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EWG's Tap Water Database — 2019 UPDATE

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City of Blythe

EWG's drinking water quality report shows results of tests conducted by the water utility and provided to the Environmental Working Group by the California State Water Resources Control Board, 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

  • Blythe, California
  • Serves: 12,155
  • Data available: 2012—2017
  • Source: Groundwater

Contaminants Detected

8

EXCEED
EWG HEALTH
GUIDELINES

18 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EWG Health Guidelines fill the gap in outdated government standards.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

Bromodichloromethane

Potential Effect: cancer285x EWG'S HEALTH GUIDELINE
THIS UTILITY17.1 ppb
EWG HEALTH GUIDELINE0.06 ppb
NO LEGAL LIMIT
DETAILS
X

Bromodichloromethane

more about
this contaminant

Bromodichloromethane, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Bromodichloromethane and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Click here to read more about disinfection byproducts.

Bromodichloromethane was found at 285 times above EWG's Health Guideline.

EWG Health Guideline

0.06 ppb or less

This Utility

17.1 ppb

National Average

5.77 ppb

State Average

4.95 ppb
NO LEGAL LIMIT
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 0.06 ppb for bromodichloromethane was proposed in 2018 by the California Office of Environmental Health Hazard Assessment as a one-in-a-million lifetime risk of cancer. Values greater than one-in-a-million cancer risk level can result in increased cancer cases above one in a million people.

Pollution Sources

water treatment icon

Treatment Byproducts

Filtering Options

carbon filter icon

Activated Carbon

reverse osmosis icon

Reverse Osmosis

Bromoform

Potential Effect: cancer7.3x EWG'S HEALTH GUIDELINE
THIS UTILITY3.64 ppb
EWG HEALTH GUIDELINE0.5 ppb
NO LEGAL LIMIT
DETAILS
X

Bromoform, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Bromoform and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Click here to read more about disinfection byproducts.

Bromoform was found at 7.3 times above EWG's Health Guideline.

EWG Health Guideline

0.5 ppb or less

This Utility

3.64 ppb

National Average

1.42 ppb

State Average

3.23 ppb
NO LEGAL LIMIT
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 0.5 ppb for bromoform was proposed in 2018 by the California Office of Environmental Health Hazard Assessment as a one-in-a-million lifetime risk of cancer. Values greater than one-in-a-million cancer risk level can result in increased cancer cases above one in a million people.

Pollution Sources

water treatment icon

Treatment Byproducts

Filtering Options

carbon filter icon

Activated Carbon

reverse osmosis icon

Reverse Osmosis

Chlorate

Potential Effect: harm to the thyroid3.3x EWG'S HEALTH GUIDELINE
THIS UTILITY686.3 ppb
EWG HEALTH GUIDELINE210 ppb
NO LEGAL LIMIT
DETAILS
X

Chlorate forms in drinking water as a byproduct of disinfection. Chlorate impairs thyroid function, making chlorate exposure most harmful during pregnancy and childhood.

Chlorate was found at 3.3 times above EWG's Health Guideline.

EWG Health Guideline

210 ppb or less

This Utility

686.3 ppb

National Average

114.4 ppb

State Average

120.2 ppb
NO LEGAL LIMIT
The state and national averages were calculated using the averages of the contaminant measurements for each utility in 2012-2017.
ppb = parts per billion

Health Risks

The EWG Health Guideline of 210 ppb for chlorate was defined by the Environmental Protection Agency as a benchmark for testing under the Unregulated Contaminant Monitoring Rule program. This health guideline protects against hormone disruption.

Pollution Sources

agriculture icon

Agriculture

industry icon

Industry

water treatment icon

Treatment Byproducts

Chloroform

Potential Effect: cancer32x EWG'S HEALTH GUIDELINE
THIS UTILITY12.7 ppb
EWG HEALTH GUIDELINE0.4 ppb
NO LEGAL LIMIT
DETAILS
X

Chloroform, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Chloroform and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy.

Chloroform was found at 32 times above EWG's Health Guideline.

EWG Health Guideline

0.4 ppb or less

This Utility

12.7 ppb

National Average

15 ppb

State Average

7.73 ppb
NO LEGAL LIMIT
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 0.4 ppb for chloroform was proposed in 2018 by the California Office of Environmental Health Hazard Assessment as a one-in-a-million lifetime risk of cancer. Values greater than one-in-a-million cancer risk level can result in increased cancer cases above one in a million people.

Pollution Sources

water treatment icon

Treatment Byproducts

Filtering Options

carbon filter icon

Activated Carbon

reverse osmosis icon

Reverse Osmosis

Dibromochloromethane

Potential Effect: cancer156x EWG'S HEALTH GUIDELINE
THIS UTILITY15.6 ppb
EWG HEALTH GUIDELINE0.1 ppb
NO LEGAL LIMIT
DETAILS
X

Dibromochloromethane

more about
this contaminant

Dibromochloromethane, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Dibromochloromethane and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Click here to read more about disinfection byproducts.

Dibromochloromethane was found at 156 times above EWG's Health Guideline.

EWG Health Guideline

0.1 ppb or less

This Utility

15.6 ppb

National Average

3.42 ppb

State Average

5.61 ppb
NO LEGAL LIMIT
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 0.1 ppb for dibromochloromethane was proposed in 2018 by the California Office of Environmental Health Hazard Assessment as a one-in-a-million lifetime risk of cancer. Values greater than one-in-a-million cancer risk level can result in increased cancer cases above one in a million people.

Pollution Sources

water treatment icon

Treatment Byproducts

Filtering Options

carbon filter icon

Activated Carbon

reverse osmosis icon

Reverse Osmosis

Dichloroacetic acid

Potential Effect: cancer6.3x EWG'S HEALTH GUIDELINE
THIS UTILITY4.44 ppb
EWG HEALTH GUIDELINE0.7 ppb
NO LEGAL LIMIT
DETAILS
X

Dichloroacetic acid

more about
this contaminant

Dichloroacetic acid, one of the group of five haloacetic acids regulated by federal standards, is formed when chlorine or other disinfectants are used to treat drinking water. Haloacetic acids and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Click here to read more about disinfection byproducts.

Dichloroacetic acid was found at 6.3 times above EWG's Health Guideline.

EWG Health Guideline

0.7 ppb or less

This Utility

4.44 ppb

National Average

7.82 ppb

State Average

4.51 ppb
NO LEGAL LIMIT
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 0.7 ppb for dichloroacetic acid was defined by the Environmental Protection Agency as a one-in-a-million lifetime risk of cancer. Values greater than one-in-a-million cancer risk level can result in increased cancer cases above one in a million people.

Pollution Sources

water treatment icon

Treatment Byproducts

Filtering Options

carbon filter icon

Activated Carbon

reverse osmosis icon

Reverse Osmosis

Total trihalomethanes (TTHMs)

Potential Effect: cancer360x EWG'S HEALTH GUIDELINE
THIS UTILITY53.9 ppb
EWG HEALTH GUIDELINE0.15 ppb
LEGAL LIMIT80 ppb
DETAILS
X

Total trihalomethanes (TTHMs)

more about
this contaminant

Trihalomethanes are cancer-causing contaminants that form during water treatment with chlorine and other disinfectants. The total trihalomethanes group includes four chemicals: chloroform, bromodichloromethane, dibromochloromethane and bromoform.

Total trihalomethanes (TTHMs) was found at 360 times above EWG's Health Guideline.

EWG Health Guideline

0.15 ppb or less

This Utility

53.9 ppb

Legal Limit

80 ppb

National Average

30.1 ppb

State Average

31.1 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 health guideline of 0.15 parts per billion, or ppb, for the group of four trihalomethanes, or THM4/TTHM, was defined in a peer-reviewed scientific study by EWG and represents a one-in-one-million lifetime cancer risk level.

Pollution Sources

water treatment icon

Treatment Byproducts

Filtering Options

carbon filter icon

Activated Carbon

reverse osmosis icon

Reverse Osmosis

Trichloroacetic acid

Potential Effect: cancer7.3x EWG'S HEALTH GUIDELINE
THIS UTILITY3.63 ppb
EWG HEALTH GUIDELINE0.5 ppb
NO LEGAL LIMIT
DETAILS
X

Trichloroacetic acid

more about
this contaminant

Trichloroacetic acid, one of the group of five haloacetic acids regulated by federal standards, is formed when chlorine or other disinfectants are used to treat drinking water. Haloacetic acids and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Click here to read more about disinfection byproducts.

Trichloroacetic acid was found at 7.3 times above EWG's Health Guideline.

EWG Health Guideline

0.5 ppb or less

This Utility

3.63 ppb

National Average

6.38 ppb

State Average

3.53 ppb
NO LEGAL LIMIT
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 0.5 ppb for trichloroacetic acid was defined by the Environmental Protection Agency as a one-in-a-million lifetime risk of cancer. Values greater than one-in-a-million cancer risk level can result in increased cancer cases above one in a million people.

Pollution Sources

water treatment icon

Treatment Byproducts

Filtering Options

carbon filter icon

Activated Carbon

reverse osmosis icon

Reverse Osmosis

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; chemicals detected under the EPA's Unregulated Contaminant Monitoring Rule (UCMR 3) program in 2013 to 2015 (and subsequent testing when available), for which annual utility averages exceeded a health guideline established by a federal or state public health authority.


Other Contaminants Tested


Chemicals tested for but not detected from 2012 to 2017:

1,1,1,2-Tetrachloroethane, 1,1,1-Trichloroethane, 1,1,2,2-Tetrachloroethane, 1,1,2-Trichloroethane, 1,1-Dichloroethane, 1,1-Dichloroethylene, 1,1-Dichloropropene, 1,2,3-Trichlorobenzene, 1,2,3-Trichloropropane, 1,2,4-Trichlorobenzene, 1,2,4-Trimethylbenzene, 1,2-Dichloroethane, 1,3,5-Trimethylbenzene, 1,3-Butadiene, 1,3-Dichloropropane, 1,3-Dichloropropene, 1,4-Dioxane, 2,2-Dichloropropane, Alachlor (Lasso), Aluminum, Antimony, Arsenic, Atrazine, Benzene, Beryllium, bis(2-chloroethyl) ether, Bromobenzene, Bromochloromethane, Bromomethane, Cadmium, Carbon tetrachloride, Chlorodifluoromethane, Chloroethane, Chloromethane, Chromium (hexavalent), Chromium (total), cis-1,2-Dichloroethylene, cis-1,3-Dichloropropene, Cobalt, Dibromomethane, Dichlorodifluoromethane, Dichloromethane (methylene chloride), Ethylbenzene, Hexachlorobutadiene, Isopropylbenzene, m-Dichlorobenzene, Mercury (inorganic), Methyl ethyl ketone, Methyl isobutyl ketone, Molinate, Monochlorobenzene (chlorobenzene), MTBE, n-Butylbenzene, n-Propylbenzene, Naphthalene, Nitrate, Nitrite, o-Chlorotoluene, o-Dichlorobenzene, p-Chlorotoluene, p-Dichlorobenzene, p-Isopropyltoluene, Perchlorate, Perfluorobutane sulfonate (PFBS), Perfluoroheptanoic acid (PFHPA), Perfluorohexane sulfonate (PFHXS), Perfluorononanoic acid (PFNA), Perfluorooctane sulfonate (PFOS), Perfluorooctanoic acid (PFOA), sec-Butylbenzene, Selenium, Silver, Simazine, Styrene, tert-Butylbenzene, Tetrachloroethylene (perchloroethylene), Thallium, Thiobencarb, Toluene, trans-1,2-Dichloroethylene, trans-1,3-Dichloropropene, Trichloroethylene, Trichlorofluoromethane, Trichlorotrifluoroethane, Vanadium, Vinyl chloride, Xylenes (total)

City of Blythe compliance with legally mandated federal standards:

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

Information in this section on City of Blythe 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
Bromodichloromethane
Bromoform
Chlorate
Chloroform
Dibromochloromethane
Dichloroacetic acid
Total trihalomethanes (TTHMs)
Trichloroacetic acid
OTHER CONTAMINANTS
DETECTED
1,2-Dichloropropane
Barium
Dibromoacetic acid
Fluoride
Haloacetic acids (HAA5)
Manganese
Molybdenum
Monobromoacetic acid
Monochloroacetic acid
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