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EWG's Tap Water Database — 2021 UPDATE

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Shasta Csa - Sugarloaf, #2

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 2021 - March 2021), tap water provided by this water utility was in compliance with federal health-based drinking water standards.

Utility Details

  • Shasta County, California
  • Serves: 160
  • Data available: 2014-2019
  • Source: Surface water

Contaminants Detected

8

EXCEED
EWG HEALTH
GUIDELINES

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EWG Health Guidelines fill the gap in outdated government standards.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

Antimony

Potential Effect: harm to the stomach and intestines3.3x EWG'S HEALTH GUIDELINE
THIS UTILITY3.33 ppb
EWG HEALTH GUIDELINE1 ppb
LEGAL LIMIT6 ppb
DETAILS
X

Antimony is a naturally occurring metal that enters tap water from plumbing fittings and also from industrial uses, such as production of metal alloys, batteries and plastics. Antimony causes organ damage and shortens lifespans in studies of laboratory animals.

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

EWG Health Guideline

1 ppb or less

This Utility

3.33 ppb

Legal Limit

6 ppb

National Average

0.0154 ppb

State Average

0.00213 ppb
The state and national averages were calculated using the averages of the contaminant measurements for each utility in 2017-2019.
ppb = parts per billion

Health Risks

The EWG Health Guideline of 1 ppb for antimony 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 change to the stomach and intestines.

Pollution Sources

industry icon

Industry

urban area icon

Runoff & Sprawl

naturally occuring icon

Naturally Occurring

Filtering Options

reverse osmosis icon

Reverse Osmosis

Beryllium

Potential Effect: harm to the stomach and intestines2.2x EWG'S HEALTH GUIDELINE
THIS UTILITY2.20 ppb
EWG HEALTH GUIDELINE1 ppb
LEGAL LIMIT4 ppb
DETAILS
X

Beryllium is a toxic metal that is both naturally occurring and released into the environment from industrial pollution and incineration. Beryllium can damage lungs, bones and the digestive system.

Beryllium was found at 2.2 times above EWG's Health Guideline.

EWG Health Guideline

1 ppb or less

This Utility

2.2 ppb

Legal Limit

4 ppb

National Average

0.00191 ppb

State Average

0.000236 ppb
The state and national averages were calculated using the averages of the contaminant measurements for each utility in 2017-2019.
ppb = parts per billion

Health Risks

The EWG Health Guideline of 1 ppb for beryllium 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 harm to the stomach and intestines.

Pollution Sources

industry icon

Industry

Filtering Options

reverse osmosis icon

Reverse Osmosis

ion exchange icon

Ion Exchange

Chloroform

Potential Effect: cancer7.8x EWG'S HEALTH GUIDELINE
THIS UTILITY3.11 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 7.8 times above EWG's Health Guideline.

EWG Health Guideline

0.4 ppb or less

This Utility

3.11 ppb

National Average

15.5 ppb

State Average

7.38 ppb
NO LEGAL LIMIT
The state and national averages were calculated using the averages of the contaminant measurements for each utility in 2017-2019.
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

Dichloroacetic acid

Potential Effect: cancer14x EWG'S HEALTH GUIDELINE
THIS UTILITY2.81 ppb
EWG HEALTH GUIDELINE0.2 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 14 times above EWG's Health Guideline.

EWG Health Guideline

0.2 ppb or less

This Utility

2.81 ppb

National Average

7.97 ppb

State Average

4.34 ppb
NO LEGAL LIMIT
The state and national averages were calculated using the averages of the contaminant measurements for each utility in 2017-2019.
ppb = parts per billion

Health Risks

The EWG Health Guideline of 0.2 ppb for dichloroacetic acid was proposed in 2020 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.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

Haloacetic acids (HAA5)†

Potential Effect: cancer63x EWG'S HEALTH GUIDELINE
THIS UTILITY6.29 ppb
EWG HEALTH GUIDELINE0.1 ppb
LEGAL LIMIT60 ppb
DETAILS
X

Haloacetic acids (HAA5)

more about
this contaminant

Haloacetic acids are formed when disinfectants such as chlorine are added to tap water. The group of five haloacetic acids regulated by federal standards includes monochloroacetic acid, dichloroacetic acid, trichloroacetic acid, monobromoacetic acid and dibromoacetic acid.

Haloacetic acids (HAA5) was found at 63 times above EWG's Health Guideline.

EWG Health Guideline

0.1 ppb or less

This Utility

6.29 ppb

Legal Limit

60 ppb

National Average

17.1 ppb

State Average

12.5 ppb
The state and national averages were calculated using the averages of the contaminant measurements for each utility in 2017-2019.
ppb = parts per billion

Health Risks

The EWG Health Guideline of 0.1 ppb for the group of five haloacetic acids, or HAA5, was defined in a peer-reviewed scientific study by EWG and represents a one-in-a-million lifetime cancer risk level. This health guideline protects against cancer.

Pollution Sources

water treatment icon

Treatment Byproducts

Filtering Options

carbon filter icon

Activated Carbon

reverse osmosis icon

Reverse Osmosis

Radium, combined (-226 & -228)

Potential Effect: cancer9.6x EWG'S HEALTH GUIDELINE
THIS UTILITY0.48 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 9.6 times above EWG's Health Guideline.

EWG Health Guideline

0.05 pCi/L or less

This Utility

0.48 pCi/L

Legal Limit

5 pCi/L

National Average

0.46 pCi/L

State Average

0.12 pCi/L
The state and national averages were calculated using the averages of the contaminant measurements for each utility in 2014-2019.
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

Total trihalomethanes (TTHMs)†

Potential Effect: cancer41x EWG'S HEALTH GUIDELINE
THIS UTILITY6.22 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 41 times above EWG's Health Guideline.

EWG Health Guideline

0.15 ppb or less

This Utility

6.22 ppb

Legal Limit

80 ppb

National Average

29.7 ppb

State Average

27.8 ppb
The state and national averages were calculated using the averages of the contaminant measurements for each utility in 2017-2019.
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: cancer35x EWG'S HEALTH GUIDELINE
THIS UTILITY3.48 ppb
EWG HEALTH GUIDELINE0.1 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 35 times above EWG's Health Guideline.

EWG Health Guideline

0.1 ppb or less

This Utility

3.48 ppb

National Average

6.62 ppb

State Average

3.27 ppb
NO LEGAL LIMIT
The state and national averages were calculated using the averages of the contaminant measurements for each utility in 2017-2019.
ppb = parts per billion

Health Risks

The EWG Health Guideline of 0.1 ppb for trichloroacetic acid was proposed in 2020 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.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 2017-2019 for which annual utility averages exceeded an EWG-selected health guideline established by a federal or state public health authority; radiological contaminants detected between 2014 and 2019.

† HAA5 is a contaminant group that includes monochloroacetic acid, dichloroacetic acid, trichloroacetic acid, monobromoacetic acid and dibromoacetic acid. HAA9 is a contaminant group that includes the chemicals in HAA5 and bromochloroacetic acid, bromodichloroacetic acid, chlorodibromoacetic acid and tribromoacetic acid. TTHM is a contaminant group that includes bromodichloromethane, bromoform, chloroform and dibromochloromethane.


Other Contaminants Tested


Chemicals tested for but not detected from 2014 to 2019:

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-Dibromo-3-chloropropane (DBCP) , 1,2-Dichloroethane , 1,2-Dichloropropane , 1,3,5-Trimethylbenzene , 1,3-Dichloropropane , 1,3-Dichloropropene , 2,2-Dichloropropane , 2-Chloroethylvinyl ether , Arsenic , Asbestos , Benzene , Bromobenzene , Bromochloromethane , Bromodichloromethane , Bromoform , Bromomethane , Cadmium , Carbon tetrachloride , Chloroethane , Chloromethane , Chromium (total) , cis-1,2-Dichloroethylene , Dibromoacetic acid , Dibromochloromethane , Dibromomethane , Dichlorodifluoromethane , Dichloromethane (methylene chloride) , Ethyl tert-butyl ether , Ethylbenzene , Hexachlorobutadiene , Isopropyl ether , Isopropylbenzene , m-Dichlorobenzene , Monobromoacetic acid , Monochloroacetic acid , Monochlorobenzene (chlorobenzene) , MTBE , n-Butylbenzene , n-Propylbenzene , Naphthalene , Nitrate , Nitrite , o-Chlorotoluene , o-Dichlorobenzene , p-Chlorotoluene , p-Dichlorobenzene , p-Isopropyltoluene , Perchlorate , sec-Butylbenzene , Selenium , Silver , Styrene , tert-Amyl methyl ether , tert-Butyl alcohol , tert-Butylbenzene , Tetrachloroethylene (perchloroethylene) , Thallium , trans-1,2-Dichloroethylene , Trichloroethylene , Trichlorofluoromethane , Trichlorotrifluoroethane , Vinyl chloride , Xylenes (total)

Shasta Csa - Sugarloaf, #2 compliance with legally mandated federal standards:

  • From April 2019 to March 2021, Shasta Csa - Sugarloaf, #2 complied with health-based drinking water standards.
  • Exceeded EPA's Lead Action Level in the last five years:
    YES

Information in this section on Shasta Csa - Sugarloaf, #2 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
Antimony
Beryllium
Chloroform
Dichloroacetic acid
Haloacetic acids (HAA5)
Radium, combined (-226 & -228)
Total trihalomethanes (TTHMs)
Trichloroacetic acid
OTHER CONTAMINANTS
DETECTED
Aluminum
Barium
Chromium (hexavalent)
Fluoride
Manganese
Mercury (inorganic)
Toluene

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