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EWG's Tap Water Database — 2019 UPDATE

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Lemont

EWG's drinking water quality report shows results of tests conducted by the water utility and provided to the Environmental Working Group by the Illinois Environmental Protection Agency, as well as information from the U.S. EPA Enforcement and Compliance History database (ECHO). For the latest quarter assessed by the U.S. EPA (January 2019 - March 2019), tap water provided by this water utility was in compliance with federal health-based drinking water standards.

Utility Details

  • Lemont, Illinois
  • Serves: 13,098
  • Data available: 2012—2017
  • Source: Groundwater

Contaminants Detected

2

EXCEED
EWG HEALTH
GUIDELINES

6 Total Contaminants

  • Legal does not necessarily equal safe. Getting a passing grade from the federal government does not mean the water meets the latest health guidelines.
  • Legal limits for contaminants in tap water have not been updated in almost 20 years.
  • The best way to ensure clean tap water is to keep pollution out of source water in the first place.

Legal ≠ Safe

EWG Health Guidelines fill the gap in outdated government standards.

The federal government’s legal limits are not health-protective. The EPA has not set a new tap water standard in almost 20 years, and some standards are more than 40 years old.

Contaminants Detected

Arsenic

Potential Effect: cancer275x EWG'S HEALTH GUIDELINE
THIS UTILITY1.10 ppb
EWG HEALTH GUIDELINE0.004 ppb
LEGAL LIMIT10 ppb
DETAILS
X

Arsenic is a potent carcinogen and common contaminant in drinking water. Arsenic causes thousands of cases of cancer each year in the U.S. Click here to read more about arsenic.

Arsenic was found at 275 times above EWG's Health Guideline.

EWG Health Guideline

0.004 ppb or less

This Utility

1.1 ppb

Legal Limit

10 ppb

National Average

0.682 ppb

State Average

0.382 ppb
The state and national averages were calculated using the averages of the contaminant measurements for each utility in 2015-2017.
ppb = parts per billion

Health Risks

The EWG Health Guideline of 0.004 ppb for arsenic was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against cancer.

Pollution Sources

agriculture icon

Agriculture

industry icon

Industry

naturally occuring icon

Naturally Occurring

Filtering Options

reverse osmosis icon

Reverse Osmosis

ion exchange icon

Ion Exchange

Radium, combined (-226 & -228)

Potential Effect: cancer39x EWG'S HEALTH GUIDELINE
THIS UTILITY1.96 pCi/L
EWG HEALTH GUIDELINE0.05 pCi/L
LEGAL LIMIT5 pCi/L
DETAILS
X

Radium, combined (-226 & -228)

more about
this contaminant

Radium is a radioactive element that causes bone cancer and other cancers. It can occur naturally in groundwater, and oil and gas extraction activities such as hydraulic fracturing can elevate concentrations.

Radium, combined (-226 & -228) was found at 39 times above EWG's Health Guideline.

EWG Health Guideline

0.05 pCi/L or less

This Utility

1.96 pCi/L

Legal Limit

5 pCi/L

National Average

0.47 pCi/L

State Average

0.96 pCi/L
The state and national averages were calculated using the averages of the contaminant measurements for each utility in 2012-2017.
pCi/L = picocuries per liter

Health Risks

EWG applied the health guideline of 0.05 pCi/L, defined by the California Office of Environmental Health Hazard Assessment as a public health goal for radium-226, to radium-226 and radium-228 combined. This health guideline protects against cancer.

Pollution Sources

industry icon

Industry

naturally occuring icon

Naturally Occurring

Filtering Options

reverse osmosis icon

Reverse Osmosis

ion exchange icon

Ion Exchange

Includes chemicals detected in 2015-2017 for which annual utility averages exceeded an EWG-selected health guideline established by a federal or state public health authority; radiological contaminants detected between 2012 and 2017.


Other Contaminants Tested


Contaminants detected between 2012 and 2014 and were not part of EPA's UCMR-3 testing program or radiologicals:

Chromium (total), Xylenes (total), Toluene, Ethylbenzene

 

Chemicals tested for but not detected from 2012 to 2017:

1,1,1-Trichloroethane, 1,1,2-Trichloroethane, 1,1-Dichloroethane, 1,1-Dichloroethylene, 1,2,3-Trichloropropane, 1,2,4-Trichlorobenzene, 1,2-Dibromo-3-chloropropane (DBCP), 1,2-Dichloroethane, 1,2-Dichloropropane, 1,3-Butadiene, 1,4-Dioxane, 2,4,5-TP (Silvex), 2,4-D, 3-Hydroxycarbofuran, Alachlor (Lasso), Aldicarb, Aldicarb sulfone, Aldicarb sulfoxide, Aldrin, Antimony, Atrazine, Benzene, Benzo[a]pyrene, Beryllium, Bromochloromethane, Bromodichloromethane, Bromoform, Bromomethane, Cadmium, Carbaryl, Carbofuran, Carbon tetrachloride, Chlorate, Chlordane, Chlorodifluoromethane, Chloroform, Chloromethane, Chromium (hexavalent), cis-1,2-Dichloroethylene, Cobalt, Cyanide, Dalapon, Ddt, Di(2-ethylhexyl) adipate, Di(2-ethylhexyl) phthalate, Dibromoacetic acid, Dibromochloromethane, Dicamba, Dichloroacetic acid, Dichloromethane (methylene chloride), Dieldrin, Dinoseb, Diquat, Endothall, Endrin, Ethylene dibromide, Haloacetic acids (HAA5), Heptachlor, Heptachlor epoxide, Hexachlorobenzene (HCB), Hexachlorocyclopentadiene, Lindane, Mercury (inorganic), Methomyl, Methoxychlor, Molybdenum, Monobromoacetic acid, Monochloroacetic acid, Monochlorobenzene (chlorobenzene), MTBE, Nitrate, Nitrate & nitrite, Nitrite, o-Dichlorobenzene, Oxamyl (Vydate), p-Dichlorobenzene, Pentachlorophenol, Perfluorobutane sulfonate (PFBS), Perfluoroheptanoic acid (PFHPA), Perfluorohexane sulfonate (PFHXS), Perfluorononanoic acid (PFNA), Perfluorooctane sulfonate (PFOS), Perfluorooctanoic acid (PFOA), Picloram, Polychlorinated biphenyls (PCBs), Propachlor, Selenium, Simazine, Styrene, Tetrachloroethylene (perchloroethylene), Thallium, Total trihalomethanes (TTHMs), Toxaphene, trans-1,2-Dichloroethylene, Trichloroacetic acid, Trichloroethylene, Vanadium, Vinyl chloride

Lemont compliance with legally mandated federal standards:

  • From April 2016 to March 2019, Lemont complied with health-based drinking water standards.

Information in this section on Lemont comes from the U.S. EPA Enforcement and Compliance History Online database (ECHO).

LEARN MORE ABOUT THIS UTILITY

Water Filters That Can Reduce Contaminant Levels

ContaminantActivated Carbonactivated carbonReverse Osmosisreverse osmosisIon Exchangeion exchange
CONTAMINANTS ABOVE
HEALTH GUIDELINES
Arsenic
Radium, combined (-226 & -228)
OTHER CONTAMINANTS
DETECTED
Barium
Fluoride
Manganese
Strontium

Take Action

Contact Your Local Official

One of the best ways to push for cleaner water is to hold accountable the elected officials who have a say in water quality – from city hall and the state legislature to Congress all the way to the Oval Office – by asking questions and demanding answers.

LEARN MORE

Filter Out Contaminants

Check out our recommendations for filters to protect your water against the detected contaminants.

EWG’S WATER FILTER GUIDE