Water Pollution Events by https://padlet.com/devunberistain/wgkyz467coak By: Devun Beristain, P5 en-us 2018-02-25 18:35:16 UTC 2018-02-26 19:22:20 UTC hello@padlet.com https://padlet-assets.s3.amazonaws.com/icons/Soccerball.png Deepwater Horizon (BP) Spill- April 20, 2010 devunberistain https://padlet.com/devunberistain/wgkyz467coak/wish/235125151 - This is one of the biggest industrial disasters ever recorded. 
- Petroleum spilled into the Gulf of Mexico after a wellhead blowout, caused by defective cement. 
- Point source
- They cleaned up by using skimmer boats & floating booms to protect the beaches and wetlands. 
- Almost 5 million pounds of oily material removed from beaches. 
- Dolphins and many other wildlife were killed as a result of the oil spill. 
- Long term- oil could remain in the food chain for many years. ]]> 2018-02-25 18:35:37 UTC https://padlet.com/devunberistain/wgkyz467coak/wish/235125151 Exxon Valdez Tanker- March 24, 1989 devunberistain https://padlet.com/devunberistain/wgkyz467coak/wish/235127339 - The Exxon Valdez Tanker struck a reef in Alaska and spilled 10.8 million gallons of crude oil 
- Causes haven't been officially determined but it is known that the workers may have been tired and not paying attention. 
- Also, the Captain had been drinking leading up to the grounding of the ship. 
- Point source
- 100,000 to 250,000 seabirds were killed from the oil
- They used skimmers and booms to "clean" but only 10% of the total oil was actually cleaned up. 
- Long term- loss of species because the oil lasted longer than expected. ]]> 2018-02-25 18:50:19 UTC https://padlet.com/devunberistain/wgkyz467coak/wish/235127339 Camp Lejeune Contamination- 1953-1987 devunberistain https://padlet.com/devunberistain/wgkyz467coak/wish/235128495 - US Marine Corps members & families at the base in North Carolina bathed and ingested tap water that was contaminated with harmful chemicals. 
- The chemical levels were between 240 and 3400 times the safety level in the water. 
- May have been caused by a nearby dry cleaner disposing of chemical waste, chemical cleaners used to clean machinery, and maybe underground fuel tank leaks. 
- Non-point source
- A number of individuals later developed cancer or other ailments. 
- Long term- future generations of original residents may be exposed to cancer. ]]> 2018-02-25 18:57:47 UTC https://padlet.com/devunberistain/wgkyz467coak/wish/235128495 Gold King Mine Spill- August 5, 2015 devunberistain https://padlet.com/devunberistain/wgkyz467coak/wish/235129657 - Workers in Silverton, Colorado caused the release of toxic wastewater into the Animas River watershed. 
- They accidentally destroyed the plug holding water inside the mine, spilling 3 million gallons of mine wastewater. 
- Point source
- Animas River was temporality closed 
- Rivers color changed to orange for a short period of time. 
- There were ongoing water supply & irrigation issues. 
- Long term- unknown because sedimentation should dilute the pollutants.
]]> 2018-02-25 19:05:46 UTC https://padlet.com/devunberistain/wgkyz467coak/wish/235129657 Love Canal Contamination- 1976 devunberistain https://padlet.com/devunberistain/wgkyz467coak/wish/235130637 - In Niagara Falls, numerous contaminants were dumped into a landfill including hydrogen and fly ash as well as residential garbage. 
- This creates toxic vapors that people ingested. 
- The dumping was from Hooker Chemical Company. 
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- Birth defects were obtained for some children as a result of the toxins. 
- The cleaned it by reburying most of the toxic area which took 21 years and $400 million to accomplish 
- Long term- no one can really live there due to the possibility of being exposed to the vapors still. ]]> 2018-02-25 19:12:50 UTC https://padlet.com/devunberistain/wgkyz467coak/wish/235130637 Pacific Gas & Electric Chromium Contamination- 1952-1966 devunberistain https://padlet.com/devunberistain/wgkyz467coak/wish/235131999 - PG&E dumed about 370 milllion gallons of chromium tainted wastewater into unlined ponds in Hinckley, CA. 
- The contaminated water percolated into the groundwater which resulted in groundwater pollution. 
- Point source
- Obviously people became sick and confused as to why it took so long for them to be notified about the toxins.
- PG&E built a concrete wall barrier to contain the plume. 
- They spent over $750 million on cleaning up the chromium. 
- Long term- Chromium 6 could cause cancer from intense exposure. ]]> 2018-02-25 19:23:07 UTC https://padlet.com/devunberistain/wgkyz467coak/wish/235131999 Cuyahoga River Fires- 1868 devunberistain https://padlet.com/devunberistain/wgkyz467coak/wish/235132928 - This river in Ohio was so polluted that it caught on fire a total of 13 times on different occasions. 
- Caused by sludge & oil dumped into the river that is susceptible to igniting into a fire. 
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- Largest fire in 1952 caused $1 million in damage to boats and a bridge. 
- The 1969 fire helped begin water pollution control activities such as the Clean Water Act. 
- Long term- pollution still exists due to runoff & other non-point sources. ]]> 2018-02-25 19:29:06 UTC https://padlet.com/devunberistain/wgkyz467coak/wish/235132928 Woburn, Massachusetts Water Contamination- 1970's devunberistain https://padlet.com/devunberistain/wgkyz467coak/wish/235133940 - Two companies in Woburn were suspected of contaminating the groundwater by improperly disposing of trichloroethylene & perchloroethylene into wells. 
- There were high levels of chemical contamination found in wells used by the residents. 
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- Woburn remain contaminated despite a $21 million cleanup effort.
- There was a high incidence of childhood leukemia and other illnesses. 
- Long term- future generations had birth defects. ]]> 2018-02-25 19:36:16 UTC https://padlet.com/devunberistain/wgkyz467coak/wish/235133940 Elk River Chemical Spill- January 9, 2014 devunberistain https://padlet.com/devunberistain/wgkyz467coak/wish/235135029 - A chemical MCHM (4-Methylcyclohexanemethanol) was released from a facility into the Elk River in West Virginia. 
- 10,000 gallons were leaked into the river. 
- May have been caused by the tank being damaged from being frozen from the recent cold weather. 
- Point source
- Resulted in 300,000 residents not having potable water. 
- Since it was in a river, there was high dilution so there wasn't an environmental impact or any long term effects. ]]> 2018-02-25 19:44:13 UTC https://padlet.com/devunberistain/wgkyz467coak/wish/235135029 Milwaukee Disease Outbreak- 1993 devunberistain https://padlet.com/devunberistain/wgkyz467coak/wish/235135913 - Largest waterborne disease outbreak in documented US history. 
- Cryptosporidium passed through the filtration system at a water treatment plant in Wisconsin. 
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- 403,000 residents became ill with the stomach cramps and dehydration caused by the pathogen. 
- Resulted in the plant being shut down. ]]> 2018-02-25 19:51:00 UTC https://padlet.com/devunberistain/wgkyz467coak/wish/235135913 Coal Ash Pond Drinking Water Contamination- 2015 devunberistain https://padlet.com/devunberistain/wgkyz467coak/wish/235136550 - The toxic coal ash pits leaked into a city in North Carolina's water supply, which contaminated all of the drinking water. 
- Point source
- People drank the water so that in turn made them sick. 
- I couldn't find any info about this one. ]]> 2018-02-25 19:55:41 UTC https://padlet.com/devunberistain/wgkyz467coak/wish/235136550 Gulf of Mexico Dead Zone- Present day devunberistain https://padlet.com/devunberistain/wgkyz467coak/wish/235137508 - The Mississippi River dumps nitrogen and phosphorus into the Gulf of Mexico at the mouth of the river. 
- This then creates a hypoxic zone (low oxygen).  
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- Fish and many other animals can't live there because there isn't enough oxygen in the water to survive. 
- It has yet to be cleaned up because it is still there today. ]]> 2018-02-25 20:03:21 UTC https://padlet.com/devunberistain/wgkyz467coak/wish/235137508 Hudson River PCB Contamination- 1947-1977 devunberistain https://padlet.com/devunberistain/wgkyz467coak/wish/235138112 - General Electric polluted the Hudson river in New Jersey by dispensing polychlorinated biphenyls (PCB's). 
- Point source 
- It caused harmful effects to wildlife and people who ate fish from the river or drank the water. 
- This event began the implementation of wastewater discharge permits. 
- They cleaned up the contaminants through the process of dredging. 
- Fish are still effected today through the mutations they had to adapt with. 
- Long term- humans may have neurological disorders, lower IQ, and even short term memory loss. ]]> 2018-02-25 20:07:55 UTC https://padlet.com/devunberistain/wgkyz467coak/wish/235138112