R.r. Lewis Small Water Company
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.
- Sierra County, California
- Serves: 324
- Data available: 2012—2017
- Source: Groundwater
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EWG Health Guidelines fill the gap in outdated government standards.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.
Radium, combined (-226 & -228)Potential Effect: cancer29x EWG'S HEALTH GUIDELINE
Radium, combined (-226 & -228)more about
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 29 times above EWG's Health Guideline.
EWG Health Guideline
pCi/L = picocuries per liter
Health RisksEWG 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.
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.
Naphthalene is a polycyclic aromatic hydrocarbon, or PAH, released from combustion of fossil fuels and waste incinerators, and also used as a moth repellent. PAHs increase the risk of cancer; damage the immune, nervous and reproductive systems; and can harm developing fetuses.
How your levels compare
ppb = parts per billion
Runoff & Sprawl
Includes chemicals detected in 2015-2017 for which annual utility averages were lower than an EWG-selected health guideline established by a federal or state public health authori.
Other Contaminants Tested✕
Contaminants detected between 2012 and 2014 and were not part of EPA's UCMR-3 testing program or radiologicals:
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, 1,2-Dichloropropane, 1,3,5-Trimethylbenzene, 1,3-Dichloropropane, 1,3-Dichloropropene, 2,2-Dichloropropane, Arsenic, Benzene, Beryllium, Bromobenzene, Bromochloromethane, Bromodichloromethane, Bromoform, Bromomethane, Cadmium, Carbon tetrachloride, Chloroethane, Chloroform, Chloromethane, Chromium (hexavalent), Chromium (total), cis-1,2-Dichloroethylene, cis-1,3-Dichloropropene, Dibromoacetic acid, Dibromochloromethane, Dibromomethane, Dichloroacetic acid, Dichlorodifluoromethane, Dichloromethane (methylene chloride), Ethyl tert-butyl ether, Ethylbenzene, Fluoride, Hexachlorobutadiene, Isopropyl ether, Isopropylbenzene, m-Dichlorobenzene, Manganese, Mercury (inorganic), Monobromoacetic acid, Monochloroacetic acid, Monochlorobenzene (chlorobenzene), MTBE, n-Butylbenzene, n-Propylbenzene, Nitrate, Nitrate & nitrite, o-Chlorotoluene, o-Dichlorobenzene, p-Chlorotoluene, p-Dichlorobenzene, p-Isopropyltoluene, Perchlorate, sec-Butylbenzene, Silver, Styrene, tert-Amyl methyl ether, tert-Butyl alcohol, tert-Butylbenzene, Tetrachloroethylene (perchloroethylene), Thallium, Toluene, Total trihalomethanes (TTHMs), trans-1,2-Dichloroethylene, trans-1,3-Dichloropropene, Trichloroacetic acid, Trichloroethylene, Trichlorofluoromethane, Trichlorotrifluoroethane, Vinyl chloride, Xylenes (total)
R.r. Lewis Small Water Company compliance with legally mandated federal standards:
- From April 2016 to March 2019, R.r. Lewis Small Water Company complied with health-based drinking water standards.
- 12 QUARTERSin violation of any federal drinking water standard from April 2016 to March 2019
Information in this section on R.r. Lewis Small Water Company 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
|Contaminant||Activated Carbon||Reverse Osmosis||Ion Exchange|
|Radium, combined (-226 & -228)||✔||✔|
Contact Your Local Official
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Filter Out Contaminants
Check out our recommendations for filters to protect your water against the detected contaminants.EWG’S WATER FILTER GUIDE