The Power of Information

National Drinking Water Database


Artesian Water Company - Wilmington, DE


Serves 201,000 people - Test data available: 2004-2007

This drinking water quality report shows results of tests conducted by the water utility and provided to the Environmental Working Group (EWG) by the Delaware Health and Social Services- Division of Public Health. It is part of EWG's national database that includes 47,667 drinking water utilities and 20 million test results. Water utilities nationwide detected more than 300 pollutants between 2004 and 2009. More than half of these chemicals are unregulated, legal in any amount. Despite this widespread contamination, the federal government invests few resources to protecting rivers, reservoirs, and groundwater from pollution in the first place. The information below summarizes test results for this utility and lists potential health concerns.

 
This Drinking Water System
National Average
Exceed Health GuidelinesTests showing chemicals at concentrations above health guidelines established by federal and state health agencies. These guidelines are typically set at a levels that pose no significant health risk.
54 chemicals
4
Health Standard ExceedencesChemicals detected at concentrations above the legal limit, the Maximum Contaminant Level (MCLs) established by the U.S. EPA. Most MCLs are based on annual averages, so exceeding the MCL for one test does not necessarily indicate that the system is out of compliance.
4 chemicals
0.5
Pollutants FoundThe total number of contaminants detected since 2004, according to data provided by the state water agency.
138 chemicals
8
Tests ConductedThe total number of number of water quality tests conducted by water utilities and recorded in data provided by the state water agency.
50,091 tests
420

Contaminants Exceeding Health Guidelines

ContaminantAverage/
Maximum
Result
Health Limit
Exceeded
Legal Limit
Exceeded

Testing History

-Tested      -Detected      -Over Health Guidelines      -Over Legal Limit*
ManganeseManganese is a naturally occurring element released from mineral deposits as well as industrial use.24.35 ppb
203.5 ppb
Yes
50 ppb
Yes
50 ppb
TetrachloroethyleneTetrachloroethylene (perc) is a common soil and groundwater contaminant used in dry cleaning and as a solvent in automotive and metalworking factories and other industries.0.86 ppb
6.2 ppb
Yes
MCLGA non-enforceable health goal that is set at a level at which no known or anticipated adverse effect on the health of persons occurs and which allows an adequate margin of safety. Source: U.S. Environmental Protection Agency.: 0 ppb
Yes
5 ppb
NitriteNitrite is a chemical that enters water from fertilizer runoff, leaching septic tanks, and erosion of natural deposits.0.04 ppm
1.27 ppm
Yes
1 ppm
Yes
1 ppm
Arsenic (total)Arsenic contaminates drinking water due to mining runoff, erosion of natural deposits, emissions from glass and electronics processing and the use of arsenical compounds as wood preservatives and pesticides.0.42 ppb
10.5 ppb
Yes
MCLGA non-enforceable health goal that is set at a level at which no known or anticipated adverse effect on the health of persons occurs and which allows an adequate margin of safety. Source: U.S. Environmental Protection Agency.: 0 ppb
Yes
10 ppb
BromodichloromethaneBromodichloromethane is a disinfection byproduct from the trihalomethane (THM) family, and is formed when chlorine, chloramines or other disinfectants react with organic and inorganic matter in water.1.14 ppb
10.7 ppb
Yes
MCLGA non-enforceable health goal that is set at a level at which no known or anticipated adverse effect on the health of persons occurs and which allows an adequate margin of safety. Source: U.S. Environmental Protection Agency.: 0 ppb
No
80 ppb
DibromochloromethaneDibromochloromethane is a disinfection byproduct from the trihalomethane (THM) family, and is formed when chlorine, chloramines or other disinfectants react with organic and inorganic matter in water.0.46 ppb
3.6 ppb
Yes
0.4 ppb
No
80 ppb
BromoformBromoform is a disinfection byproduct from the trihalomethane (THM) family, and is formed when chlorine, chloramines or other disinfectants react with organic and inorganic matter in water.0.13 ppb
2.17 ppb
Yes
MCLGA non-enforceable health goal that is set at a level at which no known or anticipated adverse effect on the health of persons occurs and which allows an adequate margin of safety. Source: U.S. Environmental Protection Agency.: 0 ppb
No
80 ppb
Total trihalomethanes (TTHMs)Total trihalomethanes constitute the sum of four disinfection byproducts: chloroform, bromodichloromethane, dibromochloromethane, and bromoform.6.28 ppb
72.8 ppb
Yes
9.8 ppb
No
80 ppb
ChloroformChloroform is a disinfection byproduct from the trihalomethane (THM) family, and is formed when chlorine, chloramines or other disinfectants react with organic and inorganic matter in water.4.19 ppb
65.6 ppb
Yes
5.7 ppb
No
80 ppb
bis(2-chloroethyl) etherBis(2-chloroethyl) ether is a synthetic chemical used as a solvent, cleaner, component of paint and varnish, rust inhibitor and a chemical intermediate in production of pesticides.0.06 ppb
1.33 ppb
Yes
0.03 ppb
Legal at any levelThis is the Federal Limit. State Limits may be lower.
Dichloroacetic acidDichloroacetic acid is a disinfection byproduct regulated by EPA as one of five haloacetic acids that are formed when chlorine, chloramines or other disinfectants react with organic and inorganic matter in water.9.25 ppb
20.5 ppb
Yes
MCLGA non-enforceable health goal that is set at a level at which no known or anticipated adverse effect on the health of persons occurs and which allows an adequate margin of safety. Source: U.S. Environmental Protection Agency.: 0 ppb
No
60 ppb
Total haloacetic acids (HAAs)Total haloacetic acids refers to the sum of the concentrations of five related disinfection byproducts in a water sample: dichloroacetic acid, trichloroacetic acid, monochloroacetic acid, monobromoacetic acid and dibromoacetic acid.19.4 ppb
39.9 ppb
Yes
0.7 ppb
No
60 ppb
TrichloroethyleneTrichloroethylene is used to remove grease from fabricated metal parts and in the production of some textiles; this pollutant comes from metal degreasing sites, metal finishing and rubber processing industries.0.06 ppb
1.75 ppb
Yes
MCLGA non-enforceable health goal that is set at a level at which no known or anticipated adverse effect on the health of persons occurs and which allows an adequate margin of safety. Source: U.S. Environmental Protection Agency.: 0 ppb
No
5 ppb
DieldrinDieldrin is a banned insecticide that is persistent and bioaccumulative, and was historically used on corn, cotton and citrus; it also forms in the environment as a breakdown product of the pesticide aldrin.0.02 ppb
0.55 ppb
Yes
<0.01 ppb
Legal at any levelThis is the Federal Limit. State Limits may be lower.
Di(2-ethylhexyl) phthalateDi(2-ethylhexyl) phthalate is a pollutant from rubber and industrial chemical factories and a leachate from PVC pipes; it is classified by EPA as a probable human carcinogen.0.14 ppb
1.61 ppb
Yes
MCLGA non-enforceable health goal that is set at a level at which no known or anticipated adverse effect on the health of persons occurs and which allows an adequate margin of safety. Source: U.S. Environmental Protection Agency.: 0 ppb
No
6 ppb
Lead (total)Lead is a metal that enters water by corrosion of household plumbing systems, discharge of industrial pollution and erosion of natural deposits.0.61 ppb
9.7 ppb
Yes
MCLGA non-enforceable health goal that is set at a level at which no known or anticipated adverse effect on the health of persons occurs and which allows an adequate margin of safety. Source: U.S. Environmental Protection Agency.: 0 ppb
No
CopperCopper is a naturally occuring metal and drinking water contaminant that enters tap water by corrosion of household plumbing systems and erosion of natural deposits.72.65 ppb
882 ppb
Yes
300 ppb
No
1000 ppb
Dichloromethane (methylene chloride)Dichloromethane is a widely-used paint remover, solvent and metal degreasing agent; it is discharged into the environment from the manufacture of chemicals, textiles, electronics, metals and plastics, pharmaceuticals and pesticides.0.13 ppb
1.93 ppb
Yes
MCLGA non-enforceable health goal that is set at a level at which no known or anticipated adverse effect on the health of persons occurs and which allows an adequate margin of safety. Source: U.S. Environmental Protection Agency.: 0 ppb
No
5 ppb
Heptachlor epoxideHeptachlor epoxide is a beakdown product of heptachlor, a highly toxic and carcinogenic termiticide banned from most applications in the U.S. since 1988.<0.01 ppb
0.03 ppb
Yes
MCLGA non-enforceable health goal that is set at a level at which no known or anticipated adverse effect on the health of persons occurs and which allows an adequate margin of safety. Source: U.S. Environmental Protection Agency.: 0 ppb
No
0.2 ppb
ChlordaneChlordane is a persistent insecticide/termiticide that is likely carcinogenic to humans and has been banned in the U.S. since 1988.0.11 ppb
1.1 ppb
Yes
MCLGA non-enforceable health goal that is set at a level at which no known or anticipated adverse effect on the health of persons occurs and which allows an adequate margin of safety. Source: U.S. Environmental Protection Agency.: 0 ppb
No
2 ppb
PentachlorophenolPentachlorophenol is a carcinogenic pollutant discharged from wood preserving factories.<0.01 ppb
0.26 ppb
Yes
MCLGA non-enforceable health goal that is set at a level at which no known or anticipated adverse effect on the health of persons occurs and which allows an adequate margin of safety. Source: U.S. Environmental Protection Agency.: 0 ppb
No
1 ppb
1,2-Dichloroethane1,2-Dichloroethane is a chemical used in the production of vinyl chloride; it is released as a pollutant from industrial chemical factories.0.01 ppb
0.53 ppb
Yes
MCLGA non-enforceable health goal that is set at a level at which no known or anticipated adverse effect on the health of persons occurs and which allows an adequate margin of safety. Source: U.S. Environmental Protection Agency.: 0 ppb
No
5 ppb
AcrylonitrileAcrylonitrile is a chemical intermediate used in the manufacture of plastics, synthetic rubber, antioxidants, pharmaceuticals and dyes.0.06 ppb
5 ppb
Yes
0.05 ppb
Legal at any levelThis is the Federal Limit. State Limits may be lower.
Alpha particle activityAlpha particles are a form of radiation released from mining waste pollutants and natural sources.0.85 pCi/L
2.06 pCi/L
Yes
MCLGA non-enforceable health goal that is set at a level at which no known or anticipated adverse effect on the health of persons occurs and which allows an adequate margin of safety. Source: U.S. Environmental Protection Agency.: 0 pCi/L
No
15 pCi/L
Gross beta particle activity (mrem/yr)Beta particles are a form of radiation frequently associated with nuclear testing and radioactive mineral deposits.2.6 mrem/yr
2.95 mrem/yr
Yes
MCLGA non-enforceable health goal that is set at a level at which no known or anticipated adverse effect on the health of persons occurs and which allows an adequate margin of safety. Source: U.S. Environmental Protection Agency.: 0 mrem/yr
No
4 mrem/yr
1,1,2,2-Tetrachloroethane1,1,2,2-Tetrachloroethane is a synthetic chemical used for metal degreasing and in the production of paint, cement, paint removers and moth-proofing products.0.01 ppb
1.63 ppb
Yes
0.1 ppb
Legal at any levelThis is the Federal Limit. State Limits may be lower.
1,2-Dibromo-3-chloropropane (DBCP)1,2-Dibromo-3-chloropropane is a persistent pesticide and groundwater contaminant associated with male sterility and severe reproductive toxicity; historically used as a soil fumigant on bananas and pineapples; banned by EPA in early 1980s.<0.01 ppb
0.17 ppb
Yes
MCLGA non-enforceable health goal that is set at a level at which no known or anticipated adverse effect on the health of persons occurs and which allows an adequate margin of safety. Source: U.S. Environmental Protection Agency.: 0 ppb
No
0.2 ppb
Hexachlorobenzene (HCB)Hexachlorobenzene is a pollutant from metal refineries and agricultural chemical factories.<0.01 ppb
0.17 ppb
Yes
MCLGA non-enforceable health goal that is set at a level at which no known or anticipated adverse effect on the health of persons occurs and which allows an adequate margin of safety. Source: U.S. Environmental Protection Agency.: 0 ppb
No
1 ppb
Aroclor 1248Aroclor 1248 is a member of the polychlorinated biphenyl (PCB) group of industrial chemicals used as dielectrics, coolants and lubricants in electrical equipment; PCBs contaminate water by leaching from landfills or other waste deposits.<0.01 ppb
0.17 ppb
Yes
MCLGA non-enforceable health goal that is set at a level at which no known or anticipated adverse effect on the health of persons occurs and which allows an adequate margin of safety. Source: U.S. Environmental Protection Agency.: 0 ppb
No
0.5 ppb
ToxapheneToxaphene is a highly toxic, persistent and bioaccumulative insecticide anticipated to be carcinogenic to people, and banned from use in the U.S. in 1990.<0.01 ppb
0.19 ppb
Yes
MCLGA non-enforceable health goal that is set at a level at which no known or anticipated adverse effect on the health of persons occurs and which allows an adequate margin of safety. Source: U.S. Environmental Protection Agency.: 0 ppb
No
3 ppb
para-para DDDpara-para DDD is an insecticide similar to DDT, and also forms as a metabolite of DDT, a toxic and persistent insecticide banned in the U.S. and most other countries.<0.01 ppb
0.02 ppb
Yes
<0.01 ppb
Legal at any levelThis is the Federal Limit. State Limits may be lower.
p,p'-DDTpara-para DDT is toxic and persistent insecticide banned in the U.S. and most other countries.<0.01 ppb
0.02 ppb
Yes
<0.01 ppb
Legal at any levelThis is the Federal Limit. State Limits may be lower.
beta-LindaneBeta-lindane is a component of the insecticide HCH (hexachlorocyclohexane) formerly used for gardens, lumber and cattle, and phased out of use in the U.S. in the 1970s.<0.01 ppb
0.02 ppb
Yes
<0.01 ppb
Legal at any levelThis is the Federal Limit. State Limits may be lower.
alpha-LindaneAlpha-lindane is a component of the insecticide HCH (hexachlorocyclohexane) formerly used for gardens, lumber and cattle, and phased out of use in the U.S. in the 1970s.<0.01 ppb
0.02 ppb
Yes
<0.01 ppb
Legal at any levelThis is the Federal Limit. State Limits may be lower.
HeptachlorHeptachlor is a highly toxic and carcinogenic termiticide banned from most applications in the U.S. since 1988.<0.01 ppb
0.01 ppb
Yes
MCLGA non-enforceable health goal that is set at a level at which no known or anticipated adverse effect on the health of persons occurs and which allows an adequate margin of safety. Source: U.S. Environmental Protection Agency.: 0 ppb
No
0.4 ppb
Aroclor 1260Aroclor 1260 is a member of the polychlorinated biphenyl (PCB) group of industrial chemicals used as dielectrics, coolants and lubricants in electrical equipment; PCBs contaminate water by leaching from landfills or other waste deposits.<0.01 ppb
0.17 ppb
Yes
MCLGA non-enforceable health goal that is set at a level at which no known or anticipated adverse effect on the health of persons occurs and which allows an adequate margin of safety. Source: U.S. Environmental Protection Agency.: 0 ppb
No
0.5 ppb
Aroclor 1254Aroclor 1254 is a member of the polychlorinated biphenyl (PCB) group of industrial chemicals used as dielectrics, coolants and lubricants in electrical equipment; PCBs contaminate water by leaching from landfills or other waste deposits.<0.01 ppb
0.17 ppb
Yes
MCLGA non-enforceable health goal that is set at a level at which no known or anticipated adverse effect on the health of persons occurs and which allows an adequate margin of safety. Source: U.S. Environmental Protection Agency.: 0 ppb
No
0.5 ppb
AldrinAldrin is a banned insecticide and termiticide previously used for field, forage, vegetable and fruit crops, primarily on corn and cotton; it was also used as a wood preservative.<0.01 ppb
0.02 ppb
Yes
<0.01 ppb
Legal at any levelThis is the Federal Limit. State Limits may be lower.
Aroclor 1016Aroclor 1016 is a member of the polychlorinated biphenyl (PCB) group of industrial chemicals used as dielectrics, coolants and lubricants in electrical equipment; PCBs contaminate water by leaching from landfills or other waste deposits.<0.01 ppb
0.17 ppb
Yes
MCLGA non-enforceable health goal that is set at a level at which no known or anticipated adverse effect on the health of persons occurs and which allows an adequate margin of safety. Source: U.S. Environmental Protection Agency.: 0 ppb
No
0.5 ppb
Aroclor 1221Aroclor 1221 is a member of the polychlorinated biphenyl (PCB) group of industrial chemicals used as dielectrics, coolants and lubricants in electrical equipment; PCBs contaminate water by leaching from landfills or other waste deposits.<0.01 ppb
0.17 ppb
Yes
MCLGA non-enforceable health goal that is set at a level at which no known or anticipated adverse effect on the health of persons occurs and which allows an adequate margin of safety. Source: U.S. Environmental Protection Agency.: 0 ppb
No
0.5 ppb
Aroclor 1232Aroclor 1232 is a member of the polychlorinated biphenyl (PCB) group of industrial chemicals used as dielectrics, coolants and lubricants in electrical equipment; PCBs contaminate water by leaching from landfills or other waste deposits.<0.01 ppb
0.17 ppb
Yes
MCLGA non-enforceable health goal that is set at a level at which no known or anticipated adverse effect on the health of persons occurs and which allows an adequate margin of safety. Source: U.S. Environmental Protection Agency.: 0 ppb
No
0.5 ppb
Aroclor 1242Aroclor 1242 is a member of the polychlorinated biphenyl (PCB) group of industrial chemicals used as dielectrics, coolants and lubricants in electrical equipment; PCBs contaminate water by leaching from landfills or other waste deposits.<0.01 ppb
0.17 ppb
Yes
MCLGA non-enforceable health goal that is set at a level at which no known or anticipated adverse effect on the health of persons occurs and which allows an adequate margin of safety. Source: U.S. Environmental Protection Agency.: 0 ppb
No
0.5 ppb
Indeno[1,2,3-cd]pyreneIndeno(1,2,3-cd)pyrene is a polycyclic aromatic hydrocarbon (PAH) released from incomplete combustion of coal, wood, gasoline and incineration of municipal waste; it is a constituent of gasoline and motor oil and a pollutant from road runoff.<0.01 ppb
0.33 ppb
Yes
<0.01 ppb
Legal at any levelThis is the Federal Limit. State Limits may be lower.
Alachlor (Lasso)Alachlor is a widely-used herbicide applied to corn, soy and sorghum; it is carcinogenic to animals and potentially carcinogenic in people.<0.01 ppb
0.1 ppb
Yes
MCLGA non-enforceable health goal that is set at a level at which no known or anticipated adverse effect on the health of persons occurs and which allows an adequate margin of safety. Source: U.S. Environmental Protection Agency.: 0 ppb
No
2 ppb
AtrazineAtrazine is an endocrine-disrupting herbicide used on corn, sugarcane and sorghum; it is associated with adverse reproductive effects and toxicity to the immune system.<0.01 ppb
0.17 ppb
Yes
0.15 ppb
No
3 ppb
Dibenz[a,h]anthraceneDibenz[a,h]anthracene a polycyclic aromatic hydrocarbon (PAH) released from the incomplete combustion of fossil fuels.<0.01 ppb
0.3 ppb
Yes
<0.01 ppb
Legal at any levelThis is the Federal Limit. State Limits may be lower.
Benzo[a]pyreneBenzo[a]pyrene is a polycyclic aromatic hydrocarbon that contaminates drinking water from leaching coal tar coatings on water distribution pipes and storage liners; it is also a product of combustion.<0.01 ppb
<0.01 ppb
Yes
MCLGA non-enforceable health goal that is set at a level at which no known or anticipated adverse effect on the health of persons occurs and which allows an adequate margin of safety. Source: U.S. Environmental Protection Agency.: 0 ppb
No
0.2 ppb
ChryseneChrysene is a polycyclic aromatic hydrocarbon (PAH) released from the incomplete combustion of fossil fuels.<0.01 ppb
0.53 ppb
Yes
<0.01 ppb
Legal at any levelThis is the Federal Limit. State Limits may be lower.
Benzo[a]anthraceneBenzo[a]anthracene is a polycyclic aromatic hydrocarbon (PAH) released from combustion of fossil fuels and waste incinerators.<0.01 ppb
0.67 ppb
Yes
<0.01 ppb
Legal at any levelThis is the Federal Limit. State Limits may be lower.
Benzo[k]fluorantheneBenzo[k]fluoranthene is a polycyclic aromatic hydrocarbon (PAH) released from combustion of fossil fuels and waste incinerators; it may leach into tap water from water distribution system tanks and pipes lined with coal tar or asphalt.<0.01 ppb
0.63 ppb
Yes
<0.01 ppb
Legal at any levelThis is the Federal Limit. State Limits may be lower.
Cadmium (total)Cadmium is a metal used in the steel and plastic industries; it is released from corrosion of galvanized pipes, runoff from metal refineries, waste batteries and paints; contamination from fertilizers; and erosion of natural deposits.<0.01 ppb
0.6 ppb
Yes
0.04 ppb
No
5 ppb
Ethylene dibromide (EDB)Ethylene dibromide is a a pollutant from petroleum refineries that was formerly used as gasoline additive and a pesticide suspended from use by EPA in 1984.<0.01 ppb
<0.01 ppb
Yes
MCLGA non-enforceable health goal that is set at a level at which no known or anticipated adverse effect on the health of persons occurs and which allows an adequate margin of safety. Source: U.S. Environmental Protection Agency.: 0 ppb
No
0.05 ppb
Benzo[b]fluorantheneBenzo[b]fluoranthene is a polycyclic aromatic hydrocarbon (PAH) released from combustion of organic matter including fossil fuel and wood.0.01 ppb
0.63 ppb
Yes
<0.01 ppb
Legal at any levelThis is the Federal Limit. State Limits may be lower.
Alpha particle activity (excl radon and uranium)Alpha particles are a form of radiation associated with radioactive mining waste pollutants and natural sources.0.16 pCi/L
0.47 pCi/L
Yes
MCLGA non-enforceable health goal that is set at a level at which no known or anticipated adverse effect on the health of persons occurs and which allows an adequate margin of safety. Source: U.S. Environmental Protection Agency.: 0 pCi/L
No
15 pCi/L
NOTE: Each dot in the above graph represents one month.
* Water utilities are noted as exceeding the legal limit if any test is above the maximum contaminant level (MCL). Most MCLs are based on annual averages so exceeding the MCL for one test does not necessarily indicate that the system is out of compliance.

Other Detected Contaminants

ContaminantAverage/
Maximum
Result
Health Limit
Exceeded
Legal Limit
Exceeded

Testing History

-Tested      -Detected      -Over Health Guidelines      -Over Legal Limit*
NitrateNitrate enters drinking water sources from fertilizer runoff, leaching septic tanks, and erosion of natural deposits; it is also emitted by chemical, petrochemical and metal-finishing industries.4.12 ppm
9.1 ppm
No
10 ppm
No
10 ppm
MTBEMTBE (methyl tert-butyl ether) is a fuel additive that had been used as an octane enhancer in unleaded gasoline; it contaminates groundwater due to spillage or leakage at gas stations, and has been banned or scheduled for phaseout in most states.0.26 ppb
2.37 ppb
No
13 ppb
Legal at any levelThis is the Federal Limit. State Limits may be lower.
Barium (total)Barium is a mineral that enters drinking water through drilling and mining waste runoff, discharges from chemical industries and erosion of natural deposits.79.41 ppb
196 ppb
No
700 ppb
No
2000 ppb
TrichlorofluoromethaneTrichlorofluoromethane (Freon 11) is a refrigerant, solvent, chemical intermediate and halocarbon aerosol that was banned in 2000 under the Montreal Protocol because of its ozone-depleting properties.0.28 ppb
5.1 ppb
No
700 ppb
Legal at any levelThis is the Federal Limit. State Limits may be lower.
Selenium (total)Selenium is a naturally occurring element that contaminates water due to mining or petrolum refining, fly-ash from coal-burning power plants, and irrigation of arid farmland soils high in selenium.1.61 ppb
6 ppb
No
50 ppb
No
50 ppb
AcetoneAcetone is a ubiquitous industrial solvent and chemical intermediate used in manufacture of plastic, fibers, cosmetics, photographic film and many other kinds of consumer goods.1.57 ppb
21 ppb
No
6000 ppb
Legal at any levelThis is the Federal Limit. State Limits may be lower.
Trichloroacetic acidTrichloroacetic acid is a disinfection byproduct regulated by EPA as one of five haloacetic acids that are formed when chlorine, chloramines or other disinfectants react with organic and inorganic matter in water.8.91 ppb
19.4 ppb
No
20 ppb
No
60 ppb
Nitrate & nitriteNitrate and nitrite enter water from fertilizer runoff, leaching from septic tanks, and erosion of natural deposits.3.32 ppm
9.1 ppm
No
10 ppm
No
10 ppm
Dibromoacetic acidDibromoacetic acid is a disinfection byproduct regulated by EPA as one of five haloacetic acids that are formed when chlorine, chloramines or other disinfectants react with organic and inorganic matter in water.0.24 ppb
0.92 ppb
NoNo
60 ppb
cis-1,2-Dichloroethylenecis-1,2-Dichloroethylene is a pollutant discharged by various industrial chemical factories from the manufacture of plastic wrap, adhesives and synthetic fiber.0.06 ppb
1 ppb
No
70 ppb
No
70 ppb
Monochloroacetic acidMonochloroacetic acid is a disinfection byproduct regulated by EPA as one of five haloacetic acids that are formed when chlorine, chloramines or other disinfectants react with organic and inorganic matter in water.0.76 ppb
7.14 ppb
No
70 ppb
No
60 ppb
Alpha ChlordaneAlpha chlordane is an isomer of the banned pesticide Chlordane, a termiticide historically applied for home, garden, roadside and agricultural uses.<0.01 ppb
0.03 ppb
NoLegal at any levelThis is the Federal Limit. State Limits may be lower.
Gamma ChlordaneGamma chlordane is an isomer of the highly toxic organochlorine insecticide chlordane banned by EPA; it is bioaccumulative and pollutes the bodies of adults and newborn babies. <0.01 ppb
0.04 ppb
NoLegal at any levelThis is the Federal Limit. State Limits may be lower.
o-Xyleneo-Xylene is a petroleum-derived solvent used in the printing, rubber, and leather industries; it is also used as a cleaning agent, a thinner for paint, and an ingredient in paints and varnishes.0.3 ppb
31 ppb
No
10000 ppb
No
10000 ppb
m- & p- XyleneXylene is a petroleum-derived solvent used in the printing, rubber, and leather industries, and as a cleaning agent, a thinner for paint, and an ingredient in paints and varnishes.0.17 ppb
7.05 ppb
No
10000 ppb
No
10000 ppb
EthylbenzeneEthylbenzene is a pollutant from petroleum refineries and industrial chemical factories; it is also used to make plastics, and may be present as an impurity in some insecticides.0.27 ppb
29 ppb
No
300 ppb
No
700 ppb
DiethylphthalateDiethylphthalate is an industrial solvent used in many consumer products, particularly those containing fragrances; it may be present in perfume, cologne, deodorant, soap, shampoo, hand lotion, and other personal care products.0.21 ppb
5.9 ppb
No
1700 ppb
Legal at any levelThis is the Federal Limit. State Limits may be lower.
Chromium (total)Chromium is a metal that pollutes drinking water due to discharge from steel and pulp mills and erosion of natural deposits.0.22 ppb
3.73 ppb
No
100 ppb
No
100 ppb
ChloromethaneChloromethane is a naturally occuring chemical that forms during combustion of plant material; it may be released from the manufacture of silicone, rubber and pesticides, and also forms as a byproduct of water disinfection.0.04 ppb
1.6 ppb
No
30 ppb
Legal at any levelThis is the Federal Limit. State Limits may be lower.
TolueneToluene is a pollutant from petroleum refineries and a chemical used in plastics manufacturing as well as the pharmaceutical, paint and furniture industries.0.33 ppb
39 ppb
No
150 ppb
No
1000 ppb
TetrahydrofuranTetrahydrofuran is an intermediate in chemical manufacturing to produce food storage and packaging materials, rubber, resins and plastics, and is a solvent for dyes and lacquers.0.73 ppb
55 ppb
NoLegal at any levelThis is the Federal Limit. State Limits may be lower.
AluminumAluminum is a metal released from metal refineries and mining operations.5.83 ppb
121 ppb
No
200 ppb
No
200 ppb
Monobromoacetic acidMonobromoacetic acid is a disinfection byproduct regulated by EPA as one of five haloacetic acids that are formed when chlorine, chloramines or other disinfectants react with organic and inorganic matter in water.0.19 ppb
1.28 ppb
NoNo
60 ppb
Methyl isobutyl ketoneMethyl isobutyl ketone (4-Methyl-2-pentanone) is an industrial chemical used in the production of paints, pesticides, textiles, inks and rubber.0.99 ppb
125 ppb
NoLegal at any levelThis is the Federal Limit. State Limits may be lower.
1,1-DichloroethyleneIndustrial chemical pollutant from manufacture of adhesives, synthetic fibers, refrigerants and plastic wraps.<0.01 ppb
0.5 ppb
No
7 ppb
No
7 ppb
1,1,1-Trichloroethane1,1,1-Trichloroethane is an industrial cleaning solvent that contaminates drinking water sources due to releases from metal degreasing sites and chemicals factories.<0.01 ppb
0.52 ppb
No
200 ppb
No
200 ppb
Beryllium (total)Beryllium is a metal associated with metal refineries and combustion of fossil fuels, especially coal burning; it is released into the environment from electrical, aerospace and defense industries.0.05 ppb
0.9 ppb
No
1 ppb
No
4 ppb
Xylenes (total)Xylenes are a group of chemicals produced from petroleum and released as pollutants from chemical, plastics and synthetic fiber industries as well as printing, painting, and laboratory uses.1.5 ppb
108 ppb
No
1800 ppb
No
10000 ppb
Methyl ethyl ketoneMethyl ethyl ketone is a synthetic chemical used as a solvent for paints, coatings, adhesives, printing inks, and other industrial and consumer goods; it occurs naturally in some vegetation and forms during ozonation of drinking water. 1.33 ppb
145 ppb
No
4000 ppb
Legal at any levelThis is the Federal Limit. State Limits may be lower.
HexachlorocyclopentadieneHexachlorocyclopentadiene is an industrial pollutant discharged from chemical factories.<0.01 ppb
0.18 ppb
No
40 ppb
No
50 ppb
NaphthaleneNaphthalene is an intermediate in chemical manufacturing, a moth repellent, a fungicide, and a pollutant from the incomplete combustion of fossil fuels.<0.01 ppb
0.14 ppb
No
100 ppb
Legal at any levelThis is the Federal Limit. State Limits may be lower.
1,3-Dichloropropane1,3-Dichloropropane is an industrial solvent and an intermediate for manufacture of other chemicals.<0.01 ppb
0.09 ppb
NoLegal at any levelThis is the Federal Limit. State Limits may be lower.
2,2-Dichloropropane2,2-Dichloropropane is an intermediate used in chemical manufacturing.<0.01 ppb
0.25 ppb
NoLegal at any levelThis is the Federal Limit. State Limits may be lower.
IodomethaneIodomethane is an industrial chemical with a wide range of applications, including manufacture of pharmaceuticals and fire extinguisher products; it is also used as a pesticide/herbicide and occurs naturally in seafood.0.05 ppb
6.6 ppb
NoLegal at any levelThis is the Federal Limit. State Limits may be lower.
1,1-Dichloroethane1,1-Dichloroethane is used in industrial chemical synthesis, as a solvent for plastics, paint, varnish, and finish removers and as an insecticide/fumigant.<0.01 ppb
0.38 ppb
No
3 ppb
Legal at any levelThis is the Federal Limit. State Limits may be lower.
1,1,2-Trichloroethane1,1,2-Trichloroethane is used in production of synthetic fibers, plastic wraps and adhesives; it is released as a pollutant from various chemical manufacturing factories.<0.01 ppb
0.28 ppb
No
0.3 ppb
No
5 ppb
1,1,1,2-Tetrachloroethane1,1,1,2-Tetrachloroethane is a synthetic chemical used in metal degreasing and as an intermediate in industrial chemical production.<0.01 ppb
0.63 ppb
No
1 ppb
Legal at any levelThis is the Federal Limit. State Limits may be lower.
Monochlorobenzene (Chlorobenzene)Monochlorobenzene is used as a solvent in pesticides, a degreasing agent and a chemical intermediate; it is released as a pollutant from various industrial chemical factories and has been found in surface and groundwater.<0.01 ppb
0.22 ppb
No
100 ppb
No
100 ppb
cis-1,3-Dichloropropenecis-1,3-Dichloropene is used in chemical synthesis, and in agriculture as a soil fumigant and nematocide.<0.01 ppb
0.65 ppb
NoLegal at any levelThis is the Federal Limit. State Limits may be lower.
Endosulfan IEndosulfan I (alpha) is an isomer of the insecticide endosulfan used on food crops such as grains, tea, fruits, vegetables, on nonfood crops, and as a wood preservative; it is bioaccumulative, persistent, and a potential endocrine disruptor.<0.01 ppb
0.02 ppb
No
62 ppb
Legal at any levelThis is the Federal Limit. State Limits may be lower.
LindaneLindane is an insecticide still used in shampoo to control lice and scabies; it is a form of hexachlorocyclohexane, a highly toxic pesticide phased out of agricultural use in the U.S.<0.01 ppb
0.01 ppb
No
0.03 ppb
No
0.2 ppb
delta-BHCdelta-BHC (benzene hexachloride) is an insecticide formerly used on fruit, vegetable and forest crops.<0.01 ppb
0.02 ppb
NoLegal at any levelThis is the Federal Limit. State Limits may be lower.
MethoxychlorMethoxychlor is an endocrine-disrupting insecticide similar to DDT; banned in the U.S. in 2002, it was historically used on farm animals and in animal feed, lumber, gardens and certain crops. <0.01 ppb
0.02 ppb
No
30 ppb
No
40 ppb
EndrinEndrin is a banned organochlorine insecticide that is persistent, bioaccumulative, acutely toxic to vertebrates and associated with massive deaths of fish, birds and other wildlife.<0.01 ppb
0.02 ppb
No
0.06 ppb
No
2 ppb
Endosulfan IIEndosulfan II (beta) is an isomer of the insecticide endosulfan used on food crops such as grains, tea, fruits, vegetables, on nonfood crops, and as a wood preservative; it is bioaccumulative, persistent, and a potential endocrine disruptor.<0.01 ppb
0.02 ppb
No
62 ppb
Legal at any levelThis is the Federal Limit. State Limits may be lower.
PropachlorPropachlor is a carcinogenic herbicide that had been historically used on corn and sorghum.<0.01 ppb
0.18 ppb
No
1 ppb
Legal at any levelThis is the Federal Limit. State Limits may be lower.
Endosulfan SulfateEndosulfan sulfate is an isomer of the insecticide endosulfan used on food crops such as grains, tea, fruits, vegetables, on nonfood crops, and as a wood preservative; it is bioaccumulative, persistent, and a potential endocrine disruptor.<0.01 ppb
0.02 ppb
No
62 ppb
Legal at any levelThis is the Federal Limit. State Limits may be lower.
Endrin AldehydeEndrin aldehyde is a breakdown product of the banned insecticide Endrin.<0.01 ppb
0.02 ppb
No
0.29 ppb
Legal at any levelThis is the Federal Limit. State Limits may be lower.
Benzo[g,h,i]peryleneBenzo[g,h,i]perylene is a polycyclic aromatic hydrocarbon (PAH) in crude oil and is released from combustion of fossil fuels and from industries including petroleum refining, coal tar distillation, wastewater treatment and waste incineration.<0.01 ppb
0.47 ppb
NoLegal at any levelThis is the Federal Limit. State Limits may be lower.
Butyl BenzylphthalateButyl benzylphthalate is an industrial solvent and additive used in adhesives, vinyl flooring, sealants, car-care products and some personal care products.0.01 ppb
0.87 ppb
No
100 ppb
Legal at any levelThis is the Federal Limit. State Limits may be lower.
Di-n-octylphthalateDi-n-octylphthalate is a synthetic chemical used to keep plastics soft or more flexible; it is found in diverse industrial and consumer products that range from cosmetics to pesticides.0.01 ppb
0.63 ppb
NoLegal at any levelThis is the Federal Limit. State Limits may be lower.
MetolachlorMetolachlor is an herbicide applied on corn, soybeans, peanuts, cotton and pod crops.<0.01 ppb
0.33 ppb
No
700 ppb
Legal at any levelThis is the Federal Limit. State Limits may be lower.
Di(2-Ethylhexyl) adipateDi(2-Ethylhexyl) adipate is a placticizer and solvent released as a pollutant from industrial chemical factories, sewage treatment facilities and iron foundries.<0.01 ppb
0.57 ppb
No
30 ppb
No
400 ppb
SimazineSimazine is a widely used herbicide that has been associated with endocrine disruption and cancer in experimental studies.<0.01 ppb
0.1 ppb
No
4 ppb
No
4 ppb
Di-n-butylphthalateDi-n-butylphthalate is an industrial solvent or additive used in many consumer products such as nail polish, cosmetics, some printing inks, pharmaceutical coatings, cleaning products and insecticides.0.02 ppb
0.77 ppb
No
700 ppb
Legal at any levelThis is the Federal Limit. State Limits may be lower.
PyrenePyrene is a polycyclic aromatic hydrocarbon (PAH) released as a pollutant from the incomplete combustion of fossil fuels.<0.01 ppb
0.07 ppb
No
200 ppb
Legal at any levelThis is the Federal Limit. State Limits may be lower.
PhenanthrenePhenanthrene is a pollutant from the incomplete combustion of fossil fuels, and is also used in the manufacture of dyes, explosives and pharmaceuticals.<0.01 ppb
0.07 ppb
NoLegal at any levelThis is the Federal Limit. State Limits may be lower.
AcenaphthyleneAcenaphthylene is a component of crude oil and coal tar, and a pollutant from petroleum refining, coal tar distillation, municipal wastewater treatment facilities and municipal waste incinerators.<0.01 ppb
0.1 ppb
NoLegal at any levelThis is the Federal Limit. State Limits may be lower.
AcenaphtheneAcenaphthene is a polycyclic aromatic hydrocarbon (PAH) released from fossil fuel combustion and petroleum refining; it is also used as an intermediate in the manufacture of dyes, plastics and pharmaceuticals, and as an insecticide and fungicide.<0.01 ppb
0.17 ppb
No
400 ppb
Legal at any levelThis is the Federal Limit. State Limits may be lower.
FluoreneFluorene is a polycyclic aromatic hydrocarbon (PAH) released from the incomplete combustion of fuels including oil, gasoline, coal and wood, as well as waste materials; it is an intermediate in production of dyes and other chemicals.<0.01 ppb
0.1 ppb
No
300 ppb
Legal at any levelThis is the Federal Limit. State Limits may be lower.
MetribuzinMetribuzin is an herbicide used primarily on soybeans, potatoes and alfalfa.<0.01 ppb
0.33 ppb
No
70 ppb
Legal at any levelThis is the Federal Limit. State Limits may be lower.
FluorantheneFluoranthene is a polycyclic aromatic hydrocarbon (PAH) released from the incomplete combustion of fossil fuels; it is a constituent of coal tar and asphalt coatings on pipes and storage tanks in tap water distribution systems.<0.01 ppb
0.17 ppb
No
130 ppb
Legal at any levelThis is the Federal Limit. State Limits may be lower.
DimethylphthalateDimethylphthalate is a manufactured chemicals used in solid rocket propellants, plastics, molding powders, pesticides and insect repellants.<0.01 ppb
0.1 ppb
No
270000 ppb
Legal at any levelThis is the Federal Limit. State Limits may be lower.
AnthraceneAnthracene is a polycyclic aromatic hydrocarbon (PAH) released from fossil fuel combustion, wastewater treatment, waste incineration; it is used to make dyes and plastics and leaches from water distribution system tanks and pipes lined with coal tar.<0.01 ppb
0.1 ppb
No
2000 ppb
Legal at any levelThis is the Federal Limit. State Limits may be lower.
Silver (total)Silver is an element from natural deposits and mining wastes; it is also associated with the development of photographic and x-ray film and the use of silver in antibacterial consumer products.0.02 ppb
1 ppb
No
100 ppb
No
100 ppb
DicambaDicamba is an herbicide applied in agriculture, rangeland, pasture and industry; it is used for corn, wheat and other crops.<0.01 ppb
0.02 ppb
No
3000 ppb
Legal at any levelThis is the Federal Limit. State Limits may be lower.
DalaponDalapon is an herbicide used on roads, railway tracks and other rights of way.<0.01 ppb
0.02 ppb
No
200 ppb
No
200 ppb
Mercury (total inorganic)Mercury is a metal from refinery and factory pollution, coal burning, landfill and agricultural runoff and erosion of natural deposits.<0.01 ppb
0.04 ppb
No
1.2 ppb
No
2 ppb
CyanideCyanide is a chemical used in mining and steel/metal, plastic, and pesticide manufacturing; it is applied to roads as road salts, and small quantities occur naturally in some plants.0.04 ppb
2.5 ppb
No
80 ppb
No
200 ppb
Antimony (total)Antimony is a metal that enters water from petroleum refinery pollution, fire retardants, ceramics, electronics and solder.0.07 ppb
2 ppb
No
5.6 ppb
No
6 ppb
PicloramPicloram is an herbicide that may contaminate drinking water sources due to runoff from applications to pasture, rangeland and rights-of-way.<0.01 ppb
0.06 ppb
No
500 ppb
No
500 ppb
2,4,5-TP (Silvex)2,4,5-TP (Silvex) is an herbicide banned in 1985; it was formerly used in homes and on recreation areas, industrial sites, lumber yards, vacant lots, lawns and turf, and crops including rice.<0.01 ppb
0.03 ppb
No
10 ppb
No
50 ppb
2,4-D2,4-D is a chlorophenol herbicide used on row crops, lawns and golf courses.<0.01 ppb
0.04 ppb
No
20 ppb
No
70 ppb
DinosebDinoseb is an herbicide historically used on soybeans and vegetables; it is associated with birth defects and reproductive difficulties and has been banned in the U.S. since 1986.<0.01 ppb
0.02 ppb
No
7 ppb
No
7 ppb
para-para DDEpara-para DDE is a metabolite of DDT, a toxic and persistent insecticide banned in the U.S. and most other countries.<0.01 ppb
0.02 ppb
No
0.1 ppb
Legal at any levelThis is the Federal Limit. State Limits may be lower.
Oxamyl (Vydate)Oxamyl is a neurotoxic insecticide used on cotton, fruit and vegetable crops (apples, potatoes and tomatoes).<0.01 ppb
0.04 ppb
No
10 ppb
No
200 ppb
3-Hydroxycarbofuran3-Hydroxycarbofuran is a metabolite of the insecticide carbofuran, a fumigant used on rice and alfalfa.<0.01 ppb
0.02 ppb
NoLegal at any levelThis is the Federal Limit. State Limits may be lower.
CarbofuranCarbofuran is a highly toxic insecticide and soil fumigant that had been used on corn, rice and alfalfa; it poses severe risks to children (via diet), agricultural workers and the environment.<0.01 ppb
0.04 ppb
No
1.7 ppb
No
40 ppb
Aldicarb sulfoneAldicarb sulfone is a groundwater contaminant and a neurotoxic metabolite of the insecticide aldicarb used on agricultural crops.<0.01 ppb
0.03 ppb
No
7 ppb
Legal at any levelThis is the Federal Limit. State Limits may be lower.
CarbarylCarbaryl is an agricultural pesticide used on citrus, vegetables and nuts; it is also found in home, garden, lawn and industrial applications.<0.01 ppb
0.02 ppb
No
40 ppb
Legal at any levelThis is the Federal Limit. State Limits may be lower.
MethomylMethomyl is a neurotoxic insecticide used on field, fruit and vegetable crops; EPA classifies methomyl as "Restricted Use Pesticide" because of its high acute oral toxicity to humans.<0.01 ppb
0.03 ppb
No
200 ppb
Legal at any levelThis is the Federal Limit. State Limits may be lower.
Aldicarb sulfoxideAldicarb sulfoxide is a groundwater contaminant and neurotoxic metabolite of the insecticide aldicarb used on agricultural crops.<0.01 ppb
0.03 ppb
No
7 ppb
Legal at any levelThis is the Federal Limit. State Limits may be lower.
AldicarbAldicarb is a groundwater contaminant and a neurotoxic insecticide used on agricultural crops.<0.01 ppb
0.02 ppb
No
7 ppb
Legal at any levelThis is the Federal Limit. State Limits may be lower.
Gross beta particle activity (pCi/L)Beta particles are a form of radiation frequently associated with nuclear testing and radioactive mineral deposits.3.76 pCi/L
4.19 pCi/L
NoNo
15 pCi/L
NOTE: Each dot in the above graph represents one month.
* Water utilities are noted as exceeding the legal limit if any test is above the maximum contaminant level (MCL). Most MCLs are based on annual averages so exceeding the MCL for one test does not necessarily indicate that the system is out of compliance.

Contaminants Not Detected - 65 chemicals

1,1-Dichloropropene, 1,2,3-Trichlorobenzene, 1,2,3-Trichloropropane, 1,2,4-Trichlorobenzene, 1,2,4-Trimethylbenzene, 1,2-Dibromoethylene, 1,2-Dichloropropane, 1,3,5-Trimethylbenzene, 2,4,5-t, 2,4,5-Trichlorophenol, 2,4-db, 2,4-Dinitrotoluene, 2,6-Dinitrotoluene, 2-Chloroethylvinyl ether, 2-Hexanone, 2-Methyl naphthalene, 4,4-dde, Acetochlor, Allyl Chloride (3-chloro-1-propene), Baygon (Propoxur), Bentazon (Basagran), Benzene, Benzo[b]fluoranthene & Benzo[k]fluoranthene, Bromobenzene, Bromochloroacetic acid, Bromochloromethane, Bromomethane, Butachlor, Carbon tetrachloride, Chloramben, Chloroethane, Dacthal, Dibenzofuran, Dibromomethane, Dichlorodifluoromethane, Dichlorprop, EPTC (Eptam), Ethyl Methacrylate, Fluorobenzene, Hexachlorobutadiene, Isopropylbenzene, m-Dichlorobenzene, Methiocarb, Methyl methacrylate, Molinate (Ordram), n-Butylbenzene, n-Propylbenzene, o-Chlorotoluene, o-Dichlorobenzene, p-Chlorotoluene, p-Dichlorobenzene, p-Isopropyltoluene, sec-Butylbenzene, Styrene, Terbacil, tert-Butylbenzene, Thallium (total), Total polychlorinated biphenyls (PCBs), trans-1,2-Dichloroethylene, trans-1,3-Dichloropropene, trans-1,4-Dichloro-2-butene, Trifluralin, Vanadium, Vinyl acetate, Vinyl chloride

Pollution Summary

138Total Contaminants Detected (2004 - 2007)

Aluminum, Barium (total), Chromium (total), Cyanide, Mercury (total inorganic), Nitrate & nitrite, Nitrate, Selenium (total), Silver (total), Antimony (total), Beryllium (total), Endrin, Lindane, Methoxychlor, Carbaryl, Methomyl, Dalapon, Di(2-Ethylhexyl) adipate, Oxamyl (Vydate), Simazine, Picloram, Dinoseb, Hexachlorocyclopentadiene, Aldicarb sulfoxide, Aldicarb sulfone, Metolachlor, Carbofuran, Aldicarb, 3-Hydroxycarbofuran, Endosulfan I, para-para DDE, Endosulfan II, Endosulfan Sulfate, Propachlor, 2,4-D, 2,4,5-TP (Silvex), Chloromethane, Trichlorofluoromethane, Di-n-octylphthalate, cis-1,3-Dichloropropene, Acetone, Methyl ethyl ketone, Naphthalene, Methyl isobutyl ketone, MTBE, Acenaphthylene, Acenaphthene, Tetrahydrofuran, Fluorene, Phenanthrene, Anthracene, Dimethylphthalate, Diethylphthalate, Fluoranthene, Pyrene, Di-n-butylphthalate, Butyl Benzylphthalate, Benzo[g,h,i]perylene, delta-BHC, Endrin Aldehyde, cis-1,2-Dichloroethylene, 1,3-Dichloropropane, 2,2-Dichloropropane, Dicamba, Monochloroacetic acid, Trichloroacetic acid, Monobromoacetic acid, Dibromoacetic acid, Iodomethane, Metribuzin, Xylenes (total), 1,1-Dichloroethylene, 1,1-Dichloroethane, 1,1,1-Trichloroethane, 1,1,2-Trichloroethane, 1,1,1,2-Tetrachloroethane, Monochlorobenzene (Chlorobenzene), Toluene, Ethylbenzene, o-Xylene, m- & p- Xylene, Alpha Chlordane, Gamma Chlordane, Gross beta particle activity (pCi/L), Arsenic (total), Cadmium (total), Copper, Lead (total), Manganese, Nitrite, Toxaphene, Di(2-ethylhexyl) phthalate, Atrazine, Alachlor (Lasso), Heptachlor, Heptachlor epoxide, Dieldrin, para-para DDD, p,p'-DDT, bis(2-chloroethyl) ether, Acrylonitrile, Hexachlorobenzene (HCB), Chrysene, Benzo[a]anthracene, Benzo[b]fluoranthene, Benzo[k]fluoranthene, Benzo[a]pyrene, Indeno[1,2,3-cd]pyrene, Dibenz[a,h]anthracene, Pentachlorophenol, alpha-Lindane, beta-Lindane, Aldrin, Aroclor 1016, Aroclor 1221, Aroclor 1232, Aroclor 1242, Aroclor 1248, Aroclor 1254, Aroclor 1260, Dichloroacetic acid, Total haloacetic acids (HAAs), 1,2-Dibromo-3-chloropropane (DBCP), Chloroform, Bromoform, Bromodichloromethane, Dibromochloromethane, Ethylene dibromide (EDB), Total trihalomethanes (TTHMs), Chlordane, Dichloromethane (methylene chloride), 1,2-Dichloroethane, Trichloroethylene, Tetrachloroethylene, 1,1,2,2-Tetrachloroethane, Alpha particle activity (excl radon and uranium), Gross beta particle activity (mrem/yr), Alpha particle activity

53Agricultural Pollutants
(pesticides, fertilizer, factory farms)

Cyanide, Nitrate & nitrite, Nitrate, Selenium (total), Endrin, Lindane, Methoxychlor, Carbaryl, Methomyl, Dalapon, Oxamyl (Vydate), Simazine, Picloram, Dinoseb, Aldicarb sulfoxide, Aldicarb sulfone, Metolachlor, Carbofuran, Aldicarb, 3-Hydroxycarbofuran, Endosulfan I, para-para DDE, Endosulfan II, Endosulfan Sulfate, Propachlor, 2,4-D, 2,4,5-TP (Silvex), Di-n-octylphthalate, delta-BHC, Endrin Aldehyde, Dicamba, Iodomethane, Metribuzin, Monochlorobenzene (Chlorobenzene), Ethylbenzene, Alpha Chlordane, Gamma Chlordane, Arsenic (total), Nitrite, Toxaphene, Atrazine, Alachlor (Lasso), Heptachlor, Heptachlor epoxide, Dieldrin, para-para DDD, p,p'-DDT, alpha-Lindane, beta-Lindane, Aldrin, 1,2-Dibromo-3-chloropropane (DBCP), Ethylene dibromide (EDB), Chlordane

49Sprawl and Urban Pollutants
(road runoff, lawn pesticides, human waste)

Nitrate, Copper, Nitrate & nitrite, Lead (total), Arsenic (total), Tetrachloroethylene, MTBE, Nitrite, Xylenes (total), Dalapon, Cadmium (total), Antimony (total), Mercury (total inorganic), m- & p- Xylene, Dichloromethane (methylene chloride), Cyanide, o-Xylene, Acetone, Silver (total), Trichlorofluoromethane, Methyl ethyl ketone, Di(2-Ethylhexyl) adipate, Di-n-butylphthalate, 2,4-D, Naphthalene, Chlordane, Benzo[a]pyrene, Lindane, Diethylphthalate, 2,4,5-TP (Silvex), Phenanthrene, Pyrene, Carbaryl, Butyl Benzylphthalate, Fluoranthene, Fluorene, Indeno[1,2,3-cd]pyrene, Chrysene, Benzo[b]fluoranthene, Benzo[g,h,i]perylene, Anthracene, Benzo[k]fluoranthene, Benzo[a]anthracene, Acenaphthene, Dimethylphthalate, Dibenz[a,h]anthracene, Di-n-octylphthalate, alpha-Lindane, beta-Lindane

84Industrial Pollutants

Aluminum, Barium (total), Chromium (total), Cyanide, Mercury (total inorganic), Nitrate & nitrite, Nitrate, Selenium (total), Silver (total), Antimony (total), Beryllium (total), Lindane, Di(2-Ethylhexyl) adipate, Hexachlorocyclopentadiene, Endosulfan I, Endosulfan II, Endosulfan Sulfate, Chloromethane, Trichlorofluoromethane, Di-n-octylphthalate, cis-1,3-Dichloropropene, Acetone, Methyl ethyl ketone, Naphthalene, Methyl isobutyl ketone, MTBE, Acenaphthylene, Acenaphthene, Tetrahydrofuran, Fluorene, Phenanthrene, Anthracene, Dimethylphthalate, Diethylphthalate, Fluoranthene, Pyrene, Di-n-butylphthalate, Butyl Benzylphthalate, cis-1,2-Dichloroethylene, 1,3-Dichloropropane, 2,2-Dichloropropane, Iodomethane, Xylenes (total), 1,1-Dichloroethylene, 1,1-Dichloroethane, 1,1,1-Trichloroethane, 1,1,2-Trichloroethane, 1,1,1,2-Tetrachloroethane, Monochlorobenzene (Chlorobenzene), Toluene, Ethylbenzene, o-Xylene, m- & p- Xylene, Gross beta particle activity (pCi/L), Arsenic (total), Cadmium (total), Lead (total), Manganese, Nitrite, Di(2-ethylhexyl) phthalate, bis(2-chloroethyl) ether, Acrylonitrile, Hexachlorobenzene (HCB), Chrysene, Benzo[b]fluoranthene, Indeno[1,2,3-cd]pyrene, Dibenz[a,h]anthracene, Pentachlorophenol, Aroclor 1016, Aroclor 1221, Aroclor 1232, Aroclor 1242, Aroclor 1248, Aroclor 1254, Aroclor 1260, Ethylene dibromide (EDB), Dichloromethane (methylene chloride), 1,2-Dichloroethane, Trichloroethylene, Tetrachloroethylene, 1,1,2,2-Tetrachloroethane, Alpha particle activity (excl radon and uranium), Gross beta particle activity (mrem/yr), Alpha particle activity

19Water Treatment and Distribution Byproducts
(pipes and fixtures, treatment chemicals and byproducts)

Total trihalomethanes (TTHMs), Total haloacetic acids (HAAs), Chloroform, Bromodichloromethane, Dibromochloromethane, Dichloroacetic acid, Trichloroacetic acid, Bromoform, Dibromoacetic acid, Monochloroacetic acid, Monobromoacetic acid, Di(2-ethylhexyl) phthalate, Cadmium (total), Chloromethane, Benzo[a]pyrene, Fluoranthene, Benzo[g,h,i]perylene, Benzo[k]fluoranthene, Benzo[a]anthracene

19Naturally Occurring
(naturally present but increased for lands denuded by sprawl, agriculture, or industrial development)

Nitrate, Copper, Nitrate & nitrite, Barium (total), Lead (total), Arsenic (total), Manganese, Alpha particle activity, Alpha particle activity (excl radon and uranium), Gross beta particle activity (pCi/L), Chromium (total), Aluminum, Selenium (total), Nitrite, Mercury (total inorganic), Chloromethane, Cyanide, Silver (total), Gross beta particle activity (mrem/yr)

61Unregulated Contaminants
EPA has not established a maximum legal limit in tapwater for these contaminants

Carbaryl, Methomyl, Aldicarb sulfoxide, Aldicarb sulfone, Metolachlor, Aldicarb, 3-Hydroxycarbofuran, Endosulfan I, para-para DDE, Endosulfan II, Endosulfan Sulfate, Propachlor, Chloromethane, Trichlorofluoromethane, Di-n-octylphthalate, cis-1,3-Dichloropropene, Acetone, Methyl ethyl ketone, Naphthalene, Methyl isobutyl ketone, MTBE, Acenaphthylene, Acenaphthene, Tetrahydrofuran, Fluorene, Phenanthrene, Anthracene, Dimethylphthalate, Diethylphthalate, Fluoranthene, Pyrene, Di-n-butylphthalate, Butyl Benzylphthalate, Benzo[g,h,i]perylene, delta-BHC, Endrin Aldehyde, 1,3-Dichloropropane, 2,2-Dichloropropane, Dicamba, Iodomethane, Metribuzin, 1,1-Dichloroethane, 1,1,1,2-Tetrachloroethane, Alpha Chlordane, Gamma Chlordane, Lead (total), Dieldrin, para-para DDD, p,p'-DDT, bis(2-chloroethyl) ether, Acrylonitrile, Chrysene, Benzo[a]anthracene, Benzo[b]fluoranthene, Benzo[k]fluoranthene, Indeno[1,2,3-cd]pyrene, Dibenz[a,h]anthracene, alpha-Lindane, beta-Lindane, Aldrin, 1,1,2,2-Tetrachloroethane

EPA Violation Summary

Violation CategoryNumber of Violations

(click see violations)
1
ViolationDate of Violation
MCL and Treatment
(click see violations)1Monitoring
(click see violations)1

Information on violations is drawn directly from EPA's national violations database in the Agency's Safe Drinking Water Information System. Analyses by others have raised questions about the quality of the information in EPA's database. For the purposes of this investigation, EWG is not showing below or including in our analyses, those violations for individual water suppliers that occurred on days for which the total number of violations assigned by EPA to that water supplier was greater than 20. This criteria was based on common characteristics of incorrect violations data as identified by water utilities, from a review of EPA's violations data by several hundred utilities prior to the release of EWG's investigation.