Tucker Oaks East Water District

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: 105
Data available: 2014-2019
Source: Groundwater

Contaminants Detected

EXCEED
EWG HEALTH
GUIDELINES

4 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.

What To Do

Filter contaminants out Contact Your Local Official What About Lead?

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EWG Health Guidelines fill the gap in outdated government standards.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

VIEW: EXCEED GUIDELINES OTHER DETECTED

Nitrate

Potential Effect: cancer9x EWG'S HEALTH GUIDELINE

THIS UTILITY1.26 ppm

EWG HEALTH GUIDELINE0.14 ppm

LEGAL LIMIT10 ppm

DETAILS

Radium, combined (-226 & -228)

Potential Effect: cancer13x EWG'S HEALTH GUIDELINE

THIS UTILITY0.63 pCi/L

EWG HEALTH GUIDELINE0.05 pCi/L

LEGAL LIMIT5 pCi/L

DETAILS

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.

4,8-dioxa-3H-perfluorononanoic acid (ADONA)

THIS UTILITY0.900 ppt

NO EWG HEALTH GUIDELINE

NO LEGAL LIMIT

DETAILS

Chloromethane

THIS UTILITY0.980 ppb

EWG HEALTH GUIDELINE2.69 ppb

NO LEGAL LIMIT

DETAILS

Includes chemicals detected in 2017-2019 for which annual utility averages were lower than 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 were lower than an EWG-selected health guideline established by a federal or state public health authority.

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 , 11-chloroeicosafluoro-3-oxaundecane-1-sulfonic aci, 2,2-Dichloropropane , 2-Chloroethylvinyl ether , 9-chlorohexadecafluoro-3-oxanone-1-sulfonic acid (, Aluminum , Antimony , Arsenic , Barium , Benzene , Beryllium , Bromobenzene , Bromochloromethane , Bromodichloromethane , Bromoform , Bromomethane , Cadmium , Carbon tetrachloride , Chloroethane , Chloroform , Chromium (hexavalent) , Chromium (total) , cis-1,2-Dichloroethylene , Dibromochloromethane , Dibromomethane , Dichlorodifluoromethane , Dichloromethane (methylene chloride) , Ethyl tert-butyl ether , Ethylbenzene , Fluoride , Hexachlorobutadiene , Hexafluoropropylene oxide dimer acid (HFPO-DA) , Isopropyl ether , Isopropylbenzene , m-Dichlorobenzene , Manganese , Mercury (inorganic) , Monochlorobenzene (chlorobenzene) , MTBE , n-Butylbenzene , N-ethyl perfluorooctane sulfonamido acetic acid (N, N-methyl perfluorooctanesulfonamidoacetic acid , n-Propylbenzene , Naphthalene , Nitrite , o-Chlorotoluene , o-Dichlorobenzene , p-Chlorotoluene , p-Dichlorobenzene , p-Isopropyltoluene , Perchlorate , Perfluorobutane sulfonate (PFBS) , Perfluorodecanoic acid (PFDA) , Perfluorododecanoic acid (PFDoA) , Perfluoroheptanoic acid (PFHPA) , Perfluorohexane sulfonate (PFHXS) , Perfluorohexanoic Acid (PFHxA) , Perfluorononanoic acid (PFNA) , Perfluorooctane sulfonate (PFOS) , Perfluorooctanoic acid (PFOA) , Perfluorotetradecanoic acid (PFTA) , Perfluorotridecanoic acid (PFTrDA) , Perfluoroundecanoic acid (PFUnA) , sec-Butylbenzene , Selenium , Silver , Styrene , tert-Amyl methyl ether , tert-Butyl alcohol , tert-Butylbenzene , Tetrachloroethylene (perchloroethylene) , Thallium , Toluene , trans-1,2-Dichloroethylene , Trichloroethylene , Trichlorofluoromethane , Trichlorotrifluoroethane , Vinyl chloride , Xylenes (total)