City - 200 miles that comprise the nations largest Superfund site. Pure PCBs are oozing out of the bedrock to this day, constantly recontaminating the river and over 300,000 pounds remain concentrated in bottom sediments of the river today. The spread of PCBs throughout the Hudson River and the food chain, which it supports, has created one of the most extensive hazardous waste problems in the nation. Polychlorinated biphenyl’s (PCBs) are a group of synthetic oil-like chemicals (therefore insoluble in water) of the organochlorine family. Until their toxic nature was recognized and their use was banned in the 1970s, they were widely used as insulation in electrical equipment, particularly transformers. Reputable chemists have since concluded, “it was probably a mistake ever to make or use PCBs.” These are serious poisons, which have been shown to cause damage to the reproductive, neurological and immune systems of wildlife and humans and are known to cause cancer. Exposure has also been linked to behavioral damage. Specifically, because PCBs in the body mimic estrogen, women of childbearing age and their infants are particularly susceptible

There has been contamination found in the groundwater surrounding all four towns. The groundwater is contaminated with VOCs, trichloroethene (TCE), ethylene dibromide (EDB), carbon tetrachloride (CCI4), perchloroethylene (PCE), benzene, vinal chloride, 1,1,2,2-TeCA, 1,4-dichlorobenzene, manganese, thallium, lead, toluene, and RDX. “Ethylene dibromide is especially worry some because it was found upwelling in cranberry bogs located in Falmouth and Mashpee (militarycontamination)”. Where it would was stored in the cranberries skin. “Falmouth being the most affected area losing twenty five percent of its possible drinking water supply (wr.usgs)”. Although the plumes are deep down in the aquifer. “People could be at risk if they accidentally drink the water or come into direct contact with the contaminated groundwater (militarycontamination)”. The way towns keep the residents from coming in contact with the possible risks of

Groundwater is water that seeps through the ground and gets stored in aquifers. The supply of groundwater is always changing because it is constantly used and replenished. The groundwater supply replenishes and grows due to rain and snow melt and can decrease due to things like droughts and heavy usage. Depending on the type of surface of the ground as much as 20 percent of the rain and snow melt can seep into the ground or as little as 5 percent (Raymond, 1988). Areas where as much as

There are three main mechanisms by which the chemical composition of groundwater, which is our natural source of drinking water, may be changed: by natural processes, by man's waste-disposal practices such as those for sanitary wastes, liquid industrial wastes, solid wastes, and radioactive wastes, and by spills, leaks, and agricultural activities and other sources unrelated to disposal. The degree of risk posed by contaminants varies according to many factors. These include the volume and toxicity of the contaminant, its concentration in the aquifer, its persistence in the environment, and the degree of human and environmental exposure to the contaminant. In addition, the number of persons affected, or likely to be affected, over time and the percentage of available groundwater both locally and regionally should be taken into consideration. If the contaminants in the groundwater exceed the standards set for drinking water by the federal government, for example, then the water is hazardous for the use for which it was designated under the standards. These standards include, however, only a limited number of chemicals, and thus they do not necessarily protect humans or the environment against either the short-term or the long-term effects of every contaminant that might be found in

The Great Lakes, though fairly clean, are contaminated with some deadly chemicals that have slipped by human filtration into the lakes. These emerging chemicals have been determined to pose some health risk to humans and surrounding ecosystems and are used by society, but are unregulated or inadequately regulated retardants (Miller-Branovacki, Lindsay, "Water Resources and Urban Waste Water (Week #8)"). More specifically an emerging contaminant is one which is not historically widely distributed, nor a concern, however are now persistent and bioaccumulative making them a concern for the environment. The three major categories for emerging contaminants are; endocrine disrupting compounds (EDCs), Pharmaceutical and personal care

Often, toxic substances are being drained into the air, waterways, and undergrounds wells. According to the report by Environmental Protection Agency (EPA), over 60 million pounds of deadly chemicals are produced by industries in Florida. Notably, Florida’s water has been suffering mercury contamination until the state’s department of migration issues a circular regularly for regulations of eating freshwater fish in the region (Florida Fish and Wildlife Conservation Commission). In fact, such metals emanate from coal combustion’s emissions which run into water bodies. Not to mention, pesticides and herbicides utilized by government and homeowners pollute the environment (Florida Fish and Wildlife Conservation Commission). Indeed, all chemicals released into the atmosphere find themselves in rivers.

The use of chlorine revolutionized pool sanitation and cleanliness in the early 1900s. While there have been large improvements in the construction of pools since the mid-twentieth century, the products available for sanitation and the policies regarding them remain mostly the same today. Chlorine is excellent at keeping bacteria levels down in pools, but there are still improvements to be made and caution must be used during pool maintenance. Chlorine can cause deterioration of the cornea and respiratory issues, including an increase in asthma among individuals who frequent indoor pools. Additionally, chlorinated water runoff from pools and hot tubs into waterways can be detrimental to wildlife, even at rates as low as 0.011 ppm (Olsen,

A half-mile neighborhood, in the town of Woburn, has a staggering 8 cases of Leukemia amongst children -- a rate that is three times the national average. These cases were discovered following the construction of local Wells G and H, both of which received complaints of water quality. Upon investigation, we discovered that the contamination of both of the wells is likely a significant factor in the health of Woburn residents. Pollutants used by companies in the area, trichloroethylene, are known to cause Leukemia. The Massachusetts Department of Environmental Quality Engineering discovered high amounts of trichloroethylene in wells G and well H. This chemical is commonly as a cleaning fluid -- the most efficient way to dispose of it being to simply discard the waste into a secluded body of water. In the case of Woburn, trichloroethylene seeped into soil which would later contaminate the water in both wells after they were built. Following the infrastructure of the water supply, the contaminated drinking water made its way to the neighborhood that would later experience the tragic loss of two children, and the following diagnosis of Leukemia in 6 others. We are hereby setting out to prove that the

7. The Safe Drinking Water Act of 1974 established the basic framework for protecting the drinking water of the United States. Most ground water used for drinking water occurs near the earth’s surface and is easily contaminated .The major concern is the potential contamination of underground sources of the drinking water by any of the hundreds or thousands of subsurface wastewater disposal .Waste disposal wells dispose of approximately more than 11% of the nation’s toxic fluid waste. The injection wells can be good or bad and cause a major problem. Some of the wells are used many different ways like for a aquifer recharge and the production of oil, gas, or minerals. Also for improper usage as disposal of toxic and hazardous waste. The EPA

These contaminations of the areas were discovered in 1981. The public wells draws water from Olean creek, and they were constructed in the 1970s to relieve the situation of water shortage for a surface water treatment plant. However, excessive leaves of trichloroethylene (TCE) were discovered in public wells in late 1980, and so the use of the wells was discontinued. Some suspected contaminations have been identified. After a supplemental RI/FS study to investigated thirteen properties for the presence of contamination at four of the properties as the main sources of VOC and TCE contamination to the former Loohn’s Dry cleans.

With the vast diversity of pollutants being introduced to these waters, it is becoming more and more difficult to analyze and identify the exact effects each pollutant has on the water quality as well as the organisms living in them (Howe and Clark, 2014). Scientists, though, have discovered new ways of identifying these negative effects the pollutants have by analyzing certain

Groundwater pollution is a major problem that is growing in all over the world. Of course the united states America also facing this problem. People of Mississippi State are worried about groundwater pollution due to the several human activities. Groundwater is a main source of their water supply. Disposal of solid waste in landfills is an economic option for many municipalities in developing countries where alternatives like incineration and composting are costly. However, groundwater pollution from the leachate generated within the landfill and migrating through the bottom liner material into the underlying groundwater aquifers remains a major public health concern I studied chemical parameters of groundwater in Alcorn State University as a part of my project.

Everyday pesticides are dumped into our environment. Over time most of the pesticides make thier way to a source of water, whether it's groundwater or a body of water. According to Lewis Regenstein author of "America the Poisoned" two thirds of the nation's lakes have serious pollution problems. 80% of 3,700 urban lakes in the United States are destroyed. More than 94 million residents could use these lakes for recreational use or for a source of water (169). Cincinnati's drinking water contains about 700 chemicals. 90% of them did not exist 20 years ago. The main sources of most of these chemical pollutants are municipal sewage, industrial discharges, and runoffs from farming areas. There are also several other chemicals in America's drinking water. Although hazardous, there are approximately 60 chemicals that are mixed into water in the process of treating it. Unlike rivers or lakes, underground supplies are not processed at treatment plants before being used by humans. "More than one hundred million of our citizens depend in a whole or in part on underground as sources of drinking water (Beck qtd. in Regenstein 172). Once groundwater becomes contaminated, there is usually no way to clean it.

Hinkley groundwater contamination refers to Pacific Gas and Electric Company (PG&E) dumping millions gallons of chromium-tainted wastewater into local wastewater spreading ponds around the town of Hinkley, California. PG&E used chromium VI which is one of the cheapest and

Water is the lifeblood of every living creature on earth. Approximately 70 percent of the earth's surface is covered with water. Thought the wonders of nature, water can take on many different forms, form the water we drink, to the ice we use to chill a glass of lemonade, to the water vapor used to steam clean equipment equipment. It is easy to understand the significance water plays in our lives, but it may be much more difficult ot understand the water that exists below the earth's surface, called groundwater.