List of Superfund sites in Minnesota

This is a list of Superfund sites in Minnesota designated under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) environmental law. The CERCLA federal law of 1980 authorized the United States Environmental Protection Agency

United States Environmental Protection Agency

The U.S. Environmental Protection Agency is an agency of the federal government of the United States charged with protecting human health and the environment, by writing and enforcing regulations based on laws passed by Congress...

(EPA) to create a list of polluted

Pollution

Pollution is the introduction of contaminants into a natural environment that causes instability, disorder, harm or discomfort to the ecosystem i.e. physical systems or living organisms. Pollution can take the form of chemical substances or energy, such as noise, heat or light...

locations requiring a long-term response to clean up hazardous material contaminations. These locations are known as Superfund

Superfund

Superfund is the common name for the Comprehensive Environmental Response, Compensation, and Liability Act of 1980 , a United States federal law designed to clean up sites contaminated with hazardous substances...

sites, and are placed on the National Priorities List

National Priorities List

The National Priorities List is the list of hazardous waste sites in the United States eligible for long-term remedial action financed under the federal Superfund program. Environmental Protection Agency regulations outline a formal process for assessing hazardous waste sites and placing them on...

(NPL). The NPL guides the EPA in "determining which sites warrant further investigation" for environmental remediation. As of May 4, 2010, there were 25 Superfund sites on the National Priorities List in Minnesota

Minnesota

Minnesota is a U.S. state located in the Midwestern United States. The twelfth largest state of the U.S., it is the twenty-first most populous, with 5.3 million residents. Minnesota was carved out of the eastern half of the Minnesota Territory and admitted to the Union as the thirty-second state...

. 21 others have been cleaned up and removed from the list; none are currently proposed for addition.

Superfund sites

CERCLIS ID	Name	County	Reason
MND980904023	Adrian Municipal Well Field	Nobles Nobles County, Minnesota Nobles County is a county located in the U.S. state of Minnesota. As of 2010, the population was 21,378. Its county seat is Worthington.-Geography:...	Groundwater pollution by VOCs including benzene Benzene Benzene is an organic chemical compound. It is composed of 6 carbon atoms in a ring, with 1 hydrogen atom attached to each carbon atom, with the molecular formula C6H6.... and toluene Toluene Toluene, formerly known as toluol, is a clear, water-insoluble liquid with the typical smell of paint thinners. It is a mono-substituted benzene derivative, i.e., one in which a single hydrogen atom from the benzene molecule has been replaced by a univalent group, in this case CH3.It is an aromatic... . Contaminated municipal drinking wells have been closed and underground storage tanks near the site have been removed.
MND980898068	Agate Lake Scrapyard	Cass Cass County, Minnesota Cass County is a county located in the U.S. state of Minnesota. As of 2010, the population was 28,567. Its county seat is Walker. A portion of the Leech Lake Indian Reservation is in the county.-Geography:...	Groundwater contamination by VOCs including TCE Trichloroethylene The chemical compound trichloroethylene is a chlorinated hydrocarbon commonly used as an industrial solvent. It is a clear non-flammable liquid with a sweet smell. It should not be confused with the similar 1,1,1-trichloroethane, which is commonly known as chlorothene.The IUPAC name is... , benzene Benzene Benzene is an organic chemical compound. It is composed of 6 carbon atoms in a ring, with 1 hydrogen atom attached to each carbon atom, with the molecular formula C6H6.... , toluene Toluene Toluene, formerly known as toluol, is a clear, water-insoluble liquid with the typical smell of paint thinners. It is a mono-substituted benzene derivative, i.e., one in which a single hydrogen atom from the benzene molecule has been replaced by a univalent group, in this case CH3.It is an aromatic... and methylene chloride and soil contamination by PCBs, dioxins, furan Furan Furan is a heterocyclic organic compound, consisting of a five-membered aromatic ring with four carbon atoms and one oxygen. The class of compounds containing such rings are also referred to as furans.... s and lead Lead Lead is a main-group element in the carbon group with the symbol Pb and atomic number 82. Lead is a soft, malleable poor metal. It is also counted as one of the heavy metals. Metallic lead has a bluish-white color after being freshly cut, but it soon tarnishes to a dull grayish color when exposed... .
MND980823975	Arrowhead Refinery Company	St. Louis St. Louis County, Minnesota St. Louis County is a county located in the U.S. state of Minnesota. As of 2010, the population was 200,226. Its county seat is Duluth. It is the largest county by total area in Minnesota, and the second largest in the United States east of the Mississippi River; in land area alone, after Aroostook...	Highly acidic sludge, soil and sediment were contaminated by VOCs, PAHs Polycyclic aromatic hydrocarbon Polycyclic aromatic hydrocarbons , also known as poly-aromatic hydrocarbons or polynuclear aromatic hydrocarbons, are potent atmospheric pollutants that consist of fused aromatic rings and do not contain heteroatoms or carry substituents. Naphthalene is the simplest example of a PAH... , petroleum Petroleum Petroleum or crude oil is a naturally occurring, flammable liquid consisting of a complex mixture of hydrocarbons of various molecular weights and other liquid organic compounds, that are found in geologic formations beneath the Earth's surface. Petroleum is recovered mostly through oil drilling... hydrocarbons and lead Lead Lead is a main-group element in the carbon group with the symbol Pb and atomic number 82. Lead is a soft, malleable poor metal. It is also counted as one of the heavy metals. Metallic lead has a bluish-white color after being freshly cut, but it soon tarnishes to a dull grayish color when exposed... .
MND982425209	Baytown Township Ground Water Plume	Washington Washington County, Minnesota Washington County is a county established in 1849 in the U.S. state of Minnesota. As of 2010, the population was 238,136. Its county seat is Stillwater.-History:...	TCE Trichloroethylene The chemical compound trichloroethylene is a chlorinated hydrocarbon commonly used as an industrial solvent. It is a clear non-flammable liquid with a sweet smell. It should not be confused with the similar 1,1,1-trichloroethane, which is commonly known as chlorothene.The IUPAC name is... contamination of a groundwater aquifer used for local drinking water supplies, from a metal-working facility and possibly from Lake Elmo Airport Lake Elmo Airport Lake Elmo Airport is a public airport located just outside the city of Lake Elmo in Washington County, Minnesota, about 12 miles east of the central business district of St. Paul. The airport covers and has two runways. There are more than 54,000 takeoffs and landings annually, and 237 aircraft... .
MND053417515	Boise Cascade/Onan Corp./Medtronic, Inc.	Anoka Anoka County, Minnesota Anoka County is the fourth-most populous county in the U.S. state of Minnesota. The county is bordered by the counties of Isanti on the north, Chisago and Washington on the east, Hennepin and Ramsey on the south, Sherburne on the west, and the Mississippi River on the southwest.As of 2010, Anoka...	Soil, sediment and groundwater contamination by creosote Creosote Creosote is the portion of chemical products obtained by the distillation of a tar that remains heavier than water, notably useful for its anti-septic and preservative properties... , phenol Phenol Phenol, also known as carbolic acid, phenic acid, is an organic compound with the chemical formula C6H5OH. It is a white crystalline solid. The molecule consists of a phenyl , bonded to a hydroxyl group. It is produced on a large scale as a precursor to many materials and useful compounds... s and other organic compound Organic compound An organic compound is any member of a large class of gaseous, liquid, or solid chemical compounds whose molecules contain carbon. For historical reasons discussed below, a few types of carbon-containing compounds such as carbides, carbonates, simple oxides of carbon, and cyanides, as well as the... s, from former wood treatment operations. The groundwater is used for local drinking water supply.
MND000686196	Burlington Northern (Brainerd/Baxter)	Crow Wing Crow Wing County, Minnesota Crow Wing County is a county located in the U.S. state of Minnesota. As of 2010, the population was 62,500. Its county seat is Brainerd.-Geography:...	Soil and groundwater contamination and risk of surface water contamination by creosote Creosote Creosote is the portion of chemical products obtained by the distillation of a tar that remains heavier than water, notably useful for its anti-septic and preservative properties... , PAHs Polycyclic aromatic hydrocarbon Polycyclic aromatic hydrocarbons , also known as poly-aromatic hydrocarbons or polynuclear aromatic hydrocarbons, are potent atmospheric pollutants that consist of fused aromatic rings and do not contain heteroatoms or carry substituents. Naphthalene is the simplest example of a PAH... , oil and grease, salts and phenol Phenol Phenol, also known as carbolic acid, phenic acid, is an organic compound with the chemical formula C6H5OH. It is a white crystalline solid. The molecule consists of a phenyl , bonded to a hydroxyl group. It is produced on a large scale as a precursor to many materials and useful compounds... s from former wood treatment operations.
MND981191570	Dakhue Sanitary Landfill	Dakota Dakota County, Minnesota Dakota County is the third most populous county in the U.S. state of Minnesota. The county is bordered by the Minnesota and Mississippi Rivers on the north, and the state of Wisconsin on the east. Dakota County comprises the southeast portion of seven-county Minneapolis-St. Paul, the thirteenth...	Groundwater contamination by VOCs, chloroform Chloroform Chloroform is an organic compound with formula CHCl3. It is one of the four chloromethanes. The colorless, sweet-smelling, dense liquid is a trihalomethane, and is considered somewhat hazardous... and heavy metals, including cadmium Cadmium Cadmium is a chemical element with the symbol Cd and atomic number 48. This soft, bluish-white metal is chemically similar to the two other stable metals in group 12, zinc and mercury. Similar to zinc, it prefers oxidation state +2 in most of its compounds and similar to mercury it shows a low... and lead Lead Lead is a main-group element in the carbon group with the symbol Pb and atomic number 82. Lead is a soft, malleable poor metal. It is also counted as one of the heavy metals. Metallic lead has a bluish-white color after being freshly cut, but it soon tarnishes to a dull grayish color when exposed... .
MND981088180	East Bethel Demolition Landfill	Anoka Anoka County, Minnesota Anoka County is the fourth-most populous county in the U.S. state of Minnesota. The county is bordered by the counties of Isanti on the north, Chisago and Washington on the east, Hennepin and Ramsey on the south, Sherburne on the west, and the Mississippi River on the southwest.As of 2010, Anoka...	Soil contamination by VOCs, including toluene Toluene Toluene, formerly known as toluol, is a clear, water-insoluble liquid with the typical smell of paint thinners. It is a mono-substituted benzene derivative, i.e., one in which a single hydrogen atom from the benzene molecule has been replaced by a univalent group, in this case CH3.It is an aromatic... and vinyl chloride Vinyl chloride Vinyl chloride is the organochloride with the formula H2C:CHCl. It is also called vinyl chloride monomer, VCM or chloroethene. This colorless compound is an important industrial chemical chiefly used to produce the polymer polyvinyl chloride . At ambient pressure and temperature, vinyl chloride... . An aquifer, which provides drinking water to some local residents, was contaminated by VOCs, barium Barium Barium is a chemical element with the symbol Ba and atomic number 56. It is the fifth element in Group 2, a soft silvery metallic alkaline earth metal. Barium is never found in nature in its pure form due to its reactivity with air. Its oxide is historically known as baryta but it reacts with... , cadmium Cadmium Cadmium is a chemical element with the symbol Cd and atomic number 48. This soft, bluish-white metal is chemically similar to the two other stable metals in group 12, zinc and mercury. Similar to zinc, it prefers oxidation state +2 in most of its compounds and similar to mercury it shows a low... , mercury Mercury (element) Mercury is a chemical element with the symbol Hg and atomic number 80. It is also known as quicksilver or hydrargyrum... and lead Lead Lead is a main-group element in the carbon group with the symbol Pb and atomic number 82. Lead is a soft, malleable poor metal. It is also counted as one of the heavy metals. Metallic lead has a bluish-white color after being freshly cut, but it soon tarnishes to a dull grayish color when exposed... , though most residents use a deeper aquifer. Local wetland and surface water may have been at risk from contamination.
MND006481543	FMC Corporation (Fridley Plant)	Anoka Anoka County, Minnesota Anoka County is the fourth-most populous county in the U.S. state of Minnesota. The county is bordered by the counties of Isanti on the north, Chisago and Washington on the east, Hennepin and Ramsey on the south, Sherburne on the west, and the Mississippi River on the southwest.As of 2010, Anoka...	Soil was contaminated by TCE Trichloroethylene The chemical compound trichloroethylene is a chlorinated hydrocarbon commonly used as an industrial solvent. It is a clear non-flammable liquid with a sweet smell. It should not be confused with the similar 1,1,1-trichloroethane, which is commonly known as chlorothene.The IUPAC name is... . Groundwater is contaminated by VOCs including TCE, which probably contributed to the detection of VOCs in the Minneapolis drinking water supply.
MND038384004	Freeway Sanitary Landfill	Dakota Dakota County, Minnesota Dakota County is the third most populous county in the U.S. state of Minnesota. The county is bordered by the Minnesota and Mississippi Rivers on the north, and the state of Wisconsin on the east. Dakota County comprises the southeast portion of seven-county Minneapolis-St. Paul, the thirteenth...	Groundwater contamination by VOCs (including benzene Benzene Benzene is an organic chemical compound. It is composed of 6 carbon atoms in a ring, with 1 hydrogen atom attached to each carbon atom, with the molecular formula C6H6.... , ethyl benzene and xylene Xylene Xylene encompasses three isomers of dimethylbenzene. The isomers are distinguished by the designations ortho- , meta- , and para- , which specify to which carbon atoms the two methyl groups are attached... ) and heavy metals (including arsenic Arsenic Arsenic is a chemical element with the symbol As, atomic number 33 and relative atomic mass 74.92. Arsenic occurs in many minerals, usually in conjunction with sulfur and metals, and also as a pure elemental crystal. It was first documented by Albertus Magnus in 1250.Arsenic is a metalloid... , chromium Chromium Chromium is a chemical element which has the symbol Cr and atomic number 24. It is the first element in Group 6. It is a steely-gray, lustrous, hard metal that takes a high polish and has a high melting point. It is also odorless, tasteless, and malleable... , copper Copper Copper is a chemical element with the symbol Cu and atomic number 29. It is a ductile metal with very high thermal and electrical conductivity. Pure copper is soft and malleable; an exposed surface has a reddish-orange tarnish... , lead Lead Lead is a main-group element in the carbon group with the symbol Pb and atomic number 82. Lead is a soft, malleable poor metal. It is also counted as one of the heavy metals. Metallic lead has a bluish-white color after being freshly cut, but it soon tarnishes to a dull grayish color when exposed... and manganese Manganese Manganese is a chemical element, designated by the symbol Mn. It has the atomic number 25. It is found as a free element in nature , and in many minerals... ). Risk of transfer of contaminants to Burnsville municipal water supply and the Minnesota River Minnesota River The Minnesota River is a tributary of the Mississippi River, approximately 332 miles long, in the U.S. state of Minnesota. It drains a watershed of nearly , in Minnesota and about in South Dakota and Iowa.... .
MND985701309	Fridley Commons Park Well Field	Anoka Anoka County, Minnesota Anoka County is the fourth-most populous county in the U.S. state of Minnesota. The county is bordered by the counties of Isanti on the north, Chisago and Washington on the east, Hennepin and Ramsey on the south, Sherburne on the west, and the Mississippi River on the southwest.As of 2010, Anoka...	VOCs, including TCE Trichloroethylene The chemical compound trichloroethylene is a chlorinated hydrocarbon commonly used as an industrial solvent. It is a clear non-flammable liquid with a sweet smell. It should not be confused with the similar 1,1,1-trichloroethane, which is commonly known as chlorothene.The IUPAC name is... have been discovered in some municipal wells, but at levels below Federal drinking water limits. The situation is being monitored but no remedial action is currently felt necessary.
MND051441731	General Mills/Henkel Corporation	Hennepin Hennepin County, Minnesota Hennepin County is a county located in the U.S. state of Minnesota, named in honor of the 17th-century explorer Father Louis Hennepin. As of 2010 the population was 1,152,425. Its county seat is Minneapolis. It is by far the most populous county in Minnesota; more than one in five Minnesotans live...	The site is a former research laboratory. Groundwater is contaminated by VOCs, including TCE Trichloroethylene The chemical compound trichloroethylene is a chlorinated hydrocarbon commonly used as an industrial solvent. It is a clear non-flammable liquid with a sweet smell. It should not be confused with the similar 1,1,1-trichloroethane, which is commonly known as chlorothene.The IUPAC name is... , benzene Benzene Benzene is an organic chemical compound. It is composed of 6 carbon atoms in a ring, with 1 hydrogen atom attached to each carbon atom, with the molecular formula C6H6.... , chloroform Chloroform Chloroform is an organic compound with formula CHCl3. It is one of the four chloromethanes. The colorless, sweet-smelling, dense liquid is a trihalomethane, and is considered somewhat hazardous... , toluene Toluene Toluene, formerly known as toluol, is a clear, water-insoluble liquid with the typical smell of paint thinners. It is a mono-substituted benzene derivative, i.e., one in which a single hydrogen atom from the benzene molecule has been replaced by a univalent group, in this case CH3.It is an aromatic... and xylene Xylene Xylene encompasses three isomers of dimethylbenzene. The isomers are distinguished by the designations ortho- , meta- , and para- , which specify to which carbon atoms the two methyl groups are attached... s and soil was contaminated by VOCs from solvent disposal.
MND044799856	Joslyn Manufacturing & Supply Company	Hennepin Hennepin County, Minnesota Hennepin County is a county located in the U.S. state of Minnesota, named in honor of the 17th-century explorer Father Louis Hennepin. As of 2010 the population was 1,152,425. Its county seat is Minneapolis. It is by far the most populous county in Minnesota; more than one in five Minnesotans live...	Soil and groundwater contamination by PCP Pentachlorophenol Pentachlorophenol is an organochlorine compound used as a pesticide and a disinfectant. First produced in the 1930s, it is marketed under many trade names... , PAH Polycyclic aromatic hydrocarbon Polycyclic aromatic hydrocarbons , also known as poly-aromatic hydrocarbons or polynuclear aromatic hydrocarbons, are potent atmospheric pollutants that consist of fused aromatic rings and do not contain heteroatoms or carry substituents. Naphthalene is the simplest example of a PAH... s, phenol Phenol Phenol, also known as carbolic acid, phenic acid, is an organic compound with the chemical formula C6H5OH. It is a white crystalline solid. The molecule consists of a phenyl , bonded to a hydroxyl group. It is produced on a large scale as a precursor to many materials and useful compounds... and heavy metals from former wood treatment operations.
MND000686071	Koch Refining Company/N-Ren Corporation Pine Bend Refinery The Pine Bend Refinery is the largest oil refinery in Minnesota, located in the Twin Cities suburbs of Rosemount and Inver Grove Heights next to southern split of U.S. Highway 52 and Minnesota State Highway 55. The refinery is notable for being the largest in the United States to be located in a...	Dakota Dakota County, Minnesota Dakota County is the third most populous county in the U.S. state of Minnesota. The county is bordered by the Minnesota and Mississippi Rivers on the north, and the state of Wisconsin on the east. Dakota County comprises the southeast portion of seven-county Minneapolis-St. Paul, the thirteenth...	The site is an active oil refinery. Groundwater is contaminated by VOCs, PAHs Polycyclic aromatic hydrocarbon Polycyclic aromatic hydrocarbons , also known as poly-aromatic hydrocarbons or polynuclear aromatic hydrocarbons, are potent atmospheric pollutants that consist of fused aromatic rings and do not contain heteroatoms or carry substituents. Naphthalene is the simplest example of a PAH... phenol Phenol Phenol, also known as carbolic acid, phenic acid, is an organic compound with the chemical formula C6H5OH. It is a white crystalline solid. The molecule consists of a phenyl , bonded to a hydroxyl group. It is produced on a large scale as a precursor to many materials and useful compounds... s and lead Lead Lead is a main-group element in the carbon group with the symbol Pb and atomic number 82. Lead is a soft, malleable poor metal. It is also counted as one of the heavy metals. Metallic lead has a bluish-white color after being freshly cut, but it soon tarnishes to a dull grayish color when exposed... ; soil is contaminated by PAHs and VOCs including benzene Benzene Benzene is an organic chemical compound. It is composed of 6 carbon atoms in a ring, with 1 hydrogen atom attached to each carbon atom, with the molecular formula C6H6.... , toluene Toluene Toluene, formerly known as toluol, is a clear, water-insoluble liquid with the typical smell of paint thinners. It is a mono-substituted benzene derivative, i.e., one in which a single hydrogen atom from the benzene molecule has been replaced by a univalent group, in this case CH3.It is an aromatic... and xylene Xylene Xylene encompasses three isomers of dimethylbenzene. The isomers are distinguished by the designations ortho- , meta- , and para- , which specify to which carbon atoms the two methyl groups are attached... s.
MND000819359	Koppers Coke	Ramsey Ramsey County, Minnesota Ramsey County is a county located in the U.S. state of Minnesota, founded in 1849. As of 2010, the population was 508,640. Its county seat is St. Paul, which is also Minnesota's state capital. The county is named for Alexander Ramsey , the first governor of the Minnesota Territory...	Soil and groundwater contamination by VOCs, semi-VOCs, PAHs Polycyclic aromatic hydrocarbon Polycyclic aromatic hydrocarbons , also known as poly-aromatic hydrocarbons or polynuclear aromatic hydrocarbons, are potent atmospheric pollutants that consist of fused aromatic rings and do not contain heteroatoms or carry substituents. Naphthalene is the simplest example of a PAH... , metals and cyanide Cyanide A cyanide is a chemical compound that contains the cyano group, -C≡N, which consists of a carbon atom triple-bonded to a nitrogen atom. Cyanides most commonly refer to salts of the anion CN−. Most cyanides are highly toxic.... s from a former coking plant.
MND980904049	Kummer Sanitary Landfill	Beltrami Beltrami County, Minnesota Beltrami County is a county located in the northern part of the U.S. state of Minnesota. As of 2010, the population was 44,442. Its county seat is Bemidji. Portions of the Leech Lake and Red Lake Indian reservations are in the county. The northernmost portion of the Mississippi River flows...	The site is a closed landfill with a history of operational violations. Site groundwater contains by VOCs, including vinyl chloride Vinyl chloride Vinyl chloride is the organochloride with the formula H2C:CHCl. It is also called vinyl chloride monomer, VCM or chloroethene. This colorless compound is an important industrial chemical chiefly used to produce the polymer polyvinyl chloride . At ambient pressure and temperature, vinyl chloride... , xylene Xylene Xylene encompasses three isomers of dimethylbenzene. The isomers are distinguished by the designations ortho- , meta- , and para- , which specify to which carbon atoms the two methyl groups are attached... s, carbon tetrachloride Carbon tetrachloride Carbon tetrachloride, also known by many other names is the organic compound with the formula CCl4. It was formerly widely used in fire extinguishers, as a precursor to refrigerants, and as a cleaning agent... and naphthalene Naphthalene Naphthalene is an organic compound with formula . It is a white crystalline solid with a characteristic odor that is detectable at concentrations as low as 0.08 ppm by mass. As an aromatic hydrocarbon, naphthalene's structure consists of a fused pair of benzene rings... and is at risk of contaminating nearby Lake Bemidji Lake Bemidji Lake Bemidji is a small glacially-formed lake, approximately 11 mi² in area, in northern Minnesota in the United States. Located less than 50 mi downstream from the source of the Mississippi River, it both receives and is drained by the Mississippi.-Geography:The lake is located in southern... and wetlands.
MND059680165	Kurt Manufacturing Company	Anoka Anoka County, Minnesota Anoka County is the fourth-most populous county in the U.S. state of Minnesota. The county is bordered by the counties of Isanti on the north, Chisago and Washington on the east, Hennepin and Ramsey on the south, Sherburne on the west, and the Mississippi River on the southwest.As of 2010, Anoka...	The site is an active electronic component manufacturing facility. Shallow groundwater and soil are contaminated by PCE, TCA Trichloroethane Trichloroethane can refer to either of two isomeric chemical compounds:* 1,1,1-Trichloroethane * 1,1,2-Trichloroethane... , TCE and DCE Dichloroethene Dichloroethene or Dichloroethylene, often abbreviated as DCE, can refer to any one of several isomeric forms of the organochloride with the molecular formula C2H2Cl2:There are three isomers:1,1-Dichloroethene1,2-Dichloroethene... .
MND981090483	LaGrand Sanitary Landfill	Douglas Douglas County, Minnesota As of the census of 2000, there were 32,821 people, 13,276 households, and 9,027 families residing in the county. The population density was 52 people per square mile . There were 16,694 housing units at an average density of 26 per square mile...	Groundwater contamination by volatile hydrocarbon Hydrocarbon In organic chemistry, a hydrocarbon is an organic compound consisting entirely of hydrogen and carbon. Hydrocarbons from which one hydrogen atom has been removed are functional groups, called hydrocarbyls.... s.
MND980792469	Lehillier/Mankato Site	Blue Earth Blue Earth County, Minnesota Blue Earth County is a county located in the U.S. state of Minnesota. As of 2010, the population was 64,013. Its county seat is Mankato.Blue Earth County is part of the Mankato–North Mankato Metropolitan Statistical Area.-Geography:...	Groundwater contamination by VOCs, including TCE Trichloroethylene The chemical compound trichloroethylene is a chlorinated hydrocarbon commonly used as an industrial solvent. It is a clear non-flammable liquid with a sweet smell. It should not be confused with the similar 1,1,1-trichloroethane, which is commonly known as chlorothene.The IUPAC name is... from uncontrolled dumping. Domestic wells were contaminated and a municipal well was close to the plume, though no contamination was detected there.
MND980904072	Long Prairie Ground Water Contamination	Todd Todd County, Minnesota -External links:*...	A former dry cleaning operation contaminated soil and groundwater with PCE Tetrachloroethylene Tetrachloroethylene, also known under its systematic name tetrachloroethene and many other names, is a chlorocarbon with the formula Cl2C=CCl2. It is a colourless liquid widely used for dry cleaning of fabrics, hence it is sometimes called "dry-cleaning fluid." It has a sweet odor detectable by... , TCE Trichloroethylene The chemical compound trichloroethylene is a chlorinated hydrocarbon commonly used as an industrial solvent. It is a clear non-flammable liquid with a sweet smell. It should not be confused with the similar 1,1,1-trichloroethane, which is commonly known as chlorothene.The IUPAC name is... , DCE and vinyl chloride Vinyl chloride Vinyl chloride is the organochloride with the formula H2C:CHCl. It is also called vinyl chloride monomer, VCM or chloroethene. This colorless compound is an important industrial chemical chiefly used to produce the polymer polyvinyl chloride . At ambient pressure and temperature, vinyl chloride... . Private drinking water wells were contaminated and municipal wells were closed from 1983 to 1985.
MND006192694	MacGillis & Gibbs/Bell Lumber & Pole Company	Ramsey Ramsey County, Minnesota Ramsey County is a county located in the U.S. state of Minnesota, founded in 1849. As of 2010, the population was 508,640. Its county seat is St. Paul, which is also Minnesota's state capital. The county is named for Alexander Ramsey , the first governor of the Minnesota Territory...	Groundwater, sediments, and soil are contaminated with PAHs Polycyclic aromatic hydrocarbon Polycyclic aromatic hydrocarbons , also known as poly-aromatic hydrocarbons or polynuclear aromatic hydrocarbons, are potent atmospheric pollutants that consist of fused aromatic rings and do not contain heteroatoms or carry substituents. Naphthalene is the simplest example of a PAH... , PCP Pentachlorophenol Pentachlorophenol is an organochlorine compound used as a pesticide and a disinfectant. First produced in the 1930s, it is marketed under many trade names... and heavy metals such as copper Copper Copper is a chemical element with the symbol Cu and atomic number 29. It is a ductile metal with very high thermal and electrical conductivity. Pure copper is soft and malleable; an exposed surface has a reddish-orange tarnish... , chromium Chromium Chromium is a chemical element which has the symbol Cr and atomic number 24. It is the first element in Group 6. It is a steely-gray, lustrous, hard metal that takes a high polish and has a high melting point. It is also odorless, tasteless, and malleable... and arsenic Arsenic Arsenic is a chemical element with the symbol As, atomic number 33 and relative atomic mass 74.92. Arsenic occurs in many minerals, usually in conjunction with sulfur and metals, and also as a pure elemental crystal. It was first documented by Albertus Magnus in 1250.Arsenic is a metalloid... from wood treatment operations. Municipal wells are unaffected but private wells have been contaminated and there is a risk of contamination to local wetlands.
MND980792287	Morris Arsenic Dump	Stevens Stevens County, Minnesota As of the census of 2000, there were 10,053 people, 3,751 households, and 2,366 families residing in the county. The population density was 18 people per square mile . There were 4,074 housing units at an average density of 7 per square mile...	Stevens County reportedly buried around 1500 lb (680.4 kg) of surplus arsenic Arsenic Arsenic is a chemical element with the symbol As, atomic number 33 and relative atomic mass 74.92. Arsenic occurs in many minerals, usually in conjunction with sulfur and metals, and also as a pure elemental crystal. It was first documented by Albertus Magnus in 1250.Arsenic is a metalloid... -containing pesticide in a disused gravel pit in the 1940s. Arsenic was present in soil, groundwater and private drinking water well samples but at levels within the naturally occurring range in Minnesota, which do not pose a health hazard. No cleanup action was taken.
MN3170022914	Naval Industrial Reserve Ordnance Plant	County	Groundwater and soil are contaminated by solvents, including TCE Trichloroethylene The chemical compound trichloroethylene is a chlorinated hydrocarbon commonly used as an industrial solvent. It is a clear non-flammable liquid with a sweet smell. It should not be confused with the similar 1,1,1-trichloroethane, which is commonly known as chlorothene.The IUPAC name is... and methylene dichloride and PAHs Polycyclic aromatic hydrocarbon Polycyclic aromatic hydrocarbons , also known as poly-aromatic hydrocarbons or polynuclear aromatic hydrocarbons, are potent atmospheric pollutants that consist of fused aromatic rings and do not contain heteroatoms or carry substituents. Naphthalene is the simplest example of a PAH... were found in surface soil. Groundwater flows into the Mississippi River Mississippi River The Mississippi River is the largest river system in North America. Flowing entirely in the United States, this river rises in western Minnesota and meanders slowly southwards for to the Mississippi River Delta at the Gulf of Mexico. With its many tributaries, the Mississippi's watershed drains... , upstream of the Minneapolis drinking water treatment plant uptake.
MN7213820908	New Brighton/Arden Hills/Twin Cities Army Ammunition Plant Twin Cities Army Ammunition Plant The Twin Cities Army Ammunition Plant is an inactive United States Army ammunition plant located in the Ramsey County, Minnesota in the suburbs of Arden Hills and New Brighton, bounded by County Road I to the north, Interstate 35W to the west, U.S. Route 10 to the southwest, County Highway 96 to... (US Army United States Army The United States Army is the main branch of the United States Armed Forces responsible for land-based military operations. It is the largest and oldest established branch of the U.S. military, and is one of seven U.S. uniformed services... )	Ramsey Ramsey County, Minnesota Ramsey County is a county located in the U.S. state of Minnesota, founded in 1849. As of 2010, the population was 508,640. Its county seat is St. Paul, which is also Minnesota's state capital. The county is named for Alexander Ramsey , the first governor of the Minnesota Territory...	Groundwater, soil, sediments, and surface water contaminated with volatile organic compounds (VOCs), semi-VOCs, metals, PCBs Polychlorinated biphenyl Polychlorinated biphenyls are a class of organic compounds with 2 to 10 chlorine atoms attached to biphenyl, which is a molecule composed of two benzene rings. The chemical formula for PCBs is C12H10-xClx... , cyanide Cyanide A cyanide is a chemical compound that contains the cyano group, -C≡N, which consists of a carbon atom triple-bonded to a nitrogen atom. Cyanides most commonly refer to salts of the anion CN−. Most cyanides are highly toxic.... , pesticide Pesticide Pesticides are substances or mixture of substances intended for preventing, destroying, repelling or mitigating any pest.A pesticide may be a chemical unicycle, biological agent , antimicrobial, disinfectant or device used against any pest... s, and explosives.
MND097891634	NL Industries/Taracorp/Golden Auto	Hennepin Hennepin County, Minnesota Hennepin County is a county located in the U.S. state of Minnesota, named in honor of the 17th-century explorer Father Louis Hennepin. As of 2010 the population was 1,152,425. Its county seat is Minneapolis. It is by far the most populous county in Minnesota; more than one in five Minnesotans live...	Soil was contaminated by lead Lead Lead is a main-group element in the carbon group with the symbol Pb and atomic number 82. Lead is a soft, malleable poor metal. It is also counted as one of the heavy metals. Metallic lead has a bluish-white color after being freshly cut, but it soon tarnishes to a dull grayish color when exposed... by former smelting operations.
MND006154017	Nutting Truck & Caster Company	Rice Rice County, Minnesota As of the census of 2000, there were 56,665 people, 18,888 households, and 13,353 families residing in the county. The population density was 114 people per square mile . There were 20,061 housing units at an average density of 40 per square mile...	Groundwater contamination by TCE Trichloroethylene The chemical compound trichloroethylene is a chlorinated hydrocarbon commonly used as an industrial solvent. It is a clear non-flammable liquid with a sweet smell. It should not be confused with the similar 1,1,1-trichloroethane, which is commonly known as chlorothene.The IUPAC name is... and DCE. Municipal wells were also contaminated by TCE but there is no definitive link to the site.
MND980609515	Oakdale Dump	Washington Washington County, Minnesota Washington County is a county established in 1849 in the U.S. state of Minnesota. As of 2010, the population was 238,136. Its county seat is Stillwater.-History:...	Hazardous waste, including VOCs such as isopropyl ether and benzene Benzene Benzene is an organic chemical compound. It is composed of 6 carbon atoms in a ring, with 1 hydrogen atom attached to each carbon atom, with the molecular formula C6H6.... were disposed of at three sites; one has low-level heavy metal contamination. Residential drinking water wells were contaminated.
MND980904056	Oak Grove Sanitary Landfill	Anoka Anoka County, Minnesota Anoka County is the fourth-most populous county in the U.S. state of Minnesota. The county is bordered by the counties of Isanti on the north, Chisago and Washington on the east, Hennepin and Ramsey on the south, Sherburne on the west, and the Mississippi River on the southwest.As of 2010, Anoka...	Groundwater, leachate and sediments contaminated by VOCs, phenol Phenol Phenol, also known as carbolic acid, phenic acid, is an organic compound with the chemical formula C6H5OH. It is a white crystalline solid. The molecule consists of a phenyl , bonded to a hydroxyl group. It is produced on a large scale as a precursor to many materials and useful compounds... s and heavy metals. Groundwater also contaminated by phthalates.
MND000874354	Olmsted County Sanitary Landfill	Olmsted Olmsted County, Minnesota As of the census of 2000, there were 124,277 people, 47,807 households, and 32,317 families residing in the county. The population density was 190 people per square mile . There were 49,422 housing units at an average density of 76 per square mile...	The first cell of the landfill was unlined and the second poorly lined, resulting in groundwater contamination by VOCs and heavy metals, including chromium Chromium Chromium is a chemical element which has the symbol Cr and atomic number 24. It is the first element in Group 6. It is a steely-gray, lustrous, hard metal that takes a high polish and has a high melting point. It is also odorless, tasteless, and malleable... , cadmium Cadmium Cadmium is a chemical element with the symbol Cd and atomic number 48. This soft, bluish-white metal is chemically similar to the two other stable metals in group 12, zinc and mercury. Similar to zinc, it prefers oxidation state +2 in most of its compounds and similar to mercury it shows a low... and lead Lead Lead is a main-group element in the carbon group with the symbol Pb and atomic number 82. Lead is a soft, malleable poor metal. It is also counted as one of the heavy metals. Metallic lead has a bluish-white color after being freshly cut, but it soon tarnishes to a dull grayish color when exposed... and extensive leachate seaps. Waste has been capped and a leachate collection system installed.
MND980609572	Perham Arsenic Site	Otter Tail Otter Tail County, Minnesota Otter Tail County is a county located in the U.S. state of Minnesota. As of 2010, the population was 57,303. Its county seat is Fergus Falls.-History:...	Groundwater and soil are contaminated by arsenic Arsenic Arsenic is a chemical element with the symbol As, atomic number 33 and relative atomic mass 74.92. Arsenic occurs in many minerals, usually in conjunction with sulfur and metals, and also as a pure elemental crystal. It was first documented by Albertus Magnus in 1250.Arsenic is a metalloid... pesticide dumped in a shallow pit in 1947. The site was redeveloped for commercial use and eleven people were poisoned by a well installed in 1972. The well and dump have been capped and groundwater treatment is ongoing.
MND000245795	Pine Bend Sanitary Landfill	Dakota Dakota County, Minnesota Dakota County is the third most populous county in the U.S. state of Minnesota. The county is bordered by the Minnesota and Mississippi Rivers on the north, and the state of Wisconsin on the east. Dakota County comprises the southeast portion of seven-county Minneapolis-St. Paul, the thirteenth...	Groundwater VOC contamination from leachate.
MND980609804	Reilly Tar & Chem (St. Louis Park Plant)	Hennepin Hennepin County, Minnesota Hennepin County is a county located in the U.S. state of Minnesota, named in honor of the 17th-century explorer Father Louis Hennepin. As of 2010 the population was 1,152,425. Its county seat is Minneapolis. It is by far the most populous county in Minnesota; more than one in five Minnesotans live...	Soil and groundwater are contaminated by PAHs Polycyclic aromatic hydrocarbon Polycyclic aromatic hydrocarbons , also known as poly-aromatic hydrocarbons or polynuclear aromatic hydrocarbons, are potent atmospheric pollutants that consist of fused aromatic rings and do not contain heteroatoms or carry substituents. Naphthalene is the simplest example of a PAH... from former coal tar Coal tar Coal tar is a brown or black liquid of extremely high viscosity, which smells of naphthalene and aromatic hydrocarbons. Coal tar is among the by-products when coal iscarbonized to make coke or gasified to make coal gas... distillation and wood treatment operations. Contaminated groundwater aquifer is used by around 43,000 people and seven municipal wells have been closed.
MND980904064	Ritari Post & Pole	Wadena Wadena County, Minnesota As of the census of 2000, there were 13,713 people, 5,426 households, and 3,608 families residing in the county. The population density was 26 people per square mile . There were 6,334 housing units at an average density of 12 per square mile...	Soil and groundwater contamination by PCP Pentachlorophenol Pentachlorophenol is an organochlorine compound used as a pesticide and a disinfectant. First produced in the 1930s, it is marketed under many trade names... and dioxins and groundwater contamination by phenol Phenol Phenol, also known as carbolic acid, phenic acid, is an organic compound with the chemical formula C6H5OH. It is a white crystalline solid. The molecule consists of a phenyl , bonded to a hydroxyl group. It is produced on a large scale as a precursor to many materials and useful compounds... s from former wood treatment operations.
MND981002256	St. Augusta Sanitary Landfill/Engen Dump	Stearns Stearns County, Minnesota As of the census of 2000, there were 133,166 people, 47,604 households, and 32,132 families residing in the county. The population density was 99 people per square mile . There were 50,291 housing units at an average density of 37 per square mile...	Groundwater is contaminated by heavy metals, including arsenic Arsenic Arsenic is a chemical element with the symbol As, atomic number 33 and relative atomic mass 74.92. Arsenic occurs in many minerals, usually in conjunction with sulfur and metals, and also as a pure elemental crystal. It was first documented by Albertus Magnus in 1250.Arsenic is a metalloid... , barium Barium Barium is a chemical element with the symbol Ba and atomic number 56. It is the fifth element in Group 2, a soft silvery metallic alkaline earth metal. Barium is never found in nature in its pure form due to its reactivity with air. Its oxide is historically known as baryta but it reacts with... and lead Lead Lead is a main-group element in the carbon group with the symbol Pb and atomic number 82. Lead is a soft, malleable poor metal. It is also counted as one of the heavy metals. Metallic lead has a bluish-white color after being freshly cut, but it soon tarnishes to a dull grayish color when exposed... , VOCs, atrazine Atrazine Atrazine, 2-chloro-4--6--s-triazine, an organic compound consisting of an s-triazine-ring is a widely used herbicide. Its use is controversial due to widespread contamination in drinking water and its associations with birth defects and menstrual problems when consumed by humans at concentrations... and phthalates.
MND039045430	St. Louis River Site	St. Louis St. Louis County, Minnesota St. Louis County is a county located in the U.S. state of Minnesota. As of 2010, the population was 200,226. Its county seat is Duluth. It is the largest county by total area in Minnesota, and the second largest in the United States east of the Mississippi River; in land area alone, after Aroostook...	Past industrial and disposal practices have contaminated river sediments with tar, PAHs Polycyclic aromatic hydrocarbon Polycyclic aromatic hydrocarbons , also known as poly-aromatic hydrocarbons or polynuclear aromatic hydrocarbons, are potent atmospheric pollutants that consist of fused aromatic rings and do not contain heteroatoms or carry substituents. Naphthalene is the simplest example of a PAH... , VOCs, cyanide Cyanide A cyanide is a chemical compound that contains the cyano group, -C≡N, which consists of a carbon atom triple-bonded to a nitrogen atom. Cyanides most commonly refer to salts of the anion CN−. Most cyanides are highly toxic.... , naphthalene Naphthalene Naphthalene is an organic compound with formula . It is a white crystalline solid with a characteristic odor that is detectable at concentrations as low as 0.08 ppm by mass. As an aromatic hydrocarbon, naphthalene's structure consists of a fused pair of benzene rings... and heavy metals including mercury Mercury (element) Mercury is a chemical element with the symbol Hg and atomic number 80. It is also known as quicksilver or hydrargyrum... . Operations at the US Steel Duluth Duluth, Minnesota Duluth is a port city in the U.S. state of Minnesota and is the county seat of Saint Louis County. The fourth largest city in Minnesota, Duluth had a total population of 86,265 in the 2010 census. Duluth is also the second largest city that is located on Lake Superior after Thunder Bay, Ontario,... Works site caused soil, sediment, shallow groundwater and surface water contamination by semi-VOCs, PAHs Polycyclic aromatic hydrocarbon Polycyclic aromatic hydrocarbons , also known as poly-aromatic hydrocarbons or polynuclear aromatic hydrocarbons, are potent atmospheric pollutants that consist of fused aromatic rings and do not contain heteroatoms or carry substituents. Naphthalene is the simplest example of a PAH... and metals.
MND057597940	St. Regis Paper Company	Cass Cass County, Minnesota Cass County is a county located in the U.S. state of Minnesota. As of 2010, the population was 28,567. Its county seat is Walker. A portion of the Leech Lake Indian Reservation is in the county.-Geography:...	Groundwater, soil and sediment contamination by PAHs Polycyclic aromatic hydrocarbon Polycyclic aromatic hydrocarbons , also known as poly-aromatic hydrocarbons or polynuclear aromatic hydrocarbons, are potent atmospheric pollutants that consist of fused aromatic rings and do not contain heteroatoms or carry substituents. Naphthalene is the simplest example of a PAH... , metals, PCP Pentachlorophenol Pentachlorophenol is an organochlorine compound used as a pesticide and a disinfectant. First produced in the 1930s, it is marketed under many trade names... , dioxins and furan Furan Furan is a heterocyclic organic compound, consisting of a five-membered aromatic ring with four carbon atoms and one oxygen. The class of compounds containing such rings are also referred to as furans.... s from former wood treatment operations.
MND980609614	South Andover Site	Anoka Anoka County, Minnesota Anoka County is the fourth-most populous county in the U.S. state of Minnesota. The county is bordered by the counties of Isanti on the north, Chisago and Washington on the east, Hennepin and Ramsey on the south, Sherburne on the west, and the Mississippi River on the southwest.As of 2010, Anoka...	Waste disposal and salvage operations contaminated soil and groundwater with vinyl chloride Vinyl chloride Vinyl chloride is the organochloride with the formula H2C:CHCl. It is also called vinyl chloride monomer, VCM or chloroethene. This colorless compound is an important industrial chemical chiefly used to produce the polymer polyvinyl chloride . At ambient pressure and temperature, vinyl chloride... and other VOCs. Soil contamination has been remediated and groundwater is not thought to pose a health risk.
MNN000509136	South Minneapolis Residential Soil Contamination	Hennepin Hennepin County, Minnesota Hennepin County is a county located in the U.S. state of Minnesota, named in honor of the 17th-century explorer Father Louis Hennepin. As of 2010 the population was 1,152,425. Its county seat is Minneapolis. It is by far the most populous county in Minnesota; more than one in five Minnesotans live...	Arsenic Arsenic Arsenic is a chemical element with the symbol As, atomic number 33 and relative atomic mass 74.92. Arsenic occurs in many minerals, usually in conjunction with sulfur and metals, and also as a pure elemental crystal. It was first documented by Albertus Magnus in 1250.Arsenic is a metalloid... contamination of soil over 1480 acres (6 km²), including 3,500 residential properties, along with other properties. Contamination is thought to have come from a former pesticide Pesticide Pesticides are substances or mixture of substances intended for preventing, destroying, repelling or mitigating any pest.A pesticide may be a chemical unicycle, biological agent , antimicrobial, disinfectant or device used against any pest... manufacturing plant.
MN8570024275	Twin Cities Air Force Reserve Base (Small Arms Range Landfill)	Hennepin Hennepin County, Minnesota Hennepin County is a county located in the U.S. state of Minnesota, named in honor of the 17th-century explorer Father Louis Hennepin. As of 2010 the population was 1,152,425. Its county seat is Minneapolis. It is by far the most populous county in Minnesota; more than one in five Minnesotans live...	Arsenic Arsenic Arsenic is a chemical element with the symbol As, atomic number 33 and relative atomic mass 74.92. Arsenic occurs in many minerals, usually in conjunction with sulfur and metals, and also as a pure elemental crystal. It was first documented by Albertus Magnus in 1250.Arsenic is a metalloid... , beryllium Beryllium Beryllium is the chemical element with the symbol Be and atomic number 4. It is a divalent element which occurs naturally only in combination with other elements in minerals. Notable gemstones which contain beryllium include beryl and chrysoberyl... , cadmium Cadmium Cadmium is a chemical element with the symbol Cd and atomic number 48. This soft, bluish-white metal is chemically similar to the two other stable metals in group 12, zinc and mercury. Similar to zinc, it prefers oxidation state +2 in most of its compounds and similar to mercury it shows a low... , lead Lead Lead is a main-group element in the carbon group with the symbol Pb and atomic number 82. Lead is a soft, malleable poor metal. It is also counted as one of the heavy metals. Metallic lead has a bluish-white color after being freshly cut, but it soon tarnishes to a dull grayish color when exposed... , nickel Nickel Nickel is a chemical element with the chemical symbol Ni and atomic number 28. It is a silvery-white lustrous metal with a slight golden tinge. Nickel belongs to the transition metals and is hard and ductile... , selenium Selenium Selenium is a chemical element with atomic number 34, chemical symbol Se, and an atomic mass of 78.96. It is a nonmetal, whose properties are intermediate between those of adjacent chalcogen elements sulfur and tellurium... and vanadium Vanadium Vanadium is a chemical element with the symbol V and atomic number 23. It is a hard, silvery gray, ductile and malleable transition metal. The formation of an oxide layer stabilizes the metal against oxidation. The element is found only in chemically combined form in nature... contamination of groundwater.
MND022949192	Union Scrap Iron & Metal Company	Hennepin Hennepin County, Minnesota Hennepin County is a county located in the U.S. state of Minnesota, named in honor of the 17th-century explorer Father Louis Hennepin. As of 2010 the population was 1,152,425. Its county seat is Minneapolis. It is by far the most populous county in Minnesota; more than one in five Minnesotans live...	Battery recycling at two sites resulted in sludges and soil contaminated by PCBs and heavy metals including lead Lead Lead is a main-group element in the carbon group with the symbol Pb and atomic number 82. Lead is a soft, malleable poor metal. It is also counted as one of the heavy metals. Metallic lead has a bluish-white color after being freshly cut, but it soon tarnishes to a dull grayish color when exposed... , arsenic Arsenic Arsenic is a chemical element with the symbol As, atomic number 33 and relative atomic mass 74.92. Arsenic occurs in many minerals, usually in conjunction with sulfur and metals, and also as a pure elemental crystal. It was first documented by Albertus Magnus in 1250.Arsenic is a metalloid... , cadmium Cadmium Cadmium is a chemical element with the symbol Cd and atomic number 48. This soft, bluish-white metal is chemically similar to the two other stable metals in group 12, zinc and mercury. Similar to zinc, it prefers oxidation state +2 in most of its compounds and similar to mercury it shows a low... , nickel Nickel Nickel is a chemical element with the chemical symbol Ni and atomic number 28. It is a silvery-white lustrous metal with a slight golden tinge. Nickel belongs to the transition metals and is hard and ductile... and copper Copper Copper is a chemical element with the symbol Cu and atomic number 29. It is a ductile metal with very high thermal and electrical conductivity. Pure copper is soft and malleable; an exposed surface has a reddish-orange tarnish... . Airborne lead levels were high and there was potential for groundwater and surface water contamination. No significant contamination remains after removal actions.
MND980613780	University of Minnesota (Rosemount Research Center)	Dakota Dakota County, Minnesota Dakota County is the third most populous county in the U.S. state of Minnesota. The county is bordered by the Minnesota and Mississippi Rivers on the north, and the state of Wisconsin on the east. Dakota County comprises the southeast portion of seven-county Minneapolis-St. Paul, the thirteenth...	Soil contamination by lead Lead Lead is a main-group element in the carbon group with the symbol Pb and atomic number 82. Lead is a soft, malleable poor metal. It is also counted as one of the heavy metals. Metallic lead has a bluish-white color after being freshly cut, but it soon tarnishes to a dull grayish color when exposed... , copper Copper Copper is a chemical element with the symbol Cu and atomic number 29. It is a ductile metal with very high thermal and electrical conductivity. Pure copper is soft and malleable; an exposed surface has a reddish-orange tarnish... and PCBs from tenants and VOCs, primarily chloroform Chloroform Chloroform is an organic compound with formula CHCl3. It is one of the four chloromethanes. The colorless, sweet-smelling, dense liquid is a trihalomethane, and is considered somewhat hazardous... , from university laboratory waste disposal.
MND981002249	Waite Park Wells	Stearns Stearns County, Minnesota As of the census of 2000, there were 133,166 people, 47,604 households, and 32,132 families residing in the county. The population density was 99 people per square mile . There were 50,291 housing units at an average density of 37 per square mile...	Municipal wells are contaminated by TCE Trichloroethylene The chemical compound trichloroethylene is a chlorinated hydrocarbon commonly used as an industrial solvent. It is a clear non-flammable liquid with a sweet smell. It should not be confused with the similar 1,1,1-trichloroethane, which is commonly known as chlorothene.The IUPAC name is... and PCE Tetrachloroethylene Tetrachloroethylene, also known under its systematic name tetrachloroethene and many other names, is a chlorocarbon with the formula Cl2C=CCl2. It is a colourless liquid widely used for dry cleaning of fabrics, hence it is sometimes called "dry-cleaning fluid." It has a sweet odor detectable by... from two industrial sites. There is a light non-aqueous phase liquid Light non-aqueous phase liquid A Light Non-Aqueous Phase Liquid is a groundwater contaminant that is not soluble and has a lower density than water, which is the opposite of DNAPL. Once LNAPL infiltrates through the soil, it will stop at the height of the water table since LNAPL is less dense than water... layer of petroleum Petroleum Petroleum or crude oil is a naturally occurring, flammable liquid consisting of a complex mixture of hydrocarbons of various molecular weights and other liquid organic compounds, that are found in geologic formations beneath the Earth's surface. Petroleum is recovered mostly through oil drilling... products above the water table, elevated levels of PCBs, lead Lead Lead is a main-group element in the carbon group with the symbol Pb and atomic number 82. Lead is a soft, malleable poor metal. It is also counted as one of the heavy metals. Metallic lead has a bluish-white color after being freshly cut, but it soon tarnishes to a dull grayish color when exposed... and other heavy metals in the soil, and PCBs and VOCs in the groundwater.
MND980704738	Washington County Landfill	Washington Washington County, Minnesota Washington County is a county established in 1849 in the U.S. state of Minnesota. As of 2010, the population was 238,136. Its county seat is Stillwater.-History:...	VOC contamination of soil and groundwater, including private wells. Potentially explosive methane Methane Methane is a chemical compound with the chemical formula . It is the simplest alkane, the principal component of natural gas, and probably the most abundant organic compound on earth. The relative abundance of methane makes it an attractive fuel... concentrations.
MND980609119	Waste Disposal Engineering	Anoka Anoka County, Minnesota Anoka County is the fourth-most populous county in the U.S. state of Minnesota. The county is bordered by the counties of Isanti on the north, Chisago and Washington on the east, Hennepin and Ramsey on the south, Sherburne on the west, and the Mississippi River on the southwest.As of 2010, Anoka...	Groundwater, soil gas and surface water contamination by VOCs.
MND006252233	Whittaker Corporation	Hennepin Hennepin County, Minnesota Hennepin County is a county located in the U.S. state of Minnesota, named in honor of the 17th-century explorer Father Louis Hennepin. As of 2010 the population was 1,152,425. Its county seat is Minneapolis. It is by far the most populous county in Minnesota; more than one in five Minnesotans live...	Groundwater and soil contamination by heavy metals, including cadmium Cadmium Cadmium is a chemical element with the symbol Cd and atomic number 48. This soft, bluish-white metal is chemically similar to the two other stable metals in group 12, zinc and mercury. Similar to zinc, it prefers oxidation state +2 in most of its compounds and similar to mercury it shows a low... and lead Lead Lead is a main-group element in the carbon group with the symbol Pb and atomic number 82. Lead is a soft, malleable poor metal. It is also counted as one of the heavy metals. Metallic lead has a bluish-white color after being freshly cut, but it soon tarnishes to a dull grayish color when exposed... and VOCs.
MND980034516	Windom Dump	Cottonwood Cottonwood County, Minnesota Cottonwood County is a county located in the U.S. state of Minnesota. As of 2010, the population was 11,687. Its county seat is Windom.-History:...	Groundwater contamination by VOCs and heavy metals including arsenic Arsenic Arsenic is a chemical element with the symbol As, atomic number 33 and relative atomic mass 74.92. Arsenic occurs in many minerals, usually in conjunction with sulfur and metals, and also as a pure elemental crystal. It was first documented by Albertus Magnus in 1250.Arsenic is a metalloid... , cadmium Cadmium Cadmium is a chemical element with the symbol Cd and atomic number 48. This soft, bluish-white metal is chemically similar to the two other stable metals in group 12, zinc and mercury. Similar to zinc, it prefers oxidation state +2 in most of its compounds and similar to mercury it shows a low... and chromium Chromium Chromium is a chemical element which has the symbol Cr and atomic number 24. It is the first element in Group 6. It is a steely-gray, lustrous, hard metal that takes a high polish and has a high melting point. It is also odorless, tasteless, and malleable... . Soil contamination by VOCs. There was a risk of contamination of private and municipal drinking wells.

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